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public/codemirror/theme/zenburn.css diff --git a/app/views/games/_file_edit_form.html.erb b/app/views/games/_file_edit_form.html.erb index 3698837a2..b91f5f66a 100644 --- a/app/views/games/_file_edit_form.html.erb +++ b/app/views/games/_file_edit_form.html.erb @@ -14,10 +14,11 @@ cm.showHint({hint: CodeMirror.hint.anyword}); };*/ var editor_CodeMirror = CodeMirror.fromTextArea(document.getElementById("challenge-answer-edit-small"), { - mode: {name: 'text/x-ruby', + mode: {name: "text/x-java", // version: 2, singleLineStringErrors: false}, lineNumbers: true, + theme: "ambiance", // extraKeys: {"Ctrl-Q": "autocomplete"}, // 快捷键 indentUnit: 4, //代码缩进为一个tab的距离 matchBrackets: true, diff --git a/app/views/games/show.html.erb b/app/views/games/show.html.erb index c89e4cfd3..6d1df1dbe 100644 --- a/app/views/games/show.html.erb +++ b/app/views/games/show.html.erb @@ -1,6 +1,6 @@ <%= javascript_include_tag 'baiduTemplate', 'jquery.datetimepicker.js' %> -<%= javascript_include_tag "/assets/codemirror/codemirror_python_ruby_c" %> -<%= stylesheet_link_tag "/assets/codemirror/codemirror" %> +<%= javascript_include_tag "/codemirror/lib/codemirror", "/codemirror/mode/javascript/javascript", "/codemirror/addon/edit/matchbrackets.js", "/codemirror/mode/clike/clike" %> +<%= stylesheet_link_tag "/codemirror/lib/codemirror", "/codemirror/theme/ambiance" %>
diff --git a/public/codemirror/.gitattributes b/public/codemirror/.gitattributes new file mode 100644 index 000000000..f8bdd60f4 --- /dev/null +++ b/public/codemirror/.gitattributes @@ -0,0 +1,8 @@ +*.txt text +*.js text +*.html text +*.md text +*.json text +*.yml text +*.css text +*.svg text diff --git a/public/codemirror/.npmignore b/public/codemirror/.npmignore new file mode 100644 index 000000000..f23ca7195 --- /dev/null +++ b/public/codemirror/.npmignore @@ -0,0 +1,11 @@ +/node_modules +/demo +/doc +/test +/test*.html +/index.html +/mode/*/*test.js +/mode/*/*.html +/mode/index.html +.* +bin diff --git a/public/codemirror/.travis.yml b/public/codemirror/.travis.yml new file mode 100644 index 000000000..52b8b8159 --- /dev/null +++ b/public/codemirror/.travis.yml @@ -0,0 +1,4 @@ +language: node_js +node_js: + - stable +sudo: false diff --git a/public/codemirror/AUTHORS b/public/codemirror/AUTHORS new file mode 100644 index 000000000..08b2610bb --- /dev/null +++ b/public/codemirror/AUTHORS @@ -0,0 +1,639 @@ +List of CodeMirror contributors. Updated before every release. + +4r2r +Aaron Brooks +Abdelouahab +Abe Fettig +Adam Ahmed +Adam King +adanlobato +Adán Lobato +Adrian Aichner +Adrian Heine +Adrien Bertrand +aeroson +Ahmad Amireh +Ahmad M. Zawawi +ahoward +Akeksandr Motsjonov +Alasdair Smith +Alberto González Palomo +Alberto Pose +Albert Xing +Alexander Pavlov +Alexander Schepanovski +Alexander Shvets +Alexander Solovyov +Alexandre Bique +alexey-k +Alex Piggott +Aliaksei Chapyzhenka +Allen Sarkisyan +Ami Fischman +Amin Shali +Amin Ullah Khan +amshali@google.com +Amsul +amuntean +Amy +Ananya Sen +anaran +AndersMad +Anders Nawroth +Anderson Mesquita +Anders Wåglund +Andrea G +Andreas Reischuck +Andres Taylor +Andre von Houck +Andrew Cheng +Andrey Fedorov +Andrey Klyuchnikov +Andrey Lushnikov +Andrey Shchekin +Andy Joslin +Andy Kimball +Andy Li +Angelo +angelozerr +angelo.zerr@gmail.com +Ankit +Ankit Ahuja +Ansel Santosa +Anthony Dugois +anthonygego +Anthony Gégo +Anthony Grimes +Anton Kovalyov +Apollo Zhu +AQNOUCH Mohammed +areos +Arnab Bose +Arthur Müller +Arun Narasani +as3boyan +atelierbram +AtomicPages LLC +Atul Bhouraskar +Aurelian Oancea +Axel Lewenhaupt +Barret Rennie +Basarat Ali Syed +Bastian Müller +belhaj +Bem Jones-Bey +benbro +Beni Cherniavsky-Paskin +Benjamin DeCoste +Ben Keen +Ben Miller +Ben Mosher +Bernhard Sirlinger +Bert Chang +Bharad +BigBlueHat +Billy Moon +binny +B Krishna Chaitanya +Blaine G +blukat29 +boomyjee +borawjm +Brad Metcalf +Brandon Frohs +Brandon Wamboldt +Brett Zamir +Brian Grinstead +Brian Sletten +brrd +Bruce Mitchener +Bryan Massoth +Caitlin Potter +Calin Barbat +callodacity +Camilo Roca +Chad Jolly +Chandra Sekhar Pydi +Charles Skelton +Cheah Chu Yeow +Chris Coyier +Chris Ford +Chris Granger +Chris Houseknecht +Chris Lohfink +Chris Morgan +Chris Smith +Christian Oyarzun +Christian Petrov +Christopher Brown +Christopher Kramer +Christopher Mitchell +Christopher Pfohl +Chunliang Lyu +ciaranj +CodeAnimal +coderaiser +Cole R Lawrence +ComFreek +Curtis Gagliardi +dagsta +daines +Dale Jung +Dan Bentley +Dan Heberden +Daniel, Dao Quang Minh +Daniele Di Sarli +Daniel Faust +Daniel Huigens +Daniel Kesler +Daniel KJ +Daniel Neel +Daniel Parnell +Danny Yoo +darealshinji +Darius Roberts +Dave Brondsema +Dave Myers +David Barnett +David H. 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Hassan +YNH Webdev +Yunchi Luo +Yuvi Panda +Zac Anger +Zachary Dremann +Zeno Rocha +Zhang Hao +zziuni +魏鹏刚 diff --git a/public/codemirror/CHANGELOG.md b/public/codemirror/CHANGELOG.md new file mode 100644 index 000000000..758a1cc03 --- /dev/null +++ b/public/codemirror/CHANGELOG.md @@ -0,0 +1,1074 @@ +## 5.25.0 (2017-02-22) + +### Bug fixes + +In contentEditable-mode, properly locate changes that repeat a character when inserted with IME. + +Fix handling of selections bigger than the viewport in contentEditable mode. + +Improve handling of changes that insert or delete lines in contentEditable mode. + +Count Unicode control characters 0x80 to 0x9F as special (non-printing) chars. + +Fix handling of shadow DOM roots when finding the active element. + +Add `role=presentation` to more DOM elements to improve screen reader support. + +[merge addon](http://codemirror.net/doc/manual.html#addon_merge): Make aligning of unchanged chunks more robust. + +[comment addon](http://codemirror.net/doc/manual.html#addon_comment): Fix comment-toggling on a block of text that starts and ends in a (differnet) block comment. + +[javascript mode](http://codemirror.net/mode/javascript/): Improve support for TypeScript syntax. + +[r mode](http://codemirror.net/mode/r/): Fix indentation after semicolon-less statements. + +[shell mode](http://codemirror.net/mode/shell/): Properly handle escaped parentheses in parenthesized expressions. + +[markdown mode](http://codemirror.net/mode/markdown/): Fix a few bugs around leaving fenced code blocks. + +[soy mode](http://codemirror.net/mode/soy/): Improve indentation. + +### New features + +[lint addon](http://codemirror.net/doc/manual.html#addon_lint): Support asynchronous linters that return promises. + +[continuelist addon](http://codemirror.net/doc/manual.html#addon_continuelist): Support continuing task lists. + +[vim bindings](http://codemirror.net/mode/demo/vim.html): Make Y behave like yy. + +[sql mode](http://codemirror.net/mode/sql/): Support sqlite dialect. + +## 5.24.2 (2017-02-22) + +### Bug fixes + +[javascript mode](http://codemirror.net/mode/javascript/): Support computed class method names. + +[merge addon](http://codemirror.net/doc/manual.html#addon_merge): Improve aligning of unchanged code in the presence of marks and line widgets. + +## 5.24.0 (2017-02-20) + +### Bug fixes + +A cursor directly before a line-wrapping break is now drawn before or after the line break depending on which direction you arrived from. + +Visual cursor motion in line-wrapped right-to-left text should be much more correct. + +Fix bug in handling of read-only marked text. + +[shell mode](http://codemirror.net/mode/shell/): Properly tokenize nested parentheses. + +[python mode](http://codemirror.net/mode/python/): Support underscores in number literals. + +[sass mode](http://codemirror.net/mode/sass/): Uses the full list of CSS properties and keywords from the CSS mode, rather than defining its own incomplete subset. + +[css mode](http://codemirror.net/mode/css/): Expose `lineComment` property for LESS and SCSS dialects. Recognize vendor prefixes on pseudo-elements. + +[julia mode](http://codemirror.net/mode/julia/): Properly indent `elseif` lines. + +[markdown mode](http://codemirror.net/mode/markdown/): Properly recognize the end of fenced code blocks when inside other markup. + +[scala mode](http://codemirror.net/mode/clike/): Improve handling of operators containing #, @, and : chars. + +[xml mode](http://codemirror.net/mode/xml/): Allow dashes in HTML tag names. + +[javascript mode](http://codemirror.net/mode/javascript/): Improve parsing of async methods, TypeScript-style comma-separated superclass lists. + +[indent-fold addon](http://codemirror.net/demo/folding.html): Ignore comment lines. + +### New features + +Positions now support a `sticky` property which determines whether they should be associated with the character before (value `"before"`) or after (value `"after"`) them. + +[vim bindings](http://codemirror.net/mode/demo/vim.html): Make it possible to remove built-in bindings through the API. + +[comment addon](http://codemirror.net/doc/manual.html#addon_comment): Support a per-mode useInnerComments option to optionally suppress descending to the inner modes to get comment strings. + +### Breaking changes + +The [sass mode](http://codemirror.net/mode/sass/) now depends on the [css mode](http://codemirror.net/mode/css/). + +## 5.23.0 (2017-01-19) + +### Bug fixes + +Presentation-related elements DOM elements are now marked as such to help screen readers. + +[markdown mode](http://codemirror.net/mode/markdown/): Be more picky about what HTML tags look like to avoid false positives. + +### New features + +`findModeByMIME` now understands `+json` and `+xml` MIME suffixes. + +[closebrackets addon](http://codemirror.net/doc/manual.html#addon_closebrackets): Add support for an `override` option to ignore language-specific defaults. + +[panel addon](http://codemirror.net/doc/manual.html#addon_panel): Add a `stable` option that auto-scrolls the content to keep it in the same place when inserting/removing a panel. + +## 5.22.2 (2017-01-12) + +### Bug fixes + +Include rollup.config.js in NPM package, so that it can be used to build from source. + +## 5.22.0 (2016-12-20) + +### Bug fixes + +[sublime bindings](http://codemirror.net/demo/sublime.html): Make `selectBetweenBrackets` work with multiple cursors. + +[javascript mode](http://codemirror.net/mode/javascript/): Fix issues with parsing complex TypeScript types, imports, and exports. + +A contentEditable editor instance with autofocus enabled no longer crashes during initializing. + +### New features + +[emacs bindings](http://codemirror.net/demo/emacs.html): Export `CodeMirror.emacs` to allow other addons to hook into Emacs-style functionality. + +[active-line addon](http://codemirror.net/doc/manual.html#addon_active-line): Add `nonEmpty` option. + +New event: [`optionChange`](http://codemirror.net/doc/manual.html#event_optionChange). + +## 5.21.0 (2016-11-21) + +### Bug fixes + +Tapping/clicking the editor in [contentEditable mode](http://codemirror.net/doc/manual.html#option_inputStyle) on Chrome now puts the cursor at the tapped position. + +Fix various crashes and misbehaviors when reading composition events in [contentEditable mode](http://codemirror.net/doc/manual.html#option_inputStyle). + +Catches and ignores an IE 'Unspecified Error' when creating an editor in an iframe before there is a ``. + +[merge addon](http://codemirror.net/doc/manual.html#addon_merge): Fix several issues in the chunk-aligning feature. + +[verilog mode](http://codemirror.net/mode/verilog): Rewritten to address various issues. + +[julia mode](http://codemirror.net/mode/julia): Recognize Julia 0.5 syntax. + +[swift mode](http://codemirror.net/mode/swift): Various fixes and adjustments to current syntax. + +[markdown mode](http://codemirror.net/mode/markdown): Allow lists without a blank line above them. + +### New features + +The [`setGutterMarker`](http://codemirror.net/doc/manual.html#setGutterMarker), [`clearGutter`](http://codemirror.net/doc/manual.html#clearGutter), and [`lineInfo`](http://codemirror.net/doc/manual.html#lineInfo) methods are now available on `Doc` objects. + +The [`heightAtLine`](http://codemirror.net/doc/manual.html#heightAtLine) method now takes an extra argument to allow finding the height at the top of the line's line widgets. + +[ruby mode](http://codemirror.net/mode/ruby): `else` and `elsif` are now immediately indented. + +[vim bindings](http://codemirror.net/demo/vim.html): Bind Ctrl-T and Ctrl-D to in- and dedent in insert mode. + +## 5.20.2 (2016-10-21) + +### Bug fixes + +Fix `CodeMirror.version` returning the wrong version number. + +## 5.20.0 (2016-10-20) + +### Bug fixes + +Make `newlineAndIndent` command work with multiple cursors on the same line. + +Make sure keypress events for backspace are ignored. + +Tokens styled with overlays no longer get a nonsense `cm-cm-overlay` class. + +Line endings for pasted content are now normalized to the editor's [preferred ending](http://codemirror.net/doc/manual.html#option_lineSeparator). + +[javascript mode](http://codemirror.net/mode/javascript): Improve support for class expressions. Support TypeScript optional class properties, the `abstract` keyword, and return type declarations for arrow functions. + +[css mode](http://codemirror.net/mode/css): Fix highlighting of mixed-case keywords. + +[closebrackets addon](http://codemirror.net/doc/manual.html#addon_closebrackets): Improve behavior when typing a quote before a string. + +### New features + +The core is now maintained as a number of small files, using ES6 syntax and modules, under the `src/` directory. A git checkout no longer contains a working `codemirror.js` until you `npm build` (but when installing from NPM, it is included). + +The [`refresh`](http://codemirror.net/doc/manual.html#event_refresh) event is now documented and stable. + +## 5.19.0 (2016-09-20) + +### Bugfixes + +[erlang mode](http://codemirror.net/mode/erlang): Fix mode crash when trying to read an empty context. + +[comment addon](http://codemirror.net/doc/manual.html#addon_comment): Fix broken behavior when toggling comments inside a comment. + +xml-fold addon: Fix a null-dereference bug. + +Page up and page down now do something even in single-line documents. + +Fix an issue where the cursor position could be off in really long (~8000 character) tokens. + +### New features + +[javascript mode](http://codemirror.net/mode/javascript): Better indentation when semicolons are missing. Better support for TypeScript classes, optional parameters, and the `type` keyword. + +The [`blur`](http://codemirror.net/doc/manual.html#event_blur) and [`focus`](http://codemirror.net/doc/manual.html#event_focus) events now pass the DOM event to their handlers. + +## 5.18.2 (2016-08-23) + +### Bugfixes + +[vue mode](http://codemirror.net/mode/vue): Fix outdated references to renamed Pug mode dependency. + +## 5.18.0 (2016-08-22) + +### Bugfixes + +Make sure [gutter backgrounds](http://codemirror.net/doc/manual.html#addLineClass) stick to the rest of the gutter during horizontal scrolling. + +The contenteditable [`inputStyle`](http://codemirror.net/doc/manual.html#option_inputStyle) now properly supports pasting on pre-Edge IE versions. + +[javascript mode](http://codemirror.net/mode/javascript): Fix some small parsing bugs and improve TypeScript support. + +[matchbrackets addon](http://codemirror.net/doc/manual.html#addon_matchbrackets): Fix bug where active highlighting was left in editor when the addon was disabled. + +[match-highlighter addon](http://codemirror.net/doc/manual.html#addon_match-highlighter): Only start highlighting things when the editor gains focus. + +[javascript-hint addon](http://codemirror.net/doc/manual.html#addon_javascript-hint): Also complete non-enumerable properties. + +### New features + +The [`addOverlay`](http://codemirror.net/doc/manual.html#addOverlay) method now supports a `priority` option to control the order in which overlays are applied. + +MIME types that end in `+json` now default to the JSON mode when the MIME itself is not defined. + +### Breaking changes + +The mode formerly known as Jade was renamed to [Pug](http://codemirror.net/mode/pug). + +The [Python mode](http://codemirror.net/mode/python) now defaults to Python 3 (rather than 2) syntax. + +## 5.17.0 (2016-07-19) + +### Bugfixes + +Fix problem with wrapped trailing whitespace displaying incorrectly. + +Prevent IME dialog from overlapping typed content in Chrome. + +Improve measuring of characters near a line wrap. + +[javascript mode](http://codemirror.net/mode/javascript): Improve support for `async`, allow trailing commas in `import` lists. + +[vim bindings](http://codemirror.net/demo/vim.html): Fix backspace in replace mode. + +[sublime bindings](http://codemirror.net/demo/sublime.html): Fix some key bindings on OS X to match Sublime Text. + +### New features + +[markdown mode](http://codemirror.net/mode/markdown): Add more classes to image links in highlight-formatting mode. + +## 5.16.0 (2016-06-20) + +### Bugfixes + +Fix glitches when dragging content caused by the drop indicator receiving mouse events. + +Make Control-drag work on Firefox. + +Make clicking or selection-dragging at the end of a wrapped line select the right position. + +[show-hint addon](http://codemirror.net/doc/manual.html#addon_show-hint): Prevent widget scrollbar from hiding part of the hint text. + +[rulers addon](http://codemirror.net/doc/manual.html#addon_rulers): Prevent rulers from forcing a horizontal editor scrollbar. + +### New features + +[search addon](http://codemirror.net/doc/manual.html#addon_search): Automatically bind search-related keys in persistent dialog. + +[sublime keymap](http://codemirror.net/demo/sublime.html): Add a multi-cursor aware smart backspace binding. + +## 5.15.2 (2016-05-20) + +### Bugfixes + +Fix a critical document corruption bug that occurs when a document is gradually grown. + +## 5.15.0 (2016-05-20) + +### Bugfixes + +Fix bug that caused the selection to reset when focusing the editor in contentEditable input mode. + +Fix issue where not all ASCII control characters were being replaced by placeholders. + +Remove the assumption that all modes have a `startState` method from several wrapping modes. + +Fix issue where the editor would complain about overlapping collapsed ranges when there weren't any. + +Optimize document tree building when loading or pasting huge chunks of content. + +[markdown mode](http://codemirror.net/mode/markdown/): Fix several issues in matching link targets. + +[clike mode](http://codemirror.net/mode/clike/): Improve indentation of C++ template declarations. + +### New features + +Explicitly bind Ctrl-O on OS X to make that binding (“open line”) act as expected. + +Pasting [linewise-copied](http://codemirror.net/doc/manual.html#option_lineWiseCopyCut) content when there is no selection now inserts the lines above the current line. + +[javascript mode](http://codemirror.net/mode/javascript/): Support `async`/`await` and improve support for TypeScript type syntax. + +## 5.14.2 (2016-04-20) + +### Bugfixes + +Push a new package to NPM due to an [NPM bug](https://github.com/npm/npm/issues/5082) omitting the LICENSE file in 5.14.0. + +Set `dataTransfer.effectAllowed` in `dragstart` handler to help browsers use the right drag icon. + +Add the [mbox mode](http://codemirror.net/mode/mbox/index.html) to `mode/meta.js`. + +## 5.14.0 (2016-04-20) + +### Bugfixes + +[`posFromIndex`](http://codemirror.net/doc/manual.html#posFromIndex) and [`indexFromPos`](http://codemirror.net/doc/manual.html#indexFromPos) now take [`lineSeparator`](http://codemirror.net/doc/manual.html#option_lineSeparator) into account. + +[vim bindings](http://codemirror.net/demo/vim.html): Only call `.save()` when it is actually available. + +[comment addon](http://codemirror.net/doc/manual.html#addon_comment): Be careful not to mangle multi-line strings. + +[Python mode](http://codemirror.net/mode/python/index.html): Improve distinguishing of decorators from `@` operators. + +[`findMarks`](http://codemirror.net/doc/manual.html#findMarks): No longer return marks that touch but don't overlap given range. + +### New features + +[vim bindings](http://codemirror.net/demo/vim.html): Add yank command. + +[match-highlighter addon](http://codemirror.net/doc/manual.html#addon_match-highlighter): Add `trim` option to disable ignoring of whitespace. + +[PowerShell mode](http://codemirror.net/mode/powershell/index.html): Added. + +[Yacas mode](http://codemirror.net/mode/yacas/index.html): Added. + +[Web IDL mode](http://codemirror.net/mode/webidl/index.html): Added. + +[SAS mode](http://codemirror.net/mode/sas/index.html): Added. + +[mbox mode](http://codemirror.net/mode/mbox/index.html): Added. + +## 5.13.2 (2016-03-23) + +### Bugfixes + +Solves a problem where the gutter would sometimes not extend all the way to the end of the document. + +## 5.13.0 (2016-03-21) + +### New features + +New DOM event forwarded: [`"dragleave"`](http://codemirror.net/doc/manual.html#event_dom). + +[protobuf mode](http://codemirror.net/mode/protobuf/index.html): Newly added. + +### Bugfixes + +Fix problem where [`findMarks`](http://codemirror.net/doc/manual.html#findMarks) sometimes failed to find multi-line marks. + +Fix crash that showed up when atomic ranges and bidi text were combined. + +[show-hint addon](http://codemirror.net/demo/complete.html): Completion widgets no longer close when the line indented or dedented. + +[merge addon](http://codemirror.net/demo/merge.html): Fix bug when merging chunks at the end of the file. + +[placeholder addon](http://codemirror.net/doc/manual.html#addon_placeholder): No longer gets confused by [`swapDoc`](http://codemirror.net/doc/manual.html#swapDoc). + +[simplescrollbars addon](http://codemirror.net/doc/manual.html#addon_simplescrollbars): Fix invalid state when deleting at end of document. + +[clike mode](http://codemirror.net/mode/clike/index.html): No longer gets confused when a comment starts after an operator. + +[markdown mode](http://codemirror.net/mode/markdown/index.html): Now supports CommonMark-style flexible list indentation. + +[dylan mode](http://codemirror.net/mode/dylan/index.html): Several improvements and fixes. + +## 5.12.0 (2016-02-19) + +### New features + +[Vim bindings](http://codemirror.net/demo/vim.html): Ctrl-Q is now an alias for Ctrl-V. + +[Vim bindings](http://codemirror.net/demo/vim.html): The Vim API now exposes an `unmap` method to unmap bindings. + +[active-line addon](http://codemirror.net/demo/activeline.html): This addon can now style the active line's gutter. + +[FCL mode](http://codemirror.net/mode/fcl/): Newly added. + +[SQL mode](http://codemirror.net/mode/sql/): Now has a Postgresql dialect. + +### Bugfixes + +Fix [issue](https://github.com/codemirror/CodeMirror/issues/3781) where trying to scroll to a horizontal position outside of the document's width could cause the gutter to be positioned incorrectly. + +Use absolute, rather than fixed positioning in the context-menu intercept hack, to work around a [problem](https://github.com/codemirror/CodeMirror/issues/3238) when the editor is inside a transformed parent container. + +Solve a [problem](https://github.com/codemirror/CodeMirror/issues/3821) where the horizontal scrollbar could hide text in Firefox. + +Fix a [bug](https://github.com/codemirror/CodeMirror/issues/3834) that caused phantom scroll space under the text in some situations. + +[Sublime Text bindings](http://codemirror.net/demo/sublime.html): Bind delete-line to Shift-Ctrl-K on OS X. + +[Markdown mode](http://codemirror.net/mode/markdown/): Fix [issue](https://github.com/codemirror/CodeMirror/issues/3787) where the mode would keep state related to fenced code blocks in an unsafe way, leading to occasional corrupted parses. + +[Markdown mode](http://codemirror.net/mode/markdown/): Ignore backslashes in code fragments. + +[Markdown mode](http://codemirror.net/mode/markdown/): Use whichever mode is registered as `text/html` to parse HTML. + +[Clike mode](http://codemirror.net/mode/clike/): Improve indentation of Scala `=>` functions. + +[Python mode](http://codemirror.net/mode/python/): Improve indentation of bracketed code. + +[HTMLMixed mode](http://codemirror.net/mode/htmlmixed/): Support multi-line opening tags for sub-languages (` + + + + + +
+

Active Line Demo

+
+ + + +

Styling the current cursor line.

+ + + +
diff --git a/public/codemirror/demo/anywordhint.html b/public/codemirror/demo/anywordhint.html new file mode 100644 index 000000000..0a7caece2 --- /dev/null +++ b/public/codemirror/demo/anywordhint.html @@ -0,0 +1,79 @@ + + +CodeMirror: Any Word Completion Demo + + + + + + + + + + + +
+

Any Word Completion Demo

+
+ +

Press ctrl-space to activate autocompletion. The +completion uses +the anyword-hint.js +module, which simply looks at nearby words in the buffer and completes +to those.

+ + +
diff --git a/public/codemirror/demo/bidi.html b/public/codemirror/demo/bidi.html new file mode 100644 index 000000000..ceaffd32e --- /dev/null +++ b/public/codemirror/demo/bidi.html @@ -0,0 +1,94 @@ + + +CodeMirror: Bi-directional Text Demo + + + + + + + + + +
+

Bi-directional Text Demo

+
+
+ Editor default direction: + + +
+
+ +
+
+ + + +

Demonstration of bi-directional text support. See + the related + blog post for more background.

+ +
diff --git a/public/codemirror/demo/btree.html b/public/codemirror/demo/btree.html new file mode 100644 index 000000000..ba07bc74f --- /dev/null +++ b/public/codemirror/demo/btree.html @@ -0,0 +1,83 @@ + + +CodeMirror: B-Tree visualization + + + + + + + + +
+

B-Tree visualization

+
+
+ + + +

+ +
diff --git a/public/codemirror/demo/buffers.html b/public/codemirror/demo/buffers.html new file mode 100644 index 000000000..16ffc7dfe --- /dev/null +++ b/public/codemirror/demo/buffers.html @@ -0,0 +1,109 @@ + + +CodeMirror: Multiple Buffer & Split View Demo + + + + + + + + + + +
+

Multiple Buffer & Split View Demo

+ + +
+
+ Select buffer: +     +
+
+
+ Select buffer: +     +
+ + + +

Demonstration of + using linked documents + to provide a split view on a document, and + using swapDoc + to use a single editor to display multiple documents.

+ +
diff --git a/public/codemirror/demo/changemode.html b/public/codemirror/demo/changemode.html new file mode 100644 index 000000000..9405932ab --- /dev/null +++ b/public/codemirror/demo/changemode.html @@ -0,0 +1,58 @@ + + +CodeMirror: Mode-Changing Demo + + + + + + + + + + +
+

Mode-Changing Demo

+
+ +

On changes to the content of the above editor, a (crude) script +tries to auto-detect the language used, and switches the editor to +either JavaScript or Scheme mode based on that.

+ + +
diff --git a/public/codemirror/demo/closebrackets.html b/public/codemirror/demo/closebrackets.html new file mode 100644 index 000000000..d702f5269 --- /dev/null +++ b/public/codemirror/demo/closebrackets.html @@ -0,0 +1,52 @@ + + +CodeMirror: Closebrackets Demo + + + + + + + + + + +
+

Closebrackets Demo

+
+ + +
diff --git a/public/codemirror/demo/closetag.html b/public/codemirror/demo/closetag.html new file mode 100644 index 000000000..79959d2c4 --- /dev/null +++ b/public/codemirror/demo/closetag.html @@ -0,0 +1,41 @@ + + +CodeMirror: Close-Tag Demo + + + + + + + + + + + + + + +
+

Close-Tag Demo

+
+ + +
diff --git a/public/codemirror/demo/complete.html b/public/codemirror/demo/complete.html new file mode 100644 index 000000000..18e17c812 --- /dev/null +++ b/public/codemirror/demo/complete.html @@ -0,0 +1,126 @@ + + +CodeMirror: Autocomplete Demo + + + + + + + + + + + + + +
+

Autocomplete Demo

+
+ +

Press ctrl-space to activate autocompletion. Built +on top of the show-hint +and javascript-hint +addons.

+ +
+ + + +
diff --git a/public/codemirror/demo/emacs.html b/public/codemirror/demo/emacs.html new file mode 100644 index 000000000..c626b8d40 --- /dev/null +++ b/public/codemirror/demo/emacs.html @@ -0,0 +1,75 @@ + + +CodeMirror: Emacs bindings demo + + + + + + + + + + + + + + + + +
+

Emacs bindings demo

+
+ +

The emacs keybindings are enabled by +including keymap/emacs.js and setting +the keyMap option to "emacs". Because +CodeMirror's internal API is quite different from Emacs, they are only +a loose approximation of actual emacs bindings, though.

+ +

Also note that a lot of browsers disallow certain keys from being +captured. For example, Chrome blocks both Ctrl-W and Ctrl-N, with the +result that idiomatic use of Emacs keys will constantly close your tab +or open a new window.

+ + + +
diff --git a/public/codemirror/demo/folding.html b/public/codemirror/demo/folding.html new file mode 100644 index 000000000..1882b7c81 --- /dev/null +++ b/public/codemirror/demo/folding.html @@ -0,0 +1,133 @@ + + + + CodeMirror: Code Folding Demo + + + + + + + + + + + + + + + + + + + + + + + + + + + +
+

Code Folding Demo

+
+
JavaScript:
+
+
HTML:
+
+
Python:
+
+
Markdown:
+
+
+ +
+ diff --git a/public/codemirror/demo/fullscreen.html b/public/codemirror/demo/fullscreen.html new file mode 100644 index 000000000..1fbdc488e --- /dev/null +++ b/public/codemirror/demo/fullscreen.html @@ -0,0 +1,83 @@ + + +CodeMirror: Full Screen Editing + + + + + + + + + + + + +
+

Full Screen Editing

+
+ + +

Demonstration of + the fullscreen + addon. Press F11 when cursor is in the editor to + toggle full screen editing. Esc can also be used + to exit full screen editing.

+
diff --git a/public/codemirror/demo/hardwrap.html b/public/codemirror/demo/hardwrap.html new file mode 100644 index 000000000..84ba0cc0c --- /dev/null +++ b/public/codemirror/demo/hardwrap.html @@ -0,0 +1,75 @@ + + +CodeMirror: Hard-wrapping Demo + + + + + + + + + + +
+

Hard-wrapping Demo

+
+ +

Demonstration of +the hardwrap addon. +The above editor has its change event hooked up to +the wrapParagraphsInRange method, so that the paragraphs +are reflown as you are typing.

+ + + +
diff --git a/public/codemirror/demo/html5complete.html b/public/codemirror/demo/html5complete.html new file mode 100644 index 000000000..411baae3e --- /dev/null +++ b/public/codemirror/demo/html5complete.html @@ -0,0 +1,56 @@ + + + + CodeMirror: HTML completion demo + + + + + + + + + + + + + + + + + + + +
+

HTML completion demo

+ +

Shows the XML completer + parameterized with information about the tags in HTML. + Press ctrl-space to activate completion.

+ +
+ + +
+ diff --git a/public/codemirror/demo/indentwrap.html b/public/codemirror/demo/indentwrap.html new file mode 100644 index 000000000..3d3d0af6a --- /dev/null +++ b/public/codemirror/demo/indentwrap.html @@ -0,0 +1,59 @@ + + +CodeMirror: Indented wrapped line demo + + + + + + + + + +
+

Indented wrapped line demo

+
+ +

This page uses a hack on top of the "renderLine" + event to make wrapped text line up with the base indentation of + the line.

+ + + +
diff --git a/public/codemirror/demo/lint.html b/public/codemirror/demo/lint.html new file mode 100644 index 000000000..96009b4e1 --- /dev/null +++ b/public/codemirror/demo/lint.html @@ -0,0 +1,171 @@ + + +CodeMirror: Linter Demo + + + + + + + + + + + + + + + + + + +
+

Linter Demo

+ + +

+ +

+ +

+ + +
diff --git a/public/codemirror/demo/loadmode.html b/public/codemirror/demo/loadmode.html new file mode 100644 index 000000000..809cd9022 --- /dev/null +++ b/public/codemirror/demo/loadmode.html @@ -0,0 +1,72 @@ + + +CodeMirror: Lazy Mode Loading Demo + + + + + + + + + + +
+

Lazy Mode Loading Demo

+

Current mode: text/plain

+
+

Filename, mime, or mode name:

+ + +
diff --git a/public/codemirror/demo/marker.html b/public/codemirror/demo/marker.html new file mode 100644 index 000000000..3a8b85000 --- /dev/null +++ b/public/codemirror/demo/marker.html @@ -0,0 +1,52 @@ + + +CodeMirror: Breakpoint Demo + + + + + + + + + +
+

Breakpoint Demo

+
+ +

Click the line-number gutter to add or remove 'breakpoints'.

+ + + +
diff --git a/public/codemirror/demo/markselection.html b/public/codemirror/demo/markselection.html new file mode 100644 index 000000000..d4c8a7a0d --- /dev/null +++ b/public/codemirror/demo/markselection.html @@ -0,0 +1,52 @@ + + +CodeMirror: Selection Marking Demo + + + + + + + + + + +
+

Selection Marking Demo

+
+ + + +

Simple addon to easily mark (and style) selected text. Docs.

+ +
diff --git a/public/codemirror/demo/matchhighlighter.html b/public/codemirror/demo/matchhighlighter.html new file mode 100644 index 000000000..893d72134 --- /dev/null +++ b/public/codemirror/demo/matchhighlighter.html @@ -0,0 +1,103 @@ + + +CodeMirror: Match Highlighter Demo + + + + + + + + + + + + +
+

Match Highlighter Demo

+
+ + + +

Search and highlight occurences of the selected text.

+ +
diff --git a/public/codemirror/demo/matchtags.html b/public/codemirror/demo/matchtags.html new file mode 100644 index 000000000..175639a39 --- /dev/null +++ b/public/codemirror/demo/matchtags.html @@ -0,0 +1,48 @@ + + +CodeMirror: Tag Matcher Demo + + + + + + + + + + + +
+

Tag Matcher Demo

+ + +
+ + + +

Put the cursor on or inside a pair of tags to highlight them. + Press Ctrl-J to jump to the tag that matches the one under the + cursor.

+
diff --git a/public/codemirror/demo/merge.html b/public/codemirror/demo/merge.html new file mode 100644 index 000000000..9e2d14ea3 --- /dev/null +++ b/public/codemirror/demo/merge.html @@ -0,0 +1,123 @@ + + +CodeMirror: merge view demo + + + + + + + + + + + + + + + +
+

merge view demo

+ + +
+ +

The merge +addon provides an interface for displaying and merging diffs, +either two-way +or three-way. +The left (or center) pane is editable, and the differences with the +other pane(s) are optionally shown live as you edit +it. In the two-way configuration, there are also options to pad changed +sections to align them, and to collapse unchanged +stretches of text.

+ +

This addon depends on +the google-diff-match-patch +library to compute the diffs.

+ + +
diff --git a/public/codemirror/demo/multiplex.html b/public/codemirror/demo/multiplex.html new file mode 100644 index 000000000..ca8c80aed --- /dev/null +++ b/public/codemirror/demo/multiplex.html @@ -0,0 +1,75 @@ + + +CodeMirror: Multiplexing Parser Demo + + + + + + + + + + +
+

Multiplexing Parser Demo

+
+ + + +

Demonstration of a multiplexing mode, which, at certain + boundary strings, switches to one or more inner modes. The out + (HTML) mode does not get fed the content of the << + >> blocks. See + the manual and + the source for more + information.

+ +

+ Parsing/Highlighting Tests: + normal, + verbose. +

+ +
diff --git a/public/codemirror/demo/mustache.html b/public/codemirror/demo/mustache.html new file mode 100644 index 000000000..ae4e6a891 --- /dev/null +++ b/public/codemirror/demo/mustache.html @@ -0,0 +1,69 @@ + + +CodeMirror: Overlay Parser Demo + + + + + + + + + + +
+

Overlay Parser Demo

+
+ + + +

Demonstration of a mode that parses HTML, highlighting + the Mustache templating + directives inside of it by using the code + in overlay.js. View + source to see the 15 lines of code needed to accomplish this.

+ +
diff --git a/public/codemirror/demo/panel.html b/public/codemirror/demo/panel.html new file mode 100644 index 000000000..1ce3d87c7 --- /dev/null +++ b/public/codemirror/demo/panel.html @@ -0,0 +1,136 @@ + + +CodeMirror: Panel Demo + + + + + + + + + + + + + +
+ +

Panel Demo

+ +
+ +
+ +

+ The panel + addon allows you to display panels above or below an editor. +
+ Click the links below to add panels at the given position: +

+ +
+

+ top + after-top + before-bottom + bottom +

+

+ You can also replace an existing panel: +

+
+ + +
+ + + +
+ +
diff --git a/public/codemirror/demo/placeholder.html b/public/codemirror/demo/placeholder.html new file mode 100644 index 000000000..432331a48 --- /dev/null +++ b/public/codemirror/demo/placeholder.html @@ -0,0 +1,45 @@ + + +CodeMirror: Placeholder demo + + + + + + + + + +
+

Placeholder demo

+
+ +

The placeholder + plug-in adds an option placeholder that can be set to + make text appear in the editor when it is empty and not focused. + If the source textarea has a placeholder attribute, + it will automatically be inherited.

+ + + +
diff --git a/public/codemirror/demo/preview.html b/public/codemirror/demo/preview.html new file mode 100644 index 000000000..19e1530b8 --- /dev/null +++ b/public/codemirror/demo/preview.html @@ -0,0 +1,87 @@ + + +CodeMirror: HTML5 preview + + + + + + + + + + + + +
+

HTML5 preview

+ + + + +
diff --git a/public/codemirror/demo/requirejs.html b/public/codemirror/demo/requirejs.html new file mode 100644 index 000000000..438ef9fbf --- /dev/null +++ b/public/codemirror/demo/requirejs.html @@ -0,0 +1,70 @@ + + + + CodeMirror: HTML completion demo + + + + + + + + + + + + +
+

RequireJS module loading demo

+ +

This demo does the same thing as + the HTML5 completion demo, but + loads its dependencies + with Require.js, rather than + explicitly. Press ctrl-space to activate + completion.

+ +
+ + + + +
+ diff --git a/public/codemirror/demo/resize.html b/public/codemirror/demo/resize.html new file mode 100644 index 000000000..1c1ef390a --- /dev/null +++ b/public/codemirror/demo/resize.html @@ -0,0 +1,51 @@ + + +CodeMirror: Autoresize Demo + + + + + + + + + +
+

Autoresize Demo

+
+ +

By setting an editor's height style +to auto and giving +the viewportMargin +a value of Infinity, CodeMirror can be made to +automatically resize to fit its content.

+ + + +
diff --git a/public/codemirror/demo/rulers.html b/public/codemirror/demo/rulers.html new file mode 100644 index 000000000..2ac411158 --- /dev/null +++ b/public/codemirror/demo/rulers.html @@ -0,0 +1,49 @@ + + +CodeMirror: Ruler Demo + + + + + + + + + +
+

Ruler Demo

+ + + +

Demonstration of +the rulers addon, which +displays vertical lines at given column offsets.

+ +
diff --git a/public/codemirror/demo/runmode.html b/public/codemirror/demo/runmode.html new file mode 100644 index 000000000..ab8938d8d --- /dev/null +++ b/public/codemirror/demo/runmode.html @@ -0,0 +1,62 @@ + + +CodeMirror: Mode Runner Demo + + + + + + + + + +
+

Mode Runner Demo

+ + +
+ + 

+
+    
+
+    
Running a CodeMirror mode outside of the editor.
+    The CodeMirror.runMode function, defined
+    in addon/runmode/runmode.js takes the following arguments:

+
+    

+      
text (string)

+      
The document to run through the highlighter.

+      
mode (mode spec)

+      
The mode to use (must be loaded as normal).

+      
output (function or DOM node)

+      
If this is a function, it will be called for each token with
+      two arguments, the token's text and the token's style class (may
+      be null for unstyled tokens). If it is a DOM node,
+      the tokens will be converted to span elements as in
+      an editor, and inserted into the node
+      (through innerHTML).

+    

+
+  

diff --git a/public/codemirror/demo/search.html b/public/codemirror/demo/search.html
new file mode 100644
index 000000000..4ca81e20f
--- /dev/null
+++ b/public/codemirror/demo/search.html
@@ -0,0 +1,99 @@
+
+
+CodeMirror: Search/Replace Demo
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

+
Search/Replace Demo

+

+
+    
+
+    
Demonstration of primitive search/replace functionality. The
+    keybindings (which can be configured with custom keymaps) are:

+    

+      
Ctrl-F / Cmd-F
Start searching

+      
Ctrl-G / Cmd-G
Find next

+      
Shift-Ctrl-G / Shift-Cmd-G
Find previous

+      
Shift-Ctrl-F / Cmd-Option-F
Replace

+      
Shift-Ctrl-R / Shift-Cmd-Option-F
Replace all

+      
Alt-F
Persistent search (dialog doesn't autoclose,
+      enter to find next, Shift-Enter to find previous)

+      
Alt-G
Jump to line

+    

+    
Searching is enabled by
+    including addon/search/search.js
+    and addon/search/searchcursor.js.
+    Jump to line - including addon/search/jump-to-line.js.

+    
For good-looking input dialogs, you also want to include
+    addon/dialog/dialog.js
+    and addon/dialog/dialog.css.

+  

diff --git a/public/codemirror/demo/simplemode.html b/public/codemirror/demo/simplemode.html
new file mode 100644
index 000000000..d719b63d1
--- /dev/null
+++ b/public/codemirror/demo/simplemode.html
@@ -0,0 +1,186 @@
+
+
+CodeMirror: Simple Mode Demo
+
+
+
+
+
+
+
+
+
+
+
+

+
Simple Mode Demo

+
+
The mode/simple
+addon allows CodeMirror modes to be specified using a relatively simple
+declarative format. This format is not as powerful as writing code
+directly against the mode
+interface, but is a lot easier to get started with, and
+sufficiently expressive for many simple language modes.

+
+
This interface is still in flux. It is unlikely to be scrapped or
+overhauled completely, so do start writing code against it, but
+details might change as it stabilizes, and you might have to tweak
+your code when upgrading.

+
+
Simple modes (loosely based on
+the Common
+JavaScript Syntax Highlighting Specification, which never took
+off), are state machines, where each state has a number of rules that
+match tokens. A rule describes a type of token that may occur in the
+current state, and possibly a transition to another state caused by
+that token.

+
+
The CodeMirror.defineSimpleMode(name, states) method
+takes a mode name and an object that describes the mode's states. The
+editor below shows an example of such a mode (and is itself
+highlighted by the mode shown in it).

+
+

+
+
Each state is an array of rules. A rule may have the following properties:

+
+

+  
regex: string | RegExp

+  
The regular expression that matches the token. May be a string
+  or a regex object. When a regex, the ignoreCase flag
+  will be taken into account when matching the token. This regex
+  should only capture groups when the token property is
+  an array.

+  
token: string | null

+  
An optional token style. Multiple styles can be specified by
+  separating them with dots or spaces. When the regex for
+  this rule captures groups, it must capture all of the
+  string (since JS provides no way to find out where a group matched),
+  and this property must hold an array of token styles that has one
+  style for each matched group.

+  
sol: boolean

+  
When true, this token will only match at the start of the line.
+  (The ^ regexp marker doesn't work as you'd expect in
+  this context because of limitations in JavaScript's RegExp
+  API.)

+  
next: string

+  
When a next property is present, the mode will
+  transfer to the state named by the property when the token is
+  encountered.

+  
push: string

+  
Like next, but instead replacing the current state
+  by the new state, the current state is kept on a stack, and can be
+  returned to with the pop directive.

+  
pop: bool

+  
When true, and there is another state on the state stack, will
+  cause the mode to pop that state off the stack and transition to
+  it.

+  
mode: {spec, end, persistent}

+  
Can be used to embed another mode inside a mode. When present,
+  must hold an object with a spec property that describes
+  the embedded mode, and an optional end end property
+  that specifies the regexp that will end the extent of the mode. When
+  a persistent property is set (and true), the nested
+  mode's state will be preserved between occurrences of the mode.

+  
indent: bool

+  
When true, this token changes the indentation to be one unit
+  more than the current line's indentation.

+  
dedent: bool

+  
When true, this token will pop one scope off the indentation
+  stack.

+  
dedentIfLineStart: bool

+  
If a token has its dedent property set, it will, by
+  default, cause lines where it appears at the start to be dedented.
+  Set this property to false to prevent that behavior.

+

+
+
The meta property of the states object is special, and
+will not be interpreted as a state. Instead, properties set on it will
+be set on the mode, which is useful for properties
+like lineComment,
+which sets the comment style for a mode. The simple mode addon also
+recognizes a few such properties:

+
+

+  
dontIndentStates: array<string>

+  
An array of states in which the mode's auto-indentation should
+  not take effect. Usually used for multi-line comment and string
+  states.

+

+
+
+
+
+
+

diff --git a/public/codemirror/demo/simplescrollbars.html b/public/codemirror/demo/simplescrollbars.html
new file mode 100644
index 000000000..9d4093264
--- /dev/null
+++ b/public/codemirror/demo/simplescrollbars.html
@@ -0,0 +1,82 @@
+
+
+CodeMirror: Simple Scrollbar Demo
+
+
+
+
+
+
+
+
+
+
+
+
+

+
Simple Scrollbar Demo

+

+
+
The simplescrollbars addon defines two
+styles of non-native scrollbars: "simple" and "overlay" (click to try), which can be passed to
+the scrollbarStyle option. These implement
+the scrollbar using DOM elements, allowing more control over
+its appearance.

+
+  
+

diff --git a/public/codemirror/demo/spanaffectswrapping_shim.html b/public/codemirror/demo/spanaffectswrapping_shim.html
new file mode 100644
index 000000000..879d99b60
--- /dev/null
+++ b/public/codemirror/demo/spanaffectswrapping_shim.html
@@ -0,0 +1,85 @@
+
+
+CodeMirror: Automatically derive odd wrapping behavior for your browser
+
+
+
+
+
+

+
Automatically derive odd wrapping behavior for your browser

+
+
+    
This is a hack to automatically derive
+    a spanAffectsWrapping regexp for a browser. See the
+    comments above that variable
+    in lib/codemirror.js
+    for some more details.

+
+    

+    

+
+    
+  

diff --git a/public/codemirror/demo/sublime.html b/public/codemirror/demo/sublime.html
new file mode 100644
index 000000000..233dd83a4
--- /dev/null
+++ b/public/codemirror/demo/sublime.html
@@ -0,0 +1,77 @@
+
+
+CodeMirror: Sublime Text bindings demo
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

+
Sublime Text bindings demo

+
+
The sublime keymap defines many Sublime Text-specific
+bindings for CodeMirror. See the code below for an overview.

+
+
Enable the keymap by
+loading keymap/sublime.js
+and setting
+the keyMap
+option to "sublime".

+
+
(A lot of the search functionality is still missing.)
+
+
+
+

diff --git a/public/codemirror/demo/tern.html b/public/codemirror/demo/tern.html
new file mode 100644
index 000000000..d0dee8a70
--- /dev/null
+++ b/public/codemirror/demo/tern.html
@@ -0,0 +1,133 @@
+
+
+CodeMirror: Tern Demo
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

+
Tern Demo

+

+
+
Demonstrates integration of Tern
+and CodeMirror. The following keys are bound:

+
+

+  
Ctrl-Space
Autocomplete

+  
Ctrl-O
Find docs for the expression at the cursor

+  
Ctrl-I
Find type at cursor

+  
Alt-.
Jump to definition (Alt-, to jump back)

+  
Ctrl-Q
Rename variable

+  
Ctrl-.
Select all occurrences of a variable

+

+
+
Documentation is sparse for now. See the top of
+the script for a rough API
+overview.

+
+
+
+  

diff --git a/public/codemirror/demo/theme.html b/public/codemirror/demo/theme.html
new file mode 100644
index 000000000..9194dcea8
--- /dev/null
+++ b/public/codemirror/demo/theme.html
@@ -0,0 +1,168 @@
+
+
+CodeMirror: Theme Demo
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

+
Theme Demo

+

+
+
Select a theme: 
+

+
+
+  

diff --git a/public/codemirror/demo/trailingspace.html b/public/codemirror/demo/trailingspace.html
new file mode 100644
index 000000000..1992ba3ff
--- /dev/null
+++ b/public/codemirror/demo/trailingspace.html
@@ -0,0 +1,48 @@
+
+
+CodeMirror: Trailing Whitespace Demo
+
+
+
+
+
+
+
+
+
+

+
Trailing Whitespace Demo

+

+
+    
+
+
Uses
+the trailingspace
+addon to highlight trailing whitespace.

+
+  

diff --git a/public/codemirror/demo/variableheight.html b/public/codemirror/demo/variableheight.html
new file mode 100644
index 000000000..d49942864
--- /dev/null
+++ b/public/codemirror/demo/variableheight.html
@@ -0,0 +1,67 @@
+
+
+CodeMirror: Variable Height Demo
+
+
+
+
+
+
+
+
+
+
+

+
Variable Height Demo

+

+    
+  

diff --git a/public/codemirror/demo/vim.html b/public/codemirror/demo/vim.html
new file mode 100644
index 000000000..f27b8b8e2
--- /dev/null
+++ b/public/codemirror/demo/vim.html
@@ -0,0 +1,112 @@
+
+
+CodeMirror: Vim bindings demo
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

+
Vim bindings demo

+
+
Note: The CodeMirror vim bindings do not have an
+active maintainer. That means that if you report bugs in it, they are
+likely to go unanswered. It also means that if you want to help, you
+are very welcome to look
+at the
+open issues and see which ones you can solve.

+
+

+
Key buffer: 

+
+
The vim keybindings are enabled by including keymap/vim.js and setting the
+keyMap option to vim.

+
+
Features

+
+
    
+  
  • All common motions and operators, including text objects
    • 
+  
  • Operator motion orthogonality
    • 
+  
  • Visual mode - characterwise, linewise, blockwise
    • 
+  
  • Full macro support (q, @)
    • 
+  
  • Incremental highlighted search (/, ?, #, *, g#, g*)
    • 
+  
  • Search/replace with confirm (:substitute, :%s)
    • 
+  
  • Search history
    • 
+  
  • Jump lists (Ctrl-o, Ctrl-i)
    • 
+  
  • Key/command mapping with API (:map, :nmap, :vmap)
    • 
+  
  • Sort (:sort)
    • 
+  
  • Marks (`, ')
    • 
+  
  • :global
    • 
+  
  • Insert mode behaves identical to base CodeMirror
    • 
+  
  • Cross-buffer yank/paste
    • 
+

+
+
For the full list of key mappings and Ex commands, refer to the
+defaultKeymap and defaultExCommandMap at the
+top of keymap/vim.js.
+
+
Note that while the vim mode tries to emulate the most useful
+features of vim as faithfully as possible, it does not strive to
+become a complete vim implementation

+
+    
+
+  

diff --git a/public/codemirror/demo/visibletabs.html b/public/codemirror/demo/visibletabs.html
new file mode 100644
index 000000000..2eec337ed
--- /dev/null
+++ b/public/codemirror/demo/visibletabs.html
@@ -0,0 +1,62 @@
+
+
+CodeMirror: Visible tabs demo
+
+
+
+
+
+
+
+
+
+

+
Visible tabs demo

+

+
+
Tabs inside the editor are spans with the
+class cm-tab, and can be styled.

+
+    
+
+  

diff --git a/public/codemirror/demo/widget.html b/public/codemirror/demo/widget.html
new file mode 100644
index 000000000..da39a9297
--- /dev/null
+++ b/public/codemirror/demo/widget.html
@@ -0,0 +1,85 @@
+
+
+CodeMirror: Inline Widget Demo
+
+
+
+
+
+
+
+
+
+
+

+
Inline Widget Demo

+
+
+    

+    
+
This demo runs JSHint over the code
+in the editor (which is the script used on this page), and
+inserts line widgets to
+display the warnings that JSHint comes up with.

+  

diff --git a/public/codemirror/demo/xmlcomplete.html b/public/codemirror/demo/xmlcomplete.html
new file mode 100644
index 000000000..043f0c429
--- /dev/null
+++ b/public/codemirror/demo/xmlcomplete.html
@@ -0,0 +1,119 @@
+
+
+CodeMirror: XML Autocomplete Demo
+
+
+
+
+
+
+
+
+
+
+
+
+

+
XML Autocomplete Demo

+

+
+    
Press ctrl-space, or type a '<' character to
+    activate autocompletion. This demo defines a simple schema that
+    guides completion. The schema can be customized—see
+    the manual.

+
+    
Development of the xml-hint addon was kindly
+    sponsored
+    by www.xperiment.mobi.

+
+    
+  

diff --git a/public/codemirror/doc/activebookmark.js b/public/codemirror/doc/activebookmark.js
new file mode 100644
index 000000000..407282d02
--- /dev/null
+++ b/public/codemirror/doc/activebookmark.js
@@ -0,0 +1,57 @@
+// Kludge in HTML5 tag recognition in IE8
+document.createElement("section");
+document.createElement("article");
+
+(function() {
+  if (!window.addEventListener) return;
+  var pending = false, prevVal = null;
+
+  function updateSoon() {
+    if (!pending) {
+      pending = true;
+      setTimeout(update, 250);
+    }
+  }
+
+  function update() {
+    pending = false;
+    var marks = document.getElementById("nav").getElementsByTagName("a"), found;
+    for (var i = 0; i < marks.length; ++i) {
+      var mark = marks[i], m;
+      if (mark.getAttribute("data-default")) {
+        if (found == null) found = i;
+      } else if (m = mark.href.match(/#(.*)/)) {
+        var ref = document.getElementById(m[1]);
+        if (ref && ref.getBoundingClientRect().top < 50)
+          found = i;
+      }
+    }
+    if (found != null && found != prevVal) {
+      prevVal = found;
+      var lis = document.getElementById("nav").getElementsByTagName("li");
+      for (var i = 0; i < lis.length; ++i) lis[i].className = "";
+      for (var i = 0; i < marks.length; ++i) {
+        if (found == i) {
+          marks[i].className = "active";
+          for (var n = marks[i]; n; n = n.parentNode)
+            if (n.nodeName == "LI") n.className = "active";
+        } else {
+          marks[i].className = "";
+        }
+      }
+    }
+  }
+
+  window.addEventListener("scroll", updateSoon);
+  window.addEventListener("load", updateSoon);
+  window.addEventListener("hashchange", function() {
+    setTimeout(function() {
+      var hash = document.location.hash, found = null, m;
+      var marks = document.getElementById("nav").getElementsByTagName("a");
+      for (var i = 0; i < marks.length; i++)
+        if ((m = marks[i].href.match(/(#.*)/)) && m[1] == hash) { found = i; break; }
+      if (found != null) for (var i = 0; i < marks.length; i++)
+        marks[i].className = i == found ? "active" : "";
+    }, 300);
+  });
+})();
diff --git a/public/codemirror/doc/docs.css b/public/codemirror/doc/docs.css
new file mode 100644
index 000000000..881d2aa45
--- /dev/null
+++ b/public/codemirror/doc/docs.css
@@ -0,0 +1,271 @@
+@font-face {
+  font-family: 'Source Sans Pro';
+  font-style: normal;
+  font-weight: 400;
+  src: local('Source Sans Pro'), local('SourceSansPro-Regular'), url(//themes.googleusercontent.com/static/fonts/sourcesanspro/v5/ODelI1aHBYDBqgeIAH2zlBM0YzuT7MdOe03otPbuUS0.woff) format('woff');
+}
+
+body, html { margin: 0; padding: 0; height: 100%; }
+section, article { display: block; padding: 0; }
+
+body {
+  background: #f8f8f8;
+  font-family: 'Source Sans Pro', Helvetica, Arial, sans-serif;
+  line-height: 1.5;
+}
+
+p { margin-top: 0; }
+
+h2, h3, h1 {
+  font-weight: normal;
+  margin-bottom: .7em;
+}
+h1 { font-size: 140%; }
+h2 { font-size: 120%; }
+h3 { font-size: 110%; }
+article > h2:first-child, section:first-child > h2 { margin-top: 0; }
+
+#nav h1 {
+  margin-right: 12px;
+  margin-top: 0;
+  margin-bottom: 2px;
+  color: #d30707;
+  letter-spacing: .5px;
+}
+
+a, a:visited, a:link, .quasilink {
+  color: #A21313;
+  text-decoration: none;
+}
+
+em {
+  padding-right: 2px;
+}
+
+.quasilink {
+  cursor: pointer;
+}
+
+article {
+  max-width: 700px;
+  margin: 0 0 0 160px;
+  border-left: 2px solid #E30808;
+  border-right: 1px solid #ddd;
+  padding: 30px 50px 100px 50px;
+  background: white;
+  z-index: 2;
+  position: relative;
+  min-height: 100%;
+  box-sizing: border-box;
+  -moz-box-sizing: border-box;
+}
+
+#nav {
+  position: fixed;
+  padding-top: 30px;
+  max-height: 100%;
+  box-sizing: -moz-border-box;
+  box-sizing: border-box;
+  overflow-y: auto;
+  left: 0; right: none;
+  width: 160px;
+  text-align: right;
+  z-index: 1;
+}
+
+@media screen and (min-width: 1000px) {
+  article {
+    margin: 0 auto;
+  }
+  #nav {
+    right: 50%;
+    width: auto;
+    border-right: 349px solid transparent;
+  }
+}
+
+#nav ul {
+  display: block;
+  margin: 0; padding: 0;
+  margin-bottom: 32px;
+}
+
+#nav li {
+  display: block;
+  margin-bottom: 4px;
+}
+
+#nav li ul {
+  font-size: 80%;
+  margin-bottom: 0;
+  display: none;
+}
+
+#nav li.active ul {
+  display: block;
+}
+
+#nav li li a {
+  padding-right: 20px;
+  display: inline-block;
+}
+
+#nav ul a {
+  color: black;
+  padding: 0 7px 1px 11px;
+}
+
+#nav ul a.active, #nav ul a:hover {
+  border-bottom: 1px solid #E30808;
+  margin-bottom: -1px;
+  color: #E30808;
+}
+
+#logo {
+  border: 0;
+  margin-right: 12px;
+  margin-bottom: 25px;
+}
+
+section {
+  border-top: 1px solid #E30808;
+  margin: 1.5em 0;
+}
+
+section.first {
+  border: none;
+  margin-top: 0;
+}
+
+#demo {
+  position: relative;
+}
+
+#demolist {
+  position: absolute;
+  right: 5px;
+  top: 5px;
+  z-index: 25;
+}
+
+.yinyang {
+  position: absolute;
+  top: -10px;
+  left: 0; right: 0;
+  margin: auto;
+  display: block;
+  height: 120px;
+}
+
+.actions {
+  margin: 1em 0 0;
+  min-height: 100px;
+  position: relative;
+}
+
+.actionspicture {
+  pointer-events: none;
+  position: absolute;
+  height: 100px;
+  top: 0; left: 0; right: 0;
+}
+
+.actionlink {
+  pointer-events: auto;
+  font-family: arial;
+  font-size: 80%;
+  font-weight: bold;
+  position: absolute;
+  top: 0; bottom: 0;
+  line-height: 1;
+  height: 1em;
+  margin: auto;
+}
+
+.actionlink.download {
+  color: white;
+  right: 50%;
+  margin-right: 13px;
+  text-shadow: -1px 1px 3px #b00, -1px -1px 3px #b00, 1px 0px 3px #b00;
+}
+
+.actionlink.fund {
+  color: #b00;
+  left: 50%;
+  margin-left: 15px;
+}
+
+.actionlink:hover {
+  text-decoration: underline;
+}
+
+.actionlink a {
+  color: inherit;
+}
+
+.actionsleft {
+  float: left;
+}
+
+.actionsright {
+  float: right;
+  text-align: right;
+}
+
+@media screen and (max-width: 800px) {
+  .actions {
+    padding-top: 120px;
+  }
+  .actionsleft, .actionsright {
+    float: none;
+    text-align: left;
+    margin-bottom: 1em;
+  }
+}
+
+th {
+  text-decoration: underline;
+  font-weight: normal;
+  text-align: left;
+}
+
+#features ul {
+  list-style: none;
+  margin: 0 0 1em;
+  padding: 0 0 0 1.2em;
+}
+
+#features li:before {
+  content: "-";
+  width: 1em;
+  display: inline-block;
+  padding: 0;
+  margin: 0;
+  margin-left: -1em;
+}
+
+.rel {
+  margin-bottom: 0;
+}
+.rel-note {
+  margin-top: 0;
+  color: #555;
+}
+
+pre {
+  padding-left: 15px;
+  border-left: 2px solid #ddd;
+}
+
+code {
+  padding: 0 2px;
+}
+
+strong {
+  text-decoration: underline;
+  font-weight: normal;
+}
+
+.field {
+  border: 1px solid #A21313;
+}
diff --git a/public/codemirror/doc/internals.html b/public/codemirror/doc/internals.html
new file mode 100644
index 000000000..079466f63
--- /dev/null
+++ b/public/codemirror/doc/internals.html
@@ -0,0 +1,504 @@
+
+
+CodeMirror: Internals
+
+
+
+
+
+
+
+

+
+
(Re-) Implementing A Syntax-Highlighting Editor in JavaScript

+
+

+  Topic: JavaScript, code editor implementation

+  Author: Marijn Haverbeke

+  Date: March 2nd 2011 (updated November 13th 2011)
+

+
+
Caution: this text was written briefly after
+version 2 was initially written. It no longer (even including the
+update at the bottom) fully represents the current implementation. I'm
+leaving it here as a historic document. For more up-to-date
+information, look at the entries
+tagged cm-internals
+on my blog.

+
+
This is a followup to
+my Brutal Odyssey to the
+Dark Side of the DOM Tree story. That one describes the
+mind-bending process of implementing (what would become) CodeMirror 1.
+This one describes the internals of CodeMirror 2, a complete rewrite
+and rethink of the old code base. I wanted to give this piece another
+Hunter Thompson copycat subtitle, but somehow that would be out of
+place—the process this time around was one of straightforward
+engineering, requiring no serious mind-bending whatsoever.

+
+
So, what is wrong with CodeMirror 1? I'd estimate, by mailing list
+activity and general search-engine presence, that it has been
+integrated into about a thousand systems by now. The most prominent
+one, since a few weeks,
+being Google
+code's project hosting. It works, and it's being used widely.

+
+
Still, I did not start replacing it because I was bored. CodeMirror
+1 was heavily reliant on designMode
+or contentEditable (depending on the browser). Neither of
+these are well specified (HTML5 tries
+to specify
+their basics), and, more importantly, they tend to be one of the more
+obscure and buggy areas of browser functionality—CodeMirror, by using
+this functionality in a non-typical way, was constantly running up
+against browser bugs. WebKit wouldn't show an empty line at the end of
+the document, and in some releases would suddenly get unbearably slow.
+Firefox would show the cursor in the wrong place. Internet Explorer
+would insist on linkifying everything that looked like a URL or email
+address, a behaviour that can't be turned off. Some bugs I managed to
+work around (which was often a frustrating, painful process), others,
+such as the Firefox cursor placement, I gave up on, and had to tell
+user after user that they were known problems, but not something I
+could help.

+
+
Also, there is the fact that designMode (which seemed
+to be less buggy than contentEditable in Webkit and
+Firefox, and was thus used by CodeMirror 1 in those browsers) requires
+a frame. Frames are another tricky area. It takes some effort to
+prevent getting tripped up by domain restrictions, they don't
+initialize synchronously, behave strangely in response to the back
+button, and, on several browsers, can't be moved around the DOM
+without having them re-initialize. They did provide a very nice way to
+namespace the library, though—CodeMirror 1 could freely pollute the
+namespace inside the frame.

+
+
Finally, working with an editable document means working with
+selection in arbitrary DOM structures. Internet Explorer (8 and
+before) has an utterly different (and awkward) selection API than all
+of the other browsers, and even among the different implementations of
+document.selection, details about how exactly a selection
+is represented vary quite a bit. Add to that the fact that Opera's
+selection support tended to be very buggy until recently, and you can
+imagine why CodeMirror 1 contains 700 lines of selection-handling
+code.

+
+
And that brings us to the main issue with the CodeMirror 1
+code base: The proportion of browser-bug-workarounds to real
+application code was getting dangerously high. By building on top of a
+few dodgy features, I put the system in a vulnerable position—any
+incompatibility and bugginess in these features, I had to paper over
+with my own code. Not only did I have to do some serious stunt-work to
+get it to work on older browsers (as detailed in the
+previous story), things
+also kept breaking in newly released versions, requiring me to come up
+with new scary hacks in order to keep up. This was starting
+to lose its appeal.

+
+

+  
General Approach

+
+
What CodeMirror 2 does is try to sidestep most of the hairy hacks
+that came up in version 1. I owe a lot to the
+ACE editor for inspiration on how to
+approach this.

+
+
I absolutely did not want to be completely reliant on key events to
+generate my input. Every JavaScript programmer knows that key event
+information is horrible and incomplete. Some people (most awesomely
+Mihai Bazon with Ymacs) have been able
+to build more or less functioning editors by directly reading key
+events, but it takes a lot of work (the kind of never-ending, fragile
+work I described earlier), and will never be able to properly support
+things like multi-keystoke international character
+input. [see below for caveat]

+
+
So what I do is focus a hidden textarea, and let the browser
+believe that the user is typing into that. What we show to the user is
+a DOM structure we built to represent his document. If this is updated
+quickly enough, and shows some kind of believable cursor, it feels
+like a real text-input control.

+
+
Another big win is that this DOM representation does not have to
+span the whole document. Some CodeMirror 1 users insisted that they
+needed to put a 30 thousand line XML document into CodeMirror. Putting
+all that into the DOM takes a while, especially since, for some
+reason, an editable DOM tree is slower than a normal one on most
+browsers. If we have full control over what we show, we must only
+ensure that the visible part of the document has been added, and can
+do the rest only when needed. (Fortunately, the onscroll
+event works almost the same on all browsers, and lends itself well to
+displaying things only as they are scrolled into view.)

+

+

+  
Input

+
+
ACE uses its hidden textarea only as a text input shim, and does
+all cursor movement and things like text deletion itself by directly
+handling key events. CodeMirror's way is to let the browser do its
+thing as much as possible, and not, for example, define its own set of
+key bindings. One way to do this would have been to have the whole
+document inside the hidden textarea, and after each key event update
+the display DOM to reflect what's in that textarea.

+
+
That'd be simple, but it is not realistic. For even medium-sized
+document the editor would be constantly munging huge strings, and get
+terribly slow. What CodeMirror 2 does is put the current selection,
+along with an extra line on the top and on the bottom, into the
+textarea.

+
+
This means that the arrow keys (and their ctrl-variations), home,
+end, etcetera, do not have to be handled specially. We just read the
+cursor position in the textarea, and update our cursor to match it.
+Also, copy and paste work pretty much for free, and people get their
+native key bindings, without any special work on my part. For example,
+I have emacs key bindings configured for Chrome and Firefox. There is
+no way for a script to detect this. [no longer the case]

+
+
Of course, since only a small part of the document sits in the
+textarea, keys like page up and ctrl-end won't do the right thing.
+CodeMirror is catching those events and handling them itself.

+

+

+  
Selection

+
+
Getting and setting the selection range of a textarea in modern
+browsers is trivial—you just use the selectionStart
+and selectionEnd properties. On IE you have to do some
+insane stuff with temporary ranges and compensating for the fact that
+moving the selection by a 'character' will treat \r\n as a single
+character, but even there it is possible to build functions that
+reliably set and get the selection range.

+
+
But consider this typical case: When I'm somewhere in my document,
+press shift, and press the up arrow, something gets selected. Then, if
+I, still holding shift, press the up arrow again, the top of my
+selection is adjusted. The selection remembers where its head
+and its anchor are, and moves the head when we shift-move.
+This is a generally accepted property of selections, and done right by
+every editing component built in the past twenty years.

+
+
But not something that the browser selection APIs expose.

+
+
Great. So when someone creates an 'upside-down' selection, the next
+time CodeMirror has to update the textarea, it'll re-create the
+selection as an 'upside-up' selection, with the anchor at the top, and
+the next cursor motion will behave in an unexpected way—our second
+up-arrow press in the example above will not do anything, since it is
+interpreted in exactly the same way as the first.

+
+
No problem. We'll just, ehm, detect that the selection is
+upside-down (you can tell by the way it was created), and then, when
+an upside-down selection is present, and a cursor-moving key is
+pressed in combination with shift, we quickly collapse the selection
+in the textarea to its start, allow the key to take effect, and then
+combine its new head with its old anchor to get the real
+selection.

+
+
In short, scary hacks could not be avoided entirely in CodeMirror
+2.

+
+
And, the observant reader might ask, how do you even know that a
+key combo is a cursor-moving combo, if you claim you support any
+native key bindings? Well, we don't, but we can learn. The editor
+keeps a set known cursor-movement combos (initialized to the
+predictable defaults), and updates this set when it observes that
+pressing a certain key had (only) the effect of moving the cursor.
+This, of course, doesn't work if the first time the key is used was
+for extending an inverted selection, but it works most of the
+time.

+

+

+  
Intelligent Updating

+
+
One thing that always comes up when you have a complicated internal
+state that's reflected in some user-visible external representation
+(in this case, the displayed code and the textarea's content) is
+keeping the two in sync. The naive way is to just update the display
+every time you change your state, but this is not only error prone
+(you'll forget), it also easily leads to duplicate work on big,
+composite operations. Then you start passing around flags indicating
+whether the display should be updated in an attempt to be efficient
+again and, well, at that point you might as well give up completely.

+
+
I did go down that road, but then switched to a much simpler model:
+simply keep track of all the things that have been changed during an
+action, and then, only at the end, use this information to update the
+user-visible display.

+
+
CodeMirror uses a concept of operations, which start by
+calling a specific set-up function that clears the state and end by
+calling another function that reads this state and does the required
+updating. Most event handlers, and all the user-visible methods that
+change state are wrapped like this. There's a method
+called operation that accepts a function, and returns
+another function that wraps the given function as an operation.

+
+
It's trivial to extend this (as CodeMirror does) to detect nesting,
+and, when an operation is started inside an operation, simply
+increment the nesting count, and only do the updating when this count
+reaches zero again.

+
+
If we have a set of changed ranges and know the currently shown
+range, we can (with some awkward code to deal with the fact that
+changes can add and remove lines, so we're dealing with a changing
+coordinate system) construct a map of the ranges that were left
+intact. We can then compare this map with the part of the document
+that's currently visible (based on scroll offset and editor height) to
+determine whether something needs to be updated.

+
+
CodeMirror uses two update algorithms—a full refresh, where it just
+discards the whole part of the DOM that contains the edited text and
+rebuilds it, and a patch algorithm, where it uses the information
+about changed and intact ranges to update only the out-of-date parts
+of the DOM. When more than 30 percent (which is the current heuristic,
+might change) of the lines need to be updated, the full refresh is
+chosen (since it's faster to do than painstakingly finding and
+updating all the changed lines), in the other case it does the
+patching (so that, if you scroll a line or select another character,
+the whole screen doesn't have to be
+re-rendered). [the full-refresh
+algorithm was dropped, it wasn't really faster than the patching
+one]

+
+
All updating uses innerHTML rather than direct DOM
+manipulation, since that still seems to be by far the fastest way to
+build documents. There's a per-line function that combines the
+highlighting, marking, and
+selection info for that line into a snippet of HTML. The patch updater
+uses this to reset individual lines, the refresh updater builds an
+HTML chunk for the whole visible document at once, and then uses a
+single innerHTML update to do the refresh.

+

+

+  
Parsers can be Simple

+
+
When I wrote CodeMirror 1, I
+thought interruptable
+parsers were a hugely scary and complicated thing, and I used a
+bunch of heavyweight abstractions to keep this supposed complexity
+under control: parsers
+were iterators
+that consumed input from another iterator, and used funny
+closure-resetting tricks to copy and resume themselves.

+
+
This made for a rather nice system, in that parsers formed strictly
+separate modules, and could be composed in predictable ways.
+Unfortunately, it was quite slow (stacking three or four iterators on
+top of each other), and extremely intimidating to people not used to a
+functional programming style.

+
+
With a few small changes, however, we can keep all those
+advantages, but simplify the API and make the whole thing less
+indirect and inefficient. CodeMirror
+2's mode API uses explicit state
+objects, and makes the parser/tokenizer a function that simply takes a
+state and a character stream abstraction, advances the stream one
+token, and returns the way the token should be styled. This state may
+be copied, optionally in a mode-defined way, in order to be able to
+continue a parse at a given point. Even someone who's never touched a
+lambda in his life can understand this approach. Additionally, far
+fewer objects are allocated in the course of parsing now.

+
+
The biggest speedup comes from the fact that the parsing no longer
+has to touch the DOM though. In CodeMirror 1, on an older browser, you
+could see the parser work its way through the document,
+managing some twenty lines in each 50-millisecond time slice it got. It
+was reading its input from the DOM, and updating the DOM as it went
+along, which any experienced JavaScript programmer will immediately
+spot as a recipe for slowness. In CodeMirror 2, the parser usually
+finishes the whole document in a single 100-millisecond time slice—it
+manages some 1500 lines during that time on Chrome. All it has to do
+is munge strings, so there is no real reason for it to be slow
+anymore.

+

+

+  
What Gives?

+
+
Given all this, what can you expect from CodeMirror 2?

+
+
    
+
+
  • Small. the base library is
+some 45k when minified
+now, 17k when gzipped. It's smaller than
+its own logo.
    • 
+
+
  • Lightweight. CodeMirror 2 initializes very
+quickly, and does almost no work when it is not focused. This means
+you can treat it almost like a textarea, have multiple instances on a
+page without trouble.
    • 
+
+
  • Huge document support. Since highlighting is
+really fast, and no DOM structure is being built for non-visible
+content, you don't have to worry about locking up your browser when a
+user enters a megabyte-sized document.
    • 
+
+
  • Extended API. Some things kept coming up in the
+mailing list, such as marking pieces of text or lines, which were
+extremely hard to do with CodeMirror 1. The new version has proper
+support for these built in.
    • 
+
+
  • Tab support. Tabs inside editable documents were,
+for some reason, a no-go. At least six different people announced they
+were going to add tab support to CodeMirror 1, none survived (I mean,
+none delivered a working version). CodeMirror 2 no longer removes tabs
+from your document.
    • 
+
+
  • Sane styling. iframe nodes aren't
+really known for respecting document flow. Now that an editor instance
+is a plain div element, it is much easier to size it to
+fit the surrounding elements. You don't even have to make it scroll if
+you do not want to.
    • 
+
+

+
+
On the downside, a CodeMirror 2 instance is not a native
+editable component. Though it does its best to emulate such a
+component as much as possible, there is functionality that browsers
+just do not allow us to hook into. Doing select-all from the context
+menu, for example, is not currently detected by CodeMirror.

+
+
[Updates from November 13th 2011] Recently, I've made
+some changes to the codebase that cause some of the text above to no
+longer be current. I've left the text intact, but added markers at the
+passages that are now inaccurate. The new situation is described
+below.

+

+

+  
Content Representation

+
+
The original implementation of CodeMirror 2 represented the
+document as a flat array of line objects. This worked well—splicing
+arrays will require the part of the array after the splice to be
+moved, but this is basically just a simple memmove of a
+bunch of pointers, so it is cheap even for huge documents.

+
+
However, I recently added line wrapping and code folding (line
+collapsing, basically). Once lines start taking up a non-constant
+amount of vertical space, looking up a line by vertical position
+(which is needed when someone clicks the document, and to determine
+the visible part of the document during scrolling) can only be done
+with a linear scan through the whole array, summing up line heights as
+you go. Seeing how I've been going out of my way to make big documents
+fast, this is not acceptable.

+
+
The new representation is based on a B-tree. The leaves of the tree
+contain arrays of line objects, with a fixed minimum and maximum size,
+and the non-leaf nodes simply hold arrays of child nodes. Each node
+stores both the amount of lines that live below them and the vertical
+space taken up by these lines. This allows the tree to be indexed both
+by line number and by vertical position, and all access has
+logarithmic complexity in relation to the document size.

+
+
I gave line objects and tree nodes parent pointers, to the node
+above them. When a line has to update its height, it can simply walk
+these pointers to the top of the tree, adding or subtracting the
+difference in height from each node it encounters. The parent pointers
+also make it cheaper (in complexity terms, the difference is probably
+tiny in normal-sized documents) to find the current line number when
+given a line object. In the old approach, the whole document array had
+to be searched. Now, we can just walk up the tree and count the sizes
+of the nodes coming before us at each level.

+
+
I chose B-trees, not regular binary trees, mostly because they
+allow for very fast bulk insertions and deletions. When there is a big
+change to a document, it typically involves adding, deleting, or
+replacing a chunk of subsequent lines. In a regular balanced tree, all
+these inserts or deletes would have to be done separately, which could
+be really expensive. In a B-tree, to insert a chunk, you just walk
+down the tree once to find where it should go, insert them all in one
+shot, and then break up the node if needed. This breaking up might
+involve breaking up nodes further up, but only requires a single pass
+back up the tree. For deletion, I'm somewhat lax in keeping things
+balanced—I just collapse nodes into a leaf when their child count goes
+below a given number. This means that there are some weird editing
+patterns that may result in a seriously unbalanced tree, but even such
+an unbalanced tree will perform well, unless you spend a day making
+strangely repeating edits to a really big document.

+

+

+  
Keymaps

+
+
Above, I claimed that directly catching key
+events for things like cursor movement is impractical because it
+requires some browser-specific kludges. I then proceeded to explain
+some awful hacks that were needed to make it
+possible for the selection changes to be detected through the
+textarea. In fact, the second hack is about as bad as the first.

+
+
On top of that, in the presence of user-configurable tab sizes and
+collapsed and wrapped lines, lining up cursor movement in the textarea
+with what's visible on the screen becomes a nightmare. Thus, I've
+decided to move to a model where the textarea's selection is no longer
+depended on.

+
+
So I moved to a model where all cursor movement is handled by my
+own code. This adds support for a goal column, proper interaction of
+cursor movement with collapsed lines, and makes it possible for
+vertical movement to move through wrapped lines properly, instead of
+just treating them like non-wrapped lines.

+
+
The key event handlers now translate the key event into a string,
+something like Ctrl-Home or Shift-Cmd-R, and
+use that string to look up an action to perform. To make keybinding
+customizable, this lookup goes through
+a table, using a scheme that
+allows such tables to be chained together (for example, the default
+Mac bindings fall through to a table named 'emacsy', which defines
+basic Emacs-style bindings like Ctrl-F, and which is also
+used by the custom Emacs bindings).

+
+
A new
+option extraKeys
+allows ad-hoc keybindings to be defined in a much nicer way than what
+was possible with the
+old onKeyEvent
+callback. You simply provide an object mapping key identifiers to
+functions, instead of painstakingly looking at raw key events.

+
+
Built-in commands map to strings, rather than functions, for
+example "goLineUp" is the default action bound to the up
+arrow key. This allows new keymaps to refer to them without
+duplicating any code. New commands can be defined by assigning to
+the CodeMirror.commands object, which maps such commands
+to functions.

+
+
The hidden textarea now only holds the current selection, with no
+extra characters around it. This has a nice advantage: polling for
+input becomes much, much faster. If there's a big selection, this text
+does not have to be read from the textarea every time—when we poll,
+just noticing that something is still selected is enough to tell us
+that no new text was typed.

+
+
The reason that cheap polling is important is that many browsers do
+not fire useful events on IME (input method engine) input, which is
+the thing where people inputting a language like Japanese or Chinese
+use multiple keystrokes to create a character or sequence of
+characters. Most modern browsers fire input when the
+composing is finished, but many don't fire anything when the character
+is updated during composition. So we poll, whenever the
+editor is focused, to provide immediate updates of the display.

+
+

+

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+
+CodeMirror: User Manual
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

+
+

+    

+      User manual and reference guide
+      version 5.25.0
+    

+
+    
CodeMirror is a code-editor component that can be embedded in
+    Web pages. The core library provides only the editor
+    component, no accompanying buttons, auto-completion, or other IDE
+    functionality. It does provide a rich API on top of which such
+    functionality can be straightforwardly implemented. See
+    the addons included in the distribution,
+    and the list
+    of externally hosted addons, for reusable
+    implementations of extra features.

+
+    
CodeMirror works with language-specific modes. Modes are
+    JavaScript programs that help color (and optionally indent) text
+    written in a given language. The distribution comes with a number
+    of modes (see the mode/
+    directory), and it isn't hard to write new
+    ones for other languages.

+

+
+

+    
Basic Usage

+
+    
The easiest way to use CodeMirror is to simply load the script
+    and style sheet found under lib/ in the distribution,
+    plus a mode script from one of the mode/ directories.
+    For example:

+
+    
<script src="lib/codemirror.js"></script>
+<link rel="stylesheet" href="lib/codemirror.css">
+<script src="mode/javascript/javascript.js"></script>

+
+    
(Alternatively, use a module loader. More
+    about that later.)

+
+    
Having done this, an editor instance can be created like
+    this:

+
+    
var myCodeMirror = CodeMirror(document.body);

+
+    
The editor will be appended to the document body, will start
+    empty, and will use the mode that we loaded. To have more control
+    over the new editor, a configuration object can be passed
+    to CodeMirror as a second
+    argument:

+
+    
var myCodeMirror = CodeMirror(document.body, {
+  value: "function myScript(){return 100;}\n",
+  mode:  "javascript"
+});

+
+    
This will initialize the editor with a piece of code already in
+    it, and explicitly tell it to use the JavaScript mode (which is
+    useful when multiple modes are loaded).
+    See below for a full discussion of the
+    configuration options that CodeMirror accepts.

+
+    
In cases where you don't want to append the editor to an
+    element, and need more control over the way it is inserted, the
+    first argument to the CodeMirror function can also
+    be a function that, when given a DOM element, inserts it into the
+    document somewhere. This could be used to, for example, replace a
+    textarea with a real editor:

+
+    
var myCodeMirror = CodeMirror(function(elt) {
+  myTextArea.parentNode.replaceChild(elt, myTextArea);
+}, {value: myTextArea.value});

+
+    
However, for this use case, which is a common way to use
+    CodeMirror, the library provides a much more powerful
+    shortcut:

+
+    
var myCodeMirror = CodeMirror.fromTextArea(myTextArea);

+
+    
This will, among other things, ensure that the textarea's value
+    is updated with the editor's contents when the form (if it is part
+    of a form) is submitted. See the API
+    reference for a full description of this method.

+
+    
Module loaders

+
+    
The files in the CodeMirror distribution contain shims for
+    loading them (and their dependencies) in AMD or CommonJS
+    environments. If the variables exports
+    and module exist and have type object, CommonJS-style
+    require will be used. If not, but there is a
+    function define with an amd property
+    present, AMD-style (RequireJS) will be used.

+
+    
It is possible to
+    use Browserify or similar
+    tools to statically build modules using CodeMirror. Alternatively,
+    use RequireJS to dynamically
+    load dependencies at runtime. Both of these approaches have the
+    advantage that they don't use the global namespace and can, thus,
+    do things like load multiple versions of CodeMirror alongside each
+    other.

+
+    
Here's a simple example of using RequireJS to load CodeMirror:

+
+    
require([
+  "cm/lib/codemirror", "cm/mode/htmlmixed/htmlmixed"
+], function(CodeMirror) {
+  CodeMirror.fromTextArea(document.getElementById("code"), {
+    lineNumbers: true,
+    mode: "htmlmixed"
+  });
+});

+
+    
It will automatically load the modes that the mixed HTML mode
+    depends on (XML, JavaScript, and CSS). Do not use
+    RequireJS' paths option to configure the path to
+    CodeMirror, since it will break loading submodules through
+    relative paths. Use
+    the packages
+    configuration option instead, as in:

+
+    
require.config({
+  packages: [{
+    name: "codemirror",
+    location: "../path/to/codemirror",
+    main: "lib/codemirror"
+  }]
+});

+
+

+
+

+    
Configuration

+
+    
Both the CodeMirror
+    function and its fromTextArea method take as second
+    (optional) argument an object containing configuration options.
+    Any option not supplied like this will be taken
+    from CodeMirror.defaults, an
+    object containing the default options. You can update this object
+    to change the defaults on your page.

+
+    
Options are not checked in any way, so setting bogus option
+    values is bound to lead to odd errors.

+
+    
These are the supported options:

+
+    

+      
value: string|CodeMirror.Doc

+      
The starting value of the editor. Can be a string, or
+      a document object.

+
+      
mode: string|object

+      
The mode to use. When not given, this will default to the
+      first mode that was loaded. It may be a string, which either
+      simply names the mode or is
+      a MIME type
+      associated with the mode. Alternatively, it may be an object
+      containing configuration options for the mode, with
+      a name property that names the mode (for
+      example {name: "javascript", json: true}). The demo
+      pages for each mode contain information about what configuration
+      parameters the mode supports. You can ask CodeMirror which modes
+      and MIME types have been defined by inspecting
+      the CodeMirror.modes
+      and CodeMirror.mimeModes objects. The first maps
+      mode names to their constructors, and the second maps MIME types
+      to mode specs.

+
+      
lineSeparator: string|null

+      
Explicitly set the line separator for the editor. By default
+      (value null), the document will be split on CRLFs
+      as well as lone CRs and LFs, and a single LF will be used as
+      line separator in all output (such
+      as getValue). When a
+      specific string is given, lines will only be split on that
+      string, and output will, by default, use that same
+      separator.

+
+      
theme: string

+      
The theme to style the editor with. You must make sure the
+      CSS file defining the corresponding .cm-s-[name]
+      styles is loaded (see
+      the theme directory in the
+      distribution). The default is "default", for which
+      colors are included in codemirror.css. It is
+      possible to use multiple theming classes at once—for
+      example "foo bar" will assign both
+      the cm-s-foo and the cm-s-bar classes
+      to the editor.

+
+      
indentUnit: integer

+      
How many spaces a block (whatever that means in the edited
+      language) should be indented. The default is 2.

+
+      
smartIndent: boolean

+      
Whether to use the context-sensitive indentation that the
+      mode provides (or just indent the same as the line before).
+      Defaults to true.

+
+      
tabSize: integer

+      
The width of a tab character. Defaults to 4.

+
+      
indentWithTabs: boolean

+      
Whether, when indenting, the first N*tabSize
+      spaces should be replaced by N tabs. Default is false.

+
+      
electricChars: boolean

+      
Configures whether the editor should re-indent the current
+      line when a character is typed that might change its proper
+      indentation (only works if the mode supports indentation).
+      Default is true.

+
+      
specialChars: RegExp

+      
A regular expression used to determine which characters
+      should be replaced by a
+      special placeholder.
+      Mostly useful for non-printing special characters. The default
+      is /[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b-\u200f\u2028\u2029\ufeff]/.

+      
specialCharPlaceholder: function(char) → Element

+      
A function that, given a special character identified by
+      the specialChars
+      option, produces a DOM node that is used to represent the
+      character. By default, a red dot (•)
+      is shown, with a title tooltip to indicate the character code.

+
+      
rtlMoveVisually: boolean

+      
Determines whether horizontal cursor movement through
+      right-to-left (Arabic, Hebrew) text is visual (pressing the left
+      arrow moves the cursor left) or logical (pressing the left arrow
+      moves to the next lower index in the string, which is visually
+      right in right-to-left text). The default is false
+      on Windows, and true on other platforms.

+
+      
keyMap: string

+      
Configures the key map to use. The default
+      is "default", which is the only key map defined
+      in codemirror.js itself. Extra key maps are found in
+      the key map directory. See
+      the section on key maps for more
+      information.

+
+      
extraKeys: object

+      
Can be used to specify extra key bindings for the editor,
+      alongside the ones defined
+      by keyMap. Should be
+      either null, or a valid key map value.

+
+      
lineWrapping: boolean

+      
Whether CodeMirror should scroll or wrap for long lines.
+      Defaults to false (scroll).

+
+      
lineNumbers: boolean

+      
Whether to show line numbers to the left of the editor.

+
+      
firstLineNumber: integer

+      
At which number to start counting lines. Default is 1.

+
+      
lineNumberFormatter: function(line: integer) → string

+      
A function used to format line numbers. The function is
+      passed the line number, and should return a string that will be
+      shown in the gutter.

+
+      
gutters: array<string>

+      
Can be used to add extra gutters (beyond or instead of the
+      line number gutter). Should be an array of CSS class names, each
+      of which defines a width (and optionally a
+      background), and which will be used to draw the background of
+      the gutters. May include
+      the CodeMirror-linenumbers class, in order to
+      explicitly set the position of the line number gutter (it will
+      default to be to the right of all other gutters). These class
+      names are the keys passed
+      to setGutterMarker.

+
+      
fixedGutter: boolean

+      
Determines whether the gutter scrolls along with the content
+      horizontally (false) or whether it stays fixed during horizontal
+      scrolling (true, the default).

+
+      
scrollbarStyle: string

+      
Chooses a scrollbar implementation. The default
+      is "native", showing native scrollbars. The core
+      library also provides the "null" style, which
+      completely hides the
+      scrollbars. Addons can
+      implement additional scrollbar models.

+
+      
coverGutterNextToScrollbar: boolean

+      
When fixedGutter
+      is on, and there is a horizontal scrollbar, by default the
+      gutter will be visible to the left of this scrollbar. If this
+      option is set to true, it will be covered by an element with
+      class CodeMirror-gutter-filler.

+
+      
inputStyle: string

+      
Selects the way CodeMirror handles input and focus. The core
+      library defines the "textarea"
+      and "contenteditable" input models. On mobile
+      browsers, the default is "contenteditable". On
+      desktop browsers, the default is "textarea".
+      Support for IME and screen readers is better in
+      the "contenteditable" model. The intention is to
+      make it the default on modern desktop browsers in the
+      future.

+
+      
readOnly: boolean|string

+      
This disables editing of the editor content by the user. If
+      the special value "nocursor" is given (instead of
+      simply true), focusing of the editor is also
+      disallowed.

+
+      
showCursorWhenSelecting: boolean

+      
Whether the cursor should be drawn when a selection is
+      active. Defaults to false.

+
+      
lineWiseCopyCut: boolean

+      
When enabled, which is the default, doing copy or cut when
+      there is no selection will copy or cut the whole lines that have
+      cursors on them.

+
+      
undoDepth: integer

+      
The maximum number of undo levels that the editor stores.
+      Note that this includes selection change events. Defaults to
+      200.

+
+      
historyEventDelay: integer

+      
The period of inactivity (in milliseconds) that will cause a
+      new history event to be started when typing or deleting.
+      Defaults to 1250.

+
+      
tabindex: integer

+      
The tab
+      index to assign to the editor. If not given, no tab index
+      will be assigned.

+
+      
autofocus: boolean

+      
Can be used to make CodeMirror focus itself on
+      initialization. Defaults to off.
+      When fromTextArea is
+      used, and no explicit value is given for this option, it will be
+      set to true when either the source textarea is focused, or it
+      has an autofocus attribute and no other element is
+      focused.

+    

+
+    
Below this a few more specialized, low-level options are
+    listed. These are only useful in very specific situations, you
+    might want to skip them the first time you read this manual.

+
+    

+      
dragDrop: boolean

+      
Controls whether drag-and-drop is enabled. On by default.

+
+      
allowDropFileTypes: array<string>

+      
When set (default is null) only files whose
+      type is in the array can be dropped into the editor. The strings
+      should be MIME types, and will be checked against
+      the type
+      of the File object as reported by the browser.

+
+      
cursorBlinkRate: number

+      
Half-period in milliseconds used for cursor blinking. The default blink
+      rate is 530ms. By setting this to zero, blinking can be disabled. A
+      negative value hides the cursor entirely.

+
+      
cursorScrollMargin: number

+      
How much extra space to always keep above and below the
+      cursor when approaching the top or bottom of the visible view in
+      a scrollable document. Default is 0.

+
+      
cursorHeight: number

+      
Determines the height of the cursor. Default is 1, meaning
+      it spans the whole height of the line. For some fonts (and by
+      some tastes) a smaller height (for example 0.85),
+      which causes the cursor to not reach all the way to the bottom
+      of the line, looks better

+
+      
resetSelectionOnContextMenu: boolean

+      
Controls whether, when the context menu is opened with a
+      click outside of the current selection, the cursor is moved to
+      the point of the click. Defaults to true.

+
+      
workTime, workDelay: number

+      
Highlighting is done by a pseudo background-thread that will
+      work for workTime milliseconds, and then use
+      timeout to sleep for workDelay milliseconds. The
+      defaults are 200 and 300, you can change these options to make
+      the highlighting more or less aggressive.

+
+      
pollInterval: number

+      
Indicates how quickly CodeMirror should poll its input
+      textarea for changes (when focused). Most input is captured by
+      events, but some things, like IME input on some browsers, don't
+      generate events that allow CodeMirror to properly detect it.
+      Thus, it polls. Default is 100 milliseconds.

+
+      
flattenSpans: boolean

+      
By default, CodeMirror will combine adjacent tokens into a
+      single span if they have the same class. This will result in a
+      simpler DOM tree, and thus perform better. With some kinds of
+      styling (such as rounded corners), this will change the way the
+      document looks. You can set this option to false to disable this
+      behavior.

+
+      
addModeClass: boolean

+      
When enabled (off by default), an extra CSS class will be
+      added to each token, indicating the
+      (inner) mode that produced it, prefixed
+      with "cm-m-". For example, tokens from the XML mode
+      will get the cm-m-xml class.

+
+      
maxHighlightLength: number

+      
When highlighting long lines, in order to stay responsive,
+      the editor will give up and simply style the rest of the line as
+      plain text when it reaches a certain position. The default is
+      10 000. You can set this to Infinity to turn off
+      this behavior.

+
+      
viewportMargin: integer

+      
Specifies the amount of lines that are rendered above and
+      below the part of the document that's currently scrolled into
+      view. This affects the amount of updates needed when scrolling,
+      and the amount of work that such an update does. You should
+      usually leave it at its default, 10. Can be set
+      to Infinity to make sure the whole document is
+      always rendered, and thus the browser's text search works on it.
+      This will have bad effects on performance of big
+      documents.

+    

+

+
+

+    
Events

+
+    
Various CodeMirror-related objects emit events, which allow
+    client code to react to various situations. Handlers for such
+    events can be registered with the on
+    and off methods on the objects
+    that the event fires on. To fire your own events,
+    use CodeMirror.signal(target, name, args...),
+    where target is a non-DOM-node object.

+
+    
An editor instance fires the following events.
+    The instance argument always refers to the editor
+    itself.

+
+    

+      
"change" (instance: CodeMirror, changeObj: object)

+      
Fires every time the content of the editor is changed.
+      The changeObj is a {from, to, text, removed,
+      origin} object containing information about the changes
+      that occurred as second argument. from
+      and to are the positions (in the pre-change
+      coordinate system) where the change started and ended (for
+      example, it might be {ch:0, line:18} if the
+      position is at the beginning of line #19). text is
+      an array of strings representing the text that replaced the
+      changed range (split by line). removed is the text
+      that used to be between from and to,
+      which is overwritten by this change. This event is
+      fired before the end of
+      an operation, before the DOM updates
+      happen.

+
+      
"changes" (instance: CodeMirror, changes: array<object>)

+      
Like the "change"
+      event, but batched per operation,
+      passing an array containing all the changes that happened in the
+      operation. This event is fired after the operation finished, and
+      display changes it makes will trigger a new operation.

+
+      
"beforeChange" (instance: CodeMirror, changeObj: object)

+      
This event is fired before a change is applied, and its
+      handler may choose to modify or cancel the change.
+      The changeObj object
+      has from, to, and text
+      properties, as with
+      the "change" event. It
+      also has a cancel() method, which can be called to
+      cancel the change, and, if the change isn't
+      coming from an undo or redo event, an update(from, to,
+      text) method, which may be used to modify the change.
+      Undo or redo changes can't be modified, because they hold some
+      metainformation for restoring old marked ranges that is only
+      valid for that specific change. All three arguments
+      to update are optional, and can be left off to
+      leave the existing value for that field
+      intact. Note: you may not do anything from
+      a "beforeChange" handler that would cause changes
+      to the document or its visualization. Doing so will, since this
+      handler is called directly from the bowels of the CodeMirror
+      implementation, probably cause the editor to become
+      corrupted.

+
+      
"cursorActivity" (instance: CodeMirror)

+      
Will be fired when the cursor or selection moves, or any
+      change is made to the editor content.

+
+      
"keyHandled" (instance: CodeMirror, name: string, event: Event)

+      
Fired after a key is handled through a
+      key map. name is the name of the handled key (for
+      example "Ctrl-X" or "'q'"),
+      and event is the DOM keydown
+      or keypress event.

+
+      
"inputRead" (instance: CodeMirror, changeObj: object)

+      
Fired whenever new input is read from the hidden textarea
+      (typed or pasted by the user).

+
+      
"electricInput" (instance: CodeMirror, line: integer)

+      
Fired if text input matched the
+      mode's electric patterns,
+      and this caused the line's indentation to change.

+
+      
"beforeSelectionChange" (instance: CodeMirror, obj: {ranges, origin, update})

+      
This event is fired before the selection is moved. Its
+      handler may inspect the set of selection ranges, present as an
+      array of {anchor, head} objects in
+      the ranges property of the obj
+      argument, and optionally change them by calling
+      the update method on this object, passing an array
+      of ranges in the same format. The object also contains
+      an origin property holding the origin string passed
+      to the selection-changing method, if any. Handlers for this
+      event have the same restriction
+      as "beforeChange"
+      handlers — they should not do anything to directly update the
+      state of the editor.

+
+      
"viewportChange" (instance: CodeMirror, from: number, to: number)

+      
Fires whenever the view port of
+      the editor changes (due to scrolling, editing, or any other
+      factor). The from and to arguments
+      give the new start and end of the viewport.

+
+      
"swapDoc" (instance: CodeMirror, oldDoc: Doc)

+      
This is signalled when the editor's document is replaced
+      using the swapDoc
+      method.

+
+      
"gutterClick" (instance: CodeMirror, line: integer, gutter: string, clickEvent: Event)

+      
Fires when the editor gutter (the line-number area) is
+      clicked. Will pass the editor instance as first argument, the
+      (zero-based) number of the line that was clicked as second
+      argument, the CSS class of the gutter that was clicked as third
+      argument, and the raw mousedown event object as
+      fourth argument.

+
+      
"gutterContextMenu" (instance: CodeMirror, line: integer, gutter: string, contextMenu: Event: Event)

+      
Fires when the editor gutter (the line-number area)
+      receives a contextmenu event. Will pass the editor
+      instance as first argument, the (zero-based) number of the line
+      that was clicked as second argument, the CSS class of the
+      gutter that was clicked as third argument, and the raw
+      contextmenu mouse event object as fourth argument.
+      You can preventDefault the event, to signal that
+      CodeMirror should do no further handling.

+
+      
"focus" (instance: CodeMirror, event: Event)

+      
Fires whenever the editor is focused.

+
+      
"blur" (instance: CodeMirror, event: Event)

+      
Fires whenever the editor is unfocused.

+
+      
"scroll" (instance: CodeMirror)

+      
Fires when the editor is scrolled.

+
+      
"refresh" (instance: CodeMirror)

+      
Fires when the editor is refreshed
+      or resized. Mostly useful to invalidate
+      cached values that depend on the editor or character size.

+
+      
"optionChange" (instance: CodeMirror, option: string)

+      
Dispatched every time an option is changed with setOption.

+
+      
"scrollCursorIntoView" (instance: CodeMirror, event: Event)

+      
Fires when the editor tries to scroll its cursor into view.
+      Can be hooked into to take care of additional scrollable
+      containers around the editor. When the event object has
+      its preventDefault method called, CodeMirror will
+      not itself try to scroll the window.

+
+      
"update" (instance: CodeMirror)

+      
Will be fired whenever CodeMirror updates its DOM display.

+
+      
"renderLine" (instance: CodeMirror, line: LineHandle, element: Element)

+      
Fired whenever a line is (re-)rendered to the DOM. Fired
+      right after the DOM element is built, before it is
+      added to the document. The handler may mess with the style of
+      the resulting element, or add event handlers, but
+      should not try to change the state of the editor.

+
+      
"mousedown",
+      "dblclick", "touchstart", "contextmenu",
+      "keydown", "keypress",
+      "keyup", "cut", "copy", "paste",
+      "dragstart", "dragenter",
+      "dragover", "dragleave",
+      "drop"
+      (instance: CodeMirror, event: Event)

+      
Fired when CodeMirror is handling a DOM event of this type.
+      You can preventDefault the event, or give it a
+      truthy codemirrorIgnore property, to signal that
+      CodeMirror should do no further handling.

+    

+
+    
Document objects (instances
+    of CodeMirror.Doc) emit the
+    following events:

+
+    

+      
"change" (doc: CodeMirror.Doc, changeObj: object)

+      
Fired whenever a change occurs to the
+      document. changeObj has a similar type as the
+      object passed to the
+      editor's "change"
+      event.

+
+      
"beforeChange" (doc: CodeMirror.Doc, change: object)

+      
See the description of the
+      same event on editor instances.

+
+      
"cursorActivity" (doc: CodeMirror.Doc)

+      
Fired whenever the cursor or selection in this document
+      changes.

+
+      
"beforeSelectionChange" (doc: CodeMirror.Doc, selection: {head, anchor})

+      
Equivalent to
+      the event by the same
+      name as fired on editor instances.

+    

+
+    
Line handles (as returned by, for
+    example, getLineHandle)
+    support these events:

+
+    

+      
"delete" ()

+      
Will be fired when the line object is deleted. A line object
+      is associated with the start of the line. Mostly useful
+      when you need to find out when your gutter
+      markers on a given line are removed.

+      
"change" (line: LineHandle, changeObj: object)

+      
Fires when the line's text content is changed in any way
+      (but the line is not deleted outright). The change
+      object is similar to the one passed
+      to change event on the editor
+      object.

+    

+
+    
Marked range handles (CodeMirror.TextMarker), as returned
+    by markText
+    and setBookmark, emit the
+    following events:

+
+    

+      
"beforeCursorEnter" ()

+      
Fired when the cursor enters the marked range. From this
+      event handler, the editor state may be inspected
+      but not modified, with the exception that the range on
+      which the event fires may be cleared.

+      
"clear" (from: {line, ch}, to: {line, ch})

+      
Fired when the range is cleared, either through cursor
+      movement in combination
+      with clearOnEnter
+      or through a call to its clear() method. Will only
+      be fired once per handle. Note that deleting the range through
+      text editing does not fire this event, because an undo action
+      might bring the range back into existence. from
+      and to give the part of the document that the range
+      spanned when it was cleared.

+      
"hide" ()

+      
Fired when the last part of the marker is removed from the
+      document by editing operations.

+      
"unhide" ()

+      
Fired when, after the marker was removed by editing, a undo
+      operation brought the marker back.

+    

+
+    
Line widgets (CodeMirror.LineWidget), returned
+    by addLineWidget, fire
+    these events:

+
+    

+      
"redraw" ()

+      
Fired whenever the editor re-adds the widget to the DOM.
+      This will happen once right after the widget is added (if it is
+      scrolled into view), and then again whenever it is scrolled out
+      of view and back in again, or when changes to the editor options
+      or the line the widget is on require the widget to be
+      redrawn.

+    

+

+
+

+    
Key Maps

+
+    
Key maps are ways to associate keys with functionality. A key map
+    is an object mapping strings that identify the keys to functions
+    that implement their functionality.

+
+    
The CodeMirror distributions comes
+    with Emacs, Vim,
+    and Sublime Text-style keymaps.

+
+    
Keys are identified either by name or by character.
+    The CodeMirror.keyNames object defines names for
+    common keys and associates them with their key codes. Examples of
+    names defined here are Enter, F5,
+    and Q. These can be prefixed
+    with Shift-, Cmd-, Ctrl-,
+    and Alt- to specify a modifier. So for
+    example, Shift-Ctrl-Space would be a valid key
+    identifier.

+
+    
Common example: map the Tab key to insert spaces instead of a tab
+    character.

+
+    
+editor.setOption("extraKeys", {
+  Tab: function(cm) {
+    var spaces = Array(cm.getOption("indentUnit") + 1).join(" ");
+    cm.replaceSelection(spaces);
+  }
+});

+
+    
Alternatively, a character can be specified directly by
+    surrounding it in single quotes, for example '$'
+    or 'q'. Due to limitations in the way browsers fire
+    key events, these may not be prefixed with modifiers.

+
+    
Multi-stroke key bindings can be specified
+    by separating the key names by spaces in the property name, for
+    example Ctrl-X Ctrl-V. When a map contains
+    multi-stoke bindings or keys with modifiers that are not specified
+    in the default order (Shift-Cmd-Ctrl-Alt), you must
+    call CodeMirror.normalizeKeyMap on it before it can
+    be used. This function takes a keymap and modifies it to normalize
+    modifier order and properly recognize multi-stroke bindings. It
+    will return the keymap itself.

+
+    
The CodeMirror.keyMap object associates key maps
+    with names. User code and key map definitions can assign extra
+    properties to this object. Anywhere where a key map is expected, a
+    string can be given, which will be looked up in this object. It
+    also contains the "default" key map holding the
+    default bindings.

+
+    
The values of properties in key maps can be either functions of
+    a single argument (the CodeMirror instance), strings, or
+    false. Strings refer
+    to commands, which are described below. If
+    the property is set to false, CodeMirror leaves
+    handling of the key up to the browser. A key handler function may
+    return CodeMirror.Pass to indicate that it has
+    decided not to handle the key, and other handlers (or the default
+    behavior) should be given a turn.

+
+    
Keys mapped to command names that start with the
+    characters "go" or to functions that have a
+    truthy motion property (which should be used for
+    cursor-movement actions) will be fired even when an
+    extra Shift modifier is present (i.e. "Up":
+    "goLineUp" matches both up and shift-up). This is used to
+    easily implement shift-selection.

+
+    
Key maps can defer to each other by defining
+    a fallthrough property. This indicates that when a
+    key is not found in the map itself, one or more other maps should
+    be searched. It can hold either a single key map or an array of
+    key maps.

+
+    
When a key map needs to set something up when it becomes
+    active, or tear something down when deactivated, it can
+    contain attach and/or detach properties,
+    which should hold functions that take the editor instance and the
+    next or previous keymap. Note that this only works for the
+    top-level keymap, not for fallthrough
+    maps or maps added
+    with extraKeys
+    or addKeyMap.

+

+
+

+    
Commands

+
+    
Commands are parameter-less actions that can be performed on an
+    editor. Their main use is for key bindings. Commands are defined by
+    adding properties to the CodeMirror.commands object.
+    A number of common commands are defined by the library itself,
+    most of them used by the default key bindings. The value of a
+    command property must be a function of one argument (an editor
+    instance).

+
+    
Some of the commands below are referenced in the default
+    key map, but not defined by the core library. These are intended to
+    be defined by user code or addons.

+
+    
Commands can also be run with
+    the execCommand
+    method.

+
+    

+      
selectAllCtrl-A (PC), Cmd-A (Mac)

+      
Select the whole content of the editor.

+
+      
singleSelectionEsc

+      
When multiple selections are present, this deselects all but
+      the primary selection.

+
+      
killLineCtrl-K (Mac)

+      
Emacs-style line killing. Deletes the part of the line after
+      the cursor. If that consists only of whitespace, the newline at
+      the end of the line is also deleted.

+
+      
deleteLineCtrl-D (PC), Cmd-D (Mac)

+      
Deletes the whole line under the cursor, including newline at the end.

+
+      
delLineLeft

+      
Delete the part of the line before the cursor.

+
+      
delWrappedLineLeftCmd-Backspace (Mac)

+      
Delete the part of the line from the left side of the visual line the cursor is on to the cursor.

+
+      
delWrappedLineRightCmd-Delete (Mac)

+      
Delete the part of the line from the cursor to the right side of the visual line the cursor is on.

+
+      
undoCtrl-Z (PC), Cmd-Z (Mac)

+      
Undo the last change.

+
+      
redoCtrl-Y (PC), Shift-Cmd-Z (Mac), Cmd-Y (Mac)

+      
Redo the last undone change.

+
+      
undoSelectionCtrl-U (PC), Cmd-U (Mac)

+      
Undo the last change to the selection, or if there are no
+      selection-only changes at the top of the history, undo the last
+      change.

+
+      
redoSelectionAlt-U (PC), Shift-Cmd-U (Mac)

+      
Redo the last change to the selection, or the last text change if
+      no selection changes remain.

+
+      
goDocStartCtrl-Home (PC), Cmd-Up (Mac), Cmd-Home (Mac)

+      
Move the cursor to the start of the document.

+
+      
goDocEndCtrl-End (PC), Cmd-End (Mac), Cmd-Down (Mac)

+      
Move the cursor to the end of the document.

+
+      
goLineStartAlt-Left (PC), Ctrl-A (Mac)

+      
Move the cursor to the start of the line.

+
+      
goLineStartSmartHome

+      
Move to the start of the text on the line, or if we are
+      already there, to the actual start of the line (including
+      whitespace).

+
+      
goLineEndAlt-Right (PC), Ctrl-E (Mac)

+      
Move the cursor to the end of the line.

+
+      
goLineRightCmd-Right (Mac)

+      
Move the cursor to the right side of the visual line it is on.

+
+      
goLineLeftCmd-Left (Mac)

+      
Move the cursor to the left side of the visual line it is on. If
+      this line is wrapped, that may not be the start of the line.

+
+      
goLineLeftSmart

+      
Move the cursor to the left side of the visual line it is
+      on. If that takes it to the start of the line, behave
+      like goLineStartSmart.

+
+      
goLineUpUp, Ctrl-P (Mac)

+      
Move the cursor up one line.

+
+      
goLineDownDown, Ctrl-N (Mac)

+      
Move down one line.

+
+      
goPageUpPageUp, Shift-Ctrl-V (Mac)

+      
Move the cursor up one screen, and scroll up by the same distance.

+
+      
goPageDownPageDown, Ctrl-V (Mac)

+      
Move the cursor down one screen, and scroll down by the same distance.

+
+      
goCharLeftLeft, Ctrl-B (Mac)

+      
Move the cursor one character left, going to the previous line
+      when hitting the start of line.

+
+      
goCharRightRight, Ctrl-F (Mac)

+      
Move the cursor one character right, going to the next line
+      when hitting the end of line.

+
+      
goColumnLeft

+      
Move the cursor one character left, but don't cross line boundaries.

+
+      
goColumnRight

+      
Move the cursor one character right, don't cross line boundaries.

+
+      
goWordLeftAlt-B (Mac)

+      
Move the cursor to the start of the previous word.

+
+      
goWordRightAlt-F (Mac)

+      
Move the cursor to the end of the next word.

+
+      
goGroupLeftCtrl-Left (PC), Alt-Left (Mac)

+      
Move to the left of the group before the cursor. A group is
+      a stretch of word characters, a stretch of punctuation
+      characters, a newline, or a stretch of more than one
+      whitespace character.

+
+      
goGroupRightCtrl-Right (PC), Alt-Right (Mac)

+      
Move to the right of the group after the cursor
+      (see above).

+
+      
delCharBeforeShift-Backspace, Ctrl-H (Mac)

+      
Delete the character before the cursor.

+
+      
delCharAfterDelete, Ctrl-D (Mac)

+      
Delete the character after the cursor.

+
+      
delWordBeforeAlt-Backspace (Mac)

+      
Delete up to the start of the word before the cursor.

+
+      
delWordAfterAlt-D (Mac)

+      
Delete up to the end of the word after the cursor.

+
+      
delGroupBeforeCtrl-Backspace (PC), Alt-Backspace (Mac)

+      
Delete to the left of the group before the cursor.

+
+      
delGroupAfterCtrl-Delete (PC), Ctrl-Alt-Backspace (Mac), Alt-Delete (Mac)

+      
Delete to the start of the group after the cursor.

+
+      
indentAutoShift-Tab

+      
Auto-indent the current line or selection.

+
+      
indentMoreCtrl-] (PC), Cmd-] (Mac)

+      
Indent the current line or selection by one indent unit.

+
+      
indentLessCtrl-[ (PC), Cmd-[ (Mac)

+      
Dedent the current line or selection by one indent unit.

+
+      
insertTab

+      
Insert a tab character at the cursor.

+
+      
insertSoftTab

+      
Insert the amount of spaces that match the width a tab at
+      the cursor position would have.

+
+      
defaultTabTab

+      
If something is selected, indent it by
+      one indent unit. If nothing is
+      selected, insert a tab character.

+
+      
transposeCharsCtrl-T (Mac)

+      
Swap the characters before and after the cursor.

+
+      
newlineAndIndentEnter

+      
Insert a newline and auto-indent the new line.

+
+      
toggleOverwriteInsert

+      
Flip the overwrite flag.

+
+      
saveCtrl-S (PC), Cmd-S (Mac)

+      
Not defined by the core library, only referred to in
+      key maps. Intended to provide an easy way for user code to define
+      a save command.

+
+      
findCtrl-F (PC), Cmd-F (Mac)

+      
findNextCtrl-G (PC), Cmd-G (Mac)

+      
findPrevShift-Ctrl-G (PC), Shift-Cmd-G (Mac)

+      
replaceShift-Ctrl-F (PC), Cmd-Alt-F (Mac)

+      
replaceAllShift-Ctrl-R (PC), Shift-Cmd-Alt-F (Mac)

+      
Not defined by the core library, but defined in
+      the search addon (or custom client
+      addons).

+
+    

+
+

+
+

+    
Customized Styling

+
+    
Up to a certain extent, CodeMirror's look can be changed by
+    modifying style sheet files. The style sheets supplied by modes
+    simply provide the colors for that mode, and can be adapted in a
+    very straightforward way. To style the editor itself, it is
+    possible to alter or override the styles defined
+    in codemirror.css.

+
+    
Some care must be taken there, since a lot of the rules in this
+    file are necessary to have CodeMirror function properly. Adjusting
+    colors should be safe, of course, and with some care a lot of
+    other things can be changed as well. The CSS classes defined in
+    this file serve the following roles:

+
+    

+      
CodeMirror

+      
The outer element of the editor. This should be used for the
+      editor width, height, borders and positioning. Can also be used
+      to set styles that should hold for everything inside the editor
+      (such as font and font size), or to set a background. Setting
+      this class' height style to auto will
+      make the editor resize to fit its
+      content (it is recommended to also set
+      the viewportMargin
+      option to Infinity when doing this.

+
+      
CodeMirror-focused

+      
Whenever the editor is focused, the top element gets this
+      class. This is used to hide the cursor and give the selection a
+      different color when the editor is not focused.

+
+      
CodeMirror-gutters

+      
This is the backdrop for all gutters. Use it to set the
+      default gutter background color, and optionally add a border on
+      the right of the gutters.

+
+      
CodeMirror-linenumbers

+      
Use this for giving a background or width to the line number
+      gutter.

+
+      
CodeMirror-linenumber

+      
Used to style the actual individual line numbers. These
+      won't be children of the CodeMirror-linenumbers
+      (plural) element, but rather will be absolutely positioned to
+      overlay it. Use this to set alignment and text properties for
+      the line numbers.

+
+      
CodeMirror-lines

+      
The visible lines. This is where you specify vertical
+      padding for the editor content.

+
+      
CodeMirror-cursor

+      
The cursor is a block element that is absolutely positioned.
+      You can make it look whichever way you want.

+
+      
CodeMirror-selected

+      
The selection is represented by span elements
+      with this class.

+
+      
CodeMirror-matchingbracket,
+        CodeMirror-nonmatchingbracket

+      
These are used to style matched (or unmatched) brackets.

+    

+
+    
If your page's style sheets do funky things to
+    all div or pre elements (you probably
+    shouldn't do that), you'll have to define rules to cancel these
+    effects out again for elements under the CodeMirror
+    class.

+
+    
Themes are also simply CSS files, which define colors for
+    various syntactic elements. See the files in
+    the theme directory.

+

+
+

+    
Programming API

+
+    
A lot of CodeMirror features are only available through its
+    API. Thus, you need to write code (or
+    use addons) if you want to expose them to
+    your users.

+
+    
Whenever points in the document are represented, the API uses
+    objects with line and ch properties.
+    Both are zero-based. CodeMirror makes sure to 'clip' any positions
+    passed by client code so that they fit inside the document, so you
+    shouldn't worry too much about sanitizing your coordinates. If you
+    give ch a value of null, or don't
+    specify it, it will be replaced with the length of the specified
+    line. Such positions may also have a sticky property
+    holding "before" or "after", whether the
+    position is associated with the character before or after it. This
+    influences, for example, where the cursor is drawn on a
+    line-break or bidi-direction boundary.

+
+    
Methods prefixed with doc. can, unless otherwise
+    specified, be called both on CodeMirror (editor)
+    instances and CodeMirror.Doc instances. Methods
+    prefixed with cm. are only available
+    on CodeMirror instances.

+
+    
Constructor

+
+    
Constructing an editor instance is done with
+    the CodeMirror(place: Element|fn(Element),
+    ?option: object) constructor. If the place
+    argument is a DOM element, the editor will be appended to it. If
+    it is a function, it will be called, and is expected to place the
+    editor into the document. options may be an element
+    mapping option names to values. The options
+    that it doesn't explicitly specify (or all options, if it is not
+    passed) will be taken
+    from CodeMirror.defaults.

+
+    
Note that the options object passed to the constructor will be
+    mutated when the instance's options
+    are changed, so you shouldn't share such
+    objects between instances.

+
+    
See CodeMirror.fromTextArea
+    for another way to construct an editor instance.

+
+    
Content manipulation methods

+
+    

+      
doc.getValue(?separator: string) → string

+      
Get the current editor content. You can pass it an optional
+      argument to specify the string to be used to separate lines
+      (defaults to "\n").

+      
doc.setValue(content: string)

+      
Set the editor content.

+
+      
doc.getRange(from: {line, ch}, to: {line, ch}, ?separator: string) → string

+      
Get the text between the given points in the editor, which
+      should be {line, ch} objects. An optional third
+      argument can be given to indicate the line separator string to
+      use (defaults to "\n").

+      
doc.replaceRange(replacement: string, from: {line, ch}, to: {line, ch}, ?origin: string)

+      
Replace the part of the document between from
+      and to with the given string. from
+      and to must be {line, ch}
+      objects. to can be left off to simply insert the
+      string at position from. When origin
+      is given, it will be passed on
+      to "change" events, and
+      its first letter will be used to determine whether this change
+      can be merged with previous history events, in the way described
+      for selection origins.

+
+      
doc.getLine(n: integer) → string

+      
Get the content of line n.

+
+      
doc.lineCount() → integer

+      
Get the number of lines in the editor.

+      
doc.firstLine() → integer

+      
Get the first line of the editor. This will
+      usually be zero but for linked sub-views,
+      or documents instantiated with a non-zero
+      first line, it might return other values.

+      
doc.lastLine() → integer

+      
Get the last line of the editor. This will
+      usually be doc.lineCount() - 1,
+      but for linked sub-views,
+      it might return other values.

+
+      
doc.getLineHandle(num: integer) → LineHandle

+      
Fetches the line handle for the given line number.

+      
doc.getLineNumber(handle: LineHandle) → integer

+      
Given a line handle, returns the current position of that
+      line (or null when it is no longer in the
+      document).

+      
doc.eachLine(f: (line: LineHandle))

+      
doc.eachLine(start: integer, end: integer, f: (line: LineHandle))

+      
Iterate over the whole document, or if start
+      and end line numbers are given, the range
+      from start up to (not including) end,
+      and call f for each line, passing the line handle.
+      This is a faster way to visit a range of line handlers than
+      calling getLineHandle
+      for each of them. Note that line handles have
+      a text property containing the line's content (as a
+      string).

+
+      
doc.markClean()

+      
Set the editor content as 'clean', a flag that it will
+      retain until it is edited, and which will be set again when such
+      an edit is undone again. Useful to track whether the content
+      needs to be saved. This function is deprecated in favor
+      of changeGeneration,
+      which allows multiple subsystems to track different notions of
+      cleanness without interfering.

+      
doc.changeGeneration(?closeEvent: boolean) → integer

+      
Returns a number that can later be passed
+      to isClean to test whether
+      any edits were made (and not undone) in the meantime.
+      If closeEvent is true, the current history event
+      will be ‘closed’, meaning it can't be combined with further
+      changes (rapid typing or deleting events are typically
+      combined).

+      
doc.isClean(?generation: integer) → boolean

+      
Returns whether the document is currently clean — not
+      modified since initialization or the last call
+      to markClean if no
+      argument is passed, or since the matching call
+      to changeGeneration
+      if a generation value is given.

+    

+
+    
Cursor and selection methods

+
+    

+      
doc.getSelection(?lineSep: string) → string

+      
Get the currently selected code. Optionally pass a line
+      separator to put between the lines in the output. When multiple
+      selections are present, they are concatenated with instances
+      of lineSep in between.

+      
doc.getSelections(?lineSep: string) → array<string>

+      
Returns an array containing a string for each selection,
+      representing the content of the selections.

+
+      
doc.replaceSelection(replacement: string, ?select: string)

+      
Replace the selection(s) with the given string. By default,
+      the new selection ends up after the inserted text. The
+      optional select argument can be used to change
+      this—passing "around" will cause the new text to be
+      selected, passing "start" will collapse the
+      selection to the start of the inserted text.

+      
doc.replaceSelections(replacements: array<string>, ?select: string)

+      
The length of the given array should be the same as the
+      number of active selections. Replaces the content of the
+      selections with the strings in the array.
+      The select argument works the same as
+      in replaceSelection.

+
+      
doc.getCursor(?start: string) → {line, ch}

+      
Retrieve one end of the primary
+      selection. start is an optional string indicating
+      which end of the selection to return. It may
+      be "from", "to", "head"
+      (the side of the selection that moves when you press
+      shift+arrow), or "anchor" (the fixed side of the
+      selection). Omitting the argument is the same as
+      passing "head". A {line, ch} object
+      will be returned.

+      
doc.listSelections() → array<{anchor, head}>

+      
Retrieves a list of all current selections. These will
+      always be sorted, and never overlap (overlapping selections are
+      merged). Each object in the array contains anchor
+      and head properties referring to {line,
+      ch} objects.

+
+      
doc.somethingSelected() → boolean

+      
Return true if any text is selected.

+      
doc.setCursor(pos: {line, ch}|number, ?ch: number, ?options: object)

+      
Set the cursor position. You can either pass a
+      single {line, ch} object, or the line and the
+      character as two separate parameters. Will replace all
+      selections with a single, empty selection at the given position.
+      The supported options are the same as for setSelection.

+
+      
doc.setSelection(anchor: {line, ch}, ?head: {line, ch}, ?options: object)

+      
Set a single selection range. anchor
+      and head should be {line, ch}
+      objects. head defaults to anchor when
+      not given. These options are supported:
+      

+        
scroll: boolean

+        
Determines whether the selection head should be scrolled
+        into view. Defaults to true.

+        
origin: string

+        
Determines whether the selection history event may be
+        merged with the previous one. When an origin starts with the
+        character +, and the last recorded selection had
+        the same origin and was similar (close
+        in time, both
+        collapsed or both non-collapsed), the new one will replace the
+        old one. When it starts with *, it will always
+        replace the previous event (if that had the same origin).
+        Built-in motion uses the "+move" origin. User input uses the "+input" origin.

+        
bias: number

+        
Determine the direction into which the selection endpoints
+        should be adjusted when they fall inside
+        an atomic range. Can be either -1
+        (backward) or 1 (forward). When not given, the bias will be
+        based on the relative position of the old selection—the editor
+        will try to move further away from that, to prevent getting
+        stuck.

+      

+
+      
doc.setSelections(ranges: array<{anchor, head}>, ?primary: integer, ?options: object)

+      
Sets a new set of selections. There must be at least one
+      selection in the given array. When primary is a
+      number, it determines which selection is the primary one. When
+      it is not given, the primary index is taken from the previous
+      selection, or set to the last range if the previous selection
+      had less ranges than the new one. Supports the same options
+      as setSelection.

+      
doc.addSelection(anchor: {line, ch}, ?head: {line, ch})

+      
Adds a new selection to the existing set of selections, and
+      makes it the primary selection.

+
+      
doc.extendSelection(from: {line, ch}, ?to: {line, ch}, ?options: object)

+      
Similar
+      to setSelection, but
+      will, if shift is held or
+      the extending flag is set, move the
+      head of the selection while leaving the anchor at its current
+      place. to is optional, and can be passed to ensure
+      a region (for example a word or paragraph) will end up selected
+      (in addition to whatever lies between that region and the
+      current anchor). When multiple selections are present, all but
+      the primary selection will be dropped by this method.
+      Supports the same options as setSelection.

+      
doc.extendSelections(heads: array<{line, ch}>, ?options: object)

+      
An equivalent
+      of extendSelection
+      that acts on all selections at once.

+      
doc.extendSelectionsBy(f: function(range: {anchor, head}) → {line, ch}), ?options: object)

+      
Applies the given function to all existing selections, and
+      calls extendSelections
+      on the result.

+      
doc.setExtending(value: boolean)

+      
Sets or clears the 'extending' flag, which acts similar to
+      the shift key, in that it will cause cursor movement and calls
+      to extendSelection
+      to leave the selection anchor in place.

+      
doc.getExtending() → boolean

+      
Get the value of the 'extending' flag.

+
+      
cm.hasFocus() → boolean

+      
Tells you whether the editor currently has focus.

+
+      
cm.findPosH(start: {line, ch}, amount: integer, unit: string, visually: boolean) → {line, ch, ?hitSide: boolean}

+      
Used to find the target position for horizontal cursor
+      motion. start is a {line, ch}
+      object, amount an integer (may be negative),
+      and unit one of the
+      string "char", "column",
+      or "word". Will return a position that is produced
+      by moving amount times the distance specified
+      by unit. When visually is true, motion
+      in right-to-left text will be visual rather than logical. When
+      the motion was clipped by hitting the end or start of the
+      document, the returned value will have a hitSide
+      property set to true.

+      
cm.findPosV(start: {line, ch}, amount: integer, unit: string) → {line, ch, ?hitSide: boolean}

+      
Similar to findPosH,
+      but used for vertical motion. unit may
+      be "line" or "page". The other
+      arguments and the returned value have the same interpretation as
+      they have in findPosH.

+
+      
cm.findWordAt(pos: {line, ch}) → {anchor: {line, ch}, head: {line, ch}}

+      
Returns the start and end of the 'word' (the stretch of
+      letters, whitespace, or punctuation) at the given position.

+    

+
+    
Configuration methods

+
+    

+      
cm.setOption(option: string, value: any)

+      
Change the configuration of the editor. option
+      should the name of an option,
+      and value should be a valid value for that
+      option.

+      
cm.getOption(option: string) → any

+      
Retrieves the current value of the given option for this
+      editor instance.

+
+      
cm.addKeyMap(map: object, bottom: boolean)

+      
Attach an additional key map to the
+      editor. This is mostly useful for addons that need to register
+      some key handlers without trampling on
+      the extraKeys
+      option. Maps added in this way have a higher precedence than
+      the extraKeys
+      and keyMap options,
+      and between them, the maps added earlier have a lower precedence
+      than those added later, unless the bottom argument
+      was passed, in which case they end up below other key maps added
+      with this method.

+      
cm.removeKeyMap(map: object)

+      
Disable a keymap added
+      with addKeyMap. Either
+      pass in the key map object itself, or a string, which will be
+      compared against the name property of the active
+      key maps.

+
+      
cm.addOverlay(mode: string|object, ?options: object)

+      
Enable a highlighting overlay. This is a stateless mini-mode
+      that can be used to add extra highlighting. For example,
+      the search addon uses it to
+      highlight the term that's currently being
+      searched. mode can be a mode
+      spec or a mode object (an object with
+      a token method).
+      The options parameter is optional. If given, it
+      should be an object, optionally containing the following options:
+        

+          
opaque: bool

+          
Defaults to off, but can be given to allow the overlay
+          styling, when not null, to override the styling of
+          the base mode entirely, instead of the two being applied
+          together.

+          
priority: number

+          
Determines the ordering in which the overlays are
+          applied. Those with high priority are applied after those
+          with lower priority, and able to override the opaqueness of
+          the ones that come before. Defaults to 0.

+        

+      

+
+      
cm.removeOverlay(mode: string|object)

+      
Pass this the exact value passed for the mode
+      parameter to addOverlay,
+      or a string that corresponds to the name property of
+      that value, to remove an overlay again.

+
+      
cm.on(type: string, func: (...args))

+      
Register an event handler for the given event type (a
+      string) on the editor instance. There is also
+      a CodeMirror.on(object, type, func) version
+      that allows registering of events on any object.

+      
cm.off(type: string, func: (...args))

+      
Remove an event handler on the editor instance. An
+      equivalent CodeMirror.off(object, type,
+      func) also exists.

+    

+
+    
Document management methods

+
+    
Each editor is associated with an instance
+    of CodeMirror.Doc, its document. A document
+    represents the editor content, plus a selection, an undo history,
+    and a mode. A document can only be
+    associated with a single editor at a time. You can create new
+    documents by calling the CodeMirror.Doc(text, mode,
+    firstLineNumber) constructor. The last two arguments are
+    optional and can be used to set a mode for the document and make
+    it start at a line number other than 0, respectively.

+
+    

+      
cm.getDoc() → Doc

+      
Retrieve the currently active document from an editor.

+      
doc.getEditor() → CodeMirror

+      
Retrieve the editor associated with a document. May
+      return null.

+
+      
cm.swapDoc(doc: CodeMirror.Doc) → Doc

+      
Attach a new document to the editor. Returns the old
+      document, which is now no longer associated with an editor.

+
+      
doc.copy(copyHistory: boolean) → Doc

+      
Create an identical copy of the given doc.
+      When copyHistory is true, the history will also be
+      copied. Can not be called directly on an editor.

+
+      
doc.linkedDoc(options: object) → Doc

+      
Create a new document that's linked to the target document.
+      Linked documents will stay in sync (changes to one are also
+      applied to the other) until unlinked.
+      These are the options that are supported:
+        

+          
sharedHist: boolean

+          
When turned on, the linked copy will share an undo
+          history with the original. Thus, something done in one of
+          the two can be undone in the other, and vice versa.

+          
from: integer

+          
to: integer

+          
Can be given to make the new document a subview of the
+          original. Subviews only show a given range of lines. Note
+          that line coordinates inside the subview will be consistent
+          with those of the parent, so that for example a subview
+          starting at line 10 will refer to its first line as line 10,
+          not 0.

+          
mode: string|object

+          
By default, the new document inherits the mode of the
+          parent. This option can be set to
+          a mode spec to give it a
+          different mode.

+        

+      
doc.unlinkDoc(doc: CodeMirror.Doc)

+      
Break the link between two documents. After calling this,
+      changes will no longer propagate between the documents, and, if
+      they had a shared history, the history will become
+      separate.

+      
doc.iterLinkedDocs(function: (doc: CodeMirror.Doc, sharedHist: boolean))

+      
Will call the given function for all documents linked to the
+      target document. It will be passed two arguments, the linked document
+      and a boolean indicating whether that document shares history
+      with the target.

+    

+
+    
History-related methods

+
+    

+      
doc.undo()

+      
Undo one edit (if any undo events are stored).

+      
doc.redo()

+      
Redo one undone edit.

+
+      
doc.undoSelection()

+      
Undo one edit or selection change.

+      
doc.redoSelection()

+      
Redo one undone edit or selection change.

+
+      
doc.historySize() → {undo: integer, redo: integer}

+      
Returns an object with {undo, redo} properties,
+      both of which hold integers, indicating the amount of stored
+      undo and redo operations.

+      
doc.clearHistory()

+      
Clears the editor's undo history.

+      
doc.getHistory() → object

+      
Get a (JSON-serializable) representation of the undo history.

+      
doc.setHistory(history: object)

+      
Replace the editor's undo history with the one provided,
+      which must be a value as returned
+      by getHistory. Note that
+      this will have entirely undefined results if the editor content
+      isn't also the same as it was when getHistory was
+      called.

+    

+
+    
Text-marking methods

+
+    

+      
doc.markText(from: {line, ch}, to: {line, ch}, ?options: object) → TextMarker

+      
Can be used to mark a range of text with a specific CSS
+      class name. from and to should
+      be {line, ch} objects. The options
+      parameter is optional. When given, it should be an object that
+      may contain the following configuration options:
+      

+        
className: string

+        
Assigns a CSS class to the marked stretch of text.

+        
inclusiveLeft: boolean

+        
Determines whether
+        text inserted on the left of the marker will end up inside
+        or outside of it.

+        
inclusiveRight: boolean

+        
Like inclusiveLeft,
+        but for the right side.

+        
atomic: boolean

+        
Atomic ranges act as a single unit when cursor movement is
+        concerned—i.e. it is impossible to place the cursor inside of
+        them. In atomic ranges, inclusiveLeft
+        and inclusiveRight have a different meaning—they
+        will prevent the cursor from being placed respectively
+        directly before and directly after the range.

+        
collapsed: boolean

+        
Collapsed ranges do not show up in the display. Setting a
+        range to be collapsed will automatically make it atomic.

+        
clearOnEnter: boolean

+        
When enabled, will cause the mark to clear itself whenever
+        the cursor enters its range. This is mostly useful for
+        text-replacement widgets that need to 'snap open' when the
+        user tries to edit them. The
+        "clear" event
+        fired on the range handle can be used to be notified when this
+        happens.

+        
clearWhenEmpty: boolean

+        
Determines whether the mark is automatically cleared when
+        it becomes empty. Default is true.

+        
replacedWith: Element

+        
Use a given node to display this range. Implies both
+        collapsed and atomic. The given DOM node must be an
+        inline element (as opposed to a block element).

+        
handleMouseEvents: boolean

+        
When replacedWith is given, this determines
+        whether the editor will capture mouse and drag events
+        occurring in this widget. Default is false—the events will be
+        left alone for the default browser handler, or specific
+        handlers on the widget, to capture.

+        
readOnly: boolean

+        
A read-only span can, as long as it is not cleared, not be
+        modified except by
+        calling setValue to reset
+        the whole document. Note: adding a read-only span
+        currently clears the undo history of the editor, because
+        existing undo events being partially nullified by read-only
+        spans would corrupt the history (in the current
+        implementation).

+        
addToHistory: boolean

+        
When set to true (default is false), adding this marker
+        will create an event in the undo history that can be
+        individually undone (clearing the marker).

+        
startStyle: string
Can be used to specify
+        an extra CSS class to be applied to the leftmost span that
+        is part of the marker.

+        
endStyle: string
Equivalent
+        to startStyle, but for the rightmost span.

+        
css: string

+        
A string of CSS to be applied to the covered text. For example "color: #fe3".

+        
title:
+        string
When given, will give the nodes created
+        for this span a HTML title attribute with the
+        given value.

+        
shared: boolean
When the
+        target document is linked to other
+        documents, you can set shared to true to make the
+        marker appear in all documents. By default, a marker appears
+        only in its target document.

+      

+      The method will return an object that represents the marker
+      (with constructor CodeMirror.TextMarker), which
+      exposes three methods:
+      clear(), to remove the mark,
+      find(), which returns
+      a {from, to} object (both holding document
+      positions), indicating the current position of the marked range,
+      or undefined if the marker is no longer in the
+      document, and finally changed(),
+      which you can call if you've done something that might change
+      the size of the marker (for example changing the content of
+      a replacedWith
+      node), and want to cheaply update the display.

+
+      
doc.setBookmark(pos: {line, ch}, ?options: object) → TextMarker

+      
Inserts a bookmark, a handle that follows the text around it
+      as it is being edited, at the given position. A bookmark has two
+      methods find() and clear(). The first
+      returns the current position of the bookmark, if it is still in
+      the document, and the second explicitly removes the bookmark.
+      The options argument is optional. If given, the following
+      properties are recognized:
+      

+        
widget: Element
Can be used to display a DOM
+        node at the current location of the bookmark (analogous to
+        the replacedWith
+        option to markText).

+        
insertLeft: boolean
By default, text typed
+        when the cursor is on top of the bookmark will end up to the
+        right of the bookmark. Set this option to true to make it go
+        to the left instead.

+        
shared: boolean
See
+        the corresponding option
+        to markText.

+        
handleMouseEvents: boolean

+        
As with markText,
+        this determines whether mouse events on the widget inserted
+        for this bookmark are handled by CodeMirror. The default is
+        false.

+      

+
+      
doc.findMarks(from: {line, ch}, to: {line, ch}) → array<TextMarker>

+      
Returns an array of all the bookmarks and marked ranges
+      found between the given positions (non-inclusive).

+      
doc.findMarksAt(pos: {line, ch}) → array<TextMarker>

+      
Returns an array of all the bookmarks and marked ranges
+      present at the given position.

+      
doc.getAllMarks() → array<TextMarker>

+      
Returns an array containing all marked ranges in the document.

+    

+
+    
Widget, gutter, and decoration methods

+
+    

+      
doc.setGutterMarker(line: integer|LineHandle, gutterID: string, value: Element) → LineHandle

+      
Sets the gutter marker for the given gutter (identified by
+      its CSS class, see
+      the gutters option)
+      to the given value. Value can be either null, to
+      clear the marker, or a DOM element, to set it. The DOM element
+      will be shown in the specified gutter next to the specified
+      line.

+
+      
doc.clearGutter(gutterID: string)

+      
Remove all gutter markers in
+      the gutter with the given ID.

+
+      
doc.addLineClass(line: integer|LineHandle, where: string, class: string) → LineHandle

+      
Set a CSS class name for the given line. line
+      can be a number or a line handle. where determines
+      to which element this class should be applied, can can be one
+      of "text" (the text element, which lies in front of
+      the selection), "background" (a background element
+      that will be behind the selection), "gutter" (the
+      line's gutter space), or "wrap" (the wrapper node
+      that wraps all of the line's elements, including gutter
+      elements). class should be the name of the class to
+      apply.

+
+      
doc.removeLineClass(line: integer|LineHandle, where: string, class: string) → LineHandle

+      
Remove a CSS class from a line. line can be a
+      line handle or number. where should be one
+      of "text", "background",
+      or "wrap"
+      (see addLineClass). class
+      can be left off to remove all classes for the specified node, or
+      be a string to remove only a specific class.

+
+      
doc.lineInfo(line: integer|LineHandle) → object

+      
Returns the line number, text content, and marker status of
+      the given line, which can be either a number or a line handle.
+      The returned object has the structure {line, handle, text,
+      gutterMarkers, textClass, bgClass, wrapClass, widgets},
+      where gutterMarkers is an object mapping gutter IDs
+      to marker elements, and widgets is an array
+      of line widgets attached to this
+      line, and the various class properties refer to classes added
+      with addLineClass.

+
+      
cm.addWidget(pos: {line, ch}, node: Element, scrollIntoView: boolean)

+      
Puts node, which should be an absolutely
+      positioned DOM node, into the editor, positioned right below the
+      given {line, ch} position.
+      When scrollIntoView is true, the editor will ensure
+      that the entire node is visible (if possible). To remove the
+      widget again, simply use DOM methods (move it somewhere else, or
+      call removeChild on its parent).

+
+      
doc.addLineWidget(line: integer|LineHandle, node: Element, ?options: object) → LineWidget

+      
Adds a line widget, an element shown below a line, spanning
+      the whole of the editor's width, and moving the lines below it
+      downwards. line should be either an integer or a
+      line handle, and node should be a DOM node, which
+      will be displayed below the given line. options,
+      when given, should be an object that configures the behavior of
+      the widget. The following options are supported (all default to
+      false):
+        

+          
coverGutter: boolean

+          
Whether the widget should cover the gutter.

+          
noHScroll: boolean

+          
Whether the widget should stay fixed in the face of
+          horizontal scrolling.

+          
above: boolean

+          
Causes the widget to be placed above instead of below
+          the text of the line.

+          
handleMouseEvents: boolean

+          
Determines whether the editor will capture mouse and
+          drag events occurring in this widget. Default is false—the
+          events will be left alone for the default browser handler,
+          or specific handlers on the widget, to capture.

+          
insertAt: integer

+          
By default, the widget is added below other widgets for
+          the line. This option can be used to place it at a different
+          position (zero for the top, N to put it after the Nth other
+          widget). Note that this only has effect once, when the
+          widget is created.
+        

+      Note that the widget node will become a descendant of nodes with
+      CodeMirror-specific CSS classes, and those classes might in some
+      cases affect it. This method returns an object that represents
+      the widget placement. It'll have a line property
+      pointing at the line handle that it is associated with, and the following methods:
+        

+          
clear()
Removes the widget.

+          
changed()
Call
+          this if you made some change to the widget's DOM node that
+          might affect its height. It'll force CodeMirror to update
+          the height of the line that contains the widget.

+        

+      

+    

+
+    
Sizing, scrolling and positioning methods

+
+    

+      
cm.setSize(width: number|string, height: number|string)

+      
Programmatically set the size of the editor (overriding the
+      applicable CSS
+      rules). width and height
+      can be either numbers (interpreted as pixels) or CSS units
+      ("100%", for example). You can
+      pass null for either of them to indicate that that
+      dimension should not be changed.

+
+      
cm.scrollTo(x: number, y: number)

+      
Scroll the editor to a given (pixel) position. Both
+      arguments may be left as null
+      or undefined to have no effect.

+      
cm.getScrollInfo() → {left, top, width, height, clientWidth, clientHeight}

+      
Get an {left, top, width, height, clientWidth,
+      clientHeight} object that represents the current scroll
+      position, the size of the scrollable area, and the size of the
+      visible area (minus scrollbars).

+      
cm.scrollIntoView(what: {line, ch}|{left, top, right, bottom}|{from, to}|null, ?margin: number)

+      
Scrolls the given position into view. what may
+      be null to scroll the cursor into view,
+      a {line, ch} position to scroll a character into
+      view, a {left, top, right, bottom} pixel range (in
+      editor-local coordinates), or a range {from, to}
+      containing either two character positions or two pixel squares.
+      The margin parameter is optional. When given, it
+      indicates the amount of vertical pixels around the given area
+      that should be made visible as well.

+
+      
cm.cursorCoords(where: boolean|{line, ch}, mode: string) → {left, top, bottom}

+      
Returns an {left, top, bottom} object
+      containing the coordinates of the cursor position.
+      If mode is "local", they will be
+      relative to the top-left corner of the editable document. If it
+      is "page" or not given, they are relative to the
+      top-left corner of the page. If mode
+      is "window", the coordinates are relative to the
+      top-left corner of the currently visible (scrolled)
+      window. where can be a boolean indicating whether
+      you want the start (true) or the end
+      (false) of the selection, or, if a {line,
+      ch} object is given, it specifies the precise position at
+      which you want to measure.

+      
cm.charCoords(pos: {line, ch}, ?mode: string) → {left, right, top, bottom}

+      
Returns the position and dimensions of an arbitrary
+      character. pos should be a {line, ch}
+      object. This differs from cursorCoords in that
+      it'll give the size of the whole character, rather than just the
+      position that the cursor would have when it would sit at that
+      position.

+      
cm.coordsChar(object: {left, top}, ?mode: string) → {line, ch}

+      
Given an {left, top} object, returns
+      the {line, ch} position that corresponds to it. The
+      optional mode parameter determines relative to what
+      the coordinates are interpreted. It may
+      be "window", "page" (the default),
+      or "local".

+      
cm.lineAtHeight(height: number, ?mode: string) → number

+      
Computes the line at the given pixel
+      height. mode can be one of the same strings
+      that coordsChar
+      accepts.

+      
cm.heightAtLine(line: integer|LineHandle, ?mode: string, ?includeWidgets: bool) → number

+      
Computes the height of the top of a line, in the coordinate
+      system specified by mode
+      (see coordsChar), which
+      defaults to "page". When a line below the bottom of
+      the document is specified, the returned value is the bottom of
+      the last line in the document. By default, the position of the
+      actual text is returned. If `includeWidgets` is true and the
+      line has line widgets, the position above the first line widget
+      is returned.

+      
cm.defaultTextHeight() → number

+      
Returns the line height of the default font for the editor.

+      
cm.defaultCharWidth() → number

+      
Returns the pixel width of an 'x' in the default font for
+      the editor. (Note that for non-monospace fonts, this is mostly
+      useless, and even for monospace fonts, non-ascii characters
+      might have a different width).

+
+      
cm.getViewport() → {from: number, to: number}

+      
Returns a {from, to} object indicating the
+      start (inclusive) and end (exclusive) of the currently rendered
+      part of the document. In big documents, when most content is
+      scrolled out of view, CodeMirror will only render the visible
+      part, and a margin around it. See also
+      the viewportChange
+      event.

+
+      
cm.refresh()

+      
If your code does something to change the size of the editor
+      element (window resizes are already listened for), or unhides
+      it, you should probably follow up by calling this method to
+      ensure CodeMirror is still looking as intended. See also
+      the autorefresh addon.

+    

+
+    
Mode, state, and token-related methods

+
+    
When writing language-aware functionality, it can often be
+    useful to hook into the knowledge that the CodeMirror language
+    mode has. See the section on modes for a
+    more detailed description of how these work.

+
+    

+      
doc.getMode() → object

+      
Gets the (outer) mode object for the editor. Note that this
+      is distinct from getOption("mode"), which gives you
+      the mode specification, rather than the resolved, instantiated
+      mode object.

+
+      
cm.getModeAt(pos: {line, ch}) → object

+      
Gets the inner mode at a given position. This will return
+      the same as getMode for
+      simple modes, but will return an inner mode for nesting modes
+      (such as htmlmixed).

+
+      
cm.getTokenAt(pos: {line, ch}, ?precise: boolean) → object

+      
Retrieves information about the token the current mode found
+      before the given position (a {line, ch} object). The
+      returned object has the following properties:
+      

+        
start
The character (on the given line) at which the token starts.

+        
end
The character at which the token ends.

+        
string
The token's string.

+        
type
The token type the mode assigned
+        to the token, such as "keyword"
+        or "comment" (may also be null).

+        
state
The mode's state at the end of this token.

+      

+      If precise is true, the token will be guaranteed to be accurate based on recent edits. If false or
+      not specified, the token will use cached state information, which will be faster but might not be accurate if
+      edits were recently made and highlighting has not yet completed.
+      

+
+      
cm.getLineTokens(line: integer, ?precise: boolean) → array<{start, end, string, type, state}>

+      
This is similar
+      to getTokenAt, but
+      collects all tokens for a given line into an array. It is much
+      cheaper than repeatedly calling getTokenAt, which
+      re-parses the part of the line before the token for every call.

+
+      
cm.getTokenTypeAt(pos: {line, ch}) → string

+      
This is a (much) cheaper version
+      of getTokenAt useful for
+      when you just need the type of the token at a given position,
+      and no other information. Will return null for
+      unstyled tokens, and a string, potentially containing multiple
+      space-separated style names, otherwise.

+
+      
cm.getHelpers(pos: {line, ch}, type: string) → array<helper>

+      
Fetch the set of applicable helper values for the given
+      position. Helpers provide a way to look up functionality
+      appropriate for a mode. The type argument provides
+      the helper namespace (see
+      registerHelper), in
+      which the values will be looked up. When the mode itself has a
+      property that corresponds to the type, that
+      directly determines the keys that are used to look up the helper
+      values (it may be either a single string, or an array of
+      strings). Failing that, the mode's helperType
+      property and finally the mode's name are used.

+      
For example, the JavaScript mode has a
+      property fold containing "brace". When
+      the brace-fold addon is loaded, that defines a
+      helper named brace in the fold
+      namespace. This is then used by
+      the foldcode addon to
+      figure out that it can use that folding function to fold
+      JavaScript code.

+      
When any 'global'
+      helpers are defined for the given namespace, their predicates
+      are called on the current mode and editor, and all those that
+      declare they are applicable will also be added to the array that
+      is returned.

+
+      
cm.getHelper(pos: {line, ch}, type: string) → helper

+      
Returns the first applicable helper value.
+      See getHelpers.

+
+      
cm.getStateAfter(?line: integer, ?precise: boolean) → object

+      
Returns the mode's parser state, if any, at the end of the
+      given line number. If no line number is given, the state at the
+      end of the document is returned. This can be useful for storing
+      parsing errors in the state, or getting other kinds of
+      contextual information for a line. precise is defined
+      as in getTokenAt().

+    

+
+    
Miscellaneous methods

+
+    

+      
cm.operation(func: () → any) → any

+      
CodeMirror internally buffers changes and only updates its
+      DOM structure after it has finished performing some operation.
+      If you need to perform a lot of operations on a CodeMirror
+      instance, you can call this method with a function argument. It
+      will call the function, buffering up all changes, and only doing
+      the expensive update after the function returns. This can be a
+      lot faster. The return value from this method will be the return
+      value of your function.

+
+      
cm.indentLine(line: integer, ?dir: string|integer)

+      
Adjust the indentation of the given line. The second
+      argument (which defaults to "smart") may be one of:
+        

+          
"prev"

+          
Base indentation on the indentation of the previous line.

+          
"smart"

+          
Use the mode's smart indentation if available, behave
+          like "prev" otherwise.

+          
"add"

+          
Increase the indentation of the line by
+          one indent unit.

+          
"subtract"

+          
Reduce the indentation of the line.

+          
<integer>

+          
Add (positive number) or reduce (negative number) the
+          indentation by the given amount of spaces.

+        

+
+      
cm.toggleOverwrite(?value: boolean)

+      
Switches between overwrite and normal insert mode (when not
+      given an argument), or sets the overwrite mode to a specific
+      state (when given an argument).

+
+      
cm.isReadOnly() → boolean

+      
Tells you whether the editor's content can be edited by the
+      user.

+
+      
doc.lineSeparator()

+      
Returns the preferred line separator string for this
+      document, as per the option
+      by the same name. When that option is null, the
+      string "\n" is returned.

+
+      
cm.execCommand(name: string)

+      
Runs the command with the given name on the editor.

+
+      
doc.posFromIndex(index: integer) → {line, ch}

+      
Calculates and returns a {line, ch} object for a
+      zero-based index who's value is relative to the start of the
+      editor's text. If the index is out of range of the text then
+      the returned object is clipped to start or end of the text
+      respectively.

+      
doc.indexFromPos(object: {line, ch}) → integer

+      
The reverse of posFromIndex.

+
+      
cm.focus()

+      
Give the editor focus.

+
+      
cm.getInputField() → Element

+      
Returns the input field for the editor. Will be a textarea
+      or an editable div, depending on the value of
+      the inputStyle
+      option.

+      
cm.getWrapperElement() → Element

+      
Returns the DOM node that represents the editor, and
+      controls its size. Remove this from your tree to delete an
+      editor instance.

+      
cm.getScrollerElement() → Element

+      
Returns the DOM node that is responsible for the scrolling
+      of the editor.

+      
cm.getGutterElement() → Element

+      
Fetches the DOM node that contains the editor gutters.

+    

+
+    
Static properties

+    
The CodeMirror object itself provides
+    several useful properties.

+
+    

+      
CodeMirror.version: string

+      
It contains a string that indicates the version of the
+      library. This is a triple of
+      integers "major.minor.patch",
+      where patch is zero for releases, and something
+      else (usually one) for dev snapshots.

+
+      
CodeMirror.fromTextArea(textArea: TextAreaElement, ?config: object)

+      
This method provides another way to initialize an editor. It
+      takes a textarea DOM node as first argument and an optional
+      configuration object as second. It will replace the textarea
+      with a CodeMirror instance, and wire up the form of that
+      textarea (if any) to make sure the editor contents are put into
+      the textarea when the form is submitted. The text in the
+      textarea will provide the content for the editor. A CodeMirror
+      instance created this way has three additional methods:
+      

+        
cm.save()

+        
Copy the content of the editor into the textarea.

+
+        
cm.toTextArea()

+        
Remove the editor, and restore the original textarea (with
+        the editor's current content). If you dynamically create and
+        destroy editors made with `fromTextArea`, without destroying
+        the form they are part of, you should make sure to call
+        `toTextArea` to remove the editor, or its `"submit"` handler
+        on the form will cause a memory leak.

+
+        
cm.getTextArea() → TextAreaElement

+        
Returns the textarea that the instance was based on.

+      

+      

+
+      
CodeMirror.defaults: object

+      
An object containing default values for
+      all options. You can assign to its
+      properties to modify defaults (though this won't affect editors
+      that have already been created).

+
+      
CodeMirror.defineExtension(name: string, value: any)

+      
If you want to define extra methods in terms of the
+      CodeMirror API, it is possible to
+      use defineExtension. This will cause the given
+      value (usually a method) to be added to all CodeMirror instances
+      created from then on.

+
+      
CodeMirror.defineDocExtension(name: string, value: any)

+      
Like defineExtension,
+      but the method will be added to the interface
+      for Doc objects instead.

+
+      
CodeMirror.defineOption(name: string,
+      default: any, updateFunc: function)

+      
Similarly, defineOption can be used to define new options for
+      CodeMirror. The updateFunc will be called with the
+      editor instance and the new value when an editor is initialized,
+      and whenever the option is modified
+      through setOption.

+
+      
CodeMirror.defineInitHook(func: function)

+      
If your extension just needs to run some
+      code whenever a CodeMirror instance is initialized,
+      use CodeMirror.defineInitHook. Give it a function as
+      its only argument, and from then on, that function will be called
+      (with the instance as argument) whenever a new CodeMirror instance
+      is initialized.

+
+      
CodeMirror.registerHelper(type: string, name: string, value: helper)

+      
Registers a helper value with the given name in
+      the given namespace (type). This is used to define
+      functionality that may be looked up by mode. Will create (if it
+      doesn't already exist) a property on the CodeMirror
+      object for the given type, pointing to an object
+      that maps names to values. I.e. after
+      doing CodeMirror.registerHelper("hint", "foo",
+      myFoo), the value CodeMirror.hint.foo will
+      point to myFoo.

+
+      
CodeMirror.registerGlobalHelper(type: string, name: string, predicate: fn(mode, CodeMirror), value: helper)

+      
Acts
+      like registerHelper,
+      but also registers this helper as 'global', meaning that it will
+      be included by getHelpers
+      whenever the given predicate returns true when
+      called with the local mode and editor.

+
+      
CodeMirror.Pos(line: integer, ?ch: integer, ?sticky: string)

+      
A constructor for the objects that are used to represent
+      positions in editor documents. sticky defaults to
+      null, but can be set to "before"
+      or "after" to make the position explicitly
+      associate with the character before or after it.

+
+      
CodeMirror.changeEnd(change: object) → {line, ch}

+      
Utility function that computes an end position from a change
+      (an object with from, to,
+      and text properties, as passed to
+      various event handlers). The
+      returned position will be the end of the changed
+      range, after the change is applied.

+    

+

+
+

+    
Addons

+
+    
The addon directory in the distribution contains a
+    number of reusable components that implement extra editor
+    functionality (on top of extension functions
+    like defineOption, defineExtension,
+    and registerHelper). In
+    brief, they are:

+
+    

+      
dialog/dialog.js

+      
Provides a very simple way to query users for text input.
+      Adds the openDialog(template, callback, options) →
+      closeFunction method to CodeMirror instances,
+      which can be called with an HTML fragment or a detached DOM
+      node that provides the prompt (should include an input
+      or button tag), and a callback function that is called
+      when the user presses enter. It returns a function closeFunction
+      which, if called, will close the dialog immediately.
+      openDialog takes the following options:
+        

+          
closeOnEnter: bool

+          
If true, the dialog will be closed when the user presses
+          enter in the input. Defaults to true.

+          
closeOnBlur: bool

+          
Determines whether the dialog is closed when it loses focus. Defaults to true.

+          
onKeyDown: fn(event: KeyboardEvent, value: string, close: fn()) → bool

+          
An event handler that will be called whenever keydown fires in the
+          dialog's input. If your callback returns true,
+          the dialog will not do any further processing of the event.

+          
onKeyUp: fn(event: KeyboardEvent, value: string, close: fn()) → bool

+          
Same as onKeyDown but for the
+          keyup event.

+          
onInput: fn(event: InputEvent, value: string, close: fn()) → bool

+          
Same as onKeyDown but for the
+          input event.

+          
onClose: fn(instance):

+          
A callback that will be called after the dialog has been closed and
+          removed from the DOM. No return value.

+        

+
+      
Also adds an openNotification(template, options) →
+      closeFunction function that simply shows an HTML
+      fragment as a notification at the top of the editor. It takes a
+      single option: duration, the amount of time after
+      which the notification will be automatically closed. If 
+      duration is zero, the dialog will not be closed automatically.

+
+      
Depends on addon/dialog/dialog.css.

+
+      
search/searchcursor.js

+      
Adds the getSearchCursor(query, start, caseFold) →
+      cursor method to CodeMirror instances, which can be used
+      to implement search/replace functionality. query
+      can be a regular expression or a string (only strings will match
+      across lines—if they contain newlines). start
+      provides the starting position of the search. It can be
+      a {line, ch} object, or can be left off to default
+      to the start of the document. caseFold is only
+      relevant when matching a string. It will cause the search to be
+      case-insensitive. A search cursor has the following methods:
+        

+          
findNext() → boolean

+          
findPrevious() → boolean

+          
Search forward or backward from the current position.
+          The return value indicates whether a match was found. If
+          matching a regular expression, the return value will be the
+          array returned by the match method, in case you
+          want to extract matched groups.

+          
from() → {line, ch}

+          
to() → {line, ch}

+          
These are only valid when the last call
+          to findNext or findPrevious did
+          not return false. They will return {line, ch}
+          objects pointing at the start and end of the match.

+          
replace(text: string, ?origin: string)

+          
Replaces the currently found match with the given text
+          and adjusts the cursor position to reflect the
+          replacement.

+        

+
+      
+      
Implements the search commands. CodeMirror has keys bound to
+      these by default, but will not do anything with them unless an
+      implementation is provided. Depends
+      on searchcursor.js, and will make use
+      of openDialog when
+      available to make prompting for search queries less ugly.

+
+      
search/jump-to-line.js

+      
Implements a jumpToLine command and binding Alt-G to it.
+      Accepts linenumber, +/-linenumber, line:char,
+      scroll% and :linenumber formats.
+      This will make use of openDialog
+      when available to make prompting for line number neater.

+
+      
search/matchesonscrollbar.js

+      
Adds a showMatchesOnScrollbar method to editor
+      instances, which should be given a query (string or regular
+      expression), optionally a case-fold flag (only applicable for
+      strings), and optionally a class name (defaults
+      to CodeMirror-search-match) as arguments. When
+      called, matches of the given query will be displayed on the
+      editor's vertical scrollbar. The method returns an object with
+      a clear method that can be called to remove the
+      matches. Depends on
+      the annotatescrollbar
+      addon, and
+      the matchesonscrollbar.css
+      file provides a default (transparent yellowish) definition of
+      the CSS class applied to the matches. Note that the matches are
+      only perfectly aligned if your scrollbar does not have buttons
+      at the top and bottom. You can use
+      the simplescrollbar
+      addon to make sure of this. If this addon is loaded,
+      the search addon will
+      automatically use it.

+
+      
edit/matchbrackets.js

+      
Defines an option matchBrackets which, when set
+      to true, causes matching brackets to be highlighted whenever the
+      cursor is next to them. It also adds a
+      method matchBrackets that forces this to happen
+      once, and a method findMatchingBracket that can be
+      used to run the bracket-finding algorithm that this uses
+      internally.

+
+      
edit/closebrackets.js

+      
Defines an option autoCloseBrackets that will
+      auto-close brackets and quotes when typed. By default, it'll
+      auto-close ()[]{}''"", but you can pass it a string
+      similar to that (containing pairs of matching characters), or an
+      object with pairs and
+      optionally explode properties to customize
+      it. explode should be a similar string that gives
+      the pairs of characters that, when enter is pressed between
+      them, should have the second character also moved to its own
+      line. By default, if the active mode has
+      a closeBrackets property, that overrides the
+      configuration given in the option. But you can add
+      an override property with a truthy value to
+      override mode-specific
+      configuration. Demo
+      here.

+
+      
edit/matchtags.js

+      
Defines an option matchTags that, when enabled,
+      will cause the tags around the cursor to be highlighted (using
+      the CodeMirror-matchingtag class). Also
+      defines
+      a command toMatchingTag,
+      which you can bind a key to in order to jump to the tag matching
+      the one under the cursor. Depends on
+      the addon/fold/xml-fold.js
+      addon. Demo here.

+
+      
edit/trailingspace.js

+      
Adds an option showTrailingSpace which, when
+      enabled, adds the CSS class cm-trailingspace to
+      stretches of whitespace at the end of lines.
+      The demo has a nice
+      squiggly underline style for this class.

+
+      
edit/closetag.js

+      
Defines an autoCloseTags option that will
+      auto-close XML tags when '>' or '/'
+      is typed, and
+      a closeTag command that
+      closes the nearest open tag. Depends on
+      the fold/xml-fold.js addon. See
+      the demo.

+
+      
edit/continuelist.js

+      
Markdown specific. Defines
+      a "newlineAndIndentContinueMarkdownList" command
+      that can be bound to enter to automatically
+      insert the leading characters for continuing a list. See
+      the Markdown mode
+      demo.

+
+      
comment/comment.js

+      
Addon for commenting and uncommenting code. Adds four
+      methods to CodeMirror instances:
+      

+        
toggleComment(from: {line, ch}, to: {line, ch}, ?options: object)

+        
Tries to uncomment the current selection, and if that
+        fails, line-comments it.

+        
lineComment(from: {line, ch}, to: {line, ch}, ?options: object)

+        
Set the lines in the given range to be line comments. Will
+        fall back to blockComment when no line comment
+        style is defined for the mode.

+        
blockComment(from: {line, ch}, to: {line, ch}, ?options: object)

+        
Wrap the code in the given range in a block comment. Will
+        fall back to lineComment when no block comment
+        style is defined for the mode.

+        
uncomment(from: {line, ch}, to: {line, ch}, ?options: object) → boolean

+        
Try to uncomment the given range.
+          Returns true if a comment range was found and
+          removed, false otherwise.

+      

+      The options object accepted by these methods may
+      have the following properties:
+      

+        
blockCommentStart, blockCommentEnd, blockCommentLead, lineComment: string

+        
Override the comment string
+        properties of the mode with custom comment strings.

+        
padding: string

+        
A string that will be inserted after opening and leading
+        markers, and before closing comment markers. Defaults to a
+        single space.

+        
commentBlankLines: boolean

+        
Whether, when adding line comments, to also comment lines
+        that contain only whitespace.

+        
indent: boolean

+        
When adding line comments and this is turned on, it will
+        align the comment block to the current indentation of the
+        first line of the block.

+        
fullLines: boolean

+        
When block commenting, this controls whether the whole
+        lines are indented, or only the precise range that is given.
+        Defaults to true.

+      

+      The addon also defines
+      a toggleComment command,
+      which is a shorthand command for calling
+      toggleComment with no options.

+
+      
fold/foldcode.js

+      
Helps with code folding. Adds a foldCode method
+      to editor instances, which will try to do a code fold starting
+      at the given line, or unfold the fold that is already present.
+      The method takes as first argument the position that should be
+      folded (may be a line number or
+      a Pos), and as second optional
+      argument either a range-finder function, or an options object,
+      supporting the following properties:
+      

+        
rangeFinder: fn(CodeMirror, Pos)

+        
The function that is used to find
+        foldable ranges. If this is not directly passed, it will
+        default to CodeMirror.fold.auto, which
+        uses getHelpers with
+        a "fold" type to find folding functions
+        appropriate for the local mode. There are files in
+        the addon/fold/
+        directory providing CodeMirror.fold.brace, which
+        finds blocks in brace languages (JavaScript, C, Java,
+        etc), CodeMirror.fold.indent, for languages where
+        indentation determines block structure (Python, Haskell),
+        and CodeMirror.fold.xml, for XML-style languages,
+        and CodeMirror.fold.comment, for folding comment
+        blocks.

+        
widget: string|Element

+        
The widget to show for folded ranges. Can be either a
+        string, in which case it'll become a span with
+        class CodeMirror-foldmarker, or a DOM node.

+        
scanUp: boolean

+        
When true (default is false), the addon will try to find
+        foldable ranges on the lines above the current one if there
+        isn't an eligible one on the given line.

+        
minFoldSize: integer

+        
The minimum amount of lines that a fold should span to be
+        accepted. Defaults to 0, which also allows single-line
+        folds.

+      

+      See the demo for an
+      example.

+
+      
fold/foldgutter.js

+      
Provides an option foldGutter, which can be
+      used to create a gutter with markers indicating the blocks that
+      can be folded. Create a gutter using
+      the gutters option,
+      giving it the class CodeMirror-foldgutter or
+      something else if you configure the addon to use a different
+      class, and this addon will show markers next to folded and
+      foldable blocks, and handle clicks in this gutter. Note that
+      CSS styles should be applied to make the gutter, and the fold
+      markers within it, visible. A default set of CSS styles are
+      available in:
+      
+        addon/fold/foldgutter.css
+      .
+      The option
+      can be either set to true, or an object containing
+      the following optional option fields:
+      

+        
gutter: string

+        
The CSS class of the gutter. Defaults
+        to "CodeMirror-foldgutter". You will have to
+        style this yourself to give it a width (and possibly a
+        background). See the default gutter style rules above.

+        
indicatorOpen: string | Element

+        
A CSS class or DOM element to be used as the marker for
+        open, foldable blocks. Defaults
+        to "CodeMirror-foldgutter-open".

+        
indicatorFolded: string | Element

+        
A CSS class or DOM element to be used as the marker for
+        folded blocks. Defaults to "CodeMirror-foldgutter-folded".

+        
rangeFinder: fn(CodeMirror, Pos)

+        
The range-finder function to use when determining whether
+        something can be folded. When not
+        given, CodeMirror.fold.auto
+        will be used as default.

+      

+      The foldOptions editor option can be set to an
+      object to provide an editor-wide default configuration.
+      Demo here.

+
+      
runmode/runmode.js

+      
Can be used to run a CodeMirror mode over text without
+      actually opening an editor instance.
+      See the demo for an example.
+      There are alternate versions of the file available for
+      running stand-alone
+      (without including all of CodeMirror) and
+      for running under
+      node.js (see bin/source-highlight for an example of using the latter).

+
+      
runmode/colorize.js

+      
Provides a convenient way to syntax-highlight code snippets
+      in a webpage. Depends on
+      the runmode addon (or
+      its standalone variant). Provides
+      a CodeMirror.colorize function that can be called
+      with an array (or other array-ish collection) of DOM nodes that
+      represent the code snippets. By default, it'll get
+      all pre tags. Will read the data-lang
+      attribute of these nodes to figure out their language, and
+      syntax-color their content using the relevant CodeMirror mode
+      (you'll have to load the scripts for the relevant modes
+      yourself). A second argument may be provided to give a default
+      mode, used when no language attribute is found for a node. Used
+      in this manual to highlight example code.

+
+      
mode/overlay.js

+      
Mode combinator that can be used to extend a mode with an
+      'overlay' — a secondary mode is run over the stream, along with
+      the base mode, and can color specific pieces of text without
+      interfering with the base mode.
+      Defines CodeMirror.overlayMode, which is used to
+      create such a mode. See this
+      demo for a detailed example.

+
+      
mode/multiplex.js

+      
Mode combinator that can be used to easily 'multiplex'
+      between several modes.
+      Defines CodeMirror.multiplexingMode which, when
+      given as first argument a mode object, and as other arguments
+      any number of {open, close, mode [, delimStyle, innerStyle, parseDelimiters]}
+      objects, will return a mode object that starts parsing using the
+      mode passed as first argument, but will switch to another mode
+      as soon as it encounters a string that occurs in one of
+      the open fields of the passed objects. When in a
+      sub-mode, it will go back to the top mode again when
+      the close string is encountered.
+      Pass "\n" for open or close
+      if you want to switch on a blank line.
+      
  • When delimStyle is specified, it will be the token
+      style returned for the delimiter tokens (as well as
+      [delimStyle]-open on the opening token and
+      [delimStyle]-close on the closing token).
    • 
+      
  • When innerStyle is specified, it will be the token
+      style added for each inner mode token.
    • 
+      
  • When parseDelimiters is true, the content of
+      the delimiters will also be passed to the inner mode.
+      (And delimStyle is ignored.)
 The outer
+      mode will not see the content between the delimiters.
+      See this demo for an
+      example.

+
+      
hint/show-hint.js

+      
Provides a framework for showing autocompletion hints.
+      Defines editor.showHint, which takes an optional
+      options object, and pops up a widget that allows the user to
+      select a completion. Finding hints is done with a hinting
+      functions (the hint option), which is a function
+      that take an editor instance and options object, and return
+      a {list, from, to} object, where list
+      is an array of strings or objects (the completions),
+      and from and to give the start and end
+      of the token that is being completed as {line, ch}
+      objects. An optional selectedHint property (an
+      integer) can be added to the completion object to control the
+      initially selected hint.

+      
If no hinting function is given, the addon will
+      use CodeMirror.hint.auto, which
+      calls getHelpers with
+      the "hint" type to find applicable hinting
+      functions, and tries them one by one. If that fails, it looks
+      for a "hintWords" helper to fetch a list of
+      completable words for the mode, and
+      uses CodeMirror.hint.fromList to complete from
+      those.

+      
When completions aren't simple strings, they should be
+      objects with the following properties:
+      

+        
text: string

+        
The completion text. This is the only required
+        property.

+        
displayText: string

+        
The text that should be displayed in the menu.

+        
className: string

+        
A CSS class name to apply to the completion's line in the
+        menu.

+        
render: fn(Element, self, data)

+        
A method used to create the DOM structure for showing the
+        completion by appending it to its first argument.

+        
hint: fn(CodeMirror, self, data)

+        
A method used to actually apply the completion, instead of
+        the default behavior.

+        
from: {line, ch}

+        
Optional from position that will be used by pick() instead
+        of the global one passed with the full list of completions.

+        
to: {line, ch}

+        
Optional to position that will be used by pick() instead
+        of the global one passed with the full list of completions.

+      

+
+      
The plugin understands the following options (the options object
+      will also be passed along to the hinting function, which may
+      understand additional options):
+      

+        
hint: function

+        
A hinting function, as specified above. It is possible to
+        set the async property on a hinting function to
+        true, in which case it will be called with
+        arguments (cm, callback, ?options), and the
+        completion interface will only be popped up when the hinting
+        function calls the callback, passing it the object holding the
+        completions.
+        The hinting function can also return a promise, and the completion
+        interface will only be popped when the promise resolves.
+        By default, hinting only works when there is no
+        selection. You can give a hinting function
+        a supportsSelection property with a truthy value
+        to indicate that it supports selections.

+        
completeSingle: boolean

+        
Determines whether, when only a single completion is
+        available, it is completed without showing the dialog.
+        Defaults to true.

+        
alignWithWord: boolean

+        
Whether the pop-up should be horizontally aligned with the
+        start of the word (true, default), or with the cursor (false).

+        
closeOnUnfocus: boolean

+        
When enabled (which is the default), the pop-up will close
+        when the editor is unfocused.

+        
customKeys: keymap

+        
Allows you to provide a custom key map of keys to be active
+        when the pop-up is active. The handlers will be called with an
+        extra argument, a handle to the completion menu, which
+        has moveFocus(n), setFocus(n), pick(),
+        and close() methods (see the source for details),
+        that can be used to change the focused element, pick the
+        current element or close the menu. Additionally menuSize()
+        can give you access to the size of the current dropdown menu,
+        length give you the number of available completions, and
+        data give you full access to the completion returned by the
+        hinting function.

+        
extraKeys: keymap

+        
Like customKeys above, but the bindings will
+        be added to the set of default bindings, instead of replacing
+        them.

+      

+      The following events will be fired on the completions object
+      during completion:
+      

+        
"shown" ()

+        
Fired when the pop-up is shown.

+        
"select" (completion, Element)

+        
Fired when a completion is selected. Passed the completion
+        value (string or object) and the DOM node that represents it
+        in the menu.

+        
"pick" (completion)

+        
Fired when a completion is picked. Passed the completion value
+        (string or object).

+        
"close" ()

+        
Fired when the completion is finished.

+      

+      This addon depends on styles
+      from addon/hint/show-hint.css. Check
+      out the demo for an
+      example.

+
+      
hint/javascript-hint.js

+      
Defines a simple hinting function for JavaScript
+      (CodeMirror.hint.javascript) and CoffeeScript
+      (CodeMirror.hint.coffeescript) code. This will
+      simply use the JavaScript environment that the editor runs in as
+      a source of information about objects and their properties.

+
+      
hint/xml-hint.js

+      
Defines CodeMirror.hint.xml, which produces
+      hints for XML tagnames, attribute names, and attribute values,
+      guided by a schemaInfo option (a property of the
+      second argument passed to the hinting function, or the third
+      argument passed to CodeMirror.showHint).
The
+      schema info should be an object mapping tag names to information
+      about these tags, with optionally a "!top" property
+      containing a list of the names of valid top-level tags. The
+      values of the properties should be objects with optional
+      properties children (an array of valid child
+      element names, omit to simply allow all tags to appear)
+      and attrs (an object mapping attribute names
+      to null for free-form attributes, and an array of
+      valid values for restricted
+      attributes). Demo
+      here.

+
+      
hint/html-hint.js

+      
Provides schema info to
+      the xml-hint addon for HTML
+      documents. Defines a schema
+      object CodeMirror.htmlSchema that you can pass to
+      as a schemaInfo option, and
+      a CodeMirror.hint.html hinting function that
+      automatically calls CodeMirror.hint.xml with this
+      schema data. See
+      the demo.

+
+      
hint/css-hint.js

+      
A hinting function for CSS, SCSS, or LESS code.
+      Defines CodeMirror.hint.css.

+
+      
hint/anyword-hint.js

+      
A very simple hinting function
+      (CodeMirror.hint.anyword) that simply looks for
+      words in the nearby code and completes to those. Takes two
+      optional options, word, a regular expression that
+      matches words (sequences of one or more character),
+      and range, which defines how many lines the addon
+      should scan when completing (defaults to 500).

+
+      
hint/sql-hint.js

+      
A simple SQL hinter. Defines CodeMirror.hint.sql.
+      Takes two optional options, tables, a object with
+      table names as keys and array of respective column names as values,
+      and defaultTable, a string corresponding to a
+      table name in tables for autocompletion.

+
+      
search/match-highlighter.js

+      
Adds a highlightSelectionMatches option that
+      can be enabled to highlight all instances of a currently
+      selected word. Can be set either to true or to an object
+      containing the following options: minChars, for the
+      minimum amount of selected characters that triggers a highlight
+      (default 2), style, for the style to be used to
+      highlight the matches (default "matchhighlight",
+      which will correspond to CSS
+      class cm-matchhighlight), trim, which
+      controls whether whitespace is trimmed from the selection,
+      and showToken which can be set to true
+      or to a regexp matching the characters that make up a word. When
+      enabled, it causes the current word to be highlighted when
+      nothing is selected (defaults to off).
+      Demo here.

+
+      
lint/lint.js

+      
Defines an interface component for showing linting warnings,
+      with pluggable warning sources
+      (see html-lint.js,
+      json-lint.js,
+      javascript-lint.js,
+      coffeescript-lint.js,
+      and css-lint.js
+      in the same directory). Defines a lint option that
+      can be set to an annotation source (for
+      example CodeMirror.lint.javascript), to an options
+      object (in which case the getAnnotations field is
+      used as annotation source), or simply to true. When
+      no annotation source is
+      specified, getHelper with
+      type "lint" is used to find an annotation function.
+      An annotation source function should, when given a document
+      string, an options object, and an editor instance, return an
+      array of {message, severity, from, to} objects
+      representing problems. When the function has
+      an async property with a truthy value, it will be
+      called with an additional second argument, which is a callback
+      to pass the array to.
+      The linting function can also return a promise, in that case the linter
+      will only be executed when the promise resolves.
+      By default, the linter will run (debounced) whenever the document is changed.
+      You can pass a lintOnChange: false option to disable that.
+      Depends on addon/lint/lint.css. A demo can be
+      found here.

+
+      
selection/mark-selection.js

+      
Causes the selected text to be marked with the CSS class
+      CodeMirror-selectedtext when the styleSelectedText option
+      is enabled. Useful to change the colour of the selection (in addition to the background),
+      like in this demo.

+
+      
selection/active-line.js

+      
Defines a styleActiveLine option that, when
+      enabled, gives the wrapper of the line that contains the cursor
+      the class CodeMirror-activeline, adds a background
+      with the class CodeMirror-activeline-background,
+      and adds the class CodeMirror-activeline-gutter to
+      the line's gutter space is enabled. The option's value may be a
+      boolean or an object specifying the following options:
+        

+          
nonEmpty: bool

+          
Controls whether single-line selections, or just cursor
+          selections, are styled. Defaults to false (only cursor
+          selections).

+        

+      See the demo.

+
+      
selection/selection-pointer.js

+      
Defines a selectionPointer option which you can
+      use to control the mouse cursor appearance when hovering over
+      the selection. It can be set to a string,
+      like "pointer", or to true, in which case
+      the "default" (arrow) cursor will be used. You can
+      see a demo here.

+
+      
mode/loadmode.js

+      
Defines a CodeMirror.requireMode(modename,
+      callback) function that will try to load a given mode and
+      call the callback when it succeeded. You'll have to
+      set CodeMirror.modeURL to a string that mode paths
+      can be constructed from, for
+      example "mode/%N/%N.js"—the %N's will
+      be replaced with the mode name. Also
+      defines CodeMirror.autoLoadMode(instance, mode),
+      which will ensure the given mode is loaded and cause the given
+      editor instance to refresh its mode when the loading
+      succeeded. See the demo.

+
+      
mode/meta.js

+      
Provides meta-information about all the modes in the
+      distribution in a single file.
+      Defines CodeMirror.modeInfo, an array of objects
+      with {name, mime, mode} properties,
+      where name is the human-readable
+      name, mime the MIME type, and mode the
+      name of the mode file that defines this MIME. There are optional
+      properties mimes, which holds an array of MIME
+      types for modes with multiple MIMEs associated,
+      and ext, which holds an array of file extensions
+      associated with this mode. Four convenience
+      functions, CodeMirror.findModeByMIME,
+      CodeMirror.findModeByExtension,
+      CodeMirror.findModeByFileName
+      and CodeMirror.findModeByName are provided, which
+      return such an object given a MIME, extension, file name or mode name
+      string. Note that, for historical reasons, this file resides in the
+      top-level mode directory, not
+      under addon. Demo.

+
+      
comment/continuecomment.js

+      
Adds a continueComments option, which sets whether the
+      editor will make the next line continue a comment when you press Enter
+      inside a comment block. Can be set to a boolean to enable/disable this
+      functionality. Set to a string, it will continue comments using a custom
+      shortcut. Set to an object, it will use the key property for
+      a custom shortcut and the boolean continueLineComment
+      property to determine whether single-line comments should be continued
+      (defaulting to true).

+
+      
display/placeholder.js

+      
Adds a placeholder option that can be used to
+      make content appear in the editor when it is empty and not
+      focused. It can hold either a string or a DOM node. Also gives
+      the editor a CodeMirror-empty CSS class whenever it
+      doesn't contain any text.
+      See the demo.

+
+      
display/fullscreen.js

+      
Defines an option fullScreen that, when set
+      to true, will make the editor full-screen (as in,
+      taking up the whole browser window). Depends
+      on fullscreen.css. Demo
+      here.

+
+      
display/autorefresh.js

+      
This addon can be useful when initializing an editor in a
+      hidden DOM node, in cases where it is difficult to
+      call refresh when the editor
+      becomes visible. It defines an option autoRefresh
+      which you can set to true to ensure that, if the editor wasn't
+      visible on initialization, it will be refreshed the first time
+      it becomes visible. This is done by polling every 250
+      milliseconds (you can pass a value like {delay:
+      500} as the option value to configure this). Note that
+      this addon will only refresh the editor once when it
+      first becomes visible, and won't take care of further restyling
+      and resizing.

+
+      
scroll/simplescrollbars.js

+      
Defines two additional scrollbar
+      models, "simple" and "overlay"
+      (see demo) that can
+      be selected with
+      the scrollbarStyle
+      option. Depends
+      on simplescrollbars.css,
+      which can be further overridden to style your own
+      scrollbars.

+
+      
scroll/annotatescrollbar.js

+      
Provides functionality for showing markers on the scrollbar
+      to call out certain parts of the document. Adds a
+      method annotateScrollbar to editor instances that
+      can be called, with a CSS class name as argument, to create a
+      set of annotations. The method returns an object
+      whose update method can be called with a sorted array
+      of {from: Pos, to: Pos} objects marking the ranges
+      to be highlighted. To detach the annotations, call the
+      object's clear method.

+
+      
display/rulers.js

+      
Adds a rulers option, which can be used to show
+      one or more vertical rulers in the editor. The option, if
+      defined, should be given an array of {column [, className,
+      color, lineStyle, width]} objects or numbers (which
+      indicate a column). The ruler will be displayed at the column
+      indicated by the number or the column property.
+      The className property can be used to assign a
+      custom style to a ruler. Demo
+      here.

+
+      
display/panel.js

+      
Defines an addPanel method for CodeMirror
+      instances, which places a DOM node above or below an editor, and
+      shrinks the editor to make room for the node. The method takes
+      as first argument as DOM node, and as second an optional options
+      object. The Panel object returned by this method
+      has a clear method that is used to remove the
+      panel, and a changed method that can be used to
+      notify the addon when the size of the panel's DOM node has
+      changed.

+      The method accepts the following options:
+      

+        
position: string

+        
Controls the position of the newly added panel. The
+        following values are recognized:
+          

+            
top (default)

+            
Adds the panel at the very top.

+            
after-top

+            
Adds the panel at the bottom of the top panels.

+            
bottom

+            
Adds the panel at the very bottom.

+            
before-bottom

+            
Adds the panel at the top of the bottom panels.

+          

+        

+        
before: Panel

+        
The new panel will be added before the given panel.

+        
after: Panel

+        
The new panel will be added after the given panel.

+        
replace: Panel

+        
The new panel will replace the given panel.

+        
stable: bool

+        
Whether to scroll the editor to keep the text's vertical
+        position stable, when adding a panel above it. Defaults to false.

+      

+      When using the after, before or replace options,
+      if the panel doesn't exists or has been removed,
+      the value of the position option will be used as a fallback.
+      

+      A demo of the addon is available here.
+      

+
+      
wrap/hardwrap.js

+      
Addon to perform hard line wrapping/breaking for paragraphs
+      of text. Adds these methods to editor instances:
+        

+          
wrapParagraph(?pos: {line, ch}, ?options: object)

+          
Wraps the paragraph at the given position.
+          If pos is not given, it defaults to the cursor
+          position.

+          
wrapRange(from: {line, ch}, to: {line, ch}, ?options: object)

+          
Wraps the given range as one big paragraph.

+          
wrapParagraphsInRange(from: {line, ch}, to: {line, ch}, ?options: object)

+          
Wraps the paragraphs in (and overlapping with) the
+          given range individually.

+        

+        The following options are recognized:
+        

+          
paragraphStart, paragraphEnd: RegExp

+          
Blank lines are always considered paragraph boundaries.
+          These options can be used to specify a pattern that causes
+          lines to be considered the start or end of a paragraph.

+          
column: number

+          
The column to wrap at. Defaults to 80.

+          
wrapOn: RegExp

+          
A regular expression that matches only those
+          two-character strings that allow wrapping. By default, the
+          addon wraps on whitespace and after dash characters.

+          
killTrailingSpace: boolean

+          
Whether trailing space caused by wrapping should be
+          preserved, or deleted. Defaults to true.

+        

+        A demo of the addon is available here.
+      

+
+      
merge/merge.js

+      
Implements an interface for merging changes, using either a
+      2-way or a 3-way view. The CodeMirror.MergeView
+      constructor takes arguments similar to
+      the CodeMirror
+      constructor, first a node to append the interface to, and then
+      an options object. Options are passed through to the editors
+      inside the view. These extra options are recognized:
+        

+          
origLeft and origRight: string

+          
If given these provide original versions of the
+          document, which will be shown to the left and right of the
+          editor in non-editable CodeMirror instances. The merge
+          interface will highlight changes between the editable
+          document and the original(s). To create a 2-way (as opposed
+          to 3-way) merge view, provide only one of them.

+          
revertButtons: boolean

+          
Determines whether buttons that allow the user to revert
+          changes are shown. Defaults to true.

+          
revertChunk: fn(mv: MergeView, from: CodeMirror, fromStart: Pos, fromEnd: Pos, to: CodeMirror, toStart: Pos, toEnd: Pos)

+          
Can be used to define custom behavior when the user
+          reverts a changed chunk.

+          
connect: string

+          
Sets the style used to connect changed chunks of code.
+          By default, connectors are drawn. When this is set
+          to "align", the smaller chunk is padded to
+          align with the bigger chunk instead.

+          
collapseIdentical: boolean|number

+          
When true (default is false), stretches of unchanged
+          text will be collapsed. When a number is given, this
+          indicates the amount of lines to leave visible around such
+          stretches (which defaults to 2).

+          
allowEditingOriginals: boolean

+          
Determines whether the original editor allows editing.
+          Defaults to false.

+          
showDifferences: boolean

+          
When true (the default), changed pieces of text are
+          highlighted.

+          
chunkClassLocation: string|Array

+          
By default the chunk highlights are added
+          using addLineClass
+          with "background". Override this to customize it to be any
+          valid `where` parameter or an Array of valid `where`
+          parameters.

+        

+        The addon also defines commands "goNextDiff"
+        and "goPrevDiff" to quickly jump to the next
+        changed chunk. Demo
+        here.

+
+      
tern/tern.js

+      
Provides integration with
+      the Tern JavaScript analysis
+      engine, for completion, definition finding, and minor
+      refactoring help. See the demo
+      for a very simple integration. For more involved scenarios, see
+      the comments at the top of
+      the addon and the
+      implementation of the
+      (multi-file) demonstration
+      on the Tern website.

+    

+

+
+

+    
Writing CodeMirror Modes

+
+    
Modes typically consist of a single JavaScript file. This file
+    defines, in the simplest case, a lexer (tokenizer) for your
+    language—a function that takes a character stream as input,
+    advances it past a token, and returns a style for that token. More
+    advanced modes can also handle indentation for the language.

+
+    
This section describes the low-level mode interface. Many modes
+    are written directly against this, since it offers a lot of
+    control, but for a quick mode definition, you might want to use
+    the simple mode addon.

+
+    
The mode script should
+    call CodeMirror.defineMode to
+    register itself with CodeMirror. This function takes two
+    arguments. The first should be the name of the mode, for which you
+    should use a lowercase string, preferably one that is also the
+    name of the files that define the mode (i.e. "xml" is
+    defined in xml.js). The second argument should be a
+    function that, given a CodeMirror configuration object (the thing
+    passed to the CodeMirror function) and an optional
+    mode configuration object (as in
+    the mode option), returns
+    a mode object.

+
+    
Typically, you should use this second argument
+    to defineMode as your module scope function (modes
+    should not leak anything into the global scope!), i.e. write your
+    whole mode inside this function.

+
+    
The main responsibility of a mode script is parsing
+    the content of the editor. Depending on the language and the
+    amount of functionality desired, this can be done in really easy
+    or extremely complicated ways. Some parsers can be stateless,
+    meaning that they look at one element (token) of the code
+    at a time, with no memory of what came before. Most, however, will
+    need to remember something. This is done by using a state
+    object, which is an object that is always passed when
+    reading a token, and which can be mutated by the tokenizer.

+
+    
Modes that use a state must define
+    a startState method on their mode
+    object. This is a function of no arguments that produces a state
+    object to be used at the start of a document.

+
+    
The most important part of a mode object is
+    its token(stream, state) method. All
+    modes must define this method. It should read one token from the
+    stream it is given as an argument, optionally update its state,
+    and return a style string, or null for tokens that do
+    not have to be styled. For your styles, you are encouraged to use
+    the 'standard' names defined in the themes (without
+    the cm- prefix). If that fails, it is also possible
+    to come up with your own and write your own CSS theme file.

+
+    
A typical token string would
+    be "variable" or "comment". Multiple
+    styles can be returned (separated by spaces), for
+    example "string error" for a thing that looks like a
+    string but is invalid somehow (say, missing its closing quote).
+    When a style is prefixed by "line-"
+    or "line-background-", the style will be applied to
+    the whole line, analogous to what
+    the addLineClass method
+    does—styling the "text" in the simple case, and
+    the "background" element
+    when "line-background-" is prefixed.

+
+    
The stream object that's passed
+    to token encapsulates a line of code (tokens may
+    never span lines) and our current position in that line. It has
+    the following API:

+
+    

+      
eol() → boolean

+      
Returns true only if the stream is at the end of the
+      line.

+      
sol() → boolean

+      
Returns true only if the stream is at the start of the
+      line.

+
+      
peek() → string

+      
Returns the next character in the stream without advancing
+      it. Will return a null at the end of the
+      line.

+      
next() → string

+      
Returns the next character in the stream and advances it.
+      Also returns null when no more characters are
+      available.

+
+      
eat(match: string|regexp|function(char: string) → boolean) → string

+      
match can be a character, a regular expression,
+      or a function that takes a character and returns a boolean. If
+      the next character in the stream 'matches' the given argument,
+      it is consumed and returned. Otherwise, undefined
+      is returned.

+      
eatWhile(match: string|regexp|function(char: string) → boolean) → boolean

+      
Repeatedly calls eat with the given argument,
+      until it fails. Returns true if any characters were eaten.

+      
eatSpace() → boolean

+      
Shortcut for eatWhile when matching
+      white-space.

+      
skipToEnd()

+      
Moves the position to the end of the line.

+      
skipTo(str: string) → boolean

+      
Skips to the start of the next occurrence of the given string, if
+      found on the current line (doesn't advance the stream if the
+      string does not occur on the line). Returns true if the
+      string was found.

+      
match(pattern: string, ?consume: boolean, ?caseFold: boolean) → boolean

+      
match(pattern: regexp, ?consume: boolean) → array<string>

+      
Act like a
+      multi-character eat—if consume is true
+      or not given—or a look-ahead that doesn't update the stream
+      position—if it is false. pattern can be either a
+      string or a regular expression starting with ^.
+      When it is a string, caseFold can be set to true to
+      make the match case-insensitive. When successfully matching a
+      regular expression, the returned value will be the array
+      returned by match, in case you need to extract
+      matched groups.

+
+      
backUp(n: integer)

+      
Backs up the stream n characters. Backing it up
+      further than the start of the current token will cause things to
+      break, so be careful.

+      
column() → integer

+      
Returns the column (taking into account tabs) at which the
+      current token starts.

+      
indentation() → integer

+      
Tells you how far the current line has been indented, in
+      spaces. Corrects for tab characters.

+
+      
current() → string

+      
Get the string between the start of the current token and
+      the current stream position.

+    

+
+    
By default, blank lines are simply skipped when
+    tokenizing a document. For languages that have significant blank
+    lines, you can define
+    a blankLine(state) method on your
+    mode that will get called whenever a blank line is passed over, so
+    that it can update the parser state.

+
+    
Because state object are mutated, and CodeMirror
+    needs to keep valid versions of a state around so that it can
+    restart a parse at any line, copies must be made of state objects.
+    The default algorithm used is that a new state object is created,
+    which gets all the properties of the old object. Any properties
+    which hold arrays get a copy of these arrays (since arrays tend to
+    be used as mutable stacks). When this is not correct, for example
+    because a mode mutates non-array properties of its state object, a
+    mode object should define
+    a copyState method, which is given a
+    state and should return a safe copy of that state.

+
+    
If you want your mode to provide smart indentation
+    (through the indentLine
+    method and the indentAuto
+    and newlineAndIndent commands, to which keys can be
+    bound), you must define
+    an indent(state, textAfter) method
+    on your mode object.

+
+    
The indentation method should inspect the given state object,
+    and optionally the textAfter string, which contains
+    the text on the line that is being indented, and return an
+    integer, the amount of spaces to indent. It should usually take
+    the indentUnit
+    option into account. An indentation method may
+    return CodeMirror.Pass to indicate that it
+    could not come up with a precise indentation.

+
+    
To work well with
+    the commenting addon, a mode may
+    define lineComment (string that
+    starts a line
+    comment), blockCommentStart, blockCommentEnd
+    (strings that start and end block comments),
+    and blockCommentLead (a string to put at the start of
+    continued lines in a block comment). All of these are
+    optional.

+
+    
Finally, a mode may define either
+    an electricChars or an electricInput
+    property, which are used to automatically reindent the line when
+    certain patterns are typed and
+    the electricChars
+    option is enabled. electricChars may be a string, and
+    will trigger a reindent whenever one of the characters in that
+    string are typed. Often, it is more appropriate to
+    use electricInput, which should hold a regular
+    expression, and will trigger indentation when the part of the
+    line before the cursor matches the expression. It should
+    usually end with a $ character, so that it only
+    matches when the indentation-changing pattern was just typed, not when something was
+    typed after the pattern.

+
+    
So, to summarize, a mode must provide
+    a token method, and it may
+    provide startState, copyState,
+    and indent methods. For an example of a trivial mode,
+    see the diff mode, for a more
+    involved example, see the C-like
+    mode.

+
+    
Sometimes, it is useful for modes to nest—to have one
+    mode delegate work to another mode. An example of this kind of
+    mode is the mixed-mode HTML
+    mode. To implement such nesting, it is usually necessary to
+    create mode objects and copy states yourself. To create a mode
+    object, there are CodeMirror.getMode(options,
+    parserConfig), where the first argument is a configuration
+    object as passed to the mode constructor function, and the second
+    argument is a mode specification as in
+    the mode option. To copy a
+    state object, call CodeMirror.copyState(mode, state),
+    where mode is the mode that created the given
+    state.

+
+    
In a nested mode, it is recommended to add an
+    extra method, innerMode which, given
+    a state object, returns a {state, mode} object with
+    the inner mode and its state for the current position. These are
+    used by utility scripts such as the tag
+    closer to get context information. Use
+    the CodeMirror.innerMode helper function to, starting
+    from a mode and a state, recursively walk down to the innermost
+    mode and state.

+
+    
To make indentation work properly in a nested parser, it is
+    advisable to give the startState method of modes that
+    are intended to be nested an optional argument that provides the
+    base indentation for the block of code. The JavaScript and CSS
+    parser do this, for example, to allow JavaScript and CSS code
+    inside the mixed-mode HTML mode to be properly indented.

+
+    
It is possible, and encouraged, to associate
+    your mode, or a certain configuration of your mode, with
+    a MIME type. For
+    example, the JavaScript mode associates itself
+    with text/javascript, and its JSON variant
+    with application/json. To do this,
+    call CodeMirror.defineMIME(mime,
+    modeSpec), where modeSpec can be a string or
+    object specifying a mode, as in
+    the mode option.

+
+    
If a mode specification wants to add some properties to the
+    resulting mode object, typically for use
+    with getHelpers, it may
+    contain a modeProps property, which holds an object.
+    This object's properties will be copied to the actual mode
+    object.

+
+    
Sometimes, it is useful to add or override mode
+    object properties from external code.
+    The CodeMirror.extendMode function
+    can be used to add properties to mode objects produced for a
+    specific mode. Its first argument is the name of the mode, its
+    second an object that specifies the properties that should be
+    added. This is mostly useful to add utilities that can later be
+    looked up through getMode.

+

+
+

+    
VIM Mode API

+
+    
CodeMirror has a robust VIM mode that attempts to faithfully
+    emulate VIM's most useful features. It can be enabled by
+    including keymap/vim.js
+     and setting the keyMap option to
+    "vim".

+
+    
Configuration

+
+    
VIM mode accepts configuration options for customizing
+    behavior at run time. These methods can be called at any time
+    and will affect all existing CodeMirror instances unless
+    specified otherwise. The methods are exposed on the
+    CodeMirror.Vim object.

+
+    

+      
setOption(name: string, value: any, ?cm: CodeMirror, ?cfg: object)

+      
Sets the value of a VIM option. name should
+      be the name of an option. If cfg.scope is not set
+      and cm is provided, then sets the global and
+      instance values of the option. Otherwise, sets either the
+      global or instance value of the option depending on whether
+      cfg.scope is global or
+      local.

+      
getOption(name: string, ?cm: CodeMirror: ?cfg: object)

+      
Gets the current value of a VIM option. If
+      cfg.scope is not set and cm is
+      provided, then gets the instance value of the option, falling
+      back to the global value if not set. If cfg.scope is provided, then gets the global or
+      local value without checking the other.

+
+      
map(lhs: string, rhs: string, ?context: string)

+      
Maps a key sequence to another key sequence. Implements
+      VIM's :map command. To map ; to : in VIM would be
+      :map ; :. That would translate to
+      CodeMirror.Vim.map(';', ':');.
+      The context can be normal,
+      visual, or insert, which correspond
+      to :nmap, :vmap, and
+      :imap
+      respectively.

+
+      
mapCommand(keys: string, type: string, name: string, ?args: object, ?extra: object)

+      
Maps a key sequence to a motion,
+      operator, or action type command.
+      The args object is passed through to the command when it is
+      invoked by the provided key sequence.
+      extras.context can be normal,
+      visual, or insert, to map the key
+      sequence only in the corresponding mode.
+      extras.isEdit is applicable only to actions,
+      determining whether it is recorded for replay for the
+      . single-repeat command.
+    

+
+    
Extending VIM

+
+    
CodeMirror's VIM mode implements a large subset of VIM's core
+    editing functionality. But since there's always more to be
+    desired, there is a set of APIs for extending VIM's
+    functionality. As with the configuration API, the methods are
+    exposed on CodeMirror.Vim and may
+    be called at any time.

+
+    

+      
defineOption(name: string, default: any, type: string, ?aliases: array<string>, ?callback: function (?value: any, ?cm: CodeMirror) → ?any)

+      
Defines a VIM style option and makes it available to the
+      :set command. Type can be boolean or
+      string, used for validation and by
+      :set to determine which syntax to accept. If a
+      callback is passed in, VIM does not store the value of the
+      option itself, but instead uses the callback as a setter/getter. If the
+      first argument to the callback is undefined, then the
+      callback should return the value of the option. Otherwise, it should set
+      instead. Since VIM options have global and instance values, whether a
+      CodeMirror instance is passed in denotes whether the global
+      or local value should be used. Consequently, it's possible for the
+      callback to be called twice for a single setOption or
+      getOption call. Note that right now, VIM does not support
+      defining buffer-local options that do not have global values. If an
+      option should not have a global value, either always ignore the
+      cm parameter in the callback, or always pass in a
+      cfg.scope to setOption and
+      getOption.

+
+      
defineMotion(name: string, fn: function(cm: CodeMirror, head: {line, ch}, ?motionArgs: object}) → {line, ch})

+      
Defines a motion command for VIM. The motion should return
+      the desired result position of the cursor. head
+      is the current position of the cursor. It can differ from
+      cm.getCursor('head') if VIM is in visual mode.
+      motionArgs is the object passed into
+      mapCommand().

+
+      
defineOperator(name: string, fn: function(cm: CodeMirror, ?operatorArgs: object, ranges: array<{anchor, head}>) → ?{line, ch})

+      
Defines an operator command, similar to 
+      defineMotion. ranges is the range
+      of text the operator should operate on. If the cursor should
+      be set to a certain position after the operation finishes, it
+      can return a cursor object.

+
+      
defineAction(name: string, fn: function(cm: CodeMirror, ?actionArgs: object))

+      
Defines an action command, similar to
+      defineMotion. Action commands
+      can have arbitrary behavior, making them more flexible than
+      motions and operators, at the loss of orthogonality.

+
+      
defineEx(name: string, ?prefix: string, fn: function(cm: CodeMirror, ?params: object))

+      
Defines an Ex command, and maps it to :name.
+      If a prefix is provided, it, and any prefixed substring of the
+      name beginning with the prefix can
+      be used to invoke the command. If the prefix is
+      falsy, then name is used as the prefix. 
+      params.argString contains the part of the prompted
+      string after the command name. params.args is
+      params.argString split by whitespace. If the
+      command was prefixed with a
+      line range,
+      params.line and params.lineEnd will
+      be set.
+    

+
+

+
+

+
+
diff --git a/public/codemirror/doc/realworld.html b/public/codemirror/doc/realworld.html
new file mode 100644
index 000000000..c60597e07
--- /dev/null
+++ b/public/codemirror/doc/realworld.html
@@ -0,0 +1,192 @@
+
+
+CodeMirror: Real-world Uses
+
+
+
+
+
+

+
+
CodeMirror real-world uses

+
+    
Create a pull
+    request if you'd like your project to be added to this list.

+
+    
+
+

+
diff --git a/public/codemirror/doc/releases.html b/public/codemirror/doc/releases.html
new file mode 100644
index 000000000..681876c46
--- /dev/null
+++ b/public/codemirror/doc/releases.html
@@ -0,0 +1,1436 @@
+
+
+CodeMirror: Release History
+
+
+
+
+
+
+

+
+
Release notes and version history

+
+

+
+  
Version 5.x

+
+  
20-03-2017: Version 5.25.0:

+
+  
    
+    
  • In contentEditable-mode, properly locate changes that repeat a character when inserted with IME.
    • 
+    
  • Fix handling of selections bigger than the viewport in contentEditable mode.
    • 
+    
  • Improve handling of changes that insert or delete lines in contentEditable mode.
    • 
+    
  • Count Unicode control characters 0x80 to 0x9F as special (non-printing) chars.
    • 
+    
  • Fix handling of shadow DOM roots when finding the active element.
    • 
+    
  • Add role=presentation to more DOM elements to improve screen reader support.
    • 
+    
  • merge addon: Make aligning of unchanged chunks more robust.
    • 
+    
  • comment addon: Fix comment-toggling on a block of text that starts and ends in a (differnet) block comment.
    • 
+    
  • javascript mode: Improve support for TypeScript syntax.
    • 
+    
  • r mode: Fix indentation after semicolon-less statements.
    • 
+    
  • shell mode: Properly handle escaped parentheses in parenthesized expressions.
    • 
+    
  • markdown mode: Fix a few bugs around leaving fenced code blocks.
    • 
+    
  • soy mode: Improve indentation.
    • 
+    
  • lint addon: Support asynchronous linters that return promises.
    • 
+    
  • continuelist addon: Support continuing task lists.
    • 
+    
  • vim bindings: Make Y behave like yy.
    • 
+    
  • sql mode: Support sqlite dialect.
    • 
+  

+
+  
22-02-2017: Version 5.24.2:

+
+  
    
+    
  • javascript mode: Support computed class method names.
    • 
+    
  • merge addon: Improve aligning of unchanged code in the presence of marks and line widgets.
    • 
+  

+
+  
20-02-2017: Version 5.24.0:

+
+  
    
+    
  • Positions now support a sticky property which determines whether they should be associated with the character before (value "before") or after (value "after") them.
    • 
+    
  • vim bindings: Make it possible to remove built-in bindings through the API.
    • 
+    
  • comment addon: Support a per-mode useInnerComments option to optionally suppress descending to the inner modes to get comment strings.
    • 
+    
  • A cursor directly before a line-wrapping break is now drawn before or after the line break depending on which direction you arrived from.
    • 
+    
  • Visual cursor motion in line-wrapped right-to-left text should be much more correct.
    • 
+    
  • Fix bug in handling of read-only marked text.
    • 
+    
  • shell mode: Properly tokenize nested parentheses.
    • 
+    
  • python mode: Support underscores in number literals.
    • 
+    
  • sass mode: Uses the full list of CSS properties and keywords from the CSS mode, rather than defining its own incomplete subset. Now depends on the css mode.
    • 
+    
  • css mode: Expose lineComment property for LESS and SCSS dialects. Recognize vendor prefixes on pseudo-elements.
    • 
+    
  • julia mode: Properly indent elseif lines.
    • 
+    
  • markdown mode: Properly recognize the end of fenced code blocks when inside other markup.
    • 
+    
  • scala mode: Improve handling of operators containing #, @, and : chars.
    • 
+    
  • xml mode: Allow dashes in HTML tag names.
    • 
+    
  • javascript mode: Improve parsing of async methods, TypeScript-style comma-separated superclass lists.
    • 
+    
  • indent-fold addon: Ignore comment lines.
    • 
+  

+
+  
19-01-2017: Version 5.23.0:

+
+  
    
+    
  • Presentation-related elements DOM elements are now marked as such to help screen readers.
    • 
+    
  • markdown mode: Be more picky about what HTML tags look like to avoid false positives.
    • 
+    
  • findModeByMIME now understands +json and +xml MIME suffixes.
    • 
+    
  • closebrackets addon: Add support for an override option to ignore language-specific defaults.
    • 
+    
  • panel addon: Add a stable option that auto-scrolls the content to keep it in the same place when inserting/removing a panel.
    • 
+  

+
+  
20-12-2016: Version 5.22.0:

+
+  
    
+    
  • sublime bindings: Make selectBetweenBrackets work with multiple cursors.
    • 
+    
  • javascript mode: Fix issues with parsing complex TypeScript types, imports, and exports.
    • 
+    
  • A contentEditable editor instance with autofocus enabled no longer crashes during initializing.
    • 
+    
  • emacs bindings: Export CodeMirror.emacs to allow other addons to hook into Emacs-style functionality.
    • 
+    
  • active-line addon: Add nonEmpty option.
    • 
+    
  • New event: optionChange.
    • 
+  

+
+  
21-11-2016: Version 5.21.0:

+
+  
    
+    
  • Tapping/clicking the editor in contentEditable mode on Chrome now puts the cursor at the tapped position.
    • 
+    
  • Fix various crashes and misbehaviors when reading composition events in contentEditable mode.
    • 
+    
  • Catches and ignores an IE 'Unspecified Error' when creating an editor in an iframe before there is a <body>.
    • 
+    
  • merge addon: Fix several issues in the chunk-aligning feature.
    • 
+    
  • verilog mode: Rewritten to address various issues.
    • 
+    
  • julia mode: Recognize Julia 0.5 syntax.
    • 
+    
  • swift mode: Various fixes and adjustments to current syntax.
    • 
+    
  • markdown mode: Allow lists without a blank line above them.
    • 
+    
  • The setGutterMarker, clearGutter, and lineInfo methods are now available on Doc objects.
    • 
+    
  • The heightAtLine method now takes an extra argument to allow finding the height at the top of the line's line widgets.
    • 
+    
  • ruby mode: else and elsif are now immediately indented.
    • 
+    
  • vim bindings: Bind Ctrl-T and Ctrl-D to in- and dedent in insert mode.
    • 
+  

+
+  
20-10-2016: Version 5.20.0:

+
+  
    
+    
  • Make newlineAndIndent command work with multiple cursors on the same line.
    • 
+    
  • Make sure keypress events for backspace are ignored.
    • 
+    
  • Tokens styled with overlays no longer get a nonsense cm-cm-overlay class.
    • 
+    
  • Line endings for pasted content are now normalized to the editor's preferred ending.
    • 
+    
  • javascript mode: Improve support for class expressions. Support TypeScript optional class properties, the abstract keyword, and return type declarations for arrow functions.
    • 
+    
  • css mode: Fix highlighting of mixed-case keywords.
    • 
+    
  • closebrackets addon: Improve behavior when typing a quote before a string.
    • 
+    
  • The core is now maintained as a number of small files, using ES6 syntax and modules, under the src/ directory. A git checkout no longer contains a working codemirror.js until you npm build (but when installing from NPM, it is included).
    • 
+    
  • The refresh event is now documented and stable.
    • 
+  

+
+  
20-09-2016: Version 5.19.0:

+
+  
    
+    
  • erlang mode: Fix mode crash when trying to read an empty context.
    • 
+    
  • comment addon: Fix broken behavior when toggling comments inside a comment.
    • 
+    
  • xml-fold addon: Fix a null-dereference bug.
    • 
+    
  • Page up and page down now do something even in single-line documents.
    • 
+    
  • Fix an issue where the cursor position could be off in really long (~8000 character) tokens.
    • 
+    
  • javascript mode: Better indentation when semicolons are missing. Better support for TypeScript classes, optional parameters, and the type keyword.
    • 
+    
  • The blur and focus events now pass the DOM event to their handlers.
    • 
+  

+
+  
23-08-2016: Version 5.18.2:

+
+  
    
+    
  • vue mode: Fix outdated references to renamed Pug mode dependency.
    • 
+  

+
+  
22-08-2016: Version 5.18.0:

+
+  
    
+    
  • Make sure gutter backgrounds stick to the rest of the gutter during horizontal scrolling.
    • 
+    
  • The contenteditable inputStyle now properly supports pasting on pre-Edge IE versions.
    • 
+    
  • javascript mode: Fix some small parsing bugs and improve TypeScript support.
    • 
+    
  • matchbrackets addon: Fix bug where active highlighting was left in editor when the addon was disabled.
    • 
+    
  • match-highlighter addon: Only start highlighting things when the editor gains focus.
    • 
+    
  • javascript-hint addon: Also complete non-enumerable properties.
    • 
+    
  • The addOverlay method now supports a priority option to control the order in which overlays are applied.
    • 
+    
  • MIME types that end in +json now default to the JSON mode when the MIME itself is not defined.
    • 
+    
  • The mode formerly known as Jade was renamed to Pug.
    • 
+    
  • The Python mode now defaults to Python 3 (rather than 2) syntax.
    • 
+  

+
+  
19-07-2016: Version 5.17.0:

+
+  
    
+    
  • Fix problem with wrapped trailing whitespace displaying incorrectly.
    • 
+    
  • Prevent IME dialog from overlapping typed content in Chrome.
    • 
+    
  • Improve measuring of characters near a line wrap.
    • 
+    
  • javascript mode: Improve support for async, allow trailing commas in import lists.
    • 
+    
  • vim bindings: Fix backspace in replace mode.
    • 
+    
  • sublime bindings: Fix some key bindings on OS X to match Sublime Text.
    • 
+    
  • markdown mode: Add more classes to image links in highlight-formatting mode.
    • 
+  

+
+  
20-06-2016: Version 5.16.0:

+
+  
    
+    
  • Fix glitches when dragging content caused by the drop indicator receiving mouse events.
    • 
+    
  • Make Control-drag work on Firefox.
    • 
+    
  • Make clicking or selection-dragging at the end of a wrapped line select the right position.
    • 
+    
  • show-hint addon: Prevent widget scrollbar from hiding part of the hint text.
    • 
+    
  • rulers addon: Prevent rulers from forcing a horizontal editor scrollbar.
    • 
+    
  • search addon: Automatically bind search-related keys in persistent dialog.
    • 
+    
  • sublime keymap: Add a multi-cursor aware smart backspace binding.
    • 
+  

+
+  
20-05-2016: Version 5.15.2:

+
+  
    
+    
  • Fix a critical document corruption bug that occurs when a document is gradually grown.
    • 
+  

+
+  
20-05-2016: Version 5.15.0:

+
+  
    
+    
  • Fix bug that caused the selection to reset when focusing the editor in contentEditable input mode.
    • 
+    
  • Fix issue where not all ASCII control characters were being replaced by placeholders.
    • 
+    
  • Remove the assumption that all modes have a startState method from several wrapping modes.
    • 
+    
  • Fix issue where the editor would complain about overlapping collapsed ranges when there weren't any.
    • 
+    
  • Optimize document tree building when loading or pasting huge chunks of content.
    • 
+    
  • Explicitly bind Ctrl-O on OS X to make that binding (“open line”) act as expected.
    • 
+    
  • Pasting linewise-copied content when there is no selection now inserts the lines above the current line.
    • 
+    
  • markdown mode: Fix several issues in matching link targets.
    • 
+    
  • clike mode: Improve indentation of C++ template declarations.
    • 
+    
  • javascript mode: Support async/await and improve support for TypeScript type syntax.
    • 
+  

+
+  
20-04-2016: Version 5.14.0:

+
+  
+
+  
21-03-2016: Version 5.13.2:

+
+  
    
+    
  • Solves a problem where the gutter would sometimes not extend all the way to the end of the document.
    • 
+  

+
+  
21-03-2016: Version 5.13:

+
+  
+
+  
19-02-2016: Version 5.12:

+
+  
    
+    
  • Vim bindings: Ctrl-Q is now an alias for Ctrl-V.
    • 
+    
  • Vim bindings: The Vim API now exposes an unmap method to unmap bindings.
    • 
+    
  • active-line addon: This addon can now style the active line's gutter.
    • 
+    
  • FCL mode: Newly added.
    • 
+    
  • SQL mode: Now has a Postgresql dialect.
    • 
+    
  • Fix issue where trying to scroll to a horizontal position outside of the document's width could cause the gutter to be positioned incorrectly.
    • 
+    
  • Use absolute, rather than fixed positioning in the context-menu intercept hack, to work around a problem when the editor is inside a transformed parent container.
    • 
+    
  • Solve a problem where the horizontal scrollbar could hide text in Firefox.
    • 
+    
  • Fix a bug that caused phantom scroll space under the text in some situations.
    • 
+    
  • Sublime Text bindings: Bind delete-line to Shift-Ctrl-K on OS X.
    • 
+    
  • Markdown mode: Fix issue where the mode would keep state related to fenced code blocks in an unsafe way, leading to occasional corrupted parses.
    • 
+    
  • Markdown mode: Ignore backslashes in code fragments.
    • 
+    
  • Markdown mode: Use whichever mode is registered as text/html to parse HTML.
    • 
+    
  • Clike mode: Improve indentation of Scala => functions.
    • 
+    
  • Python mode: Improve indentation of bracketed code.
    • 
+    
  • HTMLMixed mode: Support multi-line opening tags for sub-languages (<script>, <style>, etc).
    • 
+    
  • Spreadsheet mode: Fix bug where the mode did not advance the stream when finding a backslash.
    • 
+    
  • XML mode: The mode now takes a matchClosing option to configure whether mismatched closing tags should be highlighted as errors.
    • 
+  

+
+  
20-01-2016: Version 5.11:

+
+  
    
+    
  • New modes: JSX, literate Haskell
    • 
+    
  • The editor now forwards more DOM events: cut, copy, paste, and touchstart. It will also forward mousedown for drag events
    • 
+    
  • Fixes a bug where bookmarks next to collapsed spans were not rendered
    • 
+    
  • The Swift mode now supports auto-indentation
    • 
+    
  • Frontmatters in the YAML frontmatter mode are now optional as intended
    • 
+    
  • Full list of patches
    • 
+  

+
+  
21-12-2015: Version 5.10:

+
+  
+
+  
23-11-2015: Version 5.9:

+
+  
    
+    
  • Improve the way overlay (OS X-style) scrollbars are handled
    • 
+    
  • Make annotatescrollbar and scrollpastend addons work properly together
    • 
+    
  • Make show-hint addon select options on single click by default, move selection to hovered item
    • 
+    
  • Properly fold comments that include block-comment-start markers
    • 
+    
  • Many small language mode fixes
    • 
+    
  • Full list of patches
    • 
+  

+
+  
20-10-2015: Version 5.8:

+
+  
+
+  
20-09-2015: Version 5.7:

+
+  
+
+  
20-08-2015: Version 5.6:

+
+  
    
+    
  • Fix bug where you could paste into a readOnly editor
    • 
+    
  • Show a cursor at the drop location when dragging over the editor
    • 
+    
  • The Rust mode was rewritten to handle modern Rust
    • 
+    
  • The editor and theme CSS was cleaned up. Some selectors are now less specific than before
    • 
+    
  • New theme: abcdef
    • 
+    
  • Lines longer than maxHighlightLength are now less likely to mess up indentation
    • 
+    
  • New addons: autorefresh for refreshing an editor the first time it becomes visible, and html-lint for using HTMLHint
    • 
+    
  • The search addon now recognizes \r and \n in pattern and replacement input
    • 
+    
  • Full list of patches
    • 
+  

+
+  
20-07-2015: Version 5.5:

+
+  
+
+  
25-06-2015: Version 5.4:

+
+  
+
+  
20-05-2015: Version 5.3:

+
+  
+
+  
20-04-2015: Version 5.2:

+
+  
+
+  
23-03-2015: Version 5.1:

+
+  
+
+  
20-02-2015: Version 5.0:

+
+  
    
+    
  • Experimental mobile support (tested on iOS, Android Chrome, stock Android browser)
    • 
+    
  • New option inputStyle to switch between hidden textarea and contenteditable input.
    • 
+    
  • The getInputField
+    method is no longer guaranteed to return a textarea.
    • 
+    
  • Full list of patches.
    • 
+  

+
+

+
+

+
+  
Version 4.x

+
+  
20-02-2015: Version 4.13:

+
+  
+
+  
22-01-2015: Version 4.12:

+
+  
+
+  
9-01-2015: Version 4.11:

+
+  
Unfortunately, 4.10 did not take care of the
+  Firefox scrolling issue entirely. This release adds two more patches
+  to address that.

+
+  
29-12-2014: Version 4.10:

+
+  
Emergency single-patch update to 4.9. Fixes
+  Firefox-specific problem where the cursor could end up behind the
+  horizontal scrollbar.

+
+  
23-12-2014: Version 4.9:

+
+  
+
+  
22-11-2014: Version 4.8:

+
+  
+
+  
20-10-2014: Version 4.7:

+
+  
    
+    
  • Incompatible:
+    The lint addon now passes the
+    editor's value as first argument to asynchronous lint functions,
+    for consistency. The editor is still passed, as fourth
+    argument.
    • 
+    
  • Improved handling of unicode identifiers in modes for
+    languages that support them.
    • 
+    
  • More mode
+    improvements: CoffeeScript
+    (indentation), Verilog
+    (indentation), Scala
+    (indentation, triple-quoted strings),
+    and PHP (interpolated
+    variables in heredoc strings).
    • 
+    
  • New modes: Textile and Tornado templates.
    • 
+    
  • Experimental new way to define modes.
    • 
+    
  • Improvements to the Vim
+    bindings: Arbitrary insert mode key mappings are now possible,
+    and text objects are supported in visual mode.
    • 
+    
  • The mode meta-information file
+    now includes information about file extensions,
+    and helper
+    functions findModeByMIME
+    and findModeByExtension.
    • 
+    
  • New logo!
    • 
+    
  • Full list of patches.
    • 
+  

+
+  
19-09-2014: Version 4.6:

+
+  
+
+  
21-08-2014: Version 4.5:

+
+  
    
+    
  • Fix several serious bugs with horizontal scrolling
    • 
+    
  • New mode: Slim
    • 
+    
  • New command: goLineLeftSmart
    • 
+    
  • More fixes and extensions for the Vim visual block mode
    • 
+    
  • Full list of patches.
    • 
+  

+
+  
21-07-2014: Version 4.4:

+
+  
    
+    
  • Note: Some events might now fire in slightly
+    different order ("change" is still guaranteed to fire
+    before "cursorActivity")
    • 
+    
  • Nested operations in multiple editors are now synced (complete
+    at same time, reducing DOM reflows)
    • 
+    
  • Visual block mode for vim (<C-v>) is nearly complete
    • 
+    
  • New mode: Kotlin
    • 
+    
  • Better multi-selection paste for text copied from multiple CodeMirror selections
    • 
+    
  • Full list of patches.
    • 
+  

+
+  
23-06-2014: Version 4.3:

+
+  
    
+    
  • Several vim bindings
+    improvements: search and exCommand history, global flag
+    for :substitute, :global command.
+    
  • Allow hiding the cursor by
+    setting cursorBlinkRate
+    to a negative value.
    • 
+    
  • Make gutter markers themeable, use this in foldgutter.
    • 
+    
  • Full list of patches.
    • 
+  

+
+  
19-05-2014: Version 4.2:

+
+  
    
+    
  • Fix problem where some modes were broken by the fact that empty tokens were forbidden.
    • 
+    
  • Several fixes to context menu handling.
    • 
+    
  • On undo, scroll change, not cursor, into view.
    • 
+    
  • Rewritten Jade mode.
    • 
+    
  • Various improvements to Shell (support for more syntax) and Python (better indentation) modes.
    • 
+    
  • New mode: Cypher.
    • 
+    
  • New theme: Neo.
    • 
+    
  • Support direct styling options (color, line style, width) in the rulers addon.
    • 
+    
  • Recognize per-editor configuration for the show-hint and foldcode addons.
    • 
+    
  • More intelligent scanning for existing close tags in closetag addon.
    • 
+    
  • In the Vim bindings: Fix bracket matching, support case conversion in visual mode, visual paste, append action.
    • 
+    
  • Full list of patches.
    • 
+  

+
+  
22-04-2014: Version 4.1:

+
+  
    
+    
  • Slightly incompatible:
+    The "cursorActivity"
+    event now fires after all other events for the operation (and only
+    for handlers that were actually registered at the time the
+    activity happened).
    • 
+    
  • New command: insertSoftTab.
    • 
+    
  • New mode: Django.
    • 
+    
  • Improved modes: Verilog (rewritten), Jinja2, Haxe, PHP (string interpolation highlighted), JavaScript (indentation of trailing else, template strings), LiveScript (multi-line strings).
    • 
+    
  • Many small issues from the 3.x→4.x transition were found and fixed.
    • 
+    
  • Full list of patches.
    • 
+  

+
+  
20-03-2014: Version 4.0:

+
+  
This is a new major version of CodeMirror. There
+  are a few incompatible changes in the API. Upgrade
+  with care, and read the upgrading
+  guide.

+
+  
+
+

+
+

+
+  
Version 3.x

+
+  
22-04-2014: Version 3.24:

+
+  
Merges the improvements from 4.1 that could
+  easily be applied to the 3.x code. Also improves the way the editor
+  size is updated when line widgets change.

+
+  
20-03-2014: Version 3.23:

+
+  
    
+    
  • In the XML mode,
+    add brackets style to angle brackets, fix
+    case-sensitivity of tags for HTML.
    • 
+    
  • New mode: Dylan.
    • 
+    
  • Many improvements to the Vim bindings.
    • 
+  

+
+  
21-02-2014: Version 3.22:

+
+  
+
+  
16-01-2014: Version 3.21:

+
+  
    
+    
  • Auto-indenting a block will no longer add trailing whitespace to blank lines.
    • 
+    
  • Marking text has a new option clearWhenEmpty to control auto-removal.
    • 
+    
  • Several bugfixes in the handling of bidirectional text.
    • 
+    
  • The XML and CSS modes were largely rewritten. LESS support was added to the CSS mode.
    • 
+    
  • The OCaml mode was moved to an mllike mode, F# support added.
    • 
+    
  • Make it possible to fetch multiple applicable helper values with getHelpers, and to register helpers matched on predicates with registerGlobalHelper.
    • 
+    
  • New theme pastel-on-dark.
    • 
+    
  • Better ECMAScript 6 support in JavaScript mode.
    • 
+    
  • Full list of patches.
    • 
+  

+
+  
21-11-2013: Version 3.20:

+
+  
+
+  
21-10-2013: Version 3.19:

+
+  
+
+  
23-09-2013: Version 3.18:

+
+  
Emergency release to fix a problem in 3.17
+  where .setOption("lineNumbers", false) would raise an
+  error.

+
+  
23-09-2013: Version 3.17:

+
+  
+
+  
21-08-2013: Version 3.16:

+
+  
+
+  
29-07-2013: Version 3.15:

+
+  
+
+  
20-06-2013: Version 3.14:

+
+  
+
+  
20-05-2013: Version 3.13:

+
+  
+
+  
19-04-2013: Version 3.12:

+
+  
+
+  
20-03-2013: Version 3.11:

+
+  
+
+  
21-02-2013: Version 3.1:

+
+  
+
+
+  
25-01-2013: Version 3.02:

+
+  
Single-bugfix release. Fixes a problem that
+  prevents CodeMirror instances from being garbage-collected after
+  they become unused.

+
+  
21-01-2013: Version 3.01:

+
+  
+
+  
10-12-2012: Version 3.0:

+
+  
New major version. Only
+  partially backwards-compatible. See
+  the upgrading guide for more
+  information. Changes since release candidate 2:

+
+  
    
+    
  • Rewritten VIM mode.
    • 
+    
  • Fix a few minor scrolling and sizing issues.
    • 
+    
  • Work around Safari segfault when dragging.
    • 
+    
  • Full list of patches.
    • 
+  

+
+  
20-11-2012: Version 3.0, release candidate 2:

+
+  
    
+    
  • New mode: HTTP.
    • 
+    
  • Improved handling of selection anchor position.
    • 
+    
  • Improve IE performance on longer lines.
    • 
+    
  • Reduce gutter glitches during horiz. scrolling.
    • 
+    
  • Add addKeyMap and removeKeyMap methods.
    • 
+    
  • Rewrite formatting and closetag add-ons.
    • 
+    
  • Full list of patches.
    • 
+  

+
+  
20-11-2012: Version 3.0, release candidate 1:

+
+  
+
+  
22-10-2012: Version 3.0, beta 2:

+
+  
    
+    
  • Fix page-based coordinate computation.
    • 
+    
  • Fix firing of gutterClick event.
    • 
+    
  • Add cursorHeight option.
    • 
+    
  • Fix bi-directional text regression.
    • 
+    
  • Add viewportMargin option.
    • 
+    
  • Directly handle mousewheel events (again, hopefully better).
    • 
+    
  • Make vertical cursor movement more robust (through widgets, big line gaps).
    • 
+    
  • Add flattenSpans option.
    • 
+    
  • Many optimizations. Poor responsiveness should be fixed.
    • 
+    
  • Initialization in hidden state works again.
    • 
+    
  • Full list of patches.
    • 
+  

+
+  
19-09-2012: Version 3.0, beta 1:

+
+  
    
+    
  • Bi-directional text support.
    • 
+    
  • More powerful gutter model.
    • 
+    
  • Support for arbitrary text/widget height.
    • 
+    
  • In-line widgets.
    • 
+    
  • Generalized event handling.
    • 
+  

+
+

+
+

+
+  
Version 2.x

+
+  
21-01-2013: Version 2.38:

+
+  
Integrate some bugfixes, enhancements to the vim keymap, and new
+  modes
+  (D, Sass, APL)
+  from the v3 branch.

+
+  
20-12-2012: Version 2.37:

+
+  
    
+    
  • New mode: SQL (will replace plsql and mysql modes).
    • 
+    
  • Further work on the new VIM mode.
    • 
+    
  • Fix Cmd/Ctrl keys on recent Operas on OS X.
    • 
+    
  • Full list of patches.
    • 
+  

+
+  
20-11-2012: Version 2.36:

+
+  
+
+  
22-10-2012: Version 2.35:

+
+  
    
+    
  • New (sub) mode: TypeScript.
    • 
+    
  • Don't overwrite (insert key) when pasting.
    • 
+    
  • Fix several bugs in markText/undo interaction.
    • 
+    
  • Better indentation of JavaScript code without semicolons.
    • 
+    
  • Add defineInitHook function.
    • 
+    
  • Full list of patches.
    • 
+  

+
+  
19-09-2012: Version 2.34:

+
+  
    
+    
  • New mode: Common Lisp.
    • 
+    
  • Fix right-click select-all on most browsers.
    • 
+    
  • Change the way highlighting happens:
      Saves memory and CPU cycles.
      compareStates is no longer needed.
      onHighlightComplete no longer works.
    • 
+    
  • Integrate mode (Markdown, XQuery, CSS, sTex) tests in central testsuite.
    • 
+    
  • Add a CodeMirror.version property.
    • 
+    
  • More robust handling of nested modes in formatting and closetag plug-ins.
    • 
+    
  • Un/redo now preserves marked text and bookmarks.
    • 
+    
  • Full list of patches.
    • 
+  

+
+  
23-08-2012: Version 2.33:

+
+  
    
+    
  • New mode: Sieve.
    • 
+    
  • New getViewPort and onViewportChange API.
    • 
+    
  • Configurable cursor blink rate.
    • 
+    
  • Make binding a key to false disabling handling (again).
    • 
+    
  • Show non-printing characters as red dots.
    • 
+    
  • More tweaks to the scrolling model.
    • 
+    
  • Expanded testsuite. Basic linter added.
    • 
+    
  • Remove most uses of innerHTML. Remove CodeMirror.htmlEscape.
    • 
+    
  • Full list of patches.
    • 
+  

+
+  
23-07-2012: Version 2.32:

+
+  
Emergency fix for a bug where an editor with
+  line wrapping on IE will break when there is no
+  scrollbar.

+
+  
20-07-2012: Version 2.31:

+
+  
+
+  
22-06-2012: Version 2.3:

+
+  
    
+    
  • New scrollbar implementation. Should flicker less. Changes DOM structure of the editor.
    • 
+    
  • New theme: vibrant-ink.
    • 
+    
  • Many extensions to the VIM keymap (including text objects).
    • 
+    
  • Add mode-multiplexing utility script.
    • 
+    
  • Fix bug where right-click paste works in read-only mode.
    • 
+    
  • Add a getScrollInfo method.
    • 
+    
  • Lots of other fixes.
    • 
+  

+
+  
23-05-2012: Version 2.25:

+
+  
    
+    
  • New mode: Erlang.
    • 
+    
  • Remove xmlpure mode (use xml.js).
    • 
+    
  • Fix line-wrapping in Opera.
    • 
+    
  • Fix X Windows middle-click paste in Chrome.
    • 
+    
  • Fix bug that broke pasting of huge documents.
    • 
+    
  • Fix backspace and tab key repeat in Opera.
    • 
+  

+
+  
23-04-2012: Version 2.24:

+
+  
    
+    
  • Drop support for Internet Explorer 6.
    • 
+    
  • New
+    modes: Shell, Tiki
+    wiki, Pig Latin.
    • 
+    
  • New themes: Ambiance, Blackboard.
    • 
+    
  • More control over drag/drop
+    with dragDrop
+    and onDragEvent
+    options.
    • 
+    
  • Make HTML mode a bit less pedantic.
    • 
+    
  • Add compoundChange API method.
    • 
+    
  • Several fixes in undo history and line hiding.
    • 
+    
  • Remove (broken) support for catchall in key maps,
+    add nofallthrough boolean field instead.
    • 
+  

+
+  
26-03-2012: Version 2.23:

+
+  
    
+    
  • Change default binding for tab [more]
+      
+    
    • 
+    
  • New modes: XQuery and VBScript.
    • 
+    
  • Two new themes: lesser-dark and xq-dark.
    • 
+    
  • Differentiate between background and text styles in setLineClass.
    • 
+    
  • Fix drag-and-drop in IE9+.
    • 
+    
  • Extend charCoords
+    and cursorCoords with a mode argument.
    • 
+    
  • Add autofocus option.
    • 
+    
  • Add findMarksAt method.
    • 
+  

+
+  
27-02-2012: Version 2.22:

+
+  
+
+  
27-01-2012: Version 2.21:

+
+  
    
+    
  • Added LESS, MySQL,
+    Go, and Verilog modes.
    • 
+    
  • Add smartIndent
+    option.
    • 
+    
  • Support a cursor in readOnly-mode.
    • 
+    
  • Support assigning multiple styles to a token.
    • 
+    
  • Use a new approach to drawing the selection.
    • 
+    
  • Add scrollTo method.
    • 
+    
  • Allow undo/redo events to span non-adjacent lines.
    • 
+    
  • Lots and lots of bugfixes.
    • 
+  

+
+  
20-12-2011: Version 2.2:

+
+  
+
+  
21-11-2011: Version 2.18:

+  
Fixes TextMarker.clear, which is broken in 2.17.

+
+  
21-11-2011: Version 2.17:

+  
    
+    
  • Add support for line
+    wrapping and code
+    folding.
    • 
+    
  • Add Github-style Markdown mode.
    • 
+    
  • Add Monokai
+    and Rubyblue themes.
    • 
+    
  • Add setBookmark method.
    • 
+    
  • Move some of the demo code into reusable components
+    under lib/util.
    • 
+    
  • Make screen-coord-finding code faster and more reliable.
    • 
+    
  • Fix drag-and-drop in Firefox.
    • 
+    
  • Improve support for IME.
    • 
+    
  • Speed up content rendering.
    • 
+    
  • Fix browser's built-in search in Webkit.
    • 
+    
  • Make double- and triple-click work in IE.
    • 
+    
  • Various fixes to modes.
    • 
+  

+
+  
27-10-2011: Version 2.16:

+  
    
+    
  • Add Perl, Rust, TiddlyWiki, and Groovy modes.
    • 
+    
  • Dragging text inside the editor now moves, rather than copies.
    • 
+    
  • Add a coordsFromIndex method.
    • 
+    
  • API change: setValue now no longer clears history. Use clearHistory for that.
    • 
+    
  • API change: markText now
+    returns an object with clear and find
+    methods. Marked text is now more robust when edited.
    • 
+    
  • Fix editing code with tabs in Internet Explorer.
    • 
+  

+
+  
26-09-2011: Version 2.15:

+  
Fix bug that snuck into 2.14: Clicking the
+  character that currently has the cursor didn't re-focus the
+  editor.

+
+  
26-09-2011: Version 2.14:

+  
+
+
+  
23-08-2011: Version 2.13:

+  
+
+  
25-07-2011: Version 2.12:

+  
    
+    
  • Add a SPARQL mode.
    • 
+    
  • Fix bug with cursor jumping around in an unfocused editor in IE.
    • 
+    
  • Allow key and mouse events to bubble out of the editor. Ignore widget clicks.
    • 
+    
  • Solve cursor flakiness after undo/redo.
    • 
+    
  • Fix block-reindent ignoring the last few lines.
    • 
+    
  • Fix parsing of multi-line attrs in XML mode.
    • 
+    
  • Use innerHTML for HTML-escaping.
    • 
+    
  • Some fixes to indentation in C-like mode.
    • 
+    
  • Shrink horiz scrollbars when long lines removed.
    • 
+    
  • Fix width feedback loop bug that caused the width of an inner DIV to shrink.
    • 
+  

+
+  
04-07-2011: Version 2.11:

+  
    
+    
  • Add a Scheme mode.
    • 
+    
  • Add a replace method to search cursors, for cursor-preserving replacements.
    • 
+    
  • Make the C-like mode mode more customizable.
    • 
+    
  • Update XML mode to spot mismatched tags.
    • 
+    
  • Add getStateAfter API and compareState mode API methods for finer-grained mode magic.
    • 
+    
  • Add a getScrollerElement API method to manipulate the scrolling DIV.
    • 
+    
  • Fix drag-and-drop for Firefox.
    • 
+    
  • Add a C# configuration for the C-like mode.
    • 
+    
  • Add full-screen editing and mode-changing demos.
    • 
+  

+
+  
07-06-2011: Version 2.1:

+  
Add
+  a theme system
+  (demo). Note that this is not
+  backwards-compatible—you'll have to update your styles and
+  modes!

+
+  
07-06-2011: Version 2.02:

+  
    
+    
  • Add a Lua mode.
    • 
+    
  • Fix reverse-searching for a regexp.
    • 
+    
  • Empty lines can no longer break highlighting.
    • 
+    
  • Rework scrolling model (the outer wrapper no longer does the scrolling).
    • 
+    
  • Solve horizontal jittering on long lines.
    • 
+    
  • Add runmode.js.
    • 
+    
  • Immediately re-highlight text when typing.
    • 
+    
  • Fix problem with 'sticking' horizontal scrollbar.
    • 
+  

+
+  
26-05-2011: Version 2.01:

+  
    
+    
  • Add a Smalltalk mode.
    • 
+    
  • Add a reStructuredText mode.
    • 
+    
  • Add a Python mode.
    • 
+    
  • Add a PL/SQL mode.
    • 
+    
  • coordsChar now works
    • 
+    
  • Fix a problem where onCursorActivity interfered with onChange.
    • 
+    
  • Fix a number of scrolling and mouse-click-position glitches.
    • 
+    
  • Pass information about the changed lines to onChange.
    • 
+    
  • Support cmd-up/down on OS X.
    • 
+    
  • Add triple-click line selection.
    • 
+    
  • Don't handle shift when changing the selection through the API.
    • 
+    
  • Support "nocursor" mode for readOnly option.
    • 
+    
  • Add an onHighlightComplete option.
    • 
+    
  • Fix the context menu for Firefox.
    • 
+  

+
+  
28-03-2011: Version 2.0:

+  
CodeMirror 2 is a complete rewrite that's
+  faster, smaller, simpler to use, and less dependent on browser
+  quirks. See this
+  and this
+  for more information.

+
+  
22-02-2011: Version 2.0 beta 2:

+  
Somewhat more mature API, lots of bugs shaken out.

+
+  
17-02-2011: Version 0.94:

+  
    
+    
  • tabMode: "spaces" was modified slightly (now indents when something is selected).
    • 
+    
  • Fixes a bug that would cause the selection code to break on some IE versions.
    • 
+    
  • Disabling spell-check on WebKit browsers now works.
    • 
+  

+
+  
08-02-2011: Version 2.0 beta 1:

+  
CodeMirror 2 is a complete rewrite of
+  CodeMirror, no longer depending on an editable frame.

+
+  
19-01-2011: Version 0.93:

+  
    
+    
  • Added a Regular Expression parser.
    • 
+    
  • Fixes to the PHP parser.
    • 
+    
  • Support for regular expression in search/replace.
    • 
+    
  • Add save method to instances created with fromTextArea.
    • 
+    
  • Add support for MS T-SQL in the SQL parser.
    • 
+    
  • Support use of CSS classes for highlighting brackets.
    • 
+    
  • Fix yet another hang with line-numbering in hidden editors.
    • 
+  

+

+
+

+
+  
Version 0.x

+
+  
28-03-2011: Version 1.0:

+  
    
+    
  • Fix error when debug history overflows.
    • 
+    
  • Refine handling of C# verbatim strings.
    • 
+    
  • Fix some issues with JavaScript indentation.
    • 
+  

+
+  
17-12-2010: Version 0.92:

+  
    
+    
  • Make CodeMirror work in XHTML documents.
    • 
+    
  • Fix bug in handling of backslashes in Python strings.
    • 
+    
  • The styleNumbers option is now officially
+    supported and documented.
    • 
+    
  • onLineNumberClick option added.
    • 
+    
  • More consistent names onLoad and
+    onCursorActivity callbacks. Old names still work, but
+    are deprecated.
    • 
+    
  • Add a Freemarker mode.
    • 
+  

+
+  
11-11-2010: Version 0.91:

+  
    
+    
  • Adds support for Java.
    • 
+    
  • Small additions to the PHP and SQL parsers.
    • 
+    
  • Work around various Webkit issues.
    • 
+    
  • Fix toTextArea to update the code in the textarea.
    • 
+    
  • Add a noScriptCaching option (hack to ease development).
    • 
+    
  • Make sub-modes of HTML mixed mode configurable.
    • 
+  

+
+  
02-10-2010: Version 0.9:

+  
    
+    
  • Add support for searching backwards.
    • 
+    
  • There are now parsers for Scheme, XQuery, and OmetaJS.
    • 
+    
  • Makes height: "dynamic" more robust.
    • 
+    
  • Fixes bug where paste did not work on OS X.
    • 
+    
  • Add a enterMode and electricChars options to make indentation even more customizable.
    • 
+    
  • Add firstLineNumber option.
    • 
+    
  • Fix bad handling of @media rules by the CSS parser.
    • 
+    
  • Take a new, more robust approach to working around the invisible-last-line bug in WebKit.
    • 
+  

+
+  
22-07-2010: Version 0.8:

+  
    
+    
  • Add a cursorCoords method to find the screen
+    coordinates of the cursor.
    • 
+    
  • A number of fixes and support for more syntax in the PHP parser.
    • 
+    
  • Fix indentation problem with JSON-mode JS parser in Webkit.
    • 
+    
  • Add a minification UI.
    • 
+    
  • Support a height: dynamic mode, where the editor's
+    height will adjust to the size of its content.
    • 
+    
  • Better support for IME input mode.
    • 
+    
  • Fix JavaScript parser getting confused when seeing a no-argument
+    function call.
    • 
+    
  • Have CSS parser see the difference between selectors and other
+    identifiers.
    • 
+    
  • Fix scrolling bug when pasting in a horizontally-scrolled
+    editor.
    • 
+    
  • Support toTextArea method in instances created with
+    fromTextArea.
    • 
+    
  • Work around new Opera cursor bug that causes the cursor to jump
+    when pressing backspace at the end of a line.
    • 
+  

+
+  
27-04-2010: Version
+  0.67:

+  
More consistent page-up/page-down behaviour
+  across browsers. Fix some issues with hidden editors looping forever
+  when line-numbers were enabled. Make PHP parser parse
+  "\\" correctly. Have jumpToLine work on
+  line handles, and add cursorLine function to fetch the
+  line handle where the cursor currently is. Add new
+  setStylesheet function to switch style-sheets in a
+  running editor.

+
+  
01-03-2010: Version
+  0.66:

+  
Adds removeLine method to API.
+  Introduces the PLSQL parser.
+  Marks XML errors by adding (rather than replacing) a CSS class, so
+  that they can be disabled by modifying their style. Fixes several
+  selection bugs, and a number of small glitches.

+
+  
12-11-2009: Version
+  0.65:

+  
Add support for having both line-wrapping and
+  line-numbers turned on, make paren-highlighting style customisable
+  (markParen and unmarkParen config
+  options), work around a selection bug that Opera
+  reintroduced in version 10.

+
+  
23-10-2009: Version
+  0.64:

+  
Solves some issues introduced by the
+  paste-handling changes from the previous release. Adds
+  setSpellcheck, setTextWrapping,
+  setIndentUnit, setUndoDepth,
+  setTabMode, and setLineNumbers to
+  customise a running editor. Introduces an SQL parser. Fixes a few small
+  problems in the Python
+  parser. And, as usual, add workarounds for various newly discovered
+  browser incompatibilities.

+
+  
31-08-2009: Version 0.63:

+  
 Overhaul of paste-handling (less fragile), fixes for several
+  serious IE8 issues (cursor jumping, end-of-document bugs) and a number
+  of small problems.

+
+  
30-05-2009: Version 0.62:

+  
Introduces Python
+  and Lua parsers. Add
+  setParser (on-the-fly mode changing) and
+  clearHistory methods. Make parsing passes time-based
+  instead of lines-based (see the passTime option).

+
+

+

diff --git a/public/codemirror/doc/reporting.html b/public/codemirror/doc/reporting.html
new file mode 100644
index 000000000..3c582d961
--- /dev/null
+++ b/public/codemirror/doc/reporting.html
@@ -0,0 +1,61 @@
+
+
+CodeMirror: Reporting Bugs
+
+
+
+
+
+

+
+
Reporting bugs effectively

+
+

+
+
So you found a problem in CodeMirror. By all means, report it! Bug
+reports from users are the main drive behind improvements to
+CodeMirror. But first, please read over these points:

+
+
    
+  
  1. CodeMirror is maintained by volunteers. They don't owe you
+  anything, so be polite. Reports with an indignant or belligerent
+  tone tend to be moved to the bottom of the pile.
    2. 
+
+  
  2. Include information about the browser in which the
+  problem occurred. Even if you tested several browsers, and
+  the problem occurred in all of them, mention this fact in the bug
+  report. Also include browser version numbers and the operating
+  system that you're on.
    3. 
+
+  
  3. Mention which release of CodeMirror you're using. Preferably,
+  try also with the current development snapshot, to ensure the
+  problem has not already been fixed.
    4. 
+
+  
  4. Mention very precisely what went wrong. "X is broken" is not a
+  good bug report. What did you expect to happen? What happened
+  instead? Describe the exact steps a maintainer has to take to make
+  the problem occur. We can not fix something that we can not
+  observe.
    5. 
+
+  
  5. If the problem can not be reproduced in any of the demos
+  included in the CodeMirror distribution, please provide an HTML
+  document that demonstrates the problem. The best way to do this is
+  to go to jsbin.com, enter
+  it there, press save, and include the resulting link in your bug
+  report.
    6. 
+

+
+

+
+

diff --git a/public/codemirror/doc/upgrade_v2.2.html b/public/codemirror/doc/upgrade_v2.2.html
new file mode 100644
index 000000000..3948ce6e5
--- /dev/null
+++ b/public/codemirror/doc/upgrade_v2.2.html
@@ -0,0 +1,96 @@
+
+
+CodeMirror: Version 2.2 upgrade guide
+
+
+
+
+
+

+
+
Upgrading to v2.2

+
+
There are a few things in the 2.2 release that require some care
+when upgrading.

+
+
No more default.css

+
+
The default theme is now included
+in codemirror.css, so
+you do not have to included it separately anymore. (It was tiny, so
+even if you're not using it, the extra data overhead is negligible.)
+
+
Different key customization

+
+
CodeMirror has moved to a system
+where keymaps are used to
+bind behavior to keys. This means custom
+bindings are now possible.

+
+
Three options that influenced key
+behavior, tabMode, enterMode,
+and smartHome, are no longer supported. Instead, you can
+provide custom bindings to influence the way these keys act. This is
+done through the
+new extraKeys
+option, which can hold an object mapping key names to functionality. A
+simple example would be:

+
+
  extraKeys: {
+    "Ctrl-S": function(instance) { saveText(instance.getValue()); },
+    "Ctrl-/": "undo"
+  }

+
+
Keys can be mapped either to functions, which will be given the
+editor instance as argument, or to strings, which are mapped through
+functions through the CodeMirror.commands table, which
+contains all the built-in editing commands, and can be inspected and
+extended by external code.

+
+
By default, the Home key is bound to
+the "goLineStartSmart" command, which moves the cursor to
+the first non-whitespace character on the line. You can set do this to
+make it always go to the very start instead:

+
+
  extraKeys: {"Home": "goLineStart"}

+
+
Similarly, Enter is bound
+to "newlineAndIndent" by default. You can bind it to
+something else to get different behavior. To disable special handling
+completely and only get a newline character inserted, you can bind it
+to false:

+
+
  extraKeys: {"Enter": false}

+
+
The same works for Tab. If you don't want CodeMirror
+to handle it, bind it to false. The default behaviour is
+to indent the current line more ("indentMore" command),
+and indent it less when shift is held ("indentLess").
+There are also "indentAuto" (smart indent)
+and "insertTab" commands provided for alternate
+behaviors. Or you can write your own handler function to do something
+different altogether.

+
+
Tabs

+
+
Handling of tabs changed completely. The display width of tabs can
+now be set with the tabSize option, and tabs can
+be styled by setting CSS rules
+for the cm-tab class.

+
+
The default width for tabs is now 4, as opposed to the 8 that is
+hard-wired into browsers. If you are relying on 8-space tabs, make
+sure you explicitly set tabSize: 8 in your options.

+
+

diff --git a/public/codemirror/doc/upgrade_v3.html b/public/codemirror/doc/upgrade_v3.html
new file mode 100644
index 000000000..5f94067aa
--- /dev/null
+++ b/public/codemirror/doc/upgrade_v3.html
@@ -0,0 +1,230 @@
+
+
+CodeMirror: Version 3 upgrade guide
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

+
+
Upgrading to version 3

+
+
Version 3 does not depart too much from 2.x API, and sites that use
+CodeMirror in a very simple way might be able to upgrade without
+trouble. But it does introduce a number of incompatibilities. Please
+at least skim this text before upgrading.

+
+
Note that version 3 drops full support for Internet
+Explorer 7. The editor will mostly work on that browser, but
+it'll be significantly glitchy.

+
+

+  
DOM structure

+
+
This one is the most likely to cause problems. The internal
+structure of the editor has changed quite a lot, mostly to implement a
+new scrolling model.

+
+
Editor height is now set on the outer wrapper element (CSS
+class CodeMirror), not on the scroller element
+(CodeMirror-scroll).

+
+
Other nodes were moved, dropped, and added. If you have any code
+that makes assumptions about the internal DOM structure of the editor,
+you'll have to re-test it and probably update it to work with v3.

+
+
See the styling section of the
+manual for more information.

+

+

+  
Gutter model

+
+
In CodeMirror 2.x, there was a single gutter, and line markers
+created with setMarker would have to somehow coexist with
+the line numbers (if present). Version 3 allows you to specify an
+array of gutters, by class
+name,
+use setGutterMarker
+to add or remove markers in individual gutters, and clear whole
+gutters
+with clearGutter.
+Gutter markers are now specified as DOM nodes, rather than HTML
+snippets.

+
+
The gutters no longer horizontally scrolls along with the content.
+The fixedGutter option was removed (since it is now the
+only behavior).

+
+
+<style>
+  /* Define a gutter style */
+  .note-gutter { width: 3em; background: cyan; }
+</style>
+<script>
+  // Create an instance with two gutters -- line numbers and notes
+  var cm = new CodeMirror(document.body, {
+    gutters: ["note-gutter", "CodeMirror-linenumbers"],
+    lineNumbers: true
+  });
+  // Add a note to line 0
+  cm.setGutterMarker(0, "note-gutter", document.createTextNode("hi"));
+</script>
+

+

+

+  
Event handling

+
+
Most of the onXYZ options have been removed. The same
+effect is now obtained by calling
+the on method with a string
+identifying the event type. Multiple handlers can now be registered
+(and individually unregistered) for an event, and objects such as line
+handlers now also expose events. See the
+full list here.

+
+
(The onKeyEvent and onDragEvent options,
+which act more as hooks than as event handlers, are still there in
+their old form.)

+
+
+cm.on("change", function(cm, change) {
+  console.log("something changed! (" + change.origin + ")");
+});
+

+

+

+  
markText method arguments

+
+
The markText method
+(which has gained some interesting new features, such as creating
+atomic and read-only spans, or replacing spans with widgets) no longer
+takes the CSS class name as a separate argument, but makes it an
+optional field in the options object instead.

+
+
+// Style first ten lines, and forbid the cursor from entering them
+cm.markText({line: 0, ch: 0}, {line: 10, ch: 0}, {
+  className: "magic-text",
+  inclusiveLeft: true,
+  atomic: true
+});
+

+

+

+  
Line folding

+
+
The interface for hiding lines has been
+removed. markText can
+now be used to do the same in a more flexible and powerful way.

+
+
The folding script has been
+updated to use the new interface, and should now be more robust.

+
+
+// Fold a range, replacing it with the text "??"
+var range = cm.markText({line: 4, ch: 2}, {line: 8, ch: 1}, {
+  replacedWith: document.createTextNode("??"),
+  // Auto-unfold when cursor moves into the range
+  clearOnEnter: true
+});
+// Get notified when auto-unfolding
+CodeMirror.on(range, "clear", function() {
+  console.log("boom");
+});
+

+

+

+  
Line CSS classes

+
+
The setLineClass method has been replaced
+by addLineClass
+and removeLineClass,
+which allow more modular control over the classes attached to a line.

+
+
+var marked = cm.addLineClass(10, "background", "highlighted-line");
+setTimeout(function() {
+  cm.removeLineClass(marked, "background", "highlighted-line");
+});
+

+

+

+  
Position properties

+
+
All methods that take or return objects that represent screen
+positions now use {left, top, bottom, right} properties
+(not always all of them) instead of the {x, y, yBot} used
+by some methods in v2.x.

+
+
Affected methods
+are cursorCoords, charCoords, coordsChar,
+and getScrollInfo.

+

+

+  
Bracket matching no longer in core

+
+
The matchBrackets
+option is no longer defined in the core editor.
+Load addon/edit/matchbrackets.js to enable it.

+

+

+  
Mode management

+
+
The CodeMirror.listModes
+and CodeMirror.listMIMEs functions, used for listing
+defined modes, are gone. You are now encouraged to simply
+inspect CodeMirror.modes (mapping mode names to mode
+constructors) and CodeMirror.mimeModes (mapping MIME
+strings to mode specs).

+

+

+  
New features

+
+
Some more reasons to upgrade to version 3.

+
+
    
+  
  • Bi-directional text support. CodeMirror will now mostly do the
+  right thing when editing Arabic or Hebrew text.
    • 
+  
  • Arbitrary line heights. Using fonts with different heights
+  inside the editor (whether off by one pixel or fifty) is now
+  supported and handled gracefully.
    • 
+  
  • In-line widgets. See the demo
+  and the docs.
    • 
+  
  • Defining custom options
+  with CodeMirror.defineOption.
    • 
+

+

+

+
+
diff --git a/public/codemirror/doc/upgrade_v4.html b/public/codemirror/doc/upgrade_v4.html
new file mode 100644
index 000000000..09df00ca1
--- /dev/null
+++ b/public/codemirror/doc/upgrade_v4.html
@@ -0,0 +1,144 @@
+
+
+CodeMirror: Version 4 upgrade guide
+
+
+
+
+
+
+

+
+
Upgrading to version 4

+
+
CodeMirror 4's interface is very close version 3, but it
+does fix a few awkward details in a backwards-incompatible ways. At
+least skim the text below before upgrading.

+
+
Multiple selections

+
+
The main new feature in version 4 is multiple selections. The
+single-selection variants of methods are still there, but now
+typically act only on the primary selection (usually the last
+one added).

+
+
The exception to this
+is getSelection,
+which will now return the content of all selections
+(separated by newlines, or whatever lineSep parameter you passed
+it).

+
+

+
+
The beforeSelectionChange event

+
+
This event still exists, but the object it is passed has
+a completely new
+interface, because such changes now concern multiple
+selections.

+
+

+
+
replaceSelection's collapsing behavior

+
+
By
+default, replaceSelection
+would leave the newly inserted text selected. This is only rarely what
+you want, and also (slightly) more expensive in the new model, so the
+default was changed to "end", meaning the old behavior
+must be explicitly specified by passing a second argument
+of "around".

+
+

+
+
change event data

+
+
Rather than forcing client code to follow next
+pointers from one change object to the next, the library will now
+simply fire
+multiple "change"
+events. Existing code will probably continue to work unmodified.

+
+

+
+
showIfHidden option to line widgets

+
+
This option, which conceptually caused line widgets to be visible
+even if their line was hidden, was never really well-defined, and was
+buggy from the start. It would be a rather expensive feature, both in
+code complexity and run-time performance, to implement properly. It
+has been dropped entirely in 4.0.

+
+

+
+
Module loaders

+
+
All modules in the CodeMirror distribution are now wrapped in a
+shim function to make them compatible with both AMD
+(requirejs) and CommonJS (as used
+by node
+and browserify) module loaders.
+When neither of these is present, they fall back to simply using the
+global CodeMirror variable.

+
+
If you have a module loader present in your environment, CodeMirror
+will attempt to use it, and you might need to change the way you load
+CodeMirror modules.

+
+

+
+
Mutating shared data structures

+
+
Data structures produced by the library should not be mutated
+unless explicitly allowed, in general. This is slightly more strict in
+4.0 than it was in earlier versions, which copied the position objects
+returned by getCursor
+for nebulous, historic reasons. In 4.0, mutating these
+objects will corrupt your editor's selection.

+
+

+
+
Deprecated interfaces dropped

+
+
A few properties and methods that have been deprecated for a while
+are now gone. Most notably, the onKeyEvent
+and onDragEvent options (use the
+corresponding events instead).

+
+
Two silly methods, which were mostly there to stay close to the 0.x
+API, setLine and removeLine are now gone.
+Use the more
+flexible replaceRange
+method instead.

+
+
The long names for folding and completing functions
+(CodeMirror.braceRangeFinder, CodeMirror.javascriptHint,
+etc) are also gone
+(use CodeMirror.fold.brace, CodeMirror.hint.javascript).

+
+
The className property in the return value
+of getTokenAt, which
+has been superseded by the type property, is also no
+longer present.

+
+

+

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+
+CodeMirror
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

+
+

+  
CodeMirror is a versatile text editor
+  implemented in JavaScript for the browser. It is specialized for
+  editing code, and comes with a number of language modes and addons
+  that implement more advanced editing functionality.

+
+  
A rich programming API and a
+  CSS theming system are
+  available for customizing CodeMirror to fit your application, and
+  extending it with new functionality.

+

+
+

+  
This is CodeMirror

+  

+  

+  
+
+  

+    

+      
+      

+        DOWNLOAD
+      

+      

+        FUND
+      

+    

+    

+      Get the current version: 5.25.0.

+      You can see the code,

+      read the release notes,

+      or study the user manual.
+    

+    

+      Software needs maintenance,

+      maintainers need to subsist.

+      Current funding status = 

+      You can help per month or
+      once.
+      

+        
+        
+      

+    

+  

+
+

+
+

+  
Features

+  
+

+
+

+  
Community

+
+  
CodeMirror is an open-source project shared under
+  an MIT license. It is the editor used in the
+  dev tools for
+  both Firefox
+  and Chrome, Light
+  Table, Adobe
+  Brackets, Bitbucket,
+  and many other projects.

+
+  
Development and bug tracking happens
+  on github
+  (alternate git
+  repository).
+  Please read these
+  pointers before submitting a bug. Use pull requests to submit
+  patches. All contributions must be released under the same MIT
+  license that CodeMirror uses.

+
+  
Discussion around the project is done on
+  a discussion forum.
+  Announcements related to the project, such as new versions, are
+  posted in the
+  forum's "announce"
+  category. If needed, you can
+  contact the maintainer
+  directly. We aim to be an inclusive, welcoming community. To make
+  that explicit, we have
+  a code of
+  conduct that applies to communication around the project.

+
+  
A list of CodeMirror-related software that is not part of the
+  main distribution is maintained
+  on our
+  wiki. Feel free to add your project.

+

+
+

+  
Browser support

+  
The desktop versions of the following browsers,
+  in standards mode (HTML5 <!doctype html>
+  recommended) are supported:

+  
+    
+    
+    
+    
+    
+  
Firefoxversion 4 and up
Chromeany version
Safariversion 5.2 and up
Internet Explorerversion 8 and up
Operaversion 9 and up

+  
Support for modern mobile browsers is experimental. Recent
+  versions of the iOS browser and Chrome on Android should work
+  pretty well.

+

+
+

diff --git a/public/codemirror/keymap/emacs.js b/public/codemirror/keymap/emacs.js
new file mode 100644
index 000000000..2d5fe1b81
--- /dev/null
+++ b/public/codemirror/keymap/emacs.js
@@ -0,0 +1,416 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  var Pos = CodeMirror.Pos;
+  function posEq(a, b) { return a.line == b.line && a.ch == b.ch; }
+
+  // Kill 'ring'
+
+  var killRing = [];
+  function addToRing(str) {
+    killRing.push(str);
+    if (killRing.length > 50) killRing.shift();
+  }
+  function growRingTop(str) {
+    if (!killRing.length) return addToRing(str);
+    killRing[killRing.length - 1] += str;
+  }
+  function getFromRing(n) { return killRing[killRing.length - (n ? Math.min(n, 1) : 1)] || ""; }
+  function popFromRing() { if (killRing.length > 1) killRing.pop(); return getFromRing(); }
+
+  var lastKill = null;
+
+  function kill(cm, from, to, mayGrow, text) {
+    if (text == null) text = cm.getRange(from, to);
+
+    if (mayGrow && lastKill && lastKill.cm == cm && posEq(from, lastKill.pos) && cm.isClean(lastKill.gen))
+      growRingTop(text);
+    else
+      addToRing(text);
+    cm.replaceRange("", from, to, "+delete");
+
+    if (mayGrow) lastKill = {cm: cm, pos: from, gen: cm.changeGeneration()};
+    else lastKill = null;
+  }
+
+  // Boundaries of various units
+
+  function byChar(cm, pos, dir) {
+    return cm.findPosH(pos, dir, "char", true);
+  }
+
+  function byWord(cm, pos, dir) {
+    return cm.findPosH(pos, dir, "word", true);
+  }
+
+  function byLine(cm, pos, dir) {
+    return cm.findPosV(pos, dir, "line", cm.doc.sel.goalColumn);
+  }
+
+  function byPage(cm, pos, dir) {
+    return cm.findPosV(pos, dir, "page", cm.doc.sel.goalColumn);
+  }
+
+  function byParagraph(cm, pos, dir) {
+    var no = pos.line, line = cm.getLine(no);
+    var sawText = /\S/.test(dir < 0 ? line.slice(0, pos.ch) : line.slice(pos.ch));
+    var fst = cm.firstLine(), lst = cm.lastLine();
+    for (;;) {
+      no += dir;
+      if (no < fst || no > lst)
+        return cm.clipPos(Pos(no - dir, dir < 0 ? 0 : null));
+      line = cm.getLine(no);
+      var hasText = /\S/.test(line);
+      if (hasText) sawText = true;
+      else if (sawText) return Pos(no, 0);
+    }
+  }
+
+  function bySentence(cm, pos, dir) {
+    var line = pos.line, ch = pos.ch;
+    var text = cm.getLine(pos.line), sawWord = false;
+    for (;;) {
+      var next = text.charAt(ch + (dir < 0 ? -1 : 0));
+      if (!next) { // End/beginning of line reached
+        if (line == (dir < 0 ? cm.firstLine() : cm.lastLine())) return Pos(line, ch);
+        text = cm.getLine(line + dir);
+        if (!/\S/.test(text)) return Pos(line, ch);
+        line += dir;
+        ch = dir < 0 ? text.length : 0;
+        continue;
+      }
+      if (sawWord && /[!?.]/.test(next)) return Pos(line, ch + (dir > 0 ? 1 : 0));
+      if (!sawWord) sawWord = /\w/.test(next);
+      ch += dir;
+    }
+  }
+
+  function byExpr(cm, pos, dir) {
+    var wrap;
+    if (cm.findMatchingBracket && (wrap = cm.findMatchingBracket(pos, true))
+        && wrap.match && (wrap.forward ? 1 : -1) == dir)
+      return dir > 0 ? Pos(wrap.to.line, wrap.to.ch + 1) : wrap.to;
+
+    for (var first = true;; first = false) {
+      var token = cm.getTokenAt(pos);
+      var after = Pos(pos.line, dir < 0 ? token.start : token.end);
+      if (first && dir > 0 && token.end == pos.ch || !/\w/.test(token.string)) {
+        var newPos = cm.findPosH(after, dir, "char");
+        if (posEq(after, newPos)) return pos;
+        else pos = newPos;
+      } else {
+        return after;
+      }
+    }
+  }
+
+  // Prefixes (only crudely supported)
+
+  function getPrefix(cm, precise) {
+    var digits = cm.state.emacsPrefix;
+    if (!digits) return precise ? null : 1;
+    clearPrefix(cm);
+    return digits == "-" ? -1 : Number(digits);
+  }
+
+  function repeated(cmd) {
+    var f = typeof cmd == "string" ? function(cm) { cm.execCommand(cmd); } : cmd;
+    return function(cm) {
+      var prefix = getPrefix(cm);
+      f(cm);
+      for (var i = 1; i < prefix; ++i) f(cm);
+    };
+  }
+
+  function findEnd(cm, pos, by, dir) {
+    var prefix = getPrefix(cm);
+    if (prefix < 0) { dir = -dir; prefix = -prefix; }
+    for (var i = 0; i < prefix; ++i) {
+      var newPos = by(cm, pos, dir);
+      if (posEq(newPos, pos)) break;
+      pos = newPos;
+    }
+    return pos;
+  }
+
+  function move(by, dir) {
+    var f = function(cm) {
+      cm.extendSelection(findEnd(cm, cm.getCursor(), by, dir));
+    };
+    f.motion = true;
+    return f;
+  }
+
+  function killTo(cm, by, dir) {
+    var selections = cm.listSelections(), cursor;
+    var i = selections.length;
+    while (i--) {
+      cursor = selections[i].head;
+      kill(cm, cursor, findEnd(cm, cursor, by, dir), true);
+    }
+  }
+
+  function killRegion(cm) {
+    if (cm.somethingSelected()) {
+      var selections = cm.listSelections(), selection;
+      var i = selections.length;
+      while (i--) {
+        selection = selections[i];
+        kill(cm, selection.anchor, selection.head);
+      }
+      return true;
+    }
+  }
+
+  function addPrefix(cm, digit) {
+    if (cm.state.emacsPrefix) {
+      if (digit != "-") cm.state.emacsPrefix += digit;
+      return;
+    }
+    // Not active yet
+    cm.state.emacsPrefix = digit;
+    cm.on("keyHandled", maybeClearPrefix);
+    cm.on("inputRead", maybeDuplicateInput);
+  }
+
+  var prefixPreservingKeys = {"Alt-G": true, "Ctrl-X": true, "Ctrl-Q": true, "Ctrl-U": true};
+
+  function maybeClearPrefix(cm, arg) {
+    if (!cm.state.emacsPrefixMap && !prefixPreservingKeys.hasOwnProperty(arg))
+      clearPrefix(cm);
+  }
+
+  function clearPrefix(cm) {
+    cm.state.emacsPrefix = null;
+    cm.off("keyHandled", maybeClearPrefix);
+    cm.off("inputRead", maybeDuplicateInput);
+  }
+
+  function maybeDuplicateInput(cm, event) {
+    var dup = getPrefix(cm);
+    if (dup > 1 && event.origin == "+input") {
+      var one = event.text.join("\n"), txt = "";
+      for (var i = 1; i < dup; ++i) txt += one;
+      cm.replaceSelection(txt);
+    }
+  }
+
+  function addPrefixMap(cm) {
+    cm.state.emacsPrefixMap = true;
+    cm.addKeyMap(prefixMap);
+    cm.on("keyHandled", maybeRemovePrefixMap);
+    cm.on("inputRead", maybeRemovePrefixMap);
+  }
+
+  function maybeRemovePrefixMap(cm, arg) {
+    if (typeof arg == "string" && (/^\d$/.test(arg) || arg == "Ctrl-U")) return;
+    cm.removeKeyMap(prefixMap);
+    cm.state.emacsPrefixMap = false;
+    cm.off("keyHandled", maybeRemovePrefixMap);
+    cm.off("inputRead", maybeRemovePrefixMap);
+  }
+
+  // Utilities
+
+  function setMark(cm) {
+    cm.setCursor(cm.getCursor());
+    cm.setExtending(!cm.getExtending());
+    cm.on("change", function() { cm.setExtending(false); });
+  }
+
+  function clearMark(cm) {
+    cm.setExtending(false);
+    cm.setCursor(cm.getCursor());
+  }
+
+  function getInput(cm, msg, f) {
+    if (cm.openDialog)
+      cm.openDialog(msg + ": ", f, {bottom: true});
+    else
+      f(prompt(msg, ""));
+  }
+
+  function operateOnWord(cm, op) {
+    var start = cm.getCursor(), end = cm.findPosH(start, 1, "word");
+    cm.replaceRange(op(cm.getRange(start, end)), start, end);
+    cm.setCursor(end);
+  }
+
+  function toEnclosingExpr(cm) {
+    var pos = cm.getCursor(), line = pos.line, ch = pos.ch;
+    var stack = [];
+    while (line >= cm.firstLine()) {
+      var text = cm.getLine(line);
+      for (var i = ch == null ? text.length : ch; i > 0;) {
+        var ch = text.charAt(--i);
+        if (ch == ")")
+          stack.push("(");
+        else if (ch == "]")
+          stack.push("[");
+        else if (ch == "}")
+          stack.push("{");
+        else if (/[\(\{\[]/.test(ch) && (!stack.length || stack.pop() != ch))
+          return cm.extendSelection(Pos(line, i));
+      }
+      --line; ch = null;
+    }
+  }
+
+  function quit(cm) {
+    cm.execCommand("clearSearch");
+    clearMark(cm);
+  }
+
+  CodeMirror.emacs = {kill: kill, killRegion: killRegion, repeated: repeated};
+
+  // Actual keymap
+
+  var keyMap = CodeMirror.keyMap.emacs = CodeMirror.normalizeKeyMap({
+    "Ctrl-W": function(cm) {kill(cm, cm.getCursor("start"), cm.getCursor("end"));},
+    "Ctrl-K": repeated(function(cm) {
+      var start = cm.getCursor(), end = cm.clipPos(Pos(start.line));
+      var text = cm.getRange(start, end);
+      if (!/\S/.test(text)) {
+        text += "\n";
+        end = Pos(start.line + 1, 0);
+      }
+      kill(cm, start, end, true, text);
+    }),
+    "Alt-W": function(cm) {
+      addToRing(cm.getSelection());
+      clearMark(cm);
+    },
+    "Ctrl-Y": function(cm) {
+      var start = cm.getCursor();
+      cm.replaceRange(getFromRing(getPrefix(cm)), start, start, "paste");
+      cm.setSelection(start, cm.getCursor());
+    },
+    "Alt-Y": function(cm) {cm.replaceSelection(popFromRing(), "around", "paste");},
+
+    "Ctrl-Space": setMark, "Ctrl-Shift-2": setMark,
+
+    "Ctrl-F": move(byChar, 1), "Ctrl-B": move(byChar, -1),
+    "Right": move(byChar, 1), "Left": move(byChar, -1),
+    "Ctrl-D": function(cm) { killTo(cm, byChar, 1); },
+    "Delete": function(cm) { killRegion(cm) || killTo(cm, byChar, 1); },
+    "Ctrl-H": function(cm) { killTo(cm, byChar, -1); },
+    "Backspace": function(cm) { killRegion(cm) || killTo(cm, byChar, -1); },
+
+    "Alt-F": move(byWord, 1), "Alt-B": move(byWord, -1),
+    "Alt-D": function(cm) { killTo(cm, byWord, 1); },
+    "Alt-Backspace": function(cm) { killTo(cm, byWord, -1); },
+
+    "Ctrl-N": move(byLine, 1), "Ctrl-P": move(byLine, -1),
+    "Down": move(byLine, 1), "Up": move(byLine, -1),
+    "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
+    "End": "goLineEnd", "Home": "goLineStart",
+
+    "Alt-V": move(byPage, -1), "Ctrl-V": move(byPage, 1),
+    "PageUp": move(byPage, -1), "PageDown": move(byPage, 1),
+
+    "Ctrl-Up": move(byParagraph, -1), "Ctrl-Down": move(byParagraph, 1),
+
+    "Alt-A": move(bySentence, -1), "Alt-E": move(bySentence, 1),
+    "Alt-K": function(cm) { killTo(cm, bySentence, 1); },
+
+    "Ctrl-Alt-K": function(cm) { killTo(cm, byExpr, 1); },
+    "Ctrl-Alt-Backspace": function(cm) { killTo(cm, byExpr, -1); },
+    "Ctrl-Alt-F": move(byExpr, 1), "Ctrl-Alt-B": move(byExpr, -1),
+
+    "Shift-Ctrl-Alt-2": function(cm) {
+      var cursor = cm.getCursor();
+      cm.setSelection(findEnd(cm, cursor, byExpr, 1), cursor);
+    },
+    "Ctrl-Alt-T": function(cm) {
+      var leftStart = byExpr(cm, cm.getCursor(), -1), leftEnd = byExpr(cm, leftStart, 1);
+      var rightEnd = byExpr(cm, leftEnd, 1), rightStart = byExpr(cm, rightEnd, -1);
+      cm.replaceRange(cm.getRange(rightStart, rightEnd) + cm.getRange(leftEnd, rightStart) +
+                      cm.getRange(leftStart, leftEnd), leftStart, rightEnd);
+    },
+    "Ctrl-Alt-U": repeated(toEnclosingExpr),
+
+    "Alt-Space": function(cm) {
+      var pos = cm.getCursor(), from = pos.ch, to = pos.ch, text = cm.getLine(pos.line);
+      while (from && /\s/.test(text.charAt(from - 1))) --from;
+      while (to < text.length && /\s/.test(text.charAt(to))) ++to;
+      cm.replaceRange(" ", Pos(pos.line, from), Pos(pos.line, to));
+    },
+    "Ctrl-O": repeated(function(cm) { cm.replaceSelection("\n", "start"); }),
+    "Ctrl-T": repeated(function(cm) {
+      cm.execCommand("transposeChars");
+    }),
+
+    "Alt-C": repeated(function(cm) {
+      operateOnWord(cm, function(w) {
+        var letter = w.search(/\w/);
+        if (letter == -1) return w;
+        return w.slice(0, letter) + w.charAt(letter).toUpperCase() + w.slice(letter + 1).toLowerCase();
+      });
+    }),
+    "Alt-U": repeated(function(cm) {
+      operateOnWord(cm, function(w) { return w.toUpperCase(); });
+    }),
+    "Alt-L": repeated(function(cm) {
+      operateOnWord(cm, function(w) { return w.toLowerCase(); });
+    }),
+
+    "Alt-;": "toggleComment",
+
+    "Ctrl-/": repeated("undo"), "Shift-Ctrl--": repeated("undo"),
+    "Ctrl-Z": repeated("undo"), "Cmd-Z": repeated("undo"),
+    "Shift-Alt-,": "goDocStart", "Shift-Alt-.": "goDocEnd",
+    "Ctrl-S": "findNext", "Ctrl-R": "findPrev", "Ctrl-G": quit, "Shift-Alt-5": "replace",
+    "Alt-/": "autocomplete",
+    "Enter": "newlineAndIndent",
+    "Ctrl-J": repeated(function(cm) { cm.replaceSelection("\n", "end"); }),
+    "Tab": "indentAuto",
+
+    "Alt-G G": function(cm) {
+      var prefix = getPrefix(cm, true);
+      if (prefix != null && prefix > 0) return cm.setCursor(prefix - 1);
+
+      getInput(cm, "Goto line", function(str) {
+        var num;
+        if (str && !isNaN(num = Number(str)) && num == (num|0) && num > 0)
+          cm.setCursor(num - 1);
+      });
+    },
+
+    "Ctrl-X Tab": function(cm) {
+      cm.indentSelection(getPrefix(cm, true) || cm.getOption("indentUnit"));
+    },
+    "Ctrl-X Ctrl-X": function(cm) {
+      cm.setSelection(cm.getCursor("head"), cm.getCursor("anchor"));
+    },
+    "Ctrl-X Ctrl-S": "save",
+    "Ctrl-X Ctrl-W": "save",
+    "Ctrl-X S": "saveAll",
+    "Ctrl-X F": "open",
+    "Ctrl-X U": repeated("undo"),
+    "Ctrl-X K": "close",
+    "Ctrl-X Delete": function(cm) { kill(cm, cm.getCursor(), bySentence(cm, cm.getCursor(), 1), true); },
+    "Ctrl-X H": "selectAll",
+
+    "Ctrl-Q Tab": repeated("insertTab"),
+    "Ctrl-U": addPrefixMap
+  });
+
+  var prefixMap = {"Ctrl-G": clearPrefix};
+  function regPrefix(d) {
+    prefixMap[d] = function(cm) { addPrefix(cm, d); };
+    keyMap["Ctrl-" + d] = function(cm) { addPrefix(cm, d); };
+    prefixPreservingKeys["Ctrl-" + d] = true;
+  }
+  for (var i = 0; i < 10; ++i) regPrefix(String(i));
+  regPrefix("-");
+});
diff --git a/public/codemirror/keymap/sublime.js b/public/codemirror/keymap/sublime.js
new file mode 100644
index 000000000..0ce895587
--- /dev/null
+++ b/public/codemirror/keymap/sublime.js
@@ -0,0 +1,596 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// A rough approximation of Sublime Text's keybindings
+// Depends on addon/search/searchcursor.js and optionally addon/dialog/dialogs.js
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../lib/codemirror"), require("../addon/search/searchcursor"), require("../addon/edit/matchbrackets"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../lib/codemirror", "../addon/search/searchcursor", "../addon/edit/matchbrackets"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  var map = CodeMirror.keyMap.sublime = {fallthrough: "default"};
+  var cmds = CodeMirror.commands;
+  var Pos = CodeMirror.Pos;
+  var mac = CodeMirror.keyMap["default"] == CodeMirror.keyMap.macDefault;
+  var ctrl = mac ? "Cmd-" : "Ctrl-";
+
+  // This is not exactly Sublime's algorithm. I couldn't make heads or tails of that.
+  function findPosSubword(doc, start, dir) {
+    if (dir < 0 && start.ch == 0) return doc.clipPos(Pos(start.line - 1));
+    var line = doc.getLine(start.line);
+    if (dir > 0 && start.ch >= line.length) return doc.clipPos(Pos(start.line + 1, 0));
+    var state = "start", type;
+    for (var pos = start.ch, e = dir < 0 ? 0 : line.length, i = 0; pos != e; pos += dir, i++) {
+      var next = line.charAt(dir < 0 ? pos - 1 : pos);
+      var cat = next != "_" && CodeMirror.isWordChar(next) ? "w" : "o";
+      if (cat == "w" && next.toUpperCase() == next) cat = "W";
+      if (state == "start") {
+        if (cat != "o") { state = "in"; type = cat; }
+      } else if (state == "in") {
+        if (type != cat) {
+          if (type == "w" && cat == "W" && dir < 0) pos--;
+          if (type == "W" && cat == "w" && dir > 0) { type = "w"; continue; }
+          break;
+        }
+      }
+    }
+    return Pos(start.line, pos);
+  }
+
+  function moveSubword(cm, dir) {
+    cm.extendSelectionsBy(function(range) {
+      if (cm.display.shift || cm.doc.extend || range.empty())
+        return findPosSubword(cm.doc, range.head, dir);
+      else
+        return dir < 0 ? range.from() : range.to();
+    });
+  }
+
+  var goSubwordCombo = mac ? "Ctrl-" : "Alt-";
+
+  cmds[map[goSubwordCombo + "Left"] = "goSubwordLeft"] = function(cm) { moveSubword(cm, -1); };
+  cmds[map[goSubwordCombo + "Right"] = "goSubwordRight"] = function(cm) { moveSubword(cm, 1); };
+
+  if (mac) map["Cmd-Left"] = "goLineStartSmart";
+
+  var scrollLineCombo = mac ? "Ctrl-Alt-" : "Ctrl-";
+
+  cmds[map[scrollLineCombo + "Up"] = "scrollLineUp"] = function(cm) {
+    var info = cm.getScrollInfo();
+    if (!cm.somethingSelected()) {
+      var visibleBottomLine = cm.lineAtHeight(info.top + info.clientHeight, "local");
+      if (cm.getCursor().line >= visibleBottomLine)
+        cm.execCommand("goLineUp");
+    }
+    cm.scrollTo(null, info.top - cm.defaultTextHeight());
+  };
+  cmds[map[scrollLineCombo + "Down"] = "scrollLineDown"] = function(cm) {
+    var info = cm.getScrollInfo();
+    if (!cm.somethingSelected()) {
+      var visibleTopLine = cm.lineAtHeight(info.top, "local")+1;
+      if (cm.getCursor().line <= visibleTopLine)
+        cm.execCommand("goLineDown");
+    }
+    cm.scrollTo(null, info.top + cm.defaultTextHeight());
+  };
+
+  cmds[map["Shift-" + ctrl + "L"] = "splitSelectionByLine"] = function(cm) {
+    var ranges = cm.listSelections(), lineRanges = [];
+    for (var i = 0; i < ranges.length; i++) {
+      var from = ranges[i].from(), to = ranges[i].to();
+      for (var line = from.line; line <= to.line; ++line)
+        if (!(to.line > from.line && line == to.line && to.ch == 0))
+          lineRanges.push({anchor: line == from.line ? from : Pos(line, 0),
+                           head: line == to.line ? to : Pos(line)});
+    }
+    cm.setSelections(lineRanges, 0);
+  };
+
+  map["Shift-Tab"] = "indentLess";
+
+  cmds[map["Esc"] = "singleSelectionTop"] = function(cm) {
+    var range = cm.listSelections()[0];
+    cm.setSelection(range.anchor, range.head, {scroll: false});
+  };
+
+  cmds[map[ctrl + "L"] = "selectLine"] = function(cm) {
+    var ranges = cm.listSelections(), extended = [];
+    for (var i = 0; i < ranges.length; i++) {
+      var range = ranges[i];
+      extended.push({anchor: Pos(range.from().line, 0),
+                     head: Pos(range.to().line + 1, 0)});
+    }
+    cm.setSelections(extended);
+  };
+
+  map["Shift-Ctrl-K"] = "deleteLine";
+
+  function insertLine(cm, above) {
+    if (cm.isReadOnly()) return CodeMirror.Pass
+    cm.operation(function() {
+      var len = cm.listSelections().length, newSelection = [], last = -1;
+      for (var i = 0; i < len; i++) {
+        var head = cm.listSelections()[i].head;
+        if (head.line <= last) continue;
+        var at = Pos(head.line + (above ? 0 : 1), 0);
+        cm.replaceRange("\n", at, null, "+insertLine");
+        cm.indentLine(at.line, null, true);
+        newSelection.push({head: at, anchor: at});
+        last = head.line + 1;
+      }
+      cm.setSelections(newSelection);
+    });
+    cm.execCommand("indentAuto");
+  }
+
+  cmds[map[ctrl + "Enter"] = "insertLineAfter"] = function(cm) { return insertLine(cm, false); };
+
+  cmds[map["Shift-" + ctrl + "Enter"] = "insertLineBefore"] = function(cm) { return insertLine(cm, true); };
+
+  function wordAt(cm, pos) {
+    var start = pos.ch, end = start, line = cm.getLine(pos.line);
+    while (start && CodeMirror.isWordChar(line.charAt(start - 1))) --start;
+    while (end < line.length && CodeMirror.isWordChar(line.charAt(end))) ++end;
+    return {from: Pos(pos.line, start), to: Pos(pos.line, end), word: line.slice(start, end)};
+  }
+
+  cmds[map[ctrl + "D"] = "selectNextOccurrence"] = function(cm) {
+    var from = cm.getCursor("from"), to = cm.getCursor("to");
+    var fullWord = cm.state.sublimeFindFullWord == cm.doc.sel;
+    if (CodeMirror.cmpPos(from, to) == 0) {
+      var word = wordAt(cm, from);
+      if (!word.word) return;
+      cm.setSelection(word.from, word.to);
+      fullWord = true;
+    } else {
+      var text = cm.getRange(from, to);
+      var query = fullWord ? new RegExp("\\b" + text + "\\b") : text;
+      var cur = cm.getSearchCursor(query, to);
+      var found = cur.findNext();
+      if (!found) {
+        cur = cm.getSearchCursor(query, Pos(cm.firstLine(), 0));
+        found = cur.findNext();
+      }
+      if (!found || isSelectedRange(cm.listSelections(), cur.from(), cur.to()))
+        return CodeMirror.Pass
+      cm.addSelection(cur.from(), cur.to());
+    }
+    if (fullWord)
+      cm.state.sublimeFindFullWord = cm.doc.sel;
+  };
+
+  function isSelectedRange(ranges, from, to) {
+    for (var i = 0; i < ranges.length; i++)
+      if (ranges[i].from() == from && ranges[i].to() == to) return true
+    return false
+  }
+
+  var mirror = "(){}[]";
+  function selectBetweenBrackets(cm) {
+    var ranges = cm.listSelections(), newRanges = []
+    for (var i = 0; i < ranges.length; i++) {
+      var range = ranges[i], pos = range.head, opening = cm.scanForBracket(pos, -1);
+      if (!opening) return false;
+      for (;;) {
+        var closing = cm.scanForBracket(pos, 1);
+        if (!closing) return false;
+        if (closing.ch == mirror.charAt(mirror.indexOf(opening.ch) + 1)) {
+          newRanges.push({anchor: Pos(opening.pos.line, opening.pos.ch + 1),
+                          head: closing.pos});
+          break;
+        }
+        pos = Pos(closing.pos.line, closing.pos.ch + 1);
+      }
+    }
+    cm.setSelections(newRanges);
+    return true;
+  }
+
+  cmds[map["Shift-" + ctrl + "Space"] = "selectScope"] = function(cm) {
+    selectBetweenBrackets(cm) || cm.execCommand("selectAll");
+  };
+  cmds[map["Shift-" + ctrl + "M"] = "selectBetweenBrackets"] = function(cm) {
+    if (!selectBetweenBrackets(cm)) return CodeMirror.Pass;
+  };
+
+  cmds[map[ctrl + "M"] = "goToBracket"] = function(cm) {
+    cm.extendSelectionsBy(function(range) {
+      var next = cm.scanForBracket(range.head, 1);
+      if (next && CodeMirror.cmpPos(next.pos, range.head) != 0) return next.pos;
+      var prev = cm.scanForBracket(range.head, -1);
+      return prev && Pos(prev.pos.line, prev.pos.ch + 1) || range.head;
+    });
+  };
+
+  var swapLineCombo = mac ? "Cmd-Ctrl-" : "Shift-Ctrl-";
+
+  cmds[map[swapLineCombo + "Up"] = "swapLineUp"] = function(cm) {
+    if (cm.isReadOnly()) return CodeMirror.Pass
+    var ranges = cm.listSelections(), linesToMove = [], at = cm.firstLine() - 1, newSels = [];
+    for (var i = 0; i < ranges.length; i++) {
+      var range = ranges[i], from = range.from().line - 1, to = range.to().line;
+      newSels.push({anchor: Pos(range.anchor.line - 1, range.anchor.ch),
+                    head: Pos(range.head.line - 1, range.head.ch)});
+      if (range.to().ch == 0 && !range.empty()) --to;
+      if (from > at) linesToMove.push(from, to);
+      else if (linesToMove.length) linesToMove[linesToMove.length - 1] = to;
+      at = to;
+    }
+    cm.operation(function() {
+      for (var i = 0; i < linesToMove.length; i += 2) {
+        var from = linesToMove[i], to = linesToMove[i + 1];
+        var line = cm.getLine(from);
+        cm.replaceRange("", Pos(from, 0), Pos(from + 1, 0), "+swapLine");
+        if (to > cm.lastLine())
+          cm.replaceRange("\n" + line, Pos(cm.lastLine()), null, "+swapLine");
+        else
+          cm.replaceRange(line + "\n", Pos(to, 0), null, "+swapLine");
+      }
+      cm.setSelections(newSels);
+      cm.scrollIntoView();
+    });
+  };
+
+  cmds[map[swapLineCombo + "Down"] = "swapLineDown"] = function(cm) {
+    if (cm.isReadOnly()) return CodeMirror.Pass
+    var ranges = cm.listSelections(), linesToMove = [], at = cm.lastLine() + 1;
+    for (var i = ranges.length - 1; i >= 0; i--) {
+      var range = ranges[i], from = range.to().line + 1, to = range.from().line;
+      if (range.to().ch == 0 && !range.empty()) from--;
+      if (from < at) linesToMove.push(from, to);
+      else if (linesToMove.length) linesToMove[linesToMove.length - 1] = to;
+      at = to;
+    }
+    cm.operation(function() {
+      for (var i = linesToMove.length - 2; i >= 0; i -= 2) {
+        var from = linesToMove[i], to = linesToMove[i + 1];
+        var line = cm.getLine(from);
+        if (from == cm.lastLine())
+          cm.replaceRange("", Pos(from - 1), Pos(from), "+swapLine");
+        else
+          cm.replaceRange("", Pos(from, 0), Pos(from + 1, 0), "+swapLine");
+        cm.replaceRange(line + "\n", Pos(to, 0), null, "+swapLine");
+      }
+      cm.scrollIntoView();
+    });
+  };
+
+  cmds[map[ctrl + "/"] = "toggleCommentIndented"] = function(cm) {
+    cm.toggleComment({ indent: true });
+  }
+
+  cmds[map[ctrl + "J"] = "joinLines"] = function(cm) {
+    var ranges = cm.listSelections(), joined = [];
+    for (var i = 0; i < ranges.length; i++) {
+      var range = ranges[i], from = range.from();
+      var start = from.line, end = range.to().line;
+      while (i < ranges.length - 1 && ranges[i + 1].from().line == end)
+        end = ranges[++i].to().line;
+      joined.push({start: start, end: end, anchor: !range.empty() && from});
+    }
+    cm.operation(function() {
+      var offset = 0, ranges = [];
+      for (var i = 0; i < joined.length; i++) {
+        var obj = joined[i];
+        var anchor = obj.anchor && Pos(obj.anchor.line - offset, obj.anchor.ch), head;
+        for (var line = obj.start; line <= obj.end; line++) {
+          var actual = line - offset;
+          if (line == obj.end) head = Pos(actual, cm.getLine(actual).length + 1);
+          if (actual < cm.lastLine()) {
+            cm.replaceRange(" ", Pos(actual), Pos(actual + 1, /^\s*/.exec(cm.getLine(actual + 1))[0].length));
+            ++offset;
+          }
+        }
+        ranges.push({anchor: anchor || head, head: head});
+      }
+      cm.setSelections(ranges, 0);
+    });
+  };
+
+  cmds[map["Shift-" + ctrl + "D"] = "duplicateLine"] = function(cm) {
+    cm.operation(function() {
+      var rangeCount = cm.listSelections().length;
+      for (var i = 0; i < rangeCount; i++) {
+        var range = cm.listSelections()[i];
+        if (range.empty())
+          cm.replaceRange(cm.getLine(range.head.line) + "\n", Pos(range.head.line, 0));
+        else
+          cm.replaceRange(cm.getRange(range.from(), range.to()), range.from());
+      }
+      cm.scrollIntoView();
+    });
+  };
+
+  if (!mac) map[ctrl + "T"] = "transposeChars";
+
+  function sortLines(cm, caseSensitive) {
+    if (cm.isReadOnly()) return CodeMirror.Pass
+    var ranges = cm.listSelections(), toSort = [], selected;
+    for (var i = 0; i < ranges.length; i++) {
+      var range = ranges[i];
+      if (range.empty()) continue;
+      var from = range.from().line, to = range.to().line;
+      while (i < ranges.length - 1 && ranges[i + 1].from().line == to)
+        to = ranges[++i].to().line;
+      if (!ranges[i].to().ch) to--;
+      toSort.push(from, to);
+    }
+    if (toSort.length) selected = true;
+    else toSort.push(cm.firstLine(), cm.lastLine());
+
+    cm.operation(function() {
+      var ranges = [];
+      for (var i = 0; i < toSort.length; i += 2) {
+        var from = toSort[i], to = toSort[i + 1];
+        var start = Pos(from, 0), end = Pos(to);
+        var lines = cm.getRange(start, end, false);
+        if (caseSensitive)
+          lines.sort();
+        else
+          lines.sort(function(a, b) {
+            var au = a.toUpperCase(), bu = b.toUpperCase();
+            if (au != bu) { a = au; b = bu; }
+            return a < b ? -1 : a == b ? 0 : 1;
+          });
+        cm.replaceRange(lines, start, end);
+        if (selected) ranges.push({anchor: start, head: Pos(to + 1, 0)});
+      }
+      if (selected) cm.setSelections(ranges, 0);
+    });
+  }
+
+  cmds[map["F9"] = "sortLines"] = function(cm) { sortLines(cm, true); };
+  cmds[map[ctrl + "F9"] = "sortLinesInsensitive"] = function(cm) { sortLines(cm, false); };
+
+  cmds[map["F2"] = "nextBookmark"] = function(cm) {
+    var marks = cm.state.sublimeBookmarks;
+    if (marks) while (marks.length) {
+      var current = marks.shift();
+      var found = current.find();
+      if (found) {
+        marks.push(current);
+        return cm.setSelection(found.from, found.to);
+      }
+    }
+  };
+
+  cmds[map["Shift-F2"] = "prevBookmark"] = function(cm) {
+    var marks = cm.state.sublimeBookmarks;
+    if (marks) while (marks.length) {
+      marks.unshift(marks.pop());
+      var found = marks[marks.length - 1].find();
+      if (!found)
+        marks.pop();
+      else
+        return cm.setSelection(found.from, found.to);
+    }
+  };
+
+  cmds[map[ctrl + "F2"] = "toggleBookmark"] = function(cm) {
+    var ranges = cm.listSelections();
+    var marks = cm.state.sublimeBookmarks || (cm.state.sublimeBookmarks = []);
+    for (var i = 0; i < ranges.length; i++) {
+      var from = ranges[i].from(), to = ranges[i].to();
+      var found = cm.findMarks(from, to);
+      for (var j = 0; j < found.length; j++) {
+        if (found[j].sublimeBookmark) {
+          found[j].clear();
+          for (var k = 0; k < marks.length; k++)
+            if (marks[k] == found[j])
+              marks.splice(k--, 1);
+          break;
+        }
+      }
+      if (j == found.length)
+        marks.push(cm.markText(from, to, {sublimeBookmark: true, clearWhenEmpty: false}));
+    }
+  };
+
+  cmds[map["Shift-" + ctrl + "F2"] = "clearBookmarks"] = function(cm) {
+    var marks = cm.state.sublimeBookmarks;
+    if (marks) for (var i = 0; i < marks.length; i++) marks[i].clear();
+    marks.length = 0;
+  };
+
+  cmds[map["Alt-F2"] = "selectBookmarks"] = function(cm) {
+    var marks = cm.state.sublimeBookmarks, ranges = [];
+    if (marks) for (var i = 0; i < marks.length; i++) {
+      var found = marks[i].find();
+      if (!found)
+        marks.splice(i--, 0);
+      else
+        ranges.push({anchor: found.from, head: found.to});
+    }
+    if (ranges.length)
+      cm.setSelections(ranges, 0);
+  };
+
+  map["Alt-Q"] = "wrapLines";
+
+  var cK = ctrl + "K ";
+
+  function modifyWordOrSelection(cm, mod) {
+    cm.operation(function() {
+      var ranges = cm.listSelections(), indices = [], replacements = [];
+      for (var i = 0; i < ranges.length; i++) {
+        var range = ranges[i];
+        if (range.empty()) { indices.push(i); replacements.push(""); }
+        else replacements.push(mod(cm.getRange(range.from(), range.to())));
+      }
+      cm.replaceSelections(replacements, "around", "case");
+      for (var i = indices.length - 1, at; i >= 0; i--) {
+        var range = ranges[indices[i]];
+        if (at && CodeMirror.cmpPos(range.head, at) > 0) continue;
+        var word = wordAt(cm, range.head);
+        at = word.from;
+        cm.replaceRange(mod(word.word), word.from, word.to);
+      }
+    });
+  }
+
+  map[cK + ctrl + "Backspace"] = "delLineLeft";
+
+  cmds[map["Backspace"] = "smartBackspace"] = function(cm) {
+    if (cm.somethingSelected()) return CodeMirror.Pass;
+
+    cm.operation(function() {
+      var cursors = cm.listSelections();
+      var indentUnit = cm.getOption("indentUnit");
+
+      for (var i = cursors.length - 1; i >= 0; i--) {
+        var cursor = cursors[i].head;
+        var toStartOfLine = cm.getRange({line: cursor.line, ch: 0}, cursor);
+        var column = CodeMirror.countColumn(toStartOfLine, null, cm.getOption("tabSize"));
+
+        // Delete by one character by default
+        var deletePos = cm.findPosH(cursor, -1, "char", false);
+
+        if (toStartOfLine && !/\S/.test(toStartOfLine) && column % indentUnit == 0) {
+          var prevIndent = new Pos(cursor.line,
+            CodeMirror.findColumn(toStartOfLine, column - indentUnit, indentUnit));
+
+          // Smart delete only if we found a valid prevIndent location
+          if (prevIndent.ch != cursor.ch) deletePos = prevIndent;
+        }
+
+        cm.replaceRange("", deletePos, cursor, "+delete");
+      }
+    });
+  };
+
+  cmds[map[cK + ctrl + "K"] = "delLineRight"] = function(cm) {
+    cm.operation(function() {
+      var ranges = cm.listSelections();
+      for (var i = ranges.length - 1; i >= 0; i--)
+        cm.replaceRange("", ranges[i].anchor, Pos(ranges[i].to().line), "+delete");
+      cm.scrollIntoView();
+    });
+  };
+
+  cmds[map[cK + ctrl + "U"] = "upcaseAtCursor"] = function(cm) {
+    modifyWordOrSelection(cm, function(str) { return str.toUpperCase(); });
+  };
+  cmds[map[cK + ctrl + "L"] = "downcaseAtCursor"] = function(cm) {
+    modifyWordOrSelection(cm, function(str) { return str.toLowerCase(); });
+  };
+
+  cmds[map[cK + ctrl + "Space"] = "setSublimeMark"] = function(cm) {
+    if (cm.state.sublimeMark) cm.state.sublimeMark.clear();
+    cm.state.sublimeMark = cm.setBookmark(cm.getCursor());
+  };
+  cmds[map[cK + ctrl + "A"] = "selectToSublimeMark"] = function(cm) {
+    var found = cm.state.sublimeMark && cm.state.sublimeMark.find();
+    if (found) cm.setSelection(cm.getCursor(), found);
+  };
+  cmds[map[cK + ctrl + "W"] = "deleteToSublimeMark"] = function(cm) {
+    var found = cm.state.sublimeMark && cm.state.sublimeMark.find();
+    if (found) {
+      var from = cm.getCursor(), to = found;
+      if (CodeMirror.cmpPos(from, to) > 0) { var tmp = to; to = from; from = tmp; }
+      cm.state.sublimeKilled = cm.getRange(from, to);
+      cm.replaceRange("", from, to);
+    }
+  };
+  cmds[map[cK + ctrl + "X"] = "swapWithSublimeMark"] = function(cm) {
+    var found = cm.state.sublimeMark && cm.state.sublimeMark.find();
+    if (found) {
+      cm.state.sublimeMark.clear();
+      cm.state.sublimeMark = cm.setBookmark(cm.getCursor());
+      cm.setCursor(found);
+    }
+  };
+  cmds[map[cK + ctrl + "Y"] = "sublimeYank"] = function(cm) {
+    if (cm.state.sublimeKilled != null)
+      cm.replaceSelection(cm.state.sublimeKilled, null, "paste");
+  };
+
+  map[cK + ctrl + "G"] = "clearBookmarks";
+  cmds[map[cK + ctrl + "C"] = "showInCenter"] = function(cm) {
+    var pos = cm.cursorCoords(null, "local");
+    cm.scrollTo(null, (pos.top + pos.bottom) / 2 - cm.getScrollInfo().clientHeight / 2);
+  };
+
+  var selectLinesCombo = mac ? "Ctrl-Shift-" : "Ctrl-Alt-";
+  cmds[map[selectLinesCombo + "Up"] = "selectLinesUpward"] = function(cm) {
+    cm.operation(function() {
+      var ranges = cm.listSelections();
+      for (var i = 0; i < ranges.length; i++) {
+        var range = ranges[i];
+        if (range.head.line > cm.firstLine())
+          cm.addSelection(Pos(range.head.line - 1, range.head.ch));
+      }
+    });
+  };
+  cmds[map[selectLinesCombo + "Down"] = "selectLinesDownward"] = function(cm) {
+    cm.operation(function() {
+      var ranges = cm.listSelections();
+      for (var i = 0; i < ranges.length; i++) {
+        var range = ranges[i];
+        if (range.head.line < cm.lastLine())
+          cm.addSelection(Pos(range.head.line + 1, range.head.ch));
+      }
+    });
+  };
+
+  function getTarget(cm) {
+    var from = cm.getCursor("from"), to = cm.getCursor("to");
+    if (CodeMirror.cmpPos(from, to) == 0) {
+      var word = wordAt(cm, from);
+      if (!word.word) return;
+      from = word.from;
+      to = word.to;
+    }
+    return {from: from, to: to, query: cm.getRange(from, to), word: word};
+  }
+
+  function findAndGoTo(cm, forward) {
+    var target = getTarget(cm);
+    if (!target) return;
+    var query = target.query;
+    var cur = cm.getSearchCursor(query, forward ? target.to : target.from);
+
+    if (forward ? cur.findNext() : cur.findPrevious()) {
+      cm.setSelection(cur.from(), cur.to());
+    } else {
+      cur = cm.getSearchCursor(query, forward ? Pos(cm.firstLine(), 0)
+                                              : cm.clipPos(Pos(cm.lastLine())));
+      if (forward ? cur.findNext() : cur.findPrevious())
+        cm.setSelection(cur.from(), cur.to());
+      else if (target.word)
+        cm.setSelection(target.from, target.to);
+    }
+  };
+  cmds[map[ctrl + "F3"] = "findUnder"] = function(cm) { findAndGoTo(cm, true); };
+  cmds[map["Shift-" + ctrl + "F3"] = "findUnderPrevious"] = function(cm) { findAndGoTo(cm,false); };
+  cmds[map["Alt-F3"] = "findAllUnder"] = function(cm) {
+    var target = getTarget(cm);
+    if (!target) return;
+    var cur = cm.getSearchCursor(target.query);
+    var matches = [];
+    var primaryIndex = -1;
+    while (cur.findNext()) {
+      matches.push({anchor: cur.from(), head: cur.to()});
+      if (cur.from().line <= target.from.line && cur.from().ch <= target.from.ch)
+        primaryIndex++;
+    }
+    cm.setSelections(matches, primaryIndex);
+  };
+
+  map["Shift-" + ctrl + "["] = "fold";
+  map["Shift-" + ctrl + "]"] = "unfold";
+  map[cK + ctrl + "0"] = map[cK + ctrl + "J"] = "unfoldAll";
+
+  map[ctrl + "I"] = "findIncremental";
+  map["Shift-" + ctrl + "I"] = "findIncrementalReverse";
+  map[ctrl + "H"] = "replace";
+  map["F3"] = "findNext";
+  map["Shift-F3"] = "findPrev";
+
+  CodeMirror.normalizeKeyMap(map);
+});
diff --git a/public/codemirror/keymap/vim.js b/public/codemirror/keymap/vim.js
new file mode 100644
index 000000000..b2c404d45
--- /dev/null
+++ b/public/codemirror/keymap/vim.js
@@ -0,0 +1,5117 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+/**
+ * Supported keybindings:
+ *   Too many to list. Refer to defaultKeyMap below.
+ *
+ * Supported Ex commands:
+ *   Refer to defaultExCommandMap below.
+ *
+ * Registers: unnamed, -, a-z, A-Z, 0-9
+ *   (Does not respect the special case for number registers when delete
+ *    operator is made with these commands: %, (, ),  , /, ?, n, N, {, } )
+ *   TODO: Implement the remaining registers.
+ *
+ * Marks: a-z, A-Z, and 0-9
+ *   TODO: Implement the remaining special marks. They have more complex
+ *       behavior.
+ *
+ * Events:
+ *  'vim-mode-change' - raised on the editor anytime the current mode changes,
+ *                      Event object: {mode: "visual", subMode: "linewise"}
+ *
+ * Code structure:
+ *  1. Default keymap
+ *  2. Variable declarations and short basic helpers
+ *  3. Instance (External API) implementation
+ *  4. Internal state tracking objects (input state, counter) implementation
+ *     and instantiation
+ *  5. Key handler (the main command dispatcher) implementation
+ *  6. Motion, operator, and action implementations
+ *  7. Helper functions for the key handler, motions, operators, and actions
+ *  8. Set up Vim to work as a keymap for CodeMirror.
+ *  9. Ex command implementations.
+ */
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../lib/codemirror"), require("../addon/search/searchcursor"), require("../addon/dialog/dialog"), require("../addon/edit/matchbrackets.js"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../lib/codemirror", "../addon/search/searchcursor", "../addon/dialog/dialog", "../addon/edit/matchbrackets"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  'use strict';
+
+  var defaultKeymap = [
+    // Key to key mapping. This goes first to make it possible to override
+    // existing mappings.
+    { keys: '', type: 'keyToKey', toKeys: 'h' },
+    { keys: '', type: 'keyToKey', toKeys: 'l' },
+    { keys: '', type: 'keyToKey', toKeys: 'k' },
+    { keys: '', type: 'keyToKey', toKeys: 'j' },
+    { keys: '', type: 'keyToKey', toKeys: 'l' },
+    { keys: '', type: 'keyToKey', toKeys: 'h', context: 'normal'},
+    { keys: '', type: 'keyToKey', toKeys: 'W' },
+    { keys: '', type: 'keyToKey', toKeys: 'B', context: 'normal' },
+    { keys: '', type: 'keyToKey', toKeys: 'w' },
+    { keys: '', type: 'keyToKey', toKeys: 'b', context: 'normal' },
+    { keys: '', type: 'keyToKey', toKeys: 'j' },
+    { keys: '', type: 'keyToKey', toKeys: 'k' },
+    { keys: '', type: 'keyToKey', toKeys: '' },
+    { keys: '', type: 'keyToKey', toKeys: '' },
+    { keys: '', type: 'keyToKey', toKeys: '', context: 'insert' },
+    { keys: '', type: 'keyToKey', toKeys: '', context: 'insert' },
+    { keys: 's', type: 'keyToKey', toKeys: 'cl', context: 'normal' },
+    { keys: 's', type: 'keyToKey', toKeys: 'c', context: 'visual'},
+    { keys: 'S', type: 'keyToKey', toKeys: 'cc', context: 'normal' },
+    { keys: 'S', type: 'keyToKey', toKeys: 'VdO', context: 'visual' },
+    { keys: '', type: 'keyToKey', toKeys: '0' },
+    { keys: '', type: 'keyToKey', toKeys: '$' },
+    { keys: '', type: 'keyToKey', toKeys: '' },
+    { keys: '', type: 'keyToKey', toKeys: '' },
+    { keys: '', type: 'keyToKey', toKeys: 'j^', context: 'normal' },
+    { keys: '', type: 'action', action: 'toggleOverwrite', context: 'insert' },
+    // Motions
+    { keys: 'H', type: 'motion', motion: 'moveToTopLine', motionArgs: { linewise: true, toJumplist: true }},
+    { keys: 'M', type: 'motion', motion: 'moveToMiddleLine', motionArgs: { linewise: true, toJumplist: true }},
+    { keys: 'L', type: 'motion', motion: 'moveToBottomLine', motionArgs: { linewise: true, toJumplist: true }},
+    { keys: 'h', type: 'motion', motion: 'moveByCharacters', motionArgs: { forward: false }},
+    { keys: 'l', type: 'motion', motion: 'moveByCharacters', motionArgs: { forward: true }},
+    { keys: 'j', type: 'motion', motion: 'moveByLines', motionArgs: { forward: true, linewise: true }},
+    { keys: 'k', type: 'motion', motion: 'moveByLines', motionArgs: { forward: false, linewise: true }},
+    { keys: 'gj', type: 'motion', motion: 'moveByDisplayLines', motionArgs: { forward: true }},
+    { keys: 'gk', type: 'motion', motion: 'moveByDisplayLines', motionArgs: { forward: false }},
+    { keys: 'w', type: 'motion', motion: 'moveByWords', motionArgs: { forward: true, wordEnd: false }},
+    { keys: 'W', type: 'motion', motion: 'moveByWords', motionArgs: { forward: true, wordEnd: false, bigWord: true }},
+    { keys: 'e', type: 'motion', motion: 'moveByWords', motionArgs: { forward: true, wordEnd: true, inclusive: true }},
+    { keys: 'E', type: 'motion', motion: 'moveByWords', motionArgs: { forward: true, wordEnd: true, bigWord: true, inclusive: true }},
+    { keys: 'b', type: 'motion', motion: 'moveByWords', motionArgs: { forward: false, wordEnd: false }},
+    { keys: 'B', type: 'motion', motion: 'moveByWords', motionArgs: { forward: false, wordEnd: false, bigWord: true }},
+    { keys: 'ge', type: 'motion', motion: 'moveByWords', motionArgs: { forward: false, wordEnd: true, inclusive: true }},
+    { keys: 'gE', type: 'motion', motion: 'moveByWords', motionArgs: { forward: false, wordEnd: true, bigWord: true, inclusive: true }},
+    { keys: '{', type: 'motion', motion: 'moveByParagraph', motionArgs: { forward: false, toJumplist: true }},
+    { keys: '}', type: 'motion', motion: 'moveByParagraph', motionArgs: { forward: true, toJumplist: true }},
+    { keys: '', type: 'motion', motion: 'moveByPage', motionArgs: { forward: true }},
+    { keys: '', type: 'motion', motion: 'moveByPage', motionArgs: { forward: false }},
+    { keys: '', type: 'motion', motion: 'moveByScroll', motionArgs: { forward: true, explicitRepeat: true }},
+    { keys: '', type: 'motion', motion: 'moveByScroll', motionArgs: { forward: false, explicitRepeat: true }},
+    { keys: 'gg', type: 'motion', motion: 'moveToLineOrEdgeOfDocument', motionArgs: { forward: false, explicitRepeat: true, linewise: true, toJumplist: true }},
+    { keys: 'G', type: 'motion', motion: 'moveToLineOrEdgeOfDocument', motionArgs: { forward: true, explicitRepeat: true, linewise: true, toJumplist: true }},
+    { keys: '0', type: 'motion', motion: 'moveToStartOfLine' },
+    { keys: '^', type: 'motion', motion: 'moveToFirstNonWhiteSpaceCharacter' },
+    { keys: '+', type: 'motion', motion: 'moveByLines', motionArgs: { forward: true, toFirstChar:true }},
+    { keys: '-', type: 'motion', motion: 'moveByLines', motionArgs: { forward: false, toFirstChar:true }},
+    { keys: '_', type: 'motion', motion: 'moveByLines', motionArgs: { forward: true, toFirstChar:true, repeatOffset:-1 }},
+    { keys: '$', type: 'motion', motion: 'moveToEol', motionArgs: { inclusive: true }},
+    { keys: '%', type: 'motion', motion: 'moveToMatchedSymbol', motionArgs: { inclusive: true, toJumplist: true }},
+    { keys: 'f', type: 'motion', motion: 'moveToCharacter', motionArgs: { forward: true , inclusive: true }},
+    { keys: 'F', type: 'motion', motion: 'moveToCharacter', motionArgs: { forward: false }},
+    { keys: 't', type: 'motion', motion: 'moveTillCharacter', motionArgs: { forward: true, inclusive: true }},
+    { keys: 'T', type: 'motion', motion: 'moveTillCharacter', motionArgs: { forward: false }},
+    { keys: ';', type: 'motion', motion: 'repeatLastCharacterSearch', motionArgs: { forward: true }},
+    { keys: ',', type: 'motion', motion: 'repeatLastCharacterSearch', motionArgs: { forward: false }},
+    { keys: '\'', type: 'motion', motion: 'goToMark', motionArgs: {toJumplist: true, linewise: true}},
+    { keys: '`', type: 'motion', motion: 'goToMark', motionArgs: {toJumplist: true}},
+    { keys: ']`', type: 'motion', motion: 'jumpToMark', motionArgs: { forward: true } },
+    { keys: '[`', type: 'motion', motion: 'jumpToMark', motionArgs: { forward: false } },
+    { keys: ']\'', type: 'motion', motion: 'jumpToMark', motionArgs: { forward: true, linewise: true } },
+    { keys: '[\'', type: 'motion', motion: 'jumpToMark', motionArgs: { forward: false, linewise: true } },
+    // the next two aren't motions but must come before more general motion declarations
+    { keys: ']p', type: 'action', action: 'paste', isEdit: true, actionArgs: { after: true, isEdit: true, matchIndent: true}},
+    { keys: '[p', type: 'action', action: 'paste', isEdit: true, actionArgs: { after: false, isEdit: true, matchIndent: true}},
+    { keys: ']', type: 'motion', motion: 'moveToSymbol', motionArgs: { forward: true, toJumplist: true}},
+    { keys: '[', type: 'motion', motion: 'moveToSymbol', motionArgs: { forward: false, toJumplist: true}},
+    { keys: '|', type: 'motion', motion: 'moveToColumn'},
+    { keys: 'o', type: 'motion', motion: 'moveToOtherHighlightedEnd', context:'visual'},
+    { keys: 'O', type: 'motion', motion: 'moveToOtherHighlightedEnd', motionArgs: {sameLine: true}, context:'visual'},
+    // Operators
+    { keys: 'd', type: 'operator', operator: 'delete' },
+    { keys: 'y', type: 'operator', operator: 'yank' },
+    { keys: 'c', type: 'operator', operator: 'change' },
+    { keys: '>', type: 'operator', operator: 'indent', operatorArgs: { indentRight: true }},
+    { keys: '<', type: 'operator', operator: 'indent', operatorArgs: { indentRight: false }},
+    { keys: 'g~', type: 'operator', operator: 'changeCase' },
+    { keys: 'gu', type: 'operator', operator: 'changeCase', operatorArgs: {toLower: true}, isEdit: true },
+    { keys: 'gU', type: 'operator', operator: 'changeCase', operatorArgs: {toLower: false}, isEdit: true },
+    { keys: 'n', type: 'motion', motion: 'findNext', motionArgs: { forward: true, toJumplist: true }},
+    { keys: 'N', type: 'motion', motion: 'findNext', motionArgs: { forward: false, toJumplist: true }},
+    // Operator-Motion dual commands
+    { keys: 'x', type: 'operatorMotion', operator: 'delete', motion: 'moveByCharacters', motionArgs: { forward: true }, operatorMotionArgs: { visualLine: false }},
+    { keys: 'X', type: 'operatorMotion', operator: 'delete', motion: 'moveByCharacters', motionArgs: { forward: false }, operatorMotionArgs: { visualLine: true }},
+    { keys: 'D', type: 'operatorMotion', operator: 'delete', motion: 'moveToEol', motionArgs: { inclusive: true }, context: 'normal'},
+    { keys: 'D', type: 'operator', operator: 'delete', operatorArgs: { linewise: true }, context: 'visual'},
+    { keys: 'Y', type: 'operatorMotion', operator: 'yank', motion: 'expandToLine', motionArgs: { linewise: true }, context: 'normal'},
+    { keys: 'Y', type: 'operator', operator: 'yank', operatorArgs: { linewise: true }, context: 'visual'},
+    { keys: 'C', type: 'operatorMotion', operator: 'change', motion: 'moveToEol', motionArgs: { inclusive: true }, context: 'normal'},
+    { keys: 'C', type: 'operator', operator: 'change', operatorArgs: { linewise: true }, context: 'visual'},
+    { keys: '~', type: 'operatorMotion', operator: 'changeCase', motion: 'moveByCharacters', motionArgs: { forward: true }, operatorArgs: { shouldMoveCursor: true }, context: 'normal'},
+    { keys: '~', type: 'operator', operator: 'changeCase', context: 'visual'},
+    { keys: '', type: 'operatorMotion', operator: 'delete', motion: 'moveByWords', motionArgs: { forward: false, wordEnd: false }, context: 'insert' },
+    // Actions
+    { keys: '', type: 'action', action: 'jumpListWalk', actionArgs: { forward: true }},
+    { keys: '', type: 'action', action: 'jumpListWalk', actionArgs: { forward: false }},
+    { keys: '', type: 'action', action: 'scroll', actionArgs: { forward: true, linewise: true }},
+    { keys: '', type: 'action', action: 'scroll', actionArgs: { forward: false, linewise: true }},
+    { keys: 'a', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'charAfter' }, context: 'normal' },
+    { keys: 'A', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'eol' }, context: 'normal' },
+    { keys: 'A', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'endOfSelectedArea' }, context: 'visual' },
+    { keys: 'i', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'inplace' }, context: 'normal' },
+    { keys: 'I', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'firstNonBlank'}, context: 'normal' },
+    { keys: 'I', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { insertAt: 'startOfSelectedArea' }, context: 'visual' },
+    { keys: 'o', type: 'action', action: 'newLineAndEnterInsertMode', isEdit: true, interlaceInsertRepeat: true, actionArgs: { after: true }, context: 'normal' },
+    { keys: 'O', type: 'action', action: 'newLineAndEnterInsertMode', isEdit: true, interlaceInsertRepeat: true, actionArgs: { after: false }, context: 'normal' },
+    { keys: 'v', type: 'action', action: 'toggleVisualMode' },
+    { keys: 'V', type: 'action', action: 'toggleVisualMode', actionArgs: { linewise: true }},
+    { keys: '', type: 'action', action: 'toggleVisualMode', actionArgs: { blockwise: true }},
+    { keys: '', type: 'action', action: 'toggleVisualMode', actionArgs: { blockwise: true }},
+    { keys: 'gv', type: 'action', action: 'reselectLastSelection' },
+    { keys: 'J', type: 'action', action: 'joinLines', isEdit: true },
+    { keys: 'p', type: 'action', action: 'paste', isEdit: true, actionArgs: { after: true, isEdit: true }},
+    { keys: 'P', type: 'action', action: 'paste', isEdit: true, actionArgs: { after: false, isEdit: true }},
+    { keys: 'r', type: 'action', action: 'replace', isEdit: true },
+    { keys: '@', type: 'action', action: 'replayMacro' },
+    { keys: 'q', type: 'action', action: 'enterMacroRecordMode' },
+    // Handle Replace-mode as a special case of insert mode.
+    { keys: 'R', type: 'action', action: 'enterInsertMode', isEdit: true, actionArgs: { replace: true }},
+    { keys: 'u', type: 'action', action: 'undo', context: 'normal' },
+    { keys: 'u', type: 'operator', operator: 'changeCase', operatorArgs: {toLower: true}, context: 'visual', isEdit: true },
+    { keys: 'U', type: 'operator', operator: 'changeCase', operatorArgs: {toLower: false}, context: 'visual', isEdit: true },
+    { keys: '', type: 'action', action: 'redo' },
+    { keys: 'm', type: 'action', action: 'setMark' },
+    { keys: '"', type: 'action', action: 'setRegister' },
+    { keys: 'zz', type: 'action', action: 'scrollToCursor', actionArgs: { position: 'center' }},
+    { keys: 'z.', type: 'action', action: 'scrollToCursor', actionArgs: { position: 'center' }, motion: 'moveToFirstNonWhiteSpaceCharacter' },
+    { keys: 'zt', type: 'action', action: 'scrollToCursor', actionArgs: { position: 'top' }},
+    { keys: 'z', type: 'action', action: 'scrollToCursor', actionArgs: { position: 'top' }, motion: 'moveToFirstNonWhiteSpaceCharacter' },
+    { keys: 'z-', type: 'action', action: 'scrollToCursor', actionArgs: { position: 'bottom' }},
+    { keys: 'zb', type: 'action', action: 'scrollToCursor', actionArgs: { position: 'bottom' }, motion: 'moveToFirstNonWhiteSpaceCharacter' },
+    { keys: '.', type: 'action', action: 'repeatLastEdit' },
+    { keys: '', type: 'action', action: 'incrementNumberToken', isEdit: true, actionArgs: {increase: true, backtrack: false}},
+    { keys: '', type: 'action', action: 'incrementNumberToken', isEdit: true, actionArgs: {increase: false, backtrack: false}},
+    { keys: '', type: 'action', action: 'indent', actionArgs: { indentRight: true }, context: 'insert' },
+    { keys: '', type: 'action', action: 'indent', actionArgs: { indentRight: false }, context: 'insert' },
+    // Text object motions
+    { keys: 'a', type: 'motion', motion: 'textObjectManipulation' },
+    { keys: 'i', type: 'motion', motion: 'textObjectManipulation', motionArgs: { textObjectInner: true }},
+    // Search
+    { keys: '/', type: 'search', searchArgs: { forward: true, querySrc: 'prompt', toJumplist: true }},
+    { keys: '?', type: 'search', searchArgs: { forward: false, querySrc: 'prompt', toJumplist: true }},
+    { keys: '*', type: 'search', searchArgs: { forward: true, querySrc: 'wordUnderCursor', wholeWordOnly: true, toJumplist: true }},
+    { keys: '#', type: 'search', searchArgs: { forward: false, querySrc: 'wordUnderCursor', wholeWordOnly: true, toJumplist: true }},
+    { keys: 'g*', type: 'search', searchArgs: { forward: true, querySrc: 'wordUnderCursor', toJumplist: true }},
+    { keys: 'g#', type: 'search', searchArgs: { forward: false, querySrc: 'wordUnderCursor', toJumplist: true }},
+    // Ex command
+    { keys: ':', type: 'ex' }
+  ];
+
+  /**
+   * Ex commands
+   * Care must be taken when adding to the default Ex command map. For any
+   * pair of commands that have a shared prefix, at least one of their
+   * shortNames must not match the prefix of the other command.
+   */
+  var defaultExCommandMap = [
+    { name: 'colorscheme', shortName: 'colo' },
+    { name: 'map' },
+    { name: 'imap', shortName: 'im' },
+    { name: 'nmap', shortName: 'nm' },
+    { name: 'vmap', shortName: 'vm' },
+    { name: 'unmap' },
+    { name: 'write', shortName: 'w' },
+    { name: 'undo', shortName: 'u' },
+    { name: 'redo', shortName: 'red' },
+    { name: 'set', shortName: 'se' },
+    { name: 'set', shortName: 'se' },
+    { name: 'setlocal', shortName: 'setl' },
+    { name: 'setglobal', shortName: 'setg' },
+    { name: 'sort', shortName: 'sor' },
+    { name: 'substitute', shortName: 's', possiblyAsync: true },
+    { name: 'nohlsearch', shortName: 'noh' },
+    { name: 'yank', shortName: 'y' },
+    { name: 'delmarks', shortName: 'delm' },
+    { name: 'registers', shortName: 'reg', excludeFromCommandHistory: true },
+    { name: 'global', shortName: 'g' }
+  ];
+
+  var Pos = CodeMirror.Pos;
+
+  var Vim = function() {
+    function enterVimMode(cm) {
+      cm.setOption('disableInput', true);
+      cm.setOption('showCursorWhenSelecting', false);
+      CodeMirror.signal(cm, "vim-mode-change", {mode: "normal"});
+      cm.on('cursorActivity', onCursorActivity);
+      maybeInitVimState(cm);
+      CodeMirror.on(cm.getInputField(), 'paste', getOnPasteFn(cm));
+    }
+
+    function leaveVimMode(cm) {
+      cm.setOption('disableInput', false);
+      cm.off('cursorActivity', onCursorActivity);
+      CodeMirror.off(cm.getInputField(), 'paste', getOnPasteFn(cm));
+      cm.state.vim = null;
+    }
+
+    function detachVimMap(cm, next) {
+      if (this == CodeMirror.keyMap.vim)
+        CodeMirror.rmClass(cm.getWrapperElement(), "cm-fat-cursor");
+
+      if (!next || next.attach != attachVimMap)
+        leaveVimMode(cm, false);
+    }
+    function attachVimMap(cm, prev) {
+      if (this == CodeMirror.keyMap.vim)
+        CodeMirror.addClass(cm.getWrapperElement(), "cm-fat-cursor");
+
+      if (!prev || prev.attach != attachVimMap)
+        enterVimMode(cm);
+    }
+
+    // Deprecated, simply setting the keymap works again.
+    CodeMirror.defineOption('vimMode', false, function(cm, val, prev) {
+      if (val && cm.getOption("keyMap") != "vim")
+        cm.setOption("keyMap", "vim");
+      else if (!val && prev != CodeMirror.Init && /^vim/.test(cm.getOption("keyMap")))
+        cm.setOption("keyMap", "default");
+    });
+
+    function cmKey(key, cm) {
+      if (!cm) { return undefined; }
+      if (this[key]) { return this[key]; }
+      var vimKey = cmKeyToVimKey(key);
+      if (!vimKey) {
+        return false;
+      }
+      var cmd = CodeMirror.Vim.findKey(cm, vimKey);
+      if (typeof cmd == 'function') {
+        CodeMirror.signal(cm, 'vim-keypress', vimKey);
+      }
+      return cmd;
+    }
+
+    var modifiers = {'Shift': 'S', 'Ctrl': 'C', 'Alt': 'A', 'Cmd': 'D', 'Mod': 'A'};
+    var specialKeys = {Enter:'CR',Backspace:'BS',Delete:'Del',Insert:'Ins'};
+    function cmKeyToVimKey(key) {
+      if (key.charAt(0) == '\'') {
+        // Keypress character binding of format "'a'"
+        return key.charAt(1);
+      }
+      var pieces = key.split(/-(?!$)/);
+      var lastPiece = pieces[pieces.length - 1];
+      if (pieces.length == 1 && pieces[0].length == 1) {
+        // No-modifier bindings use literal character bindings above. Skip.
+        return false;
+      } else if (pieces.length == 2 && pieces[0] == 'Shift' && lastPiece.length == 1) {
+        // Ignore Shift+char bindings as they should be handled by literal character.
+        return false;
+      }
+      var hasCharacter = false;
+      for (var i = 0; i < pieces.length; i++) {
+        var piece = pieces[i];
+        if (piece in modifiers) { pieces[i] = modifiers[piece]; }
+        else { hasCharacter = true; }
+        if (piece in specialKeys) { pieces[i] = specialKeys[piece]; }
+      }
+      if (!hasCharacter) {
+        // Vim does not support modifier only keys.
+        return false;
+      }
+      // TODO: Current bindings expect the character to be lower case, but
+      // it looks like vim key notation uses upper case.
+      if (isUpperCase(lastPiece)) {
+        pieces[pieces.length - 1] = lastPiece.toLowerCase();
+      }
+      return '<' + pieces.join('-') + '>';
+    }
+
+    function getOnPasteFn(cm) {
+      var vim = cm.state.vim;
+      if (!vim.onPasteFn) {
+        vim.onPasteFn = function() {
+          if (!vim.insertMode) {
+            cm.setCursor(offsetCursor(cm.getCursor(), 0, 1));
+            actions.enterInsertMode(cm, {}, vim);
+          }
+        };
+      }
+      return vim.onPasteFn;
+    }
+
+    var numberRegex = /[\d]/;
+    var wordCharTest = [CodeMirror.isWordChar, function(ch) {
+      return ch && !CodeMirror.isWordChar(ch) && !/\s/.test(ch);
+    }], bigWordCharTest = [function(ch) {
+      return /\S/.test(ch);
+    }];
+    function makeKeyRange(start, size) {
+      var keys = [];
+      for (var i = start; i < start + size; i++) {
+        keys.push(String.fromCharCode(i));
+      }
+      return keys;
+    }
+    var upperCaseAlphabet = makeKeyRange(65, 26);
+    var lowerCaseAlphabet = makeKeyRange(97, 26);
+    var numbers = makeKeyRange(48, 10);
+    var validMarks = [].concat(upperCaseAlphabet, lowerCaseAlphabet, numbers, ['<', '>']);
+    var validRegisters = [].concat(upperCaseAlphabet, lowerCaseAlphabet, numbers, ['-', '"', '.', ':', '/']);
+
+    function isLine(cm, line) {
+      return line >= cm.firstLine() && line <= cm.lastLine();
+    }
+    function isLowerCase(k) {
+      return (/^[a-z]$/).test(k);
+    }
+    function isMatchableSymbol(k) {
+      return '()[]{}'.indexOf(k) != -1;
+    }
+    function isNumber(k) {
+      return numberRegex.test(k);
+    }
+    function isUpperCase(k) {
+      return (/^[A-Z]$/).test(k);
+    }
+    function isWhiteSpaceString(k) {
+      return (/^\s*$/).test(k);
+    }
+    function inArray(val, arr) {
+      for (var i = 0; i < arr.length; i++) {
+        if (arr[i] == val) {
+          return true;
+        }
+      }
+      return false;
+    }
+
+    var options = {};
+    function defineOption(name, defaultValue, type, aliases, callback) {
+      if (defaultValue === undefined && !callback) {
+        throw Error('defaultValue is required unless callback is provided');
+      }
+      if (!type) { type = 'string'; }
+      options[name] = {
+        type: type,
+        defaultValue: defaultValue,
+        callback: callback
+      };
+      if (aliases) {
+        for (var i = 0; i < aliases.length; i++) {
+          options[aliases[i]] = options[name];
+        }
+      }
+      if (defaultValue) {
+        setOption(name, defaultValue);
+      }
+    }
+
+    function setOption(name, value, cm, cfg) {
+      var option = options[name];
+      cfg = cfg || {};
+      var scope = cfg.scope;
+      if (!option) {
+        throw Error('Unknown option: ' + name);
+      }
+      if (option.type == 'boolean') {
+        if (value && value !== true) {
+          throw Error('Invalid argument: ' + name + '=' + value);
+        } else if (value !== false) {
+          // Boolean options are set to true if value is not defined.
+          value = true;
+        }
+      }
+      if (option.callback) {
+        if (scope !== 'local') {
+          option.callback(value, undefined);
+        }
+        if (scope !== 'global' && cm) {
+          option.callback(value, cm);
+        }
+      } else {
+        if (scope !== 'local') {
+          option.value = option.type == 'boolean' ? !!value : value;
+        }
+        if (scope !== 'global' && cm) {
+          cm.state.vim.options[name] = {value: value};
+        }
+      }
+    }
+
+    function getOption(name, cm, cfg) {
+      var option = options[name];
+      cfg = cfg || {};
+      var scope = cfg.scope;
+      if (!option) {
+        throw Error('Unknown option: ' + name);
+      }
+      if (option.callback) {
+        var local = cm && option.callback(undefined, cm);
+        if (scope !== 'global' && local !== undefined) {
+          return local;
+        }
+        if (scope !== 'local') {
+          return option.callback();
+        }
+        return;
+      } else {
+        var local = (scope !== 'global') && (cm && cm.state.vim.options[name]);
+        return (local || (scope !== 'local') && option || {}).value;
+      }
+    }
+
+    defineOption('filetype', undefined, 'string', ['ft'], function(name, cm) {
+      // Option is local. Do nothing for global.
+      if (cm === undefined) {
+        return;
+      }
+      // The 'filetype' option proxies to the CodeMirror 'mode' option.
+      if (name === undefined) {
+        var mode = cm.getOption('mode');
+        return mode == 'null' ? '' : mode;
+      } else {
+        var mode = name == '' ? 'null' : name;
+        cm.setOption('mode', mode);
+      }
+    });
+
+    var createCircularJumpList = function() {
+      var size = 100;
+      var pointer = -1;
+      var head = 0;
+      var tail = 0;
+      var buffer = new Array(size);
+      function add(cm, oldCur, newCur) {
+        var current = pointer % size;
+        var curMark = buffer[current];
+        function useNextSlot(cursor) {
+          var next = ++pointer % size;
+          var trashMark = buffer[next];
+          if (trashMark) {
+            trashMark.clear();
+          }
+          buffer[next] = cm.setBookmark(cursor);
+        }
+        if (curMark) {
+          var markPos = curMark.find();
+          // avoid recording redundant cursor position
+          if (markPos && !cursorEqual(markPos, oldCur)) {
+            useNextSlot(oldCur);
+          }
+        } else {
+          useNextSlot(oldCur);
+        }
+        useNextSlot(newCur);
+        head = pointer;
+        tail = pointer - size + 1;
+        if (tail < 0) {
+          tail = 0;
+        }
+      }
+      function move(cm, offset) {
+        pointer += offset;
+        if (pointer > head) {
+          pointer = head;
+        } else if (pointer < tail) {
+          pointer = tail;
+        }
+        var mark = buffer[(size + pointer) % size];
+        // skip marks that are temporarily removed from text buffer
+        if (mark && !mark.find()) {
+          var inc = offset > 0 ? 1 : -1;
+          var newCur;
+          var oldCur = cm.getCursor();
+          do {
+            pointer += inc;
+            mark = buffer[(size + pointer) % size];
+            // skip marks that are the same as current position
+            if (mark &&
+                (newCur = mark.find()) &&
+                !cursorEqual(oldCur, newCur)) {
+              break;
+            }
+          } while (pointer < head && pointer > tail);
+        }
+        return mark;
+      }
+      return {
+        cachedCursor: undefined, //used for # and * jumps
+        add: add,
+        move: move
+      };
+    };
+
+    // Returns an object to track the changes associated insert mode.  It
+    // clones the object that is passed in, or creates an empty object one if
+    // none is provided.
+    var createInsertModeChanges = function(c) {
+      if (c) {
+        // Copy construction
+        return {
+          changes: c.changes,
+          expectCursorActivityForChange: c.expectCursorActivityForChange
+        };
+      }
+      return {
+        // Change list
+        changes: [],
+        // Set to true on change, false on cursorActivity.
+        expectCursorActivityForChange: false
+      };
+    };
+
+    function MacroModeState() {
+      this.latestRegister = undefined;
+      this.isPlaying = false;
+      this.isRecording = false;
+      this.replaySearchQueries = [];
+      this.onRecordingDone = undefined;
+      this.lastInsertModeChanges = createInsertModeChanges();
+    }
+    MacroModeState.prototype = {
+      exitMacroRecordMode: function() {
+        var macroModeState = vimGlobalState.macroModeState;
+        if (macroModeState.onRecordingDone) {
+          macroModeState.onRecordingDone(); // close dialog
+        }
+        macroModeState.onRecordingDone = undefined;
+        macroModeState.isRecording = false;
+      },
+      enterMacroRecordMode: function(cm, registerName) {
+        var register =
+            vimGlobalState.registerController.getRegister(registerName);
+        if (register) {
+          register.clear();
+          this.latestRegister = registerName;
+          if (cm.openDialog) {
+            this.onRecordingDone = cm.openDialog(
+                '(recording)['+registerName+']', null, {bottom:true});
+          }
+          this.isRecording = true;
+        }
+      }
+    };
+
+    function maybeInitVimState(cm) {
+      if (!cm.state.vim) {
+        // Store instance state in the CodeMirror object.
+        cm.state.vim = {
+          inputState: new InputState(),
+          // Vim's input state that triggered the last edit, used to repeat
+          // motions and operators with '.'.
+          lastEditInputState: undefined,
+          // Vim's action command before the last edit, used to repeat actions
+          // with '.' and insert mode repeat.
+          lastEditActionCommand: undefined,
+          // When using jk for navigation, if you move from a longer line to a
+          // shorter line, the cursor may clip to the end of the shorter line.
+          // If j is pressed again and cursor goes to the next line, the
+          // cursor should go back to its horizontal position on the longer
+          // line if it can. This is to keep track of the horizontal position.
+          lastHPos: -1,
+          // Doing the same with screen-position for gj/gk
+          lastHSPos: -1,
+          // The last motion command run. Cleared if a non-motion command gets
+          // executed in between.
+          lastMotion: null,
+          marks: {},
+          // Mark for rendering fake cursor for visual mode.
+          fakeCursor: null,
+          insertMode: false,
+          // Repeat count for changes made in insert mode, triggered by key
+          // sequences like 3,i. Only exists when insertMode is true.
+          insertModeRepeat: undefined,
+          visualMode: false,
+          // If we are in visual line mode. No effect if visualMode is false.
+          visualLine: false,
+          visualBlock: false,
+          lastSelection: null,
+          lastPastedText: null,
+          sel: {},
+          // Buffer-local/window-local values of vim options.
+          options: {}
+        };
+      }
+      return cm.state.vim;
+    }
+    var vimGlobalState;
+    function resetVimGlobalState() {
+      vimGlobalState = {
+        // The current search query.
+        searchQuery: null,
+        // Whether we are searching backwards.
+        searchIsReversed: false,
+        // Replace part of the last substituted pattern
+        lastSubstituteReplacePart: undefined,
+        jumpList: createCircularJumpList(),
+        macroModeState: new MacroModeState,
+        // Recording latest f, t, F or T motion command.
+        lastCharacterSearch: {increment:0, forward:true, selectedCharacter:''},
+        registerController: new RegisterController({}),
+        // search history buffer
+        searchHistoryController: new HistoryController({}),
+        // ex Command history buffer
+        exCommandHistoryController : new HistoryController({})
+      };
+      for (var optionName in options) {
+        var option = options[optionName];
+        option.value = option.defaultValue;
+      }
+    }
+
+    var lastInsertModeKeyTimer;
+    var vimApi= {
+      buildKeyMap: function() {
+        // TODO: Convert keymap into dictionary format for fast lookup.
+      },
+      // Testing hook, though it might be useful to expose the register
+      // controller anyways.
+      getRegisterController: function() {
+        return vimGlobalState.registerController;
+      },
+      // Testing hook.
+      resetVimGlobalState_: resetVimGlobalState,
+
+      // Testing hook.
+      getVimGlobalState_: function() {
+        return vimGlobalState;
+      },
+
+      // Testing hook.
+      maybeInitVimState_: maybeInitVimState,
+
+      suppressErrorLogging: false,
+
+      InsertModeKey: InsertModeKey,
+      map: function(lhs, rhs, ctx) {
+        // Add user defined key bindings.
+        exCommandDispatcher.map(lhs, rhs, ctx);
+      },
+      unmap: function(lhs, ctx) {
+        exCommandDispatcher.unmap(lhs, ctx);
+      },
+      // TODO: Expose setOption and getOption as instance methods. Need to decide how to namespace
+      // them, or somehow make them work with the existing CodeMirror setOption/getOption API.
+      setOption: setOption,
+      getOption: getOption,
+      defineOption: defineOption,
+      defineEx: function(name, prefix, func){
+        if (!prefix) {
+          prefix = name;
+        } else if (name.indexOf(prefix) !== 0) {
+          throw new Error('(Vim.defineEx) "'+prefix+'" is not a prefix of "'+name+'", command not registered');
+        }
+        exCommands[name]=func;
+        exCommandDispatcher.commandMap_[prefix]={name:name, shortName:prefix, type:'api'};
+      },
+      handleKey: function (cm, key, origin) {
+        var command = this.findKey(cm, key, origin);
+        if (typeof command === 'function') {
+          return command();
+        }
+      },
+      /**
+       * This is the outermost function called by CodeMirror, after keys have
+       * been mapped to their Vim equivalents.
+       *
+       * Finds a command based on the key (and cached keys if there is a
+       * multi-key sequence). Returns `undefined` if no key is matched, a noop
+       * function if a partial match is found (multi-key), and a function to
+       * execute the bound command if a a key is matched. The function always
+       * returns true.
+       */
+      findKey: function(cm, key, origin) {
+        var vim = maybeInitVimState(cm);
+        function handleMacroRecording() {
+          var macroModeState = vimGlobalState.macroModeState;
+          if (macroModeState.isRecording) {
+            if (key == 'q') {
+              macroModeState.exitMacroRecordMode();
+              clearInputState(cm);
+              return true;
+            }
+            if (origin != 'mapping') {
+              logKey(macroModeState, key);
+            }
+          }
+        }
+        function handleEsc() {
+          if (key == '') {
+            // Clear input state and get back to normal mode.
+            clearInputState(cm);
+            if (vim.visualMode) {
+              exitVisualMode(cm);
+            } else if (vim.insertMode) {
+              exitInsertMode(cm);
+            }
+            return true;
+          }
+        }
+        function doKeyToKey(keys) {
+          // TODO: prevent infinite recursion.
+          var match;
+          while (keys) {
+            // Pull off one command key, which is either a single character
+            // or a special sequence wrapped in '<' and '>', e.g. ''.
+            match = (/<\w+-.+?>|<\w+>|./).exec(keys);
+            key = match[0];
+            keys = keys.substring(match.index + key.length);
+            CodeMirror.Vim.handleKey(cm, key, 'mapping');
+          }
+        }
+
+        function handleKeyInsertMode() {
+          if (handleEsc()) { return true; }
+          var keys = vim.inputState.keyBuffer = vim.inputState.keyBuffer + key;
+          var keysAreChars = key.length == 1;
+          var match = commandDispatcher.matchCommand(keys, defaultKeymap, vim.inputState, 'insert');
+          // Need to check all key substrings in insert mode.
+          while (keys.length > 1 && match.type != 'full') {
+            var keys = vim.inputState.keyBuffer = keys.slice(1);
+            var thisMatch = commandDispatcher.matchCommand(keys, defaultKeymap, vim.inputState, 'insert');
+            if (thisMatch.type != 'none') { match = thisMatch; }
+          }
+          if (match.type == 'none') { clearInputState(cm); return false; }
+          else if (match.type == 'partial') {
+            if (lastInsertModeKeyTimer) { window.clearTimeout(lastInsertModeKeyTimer); }
+            lastInsertModeKeyTimer = window.setTimeout(
+              function() { if (vim.insertMode && vim.inputState.keyBuffer) { clearInputState(cm); } },
+              getOption('insertModeEscKeysTimeout'));
+            return !keysAreChars;
+          }
+
+          if (lastInsertModeKeyTimer) { window.clearTimeout(lastInsertModeKeyTimer); }
+          if (keysAreChars) {
+            var selections = cm.listSelections();
+            for (var i = 0; i < selections.length; i++) {
+              var here = selections[i].head;
+              cm.replaceRange('', offsetCursor(here, 0, -(keys.length - 1)), here, '+input');
+            }
+            vimGlobalState.macroModeState.lastInsertModeChanges.changes.pop();
+          }
+          clearInputState(cm);
+          return match.command;
+        }
+
+        function handleKeyNonInsertMode() {
+          if (handleMacroRecording() || handleEsc()) { return true; };
+
+          var keys = vim.inputState.keyBuffer = vim.inputState.keyBuffer + key;
+          if (/^[1-9]\d*$/.test(keys)) { return true; }
+
+          var keysMatcher = /^(\d*)(.*)$/.exec(keys);
+          if (!keysMatcher) { clearInputState(cm); return false; }
+          var context = vim.visualMode ? 'visual' :
+                                         'normal';
+          var match = commandDispatcher.matchCommand(keysMatcher[2] || keysMatcher[1], defaultKeymap, vim.inputState, context);
+          if (match.type == 'none') { clearInputState(cm); return false; }
+          else if (match.type == 'partial') { return true; }
+
+          vim.inputState.keyBuffer = '';
+          var keysMatcher = /^(\d*)(.*)$/.exec(keys);
+          if (keysMatcher[1] && keysMatcher[1] != '0') {
+            vim.inputState.pushRepeatDigit(keysMatcher[1]);
+          }
+          return match.command;
+        }
+
+        var command;
+        if (vim.insertMode) { command = handleKeyInsertMode(); }
+        else { command = handleKeyNonInsertMode(); }
+        if (command === false) {
+          return undefined;
+        } else if (command === true) {
+          // TODO: Look into using CodeMirror's multi-key handling.
+          // Return no-op since we are caching the key. Counts as handled, but
+          // don't want act on it just yet.
+          return function() { return true; };
+        } else {
+          return function() {
+            return cm.operation(function() {
+              cm.curOp.isVimOp = true;
+              try {
+                if (command.type == 'keyToKey') {
+                  doKeyToKey(command.toKeys);
+                } else {
+                  commandDispatcher.processCommand(cm, vim, command);
+                }
+              } catch (e) {
+                // clear VIM state in case it's in a bad state.
+                cm.state.vim = undefined;
+                maybeInitVimState(cm);
+                if (!CodeMirror.Vim.suppressErrorLogging) {
+                  console['log'](e);
+                }
+                throw e;
+              }
+              return true;
+            });
+          };
+        }
+      },
+      handleEx: function(cm, input) {
+        exCommandDispatcher.processCommand(cm, input);
+      },
+
+      defineMotion: defineMotion,
+      defineAction: defineAction,
+      defineOperator: defineOperator,
+      mapCommand: mapCommand,
+      _mapCommand: _mapCommand,
+
+      defineRegister: defineRegister,
+
+      exitVisualMode: exitVisualMode,
+      exitInsertMode: exitInsertMode
+    };
+
+    // Represents the current input state.
+    function InputState() {
+      this.prefixRepeat = [];
+      this.motionRepeat = [];
+
+      this.operator = null;
+      this.operatorArgs = null;
+      this.motion = null;
+      this.motionArgs = null;
+      this.keyBuffer = []; // For matching multi-key commands.
+      this.registerName = null; // Defaults to the unnamed register.
+    }
+    InputState.prototype.pushRepeatDigit = function(n) {
+      if (!this.operator) {
+        this.prefixRepeat = this.prefixRepeat.concat(n);
+      } else {
+        this.motionRepeat = this.motionRepeat.concat(n);
+      }
+    };
+    InputState.prototype.getRepeat = function() {
+      var repeat = 0;
+      if (this.prefixRepeat.length > 0 || this.motionRepeat.length > 0) {
+        repeat = 1;
+        if (this.prefixRepeat.length > 0) {
+          repeat *= parseInt(this.prefixRepeat.join(''), 10);
+        }
+        if (this.motionRepeat.length > 0) {
+          repeat *= parseInt(this.motionRepeat.join(''), 10);
+        }
+      }
+      return repeat;
+    };
+
+    function clearInputState(cm, reason) {
+      cm.state.vim.inputState = new InputState();
+      CodeMirror.signal(cm, 'vim-command-done', reason);
+    }
+
+    /*
+     * Register stores information about copy and paste registers.  Besides
+     * text, a register must store whether it is linewise (i.e., when it is
+     * pasted, should it insert itself into a new line, or should the text be
+     * inserted at the cursor position.)
+     */
+    function Register(text, linewise, blockwise) {
+      this.clear();
+      this.keyBuffer = [text || ''];
+      this.insertModeChanges = [];
+      this.searchQueries = [];
+      this.linewise = !!linewise;
+      this.blockwise = !!blockwise;
+    }
+    Register.prototype = {
+      setText: function(text, linewise, blockwise) {
+        this.keyBuffer = [text || ''];
+        this.linewise = !!linewise;
+        this.blockwise = !!blockwise;
+      },
+      pushText: function(text, linewise) {
+        // if this register has ever been set to linewise, use linewise.
+        if (linewise) {
+          if (!this.linewise) {
+            this.keyBuffer.push('\n');
+          }
+          this.linewise = true;
+        }
+        this.keyBuffer.push(text);
+      },
+      pushInsertModeChanges: function(changes) {
+        this.insertModeChanges.push(createInsertModeChanges(changes));
+      },
+      pushSearchQuery: function(query) {
+        this.searchQueries.push(query);
+      },
+      clear: function() {
+        this.keyBuffer = [];
+        this.insertModeChanges = [];
+        this.searchQueries = [];
+        this.linewise = false;
+      },
+      toString: function() {
+        return this.keyBuffer.join('');
+      }
+    };
+
+    /**
+     * Defines an external register.
+     *
+     * The name should be a single character that will be used to reference the register.
+     * The register should support setText, pushText, clear, and toString(). See Register
+     * for a reference implementation.
+     */
+    function defineRegister(name, register) {
+      var registers = vimGlobalState.registerController.registers[name];
+      if (!name || name.length != 1) {
+        throw Error('Register name must be 1 character');
+      }
+      if (registers[name]) {
+        throw Error('Register already defined ' + name);
+      }
+      registers[name] = register;
+      validRegisters.push(name);
+    }
+
+    /*
+     * vim registers allow you to keep many independent copy and paste buffers.
+     * See http://usevim.com/2012/04/13/registers/ for an introduction.
+     *
+     * RegisterController keeps the state of all the registers.  An initial
+     * state may be passed in.  The unnamed register '"' will always be
+     * overridden.
+     */
+    function RegisterController(registers) {
+      this.registers = registers;
+      this.unnamedRegister = registers['"'] = new Register();
+      registers['.'] = new Register();
+      registers[':'] = new Register();
+      registers['/'] = new Register();
+    }
+    RegisterController.prototype = {
+      pushText: function(registerName, operator, text, linewise, blockwise) {
+        if (linewise && text.charAt(0) == '\n') {
+          text = text.slice(1) + '\n';
+        }
+        if (linewise && text.charAt(text.length - 1) !== '\n'){
+          text += '\n';
+        }
+        // Lowercase and uppercase registers refer to the same register.
+        // Uppercase just means append.
+        var register = this.isValidRegister(registerName) ?
+            this.getRegister(registerName) : null;
+        // if no register/an invalid register was specified, things go to the
+        // default registers
+        if (!register) {
+          switch (operator) {
+            case 'yank':
+              // The 0 register contains the text from the most recent yank.
+              this.registers['0'] = new Register(text, linewise, blockwise);
+              break;
+            case 'delete':
+            case 'change':
+              if (text.indexOf('\n') == -1) {
+                // Delete less than 1 line. Update the small delete register.
+                this.registers['-'] = new Register(text, linewise);
+              } else {
+                // Shift down the contents of the numbered registers and put the
+                // deleted text into register 1.
+                this.shiftNumericRegisters_();
+                this.registers['1'] = new Register(text, linewise);
+              }
+              break;
+          }
+          // Make sure the unnamed register is set to what just happened
+          this.unnamedRegister.setText(text, linewise, blockwise);
+          return;
+        }
+
+        // If we've gotten to this point, we've actually specified a register
+        var append = isUpperCase(registerName);
+        if (append) {
+          register.pushText(text, linewise);
+        } else {
+          register.setText(text, linewise, blockwise);
+        }
+        // The unnamed register always has the same value as the last used
+        // register.
+        this.unnamedRegister.setText(register.toString(), linewise);
+      },
+      // Gets the register named @name.  If one of @name doesn't already exist,
+      // create it.  If @name is invalid, return the unnamedRegister.
+      getRegister: function(name) {
+        if (!this.isValidRegister(name)) {
+          return this.unnamedRegister;
+        }
+        name = name.toLowerCase();
+        if (!this.registers[name]) {
+          this.registers[name] = new Register();
+        }
+        return this.registers[name];
+      },
+      isValidRegister: function(name) {
+        return name && inArray(name, validRegisters);
+      },
+      shiftNumericRegisters_: function() {
+        for (var i = 9; i >= 2; i--) {
+          this.registers[i] = this.getRegister('' + (i - 1));
+        }
+      }
+    };
+    function HistoryController() {
+        this.historyBuffer = [];
+        this.iterator = 0;
+        this.initialPrefix = null;
+    }
+    HistoryController.prototype = {
+      // the input argument here acts a user entered prefix for a small time
+      // until we start autocompletion in which case it is the autocompleted.
+      nextMatch: function (input, up) {
+        var historyBuffer = this.historyBuffer;
+        var dir = up ? -1 : 1;
+        if (this.initialPrefix === null) this.initialPrefix = input;
+        for (var i = this.iterator + dir; up ? i >= 0 : i < historyBuffer.length; i+= dir) {
+          var element = historyBuffer[i];
+          for (var j = 0; j <= element.length; j++) {
+            if (this.initialPrefix == element.substring(0, j)) {
+              this.iterator = i;
+              return element;
+            }
+          }
+        }
+        // should return the user input in case we reach the end of buffer.
+        if (i >= historyBuffer.length) {
+          this.iterator = historyBuffer.length;
+          return this.initialPrefix;
+        }
+        // return the last autocompleted query or exCommand as it is.
+        if (i < 0 ) return input;
+      },
+      pushInput: function(input) {
+        var index = this.historyBuffer.indexOf(input);
+        if (index > -1) this.historyBuffer.splice(index, 1);
+        if (input.length) this.historyBuffer.push(input);
+      },
+      reset: function() {
+        this.initialPrefix = null;
+        this.iterator = this.historyBuffer.length;
+      }
+    };
+    var commandDispatcher = {
+      matchCommand: function(keys, keyMap, inputState, context) {
+        var matches = commandMatches(keys, keyMap, context, inputState);
+        if (!matches.full && !matches.partial) {
+          return {type: 'none'};
+        } else if (!matches.full && matches.partial) {
+          return {type: 'partial'};
+        }
+
+        var bestMatch;
+        for (var i = 0; i < matches.full.length; i++) {
+          var match = matches.full[i];
+          if (!bestMatch) {
+            bestMatch = match;
+          }
+        }
+        if (bestMatch.keys.slice(-11) == '') {
+          inputState.selectedCharacter = lastChar(keys);
+        }
+        return {type: 'full', command: bestMatch};
+      },
+      processCommand: function(cm, vim, command) {
+        vim.inputState.repeatOverride = command.repeatOverride;
+        switch (command.type) {
+          case 'motion':
+            this.processMotion(cm, vim, command);
+            break;
+          case 'operator':
+            this.processOperator(cm, vim, command);
+            break;
+          case 'operatorMotion':
+            this.processOperatorMotion(cm, vim, command);
+            break;
+          case 'action':
+            this.processAction(cm, vim, command);
+            break;
+          case 'search':
+            this.processSearch(cm, vim, command);
+            break;
+          case 'ex':
+          case 'keyToEx':
+            this.processEx(cm, vim, command);
+            break;
+          default:
+            break;
+        }
+      },
+      processMotion: function(cm, vim, command) {
+        vim.inputState.motion = command.motion;
+        vim.inputState.motionArgs = copyArgs(command.motionArgs);
+        this.evalInput(cm, vim);
+      },
+      processOperator: function(cm, vim, command) {
+        var inputState = vim.inputState;
+        if (inputState.operator) {
+          if (inputState.operator == command.operator) {
+            // Typing an operator twice like 'dd' makes the operator operate
+            // linewise
+            inputState.motion = 'expandToLine';
+            inputState.motionArgs = { linewise: true };
+            this.evalInput(cm, vim);
+            return;
+          } else {
+            // 2 different operators in a row doesn't make sense.
+            clearInputState(cm);
+          }
+        }
+        inputState.operator = command.operator;
+        inputState.operatorArgs = copyArgs(command.operatorArgs);
+        if (vim.visualMode) {
+          // Operating on a selection in visual mode. We don't need a motion.
+          this.evalInput(cm, vim);
+        }
+      },
+      processOperatorMotion: function(cm, vim, command) {
+        var visualMode = vim.visualMode;
+        var operatorMotionArgs = copyArgs(command.operatorMotionArgs);
+        if (operatorMotionArgs) {
+          // Operator motions may have special behavior in visual mode.
+          if (visualMode && operatorMotionArgs.visualLine) {
+            vim.visualLine = true;
+          }
+        }
+        this.processOperator(cm, vim, command);
+        if (!visualMode) {
+          this.processMotion(cm, vim, command);
+        }
+      },
+      processAction: function(cm, vim, command) {
+        var inputState = vim.inputState;
+        var repeat = inputState.getRepeat();
+        var repeatIsExplicit = !!repeat;
+        var actionArgs = copyArgs(command.actionArgs) || {};
+        if (inputState.selectedCharacter) {
+          actionArgs.selectedCharacter = inputState.selectedCharacter;
+        }
+        // Actions may or may not have motions and operators. Do these first.
+        if (command.operator) {
+          this.processOperator(cm, vim, command);
+        }
+        if (command.motion) {
+          this.processMotion(cm, vim, command);
+        }
+        if (command.motion || command.operator) {
+          this.evalInput(cm, vim);
+        }
+        actionArgs.repeat = repeat || 1;
+        actionArgs.repeatIsExplicit = repeatIsExplicit;
+        actionArgs.registerName = inputState.registerName;
+        clearInputState(cm);
+        vim.lastMotion = null;
+        if (command.isEdit) {
+          this.recordLastEdit(vim, inputState, command);
+        }
+        actions[command.action](cm, actionArgs, vim);
+      },
+      processSearch: function(cm, vim, command) {
+        if (!cm.getSearchCursor) {
+          // Search depends on SearchCursor.
+          return;
+        }
+        var forward = command.searchArgs.forward;
+        var wholeWordOnly = command.searchArgs.wholeWordOnly;
+        getSearchState(cm).setReversed(!forward);
+        var promptPrefix = (forward) ? '/' : '?';
+        var originalQuery = getSearchState(cm).getQuery();
+        var originalScrollPos = cm.getScrollInfo();
+        function handleQuery(query, ignoreCase, smartCase) {
+          vimGlobalState.searchHistoryController.pushInput(query);
+          vimGlobalState.searchHistoryController.reset();
+          try {
+            updateSearchQuery(cm, query, ignoreCase, smartCase);
+          } catch (e) {
+            showConfirm(cm, 'Invalid regex: ' + query);
+            clearInputState(cm);
+            return;
+          }
+          commandDispatcher.processMotion(cm, vim, {
+            type: 'motion',
+            motion: 'findNext',
+            motionArgs: { forward: true, toJumplist: command.searchArgs.toJumplist }
+          });
+        }
+        function onPromptClose(query) {
+          cm.scrollTo(originalScrollPos.left, originalScrollPos.top);
+          handleQuery(query, true /** ignoreCase */, true /** smartCase */);
+          var macroModeState = vimGlobalState.macroModeState;
+          if (macroModeState.isRecording) {
+            logSearchQuery(macroModeState, query);
+          }
+        }
+        function onPromptKeyUp(e, query, close) {
+          var keyName = CodeMirror.keyName(e), up, offset;
+          if (keyName == 'Up' || keyName == 'Down') {
+            up = keyName == 'Up' ? true : false;
+            offset = e.target ? e.target.selectionEnd : 0;
+            query = vimGlobalState.searchHistoryController.nextMatch(query, up) || '';
+            close(query);
+            if (offset && e.target) e.target.selectionEnd = e.target.selectionStart = Math.min(offset, e.target.value.length);
+          } else {
+            if ( keyName != 'Left' && keyName != 'Right' && keyName != 'Ctrl' && keyName != 'Alt' && keyName != 'Shift')
+              vimGlobalState.searchHistoryController.reset();
+          }
+          var parsedQuery;
+          try {
+            parsedQuery = updateSearchQuery(cm, query,
+                true /** ignoreCase */, true /** smartCase */);
+          } catch (e) {
+            // Swallow bad regexes for incremental search.
+          }
+          if (parsedQuery) {
+            cm.scrollIntoView(findNext(cm, !forward, parsedQuery), 30);
+          } else {
+            clearSearchHighlight(cm);
+            cm.scrollTo(originalScrollPos.left, originalScrollPos.top);
+          }
+        }
+        function onPromptKeyDown(e, query, close) {
+          var keyName = CodeMirror.keyName(e);
+          if (keyName == 'Esc' || keyName == 'Ctrl-C' || keyName == 'Ctrl-[' ||
+              (keyName == 'Backspace' && query == '')) {
+            vimGlobalState.searchHistoryController.pushInput(query);
+            vimGlobalState.searchHistoryController.reset();
+            updateSearchQuery(cm, originalQuery);
+            clearSearchHighlight(cm);
+            cm.scrollTo(originalScrollPos.left, originalScrollPos.top);
+            CodeMirror.e_stop(e);
+            clearInputState(cm);
+            close();
+            cm.focus();
+          } else if (keyName == 'Up' || keyName == 'Down') {
+            CodeMirror.e_stop(e);
+          } else if (keyName == 'Ctrl-U') {
+            // Ctrl-U clears input.
+            CodeMirror.e_stop(e);
+            close('');
+          }
+        }
+        switch (command.searchArgs.querySrc) {
+          case 'prompt':
+            var macroModeState = vimGlobalState.macroModeState;
+            if (macroModeState.isPlaying) {
+              var query = macroModeState.replaySearchQueries.shift();
+              handleQuery(query, true /** ignoreCase */, false /** smartCase */);
+            } else {
+              showPrompt(cm, {
+                  onClose: onPromptClose,
+                  prefix: promptPrefix,
+                  desc: searchPromptDesc,
+                  onKeyUp: onPromptKeyUp,
+                  onKeyDown: onPromptKeyDown
+              });
+            }
+            break;
+          case 'wordUnderCursor':
+            var word = expandWordUnderCursor(cm, false /** inclusive */,
+                true /** forward */, false /** bigWord */,
+                true /** noSymbol */);
+            var isKeyword = true;
+            if (!word) {
+              word = expandWordUnderCursor(cm, false /** inclusive */,
+                  true /** forward */, false /** bigWord */,
+                  false /** noSymbol */);
+              isKeyword = false;
+            }
+            if (!word) {
+              return;
+            }
+            var query = cm.getLine(word.start.line).substring(word.start.ch,
+                word.end.ch);
+            if (isKeyword && wholeWordOnly) {
+                query = '\\b' + query + '\\b';
+            } else {
+              query = escapeRegex(query);
+            }
+
+            // cachedCursor is used to save the old position of the cursor
+            // when * or # causes vim to seek for the nearest word and shift
+            // the cursor before entering the motion.
+            vimGlobalState.jumpList.cachedCursor = cm.getCursor();
+            cm.setCursor(word.start);
+
+            handleQuery(query, true /** ignoreCase */, false /** smartCase */);
+            break;
+        }
+      },
+      processEx: function(cm, vim, command) {
+        function onPromptClose(input) {
+          // Give the prompt some time to close so that if processCommand shows
+          // an error, the elements don't overlap.
+          vimGlobalState.exCommandHistoryController.pushInput(input);
+          vimGlobalState.exCommandHistoryController.reset();
+          exCommandDispatcher.processCommand(cm, input);
+        }
+        function onPromptKeyDown(e, input, close) {
+          var keyName = CodeMirror.keyName(e), up, offset;
+          if (keyName == 'Esc' || keyName == 'Ctrl-C' || keyName == 'Ctrl-[' ||
+              (keyName == 'Backspace' && input == '')) {
+            vimGlobalState.exCommandHistoryController.pushInput(input);
+            vimGlobalState.exCommandHistoryController.reset();
+            CodeMirror.e_stop(e);
+            clearInputState(cm);
+            close();
+            cm.focus();
+          }
+          if (keyName == 'Up' || keyName == 'Down') {
+            CodeMirror.e_stop(e);
+            up = keyName == 'Up' ? true : false;
+            offset = e.target ? e.target.selectionEnd : 0;
+            input = vimGlobalState.exCommandHistoryController.nextMatch(input, up) || '';
+            close(input);
+            if (offset && e.target) e.target.selectionEnd = e.target.selectionStart = Math.min(offset, e.target.value.length);
+          } else if (keyName == 'Ctrl-U') {
+            // Ctrl-U clears input.
+            CodeMirror.e_stop(e);
+            close('');
+          } else {
+            if ( keyName != 'Left' && keyName != 'Right' && keyName != 'Ctrl' && keyName != 'Alt' && keyName != 'Shift')
+              vimGlobalState.exCommandHistoryController.reset();
+          }
+        }
+        if (command.type == 'keyToEx') {
+          // Handle user defined Ex to Ex mappings
+          exCommandDispatcher.processCommand(cm, command.exArgs.input);
+        } else {
+          if (vim.visualMode) {
+            showPrompt(cm, { onClose: onPromptClose, prefix: ':', value: '\'<,\'>',
+                onKeyDown: onPromptKeyDown});
+          } else {
+            showPrompt(cm, { onClose: onPromptClose, prefix: ':',
+                onKeyDown: onPromptKeyDown});
+          }
+        }
+      },
+      evalInput: function(cm, vim) {
+        // If the motion command is set, execute both the operator and motion.
+        // Otherwise return.
+        var inputState = vim.inputState;
+        var motion = inputState.motion;
+        var motionArgs = inputState.motionArgs || {};
+        var operator = inputState.operator;
+        var operatorArgs = inputState.operatorArgs || {};
+        var registerName = inputState.registerName;
+        var sel = vim.sel;
+        // TODO: Make sure cm and vim selections are identical outside visual mode.
+        var origHead = copyCursor(vim.visualMode ? clipCursorToContent(cm, sel.head): cm.getCursor('head'));
+        var origAnchor = copyCursor(vim.visualMode ? clipCursorToContent(cm, sel.anchor) : cm.getCursor('anchor'));
+        var oldHead = copyCursor(origHead);
+        var oldAnchor = copyCursor(origAnchor);
+        var newHead, newAnchor;
+        var repeat;
+        if (operator) {
+          this.recordLastEdit(vim, inputState);
+        }
+        if (inputState.repeatOverride !== undefined) {
+          // If repeatOverride is specified, that takes precedence over the
+          // input state's repeat. Used by Ex mode and can be user defined.
+          repeat = inputState.repeatOverride;
+        } else {
+          repeat = inputState.getRepeat();
+        }
+        if (repeat > 0 && motionArgs.explicitRepeat) {
+          motionArgs.repeatIsExplicit = true;
+        } else if (motionArgs.noRepeat ||
+            (!motionArgs.explicitRepeat && repeat === 0)) {
+          repeat = 1;
+          motionArgs.repeatIsExplicit = false;
+        }
+        if (inputState.selectedCharacter) {
+          // If there is a character input, stick it in all of the arg arrays.
+          motionArgs.selectedCharacter = operatorArgs.selectedCharacter =
+              inputState.selectedCharacter;
+        }
+        motionArgs.repeat = repeat;
+        clearInputState(cm);
+        if (motion) {
+          var motionResult = motions[motion](cm, origHead, motionArgs, vim);
+          vim.lastMotion = motions[motion];
+          if (!motionResult) {
+            return;
+          }
+          if (motionArgs.toJumplist) {
+            var jumpList = vimGlobalState.jumpList;
+            // if the current motion is # or *, use cachedCursor
+            var cachedCursor = jumpList.cachedCursor;
+            if (cachedCursor) {
+              recordJumpPosition(cm, cachedCursor, motionResult);
+              delete jumpList.cachedCursor;
+            } else {
+              recordJumpPosition(cm, origHead, motionResult);
+            }
+          }
+          if (motionResult instanceof Array) {
+            newAnchor = motionResult[0];
+            newHead = motionResult[1];
+          } else {
+            newHead = motionResult;
+          }
+          // TODO: Handle null returns from motion commands better.
+          if (!newHead) {
+            newHead = copyCursor(origHead);
+          }
+          if (vim.visualMode) {
+            if (!(vim.visualBlock && newHead.ch === Infinity)) {
+              newHead = clipCursorToContent(cm, newHead, vim.visualBlock);
+            }
+            if (newAnchor) {
+              newAnchor = clipCursorToContent(cm, newAnchor, true);
+            }
+            newAnchor = newAnchor || oldAnchor;
+            sel.anchor = newAnchor;
+            sel.head = newHead;
+            updateCmSelection(cm);
+            updateMark(cm, vim, '<',
+                cursorIsBefore(newAnchor, newHead) ? newAnchor
+                    : newHead);
+            updateMark(cm, vim, '>',
+                cursorIsBefore(newAnchor, newHead) ? newHead
+                    : newAnchor);
+          } else if (!operator) {
+            newHead = clipCursorToContent(cm, newHead);
+            cm.setCursor(newHead.line, newHead.ch);
+          }
+        }
+        if (operator) {
+          if (operatorArgs.lastSel) {
+            // Replaying a visual mode operation
+            newAnchor = oldAnchor;
+            var lastSel = operatorArgs.lastSel;
+            var lineOffset = Math.abs(lastSel.head.line - lastSel.anchor.line);
+            var chOffset = Math.abs(lastSel.head.ch - lastSel.anchor.ch);
+            if (lastSel.visualLine) {
+              // Linewise Visual mode: The same number of lines.
+              newHead = Pos(oldAnchor.line + lineOffset, oldAnchor.ch);
+            } else if (lastSel.visualBlock) {
+              // Blockwise Visual mode: The same number of lines and columns.
+              newHead = Pos(oldAnchor.line + lineOffset, oldAnchor.ch + chOffset);
+            } else if (lastSel.head.line == lastSel.anchor.line) {
+              // Normal Visual mode within one line: The same number of characters.
+              newHead = Pos(oldAnchor.line, oldAnchor.ch + chOffset);
+            } else {
+              // Normal Visual mode with several lines: The same number of lines, in the
+              // last line the same number of characters as in the last line the last time.
+              newHead = Pos(oldAnchor.line + lineOffset, oldAnchor.ch);
+            }
+            vim.visualMode = true;
+            vim.visualLine = lastSel.visualLine;
+            vim.visualBlock = lastSel.visualBlock;
+            sel = vim.sel = {
+              anchor: newAnchor,
+              head: newHead
+            };
+            updateCmSelection(cm);
+          } else if (vim.visualMode) {
+            operatorArgs.lastSel = {
+              anchor: copyCursor(sel.anchor),
+              head: copyCursor(sel.head),
+              visualBlock: vim.visualBlock,
+              visualLine: vim.visualLine
+            };
+          }
+          var curStart, curEnd, linewise, mode;
+          var cmSel;
+          if (vim.visualMode) {
+            // Init visual op
+            curStart = cursorMin(sel.head, sel.anchor);
+            curEnd = cursorMax(sel.head, sel.anchor);
+            linewise = vim.visualLine || operatorArgs.linewise;
+            mode = vim.visualBlock ? 'block' :
+                   linewise ? 'line' :
+                   'char';
+            cmSel = makeCmSelection(cm, {
+              anchor: curStart,
+              head: curEnd
+            }, mode);
+            if (linewise) {
+              var ranges = cmSel.ranges;
+              if (mode == 'block') {
+                // Linewise operators in visual block mode extend to end of line
+                for (var i = 0; i < ranges.length; i++) {
+                  ranges[i].head.ch = lineLength(cm, ranges[i].head.line);
+                }
+              } else if (mode == 'line') {
+                ranges[0].head = Pos(ranges[0].head.line + 1, 0);
+              }
+            }
+          } else {
+            // Init motion op
+            curStart = copyCursor(newAnchor || oldAnchor);
+            curEnd = copyCursor(newHead || oldHead);
+            if (cursorIsBefore(curEnd, curStart)) {
+              var tmp = curStart;
+              curStart = curEnd;
+              curEnd = tmp;
+            }
+            linewise = motionArgs.linewise || operatorArgs.linewise;
+            if (linewise) {
+              // Expand selection to entire line.
+              expandSelectionToLine(cm, curStart, curEnd);
+            } else if (motionArgs.forward) {
+              // Clip to trailing newlines only if the motion goes forward.
+              clipToLine(cm, curStart, curEnd);
+            }
+            mode = 'char';
+            var exclusive = !motionArgs.inclusive || linewise;
+            cmSel = makeCmSelection(cm, {
+              anchor: curStart,
+              head: curEnd
+            }, mode, exclusive);
+          }
+          cm.setSelections(cmSel.ranges, cmSel.primary);
+          vim.lastMotion = null;
+          operatorArgs.repeat = repeat; // For indent in visual mode.
+          operatorArgs.registerName = registerName;
+          // Keep track of linewise as it affects how paste and change behave.
+          operatorArgs.linewise = linewise;
+          var operatorMoveTo = operators[operator](
+            cm, operatorArgs, cmSel.ranges, oldAnchor, newHead);
+          if (vim.visualMode) {
+            exitVisualMode(cm, operatorMoveTo != null);
+          }
+          if (operatorMoveTo) {
+            cm.setCursor(operatorMoveTo);
+          }
+        }
+      },
+      recordLastEdit: function(vim, inputState, actionCommand) {
+        var macroModeState = vimGlobalState.macroModeState;
+        if (macroModeState.isPlaying) { return; }
+        vim.lastEditInputState = inputState;
+        vim.lastEditActionCommand = actionCommand;
+        macroModeState.lastInsertModeChanges.changes = [];
+        macroModeState.lastInsertModeChanges.expectCursorActivityForChange = false;
+      }
+    };
+
+    /**
+     * typedef {Object{line:number,ch:number}} Cursor An object containing the
+     *     position of the cursor.
+     */
+    // All of the functions below return Cursor objects.
+    var motions = {
+      moveToTopLine: function(cm, _head, motionArgs) {
+        var line = getUserVisibleLines(cm).top + motionArgs.repeat -1;
+        return Pos(line, findFirstNonWhiteSpaceCharacter(cm.getLine(line)));
+      },
+      moveToMiddleLine: function(cm) {
+        var range = getUserVisibleLines(cm);
+        var line = Math.floor((range.top + range.bottom) * 0.5);
+        return Pos(line, findFirstNonWhiteSpaceCharacter(cm.getLine(line)));
+      },
+      moveToBottomLine: function(cm, _head, motionArgs) {
+        var line = getUserVisibleLines(cm).bottom - motionArgs.repeat +1;
+        return Pos(line, findFirstNonWhiteSpaceCharacter(cm.getLine(line)));
+      },
+      expandToLine: function(_cm, head, motionArgs) {
+        // Expands forward to end of line, and then to next line if repeat is
+        // >1. Does not handle backward motion!
+        var cur = head;
+        return Pos(cur.line + motionArgs.repeat - 1, Infinity);
+      },
+      findNext: function(cm, _head, motionArgs) {
+        var state = getSearchState(cm);
+        var query = state.getQuery();
+        if (!query) {
+          return;
+        }
+        var prev = !motionArgs.forward;
+        // If search is initiated with ? instead of /, negate direction.
+        prev = (state.isReversed()) ? !prev : prev;
+        highlightSearchMatches(cm, query);
+        return findNext(cm, prev/** prev */, query, motionArgs.repeat);
+      },
+      goToMark: function(cm, _head, motionArgs, vim) {
+        var pos = getMarkPos(cm, vim, motionArgs.selectedCharacter);
+        if (pos) {
+          return motionArgs.linewise ? { line: pos.line, ch: findFirstNonWhiteSpaceCharacter(cm.getLine(pos.line)) } : pos;
+        }
+        return null;
+      },
+      moveToOtherHighlightedEnd: function(cm, _head, motionArgs, vim) {
+        if (vim.visualBlock && motionArgs.sameLine) {
+          var sel = vim.sel;
+          return [
+            clipCursorToContent(cm, Pos(sel.anchor.line, sel.head.ch)),
+            clipCursorToContent(cm, Pos(sel.head.line, sel.anchor.ch))
+          ];
+        } else {
+          return ([vim.sel.head, vim.sel.anchor]);
+        }
+      },
+      jumpToMark: function(cm, head, motionArgs, vim) {
+        var best = head;
+        for (var i = 0; i < motionArgs.repeat; i++) {
+          var cursor = best;
+          for (var key in vim.marks) {
+            if (!isLowerCase(key)) {
+              continue;
+            }
+            var mark = vim.marks[key].find();
+            var isWrongDirection = (motionArgs.forward) ?
+              cursorIsBefore(mark, cursor) : cursorIsBefore(cursor, mark);
+
+            if (isWrongDirection) {
+              continue;
+            }
+            if (motionArgs.linewise && (mark.line == cursor.line)) {
+              continue;
+            }
+
+            var equal = cursorEqual(cursor, best);
+            var between = (motionArgs.forward) ?
+              cursorIsBetween(cursor, mark, best) :
+              cursorIsBetween(best, mark, cursor);
+
+            if (equal || between) {
+              best = mark;
+            }
+          }
+        }
+
+        if (motionArgs.linewise) {
+          // Vim places the cursor on the first non-whitespace character of
+          // the line if there is one, else it places the cursor at the end
+          // of the line, regardless of whether a mark was found.
+          best = Pos(best.line, findFirstNonWhiteSpaceCharacter(cm.getLine(best.line)));
+        }
+        return best;
+      },
+      moveByCharacters: function(_cm, head, motionArgs) {
+        var cur = head;
+        var repeat = motionArgs.repeat;
+        var ch = motionArgs.forward ? cur.ch + repeat : cur.ch - repeat;
+        return Pos(cur.line, ch);
+      },
+      moveByLines: function(cm, head, motionArgs, vim) {
+        var cur = head;
+        var endCh = cur.ch;
+        // Depending what our last motion was, we may want to do different
+        // things. If our last motion was moving vertically, we want to
+        // preserve the HPos from our last horizontal move.  If our last motion
+        // was going to the end of a line, moving vertically we should go to
+        // the end of the line, etc.
+        switch (vim.lastMotion) {
+          case this.moveByLines:
+          case this.moveByDisplayLines:
+          case this.moveByScroll:
+          case this.moveToColumn:
+          case this.moveToEol:
+            endCh = vim.lastHPos;
+            break;
+          default:
+            vim.lastHPos = endCh;
+        }
+        var repeat = motionArgs.repeat+(motionArgs.repeatOffset||0);
+        var line = motionArgs.forward ? cur.line + repeat : cur.line - repeat;
+        var first = cm.firstLine();
+        var last = cm.lastLine();
+        // Vim go to line begin or line end when cursor at first/last line and
+        // move to previous/next line is triggered.
+        if (line < first && cur.line == first){
+          return this.moveToStartOfLine(cm, head, motionArgs, vim);
+        }else if (line > last && cur.line == last){
+            return this.moveToEol(cm, head, motionArgs, vim);
+        }
+        if (motionArgs.toFirstChar){
+          endCh=findFirstNonWhiteSpaceCharacter(cm.getLine(line));
+          vim.lastHPos = endCh;
+        }
+        vim.lastHSPos = cm.charCoords(Pos(line, endCh),'div').left;
+        return Pos(line, endCh);
+      },
+      moveByDisplayLines: function(cm, head, motionArgs, vim) {
+        var cur = head;
+        switch (vim.lastMotion) {
+          case this.moveByDisplayLines:
+          case this.moveByScroll:
+          case this.moveByLines:
+          case this.moveToColumn:
+          case this.moveToEol:
+            break;
+          default:
+            vim.lastHSPos = cm.charCoords(cur,'div').left;
+        }
+        var repeat = motionArgs.repeat;
+        var res=cm.findPosV(cur,(motionArgs.forward ? repeat : -repeat),'line',vim.lastHSPos);
+        if (res.hitSide) {
+          if (motionArgs.forward) {
+            var lastCharCoords = cm.charCoords(res, 'div');
+            var goalCoords = { top: lastCharCoords.top + 8, left: vim.lastHSPos };
+            var res = cm.coordsChar(goalCoords, 'div');
+          } else {
+            var resCoords = cm.charCoords(Pos(cm.firstLine(), 0), 'div');
+            resCoords.left = vim.lastHSPos;
+            res = cm.coordsChar(resCoords, 'div');
+          }
+        }
+        vim.lastHPos = res.ch;
+        return res;
+      },
+      moveByPage: function(cm, head, motionArgs) {
+        // CodeMirror only exposes functions that move the cursor page down, so
+        // doing this bad hack to move the cursor and move it back. evalInput
+        // will move the cursor to where it should be in the end.
+        var curStart = head;
+        var repeat = motionArgs.repeat;
+        return cm.findPosV(curStart, (motionArgs.forward ? repeat : -repeat), 'page');
+      },
+      moveByParagraph: function(cm, head, motionArgs) {
+        var dir = motionArgs.forward ? 1 : -1;
+        return findParagraph(cm, head, motionArgs.repeat, dir);
+      },
+      moveByScroll: function(cm, head, motionArgs, vim) {
+        var scrollbox = cm.getScrollInfo();
+        var curEnd = null;
+        var repeat = motionArgs.repeat;
+        if (!repeat) {
+          repeat = scrollbox.clientHeight / (2 * cm.defaultTextHeight());
+        }
+        var orig = cm.charCoords(head, 'local');
+        motionArgs.repeat = repeat;
+        var curEnd = motions.moveByDisplayLines(cm, head, motionArgs, vim);
+        if (!curEnd) {
+          return null;
+        }
+        var dest = cm.charCoords(curEnd, 'local');
+        cm.scrollTo(null, scrollbox.top + dest.top - orig.top);
+        return curEnd;
+      },
+      moveByWords: function(cm, head, motionArgs) {
+        return moveToWord(cm, head, motionArgs.repeat, !!motionArgs.forward,
+            !!motionArgs.wordEnd, !!motionArgs.bigWord);
+      },
+      moveTillCharacter: function(cm, _head, motionArgs) {
+        var repeat = motionArgs.repeat;
+        var curEnd = moveToCharacter(cm, repeat, motionArgs.forward,
+            motionArgs.selectedCharacter);
+        var increment = motionArgs.forward ? -1 : 1;
+        recordLastCharacterSearch(increment, motionArgs);
+        if (!curEnd) return null;
+        curEnd.ch += increment;
+        return curEnd;
+      },
+      moveToCharacter: function(cm, head, motionArgs) {
+        var repeat = motionArgs.repeat;
+        recordLastCharacterSearch(0, motionArgs);
+        return moveToCharacter(cm, repeat, motionArgs.forward,
+            motionArgs.selectedCharacter) || head;
+      },
+      moveToSymbol: function(cm, head, motionArgs) {
+        var repeat = motionArgs.repeat;
+        return findSymbol(cm, repeat, motionArgs.forward,
+            motionArgs.selectedCharacter) || head;
+      },
+      moveToColumn: function(cm, head, motionArgs, vim) {
+        var repeat = motionArgs.repeat;
+        // repeat is equivalent to which column we want to move to!
+        vim.lastHPos = repeat - 1;
+        vim.lastHSPos = cm.charCoords(head,'div').left;
+        return moveToColumn(cm, repeat);
+      },
+      moveToEol: function(cm, head, motionArgs, vim) {
+        var cur = head;
+        vim.lastHPos = Infinity;
+        var retval= Pos(cur.line + motionArgs.repeat - 1, Infinity);
+        var end=cm.clipPos(retval);
+        end.ch--;
+        vim.lastHSPos = cm.charCoords(end,'div').left;
+        return retval;
+      },
+      moveToFirstNonWhiteSpaceCharacter: function(cm, head) {
+        // Go to the start of the line where the text begins, or the end for
+        // whitespace-only lines
+        var cursor = head;
+        return Pos(cursor.line,
+                   findFirstNonWhiteSpaceCharacter(cm.getLine(cursor.line)));
+      },
+      moveToMatchedSymbol: function(cm, head) {
+        var cursor = head;
+        var line = cursor.line;
+        var ch = cursor.ch;
+        var lineText = cm.getLine(line);
+        var symbol;
+        do {
+          symbol = lineText.charAt(ch++);
+          if (symbol && isMatchableSymbol(symbol)) {
+            var style = cm.getTokenTypeAt(Pos(line, ch));
+            if (style !== "string" && style !== "comment") {
+              break;
+            }
+          }
+        } while (symbol);
+        if (symbol) {
+          var matched = cm.findMatchingBracket(Pos(line, ch));
+          return matched.to;
+        } else {
+          return cursor;
+        }
+      },
+      moveToStartOfLine: function(_cm, head) {
+        return Pos(head.line, 0);
+      },
+      moveToLineOrEdgeOfDocument: function(cm, _head, motionArgs) {
+        var lineNum = motionArgs.forward ? cm.lastLine() : cm.firstLine();
+        if (motionArgs.repeatIsExplicit) {
+          lineNum = motionArgs.repeat - cm.getOption('firstLineNumber');
+        }
+        return Pos(lineNum,
+                   findFirstNonWhiteSpaceCharacter(cm.getLine(lineNum)));
+      },
+      textObjectManipulation: function(cm, head, motionArgs, vim) {
+        // TODO: lots of possible exceptions that can be thrown here. Try da(
+        //     outside of a () block.
+
+        // TODO: adding <> >< to this map doesn't work, presumably because
+        // they're operators
+        var mirroredPairs = {'(': ')', ')': '(',
+                             '{': '}', '}': '{',
+                             '[': ']', ']': '['};
+        var selfPaired = {'\'': true, '"': true};
+
+        var character = motionArgs.selectedCharacter;
+        // 'b' refers to  '()' block.
+        // 'B' refers to  '{}' block.
+        if (character == 'b') {
+          character = '(';
+        } else if (character == 'B') {
+          character = '{';
+        }
+
+        // Inclusive is the difference between a and i
+        // TODO: Instead of using the additional text object map to perform text
+        //     object operations, merge the map into the defaultKeyMap and use
+        //     motionArgs to define behavior. Define separate entries for 'aw',
+        //     'iw', 'a[', 'i[', etc.
+        var inclusive = !motionArgs.textObjectInner;
+
+        var tmp;
+        if (mirroredPairs[character]) {
+          tmp = selectCompanionObject(cm, head, character, inclusive);
+        } else if (selfPaired[character]) {
+          tmp = findBeginningAndEnd(cm, head, character, inclusive);
+        } else if (character === 'W') {
+          tmp = expandWordUnderCursor(cm, inclusive, true /** forward */,
+                                                     true /** bigWord */);
+        } else if (character === 'w') {
+          tmp = expandWordUnderCursor(cm, inclusive, true /** forward */,
+                                                     false /** bigWord */);
+        } else if (character === 'p') {
+          tmp = findParagraph(cm, head, motionArgs.repeat, 0, inclusive);
+          motionArgs.linewise = true;
+          if (vim.visualMode) {
+            if (!vim.visualLine) { vim.visualLine = true; }
+          } else {
+            var operatorArgs = vim.inputState.operatorArgs;
+            if (operatorArgs) { operatorArgs.linewise = true; }
+            tmp.end.line--;
+          }
+        } else {
+          // No text object defined for this, don't move.
+          return null;
+        }
+
+        if (!cm.state.vim.visualMode) {
+          return [tmp.start, tmp.end];
+        } else {
+          return expandSelection(cm, tmp.start, tmp.end);
+        }
+      },
+
+      repeatLastCharacterSearch: function(cm, head, motionArgs) {
+        var lastSearch = vimGlobalState.lastCharacterSearch;
+        var repeat = motionArgs.repeat;
+        var forward = motionArgs.forward === lastSearch.forward;
+        var increment = (lastSearch.increment ? 1 : 0) * (forward ? -1 : 1);
+        cm.moveH(-increment, 'char');
+        motionArgs.inclusive = forward ? true : false;
+        var curEnd = moveToCharacter(cm, repeat, forward, lastSearch.selectedCharacter);
+        if (!curEnd) {
+          cm.moveH(increment, 'char');
+          return head;
+        }
+        curEnd.ch += increment;
+        return curEnd;
+      }
+    };
+
+    function defineMotion(name, fn) {
+      motions[name] = fn;
+    }
+
+    function fillArray(val, times) {
+      var arr = [];
+      for (var i = 0; i < times; i++) {
+        arr.push(val);
+      }
+      return arr;
+    }
+    /**
+     * An operator acts on a text selection. It receives the list of selections
+     * as input. The corresponding CodeMirror selection is guaranteed to
+    * match the input selection.
+     */
+    var operators = {
+      change: function(cm, args, ranges) {
+        var finalHead, text;
+        var vim = cm.state.vim;
+        vimGlobalState.macroModeState.lastInsertModeChanges.inVisualBlock = vim.visualBlock;
+        if (!vim.visualMode) {
+          var anchor = ranges[0].anchor,
+              head = ranges[0].head;
+          text = cm.getRange(anchor, head);
+          var lastState = vim.lastEditInputState || {};
+          if (lastState.motion == "moveByWords" && !isWhiteSpaceString(text)) {
+            // Exclude trailing whitespace if the range is not all whitespace.
+            var match = (/\s+$/).exec(text);
+            if (match && lastState.motionArgs && lastState.motionArgs.forward) {
+              head = offsetCursor(head, 0, - match[0].length);
+              text = text.slice(0, - match[0].length);
+            }
+          }
+          var prevLineEnd = new Pos(anchor.line - 1, Number.MAX_VALUE);
+          var wasLastLine = cm.firstLine() == cm.lastLine();
+          if (head.line > cm.lastLine() && args.linewise && !wasLastLine) {
+            cm.replaceRange('', prevLineEnd, head);
+          } else {
+            cm.replaceRange('', anchor, head);
+          }
+          if (args.linewise) {
+            // Push the next line back down, if there is a next line.
+            if (!wasLastLine) {
+              cm.setCursor(prevLineEnd);
+              CodeMirror.commands.newlineAndIndent(cm);
+            }
+            // make sure cursor ends up at the end of the line.
+            anchor.ch = Number.MAX_VALUE;
+          }
+          finalHead = anchor;
+        } else {
+          text = cm.getSelection();
+          var replacement = fillArray('', ranges.length);
+          cm.replaceSelections(replacement);
+          finalHead = cursorMin(ranges[0].head, ranges[0].anchor);
+        }
+        vimGlobalState.registerController.pushText(
+            args.registerName, 'change', text,
+            args.linewise, ranges.length > 1);
+        actions.enterInsertMode(cm, {head: finalHead}, cm.state.vim);
+      },
+      // delete is a javascript keyword.
+      'delete': function(cm, args, ranges) {
+        var finalHead, text;
+        var vim = cm.state.vim;
+        if (!vim.visualBlock) {
+          var anchor = ranges[0].anchor,
+              head = ranges[0].head;
+          if (args.linewise &&
+              head.line != cm.firstLine() &&
+              anchor.line == cm.lastLine() &&
+              anchor.line == head.line - 1) {
+            // Special case for dd on last line (and first line).
+            if (anchor.line == cm.firstLine()) {
+              anchor.ch = 0;
+            } else {
+              anchor = Pos(anchor.line - 1, lineLength(cm, anchor.line - 1));
+            }
+          }
+          text = cm.getRange(anchor, head);
+          cm.replaceRange('', anchor, head);
+          finalHead = anchor;
+          if (args.linewise) {
+            finalHead = motions.moveToFirstNonWhiteSpaceCharacter(cm, anchor);
+          }
+        } else {
+          text = cm.getSelection();
+          var replacement = fillArray('', ranges.length);
+          cm.replaceSelections(replacement);
+          finalHead = ranges[0].anchor;
+        }
+        vimGlobalState.registerController.pushText(
+            args.registerName, 'delete', text,
+            args.linewise, vim.visualBlock);
+        return clipCursorToContent(cm, finalHead);
+      },
+      indent: function(cm, args, ranges) {
+        var vim = cm.state.vim;
+        var startLine = ranges[0].anchor.line;
+        var endLine = vim.visualBlock ?
+          ranges[ranges.length - 1].anchor.line :
+          ranges[0].head.line;
+        // In visual mode, n> shifts the selection right n times, instead of
+        // shifting n lines right once.
+        var repeat = (vim.visualMode) ? args.repeat : 1;
+        if (args.linewise) {
+          // The only way to delete a newline is to delete until the start of
+          // the next line, so in linewise mode evalInput will include the next
+          // line. We don't want this in indent, so we go back a line.
+          endLine--;
+        }
+        for (var i = startLine; i <= endLine; i++) {
+          for (var j = 0; j < repeat; j++) {
+            cm.indentLine(i, args.indentRight);
+          }
+        }
+        return motions.moveToFirstNonWhiteSpaceCharacter(cm, ranges[0].anchor);
+      },
+      changeCase: function(cm, args, ranges, oldAnchor, newHead) {
+        var selections = cm.getSelections();
+        var swapped = [];
+        var toLower = args.toLower;
+        for (var j = 0; j < selections.length; j++) {
+          var toSwap = selections[j];
+          var text = '';
+          if (toLower === true) {
+            text = toSwap.toLowerCase();
+          } else if (toLower === false) {
+            text = toSwap.toUpperCase();
+          } else {
+            for (var i = 0; i < toSwap.length; i++) {
+              var character = toSwap.charAt(i);
+              text += isUpperCase(character) ? character.toLowerCase() :
+                  character.toUpperCase();
+            }
+          }
+          swapped.push(text);
+        }
+        cm.replaceSelections(swapped);
+        if (args.shouldMoveCursor){
+          return newHead;
+        } else if (!cm.state.vim.visualMode && args.linewise && ranges[0].anchor.line + 1 == ranges[0].head.line) {
+          return motions.moveToFirstNonWhiteSpaceCharacter(cm, oldAnchor);
+        } else if (args.linewise){
+          return oldAnchor;
+        } else {
+          return cursorMin(ranges[0].anchor, ranges[0].head);
+        }
+      },
+      yank: function(cm, args, ranges, oldAnchor) {
+        var vim = cm.state.vim;
+        var text = cm.getSelection();
+        var endPos = vim.visualMode
+          ? cursorMin(vim.sel.anchor, vim.sel.head, ranges[0].head, ranges[0].anchor)
+          : oldAnchor;
+        vimGlobalState.registerController.pushText(
+            args.registerName, 'yank',
+            text, args.linewise, vim.visualBlock);
+        return endPos;
+      }
+    };
+
+    function defineOperator(name, fn) {
+      operators[name] = fn;
+    }
+
+    var actions = {
+      jumpListWalk: function(cm, actionArgs, vim) {
+        if (vim.visualMode) {
+          return;
+        }
+        var repeat = actionArgs.repeat;
+        var forward = actionArgs.forward;
+        var jumpList = vimGlobalState.jumpList;
+
+        var mark = jumpList.move(cm, forward ? repeat : -repeat);
+        var markPos = mark ? mark.find() : undefined;
+        markPos = markPos ? markPos : cm.getCursor();
+        cm.setCursor(markPos);
+      },
+      scroll: function(cm, actionArgs, vim) {
+        if (vim.visualMode) {
+          return;
+        }
+        var repeat = actionArgs.repeat || 1;
+        var lineHeight = cm.defaultTextHeight();
+        var top = cm.getScrollInfo().top;
+        var delta = lineHeight * repeat;
+        var newPos = actionArgs.forward ? top + delta : top - delta;
+        var cursor = copyCursor(cm.getCursor());
+        var cursorCoords = cm.charCoords(cursor, 'local');
+        if (actionArgs.forward) {
+          if (newPos > cursorCoords.top) {
+             cursor.line += (newPos - cursorCoords.top) / lineHeight;
+             cursor.line = Math.ceil(cursor.line);
+             cm.setCursor(cursor);
+             cursorCoords = cm.charCoords(cursor, 'local');
+             cm.scrollTo(null, cursorCoords.top);
+          } else {
+             // Cursor stays within bounds.  Just reposition the scroll window.
+             cm.scrollTo(null, newPos);
+          }
+        } else {
+          var newBottom = newPos + cm.getScrollInfo().clientHeight;
+          if (newBottom < cursorCoords.bottom) {
+             cursor.line -= (cursorCoords.bottom - newBottom) / lineHeight;
+             cursor.line = Math.floor(cursor.line);
+             cm.setCursor(cursor);
+             cursorCoords = cm.charCoords(cursor, 'local');
+             cm.scrollTo(
+                 null, cursorCoords.bottom - cm.getScrollInfo().clientHeight);
+          } else {
+             // Cursor stays within bounds.  Just reposition the scroll window.
+             cm.scrollTo(null, newPos);
+          }
+        }
+      },
+      scrollToCursor: function(cm, actionArgs) {
+        var lineNum = cm.getCursor().line;
+        var charCoords = cm.charCoords(Pos(lineNum, 0), 'local');
+        var height = cm.getScrollInfo().clientHeight;
+        var y = charCoords.top;
+        var lineHeight = charCoords.bottom - y;
+        switch (actionArgs.position) {
+          case 'center': y = y - (height / 2) + lineHeight;
+            break;
+          case 'bottom': y = y - height + lineHeight;
+            break;
+        }
+        cm.scrollTo(null, y);
+      },
+      replayMacro: function(cm, actionArgs, vim) {
+        var registerName = actionArgs.selectedCharacter;
+        var repeat = actionArgs.repeat;
+        var macroModeState = vimGlobalState.macroModeState;
+        if (registerName == '@') {
+          registerName = macroModeState.latestRegister;
+        }
+        while(repeat--){
+          executeMacroRegister(cm, vim, macroModeState, registerName);
+        }
+      },
+      enterMacroRecordMode: function(cm, actionArgs) {
+        var macroModeState = vimGlobalState.macroModeState;
+        var registerName = actionArgs.selectedCharacter;
+        macroModeState.enterMacroRecordMode(cm, registerName);
+      },
+      toggleOverwrite: function(cm) {
+        if (!cm.state.overwrite) {
+          cm.toggleOverwrite(true);
+          cm.setOption('keyMap', 'vim-replace');
+          CodeMirror.signal(cm, "vim-mode-change", {mode: "replace"});
+        } else {
+          cm.toggleOverwrite(false);
+          cm.setOption('keyMap', 'vim-insert');
+          CodeMirror.signal(cm, "vim-mode-change", {mode: "insert"});
+        }
+      },
+      enterInsertMode: function(cm, actionArgs, vim) {
+        if (cm.getOption('readOnly')) { return; }
+        vim.insertMode = true;
+        vim.insertModeRepeat = actionArgs && actionArgs.repeat || 1;
+        var insertAt = (actionArgs) ? actionArgs.insertAt : null;
+        var sel = vim.sel;
+        var head = actionArgs.head || cm.getCursor('head');
+        var height = cm.listSelections().length;
+        if (insertAt == 'eol') {
+          head = Pos(head.line, lineLength(cm, head.line));
+        } else if (insertAt == 'charAfter') {
+          head = offsetCursor(head, 0, 1);
+        } else if (insertAt == 'firstNonBlank') {
+          head = motions.moveToFirstNonWhiteSpaceCharacter(cm, head);
+        } else if (insertAt == 'startOfSelectedArea') {
+          if (!vim.visualBlock) {
+            if (sel.head.line < sel.anchor.line) {
+              head = sel.head;
+            } else {
+              head = Pos(sel.anchor.line, 0);
+            }
+          } else {
+            head = Pos(
+                Math.min(sel.head.line, sel.anchor.line),
+                Math.min(sel.head.ch, sel.anchor.ch));
+            height = Math.abs(sel.head.line - sel.anchor.line) + 1;
+          }
+        } else if (insertAt == 'endOfSelectedArea') {
+          if (!vim.visualBlock) {
+            if (sel.head.line >= sel.anchor.line) {
+              head = offsetCursor(sel.head, 0, 1);
+            } else {
+              head = Pos(sel.anchor.line, 0);
+            }
+          } else {
+            head = Pos(
+                Math.min(sel.head.line, sel.anchor.line),
+                Math.max(sel.head.ch + 1, sel.anchor.ch));
+            height = Math.abs(sel.head.line - sel.anchor.line) + 1;
+          }
+        } else if (insertAt == 'inplace') {
+          if (vim.visualMode){
+            return;
+          }
+        }
+        cm.setOption('disableInput', false);
+        if (actionArgs && actionArgs.replace) {
+          // Handle Replace-mode as a special case of insert mode.
+          cm.toggleOverwrite(true);
+          cm.setOption('keyMap', 'vim-replace');
+          CodeMirror.signal(cm, "vim-mode-change", {mode: "replace"});
+        } else {
+          cm.toggleOverwrite(false);
+          cm.setOption('keyMap', 'vim-insert');
+          CodeMirror.signal(cm, "vim-mode-change", {mode: "insert"});
+        }
+        if (!vimGlobalState.macroModeState.isPlaying) {
+          // Only record if not replaying.
+          cm.on('change', onChange);
+          CodeMirror.on(cm.getInputField(), 'keydown', onKeyEventTargetKeyDown);
+        }
+        if (vim.visualMode) {
+          exitVisualMode(cm);
+        }
+        selectForInsert(cm, head, height);
+      },
+      toggleVisualMode: function(cm, actionArgs, vim) {
+        var repeat = actionArgs.repeat;
+        var anchor = cm.getCursor();
+        var head;
+        // TODO: The repeat should actually select number of characters/lines
+        //     equal to the repeat times the size of the previous visual
+        //     operation.
+        if (!vim.visualMode) {
+          // Entering visual mode
+          vim.visualMode = true;
+          vim.visualLine = !!actionArgs.linewise;
+          vim.visualBlock = !!actionArgs.blockwise;
+          head = clipCursorToContent(
+              cm, Pos(anchor.line, anchor.ch + repeat - 1),
+              true /** includeLineBreak */);
+          vim.sel = {
+            anchor: anchor,
+            head: head
+          };
+          CodeMirror.signal(cm, "vim-mode-change", {mode: "visual", subMode: vim.visualLine ? "linewise" : vim.visualBlock ? "blockwise" : ""});
+          updateCmSelection(cm);
+          updateMark(cm, vim, '<', cursorMin(anchor, head));
+          updateMark(cm, vim, '>', cursorMax(anchor, head));
+        } else if (vim.visualLine ^ actionArgs.linewise ||
+            vim.visualBlock ^ actionArgs.blockwise) {
+          // Toggling between modes
+          vim.visualLine = !!actionArgs.linewise;
+          vim.visualBlock = !!actionArgs.blockwise;
+          CodeMirror.signal(cm, "vim-mode-change", {mode: "visual", subMode: vim.visualLine ? "linewise" : vim.visualBlock ? "blockwise" : ""});
+          updateCmSelection(cm);
+        } else {
+          exitVisualMode(cm);
+        }
+      },
+      reselectLastSelection: function(cm, _actionArgs, vim) {
+        var lastSelection = vim.lastSelection;
+        if (vim.visualMode) {
+          updateLastSelection(cm, vim);
+        }
+        if (lastSelection) {
+          var anchor = lastSelection.anchorMark.find();
+          var head = lastSelection.headMark.find();
+          if (!anchor || !head) {
+            // If the marks have been destroyed due to edits, do nothing.
+            return;
+          }
+          vim.sel = {
+            anchor: anchor,
+            head: head
+          };
+          vim.visualMode = true;
+          vim.visualLine = lastSelection.visualLine;
+          vim.visualBlock = lastSelection.visualBlock;
+          updateCmSelection(cm);
+          updateMark(cm, vim, '<', cursorMin(anchor, head));
+          updateMark(cm, vim, '>', cursorMax(anchor, head));
+          CodeMirror.signal(cm, 'vim-mode-change', {
+            mode: 'visual',
+            subMode: vim.visualLine ? 'linewise' :
+                     vim.visualBlock ? 'blockwise' : ''});
+        }
+      },
+      joinLines: function(cm, actionArgs, vim) {
+        var curStart, curEnd;
+        if (vim.visualMode) {
+          curStart = cm.getCursor('anchor');
+          curEnd = cm.getCursor('head');
+          if (cursorIsBefore(curEnd, curStart)) {
+            var tmp = curEnd;
+            curEnd = curStart;
+            curStart = tmp;
+          }
+          curEnd.ch = lineLength(cm, curEnd.line) - 1;
+        } else {
+          // Repeat is the number of lines to join. Minimum 2 lines.
+          var repeat = Math.max(actionArgs.repeat, 2);
+          curStart = cm.getCursor();
+          curEnd = clipCursorToContent(cm, Pos(curStart.line + repeat - 1,
+                                               Infinity));
+        }
+        var finalCh = 0;
+        for (var i = curStart.line; i < curEnd.line; i++) {
+          finalCh = lineLength(cm, curStart.line);
+          var tmp = Pos(curStart.line + 1,
+                        lineLength(cm, curStart.line + 1));
+          var text = cm.getRange(curStart, tmp);
+          text = text.replace(/\n\s*/g, ' ');
+          cm.replaceRange(text, curStart, tmp);
+        }
+        var curFinalPos = Pos(curStart.line, finalCh);
+        if (vim.visualMode) {
+          exitVisualMode(cm, false);
+        }
+        cm.setCursor(curFinalPos);
+      },
+      newLineAndEnterInsertMode: function(cm, actionArgs, vim) {
+        vim.insertMode = true;
+        var insertAt = copyCursor(cm.getCursor());
+        if (insertAt.line === cm.firstLine() && !actionArgs.after) {
+          // Special case for inserting newline before start of document.
+          cm.replaceRange('\n', Pos(cm.firstLine(), 0));
+          cm.setCursor(cm.firstLine(), 0);
+        } else {
+          insertAt.line = (actionArgs.after) ? insertAt.line :
+              insertAt.line - 1;
+          insertAt.ch = lineLength(cm, insertAt.line);
+          cm.setCursor(insertAt);
+          var newlineFn = CodeMirror.commands.newlineAndIndentContinueComment ||
+              CodeMirror.commands.newlineAndIndent;
+          newlineFn(cm);
+        }
+        this.enterInsertMode(cm, { repeat: actionArgs.repeat }, vim);
+      },
+      paste: function(cm, actionArgs, vim) {
+        var cur = copyCursor(cm.getCursor());
+        var register = vimGlobalState.registerController.getRegister(
+            actionArgs.registerName);
+        var text = register.toString();
+        if (!text) {
+          return;
+        }
+        if (actionArgs.matchIndent) {
+          var tabSize = cm.getOption("tabSize");
+          // length that considers tabs and tabSize
+          var whitespaceLength = function(str) {
+            var tabs = (str.split("\t").length - 1);
+            var spaces = (str.split(" ").length - 1);
+            return tabs * tabSize + spaces * 1;
+          };
+          var currentLine = cm.getLine(cm.getCursor().line);
+          var indent = whitespaceLength(currentLine.match(/^\s*/)[0]);
+          // chomp last newline b/c don't want it to match /^\s*/gm
+          var chompedText = text.replace(/\n$/, '');
+          var wasChomped = text !== chompedText;
+          var firstIndent = whitespaceLength(text.match(/^\s*/)[0]);
+          var text = chompedText.replace(/^\s*/gm, function(wspace) {
+            var newIndent = indent + (whitespaceLength(wspace) - firstIndent);
+            if (newIndent < 0) {
+              return "";
+            }
+            else if (cm.getOption("indentWithTabs")) {
+              var quotient = Math.floor(newIndent / tabSize);
+              return Array(quotient + 1).join('\t');
+            }
+            else {
+              return Array(newIndent + 1).join(' ');
+            }
+          });
+          text += wasChomped ? "\n" : "";
+        }
+        if (actionArgs.repeat > 1) {
+          var text = Array(actionArgs.repeat + 1).join(text);
+        }
+        var linewise = register.linewise;
+        var blockwise = register.blockwise;
+        if (linewise) {
+          if(vim.visualMode) {
+            text = vim.visualLine ? text.slice(0, -1) : '\n' + text.slice(0, text.length - 1) + '\n';
+          } else if (actionArgs.after) {
+            // Move the newline at the end to the start instead, and paste just
+            // before the newline character of the line we are on right now.
+            text = '\n' + text.slice(0, text.length - 1);
+            cur.ch = lineLength(cm, cur.line);
+          } else {
+            cur.ch = 0;
+          }
+        } else {
+          if (blockwise) {
+            text = text.split('\n');
+            for (var i = 0; i < text.length; i++) {
+              text[i] = (text[i] == '') ? ' ' : text[i];
+            }
+          }
+          cur.ch += actionArgs.after ? 1 : 0;
+        }
+        var curPosFinal;
+        var idx;
+        if (vim.visualMode) {
+          //  save the pasted text for reselection if the need arises
+          vim.lastPastedText = text;
+          var lastSelectionCurEnd;
+          var selectedArea = getSelectedAreaRange(cm, vim);
+          var selectionStart = selectedArea[0];
+          var selectionEnd = selectedArea[1];
+          var selectedText = cm.getSelection();
+          var selections = cm.listSelections();
+          var emptyStrings = new Array(selections.length).join('1').split('1');
+          // save the curEnd marker before it get cleared due to cm.replaceRange.
+          if (vim.lastSelection) {
+            lastSelectionCurEnd = vim.lastSelection.headMark.find();
+          }
+          // push the previously selected text to unnamed register
+          vimGlobalState.registerController.unnamedRegister.setText(selectedText);
+          if (blockwise) {
+            // first delete the selected text
+            cm.replaceSelections(emptyStrings);
+            // Set new selections as per the block length of the yanked text
+            selectionEnd = Pos(selectionStart.line + text.length-1, selectionStart.ch);
+            cm.setCursor(selectionStart);
+            selectBlock(cm, selectionEnd);
+            cm.replaceSelections(text);
+            curPosFinal = selectionStart;
+          } else if (vim.visualBlock) {
+            cm.replaceSelections(emptyStrings);
+            cm.setCursor(selectionStart);
+            cm.replaceRange(text, selectionStart, selectionStart);
+            curPosFinal = selectionStart;
+          } else {
+            cm.replaceRange(text, selectionStart, selectionEnd);
+            curPosFinal = cm.posFromIndex(cm.indexFromPos(selectionStart) + text.length - 1);
+          }
+          // restore the the curEnd marker
+          if(lastSelectionCurEnd) {
+            vim.lastSelection.headMark = cm.setBookmark(lastSelectionCurEnd);
+          }
+          if (linewise) {
+            curPosFinal.ch=0;
+          }
+        } else {
+          if (blockwise) {
+            cm.setCursor(cur);
+            for (var i = 0; i < text.length; i++) {
+              var line = cur.line+i;
+              if (line > cm.lastLine()) {
+                cm.replaceRange('\n',  Pos(line, 0));
+              }
+              var lastCh = lineLength(cm, line);
+              if (lastCh < cur.ch) {
+                extendLineToColumn(cm, line, cur.ch);
+              }
+            }
+            cm.setCursor(cur);
+            selectBlock(cm, Pos(cur.line + text.length-1, cur.ch));
+            cm.replaceSelections(text);
+            curPosFinal = cur;
+          } else {
+            cm.replaceRange(text, cur);
+            // Now fine tune the cursor to where we want it.
+            if (linewise && actionArgs.after) {
+              curPosFinal = Pos(
+              cur.line + 1,
+              findFirstNonWhiteSpaceCharacter(cm.getLine(cur.line + 1)));
+            } else if (linewise && !actionArgs.after) {
+              curPosFinal = Pos(
+                cur.line,
+                findFirstNonWhiteSpaceCharacter(cm.getLine(cur.line)));
+            } else if (!linewise && actionArgs.after) {
+              idx = cm.indexFromPos(cur);
+              curPosFinal = cm.posFromIndex(idx + text.length - 1);
+            } else {
+              idx = cm.indexFromPos(cur);
+              curPosFinal = cm.posFromIndex(idx + text.length);
+            }
+          }
+        }
+        if (vim.visualMode) {
+          exitVisualMode(cm, false);
+        }
+        cm.setCursor(curPosFinal);
+      },
+      undo: function(cm, actionArgs) {
+        cm.operation(function() {
+          repeatFn(cm, CodeMirror.commands.undo, actionArgs.repeat)();
+          cm.setCursor(cm.getCursor('anchor'));
+        });
+      },
+      redo: function(cm, actionArgs) {
+        repeatFn(cm, CodeMirror.commands.redo, actionArgs.repeat)();
+      },
+      setRegister: function(_cm, actionArgs, vim) {
+        vim.inputState.registerName = actionArgs.selectedCharacter;
+      },
+      setMark: function(cm, actionArgs, vim) {
+        var markName = actionArgs.selectedCharacter;
+        updateMark(cm, vim, markName, cm.getCursor());
+      },
+      replace: function(cm, actionArgs, vim) {
+        var replaceWith = actionArgs.selectedCharacter;
+        var curStart = cm.getCursor();
+        var replaceTo;
+        var curEnd;
+        var selections = cm.listSelections();
+        if (vim.visualMode) {
+          curStart = cm.getCursor('start');
+          curEnd = cm.getCursor('end');
+        } else {
+          var line = cm.getLine(curStart.line);
+          replaceTo = curStart.ch + actionArgs.repeat;
+          if (replaceTo > line.length) {
+            replaceTo=line.length;
+          }
+          curEnd = Pos(curStart.line, replaceTo);
+        }
+        if (replaceWith=='\n') {
+          if (!vim.visualMode) cm.replaceRange('', curStart, curEnd);
+          // special case, where vim help says to replace by just one line-break
+          (CodeMirror.commands.newlineAndIndentContinueComment || CodeMirror.commands.newlineAndIndent)(cm);
+        } else {
+          var replaceWithStr = cm.getRange(curStart, curEnd);
+          //replace all characters in range by selected, but keep linebreaks
+          replaceWithStr = replaceWithStr.replace(/[^\n]/g, replaceWith);
+          if (vim.visualBlock) {
+            // Tabs are split in visua block before replacing
+            var spaces = new Array(cm.getOption("tabSize")+1).join(' ');
+            replaceWithStr = cm.getSelection();
+            replaceWithStr = replaceWithStr.replace(/\t/g, spaces).replace(/[^\n]/g, replaceWith).split('\n');
+            cm.replaceSelections(replaceWithStr);
+          } else {
+            cm.replaceRange(replaceWithStr, curStart, curEnd);
+          }
+          if (vim.visualMode) {
+            curStart = cursorIsBefore(selections[0].anchor, selections[0].head) ?
+                         selections[0].anchor : selections[0].head;
+            cm.setCursor(curStart);
+            exitVisualMode(cm, false);
+          } else {
+            cm.setCursor(offsetCursor(curEnd, 0, -1));
+          }
+        }
+      },
+      incrementNumberToken: function(cm, actionArgs) {
+        var cur = cm.getCursor();
+        var lineStr = cm.getLine(cur.line);
+        var re = /-?\d+/g;
+        var match;
+        var start;
+        var end;
+        var numberStr;
+        var token;
+        while ((match = re.exec(lineStr)) !== null) {
+          token = match[0];
+          start = match.index;
+          end = start + token.length;
+          if (cur.ch < end)break;
+        }
+        if (!actionArgs.backtrack && (end <= cur.ch))return;
+        if (token) {
+          var increment = actionArgs.increase ? 1 : -1;
+          var number = parseInt(token) + (increment * actionArgs.repeat);
+          var from = Pos(cur.line, start);
+          var to = Pos(cur.line, end);
+          numberStr = number.toString();
+          cm.replaceRange(numberStr, from, to);
+        } else {
+          return;
+        }
+        cm.setCursor(Pos(cur.line, start + numberStr.length - 1));
+      },
+      repeatLastEdit: function(cm, actionArgs, vim) {
+        var lastEditInputState = vim.lastEditInputState;
+        if (!lastEditInputState) { return; }
+        var repeat = actionArgs.repeat;
+        if (repeat && actionArgs.repeatIsExplicit) {
+          vim.lastEditInputState.repeatOverride = repeat;
+        } else {
+          repeat = vim.lastEditInputState.repeatOverride || repeat;
+        }
+        repeatLastEdit(cm, vim, repeat, false /** repeatForInsert */);
+      },
+      indent: function(cm, actionArgs) {
+        cm.indentLine(cm.getCursor().line, actionArgs.indentRight);
+      },
+      exitInsertMode: exitInsertMode
+    };
+
+    function defineAction(name, fn) {
+      actions[name] = fn;
+    }
+
+    /*
+     * Below are miscellaneous utility functions used by vim.js
+     */
+
+    /**
+     * Clips cursor to ensure that line is within the buffer's range
+     * If includeLineBreak is true, then allow cur.ch == lineLength.
+     */
+    function clipCursorToContent(cm, cur, includeLineBreak) {
+      var line = Math.min(Math.max(cm.firstLine(), cur.line), cm.lastLine() );
+      var maxCh = lineLength(cm, line) - 1;
+      maxCh = (includeLineBreak) ? maxCh + 1 : maxCh;
+      var ch = Math.min(Math.max(0, cur.ch), maxCh);
+      return Pos(line, ch);
+    }
+    function copyArgs(args) {
+      var ret = {};
+      for (var prop in args) {
+        if (args.hasOwnProperty(prop)) {
+          ret[prop] = args[prop];
+        }
+      }
+      return ret;
+    }
+    function offsetCursor(cur, offsetLine, offsetCh) {
+      if (typeof offsetLine === 'object') {
+        offsetCh = offsetLine.ch;
+        offsetLine = offsetLine.line;
+      }
+      return Pos(cur.line + offsetLine, cur.ch + offsetCh);
+    }
+    function getOffset(anchor, head) {
+      return {
+        line: head.line - anchor.line,
+        ch: head.line - anchor.line
+      };
+    }
+    function commandMatches(keys, keyMap, context, inputState) {
+      // Partial matches are not applied. They inform the key handler
+      // that the current key sequence is a subsequence of a valid key
+      // sequence, so that the key buffer is not cleared.
+      var match, partial = [], full = [];
+      for (var i = 0; i < keyMap.length; i++) {
+        var command = keyMap[i];
+        if (context == 'insert' && command.context != 'insert' ||
+            command.context && command.context != context ||
+            inputState.operator && command.type == 'action' ||
+            !(match = commandMatch(keys, command.keys))) { continue; }
+        if (match == 'partial') { partial.push(command); }
+        if (match == 'full') { full.push(command); }
+      }
+      return {
+        partial: partial.length && partial,
+        full: full.length && full
+      };
+    }
+    function commandMatch(pressed, mapped) {
+      if (mapped.slice(-11) == '') {
+        // Last character matches anything.
+        var prefixLen = mapped.length - 11;
+        var pressedPrefix = pressed.slice(0, prefixLen);
+        var mappedPrefix = mapped.slice(0, prefixLen);
+        return pressedPrefix == mappedPrefix && pressed.length > prefixLen ? 'full' :
+               mappedPrefix.indexOf(pressedPrefix) == 0 ? 'partial' : false;
+      } else {
+        return pressed == mapped ? 'full' :
+               mapped.indexOf(pressed) == 0 ? 'partial' : false;
+      }
+    }
+    function lastChar(keys) {
+      var match = /^.*(<[\w\-]+>)$/.exec(keys);
+      var selectedCharacter = match ? match[1] : keys.slice(-1);
+      if (selectedCharacter.length > 1){
+        switch(selectedCharacter){
+          case '':
+            selectedCharacter='\n';
+            break;
+          case '':
+            selectedCharacter=' ';
+            break;
+          default:
+            break;
+        }
+      }
+      return selectedCharacter;
+    }
+    function repeatFn(cm, fn, repeat) {
+      return function() {
+        for (var i = 0; i < repeat; i++) {
+          fn(cm);
+        }
+      };
+    }
+    function copyCursor(cur) {
+      return Pos(cur.line, cur.ch);
+    }
+    function cursorEqual(cur1, cur2) {
+      return cur1.ch == cur2.ch && cur1.line == cur2.line;
+    }
+    function cursorIsBefore(cur1, cur2) {
+      if (cur1.line < cur2.line) {
+        return true;
+      }
+      if (cur1.line == cur2.line && cur1.ch < cur2.ch) {
+        return true;
+      }
+      return false;
+    }
+    function cursorMin(cur1, cur2) {
+      if (arguments.length > 2) {
+        cur2 = cursorMin.apply(undefined, Array.prototype.slice.call(arguments, 1));
+      }
+      return cursorIsBefore(cur1, cur2) ? cur1 : cur2;
+    }
+    function cursorMax(cur1, cur2) {
+      if (arguments.length > 2) {
+        cur2 = cursorMax.apply(undefined, Array.prototype.slice.call(arguments, 1));
+      }
+      return cursorIsBefore(cur1, cur2) ? cur2 : cur1;
+    }
+    function cursorIsBetween(cur1, cur2, cur3) {
+      // returns true if cur2 is between cur1 and cur3.
+      var cur1before2 = cursorIsBefore(cur1, cur2);
+      var cur2before3 = cursorIsBefore(cur2, cur3);
+      return cur1before2 && cur2before3;
+    }
+    function lineLength(cm, lineNum) {
+      return cm.getLine(lineNum).length;
+    }
+    function trim(s) {
+      if (s.trim) {
+        return s.trim();
+      }
+      return s.replace(/^\s+|\s+$/g, '');
+    }
+    function escapeRegex(s) {
+      return s.replace(/([.?*+$\[\]\/\\(){}|\-])/g, '\\$1');
+    }
+    function extendLineToColumn(cm, lineNum, column) {
+      var endCh = lineLength(cm, lineNum);
+      var spaces = new Array(column-endCh+1).join(' ');
+      cm.setCursor(Pos(lineNum, endCh));
+      cm.replaceRange(spaces, cm.getCursor());
+    }
+    // This functions selects a rectangular block
+    // of text with selectionEnd as any of its corner
+    // Height of block:
+    // Difference in selectionEnd.line and first/last selection.line
+    // Width of the block:
+    // Distance between selectionEnd.ch and any(first considered here) selection.ch
+    function selectBlock(cm, selectionEnd) {
+      var selections = [], ranges = cm.listSelections();
+      var head = copyCursor(cm.clipPos(selectionEnd));
+      var isClipped = !cursorEqual(selectionEnd, head);
+      var curHead = cm.getCursor('head');
+      var primIndex = getIndex(ranges, curHead);
+      var wasClipped = cursorEqual(ranges[primIndex].head, ranges[primIndex].anchor);
+      var max = ranges.length - 1;
+      var index = max - primIndex > primIndex ? max : 0;
+      var base = ranges[index].anchor;
+
+      var firstLine = Math.min(base.line, head.line);
+      var lastLine = Math.max(base.line, head.line);
+      var baseCh = base.ch, headCh = head.ch;
+
+      var dir = ranges[index].head.ch - baseCh;
+      var newDir = headCh - baseCh;
+      if (dir > 0 && newDir <= 0) {
+        baseCh++;
+        if (!isClipped) { headCh--; }
+      } else if (dir < 0 && newDir >= 0) {
+        baseCh--;
+        if (!wasClipped) { headCh++; }
+      } else if (dir < 0 && newDir == -1) {
+        baseCh--;
+        headCh++;
+      }
+      for (var line = firstLine; line <= lastLine; line++) {
+        var range = {anchor: new Pos(line, baseCh), head: new Pos(line, headCh)};
+        selections.push(range);
+      }
+      primIndex = head.line == lastLine ? selections.length - 1 : 0;
+      cm.setSelections(selections);
+      selectionEnd.ch = headCh;
+      base.ch = baseCh;
+      return base;
+    }
+    function selectForInsert(cm, head, height) {
+      var sel = [];
+      for (var i = 0; i < height; i++) {
+        var lineHead = offsetCursor(head, i, 0);
+        sel.push({anchor: lineHead, head: lineHead});
+      }
+      cm.setSelections(sel, 0);
+    }
+    // getIndex returns the index of the cursor in the selections.
+    function getIndex(ranges, cursor, end) {
+      for (var i = 0; i < ranges.length; i++) {
+        var atAnchor = end != 'head' && cursorEqual(ranges[i].anchor, cursor);
+        var atHead = end != 'anchor' && cursorEqual(ranges[i].head, cursor);
+        if (atAnchor || atHead) {
+          return i;
+        }
+      }
+      return -1;
+    }
+    function getSelectedAreaRange(cm, vim) {
+      var lastSelection = vim.lastSelection;
+      var getCurrentSelectedAreaRange = function() {
+        var selections = cm.listSelections();
+        var start =  selections[0];
+        var end = selections[selections.length-1];
+        var selectionStart = cursorIsBefore(start.anchor, start.head) ? start.anchor : start.head;
+        var selectionEnd = cursorIsBefore(end.anchor, end.head) ? end.head : end.anchor;
+        return [selectionStart, selectionEnd];
+      };
+      var getLastSelectedAreaRange = function() {
+        var selectionStart = cm.getCursor();
+        var selectionEnd = cm.getCursor();
+        var block = lastSelection.visualBlock;
+        if (block) {
+          var width = block.width;
+          var height = block.height;
+          selectionEnd = Pos(selectionStart.line + height, selectionStart.ch + width);
+          var selections = [];
+          // selectBlock creates a 'proper' rectangular block.
+          // We do not want that in all cases, so we manually set selections.
+          for (var i = selectionStart.line; i < selectionEnd.line; i++) {
+            var anchor = Pos(i, selectionStart.ch);
+            var head = Pos(i, selectionEnd.ch);
+            var range = {anchor: anchor, head: head};
+            selections.push(range);
+          }
+          cm.setSelections(selections);
+        } else {
+          var start = lastSelection.anchorMark.find();
+          var end = lastSelection.headMark.find();
+          var line = end.line - start.line;
+          var ch = end.ch - start.ch;
+          selectionEnd = {line: selectionEnd.line + line, ch: line ? selectionEnd.ch : ch + selectionEnd.ch};
+          if (lastSelection.visualLine) {
+            selectionStart = Pos(selectionStart.line, 0);
+            selectionEnd = Pos(selectionEnd.line, lineLength(cm, selectionEnd.line));
+          }
+          cm.setSelection(selectionStart, selectionEnd);
+        }
+        return [selectionStart, selectionEnd];
+      };
+      if (!vim.visualMode) {
+      // In case of replaying the action.
+        return getLastSelectedAreaRange();
+      } else {
+        return getCurrentSelectedAreaRange();
+      }
+    }
+    // Updates the previous selection with the current selection's values. This
+    // should only be called in visual mode.
+    function updateLastSelection(cm, vim) {
+      var anchor = vim.sel.anchor;
+      var head = vim.sel.head;
+      // To accommodate the effect of lastPastedText in the last selection
+      if (vim.lastPastedText) {
+        head = cm.posFromIndex(cm.indexFromPos(anchor) + vim.lastPastedText.length);
+        vim.lastPastedText = null;
+      }
+      vim.lastSelection = {'anchorMark': cm.setBookmark(anchor),
+                           'headMark': cm.setBookmark(head),
+                           'anchor': copyCursor(anchor),
+                           'head': copyCursor(head),
+                           'visualMode': vim.visualMode,
+                           'visualLine': vim.visualLine,
+                           'visualBlock': vim.visualBlock};
+    }
+    function expandSelection(cm, start, end) {
+      var sel = cm.state.vim.sel;
+      var head = sel.head;
+      var anchor = sel.anchor;
+      var tmp;
+      if (cursorIsBefore(end, start)) {
+        tmp = end;
+        end = start;
+        start = tmp;
+      }
+      if (cursorIsBefore(head, anchor)) {
+        head = cursorMin(start, head);
+        anchor = cursorMax(anchor, end);
+      } else {
+        anchor = cursorMin(start, anchor);
+        head = cursorMax(head, end);
+        head = offsetCursor(head, 0, -1);
+        if (head.ch == -1 && head.line != cm.firstLine()) {
+          head = Pos(head.line - 1, lineLength(cm, head.line - 1));
+        }
+      }
+      return [anchor, head];
+    }
+    /**
+     * Updates the CodeMirror selection to match the provided vim selection.
+     * If no arguments are given, it uses the current vim selection state.
+     */
+    function updateCmSelection(cm, sel, mode) {
+      var vim = cm.state.vim;
+      sel = sel || vim.sel;
+      var mode = mode ||
+        vim.visualLine ? 'line' : vim.visualBlock ? 'block' : 'char';
+      var cmSel = makeCmSelection(cm, sel, mode);
+      cm.setSelections(cmSel.ranges, cmSel.primary);
+      updateFakeCursor(cm);
+    }
+    function makeCmSelection(cm, sel, mode, exclusive) {
+      var head = copyCursor(sel.head);
+      var anchor = copyCursor(sel.anchor);
+      if (mode == 'char') {
+        var headOffset = !exclusive && !cursorIsBefore(sel.head, sel.anchor) ? 1 : 0;
+        var anchorOffset = cursorIsBefore(sel.head, sel.anchor) ? 1 : 0;
+        head = offsetCursor(sel.head, 0, headOffset);
+        anchor = offsetCursor(sel.anchor, 0, anchorOffset);
+        return {
+          ranges: [{anchor: anchor, head: head}],
+          primary: 0
+        };
+      } else if (mode == 'line') {
+        if (!cursorIsBefore(sel.head, sel.anchor)) {
+          anchor.ch = 0;
+
+          var lastLine = cm.lastLine();
+          if (head.line > lastLine) {
+            head.line = lastLine;
+          }
+          head.ch = lineLength(cm, head.line);
+        } else {
+          head.ch = 0;
+          anchor.ch = lineLength(cm, anchor.line);
+        }
+        return {
+          ranges: [{anchor: anchor, head: head}],
+          primary: 0
+        };
+      } else if (mode == 'block') {
+        var top = Math.min(anchor.line, head.line),
+            left = Math.min(anchor.ch, head.ch),
+            bottom = Math.max(anchor.line, head.line),
+            right = Math.max(anchor.ch, head.ch) + 1;
+        var height = bottom - top + 1;
+        var primary = head.line == top ? 0 : height - 1;
+        var ranges = [];
+        for (var i = 0; i < height; i++) {
+          ranges.push({
+            anchor: Pos(top + i, left),
+            head: Pos(top + i, right)
+          });
+        }
+        return {
+          ranges: ranges,
+          primary: primary
+        };
+      }
+    }
+    function getHead(cm) {
+      var cur = cm.getCursor('head');
+      if (cm.getSelection().length == 1) {
+        // Small corner case when only 1 character is selected. The "real"
+        // head is the left of head and anchor.
+        cur = cursorMin(cur, cm.getCursor('anchor'));
+      }
+      return cur;
+    }
+
+    /**
+     * If moveHead is set to false, the CodeMirror selection will not be
+     * touched. The caller assumes the responsibility of putting the cursor
+    * in the right place.
+     */
+    function exitVisualMode(cm, moveHead) {
+      var vim = cm.state.vim;
+      if (moveHead !== false) {
+        cm.setCursor(clipCursorToContent(cm, vim.sel.head));
+      }
+      updateLastSelection(cm, vim);
+      vim.visualMode = false;
+      vim.visualLine = false;
+      vim.visualBlock = false;
+      CodeMirror.signal(cm, "vim-mode-change", {mode: "normal"});
+      if (vim.fakeCursor) {
+        vim.fakeCursor.clear();
+      }
+    }
+
+    // Remove any trailing newlines from the selection. For
+    // example, with the caret at the start of the last word on the line,
+    // 'dw' should word, but not the newline, while 'w' should advance the
+    // caret to the first character of the next line.
+    function clipToLine(cm, curStart, curEnd) {
+      var selection = cm.getRange(curStart, curEnd);
+      // Only clip if the selection ends with trailing newline + whitespace
+      if (/\n\s*$/.test(selection)) {
+        var lines = selection.split('\n');
+        // We know this is all whitespace.
+        lines.pop();
+
+        // Cases:
+        // 1. Last word is an empty line - do not clip the trailing '\n'
+        // 2. Last word is not an empty line - clip the trailing '\n'
+        var line;
+        // Find the line containing the last word, and clip all whitespace up
+        // to it.
+        for (var line = lines.pop(); lines.length > 0 && line && isWhiteSpaceString(line); line = lines.pop()) {
+          curEnd.line--;
+          curEnd.ch = 0;
+        }
+        // If the last word is not an empty line, clip an additional newline
+        if (line) {
+          curEnd.line--;
+          curEnd.ch = lineLength(cm, curEnd.line);
+        } else {
+          curEnd.ch = 0;
+        }
+      }
+    }
+
+    // Expand the selection to line ends.
+    function expandSelectionToLine(_cm, curStart, curEnd) {
+      curStart.ch = 0;
+      curEnd.ch = 0;
+      curEnd.line++;
+    }
+
+    function findFirstNonWhiteSpaceCharacter(text) {
+      if (!text) {
+        return 0;
+      }
+      var firstNonWS = text.search(/\S/);
+      return firstNonWS == -1 ? text.length : firstNonWS;
+    }
+
+    function expandWordUnderCursor(cm, inclusive, _forward, bigWord, noSymbol) {
+      var cur = getHead(cm);
+      var line = cm.getLine(cur.line);
+      var idx = cur.ch;
+
+      // Seek to first word or non-whitespace character, depending on if
+      // noSymbol is true.
+      var test = noSymbol ? wordCharTest[0] : bigWordCharTest [0];
+      while (!test(line.charAt(idx))) {
+        idx++;
+        if (idx >= line.length) { return null; }
+      }
+
+      if (bigWord) {
+        test = bigWordCharTest[0];
+      } else {
+        test = wordCharTest[0];
+        if (!test(line.charAt(idx))) {
+          test = wordCharTest[1];
+        }
+      }
+
+      var end = idx, start = idx;
+      while (test(line.charAt(end)) && end < line.length) { end++; }
+      while (test(line.charAt(start)) && start >= 0) { start--; }
+      start++;
+
+      if (inclusive) {
+        // If present, include all whitespace after word.
+        // Otherwise, include all whitespace before word, except indentation.
+        var wordEnd = end;
+        while (/\s/.test(line.charAt(end)) && end < line.length) { end++; }
+        if (wordEnd == end) {
+          var wordStart = start;
+          while (/\s/.test(line.charAt(start - 1)) && start > 0) { start--; }
+          if (!start) { start = wordStart; }
+        }
+      }
+      return { start: Pos(cur.line, start), end: Pos(cur.line, end) };
+    }
+
+    function recordJumpPosition(cm, oldCur, newCur) {
+      if (!cursorEqual(oldCur, newCur)) {
+        vimGlobalState.jumpList.add(cm, oldCur, newCur);
+      }
+    }
+
+    function recordLastCharacterSearch(increment, args) {
+        vimGlobalState.lastCharacterSearch.increment = increment;
+        vimGlobalState.lastCharacterSearch.forward = args.forward;
+        vimGlobalState.lastCharacterSearch.selectedCharacter = args.selectedCharacter;
+    }
+
+    var symbolToMode = {
+        '(': 'bracket', ')': 'bracket', '{': 'bracket', '}': 'bracket',
+        '[': 'section', ']': 'section',
+        '*': 'comment', '/': 'comment',
+        'm': 'method', 'M': 'method',
+        '#': 'preprocess'
+    };
+    var findSymbolModes = {
+      bracket: {
+        isComplete: function(state) {
+          if (state.nextCh === state.symb) {
+            state.depth++;
+            if (state.depth >= 1)return true;
+          } else if (state.nextCh === state.reverseSymb) {
+            state.depth--;
+          }
+          return false;
+        }
+      },
+      section: {
+        init: function(state) {
+          state.curMoveThrough = true;
+          state.symb = (state.forward ? ']' : '[') === state.symb ? '{' : '}';
+        },
+        isComplete: function(state) {
+          return state.index === 0 && state.nextCh === state.symb;
+        }
+      },
+      comment: {
+        isComplete: function(state) {
+          var found = state.lastCh === '*' && state.nextCh === '/';
+          state.lastCh = state.nextCh;
+          return found;
+        }
+      },
+      // TODO: The original Vim implementation only operates on level 1 and 2.
+      // The current implementation doesn't check for code block level and
+      // therefore it operates on any levels.
+      method: {
+        init: function(state) {
+          state.symb = (state.symb === 'm' ? '{' : '}');
+          state.reverseSymb = state.symb === '{' ? '}' : '{';
+        },
+        isComplete: function(state) {
+          if (state.nextCh === state.symb)return true;
+          return false;
+        }
+      },
+      preprocess: {
+        init: function(state) {
+          state.index = 0;
+        },
+        isComplete: function(state) {
+          if (state.nextCh === '#') {
+            var token = state.lineText.match(/#(\w+)/)[1];
+            if (token === 'endif') {
+              if (state.forward && state.depth === 0) {
+                return true;
+              }
+              state.depth++;
+            } else if (token === 'if') {
+              if (!state.forward && state.depth === 0) {
+                return true;
+              }
+              state.depth--;
+            }
+            if (token === 'else' && state.depth === 0)return true;
+          }
+          return false;
+        }
+      }
+    };
+    function findSymbol(cm, repeat, forward, symb) {
+      var cur = copyCursor(cm.getCursor());
+      var increment = forward ? 1 : -1;
+      var endLine = forward ? cm.lineCount() : -1;
+      var curCh = cur.ch;
+      var line = cur.line;
+      var lineText = cm.getLine(line);
+      var state = {
+        lineText: lineText,
+        nextCh: lineText.charAt(curCh),
+        lastCh: null,
+        index: curCh,
+        symb: symb,
+        reverseSymb: (forward ?  { ')': '(', '}': '{' } : { '(': ')', '{': '}' })[symb],
+        forward: forward,
+        depth: 0,
+        curMoveThrough: false
+      };
+      var mode = symbolToMode[symb];
+      if (!mode)return cur;
+      var init = findSymbolModes[mode].init;
+      var isComplete = findSymbolModes[mode].isComplete;
+      if (init) { init(state); }
+      while (line !== endLine && repeat) {
+        state.index += increment;
+        state.nextCh = state.lineText.charAt(state.index);
+        if (!state.nextCh) {
+          line += increment;
+          state.lineText = cm.getLine(line) || '';
+          if (increment > 0) {
+            state.index = 0;
+          } else {
+            var lineLen = state.lineText.length;
+            state.index = (lineLen > 0) ? (lineLen-1) : 0;
+          }
+          state.nextCh = state.lineText.charAt(state.index);
+        }
+        if (isComplete(state)) {
+          cur.line = line;
+          cur.ch = state.index;
+          repeat--;
+        }
+      }
+      if (state.nextCh || state.curMoveThrough) {
+        return Pos(line, state.index);
+      }
+      return cur;
+    }
+
+    /**
+     * Returns the boundaries of the next word. If the cursor in the middle of
+     * the word, then returns the boundaries of the current word, starting at
+     * the cursor. If the cursor is at the start/end of a word, and we are going
+     * forward/backward, respectively, find the boundaries of the next word.
+     *
+     * @param {CodeMirror} cm CodeMirror object.
+     * @param {Cursor} cur The cursor position.
+     * @param {boolean} forward True to search forward. False to search
+     *     backward.
+     * @param {boolean} bigWord True if punctuation count as part of the word.
+     *     False if only [a-zA-Z0-9] characters count as part of the word.
+     * @param {boolean} emptyLineIsWord True if empty lines should be treated
+     *     as words.
+     * @return {Object{from:number, to:number, line: number}} The boundaries of
+     *     the word, or null if there are no more words.
+     */
+    function findWord(cm, cur, forward, bigWord, emptyLineIsWord) {
+      var lineNum = cur.line;
+      var pos = cur.ch;
+      var line = cm.getLine(lineNum);
+      var dir = forward ? 1 : -1;
+      var charTests = bigWord ? bigWordCharTest: wordCharTest;
+
+      if (emptyLineIsWord && line == '') {
+        lineNum += dir;
+        line = cm.getLine(lineNum);
+        if (!isLine(cm, lineNum)) {
+          return null;
+        }
+        pos = (forward) ? 0 : line.length;
+      }
+
+      while (true) {
+        if (emptyLineIsWord && line == '') {
+          return { from: 0, to: 0, line: lineNum };
+        }
+        var stop = (dir > 0) ? line.length : -1;
+        var wordStart = stop, wordEnd = stop;
+        // Find bounds of next word.
+        while (pos != stop) {
+          var foundWord = false;
+          for (var i = 0; i < charTests.length && !foundWord; ++i) {
+            if (charTests[i](line.charAt(pos))) {
+              wordStart = pos;
+              // Advance to end of word.
+              while (pos != stop && charTests[i](line.charAt(pos))) {
+                pos += dir;
+              }
+              wordEnd = pos;
+              foundWord = wordStart != wordEnd;
+              if (wordStart == cur.ch && lineNum == cur.line &&
+                  wordEnd == wordStart + dir) {
+                // We started at the end of a word. Find the next one.
+                continue;
+              } else {
+                return {
+                  from: Math.min(wordStart, wordEnd + 1),
+                  to: Math.max(wordStart, wordEnd),
+                  line: lineNum };
+              }
+            }
+          }
+          if (!foundWord) {
+            pos += dir;
+          }
+        }
+        // Advance to next/prev line.
+        lineNum += dir;
+        if (!isLine(cm, lineNum)) {
+          return null;
+        }
+        line = cm.getLine(lineNum);
+        pos = (dir > 0) ? 0 : line.length;
+      }
+    }
+
+    /**
+     * @param {CodeMirror} cm CodeMirror object.
+     * @param {Pos} cur The position to start from.
+     * @param {int} repeat Number of words to move past.
+     * @param {boolean} forward True to search forward. False to search
+     *     backward.
+     * @param {boolean} wordEnd True to move to end of word. False to move to
+     *     beginning of word.
+     * @param {boolean} bigWord True if punctuation count as part of the word.
+     *     False if only alphabet characters count as part of the word.
+     * @return {Cursor} The position the cursor should move to.
+     */
+    function moveToWord(cm, cur, repeat, forward, wordEnd, bigWord) {
+      var curStart = copyCursor(cur);
+      var words = [];
+      if (forward && !wordEnd || !forward && wordEnd) {
+        repeat++;
+      }
+      // For 'e', empty lines are not considered words, go figure.
+      var emptyLineIsWord = !(forward && wordEnd);
+      for (var i = 0; i < repeat; i++) {
+        var word = findWord(cm, cur, forward, bigWord, emptyLineIsWord);
+        if (!word) {
+          var eodCh = lineLength(cm, cm.lastLine());
+          words.push(forward
+              ? {line: cm.lastLine(), from: eodCh, to: eodCh}
+              : {line: 0, from: 0, to: 0});
+          break;
+        }
+        words.push(word);
+        cur = Pos(word.line, forward ? (word.to - 1) : word.from);
+      }
+      var shortCircuit = words.length != repeat;
+      var firstWord = words[0];
+      var lastWord = words.pop();
+      if (forward && !wordEnd) {
+        // w
+        if (!shortCircuit && (firstWord.from != curStart.ch || firstWord.line != curStart.line)) {
+          // We did not start in the middle of a word. Discard the extra word at the end.
+          lastWord = words.pop();
+        }
+        return Pos(lastWord.line, lastWord.from);
+      } else if (forward && wordEnd) {
+        return Pos(lastWord.line, lastWord.to - 1);
+      } else if (!forward && wordEnd) {
+        // ge
+        if (!shortCircuit && (firstWord.to != curStart.ch || firstWord.line != curStart.line)) {
+          // We did not start in the middle of a word. Discard the extra word at the end.
+          lastWord = words.pop();
+        }
+        return Pos(lastWord.line, lastWord.to);
+      } else {
+        // b
+        return Pos(lastWord.line, lastWord.from);
+      }
+    }
+
+    function moveToCharacter(cm, repeat, forward, character) {
+      var cur = cm.getCursor();
+      var start = cur.ch;
+      var idx;
+      for (var i = 0; i < repeat; i ++) {
+        var line = cm.getLine(cur.line);
+        idx = charIdxInLine(start, line, character, forward, true);
+        if (idx == -1) {
+          return null;
+        }
+        start = idx;
+      }
+      return Pos(cm.getCursor().line, idx);
+    }
+
+    function moveToColumn(cm, repeat) {
+      // repeat is always >= 1, so repeat - 1 always corresponds
+      // to the column we want to go to.
+      var line = cm.getCursor().line;
+      return clipCursorToContent(cm, Pos(line, repeat - 1));
+    }
+
+    function updateMark(cm, vim, markName, pos) {
+      if (!inArray(markName, validMarks)) {
+        return;
+      }
+      if (vim.marks[markName]) {
+        vim.marks[markName].clear();
+      }
+      vim.marks[markName] = cm.setBookmark(pos);
+    }
+
+    function charIdxInLine(start, line, character, forward, includeChar) {
+      // Search for char in line.
+      // motion_options: {forward, includeChar}
+      // If includeChar = true, include it too.
+      // If forward = true, search forward, else search backwards.
+      // If char is not found on this line, do nothing
+      var idx;
+      if (forward) {
+        idx = line.indexOf(character, start + 1);
+        if (idx != -1 && !includeChar) {
+          idx -= 1;
+        }
+      } else {
+        idx = line.lastIndexOf(character, start - 1);
+        if (idx != -1 && !includeChar) {
+          idx += 1;
+        }
+      }
+      return idx;
+    }
+
+    function findParagraph(cm, head, repeat, dir, inclusive) {
+      var line = head.line;
+      var min = cm.firstLine();
+      var max = cm.lastLine();
+      var start, end, i = line;
+      function isEmpty(i) { return !cm.getLine(i); }
+      function isBoundary(i, dir, any) {
+        if (any) { return isEmpty(i) != isEmpty(i + dir); }
+        return !isEmpty(i) && isEmpty(i + dir);
+      }
+      if (dir) {
+        while (min <= i && i <= max && repeat > 0) {
+          if (isBoundary(i, dir)) { repeat--; }
+          i += dir;
+        }
+        return new Pos(i, 0);
+      }
+
+      var vim = cm.state.vim;
+      if (vim.visualLine && isBoundary(line, 1, true)) {
+        var anchor = vim.sel.anchor;
+        if (isBoundary(anchor.line, -1, true)) {
+          if (!inclusive || anchor.line != line) {
+            line += 1;
+          }
+        }
+      }
+      var startState = isEmpty(line);
+      for (i = line; i <= max && repeat; i++) {
+        if (isBoundary(i, 1, true)) {
+          if (!inclusive || isEmpty(i) != startState) {
+            repeat--;
+          }
+        }
+      }
+      end = new Pos(i, 0);
+      // select boundary before paragraph for the last one
+      if (i > max && !startState) { startState = true; }
+      else { inclusive = false; }
+      for (i = line; i > min; i--) {
+        if (!inclusive || isEmpty(i) == startState || i == line) {
+          if (isBoundary(i, -1, true)) { break; }
+        }
+      }
+      start = new Pos(i, 0);
+      return { start: start, end: end };
+    }
+
+    // TODO: perhaps this finagling of start and end positions belonds
+    // in codemirror/replaceRange?
+    function selectCompanionObject(cm, head, symb, inclusive) {
+      var cur = head, start, end;
+
+      var bracketRegexp = ({
+        '(': /[()]/, ')': /[()]/,
+        '[': /[[\]]/, ']': /[[\]]/,
+        '{': /[{}]/, '}': /[{}]/})[symb];
+      var openSym = ({
+        '(': '(', ')': '(',
+        '[': '[', ']': '[',
+        '{': '{', '}': '{'})[symb];
+      var curChar = cm.getLine(cur.line).charAt(cur.ch);
+      // Due to the behavior of scanForBracket, we need to add an offset if the
+      // cursor is on a matching open bracket.
+      var offset = curChar === openSym ? 1 : 0;
+
+      start = cm.scanForBracket(Pos(cur.line, cur.ch + offset), -1, null, {'bracketRegex': bracketRegexp});
+      end = cm.scanForBracket(Pos(cur.line, cur.ch + offset), 1, null, {'bracketRegex': bracketRegexp});
+
+      if (!start || !end) {
+        return { start: cur, end: cur };
+      }
+
+      start = start.pos;
+      end = end.pos;
+
+      if ((start.line == end.line && start.ch > end.ch)
+          || (start.line > end.line)) {
+        var tmp = start;
+        start = end;
+        end = tmp;
+      }
+
+      if (inclusive) {
+        end.ch += 1;
+      } else {
+        start.ch += 1;
+      }
+
+      return { start: start, end: end };
+    }
+
+    // Takes in a symbol and a cursor and tries to simulate text objects that
+    // have identical opening and closing symbols
+    // TODO support across multiple lines
+    function findBeginningAndEnd(cm, head, symb, inclusive) {
+      var cur = copyCursor(head);
+      var line = cm.getLine(cur.line);
+      var chars = line.split('');
+      var start, end, i, len;
+      var firstIndex = chars.indexOf(symb);
+
+      // the decision tree is to always look backwards for the beginning first,
+      // but if the cursor is in front of the first instance of the symb,
+      // then move the cursor forward
+      if (cur.ch < firstIndex) {
+        cur.ch = firstIndex;
+        // Why is this line even here???
+        // cm.setCursor(cur.line, firstIndex+1);
+      }
+      // otherwise if the cursor is currently on the closing symbol
+      else if (firstIndex < cur.ch && chars[cur.ch] == symb) {
+        end = cur.ch; // assign end to the current cursor
+        --cur.ch; // make sure to look backwards
+      }
+
+      // if we're currently on the symbol, we've got a start
+      if (chars[cur.ch] == symb && !end) {
+        start = cur.ch + 1; // assign start to ahead of the cursor
+      } else {
+        // go backwards to find the start
+        for (i = cur.ch; i > -1 && !start; i--) {
+          if (chars[i] == symb) {
+            start = i + 1;
+          }
+        }
+      }
+
+      // look forwards for the end symbol
+      if (start && !end) {
+        for (i = start, len = chars.length; i < len && !end; i++) {
+          if (chars[i] == symb) {
+            end = i;
+          }
+        }
+      }
+
+      // nothing found
+      if (!start || !end) {
+        return { start: cur, end: cur };
+      }
+
+      // include the symbols
+      if (inclusive) {
+        --start; ++end;
+      }
+
+      return {
+        start: Pos(cur.line, start),
+        end: Pos(cur.line, end)
+      };
+    }
+
+    // Search functions
+    defineOption('pcre', true, 'boolean');
+    function SearchState() {}
+    SearchState.prototype = {
+      getQuery: function() {
+        return vimGlobalState.query;
+      },
+      setQuery: function(query) {
+        vimGlobalState.query = query;
+      },
+      getOverlay: function() {
+        return this.searchOverlay;
+      },
+      setOverlay: function(overlay) {
+        this.searchOverlay = overlay;
+      },
+      isReversed: function() {
+        return vimGlobalState.isReversed;
+      },
+      setReversed: function(reversed) {
+        vimGlobalState.isReversed = reversed;
+      },
+      getScrollbarAnnotate: function() {
+        return this.annotate;
+      },
+      setScrollbarAnnotate: function(annotate) {
+        this.annotate = annotate;
+      }
+    };
+    function getSearchState(cm) {
+      var vim = cm.state.vim;
+      return vim.searchState_ || (vim.searchState_ = new SearchState());
+    }
+    function dialog(cm, template, shortText, onClose, options) {
+      if (cm.openDialog) {
+        cm.openDialog(template, onClose, { bottom: true, value: options.value,
+            onKeyDown: options.onKeyDown, onKeyUp: options.onKeyUp,
+            selectValueOnOpen: false});
+      }
+      else {
+        onClose(prompt(shortText, ''));
+      }
+    }
+    function splitBySlash(argString) {
+      var slashes = findUnescapedSlashes(argString) || [];
+      if (!slashes.length) return [];
+      var tokens = [];
+      // in case of strings like foo/bar
+      if (slashes[0] !== 0) return;
+      for (var i = 0; i < slashes.length; i++) {
+        if (typeof slashes[i] == 'number')
+          tokens.push(argString.substring(slashes[i] + 1, slashes[i+1]));
+      }
+      return tokens;
+    }
+
+    function findUnescapedSlashes(str) {
+      var escapeNextChar = false;
+      var slashes = [];
+      for (var i = 0; i < str.length; i++) {
+        var c = str.charAt(i);
+        if (!escapeNextChar && c == '/') {
+          slashes.push(i);
+        }
+        escapeNextChar = !escapeNextChar && (c == '\\');
+      }
+      return slashes;
+    }
+
+    // Translates a search string from ex (vim) syntax into javascript form.
+    function translateRegex(str) {
+      // When these match, add a '\' if unescaped or remove one if escaped.
+      var specials = '|(){';
+      // Remove, but never add, a '\' for these.
+      var unescape = '}';
+      var escapeNextChar = false;
+      var out = [];
+      for (var i = -1; i < str.length; i++) {
+        var c = str.charAt(i) || '';
+        var n = str.charAt(i+1) || '';
+        var specialComesNext = (n && specials.indexOf(n) != -1);
+        if (escapeNextChar) {
+          if (c !== '\\' || !specialComesNext) {
+            out.push(c);
+          }
+          escapeNextChar = false;
+        } else {
+          if (c === '\\') {
+            escapeNextChar = true;
+            // Treat the unescape list as special for removing, but not adding '\'.
+            if (n && unescape.indexOf(n) != -1) {
+              specialComesNext = true;
+            }
+            // Not passing this test means removing a '\'.
+            if (!specialComesNext || n === '\\') {
+              out.push(c);
+            }
+          } else {
+            out.push(c);
+            if (specialComesNext && n !== '\\') {
+              out.push('\\');
+            }
+          }
+        }
+      }
+      return out.join('');
+    }
+
+    // Translates the replace part of a search and replace from ex (vim) syntax into
+    // javascript form.  Similar to translateRegex, but additionally fixes back references
+    // (translates '\[0..9]' to '$[0..9]') and follows different rules for escaping '$'.
+    var charUnescapes = {'\\n': '\n', '\\r': '\r', '\\t': '\t'};
+    function translateRegexReplace(str) {
+      var escapeNextChar = false;
+      var out = [];
+      for (var i = -1; i < str.length; i++) {
+        var c = str.charAt(i) || '';
+        var n = str.charAt(i+1) || '';
+        if (charUnescapes[c + n]) {
+          out.push(charUnescapes[c+n]);
+          i++;
+        } else if (escapeNextChar) {
+          // At any point in the loop, escapeNextChar is true if the previous
+          // character was a '\' and was not escaped.
+          out.push(c);
+          escapeNextChar = false;
+        } else {
+          if (c === '\\') {
+            escapeNextChar = true;
+            if ((isNumber(n) || n === '$')) {
+              out.push('$');
+            } else if (n !== '/' && n !== '\\') {
+              out.push('\\');
+            }
+          } else {
+            if (c === '$') {
+              out.push('$');
+            }
+            out.push(c);
+            if (n === '/') {
+              out.push('\\');
+            }
+          }
+        }
+      }
+      return out.join('');
+    }
+
+    // Unescape \ and / in the replace part, for PCRE mode.
+    var unescapes = {'\\/': '/', '\\\\': '\\', '\\n': '\n', '\\r': '\r', '\\t': '\t'};
+    function unescapeRegexReplace(str) {
+      var stream = new CodeMirror.StringStream(str);
+      var output = [];
+      while (!stream.eol()) {
+        // Search for \.
+        while (stream.peek() && stream.peek() != '\\') {
+          output.push(stream.next());
+        }
+        var matched = false;
+        for (var matcher in unescapes) {
+          if (stream.match(matcher, true)) {
+            matched = true;
+            output.push(unescapes[matcher]);
+            break;
+          }
+        }
+        if (!matched) {
+          // Don't change anything
+          output.push(stream.next());
+        }
+      }
+      return output.join('');
+    }
+
+    /**
+     * Extract the regular expression from the query and return a Regexp object.
+     * Returns null if the query is blank.
+     * If ignoreCase is passed in, the Regexp object will have the 'i' flag set.
+     * If smartCase is passed in, and the query contains upper case letters,
+     *   then ignoreCase is overridden, and the 'i' flag will not be set.
+     * If the query contains the /i in the flag part of the regular expression,
+     *   then both ignoreCase and smartCase are ignored, and 'i' will be passed
+     *   through to the Regex object.
+     */
+    function parseQuery(query, ignoreCase, smartCase) {
+      // First update the last search register
+      var lastSearchRegister = vimGlobalState.registerController.getRegister('/');
+      lastSearchRegister.setText(query);
+      // Check if the query is already a regex.
+      if (query instanceof RegExp) { return query; }
+      // First try to extract regex + flags from the input. If no flags found,
+      // extract just the regex. IE does not accept flags directly defined in
+      // the regex string in the form /regex/flags
+      var slashes = findUnescapedSlashes(query);
+      var regexPart;
+      var forceIgnoreCase;
+      if (!slashes.length) {
+        // Query looks like 'regexp'
+        regexPart = query;
+      } else {
+        // Query looks like 'regexp/...'
+        regexPart = query.substring(0, slashes[0]);
+        var flagsPart = query.substring(slashes[0]);
+        forceIgnoreCase = (flagsPart.indexOf('i') != -1);
+      }
+      if (!regexPart) {
+        return null;
+      }
+      if (!getOption('pcre')) {
+        regexPart = translateRegex(regexPart);
+      }
+      if (smartCase) {
+        ignoreCase = (/^[^A-Z]*$/).test(regexPart);
+      }
+      var regexp = new RegExp(regexPart,
+          (ignoreCase || forceIgnoreCase) ? 'i' : undefined);
+      return regexp;
+    }
+    function showConfirm(cm, text) {
+      if (cm.openNotification) {
+        cm.openNotification('' + text + '',
+                            {bottom: true, duration: 5000});
+      } else {
+        alert(text);
+      }
+    }
+    function makePrompt(prefix, desc) {
+      var raw = '' +
+          (prefix || "") + '';
+      if (desc)
+        raw += ' ' + desc + '';
+      return raw;
+    }
+    var searchPromptDesc = '(Javascript regexp)';
+    function showPrompt(cm, options) {
+      var shortText = (options.prefix || '') + ' ' + (options.desc || '');
+      var prompt = makePrompt(options.prefix, options.desc);
+      dialog(cm, prompt, shortText, options.onClose, options);
+    }
+    function regexEqual(r1, r2) {
+      if (r1 instanceof RegExp && r2 instanceof RegExp) {
+          var props = ['global', 'multiline', 'ignoreCase', 'source'];
+          for (var i = 0; i < props.length; i++) {
+              var prop = props[i];
+              if (r1[prop] !== r2[prop]) {
+                  return false;
+              }
+          }
+          return true;
+      }
+      return false;
+    }
+    // Returns true if the query is valid.
+    function updateSearchQuery(cm, rawQuery, ignoreCase, smartCase) {
+      if (!rawQuery) {
+        return;
+      }
+      var state = getSearchState(cm);
+      var query = parseQuery(rawQuery, !!ignoreCase, !!smartCase);
+      if (!query) {
+        return;
+      }
+      highlightSearchMatches(cm, query);
+      if (regexEqual(query, state.getQuery())) {
+        return query;
+      }
+      state.setQuery(query);
+      return query;
+    }
+    function searchOverlay(query) {
+      if (query.source.charAt(0) == '^') {
+        var matchSol = true;
+      }
+      return {
+        token: function(stream) {
+          if (matchSol && !stream.sol()) {
+            stream.skipToEnd();
+            return;
+          }
+          var match = stream.match(query, false);
+          if (match) {
+            if (match[0].length == 0) {
+              // Matched empty string, skip to next.
+              stream.next();
+              return 'searching';
+            }
+            if (!stream.sol()) {
+              // Backtrack 1 to match \b
+              stream.backUp(1);
+              if (!query.exec(stream.next() + match[0])) {
+                stream.next();
+                return null;
+              }
+            }
+            stream.match(query);
+            return 'searching';
+          }
+          while (!stream.eol()) {
+            stream.next();
+            if (stream.match(query, false)) break;
+          }
+        },
+        query: query
+      };
+    }
+    function highlightSearchMatches(cm, query) {
+      var searchState = getSearchState(cm);
+      var overlay = searchState.getOverlay();
+      if (!overlay || query != overlay.query) {
+        if (overlay) {
+          cm.removeOverlay(overlay);
+        }
+        overlay = searchOverlay(query);
+        cm.addOverlay(overlay);
+        if (cm.showMatchesOnScrollbar) {
+          if (searchState.getScrollbarAnnotate()) {
+            searchState.getScrollbarAnnotate().clear();
+          }
+          searchState.setScrollbarAnnotate(cm.showMatchesOnScrollbar(query));
+        }
+        searchState.setOverlay(overlay);
+      }
+    }
+    function findNext(cm, prev, query, repeat) {
+      if (repeat === undefined) { repeat = 1; }
+      return cm.operation(function() {
+        var pos = cm.getCursor();
+        var cursor = cm.getSearchCursor(query, pos);
+        for (var i = 0; i < repeat; i++) {
+          var found = cursor.find(prev);
+          if (i == 0 && found && cursorEqual(cursor.from(), pos)) { found = cursor.find(prev); }
+          if (!found) {
+            // SearchCursor may have returned null because it hit EOF, wrap
+            // around and try again.
+            cursor = cm.getSearchCursor(query,
+                (prev) ? Pos(cm.lastLine()) : Pos(cm.firstLine(), 0) );
+            if (!cursor.find(prev)) {
+              return;
+            }
+          }
+        }
+        return cursor.from();
+      });
+    }
+    function clearSearchHighlight(cm) {
+      var state = getSearchState(cm);
+      cm.removeOverlay(getSearchState(cm).getOverlay());
+      state.setOverlay(null);
+      if (state.getScrollbarAnnotate()) {
+        state.getScrollbarAnnotate().clear();
+        state.setScrollbarAnnotate(null);
+      }
+    }
+    /**
+     * Check if pos is in the specified range, INCLUSIVE.
+     * Range can be specified with 1 or 2 arguments.
+     * If the first range argument is an array, treat it as an array of line
+     * numbers. Match pos against any of the lines.
+     * If the first range argument is a number,
+     *   if there is only 1 range argument, check if pos has the same line
+     *       number
+     *   if there are 2 range arguments, then check if pos is in between the two
+     *       range arguments.
+     */
+    function isInRange(pos, start, end) {
+      if (typeof pos != 'number') {
+        // Assume it is a cursor position. Get the line number.
+        pos = pos.line;
+      }
+      if (start instanceof Array) {
+        return inArray(pos, start);
+      } else {
+        if (end) {
+          return (pos >= start && pos <= end);
+        } else {
+          return pos == start;
+        }
+      }
+    }
+    function getUserVisibleLines(cm) {
+      var scrollInfo = cm.getScrollInfo();
+      var occludeToleranceTop = 6;
+      var occludeToleranceBottom = 10;
+      var from = cm.coordsChar({left:0, top: occludeToleranceTop + scrollInfo.top}, 'local');
+      var bottomY = scrollInfo.clientHeight - occludeToleranceBottom + scrollInfo.top;
+      var to = cm.coordsChar({left:0, top: bottomY}, 'local');
+      return {top: from.line, bottom: to.line};
+    }
+
+    function getMarkPos(cm, vim, markName) {
+      if (markName == '\'') {
+        var history = cm.doc.history.done;
+        var event = history[history.length - 2];
+        return event && event.ranges && event.ranges[0].head;
+      }
+
+      var mark = vim.marks[markName];
+      return mark && mark.find();
+    }
+
+    var ExCommandDispatcher = function() {
+      this.buildCommandMap_();
+    };
+    ExCommandDispatcher.prototype = {
+      processCommand: function(cm, input, opt_params) {
+        var that = this;
+        cm.operation(function () {
+          cm.curOp.isVimOp = true;
+          that._processCommand(cm, input, opt_params);
+        });
+      },
+      _processCommand: function(cm, input, opt_params) {
+        var vim = cm.state.vim;
+        var commandHistoryRegister = vimGlobalState.registerController.getRegister(':');
+        var previousCommand = commandHistoryRegister.toString();
+        if (vim.visualMode) {
+          exitVisualMode(cm);
+        }
+        var inputStream = new CodeMirror.StringStream(input);
+        // update ": with the latest command whether valid or invalid
+        commandHistoryRegister.setText(input);
+        var params = opt_params || {};
+        params.input = input;
+        try {
+          this.parseInput_(cm, inputStream, params);
+        } catch(e) {
+          showConfirm(cm, e);
+          throw e;
+        }
+        var command;
+        var commandName;
+        if (!params.commandName) {
+          // If only a line range is defined, move to the line.
+          if (params.line !== undefined) {
+            commandName = 'move';
+          }
+        } else {
+          command = this.matchCommand_(params.commandName);
+          if (command) {
+            commandName = command.name;
+            if (command.excludeFromCommandHistory) {
+              commandHistoryRegister.setText(previousCommand);
+            }
+            this.parseCommandArgs_(inputStream, params, command);
+            if (command.type == 'exToKey') {
+              // Handle Ex to Key mapping.
+              for (var i = 0; i < command.toKeys.length; i++) {
+                CodeMirror.Vim.handleKey(cm, command.toKeys[i], 'mapping');
+              }
+              return;
+            } else if (command.type == 'exToEx') {
+              // Handle Ex to Ex mapping.
+              this.processCommand(cm, command.toInput);
+              return;
+            }
+          }
+        }
+        if (!commandName) {
+          showConfirm(cm, 'Not an editor command ":' + input + '"');
+          return;
+        }
+        try {
+          exCommands[commandName](cm, params);
+          // Possibly asynchronous commands (e.g. substitute, which might have a
+          // user confirmation), are responsible for calling the callback when
+          // done. All others have it taken care of for them here.
+          if ((!command || !command.possiblyAsync) && params.callback) {
+            params.callback();
+          }
+        } catch(e) {
+          showConfirm(cm, e);
+          throw e;
+        }
+      },
+      parseInput_: function(cm, inputStream, result) {
+        inputStream.eatWhile(':');
+        // Parse range.
+        if (inputStream.eat('%')) {
+          result.line = cm.firstLine();
+          result.lineEnd = cm.lastLine();
+        } else {
+          result.line = this.parseLineSpec_(cm, inputStream);
+          if (result.line !== undefined && inputStream.eat(',')) {
+            result.lineEnd = this.parseLineSpec_(cm, inputStream);
+          }
+        }
+
+        // Parse command name.
+        var commandMatch = inputStream.match(/^(\w+)/);
+        if (commandMatch) {
+          result.commandName = commandMatch[1];
+        } else {
+          result.commandName = inputStream.match(/.*/)[0];
+        }
+
+        return result;
+      },
+      parseLineSpec_: function(cm, inputStream) {
+        var numberMatch = inputStream.match(/^(\d+)/);
+        if (numberMatch) {
+          return parseInt(numberMatch[1], 10) - 1;
+        }
+        switch (inputStream.next()) {
+          case '.':
+            return cm.getCursor().line;
+          case '$':
+            return cm.lastLine();
+          case '\'':
+            var markName = inputStream.next();
+            var markPos = getMarkPos(cm, cm.state.vim, markName);
+            if (!markPos) throw new Error('Mark not set');
+            return markPos.line;
+          default:
+            inputStream.backUp(1);
+            return undefined;
+        }
+      },
+      parseCommandArgs_: function(inputStream, params, command) {
+        if (inputStream.eol()) {
+          return;
+        }
+        params.argString = inputStream.match(/.*/)[0];
+        // Parse command-line arguments
+        var delim = command.argDelimiter || /\s+/;
+        var args = trim(params.argString).split(delim);
+        if (args.length && args[0]) {
+          params.args = args;
+        }
+      },
+      matchCommand_: function(commandName) {
+        // Return the command in the command map that matches the shortest
+        // prefix of the passed in command name. The match is guaranteed to be
+        // unambiguous if the defaultExCommandMap's shortNames are set up
+        // correctly. (see @code{defaultExCommandMap}).
+        for (var i = commandName.length; i > 0; i--) {
+          var prefix = commandName.substring(0, i);
+          if (this.commandMap_[prefix]) {
+            var command = this.commandMap_[prefix];
+            if (command.name.indexOf(commandName) === 0) {
+              return command;
+            }
+          }
+        }
+        return null;
+      },
+      buildCommandMap_: function() {
+        this.commandMap_ = {};
+        for (var i = 0; i < defaultExCommandMap.length; i++) {
+          var command = defaultExCommandMap[i];
+          var key = command.shortName || command.name;
+          this.commandMap_[key] = command;
+        }
+      },
+      map: function(lhs, rhs, ctx) {
+        if (lhs != ':' && lhs.charAt(0) == ':') {
+          if (ctx) { throw Error('Mode not supported for ex mappings'); }
+          var commandName = lhs.substring(1);
+          if (rhs != ':' && rhs.charAt(0) == ':') {
+            // Ex to Ex mapping
+            this.commandMap_[commandName] = {
+              name: commandName,
+              type: 'exToEx',
+              toInput: rhs.substring(1),
+              user: true
+            };
+          } else {
+            // Ex to key mapping
+            this.commandMap_[commandName] = {
+              name: commandName,
+              type: 'exToKey',
+              toKeys: rhs,
+              user: true
+            };
+          }
+        } else {
+          if (rhs != ':' && rhs.charAt(0) == ':') {
+            // Key to Ex mapping.
+            var mapping = {
+              keys: lhs,
+              type: 'keyToEx',
+              exArgs: { input: rhs.substring(1) }
+            };
+            if (ctx) { mapping.context = ctx; }
+            defaultKeymap.unshift(mapping);
+          } else {
+            // Key to key mapping
+            var mapping = {
+              keys: lhs,
+              type: 'keyToKey',
+              toKeys: rhs
+            };
+            if (ctx) { mapping.context = ctx; }
+            defaultKeymap.unshift(mapping);
+          }
+        }
+      },
+      unmap: function(lhs, ctx) {
+        if (lhs != ':' && lhs.charAt(0) == ':') {
+          // Ex to Ex or Ex to key mapping
+          if (ctx) { throw Error('Mode not supported for ex mappings'); }
+          var commandName = lhs.substring(1);
+          if (this.commandMap_[commandName] && this.commandMap_[commandName].user) {
+            delete this.commandMap_[commandName];
+            return;
+          }
+        } else {
+          // Key to Ex or key to key mapping
+          var keys = lhs;
+          for (var i = 0; i < defaultKeymap.length; i++) {
+            if (keys == defaultKeymap[i].keys
+                && defaultKeymap[i].context === ctx) {
+              defaultKeymap.splice(i, 1);
+              return;
+            }
+          }
+        }
+        throw Error('No such mapping.');
+      }
+    };
+
+    var exCommands = {
+      colorscheme: function(cm, params) {
+        if (!params.args || params.args.length < 1) {
+          showConfirm(cm, cm.getOption('theme'));
+          return;
+        }
+        cm.setOption('theme', params.args[0]);
+      },
+      map: function(cm, params, ctx) {
+        var mapArgs = params.args;
+        if (!mapArgs || mapArgs.length < 2) {
+          if (cm) {
+            showConfirm(cm, 'Invalid mapping: ' + params.input);
+          }
+          return;
+        }
+        exCommandDispatcher.map(mapArgs[0], mapArgs[1], ctx);
+      },
+      imap: function(cm, params) { this.map(cm, params, 'insert'); },
+      nmap: function(cm, params) { this.map(cm, params, 'normal'); },
+      vmap: function(cm, params) { this.map(cm, params, 'visual'); },
+      unmap: function(cm, params, ctx) {
+        var mapArgs = params.args;
+        if (!mapArgs || mapArgs.length < 1) {
+          if (cm) {
+            showConfirm(cm, 'No such mapping: ' + params.input);
+          }
+          return;
+        }
+        exCommandDispatcher.unmap(mapArgs[0], ctx);
+      },
+      move: function(cm, params) {
+        commandDispatcher.processCommand(cm, cm.state.vim, {
+            type: 'motion',
+            motion: 'moveToLineOrEdgeOfDocument',
+            motionArgs: { forward: false, explicitRepeat: true,
+              linewise: true },
+            repeatOverride: params.line+1});
+      },
+      set: function(cm, params) {
+        var setArgs = params.args;
+        // Options passed through to the setOption/getOption calls. May be passed in by the
+        // local/global versions of the set command
+        var setCfg = params.setCfg || {};
+        if (!setArgs || setArgs.length < 1) {
+          if (cm) {
+            showConfirm(cm, 'Invalid mapping: ' + params.input);
+          }
+          return;
+        }
+        var expr = setArgs[0].split('=');
+        var optionName = expr[0];
+        var value = expr[1];
+        var forceGet = false;
+
+        if (optionName.charAt(optionName.length - 1) == '?') {
+          // If post-fixed with ?, then the set is actually a get.
+          if (value) { throw Error('Trailing characters: ' + params.argString); }
+          optionName = optionName.substring(0, optionName.length - 1);
+          forceGet = true;
+        }
+        if (value === undefined && optionName.substring(0, 2) == 'no') {
+          // To set boolean options to false, the option name is prefixed with
+          // 'no'.
+          optionName = optionName.substring(2);
+          value = false;
+        }
+
+        var optionIsBoolean = options[optionName] && options[optionName].type == 'boolean';
+        if (optionIsBoolean && value == undefined) {
+          // Calling set with a boolean option sets it to true.
+          value = true;
+        }
+        // If no value is provided, then we assume this is a get.
+        if (!optionIsBoolean && value === undefined || forceGet) {
+          var oldValue = getOption(optionName, cm, setCfg);
+          if (oldValue === true || oldValue === false) {
+            showConfirm(cm, ' ' + (oldValue ? '' : 'no') + optionName);
+          } else {
+            showConfirm(cm, '  ' + optionName + '=' + oldValue);
+          }
+        } else {
+          setOption(optionName, value, cm, setCfg);
+        }
+      },
+      setlocal: function (cm, params) {
+        // setCfg is passed through to setOption
+        params.setCfg = {scope: 'local'};
+        this.set(cm, params);
+      },
+      setglobal: function (cm, params) {
+        // setCfg is passed through to setOption
+        params.setCfg = {scope: 'global'};
+        this.set(cm, params);
+      },
+      registers: function(cm, params) {
+        var regArgs = params.args;
+        var registers = vimGlobalState.registerController.registers;
+        var regInfo = '----------Registers----------

';
+        if (!regArgs) {
+          for (var registerName in registers) {
+            var text = registers[registerName].toString();
+            if (text.length) {
+              regInfo += '"' + registerName + '    ' + text + '
';
+            }
+          }
+        } else {
+          var registerName;
+          regArgs = regArgs.join('');
+          for (var i = 0; i < regArgs.length; i++) {
+            registerName = regArgs.charAt(i);
+            if (!vimGlobalState.registerController.isValidRegister(registerName)) {
+              continue;
+            }
+            var register = registers[registerName] || new Register();
+            regInfo += '"' + registerName + '    ' + register.toString() + '
';
+          }
+        }
+        showConfirm(cm, regInfo);
+      },
+      sort: function(cm, params) {
+        var reverse, ignoreCase, unique, number, pattern;
+        function parseArgs() {
+          if (params.argString) {
+            var args = new CodeMirror.StringStream(params.argString);
+            if (args.eat('!')) { reverse = true; }
+            if (args.eol()) { return; }
+            if (!args.eatSpace()) { return 'Invalid arguments'; }
+            var opts = args.match(/([dinuox]+)?\s*(\/.+\/)?\s*/);
+            if (!opts && !args.eol()) { return 'Invalid arguments'; }
+            if (opts[1]) {
+              ignoreCase = opts[1].indexOf('i') != -1;
+              unique = opts[1].indexOf('u') != -1;
+              var decimal = opts[1].indexOf('d') != -1 || opts[1].indexOf('n') != -1 && 1;
+              var hex = opts[1].indexOf('x') != -1 && 1;
+              var octal = opts[1].indexOf('o') != -1 && 1;
+              if (decimal + hex + octal > 1) { return 'Invalid arguments'; }
+              number = decimal && 'decimal' || hex && 'hex' || octal && 'octal';
+            }
+            if (opts[2]) {
+              pattern = new RegExp(opts[2].substr(1, opts[2].length - 2), ignoreCase ? 'i' : '');
+            }
+          }
+        }
+        var err = parseArgs();
+        if (err) {
+          showConfirm(cm, err + ': ' + params.argString);
+          return;
+        }
+        var lineStart = params.line || cm.firstLine();
+        var lineEnd = params.lineEnd || params.line || cm.lastLine();
+        if (lineStart == lineEnd) { return; }
+        var curStart = Pos(lineStart, 0);
+        var curEnd = Pos(lineEnd, lineLength(cm, lineEnd));
+        var text = cm.getRange(curStart, curEnd).split('\n');
+        var numberRegex = pattern ? pattern :
+           (number == 'decimal') ? /(-?)([\d]+)/ :
+           (number == 'hex') ? /(-?)(?:0x)?([0-9a-f]+)/i :
+           (number == 'octal') ? /([0-7]+)/ : null;
+        var radix = (number == 'decimal') ? 10 : (number == 'hex') ? 16 : (number == 'octal') ? 8 : null;
+        var numPart = [], textPart = [];
+        if (number || pattern) {
+          for (var i = 0; i < text.length; i++) {
+            var matchPart = pattern ? text[i].match(pattern) : null;
+            if (matchPart && matchPart[0] != '') {
+              numPart.push(matchPart);
+            } else if (!pattern && numberRegex.exec(text[i])) {
+              numPart.push(text[i]);
+            } else {
+              textPart.push(text[i]);
+            }
+          }
+        } else {
+          textPart = text;
+        }
+        function compareFn(a, b) {
+          if (reverse) { var tmp; tmp = a; a = b; b = tmp; }
+          if (ignoreCase) { a = a.toLowerCase(); b = b.toLowerCase(); }
+          var anum = number && numberRegex.exec(a);
+          var bnum = number && numberRegex.exec(b);
+          if (!anum) { return a < b ? -1 : 1; }
+          anum = parseInt((anum[1] + anum[2]).toLowerCase(), radix);
+          bnum = parseInt((bnum[1] + bnum[2]).toLowerCase(), radix);
+          return anum - bnum;
+        }
+        function comparePatternFn(a, b) {
+          if (reverse) { var tmp; tmp = a; a = b; b = tmp; }
+          if (ignoreCase) { a[0] = a[0].toLowerCase(); b[0] = b[0].toLowerCase(); }
+          return (a[0] < b[0]) ? -1 : 1;
+        }
+        numPart.sort(pattern ? comparePatternFn : compareFn);
+        if (pattern) {
+          for (var i = 0; i < numPart.length; i++) {
+            numPart[i] = numPart[i].input;
+          }
+        } else if (!number) { textPart.sort(compareFn); }
+        text = (!reverse) ? textPart.concat(numPart) : numPart.concat(textPart);
+        if (unique) { // Remove duplicate lines
+          var textOld = text;
+          var lastLine;
+          text = [];
+          for (var i = 0; i < textOld.length; i++) {
+            if (textOld[i] != lastLine) {
+              text.push(textOld[i]);
+            }
+            lastLine = textOld[i];
+          }
+        }
+        cm.replaceRange(text.join('\n'), curStart, curEnd);
+      },
+      global: function(cm, params) {
+        // a global command is of the form
+        // :[range]g/pattern/[cmd]
+        // argString holds the string /pattern/[cmd]
+        var argString = params.argString;
+        if (!argString) {
+          showConfirm(cm, 'Regular Expression missing from global');
+          return;
+        }
+        // range is specified here
+        var lineStart = (params.line !== undefined) ? params.line : cm.firstLine();
+        var lineEnd = params.lineEnd || params.line || cm.lastLine();
+        // get the tokens from argString
+        var tokens = splitBySlash(argString);
+        var regexPart = argString, cmd;
+        if (tokens.length) {
+          regexPart = tokens[0];
+          cmd = tokens.slice(1, tokens.length).join('/');
+        }
+        if (regexPart) {
+          // If regex part is empty, then use the previous query. Otherwise
+          // use the regex part as the new query.
+          try {
+           updateSearchQuery(cm, regexPart, true /** ignoreCase */,
+             true /** smartCase */);
+          } catch (e) {
+           showConfirm(cm, 'Invalid regex: ' + regexPart);
+           return;
+          }
+        }
+        // now that we have the regexPart, search for regex matches in the
+        // specified range of lines
+        var query = getSearchState(cm).getQuery();
+        var matchedLines = [], content = '';
+        for (var i = lineStart; i <= lineEnd; i++) {
+          var matched = query.test(cm.getLine(i));
+          if (matched) {
+            matchedLines.push(i+1);
+            content+= cm.getLine(i) + '
';
+          }
+        }
+        // if there is no [cmd], just display the list of matched lines
+        if (!cmd) {
+          showConfirm(cm, content);
+          return;
+        }
+        var index = 0;
+        var nextCommand = function() {
+          if (index < matchedLines.length) {
+            var command = matchedLines[index] + cmd;
+            exCommandDispatcher.processCommand(cm, command, {
+              callback: nextCommand
+            });
+          }
+          index++;
+        };
+        nextCommand();
+      },
+      substitute: function(cm, params) {
+        if (!cm.getSearchCursor) {
+          throw new Error('Search feature not available. Requires searchcursor.js or ' +
+              'any other getSearchCursor implementation.');
+        }
+        var argString = params.argString;
+        var tokens = argString ? splitBySlash(argString) : [];
+        var regexPart, replacePart = '', trailing, flagsPart, count;
+        var confirm = false; // Whether to confirm each replace.
+        var global = false; // True to replace all instances on a line, false to replace only 1.
+        if (tokens.length) {
+          regexPart = tokens[0];
+          replacePart = tokens[1];
+          if (replacePart !== undefined) {
+            if (getOption('pcre')) {
+              replacePart = unescapeRegexReplace(replacePart);
+            } else {
+              replacePart = translateRegexReplace(replacePart);
+            }
+            vimGlobalState.lastSubstituteReplacePart = replacePart;
+          }
+          trailing = tokens[2] ? tokens[2].split(' ') : [];
+        } else {
+          // either the argString is empty or its of the form ' hello/world'
+          // actually splitBySlash returns a list of tokens
+          // only if the string starts with a '/'
+          if (argString && argString.length) {
+            showConfirm(cm, 'Substitutions should be of the form ' +
+                ':s/pattern/replace/');
+            return;
+          }
+        }
+        // After the 3rd slash, we can have flags followed by a space followed
+        // by count.
+        if (trailing) {
+          flagsPart = trailing[0];
+          count = parseInt(trailing[1]);
+          if (flagsPart) {
+            if (flagsPart.indexOf('c') != -1) {
+              confirm = true;
+              flagsPart.replace('c', '');
+            }
+            if (flagsPart.indexOf('g') != -1) {
+              global = true;
+              flagsPart.replace('g', '');
+            }
+            regexPart = regexPart + '/' + flagsPart;
+          }
+        }
+        if (regexPart) {
+          // If regex part is empty, then use the previous query. Otherwise use
+          // the regex part as the new query.
+          try {
+            updateSearchQuery(cm, regexPart, true /** ignoreCase */,
+              true /** smartCase */);
+          } catch (e) {
+            showConfirm(cm, 'Invalid regex: ' + regexPart);
+            return;
+          }
+        }
+        replacePart = replacePart || vimGlobalState.lastSubstituteReplacePart;
+        if (replacePart === undefined) {
+          showConfirm(cm, 'No previous substitute regular expression');
+          return;
+        }
+        var state = getSearchState(cm);
+        var query = state.getQuery();
+        var lineStart = (params.line !== undefined) ? params.line : cm.getCursor().line;
+        var lineEnd = params.lineEnd || lineStart;
+        if (lineStart == cm.firstLine() && lineEnd == cm.lastLine()) {
+          lineEnd = Infinity;
+        }
+        if (count) {
+          lineStart = lineEnd;
+          lineEnd = lineStart + count - 1;
+        }
+        var startPos = clipCursorToContent(cm, Pos(lineStart, 0));
+        var cursor = cm.getSearchCursor(query, startPos);
+        doReplace(cm, confirm, global, lineStart, lineEnd, cursor, query, replacePart, params.callback);
+      },
+      redo: CodeMirror.commands.redo,
+      undo: CodeMirror.commands.undo,
+      write: function(cm) {
+        if (CodeMirror.commands.save) {
+          // If a save command is defined, call it.
+          CodeMirror.commands.save(cm);
+        } else if (cm.save) {
+          // Saves to text area if no save command is defined and cm.save() is available.
+          cm.save();
+        }
+      },
+      nohlsearch: function(cm) {
+        clearSearchHighlight(cm);
+      },
+      yank: function (cm) {
+        var cur = copyCursor(cm.getCursor());
+        var line = cur.line;
+        var lineText = cm.getLine(line);
+        vimGlobalState.registerController.pushText(
+          '0', 'yank', lineText, true, true);
+      },
+      delmarks: function(cm, params) {
+        if (!params.argString || !trim(params.argString)) {
+          showConfirm(cm, 'Argument required');
+          return;
+        }
+
+        var state = cm.state.vim;
+        var stream = new CodeMirror.StringStream(trim(params.argString));
+        while (!stream.eol()) {
+          stream.eatSpace();
+
+          // Record the streams position at the beginning of the loop for use
+          // in error messages.
+          var count = stream.pos;
+
+          if (!stream.match(/[a-zA-Z]/, false)) {
+            showConfirm(cm, 'Invalid argument: ' + params.argString.substring(count));
+            return;
+          }
+
+          var sym = stream.next();
+          // Check if this symbol is part of a range
+          if (stream.match('-', true)) {
+            // This symbol is part of a range.
+
+            // The range must terminate at an alphabetic character.
+            if (!stream.match(/[a-zA-Z]/, false)) {
+              showConfirm(cm, 'Invalid argument: ' + params.argString.substring(count));
+              return;
+            }
+
+            var startMark = sym;
+            var finishMark = stream.next();
+            // The range must terminate at an alphabetic character which
+            // shares the same case as the start of the range.
+            if (isLowerCase(startMark) && isLowerCase(finishMark) ||
+                isUpperCase(startMark) && isUpperCase(finishMark)) {
+              var start = startMark.charCodeAt(0);
+              var finish = finishMark.charCodeAt(0);
+              if (start >= finish) {
+                showConfirm(cm, 'Invalid argument: ' + params.argString.substring(count));
+                return;
+              }
+
+              // Because marks are always ASCII values, and we have
+              // determined that they are the same case, we can use
+              // their char codes to iterate through the defined range.
+              for (var j = 0; j <= finish - start; j++) {
+                var mark = String.fromCharCode(start + j);
+                delete state.marks[mark];
+              }
+            } else {
+              showConfirm(cm, 'Invalid argument: ' + startMark + '-');
+              return;
+            }
+          } else {
+            // This symbol is a valid mark, and is not part of a range.
+            delete state.marks[sym];
+          }
+        }
+      }
+    };
+
+    var exCommandDispatcher = new ExCommandDispatcher();
+
+    /**
+    * @param {CodeMirror} cm CodeMirror instance we are in.
+    * @param {boolean} confirm Whether to confirm each replace.
+    * @param {Cursor} lineStart Line to start replacing from.
+    * @param {Cursor} lineEnd Line to stop replacing at.
+    * @param {RegExp} query Query for performing matches with.
+    * @param {string} replaceWith Text to replace matches with. May contain $1,
+    *     $2, etc for replacing captured groups using Javascript replace.
+    * @param {function()} callback A callback for when the replace is done.
+    */
+    function doReplace(cm, confirm, global, lineStart, lineEnd, searchCursor, query,
+        replaceWith, callback) {
+      // Set up all the functions.
+      cm.state.vim.exMode = true;
+      var done = false;
+      var lastPos = searchCursor.from();
+      function replaceAll() {
+        cm.operation(function() {
+          while (!done) {
+            replace();
+            next();
+          }
+          stop();
+        });
+      }
+      function replace() {
+        var text = cm.getRange(searchCursor.from(), searchCursor.to());
+        var newText = text.replace(query, replaceWith);
+        searchCursor.replace(newText);
+      }
+      function next() {
+        // The below only loops to skip over multiple occurrences on the same
+        // line when 'global' is not true.
+        while(searchCursor.findNext() &&
+              isInRange(searchCursor.from(), lineStart, lineEnd)) {
+          if (!global && lastPos && searchCursor.from().line == lastPos.line) {
+            continue;
+          }
+          cm.scrollIntoView(searchCursor.from(), 30);
+          cm.setSelection(searchCursor.from(), searchCursor.to());
+          lastPos = searchCursor.from();
+          done = false;
+          return;
+        }
+        done = true;
+      }
+      function stop(close) {
+        if (close) { close(); }
+        cm.focus();
+        if (lastPos) {
+          cm.setCursor(lastPos);
+          var vim = cm.state.vim;
+          vim.exMode = false;
+          vim.lastHPos = vim.lastHSPos = lastPos.ch;
+        }
+        if (callback) { callback(); }
+      }
+      function onPromptKeyDown(e, _value, close) {
+        // Swallow all keys.
+        CodeMirror.e_stop(e);
+        var keyName = CodeMirror.keyName(e);
+        switch (keyName) {
+          case 'Y':
+            replace(); next(); break;
+          case 'N':
+            next(); break;
+          case 'A':
+            // replaceAll contains a call to close of its own. We don't want it
+            // to fire too early or multiple times.
+            var savedCallback = callback;
+            callback = undefined;
+            cm.operation(replaceAll);
+            callback = savedCallback;
+            break;
+          case 'L':
+            replace();
+            // fall through and exit.
+          case 'Q':
+          case 'Esc':
+          case 'Ctrl-C':
+          case 'Ctrl-[':
+            stop(close);
+            break;
+        }
+        if (done) { stop(close); }
+        return true;
+      }
+
+      // Actually do replace.
+      next();
+      if (done) {
+        showConfirm(cm, 'No matches for ' + query.source);
+        return;
+      }
+      if (!confirm) {
+        replaceAll();
+        if (callback) { callback(); };
+        return;
+      }
+      showPrompt(cm, {
+        prefix: 'replace with ' + replaceWith + ' (y/n/a/q/l)',
+        onKeyDown: onPromptKeyDown
+      });
+    }
+
+    CodeMirror.keyMap.vim = {
+      attach: attachVimMap,
+      detach: detachVimMap,
+      call: cmKey
+    };
+
+    function exitInsertMode(cm) {
+      var vim = cm.state.vim;
+      var macroModeState = vimGlobalState.macroModeState;
+      var insertModeChangeRegister = vimGlobalState.registerController.getRegister('.');
+      var isPlaying = macroModeState.isPlaying;
+      var lastChange = macroModeState.lastInsertModeChanges;
+      // In case of visual block, the insertModeChanges are not saved as a
+      // single word, so we convert them to a single word
+      // so as to update the ". register as expected in real vim.
+      var text = [];
+      if (!isPlaying) {
+        var selLength = lastChange.inVisualBlock ? vim.lastSelection.visualBlock.height : 1;
+        var changes = lastChange.changes;
+        var text = [];
+        var i = 0;
+        // In case of multiple selections in blockwise visual,
+        // the inserted text, for example: 'foo', is stored as
+        // 'f', 'f', InsertModeKey 'o', 'o', 'o', 'o'. (if you have a block with 2 lines).
+        // We push the contents of the changes array as per the following:
+        // 1. In case of InsertModeKey, just increment by 1.
+        // 2. In case of a character, jump by selLength (2 in the example).
+        while (i < changes.length) {
+          // This loop will convert 'ffoooo' to 'foo'.
+          text.push(changes[i]);
+          if (changes[i] instanceof InsertModeKey) {
+             i++;
+          } else {
+             i+= selLength;
+          }
+        }
+        lastChange.changes = text;
+        cm.off('change', onChange);
+        CodeMirror.off(cm.getInputField(), 'keydown', onKeyEventTargetKeyDown);
+      }
+      if (!isPlaying && vim.insertModeRepeat > 1) {
+        // Perform insert mode repeat for commands like 3,a and 3,o.
+        repeatLastEdit(cm, vim, vim.insertModeRepeat - 1,
+            true /** repeatForInsert */);
+        vim.lastEditInputState.repeatOverride = vim.insertModeRepeat;
+      }
+      delete vim.insertModeRepeat;
+      vim.insertMode = false;
+      cm.setCursor(cm.getCursor().line, cm.getCursor().ch-1);
+      cm.setOption('keyMap', 'vim');
+      cm.setOption('disableInput', true);
+      cm.toggleOverwrite(false); // exit replace mode if we were in it.
+      // update the ". register before exiting insert mode
+      insertModeChangeRegister.setText(lastChange.changes.join(''));
+      CodeMirror.signal(cm, "vim-mode-change", {mode: "normal"});
+      if (macroModeState.isRecording) {
+        logInsertModeChange(macroModeState);
+      }
+    }
+
+    function _mapCommand(command) {
+      defaultKeymap.unshift(command);
+    }
+
+    function mapCommand(keys, type, name, args, extra) {
+      var command = {keys: keys, type: type};
+      command[type] = name;
+      command[type + "Args"] = args;
+      for (var key in extra)
+        command[key] = extra[key];
+      _mapCommand(command);
+    }
+
+    // The timeout in milliseconds for the two-character ESC keymap should be
+    // adjusted according to your typing speed to prevent false positives.
+    defineOption('insertModeEscKeysTimeout', 200, 'number');
+
+    CodeMirror.keyMap['vim-insert'] = {
+      // TODO: override navigation keys so that Esc will cancel automatic
+      // indentation from o, O, i_
+      fallthrough: ['default'],
+      attach: attachVimMap,
+      detach: detachVimMap,
+      call: cmKey
+    };
+
+    CodeMirror.keyMap['vim-replace'] = {
+      'Backspace': 'goCharLeft',
+      fallthrough: ['vim-insert'],
+      attach: attachVimMap,
+      detach: detachVimMap,
+      call: cmKey
+    };
+
+    function executeMacroRegister(cm, vim, macroModeState, registerName) {
+      var register = vimGlobalState.registerController.getRegister(registerName);
+      if (registerName == ':') {
+        // Read-only register containing last Ex command.
+        if (register.keyBuffer[0]) {
+          exCommandDispatcher.processCommand(cm, register.keyBuffer[0]);
+        }
+        macroModeState.isPlaying = false;
+        return;
+      }
+      var keyBuffer = register.keyBuffer;
+      var imc = 0;
+      macroModeState.isPlaying = true;
+      macroModeState.replaySearchQueries = register.searchQueries.slice(0);
+      for (var i = 0; i < keyBuffer.length; i++) {
+        var text = keyBuffer[i];
+        var match, key;
+        while (text) {
+          // Pull off one command key, which is either a single character
+          // or a special sequence wrapped in '<' and '>', e.g. ''.
+          match = (/<\w+-.+?>|<\w+>|./).exec(text);
+          key = match[0];
+          text = text.substring(match.index + key.length);
+          CodeMirror.Vim.handleKey(cm, key, 'macro');
+          if (vim.insertMode) {
+            var changes = register.insertModeChanges[imc++].changes;
+            vimGlobalState.macroModeState.lastInsertModeChanges.changes =
+                changes;
+            repeatInsertModeChanges(cm, changes, 1);
+            exitInsertMode(cm);
+          }
+        }
+      };
+      macroModeState.isPlaying = false;
+    }
+
+    function logKey(macroModeState, key) {
+      if (macroModeState.isPlaying) { return; }
+      var registerName = macroModeState.latestRegister;
+      var register = vimGlobalState.registerController.getRegister(registerName);
+      if (register) {
+        register.pushText(key);
+      }
+    }
+
+    function logInsertModeChange(macroModeState) {
+      if (macroModeState.isPlaying) { return; }
+      var registerName = macroModeState.latestRegister;
+      var register = vimGlobalState.registerController.getRegister(registerName);
+      if (register && register.pushInsertModeChanges) {
+        register.pushInsertModeChanges(macroModeState.lastInsertModeChanges);
+      }
+    }
+
+    function logSearchQuery(macroModeState, query) {
+      if (macroModeState.isPlaying) { return; }
+      var registerName = macroModeState.latestRegister;
+      var register = vimGlobalState.registerController.getRegister(registerName);
+      if (register && register.pushSearchQuery) {
+        register.pushSearchQuery(query);
+      }
+    }
+
+    /**
+     * Listens for changes made in insert mode.
+     * Should only be active in insert mode.
+     */
+    function onChange(_cm, changeObj) {
+      var macroModeState = vimGlobalState.macroModeState;
+      var lastChange = macroModeState.lastInsertModeChanges;
+      if (!macroModeState.isPlaying) {
+        while(changeObj) {
+          lastChange.expectCursorActivityForChange = true;
+          if (changeObj.origin == '+input' || changeObj.origin == 'paste'
+              || changeObj.origin === undefined /* only in testing */) {
+            var text = changeObj.text.join('\n');
+            if (lastChange.maybeReset) {
+              lastChange.changes = [];
+              lastChange.maybeReset = false;
+            }
+            lastChange.changes.push(text);
+          }
+          // Change objects may be chained with next.
+          changeObj = changeObj.next;
+        }
+      }
+    }
+
+    /**
+    * Listens for any kind of cursor activity on CodeMirror.
+    */
+    function onCursorActivity(cm) {
+      var vim = cm.state.vim;
+      if (vim.insertMode) {
+        // Tracking cursor activity in insert mode (for macro support).
+        var macroModeState = vimGlobalState.macroModeState;
+        if (macroModeState.isPlaying) { return; }
+        var lastChange = macroModeState.lastInsertModeChanges;
+        if (lastChange.expectCursorActivityForChange) {
+          lastChange.expectCursorActivityForChange = false;
+        } else {
+          // Cursor moved outside the context of an edit. Reset the change.
+          lastChange.maybeReset = true;
+        }
+      } else if (!cm.curOp.isVimOp) {
+        handleExternalSelection(cm, vim);
+      }
+      if (vim.visualMode) {
+        updateFakeCursor(cm);
+      }
+    }
+    function updateFakeCursor(cm) {
+      var vim = cm.state.vim;
+      var from = clipCursorToContent(cm, copyCursor(vim.sel.head));
+      var to = offsetCursor(from, 0, 1);
+      if (vim.fakeCursor) {
+        vim.fakeCursor.clear();
+      }
+      vim.fakeCursor = cm.markText(from, to, {className: 'cm-animate-fat-cursor'});
+    }
+    function handleExternalSelection(cm, vim) {
+      var anchor = cm.getCursor('anchor');
+      var head = cm.getCursor('head');
+      // Enter or exit visual mode to match mouse selection.
+      if (vim.visualMode && !cm.somethingSelected()) {
+        exitVisualMode(cm, false);
+      } else if (!vim.visualMode && !vim.insertMode && cm.somethingSelected()) {
+        vim.visualMode = true;
+        vim.visualLine = false;
+        CodeMirror.signal(cm, "vim-mode-change", {mode: "visual"});
+      }
+      if (vim.visualMode) {
+        // Bind CodeMirror selection model to vim selection model.
+        // Mouse selections are considered visual characterwise.
+        var headOffset = !cursorIsBefore(head, anchor) ? -1 : 0;
+        var anchorOffset = cursorIsBefore(head, anchor) ? -1 : 0;
+        head = offsetCursor(head, 0, headOffset);
+        anchor = offsetCursor(anchor, 0, anchorOffset);
+        vim.sel = {
+          anchor: anchor,
+          head: head
+        };
+        updateMark(cm, vim, '<', cursorMin(head, anchor));
+        updateMark(cm, vim, '>', cursorMax(head, anchor));
+      } else if (!vim.insertMode) {
+        // Reset lastHPos if selection was modified by something outside of vim mode e.g. by mouse.
+        vim.lastHPos = cm.getCursor().ch;
+      }
+    }
+
+    /** Wrapper for special keys pressed in insert mode */
+    function InsertModeKey(keyName) {
+      this.keyName = keyName;
+    }
+
+    /**
+    * Handles raw key down events from the text area.
+    * - Should only be active in insert mode.
+    * - For recording deletes in insert mode.
+    */
+    function onKeyEventTargetKeyDown(e) {
+      var macroModeState = vimGlobalState.macroModeState;
+      var lastChange = macroModeState.lastInsertModeChanges;
+      var keyName = CodeMirror.keyName(e);
+      if (!keyName) { return; }
+      function onKeyFound() {
+        if (lastChange.maybeReset) {
+          lastChange.changes = [];
+          lastChange.maybeReset = false;
+        }
+        lastChange.changes.push(new InsertModeKey(keyName));
+        return true;
+      }
+      if (keyName.indexOf('Delete') != -1 || keyName.indexOf('Backspace') != -1) {
+        CodeMirror.lookupKey(keyName, 'vim-insert', onKeyFound);
+      }
+    }
+
+    /**
+     * Repeats the last edit, which includes exactly 1 command and at most 1
+     * insert. Operator and motion commands are read from lastEditInputState,
+     * while action commands are read from lastEditActionCommand.
+     *
+     * If repeatForInsert is true, then the function was called by
+     * exitInsertMode to repeat the insert mode changes the user just made. The
+     * corresponding enterInsertMode call was made with a count.
+     */
+    function repeatLastEdit(cm, vim, repeat, repeatForInsert) {
+      var macroModeState = vimGlobalState.macroModeState;
+      macroModeState.isPlaying = true;
+      var isAction = !!vim.lastEditActionCommand;
+      var cachedInputState = vim.inputState;
+      function repeatCommand() {
+        if (isAction) {
+          commandDispatcher.processAction(cm, vim, vim.lastEditActionCommand);
+        } else {
+          commandDispatcher.evalInput(cm, vim);
+        }
+      }
+      function repeatInsert(repeat) {
+        if (macroModeState.lastInsertModeChanges.changes.length > 0) {
+          // For some reason, repeat cw in desktop VIM does not repeat
+          // insert mode changes. Will conform to that behavior.
+          repeat = !vim.lastEditActionCommand ? 1 : repeat;
+          var changeObject = macroModeState.lastInsertModeChanges;
+          repeatInsertModeChanges(cm, changeObject.changes, repeat);
+        }
+      }
+      vim.inputState = vim.lastEditInputState;
+      if (isAction && vim.lastEditActionCommand.interlaceInsertRepeat) {
+        // o and O repeat have to be interlaced with insert repeats so that the
+        // insertions appear on separate lines instead of the last line.
+        for (var i = 0; i < repeat; i++) {
+          repeatCommand();
+          repeatInsert(1);
+        }
+      } else {
+        if (!repeatForInsert) {
+          // Hack to get the cursor to end up at the right place. If I is
+          // repeated in insert mode repeat, cursor will be 1 insert
+          // change set left of where it should be.
+          repeatCommand();
+        }
+        repeatInsert(repeat);
+      }
+      vim.inputState = cachedInputState;
+      if (vim.insertMode && !repeatForInsert) {
+        // Don't exit insert mode twice. If repeatForInsert is set, then we
+        // were called by an exitInsertMode call lower on the stack.
+        exitInsertMode(cm);
+      }
+      macroModeState.isPlaying = false;
+    };
+
+    function repeatInsertModeChanges(cm, changes, repeat) {
+      function keyHandler(binding) {
+        if (typeof binding == 'string') {
+          CodeMirror.commands[binding](cm);
+        } else {
+          binding(cm);
+        }
+        return true;
+      }
+      var head = cm.getCursor('head');
+      var inVisualBlock = vimGlobalState.macroModeState.lastInsertModeChanges.inVisualBlock;
+      if (inVisualBlock) {
+        // Set up block selection again for repeating the changes.
+        var vim = cm.state.vim;
+        var lastSel = vim.lastSelection;
+        var offset = getOffset(lastSel.anchor, lastSel.head);
+        selectForInsert(cm, head, offset.line + 1);
+        repeat = cm.listSelections().length;
+        cm.setCursor(head);
+      }
+      for (var i = 0; i < repeat; i++) {
+        if (inVisualBlock) {
+          cm.setCursor(offsetCursor(head, i, 0));
+        }
+        for (var j = 0; j < changes.length; j++) {
+          var change = changes[j];
+          if (change instanceof InsertModeKey) {
+            CodeMirror.lookupKey(change.keyName, 'vim-insert', keyHandler);
+          } else {
+            var cur = cm.getCursor();
+            cm.replaceRange(change, cur, cur);
+          }
+        }
+      }
+      if (inVisualBlock) {
+        cm.setCursor(offsetCursor(head, 0, 1));
+      }
+    }
+
+    resetVimGlobalState();
+    return vimApi;
+  };
+  // Initialize Vim and make it available as an API.
+  CodeMirror.Vim = Vim();
+});
diff --git a/public/codemirror/lib/codemirror.css b/public/codemirror/lib/codemirror.css
new file mode 100644
index 000000000..b962b3837
--- /dev/null
+++ b/public/codemirror/lib/codemirror.css
@@ -0,0 +1,340 @@
+/* BASICS */
+
+.CodeMirror {
+  /* Set height, width, borders, and global font properties here */
+  font-family: monospace;
+  height: 300px;
+  color: black;
+}
+
+/* PADDING */
+
+.CodeMirror-lines {
+  padding: 4px 0; /* Vertical padding around content */
+}
+.CodeMirror pre {
+  padding: 0 4px; /* Horizontal padding of content */
+}
+
+.CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
+  background-color: white; /* The little square between H and V scrollbars */
+}
+
+/* GUTTER */
+
+.CodeMirror-gutters {
+  border-right: 1px solid #ddd;
+  background-color: #f7f7f7;
+  white-space: nowrap;
+}
+.CodeMirror-linenumbers {}
+.CodeMirror-linenumber {
+  padding: 0 3px 0 5px;
+  min-width: 20px;
+  text-align: right;
+  color: #999;
+  white-space: nowrap;
+}
+
+.CodeMirror-guttermarker { color: black; }
+.CodeMirror-guttermarker-subtle { color: #999; }
+
+/* CURSOR */
+
+.CodeMirror-cursor {
+  border-left: 1px solid black;
+  border-right: none;
+  width: 0;
+}
+/* Shown when moving in bi-directional text */
+.CodeMirror div.CodeMirror-secondarycursor {
+  border-left: 1px solid silver;
+}
+.cm-fat-cursor .CodeMirror-cursor {
+  width: auto;
+  border: 0 !important;
+  background: #7e7;
+}
+.cm-fat-cursor div.CodeMirror-cursors {
+  z-index: 1;
+}
+
+.cm-animate-fat-cursor {
+  width: auto;
+  border: 0;
+  -webkit-animation: blink 1.06s steps(1) infinite;
+  -moz-animation: blink 1.06s steps(1) infinite;
+  animation: blink 1.06s steps(1) infinite;
+  background-color: #7e7;
+}
+@-moz-keyframes blink {
+  0% {}
+  50% { background-color: transparent; }
+  100% {}
+}
+@-webkit-keyframes blink {
+  0% {}
+  50% { background-color: transparent; }
+  100% {}
+}
+@keyframes blink {
+  0% {}
+  50% { background-color: transparent; }
+  100% {}
+}
+
+/* Can style cursor different in overwrite (non-insert) mode */
+.CodeMirror-overwrite .CodeMirror-cursor {}
+
+.cm-tab { display: inline-block; text-decoration: inherit; }
+
+.CodeMirror-rulers {
+  position: absolute;
+  left: 0; right: 0; top: -50px; bottom: -20px;
+  overflow: hidden;
+}
+.CodeMirror-ruler {
+  border-left: 1px solid #ccc;
+  top: 0; bottom: 0;
+  position: absolute;
+}
+
+/* DEFAULT THEME */
+
+.cm-s-default .cm-header {color: blue;}
+.cm-s-default .cm-quote {color: #090;}
+.cm-negative {color: #d44;}
+.cm-positive {color: #292;}
+.cm-header, .cm-strong {font-weight: bold;}
+.cm-em {font-style: italic;}
+.cm-link {text-decoration: underline;}
+.cm-strikethrough {text-decoration: line-through;}
+
+.cm-s-default .cm-keyword {color: #708;}
+.cm-s-default .cm-atom {color: #219;}
+.cm-s-default .cm-number {color: #164;}
+.cm-s-default .cm-def {color: #00f;}
+.cm-s-default .cm-variable,
+.cm-s-default .cm-punctuation,
+.cm-s-default .cm-property,
+.cm-s-default .cm-operator {}
+.cm-s-default .cm-variable-2 {color: #05a;}
+.cm-s-default .cm-variable-3 {color: #085;}
+.cm-s-default .cm-comment {color: #a50;}
+.cm-s-default .cm-string {color: #a11;}
+.cm-s-default .cm-string-2 {color: #f50;}
+.cm-s-default .cm-meta {color: #555;}
+.cm-s-default .cm-qualifier {color: #555;}
+.cm-s-default .cm-builtin {color: #30a;}
+.cm-s-default .cm-bracket {color: #997;}
+.cm-s-default .cm-tag {color: #170;}
+.cm-s-default .cm-attribute {color: #00c;}
+.cm-s-default .cm-hr {color: #999;}
+.cm-s-default .cm-link {color: #00c;}
+
+.cm-s-default .cm-error {color: #f00;}
+.cm-invalidchar {color: #f00;}
+
+.CodeMirror-composing { border-bottom: 2px solid; }
+
+/* Default styles for common addons */
+
+div.CodeMirror span.CodeMirror-matchingbracket {color: #0f0;}
+div.CodeMirror span.CodeMirror-nonmatchingbracket {color: #f22;}
+.CodeMirror-matchingtag { background: rgba(255, 150, 0, .3); }
+.CodeMirror-activeline-background {background: #e8f2ff;}
+
+/* STOP */
+
+/* The rest of this file contains styles related to the mechanics of
+   the editor. You probably shouldn't touch them. */
+
+.CodeMirror {
+  position: relative;
+  overflow: hidden;
+  background: white;
+}
+
+.CodeMirror-scroll {
+  overflow: scroll !important; /* Things will break if this is overridden */
+  /* 30px is the magic margin used to hide the element's real scrollbars */
+  /* See overflow: hidden in .CodeMirror */
+  margin-bottom: -30px; margin-right: -30px;
+  padding-bottom: 30px;
+  height: 100%;
+  outline: none; /* Prevent dragging from highlighting the element */
+  position: relative;
+}
+.CodeMirror-sizer {
+  position: relative;
+  border-right: 30px solid transparent;
+}
+
+/* The fake, visible scrollbars. Used to force redraw during scrolling
+   before actual scrolling happens, thus preventing shaking and
+   flickering artifacts. */
+.CodeMirror-vscrollbar, .CodeMirror-hscrollbar, .CodeMirror-scrollbar-filler, .CodeMirror-gutter-filler {
+  position: absolute;
+  z-index: 6;
+  display: none;
+}
+.CodeMirror-vscrollbar {
+  right: 0; top: 0;
+  overflow-x: hidden;
+  overflow-y: scroll;
+}
+.CodeMirror-hscrollbar {
+  bottom: 0; left: 0;
+  overflow-y: hidden;
+  overflow-x: scroll;
+}
+.CodeMirror-scrollbar-filler {
+  right: 0; bottom: 0;
+}
+.CodeMirror-gutter-filler {
+  left: 0; bottom: 0;
+}
+
+.CodeMirror-gutters {
+  position: absolute; left: 0; top: 0;
+  min-height: 100%;
+  z-index: 3;
+}
+.CodeMirror-gutter {
+  white-space: normal;
+  height: 100%;
+  display: inline-block;
+  vertical-align: top;
+  margin-bottom: -30px;
+}
+.CodeMirror-gutter-wrapper {
+  position: absolute;
+  z-index: 4;
+  background: none !important;
+  border: none !important;
+}
+.CodeMirror-gutter-background {
+  position: absolute;
+  top: 0; bottom: 0;
+  z-index: 4;
+}
+.CodeMirror-gutter-elt {
+  position: absolute;
+  cursor: default;
+  z-index: 4;
+}
+.CodeMirror-gutter-wrapper ::selection { background-color: transparent }
+.CodeMirror-gutter-wrapper ::-moz-selection { background-color: transparent }
+
+.CodeMirror-lines {
+  cursor: text;
+  min-height: 1px; /* prevents collapsing before first draw */
+}
+.CodeMirror pre {
+  /* Reset some styles that the rest of the page might have set */
+  -moz-border-radius: 0; -webkit-border-radius: 0; border-radius: 0;
+  border-width: 0;
+  background: transparent;
+  font-family: inherit;
+  font-size: inherit;
+  margin: 0;
+  white-space: pre;
+  word-wrap: normal;
+  line-height: inherit;
+  color: inherit;
+  z-index: 2;
+  position: relative;
+  overflow: visible;
+  -webkit-tap-highlight-color: transparent;
+  -webkit-font-variant-ligatures: contextual;
+  font-variant-ligatures: contextual;
+}
+.CodeMirror-wrap pre {
+  word-wrap: break-word;
+  white-space: pre-wrap;
+  word-break: normal;
+}
+
+.CodeMirror-linebackground {
+  position: absolute;
+  left: 0; right: 0; top: 0; bottom: 0;
+  z-index: 0;
+}
+
+.CodeMirror-linewidget {
+  position: relative;
+  z-index: 2;
+  overflow: auto;
+}
+
+.CodeMirror-widget {}
+
+.CodeMirror-rtl pre { direction: rtl; }
+
+.CodeMirror-code {
+  outline: none;
+}
+
+/* Force content-box sizing for the elements where we expect it */
+.CodeMirror-scroll,
+.CodeMirror-sizer,
+.CodeMirror-gutter,
+.CodeMirror-gutters,
+.CodeMirror-linenumber {
+  -moz-box-sizing: content-box;
+  box-sizing: content-box;
+}
+
+.CodeMirror-measure {
+  position: absolute;
+  width: 100%;
+  height: 0;
+  overflow: hidden;
+  visibility: hidden;
+}
+
+.CodeMirror-cursor {
+  position: absolute;
+  pointer-events: none;
+}
+.CodeMirror-measure pre { position: static; }
+
+div.CodeMirror-cursors {
+  visibility: hidden;
+  position: relative;
+  z-index: 3;
+}
+div.CodeMirror-dragcursors {
+  visibility: visible;
+}
+
+.CodeMirror-focused div.CodeMirror-cursors {
+  visibility: visible;
+}
+
+.CodeMirror-selected { background: #d9d9d9; }
+.CodeMirror-focused .CodeMirror-selected { background: #d7d4f0; }
+.CodeMirror-crosshair { cursor: crosshair; }
+.CodeMirror-line::selection, .CodeMirror-line > span::selection, .CodeMirror-line > span > span::selection { background: #d7d4f0; }
+.CodeMirror-line::-moz-selection, .CodeMirror-line > span::-moz-selection, .CodeMirror-line > span > span::-moz-selection { background: #d7d4f0; }
+
+.cm-searching {
+  background: #ffa;
+  background: rgba(255, 255, 0, .4);
+}
+
+/* Used to force a border model for a node */
+.cm-force-border { padding-right: .1px; }
+
+@media print {
+  /* Hide the cursor when printing */
+  .CodeMirror div.CodeMirror-cursors {
+    visibility: hidden;
+  }
+}
+
+/* See issue #2901 */
+.cm-tab-wrap-hack:after { content: ''; }
+
+/* Help users use markselection to safely style text background */
+span.CodeMirror-selectedtext { background: none; }
diff --git a/public/codemirror/lib/codemirror.js b/public/codemirror/lib/codemirror.js
new file mode 100644
index 000000000..73e034ebb
--- /dev/null
+++ b/public/codemirror/lib/codemirror.js
@@ -0,0 +1,9304 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// This is CodeMirror (http://codemirror.net), a code editor
+// implemented in JavaScript on top of the browser's DOM.
+//
+// You can find some technical background for some of the code below
+// at http://marijnhaverbeke.nl/blog/#cm-internals .
+
+(function (global, factory) {
+  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
+  typeof define === 'function' && define.amd ? define(factory) :
+  (global.CodeMirror = factory());
+}(this, (function () { 'use strict';
+
+// Kludges for bugs and behavior differences that can't be feature
+// detected are enabled based on userAgent etc sniffing.
+var userAgent = navigator.userAgent
+var platform = navigator.platform
+
+var gecko = /gecko\/\d/i.test(userAgent)
+var ie_upto10 = /MSIE \d/.test(userAgent)
+var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent)
+var edge = /Edge\/(\d+)/.exec(userAgent)
+var ie = ie_upto10 || ie_11up || edge
+var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1])
+var webkit = !edge && /WebKit\//.test(userAgent)
+var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent)
+var chrome = !edge && /Chrome\//.test(userAgent)
+var presto = /Opera\//.test(userAgent)
+var safari = /Apple Computer/.test(navigator.vendor)
+var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent)
+var phantom = /PhantomJS/.test(userAgent)
+
+var ios = !edge && /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent)
+var android = /Android/.test(userAgent)
+// This is woefully incomplete. Suggestions for alternative methods welcome.
+var mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent)
+var mac = ios || /Mac/.test(platform)
+var chromeOS = /\bCrOS\b/.test(userAgent)
+var windows = /win/i.test(platform)
+
+var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/)
+if (presto_version) { presto_version = Number(presto_version[1]) }
+if (presto_version && presto_version >= 15) { presto = false; webkit = true }
+// Some browsers use the wrong event properties to signal cmd/ctrl on OS X
+var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11))
+var captureRightClick = gecko || (ie && ie_version >= 9)
+
+function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") }
+
+var rmClass = function(node, cls) {
+  var current = node.className
+  var match = classTest(cls).exec(current)
+  if (match) {
+    var after = current.slice(match.index + match[0].length)
+    node.className = current.slice(0, match.index) + (after ? match[1] + after : "")
+  }
+}
+
+function removeChildren(e) {
+  for (var count = e.childNodes.length; count > 0; --count)
+    { e.removeChild(e.firstChild) }
+  return e
+}
+
+function removeChildrenAndAdd(parent, e) {
+  return removeChildren(parent).appendChild(e)
+}
+
+function elt(tag, content, className, style) {
+  var e = document.createElement(tag)
+  if (className) { e.className = className }
+  if (style) { e.style.cssText = style }
+  if (typeof content == "string") { e.appendChild(document.createTextNode(content)) }
+  else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]) } }
+  return e
+}
+// wrapper for elt, which removes the elt from the accessibility tree
+function eltP(tag, content, className, style) {
+  var e = elt(tag, content, className, style)
+  e.setAttribute("role", "presentation")
+  return e
+}
+
+var range
+if (document.createRange) { range = function(node, start, end, endNode) {
+  var r = document.createRange()
+  r.setEnd(endNode || node, end)
+  r.setStart(node, start)
+  return r
+} }
+else { range = function(node, start, end) {
+  var r = document.body.createTextRange()
+  try { r.moveToElementText(node.parentNode) }
+  catch(e) { return r }
+  r.collapse(true)
+  r.moveEnd("character", end)
+  r.moveStart("character", start)
+  return r
+} }
+
+function contains(parent, child) {
+  if (child.nodeType == 3) // Android browser always returns false when child is a textnode
+    { child = child.parentNode }
+  if (parent.contains)
+    { return parent.contains(child) }
+  do {
+    if (child.nodeType == 11) { child = child.host }
+    if (child == parent) { return true }
+  } while (child = child.parentNode)
+}
+
+function activeElt() {
+  // IE and Edge may throw an "Unspecified Error" when accessing document.activeElement.
+  // IE < 10 will throw when accessed while the page is loading or in an iframe.
+  // IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable.
+  var activeElement
+  try {
+    activeElement = document.activeElement
+  } catch(e) {
+    activeElement = document.body || null
+  }
+  while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement)
+    { activeElement = activeElement.shadowRoot.activeElement }
+  return activeElement
+}
+
+function addClass(node, cls) {
+  var current = node.className
+  if (!classTest(cls).test(current)) { node.className += (current ? " " : "") + cls }
+}
+function joinClasses(a, b) {
+  var as = a.split(" ")
+  for (var i = 0; i < as.length; i++)
+    { if (as[i] && !classTest(as[i]).test(b)) { b += " " + as[i] } }
+  return b
+}
+
+var selectInput = function(node) { node.select() }
+if (ios) // Mobile Safari apparently has a bug where select() is broken.
+  { selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length } }
+else if (ie) // Suppress mysterious IE10 errors
+  { selectInput = function(node) { try { node.select() } catch(_e) {} } }
+
+function bind(f) {
+  var args = Array.prototype.slice.call(arguments, 1)
+  return function(){return f.apply(null, args)}
+}
+
+function copyObj(obj, target, overwrite) {
+  if (!target) { target = {} }
+  for (var prop in obj)
+    { if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
+      { target[prop] = obj[prop] } }
+  return target
+}
+
+// Counts the column offset in a string, taking tabs into account.
+// Used mostly to find indentation.
+function countColumn(string, end, tabSize, startIndex, startValue) {
+  if (end == null) {
+    end = string.search(/[^\s\u00a0]/)
+    if (end == -1) { end = string.length }
+  }
+  for (var i = startIndex || 0, n = startValue || 0;;) {
+    var nextTab = string.indexOf("\t", i)
+    if (nextTab < 0 || nextTab >= end)
+      { return n + (end - i) }
+    n += nextTab - i
+    n += tabSize - (n % tabSize)
+    i = nextTab + 1
+  }
+}
+
+var Delayed = function() {this.id = null};
+Delayed.prototype.set = function (ms, f) {
+  clearTimeout(this.id)
+  this.id = setTimeout(f, ms)
+};
+
+function indexOf(array, elt) {
+  for (var i = 0; i < array.length; ++i)
+    { if (array[i] == elt) { return i } }
+  return -1
+}
+
+// Number of pixels added to scroller and sizer to hide scrollbar
+var scrollerGap = 30
+
+// Returned or thrown by various protocols to signal 'I'm not
+// handling this'.
+var Pass = {toString: function(){return "CodeMirror.Pass"}}
+
+// Reused option objects for setSelection & friends
+var sel_dontScroll = {scroll: false};
+var sel_mouse = {origin: "*mouse"};
+var sel_move = {origin: "+move"};
+// The inverse of countColumn -- find the offset that corresponds to
+// a particular column.
+function findColumn(string, goal, tabSize) {
+  for (var pos = 0, col = 0;;) {
+    var nextTab = string.indexOf("\t", pos)
+    if (nextTab == -1) { nextTab = string.length }
+    var skipped = nextTab - pos
+    if (nextTab == string.length || col + skipped >= goal)
+      { return pos + Math.min(skipped, goal - col) }
+    col += nextTab - pos
+    col += tabSize - (col % tabSize)
+    pos = nextTab + 1
+    if (col >= goal) { return pos }
+  }
+}
+
+var spaceStrs = [""]
+function spaceStr(n) {
+  while (spaceStrs.length <= n)
+    { spaceStrs.push(lst(spaceStrs) + " ") }
+  return spaceStrs[n]
+}
+
+function lst(arr) { return arr[arr.length-1] }
+
+function map(array, f) {
+  var out = []
+  for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i) }
+  return out
+}
+
+function insertSorted(array, value, score) {
+  var pos = 0, priority = score(value)
+  while (pos < array.length && score(array[pos]) <= priority) { pos++ }
+  array.splice(pos, 0, value)
+}
+
+function nothing() {}
+
+function createObj(base, props) {
+  var inst
+  if (Object.create) {
+    inst = Object.create(base)
+  } else {
+    nothing.prototype = base
+    inst = new nothing()
+  }
+  if (props) { copyObj(props, inst) }
+  return inst
+}
+
+var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/
+function isWordCharBasic(ch) {
+  return /\w/.test(ch) || ch > "\x80" &&
+    (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch))
+}
+function isWordChar(ch, helper) {
+  if (!helper) { return isWordCharBasic(ch) }
+  if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) { return true }
+  return helper.test(ch)
+}
+
+function isEmpty(obj) {
+  for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } }
+  return true
+}
+
+// Extending unicode characters. A series of a non-extending char +
+// any number of extending chars is treated as a single unit as far
+// as editing and measuring is concerned. This is not fully correct,
+// since some scripts/fonts/browsers also treat other configurations
+// of code points as a group.
+var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/
+function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) }
+
+// Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range.
+function skipExtendingChars(str, pos, dir) {
+  while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir }
+  return pos
+}
+
+// Returns the value from the range [`from`; `to`] that satisfies
+// `pred` and is closest to `from`. Assumes that at least `to` satisfies `pred`.
+function findFirst(pred, from, to) {
+  for (;;) {
+    if (Math.abs(from - to) <= 1) { return pred(from) ? from : to }
+    var mid = Math.floor((from + to) / 2)
+    if (pred(mid)) { to = mid }
+    else { from = mid }
+  }
+}
+
+// The display handles the DOM integration, both for input reading
+// and content drawing. It holds references to DOM nodes and
+// display-related state.
+
+function Display(place, doc, input) {
+  var d = this
+  this.input = input
+
+  // Covers bottom-right square when both scrollbars are present.
+  d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler")
+  d.scrollbarFiller.setAttribute("cm-not-content", "true")
+  // Covers bottom of gutter when coverGutterNextToScrollbar is on
+  // and h scrollbar is present.
+  d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler")
+  d.gutterFiller.setAttribute("cm-not-content", "true")
+  // Will contain the actual code, positioned to cover the viewport.
+  d.lineDiv = eltP("div", null, "CodeMirror-code")
+  // Elements are added to these to represent selection and cursors.
+  d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1")
+  d.cursorDiv = elt("div", null, "CodeMirror-cursors")
+  // A visibility: hidden element used to find the size of things.
+  d.measure = elt("div", null, "CodeMirror-measure")
+  // When lines outside of the viewport are measured, they are drawn in this.
+  d.lineMeasure = elt("div", null, "CodeMirror-measure")
+  // Wraps everything that needs to exist inside the vertically-padded coordinate system
+  d.lineSpace = eltP("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
+                    null, "position: relative; outline: none")
+  var lines = eltP("div", [d.lineSpace], "CodeMirror-lines")
+  // Moved around its parent to cover visible view.
+  d.mover = elt("div", [lines], null, "position: relative")
+  // Set to the height of the document, allowing scrolling.
+  d.sizer = elt("div", [d.mover], "CodeMirror-sizer")
+  d.sizerWidth = null
+  // Behavior of elts with overflow: auto and padding is
+  // inconsistent across browsers. This is used to ensure the
+  // scrollable area is big enough.
+  d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;")
+  // Will contain the gutters, if any.
+  d.gutters = elt("div", null, "CodeMirror-gutters")
+  d.lineGutter = null
+  // Actual scrollable element.
+  d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll")
+  d.scroller.setAttribute("tabIndex", "-1")
+  // The element in which the editor lives.
+  d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror")
+
+  // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
+  if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0 }
+  if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true }
+
+  if (place) {
+    if (place.appendChild) { place.appendChild(d.wrapper) }
+    else { place(d.wrapper) }
+  }
+
+  // Current rendered range (may be bigger than the view window).
+  d.viewFrom = d.viewTo = doc.first
+  d.reportedViewFrom = d.reportedViewTo = doc.first
+  // Information about the rendered lines.
+  d.view = []
+  d.renderedView = null
+  // Holds info about a single rendered line when it was rendered
+  // for measurement, while not in view.
+  d.externalMeasured = null
+  // Empty space (in pixels) above the view
+  d.viewOffset = 0
+  d.lastWrapHeight = d.lastWrapWidth = 0
+  d.updateLineNumbers = null
+
+  d.nativeBarWidth = d.barHeight = d.barWidth = 0
+  d.scrollbarsClipped = false
+
+  // Used to only resize the line number gutter when necessary (when
+  // the amount of lines crosses a boundary that makes its width change)
+  d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null
+  // Set to true when a non-horizontal-scrolling line widget is
+  // added. As an optimization, line widget aligning is skipped when
+  // this is false.
+  d.alignWidgets = false
+
+  d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null
+
+  // Tracks the maximum line length so that the horizontal scrollbar
+  // can be kept static when scrolling.
+  d.maxLine = null
+  d.maxLineLength = 0
+  d.maxLineChanged = false
+
+  // Used for measuring wheel scrolling granularity
+  d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null
+
+  // True when shift is held down.
+  d.shift = false
+
+  // Used to track whether anything happened since the context menu
+  // was opened.
+  d.selForContextMenu = null
+
+  d.activeTouch = null
+
+  input.init(d)
+}
+
+// Find the line object corresponding to the given line number.
+function getLine(doc, n) {
+  n -= doc.first
+  if (n < 0 || n >= doc.size) { throw new Error("There is no line " + (n + doc.first) + " in the document.") }
+  var chunk = doc
+  while (!chunk.lines) {
+    for (var i = 0;; ++i) {
+      var child = chunk.children[i], sz = child.chunkSize()
+      if (n < sz) { chunk = child; break }
+      n -= sz
+    }
+  }
+  return chunk.lines[n]
+}
+
+// Get the part of a document between two positions, as an array of
+// strings.
+function getBetween(doc, start, end) {
+  var out = [], n = start.line
+  doc.iter(start.line, end.line + 1, function (line) {
+    var text = line.text
+    if (n == end.line) { text = text.slice(0, end.ch) }
+    if (n == start.line) { text = text.slice(start.ch) }
+    out.push(text)
+    ++n
+  })
+  return out
+}
+// Get the lines between from and to, as array of strings.
+function getLines(doc, from, to) {
+  var out = []
+  doc.iter(from, to, function (line) { out.push(line.text) }) // iter aborts when callback returns truthy value
+  return out
+}
+
+// Update the height of a line, propagating the height change
+// upwards to parent nodes.
+function updateLineHeight(line, height) {
+  var diff = height - line.height
+  if (diff) { for (var n = line; n; n = n.parent) { n.height += diff } }
+}
+
+// Given a line object, find its line number by walking up through
+// its parent links.
+function lineNo(line) {
+  if (line.parent == null) { return null }
+  var cur = line.parent, no = indexOf(cur.lines, line)
+  for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
+    for (var i = 0;; ++i) {
+      if (chunk.children[i] == cur) { break }
+      no += chunk.children[i].chunkSize()
+    }
+  }
+  return no + cur.first
+}
+
+// Find the line at the given vertical position, using the height
+// information in the document tree.
+function lineAtHeight(chunk, h) {
+  var n = chunk.first
+  outer: do {
+    for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) {
+      var child = chunk.children[i$1], ch = child.height
+      if (h < ch) { chunk = child; continue outer }
+      h -= ch
+      n += child.chunkSize()
+    }
+    return n
+  } while (!chunk.lines)
+  var i = 0
+  for (; i < chunk.lines.length; ++i) {
+    var line = chunk.lines[i], lh = line.height
+    if (h < lh) { break }
+    h -= lh
+  }
+  return n + i
+}
+
+function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size}
+
+function lineNumberFor(options, i) {
+  return String(options.lineNumberFormatter(i + options.firstLineNumber))
+}
+
+// A Pos instance represents a position within the text.
+function Pos(line, ch, sticky) {
+  if ( sticky === void 0 ) sticky = null;
+
+  if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) }
+  this.line = line
+  this.ch = ch
+  this.sticky = sticky
+}
+
+// Compare two positions, return 0 if they are the same, a negative
+// number when a is less, and a positive number otherwise.
+function cmp(a, b) { return a.line - b.line || a.ch - b.ch }
+
+function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 }
+
+function copyPos(x) {return Pos(x.line, x.ch)}
+function maxPos(a, b) { return cmp(a, b) < 0 ? b : a }
+function minPos(a, b) { return cmp(a, b) < 0 ? a : b }
+
+// Most of the external API clips given positions to make sure they
+// actually exist within the document.
+function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))}
+function clipPos(doc, pos) {
+  if (pos.line < doc.first) { return Pos(doc.first, 0) }
+  var last = doc.first + doc.size - 1
+  if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) }
+  return clipToLen(pos, getLine(doc, pos.line).text.length)
+}
+function clipToLen(pos, linelen) {
+  var ch = pos.ch
+  if (ch == null || ch > linelen) { return Pos(pos.line, linelen) }
+  else if (ch < 0) { return Pos(pos.line, 0) }
+  else { return pos }
+}
+function clipPosArray(doc, array) {
+  var out = []
+  for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]) }
+  return out
+}
+
+// Optimize some code when these features are not used.
+var sawReadOnlySpans = false;
+var sawCollapsedSpans = false;
+function seeReadOnlySpans() {
+  sawReadOnlySpans = true
+}
+
+function seeCollapsedSpans() {
+  sawCollapsedSpans = true
+}
+
+// TEXTMARKER SPANS
+
+function MarkedSpan(marker, from, to) {
+  this.marker = marker
+  this.from = from; this.to = to
+}
+
+// Search an array of spans for a span matching the given marker.
+function getMarkedSpanFor(spans, marker) {
+  if (spans) { for (var i = 0; i < spans.length; ++i) {
+    var span = spans[i]
+    if (span.marker == marker) { return span }
+  } }
+}
+// Remove a span from an array, returning undefined if no spans are
+// left (we don't store arrays for lines without spans).
+function removeMarkedSpan(spans, span) {
+  var r
+  for (var i = 0; i < spans.length; ++i)
+    { if (spans[i] != span) { (r || (r = [])).push(spans[i]) } }
+  return r
+}
+// Add a span to a line.
+function addMarkedSpan(line, span) {
+  line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span]
+  span.marker.attachLine(line)
+}
+
+// Used for the algorithm that adjusts markers for a change in the
+// document. These functions cut an array of spans at a given
+// character position, returning an array of remaining chunks (or
+// undefined if nothing remains).
+function markedSpansBefore(old, startCh, isInsert) {
+  var nw
+  if (old) { for (var i = 0; i < old.length; ++i) {
+    var span = old[i], marker = span.marker
+    var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh)
+    if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
+      var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh)
+      ;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to))
+    }
+  } }
+  return nw
+}
+function markedSpansAfter(old, endCh, isInsert) {
+  var nw
+  if (old) { for (var i = 0; i < old.length; ++i) {
+    var span = old[i], marker = span.marker
+    var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh)
+    if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
+      var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh)
+      ;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
+                                            span.to == null ? null : span.to - endCh))
+    }
+  } }
+  return nw
+}
+
+// Given a change object, compute the new set of marker spans that
+// cover the line in which the change took place. Removes spans
+// entirely within the change, reconnects spans belonging to the
+// same marker that appear on both sides of the change, and cuts off
+// spans partially within the change. Returns an array of span
+// arrays with one element for each line in (after) the change.
+function stretchSpansOverChange(doc, change) {
+  if (change.full) { return null }
+  var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans
+  var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans
+  if (!oldFirst && !oldLast) { return null }
+
+  var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0
+  // Get the spans that 'stick out' on both sides
+  var first = markedSpansBefore(oldFirst, startCh, isInsert)
+  var last = markedSpansAfter(oldLast, endCh, isInsert)
+
+  // Next, merge those two ends
+  var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0)
+  if (first) {
+    // Fix up .to properties of first
+    for (var i = 0; i < first.length; ++i) {
+      var span = first[i]
+      if (span.to == null) {
+        var found = getMarkedSpanFor(last, span.marker)
+        if (!found) { span.to = startCh }
+        else if (sameLine) { span.to = found.to == null ? null : found.to + offset }
+      }
+    }
+  }
+  if (last) {
+    // Fix up .from in last (or move them into first in case of sameLine)
+    for (var i$1 = 0; i$1 < last.length; ++i$1) {
+      var span$1 = last[i$1]
+      if (span$1.to != null) { span$1.to += offset }
+      if (span$1.from == null) {
+        var found$1 = getMarkedSpanFor(first, span$1.marker)
+        if (!found$1) {
+          span$1.from = offset
+          if (sameLine) { (first || (first = [])).push(span$1) }
+        }
+      } else {
+        span$1.from += offset
+        if (sameLine) { (first || (first = [])).push(span$1) }
+      }
+    }
+  }
+  // Make sure we didn't create any zero-length spans
+  if (first) { first = clearEmptySpans(first) }
+  if (last && last != first) { last = clearEmptySpans(last) }
+
+  var newMarkers = [first]
+  if (!sameLine) {
+    // Fill gap with whole-line-spans
+    var gap = change.text.length - 2, gapMarkers
+    if (gap > 0 && first)
+      { for (var i$2 = 0; i$2 < first.length; ++i$2)
+        { if (first[i$2].to == null)
+          { (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)) } } }
+    for (var i$3 = 0; i$3 < gap; ++i$3)
+      { newMarkers.push(gapMarkers) }
+    newMarkers.push(last)
+  }
+  return newMarkers
+}
+
+// Remove spans that are empty and don't have a clearWhenEmpty
+// option of false.
+function clearEmptySpans(spans) {
+  for (var i = 0; i < spans.length; ++i) {
+    var span = spans[i]
+    if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
+      { spans.splice(i--, 1) }
+  }
+  if (!spans.length) { return null }
+  return spans
+}
+
+// Used to 'clip' out readOnly ranges when making a change.
+function removeReadOnlyRanges(doc, from, to) {
+  var markers = null
+  doc.iter(from.line, to.line + 1, function (line) {
+    if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
+      var mark = line.markedSpans[i].marker
+      if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
+        { (markers || (markers = [])).push(mark) }
+    } }
+  })
+  if (!markers) { return null }
+  var parts = [{from: from, to: to}]
+  for (var i = 0; i < markers.length; ++i) {
+    var mk = markers[i], m = mk.find(0)
+    for (var j = 0; j < parts.length; ++j) {
+      var p = parts[j]
+      if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue }
+      var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to)
+      if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
+        { newParts.push({from: p.from, to: m.from}) }
+      if (dto > 0 || !mk.inclusiveRight && !dto)
+        { newParts.push({from: m.to, to: p.to}) }
+      parts.splice.apply(parts, newParts)
+      j += newParts.length - 3
+    }
+  }
+  return parts
+}
+
+// Connect or disconnect spans from a line.
+function detachMarkedSpans(line) {
+  var spans = line.markedSpans
+  if (!spans) { return }
+  for (var i = 0; i < spans.length; ++i)
+    { spans[i].marker.detachLine(line) }
+  line.markedSpans = null
+}
+function attachMarkedSpans(line, spans) {
+  if (!spans) { return }
+  for (var i = 0; i < spans.length; ++i)
+    { spans[i].marker.attachLine(line) }
+  line.markedSpans = spans
+}
+
+// Helpers used when computing which overlapping collapsed span
+// counts as the larger one.
+function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 }
+function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 }
+
+// Returns a number indicating which of two overlapping collapsed
+// spans is larger (and thus includes the other). Falls back to
+// comparing ids when the spans cover exactly the same range.
+function compareCollapsedMarkers(a, b) {
+  var lenDiff = a.lines.length - b.lines.length
+  if (lenDiff != 0) { return lenDiff }
+  var aPos = a.find(), bPos = b.find()
+  var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b)
+  if (fromCmp) { return -fromCmp }
+  var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b)
+  if (toCmp) { return toCmp }
+  return b.id - a.id
+}
+
+// Find out whether a line ends or starts in a collapsed span. If
+// so, return the marker for that span.
+function collapsedSpanAtSide(line, start) {
+  var sps = sawCollapsedSpans && line.markedSpans, found
+  if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
+    sp = sps[i]
+    if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
+        (!found || compareCollapsedMarkers(found, sp.marker) < 0))
+      { found = sp.marker }
+  } }
+  return found
+}
+function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) }
+function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) }
+
+// Test whether there exists a collapsed span that partially
+// overlaps (covers the start or end, but not both) of a new span.
+// Such overlap is not allowed.
+function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
+  var line = getLine(doc, lineNo)
+  var sps = sawCollapsedSpans && line.markedSpans
+  if (sps) { for (var i = 0; i < sps.length; ++i) {
+    var sp = sps[i]
+    if (!sp.marker.collapsed) { continue }
+    var found = sp.marker.find(0)
+    var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker)
+    var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker)
+    if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue }
+    if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||
+        fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))
+      { return true }
+  } }
+}
+
+// A visual line is a line as drawn on the screen. Folding, for
+// example, can cause multiple logical lines to appear on the same
+// visual line. This finds the start of the visual line that the
+// given line is part of (usually that is the line itself).
+function visualLine(line) {
+  var merged
+  while (merged = collapsedSpanAtStart(line))
+    { line = merged.find(-1, true).line }
+  return line
+}
+
+function visualLineEnd(line) {
+  var merged
+  while (merged = collapsedSpanAtEnd(line))
+    { line = merged.find(1, true).line }
+  return line
+}
+
+// Returns an array of logical lines that continue the visual line
+// started by the argument, or undefined if there are no such lines.
+function visualLineContinued(line) {
+  var merged, lines
+  while (merged = collapsedSpanAtEnd(line)) {
+    line = merged.find(1, true).line
+    ;(lines || (lines = [])).push(line)
+  }
+  return lines
+}
+
+// Get the line number of the start of the visual line that the
+// given line number is part of.
+function visualLineNo(doc, lineN) {
+  var line = getLine(doc, lineN), vis = visualLine(line)
+  if (line == vis) { return lineN }
+  return lineNo(vis)
+}
+
+// Get the line number of the start of the next visual line after
+// the given line.
+function visualLineEndNo(doc, lineN) {
+  if (lineN > doc.lastLine()) { return lineN }
+  var line = getLine(doc, lineN), merged
+  if (!lineIsHidden(doc, line)) { return lineN }
+  while (merged = collapsedSpanAtEnd(line))
+    { line = merged.find(1, true).line }
+  return lineNo(line) + 1
+}
+
+// Compute whether a line is hidden. Lines count as hidden when they
+// are part of a visual line that starts with another line, or when
+// they are entirely covered by collapsed, non-widget span.
+function lineIsHidden(doc, line) {
+  var sps = sawCollapsedSpans && line.markedSpans
+  if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) {
+    sp = sps[i]
+    if (!sp.marker.collapsed) { continue }
+    if (sp.from == null) { return true }
+    if (sp.marker.widgetNode) { continue }
+    if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
+      { return true }
+  } }
+}
+function lineIsHiddenInner(doc, line, span) {
+  if (span.to == null) {
+    var end = span.marker.find(1, true)
+    return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker))
+  }
+  if (span.marker.inclusiveRight && span.to == line.text.length)
+    { return true }
+  for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) {
+    sp = line.markedSpans[i]
+    if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
+        (sp.to == null || sp.to != span.from) &&
+        (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
+        lineIsHiddenInner(doc, line, sp)) { return true }
+  }
+}
+
+// Find the height above the given line.
+function heightAtLine(lineObj) {
+  lineObj = visualLine(lineObj)
+
+  var h = 0, chunk = lineObj.parent
+  for (var i = 0; i < chunk.lines.length; ++i) {
+    var line = chunk.lines[i]
+    if (line == lineObj) { break }
+    else { h += line.height }
+  }
+  for (var p = chunk.parent; p; chunk = p, p = chunk.parent) {
+    for (var i$1 = 0; i$1 < p.children.length; ++i$1) {
+      var cur = p.children[i$1]
+      if (cur == chunk) { break }
+      else { h += cur.height }
+    }
+  }
+  return h
+}
+
+// Compute the character length of a line, taking into account
+// collapsed ranges (see markText) that might hide parts, and join
+// other lines onto it.
+function lineLength(line) {
+  if (line.height == 0) { return 0 }
+  var len = line.text.length, merged, cur = line
+  while (merged = collapsedSpanAtStart(cur)) {
+    var found = merged.find(0, true)
+    cur = found.from.line
+    len += found.from.ch - found.to.ch
+  }
+  cur = line
+  while (merged = collapsedSpanAtEnd(cur)) {
+    var found$1 = merged.find(0, true)
+    len -= cur.text.length - found$1.from.ch
+    cur = found$1.to.line
+    len += cur.text.length - found$1.to.ch
+  }
+  return len
+}
+
+// Find the longest line in the document.
+function findMaxLine(cm) {
+  var d = cm.display, doc = cm.doc
+  d.maxLine = getLine(doc, doc.first)
+  d.maxLineLength = lineLength(d.maxLine)
+  d.maxLineChanged = true
+  doc.iter(function (line) {
+    var len = lineLength(line)
+    if (len > d.maxLineLength) {
+      d.maxLineLength = len
+      d.maxLine = line
+    }
+  })
+}
+
+// BIDI HELPERS
+
+function iterateBidiSections(order, from, to, f) {
+  if (!order) { return f(from, to, "ltr") }
+  var found = false
+  for (var i = 0; i < order.length; ++i) {
+    var part = order[i]
+    if (part.from < to && part.to > from || from == to && part.to == from) {
+      f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr")
+      found = true
+    }
+  }
+  if (!found) { f(from, to, "ltr") }
+}
+
+var bidiOther = null
+function getBidiPartAt(order, ch, sticky) {
+  var found
+  bidiOther = null
+  for (var i = 0; i < order.length; ++i) {
+    var cur = order[i]
+    if (cur.from < ch && cur.to > ch) { return i }
+    if (cur.to == ch) {
+      if (cur.from != cur.to && sticky == "before") { found = i }
+      else { bidiOther = i }
+    }
+    if (cur.from == ch) {
+      if (cur.from != cur.to && sticky != "before") { found = i }
+      else { bidiOther = i }
+    }
+  }
+  return found != null ? found : bidiOther
+}
+
+// Bidirectional ordering algorithm
+// See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
+// that this (partially) implements.
+
+// One-char codes used for character types:
+// L (L):   Left-to-Right
+// R (R):   Right-to-Left
+// r (AL):  Right-to-Left Arabic
+// 1 (EN):  European Number
+// + (ES):  European Number Separator
+// % (ET):  European Number Terminator
+// n (AN):  Arabic Number
+// , (CS):  Common Number Separator
+// m (NSM): Non-Spacing Mark
+// b (BN):  Boundary Neutral
+// s (B):   Paragraph Separator
+// t (S):   Segment Separator
+// w (WS):  Whitespace
+// N (ON):  Other Neutrals
+
+// Returns null if characters are ordered as they appear
+// (left-to-right), or an array of sections ({from, to, level}
+// objects) in the order in which they occur visually.
+var bidiOrdering = (function() {
+  // Character types for codepoints 0 to 0xff
+  var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN"
+  // Character types for codepoints 0x600 to 0x6f9
+  var arabicTypes = "nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111"
+  function charType(code) {
+    if (code <= 0xf7) { return lowTypes.charAt(code) }
+    else if (0x590 <= code && code <= 0x5f4) { return "R" }
+    else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) }
+    else if (0x6ee <= code && code <= 0x8ac) { return "r" }
+    else if (0x2000 <= code && code <= 0x200b) { return "w" }
+    else if (code == 0x200c) { return "b" }
+    else { return "L" }
+  }
+
+  var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/
+  var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/
+
+  function BidiSpan(level, from, to) {
+    this.level = level
+    this.from = from; this.to = to
+  }
+
+  return function(str, direction) {
+    var outerType = direction == "ltr" ? "L" : "R"
+
+    if (str.length == 0 || direction == "ltr" && !bidiRE.test(str)) { return false }
+    var len = str.length, types = []
+    for (var i = 0; i < len; ++i)
+      { types.push(charType(str.charCodeAt(i))) }
+
+    // W1. Examine each non-spacing mark (NSM) in the level run, and
+    // change the type of the NSM to the type of the previous
+    // character. If the NSM is at the start of the level run, it will
+    // get the type of sor.
+    for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) {
+      var type = types[i$1]
+      if (type == "m") { types[i$1] = prev }
+      else { prev = type }
+    }
+
+    // W2. Search backwards from each instance of a European number
+    // until the first strong type (R, L, AL, or sor) is found. If an
+    // AL is found, change the type of the European number to Arabic
+    // number.
+    // W3. Change all ALs to R.
+    for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) {
+      var type$1 = types[i$2]
+      if (type$1 == "1" && cur == "r") { types[i$2] = "n" }
+      else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == "r") { types[i$2] = "R" } }
+    }
+
+    // W4. A single European separator between two European numbers
+    // changes to a European number. A single common separator between
+    // two numbers of the same type changes to that type.
+    for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) {
+      var type$2 = types[i$3]
+      if (type$2 == "+" && prev$1 == "1" && types[i$3+1] == "1") { types[i$3] = "1" }
+      else if (type$2 == "," && prev$1 == types[i$3+1] &&
+               (prev$1 == "1" || prev$1 == "n")) { types[i$3] = prev$1 }
+      prev$1 = type$2
+    }
+
+    // W5. A sequence of European terminators adjacent to European
+    // numbers changes to all European numbers.
+    // W6. Otherwise, separators and terminators change to Other
+    // Neutral.
+    for (var i$4 = 0; i$4 < len; ++i$4) {
+      var type$3 = types[i$4]
+      if (type$3 == ",") { types[i$4] = "N" }
+      else if (type$3 == "%") {
+        var end = (void 0)
+        for (end = i$4 + 1; end < len && types[end] == "%"; ++end) {}
+        var replace = (i$4 && types[i$4-1] == "!") || (end < len && types[end] == "1") ? "1" : "N"
+        for (var j = i$4; j < end; ++j) { types[j] = replace }
+        i$4 = end - 1
+      }
+    }
+
+    // W7. Search backwards from each instance of a European number
+    // until the first strong type (R, L, or sor) is found. If an L is
+    // found, then change the type of the European number to L.
+    for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) {
+      var type$4 = types[i$5]
+      if (cur$1 == "L" && type$4 == "1") { types[i$5] = "L" }
+      else if (isStrong.test(type$4)) { cur$1 = type$4 }
+    }
+
+    // N1. A sequence of neutrals takes the direction of the
+    // surrounding strong text if the text on both sides has the same
+    // direction. European and Arabic numbers act as if they were R in
+    // terms of their influence on neutrals. Start-of-level-run (sor)
+    // and end-of-level-run (eor) are used at level run boundaries.
+    // N2. Any remaining neutrals take the embedding direction.
+    for (var i$6 = 0; i$6 < len; ++i$6) {
+      if (isNeutral.test(types[i$6])) {
+        var end$1 = (void 0)
+        for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {}
+        var before = (i$6 ? types[i$6-1] : outerType) == "L"
+        var after = (end$1 < len ? types[end$1] : outerType) == "L"
+        var replace$1 = before == after ? (before ? "L" : "R") : outerType
+        for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1 }
+        i$6 = end$1 - 1
+      }
+    }
+
+    // Here we depart from the documented algorithm, in order to avoid
+    // building up an actual levels array. Since there are only three
+    // levels (0, 1, 2) in an implementation that doesn't take
+    // explicit embedding into account, we can build up the order on
+    // the fly, without following the level-based algorithm.
+    var order = [], m
+    for (var i$7 = 0; i$7 < len;) {
+      if (countsAsLeft.test(types[i$7])) {
+        var start = i$7
+        for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {}
+        order.push(new BidiSpan(0, start, i$7))
+      } else {
+        var pos = i$7, at = order.length
+        for (++i$7; i$7 < len && types[i$7] != "L"; ++i$7) {}
+        for (var j$2 = pos; j$2 < i$7;) {
+          if (countsAsNum.test(types[j$2])) {
+            if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)) }
+            var nstart = j$2
+            for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {}
+            order.splice(at, 0, new BidiSpan(2, nstart, j$2))
+            pos = j$2
+          } else { ++j$2 }
+        }
+        if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)) }
+      }
+    }
+    if (order[0].level == 1 && (m = str.match(/^\s+/))) {
+      order[0].from = m[0].length
+      order.unshift(new BidiSpan(0, 0, m[0].length))
+    }
+    if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
+      lst(order).to -= m[0].length
+      order.push(new BidiSpan(0, len - m[0].length, len))
+    }
+
+    return direction == "rtl" ? order.reverse() : order
+  }
+})()
+
+// Get the bidi ordering for the given line (and cache it). Returns
+// false for lines that are fully left-to-right, and an array of
+// BidiSpan objects otherwise.
+function getOrder(line, direction) {
+  var order = line.order
+  if (order == null) { order = line.order = bidiOrdering(line.text, direction) }
+  return order
+}
+
+function moveCharLogically(line, ch, dir) {
+  var target = skipExtendingChars(line.text, ch + dir, dir)
+  return target < 0 || target > line.text.length ? null : target
+}
+
+function moveLogically(line, start, dir) {
+  var ch = moveCharLogically(line, start.ch, dir)
+  return ch == null ? null : new Pos(start.line, ch, dir < 0 ? "after" : "before")
+}
+
+function endOfLine(visually, cm, lineObj, lineNo, dir) {
+  if (visually) {
+    var order = getOrder(lineObj, cm.doc.direction)
+    if (order) {
+      var part = dir < 0 ? lst(order) : order[0]
+      var moveInStorageOrder = (dir < 0) == (part.level == 1)
+      var sticky = moveInStorageOrder ? "after" : "before"
+      var ch
+      // With a wrapped rtl chunk (possibly spanning multiple bidi parts),
+      // it could be that the last bidi part is not on the last visual line,
+      // since visual lines contain content order-consecutive chunks.
+      // Thus, in rtl, we are looking for the first (content-order) character
+      // in the rtl chunk that is on the last line (that is, the same line
+      // as the last (content-order) character).
+      if (part.level > 0) {
+        var prep = prepareMeasureForLine(cm, lineObj)
+        ch = dir < 0 ? lineObj.text.length - 1 : 0
+        var targetTop = measureCharPrepared(cm, prep, ch).top
+        ch = findFirst(function (ch) { return measureCharPrepared(cm, prep, ch).top == targetTop; }, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch)
+        if (sticky == "before") { ch = moveCharLogically(lineObj, ch, 1, true) }
+      } else { ch = dir < 0 ? part.to : part.from }
+      return new Pos(lineNo, ch, sticky)
+    }
+  }
+  return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? "before" : "after")
+}
+
+function moveVisually(cm, line, start, dir) {
+  var bidi = getOrder(line, cm.doc.direction)
+  if (!bidi) { return moveLogically(line, start, dir) }
+  if (start.ch >= line.text.length) {
+    start.ch = line.text.length
+    start.sticky = "before"
+  } else if (start.ch <= 0) {
+    start.ch = 0
+    start.sticky = "after"
+  }
+  var partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos]
+  if (cm.doc.direction == "ltr" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) {
+    // Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines,
+    // nothing interesting happens.
+    return moveLogically(line, start, dir)
+  }
+
+  var mv = function (pos, dir) { return moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir); }
+  var prep
+  var getWrappedLineExtent = function (ch) {
+    if (!cm.options.lineWrapping) { return {begin: 0, end: line.text.length} }
+    prep = prep || prepareMeasureForLine(cm, line)
+    return wrappedLineExtentChar(cm, line, prep, ch)
+  }
+  var wrappedLineExtent = getWrappedLineExtent(start.sticky == "before" ? mv(start, -1) : start.ch)
+
+  if (cm.doc.direction == "rtl" || part.level == 1) {
+    var moveInStorageOrder = (part.level == 1) == (dir < 0)
+    var ch = mv(start, moveInStorageOrder ? 1 : -1)
+    if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) {
+      // Case 2: We move within an rtl part or in an rtl editor on the same visual line
+      var sticky = moveInStorageOrder ? "before" : "after"
+      return new Pos(start.line, ch, sticky)
+    }
+  }
+
+  // Case 3: Could not move within this bidi part in this visual line, so leave
+  // the current bidi part
+
+  var searchInVisualLine = function (partPos, dir, wrappedLineExtent) {
+    var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder
+      ? new Pos(start.line, mv(ch, 1), "before")
+      : new Pos(start.line, ch, "after"); }
+
+    for (; partPos >= 0 && partPos < bidi.length; partPos += dir) {
+      var part = bidi[partPos]
+      var moveInStorageOrder = (dir > 0) == (part.level != 1)
+      var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1)
+      if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) }
+      ch = moveInStorageOrder ? part.from : mv(part.to, -1)
+      if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) }
+    }
+  }
+
+  // Case 3a: Look for other bidi parts on the same visual line
+  var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent)
+  if (res) { return res }
+
+  // Case 3b: Look for other bidi parts on the next visual line
+  var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1)
+  if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) {
+    res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh))
+    if (res) { return res }
+  }
+
+  // Case 4: Nowhere to move
+  return null
+}
+
+// EVENT HANDLING
+
+// Lightweight event framework. on/off also work on DOM nodes,
+// registering native DOM handlers.
+
+var noHandlers = []
+
+var on = function(emitter, type, f) {
+  if (emitter.addEventListener) {
+    emitter.addEventListener(type, f, false)
+  } else if (emitter.attachEvent) {
+    emitter.attachEvent("on" + type, f)
+  } else {
+    var map = emitter._handlers || (emitter._handlers = {})
+    map[type] = (map[type] || noHandlers).concat(f)
+  }
+}
+
+function getHandlers(emitter, type) {
+  return emitter._handlers && emitter._handlers[type] || noHandlers
+}
+
+function off(emitter, type, f) {
+  if (emitter.removeEventListener) {
+    emitter.removeEventListener(type, f, false)
+  } else if (emitter.detachEvent) {
+    emitter.detachEvent("on" + type, f)
+  } else {
+    var map = emitter._handlers, arr = map && map[type]
+    if (arr) {
+      var index = indexOf(arr, f)
+      if (index > -1)
+        { map[type] = arr.slice(0, index).concat(arr.slice(index + 1)) }
+    }
+  }
+}
+
+function signal(emitter, type /*, values...*/) {
+  var handlers = getHandlers(emitter, type)
+  if (!handlers.length) { return }
+  var args = Array.prototype.slice.call(arguments, 2)
+  for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args) }
+}
+
+// The DOM events that CodeMirror handles can be overridden by
+// registering a (non-DOM) handler on the editor for the event name,
+// and preventDefault-ing the event in that handler.
+function signalDOMEvent(cm, e, override) {
+  if (typeof e == "string")
+    { e = {type: e, preventDefault: function() { this.defaultPrevented = true }} }
+  signal(cm, override || e.type, cm, e)
+  return e_defaultPrevented(e) || e.codemirrorIgnore
+}
+
+function signalCursorActivity(cm) {
+  var arr = cm._handlers && cm._handlers.cursorActivity
+  if (!arr) { return }
+  var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = [])
+  for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1)
+    { set.push(arr[i]) } }
+}
+
+function hasHandler(emitter, type) {
+  return getHandlers(emitter, type).length > 0
+}
+
+// Add on and off methods to a constructor's prototype, to make
+// registering events on such objects more convenient.
+function eventMixin(ctor) {
+  ctor.prototype.on = function(type, f) {on(this, type, f)}
+  ctor.prototype.off = function(type, f) {off(this, type, f)}
+}
+
+// Due to the fact that we still support jurassic IE versions, some
+// compatibility wrappers are needed.
+
+function e_preventDefault(e) {
+  if (e.preventDefault) { e.preventDefault() }
+  else { e.returnValue = false }
+}
+function e_stopPropagation(e) {
+  if (e.stopPropagation) { e.stopPropagation() }
+  else { e.cancelBubble = true }
+}
+function e_defaultPrevented(e) {
+  return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false
+}
+function e_stop(e) {e_preventDefault(e); e_stopPropagation(e)}
+
+function e_target(e) {return e.target || e.srcElement}
+function e_button(e) {
+  var b = e.which
+  if (b == null) {
+    if (e.button & 1) { b = 1 }
+    else if (e.button & 2) { b = 3 }
+    else if (e.button & 4) { b = 2 }
+  }
+  if (mac && e.ctrlKey && b == 1) { b = 3 }
+  return b
+}
+
+// Detect drag-and-drop
+var dragAndDrop = function() {
+  // There is *some* kind of drag-and-drop support in IE6-8, but I
+  // couldn't get it to work yet.
+  if (ie && ie_version < 9) { return false }
+  var div = elt('div')
+  return "draggable" in div || "dragDrop" in div
+}()
+
+var zwspSupported
+function zeroWidthElement(measure) {
+  if (zwspSupported == null) {
+    var test = elt("span", "\u200b")
+    removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]))
+    if (measure.firstChild.offsetHeight != 0)
+      { zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8) }
+  }
+  var node = zwspSupported ? elt("span", "\u200b") :
+    elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px")
+  node.setAttribute("cm-text", "")
+  return node
+}
+
+// Feature-detect IE's crummy client rect reporting for bidi text
+var badBidiRects
+function hasBadBidiRects(measure) {
+  if (badBidiRects != null) { return badBidiRects }
+  var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"))
+  var r0 = range(txt, 0, 1).getBoundingClientRect()
+  var r1 = range(txt, 1, 2).getBoundingClientRect()
+  removeChildren(measure)
+  if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780)
+  return badBidiRects = (r1.right - r0.right < 3)
+}
+
+// See if "".split is the broken IE version, if so, provide an
+// alternative way to split lines.
+var splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? function (string) {
+  var pos = 0, result = [], l = string.length
+  while (pos <= l) {
+    var nl = string.indexOf("\n", pos)
+    if (nl == -1) { nl = string.length }
+    var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl)
+    var rt = line.indexOf("\r")
+    if (rt != -1) {
+      result.push(line.slice(0, rt))
+      pos += rt + 1
+    } else {
+      result.push(line)
+      pos = nl + 1
+    }
+  }
+  return result
+} : function (string) { return string.split(/\r\n?|\n/); }
+
+var hasSelection = window.getSelection ? function (te) {
+  try { return te.selectionStart != te.selectionEnd }
+  catch(e) { return false }
+} : function (te) {
+  var range
+  try {range = te.ownerDocument.selection.createRange()}
+  catch(e) {}
+  if (!range || range.parentElement() != te) { return false }
+  return range.compareEndPoints("StartToEnd", range) != 0
+}
+
+var hasCopyEvent = (function () {
+  var e = elt("div")
+  if ("oncopy" in e) { return true }
+  e.setAttribute("oncopy", "return;")
+  return typeof e.oncopy == "function"
+})()
+
+var badZoomedRects = null
+function hasBadZoomedRects(measure) {
+  if (badZoomedRects != null) { return badZoomedRects }
+  var node = removeChildrenAndAdd(measure, elt("span", "x"))
+  var normal = node.getBoundingClientRect()
+  var fromRange = range(node, 0, 1).getBoundingClientRect()
+  return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1
+}
+
+var modes = {};
+var mimeModes = {};
+// Extra arguments are stored as the mode's dependencies, which is
+// used by (legacy) mechanisms like loadmode.js to automatically
+// load a mode. (Preferred mechanism is the require/define calls.)
+function defineMode(name, mode) {
+  if (arguments.length > 2)
+    { mode.dependencies = Array.prototype.slice.call(arguments, 2) }
+  modes[name] = mode
+}
+
+function defineMIME(mime, spec) {
+  mimeModes[mime] = spec
+}
+
+// Given a MIME type, a {name, ...options} config object, or a name
+// string, return a mode config object.
+function resolveMode(spec) {
+  if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
+    spec = mimeModes[spec]
+  } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
+    var found = mimeModes[spec.name]
+    if (typeof found == "string") { found = {name: found} }
+    spec = createObj(found, spec)
+    spec.name = found.name
+  } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
+    return resolveMode("application/xml")
+  } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) {
+    return resolveMode("application/json")
+  }
+  if (typeof spec == "string") { return {name: spec} }
+  else { return spec || {name: "null"} }
+}
+
+// Given a mode spec (anything that resolveMode accepts), find and
+// initialize an actual mode object.
+function getMode(options, spec) {
+  spec = resolveMode(spec)
+  var mfactory = modes[spec.name]
+  if (!mfactory) { return getMode(options, "text/plain") }
+  var modeObj = mfactory(options, spec)
+  if (modeExtensions.hasOwnProperty(spec.name)) {
+    var exts = modeExtensions[spec.name]
+    for (var prop in exts) {
+      if (!exts.hasOwnProperty(prop)) { continue }
+      if (modeObj.hasOwnProperty(prop)) { modeObj["_" + prop] = modeObj[prop] }
+      modeObj[prop] = exts[prop]
+    }
+  }
+  modeObj.name = spec.name
+  if (spec.helperType) { modeObj.helperType = spec.helperType }
+  if (spec.modeProps) { for (var prop$1 in spec.modeProps)
+    { modeObj[prop$1] = spec.modeProps[prop$1] } }
+
+  return modeObj
+}
+
+// This can be used to attach properties to mode objects from
+// outside the actual mode definition.
+var modeExtensions = {}
+function extendMode(mode, properties) {
+  var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {})
+  copyObj(properties, exts)
+}
+
+function copyState(mode, state) {
+  if (state === true) { return state }
+  if (mode.copyState) { return mode.copyState(state) }
+  var nstate = {}
+  for (var n in state) {
+    var val = state[n]
+    if (val instanceof Array) { val = val.concat([]) }
+    nstate[n] = val
+  }
+  return nstate
+}
+
+// Given a mode and a state (for that mode), find the inner mode and
+// state at the position that the state refers to.
+function innerMode(mode, state) {
+  var info
+  while (mode.innerMode) {
+    info = mode.innerMode(state)
+    if (!info || info.mode == mode) { break }
+    state = info.state
+    mode = info.mode
+  }
+  return info || {mode: mode, state: state}
+}
+
+function startState(mode, a1, a2) {
+  return mode.startState ? mode.startState(a1, a2) : true
+}
+
+// STRING STREAM
+
+// Fed to the mode parsers, provides helper functions to make
+// parsers more succinct.
+
+var StringStream = function(string, tabSize) {
+  this.pos = this.start = 0
+  this.string = string
+  this.tabSize = tabSize || 8
+  this.lastColumnPos = this.lastColumnValue = 0
+  this.lineStart = 0
+};
+
+StringStream.prototype.eol = function () {return this.pos >= this.string.length};
+StringStream.prototype.sol = function () {return this.pos == this.lineStart};
+StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined};
+StringStream.prototype.next = function () {
+  if (this.pos < this.string.length)
+    { return this.string.charAt(this.pos++) }
+};
+StringStream.prototype.eat = function (match) {
+  var ch = this.string.charAt(this.pos)
+  var ok
+  if (typeof match == "string") { ok = ch == match }
+  else { ok = ch && (match.test ? match.test(ch) : match(ch)) }
+  if (ok) {++this.pos; return ch}
+};
+StringStream.prototype.eatWhile = function (match) {
+  var start = this.pos
+  while (this.eat(match)){}
+  return this.pos > start
+};
+StringStream.prototype.eatSpace = function () {
+    var this$1 = this;
+
+  var start = this.pos
+  while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this$1.pos }
+  return this.pos > start
+};
+StringStream.prototype.skipToEnd = function () {this.pos = this.string.length};
+StringStream.prototype.skipTo = function (ch) {
+  var found = this.string.indexOf(ch, this.pos)
+  if (found > -1) {this.pos = found; return true}
+};
+StringStream.prototype.backUp = function (n) {this.pos -= n};
+StringStream.prototype.column = function () {
+  if (this.lastColumnPos < this.start) {
+    this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue)
+    this.lastColumnPos = this.start
+  }
+  return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
+};
+StringStream.prototype.indentation = function () {
+  return countColumn(this.string, null, this.tabSize) -
+    (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
+};
+StringStream.prototype.match = function (pattern, consume, caseInsensitive) {
+  if (typeof pattern == "string") {
+    var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; }
+    var substr = this.string.substr(this.pos, pattern.length)
+    if (cased(substr) == cased(pattern)) {
+      if (consume !== false) { this.pos += pattern.length }
+      return true
+    }
+  } else {
+    var match = this.string.slice(this.pos).match(pattern)
+    if (match && match.index > 0) { return null }
+    if (match && consume !== false) { this.pos += match[0].length }
+    return match
+  }
+};
+StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)};
+StringStream.prototype.hideFirstChars = function (n, inner) {
+  this.lineStart += n
+  try { return inner() }
+  finally { this.lineStart -= n }
+};
+
+// Compute a style array (an array starting with a mode generation
+// -- for invalidation -- followed by pairs of end positions and
+// style strings), which is used to highlight the tokens on the
+// line.
+function highlightLine(cm, line, state, forceToEnd) {
+  // A styles array always starts with a number identifying the
+  // mode/overlays that it is based on (for easy invalidation).
+  var st = [cm.state.modeGen], lineClasses = {}
+  // Compute the base array of styles
+  runMode(cm, line.text, cm.doc.mode, state, function (end, style) { return st.push(end, style); },
+    lineClasses, forceToEnd)
+
+  // Run overlays, adjust style array.
+  var loop = function ( o ) {
+    var overlay = cm.state.overlays[o], i = 1, at = 0
+    runMode(cm, line.text, overlay.mode, true, function (end, style) {
+      var start = i
+      // Ensure there's a token end at the current position, and that i points at it
+      while (at < end) {
+        var i_end = st[i]
+        if (i_end > end)
+          { st.splice(i, 1, end, st[i+1], i_end) }
+        i += 2
+        at = Math.min(end, i_end)
+      }
+      if (!style) { return }
+      if (overlay.opaque) {
+        st.splice(start, i - start, end, "overlay " + style)
+        i = start + 2
+      } else {
+        for (; start < i; start += 2) {
+          var cur = st[start+1]
+          st[start+1] = (cur ? cur + " " : "") + "overlay " + style
+        }
+      }
+    }, lineClasses)
+  };
+
+  for (var o = 0; o < cm.state.overlays.length; ++o) loop( o );
+
+  return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}
+}
+
+function getLineStyles(cm, line, updateFrontier) {
+  if (!line.styles || line.styles[0] != cm.state.modeGen) {
+    var state = getStateBefore(cm, lineNo(line))
+    var result = highlightLine(cm, line, line.text.length > cm.options.maxHighlightLength ? copyState(cm.doc.mode, state) : state)
+    line.stateAfter = state
+    line.styles = result.styles
+    if (result.classes) { line.styleClasses = result.classes }
+    else if (line.styleClasses) { line.styleClasses = null }
+    if (updateFrontier === cm.doc.frontier) { cm.doc.frontier++ }
+  }
+  return line.styles
+}
+
+function getStateBefore(cm, n, precise) {
+  var doc = cm.doc, display = cm.display
+  if (!doc.mode.startState) { return true }
+  var pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos-1).stateAfter
+  if (!state) { state = startState(doc.mode) }
+  else { state = copyState(doc.mode, state) }
+  doc.iter(pos, n, function (line) {
+    processLine(cm, line.text, state)
+    var save = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo
+    line.stateAfter = save ? copyState(doc.mode, state) : null
+    ++pos
+  })
+  if (precise) { doc.frontier = pos }
+  return state
+}
+
+// Lightweight form of highlight -- proceed over this line and
+// update state, but don't save a style array. Used for lines that
+// aren't currently visible.
+function processLine(cm, text, state, startAt) {
+  var mode = cm.doc.mode
+  var stream = new StringStream(text, cm.options.tabSize)
+  stream.start = stream.pos = startAt || 0
+  if (text == "") { callBlankLine(mode, state) }
+  while (!stream.eol()) {
+    readToken(mode, stream, state)
+    stream.start = stream.pos
+  }
+}
+
+function callBlankLine(mode, state) {
+  if (mode.blankLine) { return mode.blankLine(state) }
+  if (!mode.innerMode) { return }
+  var inner = innerMode(mode, state)
+  if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) }
+}
+
+function readToken(mode, stream, state, inner) {
+  for (var i = 0; i < 10; i++) {
+    if (inner) { inner[0] = innerMode(mode, state).mode }
+    var style = mode.token(stream, state)
+    if (stream.pos > stream.start) { return style }
+  }
+  throw new Error("Mode " + mode.name + " failed to advance stream.")
+}
+
+// Utility for getTokenAt and getLineTokens
+function takeToken(cm, pos, precise, asArray) {
+  var getObj = function (copy) { return ({
+    start: stream.start, end: stream.pos,
+    string: stream.current(),
+    type: style || null,
+    state: copy ? copyState(doc.mode, state) : state
+  }); }
+
+  var doc = cm.doc, mode = doc.mode, style
+  pos = clipPos(doc, pos)
+  var line = getLine(doc, pos.line), state = getStateBefore(cm, pos.line, precise)
+  var stream = new StringStream(line.text, cm.options.tabSize), tokens
+  if (asArray) { tokens = [] }
+  while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
+    stream.start = stream.pos
+    style = readToken(mode, stream, state)
+    if (asArray) { tokens.push(getObj(true)) }
+  }
+  return asArray ? tokens : getObj()
+}
+
+function extractLineClasses(type, output) {
+  if (type) { for (;;) {
+    var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/)
+    if (!lineClass) { break }
+    type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length)
+    var prop = lineClass[1] ? "bgClass" : "textClass"
+    if (output[prop] == null)
+      { output[prop] = lineClass[2] }
+    else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop]))
+      { output[prop] += " " + lineClass[2] }
+  } }
+  return type
+}
+
+// Run the given mode's parser over a line, calling f for each token.
+function runMode(cm, text, mode, state, f, lineClasses, forceToEnd) {
+  var flattenSpans = mode.flattenSpans
+  if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans }
+  var curStart = 0, curStyle = null
+  var stream = new StringStream(text, cm.options.tabSize), style
+  var inner = cm.options.addModeClass && [null]
+  if (text == "") { extractLineClasses(callBlankLine(mode, state), lineClasses) }
+  while (!stream.eol()) {
+    if (stream.pos > cm.options.maxHighlightLength) {
+      flattenSpans = false
+      if (forceToEnd) { processLine(cm, text, state, stream.pos) }
+      stream.pos = text.length
+      style = null
+    } else {
+      style = extractLineClasses(readToken(mode, stream, state, inner), lineClasses)
+    }
+    if (inner) {
+      var mName = inner[0].name
+      if (mName) { style = "m-" + (style ? mName + " " + style : mName) }
+    }
+    if (!flattenSpans || curStyle != style) {
+      while (curStart < stream.start) {
+        curStart = Math.min(stream.start, curStart + 5000)
+        f(curStart, curStyle)
+      }
+      curStyle = style
+    }
+    stream.start = stream.pos
+  }
+  while (curStart < stream.pos) {
+    // Webkit seems to refuse to render text nodes longer than 57444
+    // characters, and returns inaccurate measurements in nodes
+    // starting around 5000 chars.
+    var pos = Math.min(stream.pos, curStart + 5000)
+    f(pos, curStyle)
+    curStart = pos
+  }
+}
+
+// Finds the line to start with when starting a parse. Tries to
+// find a line with a stateAfter, so that it can start with a
+// valid state. If that fails, it returns the line with the
+// smallest indentation, which tends to need the least context to
+// parse correctly.
+function findStartLine(cm, n, precise) {
+  var minindent, minline, doc = cm.doc
+  var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100)
+  for (var search = n; search > lim; --search) {
+    if (search <= doc.first) { return doc.first }
+    var line = getLine(doc, search - 1)
+    if (line.stateAfter && (!precise || search <= doc.frontier)) { return search }
+    var indented = countColumn(line.text, null, cm.options.tabSize)
+    if (minline == null || minindent > indented) {
+      minline = search - 1
+      minindent = indented
+    }
+  }
+  return minline
+}
+
+// LINE DATA STRUCTURE
+
+// Line objects. These hold state related to a line, including
+// highlighting info (the styles array).
+var Line = function(text, markedSpans, estimateHeight) {
+  this.text = text
+  attachMarkedSpans(this, markedSpans)
+  this.height = estimateHeight ? estimateHeight(this) : 1
+};
+
+Line.prototype.lineNo = function () { return lineNo(this) };
+eventMixin(Line)
+
+// Change the content (text, markers) of a line. Automatically
+// invalidates cached information and tries to re-estimate the
+// line's height.
+function updateLine(line, text, markedSpans, estimateHeight) {
+  line.text = text
+  if (line.stateAfter) { line.stateAfter = null }
+  if (line.styles) { line.styles = null }
+  if (line.order != null) { line.order = null }
+  detachMarkedSpans(line)
+  attachMarkedSpans(line, markedSpans)
+  var estHeight = estimateHeight ? estimateHeight(line) : 1
+  if (estHeight != line.height) { updateLineHeight(line, estHeight) }
+}
+
+// Detach a line from the document tree and its markers.
+function cleanUpLine(line) {
+  line.parent = null
+  detachMarkedSpans(line)
+}
+
+// Convert a style as returned by a mode (either null, or a string
+// containing one or more styles) to a CSS style. This is cached,
+// and also looks for line-wide styles.
+var styleToClassCache = {};
+var styleToClassCacheWithMode = {};
+function interpretTokenStyle(style, options) {
+  if (!style || /^\s*$/.test(style)) { return null }
+  var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache
+  return cache[style] ||
+    (cache[style] = style.replace(/\S+/g, "cm-$&"))
+}
+
+// Render the DOM representation of the text of a line. Also builds
+// up a 'line map', which points at the DOM nodes that represent
+// specific stretches of text, and is used by the measuring code.
+// The returned object contains the DOM node, this map, and
+// information about line-wide styles that were set by the mode.
+function buildLineContent(cm, lineView) {
+  // The padding-right forces the element to have a 'border', which
+  // is needed on Webkit to be able to get line-level bounding
+  // rectangles for it (in measureChar).
+  var content = eltP("span", null, null, webkit ? "padding-right: .1px" : null)
+  var builder = {pre: eltP("pre", [content], "CodeMirror-line"), content: content,
+                 col: 0, pos: 0, cm: cm,
+                 trailingSpace: false,
+                 splitSpaces: (ie || webkit) && cm.getOption("lineWrapping")}
+  lineView.measure = {}
+
+  // Iterate over the logical lines that make up this visual line.
+  for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
+    var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0)
+    builder.pos = 0
+    builder.addToken = buildToken
+    // Optionally wire in some hacks into the token-rendering
+    // algorithm, to deal with browser quirks.
+    if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction)))
+      { builder.addToken = buildTokenBadBidi(builder.addToken, order) }
+    builder.map = []
+    var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line)
+    insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate))
+    if (line.styleClasses) {
+      if (line.styleClasses.bgClass)
+        { builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || "") }
+      if (line.styleClasses.textClass)
+        { builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || "") }
+    }
+
+    // Ensure at least a single node is present, for measuring.
+    if (builder.map.length == 0)
+      { builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))) }
+
+    // Store the map and a cache object for the current logical line
+    if (i == 0) {
+      lineView.measure.map = builder.map
+      lineView.measure.cache = {}
+    } else {
+      ;(lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map)
+      ;(lineView.measure.caches || (lineView.measure.caches = [])).push({})
+    }
+  }
+
+  // See issue #2901
+  if (webkit) {
+    var last = builder.content.lastChild
+    if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab")))
+      { builder.content.className = "cm-tab-wrap-hack" }
+  }
+
+  signal(cm, "renderLine", cm, lineView.line, builder.pre)
+  if (builder.pre.className)
+    { builder.textClass = joinClasses(builder.pre.className, builder.textClass || "") }
+
+  return builder
+}
+
+function defaultSpecialCharPlaceholder(ch) {
+  var token = elt("span", "\u2022", "cm-invalidchar")
+  token.title = "\\u" + ch.charCodeAt(0).toString(16)
+  token.setAttribute("aria-label", token.title)
+  return token
+}
+
+// Build up the DOM representation for a single token, and add it to
+// the line map. Takes care to render special characters separately.
+function buildToken(builder, text, style, startStyle, endStyle, title, css) {
+  if (!text) { return }
+  var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text
+  var special = builder.cm.state.specialChars, mustWrap = false
+  var content
+  if (!special.test(text)) {
+    builder.col += text.length
+    content = document.createTextNode(displayText)
+    builder.map.push(builder.pos, builder.pos + text.length, content)
+    if (ie && ie_version < 9) { mustWrap = true }
+    builder.pos += text.length
+  } else {
+    content = document.createDocumentFragment()
+    var pos = 0
+    while (true) {
+      special.lastIndex = pos
+      var m = special.exec(text)
+      var skipped = m ? m.index - pos : text.length - pos
+      if (skipped) {
+        var txt = document.createTextNode(displayText.slice(pos, pos + skipped))
+        if (ie && ie_version < 9) { content.appendChild(elt("span", [txt])) }
+        else { content.appendChild(txt) }
+        builder.map.push(builder.pos, builder.pos + skipped, txt)
+        builder.col += skipped
+        builder.pos += skipped
+      }
+      if (!m) { break }
+      pos += skipped + 1
+      var txt$1 = (void 0)
+      if (m[0] == "\t") {
+        var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize
+        txt$1 = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"))
+        txt$1.setAttribute("role", "presentation")
+        txt$1.setAttribute("cm-text", "\t")
+        builder.col += tabWidth
+      } else if (m[0] == "\r" || m[0] == "\n") {
+        txt$1 = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar"))
+        txt$1.setAttribute("cm-text", m[0])
+        builder.col += 1
+      } else {
+        txt$1 = builder.cm.options.specialCharPlaceholder(m[0])
+        txt$1.setAttribute("cm-text", m[0])
+        if (ie && ie_version < 9) { content.appendChild(elt("span", [txt$1])) }
+        else { content.appendChild(txt$1) }
+        builder.col += 1
+      }
+      builder.map.push(builder.pos, builder.pos + 1, txt$1)
+      builder.pos++
+    }
+  }
+  builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32
+  if (style || startStyle || endStyle || mustWrap || css) {
+    var fullStyle = style || ""
+    if (startStyle) { fullStyle += startStyle }
+    if (endStyle) { fullStyle += endStyle }
+    var token = elt("span", [content], fullStyle, css)
+    if (title) { token.title = title }
+    return builder.content.appendChild(token)
+  }
+  builder.content.appendChild(content)
+}
+
+function splitSpaces(text, trailingBefore) {
+  if (text.length > 1 && !/  /.test(text)) { return text }
+  var spaceBefore = trailingBefore, result = ""
+  for (var i = 0; i < text.length; i++) {
+    var ch = text.charAt(i)
+    if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32))
+      { ch = "\u00a0" }
+    result += ch
+    spaceBefore = ch == " "
+  }
+  return result
+}
+
+// Work around nonsense dimensions being reported for stretches of
+// right-to-left text.
+function buildTokenBadBidi(inner, order) {
+  return function (builder, text, style, startStyle, endStyle, title, css) {
+    style = style ? style + " cm-force-border" : "cm-force-border"
+    var start = builder.pos, end = start + text.length
+    for (;;) {
+      // Find the part that overlaps with the start of this text
+      var part = (void 0)
+      for (var i = 0; i < order.length; i++) {
+        part = order[i]
+        if (part.to > start && part.from <= start) { break }
+      }
+      if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, title, css) }
+      inner(builder, text.slice(0, part.to - start), style, startStyle, null, title, css)
+      startStyle = null
+      text = text.slice(part.to - start)
+      start = part.to
+    }
+  }
+}
+
+function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
+  var widget = !ignoreWidget && marker.widgetNode
+  if (widget) { builder.map.push(builder.pos, builder.pos + size, widget) }
+  if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {
+    if (!widget)
+      { widget = builder.content.appendChild(document.createElement("span")) }
+    widget.setAttribute("cm-marker", marker.id)
+  }
+  if (widget) {
+    builder.cm.display.input.setUneditable(widget)
+    builder.content.appendChild(widget)
+  }
+  builder.pos += size
+  builder.trailingSpace = false
+}
+
+// Outputs a number of spans to make up a line, taking highlighting
+// and marked text into account.
+function insertLineContent(line, builder, styles) {
+  var spans = line.markedSpans, allText = line.text, at = 0
+  if (!spans) {
+    for (var i$1 = 1; i$1 < styles.length; i$1+=2)
+      { builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)) }
+    return
+  }
+
+  var len = allText.length, pos = 0, i = 1, text = "", style, css
+  var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed
+  for (;;) {
+    if (nextChange == pos) { // Update current marker set
+      spanStyle = spanEndStyle = spanStartStyle = title = css = ""
+      collapsed = null; nextChange = Infinity
+      var foundBookmarks = [], endStyles = (void 0)
+      for (var j = 0; j < spans.length; ++j) {
+        var sp = spans[j], m = sp.marker
+        if (m.type == "bookmark" && sp.from == pos && m.widgetNode) {
+          foundBookmarks.push(m)
+        } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {
+          if (sp.to != null && sp.to != pos && nextChange > sp.to) {
+            nextChange = sp.to
+            spanEndStyle = ""
+          }
+          if (m.className) { spanStyle += " " + m.className }
+          if (m.css) { css = (css ? css + ";" : "") + m.css }
+          if (m.startStyle && sp.from == pos) { spanStartStyle += " " + m.startStyle }
+          if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to) }
+          if (m.title && !title) { title = m.title }
+          if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
+            { collapsed = sp }
+        } else if (sp.from > pos && nextChange > sp.from) {
+          nextChange = sp.from
+        }
+      }
+      if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2)
+        { if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += " " + endStyles[j$1] } } }
+
+      if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2)
+        { buildCollapsedSpan(builder, 0, foundBookmarks[j$2]) } }
+      if (collapsed && (collapsed.from || 0) == pos) {
+        buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
+                           collapsed.marker, collapsed.from == null)
+        if (collapsed.to == null) { return }
+        if (collapsed.to == pos) { collapsed = false }
+      }
+    }
+    if (pos >= len) { break }
+
+    var upto = Math.min(len, nextChange)
+    while (true) {
+      if (text) {
+        var end = pos + text.length
+        if (!collapsed) {
+          var tokenText = end > upto ? text.slice(0, upto - pos) : text
+          builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
+                           spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title, css)
+        }
+        if (end >= upto) {text = text.slice(upto - pos); pos = upto; break}
+        pos = end
+        spanStartStyle = ""
+      }
+      text = allText.slice(at, at = styles[i++])
+      style = interpretTokenStyle(styles[i++], builder.cm.options)
+    }
+  }
+}
+
+
+// These objects are used to represent the visible (currently drawn)
+// part of the document. A LineView may correspond to multiple
+// logical lines, if those are connected by collapsed ranges.
+function LineView(doc, line, lineN) {
+  // The starting line
+  this.line = line
+  // Continuing lines, if any
+  this.rest = visualLineContinued(line)
+  // Number of logical lines in this visual line
+  this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1
+  this.node = this.text = null
+  this.hidden = lineIsHidden(doc, line)
+}
+
+// Create a range of LineView objects for the given lines.
+function buildViewArray(cm, from, to) {
+  var array = [], nextPos
+  for (var pos = from; pos < to; pos = nextPos) {
+    var view = new LineView(cm.doc, getLine(cm.doc, pos), pos)
+    nextPos = pos + view.size
+    array.push(view)
+  }
+  return array
+}
+
+var operationGroup = null
+
+function pushOperation(op) {
+  if (operationGroup) {
+    operationGroup.ops.push(op)
+  } else {
+    op.ownsGroup = operationGroup = {
+      ops: [op],
+      delayedCallbacks: []
+    }
+  }
+}
+
+function fireCallbacksForOps(group) {
+  // Calls delayed callbacks and cursorActivity handlers until no
+  // new ones appear
+  var callbacks = group.delayedCallbacks, i = 0
+  do {
+    for (; i < callbacks.length; i++)
+      { callbacks[i].call(null) }
+    for (var j = 0; j < group.ops.length; j++) {
+      var op = group.ops[j]
+      if (op.cursorActivityHandlers)
+        { while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
+          { op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm) } }
+    }
+  } while (i < callbacks.length)
+}
+
+function finishOperation(op, endCb) {
+  var group = op.ownsGroup
+  if (!group) { return }
+
+  try { fireCallbacksForOps(group) }
+  finally {
+    operationGroup = null
+    endCb(group)
+  }
+}
+
+var orphanDelayedCallbacks = null
+
+// Often, we want to signal events at a point where we are in the
+// middle of some work, but don't want the handler to start calling
+// other methods on the editor, which might be in an inconsistent
+// state or simply not expect any other events to happen.
+// signalLater looks whether there are any handlers, and schedules
+// them to be executed when the last operation ends, or, if no
+// operation is active, when a timeout fires.
+function signalLater(emitter, type /*, values...*/) {
+  var arr = getHandlers(emitter, type)
+  if (!arr.length) { return }
+  var args = Array.prototype.slice.call(arguments, 2), list
+  if (operationGroup) {
+    list = operationGroup.delayedCallbacks
+  } else if (orphanDelayedCallbacks) {
+    list = orphanDelayedCallbacks
+  } else {
+    list = orphanDelayedCallbacks = []
+    setTimeout(fireOrphanDelayed, 0)
+  }
+  var loop = function ( i ) {
+    list.push(function () { return arr[i].apply(null, args); })
+  };
+
+  for (var i = 0; i < arr.length; ++i)
+    loop( i );
+}
+
+function fireOrphanDelayed() {
+  var delayed = orphanDelayedCallbacks
+  orphanDelayedCallbacks = null
+  for (var i = 0; i < delayed.length; ++i) { delayed[i]() }
+}
+
+// When an aspect of a line changes, a string is added to
+// lineView.changes. This updates the relevant part of the line's
+// DOM structure.
+function updateLineForChanges(cm, lineView, lineN, dims) {
+  for (var j = 0; j < lineView.changes.length; j++) {
+    var type = lineView.changes[j]
+    if (type == "text") { updateLineText(cm, lineView) }
+    else if (type == "gutter") { updateLineGutter(cm, lineView, lineN, dims) }
+    else if (type == "class") { updateLineClasses(cm, lineView) }
+    else if (type == "widget") { updateLineWidgets(cm, lineView, dims) }
+  }
+  lineView.changes = null
+}
+
+// Lines with gutter elements, widgets or a background class need to
+// be wrapped, and have the extra elements added to the wrapper div
+function ensureLineWrapped(lineView) {
+  if (lineView.node == lineView.text) {
+    lineView.node = elt("div", null, null, "position: relative")
+    if (lineView.text.parentNode)
+      { lineView.text.parentNode.replaceChild(lineView.node, lineView.text) }
+    lineView.node.appendChild(lineView.text)
+    if (ie && ie_version < 8) { lineView.node.style.zIndex = 2 }
+  }
+  return lineView.node
+}
+
+function updateLineBackground(cm, lineView) {
+  var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass
+  if (cls) { cls += " CodeMirror-linebackground" }
+  if (lineView.background) {
+    if (cls) { lineView.background.className = cls }
+    else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null }
+  } else if (cls) {
+    var wrap = ensureLineWrapped(lineView)
+    lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild)
+    cm.display.input.setUneditable(lineView.background)
+  }
+}
+
+// Wrapper around buildLineContent which will reuse the structure
+// in display.externalMeasured when possible.
+function getLineContent(cm, lineView) {
+  var ext = cm.display.externalMeasured
+  if (ext && ext.line == lineView.line) {
+    cm.display.externalMeasured = null
+    lineView.measure = ext.measure
+    return ext.built
+  }
+  return buildLineContent(cm, lineView)
+}
+
+// Redraw the line's text. Interacts with the background and text
+// classes because the mode may output tokens that influence these
+// classes.
+function updateLineText(cm, lineView) {
+  var cls = lineView.text.className
+  var built = getLineContent(cm, lineView)
+  if (lineView.text == lineView.node) { lineView.node = built.pre }
+  lineView.text.parentNode.replaceChild(built.pre, lineView.text)
+  lineView.text = built.pre
+  if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
+    lineView.bgClass = built.bgClass
+    lineView.textClass = built.textClass
+    updateLineClasses(cm, lineView)
+  } else if (cls) {
+    lineView.text.className = cls
+  }
+}
+
+function updateLineClasses(cm, lineView) {
+  updateLineBackground(cm, lineView)
+  if (lineView.line.wrapClass)
+    { ensureLineWrapped(lineView).className = lineView.line.wrapClass }
+  else if (lineView.node != lineView.text)
+    { lineView.node.className = "" }
+  var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass
+  lineView.text.className = textClass || ""
+}
+
+function updateLineGutter(cm, lineView, lineN, dims) {
+  if (lineView.gutter) {
+    lineView.node.removeChild(lineView.gutter)
+    lineView.gutter = null
+  }
+  if (lineView.gutterBackground) {
+    lineView.node.removeChild(lineView.gutterBackground)
+    lineView.gutterBackground = null
+  }
+  if (lineView.line.gutterClass) {
+    var wrap = ensureLineWrapped(lineView)
+    lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass,
+                                    ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px; width: " + (dims.gutterTotalWidth) + "px"))
+    cm.display.input.setUneditable(lineView.gutterBackground)
+    wrap.insertBefore(lineView.gutterBackground, lineView.text)
+  }
+  var markers = lineView.line.gutterMarkers
+  if (cm.options.lineNumbers || markers) {
+    var wrap$1 = ensureLineWrapped(lineView)
+    var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px"))
+    cm.display.input.setUneditable(gutterWrap)
+    wrap$1.insertBefore(gutterWrap, lineView.text)
+    if (lineView.line.gutterClass)
+      { gutterWrap.className += " " + lineView.line.gutterClass }
+    if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
+      { lineView.lineNumber = gutterWrap.appendChild(
+        elt("div", lineNumberFor(cm.options, lineN),
+            "CodeMirror-linenumber CodeMirror-gutter-elt",
+            ("left: " + (dims.gutterLeft["CodeMirror-linenumbers"]) + "px; width: " + (cm.display.lineNumInnerWidth) + "px"))) }
+    if (markers) { for (var k = 0; k < cm.options.gutters.length; ++k) {
+      var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id]
+      if (found)
+        { gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt",
+                                   ("left: " + (dims.gutterLeft[id]) + "px; width: " + (dims.gutterWidth[id]) + "px"))) }
+    } }
+  }
+}
+
+function updateLineWidgets(cm, lineView, dims) {
+  if (lineView.alignable) { lineView.alignable = null }
+  for (var node = lineView.node.firstChild, next = (void 0); node; node = next) {
+    next = node.nextSibling
+    if (node.className == "CodeMirror-linewidget")
+      { lineView.node.removeChild(node) }
+  }
+  insertLineWidgets(cm, lineView, dims)
+}
+
+// Build a line's DOM representation from scratch
+function buildLineElement(cm, lineView, lineN, dims) {
+  var built = getLineContent(cm, lineView)
+  lineView.text = lineView.node = built.pre
+  if (built.bgClass) { lineView.bgClass = built.bgClass }
+  if (built.textClass) { lineView.textClass = built.textClass }
+
+  updateLineClasses(cm, lineView)
+  updateLineGutter(cm, lineView, lineN, dims)
+  insertLineWidgets(cm, lineView, dims)
+  return lineView.node
+}
+
+// A lineView may contain multiple logical lines (when merged by
+// collapsed spans). The widgets for all of them need to be drawn.
+function insertLineWidgets(cm, lineView, dims) {
+  insertLineWidgetsFor(cm, lineView.line, lineView, dims, true)
+  if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
+    { insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false) } }
+}
+
+function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
+  if (!line.widgets) { return }
+  var wrap = ensureLineWrapped(lineView)
+  for (var i = 0, ws = line.widgets; i < ws.length; ++i) {
+    var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget")
+    if (!widget.handleMouseEvents) { node.setAttribute("cm-ignore-events", "true") }
+    positionLineWidget(widget, node, lineView, dims)
+    cm.display.input.setUneditable(node)
+    if (allowAbove && widget.above)
+      { wrap.insertBefore(node, lineView.gutter || lineView.text) }
+    else
+      { wrap.appendChild(node) }
+    signalLater(widget, "redraw")
+  }
+}
+
+function positionLineWidget(widget, node, lineView, dims) {
+  if (widget.noHScroll) {
+    ;(lineView.alignable || (lineView.alignable = [])).push(node)
+    var width = dims.wrapperWidth
+    node.style.left = dims.fixedPos + "px"
+    if (!widget.coverGutter) {
+      width -= dims.gutterTotalWidth
+      node.style.paddingLeft = dims.gutterTotalWidth + "px"
+    }
+    node.style.width = width + "px"
+  }
+  if (widget.coverGutter) {
+    node.style.zIndex = 5
+    node.style.position = "relative"
+    if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + "px" }
+  }
+}
+
+function widgetHeight(widget) {
+  if (widget.height != null) { return widget.height }
+  var cm = widget.doc.cm
+  if (!cm) { return 0 }
+  if (!contains(document.body, widget.node)) {
+    var parentStyle = "position: relative;"
+    if (widget.coverGutter)
+      { parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;" }
+    if (widget.noHScroll)
+      { parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;" }
+    removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle))
+  }
+  return widget.height = widget.node.parentNode.offsetHeight
+}
+
+// Return true when the given mouse event happened in a widget
+function eventInWidget(display, e) {
+  for (var n = e_target(e); n != display.wrapper; n = n.parentNode) {
+    if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
+        (n.parentNode == display.sizer && n != display.mover))
+      { return true }
+  }
+}
+
+// POSITION MEASUREMENT
+
+function paddingTop(display) {return display.lineSpace.offsetTop}
+function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight}
+function paddingH(display) {
+  if (display.cachedPaddingH) { return display.cachedPaddingH }
+  var e = removeChildrenAndAdd(display.measure, elt("pre", "x"))
+  var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle
+  var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)}
+  if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data }
+  return data
+}
+
+function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth }
+function displayWidth(cm) {
+  return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth
+}
+function displayHeight(cm) {
+  return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight
+}
+
+// Ensure the lineView.wrapping.heights array is populated. This is
+// an array of bottom offsets for the lines that make up a drawn
+// line. When lineWrapping is on, there might be more than one
+// height.
+function ensureLineHeights(cm, lineView, rect) {
+  var wrapping = cm.options.lineWrapping
+  var curWidth = wrapping && displayWidth(cm)
+  if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
+    var heights = lineView.measure.heights = []
+    if (wrapping) {
+      lineView.measure.width = curWidth
+      var rects = lineView.text.firstChild.getClientRects()
+      for (var i = 0; i < rects.length - 1; i++) {
+        var cur = rects[i], next = rects[i + 1]
+        if (Math.abs(cur.bottom - next.bottom) > 2)
+          { heights.push((cur.bottom + next.top) / 2 - rect.top) }
+      }
+    }
+    heights.push(rect.bottom - rect.top)
+  }
+}
+
+// Find a line map (mapping character offsets to text nodes) and a
+// measurement cache for the given line number. (A line view might
+// contain multiple lines when collapsed ranges are present.)
+function mapFromLineView(lineView, line, lineN) {
+  if (lineView.line == line)
+    { return {map: lineView.measure.map, cache: lineView.measure.cache} }
+  for (var i = 0; i < lineView.rest.length; i++)
+    { if (lineView.rest[i] == line)
+      { return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } }
+  for (var i$1 = 0; i$1 < lineView.rest.length; i$1++)
+    { if (lineNo(lineView.rest[i$1]) > lineN)
+      { return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } }
+}
+
+// Render a line into the hidden node display.externalMeasured. Used
+// when measurement is needed for a line that's not in the viewport.
+function updateExternalMeasurement(cm, line) {
+  line = visualLine(line)
+  var lineN = lineNo(line)
+  var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN)
+  view.lineN = lineN
+  var built = view.built = buildLineContent(cm, view)
+  view.text = built.pre
+  removeChildrenAndAdd(cm.display.lineMeasure, built.pre)
+  return view
+}
+
+// Get a {top, bottom, left, right} box (in line-local coordinates)
+// for a given character.
+function measureChar(cm, line, ch, bias) {
+  return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias)
+}
+
+// Find a line view that corresponds to the given line number.
+function findViewForLine(cm, lineN) {
+  if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
+    { return cm.display.view[findViewIndex(cm, lineN)] }
+  var ext = cm.display.externalMeasured
+  if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
+    { return ext }
+}
+
+// Measurement can be split in two steps, the set-up work that
+// applies to the whole line, and the measurement of the actual
+// character. Functions like coordsChar, that need to do a lot of
+// measurements in a row, can thus ensure that the set-up work is
+// only done once.
+function prepareMeasureForLine(cm, line) {
+  var lineN = lineNo(line)
+  var view = findViewForLine(cm, lineN)
+  if (view && !view.text) {
+    view = null
+  } else if (view && view.changes) {
+    updateLineForChanges(cm, view, lineN, getDimensions(cm))
+    cm.curOp.forceUpdate = true
+  }
+  if (!view)
+    { view = updateExternalMeasurement(cm, line) }
+
+  var info = mapFromLineView(view, line, lineN)
+  return {
+    line: line, view: view, rect: null,
+    map: info.map, cache: info.cache, before: info.before,
+    hasHeights: false
+  }
+}
+
+// Given a prepared measurement object, measures the position of an
+// actual character (or fetches it from the cache).
+function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
+  if (prepared.before) { ch = -1 }
+  var key = ch + (bias || ""), found
+  if (prepared.cache.hasOwnProperty(key)) {
+    found = prepared.cache[key]
+  } else {
+    if (!prepared.rect)
+      { prepared.rect = prepared.view.text.getBoundingClientRect() }
+    if (!prepared.hasHeights) {
+      ensureLineHeights(cm, prepared.view, prepared.rect)
+      prepared.hasHeights = true
+    }
+    found = measureCharInner(cm, prepared, ch, bias)
+    if (!found.bogus) { prepared.cache[key] = found }
+  }
+  return {left: found.left, right: found.right,
+          top: varHeight ? found.rtop : found.top,
+          bottom: varHeight ? found.rbottom : found.bottom}
+}
+
+var nullRect = {left: 0, right: 0, top: 0, bottom: 0}
+
+function nodeAndOffsetInLineMap(map, ch, bias) {
+  var node, start, end, collapse, mStart, mEnd
+  // First, search the line map for the text node corresponding to,
+  // or closest to, the target character.
+  for (var i = 0; i < map.length; i += 3) {
+    mStart = map[i]
+    mEnd = map[i + 1]
+    if (ch < mStart) {
+      start = 0; end = 1
+      collapse = "left"
+    } else if (ch < mEnd) {
+      start = ch - mStart
+      end = start + 1
+    } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {
+      end = mEnd - mStart
+      start = end - 1
+      if (ch >= mEnd) { collapse = "right" }
+    }
+    if (start != null) {
+      node = map[i + 2]
+      if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
+        { collapse = bias }
+      if (bias == "left" && start == 0)
+        { while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
+          node = map[(i -= 3) + 2]
+          collapse = "left"
+        } }
+      if (bias == "right" && start == mEnd - mStart)
+        { while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {
+          node = map[(i += 3) + 2]
+          collapse = "right"
+        } }
+      break
+    }
+  }
+  return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd}
+}
+
+function getUsefulRect(rects, bias) {
+  var rect = nullRect
+  if (bias == "left") { for (var i = 0; i < rects.length; i++) {
+    if ((rect = rects[i]).left != rect.right) { break }
+  } } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) {
+    if ((rect = rects[i$1]).left != rect.right) { break }
+  } }
+  return rect
+}
+
+function measureCharInner(cm, prepared, ch, bias) {
+  var place = nodeAndOffsetInLineMap(prepared.map, ch, bias)
+  var node = place.node, start = place.start, end = place.end, collapse = place.collapse
+
+  var rect
+  if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
+    for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned
+      while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start }
+      while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end }
+      if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart)
+        { rect = node.parentNode.getBoundingClientRect() }
+      else
+        { rect = getUsefulRect(range(node, start, end).getClientRects(), bias) }
+      if (rect.left || rect.right || start == 0) { break }
+      end = start
+      start = start - 1
+      collapse = "right"
+    }
+    if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect) }
+  } else { // If it is a widget, simply get the box for the whole widget.
+    if (start > 0) { collapse = bias = "right" }
+    var rects
+    if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
+      { rect = rects[bias == "right" ? rects.length - 1 : 0] }
+    else
+      { rect = node.getBoundingClientRect() }
+  }
+  if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
+    var rSpan = node.parentNode.getClientRects()[0]
+    if (rSpan)
+      { rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom} }
+    else
+      { rect = nullRect }
+  }
+
+  var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top
+  var mid = (rtop + rbot) / 2
+  var heights = prepared.view.measure.heights
+  var i = 0
+  for (; i < heights.length - 1; i++)
+    { if (mid < heights[i]) { break } }
+  var top = i ? heights[i - 1] : 0, bot = heights[i]
+  var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
+                right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
+                top: top, bottom: bot}
+  if (!rect.left && !rect.right) { result.bogus = true }
+  if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot }
+
+  return result
+}
+
+// Work around problem with bounding client rects on ranges being
+// returned incorrectly when zoomed on IE10 and below.
+function maybeUpdateRectForZooming(measure, rect) {
+  if (!window.screen || screen.logicalXDPI == null ||
+      screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
+    { return rect }
+  var scaleX = screen.logicalXDPI / screen.deviceXDPI
+  var scaleY = screen.logicalYDPI / screen.deviceYDPI
+  return {left: rect.left * scaleX, right: rect.right * scaleX,
+          top: rect.top * scaleY, bottom: rect.bottom * scaleY}
+}
+
+function clearLineMeasurementCacheFor(lineView) {
+  if (lineView.measure) {
+    lineView.measure.cache = {}
+    lineView.measure.heights = null
+    if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++)
+      { lineView.measure.caches[i] = {} } }
+  }
+}
+
+function clearLineMeasurementCache(cm) {
+  cm.display.externalMeasure = null
+  removeChildren(cm.display.lineMeasure)
+  for (var i = 0; i < cm.display.view.length; i++)
+    { clearLineMeasurementCacheFor(cm.display.view[i]) }
+}
+
+function clearCaches(cm) {
+  clearLineMeasurementCache(cm)
+  cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null
+  if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true }
+  cm.display.lineNumChars = null
+}
+
+function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft }
+function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop }
+
+// Converts a {top, bottom, left, right} box from line-local
+// coordinates into another coordinate system. Context may be one of
+// "line", "div" (display.lineDiv), "local"./null (editor), "window",
+// or "page".
+function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) {
+  if (!includeWidgets && lineObj.widgets) { for (var i = 0; i < lineObj.widgets.length; ++i) { if (lineObj.widgets[i].above) {
+    var size = widgetHeight(lineObj.widgets[i])
+    rect.top += size; rect.bottom += size
+  } } }
+  if (context == "line") { return rect }
+  if (!context) { context = "local" }
+  var yOff = heightAtLine(lineObj)
+  if (context == "local") { yOff += paddingTop(cm.display) }
+  else { yOff -= cm.display.viewOffset }
+  if (context == "page" || context == "window") {
+    var lOff = cm.display.lineSpace.getBoundingClientRect()
+    yOff += lOff.top + (context == "window" ? 0 : pageScrollY())
+    var xOff = lOff.left + (context == "window" ? 0 : pageScrollX())
+    rect.left += xOff; rect.right += xOff
+  }
+  rect.top += yOff; rect.bottom += yOff
+  return rect
+}
+
+// Coverts a box from "div" coords to another coordinate system.
+// Context may be "window", "page", "div", or "local"./null.
+function fromCoordSystem(cm, coords, context) {
+  if (context == "div") { return coords }
+  var left = coords.left, top = coords.top
+  // First move into "page" coordinate system
+  if (context == "page") {
+    left -= pageScrollX()
+    top -= pageScrollY()
+  } else if (context == "local" || !context) {
+    var localBox = cm.display.sizer.getBoundingClientRect()
+    left += localBox.left
+    top += localBox.top
+  }
+
+  var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect()
+  return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}
+}
+
+function charCoords(cm, pos, context, lineObj, bias) {
+  if (!lineObj) { lineObj = getLine(cm.doc, pos.line) }
+  return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context)
+}
+
+// Returns a box for a given cursor position, which may have an
+// 'other' property containing the position of the secondary cursor
+// on a bidi boundary.
+// A cursor Pos(line, char, "before") is on the same visual line as `char - 1`
+// and after `char - 1` in writing order of `char - 1`
+// A cursor Pos(line, char, "after") is on the same visual line as `char`
+// and before `char` in writing order of `char`
+// Examples (upper-case letters are RTL, lower-case are LTR):
+//     Pos(0, 1, ...)
+//     before   after
+// ab     a|b     a|b
+// aB     a|B     aB|
+// Ab     |Ab     A|b
+// AB     B|A     B|A
+// Every position after the last character on a line is considered to stick
+// to the last character on the line.
+function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
+  lineObj = lineObj || getLine(cm.doc, pos.line)
+  if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj) }
+  function get(ch, right) {
+    var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight)
+    if (right) { m.left = m.right; } else { m.right = m.left }
+    return intoCoordSystem(cm, lineObj, m, context)
+  }
+  var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky
+  if (ch >= lineObj.text.length) {
+    ch = lineObj.text.length
+    sticky = "before"
+  } else if (ch <= 0) {
+    ch = 0
+    sticky = "after"
+  }
+  if (!order) { return get(sticky == "before" ? ch - 1 : ch, sticky == "before") }
+
+  function getBidi(ch, partPos, invert) {
+    var part = order[partPos], right = (part.level % 2) != 0
+    return get(invert ? ch - 1 : ch, right != invert)
+  }
+  var partPos = getBidiPartAt(order, ch, sticky)
+  var other = bidiOther
+  var val = getBidi(ch, partPos, sticky == "before")
+  if (other != null) { val.other = getBidi(ch, other, sticky != "before") }
+  return val
+}
+
+// Used to cheaply estimate the coordinates for a position. Used for
+// intermediate scroll updates.
+function estimateCoords(cm, pos) {
+  var left = 0
+  pos = clipPos(cm.doc, pos)
+  if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch }
+  var lineObj = getLine(cm.doc, pos.line)
+  var top = heightAtLine(lineObj) + paddingTop(cm.display)
+  return {left: left, right: left, top: top, bottom: top + lineObj.height}
+}
+
+// Positions returned by coordsChar contain some extra information.
+// xRel is the relative x position of the input coordinates compared
+// to the found position (so xRel > 0 means the coordinates are to
+// the right of the character position, for example). When outside
+// is true, that means the coordinates lie outside the line's
+// vertical range.
+function PosWithInfo(line, ch, sticky, outside, xRel) {
+  var pos = Pos(line, ch, sticky)
+  pos.xRel = xRel
+  if (outside) { pos.outside = true }
+  return pos
+}
+
+// Compute the character position closest to the given coordinates.
+// Input must be lineSpace-local ("div" coordinate system).
+function coordsChar(cm, x, y) {
+  var doc = cm.doc
+  y += cm.display.viewOffset
+  if (y < 0) { return PosWithInfo(doc.first, 0, null, true, -1) }
+  var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1
+  if (lineN > last)
+    { return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, true, 1) }
+  if (x < 0) { x = 0 }
+
+  var lineObj = getLine(doc, lineN)
+  for (;;) {
+    var found = coordsCharInner(cm, lineObj, lineN, x, y)
+    var merged = collapsedSpanAtEnd(lineObj)
+    var mergedPos = merged && merged.find(0, true)
+    if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0))
+      { lineN = lineNo(lineObj = mergedPos.to.line) }
+    else
+      { return found }
+  }
+}
+
+function wrappedLineExtent(cm, lineObj, preparedMeasure, y) {
+  var measure = function (ch) { return intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, ch), "line"); }
+  var end = lineObj.text.length
+  var begin = findFirst(function (ch) { return measure(ch - 1).bottom <= y; }, end, 0)
+  end = findFirst(function (ch) { return measure(ch).top > y; }, begin, end)
+  return {begin: begin, end: end}
+}
+
+function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) {
+  var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), "line").top
+  return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop)
+}
+
+function coordsCharInner(cm, lineObj, lineNo, x, y) {
+  y -= heightAtLine(lineObj)
+  var begin = 0, end = lineObj.text.length
+  var preparedMeasure = prepareMeasureForLine(cm, lineObj)
+  var pos
+  var order = getOrder(lineObj, cm.doc.direction)
+  if (order) {
+    if (cm.options.lineWrapping) {
+      ;var assign;
+      ((assign = wrappedLineExtent(cm, lineObj, preparedMeasure, y), begin = assign.begin, end = assign.end, assign))
+    }
+    pos = new Pos(lineNo, begin)
+    var beginLeft = cursorCoords(cm, pos, "line", lineObj, preparedMeasure).left
+    var dir = beginLeft < x ? 1 : -1
+    var prevDiff, diff = beginLeft - x, prevPos
+    do {
+      prevDiff = diff
+      prevPos = pos
+      pos = moveVisually(cm, lineObj, pos, dir)
+      if (pos == null || pos.ch < begin || end <= (pos.sticky == "before" ? pos.ch - 1 : pos.ch)) {
+        pos = prevPos
+        break
+      }
+      diff = cursorCoords(cm, pos, "line", lineObj, preparedMeasure).left - x
+    } while ((dir < 0) != (diff < 0) && (Math.abs(diff) <= Math.abs(prevDiff)))
+    if (Math.abs(diff) > Math.abs(prevDiff)) {
+      if ((diff < 0) == (prevDiff < 0)) { throw new Error("Broke out of infinite loop in coordsCharInner") }
+      pos = prevPos
+    }
+  } else {
+    var ch = findFirst(function (ch) {
+      var box = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, ch), "line")
+      if (box.top > y) {
+        // For the cursor stickiness
+        end = Math.min(ch, end)
+        return true
+      }
+      else if (box.bottom <= y) { return false }
+      else if (box.left > x) { return true }
+      else if (box.right < x) { return false }
+      else { return (x - box.left < box.right - x) }
+    }, begin, end)
+    ch = skipExtendingChars(lineObj.text, ch, 1)
+    pos = new Pos(lineNo, ch, ch == end ? "before" : "after")
+  }
+  var coords = cursorCoords(cm, pos, "line", lineObj, preparedMeasure)
+  if (y < coords.top || coords.bottom < y) { pos.outside = true }
+  pos.xRel = x < coords.left ? -1 : (x > coords.right ? 1 : 0)
+  return pos
+}
+
+var measureText
+// Compute the default text height.
+function textHeight(display) {
+  if (display.cachedTextHeight != null) { return display.cachedTextHeight }
+  if (measureText == null) {
+    measureText = elt("pre")
+    // Measure a bunch of lines, for browsers that compute
+    // fractional heights.
+    for (var i = 0; i < 49; ++i) {
+      measureText.appendChild(document.createTextNode("x"))
+      measureText.appendChild(elt("br"))
+    }
+    measureText.appendChild(document.createTextNode("x"))
+  }
+  removeChildrenAndAdd(display.measure, measureText)
+  var height = measureText.offsetHeight / 50
+  if (height > 3) { display.cachedTextHeight = height }
+  removeChildren(display.measure)
+  return height || 1
+}
+
+// Compute the default character width.
+function charWidth(display) {
+  if (display.cachedCharWidth != null) { return display.cachedCharWidth }
+  var anchor = elt("span", "xxxxxxxxxx")
+  var pre = elt("pre", [anchor])
+  removeChildrenAndAdd(display.measure, pre)
+  var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10
+  if (width > 2) { display.cachedCharWidth = width }
+  return width || 10
+}
+
+// Do a bulk-read of the DOM positions and sizes needed to draw the
+// view, so that we don't interleave reading and writing to the DOM.
+function getDimensions(cm) {
+  var d = cm.display, left = {}, width = {}
+  var gutterLeft = d.gutters.clientLeft
+  for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
+    left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft
+    width[cm.options.gutters[i]] = n.clientWidth
+  }
+  return {fixedPos: compensateForHScroll(d),
+          gutterTotalWidth: d.gutters.offsetWidth,
+          gutterLeft: left,
+          gutterWidth: width,
+          wrapperWidth: d.wrapper.clientWidth}
+}
+
+// Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
+// but using getBoundingClientRect to get a sub-pixel-accurate
+// result.
+function compensateForHScroll(display) {
+  return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left
+}
+
+// Returns a function that estimates the height of a line, to use as
+// first approximation until the line becomes visible (and is thus
+// properly measurable).
+function estimateHeight(cm) {
+  var th = textHeight(cm.display), wrapping = cm.options.lineWrapping
+  var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3)
+  return function (line) {
+    if (lineIsHidden(cm.doc, line)) { return 0 }
+
+    var widgetsHeight = 0
+    if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) {
+      if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height }
+    } }
+
+    if (wrapping)
+      { return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th }
+    else
+      { return widgetsHeight + th }
+  }
+}
+
+function estimateLineHeights(cm) {
+  var doc = cm.doc, est = estimateHeight(cm)
+  doc.iter(function (line) {
+    var estHeight = est(line)
+    if (estHeight != line.height) { updateLineHeight(line, estHeight) }
+  })
+}
+
+// Given a mouse event, find the corresponding position. If liberal
+// is false, it checks whether a gutter or scrollbar was clicked,
+// and returns null if it was. forRect is used by rectangular
+// selections, and tries to estimate a character position even for
+// coordinates beyond the right of the text.
+function posFromMouse(cm, e, liberal, forRect) {
+  var display = cm.display
+  if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") { return null }
+
+  var x, y, space = display.lineSpace.getBoundingClientRect()
+  // Fails unpredictably on IE[67] when mouse is dragged around quickly.
+  try { x = e.clientX - space.left; y = e.clientY - space.top }
+  catch (e) { return null }
+  var coords = coordsChar(cm, x, y), line
+  if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
+    var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length
+    coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff))
+  }
+  return coords
+}
+
+// Find the view element corresponding to a given line. Return null
+// when the line isn't visible.
+function findViewIndex(cm, n) {
+  if (n >= cm.display.viewTo) { return null }
+  n -= cm.display.viewFrom
+  if (n < 0) { return null }
+  var view = cm.display.view
+  for (var i = 0; i < view.length; i++) {
+    n -= view[i].size
+    if (n < 0) { return i }
+  }
+}
+
+function updateSelection(cm) {
+  cm.display.input.showSelection(cm.display.input.prepareSelection())
+}
+
+function prepareSelection(cm, primary) {
+  var doc = cm.doc, result = {}
+  var curFragment = result.cursors = document.createDocumentFragment()
+  var selFragment = result.selection = document.createDocumentFragment()
+
+  for (var i = 0; i < doc.sel.ranges.length; i++) {
+    if (primary === false && i == doc.sel.primIndex) { continue }
+    var range = doc.sel.ranges[i]
+    if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) { continue }
+    var collapsed = range.empty()
+    if (collapsed || cm.options.showCursorWhenSelecting)
+      { drawSelectionCursor(cm, range.head, curFragment) }
+    if (!collapsed)
+      { drawSelectionRange(cm, range, selFragment) }
+  }
+  return result
+}
+
+// Draws a cursor for the given range
+function drawSelectionCursor(cm, head, output) {
+  var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine)
+
+  var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"))
+  cursor.style.left = pos.left + "px"
+  cursor.style.top = pos.top + "px"
+  cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px"
+
+  if (pos.other) {
+    // Secondary cursor, shown when on a 'jump' in bi-directional text
+    var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"))
+    otherCursor.style.display = ""
+    otherCursor.style.left = pos.other.left + "px"
+    otherCursor.style.top = pos.other.top + "px"
+    otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px"
+  }
+}
+
+// Draws the given range as a highlighted selection
+function drawSelectionRange(cm, range, output) {
+  var display = cm.display, doc = cm.doc
+  var fragment = document.createDocumentFragment()
+  var padding = paddingH(cm.display), leftSide = padding.left
+  var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right
+
+  function add(left, top, width, bottom) {
+    if (top < 0) { top = 0 }
+    top = Math.round(top)
+    bottom = Math.round(bottom)
+    fragment.appendChild(elt("div", null, "CodeMirror-selected", ("position: absolute; left: " + left + "px;\n                             top: " + top + "px; width: " + (width == null ? rightSide - left : width) + "px;\n                             height: " + (bottom - top) + "px")))
+  }
+
+  function drawForLine(line, fromArg, toArg) {
+    var lineObj = getLine(doc, line)
+    var lineLen = lineObj.text.length
+    var start, end
+    function coords(ch, bias) {
+      return charCoords(cm, Pos(line, ch), "div", lineObj, bias)
+    }
+
+    iterateBidiSections(getOrder(lineObj, doc.direction), fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir) {
+      var leftPos = coords(from, "left"), rightPos, left, right
+      if (from == to) {
+        rightPos = leftPos
+        left = right = leftPos.left
+      } else {
+        rightPos = coords(to - 1, "right")
+        if (dir == "rtl") { var tmp = leftPos; leftPos = rightPos; rightPos = tmp }
+        left = leftPos.left
+        right = rightPos.right
+      }
+      if (fromArg == null && from == 0) { left = leftSide }
+      if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part
+        add(left, leftPos.top, null, leftPos.bottom)
+        left = leftSide
+        if (leftPos.bottom < rightPos.top) { add(left, leftPos.bottom, null, rightPos.top) }
+      }
+      if (toArg == null && to == lineLen) { right = rightSide }
+      if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left)
+        { start = leftPos }
+      if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right)
+        { end = rightPos }
+      if (left < leftSide + 1) { left = leftSide }
+      add(left, rightPos.top, right - left, rightPos.bottom)
+    })
+    return {start: start, end: end}
+  }
+
+  var sFrom = range.from(), sTo = range.to()
+  if (sFrom.line == sTo.line) {
+    drawForLine(sFrom.line, sFrom.ch, sTo.ch)
+  } else {
+    var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line)
+    var singleVLine = visualLine(fromLine) == visualLine(toLine)
+    var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end
+    var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start
+    if (singleVLine) {
+      if (leftEnd.top < rightStart.top - 2) {
+        add(leftEnd.right, leftEnd.top, null, leftEnd.bottom)
+        add(leftSide, rightStart.top, rightStart.left, rightStart.bottom)
+      } else {
+        add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom)
+      }
+    }
+    if (leftEnd.bottom < rightStart.top)
+      { add(leftSide, leftEnd.bottom, null, rightStart.top) }
+  }
+
+  output.appendChild(fragment)
+}
+
+// Cursor-blinking
+function restartBlink(cm) {
+  if (!cm.state.focused) { return }
+  var display = cm.display
+  clearInterval(display.blinker)
+  var on = true
+  display.cursorDiv.style.visibility = ""
+  if (cm.options.cursorBlinkRate > 0)
+    { display.blinker = setInterval(function () { return display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden"; },
+      cm.options.cursorBlinkRate) }
+  else if (cm.options.cursorBlinkRate < 0)
+    { display.cursorDiv.style.visibility = "hidden" }
+}
+
+function ensureFocus(cm) {
+  if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm) }
+}
+
+function delayBlurEvent(cm) {
+  cm.state.delayingBlurEvent = true
+  setTimeout(function () { if (cm.state.delayingBlurEvent) {
+    cm.state.delayingBlurEvent = false
+    onBlur(cm)
+  } }, 100)
+}
+
+function onFocus(cm, e) {
+  if (cm.state.delayingBlurEvent) { cm.state.delayingBlurEvent = false }
+
+  if (cm.options.readOnly == "nocursor") { return }
+  if (!cm.state.focused) {
+    signal(cm, "focus", cm, e)
+    cm.state.focused = true
+    addClass(cm.display.wrapper, "CodeMirror-focused")
+    // This test prevents this from firing when a context
+    // menu is closed (since the input reset would kill the
+    // select-all detection hack)
+    if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
+      cm.display.input.reset()
+      if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20) } // Issue #1730
+    }
+    cm.display.input.receivedFocus()
+  }
+  restartBlink(cm)
+}
+function onBlur(cm, e) {
+  if (cm.state.delayingBlurEvent) { return }
+
+  if (cm.state.focused) {
+    signal(cm, "blur", cm, e)
+    cm.state.focused = false
+    rmClass(cm.display.wrapper, "CodeMirror-focused")
+  }
+  clearInterval(cm.display.blinker)
+  setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false } }, 150)
+}
+
+// Re-align line numbers and gutter marks to compensate for
+// horizontal scrolling.
+function alignHorizontally(cm) {
+  var display = cm.display, view = display.view
+  if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return }
+  var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft
+  var gutterW = display.gutters.offsetWidth, left = comp + "px"
+  for (var i = 0; i < view.length; i++) { if (!view[i].hidden) {
+    if (cm.options.fixedGutter) {
+      if (view[i].gutter)
+        { view[i].gutter.style.left = left }
+      if (view[i].gutterBackground)
+        { view[i].gutterBackground.style.left = left }
+    }
+    var align = view[i].alignable
+    if (align) { for (var j = 0; j < align.length; j++)
+      { align[j].style.left = left } }
+  } }
+  if (cm.options.fixedGutter)
+    { display.gutters.style.left = (comp + gutterW) + "px" }
+}
+
+// Used to ensure that the line number gutter is still the right
+// size for the current document size. Returns true when an update
+// is needed.
+function maybeUpdateLineNumberWidth(cm) {
+  if (!cm.options.lineNumbers) { return false }
+  var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display
+  if (last.length != display.lineNumChars) {
+    var test = display.measure.appendChild(elt("div", [elt("div", last)],
+                                               "CodeMirror-linenumber CodeMirror-gutter-elt"))
+    var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW
+    display.lineGutter.style.width = ""
+    display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1
+    display.lineNumWidth = display.lineNumInnerWidth + padding
+    display.lineNumChars = display.lineNumInnerWidth ? last.length : -1
+    display.lineGutter.style.width = display.lineNumWidth + "px"
+    updateGutterSpace(cm)
+    return true
+  }
+  return false
+}
+
+// Read the actual heights of the rendered lines, and update their
+// stored heights to match.
+function updateHeightsInViewport(cm) {
+  var display = cm.display
+  var prevBottom = display.lineDiv.offsetTop
+  for (var i = 0; i < display.view.length; i++) {
+    var cur = display.view[i], height = (void 0)
+    if (cur.hidden) { continue }
+    if (ie && ie_version < 8) {
+      var bot = cur.node.offsetTop + cur.node.offsetHeight
+      height = bot - prevBottom
+      prevBottom = bot
+    } else {
+      var box = cur.node.getBoundingClientRect()
+      height = box.bottom - box.top
+    }
+    var diff = cur.line.height - height
+    if (height < 2) { height = textHeight(display) }
+    if (diff > .001 || diff < -.001) {
+      updateLineHeight(cur.line, height)
+      updateWidgetHeight(cur.line)
+      if (cur.rest) { for (var j = 0; j < cur.rest.length; j++)
+        { updateWidgetHeight(cur.rest[j]) } }
+    }
+  }
+}
+
+// Read and store the height of line widgets associated with the
+// given line.
+function updateWidgetHeight(line) {
+  if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i)
+    { line.widgets[i].height = line.widgets[i].node.parentNode.offsetHeight } }
+}
+
+// Compute the lines that are visible in a given viewport (defaults
+// the the current scroll position). viewport may contain top,
+// height, and ensure (see op.scrollToPos) properties.
+function visibleLines(display, doc, viewport) {
+  var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop
+  top = Math.floor(top - paddingTop(display))
+  var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight
+
+  var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom)
+  // Ensure is a {from: {line, ch}, to: {line, ch}} object, and
+  // forces those lines into the viewport (if possible).
+  if (viewport && viewport.ensure) {
+    var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line
+    if (ensureFrom < from) {
+      from = ensureFrom
+      to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight)
+    } else if (Math.min(ensureTo, doc.lastLine()) >= to) {
+      from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight)
+      to = ensureTo
+    }
+  }
+  return {from: from, to: Math.max(to, from + 1)}
+}
+
+// Sync the scrollable area and scrollbars, ensure the viewport
+// covers the visible area.
+function setScrollTop(cm, val) {
+  if (Math.abs(cm.doc.scrollTop - val) < 2) { return }
+  cm.doc.scrollTop = val
+  if (!gecko) { updateDisplaySimple(cm, {top: val}) }
+  if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val }
+  cm.display.scrollbars.setScrollTop(val)
+  if (gecko) { updateDisplaySimple(cm) }
+  startWorker(cm, 100)
+}
+// Sync scroller and scrollbar, ensure the gutter elements are
+// aligned.
+function setScrollLeft(cm, val, isScroller) {
+  if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) { return }
+  val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth)
+  cm.doc.scrollLeft = val
+  alignHorizontally(cm)
+  if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val }
+  cm.display.scrollbars.setScrollLeft(val)
+}
+
+// Since the delta values reported on mouse wheel events are
+// unstandardized between browsers and even browser versions, and
+// generally horribly unpredictable, this code starts by measuring
+// the scroll effect that the first few mouse wheel events have,
+// and, from that, detects the way it can convert deltas to pixel
+// offsets afterwards.
+//
+// The reason we want to know the amount a wheel event will scroll
+// is that it gives us a chance to update the display before the
+// actual scrolling happens, reducing flickering.
+
+var wheelSamples = 0;
+var wheelPixelsPerUnit = null;
+// Fill in a browser-detected starting value on browsers where we
+// know one. These don't have to be accurate -- the result of them
+// being wrong would just be a slight flicker on the first wheel
+// scroll (if it is large enough).
+if (ie) { wheelPixelsPerUnit = -.53 }
+else if (gecko) { wheelPixelsPerUnit = 15 }
+else if (chrome) { wheelPixelsPerUnit = -.7 }
+else if (safari) { wheelPixelsPerUnit = -1/3 }
+
+function wheelEventDelta(e) {
+  var dx = e.wheelDeltaX, dy = e.wheelDeltaY
+  if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail }
+  if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail }
+  else if (dy == null) { dy = e.wheelDelta }
+  return {x: dx, y: dy}
+}
+function wheelEventPixels(e) {
+  var delta = wheelEventDelta(e)
+  delta.x *= wheelPixelsPerUnit
+  delta.y *= wheelPixelsPerUnit
+  return delta
+}
+
+function onScrollWheel(cm, e) {
+  var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y
+
+  var display = cm.display, scroll = display.scroller
+  // Quit if there's nothing to scroll here
+  var canScrollX = scroll.scrollWidth > scroll.clientWidth
+  var canScrollY = scroll.scrollHeight > scroll.clientHeight
+  if (!(dx && canScrollX || dy && canScrollY)) { return }
+
+  // Webkit browsers on OS X abort momentum scrolls when the target
+  // of the scroll event is removed from the scrollable element.
+  // This hack (see related code in patchDisplay) makes sure the
+  // element is kept around.
+  if (dy && mac && webkit) {
+    outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
+      for (var i = 0; i < view.length; i++) {
+        if (view[i].node == cur) {
+          cm.display.currentWheelTarget = cur
+          break outer
+        }
+      }
+    }
+  }
+
+  // On some browsers, horizontal scrolling will cause redraws to
+  // happen before the gutter has been realigned, causing it to
+  // wriggle around in a most unseemly way. When we have an
+  // estimated pixels/delta value, we just handle horizontal
+  // scrolling entirely here. It'll be slightly off from native, but
+  // better than glitching out.
+  if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {
+    if (dy && canScrollY)
+      { setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight))) }
+    setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth)))
+    // Only prevent default scrolling if vertical scrolling is
+    // actually possible. Otherwise, it causes vertical scroll
+    // jitter on OSX trackpads when deltaX is small and deltaY
+    // is large (issue #3579)
+    if (!dy || (dy && canScrollY))
+      { e_preventDefault(e) }
+    display.wheelStartX = null // Abort measurement, if in progress
+    return
+  }
+
+  // 'Project' the visible viewport to cover the area that is being
+  // scrolled into view (if we know enough to estimate it).
+  if (dy && wheelPixelsPerUnit != null) {
+    var pixels = dy * wheelPixelsPerUnit
+    var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight
+    if (pixels < 0) { top = Math.max(0, top + pixels - 50) }
+    else { bot = Math.min(cm.doc.height, bot + pixels + 50) }
+    updateDisplaySimple(cm, {top: top, bottom: bot})
+  }
+
+  if (wheelSamples < 20) {
+    if (display.wheelStartX == null) {
+      display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop
+      display.wheelDX = dx; display.wheelDY = dy
+      setTimeout(function () {
+        if (display.wheelStartX == null) { return }
+        var movedX = scroll.scrollLeft - display.wheelStartX
+        var movedY = scroll.scrollTop - display.wheelStartY
+        var sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
+          (movedX && display.wheelDX && movedX / display.wheelDX)
+        display.wheelStartX = display.wheelStartY = null
+        if (!sample) { return }
+        wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1)
+        ++wheelSamples
+      }, 200)
+    } else {
+      display.wheelDX += dx; display.wheelDY += dy
+    }
+  }
+}
+
+// SCROLLBARS
+
+// Prepare DOM reads needed to update the scrollbars. Done in one
+// shot to minimize update/measure roundtrips.
+function measureForScrollbars(cm) {
+  var d = cm.display, gutterW = d.gutters.offsetWidth
+  var docH = Math.round(cm.doc.height + paddingVert(cm.display))
+  return {
+    clientHeight: d.scroller.clientHeight,
+    viewHeight: d.wrapper.clientHeight,
+    scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,
+    viewWidth: d.wrapper.clientWidth,
+    barLeft: cm.options.fixedGutter ? gutterW : 0,
+    docHeight: docH,
+    scrollHeight: docH + scrollGap(cm) + d.barHeight,
+    nativeBarWidth: d.nativeBarWidth,
+    gutterWidth: gutterW
+  }
+}
+
+var NativeScrollbars = function(place, scroll, cm) {
+  this.cm = cm
+  var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar")
+  var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar")
+  place(vert); place(horiz)
+
+  on(vert, "scroll", function () {
+    if (vert.clientHeight) { scroll(vert.scrollTop, "vertical") }
+  })
+  on(horiz, "scroll", function () {
+    if (horiz.clientWidth) { scroll(horiz.scrollLeft, "horizontal") }
+  })
+
+  this.checkedZeroWidth = false
+  // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
+  if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = "18px" }
+};
+
+NativeScrollbars.prototype.update = function (measure) {
+  var needsH = measure.scrollWidth > measure.clientWidth + 1
+  var needsV = measure.scrollHeight > measure.clientHeight + 1
+  var sWidth = measure.nativeBarWidth
+
+  if (needsV) {
+    this.vert.style.display = "block"
+    this.vert.style.bottom = needsH ? sWidth + "px" : "0"
+    var totalHeight = measure.viewHeight - (needsH ? sWidth : 0)
+    // A bug in IE8 can cause this value to be negative, so guard it.
+    this.vert.firstChild.style.height =
+      Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px"
+  } else {
+    this.vert.style.display = ""
+    this.vert.firstChild.style.height = "0"
+  }
+
+  if (needsH) {
+    this.horiz.style.display = "block"
+    this.horiz.style.right = needsV ? sWidth + "px" : "0"
+    this.horiz.style.left = measure.barLeft + "px"
+    var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0)
+    this.horiz.firstChild.style.width =
+      Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + "px"
+  } else {
+    this.horiz.style.display = ""
+    this.horiz.firstChild.style.width = "0"
+  }
+
+  if (!this.checkedZeroWidth && measure.clientHeight > 0) {
+    if (sWidth == 0) { this.zeroWidthHack() }
+    this.checkedZeroWidth = true
+  }
+
+  return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0}
+};
+
+NativeScrollbars.prototype.setScrollLeft = function (pos) {
+  if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos }
+  if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz) }
+};
+
+NativeScrollbars.prototype.setScrollTop = function (pos) {
+  if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos }
+  if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert) }
+};
+
+NativeScrollbars.prototype.zeroWidthHack = function () {
+  var w = mac && !mac_geMountainLion ? "12px" : "18px"
+  this.horiz.style.height = this.vert.style.width = w
+  this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none"
+  this.disableHoriz = new Delayed
+  this.disableVert = new Delayed
+};
+
+NativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay) {
+  bar.style.pointerEvents = "auto"
+  function maybeDisable() {
+    // To find out whether the scrollbar is still visible, we
+    // check whether the element under the pixel in the bottom
+    // left corner of the scrollbar box is the scrollbar box
+    // itself (when the bar is still visible) or its filler child
+    // (when the bar is hidden). If it is still visible, we keep
+    // it enabled, if it's hidden, we disable pointer events.
+    var box = bar.getBoundingClientRect()
+    var elt = document.elementFromPoint(box.left + 1, box.bottom - 1)
+    if (elt != bar) { bar.style.pointerEvents = "none" }
+    else { delay.set(1000, maybeDisable) }
+  }
+  delay.set(1000, maybeDisable)
+};
+
+NativeScrollbars.prototype.clear = function () {
+  var parent = this.horiz.parentNode
+  parent.removeChild(this.horiz)
+  parent.removeChild(this.vert)
+};
+
+var NullScrollbars = function () {};
+
+NullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} };
+NullScrollbars.prototype.setScrollLeft = function () {};
+NullScrollbars.prototype.setScrollTop = function () {};
+NullScrollbars.prototype.clear = function () {};
+
+function updateScrollbars(cm, measure) {
+  if (!measure) { measure = measureForScrollbars(cm) }
+  var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight
+  updateScrollbarsInner(cm, measure)
+  for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {
+    if (startWidth != cm.display.barWidth && cm.options.lineWrapping)
+      { updateHeightsInViewport(cm) }
+    updateScrollbarsInner(cm, measureForScrollbars(cm))
+    startWidth = cm.display.barWidth; startHeight = cm.display.barHeight
+  }
+}
+
+// Re-synchronize the fake scrollbars with the actual size of the
+// content.
+function updateScrollbarsInner(cm, measure) {
+  var d = cm.display
+  var sizes = d.scrollbars.update(measure)
+
+  d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px"
+  d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px"
+  d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent"
+
+  if (sizes.right && sizes.bottom) {
+    d.scrollbarFiller.style.display = "block"
+    d.scrollbarFiller.style.height = sizes.bottom + "px"
+    d.scrollbarFiller.style.width = sizes.right + "px"
+  } else { d.scrollbarFiller.style.display = "" }
+  if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
+    d.gutterFiller.style.display = "block"
+    d.gutterFiller.style.height = sizes.bottom + "px"
+    d.gutterFiller.style.width = measure.gutterWidth + "px"
+  } else { d.gutterFiller.style.display = "" }
+}
+
+var scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars}
+
+function initScrollbars(cm) {
+  if (cm.display.scrollbars) {
+    cm.display.scrollbars.clear()
+    if (cm.display.scrollbars.addClass)
+      { rmClass(cm.display.wrapper, cm.display.scrollbars.addClass) }
+  }
+
+  cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) {
+    cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller)
+    // Prevent clicks in the scrollbars from killing focus
+    on(node, "mousedown", function () {
+      if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0) }
+    })
+    node.setAttribute("cm-not-content", "true")
+  }, function (pos, axis) {
+    if (axis == "horizontal") { setScrollLeft(cm, pos) }
+    else { setScrollTop(cm, pos) }
+  }, cm)
+  if (cm.display.scrollbars.addClass)
+    { addClass(cm.display.wrapper, cm.display.scrollbars.addClass) }
+}
+
+// SCROLLING THINGS INTO VIEW
+
+// If an editor sits on the top or bottom of the window, partially
+// scrolled out of view, this ensures that the cursor is visible.
+function maybeScrollWindow(cm, rect) {
+  if (signalDOMEvent(cm, "scrollCursorIntoView")) { return }
+
+  var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null
+  if (rect.top + box.top < 0) { doScroll = true }
+  else if (rect.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) { doScroll = false }
+  if (doScroll != null && !phantom) {
+    var scrollNode = elt("div", "\u200b", null, ("position: absolute;\n                         top: " + (rect.top - display.viewOffset - paddingTop(cm.display)) + "px;\n                         height: " + (rect.bottom - rect.top + scrollGap(cm) + display.barHeight) + "px;\n                         left: " + (rect.left) + "px; width: " + (Math.max(2, rect.right - rect.left)) + "px;"))
+    cm.display.lineSpace.appendChild(scrollNode)
+    scrollNode.scrollIntoView(doScroll)
+    cm.display.lineSpace.removeChild(scrollNode)
+  }
+}
+
+// Scroll a given position into view (immediately), verifying that
+// it actually became visible (as line heights are accurately
+// measured, the position of something may 'drift' during drawing).
+function scrollPosIntoView(cm, pos, end, margin) {
+  if (margin == null) { margin = 0 }
+  var rect
+  for (var limit = 0; limit < 5; limit++) {
+    var changed = false
+    var coords = cursorCoords(cm, pos)
+    var endCoords = !end || end == pos ? coords : cursorCoords(cm, end)
+    rect = {left: Math.min(coords.left, endCoords.left),
+            top: Math.min(coords.top, endCoords.top) - margin,
+            right: Math.max(coords.left, endCoords.left),
+            bottom: Math.max(coords.bottom, endCoords.bottom) + margin}
+    var scrollPos = calculateScrollPos(cm, rect)
+    var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft
+    if (scrollPos.scrollTop != null) {
+      setScrollTop(cm, scrollPos.scrollTop)
+      if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true }
+    }
+    if (scrollPos.scrollLeft != null) {
+      setScrollLeft(cm, scrollPos.scrollLeft)
+      if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true }
+    }
+    if (!changed) { break }
+  }
+  return rect
+}
+
+// Scroll a given set of coordinates into view (immediately).
+function scrollIntoView(cm, rect) {
+  var scrollPos = calculateScrollPos(cm, rect)
+  if (scrollPos.scrollTop != null) { setScrollTop(cm, scrollPos.scrollTop) }
+  if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft) }
+}
+
+// Calculate a new scroll position needed to scroll the given
+// rectangle into view. Returns an object with scrollTop and
+// scrollLeft properties. When these are undefined, the
+// vertical/horizontal position does not need to be adjusted.
+function calculateScrollPos(cm, rect) {
+  var display = cm.display, snapMargin = textHeight(cm.display)
+  if (rect.top < 0) { rect.top = 0 }
+  var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop
+  var screen = displayHeight(cm), result = {}
+  if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen }
+  var docBottom = cm.doc.height + paddingVert(display)
+  var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin
+  if (rect.top < screentop) {
+    result.scrollTop = atTop ? 0 : rect.top
+  } else if (rect.bottom > screentop + screen) {
+    var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen)
+    if (newTop != screentop) { result.scrollTop = newTop }
+  }
+
+  var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft
+  var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0)
+  var tooWide = rect.right - rect.left > screenw
+  if (tooWide) { rect.right = rect.left + screenw }
+  if (rect.left < 10)
+    { result.scrollLeft = 0 }
+  else if (rect.left < screenleft)
+    { result.scrollLeft = Math.max(0, rect.left - (tooWide ? 0 : 10)) }
+  else if (rect.right > screenw + screenleft - 3)
+    { result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw }
+  return result
+}
+
+// Store a relative adjustment to the scroll position in the current
+// operation (to be applied when the operation finishes).
+function addToScrollPos(cm, left, top) {
+  if (left != null || top != null) { resolveScrollToPos(cm) }
+  if (left != null)
+    { cm.curOp.scrollLeft = (cm.curOp.scrollLeft == null ? cm.doc.scrollLeft : cm.curOp.scrollLeft) + left }
+  if (top != null)
+    { cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top }
+}
+
+// Make sure that at the end of the operation the current cursor is
+// shown.
+function ensureCursorVisible(cm) {
+  resolveScrollToPos(cm)
+  var cur = cm.getCursor(), from = cur, to = cur
+  if (!cm.options.lineWrapping) {
+    from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur
+    to = Pos(cur.line, cur.ch + 1)
+  }
+  cm.curOp.scrollToPos = {from: from, to: to, margin: cm.options.cursorScrollMargin}
+}
+
+// When an operation has its scrollToPos property set, and another
+// scroll action is applied before the end of the operation, this
+// 'simulates' scrolling that position into view in a cheap way, so
+// that the effect of intermediate scroll commands is not ignored.
+function resolveScrollToPos(cm) {
+  var range = cm.curOp.scrollToPos
+  if (range) {
+    cm.curOp.scrollToPos = null
+    var from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to)
+    var sPos = calculateScrollPos(cm, {
+      left: Math.min(from.left, to.left),
+      top: Math.min(from.top, to.top) - range.margin,
+      right: Math.max(from.right, to.right),
+      bottom: Math.max(from.bottom, to.bottom) + range.margin
+    })
+    cm.scrollTo(sPos.scrollLeft, sPos.scrollTop)
+  }
+}
+
+// Operations are used to wrap a series of changes to the editor
+// state in such a way that each change won't have to update the
+// cursor and display (which would be awkward, slow, and
+// error-prone). Instead, display updates are batched and then all
+// combined and executed at once.
+
+var nextOpId = 0
+// Start a new operation.
+function startOperation(cm) {
+  cm.curOp = {
+    cm: cm,
+    viewChanged: false,      // Flag that indicates that lines might need to be redrawn
+    startHeight: cm.doc.height, // Used to detect need to update scrollbar
+    forceUpdate: false,      // Used to force a redraw
+    updateInput: null,       // Whether to reset the input textarea
+    typing: false,           // Whether this reset should be careful to leave existing text (for compositing)
+    changeObjs: null,        // Accumulated changes, for firing change events
+    cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
+    cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
+    selectionChanged: false, // Whether the selection needs to be redrawn
+    updateMaxLine: false,    // Set when the widest line needs to be determined anew
+    scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
+    scrollToPos: null,       // Used to scroll to a specific position
+    focus: false,
+    id: ++nextOpId           // Unique ID
+  }
+  pushOperation(cm.curOp)
+}
+
+// Finish an operation, updating the display and signalling delayed events
+function endOperation(cm) {
+  var op = cm.curOp
+  finishOperation(op, function (group) {
+    for (var i = 0; i < group.ops.length; i++)
+      { group.ops[i].cm.curOp = null }
+    endOperations(group)
+  })
+}
+
+// The DOM updates done when an operation finishes are batched so
+// that the minimum number of relayouts are required.
+function endOperations(group) {
+  var ops = group.ops
+  for (var i = 0; i < ops.length; i++) // Read DOM
+    { endOperation_R1(ops[i]) }
+  for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe)
+    { endOperation_W1(ops[i$1]) }
+  for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM
+    { endOperation_R2(ops[i$2]) }
+  for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe)
+    { endOperation_W2(ops[i$3]) }
+  for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM
+    { endOperation_finish(ops[i$4]) }
+}
+
+function endOperation_R1(op) {
+  var cm = op.cm, display = cm.display
+  maybeClipScrollbars(cm)
+  if (op.updateMaxLine) { findMaxLine(cm) }
+
+  op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
+    op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
+                       op.scrollToPos.to.line >= display.viewTo) ||
+    display.maxLineChanged && cm.options.lineWrapping
+  op.update = op.mustUpdate &&
+    new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate)
+}
+
+function endOperation_W1(op) {
+  op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update)
+}
+
+function endOperation_R2(op) {
+  var cm = op.cm, display = cm.display
+  if (op.updatedDisplay) { updateHeightsInViewport(cm) }
+
+  op.barMeasure = measureForScrollbars(cm)
+
+  // If the max line changed since it was last measured, measure it,
+  // and ensure the document's width matches it.
+  // updateDisplay_W2 will use these properties to do the actual resizing
+  if (display.maxLineChanged && !cm.options.lineWrapping) {
+    op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3
+    cm.display.sizerWidth = op.adjustWidthTo
+    op.barMeasure.scrollWidth =
+      Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth)
+    op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm))
+  }
+
+  if (op.updatedDisplay || op.selectionChanged)
+    { op.preparedSelection = display.input.prepareSelection(op.focus) }
+}
+
+function endOperation_W2(op) {
+  var cm = op.cm
+
+  if (op.adjustWidthTo != null) {
+    cm.display.sizer.style.minWidth = op.adjustWidthTo + "px"
+    if (op.maxScrollLeft < cm.doc.scrollLeft)
+      { setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true) }
+    cm.display.maxLineChanged = false
+  }
+
+  var takeFocus = op.focus && op.focus == activeElt() && (!document.hasFocus || document.hasFocus())
+  if (op.preparedSelection)
+    { cm.display.input.showSelection(op.preparedSelection, takeFocus) }
+  if (op.updatedDisplay || op.startHeight != cm.doc.height)
+    { updateScrollbars(cm, op.barMeasure) }
+  if (op.updatedDisplay)
+    { setDocumentHeight(cm, op.barMeasure) }
+
+  if (op.selectionChanged) { restartBlink(cm) }
+
+  if (cm.state.focused && op.updateInput)
+    { cm.display.input.reset(op.typing) }
+  if (takeFocus) { ensureFocus(op.cm) }
+}
+
+function endOperation_finish(op) {
+  var cm = op.cm, display = cm.display, doc = cm.doc
+
+  if (op.updatedDisplay) { postUpdateDisplay(cm, op.update) }
+
+  // Abort mouse wheel delta measurement, when scrolling explicitly
+  if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
+    { display.wheelStartX = display.wheelStartY = null }
+
+  // Propagate the scroll position to the actual DOM scroller
+  if (op.scrollTop != null && (display.scroller.scrollTop != op.scrollTop || op.forceScroll)) {
+    doc.scrollTop = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, op.scrollTop))
+    display.scrollbars.setScrollTop(doc.scrollTop)
+    display.scroller.scrollTop = doc.scrollTop
+  }
+  if (op.scrollLeft != null && (display.scroller.scrollLeft != op.scrollLeft || op.forceScroll)) {
+    doc.scrollLeft = Math.max(0, Math.min(display.scroller.scrollWidth - display.scroller.clientWidth, op.scrollLeft))
+    display.scrollbars.setScrollLeft(doc.scrollLeft)
+    display.scroller.scrollLeft = doc.scrollLeft
+    alignHorizontally(cm)
+  }
+  // If we need to scroll a specific position into view, do so.
+  if (op.scrollToPos) {
+    var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
+                                 clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin)
+    maybeScrollWindow(cm, rect)
+  }
+
+  // Fire events for markers that are hidden/unidden by editing or
+  // undoing
+  var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers
+  if (hidden) { for (var i = 0; i < hidden.length; ++i)
+    { if (!hidden[i].lines.length) { signal(hidden[i], "hide") } } }
+  if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1)
+    { if (unhidden[i$1].lines.length) { signal(unhidden[i$1], "unhide") } } }
+
+  if (display.wrapper.offsetHeight)
+    { doc.scrollTop = cm.display.scroller.scrollTop }
+
+  // Fire change events, and delayed event handlers
+  if (op.changeObjs)
+    { signal(cm, "changes", cm, op.changeObjs) }
+  if (op.update)
+    { op.update.finish() }
+}
+
+// Run the given function in an operation
+function runInOp(cm, f) {
+  if (cm.curOp) { return f() }
+  startOperation(cm)
+  try { return f() }
+  finally { endOperation(cm) }
+}
+// Wraps a function in an operation. Returns the wrapped function.
+function operation(cm, f) {
+  return function() {
+    if (cm.curOp) { return f.apply(cm, arguments) }
+    startOperation(cm)
+    try { return f.apply(cm, arguments) }
+    finally { endOperation(cm) }
+  }
+}
+// Used to add methods to editor and doc instances, wrapping them in
+// operations.
+function methodOp(f) {
+  return function() {
+    if (this.curOp) { return f.apply(this, arguments) }
+    startOperation(this)
+    try { return f.apply(this, arguments) }
+    finally { endOperation(this) }
+  }
+}
+function docMethodOp(f) {
+  return function() {
+    var cm = this.cm
+    if (!cm || cm.curOp) { return f.apply(this, arguments) }
+    startOperation(cm)
+    try { return f.apply(this, arguments) }
+    finally { endOperation(cm) }
+  }
+}
+
+// Updates the display.view data structure for a given change to the
+// document. From and to are in pre-change coordinates. Lendiff is
+// the amount of lines added or subtracted by the change. This is
+// used for changes that span multiple lines, or change the way
+// lines are divided into visual lines. regLineChange (below)
+// registers single-line changes.
+function regChange(cm, from, to, lendiff) {
+  if (from == null) { from = cm.doc.first }
+  if (to == null) { to = cm.doc.first + cm.doc.size }
+  if (!lendiff) { lendiff = 0 }
+
+  var display = cm.display
+  if (lendiff && to < display.viewTo &&
+      (display.updateLineNumbers == null || display.updateLineNumbers > from))
+    { display.updateLineNumbers = from }
+
+  cm.curOp.viewChanged = true
+
+  if (from >= display.viewTo) { // Change after
+    if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
+      { resetView(cm) }
+  } else if (to <= display.viewFrom) { // Change before
+    if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
+      resetView(cm)
+    } else {
+      display.viewFrom += lendiff
+      display.viewTo += lendiff
+    }
+  } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
+    resetView(cm)
+  } else if (from <= display.viewFrom) { // Top overlap
+    var cut = viewCuttingPoint(cm, to, to + lendiff, 1)
+    if (cut) {
+      display.view = display.view.slice(cut.index)
+      display.viewFrom = cut.lineN
+      display.viewTo += lendiff
+    } else {
+      resetView(cm)
+    }
+  } else if (to >= display.viewTo) { // Bottom overlap
+    var cut$1 = viewCuttingPoint(cm, from, from, -1)
+    if (cut$1) {
+      display.view = display.view.slice(0, cut$1.index)
+      display.viewTo = cut$1.lineN
+    } else {
+      resetView(cm)
+    }
+  } else { // Gap in the middle
+    var cutTop = viewCuttingPoint(cm, from, from, -1)
+    var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1)
+    if (cutTop && cutBot) {
+      display.view = display.view.slice(0, cutTop.index)
+        .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
+        .concat(display.view.slice(cutBot.index))
+      display.viewTo += lendiff
+    } else {
+      resetView(cm)
+    }
+  }
+
+  var ext = display.externalMeasured
+  if (ext) {
+    if (to < ext.lineN)
+      { ext.lineN += lendiff }
+    else if (from < ext.lineN + ext.size)
+      { display.externalMeasured = null }
+  }
+}
+
+// Register a change to a single line. Type must be one of "text",
+// "gutter", "class", "widget"
+function regLineChange(cm, line, type) {
+  cm.curOp.viewChanged = true
+  var display = cm.display, ext = cm.display.externalMeasured
+  if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
+    { display.externalMeasured = null }
+
+  if (line < display.viewFrom || line >= display.viewTo) { return }
+  var lineView = display.view[findViewIndex(cm, line)]
+  if (lineView.node == null) { return }
+  var arr = lineView.changes || (lineView.changes = [])
+  if (indexOf(arr, type) == -1) { arr.push(type) }
+}
+
+// Clear the view.
+function resetView(cm) {
+  cm.display.viewFrom = cm.display.viewTo = cm.doc.first
+  cm.display.view = []
+  cm.display.viewOffset = 0
+}
+
+function viewCuttingPoint(cm, oldN, newN, dir) {
+  var index = findViewIndex(cm, oldN), diff, view = cm.display.view
+  if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
+    { return {index: index, lineN: newN} }
+  var n = cm.display.viewFrom
+  for (var i = 0; i < index; i++)
+    { n += view[i].size }
+  if (n != oldN) {
+    if (dir > 0) {
+      if (index == view.length - 1) { return null }
+      diff = (n + view[index].size) - oldN
+      index++
+    } else {
+      diff = n - oldN
+    }
+    oldN += diff; newN += diff
+  }
+  while (visualLineNo(cm.doc, newN) != newN) {
+    if (index == (dir < 0 ? 0 : view.length - 1)) { return null }
+    newN += dir * view[index - (dir < 0 ? 1 : 0)].size
+    index += dir
+  }
+  return {index: index, lineN: newN}
+}
+
+// Force the view to cover a given range, adding empty view element
+// or clipping off existing ones as needed.
+function adjustView(cm, from, to) {
+  var display = cm.display, view = display.view
+  if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
+    display.view = buildViewArray(cm, from, to)
+    display.viewFrom = from
+  } else {
+    if (display.viewFrom > from)
+      { display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view) }
+    else if (display.viewFrom < from)
+      { display.view = display.view.slice(findViewIndex(cm, from)) }
+    display.viewFrom = from
+    if (display.viewTo < to)
+      { display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)) }
+    else if (display.viewTo > to)
+      { display.view = display.view.slice(0, findViewIndex(cm, to)) }
+  }
+  display.viewTo = to
+}
+
+// Count the number of lines in the view whose DOM representation is
+// out of date (or nonexistent).
+function countDirtyView(cm) {
+  var view = cm.display.view, dirty = 0
+  for (var i = 0; i < view.length; i++) {
+    var lineView = view[i]
+    if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty }
+  }
+  return dirty
+}
+
+// HIGHLIGHT WORKER
+
+function startWorker(cm, time) {
+  if (cm.doc.mode.startState && cm.doc.frontier < cm.display.viewTo)
+    { cm.state.highlight.set(time, bind(highlightWorker, cm)) }
+}
+
+function highlightWorker(cm) {
+  var doc = cm.doc
+  if (doc.frontier < doc.first) { doc.frontier = doc.first }
+  if (doc.frontier >= cm.display.viewTo) { return }
+  var end = +new Date + cm.options.workTime
+  var state = copyState(doc.mode, getStateBefore(cm, doc.frontier))
+  var changedLines = []
+
+  doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) {
+    if (doc.frontier >= cm.display.viewFrom) { // Visible
+      var oldStyles = line.styles, tooLong = line.text.length > cm.options.maxHighlightLength
+      var highlighted = highlightLine(cm, line, tooLong ? copyState(doc.mode, state) : state, true)
+      line.styles = highlighted.styles
+      var oldCls = line.styleClasses, newCls = highlighted.classes
+      if (newCls) { line.styleClasses = newCls }
+      else if (oldCls) { line.styleClasses = null }
+      var ischange = !oldStyles || oldStyles.length != line.styles.length ||
+        oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass)
+      for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i] }
+      if (ischange) { changedLines.push(doc.frontier) }
+      line.stateAfter = tooLong ? state : copyState(doc.mode, state)
+    } else {
+      if (line.text.length <= cm.options.maxHighlightLength)
+        { processLine(cm, line.text, state) }
+      line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null
+    }
+    ++doc.frontier
+    if (+new Date > end) {
+      startWorker(cm, cm.options.workDelay)
+      return true
+    }
+  })
+  if (changedLines.length) { runInOp(cm, function () {
+    for (var i = 0; i < changedLines.length; i++)
+      { regLineChange(cm, changedLines[i], "text") }
+  }) }
+}
+
+// DISPLAY DRAWING
+
+var DisplayUpdate = function(cm, viewport, force) {
+  var display = cm.display
+
+  this.viewport = viewport
+  // Store some values that we'll need later (but don't want to force a relayout for)
+  this.visible = visibleLines(display, cm.doc, viewport)
+  this.editorIsHidden = !display.wrapper.offsetWidth
+  this.wrapperHeight = display.wrapper.clientHeight
+  this.wrapperWidth = display.wrapper.clientWidth
+  this.oldDisplayWidth = displayWidth(cm)
+  this.force = force
+  this.dims = getDimensions(cm)
+  this.events = []
+};
+
+DisplayUpdate.prototype.signal = function (emitter, type) {
+  if (hasHandler(emitter, type))
+    { this.events.push(arguments) }
+};
+DisplayUpdate.prototype.finish = function () {
+    var this$1 = this;
+
+  for (var i = 0; i < this.events.length; i++)
+    { signal.apply(null, this$1.events[i]) }
+};
+
+function maybeClipScrollbars(cm) {
+  var display = cm.display
+  if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
+    display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth
+    display.heightForcer.style.height = scrollGap(cm) + "px"
+    display.sizer.style.marginBottom = -display.nativeBarWidth + "px"
+    display.sizer.style.borderRightWidth = scrollGap(cm) + "px"
+    display.scrollbarsClipped = true
+  }
+}
+
+// Does the actual updating of the line display. Bails out
+// (returning false) when there is nothing to be done and forced is
+// false.
+function updateDisplayIfNeeded(cm, update) {
+  var display = cm.display, doc = cm.doc
+
+  if (update.editorIsHidden) {
+    resetView(cm)
+    return false
+  }
+
+  // Bail out if the visible area is already rendered and nothing changed.
+  if (!update.force &&
+      update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
+      (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
+      display.renderedView == display.view && countDirtyView(cm) == 0)
+    { return false }
+
+  if (maybeUpdateLineNumberWidth(cm)) {
+    resetView(cm)
+    update.dims = getDimensions(cm)
+  }
+
+  // Compute a suitable new viewport (from & to)
+  var end = doc.first + doc.size
+  var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first)
+  var to = Math.min(end, update.visible.to + cm.options.viewportMargin)
+  if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom) }
+  if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo) }
+  if (sawCollapsedSpans) {
+    from = visualLineNo(cm.doc, from)
+    to = visualLineEndNo(cm.doc, to)
+  }
+
+  var different = from != display.viewFrom || to != display.viewTo ||
+    display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth
+  adjustView(cm, from, to)
+
+  display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom))
+  // Position the mover div to align with the current scroll position
+  cm.display.mover.style.top = display.viewOffset + "px"
+
+  var toUpdate = countDirtyView(cm)
+  if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
+      (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
+    { return false }
+
+  // For big changes, we hide the enclosing element during the
+  // update, since that speeds up the operations on most browsers.
+  var focused = activeElt()
+  if (toUpdate > 4) { display.lineDiv.style.display = "none" }
+  patchDisplay(cm, display.updateLineNumbers, update.dims)
+  if (toUpdate > 4) { display.lineDiv.style.display = "" }
+  display.renderedView = display.view
+  // There might have been a widget with a focused element that got
+  // hidden or updated, if so re-focus it.
+  if (focused && activeElt() != focused && focused.offsetHeight) { focused.focus() }
+
+  // Prevent selection and cursors from interfering with the scroll
+  // width and height.
+  removeChildren(display.cursorDiv)
+  removeChildren(display.selectionDiv)
+  display.gutters.style.height = display.sizer.style.minHeight = 0
+
+  if (different) {
+    display.lastWrapHeight = update.wrapperHeight
+    display.lastWrapWidth = update.wrapperWidth
+    startWorker(cm, 400)
+  }
+
+  display.updateLineNumbers = null
+
+  return true
+}
+
+function postUpdateDisplay(cm, update) {
+  var viewport = update.viewport
+
+  for (var first = true;; first = false) {
+    if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
+      // Clip forced viewport to actual scrollable area.
+      if (viewport && viewport.top != null)
+        { viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)} }
+      // Updated line heights might result in the drawn area not
+      // actually covering the viewport. Keep looping until it does.
+      update.visible = visibleLines(cm.display, cm.doc, viewport)
+      if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
+        { break }
+    }
+    if (!updateDisplayIfNeeded(cm, update)) { break }
+    updateHeightsInViewport(cm)
+    var barMeasure = measureForScrollbars(cm)
+    updateSelection(cm)
+    updateScrollbars(cm, barMeasure)
+    setDocumentHeight(cm, barMeasure)
+  }
+
+  update.signal(cm, "update", cm)
+  if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
+    update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo)
+    cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo
+  }
+}
+
+function updateDisplaySimple(cm, viewport) {
+  var update = new DisplayUpdate(cm, viewport)
+  if (updateDisplayIfNeeded(cm, update)) {
+    updateHeightsInViewport(cm)
+    postUpdateDisplay(cm, update)
+    var barMeasure = measureForScrollbars(cm)
+    updateSelection(cm)
+    updateScrollbars(cm, barMeasure)
+    setDocumentHeight(cm, barMeasure)
+    update.finish()
+  }
+}
+
+// Sync the actual display DOM structure with display.view, removing
+// nodes for lines that are no longer in view, and creating the ones
+// that are not there yet, and updating the ones that are out of
+// date.
+function patchDisplay(cm, updateNumbersFrom, dims) {
+  var display = cm.display, lineNumbers = cm.options.lineNumbers
+  var container = display.lineDiv, cur = container.firstChild
+
+  function rm(node) {
+    var next = node.nextSibling
+    // Works around a throw-scroll bug in OS X Webkit
+    if (webkit && mac && cm.display.currentWheelTarget == node)
+      { node.style.display = "none" }
+    else
+      { node.parentNode.removeChild(node) }
+    return next
+  }
+
+  var view = display.view, lineN = display.viewFrom
+  // Loop over the elements in the view, syncing cur (the DOM nodes
+  // in display.lineDiv) with the view as we go.
+  for (var i = 0; i < view.length; i++) {
+    var lineView = view[i]
+    if (lineView.hidden) {
+    } else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet
+      var node = buildLineElement(cm, lineView, lineN, dims)
+      container.insertBefore(node, cur)
+    } else { // Already drawn
+      while (cur != lineView.node) { cur = rm(cur) }
+      var updateNumber = lineNumbers && updateNumbersFrom != null &&
+        updateNumbersFrom <= lineN && lineView.lineNumber
+      if (lineView.changes) {
+        if (indexOf(lineView.changes, "gutter") > -1) { updateNumber = false }
+        updateLineForChanges(cm, lineView, lineN, dims)
+      }
+      if (updateNumber) {
+        removeChildren(lineView.lineNumber)
+        lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)))
+      }
+      cur = lineView.node.nextSibling
+    }
+    lineN += lineView.size
+  }
+  while (cur) { cur = rm(cur) }
+}
+
+function updateGutterSpace(cm) {
+  var width = cm.display.gutters.offsetWidth
+  cm.display.sizer.style.marginLeft = width + "px"
+}
+
+function setDocumentHeight(cm, measure) {
+  cm.display.sizer.style.minHeight = measure.docHeight + "px"
+  cm.display.heightForcer.style.top = measure.docHeight + "px"
+  cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px"
+}
+
+// Rebuild the gutter elements, ensure the margin to the left of the
+// code matches their width.
+function updateGutters(cm) {
+  var gutters = cm.display.gutters, specs = cm.options.gutters
+  removeChildren(gutters)
+  var i = 0
+  for (; i < specs.length; ++i) {
+    var gutterClass = specs[i]
+    var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass))
+    if (gutterClass == "CodeMirror-linenumbers") {
+      cm.display.lineGutter = gElt
+      gElt.style.width = (cm.display.lineNumWidth || 1) + "px"
+    }
+  }
+  gutters.style.display = i ? "" : "none"
+  updateGutterSpace(cm)
+}
+
+// Make sure the gutters options contains the element
+// "CodeMirror-linenumbers" when the lineNumbers option is true.
+function setGuttersForLineNumbers(options) {
+  var found = indexOf(options.gutters, "CodeMirror-linenumbers")
+  if (found == -1 && options.lineNumbers) {
+    options.gutters = options.gutters.concat(["CodeMirror-linenumbers"])
+  } else if (found > -1 && !options.lineNumbers) {
+    options.gutters = options.gutters.slice(0)
+    options.gutters.splice(found, 1)
+  }
+}
+
+// Selection objects are immutable. A new one is created every time
+// the selection changes. A selection is one or more non-overlapping
+// (and non-touching) ranges, sorted, and an integer that indicates
+// which one is the primary selection (the one that's scrolled into
+// view, that getCursor returns, etc).
+var Selection = function(ranges, primIndex) {
+  this.ranges = ranges
+  this.primIndex = primIndex
+};
+
+Selection.prototype.primary = function () { return this.ranges[this.primIndex] };
+
+Selection.prototype.equals = function (other) {
+    var this$1 = this;
+
+  if (other == this) { return true }
+  if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false }
+  for (var i = 0; i < this.ranges.length; i++) {
+    var here = this$1.ranges[i], there = other.ranges[i]
+    if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false }
+  }
+  return true
+};
+
+Selection.prototype.deepCopy = function () {
+    var this$1 = this;
+
+  var out = []
+  for (var i = 0; i < this.ranges.length; i++)
+    { out[i] = new Range(copyPos(this$1.ranges[i].anchor), copyPos(this$1.ranges[i].head)) }
+  return new Selection(out, this.primIndex)
+};
+
+Selection.prototype.somethingSelected = function () {
+    var this$1 = this;
+
+  for (var i = 0; i < this.ranges.length; i++)
+    { if (!this$1.ranges[i].empty()) { return true } }
+  return false
+};
+
+Selection.prototype.contains = function (pos, end) {
+    var this$1 = this;
+
+  if (!end) { end = pos }
+  for (var i = 0; i < this.ranges.length; i++) {
+    var range = this$1.ranges[i]
+    if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
+      { return i }
+  }
+  return -1
+};
+
+var Range = function(anchor, head) {
+  this.anchor = anchor; this.head = head
+};
+
+Range.prototype.from = function () { return minPos(this.anchor, this.head) };
+Range.prototype.to = function () { return maxPos(this.anchor, this.head) };
+Range.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch };
+
+// Take an unsorted, potentially overlapping set of ranges, and
+// build a selection out of it. 'Consumes' ranges array (modifying
+// it).
+function normalizeSelection(ranges, primIndex) {
+  var prim = ranges[primIndex]
+  ranges.sort(function (a, b) { return cmp(a.from(), b.from()); })
+  primIndex = indexOf(ranges, prim)
+  for (var i = 1; i < ranges.length; i++) {
+    var cur = ranges[i], prev = ranges[i - 1]
+    if (cmp(prev.to(), cur.from()) >= 0) {
+      var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to())
+      var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head
+      if (i <= primIndex) { --primIndex }
+      ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to))
+    }
+  }
+  return new Selection(ranges, primIndex)
+}
+
+function simpleSelection(anchor, head) {
+  return new Selection([new Range(anchor, head || anchor)], 0)
+}
+
+// Compute the position of the end of a change (its 'to' property
+// refers to the pre-change end).
+function changeEnd(change) {
+  if (!change.text) { return change.to }
+  return Pos(change.from.line + change.text.length - 1,
+             lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0))
+}
+
+// Adjust a position to refer to the post-change position of the
+// same text, or the end of the change if the change covers it.
+function adjustForChange(pos, change) {
+  if (cmp(pos, change.from) < 0) { return pos }
+  if (cmp(pos, change.to) <= 0) { return changeEnd(change) }
+
+  var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch
+  if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch }
+  return Pos(line, ch)
+}
+
+function computeSelAfterChange(doc, change) {
+  var out = []
+  for (var i = 0; i < doc.sel.ranges.length; i++) {
+    var range = doc.sel.ranges[i]
+    out.push(new Range(adjustForChange(range.anchor, change),
+                       adjustForChange(range.head, change)))
+  }
+  return normalizeSelection(out, doc.sel.primIndex)
+}
+
+function offsetPos(pos, old, nw) {
+  if (pos.line == old.line)
+    { return Pos(nw.line, pos.ch - old.ch + nw.ch) }
+  else
+    { return Pos(nw.line + (pos.line - old.line), pos.ch) }
+}
+
+// Used by replaceSelections to allow moving the selection to the
+// start or around the replaced test. Hint may be "start" or "around".
+function computeReplacedSel(doc, changes, hint) {
+  var out = []
+  var oldPrev = Pos(doc.first, 0), newPrev = oldPrev
+  for (var i = 0; i < changes.length; i++) {
+    var change = changes[i]
+    var from = offsetPos(change.from, oldPrev, newPrev)
+    var to = offsetPos(changeEnd(change), oldPrev, newPrev)
+    oldPrev = change.to
+    newPrev = to
+    if (hint == "around") {
+      var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0
+      out[i] = new Range(inv ? to : from, inv ? from : to)
+    } else {
+      out[i] = new Range(from, from)
+    }
+  }
+  return new Selection(out, doc.sel.primIndex)
+}
+
+// Used to get the editor into a consistent state again when options change.
+
+function loadMode(cm) {
+  cm.doc.mode = getMode(cm.options, cm.doc.modeOption)
+  resetModeState(cm)
+}
+
+function resetModeState(cm) {
+  cm.doc.iter(function (line) {
+    if (line.stateAfter) { line.stateAfter = null }
+    if (line.styles) { line.styles = null }
+  })
+  cm.doc.frontier = cm.doc.first
+  startWorker(cm, 100)
+  cm.state.modeGen++
+  if (cm.curOp) { regChange(cm) }
+}
+
+// DOCUMENT DATA STRUCTURE
+
+// By default, updates that start and end at the beginning of a line
+// are treated specially, in order to make the association of line
+// widgets and marker elements with the text behave more intuitive.
+function isWholeLineUpdate(doc, change) {
+  return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
+    (!doc.cm || doc.cm.options.wholeLineUpdateBefore)
+}
+
+// Perform a change on the document data structure.
+function updateDoc(doc, change, markedSpans, estimateHeight) {
+  function spansFor(n) {return markedSpans ? markedSpans[n] : null}
+  function update(line, text, spans) {
+    updateLine(line, text, spans, estimateHeight)
+    signalLater(line, "change", line, change)
+  }
+  function linesFor(start, end) {
+    var result = []
+    for (var i = start; i < end; ++i)
+      { result.push(new Line(text[i], spansFor(i), estimateHeight)) }
+    return result
+  }
+
+  var from = change.from, to = change.to, text = change.text
+  var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line)
+  var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line
+
+  // Adjust the line structure
+  if (change.full) {
+    doc.insert(0, linesFor(0, text.length))
+    doc.remove(text.length, doc.size - text.length)
+  } else if (isWholeLineUpdate(doc, change)) {
+    // This is a whole-line replace. Treated specially to make
+    // sure line objects move the way they are supposed to.
+    var added = linesFor(0, text.length - 1)
+    update(lastLine, lastLine.text, lastSpans)
+    if (nlines) { doc.remove(from.line, nlines) }
+    if (added.length) { doc.insert(from.line, added) }
+  } else if (firstLine == lastLine) {
+    if (text.length == 1) {
+      update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans)
+    } else {
+      var added$1 = linesFor(1, text.length - 1)
+      added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight))
+      update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0))
+      doc.insert(from.line + 1, added$1)
+    }
+  } else if (text.length == 1) {
+    update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0))
+    doc.remove(from.line + 1, nlines)
+  } else {
+    update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0))
+    update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans)
+    var added$2 = linesFor(1, text.length - 1)
+    if (nlines > 1) { doc.remove(from.line + 1, nlines - 1) }
+    doc.insert(from.line + 1, added$2)
+  }
+
+  signalLater(doc, "change", doc, change)
+}
+
+// Call f for all linked documents.
+function linkedDocs(doc, f, sharedHistOnly) {
+  function propagate(doc, skip, sharedHist) {
+    if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) {
+      var rel = doc.linked[i]
+      if (rel.doc == skip) { continue }
+      var shared = sharedHist && rel.sharedHist
+      if (sharedHistOnly && !shared) { continue }
+      f(rel.doc, shared)
+      propagate(rel.doc, doc, shared)
+    } }
+  }
+  propagate(doc, null, true)
+}
+
+// Attach a document to an editor.
+function attachDoc(cm, doc) {
+  if (doc.cm) { throw new Error("This document is already in use.") }
+  cm.doc = doc
+  doc.cm = cm
+  estimateLineHeights(cm)
+  loadMode(cm)
+  setDirectionClass(cm)
+  if (!cm.options.lineWrapping) { findMaxLine(cm) }
+  cm.options.mode = doc.modeOption
+  regChange(cm)
+}
+
+function setDirectionClass(cm) {
+  ;(cm.doc.direction == "rtl" ? addClass : rmClass)(cm.display.lineDiv, "CodeMirror-rtl")
+}
+
+function directionChanged(cm) {
+  runInOp(cm, function () {
+    setDirectionClass(cm)
+    regChange(cm)
+  })
+}
+
+function History(startGen) {
+  // Arrays of change events and selections. Doing something adds an
+  // event to done and clears undo. Undoing moves events from done
+  // to undone, redoing moves them in the other direction.
+  this.done = []; this.undone = []
+  this.undoDepth = Infinity
+  // Used to track when changes can be merged into a single undo
+  // event
+  this.lastModTime = this.lastSelTime = 0
+  this.lastOp = this.lastSelOp = null
+  this.lastOrigin = this.lastSelOrigin = null
+  // Used by the isClean() method
+  this.generation = this.maxGeneration = startGen || 1
+}
+
+// Create a history change event from an updateDoc-style change
+// object.
+function historyChangeFromChange(doc, change) {
+  var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)}
+  attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1)
+  linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true)
+  return histChange
+}
+
+// Pop all selection events off the end of a history array. Stop at
+// a change event.
+function clearSelectionEvents(array) {
+  while (array.length) {
+    var last = lst(array)
+    if (last.ranges) { array.pop() }
+    else { break }
+  }
+}
+
+// Find the top change event in the history. Pop off selection
+// events that are in the way.
+function lastChangeEvent(hist, force) {
+  if (force) {
+    clearSelectionEvents(hist.done)
+    return lst(hist.done)
+  } else if (hist.done.length && !lst(hist.done).ranges) {
+    return lst(hist.done)
+  } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
+    hist.done.pop()
+    return lst(hist.done)
+  }
+}
+
+// Register a change in the history. Merges changes that are within
+// a single operation, or are close together with an origin that
+// allows merging (starting with "+") into a single event.
+function addChangeToHistory(doc, change, selAfter, opId) {
+  var hist = doc.history
+  hist.undone.length = 0
+  var time = +new Date, cur
+  var last
+
+  if ((hist.lastOp == opId ||
+       hist.lastOrigin == change.origin && change.origin &&
+       ((change.origin.charAt(0) == "+" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) ||
+        change.origin.charAt(0) == "*")) &&
+      (cur = lastChangeEvent(hist, hist.lastOp == opId))) {
+    // Merge this change into the last event
+    last = lst(cur.changes)
+    if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
+      // Optimized case for simple insertion -- don't want to add
+      // new changesets for every character typed
+      last.to = changeEnd(change)
+    } else {
+      // Add new sub-event
+      cur.changes.push(historyChangeFromChange(doc, change))
+    }
+  } else {
+    // Can not be merged, start a new event.
+    var before = lst(hist.done)
+    if (!before || !before.ranges)
+      { pushSelectionToHistory(doc.sel, hist.done) }
+    cur = {changes: [historyChangeFromChange(doc, change)],
+           generation: hist.generation}
+    hist.done.push(cur)
+    while (hist.done.length > hist.undoDepth) {
+      hist.done.shift()
+      if (!hist.done[0].ranges) { hist.done.shift() }
+    }
+  }
+  hist.done.push(selAfter)
+  hist.generation = ++hist.maxGeneration
+  hist.lastModTime = hist.lastSelTime = time
+  hist.lastOp = hist.lastSelOp = opId
+  hist.lastOrigin = hist.lastSelOrigin = change.origin
+
+  if (!last) { signal(doc, "historyAdded") }
+}
+
+function selectionEventCanBeMerged(doc, origin, prev, sel) {
+  var ch = origin.charAt(0)
+  return ch == "*" ||
+    ch == "+" &&
+    prev.ranges.length == sel.ranges.length &&
+    prev.somethingSelected() == sel.somethingSelected() &&
+    new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500)
+}
+
+// Called whenever the selection changes, sets the new selection as
+// the pending selection in the history, and pushes the old pending
+// selection into the 'done' array when it was significantly
+// different (in number of selected ranges, emptiness, or time).
+function addSelectionToHistory(doc, sel, opId, options) {
+  var hist = doc.history, origin = options && options.origin
+
+  // A new event is started when the previous origin does not match
+  // the current, or the origins don't allow matching. Origins
+  // starting with * are always merged, those starting with + are
+  // merged when similar and close together in time.
+  if (opId == hist.lastSelOp ||
+      (origin && hist.lastSelOrigin == origin &&
+       (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
+        selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
+    { hist.done[hist.done.length - 1] = sel }
+  else
+    { pushSelectionToHistory(sel, hist.done) }
+
+  hist.lastSelTime = +new Date
+  hist.lastSelOrigin = origin
+  hist.lastSelOp = opId
+  if (options && options.clearRedo !== false)
+    { clearSelectionEvents(hist.undone) }
+}
+
+function pushSelectionToHistory(sel, dest) {
+  var top = lst(dest)
+  if (!(top && top.ranges && top.equals(sel)))
+    { dest.push(sel) }
+}
+
+// Used to store marked span information in the history.
+function attachLocalSpans(doc, change, from, to) {
+  var existing = change["spans_" + doc.id], n = 0
+  doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) {
+    if (line.markedSpans)
+      { (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans }
+    ++n
+  })
+}
+
+// When un/re-doing restores text containing marked spans, those
+// that have been explicitly cleared should not be restored.
+function removeClearedSpans(spans) {
+  if (!spans) { return null }
+  var out
+  for (var i = 0; i < spans.length; ++i) {
+    if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i) } }
+    else if (out) { out.push(spans[i]) }
+  }
+  return !out ? spans : out.length ? out : null
+}
+
+// Retrieve and filter the old marked spans stored in a change event.
+function getOldSpans(doc, change) {
+  var found = change["spans_" + doc.id]
+  if (!found) { return null }
+  var nw = []
+  for (var i = 0; i < change.text.length; ++i)
+    { nw.push(removeClearedSpans(found[i])) }
+  return nw
+}
+
+// Used for un/re-doing changes from the history. Combines the
+// result of computing the existing spans with the set of spans that
+// existed in the history (so that deleting around a span and then
+// undoing brings back the span).
+function mergeOldSpans(doc, change) {
+  var old = getOldSpans(doc, change)
+  var stretched = stretchSpansOverChange(doc, change)
+  if (!old) { return stretched }
+  if (!stretched) { return old }
+
+  for (var i = 0; i < old.length; ++i) {
+    var oldCur = old[i], stretchCur = stretched[i]
+    if (oldCur && stretchCur) {
+      spans: for (var j = 0; j < stretchCur.length; ++j) {
+        var span = stretchCur[j]
+        for (var k = 0; k < oldCur.length; ++k)
+          { if (oldCur[k].marker == span.marker) { continue spans } }
+        oldCur.push(span)
+      }
+    } else if (stretchCur) {
+      old[i] = stretchCur
+    }
+  }
+  return old
+}
+
+// Used both to provide a JSON-safe object in .getHistory, and, when
+// detaching a document, to split the history in two
+function copyHistoryArray(events, newGroup, instantiateSel) {
+  var copy = []
+  for (var i = 0; i < events.length; ++i) {
+    var event = events[i]
+    if (event.ranges) {
+      copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event)
+      continue
+    }
+    var changes = event.changes, newChanges = []
+    copy.push({changes: newChanges})
+    for (var j = 0; j < changes.length; ++j) {
+      var change = changes[j], m = (void 0)
+      newChanges.push({from: change.from, to: change.to, text: change.text})
+      if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\d+)$/)) {
+        if (indexOf(newGroup, Number(m[1])) > -1) {
+          lst(newChanges)[prop] = change[prop]
+          delete change[prop]
+        }
+      } } }
+    }
+  }
+  return copy
+}
+
+// The 'scroll' parameter given to many of these indicated whether
+// the new cursor position should be scrolled into view after
+// modifying the selection.
+
+// If shift is held or the extend flag is set, extends a range to
+// include a given position (and optionally a second position).
+// Otherwise, simply returns the range between the given positions.
+// Used for cursor motion and such.
+function extendRange(doc, range, head, other) {
+  if (doc.cm && doc.cm.display.shift || doc.extend) {
+    var anchor = range.anchor
+    if (other) {
+      var posBefore = cmp(head, anchor) < 0
+      if (posBefore != (cmp(other, anchor) < 0)) {
+        anchor = head
+        head = other
+      } else if (posBefore != (cmp(head, other) < 0)) {
+        head = other
+      }
+    }
+    return new Range(anchor, head)
+  } else {
+    return new Range(other || head, head)
+  }
+}
+
+// Extend the primary selection range, discard the rest.
+function extendSelection(doc, head, other, options) {
+  setSelection(doc, new Selection([extendRange(doc, doc.sel.primary(), head, other)], 0), options)
+}
+
+// Extend all selections (pos is an array of selections with length
+// equal the number of selections)
+function extendSelections(doc, heads, options) {
+  var out = []
+  for (var i = 0; i < doc.sel.ranges.length; i++)
+    { out[i] = extendRange(doc, doc.sel.ranges[i], heads[i], null) }
+  var newSel = normalizeSelection(out, doc.sel.primIndex)
+  setSelection(doc, newSel, options)
+}
+
+// Updates a single range in the selection.
+function replaceOneSelection(doc, i, range, options) {
+  var ranges = doc.sel.ranges.slice(0)
+  ranges[i] = range
+  setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options)
+}
+
+// Reset the selection to a single range.
+function setSimpleSelection(doc, anchor, head, options) {
+  setSelection(doc, simpleSelection(anchor, head), options)
+}
+
+// Give beforeSelectionChange handlers a change to influence a
+// selection update.
+function filterSelectionChange(doc, sel, options) {
+  var obj = {
+    ranges: sel.ranges,
+    update: function(ranges) {
+      var this$1 = this;
+
+      this.ranges = []
+      for (var i = 0; i < ranges.length; i++)
+        { this$1.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
+                                   clipPos(doc, ranges[i].head)) }
+    },
+    origin: options && options.origin
+  }
+  signal(doc, "beforeSelectionChange", doc, obj)
+  if (doc.cm) { signal(doc.cm, "beforeSelectionChange", doc.cm, obj) }
+  if (obj.ranges != sel.ranges) { return normalizeSelection(obj.ranges, obj.ranges.length - 1) }
+  else { return sel }
+}
+
+function setSelectionReplaceHistory(doc, sel, options) {
+  var done = doc.history.done, last = lst(done)
+  if (last && last.ranges) {
+    done[done.length - 1] = sel
+    setSelectionNoUndo(doc, sel, options)
+  } else {
+    setSelection(doc, sel, options)
+  }
+}
+
+// Set a new selection.
+function setSelection(doc, sel, options) {
+  setSelectionNoUndo(doc, sel, options)
+  addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options)
+}
+
+function setSelectionNoUndo(doc, sel, options) {
+  if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
+    { sel = filterSelectionChange(doc, sel, options) }
+
+  var bias = options && options.bias ||
+    (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1)
+  setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true))
+
+  if (!(options && options.scroll === false) && doc.cm)
+    { ensureCursorVisible(doc.cm) }
+}
+
+function setSelectionInner(doc, sel) {
+  if (sel.equals(doc.sel)) { return }
+
+  doc.sel = sel
+
+  if (doc.cm) {
+    doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true
+    signalCursorActivity(doc.cm)
+  }
+  signalLater(doc, "cursorActivity", doc)
+}
+
+// Verify that the selection does not partially select any atomic
+// marked ranges.
+function reCheckSelection(doc) {
+  setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false), sel_dontScroll)
+}
+
+// Return a selection that does not partially select any atomic
+// ranges.
+function skipAtomicInSelection(doc, sel, bias, mayClear) {
+  var out
+  for (var i = 0; i < sel.ranges.length; i++) {
+    var range = sel.ranges[i]
+    var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i]
+    var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear)
+    var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear)
+    if (out || newAnchor != range.anchor || newHead != range.head) {
+      if (!out) { out = sel.ranges.slice(0, i) }
+      out[i] = new Range(newAnchor, newHead)
+    }
+  }
+  return out ? normalizeSelection(out, sel.primIndex) : sel
+}
+
+function skipAtomicInner(doc, pos, oldPos, dir, mayClear) {
+  var line = getLine(doc, pos.line)
+  if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) {
+    var sp = line.markedSpans[i], m = sp.marker
+    if ((sp.from == null || (m.inclusiveLeft ? sp.from <= pos.ch : sp.from < pos.ch)) &&
+        (sp.to == null || (m.inclusiveRight ? sp.to >= pos.ch : sp.to > pos.ch))) {
+      if (mayClear) {
+        signal(m, "beforeCursorEnter")
+        if (m.explicitlyCleared) {
+          if (!line.markedSpans) { break }
+          else {--i; continue}
+        }
+      }
+      if (!m.atomic) { continue }
+
+      if (oldPos) {
+        var near = m.find(dir < 0 ? 1 : -1), diff = (void 0)
+        if (dir < 0 ? m.inclusiveRight : m.inclusiveLeft)
+          { near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null) }
+        if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))
+          { return skipAtomicInner(doc, near, pos, dir, mayClear) }
+      }
+
+      var far = m.find(dir < 0 ? -1 : 1)
+      if (dir < 0 ? m.inclusiveLeft : m.inclusiveRight)
+        { far = movePos(doc, far, dir, far.line == pos.line ? line : null) }
+      return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null
+    }
+  } }
+  return pos
+}
+
+// Ensure a given position is not inside an atomic range.
+function skipAtomic(doc, pos, oldPos, bias, mayClear) {
+  var dir = bias || 1
+  var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||
+      (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||
+      skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||
+      (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true))
+  if (!found) {
+    doc.cantEdit = true
+    return Pos(doc.first, 0)
+  }
+  return found
+}
+
+function movePos(doc, pos, dir, line) {
+  if (dir < 0 && pos.ch == 0) {
+    if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) }
+    else { return null }
+  } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {
+    if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) }
+    else { return null }
+  } else {
+    return new Pos(pos.line, pos.ch + dir)
+  }
+}
+
+function selectAll(cm) {
+  cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll)
+}
+
+// UPDATING
+
+// Allow "beforeChange" event handlers to influence a change
+function filterChange(doc, change, update) {
+  var obj = {
+    canceled: false,
+    from: change.from,
+    to: change.to,
+    text: change.text,
+    origin: change.origin,
+    cancel: function () { return obj.canceled = true; }
+  }
+  if (update) { obj.update = function (from, to, text, origin) {
+    if (from) { obj.from = clipPos(doc, from) }
+    if (to) { obj.to = clipPos(doc, to) }
+    if (text) { obj.text = text }
+    if (origin !== undefined) { obj.origin = origin }
+  } }
+  signal(doc, "beforeChange", doc, obj)
+  if (doc.cm) { signal(doc.cm, "beforeChange", doc.cm, obj) }
+
+  if (obj.canceled) { return null }
+  return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}
+}
+
+// Apply a change to a document, and add it to the document's
+// history, and propagating it to all linked documents.
+function makeChange(doc, change, ignoreReadOnly) {
+  if (doc.cm) {
+    if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) }
+    if (doc.cm.state.suppressEdits) { return }
+  }
+
+  if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
+    change = filterChange(doc, change, true)
+    if (!change) { return }
+  }
+
+  // Possibly split or suppress the update based on the presence
+  // of read-only spans in its range.
+  var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to)
+  if (split) {
+    for (var i = split.length - 1; i >= 0; --i)
+      { makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text}) }
+  } else {
+    makeChangeInner(doc, change)
+  }
+}
+
+function makeChangeInner(doc, change) {
+  if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) { return }
+  var selAfter = computeSelAfterChange(doc, change)
+  addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN)
+
+  makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change))
+  var rebased = []
+
+  linkedDocs(doc, function (doc, sharedHist) {
+    if (!sharedHist && indexOf(rebased, doc.history) == -1) {
+      rebaseHist(doc.history, change)
+      rebased.push(doc.history)
+    }
+    makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change))
+  })
+}
+
+// Revert a change stored in a document's history.
+function makeChangeFromHistory(doc, type, allowSelectionOnly) {
+  if (doc.cm && doc.cm.state.suppressEdits && !allowSelectionOnly) { return }
+
+  var hist = doc.history, event, selAfter = doc.sel
+  var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done
+
+  // Verify that there is a useable event (so that ctrl-z won't
+  // needlessly clear selection events)
+  var i = 0
+  for (; i < source.length; i++) {
+    event = source[i]
+    if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
+      { break }
+  }
+  if (i == source.length) { return }
+  hist.lastOrigin = hist.lastSelOrigin = null
+
+  for (;;) {
+    event = source.pop()
+    if (event.ranges) {
+      pushSelectionToHistory(event, dest)
+      if (allowSelectionOnly && !event.equals(doc.sel)) {
+        setSelection(doc, event, {clearRedo: false})
+        return
+      }
+      selAfter = event
+    }
+    else { break }
+  }
+
+  // Build up a reverse change object to add to the opposite history
+  // stack (redo when undoing, and vice versa).
+  var antiChanges = []
+  pushSelectionToHistory(selAfter, dest)
+  dest.push({changes: antiChanges, generation: hist.generation})
+  hist.generation = event.generation || ++hist.maxGeneration
+
+  var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")
+
+  var loop = function ( i ) {
+    var change = event.changes[i]
+    change.origin = type
+    if (filter && !filterChange(doc, change, false)) {
+      source.length = 0
+      return {}
+    }
+
+    antiChanges.push(historyChangeFromChange(doc, change))
+
+    var after = i ? computeSelAfterChange(doc, change) : lst(source)
+    makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change))
+    if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}) }
+    var rebased = []
+
+    // Propagate to the linked documents
+    linkedDocs(doc, function (doc, sharedHist) {
+      if (!sharedHist && indexOf(rebased, doc.history) == -1) {
+        rebaseHist(doc.history, change)
+        rebased.push(doc.history)
+      }
+      makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change))
+    })
+  };
+
+  for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) {
+    var returned = loop( i$1 );
+
+    if ( returned ) return returned.v;
+  }
+}
+
+// Sub-views need their line numbers shifted when text is added
+// above or below them in the parent document.
+function shiftDoc(doc, distance) {
+  if (distance == 0) { return }
+  doc.first += distance
+  doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range(
+    Pos(range.anchor.line + distance, range.anchor.ch),
+    Pos(range.head.line + distance, range.head.ch)
+  ); }), doc.sel.primIndex)
+  if (doc.cm) {
+    regChange(doc.cm, doc.first, doc.first - distance, distance)
+    for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
+      { regLineChange(doc.cm, l, "gutter") }
+  }
+}
+
+// More lower-level change function, handling only a single document
+// (not linked ones).
+function makeChangeSingleDoc(doc, change, selAfter, spans) {
+  if (doc.cm && !doc.cm.curOp)
+    { return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) }
+
+  if (change.to.line < doc.first) {
+    shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line))
+    return
+  }
+  if (change.from.line > doc.lastLine()) { return }
+
+  // Clip the change to the size of this doc
+  if (change.from.line < doc.first) {
+    var shift = change.text.length - 1 - (doc.first - change.from.line)
+    shiftDoc(doc, shift)
+    change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
+              text: [lst(change.text)], origin: change.origin}
+  }
+  var last = doc.lastLine()
+  if (change.to.line > last) {
+    change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
+              text: [change.text[0]], origin: change.origin}
+  }
+
+  change.removed = getBetween(doc, change.from, change.to)
+
+  if (!selAfter) { selAfter = computeSelAfterChange(doc, change) }
+  if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans) }
+  else { updateDoc(doc, change, spans) }
+  setSelectionNoUndo(doc, selAfter, sel_dontScroll)
+}
+
+// Handle the interaction of a change to a document with the editor
+// that this document is part of.
+function makeChangeSingleDocInEditor(cm, change, spans) {
+  var doc = cm.doc, display = cm.display, from = change.from, to = change.to
+
+  var recomputeMaxLength = false, checkWidthStart = from.line
+  if (!cm.options.lineWrapping) {
+    checkWidthStart = lineNo(visualLine(getLine(doc, from.line)))
+    doc.iter(checkWidthStart, to.line + 1, function (line) {
+      if (line == display.maxLine) {
+        recomputeMaxLength = true
+        return true
+      }
+    })
+  }
+
+  if (doc.sel.contains(change.from, change.to) > -1)
+    { signalCursorActivity(cm) }
+
+  updateDoc(doc, change, spans, estimateHeight(cm))
+
+  if (!cm.options.lineWrapping) {
+    doc.iter(checkWidthStart, from.line + change.text.length, function (line) {
+      var len = lineLength(line)
+      if (len > display.maxLineLength) {
+        display.maxLine = line
+        display.maxLineLength = len
+        display.maxLineChanged = true
+        recomputeMaxLength = false
+      }
+    })
+    if (recomputeMaxLength) { cm.curOp.updateMaxLine = true }
+  }
+
+  // Adjust frontier, schedule worker
+  doc.frontier = Math.min(doc.frontier, from.line)
+  startWorker(cm, 400)
+
+  var lendiff = change.text.length - (to.line - from.line) - 1
+  // Remember that these lines changed, for updating the display
+  if (change.full)
+    { regChange(cm) }
+  else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
+    { regLineChange(cm, from.line, "text") }
+  else
+    { regChange(cm, from.line, to.line + 1, lendiff) }
+
+  var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change")
+  if (changeHandler || changesHandler) {
+    var obj = {
+      from: from, to: to,
+      text: change.text,
+      removed: change.removed,
+      origin: change.origin
+    }
+    if (changeHandler) { signalLater(cm, "change", cm, obj) }
+    if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj) }
+  }
+  cm.display.selForContextMenu = null
+}
+
+function replaceRange(doc, code, from, to, origin) {
+  if (!to) { to = from }
+  if (cmp(to, from) < 0) { var tmp = to; to = from; from = tmp }
+  if (typeof code == "string") { code = doc.splitLines(code) }
+  makeChange(doc, {from: from, to: to, text: code, origin: origin})
+}
+
+// Rebasing/resetting history to deal with externally-sourced changes
+
+function rebaseHistSelSingle(pos, from, to, diff) {
+  if (to < pos.line) {
+    pos.line += diff
+  } else if (from < pos.line) {
+    pos.line = from
+    pos.ch = 0
+  }
+}
+
+// Tries to rebase an array of history events given a change in the
+// document. If the change touches the same lines as the event, the
+// event, and everything 'behind' it, is discarded. If the change is
+// before the event, the event's positions are updated. Uses a
+// copy-on-write scheme for the positions, to avoid having to
+// reallocate them all on every rebase, but also avoid problems with
+// shared position objects being unsafely updated.
+function rebaseHistArray(array, from, to, diff) {
+  for (var i = 0; i < array.length; ++i) {
+    var sub = array[i], ok = true
+    if (sub.ranges) {
+      if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true }
+      for (var j = 0; j < sub.ranges.length; j++) {
+        rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff)
+        rebaseHistSelSingle(sub.ranges[j].head, from, to, diff)
+      }
+      continue
+    }
+    for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) {
+      var cur = sub.changes[j$1]
+      if (to < cur.from.line) {
+        cur.from = Pos(cur.from.line + diff, cur.from.ch)
+        cur.to = Pos(cur.to.line + diff, cur.to.ch)
+      } else if (from <= cur.to.line) {
+        ok = false
+        break
+      }
+    }
+    if (!ok) {
+      array.splice(0, i + 1)
+      i = 0
+    }
+  }
+}
+
+function rebaseHist(hist, change) {
+  var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1
+  rebaseHistArray(hist.done, from, to, diff)
+  rebaseHistArray(hist.undone, from, to, diff)
+}
+
+// Utility for applying a change to a line by handle or number,
+// returning the number and optionally registering the line as
+// changed.
+function changeLine(doc, handle, changeType, op) {
+  var no = handle, line = handle
+  if (typeof handle == "number") { line = getLine(doc, clipLine(doc, handle)) }
+  else { no = lineNo(handle) }
+  if (no == null) { return null }
+  if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType) }
+  return line
+}
+
+// The document is represented as a BTree consisting of leaves, with
+// chunk of lines in them, and branches, with up to ten leaves or
+// other branch nodes below them. The top node is always a branch
+// node, and is the document object itself (meaning it has
+// additional methods and properties).
+//
+// All nodes have parent links. The tree is used both to go from
+// line numbers to line objects, and to go from objects to numbers.
+// It also indexes by height, and is used to convert between height
+// and line object, and to find the total height of the document.
+//
+// See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html
+
+var LeafChunk = function(lines) {
+  var this$1 = this;
+
+  this.lines = lines
+  this.parent = null
+  var height = 0
+  for (var i = 0; i < lines.length; ++i) {
+    lines[i].parent = this$1
+    height += lines[i].height
+  }
+  this.height = height
+};
+
+LeafChunk.prototype.chunkSize = function () { return this.lines.length };
+
+// Remove the n lines at offset 'at'.
+LeafChunk.prototype.removeInner = function (at, n) {
+    var this$1 = this;
+
+  for (var i = at, e = at + n; i < e; ++i) {
+    var line = this$1.lines[i]
+    this$1.height -= line.height
+    cleanUpLine(line)
+    signalLater(line, "delete")
+  }
+  this.lines.splice(at, n)
+};
+
+// Helper used to collapse a small branch into a single leaf.
+LeafChunk.prototype.collapse = function (lines) {
+  lines.push.apply(lines, this.lines)
+};
+
+// Insert the given array of lines at offset 'at', count them as
+// having the given height.
+LeafChunk.prototype.insertInner = function (at, lines, height) {
+    var this$1 = this;
+
+  this.height += height
+  this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at))
+  for (var i = 0; i < lines.length; ++i) { lines[i].parent = this$1 }
+};
+
+// Used to iterate over a part of the tree.
+LeafChunk.prototype.iterN = function (at, n, op) {
+    var this$1 = this;
+
+  for (var e = at + n; at < e; ++at)
+    { if (op(this$1.lines[at])) { return true } }
+};
+
+var BranchChunk = function(children) {
+  var this$1 = this;
+
+  this.children = children
+  var size = 0, height = 0
+  for (var i = 0; i < children.length; ++i) {
+    var ch = children[i]
+    size += ch.chunkSize(); height += ch.height
+    ch.parent = this$1
+  }
+  this.size = size
+  this.height = height
+  this.parent = null
+};
+
+BranchChunk.prototype.chunkSize = function () { return this.size };
+
+BranchChunk.prototype.removeInner = function (at, n) {
+    var this$1 = this;
+
+  this.size -= n
+  for (var i = 0; i < this.children.length; ++i) {
+    var child = this$1.children[i], sz = child.chunkSize()
+    if (at < sz) {
+      var rm = Math.min(n, sz - at), oldHeight = child.height
+      child.removeInner(at, rm)
+      this$1.height -= oldHeight - child.height
+      if (sz == rm) { this$1.children.splice(i--, 1); child.parent = null }
+      if ((n -= rm) == 0) { break }
+      at = 0
+    } else { at -= sz }
+  }
+  // If the result is smaller than 25 lines, ensure that it is a
+  // single leaf node.
+  if (this.size - n < 25 &&
+      (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
+    var lines = []
+    this.collapse(lines)
+    this.children = [new LeafChunk(lines)]
+    this.children[0].parent = this
+  }
+};
+
+BranchChunk.prototype.collapse = function (lines) {
+    var this$1 = this;
+
+  for (var i = 0; i < this.children.length; ++i) { this$1.children[i].collapse(lines) }
+};
+
+BranchChunk.prototype.insertInner = function (at, lines, height) {
+    var this$1 = this;
+
+  this.size += lines.length
+  this.height += height
+  for (var i = 0; i < this.children.length; ++i) {
+    var child = this$1.children[i], sz = child.chunkSize()
+    if (at <= sz) {
+      child.insertInner(at, lines, height)
+      if (child.lines && child.lines.length > 50) {
+        // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.
+        // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.
+        var remaining = child.lines.length % 25 + 25
+        for (var pos = remaining; pos < child.lines.length;) {
+          var leaf = new LeafChunk(child.lines.slice(pos, pos += 25))
+          child.height -= leaf.height
+          this$1.children.splice(++i, 0, leaf)
+          leaf.parent = this$1
+        }
+        child.lines = child.lines.slice(0, remaining)
+        this$1.maybeSpill()
+      }
+      break
+    }
+    at -= sz
+  }
+};
+
+// When a node has grown, check whether it should be split.
+BranchChunk.prototype.maybeSpill = function () {
+  if (this.children.length <= 10) { return }
+  var me = this
+  do {
+    var spilled = me.children.splice(me.children.length - 5, 5)
+    var sibling = new BranchChunk(spilled)
+    if (!me.parent) { // Become the parent node
+      var copy = new BranchChunk(me.children)
+      copy.parent = me
+      me.children = [copy, sibling]
+      me = copy
+   } else {
+      me.size -= sibling.size
+      me.height -= sibling.height
+      var myIndex = indexOf(me.parent.children, me)
+      me.parent.children.splice(myIndex + 1, 0, sibling)
+    }
+    sibling.parent = me.parent
+  } while (me.children.length > 10)
+  me.parent.maybeSpill()
+};
+
+BranchChunk.prototype.iterN = function (at, n, op) {
+    var this$1 = this;
+
+  for (var i = 0; i < this.children.length; ++i) {
+    var child = this$1.children[i], sz = child.chunkSize()
+    if (at < sz) {
+      var used = Math.min(n, sz - at)
+      if (child.iterN(at, used, op)) { return true }
+      if ((n -= used) == 0) { break }
+      at = 0
+    } else { at -= sz }
+  }
+};
+
+// Line widgets are block elements displayed above or below a line.
+
+var LineWidget = function(doc, node, options) {
+  var this$1 = this;
+
+  if (options) { for (var opt in options) { if (options.hasOwnProperty(opt))
+    { this$1[opt] = options[opt] } } }
+  this.doc = doc
+  this.node = node
+};
+
+LineWidget.prototype.clear = function () {
+    var this$1 = this;
+
+  var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line)
+  if (no == null || !ws) { return }
+  for (var i = 0; i < ws.length; ++i) { if (ws[i] == this$1) { ws.splice(i--, 1) } }
+  if (!ws.length) { line.widgets = null }
+  var height = widgetHeight(this)
+  updateLineHeight(line, Math.max(0, line.height - height))
+  if (cm) {
+    runInOp(cm, function () {
+      adjustScrollWhenAboveVisible(cm, line, -height)
+      regLineChange(cm, no, "widget")
+    })
+    signalLater(cm, "lineWidgetCleared", cm, this, no)
+  }
+};
+
+LineWidget.prototype.changed = function () {
+    var this$1 = this;
+
+  var oldH = this.height, cm = this.doc.cm, line = this.line
+  this.height = null
+  var diff = widgetHeight(this) - oldH
+  if (!diff) { return }
+  updateLineHeight(line, line.height + diff)
+  if (cm) {
+    runInOp(cm, function () {
+      cm.curOp.forceUpdate = true
+      adjustScrollWhenAboveVisible(cm, line, diff)
+      signalLater(cm, "lineWidgetChanged", cm, this$1, lineNo(line))
+    })
+  }
+};
+eventMixin(LineWidget)
+
+function adjustScrollWhenAboveVisible(cm, line, diff) {
+  if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
+    { addToScrollPos(cm, null, diff) }
+}
+
+function addLineWidget(doc, handle, node, options) {
+  var widget = new LineWidget(doc, node, options)
+  var cm = doc.cm
+  if (cm && widget.noHScroll) { cm.display.alignWidgets = true }
+  changeLine(doc, handle, "widget", function (line) {
+    var widgets = line.widgets || (line.widgets = [])
+    if (widget.insertAt == null) { widgets.push(widget) }
+    else { widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget) }
+    widget.line = line
+    if (cm && !lineIsHidden(doc, line)) {
+      var aboveVisible = heightAtLine(line) < doc.scrollTop
+      updateLineHeight(line, line.height + widgetHeight(widget))
+      if (aboveVisible) { addToScrollPos(cm, null, widget.height) }
+      cm.curOp.forceUpdate = true
+    }
+    return true
+  })
+  signalLater(cm, "lineWidgetAdded", cm, widget, typeof handle == "number" ? handle : lineNo(handle))
+  return widget
+}
+
+// TEXTMARKERS
+
+// Created with markText and setBookmark methods. A TextMarker is a
+// handle that can be used to clear or find a marked position in the
+// document. Line objects hold arrays (markedSpans) containing
+// {from, to, marker} object pointing to such marker objects, and
+// indicating that such a marker is present on that line. Multiple
+// lines may point to the same marker when it spans across lines.
+// The spans will have null for their from/to properties when the
+// marker continues beyond the start/end of the line. Markers have
+// links back to the lines they currently touch.
+
+// Collapsed markers have unique ids, in order to be able to order
+// them, which is needed for uniquely determining an outer marker
+// when they overlap (they may nest, but not partially overlap).
+var nextMarkerId = 0
+
+var TextMarker = function(doc, type) {
+  this.lines = []
+  this.type = type
+  this.doc = doc
+  this.id = ++nextMarkerId
+};
+
+// Clear the marker.
+TextMarker.prototype.clear = function () {
+    var this$1 = this;
+
+  if (this.explicitlyCleared) { return }
+  var cm = this.doc.cm, withOp = cm && !cm.curOp
+  if (withOp) { startOperation(cm) }
+  if (hasHandler(this, "clear")) {
+    var found = this.find()
+    if (found) { signalLater(this, "clear", found.from, found.to) }
+  }
+  var min = null, max = null
+  for (var i = 0; i < this.lines.length; ++i) {
+    var line = this$1.lines[i]
+    var span = getMarkedSpanFor(line.markedSpans, this$1)
+    if (cm && !this$1.collapsed) { regLineChange(cm, lineNo(line), "text") }
+    else if (cm) {
+      if (span.to != null) { max = lineNo(line) }
+      if (span.from != null) { min = lineNo(line) }
+    }
+    line.markedSpans = removeMarkedSpan(line.markedSpans, span)
+    if (span.from == null && this$1.collapsed && !lineIsHidden(this$1.doc, line) && cm)
+      { updateLineHeight(line, textHeight(cm.display)) }
+  }
+  if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) {
+    var visual = visualLine(this$1.lines[i$1]), len = lineLength(visual)
+    if (len > cm.display.maxLineLength) {
+      cm.display.maxLine = visual
+      cm.display.maxLineLength = len
+      cm.display.maxLineChanged = true
+    }
+  } }
+
+  if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1) }
+  this.lines.length = 0
+  this.explicitlyCleared = true
+  if (this.atomic && this.doc.cantEdit) {
+    this.doc.cantEdit = false
+    if (cm) { reCheckSelection(cm.doc) }
+  }
+  if (cm) { signalLater(cm, "markerCleared", cm, this, min, max) }
+  if (withOp) { endOperation(cm) }
+  if (this.parent) { this.parent.clear() }
+};
+
+// Find the position of the marker in the document. Returns a {from,
+// to} object by default. Side can be passed to get a specific side
+// -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
+// Pos objects returned contain a line object, rather than a line
+// number (used to prevent looking up the same line twice).
+TextMarker.prototype.find = function (side, lineObj) {
+    var this$1 = this;
+
+  if (side == null && this.type == "bookmark") { side = 1 }
+  var from, to
+  for (var i = 0; i < this.lines.length; ++i) {
+    var line = this$1.lines[i]
+    var span = getMarkedSpanFor(line.markedSpans, this$1)
+    if (span.from != null) {
+      from = Pos(lineObj ? line : lineNo(line), span.from)
+      if (side == -1) { return from }
+    }
+    if (span.to != null) {
+      to = Pos(lineObj ? line : lineNo(line), span.to)
+      if (side == 1) { return to }
+    }
+  }
+  return from && {from: from, to: to}
+};
+
+// Signals that the marker's widget changed, and surrounding layout
+// should be recomputed.
+TextMarker.prototype.changed = function () {
+    var this$1 = this;
+
+  var pos = this.find(-1, true), widget = this, cm = this.doc.cm
+  if (!pos || !cm) { return }
+  runInOp(cm, function () {
+    var line = pos.line, lineN = lineNo(pos.line)
+    var view = findViewForLine(cm, lineN)
+    if (view) {
+      clearLineMeasurementCacheFor(view)
+      cm.curOp.selectionChanged = cm.curOp.forceUpdate = true
+    }
+    cm.curOp.updateMaxLine = true
+    if (!lineIsHidden(widget.doc, line) && widget.height != null) {
+      var oldHeight = widget.height
+      widget.height = null
+      var dHeight = widgetHeight(widget) - oldHeight
+      if (dHeight)
+        { updateLineHeight(line, line.height + dHeight) }
+    }
+    signalLater(cm, "markerChanged", cm, this$1)
+  })
+};
+
+TextMarker.prototype.attachLine = function (line) {
+  if (!this.lines.length && this.doc.cm) {
+    var op = this.doc.cm.curOp
+    if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
+      { (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this) }
+  }
+  this.lines.push(line)
+};
+
+TextMarker.prototype.detachLine = function (line) {
+  this.lines.splice(indexOf(this.lines, line), 1)
+  if (!this.lines.length && this.doc.cm) {
+    var op = this.doc.cm.curOp
+    ;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this)
+  }
+};
+eventMixin(TextMarker)
+
+// Create a marker, wire it up to the right lines, and
+function markText(doc, from, to, options, type) {
+  // Shared markers (across linked documents) are handled separately
+  // (markTextShared will call out to this again, once per
+  // document).
+  if (options && options.shared) { return markTextShared(doc, from, to, options, type) }
+  // Ensure we are in an operation.
+  if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) }
+
+  var marker = new TextMarker(doc, type), diff = cmp(from, to)
+  if (options) { copyObj(options, marker, false) }
+  // Don't connect empty markers unless clearWhenEmpty is false
+  if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
+    { return marker }
+  if (marker.replacedWith) {
+    // Showing up as a widget implies collapsed (widget replaces text)
+    marker.collapsed = true
+    marker.widgetNode = eltP("span", [marker.replacedWith], "CodeMirror-widget")
+    if (!options.handleMouseEvents) { marker.widgetNode.setAttribute("cm-ignore-events", "true") }
+    if (options.insertLeft) { marker.widgetNode.insertLeft = true }
+  }
+  if (marker.collapsed) {
+    if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
+        from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
+      { throw new Error("Inserting collapsed marker partially overlapping an existing one") }
+    seeCollapsedSpans()
+  }
+
+  if (marker.addToHistory)
+    { addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN) }
+
+  var curLine = from.line, cm = doc.cm, updateMaxLine
+  doc.iter(curLine, to.line + 1, function (line) {
+    if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
+      { updateMaxLine = true }
+    if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0) }
+    addMarkedSpan(line, new MarkedSpan(marker,
+                                       curLine == from.line ? from.ch : null,
+                                       curLine == to.line ? to.ch : null))
+    ++curLine
+  })
+  // lineIsHidden depends on the presence of the spans, so needs a second pass
+  if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) {
+    if (lineIsHidden(doc, line)) { updateLineHeight(line, 0) }
+  }) }
+
+  if (marker.clearOnEnter) { on(marker, "beforeCursorEnter", function () { return marker.clear(); }) }
+
+  if (marker.readOnly) {
+    seeReadOnlySpans()
+    if (doc.history.done.length || doc.history.undone.length)
+      { doc.clearHistory() }
+  }
+  if (marker.collapsed) {
+    marker.id = ++nextMarkerId
+    marker.atomic = true
+  }
+  if (cm) {
+    // Sync editor state
+    if (updateMaxLine) { cm.curOp.updateMaxLine = true }
+    if (marker.collapsed)
+      { regChange(cm, from.line, to.line + 1) }
+    else if (marker.className || marker.title || marker.startStyle || marker.endStyle || marker.css)
+      { for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, "text") } }
+    if (marker.atomic) { reCheckSelection(cm.doc) }
+    signalLater(cm, "markerAdded", cm, marker)
+  }
+  return marker
+}
+
+// SHARED TEXTMARKERS
+
+// A shared marker spans multiple linked documents. It is
+// implemented as a meta-marker-object controlling multiple normal
+// markers.
+var SharedTextMarker = function(markers, primary) {
+  var this$1 = this;
+
+  this.markers = markers
+  this.primary = primary
+  for (var i = 0; i < markers.length; ++i)
+    { markers[i].parent = this$1 }
+};
+
+SharedTextMarker.prototype.clear = function () {
+    var this$1 = this;
+
+  if (this.explicitlyCleared) { return }
+  this.explicitlyCleared = true
+  for (var i = 0; i < this.markers.length; ++i)
+    { this$1.markers[i].clear() }
+  signalLater(this, "clear")
+};
+
+SharedTextMarker.prototype.find = function (side, lineObj) {
+  return this.primary.find(side, lineObj)
+};
+eventMixin(SharedTextMarker)
+
+function markTextShared(doc, from, to, options, type) {
+  options = copyObj(options)
+  options.shared = false
+  var markers = [markText(doc, from, to, options, type)], primary = markers[0]
+  var widget = options.widgetNode
+  linkedDocs(doc, function (doc) {
+    if (widget) { options.widgetNode = widget.cloneNode(true) }
+    markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type))
+    for (var i = 0; i < doc.linked.length; ++i)
+      { if (doc.linked[i].isParent) { return } }
+    primary = lst(markers)
+  })
+  return new SharedTextMarker(markers, primary)
+}
+
+function findSharedMarkers(doc) {
+  return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; })
+}
+
+function copySharedMarkers(doc, markers) {
+  for (var i = 0; i < markers.length; i++) {
+    var marker = markers[i], pos = marker.find()
+    var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to)
+    if (cmp(mFrom, mTo)) {
+      var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type)
+      marker.markers.push(subMark)
+      subMark.parent = marker
+    }
+  }
+}
+
+function detachSharedMarkers(markers) {
+  var loop = function ( i ) {
+    var marker = markers[i], linked = [marker.primary.doc]
+    linkedDocs(marker.primary.doc, function (d) { return linked.push(d); })
+    for (var j = 0; j < marker.markers.length; j++) {
+      var subMarker = marker.markers[j]
+      if (indexOf(linked, subMarker.doc) == -1) {
+        subMarker.parent = null
+        marker.markers.splice(j--, 1)
+      }
+    }
+  };
+
+  for (var i = 0; i < markers.length; i++) loop( i );
+}
+
+var nextDocId = 0
+var Doc = function(text, mode, firstLine, lineSep, direction) {
+  if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) }
+  if (firstLine == null) { firstLine = 0 }
+
+  BranchChunk.call(this, [new LeafChunk([new Line("", null)])])
+  this.first = firstLine
+  this.scrollTop = this.scrollLeft = 0
+  this.cantEdit = false
+  this.cleanGeneration = 1
+  this.frontier = firstLine
+  var start = Pos(firstLine, 0)
+  this.sel = simpleSelection(start)
+  this.history = new History(null)
+  this.id = ++nextDocId
+  this.modeOption = mode
+  this.lineSep = lineSep
+  this.direction = (direction == "rtl") ? "rtl" : "ltr"
+  this.extend = false
+
+  if (typeof text == "string") { text = this.splitLines(text) }
+  updateDoc(this, {from: start, to: start, text: text})
+  setSelection(this, simpleSelection(start), sel_dontScroll)
+}
+
+Doc.prototype = createObj(BranchChunk.prototype, {
+  constructor: Doc,
+  // Iterate over the document. Supports two forms -- with only one
+  // argument, it calls that for each line in the document. With
+  // three, it iterates over the range given by the first two (with
+  // the second being non-inclusive).
+  iter: function(from, to, op) {
+    if (op) { this.iterN(from - this.first, to - from, op) }
+    else { this.iterN(this.first, this.first + this.size, from) }
+  },
+
+  // Non-public interface for adding and removing lines.
+  insert: function(at, lines) {
+    var height = 0
+    for (var i = 0; i < lines.length; ++i) { height += lines[i].height }
+    this.insertInner(at - this.first, lines, height)
+  },
+  remove: function(at, n) { this.removeInner(at - this.first, n) },
+
+  // From here, the methods are part of the public interface. Most
+  // are also available from CodeMirror (editor) instances.
+
+  getValue: function(lineSep) {
+    var lines = getLines(this, this.first, this.first + this.size)
+    if (lineSep === false) { return lines }
+    return lines.join(lineSep || this.lineSeparator())
+  },
+  setValue: docMethodOp(function(code) {
+    var top = Pos(this.first, 0), last = this.first + this.size - 1
+    makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
+                      text: this.splitLines(code), origin: "setValue", full: true}, true)
+    setSelection(this, simpleSelection(top))
+  }),
+  replaceRange: function(code, from, to, origin) {
+    from = clipPos(this, from)
+    to = to ? clipPos(this, to) : from
+    replaceRange(this, code, from, to, origin)
+  },
+  getRange: function(from, to, lineSep) {
+    var lines = getBetween(this, clipPos(this, from), clipPos(this, to))
+    if (lineSep === false) { return lines }
+    return lines.join(lineSep || this.lineSeparator())
+  },
+
+  getLine: function(line) {var l = this.getLineHandle(line); return l && l.text},
+
+  getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }},
+  getLineNumber: function(line) {return lineNo(line)},
+
+  getLineHandleVisualStart: function(line) {
+    if (typeof line == "number") { line = getLine(this, line) }
+    return visualLine(line)
+  },
+
+  lineCount: function() {return this.size},
+  firstLine: function() {return this.first},
+  lastLine: function() {return this.first + this.size - 1},
+
+  clipPos: function(pos) {return clipPos(this, pos)},
+
+  getCursor: function(start) {
+    var range = this.sel.primary(), pos
+    if (start == null || start == "head") { pos = range.head }
+    else if (start == "anchor") { pos = range.anchor }
+    else if (start == "end" || start == "to" || start === false) { pos = range.to() }
+    else { pos = range.from() }
+    return pos
+  },
+  listSelections: function() { return this.sel.ranges },
+  somethingSelected: function() {return this.sel.somethingSelected()},
+
+  setCursor: docMethodOp(function(line, ch, options) {
+    setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options)
+  }),
+  setSelection: docMethodOp(function(anchor, head, options) {
+    setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options)
+  }),
+  extendSelection: docMethodOp(function(head, other, options) {
+    extendSelection(this, clipPos(this, head), other && clipPos(this, other), options)
+  }),
+  extendSelections: docMethodOp(function(heads, options) {
+    extendSelections(this, clipPosArray(this, heads), options)
+  }),
+  extendSelectionsBy: docMethodOp(function(f, options) {
+    var heads = map(this.sel.ranges, f)
+    extendSelections(this, clipPosArray(this, heads), options)
+  }),
+  setSelections: docMethodOp(function(ranges, primary, options) {
+    var this$1 = this;
+
+    if (!ranges.length) { return }
+    var out = []
+    for (var i = 0; i < ranges.length; i++)
+      { out[i] = new Range(clipPos(this$1, ranges[i].anchor),
+                         clipPos(this$1, ranges[i].head)) }
+    if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex) }
+    setSelection(this, normalizeSelection(out, primary), options)
+  }),
+  addSelection: docMethodOp(function(anchor, head, options) {
+    var ranges = this.sel.ranges.slice(0)
+    ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)))
+    setSelection(this, normalizeSelection(ranges, ranges.length - 1), options)
+  }),
+
+  getSelection: function(lineSep) {
+    var this$1 = this;
+
+    var ranges = this.sel.ranges, lines
+    for (var i = 0; i < ranges.length; i++) {
+      var sel = getBetween(this$1, ranges[i].from(), ranges[i].to())
+      lines = lines ? lines.concat(sel) : sel
+    }
+    if (lineSep === false) { return lines }
+    else { return lines.join(lineSep || this.lineSeparator()) }
+  },
+  getSelections: function(lineSep) {
+    var this$1 = this;
+
+    var parts = [], ranges = this.sel.ranges
+    for (var i = 0; i < ranges.length; i++) {
+      var sel = getBetween(this$1, ranges[i].from(), ranges[i].to())
+      if (lineSep !== false) { sel = sel.join(lineSep || this$1.lineSeparator()) }
+      parts[i] = sel
+    }
+    return parts
+  },
+  replaceSelection: function(code, collapse, origin) {
+    var dup = []
+    for (var i = 0; i < this.sel.ranges.length; i++)
+      { dup[i] = code }
+    this.replaceSelections(dup, collapse, origin || "+input")
+  },
+  replaceSelections: docMethodOp(function(code, collapse, origin) {
+    var this$1 = this;
+
+    var changes = [], sel = this.sel
+    for (var i = 0; i < sel.ranges.length; i++) {
+      var range = sel.ranges[i]
+      changes[i] = {from: range.from(), to: range.to(), text: this$1.splitLines(code[i]), origin: origin}
+    }
+    var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse)
+    for (var i$1 = changes.length - 1; i$1 >= 0; i$1--)
+      { makeChange(this$1, changes[i$1]) }
+    if (newSel) { setSelectionReplaceHistory(this, newSel) }
+    else if (this.cm) { ensureCursorVisible(this.cm) }
+  }),
+  undo: docMethodOp(function() {makeChangeFromHistory(this, "undo")}),
+  redo: docMethodOp(function() {makeChangeFromHistory(this, "redo")}),
+  undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true)}),
+  redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true)}),
+
+  setExtending: function(val) {this.extend = val},
+  getExtending: function() {return this.extend},
+
+  historySize: function() {
+    var hist = this.history, done = 0, undone = 0
+    for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done } }
+    for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone } }
+    return {undo: done, redo: undone}
+  },
+  clearHistory: function() {this.history = new History(this.history.maxGeneration)},
+
+  markClean: function() {
+    this.cleanGeneration = this.changeGeneration(true)
+  },
+  changeGeneration: function(forceSplit) {
+    if (forceSplit)
+      { this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null }
+    return this.history.generation
+  },
+  isClean: function (gen) {
+    return this.history.generation == (gen || this.cleanGeneration)
+  },
+
+  getHistory: function() {
+    return {done: copyHistoryArray(this.history.done),
+            undone: copyHistoryArray(this.history.undone)}
+  },
+  setHistory: function(histData) {
+    var hist = this.history = new History(this.history.maxGeneration)
+    hist.done = copyHistoryArray(histData.done.slice(0), null, true)
+    hist.undone = copyHistoryArray(histData.undone.slice(0), null, true)
+  },
+
+  setGutterMarker: docMethodOp(function(line, gutterID, value) {
+    return changeLine(this, line, "gutter", function (line) {
+      var markers = line.gutterMarkers || (line.gutterMarkers = {})
+      markers[gutterID] = value
+      if (!value && isEmpty(markers)) { line.gutterMarkers = null }
+      return true
+    })
+  }),
+
+  clearGutter: docMethodOp(function(gutterID) {
+    var this$1 = this;
+
+    this.iter(function (line) {
+      if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
+        changeLine(this$1, line, "gutter", function () {
+          line.gutterMarkers[gutterID] = null
+          if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null }
+          return true
+        })
+      }
+    })
+  }),
+
+  lineInfo: function(line) {
+    var n
+    if (typeof line == "number") {
+      if (!isLine(this, line)) { return null }
+      n = line
+      line = getLine(this, line)
+      if (!line) { return null }
+    } else {
+      n = lineNo(line)
+      if (n == null) { return null }
+    }
+    return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
+            textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
+            widgets: line.widgets}
+  },
+
+  addLineClass: docMethodOp(function(handle, where, cls) {
+    return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
+      var prop = where == "text" ? "textClass"
+               : where == "background" ? "bgClass"
+               : where == "gutter" ? "gutterClass" : "wrapClass"
+      if (!line[prop]) { line[prop] = cls }
+      else if (classTest(cls).test(line[prop])) { return false }
+      else { line[prop] += " " + cls }
+      return true
+    })
+  }),
+  removeLineClass: docMethodOp(function(handle, where, cls) {
+    return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) {
+      var prop = where == "text" ? "textClass"
+               : where == "background" ? "bgClass"
+               : where == "gutter" ? "gutterClass" : "wrapClass"
+      var cur = line[prop]
+      if (!cur) { return false }
+      else if (cls == null) { line[prop] = null }
+      else {
+        var found = cur.match(classTest(cls))
+        if (!found) { return false }
+        var end = found.index + found[0].length
+        line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null
+      }
+      return true
+    })
+  }),
+
+  addLineWidget: docMethodOp(function(handle, node, options) {
+    return addLineWidget(this, handle, node, options)
+  }),
+  removeLineWidget: function(widget) { widget.clear() },
+
+  markText: function(from, to, options) {
+    return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range")
+  },
+  setBookmark: function(pos, options) {
+    var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
+                    insertLeft: options && options.insertLeft,
+                    clearWhenEmpty: false, shared: options && options.shared,
+                    handleMouseEvents: options && options.handleMouseEvents}
+    pos = clipPos(this, pos)
+    return markText(this, pos, pos, realOpts, "bookmark")
+  },
+  findMarksAt: function(pos) {
+    pos = clipPos(this, pos)
+    var markers = [], spans = getLine(this, pos.line).markedSpans
+    if (spans) { for (var i = 0; i < spans.length; ++i) {
+      var span = spans[i]
+      if ((span.from == null || span.from <= pos.ch) &&
+          (span.to == null || span.to >= pos.ch))
+        { markers.push(span.marker.parent || span.marker) }
+    } }
+    return markers
+  },
+  findMarks: function(from, to, filter) {
+    from = clipPos(this, from); to = clipPos(this, to)
+    var found = [], lineNo = from.line
+    this.iter(from.line, to.line + 1, function (line) {
+      var spans = line.markedSpans
+      if (spans) { for (var i = 0; i < spans.length; i++) {
+        var span = spans[i]
+        if (!(span.to != null && lineNo == from.line && from.ch >= span.to ||
+              span.from == null && lineNo != from.line ||
+              span.from != null && lineNo == to.line && span.from >= to.ch) &&
+            (!filter || filter(span.marker)))
+          { found.push(span.marker.parent || span.marker) }
+      } }
+      ++lineNo
+    })
+    return found
+  },
+  getAllMarks: function() {
+    var markers = []
+    this.iter(function (line) {
+      var sps = line.markedSpans
+      if (sps) { for (var i = 0; i < sps.length; ++i)
+        { if (sps[i].from != null) { markers.push(sps[i].marker) } } }
+    })
+    return markers
+  },
+
+  posFromIndex: function(off) {
+    var ch, lineNo = this.first, sepSize = this.lineSeparator().length
+    this.iter(function (line) {
+      var sz = line.text.length + sepSize
+      if (sz > off) { ch = off; return true }
+      off -= sz
+      ++lineNo
+    })
+    return clipPos(this, Pos(lineNo, ch))
+  },
+  indexFromPos: function (coords) {
+    coords = clipPos(this, coords)
+    var index = coords.ch
+    if (coords.line < this.first || coords.ch < 0) { return 0 }
+    var sepSize = this.lineSeparator().length
+    this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value
+      index += line.text.length + sepSize
+    })
+    return index
+  },
+
+  copy: function(copyHistory) {
+    var doc = new Doc(getLines(this, this.first, this.first + this.size),
+                      this.modeOption, this.first, this.lineSep, this.direction)
+    doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft
+    doc.sel = this.sel
+    doc.extend = false
+    if (copyHistory) {
+      doc.history.undoDepth = this.history.undoDepth
+      doc.setHistory(this.getHistory())
+    }
+    return doc
+  },
+
+  linkedDoc: function(options) {
+    if (!options) { options = {} }
+    var from = this.first, to = this.first + this.size
+    if (options.from != null && options.from > from) { from = options.from }
+    if (options.to != null && options.to < to) { to = options.to }
+    var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction)
+    if (options.sharedHist) { copy.history = this.history
+    ; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist})
+    copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}]
+    copySharedMarkers(copy, findSharedMarkers(this))
+    return copy
+  },
+  unlinkDoc: function(other) {
+    var this$1 = this;
+
+    if (other instanceof CodeMirror) { other = other.doc }
+    if (this.linked) { for (var i = 0; i < this.linked.length; ++i) {
+      var link = this$1.linked[i]
+      if (link.doc != other) { continue }
+      this$1.linked.splice(i, 1)
+      other.unlinkDoc(this$1)
+      detachSharedMarkers(findSharedMarkers(this$1))
+      break
+    } }
+    // If the histories were shared, split them again
+    if (other.history == this.history) {
+      var splitIds = [other.id]
+      linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true)
+      other.history = new History(null)
+      other.history.done = copyHistoryArray(this.history.done, splitIds)
+      other.history.undone = copyHistoryArray(this.history.undone, splitIds)
+    }
+  },
+  iterLinkedDocs: function(f) {linkedDocs(this, f)},
+
+  getMode: function() {return this.mode},
+  getEditor: function() {return this.cm},
+
+  splitLines: function(str) {
+    if (this.lineSep) { return str.split(this.lineSep) }
+    return splitLinesAuto(str)
+  },
+  lineSeparator: function() { return this.lineSep || "\n" },
+
+  setDirection: docMethodOp(function (dir) {
+    if (dir != "rtl") { dir = "ltr" }
+    if (dir == this.direction) { return }
+    this.direction = dir
+    this.iter(function (line) { return line.order = null; })
+    if (this.cm) { directionChanged(this.cm) }
+  })
+})
+
+// Public alias.
+Doc.prototype.eachLine = Doc.prototype.iter
+
+// Kludge to work around strange IE behavior where it'll sometimes
+// re-fire a series of drag-related events right after the drop (#1551)
+var lastDrop = 0
+
+function onDrop(e) {
+  var cm = this
+  clearDragCursor(cm)
+  if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
+    { return }
+  e_preventDefault(e)
+  if (ie) { lastDrop = +new Date }
+  var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files
+  if (!pos || cm.isReadOnly()) { return }
+  // Might be a file drop, in which case we simply extract the text
+  // and insert it.
+  if (files && files.length && window.FileReader && window.File) {
+    var n = files.length, text = Array(n), read = 0
+    var loadFile = function (file, i) {
+      if (cm.options.allowDropFileTypes &&
+          indexOf(cm.options.allowDropFileTypes, file.type) == -1)
+        { return }
+
+      var reader = new FileReader
+      reader.onload = operation(cm, function () {
+        var content = reader.result
+        if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) { content = "" }
+        text[i] = content
+        if (++read == n) {
+          pos = clipPos(cm.doc, pos)
+          var change = {from: pos, to: pos,
+                        text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())),
+                        origin: "paste"}
+          makeChange(cm.doc, change)
+          setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change)))
+        }
+      })
+      reader.readAsText(file)
+    }
+    for (var i = 0; i < n; ++i) { loadFile(files[i], i) }
+  } else { // Normal drop
+    // Don't do a replace if the drop happened inside of the selected text.
+    if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
+      cm.state.draggingText(e)
+      // Ensure the editor is re-focused
+      setTimeout(function () { return cm.display.input.focus(); }, 20)
+      return
+    }
+    try {
+      var text$1 = e.dataTransfer.getData("Text")
+      if (text$1) {
+        var selected
+        if (cm.state.draggingText && !cm.state.draggingText.copy)
+          { selected = cm.listSelections() }
+        setSelectionNoUndo(cm.doc, simpleSelection(pos, pos))
+        if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1)
+          { replaceRange(cm.doc, "", selected[i$1].anchor, selected[i$1].head, "drag") } }
+        cm.replaceSelection(text$1, "around", "paste")
+        cm.display.input.focus()
+      }
+    }
+    catch(e){}
+  }
+}
+
+function onDragStart(cm, e) {
+  if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return }
+  if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return }
+
+  e.dataTransfer.setData("Text", cm.getSelection())
+  e.dataTransfer.effectAllowed = "copyMove"
+
+  // Use dummy image instead of default browsers image.
+  // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
+  if (e.dataTransfer.setDragImage && !safari) {
+    var img = elt("img", null, null, "position: fixed; left: 0; top: 0;")
+    img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="
+    if (presto) {
+      img.width = img.height = 1
+      cm.display.wrapper.appendChild(img)
+      // Force a relayout, or Opera won't use our image for some obscure reason
+      img._top = img.offsetTop
+    }
+    e.dataTransfer.setDragImage(img, 0, 0)
+    if (presto) { img.parentNode.removeChild(img) }
+  }
+}
+
+function onDragOver(cm, e) {
+  var pos = posFromMouse(cm, e)
+  if (!pos) { return }
+  var frag = document.createDocumentFragment()
+  drawSelectionCursor(cm, pos, frag)
+  if (!cm.display.dragCursor) {
+    cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors")
+    cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv)
+  }
+  removeChildrenAndAdd(cm.display.dragCursor, frag)
+}
+
+function clearDragCursor(cm) {
+  if (cm.display.dragCursor) {
+    cm.display.lineSpace.removeChild(cm.display.dragCursor)
+    cm.display.dragCursor = null
+  }
+}
+
+// These must be handled carefully, because naively registering a
+// handler for each editor will cause the editors to never be
+// garbage collected.
+
+function forEachCodeMirror(f) {
+  if (!document.body.getElementsByClassName) { return }
+  var byClass = document.body.getElementsByClassName("CodeMirror")
+  for (var i = 0; i < byClass.length; i++) {
+    var cm = byClass[i].CodeMirror
+    if (cm) { f(cm) }
+  }
+}
+
+var globalsRegistered = false
+function ensureGlobalHandlers() {
+  if (globalsRegistered) { return }
+  registerGlobalHandlers()
+  globalsRegistered = true
+}
+function registerGlobalHandlers() {
+  // When the window resizes, we need to refresh active editors.
+  var resizeTimer
+  on(window, "resize", function () {
+    if (resizeTimer == null) { resizeTimer = setTimeout(function () {
+      resizeTimer = null
+      forEachCodeMirror(onResize)
+    }, 100) }
+  })
+  // When the window loses focus, we want to show the editor as blurred
+  on(window, "blur", function () { return forEachCodeMirror(onBlur); })
+}
+// Called when the window resizes
+function onResize(cm) {
+  var d = cm.display
+  if (d.lastWrapHeight == d.wrapper.clientHeight && d.lastWrapWidth == d.wrapper.clientWidth)
+    { return }
+  // Might be a text scaling operation, clear size caches.
+  d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null
+  d.scrollbarsClipped = false
+  cm.setSize()
+}
+
+var keyNames = {
+  3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
+  19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
+  36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
+  46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod",
+  106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 127: "Delete",
+  173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
+  221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
+  63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"
+}
+
+// Number keys
+for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i) }
+// Alphabetic keys
+for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1) }
+// Function keys
+for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = "F" + i$2 }
+
+var keyMap = {}
+
+keyMap.basic = {
+  "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
+  "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
+  "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
+  "Tab": "defaultTab", "Shift-Tab": "indentAuto",
+  "Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
+  "Esc": "singleSelection"
+}
+// Note that the save and find-related commands aren't defined by
+// default. User code or addons can define them. Unknown commands
+// are simply ignored.
+keyMap.pcDefault = {
+  "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
+  "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
+  "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
+  "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
+  "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
+  "Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
+  "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
+  fallthrough: "basic"
+}
+// Very basic readline/emacs-style bindings, which are standard on Mac.
+keyMap.emacsy = {
+  "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
+  "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
+  "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore",
+  "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars",
+  "Ctrl-O": "openLine"
+}
+keyMap.macDefault = {
+  "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
+  "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
+  "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
+  "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
+  "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
+  "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
+  "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
+  fallthrough: ["basic", "emacsy"]
+}
+keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault
+
+// KEYMAP DISPATCH
+
+function normalizeKeyName(name) {
+  var parts = name.split(/-(?!$)/)
+  name = parts[parts.length - 1]
+  var alt, ctrl, shift, cmd
+  for (var i = 0; i < parts.length - 1; i++) {
+    var mod = parts[i]
+    if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true }
+    else if (/^a(lt)?$/i.test(mod)) { alt = true }
+    else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true }
+    else if (/^s(hift)?$/i.test(mod)) { shift = true }
+    else { throw new Error("Unrecognized modifier name: " + mod) }
+  }
+  if (alt) { name = "Alt-" + name }
+  if (ctrl) { name = "Ctrl-" + name }
+  if (cmd) { name = "Cmd-" + name }
+  if (shift) { name = "Shift-" + name }
+  return name
+}
+
+// This is a kludge to keep keymaps mostly working as raw objects
+// (backwards compatibility) while at the same time support features
+// like normalization and multi-stroke key bindings. It compiles a
+// new normalized keymap, and then updates the old object to reflect
+// this.
+function normalizeKeyMap(keymap) {
+  var copy = {}
+  for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) {
+    var value = keymap[keyname]
+    if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue }
+    if (value == "...") { delete keymap[keyname]; continue }
+
+    var keys = map(keyname.split(" "), normalizeKeyName)
+    for (var i = 0; i < keys.length; i++) {
+      var val = (void 0), name = (void 0)
+      if (i == keys.length - 1) {
+        name = keys.join(" ")
+        val = value
+      } else {
+        name = keys.slice(0, i + 1).join(" ")
+        val = "..."
+      }
+      var prev = copy[name]
+      if (!prev) { copy[name] = val }
+      else if (prev != val) { throw new Error("Inconsistent bindings for " + name) }
+    }
+    delete keymap[keyname]
+  } }
+  for (var prop in copy) { keymap[prop] = copy[prop] }
+  return keymap
+}
+
+function lookupKey(key, map, handle, context) {
+  map = getKeyMap(map)
+  var found = map.call ? map.call(key, context) : map[key]
+  if (found === false) { return "nothing" }
+  if (found === "...") { return "multi" }
+  if (found != null && handle(found)) { return "handled" }
+
+  if (map.fallthrough) {
+    if (Object.prototype.toString.call(map.fallthrough) != "[object Array]")
+      { return lookupKey(key, map.fallthrough, handle, context) }
+    for (var i = 0; i < map.fallthrough.length; i++) {
+      var result = lookupKey(key, map.fallthrough[i], handle, context)
+      if (result) { return result }
+    }
+  }
+}
+
+// Modifier key presses don't count as 'real' key presses for the
+// purpose of keymap fallthrough.
+function isModifierKey(value) {
+  var name = typeof value == "string" ? value : keyNames[value.keyCode]
+  return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"
+}
+
+// Look up the name of a key as indicated by an event object.
+function keyName(event, noShift) {
+  if (presto && event.keyCode == 34 && event["char"]) { return false }
+  var base = keyNames[event.keyCode], name = base
+  if (name == null || event.altGraphKey) { return false }
+  if (event.altKey && base != "Alt") { name = "Alt-" + name }
+  if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") { name = "Ctrl-" + name }
+  if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") { name = "Cmd-" + name }
+  if (!noShift && event.shiftKey && base != "Shift") { name = "Shift-" + name }
+  return name
+}
+
+function getKeyMap(val) {
+  return typeof val == "string" ? keyMap[val] : val
+}
+
+// Helper for deleting text near the selection(s), used to implement
+// backspace, delete, and similar functionality.
+function deleteNearSelection(cm, compute) {
+  var ranges = cm.doc.sel.ranges, kill = []
+  // Build up a set of ranges to kill first, merging overlapping
+  // ranges.
+  for (var i = 0; i < ranges.length; i++) {
+    var toKill = compute(ranges[i])
+    while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
+      var replaced = kill.pop()
+      if (cmp(replaced.from, toKill.from) < 0) {
+        toKill.from = replaced.from
+        break
+      }
+    }
+    kill.push(toKill)
+  }
+  // Next, remove those actual ranges.
+  runInOp(cm, function () {
+    for (var i = kill.length - 1; i >= 0; i--)
+      { replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete") }
+    ensureCursorVisible(cm)
+  })
+}
+
+// Commands are parameter-less actions that can be performed on an
+// editor, mostly used for keybindings.
+var commands = {
+  selectAll: selectAll,
+  singleSelection: function (cm) { return cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); },
+  killLine: function (cm) { return deleteNearSelection(cm, function (range) {
+    if (range.empty()) {
+      var len = getLine(cm.doc, range.head.line).text.length
+      if (range.head.ch == len && range.head.line < cm.lastLine())
+        { return {from: range.head, to: Pos(range.head.line + 1, 0)} }
+      else
+        { return {from: range.head, to: Pos(range.head.line, len)} }
+    } else {
+      return {from: range.from(), to: range.to()}
+    }
+  }); },
+  deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({
+    from: Pos(range.from().line, 0),
+    to: clipPos(cm.doc, Pos(range.to().line + 1, 0))
+  }); }); },
+  delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({
+    from: Pos(range.from().line, 0), to: range.from()
+  }); }); },
+  delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) {
+    var top = cm.charCoords(range.head, "div").top + 5
+    var leftPos = cm.coordsChar({left: 0, top: top}, "div")
+    return {from: leftPos, to: range.from()}
+  }); },
+  delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) {
+    var top = cm.charCoords(range.head, "div").top + 5
+    var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")
+    return {from: range.from(), to: rightPos }
+  }); },
+  undo: function (cm) { return cm.undo(); },
+  redo: function (cm) { return cm.redo(); },
+  undoSelection: function (cm) { return cm.undoSelection(); },
+  redoSelection: function (cm) { return cm.redoSelection(); },
+  goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); },
+  goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); },
+  goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); },
+    {origin: "+move", bias: 1}
+  ); },
+  goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); },
+    {origin: "+move", bias: 1}
+  ); },
+  goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); },
+    {origin: "+move", bias: -1}
+  ); },
+  goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) {
+    var top = cm.charCoords(range.head, "div").top + 5
+    return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")
+  }, sel_move); },
+  goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) {
+    var top = cm.charCoords(range.head, "div").top + 5
+    return cm.coordsChar({left: 0, top: top}, "div")
+  }, sel_move); },
+  goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) {
+    var top = cm.charCoords(range.head, "div").top + 5
+    var pos = cm.coordsChar({left: 0, top: top}, "div")
+    if (pos.ch < cm.getLine(pos.line).search(/\S/)) { return lineStartSmart(cm, range.head) }
+    return pos
+  }, sel_move); },
+  goLineUp: function (cm) { return cm.moveV(-1, "line"); },
+  goLineDown: function (cm) { return cm.moveV(1, "line"); },
+  goPageUp: function (cm) { return cm.moveV(-1, "page"); },
+  goPageDown: function (cm) { return cm.moveV(1, "page"); },
+  goCharLeft: function (cm) { return cm.moveH(-1, "char"); },
+  goCharRight: function (cm) { return cm.moveH(1, "char"); },
+  goColumnLeft: function (cm) { return cm.moveH(-1, "column"); },
+  goColumnRight: function (cm) { return cm.moveH(1, "column"); },
+  goWordLeft: function (cm) { return cm.moveH(-1, "word"); },
+  goGroupRight: function (cm) { return cm.moveH(1, "group"); },
+  goGroupLeft: function (cm) { return cm.moveH(-1, "group"); },
+  goWordRight: function (cm) { return cm.moveH(1, "word"); },
+  delCharBefore: function (cm) { return cm.deleteH(-1, "char"); },
+  delCharAfter: function (cm) { return cm.deleteH(1, "char"); },
+  delWordBefore: function (cm) { return cm.deleteH(-1, "word"); },
+  delWordAfter: function (cm) { return cm.deleteH(1, "word"); },
+  delGroupBefore: function (cm) { return cm.deleteH(-1, "group"); },
+  delGroupAfter: function (cm) { return cm.deleteH(1, "group"); },
+  indentAuto: function (cm) { return cm.indentSelection("smart"); },
+  indentMore: function (cm) { return cm.indentSelection("add"); },
+  indentLess: function (cm) { return cm.indentSelection("subtract"); },
+  insertTab: function (cm) { return cm.replaceSelection("\t"); },
+  insertSoftTab: function (cm) {
+    var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize
+    for (var i = 0; i < ranges.length; i++) {
+      var pos = ranges[i].from()
+      var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize)
+      spaces.push(spaceStr(tabSize - col % tabSize))
+    }
+    cm.replaceSelections(spaces)
+  },
+  defaultTab: function (cm) {
+    if (cm.somethingSelected()) { cm.indentSelection("add") }
+    else { cm.execCommand("insertTab") }
+  },
+  // Swap the two chars left and right of each selection's head.
+  // Move cursor behind the two swapped characters afterwards.
+  //
+  // Doesn't consider line feeds a character.
+  // Doesn't scan more than one line above to find a character.
+  // Doesn't do anything on an empty line.
+  // Doesn't do anything with non-empty selections.
+  transposeChars: function (cm) { return runInOp(cm, function () {
+    var ranges = cm.listSelections(), newSel = []
+    for (var i = 0; i < ranges.length; i++) {
+      if (!ranges[i].empty()) { continue }
+      var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text
+      if (line) {
+        if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1) }
+        if (cur.ch > 0) {
+          cur = new Pos(cur.line, cur.ch + 1)
+          cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
+                          Pos(cur.line, cur.ch - 2), cur, "+transpose")
+        } else if (cur.line > cm.doc.first) {
+          var prev = getLine(cm.doc, cur.line - 1).text
+          if (prev) {
+            cur = new Pos(cur.line, 1)
+            cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +
+                            prev.charAt(prev.length - 1),
+                            Pos(cur.line - 1, prev.length - 1), cur, "+transpose")
+          }
+        }
+      }
+      newSel.push(new Range(cur, cur))
+    }
+    cm.setSelections(newSel)
+  }); },
+  newlineAndIndent: function (cm) { return runInOp(cm, function () {
+    var sels = cm.listSelections()
+    for (var i = sels.length - 1; i >= 0; i--)
+      { cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, "+input") }
+    sels = cm.listSelections()
+    for (var i$1 = 0; i$1 < sels.length; i$1++)
+      { cm.indentLine(sels[i$1].from().line, null, true) }
+    ensureCursorVisible(cm)
+  }); },
+  openLine: function (cm) { return cm.replaceSelection("\n", "start"); },
+  toggleOverwrite: function (cm) { return cm.toggleOverwrite(); }
+}
+
+
+function lineStart(cm, lineN) {
+  var line = getLine(cm.doc, lineN)
+  var visual = visualLine(line)
+  if (visual != line) { lineN = lineNo(visual) }
+  return endOfLine(true, cm, visual, lineN, 1)
+}
+function lineEnd(cm, lineN) {
+  var line = getLine(cm.doc, lineN)
+  var visual = visualLineEnd(line)
+  if (visual != line) { lineN = lineNo(visual) }
+  return endOfLine(true, cm, line, lineN, -1)
+}
+function lineStartSmart(cm, pos) {
+  var start = lineStart(cm, pos.line)
+  var line = getLine(cm.doc, start.line)
+  var order = getOrder(line, cm.doc.direction)
+  if (!order || order[0].level == 0) {
+    var firstNonWS = Math.max(0, line.text.search(/\S/))
+    var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch
+    return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky)
+  }
+  return start
+}
+
+// Run a handler that was bound to a key.
+function doHandleBinding(cm, bound, dropShift) {
+  if (typeof bound == "string") {
+    bound = commands[bound]
+    if (!bound) { return false }
+  }
+  // Ensure previous input has been read, so that the handler sees a
+  // consistent view of the document
+  cm.display.input.ensurePolled()
+  var prevShift = cm.display.shift, done = false
+  try {
+    if (cm.isReadOnly()) { cm.state.suppressEdits = true }
+    if (dropShift) { cm.display.shift = false }
+    done = bound(cm) != Pass
+  } finally {
+    cm.display.shift = prevShift
+    cm.state.suppressEdits = false
+  }
+  return done
+}
+
+function lookupKeyForEditor(cm, name, handle) {
+  for (var i = 0; i < cm.state.keyMaps.length; i++) {
+    var result = lookupKey(name, cm.state.keyMaps[i], handle, cm)
+    if (result) { return result }
+  }
+  return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))
+    || lookupKey(name, cm.options.keyMap, handle, cm)
+}
+
+var stopSeq = new Delayed
+function dispatchKey(cm, name, e, handle) {
+  var seq = cm.state.keySeq
+  if (seq) {
+    if (isModifierKey(name)) { return "handled" }
+    stopSeq.set(50, function () {
+      if (cm.state.keySeq == seq) {
+        cm.state.keySeq = null
+        cm.display.input.reset()
+      }
+    })
+    name = seq + " " + name
+  }
+  var result = lookupKeyForEditor(cm, name, handle)
+
+  if (result == "multi")
+    { cm.state.keySeq = name }
+  if (result == "handled")
+    { signalLater(cm, "keyHandled", cm, name, e) }
+
+  if (result == "handled" || result == "multi") {
+    e_preventDefault(e)
+    restartBlink(cm)
+  }
+
+  if (seq && !result && /\'$/.test(name)) {
+    e_preventDefault(e)
+    return true
+  }
+  return !!result
+}
+
+// Handle a key from the keydown event.
+function handleKeyBinding(cm, e) {
+  var name = keyName(e, true)
+  if (!name) { return false }
+
+  if (e.shiftKey && !cm.state.keySeq) {
+    // First try to resolve full name (including 'Shift-'). Failing
+    // that, see if there is a cursor-motion command (starting with
+    // 'go') bound to the keyname without 'Shift-'.
+    return dispatchKey(cm, "Shift-" + name, e, function (b) { return doHandleBinding(cm, b, true); })
+        || dispatchKey(cm, name, e, function (b) {
+             if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
+               { return doHandleBinding(cm, b) }
+           })
+  } else {
+    return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); })
+  }
+}
+
+// Handle a key from the keypress event
+function handleCharBinding(cm, e, ch) {
+  return dispatchKey(cm, "'" + ch + "'", e, function (b) { return doHandleBinding(cm, b, true); })
+}
+
+var lastStoppedKey = null
+function onKeyDown(e) {
+  var cm = this
+  cm.curOp.focus = activeElt()
+  if (signalDOMEvent(cm, e)) { return }
+  // IE does strange things with escape.
+  if (ie && ie_version < 11 && e.keyCode == 27) { e.returnValue = false }
+  var code = e.keyCode
+  cm.display.shift = code == 16 || e.shiftKey
+  var handled = handleKeyBinding(cm, e)
+  if (presto) {
+    lastStoppedKey = handled ? code : null
+    // Opera has no cut event... we try to at least catch the key combo
+    if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
+      { cm.replaceSelection("", null, "cut") }
+  }
+
+  // Turn mouse into crosshair when Alt is held on Mac.
+  if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
+    { showCrossHair(cm) }
+}
+
+function showCrossHair(cm) {
+  var lineDiv = cm.display.lineDiv
+  addClass(lineDiv, "CodeMirror-crosshair")
+
+  function up(e) {
+    if (e.keyCode == 18 || !e.altKey) {
+      rmClass(lineDiv, "CodeMirror-crosshair")
+      off(document, "keyup", up)
+      off(document, "mouseover", up)
+    }
+  }
+  on(document, "keyup", up)
+  on(document, "mouseover", up)
+}
+
+function onKeyUp(e) {
+  if (e.keyCode == 16) { this.doc.sel.shift = false }
+  signalDOMEvent(this, e)
+}
+
+function onKeyPress(e) {
+  var cm = this
+  if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) { return }
+  var keyCode = e.keyCode, charCode = e.charCode
+  if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return}
+  if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) { return }
+  var ch = String.fromCharCode(charCode == null ? keyCode : charCode)
+  // Some browsers fire keypress events for backspace
+  if (ch == "\x08") { return }
+  if (handleCharBinding(cm, e, ch)) { return }
+  cm.display.input.onKeyPress(e)
+}
+
+// A mouse down can be a single click, double click, triple click,
+// start of selection drag, start of text drag, new cursor
+// (ctrl-click), rectangle drag (alt-drag), or xwin
+// middle-click-paste. Or it might be a click on something we should
+// not interfere with, such as a scrollbar or widget.
+function onMouseDown(e) {
+  var cm = this, display = cm.display
+  if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return }
+  display.input.ensurePolled()
+  display.shift = e.shiftKey
+
+  if (eventInWidget(display, e)) {
+    if (!webkit) {
+      // Briefly turn off draggability, to allow widgets to do
+      // normal dragging things.
+      display.scroller.draggable = false
+      setTimeout(function () { return display.scroller.draggable = true; }, 100)
+    }
+    return
+  }
+  if (clickInGutter(cm, e)) { return }
+  var start = posFromMouse(cm, e)
+  window.focus()
+
+  switch (e_button(e)) {
+  case 1:
+    // #3261: make sure, that we're not starting a second selection
+    if (cm.state.selectingText)
+      { cm.state.selectingText(e) }
+    else if (start)
+      { leftButtonDown(cm, e, start) }
+    else if (e_target(e) == display.scroller)
+      { e_preventDefault(e) }
+    break
+  case 2:
+    if (webkit) { cm.state.lastMiddleDown = +new Date }
+    if (start) { extendSelection(cm.doc, start) }
+    setTimeout(function () { return display.input.focus(); }, 20)
+    e_preventDefault(e)
+    break
+  case 3:
+    if (captureRightClick) { onContextMenu(cm, e) }
+    else { delayBlurEvent(cm) }
+    break
+  }
+}
+
+var lastClick;
+var lastDoubleClick;
+function leftButtonDown(cm, e, start) {
+  if (ie) { setTimeout(bind(ensureFocus, cm), 0) }
+  else { cm.curOp.focus = activeElt() }
+
+  var now = +new Date, type
+  if (lastDoubleClick && lastDoubleClick.time > now - 400 && cmp(lastDoubleClick.pos, start) == 0) {
+    type = "triple"
+  } else if (lastClick && lastClick.time > now - 400 && cmp(lastClick.pos, start) == 0) {
+    type = "double"
+    lastDoubleClick = {time: now, pos: start}
+  } else {
+    type = "single"
+    lastClick = {time: now, pos: start}
+  }
+
+  var sel = cm.doc.sel, modifier = mac ? e.metaKey : e.ctrlKey, contained
+  if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() &&
+      type == "single" && (contained = sel.contains(start)) > -1 &&
+      (cmp((contained = sel.ranges[contained]).from(), start) < 0 || start.xRel > 0) &&
+      (cmp(contained.to(), start) > 0 || start.xRel < 0))
+    { leftButtonStartDrag(cm, e, start, modifier) }
+  else
+    { leftButtonSelect(cm, e, start, type, modifier) }
+}
+
+// Start a text drag. When it ends, see if any dragging actually
+// happen, and treat as a click if it didn't.
+function leftButtonStartDrag(cm, e, start, modifier) {
+  var display = cm.display, startTime = +new Date
+  var dragEnd = operation(cm, function (e2) {
+    if (webkit) { display.scroller.draggable = false }
+    cm.state.draggingText = false
+    off(document, "mouseup", dragEnd)
+    off(display.scroller, "drop", dragEnd)
+    if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) {
+      e_preventDefault(e2)
+      if (!modifier && +new Date - 200 < startTime)
+        { extendSelection(cm.doc, start) }
+      // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)
+      if (webkit || ie && ie_version == 9)
+        { setTimeout(function () {document.body.focus(); display.input.focus()}, 20) }
+      else
+        { display.input.focus() }
+    }
+  })
+  // Let the drag handler handle this.
+  if (webkit) { display.scroller.draggable = true }
+  cm.state.draggingText = dragEnd
+  dragEnd.copy = mac ? e.altKey : e.ctrlKey
+  // IE's approach to draggable
+  if (display.scroller.dragDrop) { display.scroller.dragDrop() }
+  on(document, "mouseup", dragEnd)
+  on(display.scroller, "drop", dragEnd)
+}
+
+// Normal selection, as opposed to text dragging.
+function leftButtonSelect(cm, e, start, type, addNew) {
+  var display = cm.display, doc = cm.doc
+  e_preventDefault(e)
+
+  var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges
+  if (addNew && !e.shiftKey) {
+    ourIndex = doc.sel.contains(start)
+    if (ourIndex > -1)
+      { ourRange = ranges[ourIndex] }
+    else
+      { ourRange = new Range(start, start) }
+  } else {
+    ourRange = doc.sel.primary()
+    ourIndex = doc.sel.primIndex
+  }
+
+  if (chromeOS ? e.shiftKey && e.metaKey : e.altKey) {
+    type = "rect"
+    if (!addNew) { ourRange = new Range(start, start) }
+    start = posFromMouse(cm, e, true, true)
+    ourIndex = -1
+  } else if (type == "double") {
+    var word = cm.findWordAt(start)
+    if (cm.display.shift || doc.extend)
+      { ourRange = extendRange(doc, ourRange, word.anchor, word.head) }
+    else
+      { ourRange = word }
+  } else if (type == "triple") {
+    var line = new Range(Pos(start.line, 0), clipPos(doc, Pos(start.line + 1, 0)))
+    if (cm.display.shift || doc.extend)
+      { ourRange = extendRange(doc, ourRange, line.anchor, line.head) }
+    else
+      { ourRange = line }
+  } else {
+    ourRange = extendRange(doc, ourRange, start)
+  }
+
+  if (!addNew) {
+    ourIndex = 0
+    setSelection(doc, new Selection([ourRange], 0), sel_mouse)
+    startSel = doc.sel
+  } else if (ourIndex == -1) {
+    ourIndex = ranges.length
+    setSelection(doc, normalizeSelection(ranges.concat([ourRange]), ourIndex),
+                 {scroll: false, origin: "*mouse"})
+  } else if (ranges.length > 1 && ranges[ourIndex].empty() && type == "single" && !e.shiftKey) {
+    setSelection(doc, normalizeSelection(ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),
+                 {scroll: false, origin: "*mouse"})
+    startSel = doc.sel
+  } else {
+    replaceOneSelection(doc, ourIndex, ourRange, sel_mouse)
+  }
+
+  var lastPos = start
+  function extendTo(pos) {
+    if (cmp(lastPos, pos) == 0) { return }
+    lastPos = pos
+
+    if (type == "rect") {
+      var ranges = [], tabSize = cm.options.tabSize
+      var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize)
+      var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize)
+      var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol)
+      for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
+           line <= end; line++) {
+        var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize)
+        if (left == right)
+          { ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))) }
+        else if (text.length > leftPos)
+          { ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))) }
+      }
+      if (!ranges.length) { ranges.push(new Range(start, start)) }
+      setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),
+                   {origin: "*mouse", scroll: false})
+      cm.scrollIntoView(pos)
+    } else {
+      var oldRange = ourRange
+      var anchor = oldRange.anchor, head = pos
+      if (type != "single") {
+        var range
+        if (type == "double")
+          { range = cm.findWordAt(pos) }
+        else
+          { range = new Range(Pos(pos.line, 0), clipPos(doc, Pos(pos.line + 1, 0))) }
+        if (cmp(range.anchor, anchor) > 0) {
+          head = range.head
+          anchor = minPos(oldRange.from(), range.anchor)
+        } else {
+          head = range.anchor
+          anchor = maxPos(oldRange.to(), range.head)
+        }
+      }
+      var ranges$1 = startSel.ranges.slice(0)
+      ranges$1[ourIndex] = new Range(clipPos(doc, anchor), head)
+      setSelection(doc, normalizeSelection(ranges$1, ourIndex), sel_mouse)
+    }
+  }
+
+  var editorSize = display.wrapper.getBoundingClientRect()
+  // Used to ensure timeout re-tries don't fire when another extend
+  // happened in the meantime (clearTimeout isn't reliable -- at
+  // least on Chrome, the timeouts still happen even when cleared,
+  // if the clear happens after their scheduled firing time).
+  var counter = 0
+
+  function extend(e) {
+    var curCount = ++counter
+    var cur = posFromMouse(cm, e, true, type == "rect")
+    if (!cur) { return }
+    if (cmp(cur, lastPos) != 0) {
+      cm.curOp.focus = activeElt()
+      extendTo(cur)
+      var visible = visibleLines(display, doc)
+      if (cur.line >= visible.to || cur.line < visible.from)
+        { setTimeout(operation(cm, function () {if (counter == curCount) { extend(e) }}), 150) }
+    } else {
+      var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0
+      if (outside) { setTimeout(operation(cm, function () {
+        if (counter != curCount) { return }
+        display.scroller.scrollTop += outside
+        extend(e)
+      }), 50) }
+    }
+  }
+
+  function done(e) {
+    cm.state.selectingText = false
+    counter = Infinity
+    e_preventDefault(e)
+    display.input.focus()
+    off(document, "mousemove", move)
+    off(document, "mouseup", up)
+    doc.history.lastSelOrigin = null
+  }
+
+  var move = operation(cm, function (e) {
+    if (!e_button(e)) { done(e) }
+    else { extend(e) }
+  })
+  var up = operation(cm, done)
+  cm.state.selectingText = up
+  on(document, "mousemove", move)
+  on(document, "mouseup", up)
+}
+
+
+// Determines whether an event happened in the gutter, and fires the
+// handlers for the corresponding event.
+function gutterEvent(cm, e, type, prevent) {
+  var mX, mY
+  try { mX = e.clientX; mY = e.clientY }
+  catch(e) { return false }
+  if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false }
+  if (prevent) { e_preventDefault(e) }
+
+  var display = cm.display
+  var lineBox = display.lineDiv.getBoundingClientRect()
+
+  if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) }
+  mY -= lineBox.top - display.viewOffset
+
+  for (var i = 0; i < cm.options.gutters.length; ++i) {
+    var g = display.gutters.childNodes[i]
+    if (g && g.getBoundingClientRect().right >= mX) {
+      var line = lineAtHeight(cm.doc, mY)
+      var gutter = cm.options.gutters[i]
+      signal(cm, type, cm, line, gutter, e)
+      return e_defaultPrevented(e)
+    }
+  }
+}
+
+function clickInGutter(cm, e) {
+  return gutterEvent(cm, e, "gutterClick", true)
+}
+
+// CONTEXT MENU HANDLING
+
+// To make the context menu work, we need to briefly unhide the
+// textarea (making it as unobtrusive as possible) to let the
+// right-click take effect on it.
+function onContextMenu(cm, e) {
+  if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return }
+  if (signalDOMEvent(cm, e, "contextmenu")) { return }
+  cm.display.input.onContextMenu(e)
+}
+
+function contextMenuInGutter(cm, e) {
+  if (!hasHandler(cm, "gutterContextMenu")) { return false }
+  return gutterEvent(cm, e, "gutterContextMenu", false)
+}
+
+function themeChanged(cm) {
+  cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
+    cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-")
+  clearCaches(cm)
+}
+
+var Init = {toString: function(){return "CodeMirror.Init"}}
+
+var defaults = {}
+var optionHandlers = {}
+
+function defineOptions(CodeMirror) {
+  var optionHandlers = CodeMirror.optionHandlers
+
+  function option(name, deflt, handle, notOnInit) {
+    CodeMirror.defaults[name] = deflt
+    if (handle) { optionHandlers[name] =
+      notOnInit ? function (cm, val, old) {if (old != Init) { handle(cm, val, old) }} : handle }
+  }
+
+  CodeMirror.defineOption = option
+
+  // Passed to option handlers when there is no old value.
+  CodeMirror.Init = Init
+
+  // These two are, on init, called from the constructor because they
+  // have to be initialized before the editor can start at all.
+  option("value", "", function (cm, val) { return cm.setValue(val); }, true)
+  option("mode", null, function (cm, val) {
+    cm.doc.modeOption = val
+    loadMode(cm)
+  }, true)
+
+  option("indentUnit", 2, loadMode, true)
+  option("indentWithTabs", false)
+  option("smartIndent", true)
+  option("tabSize", 4, function (cm) {
+    resetModeState(cm)
+    clearCaches(cm)
+    regChange(cm)
+  }, true)
+  option("lineSeparator", null, function (cm, val) {
+    cm.doc.lineSep = val
+    if (!val) { return }
+    var newBreaks = [], lineNo = cm.doc.first
+    cm.doc.iter(function (line) {
+      for (var pos = 0;;) {
+        var found = line.text.indexOf(val, pos)
+        if (found == -1) { break }
+        pos = found + val.length
+        newBreaks.push(Pos(lineNo, found))
+      }
+      lineNo++
+    })
+    for (var i = newBreaks.length - 1; i >= 0; i--)
+      { replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)) }
+  })
+  option("specialChars", /[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b-\u200f\u2028\u2029\ufeff]/g, function (cm, val, old) {
+    cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g")
+    if (old != Init) { cm.refresh() }
+  })
+  option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true)
+  option("electricChars", true)
+  option("inputStyle", mobile ? "contenteditable" : "textarea", function () {
+    throw new Error("inputStyle can not (yet) be changed in a running editor") // FIXME
+  }, true)
+  option("spellcheck", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true)
+  option("rtlMoveVisually", !windows)
+  option("wholeLineUpdateBefore", true)
+
+  option("theme", "default", function (cm) {
+    themeChanged(cm)
+    guttersChanged(cm)
+  }, true)
+  option("keyMap", "default", function (cm, val, old) {
+    var next = getKeyMap(val)
+    var prev = old != Init && getKeyMap(old)
+    if (prev && prev.detach) { prev.detach(cm, next) }
+    if (next.attach) { next.attach(cm, prev || null) }
+  })
+  option("extraKeys", null)
+
+  option("lineWrapping", false, wrappingChanged, true)
+  option("gutters", [], function (cm) {
+    setGuttersForLineNumbers(cm.options)
+    guttersChanged(cm)
+  }, true)
+  option("fixedGutter", true, function (cm, val) {
+    cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0"
+    cm.refresh()
+  }, true)
+  option("coverGutterNextToScrollbar", false, function (cm) { return updateScrollbars(cm); }, true)
+  option("scrollbarStyle", "native", function (cm) {
+    initScrollbars(cm)
+    updateScrollbars(cm)
+    cm.display.scrollbars.setScrollTop(cm.doc.scrollTop)
+    cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft)
+  }, true)
+  option("lineNumbers", false, function (cm) {
+    setGuttersForLineNumbers(cm.options)
+    guttersChanged(cm)
+  }, true)
+  option("firstLineNumber", 1, guttersChanged, true)
+  option("lineNumberFormatter", function (integer) { return integer; }, guttersChanged, true)
+  option("showCursorWhenSelecting", false, updateSelection, true)
+
+  option("resetSelectionOnContextMenu", true)
+  option("lineWiseCopyCut", true)
+
+  option("readOnly", false, function (cm, val) {
+    if (val == "nocursor") {
+      onBlur(cm)
+      cm.display.input.blur()
+      cm.display.disabled = true
+    } else {
+      cm.display.disabled = false
+    }
+    cm.display.input.readOnlyChanged(val)
+  })
+  option("disableInput", false, function (cm, val) {if (!val) { cm.display.input.reset() }}, true)
+  option("dragDrop", true, dragDropChanged)
+  option("allowDropFileTypes", null)
+
+  option("cursorBlinkRate", 530)
+  option("cursorScrollMargin", 0)
+  option("cursorHeight", 1, updateSelection, true)
+  option("singleCursorHeightPerLine", true, updateSelection, true)
+  option("workTime", 100)
+  option("workDelay", 100)
+  option("flattenSpans", true, resetModeState, true)
+  option("addModeClass", false, resetModeState, true)
+  option("pollInterval", 100)
+  option("undoDepth", 200, function (cm, val) { return cm.doc.history.undoDepth = val; })
+  option("historyEventDelay", 1250)
+  option("viewportMargin", 10, function (cm) { return cm.refresh(); }, true)
+  option("maxHighlightLength", 10000, resetModeState, true)
+  option("moveInputWithCursor", true, function (cm, val) {
+    if (!val) { cm.display.input.resetPosition() }
+  })
+
+  option("tabindex", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || ""; })
+  option("autofocus", null)
+  option("direction", "ltr", function (cm, val) { return cm.doc.setDirection(val); }, true)
+}
+
+function guttersChanged(cm) {
+  updateGutters(cm)
+  regChange(cm)
+  alignHorizontally(cm)
+}
+
+function dragDropChanged(cm, value, old) {
+  var wasOn = old && old != Init
+  if (!value != !wasOn) {
+    var funcs = cm.display.dragFunctions
+    var toggle = value ? on : off
+    toggle(cm.display.scroller, "dragstart", funcs.start)
+    toggle(cm.display.scroller, "dragenter", funcs.enter)
+    toggle(cm.display.scroller, "dragover", funcs.over)
+    toggle(cm.display.scroller, "dragleave", funcs.leave)
+    toggle(cm.display.scroller, "drop", funcs.drop)
+  }
+}
+
+function wrappingChanged(cm) {
+  if (cm.options.lineWrapping) {
+    addClass(cm.display.wrapper, "CodeMirror-wrap")
+    cm.display.sizer.style.minWidth = ""
+    cm.display.sizerWidth = null
+  } else {
+    rmClass(cm.display.wrapper, "CodeMirror-wrap")
+    findMaxLine(cm)
+  }
+  estimateLineHeights(cm)
+  regChange(cm)
+  clearCaches(cm)
+  setTimeout(function () { return updateScrollbars(cm); }, 100)
+}
+
+// A CodeMirror instance represents an editor. This is the object
+// that user code is usually dealing with.
+
+function CodeMirror(place, options) {
+  var this$1 = this;
+
+  if (!(this instanceof CodeMirror)) { return new CodeMirror(place, options) }
+
+  this.options = options = options ? copyObj(options) : {}
+  // Determine effective options based on given values and defaults.
+  copyObj(defaults, options, false)
+  setGuttersForLineNumbers(options)
+
+  var doc = options.value
+  if (typeof doc == "string") { doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction) }
+  this.doc = doc
+
+  var input = new CodeMirror.inputStyles[options.inputStyle](this)
+  var display = this.display = new Display(place, doc, input)
+  display.wrapper.CodeMirror = this
+  updateGutters(this)
+  themeChanged(this)
+  if (options.lineWrapping)
+    { this.display.wrapper.className += " CodeMirror-wrap" }
+  initScrollbars(this)
+
+  this.state = {
+    keyMaps: [],  // stores maps added by addKeyMap
+    overlays: [], // highlighting overlays, as added by addOverlay
+    modeGen: 0,   // bumped when mode/overlay changes, used to invalidate highlighting info
+    overwrite: false,
+    delayingBlurEvent: false,
+    focused: false,
+    suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
+    pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in input.poll
+    selectingText: false,
+    draggingText: false,
+    highlight: new Delayed(), // stores highlight worker timeout
+    keySeq: null,  // Unfinished key sequence
+    specialChars: null
+  }
+
+  if (options.autofocus && !mobile) { display.input.focus() }
+
+  // Override magic textarea content restore that IE sometimes does
+  // on our hidden textarea on reload
+  if (ie && ie_version < 11) { setTimeout(function () { return this$1.display.input.reset(true); }, 20) }
+
+  registerEventHandlers(this)
+  ensureGlobalHandlers()
+
+  startOperation(this)
+  this.curOp.forceUpdate = true
+  attachDoc(this, doc)
+
+  if ((options.autofocus && !mobile) || this.hasFocus())
+    { setTimeout(bind(onFocus, this), 20) }
+  else
+    { onBlur(this) }
+
+  for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt))
+    { optionHandlers[opt](this$1, options[opt], Init) } }
+  maybeUpdateLineNumberWidth(this)
+  if (options.finishInit) { options.finishInit(this) }
+  for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this$1) }
+  endOperation(this)
+  // Suppress optimizelegibility in Webkit, since it breaks text
+  // measuring on line wrapping boundaries.
+  if (webkit && options.lineWrapping &&
+      getComputedStyle(display.lineDiv).textRendering == "optimizelegibility")
+    { display.lineDiv.style.textRendering = "auto" }
+}
+
+// The default configuration options.
+CodeMirror.defaults = defaults
+// Functions to run when options are changed.
+CodeMirror.optionHandlers = optionHandlers
+
+// Attach the necessary event handlers when initializing the editor
+function registerEventHandlers(cm) {
+  var d = cm.display
+  on(d.scroller, "mousedown", operation(cm, onMouseDown))
+  // Older IE's will not fire a second mousedown for a double click
+  if (ie && ie_version < 11)
+    { on(d.scroller, "dblclick", operation(cm, function (e) {
+      if (signalDOMEvent(cm, e)) { return }
+      var pos = posFromMouse(cm, e)
+      if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return }
+      e_preventDefault(e)
+      var word = cm.findWordAt(pos)
+      extendSelection(cm.doc, word.anchor, word.head)
+    })) }
+  else
+    { on(d.scroller, "dblclick", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }) }
+  // Some browsers fire contextmenu *after* opening the menu, at
+  // which point we can't mess with it anymore. Context menu is
+  // handled in onMouseDown for these browsers.
+  if (!captureRightClick) { on(d.scroller, "contextmenu", function (e) { return onContextMenu(cm, e); }) }
+
+  // Used to suppress mouse event handling when a touch happens
+  var touchFinished, prevTouch = {end: 0}
+  function finishTouch() {
+    if (d.activeTouch) {
+      touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000)
+      prevTouch = d.activeTouch
+      prevTouch.end = +new Date
+    }
+  }
+  function isMouseLikeTouchEvent(e) {
+    if (e.touches.length != 1) { return false }
+    var touch = e.touches[0]
+    return touch.radiusX <= 1 && touch.radiusY <= 1
+  }
+  function farAway(touch, other) {
+    if (other.left == null) { return true }
+    var dx = other.left - touch.left, dy = other.top - touch.top
+    return dx * dx + dy * dy > 20 * 20
+  }
+  on(d.scroller, "touchstart", function (e) {
+    if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e)) {
+      d.input.ensurePolled()
+      clearTimeout(touchFinished)
+      var now = +new Date
+      d.activeTouch = {start: now, moved: false,
+                       prev: now - prevTouch.end <= 300 ? prevTouch : null}
+      if (e.touches.length == 1) {
+        d.activeTouch.left = e.touches[0].pageX
+        d.activeTouch.top = e.touches[0].pageY
+      }
+    }
+  })
+  on(d.scroller, "touchmove", function () {
+    if (d.activeTouch) { d.activeTouch.moved = true }
+  })
+  on(d.scroller, "touchend", function (e) {
+    var touch = d.activeTouch
+    if (touch && !eventInWidget(d, e) && touch.left != null &&
+        !touch.moved && new Date - touch.start < 300) {
+      var pos = cm.coordsChar(d.activeTouch, "page"), range
+      if (!touch.prev || farAway(touch, touch.prev)) // Single tap
+        { range = new Range(pos, pos) }
+      else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap
+        { range = cm.findWordAt(pos) }
+      else // Triple tap
+        { range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) }
+      cm.setSelection(range.anchor, range.head)
+      cm.focus()
+      e_preventDefault(e)
+    }
+    finishTouch()
+  })
+  on(d.scroller, "touchcancel", finishTouch)
+
+  // Sync scrolling between fake scrollbars and real scrollable
+  // area, ensure viewport is updated when scrolling.
+  on(d.scroller, "scroll", function () {
+    if (d.scroller.clientHeight) {
+      setScrollTop(cm, d.scroller.scrollTop)
+      setScrollLeft(cm, d.scroller.scrollLeft, true)
+      signal(cm, "scroll", cm)
+    }
+  })
+
+  // Listen to wheel events in order to try and update the viewport on time.
+  on(d.scroller, "mousewheel", function (e) { return onScrollWheel(cm, e); })
+  on(d.scroller, "DOMMouseScroll", function (e) { return onScrollWheel(cm, e); })
+
+  // Prevent wrapper from ever scrolling
+  on(d.wrapper, "scroll", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; })
+
+  d.dragFunctions = {
+    enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e) }},
+    over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e) }},
+    start: function (e) { return onDragStart(cm, e); },
+    drop: operation(cm, onDrop),
+    leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm) }}
+  }
+
+  var inp = d.input.getField()
+  on(inp, "keyup", function (e) { return onKeyUp.call(cm, e); })
+  on(inp, "keydown", operation(cm, onKeyDown))
+  on(inp, "keypress", operation(cm, onKeyPress))
+  on(inp, "focus", function (e) { return onFocus(cm, e); })
+  on(inp, "blur", function (e) { return onBlur(cm, e); })
+}
+
+var initHooks = []
+CodeMirror.defineInitHook = function (f) { return initHooks.push(f); }
+
+// Indent the given line. The how parameter can be "smart",
+// "add"/null, "subtract", or "prev". When aggressive is false
+// (typically set to true for forced single-line indents), empty
+// lines are not indented, and places where the mode returns Pass
+// are left alone.
+function indentLine(cm, n, how, aggressive) {
+  var doc = cm.doc, state
+  if (how == null) { how = "add" }
+  if (how == "smart") {
+    // Fall back to "prev" when the mode doesn't have an indentation
+    // method.
+    if (!doc.mode.indent) { how = "prev" }
+    else { state = getStateBefore(cm, n) }
+  }
+
+  var tabSize = cm.options.tabSize
+  var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize)
+  if (line.stateAfter) { line.stateAfter = null }
+  var curSpaceString = line.text.match(/^\s*/)[0], indentation
+  if (!aggressive && !/\S/.test(line.text)) {
+    indentation = 0
+    how = "not"
+  } else if (how == "smart") {
+    indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text)
+    if (indentation == Pass || indentation > 150) {
+      if (!aggressive) { return }
+      how = "prev"
+    }
+  }
+  if (how == "prev") {
+    if (n > doc.first) { indentation = countColumn(getLine(doc, n-1).text, null, tabSize) }
+    else { indentation = 0 }
+  } else if (how == "add") {
+    indentation = curSpace + cm.options.indentUnit
+  } else if (how == "subtract") {
+    indentation = curSpace - cm.options.indentUnit
+  } else if (typeof how == "number") {
+    indentation = curSpace + how
+  }
+  indentation = Math.max(0, indentation)
+
+  var indentString = "", pos = 0
+  if (cm.options.indentWithTabs)
+    { for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t"} }
+  if (pos < indentation) { indentString += spaceStr(indentation - pos) }
+
+  if (indentString != curSpaceString) {
+    replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input")
+    line.stateAfter = null
+    return true
+  } else {
+    // Ensure that, if the cursor was in the whitespace at the start
+    // of the line, it is moved to the end of that space.
+    for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) {
+      var range = doc.sel.ranges[i$1]
+      if (range.head.line == n && range.head.ch < curSpaceString.length) {
+        var pos$1 = Pos(n, curSpaceString.length)
+        replaceOneSelection(doc, i$1, new Range(pos$1, pos$1))
+        break
+      }
+    }
+  }
+}
+
+// This will be set to a {lineWise: bool, text: [string]} object, so
+// that, when pasting, we know what kind of selections the copied
+// text was made out of.
+var lastCopied = null
+
+function setLastCopied(newLastCopied) {
+  lastCopied = newLastCopied
+}
+
+function applyTextInput(cm, inserted, deleted, sel, origin) {
+  var doc = cm.doc
+  cm.display.shift = false
+  if (!sel) { sel = doc.sel }
+
+  var paste = cm.state.pasteIncoming || origin == "paste"
+  var textLines = splitLinesAuto(inserted), multiPaste = null
+  // When pasing N lines into N selections, insert one line per selection
+  if (paste && sel.ranges.length > 1) {
+    if (lastCopied && lastCopied.text.join("\n") == inserted) {
+      if (sel.ranges.length % lastCopied.text.length == 0) {
+        multiPaste = []
+        for (var i = 0; i < lastCopied.text.length; i++)
+          { multiPaste.push(doc.splitLines(lastCopied.text[i])) }
+      }
+    } else if (textLines.length == sel.ranges.length) {
+      multiPaste = map(textLines, function (l) { return [l]; })
+    }
+  }
+
+  var updateInput
+  // Normal behavior is to insert the new text into every selection
+  for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) {
+    var range = sel.ranges[i$1]
+    var from = range.from(), to = range.to()
+    if (range.empty()) {
+      if (deleted && deleted > 0) // Handle deletion
+        { from = Pos(from.line, from.ch - deleted) }
+      else if (cm.state.overwrite && !paste) // Handle overwrite
+        { to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)) }
+      else if (lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == inserted)
+        { from = to = Pos(from.line, 0) }
+    }
+    updateInput = cm.curOp.updateInput
+    var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i$1 % multiPaste.length] : textLines,
+                       origin: origin || (paste ? "paste" : cm.state.cutIncoming ? "cut" : "+input")}
+    makeChange(cm.doc, changeEvent)
+    signalLater(cm, "inputRead", cm, changeEvent)
+  }
+  if (inserted && !paste)
+    { triggerElectric(cm, inserted) }
+
+  ensureCursorVisible(cm)
+  cm.curOp.updateInput = updateInput
+  cm.curOp.typing = true
+  cm.state.pasteIncoming = cm.state.cutIncoming = false
+}
+
+function handlePaste(e, cm) {
+  var pasted = e.clipboardData && e.clipboardData.getData("Text")
+  if (pasted) {
+    e.preventDefault()
+    if (!cm.isReadOnly() && !cm.options.disableInput)
+      { runInOp(cm, function () { return applyTextInput(cm, pasted, 0, null, "paste"); }) }
+    return true
+  }
+}
+
+function triggerElectric(cm, inserted) {
+  // When an 'electric' character is inserted, immediately trigger a reindent
+  if (!cm.options.electricChars || !cm.options.smartIndent) { return }
+  var sel = cm.doc.sel
+
+  for (var i = sel.ranges.length - 1; i >= 0; i--) {
+    var range = sel.ranges[i]
+    if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) { continue }
+    var mode = cm.getModeAt(range.head)
+    var indented = false
+    if (mode.electricChars) {
+      for (var j = 0; j < mode.electricChars.length; j++)
+        { if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
+          indented = indentLine(cm, range.head.line, "smart")
+          break
+        } }
+    } else if (mode.electricInput) {
+      if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))
+        { indented = indentLine(cm, range.head.line, "smart") }
+    }
+    if (indented) { signalLater(cm, "electricInput", cm, range.head.line) }
+  }
+}
+
+function copyableRanges(cm) {
+  var text = [], ranges = []
+  for (var i = 0; i < cm.doc.sel.ranges.length; i++) {
+    var line = cm.doc.sel.ranges[i].head.line
+    var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)}
+    ranges.push(lineRange)
+    text.push(cm.getRange(lineRange.anchor, lineRange.head))
+  }
+  return {text: text, ranges: ranges}
+}
+
+function disableBrowserMagic(field, spellcheck) {
+  field.setAttribute("autocorrect", "off")
+  field.setAttribute("autocapitalize", "off")
+  field.setAttribute("spellcheck", !!spellcheck)
+}
+
+function hiddenTextarea() {
+  var te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none")
+  var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;")
+  // The textarea is kept positioned near the cursor to prevent the
+  // fact that it'll be scrolled into view on input from scrolling
+  // our fake cursor out of view. On webkit, when wrap=off, paste is
+  // very slow. So make the area wide instead.
+  if (webkit) { te.style.width = "1000px" }
+  else { te.setAttribute("wrap", "off") }
+  // If border: 0; -- iOS fails to open keyboard (issue #1287)
+  if (ios) { te.style.border = "1px solid black" }
+  disableBrowserMagic(te)
+  return div
+}
+
+// The publicly visible API. Note that methodOp(f) means
+// 'wrap f in an operation, performed on its `this` parameter'.
+
+// This is not the complete set of editor methods. Most of the
+// methods defined on the Doc type are also injected into
+// CodeMirror.prototype, for backwards compatibility and
+// convenience.
+
+function addEditorMethods(CodeMirror) {
+  var optionHandlers = CodeMirror.optionHandlers
+
+  var helpers = CodeMirror.helpers = {}
+
+  CodeMirror.prototype = {
+    constructor: CodeMirror,
+    focus: function(){window.focus(); this.display.input.focus()},
+
+    setOption: function(option, value) {
+      var options = this.options, old = options[option]
+      if (options[option] == value && option != "mode") { return }
+      options[option] = value
+      if (optionHandlers.hasOwnProperty(option))
+        { operation(this, optionHandlers[option])(this, value, old) }
+      signal(this, "optionChange", this, option)
+    },
+
+    getOption: function(option) {return this.options[option]},
+    getDoc: function() {return this.doc},
+
+    addKeyMap: function(map, bottom) {
+      this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map))
+    },
+    removeKeyMap: function(map) {
+      var maps = this.state.keyMaps
+      for (var i = 0; i < maps.length; ++i)
+        { if (maps[i] == map || maps[i].name == map) {
+          maps.splice(i, 1)
+          return true
+        } }
+    },
+
+    addOverlay: methodOp(function(spec, options) {
+      var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec)
+      if (mode.startState) { throw new Error("Overlays may not be stateful.") }
+      insertSorted(this.state.overlays,
+                   {mode: mode, modeSpec: spec, opaque: options && options.opaque,
+                    priority: (options && options.priority) || 0},
+                   function (overlay) { return overlay.priority; })
+      this.state.modeGen++
+      regChange(this)
+    }),
+    removeOverlay: methodOp(function(spec) {
+      var this$1 = this;
+
+      var overlays = this.state.overlays
+      for (var i = 0; i < overlays.length; ++i) {
+        var cur = overlays[i].modeSpec
+        if (cur == spec || typeof spec == "string" && cur.name == spec) {
+          overlays.splice(i, 1)
+          this$1.state.modeGen++
+          regChange(this$1)
+          return
+        }
+      }
+    }),
+
+    indentLine: methodOp(function(n, dir, aggressive) {
+      if (typeof dir != "string" && typeof dir != "number") {
+        if (dir == null) { dir = this.options.smartIndent ? "smart" : "prev" }
+        else { dir = dir ? "add" : "subtract" }
+      }
+      if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive) }
+    }),
+    indentSelection: methodOp(function(how) {
+      var this$1 = this;
+
+      var ranges = this.doc.sel.ranges, end = -1
+      for (var i = 0; i < ranges.length; i++) {
+        var range = ranges[i]
+        if (!range.empty()) {
+          var from = range.from(), to = range.to()
+          var start = Math.max(end, from.line)
+          end = Math.min(this$1.lastLine(), to.line - (to.ch ? 0 : 1)) + 1
+          for (var j = start; j < end; ++j)
+            { indentLine(this$1, j, how) }
+          var newRanges = this$1.doc.sel.ranges
+          if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
+            { replaceOneSelection(this$1.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll) }
+        } else if (range.head.line > end) {
+          indentLine(this$1, range.head.line, how, true)
+          end = range.head.line
+          if (i == this$1.doc.sel.primIndex) { ensureCursorVisible(this$1) }
+        }
+      }
+    }),
+
+    // Fetch the parser token for a given character. Useful for hacks
+    // that want to inspect the mode state (say, for completion).
+    getTokenAt: function(pos, precise) {
+      return takeToken(this, pos, precise)
+    },
+
+    getLineTokens: function(line, precise) {
+      return takeToken(this, Pos(line), precise, true)
+    },
+
+    getTokenTypeAt: function(pos) {
+      pos = clipPos(this.doc, pos)
+      var styles = getLineStyles(this, getLine(this.doc, pos.line))
+      var before = 0, after = (styles.length - 1) / 2, ch = pos.ch
+      var type
+      if (ch == 0) { type = styles[2] }
+      else { for (;;) {
+        var mid = (before + after) >> 1
+        if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid }
+        else if (styles[mid * 2 + 1] < ch) { before = mid + 1 }
+        else { type = styles[mid * 2 + 2]; break }
+      } }
+      var cut = type ? type.indexOf("overlay ") : -1
+      return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1)
+    },
+
+    getModeAt: function(pos) {
+      var mode = this.doc.mode
+      if (!mode.innerMode) { return mode }
+      return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode
+    },
+
+    getHelper: function(pos, type) {
+      return this.getHelpers(pos, type)[0]
+    },
+
+    getHelpers: function(pos, type) {
+      var this$1 = this;
+
+      var found = []
+      if (!helpers.hasOwnProperty(type)) { return found }
+      var help = helpers[type], mode = this.getModeAt(pos)
+      if (typeof mode[type] == "string") {
+        if (help[mode[type]]) { found.push(help[mode[type]]) }
+      } else if (mode[type]) {
+        for (var i = 0; i < mode[type].length; i++) {
+          var val = help[mode[type][i]]
+          if (val) { found.push(val) }
+        }
+      } else if (mode.helperType && help[mode.helperType]) {
+        found.push(help[mode.helperType])
+      } else if (help[mode.name]) {
+        found.push(help[mode.name])
+      }
+      for (var i$1 = 0; i$1 < help._global.length; i$1++) {
+        var cur = help._global[i$1]
+        if (cur.pred(mode, this$1) && indexOf(found, cur.val) == -1)
+          { found.push(cur.val) }
+      }
+      return found
+    },
+
+    getStateAfter: function(line, precise) {
+      var doc = this.doc
+      line = clipLine(doc, line == null ? doc.first + doc.size - 1: line)
+      return getStateBefore(this, line + 1, precise)
+    },
+
+    cursorCoords: function(start, mode) {
+      var pos, range = this.doc.sel.primary()
+      if (start == null) { pos = range.head }
+      else if (typeof start == "object") { pos = clipPos(this.doc, start) }
+      else { pos = start ? range.from() : range.to() }
+      return cursorCoords(this, pos, mode || "page")
+    },
+
+    charCoords: function(pos, mode) {
+      return charCoords(this, clipPos(this.doc, pos), mode || "page")
+    },
+
+    coordsChar: function(coords, mode) {
+      coords = fromCoordSystem(this, coords, mode || "page")
+      return coordsChar(this, coords.left, coords.top)
+    },
+
+    lineAtHeight: function(height, mode) {
+      height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top
+      return lineAtHeight(this.doc, height + this.display.viewOffset)
+    },
+    heightAtLine: function(line, mode, includeWidgets) {
+      var end = false, lineObj
+      if (typeof line == "number") {
+        var last = this.doc.first + this.doc.size - 1
+        if (line < this.doc.first) { line = this.doc.first }
+        else if (line > last) { line = last; end = true }
+        lineObj = getLine(this.doc, line)
+      } else {
+        lineObj = line
+      }
+      return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page", includeWidgets || end).top +
+        (end ? this.doc.height - heightAtLine(lineObj) : 0)
+    },
+
+    defaultTextHeight: function() { return textHeight(this.display) },
+    defaultCharWidth: function() { return charWidth(this.display) },
+
+    getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}},
+
+    addWidget: function(pos, node, scroll, vert, horiz) {
+      var display = this.display
+      pos = cursorCoords(this, clipPos(this.doc, pos))
+      var top = pos.bottom, left = pos.left
+      node.style.position = "absolute"
+      node.setAttribute("cm-ignore-events", "true")
+      this.display.input.setUneditable(node)
+      display.sizer.appendChild(node)
+      if (vert == "over") {
+        top = pos.top
+      } else if (vert == "above" || vert == "near") {
+        var vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
+        hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth)
+        // Default to positioning above (if specified and possible); otherwise default to positioning below
+        if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
+          { top = pos.top - node.offsetHeight }
+        else if (pos.bottom + node.offsetHeight <= vspace)
+          { top = pos.bottom }
+        if (left + node.offsetWidth > hspace)
+          { left = hspace - node.offsetWidth }
+      }
+      node.style.top = top + "px"
+      node.style.left = node.style.right = ""
+      if (horiz == "right") {
+        left = display.sizer.clientWidth - node.offsetWidth
+        node.style.right = "0px"
+      } else {
+        if (horiz == "left") { left = 0 }
+        else if (horiz == "middle") { left = (display.sizer.clientWidth - node.offsetWidth) / 2 }
+        node.style.left = left + "px"
+      }
+      if (scroll)
+        { scrollIntoView(this, {left: left, top: top, right: left + node.offsetWidth, bottom: top + node.offsetHeight}) }
+    },
+
+    triggerOnKeyDown: methodOp(onKeyDown),
+    triggerOnKeyPress: methodOp(onKeyPress),
+    triggerOnKeyUp: onKeyUp,
+
+    execCommand: function(cmd) {
+      if (commands.hasOwnProperty(cmd))
+        { return commands[cmd].call(null, this) }
+    },
+
+    triggerElectric: methodOp(function(text) { triggerElectric(this, text) }),
+
+    findPosH: function(from, amount, unit, visually) {
+      var this$1 = this;
+
+      var dir = 1
+      if (amount < 0) { dir = -1; amount = -amount }
+      var cur = clipPos(this.doc, from)
+      for (var i = 0; i < amount; ++i) {
+        cur = findPosH(this$1.doc, cur, dir, unit, visually)
+        if (cur.hitSide) { break }
+      }
+      return cur
+    },
+
+    moveH: methodOp(function(dir, unit) {
+      var this$1 = this;
+
+      this.extendSelectionsBy(function (range) {
+        if (this$1.display.shift || this$1.doc.extend || range.empty())
+          { return findPosH(this$1.doc, range.head, dir, unit, this$1.options.rtlMoveVisually) }
+        else
+          { return dir < 0 ? range.from() : range.to() }
+      }, sel_move)
+    }),
+
+    deleteH: methodOp(function(dir, unit) {
+      var sel = this.doc.sel, doc = this.doc
+      if (sel.somethingSelected())
+        { doc.replaceSelection("", null, "+delete") }
+      else
+        { deleteNearSelection(this, function (range) {
+          var other = findPosH(doc, range.head, dir, unit, false)
+          return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other}
+        }) }
+    }),
+
+    findPosV: function(from, amount, unit, goalColumn) {
+      var this$1 = this;
+
+      var dir = 1, x = goalColumn
+      if (amount < 0) { dir = -1; amount = -amount }
+      var cur = clipPos(this.doc, from)
+      for (var i = 0; i < amount; ++i) {
+        var coords = cursorCoords(this$1, cur, "div")
+        if (x == null) { x = coords.left }
+        else { coords.left = x }
+        cur = findPosV(this$1, coords, dir, unit)
+        if (cur.hitSide) { break }
+      }
+      return cur
+    },
+
+    moveV: methodOp(function(dir, unit) {
+      var this$1 = this;
+
+      var doc = this.doc, goals = []
+      var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected()
+      doc.extendSelectionsBy(function (range) {
+        if (collapse)
+          { return dir < 0 ? range.from() : range.to() }
+        var headPos = cursorCoords(this$1, range.head, "div")
+        if (range.goalColumn != null) { headPos.left = range.goalColumn }
+        goals.push(headPos.left)
+        var pos = findPosV(this$1, headPos, dir, unit)
+        if (unit == "page" && range == doc.sel.primary())
+          { addToScrollPos(this$1, null, charCoords(this$1, pos, "div").top - headPos.top) }
+        return pos
+      }, sel_move)
+      if (goals.length) { for (var i = 0; i < doc.sel.ranges.length; i++)
+        { doc.sel.ranges[i].goalColumn = goals[i] } }
+    }),
+
+    // Find the word at the given position (as returned by coordsChar).
+    findWordAt: function(pos) {
+      var doc = this.doc, line = getLine(doc, pos.line).text
+      var start = pos.ch, end = pos.ch
+      if (line) {
+        var helper = this.getHelper(pos, "wordChars")
+        if ((pos.sticky == "before" || end == line.length) && start) { --start; } else { ++end }
+        var startChar = line.charAt(start)
+        var check = isWordChar(startChar, helper)
+          ? function (ch) { return isWordChar(ch, helper); }
+          : /\s/.test(startChar) ? function (ch) { return /\s/.test(ch); }
+          : function (ch) { return (!/\s/.test(ch) && !isWordChar(ch)); }
+        while (start > 0 && check(line.charAt(start - 1))) { --start }
+        while (end < line.length && check(line.charAt(end))) { ++end }
+      }
+      return new Range(Pos(pos.line, start), Pos(pos.line, end))
+    },
+
+    toggleOverwrite: function(value) {
+      if (value != null && value == this.state.overwrite) { return }
+      if (this.state.overwrite = !this.state.overwrite)
+        { addClass(this.display.cursorDiv, "CodeMirror-overwrite") }
+      else
+        { rmClass(this.display.cursorDiv, "CodeMirror-overwrite") }
+
+      signal(this, "overwriteToggle", this, this.state.overwrite)
+    },
+    hasFocus: function() { return this.display.input.getField() == activeElt() },
+    isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) },
+
+    scrollTo: methodOp(function(x, y) {
+      if (x != null || y != null) { resolveScrollToPos(this) }
+      if (x != null) { this.curOp.scrollLeft = x }
+      if (y != null) { this.curOp.scrollTop = y }
+    }),
+    getScrollInfo: function() {
+      var scroller = this.display.scroller
+      return {left: scroller.scrollLeft, top: scroller.scrollTop,
+              height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,
+              width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,
+              clientHeight: displayHeight(this), clientWidth: displayWidth(this)}
+    },
+
+    scrollIntoView: methodOp(function(range, margin) {
+      if (range == null) {
+        range = {from: this.doc.sel.primary().head, to: null}
+        if (margin == null) { margin = this.options.cursorScrollMargin }
+      } else if (typeof range == "number") {
+        range = {from: Pos(range, 0), to: null}
+      } else if (range.from == null) {
+        range = {from: range, to: null}
+      }
+      if (!range.to) { range.to = range.from }
+      range.margin = margin || 0
+
+      if (range.from.line != null) {
+        resolveScrollToPos(this)
+        this.curOp.scrollToPos = range
+      } else {
+        var sPos = calculateScrollPos(this, {
+          left: Math.min(range.from.left, range.to.left),
+          top: Math.min(range.from.top, range.to.top) - range.margin,
+          right: Math.max(range.from.right, range.to.right),
+          bottom: Math.max(range.from.bottom, range.to.bottom) + range.margin
+        })
+        this.scrollTo(sPos.scrollLeft, sPos.scrollTop)
+      }
+    }),
+
+    setSize: methodOp(function(width, height) {
+      var this$1 = this;
+
+      var interpret = function (val) { return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; }
+      if (width != null) { this.display.wrapper.style.width = interpret(width) }
+      if (height != null) { this.display.wrapper.style.height = interpret(height) }
+      if (this.options.lineWrapping) { clearLineMeasurementCache(this) }
+      var lineNo = this.display.viewFrom
+      this.doc.iter(lineNo, this.display.viewTo, function (line) {
+        if (line.widgets) { for (var i = 0; i < line.widgets.length; i++)
+          { if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo, "widget"); break } } }
+        ++lineNo
+      })
+      this.curOp.forceUpdate = true
+      signal(this, "refresh", this)
+    }),
+
+    operation: function(f){return runInOp(this, f)},
+
+    refresh: methodOp(function() {
+      var oldHeight = this.display.cachedTextHeight
+      regChange(this)
+      this.curOp.forceUpdate = true
+      clearCaches(this)
+      this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop)
+      updateGutterSpace(this)
+      if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5)
+        { estimateLineHeights(this) }
+      signal(this, "refresh", this)
+    }),
+
+    swapDoc: methodOp(function(doc) {
+      var old = this.doc
+      old.cm = null
+      attachDoc(this, doc)
+      clearCaches(this)
+      this.display.input.reset()
+      this.scrollTo(doc.scrollLeft, doc.scrollTop)
+      this.curOp.forceScroll = true
+      signalLater(this, "swapDoc", this, old)
+      return old
+    }),
+
+    getInputField: function(){return this.display.input.getField()},
+    getWrapperElement: function(){return this.display.wrapper},
+    getScrollerElement: function(){return this.display.scroller},
+    getGutterElement: function(){return this.display.gutters}
+  }
+  eventMixin(CodeMirror)
+
+  CodeMirror.registerHelper = function(type, name, value) {
+    if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []} }
+    helpers[type][name] = value
+  }
+  CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {
+    CodeMirror.registerHelper(type, name, value)
+    helpers[type]._global.push({pred: predicate, val: value})
+  }
+}
+
+// Used for horizontal relative motion. Dir is -1 or 1 (left or
+// right), unit can be "char", "column" (like char, but doesn't
+// cross line boundaries), "word" (across next word), or "group" (to
+// the start of next group of word or non-word-non-whitespace
+// chars). The visually param controls whether, in right-to-left
+// text, direction 1 means to move towards the next index in the
+// string, or towards the character to the right of the current
+// position. The resulting position will have a hitSide=true
+// property if it reached the end of the document.
+function findPosH(doc, pos, dir, unit, visually) {
+  var oldPos = pos
+  var origDir = dir
+  var lineObj = getLine(doc, pos.line)
+  function findNextLine() {
+    var l = pos.line + dir
+    if (l < doc.first || l >= doc.first + doc.size) { return false }
+    pos = new Pos(l, pos.ch, pos.sticky)
+    return lineObj = getLine(doc, l)
+  }
+  function moveOnce(boundToLine) {
+    var next
+    if (visually) {
+      next = moveVisually(doc.cm, lineObj, pos, dir)
+    } else {
+      next = moveLogically(lineObj, pos, dir)
+    }
+    if (next == null) {
+      if (!boundToLine && findNextLine())
+        { pos = endOfLine(visually, doc.cm, lineObj, pos.line, dir) }
+      else
+        { return false }
+    } else {
+      pos = next
+    }
+    return true
+  }
+
+  if (unit == "char") {
+    moveOnce()
+  } else if (unit == "column") {
+    moveOnce(true)
+  } else if (unit == "word" || unit == "group") {
+    var sawType = null, group = unit == "group"
+    var helper = doc.cm && doc.cm.getHelper(pos, "wordChars")
+    for (var first = true;; first = false) {
+      if (dir < 0 && !moveOnce(!first)) { break }
+      var cur = lineObj.text.charAt(pos.ch) || "\n"
+      var type = isWordChar(cur, helper) ? "w"
+        : group && cur == "\n" ? "n"
+        : !group || /\s/.test(cur) ? null
+        : "p"
+      if (group && !first && !type) { type = "s" }
+      if (sawType && sawType != type) {
+        if (dir < 0) {dir = 1; moveOnce(); pos.sticky = "after"}
+        break
+      }
+
+      if (type) { sawType = type }
+      if (dir > 0 && !moveOnce(!first)) { break }
+    }
+  }
+  var result = skipAtomic(doc, pos, oldPos, origDir, true)
+  if (equalCursorPos(oldPos, result)) { result.hitSide = true }
+  return result
+}
+
+// For relative vertical movement. Dir may be -1 or 1. Unit can be
+// "page" or "line". The resulting position will have a hitSide=true
+// property if it reached the end of the document.
+function findPosV(cm, pos, dir, unit) {
+  var doc = cm.doc, x = pos.left, y
+  if (unit == "page") {
+    var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight)
+    var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3)
+    y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount
+
+  } else if (unit == "line") {
+    y = dir > 0 ? pos.bottom + 3 : pos.top - 3
+  }
+  var target
+  for (;;) {
+    target = coordsChar(cm, x, y)
+    if (!target.outside) { break }
+    if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break }
+    y += dir * 5
+  }
+  return target
+}
+
+// CONTENTEDITABLE INPUT STYLE
+
+var ContentEditableInput = function(cm) {
+  this.cm = cm
+  this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null
+  this.polling = new Delayed()
+  this.composing = null
+  this.gracePeriod = false
+  this.readDOMTimeout = null
+};
+
+ContentEditableInput.prototype.init = function (display) {
+    var this$1 = this;
+
+  var input = this, cm = input.cm
+  var div = input.div = display.lineDiv
+  disableBrowserMagic(div, cm.options.spellcheck)
+
+  on(div, "paste", function (e) {
+    if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }
+    // IE doesn't fire input events, so we schedule a read for the pasted content in this way
+    if (ie_version <= 11) { setTimeout(operation(cm, function () { return this$1.updateFromDOM(); }), 20) }
+  })
+
+  on(div, "compositionstart", function (e) {
+    this$1.composing = {data: e.data, done: false}
+  })
+  on(div, "compositionupdate", function (e) {
+    if (!this$1.composing) { this$1.composing = {data: e.data, done: false} }
+  })
+  on(div, "compositionend", function (e) {
+    if (this$1.composing) {
+      if (e.data != this$1.composing.data) { this$1.readFromDOMSoon() }
+      this$1.composing.done = true
+    }
+  })
+
+  on(div, "touchstart", function () { return input.forceCompositionEnd(); })
+
+  on(div, "input", function () {
+    if (!this$1.composing) { this$1.readFromDOMSoon() }
+  })
+
+  function onCopyCut(e) {
+    if (signalDOMEvent(cm, e)) { return }
+    if (cm.somethingSelected()) {
+      setLastCopied({lineWise: false, text: cm.getSelections()})
+      if (e.type == "cut") { cm.replaceSelection("", null, "cut") }
+    } else if (!cm.options.lineWiseCopyCut) {
+      return
+    } else {
+      var ranges = copyableRanges(cm)
+      setLastCopied({lineWise: true, text: ranges.text})
+      if (e.type == "cut") {
+        cm.operation(function () {
+          cm.setSelections(ranges.ranges, 0, sel_dontScroll)
+          cm.replaceSelection("", null, "cut")
+        })
+      }
+    }
+    if (e.clipboardData) {
+      e.clipboardData.clearData()
+      var content = lastCopied.text.join("\n")
+      // iOS exposes the clipboard API, but seems to discard content inserted into it
+      e.clipboardData.setData("Text", content)
+      if (e.clipboardData.getData("Text") == content) {
+        e.preventDefault()
+        return
+      }
+    }
+    // Old-fashioned briefly-focus-a-textarea hack
+    var kludge = hiddenTextarea(), te = kludge.firstChild
+    cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild)
+    te.value = lastCopied.text.join("\n")
+    var hadFocus = document.activeElement
+    selectInput(te)
+    setTimeout(function () {
+      cm.display.lineSpace.removeChild(kludge)
+      hadFocus.focus()
+      if (hadFocus == div) { input.showPrimarySelection() }
+    }, 50)
+  }
+  on(div, "copy", onCopyCut)
+  on(div, "cut", onCopyCut)
+};
+
+ContentEditableInput.prototype.prepareSelection = function () {
+  var result = prepareSelection(this.cm, false)
+  result.focus = this.cm.state.focused
+  return result
+};
+
+ContentEditableInput.prototype.showSelection = function (info, takeFocus) {
+  if (!info || !this.cm.display.view.length) { return }
+  if (info.focus || takeFocus) { this.showPrimarySelection() }
+  this.showMultipleSelections(info)
+};
+
+ContentEditableInput.prototype.showPrimarySelection = function () {
+  var sel = window.getSelection(), prim = this.cm.doc.sel.primary()
+  var curAnchor = domToPos(this.cm, sel.anchorNode, sel.anchorOffset)
+  var curFocus = domToPos(this.cm, sel.focusNode, sel.focusOffset)
+  if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&
+      cmp(minPos(curAnchor, curFocus), prim.from()) == 0 &&
+      cmp(maxPos(curAnchor, curFocus), prim.to()) == 0)
+    { return }
+
+  var start = posToDOM(this.cm, prim.from())
+  var end = posToDOM(this.cm, prim.to())
+  if (!start && !end) {
+    sel.removeAllRanges()
+    return
+  }
+
+  var view = this.cm.display.view
+  var old = sel.rangeCount && sel.getRangeAt(0)
+  if (!start) {
+    start = {node: view[0].measure.map[2], offset: 0}
+  } else if (!end) { // FIXME dangerously hacky
+    var measure = view[view.length - 1].measure
+    var map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map
+    end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]}
+  }
+
+  var rng
+  try { rng = range(start.node, start.offset, end.offset, end.node) }
+  catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible
+  if (rng) {
+    if (!gecko && this.cm.state.focused) {
+      sel.collapse(start.node, start.offset)
+      if (!rng.collapsed) {
+        sel.removeAllRanges()
+        sel.addRange(rng)
+      }
+    } else {
+      sel.removeAllRanges()
+      sel.addRange(rng)
+    }
+    if (old && sel.anchorNode == null) { sel.addRange(old) }
+    else if (gecko) { this.startGracePeriod() }
+  }
+  this.rememberSelection()
+};
+
+ContentEditableInput.prototype.startGracePeriod = function () {
+    var this$1 = this;
+
+  clearTimeout(this.gracePeriod)
+  this.gracePeriod = setTimeout(function () {
+    this$1.gracePeriod = false
+    if (this$1.selectionChanged())
+      { this$1.cm.operation(function () { return this$1.cm.curOp.selectionChanged = true; }) }
+  }, 20)
+};
+
+ContentEditableInput.prototype.showMultipleSelections = function (info) {
+  removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors)
+  removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection)
+};
+
+ContentEditableInput.prototype.rememberSelection = function () {
+  var sel = window.getSelection()
+  this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset
+  this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset
+};
+
+ContentEditableInput.prototype.selectionInEditor = function () {
+  var sel = window.getSelection()
+  if (!sel.rangeCount) { return false }
+  var node = sel.getRangeAt(0).commonAncestorContainer
+  return contains(this.div, node)
+};
+
+ContentEditableInput.prototype.focus = function () {
+  if (this.cm.options.readOnly != "nocursor") {
+    if (!this.selectionInEditor())
+      { this.showSelection(this.prepareSelection(), true) }
+    this.div.focus()
+  }
+};
+ContentEditableInput.prototype.blur = function () { this.div.blur() };
+ContentEditableInput.prototype.getField = function () { return this.div };
+
+ContentEditableInput.prototype.supportsTouch = function () { return true };
+
+ContentEditableInput.prototype.receivedFocus = function () {
+  var input = this
+  if (this.selectionInEditor())
+    { this.pollSelection() }
+  else
+    { runInOp(this.cm, function () { return input.cm.curOp.selectionChanged = true; }) }
+
+  function poll() {
+    if (input.cm.state.focused) {
+      input.pollSelection()
+      input.polling.set(input.cm.options.pollInterval, poll)
+    }
+  }
+  this.polling.set(this.cm.options.pollInterval, poll)
+};
+
+ContentEditableInput.prototype.selectionChanged = function () {
+  var sel = window.getSelection()
+  return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||
+    sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset
+};
+
+ContentEditableInput.prototype.pollSelection = function () {
+  if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) { return }
+  var sel = window.getSelection(), cm = this.cm
+  // On Android Chrome (version 56, at least), backspacing into an
+  // uneditable block element will put the cursor in that element,
+  // and then, because it's not editable, hide the virtual keyboard.
+  // Because Android doesn't allow us to actually detect backspace
+  // presses in a sane way, this code checks for when that happens
+  // and simulates a backspace press in this case.
+  if (android && chrome && this.cm.options.gutters.length && isInGutter(sel.anchorNode)) {
+    this.cm.triggerOnKeyDown({type: "keydown", keyCode: 8, preventDefault: Math.abs})
+    this.blur()
+    this.focus()
+    return
+  }
+  if (this.composing) { return }
+  this.rememberSelection()
+  var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset)
+  var head = domToPos(cm, sel.focusNode, sel.focusOffset)
+  if (anchor && head) { runInOp(cm, function () {
+    setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll)
+    if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true }
+  }) }
+};
+
+ContentEditableInput.prototype.pollContent = function () {
+  if (this.readDOMTimeout != null) {
+    clearTimeout(this.readDOMTimeout)
+    this.readDOMTimeout = null
+  }
+
+  var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary()
+  var from = sel.from(), to = sel.to()
+  if (from.ch == 0 && from.line > cm.firstLine())
+    { from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length) }
+  if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine())
+    { to = Pos(to.line + 1, 0) }
+  if (from.line < display.viewFrom || to.line > display.viewTo - 1) { return false }
+
+  var fromIndex, fromLine, fromNode
+  if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {
+    fromLine = lineNo(display.view[0].line)
+    fromNode = display.view[0].node
+  } else {
+    fromLine = lineNo(display.view[fromIndex].line)
+    fromNode = display.view[fromIndex - 1].node.nextSibling
+  }
+  var toIndex = findViewIndex(cm, to.line)
+  var toLine, toNode
+  if (toIndex == display.view.length - 1) {
+    toLine = display.viewTo - 1
+    toNode = display.lineDiv.lastChild
+  } else {
+    toLine = lineNo(display.view[toIndex + 1].line) - 1
+    toNode = display.view[toIndex + 1].node.previousSibling
+  }
+
+  if (!fromNode) { return false }
+  var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine))
+  var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length))
+  while (newText.length > 1 && oldText.length > 1) {
+    if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine-- }
+    else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++ }
+    else { break }
+  }
+
+  var cutFront = 0, cutEnd = 0
+  var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length)
+  while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))
+    { ++cutFront }
+  var newBot = lst(newText), oldBot = lst(oldText)
+  var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),
+                           oldBot.length - (oldText.length == 1 ? cutFront : 0))
+  while (cutEnd < maxCutEnd &&
+         newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))
+    { ++cutEnd }
+  // Try to move start of change to start of selection if ambiguous
+  if (newText.length == 1 && oldText.length == 1 && fromLine == from.line) {
+    while (cutFront && cutFront > from.ch &&
+           newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) {
+      cutFront--
+      cutEnd++
+    }
+  }
+
+  newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\u200b+/, "")
+  newText[0] = newText[0].slice(cutFront).replace(/\u200b+$/, "")
+
+  var chFrom = Pos(fromLine, cutFront)
+  var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0)
+  if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {
+    replaceRange(cm.doc, newText, chFrom, chTo, "+input")
+    return true
+  }
+};
+
+ContentEditableInput.prototype.ensurePolled = function () {
+  this.forceCompositionEnd()
+};
+ContentEditableInput.prototype.reset = function () {
+  this.forceCompositionEnd()
+};
+ContentEditableInput.prototype.forceCompositionEnd = function () {
+  if (!this.composing) { return }
+  clearTimeout(this.readDOMTimeout)
+  this.composing = null
+  this.updateFromDOM()
+  this.div.blur()
+  this.div.focus()
+};
+ContentEditableInput.prototype.readFromDOMSoon = function () {
+    var this$1 = this;
+
+  if (this.readDOMTimeout != null) { return }
+  this.readDOMTimeout = setTimeout(function () {
+    this$1.readDOMTimeout = null
+    if (this$1.composing) {
+      if (this$1.composing.done) { this$1.composing = null }
+      else { return }
+    }
+    this$1.updateFromDOM()
+  }, 80)
+};
+
+ContentEditableInput.prototype.updateFromDOM = function () {
+    var this$1 = this;
+
+  if (this.cm.isReadOnly() || !this.pollContent())
+    { runInOp(this.cm, function () { return regChange(this$1.cm); }) }
+};
+
+ContentEditableInput.prototype.setUneditable = function (node) {
+  node.contentEditable = "false"
+};
+
+ContentEditableInput.prototype.onKeyPress = function (e) {
+  if (e.charCode == 0) { return }
+  e.preventDefault()
+  if (!this.cm.isReadOnly())
+    { operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0) }
+};
+
+ContentEditableInput.prototype.readOnlyChanged = function (val) {
+  this.div.contentEditable = String(val != "nocursor")
+};
+
+ContentEditableInput.prototype.onContextMenu = function () {};
+ContentEditableInput.prototype.resetPosition = function () {};
+
+ContentEditableInput.prototype.needsContentAttribute = true
+
+function posToDOM(cm, pos) {
+  var view = findViewForLine(cm, pos.line)
+  if (!view || view.hidden) { return null }
+  var line = getLine(cm.doc, pos.line)
+  var info = mapFromLineView(view, line, pos.line)
+
+  var order = getOrder(line, cm.doc.direction), side = "left"
+  if (order) {
+    var partPos = getBidiPartAt(order, pos.ch)
+    side = partPos % 2 ? "right" : "left"
+  }
+  var result = nodeAndOffsetInLineMap(info.map, pos.ch, side)
+  result.offset = result.collapse == "right" ? result.end : result.start
+  return result
+}
+
+function isInGutter(node) {
+  for (var scan = node; scan; scan = scan.parentNode)
+    { if (/CodeMirror-gutter-wrapper/.test(scan.className)) { return true } }
+  return false
+}
+
+function badPos(pos, bad) { if (bad) { pos.bad = true; } return pos }
+
+function domTextBetween(cm, from, to, fromLine, toLine) {
+  var text = "", closing = false, lineSep = cm.doc.lineSeparator()
+  function recognizeMarker(id) { return function (marker) { return marker.id == id; } }
+  function close() {
+    if (closing) {
+      text += lineSep
+      closing = false
+    }
+  }
+  function addText(str) {
+    if (str) {
+      close()
+      text += str
+    }
+  }
+  function walk(node) {
+    if (node.nodeType == 1) {
+      var cmText = node.getAttribute("cm-text")
+      if (cmText != null) {
+        addText(cmText || node.textContent.replace(/\u200b/g, ""))
+        return
+      }
+      var markerID = node.getAttribute("cm-marker"), range
+      if (markerID) {
+        var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID))
+        if (found.length && (range = found[0].find()))
+          { addText(getBetween(cm.doc, range.from, range.to).join(lineSep)) }
+        return
+      }
+      if (node.getAttribute("contenteditable") == "false") { return }
+      var isBlock = /^(pre|div|p)$/i.test(node.nodeName)
+      if (isBlock) { close() }
+      for (var i = 0; i < node.childNodes.length; i++)
+        { walk(node.childNodes[i]) }
+      if (isBlock) { closing = true }
+    } else if (node.nodeType == 3) {
+      addText(node.nodeValue)
+    }
+  }
+  for (;;) {
+    walk(from)
+    if (from == to) { break }
+    from = from.nextSibling
+  }
+  return text
+}
+
+function domToPos(cm, node, offset) {
+  var lineNode
+  if (node == cm.display.lineDiv) {
+    lineNode = cm.display.lineDiv.childNodes[offset]
+    if (!lineNode) { return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true) }
+    node = null; offset = 0
+  } else {
+    for (lineNode = node;; lineNode = lineNode.parentNode) {
+      if (!lineNode || lineNode == cm.display.lineDiv) { return null }
+      if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) { break }
+    }
+  }
+  for (var i = 0; i < cm.display.view.length; i++) {
+    var lineView = cm.display.view[i]
+    if (lineView.node == lineNode)
+      { return locateNodeInLineView(lineView, node, offset) }
+  }
+}
+
+function locateNodeInLineView(lineView, node, offset) {
+  var wrapper = lineView.text.firstChild, bad = false
+  if (!node || !contains(wrapper, node)) { return badPos(Pos(lineNo(lineView.line), 0), true) }
+  if (node == wrapper) {
+    bad = true
+    node = wrapper.childNodes[offset]
+    offset = 0
+    if (!node) {
+      var line = lineView.rest ? lst(lineView.rest) : lineView.line
+      return badPos(Pos(lineNo(line), line.text.length), bad)
+    }
+  }
+
+  var textNode = node.nodeType == 3 ? node : null, topNode = node
+  if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {
+    textNode = node.firstChild
+    if (offset) { offset = textNode.nodeValue.length }
+  }
+  while (topNode.parentNode != wrapper) { topNode = topNode.parentNode }
+  var measure = lineView.measure, maps = measure.maps
+
+  function find(textNode, topNode, offset) {
+    for (var i = -1; i < (maps ? maps.length : 0); i++) {
+      var map = i < 0 ? measure.map : maps[i]
+      for (var j = 0; j < map.length; j += 3) {
+        var curNode = map[j + 2]
+        if (curNode == textNode || curNode == topNode) {
+          var line = lineNo(i < 0 ? lineView.line : lineView.rest[i])
+          var ch = map[j] + offset
+          if (offset < 0 || curNode != textNode) { ch = map[j + (offset ? 1 : 0)] }
+          return Pos(line, ch)
+        }
+      }
+    }
+  }
+  var found = find(textNode, topNode, offset)
+  if (found) { return badPos(found, bad) }
+
+  // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems
+  for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {
+    found = find(after, after.firstChild, 0)
+    if (found)
+      { return badPos(Pos(found.line, found.ch - dist), bad) }
+    else
+      { dist += after.textContent.length }
+  }
+  for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) {
+    found = find(before, before.firstChild, -1)
+    if (found)
+      { return badPos(Pos(found.line, found.ch + dist$1), bad) }
+    else
+      { dist$1 += before.textContent.length }
+  }
+}
+
+// TEXTAREA INPUT STYLE
+
+var TextareaInput = function(cm) {
+  this.cm = cm
+  // See input.poll and input.reset
+  this.prevInput = ""
+
+  // Flag that indicates whether we expect input to appear real soon
+  // now (after some event like 'keypress' or 'input') and are
+  // polling intensively.
+  this.pollingFast = false
+  // Self-resetting timeout for the poller
+  this.polling = new Delayed()
+  // Tracks when input.reset has punted to just putting a short
+  // string into the textarea instead of the full selection.
+  this.inaccurateSelection = false
+  // Used to work around IE issue with selection being forgotten when focus moves away from textarea
+  this.hasSelection = false
+  this.composing = null
+};
+
+TextareaInput.prototype.init = function (display) {
+    var this$1 = this;
+
+  var input = this, cm = this.cm
+
+  // Wraps and hides input textarea
+  var div = this.wrapper = hiddenTextarea()
+  // The semihidden textarea that is focused when the editor is
+  // focused, and receives input.
+  var te = this.textarea = div.firstChild
+  display.wrapper.insertBefore(div, display.wrapper.firstChild)
+
+  // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)
+  if (ios) { te.style.width = "0px" }
+
+  on(te, "input", function () {
+    if (ie && ie_version >= 9 && this$1.hasSelection) { this$1.hasSelection = null }
+    input.poll()
+  })
+
+  on(te, "paste", function (e) {
+    if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return }
+
+    cm.state.pasteIncoming = true
+    input.fastPoll()
+  })
+
+  function prepareCopyCut(e) {
+    if (signalDOMEvent(cm, e)) { return }
+    if (cm.somethingSelected()) {
+      setLastCopied({lineWise: false, text: cm.getSelections()})
+      if (input.inaccurateSelection) {
+        input.prevInput = ""
+        input.inaccurateSelection = false
+        te.value = lastCopied.text.join("\n")
+        selectInput(te)
+      }
+    } else if (!cm.options.lineWiseCopyCut) {
+      return
+    } else {
+      var ranges = copyableRanges(cm)
+      setLastCopied({lineWise: true, text: ranges.text})
+      if (e.type == "cut") {
+        cm.setSelections(ranges.ranges, null, sel_dontScroll)
+      } else {
+        input.prevInput = ""
+        te.value = ranges.text.join("\n")
+        selectInput(te)
+      }
+    }
+    if (e.type == "cut") { cm.state.cutIncoming = true }
+  }
+  on(te, "cut", prepareCopyCut)
+  on(te, "copy", prepareCopyCut)
+
+  on(display.scroller, "paste", function (e) {
+    if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return }
+    cm.state.pasteIncoming = true
+    input.focus()
+  })
+
+  // Prevent normal selection in the editor (we handle our own)
+  on(display.lineSpace, "selectstart", function (e) {
+    if (!eventInWidget(display, e)) { e_preventDefault(e) }
+  })
+
+  on(te, "compositionstart", function () {
+    var start = cm.getCursor("from")
+    if (input.composing) { input.composing.range.clear() }
+    input.composing = {
+      start: start,
+      range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"})
+    }
+  })
+  on(te, "compositionend", function () {
+    if (input.composing) {
+      input.poll()
+      input.composing.range.clear()
+      input.composing = null
+    }
+  })
+};
+
+TextareaInput.prototype.prepareSelection = function () {
+  // Redraw the selection and/or cursor
+  var cm = this.cm, display = cm.display, doc = cm.doc
+  var result = prepareSelection(cm)
+
+  // Move the hidden textarea near the cursor to prevent scrolling artifacts
+  if (cm.options.moveInputWithCursor) {
+    var headPos = cursorCoords(cm, doc.sel.primary().head, "div")
+    var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect()
+    result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
+                                        headPos.top + lineOff.top - wrapOff.top))
+    result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
+                                         headPos.left + lineOff.left - wrapOff.left))
+  }
+
+  return result
+};
+
+TextareaInput.prototype.showSelection = function (drawn) {
+  var cm = this.cm, display = cm.display
+  removeChildrenAndAdd(display.cursorDiv, drawn.cursors)
+  removeChildrenAndAdd(display.selectionDiv, drawn.selection)
+  if (drawn.teTop != null) {
+    this.wrapper.style.top = drawn.teTop + "px"
+    this.wrapper.style.left = drawn.teLeft + "px"
+  }
+};
+
+// Reset the input to correspond to the selection (or to be empty,
+// when not typing and nothing is selected)
+TextareaInput.prototype.reset = function (typing) {
+  if (this.contextMenuPending) { return }
+  var minimal, selected, cm = this.cm, doc = cm.doc
+  if (cm.somethingSelected()) {
+    this.prevInput = ""
+    var range = doc.sel.primary()
+    minimal = hasCopyEvent &&
+      (range.to().line - range.from().line > 100 || (selected = cm.getSelection()).length > 1000)
+    var content = minimal ? "-" : selected || cm.getSelection()
+    this.textarea.value = content
+    if (cm.state.focused) { selectInput(this.textarea) }
+    if (ie && ie_version >= 9) { this.hasSelection = content }
+  } else if (!typing) {
+    this.prevInput = this.textarea.value = ""
+    if (ie && ie_version >= 9) { this.hasSelection = null }
+  }
+  this.inaccurateSelection = minimal
+};
+
+TextareaInput.prototype.getField = function () { return this.textarea };
+
+TextareaInput.prototype.supportsTouch = function () { return false };
+
+TextareaInput.prototype.focus = function () {
+  if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) {
+    try { this.textarea.focus() }
+    catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM
+  }
+};
+
+TextareaInput.prototype.blur = function () { this.textarea.blur() };
+
+TextareaInput.prototype.resetPosition = function () {
+  this.wrapper.style.top = this.wrapper.style.left = 0
+};
+
+TextareaInput.prototype.receivedFocus = function () { this.slowPoll() };
+
+// Poll for input changes, using the normal rate of polling. This
+// runs as long as the editor is focused.
+TextareaInput.prototype.slowPoll = function () {
+    var this$1 = this;
+
+  if (this.pollingFast) { return }
+  this.polling.set(this.cm.options.pollInterval, function () {
+    this$1.poll()
+    if (this$1.cm.state.focused) { this$1.slowPoll() }
+  })
+};
+
+// When an event has just come in that is likely to add or change
+// something in the input textarea, we poll faster, to ensure that
+// the change appears on the screen quickly.
+TextareaInput.prototype.fastPoll = function () {
+  var missed = false, input = this
+  input.pollingFast = true
+  function p() {
+    var changed = input.poll()
+    if (!changed && !missed) {missed = true; input.polling.set(60, p)}
+    else {input.pollingFast = false; input.slowPoll()}
+  }
+  input.polling.set(20, p)
+};
+
+// Read input from the textarea, and update the document to match.
+// When something is selected, it is present in the textarea, and
+// selected (unless it is huge, in which case a placeholder is
+// used). When nothing is selected, the cursor sits after previously
+// seen text (can be empty), which is stored in prevInput (we must
+// not reset the textarea when typing, because that breaks IME).
+TextareaInput.prototype.poll = function () {
+    var this$1 = this;
+
+  var cm = this.cm, input = this.textarea, prevInput = this.prevInput
+  // Since this is called a *lot*, try to bail out as cheaply as
+  // possible when it is clear that nothing happened. hasSelection
+  // will be the case when there is a lot of text in the textarea,
+  // in which case reading its value would be expensive.
+  if (this.contextMenuPending || !cm.state.focused ||
+      (hasSelection(input) && !prevInput && !this.composing) ||
+      cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq)
+    { return false }
+
+  var text = input.value
+  // If nothing changed, bail.
+  if (text == prevInput && !cm.somethingSelected()) { return false }
+  // Work around nonsensical selection resetting in IE9/10, and
+  // inexplicable appearance of private area unicode characters on
+  // some key combos in Mac (#2689).
+  if (ie && ie_version >= 9 && this.hasSelection === text ||
+      mac && /[\uf700-\uf7ff]/.test(text)) {
+    cm.display.input.reset()
+    return false
+  }
+
+  if (cm.doc.sel == cm.display.selForContextMenu) {
+    var first = text.charCodeAt(0)
+    if (first == 0x200b && !prevInput) { prevInput = "\u200b" }
+    if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo") }
+  }
+  // Find the part of the input that is actually new
+  var same = 0, l = Math.min(prevInput.length, text.length)
+  while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same }
+
+  runInOp(cm, function () {
+    applyTextInput(cm, text.slice(same), prevInput.length - same,
+                   null, this$1.composing ? "*compose" : null)
+
+    // Don't leave long text in the textarea, since it makes further polling slow
+    if (text.length > 1000 || text.indexOf("\n") > -1) { input.value = this$1.prevInput = "" }
+    else { this$1.prevInput = text }
+
+    if (this$1.composing) {
+      this$1.composing.range.clear()
+      this$1.composing.range = cm.markText(this$1.composing.start, cm.getCursor("to"),
+                                         {className: "CodeMirror-composing"})
+    }
+  })
+  return true
+};
+
+TextareaInput.prototype.ensurePolled = function () {
+  if (this.pollingFast && this.poll()) { this.pollingFast = false }
+};
+
+TextareaInput.prototype.onKeyPress = function () {
+  if (ie && ie_version >= 9) { this.hasSelection = null }
+  this.fastPoll()
+};
+
+TextareaInput.prototype.onContextMenu = function (e) {
+  var input = this, cm = input.cm, display = cm.display, te = input.textarea
+  var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop
+  if (!pos || presto) { return } // Opera is difficult.
+
+  // Reset the current text selection only if the click is done outside of the selection
+  // and 'resetSelectionOnContextMenu' option is true.
+  var reset = cm.options.resetSelectionOnContextMenu
+  if (reset && cm.doc.sel.contains(pos) == -1)
+    { operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll) }
+
+  var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText
+  input.wrapper.style.cssText = "position: absolute"
+  var wrapperBox = input.wrapper.getBoundingClientRect()
+  te.style.cssText = "position: absolute; width: 30px; height: 30px;\n      top: " + (e.clientY - wrapperBox.top - 5) + "px; left: " + (e.clientX - wrapperBox.left - 5) + "px;\n      z-index: 1000; background: " + (ie ? "rgba(255, 255, 255, .05)" : "transparent") + ";\n      outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);"
+  var oldScrollY
+  if (webkit) { oldScrollY = window.scrollY } // Work around Chrome issue (#2712)
+  display.input.focus()
+  if (webkit) { window.scrollTo(null, oldScrollY) }
+  display.input.reset()
+  // Adds "Select all" to context menu in FF
+  if (!cm.somethingSelected()) { te.value = input.prevInput = " " }
+  input.contextMenuPending = true
+  display.selForContextMenu = cm.doc.sel
+  clearTimeout(display.detectingSelectAll)
+
+  // Select-all will be greyed out if there's nothing to select, so
+  // this adds a zero-width space so that we can later check whether
+  // it got selected.
+  function prepareSelectAllHack() {
+    if (te.selectionStart != null) {
+      var selected = cm.somethingSelected()
+      var extval = "\u200b" + (selected ? te.value : "")
+      te.value = "\u21da" // Used to catch context-menu undo
+      te.value = extval
+      input.prevInput = selected ? "" : "\u200b"
+      te.selectionStart = 1; te.selectionEnd = extval.length
+      // Re-set this, in case some other handler touched the
+      // selection in the meantime.
+      display.selForContextMenu = cm.doc.sel
+    }
+  }
+  function rehide() {
+    input.contextMenuPending = false
+    input.wrapper.style.cssText = oldWrapperCSS
+    te.style.cssText = oldCSS
+    if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos) }
+
+    // Try to detect the user choosing select-all
+    if (te.selectionStart != null) {
+      if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack() }
+      var i = 0, poll = function () {
+        if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&
+            te.selectionEnd > 0 && input.prevInput == "\u200b") {
+          operation(cm, selectAll)(cm)
+        } else if (i++ < 10) {
+          display.detectingSelectAll = setTimeout(poll, 500)
+        } else {
+          display.selForContextMenu = null
+          display.input.reset()
+        }
+      }
+      display.detectingSelectAll = setTimeout(poll, 200)
+    }
+  }
+
+  if (ie && ie_version >= 9) { prepareSelectAllHack() }
+  if (captureRightClick) {
+    e_stop(e)
+    var mouseup = function () {
+      off(window, "mouseup", mouseup)
+      setTimeout(rehide, 20)
+    }
+    on(window, "mouseup", mouseup)
+  } else {
+    setTimeout(rehide, 50)
+  }
+};
+
+TextareaInput.prototype.readOnlyChanged = function (val) {
+  if (!val) { this.reset() }
+};
+
+TextareaInput.prototype.setUneditable = function () {};
+
+TextareaInput.prototype.needsContentAttribute = false
+
+function fromTextArea(textarea, options) {
+  options = options ? copyObj(options) : {}
+  options.value = textarea.value
+  if (!options.tabindex && textarea.tabIndex)
+    { options.tabindex = textarea.tabIndex }
+  if (!options.placeholder && textarea.placeholder)
+    { options.placeholder = textarea.placeholder }
+  // Set autofocus to true if this textarea is focused, or if it has
+  // autofocus and no other element is focused.
+  if (options.autofocus == null) {
+    var hasFocus = activeElt()
+    options.autofocus = hasFocus == textarea ||
+      textarea.getAttribute("autofocus") != null && hasFocus == document.body
+  }
+
+  function save() {textarea.value = cm.getValue()}
+
+  var realSubmit
+  if (textarea.form) {
+    on(textarea.form, "submit", save)
+    // Deplorable hack to make the submit method do the right thing.
+    if (!options.leaveSubmitMethodAlone) {
+      var form = textarea.form
+      realSubmit = form.submit
+      try {
+        var wrappedSubmit = form.submit = function () {
+          save()
+          form.submit = realSubmit
+          form.submit()
+          form.submit = wrappedSubmit
+        }
+      } catch(e) {}
+    }
+  }
+
+  options.finishInit = function (cm) {
+    cm.save = save
+    cm.getTextArea = function () { return textarea; }
+    cm.toTextArea = function () {
+      cm.toTextArea = isNaN // Prevent this from being ran twice
+      save()
+      textarea.parentNode.removeChild(cm.getWrapperElement())
+      textarea.style.display = ""
+      if (textarea.form) {
+        off(textarea.form, "submit", save)
+        if (typeof textarea.form.submit == "function")
+          { textarea.form.submit = realSubmit }
+      }
+    }
+  }
+
+  textarea.style.display = "none"
+  var cm = CodeMirror(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); },
+    options)
+  return cm
+}
+
+function addLegacyProps(CodeMirror) {
+  CodeMirror.off = off
+  CodeMirror.on = on
+  CodeMirror.wheelEventPixels = wheelEventPixels
+  CodeMirror.Doc = Doc
+  CodeMirror.splitLines = splitLinesAuto
+  CodeMirror.countColumn = countColumn
+  CodeMirror.findColumn = findColumn
+  CodeMirror.isWordChar = isWordCharBasic
+  CodeMirror.Pass = Pass
+  CodeMirror.signal = signal
+  CodeMirror.Line = Line
+  CodeMirror.changeEnd = changeEnd
+  CodeMirror.scrollbarModel = scrollbarModel
+  CodeMirror.Pos = Pos
+  CodeMirror.cmpPos = cmp
+  CodeMirror.modes = modes
+  CodeMirror.mimeModes = mimeModes
+  CodeMirror.resolveMode = resolveMode
+  CodeMirror.getMode = getMode
+  CodeMirror.modeExtensions = modeExtensions
+  CodeMirror.extendMode = extendMode
+  CodeMirror.copyState = copyState
+  CodeMirror.startState = startState
+  CodeMirror.innerMode = innerMode
+  CodeMirror.commands = commands
+  CodeMirror.keyMap = keyMap
+  CodeMirror.keyName = keyName
+  CodeMirror.isModifierKey = isModifierKey
+  CodeMirror.lookupKey = lookupKey
+  CodeMirror.normalizeKeyMap = normalizeKeyMap
+  CodeMirror.StringStream = StringStream
+  CodeMirror.SharedTextMarker = SharedTextMarker
+  CodeMirror.TextMarker = TextMarker
+  CodeMirror.LineWidget = LineWidget
+  CodeMirror.e_preventDefault = e_preventDefault
+  CodeMirror.e_stopPropagation = e_stopPropagation
+  CodeMirror.e_stop = e_stop
+  CodeMirror.addClass = addClass
+  CodeMirror.contains = contains
+  CodeMirror.rmClass = rmClass
+  CodeMirror.keyNames = keyNames
+}
+
+// EDITOR CONSTRUCTOR
+
+defineOptions(CodeMirror)
+
+addEditorMethods(CodeMirror)
+
+// Set up methods on CodeMirror's prototype to redirect to the editor's document.
+var dontDelegate = "iter insert remove copy getEditor constructor".split(" ")
+for (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
+  { CodeMirror.prototype[prop] = (function(method) {
+    return function() {return method.apply(this.doc, arguments)}
+  })(Doc.prototype[prop]) } }
+
+eventMixin(Doc)
+
+// INPUT HANDLING
+
+CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput}
+
+// MODE DEFINITION AND QUERYING
+
+// Extra arguments are stored as the mode's dependencies, which is
+// used by (legacy) mechanisms like loadmode.js to automatically
+// load a mode. (Preferred mechanism is the require/define calls.)
+CodeMirror.defineMode = function(name/*, mode, …*/) {
+  if (!CodeMirror.defaults.mode && name != "null") { CodeMirror.defaults.mode = name }
+  defineMode.apply(this, arguments)
+}
+
+CodeMirror.defineMIME = defineMIME
+
+// Minimal default mode.
+CodeMirror.defineMode("null", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); })
+CodeMirror.defineMIME("text/plain", "null")
+
+// EXTENSIONS
+
+CodeMirror.defineExtension = function (name, func) {
+  CodeMirror.prototype[name] = func
+}
+CodeMirror.defineDocExtension = function (name, func) {
+  Doc.prototype[name] = func
+}
+
+CodeMirror.fromTextArea = fromTextArea
+
+addLegacyProps(CodeMirror)
+
+CodeMirror.version = "5.25.0"
+
+return CodeMirror;
+
+})));
\ No newline at end of file
diff --git a/public/codemirror/mode/apl/apl.js b/public/codemirror/mode/apl/apl.js
new file mode 100644
index 000000000..caafe4e91
--- /dev/null
+++ b/public/codemirror/mode/apl/apl.js
@@ -0,0 +1,174 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("apl", function() {
+  var builtInOps = {
+    ".": "innerProduct",
+    "\\": "scan",
+    "/": "reduce",
+    "⌿": "reduce1Axis",
+    "⍀": "scan1Axis",
+    "¨": "each",
+    "⍣": "power"
+  };
+  var builtInFuncs = {
+    "+": ["conjugate", "add"],
+    "−": ["negate", "subtract"],
+    "×": ["signOf", "multiply"],
+    "÷": ["reciprocal", "divide"],
+    "⌈": ["ceiling", "greaterOf"],
+    "⌊": ["floor", "lesserOf"],
+    "∣": ["absolute", "residue"],
+    "⍳": ["indexGenerate", "indexOf"],
+    "?": ["roll", "deal"],
+    "⋆": ["exponentiate", "toThePowerOf"],
+    "⍟": ["naturalLog", "logToTheBase"],
+    "○": ["piTimes", "circularFuncs"],
+    "!": ["factorial", "binomial"],
+    "⌹": ["matrixInverse", "matrixDivide"],
+    "<": [null, "lessThan"],
+    "≤": [null, "lessThanOrEqual"],
+    "=": [null, "equals"],
+    ">": [null, "greaterThan"],
+    "≥": [null, "greaterThanOrEqual"],
+    "≠": [null, "notEqual"],
+    "≡": ["depth", "match"],
+    "≢": [null, "notMatch"],
+    "∈": ["enlist", "membership"],
+    "⍷": [null, "find"],
+    "∪": ["unique", "union"],
+    "∩": [null, "intersection"],
+    "∼": ["not", "without"],
+    "∨": [null, "or"],
+    "∧": [null, "and"],
+    "⍱": [null, "nor"],
+    "⍲": [null, "nand"],
+    "⍴": ["shapeOf", "reshape"],
+    ",": ["ravel", "catenate"],
+    "⍪": [null, "firstAxisCatenate"],
+    "⌽": ["reverse", "rotate"],
+    "⊖": ["axis1Reverse", "axis1Rotate"],
+    "⍉": ["transpose", null],
+    "↑": ["first", "take"],
+    "↓": [null, "drop"],
+    "⊂": ["enclose", "partitionWithAxis"],
+    "⊃": ["diclose", "pick"],
+    "⌷": [null, "index"],
+    "⍋": ["gradeUp", null],
+    "⍒": ["gradeDown", null],
+    "⊤": ["encode", null],
+    "⊥": ["decode", null],
+    "⍕": ["format", "formatByExample"],
+    "⍎": ["execute", null],
+    "⊣": ["stop", "left"],
+    "⊢": ["pass", "right"]
+  };
+
+  var isOperator = /[\.\/⌿⍀¨⍣]/;
+  var isNiladic = /⍬/;
+  var isFunction = /[\+−×÷⌈⌊∣⍳\?⋆⍟○!⌹<≤=>≥≠≡≢∈⍷∪∩∼∨∧⍱⍲⍴,⍪⌽⊖⍉↑↓⊂⊃⌷⍋⍒⊤⊥⍕⍎⊣⊢]/;
+  var isArrow = /←/;
+  var isComment = /[⍝#].*$/;
+
+  var stringEater = function(type) {
+    var prev;
+    prev = false;
+    return function(c) {
+      prev = c;
+      if (c === type) {
+        return prev === "\\";
+      }
+      return true;
+    };
+  };
+  return {
+    startState: function() {
+      return {
+        prev: false,
+        func: false,
+        op: false,
+        string: false,
+        escape: false
+      };
+    },
+    token: function(stream, state) {
+      var ch, funcName;
+      if (stream.eatSpace()) {
+        return null;
+      }
+      ch = stream.next();
+      if (ch === '"' || ch === "'") {
+        stream.eatWhile(stringEater(ch));
+        stream.next();
+        state.prev = true;
+        return "string";
+      }
+      if (/[\[{\(]/.test(ch)) {
+        state.prev = false;
+        return null;
+      }
+      if (/[\]}\)]/.test(ch)) {
+        state.prev = true;
+        return null;
+      }
+      if (isNiladic.test(ch)) {
+        state.prev = false;
+        return "niladic";
+      }
+      if (/[¯\d]/.test(ch)) {
+        if (state.func) {
+          state.func = false;
+          state.prev = false;
+        } else {
+          state.prev = true;
+        }
+        stream.eatWhile(/[\w\.]/);
+        return "number";
+      }
+      if (isOperator.test(ch)) {
+        return "operator apl-" + builtInOps[ch];
+      }
+      if (isArrow.test(ch)) {
+        return "apl-arrow";
+      }
+      if (isFunction.test(ch)) {
+        funcName = "apl-";
+        if (builtInFuncs[ch] != null) {
+          if (state.prev) {
+            funcName += builtInFuncs[ch][1];
+          } else {
+            funcName += builtInFuncs[ch][0];
+          }
+        }
+        state.func = true;
+        state.prev = false;
+        return "function " + funcName;
+      }
+      if (isComment.test(ch)) {
+        stream.skipToEnd();
+        return "comment";
+      }
+      if (ch === "∘" && stream.peek() === ".") {
+        stream.next();
+        return "function jot-dot";
+      }
+      stream.eatWhile(/[\w\$_]/);
+      state.prev = true;
+      return "keyword";
+    }
+  };
+});
+
+CodeMirror.defineMIME("text/apl", "apl");
+
+});
diff --git a/public/codemirror/mode/apl/index.html b/public/codemirror/mode/apl/index.html
new file mode 100644
index 000000000..53dda6b58
--- /dev/null
+++ b/public/codemirror/mode/apl/index.html
@@ -0,0 +1,72 @@
+
+
+CodeMirror: APL mode
+
+
+
+
+
+
+
+
+
+
+

+
APL mode

+

+
+    
+
+    
Simple mode that tries to handle APL as well as it can.

+    
It attempts to label functions/operators based upon
+    monadic/dyadic usage (but this is far from fully fleshed out).
+    This means there are meaningful classnames so hover states can
+    have popups etc.

+
+    
MIME types defined: text/apl (APL code)

+  

diff --git a/public/codemirror/mode/asciiarmor/asciiarmor.js b/public/codemirror/mode/asciiarmor/asciiarmor.js
new file mode 100644
index 000000000..d83090376
--- /dev/null
+++ b/public/codemirror/mode/asciiarmor/asciiarmor.js
@@ -0,0 +1,73 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  function errorIfNotEmpty(stream) {
+    var nonWS = stream.match(/^\s*\S/);
+    stream.skipToEnd();
+    return nonWS ? "error" : null;
+  }
+
+  CodeMirror.defineMode("asciiarmor", function() {
+    return {
+      token: function(stream, state) {
+        var m;
+        if (state.state == "top") {
+          if (stream.sol() && (m = stream.match(/^-----BEGIN (.*)?-----\s*$/))) {
+            state.state = "headers";
+            state.type = m[1];
+            return "tag";
+          }
+          return errorIfNotEmpty(stream);
+        } else if (state.state == "headers") {
+          if (stream.sol() && stream.match(/^\w+:/)) {
+            state.state = "header";
+            return "atom";
+          } else {
+            var result = errorIfNotEmpty(stream);
+            if (result) state.state = "body";
+            return result;
+          }
+        } else if (state.state == "header") {
+          stream.skipToEnd();
+          state.state = "headers";
+          return "string";
+        } else if (state.state == "body") {
+          if (stream.sol() && (m = stream.match(/^-----END (.*)?-----\s*$/))) {
+            if (m[1] != state.type) return "error";
+            state.state = "end";
+            return "tag";
+          } else {
+            if (stream.eatWhile(/[A-Za-z0-9+\/=]/)) {
+              return null;
+            } else {
+              stream.next();
+              return "error";
+            }
+          }
+        } else if (state.state == "end") {
+          return errorIfNotEmpty(stream);
+        }
+      },
+      blankLine: function(state) {
+        if (state.state == "headers") state.state = "body";
+      },
+      startState: function() {
+        return {state: "top", type: null};
+      }
+    };
+  });
+
+  CodeMirror.defineMIME("application/pgp", "asciiarmor");
+  CodeMirror.defineMIME("application/pgp-keys", "asciiarmor");
+  CodeMirror.defineMIME("application/pgp-signature", "asciiarmor");
+});
diff --git a/public/codemirror/mode/asciiarmor/index.html b/public/codemirror/mode/asciiarmor/index.html
new file mode 100644
index 000000000..8ba1b5c76
--- /dev/null
+++ b/public/codemirror/mode/asciiarmor/index.html
@@ -0,0 +1,46 @@
+
+
+CodeMirror: ASCII Armor (PGP) mode
+
+
+
+
+
+
+
+
+
+

+
ASCII Armor (PGP) mode

+

+
+
+
+
MIME types
+defined: application/pgp, application/pgp-keys, application/pgp-signature

+
+

diff --git a/public/codemirror/mode/asn.1/asn.1.js b/public/codemirror/mode/asn.1/asn.1.js
new file mode 100644
index 000000000..9600247ea
--- /dev/null
+++ b/public/codemirror/mode/asn.1/asn.1.js
@@ -0,0 +1,204 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineMode("asn.1", function(config, parserConfig) {
+    var indentUnit = config.indentUnit,
+        keywords = parserConfig.keywords || {},
+        cmipVerbs = parserConfig.cmipVerbs || {},
+        compareTypes = parserConfig.compareTypes || {},
+        status = parserConfig.status || {},
+        tags = parserConfig.tags || {},
+        storage = parserConfig.storage || {},
+        modifier = parserConfig.modifier || {},
+        accessTypes = parserConfig.accessTypes|| {},
+        multiLineStrings = parserConfig.multiLineStrings,
+        indentStatements = parserConfig.indentStatements !== false;
+    var isOperatorChar = /[\|\^]/;
+    var curPunc;
+
+    function tokenBase(stream, state) {
+      var ch = stream.next();
+      if (ch == '"' || ch == "'") {
+        state.tokenize = tokenString(ch);
+        return state.tokenize(stream, state);
+      }
+      if (/[\[\]\(\){}:=,;]/.test(ch)) {
+        curPunc = ch;
+        return "punctuation";
+      }
+      if (ch == "-"){
+        if (stream.eat("-")) {
+          stream.skipToEnd();
+          return "comment";
+        }
+      }
+      if (/\d/.test(ch)) {
+        stream.eatWhile(/[\w\.]/);
+        return "number";
+      }
+      if (isOperatorChar.test(ch)) {
+        stream.eatWhile(isOperatorChar);
+        return "operator";
+      }
+
+      stream.eatWhile(/[\w\-]/);
+      var cur = stream.current();
+      if (keywords.propertyIsEnumerable(cur)) return "keyword";
+      if (cmipVerbs.propertyIsEnumerable(cur)) return "variable cmipVerbs";
+      if (compareTypes.propertyIsEnumerable(cur)) return "atom compareTypes";
+      if (status.propertyIsEnumerable(cur)) return "comment status";
+      if (tags.propertyIsEnumerable(cur)) return "variable-3 tags";
+      if (storage.propertyIsEnumerable(cur)) return "builtin storage";
+      if (modifier.propertyIsEnumerable(cur)) return "string-2 modifier";
+      if (accessTypes.propertyIsEnumerable(cur)) return "atom accessTypes";
+
+      return "variable";
+    }
+
+    function tokenString(quote) {
+      return function(stream, state) {
+        var escaped = false, next, end = false;
+        while ((next = stream.next()) != null) {
+          if (next == quote && !escaped){
+            var afterNext = stream.peek();
+            //look if the character if the quote is like the B in '10100010'B
+            if (afterNext){
+              afterNext = afterNext.toLowerCase();
+              if(afterNext == "b" || afterNext == "h" || afterNext == "o")
+                stream.next();
+            }
+            end = true; break;
+          }
+          escaped = !escaped && next == "\\";
+        }
+        if (end || !(escaped || multiLineStrings))
+          state.tokenize = null;
+        return "string";
+      };
+    }
+
+    function Context(indented, column, type, align, prev) {
+      this.indented = indented;
+      this.column = column;
+      this.type = type;
+      this.align = align;
+      this.prev = prev;
+    }
+    function pushContext(state, col, type) {
+      var indent = state.indented;
+      if (state.context && state.context.type == "statement")
+        indent = state.context.indented;
+      return state.context = new Context(indent, col, type, null, state.context);
+    }
+    function popContext(state) {
+      var t = state.context.type;
+      if (t == ")" || t == "]" || t == "}")
+        state.indented = state.context.indented;
+      return state.context = state.context.prev;
+    }
+
+    //Interface
+    return {
+      startState: function(basecolumn) {
+        return {
+          tokenize: null,
+          context: new Context((basecolumn || 0) - indentUnit, 0, "top", false),
+          indented: 0,
+          startOfLine: true
+        };
+      },
+
+      token: function(stream, state) {
+        var ctx = state.context;
+        if (stream.sol()) {
+          if (ctx.align == null) ctx.align = false;
+          state.indented = stream.indentation();
+          state.startOfLine = true;
+        }
+        if (stream.eatSpace()) return null;
+        curPunc = null;
+        var style = (state.tokenize || tokenBase)(stream, state);
+        if (style == "comment") return style;
+        if (ctx.align == null) ctx.align = true;
+
+        if ((curPunc == ";" || curPunc == ":" || curPunc == ",")
+            && ctx.type == "statement"){
+          popContext(state);
+        }
+        else if (curPunc == "{") pushContext(state, stream.column(), "}");
+        else if (curPunc == "[") pushContext(state, stream.column(), "]");
+        else if (curPunc == "(") pushContext(state, stream.column(), ")");
+        else if (curPunc == "}") {
+          while (ctx.type == "statement") ctx = popContext(state);
+          if (ctx.type == "}") ctx = popContext(state);
+          while (ctx.type == "statement") ctx = popContext(state);
+        }
+        else if (curPunc == ctx.type) popContext(state);
+        else if (indentStatements && (((ctx.type == "}" || ctx.type == "top")
+            && curPunc != ';') || (ctx.type == "statement"
+            && curPunc == "newstatement")))
+          pushContext(state, stream.column(), "statement");
+
+        state.startOfLine = false;
+        return style;
+      },
+
+      electricChars: "{}",
+      lineComment: "--",
+      fold: "brace"
+    };
+  });
+
+  function words(str) {
+    var obj = {}, words = str.split(" ");
+    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+    return obj;
+  }
+
+  CodeMirror.defineMIME("text/x-ttcn-asn", {
+    name: "asn.1",
+    keywords: words("DEFINITIONS OBJECTS IF DERIVED INFORMATION ACTION" +
+    " REPLY ANY NAMED CHARACTERIZED BEHAVIOUR REGISTERED" +
+    " WITH AS IDENTIFIED CONSTRAINED BY PRESENT BEGIN" +
+    " IMPORTS FROM UNITS SYNTAX MIN-ACCESS MAX-ACCESS" +
+    " MINACCESS MAXACCESS REVISION STATUS DESCRIPTION" +
+    " SEQUENCE SET COMPONENTS OF CHOICE DistinguishedName" +
+    " ENUMERATED SIZE MODULE END INDEX AUGMENTS EXTENSIBILITY" +
+    " IMPLIED EXPORTS"),
+    cmipVerbs: words("ACTIONS ADD GET NOTIFICATIONS REPLACE REMOVE"),
+    compareTypes: words("OPTIONAL DEFAULT MANAGED MODULE-TYPE MODULE_IDENTITY" +
+    " MODULE-COMPLIANCE OBJECT-TYPE OBJECT-IDENTITY" +
+    " OBJECT-COMPLIANCE MODE CONFIRMED CONDITIONAL" +
+    " SUBORDINATE SUPERIOR CLASS TRUE FALSE NULL" +
+    " TEXTUAL-CONVENTION"),
+    status: words("current deprecated mandatory obsolete"),
+    tags: words("APPLICATION AUTOMATIC EXPLICIT IMPLICIT PRIVATE TAGS" +
+    " UNIVERSAL"),
+    storage: words("BOOLEAN INTEGER OBJECT IDENTIFIER BIT OCTET STRING" +
+    " UTCTime InterfaceIndex IANAifType CMIP-Attribute" +
+    " REAL PACKAGE PACKAGES IpAddress PhysAddress" +
+    " NetworkAddress BITS BMPString TimeStamp TimeTicks" +
+    " TruthValue RowStatus DisplayString GeneralString" +
+    " GraphicString IA5String NumericString" +
+    " PrintableString SnmpAdminAtring TeletexString" +
+    " UTF8String VideotexString VisibleString StringStore" +
+    " ISO646String T61String UniversalString Unsigned32" +
+    " Integer32 Gauge Gauge32 Counter Counter32 Counter64"),
+    modifier: words("ATTRIBUTE ATTRIBUTES MANDATORY-GROUP MANDATORY-GROUPS" +
+    " GROUP GROUPS ELEMENTS EQUALITY ORDERING SUBSTRINGS" +
+    " DEFINED"),
+    accessTypes: words("not-accessible accessible-for-notify read-only" +
+    " read-create read-write"),
+    multiLineStrings: true
+  });
+});
diff --git a/public/codemirror/mode/asn.1/index.html b/public/codemirror/mode/asn.1/index.html
new file mode 100644
index 000000000..699fd4473
--- /dev/null
+++ b/public/codemirror/mode/asn.1/index.html
@@ -0,0 +1,77 @@
+
+
+CodeMirror: ASN.1 mode
+
+
+
+
+
+
+
+
+

+    
ASN.1 example

+    

+        
+    

+
+    
+    

+    
Language: Abstract Syntax Notation One
+        (ASN.1)
+    

+    
MIME types defined: text/x-ttcn-asn

+
+    

+    
The development of this mode has been sponsored by Ericsson
+    .

+    
Coded by Asmelash Tsegay Gebretsadkan 

+

+
diff --git a/public/codemirror/mode/asterisk/asterisk.js b/public/codemirror/mode/asterisk/asterisk.js
new file mode 100644
index 000000000..b7ebfc5ad
--- /dev/null
+++ b/public/codemirror/mode/asterisk/asterisk.js
@@ -0,0 +1,196 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+/*
+ * =====================================================================================
+ *
+ *       Filename:  mode/asterisk/asterisk.js
+ *
+ *    Description:  CodeMirror mode for Asterisk dialplan
+ *
+ *        Created:  05/17/2012 09:20:25 PM
+ *       Revision:  none
+ *
+ *         Author:  Stas Kobzar (stas@modulis.ca),
+ *        Company:  Modulis.ca Inc.
+ *
+ * =====================================================================================
+ */
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("asterisk", function() {
+  var atoms    = ["exten", "same", "include","ignorepat","switch"],
+      dpcmd    = ["#include","#exec"],
+      apps     = [
+                  "addqueuemember","adsiprog","aelsub","agentlogin","agentmonitoroutgoing","agi",
+                  "alarmreceiver","amd","answer","authenticate","background","backgrounddetect",
+                  "bridge","busy","callcompletioncancel","callcompletionrequest","celgenuserevent",
+                  "changemonitor","chanisavail","channelredirect","chanspy","clearhash","confbridge",
+                  "congestion","continuewhile","controlplayback","dahdiacceptr2call","dahdibarge",
+                  "dahdiras","dahdiscan","dahdisendcallreroutingfacility","dahdisendkeypadfacility",
+                  "datetime","dbdel","dbdeltree","deadagi","dial","dictate","directory","disa",
+                  "dumpchan","eagi","echo","endwhile","exec","execif","execiftime","exitwhile","extenspy",
+                  "externalivr","festival","flash","followme","forkcdr","getcpeid","gosub","gosubif",
+                  "goto","gotoif","gotoiftime","hangup","iax2provision","ices","importvar","incomplete",
+                  "ivrdemo","jabberjoin","jabberleave","jabbersend","jabbersendgroup","jabberstatus",
+                  "jack","log","macro","macroexclusive","macroexit","macroif","mailboxexists","meetme",
+                  "meetmeadmin","meetmechanneladmin","meetmecount","milliwatt","minivmaccmess","minivmdelete",
+                  "minivmgreet","minivmmwi","minivmnotify","minivmrecord","mixmonitor","monitor","morsecode",
+                  "mp3player","mset","musiconhold","nbscat","nocdr","noop","odbc","odbc","odbcfinish",
+                  "originate","ospauth","ospfinish","osplookup","ospnext","page","park","parkandannounce",
+                  "parkedcall","pausemonitor","pausequeuemember","pickup","pickupchan","playback","playtones",
+                  "privacymanager","proceeding","progress","queue","queuelog","raiseexception","read","readexten",
+                  "readfile","receivefax","receivefax","receivefax","record","removequeuemember",
+                  "resetcdr","retrydial","return","ringing","sayalpha","saycountedadj","saycountednoun",
+                  "saycountpl","saydigits","saynumber","sayphonetic","sayunixtime","senddtmf","sendfax",
+                  "sendfax","sendfax","sendimage","sendtext","sendurl","set","setamaflags",
+                  "setcallerpres","setmusiconhold","sipaddheader","sipdtmfmode","sipremoveheader","skel",
+                  "slastation","slatrunk","sms","softhangup","speechactivategrammar","speechbackground",
+                  "speechcreate","speechdeactivategrammar","speechdestroy","speechloadgrammar","speechprocessingsound",
+                  "speechstart","speechunloadgrammar","stackpop","startmusiconhold","stopmixmonitor","stopmonitor",
+                  "stopmusiconhold","stopplaytones","system","testclient","testserver","transfer","tryexec",
+                  "trysystem","unpausemonitor","unpausequeuemember","userevent","verbose","vmauthenticate",
+                  "vmsayname","voicemail","voicemailmain","wait","waitexten","waitfornoise","waitforring",
+                  "waitforsilence","waitmusiconhold","waituntil","while","zapateller"
+                 ];
+
+  function basicToken(stream,state){
+    var cur = '';
+    var ch = stream.next();
+    // comment
+    if(ch == ";") {
+      stream.skipToEnd();
+      return "comment";
+    }
+    // context
+    if(ch == '[') {
+      stream.skipTo(']');
+      stream.eat(']');
+      return "header";
+    }
+    // string
+    if(ch == '"') {
+      stream.skipTo('"');
+      return "string";
+    }
+    if(ch == "'") {
+      stream.skipTo("'");
+      return "string-2";
+    }
+    // dialplan commands
+    if(ch == '#') {
+      stream.eatWhile(/\w/);
+      cur = stream.current();
+      if(dpcmd.indexOf(cur) !== -1) {
+        stream.skipToEnd();
+        return "strong";
+      }
+    }
+    // application args
+    if(ch == '$'){
+      var ch1 = stream.peek();
+      if(ch1 == '{'){
+        stream.skipTo('}');
+        stream.eat('}');
+        return "variable-3";
+      }
+    }
+    // extension
+    stream.eatWhile(/\w/);
+    cur = stream.current();
+    if(atoms.indexOf(cur) !== -1) {
+      state.extenStart = true;
+      switch(cur) {
+        case 'same': state.extenSame = true; break;
+        case 'include':
+        case 'switch':
+        case 'ignorepat':
+          state.extenInclude = true;break;
+        default:break;
+      }
+      return "atom";
+    }
+  }
+
+  return {
+    startState: function() {
+      return {
+        extenStart: false,
+        extenSame:  false,
+        extenInclude: false,
+        extenExten: false,
+        extenPriority: false,
+        extenApplication: false
+      };
+    },
+    token: function(stream, state) {
+
+      var cur = '';
+      if(stream.eatSpace()) return null;
+      // extension started
+      if(state.extenStart){
+        stream.eatWhile(/[^\s]/);
+        cur = stream.current();
+        if(/^=>?$/.test(cur)){
+          state.extenExten = true;
+          state.extenStart = false;
+          return "strong";
+        } else {
+          state.extenStart = false;
+          stream.skipToEnd();
+          return "error";
+        }
+      } else if(state.extenExten) {
+        // set exten and priority
+        state.extenExten = false;
+        state.extenPriority = true;
+        stream.eatWhile(/[^,]/);
+        if(state.extenInclude) {
+          stream.skipToEnd();
+          state.extenPriority = false;
+          state.extenInclude = false;
+        }
+        if(state.extenSame) {
+          state.extenPriority = false;
+          state.extenSame = false;
+          state.extenApplication = true;
+        }
+        return "tag";
+      } else if(state.extenPriority) {
+        state.extenPriority = false;
+        state.extenApplication = true;
+        stream.next(); // get comma
+        if(state.extenSame) return null;
+        stream.eatWhile(/[^,]/);
+        return "number";
+      } else if(state.extenApplication) {
+        stream.eatWhile(/,/);
+        cur = stream.current();
+        if(cur === ',') return null;
+        stream.eatWhile(/\w/);
+        cur = stream.current().toLowerCase();
+        state.extenApplication = false;
+        if(apps.indexOf(cur) !== -1){
+          return "def strong";
+        }
+      } else{
+        return basicToken(stream,state);
+      }
+
+      return null;
+    }
+  };
+});
+
+CodeMirror.defineMIME("text/x-asterisk", "asterisk");
+
+});
diff --git a/public/codemirror/mode/asterisk/index.html b/public/codemirror/mode/asterisk/index.html
new file mode 100644
index 000000000..257bd3987
--- /dev/null
+++ b/public/codemirror/mode/asterisk/index.html
@@ -0,0 +1,154 @@
+
+
+CodeMirror: Asterisk dialplan mode
+
+
+
+
+
+
+
+
+
+

+
Asterisk dialplan mode

+

+    
+
+    
MIME types defined: text/x-asterisk.

+
+  

diff --git a/public/codemirror/mode/brainfuck/brainfuck.js b/public/codemirror/mode/brainfuck/brainfuck.js
new file mode 100644
index 000000000..3becf2a5a
--- /dev/null
+++ b/public/codemirror/mode/brainfuck/brainfuck.js
@@ -0,0 +1,85 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// Brainfuck mode created by Michael Kaminsky https://github.com/mkaminsky11
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object")
+    mod(require("../../lib/codemirror"))
+  else if (typeof define == "function" && define.amd)
+    define(["../../lib/codemirror"], mod)
+  else
+    mod(CodeMirror)
+})(function(CodeMirror) {
+  "use strict"
+  var reserve = "><+-.,[]".split("");
+  /*
+  comments can be either:
+  placed behind lines
+
+        +++    this is a comment
+
+  where reserved characters cannot be used
+  or in a loop
+  [
+    this is ok to use [ ] and stuff
+  ]
+  or preceded by #
+  */
+  CodeMirror.defineMode("brainfuck", function() {
+    return {
+      startState: function() {
+        return {
+          commentLine: false,
+          left: 0,
+          right: 0,
+          commentLoop: false
+        }
+      },
+      token: function(stream, state) {
+        if (stream.eatSpace()) return null
+        if(stream.sol()){
+          state.commentLine = false;
+        }
+        var ch = stream.next().toString();
+        if(reserve.indexOf(ch) !== -1){
+          if(state.commentLine === true){
+            if(stream.eol()){
+              state.commentLine = false;
+            }
+            return "comment";
+          }
+          if(ch === "]" || ch === "["){
+            if(ch === "["){
+              state.left++;
+            }
+            else{
+              state.right++;
+            }
+            return "bracket";
+          }
+          else if(ch === "+" || ch === "-"){
+            return "keyword";
+          }
+          else if(ch === "<" || ch === ">"){
+            return "atom";
+          }
+          else if(ch === "." || ch === ","){
+            return "def";
+          }
+        }
+        else{
+          state.commentLine = true;
+          if(stream.eol()){
+            state.commentLine = false;
+          }
+          return "comment";
+        }
+        if(stream.eol()){
+          state.commentLine = false;
+        }
+      }
+    };
+  });
+CodeMirror.defineMIME("text/x-brainfuck","brainfuck")
+});
diff --git a/public/codemirror/mode/brainfuck/index.html b/public/codemirror/mode/brainfuck/index.html
new file mode 100644
index 000000000..6048fc241
--- /dev/null
+++ b/public/codemirror/mode/brainfuck/index.html
@@ -0,0 +1,85 @@
+
+
+CodeMirror: Brainfuck mode
+
+
+
+
+
+
+
+
+
+
+

+
Brainfuck mode

+

+
+    
+
+    
A mode for Brainfuck

+
+    
MIME types defined: text/x-brainfuck

+  

diff --git a/public/codemirror/mode/clike/clike.js b/public/codemirror/mode/clike/clike.js
new file mode 100644
index 000000000..ee7b077ee
--- /dev/null
+++ b/public/codemirror/mode/clike/clike.js
@@ -0,0 +1,787 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+function Context(indented, column, type, info, align, prev) {
+  this.indented = indented;
+  this.column = column;
+  this.type = type;
+  this.info = info;
+  this.align = align;
+  this.prev = prev;
+}
+function pushContext(state, col, type, info) {
+  var indent = state.indented;
+  if (state.context && state.context.type == "statement" && type != "statement")
+    indent = state.context.indented;
+  return state.context = new Context(indent, col, type, info, null, state.context);
+}
+function popContext(state) {
+  var t = state.context.type;
+  if (t == ")" || t == "]" || t == "}")
+    state.indented = state.context.indented;
+  return state.context = state.context.prev;
+}
+
+function typeBefore(stream, state, pos) {
+  if (state.prevToken == "variable" || state.prevToken == "variable-3") return true;
+  if (/\S(?:[^- ]>|[*\]])\s*$|\*$/.test(stream.string.slice(0, pos))) return true;
+  if (state.typeAtEndOfLine && stream.column() == stream.indentation()) return true;
+}
+
+function isTopScope(context) {
+  for (;;) {
+    if (!context || context.type == "top") return true;
+    if (context.type == "}" && context.prev.info != "namespace") return false;
+    context = context.prev;
+  }
+}
+
+CodeMirror.defineMode("clike", function(config, parserConfig) {
+  var indentUnit = config.indentUnit,
+      statementIndentUnit = parserConfig.statementIndentUnit || indentUnit,
+      dontAlignCalls = parserConfig.dontAlignCalls,
+      keywords = parserConfig.keywords || {},
+      types = parserConfig.types || {},
+      builtin = parserConfig.builtin || {},
+      blockKeywords = parserConfig.blockKeywords || {},
+      defKeywords = parserConfig.defKeywords || {},
+      atoms = parserConfig.atoms || {},
+      hooks = parserConfig.hooks || {},
+      multiLineStrings = parserConfig.multiLineStrings,
+      indentStatements = parserConfig.indentStatements !== false,
+      indentSwitch = parserConfig.indentSwitch !== false,
+      namespaceSeparator = parserConfig.namespaceSeparator,
+      isPunctuationChar = parserConfig.isPunctuationChar || /[\[\]{}\(\),;\:\.]/,
+      numberStart = parserConfig.numberStart || /[\d\.]/,
+      number = parserConfig.number || /^(?:0x[a-f\d]+|0b[01]+|(?:\d+\.?\d*|\.\d+)(?:e[-+]?\d+)?)(u|ll?|l|f)?/i,
+      isOperatorChar = parserConfig.isOperatorChar || /[+\-*&%=<>!?|\/]/;
+
+  var curPunc, isDefKeyword;
+
+  function tokenBase(stream, state) {
+    var ch = stream.next();
+    if (hooks[ch]) {
+      var result = hooks[ch](stream, state);
+      if (result !== false) return result;
+    }
+    if (ch == '"' || ch == "'") {
+      state.tokenize = tokenString(ch);
+      return state.tokenize(stream, state);
+    }
+    if (isPunctuationChar.test(ch)) {
+      curPunc = ch;
+      return null;
+    }
+    if (numberStart.test(ch)) {
+      stream.backUp(1)
+      if (stream.match(number)) return "number"
+      stream.next()
+    }
+    if (ch == "/") {
+      if (stream.eat("*")) {
+        state.tokenize = tokenComment;
+        return tokenComment(stream, state);
+      }
+      if (stream.eat("/")) {
+        stream.skipToEnd();
+        return "comment";
+      }
+    }
+    if (isOperatorChar.test(ch)) {
+      while (!stream.match(/^\/[\/*]/, false) && stream.eat(isOperatorChar)) {}
+      return "operator";
+    }
+    stream.eatWhile(/[\w\$_\xa1-\uffff]/);
+    if (namespaceSeparator) while (stream.match(namespaceSeparator))
+      stream.eatWhile(/[\w\$_\xa1-\uffff]/);
+
+    var cur = stream.current();
+    if (contains(keywords, cur)) {
+      if (contains(blockKeywords, cur)) curPunc = "newstatement";
+      if (contains(defKeywords, cur)) isDefKeyword = true;
+      return "keyword";
+    }
+    if (contains(types, cur)) return "variable-3";
+    if (contains(builtin, cur)) {
+      if (contains(blockKeywords, cur)) curPunc = "newstatement";
+      return "builtin";
+    }
+    if (contains(atoms, cur)) return "atom";
+    return "variable";
+  }
+
+  function tokenString(quote) {
+    return function(stream, state) {
+      var escaped = false, next, end = false;
+      while ((next = stream.next()) != null) {
+        if (next == quote && !escaped) {end = true; break;}
+        escaped = !escaped && next == "\\";
+      }
+      if (end || !(escaped || multiLineStrings))
+        state.tokenize = null;
+      return "string";
+    };
+  }
+
+  function tokenComment(stream, state) {
+    var maybeEnd = false, ch;
+    while (ch = stream.next()) {
+      if (ch == "/" && maybeEnd) {
+        state.tokenize = null;
+        break;
+      }
+      maybeEnd = (ch == "*");
+    }
+    return "comment";
+  }
+
+  function maybeEOL(stream, state) {
+    if (parserConfig.typeFirstDefinitions && stream.eol() && isTopScope(state.context))
+      state.typeAtEndOfLine = typeBefore(stream, state, stream.pos)
+  }
+
+  // Interface
+
+  return {
+    startState: function(basecolumn) {
+      return {
+        tokenize: null,
+        context: new Context((basecolumn || 0) - indentUnit, 0, "top", null, false),
+        indented: 0,
+        startOfLine: true,
+        prevToken: null
+      };
+    },
+
+    token: function(stream, state) {
+      var ctx = state.context;
+      if (stream.sol()) {
+        if (ctx.align == null) ctx.align = false;
+        state.indented = stream.indentation();
+        state.startOfLine = true;
+      }
+      if (stream.eatSpace()) { maybeEOL(stream, state); return null; }
+      curPunc = isDefKeyword = null;
+      var style = (state.tokenize || tokenBase)(stream, state);
+      if (style == "comment" || style == "meta") return style;
+      if (ctx.align == null) ctx.align = true;
+
+      if (curPunc == ";" || curPunc == ":" || (curPunc == "," && stream.match(/^\s*(?:\/\/.*)?$/, false)))
+        while (state.context.type == "statement") popContext(state);
+      else if (curPunc == "{") pushContext(state, stream.column(), "}");
+      else if (curPunc == "[") pushContext(state, stream.column(), "]");
+      else if (curPunc == "(") pushContext(state, stream.column(), ")");
+      else if (curPunc == "}") {
+        while (ctx.type == "statement") ctx = popContext(state);
+        if (ctx.type == "}") ctx = popContext(state);
+        while (ctx.type == "statement") ctx = popContext(state);
+      }
+      else if (curPunc == ctx.type) popContext(state);
+      else if (indentStatements &&
+               (((ctx.type == "}" || ctx.type == "top") && curPunc != ";") ||
+                (ctx.type == "statement" && curPunc == "newstatement"))) {
+        pushContext(state, stream.column(), "statement", stream.current());
+      }
+
+      if (style == "variable" &&
+          ((state.prevToken == "def" ||
+            (parserConfig.typeFirstDefinitions && typeBefore(stream, state, stream.start) &&
+             isTopScope(state.context) && stream.match(/^\s*\(/, false)))))
+        style = "def";
+
+      if (hooks.token) {
+        var result = hooks.token(stream, state, style);
+        if (result !== undefined) style = result;
+      }
+
+      if (style == "def" && parserConfig.styleDefs === false) style = "variable";
+
+      state.startOfLine = false;
+      state.prevToken = isDefKeyword ? "def" : style || curPunc;
+      maybeEOL(stream, state);
+      return style;
+    },
+
+    indent: function(state, textAfter) {
+      if (state.tokenize != tokenBase && state.tokenize != null || state.typeAtEndOfLine) return CodeMirror.Pass;
+      var ctx = state.context, firstChar = textAfter && textAfter.charAt(0);
+      if (ctx.type == "statement" && firstChar == "}") ctx = ctx.prev;
+      if (parserConfig.dontIndentStatements)
+        while (ctx.type == "statement" && parserConfig.dontIndentStatements.test(ctx.info))
+          ctx = ctx.prev
+      if (hooks.indent) {
+        var hook = hooks.indent(state, ctx, textAfter);
+        if (typeof hook == "number") return hook
+      }
+      var closing = firstChar == ctx.type;
+      var switchBlock = ctx.prev && ctx.prev.info == "switch";
+      if (parserConfig.allmanIndentation && /[{(]/.test(firstChar)) {
+        while (ctx.type != "top" && ctx.type != "}") ctx = ctx.prev
+        return ctx.indented
+      }
+      if (ctx.type == "statement")
+        return ctx.indented + (firstChar == "{" ? 0 : statementIndentUnit);
+      if (ctx.align && (!dontAlignCalls || ctx.type != ")"))
+        return ctx.column + (closing ? 0 : 1);
+      if (ctx.type == ")" && !closing)
+        return ctx.indented + statementIndentUnit;
+
+      return ctx.indented + (closing ? 0 : indentUnit) +
+        (!closing && switchBlock && !/^(?:case|default)\b/.test(textAfter) ? indentUnit : 0);
+    },
+
+    electricInput: indentSwitch ? /^\s*(?:case .*?:|default:|\{\}?|\})$/ : /^\s*[{}]$/,
+    blockCommentStart: "/*",
+    blockCommentEnd: "*/",
+    lineComment: "//",
+    fold: "brace"
+  };
+});
+
+  function words(str) {
+    var obj = {}, words = str.split(" ");
+    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+    return obj;
+  }
+  function contains(words, word) {
+    if (typeof words === "function") {
+      return words(word);
+    } else {
+      return words.propertyIsEnumerable(word);
+    }
+  }
+  var cKeywords = "auto if break case register continue return default do sizeof " +
+    "static else struct switch extern typedef union for goto while enum const volatile";
+  var cTypes = "int long char short double float unsigned signed void size_t ptrdiff_t";
+
+  function cppHook(stream, state) {
+    if (!state.startOfLine) return false
+    for (var ch, next = null; ch = stream.peek();) {
+      if (ch == "\\" && stream.match(/^.$/)) {
+        next = cppHook
+        break
+      } else if (ch == "/" && stream.match(/^\/[\/\*]/, false)) {
+        break
+      }
+      stream.next()
+    }
+    state.tokenize = next
+    return "meta"
+  }
+
+  function pointerHook(_stream, state) {
+    if (state.prevToken == "variable-3") return "variable-3";
+    return false;
+  }
+
+  function cpp14Literal(stream) {
+    stream.eatWhile(/[\w\.']/);
+    return "number";
+  }
+
+  function cpp11StringHook(stream, state) {
+    stream.backUp(1);
+    // Raw strings.
+    if (stream.match(/(R|u8R|uR|UR|LR)/)) {
+      var match = stream.match(/"([^\s\\()]{0,16})\(/);
+      if (!match) {
+        return false;
+      }
+      state.cpp11RawStringDelim = match[1];
+      state.tokenize = tokenRawString;
+      return tokenRawString(stream, state);
+    }
+    // Unicode strings/chars.
+    if (stream.match(/(u8|u|U|L)/)) {
+      if (stream.match(/["']/, /* eat */ false)) {
+        return "string";
+      }
+      return false;
+    }
+    // Ignore this hook.
+    stream.next();
+    return false;
+  }
+
+  function cppLooksLikeConstructor(word) {
+    var lastTwo = /(\w+)::(\w+)$/.exec(word);
+    return lastTwo && lastTwo[1] == lastTwo[2];
+  }
+
+  // C#-style strings where "" escapes a quote.
+  function tokenAtString(stream, state) {
+    var next;
+    while ((next = stream.next()) != null) {
+      if (next == '"' && !stream.eat('"')) {
+        state.tokenize = null;
+        break;
+      }
+    }
+    return "string";
+  }
+
+  // C++11 raw string literal is "( anything )", where
+  //  can be a string up to 16 characters long.
+  function tokenRawString(stream, state) {
+    // Escape characters that have special regex meanings.
+    var delim = state.cpp11RawStringDelim.replace(/[^\w\s]/g, '\\$&');
+    var match = stream.match(new RegExp(".*?\\)" + delim + '"'));
+    if (match)
+      state.tokenize = null;
+    else
+      stream.skipToEnd();
+    return "string";
+  }
+
+  function def(mimes, mode) {
+    if (typeof mimes == "string") mimes = [mimes];
+    var words = [];
+    function add(obj) {
+      if (obj) for (var prop in obj) if (obj.hasOwnProperty(prop))
+        words.push(prop);
+    }
+    add(mode.keywords);
+    add(mode.types);
+    add(mode.builtin);
+    add(mode.atoms);
+    if (words.length) {
+      mode.helperType = mimes[0];
+      CodeMirror.registerHelper("hintWords", mimes[0], words);
+    }
+
+    for (var i = 0; i < mimes.length; ++i)
+      CodeMirror.defineMIME(mimes[i], mode);
+  }
+
+  def(["text/x-csrc", "text/x-c", "text/x-chdr"], {
+    name: "clike",
+    keywords: words(cKeywords),
+    types: words(cTypes + " bool _Complex _Bool float_t double_t intptr_t intmax_t " +
+                 "int8_t int16_t int32_t int64_t uintptr_t uintmax_t uint8_t uint16_t " +
+                 "uint32_t uint64_t"),
+    blockKeywords: words("case do else for if switch while struct"),
+    defKeywords: words("struct"),
+    typeFirstDefinitions: true,
+    atoms: words("null true false"),
+    hooks: {"#": cppHook, "*": pointerHook},
+    modeProps: {fold: ["brace", "include"]}
+  });
+
+  def(["text/x-c++src", "text/x-c++hdr"], {
+    name: "clike",
+    keywords: words(cKeywords + " asm dynamic_cast namespace reinterpret_cast try explicit new " +
+                    "static_cast typeid catch operator template typename class friend private " +
+                    "this using const_cast inline public throw virtual delete mutable protected " +
+                    "alignas alignof constexpr decltype nullptr noexcept thread_local final " +
+                    "static_assert override"),
+    types: words(cTypes + " bool wchar_t"),
+    blockKeywords: words("catch class do else finally for if struct switch try while"),
+    defKeywords: words("class namespace struct enum union"),
+    typeFirstDefinitions: true,
+    atoms: words("true false null"),
+    dontIndentStatements: /^template$/,
+    hooks: {
+      "#": cppHook,
+      "*": pointerHook,
+      "u": cpp11StringHook,
+      "U": cpp11StringHook,
+      "L": cpp11StringHook,
+      "R": cpp11StringHook,
+      "0": cpp14Literal,
+      "1": cpp14Literal,
+      "2": cpp14Literal,
+      "3": cpp14Literal,
+      "4": cpp14Literal,
+      "5": cpp14Literal,
+      "6": cpp14Literal,
+      "7": cpp14Literal,
+      "8": cpp14Literal,
+      "9": cpp14Literal,
+      token: function(stream, state, style) {
+        if (style == "variable" && stream.peek() == "(" &&
+            (state.prevToken == ";" || state.prevToken == null ||
+             state.prevToken == "}") &&
+            cppLooksLikeConstructor(stream.current()))
+          return "def";
+      }
+    },
+    namespaceSeparator: "::",
+    modeProps: {fold: ["brace", "include"]}
+  });
+
+  def("text/x-java", {
+    name: "clike",
+    keywords: words("abstract assert break case catch class const continue default " +
+                    "do else enum extends final finally float for goto if implements import " +
+                    "instanceof interface native new package private protected public " +
+                    "return static strictfp super switch synchronized this throw throws transient " +
+                    "try volatile while @interface"),
+    types: words("byte short int long float double boolean char void Boolean Byte Character Double Float " +
+                 "Integer Long Number Object Short String StringBuffer StringBuilder Void"),
+    blockKeywords: words("catch class do else finally for if switch try while"),
+    defKeywords: words("class interface package enum @interface"),
+    typeFirstDefinitions: true,
+    atoms: words("true false null"),
+    number: /^(?:0x[a-f\d_]+|0b[01_]+|(?:[\d_]+\.?\d*|\.\d+)(?:e[-+]?[\d_]+)?)(u|ll?|l|f)?/i,
+    hooks: {
+      "@": function(stream) {
+        // Don't match the @interface keyword.
+        if (stream.match('interface', false)) return false;
+
+        stream.eatWhile(/[\w\$_]/);
+        return "meta";
+      }
+    },
+    modeProps: {fold: ["brace", "import"]}
+  });
+
+  def("text/x-csharp", {
+    name: "clike",
+    keywords: words("abstract as async await base break case catch checked class const continue" +
+                    " default delegate do else enum event explicit extern finally fixed for" +
+                    " foreach goto if implicit in interface internal is lock namespace new" +
+                    " operator out override params private protected public readonly ref return sealed" +
+                    " sizeof stackalloc static struct switch this throw try typeof unchecked" +
+                    " unsafe using virtual void volatile while add alias ascending descending dynamic from get" +
+                    " global group into join let orderby partial remove select set value var yield"),
+    types: words("Action Boolean Byte Char DateTime DateTimeOffset Decimal Double Func" +
+                 " Guid Int16 Int32 Int64 Object SByte Single String Task TimeSpan UInt16 UInt32" +
+                 " UInt64 bool byte char decimal double short int long object"  +
+                 " sbyte float string ushort uint ulong"),
+    blockKeywords: words("catch class do else finally for foreach if struct switch try while"),
+    defKeywords: words("class interface namespace struct var"),
+    typeFirstDefinitions: true,
+    atoms: words("true false null"),
+    hooks: {
+      "@": function(stream, state) {
+        if (stream.eat('"')) {
+          state.tokenize = tokenAtString;
+          return tokenAtString(stream, state);
+        }
+        stream.eatWhile(/[\w\$_]/);
+        return "meta";
+      }
+    }
+  });
+
+  function tokenTripleString(stream, state) {
+    var escaped = false;
+    while (!stream.eol()) {
+      if (!escaped && stream.match('"""')) {
+        state.tokenize = null;
+        break;
+      }
+      escaped = stream.next() == "\\" && !escaped;
+    }
+    return "string";
+  }
+
+  def("text/x-scala", {
+    name: "clike",
+    keywords: words(
+
+      /* scala */
+      "abstract case catch class def do else extends final finally for forSome if " +
+      "implicit import lazy match new null object override package private protected return " +
+      "sealed super this throw trait try type val var while with yield _ " +
+
+      /* package scala */
+      "assert assume require print println printf readLine readBoolean readByte readShort " +
+      "readChar readInt readLong readFloat readDouble"
+    ),
+    types: words(
+      "AnyVal App Application Array BufferedIterator BigDecimal BigInt Char Console Either " +
+      "Enumeration Equiv Error Exception Fractional Function IndexedSeq Int Integral Iterable " +
+      "Iterator List Map Numeric Nil NotNull Option Ordered Ordering PartialFunction PartialOrdering " +
+      "Product Proxy Range Responder Seq Serializable Set Specializable Stream StringBuilder " +
+      "StringContext Symbol Throwable Traversable TraversableOnce Tuple Unit Vector " +
+
+      /* package java.lang */
+      "Boolean Byte Character CharSequence Class ClassLoader Cloneable Comparable " +
+      "Compiler Double Exception Float Integer Long Math Number Object Package Pair Process " +
+      "Runtime Runnable SecurityManager Short StackTraceElement StrictMath String " +
+      "StringBuffer System Thread ThreadGroup ThreadLocal Throwable Triple Void"
+    ),
+    multiLineStrings: true,
+    blockKeywords: words("catch class do else finally for forSome if match switch try while"),
+    defKeywords: words("class def object package trait type val var"),
+    atoms: words("true false null"),
+    indentStatements: false,
+    indentSwitch: false,
+    isOperatorChar: /[+\-*&%=<>!?|\/#:@]/,
+    hooks: {
+      "@": function(stream) {
+        stream.eatWhile(/[\w\$_]/);
+        return "meta";
+      },
+      '"': function(stream, state) {
+        if (!stream.match('""')) return false;
+        state.tokenize = tokenTripleString;
+        return state.tokenize(stream, state);
+      },
+      "'": function(stream) {
+        stream.eatWhile(/[\w\$_\xa1-\uffff]/);
+        return "atom";
+      },
+      "=": function(stream, state) {
+        var cx = state.context
+        if (cx.type == "}" && cx.align && stream.eat(">")) {
+          state.context = new Context(cx.indented, cx.column, cx.type, cx.info, null, cx.prev)
+          return "operator"
+        } else {
+          return false
+        }
+      }
+    },
+    modeProps: {closeBrackets: {triples: '"'}}
+  });
+
+  function tokenKotlinString(tripleString){
+    return function (stream, state) {
+      var escaped = false, next, end = false;
+      while (!stream.eol()) {
+        if (!tripleString && !escaped && stream.match('"') ) {end = true; break;}
+        if (tripleString && stream.match('"""')) {end = true; break;}
+        next = stream.next();
+        if(!escaped && next == "$" && stream.match('{'))
+          stream.skipTo("}");
+        escaped = !escaped && next == "\\" && !tripleString;
+      }
+      if (end || !tripleString)
+        state.tokenize = null;
+      return "string";
+    }
+  }
+
+  def("text/x-kotlin", {
+    name: "clike",
+    keywords: words(
+      /*keywords*/
+      "package as typealias class interface this super val " +
+      "var fun for is in This throw return " +
+      "break continue object if else while do try when !in !is as? " +
+
+      /*soft keywords*/
+      "file import where by get set abstract enum open inner override private public internal " +
+      "protected catch finally out final vararg reified dynamic companion constructor init " +
+      "sealed field property receiver param sparam lateinit data inline noinline tailrec " +
+      "external annotation crossinline const operator infix suspend"
+    ),
+    types: words(
+      /* package java.lang */
+      "Boolean Byte Character CharSequence Class ClassLoader Cloneable Comparable " +
+      "Compiler Double Exception Float Integer Long Math Number Object Package Pair Process " +
+      "Runtime Runnable SecurityManager Short StackTraceElement StrictMath String " +
+      "StringBuffer System Thread ThreadGroup ThreadLocal Throwable Triple Void"
+    ),
+    intendSwitch: false,
+    indentStatements: false,
+    multiLineStrings: true,
+    number: /^(?:0x[a-f\d_]+|0b[01_]+|(?:[\d_]+\.?\d*|\.\d+)(?:e[-+]?[\d_]+)?)(u|ll?|l|f)?/i,
+    blockKeywords: words("catch class do else finally for if where try while enum"),
+    defKeywords: words("class val var object package interface fun"),
+    atoms: words("true false null this"),
+    hooks: {
+      '"': function(stream, state) {
+        state.tokenize = tokenKotlinString(stream.match('""'));
+        return state.tokenize(stream, state);
+      }
+    },
+    modeProps: {closeBrackets: {triples: '"'}}
+  });
+
+  def(["x-shader/x-vertex", "x-shader/x-fragment"], {
+    name: "clike",
+    keywords: words("sampler1D sampler2D sampler3D samplerCube " +
+                    "sampler1DShadow sampler2DShadow " +
+                    "const attribute uniform varying " +
+                    "break continue discard return " +
+                    "for while do if else struct " +
+                    "in out inout"),
+    types: words("float int bool void " +
+                 "vec2 vec3 vec4 ivec2 ivec3 ivec4 bvec2 bvec3 bvec4 " +
+                 "mat2 mat3 mat4"),
+    blockKeywords: words("for while do if else struct"),
+    builtin: words("radians degrees sin cos tan asin acos atan " +
+                    "pow exp log exp2 sqrt inversesqrt " +
+                    "abs sign floor ceil fract mod min max clamp mix step smoothstep " +
+                    "length distance dot cross normalize ftransform faceforward " +
+                    "reflect refract matrixCompMult " +
+                    "lessThan lessThanEqual greaterThan greaterThanEqual " +
+                    "equal notEqual any all not " +
+                    "texture1D texture1DProj texture1DLod texture1DProjLod " +
+                    "texture2D texture2DProj texture2DLod texture2DProjLod " +
+                    "texture3D texture3DProj texture3DLod texture3DProjLod " +
+                    "textureCube textureCubeLod " +
+                    "shadow1D shadow2D shadow1DProj shadow2DProj " +
+                    "shadow1DLod shadow2DLod shadow1DProjLod shadow2DProjLod " +
+                    "dFdx dFdy fwidth " +
+                    "noise1 noise2 noise3 noise4"),
+    atoms: words("true false " +
+                "gl_FragColor gl_SecondaryColor gl_Normal gl_Vertex " +
+                "gl_MultiTexCoord0 gl_MultiTexCoord1 gl_MultiTexCoord2 gl_MultiTexCoord3 " +
+                "gl_MultiTexCoord4 gl_MultiTexCoord5 gl_MultiTexCoord6 gl_MultiTexCoord7 " +
+                "gl_FogCoord gl_PointCoord " +
+                "gl_Position gl_PointSize gl_ClipVertex " +
+                "gl_FrontColor gl_BackColor gl_FrontSecondaryColor gl_BackSecondaryColor " +
+                "gl_TexCoord gl_FogFragCoord " +
+                "gl_FragCoord gl_FrontFacing " +
+                "gl_FragData gl_FragDepth " +
+                "gl_ModelViewMatrix gl_ProjectionMatrix gl_ModelViewProjectionMatrix " +
+                "gl_TextureMatrix gl_NormalMatrix gl_ModelViewMatrixInverse " +
+                "gl_ProjectionMatrixInverse gl_ModelViewProjectionMatrixInverse " +
+                "gl_TexureMatrixTranspose gl_ModelViewMatrixInverseTranspose " +
+                "gl_ProjectionMatrixInverseTranspose " +
+                "gl_ModelViewProjectionMatrixInverseTranspose " +
+                "gl_TextureMatrixInverseTranspose " +
+                "gl_NormalScale gl_DepthRange gl_ClipPlane " +
+                "gl_Point gl_FrontMaterial gl_BackMaterial gl_LightSource gl_LightModel " +
+                "gl_FrontLightModelProduct gl_BackLightModelProduct " +
+                "gl_TextureColor gl_EyePlaneS gl_EyePlaneT gl_EyePlaneR gl_EyePlaneQ " +
+                "gl_FogParameters " +
+                "gl_MaxLights gl_MaxClipPlanes gl_MaxTextureUnits gl_MaxTextureCoords " +
+                "gl_MaxVertexAttribs gl_MaxVertexUniformComponents gl_MaxVaryingFloats " +
+                "gl_MaxVertexTextureImageUnits gl_MaxTextureImageUnits " +
+                "gl_MaxFragmentUniformComponents gl_MaxCombineTextureImageUnits " +
+                "gl_MaxDrawBuffers"),
+    indentSwitch: false,
+    hooks: {"#": cppHook},
+    modeProps: {fold: ["brace", "include"]}
+  });
+
+  def("text/x-nesc", {
+    name: "clike",
+    keywords: words(cKeywords + "as atomic async call command component components configuration event generic " +
+                    "implementation includes interface module new norace nx_struct nx_union post provides " +
+                    "signal task uses abstract extends"),
+    types: words(cTypes),
+    blockKeywords: words("case do else for if switch while struct"),
+    atoms: words("null true false"),
+    hooks: {"#": cppHook},
+    modeProps: {fold: ["brace", "include"]}
+  });
+
+  def("text/x-objectivec", {
+    name: "clike",
+    keywords: words(cKeywords + "inline restrict _Bool _Complex _Imaginary BOOL Class bycopy byref id IMP in " +
+                    "inout nil oneway out Protocol SEL self super atomic nonatomic retain copy readwrite readonly"),
+    types: words(cTypes),
+    atoms: words("YES NO NULL NILL ON OFF true false"),
+    hooks: {
+      "@": function(stream) {
+        stream.eatWhile(/[\w\$]/);
+        return "keyword";
+      },
+      "#": cppHook,
+      indent: function(_state, ctx, textAfter) {
+        if (ctx.type == "statement" && /^@\w/.test(textAfter)) return ctx.indented
+      }
+    },
+    modeProps: {fold: "brace"}
+  });
+
+  def("text/x-squirrel", {
+    name: "clike",
+    keywords: words("base break clone continue const default delete enum extends function in class" +
+                    " foreach local resume return this throw typeof yield constructor instanceof static"),
+    types: words(cTypes),
+    blockKeywords: words("case catch class else for foreach if switch try while"),
+    defKeywords: words("function local class"),
+    typeFirstDefinitions: true,
+    atoms: words("true false null"),
+    hooks: {"#": cppHook},
+    modeProps: {fold: ["brace", "include"]}
+  });
+
+  // Ceylon Strings need to deal with interpolation
+  var stringTokenizer = null;
+  function tokenCeylonString(type) {
+    return function(stream, state) {
+      var escaped = false, next, end = false;
+      while (!stream.eol()) {
+        if (!escaped && stream.match('"') &&
+              (type == "single" || stream.match('""'))) {
+          end = true;
+          break;
+        }
+        if (!escaped && stream.match('``')) {
+          stringTokenizer = tokenCeylonString(type);
+          end = true;
+          break;
+        }
+        next = stream.next();
+        escaped = type == "single" && !escaped && next == "\\";
+      }
+      if (end)
+          state.tokenize = null;
+      return "string";
+    }
+  }
+
+  def("text/x-ceylon", {
+    name: "clike",
+    keywords: words("abstracts alias assembly assert assign break case catch class continue dynamic else" +
+                    " exists extends finally for function given if import in interface is let module new" +
+                    " nonempty object of out outer package return satisfies super switch then this throw" +
+                    " try value void while"),
+    types: function(word) {
+        // In Ceylon all identifiers that start with an uppercase are types
+        var first = word.charAt(0);
+        return (first === first.toUpperCase() && first !== first.toLowerCase());
+    },
+    blockKeywords: words("case catch class dynamic else finally for function if interface module new object switch try while"),
+    defKeywords: words("class dynamic function interface module object package value"),
+    builtin: words("abstract actual aliased annotation by default deprecated doc final formal late license" +
+                   " native optional sealed see serializable shared suppressWarnings tagged throws variable"),
+    isPunctuationChar: /[\[\]{}\(\),;\:\.`]/,
+    isOperatorChar: /[+\-*&%=<>!?|^~:\/]/,
+    numberStart: /[\d#$]/,
+    number: /^(?:#[\da-fA-F_]+|\$[01_]+|[\d_]+[kMGTPmunpf]?|[\d_]+\.[\d_]+(?:[eE][-+]?\d+|[kMGTPmunpf]|)|)/i,
+    multiLineStrings: true,
+    typeFirstDefinitions: true,
+    atoms: words("true false null larger smaller equal empty finished"),
+    indentSwitch: false,
+    styleDefs: false,
+    hooks: {
+      "@": function(stream) {
+        stream.eatWhile(/[\w\$_]/);
+        return "meta";
+      },
+      '"': function(stream, state) {
+          state.tokenize = tokenCeylonString(stream.match('""') ? "triple" : "single");
+          return state.tokenize(stream, state);
+        },
+      '`': function(stream, state) {
+          if (!stringTokenizer || !stream.match('`')) return false;
+          state.tokenize = stringTokenizer;
+          stringTokenizer = null;
+          return state.tokenize(stream, state);
+        },
+      "'": function(stream) {
+        stream.eatWhile(/[\w\$_\xa1-\uffff]/);
+        return "atom";
+      },
+      token: function(_stream, state, style) {
+          if ((style == "variable" || style == "variable-3") &&
+              state.prevToken == ".") {
+            return "variable-2";
+          }
+        }
+    },
+    modeProps: {
+        fold: ["brace", "import"],
+        closeBrackets: {triples: '"'}
+    }
+  });
+
+});
diff --git a/public/codemirror/mode/clike/index.html b/public/codemirror/mode/clike/index.html
new file mode 100644
index 000000000..45c670ae5
--- /dev/null
+++ b/public/codemirror/mode/clike/index.html
@@ -0,0 +1,360 @@
+
+
+CodeMirror: C-like mode
+
+
+
+
+
+
+
+
+
+
+
+
+

+
C-like mode

+
+

+
+
C++ example

+
+

+
+
Objective-C example

+
+

+
+
Java example

+
+

+
+
Scala example

+
+

+
+
Kotlin mode

+
+

+
+
Ceylon mode

+
+

+
+    
+
+    
Simple mode that tries to handle C-like languages as well as it
+    can. Takes two configuration parameters: keywords, an
+    object whose property names are the keywords in the language,
+    and useCPP, which determines whether C preprocessor
+    directives are recognized.

+
+    
MIME types defined: text/x-csrc
+    (C), text/x-c++src (C++), text/x-java
+    (Java), text/x-csharp (C#),
+    text/x-objectivec (Objective-C),
+    text/x-scala (Scala), text/x-vertex
+    x-shader/x-fragment (shader programs),
+    text/x-squirrel (Squirrel) and
+    text/x-ceylon (Ceylon)

+

diff --git a/public/codemirror/mode/clike/scala.html b/public/codemirror/mode/clike/scala.html
new file mode 100644
index 000000000..aa04cf0f0
--- /dev/null
+++ b/public/codemirror/mode/clike/scala.html
@@ -0,0 +1,767 @@
+
+
+CodeMirror: Scala mode
+
+
+
+
+
+
+
+
+
+
+

+
Scala mode

+

+
+

+
+    
+  

diff --git a/public/codemirror/mode/clike/test.js b/public/codemirror/mode/clike/test.js
new file mode 100644
index 000000000..bea85b869
--- /dev/null
+++ b/public/codemirror/mode/clike/test.js
@@ -0,0 +1,55 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({indentUnit: 2}, "text/x-c");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)); }
+
+  MT("indent",
+     "[variable-3 void] [def foo]([variable-3 void*] [variable a], [variable-3 int] [variable b]) {",
+     "  [variable-3 int] [variable c] [operator =] [variable b] [operator +]",
+     "    [number 1];",
+     "  [keyword return] [operator *][variable a];",
+     "}");
+
+  MT("indent_switch",
+     "[keyword switch] ([variable x]) {",
+     "  [keyword case] [number 10]:",
+     "    [keyword return] [number 20];",
+     "  [keyword default]:",
+     "    [variable printf]([string \"foo %c\"], [variable x]);",
+     "}");
+
+  MT("def",
+     "[variable-3 void] [def foo]() {}",
+     "[keyword struct] [def bar]{}",
+     "[variable-3 int] [variable-3 *][def baz]() {}");
+
+  MT("def_new_line",
+     "::[variable std]::[variable SomeTerribleType][operator <][variable T][operator >]",
+     "[def SomeLongMethodNameThatDoesntFitIntoOneLine]([keyword const] [variable MyType][operator &] [variable param]) {}")
+
+  MT("double_block",
+     "[keyword for] (;;)",
+     "  [keyword for] (;;)",
+     "    [variable x][operator ++];",
+     "[keyword return];");
+
+  MT("preprocessor",
+     "[meta #define FOO 3]",
+     "[variable-3 int] [variable foo];",
+     "[meta #define BAR\\]",
+     "[meta 4]",
+     "[variable-3 unsigned] [variable-3 int] [variable bar] [operator =] [number 8];",
+     "[meta #include  ][comment // comment]")
+
+
+  var mode_cpp = CodeMirror.getMode({indentUnit: 2}, "text/x-c++src");
+  function MTCPP(name) { test.mode(name, mode_cpp, Array.prototype.slice.call(arguments, 1)); }
+
+  MTCPP("cpp14_literal",
+    "[number 10'000];",
+    "[number 0b10'000];",
+    "[number 0x10'000];",
+    "[string '100000'];");
+})();
diff --git a/public/codemirror/mode/clojure/clojure.js b/public/codemirror/mode/clojure/clojure.js
new file mode 100644
index 000000000..ed6af2c83
--- /dev/null
+++ b/public/codemirror/mode/clojure/clojure.js
@@ -0,0 +1,306 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+/**
+ * Author: Hans Engel
+ * Branched from CodeMirror's Scheme mode (by Koh Zi Han, based on implementation by Koh Zi Chun)
+ */
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("clojure", function (options) {
+    var BUILTIN = "builtin", COMMENT = "comment", STRING = "string", CHARACTER = "string-2",
+        ATOM = "atom", NUMBER = "number", BRACKET = "bracket", KEYWORD = "keyword", VAR = "variable";
+    var INDENT_WORD_SKIP = options.indentUnit || 2;
+    var NORMAL_INDENT_UNIT = options.indentUnit || 2;
+
+    function makeKeywords(str) {
+        var obj = {}, words = str.split(" ");
+        for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+        return obj;
+    }
+
+    var atoms = makeKeywords("true false nil");
+
+    var keywords = makeKeywords(
+      "defn defn- def def- defonce defmulti defmethod defmacro defstruct deftype defprotocol defrecord defproject deftest " +
+      "slice defalias defhinted defmacro- defn-memo defnk defnk defonce- defunbound defunbound- defvar defvar- let letfn " +
+      "do case cond condp for loop recur when when-not when-let when-first if if-let if-not . .. -> ->> doto and or dosync " +
+      "doseq dotimes dorun doall load import unimport ns in-ns refer try catch finally throw with-open with-local-vars " +
+      "binding gen-class gen-and-load-class gen-and-save-class handler-case handle");
+
+    var builtins = makeKeywords(
+        "* *' *1 *2 *3 *agent* *allow-unresolved-vars* *assert* *clojure-version* *command-line-args* *compile-files* " +
+        "*compile-path* *compiler-options* *data-readers* *e *err* *file* *flush-on-newline* *fn-loader* *in* " +
+        "*math-context* *ns* *out* *print-dup* *print-length* *print-level* *print-meta* *print-readably* *read-eval* " +
+        "*source-path* *unchecked-math* *use-context-classloader* *verbose-defrecords* *warn-on-reflection* + +' - -' -> " +
+        "->> ->ArrayChunk ->Vec ->VecNode ->VecSeq -cache-protocol-fn -reset-methods .. / < <= = == > >= EMPTY-NODE accessor " +
+        "aclone add-classpath add-watch agent agent-error agent-errors aget alength alias all-ns alter alter-meta! " +
+        "alter-var-root amap ancestors and apply areduce array-map aset aset-boolean aset-byte aset-char aset-double " +
+        "aset-float aset-int aset-long aset-short assert assoc assoc! assoc-in associative? atom await await-for await1 " +
+        "bases bean bigdec bigint biginteger binding bit-and bit-and-not bit-clear bit-flip bit-not bit-or bit-set " +
+        "bit-shift-left bit-shift-right bit-test bit-xor boolean boolean-array booleans bound-fn bound-fn* bound? butlast " +
+        "byte byte-array bytes case cat cast char char-array char-escape-string char-name-string char? chars chunk chunk-append " +
+        "chunk-buffer chunk-cons chunk-first chunk-next chunk-rest chunked-seq? class class? clear-agent-errors " +
+        "clojure-version coll? comment commute comp comparator compare compare-and-set! compile complement completing concat cond condp " +
+        "conj conj! cons constantly construct-proxy contains? count counted? create-ns create-struct cycle dec dec' decimal? " +
+        "declare dedupe default-data-readers definline definterface defmacro defmethod defmulti defn defn- defonce defprotocol " +
+        "defrecord defstruct deftype delay delay? deliver denominator deref derive descendants destructure disj disj! dissoc " +
+        "dissoc! distinct distinct? doall dorun doseq dosync dotimes doto double double-array doubles drop drop-last " +
+        "drop-while eduction empty empty? ensure enumeration-seq error-handler error-mode eval even? every-pred every? ex-data ex-info " +
+        "extend extend-protocol extend-type extenders extends? false? ffirst file-seq filter filterv find find-keyword " +
+        "find-ns find-protocol-impl find-protocol-method find-var first flatten float float-array float? floats flush fn fn? " +
+        "fnext fnil for force format frequencies future future-call future-cancel future-cancelled? future-done? future? " +
+        "gen-class gen-interface gensym get get-in get-method get-proxy-class get-thread-bindings get-validator group-by hash " +
+        "hash-combine hash-map hash-set identical? identity if-let if-not ifn? import in-ns inc inc' init-proxy instance? " +
+        "int int-array integer? interleave intern interpose into into-array ints io! isa? iterate iterator-seq juxt keep " +
+        "keep-indexed key keys keyword keyword? last lazy-cat lazy-seq let letfn line-seq list list* list? load load-file " +
+        "load-reader load-string loaded-libs locking long long-array longs loop macroexpand macroexpand-1 make-array " +
+        "make-hierarchy map map-indexed map? mapcat mapv max max-key memfn memoize merge merge-with meta method-sig methods " +
+        "min min-key mod munge name namespace namespace-munge neg? newline next nfirst nil? nnext not not-any? not-empty " +
+        "not-every? not= ns ns-aliases ns-imports ns-interns ns-map ns-name ns-publics ns-refers ns-resolve ns-unalias " +
+        "ns-unmap nth nthnext nthrest num number? numerator object-array odd? or parents partial partition partition-all " +
+        "partition-by pcalls peek persistent! pmap pop pop! pop-thread-bindings pos? pr pr-str prefer-method prefers " +
+        "primitives-classnames print print-ctor print-dup print-method print-simple print-str printf println println-str " +
+        "prn prn-str promise proxy proxy-call-with-super proxy-mappings proxy-name proxy-super push-thread-bindings pvalues " +
+        "quot rand rand-int rand-nth random-sample range ratio? rational? rationalize re-find re-groups re-matcher re-matches re-pattern " +
+        "re-seq read read-line read-string realized? reduce reduce-kv reductions ref ref-history-count ref-max-history " +
+        "ref-min-history ref-set refer refer-clojure reify release-pending-sends rem remove remove-all-methods " +
+        "remove-method remove-ns remove-watch repeat repeatedly replace replicate require reset! reset-meta! resolve rest " +
+        "restart-agent resultset-seq reverse reversible? rseq rsubseq satisfies? second select-keys send send-off seq seq? " +
+        "seque sequence sequential? set set-error-handler! set-error-mode! set-validator! set? short short-array shorts " +
+        "shuffle shutdown-agents slurp some some-fn sort sort-by sorted-map sorted-map-by sorted-set sorted-set-by sorted? " +
+        "special-symbol? spit split-at split-with str string? struct struct-map subs subseq subvec supers swap! symbol " +
+        "symbol? sync take take-last take-nth take-while test the-ns thread-bound? time to-array to-array-2d trampoline transduce " +
+        "transient tree-seq true? type unchecked-add unchecked-add-int unchecked-byte unchecked-char unchecked-dec " +
+        "unchecked-dec-int unchecked-divide-int unchecked-double unchecked-float unchecked-inc unchecked-inc-int " +
+        "unchecked-int unchecked-long unchecked-multiply unchecked-multiply-int unchecked-negate unchecked-negate-int "+
+        "unchecked-remainder-int unchecked-short unchecked-subtract unchecked-subtract-int underive unquote " +
+        "unquote-splicing update update-in update-proxy use val vals var-get var-set var? vary-meta vec vector vector-of " +
+        "vector? volatile! volatile? vreset! vswap! when when-first when-let when-not while with-bindings with-bindings* with-in-str with-loading-context " +
+        "with-local-vars with-meta with-open with-out-str with-precision with-redefs with-redefs-fn xml-seq zero? zipmap " +
+        "*default-data-reader-fn* as-> cond-> cond->> reduced reduced? send-via set-agent-send-executor! " +
+        "set-agent-send-off-executor! some-> some->>");
+
+    var indentKeys = makeKeywords(
+        // Built-ins
+        "ns fn def defn defmethod bound-fn if if-not case condp when while when-not when-first do future comment doto " +
+        "locking proxy with-open with-precision reify deftype defrecord defprotocol extend extend-protocol extend-type " +
+        "try catch " +
+
+        // Binding forms
+        "let letfn binding loop for doseq dotimes when-let if-let " +
+
+        // Data structures
+        "defstruct struct-map assoc " +
+
+        // clojure.test
+        "testing deftest " +
+
+        // contrib
+        "handler-case handle dotrace deftrace");
+
+    var tests = {
+        digit: /\d/,
+        digit_or_colon: /[\d:]/,
+        hex: /[0-9a-f]/i,
+        sign: /[+-]/,
+        exponent: /e/i,
+        keyword_char: /[^\s\(\[\;\)\]]/,
+        symbol: /[\w*+!\-\._?:<>\/\xa1-\uffff]/,
+        block_indent: /^(?:def|with)[^\/]+$|\/(?:def|with)/
+    };
+
+    function stateStack(indent, type, prev) { // represents a state stack object
+        this.indent = indent;
+        this.type = type;
+        this.prev = prev;
+    }
+
+    function pushStack(state, indent, type) {
+        state.indentStack = new stateStack(indent, type, state.indentStack);
+    }
+
+    function popStack(state) {
+        state.indentStack = state.indentStack.prev;
+    }
+
+    function isNumber(ch, stream){
+        // hex
+        if ( ch === '0' && stream.eat(/x/i) ) {
+            stream.eatWhile(tests.hex);
+            return true;
+        }
+
+        // leading sign
+        if ( ( ch == '+' || ch == '-' ) && ( tests.digit.test(stream.peek()) ) ) {
+          stream.eat(tests.sign);
+          ch = stream.next();
+        }
+
+        if ( tests.digit.test(ch) ) {
+            stream.eat(ch);
+            stream.eatWhile(tests.digit);
+
+            if ( '.' == stream.peek() ) {
+                stream.eat('.');
+                stream.eatWhile(tests.digit);
+            } else if ('/' == stream.peek() ) {
+                stream.eat('/');
+                stream.eatWhile(tests.digit);
+            }
+
+            if ( stream.eat(tests.exponent) ) {
+                stream.eat(tests.sign);
+                stream.eatWhile(tests.digit);
+            }
+
+            return true;
+        }
+
+        return false;
+    }
+
+    // Eat character that starts after backslash \
+    function eatCharacter(stream) {
+        var first = stream.next();
+        // Read special literals: backspace, newline, space, return.
+        // Just read all lowercase letters.
+        if (first && first.match(/[a-z]/) && stream.match(/[a-z]+/, true)) {
+            return;
+        }
+        // Read unicode character: \u1000 \uA0a1
+        if (first === "u") {
+            stream.match(/[0-9a-z]{4}/i, true);
+        }
+    }
+
+    return {
+        startState: function () {
+            return {
+                indentStack: null,
+                indentation: 0,
+                mode: false
+            };
+        },
+
+        token: function (stream, state) {
+            if (state.indentStack == null && stream.sol()) {
+                // update indentation, but only if indentStack is empty
+                state.indentation = stream.indentation();
+            }
+
+            // skip spaces
+            if (state.mode != "string" && stream.eatSpace()) {
+                return null;
+            }
+            var returnType = null;
+
+            switch(state.mode){
+                case "string": // multi-line string parsing mode
+                    var next, escaped = false;
+                    while ((next = stream.next()) != null) {
+                        if (next == "\"" && !escaped) {
+
+                            state.mode = false;
+                            break;
+                        }
+                        escaped = !escaped && next == "\\";
+                    }
+                    returnType = STRING; // continue on in string mode
+                    break;
+                default: // default parsing mode
+                    var ch = stream.next();
+
+                    if (ch == "\"") {
+                        state.mode = "string";
+                        returnType = STRING;
+                    } else if (ch == "\\") {
+                        eatCharacter(stream);
+                        returnType = CHARACTER;
+                    } else if (ch == "'" && !( tests.digit_or_colon.test(stream.peek()) )) {
+                        returnType = ATOM;
+                    } else if (ch == ";") { // comment
+                        stream.skipToEnd(); // rest of the line is a comment
+                        returnType = COMMENT;
+                    } else if (isNumber(ch,stream)){
+                        returnType = NUMBER;
+                    } else if (ch == "(" || ch == "[" || ch == "{" ) {
+                        var keyWord = '', indentTemp = stream.column(), letter;
+                        /**
+                        Either
+                        (indent-word ..
+                        (non-indent-word ..
+                        (;something else, bracket, etc.
+                        */
+
+                        if (ch == "(") while ((letter = stream.eat(tests.keyword_char)) != null) {
+                            keyWord += letter;
+                        }
+
+                        if (keyWord.length > 0 && (indentKeys.propertyIsEnumerable(keyWord) ||
+                                                   tests.block_indent.test(keyWord))) { // indent-word
+                            pushStack(state, indentTemp + INDENT_WORD_SKIP, ch);
+                        } else { // non-indent word
+                            // we continue eating the spaces
+                            stream.eatSpace();
+                            if (stream.eol() || stream.peek() == ";") {
+                                // nothing significant after
+                                // we restart indentation the user defined spaces after
+                                pushStack(state, indentTemp + NORMAL_INDENT_UNIT, ch);
+                            } else {
+                                pushStack(state, indentTemp + stream.current().length, ch); // else we match
+                            }
+                        }
+                        stream.backUp(stream.current().length - 1); // undo all the eating
+
+                        returnType = BRACKET;
+                    } else if (ch == ")" || ch == "]" || ch == "}") {
+                        returnType = BRACKET;
+                        if (state.indentStack != null && state.indentStack.type == (ch == ")" ? "(" : (ch == "]" ? "[" :"{"))) {
+                            popStack(state);
+                        }
+                    } else if ( ch == ":" ) {
+                        stream.eatWhile(tests.symbol);
+                        return ATOM;
+                    } else {
+                        stream.eatWhile(tests.symbol);
+
+                        if (keywords && keywords.propertyIsEnumerable(stream.current())) {
+                            returnType = KEYWORD;
+                        } else if (builtins && builtins.propertyIsEnumerable(stream.current())) {
+                            returnType = BUILTIN;
+                        } else if (atoms && atoms.propertyIsEnumerable(stream.current())) {
+                            returnType = ATOM;
+                        } else {
+                          returnType = VAR;
+                        }
+                    }
+            }
+
+            return returnType;
+        },
+
+        indent: function (state) {
+            if (state.indentStack == null) return state.indentation;
+            return state.indentStack.indent;
+        },
+
+        closeBrackets: {pairs: "()[]{}\"\""},
+        lineComment: ";;"
+    };
+});
+
+CodeMirror.defineMIME("text/x-clojure", "clojure");
+CodeMirror.defineMIME("text/x-clojurescript", "clojure");
+CodeMirror.defineMIME("application/edn", "clojure");
+
+});
diff --git a/public/codemirror/mode/clojure/index.html b/public/codemirror/mode/clojure/index.html
new file mode 100644
index 000000000..81294bc14
--- /dev/null
+++ b/public/codemirror/mode/clojure/index.html
@@ -0,0 +1,91 @@
+
+
+CodeMirror: Clojure mode
+
+
+
+
+
+
+
+
+
+

+
Clojure mode

+

+    
+
+    
MIME types defined: text/x-clojure.

+
+  

diff --git a/public/codemirror/mode/cmake/cmake.js b/public/codemirror/mode/cmake/cmake.js
new file mode 100644
index 000000000..9f9eda541
--- /dev/null
+++ b/public/codemirror/mode/cmake/cmake.js
@@ -0,0 +1,97 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object")
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd)
+    define(["../../lib/codemirror"], mod);
+  else
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("cmake", function () {
+  var variable_regex = /({)?[a-zA-Z0-9_]+(})?/;
+
+  function tokenString(stream, state) {
+    var current, prev, found_var = false;
+    while (!stream.eol() && (current = stream.next()) != state.pending) {
+      if (current === '$' && prev != '\\' && state.pending == '"') {
+        found_var = true;
+        break;
+      }
+      prev = current;
+    }
+    if (found_var) {
+      stream.backUp(1);
+    }
+    if (current == state.pending) {
+      state.continueString = false;
+    } else {
+      state.continueString = true;
+    }
+    return "string";
+  }
+
+  function tokenize(stream, state) {
+    var ch = stream.next();
+
+    // Have we found a variable?
+    if (ch === '$') {
+      if (stream.match(variable_regex)) {
+        return 'variable-2';
+      }
+      return 'variable';
+    }
+    // Should we still be looking for the end of a string?
+    if (state.continueString) {
+      // If so, go through the loop again
+      stream.backUp(1);
+      return tokenString(stream, state);
+    }
+    // Do we just have a function on our hands?
+    // In 'cmake_minimum_required (VERSION 2.8.8)', 'cmake_minimum_required' is matched
+    if (stream.match(/(\s+)?\w+\(/) || stream.match(/(\s+)?\w+\ \(/)) {
+      stream.backUp(1);
+      return 'def';
+    }
+    if (ch == "#") {
+      stream.skipToEnd();
+      return "comment";
+    }
+    // Have we found a string?
+    if (ch == "'" || ch == '"') {
+      // Store the type (single or double)
+      state.pending = ch;
+      // Perform the looping function to find the end
+      return tokenString(stream, state);
+    }
+    if (ch == '(' || ch == ')') {
+      return 'bracket';
+    }
+    if (ch.match(/[0-9]/)) {
+      return 'number';
+    }
+    stream.eatWhile(/[\w-]/);
+    return null;
+  }
+  return {
+    startState: function () {
+      var state = {};
+      state.inDefinition = false;
+      state.inInclude = false;
+      state.continueString = false;
+      state.pending = false;
+      return state;
+    },
+    token: function (stream, state) {
+      if (stream.eatSpace()) return null;
+      return tokenize(stream, state);
+    }
+  };
+});
+
+CodeMirror.defineMIME("text/x-cmake", "cmake");
+
+});
diff --git a/public/codemirror/mode/cmake/index.html b/public/codemirror/mode/cmake/index.html
new file mode 100644
index 000000000..ed114fece
--- /dev/null
+++ b/public/codemirror/mode/cmake/index.html
@@ -0,0 +1,129 @@
+
+
+CodeMirror: CMake mode
+
+
+
+
+
+
+
+
+
+
+

+
CMake mode

+

+    
+
+    
MIME types defined: text/x-cmake.

+
+  

diff --git a/public/codemirror/mode/cobol/cobol.js b/public/codemirror/mode/cobol/cobol.js
new file mode 100644
index 000000000..897022b18
--- /dev/null
+++ b/public/codemirror/mode/cobol/cobol.js
@@ -0,0 +1,255 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+/**
+ * Author: Gautam Mehta
+ * Branched from CodeMirror's Scheme mode
+ */
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("cobol", function () {
+  var BUILTIN = "builtin", COMMENT = "comment", STRING = "string",
+      ATOM = "atom", NUMBER = "number", KEYWORD = "keyword", MODTAG = "header",
+      COBOLLINENUM = "def", PERIOD = "link";
+  function makeKeywords(str) {
+    var obj = {}, words = str.split(" ");
+    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+    return obj;
+  }
+  var atoms = makeKeywords("TRUE FALSE ZEROES ZEROS ZERO SPACES SPACE LOW-VALUE LOW-VALUES ");
+  var keywords = makeKeywords(
+      "ACCEPT ACCESS ACQUIRE ADD ADDRESS " +
+      "ADVANCING AFTER ALIAS ALL ALPHABET " +
+      "ALPHABETIC ALPHABETIC-LOWER ALPHABETIC-UPPER ALPHANUMERIC ALPHANUMERIC-EDITED " +
+      "ALSO ALTER ALTERNATE AND ANY " +
+      "ARE AREA AREAS ARITHMETIC ASCENDING " +
+      "ASSIGN AT ATTRIBUTE AUTHOR AUTO " +
+      "AUTO-SKIP AUTOMATIC B-AND B-EXOR B-LESS " +
+      "B-NOT B-OR BACKGROUND-COLOR BACKGROUND-COLOUR BEEP " +
+      "BEFORE BELL BINARY BIT BITS " +
+      "BLANK BLINK BLOCK BOOLEAN BOTTOM " +
+      "BY CALL CANCEL CD CF " +
+      "CH CHARACTER CHARACTERS CLASS CLOCK-UNITS " +
+      "CLOSE COBOL CODE CODE-SET COL " +
+      "COLLATING COLUMN COMMA COMMIT COMMITMENT " +
+      "COMMON COMMUNICATION COMP COMP-0 COMP-1 " +
+      "COMP-2 COMP-3 COMP-4 COMP-5 COMP-6 " +
+      "COMP-7 COMP-8 COMP-9 COMPUTATIONAL COMPUTATIONAL-0 " +
+      "COMPUTATIONAL-1 COMPUTATIONAL-2 COMPUTATIONAL-3 COMPUTATIONAL-4 COMPUTATIONAL-5 " +
+      "COMPUTATIONAL-6 COMPUTATIONAL-7 COMPUTATIONAL-8 COMPUTATIONAL-9 COMPUTE " +
+      "CONFIGURATION CONNECT CONSOLE CONTAINED CONTAINS " +
+      "CONTENT CONTINUE CONTROL CONTROL-AREA CONTROLS " +
+      "CONVERTING COPY CORR CORRESPONDING COUNT " +
+      "CRT CRT-UNDER CURRENCY CURRENT CURSOR " +
+      "DATA DATE DATE-COMPILED DATE-WRITTEN DAY " +
+      "DAY-OF-WEEK DB DB-ACCESS-CONTROL-KEY DB-DATA-NAME DB-EXCEPTION " +
+      "DB-FORMAT-NAME DB-RECORD-NAME DB-SET-NAME DB-STATUS DBCS " +
+      "DBCS-EDITED DE DEBUG-CONTENTS DEBUG-ITEM DEBUG-LINE " +
+      "DEBUG-NAME DEBUG-SUB-1 DEBUG-SUB-2 DEBUG-SUB-3 DEBUGGING " +
+      "DECIMAL-POINT DECLARATIVES DEFAULT DELETE DELIMITED " +
+      "DELIMITER DEPENDING DESCENDING DESCRIBED DESTINATION " +
+      "DETAIL DISABLE DISCONNECT DISPLAY DISPLAY-1 " +
+      "DISPLAY-2 DISPLAY-3 DISPLAY-4 DISPLAY-5 DISPLAY-6 " +
+      "DISPLAY-7 DISPLAY-8 DISPLAY-9 DIVIDE DIVISION " +
+      "DOWN DROP DUPLICATE DUPLICATES DYNAMIC " +
+      "EBCDIC EGI EJECT ELSE EMI " +
+      "EMPTY EMPTY-CHECK ENABLE END END. END-ACCEPT END-ACCEPT. " +
+      "END-ADD END-CALL END-COMPUTE END-DELETE END-DISPLAY " +
+      "END-DIVIDE END-EVALUATE END-IF END-INVOKE END-MULTIPLY " +
+      "END-OF-PAGE END-PERFORM END-READ END-RECEIVE END-RETURN " +
+      "END-REWRITE END-SEARCH END-START END-STRING END-SUBTRACT " +
+      "END-UNSTRING END-WRITE END-XML ENTER ENTRY " +
+      "ENVIRONMENT EOP EQUAL EQUALS ERASE " +
+      "ERROR ESI EVALUATE EVERY EXCEEDS " +
+      "EXCEPTION EXCLUSIVE EXIT EXTEND EXTERNAL " +
+      "EXTERNALLY-DESCRIBED-KEY FD FETCH FILE FILE-CONTROL " +
+      "FILE-STREAM FILES FILLER FINAL FIND " +
+      "FINISH FIRST FOOTING FOR FOREGROUND-COLOR " +
+      "FOREGROUND-COLOUR FORMAT FREE FROM FULL " +
+      "FUNCTION GENERATE GET GIVING GLOBAL " +
+      "GO GOBACK GREATER GROUP HEADING " +
+      "HIGH-VALUE HIGH-VALUES HIGHLIGHT I-O I-O-CONTROL " +
+      "ID IDENTIFICATION IF IN INDEX " +
+      "INDEX-1 INDEX-2 INDEX-3 INDEX-4 INDEX-5 " +
+      "INDEX-6 INDEX-7 INDEX-8 INDEX-9 INDEXED " +
+      "INDIC INDICATE INDICATOR INDICATORS INITIAL " +
+      "INITIALIZE INITIATE INPUT INPUT-OUTPUT INSPECT " +
+      "INSTALLATION INTO INVALID INVOKE IS " +
+      "JUST JUSTIFIED KANJI KEEP KEY " +
+      "LABEL LAST LD LEADING LEFT " +
+      "LEFT-JUSTIFY LENGTH LENGTH-CHECK LESS LIBRARY " +
+      "LIKE LIMIT LIMITS LINAGE LINAGE-COUNTER " +
+      "LINE LINE-COUNTER LINES LINKAGE LOCAL-STORAGE " +
+      "LOCALE LOCALLY LOCK " +
+      "MEMBER MEMORY MERGE MESSAGE METACLASS " +
+      "MODE MODIFIED MODIFY MODULES MOVE " +
+      "MULTIPLE MULTIPLY NATIONAL NATIVE NEGATIVE " +
+      "NEXT NO NO-ECHO NONE NOT " +
+      "NULL NULL-KEY-MAP NULL-MAP NULLS NUMBER " +
+      "NUMERIC NUMERIC-EDITED OBJECT OBJECT-COMPUTER OCCURS " +
+      "OF OFF OMITTED ON ONLY " +
+      "OPEN OPTIONAL OR ORDER ORGANIZATION " +
+      "OTHER OUTPUT OVERFLOW OWNER PACKED-DECIMAL " +
+      "PADDING PAGE PAGE-COUNTER PARSE PERFORM " +
+      "PF PH PIC PICTURE PLUS " +
+      "POINTER POSITION POSITIVE PREFIX PRESENT " +
+      "PRINTING PRIOR PROCEDURE PROCEDURE-POINTER PROCEDURES " +
+      "PROCEED PROCESS PROCESSING PROGRAM PROGRAM-ID " +
+      "PROMPT PROTECTED PURGE QUEUE QUOTE " +
+      "QUOTES RANDOM RD READ READY " +
+      "REALM RECEIVE RECONNECT RECORD RECORD-NAME " +
+      "RECORDS RECURSIVE REDEFINES REEL REFERENCE " +
+      "REFERENCE-MONITOR REFERENCES RELATION RELATIVE RELEASE " +
+      "REMAINDER REMOVAL RENAMES REPEATED REPLACE " +
+      "REPLACING REPORT REPORTING REPORTS REPOSITORY " +
+      "REQUIRED RERUN RESERVE RESET RETAINING " +
+      "RETRIEVAL RETURN RETURN-CODE RETURNING REVERSE-VIDEO " +
+      "REVERSED REWIND REWRITE RF RH " +
+      "RIGHT RIGHT-JUSTIFY ROLLBACK ROLLING ROUNDED " +
+      "RUN SAME SCREEN SD SEARCH " +
+      "SECTION SECURE SECURITY SEGMENT SEGMENT-LIMIT " +
+      "SELECT SEND SENTENCE SEPARATE SEQUENCE " +
+      "SEQUENTIAL SET SHARED SIGN SIZE " +
+      "SKIP1 SKIP2 SKIP3 SORT SORT-MERGE " +
+      "SORT-RETURN SOURCE SOURCE-COMPUTER SPACE-FILL " +
+      "SPECIAL-NAMES STANDARD STANDARD-1 STANDARD-2 " +
+      "START STARTING STATUS STOP STORE " +
+      "STRING SUB-QUEUE-1 SUB-QUEUE-2 SUB-QUEUE-3 SUB-SCHEMA " +
+      "SUBFILE SUBSTITUTE SUBTRACT SUM SUPPRESS " +
+      "SYMBOLIC SYNC SYNCHRONIZED SYSIN SYSOUT " +
+      "TABLE TALLYING TAPE TENANT TERMINAL " +
+      "TERMINATE TEST TEXT THAN THEN " +
+      "THROUGH THRU TIME TIMES TITLE " +
+      "TO TOP TRAILING TRAILING-SIGN TRANSACTION " +
+      "TYPE TYPEDEF UNDERLINE UNEQUAL UNIT " +
+      "UNSTRING UNTIL UP UPDATE UPON " +
+      "USAGE USAGE-MODE USE USING VALID " +
+      "VALIDATE VALUE VALUES VARYING VLR " +
+      "WAIT WHEN WHEN-COMPILED WITH WITHIN " +
+      "WORDS WORKING-STORAGE WRITE XML XML-CODE " +
+      "XML-EVENT XML-NTEXT XML-TEXT ZERO ZERO-FILL " );
+
+  var builtins = makeKeywords("- * ** / + < <= = > >= ");
+  var tests = {
+    digit: /\d/,
+    digit_or_colon: /[\d:]/,
+    hex: /[0-9a-f]/i,
+    sign: /[+-]/,
+    exponent: /e/i,
+    keyword_char: /[^\s\(\[\;\)\]]/,
+    symbol: /[\w*+\-]/
+  };
+  function isNumber(ch, stream){
+    // hex
+    if ( ch === '0' && stream.eat(/x/i) ) {
+      stream.eatWhile(tests.hex);
+      return true;
+    }
+    // leading sign
+    if ( ( ch == '+' || ch == '-' ) && ( tests.digit.test(stream.peek()) ) ) {
+      stream.eat(tests.sign);
+      ch = stream.next();
+    }
+    if ( tests.digit.test(ch) ) {
+      stream.eat(ch);
+      stream.eatWhile(tests.digit);
+      if ( '.' == stream.peek()) {
+        stream.eat('.');
+        stream.eatWhile(tests.digit);
+      }
+      if ( stream.eat(tests.exponent) ) {
+        stream.eat(tests.sign);
+        stream.eatWhile(tests.digit);
+      }
+      return true;
+    }
+    return false;
+  }
+  return {
+    startState: function () {
+      return {
+        indentStack: null,
+        indentation: 0,
+        mode: false
+      };
+    },
+    token: function (stream, state) {
+      if (state.indentStack == null && stream.sol()) {
+        // update indentation, but only if indentStack is empty
+        state.indentation = 6 ; //stream.indentation();
+      }
+      // skip spaces
+      if (stream.eatSpace()) {
+        return null;
+      }
+      var returnType = null;
+      switch(state.mode){
+      case "string": // multi-line string parsing mode
+        var next = false;
+        while ((next = stream.next()) != null) {
+          if (next == "\"" || next == "\'") {
+            state.mode = false;
+            break;
+          }
+        }
+        returnType = STRING; // continue on in string mode
+        break;
+      default: // default parsing mode
+        var ch = stream.next();
+        var col = stream.column();
+        if (col >= 0 && col <= 5) {
+          returnType = COBOLLINENUM;
+        } else if (col >= 72 && col <= 79) {
+          stream.skipToEnd();
+          returnType = MODTAG;
+        } else if (ch == "*" && col == 6) { // comment
+          stream.skipToEnd(); // rest of the line is a comment
+          returnType = COMMENT;
+        } else if (ch == "\"" || ch == "\'") {
+          state.mode = "string";
+          returnType = STRING;
+        } else if (ch == "'" && !( tests.digit_or_colon.test(stream.peek()) )) {
+          returnType = ATOM;
+        } else if (ch == ".") {
+          returnType = PERIOD;
+        } else if (isNumber(ch,stream)){
+          returnType = NUMBER;
+        } else {
+          if (stream.current().match(tests.symbol)) {
+            while (col < 71) {
+              if (stream.eat(tests.symbol) === undefined) {
+                break;
+              } else {
+                col++;
+              }
+            }
+          }
+          if (keywords && keywords.propertyIsEnumerable(stream.current().toUpperCase())) {
+            returnType = KEYWORD;
+          } else if (builtins && builtins.propertyIsEnumerable(stream.current().toUpperCase())) {
+            returnType = BUILTIN;
+          } else if (atoms && atoms.propertyIsEnumerable(stream.current().toUpperCase())) {
+            returnType = ATOM;
+          } else returnType = null;
+        }
+      }
+      return returnType;
+    },
+    indent: function (state) {
+      if (state.indentStack == null) return state.indentation;
+      return state.indentStack.indent;
+    }
+  };
+});
+
+CodeMirror.defineMIME("text/x-cobol", "cobol");
+
+});
diff --git a/public/codemirror/mode/cobol/index.html b/public/codemirror/mode/cobol/index.html
new file mode 100644
index 000000000..4352419a0
--- /dev/null
+++ b/public/codemirror/mode/cobol/index.html
@@ -0,0 +1,210 @@
+
+
+CodeMirror: COBOL mode
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

+
COBOL mode

+
+    
 Select Theme     Select Font Size 
+
+
+
+
+

+
+    
+  

diff --git a/public/codemirror/mode/coffeescript/coffeescript.js b/public/codemirror/mode/coffeescript/coffeescript.js
new file mode 100644
index 000000000..adf2184fd
--- /dev/null
+++ b/public/codemirror/mode/coffeescript/coffeescript.js
@@ -0,0 +1,355 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+/**
+ * Link to the project's GitHub page:
+ * https://github.com/pickhardt/coffeescript-codemirror-mode
+ */
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("coffeescript", function(conf, parserConf) {
+  var ERRORCLASS = "error";
+
+  function wordRegexp(words) {
+    return new RegExp("^((" + words.join(")|(") + "))\\b");
+  }
+
+  var operators = /^(?:->|=>|\+[+=]?|-[\-=]?|\*[\*=]?|\/[\/=]?|[=!]=|<[><]?=?|>>?=?|%=?|&=?|\|=?|\^=?|\~|!|\?|(or|and|\|\||&&|\?)=)/;
+  var delimiters = /^(?:[()\[\]{},:`=;]|\.\.?\.?)/;
+  var identifiers = /^[_A-Za-z$][_A-Za-z$0-9]*/;
+  var atProp = /^@[_A-Za-z$][_A-Za-z$0-9]*/;
+
+  var wordOperators = wordRegexp(["and", "or", "not",
+                                  "is", "isnt", "in",
+                                  "instanceof", "typeof"]);
+  var indentKeywords = ["for", "while", "loop", "if", "unless", "else",
+                        "switch", "try", "catch", "finally", "class"];
+  var commonKeywords = ["break", "by", "continue", "debugger", "delete",
+                        "do", "in", "of", "new", "return", "then",
+                        "this", "@", "throw", "when", "until", "extends"];
+
+  var keywords = wordRegexp(indentKeywords.concat(commonKeywords));
+
+  indentKeywords = wordRegexp(indentKeywords);
+
+
+  var stringPrefixes = /^('{3}|\"{3}|['\"])/;
+  var regexPrefixes = /^(\/{3}|\/)/;
+  var commonConstants = ["Infinity", "NaN", "undefined", "null", "true", "false", "on", "off", "yes", "no"];
+  var constants = wordRegexp(commonConstants);
+
+  // Tokenizers
+  function tokenBase(stream, state) {
+    // Handle scope changes
+    if (stream.sol()) {
+      if (state.scope.align === null) state.scope.align = false;
+      var scopeOffset = state.scope.offset;
+      if (stream.eatSpace()) {
+        var lineOffset = stream.indentation();
+        if (lineOffset > scopeOffset && state.scope.type == "coffee") {
+          return "indent";
+        } else if (lineOffset < scopeOffset) {
+          return "dedent";
+        }
+        return null;
+      } else {
+        if (scopeOffset > 0) {
+          dedent(stream, state);
+        }
+      }
+    }
+    if (stream.eatSpace()) {
+      return null;
+    }
+
+    var ch = stream.peek();
+
+    // Handle docco title comment (single line)
+    if (stream.match("####")) {
+      stream.skipToEnd();
+      return "comment";
+    }
+
+    // Handle multi line comments
+    if (stream.match("###")) {
+      state.tokenize = longComment;
+      return state.tokenize(stream, state);
+    }
+
+    // Single line comment
+    if (ch === "#") {
+      stream.skipToEnd();
+      return "comment";
+    }
+
+    // Handle number literals
+    if (stream.match(/^-?[0-9\.]/, false)) {
+      var floatLiteral = false;
+      // Floats
+      if (stream.match(/^-?\d*\.\d+(e[\+\-]?\d+)?/i)) {
+        floatLiteral = true;
+      }
+      if (stream.match(/^-?\d+\.\d*/)) {
+        floatLiteral = true;
+      }
+      if (stream.match(/^-?\.\d+/)) {
+        floatLiteral = true;
+      }
+
+      if (floatLiteral) {
+        // prevent from getting extra . on 1..
+        if (stream.peek() == "."){
+          stream.backUp(1);
+        }
+        return "number";
+      }
+      // Integers
+      var intLiteral = false;
+      // Hex
+      if (stream.match(/^-?0x[0-9a-f]+/i)) {
+        intLiteral = true;
+      }
+      // Decimal
+      if (stream.match(/^-?[1-9]\d*(e[\+\-]?\d+)?/)) {
+        intLiteral = true;
+      }
+      // Zero by itself with no other piece of number.
+      if (stream.match(/^-?0(?![\dx])/i)) {
+        intLiteral = true;
+      }
+      if (intLiteral) {
+        return "number";
+      }
+    }
+
+    // Handle strings
+    if (stream.match(stringPrefixes)) {
+      state.tokenize = tokenFactory(stream.current(), false, "string");
+      return state.tokenize(stream, state);
+    }
+    // Handle regex literals
+    if (stream.match(regexPrefixes)) {
+      if (stream.current() != "/" || stream.match(/^.*\//, false)) { // prevent highlight of division
+        state.tokenize = tokenFactory(stream.current(), true, "string-2");
+        return state.tokenize(stream, state);
+      } else {
+        stream.backUp(1);
+      }
+    }
+
+
+
+    // Handle operators and delimiters
+    if (stream.match(operators) || stream.match(wordOperators)) {
+      return "operator";
+    }
+    if (stream.match(delimiters)) {
+      return "punctuation";
+    }
+
+    if (stream.match(constants)) {
+      return "atom";
+    }
+
+    if (stream.match(atProp) || state.prop && stream.match(identifiers)) {
+      return "property";
+    }
+
+    if (stream.match(keywords)) {
+      return "keyword";
+    }
+
+    if (stream.match(identifiers)) {
+      return "variable";
+    }
+
+    // Handle non-detected items
+    stream.next();
+    return ERRORCLASS;
+  }
+
+  function tokenFactory(delimiter, singleline, outclass) {
+    return function(stream, state) {
+      while (!stream.eol()) {
+        stream.eatWhile(/[^'"\/\\]/);
+        if (stream.eat("\\")) {
+          stream.next();
+          if (singleline && stream.eol()) {
+            return outclass;
+          }
+        } else if (stream.match(delimiter)) {
+          state.tokenize = tokenBase;
+          return outclass;
+        } else {
+          stream.eat(/['"\/]/);
+        }
+      }
+      if (singleline) {
+        if (parserConf.singleLineStringErrors) {
+          outclass = ERRORCLASS;
+        } else {
+          state.tokenize = tokenBase;
+        }
+      }
+      return outclass;
+    };
+  }
+
+  function longComment(stream, state) {
+    while (!stream.eol()) {
+      stream.eatWhile(/[^#]/);
+      if (stream.match("###")) {
+        state.tokenize = tokenBase;
+        break;
+      }
+      stream.eatWhile("#");
+    }
+    return "comment";
+  }
+
+  function indent(stream, state, type) {
+    type = type || "coffee";
+    var offset = 0, align = false, alignOffset = null;
+    for (var scope = state.scope; scope; scope = scope.prev) {
+      if (scope.type === "coffee" || scope.type == "}") {
+        offset = scope.offset + conf.indentUnit;
+        break;
+      }
+    }
+    if (type !== "coffee") {
+      align = null;
+      alignOffset = stream.column() + stream.current().length;
+    } else if (state.scope.align) {
+      state.scope.align = false;
+    }
+    state.scope = {
+      offset: offset,
+      type: type,
+      prev: state.scope,
+      align: align,
+      alignOffset: alignOffset
+    };
+  }
+
+  function dedent(stream, state) {
+    if (!state.scope.prev) return;
+    if (state.scope.type === "coffee") {
+      var _indent = stream.indentation();
+      var matched = false;
+      for (var scope = state.scope; scope; scope = scope.prev) {
+        if (_indent === scope.offset) {
+          matched = true;
+          break;
+        }
+      }
+      if (!matched) {
+        return true;
+      }
+      while (state.scope.prev && state.scope.offset !== _indent) {
+        state.scope = state.scope.prev;
+      }
+      return false;
+    } else {
+      state.scope = state.scope.prev;
+      return false;
+    }
+  }
+
+  function tokenLexer(stream, state) {
+    var style = state.tokenize(stream, state);
+    var current = stream.current();
+
+    // Handle scope changes.
+    if (current === "return") {
+      state.dedent = true;
+    }
+    if (((current === "->" || current === "=>") && stream.eol())
+        || style === "indent") {
+      indent(stream, state);
+    }
+    var delimiter_index = "[({".indexOf(current);
+    if (delimiter_index !== -1) {
+      indent(stream, state, "])}".slice(delimiter_index, delimiter_index+1));
+    }
+    if (indentKeywords.exec(current)){
+      indent(stream, state);
+    }
+    if (current == "then"){
+      dedent(stream, state);
+    }
+
+
+    if (style === "dedent") {
+      if (dedent(stream, state)) {
+        return ERRORCLASS;
+      }
+    }
+    delimiter_index = "])}".indexOf(current);
+    if (delimiter_index !== -1) {
+      while (state.scope.type == "coffee" && state.scope.prev)
+        state.scope = state.scope.prev;
+      if (state.scope.type == current)
+        state.scope = state.scope.prev;
+    }
+    if (state.dedent && stream.eol()) {
+      if (state.scope.type == "coffee" && state.scope.prev)
+        state.scope = state.scope.prev;
+      state.dedent = false;
+    }
+
+    return style;
+  }
+
+  var external = {
+    startState: function(basecolumn) {
+      return {
+        tokenize: tokenBase,
+        scope: {offset:basecolumn || 0, type:"coffee", prev: null, align: false},
+        prop: false,
+        dedent: 0
+      };
+    },
+
+    token: function(stream, state) {
+      var fillAlign = state.scope.align === null && state.scope;
+      if (fillAlign && stream.sol()) fillAlign.align = false;
+
+      var style = tokenLexer(stream, state);
+      if (style && style != "comment") {
+        if (fillAlign) fillAlign.align = true;
+        state.prop = style == "punctuation" && stream.current() == "."
+      }
+
+      return style;
+    },
+
+    indent: function(state, text) {
+      if (state.tokenize != tokenBase) return 0;
+      var scope = state.scope;
+      var closer = text && "])}".indexOf(text.charAt(0)) > -1;
+      if (closer) while (scope.type == "coffee" && scope.prev) scope = scope.prev;
+      var closes = closer && scope.type === text.charAt(0);
+      if (scope.align)
+        return scope.alignOffset - (closes ? 1 : 0);
+      else
+        return (closes ? scope.prev : scope).offset;
+    },
+
+    lineComment: "#",
+    fold: "indent"
+  };
+  return external;
+});
+
+CodeMirror.defineMIME("text/x-coffeescript", "coffeescript");
+CodeMirror.defineMIME("text/coffeescript", "coffeescript");
+
+});
diff --git a/public/codemirror/mode/coffeescript/index.html b/public/codemirror/mode/coffeescript/index.html
new file mode 100644
index 000000000..93a5f4f30
--- /dev/null
+++ b/public/codemirror/mode/coffeescript/index.html
@@ -0,0 +1,740 @@
+
+
+CodeMirror: CoffeeScript mode
+
+
+
+
+
+
+
+
+
+

+
CoffeeScript mode

+

+    
+
+    
MIME types defined: text/x-coffeescript.

+
+    
The CoffeeScript mode was written by Jeff Pickhardt.

+
+  

diff --git a/public/codemirror/mode/commonlisp/commonlisp.js b/public/codemirror/mode/commonlisp/commonlisp.js
new file mode 100644
index 000000000..8cd212d3a
--- /dev/null
+++ b/public/codemirror/mode/commonlisp/commonlisp.js
@@ -0,0 +1,124 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("commonlisp", function (config) {
+  var specialForm = /^(block|let*|return-from|catch|load-time-value|setq|eval-when|locally|symbol-macrolet|flet|macrolet|tagbody|function|multiple-value-call|the|go|multiple-value-prog1|throw|if|progn|unwind-protect|labels|progv|let|quote)$/;
+  var assumeBody = /^with|^def|^do|^prog|case$|^cond$|bind$|when$|unless$/;
+  var numLiteral = /^(?:[+\-]?(?:\d+|\d*\.\d+)(?:[efd][+\-]?\d+)?|[+\-]?\d+(?:\/[+\-]?\d+)?|#b[+\-]?[01]+|#o[+\-]?[0-7]+|#x[+\-]?[\da-f]+)/;
+  var symbol = /[^\s'`,@()\[\]";]/;
+  var type;
+
+  function readSym(stream) {
+    var ch;
+    while (ch = stream.next()) {
+      if (ch == "\\") stream.next();
+      else if (!symbol.test(ch)) { stream.backUp(1); break; }
+    }
+    return stream.current();
+  }
+
+  function base(stream, state) {
+    if (stream.eatSpace()) {type = "ws"; return null;}
+    if (stream.match(numLiteral)) return "number";
+    var ch = stream.next();
+    if (ch == "\\") ch = stream.next();
+
+    if (ch == '"') return (state.tokenize = inString)(stream, state);
+    else if (ch == "(") { type = "open"; return "bracket"; }
+    else if (ch == ")" || ch == "]") { type = "close"; return "bracket"; }
+    else if (ch == ";") { stream.skipToEnd(); type = "ws"; return "comment"; }
+    else if (/['`,@]/.test(ch)) return null;
+    else if (ch == "|") {
+      if (stream.skipTo("|")) { stream.next(); return "symbol"; }
+      else { stream.skipToEnd(); return "error"; }
+    } else if (ch == "#") {
+      var ch = stream.next();
+      if (ch == "(") { type = "open"; return "bracket"; }
+      else if (/[+\-=\.']/.test(ch)) return null;
+      else if (/\d/.test(ch) && stream.match(/^\d*#/)) return null;
+      else if (ch == "|") return (state.tokenize = inComment)(stream, state);
+      else if (ch == ":") { readSym(stream); return "meta"; }
+      else if (ch == "\\") { stream.next(); readSym(stream); return "string-2" }
+      else return "error";
+    } else {
+      var name = readSym(stream);
+      if (name == ".") return null;
+      type = "symbol";
+      if (name == "nil" || name == "t" || name.charAt(0) == ":") return "atom";
+      if (state.lastType == "open" && (specialForm.test(name) || assumeBody.test(name))) return "keyword";
+      if (name.charAt(0) == "&") return "variable-2";
+      return "variable";
+    }
+  }
+
+  function inString(stream, state) {
+    var escaped = false, next;
+    while (next = stream.next()) {
+      if (next == '"' && !escaped) { state.tokenize = base; break; }
+      escaped = !escaped && next == "\\";
+    }
+    return "string";
+  }
+
+  function inComment(stream, state) {
+    var next, last;
+    while (next = stream.next()) {
+      if (next == "#" && last == "|") { state.tokenize = base; break; }
+      last = next;
+    }
+    type = "ws";
+    return "comment";
+  }
+
+  return {
+    startState: function () {
+      return {ctx: {prev: null, start: 0, indentTo: 0}, lastType: null, tokenize: base};
+    },
+
+    token: function (stream, state) {
+      if (stream.sol() && typeof state.ctx.indentTo != "number")
+        state.ctx.indentTo = state.ctx.start + 1;
+
+      type = null;
+      var style = state.tokenize(stream, state);
+      if (type != "ws") {
+        if (state.ctx.indentTo == null) {
+          if (type == "symbol" && assumeBody.test(stream.current()))
+            state.ctx.indentTo = state.ctx.start + config.indentUnit;
+          else
+            state.ctx.indentTo = "next";
+        } else if (state.ctx.indentTo == "next") {
+          state.ctx.indentTo = stream.column();
+        }
+        state.lastType = type;
+      }
+      if (type == "open") state.ctx = {prev: state.ctx, start: stream.column(), indentTo: null};
+      else if (type == "close") state.ctx = state.ctx.prev || state.ctx;
+      return style;
+    },
+
+    indent: function (state, _textAfter) {
+      var i = state.ctx.indentTo;
+      return typeof i == "number" ? i : state.ctx.start + 1;
+    },
+
+    closeBrackets: {pairs: "()[]{}\"\""},
+    lineComment: ";;",
+    blockCommentStart: "#|",
+    blockCommentEnd: "|#"
+  };
+});
+
+CodeMirror.defineMIME("text/x-common-lisp", "commonlisp");
+
+});
diff --git a/public/codemirror/mode/commonlisp/index.html b/public/codemirror/mode/commonlisp/index.html
new file mode 100644
index 000000000..f2bf4522d
--- /dev/null
+++ b/public/codemirror/mode/commonlisp/index.html
@@ -0,0 +1,177 @@
+
+
+CodeMirror: Common Lisp mode
+
+
+
+
+
+
+
+
+
+

+
Common Lisp mode

+

+    
+
+    
MIME types defined: text/x-common-lisp.

+
+  

diff --git a/public/codemirror/mode/crystal/crystal.js b/public/codemirror/mode/crystal/crystal.js
new file mode 100644
index 000000000..dada112da
--- /dev/null
+++ b/public/codemirror/mode/crystal/crystal.js
@@ -0,0 +1,433 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineMode("crystal", function(config) {
+    function wordRegExp(words, end) {
+      return new RegExp((end ? "" : "^") + "(?:" + words.join("|") + ")" + (end ? "$" : "\\b"));
+    }
+
+    function chain(tokenize, stream, state) {
+      state.tokenize.push(tokenize);
+      return tokenize(stream, state);
+    }
+
+    var operators = /^(?:[-+/%|&^]|\*\*?|[<>]{2})/;
+    var conditionalOperators = /^(?:[=!]~|===|<=>|[<>=!]=?|[|&]{2}|~)/;
+    var indexingOperators = /^(?:\[\][?=]?)/;
+    var anotherOperators = /^(?:\.(?:\.{2})?|->|[?:])/;
+    var idents = /^[a-z_\u009F-\uFFFF][a-zA-Z0-9_\u009F-\uFFFF]*/;
+    var types = /^[A-Z_\u009F-\uFFFF][a-zA-Z0-9_\u009F-\uFFFF]*/;
+    var keywords = wordRegExp([
+      "abstract", "alias", "as", "asm", "begin", "break", "case", "class", "def", "do",
+      "else", "elsif", "end", "ensure", "enum", "extend", "for", "fun", "if",
+      "include", "instance_sizeof", "lib", "macro", "module", "next", "of", "out", "pointerof",
+      "private", "protected", "rescue", "return", "require", "select", "sizeof", "struct",
+      "super", "then", "type", "typeof", "uninitialized", "union", "unless", "until", "when", "while", "with",
+      "yield", "__DIR__", "__END_LINE__", "__FILE__", "__LINE__"
+    ]);
+    var atomWords = wordRegExp(["true", "false", "nil", "self"]);
+    var indentKeywordsArray = [
+      "def", "fun", "macro",
+      "class", "module", "struct", "lib", "enum", "union",
+      "do", "for"
+    ];
+    var indentKeywords = wordRegExp(indentKeywordsArray);
+    var indentExpressionKeywordsArray = ["if", "unless", "case", "while", "until", "begin", "then"];
+    var indentExpressionKeywords = wordRegExp(indentExpressionKeywordsArray);
+    var dedentKeywordsArray = ["end", "else", "elsif", "rescue", "ensure"];
+    var dedentKeywords = wordRegExp(dedentKeywordsArray);
+    var dedentPunctualsArray = ["\\)", "\\}", "\\]"];
+    var dedentPunctuals = new RegExp("^(?:" + dedentPunctualsArray.join("|") + ")$");
+    var nextTokenizer = {
+      "def": tokenFollowIdent, "fun": tokenFollowIdent, "macro": tokenMacroDef,
+      "class": tokenFollowType, "module": tokenFollowType, "struct": tokenFollowType,
+      "lib": tokenFollowType, "enum": tokenFollowType, "union": tokenFollowType
+    };
+    var matching = {"[": "]", "{": "}", "(": ")", "<": ">"};
+
+    function tokenBase(stream, state) {
+      if (stream.eatSpace()) {
+        return null;
+      }
+
+      // Macros
+      if (state.lastToken != "\\" && stream.match("{%", false)) {
+        return chain(tokenMacro("%", "%"), stream, state);
+      }
+
+      if (state.lastToken != "\\" && stream.match("{{", false)) {
+        return chain(tokenMacro("{", "}"), stream, state);
+      }
+
+      // Comments
+      if (stream.peek() == "#") {
+        stream.skipToEnd();
+        return "comment";
+      }
+
+      // Variables and keywords
+      var matched;
+      if (stream.match(idents)) {
+        stream.eat(/[?!]/);
+
+        matched = stream.current();
+        if (stream.eat(":")) {
+          return "atom";
+        } else if (state.lastToken == ".") {
+          return "property";
+        } else if (keywords.test(matched)) {
+          if (indentKeywords.test(matched)) {
+            if (!(matched == "fun" && state.blocks.indexOf("lib") >= 0) && !(matched == "def" && state.lastToken == "abstract")) {
+              state.blocks.push(matched);
+              state.currentIndent += 1;
+            }
+          } else if ((state.lastStyle == "operator" || !state.lastStyle) && indentExpressionKeywords.test(matched)) {
+            state.blocks.push(matched);
+            state.currentIndent += 1;
+          } else if (matched == "end") {
+            state.blocks.pop();
+            state.currentIndent -= 1;
+          }
+
+          if (nextTokenizer.hasOwnProperty(matched)) {
+            state.tokenize.push(nextTokenizer[matched]);
+          }
+
+          return "keyword";
+        } else if (atomWords.test(matched)) {
+          return "atom";
+        }
+
+        return "variable";
+      }
+
+      // Class variables and instance variables
+      // or attributes
+      if (stream.eat("@")) {
+        if (stream.peek() == "[") {
+          return chain(tokenNest("[", "]", "meta"), stream, state);
+        }
+
+        stream.eat("@");
+        stream.match(idents) || stream.match(types);
+        return "variable-2";
+      }
+
+      // Constants and types
+      if (stream.match(types)) {
+        return "tag";
+      }
+
+      // Symbols or ':' operator
+      if (stream.eat(":")) {
+        if (stream.eat("\"")) {
+          return chain(tokenQuote("\"", "atom", false), stream, state);
+        } else if (stream.match(idents) || stream.match(types) ||
+                   stream.match(operators) || stream.match(conditionalOperators) || stream.match(indexingOperators)) {
+          return "atom";
+        }
+        stream.eat(":");
+        return "operator";
+      }
+
+      // Strings
+      if (stream.eat("\"")) {
+        return chain(tokenQuote("\"", "string", true), stream, state);
+      }
+
+      // Strings or regexps or macro variables or '%' operator
+      if (stream.peek() == "%") {
+        var style = "string";
+        var embed = true;
+        var delim;
+
+        if (stream.match("%r")) {
+          // Regexps
+          style = "string-2";
+          delim = stream.next();
+        } else if (stream.match("%w")) {
+          embed = false;
+          delim = stream.next();
+        } else if (stream.match("%q")) {
+          embed = false;
+          delim = stream.next();
+        } else {
+          if(delim = stream.match(/^%([^\w\s=])/)) {
+            delim = delim[1];
+          } else if (stream.match(/^%[a-zA-Z0-9_\u009F-\uFFFF]*/)) {
+            // Macro variables
+            return "meta";
+          } else {
+            // '%' operator
+            return "operator";
+          }
+        }
+
+        if (matching.hasOwnProperty(delim)) {
+          delim = matching[delim];
+        }
+        return chain(tokenQuote(delim, style, embed), stream, state);
+      }
+
+      // Here Docs
+      if (matched = stream.match(/^<<-('?)([A-Z]\w*)\1/)) {
+        return chain(tokenHereDoc(matched[2], !matched[1]), stream, state)
+      }
+
+      // Characters
+      if (stream.eat("'")) {
+        stream.match(/^(?:[^']|\\(?:[befnrtv0'"]|[0-7]{3}|u(?:[0-9a-fA-F]{4}|\{[0-9a-fA-F]{1,6}\})))/);
+        stream.eat("'");
+        return "atom";
+      }
+
+      // Numbers
+      if (stream.eat("0")) {
+        if (stream.eat("x")) {
+          stream.match(/^[0-9a-fA-F]+/);
+        } else if (stream.eat("o")) {
+          stream.match(/^[0-7]+/);
+        } else if (stream.eat("b")) {
+          stream.match(/^[01]+/);
+        }
+        return "number";
+      }
+
+      if (stream.eat(/^\d/)) {
+        stream.match(/^\d*(?:\.\d+)?(?:[eE][+-]?\d+)?/);
+        return "number";
+      }
+
+      // Operators
+      if (stream.match(operators)) {
+        stream.eat("="); // Operators can follow assign symbol.
+        return "operator";
+      }
+
+      if (stream.match(conditionalOperators) || stream.match(anotherOperators)) {
+        return "operator";
+      }
+
+      // Parens and braces
+      if (matched = stream.match(/[({[]/, false)) {
+        matched = matched[0];
+        return chain(tokenNest(matched, matching[matched], null), stream, state);
+      }
+
+      // Escapes
+      if (stream.eat("\\")) {
+        stream.next();
+        return "meta";
+      }
+
+      stream.next();
+      return null;
+    }
+
+    function tokenNest(begin, end, style, started) {
+      return function (stream, state) {
+        if (!started && stream.match(begin)) {
+          state.tokenize[state.tokenize.length - 1] = tokenNest(begin, end, style, true);
+          state.currentIndent += 1;
+          return style;
+        }
+
+        var nextStyle = tokenBase(stream, state);
+        if (stream.current() === end) {
+          state.tokenize.pop();
+          state.currentIndent -= 1;
+          nextStyle = style;
+        }
+
+        return nextStyle;
+      };
+    }
+
+    function tokenMacro(begin, end, started) {
+      return function (stream, state) {
+        if (!started && stream.match("{" + begin)) {
+          state.currentIndent += 1;
+          state.tokenize[state.tokenize.length - 1] = tokenMacro(begin, end, true);
+          return "meta";
+        }
+
+        if (stream.match(end + "}")) {
+          state.currentIndent -= 1;
+          state.tokenize.pop();
+          return "meta";
+        }
+
+        return tokenBase(stream, state);
+      };
+    }
+
+    function tokenMacroDef(stream, state) {
+      if (stream.eatSpace()) {
+        return null;
+      }
+
+      var matched;
+      if (matched = stream.match(idents)) {
+        if (matched == "def") {
+          return "keyword";
+        }
+        stream.eat(/[?!]/);
+      }
+
+      state.tokenize.pop();
+      return "def";
+    }
+
+    function tokenFollowIdent(stream, state) {
+      if (stream.eatSpace()) {
+        return null;
+      }
+
+      if (stream.match(idents)) {
+        stream.eat(/[!?]/);
+      } else {
+        stream.match(operators) || stream.match(conditionalOperators) || stream.match(indexingOperators);
+      }
+      state.tokenize.pop();
+      return "def";
+    }
+
+    function tokenFollowType(stream, state) {
+      if (stream.eatSpace()) {
+        return null;
+      }
+
+      stream.match(types);
+      state.tokenize.pop();
+      return "def";
+    }
+
+    function tokenQuote(end, style, embed) {
+      return function (stream, state) {
+        var escaped = false;
+
+        while (stream.peek()) {
+          if (!escaped) {
+            if (stream.match("{%", false)) {
+              state.tokenize.push(tokenMacro("%", "%"));
+              return style;
+            }
+
+            if (stream.match("{{", false)) {
+              state.tokenize.push(tokenMacro("{", "}"));
+              return style;
+            }
+
+            if (embed && stream.match("#{", false)) {
+              state.tokenize.push(tokenNest("#{", "}", "meta"));
+              return style;
+            }
+
+            var ch = stream.next();
+
+            if (ch == end) {
+              state.tokenize.pop();
+              return style;
+            }
+
+            escaped = embed && ch == "\\";
+          } else {
+            stream.next();
+            escaped = false;
+          }
+        }
+
+        return style;
+      };
+    }
+
+    function tokenHereDoc(phrase, embed) {
+      return function (stream, state) {
+        if (stream.sol()) {
+          stream.eatSpace()
+          if (stream.match(phrase)) {
+            state.tokenize.pop();
+            return "string";
+          }
+        }
+
+        var escaped = false;
+        while (stream.peek()) {
+          if (!escaped) {
+            if (stream.match("{%", false)) {
+              state.tokenize.push(tokenMacro("%", "%"));
+              return "string";
+            }
+
+            if (stream.match("{{", false)) {
+              state.tokenize.push(tokenMacro("{", "}"));
+              return "string";
+            }
+
+            if (embed && stream.match("#{", false)) {
+              state.tokenize.push(tokenNest("#{", "}", "meta"));
+              return "string";
+            }
+
+            escaped = embed && stream.next() == "\\";
+          } else {
+            stream.next();
+            escaped = false;
+          }
+        }
+
+        return "string";
+      }
+    }
+
+    return {
+      startState: function () {
+        return {
+          tokenize: [tokenBase],
+          currentIndent: 0,
+          lastToken: null,
+          lastStyle: null,
+          blocks: []
+        };
+      },
+
+      token: function (stream, state) {
+        var style = state.tokenize[state.tokenize.length - 1](stream, state);
+        var token = stream.current();
+
+        if (style && style != "comment") {
+          state.lastToken = token;
+          state.lastStyle = style;
+        }
+
+        return style;
+      },
+
+      indent: function (state, textAfter) {
+        textAfter = textAfter.replace(/^\s*(?:\{%)?\s*|\s*(?:%\})?\s*$/g, "");
+
+        if (dedentKeywords.test(textAfter) || dedentPunctuals.test(textAfter)) {
+          return config.indentUnit * (state.currentIndent - 1);
+        }
+
+        return config.indentUnit * state.currentIndent;
+      },
+
+      fold: "indent",
+      electricInput: wordRegExp(dedentPunctualsArray.concat(dedentKeywordsArray), true),
+      lineComment: '#'
+    };
+  });
+
+  CodeMirror.defineMIME("text/x-crystal", "crystal");
+});
diff --git a/public/codemirror/mode/crystal/index.html b/public/codemirror/mode/crystal/index.html
new file mode 100644
index 000000000..95412579f
--- /dev/null
+++ b/public/codemirror/mode/crystal/index.html
@@ -0,0 +1,116 @@
+
+
+CodeMirror: Crystal mode
+
+
+
+
+
+
+
+
+
+
+
+

+
Crystal mode

+

+
+
+
MIME types defined: text/x-crystal.

+

diff --git a/public/codemirror/mode/css/css.js b/public/codemirror/mode/css/css.js
new file mode 100644
index 000000000..02cc93d9c
--- /dev/null
+++ b/public/codemirror/mode/css/css.js
@@ -0,0 +1,831 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("css", function(config, parserConfig) {
+  var inline = parserConfig.inline
+  if (!parserConfig.propertyKeywords) parserConfig = CodeMirror.resolveMode("text/css");
+
+  var indentUnit = config.indentUnit,
+      tokenHooks = parserConfig.tokenHooks,
+      documentTypes = parserConfig.documentTypes || {},
+      mediaTypes = parserConfig.mediaTypes || {},
+      mediaFeatures = parserConfig.mediaFeatures || {},
+      mediaValueKeywords = parserConfig.mediaValueKeywords || {},
+      propertyKeywords = parserConfig.propertyKeywords || {},
+      nonStandardPropertyKeywords = parserConfig.nonStandardPropertyKeywords || {},
+      fontProperties = parserConfig.fontProperties || {},
+      counterDescriptors = parserConfig.counterDescriptors || {},
+      colorKeywords = parserConfig.colorKeywords || {},
+      valueKeywords = parserConfig.valueKeywords || {},
+      allowNested = parserConfig.allowNested,
+      lineComment = parserConfig.lineComment,
+      supportsAtComponent = parserConfig.supportsAtComponent === true;
+
+  var type, override;
+  function ret(style, tp) { type = tp; return style; }
+
+  // Tokenizers
+
+  function tokenBase(stream, state) {
+    var ch = stream.next();
+    if (tokenHooks[ch]) {
+      var result = tokenHooks[ch](stream, state);
+      if (result !== false) return result;
+    }
+    if (ch == "@") {
+      stream.eatWhile(/[\w\\\-]/);
+      return ret("def", stream.current());
+    } else if (ch == "=" || (ch == "~" || ch == "|") && stream.eat("=")) {
+      return ret(null, "compare");
+    } else if (ch == "\"" || ch == "'") {
+      state.tokenize = tokenString(ch);
+      return state.tokenize(stream, state);
+    } else if (ch == "#") {
+      stream.eatWhile(/[\w\\\-]/);
+      return ret("atom", "hash");
+    } else if (ch == "!") {
+      stream.match(/^\s*\w*/);
+      return ret("keyword", "important");
+    } else if (/\d/.test(ch) || ch == "." && stream.eat(/\d/)) {
+      stream.eatWhile(/[\w.%]/);
+      return ret("number", "unit");
+    } else if (ch === "-") {
+      if (/[\d.]/.test(stream.peek())) {
+        stream.eatWhile(/[\w.%]/);
+        return ret("number", "unit");
+      } else if (stream.match(/^-[\w\\\-]+/)) {
+        stream.eatWhile(/[\w\\\-]/);
+        if (stream.match(/^\s*:/, false))
+          return ret("variable-2", "variable-definition");
+        return ret("variable-2", "variable");
+      } else if (stream.match(/^\w+-/)) {
+        return ret("meta", "meta");
+      }
+    } else if (/[,+>*\/]/.test(ch)) {
+      return ret(null, "select-op");
+    } else if (ch == "." && stream.match(/^-?[_a-z][_a-z0-9-]*/i)) {
+      return ret("qualifier", "qualifier");
+    } else if (/[:;{}\[\]\(\)]/.test(ch)) {
+      return ret(null, ch);
+    } else if ((ch == "u" && stream.match(/rl(-prefix)?\(/)) ||
+               (ch == "d" && stream.match("omain(")) ||
+               (ch == "r" && stream.match("egexp("))) {
+      stream.backUp(1);
+      state.tokenize = tokenParenthesized;
+      return ret("property", "word");
+    } else if (/[\w\\\-]/.test(ch)) {
+      stream.eatWhile(/[\w\\\-]/);
+      return ret("property", "word");
+    } else {
+      return ret(null, null);
+    }
+  }
+
+  function tokenString(quote) {
+    return function(stream, state) {
+      var escaped = false, ch;
+      while ((ch = stream.next()) != null) {
+        if (ch == quote && !escaped) {
+          if (quote == ")") stream.backUp(1);
+          break;
+        }
+        escaped = !escaped && ch == "\\";
+      }
+      if (ch == quote || !escaped && quote != ")") state.tokenize = null;
+      return ret("string", "string");
+    };
+  }
+
+  function tokenParenthesized(stream, state) {
+    stream.next(); // Must be '('
+    if (!stream.match(/\s*[\"\')]/, false))
+      state.tokenize = tokenString(")");
+    else
+      state.tokenize = null;
+    return ret(null, "(");
+  }
+
+  // Context management
+
+  function Context(type, indent, prev) {
+    this.type = type;
+    this.indent = indent;
+    this.prev = prev;
+  }
+
+  function pushContext(state, stream, type, indent) {
+    state.context = new Context(type, stream.indentation() + (indent === false ? 0 : indentUnit), state.context);
+    return type;
+  }
+
+  function popContext(state) {
+    if (state.context.prev)
+      state.context = state.context.prev;
+    return state.context.type;
+  }
+
+  function pass(type, stream, state) {
+    return states[state.context.type](type, stream, state);
+  }
+  function popAndPass(type, stream, state, n) {
+    for (var i = n || 1; i > 0; i--)
+      state.context = state.context.prev;
+    return pass(type, stream, state);
+  }
+
+  // Parser
+
+  function wordAsValue(stream) {
+    var word = stream.current().toLowerCase();
+    if (valueKeywords.hasOwnProperty(word))
+      override = "atom";
+    else if (colorKeywords.hasOwnProperty(word))
+      override = "keyword";
+    else
+      override = "variable";
+  }
+
+  var states = {};
+
+  states.top = function(type, stream, state) {
+    if (type == "{") {
+      return pushContext(state, stream, "block");
+    } else if (type == "}" && state.context.prev) {
+      return popContext(state);
+    } else if (supportsAtComponent && /@component/.test(type)) {
+      return pushContext(state, stream, "atComponentBlock");
+    } else if (/^@(-moz-)?document$/.test(type)) {
+      return pushContext(state, stream, "documentTypes");
+    } else if (/^@(media|supports|(-moz-)?document|import)$/.test(type)) {
+      return pushContext(state, stream, "atBlock");
+    } else if (/^@(font-face|counter-style)/.test(type)) {
+      state.stateArg = type;
+      return "restricted_atBlock_before";
+    } else if (/^@(-(moz|ms|o|webkit)-)?keyframes$/.test(type)) {
+      return "keyframes";
+    } else if (type && type.charAt(0) == "@") {
+      return pushContext(state, stream, "at");
+    } else if (type == "hash") {
+      override = "builtin";
+    } else if (type == "word") {
+      override = "tag";
+    } else if (type == "variable-definition") {
+      return "maybeprop";
+    } else if (type == "interpolation") {
+      return pushContext(state, stream, "interpolation");
+    } else if (type == ":") {
+      return "pseudo";
+    } else if (allowNested && type == "(") {
+      return pushContext(state, stream, "parens");
+    }
+    return state.context.type;
+  };
+
+  states.block = function(type, stream, state) {
+    if (type == "word") {
+      var word = stream.current().toLowerCase();
+      if (propertyKeywords.hasOwnProperty(word)) {
+        override = "property";
+        return "maybeprop";
+      } else if (nonStandardPropertyKeywords.hasOwnProperty(word)) {
+        override = "string-2";
+        return "maybeprop";
+      } else if (allowNested) {
+        override = stream.match(/^\s*:(?:\s|$)/, false) ? "property" : "tag";
+        return "block";
+      } else {
+        override += " error";
+        return "maybeprop";
+      }
+    } else if (type == "meta") {
+      return "block";
+    } else if (!allowNested && (type == "hash" || type == "qualifier")) {
+      override = "error";
+      return "block";
+    } else {
+      return states.top(type, stream, state);
+    }
+  };
+
+  states.maybeprop = function(type, stream, state) {
+    if (type == ":") return pushContext(state, stream, "prop");
+    return pass(type, stream, state);
+  };
+
+  states.prop = function(type, stream, state) {
+    if (type == ";") return popContext(state);
+    if (type == "{" && allowNested) return pushContext(state, stream, "propBlock");
+    if (type == "}" || type == "{") return popAndPass(type, stream, state);
+    if (type == "(") return pushContext(state, stream, "parens");
+
+    if (type == "hash" && !/^#([0-9a-fA-f]{3,4}|[0-9a-fA-f]{6}|[0-9a-fA-f]{8})$/.test(stream.current())) {
+      override += " error";
+    } else if (type == "word") {
+      wordAsValue(stream);
+    } else if (type == "interpolation") {
+      return pushContext(state, stream, "interpolation");
+    }
+    return "prop";
+  };
+
+  states.propBlock = function(type, _stream, state) {
+    if (type == "}") return popContext(state);
+    if (type == "word") { override = "property"; return "maybeprop"; }
+    return state.context.type;
+  };
+
+  states.parens = function(type, stream, state) {
+    if (type == "{" || type == "}") return popAndPass(type, stream, state);
+    if (type == ")") return popContext(state);
+    if (type == "(") return pushContext(state, stream, "parens");
+    if (type == "interpolation") return pushContext(state, stream, "interpolation");
+    if (type == "word") wordAsValue(stream);
+    return "parens";
+  };
+
+  states.pseudo = function(type, stream, state) {
+    if (type == "meta") return "pseudo";
+
+    if (type == "word") {
+      override = "variable-3";
+      return state.context.type;
+    }
+    return pass(type, stream, state);
+  };
+
+  states.documentTypes = function(type, stream, state) {
+    if (type == "word" && documentTypes.hasOwnProperty(stream.current())) {
+      override = "tag";
+      return state.context.type;
+    } else {
+      return states.atBlock(type, stream, state);
+    }
+  };
+
+  states.atBlock = function(type, stream, state) {
+    if (type == "(") return pushContext(state, stream, "atBlock_parens");
+    if (type == "}" || type == ";") return popAndPass(type, stream, state);
+    if (type == "{") return popContext(state) && pushContext(state, stream, allowNested ? "block" : "top");
+
+    if (type == "interpolation") return pushContext(state, stream, "interpolation");
+
+    if (type == "word") {
+      var word = stream.current().toLowerCase();
+      if (word == "only" || word == "not" || word == "and" || word == "or")
+        override = "keyword";
+      else if (mediaTypes.hasOwnProperty(word))
+        override = "attribute";
+      else if (mediaFeatures.hasOwnProperty(word))
+        override = "property";
+      else if (mediaValueKeywords.hasOwnProperty(word))
+        override = "keyword";
+      else if (propertyKeywords.hasOwnProperty(word))
+        override = "property";
+      else if (nonStandardPropertyKeywords.hasOwnProperty(word))
+        override = "string-2";
+      else if (valueKeywords.hasOwnProperty(word))
+        override = "atom";
+      else if (colorKeywords.hasOwnProperty(word))
+        override = "keyword";
+      else
+        override = "error";
+    }
+    return state.context.type;
+  };
+
+  states.atComponentBlock = function(type, stream, state) {
+    if (type == "}")
+      return popAndPass(type, stream, state);
+    if (type == "{")
+      return popContext(state) && pushContext(state, stream, allowNested ? "block" : "top", false);
+    if (type == "word")
+      override = "error";
+    return state.context.type;
+  };
+
+  states.atBlock_parens = function(type, stream, state) {
+    if (type == ")") return popContext(state);
+    if (type == "{" || type == "}") return popAndPass(type, stream, state, 2);
+    return states.atBlock(type, stream, state);
+  };
+
+  states.restricted_atBlock_before = function(type, stream, state) {
+    if (type == "{")
+      return pushContext(state, stream, "restricted_atBlock");
+    if (type == "word" && state.stateArg == "@counter-style") {
+      override = "variable";
+      return "restricted_atBlock_before";
+    }
+    return pass(type, stream, state);
+  };
+
+  states.restricted_atBlock = function(type, stream, state) {
+    if (type == "}") {
+      state.stateArg = null;
+      return popContext(state);
+    }
+    if (type == "word") {
+      if ((state.stateArg == "@font-face" && !fontProperties.hasOwnProperty(stream.current().toLowerCase())) ||
+          (state.stateArg == "@counter-style" && !counterDescriptors.hasOwnProperty(stream.current().toLowerCase())))
+        override = "error";
+      else
+        override = "property";
+      return "maybeprop";
+    }
+    return "restricted_atBlock";
+  };
+
+  states.keyframes = function(type, stream, state) {
+    if (type == "word") { override = "variable"; return "keyframes"; }
+    if (type == "{") return pushContext(state, stream, "top");
+    return pass(type, stream, state);
+  };
+
+  states.at = function(type, stream, state) {
+    if (type == ";") return popContext(state);
+    if (type == "{" || type == "}") return popAndPass(type, stream, state);
+    if (type == "word") override = "tag";
+    else if (type == "hash") override = "builtin";
+    return "at";
+  };
+
+  states.interpolation = function(type, stream, state) {
+    if (type == "}") return popContext(state);
+    if (type == "{" || type == ";") return popAndPass(type, stream, state);
+    if (type == "word") override = "variable";
+    else if (type != "variable" && type != "(" && type != ")") override = "error";
+    return "interpolation";
+  };
+
+  return {
+    startState: function(base) {
+      return {tokenize: null,
+              state: inline ? "block" : "top",
+              stateArg: null,
+              context: new Context(inline ? "block" : "top", base || 0, null)};
+    },
+
+    token: function(stream, state) {
+      if (!state.tokenize && stream.eatSpace()) return null;
+      var style = (state.tokenize || tokenBase)(stream, state);
+      if (style && typeof style == "object") {
+        type = style[1];
+        style = style[0];
+      }
+      override = style;
+      state.state = states[state.state](type, stream, state);
+      return override;
+    },
+
+    indent: function(state, textAfter) {
+      var cx = state.context, ch = textAfter && textAfter.charAt(0);
+      var indent = cx.indent;
+      if (cx.type == "prop" && (ch == "}" || ch == ")")) cx = cx.prev;
+      if (cx.prev) {
+        if (ch == "}" && (cx.type == "block" || cx.type == "top" ||
+                          cx.type == "interpolation" || cx.type == "restricted_atBlock")) {
+          // Resume indentation from parent context.
+          cx = cx.prev;
+          indent = cx.indent;
+        } else if (ch == ")" && (cx.type == "parens" || cx.type == "atBlock_parens") ||
+            ch == "{" && (cx.type == "at" || cx.type == "atBlock")) {
+          // Dedent relative to current context.
+          indent = Math.max(0, cx.indent - indentUnit);
+          cx = cx.prev;
+        }
+      }
+      return indent;
+    },
+
+    electricChars: "}",
+    blockCommentStart: "/*",
+    blockCommentEnd: "*/",
+    lineComment: lineComment,
+    fold: "brace"
+  };
+});
+
+  function keySet(array) {
+    var keys = {};
+    for (var i = 0; i < array.length; ++i) {
+      keys[array[i].toLowerCase()] = true;
+    }
+    return keys;
+  }
+
+  var documentTypes_ = [
+    "domain", "regexp", "url", "url-prefix"
+  ], documentTypes = keySet(documentTypes_);
+
+  var mediaTypes_ = [
+    "all", "aural", "braille", "handheld", "print", "projection", "screen",
+    "tty", "tv", "embossed"
+  ], mediaTypes = keySet(mediaTypes_);
+
+  var mediaFeatures_ = [
+    "width", "min-width", "max-width", "height", "min-height", "max-height",
+    "device-width", "min-device-width", "max-device-width", "device-height",
+    "min-device-height", "max-device-height", "aspect-ratio",
+    "min-aspect-ratio", "max-aspect-ratio", "device-aspect-ratio",
+    "min-device-aspect-ratio", "max-device-aspect-ratio", "color", "min-color",
+    "max-color", "color-index", "min-color-index", "max-color-index",
+    "monochrome", "min-monochrome", "max-monochrome", "resolution",
+    "min-resolution", "max-resolution", "scan", "grid", "orientation",
+    "device-pixel-ratio", "min-device-pixel-ratio", "max-device-pixel-ratio",
+    "pointer", "any-pointer", "hover", "any-hover"
+  ], mediaFeatures = keySet(mediaFeatures_);
+
+  var mediaValueKeywords_ = [
+    "landscape", "portrait", "none", "coarse", "fine", "on-demand", "hover",
+    "interlace", "progressive"
+  ], mediaValueKeywords = keySet(mediaValueKeywords_);
+
+  var propertyKeywords_ = [
+    "align-content", "align-items", "align-self", "alignment-adjust",
+    "alignment-baseline", "anchor-point", "animation", "animation-delay",
+    "animation-direction", "animation-duration", "animation-fill-mode",
+    "animation-iteration-count", "animation-name", "animation-play-state",
+    "animation-timing-function", "appearance", "azimuth", "backface-visibility",
+    "background", "background-attachment", "background-blend-mode", "background-clip",
+    "background-color", "background-image", "background-origin", "background-position",
+    "background-repeat", "background-size", "baseline-shift", "binding",
+    "bleed", "bookmark-label", "bookmark-level", "bookmark-state",
+    "bookmark-target", "border", "border-bottom", "border-bottom-color",
+    "border-bottom-left-radius", "border-bottom-right-radius",
+    "border-bottom-style", "border-bottom-width", "border-collapse",
+    "border-color", "border-image", "border-image-outset",
+    "border-image-repeat", "border-image-slice", "border-image-source",
+    "border-image-width", "border-left", "border-left-color",
+    "border-left-style", "border-left-width", "border-radius", "border-right",
+    "border-right-color", "border-right-style", "border-right-width",
+    "border-spacing", "border-style", "border-top", "border-top-color",
+    "border-top-left-radius", "border-top-right-radius", "border-top-style",
+    "border-top-width", "border-width", "bottom", "box-decoration-break",
+    "box-shadow", "box-sizing", "break-after", "break-before", "break-inside",
+    "caption-side", "clear", "clip", "color", "color-profile", "column-count",
+    "column-fill", "column-gap", "column-rule", "column-rule-color",
+    "column-rule-style", "column-rule-width", "column-span", "column-width",
+    "columns", "content", "counter-increment", "counter-reset", "crop", "cue",
+    "cue-after", "cue-before", "cursor", "direction", "display",
+    "dominant-baseline", "drop-initial-after-adjust",
+    "drop-initial-after-align", "drop-initial-before-adjust",
+    "drop-initial-before-align", "drop-initial-size", "drop-initial-value",
+    "elevation", "empty-cells", "fit", "fit-position", "flex", "flex-basis",
+    "flex-direction", "flex-flow", "flex-grow", "flex-shrink", "flex-wrap",
+    "float", "float-offset", "flow-from", "flow-into", "font", "font-feature-settings",
+    "font-family", "font-kerning", "font-language-override", "font-size", "font-size-adjust",
+    "font-stretch", "font-style", "font-synthesis", "font-variant",
+    "font-variant-alternates", "font-variant-caps", "font-variant-east-asian",
+    "font-variant-ligatures", "font-variant-numeric", "font-variant-position",
+    "font-weight", "grid", "grid-area", "grid-auto-columns", "grid-auto-flow",
+    "grid-auto-rows", "grid-column", "grid-column-end", "grid-column-gap",
+    "grid-column-start", "grid-gap", "grid-row", "grid-row-end", "grid-row-gap",
+    "grid-row-start", "grid-template", "grid-template-areas", "grid-template-columns",
+    "grid-template-rows", "hanging-punctuation", "height", "hyphens",
+    "icon", "image-orientation", "image-rendering", "image-resolution",
+    "inline-box-align", "justify-content", "left", "letter-spacing",
+    "line-break", "line-height", "line-stacking", "line-stacking-ruby",
+    "line-stacking-shift", "line-stacking-strategy", "list-style",
+    "list-style-image", "list-style-position", "list-style-type", "margin",
+    "margin-bottom", "margin-left", "margin-right", "margin-top",
+    "marks", "marquee-direction", "marquee-loop",
+    "marquee-play-count", "marquee-speed", "marquee-style", "max-height",
+    "max-width", "min-height", "min-width", "move-to", "nav-down", "nav-index",
+    "nav-left", "nav-right", "nav-up", "object-fit", "object-position",
+    "opacity", "order", "orphans", "outline",
+    "outline-color", "outline-offset", "outline-style", "outline-width",
+    "overflow", "overflow-style", "overflow-wrap", "overflow-x", "overflow-y",
+    "padding", "padding-bottom", "padding-left", "padding-right", "padding-top",
+    "page", "page-break-after", "page-break-before", "page-break-inside",
+    "page-policy", "pause", "pause-after", "pause-before", "perspective",
+    "perspective-origin", "pitch", "pitch-range", "play-during", "position",
+    "presentation-level", "punctuation-trim", "quotes", "region-break-after",
+    "region-break-before", "region-break-inside", "region-fragment",
+    "rendering-intent", "resize", "rest", "rest-after", "rest-before", "richness",
+    "right", "rotation", "rotation-point", "ruby-align", "ruby-overhang",
+    "ruby-position", "ruby-span", "shape-image-threshold", "shape-inside", "shape-margin",
+    "shape-outside", "size", "speak", "speak-as", "speak-header",
+    "speak-numeral", "speak-punctuation", "speech-rate", "stress", "string-set",
+    "tab-size", "table-layout", "target", "target-name", "target-new",
+    "target-position", "text-align", "text-align-last", "text-decoration",
+    "text-decoration-color", "text-decoration-line", "text-decoration-skip",
+    "text-decoration-style", "text-emphasis", "text-emphasis-color",
+    "text-emphasis-position", "text-emphasis-style", "text-height",
+    "text-indent", "text-justify", "text-outline", "text-overflow", "text-shadow",
+    "text-size-adjust", "text-space-collapse", "text-transform", "text-underline-position",
+    "text-wrap", "top", "transform", "transform-origin", "transform-style",
+    "transition", "transition-delay", "transition-duration",
+    "transition-property", "transition-timing-function", "unicode-bidi",
+    "user-select", "vertical-align", "visibility", "voice-balance", "voice-duration",
+    "voice-family", "voice-pitch", "voice-range", "voice-rate", "voice-stress",
+    "voice-volume", "volume", "white-space", "widows", "width", "will-change", "word-break",
+    "word-spacing", "word-wrap", "z-index",
+    // SVG-specific
+    "clip-path", "clip-rule", "mask", "enable-background", "filter", "flood-color",
+    "flood-opacity", "lighting-color", "stop-color", "stop-opacity", "pointer-events",
+    "color-interpolation", "color-interpolation-filters",
+    "color-rendering", "fill", "fill-opacity", "fill-rule", "image-rendering",
+    "marker", "marker-end", "marker-mid", "marker-start", "shape-rendering", "stroke",
+    "stroke-dasharray", "stroke-dashoffset", "stroke-linecap", "stroke-linejoin",
+    "stroke-miterlimit", "stroke-opacity", "stroke-width", "text-rendering",
+    "baseline-shift", "dominant-baseline", "glyph-orientation-horizontal",
+    "glyph-orientation-vertical", "text-anchor", "writing-mode"
+  ], propertyKeywords = keySet(propertyKeywords_);
+
+  var nonStandardPropertyKeywords_ = [
+    "scrollbar-arrow-color", "scrollbar-base-color", "scrollbar-dark-shadow-color",
+    "scrollbar-face-color", "scrollbar-highlight-color", "scrollbar-shadow-color",
+    "scrollbar-3d-light-color", "scrollbar-track-color", "shape-inside",
+    "searchfield-cancel-button", "searchfield-decoration", "searchfield-results-button",
+    "searchfield-results-decoration", "zoom"
+  ], nonStandardPropertyKeywords = keySet(nonStandardPropertyKeywords_);
+
+  var fontProperties_ = [
+    "font-family", "src", "unicode-range", "font-variant", "font-feature-settings",
+    "font-stretch", "font-weight", "font-style"
+  ], fontProperties = keySet(fontProperties_);
+
+  var counterDescriptors_ = [
+    "additive-symbols", "fallback", "negative", "pad", "prefix", "range",
+    "speak-as", "suffix", "symbols", "system"
+  ], counterDescriptors = keySet(counterDescriptors_);
+
+  var colorKeywords_ = [
+    "aliceblue", "antiquewhite", "aqua", "aquamarine", "azure", "beige",
+    "bisque", "black", "blanchedalmond", "blue", "blueviolet", "brown",
+    "burlywood", "cadetblue", "chartreuse", "chocolate", "coral", "cornflowerblue",
+    "cornsilk", "crimson", "cyan", "darkblue", "darkcyan", "darkgoldenrod",
+    "darkgray", "darkgreen", "darkkhaki", "darkmagenta", "darkolivegreen",
+    "darkorange", "darkorchid", "darkred", "darksalmon", "darkseagreen",
+    "darkslateblue", "darkslategray", "darkturquoise", "darkviolet",
+    "deeppink", "deepskyblue", "dimgray", "dodgerblue", "firebrick",
+    "floralwhite", "forestgreen", "fuchsia", "gainsboro", "ghostwhite",
+    "gold", "goldenrod", "gray", "grey", "green", "greenyellow", "honeydew",
+    "hotpink", "indianred", "indigo", "ivory", "khaki", "lavender",
+    "lavenderblush", "lawngreen", "lemonchiffon", "lightblue", "lightcoral",
+    "lightcyan", "lightgoldenrodyellow", "lightgray", "lightgreen", "lightpink",
+    "lightsalmon", "lightseagreen", "lightskyblue", "lightslategray",
+    "lightsteelblue", "lightyellow", "lime", "limegreen", "linen", "magenta",
+    "maroon", "mediumaquamarine", "mediumblue", "mediumorchid", "mediumpurple",
+    "mediumseagreen", "mediumslateblue", "mediumspringgreen", "mediumturquoise",
+    "mediumvioletred", "midnightblue", "mintcream", "mistyrose", "moccasin",
+    "navajowhite", "navy", "oldlace", "olive", "olivedrab", "orange", "orangered",
+    "orchid", "palegoldenrod", "palegreen", "paleturquoise", "palevioletred",
+    "papayawhip", "peachpuff", "peru", "pink", "plum", "powderblue",
+    "purple", "rebeccapurple", "red", "rosybrown", "royalblue", "saddlebrown",
+    "salmon", "sandybrown", "seagreen", "seashell", "sienna", "silver", "skyblue",
+    "slateblue", "slategray", "snow", "springgreen", "steelblue", "tan",
+    "teal", "thistle", "tomato", "turquoise", "violet", "wheat", "white",
+    "whitesmoke", "yellow", "yellowgreen"
+  ], colorKeywords = keySet(colorKeywords_);
+
+  var valueKeywords_ = [
+    "above", "absolute", "activeborder", "additive", "activecaption", "afar",
+    "after-white-space", "ahead", "alias", "all", "all-scroll", "alphabetic", "alternate",
+    "always", "amharic", "amharic-abegede", "antialiased", "appworkspace",
+    "arabic-indic", "armenian", "asterisks", "attr", "auto", "auto-flow", "avoid", "avoid-column", "avoid-page",
+    "avoid-region", "background", "backwards", "baseline", "below", "bidi-override", "binary",
+    "bengali", "blink", "block", "block-axis", "bold", "bolder", "border", "border-box",
+    "both", "bottom", "break", "break-all", "break-word", "bullets", "button", "button-bevel",
+    "buttonface", "buttonhighlight", "buttonshadow", "buttontext", "calc", "cambodian",
+    "capitalize", "caps-lock-indicator", "caption", "captiontext", "caret",
+    "cell", "center", "checkbox", "circle", "cjk-decimal", "cjk-earthly-branch",
+    "cjk-heavenly-stem", "cjk-ideographic", "clear", "clip", "close-quote",
+    "col-resize", "collapse", "color", "color-burn", "color-dodge", "column", "column-reverse",
+    "compact", "condensed", "contain", "content", "contents",
+    "content-box", "context-menu", "continuous", "copy", "counter", "counters", "cover", "crop",
+    "cross", "crosshair", "currentcolor", "cursive", "cyclic", "darken", "dashed", "decimal",
+    "decimal-leading-zero", "default", "default-button", "dense", "destination-atop",
+    "destination-in", "destination-out", "destination-over", "devanagari", "difference",
+    "disc", "discard", "disclosure-closed", "disclosure-open", "document",
+    "dot-dash", "dot-dot-dash",
+    "dotted", "double", "down", "e-resize", "ease", "ease-in", "ease-in-out", "ease-out",
+    "element", "ellipse", "ellipsis", "embed", "end", "ethiopic", "ethiopic-abegede",
+    "ethiopic-abegede-am-et", "ethiopic-abegede-gez", "ethiopic-abegede-ti-er",
+    "ethiopic-abegede-ti-et", "ethiopic-halehame-aa-er",
+    "ethiopic-halehame-aa-et", "ethiopic-halehame-am-et",
+    "ethiopic-halehame-gez", "ethiopic-halehame-om-et",
+    "ethiopic-halehame-sid-et", "ethiopic-halehame-so-et",
+    "ethiopic-halehame-ti-er", "ethiopic-halehame-ti-et", "ethiopic-halehame-tig",
+    "ethiopic-numeric", "ew-resize", "exclusion", "expanded", "extends", "extra-condensed",
+    "extra-expanded", "fantasy", "fast", "fill", "fixed", "flat", "flex", "flex-end", "flex-start", "footnotes",
+    "forwards", "from", "geometricPrecision", "georgian", "graytext", "grid", "groove",
+    "gujarati", "gurmukhi", "hand", "hangul", "hangul-consonant", "hard-light", "hebrew",
+    "help", "hidden", "hide", "higher", "highlight", "highlighttext",
+    "hiragana", "hiragana-iroha", "horizontal", "hsl", "hsla", "hue", "icon", "ignore",
+    "inactiveborder", "inactivecaption", "inactivecaptiontext", "infinite",
+    "infobackground", "infotext", "inherit", "initial", "inline", "inline-axis",
+    "inline-block", "inline-flex", "inline-grid", "inline-table", "inset", "inside", "intrinsic", "invert",
+    "italic", "japanese-formal", "japanese-informal", "justify", "kannada",
+    "katakana", "katakana-iroha", "keep-all", "khmer",
+    "korean-hangul-formal", "korean-hanja-formal", "korean-hanja-informal",
+    "landscape", "lao", "large", "larger", "left", "level", "lighter", "lighten",
+    "line-through", "linear", "linear-gradient", "lines", "list-item", "listbox", "listitem",
+    "local", "logical", "loud", "lower", "lower-alpha", "lower-armenian",
+    "lower-greek", "lower-hexadecimal", "lower-latin", "lower-norwegian",
+    "lower-roman", "lowercase", "ltr", "luminosity", "malayalam", "match", "matrix", "matrix3d",
+    "media-controls-background", "media-current-time-display",
+    "media-fullscreen-button", "media-mute-button", "media-play-button",
+    "media-return-to-realtime-button", "media-rewind-button",
+    "media-seek-back-button", "media-seek-forward-button", "media-slider",
+    "media-sliderthumb", "media-time-remaining-display", "media-volume-slider",
+    "media-volume-slider-container", "media-volume-sliderthumb", "medium",
+    "menu", "menulist", "menulist-button", "menulist-text",
+    "menulist-textfield", "menutext", "message-box", "middle", "min-intrinsic",
+    "mix", "mongolian", "monospace", "move", "multiple", "multiply", "myanmar", "n-resize",
+    "narrower", "ne-resize", "nesw-resize", "no-close-quote", "no-drop",
+    "no-open-quote", "no-repeat", "none", "normal", "not-allowed", "nowrap",
+    "ns-resize", "numbers", "numeric", "nw-resize", "nwse-resize", "oblique", "octal", "opacity", "open-quote",
+    "optimizeLegibility", "optimizeSpeed", "oriya", "oromo", "outset",
+    "outside", "outside-shape", "overlay", "overline", "padding", "padding-box",
+    "painted", "page", "paused", "persian", "perspective", "plus-darker", "plus-lighter",
+    "pointer", "polygon", "portrait", "pre", "pre-line", "pre-wrap", "preserve-3d",
+    "progress", "push-button", "radial-gradient", "radio", "read-only",
+    "read-write", "read-write-plaintext-only", "rectangle", "region",
+    "relative", "repeat", "repeating-linear-gradient",
+    "repeating-radial-gradient", "repeat-x", "repeat-y", "reset", "reverse",
+    "rgb", "rgba", "ridge", "right", "rotate", "rotate3d", "rotateX", "rotateY",
+    "rotateZ", "round", "row", "row-resize", "row-reverse", "rtl", "run-in", "running",
+    "s-resize", "sans-serif", "saturation", "scale", "scale3d", "scaleX", "scaleY", "scaleZ", "screen",
+    "scroll", "scrollbar", "scroll-position", "se-resize", "searchfield",
+    "searchfield-cancel-button", "searchfield-decoration",
+    "searchfield-results-button", "searchfield-results-decoration",
+    "semi-condensed", "semi-expanded", "separate", "serif", "show", "sidama",
+    "simp-chinese-formal", "simp-chinese-informal", "single",
+    "skew", "skewX", "skewY", "skip-white-space", "slide", "slider-horizontal",
+    "slider-vertical", "sliderthumb-horizontal", "sliderthumb-vertical", "slow",
+    "small", "small-caps", "small-caption", "smaller", "soft-light", "solid", "somali",
+    "source-atop", "source-in", "source-out", "source-over", "space", "space-around", "space-between", "spell-out", "square",
+    "square-button", "start", "static", "status-bar", "stretch", "stroke", "sub",
+    "subpixel-antialiased", "super", "sw-resize", "symbolic", "symbols", "system-ui", "table",
+    "table-caption", "table-cell", "table-column", "table-column-group",
+    "table-footer-group", "table-header-group", "table-row", "table-row-group",
+    "tamil",
+    "telugu", "text", "text-bottom", "text-top", "textarea", "textfield", "thai",
+    "thick", "thin", "threeddarkshadow", "threedface", "threedhighlight",
+    "threedlightshadow", "threedshadow", "tibetan", "tigre", "tigrinya-er",
+    "tigrinya-er-abegede", "tigrinya-et", "tigrinya-et-abegede", "to", "top",
+    "trad-chinese-formal", "trad-chinese-informal", "transform",
+    "translate", "translate3d", "translateX", "translateY", "translateZ",
+    "transparent", "ultra-condensed", "ultra-expanded", "underline", "unset", "up",
+    "upper-alpha", "upper-armenian", "upper-greek", "upper-hexadecimal",
+    "upper-latin", "upper-norwegian", "upper-roman", "uppercase", "urdu", "url",
+    "var", "vertical", "vertical-text", "visible", "visibleFill", "visiblePainted",
+    "visibleStroke", "visual", "w-resize", "wait", "wave", "wider",
+    "window", "windowframe", "windowtext", "words", "wrap", "wrap-reverse", "x-large", "x-small", "xor",
+    "xx-large", "xx-small"
+  ], valueKeywords = keySet(valueKeywords_);
+
+  var allWords = documentTypes_.concat(mediaTypes_).concat(mediaFeatures_).concat(mediaValueKeywords_)
+    .concat(propertyKeywords_).concat(nonStandardPropertyKeywords_).concat(colorKeywords_)
+    .concat(valueKeywords_);
+  CodeMirror.registerHelper("hintWords", "css", allWords);
+
+  function tokenCComment(stream, state) {
+    var maybeEnd = false, ch;
+    while ((ch = stream.next()) != null) {
+      if (maybeEnd && ch == "/") {
+        state.tokenize = null;
+        break;
+      }
+      maybeEnd = (ch == "*");
+    }
+    return ["comment", "comment"];
+  }
+
+  CodeMirror.defineMIME("text/css", {
+    documentTypes: documentTypes,
+    mediaTypes: mediaTypes,
+    mediaFeatures: mediaFeatures,
+    mediaValueKeywords: mediaValueKeywords,
+    propertyKeywords: propertyKeywords,
+    nonStandardPropertyKeywords: nonStandardPropertyKeywords,
+    fontProperties: fontProperties,
+    counterDescriptors: counterDescriptors,
+    colorKeywords: colorKeywords,
+    valueKeywords: valueKeywords,
+    tokenHooks: {
+      "/": function(stream, state) {
+        if (!stream.eat("*")) return false;
+        state.tokenize = tokenCComment;
+        return tokenCComment(stream, state);
+      }
+    },
+    name: "css"
+  });
+
+  CodeMirror.defineMIME("text/x-scss", {
+    mediaTypes: mediaTypes,
+    mediaFeatures: mediaFeatures,
+    mediaValueKeywords: mediaValueKeywords,
+    propertyKeywords: propertyKeywords,
+    nonStandardPropertyKeywords: nonStandardPropertyKeywords,
+    colorKeywords: colorKeywords,
+    valueKeywords: valueKeywords,
+    fontProperties: fontProperties,
+    allowNested: true,
+    lineComment: "//",
+    tokenHooks: {
+      "/": function(stream, state) {
+        if (stream.eat("/")) {
+          stream.skipToEnd();
+          return ["comment", "comment"];
+        } else if (stream.eat("*")) {
+          state.tokenize = tokenCComment;
+          return tokenCComment(stream, state);
+        } else {
+          return ["operator", "operator"];
+        }
+      },
+      ":": function(stream) {
+        if (stream.match(/\s*\{/))
+          return [null, "{"];
+        return false;
+      },
+      "$": function(stream) {
+        stream.match(/^[\w-]+/);
+        if (stream.match(/^\s*:/, false))
+          return ["variable-2", "variable-definition"];
+        return ["variable-2", "variable"];
+      },
+      "#": function(stream) {
+        if (!stream.eat("{")) return false;
+        return [null, "interpolation"];
+      }
+    },
+    name: "css",
+    helperType: "scss"
+  });
+
+  CodeMirror.defineMIME("text/x-less", {
+    mediaTypes: mediaTypes,
+    mediaFeatures: mediaFeatures,
+    mediaValueKeywords: mediaValueKeywords,
+    propertyKeywords: propertyKeywords,
+    nonStandardPropertyKeywords: nonStandardPropertyKeywords,
+    colorKeywords: colorKeywords,
+    valueKeywords: valueKeywords,
+    fontProperties: fontProperties,
+    allowNested: true,
+    lineComment: "//",
+    tokenHooks: {
+      "/": function(stream, state) {
+        if (stream.eat("/")) {
+          stream.skipToEnd();
+          return ["comment", "comment"];
+        } else if (stream.eat("*")) {
+          state.tokenize = tokenCComment;
+          return tokenCComment(stream, state);
+        } else {
+          return ["operator", "operator"];
+        }
+      },
+      "@": function(stream) {
+        if (stream.eat("{")) return [null, "interpolation"];
+        if (stream.match(/^(charset|document|font-face|import|(-(moz|ms|o|webkit)-)?keyframes|media|namespace|page|supports)\b/, false)) return false;
+        stream.eatWhile(/[\w\\\-]/);
+        if (stream.match(/^\s*:/, false))
+          return ["variable-2", "variable-definition"];
+        return ["variable-2", "variable"];
+      },
+      "&": function() {
+        return ["atom", "atom"];
+      }
+    },
+    name: "css",
+    helperType: "less"
+  });
+
+  CodeMirror.defineMIME("text/x-gss", {
+    documentTypes: documentTypes,
+    mediaTypes: mediaTypes,
+    mediaFeatures: mediaFeatures,
+    propertyKeywords: propertyKeywords,
+    nonStandardPropertyKeywords: nonStandardPropertyKeywords,
+    fontProperties: fontProperties,
+    counterDescriptors: counterDescriptors,
+    colorKeywords: colorKeywords,
+    valueKeywords: valueKeywords,
+    supportsAtComponent: true,
+    tokenHooks: {
+      "/": function(stream, state) {
+        if (!stream.eat("*")) return false;
+        state.tokenize = tokenCComment;
+        return tokenCComment(stream, state);
+      }
+    },
+    name: "css",
+    helperType: "gss"
+  });
+
+});
diff --git a/public/codemirror/mode/css/gss.html b/public/codemirror/mode/css/gss.html
new file mode 100644
index 000000000..232fe8c12
--- /dev/null
+++ b/public/codemirror/mode/css/gss.html
@@ -0,0 +1,103 @@
+
+
+CodeMirror: Closure Stylesheets (GSS) mode
+
+
+
+
+
+
+
+
+
+
+
+
+

+
Closure Stylesheets (GSS) mode

+

+    
+
+    
A mode for Closure Stylesheets (GSS).

+    
MIME type defined: text/x-gss.

+
+    
Parsing/Highlighting Tests: normal,  verbose.

+
+  

diff --git a/public/codemirror/mode/css/gss_test.js b/public/codemirror/mode/css/gss_test.js
new file mode 100644
index 000000000..d56e59280
--- /dev/null
+++ b/public/codemirror/mode/css/gss_test.js
@@ -0,0 +1,17 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  "use strict";
+
+  var mode = CodeMirror.getMode({indentUnit: 2}, "text/x-gss");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1), "gss"); }
+
+  MT("atComponent",
+     "[def @component] {",
+     "[tag foo] {",
+     "  [property color]: [keyword black];",
+     "}",
+     "}");
+
+})();
diff --git a/public/codemirror/mode/css/index.html b/public/codemirror/mode/css/index.html
new file mode 100644
index 000000000..0d85311f1
--- /dev/null
+++ b/public/codemirror/mode/css/index.html
@@ -0,0 +1,75 @@
+
+
+CodeMirror: CSS mode
+
+
+
+
+
+
+
+
+
+
+
+
+

+
CSS mode

+

+    
+
+    
MIME types defined: text/css, text/x-scss (demo), text/x-less (demo).

+
+    
Parsing/Highlighting Tests: normal,  verbose.

+
+  

diff --git a/public/codemirror/mode/css/less.html b/public/codemirror/mode/css/less.html
new file mode 100644
index 000000000..adf7427d3
--- /dev/null
+++ b/public/codemirror/mode/css/less.html
@@ -0,0 +1,152 @@
+
+
+CodeMirror: LESS mode
+
+
+
+
+
+
+
+
+
+
+

+
LESS mode

+

+    
+
+    
The LESS mode is a sub-mode of the CSS mode (defined in css.js).

+
+    
Parsing/Highlighting Tests: normal,  verbose.

+  

diff --git a/public/codemirror/mode/css/less_test.js b/public/codemirror/mode/css/less_test.js
new file mode 100644
index 000000000..dd821558b
--- /dev/null
+++ b/public/codemirror/mode/css/less_test.js
@@ -0,0 +1,54 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  "use strict";
+
+  var mode = CodeMirror.getMode({indentUnit: 2}, "text/x-less");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1), "less"); }
+
+  MT("variable",
+     "[variable-2 @base]: [atom #f04615];",
+     "[qualifier .class] {",
+     "  [property width]: [variable percentage]([number 0.5]); [comment // returns `50%`]",
+     "  [property color]: [variable saturate]([variable-2 @base], [number 5%]);",
+     "}");
+
+  MT("amp",
+     "[qualifier .child], [qualifier .sibling] {",
+     "  [qualifier .parent] [atom &] {",
+     "    [property color]: [keyword black];",
+     "  }",
+     "  [atom &] + [atom &] {",
+     "    [property color]: [keyword red];",
+     "  }",
+     "}");
+
+  MT("mixin",
+     "[qualifier .mixin] ([variable dark]; [variable-2 @color]) {",
+     "  [property color]: [atom darken]([variable-2 @color], [number 10%]);",
+     "}",
+     "[qualifier .mixin] ([variable light]; [variable-2 @color]) {",
+     "  [property color]: [atom lighten]([variable-2 @color], [number 10%]);",
+     "}",
+     "[qualifier .mixin] ([variable-2 @_]; [variable-2 @color]) {",
+     "  [property display]: [atom block];",
+     "}",
+     "[variable-2 @switch]: [variable light];",
+     "[qualifier .class] {",
+     "  [qualifier .mixin]([variable-2 @switch]; [atom #888]);",
+     "}");
+
+  MT("nest",
+     "[qualifier .one] {",
+     "  [def @media] ([property width]: [number 400px]) {",
+     "    [property font-size]: [number 1.2em];",
+     "    [def @media] [attribute print] [keyword and] [property color] {",
+     "      [property color]: [keyword blue];",
+     "    }",
+     "  }",
+     "}");
+
+
+  MT("interpolation", ".@{[variable foo]} { [property font-weight]: [atom bold]; }");
+})();
diff --git a/public/codemirror/mode/css/scss.html b/public/codemirror/mode/css/scss.html
new file mode 100644
index 000000000..f8e4d3736
--- /dev/null
+++ b/public/codemirror/mode/css/scss.html
@@ -0,0 +1,157 @@
+
+
+CodeMirror: SCSS mode
+
+
+
+
+
+
+
+
+
+

+
SCSS mode

+

+    
+
+    
The SCSS mode is a sub-mode of the CSS mode (defined in css.js).

+
+    
Parsing/Highlighting Tests: normal,  verbose.

+
+  

diff --git a/public/codemirror/mode/css/scss_test.js b/public/codemirror/mode/css/scss_test.js
new file mode 100644
index 000000000..785921b39
--- /dev/null
+++ b/public/codemirror/mode/css/scss_test.js
@@ -0,0 +1,110 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({indentUnit: 2}, "text/x-scss");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1), "scss"); }
+
+  MT('url_with_quotation',
+    "[tag foo] { [property background]:[atom url]([string test.jpg]) }");
+
+  MT('url_with_double_quotes',
+    "[tag foo] { [property background]:[atom url]([string \"test.jpg\"]) }");
+
+  MT('url_with_single_quotes',
+    "[tag foo] { [property background]:[atom url]([string \'test.jpg\']) }");
+
+  MT('string',
+    "[def @import] [string \"compass/css3\"]");
+
+  MT('important_keyword',
+    "[tag foo] { [property background]:[atom url]([string \'test.jpg\']) [keyword !important] }");
+
+  MT('variable',
+    "[variable-2 $blue]:[atom #333]");
+
+  MT('variable_as_attribute',
+    "[tag foo] { [property color]:[variable-2 $blue] }");
+
+  MT('numbers',
+    "[tag foo] { [property padding]:[number 10px] [number 10] [number 10em] [number 8in] }");
+
+  MT('number_percentage',
+    "[tag foo] { [property width]:[number 80%] }");
+
+  MT('selector',
+    "[builtin #hello][qualifier .world]{}");
+
+  MT('singleline_comment',
+    "[comment // this is a comment]");
+
+  MT('multiline_comment',
+    "[comment /*foobar*/]");
+
+  MT('attribute_with_hyphen',
+    "[tag foo] { [property font-size]:[number 10px] }");
+
+  MT('string_after_attribute',
+    "[tag foo] { [property content]:[string \"::\"] }");
+
+  MT('directives',
+    "[def @include] [qualifier .mixin]");
+
+  MT('basic_structure',
+    "[tag p] { [property background]:[keyword red]; }");
+
+  MT('nested_structure',
+    "[tag p] { [tag a] { [property color]:[keyword red]; } }");
+
+  MT('mixin',
+    "[def @mixin] [tag table-base] {}");
+
+  MT('number_without_semicolon',
+    "[tag p] {[property width]:[number 12]}",
+    "[tag a] {[property color]:[keyword red];}");
+
+  MT('atom_in_nested_block',
+    "[tag p] { [tag a] { [property color]:[atom #000]; } }");
+
+  MT('interpolation_in_property',
+    "[tag foo] { #{[variable-2 $hello]}:[number 2]; }");
+
+  MT('interpolation_in_selector',
+    "[tag foo]#{[variable-2 $hello]} { [property color]:[atom #000]; }");
+
+  MT('interpolation_error',
+    "[tag foo]#{[variable foo]} { [property color]:[atom #000]; }");
+
+  MT("divide_operator",
+    "[tag foo] { [property width]:[number 4] [operator /] [number 2] }");
+
+  MT('nested_structure_with_id_selector',
+    "[tag p] { [builtin #hello] { [property color]:[keyword red]; } }");
+
+  MT('indent_mixin',
+     "[def @mixin] [tag container] (",
+     "  [variable-2 $a]: [number 10],",
+     "  [variable-2 $b]: [number 10])",
+     "{}");
+
+  MT('indent_nested',
+     "[tag foo] {",
+     "  [tag bar] {",
+     "  }",
+     "}");
+
+  MT('indent_parentheses',
+     "[tag foo] {",
+     "  [property color]: [atom darken]([variable-2 $blue],",
+     "    [number 9%]);",
+     "}");
+
+  MT('indent_vardef',
+     "[variable-2 $name]:",
+     "  [string 'val'];",
+     "[tag tag] {",
+     "  [tag inner] {",
+     "    [property margin]: [number 3px];",
+     "  }",
+     "}");
+})();
diff --git a/public/codemirror/mode/css/test.js b/public/codemirror/mode/css/test.js
new file mode 100644
index 000000000..7a496fb09
--- /dev/null
+++ b/public/codemirror/mode/css/test.js
@@ -0,0 +1,200 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({indentUnit: 2}, "css");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)); }
+
+  // Error, because "foobarhello" is neither a known type or property, but
+  // property was expected (after "and"), and it should be in parentheses.
+  MT("atMediaUnknownType",
+     "[def @media] [attribute screen] [keyword and] [error foobarhello] { }");
+
+  // Soft error, because "foobarhello" is not a known property or type.
+  MT("atMediaUnknownProperty",
+     "[def @media] [attribute screen] [keyword and] ([error foobarhello]) { }");
+
+  // Make sure nesting works with media queries
+  MT("atMediaMaxWidthNested",
+     "[def @media] [attribute screen] [keyword and] ([property max-width]: [number 25px]) { [tag foo] { } }");
+
+  MT("atMediaFeatureValueKeyword",
+     "[def @media] ([property orientation]: [keyword landscape]) { }");
+
+  MT("atMediaUnknownFeatureValueKeyword",
+     "[def @media] ([property orientation]: [error upsidedown]) { }");
+
+  MT("tagSelector",
+     "[tag foo] { }");
+
+  MT("classSelector",
+     "[qualifier .foo-bar_hello] { }");
+
+  MT("idSelector",
+     "[builtin #foo] { [error #foo] }");
+
+  MT("tagSelectorUnclosed",
+     "[tag foo] { [property margin]: [number 0] } [tag bar] { }");
+
+  MT("tagStringNoQuotes",
+     "[tag foo] { [property font-family]: [variable hello] [variable world]; }");
+
+  MT("tagStringDouble",
+     "[tag foo] { [property font-family]: [string \"hello world\"]; }");
+
+  MT("tagStringSingle",
+     "[tag foo] { [property font-family]: [string 'hello world']; }");
+
+  MT("tagColorKeyword",
+     "[tag foo] {",
+     "  [property color]: [keyword black];",
+     "  [property color]: [keyword navy];",
+     "  [property color]: [keyword yellow];",
+     "}");
+
+  MT("tagColorHex3",
+     "[tag foo] { [property background]: [atom #fff]; }");
+
+  MT("tagColorHex4",
+     "[tag foo] { [property background]: [atom #ffff]; }");
+
+  MT("tagColorHex6",
+     "[tag foo] { [property background]: [atom #ffffff]; }");
+
+  MT("tagColorHex8",
+     "[tag foo] { [property background]: [atom #ffffffff]; }");
+
+  MT("tagColorHex5Invalid",
+     "[tag foo] { [property background]: [atom&error #fffff]; }");
+
+  MT("tagColorHexInvalid",
+     "[tag foo] { [property background]: [atom&error #ffg]; }");
+
+  MT("tagNegativeNumber",
+     "[tag foo] { [property margin]: [number -5px]; }");
+
+  MT("tagPositiveNumber",
+     "[tag foo] { [property padding]: [number 5px]; }");
+
+  MT("tagVendor",
+     "[tag foo] { [meta -foo-][property box-sizing]: [meta -foo-][atom border-box]; }");
+
+  MT("tagBogusProperty",
+     "[tag foo] { [property&error barhelloworld]: [number 0]; }");
+
+  MT("tagTwoProperties",
+     "[tag foo] { [property margin]: [number 0]; [property padding]: [number 0]; }");
+
+  MT("tagTwoPropertiesURL",
+     "[tag foo] { [property background]: [atom url]([string //example.com/foo.png]); [property padding]: [number 0]; }");
+
+  MT("indent_tagSelector",
+     "[tag strong], [tag em] {",
+     "  [property background]: [atom rgba](",
+     "    [number 255], [number 255], [number 0], [number .2]",
+     "  );",
+     "}");
+
+  MT("indent_atMedia",
+     "[def @media] {",
+     "  [tag foo] {",
+     "    [property color]:",
+     "      [keyword yellow];",
+     "  }",
+     "}");
+
+  MT("indent_comma",
+     "[tag foo] {",
+     "  [property font-family]: [variable verdana],",
+     "    [atom sans-serif];",
+     "}");
+
+  MT("indent_parentheses",
+     "[tag foo]:[variable-3 before] {",
+     "  [property background]: [atom url](",
+     "[string     blahblah]",
+     "[string     etc]",
+     "[string   ]) [keyword !important];",
+     "}");
+
+  MT("font_face",
+     "[def @font-face] {",
+     "  [property font-family]: [string 'myfont'];",
+     "  [error nonsense]: [string 'abc'];",
+     "  [property src]: [atom url]([string http://blah]),",
+     "    [atom url]([string http://foo]);",
+     "}");
+
+  MT("empty_url",
+     "[def @import] [atom url]() [attribute screen];");
+
+  MT("parens",
+     "[qualifier .foo] {",
+     "  [property background-image]: [variable fade]([atom #000], [number 20%]);",
+     "  [property border-image]: [atom linear-gradient](",
+     "    [atom to] [atom bottom],",
+     "    [variable fade]([atom #000], [number 20%]) [number 0%],",
+     "    [variable fade]([atom #000], [number 20%]) [number 100%]",
+     "  );",
+     "}");
+
+  MT("css_variable",
+     ":[variable-3 root] {",
+     "  [variable-2 --main-color]: [atom #06c];",
+     "}",
+     "[tag h1][builtin #foo] {",
+     "  [property color]: [atom var]([variable-2 --main-color]);",
+     "}");
+
+  MT("supports",
+     "[def @supports] ([keyword not] (([property text-align-last]: [atom justify]) [keyword or] ([meta -moz-][property text-align-last]: [atom justify])) {",
+     "  [property text-align-last]: [atom justify];",
+     "}");
+
+   MT("document",
+      "[def @document] [tag url]([string http://blah]),",
+      "  [tag url-prefix]([string https://]),",
+      "  [tag domain]([string blah.com]),",
+      "  [tag regexp]([string \".*blah.+\"]) {",
+      "    [builtin #id] {",
+      "      [property background-color]: [keyword white];",
+      "    }",
+      "    [tag foo] {",
+      "      [property font-family]: [variable Verdana], [atom sans-serif];",
+      "    }",
+      "}");
+
+   MT("document_url",
+      "[def @document] [tag url]([string http://blah]) { [qualifier .class] { } }");
+
+   MT("document_urlPrefix",
+      "[def @document] [tag url-prefix]([string https://]) { [builtin #id] { } }");
+
+   MT("document_domain",
+      "[def @document] [tag domain]([string blah.com]) { [tag foo] { } }");
+
+   MT("document_regexp",
+      "[def @document] [tag regexp]([string \".*blah.+\"]) { [builtin #id] { } }");
+
+   MT("counter-style",
+      "[def @counter-style] [variable binary] {",
+      "  [property system]: [atom numeric];",
+      "  [property symbols]: [number 0] [number 1];",
+      "  [property suffix]: [string \".\"];",
+      "  [property range]: [atom infinite];",
+      "  [property speak-as]: [atom numeric];",
+      "}");
+
+   MT("counter-style-additive-symbols",
+      "[def @counter-style] [variable simple-roman] {",
+      "  [property system]: [atom additive];",
+      "  [property additive-symbols]: [number 10] [variable X], [number 5] [variable V], [number 1] [variable I];",
+      "  [property range]: [number 1] [number 49];",
+      "}");
+
+   MT("counter-style-use",
+      "[tag ol][qualifier .roman] { [property list-style]: [variable simple-roman]; }");
+
+   MT("counter-style-symbols",
+      "[tag ol] { [property list-style]: [atom symbols]([atom cyclic] [string \"*\"] [string \"\\2020\"] [string \"\\2021\"] [string \"\\A7\"]); }");
+})();
diff --git a/public/codemirror/mode/cypher/cypher.js b/public/codemirror/mode/cypher/cypher.js
new file mode 100644
index 000000000..9b2490014
--- /dev/null
+++ b/public/codemirror/mode/cypher/cypher.js
@@ -0,0 +1,150 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// By the Neo4j Team and contributors.
+// https://github.com/neo4j-contrib/CodeMirror
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+  var wordRegexp = function(words) {
+    return new RegExp("^(?:" + words.join("|") + ")$", "i");
+  };
+
+  CodeMirror.defineMode("cypher", function(config) {
+    var tokenBase = function(stream/*, state*/) {
+      var ch = stream.next();
+      if (ch ==='"') {
+        stream.match(/.*?"/);
+        return "string";
+      }
+      if (ch === "'") {
+        stream.match(/.*?'/);
+        return "string";
+      }
+      if (/[{}\(\),\.;\[\]]/.test(ch)) {
+        curPunc = ch;
+        return "node";
+      } else if (ch === "/" && stream.eat("/")) {
+        stream.skipToEnd();
+        return "comment";
+      } else if (operatorChars.test(ch)) {
+        stream.eatWhile(operatorChars);
+        return null;
+      } else {
+        stream.eatWhile(/[_\w\d]/);
+        if (stream.eat(":")) {
+          stream.eatWhile(/[\w\d_\-]/);
+          return "atom";
+        }
+        var word = stream.current();
+        if (funcs.test(word)) return "builtin";
+        if (preds.test(word)) return "def";
+        if (keywords.test(word)) return "keyword";
+        return "variable";
+      }
+    };
+    var pushContext = function(state, type, col) {
+      return state.context = {
+        prev: state.context,
+        indent: state.indent,
+        col: col,
+        type: type
+      };
+    };
+    var popContext = function(state) {
+      state.indent = state.context.indent;
+      return state.context = state.context.prev;
+    };
+    var indentUnit = config.indentUnit;
+    var curPunc;
+    var funcs = wordRegexp(["abs", "acos", "allShortestPaths", "asin", "atan", "atan2", "avg", "ceil", "coalesce", "collect", "cos", "cot", "count", "degrees", "e", "endnode", "exp", "extract", "filter", "floor", "haversin", "head", "id", "keys", "labels", "last", "left", "length", "log", "log10", "lower", "ltrim", "max", "min", "node", "nodes", "percentileCont", "percentileDisc", "pi", "radians", "rand", "range", "reduce", "rel", "relationship", "relationships", "replace", "reverse", "right", "round", "rtrim", "shortestPath", "sign", "sin", "size", "split", "sqrt", "startnode", "stdev", "stdevp", "str", "substring", "sum", "tail", "tan", "timestamp", "toFloat", "toInt", "toString", "trim", "type", "upper"]);
+    var preds = wordRegexp(["all", "and", "any", "contains", "exists", "has", "in", "none", "not", "or", "single", "xor"]);
+    var keywords = wordRegexp(["as", "asc", "ascending", "assert", "by", "case", "commit", "constraint", "create", "csv", "cypher", "delete", "desc", "descending", "detach", "distinct", "drop", "else", "end", "ends", "explain", "false", "fieldterminator", "foreach", "from", "headers", "in", "index", "is", "join", "limit", "load", "match", "merge", "null", "on", "optional", "order", "periodic", "profile", "remove", "return", "scan", "set", "skip", "start", "starts", "then", "true", "union", "unique", "unwind", "using", "when", "where", "with", "call", "yield"]);
+    var operatorChars = /[*+\-<>=&|~%^]/;
+
+    return {
+      startState: function(/*base*/) {
+        return {
+          tokenize: tokenBase,
+          context: null,
+          indent: 0,
+          col: 0
+        };
+      },
+      token: function(stream, state) {
+        if (stream.sol()) {
+          if (state.context && (state.context.align == null)) {
+            state.context.align = false;
+          }
+          state.indent = stream.indentation();
+        }
+        if (stream.eatSpace()) {
+          return null;
+        }
+        var style = state.tokenize(stream, state);
+        if (style !== "comment" && state.context && (state.context.align == null) && state.context.type !== "pattern") {
+          state.context.align = true;
+        }
+        if (curPunc === "(") {
+          pushContext(state, ")", stream.column());
+        } else if (curPunc === "[") {
+          pushContext(state, "]", stream.column());
+        } else if (curPunc === "{") {
+          pushContext(state, "}", stream.column());
+        } else if (/[\]\}\)]/.test(curPunc)) {
+          while (state.context && state.context.type === "pattern") {
+            popContext(state);
+          }
+          if (state.context && curPunc === state.context.type) {
+            popContext(state);
+          }
+        } else if (curPunc === "." && state.context && state.context.type === "pattern") {
+          popContext(state);
+        } else if (/atom|string|variable/.test(style) && state.context) {
+          if (/[\}\]]/.test(state.context.type)) {
+            pushContext(state, "pattern", stream.column());
+          } else if (state.context.type === "pattern" && !state.context.align) {
+            state.context.align = true;
+            state.context.col = stream.column();
+          }
+        }
+        return style;
+      },
+      indent: function(state, textAfter) {
+        var firstChar = textAfter && textAfter.charAt(0);
+        var context = state.context;
+        if (/[\]\}]/.test(firstChar)) {
+          while (context && context.type === "pattern") {
+            context = context.prev;
+          }
+        }
+        var closing = context && firstChar === context.type;
+        if (!context) return 0;
+        if (context.type === "keywords") return CodeMirror.commands.newlineAndIndent;
+        if (context.align) return context.col + (closing ? 0 : 1);
+        return context.indent + (closing ? 0 : indentUnit);
+      }
+    };
+  });
+
+  CodeMirror.modeExtensions["cypher"] = {
+    autoFormatLineBreaks: function(text) {
+      var i, lines, reProcessedPortion;
+      var lines = text.split("\n");
+      var reProcessedPortion = /\s+\b(return|where|order by|match|with|skip|limit|create|delete|set)\b\s/g;
+      for (var i = 0; i < lines.length; i++)
+        lines[i] = lines[i].replace(reProcessedPortion, " \n$1 ").trim();
+      return lines.join("\n");
+    }
+  };
+
+  CodeMirror.defineMIME("application/x-cypher-query", "cypher");
+
+});
diff --git a/public/codemirror/mode/cypher/index.html b/public/codemirror/mode/cypher/index.html
new file mode 100644
index 000000000..b8bd75c8b
--- /dev/null
+++ b/public/codemirror/mode/cypher/index.html
@@ -0,0 +1,63 @@
+
+
+CodeMirror: Cypher Mode for CodeMirror
+
+
+
+
+
+
+
+
+
+
+

+
Cypher Mode for CodeMirror

+

+            
+            

+            
MIME types defined: 
+            application/x-cypher-query
+        

+
+
+

diff --git a/public/codemirror/mode/cypher/test.js b/public/codemirror/mode/cypher/test.js
new file mode 100644
index 000000000..76d0d0829
--- /dev/null
+++ b/public/codemirror/mode/cypher/test.js
@@ -0,0 +1,37 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({tabSize: 4, indentUnit: 2}, "cypher");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)); }
+
+  MT("unbalancedDoubledQuotedString",
+      "[string \"a'b\"][variable c]");
+
+  MT("unbalancedSingleQuotedString",
+      "[string 'a\"b'][variable c]");
+
+  MT("doubleQuotedString",
+      "[string \"a\"][variable b]");
+
+  MT("singleQuotedString",
+      "[string 'a'][variable b]");
+
+  MT("single attribute (with content)",
+      "[node {][atom a:][string 'a'][node }]");
+
+  MT("multiple attribute, singleQuotedString (with content)",
+      "[node {][atom a:][string 'a'][node ,][atom b:][string 'b'][node }]");
+
+  MT("multiple attribute, doubleQuotedString (with content)",
+      "[node {][atom a:][string \"a\"][node ,][atom b:][string \"b\"][node }]");
+
+  MT("single attribute (without content)",
+      "[node {][atom a:][string 'a'][node }]");
+
+  MT("multiple attribute, singleQuotedString (without content)",
+      "[node {][atom a:][string ''][node ,][atom b:][string ''][node }]");
+
+  MT("multiple attribute, doubleQuotedString (without content)",
+      "[node {][atom a:][string \"\"][node ,][atom b:][string \"\"][node }]");
+ })();
diff --git a/public/codemirror/mode/d/d.js b/public/codemirror/mode/d/d.js
new file mode 100644
index 000000000..c927a7e35
--- /dev/null
+++ b/public/codemirror/mode/d/d.js
@@ -0,0 +1,218 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("d", function(config, parserConfig) {
+  var indentUnit = config.indentUnit,
+      statementIndentUnit = parserConfig.statementIndentUnit || indentUnit,
+      keywords = parserConfig.keywords || {},
+      builtin = parserConfig.builtin || {},
+      blockKeywords = parserConfig.blockKeywords || {},
+      atoms = parserConfig.atoms || {},
+      hooks = parserConfig.hooks || {},
+      multiLineStrings = parserConfig.multiLineStrings;
+  var isOperatorChar = /[+\-*&%=<>!?|\/]/;
+
+  var curPunc;
+
+  function tokenBase(stream, state) {
+    var ch = stream.next();
+    if (hooks[ch]) {
+      var result = hooks[ch](stream, state);
+      if (result !== false) return result;
+    }
+    if (ch == '"' || ch == "'" || ch == "`") {
+      state.tokenize = tokenString(ch);
+      return state.tokenize(stream, state);
+    }
+    if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
+      curPunc = ch;
+      return null;
+    }
+    if (/\d/.test(ch)) {
+      stream.eatWhile(/[\w\.]/);
+      return "number";
+    }
+    if (ch == "/") {
+      if (stream.eat("+")) {
+        state.tokenize = tokenComment;
+        return tokenNestedComment(stream, state);
+      }
+      if (stream.eat("*")) {
+        state.tokenize = tokenComment;
+        return tokenComment(stream, state);
+      }
+      if (stream.eat("/")) {
+        stream.skipToEnd();
+        return "comment";
+      }
+    }
+    if (isOperatorChar.test(ch)) {
+      stream.eatWhile(isOperatorChar);
+      return "operator";
+    }
+    stream.eatWhile(/[\w\$_\xa1-\uffff]/);
+    var cur = stream.current();
+    if (keywords.propertyIsEnumerable(cur)) {
+      if (blockKeywords.propertyIsEnumerable(cur)) curPunc = "newstatement";
+      return "keyword";
+    }
+    if (builtin.propertyIsEnumerable(cur)) {
+      if (blockKeywords.propertyIsEnumerable(cur)) curPunc = "newstatement";
+      return "builtin";
+    }
+    if (atoms.propertyIsEnumerable(cur)) return "atom";
+    return "variable";
+  }
+
+  function tokenString(quote) {
+    return function(stream, state) {
+      var escaped = false, next, end = false;
+      while ((next = stream.next()) != null) {
+        if (next == quote && !escaped) {end = true; break;}
+        escaped = !escaped && next == "\\";
+      }
+      if (end || !(escaped || multiLineStrings))
+        state.tokenize = null;
+      return "string";
+    };
+  }
+
+  function tokenComment(stream, state) {
+    var maybeEnd = false, ch;
+    while (ch = stream.next()) {
+      if (ch == "/" && maybeEnd) {
+        state.tokenize = null;
+        break;
+      }
+      maybeEnd = (ch == "*");
+    }
+    return "comment";
+  }
+
+  function tokenNestedComment(stream, state) {
+    var maybeEnd = false, ch;
+    while (ch = stream.next()) {
+      if (ch == "/" && maybeEnd) {
+        state.tokenize = null;
+        break;
+      }
+      maybeEnd = (ch == "+");
+    }
+    return "comment";
+  }
+
+  function Context(indented, column, type, align, prev) {
+    this.indented = indented;
+    this.column = column;
+    this.type = type;
+    this.align = align;
+    this.prev = prev;
+  }
+  function pushContext(state, col, type) {
+    var indent = state.indented;
+    if (state.context && state.context.type == "statement")
+      indent = state.context.indented;
+    return state.context = new Context(indent, col, type, null, state.context);
+  }
+  function popContext(state) {
+    var t = state.context.type;
+    if (t == ")" || t == "]" || t == "}")
+      state.indented = state.context.indented;
+    return state.context = state.context.prev;
+  }
+
+  // Interface
+
+  return {
+    startState: function(basecolumn) {
+      return {
+        tokenize: null,
+        context: new Context((basecolumn || 0) - indentUnit, 0, "top", false),
+        indented: 0,
+        startOfLine: true
+      };
+    },
+
+    token: function(stream, state) {
+      var ctx = state.context;
+      if (stream.sol()) {
+        if (ctx.align == null) ctx.align = false;
+        state.indented = stream.indentation();
+        state.startOfLine = true;
+      }
+      if (stream.eatSpace()) return null;
+      curPunc = null;
+      var style = (state.tokenize || tokenBase)(stream, state);
+      if (style == "comment" || style == "meta") return style;
+      if (ctx.align == null) ctx.align = true;
+
+      if ((curPunc == ";" || curPunc == ":" || curPunc == ",") && ctx.type == "statement") popContext(state);
+      else if (curPunc == "{") pushContext(state, stream.column(), "}");
+      else if (curPunc == "[") pushContext(state, stream.column(), "]");
+      else if (curPunc == "(") pushContext(state, stream.column(), ")");
+      else if (curPunc == "}") {
+        while (ctx.type == "statement") ctx = popContext(state);
+        if (ctx.type == "}") ctx = popContext(state);
+        while (ctx.type == "statement") ctx = popContext(state);
+      }
+      else if (curPunc == ctx.type) popContext(state);
+      else if (((ctx.type == "}" || ctx.type == "top") && curPunc != ';') || (ctx.type == "statement" && curPunc == "newstatement"))
+        pushContext(state, stream.column(), "statement");
+      state.startOfLine = false;
+      return style;
+    },
+
+    indent: function(state, textAfter) {
+      if (state.tokenize != tokenBase && state.tokenize != null) return CodeMirror.Pass;
+      var ctx = state.context, firstChar = textAfter && textAfter.charAt(0);
+      if (ctx.type == "statement" && firstChar == "}") ctx = ctx.prev;
+      var closing = firstChar == ctx.type;
+      if (ctx.type == "statement") return ctx.indented + (firstChar == "{" ? 0 : statementIndentUnit);
+      else if (ctx.align) return ctx.column + (closing ? 0 : 1);
+      else return ctx.indented + (closing ? 0 : indentUnit);
+    },
+
+    electricChars: "{}"
+  };
+});
+
+  function words(str) {
+    var obj = {}, words = str.split(" ");
+    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+    return obj;
+  }
+
+  var blockKeywords = "body catch class do else enum for foreach foreach_reverse if in interface mixin " +
+                      "out scope struct switch try union unittest version while with";
+
+  CodeMirror.defineMIME("text/x-d", {
+    name: "d",
+    keywords: words("abstract alias align asm assert auto break case cast cdouble cent cfloat const continue " +
+                    "debug default delegate delete deprecated export extern final finally function goto immutable " +
+                    "import inout invariant is lazy macro module new nothrow override package pragma private " +
+                    "protected public pure ref return shared short static super synchronized template this " +
+                    "throw typedef typeid typeof volatile __FILE__ __LINE__ __gshared __traits __vector __parameters " +
+                    blockKeywords),
+    blockKeywords: words(blockKeywords),
+    builtin: words("bool byte char creal dchar double float idouble ifloat int ireal long real short ubyte " +
+                   "ucent uint ulong ushort wchar wstring void size_t sizediff_t"),
+    atoms: words("exit failure success true false null"),
+    hooks: {
+      "@": function(stream, _state) {
+        stream.eatWhile(/[\w\$_]/);
+        return "meta";
+      }
+    }
+  });
+
+});
diff --git a/public/codemirror/mode/d/index.html b/public/codemirror/mode/d/index.html
new file mode 100644
index 000000000..08cabd8a2
--- /dev/null
+++ b/public/codemirror/mode/d/index.html
@@ -0,0 +1,273 @@
+
+
+CodeMirror: D mode
+
+
+
+
+
+
+
+
+
+
+

+
D mode

+

+
+    
+
+    
Simple mode that handle D-Syntax (DLang Homepage).

+
+    
MIME types defined: text/x-d
+    .

+  

diff --git a/public/codemirror/mode/dart/dart.js b/public/codemirror/mode/dart/dart.js
new file mode 100644
index 000000000..8d383a95e
--- /dev/null
+++ b/public/codemirror/mode/dart/dart.js
@@ -0,0 +1,157 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../clike/clike"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../clike/clike"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  var keywords = ("this super static final const abstract class extends external factory " +
+    "implements get native operator set typedef with enum throw rethrow " +
+    "assert break case continue default in return new deferred async await " +
+    "try catch finally do else for if switch while import library export " +
+    "part of show hide is as").split(" ");
+  var blockKeywords = "try catch finally do else for if switch while".split(" ");
+  var atoms = "true false null".split(" ");
+  var builtins = "void bool num int double dynamic var String".split(" ");
+
+  function set(words) {
+    var obj = {};
+    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+    return obj;
+  }
+
+  function pushInterpolationStack(state) {
+    (state.interpolationStack || (state.interpolationStack = [])).push(state.tokenize);
+  }
+
+  function popInterpolationStack(state) {
+    return (state.interpolationStack || (state.interpolationStack = [])).pop();
+  }
+
+  function sizeInterpolationStack(state) {
+    return state.interpolationStack ? state.interpolationStack.length : 0;
+  }
+
+  CodeMirror.defineMIME("application/dart", {
+    name: "clike",
+    keywords: set(keywords),
+    blockKeywords: set(blockKeywords),
+    builtin: set(builtins),
+    atoms: set(atoms),
+    hooks: {
+      "@": function(stream) {
+        stream.eatWhile(/[\w\$_\.]/);
+        return "meta";
+      },
+
+      // custom string handling to deal with triple-quoted strings and string interpolation
+      "'": function(stream, state) {
+        return tokenString("'", stream, state, false);
+      },
+      "\"": function(stream, state) {
+        return tokenString("\"", stream, state, false);
+      },
+      "r": function(stream, state) {
+        var peek = stream.peek();
+        if (peek == "'" || peek == "\"") {
+          return tokenString(stream.next(), stream, state, true);
+        }
+        return false;
+      },
+
+      "}": function(_stream, state) {
+        // "}" is end of interpolation, if interpolation stack is non-empty
+        if (sizeInterpolationStack(state) > 0) {
+          state.tokenize = popInterpolationStack(state);
+          return null;
+        }
+        return false;
+      },
+
+      "/": function(stream, state) {
+        if (!stream.eat("*")) return false
+        state.tokenize = tokenNestedComment(1)
+        return state.tokenize(stream, state)
+      }
+    }
+  });
+
+  function tokenString(quote, stream, state, raw) {
+    var tripleQuoted = false;
+    if (stream.eat(quote)) {
+      if (stream.eat(quote)) tripleQuoted = true;
+      else return "string"; //empty string
+    }
+    function tokenStringHelper(stream, state) {
+      var escaped = false;
+      while (!stream.eol()) {
+        if (!raw && !escaped && stream.peek() == "$") {
+          pushInterpolationStack(state);
+          state.tokenize = tokenInterpolation;
+          return "string";
+        }
+        var next = stream.next();
+        if (next == quote && !escaped && (!tripleQuoted || stream.match(quote + quote))) {
+          state.tokenize = null;
+          break;
+        }
+        escaped = !raw && !escaped && next == "\\";
+      }
+      return "string";
+    }
+    state.tokenize = tokenStringHelper;
+    return tokenStringHelper(stream, state);
+  }
+
+  function tokenInterpolation(stream, state) {
+    stream.eat("$");
+    if (stream.eat("{")) {
+      // let clike handle the content of ${...},
+      // we take over again when "}" appears (see hooks).
+      state.tokenize = null;
+    } else {
+      state.tokenize = tokenInterpolationIdentifier;
+    }
+    return null;
+  }
+
+  function tokenInterpolationIdentifier(stream, state) {
+    stream.eatWhile(/[\w_]/);
+    state.tokenize = popInterpolationStack(state);
+    return "variable";
+  }
+
+  function tokenNestedComment(depth) {
+    return function (stream, state) {
+      var ch
+      while (ch = stream.next()) {
+        if (ch == "*" && stream.eat("/")) {
+          if (depth == 1) {
+            state.tokenize = null
+            break
+          } else {
+            state.tokenize = tokenNestedComment(depth - 1)
+            return state.tokenize(stream, state)
+          }
+        } else if (ch == "/" && stream.eat("*")) {
+          state.tokenize = tokenNestedComment(depth + 1)
+          return state.tokenize(stream, state)
+        }
+      }
+      return "comment"
+    }
+  }
+
+  CodeMirror.registerHelper("hintWords", "application/dart", keywords.concat(atoms).concat(builtins));
+
+  // This is needed to make loading through meta.js work.
+  CodeMirror.defineMode("dart", function(conf) {
+    return CodeMirror.getMode(conf, "application/dart");
+  }, "clike");
+});
diff --git a/public/codemirror/mode/dart/index.html b/public/codemirror/mode/dart/index.html
new file mode 100644
index 000000000..e79da5a8b
--- /dev/null
+++ b/public/codemirror/mode/dart/index.html
@@ -0,0 +1,71 @@
+
+
+CodeMirror: Dart mode
+
+
+
+
+
+
+
+
+
+

+
Dart mode

+

+
+

+
+
+
+

diff --git a/public/codemirror/mode/diff/diff.js b/public/codemirror/mode/diff/diff.js
new file mode 100644
index 000000000..fe0305e7b
--- /dev/null
+++ b/public/codemirror/mode/diff/diff.js
@@ -0,0 +1,47 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("diff", function() {
+
+  var TOKEN_NAMES = {
+    '+': 'positive',
+    '-': 'negative',
+    '@': 'meta'
+  };
+
+  return {
+    token: function(stream) {
+      var tw_pos = stream.string.search(/[\t ]+?$/);
+
+      if (!stream.sol() || tw_pos === 0) {
+        stream.skipToEnd();
+        return ("error " + (
+          TOKEN_NAMES[stream.string.charAt(0)] || '')).replace(/ $/, '');
+      }
+
+      var token_name = TOKEN_NAMES[stream.peek()] || stream.skipToEnd();
+
+      if (tw_pos === -1) {
+        stream.skipToEnd();
+      } else {
+        stream.pos = tw_pos;
+      }
+
+      return token_name;
+    }
+  };
+});
+
+CodeMirror.defineMIME("text/x-diff", "diff");
+
+});
diff --git a/public/codemirror/mode/diff/index.html b/public/codemirror/mode/diff/index.html
new file mode 100644
index 000000000..0af611fa4
--- /dev/null
+++ b/public/codemirror/mode/diff/index.html
@@ -0,0 +1,117 @@
+
+
+CodeMirror: Diff mode
+
+
+
+
+
+
+
+
+
+

+
Diff mode

+

+    
+
+    
MIME types defined: text/x-diff.

+
+  

diff --git a/public/codemirror/mode/django/django.js b/public/codemirror/mode/django/django.js
new file mode 100644
index 000000000..7b4ef3b56
--- /dev/null
+++ b/public/codemirror/mode/django/django.js
@@ -0,0 +1,356 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../htmlmixed/htmlmixed"),
+        require("../../addon/mode/overlay"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../htmlmixed/htmlmixed",
+            "../../addon/mode/overlay"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineMode("django:inner", function() {
+    var keywords = ["block", "endblock", "for", "endfor", "true", "false", "filter", "endfilter",
+                    "loop", "none", "self", "super", "if", "elif", "endif", "as", "else", "import",
+                    "with", "endwith", "without", "context", "ifequal", "endifequal", "ifnotequal",
+                    "endifnotequal", "extends", "include", "load", "comment", "endcomment",
+                    "empty", "url", "static", "trans", "blocktrans", "endblocktrans", "now",
+                    "regroup", "lorem", "ifchanged", "endifchanged", "firstof", "debug", "cycle",
+                    "csrf_token", "autoescape", "endautoescape", "spaceless", "endspaceless",
+                    "ssi", "templatetag", "verbatim", "endverbatim", "widthratio"],
+        filters = ["add", "addslashes", "capfirst", "center", "cut", "date",
+                   "default", "default_if_none", "dictsort",
+                   "dictsortreversed", "divisibleby", "escape", "escapejs",
+                   "filesizeformat", "first", "floatformat", "force_escape",
+                   "get_digit", "iriencode", "join", "last", "length",
+                   "length_is", "linebreaks", "linebreaksbr", "linenumbers",
+                   "ljust", "lower", "make_list", "phone2numeric", "pluralize",
+                   "pprint", "random", "removetags", "rjust", "safe",
+                   "safeseq", "slice", "slugify", "stringformat", "striptags",
+                   "time", "timesince", "timeuntil", "title", "truncatechars",
+                   "truncatechars_html", "truncatewords", "truncatewords_html",
+                   "unordered_list", "upper", "urlencode", "urlize",
+                   "urlizetrunc", "wordcount", "wordwrap", "yesno"],
+        operators = ["==", "!=", "<", ">", "<=", ">="],
+        wordOperators = ["in", "not", "or", "and"];
+
+    keywords = new RegExp("^\\b(" + keywords.join("|") + ")\\b");
+    filters = new RegExp("^\\b(" + filters.join("|") + ")\\b");
+    operators = new RegExp("^\\b(" + operators.join("|") + ")\\b");
+    wordOperators = new RegExp("^\\b(" + wordOperators.join("|") + ")\\b");
+
+    // We have to return "null" instead of null, in order to avoid string
+    // styling as the default, when using Django templates inside HTML
+    // element attributes
+    function tokenBase (stream, state) {
+      // Attempt to identify a variable, template or comment tag respectively
+      if (stream.match("{{")) {
+        state.tokenize = inVariable;
+        return "tag";
+      } else if (stream.match("{%")) {
+        state.tokenize = inTag;
+        return "tag";
+      } else if (stream.match("{#")) {
+        state.tokenize = inComment;
+        return "comment";
+      }
+
+      // Ignore completely any stream series that do not match the
+      // Django template opening tags.
+      while (stream.next() != null && !stream.match(/\{[{%#]/, false)) {}
+      return null;
+    }
+
+    // A string can be included in either single or double quotes (this is
+    // the delimiter). Mark everything as a string until the start delimiter
+    // occurs again.
+    function inString (delimiter, previousTokenizer) {
+      return function (stream, state) {
+        if (!state.escapeNext && stream.eat(delimiter)) {
+          state.tokenize = previousTokenizer;
+        } else {
+          if (state.escapeNext) {
+            state.escapeNext = false;
+          }
+
+          var ch = stream.next();
+
+          // Take into account the backslash for escaping characters, such as
+          // the string delimiter.
+          if (ch == "\\") {
+            state.escapeNext = true;
+          }
+        }
+
+        return "string";
+      };
+    }
+
+    // Apply Django template variable syntax highlighting
+    function inVariable (stream, state) {
+      // Attempt to match a dot that precedes a property
+      if (state.waitDot) {
+        state.waitDot = false;
+
+        if (stream.peek() != ".") {
+          return "null";
+        }
+
+        // Dot followed by a non-word character should be considered an error.
+        if (stream.match(/\.\W+/)) {
+          return "error";
+        } else if (stream.eat(".")) {
+          state.waitProperty = true;
+          return "null";
+        } else {
+          throw Error ("Unexpected error while waiting for property.");
+        }
+      }
+
+      // Attempt to match a pipe that precedes a filter
+      if (state.waitPipe) {
+        state.waitPipe = false;
+
+        if (stream.peek() != "|") {
+          return "null";
+        }
+
+        // Pipe followed by a non-word character should be considered an error.
+        if (stream.match(/\.\W+/)) {
+          return "error";
+        } else if (stream.eat("|")) {
+          state.waitFilter = true;
+          return "null";
+        } else {
+          throw Error ("Unexpected error while waiting for filter.");
+        }
+      }
+
+      // Highlight properties
+      if (state.waitProperty) {
+        state.waitProperty = false;
+        if (stream.match(/\b(\w+)\b/)) {
+          state.waitDot = true;  // A property can be followed by another property
+          state.waitPipe = true;  // A property can be followed by a filter
+          return "property";
+        }
+      }
+
+      // Highlight filters
+      if (state.waitFilter) {
+          state.waitFilter = false;
+        if (stream.match(filters)) {
+          return "variable-2";
+        }
+      }
+
+      // Ignore all white spaces
+      if (stream.eatSpace()) {
+        state.waitProperty = false;
+        return "null";
+      }
+
+      // Identify numbers
+      if (stream.match(/\b\d+(\.\d+)?\b/)) {
+        return "number";
+      }
+
+      // Identify strings
+      if (stream.match("'")) {
+        state.tokenize = inString("'", state.tokenize);
+        return "string";
+      } else if (stream.match('"')) {
+        state.tokenize = inString('"', state.tokenize);
+        return "string";
+      }
+
+      // Attempt to find the variable
+      if (stream.match(/\b(\w+)\b/) && !state.foundVariable) {
+        state.waitDot = true;
+        state.waitPipe = true;  // A property can be followed by a filter
+        return "variable";
+      }
+
+      // If found closing tag reset
+      if (stream.match("}}")) {
+        state.waitProperty = null;
+        state.waitFilter = null;
+        state.waitDot = null;
+        state.waitPipe = null;
+        state.tokenize = tokenBase;
+        return "tag";
+      }
+
+      // If nothing was found, advance to the next character
+      stream.next();
+      return "null";
+    }
+
+    function inTag (stream, state) {
+      // Attempt to match a dot that precedes a property
+      if (state.waitDot) {
+        state.waitDot = false;
+
+        if (stream.peek() != ".") {
+          return "null";
+        }
+
+        // Dot followed by a non-word character should be considered an error.
+        if (stream.match(/\.\W+/)) {
+          return "error";
+        } else if (stream.eat(".")) {
+          state.waitProperty = true;
+          return "null";
+        } else {
+          throw Error ("Unexpected error while waiting for property.");
+        }
+      }
+
+      // Attempt to match a pipe that precedes a filter
+      if (state.waitPipe) {
+        state.waitPipe = false;
+
+        if (stream.peek() != "|") {
+          return "null";
+        }
+
+        // Pipe followed by a non-word character should be considered an error.
+        if (stream.match(/\.\W+/)) {
+          return "error";
+        } else if (stream.eat("|")) {
+          state.waitFilter = true;
+          return "null";
+        } else {
+          throw Error ("Unexpected error while waiting for filter.");
+        }
+      }
+
+      // Highlight properties
+      if (state.waitProperty) {
+        state.waitProperty = false;
+        if (stream.match(/\b(\w+)\b/)) {
+          state.waitDot = true;  // A property can be followed by another property
+          state.waitPipe = true;  // A property can be followed by a filter
+          return "property";
+        }
+      }
+
+      // Highlight filters
+      if (state.waitFilter) {
+          state.waitFilter = false;
+        if (stream.match(filters)) {
+          return "variable-2";
+        }
+      }
+
+      // Ignore all white spaces
+      if (stream.eatSpace()) {
+        state.waitProperty = false;
+        return "null";
+      }
+
+      // Identify numbers
+      if (stream.match(/\b\d+(\.\d+)?\b/)) {
+        return "number";
+      }
+
+      // Identify strings
+      if (stream.match("'")) {
+        state.tokenize = inString("'", state.tokenize);
+        return "string";
+      } else if (stream.match('"')) {
+        state.tokenize = inString('"', state.tokenize);
+        return "string";
+      }
+
+      // Attempt to match an operator
+      if (stream.match(operators)) {
+        return "operator";
+      }
+
+      // Attempt to match a word operator
+      if (stream.match(wordOperators)) {
+        return "keyword";
+      }
+
+      // Attempt to match a keyword
+      var keywordMatch = stream.match(keywords);
+      if (keywordMatch) {
+        if (keywordMatch[0] == "comment") {
+          state.blockCommentTag = true;
+        }
+        return "keyword";
+      }
+
+      // Attempt to match a variable
+      if (stream.match(/\b(\w+)\b/)) {
+        state.waitDot = true;
+        state.waitPipe = true;  // A property can be followed by a filter
+        return "variable";
+      }
+
+      // If found closing tag reset
+      if (stream.match("%}")) {
+        state.waitProperty = null;
+        state.waitFilter = null;
+        state.waitDot = null;
+        state.waitPipe = null;
+        // If the tag that closes is a block comment tag, we want to mark the
+        // following code as comment, until the tag closes.
+        if (state.blockCommentTag) {
+          state.blockCommentTag = false;  // Release the "lock"
+          state.tokenize = inBlockComment;
+        } else {
+          state.tokenize = tokenBase;
+        }
+        return "tag";
+      }
+
+      // If nothing was found, advance to the next character
+      stream.next();
+      return "null";
+    }
+
+    // Mark everything as comment inside the tag and the tag itself.
+    function inComment (stream, state) {
+      if (stream.match(/^.*?#\}/)) state.tokenize = tokenBase
+      else stream.skipToEnd()
+      return "comment";
+    }
+
+    // Mark everything as a comment until the `blockcomment` tag closes.
+    function inBlockComment (stream, state) {
+      if (stream.match(/\{%\s*endcomment\s*%\}/, false)) {
+        state.tokenize = inTag;
+        stream.match("{%");
+        return "tag";
+      } else {
+        stream.next();
+        return "comment";
+      }
+    }
+
+    return {
+      startState: function () {
+        return {tokenize: tokenBase};
+      },
+      token: function (stream, state) {
+        return state.tokenize(stream, state);
+      },
+      blockCommentStart: "{% comment %}",
+      blockCommentEnd: "{% endcomment %}"
+    };
+  });
+
+  CodeMirror.defineMode("django", function(config) {
+    var htmlBase = CodeMirror.getMode(config, "text/html");
+    var djangoInner = CodeMirror.getMode(config, "django:inner");
+    return CodeMirror.overlayMode(htmlBase, djangoInner);
+  });
+
+  CodeMirror.defineMIME("text/x-django", "django");
+});
diff --git a/public/codemirror/mode/django/index.html b/public/codemirror/mode/django/index.html
new file mode 100644
index 000000000..41ea07c91
--- /dev/null
+++ b/public/codemirror/mode/django/index.html
@@ -0,0 +1,73 @@
+
+
+CodeMirror: Django template mode
+
+
+
+
+
+
+
+
+
+
+
+
+
+

+
Django template mode

+

+
+    
+
+    
Mode for HTML with embedded Django template markup.

+
+    
MIME types defined: text/x-django

+  

diff --git a/public/codemirror/mode/dockerfile/dockerfile.js b/public/codemirror/mode/dockerfile/dockerfile.js
new file mode 100644
index 000000000..4419009af
--- /dev/null
+++ b/public/codemirror/mode/dockerfile/dockerfile.js
@@ -0,0 +1,79 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../../addon/mode/simple"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../../addon/mode/simple"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  // Collect all Dockerfile directives
+  var instructions = ["from", "maintainer", "run", "cmd", "expose", "env",
+                      "add", "copy", "entrypoint", "volume", "user",
+                      "workdir", "onbuild"],
+      instructionRegex = "(" + instructions.join('|') + ")",
+      instructionOnlyLine = new RegExp(instructionRegex + "\\s*$", "i"),
+      instructionWithArguments = new RegExp(instructionRegex + "(\\s+)", "i");
+
+  CodeMirror.defineSimpleMode("dockerfile", {
+    start: [
+      // Block comment: This is a line starting with a comment
+      {
+        regex: /#.*$/,
+        token: "comment"
+      },
+      // Highlight an instruction without any arguments (for convenience)
+      {
+        regex: instructionOnlyLine,
+        token: "variable-2"
+      },
+      // Highlight an instruction followed by arguments
+      {
+        regex: instructionWithArguments,
+        token: ["variable-2", null],
+        next: "arguments"
+      },
+      {
+        regex: /./,
+        token: null
+      }
+    ],
+    arguments: [
+      {
+        // Line comment without instruction arguments is an error
+        regex: /#.*$/,
+        token: "error",
+        next: "start"
+      },
+      {
+        regex: /[^#]+\\$/,
+        token: null
+      },
+      {
+        // Match everything except for the inline comment
+        regex: /[^#]+/,
+        token: null,
+        next: "start"
+      },
+      {
+        regex: /$/,
+        token: null,
+        next: "start"
+      },
+      // Fail safe return to start
+      {
+        token: null,
+        next: "start"
+      }
+    ],
+      meta: {
+          lineComment: "#"
+      }
+  });
+
+  CodeMirror.defineMIME("text/x-dockerfile", "dockerfile");
+});
diff --git a/public/codemirror/mode/dockerfile/index.html b/public/codemirror/mode/dockerfile/index.html
new file mode 100644
index 000000000..a31759bce
--- /dev/null
+++ b/public/codemirror/mode/dockerfile/index.html
@@ -0,0 +1,73 @@
+
+
+CodeMirror: Dockerfile mode
+
+
+
+
+
+
+
+
+
+
+

+
Dockerfile mode

+

+
+    
+
+    
Dockerfile syntax highlighting for CodeMirror. Depends on
+    the simplemode addon.

+
+    
MIME types defined: text/x-dockerfile

+  

diff --git a/public/codemirror/mode/dtd/dtd.js b/public/codemirror/mode/dtd/dtd.js
new file mode 100644
index 000000000..52d76ee11
--- /dev/null
+++ b/public/codemirror/mode/dtd/dtd.js
@@ -0,0 +1,142 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+/*
+  DTD mode
+  Ported to CodeMirror by Peter Kroon 
+  Report bugs/issues here: https://github.com/codemirror/CodeMirror/issues
+  GitHub: @peterkroon
+*/
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("dtd", function(config) {
+  var indentUnit = config.indentUnit, type;
+  function ret(style, tp) {type = tp; return style;}
+
+  function tokenBase(stream, state) {
+    var ch = stream.next();
+
+    if (ch == "<" && stream.eat("!") ) {
+      if (stream.eatWhile(/[\-]/)) {
+        state.tokenize = tokenSGMLComment;
+        return tokenSGMLComment(stream, state);
+      } else if (stream.eatWhile(/[\w]/)) return ret("keyword", "doindent");
+    } else if (ch == "<" && stream.eat("?")) { //xml declaration
+      state.tokenize = inBlock("meta", "?>");
+      return ret("meta", ch);
+    } else if (ch == "#" && stream.eatWhile(/[\w]/)) return ret("atom", "tag");
+    else if (ch == "|") return ret("keyword", "seperator");
+    else if (ch.match(/[\(\)\[\]\-\.,\+\?>]/)) return ret(null, ch);//if(ch === ">") return ret(null, "endtag"); else
+    else if (ch.match(/[\[\]]/)) return ret("rule", ch);
+    else if (ch == "\"" || ch == "'") {
+      state.tokenize = tokenString(ch);
+      return state.tokenize(stream, state);
+    } else if (stream.eatWhile(/[a-zA-Z\?\+\d]/)) {
+      var sc = stream.current();
+      if( sc.substr(sc.length-1,sc.length).match(/\?|\+/) !== null )stream.backUp(1);
+      return ret("tag", "tag");
+    } else if (ch == "%" || ch == "*" ) return ret("number", "number");
+    else {
+      stream.eatWhile(/[\w\\\-_%.{,]/);
+      return ret(null, null);
+    }
+  }
+
+  function tokenSGMLComment(stream, state) {
+    var dashes = 0, ch;
+    while ((ch = stream.next()) != null) {
+      if (dashes >= 2 && ch == ">") {
+        state.tokenize = tokenBase;
+        break;
+      }
+      dashes = (ch == "-") ? dashes + 1 : 0;
+    }
+    return ret("comment", "comment");
+  }
+
+  function tokenString(quote) {
+    return function(stream, state) {
+      var escaped = false, ch;
+      while ((ch = stream.next()) != null) {
+        if (ch == quote && !escaped) {
+          state.tokenize = tokenBase;
+          break;
+        }
+        escaped = !escaped && ch == "\\";
+      }
+      return ret("string", "tag");
+    };
+  }
+
+  function inBlock(style, terminator) {
+    return function(stream, state) {
+      while (!stream.eol()) {
+        if (stream.match(terminator)) {
+          state.tokenize = tokenBase;
+          break;
+        }
+        stream.next();
+      }
+      return style;
+    };
+  }
+
+  return {
+    startState: function(base) {
+      return {tokenize: tokenBase,
+              baseIndent: base || 0,
+              stack: []};
+    },
+
+    token: function(stream, state) {
+      if (stream.eatSpace()) return null;
+      var style = state.tokenize(stream, state);
+
+      var context = state.stack[state.stack.length-1];
+      if (stream.current() == "[" || type === "doindent" || type == "[") state.stack.push("rule");
+      else if (type === "endtag") state.stack[state.stack.length-1] = "endtag";
+      else if (stream.current() == "]" || type == "]" || (type == ">" && context == "rule")) state.stack.pop();
+      else if (type == "[") state.stack.push("[");
+      return style;
+    },
+
+    indent: function(state, textAfter) {
+      var n = state.stack.length;
+
+      if( textAfter.match(/\]\s+|\]/) )n=n-1;
+      else if(textAfter.substr(textAfter.length-1, textAfter.length) === ">"){
+        if(textAfter.substr(0,1) === "<") {}
+        else if( type == "doindent" && textAfter.length > 1 ) {}
+        else if( type == "doindent")n--;
+        else if( type == ">" && textAfter.length > 1) {}
+        else if( type == "tag" && textAfter !== ">") {}
+        else if( type == "tag" && state.stack[state.stack.length-1] == "rule")n--;
+        else if( type == "tag")n++;
+        else if( textAfter === ">" && state.stack[state.stack.length-1] == "rule" && type === ">")n--;
+        else if( textAfter === ">" && state.stack[state.stack.length-1] == "rule") {}
+        else if( textAfter.substr(0,1) !== "<" && textAfter.substr(0,1) === ">" )n=n-1;
+        else if( textAfter === ">") {}
+        else n=n-1;
+        //over rule them all
+        if(type == null || type == "]")n--;
+      }
+
+      return state.baseIndent + n * indentUnit;
+    },
+
+    electricChars: "]>"
+  };
+});
+
+CodeMirror.defineMIME("application/xml-dtd", "dtd");
+
+});
diff --git a/public/codemirror/mode/dtd/index.html b/public/codemirror/mode/dtd/index.html
new file mode 100644
index 000000000..e6798a748
--- /dev/null
+++ b/public/codemirror/mode/dtd/index.html
@@ -0,0 +1,89 @@
+
+
+CodeMirror: DTD mode
+
+
+
+
+
+
+
+
+
+

+
DTD mode

+

+    
+
+    
MIME types defined: application/xml-dtd.

+  

diff --git a/public/codemirror/mode/dylan/dylan.js b/public/codemirror/mode/dylan/dylan.js
new file mode 100644
index 000000000..0acc1a388
--- /dev/null
+++ b/public/codemirror/mode/dylan/dylan.js
@@ -0,0 +1,352 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+function forEach(arr, f) {
+  for (var i = 0; i < arr.length; i++) f(arr[i], i)
+}
+function some(arr, f) {
+  for (var i = 0; i < arr.length; i++) if (f(arr[i], i)) return true
+  return false
+}
+
+CodeMirror.defineMode("dylan", function(_config) {
+  // Words
+  var words = {
+    // Words that introduce unnamed definitions like "define interface"
+    unnamedDefinition: ["interface"],
+
+    // Words that introduce simple named definitions like "define library"
+    namedDefinition: ["module", "library", "macro",
+                      "C-struct", "C-union",
+                      "C-function", "C-callable-wrapper"
+                     ],
+
+    // Words that introduce type definitions like "define class".
+    // These are also parameterized like "define method" and are
+    // appended to otherParameterizedDefinitionWords
+    typeParameterizedDefinition: ["class", "C-subtype", "C-mapped-subtype"],
+
+    // Words that introduce trickier definitions like "define method".
+    // These require special definitions to be added to startExpressions
+    otherParameterizedDefinition: ["method", "function",
+                                   "C-variable", "C-address"
+                                  ],
+
+    // Words that introduce module constant definitions.
+    // These must also be simple definitions and are
+    // appended to otherSimpleDefinitionWords
+    constantSimpleDefinition: ["constant"],
+
+    // Words that introduce module variable definitions.
+    // These must also be simple definitions and are
+    // appended to otherSimpleDefinitionWords
+    variableSimpleDefinition: ["variable"],
+
+    // Other words that introduce simple definitions
+    // (without implicit bodies).
+    otherSimpleDefinition: ["generic", "domain",
+                            "C-pointer-type",
+                            "table"
+                           ],
+
+    // Words that begin statements with implicit bodies.
+    statement: ["if", "block", "begin", "method", "case",
+                "for", "select", "when", "unless", "until",
+                "while", "iterate", "profiling", "dynamic-bind"
+               ],
+
+    // Patterns that act as separators in compound statements.
+    // This may include any general pattern that must be indented
+    // specially.
+    separator: ["finally", "exception", "cleanup", "else",
+                "elseif", "afterwards"
+               ],
+
+    // Keywords that do not require special indentation handling,
+    // but which should be highlighted
+    other: ["above", "below", "by", "from", "handler", "in",
+            "instance", "let", "local", "otherwise", "slot",
+            "subclass", "then", "to", "keyed-by", "virtual"
+           ],
+
+    // Condition signaling function calls
+    signalingCalls: ["signal", "error", "cerror",
+                     "break", "check-type", "abort"
+                    ]
+  };
+
+  words["otherDefinition"] =
+    words["unnamedDefinition"]
+    .concat(words["namedDefinition"])
+    .concat(words["otherParameterizedDefinition"]);
+
+  words["definition"] =
+    words["typeParameterizedDefinition"]
+    .concat(words["otherDefinition"]);
+
+  words["parameterizedDefinition"] =
+    words["typeParameterizedDefinition"]
+    .concat(words["otherParameterizedDefinition"]);
+
+  words["simpleDefinition"] =
+    words["constantSimpleDefinition"]
+    .concat(words["variableSimpleDefinition"])
+    .concat(words["otherSimpleDefinition"]);
+
+  words["keyword"] =
+    words["statement"]
+    .concat(words["separator"])
+    .concat(words["other"]);
+
+  // Patterns
+  var symbolPattern = "[-_a-zA-Z?!*@<>$%]+";
+  var symbol = new RegExp("^" + symbolPattern);
+  var patterns = {
+    // Symbols with special syntax
+    symbolKeyword: symbolPattern + ":",
+    symbolClass: "<" + symbolPattern + ">",
+    symbolGlobal: "\\*" + symbolPattern + "\\*",
+    symbolConstant: "\\$" + symbolPattern
+  };
+  var patternStyles = {
+    symbolKeyword: "atom",
+    symbolClass: "tag",
+    symbolGlobal: "variable-2",
+    symbolConstant: "variable-3"
+  };
+
+  // Compile all patterns to regular expressions
+  for (var patternName in patterns)
+    if (patterns.hasOwnProperty(patternName))
+      patterns[patternName] = new RegExp("^" + patterns[patternName]);
+
+  // Names beginning "with-" and "without-" are commonly
+  // used as statement macro
+  patterns["keyword"] = [/^with(?:out)?-[-_a-zA-Z?!*@<>$%]+/];
+
+  var styles = {};
+  styles["keyword"] = "keyword";
+  styles["definition"] = "def";
+  styles["simpleDefinition"] = "def";
+  styles["signalingCalls"] = "builtin";
+
+  // protected words lookup table
+  var wordLookup = {};
+  var styleLookup = {};
+
+  forEach([
+    "keyword",
+    "definition",
+    "simpleDefinition",
+    "signalingCalls"
+  ], function(type) {
+    forEach(words[type], function(word) {
+      wordLookup[word] = type;
+      styleLookup[word] = styles[type];
+    });
+  });
+
+
+  function chain(stream, state, f) {
+    state.tokenize = f;
+    return f(stream, state);
+  }
+
+  function tokenBase(stream, state) {
+    // String
+    var ch = stream.peek();
+    if (ch == "'" || ch == '"') {
+      stream.next();
+      return chain(stream, state, tokenString(ch, "string"));
+    }
+    // Comment
+    else if (ch == "/") {
+      stream.next();
+      if (stream.eat("*")) {
+        return chain(stream, state, tokenComment);
+      } else if (stream.eat("/")) {
+        stream.skipToEnd();
+        return "comment";
+      }
+      stream.backUp(1);
+    }
+    // Decimal
+    else if (/[+\-\d\.]/.test(ch)) {
+      if (stream.match(/^[+-]?[0-9]*\.[0-9]*([esdx][+-]?[0-9]+)?/i) ||
+          stream.match(/^[+-]?[0-9]+([esdx][+-]?[0-9]+)/i) ||
+          stream.match(/^[+-]?\d+/)) {
+        return "number";
+      }
+    }
+    // Hash
+    else if (ch == "#") {
+      stream.next();
+      // Symbol with string syntax
+      ch = stream.peek();
+      if (ch == '"') {
+        stream.next();
+        return chain(stream, state, tokenString('"', "string"));
+      }
+      // Binary number
+      else if (ch == "b") {
+        stream.next();
+        stream.eatWhile(/[01]/);
+        return "number";
+      }
+      // Hex number
+      else if (ch == "x") {
+        stream.next();
+        stream.eatWhile(/[\da-f]/i);
+        return "number";
+      }
+      // Octal number
+      else if (ch == "o") {
+        stream.next();
+        stream.eatWhile(/[0-7]/);
+        return "number";
+      }
+      // Token concatenation in macros
+      else if (ch == '#') {
+        stream.next();
+        return "punctuation";
+      }
+      // Sequence literals
+      else if ((ch == '[') || (ch == '(')) {
+        stream.next();
+        return "bracket";
+      // Hash symbol
+      } else if (stream.match(/f|t|all-keys|include|key|next|rest/i)) {
+        return "atom";
+      } else {
+        stream.eatWhile(/[-a-zA-Z]/);
+        return "error";
+      }
+    } else if (ch == "~") {
+      stream.next();
+      ch = stream.peek();
+      if (ch == "=") {
+        stream.next();
+        ch = stream.peek();
+        if (ch == "=") {
+          stream.next();
+          return "operator";
+        }
+        return "operator";
+      }
+      return "operator";
+    } else if (ch == ":") {
+      stream.next();
+      ch = stream.peek();
+      if (ch == "=") {
+        stream.next();
+        return "operator";
+      } else if (ch == ":") {
+        stream.next();
+        return "punctuation";
+      }
+    } else if ("[](){}".indexOf(ch) != -1) {
+      stream.next();
+      return "bracket";
+    } else if (".,".indexOf(ch) != -1) {
+      stream.next();
+      return "punctuation";
+    } else if (stream.match("end")) {
+      return "keyword";
+    }
+    for (var name in patterns) {
+      if (patterns.hasOwnProperty(name)) {
+        var pattern = patterns[name];
+        if ((pattern instanceof Array && some(pattern, function(p) {
+          return stream.match(p);
+        })) || stream.match(pattern))
+          return patternStyles[name];
+      }
+    }
+    if (/[+\-*\/^=<>&|]/.test(ch)) {
+      stream.next();
+      return "operator";
+    }
+    if (stream.match("define")) {
+      return "def";
+    } else {
+      stream.eatWhile(/[\w\-]/);
+      // Keyword
+      if (wordLookup.hasOwnProperty(stream.current())) {
+        return styleLookup[stream.current()];
+      } else if (stream.current().match(symbol)) {
+        return "variable";
+      } else {
+        stream.next();
+        return "variable-2";
+      }
+    }
+  }
+
+  function tokenComment(stream, state) {
+    var maybeEnd = false, maybeNested = false, nestedCount = 0, ch;
+    while ((ch = stream.next())) {
+      if (ch == "/" && maybeEnd) {
+        if (nestedCount > 0) {
+          nestedCount--;
+        } else {
+          state.tokenize = tokenBase;
+          break;
+        }
+      } else if (ch == "*" && maybeNested) {
+        nestedCount++;
+      }
+      maybeEnd = (ch == "*");
+      maybeNested = (ch == "/");
+    }
+    return "comment";
+  }
+
+  function tokenString(quote, style) {
+    return function(stream, state) {
+      var escaped = false, next, end = false;
+      while ((next = stream.next()) != null) {
+        if (next == quote && !escaped) {
+          end = true;
+          break;
+        }
+        escaped = !escaped && next == "\\";
+      }
+      if (end || !escaped) {
+        state.tokenize = tokenBase;
+      }
+      return style;
+    };
+  }
+
+  // Interface
+  return {
+    startState: function() {
+      return {
+        tokenize: tokenBase,
+        currentIndent: 0
+      };
+    },
+    token: function(stream, state) {
+      if (stream.eatSpace())
+        return null;
+      var style = state.tokenize(stream, state);
+      return style;
+    },
+    blockCommentStart: "/*",
+    blockCommentEnd: "*/"
+  };
+});
+
+CodeMirror.defineMIME("text/x-dylan", "dylan");
+
+});
diff --git a/public/codemirror/mode/dylan/index.html b/public/codemirror/mode/dylan/index.html
new file mode 100644
index 000000000..ddf5ad067
--- /dev/null
+++ b/public/codemirror/mode/dylan/index.html
@@ -0,0 +1,407 @@
+
+
+CodeMirror: Dylan mode
+
+
+
+
+
+
+
+
+
+
+
+
+

+
Dylan mode

+
+
+

+
+    
+
+    
MIME types defined: text/x-dylan.

+

diff --git a/public/codemirror/mode/dylan/test.js b/public/codemirror/mode/dylan/test.js
new file mode 100644
index 000000000..bf25be27e
--- /dev/null
+++ b/public/codemirror/mode/dylan/test.js
@@ -0,0 +1,88 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({indentUnit: 2}, "dylan");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)); }
+
+  MT('comments',
+     '[comment // This is a line comment]',
+     '[comment /* This is a block comment */]',
+     '[comment /* This is a multi]',
+     '[comment line comment]',
+     '[comment */]',
+     '[comment /* And this is a /*]',
+     '[comment /* nested */ comment */]');
+
+  MT('unary_operators',
+     '[operator -][variable a]',
+     '[operator -] [variable a]',
+     '[operator ~][variable a]',
+     '[operator ~] [variable a]');
+
+  MT('binary_operators',
+     '[variable a] [operator +] [variable b]',
+     '[variable a] [operator -] [variable b]',
+     '[variable a] [operator *] [variable b]',
+     '[variable a] [operator /] [variable b]',
+     '[variable a] [operator ^] [variable b]',
+     '[variable a] [operator =] [variable b]',
+     '[variable a] [operator ==] [variable b]',
+     '[variable a] [operator ~=] [variable b]',
+     '[variable a] [operator ~==] [variable b]',
+     '[variable a] [operator <] [variable b]',
+     '[variable a] [operator <=] [variable b]',
+     '[variable a] [operator >] [variable b]',
+     '[variable a] [operator >=] [variable b]',
+     '[variable a] [operator &] [variable b]',
+     '[variable a] [operator |] [variable b]',
+     '[variable a] [operator :=] [variable b]');
+
+  MT('integers',
+     '[number 1]',
+     '[number 123]',
+     '[number -123]',
+     '[number +456]',
+     '[number #b010]',
+     '[number #o073]',
+     '[number #xabcDEF123]');
+
+  MT('floats',
+     '[number .3]',
+     '[number -1.]',
+     '[number -2.335]',
+     '[number +3.78d1]',
+     '[number 3.78s-1]',
+     '[number -3.32e+5]');
+
+  MT('characters_and_strings',
+     "[string 'a']",
+     "[string '\\\\'']",
+     '[string ""]',
+     '[string "a"]',
+     '[string "abc def"]',
+     '[string "More escaped characters: \\\\\\\\ \\\\a \\\\b \\\\e \\\\f \\\\n \\\\r \\\\t \\\\0 ..."]');
+
+  MT('brackets',
+     '[bracket #[[]]]',
+     '[bracket #()]',
+     '[bracket #(][number 1][bracket )]',
+     '[bracket [[][number 1][punctuation ,] [number 3][bracket ]]]',
+     '[bracket ()]',
+     '[bracket {}]',
+     '[keyword if] [bracket (][variable foo][bracket )]',
+     '[bracket (][number 1][bracket )]',
+     '[bracket [[][number 1][bracket ]]]');
+
+  MT('hash_words',
+     '[punctuation ##]',
+     '[atom #f]', '[atom #F]',
+     '[atom #t]', '[atom #T]',
+     '[atom #all-keys]',
+     '[atom #include]',
+     '[atom #key]',
+     '[atom #next]',
+     '[atom #rest]',
+     '[string #"foo"]',
+     '[error #invalid]');
+})();
diff --git a/public/codemirror/mode/ebnf/ebnf.js b/public/codemirror/mode/ebnf/ebnf.js
new file mode 100644
index 000000000..9618f8e42
--- /dev/null
+++ b/public/codemirror/mode/ebnf/ebnf.js
@@ -0,0 +1,195 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineMode("ebnf", function (config) {
+    var commentType = {slash: 0, parenthesis: 1};
+    var stateType = {comment: 0, _string: 1, characterClass: 2};
+    var bracesMode = null;
+
+    if (config.bracesMode)
+      bracesMode = CodeMirror.getMode(config, config.bracesMode);
+
+    return {
+      startState: function () {
+        return {
+          stringType: null,
+          commentType: null,
+          braced: 0,
+          lhs: true,
+          localState: null,
+          stack: [],
+          inDefinition: false
+        };
+      },
+      token: function (stream, state) {
+        if (!stream) return;
+
+        //check for state changes
+        if (state.stack.length === 0) {
+          //strings
+          if ((stream.peek() == '"') || (stream.peek() == "'")) {
+            state.stringType = stream.peek();
+            stream.next(); // Skip quote
+            state.stack.unshift(stateType._string);
+          } else if (stream.match(/^\/\*/)) { //comments starting with /*
+            state.stack.unshift(stateType.comment);
+            state.commentType = commentType.slash;
+          } else if (stream.match(/^\(\*/)) { //comments starting with (*
+            state.stack.unshift(stateType.comment);
+            state.commentType = commentType.parenthesis;
+          }
+        }
+
+        //return state
+        //stack has
+        switch (state.stack[0]) {
+        case stateType._string:
+          while (state.stack[0] === stateType._string && !stream.eol()) {
+            if (stream.peek() === state.stringType) {
+              stream.next(); // Skip quote
+              state.stack.shift(); // Clear flag
+            } else if (stream.peek() === "\\") {
+              stream.next();
+              stream.next();
+            } else {
+              stream.match(/^.[^\\\"\']*/);
+            }
+          }
+          return state.lhs ? "property string" : "string"; // Token style
+
+        case stateType.comment:
+          while (state.stack[0] === stateType.comment && !stream.eol()) {
+            if (state.commentType === commentType.slash && stream.match(/\*\//)) {
+              state.stack.shift(); // Clear flag
+              state.commentType = null;
+            } else if (state.commentType === commentType.parenthesis && stream.match(/\*\)/)) {
+              state.stack.shift(); // Clear flag
+              state.commentType = null;
+            } else {
+              stream.match(/^.[^\*]*/);
+            }
+          }
+          return "comment";
+
+        case stateType.characterClass:
+          while (state.stack[0] === stateType.characterClass && !stream.eol()) {
+            if (!(stream.match(/^[^\]\\]+/) || stream.match(/^\\./))) {
+              state.stack.shift();
+            }
+          }
+          return "operator";
+        }
+
+        var peek = stream.peek();
+
+        if (bracesMode !== null && (state.braced || peek === "{")) {
+          if (state.localState === null)
+            state.localState = CodeMirror.startState(bracesMode);
+
+          var token = bracesMode.token(stream, state.localState),
+          text = stream.current();
+
+          if (!token) {
+            for (var i = 0; i < text.length; i++) {
+              if (text[i] === "{") {
+                if (state.braced === 0) {
+                  token = "matchingbracket";
+                }
+                state.braced++;
+              } else if (text[i] === "}") {
+                state.braced--;
+                if (state.braced === 0) {
+                  token = "matchingbracket";
+                }
+              }
+            }
+          }
+          return token;
+        }
+
+        //no stack
+        switch (peek) {
+        case "[":
+          stream.next();
+          state.stack.unshift(stateType.characterClass);
+          return "bracket";
+        case ":":
+        case "|":
+        case ";":
+          stream.next();
+          return "operator";
+        case "%":
+          if (stream.match("%%")) {
+            return "header";
+          } else if (stream.match(/[%][A-Za-z]+/)) {
+            return "keyword";
+          } else if (stream.match(/[%][}]/)) {
+            return "matchingbracket";
+          }
+          break;
+        case "/":
+          if (stream.match(/[\/][A-Za-z]+/)) {
+          return "keyword";
+        }
+        case "\\":
+          if (stream.match(/[\][a-z]+/)) {
+            return "string-2";
+          }
+        case ".":
+          if (stream.match(".")) {
+            return "atom";
+          }
+        case "*":
+        case "-":
+        case "+":
+        case "^":
+          if (stream.match(peek)) {
+            return "atom";
+          }
+        case "$":
+          if (stream.match("$$")) {
+            return "builtin";
+          } else if (stream.match(/[$][0-9]+/)) {
+            return "variable-3";
+          }
+        case "<":
+          if (stream.match(/<<[a-zA-Z_]+>>/)) {
+            return "builtin";
+          }
+        }
+
+        if (stream.match(/^\/\//)) {
+          stream.skipToEnd();
+          return "comment";
+        } else if (stream.match(/return/)) {
+          return "operator";
+        } else if (stream.match(/^[a-zA-Z_][a-zA-Z0-9_]*/)) {
+          if (stream.match(/(?=[\(.])/)) {
+            return "variable";
+          } else if (stream.match(/(?=[\s\n]*[:=])/)) {
+            return "def";
+          }
+          return "variable-2";
+        } else if (["[", "]", "(", ")"].indexOf(stream.peek()) != -1) {
+          stream.next();
+          return "bracket";
+        } else if (!stream.eatSpace()) {
+          stream.next();
+        }
+        return null;
+      }
+    };
+  });
+
+  CodeMirror.defineMIME("text/x-ebnf", "ebnf");
+});
diff --git a/public/codemirror/mode/ebnf/index.html b/public/codemirror/mode/ebnf/index.html
new file mode 100644
index 000000000..13845629b
--- /dev/null
+++ b/public/codemirror/mode/ebnf/index.html
@@ -0,0 +1,102 @@
+
+
+  
+    CodeMirror: EBNF Mode
+    
+    
+
+    
+    
+    
+    
+    
+  
+  
+    
+
+    

+      
EBNF Mode (bracesMode setting = "javascript")

+      

+      
+      
The EBNF Mode

+      
 Created by Robert Plummer

+    

+  
+
diff --git a/public/codemirror/mode/ecl/ecl.js b/public/codemirror/mode/ecl/ecl.js
new file mode 100644
index 000000000..8df7ebe4a
--- /dev/null
+++ b/public/codemirror/mode/ecl/ecl.js
@@ -0,0 +1,206 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("ecl", function(config) {
+
+  function words(str) {
+    var obj = {}, words = str.split(" ");
+    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+    return obj;
+  }
+
+  function metaHook(stream, state) {
+    if (!state.startOfLine) return false;
+    stream.skipToEnd();
+    return "meta";
+  }
+
+  var indentUnit = config.indentUnit;
+  var keyword = words("abs acos allnodes ascii asin asstring atan atan2 ave case choose choosen choosesets clustersize combine correlation cos cosh count covariance cron dataset dedup define denormalize distribute distributed distribution ebcdic enth error evaluate event eventextra eventname exists exp failcode failmessage fetch fromunicode getisvalid global graph group hash hash32 hash64 hashcrc hashmd5 having if index intformat isvalid iterate join keyunicode length library limit ln local log loop map matched matchlength matchposition matchtext matchunicode max merge mergejoin min nolocal nonempty normalize parse pipe power preload process project pull random range rank ranked realformat recordof regexfind regexreplace regroup rejected rollup round roundup row rowdiff sample set sin sinh sizeof soapcall sort sorted sqrt stepped stored sum table tan tanh thisnode topn tounicode transfer trim truncate typeof ungroup unicodeorder variance which workunit xmldecode xmlencode xmltext xmlunicode");
+  var variable = words("apply assert build buildindex evaluate fail keydiff keypatch loadxml nothor notify output parallel sequential soapcall wait");
+  var variable_2 = words("__compressed__ all and any as atmost before beginc++ best between case const counter csv descend encrypt end endc++ endmacro except exclusive expire export extend false few first flat from full function group header heading hole ifblock import in interface joined keep keyed last left limit load local locale lookup macro many maxcount maxlength min skew module named nocase noroot noscan nosort not of only opt or outer overwrite packed partition penalty physicallength pipe quote record relationship repeat return right scan self separator service shared skew skip sql store terminator thor threshold token transform trim true type unicodeorder unsorted validate virtual whole wild within xml xpath");
+  var variable_3 = words("ascii big_endian boolean data decimal ebcdic integer pattern qstring real record rule set of string token udecimal unicode unsigned varstring varunicode");
+  var builtin = words("checkpoint deprecated failcode failmessage failure global independent onwarning persist priority recovery stored success wait when");
+  var blockKeywords = words("catch class do else finally for if switch try while");
+  var atoms = words("true false null");
+  var hooks = {"#": metaHook};
+  var isOperatorChar = /[+\-*&%=<>!?|\/]/;
+
+  var curPunc;
+
+  function tokenBase(stream, state) {
+    var ch = stream.next();
+    if (hooks[ch]) {
+      var result = hooks[ch](stream, state);
+      if (result !== false) return result;
+    }
+    if (ch == '"' || ch == "'") {
+      state.tokenize = tokenString(ch);
+      return state.tokenize(stream, state);
+    }
+    if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
+      curPunc = ch;
+      return null;
+    }
+    if (/\d/.test(ch)) {
+      stream.eatWhile(/[\w\.]/);
+      return "number";
+    }
+    if (ch == "/") {
+      if (stream.eat("*")) {
+        state.tokenize = tokenComment;
+        return tokenComment(stream, state);
+      }
+      if (stream.eat("/")) {
+        stream.skipToEnd();
+        return "comment";
+      }
+    }
+    if (isOperatorChar.test(ch)) {
+      stream.eatWhile(isOperatorChar);
+      return "operator";
+    }
+    stream.eatWhile(/[\w\$_]/);
+    var cur = stream.current().toLowerCase();
+    if (keyword.propertyIsEnumerable(cur)) {
+      if (blockKeywords.propertyIsEnumerable(cur)) curPunc = "newstatement";
+      return "keyword";
+    } else if (variable.propertyIsEnumerable(cur)) {
+      if (blockKeywords.propertyIsEnumerable(cur)) curPunc = "newstatement";
+      return "variable";
+    } else if (variable_2.propertyIsEnumerable(cur)) {
+      if (blockKeywords.propertyIsEnumerable(cur)) curPunc = "newstatement";
+      return "variable-2";
+    } else if (variable_3.propertyIsEnumerable(cur)) {
+      if (blockKeywords.propertyIsEnumerable(cur)) curPunc = "newstatement";
+      return "variable-3";
+    } else if (builtin.propertyIsEnumerable(cur)) {
+      if (blockKeywords.propertyIsEnumerable(cur)) curPunc = "newstatement";
+      return "builtin";
+    } else { //Data types are of from KEYWORD##
+                var i = cur.length - 1;
+                while(i >= 0 && (!isNaN(cur[i]) || cur[i] == '_'))
+                        --i;
+
+                if (i > 0) {
+                        var cur2 = cur.substr(0, i + 1);
+                if (variable_3.propertyIsEnumerable(cur2)) {
+                        if (blockKeywords.propertyIsEnumerable(cur2)) curPunc = "newstatement";
+                        return "variable-3";
+                }
+            }
+    }
+    if (atoms.propertyIsEnumerable(cur)) return "atom";
+    return null;
+  }
+
+  function tokenString(quote) {
+    return function(stream, state) {
+      var escaped = false, next, end = false;
+      while ((next = stream.next()) != null) {
+        if (next == quote && !escaped) {end = true; break;}
+        escaped = !escaped && next == "\\";
+      }
+      if (end || !escaped)
+        state.tokenize = tokenBase;
+      return "string";
+    };
+  }
+
+  function tokenComment(stream, state) {
+    var maybeEnd = false, ch;
+    while (ch = stream.next()) {
+      if (ch == "/" && maybeEnd) {
+        state.tokenize = tokenBase;
+        break;
+      }
+      maybeEnd = (ch == "*");
+    }
+    return "comment";
+  }
+
+  function Context(indented, column, type, align, prev) {
+    this.indented = indented;
+    this.column = column;
+    this.type = type;
+    this.align = align;
+    this.prev = prev;
+  }
+  function pushContext(state, col, type) {
+    return state.context = new Context(state.indented, col, type, null, state.context);
+  }
+  function popContext(state) {
+    var t = state.context.type;
+    if (t == ")" || t == "]" || t == "}")
+      state.indented = state.context.indented;
+    return state.context = state.context.prev;
+  }
+
+  // Interface
+
+  return {
+    startState: function(basecolumn) {
+      return {
+        tokenize: null,
+        context: new Context((basecolumn || 0) - indentUnit, 0, "top", false),
+        indented: 0,
+        startOfLine: true
+      };
+    },
+
+    token: function(stream, state) {
+      var ctx = state.context;
+      if (stream.sol()) {
+        if (ctx.align == null) ctx.align = false;
+        state.indented = stream.indentation();
+        state.startOfLine = true;
+      }
+      if (stream.eatSpace()) return null;
+      curPunc = null;
+      var style = (state.tokenize || tokenBase)(stream, state);
+      if (style == "comment" || style == "meta") return style;
+      if (ctx.align == null) ctx.align = true;
+
+      if ((curPunc == ";" || curPunc == ":") && ctx.type == "statement") popContext(state);
+      else if (curPunc == "{") pushContext(state, stream.column(), "}");
+      else if (curPunc == "[") pushContext(state, stream.column(), "]");
+      else if (curPunc == "(") pushContext(state, stream.column(), ")");
+      else if (curPunc == "}") {
+        while (ctx.type == "statement") ctx = popContext(state);
+        if (ctx.type == "}") ctx = popContext(state);
+        while (ctx.type == "statement") ctx = popContext(state);
+      }
+      else if (curPunc == ctx.type) popContext(state);
+      else if (ctx.type == "}" || ctx.type == "top" || (ctx.type == "statement" && curPunc == "newstatement"))
+        pushContext(state, stream.column(), "statement");
+      state.startOfLine = false;
+      return style;
+    },
+
+    indent: function(state, textAfter) {
+      if (state.tokenize != tokenBase && state.tokenize != null) return 0;
+      var ctx = state.context, firstChar = textAfter && textAfter.charAt(0);
+      if (ctx.type == "statement" && firstChar == "}") ctx = ctx.prev;
+      var closing = firstChar == ctx.type;
+      if (ctx.type == "statement") return ctx.indented + (firstChar == "{" ? 0 : indentUnit);
+      else if (ctx.align) return ctx.column + (closing ? 0 : 1);
+      else return ctx.indented + (closing ? 0 : indentUnit);
+    },
+
+    electricChars: "{}"
+  };
+});
+
+CodeMirror.defineMIME("text/x-ecl", "ecl");
+
+});
diff --git a/public/codemirror/mode/ecl/index.html b/public/codemirror/mode/ecl/index.html
new file mode 100644
index 000000000..2306860dc
--- /dev/null
+++ b/public/codemirror/mode/ecl/index.html
@@ -0,0 +1,52 @@
+
+
+CodeMirror: ECL mode
+
+
+
+
+
+
+
+
+
+

+
ECL mode

+

+    
+
+    
Based on CodeMirror's clike mode.  For more information see HPCC Systems web site.

+    
MIME types defined: text/x-ecl.

+
+  

diff --git a/public/codemirror/mode/eiffel/eiffel.js b/public/codemirror/mode/eiffel/eiffel.js
new file mode 100644
index 000000000..b8b70e36e
--- /dev/null
+++ b/public/codemirror/mode/eiffel/eiffel.js
@@ -0,0 +1,160 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("eiffel", function() {
+  function wordObj(words) {
+    var o = {};
+    for (var i = 0, e = words.length; i < e; ++i) o[words[i]] = true;
+    return o;
+  }
+  var keywords = wordObj([
+    'note',
+    'across',
+    'when',
+    'variant',
+    'until',
+    'unique',
+    'undefine',
+    'then',
+    'strip',
+    'select',
+    'retry',
+    'rescue',
+    'require',
+    'rename',
+    'reference',
+    'redefine',
+    'prefix',
+    'once',
+    'old',
+    'obsolete',
+    'loop',
+    'local',
+    'like',
+    'is',
+    'inspect',
+    'infix',
+    'include',
+    'if',
+    'frozen',
+    'from',
+    'external',
+    'export',
+    'ensure',
+    'end',
+    'elseif',
+    'else',
+    'do',
+    'creation',
+    'create',
+    'check',
+    'alias',
+    'agent',
+    'separate',
+    'invariant',
+    'inherit',
+    'indexing',
+    'feature',
+    'expanded',
+    'deferred',
+    'class',
+    'Void',
+    'True',
+    'Result',
+    'Precursor',
+    'False',
+    'Current',
+    'create',
+    'attached',
+    'detachable',
+    'as',
+    'and',
+    'implies',
+    'not',
+    'or'
+  ]);
+  var operators = wordObj([":=", "and then","and", "or","<<",">>"]);
+
+  function chain(newtok, stream, state) {
+    state.tokenize.push(newtok);
+    return newtok(stream, state);
+  }
+
+  function tokenBase(stream, state) {
+    if (stream.eatSpace()) return null;
+    var ch = stream.next();
+    if (ch == '"'||ch == "'") {
+      return chain(readQuoted(ch, "string"), stream, state);
+    } else if (ch == "-"&&stream.eat("-")) {
+      stream.skipToEnd();
+      return "comment";
+    } else if (ch == ":"&&stream.eat("=")) {
+      return "operator";
+    } else if (/[0-9]/.test(ch)) {
+      stream.eatWhile(/[xXbBCc0-9\.]/);
+      stream.eat(/[\?\!]/);
+      return "ident";
+    } else if (/[a-zA-Z_0-9]/.test(ch)) {
+      stream.eatWhile(/[a-zA-Z_0-9]/);
+      stream.eat(/[\?\!]/);
+      return "ident";
+    } else if (/[=+\-\/*^%<>~]/.test(ch)) {
+      stream.eatWhile(/[=+\-\/*^%<>~]/);
+      return "operator";
+    } else {
+      return null;
+    }
+  }
+
+  function readQuoted(quote, style,  unescaped) {
+    return function(stream, state) {
+      var escaped = false, ch;
+      while ((ch = stream.next()) != null) {
+        if (ch == quote && (unescaped || !escaped)) {
+          state.tokenize.pop();
+          break;
+        }
+        escaped = !escaped && ch == "%";
+      }
+      return style;
+    };
+  }
+
+  return {
+    startState: function() {
+      return {tokenize: [tokenBase]};
+    },
+
+    token: function(stream, state) {
+      var style = state.tokenize[state.tokenize.length-1](stream, state);
+      if (style == "ident") {
+        var word = stream.current();
+        style = keywords.propertyIsEnumerable(stream.current()) ? "keyword"
+          : operators.propertyIsEnumerable(stream.current()) ? "operator"
+          : /^[A-Z][A-Z_0-9]*$/g.test(word) ? "tag"
+          : /^0[bB][0-1]+$/g.test(word) ? "number"
+          : /^0[cC][0-7]+$/g.test(word) ? "number"
+          : /^0[xX][a-fA-F0-9]+$/g.test(word) ? "number"
+          : /^([0-9]+\.[0-9]*)|([0-9]*\.[0-9]+)$/g.test(word) ? "number"
+          : /^[0-9]+$/g.test(word) ? "number"
+          : "variable";
+      }
+      return style;
+    },
+    lineComment: "--"
+  };
+});
+
+CodeMirror.defineMIME("text/x-eiffel", "eiffel");
+
+});
diff --git a/public/codemirror/mode/eiffel/index.html b/public/codemirror/mode/eiffel/index.html
new file mode 100644
index 000000000..108a71bec
--- /dev/null
+++ b/public/codemirror/mode/eiffel/index.html
@@ -0,0 +1,429 @@
+
+
+CodeMirror: Eiffel mode
+
+
+
+
+
+
+
+
+
+
+

+
Eiffel mode

+

+    
+
+    
MIME types defined: text/x-eiffel.

+ 
+ 
 Created by YNH.

+  

diff --git a/public/codemirror/mode/elm/elm.js b/public/codemirror/mode/elm/elm.js
new file mode 100644
index 000000000..b31e66375
--- /dev/null
+++ b/public/codemirror/mode/elm/elm.js
@@ -0,0 +1,205 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineMode("elm", function() {
+
+    function switchState(source, setState, f) {
+      setState(f);
+      return f(source, setState);
+    }
+
+    // These should all be Unicode extended, as per the Haskell 2010 report
+    var smallRE = /[a-z_]/;
+    var largeRE = /[A-Z]/;
+    var digitRE = /[0-9]/;
+    var hexitRE = /[0-9A-Fa-f]/;
+    var octitRE = /[0-7]/;
+    var idRE = /[a-z_A-Z0-9\']/;
+    var symbolRE = /[-!#$%&*+.\/<=>?@\\^|~:\u03BB\u2192]/;
+    var specialRE = /[(),;[\]`{}]/;
+    var whiteCharRE = /[ \t\v\f]/; // newlines are handled in tokenizer
+
+    function normal() {
+      return function (source, setState) {
+        if (source.eatWhile(whiteCharRE)) {
+          return null;
+        }
+
+        var ch = source.next();
+        if (specialRE.test(ch)) {
+          if (ch == '{' && source.eat('-')) {
+            var t = "comment";
+            if (source.eat('#')) t = "meta";
+            return switchState(source, setState, ncomment(t, 1));
+          }
+          return null;
+        }
+
+        if (ch == '\'') {
+          if (source.eat('\\'))
+            source.next();  // should handle other escapes here
+          else
+            source.next();
+
+          if (source.eat('\''))
+            return "string";
+          return "error";
+        }
+
+        if (ch == '"') {
+          return switchState(source, setState, stringLiteral);
+        }
+
+        if (largeRE.test(ch)) {
+          source.eatWhile(idRE);
+          if (source.eat('.'))
+            return "qualifier";
+          return "variable-2";
+        }
+
+        if (smallRE.test(ch)) {
+          var isDef = source.pos === 1;
+          source.eatWhile(idRE);
+          return isDef ? "variable-3" : "variable";
+        }
+
+        if (digitRE.test(ch)) {
+          if (ch == '0') {
+            if (source.eat(/[xX]/)) {
+              source.eatWhile(hexitRE); // should require at least 1
+              return "integer";
+            }
+            if (source.eat(/[oO]/)) {
+              source.eatWhile(octitRE); // should require at least 1
+              return "number";
+            }
+          }
+          source.eatWhile(digitRE);
+          var t = "number";
+          if (source.eat('.')) {
+            t = "number";
+            source.eatWhile(digitRE); // should require at least 1
+          }
+          if (source.eat(/[eE]/)) {
+            t = "number";
+            source.eat(/[-+]/);
+            source.eatWhile(digitRE); // should require at least 1
+          }
+          return t;
+        }
+
+        if (symbolRE.test(ch)) {
+          if (ch == '-' && source.eat(/-/)) {
+            source.eatWhile(/-/);
+            if (!source.eat(symbolRE)) {
+              source.skipToEnd();
+              return "comment";
+            }
+          }
+          source.eatWhile(symbolRE);
+          return "builtin";
+        }
+
+        return "error";
+      }
+    }
+
+    function ncomment(type, nest) {
+      if (nest == 0) {
+        return normal();
+      }
+      return function(source, setState) {
+        var currNest = nest;
+        while (!source.eol()) {
+          var ch = source.next();
+          if (ch == '{' && source.eat('-')) {
+            ++currNest;
+          } else if (ch == '-' && source.eat('}')) {
+            --currNest;
+            if (currNest == 0) {
+              setState(normal());
+              return type;
+            }
+          }
+        }
+        setState(ncomment(type, currNest));
+        return type;
+      }
+    }
+
+    function stringLiteral(source, setState) {
+      while (!source.eol()) {
+        var ch = source.next();
+        if (ch == '"') {
+          setState(normal());
+          return "string";
+        }
+        if (ch == '\\') {
+          if (source.eol() || source.eat(whiteCharRE)) {
+            setState(stringGap);
+            return "string";
+          }
+          if (!source.eat('&')) source.next(); // should handle other escapes here
+        }
+      }
+      setState(normal());
+      return "error";
+    }
+
+    function stringGap(source, setState) {
+      if (source.eat('\\')) {
+        return switchState(source, setState, stringLiteral);
+      }
+      source.next();
+      setState(normal());
+      return "error";
+    }
+
+
+    var wellKnownWords = (function() {
+      var wkw = {};
+
+      var keywords = [
+        "case", "of", "as",
+        "if", "then", "else",
+        "let", "in",
+        "infix", "infixl", "infixr",
+        "type", "alias",
+        "input", "output", "foreign", "loopback",
+        "module", "where", "import", "exposing",
+        "_", "..", "|", ":", "=", "\\", "\"", "->", "<-"
+      ];
+
+      for (var i = keywords.length; i--;)
+        wkw[keywords[i]] = "keyword";
+
+      return wkw;
+    })();
+
+
+
+    return {
+      startState: function ()  { return { f: normal() }; },
+      copyState:  function (s) { return { f: s.f }; },
+
+      token: function(stream, state) {
+        var t = state.f(stream, function(s) { state.f = s; });
+        var w = stream.current();
+        return (wellKnownWords.hasOwnProperty(w)) ? wellKnownWords[w] : t;
+      }
+    };
+
+  });
+
+  CodeMirror.defineMIME("text/x-elm", "elm");
+});
diff --git a/public/codemirror/mode/elm/index.html b/public/codemirror/mode/elm/index.html
new file mode 100644
index 000000000..d5cb16abf
--- /dev/null
+++ b/public/codemirror/mode/elm/index.html
@@ -0,0 +1,61 @@
+
+
+CodeMirror: Elm mode
+
+
+
+
+
+
+
+
+
+

+
Elm mode

+
+

+
+    
+
+    
MIME types defined: text/x-elm.

+  

diff --git a/public/codemirror/mode/erlang/erlang.js b/public/codemirror/mode/erlang/erlang.js
new file mode 100644
index 000000000..9528e19f9
--- /dev/null
+++ b/public/codemirror/mode/erlang/erlang.js
@@ -0,0 +1,619 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+/*jshint unused:true, eqnull:true, curly:true, bitwise:true */
+/*jshint undef:true, latedef:true, trailing:true */
+/*global CodeMirror:true */
+
+// erlang mode.
+// tokenizer -> token types -> CodeMirror styles
+// tokenizer maintains a parse stack
+// indenter uses the parse stack
+
+// TODO indenter:
+//   bit syntax
+//   old guard/bif/conversion clashes (e.g. "float/1")
+//   type/spec/opaque
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMIME("text/x-erlang", "erlang");
+
+CodeMirror.defineMode("erlang", function(cmCfg) {
+  "use strict";
+
+/////////////////////////////////////////////////////////////////////////////
+// constants
+
+  var typeWords = [
+    "-type", "-spec", "-export_type", "-opaque"];
+
+  var keywordWords = [
+    "after","begin","catch","case","cond","end","fun","if",
+    "let","of","query","receive","try","when"];
+
+  var separatorRE    = /[\->,;]/;
+  var separatorWords = [
+    "->",";",","];
+
+  var operatorAtomWords = [
+    "and","andalso","band","bnot","bor","bsl","bsr","bxor",
+    "div","not","or","orelse","rem","xor"];
+
+  var operatorSymbolRE    = /[\+\-\*\/<>=\|:!]/;
+  var operatorSymbolWords = [
+    "=","+","-","*","/",">",">=","<","=<","=:=","==","=/=","/=","||","<-","!"];
+
+  var openParenRE    = /[<\(\[\{]/;
+  var openParenWords = [
+    "<<","(","[","{"];
+
+  var closeParenRE    = /[>\)\]\}]/;
+  var closeParenWords = [
+    "}","]",")",">>"];
+
+  var guardWords = [
+    "is_atom","is_binary","is_bitstring","is_boolean","is_float",
+    "is_function","is_integer","is_list","is_number","is_pid",
+    "is_port","is_record","is_reference","is_tuple",
+    "atom","binary","bitstring","boolean","function","integer","list",
+    "number","pid","port","record","reference","tuple"];
+
+  var bifWords = [
+    "abs","adler32","adler32_combine","alive","apply","atom_to_binary",
+    "atom_to_list","binary_to_atom","binary_to_existing_atom",
+    "binary_to_list","binary_to_term","bit_size","bitstring_to_list",
+    "byte_size","check_process_code","contact_binary","crc32",
+    "crc32_combine","date","decode_packet","delete_module",
+    "disconnect_node","element","erase","exit","float","float_to_list",
+    "garbage_collect","get","get_keys","group_leader","halt","hd",
+    "integer_to_list","internal_bif","iolist_size","iolist_to_binary",
+    "is_alive","is_atom","is_binary","is_bitstring","is_boolean",
+    "is_float","is_function","is_integer","is_list","is_number","is_pid",
+    "is_port","is_process_alive","is_record","is_reference","is_tuple",
+    "length","link","list_to_atom","list_to_binary","list_to_bitstring",
+    "list_to_existing_atom","list_to_float","list_to_integer",
+    "list_to_pid","list_to_tuple","load_module","make_ref","module_loaded",
+    "monitor_node","node","node_link","node_unlink","nodes","notalive",
+    "now","open_port","pid_to_list","port_close","port_command",
+    "port_connect","port_control","pre_loaded","process_flag",
+    "process_info","processes","purge_module","put","register",
+    "registered","round","self","setelement","size","spawn","spawn_link",
+    "spawn_monitor","spawn_opt","split_binary","statistics",
+    "term_to_binary","time","throw","tl","trunc","tuple_size",
+    "tuple_to_list","unlink","unregister","whereis"];
+
+// upper case: [A-Z] [Ø-Þ] [À-Ö]
+// lower case: [a-z] [ß-ö] [ø-ÿ]
+  var anumRE       = /[\w@Ø-ÞÀ-Öß-öø-ÿ]/;
+  var escapesRE    =
+    /[0-7]{1,3}|[bdefnrstv\\"']|\^[a-zA-Z]|x[0-9a-zA-Z]{2}|x{[0-9a-zA-Z]+}/;
+
+/////////////////////////////////////////////////////////////////////////////
+// tokenizer
+
+  function tokenizer(stream,state) {
+    // in multi-line string
+    if (state.in_string) {
+      state.in_string = (!doubleQuote(stream));
+      return rval(state,stream,"string");
+    }
+
+    // in multi-line atom
+    if (state.in_atom) {
+      state.in_atom = (!singleQuote(stream));
+      return rval(state,stream,"atom");
+    }
+
+    // whitespace
+    if (stream.eatSpace()) {
+      return rval(state,stream,"whitespace");
+    }
+
+    // attributes and type specs
+    if (!peekToken(state) &&
+        stream.match(/-\s*[a-zß-öø-ÿ][\wØ-ÞÀ-Öß-öø-ÿ]*/)) {
+      if (is_member(stream.current(),typeWords)) {
+        return rval(state,stream,"type");
+      }else{
+        return rval(state,stream,"attribute");
+      }
+    }
+
+    var ch = stream.next();
+
+    // comment
+    if (ch == '%') {
+      stream.skipToEnd();
+      return rval(state,stream,"comment");
+    }
+
+    // colon
+    if (ch == ":") {
+      return rval(state,stream,"colon");
+    }
+
+    // macro
+    if (ch == '?') {
+      stream.eatSpace();
+      stream.eatWhile(anumRE);
+      return rval(state,stream,"macro");
+    }
+
+    // record
+    if (ch == "#") {
+      stream.eatSpace();
+      stream.eatWhile(anumRE);
+      return rval(state,stream,"record");
+    }
+
+    // dollar escape
+    if (ch == "$") {
+      if (stream.next() == "\\" && !stream.match(escapesRE)) {
+        return rval(state,stream,"error");
+      }
+      return rval(state,stream,"number");
+    }
+
+    // dot
+    if (ch == ".") {
+      return rval(state,stream,"dot");
+    }
+
+    // quoted atom
+    if (ch == '\'') {
+      if (!(state.in_atom = (!singleQuote(stream)))) {
+        if (stream.match(/\s*\/\s*[0-9]/,false)) {
+          stream.match(/\s*\/\s*[0-9]/,true);
+          return rval(state,stream,"fun");      // 'f'/0 style fun
+        }
+        if (stream.match(/\s*\(/,false) || stream.match(/\s*:/,false)) {
+          return rval(state,stream,"function");
+        }
+      }
+      return rval(state,stream,"atom");
+    }
+
+    // string
+    if (ch == '"') {
+      state.in_string = (!doubleQuote(stream));
+      return rval(state,stream,"string");
+    }
+
+    // variable
+    if (/[A-Z_Ø-ÞÀ-Ö]/.test(ch)) {
+      stream.eatWhile(anumRE);
+      return rval(state,stream,"variable");
+    }
+
+    // atom/keyword/BIF/function
+    if (/[a-z_ß-öø-ÿ]/.test(ch)) {
+      stream.eatWhile(anumRE);
+
+      if (stream.match(/\s*\/\s*[0-9]/,false)) {
+        stream.match(/\s*\/\s*[0-9]/,true);
+        return rval(state,stream,"fun");      // f/0 style fun
+      }
+
+      var w = stream.current();
+
+      if (is_member(w,keywordWords)) {
+        return rval(state,stream,"keyword");
+      }else if (is_member(w,operatorAtomWords)) {
+        return rval(state,stream,"operator");
+      }else if (stream.match(/\s*\(/,false)) {
+        // 'put' and 'erlang:put' are bifs, 'foo:put' is not
+        if (is_member(w,bifWords) &&
+            ((peekToken(state).token != ":") ||
+             (peekToken(state,2).token == "erlang"))) {
+          return rval(state,stream,"builtin");
+        }else if (is_member(w,guardWords)) {
+          return rval(state,stream,"guard");
+        }else{
+          return rval(state,stream,"function");
+        }
+      }else if (lookahead(stream) == ":") {
+        if (w == "erlang") {
+          return rval(state,stream,"builtin");
+        } else {
+          return rval(state,stream,"function");
+        }
+      }else if (is_member(w,["true","false"])) {
+        return rval(state,stream,"boolean");
+      }else{
+        return rval(state,stream,"atom");
+      }
+    }
+
+    // number
+    var digitRE      = /[0-9]/;
+    var radixRE      = /[0-9a-zA-Z]/;         // 36#zZ style int
+    if (digitRE.test(ch)) {
+      stream.eatWhile(digitRE);
+      if (stream.eat('#')) {                // 36#aZ  style integer
+        if (!stream.eatWhile(radixRE)) {
+          stream.backUp(1);                 //"36#" - syntax error
+        }
+      } else if (stream.eat('.')) {       // float
+        if (!stream.eatWhile(digitRE)) {
+          stream.backUp(1);        // "3." - probably end of function
+        } else {
+          if (stream.eat(/[eE]/)) {        // float with exponent
+            if (stream.eat(/[-+]/)) {
+              if (!stream.eatWhile(digitRE)) {
+                stream.backUp(2);            // "2e-" - syntax error
+              }
+            } else {
+              if (!stream.eatWhile(digitRE)) {
+                stream.backUp(1);            // "2e" - syntax error
+              }
+            }
+          }
+        }
+      }
+      return rval(state,stream,"number");   // normal integer
+    }
+
+    // open parens
+    if (nongreedy(stream,openParenRE,openParenWords)) {
+      return rval(state,stream,"open_paren");
+    }
+
+    // close parens
+    if (nongreedy(stream,closeParenRE,closeParenWords)) {
+      return rval(state,stream,"close_paren");
+    }
+
+    // separators
+    if (greedy(stream,separatorRE,separatorWords)) {
+      return rval(state,stream,"separator");
+    }
+
+    // operators
+    if (greedy(stream,operatorSymbolRE,operatorSymbolWords)) {
+      return rval(state,stream,"operator");
+    }
+
+    return rval(state,stream,null);
+  }
+
+/////////////////////////////////////////////////////////////////////////////
+// utilities
+  function nongreedy(stream,re,words) {
+    if (stream.current().length == 1 && re.test(stream.current())) {
+      stream.backUp(1);
+      while (re.test(stream.peek())) {
+        stream.next();
+        if (is_member(stream.current(),words)) {
+          return true;
+        }
+      }
+      stream.backUp(stream.current().length-1);
+    }
+    return false;
+  }
+
+  function greedy(stream,re,words) {
+    if (stream.current().length == 1 && re.test(stream.current())) {
+      while (re.test(stream.peek())) {
+        stream.next();
+      }
+      while (0 < stream.current().length) {
+        if (is_member(stream.current(),words)) {
+          return true;
+        }else{
+          stream.backUp(1);
+        }
+      }
+      stream.next();
+    }
+    return false;
+  }
+
+  function doubleQuote(stream) {
+    return quote(stream, '"', '\\');
+  }
+
+  function singleQuote(stream) {
+    return quote(stream,'\'','\\');
+  }
+
+  function quote(stream,quoteChar,escapeChar) {
+    while (!stream.eol()) {
+      var ch = stream.next();
+      if (ch == quoteChar) {
+        return true;
+      }else if (ch == escapeChar) {
+        stream.next();
+      }
+    }
+    return false;
+  }
+
+  function lookahead(stream) {
+    var m = stream.match(/([\n\s]+|%[^\n]*\n)*(.)/,false);
+    return m ? m.pop() : "";
+  }
+
+  function is_member(element,list) {
+    return (-1 < list.indexOf(element));
+  }
+
+  function rval(state,stream,type) {
+
+    // parse stack
+    pushToken(state,realToken(type,stream));
+
+    // map erlang token type to CodeMirror style class
+    //     erlang             -> CodeMirror tag
+    switch (type) {
+      case "atom":        return "atom";
+      case "attribute":   return "attribute";
+      case "boolean":     return "atom";
+      case "builtin":     return "builtin";
+      case "close_paren": return null;
+      case "colon":       return null;
+      case "comment":     return "comment";
+      case "dot":         return null;
+      case "error":       return "error";
+      case "fun":         return "meta";
+      case "function":    return "tag";
+      case "guard":       return "property";
+      case "keyword":     return "keyword";
+      case "macro":       return "variable-2";
+      case "number":      return "number";
+      case "open_paren":  return null;
+      case "operator":    return "operator";
+      case "record":      return "bracket";
+      case "separator":   return null;
+      case "string":      return "string";
+      case "type":        return "def";
+      case "variable":    return "variable";
+      default:            return null;
+    }
+  }
+
+  function aToken(tok,col,ind,typ) {
+    return {token:  tok,
+            column: col,
+            indent: ind,
+            type:   typ};
+  }
+
+  function realToken(type,stream) {
+    return aToken(stream.current(),
+                 stream.column(),
+                 stream.indentation(),
+                 type);
+  }
+
+  function fakeToken(type) {
+    return aToken(type,0,0,type);
+  }
+
+  function peekToken(state,depth) {
+    var len = state.tokenStack.length;
+    var dep = (depth ? depth : 1);
+
+    if (len < dep) {
+      return false;
+    }else{
+      return state.tokenStack[len-dep];
+    }
+  }
+
+  function pushToken(state,token) {
+
+    if (!(token.type == "comment" || token.type == "whitespace")) {
+      state.tokenStack = maybe_drop_pre(state.tokenStack,token);
+      state.tokenStack = maybe_drop_post(state.tokenStack);
+    }
+  }
+
+  function maybe_drop_pre(s,token) {
+    var last = s.length-1;
+
+    if (0 < last && s[last].type === "record" && token.type === "dot") {
+      s.pop();
+    }else if (0 < last && s[last].type === "group") {
+      s.pop();
+      s.push(token);
+    }else{
+      s.push(token);
+    }
+    return s;
+  }
+
+  function maybe_drop_post(s) {
+    if (!s.length) return s
+    var last = s.length-1;
+
+    if (s[last].type === "dot") {
+      return [];
+    }
+    if (last > 1 && s[last].type === "fun" && s[last-1].token === "fun") {
+      return s.slice(0,last-1);
+    }
+    switch (s[last].token) {
+      case "}":    return d(s,{g:["{"]});
+      case "]":    return d(s,{i:["["]});
+      case ")":    return d(s,{i:["("]});
+      case ">>":   return d(s,{i:["<<"]});
+      case "end":  return d(s,{i:["begin","case","fun","if","receive","try"]});
+      case ",":    return d(s,{e:["begin","try","when","->",
+                                  ",","(","[","{","<<"]});
+      case "->":   return d(s,{r:["when"],
+                               m:["try","if","case","receive"]});
+      case ";":    return d(s,{E:["case","fun","if","receive","try","when"]});
+      case "catch":return d(s,{e:["try"]});
+      case "of":   return d(s,{e:["case"]});
+      case "after":return d(s,{e:["receive","try"]});
+      default:     return s;
+    }
+  }
+
+  function d(stack,tt) {
+    // stack is a stack of Token objects.
+    // tt is an object; {type:tokens}
+    // type is a char, tokens is a list of token strings.
+    // The function returns (possibly truncated) stack.
+    // It will descend the stack, looking for a Token such that Token.token
+    //  is a member of tokens. If it does not find that, it will normally (but
+    //  see "E" below) return stack. If it does find a match, it will remove
+    //  all the Tokens between the top and the matched Token.
+    // If type is "m", that is all it does.
+    // If type is "i", it will also remove the matched Token and the top Token.
+    // If type is "g", like "i", but add a fake "group" token at the top.
+    // If type is "r", it will remove the matched Token, but not the top Token.
+    // If type is "e", it will keep the matched Token but not the top Token.
+    // If type is "E", it behaves as for type "e", except if there is no match,
+    //  in which case it will return an empty stack.
+
+    for (var type in tt) {
+      var len = stack.length-1;
+      var tokens = tt[type];
+      for (var i = len-1; -1 < i ; i--) {
+        if (is_member(stack[i].token,tokens)) {
+          var ss = stack.slice(0,i);
+          switch (type) {
+              case "m": return ss.concat(stack[i]).concat(stack[len]);
+              case "r": return ss.concat(stack[len]);
+              case "i": return ss;
+              case "g": return ss.concat(fakeToken("group"));
+              case "E": return ss.concat(stack[i]);
+              case "e": return ss.concat(stack[i]);
+          }
+        }
+      }
+    }
+    return (type == "E" ? [] : stack);
+  }
+
+/////////////////////////////////////////////////////////////////////////////
+// indenter
+
+  function indenter(state,textAfter) {
+    var t;
+    var unit = cmCfg.indentUnit;
+    var wordAfter = wordafter(textAfter);
+    var currT = peekToken(state,1);
+    var prevT = peekToken(state,2);
+
+    if (state.in_string || state.in_atom) {
+      return CodeMirror.Pass;
+    }else if (!prevT) {
+      return 0;
+    }else if (currT.token == "when") {
+      return currT.column+unit;
+    }else if (wordAfter === "when" && prevT.type === "function") {
+      return prevT.indent+unit;
+    }else if (wordAfter === "(" && currT.token === "fun") {
+      return  currT.column+3;
+    }else if (wordAfter === "catch" && (t = getToken(state,["try"]))) {
+      return t.column;
+    }else if (is_member(wordAfter,["end","after","of"])) {
+      t = getToken(state,["begin","case","fun","if","receive","try"]);
+      return t ? t.column : CodeMirror.Pass;
+    }else if (is_member(wordAfter,closeParenWords)) {
+      t = getToken(state,openParenWords);
+      return t ? t.column : CodeMirror.Pass;
+    }else if (is_member(currT.token,[",","|","||"]) ||
+              is_member(wordAfter,[",","|","||"])) {
+      t = postcommaToken(state);
+      return t ? t.column+t.token.length : unit;
+    }else if (currT.token == "->") {
+      if (is_member(prevT.token, ["receive","case","if","try"])) {
+        return prevT.column+unit+unit;
+      }else{
+        return prevT.column+unit;
+      }
+    }else if (is_member(currT.token,openParenWords)) {
+      return currT.column+currT.token.length;
+    }else{
+      t = defaultToken(state);
+      return truthy(t) ? t.column+unit : 0;
+    }
+  }
+
+  function wordafter(str) {
+    var m = str.match(/,|[a-z]+|\}|\]|\)|>>|\|+|\(/);
+
+    return truthy(m) && (m.index === 0) ? m[0] : "";
+  }
+
+  function postcommaToken(state) {
+    var objs = state.tokenStack.slice(0,-1);
+    var i = getTokenIndex(objs,"type",["open_paren"]);
+
+    return truthy(objs[i]) ? objs[i] : false;
+  }
+
+  function defaultToken(state) {
+    var objs = state.tokenStack;
+    var stop = getTokenIndex(objs,"type",["open_paren","separator","keyword"]);
+    var oper = getTokenIndex(objs,"type",["operator"]);
+
+    if (truthy(stop) && truthy(oper) && stop < oper) {
+      return objs[stop+1];
+    } else if (truthy(stop)) {
+      return objs[stop];
+    } else {
+      return false;
+    }
+  }
+
+  function getToken(state,tokens) {
+    var objs = state.tokenStack;
+    var i = getTokenIndex(objs,"token",tokens);
+
+    return truthy(objs[i]) ? objs[i] : false;
+  }
+
+  function getTokenIndex(objs,propname,propvals) {
+
+    for (var i = objs.length-1; -1 < i ; i--) {
+      if (is_member(objs[i][propname],propvals)) {
+        return i;
+      }
+    }
+    return false;
+  }
+
+  function truthy(x) {
+    return (x !== false) && (x != null);
+  }
+
+/////////////////////////////////////////////////////////////////////////////
+// this object defines the mode
+
+  return {
+    startState:
+      function() {
+        return {tokenStack: [],
+                in_string:  false,
+                in_atom:    false};
+      },
+
+    token:
+      function(stream, state) {
+        return tokenizer(stream, state);
+      },
+
+    indent:
+      function(state, textAfter) {
+        return indenter(state,textAfter);
+      },
+
+    lineComment: "%"
+  };
+});
+
+});
diff --git a/public/codemirror/mode/erlang/index.html b/public/codemirror/mode/erlang/index.html
new file mode 100644
index 000000000..6d06a890a
--- /dev/null
+++ b/public/codemirror/mode/erlang/index.html
@@ -0,0 +1,76 @@
+
+
+CodeMirror: Erlang mode
+
+
+
+
+
+
+
+
+
+
+
+

+
Erlang mode

+

+
+    
+
+    
MIME types defined: text/x-erlang.

+  

diff --git a/public/codemirror/mode/factor/factor.js b/public/codemirror/mode/factor/factor.js
new file mode 100644
index 000000000..86d7adf62
--- /dev/null
+++ b/public/codemirror/mode/factor/factor.js
@@ -0,0 +1,83 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// Factor syntax highlight - simple mode
+//
+// by Dimage Sapelkin (https://github.com/kerabromsmu)
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../../addon/mode/simple"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../../addon/mode/simple"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineSimpleMode("factor", {
+    // The start state contains the rules that are intially used
+    start: [
+      // comments
+      {regex: /#?!.*/, token: "comment"},
+      // strings """, multiline --> state
+      {regex: /"""/, token: "string", next: "string3"},
+      {regex: /"/, token: "string", next: "string"},
+      // numbers: dec, hex, unicode, bin, fractional, complex
+      {regex: /(?:[+-]?)(?:0x[\d,a-f]+)|(?:0o[0-7]+)|(?:0b[0,1]+)|(?:\d+.?\d*)/, token: "number"},
+      //{regex: /[+-]?/} //fractional
+      // definition: defining word, defined word, etc
+      {regex: /(\:)(\s+)(\S+)(\s+)(\()/, token: ["keyword", null, "def", null, "keyword"], next: "stack"},
+      // vocabulary using --> state
+      {regex: /USING\:/, token: "keyword", next: "vocabulary"},
+      // vocabulary definition/use
+      {regex: /(USE\:|IN\:)(\s+)(\S+)/, token: ["keyword", null, "variable-2"]},
+      // 
+      {regex: /<\S+>/, token: "builtin"},
+      // "keywords", incl. ; t f . [ ] { } defining words
+      {regex: /;|t|f|if|\.|\[|\]|\{|\}|MAIN:/, token: "keyword"},
+      // any id (?)
+      {regex: /\S+/, token: "variable"},
+
+      {
+        regex: /./,
+        token: null
+      }
+    ],
+    vocabulary: [
+      {regex: /;/, token: "keyword", next: "start"},
+      {regex: /\S+/, token: "variable-2"},
+      {
+        regex: /./,
+        token: null
+      }
+    ],
+    string: [
+      {regex: /(?:[^\\]|\\.)*?"/, token: "string", next: "start"},
+      {regex: /.*/, token: "string"}
+    ],
+    string3: [
+      {regex: /(?:[^\\]|\\.)*?"""/, token: "string", next: "start"},
+      {regex: /.*/, token: "string"}
+    ],
+    stack: [
+      {regex: /\)/, token: "meta", next: "start"},
+      {regex: /--/, token: "meta"},
+      {regex: /\S+/, token: "variable-3"},
+      {
+        regex: /./,
+        token: null
+      }
+    ],
+    // The meta property contains global information about the mode. It
+    // can contain properties like lineComment, which are supported by
+    // all modes, and also directives like dontIndentStates, which are
+    // specific to simple modes.
+    meta: {
+      dontIndentStates: ["start", "vocabulary", "string", "string3", "stack"],
+      lineComment: [ "!", "#!" ]
+    }
+  });
+
+  CodeMirror.defineMIME("text/x-factor", "factor");
+});
diff --git a/public/codemirror/mode/factor/index.html b/public/codemirror/mode/factor/index.html
new file mode 100644
index 000000000..9f1548914
--- /dev/null
+++ b/public/codemirror/mode/factor/index.html
@@ -0,0 +1,77 @@
+
+
+CodeMirror: Factor mode
+
+
+
+
+
+
+
+
+
+
+
+

+
+
Factor mode

+
+

+  

+
+
+

+
Simple mode that handles Factor Syntax (Factor on WikiPedia).

+
+
MIME types defined: text/x-factor.

+
+

diff --git a/public/codemirror/mode/fcl/fcl.js b/public/codemirror/mode/fcl/fcl.js
new file mode 100644
index 000000000..518116976
--- /dev/null
+++ b/public/codemirror/mode/fcl/fcl.js
@@ -0,0 +1,173 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("fcl", function(config) {
+  var indentUnit = config.indentUnit;
+
+  var keywords = {
+      "term": true,
+      "method": true, "accu": true,
+      "rule": true, "then": true, "is": true, "and": true, "or": true,
+      "if": true, "default": true
+  };
+
+  var start_blocks = {
+      "var_input": true,
+      "var_output": true,
+      "fuzzify": true,
+      "defuzzify": true,
+      "function_block": true,
+      "ruleblock": true
+  };
+
+  var end_blocks = {
+      "end_ruleblock": true,
+      "end_defuzzify": true,
+      "end_function_block": true,
+      "end_fuzzify": true,
+      "end_var": true
+  };
+
+  var atoms = {
+      "true": true, "false": true, "nan": true,
+      "real": true, "min": true, "max": true, "cog": true, "cogs": true
+  };
+
+  var isOperatorChar = /[+\-*&^%:=<>!|\/]/;
+
+  function tokenBase(stream, state) {
+    var ch = stream.next();
+
+    if (/[\d\.]/.test(ch)) {
+      if (ch == ".") {
+        stream.match(/^[0-9]+([eE][\-+]?[0-9]+)?/);
+      } else if (ch == "0") {
+        stream.match(/^[xX][0-9a-fA-F]+/) || stream.match(/^0[0-7]+/);
+      } else {
+        stream.match(/^[0-9]*\.?[0-9]*([eE][\-+]?[0-9]+)?/);
+      }
+      return "number";
+    }
+
+    if (ch == "/" || ch == "(") {
+      if (stream.eat("*")) {
+        state.tokenize = tokenComment;
+        return tokenComment(stream, state);
+      }
+      if (stream.eat("/")) {
+        stream.skipToEnd();
+        return "comment";
+      }
+    }
+    if (isOperatorChar.test(ch)) {
+      stream.eatWhile(isOperatorChar);
+      return "operator";
+    }
+    stream.eatWhile(/[\w\$_\xa1-\uffff]/);
+
+    var cur = stream.current().toLowerCase();
+    if (keywords.propertyIsEnumerable(cur) ||
+        start_blocks.propertyIsEnumerable(cur) ||
+        end_blocks.propertyIsEnumerable(cur)) {
+      return "keyword";
+    }
+    if (atoms.propertyIsEnumerable(cur)) return "atom";
+    return "variable";
+  }
+
+
+  function tokenComment(stream, state) {
+    var maybeEnd = false, ch;
+    while (ch = stream.next()) {
+      if ((ch == "/" || ch == ")") && maybeEnd) {
+        state.tokenize = tokenBase;
+        break;
+      }
+      maybeEnd = (ch == "*");
+    }
+    return "comment";
+  }
+
+  function Context(indented, column, type, align, prev) {
+    this.indented = indented;
+    this.column = column;
+    this.type = type;
+    this.align = align;
+    this.prev = prev;
+  }
+
+  function pushContext(state, col, type) {
+    return state.context = new Context(state.indented, col, type, null, state.context);
+  }
+
+  function popContext(state) {
+    if (!state.context.prev) return;
+    var t = state.context.type;
+    if (t == "end_block")
+      state.indented = state.context.indented;
+    return state.context = state.context.prev;
+  }
+
+  // Interface
+
+  return {
+    startState: function(basecolumn) {
+      return {
+        tokenize: null,
+        context: new Context((basecolumn || 0) - indentUnit, 0, "top", false),
+        indented: 0,
+        startOfLine: true
+      };
+    },
+
+    token: function(stream, state) {
+        var ctx = state.context;
+        if (stream.sol()) {
+            if (ctx.align == null) ctx.align = false;
+            state.indented = stream.indentation();
+            state.startOfLine = true;
+        }
+        if (stream.eatSpace()) return null;
+
+        var style = (state.tokenize || tokenBase)(stream, state);
+        if (style == "comment") return style;
+        if (ctx.align == null) ctx.align = true;
+
+        var cur = stream.current().toLowerCase();
+
+        if (start_blocks.propertyIsEnumerable(cur)) pushContext(state, stream.column(), "end_block");
+        else if (end_blocks.propertyIsEnumerable(cur))  popContext(state);
+
+        state.startOfLine = false;
+        return style;
+    },
+
+    indent: function(state, textAfter) {
+      if (state.tokenize != tokenBase && state.tokenize != null) return 0;
+      var ctx = state.context;
+
+      var closing = end_blocks.propertyIsEnumerable(textAfter);
+      if (ctx.align) return ctx.column + (closing ? 0 : 1);
+      else return ctx.indented + (closing ? 0 : indentUnit);
+    },
+
+    electricChars: "ryk",
+    fold: "brace",
+    blockCommentStart: "(*",
+    blockCommentEnd: "*)",
+    lineComment: "//"
+  };
+});
+
+CodeMirror.defineMIME("text/x-fcl", "fcl");
+});
diff --git a/public/codemirror/mode/fcl/index.html b/public/codemirror/mode/fcl/index.html
new file mode 100644
index 000000000..3c18d0b3c
--- /dev/null
+++ b/public/codemirror/mode/fcl/index.html
@@ -0,0 +1,108 @@
+
+
+CodeMirror: FCL mode
+
+
+
+
+
+
+
+
+
+
+
+

+
FCL mode

+

+
+    
+
+    
MIME type: text/x-fcl

+  

diff --git a/public/codemirror/mode/forth/forth.js b/public/codemirror/mode/forth/forth.js
new file mode 100644
index 000000000..1f519d886
--- /dev/null
+++ b/public/codemirror/mode/forth/forth.js
@@ -0,0 +1,180 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// Author: Aliaksei Chapyzhenka
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  function toWordList(words) {
+    var ret = [];
+    words.split(' ').forEach(function(e){
+      ret.push({name: e});
+    });
+    return ret;
+  }
+
+  var coreWordList = toWordList(
+'INVERT AND OR XOR\
+ 2* 2/ LSHIFT RSHIFT\
+ 0= = 0< < > U< MIN MAX\
+ 2DROP 2DUP 2OVER 2SWAP ?DUP DEPTH DROP DUP OVER ROT SWAP\
+ >R R> R@\
+ + - 1+ 1- ABS NEGATE\
+ S>D * M* UM*\
+ FM/MOD SM/REM UM/MOD */ */MOD / /MOD MOD\
+ HERE , @ ! CELL+ CELLS C, C@ C! CHARS 2@ 2!\
+ ALIGN ALIGNED +! ALLOT\
+ CHAR [CHAR] [ ] BL\
+ FIND EXECUTE IMMEDIATE COUNT LITERAL STATE\
+ ; DOES> >BODY\
+ EVALUATE\
+ SOURCE >IN\
+ <# # #S #> HOLD SIGN BASE >NUMBER HEX DECIMAL\
+ FILL MOVE\
+ . CR EMIT SPACE SPACES TYPE U. .R U.R\
+ ACCEPT\
+ TRUE FALSE\
+ <> U> 0<> 0>\
+ NIP TUCK ROLL PICK\
+ 2>R 2R@ 2R>\
+ WITHIN UNUSED MARKER\
+ I J\
+ TO\
+ COMPILE, [COMPILE]\
+ SAVE-INPUT RESTORE-INPUT\
+ PAD ERASE\
+ 2LITERAL DNEGATE\
+ D- D+ D0< D0= D2* D2/ D< D= DMAX DMIN D>S DABS\
+ M+ M*/ D. D.R 2ROT DU<\
+ CATCH THROW\
+ FREE RESIZE ALLOCATE\
+ CS-PICK CS-ROLL\
+ GET-CURRENT SET-CURRENT FORTH-WORDLIST GET-ORDER SET-ORDER\
+ PREVIOUS SEARCH-WORDLIST WORDLIST FIND ALSO ONLY FORTH DEFINITIONS ORDER\
+ -TRAILING /STRING SEARCH COMPARE CMOVE CMOVE> BLANK SLITERAL');
+
+  var immediateWordList = toWordList('IF ELSE THEN BEGIN WHILE REPEAT UNTIL RECURSE [IF] [ELSE] [THEN] ?DO DO LOOP +LOOP UNLOOP LEAVE EXIT AGAIN CASE OF ENDOF ENDCASE');
+
+  CodeMirror.defineMode('forth', function() {
+    function searchWordList (wordList, word) {
+      var i;
+      for (i = wordList.length - 1; i >= 0; i--) {
+        if (wordList[i].name === word.toUpperCase()) {
+          return wordList[i];
+        }
+      }
+      return undefined;
+    }
+  return {
+    startState: function() {
+      return {
+        state: '',
+        base: 10,
+        coreWordList: coreWordList,
+        immediateWordList: immediateWordList,
+        wordList: []
+      };
+    },
+    token: function (stream, stt) {
+      var mat;
+      if (stream.eatSpace()) {
+        return null;
+      }
+      if (stt.state === '') { // interpretation
+        if (stream.match(/^(\]|:NONAME)(\s|$)/i)) {
+          stt.state = ' compilation';
+          return 'builtin compilation';
+        }
+        mat = stream.match(/^(\:)\s+(\S+)(\s|$)+/);
+        if (mat) {
+          stt.wordList.push({name: mat[2].toUpperCase()});
+          stt.state = ' compilation';
+          return 'def' + stt.state;
+        }
+        mat = stream.match(/^(VARIABLE|2VARIABLE|CONSTANT|2CONSTANT|CREATE|POSTPONE|VALUE|WORD)\s+(\S+)(\s|$)+/i);
+        if (mat) {
+          stt.wordList.push({name: mat[2].toUpperCase()});
+          return 'def' + stt.state;
+        }
+        mat = stream.match(/^(\'|\[\'\])\s+(\S+)(\s|$)+/);
+        if (mat) {
+          return 'builtin' + stt.state;
+        }
+        } else { // compilation
+        // ; [
+        if (stream.match(/^(\;|\[)(\s)/)) {
+          stt.state = '';
+          stream.backUp(1);
+          return 'builtin compilation';
+        }
+        if (stream.match(/^(\;|\[)($)/)) {
+          stt.state = '';
+          return 'builtin compilation';
+        }
+        if (stream.match(/^(POSTPONE)\s+\S+(\s|$)+/)) {
+          return 'builtin';
+        }
+      }
+
+      // dynamic wordlist
+      mat = stream.match(/^(\S+)(\s+|$)/);
+      if (mat) {
+        if (searchWordList(stt.wordList, mat[1]) !== undefined) {
+          return 'variable' + stt.state;
+        }
+
+        // comments
+        if (mat[1] === '\\') {
+          stream.skipToEnd();
+            return 'comment' + stt.state;
+          }
+
+          // core words
+          if (searchWordList(stt.coreWordList, mat[1]) !== undefined) {
+            return 'builtin' + stt.state;
+          }
+          if (searchWordList(stt.immediateWordList, mat[1]) !== undefined) {
+            return 'keyword' + stt.state;
+          }
+
+          if (mat[1] === '(') {
+            stream.eatWhile(function (s) { return s !== ')'; });
+            stream.eat(')');
+            return 'comment' + stt.state;
+          }
+
+          // // strings
+          if (mat[1] === '.(') {
+            stream.eatWhile(function (s) { return s !== ')'; });
+            stream.eat(')');
+            return 'string' + stt.state;
+          }
+          if (mat[1] === 'S"' || mat[1] === '."' || mat[1] === 'C"') {
+            stream.eatWhile(function (s) { return s !== '"'; });
+            stream.eat('"');
+            return 'string' + stt.state;
+          }
+
+          // numbers
+          if (mat[1] - 0xfffffffff) {
+            return 'number' + stt.state;
+          }
+          // if (mat[1].match(/^[-+]?[0-9]+\.[0-9]*/)) {
+          //     return 'number' + stt.state;
+          // }
+
+          return 'atom' + stt.state;
+        }
+      }
+    };
+  });
+  CodeMirror.defineMIME("text/x-forth", "forth");
+});
diff --git a/public/codemirror/mode/forth/index.html b/public/codemirror/mode/forth/index.html
new file mode 100644
index 000000000..ae8cd3458
--- /dev/null
+++ b/public/codemirror/mode/forth/index.html
@@ -0,0 +1,75 @@
+
+
+CodeMirror: Forth mode
+
+
+
+
+
+
+
+
+
+
+
+

+
+
Forth mode

+
+

+  

+
+
+
+
Simple mode that handle Forth-Syntax (Forth on WikiPedia).

+
+
MIME types defined: text/x-forth.

+
+

diff --git a/public/codemirror/mode/fortran/fortran.js b/public/codemirror/mode/fortran/fortran.js
new file mode 100644
index 000000000..4d88f006a
--- /dev/null
+++ b/public/codemirror/mode/fortran/fortran.js
@@ -0,0 +1,188 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("fortran", function() {
+  function words(array) {
+    var keys = {};
+    for (var i = 0; i < array.length; ++i) {
+      keys[array[i]] = true;
+    }
+    return keys;
+  }
+
+  var keywords = words([
+                  "abstract", "accept", "allocatable", "allocate",
+                  "array", "assign", "asynchronous", "backspace",
+                  "bind", "block", "byte", "call", "case",
+                  "class", "close", "common", "contains",
+                  "continue", "cycle", "data", "deallocate",
+                  "decode", "deferred", "dimension", "do",
+                  "elemental", "else", "encode", "end",
+                  "endif", "entry", "enumerator", "equivalence",
+                  "exit", "external", "extrinsic", "final",
+                  "forall", "format", "function", "generic",
+                  "go", "goto", "if", "implicit", "import", "include",
+                  "inquire", "intent", "interface", "intrinsic",
+                  "module", "namelist", "non_intrinsic",
+                  "non_overridable", "none", "nopass",
+                  "nullify", "open", "optional", "options",
+                  "parameter", "pass", "pause", "pointer",
+                  "print", "private", "program", "protected",
+                  "public", "pure", "read", "recursive", "result",
+                  "return", "rewind", "save", "select", "sequence",
+                  "stop", "subroutine", "target", "then", "to", "type",
+                  "use", "value", "volatile", "where", "while",
+                  "write"]);
+  var builtins = words(["abort", "abs", "access", "achar", "acos",
+                          "adjustl", "adjustr", "aimag", "aint", "alarm",
+                          "all", "allocated", "alog", "amax", "amin",
+                          "amod", "and", "anint", "any", "asin",
+                          "associated", "atan", "besj", "besjn", "besy",
+                          "besyn", "bit_size", "btest", "cabs", "ccos",
+                          "ceiling", "cexp", "char", "chdir", "chmod",
+                          "clog", "cmplx", "command_argument_count",
+                          "complex", "conjg", "cos", "cosh", "count",
+                          "cpu_time", "cshift", "csin", "csqrt", "ctime",
+                          "c_funloc", "c_loc", "c_associated", "c_null_ptr",
+                          "c_null_funptr", "c_f_pointer", "c_null_char",
+                          "c_alert", "c_backspace", "c_form_feed",
+                          "c_new_line", "c_carriage_return",
+                          "c_horizontal_tab", "c_vertical_tab", "dabs",
+                          "dacos", "dasin", "datan", "date_and_time",
+                          "dbesj", "dbesj", "dbesjn", "dbesy", "dbesy",
+                          "dbesyn", "dble", "dcos", "dcosh", "ddim", "derf",
+                          "derfc", "dexp", "digits", "dim", "dint", "dlog",
+                          "dlog", "dmax", "dmin", "dmod", "dnint",
+                          "dot_product", "dprod", "dsign", "dsinh",
+                          "dsin", "dsqrt", "dtanh", "dtan", "dtime",
+                          "eoshift", "epsilon", "erf", "erfc", "etime",
+                          "exit", "exp", "exponent", "extends_type_of",
+                          "fdate", "fget", "fgetc", "float", "floor",
+                          "flush", "fnum", "fputc", "fput", "fraction",
+                          "fseek", "fstat", "ftell", "gerror", "getarg",
+                          "get_command", "get_command_argument",
+                          "get_environment_variable", "getcwd",
+                          "getenv", "getgid", "getlog", "getpid",
+                          "getuid", "gmtime", "hostnm", "huge", "iabs",
+                          "iachar", "iand", "iargc", "ibclr", "ibits",
+                          "ibset", "ichar", "idate", "idim", "idint",
+                          "idnint", "ieor", "ierrno", "ifix", "imag",
+                          "imagpart", "index", "int", "ior", "irand",
+                          "isatty", "ishft", "ishftc", "isign",
+                          "iso_c_binding", "is_iostat_end", "is_iostat_eor",
+                          "itime", "kill", "kind", "lbound", "len", "len_trim",
+                          "lge", "lgt", "link", "lle", "llt", "lnblnk", "loc",
+                          "log", "logical", "long", "lshift", "lstat", "ltime",
+                          "matmul", "max", "maxexponent", "maxloc", "maxval",
+                          "mclock", "merge", "move_alloc", "min", "minexponent",
+                          "minloc", "minval", "mod", "modulo", "mvbits",
+                          "nearest", "new_line", "nint", "not", "or", "pack",
+                          "perror", "precision", "present", "product", "radix",
+                          "rand", "random_number", "random_seed", "range",
+                          "real", "realpart", "rename", "repeat", "reshape",
+                          "rrspacing", "rshift", "same_type_as", "scale",
+                          "scan", "second", "selected_int_kind",
+                          "selected_real_kind", "set_exponent", "shape",
+                          "short", "sign", "signal", "sinh", "sin", "sleep",
+                          "sngl", "spacing", "spread", "sqrt", "srand", "stat",
+                          "sum", "symlnk", "system", "system_clock", "tan",
+                          "tanh", "time", "tiny", "transfer", "transpose",
+                          "trim", "ttynam", "ubound", "umask", "unlink",
+                          "unpack", "verify", "xor", "zabs", "zcos", "zexp",
+                          "zlog", "zsin", "zsqrt"]);
+
+    var dataTypes =  words(["c_bool", "c_char", "c_double", "c_double_complex",
+                     "c_float", "c_float_complex", "c_funptr", "c_int",
+                     "c_int16_t", "c_int32_t", "c_int64_t", "c_int8_t",
+                     "c_int_fast16_t", "c_int_fast32_t", "c_int_fast64_t",
+                     "c_int_fast8_t", "c_int_least16_t", "c_int_least32_t",
+                     "c_int_least64_t", "c_int_least8_t", "c_intmax_t",
+                     "c_intptr_t", "c_long", "c_long_double",
+                     "c_long_double_complex", "c_long_long", "c_ptr",
+                     "c_short", "c_signed_char", "c_size_t", "character",
+                     "complex", "double", "integer", "logical", "real"]);
+  var isOperatorChar = /[+\-*&=<>\/\:]/;
+  var litOperator = new RegExp("(\.and\.|\.or\.|\.eq\.|\.lt\.|\.le\.|\.gt\.|\.ge\.|\.ne\.|\.not\.|\.eqv\.|\.neqv\.)", "i");
+
+  function tokenBase(stream, state) {
+
+    if (stream.match(litOperator)){
+        return 'operator';
+    }
+
+    var ch = stream.next();
+    if (ch == "!") {
+      stream.skipToEnd();
+      return "comment";
+    }
+    if (ch == '"' || ch == "'") {
+      state.tokenize = tokenString(ch);
+      return state.tokenize(stream, state);
+    }
+    if (/[\[\]\(\),]/.test(ch)) {
+      return null;
+    }
+    if (/\d/.test(ch)) {
+      stream.eatWhile(/[\w\.]/);
+      return "number";
+    }
+    if (isOperatorChar.test(ch)) {
+      stream.eatWhile(isOperatorChar);
+      return "operator";
+    }
+    stream.eatWhile(/[\w\$_]/);
+    var word = stream.current().toLowerCase();
+
+    if (keywords.hasOwnProperty(word)){
+            return 'keyword';
+    }
+    if (builtins.hasOwnProperty(word) || dataTypes.hasOwnProperty(word)) {
+            return 'builtin';
+    }
+    return "variable";
+  }
+
+  function tokenString(quote) {
+    return function(stream, state) {
+      var escaped = false, next, end = false;
+      while ((next = stream.next()) != null) {
+        if (next == quote && !escaped) {
+            end = true;
+            break;
+        }
+        escaped = !escaped && next == "\\";
+      }
+      if (end || !escaped) state.tokenize = null;
+      return "string";
+    };
+  }
+
+  // Interface
+
+  return {
+    startState: function() {
+      return {tokenize: null};
+    },
+
+    token: function(stream, state) {
+      if (stream.eatSpace()) return null;
+      var style = (state.tokenize || tokenBase)(stream, state);
+      if (style == "comment" || style == "meta") return style;
+      return style;
+    }
+  };
+});
+
+CodeMirror.defineMIME("text/x-fortran", "fortran");
+
+});
diff --git a/public/codemirror/mode/fortran/index.html b/public/codemirror/mode/fortran/index.html
new file mode 100644
index 000000000..9aed0efcc
--- /dev/null
+++ b/public/codemirror/mode/fortran/index.html
@@ -0,0 +1,81 @@
+
+
+CodeMirror: Fortran mode
+
+
+
+
+
+
+
+
+
+

+
Fortran mode

+
+
+

+
+    
+
+    
MIME types defined: text/x-fortran.

+  

diff --git a/public/codemirror/mode/gas/gas.js b/public/codemirror/mode/gas/gas.js
new file mode 100644
index 000000000..0c74bedc5
--- /dev/null
+++ b/public/codemirror/mode/gas/gas.js
@@ -0,0 +1,345 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("gas", function(_config, parserConfig) {
+  'use strict';
+
+  // If an architecture is specified, its initialization function may
+  // populate this array with custom parsing functions which will be
+  // tried in the event that the standard functions do not find a match.
+  var custom = [];
+
+  // The symbol used to start a line comment changes based on the target
+  // architecture.
+  // If no architecture is pased in "parserConfig" then only multiline
+  // comments will have syntax support.
+  var lineCommentStartSymbol = "";
+
+  // These directives are architecture independent.
+  // Machine specific directives should go in their respective
+  // architecture initialization function.
+  // Reference:
+  // http://sourceware.org/binutils/docs/as/Pseudo-Ops.html#Pseudo-Ops
+  var directives = {
+    ".abort" : "builtin",
+    ".align" : "builtin",
+    ".altmacro" : "builtin",
+    ".ascii" : "builtin",
+    ".asciz" : "builtin",
+    ".balign" : "builtin",
+    ".balignw" : "builtin",
+    ".balignl" : "builtin",
+    ".bundle_align_mode" : "builtin",
+    ".bundle_lock" : "builtin",
+    ".bundle_unlock" : "builtin",
+    ".byte" : "builtin",
+    ".cfi_startproc" : "builtin",
+    ".comm" : "builtin",
+    ".data" : "builtin",
+    ".def" : "builtin",
+    ".desc" : "builtin",
+    ".dim" : "builtin",
+    ".double" : "builtin",
+    ".eject" : "builtin",
+    ".else" : "builtin",
+    ".elseif" : "builtin",
+    ".end" : "builtin",
+    ".endef" : "builtin",
+    ".endfunc" : "builtin",
+    ".endif" : "builtin",
+    ".equ" : "builtin",
+    ".equiv" : "builtin",
+    ".eqv" : "builtin",
+    ".err" : "builtin",
+    ".error" : "builtin",
+    ".exitm" : "builtin",
+    ".extern" : "builtin",
+    ".fail" : "builtin",
+    ".file" : "builtin",
+    ".fill" : "builtin",
+    ".float" : "builtin",
+    ".func" : "builtin",
+    ".global" : "builtin",
+    ".gnu_attribute" : "builtin",
+    ".hidden" : "builtin",
+    ".hword" : "builtin",
+    ".ident" : "builtin",
+    ".if" : "builtin",
+    ".incbin" : "builtin",
+    ".include" : "builtin",
+    ".int" : "builtin",
+    ".internal" : "builtin",
+    ".irp" : "builtin",
+    ".irpc" : "builtin",
+    ".lcomm" : "builtin",
+    ".lflags" : "builtin",
+    ".line" : "builtin",
+    ".linkonce" : "builtin",
+    ".list" : "builtin",
+    ".ln" : "builtin",
+    ".loc" : "builtin",
+    ".loc_mark_labels" : "builtin",
+    ".local" : "builtin",
+    ".long" : "builtin",
+    ".macro" : "builtin",
+    ".mri" : "builtin",
+    ".noaltmacro" : "builtin",
+    ".nolist" : "builtin",
+    ".octa" : "builtin",
+    ".offset" : "builtin",
+    ".org" : "builtin",
+    ".p2align" : "builtin",
+    ".popsection" : "builtin",
+    ".previous" : "builtin",
+    ".print" : "builtin",
+    ".protected" : "builtin",
+    ".psize" : "builtin",
+    ".purgem" : "builtin",
+    ".pushsection" : "builtin",
+    ".quad" : "builtin",
+    ".reloc" : "builtin",
+    ".rept" : "builtin",
+    ".sbttl" : "builtin",
+    ".scl" : "builtin",
+    ".section" : "builtin",
+    ".set" : "builtin",
+    ".short" : "builtin",
+    ".single" : "builtin",
+    ".size" : "builtin",
+    ".skip" : "builtin",
+    ".sleb128" : "builtin",
+    ".space" : "builtin",
+    ".stab" : "builtin",
+    ".string" : "builtin",
+    ".struct" : "builtin",
+    ".subsection" : "builtin",
+    ".symver" : "builtin",
+    ".tag" : "builtin",
+    ".text" : "builtin",
+    ".title" : "builtin",
+    ".type" : "builtin",
+    ".uleb128" : "builtin",
+    ".val" : "builtin",
+    ".version" : "builtin",
+    ".vtable_entry" : "builtin",
+    ".vtable_inherit" : "builtin",
+    ".warning" : "builtin",
+    ".weak" : "builtin",
+    ".weakref" : "builtin",
+    ".word" : "builtin"
+  };
+
+  var registers = {};
+
+  function x86(_parserConfig) {
+    lineCommentStartSymbol = "#";
+
+    registers.ax  = "variable";
+    registers.eax = "variable-2";
+    registers.rax = "variable-3";
+
+    registers.bx  = "variable";
+    registers.ebx = "variable-2";
+    registers.rbx = "variable-3";
+
+    registers.cx  = "variable";
+    registers.ecx = "variable-2";
+    registers.rcx = "variable-3";
+
+    registers.dx  = "variable";
+    registers.edx = "variable-2";
+    registers.rdx = "variable-3";
+
+    registers.si  = "variable";
+    registers.esi = "variable-2";
+    registers.rsi = "variable-3";
+
+    registers.di  = "variable";
+    registers.edi = "variable-2";
+    registers.rdi = "variable-3";
+
+    registers.sp  = "variable";
+    registers.esp = "variable-2";
+    registers.rsp = "variable-3";
+
+    registers.bp  = "variable";
+    registers.ebp = "variable-2";
+    registers.rbp = "variable-3";
+
+    registers.ip  = "variable";
+    registers.eip = "variable-2";
+    registers.rip = "variable-3";
+
+    registers.cs  = "keyword";
+    registers.ds  = "keyword";
+    registers.ss  = "keyword";
+    registers.es  = "keyword";
+    registers.fs  = "keyword";
+    registers.gs  = "keyword";
+  }
+
+  function armv6(_parserConfig) {
+    // Reference:
+    // http://infocenter.arm.com/help/topic/com.arm.doc.qrc0001l/QRC0001_UAL.pdf
+    // http://infocenter.arm.com/help/topic/com.arm.doc.ddi0301h/DDI0301H_arm1176jzfs_r0p7_trm.pdf
+    lineCommentStartSymbol = "@";
+    directives.syntax = "builtin";
+
+    registers.r0  = "variable";
+    registers.r1  = "variable";
+    registers.r2  = "variable";
+    registers.r3  = "variable";
+    registers.r4  = "variable";
+    registers.r5  = "variable";
+    registers.r6  = "variable";
+    registers.r7  = "variable";
+    registers.r8  = "variable";
+    registers.r9  = "variable";
+    registers.r10 = "variable";
+    registers.r11 = "variable";
+    registers.r12 = "variable";
+
+    registers.sp  = "variable-2";
+    registers.lr  = "variable-2";
+    registers.pc  = "variable-2";
+    registers.r13 = registers.sp;
+    registers.r14 = registers.lr;
+    registers.r15 = registers.pc;
+
+    custom.push(function(ch, stream) {
+      if (ch === '#') {
+        stream.eatWhile(/\w/);
+        return "number";
+      }
+    });
+  }
+
+  var arch = (parserConfig.architecture || "x86").toLowerCase();
+  if (arch === "x86") {
+    x86(parserConfig);
+  } else if (arch === "arm" || arch === "armv6") {
+    armv6(parserConfig);
+  }
+
+  function nextUntilUnescaped(stream, end) {
+    var escaped = false, next;
+    while ((next = stream.next()) != null) {
+      if (next === end && !escaped) {
+        return false;
+      }
+      escaped = !escaped && next === "\\";
+    }
+    return escaped;
+  }
+
+  function clikeComment(stream, state) {
+    var maybeEnd = false, ch;
+    while ((ch = stream.next()) != null) {
+      if (ch === "/" && maybeEnd) {
+        state.tokenize = null;
+        break;
+      }
+      maybeEnd = (ch === "*");
+    }
+    return "comment";
+  }
+
+  return {
+    startState: function() {
+      return {
+        tokenize: null
+      };
+    },
+
+    token: function(stream, state) {
+      if (state.tokenize) {
+        return state.tokenize(stream, state);
+      }
+
+      if (stream.eatSpace()) {
+        return null;
+      }
+
+      var style, cur, ch = stream.next();
+
+      if (ch === "/") {
+        if (stream.eat("*")) {
+          state.tokenize = clikeComment;
+          return clikeComment(stream, state);
+        }
+      }
+
+      if (ch === lineCommentStartSymbol) {
+        stream.skipToEnd();
+        return "comment";
+      }
+
+      if (ch === '"') {
+        nextUntilUnescaped(stream, '"');
+        return "string";
+      }
+
+      if (ch === '.') {
+        stream.eatWhile(/\w/);
+        cur = stream.current().toLowerCase();
+        style = directives[cur];
+        return style || null;
+      }
+
+      if (ch === '=') {
+        stream.eatWhile(/\w/);
+        return "tag";
+      }
+
+      if (ch === '{') {
+        return "braket";
+      }
+
+      if (ch === '}') {
+        return "braket";
+      }
+
+      if (/\d/.test(ch)) {
+        if (ch === "0" && stream.eat("x")) {
+          stream.eatWhile(/[0-9a-fA-F]/);
+          return "number";
+        }
+        stream.eatWhile(/\d/);
+        return "number";
+      }
+
+      if (/\w/.test(ch)) {
+        stream.eatWhile(/\w/);
+        if (stream.eat(":")) {
+          return 'tag';
+        }
+        cur = stream.current().toLowerCase();
+        style = registers[cur];
+        return style || null;
+      }
+
+      for (var i = 0; i < custom.length; i++) {
+        style = custom[i](ch, stream, state);
+        if (style) {
+          return style;
+        }
+      }
+    },
+
+    lineComment: lineCommentStartSymbol,
+    blockCommentStart: "/*",
+    blockCommentEnd: "*/"
+  };
+});
+
+});
diff --git a/public/codemirror/mode/gas/index.html b/public/codemirror/mode/gas/index.html
new file mode 100644
index 000000000..df75ca2db
--- /dev/null
+++ b/public/codemirror/mode/gas/index.html
@@ -0,0 +1,68 @@
+
+
+CodeMirror: Gas mode
+
+
+
+
+
+
+
+
+
+

+
Gas mode

+

+
+        

+
+        
+
+        
Handles AT&T assembler syntax (more specifically this handles
+        the GNU Assembler (gas) syntax.)
+        It takes a single optional configuration parameter:
+        architecture, which can be one of "ARM",
+        "ARMv6" or "x86".
+        Including the parameter adds syntax for the registers and special
+        directives for the supplied architecture.
+
+        
MIME types defined: text/x-gas

+    

diff --git a/public/codemirror/mode/gfm/gfm.js b/public/codemirror/mode/gfm/gfm.js
new file mode 100644
index 000000000..6e74ad4fd
--- /dev/null
+++ b/public/codemirror/mode/gfm/gfm.js
@@ -0,0 +1,130 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../markdown/markdown"), require("../../addon/mode/overlay"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../markdown/markdown", "../../addon/mode/overlay"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+var urlRE = /^((?:(?:aaas?|about|acap|adiumxtra|af[ps]|aim|apt|attachment|aw|beshare|bitcoin|bolo|callto|cap|chrome(?:-extension)?|cid|coap|com-eventbrite-attendee|content|crid|cvs|data|dav|dict|dlna-(?:playcontainer|playsingle)|dns|doi|dtn|dvb|ed2k|facetime|feed|file|finger|fish|ftp|geo|gg|git|gizmoproject|go|gopher|gtalk|h323|hcp|https?|iax|icap|icon|im|imap|info|ipn|ipp|irc[6s]?|iris(?:\.beep|\.lwz|\.xpc|\.xpcs)?|itms|jar|javascript|jms|keyparc|lastfm|ldaps?|magnet|mailto|maps|market|message|mid|mms|ms-help|msnim|msrps?|mtqp|mumble|mupdate|mvn|news|nfs|nih?|nntp|notes|oid|opaquelocktoken|palm|paparazzi|platform|pop|pres|proxy|psyc|query|res(?:ource)?|rmi|rsync|rtmp|rtsp|secondlife|service|session|sftp|sgn|shttp|sieve|sips?|skype|sm[bs]|snmp|soap\.beeps?|soldat|spotify|ssh|steam|svn|tag|teamspeak|tel(?:net)?|tftp|things|thismessage|tip|tn3270|tv|udp|unreal|urn|ut2004|vemmi|ventrilo|view-source|webcal|wss?|wtai|wyciwyg|xcon(?:-userid)?|xfire|xmlrpc\.beeps?|xmpp|xri|ymsgr|z39\.50[rs]?):(?:\/{1,3}|[a-z0-9%])|www\d{0,3}[.]|[a-z0-9.\-]+[.][a-z]{2,4}\/)(?:[^\s()<>]|\([^\s()<>]*\))+(?:\([^\s()<>]*\)|[^\s`*!()\[\]{};:'".,<>?«»“”‘’]))/i
+
+CodeMirror.defineMode("gfm", function(config, modeConfig) {
+  var codeDepth = 0;
+  function blankLine(state) {
+    state.code = false;
+    return null;
+  }
+  var gfmOverlay = {
+    startState: function() {
+      return {
+        code: false,
+        codeBlock: false,
+        ateSpace: false
+      };
+    },
+    copyState: function(s) {
+      return {
+        code: s.code,
+        codeBlock: s.codeBlock,
+        ateSpace: s.ateSpace
+      };
+    },
+    token: function(stream, state) {
+      state.combineTokens = null;
+
+      // Hack to prevent formatting override inside code blocks (block and inline)
+      if (state.codeBlock) {
+        if (stream.match(/^```+/)) {
+          state.codeBlock = false;
+          return null;
+        }
+        stream.skipToEnd();
+        return null;
+      }
+      if (stream.sol()) {
+        state.code = false;
+      }
+      if (stream.sol() && stream.match(/^```+/)) {
+        stream.skipToEnd();
+        state.codeBlock = true;
+        return null;
+      }
+      // If this block is changed, it may need to be updated in Markdown mode
+      if (stream.peek() === '`') {
+        stream.next();
+        var before = stream.pos;
+        stream.eatWhile('`');
+        var difference = 1 + stream.pos - before;
+        if (!state.code) {
+          codeDepth = difference;
+          state.code = true;
+        } else {
+          if (difference === codeDepth) { // Must be exact
+            state.code = false;
+          }
+        }
+        return null;
+      } else if (state.code) {
+        stream.next();
+        return null;
+      }
+      // Check if space. If so, links can be formatted later on
+      if (stream.eatSpace()) {
+        state.ateSpace = true;
+        return null;
+      }
+      if (stream.sol() || state.ateSpace) {
+        state.ateSpace = false;
+        if (modeConfig.gitHubSpice !== false) {
+          if(stream.match(/^(?:[a-zA-Z0-9\-_]+\/)?(?:[a-zA-Z0-9\-_]+@)?(?:[a-f0-9]{7,40}\b)/)) {
+            // User/Project@SHA
+            // User@SHA
+            // SHA
+            state.combineTokens = true;
+            return "link";
+          } else if (stream.match(/^(?:[a-zA-Z0-9\-_]+\/)?(?:[a-zA-Z0-9\-_]+)?#[0-9]+\b/)) {
+            // User/Project#Num
+            // User#Num
+            // #Num
+            state.combineTokens = true;
+            return "link";
+          }
+        }
+      }
+      if (stream.match(urlRE) &&
+          stream.string.slice(stream.start - 2, stream.start) != "](" &&
+          (stream.start == 0 || /\W/.test(stream.string.charAt(stream.start - 1)))) {
+        // URLs
+        // Taken from http://daringfireball.net/2010/07/improved_regex_for_matching_urls
+        // And then (issue #1160) simplified to make it not crash the Chrome Regexp engine
+        // And then limited url schemes to the CommonMark list, so foo:bar isn't matched as a URL
+        state.combineTokens = true;
+        return "link";
+      }
+      stream.next();
+      return null;
+    },
+    blankLine: blankLine
+  };
+
+  var markdownConfig = {
+    underscoresBreakWords: false,
+    taskLists: true,
+    fencedCodeBlocks: '```',
+    strikethrough: true
+  };
+  for (var attr in modeConfig) {
+    markdownConfig[attr] = modeConfig[attr];
+  }
+  markdownConfig.name = "markdown";
+  return CodeMirror.overlayMode(CodeMirror.getMode(config, markdownConfig), gfmOverlay);
+
+}, "markdown");
+
+  CodeMirror.defineMIME("text/x-gfm", "gfm");
+});
diff --git a/public/codemirror/mode/gfm/index.html b/public/codemirror/mode/gfm/index.html
new file mode 100644
index 000000000..24c90c068
--- /dev/null
+++ b/public/codemirror/mode/gfm/index.html
@@ -0,0 +1,93 @@
+
+
+CodeMirror: GFM mode
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

+
GFM mode

+

+
+    
+
+    
Optionally depends on other modes for properly highlighted code blocks.

+
+    
Parsing/Highlighting Tests: normal,  verbose.

+
+  

diff --git a/public/codemirror/mode/gfm/test.js b/public/codemirror/mode/gfm/test.js
new file mode 100644
index 000000000..7a1a4ccf2
--- /dev/null
+++ b/public/codemirror/mode/gfm/test.js
@@ -0,0 +1,236 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({tabSize: 4}, "gfm");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)); }
+  var modeHighlightFormatting = CodeMirror.getMode({tabSize: 4}, {name: "gfm", highlightFormatting: true});
+  function FT(name) { test.mode(name, modeHighlightFormatting, Array.prototype.slice.call(arguments, 1)); }
+
+  FT("codeBackticks",
+     "[comment&formatting&formatting-code `][comment foo][comment&formatting&formatting-code `]");
+
+  FT("doubleBackticks",
+     "[comment&formatting&formatting-code ``][comment foo ` bar][comment&formatting&formatting-code ``]");
+
+  FT("codeBlock",
+     "[comment&formatting&formatting-code-block ```css]",
+     "[tag foo]",
+     "[comment&formatting&formatting-code-block ```]");
+
+  FT("taskList",
+     "[variable-2&formatting&formatting-list&formatting-list-ul - ][meta&formatting&formatting-task [ ]]][variable-2  foo]",
+     "[variable-2&formatting&formatting-list&formatting-list-ul - ][property&formatting&formatting-task [x]]][variable-2  foo]");
+
+  FT("formatting_strikethrough",
+     "[strikethrough&formatting&formatting-strikethrough ~~][strikethrough foo][strikethrough&formatting&formatting-strikethrough ~~]");
+
+  FT("formatting_strikethrough",
+     "foo [strikethrough&formatting&formatting-strikethrough ~~][strikethrough bar][strikethrough&formatting&formatting-strikethrough ~~]");
+
+  MT("emInWordAsterisk",
+     "foo[em *bar*]hello");
+
+  MT("emInWordUnderscore",
+     "foo_bar_hello");
+
+  MT("emStrongUnderscore",
+     "[strong __][em&strong _foo__][em _] bar");
+
+  MT("fencedCodeBlocks",
+     "[comment ```]",
+     "[comment foo]",
+     "",
+     "[comment ```]",
+     "bar");
+
+  MT("fencedCodeBlockModeSwitching",
+     "[comment ```javascript]",
+     "[variable foo]",
+     "",
+     "[comment ```]",
+     "bar");
+
+  MT("fencedCodeBlockModeSwitchingObjc",
+     "[comment ```objective-c]",
+     "[keyword @property] [variable NSString] [operator *] [variable foo];",
+     "[comment ```]",
+     "bar");
+
+  MT("fencedCodeBlocksNoTildes",
+     "~~~",
+     "foo",
+     "~~~");
+
+  MT("taskListAsterisk",
+     "[variable-2 * []] foo]", // Invalid; must have space or x between []
+     "[variable-2 * [ ]]bar]", // Invalid; must have space after ]
+     "[variable-2 * [x]]hello]", // Invalid; must have space after ]
+     "[variable-2 * ][meta [ ]]][variable-2  [world]]]", // Valid; tests reference style links
+     "    [variable-3 * ][property [x]]][variable-3  foo]"); // Valid; can be nested
+
+  MT("taskListPlus",
+     "[variable-2 + []] foo]", // Invalid; must have space or x between []
+     "[variable-2 + [ ]]bar]", // Invalid; must have space after ]
+     "[variable-2 + [x]]hello]", // Invalid; must have space after ]
+     "[variable-2 + ][meta [ ]]][variable-2  [world]]]", // Valid; tests reference style links
+     "    [variable-3 + ][property [x]]][variable-3  foo]"); // Valid; can be nested
+
+  MT("taskListDash",
+     "[variable-2 - []] foo]", // Invalid; must have space or x between []
+     "[variable-2 - [ ]]bar]", // Invalid; must have space after ]
+     "[variable-2 - [x]]hello]", // Invalid; must have space after ]
+     "[variable-2 - ][meta [ ]]][variable-2  [world]]]", // Valid; tests reference style links
+     "    [variable-3 - ][property [x]]][variable-3  foo]"); // Valid; can be nested
+
+  MT("taskListNumber",
+     "[variable-2 1. []] foo]", // Invalid; must have space or x between []
+     "[variable-2 2. [ ]]bar]", // Invalid; must have space after ]
+     "[variable-2 3. [x]]hello]", // Invalid; must have space after ]
+     "[variable-2 4. ][meta [ ]]][variable-2  [world]]]", // Valid; tests reference style links
+     "    [variable-3 1. ][property [x]]][variable-3  foo]"); // Valid; can be nested
+
+  MT("SHA",
+     "foo [link be6a8cc1c1ecfe9489fb51e4869af15a13fc2cd2] bar");
+
+  MT("SHAEmphasis",
+     "[em *foo ][em&link be6a8cc1c1ecfe9489fb51e4869af15a13fc2cd2][em *]");
+
+  MT("shortSHA",
+     "foo [link be6a8cc] bar");
+
+  MT("tooShortSHA",
+     "foo be6a8c bar");
+
+  MT("longSHA",
+     "foo be6a8cc1c1ecfe9489fb51e4869af15a13fc2cd22 bar");
+
+  MT("badSHA",
+     "foo be6a8cc1c1ecfe9489fb51e4869af15a13fc2cg2 bar");
+
+  MT("userSHA",
+     "foo [link bar@be6a8cc1c1ecfe9489fb51e4869af15a13fc2cd2] hello");
+
+  MT("userSHAEmphasis",
+     "[em *foo ][em&link bar@be6a8cc1c1ecfe9489fb51e4869af15a13fc2cd2][em *]");
+
+  MT("userProjectSHA",
+     "foo [link bar/hello@be6a8cc1c1ecfe9489fb51e4869af15a13fc2cd2] world");
+
+  MT("userProjectSHAEmphasis",
+     "[em *foo ][em&link bar/hello@be6a8cc1c1ecfe9489fb51e4869af15a13fc2cd2][em *]");
+
+  MT("num",
+     "foo [link #1] bar");
+
+  MT("numEmphasis",
+     "[em *foo ][em&link #1][em *]");
+
+  MT("badNum",
+     "foo #1bar hello");
+
+  MT("userNum",
+     "foo [link bar#1] hello");
+
+  MT("userNumEmphasis",
+     "[em *foo ][em&link bar#1][em *]");
+
+  MT("userProjectNum",
+     "foo [link bar/hello#1] world");
+
+  MT("userProjectNumEmphasis",
+     "[em *foo ][em&link bar/hello#1][em *]");
+
+  MT("vanillaLink",
+     "foo [link http://www.example.com/] bar");
+
+  MT("vanillaLinkNoScheme",
+     "foo [link www.example.com] bar");
+
+  MT("vanillaLinkHttps",
+     "foo [link https://www.example.com/] bar");
+
+  MT("vanillaLinkDataSchema",
+     "foo [link data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAFCAYAAACNbyblAAAAHElEQVQI12P4//8/w38GIAXDIBKE0DHxgljNBAAO9TXL0Y4OHwAAAABJRU5ErkJggg==] bar");
+
+  MT("vanillaLinkPunctuation",
+     "foo [link http://www.example.com/]. bar");
+
+  MT("vanillaLinkExtension",
+     "foo [link http://www.example.com/index.html] bar");
+
+  MT("vanillaLinkEmphasis",
+     "foo [em *][em&link http://www.example.com/index.html][em *] bar");
+
+  MT("notALink",
+     "foo asfd:asdf bar");
+
+  MT("notALink",
+     "[comment ```css]",
+     "[tag foo] {[property color]:[keyword black];}",
+     "[comment ```][link http://www.example.com/]");
+
+  MT("notALink",
+     "[comment ``foo `bar` http://www.example.com/``] hello");
+
+  MT("notALink",
+     "[comment `foo]",
+     "[comment&link http://www.example.com/]",
+     "[comment `] foo",
+     "",
+     "[link http://www.example.com/]");
+
+  MT("headerCodeBlockGithub",
+     "[header&header-1 # heading]",
+     "",
+     "[comment ```]",
+     "[comment code]",
+     "[comment ```]",
+     "",
+     "Commit: [link be6a8cc1c1ecfe9489fb51e4869af15a13fc2cd2]",
+     "Issue: [link #1]",
+     "Link: [link http://www.example.com/]");
+
+  MT("strikethrough",
+     "[strikethrough ~~foo~~]");
+
+  MT("strikethroughWithStartingSpace",
+     "~~ foo~~");
+
+  MT("strikethroughUnclosedStrayTildes",
+    "[strikethrough ~~foo~~~]");
+
+  MT("strikethroughUnclosedStrayTildes",
+     "[strikethrough ~~foo ~~]");
+
+  MT("strikethroughUnclosedStrayTildes",
+    "[strikethrough ~~foo ~~ bar]");
+
+  MT("strikethroughUnclosedStrayTildes",
+    "[strikethrough ~~foo ~~ bar~~]hello");
+
+  MT("strikethroughOneLetter",
+     "[strikethrough ~~a~~]");
+
+  MT("strikethroughWrapped",
+     "[strikethrough ~~foo]",
+     "[strikethrough foo~~]");
+
+  MT("strikethroughParagraph",
+     "[strikethrough ~~foo]",
+     "",
+     "foo[strikethrough ~~bar]");
+
+  MT("strikethroughEm",
+     "[strikethrough ~~foo][em&strikethrough *bar*][strikethrough ~~]");
+
+  MT("strikethroughEm",
+     "[em *][em&strikethrough ~~foo~~][em *]");
+
+  MT("strikethroughStrong",
+     "[strikethrough ~~][strong&strikethrough **foo**][strikethrough ~~]");
+
+  MT("strikethroughStrong",
+     "[strong **][strong&strikethrough ~~foo~~][strong **]");
+
+})();
diff --git a/public/codemirror/mode/gherkin/gherkin.js b/public/codemirror/mode/gherkin/gherkin.js
new file mode 100644
index 000000000..fc2ebee16
--- /dev/null
+++ b/public/codemirror/mode/gherkin/gherkin.js
@@ -0,0 +1,178 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+/*
+Gherkin mode - http://www.cukes.info/
+Report bugs/issues here: https://github.com/codemirror/CodeMirror/issues
+*/
+
+// Following Objs from Brackets implementation: https://github.com/tregusti/brackets-gherkin/blob/master/main.js
+//var Quotes = {
+//  SINGLE: 1,
+//  DOUBLE: 2
+//};
+
+//var regex = {
+//  keywords: /(Feature| {2}(Scenario|In order to|As|I)| {4}(Given|When|Then|And))/
+//};
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("gherkin", function () {
+  return {
+    startState: function () {
+      return {
+        lineNumber: 0,
+        tableHeaderLine: false,
+        allowFeature: true,
+        allowBackground: false,
+        allowScenario: false,
+        allowSteps: false,
+        allowPlaceholders: false,
+        allowMultilineArgument: false,
+        inMultilineString: false,
+        inMultilineTable: false,
+        inKeywordLine: false
+      };
+    },
+    token: function (stream, state) {
+      if (stream.sol()) {
+        state.lineNumber++;
+        state.inKeywordLine = false;
+        if (state.inMultilineTable) {
+            state.tableHeaderLine = false;
+            if (!stream.match(/\s*\|/, false)) {
+              state.allowMultilineArgument = false;
+              state.inMultilineTable = false;
+            }
+        }
+      }
+
+      stream.eatSpace();
+
+      if (state.allowMultilineArgument) {
+
+        // STRING
+        if (state.inMultilineString) {
+          if (stream.match('"""')) {
+            state.inMultilineString = false;
+            state.allowMultilineArgument = false;
+          } else {
+            stream.match(/.*/);
+          }
+          return "string";
+        }
+
+        // TABLE
+        if (state.inMultilineTable) {
+          if (stream.match(/\|\s*/)) {
+            return "bracket";
+          } else {
+            stream.match(/[^\|]*/);
+            return state.tableHeaderLine ? "header" : "string";
+          }
+        }
+
+        // DETECT START
+        if (stream.match('"""')) {
+          // String
+          state.inMultilineString = true;
+          return "string";
+        } else if (stream.match("|")) {
+          // Table
+          state.inMultilineTable = true;
+          state.tableHeaderLine = true;
+          return "bracket";
+        }
+
+      }
+
+      // LINE COMMENT
+      if (stream.match(/#.*/)) {
+        return "comment";
+
+      // TAG
+      } else if (!state.inKeywordLine && stream.match(/@\S+/)) {
+        return "tag";
+
+      // FEATURE
+      } else if (!state.inKeywordLine && state.allowFeature && stream.match(/(機能|功能|フィーチャ|기능|โครงหลัก|ความสามารถ|ความต้องการทางธุรกิจ|ಹೆಚ್ಚಳ|గుణము|ਮੁਹਾਂਦਰਾ|ਨਕਸ਼ ਨੁਹਾਰ|ਖਾਸੀਅਤ|रूप लेख|وِیژگی|خاصية|תכונה|Функціонал|Функция|Функционалност|Функционал|Үзенчәлеклелек|Свойство|Особина|Мөмкинлек|Могућност|Λειτουργία|Δυνατότητα|Właściwość|Vlastnosť|Trajto|Tính năng|Savybė|Pretty much|Požiadavka|Požadavek|Potrzeba biznesowa|Özellik|Osobina|Ominaisuus|Omadus|OH HAI|Mogućnost|Mogucnost|Jellemző|Hwæt|Hwaet|Funzionalità|Funktionalitéit|Funktionalität|Funkcja|Funkcionalnost|Funkcionalitāte|Funkcia|Fungsi|Functionaliteit|Funcționalitate|Funcţionalitate|Functionalitate|Funcionalitat|Funcionalidade|Fonctionnalité|Fitur|Fīča|Feature|Eiginleiki|Egenskap|Egenskab|Característica|Caracteristica|Business Need|Aspekt|Arwedd|Ahoy matey!|Ability):/)) {
+        state.allowScenario = true;
+        state.allowBackground = true;
+        state.allowPlaceholders = false;
+        state.allowSteps = false;
+        state.allowMultilineArgument = false;
+        state.inKeywordLine = true;
+        return "keyword";
+
+      // BACKGROUND
+      } else if (!state.inKeywordLine && state.allowBackground && stream.match(/(背景|배경|แนวคิด|ಹಿನ್ನೆಲೆ|నేపథ్యం|ਪਿਛੋਕੜ|पृष्ठभूमि|زمینه|الخلفية|רקע|Тарих|Предыстория|Предистория|Позадина|Передумова|Основа|Контекст|Кереш|Υπόβαθρο|Założenia|Yo\-ho\-ho|Tausta|Taust|Situācija|Rerefons|Pozadina|Pozadie|Pozadí|Osnova|Latar Belakang|Kontext|Konteksts|Kontekstas|Kontekst|Háttér|Hannergrond|Grundlage|Geçmiş|Fundo|Fono|First off|Dis is what went down|Dasar|Contexto|Contexte|Context|Contesto|Cenário de Fundo|Cenario de Fundo|Cefndir|Bối cảnh|Bakgrunnur|Bakgrunn|Bakgrund|Baggrund|Background|B4|Antecedents|Antecedentes|Ær|Aer|Achtergrond):/)) {
+        state.allowPlaceholders = false;
+        state.allowSteps = true;
+        state.allowBackground = false;
+        state.allowMultilineArgument = false;
+        state.inKeywordLine = true;
+        return "keyword";
+
+      // SCENARIO OUTLINE
+      } else if (!state.inKeywordLine && state.allowScenario && stream.match(/(場景大綱|场景大纲|劇本大綱|剧本大纲|テンプレ|シナリオテンプレート|シナリオテンプレ|シナリオアウトライン|시나리오 개요|สรุปเหตุการณ์|โครงสร้างของเหตุการณ์|ವಿವರಣೆ|కథనం|ਪਟਕਥਾ ਰੂਪ ਰੇਖਾ|ਪਟਕਥਾ ਢਾਂਚਾ|परिदृश्य रूपरेखा|سيناريو مخطط|الگوی سناریو|תבנית תרחיש|Сценарийның төзелеше|Сценарий структураси|Структура сценарію|Структура сценария|Структура сценарија|Скица|Рамка на сценарий|Концепт|Περιγραφή Σεναρίου|Wharrimean is|Template Situai|Template Senario|Template Keadaan|Tapausaihio|Szenariogrundriss|Szablon scenariusza|Swa hwær swa|Swa hwaer swa|Struktura scenarija|Structură scenariu|Structura scenariu|Skica|Skenario konsep|Shiver me timbers|Senaryo taslağı|Schema dello scenario|Scenariomall|Scenariomal|Scenario Template|Scenario Outline|Scenario Amlinellol|Scenārijs pēc parauga|Scenarijaus šablonas|Reckon it's like|Raamstsenaarium|Plang vum Szenario|Plan du Scénario|Plan du scénario|Osnova scénáře|Osnova Scenára|Náčrt Scenáru|Náčrt Scénáře|Náčrt Scenára|MISHUN SRSLY|Menggariskan Senario|Lýsing Dæma|Lýsing Atburðarásar|Konturo de la scenaro|Koncept|Khung tình huống|Khung kịch bản|Forgatókönyv vázlat|Esquema do Cenário|Esquema do Cenario|Esquema del escenario|Esquema de l'escenari|Esbozo do escenario|Delineação do Cenário|Delineacao do Cenario|All y'all|Abstrakt Scenario|Abstract Scenario):/)) {
+        state.allowPlaceholders = true;
+        state.allowSteps = true;
+        state.allowMultilineArgument = false;
+        state.inKeywordLine = true;
+        return "keyword";
+
+      // EXAMPLES
+      } else if (state.allowScenario && stream.match(/(例子|例|サンプル|예|ชุดของเหตุการณ์|ชุดของตัวอย่าง|ಉದಾಹರಣೆಗಳು|ఉదాహరణలు|ਉਦਾਹਰਨਾਂ|उदाहरण|نمونه ها|امثلة|דוגמאות|Үрнәкләр|Сценарији|Примеры|Примери|Приклади|Мисоллар|Мисаллар|Σενάρια|Παραδείγματα|You'll wanna|Voorbeelden|Variantai|Tapaukset|Se þe|Se the|Se ðe|Scenarios|Scenariji|Scenarijai|Przykłady|Primjeri|Primeri|Příklady|Príklady|Piemēri|Példák|Pavyzdžiai|Paraugs|Örnekler|Juhtumid|Exemplos|Exemples|Exemple|Exempel|EXAMPLZ|Examples|Esempi|Enghreifftiau|Ekzemploj|Eksempler|Ejemplos|Dữ liệu|Dead men tell no tales|Dæmi|Contoh|Cenários|Cenarios|Beispiller|Beispiele|Atburðarásir):/)) {
+        state.allowPlaceholders = false;
+        state.allowSteps = true;
+        state.allowBackground = false;
+        state.allowMultilineArgument = true;
+        return "keyword";
+
+      // SCENARIO
+      } else if (!state.inKeywordLine && state.allowScenario && stream.match(/(場景|场景|劇本|剧本|シナリオ|시나리오|เหตุการณ์|ಕಥಾಸಾರಾಂಶ|సన్నివేశం|ਪਟਕਥਾ|परिदृश्य|سيناريو|سناریو|תרחיש|Сценарій|Сценарио|Сценарий|Пример|Σενάριο|Tình huống|The thing of it is|Tapaus|Szenario|Swa|Stsenaarium|Skenario|Situai|Senaryo|Senario|Scenaro|Scenariusz|Scenariu|Scénario|Scenario|Scenarijus|Scenārijs|Scenarij|Scenarie|Scénář|Scenár|Primer|MISHUN|Kịch bản|Keadaan|Heave to|Forgatókönyv|Escenario|Escenari|Cenário|Cenario|Awww, look mate|Atburðarás):/)) {
+        state.allowPlaceholders = false;
+        state.allowSteps = true;
+        state.allowBackground = false;
+        state.allowMultilineArgument = false;
+        state.inKeywordLine = true;
+        return "keyword";
+
+      // STEPS
+      } else if (!state.inKeywordLine && state.allowSteps && stream.match(/(那麼|那么|而且|當|当|并且|同時|同时|前提|假设|假設|假定|假如|但是|但し|並且|もし|ならば|ただし|しかし|かつ|하지만|조건|먼저|만일|만약|단|그리고|그러면|และ |เมื่อ |แต่ |ดังนั้น |กำหนดให้ |ಸ್ಥಿತಿಯನ್ನು |ಮತ್ತು |ನೀಡಿದ |ನಂತರ |ಆದರೆ |మరియు |చెప్పబడినది |కాని |ఈ పరిస్థితిలో |అప్పుడు |ਪਰ |ਤਦ |ਜੇਕਰ |ਜਿਵੇਂ ਕਿ |ਜਦੋਂ |ਅਤੇ |यदि |परन्तु |पर |तब |तदा |तथा |जब |चूंकि |किन्तु |कदा |और |अगर |و |هنگامی |متى |لكن |عندما |ثم |بفرض |با فرض |اما |اذاً |آنگاه |כאשר |וגם |בהינתן |אזי |אז |אבל |Якщо |Һәм |Унда |Тоді |Тогда |То |Также |Та |Пусть |Припустимо, що |Припустимо |Онда |Но |Нехай |Нәтиҗәдә |Лекин |Ләкин |Коли |Когда |Когато |Када |Кад |К тому же |І |И |Задато |Задати |Задате |Если |Допустим |Дано |Дадено |Вә |Ва |Бирок |Әмма |Әйтик |Әгәр |Аммо |Али |Але |Агар |А також |А |Τότε |Όταν |Και |Δεδομένου |Αλλά |Þurh |Þegar |Þa þe |Þá |Þa |Zatati |Zakładając |Zadato |Zadate |Zadano |Zadani |Zadan |Za předpokladu |Za predpokladu |Youse know when youse got |Youse know like when |Yna |Yeah nah |Y'know |Y |Wun |Wtedy |When y'all |When |Wenn |WEN |wann |Ve |Và |Und |Un |ugeholl |Too right |Thurh |Thì |Then y'all |Then |Tha the |Tha |Tetapi |Tapi |Tak |Tada |Tad |Stel |Soit |Siis |Și |Şi |Si |Sed |Se |Så |Quando |Quand |Quan |Pryd |Potom |Pokud |Pokiaľ |Però |Pero |Pak |Oraz |Onda |Ond |Oletetaan |Og |Och |O zaman |Niin |Nhưng |När |Når |Mutta |Men |Mas |Maka |Majd |Mając |Mais |Maar |mä |Ma |Lorsque |Lorsqu'|Logo |Let go and haul |Kun |Kuid |Kui |Kiedy |Khi |Ketika |Kemudian |Keď |Když |Kaj |Kai |Kada |Kad |Jeżeli |Jeśli |Ja |It's just unbelievable |Ir |I CAN HAZ |I |Ha |Givun |Givet |Given y'all |Given |Gitt |Gegeven |Gegeben seien |Gegeben sei |Gdy |Gangway! |Fakat |Étant donnés |Etant donnés |Étant données |Etant données |Étant donnée |Etant donnée |Étant donné |Etant donné |Et |És |Entonces |Entón |Então |Entao |En |Eğer ki |Ef |Eeldades |E |Ðurh |Duota |Dun |Donitaĵo |Donat |Donada |Do |Diyelim ki |Diberi |Dengan |Den youse gotta |DEN |De |Dato |Dați fiind |Daţi fiind |Dati fiind |Dati |Date fiind |Date |Data |Dat fiind |Dar |Dann |dann |Dan |Dados |Dado |Dadas |Dada |Ða ðe |Ða |Cuando |Cho |Cando |Când |Cand |Cal |But y'all |But at the end of the day I reckon |BUT |But |Buh |Blimey! |Biết |Bet |Bagi |Aye |awer |Avast! |Atunci |Atesa |Atès |Apabila |Anrhegedig a |Angenommen |And y'all |And |AN |An |an |Amikor |Amennyiben |Ama |Als |Alors |Allora |Ali |Aleshores |Ale |Akkor |Ak |Adott |Ac |Aber |A zároveň |A tiež |A taktiež |A také |A |a |7 |\* )/)) {
+        state.inStep = true;
+        state.allowPlaceholders = true;
+        state.allowMultilineArgument = true;
+        state.inKeywordLine = true;
+        return "keyword";
+
+      // INLINE STRING
+      } else if (stream.match(/"[^"]*"?/)) {
+        return "string";
+
+      // PLACEHOLDER
+      } else if (state.allowPlaceholders && stream.match(/<[^>]*>?/)) {
+        return "variable";
+
+      // Fall through
+      } else {
+        stream.next();
+        stream.eatWhile(/[^@"<#]/);
+        return null;
+      }
+    }
+  };
+});
+
+CodeMirror.defineMIME("text/x-feature", "gherkin");
+
+});
diff --git a/public/codemirror/mode/gherkin/index.html b/public/codemirror/mode/gherkin/index.html
new file mode 100644
index 000000000..af8184c98
--- /dev/null
+++ b/public/codemirror/mode/gherkin/index.html
@@ -0,0 +1,48 @@
+
+
+CodeMirror: Gherkin mode
+
+
+
+
+
+
+
+
+
+

+
Gherkin mode

+

+    
+
+    
MIME types defined: text/x-feature.

+
+  

diff --git a/public/codemirror/mode/go/go.js b/public/codemirror/mode/go/go.js
new file mode 100644
index 000000000..8896b57fb
--- /dev/null
+++ b/public/codemirror/mode/go/go.js
@@ -0,0 +1,187 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("go", function(config) {
+  var indentUnit = config.indentUnit;
+
+  var keywords = {
+    "break":true, "case":true, "chan":true, "const":true, "continue":true,
+    "default":true, "defer":true, "else":true, "fallthrough":true, "for":true,
+    "func":true, "go":true, "goto":true, "if":true, "import":true,
+    "interface":true, "map":true, "package":true, "range":true, "return":true,
+    "select":true, "struct":true, "switch":true, "type":true, "var":true,
+    "bool":true, "byte":true, "complex64":true, "complex128":true,
+    "float32":true, "float64":true, "int8":true, "int16":true, "int32":true,
+    "int64":true, "string":true, "uint8":true, "uint16":true, "uint32":true,
+    "uint64":true, "int":true, "uint":true, "uintptr":true, "error": true,
+    "rune":true
+  };
+
+  var atoms = {
+    "true":true, "false":true, "iota":true, "nil":true, "append":true,
+    "cap":true, "close":true, "complex":true, "copy":true, "delete":true, "imag":true,
+    "len":true, "make":true, "new":true, "panic":true, "print":true,
+    "println":true, "real":true, "recover":true
+  };
+
+  var isOperatorChar = /[+\-*&^%:=<>!|\/]/;
+
+  var curPunc;
+
+  function tokenBase(stream, state) {
+    var ch = stream.next();
+    if (ch == '"' || ch == "'" || ch == "`") {
+      state.tokenize = tokenString(ch);
+      return state.tokenize(stream, state);
+    }
+    if (/[\d\.]/.test(ch)) {
+      if (ch == ".") {
+        stream.match(/^[0-9]+([eE][\-+]?[0-9]+)?/);
+      } else if (ch == "0") {
+        stream.match(/^[xX][0-9a-fA-F]+/) || stream.match(/^0[0-7]+/);
+      } else {
+        stream.match(/^[0-9]*\.?[0-9]*([eE][\-+]?[0-9]+)?/);
+      }
+      return "number";
+    }
+    if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
+      curPunc = ch;
+      return null;
+    }
+    if (ch == "/") {
+      if (stream.eat("*")) {
+        state.tokenize = tokenComment;
+        return tokenComment(stream, state);
+      }
+      if (stream.eat("/")) {
+        stream.skipToEnd();
+        return "comment";
+      }
+    }
+    if (isOperatorChar.test(ch)) {
+      stream.eatWhile(isOperatorChar);
+      return "operator";
+    }
+    stream.eatWhile(/[\w\$_\xa1-\uffff]/);
+    var cur = stream.current();
+    if (keywords.propertyIsEnumerable(cur)) {
+      if (cur == "case" || cur == "default") curPunc = "case";
+      return "keyword";
+    }
+    if (atoms.propertyIsEnumerable(cur)) return "atom";
+    return "variable";
+  }
+
+  function tokenString(quote) {
+    return function(stream, state) {
+      var escaped = false, next, end = false;
+      while ((next = stream.next()) != null) {
+        if (next == quote && !escaped) {end = true; break;}
+        escaped = !escaped && quote != "`" && next == "\\";
+      }
+      if (end || !(escaped || quote == "`"))
+        state.tokenize = tokenBase;
+      return "string";
+    };
+  }
+
+  function tokenComment(stream, state) {
+    var maybeEnd = false, ch;
+    while (ch = stream.next()) {
+      if (ch == "/" && maybeEnd) {
+        state.tokenize = tokenBase;
+        break;
+      }
+      maybeEnd = (ch == "*");
+    }
+    return "comment";
+  }
+
+  function Context(indented, column, type, align, prev) {
+    this.indented = indented;
+    this.column = column;
+    this.type = type;
+    this.align = align;
+    this.prev = prev;
+  }
+  function pushContext(state, col, type) {
+    return state.context = new Context(state.indented, col, type, null, state.context);
+  }
+  function popContext(state) {
+    if (!state.context.prev) return;
+    var t = state.context.type;
+    if (t == ")" || t == "]" || t == "}")
+      state.indented = state.context.indented;
+    return state.context = state.context.prev;
+  }
+
+  // Interface
+
+  return {
+    startState: function(basecolumn) {
+      return {
+        tokenize: null,
+        context: new Context((basecolumn || 0) - indentUnit, 0, "top", false),
+        indented: 0,
+        startOfLine: true
+      };
+    },
+
+    token: function(stream, state) {
+      var ctx = state.context;
+      if (stream.sol()) {
+        if (ctx.align == null) ctx.align = false;
+        state.indented = stream.indentation();
+        state.startOfLine = true;
+        if (ctx.type == "case") ctx.type = "}";
+      }
+      if (stream.eatSpace()) return null;
+      curPunc = null;
+      var style = (state.tokenize || tokenBase)(stream, state);
+      if (style == "comment") return style;
+      if (ctx.align == null) ctx.align = true;
+
+      if (curPunc == "{") pushContext(state, stream.column(), "}");
+      else if (curPunc == "[") pushContext(state, stream.column(), "]");
+      else if (curPunc == "(") pushContext(state, stream.column(), ")");
+      else if (curPunc == "case") ctx.type = "case";
+      else if (curPunc == "}" && ctx.type == "}") ctx = popContext(state);
+      else if (curPunc == ctx.type) popContext(state);
+      state.startOfLine = false;
+      return style;
+    },
+
+    indent: function(state, textAfter) {
+      if (state.tokenize != tokenBase && state.tokenize != null) return 0;
+      var ctx = state.context, firstChar = textAfter && textAfter.charAt(0);
+      if (ctx.type == "case" && /^(?:case|default)\b/.test(textAfter)) {
+        state.context.type = "}";
+        return ctx.indented;
+      }
+      var closing = firstChar == ctx.type;
+      if (ctx.align) return ctx.column + (closing ? 0 : 1);
+      else return ctx.indented + (closing ? 0 : indentUnit);
+    },
+
+    electricChars: "{}):",
+    closeBrackets: "()[]{}''\"\"``",
+    fold: "brace",
+    blockCommentStart: "/*",
+    blockCommentEnd: "*/",
+    lineComment: "//"
+  };
+});
+
+CodeMirror.defineMIME("text/x-go", "go");
+
+});
diff --git a/public/codemirror/mode/go/index.html b/public/codemirror/mode/go/index.html
new file mode 100644
index 000000000..72e3b364c
--- /dev/null
+++ b/public/codemirror/mode/go/index.html
@@ -0,0 +1,85 @@
+
+
+CodeMirror: Go mode
+
+
+
+
+
+
+
+
+
+
+
+

+
Go mode

+

+
+    
+
+    
MIME type: text/x-go

+  

diff --git a/public/codemirror/mode/groovy/groovy.js b/public/codemirror/mode/groovy/groovy.js
new file mode 100644
index 000000000..daa798722
--- /dev/null
+++ b/public/codemirror/mode/groovy/groovy.js
@@ -0,0 +1,230 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("groovy", function(config) {
+  function words(str) {
+    var obj = {}, words = str.split(" ");
+    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+    return obj;
+  }
+  var keywords = words(
+    "abstract as assert boolean break byte case catch char class const continue def default " +
+    "do double else enum extends final finally float for goto if implements import in " +
+    "instanceof int interface long native new package private protected public return " +
+    "short static strictfp super switch synchronized threadsafe throw throws transient " +
+    "try void volatile while");
+  var blockKeywords = words("catch class do else finally for if switch try while enum interface def");
+  var standaloneKeywords = words("return break continue");
+  var atoms = words("null true false this");
+
+  var curPunc;
+  function tokenBase(stream, state) {
+    var ch = stream.next();
+    if (ch == '"' || ch == "'") {
+      return startString(ch, stream, state);
+    }
+    if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
+      curPunc = ch;
+      return null;
+    }
+    if (/\d/.test(ch)) {
+      stream.eatWhile(/[\w\.]/);
+      if (stream.eat(/eE/)) { stream.eat(/\+\-/); stream.eatWhile(/\d/); }
+      return "number";
+    }
+    if (ch == "/") {
+      if (stream.eat("*")) {
+        state.tokenize.push(tokenComment);
+        return tokenComment(stream, state);
+      }
+      if (stream.eat("/")) {
+        stream.skipToEnd();
+        return "comment";
+      }
+      if (expectExpression(state.lastToken, false)) {
+        return startString(ch, stream, state);
+      }
+    }
+    if (ch == "-" && stream.eat(">")) {
+      curPunc = "->";
+      return null;
+    }
+    if (/[+\-*&%=<>!?|\/~]/.test(ch)) {
+      stream.eatWhile(/[+\-*&%=<>|~]/);
+      return "operator";
+    }
+    stream.eatWhile(/[\w\$_]/);
+    if (ch == "@") { stream.eatWhile(/[\w\$_\.]/); return "meta"; }
+    if (state.lastToken == ".") return "property";
+    if (stream.eat(":")) { curPunc = "proplabel"; return "property"; }
+    var cur = stream.current();
+    if (atoms.propertyIsEnumerable(cur)) { return "atom"; }
+    if (keywords.propertyIsEnumerable(cur)) {
+      if (blockKeywords.propertyIsEnumerable(cur)) curPunc = "newstatement";
+      else if (standaloneKeywords.propertyIsEnumerable(cur)) curPunc = "standalone";
+      return "keyword";
+    }
+    return "variable";
+  }
+  tokenBase.isBase = true;
+
+  function startString(quote, stream, state) {
+    var tripleQuoted = false;
+    if (quote != "/" && stream.eat(quote)) {
+      if (stream.eat(quote)) tripleQuoted = true;
+      else return "string";
+    }
+    function t(stream, state) {
+      var escaped = false, next, end = !tripleQuoted;
+      while ((next = stream.next()) != null) {
+        if (next == quote && !escaped) {
+          if (!tripleQuoted) { break; }
+          if (stream.match(quote + quote)) { end = true; break; }
+        }
+        if (quote == '"' && next == "$" && !escaped && stream.eat("{")) {
+          state.tokenize.push(tokenBaseUntilBrace());
+          return "string";
+        }
+        escaped = !escaped && next == "\\";
+      }
+      if (end) state.tokenize.pop();
+      return "string";
+    }
+    state.tokenize.push(t);
+    return t(stream, state);
+  }
+
+  function tokenBaseUntilBrace() {
+    var depth = 1;
+    function t(stream, state) {
+      if (stream.peek() == "}") {
+        depth--;
+        if (depth == 0) {
+          state.tokenize.pop();
+          return state.tokenize[state.tokenize.length-1](stream, state);
+        }
+      } else if (stream.peek() == "{") {
+        depth++;
+      }
+      return tokenBase(stream, state);
+    }
+    t.isBase = true;
+    return t;
+  }
+
+  function tokenComment(stream, state) {
+    var maybeEnd = false, ch;
+    while (ch = stream.next()) {
+      if (ch == "/" && maybeEnd) {
+        state.tokenize.pop();
+        break;
+      }
+      maybeEnd = (ch == "*");
+    }
+    return "comment";
+  }
+
+  function expectExpression(last, newline) {
+    return !last || last == "operator" || last == "->" || /[\.\[\{\(,;:]/.test(last) ||
+      last == "newstatement" || last == "keyword" || last == "proplabel" ||
+      (last == "standalone" && !newline);
+  }
+
+  function Context(indented, column, type, align, prev) {
+    this.indented = indented;
+    this.column = column;
+    this.type = type;
+    this.align = align;
+    this.prev = prev;
+  }
+  function pushContext(state, col, type) {
+    return state.context = new Context(state.indented, col, type, null, state.context);
+  }
+  function popContext(state) {
+    var t = state.context.type;
+    if (t == ")" || t == "]" || t == "}")
+      state.indented = state.context.indented;
+    return state.context = state.context.prev;
+  }
+
+  // Interface
+
+  return {
+    startState: function(basecolumn) {
+      return {
+        tokenize: [tokenBase],
+        context: new Context((basecolumn || 0) - config.indentUnit, 0, "top", false),
+        indented: 0,
+        startOfLine: true,
+        lastToken: null
+      };
+    },
+
+    token: function(stream, state) {
+      var ctx = state.context;
+      if (stream.sol()) {
+        if (ctx.align == null) ctx.align = false;
+        state.indented = stream.indentation();
+        state.startOfLine = true;
+        // Automatic semicolon insertion
+        if (ctx.type == "statement" && !expectExpression(state.lastToken, true)) {
+          popContext(state); ctx = state.context;
+        }
+      }
+      if (stream.eatSpace()) return null;
+      curPunc = null;
+      var style = state.tokenize[state.tokenize.length-1](stream, state);
+      if (style == "comment") return style;
+      if (ctx.align == null) ctx.align = true;
+
+      if ((curPunc == ";" || curPunc == ":") && ctx.type == "statement") popContext(state);
+      // Handle indentation for {x -> \n ... }
+      else if (curPunc == "->" && ctx.type == "statement" && ctx.prev.type == "}") {
+        popContext(state);
+        state.context.align = false;
+      }
+      else if (curPunc == "{") pushContext(state, stream.column(), "}");
+      else if (curPunc == "[") pushContext(state, stream.column(), "]");
+      else if (curPunc == "(") pushContext(state, stream.column(), ")");
+      else if (curPunc == "}") {
+        while (ctx.type == "statement") ctx = popContext(state);
+        if (ctx.type == "}") ctx = popContext(state);
+        while (ctx.type == "statement") ctx = popContext(state);
+      }
+      else if (curPunc == ctx.type) popContext(state);
+      else if (ctx.type == "}" || ctx.type == "top" || (ctx.type == "statement" && curPunc == "newstatement"))
+        pushContext(state, stream.column(), "statement");
+      state.startOfLine = false;
+      state.lastToken = curPunc || style;
+      return style;
+    },
+
+    indent: function(state, textAfter) {
+      if (!state.tokenize[state.tokenize.length-1].isBase) return CodeMirror.Pass;
+      var firstChar = textAfter && textAfter.charAt(0), ctx = state.context;
+      if (ctx.type == "statement" && !expectExpression(state.lastToken, true)) ctx = ctx.prev;
+      var closing = firstChar == ctx.type;
+      if (ctx.type == "statement") return ctx.indented + (firstChar == "{" ? 0 : config.indentUnit);
+      else if (ctx.align) return ctx.column + (closing ? 0 : 1);
+      else return ctx.indented + (closing ? 0 : config.indentUnit);
+    },
+
+    electricChars: "{}",
+    closeBrackets: {triples: "'\""},
+    fold: "brace"
+  };
+});
+
+CodeMirror.defineMIME("text/x-groovy", "groovy");
+
+});
diff --git a/public/codemirror/mode/groovy/index.html b/public/codemirror/mode/groovy/index.html
new file mode 100644
index 000000000..bb0df078c
--- /dev/null
+++ b/public/codemirror/mode/groovy/index.html
@@ -0,0 +1,84 @@
+
+
+CodeMirror: Groovy mode
+
+
+
+
+
+
+
+
+
+
+

+
Groovy mode

+

+
+    
+
+    
MIME types defined: text/x-groovy

+  

diff --git a/public/codemirror/mode/haml/haml.js b/public/codemirror/mode/haml/haml.js
new file mode 100644
index 000000000..20ae1e19c
--- /dev/null
+++ b/public/codemirror/mode/haml/haml.js
@@ -0,0 +1,161 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../htmlmixed/htmlmixed"), require("../ruby/ruby"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../htmlmixed/htmlmixed", "../ruby/ruby"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+  // full haml mode. This handled embedded ruby and html fragments too
+  CodeMirror.defineMode("haml", function(config) {
+    var htmlMode = CodeMirror.getMode(config, {name: "htmlmixed"});
+    var rubyMode = CodeMirror.getMode(config, "ruby");
+
+    function rubyInQuote(endQuote) {
+      return function(stream, state) {
+        var ch = stream.peek();
+        if (ch == endQuote && state.rubyState.tokenize.length == 1) {
+          // step out of ruby context as it seems to complete processing all the braces
+          stream.next();
+          state.tokenize = html;
+          return "closeAttributeTag";
+        } else {
+          return ruby(stream, state);
+        }
+      };
+    }
+
+    function ruby(stream, state) {
+      if (stream.match("-#")) {
+        stream.skipToEnd();
+        return "comment";
+      }
+      return rubyMode.token(stream, state.rubyState);
+    }
+
+    function html(stream, state) {
+      var ch = stream.peek();
+
+      // handle haml declarations. All declarations that cant be handled here
+      // will be passed to html mode
+      if (state.previousToken.style == "comment" ) {
+        if (state.indented > state.previousToken.indented) {
+          stream.skipToEnd();
+          return "commentLine";
+        }
+      }
+
+      if (state.startOfLine) {
+        if (ch == "!" && stream.match("!!")) {
+          stream.skipToEnd();
+          return "tag";
+        } else if (stream.match(/^%[\w:#\.]+=/)) {
+          state.tokenize = ruby;
+          return "hamlTag";
+        } else if (stream.match(/^%[\w:]+/)) {
+          return "hamlTag";
+        } else if (ch == "/" ) {
+          stream.skipToEnd();
+          return "comment";
+        }
+      }
+
+      if (state.startOfLine || state.previousToken.style == "hamlTag") {
+        if ( ch == "#" || ch == ".") {
+          stream.match(/[\w-#\.]*/);
+          return "hamlAttribute";
+        }
+      }
+
+      // donot handle --> as valid ruby, make it HTML close comment instead
+      if (state.startOfLine && !stream.match("-->", false) && (ch == "=" || ch == "-" )) {
+        state.tokenize = ruby;
+        return state.tokenize(stream, state);
+      }
+
+      if (state.previousToken.style == "hamlTag" ||
+          state.previousToken.style == "closeAttributeTag" ||
+          state.previousToken.style == "hamlAttribute") {
+        if (ch == "(") {
+          state.tokenize = rubyInQuote(")");
+          return state.tokenize(stream, state);
+        } else if (ch == "{") {
+          if (!stream.match(/^\{%.*/)) {
+            state.tokenize = rubyInQuote("}");
+            return state.tokenize(stream, state);
+          }
+        }
+      }
+
+      return htmlMode.token(stream, state.htmlState);
+    }
+
+    return {
+      // default to html mode
+      startState: function() {
+        var htmlState = CodeMirror.startState(htmlMode);
+        var rubyState = CodeMirror.startState(rubyMode);
+        return {
+          htmlState: htmlState,
+          rubyState: rubyState,
+          indented: 0,
+          previousToken: { style: null, indented: 0},
+          tokenize: html
+        };
+      },
+
+      copyState: function(state) {
+        return {
+          htmlState : CodeMirror.copyState(htmlMode, state.htmlState),
+          rubyState: CodeMirror.copyState(rubyMode, state.rubyState),
+          indented: state.indented,
+          previousToken: state.previousToken,
+          tokenize: state.tokenize
+        };
+      },
+
+      token: function(stream, state) {
+        if (stream.sol()) {
+          state.indented = stream.indentation();
+          state.startOfLine = true;
+        }
+        if (stream.eatSpace()) return null;
+        var style = state.tokenize(stream, state);
+        state.startOfLine = false;
+        // dont record comment line as we only want to measure comment line with
+        // the opening comment block
+        if (style && style != "commentLine") {
+          state.previousToken = { style: style, indented: state.indented };
+        }
+        // if current state is ruby and the previous token is not `,` reset the
+        // tokenize to html
+        if (stream.eol() && state.tokenize == ruby) {
+          stream.backUp(1);
+          var ch = stream.peek();
+          stream.next();
+          if (ch && ch != ",") {
+            state.tokenize = html;
+          }
+        }
+        // reprocess some of the specific style tag when finish setting previousToken
+        if (style == "hamlTag") {
+          style = "tag";
+        } else if (style == "commentLine") {
+          style = "comment";
+        } else if (style == "hamlAttribute") {
+          style = "attribute";
+        } else if (style == "closeAttributeTag") {
+          style = null;
+        }
+        return style;
+      }
+    };
+  }, "htmlmixed", "ruby");
+
+  CodeMirror.defineMIME("text/x-haml", "haml");
+});
diff --git a/public/codemirror/mode/haml/index.html b/public/codemirror/mode/haml/index.html
new file mode 100644
index 000000000..2894a938e
--- /dev/null
+++ b/public/codemirror/mode/haml/index.html
@@ -0,0 +1,79 @@
+
+
+CodeMirror: HAML mode
+
+
+
+
+
+
+
+
+
+
+
+
+
+

+
HAML mode

+

+    
+
+    
MIME types defined: text/x-haml.

+
+    
Parsing/Highlighting Tests: normal,  verbose.

+
+  

diff --git a/public/codemirror/mode/haml/test.js b/public/codemirror/mode/haml/test.js
new file mode 100644
index 000000000..508458a43
--- /dev/null
+++ b/public/codemirror/mode/haml/test.js
@@ -0,0 +1,97 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({tabSize: 4, indentUnit: 2}, "haml");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)); }
+
+  // Requires at least one media query
+  MT("elementName",
+     "[tag %h1] Hey There");
+
+  MT("oneElementPerLine",
+     "[tag %h1] Hey There %h2");
+
+  MT("idSelector",
+     "[tag %h1][attribute #test] Hey There");
+
+  MT("classSelector",
+     "[tag %h1][attribute .hello] Hey There");
+
+  MT("docType",
+     "[tag !!! XML]");
+
+  MT("comment",
+     "[comment / Hello WORLD]");
+
+  MT("notComment",
+     "[tag %h1] This is not a / comment ");
+
+  MT("attributes",
+     "[tag %a]([variable title][operator =][string \"test\"]){[atom :title] [operator =>] [string \"test\"]}");
+
+  MT("htmlCode",
+     "[tag&bracket <][tag h1][tag&bracket >]Title[tag&bracket ]");
+
+  MT("rubyBlock",
+     "[operator =][variable-2 @item]");
+
+  MT("selectorRubyBlock",
+     "[tag %a.selector=] [variable-2 @item]");
+
+  MT("nestedRubyBlock",
+      "[tag %a]",
+      "   [operator =][variable puts] [string \"test\"]");
+
+  MT("multilinePlaintext",
+      "[tag %p]",
+      "  Hello,",
+      "  World");
+
+  MT("multilineRuby",
+      "[tag %p]",
+      "  [comment -# this is a comment]",
+      "     [comment and this is a comment too]",
+      "  Date/Time",
+      "  [operator -] [variable now] [operator =] [tag DateTime][operator .][property now]",
+      "  [tag %strong=] [variable now]",
+      "  [operator -] [keyword if] [variable now] [operator >] [tag DateTime][operator .][property parse]([string \"December 31, 2006\"])",
+      "     [operator =][string \"Happy\"]",
+      "     [operator =][string \"Belated\"]",
+      "     [operator =][string \"Birthday\"]");
+
+  MT("multilineComment",
+      "[comment /]",
+      "  [comment Multiline]",
+      "  [comment Comment]");
+
+  MT("hamlComment",
+     "[comment -# this is a comment]");
+
+  MT("multilineHamlComment",
+     "[comment -# this is a comment]",
+     "   [comment and this is a comment too]");
+
+  MT("multilineHTMLComment",
+    "[comment ]");
+
+  MT("hamlAfterRubyTag",
+    "[attribute .block]",
+    "  [tag %strong=] [variable now]",
+    "  [attribute .test]",
+    "     [operator =][variable now]",
+    "  [attribute .right]");
+
+  MT("stretchedRuby",
+     "[operator =] [variable puts] [string \"Hello\"],",
+     "   [string \"World\"]");
+
+  MT("interpolationInHashAttribute",
+     //"[tag %div]{[atom :id] [operator =>] [string \"#{][variable test][string }_#{][variable ting][string }\"]} test");
+     "[tag %div]{[atom :id] [operator =>] [string \"#{][variable test][string }_#{][variable ting][string }\"]} test");
+
+  MT("interpolationInHTMLAttribute",
+     "[tag %div]([variable title][operator =][string \"#{][variable test][string }_#{][variable ting]()[string }\"]) Test");
+})();
diff --git a/public/codemirror/mode/handlebars/handlebars.js b/public/codemirror/mode/handlebars/handlebars.js
new file mode 100644
index 000000000..2174e5384
--- /dev/null
+++ b/public/codemirror/mode/handlebars/handlebars.js
@@ -0,0 +1,62 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../../addon/mode/simple"), require("../../addon/mode/multiplex"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../../addon/mode/simple", "../../addon/mode/multiplex"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineSimpleMode("handlebars-tags", {
+    start: [
+      { regex: /\{\{!--/, push: "dash_comment", token: "comment" },
+      { regex: /\{\{!/,   push: "comment", token: "comment" },
+      { regex: /\{\{/,    push: "handlebars", token: "tag" }
+    ],
+    handlebars: [
+      { regex: /\}\}/, pop: true, token: "tag" },
+
+      // Double and single quotes
+      { regex: /"(?:[^\\"]|\\.)*"?/, token: "string" },
+      { regex: /'(?:[^\\']|\\.)*'?/, token: "string" },
+
+      // Handlebars keywords
+      { regex: />|[#\/]([A-Za-z_]\w*)/, token: "keyword" },
+      { regex: /(?:else|this)\b/, token: "keyword" },
+
+      // Numeral
+      { regex: /\d+/i, token: "number" },
+
+      // Atoms like = and .
+      { regex: /=|~|@|true|false/, token: "atom" },
+
+      // Paths
+      { regex: /(?:\.\.\/)*(?:[A-Za-z_][\w\.]*)+/, token: "variable-2" }
+    ],
+    dash_comment: [
+      { regex: /--\}\}/, pop: true, token: "comment" },
+
+      // Commented code
+      { regex: /./, token: "comment"}
+    ],
+    comment: [
+      { regex: /\}\}/, pop: true, token: "comment" },
+      { regex: /./, token: "comment" }
+    ]
+  });
+
+  CodeMirror.defineMode("handlebars", function(config, parserConfig) {
+    var handlebars = CodeMirror.getMode(config, "handlebars-tags");
+    if (!parserConfig || !parserConfig.base) return handlebars;
+    return CodeMirror.multiplexingMode(
+      CodeMirror.getMode(config, parserConfig.base),
+      {open: "{{", close: "}}", mode: handlebars, parseDelimiters: true}
+    );
+  });
+
+  CodeMirror.defineMIME("text/x-handlebars-template", "handlebars");
+});
diff --git a/public/codemirror/mode/handlebars/index.html b/public/codemirror/mode/handlebars/index.html
new file mode 100644
index 000000000..b1bfad1ca
--- /dev/null
+++ b/public/codemirror/mode/handlebars/index.html
@@ -0,0 +1,79 @@
+
+
+CodeMirror: Handlebars mode
+
+
+
+
+
+
+
+
+
+
+
+
+

+
Handlebars

+

+    
+    
+    
Handlebars syntax highlighting for CodeMirror.

+
+    
MIME types defined: text/x-handlebars-template

+
+    
Supported options: base to set the mode to
+    wrap. For example, use

+    
mode: {name: "handlebars", base: "text/html"}

+    
to highlight an HTML template.

+

diff --git a/public/codemirror/mode/haskell-literate/haskell-literate.js b/public/codemirror/mode/haskell-literate/haskell-literate.js
new file mode 100644
index 000000000..906415b4c
--- /dev/null
+++ b/public/codemirror/mode/haskell-literate/haskell-literate.js
@@ -0,0 +1,43 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function (mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../haskell/haskell"))
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../haskell/haskell"], mod)
+  else // Plain browser env
+    mod(CodeMirror)
+})(function (CodeMirror) {
+  "use strict"
+
+  CodeMirror.defineMode("haskell-literate", function (config, parserConfig) {
+    var baseMode = CodeMirror.getMode(config, (parserConfig && parserConfig.base) || "haskell")
+
+    return {
+      startState: function () {
+        return {
+          inCode: false,
+          baseState: CodeMirror.startState(baseMode)
+        }
+      },
+      token: function (stream, state) {
+        if (stream.sol()) {
+          if (state.inCode = stream.eat(">"))
+            return "meta"
+        }
+        if (state.inCode) {
+          return baseMode.token(stream, state.baseState)
+        } else {
+          stream.skipToEnd()
+          return "comment"
+        }
+      },
+      innerMode: function (state) {
+        return state.inCode ? {state: state.baseState, mode: baseMode} : null
+      }
+    }
+  }, "haskell")
+
+  CodeMirror.defineMIME("text/x-literate-haskell", "haskell-literate")
+});
diff --git a/public/codemirror/mode/haskell-literate/index.html b/public/codemirror/mode/haskell-literate/index.html
new file mode 100644
index 000000000..8c9bc60d1
--- /dev/null
+++ b/public/codemirror/mode/haskell-literate/index.html
@@ -0,0 +1,282 @@
+
+
+CodeMirror: Haskell-literate mode
+
+
+
+
+
+
+
+
+
+
+

+  
Haskell literate mode

+  

+    
+  

+
+  
MIME types
+  defined: text/x-literate-haskell.

+
+  
Parser configuration parameters recognized: base to
+  set the base mode (defaults to "haskell").

+
+  
+
+

diff --git a/public/codemirror/mode/haskell/haskell.js b/public/codemirror/mode/haskell/haskell.js
new file mode 100644
index 000000000..4197666a4
--- /dev/null
+++ b/public/codemirror/mode/haskell/haskell.js
@@ -0,0 +1,267 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("haskell", function(_config, modeConfig) {
+
+  function switchState(source, setState, f) {
+    setState(f);
+    return f(source, setState);
+  }
+
+  // These should all be Unicode extended, as per the Haskell 2010 report
+  var smallRE = /[a-z_]/;
+  var largeRE = /[A-Z]/;
+  var digitRE = /\d/;
+  var hexitRE = /[0-9A-Fa-f]/;
+  var octitRE = /[0-7]/;
+  var idRE = /[a-z_A-Z0-9'\xa1-\uffff]/;
+  var symbolRE = /[-!#$%&*+.\/<=>?@\\^|~:]/;
+  var specialRE = /[(),;[\]`{}]/;
+  var whiteCharRE = /[ \t\v\f]/; // newlines are handled in tokenizer
+
+  function normal(source, setState) {
+    if (source.eatWhile(whiteCharRE)) {
+      return null;
+    }
+
+    var ch = source.next();
+    if (specialRE.test(ch)) {
+      if (ch == '{' && source.eat('-')) {
+        var t = "comment";
+        if (source.eat('#')) {
+          t = "meta";
+        }
+        return switchState(source, setState, ncomment(t, 1));
+      }
+      return null;
+    }
+
+    if (ch == '\'') {
+      if (source.eat('\\')) {
+        source.next();  // should handle other escapes here
+      }
+      else {
+        source.next();
+      }
+      if (source.eat('\'')) {
+        return "string";
+      }
+      return "string error";
+    }
+
+    if (ch == '"') {
+      return switchState(source, setState, stringLiteral);
+    }
+
+    if (largeRE.test(ch)) {
+      source.eatWhile(idRE);
+      if (source.eat('.')) {
+        return "qualifier";
+      }
+      return "variable-2";
+    }
+
+    if (smallRE.test(ch)) {
+      source.eatWhile(idRE);
+      return "variable";
+    }
+
+    if (digitRE.test(ch)) {
+      if (ch == '0') {
+        if (source.eat(/[xX]/)) {
+          source.eatWhile(hexitRE); // should require at least 1
+          return "integer";
+        }
+        if (source.eat(/[oO]/)) {
+          source.eatWhile(octitRE); // should require at least 1
+          return "number";
+        }
+      }
+      source.eatWhile(digitRE);
+      var t = "number";
+      if (source.match(/^\.\d+/)) {
+        t = "number";
+      }
+      if (source.eat(/[eE]/)) {
+        t = "number";
+        source.eat(/[-+]/);
+        source.eatWhile(digitRE); // should require at least 1
+      }
+      return t;
+    }
+
+    if (ch == "." && source.eat("."))
+      return "keyword";
+
+    if (symbolRE.test(ch)) {
+      if (ch == '-' && source.eat(/-/)) {
+        source.eatWhile(/-/);
+        if (!source.eat(symbolRE)) {
+          source.skipToEnd();
+          return "comment";
+        }
+      }
+      var t = "variable";
+      if (ch == ':') {
+        t = "variable-2";
+      }
+      source.eatWhile(symbolRE);
+      return t;
+    }
+
+    return "error";
+  }
+
+  function ncomment(type, nest) {
+    if (nest == 0) {
+      return normal;
+    }
+    return function(source, setState) {
+      var currNest = nest;
+      while (!source.eol()) {
+        var ch = source.next();
+        if (ch == '{' && source.eat('-')) {
+          ++currNest;
+        }
+        else if (ch == '-' && source.eat('}')) {
+          --currNest;
+          if (currNest == 0) {
+            setState(normal);
+            return type;
+          }
+        }
+      }
+      setState(ncomment(type, currNest));
+      return type;
+    };
+  }
+
+  function stringLiteral(source, setState) {
+    while (!source.eol()) {
+      var ch = source.next();
+      if (ch == '"') {
+        setState(normal);
+        return "string";
+      }
+      if (ch == '\\') {
+        if (source.eol() || source.eat(whiteCharRE)) {
+          setState(stringGap);
+          return "string";
+        }
+        if (source.eat('&')) {
+        }
+        else {
+          source.next(); // should handle other escapes here
+        }
+      }
+    }
+    setState(normal);
+    return "string error";
+  }
+
+  function stringGap(source, setState) {
+    if (source.eat('\\')) {
+      return switchState(source, setState, stringLiteral);
+    }
+    source.next();
+    setState(normal);
+    return "error";
+  }
+
+
+  var wellKnownWords = (function() {
+    var wkw = {};
+    function setType(t) {
+      return function () {
+        for (var i = 0; i < arguments.length; i++)
+          wkw[arguments[i]] = t;
+      };
+    }
+
+    setType("keyword")(
+      "case", "class", "data", "default", "deriving", "do", "else", "foreign",
+      "if", "import", "in", "infix", "infixl", "infixr", "instance", "let",
+      "module", "newtype", "of", "then", "type", "where", "_");
+
+    setType("keyword")(
+      "\.\.", ":", "::", "=", "\\", "<-", "->", "@", "~", "=>");
+
+    setType("builtin")(
+      "!!", "$!", "$", "&&", "+", "++", "-", ".", "/", "/=", "<", "<=", "=<<",
+      "==", ">", ">=", ">>", ">>=", "^", "^^", "||", "*", "**");
+
+    setType("builtin")(
+      "Bool", "Bounded", "Char", "Double", "EQ", "Either", "Enum", "Eq",
+      "False", "FilePath", "Float", "Floating", "Fractional", "Functor", "GT",
+      "IO", "IOError", "Int", "Integer", "Integral", "Just", "LT", "Left",
+      "Maybe", "Monad", "Nothing", "Num", "Ord", "Ordering", "Rational", "Read",
+      "ReadS", "Real", "RealFloat", "RealFrac", "Right", "Show", "ShowS",
+      "String", "True");
+
+    setType("builtin")(
+      "abs", "acos", "acosh", "all", "and", "any", "appendFile", "asTypeOf",
+      "asin", "asinh", "atan", "atan2", "atanh", "break", "catch", "ceiling",
+      "compare", "concat", "concatMap", "const", "cos", "cosh", "curry",
+      "cycle", "decodeFloat", "div", "divMod", "drop", "dropWhile", "either",
+      "elem", "encodeFloat", "enumFrom", "enumFromThen", "enumFromThenTo",
+      "enumFromTo", "error", "even", "exp", "exponent", "fail", "filter",
+      "flip", "floatDigits", "floatRadix", "floatRange", "floor", "fmap",
+      "foldl", "foldl1", "foldr", "foldr1", "fromEnum", "fromInteger",
+      "fromIntegral", "fromRational", "fst", "gcd", "getChar", "getContents",
+      "getLine", "head", "id", "init", "interact", "ioError", "isDenormalized",
+      "isIEEE", "isInfinite", "isNaN", "isNegativeZero", "iterate", "last",
+      "lcm", "length", "lex", "lines", "log", "logBase", "lookup", "map",
+      "mapM", "mapM_", "max", "maxBound", "maximum", "maybe", "min", "minBound",
+      "minimum", "mod", "negate", "not", "notElem", "null", "odd", "or",
+      "otherwise", "pi", "pred", "print", "product", "properFraction",
+      "putChar", "putStr", "putStrLn", "quot", "quotRem", "read", "readFile",
+      "readIO", "readList", "readLn", "readParen", "reads", "readsPrec",
+      "realToFrac", "recip", "rem", "repeat", "replicate", "return", "reverse",
+      "round", "scaleFloat", "scanl", "scanl1", "scanr", "scanr1", "seq",
+      "sequence", "sequence_", "show", "showChar", "showList", "showParen",
+      "showString", "shows", "showsPrec", "significand", "signum", "sin",
+      "sinh", "snd", "span", "splitAt", "sqrt", "subtract", "succ", "sum",
+      "tail", "take", "takeWhile", "tan", "tanh", "toEnum", "toInteger",
+      "toRational", "truncate", "uncurry", "undefined", "unlines", "until",
+      "unwords", "unzip", "unzip3", "userError", "words", "writeFile", "zip",
+      "zip3", "zipWith", "zipWith3");
+
+    var override = modeConfig.overrideKeywords;
+    if (override) for (var word in override) if (override.hasOwnProperty(word))
+      wkw[word] = override[word];
+
+    return wkw;
+  })();
+
+
+
+  return {
+    startState: function ()  { return { f: normal }; },
+    copyState:  function (s) { return { f: s.f }; },
+
+    token: function(stream, state) {
+      var t = state.f(stream, function(s) { state.f = s; });
+      var w = stream.current();
+      return wellKnownWords.hasOwnProperty(w) ? wellKnownWords[w] : t;
+    },
+
+    blockCommentStart: "{-",
+    blockCommentEnd: "-}",
+    lineComment: "--"
+  };
+
+});
+
+CodeMirror.defineMIME("text/x-haskell", "haskell");
+
+});
diff --git a/public/codemirror/mode/haskell/index.html b/public/codemirror/mode/haskell/index.html
new file mode 100644
index 000000000..42240b0f2
--- /dev/null
+++ b/public/codemirror/mode/haskell/index.html
@@ -0,0 +1,73 @@
+
+
+CodeMirror: Haskell mode
+
+
+
+
+
+
+
+
+
+
+
+

+
Haskell mode

+

+
+    
+
+    
MIME types defined: text/x-haskell.

+  

diff --git a/public/codemirror/mode/haxe/haxe.js b/public/codemirror/mode/haxe/haxe.js
new file mode 100644
index 000000000..a9573dd71
--- /dev/null
+++ b/public/codemirror/mode/haxe/haxe.js
@@ -0,0 +1,515 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("haxe", function(config, parserConfig) {
+  var indentUnit = config.indentUnit;
+
+  // Tokenizer
+
+  function kw(type) {return {type: type, style: "keyword"};}
+  var A = kw("keyword a"), B = kw("keyword b"), C = kw("keyword c");
+  var operator = kw("operator"), atom = {type: "atom", style: "atom"}, attribute = {type:"attribute", style: "attribute"};
+  var type = kw("typedef");
+  var keywords = {
+    "if": A, "while": A, "else": B, "do": B, "try": B,
+    "return": C, "break": C, "continue": C, "new": C, "throw": C,
+    "var": kw("var"), "inline":attribute, "static": attribute, "using":kw("import"),
+    "public": attribute, "private": attribute, "cast": kw("cast"), "import": kw("import"), "macro": kw("macro"),
+    "function": kw("function"), "catch": kw("catch"), "untyped": kw("untyped"), "callback": kw("cb"),
+    "for": kw("for"), "switch": kw("switch"), "case": kw("case"), "default": kw("default"),
+    "in": operator, "never": kw("property_access"), "trace":kw("trace"),
+    "class": type, "abstract":type, "enum":type, "interface":type, "typedef":type, "extends":type, "implements":type, "dynamic":type,
+    "true": atom, "false": atom, "null": atom
+  };
+
+  var isOperatorChar = /[+\-*&%=<>!?|]/;
+
+  function chain(stream, state, f) {
+    state.tokenize = f;
+    return f(stream, state);
+  }
+
+  function toUnescaped(stream, end) {
+    var escaped = false, next;
+    while ((next = stream.next()) != null) {
+      if (next == end && !escaped)
+        return true;
+      escaped = !escaped && next == "\\";
+    }
+  }
+
+  // Used as scratch variables to communicate multiple values without
+  // consing up tons of objects.
+  var type, content;
+  function ret(tp, style, cont) {
+    type = tp; content = cont;
+    return style;
+  }
+
+  function haxeTokenBase(stream, state) {
+    var ch = stream.next();
+    if (ch == '"' || ch == "'") {
+      return chain(stream, state, haxeTokenString(ch));
+    } else if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
+      return ret(ch);
+    } else if (ch == "0" && stream.eat(/x/i)) {
+      stream.eatWhile(/[\da-f]/i);
+      return ret("number", "number");
+    } else if (/\d/.test(ch) || ch == "-" && stream.eat(/\d/)) {
+      stream.match(/^\d*(?:\.\d*(?!\.))?(?:[eE][+\-]?\d+)?/);
+      return ret("number", "number");
+    } else if (state.reAllowed && (ch == "~" && stream.eat(/\//))) {
+      toUnescaped(stream, "/");
+      stream.eatWhile(/[gimsu]/);
+      return ret("regexp", "string-2");
+    } else if (ch == "/") {
+      if (stream.eat("*")) {
+        return chain(stream, state, haxeTokenComment);
+      } else if (stream.eat("/")) {
+        stream.skipToEnd();
+        return ret("comment", "comment");
+      } else {
+        stream.eatWhile(isOperatorChar);
+        return ret("operator", null, stream.current());
+      }
+    } else if (ch == "#") {
+        stream.skipToEnd();
+        return ret("conditional", "meta");
+    } else if (ch == "@") {
+      stream.eat(/:/);
+      stream.eatWhile(/[\w_]/);
+      return ret ("metadata", "meta");
+    } else if (isOperatorChar.test(ch)) {
+      stream.eatWhile(isOperatorChar);
+      return ret("operator", null, stream.current());
+    } else {
+      var word;
+      if(/[A-Z]/.test(ch)) {
+        stream.eatWhile(/[\w_<>]/);
+        word = stream.current();
+        return ret("type", "variable-3", word);
+      } else {
+        stream.eatWhile(/[\w_]/);
+        var word = stream.current(), known = keywords.propertyIsEnumerable(word) && keywords[word];
+        return (known && state.kwAllowed) ? ret(known.type, known.style, word) :
+                       ret("variable", "variable", word);
+      }
+    }
+  }
+
+  function haxeTokenString(quote) {
+    return function(stream, state) {
+      if (toUnescaped(stream, quote))
+        state.tokenize = haxeTokenBase;
+      return ret("string", "string");
+    };
+  }
+
+  function haxeTokenComment(stream, state) {
+    var maybeEnd = false, ch;
+    while (ch = stream.next()) {
+      if (ch == "/" && maybeEnd) {
+        state.tokenize = haxeTokenBase;
+        break;
+      }
+      maybeEnd = (ch == "*");
+    }
+    return ret("comment", "comment");
+  }
+
+  // Parser
+
+  var atomicTypes = {"atom": true, "number": true, "variable": true, "string": true, "regexp": true};
+
+  function HaxeLexical(indented, column, type, align, prev, info) {
+    this.indented = indented;
+    this.column = column;
+    this.type = type;
+    this.prev = prev;
+    this.info = info;
+    if (align != null) this.align = align;
+  }
+
+  function inScope(state, varname) {
+    for (var v = state.localVars; v; v = v.next)
+      if (v.name == varname) return true;
+  }
+
+  function parseHaxe(state, style, type, content, stream) {
+    var cc = state.cc;
+    // Communicate our context to the combinators.
+    // (Less wasteful than consing up a hundred closures on every call.)
+    cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc;
+
+    if (!state.lexical.hasOwnProperty("align"))
+      state.lexical.align = true;
+
+    while(true) {
+      var combinator = cc.length ? cc.pop() : statement;
+      if (combinator(type, content)) {
+        while(cc.length && cc[cc.length - 1].lex)
+          cc.pop()();
+        if (cx.marked) return cx.marked;
+        if (type == "variable" && inScope(state, content)) return "variable-2";
+        if (type == "variable" && imported(state, content)) return "variable-3";
+        return style;
+      }
+    }
+  }
+
+  function imported(state, typename) {
+    if (/[a-z]/.test(typename.charAt(0)))
+      return false;
+    var len = state.importedtypes.length;
+    for (var i = 0; i= 0; i--) cx.cc.push(arguments[i]);
+  }
+  function cont() {
+    pass.apply(null, arguments);
+    return true;
+  }
+  function inList(name, list) {
+    for (var v = list; v; v = v.next)
+      if (v.name == name) return true;
+    return false;
+  }
+  function register(varname) {
+    var state = cx.state;
+    if (state.context) {
+      cx.marked = "def";
+      if (inList(varname, state.localVars)) return;
+      state.localVars = {name: varname, next: state.localVars};
+    } else if (state.globalVars) {
+      if (inList(varname, state.globalVars)) return;
+      state.globalVars = {name: varname, next: state.globalVars};
+    }
+  }
+
+  // Combinators
+
+  var defaultVars = {name: "this", next: null};
+  function pushcontext() {
+    if (!cx.state.context) cx.state.localVars = defaultVars;
+    cx.state.context = {prev: cx.state.context, vars: cx.state.localVars};
+  }
+  function popcontext() {
+    cx.state.localVars = cx.state.context.vars;
+    cx.state.context = cx.state.context.prev;
+  }
+  popcontext.lex = true;
+  function pushlex(type, info) {
+    var result = function() {
+      var state = cx.state;
+      state.lexical = new HaxeLexical(state.indented, cx.stream.column(), type, null, state.lexical, info);
+    };
+    result.lex = true;
+    return result;
+  }
+  function poplex() {
+    var state = cx.state;
+    if (state.lexical.prev) {
+      if (state.lexical.type == ")")
+        state.indented = state.lexical.indented;
+      state.lexical = state.lexical.prev;
+    }
+  }
+  poplex.lex = true;
+
+  function expect(wanted) {
+    function f(type) {
+      if (type == wanted) return cont();
+      else if (wanted == ";") return pass();
+      else return cont(f);
+    }
+    return f;
+  }
+
+  function statement(type) {
+    if (type == "@") return cont(metadef);
+    if (type == "var") return cont(pushlex("vardef"), vardef1, expect(";"), poplex);
+    if (type == "keyword a") return cont(pushlex("form"), expression, statement, poplex);
+    if (type == "keyword b") return cont(pushlex("form"), statement, poplex);
+    if (type == "{") return cont(pushlex("}"), pushcontext, block, poplex, popcontext);
+    if (type == ";") return cont();
+    if (type == "attribute") return cont(maybeattribute);
+    if (type == "function") return cont(functiondef);
+    if (type == "for") return cont(pushlex("form"), expect("("), pushlex(")"), forspec1, expect(")"),
+                                   poplex, statement, poplex);
+    if (type == "variable") return cont(pushlex("stat"), maybelabel);
+    if (type == "switch") return cont(pushlex("form"), expression, pushlex("}", "switch"), expect("{"),
+                                      block, poplex, poplex);
+    if (type == "case") return cont(expression, expect(":"));
+    if (type == "default") return cont(expect(":"));
+    if (type == "catch") return cont(pushlex("form"), pushcontext, expect("("), funarg, expect(")"),
+                                     statement, poplex, popcontext);
+    if (type == "import") return cont(importdef, expect(";"));
+    if (type == "typedef") return cont(typedef);
+    return pass(pushlex("stat"), expression, expect(";"), poplex);
+  }
+  function expression(type) {
+    if (atomicTypes.hasOwnProperty(type)) return cont(maybeoperator);
+    if (type == "type" ) return cont(maybeoperator);
+    if (type == "function") return cont(functiondef);
+    if (type == "keyword c") return cont(maybeexpression);
+    if (type == "(") return cont(pushlex(")"), maybeexpression, expect(")"), poplex, maybeoperator);
+    if (type == "operator") return cont(expression);
+    if (type == "[") return cont(pushlex("]"), commasep(maybeexpression, "]"), poplex, maybeoperator);
+    if (type == "{") return cont(pushlex("}"), commasep(objprop, "}"), poplex, maybeoperator);
+    return cont();
+  }
+  function maybeexpression(type) {
+    if (type.match(/[;\}\)\],]/)) return pass();
+    return pass(expression);
+  }
+
+  function maybeoperator(type, value) {
+    if (type == "operator" && /\+\+|--/.test(value)) return cont(maybeoperator);
+    if (type == "operator" || type == ":") return cont(expression);
+    if (type == ";") return;
+    if (type == "(") return cont(pushlex(")"), commasep(expression, ")"), poplex, maybeoperator);
+    if (type == ".") return cont(property, maybeoperator);
+    if (type == "[") return cont(pushlex("]"), expression, expect("]"), poplex, maybeoperator);
+  }
+
+  function maybeattribute(type) {
+    if (type == "attribute") return cont(maybeattribute);
+    if (type == "function") return cont(functiondef);
+    if (type == "var") return cont(vardef1);
+  }
+
+  function metadef(type) {
+    if(type == ":") return cont(metadef);
+    if(type == "variable") return cont(metadef);
+    if(type == "(") return cont(pushlex(")"), commasep(metaargs, ")"), poplex, statement);
+  }
+  function metaargs(type) {
+    if(type == "variable") return cont();
+  }
+
+  function importdef (type, value) {
+    if(type == "variable" && /[A-Z]/.test(value.charAt(0))) { registerimport(value); return cont(); }
+    else if(type == "variable" || type == "property" || type == "." || value == "*") return cont(importdef);
+  }
+
+  function typedef (type, value)
+  {
+    if(type == "variable" && /[A-Z]/.test(value.charAt(0))) { registerimport(value); return cont(); }
+    else if (type == "type" && /[A-Z]/.test(value.charAt(0))) { return cont(); }
+  }
+
+  function maybelabel(type) {
+    if (type == ":") return cont(poplex, statement);
+    return pass(maybeoperator, expect(";"), poplex);
+  }
+  function property(type) {
+    if (type == "variable") {cx.marked = "property"; return cont();}
+  }
+  function objprop(type) {
+    if (type == "variable") cx.marked = "property";
+    if (atomicTypes.hasOwnProperty(type)) return cont(expect(":"), expression);
+  }
+  function commasep(what, end) {
+    function proceed(type) {
+      if (type == ",") return cont(what, proceed);
+      if (type == end) return cont();
+      return cont(expect(end));
+    }
+    return function(type) {
+      if (type == end) return cont();
+      else return pass(what, proceed);
+    };
+  }
+  function block(type) {
+    if (type == "}") return cont();
+    return pass(statement, block);
+  }
+  function vardef1(type, value) {
+    if (type == "variable"){register(value); return cont(typeuse, vardef2);}
+    return cont();
+  }
+  function vardef2(type, value) {
+    if (value == "=") return cont(expression, vardef2);
+    if (type == ",") return cont(vardef1);
+  }
+  function forspec1(type, value) {
+    if (type == "variable") {
+      register(value);
+      return cont(forin, expression)
+    } else {
+      return pass()
+    }
+  }
+  function forin(_type, value) {
+    if (value == "in") return cont();
+  }
+  function functiondef(type, value) {
+    //function names starting with upper-case letters are recognised as types, so cludging them together here.
+    if (type == "variable" || type == "type") {register(value); return cont(functiondef);}
+    if (value == "new") return cont(functiondef);
+    if (type == "(") return cont(pushlex(")"), pushcontext, commasep(funarg, ")"), poplex, typeuse, statement, popcontext);
+  }
+  function typeuse(type) {
+    if(type == ":") return cont(typestring);
+  }
+  function typestring(type) {
+    if(type == "type") return cont();
+    if(type == "variable") return cont();
+    if(type == "{") return cont(pushlex("}"), commasep(typeprop, "}"), poplex);
+  }
+  function typeprop(type) {
+    if(type == "variable") return cont(typeuse);
+  }
+  function funarg(type, value) {
+    if (type == "variable") {register(value); return cont(typeuse);}
+  }
+
+  // Interface
+  return {
+    startState: function(basecolumn) {
+      var defaulttypes = ["Int", "Float", "String", "Void", "Std", "Bool", "Dynamic", "Array"];
+      var state = {
+        tokenize: haxeTokenBase,
+        reAllowed: true,
+        kwAllowed: true,
+        cc: [],
+        lexical: new HaxeLexical((basecolumn || 0) - indentUnit, 0, "block", false),
+        localVars: parserConfig.localVars,
+        importedtypes: defaulttypes,
+        context: parserConfig.localVars && {vars: parserConfig.localVars},
+        indented: 0
+      };
+      if (parserConfig.globalVars && typeof parserConfig.globalVars == "object")
+        state.globalVars = parserConfig.globalVars;
+      return state;
+    },
+
+    token: function(stream, state) {
+      if (stream.sol()) {
+        if (!state.lexical.hasOwnProperty("align"))
+          state.lexical.align = false;
+        state.indented = stream.indentation();
+      }
+      if (stream.eatSpace()) return null;
+      var style = state.tokenize(stream, state);
+      if (type == "comment") return style;
+      state.reAllowed = !!(type == "operator" || type == "keyword c" || type.match(/^[\[{}\(,;:]$/));
+      state.kwAllowed = type != '.';
+      return parseHaxe(state, style, type, content, stream);
+    },
+
+    indent: function(state, textAfter) {
+      if (state.tokenize != haxeTokenBase) return 0;
+      var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical;
+      if (lexical.type == "stat" && firstChar == "}") lexical = lexical.prev;
+      var type = lexical.type, closing = firstChar == type;
+      if (type == "vardef") return lexical.indented + 4;
+      else if (type == "form" && firstChar == "{") return lexical.indented;
+      else if (type == "stat" || type == "form") return lexical.indented + indentUnit;
+      else if (lexical.info == "switch" && !closing)
+        return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit);
+      else if (lexical.align) return lexical.column + (closing ? 0 : 1);
+      else return lexical.indented + (closing ? 0 : indentUnit);
+    },
+
+    electricChars: "{}",
+    blockCommentStart: "/*",
+    blockCommentEnd: "*/",
+    lineComment: "//"
+  };
+});
+
+CodeMirror.defineMIME("text/x-haxe", "haxe");
+
+CodeMirror.defineMode("hxml", function () {
+
+  return {
+    startState: function () {
+      return {
+        define: false,
+        inString: false
+      };
+    },
+    token: function (stream, state) {
+      var ch = stream.peek();
+      var sol = stream.sol();
+
+      ///* comments */
+      if (ch == "#") {
+        stream.skipToEnd();
+        return "comment";
+      }
+      if (sol && ch == "-") {
+        var style = "variable-2";
+
+        stream.eat(/-/);
+
+        if (stream.peek() == "-") {
+          stream.eat(/-/);
+          style = "keyword a";
+        }
+
+        if (stream.peek() == "D") {
+          stream.eat(/[D]/);
+          style = "keyword c";
+          state.define = true;
+        }
+
+        stream.eatWhile(/[A-Z]/i);
+        return style;
+      }
+
+      var ch = stream.peek();
+
+      if (state.inString == false && ch == "'") {
+        state.inString = true;
+        ch = stream.next();
+      }
+
+      if (state.inString == true) {
+        if (stream.skipTo("'")) {
+
+        } else {
+          stream.skipToEnd();
+        }
+
+        if (stream.peek() == "'") {
+          stream.next();
+          state.inString = false;
+        }
+
+        return "string";
+      }
+
+      stream.next();
+      return null;
+    },
+    lineComment: "#"
+  };
+});
+
+CodeMirror.defineMIME("text/x-hxml", "hxml");
+
+});
diff --git a/public/codemirror/mode/haxe/index.html b/public/codemirror/mode/haxe/index.html
new file mode 100644
index 000000000..d415b5e10
--- /dev/null
+++ b/public/codemirror/mode/haxe/index.html
@@ -0,0 +1,124 @@
+
+
+CodeMirror: Haxe mode
+
+
+
+
+
+
+
+
+
+

+
Haxe mode

+
+
+

+
+
Hxml mode:

+
+

+

+
+    
+
+    
MIME types defined: text/x-haxe, text/x-hxml.

+  

diff --git a/public/codemirror/mode/htmlembedded/htmlembedded.js b/public/codemirror/mode/htmlembedded/htmlembedded.js
new file mode 100644
index 000000000..464dc57f8
--- /dev/null
+++ b/public/codemirror/mode/htmlembedded/htmlembedded.js
@@ -0,0 +1,28 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../htmlmixed/htmlmixed"),
+        require("../../addon/mode/multiplex"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../htmlmixed/htmlmixed",
+            "../../addon/mode/multiplex"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineMode("htmlembedded", function(config, parserConfig) {
+    return CodeMirror.multiplexingMode(CodeMirror.getMode(config, "htmlmixed"), {
+      open: parserConfig.open || parserConfig.scriptStartRegex || "<%",
+      close: parserConfig.close || parserConfig.scriptEndRegex || "%>",
+      mode: CodeMirror.getMode(config, parserConfig.scriptingModeSpec)
+    });
+  }, "htmlmixed");
+
+  CodeMirror.defineMIME("application/x-ejs", {name: "htmlembedded", scriptingModeSpec:"javascript"});
+  CodeMirror.defineMIME("application/x-aspx", {name: "htmlembedded", scriptingModeSpec:"text/x-csharp"});
+  CodeMirror.defineMIME("application/x-jsp", {name: "htmlembedded", scriptingModeSpec:"text/x-java"});
+  CodeMirror.defineMIME("application/x-erb", {name: "htmlembedded", scriptingModeSpec:"ruby"});
+});
diff --git a/public/codemirror/mode/htmlembedded/index.html b/public/codemirror/mode/htmlembedded/index.html
new file mode 100644
index 000000000..9ed33cffe
--- /dev/null
+++ b/public/codemirror/mode/htmlembedded/index.html
@@ -0,0 +1,60 @@
+
+
+CodeMirror: Html Embedded Scripts mode
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

+
Html Embedded Scripts mode

+

+
+    
+
+    
Mode for html embedded scripts like JSP and ASP.NET. Depends on multiplex and HtmlMixed which in turn depends on
+    JavaScript, CSS and XML.
Other dependencies include those of the scripting language chosen.

+
+    
MIME types defined: application/x-aspx (ASP.NET),
+    application/x-ejs (Embedded Javascript), application/x-jsp (JavaServer Pages)
+    and application/x-erb

+  

diff --git a/public/codemirror/mode/htmlmixed/htmlmixed.js b/public/codemirror/mode/htmlmixed/htmlmixed.js
new file mode 100644
index 000000000..16b4f139f
--- /dev/null
+++ b/public/codemirror/mode/htmlmixed/htmlmixed.js
@@ -0,0 +1,152 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../xml/xml"), require("../javascript/javascript"), require("../css/css"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../xml/xml", "../javascript/javascript", "../css/css"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  var defaultTags = {
+    script: [
+      ["lang", /(javascript|babel)/i, "javascript"],
+      ["type", /^(?:text|application)\/(?:x-)?(?:java|ecma)script$|^module$|^$/i, "javascript"],
+      ["type", /./, "text/plain"],
+      [null, null, "javascript"]
+    ],
+    style:  [
+      ["lang", /^css$/i, "css"],
+      ["type", /^(text\/)?(x-)?(stylesheet|css)$/i, "css"],
+      ["type", /./, "text/plain"],
+      [null, null, "css"]
+    ]
+  };
+
+  function maybeBackup(stream, pat, style) {
+    var cur = stream.current(), close = cur.search(pat);
+    if (close > -1) {
+      stream.backUp(cur.length - close);
+    } else if (cur.match(/<\/?$/)) {
+      stream.backUp(cur.length);
+      if (!stream.match(pat, false)) stream.match(cur);
+    }
+    return style;
+  }
+
+  var attrRegexpCache = {};
+  function getAttrRegexp(attr) {
+    var regexp = attrRegexpCache[attr];
+    if (regexp) return regexp;
+    return attrRegexpCache[attr] = new RegExp("\\s+" + attr + "\\s*=\\s*('|\")?([^'\"]+)('|\")?\\s*");
+  }
+
+  function getAttrValue(text, attr) {
+    var match = text.match(getAttrRegexp(attr))
+    return match ? /^\s*(.*?)\s*$/.exec(match[2])[1] : ""
+  }
+
+  function getTagRegexp(tagName, anchored) {
+    return new RegExp((anchored ? "^" : "") + "<\/\s*" + tagName + "\s*>", "i");
+  }
+
+  function addTags(from, to) {
+    for (var tag in from) {
+      var dest = to[tag] || (to[tag] = []);
+      var source = from[tag];
+      for (var i = source.length - 1; i >= 0; i--)
+        dest.unshift(source[i])
+    }
+  }
+
+  function findMatchingMode(tagInfo, tagText) {
+    for (var i = 0; i < tagInfo.length; i++) {
+      var spec = tagInfo[i];
+      if (!spec[0] || spec[1].test(getAttrValue(tagText, spec[0]))) return spec[2];
+    }
+  }
+
+  CodeMirror.defineMode("htmlmixed", function (config, parserConfig) {
+    var htmlMode = CodeMirror.getMode(config, {
+      name: "xml",
+      htmlMode: true,
+      multilineTagIndentFactor: parserConfig.multilineTagIndentFactor,
+      multilineTagIndentPastTag: parserConfig.multilineTagIndentPastTag
+    });
+
+    var tags = {};
+    var configTags = parserConfig && parserConfig.tags, configScript = parserConfig && parserConfig.scriptTypes;
+    addTags(defaultTags, tags);
+    if (configTags) addTags(configTags, tags);
+    if (configScript) for (var i = configScript.length - 1; i >= 0; i--)
+      tags.script.unshift(["type", configScript[i].matches, configScript[i].mode])
+
+    function html(stream, state) {
+      var style = htmlMode.token(stream, state.htmlState), tag = /\btag\b/.test(style), tagName
+      if (tag && !/[<>\s\/]/.test(stream.current()) &&
+          (tagName = state.htmlState.tagName && state.htmlState.tagName.toLowerCase()) &&
+          tags.hasOwnProperty(tagName)) {
+        state.inTag = tagName + " "
+      } else if (state.inTag && tag && />$/.test(stream.current())) {
+        var inTag = /^([\S]+) (.*)/.exec(state.inTag)
+        state.inTag = null
+        var modeSpec = stream.current() == ">" && findMatchingMode(tags[inTag[1]], inTag[2])
+        var mode = CodeMirror.getMode(config, modeSpec)
+        var endTagA = getTagRegexp(inTag[1], true), endTag = getTagRegexp(inTag[1], false);
+        state.token = function (stream, state) {
+          if (stream.match(endTagA, false)) {
+            state.token = html;
+            state.localState = state.localMode = null;
+            return null;
+          }
+          return maybeBackup(stream, endTag, state.localMode.token(stream, state.localState));
+        };
+        state.localMode = mode;
+        state.localState = CodeMirror.startState(mode, htmlMode.indent(state.htmlState, ""));
+      } else if (state.inTag) {
+        state.inTag += stream.current()
+        if (stream.eol()) state.inTag += " "
+      }
+      return style;
+    };
+
+    return {
+      startState: function () {
+        var state = CodeMirror.startState(htmlMode);
+        return {token: html, inTag: null, localMode: null, localState: null, htmlState: state};
+      },
+
+      copyState: function (state) {
+        var local;
+        if (state.localState) {
+          local = CodeMirror.copyState(state.localMode, state.localState);
+        }
+        return {token: state.token, inTag: state.inTag,
+                localMode: state.localMode, localState: local,
+                htmlState: CodeMirror.copyState(htmlMode, state.htmlState)};
+      },
+
+      token: function (stream, state) {
+        return state.token(stream, state);
+      },
+
+      indent: function (state, textAfter) {
+        if (!state.localMode || /^\s*<\//.test(textAfter))
+          return htmlMode.indent(state.htmlState, textAfter);
+        else if (state.localMode.indent)
+          return state.localMode.indent(state.localState, textAfter);
+        else
+          return CodeMirror.Pass;
+      },
+
+      innerMode: function (state) {
+        return {state: state.localState || state.htmlState, mode: state.localMode || htmlMode};
+      }
+    };
+  }, "xml", "javascript", "css");
+
+  CodeMirror.defineMIME("text/html", "htmlmixed");
+});
diff --git a/public/codemirror/mode/htmlmixed/index.html b/public/codemirror/mode/htmlmixed/index.html
new file mode 100644
index 000000000..caa7546c1
--- /dev/null
+++ b/public/codemirror/mode/htmlmixed/index.html
@@ -0,0 +1,100 @@
+
+
+CodeMirror: HTML mixed mode
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

+
HTML mixed mode

+

+    
+
+    
The HTML mixed mode depends on the XML, JavaScript, and CSS modes.

+
+    
It takes an optional mode configuration
+    option, tags, which can be used to add custom
+    behavior for specific tags. When given, it should be an object
+    mapping tag names (for example script) to arrays or
+    three-element arrays. Those inner arrays indicate [attributeName,
+    valueRegexp, modeSpec]
+    specifications. For example, you could use ["type", /^foo$/,
+    "foo"] to map the attribute type="foo" to
+    the foo mode. When the first two fields are null
+    ([null, null, "mode"]), the given mode is used for
+    any such tag that doesn't match any of the previously given
+    attributes. For example:

+
+    
var myModeSpec = {
+  name: "htmlmixed",
+  tags: {
+    style: [["type", /^text/(x-)?scss$/, "text/x-scss"],
+            [null, null, "css"]],
+    custom: [[null, null, "customMode"]]
+  }
+}

+
+    
MIME types defined: text/html
+    (redefined, only takes effect if you load this parser after the
+    XML parser).

+
+  

diff --git a/public/codemirror/mode/http/http.js b/public/codemirror/mode/http/http.js
new file mode 100644
index 000000000..9a3c5f9fd
--- /dev/null
+++ b/public/codemirror/mode/http/http.js
@@ -0,0 +1,113 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("http", function() {
+  function failFirstLine(stream, state) {
+    stream.skipToEnd();
+    state.cur = header;
+    return "error";
+  }
+
+  function start(stream, state) {
+    if (stream.match(/^HTTP\/\d\.\d/)) {
+      state.cur = responseStatusCode;
+      return "keyword";
+    } else if (stream.match(/^[A-Z]+/) && /[ \t]/.test(stream.peek())) {
+      state.cur = requestPath;
+      return "keyword";
+    } else {
+      return failFirstLine(stream, state);
+    }
+  }
+
+  function responseStatusCode(stream, state) {
+    var code = stream.match(/^\d+/);
+    if (!code) return failFirstLine(stream, state);
+
+    state.cur = responseStatusText;
+    var status = Number(code[0]);
+    if (status >= 100 && status < 200) {
+      return "positive informational";
+    } else if (status >= 200 && status < 300) {
+      return "positive success";
+    } else if (status >= 300 && status < 400) {
+      return "positive redirect";
+    } else if (status >= 400 && status < 500) {
+      return "negative client-error";
+    } else if (status >= 500 && status < 600) {
+      return "negative server-error";
+    } else {
+      return "error";
+    }
+  }
+
+  function responseStatusText(stream, state) {
+    stream.skipToEnd();
+    state.cur = header;
+    return null;
+  }
+
+  function requestPath(stream, state) {
+    stream.eatWhile(/\S/);
+    state.cur = requestProtocol;
+    return "string-2";
+  }
+
+  function requestProtocol(stream, state) {
+    if (stream.match(/^HTTP\/\d\.\d$/)) {
+      state.cur = header;
+      return "keyword";
+    } else {
+      return failFirstLine(stream, state);
+    }
+  }
+
+  function header(stream) {
+    if (stream.sol() && !stream.eat(/[ \t]/)) {
+      if (stream.match(/^.*?:/)) {
+        return "atom";
+      } else {
+        stream.skipToEnd();
+        return "error";
+      }
+    } else {
+      stream.skipToEnd();
+      return "string";
+    }
+  }
+
+  function body(stream) {
+    stream.skipToEnd();
+    return null;
+  }
+
+  return {
+    token: function(stream, state) {
+      var cur = state.cur;
+      if (cur != header && cur != body && stream.eatSpace()) return null;
+      return cur(stream, state);
+    },
+
+    blankLine: function(state) {
+      state.cur = body;
+    },
+
+    startState: function() {
+      return {cur: start};
+    }
+  };
+});
+
+CodeMirror.defineMIME("message/http", "http");
+
+});
diff --git a/public/codemirror/mode/http/index.html b/public/codemirror/mode/http/index.html
new file mode 100644
index 000000000..0b8d5315d
--- /dev/null
+++ b/public/codemirror/mode/http/index.html
@@ -0,0 +1,45 @@
+
+
+CodeMirror: HTTP mode
+
+
+
+
+
+
+
+
+
+

+
HTTP mode

+
+
+

+
+    
+
+    
MIME types defined: message/http.

+  

diff --git a/public/codemirror/mode/idl/idl.js b/public/codemirror/mode/idl/idl.js
new file mode 100644
index 000000000..07308d71d
--- /dev/null
+++ b/public/codemirror/mode/idl/idl.js
@@ -0,0 +1,290 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  function wordRegexp(words) {
+    return new RegExp('^((' + words.join(')|(') + '))\\b', 'i');
+  };
+
+  var builtinArray = [
+    'a_correlate', 'abs', 'acos', 'adapt_hist_equal', 'alog',
+    'alog2', 'alog10', 'amoeba', 'annotate', 'app_user_dir',
+    'app_user_dir_query', 'arg_present', 'array_equal', 'array_indices',
+    'arrow', 'ascii_template', 'asin', 'assoc', 'atan',
+    'axis', 'axis', 'bandpass_filter', 'bandreject_filter', 'barplot',
+    'bar_plot', 'beseli', 'beselj', 'beselk', 'besely',
+    'beta', 'biginteger', 'bilinear', 'bin_date', 'binary_template',
+    'bindgen', 'binomial', 'bit_ffs', 'bit_population', 'blas_axpy',
+    'blk_con', 'boolarr', 'boolean', 'boxplot', 'box_cursor',
+    'breakpoint', 'broyden', 'bubbleplot', 'butterworth', 'bytarr',
+    'byte', 'byteorder', 'bytscl', 'c_correlate', 'calendar',
+    'caldat', 'call_external', 'call_function', 'call_method',
+    'call_procedure', 'canny', 'catch', 'cd', 'cdf', 'ceil',
+    'chebyshev', 'check_math', 'chisqr_cvf', 'chisqr_pdf', 'choldc',
+    'cholsol', 'cindgen', 'cir_3pnt', 'clipboard', 'close',
+    'clust_wts', 'cluster', 'cluster_tree', 'cmyk_convert', 'code_coverage',
+    'color_convert', 'color_exchange', 'color_quan', 'color_range_map',
+    'colorbar', 'colorize_sample', 'colormap_applicable',
+    'colormap_gradient', 'colormap_rotation', 'colortable',
+    'comfit', 'command_line_args', 'common', 'compile_opt', 'complex',
+    'complexarr', 'complexround', 'compute_mesh_normals', 'cond', 'congrid',
+    'conj', 'constrained_min', 'contour', 'contour', 'convert_coord',
+    'convol', 'convol_fft', 'coord2to3', 'copy_lun', 'correlate',
+    'cos', 'cosh', 'cpu', 'cramer', 'createboxplotdata',
+    'create_cursor', 'create_struct', 'create_view', 'crossp', 'crvlength',
+    'ct_luminance', 'cti_test', 'cursor', 'curvefit', 'cv_coord',
+    'cvttobm', 'cw_animate', 'cw_animate_getp', 'cw_animate_load',
+    'cw_animate_run', 'cw_arcball', 'cw_bgroup', 'cw_clr_index',
+    'cw_colorsel', 'cw_defroi', 'cw_field', 'cw_filesel', 'cw_form',
+    'cw_fslider', 'cw_light_editor', 'cw_light_editor_get',
+    'cw_light_editor_set', 'cw_orient', 'cw_palette_editor',
+    'cw_palette_editor_get', 'cw_palette_editor_set', 'cw_pdmenu',
+    'cw_rgbslider', 'cw_tmpl', 'cw_zoom', 'db_exists',
+    'dblarr', 'dcindgen', 'dcomplex', 'dcomplexarr', 'define_key',
+    'define_msgblk', 'define_msgblk_from_file', 'defroi', 'defsysv',
+    'delvar', 'dendro_plot', 'dendrogram', 'deriv', 'derivsig',
+    'determ', 'device', 'dfpmin', 'diag_matrix', 'dialog_dbconnect',
+    'dialog_message', 'dialog_pickfile', 'dialog_printersetup',
+    'dialog_printjob', 'dialog_read_image',
+    'dialog_write_image', 'dictionary', 'digital_filter', 'dilate', 'dindgen',
+    'dissolve', 'dist', 'distance_measure', 'dlm_load', 'dlm_register',
+    'doc_library', 'double', 'draw_roi', 'edge_dog', 'efont',
+    'eigenql', 'eigenvec', 'ellipse', 'elmhes', 'emboss',
+    'empty', 'enable_sysrtn', 'eof', 'eos', 'erase',
+    'erf', 'erfc', 'erfcx', 'erode', 'errorplot',
+    'errplot', 'estimator_filter', 'execute', 'exit', 'exp',
+    'expand', 'expand_path', 'expint', 'extrac', 'extract_slice',
+    'f_cvf', 'f_pdf', 'factorial', 'fft', 'file_basename',
+    'file_chmod', 'file_copy', 'file_delete', 'file_dirname',
+    'file_expand_path', 'file_gunzip', 'file_gzip', 'file_info',
+    'file_lines', 'file_link', 'file_mkdir', 'file_move',
+    'file_poll_input', 'file_readlink', 'file_same',
+    'file_search', 'file_tar', 'file_test', 'file_untar', 'file_unzip',
+    'file_which', 'file_zip', 'filepath', 'findgen', 'finite',
+    'fix', 'flick', 'float', 'floor', 'flow3',
+    'fltarr', 'flush', 'format_axis_values', 'forward_function', 'free_lun',
+    'fstat', 'fulstr', 'funct', 'function', 'fv_test',
+    'fx_root', 'fz_roots', 'gamma', 'gamma_ct', 'gauss_cvf',
+    'gauss_pdf', 'gauss_smooth', 'gauss2dfit', 'gaussfit',
+    'gaussian_function', 'gaussint', 'get_drive_list', 'get_dxf_objects',
+    'get_kbrd', 'get_login_info',
+    'get_lun', 'get_screen_size', 'getenv', 'getwindows', 'greg2jul',
+    'grib', 'grid_input', 'grid_tps', 'grid3', 'griddata',
+    'gs_iter', 'h_eq_ct', 'h_eq_int', 'hanning', 'hash',
+    'hdf', 'hdf5', 'heap_free', 'heap_gc', 'heap_nosave',
+    'heap_refcount', 'heap_save', 'help', 'hilbert', 'hist_2d',
+    'hist_equal', 'histogram', 'hls', 'hough', 'hqr',
+    'hsv', 'i18n_multibytetoutf8',
+    'i18n_multibytetowidechar', 'i18n_utf8tomultibyte',
+    'i18n_widechartomultibyte',
+    'ibeta', 'icontour', 'iconvertcoord', 'idelete', 'identity',
+    'idl_base64', 'idl_container', 'idl_validname',
+    'idlexbr_assistant', 'idlitsys_createtool',
+    'idlunit', 'iellipse', 'igamma', 'igetcurrent', 'igetdata',
+    'igetid', 'igetproperty', 'iimage', 'image', 'image_cont',
+    'image_statistics', 'image_threshold', 'imaginary', 'imap', 'indgen',
+    'int_2d', 'int_3d', 'int_tabulated', 'intarr', 'interpol',
+    'interpolate', 'interval_volume', 'invert', 'ioctl', 'iopen',
+    'ir_filter', 'iplot', 'ipolygon', 'ipolyline', 'iputdata',
+    'iregister', 'ireset', 'iresolve', 'irotate', 'isa',
+    'isave', 'iscale', 'isetcurrent', 'isetproperty', 'ishft',
+    'isocontour', 'isosurface', 'isurface', 'itext', 'itranslate',
+    'ivector', 'ivolume', 'izoom', 'journal', 'json_parse',
+    'json_serialize', 'jul2greg', 'julday', 'keyword_set', 'krig2d',
+    'kurtosis', 'kw_test', 'l64indgen', 'la_choldc', 'la_cholmprove',
+    'la_cholsol', 'la_determ', 'la_eigenproblem', 'la_eigenql', 'la_eigenvec',
+    'la_elmhes', 'la_gm_linear_model', 'la_hqr', 'la_invert',
+    'la_least_square_equality', 'la_least_squares', 'la_linear_equation',
+    'la_ludc', 'la_lumprove', 'la_lusol',
+    'la_svd', 'la_tridc', 'la_trimprove', 'la_triql', 'la_trired',
+    'la_trisol', 'label_date', 'label_region', 'ladfit', 'laguerre',
+    'lambda', 'lambdap', 'lambertw', 'laplacian', 'least_squares_filter',
+    'leefilt', 'legend', 'legendre', 'linbcg', 'lindgen',
+    'linfit', 'linkimage', 'list', 'll_arc_distance', 'lmfit',
+    'lmgr', 'lngamma', 'lnp_test', 'loadct', 'locale_get',
+    'logical_and', 'logical_or', 'logical_true', 'lon64arr', 'lonarr',
+    'long', 'long64', 'lsode', 'lu_complex', 'ludc',
+    'lumprove', 'lusol', 'm_correlate', 'machar', 'make_array',
+    'make_dll', 'make_rt', 'map', 'mapcontinents', 'mapgrid',
+    'map_2points', 'map_continents', 'map_grid', 'map_image', 'map_patch',
+    'map_proj_forward', 'map_proj_image', 'map_proj_info',
+    'map_proj_init', 'map_proj_inverse',
+    'map_set', 'matrix_multiply', 'matrix_power', 'max', 'md_test',
+    'mean', 'meanabsdev', 'mean_filter', 'median', 'memory',
+    'mesh_clip', 'mesh_decimate', 'mesh_issolid',
+    'mesh_merge', 'mesh_numtriangles',
+    'mesh_obj', 'mesh_smooth', 'mesh_surfacearea',
+    'mesh_validate', 'mesh_volume',
+    'message', 'min', 'min_curve_surf', 'mk_html_help', 'modifyct',
+    'moment', 'morph_close', 'morph_distance',
+    'morph_gradient', 'morph_hitormiss',
+    'morph_open', 'morph_thin', 'morph_tophat', 'multi', 'n_elements',
+    'n_params', 'n_tags', 'ncdf', 'newton', 'noise_hurl',
+    'noise_pick', 'noise_scatter', 'noise_slur', 'norm', 'obj_class',
+    'obj_destroy', 'obj_hasmethod', 'obj_isa', 'obj_new', 'obj_valid',
+    'objarr', 'on_error', 'on_ioerror', 'online_help', 'openr',
+    'openu', 'openw', 'oplot', 'oploterr', 'orderedhash',
+    'p_correlate', 'parse_url', 'particle_trace', 'path_cache', 'path_sep',
+    'pcomp', 'plot', 'plot3d', 'plot', 'plot_3dbox',
+    'plot_field', 'ploterr', 'plots', 'polar_contour', 'polar_surface',
+    'polyfill', 'polyshade', 'pnt_line', 'point_lun', 'polarplot',
+    'poly', 'poly_2d', 'poly_area', 'poly_fit', 'polyfillv',
+    'polygon', 'polyline', 'polywarp', 'popd', 'powell',
+    'pref_commit', 'pref_get', 'pref_set', 'prewitt', 'primes',
+    'print', 'printf', 'printd', 'pro', 'product',
+    'profile', 'profiler', 'profiles', 'project_vol', 'ps_show_fonts',
+    'psafm', 'pseudo', 'ptr_free', 'ptr_new', 'ptr_valid',
+    'ptrarr', 'pushd', 'qgrid3', 'qhull', 'qromb',
+    'qromo', 'qsimp', 'query_*', 'query_ascii', 'query_bmp',
+    'query_csv', 'query_dicom', 'query_gif', 'query_image', 'query_jpeg',
+    'query_jpeg2000', 'query_mrsid', 'query_pict', 'query_png', 'query_ppm',
+    'query_srf', 'query_tiff', 'query_video', 'query_wav', 'r_correlate',
+    'r_test', 'radon', 'randomn', 'randomu', 'ranks',
+    'rdpix', 'read', 'readf', 'read_ascii', 'read_binary',
+    'read_bmp', 'read_csv', 'read_dicom', 'read_gif', 'read_image',
+    'read_interfile', 'read_jpeg', 'read_jpeg2000', 'read_mrsid', 'read_pict',
+    'read_png', 'read_ppm', 'read_spr', 'read_srf', 'read_sylk',
+    'read_tiff', 'read_video', 'read_wav', 'read_wave', 'read_x11_bitmap',
+    'read_xwd', 'reads', 'readu', 'real_part', 'rebin',
+    'recall_commands', 'recon3', 'reduce_colors', 'reform', 'region_grow',
+    'register_cursor', 'regress', 'replicate',
+    'replicate_inplace', 'resolve_all',
+    'resolve_routine', 'restore', 'retall', 'return', 'reverse',
+    'rk4', 'roberts', 'rot', 'rotate', 'round',
+    'routine_filepath', 'routine_info', 'rs_test', 's_test', 'save',
+    'savgol', 'scale3', 'scale3d', 'scatterplot', 'scatterplot3d',
+    'scope_level', 'scope_traceback', 'scope_varfetch',
+    'scope_varname', 'search2d',
+    'search3d', 'sem_create', 'sem_delete', 'sem_lock', 'sem_release',
+    'set_plot', 'set_shading', 'setenv', 'sfit', 'shade_surf',
+    'shade_surf_irr', 'shade_volume', 'shift', 'shift_diff', 'shmdebug',
+    'shmmap', 'shmunmap', 'shmvar', 'show3', 'showfont',
+    'signum', 'simplex', 'sin', 'sindgen', 'sinh',
+    'size', 'skewness', 'skip_lun', 'slicer3', 'slide_image',
+    'smooth', 'sobel', 'socket', 'sort', 'spawn',
+    'sph_4pnt', 'sph_scat', 'spher_harm', 'spl_init', 'spl_interp',
+    'spline', 'spline_p', 'sprsab', 'sprsax', 'sprsin',
+    'sprstp', 'sqrt', 'standardize', 'stddev', 'stop',
+    'strarr', 'strcmp', 'strcompress', 'streamline', 'streamline',
+    'stregex', 'stretch', 'string', 'strjoin', 'strlen',
+    'strlowcase', 'strmatch', 'strmessage', 'strmid', 'strpos',
+    'strput', 'strsplit', 'strtrim', 'struct_assign', 'struct_hide',
+    'strupcase', 'surface', 'surface', 'surfr', 'svdc',
+    'svdfit', 'svsol', 'swap_endian', 'swap_endian_inplace', 'symbol',
+    'systime', 't_cvf', 't_pdf', 't3d', 'tag_names',
+    'tan', 'tanh', 'tek_color', 'temporary', 'terminal_size',
+    'tetra_clip', 'tetra_surface', 'tetra_volume', 'text', 'thin',
+    'thread', 'threed', 'tic', 'time_test2', 'timegen',
+    'timer', 'timestamp', 'timestamptovalues', 'tm_test', 'toc',
+    'total', 'trace', 'transpose', 'tri_surf', 'triangulate',
+    'trigrid', 'triql', 'trired', 'trisol', 'truncate_lun',
+    'ts_coef', 'ts_diff', 'ts_fcast', 'ts_smooth', 'tv',
+    'tvcrs', 'tvlct', 'tvrd', 'tvscl', 'typename',
+    'uindgen', 'uint', 'uintarr', 'ul64indgen', 'ulindgen',
+    'ulon64arr', 'ulonarr', 'ulong', 'ulong64', 'uniq',
+    'unsharp_mask', 'usersym', 'value_locate', 'variance', 'vector',
+    'vector_field', 'vel', 'velovect', 'vert_t3d', 'voigt',
+    'volume', 'voronoi', 'voxel_proj', 'wait', 'warp_tri',
+    'watershed', 'wdelete', 'wf_draw', 'where', 'widget_base',
+    'widget_button', 'widget_combobox', 'widget_control',
+    'widget_displaycontextmenu', 'widget_draw',
+    'widget_droplist', 'widget_event', 'widget_info',
+    'widget_label', 'widget_list',
+    'widget_propertysheet', 'widget_slider', 'widget_tab',
+    'widget_table', 'widget_text',
+    'widget_tree', 'widget_tree_move', 'widget_window',
+    'wiener_filter', 'window',
+    'window', 'write_bmp', 'write_csv', 'write_gif', 'write_image',
+    'write_jpeg', 'write_jpeg2000', 'write_nrif', 'write_pict', 'write_png',
+    'write_ppm', 'write_spr', 'write_srf', 'write_sylk', 'write_tiff',
+    'write_video', 'write_wav', 'write_wave', 'writeu', 'wset',
+    'wshow', 'wtn', 'wv_applet', 'wv_cwt', 'wv_cw_wavelet',
+    'wv_denoise', 'wv_dwt', 'wv_fn_coiflet',
+    'wv_fn_daubechies', 'wv_fn_gaussian',
+    'wv_fn_haar', 'wv_fn_morlet', 'wv_fn_paul',
+    'wv_fn_symlet', 'wv_import_data',
+    'wv_import_wavelet', 'wv_plot3d_wps', 'wv_plot_multires',
+    'wv_pwt', 'wv_tool_denoise',
+    'xbm_edit', 'xdisplayfile', 'xdxf', 'xfont', 'xinteranimate',
+    'xloadct', 'xmanager', 'xmng_tmpl', 'xmtool', 'xobjview',
+    'xobjview_rotate', 'xobjview_write_image',
+    'xpalette', 'xpcolor', 'xplot3d',
+    'xregistered', 'xroi', 'xsq_test', 'xsurface', 'xvaredit',
+    'xvolume', 'xvolume_rotate', 'xvolume_write_image',
+    'xyouts', 'zlib_compress', 'zlib_uncompress', 'zoom', 'zoom_24'
+  ];
+  var builtins = wordRegexp(builtinArray);
+
+  var keywordArray = [
+    'begin', 'end', 'endcase', 'endfor',
+    'endwhile', 'endif', 'endrep', 'endforeach',
+    'break', 'case', 'continue', 'for',
+    'foreach', 'goto', 'if', 'then', 'else',
+    'repeat', 'until', 'switch', 'while',
+    'do', 'pro', 'function'
+  ];
+  var keywords = wordRegexp(keywordArray);
+
+  CodeMirror.registerHelper("hintWords", "idl", builtinArray.concat(keywordArray));
+
+  var identifiers = new RegExp('^[_a-z\xa1-\uffff][_a-z0-9\xa1-\uffff]*', 'i');
+
+  var singleOperators = /[+\-*&=<>\/@#~$]/;
+  var boolOperators = new RegExp('(and|or|eq|lt|le|gt|ge|ne|not)', 'i');
+
+  function tokenBase(stream) {
+    // whitespaces
+    if (stream.eatSpace()) return null;
+
+    // Handle one line Comments
+    if (stream.match(';')) {
+      stream.skipToEnd();
+      return 'comment';
+    }
+
+    // Handle Number Literals
+    if (stream.match(/^[0-9\.+-]/, false)) {
+      if (stream.match(/^[+-]?0x[0-9a-fA-F]+/))
+        return 'number';
+      if (stream.match(/^[+-]?\d*\.\d+([EeDd][+-]?\d+)?/))
+        return 'number';
+      if (stream.match(/^[+-]?\d+([EeDd][+-]?\d+)?/))
+        return 'number';
+    }
+
+    // Handle Strings
+    if (stream.match(/^"([^"]|(""))*"/)) { return 'string'; }
+    if (stream.match(/^'([^']|(''))*'/)) { return 'string'; }
+
+    // Handle words
+    if (stream.match(keywords)) { return 'keyword'; }
+    if (stream.match(builtins)) { return 'builtin'; }
+    if (stream.match(identifiers)) { return 'variable'; }
+
+    if (stream.match(singleOperators) || stream.match(boolOperators)) {
+      return 'operator'; }
+
+    // Handle non-detected items
+    stream.next();
+    return null;
+  };
+
+  CodeMirror.defineMode('idl', function() {
+    return {
+      token: function(stream) {
+        return tokenBase(stream);
+      }
+    };
+  });
+
+  CodeMirror.defineMIME('text/x-idl', 'idl');
+});
diff --git a/public/codemirror/mode/idl/index.html b/public/codemirror/mode/idl/index.html
new file mode 100644
index 000000000..4c169e2d6
--- /dev/null
+++ b/public/codemirror/mode/idl/index.html
@@ -0,0 +1,64 @@
+
+
+CodeMirror: IDL mode
+
+
+
+
+
+
+
+
+
+

+
IDL mode

+
+    

+    
+
+    
MIME types defined: text/x-idl.

+

diff --git a/public/codemirror/mode/index.html b/public/codemirror/mode/index.html
new file mode 100644
index 000000000..c0001a53e
--- /dev/null
+++ b/public/codemirror/mode/index.html
@@ -0,0 +1,165 @@
+
+
+CodeMirror: Language Modes
+
+
+
+
+
+

+
+  
Language modes

+
+  
This is a list of every mode in the distribution. Each mode lives
+in a subdirectory of the mode/ directory, and typically
+defines a single JavaScript file that implements the mode. Loading
+such file will make the language available to CodeMirror, through
+the mode
+option.

+
+  

+    
+  

+
+

diff --git a/public/codemirror/mode/javascript/index.html b/public/codemirror/mode/javascript/index.html
new file mode 100644
index 000000000..592a133d8
--- /dev/null
+++ b/public/codemirror/mode/javascript/index.html
@@ -0,0 +1,114 @@
+
+
+CodeMirror: JavaScript mode
+
+
+
+
+
+
+
+
+
+
+
+
+

+
JavaScript mode

+
+
+

+
+    
+
+    

+      JavaScript mode supports several configuration options:
+      
    
+        
  • json which will set the mode to expect JSON
+        data rather than a JavaScript program.
    • 
+        
  • jsonld which will set the mode to expect
+        JSON-LD linked data rather
+        than a JavaScript program (demo).
    • 
+        
  • typescript which will activate additional
+        syntax highlighting and some other things for TypeScript code
+        (demo).
    • 
+        
  • statementIndent which (given a number) will
+        determine the amount of indentation to use for statements
+        continued on a new line.
    • 
+        
  • wordCharacters, a regexp that indicates which
+        characters should be considered part of an identifier.
+        Defaults to /[\w$]/, which does not handle
+        non-ASCII identifiers. Can be set to something more elaborate
+        to improve Unicode support.
    • 
+      

+    

+
+    
MIME types defined: text/javascript, application/json, application/ld+json, text/typescript, application/typescript.

+  

diff --git a/public/codemirror/mode/javascript/javascript.js b/public/codemirror/mode/javascript/javascript.js
new file mode 100644
index 000000000..3f614cc2c
--- /dev/null
+++ b/public/codemirror/mode/javascript/javascript.js
@@ -0,0 +1,802 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+function expressionAllowed(stream, state, backUp) {
+  return /^(?:operator|sof|keyword c|case|new|export|default|[\[{}\(,;:]|=>)$/.test(state.lastType) ||
+    (state.lastType == "quasi" && /\{\s*$/.test(stream.string.slice(0, stream.pos - (backUp || 0))))
+}
+
+CodeMirror.defineMode("javascript", function(config, parserConfig) {
+  var indentUnit = config.indentUnit;
+  var statementIndent = parserConfig.statementIndent;
+  var jsonldMode = parserConfig.jsonld;
+  var jsonMode = parserConfig.json || jsonldMode;
+  var isTS = parserConfig.typescript;
+  var wordRE = parserConfig.wordCharacters || /[\w$\xa1-\uffff]/;
+
+  // Tokenizer
+
+  var keywords = function(){
+    function kw(type) {return {type: type, style: "keyword"};}
+    var A = kw("keyword a"), B = kw("keyword b"), C = kw("keyword c");
+    var operator = kw("operator"), atom = {type: "atom", style: "atom"};
+
+    var jsKeywords = {
+      "if": kw("if"), "while": A, "with": A, "else": B, "do": B, "try": B, "finally": B,
+      "return": C, "break": C, "continue": C, "new": kw("new"), "delete": C, "throw": C, "debugger": C,
+      "var": kw("var"), "const": kw("var"), "let": kw("var"),
+      "function": kw("function"), "catch": kw("catch"),
+      "for": kw("for"), "switch": kw("switch"), "case": kw("case"), "default": kw("default"),
+      "in": operator, "typeof": operator, "instanceof": operator,
+      "true": atom, "false": atom, "null": atom, "undefined": atom, "NaN": atom, "Infinity": atom,
+      "this": kw("this"), "class": kw("class"), "super": kw("atom"),
+      "yield": C, "export": kw("export"), "import": kw("import"), "extends": C,
+      "await": C, "async": kw("async")
+    };
+
+    // Extend the 'normal' keywords with the TypeScript language extensions
+    if (isTS) {
+      var type = {type: "variable", style: "variable-3"};
+      var tsKeywords = {
+        // object-like things
+        "interface": kw("class"),
+        "implements": C,
+        "namespace": C,
+        "module": kw("module"),
+        "enum": kw("module"),
+        "type": kw("type"),
+
+        // scope modifiers
+        "public": kw("modifier"),
+        "private": kw("modifier"),
+        "protected": kw("modifier"),
+        "abstract": kw("modifier"),
+
+        // operators
+        "as": operator,
+
+        // types
+        "string": type, "number": type, "boolean": type, "any": type
+      };
+
+      for (var attr in tsKeywords) {
+        jsKeywords[attr] = tsKeywords[attr];
+      }
+    }
+
+    return jsKeywords;
+  }();
+
+  var isOperatorChar = /[+\-*&%=<>!?|~^]/;
+  var isJsonldKeyword = /^@(context|id|value|language|type|container|list|set|reverse|index|base|vocab|graph)"/;
+
+  function readRegexp(stream) {
+    var escaped = false, next, inSet = false;
+    while ((next = stream.next()) != null) {
+      if (!escaped) {
+        if (next == "/" && !inSet) return;
+        if (next == "[") inSet = true;
+        else if (inSet && next == "]") inSet = false;
+      }
+      escaped = !escaped && next == "\\";
+    }
+  }
+
+  // Used as scratch variables to communicate multiple values without
+  // consing up tons of objects.
+  var type, content;
+  function ret(tp, style, cont) {
+    type = tp; content = cont;
+    return style;
+  }
+  function tokenBase(stream, state) {
+    var ch = stream.next();
+    if (ch == '"' || ch == "'") {
+      state.tokenize = tokenString(ch);
+      return state.tokenize(stream, state);
+    } else if (ch == "." && stream.match(/^\d+(?:[eE][+\-]?\d+)?/)) {
+      return ret("number", "number");
+    } else if (ch == "." && stream.match("..")) {
+      return ret("spread", "meta");
+    } else if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
+      return ret(ch);
+    } else if (ch == "=" && stream.eat(">")) {
+      return ret("=>", "operator");
+    } else if (ch == "0" && stream.eat(/x/i)) {
+      stream.eatWhile(/[\da-f]/i);
+      return ret("number", "number");
+    } else if (ch == "0" && stream.eat(/o/i)) {
+      stream.eatWhile(/[0-7]/i);
+      return ret("number", "number");
+    } else if (ch == "0" && stream.eat(/b/i)) {
+      stream.eatWhile(/[01]/i);
+      return ret("number", "number");
+    } else if (/\d/.test(ch)) {
+      stream.match(/^\d*(?:\.\d*)?(?:[eE][+\-]?\d+)?/);
+      return ret("number", "number");
+    } else if (ch == "/") {
+      if (stream.eat("*")) {
+        state.tokenize = tokenComment;
+        return tokenComment(stream, state);
+      } else if (stream.eat("/")) {
+        stream.skipToEnd();
+        return ret("comment", "comment");
+      } else if (expressionAllowed(stream, state, 1)) {
+        readRegexp(stream);
+        stream.match(/^\b(([gimyu])(?![gimyu]*\2))+\b/);
+        return ret("regexp", "string-2");
+      } else {
+        stream.eatWhile(isOperatorChar);
+        return ret("operator", "operator", stream.current());
+      }
+    } else if (ch == "`") {
+      state.tokenize = tokenQuasi;
+      return tokenQuasi(stream, state);
+    } else if (ch == "#") {
+      stream.skipToEnd();
+      return ret("error", "error");
+    } else if (isOperatorChar.test(ch)) {
+      if (ch != ">" || !state.lexical || state.lexical.type != ">")
+        stream.eatWhile(isOperatorChar);
+      return ret("operator", "operator", stream.current());
+    } else if (wordRE.test(ch)) {
+      stream.eatWhile(wordRE);
+      var word = stream.current(), known = keywords.propertyIsEnumerable(word) && keywords[word];
+      return (known && state.lastType != ".") ? ret(known.type, known.style, word) :
+                     ret("variable", "variable", word);
+    }
+  }
+
+  function tokenString(quote) {
+    return function(stream, state) {
+      var escaped = false, next;
+      if (jsonldMode && stream.peek() == "@" && stream.match(isJsonldKeyword)){
+        state.tokenize = tokenBase;
+        return ret("jsonld-keyword", "meta");
+      }
+      while ((next = stream.next()) != null) {
+        if (next == quote && !escaped) break;
+        escaped = !escaped && next == "\\";
+      }
+      if (!escaped) state.tokenize = tokenBase;
+      return ret("string", "string");
+    };
+  }
+
+  function tokenComment(stream, state) {
+    var maybeEnd = false, ch;
+    while (ch = stream.next()) {
+      if (ch == "/" && maybeEnd) {
+        state.tokenize = tokenBase;
+        break;
+      }
+      maybeEnd = (ch == "*");
+    }
+    return ret("comment", "comment");
+  }
+
+  function tokenQuasi(stream, state) {
+    var escaped = false, next;
+    while ((next = stream.next()) != null) {
+      if (!escaped && (next == "`" || next == "$" && stream.eat("{"))) {
+        state.tokenize = tokenBase;
+        break;
+      }
+      escaped = !escaped && next == "\\";
+    }
+    return ret("quasi", "string-2", stream.current());
+  }
+
+  var brackets = "([{}])";
+  // This is a crude lookahead trick to try and notice that we're
+  // parsing the argument patterns for a fat-arrow function before we
+  // actually hit the arrow token. It only works if the arrow is on
+  // the same line as the arguments and there's no strange noise
+  // (comments) in between. Fallback is to only notice when we hit the
+  // arrow, and not declare the arguments as locals for the arrow
+  // body.
+  function findFatArrow(stream, state) {
+    if (state.fatArrowAt) state.fatArrowAt = null;
+    var arrow = stream.string.indexOf("=>", stream.start);
+    if (arrow < 0) return;
+
+    if (isTS) { // Try to skip TypeScript return type declarations after the arguments
+      var m = /:\s*(?:\w+(?:<[^>]*>|\[\])?|\{[^}]*\})\s*$/.exec(stream.string.slice(stream.start, arrow))
+      if (m) arrow = m.index
+    }
+
+    var depth = 0, sawSomething = false;
+    for (var pos = arrow - 1; pos >= 0; --pos) {
+      var ch = stream.string.charAt(pos);
+      var bracket = brackets.indexOf(ch);
+      if (bracket >= 0 && bracket < 3) {
+        if (!depth) { ++pos; break; }
+        if (--depth == 0) { if (ch == "(") sawSomething = true; break; }
+      } else if (bracket >= 3 && bracket < 6) {
+        ++depth;
+      } else if (wordRE.test(ch)) {
+        sawSomething = true;
+      } else if (/["'\/]/.test(ch)) {
+        return;
+      } else if (sawSomething && !depth) {
+        ++pos;
+        break;
+      }
+    }
+    if (sawSomething && !depth) state.fatArrowAt = pos;
+  }
+
+  // Parser
+
+  var atomicTypes = {"atom": true, "number": true, "variable": true, "string": true, "regexp": true, "this": true, "jsonld-keyword": true};
+
+  function JSLexical(indented, column, type, align, prev, info) {
+    this.indented = indented;
+    this.column = column;
+    this.type = type;
+    this.prev = prev;
+    this.info = info;
+    if (align != null) this.align = align;
+  }
+
+  function inScope(state, varname) {
+    for (var v = state.localVars; v; v = v.next)
+      if (v.name == varname) return true;
+    for (var cx = state.context; cx; cx = cx.prev) {
+      for (var v = cx.vars; v; v = v.next)
+        if (v.name == varname) return true;
+    }
+  }
+
+  function parseJS(state, style, type, content, stream) {
+    var cc = state.cc;
+    // Communicate our context to the combinators.
+    // (Less wasteful than consing up a hundred closures on every call.)
+    cx.state = state; cx.stream = stream; cx.marked = null, cx.cc = cc; cx.style = style;
+
+    if (!state.lexical.hasOwnProperty("align"))
+      state.lexical.align = true;
+
+    while(true) {
+      var combinator = cc.length ? cc.pop() : jsonMode ? expression : statement;
+      if (combinator(type, content)) {
+        while(cc.length && cc[cc.length - 1].lex)
+          cc.pop()();
+        if (cx.marked) return cx.marked;
+        if (type == "variable" && inScope(state, content)) return "variable-2";
+        return style;
+      }
+    }
+  }
+
+  // Combinator utils
+
+  var cx = {state: null, column: null, marked: null, cc: null};
+  function pass() {
+    for (var i = arguments.length - 1; i >= 0; i--) cx.cc.push(arguments[i]);
+  }
+  function cont() {
+    pass.apply(null, arguments);
+    return true;
+  }
+  function register(varname) {
+    function inList(list) {
+      for (var v = list; v; v = v.next)
+        if (v.name == varname) return true;
+      return false;
+    }
+    var state = cx.state;
+    cx.marked = "def";
+    if (state.context) {
+      if (inList(state.localVars)) return;
+      state.localVars = {name: varname, next: state.localVars};
+    } else {
+      if (inList(state.globalVars)) return;
+      if (parserConfig.globalVars)
+        state.globalVars = {name: varname, next: state.globalVars};
+    }
+  }
+
+  // Combinators
+
+  var defaultVars = {name: "this", next: {name: "arguments"}};
+  function pushcontext() {
+    cx.state.context = {prev: cx.state.context, vars: cx.state.localVars};
+    cx.state.localVars = defaultVars;
+  }
+  function popcontext() {
+    cx.state.localVars = cx.state.context.vars;
+    cx.state.context = cx.state.context.prev;
+  }
+  function pushlex(type, info) {
+    var result = function() {
+      var state = cx.state, indent = state.indented;
+      if (state.lexical.type == "stat") indent = state.lexical.indented;
+      else for (var outer = state.lexical; outer && outer.type == ")" && outer.align; outer = outer.prev)
+        indent = outer.indented;
+      state.lexical = new JSLexical(indent, cx.stream.column(), type, null, state.lexical, info);
+    };
+    result.lex = true;
+    return result;
+  }
+  function poplex() {
+    var state = cx.state;
+    if (state.lexical.prev) {
+      if (state.lexical.type == ")")
+        state.indented = state.lexical.indented;
+      state.lexical = state.lexical.prev;
+    }
+  }
+  poplex.lex = true;
+
+  function expect(wanted) {
+    function exp(type) {
+      if (type == wanted) return cont();
+      else if (wanted == ";") return pass();
+      else return cont(exp);
+    };
+    return exp;
+  }
+
+  function statement(type, value) {
+    if (type == "var") return cont(pushlex("vardef", value.length), vardef, expect(";"), poplex);
+    if (type == "keyword a") return cont(pushlex("form"), parenExpr, statement, poplex);
+    if (type == "keyword b") return cont(pushlex("form"), statement, poplex);
+    if (type == "{") return cont(pushlex("}"), block, poplex);
+    if (type == ";") return cont();
+    if (type == "if") {
+      if (cx.state.lexical.info == "else" && cx.state.cc[cx.state.cc.length - 1] == poplex)
+        cx.state.cc.pop()();
+      return cont(pushlex("form"), parenExpr, statement, poplex, maybeelse);
+    }
+    if (type == "function") return cont(functiondef);
+    if (type == "for") return cont(pushlex("form"), forspec, statement, poplex);
+    if (type == "variable") return cont(pushlex("stat"), maybelabel);
+    if (type == "switch") return cont(pushlex("form"), parenExpr, pushlex("}", "switch"), expect("{"),
+                                      block, poplex, poplex);
+    if (type == "case") return cont(expression, expect(":"));
+    if (type == "default") return cont(expect(":"));
+    if (type == "catch") return cont(pushlex("form"), pushcontext, expect("("), funarg, expect(")"),
+                                     statement, poplex, popcontext);
+    if (type == "class") return cont(pushlex("form"), className, poplex);
+    if (type == "export") return cont(pushlex("stat"), afterExport, poplex);
+    if (type == "import") return cont(pushlex("stat"), afterImport, poplex);
+    if (type == "module") return cont(pushlex("form"), pattern, pushlex("}"), expect("{"), block, poplex, poplex)
+    if (type == "type") return cont(typeexpr, expect("operator"), typeexpr, expect(";"));
+    if (type == "async") return cont(statement)
+    return pass(pushlex("stat"), expression, expect(";"), poplex);
+  }
+  function expression(type) {
+    return expressionInner(type, false);
+  }
+  function expressionNoComma(type) {
+    return expressionInner(type, true);
+  }
+  function parenExpr(type) {
+    if (type != "(") return pass()
+    return cont(pushlex(")"), expression, expect(")"), poplex)
+  }
+  function expressionInner(type, noComma) {
+    if (cx.state.fatArrowAt == cx.stream.start) {
+      var body = noComma ? arrowBodyNoComma : arrowBody;
+      if (type == "(") return cont(pushcontext, pushlex(")"), commasep(pattern, ")"), poplex, expect("=>"), body, popcontext);
+      else if (type == "variable") return pass(pushcontext, pattern, expect("=>"), body, popcontext);
+    }
+
+    var maybeop = noComma ? maybeoperatorNoComma : maybeoperatorComma;
+    if (atomicTypes.hasOwnProperty(type)) return cont(maybeop);
+    if (type == "function") return cont(functiondef, maybeop);
+    if (type == "class") return cont(pushlex("form"), classExpression, poplex);
+    if (type == "keyword c" || type == "async") return cont(noComma ? maybeexpressionNoComma : maybeexpression);
+    if (type == "(") return cont(pushlex(")"), maybeexpression, expect(")"), poplex, maybeop);
+    if (type == "operator" || type == "spread") return cont(noComma ? expressionNoComma : expression);
+    if (type == "[") return cont(pushlex("]"), arrayLiteral, poplex, maybeop);
+    if (type == "{") return contCommasep(objprop, "}", null, maybeop);
+    if (type == "quasi") return pass(quasi, maybeop);
+    if (type == "new") return cont(maybeTarget(noComma));
+    return cont();
+  }
+  function maybeexpression(type) {
+    if (type.match(/[;\}\)\],]/)) return pass();
+    return pass(expression);
+  }
+  function maybeexpressionNoComma(type) {
+    if (type.match(/[;\}\)\],]/)) return pass();
+    return pass(expressionNoComma);
+  }
+
+  function maybeoperatorComma(type, value) {
+    if (type == ",") return cont(expression);
+    return maybeoperatorNoComma(type, value, false);
+  }
+  function maybeoperatorNoComma(type, value, noComma) {
+    var me = noComma == false ? maybeoperatorComma : maybeoperatorNoComma;
+    var expr = noComma == false ? expression : expressionNoComma;
+    if (type == "=>") return cont(pushcontext, noComma ? arrowBodyNoComma : arrowBody, popcontext);
+    if (type == "operator") {
+      if (/\+\+|--/.test(value)) return cont(me);
+      if (value == "?") return cont(expression, expect(":"), expr);
+      return cont(expr);
+    }
+    if (type == "quasi") { return pass(quasi, me); }
+    if (type == ";") return;
+    if (type == "(") return contCommasep(expressionNoComma, ")", "call", me);
+    if (type == ".") return cont(property, me);
+    if (type == "[") return cont(pushlex("]"), maybeexpression, expect("]"), poplex, me);
+  }
+  function quasi(type, value) {
+    if (type != "quasi") return pass();
+    if (value.slice(value.length - 2) != "${") return cont(quasi);
+    return cont(expression, continueQuasi);
+  }
+  function continueQuasi(type) {
+    if (type == "}") {
+      cx.marked = "string-2";
+      cx.state.tokenize = tokenQuasi;
+      return cont(quasi);
+    }
+  }
+  function arrowBody(type) {
+    findFatArrow(cx.stream, cx.state);
+    return pass(type == "{" ? statement : expression);
+  }
+  function arrowBodyNoComma(type) {
+    findFatArrow(cx.stream, cx.state);
+    return pass(type == "{" ? statement : expressionNoComma);
+  }
+  function maybeTarget(noComma) {
+    return function(type) {
+      if (type == ".") return cont(noComma ? targetNoComma : target);
+      else return pass(noComma ? expressionNoComma : expression);
+    };
+  }
+  function target(_, value) {
+    if (value == "target") { cx.marked = "keyword"; return cont(maybeoperatorComma); }
+  }
+  function targetNoComma(_, value) {
+    if (value == "target") { cx.marked = "keyword"; return cont(maybeoperatorNoComma); }
+  }
+  function maybelabel(type) {
+    if (type == ":") return cont(poplex, statement);
+    return pass(maybeoperatorComma, expect(";"), poplex);
+  }
+  function property(type) {
+    if (type == "variable") {cx.marked = "property"; return cont();}
+  }
+  function objprop(type, value) {
+    if (type == "async") {
+      cx.marked = "property";
+      return cont(objprop);
+    } else if (type == "variable" || cx.style == "keyword") {
+      cx.marked = "property";
+      if (value == "get" || value == "set") return cont(getterSetter);
+      return cont(afterprop);
+    } else if (type == "number" || type == "string") {
+      cx.marked = jsonldMode ? "property" : (cx.style + " property");
+      return cont(afterprop);
+    } else if (type == "jsonld-keyword") {
+      return cont(afterprop);
+    } else if (type == "modifier") {
+      return cont(objprop)
+    } else if (type == "[") {
+      return cont(expression, expect("]"), afterprop);
+    } else if (type == "spread") {
+      return cont(expression);
+    } else if (type == ":") {
+      return pass(afterprop)
+    }
+  }
+  function getterSetter(type) {
+    if (type != "variable") return pass(afterprop);
+    cx.marked = "property";
+    return cont(functiondef);
+  }
+  function afterprop(type) {
+    if (type == ":") return cont(expressionNoComma);
+    if (type == "(") return pass(functiondef);
+  }
+  function commasep(what, end, sep) {
+    function proceed(type, value) {
+      if (sep ? sep.indexOf(type) > -1 : type == ",") {
+        var lex = cx.state.lexical;
+        if (lex.info == "call") lex.pos = (lex.pos || 0) + 1;
+        return cont(function(type, value) {
+          if (type == end || value == end) return pass()
+          return pass(what)
+        }, proceed);
+      }
+      if (type == end || value == end) return cont();
+      return cont(expect(end));
+    }
+    return function(type, value) {
+      if (type == end || value == end) return cont();
+      return pass(what, proceed);
+    };
+  }
+  function contCommasep(what, end, info) {
+    for (var i = 3; i < arguments.length; i++)
+      cx.cc.push(arguments[i]);
+    return cont(pushlex(end, info), commasep(what, end), poplex);
+  }
+  function block(type) {
+    if (type == "}") return cont();
+    return pass(statement, block);
+  }
+  function maybetype(type, value) {
+    if (isTS) {
+      if (type == ":") return cont(typeexpr);
+      if (value == "?") return cont(maybetype);
+    }
+  }
+  function typeexpr(type) {
+    if (type == "variable") {cx.marked = "variable-3"; return cont(afterType);}
+    if (type == "string" || type == "number" || type == "atom") return cont(afterType);
+    if (type == "{") return cont(pushlex("}"), commasep(typeprop, "}", ",;"), poplex)
+    if (type == "(") return cont(commasep(typearg, ")"), maybeReturnType)
+  }
+  function maybeReturnType(type) {
+    if (type == "=>") return cont(typeexpr)
+  }
+  function typeprop(type, value) {
+    if (type == "variable" || cx.style == "keyword") {
+      cx.marked = "property"
+      return cont(typeprop)
+    } else if (value == "?") {
+      return cont(typeprop)
+    } else if (type == ":") {
+      return cont(typeexpr)
+    }
+  }
+  function typearg(type) {
+    if (type == "variable") return cont(typearg)
+    else if (type == ":") return cont(typeexpr)
+  }
+  function afterType(type, value) {
+    if (value == "<") return cont(pushlex(">"), commasep(typeexpr, ">"), poplex, afterType)
+    if (value == "|" || type == ".") return cont(typeexpr)
+    if (type == "[") return cont(expect("]"), afterType)
+  }
+  function vardef() {
+    return pass(pattern, maybetype, maybeAssign, vardefCont);
+  }
+  function pattern(type, value) {
+    if (type == "modifier") return cont(pattern)
+    if (type == "variable") { register(value); return cont(); }
+    if (type == "spread") return cont(pattern);
+    if (type == "[") return contCommasep(pattern, "]");
+    if (type == "{") return contCommasep(proppattern, "}");
+  }
+  function proppattern(type, value) {
+    if (type == "variable" && !cx.stream.match(/^\s*:/, false)) {
+      register(value);
+      return cont(maybeAssign);
+    }
+    if (type == "variable") cx.marked = "property";
+    if (type == "spread") return cont(pattern);
+    if (type == "}") return pass();
+    return cont(expect(":"), pattern, maybeAssign);
+  }
+  function maybeAssign(_type, value) {
+    if (value == "=") return cont(expressionNoComma);
+  }
+  function vardefCont(type) {
+    if (type == ",") return cont(vardef);
+  }
+  function maybeelse(type, value) {
+    if (type == "keyword b" && value == "else") return cont(pushlex("form", "else"), statement, poplex);
+  }
+  function forspec(type) {
+    if (type == "(") return cont(pushlex(")"), forspec1, expect(")"), poplex);
+  }
+  function forspec1(type) {
+    if (type == "var") return cont(vardef, expect(";"), forspec2);
+    if (type == ";") return cont(forspec2);
+    if (type == "variable") return cont(formaybeinof);
+    return pass(expression, expect(";"), forspec2);
+  }
+  function formaybeinof(_type, value) {
+    if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression); }
+    return cont(maybeoperatorComma, forspec2);
+  }
+  function forspec2(type, value) {
+    if (type == ";") return cont(forspec3);
+    if (value == "in" || value == "of") { cx.marked = "keyword"; return cont(expression); }
+    return pass(expression, expect(";"), forspec3);
+  }
+  function forspec3(type) {
+    if (type != ")") cont(expression);
+  }
+  function functiondef(type, value) {
+    if (value == "*") {cx.marked = "keyword"; return cont(functiondef);}
+    if (type == "variable") {register(value); return cont(functiondef);}
+    if (type == "(") return cont(pushcontext, pushlex(")"), commasep(funarg, ")"), poplex, maybetype, statement, popcontext);
+  }
+  function funarg(type) {
+    if (type == "spread") return cont(funarg);
+    return pass(pattern, maybetype, maybeAssign);
+  }
+  function classExpression(type, value) {
+    // Class expressions may have an optional name.
+    if (type == "variable") return className(type, value);
+    return classNameAfter(type, value);
+  }
+  function className(type, value) {
+    if (type == "variable") {register(value); return cont(classNameAfter);}
+  }
+  function classNameAfter(type, value) {
+    if (value == "<") return cont(pushlex(">"), commasep(typeexpr, ">"), poplex, classNameAfter)
+    if (value == "extends" || value == "implements" || (isTS && type == ","))
+      return cont(isTS ? typeexpr : expression, classNameAfter);
+    if (type == "{") return cont(pushlex("}"), classBody, poplex);
+  }
+  function classBody(type, value) {
+    if (type == "variable" || cx.style == "keyword") {
+      if ((value == "async" || value == "static" || value == "get" || value == "set" ||
+           (isTS && (value == "public" || value == "private" || value == "protected" || value == "readonly" || value == "abstract"))) &&
+          cx.stream.match(/^\s+[\w$\xa1-\uffff]/, false)) {
+        cx.marked = "keyword";
+        return cont(classBody);
+      }
+      cx.marked = "property";
+      return cont(isTS ? classfield : functiondef, classBody);
+    }
+    if (type == "[")
+      return cont(expression, expect("]"), isTS ? classfield : functiondef, classBody)
+    if (value == "*") {
+      cx.marked = "keyword";
+      return cont(classBody);
+    }
+    if (type == ";") return cont(classBody);
+    if (type == "}") return cont();
+  }
+  function classfield(type, value) {
+    if (value == "?") return cont(classfield)
+    if (type == ":") return cont(typeexpr, maybeAssign)
+    if (value == "=") return cont(expressionNoComma)
+    return pass(functiondef)
+  }
+  function afterExport(type, value) {
+    if (value == "*") { cx.marked = "keyword"; return cont(maybeFrom, expect(";")); }
+    if (value == "default") { cx.marked = "keyword"; return cont(expression, expect(";")); }
+    if (type == "{") return cont(commasep(exportField, "}"), maybeFrom, expect(";"));
+    return pass(statement);
+  }
+  function exportField(type, value) {
+    if (value == "as") { cx.marked = "keyword"; return cont(expect("variable")); }
+    if (type == "variable") return pass(expressionNoComma, exportField);
+  }
+  function afterImport(type) {
+    if (type == "string") return cont();
+    return pass(importSpec, maybeMoreImports, maybeFrom);
+  }
+  function importSpec(type, value) {
+    if (type == "{") return contCommasep(importSpec, "}");
+    if (type == "variable") register(value);
+    if (value == "*") cx.marked = "keyword";
+    return cont(maybeAs);
+  }
+  function maybeMoreImports(type) {
+    if (type == ",") return cont(importSpec, maybeMoreImports)
+  }
+  function maybeAs(_type, value) {
+    if (value == "as") { cx.marked = "keyword"; return cont(importSpec); }
+  }
+  function maybeFrom(_type, value) {
+    if (value == "from") { cx.marked = "keyword"; return cont(expression); }
+  }
+  function arrayLiteral(type) {
+    if (type == "]") return cont();
+    return pass(commasep(expressionNoComma, "]"));
+  }
+
+  function isContinuedStatement(state, textAfter) {
+    return state.lastType == "operator" || state.lastType == "," ||
+      isOperatorChar.test(textAfter.charAt(0)) ||
+      /[,.]/.test(textAfter.charAt(0));
+  }
+
+  // Interface
+
+  return {
+    startState: function(basecolumn) {
+      var state = {
+        tokenize: tokenBase,
+        lastType: "sof",
+        cc: [],
+        lexical: new JSLexical((basecolumn || 0) - indentUnit, 0, "block", false),
+        localVars: parserConfig.localVars,
+        context: parserConfig.localVars && {vars: parserConfig.localVars},
+        indented: basecolumn || 0
+      };
+      if (parserConfig.globalVars && typeof parserConfig.globalVars == "object")
+        state.globalVars = parserConfig.globalVars;
+      return state;
+    },
+
+    token: function(stream, state) {
+      if (stream.sol()) {
+        if (!state.lexical.hasOwnProperty("align"))
+          state.lexical.align = false;
+        state.indented = stream.indentation();
+        findFatArrow(stream, state);
+      }
+      if (state.tokenize != tokenComment && stream.eatSpace()) return null;
+      var style = state.tokenize(stream, state);
+      if (type == "comment") return style;
+      state.lastType = type == "operator" && (content == "++" || content == "--") ? "incdec" : type;
+      return parseJS(state, style, type, content, stream);
+    },
+
+    indent: function(state, textAfter) {
+      if (state.tokenize == tokenComment) return CodeMirror.Pass;
+      if (state.tokenize != tokenBase) return 0;
+      var firstChar = textAfter && textAfter.charAt(0), lexical = state.lexical, top
+      // Kludge to prevent 'maybelse' from blocking lexical scope pops
+      if (!/^\s*else\b/.test(textAfter)) for (var i = state.cc.length - 1; i >= 0; --i) {
+        var c = state.cc[i];
+        if (c == poplex) lexical = lexical.prev;
+        else if (c != maybeelse) break;
+      }
+      while ((lexical.type == "stat" || lexical.type == "form") &&
+             (firstChar == "}" || ((top = state.cc[state.cc.length - 1]) &&
+                                   (top == maybeoperatorComma || top == maybeoperatorNoComma) &&
+                                   !/^[,\.=+\-*:?[\(]/.test(textAfter))))
+        lexical = lexical.prev;
+      if (statementIndent && lexical.type == ")" && lexical.prev.type == "stat")
+        lexical = lexical.prev;
+      var type = lexical.type, closing = firstChar == type;
+
+      if (type == "vardef") return lexical.indented + (state.lastType == "operator" || state.lastType == "," ? lexical.info + 1 : 0);
+      else if (type == "form" && firstChar == "{") return lexical.indented;
+      else if (type == "form") return lexical.indented + indentUnit;
+      else if (type == "stat")
+        return lexical.indented + (isContinuedStatement(state, textAfter) ? statementIndent || indentUnit : 0);
+      else if (lexical.info == "switch" && !closing && parserConfig.doubleIndentSwitch != false)
+        return lexical.indented + (/^(?:case|default)\b/.test(textAfter) ? indentUnit : 2 * indentUnit);
+      else if (lexical.align) return lexical.column + (closing ? 0 : 1);
+      else return lexical.indented + (closing ? 0 : indentUnit);
+    },
+
+    electricInput: /^\s*(?:case .*?:|default:|\{|\})$/,
+    blockCommentStart: jsonMode ? null : "/*",
+    blockCommentEnd: jsonMode ? null : "*/",
+    lineComment: jsonMode ? null : "//",
+    fold: "brace",
+    closeBrackets: "()[]{}''\"\"``",
+
+    helperType: jsonMode ? "json" : "javascript",
+    jsonldMode: jsonldMode,
+    jsonMode: jsonMode,
+
+    expressionAllowed: expressionAllowed,
+    skipExpression: function(state) {
+      var top = state.cc[state.cc.length - 1]
+      if (top == expression || top == expressionNoComma) state.cc.pop()
+    }
+  };
+});
+
+CodeMirror.registerHelper("wordChars", "javascript", /[\w$]/);
+
+CodeMirror.defineMIME("text/javascript", "javascript");
+CodeMirror.defineMIME("text/ecmascript", "javascript");
+CodeMirror.defineMIME("application/javascript", "javascript");
+CodeMirror.defineMIME("application/x-javascript", "javascript");
+CodeMirror.defineMIME("application/ecmascript", "javascript");
+CodeMirror.defineMIME("application/json", {name: "javascript", json: true});
+CodeMirror.defineMIME("application/x-json", {name: "javascript", json: true});
+CodeMirror.defineMIME("application/ld+json", {name: "javascript", jsonld: true});
+CodeMirror.defineMIME("text/typescript", { name: "javascript", typescript: true });
+CodeMirror.defineMIME("application/typescript", { name: "javascript", typescript: true });
+
+});
diff --git a/public/codemirror/mode/javascript/json-ld.html b/public/codemirror/mode/javascript/json-ld.html
new file mode 100644
index 000000000..3a37f0bce
--- /dev/null
+++ b/public/codemirror/mode/javascript/json-ld.html
@@ -0,0 +1,72 @@
+
+
+CodeMirror: JSON-LD mode
+
+
+
+
+
+
+
+
+
+
+
+
+

+
JSON-LD mode

+
+
+

+
+    
+    
+    
This is a specialization of the JavaScript mode.

+  

diff --git a/public/codemirror/mode/javascript/test.js b/public/codemirror/mode/javascript/test.js
new file mode 100644
index 000000000..9abbf365c
--- /dev/null
+++ b/public/codemirror/mode/javascript/test.js
@@ -0,0 +1,335 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({indentUnit: 2}, "javascript");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)); }
+
+  MT("locals",
+     "[keyword function] [def foo]([def a], [def b]) { [keyword var] [def c] [operator =] [number 10]; [keyword return] [variable-2 a] [operator +] [variable-2 c] [operator +] [variable d]; }");
+
+  MT("comma-and-binop",
+     "[keyword function](){ [keyword var] [def x] [operator =] [number 1] [operator +] [number 2], [def y]; }");
+
+  MT("destructuring",
+     "([keyword function]([def a], [[[def b], [def c] ]]) {",
+     "  [keyword let] {[def d], [property foo]: [def c][operator =][number 10], [def x]} [operator =] [variable foo]([variable-2 a]);",
+     "  [[[variable-2 c], [variable y] ]] [operator =] [variable-2 c];",
+     "})();");
+
+  MT("destructure_trailing_comma",
+    "[keyword let] {[def a], [def b],} [operator =] [variable foo];",
+    "[keyword let] [def c];"); // Parser still in good state?
+
+  MT("class_body",
+     "[keyword class] [def Foo] {",
+     "  [property constructor]() {}",
+     "  [property sayName]() {",
+     "    [keyword return] [string-2 `foo${][variable foo][string-2 }oo`];",
+     "  }",
+     "}");
+
+  MT("class",
+     "[keyword class] [def Point] [keyword extends] [variable SuperThing] {",
+     "  [keyword get] [property prop]() { [keyword return] [number 24]; }",
+     "  [property constructor]([def x], [def y]) {",
+     "    [keyword super]([string 'something']);",
+     "    [keyword this].[property x] [operator =] [variable-2 x];",
+     "  }",
+     "}");
+
+  MT("anonymous_class_expression",
+     "[keyword const] [def Adder] [operator =] [keyword class] [keyword extends] [variable Arithmetic] {",
+     "  [property add]([def a], [def b]) {}",
+     "};");
+
+  MT("named_class_expression",
+     "[keyword const] [def Subber] [operator =] [keyword class] [def Subtract] {",
+     "  [property sub]([def a], [def b]) {}",
+     "};");
+
+  MT("class_async_method",
+     "[keyword class] [def Foo] {",
+     "  [property sayName1]() {}",
+     "  [keyword async] [property sayName2]() {}",
+     "}");
+
+  MT("import",
+     "[keyword function] [def foo]() {",
+     "  [keyword import] [def $] [keyword from] [string 'jquery'];",
+     "  [keyword import] { [def encrypt], [def decrypt] } [keyword from] [string 'crypto'];",
+     "}");
+
+  MT("import_trailing_comma",
+     "[keyword import] {[def foo], [def bar],} [keyword from] [string 'baz']")
+
+  MT("const",
+     "[keyword function] [def f]() {",
+     "  [keyword const] [[ [def a], [def b] ]] [operator =] [[ [number 1], [number 2] ]];",
+     "}");
+
+  MT("for/of",
+     "[keyword for]([keyword let] [def of] [keyword of] [variable something]) {}");
+
+  MT("generator",
+     "[keyword function*] [def repeat]([def n]) {",
+     "  [keyword for]([keyword var] [def i] [operator =] [number 0]; [variable-2 i] [operator <] [variable-2 n]; [operator ++][variable-2 i])",
+     "    [keyword yield] [variable-2 i];",
+     "}");
+
+  MT("quotedStringAddition",
+     "[keyword let] [def f] [operator =] [variable a] [operator +] [string 'fatarrow'] [operator +] [variable c];");
+
+  MT("quotedFatArrow",
+     "[keyword let] [def f] [operator =] [variable a] [operator +] [string '=>'] [operator +] [variable c];");
+
+  MT("fatArrow",
+     "[variable array].[property filter]([def a] [operator =>] [variable-2 a] [operator +] [number 1]);",
+     "[variable a];", // No longer in scope
+     "[keyword let] [def f] [operator =] ([[ [def a], [def b] ]], [def c]) [operator =>] [variable-2 a] [operator +] [variable-2 c];",
+     "[variable c];");
+
+  MT("spread",
+     "[keyword function] [def f]([def a], [meta ...][def b]) {",
+     "  [variable something]([variable-2 a], [meta ...][variable-2 b]);",
+     "}");
+
+  MT("quasi",
+     "[variable re][string-2 `fofdlakj${][variable x] [operator +] ([variable re][string-2 `foo`]) [operator +] [number 1][string-2 }fdsa`] [operator +] [number 2]");
+
+  MT("quasi_no_function",
+     "[variable x] [operator =] [string-2 `fofdlakj${][variable x] [operator +] [string-2 `foo`] [operator +] [number 1][string-2 }fdsa`] [operator +] [number 2]");
+
+  MT("indent_statement",
+     "[keyword var] [def x] [operator =] [number 10]",
+     "[variable x] [operator +=] [variable y] [operator +]",
+     "  [atom Infinity]",
+     "[keyword debugger];");
+
+  MT("indent_if",
+     "[keyword if] ([number 1])",
+     "  [keyword break];",
+     "[keyword else] [keyword if] ([number 2])",
+     "  [keyword continue];",
+     "[keyword else]",
+     "  [number 10];",
+     "[keyword if] ([number 1]) {",
+     "  [keyword break];",
+     "} [keyword else] [keyword if] ([number 2]) {",
+     "  [keyword continue];",
+     "} [keyword else] {",
+     "  [number 10];",
+     "}");
+
+  MT("indent_for",
+     "[keyword for] ([keyword var] [def i] [operator =] [number 0];",
+     "     [variable i] [operator <] [number 100];",
+     "     [variable i][operator ++])",
+     "  [variable doSomething]([variable i]);",
+     "[keyword debugger];");
+
+  MT("indent_c_style",
+     "[keyword function] [def foo]()",
+     "{",
+     "  [keyword debugger];",
+     "}");
+
+  MT("indent_else",
+     "[keyword for] (;;)",
+     "  [keyword if] ([variable foo])",
+     "    [keyword if] ([variable bar])",
+     "      [number 1];",
+     "    [keyword else]",
+     "      [number 2];",
+     "  [keyword else]",
+     "    [number 3];");
+
+  MT("indent_funarg",
+     "[variable foo]([number 10000],",
+     "    [keyword function]([def a]) {",
+     "  [keyword debugger];",
+     "};");
+
+  MT("indent_below_if",
+     "[keyword for] (;;)",
+     "  [keyword if] ([variable foo])",
+     "    [number 1];",
+     "[number 2];");
+
+  MT("indent_semicolonless_if",
+     "[keyword function] [def foo]() {",
+     "  [keyword if] ([variable x])",
+     "    [variable foo]()",
+     "}")
+
+  MT("indent_semicolonless_if_with_statement",
+     "[keyword function] [def foo]() {",
+     "  [keyword if] ([variable x])",
+     "    [variable foo]()",
+     "  [variable bar]()",
+     "}")
+
+  MT("multilinestring",
+     "[keyword var] [def x] [operator =] [string 'foo\\]",
+     "[string bar'];");
+
+  MT("scary_regexp",
+     "[string-2 /foo[[/]]bar/];");
+
+  MT("indent_strange_array",
+     "[keyword var] [def x] [operator =] [[",
+     "  [number 1],,",
+     "  [number 2],",
+     "]];",
+     "[number 10];");
+
+  MT("param_default",
+     "[keyword function] [def foo]([def x] [operator =] [string-2 `foo${][number 10][string-2 }bar`]) {",
+     "  [keyword return] [variable-2 x];",
+     "}");
+
+  MT("new_target",
+     "[keyword function] [def F]([def target]) {",
+     "  [keyword if] ([variable-2 target] [operator &&] [keyword new].[keyword target].[property name]) {",
+     "    [keyword return] [keyword new]",
+     "      .[keyword target];",
+     "  }",
+     "}");
+
+  MT("async",
+     "[keyword async] [keyword function] [def foo]([def args]) { [keyword return] [atom true]; }");
+
+  MT("async_assignment",
+     "[keyword const] [def foo] [operator =] [keyword async] [keyword function] ([def args]) { [keyword return] [atom true]; };");
+
+  MT("async_object",
+     "[keyword let] [def obj] [operator =] { [property async]: [atom false] };");
+
+  // async be highlighet as keyword and foo as def, but it requires potentially expensive look-ahead. See #4173
+  MT("async_object_function",
+     "[keyword let] [def obj] [operator =] { [property async] [property foo]([def args]) { [keyword return] [atom true]; } };");
+
+  MT("async_object_properties",
+     "[keyword let] [def obj] [operator =] {",
+     "  [property prop1]: [keyword async] [keyword function] ([def args]) { [keyword return] [atom true]; },",
+     "  [property prop2]: [keyword async] [keyword function] ([def args]) { [keyword return] [atom true]; },",
+     "  [property prop3]: [keyword async] [keyword function] [def prop3]([def args]) { [keyword return] [atom true]; },",
+     "};");
+
+  MT("async_arrow",
+     "[keyword const] [def foo] [operator =] [keyword async] ([def args]) [operator =>] { [keyword return] [atom true]; };");
+
+  MT("async_jquery",
+     "[variable $].[property ajax]({",
+     "  [property url]: [variable url],",
+     "  [property async]: [atom true],",
+     "  [property method]: [string 'GET']",
+     "});");
+
+  var ts_mode = CodeMirror.getMode({indentUnit: 2}, "application/typescript")
+  function TS(name) {
+    test.mode(name, ts_mode, Array.prototype.slice.call(arguments, 1))
+  }
+
+  TS("extend_type",
+     "[keyword class] [def Foo] [keyword extends] [variable-3 Some][operator <][variable-3 Type][operator >] {}")
+
+  TS("arrow_type",
+     "[keyword let] [def x]: ([variable arg]: [variable-3 Type]) [operator =>] [variable-3 ReturnType]")
+
+  TS("typescript_class",
+     "[keyword class] [def Foo] {",
+     "  [keyword public] [keyword static] [property main]() {}",
+     "  [keyword private] [property _foo]: [variable-3 string];",
+     "}")
+
+  TS("typescript_literal_types",
+     "[keyword import] [keyword *] [keyword as] [def Sequelize] [keyword from] [string 'sequelize'];",
+     "[keyword interface] [def MyAttributes] {",
+     "  [property truthy]: [string 'true'] [operator |] [number 1] [operator |] [atom true];",
+     "  [property falsy]: [string 'false'] [operator |] [number 0] [operator |] [atom false];",
+     "}",
+     "[keyword interface] [def MyInstance] [keyword extends] [variable-3 Sequelize].[variable-3 Instance] [operator <] [variable-3 MyAttributes] [operator >] {",
+     "  [property rawAttributes]: [variable-3 MyAttributes];",
+     "  [property truthy]: [string 'true'] [operator |] [number 1] [operator |] [atom true];",
+     "  [property falsy]: [string 'false'] [operator |] [number 0] [operator |] [atom false];",
+     "}")
+
+  TS("typescript_extend_operators",
+     "[keyword export] [keyword interface] [def UserModel] [keyword extends]",
+     "  [variable-3 Sequelize].[variable-3 Model] [operator <] [variable-3 UserInstance], [variable-3 UserAttributes] [operator >] {",
+     "    [property findById]: (",
+     "    [variable userId]: [variable-3 number]",
+     "    ) [operator =>] [variable-3 Promise] [operator <] [variable-3 Array] [operator <] { [property id], [property name] } [operator >>];",
+     "    [property updateById]: (",
+     "    [variable userId]: [variable-3 number],",
+     "    [variable isActive]: [variable-3 boolean]",
+     "    ) [operator =>] [variable-3 Promise] [operator <] [variable-3 AccountHolderNotificationPreferenceInstance] [operator >];",
+     "  }")
+
+  TS("typescript_interface_with_const",
+     "[keyword const] [def hello]: {",
+     "  [property prop1][operator ?]: [variable-3 string];",
+     "  [property prop2][operator ?]: [variable-3 string];",
+     "} [operator =] {};")
+
+  TS("typescript_double_extend",
+     "[keyword export] [keyword interface] [def UserAttributes] {",
+     "  [property id][operator ?]: [variable-3 number];",
+     "  [property createdAt][operator ?]: [variable-3 Date];",
+     "}",
+     "[keyword export] [keyword interface] [def UserInstance] [keyword extends] [variable-3 Sequelize].[variable-3 Instance][operator <][variable-3 UserAttributes][operator >], [variable-3 UserAttributes] {",
+     "  [property id]: [variable-3 number];",
+     "  [property createdAt]: [variable-3 Date];",
+     "}");
+
+  TS("typescript_index_signature",
+     "[keyword interface] [def A] {",
+     "  [[ [variable prop]: [variable-3 string] ]]: [variable-3 any];",
+     "  [property prop1]: [variable-3 any];",
+     "}");
+
+  TS("generic_class",
+     "[keyword class] [def Foo][operator <][variable-3 T][operator >] {",
+     "  [property bar]() {}",
+     "  [property foo](): [variable-3 Foo] {}",
+     "}")
+
+  var jsonld_mode = CodeMirror.getMode(
+    {indentUnit: 2},
+    {name: "javascript", jsonld: true}
+  );
+  function LD(name) {
+    test.mode(name, jsonld_mode, Array.prototype.slice.call(arguments, 1));
+  }
+
+  LD("json_ld_keywords",
+    '{',
+    '  [meta "@context"]: {',
+    '    [meta "@base"]: [string "http://example.com"],',
+    '    [meta "@vocab"]: [string "http://xmlns.com/foaf/0.1/"],',
+    '    [property "likesFlavor"]: {',
+    '      [meta "@container"]: [meta "@list"]',
+    '      [meta "@reverse"]: [string "@beFavoriteOf"]',
+    '    },',
+    '    [property "nick"]: { [meta "@container"]: [meta "@set"] },',
+    '    [property "nick"]: { [meta "@container"]: [meta "@index"] }',
+    '  },',
+    '  [meta "@graph"]: [[ {',
+    '    [meta "@id"]: [string "http://dbpedia.org/resource/John_Lennon"],',
+    '    [property "name"]: [string "John Lennon"],',
+    '    [property "modified"]: {',
+    '      [meta "@value"]: [string "2010-05-29T14:17:39+02:00"],',
+    '      [meta "@type"]: [string "http://www.w3.org/2001/XMLSchema#dateTime"]',
+    '    }',
+    '  } ]]',
+    '}');
+
+  LD("json_ld_fake",
+    '{',
+    '  [property "@fake"]: [string "@fake"],',
+    '  [property "@contextual"]: [string "@identifier"],',
+    '  [property "user@domain.com"]: [string "@graphical"],',
+    '  [property "@ID"]: [string "@@ID"]',
+    '}');
+})();
diff --git a/public/codemirror/mode/javascript/typescript.html b/public/codemirror/mode/javascript/typescript.html
new file mode 100644
index 000000000..1f26d7fe1
--- /dev/null
+++ b/public/codemirror/mode/javascript/typescript.html
@@ -0,0 +1,61 @@
+
+
+CodeMirror: TypeScript mode
+
+
+
+
+
+
+
+
+
+

+
TypeScript mode

+
+
+

+
+    
+
+    
This is a specialization of the JavaScript mode.

+  

diff --git a/public/codemirror/mode/jinja2/index.html b/public/codemirror/mode/jinja2/index.html
new file mode 100644
index 000000000..5a70e9153
--- /dev/null
+++ b/public/codemirror/mode/jinja2/index.html
@@ -0,0 +1,54 @@
+
+
+CodeMirror: Jinja2 mode
+
+
+
+
+
+
+
+
+
+

+
Jinja2 mode

+

+    
+  

diff --git a/public/codemirror/mode/jinja2/jinja2.js b/public/codemirror/mode/jinja2/jinja2.js
new file mode 100644
index 000000000..ed195581c
--- /dev/null
+++ b/public/codemirror/mode/jinja2/jinja2.js
@@ -0,0 +1,142 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineMode("jinja2", function() {
+    var keywords = ["and", "as", "block", "endblock", "by", "cycle", "debug", "else", "elif",
+      "extends", "filter", "endfilter", "firstof", "for",
+      "endfor", "if", "endif", "ifchanged", "endifchanged",
+      "ifequal", "endifequal", "ifnotequal",
+      "endifnotequal", "in", "include", "load", "not", "now", "or",
+      "parsed", "regroup", "reversed", "spaceless",
+      "endspaceless", "ssi", "templatetag", "openblock",
+      "closeblock", "openvariable", "closevariable",
+      "openbrace", "closebrace", "opencomment",
+      "closecomment", "widthratio", "url", "with", "endwith",
+      "get_current_language", "trans", "endtrans", "noop", "blocktrans",
+      "endblocktrans", "get_available_languages",
+      "get_current_language_bidi", "plural"],
+    operator = /^[+\-*&%=<>!?|~^]/,
+    sign = /^[:\[\(\{]/,
+    atom = ["true", "false"],
+    number = /^(\d[+\-\*\/])?\d+(\.\d+)?/;
+
+    keywords = new RegExp("((" + keywords.join(")|(") + "))\\b");
+    atom = new RegExp("((" + atom.join(")|(") + "))\\b");
+
+    function tokenBase (stream, state) {
+      var ch = stream.peek();
+
+      //Comment
+      if (state.incomment) {
+        if(!stream.skipTo("#}")) {
+          stream.skipToEnd();
+        } else {
+          stream.eatWhile(/\#|}/);
+          state.incomment = false;
+        }
+        return "comment";
+      //Tag
+      } else if (state.intag) {
+        //After operator
+        if(state.operator) {
+          state.operator = false;
+          if(stream.match(atom)) {
+            return "atom";
+          }
+          if(stream.match(number)) {
+            return "number";
+          }
+        }
+        //After sign
+        if(state.sign) {
+          state.sign = false;
+          if(stream.match(atom)) {
+            return "atom";
+          }
+          if(stream.match(number)) {
+            return "number";
+          }
+        }
+
+        if(state.instring) {
+          if(ch == state.instring) {
+            state.instring = false;
+          }
+          stream.next();
+          return "string";
+        } else if(ch == "'" || ch == '"') {
+          state.instring = ch;
+          stream.next();
+          return "string";
+        } else if(stream.match(state.intag + "}") || stream.eat("-") && stream.match(state.intag + "}")) {
+          state.intag = false;
+          return "tag";
+        } else if(stream.match(operator)) {
+          state.operator = true;
+          return "operator";
+        } else if(stream.match(sign)) {
+          state.sign = true;
+        } else {
+          if(stream.eat(" ") || stream.sol()) {
+            if(stream.match(keywords)) {
+              return "keyword";
+            }
+            if(stream.match(atom)) {
+              return "atom";
+            }
+            if(stream.match(number)) {
+              return "number";
+            }
+            if(stream.sol()) {
+              stream.next();
+            }
+          } else {
+            stream.next();
+          }
+
+        }
+        return "variable";
+      } else if (stream.eat("{")) {
+        if (ch = stream.eat("#")) {
+          state.incomment = true;
+          if(!stream.skipTo("#}")) {
+            stream.skipToEnd();
+          } else {
+            stream.eatWhile(/\#|}/);
+            state.incomment = false;
+          }
+          return "comment";
+        //Open tag
+        } else if (ch = stream.eat(/\{|%/)) {
+          //Cache close tag
+          state.intag = ch;
+          if(ch == "{") {
+            state.intag = "}";
+          }
+          stream.eat("-");
+          return "tag";
+        }
+      }
+      stream.next();
+    };
+
+    return {
+      startState: function () {
+        return {tokenize: tokenBase};
+      },
+      token: function (stream, state) {
+        return state.tokenize(stream, state);
+      }
+    };
+  });
+});
diff --git a/public/codemirror/mode/jsx/index.html b/public/codemirror/mode/jsx/index.html
new file mode 100644
index 000000000..1054bbcc0
--- /dev/null
+++ b/public/codemirror/mode/jsx/index.html
@@ -0,0 +1,89 @@
+
+
+CodeMirror: JSX mode
+
+
+
+
+
+
+
+
+
+
+
+

+
JSX mode

+
+

+
+
+
+
JSX Mode for React's
+JavaScript syntax extension.

+
+
MIME types defined: text/jsx, text/typescript-jsx.

+
+

diff --git a/public/codemirror/mode/jsx/jsx.js b/public/codemirror/mode/jsx/jsx.js
new file mode 100644
index 000000000..45c3024ab
--- /dev/null
+++ b/public/codemirror/mode/jsx/jsx.js
@@ -0,0 +1,148 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../xml/xml"), require("../javascript/javascript"))
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../xml/xml", "../javascript/javascript"], mod)
+  else // Plain browser env
+    mod(CodeMirror)
+})(function(CodeMirror) {
+  "use strict"
+
+  // Depth means the amount of open braces in JS context, in XML
+  // context 0 means not in tag, 1 means in tag, and 2 means in tag
+  // and js block comment.
+  function Context(state, mode, depth, prev) {
+    this.state = state; this.mode = mode; this.depth = depth; this.prev = prev
+  }
+
+  function copyContext(context) {
+    return new Context(CodeMirror.copyState(context.mode, context.state),
+                       context.mode,
+                       context.depth,
+                       context.prev && copyContext(context.prev))
+  }
+
+  CodeMirror.defineMode("jsx", function(config, modeConfig) {
+    var xmlMode = CodeMirror.getMode(config, {name: "xml", allowMissing: true, multilineTagIndentPastTag: false})
+    var jsMode = CodeMirror.getMode(config, modeConfig && modeConfig.base || "javascript")
+
+    function flatXMLIndent(state) {
+      var tagName = state.tagName
+      state.tagName = null
+      var result = xmlMode.indent(state, "")
+      state.tagName = tagName
+      return result
+    }
+
+    function token(stream, state) {
+      if (state.context.mode == xmlMode)
+        return xmlToken(stream, state, state.context)
+      else
+        return jsToken(stream, state, state.context)
+    }
+
+    function xmlToken(stream, state, cx) {
+      if (cx.depth == 2) { // Inside a JS /* */ comment
+        if (stream.match(/^.*?\*\//)) cx.depth = 1
+        else stream.skipToEnd()
+        return "comment"
+      }
+
+      if (stream.peek() == "{") {
+        xmlMode.skipAttribute(cx.state)
+
+        var indent = flatXMLIndent(cx.state), xmlContext = cx.state.context
+        // If JS starts on same line as tag
+        if (xmlContext && stream.match(/^[^>]*>\s*$/, false)) {
+          while (xmlContext.prev && !xmlContext.startOfLine)
+            xmlContext = xmlContext.prev
+          // If tag starts the line, use XML indentation level
+          if (xmlContext.startOfLine) indent -= config.indentUnit
+          // Else use JS indentation level
+          else if (cx.prev.state.lexical) indent = cx.prev.state.lexical.indented
+        // Else if inside of tag
+        } else if (cx.depth == 1) {
+          indent += config.indentUnit
+        }
+
+        state.context = new Context(CodeMirror.startState(jsMode, indent),
+                                    jsMode, 0, state.context)
+        return null
+      }
+
+      if (cx.depth == 1) { // Inside of tag
+        if (stream.peek() == "<") { // Tag inside of tag
+          xmlMode.skipAttribute(cx.state)
+          state.context = new Context(CodeMirror.startState(xmlMode, flatXMLIndent(cx.state)),
+                                      xmlMode, 0, state.context)
+          return null
+        } else if (stream.match("//")) {
+          stream.skipToEnd()
+          return "comment"
+        } else if (stream.match("/*")) {
+          cx.depth = 2
+          return token(stream, state)
+        }
+      }
+
+      var style = xmlMode.token(stream, cx.state), cur = stream.current(), stop
+      if (/\btag\b/.test(style)) {
+        if (/>$/.test(cur)) {
+          if (cx.state.context) cx.depth = 0
+          else state.context = state.context.prev
+        } else if (/^ -1) {
+        stream.backUp(cur.length - stop)
+      }
+      return style
+    }
+
+    function jsToken(stream, state, cx) {
+      if (stream.peek() == "<" && jsMode.expressionAllowed(stream, cx.state)) {
+        jsMode.skipExpression(cx.state)
+        state.context = new Context(CodeMirror.startState(xmlMode, jsMode.indent(cx.state, "")),
+                                    xmlMode, 0, state.context)
+        return null
+      }
+
+      var style = jsMode.token(stream, cx.state)
+      if (!style && cx.depth != null) {
+        var cur = stream.current()
+        if (cur == "{") {
+          cx.depth++
+        } else if (cur == "}") {
+          if (--cx.depth == 0) state.context = state.context.prev
+        }
+      }
+      return style
+    }
+
+    return {
+      startState: function() {
+        return {context: new Context(CodeMirror.startState(jsMode), jsMode)}
+      },
+
+      copyState: function(state) {
+        return {context: copyContext(state.context)}
+      },
+
+      token: token,
+
+      indent: function(state, textAfter, fullLine) {
+        return state.context.mode.indent(state.context.state, textAfter, fullLine)
+      },
+
+      innerMode: function(state) {
+        return state.context
+      }
+    }
+  }, "xml", "javascript")
+
+  CodeMirror.defineMIME("text/jsx", "jsx")
+  CodeMirror.defineMIME("text/typescript-jsx", {name: "jsx", base: {name: "javascript", typescript: true}})
+});
diff --git a/public/codemirror/mode/jsx/test.js b/public/codemirror/mode/jsx/test.js
new file mode 100644
index 000000000..c7def5a3e
--- /dev/null
+++ b/public/codemirror/mode/jsx/test.js
@@ -0,0 +1,85 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({indentUnit: 2}, "jsx")
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)) }
+
+  MT("selfclose",
+     "[keyword var] [def x] [operator =] [bracket&tag <] [tag foo] [bracket&tag />] [operator +] [number 1];")
+
+  MT("openclose",
+     "([bracket&tag <][tag foo][bracket&tag >]hello [atom &][bracket&tag ][operator ++])")
+
+  MT("attr",
+     "([bracket&tag <][tag foo] [attribute abc]=[string 'value'][bracket&tag >]hello [atom &][bracket&tag ][operator ++])")
+
+  MT("braced_attr",
+     "([bracket&tag <][tag foo] [attribute abc]={[number 10]}[bracket&tag >]hello [atom &][bracket&tag ][operator ++])")
+
+  MT("braced_text",
+     "([bracket&tag <][tag foo][bracket&tag >]hello {[number 10]} [atom &][bracket&tag ][operator ++])")
+
+  MT("nested_tag",
+     "([bracket&tag <][tag foo][bracket&tag ><][tag bar][bracket&tag >][operator ++])")
+
+  MT("nested_jsx",
+     "[keyword return] (",
+     "  [bracket&tag <][tag foo][bracket&tag >]",
+     "    say {[number 1] [operator +] [bracket&tag <][tag bar] [attribute attr]={[number 10]}[bracket&tag />]}!",
+     "  [bracket&tag ][operator ++]",
+     ")")
+
+  MT("preserve_js_context",
+     "[variable x] [operator =] [string-2 `quasi${][bracket&tag <][tag foo][bracket&tag />][string-2 }quoted`]")
+
+  MT("line_comment",
+     "([bracket&tag <][tag foo] [comment // hello]",
+     "   [bracket&tag >][operator ++])")
+
+  MT("line_comment_not_in_tag",
+     "([bracket&tag <][tag foo][bracket&tag >] // hello",
+     "  [bracket&tag ][operator ++])")
+
+  MT("block_comment",
+     "([bracket&tag <][tag foo] [comment /* hello]",
+     "[comment    line 2]",
+     "[comment    line 3 */] [bracket&tag >][operator ++])")
+
+  MT("block_comment_not_in_tag",
+     "([bracket&tag <][tag foo][bracket&tag >]/* hello",
+     "    line 2",
+     "    line 3 */ [bracket&tag ][operator ++])")
+
+  MT("missing_attr",
+     "([bracket&tag <][tag foo] [attribute selected][bracket&tag />][operator ++])")
+
+  MT("indent_js",
+     "([bracket&tag <][tag foo][bracket&tag >]",
+     "    [bracket&tag <][tag bar] [attribute baz]={[keyword function]() {",
+     "        [keyword return] [number 10]",
+     "      }}[bracket&tag />]",
+     "  [bracket&tag ])")
+
+  MT("spread",
+     "([bracket&tag <][tag foo] [attribute bar]={[meta ...][variable baz] [operator /][number 2]}[bracket&tag />])")
+
+  MT("tag_attribute",
+     "([bracket&tag <][tag foo] [attribute bar]=[bracket&tag <][tag foo][bracket&tag />/>][operator ++])")
+
+  var ts_mode = CodeMirror.getMode({indentUnit: 2}, "text/typescript-jsx")
+  function TS(name) { test.mode(name, ts_mode, Array.prototype.slice.call(arguments, 1)) }
+
+  TS("tsx_react_integration",
+     "[keyword interface] [def Props] {",
+     "  [property foo]: [variable-3 string];",
+     "}",
+     "[keyword class] [def MyComponent] [keyword extends] [variable-3 React].[variable-3 Component] [operator <] [variable-3 Props], [variable-3 any] [operator >] {",
+     "  [property render]() {",
+     "    [keyword return] [bracket&tag <][tag span][bracket&tag >]{[keyword this].[property props].[property foo]}[bracket&tag ]",
+     "  }",
+     "}",
+     "[bracket&tag <][tag MyComponent] [attribute foo]=[string \"bar\"] [bracket&tag />]; [comment //ok]",
+     "[bracket&tag <][tag MyComponent] [attribute foo]={[number 0]} [bracket&tag />]; [comment //error]")
+
+})()
diff --git a/public/codemirror/mode/julia/index.html b/public/codemirror/mode/julia/index.html
new file mode 100644
index 000000000..e1492c210
--- /dev/null
+++ b/public/codemirror/mode/julia/index.html
@@ -0,0 +1,195 @@
+
+
+CodeMirror: Julia mode
+
+
+
+
+
+
+
+
+
+

+
Julia mode

+
+    

+    
+
+    
MIME types defined: text/x-julia.

+

diff --git a/public/codemirror/mode/julia/julia.js b/public/codemirror/mode/julia/julia.js
new file mode 100644
index 000000000..8fc999f5f
--- /dev/null
+++ b/public/codemirror/mode/julia/julia.js
@@ -0,0 +1,410 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("julia", function(config, parserConf) {
+  function wordRegexp(words, end) {
+    if (typeof end === "undefined") { end = "\\b"; }
+    return new RegExp("^((" + words.join(")|(") + "))" + end);
+  }
+
+  var octChar = "\\\\[0-7]{1,3}";
+  var hexChar = "\\\\x[A-Fa-f0-9]{1,2}";
+  var sChar = "\\\\[abefnrtv0%?'\"\\\\]";
+  var uChar = "([^\\u0027\\u005C\\uD800-\\uDFFF]|[\\uD800-\\uDFFF][\\uDC00-\\uDFFF])";
+
+  var operators = parserConf.operators || wordRegexp([
+      "\\.?[\\\\%*+\\-<>!=\\/^]=?", "\\.?[|&\\u00F7\\u2260\\u2264\\u2265]",
+      "\\u00D7", "\\u2208", "\\u2209", "\\u220B", "\\u220C", "\\u2229",
+      "\\u222A", "\\u2286", "\\u2288", "\\u228A", "\\u22c5", "\\?", "~", ":",
+      "\\$", "\\.[<>]", "<<=?", ">>>?=?", "\\.[<>=]=", "->?", "\\/\\/", "=>",
+      "<:", "\\bin\\b(?!\\()"], "");
+  var delimiters = parserConf.delimiters || /^[;,()[\]{}]/;
+  var identifiers = parserConf.identifiers || /^[_A-Za-z\u00A1-\uFFFF][\w\u00A1-\uFFFF]*!*/;
+
+  var chars = wordRegexp([octChar, hexChar, sChar, uChar], "'");
+  var openers = wordRegexp(["begin", "function", "type", "immutable", "let",
+      "macro", "for", "while", "quote", "if", "else", "elseif", "try",
+      "finally", "catch", "do"]);
+  var closers = wordRegexp(["end", "else", "elseif", "catch", "finally"]);
+  var keywords = wordRegexp(["if", "else", "elseif", "while", "for", "begin",
+      "let", "end", "do", "try", "catch", "finally", "return", "break",
+      "continue", "global", "local", "const", "export", "import", "importall",
+      "using", "function", "macro", "module", "baremodule", "type",
+      "immutable", "quote", "typealias", "abstract", "bitstype"]);
+  var builtins = wordRegexp(["true", "false", "nothing", "NaN", "Inf"]);
+
+  var macro = /^@[_A-Za-z][\w]*/;
+  var symbol = /^:[_A-Za-z\u00A1-\uFFFF][\w\u00A1-\uFFFF]*!*/;
+  var stringPrefixes = /^(`|"{3}|([_A-Za-z\u00A1-\uFFFF]*"))/;
+
+  function inArray(state) {
+    return inGenerator(state, '[')
+  }
+
+  function inGenerator(state, bracket) {
+    var curr = currentScope(state),
+        prev = currentScope(state, 1);
+    if (typeof(bracket) === "undefined") { bracket = '('; }
+    if (curr === bracket || (prev === bracket && curr === "for")) {
+      return true;
+    }
+    return false;
+  }
+
+  function currentScope(state, n) {
+    if (typeof(n) === "undefined") { n = 0; }
+    if (state.scopes.length <= n) {
+      return null;
+    }
+    return state.scopes[state.scopes.length - (n + 1)];
+  }
+
+  // tokenizers
+  function tokenBase(stream, state) {
+    // Handle multiline comments
+    if (stream.match(/^#=/, false)) {
+      state.tokenize = tokenComment;
+      return state.tokenize(stream, state);
+    }
+
+    // Handle scope changes
+    var leavingExpr = state.leavingExpr;
+    if (stream.sol()) {
+      leavingExpr = false;
+    }
+    state.leavingExpr = false;
+
+    if (leavingExpr) {
+      if (stream.match(/^'+/)) {
+        return "operator";
+      }
+    }
+
+    if (stream.match(/^\.{2,3}/)) {
+      return "operator";
+    }
+
+    if (stream.eatSpace()) {
+      return null;
+    }
+
+    var ch = stream.peek();
+
+    // Handle single line comments
+    if (ch === '#') {
+      stream.skipToEnd();
+      return "comment";
+    }
+
+    if (ch === '[') {
+      state.scopes.push('[');
+    }
+
+    if (ch === '(') {
+      state.scopes.push('(');
+    }
+
+    var scope = currentScope(state);
+
+    if (inArray(state) && ch === ']') {
+      if (scope === "for") { state.scopes.pop(); }
+      state.scopes.pop();
+      state.leavingExpr = true;
+    }
+
+    if (inGenerator(state) && ch === ')') {
+      if (scope === "for") { state.scopes.pop(); }
+      state.scopes.pop();
+      state.leavingExpr = true;
+    }
+
+    var match;
+    if (match = stream.match(openers, false)) {
+      state.scopes.push(match[0]);
+    }
+
+    if (stream.match(closers, false)) {
+      state.scopes.pop();
+    }
+
+    if (inArray(state)) {
+      if (state.lastToken == "end" && stream.match(/^:/)) {
+        return "operator";
+      }
+      if (stream.match(/^end/)) {
+        return "number";
+      }
+    }
+
+    // Handle type annotations
+    if (stream.match(/^::(?![:\$])/)) {
+      state.tokenize = tokenAnnotation;
+      return state.tokenize(stream, state);
+    }
+
+    // Handle symbols
+    if (!leavingExpr && stream.match(symbol) || stream.match(/:\./)) {
+      return "builtin";
+    }
+
+    // Handle parametric types
+    if (stream.match(/^{[^}]*}(?=\()/)) {
+      return "builtin";
+    }
+
+    // Handle operators and Delimiters
+    if (stream.match(operators)) {
+      return "operator";
+    }
+
+    // Handle Number Literals
+    if (stream.match(/^[0-9\.]/, false)) {
+      var imMatcher = RegExp(/^im\b/);
+      var numberLiteral = false;
+      // Floats
+      if (stream.match(/^\d*\.(?!\.)\d*([Eef][\+\-]?\d+)?/i)) { numberLiteral = true; }
+      if (stream.match(/^\d+\.(?!\.)\d*/)) { numberLiteral = true; }
+      if (stream.match(/^\.\d+/)) { numberLiteral = true; }
+      if (stream.match(/^0x\.[0-9a-f]+p[\+\-]?\d+/i)) { numberLiteral = true; }
+      // Integers
+      if (stream.match(/^0x[0-9a-f]+/i)) { numberLiteral = true; } // Hex
+      if (stream.match(/^0b[01]+/i)) { numberLiteral = true; } // Binary
+      if (stream.match(/^0o[0-7]+/i)) { numberLiteral = true; } // Octal
+      if (stream.match(/^[1-9]\d*(e[\+\-]?\d+)?/)) { numberLiteral = true; } // Decimal
+      // Zero by itself with no other piece of number.
+      if (stream.match(/^0(?![\dx])/i)) { numberLiteral = true; }
+      if (numberLiteral) {
+          // Integer literals may be "long"
+          stream.match(imMatcher);
+          state.leavingExpr = true;
+          return "number";
+      }
+    }
+
+    // Handle Chars
+    if (stream.match(/^'/)) {
+      state.tokenize = tokenChar;
+      return state.tokenize(stream, state);
+    }
+
+    // Handle Strings
+    if (stream.match(stringPrefixes)) {
+      state.tokenize = tokenStringFactory(stream.current());
+      return state.tokenize(stream, state);
+    }
+
+    if (stream.match(macro)) {
+      return "meta";
+    }
+
+    if (stream.match(delimiters)) {
+      return null;
+    }
+
+    if (stream.match(keywords)) {
+      return "keyword";
+    }
+
+    if (stream.match(builtins)) {
+      return "builtin";
+    }
+
+    var isDefinition = state.isDefinition || state.lastToken == "function" ||
+                       state.lastToken == "macro" || state.lastToken == "type" ||
+                       state.lastToken == "immutable";
+
+    if (stream.match(identifiers)) {
+      if (isDefinition) {
+        if (stream.peek() === '.') {
+          state.isDefinition = true;
+          return "variable";
+        }
+        state.isDefinition = false;
+        return "def";
+      }
+      if (stream.match(/^({[^}]*})*\(/, false)) {
+        return callOrDef(stream, state);
+      }
+      state.leavingExpr = true;
+      return "variable";
+    }
+
+    // Handle non-detected items
+    stream.next();
+    return "error";
+  }
+
+  function callOrDef(stream, state) {
+    var match = stream.match(/^(\(\s*)/);
+    if (match) {
+      if (state.firstParenPos < 0)
+        state.firstParenPos = state.scopes.length;
+      state.scopes.push('(');
+      state.charsAdvanced += match[1].length;
+    }
+    if (currentScope(state) == '(' && stream.match(/^\)/)) {
+      state.scopes.pop();
+      state.charsAdvanced += 1;
+      if (state.scopes.length <= state.firstParenPos) {
+        var isDefinition = stream.match(/^\s*?=(?!=)/, false);
+        stream.backUp(state.charsAdvanced);
+        state.firstParenPos = -1;
+        state.charsAdvanced = 0;
+        if (isDefinition)
+          return "def";
+        return "builtin";
+      }
+    }
+    // Unfortunately javascript does not support multiline strings, so we have
+    // to undo anything done upto here if a function call or definition splits
+    // over two or more lines.
+    if (stream.match(/^$/g, false)) {
+      stream.backUp(state.charsAdvanced);
+      while (state.scopes.length > state.firstParenPos)
+        state.scopes.pop();
+      state.firstParenPos = -1;
+      state.charsAdvanced = 0;
+      return "builtin";
+    }
+    state.charsAdvanced += stream.match(/^([^()]*)/)[1].length;
+    return callOrDef(stream, state);
+  }
+
+  function tokenAnnotation(stream, state) {
+    stream.match(/.*?(?=,|;|{|}|\(|\)|=|$|\s)/);
+    if (stream.match(/^{/)) {
+      state.nestedLevels++;
+    } else if (stream.match(/^}/)) {
+      state.nestedLevels--;
+    }
+    if (state.nestedLevels > 0) {
+      stream.match(/.*?(?={|})/);
+    } else if (state.nestedLevels == 0) {
+      state.tokenize = tokenBase;
+    }
+    return "builtin";
+  }
+
+  function tokenComment(stream, state) {
+    if (stream.match(/^#=/)) {
+      state.nestedLevels++;
+    }
+    if (!stream.match(/.*?(?=(#=|=#))/)) {
+      stream.skipToEnd();
+    }
+    if (stream.match(/^=#/)) {
+      state.nestedLevels--;
+      if (state.nestedLevels == 0)
+        state.tokenize = tokenBase;
+    }
+    return "comment";
+  }
+
+  function tokenChar(stream, state) {
+    var isChar = false, match;
+    if (stream.match(chars)) {
+      isChar = true;
+    } else if (match = stream.match(/\\u([a-f0-9]{1,4})(?=')/i)) {
+      var value = parseInt(match[1], 16);
+      if (value <= 55295 || value >= 57344) { // (U+0,U+D7FF), (U+E000,U+FFFF)
+        isChar = true;
+        stream.next();
+      }
+    } else if (match = stream.match(/\\U([A-Fa-f0-9]{5,8})(?=')/)) {
+      var value = parseInt(match[1], 16);
+      if (value <= 1114111) { // U+10FFFF
+        isChar = true;
+        stream.next();
+      }
+    }
+    if (isChar) {
+      state.leavingExpr = true;
+      state.tokenize = tokenBase;
+      return "string";
+    }
+    if (!stream.match(/^[^']+(?=')/)) { stream.skipToEnd(); }
+    if (stream.match(/^'/)) { state.tokenize = tokenBase; }
+    return "error";
+  }
+
+  function tokenStringFactory(delimiter) {
+    delimiter = (delimiter === '`' || delimiter === '"""') ? delimiter : '"';
+    function tokenString(stream, state) {
+      if (stream.eat('\\')) {
+        stream.next();
+      } else if (stream.match(delimiter)) {
+        state.tokenize = tokenBase;
+        state.leavingExpr = true;
+        return "string";
+      } else {
+        stream.eat(/[`"]/);
+      }
+      stream.eatWhile(/[^\\`"]/);
+      return "string";
+    }
+    return tokenString;
+  }
+
+  var external = {
+    startState: function() {
+      return {
+        tokenize: tokenBase,
+        scopes: [],
+        lastToken: null,
+        leavingExpr: false,
+        isDefinition: false,
+        nestedLevels: 0,
+        charsAdvanced: 0,
+        firstParenPos: -1
+      };
+    },
+
+    token: function(stream, state) {
+      var style = state.tokenize(stream, state);
+      var current = stream.current();
+
+      if (current && style) {
+        state.lastToken = current;
+      }
+
+      // Handle '.' connected identifiers
+      if (current === '.') {
+        style = stream.match(identifiers, false) || stream.match(macro, false) ||
+                stream.match(/\(/, false) ? "operator" : "error";
+      }
+      return style;
+    },
+
+    indent: function(state, textAfter) {
+      var delta = 0;
+      if ( textAfter === ']' || textAfter === ')' || textAfter === "end" ||
+           textAfter === "else" || textAfter === "catch" || textAfter === "elseif" ||
+           textAfter === "finally" ) {
+        delta = -1;
+      }
+      return (state.scopes.length + delta) * config.indentUnit;
+    },
+
+    electricInput: /\b(end|else|catch|finally)\b/,
+    blockCommentStart: "#=",
+    blockCommentEnd: "=#",
+    lineComment: "#",
+    fold: "indent"
+  };
+  return external;
+});
+
+
+CodeMirror.defineMIME("text/x-julia", "julia");
+
+});
diff --git a/public/codemirror/mode/livescript/index.html b/public/codemirror/mode/livescript/index.html
new file mode 100644
index 000000000..f41547987
--- /dev/null
+++ b/public/codemirror/mode/livescript/index.html
@@ -0,0 +1,459 @@
+
+
+CodeMirror: LiveScript mode
+
+
+
+
+
+
+
+
+
+
+

+
LiveScript mode

+

+    
+
+    
MIME types defined: text/x-livescript.

+
+    
The LiveScript mode was written by Kenneth Bentley.

+
+  

diff --git a/public/codemirror/mode/livescript/livescript.js b/public/codemirror/mode/livescript/livescript.js
new file mode 100644
index 000000000..1e363f876
--- /dev/null
+++ b/public/codemirror/mode/livescript/livescript.js
@@ -0,0 +1,280 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+/**
+ * Link to the project's GitHub page:
+ * https://github.com/duralog/CodeMirror
+ */
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineMode('livescript', function(){
+    var tokenBase = function(stream, state) {
+      var next_rule = state.next || "start";
+      if (next_rule) {
+        state.next = state.next;
+        var nr = Rules[next_rule];
+        if (nr.splice) {
+          for (var i$ = 0; i$ < nr.length; ++i$) {
+            var r = nr[i$];
+            if (r.regex && stream.match(r.regex)) {
+              state.next = r.next || state.next;
+              return r.token;
+            }
+          }
+          stream.next();
+          return 'error';
+        }
+        if (stream.match(r = Rules[next_rule])) {
+          if (r.regex && stream.match(r.regex)) {
+            state.next = r.next;
+            return r.token;
+          } else {
+            stream.next();
+            return 'error';
+          }
+        }
+      }
+      stream.next();
+      return 'error';
+    };
+    var external = {
+      startState: function(){
+        return {
+          next: 'start',
+          lastToken: {style: null, indent: 0, content: ""}
+        };
+      },
+      token: function(stream, state){
+        while (stream.pos == stream.start)
+          var style = tokenBase(stream, state);
+        state.lastToken = {
+          style: style,
+          indent: stream.indentation(),
+          content: stream.current()
+        };
+        return style.replace(/\./g, ' ');
+      },
+      indent: function(state){
+        var indentation = state.lastToken.indent;
+        if (state.lastToken.content.match(indenter)) {
+          indentation += 2;
+        }
+        return indentation;
+      }
+    };
+    return external;
+  });
+
+  var identifier = '(?![\\d\\s])[$\\w\\xAA-\\uFFDC](?:(?!\\s)[$\\w\\xAA-\\uFFDC]|-[A-Za-z])*';
+  var indenter = RegExp('(?:[({[=:]|[-~]>|\\b(?:e(?:lse|xport)|d(?:o|efault)|t(?:ry|hen)|finally|import(?:\\s*all)?|const|var|let|new|catch(?:\\s*' + identifier + ')?))\\s*$');
+  var keywordend = '(?![$\\w]|-[A-Za-z]|\\s*:(?![:=]))';
+  var stringfill = {
+    token: 'string',
+    regex: '.+'
+  };
+  var Rules = {
+    start: [
+      {
+        token: 'comment.doc',
+        regex: '/\\*',
+        next: 'comment'
+      }, {
+        token: 'comment',
+        regex: '#.*'
+      }, {
+        token: 'keyword',
+        regex: '(?:t(?:h(?:is|row|en)|ry|ypeof!?)|c(?:on(?:tinue|st)|a(?:se|tch)|lass)|i(?:n(?:stanceof)?|mp(?:ort(?:\\s+all)?|lements)|[fs])|d(?:e(?:fault|lete|bugger)|o)|f(?:or(?:\\s+own)?|inally|unction)|s(?:uper|witch)|e(?:lse|x(?:tends|port)|val)|a(?:nd|rguments)|n(?:ew|ot)|un(?:less|til)|w(?:hile|ith)|o[fr]|return|break|let|var|loop)' + keywordend
+      }, {
+        token: 'constant.language',
+        regex: '(?:true|false|yes|no|on|off|null|void|undefined)' + keywordend
+      }, {
+        token: 'invalid.illegal',
+        regex: '(?:p(?:ackage|r(?:ivate|otected)|ublic)|i(?:mplements|nterface)|enum|static|yield)' + keywordend
+      }, {
+        token: 'language.support.class',
+        regex: '(?:R(?:e(?:gExp|ferenceError)|angeError)|S(?:tring|yntaxError)|E(?:rror|valError)|Array|Boolean|Date|Function|Number|Object|TypeError|URIError)' + keywordend
+      }, {
+        token: 'language.support.function',
+        regex: '(?:is(?:NaN|Finite)|parse(?:Int|Float)|Math|JSON|(?:en|de)codeURI(?:Component)?)' + keywordend
+      }, {
+        token: 'variable.language',
+        regex: '(?:t(?:hat|il|o)|f(?:rom|allthrough)|it|by|e)' + keywordend
+      }, {
+        token: 'identifier',
+        regex: identifier + '\\s*:(?![:=])'
+      }, {
+        token: 'variable',
+        regex: identifier
+      }, {
+        token: 'keyword.operator',
+        regex: '(?:\\.{3}|\\s+\\?)'
+      }, {
+        token: 'keyword.variable',
+        regex: '(?:@+|::|\\.\\.)',
+        next: 'key'
+      }, {
+        token: 'keyword.operator',
+        regex: '\\.\\s*',
+        next: 'key'
+      }, {
+        token: 'string',
+        regex: '\\\\\\S[^\\s,;)}\\]]*'
+      }, {
+        token: 'string.doc',
+        regex: '\'\'\'',
+        next: 'qdoc'
+      }, {
+        token: 'string.doc',
+        regex: '"""',
+        next: 'qqdoc'
+      }, {
+        token: 'string',
+        regex: '\'',
+        next: 'qstring'
+      }, {
+        token: 'string',
+        regex: '"',
+        next: 'qqstring'
+      }, {
+        token: 'string',
+        regex: '`',
+        next: 'js'
+      }, {
+        token: 'string',
+        regex: '<\\[',
+        next: 'words'
+      }, {
+        token: 'string.regex',
+        regex: '//',
+        next: 'heregex'
+      }, {
+        token: 'string.regex',
+        regex: '\\/(?:[^[\\/\\n\\\\]*(?:(?:\\\\.|\\[[^\\]\\n\\\\]*(?:\\\\.[^\\]\\n\\\\]*)*\\])[^[\\/\\n\\\\]*)*)\\/[gimy$]{0,4}',
+        next: 'key'
+      }, {
+        token: 'constant.numeric',
+        regex: '(?:0x[\\da-fA-F][\\da-fA-F_]*|(?:[2-9]|[12]\\d|3[0-6])r[\\da-zA-Z][\\da-zA-Z_]*|(?:\\d[\\d_]*(?:\\.\\d[\\d_]*)?|\\.\\d[\\d_]*)(?:e[+-]?\\d[\\d_]*)?[\\w$]*)'
+      }, {
+        token: 'lparen',
+        regex: '[({[]'
+      }, {
+        token: 'rparen',
+        regex: '[)}\\]]',
+        next: 'key'
+      }, {
+        token: 'keyword.operator',
+        regex: '\\S+'
+      }, {
+        token: 'text',
+        regex: '\\s+'
+      }
+    ],
+    heregex: [
+      {
+        token: 'string.regex',
+        regex: '.*?//[gimy$?]{0,4}',
+        next: 'start'
+      }, {
+        token: 'string.regex',
+        regex: '\\s*#{'
+      }, {
+        token: 'comment.regex',
+        regex: '\\s+(?:#.*)?'
+      }, {
+        token: 'string.regex',
+        regex: '\\S+'
+      }
+    ],
+    key: [
+      {
+        token: 'keyword.operator',
+        regex: '[.?@!]+'
+      }, {
+        token: 'identifier',
+        regex: identifier,
+        next: 'start'
+      }, {
+        token: 'text',
+        regex: '',
+        next: 'start'
+      }
+    ],
+    comment: [
+      {
+        token: 'comment.doc',
+        regex: '.*?\\*/',
+        next: 'start'
+      }, {
+        token: 'comment.doc',
+        regex: '.+'
+      }
+    ],
+    qdoc: [
+      {
+        token: 'string',
+        regex: ".*?'''",
+        next: 'key'
+      }, stringfill
+    ],
+    qqdoc: [
+      {
+        token: 'string',
+        regex: '.*?"""',
+        next: 'key'
+      }, stringfill
+    ],
+    qstring: [
+      {
+        token: 'string',
+        regex: '[^\\\\\']*(?:\\\\.[^\\\\\']*)*\'',
+        next: 'key'
+      }, stringfill
+    ],
+    qqstring: [
+      {
+        token: 'string',
+        regex: '[^\\\\"]*(?:\\\\.[^\\\\"]*)*"',
+        next: 'key'
+      }, stringfill
+    ],
+    js: [
+      {
+        token: 'string',
+        regex: '[^\\\\`]*(?:\\\\.[^\\\\`]*)*`',
+        next: 'key'
+      }, stringfill
+    ],
+    words: [
+      {
+        token: 'string',
+        regex: '.*?\\]>',
+        next: 'key'
+      }, stringfill
+    ]
+  };
+  for (var idx in Rules) {
+    var r = Rules[idx];
+    if (r.splice) {
+      for (var i = 0, len = r.length; i < len; ++i) {
+        var rr = r[i];
+        if (typeof rr.regex === 'string') {
+          Rules[idx][i].regex = new RegExp('^' + rr.regex);
+        }
+      }
+    } else if (typeof rr.regex === 'string') {
+      Rules[idx].regex = new RegExp('^' + r.regex);
+    }
+  }
+
+  CodeMirror.defineMIME('text/x-livescript', 'livescript');
+
+});
diff --git a/public/codemirror/mode/lua/index.html b/public/codemirror/mode/lua/index.html
new file mode 100644
index 000000000..fc98b9446
--- /dev/null
+++ b/public/codemirror/mode/lua/index.html
@@ -0,0 +1,85 @@
+
+
+CodeMirror: Lua mode
+
+
+
+
+
+
+
+
+
+
+
+

+
Lua mode

+

+    
+
+    
Loosely based on Franciszek
+    Wawrzak's CodeMirror
+    1 mode. One configuration parameter is
+    supported, specials, to which you can provide an
+    array of strings to have those identifiers highlighted with
+    the lua-special style.

+    
MIME types defined: text/x-lua.

+
+  

diff --git a/public/codemirror/mode/lua/lua.js b/public/codemirror/mode/lua/lua.js
new file mode 100644
index 000000000..0b19abd30
--- /dev/null
+++ b/public/codemirror/mode/lua/lua.js
@@ -0,0 +1,159 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// LUA mode. Ported to CodeMirror 2 from Franciszek Wawrzak's
+// CodeMirror 1 mode.
+// highlights keywords, strings, comments (no leveling supported! ("[==[")), tokens, basic indenting
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("lua", function(config, parserConfig) {
+  var indentUnit = config.indentUnit;
+
+  function prefixRE(words) {
+    return new RegExp("^(?:" + words.join("|") + ")", "i");
+  }
+  function wordRE(words) {
+    return new RegExp("^(?:" + words.join("|") + ")$", "i");
+  }
+  var specials = wordRE(parserConfig.specials || []);
+
+  // long list of standard functions from lua manual
+  var builtins = wordRE([
+    "_G","_VERSION","assert","collectgarbage","dofile","error","getfenv","getmetatable","ipairs","load",
+    "loadfile","loadstring","module","next","pairs","pcall","print","rawequal","rawget","rawset","require",
+    "select","setfenv","setmetatable","tonumber","tostring","type","unpack","xpcall",
+
+    "coroutine.create","coroutine.resume","coroutine.running","coroutine.status","coroutine.wrap","coroutine.yield",
+
+    "debug.debug","debug.getfenv","debug.gethook","debug.getinfo","debug.getlocal","debug.getmetatable",
+    "debug.getregistry","debug.getupvalue","debug.setfenv","debug.sethook","debug.setlocal","debug.setmetatable",
+    "debug.setupvalue","debug.traceback",
+
+    "close","flush","lines","read","seek","setvbuf","write",
+
+    "io.close","io.flush","io.input","io.lines","io.open","io.output","io.popen","io.read","io.stderr","io.stdin",
+    "io.stdout","io.tmpfile","io.type","io.write",
+
+    "math.abs","math.acos","math.asin","math.atan","math.atan2","math.ceil","math.cos","math.cosh","math.deg",
+    "math.exp","math.floor","math.fmod","math.frexp","math.huge","math.ldexp","math.log","math.log10","math.max",
+    "math.min","math.modf","math.pi","math.pow","math.rad","math.random","math.randomseed","math.sin","math.sinh",
+    "math.sqrt","math.tan","math.tanh",
+
+    "os.clock","os.date","os.difftime","os.execute","os.exit","os.getenv","os.remove","os.rename","os.setlocale",
+    "os.time","os.tmpname",
+
+    "package.cpath","package.loaded","package.loaders","package.loadlib","package.path","package.preload",
+    "package.seeall",
+
+    "string.byte","string.char","string.dump","string.find","string.format","string.gmatch","string.gsub",
+    "string.len","string.lower","string.match","string.rep","string.reverse","string.sub","string.upper",
+
+    "table.concat","table.insert","table.maxn","table.remove","table.sort"
+  ]);
+  var keywords = wordRE(["and","break","elseif","false","nil","not","or","return",
+                         "true","function", "end", "if", "then", "else", "do",
+                         "while", "repeat", "until", "for", "in", "local" ]);
+
+  var indentTokens = wordRE(["function", "if","repeat","do", "\\(", "{"]);
+  var dedentTokens = wordRE(["end", "until", "\\)", "}"]);
+  var dedentPartial = prefixRE(["end", "until", "\\)", "}", "else", "elseif"]);
+
+  function readBracket(stream) {
+    var level = 0;
+    while (stream.eat("=")) ++level;
+    stream.eat("[");
+    return level;
+  }
+
+  function normal(stream, state) {
+    var ch = stream.next();
+    if (ch == "-" && stream.eat("-")) {
+      if (stream.eat("[") && stream.eat("["))
+        return (state.cur = bracketed(readBracket(stream), "comment"))(stream, state);
+      stream.skipToEnd();
+      return "comment";
+    }
+    if (ch == "\"" || ch == "'")
+      return (state.cur = string(ch))(stream, state);
+    if (ch == "[" && /[\[=]/.test(stream.peek()))
+      return (state.cur = bracketed(readBracket(stream), "string"))(stream, state);
+    if (/\d/.test(ch)) {
+      stream.eatWhile(/[\w.%]/);
+      return "number";
+    }
+    if (/[\w_]/.test(ch)) {
+      stream.eatWhile(/[\w\\\-_.]/);
+      return "variable";
+    }
+    return null;
+  }
+
+  function bracketed(level, style) {
+    return function(stream, state) {
+      var curlev = null, ch;
+      while ((ch = stream.next()) != null) {
+        if (curlev == null) {if (ch == "]") curlev = 0;}
+        else if (ch == "=") ++curlev;
+        else if (ch == "]" && curlev == level) { state.cur = normal; break; }
+        else curlev = null;
+      }
+      return style;
+    };
+  }
+
+  function string(quote) {
+    return function(stream, state) {
+      var escaped = false, ch;
+      while ((ch = stream.next()) != null) {
+        if (ch == quote && !escaped) break;
+        escaped = !escaped && ch == "\\";
+      }
+      if (!escaped) state.cur = normal;
+      return "string";
+    };
+  }
+
+  return {
+    startState: function(basecol) {
+      return {basecol: basecol || 0, indentDepth: 0, cur: normal};
+    },
+
+    token: function(stream, state) {
+      if (stream.eatSpace()) return null;
+      var style = state.cur(stream, state);
+      var word = stream.current();
+      if (style == "variable") {
+        if (keywords.test(word)) style = "keyword";
+        else if (builtins.test(word)) style = "builtin";
+        else if (specials.test(word)) style = "variable-2";
+      }
+      if ((style != "comment") && (style != "string")){
+        if (indentTokens.test(word)) ++state.indentDepth;
+        else if (dedentTokens.test(word)) --state.indentDepth;
+      }
+      return style;
+    },
+
+    indent: function(state, textAfter) {
+      var closing = dedentPartial.test(textAfter);
+      return state.basecol + indentUnit * (state.indentDepth - (closing ? 1 : 0));
+    },
+
+    lineComment: "--",
+    blockCommentStart: "--[[",
+    blockCommentEnd: "]]"
+  };
+});
+
+CodeMirror.defineMIME("text/x-lua", "lua");
+
+});
diff --git a/public/codemirror/mode/markdown/index.html b/public/codemirror/mode/markdown/index.html
new file mode 100644
index 000000000..15660c261
--- /dev/null
+++ b/public/codemirror/mode/markdown/index.html
@@ -0,0 +1,361 @@
+
+
+CodeMirror: Markdown mode
+
+
+
+
+
+
+
+
+
+
+
+

+
Markdown mode

+

+
+    
+
+    
You might want to use the Github-Flavored Markdown mode instead, which adds support for fenced code blocks and a few other things.

+
+    
Optionally depends on the XML mode for properly highlighted inline XML blocks.

+    
+    
MIME types defined: text/x-markdown.

+
+    
Parsing/Highlighting Tests: normal,  verbose.

+
+  

diff --git a/public/codemirror/mode/markdown/markdown.js b/public/codemirror/mode/markdown/markdown.js
new file mode 100644
index 000000000..e649b0917
--- /dev/null
+++ b/public/codemirror/mode/markdown/markdown.js
@@ -0,0 +1,808 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../xml/xml"), require("../meta"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../xml/xml", "../meta"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("markdown", function(cmCfg, modeCfg) {
+
+  var htmlMode = CodeMirror.getMode(cmCfg, "text/html");
+  var htmlModeMissing = htmlMode.name == "null"
+
+  function getMode(name) {
+    if (CodeMirror.findModeByName) {
+      var found = CodeMirror.findModeByName(name);
+      if (found) name = found.mime || found.mimes[0];
+    }
+    var mode = CodeMirror.getMode(cmCfg, name);
+    return mode.name == "null" ? null : mode;
+  }
+
+  // Should characters that affect highlighting be highlighted separate?
+  // Does not include characters that will be output (such as `1.` and `-` for lists)
+  if (modeCfg.highlightFormatting === undefined)
+    modeCfg.highlightFormatting = false;
+
+  // Maximum number of nested blockquotes. Set to 0 for infinite nesting.
+  // Excess `>` will emit `error` token.
+  if (modeCfg.maxBlockquoteDepth === undefined)
+    modeCfg.maxBlockquoteDepth = 0;
+
+  // Should underscores in words open/close em/strong?
+  if (modeCfg.underscoresBreakWords === undefined)
+    modeCfg.underscoresBreakWords = true;
+
+  // Use `fencedCodeBlocks` to configure fenced code blocks. false to
+  // disable, string to specify a precise regexp that the fence should
+  // match, and true to allow three or more backticks or tildes (as
+  // per CommonMark).
+
+  // Turn on task lists? ("- [ ] " and "- [x] ")
+  if (modeCfg.taskLists === undefined) modeCfg.taskLists = false;
+
+  // Turn on strikethrough syntax
+  if (modeCfg.strikethrough === undefined)
+    modeCfg.strikethrough = false;
+
+  // Allow token types to be overridden by user-provided token types.
+  if (modeCfg.tokenTypeOverrides === undefined)
+    modeCfg.tokenTypeOverrides = {};
+
+  var tokenTypes = {
+    header: "header",
+    code: "comment",
+    quote: "quote",
+    list1: "variable-2",
+    list2: "variable-3",
+    list3: "keyword",
+    hr: "hr",
+    image: "image",
+    imageAltText: "image-alt-text",
+    imageMarker: "image-marker",
+    formatting: "formatting",
+    linkInline: "link",
+    linkEmail: "link",
+    linkText: "link",
+    linkHref: "string",
+    em: "em",
+    strong: "strong",
+    strikethrough: "strikethrough"
+  };
+
+  for (var tokenType in tokenTypes) {
+    if (tokenTypes.hasOwnProperty(tokenType) && modeCfg.tokenTypeOverrides[tokenType]) {
+      tokenTypes[tokenType] = modeCfg.tokenTypeOverrides[tokenType];
+    }
+  }
+
+  var hrRE = /^([*\-_])(?:\s*\1){2,}\s*$/
+  ,   listRE = /^(?:[*\-+]|^[0-9]+([.)]))\s+/
+  ,   taskListRE = /^\[(x| )\](?=\s)/ // Must follow listRE
+  ,   atxHeaderRE = modeCfg.allowAtxHeaderWithoutSpace ? /^(#+)/ : /^(#+)(?: |$)/
+  ,   setextHeaderRE = /^ *(?:\={1,}|-{1,})\s*$/
+  ,   textRE = /^[^#!\[\]*_\\<>` "'(~]+/
+  ,   fencedCodeRE = new RegExp("^(" + (modeCfg.fencedCodeBlocks === true ? "~~~+|```+" : modeCfg.fencedCodeBlocks) +
+                                ")[ \\t]*([\\w+#\-]*)");
+
+  function switchInline(stream, state, f) {
+    state.f = state.inline = f;
+    return f(stream, state);
+  }
+
+  function switchBlock(stream, state, f) {
+    state.f = state.block = f;
+    return f(stream, state);
+  }
+
+  function lineIsEmpty(line) {
+    return !line || !/\S/.test(line.string)
+  }
+
+  // Blocks
+
+  function blankLine(state) {
+    // Reset linkTitle state
+    state.linkTitle = false;
+    // Reset EM state
+    state.em = false;
+    // Reset STRONG state
+    state.strong = false;
+    // Reset strikethrough state
+    state.strikethrough = false;
+    // Reset state.quote
+    state.quote = 0;
+    // Reset state.indentedCode
+    state.indentedCode = false;
+    if (state.f == htmlBlock) {
+      state.f = inlineNormal;
+      state.block = blockNormal;
+    }
+    // Reset state.trailingSpace
+    state.trailingSpace = 0;
+    state.trailingSpaceNewLine = false;
+    // Mark this line as blank
+    state.prevLine = state.thisLine
+    state.thisLine = null
+    return null;
+  }
+
+  function blockNormal(stream, state) {
+
+    var sol = stream.sol();
+
+    var prevLineIsList = state.list !== false,
+        prevLineIsIndentedCode = state.indentedCode;
+
+    state.indentedCode = false;
+
+    if (prevLineIsList) {
+      if (state.indentationDiff >= 0) { // Continued list
+        if (state.indentationDiff < 4) { // Only adjust indentation if *not* a code block
+          state.indentation -= state.indentationDiff;
+        }
+        state.list = null;
+      } else if (state.indentation > 0) {
+        state.list = null;
+      } else { // No longer a list
+        state.list = false;
+      }
+    }
+
+    var match = null;
+    if (state.indentationDiff >= 4) {
+      stream.skipToEnd();
+      if (prevLineIsIndentedCode || lineIsEmpty(state.prevLine)) {
+        state.indentation -= 4;
+        state.indentedCode = true;
+        return tokenTypes.code;
+      } else {
+        return null;
+      }
+    } else if (stream.eatSpace()) {
+      return null;
+    } else if ((match = stream.match(atxHeaderRE)) && match[1].length <= 6) {
+      state.header = match[1].length;
+      if (modeCfg.highlightFormatting) state.formatting = "header";
+      state.f = state.inline;
+      return getType(state);
+    } else if (!lineIsEmpty(state.prevLine) && !state.quote && !prevLineIsList &&
+               !prevLineIsIndentedCode && (match = stream.match(setextHeaderRE))) {
+      state.header = match[0].charAt(0) == '=' ? 1 : 2;
+      if (modeCfg.highlightFormatting) state.formatting = "header";
+      state.f = state.inline;
+      return getType(state);
+    } else if (stream.eat('>')) {
+      state.quote = sol ? 1 : state.quote + 1;
+      if (modeCfg.highlightFormatting) state.formatting = "quote";
+      stream.eatSpace();
+      return getType(state);
+    } else if (stream.peek() === '[') {
+      return switchInline(stream, state, footnoteLink);
+    } else if (stream.match(hrRE, true)) {
+      state.hr = true;
+      return tokenTypes.hr;
+    } else if (match = stream.match(listRE)) {
+      var listType = match[1] ? "ol" : "ul";
+      state.indentation = stream.column() + stream.current().length;
+      state.list = true;
+
+      // While this list item's marker's indentation
+      // is less than the deepest list item's content's indentation,
+      // pop the deepest list item indentation off the stack.
+      while (state.listStack && stream.column() < state.listStack[state.listStack.length - 1]) {
+        state.listStack.pop();
+      }
+
+      // Add this list item's content's indentation to the stack
+      state.listStack.push(state.indentation);
+
+      if (modeCfg.taskLists && stream.match(taskListRE, false)) {
+        state.taskList = true;
+      }
+      state.f = state.inline;
+      if (modeCfg.highlightFormatting) state.formatting = ["list", "list-" + listType];
+      return getType(state);
+    } else if (modeCfg.fencedCodeBlocks && (match = stream.match(fencedCodeRE, true))) {
+      state.fencedChars = match[1]
+      // try switching mode
+      state.localMode = getMode(match[2]);
+      if (state.localMode) state.localState = CodeMirror.startState(state.localMode);
+      state.f = state.block = local;
+      if (modeCfg.highlightFormatting) state.formatting = "code-block";
+      state.code = -1
+      return getType(state);
+    }
+
+    return switchInline(stream, state, state.inline);
+  }
+
+  function htmlBlock(stream, state) {
+    var style = htmlMode.token(stream, state.htmlState);
+    if (!htmlModeMissing) {
+      var inner = CodeMirror.innerMode(htmlMode, state.htmlState)
+      if ((inner.mode.name == "xml" && inner.state.tagStart === null &&
+           (!inner.state.context && inner.state.tokenize.isInText)) ||
+          (state.md_inside && stream.current().indexOf(">") > -1)) {
+        state.f = inlineNormal;
+        state.block = blockNormal;
+        state.htmlState = null;
+      }
+    }
+    return style;
+  }
+
+  function local(stream, state) {
+    if (state.fencedChars && stream.match(state.fencedChars)) {
+      if (modeCfg.highlightFormatting) state.formatting = "code-block";
+      var returnType = getType(state)
+      state.localMode = state.localState = null;
+      state.block = blockNormal;
+      state.f = inlineNormal;
+      state.fencedChars = null;
+      state.code = 0
+      return returnType;
+    } else if (state.fencedChars && stream.skipTo(state.fencedChars)) {
+      return "comment"
+    } else if (state.localMode) {
+      return state.localMode.token(stream, state.localState);
+    } else {
+      stream.skipToEnd();
+      return tokenTypes.code;
+    }
+  }
+
+  // Inline
+  function getType(state) {
+    var styles = [];
+
+    if (state.formatting) {
+      styles.push(tokenTypes.formatting);
+
+      if (typeof state.formatting === "string") state.formatting = [state.formatting];
+
+      for (var i = 0; i < state.formatting.length; i++) {
+        styles.push(tokenTypes.formatting + "-" + state.formatting[i]);
+
+        if (state.formatting[i] === "header") {
+          styles.push(tokenTypes.formatting + "-" + state.formatting[i] + "-" + state.header);
+        }
+
+        // Add `formatting-quote` and `formatting-quote-#` for blockquotes
+        // Add `error` instead if the maximum blockquote nesting depth is passed
+        if (state.formatting[i] === "quote") {
+          if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {
+            styles.push(tokenTypes.formatting + "-" + state.formatting[i] + "-" + state.quote);
+          } else {
+            styles.push("error");
+          }
+        }
+      }
+    }
+
+    if (state.taskOpen) {
+      styles.push("meta");
+      return styles.length ? styles.join(' ') : null;
+    }
+    if (state.taskClosed) {
+      styles.push("property");
+      return styles.length ? styles.join(' ') : null;
+    }
+
+    if (state.linkHref) {
+      styles.push(tokenTypes.linkHref, "url");
+    } else { // Only apply inline styles to non-url text
+      if (state.strong) { styles.push(tokenTypes.strong); }
+      if (state.em) { styles.push(tokenTypes.em); }
+      if (state.strikethrough) { styles.push(tokenTypes.strikethrough); }
+      if (state.linkText) { styles.push(tokenTypes.linkText); }
+      if (state.code) { styles.push(tokenTypes.code); }
+      if (state.image) { styles.push(tokenTypes.image); }
+      if (state.imageAltText) { styles.push(tokenTypes.imageAltText, "link"); }
+      if (state.imageMarker) { styles.push(tokenTypes.imageMarker); }
+    }
+
+    if (state.header) { styles.push(tokenTypes.header, tokenTypes.header + "-" + state.header); }
+
+    if (state.quote) {
+      styles.push(tokenTypes.quote);
+
+      // Add `quote-#` where the maximum for `#` is modeCfg.maxBlockquoteDepth
+      if (!modeCfg.maxBlockquoteDepth || modeCfg.maxBlockquoteDepth >= state.quote) {
+        styles.push(tokenTypes.quote + "-" + state.quote);
+      } else {
+        styles.push(tokenTypes.quote + "-" + modeCfg.maxBlockquoteDepth);
+      }
+    }
+
+    if (state.list !== false) {
+      var listMod = (state.listStack.length - 1) % 3;
+      if (!listMod) {
+        styles.push(tokenTypes.list1);
+      } else if (listMod === 1) {
+        styles.push(tokenTypes.list2);
+      } else {
+        styles.push(tokenTypes.list3);
+      }
+    }
+
+    if (state.trailingSpaceNewLine) {
+      styles.push("trailing-space-new-line");
+    } else if (state.trailingSpace) {
+      styles.push("trailing-space-" + (state.trailingSpace % 2 ? "a" : "b"));
+    }
+
+    return styles.length ? styles.join(' ') : null;
+  }
+
+  function handleText(stream, state) {
+    if (stream.match(textRE, true)) {
+      return getType(state);
+    }
+    return undefined;
+  }
+
+  function inlineNormal(stream, state) {
+    var style = state.text(stream, state);
+    if (typeof style !== 'undefined')
+      return style;
+
+    if (state.list) { // List marker (*, +, -, 1., etc)
+      state.list = null;
+      return getType(state);
+    }
+
+    if (state.taskList) {
+      var taskOpen = stream.match(taskListRE, true)[1] !== "x";
+      if (taskOpen) state.taskOpen = true;
+      else state.taskClosed = true;
+      if (modeCfg.highlightFormatting) state.formatting = "task";
+      state.taskList = false;
+      return getType(state);
+    }
+
+    state.taskOpen = false;
+    state.taskClosed = false;
+
+    if (state.header && stream.match(/^#+$/, true)) {
+      if (modeCfg.highlightFormatting) state.formatting = "header";
+      return getType(state);
+    }
+
+    // Get sol() value now, before character is consumed
+    var sol = stream.sol();
+
+    var ch = stream.next();
+
+    // Matches link titles present on next line
+    if (state.linkTitle) {
+      state.linkTitle = false;
+      var matchCh = ch;
+      if (ch === '(') {
+        matchCh = ')';
+      }
+      matchCh = (matchCh+'').replace(/([.?*+^$[\]\\(){}|-])/g, "\\$1");
+      var regex = '^\\s*(?:[^' + matchCh + '\\\\]+|\\\\\\\\|\\\\.)' + matchCh;
+      if (stream.match(new RegExp(regex), true)) {
+        return tokenTypes.linkHref;
+      }
+    }
+
+    // If this block is changed, it may need to be updated in GFM mode
+    if (ch === '`') {
+      var previousFormatting = state.formatting;
+      if (modeCfg.highlightFormatting) state.formatting = "code";
+      stream.eatWhile('`');
+      var count = stream.current().length
+      if (state.code == 0) {
+        state.code = count
+        return getType(state)
+      } else if (count == state.code) { // Must be exact
+        var t = getType(state)
+        state.code = 0
+        return t
+      } else {
+        state.formatting = previousFormatting
+        return getType(state)
+      }
+    } else if (state.code) {
+      return getType(state);
+    }
+
+    if (ch === '\\') {
+      stream.next();
+      if (modeCfg.highlightFormatting) {
+        var type = getType(state);
+        var formattingEscape = tokenTypes.formatting + "-escape";
+        return type ? type + " " + formattingEscape : formattingEscape;
+      }
+    }
+
+    if (ch === '!' && stream.match(/\[[^\]]*\] ?(?:\(|\[)/, false)) {
+      state.imageMarker = true;
+      state.image = true;
+      if (modeCfg.highlightFormatting) state.formatting = "image";
+      return getType(state);
+    }
+
+    if (ch === '[' && state.imageMarker && stream.match(/[^\]]*\](\(.*?\)| ?\[.*?\])/, false)) {
+      state.imageMarker = false;
+      state.imageAltText = true
+      if (modeCfg.highlightFormatting) state.formatting = "image";
+      return getType(state);
+    }
+
+    if (ch === ']' && state.imageAltText) {
+      if (modeCfg.highlightFormatting) state.formatting = "image";
+      var type = getType(state);
+      state.imageAltText = false;
+      state.image = false;
+      state.inline = state.f = linkHref;
+      return type;
+    }
+
+    if (ch === '[' && stream.match(/[^\]]*\](\(.*\)| ?\[.*?\])/, false) && !state.image) {
+      state.linkText = true;
+      if (modeCfg.highlightFormatting) state.formatting = "link";
+      return getType(state);
+    }
+
+    if (ch === ']' && state.linkText && stream.match(/\(.*?\)| ?\[.*?\]/, false)) {
+      if (modeCfg.highlightFormatting) state.formatting = "link";
+      var type = getType(state);
+      state.linkText = false;
+      state.inline = state.f = linkHref;
+      return type;
+    }
+
+    if (ch === '<' && stream.match(/^(https?|ftps?):\/\/(?:[^\\>]|\\.)+>/, false)) {
+      state.f = state.inline = linkInline;
+      if (modeCfg.highlightFormatting) state.formatting = "link";
+      var type = getType(state);
+      if (type){
+        type += " ";
+      } else {
+        type = "";
+      }
+      return type + tokenTypes.linkInline;
+    }
+
+    if (ch === '<' && stream.match(/^[^> \\]+@(?:[^\\>]|\\.)+>/, false)) {
+      state.f = state.inline = linkInline;
+      if (modeCfg.highlightFormatting) state.formatting = "link";
+      var type = getType(state);
+      if (type){
+        type += " ";
+      } else {
+        type = "";
+      }
+      return type + tokenTypes.linkEmail;
+    }
+
+    if (ch === '<' && stream.match(/^(!--|[a-z]+(?:\s+[a-z_:.\-]+(?:\s*=\s*[^ >]+)?)*\s*>)/i, false)) {
+      var end = stream.string.indexOf(">", stream.pos);
+      if (end != -1) {
+        var atts = stream.string.substring(stream.start, end);
+        if (/markdown\s*=\s*('|"){0,1}1('|"){0,1}/.test(atts)) state.md_inside = true;
+      }
+      stream.backUp(1);
+      state.htmlState = CodeMirror.startState(htmlMode);
+      return switchBlock(stream, state, htmlBlock);
+    }
+
+    if (ch === '<' && stream.match(/^\/\w*?>/)) {
+      state.md_inside = false;
+      return "tag";
+    }
+
+    var ignoreUnderscore = false;
+    if (!modeCfg.underscoresBreakWords) {
+      if (ch === '_' && stream.peek() !== '_' && stream.match(/(\w)/, false)) {
+        var prevPos = stream.pos - 2;
+        if (prevPos >= 0) {
+          var prevCh = stream.string.charAt(prevPos);
+          if (prevCh !== '_' && prevCh.match(/(\w)/, false)) {
+            ignoreUnderscore = true;
+          }
+        }
+      }
+    }
+    if (ch === '*' || (ch === '_' && !ignoreUnderscore)) {
+      if (sol && stream.peek() === ' ') {
+        // Do nothing, surrounded by newline and space
+      } else if (state.strong === ch && stream.eat(ch)) { // Remove STRONG
+        if (modeCfg.highlightFormatting) state.formatting = "strong";
+        var t = getType(state);
+        state.strong = false;
+        return t;
+      } else if (!state.strong && stream.eat(ch)) { // Add STRONG
+        state.strong = ch;
+        if (modeCfg.highlightFormatting) state.formatting = "strong";
+        return getType(state);
+      } else if (state.em === ch) { // Remove EM
+        if (modeCfg.highlightFormatting) state.formatting = "em";
+        var t = getType(state);
+        state.em = false;
+        return t;
+      } else if (!state.em) { // Add EM
+        state.em = ch;
+        if (modeCfg.highlightFormatting) state.formatting = "em";
+        return getType(state);
+      }
+    } else if (ch === ' ') {
+      if (stream.eat('*') || stream.eat('_')) { // Probably surrounded by spaces
+        if (stream.peek() === ' ') { // Surrounded by spaces, ignore
+          return getType(state);
+        } else { // Not surrounded by spaces, back up pointer
+          stream.backUp(1);
+        }
+      }
+    }
+
+    if (modeCfg.strikethrough) {
+      if (ch === '~' && stream.eatWhile(ch)) {
+        if (state.strikethrough) {// Remove strikethrough
+          if (modeCfg.highlightFormatting) state.formatting = "strikethrough";
+          var t = getType(state);
+          state.strikethrough = false;
+          return t;
+        } else if (stream.match(/^[^\s]/, false)) {// Add strikethrough
+          state.strikethrough = true;
+          if (modeCfg.highlightFormatting) state.formatting = "strikethrough";
+          return getType(state);
+        }
+      } else if (ch === ' ') {
+        if (stream.match(/^~~/, true)) { // Probably surrounded by space
+          if (stream.peek() === ' ') { // Surrounded by spaces, ignore
+            return getType(state);
+          } else { // Not surrounded by spaces, back up pointer
+            stream.backUp(2);
+          }
+        }
+      }
+    }
+
+    if (ch === ' ') {
+      if (stream.match(/ +$/, false)) {
+        state.trailingSpace++;
+      } else if (state.trailingSpace) {
+        state.trailingSpaceNewLine = true;
+      }
+    }
+
+    return getType(state);
+  }
+
+  function linkInline(stream, state) {
+    var ch = stream.next();
+
+    if (ch === ">") {
+      state.f = state.inline = inlineNormal;
+      if (modeCfg.highlightFormatting) state.formatting = "link";
+      var type = getType(state);
+      if (type){
+        type += " ";
+      } else {
+        type = "";
+      }
+      return type + tokenTypes.linkInline;
+    }
+
+    stream.match(/^[^>]+/, true);
+
+    return tokenTypes.linkInline;
+  }
+
+  function linkHref(stream, state) {
+    // Check if space, and return NULL if so (to avoid marking the space)
+    if(stream.eatSpace()){
+      return null;
+    }
+    var ch = stream.next();
+    if (ch === '(' || ch === '[') {
+      state.f = state.inline = getLinkHrefInside(ch === "(" ? ")" : "]", 0);
+      if (modeCfg.highlightFormatting) state.formatting = "link-string";
+      state.linkHref = true;
+      return getType(state);
+    }
+    return 'error';
+  }
+
+  var linkRE = {
+    ")": /^(?:[^\\\(\)]|\\.|\((?:[^\\\(\)]|\\.)*\))*?(?=\))/,
+    "]": /^(?:[^\\\[\]]|\\.|\[(?:[^\\\[\\]]|\\.)*\])*?(?=\])/
+  }
+
+  function getLinkHrefInside(endChar) {
+    return function(stream, state) {
+      var ch = stream.next();
+
+      if (ch === endChar) {
+        state.f = state.inline = inlineNormal;
+        if (modeCfg.highlightFormatting) state.formatting = "link-string";
+        var returnState = getType(state);
+        state.linkHref = false;
+        return returnState;
+      }
+
+      stream.match(linkRE[endChar])
+      state.linkHref = true;
+      return getType(state);
+    };
+  }
+
+  function footnoteLink(stream, state) {
+    if (stream.match(/^([^\]\\]|\\.)*\]:/, false)) {
+      state.f = footnoteLinkInside;
+      stream.next(); // Consume [
+      if (modeCfg.highlightFormatting) state.formatting = "link";
+      state.linkText = true;
+      return getType(state);
+    }
+    return switchInline(stream, state, inlineNormal);
+  }
+
+  function footnoteLinkInside(stream, state) {
+    if (stream.match(/^\]:/, true)) {
+      state.f = state.inline = footnoteUrl;
+      if (modeCfg.highlightFormatting) state.formatting = "link";
+      var returnType = getType(state);
+      state.linkText = false;
+      return returnType;
+    }
+
+    stream.match(/^([^\]\\]|\\.)+/, true);
+
+    return tokenTypes.linkText;
+  }
+
+  function footnoteUrl(stream, state) {
+    // Check if space, and return NULL if so (to avoid marking the space)
+    if(stream.eatSpace()){
+      return null;
+    }
+    // Match URL
+    stream.match(/^[^\s]+/, true);
+    // Check for link title
+    if (stream.peek() === undefined) { // End of line, set flag to check next line
+      state.linkTitle = true;
+    } else { // More content on line, check if link title
+      stream.match(/^(?:\s+(?:"(?:[^"\\]|\\\\|\\.)+"|'(?:[^'\\]|\\\\|\\.)+'|\((?:[^)\\]|\\\\|\\.)+\)))?/, true);
+    }
+    state.f = state.inline = inlineNormal;
+    return tokenTypes.linkHref + " url";
+  }
+
+  var mode = {
+    startState: function() {
+      return {
+        f: blockNormal,
+
+        prevLine: null,
+        thisLine: null,
+
+        block: blockNormal,
+        htmlState: null,
+        indentation: 0,
+
+        inline: inlineNormal,
+        text: handleText,
+
+        formatting: false,
+        linkText: false,
+        linkHref: false,
+        linkTitle: false,
+        code: 0,
+        em: false,
+        strong: false,
+        header: 0,
+        hr: false,
+        taskList: false,
+        list: false,
+        listStack: [],
+        quote: 0,
+        trailingSpace: 0,
+        trailingSpaceNewLine: false,
+        strikethrough: false,
+        fencedChars: null
+      };
+    },
+
+    copyState: function(s) {
+      return {
+        f: s.f,
+
+        prevLine: s.prevLine,
+        thisLine: s.thisLine,
+
+        block: s.block,
+        htmlState: s.htmlState && CodeMirror.copyState(htmlMode, s.htmlState),
+        indentation: s.indentation,
+
+        localMode: s.localMode,
+        localState: s.localMode ? CodeMirror.copyState(s.localMode, s.localState) : null,
+
+        inline: s.inline,
+        text: s.text,
+        formatting: false,
+        linkTitle: s.linkTitle,
+        code: s.code,
+        em: s.em,
+        strong: s.strong,
+        strikethrough: s.strikethrough,
+        header: s.header,
+        hr: s.hr,
+        taskList: s.taskList,
+        list: s.list,
+        listStack: s.listStack.slice(0),
+        quote: s.quote,
+        indentedCode: s.indentedCode,
+        trailingSpace: s.trailingSpace,
+        trailingSpaceNewLine: s.trailingSpaceNewLine,
+        md_inside: s.md_inside,
+        fencedChars: s.fencedChars
+      };
+    },
+
+    token: function(stream, state) {
+
+      // Reset state.formatting
+      state.formatting = false;
+
+      if (stream != state.thisLine) {
+        var forceBlankLine = state.header || state.hr;
+
+        // Reset state.header and state.hr
+        state.header = 0;
+        state.hr = false;
+
+        if (stream.match(/^\s*$/, true) || forceBlankLine) {
+          blankLine(state);
+          if (!forceBlankLine) return null
+          state.prevLine = null
+        }
+
+        state.prevLine = state.thisLine
+        state.thisLine = stream
+
+        // Reset state.taskList
+        state.taskList = false;
+
+        // Reset state.trailingSpace
+        state.trailingSpace = 0;
+        state.trailingSpaceNewLine = false;
+
+        state.f = state.block;
+        var indentation = stream.match(/^\s*/, true)[0].replace(/\t/g, '    ').length;
+        state.indentationDiff = Math.min(indentation - state.indentation, 4);
+        state.indentation = state.indentation + state.indentationDiff;
+        if (indentation > 0) return null;
+      }
+      return state.f(stream, state);
+    },
+
+    innerMode: function(state) {
+      if (state.block == htmlBlock) return {state: state.htmlState, mode: htmlMode};
+      if (state.localState) return {state: state.localState, mode: state.localMode};
+      return {state: state, mode: mode};
+    },
+
+    blankLine: blankLine,
+
+    getType: getType,
+
+    closeBrackets: "()[]{}''\"\"``",
+    fold: "markdown"
+  };
+  return mode;
+}, "xml");
+
+CodeMirror.defineMIME("text/x-markdown", "markdown");
+
+});
diff --git a/public/codemirror/mode/markdown/test.js b/public/codemirror/mode/markdown/test.js
new file mode 100644
index 000000000..37ecb4bbf
--- /dev/null
+++ b/public/codemirror/mode/markdown/test.js
@@ -0,0 +1,989 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({tabSize: 4}, "markdown");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)); }
+  var modeHighlightFormatting = CodeMirror.getMode({tabSize: 4}, {name: "markdown", highlightFormatting: true});
+  function FT(name) { test.mode(name, modeHighlightFormatting, Array.prototype.slice.call(arguments, 1)); }
+  var modeAtxNoSpace = CodeMirror.getMode({tabSize: 4}, {name: "markdown", allowAtxHeaderWithoutSpace: true});
+  function AtxNoSpaceTest(name) { test.mode(name, modeAtxNoSpace, Array.prototype.slice.call(arguments, 1)); }
+  var modeFenced = CodeMirror.getMode({tabSize: 4}, {name: "markdown", fencedCodeBlocks: true});
+  function FencedTest(name) { test.mode(name, modeFenced, Array.prototype.slice.call(arguments, 1)); }
+  var modeOverrideClasses = CodeMirror.getMode({tabsize: 4}, {
+    name: "markdown",
+    strikethrough: true,
+    tokenTypeOverrides: {
+      "header" : "override-header",
+      "code" : "override-code",
+      "quote" : "override-quote",
+      "list1" : "override-list1",
+      "list2" : "override-list2",
+      "list3" : "override-list3",
+      "hr" : "override-hr",
+      "image" : "override-image",
+      "imageAltText": "override-image-alt-text",
+      "imageMarker": "override-image-marker",
+      "linkInline" : "override-link-inline",
+      "linkEmail" : "override-link-email",
+      "linkText" : "override-link-text",
+      "linkHref" : "override-link-href",
+      "em" : "override-em",
+      "strong" : "override-strong",
+      "strikethrough" : "override-strikethrough"
+  }});
+  function TokenTypeOverrideTest(name) { test.mode(name, modeOverrideClasses, Array.prototype.slice.call(arguments, 1)); }
+  var modeFormattingOverride = CodeMirror.getMode({tabsize: 4}, {
+    name: "markdown",
+    highlightFormatting: true,
+    tokenTypeOverrides: {
+      "formatting" : "override-formatting"
+  }});
+  function FormatTokenTypeOverrideTest(name) { test.mode(name, modeFormattingOverride, Array.prototype.slice.call(arguments, 1)); }
+
+
+  FT("formatting_emAsterisk",
+     "[em&formatting&formatting-em *][em foo][em&formatting&formatting-em *]");
+
+  FT("formatting_emUnderscore",
+     "[em&formatting&formatting-em _][em foo][em&formatting&formatting-em _]");
+
+  FT("formatting_strongAsterisk",
+     "[strong&formatting&formatting-strong **][strong foo][strong&formatting&formatting-strong **]");
+
+  FT("formatting_strongUnderscore",
+     "[strong&formatting&formatting-strong __][strong foo][strong&formatting&formatting-strong __]");
+
+  FT("formatting_codeBackticks",
+     "[comment&formatting&formatting-code `][comment foo][comment&formatting&formatting-code `]");
+
+  FT("formatting_doubleBackticks",
+     "[comment&formatting&formatting-code ``][comment foo ` bar][comment&formatting&formatting-code ``]");
+
+  FT("formatting_atxHeader",
+     "[header&header-1&formatting&formatting-header&formatting-header-1 # ][header&header-1 foo # bar ][header&header-1&formatting&formatting-header&formatting-header-1 #]");
+
+  FT("formatting_setextHeader",
+     "foo",
+     "[header&header-1&formatting&formatting-header&formatting-header-1 =]");
+
+  FT("formatting_blockquote",
+     "[quote"e-1&formatting&formatting-quote&formatting-quote-1 > ][quote"e-1 foo]");
+
+  FT("formatting_list",
+     "[variable-2&formatting&formatting-list&formatting-list-ul - ][variable-2 foo]");
+  FT("formatting_list",
+     "[variable-2&formatting&formatting-list&formatting-list-ol 1. ][variable-2 foo]");
+
+  FT("formatting_link",
+     "[link&formatting&formatting-link [][link foo][link&formatting&formatting-link ]]][string&formatting&formatting-link-string&url (][string&url http://example.com/][string&formatting&formatting-link-string&url )]");
+
+  FT("formatting_linkReference",
+     "[link&formatting&formatting-link [][link foo][link&formatting&formatting-link ]]][string&formatting&formatting-link-string&url [][string&url bar][string&formatting&formatting-link-string&url ]]]",
+     "[link&formatting&formatting-link [][link bar][link&formatting&formatting-link ]]:] [string&url http://example.com/]");
+
+  FT("formatting_linkWeb",
+     "[link&formatting&formatting-link <][link http://example.com/][link&formatting&formatting-link >]");
+
+  FT("formatting_linkEmail",
+     "[link&formatting&formatting-link <][link user@example.com][link&formatting&formatting-link >]");
+
+  FT("formatting_escape",
+     "[formatting-escape \\*]");
+
+  FT("formatting_image",
+     "[formatting&formatting-image&image&image-marker !][formatting&formatting-image&image&image-alt-text&link [[][image&image-alt-text&link alt text][formatting&formatting-image&image&image-alt-text&link ]]][formatting&formatting-link-string&string&url (][url&string http://link.to/image.jpg][formatting&formatting-link-string&string&url )]");
+
+  MT("plainText",
+     "foo");
+
+  // Don't style single trailing space
+  MT("trailingSpace1",
+     "foo ");
+
+  // Two or more trailing spaces should be styled with line break character
+  MT("trailingSpace2",
+     "foo[trailing-space-a  ][trailing-space-new-line  ]");
+
+  MT("trailingSpace3",
+     "foo[trailing-space-a  ][trailing-space-b  ][trailing-space-new-line  ]");
+
+  MT("trailingSpace4",
+     "foo[trailing-space-a  ][trailing-space-b  ][trailing-space-a  ][trailing-space-new-line  ]");
+
+  // Code blocks using 4 spaces (regardless of CodeMirror.tabSize value)
+  MT("codeBlocksUsing4Spaces",
+     "    [comment foo]");
+
+  // Code blocks using 4 spaces with internal indentation
+  MT("codeBlocksUsing4SpacesIndentation",
+     "    [comment bar]",
+     "        [comment hello]",
+     "            [comment world]",
+     "    [comment foo]",
+     "bar");
+
+  // Code blocks should end even after extra indented lines
+  MT("codeBlocksWithTrailingIndentedLine",
+     "    [comment foo]",
+     "        [comment bar]",
+     "    [comment baz]",
+     "    ",
+     "hello");
+
+  // Code blocks using 1 tab (regardless of CodeMirror.indentWithTabs value)
+  MT("codeBlocksUsing1Tab",
+     "\t[comment foo]");
+
+  // No code blocks directly after paragraph
+  // http://spec.commonmark.org/0.19/#example-65
+  MT("noCodeBlocksAfterParagraph",
+     "Foo",
+     "    Bar");
+
+  // Inline code using backticks
+  MT("inlineCodeUsingBackticks",
+     "foo [comment `bar`]");
+
+  // Block code using single backtick (shouldn't work)
+  MT("blockCodeSingleBacktick",
+     "[comment `]",
+     "[comment foo]",
+     "[comment `]");
+
+  // Unclosed backticks
+  // Instead of simply marking as CODE, it would be nice to have an
+  // incomplete flag for CODE, that is styled slightly different.
+  MT("unclosedBackticks",
+     "foo [comment `bar]");
+
+  // Per documentation: "To include a literal backtick character within a
+  // code span, you can use multiple backticks as the opening and closing
+  // delimiters"
+  MT("doubleBackticks",
+     "[comment ``foo ` bar``]");
+
+  // Tests based on Dingus
+  // http://daringfireball.net/projects/markdown/dingus
+  //
+  // Multiple backticks within an inline code block
+  MT("consecutiveBackticks",
+     "[comment `foo```bar`]");
+
+  // Multiple backticks within an inline code block with a second code block
+  MT("consecutiveBackticks",
+     "[comment `foo```bar`] hello [comment `world`]");
+
+  // Unclosed with several different groups of backticks
+  MT("unclosedBackticks",
+     "[comment ``foo ``` bar` hello]");
+
+  // Closed with several different groups of backticks
+  MT("closedBackticks",
+     "[comment ``foo ``` bar` hello``] world");
+
+  // atx headers
+  // http://daringfireball.net/projects/markdown/syntax#header
+
+  MT("atxH1",
+     "[header&header-1 # foo]");
+
+  MT("atxH2",
+     "[header&header-2 ## foo]");
+
+  MT("atxH3",
+     "[header&header-3 ### foo]");
+
+  MT("atxH4",
+     "[header&header-4 #### foo]");
+
+  MT("atxH5",
+     "[header&header-5 ##### foo]");
+
+  MT("atxH6",
+     "[header&header-6 ###### foo]");
+
+  // http://spec.commonmark.org/0.19/#example-24
+  MT("noAtxH7",
+     "####### foo");
+
+  // http://spec.commonmark.org/0.19/#example-25
+  MT("noAtxH1WithoutSpace",
+     "#5 bolt");
+
+  // CommonMark requires a space after # but most parsers don't
+  AtxNoSpaceTest("atxNoSpaceAllowed_H1NoSpace",
+     "[header&header-1 #foo]");
+
+  AtxNoSpaceTest("atxNoSpaceAllowed_H4NoSpace",
+     "[header&header-4 ####foo]");
+
+  AtxNoSpaceTest("atxNoSpaceAllowed_H1Space",
+     "[header&header-1 # foo]");
+
+  // Inline styles should be parsed inside headers
+  MT("atxH1inline",
+     "[header&header-1 # foo ][header&header-1&em *bar*]");
+
+  // Setext headers - H1, H2
+  // Per documentation, "Any number of underlining =’s or -’s will work."
+  // http://daringfireball.net/projects/markdown/syntax#header
+  // Ideally, the text would be marked as `header` as well, but this is
+  // not really feasible at the moment. So, instead, we're testing against
+  // what works today, to avoid any regressions.
+  //
+  // Check if single underlining = works
+  MT("setextH1",
+     "foo",
+     "[header&header-1 =]");
+
+  // Check if 3+ ='s work
+  MT("setextH1",
+     "foo",
+     "[header&header-1 ===]");
+
+  // Check if single underlining - works
+  MT("setextH2",
+     "foo",
+     "[header&header-2 -]");
+
+  // Check if 3+ -'s work
+  MT("setextH2",
+     "foo",
+     "[header&header-2 ---]");
+
+  // http://spec.commonmark.org/0.19/#example-45
+  MT("setextH2AllowSpaces",
+     "foo",
+     "   [header&header-2 ----      ]");
+
+  // http://spec.commonmark.org/0.19/#example-44
+  MT("noSetextAfterIndentedCodeBlock",
+     "     [comment foo]",
+     "[hr ---]");
+
+  // http://spec.commonmark.org/0.19/#example-51
+  MT("noSetextAfterQuote",
+     "[quote"e-1 > foo]",
+     "[hr ---]");
+
+  MT("noSetextAfterList",
+     "[variable-2 - foo]",
+     "[hr ---]");
+
+  // Single-line blockquote with trailing space
+  MT("blockquoteSpace",
+     "[quote"e-1 > foo]");
+
+  // Single-line blockquote
+  MT("blockquoteNoSpace",
+     "[quote"e-1 >foo]");
+
+  // No blank line before blockquote
+  MT("blockquoteNoBlankLine",
+     "foo",
+     "[quote"e-1 > bar]");
+
+  // Nested blockquote
+  MT("blockquoteSpace",
+     "[quote"e-1 > foo]",
+     "[quote"e-1 >][quote"e-2 > foo]",
+     "[quote"e-1 >][quote"e-2 >][quote"e-3 > foo]");
+
+  // Single-line blockquote followed by normal paragraph
+  MT("blockquoteThenParagraph",
+     "[quote"e-1 >foo]",
+     "",
+     "bar");
+
+  // Multi-line blockquote (lazy mode)
+  MT("multiBlockquoteLazy",
+     "[quote"e-1 >foo]",
+     "[quote"e-1 bar]");
+
+  // Multi-line blockquote followed by normal paragraph (lazy mode)
+  MT("multiBlockquoteLazyThenParagraph",
+     "[quote"e-1 >foo]",
+     "[quote"e-1 bar]",
+     "",
+     "hello");
+
+  // Multi-line blockquote (non-lazy mode)
+  MT("multiBlockquote",
+     "[quote"e-1 >foo]",
+     "[quote"e-1 >bar]");
+
+  // Multi-line blockquote followed by normal paragraph (non-lazy mode)
+  MT("multiBlockquoteThenParagraph",
+     "[quote"e-1 >foo]",
+     "[quote"e-1 >bar]",
+     "",
+     "hello");
+
+  // Header with leading space after continued blockquote (#3287, negative indentation)
+  MT("headerAfterContinuedBlockquote",
+     "[quote"e-1 > foo]",
+     "[quote"e-1 bar]",
+     "",
+     " [header&header-1 # hello]");
+
+  // Check list types
+
+  MT("listAsterisk",
+     "foo",
+     "bar",
+     "",
+     "[variable-2 * foo]",
+     "[variable-2 * bar]");
+
+  MT("listPlus",
+     "foo",
+     "bar",
+     "",
+     "[variable-2 + foo]",
+     "[variable-2 + bar]");
+
+  MT("listDash",
+     "foo",
+     "bar",
+     "",
+     "[variable-2 - foo]",
+     "[variable-2 - bar]");
+
+  MT("listNumber",
+     "foo",
+     "bar",
+     "",
+     "[variable-2 1. foo]",
+     "[variable-2 2. bar]");
+
+  MT("listFromParagraph",
+     "foo",
+     "[variable-2 1. bar]",
+     "[variable-2 2. hello]");
+
+  // List after hr
+  MT("listAfterHr",
+     "[hr ---]",
+     "[variable-2 - bar]");
+
+  // List after header
+  MT("listAfterHeader",
+     "[header&header-1 # foo]",
+     "[variable-2 - bar]");
+
+  // hr after list
+  MT("hrAfterList",
+     "[variable-2 - foo]",
+     "[hr -----]");
+
+  // Formatting in lists (*)
+  MT("listAsteriskFormatting",
+     "[variable-2 * ][variable-2&em *foo*][variable-2  bar]",
+     "[variable-2 * ][variable-2&strong **foo**][variable-2  bar]",
+     "[variable-2 * ][variable-2&strong **][variable-2&em&strong *foo**][variable-2&em *][variable-2  bar]",
+     "[variable-2 * ][variable-2&comment `foo`][variable-2  bar]");
+
+  // Formatting in lists (+)
+  MT("listPlusFormatting",
+     "[variable-2 + ][variable-2&em *foo*][variable-2  bar]",
+     "[variable-2 + ][variable-2&strong **foo**][variable-2  bar]",
+     "[variable-2 + ][variable-2&strong **][variable-2&em&strong *foo**][variable-2&em *][variable-2  bar]",
+     "[variable-2 + ][variable-2&comment `foo`][variable-2  bar]");
+
+  // Formatting in lists (-)
+  MT("listDashFormatting",
+     "[variable-2 - ][variable-2&em *foo*][variable-2  bar]",
+     "[variable-2 - ][variable-2&strong **foo**][variable-2  bar]",
+     "[variable-2 - ][variable-2&strong **][variable-2&em&strong *foo**][variable-2&em *][variable-2  bar]",
+     "[variable-2 - ][variable-2&comment `foo`][variable-2  bar]");
+
+  // Formatting in lists (1.)
+  MT("listNumberFormatting",
+     "[variable-2 1. ][variable-2&em *foo*][variable-2  bar]",
+     "[variable-2 2. ][variable-2&strong **foo**][variable-2  bar]",
+     "[variable-2 3. ][variable-2&strong **][variable-2&em&strong *foo**][variable-2&em *][variable-2  bar]",
+     "[variable-2 4. ][variable-2&comment `foo`][variable-2  bar]");
+
+  // Paragraph lists
+  MT("listParagraph",
+     "[variable-2 * foo]",
+     "",
+     "[variable-2 * bar]");
+
+  // Multi-paragraph lists
+  //
+  // 4 spaces
+  MT("listMultiParagraph",
+     "[variable-2 * foo]",
+     "",
+     "[variable-2 * bar]",
+     "",
+     "    [variable-2 hello]");
+
+  // 4 spaces, extra blank lines (should still be list, per Dingus)
+  MT("listMultiParagraphExtra",
+     "[variable-2 * foo]",
+     "",
+     "[variable-2 * bar]",
+     "",
+     "",
+     "    [variable-2 hello]");
+
+  // 4 spaces, plus 1 space (should still be list, per Dingus)
+  MT("listMultiParagraphExtraSpace",
+     "[variable-2 * foo]",
+     "",
+     "[variable-2 * bar]",
+     "",
+     "     [variable-2 hello]",
+     "",
+     "    [variable-2 world]");
+
+  // 1 tab
+  MT("listTab",
+     "[variable-2 * foo]",
+     "",
+     "[variable-2 * bar]",
+     "",
+     "\t[variable-2 hello]");
+
+  // No indent
+  MT("listNoIndent",
+     "[variable-2 * foo]",
+     "",
+     "[variable-2 * bar]",
+     "",
+     "hello");
+
+  MT("listCommonMarkIndentationCode",
+     "[variable-2 * Code blocks also affect]",
+     "  [variable-3 * The next level starts where the contents start.]",
+     "   [variable-3 *    Anything less than that will keep the item on the same level.]",
+     "       [variable-3 * Each list item can indent the first level further and further.]",
+     "  [variable-3 * For the most part, this makes sense while writing a list.]",
+     "    [keyword * This means two items with same indentation can be different levels.]",
+     "     [keyword *  Each level has an indent requirement that can change between items.]",
+     "       [keyword * A list item that meets this will be part of the next level.]",
+     "   [variable-3 * Otherwise, it will be part of the level where it does meet this.]",
+     " [variable-2 * World]");
+
+  // Blockquote
+  MT("blockquote",
+     "[variable-2 * foo]",
+     "",
+     "[variable-2 * bar]",
+     "",
+     "    [variable-2"e"e-1 > hello]");
+
+  // Code block
+  MT("blockquoteCode",
+     "[variable-2 * foo]",
+     "",
+     "[variable-2 * bar]",
+     "",
+     "        [comment > hello]",
+     "",
+     "    [variable-2 world]");
+
+  // Code block followed by text
+  MT("blockquoteCodeText",
+     "[variable-2 * foo]",
+     "",
+     "    [variable-2 bar]",
+     "",
+     "        [comment hello]",
+     "",
+     "    [variable-2 world]");
+
+  // Nested list
+
+  MT("listAsteriskNested",
+     "[variable-2 * foo]",
+     "",
+     "    [variable-3 * bar]");
+
+  MT("listPlusNested",
+     "[variable-2 + foo]",
+     "",
+     "    [variable-3 + bar]");
+
+  MT("listDashNested",
+     "[variable-2 - foo]",
+     "",
+     "    [variable-3 - bar]");
+
+  MT("listNumberNested",
+     "[variable-2 1. foo]",
+     "",
+     "    [variable-3 2. bar]");
+
+  MT("listMixed",
+     "[variable-2 * foo]",
+     "",
+     "    [variable-3 + bar]",
+     "",
+     "        [keyword - hello]",
+     "",
+     "            [variable-2 1. world]");
+
+  MT("listBlockquote",
+     "[variable-2 * foo]",
+     "",
+     "    [variable-3 + bar]",
+     "",
+     "        [quote"e-1&variable-3 > hello]");
+
+  MT("listCode",
+     "[variable-2 * foo]",
+     "",
+     "    [variable-3 + bar]",
+     "",
+     "            [comment hello]");
+
+  // Code with internal indentation
+  MT("listCodeIndentation",
+     "[variable-2 * foo]",
+     "",
+     "        [comment bar]",
+     "            [comment hello]",
+     "                [comment world]",
+     "        [comment foo]",
+     "    [variable-2 bar]");
+
+  // List nesting edge cases
+  MT("listNested",
+    "[variable-2 * foo]",
+    "",
+    "    [variable-3 * bar]",
+    "",
+    "       [variable-3 hello]"
+  );
+  MT("listNested",
+    "[variable-2 * foo]",
+    "",
+    "    [variable-3 * bar]",
+    "",
+    "      [keyword * foo]"
+  );
+
+  // Code followed by text
+  MT("listCodeText",
+     "[variable-2 * foo]",
+     "",
+     "        [comment bar]",
+     "",
+     "hello");
+
+  // Following tests directly from official Markdown documentation
+  // http://daringfireball.net/projects/markdown/syntax#hr
+
+  MT("hrSpace",
+     "[hr * * *]");
+
+  MT("hr",
+     "[hr ***]");
+
+  MT("hrLong",
+     "[hr *****]");
+
+  MT("hrSpaceDash",
+     "[hr - - -]");
+
+  MT("hrDashLong",
+     "[hr ---------------------------------------]");
+
+  //Images
+  MT("Images",
+     "[image&image-marker !][image&image-alt-text&link [[alt text]]][string&url (http://link.to/image.jpg)]")
+
+  //Images with highlight alt text
+  MT("imageEm",
+     "[image&image-marker !][image&image-alt-text&link [[][image-alt-text&em&image&link *alt text*][image&image-alt-text&link ]]][string&url (http://link.to/image.jpg)]");
+
+  MT("imageStrong",
+     "[image&image-marker !][image&image-alt-text&link [[][image-alt-text&strong&image&link **alt text**][image&image-alt-text&link ]]][string&url (http://link.to/image.jpg)]");
+
+  MT("imageEmStrong",
+     "[image&image-marker !][image&image-alt-text&link [[][image-alt-text&image&strong&link **][image&image-alt-text&em&strong&link *alt text**][image&image-alt-text&em&link *][image&image-alt-text&link ]]][string&url (http://link.to/image.jpg)]");
+
+  // Inline link with title
+  MT("linkTitle",
+     "[link [[foo]]][string&url (http://example.com/ \"bar\")] hello");
+
+  // Inline link without title
+  MT("linkNoTitle",
+     "[link [[foo]]][string&url (http://example.com/)] bar");
+
+  // Inline link with image
+  MT("linkImage",
+     "[link [[][link&image&image-marker !][link&image&image-alt-text&link [[alt text]]][string&url (http://link.to/image.jpg)][link ]]][string&url (http://example.com/)] bar");
+
+  // Inline link with Em
+  MT("linkEm",
+     "[link [[][link&em *foo*][link ]]][string&url (http://example.com/)] bar");
+
+  // Inline link with Strong
+  MT("linkStrong",
+     "[link [[][link&strong **foo**][link ]]][string&url (http://example.com/)] bar");
+
+  // Inline link with EmStrong
+  MT("linkEmStrong",
+     "[link [[][link&strong **][link&em&strong *foo**][link&em *][link ]]][string&url (http://example.com/)] bar");
+
+  // Image with title
+  MT("imageTitle",
+     "[image&image-marker !][image&image-alt-text&link [[alt text]]][string&url (http://example.com/ \"bar\")] hello");
+
+  // Image without title
+  MT("imageNoTitle",
+     "[image&image-marker !][image&image-alt-text&link [[alt text]]][string&url (http://example.com/)] bar");
+
+  // Image with asterisks
+  MT("imageAsterisks",
+     "[image&image-marker !][image&image-alt-text&link [[ ][image&image-alt-text&em&link *alt text*][image&image-alt-text&link ]]][string&url (http://link.to/image.jpg)] bar");
+
+  // Not a link. Should be normal text due to square brackets being used
+  // regularly in text, especially in quoted material, and no space is allowed
+  // between square brackets and parentheses (per Dingus).
+  MT("notALink",
+     "[[foo]] (bar)");
+
+  // Reference-style links
+  MT("linkReference",
+     "[link [[foo]]][string&url [[bar]]] hello");
+
+  // Reference-style links with Em
+  MT("linkReferenceEm",
+     "[link [[][link&em *foo*][link ]]][string&url [[bar]]] hello");
+
+  // Reference-style links with Strong
+  MT("linkReferenceStrong",
+     "[link [[][link&strong **foo**][link ]]][string&url [[bar]]] hello");
+
+  // Reference-style links with EmStrong
+  MT("linkReferenceEmStrong",
+     "[link [[][link&strong **][link&em&strong *foo**][link&em *][link ]]][string&url [[bar]]] hello");
+
+  // Reference-style links with optional space separator (per documentation)
+  // "You can optionally use a space to separate the sets of brackets"
+  MT("linkReferenceSpace",
+     "[link [[foo]]] [string&url [[bar]]] hello");
+
+  // Should only allow a single space ("...use *a* space...")
+  MT("linkReferenceDoubleSpace",
+     "[[foo]]  [[bar]] hello");
+
+  // Reference-style links with implicit link name
+  MT("linkImplicit",
+     "[link [[foo]]][string&url [[]]] hello");
+
+  // @todo It would be nice if, at some point, the document was actually
+  // checked to see if the referenced link exists
+
+  // Link label, for reference-style links (taken from documentation)
+
+  MT("labelNoTitle",
+     "[link [[foo]]:] [string&url http://example.com/]");
+
+  MT("labelIndented",
+     "   [link [[foo]]:] [string&url http://example.com/]");
+
+  MT("labelSpaceTitle",
+     "[link [[foo bar]]:] [string&url http://example.com/ \"hello\"]");
+
+  MT("labelDoubleTitle",
+     "[link [[foo bar]]:] [string&url http://example.com/ \"hello\"] \"world\"");
+
+  MT("labelTitleDoubleQuotes",
+     "[link [[foo]]:] [string&url http://example.com/  \"bar\"]");
+
+  MT("labelTitleSingleQuotes",
+     "[link [[foo]]:] [string&url http://example.com/  'bar']");
+
+  MT("labelTitleParentheses",
+     "[link [[foo]]:] [string&url http://example.com/  (bar)]");
+
+  MT("labelTitleInvalid",
+     "[link [[foo]]:] [string&url http://example.com/] bar");
+
+  MT("labelLinkAngleBrackets",
+     "[link [[foo]]:] [string&url   \"bar\"]");
+
+  MT("labelTitleNextDoubleQuotes",
+     "[link [[foo]]:] [string&url http://example.com/]",
+     "[string \"bar\"] hello");
+
+  MT("labelTitleNextSingleQuotes",
+     "[link [[foo]]:] [string&url http://example.com/]",
+     "[string 'bar'] hello");
+
+  MT("labelTitleNextParentheses",
+     "[link [[foo]]:] [string&url http://example.com/]",
+     "[string (bar)] hello");
+
+  MT("labelTitleNextMixed",
+     "[link [[foo]]:] [string&url http://example.com/]",
+     "(bar\" hello");
+
+  MT("labelEscape",
+     "[link [[foo \\]] ]]:] [string&url http://example.com/]");
+
+  MT("labelEscapeColon",
+     "[link [[foo \\]]: bar]]:] [string&url http://example.com/]");
+
+  MT("labelEscapeEnd",
+     "[[foo\\]]: http://example.com/");
+
+  MT("linkWeb",
+     "[link ] foo");
+
+  MT("linkWebDouble",
+     "[link ] foo [link ]");
+
+  MT("linkEmail",
+     "[link ] foo");
+
+  MT("linkEmailDouble",
+     "[link ] foo [link ]");
+
+  MT("emAsterisk",
+     "[em *foo*] bar");
+
+  MT("emUnderscore",
+     "[em _foo_] bar");
+
+  MT("emInWordAsterisk",
+     "foo[em *bar*]hello");
+
+  MT("emInWordUnderscore",
+     "foo[em _bar_]hello");
+
+  // Per documentation: "...surround an * or _ with spaces, it’ll be
+  // treated as a literal asterisk or underscore."
+
+  MT("emEscapedBySpaceIn",
+     "foo [em _bar _ hello_] world");
+
+  MT("emEscapedBySpaceOut",
+     "foo _ bar[em _hello_]world");
+
+  MT("emEscapedByNewline",
+     "foo",
+     "_ bar[em _hello_]world");
+
+  // Unclosed emphasis characters
+  // Instead of simply marking as EM / STRONG, it would be nice to have an
+  // incomplete flag for EM and STRONG, that is styled slightly different.
+  MT("emIncompleteAsterisk",
+     "foo [em *bar]");
+
+  MT("emIncompleteUnderscore",
+     "foo [em _bar]");
+
+  MT("strongAsterisk",
+     "[strong **foo**] bar");
+
+  MT("strongUnderscore",
+     "[strong __foo__] bar");
+
+  MT("emStrongAsterisk",
+     "[em *foo][em&strong **bar*][strong hello**] world");
+
+  MT("emStrongUnderscore",
+     "[em _foo][em&strong __bar_][strong hello__] world");
+
+  // "...same character must be used to open and close an emphasis span.""
+  MT("emStrongMixed",
+     "[em _foo][em&strong **bar*hello__ world]");
+
+  MT("emStrongMixed",
+     "[em *foo][em&strong __bar_hello** world]");
+
+  MT("linkWithNestedParens",
+     "[link [[foo]]][string&url (bar(baz))]")
+
+  // These characters should be escaped:
+  // \   backslash
+  // `   backtick
+  // *   asterisk
+  // _   underscore
+  // {}  curly braces
+  // []  square brackets
+  // ()  parentheses
+  // #   hash mark
+  // +   plus sign
+  // -   minus sign (hyphen)
+  // .   dot
+  // !   exclamation mark
+
+  MT("escapeBacktick",
+     "foo \\`bar\\`");
+
+  MT("doubleEscapeBacktick",
+     "foo \\\\[comment `bar\\\\`]");
+
+  MT("escapeAsterisk",
+     "foo \\*bar\\*");
+
+  MT("doubleEscapeAsterisk",
+     "foo \\\\[em *bar\\\\*]");
+
+  MT("escapeUnderscore",
+     "foo \\_bar\\_");
+
+  MT("doubleEscapeUnderscore",
+     "foo \\\\[em _bar\\\\_]");
+
+  MT("escapeHash",
+     "\\# foo");
+
+  MT("doubleEscapeHash",
+     "\\\\# foo");
+
+  MT("escapeNewline",
+     "\\",
+     "[em *foo*]");
+
+  // Class override tests
+  TokenTypeOverrideTest("overrideHeader1",
+    "[override-header&override-header-1 # Foo]");
+
+  TokenTypeOverrideTest("overrideHeader2",
+    "[override-header&override-header-2 ## Foo]");
+
+  TokenTypeOverrideTest("overrideHeader3",
+    "[override-header&override-header-3 ### Foo]");
+
+  TokenTypeOverrideTest("overrideHeader4",
+    "[override-header&override-header-4 #### Foo]");
+
+  TokenTypeOverrideTest("overrideHeader5",
+    "[override-header&override-header-5 ##### Foo]");
+
+  TokenTypeOverrideTest("overrideHeader6",
+    "[override-header&override-header-6 ###### Foo]");
+
+  TokenTypeOverrideTest("overrideCode",
+    "[override-code `foo`]");
+
+  TokenTypeOverrideTest("overrideCodeBlock",
+    "[override-code ```]",
+    "[override-code foo]",
+    "[override-code ```]");
+
+  TokenTypeOverrideTest("overrideQuote",
+    "[override-quote&override-quote-1 > foo]",
+    "[override-quote&override-quote-1 > bar]");
+
+  TokenTypeOverrideTest("overrideQuoteNested",
+    "[override-quote&override-quote-1 > foo]",
+    "[override-quote&override-quote-1 >][override-quote&override-quote-2 > bar]",
+    "[override-quote&override-quote-1 >][override-quote&override-quote-2 >][override-quote&override-quote-3 > baz]");
+
+  TokenTypeOverrideTest("overrideLists",
+    "[override-list1 - foo]",
+    "",
+    "    [override-list2 + bar]",
+    "",
+    "        [override-list3 * baz]",
+    "",
+    "            [override-list1 1. qux]",
+    "",
+    "                [override-list2 - quux]");
+
+  TokenTypeOverrideTest("overrideHr",
+    "[override-hr * * *]");
+
+  TokenTypeOverrideTest("overrideImage",
+    "[override-image&override-image-marker !][override-image&override-image-alt-text&link [[alt text]]][override-link-href&url (http://link.to/image.jpg)]");
+
+  TokenTypeOverrideTest("overrideLinkText",
+    "[override-link-text [[foo]]][override-link-href&url (http://example.com)]");
+
+  TokenTypeOverrideTest("overrideLinkEmailAndInline",
+    "[override-link-email <][override-link-inline foo@example.com>]");
+
+  TokenTypeOverrideTest("overrideEm",
+    "[override-em *foo*]");
+
+  TokenTypeOverrideTest("overrideStrong",
+    "[override-strong **foo**]");
+
+  TokenTypeOverrideTest("overrideStrikethrough",
+    "[override-strikethrough ~~foo~~]");
+
+  FormatTokenTypeOverrideTest("overrideFormatting",
+    "[override-formatting-escape \\*]");
+
+  // Tests to make sure GFM-specific things aren't getting through
+
+  MT("taskList",
+     "[variable-2 * [ ]] bar]");
+
+  MT("noFencedCodeBlocks",
+     "~~~",
+     "foo",
+     "~~~");
+
+  FencedTest("fencedCodeBlocks",
+     "[comment ```]",
+     "[comment foo]",
+     "[comment ```]",
+     "bar");
+
+  FencedTest("fencedCodeBlocksMultipleChars",
+     "[comment `````]",
+     "[comment foo]",
+     "[comment ```]",
+     "[comment foo]",
+     "[comment `````]",
+     "bar");
+
+  FencedTest("fencedCodeBlocksTildes",
+     "[comment ~~~]",
+     "[comment foo]",
+     "[comment ~~~]",
+     "bar");
+
+  FencedTest("fencedCodeBlocksTildesMultipleChars",
+     "[comment ~~~~~]",
+     "[comment ~~~]",
+     "[comment foo]",
+     "[comment ~~~~~]",
+     "bar");
+
+  FencedTest("fencedCodeBlocksMultipleChars",
+     "[comment `````]",
+     "[comment foo]",
+     "[comment ```]",
+     "[comment foo]",
+     "[comment `````]",
+     "bar");
+
+  FencedTest("fencedCodeBlocksMixed",
+     "[comment ~~~]",
+     "[comment ```]",
+     "[comment foo]",
+     "[comment ~~~]",
+     "bar");
+
+  // Tests that require XML mode
+
+  MT("xmlMode",
+     "[tag&bracket <][tag div][tag&bracket >]",
+     "*foo*",
+     "[tag&bracket <][tag http://github.com][tag&bracket />]",
+     "[tag&bracket ]",
+     "[link ]");
+
+  MT("xmlModeWithMarkdownInside",
+     "[tag&bracket <][tag div] [attribute markdown]=[string 1][tag&bracket >]",
+     "[em *foo*]",
+     "[link ]",
+     "[tag 
]",
+     "[link ]",
+     "[tag&bracket <][tag div][tag&bracket >]",
+     "[tag&bracket ]");
+
+})();
diff --git a/public/codemirror/mode/mathematica/index.html b/public/codemirror/mode/mathematica/index.html
new file mode 100644
index 000000000..57c429853
--- /dev/null
+++ b/public/codemirror/mode/mathematica/index.html
@@ -0,0 +1,72 @@
+
+
+CodeMirror: Mathematica mode
+
+
+
+
+
+
+
+
+
+
+

+
Mathematica mode

+
+
+
+
+
+
+
MIME types defined: text/x-mathematica (Mathematica).

+

diff --git a/public/codemirror/mode/mathematica/mathematica.js b/public/codemirror/mode/mathematica/mathematica.js
new file mode 100644
index 000000000..d6977088c
--- /dev/null
+++ b/public/codemirror/mode/mathematica/mathematica.js
@@ -0,0 +1,176 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// Mathematica mode copyright (c) 2015 by Calin Barbat
+// Based on code by Patrick Scheibe (halirutan)
+// See: https://github.com/halirutan/Mathematica-Source-Highlighting/tree/master/src/lang-mma.js
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode('mathematica', function(_config, _parserConfig) {
+
+  // used pattern building blocks
+  var Identifier = '[a-zA-Z\\$][a-zA-Z0-9\\$]*';
+  var pBase      = "(?:\\d+)";
+  var pFloat     = "(?:\\.\\d+|\\d+\\.\\d*|\\d+)";
+  var pFloatBase = "(?:\\.\\w+|\\w+\\.\\w*|\\w+)";
+  var pPrecision = "(?:`(?:`?"+pFloat+")?)";
+
+  // regular expressions
+  var reBaseForm        = new RegExp('(?:'+pBase+'(?:\\^\\^'+pFloatBase+pPrecision+'?(?:\\*\\^[+-]?\\d+)?))');
+  var reFloatForm       = new RegExp('(?:' + pFloat + pPrecision + '?(?:\\*\\^[+-]?\\d+)?)');
+  var reIdInContext     = new RegExp('(?:`?)(?:' + Identifier + ')(?:`(?:' + Identifier + '))*(?:`?)');
+
+  function tokenBase(stream, state) {
+    var ch;
+
+    // get next character
+    ch = stream.next();
+
+    // string
+    if (ch === '"') {
+      state.tokenize = tokenString;
+      return state.tokenize(stream, state);
+    }
+
+    // comment
+    if (ch === '(') {
+      if (stream.eat('*')) {
+        state.commentLevel++;
+        state.tokenize = tokenComment;
+        return state.tokenize(stream, state);
+      }
+    }
+
+    // go back one character
+    stream.backUp(1);
+
+    // look for numbers
+    // Numbers in a baseform
+    if (stream.match(reBaseForm, true, false)) {
+      return 'number';
+    }
+
+    // Mathematica numbers. Floats (1.2, .2, 1.) can have optionally a precision (`float) or an accuracy definition
+    // (``float). Note: while 1.2` is possible 1.2`` is not. At the end an exponent (float*^+12) can follow.
+    if (stream.match(reFloatForm, true, false)) {
+      return 'number';
+    }
+
+    /* In[23] and Out[34] */
+    if (stream.match(/(?:In|Out)\[[0-9]*\]/, true, false)) {
+      return 'atom';
+    }
+
+    // usage
+    if (stream.match(/([a-zA-Z\$]+(?:`?[a-zA-Z0-9\$])*::usage)/, true, false)) {
+      return 'meta';
+    }
+
+    // message
+    if (stream.match(/([a-zA-Z\$]+(?:`?[a-zA-Z0-9\$])*::[a-zA-Z\$][a-zA-Z0-9\$]*):?/, true, false)) {
+      return 'string-2';
+    }
+
+    // this makes a look-ahead match for something like variable:{_Integer}
+    // the match is then forwarded to the mma-patterns tokenizer.
+    if (stream.match(/([a-zA-Z\$][a-zA-Z0-9\$]*\s*:)(?:(?:[a-zA-Z\$][a-zA-Z0-9\$]*)|(?:[^:=>~@\^\&\*\)\[\]'\?,\|])).*/, true, false)) {
+      return 'variable-2';
+    }
+
+    // catch variables which are used together with Blank (_), BlankSequence (__) or BlankNullSequence (___)
+    // Cannot start with a number, but can have numbers at any other position. Examples
+    // blub__Integer, a1_, b34_Integer32
+    if (stream.match(/[a-zA-Z\$][a-zA-Z0-9\$]*_+[a-zA-Z\$][a-zA-Z0-9\$]*/, true, false)) {
+      return 'variable-2';
+    }
+    if (stream.match(/[a-zA-Z\$][a-zA-Z0-9\$]*_+/, true, false)) {
+      return 'variable-2';
+    }
+    if (stream.match(/_+[a-zA-Z\$][a-zA-Z0-9\$]*/, true, false)) {
+      return 'variable-2';
+    }
+
+    // Named characters in Mathematica, like \[Gamma].
+    if (stream.match(/\\\[[a-zA-Z\$][a-zA-Z0-9\$]*\]/, true, false)) {
+      return 'variable-3';
+    }
+
+    // Match all braces separately
+    if (stream.match(/(?:\[|\]|{|}|\(|\))/, true, false)) {
+      return 'bracket';
+    }
+
+    // Catch Slots (#, ##, #3, ##9 and the V10 named slots #name). I have never seen someone using more than one digit after #, so we match
+    // only one.
+    if (stream.match(/(?:#[a-zA-Z\$][a-zA-Z0-9\$]*|#+[0-9]?)/, true, false)) {
+      return 'variable-2';
+    }
+
+    // Literals like variables, keywords, functions
+    if (stream.match(reIdInContext, true, false)) {
+      return 'keyword';
+    }
+
+    // operators. Note that operators like @@ or /; are matched separately for each symbol.
+    if (stream.match(/(?:\\|\+|\-|\*|\/|,|;|\.|:|@|~|=|>|<|&|\||_|`|'|\^|\?|!|%)/, true, false)) {
+      return 'operator';
+    }
+
+    // everything else is an error
+    stream.next(); // advance the stream.
+    return 'error';
+  }
+
+  function tokenString(stream, state) {
+    var next, end = false, escaped = false;
+    while ((next = stream.next()) != null) {
+      if (next === '"' && !escaped) {
+        end = true;
+        break;
+      }
+      escaped = !escaped && next === '\\';
+    }
+    if (end && !escaped) {
+      state.tokenize = tokenBase;
+    }
+    return 'string';
+  };
+
+  function tokenComment(stream, state) {
+    var prev, next;
+    while(state.commentLevel > 0 && (next = stream.next()) != null) {
+      if (prev === '(' && next === '*') state.commentLevel++;
+      if (prev === '*' && next === ')') state.commentLevel--;
+      prev = next;
+    }
+    if (state.commentLevel <= 0) {
+      state.tokenize = tokenBase;
+    }
+    return 'comment';
+  }
+
+  return {
+    startState: function() {return {tokenize: tokenBase, commentLevel: 0};},
+    token: function(stream, state) {
+      if (stream.eatSpace()) return null;
+      return state.tokenize(stream, state);
+    },
+    blockCommentStart: "(*",
+    blockCommentEnd: "*)"
+  };
+});
+
+CodeMirror.defineMIME('text/x-mathematica', {
+  name: 'mathematica'
+});
+
+});
diff --git a/public/codemirror/mode/mbox/index.html b/public/codemirror/mode/mbox/index.html
new file mode 100644
index 000000000..248ea98e1
--- /dev/null
+++ b/public/codemirror/mode/mbox/index.html
@@ -0,0 +1,44 @@
+
+
+CodeMirror: mbox mode
+
+
+
+
+
+
+
+
+
+

+
mbox mode

+

+    
+
+    
MIME types defined: application/mbox.

+
+  

diff --git a/public/codemirror/mode/mbox/mbox.js b/public/codemirror/mode/mbox/mbox.js
new file mode 100644
index 000000000..ba2416ac8
--- /dev/null
+++ b/public/codemirror/mode/mbox/mbox.js
@@ -0,0 +1,129 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+var rfc2822 = [
+  "From", "Sender", "Reply-To", "To", "Cc", "Bcc", "Message-ID",
+  "In-Reply-To", "References", "Resent-From", "Resent-Sender", "Resent-To",
+  "Resent-Cc", "Resent-Bcc", "Resent-Message-ID", "Return-Path", "Received"
+];
+var rfc2822NoEmail = [
+  "Date", "Subject", "Comments", "Keywords", "Resent-Date"
+];
+
+CodeMirror.registerHelper("hintWords", "mbox", rfc2822.concat(rfc2822NoEmail));
+
+var whitespace = /^[ \t]/;
+var separator = /^From /; // See RFC 4155
+var rfc2822Header = new RegExp("^(" + rfc2822.join("|") + "): ");
+var rfc2822HeaderNoEmail = new RegExp("^(" + rfc2822NoEmail.join("|") + "): ");
+var header = /^[^:]+:/; // Optional fields defined in RFC 2822
+var email = /^[^ ]+@[^ ]+/;
+var untilEmail = /^.*?(?=[^ ]+?@[^ ]+)/;
+var bracketedEmail = /^<.*?>/;
+var untilBracketedEmail = /^.*?(?=<.*>)/;
+
+function styleForHeader(header) {
+  if (header === "Subject") return "header";
+  return "string";
+}
+
+function readToken(stream, state) {
+  if (stream.sol()) {
+    // From last line
+    state.inSeparator = false;
+    if (state.inHeader && stream.match(whitespace)) {
+      // Header folding
+      return null;
+    } else {
+      state.inHeader = false;
+      state.header = null;
+    }
+
+    if (stream.match(separator)) {
+      state.inHeaders = true;
+      state.inSeparator = true;
+      return "atom";
+    }
+
+    var match;
+    var emailPermitted = false;
+    if ((match = stream.match(rfc2822HeaderNoEmail)) ||
+        (emailPermitted = true) && (match = stream.match(rfc2822Header))) {
+      state.inHeaders = true;
+      state.inHeader = true;
+      state.emailPermitted = emailPermitted;
+      state.header = match[1];
+      return "atom";
+    }
+
+    // Use vim's heuristics: recognize custom headers only if the line is in a
+    // block of legitimate headers.
+    if (state.inHeaders && (match = stream.match(header))) {
+      state.inHeader = true;
+      state.emailPermitted = true;
+      state.header = match[1];
+      return "atom";
+    }
+
+    state.inHeaders = false;
+    stream.skipToEnd();
+    return null;
+  }
+
+  if (state.inSeparator) {
+    if (stream.match(email)) return "link";
+    if (stream.match(untilEmail)) return "atom";
+    stream.skipToEnd();
+    return "atom";
+  }
+
+  if (state.inHeader) {
+    var style = styleForHeader(state.header);
+
+    if (state.emailPermitted) {
+      if (stream.match(bracketedEmail)) return style + " link";
+      if (stream.match(untilBracketedEmail)) return style;
+    }
+    stream.skipToEnd();
+    return style;
+  }
+
+  stream.skipToEnd();
+  return null;
+};
+
+CodeMirror.defineMode("mbox", function() {
+  return {
+    startState: function() {
+      return {
+        // Is in a mbox separator
+        inSeparator: false,
+        // Is in a mail header
+        inHeader: false,
+        // If bracketed email is permitted. Only applicable when inHeader
+        emailPermitted: false,
+        // Name of current header
+        header: null,
+        // Is in a region of mail headers
+        inHeaders: false
+      };
+    },
+    token: readToken,
+    blankLine: function(state) {
+      state.inHeaders = state.inSeparator = state.inHeader = false;
+    }
+  };
+});
+
+CodeMirror.defineMIME("application/mbox", "mbox");
+});
diff --git a/public/codemirror/mode/meta.js b/public/codemirror/mode/meta.js
new file mode 100644
index 000000000..0a3dd2ca9
--- /dev/null
+++ b/public/codemirror/mode/meta.js
@@ -0,0 +1,214 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.modeInfo = [
+    {name: "APL", mime: "text/apl", mode: "apl", ext: ["dyalog", "apl"]},
+    {name: "PGP", mimes: ["application/pgp", "application/pgp-keys", "application/pgp-signature"], mode: "asciiarmor", ext: ["pgp"]},
+    {name: "ASN.1", mime: "text/x-ttcn-asn", mode: "asn.1", ext: ["asn", "asn1"]},
+    {name: "Asterisk", mime: "text/x-asterisk", mode: "asterisk", file: /^extensions\.conf$/i},
+    {name: "Brainfuck", mime: "text/x-brainfuck", mode: "brainfuck", ext: ["b", "bf"]},
+    {name: "C", mime: "text/x-csrc", mode: "clike", ext: ["c", "h"]},
+    {name: "C++", mime: "text/x-c++src", mode: "clike", ext: ["cpp", "c++", "cc", "cxx", "hpp", "h++", "hh", "hxx"], alias: ["cpp"]},
+    {name: "Cobol", mime: "text/x-cobol", mode: "cobol", ext: ["cob", "cpy"]},
+    {name: "C#", mime: "text/x-csharp", mode: "clike", ext: ["cs"], alias: ["csharp"]},
+    {name: "Clojure", mime: "text/x-clojure", mode: "clojure", ext: ["clj", "cljc", "cljx"]},
+    {name: "ClojureScript", mime: "text/x-clojurescript", mode: "clojure", ext: ["cljs"]},
+    {name: "Closure Stylesheets (GSS)", mime: "text/x-gss", mode: "css", ext: ["gss"]},
+    {name: "CMake", mime: "text/x-cmake", mode: "cmake", ext: ["cmake", "cmake.in"], file: /^CMakeLists.txt$/},
+    {name: "CoffeeScript", mime: "text/x-coffeescript", mode: "coffeescript", ext: ["coffee"], alias: ["coffee", "coffee-script"]},
+    {name: "Common Lisp", mime: "text/x-common-lisp", mode: "commonlisp", ext: ["cl", "lisp", "el"], alias: ["lisp"]},
+    {name: "Cypher", mime: "application/x-cypher-query", mode: "cypher", ext: ["cyp", "cypher"]},
+    {name: "Cython", mime: "text/x-cython", mode: "python", ext: ["pyx", "pxd", "pxi"]},
+    {name: "Crystal", mime: "text/x-crystal", mode: "crystal", ext: ["cr"]},
+    {name: "CSS", mime: "text/css", mode: "css", ext: ["css"]},
+    {name: "CQL", mime: "text/x-cassandra", mode: "sql", ext: ["cql"]},
+    {name: "D", mime: "text/x-d", mode: "d", ext: ["d"]},
+    {name: "Dart", mimes: ["application/dart", "text/x-dart"], mode: "dart", ext: ["dart"]},
+    {name: "diff", mime: "text/x-diff", mode: "diff", ext: ["diff", "patch"]},
+    {name: "Django", mime: "text/x-django", mode: "django"},
+    {name: "Dockerfile", mime: "text/x-dockerfile", mode: "dockerfile", file: /^Dockerfile$/},
+    {name: "DTD", mime: "application/xml-dtd", mode: "dtd", ext: ["dtd"]},
+    {name: "Dylan", mime: "text/x-dylan", mode: "dylan", ext: ["dylan", "dyl", "intr"]},
+    {name: "EBNF", mime: "text/x-ebnf", mode: "ebnf"},
+    {name: "ECL", mime: "text/x-ecl", mode: "ecl", ext: ["ecl"]},
+    {name: "edn", mime: "application/edn", mode: "clojure", ext: ["edn"]},
+    {name: "Eiffel", mime: "text/x-eiffel", mode: "eiffel", ext: ["e"]},
+    {name: "Elm", mime: "text/x-elm", mode: "elm", ext: ["elm"]},
+    {name: "Embedded Javascript", mime: "application/x-ejs", mode: "htmlembedded", ext: ["ejs"]},
+    {name: "Embedded Ruby", mime: "application/x-erb", mode: "htmlembedded", ext: ["erb"]},
+    {name: "Erlang", mime: "text/x-erlang", mode: "erlang", ext: ["erl"]},
+    {name: "Factor", mime: "text/x-factor", mode: "factor", ext: ["factor"]},
+    {name: "FCL", mime: "text/x-fcl", mode: "fcl"},
+    {name: "Forth", mime: "text/x-forth", mode: "forth", ext: ["forth", "fth", "4th"]},
+    {name: "Fortran", mime: "text/x-fortran", mode: "fortran", ext: ["f", "for", "f77", "f90"]},
+    {name: "F#", mime: "text/x-fsharp", mode: "mllike", ext: ["fs"], alias: ["fsharp"]},
+    {name: "Gas", mime: "text/x-gas", mode: "gas", ext: ["s"]},
+    {name: "Gherkin", mime: "text/x-feature", mode: "gherkin", ext: ["feature"]},
+    {name: "GitHub Flavored Markdown", mime: "text/x-gfm", mode: "gfm", file: /^(readme|contributing|history).md$/i},
+    {name: "Go", mime: "text/x-go", mode: "go", ext: ["go"]},
+    {name: "Groovy", mime: "text/x-groovy", mode: "groovy", ext: ["groovy", "gradle"], file: /^Jenkinsfile$/},
+    {name: "HAML", mime: "text/x-haml", mode: "haml", ext: ["haml"]},
+    {name: "Haskell", mime: "text/x-haskell", mode: "haskell", ext: ["hs"]},
+    {name: "Haskell (Literate)", mime: "text/x-literate-haskell", mode: "haskell-literate", ext: ["lhs"]},
+    {name: "Haxe", mime: "text/x-haxe", mode: "haxe", ext: ["hx"]},
+    {name: "HXML", mime: "text/x-hxml", mode: "haxe", ext: ["hxml"]},
+    {name: "ASP.NET", mime: "application/x-aspx", mode: "htmlembedded", ext: ["aspx"], alias: ["asp", "aspx"]},
+    {name: "HTML", mime: "text/html", mode: "htmlmixed", ext: ["html", "htm"], alias: ["xhtml"]},
+    {name: "HTTP", mime: "message/http", mode: "http"},
+    {name: "IDL", mime: "text/x-idl", mode: "idl", ext: ["pro"]},
+    {name: "Pug", mime: "text/x-pug", mode: "pug", ext: ["jade", "pug"], alias: ["jade"]},
+    {name: "Java", mime: "text/x-java", mode: "clike", ext: ["java"]},
+    {name: "Java Server Pages", mime: "application/x-jsp", mode: "htmlembedded", ext: ["jsp"], alias: ["jsp"]},
+    {name: "JavaScript", mimes: ["text/javascript", "text/ecmascript", "application/javascript", "application/x-javascript", "application/ecmascript"],
+     mode: "javascript", ext: ["js"], alias: ["ecmascript", "js", "node"]},
+    {name: "JSON", mimes: ["application/json", "application/x-json"], mode: "javascript", ext: ["json", "map"], alias: ["json5"]},
+    {name: "JSON-LD", mime: "application/ld+json", mode: "javascript", ext: ["jsonld"], alias: ["jsonld"]},
+    {name: "JSX", mime: "text/jsx", mode: "jsx", ext: ["jsx"]},
+    {name: "Jinja2", mime: "null", mode: "jinja2"},
+    {name: "Julia", mime: "text/x-julia", mode: "julia", ext: ["jl"]},
+    {name: "Kotlin", mime: "text/x-kotlin", mode: "clike", ext: ["kt"]},
+    {name: "LESS", mime: "text/x-less", mode: "css", ext: ["less"]},
+    {name: "LiveScript", mime: "text/x-livescript", mode: "livescript", ext: ["ls"], alias: ["ls"]},
+    {name: "Lua", mime: "text/x-lua", mode: "lua", ext: ["lua"]},
+    {name: "Markdown", mime: "text/x-markdown", mode: "markdown", ext: ["markdown", "md", "mkd"]},
+    {name: "mIRC", mime: "text/mirc", mode: "mirc"},
+    {name: "MariaDB SQL", mime: "text/x-mariadb", mode: "sql"},
+    {name: "Mathematica", mime: "text/x-mathematica", mode: "mathematica", ext: ["m", "nb"]},
+    {name: "Modelica", mime: "text/x-modelica", mode: "modelica", ext: ["mo"]},
+    {name: "MUMPS", mime: "text/x-mumps", mode: "mumps", ext: ["mps"]},
+    {name: "MS SQL", mime: "text/x-mssql", mode: "sql"},
+    {name: "mbox", mime: "application/mbox", mode: "mbox", ext: ["mbox"]},
+    {name: "MySQL", mime: "text/x-mysql", mode: "sql"},
+    {name: "Nginx", mime: "text/x-nginx-conf", mode: "nginx", file: /nginx.*\.conf$/i},
+    {name: "NSIS", mime: "text/x-nsis", mode: "nsis", ext: ["nsh", "nsi"]},
+    {name: "NTriples", mime: "text/n-triples", mode: "ntriples", ext: ["nt"]},
+    {name: "Objective C", mime: "text/x-objectivec", mode: "clike", ext: ["m", "mm"], alias: ["objective-c", "objc"]},
+    {name: "OCaml", mime: "text/x-ocaml", mode: "mllike", ext: ["ml", "mli", "mll", "mly"]},
+    {name: "Octave", mime: "text/x-octave", mode: "octave", ext: ["m"]},
+    {name: "Oz", mime: "text/x-oz", mode: "oz", ext: ["oz"]},
+    {name: "Pascal", mime: "text/x-pascal", mode: "pascal", ext: ["p", "pas"]},
+    {name: "PEG.js", mime: "null", mode: "pegjs", ext: ["jsonld"]},
+    {name: "Perl", mime: "text/x-perl", mode: "perl", ext: ["pl", "pm"]},
+    {name: "PHP", mime: "application/x-httpd-php", mode: "php", ext: ["php", "php3", "php4", "php5", "phtml"]},
+    {name: "Pig", mime: "text/x-pig", mode: "pig", ext: ["pig"]},
+    {name: "Plain Text", mime: "text/plain", mode: "null", ext: ["txt", "text", "conf", "def", "list", "log"]},
+    {name: "PLSQL", mime: "text/x-plsql", mode: "sql", ext: ["pls"]},
+    {name: "PowerShell", mime: "application/x-powershell", mode: "powershell", ext: ["ps1", "psd1", "psm1"]},
+    {name: "Properties files", mime: "text/x-properties", mode: "properties", ext: ["properties", "ini", "in"], alias: ["ini", "properties"]},
+    {name: "ProtoBuf", mime: "text/x-protobuf", mode: "protobuf", ext: ["proto"]},
+    {name: "Python", mime: "text/x-python", mode: "python", ext: ["BUILD", "bzl", "py", "pyw"], file: /^(BUCK|BUILD)$/},
+    {name: "Puppet", mime: "text/x-puppet", mode: "puppet", ext: ["pp"]},
+    {name: "Q", mime: "text/x-q", mode: "q", ext: ["q"]},
+    {name: "R", mime: "text/x-rsrc", mode: "r", ext: ["r", "R"], alias: ["rscript"]},
+    {name: "reStructuredText", mime: "text/x-rst", mode: "rst", ext: ["rst"], alias: ["rst"]},
+    {name: "RPM Changes", mime: "text/x-rpm-changes", mode: "rpm"},
+    {name: "RPM Spec", mime: "text/x-rpm-spec", mode: "rpm", ext: ["spec"]},
+    {name: "Ruby", mime: "text/x-ruby", mode: "ruby", ext: ["rb"], alias: ["jruby", "macruby", "rake", "rb", "rbx"]},
+    {name: "Rust", mime: "text/x-rustsrc", mode: "rust", ext: ["rs"]},
+    {name: "SAS", mime: "text/x-sas", mode: "sas", ext: ["sas"]},
+    {name: "Sass", mime: "text/x-sass", mode: "sass", ext: ["sass"]},
+    {name: "Scala", mime: "text/x-scala", mode: "clike", ext: ["scala"]},
+    {name: "Scheme", mime: "text/x-scheme", mode: "scheme", ext: ["scm", "ss"]},
+    {name: "SCSS", mime: "text/x-scss", mode: "css", ext: ["scss"]},
+    {name: "Shell", mime: "text/x-sh", mode: "shell", ext: ["sh", "ksh", "bash"], alias: ["bash", "sh", "zsh"], file: /^PKGBUILD$/},
+    {name: "Sieve", mime: "application/sieve", mode: "sieve", ext: ["siv", "sieve"]},
+    {name: "Slim", mimes: ["text/x-slim", "application/x-slim"], mode: "slim", ext: ["slim"]},
+    {name: "Smalltalk", mime: "text/x-stsrc", mode: "smalltalk", ext: ["st"]},
+    {name: "Smarty", mime: "text/x-smarty", mode: "smarty", ext: ["tpl"]},
+    {name: "Solr", mime: "text/x-solr", mode: "solr"},
+    {name: "Soy", mime: "text/x-soy", mode: "soy", ext: ["soy"], alias: ["closure template"]},
+    {name: "SPARQL", mime: "application/sparql-query", mode: "sparql", ext: ["rq", "sparql"], alias: ["sparul"]},
+    {name: "Spreadsheet", mime: "text/x-spreadsheet", mode: "spreadsheet", alias: ["excel", "formula"]},
+    {name: "SQL", mime: "text/x-sql", mode: "sql", ext: ["sql"]},
+    {name: "SQLite", mime: "text/x-sqlite", mode: "sql"},
+    {name: "Squirrel", mime: "text/x-squirrel", mode: "clike", ext: ["nut"]},
+    {name: "Stylus", mime: "text/x-styl", mode: "stylus", ext: ["styl"]},
+    {name: "Swift", mime: "text/x-swift", mode: "swift", ext: ["swift"]},
+    {name: "sTeX", mime: "text/x-stex", mode: "stex"},
+    {name: "LaTeX", mime: "text/x-latex", mode: "stex", ext: ["text", "ltx"], alias: ["tex"]},
+    {name: "SystemVerilog", mime: "text/x-systemverilog", mode: "verilog", ext: ["v"]},
+    {name: "Tcl", mime: "text/x-tcl", mode: "tcl", ext: ["tcl"]},
+    {name: "Textile", mime: "text/x-textile", mode: "textile", ext: ["textile"]},
+    {name: "TiddlyWiki ", mime: "text/x-tiddlywiki", mode: "tiddlywiki"},
+    {name: "Tiki wiki", mime: "text/tiki", mode: "tiki"},
+    {name: "TOML", mime: "text/x-toml", mode: "toml", ext: ["toml"]},
+    {name: "Tornado", mime: "text/x-tornado", mode: "tornado"},
+    {name: "troff", mime: "text/troff", mode: "troff", ext: ["1", "2", "3", "4", "5", "6", "7", "8", "9"]},
+    {name: "TTCN", mime: "text/x-ttcn", mode: "ttcn", ext: ["ttcn", "ttcn3", "ttcnpp"]},
+    {name: "TTCN_CFG", mime: "text/x-ttcn-cfg", mode: "ttcn-cfg", ext: ["cfg"]},
+    {name: "Turtle", mime: "text/turtle", mode: "turtle", ext: ["ttl"]},
+    {name: "TypeScript", mime: "application/typescript", mode: "javascript", ext: ["ts"], alias: ["ts"]},
+    {name: "TypeScript-JSX", mime: "text/typescript-jsx", mode: "jsx", ext: ["tsx"], alias: ["tsx"]},
+    {name: "Twig", mime: "text/x-twig", mode: "twig"},
+    {name: "Web IDL", mime: "text/x-webidl", mode: "webidl", ext: ["webidl"]},
+    {name: "VB.NET", mime: "text/x-vb", mode: "vb", ext: ["vb"]},
+    {name: "VBScript", mime: "text/vbscript", mode: "vbscript", ext: ["vbs"]},
+    {name: "Velocity", mime: "text/velocity", mode: "velocity", ext: ["vtl"]},
+    {name: "Verilog", mime: "text/x-verilog", mode: "verilog", ext: ["v"]},
+    {name: "VHDL", mime: "text/x-vhdl", mode: "vhdl", ext: ["vhd", "vhdl"]},
+    {name: "Vue.js Component", mimes: ["script/x-vue", "text/x-vue"], mode: "vue", ext: ["vue"]},
+    {name: "XML", mimes: ["application/xml", "text/xml"], mode: "xml", ext: ["xml", "xsl", "xsd", "svg"], alias: ["rss", "wsdl", "xsd"]},
+    {name: "XQuery", mime: "application/xquery", mode: "xquery", ext: ["xy", "xquery"]},
+    {name: "Yacas", mime: "text/x-yacas", mode: "yacas", ext: ["ys"]},
+    {name: "YAML", mimes: ["text/x-yaml", "text/yaml"], mode: "yaml", ext: ["yaml", "yml"], alias: ["yml"]},
+    {name: "Z80", mime: "text/x-z80", mode: "z80", ext: ["z80"]},
+    {name: "mscgen", mime: "text/x-mscgen", mode: "mscgen", ext: ["mscgen", "mscin", "msc"]},
+    {name: "xu", mime: "text/x-xu", mode: "mscgen", ext: ["xu"]},
+    {name: "msgenny", mime: "text/x-msgenny", mode: "mscgen", ext: ["msgenny"]}
+  ];
+  // Ensure all modes have a mime property for backwards compatibility
+  for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
+    var info = CodeMirror.modeInfo[i];
+    if (info.mimes) info.mime = info.mimes[0];
+  }
+
+  CodeMirror.findModeByMIME = function(mime) {
+    mime = mime.toLowerCase();
+    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
+      var info = CodeMirror.modeInfo[i];
+      if (info.mime == mime) return info;
+      if (info.mimes) for (var j = 0; j < info.mimes.length; j++)
+        if (info.mimes[j] == mime) return info;
+    }
+    if (/\+xml$/.test(mime)) return CodeMirror.findModeByMIME("application/xml")
+    if (/\+json$/.test(mime)) return CodeMirror.findModeByMIME("application/json")
+  };
+
+  CodeMirror.findModeByExtension = function(ext) {
+    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
+      var info = CodeMirror.modeInfo[i];
+      if (info.ext) for (var j = 0; j < info.ext.length; j++)
+        if (info.ext[j] == ext) return info;
+    }
+  };
+
+  CodeMirror.findModeByFileName = function(filename) {
+    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
+      var info = CodeMirror.modeInfo[i];
+      if (info.file && info.file.test(filename)) return info;
+    }
+    var dot = filename.lastIndexOf(".");
+    var ext = dot > -1 && filename.substring(dot + 1, filename.length);
+    if (ext) return CodeMirror.findModeByExtension(ext);
+  };
+
+  CodeMirror.findModeByName = function(name) {
+    name = name.toLowerCase();
+    for (var i = 0; i < CodeMirror.modeInfo.length; i++) {
+      var info = CodeMirror.modeInfo[i];
+      if (info.name.toLowerCase() == name) return info;
+      if (info.alias) for (var j = 0; j < info.alias.length; j++)
+        if (info.alias[j].toLowerCase() == name) return info;
+    }
+  };
+});
diff --git a/public/codemirror/mode/mirc/index.html b/public/codemirror/mode/mirc/index.html
new file mode 100644
index 000000000..fd2f34e4b
--- /dev/null
+++ b/public/codemirror/mode/mirc/index.html
@@ -0,0 +1,160 @@
+
+
+CodeMirror: mIRC mode
+
+
+
+
+
+
+
+
+
+
+

+
mIRC mode

+

+    
+
+    
MIME types defined: text/mirc.

+
+  

diff --git a/public/codemirror/mode/mirc/mirc.js b/public/codemirror/mode/mirc/mirc.js
new file mode 100644
index 000000000..f0d5c6ad5
--- /dev/null
+++ b/public/codemirror/mode/mirc/mirc.js
@@ -0,0 +1,193 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+//mIRC mode by Ford_Lawnmower :: Based on Velocity mode by Steve O'Hara
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMIME("text/mirc", "mirc");
+CodeMirror.defineMode("mirc", function() {
+  function parseWords(str) {
+    var obj = {}, words = str.split(" ");
+    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+    return obj;
+  }
+  var specials = parseWords("$! $$ $& $? $+ $abook $abs $active $activecid " +
+                            "$activewid $address $addtok $agent $agentname $agentstat $agentver " +
+                            "$alias $and $anick $ansi2mirc $aop $appactive $appstate $asc $asctime " +
+                            "$asin $atan $avoice $away $awaymsg $awaytime $banmask $base $bfind " +
+                            "$binoff $biton $bnick $bvar $bytes $calc $cb $cd $ceil $chan $chanmodes " +
+                            "$chantypes $chat $chr $cid $clevel $click $cmdbox $cmdline $cnick $color " +
+                            "$com $comcall $comchan $comerr $compact $compress $comval $cos $count " +
+                            "$cr $crc $creq $crlf $ctime $ctimer $ctrlenter $date $day $daylight " +
+                            "$dbuh $dbuw $dccignore $dccport $dde $ddename $debug $decode $decompress " +
+                            "$deltok $devent $dialog $did $didreg $didtok $didwm $disk $dlevel $dll " +
+                            "$dllcall $dname $dns $duration $ebeeps $editbox $emailaddr $encode $error " +
+                            "$eval $event $exist $feof $ferr $fgetc $file $filename $filtered $finddir " +
+                            "$finddirn $findfile $findfilen $findtok $fline $floor $fopen $fread $fserve " +
+                            "$fulladdress $fulldate $fullname $fullscreen $get $getdir $getdot $gettok $gmt " +
+                            "$group $halted $hash $height $hfind $hget $highlight $hnick $hotline " +
+                            "$hotlinepos $ial $ialchan $ibl $idle $iel $ifmatch $ignore $iif $iil " +
+                            "$inelipse $ini $inmidi $inpaste $inpoly $input $inrect $inroundrect " +
+                            "$insong $instok $int $inwave $ip $isalias $isbit $isdde $isdir $isfile " +
+                            "$isid $islower $istok $isupper $keychar $keyrpt $keyval $knick $lactive " +
+                            "$lactivecid $lactivewid $left $len $level $lf $line $lines $link $lock " +
+                            "$lock $locked $log $logstamp $logstampfmt $longfn $longip $lower $ltimer " +
+                            "$maddress $mask $matchkey $matchtok $md5 $me $menu $menubar $menucontext " +
+                            "$menutype $mid $middir $mircdir $mircexe $mircini $mklogfn $mnick $mode " +
+                            "$modefirst $modelast $modespl $mouse $msfile $network $newnick $nick $nofile " +
+                            "$nopath $noqt $not $notags $notify $null $numeric $numok $oline $onpoly " +
+                            "$opnick $or $ord $os $passivedcc $pic $play $pnick $port $portable $portfree " +
+                            "$pos $prefix $prop $protect $puttok $qt $query $rand $r $rawmsg $read $readomo " +
+                            "$readn $regex $regml $regsub $regsubex $remove $remtok $replace $replacex " +
+                            "$reptok $result $rgb $right $round $scid $scon $script $scriptdir $scriptline " +
+                            "$sdir $send $server $serverip $sfile $sha1 $shortfn $show $signal $sin " +
+                            "$site $sline $snick $snicks $snotify $sock $sockbr $sockerr $sockname " +
+                            "$sorttok $sound $sqrt $ssl $sreq $sslready $status $strip $str $stripped " +
+                            "$syle $submenu $switchbar $tan $target $ticks $time $timer $timestamp " +
+                            "$timestampfmt $timezone $tip $titlebar $toolbar $treebar $trust $ulevel " +
+                            "$ulist $upper $uptime $url $usermode $v1 $v2 $var $vcmd $vcmdstat $vcmdver " +
+                            "$version $vnick $vol $wid $width $wildsite $wildtok $window $wrap $xor");
+  var keywords = parseWords("abook ajinvite alias aline ame amsg anick aop auser autojoin avoice " +
+                            "away background ban bcopy beep bread break breplace bset btrunc bunset bwrite " +
+                            "channel clear clearall cline clipboard close cnick color comclose comopen " +
+                            "comreg continue copy creq ctcpreply ctcps dcc dccserver dde ddeserver " +
+                            "debug dec describe dialog did didtok disable disconnect dlevel dline dll " +
+                            "dns dqwindow drawcopy drawdot drawfill drawline drawpic drawrect drawreplace " +
+                            "drawrot drawsave drawscroll drawtext ebeeps echo editbox emailaddr enable " +
+                            "events exit fclose filter findtext finger firewall flash flist flood flush " +
+                            "flushini font fopen fseek fsend fserve fullname fwrite ghide gload gmove " +
+                            "gopts goto gplay gpoint gqreq groups gshow gsize gstop gtalk gunload hadd " +
+                            "halt haltdef hdec hdel help hfree hinc hload hmake hop hsave ial ialclear " +
+                            "ialmark identd if ignore iline inc invite iuser join kick linesep links list " +
+                            "load loadbuf localinfo log mdi me menubar mkdir mnick mode msg nick noop notice " +
+                            "notify omsg onotice part partall pdcc perform play playctrl pop protect pvoice " +
+                            "qme qmsg query queryn quit raw reload remini remote remove rename renwin " +
+                            "reseterror resetidle return rlevel rline rmdir run ruser save savebuf saveini " +
+                            "say scid scon server set showmirc signam sline sockaccept sockclose socklist " +
+                            "socklisten sockmark sockopen sockpause sockread sockrename sockudp sockwrite " +
+                            "sound speak splay sreq strip switchbar timer timestamp titlebar tnick tokenize " +
+                            "toolbar topic tray treebar ulist unload unset unsetall updatenl url uwho " +
+                            "var vcadd vcmd vcrem vol while whois window winhelp write writeint if isalnum " +
+                            "isalpha isaop isavoice isban ischan ishop isignore isin isincs isletter islower " +
+                            "isnotify isnum ison isop isprotect isreg isupper isvoice iswm iswmcs " +
+                            "elseif else goto menu nicklist status title icon size option text edit " +
+                            "button check radio box scroll list combo link tab item");
+  var functions = parseWords("if elseif else and not or eq ne in ni for foreach while switch");
+  var isOperatorChar = /[+\-*&%=<>!?^\/\|]/;
+  function chain(stream, state, f) {
+    state.tokenize = f;
+    return f(stream, state);
+  }
+  function tokenBase(stream, state) {
+    var beforeParams = state.beforeParams;
+    state.beforeParams = false;
+    var ch = stream.next();
+    if (/[\[\]{}\(\),\.]/.test(ch)) {
+      if (ch == "(" && beforeParams) state.inParams = true;
+      else if (ch == ")") state.inParams = false;
+      return null;
+    }
+    else if (/\d/.test(ch)) {
+      stream.eatWhile(/[\w\.]/);
+      return "number";
+    }
+    else if (ch == "\\") {
+      stream.eat("\\");
+      stream.eat(/./);
+      return "number";
+    }
+    else if (ch == "/" && stream.eat("*")) {
+      return chain(stream, state, tokenComment);
+    }
+    else if (ch == ";" && stream.match(/ *\( *\(/)) {
+      return chain(stream, state, tokenUnparsed);
+    }
+    else if (ch == ";" && !state.inParams) {
+      stream.skipToEnd();
+      return "comment";
+    }
+    else if (ch == '"') {
+      stream.eat(/"/);
+      return "keyword";
+    }
+    else if (ch == "$") {
+      stream.eatWhile(/[$_a-z0-9A-Z\.:]/);
+      if (specials && specials.propertyIsEnumerable(stream.current().toLowerCase())) {
+        return "keyword";
+      }
+      else {
+        state.beforeParams = true;
+        return "builtin";
+      }
+    }
+    else if (ch == "%") {
+      stream.eatWhile(/[^,^\s^\(^\)]/);
+      state.beforeParams = true;
+      return "string";
+    }
+    else if (isOperatorChar.test(ch)) {
+      stream.eatWhile(isOperatorChar);
+      return "operator";
+    }
+    else {
+      stream.eatWhile(/[\w\$_{}]/);
+      var word = stream.current().toLowerCase();
+      if (keywords && keywords.propertyIsEnumerable(word))
+        return "keyword";
+      if (functions && functions.propertyIsEnumerable(word)) {
+        state.beforeParams = true;
+        return "keyword";
+      }
+      return null;
+    }
+  }
+  function tokenComment(stream, state) {
+    var maybeEnd = false, ch;
+    while (ch = stream.next()) {
+      if (ch == "/" && maybeEnd) {
+        state.tokenize = tokenBase;
+        break;
+      }
+      maybeEnd = (ch == "*");
+    }
+    return "comment";
+  }
+  function tokenUnparsed(stream, state) {
+    var maybeEnd = 0, ch;
+    while (ch = stream.next()) {
+      if (ch == ";" && maybeEnd == 2) {
+        state.tokenize = tokenBase;
+        break;
+      }
+      if (ch == ")")
+        maybeEnd++;
+      else if (ch != " ")
+        maybeEnd = 0;
+    }
+    return "meta";
+  }
+  return {
+    startState: function() {
+      return {
+        tokenize: tokenBase,
+        beforeParams: false,
+        inParams: false
+      };
+    },
+    token: function(stream, state) {
+      if (stream.eatSpace()) return null;
+      return state.tokenize(stream, state);
+    }
+  };
+});
+
+});
diff --git a/public/codemirror/mode/mllike/index.html b/public/codemirror/mode/mllike/index.html
new file mode 100644
index 000000000..5923af8f8
--- /dev/null
+++ b/public/codemirror/mode/mllike/index.html
@@ -0,0 +1,179 @@
+
+
+CodeMirror: ML-like mode
+
+
+
+
+
+
+
+
+
+
+

+
OCaml mode

+
+
+
+
+
F# mode

+
+
+
+
+
+
MIME types defined: text/x-ocaml (OCaml) and text/x-fsharp (F#).

+

diff --git a/public/codemirror/mode/mllike/mllike.js b/public/codemirror/mode/mllike/mllike.js
new file mode 100644
index 000000000..4d0be609c
--- /dev/null
+++ b/public/codemirror/mode/mllike/mllike.js
@@ -0,0 +1,208 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode('mllike', function(_config, parserConfig) {
+  var words = {
+    'let': 'keyword',
+    'rec': 'keyword',
+    'in': 'keyword',
+    'of': 'keyword',
+    'and': 'keyword',
+    'if': 'keyword',
+    'then': 'keyword',
+    'else': 'keyword',
+    'for': 'keyword',
+    'to': 'keyword',
+    'while': 'keyword',
+    'do': 'keyword',
+    'done': 'keyword',
+    'fun': 'keyword',
+    'function': 'keyword',
+    'val': 'keyword',
+    'type': 'keyword',
+    'mutable': 'keyword',
+    'match': 'keyword',
+    'with': 'keyword',
+    'try': 'keyword',
+    'open': 'builtin',
+    'ignore': 'builtin',
+    'begin': 'keyword',
+    'end': 'keyword'
+  };
+
+  var extraWords = parserConfig.extraWords || {};
+  for (var prop in extraWords) {
+    if (extraWords.hasOwnProperty(prop)) {
+      words[prop] = parserConfig.extraWords[prop];
+    }
+  }
+
+  function tokenBase(stream, state) {
+    var ch = stream.next();
+
+    if (ch === '"') {
+      state.tokenize = tokenString;
+      return state.tokenize(stream, state);
+    }
+    if (ch === '(') {
+      if (stream.eat('*')) {
+        state.commentLevel++;
+        state.tokenize = tokenComment;
+        return state.tokenize(stream, state);
+      }
+    }
+    if (ch === '~') {
+      stream.eatWhile(/\w/);
+      return 'variable-2';
+    }
+    if (ch === '`') {
+      stream.eatWhile(/\w/);
+      return 'quote';
+    }
+    if (ch === '/' && parserConfig.slashComments && stream.eat('/')) {
+      stream.skipToEnd();
+      return 'comment';
+    }
+    if (/\d/.test(ch)) {
+      stream.eatWhile(/[\d]/);
+      if (stream.eat('.')) {
+        stream.eatWhile(/[\d]/);
+      }
+      return 'number';
+    }
+    if ( /[+\-*&%=<>!?|]/.test(ch)) {
+      return 'operator';
+    }
+    if (/[\w\xa1-\uffff]/.test(ch)) {
+      stream.eatWhile(/[\w\xa1-\uffff]/);
+      var cur = stream.current();
+      return words.hasOwnProperty(cur) ? words[cur] : 'variable';
+    }
+    return null
+  }
+
+  function tokenString(stream, state) {
+    var next, end = false, escaped = false;
+    while ((next = stream.next()) != null) {
+      if (next === '"' && !escaped) {
+        end = true;
+        break;
+      }
+      escaped = !escaped && next === '\\';
+    }
+    if (end && !escaped) {
+      state.tokenize = tokenBase;
+    }
+    return 'string';
+  };
+
+  function tokenComment(stream, state) {
+    var prev, next;
+    while(state.commentLevel > 0 && (next = stream.next()) != null) {
+      if (prev === '(' && next === '*') state.commentLevel++;
+      if (prev === '*' && next === ')') state.commentLevel--;
+      prev = next;
+    }
+    if (state.commentLevel <= 0) {
+      state.tokenize = tokenBase;
+    }
+    return 'comment';
+  }
+
+  return {
+    startState: function() {return {tokenize: tokenBase, commentLevel: 0};},
+    token: function(stream, state) {
+      if (stream.eatSpace()) return null;
+      return state.tokenize(stream, state);
+    },
+
+    blockCommentStart: "(*",
+    blockCommentEnd: "*)",
+    lineComment: parserConfig.slashComments ? "//" : null
+  };
+});
+
+CodeMirror.defineMIME('text/x-ocaml', {
+  name: 'mllike',
+  extraWords: {
+    'succ': 'keyword',
+    'trace': 'builtin',
+    'exit': 'builtin',
+    'print_string': 'builtin',
+    'print_endline': 'builtin',
+    'true': 'atom',
+    'false': 'atom',
+    'raise': 'keyword'
+  }
+});
+
+CodeMirror.defineMIME('text/x-fsharp', {
+  name: 'mllike',
+  extraWords: {
+    'abstract': 'keyword',
+    'as': 'keyword',
+    'assert': 'keyword',
+    'base': 'keyword',
+    'class': 'keyword',
+    'default': 'keyword',
+    'delegate': 'keyword',
+    'downcast': 'keyword',
+    'downto': 'keyword',
+    'elif': 'keyword',
+    'exception': 'keyword',
+    'extern': 'keyword',
+    'finally': 'keyword',
+    'global': 'keyword',
+    'inherit': 'keyword',
+    'inline': 'keyword',
+    'interface': 'keyword',
+    'internal': 'keyword',
+    'lazy': 'keyword',
+    'let!': 'keyword',
+    'member' : 'keyword',
+    'module': 'keyword',
+    'namespace': 'keyword',
+    'new': 'keyword',
+    'null': 'keyword',
+    'override': 'keyword',
+    'private': 'keyword',
+    'public': 'keyword',
+    'return': 'keyword',
+    'return!': 'keyword',
+    'select': 'keyword',
+    'static': 'keyword',
+    'struct': 'keyword',
+    'upcast': 'keyword',
+    'use': 'keyword',
+    'use!': 'keyword',
+    'val': 'keyword',
+    'when': 'keyword',
+    'yield': 'keyword',
+    'yield!': 'keyword',
+
+    'List': 'builtin',
+    'Seq': 'builtin',
+    'Map': 'builtin',
+    'Set': 'builtin',
+    'int': 'builtin',
+    'string': 'builtin',
+    'raise': 'builtin',
+    'failwith': 'builtin',
+    'not': 'builtin',
+    'true': 'builtin',
+    'false': 'builtin'
+  },
+  slashComments: true
+});
+
+});
diff --git a/public/codemirror/mode/modelica/index.html b/public/codemirror/mode/modelica/index.html
new file mode 100644
index 000000000..408c3b17e
--- /dev/null
+++ b/public/codemirror/mode/modelica/index.html
@@ -0,0 +1,67 @@
+
+
+CodeMirror: Modelica mode
+
+
+
+
+
+
+
+
+
+
+
+
+

+
Modelica mode

+
+

+
+    
+
+    
Simple mode that tries to handle Modelica as well as it can.

+
+    
MIME types defined: text/x-modelica
+    (Modlica code).

+

diff --git a/public/codemirror/mode/modelica/modelica.js b/public/codemirror/mode/modelica/modelica.js
new file mode 100644
index 000000000..77ec7a3c1
--- /dev/null
+++ b/public/codemirror/mode/modelica/modelica.js
@@ -0,0 +1,245 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// Modelica support for CodeMirror, copyright (c) by Lennart Ochel
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})
+
+(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineMode("modelica", function(config, parserConfig) {
+
+    var indentUnit = config.indentUnit;
+    var keywords = parserConfig.keywords || {};
+    var builtin = parserConfig.builtin || {};
+    var atoms = parserConfig.atoms || {};
+
+    var isSingleOperatorChar = /[;=\(:\),{}.*<>+\-\/^\[\]]/;
+    var isDoubleOperatorChar = /(:=|<=|>=|==|<>|\.\+|\.\-|\.\*|\.\/|\.\^)/;
+    var isDigit = /[0-9]/;
+    var isNonDigit = /[_a-zA-Z]/;
+
+    function tokenLineComment(stream, state) {
+      stream.skipToEnd();
+      state.tokenize = null;
+      return "comment";
+    }
+
+    function tokenBlockComment(stream, state) {
+      var maybeEnd = false, ch;
+      while (ch = stream.next()) {
+        if (maybeEnd && ch == "/") {
+          state.tokenize = null;
+          break;
+        }
+        maybeEnd = (ch == "*");
+      }
+      return "comment";
+    }
+
+    function tokenString(stream, state) {
+      var escaped = false, ch;
+      while ((ch = stream.next()) != null) {
+        if (ch == '"' && !escaped) {
+          state.tokenize = null;
+          state.sol = false;
+          break;
+        }
+        escaped = !escaped && ch == "\\";
+      }
+
+      return "string";
+    }
+
+    function tokenIdent(stream, state) {
+      stream.eatWhile(isDigit);
+      while (stream.eat(isDigit) || stream.eat(isNonDigit)) { }
+
+
+      var cur = stream.current();
+
+      if(state.sol && (cur == "package" || cur == "model" || cur == "when" || cur == "connector")) state.level++;
+      else if(state.sol && cur == "end" && state.level > 0) state.level--;
+
+      state.tokenize = null;
+      state.sol = false;
+
+      if (keywords.propertyIsEnumerable(cur)) return "keyword";
+      else if (builtin.propertyIsEnumerable(cur)) return "builtin";
+      else if (atoms.propertyIsEnumerable(cur)) return "atom";
+      else return "variable";
+    }
+
+    function tokenQIdent(stream, state) {
+      while (stream.eat(/[^']/)) { }
+
+      state.tokenize = null;
+      state.sol = false;
+
+      if(stream.eat("'"))
+        return "variable";
+      else
+        return "error";
+    }
+
+    function tokenUnsignedNuber(stream, state) {
+      stream.eatWhile(isDigit);
+      if (stream.eat('.')) {
+        stream.eatWhile(isDigit);
+      }
+      if (stream.eat('e') || stream.eat('E')) {
+        if (!stream.eat('-'))
+          stream.eat('+');
+        stream.eatWhile(isDigit);
+      }
+
+      state.tokenize = null;
+      state.sol = false;
+      return "number";
+    }
+
+    // Interface
+    return {
+      startState: function() {
+        return {
+          tokenize: null,
+          level: 0,
+          sol: true
+        };
+      },
+
+      token: function(stream, state) {
+        if(state.tokenize != null) {
+          return state.tokenize(stream, state);
+        }
+
+        if(stream.sol()) {
+          state.sol = true;
+        }
+
+        // WHITESPACE
+        if(stream.eatSpace()) {
+          state.tokenize = null;
+          return null;
+        }
+
+        var ch = stream.next();
+
+        // LINECOMMENT
+        if(ch == '/' && stream.eat('/')) {
+          state.tokenize = tokenLineComment;
+        }
+        // BLOCKCOMMENT
+        else if(ch == '/' && stream.eat('*')) {
+          state.tokenize = tokenBlockComment;
+        }
+        // TWO SYMBOL TOKENS
+        else if(isDoubleOperatorChar.test(ch+stream.peek())) {
+          stream.next();
+          state.tokenize = null;
+          return "operator";
+        }
+        // SINGLE SYMBOL TOKENS
+        else if(isSingleOperatorChar.test(ch)) {
+          state.tokenize = null;
+          return "operator";
+        }
+        // IDENT
+        else if(isNonDigit.test(ch)) {
+          state.tokenize = tokenIdent;
+        }
+        // Q-IDENT
+        else if(ch == "'" && stream.peek() && stream.peek() != "'") {
+          state.tokenize = tokenQIdent;
+        }
+        // STRING
+        else if(ch == '"') {
+          state.tokenize = tokenString;
+        }
+        // UNSIGNED_NUBER
+        else if(isDigit.test(ch)) {
+          state.tokenize = tokenUnsignedNuber;
+        }
+        // ERROR
+        else {
+          state.tokenize = null;
+          return "error";
+        }
+
+        return state.tokenize(stream, state);
+      },
+
+      indent: function(state, textAfter) {
+        if (state.tokenize != null) return CodeMirror.Pass;
+
+        var level = state.level;
+        if(/(algorithm)/.test(textAfter)) level--;
+        if(/(equation)/.test(textAfter)) level--;
+        if(/(initial algorithm)/.test(textAfter)) level--;
+        if(/(initial equation)/.test(textAfter)) level--;
+        if(/(end)/.test(textAfter)) level--;
+
+        if(level > 0)
+          return indentUnit*level;
+        else
+          return 0;
+      },
+
+      blockCommentStart: "/*",
+      blockCommentEnd: "*/",
+      lineComment: "//"
+    };
+  });
+
+  function words(str) {
+    var obj = {}, words = str.split(" ");
+    for (var i=0; i
+
+CodeMirror: MscGen mode
+
+
+
+
+
+
+
+
+
+

+
MscGen mode

+
+

+
+
Xù mode

+
+

+
+
MsGenny mode

+

+
+    

+      Simple mode for highlighting MscGen and two derived sequence
+      chart languages.
+    

+
+    
+
+    
MIME types defined:
+      text/x-mscgen
+      text/x-xu
+      text/x-msgenny
+    

+
+

diff --git a/public/codemirror/mode/mscgen/mscgen.js b/public/codemirror/mode/mscgen/mscgen.js
new file mode 100644
index 000000000..2cd6f4270
--- /dev/null
+++ b/public/codemirror/mode/mscgen/mscgen.js
@@ -0,0 +1,175 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// mode(s) for the sequence chart dsl's mscgen, xù and msgenny
+// For more information on mscgen, see the site of the original author:
+// http://www.mcternan.me.uk/mscgen
+//
+// This mode for mscgen and the two derivative languages were
+// originally made for use in the mscgen_js interpreter
+// (https://sverweij.github.io/mscgen_js)
+
+(function(mod) {
+  if ( typeof exports == "object" && typeof module == "object")// CommonJS
+    mod(require("../../lib/codemirror"));
+  else if ( typeof define == "function" && define.amd)// AMD
+    define(["../../lib/codemirror"], mod);
+  else// Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  var languages = {
+    mscgen: {
+      "keywords" : ["msc"],
+      "options" : ["hscale", "width", "arcgradient", "wordwraparcs"],
+      "constants" : ["true", "false", "on", "off"],
+      "attributes" : ["label", "idurl", "id", "url", "linecolor", "linecolour", "textcolor", "textcolour", "textbgcolor", "textbgcolour", "arclinecolor", "arclinecolour", "arctextcolor", "arctextcolour", "arctextbgcolor", "arctextbgcolour", "arcskip"],
+      "brackets" : ["\\{", "\\}"], // [ and  ] are brackets too, but these get handled in with lists
+      "arcsWords" : ["note", "abox", "rbox", "box"],
+      "arcsOthers" : ["\\|\\|\\|", "\\.\\.\\.", "---", "--", "<->", "==", "<<=>>", "<=>", "\\.\\.", "<<>>", "::", "<:>", "->", "=>>", "=>", ">>", ":>", "<-", "<<=", "<=", "<<", "<:", "x-", "-x"],
+      "singlecomment" : ["//", "#"],
+      "operators" : ["="]
+    },
+    xu: {
+      "keywords" : ["msc", "xu"],
+      "options" : ["hscale", "width", "arcgradient", "wordwraparcs", "watermark"],
+      "constants" : ["true", "false", "on", "off", "auto"],
+      "attributes" : ["label", "idurl", "id", "url", "linecolor", "linecolour", "textcolor", "textcolour", "textbgcolor", "textbgcolour", "arclinecolor", "arclinecolour", "arctextcolor", "arctextcolour", "arctextbgcolor", "arctextbgcolour", "arcskip"],
+      "brackets" : ["\\{", "\\}"],  // [ and  ] are brackets too, but these get handled in with lists
+      "arcsWords" : ["note", "abox", "rbox", "box", "alt", "else", "opt", "break", "par", "seq", "strict", "neg", "critical", "ignore", "consider", "assert", "loop", "ref", "exc"],
+      "arcsOthers" : ["\\|\\|\\|", "\\.\\.\\.", "---", "--", "<->", "==", "<<=>>", "<=>", "\\.\\.", "<<>>", "::", "<:>", "->", "=>>", "=>", ">>", ":>", "<-", "<<=", "<=", "<<", "<:", "x-", "-x"],
+      "singlecomment" : ["//", "#"],
+      "operators" : ["="]
+    },
+    msgenny: {
+      "keywords" : null,
+      "options" : ["hscale", "width", "arcgradient", "wordwraparcs", "watermark"],
+      "constants" : ["true", "false", "on", "off", "auto"],
+      "attributes" : null,
+      "brackets" : ["\\{", "\\}"],
+      "arcsWords" : ["note", "abox", "rbox", "box", "alt", "else", "opt", "break", "par", "seq", "strict", "neg", "critical", "ignore", "consider", "assert", "loop", "ref", "exc"],
+      "arcsOthers" : ["\\|\\|\\|", "\\.\\.\\.", "---", "--", "<->", "==", "<<=>>", "<=>", "\\.\\.", "<<>>", "::", "<:>", "->", "=>>", "=>", ">>", ":>", "<-", "<<=", "<=", "<<", "<:", "x-", "-x"],
+      "singlecomment" : ["//", "#"],
+      "operators" : ["="]
+    }
+  }
+
+  CodeMirror.defineMode("mscgen", function(_, modeConfig) {
+    var language = languages[modeConfig && modeConfig.language || "mscgen"]
+    return {
+      startState: startStateFn,
+      copyState: copyStateFn,
+      token: produceTokenFunction(language),
+      lineComment : "#",
+      blockCommentStart : "/*",
+      blockCommentEnd : "*/"
+    };
+  });
+
+  CodeMirror.defineMIME("text/x-mscgen", "mscgen");
+  CodeMirror.defineMIME("text/x-xu", {name: "mscgen", language: "xu"});
+  CodeMirror.defineMIME("text/x-msgenny", {name: "mscgen", language: "msgenny"});
+
+  function wordRegexpBoundary(pWords) {
+    return new RegExp("\\b(" + pWords.join("|") + ")\\b", "i");
+  }
+
+  function wordRegexp(pWords) {
+    return new RegExp("(" + pWords.join("|") + ")", "i");
+  }
+
+  function startStateFn() {
+    return {
+      inComment : false,
+      inString : false,
+      inAttributeList : false,
+      inScript : false
+    };
+  }
+
+  function copyStateFn(pState) {
+    return {
+      inComment : pState.inComment,
+      inString : pState.inString,
+      inAttributeList : pState.inAttributeList,
+      inScript : pState.inScript
+    };
+  }
+
+  function produceTokenFunction(pConfig) {
+
+    return function(pStream, pState) {
+      if (pStream.match(wordRegexp(pConfig.brackets), true, true)) {
+        return "bracket";
+      }
+      /* comments */
+      if (!pState.inComment) {
+        if (pStream.match(/\/\*[^\*\/]*/, true, true)) {
+          pState.inComment = true;
+          return "comment";
+        }
+        if (pStream.match(wordRegexp(pConfig.singlecomment), true, true)) {
+          pStream.skipToEnd();
+          return "comment";
+        }
+      }
+      if (pState.inComment) {
+        if (pStream.match(/[^\*\/]*\*\//, true, true))
+          pState.inComment = false;
+        else
+          pStream.skipToEnd();
+        return "comment";
+      }
+      /* strings */
+      if (!pState.inString && pStream.match(/\"(\\\"|[^\"])*/, true, true)) {
+        pState.inString = true;
+        return "string";
+      }
+      if (pState.inString) {
+        if (pStream.match(/[^\"]*\"/, true, true))
+          pState.inString = false;
+        else
+          pStream.skipToEnd();
+        return "string";
+      }
+      /* keywords & operators */
+      if (!!pConfig.keywords && pStream.match(wordRegexpBoundary(pConfig.keywords), true, true))
+        return "keyword";
+
+      if (pStream.match(wordRegexpBoundary(pConfig.options), true, true))
+        return "keyword";
+
+      if (pStream.match(wordRegexpBoundary(pConfig.arcsWords), true, true))
+        return "keyword";
+
+      if (pStream.match(wordRegexp(pConfig.arcsOthers), true, true))
+        return "keyword";
+
+      if (!!pConfig.operators && pStream.match(wordRegexp(pConfig.operators), true, true))
+        return "operator";
+
+      if (!!pConfig.constants && pStream.match(wordRegexp(pConfig.constants), true, true))
+        return "variable";
+
+      /* attribute lists */
+      if (!pConfig.inAttributeList && !!pConfig.attributes && pStream.match(/\[/, true, true)) {
+        pConfig.inAttributeList = true;
+        return "bracket";
+      }
+      if (pConfig.inAttributeList) {
+        if (pConfig.attributes !== null && pStream.match(wordRegexpBoundary(pConfig.attributes), true, true)) {
+          return "attribute";
+        }
+        if (pStream.match(/]/, true, true)) {
+          pConfig.inAttributeList = false;
+          return "bracket";
+        }
+      }
+
+      pStream.next();
+      return "base";
+    };
+  }
+
+});
diff --git a/public/codemirror/mode/mscgen/mscgen_test.js b/public/codemirror/mode/mscgen/mscgen_test.js
new file mode 100644
index 000000000..956c5758e
--- /dev/null
+++ b/public/codemirror/mode/mscgen/mscgen_test.js
@@ -0,0 +1,83 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({indentUnit: 2}, "mscgen");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)); }
+
+  MT("empty chart",
+     "[keyword msc][bracket {]",
+     "[base   ]",
+     "[bracket }]"
+   );
+
+  MT("comments",
+    "[comment // a single line comment]",
+    "[comment # another  single line comment /* and */ ignored here]",
+    "[comment /* A multi-line comment even though it contains]",
+    "[comment msc keywords and \"quoted text\"*/]");
+
+  MT("strings",
+    "[string \"// a string\"]",
+    "[string \"a string running over]",
+    "[string two lines\"]",
+    "[string \"with \\\"escaped quote\"]"
+  );
+
+  MT("xù/ msgenny keywords classify as 'base'",
+    "[base watermark]",
+    "[base alt loop opt ref else break par seq assert]"
+  );
+
+  MT("xù/ msgenny constants classify as 'base'",
+    "[base auto]"
+  );
+
+  MT("mscgen constants classify as 'variable'",
+    "[variable true]", "[variable false]", "[variable on]", "[variable off]"
+  );
+
+  MT("mscgen options classify as keyword",
+    "[keyword hscale]", "[keyword width]", "[keyword arcgradient]", "[keyword wordwraparcs]"
+  );
+
+  MT("mscgen arcs classify as keyword",
+    "[keyword note]","[keyword abox]","[keyword rbox]","[keyword box]",
+    "[keyword |||...---]", "[keyword ..--==::]",
+    "[keyword ->]", "[keyword <-]", "[keyword <->]",
+    "[keyword =>]", "[keyword <=]", "[keyword <=>]",
+    "[keyword =>>]", "[keyword <<=]", "[keyword <<=>>]",
+    "[keyword >>]", "[keyword <<]", "[keyword <<>>]",
+    "[keyword -x]", "[keyword x-]", "[keyword -X]", "[keyword X-]",
+    "[keyword :>]", "[keyword <:]", "[keyword <:>]"
+  );
+
+  MT("within an attribute list, attributes classify as attribute",
+    "[bracket [[][attribute label]",
+    "[attribute id]","[attribute url]","[attribute idurl]",
+    "[attribute linecolor]","[attribute linecolour]","[attribute textcolor]","[attribute textcolour]","[attribute textbgcolor]","[attribute textbgcolour]",
+    "[attribute arclinecolor]","[attribute arclinecolour]","[attribute arctextcolor]","[attribute arctextcolour]","[attribute arctextbgcolor]","[attribute arctextbgcolour]",
+    "[attribute arcskip][bracket ]]]"
+  );
+
+  MT("outside an attribute list, attributes classify as base",
+    "[base label]",
+    "[base id]","[base url]","[base idurl]",
+    "[base linecolor]","[base linecolour]","[base textcolor]","[base textcolour]","[base textbgcolor]","[base textbgcolour]",
+    "[base arclinecolor]","[base arclinecolour]","[base arctextcolor]","[base arctextcolour]","[base arctextbgcolor]","[base arctextbgcolour]",
+    "[base arcskip]"
+  );
+
+  MT("a typical program",
+    "[comment # typical mscgen program]",
+    "[keyword msc][base  ][bracket {]",
+    "[keyword wordwraparcs][operator =][variable true][base , ][keyword hscale][operator =][string \"0.8\"][base , ][keyword arcgradient][operator =][base 30;]",
+    "[base   a][bracket [[][attribute label][operator =][string \"Entity A\"][bracket ]]][base ,]",
+    "[base   b][bracket [[][attribute label][operator =][string \"Entity B\"][bracket ]]][base ,]",
+    "[base   c][bracket [[][attribute label][operator =][string \"Entity C\"][bracket ]]][base ;]",
+    "[base   a ][keyword =>>][base  b][bracket [[][attribute label][operator =][string \"Hello entity B\"][bracket ]]][base ;]",
+    "[base   a ][keyword <<][base  b][bracket [[][attribute label][operator =][string \"Here's an answer dude!\"][bracket ]]][base ;]",
+    "[base   c ][keyword :>][base  *][bracket [[][attribute label][operator =][string \"What about me?\"][base , ][attribute textcolor][operator =][base red][bracket ]]][base ;]",
+    "[bracket }]"
+  );
+})();
diff --git a/public/codemirror/mode/mscgen/msgenny_test.js b/public/codemirror/mode/mscgen/msgenny_test.js
new file mode 100644
index 000000000..edf9da09a
--- /dev/null
+++ b/public/codemirror/mode/mscgen/msgenny_test.js
@@ -0,0 +1,76 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({indentUnit: 2}, "text/x-msgenny");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1), "msgenny"); }
+
+  MT("comments",
+    "[comment // a single line comment]",
+    "[comment # another  single line comment /* and */ ignored here]",
+    "[comment /* A multi-line comment even though it contains]",
+    "[comment msc keywords and \"quoted text\"*/]");
+
+  MT("strings",
+    "[string \"// a string\"]",
+    "[string \"a string running over]",
+    "[string two lines\"]",
+    "[string \"with \\\"escaped quote\"]"
+  );
+
+  MT("xù/ msgenny keywords classify as 'keyword'",
+    "[keyword watermark]",
+    "[keyword alt]","[keyword loop]","[keyword opt]","[keyword ref]","[keyword else]","[keyword break]","[keyword par]","[keyword seq]","[keyword assert]"
+  );
+
+  MT("xù/ msgenny constants classify as 'variable'",
+    "[variable auto]",
+    "[variable true]", "[variable false]", "[variable on]", "[variable off]"
+  );
+
+  MT("mscgen options classify as keyword",
+    "[keyword hscale]", "[keyword width]", "[keyword arcgradient]", "[keyword wordwraparcs]"
+  );
+
+  MT("mscgen arcs classify as keyword",
+    "[keyword note]","[keyword abox]","[keyword rbox]","[keyword box]",
+    "[keyword |||...---]", "[keyword ..--==::]",
+    "[keyword ->]", "[keyword <-]", "[keyword <->]",
+    "[keyword =>]", "[keyword <=]", "[keyword <=>]",
+    "[keyword =>>]", "[keyword <<=]", "[keyword <<=>>]",
+    "[keyword >>]", "[keyword <<]", "[keyword <<>>]",
+    "[keyword -x]", "[keyword x-]", "[keyword -X]", "[keyword X-]",
+    "[keyword :>]", "[keyword <:]", "[keyword <:>]"
+  );
+
+  MT("within an attribute list, mscgen/ xù attributes classify as base",
+    "[base [[label]",
+    "[base idurl id url]",
+    "[base linecolor linecolour textcolor textcolour textbgcolor textbgcolour]",
+    "[base arclinecolor arclinecolour arctextcolor arctextcolour arctextbgcolor arctextbgcolour]",
+    "[base arcskip]]]"
+  );
+
+  MT("outside an attribute list, mscgen/ xù attributes classify as base",
+    "[base label]",
+    "[base idurl id url]",
+    "[base linecolor linecolour textcolor textcolour textbgcolor textbgcolour]",
+    "[base arclinecolor arclinecolour arctextcolor arctextcolour arctextbgcolor arctextbgcolour]",
+    "[base arcskip]"
+  );
+
+  MT("a typical program",
+    "[comment # typical msgenny program]",
+    "[keyword wordwraparcs][operator =][variable true][base , ][keyword hscale][operator =][string \"0.8\"][base , ][keyword arcgradient][operator =][base 30;]",
+    "[base   a : ][string \"Entity A\"][base ,]",
+    "[base   b : Entity B,]",
+    "[base   c : Entity C;]",
+    "[base   a ][keyword =>>][base  b: ][string \"Hello entity B\"][base ;]",
+    "[base   a ][keyword alt][base  c][bracket {]",
+    "[base     a ][keyword <<][base  b: ][string \"Here's an answer dude!\"][base ;]",
+    "[keyword ---][base : ][string \"sorry, won't march - comm glitch\"]",
+    "[base     a ][keyword x-][base  b: ][string \"Here's an answer dude! (won't arrive...)\"][base ;]",
+    "[bracket }]",
+    "[base   c ][keyword :>][base  *: What about me?;]"
+  );
+})();
diff --git a/public/codemirror/mode/mscgen/xu_test.js b/public/codemirror/mode/mscgen/xu_test.js
new file mode 100644
index 000000000..950aeca1f
--- /dev/null
+++ b/public/codemirror/mode/mscgen/xu_test.js
@@ -0,0 +1,86 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({indentUnit: 2}, "text/x-xu");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1), "xu"); }
+
+  MT("empty chart",
+     "[keyword msc][bracket {]",
+     "[base   ]",
+     "[bracket }]"
+  );
+
+  MT("empty chart",
+     "[keyword xu][bracket {]",
+     "[base   ]",
+     "[bracket }]"
+  );
+
+  MT("comments",
+    "[comment // a single line comment]",
+    "[comment # another  single line comment /* and */ ignored here]",
+    "[comment /* A multi-line comment even though it contains]",
+    "[comment msc keywords and \"quoted text\"*/]");
+
+  MT("strings",
+    "[string \"// a string\"]",
+    "[string \"a string running over]",
+    "[string two lines\"]",
+    "[string \"with \\\"escaped quote\"]"
+  );
+
+  MT("xù/ msgenny keywords classify as 'keyword'",
+    "[keyword watermark]",
+    "[keyword alt]","[keyword loop]","[keyword opt]","[keyword ref]","[keyword else]","[keyword break]","[keyword par]","[keyword seq]","[keyword assert]"
+  );
+
+  MT("xù/ msgenny constants classify as 'variable'",
+    "[variable auto]",
+    "[variable true]", "[variable false]", "[variable on]", "[variable off]"
+  );
+
+  MT("mscgen options classify as keyword",
+    "[keyword hscale]", "[keyword width]", "[keyword arcgradient]", "[keyword wordwraparcs]"
+  );
+
+  MT("mscgen arcs classify as keyword",
+    "[keyword note]","[keyword abox]","[keyword rbox]","[keyword box]",
+    "[keyword |||...---]", "[keyword ..--==::]",
+    "[keyword ->]", "[keyword <-]", "[keyword <->]",
+    "[keyword =>]", "[keyword <=]", "[keyword <=>]",
+    "[keyword =>>]", "[keyword <<=]", "[keyword <<=>>]",
+    "[keyword >>]", "[keyword <<]", "[keyword <<>>]",
+    "[keyword -x]", "[keyword x-]", "[keyword -X]", "[keyword X-]",
+    "[keyword :>]", "[keyword <:]", "[keyword <:>]"
+  );
+
+  MT("within an attribute list, attributes classify as attribute",
+    "[bracket [[][attribute label]",
+    "[attribute id]","[attribute url]","[attribute idurl]",
+    "[attribute linecolor]","[attribute linecolour]","[attribute textcolor]","[attribute textcolour]","[attribute textbgcolor]","[attribute textbgcolour]",
+    "[attribute arclinecolor]","[attribute arclinecolour]","[attribute arctextcolor]","[attribute arctextcolour]","[attribute arctextbgcolor]","[attribute arctextbgcolour]",
+    "[attribute arcskip][bracket ]]]"
+  );
+
+  MT("outside an attribute list, attributes classify as base",
+    "[base label]",
+    "[base id]","[base url]","[base idurl]",
+    "[base linecolor]","[base linecolour]","[base textcolor]","[base textcolour]","[base textbgcolor]","[base textbgcolour]",
+    "[base arclinecolor]","[base arclinecolour]","[base arctextcolor]","[base arctextcolour]","[base arctextbgcolor]","[base arctextbgcolour]",
+    "[base arcskip]"
+  );
+
+  MT("a typical program",
+    "[comment # typical xu program]",
+    "[keyword xu][base  ][bracket {]",
+    "[keyword wordwraparcs][operator =][string \"true\"][base , ][keyword hscale][operator =][string \"0.8\"][base , ][keyword arcgradient][operator =][base 30, ][keyword width][operator =][variable auto][base ;]",
+    "[base   a][bracket [[][attribute label][operator =][string \"Entity A\"][bracket ]]][base ,]",
+    "[base   b][bracket [[][attribute label][operator =][string \"Entity B\"][bracket ]]][base ,]",
+    "[base   c][bracket [[][attribute label][operator =][string \"Entity C\"][bracket ]]][base ;]",
+    "[base   a ][keyword =>>][base  b][bracket [[][attribute label][operator =][string \"Hello entity B\"][bracket ]]][base ;]",
+    "[base   a ][keyword <<][base  b][bracket [[][attribute label][operator =][string \"Here's an answer dude!\"][bracket ]]][base ;]",
+    "[base   c ][keyword :>][base  *][bracket [[][attribute label][operator =][string \"What about me?\"][base , ][attribute textcolor][operator =][base red][bracket ]]][base ;]",
+    "[bracket }]"
+  );
+})();
diff --git a/public/codemirror/mode/mumps/index.html b/public/codemirror/mode/mumps/index.html
new file mode 100644
index 000000000..b1f92c213
--- /dev/null
+++ b/public/codemirror/mode/mumps/index.html
@@ -0,0 +1,85 @@
+
+
+CodeMirror: MUMPS mode
+
+
+
+
+
+
+
+
+
+

+
MUMPS mode

+
+
+

+    
+
+  

diff --git a/public/codemirror/mode/mumps/mumps.js b/public/codemirror/mode/mumps/mumps.js
new file mode 100644
index 000000000..469f8c3d1
--- /dev/null
+++ b/public/codemirror/mode/mumps/mumps.js
@@ -0,0 +1,148 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+/*
+  This MUMPS Language script was constructed using vbscript.js as a template.
+*/
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineMode("mumps", function() {
+    function wordRegexp(words) {
+      return new RegExp("^((" + words.join(")|(") + "))\\b", "i");
+    }
+
+    var singleOperators = new RegExp("^[\\+\\-\\*/&#!_?\\\\<>=\\'\\[\\]]");
+    var doubleOperators = new RegExp("^(('=)|(<=)|(>=)|('>)|('<)|([[)|(]])|(^$))");
+    var singleDelimiters = new RegExp("^[\\.,:]");
+    var brackets = new RegExp("[()]");
+    var identifiers = new RegExp("^[%A-Za-z][A-Za-z0-9]*");
+    var commandKeywords = ["break","close","do","else","for","goto", "halt", "hang", "if", "job","kill","lock","merge","new","open", "quit", "read", "set", "tcommit", "trollback", "tstart", "use", "view", "write", "xecute", "b","c","d","e","f","g", "h", "i", "j","k","l","m","n","o", "q", "r", "s", "tc", "tro", "ts", "u", "v", "w", "x"];
+    // The following list includes instrinsic functions _and_ special variables
+    var intrinsicFuncsWords = ["\\$ascii", "\\$char", "\\$data", "\\$ecode", "\\$estack", "\\$etrap", "\\$extract", "\\$find", "\\$fnumber", "\\$get", "\\$horolog", "\\$io", "\\$increment", "\\$job", "\\$justify", "\\$length", "\\$name", "\\$next", "\\$order", "\\$piece", "\\$qlength", "\\$qsubscript", "\\$query", "\\$quit", "\\$random", "\\$reverse", "\\$select", "\\$stack", "\\$test", "\\$text", "\\$translate", "\\$view", "\\$x", "\\$y", "\\$a", "\\$c", "\\$d", "\\$e", "\\$ec", "\\$es", "\\$et", "\\$f", "\\$fn", "\\$g", "\\$h", "\\$i", "\\$j", "\\$l", "\\$n", "\\$na", "\\$o", "\\$p", "\\$q", "\\$ql", "\\$qs", "\\$r", "\\$re", "\\$s", "\\$st", "\\$t", "\\$tr", "\\$v", "\\$z"];
+    var intrinsicFuncs = wordRegexp(intrinsicFuncsWords);
+    var command = wordRegexp(commandKeywords);
+
+    function tokenBase(stream, state) {
+      if (stream.sol()) {
+        state.label = true;
+        state.commandMode = 0;
+      }
+
+      // The  character has meaning in MUMPS. Ignoring consecutive
+      // spaces would interfere with interpreting whether the next non-space
+      // character belongs to the command or argument context.
+
+      // Examine each character and update a mode variable whose interpretation is:
+      //   >0 => command    0 => argument    <0 => command post-conditional
+      var ch = stream.peek();
+
+      if (ch == " " || ch == "\t") { // Pre-process 
+        state.label = false;
+        if (state.commandMode == 0)
+          state.commandMode = 1;
+        else if ((state.commandMode < 0) || (state.commandMode == 2))
+          state.commandMode = 0;
+      } else if ((ch != ".") && (state.commandMode > 0)) {
+        if (ch == ":")
+          state.commandMode = -1;   // SIS - Command post-conditional
+        else
+          state.commandMode = 2;
+      }
+
+      // Do not color parameter list as line tag
+      if ((ch === "(") || (ch === "\u0009"))
+        state.label = false;
+
+      // MUMPS comment starts with ";"
+      if (ch === ";") {
+        stream.skipToEnd();
+        return "comment";
+      }
+
+      // Number Literals // SIS/RLM - MUMPS permits canonic number followed by concatenate operator
+      if (stream.match(/^[-+]?\d+(\.\d+)?([eE][-+]?\d+)?/))
+        return "number";
+
+      // Handle Strings
+      if (ch == '"') {
+        if (stream.skipTo('"')) {
+          stream.next();
+          return "string";
+        } else {
+          stream.skipToEnd();
+          return "error";
+        }
+      }
+
+      // Handle operators and Delimiters
+      if (stream.match(doubleOperators) || stream.match(singleOperators))
+        return "operator";
+
+      // Prevents leading "." in DO block from falling through to error
+      if (stream.match(singleDelimiters))
+        return null;
+
+      if (brackets.test(ch)) {
+        stream.next();
+        return "bracket";
+      }
+
+      if (state.commandMode > 0 && stream.match(command))
+        return "variable-2";
+
+      if (stream.match(intrinsicFuncs))
+        return "builtin";
+
+      if (stream.match(identifiers))
+        return "variable";
+
+      // Detect dollar-sign when not a documented intrinsic function
+      // "^" may introduce a GVN or SSVN - Color same as function
+      if (ch === "$" || ch === "^") {
+        stream.next();
+        return "builtin";
+      }
+
+      // MUMPS Indirection
+      if (ch === "@") {
+        stream.next();
+        return "string-2";
+      }
+
+      if (/[\w%]/.test(ch)) {
+        stream.eatWhile(/[\w%]/);
+        return "variable";
+      }
+
+      // Handle non-detected items
+      stream.next();
+      return "error";
+    }
+
+    return {
+      startState: function() {
+        return {
+          label: false,
+          commandMode: 0
+        };
+      },
+
+      token: function(stream, state) {
+        var style = tokenBase(stream, state);
+        if (state.label) return "tag";
+        return style;
+      }
+    };
+  });
+
+  CodeMirror.defineMIME("text/x-mumps", "mumps");
+});
diff --git a/public/codemirror/mode/nginx/index.html b/public/codemirror/mode/nginx/index.html
new file mode 100644
index 000000000..03cf67149
--- /dev/null
+++ b/public/codemirror/mode/nginx/index.html
@@ -0,0 +1,181 @@
+
+
+CodeMirror: NGINX mode
+
+
+
+
+
+
+
+    
+  
+
+  
+
+
+

+
NGINX mode

+

+    
+
+    
MIME types defined: text/nginx.

+
+  

diff --git a/public/codemirror/mode/nginx/nginx.js b/public/codemirror/mode/nginx/nginx.js
new file mode 100644
index 000000000..00a322492
--- /dev/null
+++ b/public/codemirror/mode/nginx/nginx.js
@@ -0,0 +1,178 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("nginx", function(config) {
+
+  function words(str) {
+    var obj = {}, words = str.split(" ");
+    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+    return obj;
+  }
+
+  var keywords = words(
+    /* ngxDirectiveControl */ "break return rewrite set" +
+    /* ngxDirective */ " accept_mutex accept_mutex_delay access_log add_after_body add_before_body add_header addition_types aio alias allow ancient_browser ancient_browser_value auth_basic auth_basic_user_file auth_http auth_http_header auth_http_timeout autoindex autoindex_exact_size autoindex_localtime charset charset_types client_body_buffer_size client_body_in_file_only client_body_in_single_buffer client_body_temp_path client_body_timeout client_header_buffer_size client_header_timeout client_max_body_size connection_pool_size create_full_put_path daemon dav_access dav_methods debug_connection debug_points default_type degradation degrade deny devpoll_changes devpoll_events directio directio_alignment empty_gif env epoll_events error_log eventport_events expires fastcgi_bind fastcgi_buffer_size fastcgi_buffers fastcgi_busy_buffers_size fastcgi_cache fastcgi_cache_key fastcgi_cache_methods fastcgi_cache_min_uses fastcgi_cache_path fastcgi_cache_use_stale fastcgi_cache_valid fastcgi_catch_stderr fastcgi_connect_timeout fastcgi_hide_header fastcgi_ignore_client_abort fastcgi_ignore_headers fastcgi_index fastcgi_intercept_errors fastcgi_max_temp_file_size fastcgi_next_upstream fastcgi_param fastcgi_pass_header fastcgi_pass_request_body fastcgi_pass_request_headers fastcgi_read_timeout fastcgi_send_lowat fastcgi_send_timeout fastcgi_split_path_info fastcgi_store fastcgi_store_access fastcgi_temp_file_write_size fastcgi_temp_path fastcgi_upstream_fail_timeout fastcgi_upstream_max_fails flv geoip_city geoip_country google_perftools_profiles gzip gzip_buffers gzip_comp_level gzip_disable gzip_hash gzip_http_version gzip_min_length gzip_no_buffer gzip_proxied gzip_static gzip_types gzip_vary gzip_window if_modified_since ignore_invalid_headers image_filter image_filter_buffer image_filter_jpeg_quality image_filter_transparency imap_auth imap_capabilities imap_client_buffer index ip_hash keepalive_requests keepalive_timeout kqueue_changes kqueue_events large_client_header_buffers limit_conn limit_conn_log_level limit_rate limit_rate_after limit_req limit_req_log_level limit_req_zone limit_zone lingering_time lingering_timeout lock_file log_format log_not_found log_subrequest map_hash_bucket_size map_hash_max_size master_process memcached_bind memcached_buffer_size memcached_connect_timeout memcached_next_upstream memcached_read_timeout memcached_send_timeout memcached_upstream_fail_timeout memcached_upstream_max_fails merge_slashes min_delete_depth modern_browser modern_browser_value msie_padding msie_refresh multi_accept open_file_cache open_file_cache_errors open_file_cache_events open_file_cache_min_uses open_file_cache_valid open_log_file_cache output_buffers override_charset perl perl_modules perl_require perl_set pid pop3_auth pop3_capabilities port_in_redirect postpone_gzipping postpone_output protocol proxy proxy_bind proxy_buffer proxy_buffer_size proxy_buffering proxy_buffers proxy_busy_buffers_size proxy_cache proxy_cache_key proxy_cache_methods proxy_cache_min_uses proxy_cache_path proxy_cache_use_stale proxy_cache_valid proxy_connect_timeout proxy_headers_hash_bucket_size proxy_headers_hash_max_size proxy_hide_header proxy_ignore_client_abort proxy_ignore_headers proxy_intercept_errors proxy_max_temp_file_size proxy_method proxy_next_upstream proxy_pass_error_message proxy_pass_header proxy_pass_request_body proxy_pass_request_headers proxy_read_timeout proxy_redirect proxy_send_lowat proxy_send_timeout proxy_set_body proxy_set_header proxy_ssl_session_reuse proxy_store proxy_store_access proxy_temp_file_write_size proxy_temp_path proxy_timeout proxy_upstream_fail_timeout proxy_upstream_max_fails random_index read_ahead real_ip_header recursive_error_pages request_pool_size reset_timedout_connection resolver resolver_timeout rewrite_log rtsig_overflow_events rtsig_overflow_test rtsig_overflow_threshold rtsig_signo satisfy secure_link_secret send_lowat send_timeout sendfile sendfile_max_chunk server_name_in_redirect server_names_hash_bucket_size server_names_hash_max_size server_tokens set_real_ip_from smtp_auth smtp_capabilities smtp_client_buffer smtp_greeting_delay so_keepalive source_charset ssi ssi_ignore_recycled_buffers ssi_min_file_chunk ssi_silent_errors ssi_types ssi_value_length ssl ssl_certificate ssl_certificate_key ssl_ciphers ssl_client_certificate ssl_crl ssl_dhparam ssl_engine ssl_prefer_server_ciphers ssl_protocols ssl_session_cache ssl_session_timeout ssl_verify_client ssl_verify_depth starttls stub_status sub_filter sub_filter_once sub_filter_types tcp_nodelay tcp_nopush thread_stack_size timeout timer_resolution types_hash_bucket_size types_hash_max_size underscores_in_headers uninitialized_variable_warn use user userid userid_domain userid_expires userid_mark userid_name userid_p3p userid_path userid_service valid_referers variables_hash_bucket_size variables_hash_max_size worker_connections worker_cpu_affinity worker_priority worker_processes worker_rlimit_core worker_rlimit_nofile worker_rlimit_sigpending worker_threads working_directory xclient xml_entities xslt_stylesheet xslt_typesdrew@li229-23"
+    );
+
+  var keywords_block = words(
+    /* ngxDirectiveBlock */ "http mail events server types location upstream charset_map limit_except if geo map"
+    );
+
+  var keywords_important = words(
+    /* ngxDirectiveImportant */ "include root server server_name listen internal proxy_pass memcached_pass fastcgi_pass try_files"
+    );
+
+  var indentUnit = config.indentUnit, type;
+  function ret(style, tp) {type = tp; return style;}
+
+  function tokenBase(stream, state) {
+
+
+    stream.eatWhile(/[\w\$_]/);
+
+    var cur = stream.current();
+
+
+    if (keywords.propertyIsEnumerable(cur)) {
+      return "keyword";
+    }
+    else if (keywords_block.propertyIsEnumerable(cur)) {
+      return "variable-2";
+    }
+    else if (keywords_important.propertyIsEnumerable(cur)) {
+      return "string-2";
+    }
+    /**/
+
+    var ch = stream.next();
+    if (ch == "@") {stream.eatWhile(/[\w\\\-]/); return ret("meta", stream.current());}
+    else if (ch == "/" && stream.eat("*")) {
+      state.tokenize = tokenCComment;
+      return tokenCComment(stream, state);
+    }
+    else if (ch == "<" && stream.eat("!")) {
+      state.tokenize = tokenSGMLComment;
+      return tokenSGMLComment(stream, state);
+    }
+    else if (ch == "=") ret(null, "compare");
+    else if ((ch == "~" || ch == "|") && stream.eat("=")) return ret(null, "compare");
+    else if (ch == "\"" || ch == "'") {
+      state.tokenize = tokenString(ch);
+      return state.tokenize(stream, state);
+    }
+    else if (ch == "#") {
+      stream.skipToEnd();
+      return ret("comment", "comment");
+    }
+    else if (ch == "!") {
+      stream.match(/^\s*\w*/);
+      return ret("keyword", "important");
+    }
+    else if (/\d/.test(ch)) {
+      stream.eatWhile(/[\w.%]/);
+      return ret("number", "unit");
+    }
+    else if (/[,.+>*\/]/.test(ch)) {
+      return ret(null, "select-op");
+    }
+    else if (/[;{}:\[\]]/.test(ch)) {
+      return ret(null, ch);
+    }
+    else {
+      stream.eatWhile(/[\w\\\-]/);
+      return ret("variable", "variable");
+    }
+  }
+
+  function tokenCComment(stream, state) {
+    var maybeEnd = false, ch;
+    while ((ch = stream.next()) != null) {
+      if (maybeEnd && ch == "/") {
+        state.tokenize = tokenBase;
+        break;
+      }
+      maybeEnd = (ch == "*");
+    }
+    return ret("comment", "comment");
+  }
+
+  function tokenSGMLComment(stream, state) {
+    var dashes = 0, ch;
+    while ((ch = stream.next()) != null) {
+      if (dashes >= 2 && ch == ">") {
+        state.tokenize = tokenBase;
+        break;
+      }
+      dashes = (ch == "-") ? dashes + 1 : 0;
+    }
+    return ret("comment", "comment");
+  }
+
+  function tokenString(quote) {
+    return function(stream, state) {
+      var escaped = false, ch;
+      while ((ch = stream.next()) != null) {
+        if (ch == quote && !escaped)
+          break;
+        escaped = !escaped && ch == "\\";
+      }
+      if (!escaped) state.tokenize = tokenBase;
+      return ret("string", "string");
+    };
+  }
+
+  return {
+    startState: function(base) {
+      return {tokenize: tokenBase,
+              baseIndent: base || 0,
+              stack: []};
+    },
+
+    token: function(stream, state) {
+      if (stream.eatSpace()) return null;
+      type = null;
+      var style = state.tokenize(stream, state);
+
+      var context = state.stack[state.stack.length-1];
+      if (type == "hash" && context == "rule") style = "atom";
+      else if (style == "variable") {
+        if (context == "rule") style = "number";
+        else if (!context || context == "@media{") style = "tag";
+      }
+
+      if (context == "rule" && /^[\{\};]$/.test(type))
+        state.stack.pop();
+      if (type == "{") {
+        if (context == "@media") state.stack[state.stack.length-1] = "@media{";
+        else state.stack.push("{");
+      }
+      else if (type == "}") state.stack.pop();
+      else if (type == "@media") state.stack.push("@media");
+      else if (context == "{" && type != "comment") state.stack.push("rule");
+      return style;
+    },
+
+    indent: function(state, textAfter) {
+      var n = state.stack.length;
+      if (/^\}/.test(textAfter))
+        n -= state.stack[state.stack.length-1] == "rule" ? 2 : 1;
+      return state.baseIndent + n * indentUnit;
+    },
+
+    electricChars: "}"
+  };
+});
+
+CodeMirror.defineMIME("text/x-nginx-conf", "nginx");
+
+});
diff --git a/public/codemirror/mode/nsis/index.html b/public/codemirror/mode/nsis/index.html
new file mode 100644
index 000000000..2afae87f0
--- /dev/null
+++ b/public/codemirror/mode/nsis/index.html
@@ -0,0 +1,80 @@
+
+
+CodeMirror: NSIS mode
+
+
+
+
+
+
+
+
+
+
+
+

+
NSIS mode

+
+
+
+
+
+
+
MIME types defined: text/x-nsis.

+

\ No newline at end of file
diff --git a/public/codemirror/mode/nsis/nsis.js b/public/codemirror/mode/nsis/nsis.js
new file mode 100644
index 000000000..dc8c74cdf
--- /dev/null
+++ b/public/codemirror/mode/nsis/nsis.js
@@ -0,0 +1,95 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// Author: Jan T. Sott (http://github.com/idleberg)
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../../addon/mode/simple"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../../addon/mode/simple"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineSimpleMode("nsis",{
+  start:[
+    // Numbers
+    {regex: /(?:[+-]?)(?:0x[\d,a-f]+)|(?:0o[0-7]+)|(?:0b[0,1]+)|(?:\d+.?\d*)/, token: "number"},
+
+    // Strings
+    { regex: /"(?:[^\\"]|\\.)*"?/, token: "string" },
+    { regex: /'(?:[^\\']|\\.)*'?/, token: "string" },
+    { regex: /`(?:[^\\`]|\\.)*`?/, token: "string" },
+
+    // Compile Time Commands
+    {regex: /^\s*(?:\!(include|addincludedir|addplugindir|appendfile|cd|delfile|echo|error|execute|packhdr|finalize|getdllversion|system|tempfile|warning|verbose|define|undef|insertmacro|makensis|searchparse|searchreplace))\b/, token: "keyword"},
+
+    // Conditional Compilation
+    {regex: /^\s*(?:\!(if(?:n?def)?|ifmacron?def|macro))\b/, token: "keyword", indent: true},
+    {regex: /^\s*(?:\!(else|endif|macroend))\b/, token: "keyword", dedent: true},
+
+    // Runtime Commands
+    {regex: /^\s*(?:Abort|AddBrandingImage|AddSize|AllowRootDirInstall|AllowSkipFiles|AutoCloseWindow|BGFont|BGGradient|BrandingText|BringToFront|Call|CallInstDLL|Caption|ChangeUI|CheckBitmap|ClearErrors|CompletedText|ComponentText|CopyFiles|CRCCheck|CreateDirectory|CreateFont|CreateShortCut|Delete|DeleteINISec|DeleteINIStr|DeleteRegKey|DeleteRegValue|DetailPrint|DetailsButtonText|DirText|DirVar|DirVerify|EnableWindow|EnumRegKey|EnumRegValue|Exch|Exec|ExecShell|ExecWait|ExpandEnvStrings|File|FileBufSize|FileClose|FileErrorText|FileOpen|FileRead|FileReadByte|FileReadUTF16LE|FileReadWord|FileWriteUTF16LE|FileSeek|FileWrite|FileWriteByte|FileWriteWord|FindClose|FindFirst|FindNext|FindWindow|FlushINI|GetCurInstType|GetCurrentAddress|GetDlgItem|GetDLLVersion|GetDLLVersionLocal|GetErrorLevel|GetFileTime|GetFileTimeLocal|GetFullPathName|GetFunctionAddress|GetInstDirError|GetLabelAddress|GetTempFileName|Goto|HideWindow|Icon|IfAbort|IfErrors|IfFileExists|IfRebootFlag|IfSilent|InitPluginsDir|InstallButtonText|InstallColors|InstallDir|InstallDirRegKey|InstProgressFlags|InstType|InstTypeGetText|InstTypeSetText|IntCmp|IntCmpU|IntFmt|IntOp|IsWindow|LangString|LicenseBkColor|LicenseData|LicenseForceSelection|LicenseLangString|LicenseText|LoadLanguageFile|LockWindow|LogSet|LogText|ManifestDPIAware|ManifestSupportedOS|MessageBox|MiscButtonText|Name|Nop|OutFile|Page|PageCallbacks|Pop|Push|Quit|ReadEnvStr|ReadINIStr|ReadRegDWORD|ReadRegStr|Reboot|RegDLL|Rename|RequestExecutionLevel|ReserveFile|Return|RMDir|SearchPath|SectionGetFlags|SectionGetInstTypes|SectionGetSize|SectionGetText|SectionIn|SectionSetFlags|SectionSetInstTypes|SectionSetSize|SectionSetText|SendMessage|SetAutoClose|SetBrandingImage|SetCompress|SetCompressor|SetCompressorDictSize|SetCtlColors|SetCurInstType|SetDatablockOptimize|SetDateSave|SetDetailsPrint|SetDetailsView|SetErrorLevel|SetErrors|SetFileAttributes|SetFont|SetOutPath|SetOverwrite|SetRebootFlag|SetRegView|SetShellVarContext|SetSilent|ShowInstDetails|ShowUninstDetails|ShowWindow|SilentInstall|SilentUnInstall|Sleep|SpaceTexts|StrCmp|StrCmpS|StrCpy|StrLen|SubCaption|Unicode|UninstallButtonText|UninstallCaption|UninstallIcon|UninstallSubCaption|UninstallText|UninstPage|UnRegDLL|Var|VIAddVersionKey|VIFileVersion|VIProductVersion|WindowIcon|WriteINIStr|WriteRegBin|WriteRegDWORD|WriteRegExpandStr|WriteRegStr|WriteUninstaller|XPStyle)\b/, token: "keyword"},
+    {regex: /^\s*(?:Function|PageEx|Section(?:Group)?)\b/, token: "keyword", indent: true},
+    {regex: /^\s*(?:(Function|PageEx|Section(?:Group)?)End)\b/, token: "keyword", dedent: true},
+
+    // Command Options
+    {regex: /\b(?:ARCHIVE|FILE_ATTRIBUTE_ARCHIVE|FILE_ATTRIBUTE_HIDDEN|FILE_ATTRIBUTE_NORMAL|FILE_ATTRIBUTE_OFFLINE|FILE_ATTRIBUTE_READONLY|FILE_ATTRIBUTE_SYSTEM|FILE_ATTRIBUTE_TEMPORARY|HIDDEN|HKCC|HKCR|HKCU|HKDD|HKEY_CLASSES_ROOT|HKEY_CURRENT_CONFIG|HKEY_CURRENT_USER|HKEY_DYN_DATA|HKEY_LOCAL_MACHINE|HKEY_PERFORMANCE_DATA|HKEY_USERS|HKLM|HKPD|HKU|IDABORT|IDCANCEL|IDD_DIR|IDD_INST|IDD_INSTFILES|IDD_LICENSE|IDD_SELCOM|IDD_UNINST|IDD_VERIFY|IDIGNORE|IDNO|IDOK|IDRETRY|IDYES|MB_ABORTRETRYIGNORE|MB_DEFBUTTON1|MB_DEFBUTTON2|MB_DEFBUTTON3|MB_DEFBUTTON4|MB_ICONEXCLAMATION|MB_ICONINFORMATION|MB_ICONQUESTION|MB_ICONSTOP|MB_OK|MB_OKCANCEL|MB_RETRYCANCEL|MB_RIGHT|MB_RTLREADING|MB_SETFOREGROUND|MB_TOPMOST|MB_USERICON|MB_YESNO|MB_YESNOCANCEL|NORMAL|OFFLINE|READONLY|SHCTX|SHELL_CONTEXT|SW_HIDE|SW_SHOWDEFAULT|SW_SHOWMAXIMIZED|SW_SHOWMINIMIZED|SW_SHOWNORMAL|SYSTEM|TEMPORARY)\b/, token: "atom"},
+    {regex: /\b(?:admin|all|auto|both|bottom|bzip2|components|current|custom|directory|force|hide|highest|ifdiff|ifnewer|instfiles|lastused|leave|left|license|listonly|lzma|nevershow|none|normal|notset|right|show|silent|silentlog|textonly|top|try|un\.components|un\.custom|un\.directory|un\.instfiles|un\.license|uninstConfirm|user|Win10|Win7|Win8|WinVista|zlib)\b/, token: "builtin"},
+
+    // LogicLib.nsh
+    {regex: /\$\{(?:And(?:If(?:Not)?|Unless)|Break|Case(?:Else)?|Continue|Default|Do(?:Until|While)?|Else(?:If(?:Not)?|Unless)?|End(?:If|Select|Switch)|Exit(?:Do|For|While)|For(?:Each)?|If(?:Cmd|Not(?:Then)?|Then)?|Loop(?:Until|While)?|Or(?:If(?:Not)?|Unless)|Select|Switch|Unless|While)\}/, token: "variable-2", indent: true},
+
+    // FileFunc.nsh
+    {regex: /\$\{(?:BannerTrimPath|DirState|DriveSpace|Get(BaseName|Drives|ExeName|ExePath|FileAttributes|FileExt|FileName|FileVersion|Options|OptionsS|Parameters|Parent|Root|Size|Time)|Locate|RefreshShellIcons)\}/, token: "variable-2", dedent: true},
+
+    // Memento.nsh
+    {regex: /\$\{(?:Memento(?:Section(?:Done|End|Restore|Save)?|UnselectedSection))\}/, token: "variable-2", dedent: true},
+
+    // TextFunc.nsh
+    {regex: /\$\{(?:Config(?:Read|ReadS|Write|WriteS)|File(?:Join|ReadFromEnd|Recode)|Line(?:Find|Read|Sum)|Text(?:Compare|CompareS)|TrimNewLines)\}/, token: "variable-2", dedent: true},
+
+    // WinVer.nsh
+    {regex: /\$\{(?:(?:At(?:Least|Most)|Is)(?:ServicePack|Win(?:7|8|10|95|98|200(?:0|3|8(?:R2)?)|ME|NT4|Vista|XP))|Is(?:NT|Server))\}/, token: "variable", dedent: true},
+
+    // WordFunc.nsh
+    {regex: /\$\{(?:StrFilterS?|Version(?:Compare|Convert)|Word(?:AddS?|Find(?:(?:2|3)X)?S?|InsertS?|ReplaceS?))\}/, token: "variable-2", dedent: true},
+
+    // x64.nsh
+    {regex: /\$\{(?:RunningX64)\}/, token: "variable", dedent: true},
+    {regex: /\$\{(?:Disable|Enable)X64FSRedirection\}/, token: "variable-2", dedent: true},
+
+    // Line Comment
+    {regex: /(#|;).*/, token: "comment"},
+
+    // Block Comment
+    {regex: /\/\*/, token: "comment", next: "comment"},
+
+    // Operator
+    {regex: /[-+\/*=<>!]+/, token: "operator"},
+
+    // Variable
+    {regex: /\$\w+/, token: "variable"},
+
+    // Constant
+    {regex: /\${[\w\.:-]+}/, token: "variable-2"},
+
+    // Language String
+    {regex: /\$\([\w\.:-]+\)/, token: "variable-3"}
+  ],
+  comment: [
+    {regex: /.*?\*\//, token: "comment", next: "start"},
+    {regex: /.*/, token: "comment"}
+  ],
+  meta: {
+    electricInput: /^\s*((Function|PageEx|Section|Section(Group)?)End|(\!(endif|macroend))|\$\{(End(If|Unless|While)|Loop(Until)|Next)\})$/,
+    blockCommentStart: "/*",
+    blockCommentEnd: "*/",
+    lineComment: ["#", ";"]
+  }
+});
+
+CodeMirror.defineMIME("text/x-nsis", "nsis");
+});
diff --git a/public/codemirror/mode/ntriples/index.html b/public/codemirror/mode/ntriples/index.html
new file mode 100644
index 000000000..1355e7189
--- /dev/null
+++ b/public/codemirror/mode/ntriples/index.html
@@ -0,0 +1,45 @@
+
+
+CodeMirror: NTriples mode
+
+
+
+
+
+
+
+
+
+

+
NTriples mode

+

+
+

+
+    
+    
MIME types defined: text/n-triples.

+  

diff --git a/public/codemirror/mode/ntriples/ntriples.js b/public/codemirror/mode/ntriples/ntriples.js
new file mode 100644
index 000000000..0524b1e8a
--- /dev/null
+++ b/public/codemirror/mode/ntriples/ntriples.js
@@ -0,0 +1,186 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+/**********************************************************
+* This script provides syntax highlighting support for
+* the Ntriples format.
+* Ntriples format specification:
+*     http://www.w3.org/TR/rdf-testcases/#ntriples
+***********************************************************/
+
+/*
+    The following expression defines the defined ASF grammar transitions.
+
+    pre_subject ->
+        {
+        ( writing_subject_uri | writing_bnode_uri )
+            -> pre_predicate
+                -> writing_predicate_uri
+                    -> pre_object
+                        -> writing_object_uri | writing_object_bnode |
+                          (
+                            writing_object_literal
+                                -> writing_literal_lang | writing_literal_type
+                          )
+                            -> post_object
+                                -> BEGIN
+         } otherwise {
+             -> ERROR
+         }
+*/
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("ntriples", function() {
+
+  var Location = {
+    PRE_SUBJECT         : 0,
+    WRITING_SUB_URI     : 1,
+    WRITING_BNODE_URI   : 2,
+    PRE_PRED            : 3,
+    WRITING_PRED_URI    : 4,
+    PRE_OBJ             : 5,
+    WRITING_OBJ_URI     : 6,
+    WRITING_OBJ_BNODE   : 7,
+    WRITING_OBJ_LITERAL : 8,
+    WRITING_LIT_LANG    : 9,
+    WRITING_LIT_TYPE    : 10,
+    POST_OBJ            : 11,
+    ERROR               : 12
+  };
+  function transitState(currState, c) {
+    var currLocation = currState.location;
+    var ret;
+
+    // Opening.
+    if     (currLocation == Location.PRE_SUBJECT && c == '<') ret = Location.WRITING_SUB_URI;
+    else if(currLocation == Location.PRE_SUBJECT && c == '_') ret = Location.WRITING_BNODE_URI;
+    else if(currLocation == Location.PRE_PRED    && c == '<') ret = Location.WRITING_PRED_URI;
+    else if(currLocation == Location.PRE_OBJ     && c == '<') ret = Location.WRITING_OBJ_URI;
+    else if(currLocation == Location.PRE_OBJ     && c == '_') ret = Location.WRITING_OBJ_BNODE;
+    else if(currLocation == Location.PRE_OBJ     && c == '"') ret = Location.WRITING_OBJ_LITERAL;
+
+    // Closing.
+    else if(currLocation == Location.WRITING_SUB_URI     && c == '>') ret = Location.PRE_PRED;
+    else if(currLocation == Location.WRITING_BNODE_URI   && c == ' ') ret = Location.PRE_PRED;
+    else if(currLocation == Location.WRITING_PRED_URI    && c == '>') ret = Location.PRE_OBJ;
+    else if(currLocation == Location.WRITING_OBJ_URI     && c == '>') ret = Location.POST_OBJ;
+    else if(currLocation == Location.WRITING_OBJ_BNODE   && c == ' ') ret = Location.POST_OBJ;
+    else if(currLocation == Location.WRITING_OBJ_LITERAL && c == '"') ret = Location.POST_OBJ;
+    else if(currLocation == Location.WRITING_LIT_LANG && c == ' ') ret = Location.POST_OBJ;
+    else if(currLocation == Location.WRITING_LIT_TYPE && c == '>') ret = Location.POST_OBJ;
+
+    // Closing typed and language literal.
+    else if(currLocation == Location.WRITING_OBJ_LITERAL && c == '@') ret = Location.WRITING_LIT_LANG;
+    else if(currLocation == Location.WRITING_OBJ_LITERAL && c == '^') ret = Location.WRITING_LIT_TYPE;
+
+    // Spaces.
+    else if( c == ' ' &&
+             (
+               currLocation == Location.PRE_SUBJECT ||
+               currLocation == Location.PRE_PRED    ||
+               currLocation == Location.PRE_OBJ     ||
+               currLocation == Location.POST_OBJ
+             )
+           ) ret = currLocation;
+
+    // Reset.
+    else if(currLocation == Location.POST_OBJ && c == '.') ret = Location.PRE_SUBJECT;
+
+    // Error
+    else ret = Location.ERROR;
+
+    currState.location=ret;
+  }
+
+  return {
+    startState: function() {
+       return {
+           location : Location.PRE_SUBJECT,
+           uris     : [],
+           anchors  : [],
+           bnodes   : [],
+           langs    : [],
+           types    : []
+       };
+    },
+    token: function(stream, state) {
+      var ch = stream.next();
+      if(ch == '<') {
+         transitState(state, ch);
+         var parsedURI = '';
+         stream.eatWhile( function(c) { if( c != '#' && c != '>' ) { parsedURI += c; return true; } return false;} );
+         state.uris.push(parsedURI);
+         if( stream.match('#', false) ) return 'variable';
+         stream.next();
+         transitState(state, '>');
+         return 'variable';
+      }
+      if(ch == '#') {
+        var parsedAnchor = '';
+        stream.eatWhile(function(c) { if(c != '>' && c != ' ') { parsedAnchor+= c; return true; } return false;});
+        state.anchors.push(parsedAnchor);
+        return 'variable-2';
+      }
+      if(ch == '>') {
+          transitState(state, '>');
+          return 'variable';
+      }
+      if(ch == '_') {
+          transitState(state, ch);
+          var parsedBNode = '';
+          stream.eatWhile(function(c) { if( c != ' ' ) { parsedBNode += c; return true; } return false;});
+          state.bnodes.push(parsedBNode);
+          stream.next();
+          transitState(state, ' ');
+          return 'builtin';
+      }
+      if(ch == '"') {
+          transitState(state, ch);
+          stream.eatWhile( function(c) { return c != '"'; } );
+          stream.next();
+          if( stream.peek() != '@' && stream.peek() != '^' ) {
+              transitState(state, '"');
+          }
+          return 'string';
+      }
+      if( ch == '@' ) {
+          transitState(state, '@');
+          var parsedLang = '';
+          stream.eatWhile(function(c) { if( c != ' ' ) { parsedLang += c; return true; } return false;});
+          state.langs.push(parsedLang);
+          stream.next();
+          transitState(state, ' ');
+          return 'string-2';
+      }
+      if( ch == '^' ) {
+          stream.next();
+          transitState(state, '^');
+          var parsedType = '';
+          stream.eatWhile(function(c) { if( c != '>' ) { parsedType += c; return true; } return false;} );
+          state.types.push(parsedType);
+          stream.next();
+          transitState(state, '>');
+          return 'variable';
+      }
+      if( ch == ' ' ) {
+          transitState(state, ch);
+      }
+      if( ch == '.' ) {
+          transitState(state, ch);
+      }
+    }
+  };
+});
+
+CodeMirror.defineMIME("text/n-triples", "ntriples");
+
+});
diff --git a/public/codemirror/mode/octave/index.html b/public/codemirror/mode/octave/index.html
new file mode 100644
index 000000000..3490ee637
--- /dev/null
+++ b/public/codemirror/mode/octave/index.html
@@ -0,0 +1,83 @@
+
+
+CodeMirror: Octave mode
+
+
+
+
+
+
+
+
+
+

+
Octave mode

+
+    

+    
+
+    
MIME types defined: text/x-octave.

+

diff --git a/public/codemirror/mode/octave/octave.js b/public/codemirror/mode/octave/octave.js
new file mode 100644
index 000000000..f38b751d1
--- /dev/null
+++ b/public/codemirror/mode/octave/octave.js
@@ -0,0 +1,139 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("octave", function() {
+  function wordRegexp(words) {
+    return new RegExp("^((" + words.join(")|(") + "))\\b");
+  }
+
+  var singleOperators = new RegExp("^[\\+\\-\\*/&|\\^~<>!@'\\\\]");
+  var singleDelimiters = new RegExp('^[\\(\\[\\{\\},:=;]');
+  var doubleOperators = new RegExp("^((==)|(~=)|(<=)|(>=)|(<<)|(>>)|(\\.[\\+\\-\\*/\\^\\\\]))");
+  var doubleDelimiters = new RegExp("^((!=)|(\\+=)|(\\-=)|(\\*=)|(/=)|(&=)|(\\|=)|(\\^=))");
+  var tripleDelimiters = new RegExp("^((>>=)|(<<=))");
+  var expressionEnd = new RegExp("^[\\]\\)]");
+  var identifiers = new RegExp("^[_A-Za-z\xa1-\uffff][_A-Za-z0-9\xa1-\uffff]*");
+
+  var builtins = wordRegexp([
+    'error', 'eval', 'function', 'abs', 'acos', 'atan', 'asin', 'cos',
+    'cosh', 'exp', 'log', 'prod', 'sum', 'log10', 'max', 'min', 'sign', 'sin', 'sinh',
+    'sqrt', 'tan', 'reshape', 'break', 'zeros', 'default', 'margin', 'round', 'ones',
+    'rand', 'syn', 'ceil', 'floor', 'size', 'clear', 'zeros', 'eye', 'mean', 'std', 'cov',
+    'det', 'eig', 'inv', 'norm', 'rank', 'trace', 'expm', 'logm', 'sqrtm', 'linspace', 'plot',
+    'title', 'xlabel', 'ylabel', 'legend', 'text', 'grid', 'meshgrid', 'mesh', 'num2str',
+    'fft', 'ifft', 'arrayfun', 'cellfun', 'input', 'fliplr', 'flipud', 'ismember'
+  ]);
+
+  var keywords = wordRegexp([
+    'return', 'case', 'switch', 'else', 'elseif', 'end', 'endif', 'endfunction',
+    'if', 'otherwise', 'do', 'for', 'while', 'try', 'catch', 'classdef', 'properties', 'events',
+    'methods', 'global', 'persistent', 'endfor', 'endwhile', 'printf', 'sprintf', 'disp', 'until',
+    'continue', 'pkg'
+  ]);
+
+
+  // tokenizers
+  function tokenTranspose(stream, state) {
+    if (!stream.sol() && stream.peek() === '\'') {
+      stream.next();
+      state.tokenize = tokenBase;
+      return 'operator';
+    }
+    state.tokenize = tokenBase;
+    return tokenBase(stream, state);
+  }
+
+
+  function tokenComment(stream, state) {
+    if (stream.match(/^.*%}/)) {
+      state.tokenize = tokenBase;
+      return 'comment';
+    };
+    stream.skipToEnd();
+    return 'comment';
+  }
+
+  function tokenBase(stream, state) {
+    // whitespaces
+    if (stream.eatSpace()) return null;
+
+    // Handle one line Comments
+    if (stream.match('%{')){
+      state.tokenize = tokenComment;
+      stream.skipToEnd();
+      return 'comment';
+    }
+
+    if (stream.match(/^[%#]/)){
+      stream.skipToEnd();
+      return 'comment';
+    }
+
+    // Handle Number Literals
+    if (stream.match(/^[0-9\.+-]/, false)) {
+      if (stream.match(/^[+-]?0x[0-9a-fA-F]+[ij]?/)) {
+        stream.tokenize = tokenBase;
+        return 'number'; };
+      if (stream.match(/^[+-]?\d*\.\d+([EeDd][+-]?\d+)?[ij]?/)) { return 'number'; };
+      if (stream.match(/^[+-]?\d+([EeDd][+-]?\d+)?[ij]?/)) { return 'number'; };
+    }
+    if (stream.match(wordRegexp(['nan','NaN','inf','Inf']))) { return 'number'; };
+
+    // Handle Strings
+    if (stream.match(/^"([^"]|(""))*"/)) { return 'string'; } ;
+    if (stream.match(/^'([^']|(''))*'/)) { return 'string'; } ;
+
+    // Handle words
+    if (stream.match(keywords)) { return 'keyword'; } ;
+    if (stream.match(builtins)) { return 'builtin'; } ;
+    if (stream.match(identifiers)) { return 'variable'; } ;
+
+    if (stream.match(singleOperators) || stream.match(doubleOperators)) { return 'operator'; };
+    if (stream.match(singleDelimiters) || stream.match(doubleDelimiters) || stream.match(tripleDelimiters)) { return null; };
+
+    if (stream.match(expressionEnd)) {
+      state.tokenize = tokenTranspose;
+      return null;
+    };
+
+
+    // Handle non-detected items
+    stream.next();
+    return 'error';
+  };
+
+
+  return {
+    startState: function() {
+      return {
+        tokenize: tokenBase
+      };
+    },
+
+    token: function(stream, state) {
+      var style = state.tokenize(stream, state);
+      if (style === 'number' || style === 'variable'){
+        state.tokenize = tokenTranspose;
+      }
+      return style;
+    },
+
+    lineComment: '%',
+
+    fold: 'indent'
+  };
+});
+
+CodeMirror.defineMIME("text/x-octave", "octave");
+
+});
diff --git a/public/codemirror/mode/oz/index.html b/public/codemirror/mode/oz/index.html
new file mode 100644
index 000000000..febd82a59
--- /dev/null
+++ b/public/codemirror/mode/oz/index.html
@@ -0,0 +1,59 @@
+
+
+CodeMirror: Oz mode
+
+
+
+
+
+
+
+
+
+
+

+
Oz mode

+
+
MIME type defined: text/x-oz.

+
+
+

diff --git a/public/codemirror/mode/oz/oz.js b/public/codemirror/mode/oz/oz.js
new file mode 100644
index 000000000..ee8cb0ad1
--- /dev/null
+++ b/public/codemirror/mode/oz/oz.js
@@ -0,0 +1,252 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("oz", function (conf) {
+
+  function wordRegexp(words) {
+    return new RegExp("^((" + words.join(")|(") + "))\\b");
+  }
+
+  var singleOperators = /[\^@!\|<>#~\.\*\-\+\\/,=]/;
+  var doubleOperators = /(<-)|(:=)|(=<)|(>=)|(<=)|(<:)|(>:)|(=:)|(\\=)|(\\=:)|(!!)|(==)|(::)/;
+  var tripleOperators = /(:::)|(\.\.\.)|(=<:)|(>=:)/;
+
+  var middle = ["in", "then", "else", "of", "elseof", "elsecase", "elseif", "catch",
+    "finally", "with", "require", "prepare", "import", "export", "define", "do"];
+  var end = ["end"];
+
+  var atoms = wordRegexp(["true", "false", "nil", "unit"]);
+  var commonKeywords = wordRegexp(["andthen", "at", "attr", "declare", "feat", "from", "lex",
+    "mod", "mode", "orelse", "parser", "prod", "prop", "scanner", "self", "syn", "token"]);
+  var openingKeywords = wordRegexp(["local", "proc", "fun", "case", "class", "if", "cond", "or", "dis",
+    "choice", "not", "thread", "try", "raise", "lock", "for", "suchthat", "meth", "functor"]);
+  var middleKeywords = wordRegexp(middle);
+  var endKeywords = wordRegexp(end);
+
+  // Tokenizers
+  function tokenBase(stream, state) {
+    if (stream.eatSpace()) {
+      return null;
+    }
+
+    // Brackets
+    if(stream.match(/[{}]/)) {
+      return "bracket";
+    }
+
+    // Special [] keyword
+    if (stream.match(/(\[])/)) {
+        return "keyword"
+    }
+
+    // Operators
+    if (stream.match(tripleOperators) || stream.match(doubleOperators)) {
+      return "operator";
+    }
+
+    // Atoms
+    if(stream.match(atoms)) {
+      return 'atom';
+    }
+
+    // Opening keywords
+    var matched = stream.match(openingKeywords);
+    if (matched) {
+      if (!state.doInCurrentLine)
+        state.currentIndent++;
+      else
+        state.doInCurrentLine = false;
+
+      // Special matching for signatures
+      if(matched[0] == "proc" || matched[0] == "fun")
+        state.tokenize = tokenFunProc;
+      else if(matched[0] == "class")
+        state.tokenize = tokenClass;
+      else if(matched[0] == "meth")
+        state.tokenize = tokenMeth;
+
+      return 'keyword';
+    }
+
+    // Middle and other keywords
+    if (stream.match(middleKeywords) || stream.match(commonKeywords)) {
+      return "keyword"
+    }
+
+    // End keywords
+    if (stream.match(endKeywords)) {
+      state.currentIndent--;
+      return 'keyword';
+    }
+
+    // Eat the next char for next comparisons
+    var ch = stream.next();
+
+    // Strings
+    if (ch == '"' || ch == "'") {
+      state.tokenize = tokenString(ch);
+      return state.tokenize(stream, state);
+    }
+
+    // Numbers
+    if (/[~\d]/.test(ch)) {
+      if (ch == "~") {
+        if(! /^[0-9]/.test(stream.peek()))
+          return null;
+        else if (( stream.next() == "0" && stream.match(/^[xX][0-9a-fA-F]+/)) || stream.match(/^[0-9]*(\.[0-9]+)?([eE][~+]?[0-9]+)?/))
+          return "number";
+      }
+
+      if ((ch == "0" && stream.match(/^[xX][0-9a-fA-F]+/)) || stream.match(/^[0-9]*(\.[0-9]+)?([eE][~+]?[0-9]+)?/))
+        return "number";
+
+      return null;
+    }
+
+    // Comments
+    if (ch == "%") {
+      stream.skipToEnd();
+      return 'comment';
+    }
+    else if (ch == "/") {
+      if (stream.eat("*")) {
+        state.tokenize = tokenComment;
+        return tokenComment(stream, state);
+      }
+    }
+
+    // Single operators
+    if(singleOperators.test(ch)) {
+      return "operator";
+    }
+
+    // If nothing match, we skip the entire alphanumerical block
+    stream.eatWhile(/\w/);
+
+    return "variable";
+  }
+
+  function tokenClass(stream, state) {
+    if (stream.eatSpace()) {
+      return null;
+    }
+    stream.match(/([A-Z][A-Za-z0-9_]*)|(`.+`)/);
+    state.tokenize = tokenBase;
+    return "variable-3"
+  }
+
+  function tokenMeth(stream, state) {
+    if (stream.eatSpace()) {
+      return null;
+    }
+    stream.match(/([a-zA-Z][A-Za-z0-9_]*)|(`.+`)/);
+    state.tokenize = tokenBase;
+    return "def"
+  }
+
+  function tokenFunProc(stream, state) {
+    if (stream.eatSpace()) {
+      return null;
+    }
+
+    if(!state.hasPassedFirstStage && stream.eat("{")) {
+      state.hasPassedFirstStage = true;
+      return "bracket";
+    }
+    else if(state.hasPassedFirstStage) {
+      stream.match(/([A-Z][A-Za-z0-9_]*)|(`.+`)|\$/);
+      state.hasPassedFirstStage = false;
+      state.tokenize = tokenBase;
+      return "def"
+    }
+    else {
+      state.tokenize = tokenBase;
+      return null;
+    }
+  }
+
+  function tokenComment(stream, state) {
+    var maybeEnd = false, ch;
+    while (ch = stream.next()) {
+      if (ch == "/" && maybeEnd) {
+        state.tokenize = tokenBase;
+        break;
+      }
+      maybeEnd = (ch == "*");
+    }
+    return "comment";
+  }
+
+  function tokenString(quote) {
+    return function (stream, state) {
+      var escaped = false, next, end = false;
+      while ((next = stream.next()) != null) {
+        if (next == quote && !escaped) {
+          end = true;
+          break;
+        }
+        escaped = !escaped && next == "\\";
+      }
+      if (end || !escaped)
+        state.tokenize = tokenBase;
+      return "string";
+    };
+  }
+
+  function buildElectricInputRegEx() {
+    // Reindentation should occur on [] or on a match of any of
+    // the block closing keywords, at the end of a line.
+    var allClosings = middle.concat(end);
+    return new RegExp("[\\[\\]]|(" + allClosings.join("|") + ")$");
+  }
+
+  return {
+
+    startState: function () {
+      return {
+        tokenize: tokenBase,
+        currentIndent: 0,
+        doInCurrentLine: false,
+        hasPassedFirstStage: false
+      };
+    },
+
+    token: function (stream, state) {
+      if (stream.sol())
+        state.doInCurrentLine = 0;
+
+      return state.tokenize(stream, state);
+    },
+
+    indent: function (state, textAfter) {
+      var trueText = textAfter.replace(/^\s+|\s+$/g, '');
+
+      if (trueText.match(endKeywords) || trueText.match(middleKeywords) || trueText.match(/(\[])/))
+        return conf.indentUnit * (state.currentIndent - 1);
+
+      if (state.currentIndent < 0)
+        return 0;
+
+      return state.currentIndent * conf.indentUnit;
+    },
+    fold: "indent",
+    electricInput: buildElectricInputRegEx(),
+    lineComment: "%",
+    blockCommentStart: "/*",
+    blockCommentEnd: "*/"
+  };
+});
+
+CodeMirror.defineMIME("text/x-oz", "oz");
+
+});
diff --git a/public/codemirror/mode/pascal/index.html b/public/codemirror/mode/pascal/index.html
new file mode 100644
index 000000000..f8a99ad01
--- /dev/null
+++ b/public/codemirror/mode/pascal/index.html
@@ -0,0 +1,61 @@
+
+
+CodeMirror: Pascal mode
+
+
+
+
+
+
+
+
+
+

+
Pascal mode

+
+
+

+
+    
+
+    
MIME types defined: text/x-pascal.

+  

diff --git a/public/codemirror/mode/pascal/pascal.js b/public/codemirror/mode/pascal/pascal.js
new file mode 100644
index 000000000..2d0c3d424
--- /dev/null
+++ b/public/codemirror/mode/pascal/pascal.js
@@ -0,0 +1,109 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("pascal", function() {
+  function words(str) {
+    var obj = {}, words = str.split(" ");
+    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+    return obj;
+  }
+  var keywords = words("and array begin case const div do downto else end file for forward integer " +
+                       "boolean char function goto if in label mod nil not of or packed procedure " +
+                       "program record repeat set string then to type until var while with");
+  var atoms = {"null": true};
+
+  var isOperatorChar = /[+\-*&%=<>!?|\/]/;
+
+  function tokenBase(stream, state) {
+    var ch = stream.next();
+    if (ch == "#" && state.startOfLine) {
+      stream.skipToEnd();
+      return "meta";
+    }
+    if (ch == '"' || ch == "'") {
+      state.tokenize = tokenString(ch);
+      return state.tokenize(stream, state);
+    }
+    if (ch == "(" && stream.eat("*")) {
+      state.tokenize = tokenComment;
+      return tokenComment(stream, state);
+    }
+    if (/[\[\]{}\(\),;\:\.]/.test(ch)) {
+      return null;
+    }
+    if (/\d/.test(ch)) {
+      stream.eatWhile(/[\w\.]/);
+      return "number";
+    }
+    if (ch == "/") {
+      if (stream.eat("/")) {
+        stream.skipToEnd();
+        return "comment";
+      }
+    }
+    if (isOperatorChar.test(ch)) {
+      stream.eatWhile(isOperatorChar);
+      return "operator";
+    }
+    stream.eatWhile(/[\w\$_]/);
+    var cur = stream.current();
+    if (keywords.propertyIsEnumerable(cur)) return "keyword";
+    if (atoms.propertyIsEnumerable(cur)) return "atom";
+    return "variable";
+  }
+
+  function tokenString(quote) {
+    return function(stream, state) {
+      var escaped = false, next, end = false;
+      while ((next = stream.next()) != null) {
+        if (next == quote && !escaped) {end = true; break;}
+        escaped = !escaped && next == "\\";
+      }
+      if (end || !escaped) state.tokenize = null;
+      return "string";
+    };
+  }
+
+  function tokenComment(stream, state) {
+    var maybeEnd = false, ch;
+    while (ch = stream.next()) {
+      if (ch == ")" && maybeEnd) {
+        state.tokenize = null;
+        break;
+      }
+      maybeEnd = (ch == "*");
+    }
+    return "comment";
+  }
+
+  // Interface
+
+  return {
+    startState: function() {
+      return {tokenize: null};
+    },
+
+    token: function(stream, state) {
+      if (stream.eatSpace()) return null;
+      var style = (state.tokenize || tokenBase)(stream, state);
+      if (style == "comment" || style == "meta") return style;
+      return style;
+    },
+
+    electricChars: "{}"
+  };
+});
+
+CodeMirror.defineMIME("text/x-pascal", "pascal");
+
+});
diff --git a/public/codemirror/mode/pegjs/index.html b/public/codemirror/mode/pegjs/index.html
new file mode 100644
index 000000000..0c7460488
--- /dev/null
+++ b/public/codemirror/mode/pegjs/index.html
@@ -0,0 +1,66 @@
+
+
+  
+    CodeMirror: PEG.js Mode
+    
+    
+
+    
+    
+    
+    
+    
+  
+  
+    
+
+    

+      
PEG.js Mode

+      

+      
+      
The PEG.js Mode

+      
 Created by Forbes Lindesay.

+    

+  
+
diff --git a/public/codemirror/mode/pegjs/pegjs.js b/public/codemirror/mode/pegjs/pegjs.js
new file mode 100644
index 000000000..6c7207466
--- /dev/null
+++ b/public/codemirror/mode/pegjs/pegjs.js
@@ -0,0 +1,114 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../javascript/javascript"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../javascript/javascript"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("pegjs", function (config) {
+  var jsMode = CodeMirror.getMode(config, "javascript");
+
+  function identifier(stream) {
+    return stream.match(/^[a-zA-Z_][a-zA-Z0-9_]*/);
+  }
+
+  return {
+    startState: function () {
+      return {
+        inString: false,
+        stringType: null,
+        inComment: false,
+        inCharacterClass: false,
+        braced: 0,
+        lhs: true,
+        localState: null
+      };
+    },
+    token: function (stream, state) {
+      if (stream)
+
+      //check for state changes
+      if (!state.inString && !state.inComment && ((stream.peek() == '"') || (stream.peek() == "'"))) {
+        state.stringType = stream.peek();
+        stream.next(); // Skip quote
+        state.inString = true; // Update state
+      }
+      if (!state.inString && !state.inComment && stream.match(/^\/\*/)) {
+        state.inComment = true;
+      }
+
+      //return state
+      if (state.inString) {
+        while (state.inString && !stream.eol()) {
+          if (stream.peek() === state.stringType) {
+            stream.next(); // Skip quote
+            state.inString = false; // Clear flag
+          } else if (stream.peek() === '\\') {
+            stream.next();
+            stream.next();
+          } else {
+            stream.match(/^.[^\\\"\']*/);
+          }
+        }
+        return state.lhs ? "property string" : "string"; // Token style
+      } else if (state.inComment) {
+        while (state.inComment && !stream.eol()) {
+          if (stream.match(/\*\//)) {
+            state.inComment = false; // Clear flag
+          } else {
+            stream.match(/^.[^\*]*/);
+          }
+        }
+        return "comment";
+      } else if (state.inCharacterClass) {
+          while (state.inCharacterClass && !stream.eol()) {
+            if (!(stream.match(/^[^\]\\]+/) || stream.match(/^\\./))) {
+              state.inCharacterClass = false;
+            }
+          }
+      } else if (stream.peek() === '[') {
+        stream.next();
+        state.inCharacterClass = true;
+        return 'bracket';
+      } else if (stream.match(/^\/\//)) {
+        stream.skipToEnd();
+        return "comment";
+      } else if (state.braced || stream.peek() === '{') {
+        if (state.localState === null) {
+          state.localState = CodeMirror.startState(jsMode);
+        }
+        var token = jsMode.token(stream, state.localState);
+        var text = stream.current();
+        if (!token) {
+          for (var i = 0; i < text.length; i++) {
+            if (text[i] === '{') {
+              state.braced++;
+            } else if (text[i] === '}') {
+              state.braced--;
+            }
+          };
+        }
+        return token;
+      } else if (identifier(stream)) {
+        if (stream.peek() === ':') {
+          return 'variable';
+        }
+        return 'variable-2';
+      } else if (['[', ']', '(', ')'].indexOf(stream.peek()) != -1) {
+        stream.next();
+        return 'bracket';
+      } else if (!stream.eatSpace()) {
+        stream.next();
+      }
+      return null;
+    }
+  };
+}, "javascript");
+
+});
diff --git a/public/codemirror/mode/perl/index.html b/public/codemirror/mode/perl/index.html
new file mode 100644
index 000000000..8c1021c42
--- /dev/null
+++ b/public/codemirror/mode/perl/index.html
@@ -0,0 +1,75 @@
+
+
+CodeMirror: Perl mode
+
+
+
+
+
+
+
+
+
+

+
Perl mode

+
+
+

+
+    
+
+    
MIME types defined: text/x-perl.

+  

diff --git a/public/codemirror/mode/perl/perl.js b/public/codemirror/mode/perl/perl.js
new file mode 100644
index 000000000..66e4ed034
--- /dev/null
+++ b/public/codemirror/mode/perl/perl.js
@@ -0,0 +1,837 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// CodeMirror2 mode/perl/perl.js (text/x-perl) beta 0.10 (2011-11-08)
+// This is a part of CodeMirror from https://github.com/sabaca/CodeMirror_mode_perl (mail@sabaca.com)
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("perl",function(){
+        // http://perldoc.perl.org
+        var PERL={                                      //   null - magic touch
+                                                        //   1 - keyword
+                                                        //   2 - def
+                                                        //   3 - atom
+                                                        //   4 - operator
+                                                        //   5 - variable-2 (predefined)
+                                                        //   [x,y] - x=1,2,3; y=must be defined if x{...}
+                                                //      PERL operators
+                '->'                            :   4,
+                '++'                            :   4,
+                '--'                            :   4,
+                '**'                            :   4,
+                                                        //   ! ~ \ and unary + and -
+                '=~'                            :   4,
+                '!~'                            :   4,
+                '*'                             :   4,
+                '/'                             :   4,
+                '%'                             :   4,
+                'x'                             :   4,
+                '+'                             :   4,
+                '-'                             :   4,
+                '.'                             :   4,
+                '<<'                            :   4,
+                '>>'                            :   4,
+                                                        //   named unary operators
+                '<'                             :   4,
+                '>'                             :   4,
+                '<='                            :   4,
+                '>='                            :   4,
+                'lt'                            :   4,
+                'gt'                            :   4,
+                'le'                            :   4,
+                'ge'                            :   4,
+                '=='                            :   4,
+                '!='                            :   4,
+                '<=>'                           :   4,
+                'eq'                            :   4,
+                'ne'                            :   4,
+                'cmp'                           :   4,
+                '~~'                            :   4,
+                '&'                             :   4,
+                '|'                             :   4,
+                '^'                             :   4,
+                '&&'                            :   4,
+                '||'                            :   4,
+                '//'                            :   4,
+                '..'                            :   4,
+                '...'                           :   4,
+                '?'                             :   4,
+                ':'                             :   4,
+                '='                             :   4,
+                '+='                            :   4,
+                '-='                            :   4,
+                '*='                            :   4,  //   etc. ???
+                ','                             :   4,
+                '=>'                            :   4,
+                '::'                            :   4,
+                                                        //   list operators (rightward)
+                'not'                           :   4,
+                'and'                           :   4,
+                'or'                            :   4,
+                'xor'                           :   4,
+                                                //      PERL predefined variables (I know, what this is a paranoid idea, but may be needed for people, who learn PERL, and for me as well, ...and may be for you?;)
+                'BEGIN'                         :   [5,1],
+                'END'                           :   [5,1],
+                'PRINT'                         :   [5,1],
+                'PRINTF'                        :   [5,1],
+                'GETC'                          :   [5,1],
+                'READ'                          :   [5,1],
+                'READLINE'                      :   [5,1],
+                'DESTROY'                       :   [5,1],
+                'TIE'                           :   [5,1],
+                'TIEHANDLE'                     :   [5,1],
+                'UNTIE'                         :   [5,1],
+                'STDIN'                         :    5,
+                'STDIN_TOP'                     :    5,
+                'STDOUT'                        :    5,
+                'STDOUT_TOP'                    :    5,
+                'STDERR'                        :    5,
+                'STDERR_TOP'                    :    5,
+                '$ARG'                          :    5,
+                '$_'                            :    5,
+                '@ARG'                          :    5,
+                '@_'                            :    5,
+                '$LIST_SEPARATOR'               :    5,
+                '$"'                            :    5,
+                '$PROCESS_ID'                   :    5,
+                '$PID'                          :    5,
+                '$$'                            :    5,
+                '$REAL_GROUP_ID'                :    5,
+                '$GID'                          :    5,
+                '$('                            :    5,
+                '$EFFECTIVE_GROUP_ID'           :    5,
+                '$EGID'                         :    5,
+                '$)'                            :    5,
+                '$PROGRAM_NAME'                 :    5,
+                '$0'                            :    5,
+                '$SUBSCRIPT_SEPARATOR'          :    5,
+                '$SUBSEP'                       :    5,
+                '$;'                            :    5,
+                '$REAL_USER_ID'                 :    5,
+                '$UID'                          :    5,
+                '$<'                            :    5,
+                '$EFFECTIVE_USER_ID'            :    5,
+                '$EUID'                         :    5,
+                '$>'                            :    5,
+                '$a'                            :    5,
+                '$b'                            :    5,
+                '$COMPILING'                    :    5,
+                '$^C'                           :    5,
+                '$DEBUGGING'                    :    5,
+                '$^D'                           :    5,
+                '${^ENCODING}'                  :    5,
+                '$ENV'                          :    5,
+                '%ENV'                          :    5,
+                '$SYSTEM_FD_MAX'                :    5,
+                '$^F'                           :    5,
+                '@F'                            :    5,
+                '${^GLOBAL_PHASE}'              :    5,
+                '$^H'                           :    5,
+                '%^H'                           :    5,
+                '@INC'                          :    5,
+                '%INC'                          :    5,
+                '$INPLACE_EDIT'                 :    5,
+                '$^I'                           :    5,
+                '$^M'                           :    5,
+                '$OSNAME'                       :    5,
+                '$^O'                           :    5,
+                '${^OPEN}'                      :    5,
+                '$PERLDB'                       :    5,
+                '$^P'                           :    5,
+                '$SIG'                          :    5,
+                '%SIG'                          :    5,
+                '$BASETIME'                     :    5,
+                '$^T'                           :    5,
+                '${^TAINT}'                     :    5,
+                '${^UNICODE}'                   :    5,
+                '${^UTF8CACHE}'                 :    5,
+                '${^UTF8LOCALE}'                :    5,
+                '$PERL_VERSION'                 :    5,
+                '$^V'                           :    5,
+                '${^WIN32_SLOPPY_STAT}'         :    5,
+                '$EXECUTABLE_NAME'              :    5,
+                '$^X'                           :    5,
+                '$1'                            :    5, // - regexp $1, $2...
+                '$MATCH'                        :    5,
+                '$&'                            :    5,
+                '${^MATCH}'                     :    5,
+                '$PREMATCH'                     :    5,
+                '$`'                            :    5,
+                '${^PREMATCH}'                  :    5,
+                '$POSTMATCH'                    :    5,
+                "$'"                            :    5,
+                '${^POSTMATCH}'                 :    5,
+                '$LAST_PAREN_MATCH'             :    5,
+                '$+'                            :    5,
+                '$LAST_SUBMATCH_RESULT'         :    5,
+                '$^N'                           :    5,
+                '@LAST_MATCH_END'               :    5,
+                '@+'                            :    5,
+                '%LAST_PAREN_MATCH'             :    5,
+                '%+'                            :    5,
+                '@LAST_MATCH_START'             :    5,
+                '@-'                            :    5,
+                '%LAST_MATCH_START'             :    5,
+                '%-'                            :    5,
+                '$LAST_REGEXP_CODE_RESULT'      :    5,
+                '$^R'                           :    5,
+                '${^RE_DEBUG_FLAGS}'            :    5,
+                '${^RE_TRIE_MAXBUF}'            :    5,
+                '$ARGV'                         :    5,
+                '@ARGV'                         :    5,
+                'ARGV'                          :    5,
+                'ARGVOUT'                       :    5,
+                '$OUTPUT_FIELD_SEPARATOR'       :    5,
+                '$OFS'                          :    5,
+                '$,'                            :    5,
+                '$INPUT_LINE_NUMBER'            :    5,
+                '$NR'                           :    5,
+                '$.'                            :    5,
+                '$INPUT_RECORD_SEPARATOR'       :    5,
+                '$RS'                           :    5,
+                '$/'                            :    5,
+                '$OUTPUT_RECORD_SEPARATOR'      :    5,
+                '$ORS'                          :    5,
+                '$\\'                           :    5,
+                '$OUTPUT_AUTOFLUSH'             :    5,
+                '$|'                            :    5,
+                '$ACCUMULATOR'                  :    5,
+                '$^A'                           :    5,
+                '$FORMAT_FORMFEED'              :    5,
+                '$^L'                           :    5,
+                '$FORMAT_PAGE_NUMBER'           :    5,
+                '$%'                            :    5,
+                '$FORMAT_LINES_LEFT'            :    5,
+                '$-'                            :    5,
+                '$FORMAT_LINE_BREAK_CHARACTERS' :    5,
+                '$:'                            :    5,
+                '$FORMAT_LINES_PER_PAGE'        :    5,
+                '$='                            :    5,
+                '$FORMAT_TOP_NAME'              :    5,
+                '$^'                            :    5,
+                '$FORMAT_NAME'                  :    5,
+                '$~'                            :    5,
+                '${^CHILD_ERROR_NATIVE}'        :    5,
+                '$EXTENDED_OS_ERROR'            :    5,
+                '$^E'                           :    5,
+                '$EXCEPTIONS_BEING_CAUGHT'      :    5,
+                '$^S'                           :    5,
+                '$WARNING'                      :    5,
+                '$^W'                           :    5,
+                '${^WARNING_BITS}'              :    5,
+                '$OS_ERROR'                     :    5,
+                '$ERRNO'                        :    5,
+                '$!'                            :    5,
+                '%OS_ERROR'                     :    5,
+                '%ERRNO'                        :    5,
+                '%!'                            :    5,
+                '$CHILD_ERROR'                  :    5,
+                '$?'                            :    5,
+                '$EVAL_ERROR'                   :    5,
+                '$@'                            :    5,
+                '$OFMT'                         :    5,
+                '$#'                            :    5,
+                '$*'                            :    5,
+                '$ARRAY_BASE'                   :    5,
+                '$['                            :    5,
+                '$OLD_PERL_VERSION'             :    5,
+                '$]'                            :    5,
+                                                //      PERL blocks
+                'if'                            :[1,1],
+                elsif                           :[1,1],
+                'else'                          :[1,1],
+                'while'                         :[1,1],
+                unless                          :[1,1],
+                'for'                           :[1,1],
+                foreach                         :[1,1],
+                                                //      PERL functions
+                'abs'                           :1,     // - absolute value function
+                accept                          :1,     // - accept an incoming socket connect
+                alarm                           :1,     // - schedule a SIGALRM
+                'atan2'                         :1,     // - arctangent of Y/X in the range -PI to PI
+                bind                            :1,     // - binds an address to a socket
+                binmode                         :1,     // - prepare binary files for I/O
+                bless                           :1,     // - create an object
+                bootstrap                       :1,     //
+                'break'                         :1,     // - break out of a "given" block
+                caller                          :1,     // - get context of the current subroutine call
+                chdir                           :1,     // - change your current working directory
+                chmod                           :1,     // - changes the permissions on a list of files
+                chomp                           :1,     // - remove a trailing record separator from a string
+                chop                            :1,     // - remove the last character from a string
+                chown                           :1,     // - change the ownership on a list of files
+                chr                             :1,     // - get character this number represents
+                chroot                          :1,     // - make directory new root for path lookups
+                close                           :1,     // - close file (or pipe or socket) handle
+                closedir                        :1,     // - close directory handle
+                connect                         :1,     // - connect to a remote socket
+                'continue'                      :[1,1], // - optional trailing block in a while or foreach
+                'cos'                           :1,     // - cosine function
+                crypt                           :1,     // - one-way passwd-style encryption
+                dbmclose                        :1,     // - breaks binding on a tied dbm file
+                dbmopen                         :1,     // - create binding on a tied dbm file
+                'default'                       :1,     //
+                defined                         :1,     // - test whether a value, variable, or function is defined
+                'delete'                        :1,     // - deletes a value from a hash
+                die                             :1,     // - raise an exception or bail out
+                'do'                            :1,     // - turn a BLOCK into a TERM
+                dump                            :1,     // - create an immediate core dump
+                each                            :1,     // - retrieve the next key/value pair from a hash
+                endgrent                        :1,     // - be done using group file
+                endhostent                      :1,     // - be done using hosts file
+                endnetent                       :1,     // - be done using networks file
+                endprotoent                     :1,     // - be done using protocols file
+                endpwent                        :1,     // - be done using passwd file
+                endservent                      :1,     // - be done using services file
+                eof                             :1,     // - test a filehandle for its end
+                'eval'                          :1,     // - catch exceptions or compile and run code
+                'exec'                          :1,     // - abandon this program to run another
+                exists                          :1,     // - test whether a hash key is present
+                exit                            :1,     // - terminate this program
+                'exp'                           :1,     // - raise I to a power
+                fcntl                           :1,     // - file control system call
+                fileno                          :1,     // - return file descriptor from filehandle
+                flock                           :1,     // - lock an entire file with an advisory lock
+                fork                            :1,     // - create a new process just like this one
+                format                          :1,     // - declare a picture format with use by the write() function
+                formline                        :1,     // - internal function used for formats
+                getc                            :1,     // - get the next character from the filehandle
+                getgrent                        :1,     // - get next group record
+                getgrgid                        :1,     // - get group record given group user ID
+                getgrnam                        :1,     // - get group record given group name
+                gethostbyaddr                   :1,     // - get host record given its address
+                gethostbyname                   :1,     // - get host record given name
+                gethostent                      :1,     // - get next hosts record
+                getlogin                        :1,     // - return who logged in at this tty
+                getnetbyaddr                    :1,     // - get network record given its address
+                getnetbyname                    :1,     // - get networks record given name
+                getnetent                       :1,     // - get next networks record
+                getpeername                     :1,     // - find the other end of a socket connection
+                getpgrp                         :1,     // - get process group
+                getppid                         :1,     // - get parent process ID
+                getpriority                     :1,     // - get current nice value
+                getprotobyname                  :1,     // - get protocol record given name
+                getprotobynumber                :1,     // - get protocol record numeric protocol
+                getprotoent                     :1,     // - get next protocols record
+                getpwent                        :1,     // - get next passwd record
+                getpwnam                        :1,     // - get passwd record given user login name
+                getpwuid                        :1,     // - get passwd record given user ID
+                getservbyname                   :1,     // - get services record given its name
+                getservbyport                   :1,     // - get services record given numeric port
+                getservent                      :1,     // - get next services record
+                getsockname                     :1,     // - retrieve the sockaddr for a given socket
+                getsockopt                      :1,     // - get socket options on a given socket
+                given                           :1,     //
+                glob                            :1,     // - expand filenames using wildcards
+                gmtime                          :1,     // - convert UNIX time into record or string using Greenwich time
+                'goto'                          :1,     // - create spaghetti code
+                grep                            :1,     // - locate elements in a list test true against a given criterion
+                hex                             :1,     // - convert a string to a hexadecimal number
+                'import'                        :1,     // - patch a module's namespace into your own
+                index                           :1,     // - find a substring within a string
+                'int'                           :1,     // - get the integer portion of a number
+                ioctl                           :1,     // - system-dependent device control system call
+                'join'                          :1,     // - join a list into a string using a separator
+                keys                            :1,     // - retrieve list of indices from a hash
+                kill                            :1,     // - send a signal to a process or process group
+                last                            :1,     // - exit a block prematurely
+                lc                              :1,     // - return lower-case version of a string
+                lcfirst                         :1,     // - return a string with just the next letter in lower case
+                length                          :1,     // - return the number of bytes in a string
+                'link'                          :1,     // - create a hard link in the filesytem
+                listen                          :1,     // - register your socket as a server
+                local                           : 2,    // - create a temporary value for a global variable (dynamic scoping)
+                localtime                       :1,     // - convert UNIX time into record or string using local time
+                lock                            :1,     // - get a thread lock on a variable, subroutine, or method
+                'log'                           :1,     // - retrieve the natural logarithm for a number
+                lstat                           :1,     // - stat a symbolic link
+                m                               :null,  // - match a string with a regular expression pattern
+                map                             :1,     // - apply a change to a list to get back a new list with the changes
+                mkdir                           :1,     // - create a directory
+                msgctl                          :1,     // - SysV IPC message control operations
+                msgget                          :1,     // - get SysV IPC message queue
+                msgrcv                          :1,     // - receive a SysV IPC message from a message queue
+                msgsnd                          :1,     // - send a SysV IPC message to a message queue
+                my                              : 2,    // - declare and assign a local variable (lexical scoping)
+                'new'                           :1,     //
+                next                            :1,     // - iterate a block prematurely
+                no                              :1,     // - unimport some module symbols or semantics at compile time
+                oct                             :1,     // - convert a string to an octal number
+                open                            :1,     // - open a file, pipe, or descriptor
+                opendir                         :1,     // - open a directory
+                ord                             :1,     // - find a character's numeric representation
+                our                             : 2,    // - declare and assign a package variable (lexical scoping)
+                pack                            :1,     // - convert a list into a binary representation
+                'package'                       :1,     // - declare a separate global namespace
+                pipe                            :1,     // - open a pair of connected filehandles
+                pop                             :1,     // - remove the last element from an array and return it
+                pos                             :1,     // - find or set the offset for the last/next m//g search
+                print                           :1,     // - output a list to a filehandle
+                printf                          :1,     // - output a formatted list to a filehandle
+                prototype                       :1,     // - get the prototype (if any) of a subroutine
+                push                            :1,     // - append one or more elements to an array
+                q                               :null,  // - singly quote a string
+                qq                              :null,  // - doubly quote a string
+                qr                              :null,  // - Compile pattern
+                quotemeta                       :null,  // - quote regular expression magic characters
+                qw                              :null,  // - quote a list of words
+                qx                              :null,  // - backquote quote a string
+                rand                            :1,     // - retrieve the next pseudorandom number
+                read                            :1,     // - fixed-length buffered input from a filehandle
+                readdir                         :1,     // - get a directory from a directory handle
+                readline                        :1,     // - fetch a record from a file
+                readlink                        :1,     // - determine where a symbolic link is pointing
+                readpipe                        :1,     // - execute a system command and collect standard output
+                recv                            :1,     // - receive a message over a Socket
+                redo                            :1,     // - start this loop iteration over again
+                ref                             :1,     // - find out the type of thing being referenced
+                rename                          :1,     // - change a filename
+                require                         :1,     // - load in external functions from a library at runtime
+                reset                           :1,     // - clear all variables of a given name
+                'return'                        :1,     // - get out of a function early
+                reverse                         :1,     // - flip a string or a list
+                rewinddir                       :1,     // - reset directory handle
+                rindex                          :1,     // - right-to-left substring search
+                rmdir                           :1,     // - remove a directory
+                s                               :null,  // - replace a pattern with a string
+                say                             :1,     // - print with newline
+                scalar                          :1,     // - force a scalar context
+                seek                            :1,     // - reposition file pointer for random-access I/O
+                seekdir                         :1,     // - reposition directory pointer
+                select                          :1,     // - reset default output or do I/O multiplexing
+                semctl                          :1,     // - SysV semaphore control operations
+                semget                          :1,     // - get set of SysV semaphores
+                semop                           :1,     // - SysV semaphore operations
+                send                            :1,     // - send a message over a socket
+                setgrent                        :1,     // - prepare group file for use
+                sethostent                      :1,     // - prepare hosts file for use
+                setnetent                       :1,     // - prepare networks file for use
+                setpgrp                         :1,     // - set the process group of a process
+                setpriority                     :1,     // - set a process's nice value
+                setprotoent                     :1,     // - prepare protocols file for use
+                setpwent                        :1,     // - prepare passwd file for use
+                setservent                      :1,     // - prepare services file for use
+                setsockopt                      :1,     // - set some socket options
+                shift                           :1,     // - remove the first element of an array, and return it
+                shmctl                          :1,     // - SysV shared memory operations
+                shmget                          :1,     // - get SysV shared memory segment identifier
+                shmread                         :1,     // - read SysV shared memory
+                shmwrite                        :1,     // - write SysV shared memory
+                shutdown                        :1,     // - close down just half of a socket connection
+                'sin'                           :1,     // - return the sine of a number
+                sleep                           :1,     // - block for some number of seconds
+                socket                          :1,     // - create a socket
+                socketpair                      :1,     // - create a pair of sockets
+                'sort'                          :1,     // - sort a list of values
+                splice                          :1,     // - add or remove elements anywhere in an array
+                'split'                         :1,     // - split up a string using a regexp delimiter
+                sprintf                         :1,     // - formatted print into a string
+                'sqrt'                          :1,     // - square root function
+                srand                           :1,     // - seed the random number generator
+                stat                            :1,     // - get a file's status information
+                state                           :1,     // - declare and assign a state variable (persistent lexical scoping)
+                study                           :1,     // - optimize input data for repeated searches
+                'sub'                           :1,     // - declare a subroutine, possibly anonymously
+                'substr'                        :1,     // - get or alter a portion of a stirng
+                symlink                         :1,     // - create a symbolic link to a file
+                syscall                         :1,     // - execute an arbitrary system call
+                sysopen                         :1,     // - open a file, pipe, or descriptor
+                sysread                         :1,     // - fixed-length unbuffered input from a filehandle
+                sysseek                         :1,     // - position I/O pointer on handle used with sysread and syswrite
+                system                          :1,     // - run a separate program
+                syswrite                        :1,     // - fixed-length unbuffered output to a filehandle
+                tell                            :1,     // - get current seekpointer on a filehandle
+                telldir                         :1,     // - get current seekpointer on a directory handle
+                tie                             :1,     // - bind a variable to an object class
+                tied                            :1,     // - get a reference to the object underlying a tied variable
+                time                            :1,     // - return number of seconds since 1970
+                times                           :1,     // - return elapsed time for self and child processes
+                tr                              :null,  // - transliterate a string
+                truncate                        :1,     // - shorten a file
+                uc                              :1,     // - return upper-case version of a string
+                ucfirst                         :1,     // - return a string with just the next letter in upper case
+                umask                           :1,     // - set file creation mode mask
+                undef                           :1,     // - remove a variable or function definition
+                unlink                          :1,     // - remove one link to a file
+                unpack                          :1,     // - convert binary structure into normal perl variables
+                unshift                         :1,     // - prepend more elements to the beginning of a list
+                untie                           :1,     // - break a tie binding to a variable
+                use                             :1,     // - load in a module at compile time
+                utime                           :1,     // - set a file's last access and modify times
+                values                          :1,     // - return a list of the values in a hash
+                vec                             :1,     // - test or set particular bits in a string
+                wait                            :1,     // - wait for any child process to die
+                waitpid                         :1,     // - wait for a particular child process to die
+                wantarray                       :1,     // - get void vs scalar vs list context of current subroutine call
+                warn                            :1,     // - print debugging info
+                when                            :1,     //
+                write                           :1,     // - print a picture record
+                y                               :null}; // - transliterate a string
+
+        var RXstyle="string-2";
+        var RXmodifiers=/[goseximacplud]/;              // NOTE: "m", "s", "y" and "tr" need to correct real modifiers for each regexp type
+
+        function tokenChain(stream,state,chain,style,tail){     // NOTE: chain.length > 2 is not working now (it's for s[...][...]geos;)
+                state.chain=null;                               //                                                          12   3tail
+                state.style=null;
+                state.tail=null;
+                state.tokenize=function(stream,state){
+                        var e=false,c,i=0;
+                        while(c=stream.next()){
+                                if(c===chain[i]&&!e){
+                                        if(chain[++i]!==undefined){
+                                                state.chain=chain[i];
+                                                state.style=style;
+                                                state.tail=tail;}
+                                        else if(tail)
+                                                stream.eatWhile(tail);
+                                        state.tokenize=tokenPerl;
+                                        return style;}
+                                e=!e&&c=="\\";}
+                        return style;};
+                return state.tokenize(stream,state);}
+
+        function tokenSOMETHING(stream,state,string){
+                state.tokenize=function(stream,state){
+                        if(stream.string==string)
+                                state.tokenize=tokenPerl;
+                        stream.skipToEnd();
+                        return "string";};
+                return state.tokenize(stream,state);}
+
+        function tokenPerl(stream,state){
+                if(stream.eatSpace())
+                        return null;
+                if(state.chain)
+                        return tokenChain(stream,state,state.chain,state.style,state.tail);
+                if(stream.match(/^\-?[\d\.]/,false))
+                        if(stream.match(/^(\-?(\d*\.\d+(e[+-]?\d+)?|\d+\.\d*)|0x[\da-fA-F]+|0b[01]+|\d+(e[+-]?\d+)?)/))
+                                return 'number';
+                if(stream.match(/^<<(?=\w)/)){                  // NOTE: <"],RXstyle,RXmodifiers);}
+                                        if(/[\^'"!~\/]/.test(c)){
+                                                eatSuffix(stream, 1);
+                                                return tokenChain(stream,state,[stream.eat(c)],RXstyle,RXmodifiers);}}
+                                else if(c=="q"){
+                                        c=look(stream, 1);
+                                        if(c=="("){
+                                                eatSuffix(stream, 2);
+                                                return tokenChain(stream,state,[")"],"string");}
+                                        if(c=="["){
+                                                eatSuffix(stream, 2);
+                                                return tokenChain(stream,state,["]"],"string");}
+                                        if(c=="{"){
+                                                eatSuffix(stream, 2);
+                                                return tokenChain(stream,state,["}"],"string");}
+                                        if(c=="<"){
+                                                eatSuffix(stream, 2);
+                                                return tokenChain(stream,state,[">"],"string");}
+                                        if(/[\^'"!~\/]/.test(c)){
+                                                eatSuffix(stream, 1);
+                                                return tokenChain(stream,state,[stream.eat(c)],"string");}}
+                                else if(c=="w"){
+                                        c=look(stream, 1);
+                                        if(c=="("){
+                                                eatSuffix(stream, 2);
+                                                return tokenChain(stream,state,[")"],"bracket");}
+                                        if(c=="["){
+                                                eatSuffix(stream, 2);
+                                                return tokenChain(stream,state,["]"],"bracket");}
+                                        if(c=="{"){
+                                                eatSuffix(stream, 2);
+                                                return tokenChain(stream,state,["}"],"bracket");}
+                                        if(c=="<"){
+                                                eatSuffix(stream, 2);
+                                                return tokenChain(stream,state,[">"],"bracket");}
+                                        if(/[\^'"!~\/]/.test(c)){
+                                                eatSuffix(stream, 1);
+                                                return tokenChain(stream,state,[stream.eat(c)],"bracket");}}
+                                else if(c=="r"){
+                                        c=look(stream, 1);
+                                        if(c=="("){
+                                                eatSuffix(stream, 2);
+                                                return tokenChain(stream,state,[")"],RXstyle,RXmodifiers);}
+                                        if(c=="["){
+                                                eatSuffix(stream, 2);
+                                                return tokenChain(stream,state,["]"],RXstyle,RXmodifiers);}
+                                        if(c=="{"){
+                                                eatSuffix(stream, 2);
+                                                return tokenChain(stream,state,["}"],RXstyle,RXmodifiers);}
+                                        if(c=="<"){
+                                                eatSuffix(stream, 2);
+                                                return tokenChain(stream,state,[">"],RXstyle,RXmodifiers);}
+                                        if(/[\^'"!~\/]/.test(c)){
+                                                eatSuffix(stream, 1);
+                                                return tokenChain(stream,state,[stream.eat(c)],RXstyle,RXmodifiers);}}
+                                else if(/[\^'"!~\/(\[{<]/.test(c)){
+                                        if(c=="("){
+                                                eatSuffix(stream, 1);
+                                                return tokenChain(stream,state,[")"],"string");}
+                                        if(c=="["){
+                                                eatSuffix(stream, 1);
+                                                return tokenChain(stream,state,["]"],"string");}
+                                        if(c=="{"){
+                                                eatSuffix(stream, 1);
+                                                return tokenChain(stream,state,["}"],"string");}
+                                        if(c=="<"){
+                                                eatSuffix(stream, 1);
+                                                return tokenChain(stream,state,[">"],"string");}
+                                        if(/[\^'"!~\/]/.test(c)){
+                                                return tokenChain(stream,state,[stream.eat(c)],"string");}}}}
+                if(ch=="m"){
+                        var c=look(stream, -2);
+                        if(!(c&&/\w/.test(c))){
+                                c=stream.eat(/[(\[{<\^'"!~\/]/);
+                                if(c){
+                                        if(/[\^'"!~\/]/.test(c)){
+                                                return tokenChain(stream,state,[c],RXstyle,RXmodifiers);}
+                                        if(c=="("){
+                                                return tokenChain(stream,state,[")"],RXstyle,RXmodifiers);}
+                                        if(c=="["){
+                                                return tokenChain(stream,state,["]"],RXstyle,RXmodifiers);}
+                                        if(c=="{"){
+                                                return tokenChain(stream,state,["}"],RXstyle,RXmodifiers);}
+                                        if(c=="<"){
+                                                return tokenChain(stream,state,[">"],RXstyle,RXmodifiers);}}}}
+                if(ch=="s"){
+                        var c=/[\/>\]})\w]/.test(look(stream, -2));
+                        if(!c){
+                                c=stream.eat(/[(\[{<\^'"!~\/]/);
+                                if(c){
+                                        if(c=="[")
+                                                return tokenChain(stream,state,["]","]"],RXstyle,RXmodifiers);
+                                        if(c=="{")
+                                                return tokenChain(stream,state,["}","}"],RXstyle,RXmodifiers);
+                                        if(c=="<")
+                                                return tokenChain(stream,state,[">",">"],RXstyle,RXmodifiers);
+                                        if(c=="(")
+                                                return tokenChain(stream,state,[")",")"],RXstyle,RXmodifiers);
+                                        return tokenChain(stream,state,[c,c],RXstyle,RXmodifiers);}}}
+                if(ch=="y"){
+                        var c=/[\/>\]})\w]/.test(look(stream, -2));
+                        if(!c){
+                                c=stream.eat(/[(\[{<\^'"!~\/]/);
+                                if(c){
+                                        if(c=="[")
+                                                return tokenChain(stream,state,["]","]"],RXstyle,RXmodifiers);
+                                        if(c=="{")
+                                                return tokenChain(stream,state,["}","}"],RXstyle,RXmodifiers);
+                                        if(c=="<")
+                                                return tokenChain(stream,state,[">",">"],RXstyle,RXmodifiers);
+                                        if(c=="(")
+                                                return tokenChain(stream,state,[")",")"],RXstyle,RXmodifiers);
+                                        return tokenChain(stream,state,[c,c],RXstyle,RXmodifiers);}}}
+                if(ch=="t"){
+                        var c=/[\/>\]})\w]/.test(look(stream, -2));
+                        if(!c){
+                                c=stream.eat("r");if(c){
+                                c=stream.eat(/[(\[{<\^'"!~\/]/);
+                                if(c){
+                                        if(c=="[")
+                                                return tokenChain(stream,state,["]","]"],RXstyle,RXmodifiers);
+                                        if(c=="{")
+                                                return tokenChain(stream,state,["}","}"],RXstyle,RXmodifiers);
+                                        if(c=="<")
+                                                return tokenChain(stream,state,[">",">"],RXstyle,RXmodifiers);
+                                        if(c=="(")
+                                                return tokenChain(stream,state,[")",")"],RXstyle,RXmodifiers);
+                                        return tokenChain(stream,state,[c,c],RXstyle,RXmodifiers);}}}}
+                if(ch=="`"){
+                        return tokenChain(stream,state,[ch],"variable-2");}
+                if(ch=="/"){
+                        if(!/~\s*$/.test(prefix(stream)))
+                                return "operator";
+                        else
+                                return tokenChain(stream,state,[ch],RXstyle,RXmodifiers);}
+                if(ch=="$"){
+                        var p=stream.pos;
+                        if(stream.eatWhile(/\d/)||stream.eat("{")&&stream.eatWhile(/\d/)&&stream.eat("}"))
+                                return "variable-2";
+                        else
+                                stream.pos=p;}
+                if(/[$@%]/.test(ch)){
+                        var p=stream.pos;
+                        if(stream.eat("^")&&stream.eat(/[A-Z]/)||!/[@$%&]/.test(look(stream, -2))&&stream.eat(/[=|\\\-#?@;:&`~\^!\[\]*'"$+.,\/<>()]/)){
+                                var c=stream.current();
+                                if(PERL[c])
+                                        return "variable-2";}
+                        stream.pos=p;}
+                if(/[$@%&]/.test(ch)){
+                        if(stream.eatWhile(/[\w$\[\]]/)||stream.eat("{")&&stream.eatWhile(/[\w$\[\]]/)&&stream.eat("}")){
+                                var c=stream.current();
+                                if(PERL[c])
+                                        return "variable-2";
+                                else
+                                        return "variable";}}
+                if(ch=="#"){
+                        if(look(stream, -2)!="$"){
+                                stream.skipToEnd();
+                                return "comment";}}
+                if(/[:+\-\^*$&%@=<>!?|\/~\.]/.test(ch)){
+                        var p=stream.pos;
+                        stream.eatWhile(/[:+\-\^*$&%@=<>!?|\/~\.]/);
+                        if(PERL[stream.current()])
+                                return "operator";
+                        else
+                                stream.pos=p;}
+                if(ch=="_"){
+                        if(stream.pos==1){
+                                if(suffix(stream, 6)=="_END__"){
+                                        return tokenChain(stream,state,['\0'],"comment");}
+                                else if(suffix(stream, 7)=="_DATA__"){
+                                        return tokenChain(stream,state,['\0'],"variable-2");}
+                                else if(suffix(stream, 7)=="_C__"){
+                                        return tokenChain(stream,state,['\0'],"string");}}}
+                if(/\w/.test(ch)){
+                        var p=stream.pos;
+                        if(look(stream, -2)=="{"&&(look(stream, 0)=="}"||stream.eatWhile(/\w/)&&look(stream, 0)=="}"))
+                                return "string";
+                        else
+                                stream.pos=p;}
+                if(/[A-Z]/.test(ch)){
+                        var l=look(stream, -2);
+                        var p=stream.pos;
+                        stream.eatWhile(/[A-Z_]/);
+                        if(/[\da-z]/.test(look(stream, 0))){
+                                stream.pos=p;}
+                        else{
+                                var c=PERL[stream.current()];
+                                if(!c)
+                                        return "meta";
+                                if(c[1])
+                                        c=c[0];
+                                if(l!=":"){
+                                        if(c==1)
+                                                return "keyword";
+                                        else if(c==2)
+                                                return "def";
+                                        else if(c==3)
+                                                return "atom";
+                                        else if(c==4)
+                                                return "operator";
+                                        else if(c==5)
+                                                return "variable-2";
+                                        else
+                                                return "meta";}
+                                else
+                                        return "meta";}}
+                if(/[a-zA-Z_]/.test(ch)){
+                        var l=look(stream, -2);
+                        stream.eatWhile(/\w/);
+                        var c=PERL[stream.current()];
+                        if(!c)
+                                return "meta";
+                        if(c[1])
+                                c=c[0];
+                        if(l!=":"){
+                                if(c==1)
+                                        return "keyword";
+                                else if(c==2)
+                                        return "def";
+                                else if(c==3)
+                                        return "atom";
+                                else if(c==4)
+                                        return "operator";
+                                else if(c==5)
+                                        return "variable-2";
+                                else
+                                        return "meta";}
+                        else
+                                return "meta";}
+                return null;}
+
+        return {
+            startState: function() {
+                return {
+                    tokenize: tokenPerl,
+                    chain: null,
+                    style: null,
+                    tail: null
+                };
+            },
+            token: function(stream, state) {
+                return (state.tokenize || tokenPerl)(stream, state);
+            },
+            lineComment: '#'
+        };
+});
+
+CodeMirror.registerHelper("wordChars", "perl", /[\w$]/);
+
+CodeMirror.defineMIME("text/x-perl", "perl");
+
+// it's like "peek", but need for look-ahead or look-behind if index < 0
+function look(stream, c){
+  return stream.string.charAt(stream.pos+(c||0));
+}
+
+// return a part of prefix of current stream from current position
+function prefix(stream, c){
+  if(c){
+    var x=stream.pos-c;
+    return stream.string.substr((x>=0?x:0),c);}
+  else{
+    return stream.string.substr(0,stream.pos-1);
+  }
+}
+
+// return a part of suffix of current stream from current position
+function suffix(stream, c){
+  var y=stream.string.length;
+  var x=y-stream.pos+1;
+  return stream.string.substr(stream.pos,(c&&c=(y=stream.string.length-1))
+    stream.pos=y;
+  else
+    stream.pos=x;
+}
+
+});
diff --git a/public/codemirror/mode/php/index.html b/public/codemirror/mode/php/index.html
new file mode 100644
index 000000000..adf6b1be2
--- /dev/null
+++ b/public/codemirror/mode/php/index.html
@@ -0,0 +1,64 @@
+
+
+CodeMirror: PHP mode
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

+
PHP mode

+

+
+    
+
+    
Simple HTML/PHP mode based on
+    the C-like mode. Depends on XML,
+    JavaScript, CSS, HTMLMixed, and C-like modes.

+
+    
MIME types defined: application/x-httpd-php (HTML with PHP code), text/x-php (plain, non-wrapped PHP code).

+  

diff --git a/public/codemirror/mode/php/php.js b/public/codemirror/mode/php/php.js
new file mode 100644
index 000000000..57ba812d7
--- /dev/null
+++ b/public/codemirror/mode/php/php.js
@@ -0,0 +1,234 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../htmlmixed/htmlmixed"), require("../clike/clike"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../htmlmixed/htmlmixed", "../clike/clike"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  function keywords(str) {
+    var obj = {}, words = str.split(" ");
+    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+    return obj;
+  }
+
+  // Helper for phpString
+  function matchSequence(list, end, escapes) {
+    if (list.length == 0) return phpString(end);
+    return function (stream, state) {
+      var patterns = list[0];
+      for (var i = 0; i < patterns.length; i++) if (stream.match(patterns[i][0])) {
+        state.tokenize = matchSequence(list.slice(1), end);
+        return patterns[i][1];
+      }
+      state.tokenize = phpString(end, escapes);
+      return "string";
+    };
+  }
+  function phpString(closing, escapes) {
+    return function(stream, state) { return phpString_(stream, state, closing, escapes); };
+  }
+  function phpString_(stream, state, closing, escapes) {
+    // "Complex" syntax
+    if (escapes !== false && stream.match("${", false) || stream.match("{$", false)) {
+      state.tokenize = null;
+      return "string";
+    }
+
+    // Simple syntax
+    if (escapes !== false && stream.match(/^\$[a-zA-Z_][a-zA-Z0-9_]*/)) {
+      // After the variable name there may appear array or object operator.
+      if (stream.match("[", false)) {
+        // Match array operator
+        state.tokenize = matchSequence([
+          [["[", null]],
+          [[/\d[\w\.]*/, "number"],
+           [/\$[a-zA-Z_][a-zA-Z0-9_]*/, "variable-2"],
+           [/[\w\$]+/, "variable"]],
+          [["]", null]]
+        ], closing, escapes);
+      }
+      if (stream.match(/\-\>\w/, false)) {
+        // Match object operator
+        state.tokenize = matchSequence([
+          [["->", null]],
+          [[/[\w]+/, "variable"]]
+        ], closing, escapes);
+      }
+      return "variable-2";
+    }
+
+    var escaped = false;
+    // Normal string
+    while (!stream.eol() &&
+           (escaped || escapes === false ||
+            (!stream.match("{$", false) &&
+             !stream.match(/^(\$[a-zA-Z_][a-zA-Z0-9_]*|\$\{)/, false)))) {
+      if (!escaped && stream.match(closing)) {
+        state.tokenize = null;
+        state.tokStack.pop(); state.tokStack.pop();
+        break;
+      }
+      escaped = stream.next() == "\\" && !escaped;
+    }
+    return "string";
+  }
+
+  var phpKeywords = "abstract and array as break case catch class clone const continue declare default " +
+    "do else elseif enddeclare endfor endforeach endif endswitch endwhile extends final " +
+    "for foreach function global goto if implements interface instanceof namespace " +
+    "new or private protected public static switch throw trait try use var while xor " +
+    "die echo empty exit eval include include_once isset list require require_once return " +
+    "print unset __halt_compiler self static parent yield insteadof finally";
+  var phpAtoms = "true false null TRUE FALSE NULL __CLASS__ __DIR__ __FILE__ __LINE__ __METHOD__ __FUNCTION__ __NAMESPACE__ __TRAIT__";
+  var phpBuiltin = "func_num_args func_get_arg func_get_args strlen strcmp strncmp strcasecmp strncasecmp each error_reporting define defined trigger_error user_error set_error_handler restore_error_handler get_declared_classes get_loaded_extensions extension_loaded get_extension_funcs debug_backtrace constant bin2hex hex2bin sleep usleep time mktime gmmktime strftime gmstrftime strtotime date gmdate getdate localtime checkdate flush wordwrap htmlspecialchars htmlentities html_entity_decode md5 md5_file crc32 getimagesize image_type_to_mime_type phpinfo phpversion phpcredits strnatcmp strnatcasecmp substr_count strspn strcspn strtok strtoupper strtolower strpos strrpos strrev hebrev hebrevc nl2br basename dirname pathinfo stripslashes stripcslashes strstr stristr strrchr str_shuffle str_word_count strcoll substr substr_replace quotemeta ucfirst ucwords strtr addslashes addcslashes rtrim str_replace str_repeat count_chars chunk_split trim ltrim strip_tags similar_text explode implode setlocale localeconv parse_str str_pad chop strchr sprintf printf vprintf vsprintf sscanf fscanf parse_url urlencode urldecode rawurlencode rawurldecode readlink linkinfo link unlink exec system escapeshellcmd escapeshellarg passthru shell_exec proc_open proc_close rand srand getrandmax mt_rand mt_srand mt_getrandmax base64_decode base64_encode abs ceil floor round is_finite is_nan is_infinite bindec hexdec octdec decbin decoct dechex base_convert number_format fmod ip2long long2ip getenv putenv getopt microtime gettimeofday getrusage uniqid quoted_printable_decode set_time_limit get_cfg_var magic_quotes_runtime set_magic_quotes_runtime get_magic_quotes_gpc get_magic_quotes_runtime import_request_variables error_log serialize unserialize memory_get_usage var_dump var_export debug_zval_dump print_r highlight_file show_source highlight_string ini_get ini_get_all ini_set ini_alter ini_restore get_include_path set_include_path restore_include_path setcookie header headers_sent connection_aborted connection_status ignore_user_abort parse_ini_file is_uploaded_file move_uploaded_file intval floatval doubleval strval gettype settype is_null is_resource is_bool is_long is_float is_int is_integer is_double is_real is_numeric is_string is_array is_object is_scalar ereg ereg_replace eregi eregi_replace split spliti join sql_regcase dl pclose popen readfile rewind rmdir umask fclose feof fgetc fgets fgetss fread fopen fpassthru ftruncate fstat fseek ftell fflush fwrite fputs mkdir rename copy tempnam tmpfile file file_get_contents file_put_contents stream_select stream_context_create stream_context_set_params stream_context_set_option stream_context_get_options stream_filter_prepend stream_filter_append fgetcsv flock get_meta_tags stream_set_write_buffer set_file_buffer set_socket_blocking stream_set_blocking socket_set_blocking stream_get_meta_data stream_register_wrapper stream_wrapper_register stream_set_timeout socket_set_timeout socket_get_status realpath fnmatch fsockopen pfsockopen pack unpack get_browser crypt opendir closedir chdir getcwd rewinddir readdir dir glob fileatime filectime filegroup fileinode filemtime fileowner fileperms filesize filetype file_exists is_writable is_writeable is_readable is_executable is_file is_dir is_link stat lstat chown touch clearstatcache mail ob_start ob_flush ob_clean ob_end_flush ob_end_clean ob_get_flush ob_get_clean ob_get_length ob_get_level ob_get_status ob_get_contents ob_implicit_flush ob_list_handlers ksort krsort natsort natcasesort asort arsort sort rsort usort uasort uksort shuffle array_walk count end prev next reset current key min max in_array array_search extract compact array_fill range array_multisort array_push array_pop array_shift array_unshift array_splice array_slice array_merge array_merge_recursive array_keys array_values array_count_values array_reverse array_reduce array_pad array_flip array_change_key_case array_rand array_unique array_intersect array_intersect_assoc array_diff array_diff_assoc array_sum array_filter array_map array_chunk array_key_exists array_intersect_key array_combine array_column pos sizeof key_exists assert assert_options version_compare ftok str_rot13 aggregate session_name session_module_name session_save_path session_id session_regenerate_id session_decode session_register session_unregister session_is_registered session_encode session_start session_destroy session_unset session_set_save_handler session_cache_limiter session_cache_expire session_set_cookie_params session_get_cookie_params session_write_close preg_match preg_match_all preg_replace preg_replace_callback preg_split preg_quote preg_grep overload ctype_alnum ctype_alpha ctype_cntrl ctype_digit ctype_lower ctype_graph ctype_print ctype_punct ctype_space ctype_upper ctype_xdigit virtual apache_request_headers apache_note apache_lookup_uri apache_child_terminate apache_setenv apache_response_headers apache_get_version getallheaders mysql_connect mysql_pconnect mysql_close mysql_select_db mysql_create_db mysql_drop_db mysql_query mysql_unbuffered_query mysql_db_query mysql_list_dbs mysql_list_tables mysql_list_fields mysql_list_processes mysql_error mysql_errno mysql_affected_rows mysql_insert_id mysql_result mysql_num_rows mysql_num_fields mysql_fetch_row mysql_fetch_array mysql_fetch_assoc mysql_fetch_object mysql_data_seek mysql_fetch_lengths mysql_fetch_field mysql_field_seek mysql_free_result mysql_field_name mysql_field_table mysql_field_len mysql_field_type mysql_field_flags mysql_escape_string mysql_real_escape_string mysql_stat mysql_thread_id mysql_client_encoding mysql_get_client_info mysql_get_host_info mysql_get_proto_info mysql_get_server_info mysql_info mysql mysql_fieldname mysql_fieldtable mysql_fieldlen mysql_fieldtype mysql_fieldflags mysql_selectdb mysql_createdb mysql_dropdb mysql_freeresult mysql_numfields mysql_numrows mysql_listdbs mysql_listtables mysql_listfields mysql_db_name mysql_dbname mysql_tablename mysql_table_name pg_connect pg_pconnect pg_close pg_connection_status pg_connection_busy pg_connection_reset pg_host pg_dbname pg_port pg_tty pg_options pg_ping pg_query pg_send_query pg_cancel_query pg_fetch_result pg_fetch_row pg_fetch_assoc pg_fetch_array pg_fetch_object pg_fetch_all pg_affected_rows pg_get_result pg_result_seek pg_result_status pg_free_result pg_last_oid pg_num_rows pg_num_fields pg_field_name pg_field_num pg_field_size pg_field_type pg_field_prtlen pg_field_is_null pg_get_notify pg_get_pid pg_result_error pg_last_error pg_last_notice pg_put_line pg_end_copy pg_copy_to pg_copy_from pg_trace pg_untrace pg_lo_create pg_lo_unlink pg_lo_open pg_lo_close pg_lo_read pg_lo_write pg_lo_read_all pg_lo_import pg_lo_export pg_lo_seek pg_lo_tell pg_escape_string pg_escape_bytea pg_unescape_bytea pg_client_encoding pg_set_client_encoding pg_meta_data pg_convert pg_insert pg_update pg_delete pg_select pg_exec pg_getlastoid pg_cmdtuples pg_errormessage pg_numrows pg_numfields pg_fieldname pg_fieldsize pg_fieldtype pg_fieldnum pg_fieldprtlen pg_fieldisnull pg_freeresult pg_result pg_loreadall pg_locreate pg_lounlink pg_loopen pg_loclose pg_loread pg_lowrite pg_loimport pg_loexport http_response_code get_declared_traits getimagesizefromstring socket_import_stream stream_set_chunk_size trait_exists header_register_callback class_uses session_status session_register_shutdown echo print global static exit array empty eval isset unset die include require include_once require_once json_decode json_encode json_last_error json_last_error_msg curl_close curl_copy_handle curl_errno curl_error curl_escape curl_exec curl_file_create curl_getinfo curl_init curl_multi_add_handle curl_multi_close curl_multi_exec curl_multi_getcontent curl_multi_info_read curl_multi_init curl_multi_remove_handle curl_multi_select curl_multi_setopt curl_multi_strerror curl_pause curl_reset curl_setopt_array curl_setopt curl_share_close curl_share_init curl_share_setopt curl_strerror curl_unescape curl_version mysqli_affected_rows mysqli_autocommit mysqli_change_user mysqli_character_set_name mysqli_close mysqli_commit mysqli_connect_errno mysqli_connect_error mysqli_connect mysqli_data_seek mysqli_debug mysqli_dump_debug_info mysqli_errno mysqli_error_list mysqli_error mysqli_fetch_all mysqli_fetch_array mysqli_fetch_assoc mysqli_fetch_field_direct mysqli_fetch_field mysqli_fetch_fields mysqli_fetch_lengths mysqli_fetch_object mysqli_fetch_row mysqli_field_count mysqli_field_seek mysqli_field_tell mysqli_free_result mysqli_get_charset mysqli_get_client_info mysqli_get_client_stats mysqli_get_client_version mysqli_get_connection_stats mysqli_get_host_info mysqli_get_proto_info mysqli_get_server_info mysqli_get_server_version mysqli_info mysqli_init mysqli_insert_id mysqli_kill mysqli_more_results mysqli_multi_query mysqli_next_result mysqli_num_fields mysqli_num_rows mysqli_options mysqli_ping mysqli_prepare mysqli_query mysqli_real_connect mysqli_real_escape_string mysqli_real_query mysqli_reap_async_query mysqli_refresh mysqli_rollback mysqli_select_db mysqli_set_charset mysqli_set_local_infile_default mysqli_set_local_infile_handler mysqli_sqlstate mysqli_ssl_set mysqli_stat mysqli_stmt_init mysqli_store_result mysqli_thread_id mysqli_thread_safe mysqli_use_result mysqli_warning_count";
+  CodeMirror.registerHelper("hintWords", "php", [phpKeywords, phpAtoms, phpBuiltin].join(" ").split(" "));
+  CodeMirror.registerHelper("wordChars", "php", /[\w$]/);
+
+  var phpConfig = {
+    name: "clike",
+    helperType: "php",
+    keywords: keywords(phpKeywords),
+    blockKeywords: keywords("catch do else elseif for foreach if switch try while finally"),
+    defKeywords: keywords("class function interface namespace trait"),
+    atoms: keywords(phpAtoms),
+    builtin: keywords(phpBuiltin),
+    multiLineStrings: true,
+    hooks: {
+      "$": function(stream) {
+        stream.eatWhile(/[\w\$_]/);
+        return "variable-2";
+      },
+      "<": function(stream, state) {
+        var before;
+        if (before = stream.match(/<<\s*/)) {
+          var quoted = stream.eat(/['"]/);
+          stream.eatWhile(/[\w\.]/);
+          var delim = stream.current().slice(before[0].length + (quoted ? 2 : 1));
+          if (quoted) stream.eat(quoted);
+          if (delim) {
+            (state.tokStack || (state.tokStack = [])).push(delim, 0);
+            state.tokenize = phpString(delim, quoted != "'");
+            return "string";
+          }
+        }
+        return false;
+      },
+      "#": function(stream) {
+        while (!stream.eol() && !stream.match("?>", false)) stream.next();
+        return "comment";
+      },
+      "/": function(stream) {
+        if (stream.eat("/")) {
+          while (!stream.eol() && !stream.match("?>", false)) stream.next();
+          return "comment";
+        }
+        return false;
+      },
+      '"': function(_stream, state) {
+        (state.tokStack || (state.tokStack = [])).push('"', 0);
+        state.tokenize = phpString('"');
+        return "string";
+      },
+      "{": function(_stream, state) {
+        if (state.tokStack && state.tokStack.length)
+          state.tokStack[state.tokStack.length - 1]++;
+        return false;
+      },
+      "}": function(_stream, state) {
+        if (state.tokStack && state.tokStack.length > 0 &&
+            !--state.tokStack[state.tokStack.length - 1]) {
+          state.tokenize = phpString(state.tokStack[state.tokStack.length - 2]);
+        }
+        return false;
+      }
+    }
+  };
+
+  CodeMirror.defineMode("php", function(config, parserConfig) {
+    var htmlMode = CodeMirror.getMode(config, "text/html");
+    var phpMode = CodeMirror.getMode(config, phpConfig);
+
+    function dispatch(stream, state) {
+      var isPHP = state.curMode == phpMode;
+      if (stream.sol() && state.pending && state.pending != '"' && state.pending != "'") state.pending = null;
+      if (!isPHP) {
+        if (stream.match(/^<\?\w*/)) {
+          state.curMode = phpMode;
+          if (!state.php) state.php = CodeMirror.startState(phpMode, htmlMode.indent(state.html, ""))
+          state.curState = state.php;
+          return "meta";
+        }
+        if (state.pending == '"' || state.pending == "'") {
+          while (!stream.eol() && stream.next() != state.pending) {}
+          var style = "string";
+        } else if (state.pending && stream.pos < state.pending.end) {
+          stream.pos = state.pending.end;
+          var style = state.pending.style;
+        } else {
+          var style = htmlMode.token(stream, state.curState);
+        }
+        if (state.pending) state.pending = null;
+        var cur = stream.current(), openPHP = cur.search(/<\?/), m;
+        if (openPHP != -1) {
+          if (style == "string" && (m = cur.match(/[\'\"]$/)) && !/\?>/.test(cur)) state.pending = m[0];
+          else state.pending = {end: stream.pos, style: style};
+          stream.backUp(cur.length - openPHP);
+        }
+        return style;
+      } else if (isPHP && state.php.tokenize == null && stream.match("?>")) {
+        state.curMode = htmlMode;
+        state.curState = state.html;
+        if (!state.php.context.prev) state.php = null;
+        return "meta";
+      } else {
+        return phpMode.token(stream, state.curState);
+      }
+    }
+
+    return {
+      startState: function() {
+        var html = CodeMirror.startState(htmlMode)
+        var php = parserConfig.startOpen ? CodeMirror.startState(phpMode) : null
+        return {html: html,
+                php: php,
+                curMode: parserConfig.startOpen ? phpMode : htmlMode,
+                curState: parserConfig.startOpen ? php : html,
+                pending: null};
+      },
+
+      copyState: function(state) {
+        var html = state.html, htmlNew = CodeMirror.copyState(htmlMode, html),
+            php = state.php, phpNew = php && CodeMirror.copyState(phpMode, php), cur;
+        if (state.curMode == htmlMode) cur = htmlNew;
+        else cur = phpNew;
+        return {html: htmlNew, php: phpNew, curMode: state.curMode, curState: cur,
+                pending: state.pending};
+      },
+
+      token: dispatch,
+
+      indent: function(state, textAfter) {
+        if ((state.curMode != phpMode && /^\s*<\//.test(textAfter)) ||
+            (state.curMode == phpMode && /^\?>/.test(textAfter)))
+          return htmlMode.indent(state.html, textAfter);
+        return state.curMode.indent(state.curState, textAfter);
+      },
+
+      blockCommentStart: "/*",
+      blockCommentEnd: "*/",
+      lineComment: "//",
+
+      innerMode: function(state) { return {state: state.curState, mode: state.curMode}; }
+    };
+  }, "htmlmixed", "clike");
+
+  CodeMirror.defineMIME("application/x-httpd-php", "php");
+  CodeMirror.defineMIME("application/x-httpd-php-open", {name: "php", startOpen: true});
+  CodeMirror.defineMIME("text/x-php", phpConfig);
+});
diff --git a/public/codemirror/mode/php/test.js b/public/codemirror/mode/php/test.js
new file mode 100644
index 000000000..e2ecefc18
--- /dev/null
+++ b/public/codemirror/mode/php/test.js
@@ -0,0 +1,154 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({indentUnit: 2}, "php");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)); }
+
+  MT('simple_test',
+     '[meta ]');
+
+  MT('variable_interpolation_non_alphanumeric',
+     '[meta $/$\\$}$\\\"$:$;$?$|$[[$]]$+$=aaa"]',
+     '[meta ?>]');
+
+  MT('variable_interpolation_digits',
+     '[meta ]');
+
+  MT('variable_interpolation_simple_syntax_1',
+     '[meta ]');
+
+  MT('variable_interpolation_simple_syntax_2',
+     '[meta ]');
+
+  MT('variable_interpolation_simple_syntax_3',
+     '[meta [variable aaaaa][string .aaaaaa"];',
+     '[keyword echo] [string "aaa][variable-2 $aaaa][string ->][variable-2 $aaaaa][string .aaaaaa"];',
+     '[keyword echo] [string "aaa][variable-2 $aaaa]->[variable aaaaa][string [[2]].aaaaaa"];',
+     '[keyword echo] [string "aaa][variable-2 $aaaa]->[variable aaaaa][string ->aaaa2.aaaaaa"];',
+     '[meta ?>]');
+
+  MT('variable_interpolation_escaping',
+     '[meta aaa.aaa"];',
+     '[keyword echo] [string "aaa\\$aaaa[[2]]aaa.aaa"];',
+     '[keyword echo] [string "aaa\\$aaaa[[asd]]aaa.aaa"];',
+     '[keyword echo] [string "aaa{\\$aaaa->aaa.aaa"];',
+     '[keyword echo] [string "aaa{\\$aaaa[[2]]aaa.aaa"];',
+     '[keyword echo] [string "aaa{\\aaaaa[[asd]]aaa.aaa"];',
+     '[keyword echo] [string "aaa\\${aaaa->aaa.aaa"];',
+     '[keyword echo] [string "aaa\\${aaaa[[2]]aaa.aaa"];',
+     '[keyword echo] [string "aaa\\${aaaa[[asd]]aaa.aaa"];',
+     '[meta ?>]');
+
+  MT('variable_interpolation_complex_syntax_1',
+     '[meta aaa.aaa"];',
+     '[keyword echo] [string "aaa][variable-2 $]{[variable-2 $aaaa]}[string ->aaa.aaa"];',
+     '[keyword echo] [string "aaa][variable-2 $]{[variable-2 $aaaa][[','  [number 42]',']]}[string ->aaa.aaa"];',
+     '[keyword echo] [string "aaa][variable-2 $]{[variable aaaa][meta ?>]aaaaaa');
+
+  MT('variable_interpolation_complex_syntax_2',
+     '[meta } $aaaaaa.aaa"];',
+     '[keyword echo] [string "][variable-2 $]{[variable aaa][comment /*}?>*/][[','  [string "aaa][variable-2 $aaa][string {}][variable-2 $]{[variable aaa]}[string "]',']]}[string ->aaa.aaa"];',
+     '[keyword echo] [string "][variable-2 $]{[variable aaa][comment /*} } $aaa } */]}[string ->aaa.aaa"];');
+
+
+  function build_recursive_monsters(nt, t, n){
+    var monsters = [t];
+    for (var i = 1; i <= n; ++i)
+      monsters[i] = nt.join(monsters[i - 1]);
+    return monsters;
+  }
+
+  var m1 = build_recursive_monsters(
+    ['[string "][variable-2 $]{[variable aaa] [operator +] ', '}[string "]'],
+    '[comment /* }?>} */] [string "aaa][variable-2 $aaa][string .aaa"]',
+    10
+  );
+
+  MT('variable_interpolation_complex_syntax_3_1',
+     '[meta ]');
+
+  var m2 = build_recursive_monsters(
+    ['[string "a][variable-2 $]{[variable aaa] [operator +] ', ' [operator +] ', '}[string .a"]'],
+    '[comment /* }?>{{ */] [string "a?>}{{aa][variable-2 $aaa][string .a}a?>a"]',
+    5
+  );
+
+  MT('variable_interpolation_complex_syntax_3_2',
+     '[meta ]');
+
+  function build_recursive_monsters_2(mf1, mf2, nt, t, n){
+    var monsters = [t];
+    for (var i = 1; i <= n; ++i)
+      monsters[i] = nt[0] + mf1[i - 1] + nt[1] + mf2[i - 1] + nt[2] + monsters[i - 1] + nt[3];
+    return monsters;
+  }
+
+  var m3 = build_recursive_monsters_2(
+    m1,
+    m2,
+    ['[string "a][variable-2 $]{[variable aaa] [operator +] ', ' [operator +] ', ' [operator +] ', '}[string .a"]'],
+    '[comment /* }?>{{ */] [string "a?>}{{aa][variable-2 $aaa][string .a}a?>a"]',
+    4
+  );
+
+  MT('variable_interpolation_complex_syntax_3_3',
+     '[meta ]');
+
+  MT("variable_interpolation_heredoc",
+     "[meta 
+CodeMirror: Pig Latin mode
+
+
+
+
+
+
+
+
+
+

+
Pig Latin mode

+

+
+    
+
+    

+        Simple mode that handles Pig Latin language.
+    

+
+    
MIME type defined: text/x-pig
+    (PIG code)
+

diff --git a/public/codemirror/mode/pig/pig.js b/public/codemirror/mode/pig/pig.js
new file mode 100644
index 000000000..5b567272e
--- /dev/null
+++ b/public/codemirror/mode/pig/pig.js
@@ -0,0 +1,178 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+/*
+ *      Pig Latin Mode for CodeMirror 2
+ *      @author Prasanth Jayachandran
+ *      @link   https://github.com/prasanthj/pig-codemirror-2
+ *  This implementation is adapted from PL/SQL mode in CodeMirror 2.
+ */
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("pig", function(_config, parserConfig) {
+  var keywords = parserConfig.keywords,
+  builtins = parserConfig.builtins,
+  types = parserConfig.types,
+  multiLineStrings = parserConfig.multiLineStrings;
+
+  var isOperatorChar = /[*+\-%<>=&?:\/!|]/;
+
+  function chain(stream, state, f) {
+    state.tokenize = f;
+    return f(stream, state);
+  }
+
+  function tokenComment(stream, state) {
+    var isEnd = false;
+    var ch;
+    while(ch = stream.next()) {
+      if(ch == "/" && isEnd) {
+        state.tokenize = tokenBase;
+        break;
+      }
+      isEnd = (ch == "*");
+    }
+    return "comment";
+  }
+
+  function tokenString(quote) {
+    return function(stream, state) {
+      var escaped = false, next, end = false;
+      while((next = stream.next()) != null) {
+        if (next == quote && !escaped) {
+          end = true; break;
+        }
+        escaped = !escaped && next == "\\";
+      }
+      if (end || !(escaped || multiLineStrings))
+        state.tokenize = tokenBase;
+      return "error";
+    };
+  }
+
+
+  function tokenBase(stream, state) {
+    var ch = stream.next();
+
+    // is a start of string?
+    if (ch == '"' || ch == "'")
+      return chain(stream, state, tokenString(ch));
+    // is it one of the special chars
+    else if(/[\[\]{}\(\),;\.]/.test(ch))
+      return null;
+    // is it a number?
+    else if(/\d/.test(ch)) {
+      stream.eatWhile(/[\w\.]/);
+      return "number";
+    }
+    // multi line comment or operator
+    else if (ch == "/") {
+      if (stream.eat("*")) {
+        return chain(stream, state, tokenComment);
+      }
+      else {
+        stream.eatWhile(isOperatorChar);
+        return "operator";
+      }
+    }
+    // single line comment or operator
+    else if (ch=="-") {
+      if(stream.eat("-")){
+        stream.skipToEnd();
+        return "comment";
+      }
+      else {
+        stream.eatWhile(isOperatorChar);
+        return "operator";
+      }
+    }
+    // is it an operator
+    else if (isOperatorChar.test(ch)) {
+      stream.eatWhile(isOperatorChar);
+      return "operator";
+    }
+    else {
+      // get the while word
+      stream.eatWhile(/[\w\$_]/);
+      // is it one of the listed keywords?
+      if (keywords && keywords.propertyIsEnumerable(stream.current().toUpperCase())) {
+        //keywords can be used as variables like flatten(group), group.$0 etc..
+        if (!stream.eat(")") && !stream.eat("."))
+          return "keyword";
+      }
+      // is it one of the builtin functions?
+      if (builtins && builtins.propertyIsEnumerable(stream.current().toUpperCase()))
+        return "variable-2";
+      // is it one of the listed types?
+      if (types && types.propertyIsEnumerable(stream.current().toUpperCase()))
+        return "variable-3";
+      // default is a 'variable'
+      return "variable";
+    }
+  }
+
+  // Interface
+  return {
+    startState: function() {
+      return {
+        tokenize: tokenBase,
+        startOfLine: true
+      };
+    },
+
+    token: function(stream, state) {
+      if(stream.eatSpace()) return null;
+      var style = state.tokenize(stream, state);
+      return style;
+    }
+  };
+});
+
+(function() {
+  function keywords(str) {
+    var obj = {}, words = str.split(" ");
+    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+    return obj;
+  }
+
+  // builtin funcs taken from trunk revision 1303237
+  var pBuiltins = "ABS ACOS ARITY ASIN ATAN AVG BAGSIZE BINSTORAGE BLOOM BUILDBLOOM CBRT CEIL "
+    + "CONCAT COR COS COSH COUNT COUNT_STAR COV CONSTANTSIZE CUBEDIMENSIONS DIFF DISTINCT DOUBLEABS "
+    + "DOUBLEAVG DOUBLEBASE DOUBLEMAX DOUBLEMIN DOUBLEROUND DOUBLESUM EXP FLOOR FLOATABS FLOATAVG "
+    + "FLOATMAX FLOATMIN FLOATROUND FLOATSUM GENERICINVOKER INDEXOF INTABS INTAVG INTMAX INTMIN "
+    + "INTSUM INVOKEFORDOUBLE INVOKEFORFLOAT INVOKEFORINT INVOKEFORLONG INVOKEFORSTRING INVOKER "
+    + "ISEMPTY JSONLOADER JSONMETADATA JSONSTORAGE LAST_INDEX_OF LCFIRST LOG LOG10 LOWER LONGABS "
+    + "LONGAVG LONGMAX LONGMIN LONGSUM MAX MIN MAPSIZE MONITOREDUDF NONDETERMINISTIC OUTPUTSCHEMA  "
+    + "PIGSTORAGE PIGSTREAMING RANDOM REGEX_EXTRACT REGEX_EXTRACT_ALL REPLACE ROUND SIN SINH SIZE "
+    + "SQRT STRSPLIT SUBSTRING SUM STRINGCONCAT STRINGMAX STRINGMIN STRINGSIZE TAN TANH TOBAG "
+    + "TOKENIZE TOMAP TOP TOTUPLE TRIM TEXTLOADER TUPLESIZE UCFIRST UPPER UTF8STORAGECONVERTER ";
+
+  // taken from QueryLexer.g
+  var pKeywords = "VOID IMPORT RETURNS DEFINE LOAD FILTER FOREACH ORDER CUBE DISTINCT COGROUP "
+    + "JOIN CROSS UNION SPLIT INTO IF OTHERWISE ALL AS BY USING INNER OUTER ONSCHEMA PARALLEL "
+    + "PARTITION GROUP AND OR NOT GENERATE FLATTEN ASC DESC IS STREAM THROUGH STORE MAPREDUCE "
+    + "SHIP CACHE INPUT OUTPUT STDERROR STDIN STDOUT LIMIT SAMPLE LEFT RIGHT FULL EQ GT LT GTE LTE "
+    + "NEQ MATCHES TRUE FALSE DUMP";
+
+  // data types
+  var pTypes = "BOOLEAN INT LONG FLOAT DOUBLE CHARARRAY BYTEARRAY BAG TUPLE MAP ";
+
+  CodeMirror.defineMIME("text/x-pig", {
+    name: "pig",
+    builtins: keywords(pBuiltins),
+    keywords: keywords(pKeywords),
+    types: keywords(pTypes)
+  });
+
+  CodeMirror.registerHelper("hintWords", "pig", (pBuiltins + pTypes + pKeywords).split(" "));
+}());
+
+});
diff --git a/public/codemirror/mode/powershell/index.html b/public/codemirror/mode/powershell/index.html
new file mode 100644
index 000000000..6b235df8f
--- /dev/null
+++ b/public/codemirror/mode/powershell/index.html
@@ -0,0 +1,204 @@
+
+
+  
+    
+    CodeMirror: Powershell mode
+    
+    
+    
+    
+    
+  
+  
+    
+    

+      
PowerShell mode

+
+      

+      
+
+      
MIME types defined: application/x-powershell.

+    

+  
+
diff --git a/public/codemirror/mode/powershell/powershell.js b/public/codemirror/mode/powershell/powershell.js
new file mode 100644
index 000000000..5eae97948
--- /dev/null
+++ b/public/codemirror/mode/powershell/powershell.js
@@ -0,0 +1,398 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  'use strict';
+  if (typeof exports == 'object' && typeof module == 'object') // CommonJS
+    mod(require('codemirror'));
+  else if (typeof define == 'function' && define.amd) // AMD
+    define(['codemirror'], mod);
+  else // Plain browser env
+    mod(window.CodeMirror);
+})(function(CodeMirror) {
+'use strict';
+
+CodeMirror.defineMode('powershell', function() {
+  function buildRegexp(patterns, options) {
+    options = options || {};
+    var prefix = options.prefix !== undefined ? options.prefix : '^';
+    var suffix = options.suffix !== undefined ? options.suffix : '\\b';
+
+    for (var i = 0; i < patterns.length; i++) {
+      if (patterns[i] instanceof RegExp) {
+        patterns[i] = patterns[i].source;
+      }
+      else {
+        patterns[i] = patterns[i].replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
+      }
+    }
+
+    return new RegExp(prefix + '(' + patterns.join('|') + ')' + suffix, 'i');
+  }
+
+  var notCharacterOrDash = '(?=[^A-Za-z\\d\\-_]|$)';
+  var varNames = /[\w\-:]/
+  var keywords = buildRegexp([
+    /begin|break|catch|continue|data|default|do|dynamicparam/,
+    /else|elseif|end|exit|filter|finally|for|foreach|from|function|if|in/,
+    /param|process|return|switch|throw|trap|try|until|where|while/
+  ], { suffix: notCharacterOrDash });
+
+  var punctuation = /[\[\]{},;`\.]|@[({]/;
+  var wordOperators = buildRegexp([
+    'f',
+    /b?not/,
+    /[ic]?split/, 'join',
+    /is(not)?/, 'as',
+    /[ic]?(eq|ne|[gl][te])/,
+    /[ic]?(not)?(like|match|contains)/,
+    /[ic]?replace/,
+    /b?(and|or|xor)/
+  ], { prefix: '-' });
+  var symbolOperators = /[+\-*\/%]=|\+\+|--|\.\.|[+\-*&^%:=!|\/]|<(?!#)|(?!#)>/;
+  var operators = buildRegexp([wordOperators, symbolOperators], { suffix: '' });
+
+  var numbers = /^((0x[\da-f]+)|((\d+\.\d+|\d\.|\.\d+|\d+)(e[\+\-]?\d+)?))[ld]?([kmgtp]b)?/i;
+
+  var identifiers = /^[A-Za-z\_][A-Za-z\-\_\d]*\b/;
+
+  var symbolBuiltins = /[A-Z]:|%|\?/i;
+  var namedBuiltins = buildRegexp([
+    /Add-(Computer|Content|History|Member|PSSnapin|Type)/,
+    /Checkpoint-Computer/,
+    /Clear-(Content|EventLog|History|Host|Item(Property)?|Variable)/,
+    /Compare-Object/,
+    /Complete-Transaction/,
+    /Connect-PSSession/,
+    /ConvertFrom-(Csv|Json|SecureString|StringData)/,
+    /Convert-Path/,
+    /ConvertTo-(Csv|Html|Json|SecureString|Xml)/,
+    /Copy-Item(Property)?/,
+    /Debug-Process/,
+    /Disable-(ComputerRestore|PSBreakpoint|PSRemoting|PSSessionConfiguration)/,
+    /Disconnect-PSSession/,
+    /Enable-(ComputerRestore|PSBreakpoint|PSRemoting|PSSessionConfiguration)/,
+    /(Enter|Exit)-PSSession/,
+    /Export-(Alias|Clixml|Console|Counter|Csv|FormatData|ModuleMember|PSSession)/,
+    /ForEach-Object/,
+    /Format-(Custom|List|Table|Wide)/,
+    new RegExp('Get-(Acl|Alias|AuthenticodeSignature|ChildItem|Command|ComputerRestorePoint|Content|ControlPanelItem|Counter|Credential'
+      + '|Culture|Date|Event|EventLog|EventSubscriber|ExecutionPolicy|FormatData|Help|History|Host|HotFix|Item|ItemProperty|Job'
+      + '|Location|Member|Module|PfxCertificate|Process|PSBreakpoint|PSCallStack|PSDrive|PSProvider|PSSession|PSSessionConfiguration'
+      + '|PSSnapin|Random|Service|TraceSource|Transaction|TypeData|UICulture|Unique|Variable|Verb|WinEvent|WmiObject)'),
+    /Group-Object/,
+    /Import-(Alias|Clixml|Counter|Csv|LocalizedData|Module|PSSession)/,
+    /ImportSystemModules/,
+    /Invoke-(Command|Expression|History|Item|RestMethod|WebRequest|WmiMethod)/,
+    /Join-Path/,
+    /Limit-EventLog/,
+    /Measure-(Command|Object)/,
+    /Move-Item(Property)?/,
+    new RegExp('New-(Alias|Event|EventLog|Item(Property)?|Module|ModuleManifest|Object|PSDrive|PSSession|PSSessionConfigurationFile'
+      + '|PSSessionOption|PSTransportOption|Service|TimeSpan|Variable|WebServiceProxy|WinEvent)'),
+    /Out-(Default|File|GridView|Host|Null|Printer|String)/,
+    /Pause/,
+    /(Pop|Push)-Location/,
+    /Read-Host/,
+    /Receive-(Job|PSSession)/,
+    /Register-(EngineEvent|ObjectEvent|PSSessionConfiguration|WmiEvent)/,
+    /Remove-(Computer|Event|EventLog|Item(Property)?|Job|Module|PSBreakpoint|PSDrive|PSSession|PSSnapin|TypeData|Variable|WmiObject)/,
+    /Rename-(Computer|Item(Property)?)/,
+    /Reset-ComputerMachinePassword/,
+    /Resolve-Path/,
+    /Restart-(Computer|Service)/,
+    /Restore-Computer/,
+    /Resume-(Job|Service)/,
+    /Save-Help/,
+    /Select-(Object|String|Xml)/,
+    /Send-MailMessage/,
+    new RegExp('Set-(Acl|Alias|AuthenticodeSignature|Content|Date|ExecutionPolicy|Item(Property)?|Location|PSBreakpoint|PSDebug' +
+               '|PSSessionConfiguration|Service|StrictMode|TraceSource|Variable|WmiInstance)'),
+    /Show-(Command|ControlPanelItem|EventLog)/,
+    /Sort-Object/,
+    /Split-Path/,
+    /Start-(Job|Process|Service|Sleep|Transaction|Transcript)/,
+    /Stop-(Computer|Job|Process|Service|Transcript)/,
+    /Suspend-(Job|Service)/,
+    /TabExpansion2/,
+    /Tee-Object/,
+    /Test-(ComputerSecureChannel|Connection|ModuleManifest|Path|PSSessionConfigurationFile)/,
+    /Trace-Command/,
+    /Unblock-File/,
+    /Undo-Transaction/,
+    /Unregister-(Event|PSSessionConfiguration)/,
+    /Update-(FormatData|Help|List|TypeData)/,
+    /Use-Transaction/,
+    /Wait-(Event|Job|Process)/,
+    /Where-Object/,
+    /Write-(Debug|Error|EventLog|Host|Output|Progress|Verbose|Warning)/,
+    /cd|help|mkdir|more|oss|prompt/,
+    /ac|asnp|cat|cd|chdir|clc|clear|clhy|cli|clp|cls|clv|cnsn|compare|copy|cp|cpi|cpp|cvpa|dbp|del|diff|dir|dnsn|ebp/,
+    /echo|epal|epcsv|epsn|erase|etsn|exsn|fc|fl|foreach|ft|fw|gal|gbp|gc|gci|gcm|gcs|gdr|ghy|gi|gjb|gl|gm|gmo|gp|gps/,
+    /group|gsn|gsnp|gsv|gu|gv|gwmi|h|history|icm|iex|ihy|ii|ipal|ipcsv|ipmo|ipsn|irm|ise|iwmi|iwr|kill|lp|ls|man|md/,
+    /measure|mi|mount|move|mp|mv|nal|ndr|ni|nmo|npssc|nsn|nv|ogv|oh|popd|ps|pushd|pwd|r|rbp|rcjb|rcsn|rd|rdr|ren|ri/,
+    /rjb|rm|rmdir|rmo|rni|rnp|rp|rsn|rsnp|rujb|rv|rvpa|rwmi|sajb|sal|saps|sasv|sbp|sc|select|set|shcm|si|sl|sleep|sls/,
+    /sort|sp|spjb|spps|spsv|start|sujb|sv|swmi|tee|trcm|type|where|wjb|write/
+  ], { prefix: '', suffix: '' });
+  var variableBuiltins = buildRegexp([
+    /[$?^_]|Args|ConfirmPreference|ConsoleFileName|DebugPreference|Error|ErrorActionPreference|ErrorView|ExecutionContext/,
+    /FormatEnumerationLimit|Home|Host|Input|MaximumAliasCount|MaximumDriveCount|MaximumErrorCount|MaximumFunctionCount/,
+    /MaximumHistoryCount|MaximumVariableCount|MyInvocation|NestedPromptLevel|OutputEncoding|Pid|Profile|ProgressPreference/,
+    /PSBoundParameters|PSCommandPath|PSCulture|PSDefaultParameterValues|PSEmailServer|PSHome|PSScriptRoot|PSSessionApplicationName/,
+    /PSSessionConfigurationName|PSSessionOption|PSUICulture|PSVersionTable|Pwd|ShellId|StackTrace|VerbosePreference/,
+    /WarningPreference|WhatIfPreference/,
+
+    /Event|EventArgs|EventSubscriber|Sender/,
+    /Matches|Ofs|ForEach|LastExitCode|PSCmdlet|PSItem|PSSenderInfo|This/,
+    /true|false|null/
+  ], { prefix: '\\$', suffix: '' });
+
+  var builtins = buildRegexp([symbolBuiltins, namedBuiltins, variableBuiltins], { suffix: notCharacterOrDash });
+
+  var grammar = {
+    keyword: keywords,
+    number: numbers,
+    operator: operators,
+    builtin: builtins,
+    punctuation: punctuation,
+    identifier: identifiers
+  };
+
+  // tokenizers
+  function tokenBase(stream, state) {
+    // Handle Comments
+    //var ch = stream.peek();
+
+    var parent = state.returnStack[state.returnStack.length - 1];
+    if (parent && parent.shouldReturnFrom(state)) {
+      state.tokenize = parent.tokenize;
+      state.returnStack.pop();
+      return state.tokenize(stream, state);
+    }
+
+    if (stream.eatSpace()) {
+      return null;
+    }
+
+    if (stream.eat('(')) {
+      state.bracketNesting += 1;
+      return 'punctuation';
+    }
+
+    if (stream.eat(')')) {
+      state.bracketNesting -= 1;
+      return 'punctuation';
+    }
+
+    for (var key in grammar) {
+      if (stream.match(grammar[key])) {
+        return key;
+      }
+    }
+
+    var ch = stream.next();
+
+    // single-quote string
+    if (ch === "'") {
+      return tokenSingleQuoteString(stream, state);
+    }
+
+    if (ch === '$') {
+      return tokenVariable(stream, state);
+    }
+
+    // double-quote string
+    if (ch === '"') {
+      return tokenDoubleQuoteString(stream, state);
+    }
+
+    if (ch === '<' && stream.eat('#')) {
+      state.tokenize = tokenComment;
+      return tokenComment(stream, state);
+    }
+
+    if (ch === '#') {
+      stream.skipToEnd();
+      return 'comment';
+    }
+
+    if (ch === '@') {
+      var quoteMatch = stream.eat(/["']/);
+      if (quoteMatch && stream.eol()) {
+        state.tokenize = tokenMultiString;
+        state.startQuote = quoteMatch[0];
+        return tokenMultiString(stream, state);
+      } else if (stream.eol()) {
+        return 'error';
+      } else if (stream.peek().match(/[({]/)) {
+        return 'punctuation';
+      } else if (stream.peek().match(varNames)) {
+        // splatted variable
+        return tokenVariable(stream, state);
+      }
+    }
+    return 'error';
+  }
+
+  function tokenSingleQuoteString(stream, state) {
+    var ch;
+    while ((ch = stream.peek()) != null) {
+      stream.next();
+
+      if (ch === "'" && !stream.eat("'")) {
+        state.tokenize = tokenBase;
+        return 'string';
+      }
+    }
+
+    return 'error';
+  }
+
+  function tokenDoubleQuoteString(stream, state) {
+    var ch;
+    while ((ch = stream.peek()) != null) {
+      if (ch === '$') {
+        state.tokenize = tokenStringInterpolation;
+        return 'string';
+      }
+
+      stream.next();
+      if (ch === '`') {
+        stream.next();
+        continue;
+      }
+
+      if (ch === '"' && !stream.eat('"')) {
+        state.tokenize = tokenBase;
+        return 'string';
+      }
+    }
+
+    return 'error';
+  }
+
+  function tokenStringInterpolation(stream, state) {
+    return tokenInterpolation(stream, state, tokenDoubleQuoteString);
+  }
+
+  function tokenMultiStringReturn(stream, state) {
+    state.tokenize = tokenMultiString;
+    state.startQuote = '"'
+    return tokenMultiString(stream, state);
+  }
+
+  function tokenHereStringInterpolation(stream, state) {
+    return tokenInterpolation(stream, state, tokenMultiStringReturn);
+  }
+
+  function tokenInterpolation(stream, state, parentTokenize) {
+    if (stream.match('$(')) {
+      var savedBracketNesting = state.bracketNesting;
+      state.returnStack.push({
+        /*jshint loopfunc:true */
+        shouldReturnFrom: function(state) {
+          return state.bracketNesting === savedBracketNesting;
+        },
+        tokenize: parentTokenize
+      });
+      state.tokenize = tokenBase;
+      state.bracketNesting += 1;
+      return 'punctuation';
+    } else {
+      stream.next();
+      state.returnStack.push({
+        shouldReturnFrom: function() { return true; },
+        tokenize: parentTokenize
+      });
+      state.tokenize = tokenVariable;
+      return state.tokenize(stream, state);
+    }
+  }
+
+  function tokenComment(stream, state) {
+    var maybeEnd = false, ch;
+    while ((ch = stream.next()) != null) {
+      if (maybeEnd && ch == '>') {
+          state.tokenize = tokenBase;
+          break;
+      }
+      maybeEnd = (ch === '#');
+    }
+    return 'comment';
+  }
+
+  function tokenVariable(stream, state) {
+    var ch = stream.peek();
+    if (stream.eat('{')) {
+      state.tokenize = tokenVariableWithBraces;
+      return tokenVariableWithBraces(stream, state);
+    } else if (ch != undefined && ch.match(varNames)) {
+      stream.eatWhile(varNames);
+      state.tokenize = tokenBase;
+      return 'variable-2';
+    } else {
+      state.tokenize = tokenBase;
+      return 'error';
+    }
+  }
+
+  function tokenVariableWithBraces(stream, state) {
+    var ch;
+    while ((ch = stream.next()) != null) {
+      if (ch === '}') {
+        state.tokenize = tokenBase;
+        break;
+      }
+    }
+    return 'variable-2';
+  }
+
+  function tokenMultiString(stream, state) {
+    var quote = state.startQuote;
+    if (stream.sol() && stream.match(new RegExp(quote + '@'))) {
+      state.tokenize = tokenBase;
+    }
+    else if (quote === '"') {
+      while (!stream.eol()) {
+        var ch = stream.peek();
+        if (ch === '$') {
+          state.tokenize = tokenHereStringInterpolation;
+          return 'string';
+        }
+
+        stream.next();
+        if (ch === '`') {
+          stream.next();
+        }
+      }
+    }
+    else {
+      stream.skipToEnd();
+    }
+
+    return 'string';
+  }
+
+  var external = {
+    startState: function() {
+      return {
+        returnStack: [],
+        bracketNesting: 0,
+        tokenize: tokenBase
+      };
+    },
+
+    token: function(stream, state) {
+      return state.tokenize(stream, state);
+    },
+
+    blockCommentStart: '<#',
+    blockCommentEnd: '#>',
+    lineComment: '#',
+    fold: 'brace'
+  };
+  return external;
+});
+
+CodeMirror.defineMIME('application/x-powershell', 'powershell');
+});
diff --git a/public/codemirror/mode/powershell/test.js b/public/codemirror/mode/powershell/test.js
new file mode 100644
index 000000000..9c9aed0d5
--- /dev/null
+++ b/public/codemirror/mode/powershell/test.js
@@ -0,0 +1,74 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({indentUnit: 2}, "powershell");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)); }
+
+  function forEach(arr, f) { for (var i = 0; i < arr.length; i++) f(arr[i], i) }
+
+  MT('comment', '[number 1][comment # A]');
+  MT('comment_multiline', '[number 1][comment <#]',
+    '[comment ABC]',
+  '[comment #>][number 2]');
+
+  forEach([
+    '0', '1234',
+    '12kb', '12mb', '12Gb', '12Tb', '12PB', '12L', '12D', '12lkb', '12dtb',
+    '1.234', '1.234e56', '1.', '1.e2', '.2', '.2e34',
+    '1.2MB', '1.kb', '.1dTB', '1.e1gb', '.2', '.2e34',
+    '0x1', '0xabcdef', '0x3tb', '0xelmb'
+  ], function(number) {
+    MT("number_" + number, "[number " + number + "]");
+  });
+
+  MT('string_literal_escaping', "[string 'a''']");
+  MT('string_literal_variable', "[string 'a $x']");
+  MT('string_escaping_1', '[string "a `""]');
+  MT('string_escaping_2', '[string "a """]');
+  MT('string_variable_escaping', '[string "a `$x"]');
+  MT('string_variable', '[string "a ][variable-2 $x][string  b"]');
+  MT('string_variable_spaces', '[string "a ][variable-2 ${x y}][string  b"]');
+  MT('string_expression', '[string "a ][punctuation $(][variable-2 $x][operator +][number 3][punctuation )][string  b"]');
+  MT('string_expression_nested', '[string "A][punctuation $(][string "a][punctuation $(][string "w"][punctuation )][string b"][punctuation )][string B"]');
+
+  MT('string_heredoc', '[string @"]',
+    '[string abc]',
+  '[string "@]');
+  MT('string_heredoc_quotes', '[string @"]',
+    '[string abc "\']',
+  '[string "@]');
+  MT('string_heredoc_variable', '[string @"]',
+    '[string a ][variable-2 $x][string  b]',
+  '[string "@]');
+  MT('string_heredoc_nested_string', '[string @"]',
+    '[string a][punctuation $(][string "w"][punctuation )][string b]',
+  '[string "@]');
+  MT('string_heredoc_literal_quotes', "[string @']",
+    '[string abc "\']',
+  "[string '@]");
+
+  MT('array', "[punctuation @(][string 'a'][punctuation ,][string 'b'][punctuation )]");
+  MT('hash', "[punctuation @{][string 'key'][operator :][string 'value'][punctuation }]");
+
+  MT('variable', "[variable-2 $test]");
+  MT('variable_global',  "[variable-2 $global:test]");
+  MT('variable_spaces',  "[variable-2 ${test test}]");
+  MT('operator_splat',   "[variable-2 @x]");
+  MT('variable_builtin', "[builtin $ErrorActionPreference]");
+  MT('variable_builtin_symbols', "[builtin $$]");
+
+  MT('operator', "[operator +]");
+  MT('operator_unary', "[operator +][number 3]");
+  MT('operator_long', "[operator -match]");
+
+  forEach([
+    '(', ')', '[[', ']]', '{', '}', ',', '`', ';', '.'
+  ], function(punctuation) {
+    MT("punctuation_" + punctuation.replace(/^[\[\]]/,''), "[punctuation " + punctuation + "]");
+  });
+
+  MT('keyword', "[keyword if]");
+
+  MT('call_builtin', "[builtin Get-ChildItem]");
+})();
diff --git a/public/codemirror/mode/properties/index.html b/public/codemirror/mode/properties/index.html
new file mode 100644
index 000000000..f885302de
--- /dev/null
+++ b/public/codemirror/mode/properties/index.html
@@ -0,0 +1,53 @@
+
+
+CodeMirror: Properties files mode
+
+
+
+
+
+
+
+
+
+

+
Properties files mode

+

+    
+
+    
MIME types defined: text/x-properties,
+    text/x-ini.

+
+  

diff --git a/public/codemirror/mode/properties/properties.js b/public/codemirror/mode/properties/properties.js
new file mode 100644
index 000000000..ef8bf37ee
--- /dev/null
+++ b/public/codemirror/mode/properties/properties.js
@@ -0,0 +1,78 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("properties", function() {
+  return {
+    token: function(stream, state) {
+      var sol = stream.sol() || state.afterSection;
+      var eol = stream.eol();
+
+      state.afterSection = false;
+
+      if (sol) {
+        if (state.nextMultiline) {
+          state.inMultiline = true;
+          state.nextMultiline = false;
+        } else {
+          state.position = "def";
+        }
+      }
+
+      if (eol && ! state.nextMultiline) {
+        state.inMultiline = false;
+        state.position = "def";
+      }
+
+      if (sol) {
+        while(stream.eatSpace()) {}
+      }
+
+      var ch = stream.next();
+
+      if (sol && (ch === "#" || ch === "!" || ch === ";")) {
+        state.position = "comment";
+        stream.skipToEnd();
+        return "comment";
+      } else if (sol && ch === "[") {
+        state.afterSection = true;
+        stream.skipTo("]"); stream.eat("]");
+        return "header";
+      } else if (ch === "=" || ch === ":") {
+        state.position = "quote";
+        return null;
+      } else if (ch === "\\" && state.position === "quote") {
+        if (stream.eol()) {  // end of line?
+          // Multiline value
+          state.nextMultiline = true;
+        }
+      }
+
+      return state.position;
+    },
+
+    startState: function() {
+      return {
+        position : "def",       // Current position, "def", "quote" or "comment"
+        nextMultiline : false,  // Is the next line multiline value
+        inMultiline : false,    // Is the current line a multiline value
+        afterSection : false    // Did we just open a section
+      };
+    }
+
+  };
+});
+
+CodeMirror.defineMIME("text/x-properties", "properties");
+CodeMirror.defineMIME("text/x-ini", "properties");
+
+});
diff --git a/public/codemirror/mode/protobuf/index.html b/public/codemirror/mode/protobuf/index.html
new file mode 100644
index 000000000..cfe7b9dcd
--- /dev/null
+++ b/public/codemirror/mode/protobuf/index.html
@@ -0,0 +1,64 @@
+
+
+CodeMirror: ProtoBuf mode
+
+
+
+
+
+
+
+
+
+

+
ProtoBuf mode

+

+    
+
+    
MIME types defined: text/x-protobuf.

+
+  

diff --git a/public/codemirror/mode/protobuf/protobuf.js b/public/codemirror/mode/protobuf/protobuf.js
new file mode 100644
index 000000000..bcae276e8
--- /dev/null
+++ b/public/codemirror/mode/protobuf/protobuf.js
@@ -0,0 +1,68 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  function wordRegexp(words) {
+    return new RegExp("^((" + words.join(")|(") + "))\\b", "i");
+  };
+
+  var keywordArray = [
+    "package", "message", "import", "syntax",
+    "required", "optional", "repeated", "reserved", "default", "extensions", "packed",
+    "bool", "bytes", "double", "enum", "float", "string",
+    "int32", "int64", "uint32", "uint64", "sint32", "sint64", "fixed32", "fixed64", "sfixed32", "sfixed64"
+  ];
+  var keywords = wordRegexp(keywordArray);
+
+  CodeMirror.registerHelper("hintWords", "protobuf", keywordArray);
+
+  var identifiers = new RegExp("^[_A-Za-z\xa1-\uffff][_A-Za-z0-9\xa1-\uffff]*");
+
+  function tokenBase(stream) {
+    // whitespaces
+    if (stream.eatSpace()) return null;
+
+    // Handle one line Comments
+    if (stream.match("//")) {
+      stream.skipToEnd();
+      return "comment";
+    }
+
+    // Handle Number Literals
+    if (stream.match(/^[0-9\.+-]/, false)) {
+      if (stream.match(/^[+-]?0x[0-9a-fA-F]+/))
+        return "number";
+      if (stream.match(/^[+-]?\d*\.\d+([EeDd][+-]?\d+)?/))
+        return "number";
+      if (stream.match(/^[+-]?\d+([EeDd][+-]?\d+)?/))
+        return "number";
+    }
+
+    // Handle Strings
+    if (stream.match(/^"([^"]|(""))*"/)) { return "string"; }
+    if (stream.match(/^'([^']|(''))*'/)) { return "string"; }
+
+    // Handle words
+    if (stream.match(keywords)) { return "keyword"; }
+    if (stream.match(identifiers)) { return "variable"; } ;
+
+    // Handle non-detected items
+    stream.next();
+    return null;
+  };
+
+  CodeMirror.defineMode("protobuf", function() {
+    return {token: tokenBase};
+  });
+
+  CodeMirror.defineMIME("text/x-protobuf", "protobuf");
+});
diff --git a/public/codemirror/mode/pug/index.html b/public/codemirror/mode/pug/index.html
new file mode 100644
index 000000000..1765853a1
--- /dev/null
+++ b/public/codemirror/mode/pug/index.html
@@ -0,0 +1,70 @@
+
+
+CodeMirror: Pug Templating Mode
+
+
+
+
+
+
+
+
+
+
+
+
+
+

+
Pug Templating Mode

+

+    
+    
The Pug Templating Mode

+      
 Created by Forbes Lindesay. Managed as part of a Brackets extension at https://github.com/ForbesLindesay/jade-brackets.

+    
MIME type defined: text/x-pug, text/x-jade.

+  

diff --git a/public/codemirror/mode/pug/pug.js b/public/codemirror/mode/pug/pug.js
new file mode 100644
index 000000000..401823365
--- /dev/null
+++ b/public/codemirror/mode/pug/pug.js
@@ -0,0 +1,591 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../javascript/javascript"), require("../css/css"), require("../htmlmixed/htmlmixed"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../javascript/javascript", "../css/css", "../htmlmixed/htmlmixed"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("pug", function (config) {
+  // token types
+  var KEYWORD = 'keyword';
+  var DOCTYPE = 'meta';
+  var ID = 'builtin';
+  var CLASS = 'qualifier';
+
+  var ATTRS_NEST = {
+    '{': '}',
+    '(': ')',
+    '[': ']'
+  };
+
+  var jsMode = CodeMirror.getMode(config, 'javascript');
+
+  function State() {
+    this.javaScriptLine = false;
+    this.javaScriptLineExcludesColon = false;
+
+    this.javaScriptArguments = false;
+    this.javaScriptArgumentsDepth = 0;
+
+    this.isInterpolating = false;
+    this.interpolationNesting = 0;
+
+    this.jsState = CodeMirror.startState(jsMode);
+
+    this.restOfLine = '';
+
+    this.isIncludeFiltered = false;
+    this.isEach = false;
+
+    this.lastTag = '';
+    this.scriptType = '';
+
+    // Attributes Mode
+    this.isAttrs = false;
+    this.attrsNest = [];
+    this.inAttributeName = true;
+    this.attributeIsType = false;
+    this.attrValue = '';
+
+    // Indented Mode
+    this.indentOf = Infinity;
+    this.indentToken = '';
+
+    this.innerMode = null;
+    this.innerState = null;
+
+    this.innerModeForLine = false;
+  }
+  /**
+   * Safely copy a state
+   *
+   * @return {State}
+   */
+  State.prototype.copy = function () {
+    var res = new State();
+    res.javaScriptLine = this.javaScriptLine;
+    res.javaScriptLineExcludesColon = this.javaScriptLineExcludesColon;
+    res.javaScriptArguments = this.javaScriptArguments;
+    res.javaScriptArgumentsDepth = this.javaScriptArgumentsDepth;
+    res.isInterpolating = this.isInterpolating;
+    res.interpolationNesting = this.interpolationNesting;
+
+    res.jsState = CodeMirror.copyState(jsMode, this.jsState);
+
+    res.innerMode = this.innerMode;
+    if (this.innerMode && this.innerState) {
+      res.innerState = CodeMirror.copyState(this.innerMode, this.innerState);
+    }
+
+    res.restOfLine = this.restOfLine;
+
+    res.isIncludeFiltered = this.isIncludeFiltered;
+    res.isEach = this.isEach;
+    res.lastTag = this.lastTag;
+    res.scriptType = this.scriptType;
+    res.isAttrs = this.isAttrs;
+    res.attrsNest = this.attrsNest.slice();
+    res.inAttributeName = this.inAttributeName;
+    res.attributeIsType = this.attributeIsType;
+    res.attrValue = this.attrValue;
+    res.indentOf = this.indentOf;
+    res.indentToken = this.indentToken;
+
+    res.innerModeForLine = this.innerModeForLine;
+
+    return res;
+  };
+
+  function javaScript(stream, state) {
+    if (stream.sol()) {
+      // if javaScriptLine was set at end of line, ignore it
+      state.javaScriptLine = false;
+      state.javaScriptLineExcludesColon = false;
+    }
+    if (state.javaScriptLine) {
+      if (state.javaScriptLineExcludesColon && stream.peek() === ':') {
+        state.javaScriptLine = false;
+        state.javaScriptLineExcludesColon = false;
+        return;
+      }
+      var tok = jsMode.token(stream, state.jsState);
+      if (stream.eol()) state.javaScriptLine = false;
+      return tok || true;
+    }
+  }
+  function javaScriptArguments(stream, state) {
+    if (state.javaScriptArguments) {
+      if (state.javaScriptArgumentsDepth === 0 && stream.peek() !== '(') {
+        state.javaScriptArguments = false;
+        return;
+      }
+      if (stream.peek() === '(') {
+        state.javaScriptArgumentsDepth++;
+      } else if (stream.peek() === ')') {
+        state.javaScriptArgumentsDepth--;
+      }
+      if (state.javaScriptArgumentsDepth === 0) {
+        state.javaScriptArguments = false;
+        return;
+      }
+
+      var tok = jsMode.token(stream, state.jsState);
+      return tok || true;
+    }
+  }
+
+  function yieldStatement(stream) {
+    if (stream.match(/^yield\b/)) {
+        return 'keyword';
+    }
+  }
+
+  function doctype(stream) {
+    if (stream.match(/^(?:doctype) *([^\n]+)?/)) {
+        return DOCTYPE;
+    }
+  }
+
+  function interpolation(stream, state) {
+    if (stream.match('#{')) {
+      state.isInterpolating = true;
+      state.interpolationNesting = 0;
+      return 'punctuation';
+    }
+  }
+
+  function interpolationContinued(stream, state) {
+    if (state.isInterpolating) {
+      if (stream.peek() === '}') {
+        state.interpolationNesting--;
+        if (state.interpolationNesting < 0) {
+          stream.next();
+          state.isInterpolating = false;
+          return 'punctuation';
+        }
+      } else if (stream.peek() === '{') {
+        state.interpolationNesting++;
+      }
+      return jsMode.token(stream, state.jsState) || true;
+    }
+  }
+
+  function caseStatement(stream, state) {
+    if (stream.match(/^case\b/)) {
+      state.javaScriptLine = true;
+      return KEYWORD;
+    }
+  }
+
+  function when(stream, state) {
+    if (stream.match(/^when\b/)) {
+      state.javaScriptLine = true;
+      state.javaScriptLineExcludesColon = true;
+      return KEYWORD;
+    }
+  }
+
+  function defaultStatement(stream) {
+    if (stream.match(/^default\b/)) {
+      return KEYWORD;
+    }
+  }
+
+  function extendsStatement(stream, state) {
+    if (stream.match(/^extends?\b/)) {
+      state.restOfLine = 'string';
+      return KEYWORD;
+    }
+  }
+
+  function append(stream, state) {
+    if (stream.match(/^append\b/)) {
+      state.restOfLine = 'variable';
+      return KEYWORD;
+    }
+  }
+  function prepend(stream, state) {
+    if (stream.match(/^prepend\b/)) {
+      state.restOfLine = 'variable';
+      return KEYWORD;
+    }
+  }
+  function block(stream, state) {
+    if (stream.match(/^block\b *(?:(prepend|append)\b)?/)) {
+      state.restOfLine = 'variable';
+      return KEYWORD;
+    }
+  }
+
+  function include(stream, state) {
+    if (stream.match(/^include\b/)) {
+      state.restOfLine = 'string';
+      return KEYWORD;
+    }
+  }
+
+  function includeFiltered(stream, state) {
+    if (stream.match(/^include:([a-zA-Z0-9\-]+)/, false) && stream.match('include')) {
+      state.isIncludeFiltered = true;
+      return KEYWORD;
+    }
+  }
+
+  function includeFilteredContinued(stream, state) {
+    if (state.isIncludeFiltered) {
+      var tok = filter(stream, state);
+      state.isIncludeFiltered = false;
+      state.restOfLine = 'string';
+      return tok;
+    }
+  }
+
+  function mixin(stream, state) {
+    if (stream.match(/^mixin\b/)) {
+      state.javaScriptLine = true;
+      return KEYWORD;
+    }
+  }
+
+  function call(stream, state) {
+    if (stream.match(/^\+([-\w]+)/)) {
+      if (!stream.match(/^\( *[-\w]+ *=/, false)) {
+        state.javaScriptArguments = true;
+        state.javaScriptArgumentsDepth = 0;
+      }
+      return 'variable';
+    }
+    if (stream.match(/^\+#{/, false)) {
+      stream.next();
+      state.mixinCallAfter = true;
+      return interpolation(stream, state);
+    }
+  }
+  function callArguments(stream, state) {
+    if (state.mixinCallAfter) {
+      state.mixinCallAfter = false;
+      if (!stream.match(/^\( *[-\w]+ *=/, false)) {
+        state.javaScriptArguments = true;
+        state.javaScriptArgumentsDepth = 0;
+      }
+      return true;
+    }
+  }
+
+  function conditional(stream, state) {
+    if (stream.match(/^(if|unless|else if|else)\b/)) {
+      state.javaScriptLine = true;
+      return KEYWORD;
+    }
+  }
+
+  function each(stream, state) {
+    if (stream.match(/^(- *)?(each|for)\b/)) {
+      state.isEach = true;
+      return KEYWORD;
+    }
+  }
+  function eachContinued(stream, state) {
+    if (state.isEach) {
+      if (stream.match(/^ in\b/)) {
+        state.javaScriptLine = true;
+        state.isEach = false;
+        return KEYWORD;
+      } else if (stream.sol() || stream.eol()) {
+        state.isEach = false;
+      } else if (stream.next()) {
+        while (!stream.match(/^ in\b/, false) && stream.next());
+        return 'variable';
+      }
+    }
+  }
+
+  function whileStatement(stream, state) {
+    if (stream.match(/^while\b/)) {
+      state.javaScriptLine = true;
+      return KEYWORD;
+    }
+  }
+
+  function tag(stream, state) {
+    var captures;
+    if (captures = stream.match(/^(\w(?:[-:\w]*\w)?)\/?/)) {
+      state.lastTag = captures[1].toLowerCase();
+      if (state.lastTag === 'script') {
+        state.scriptType = 'application/javascript';
+      }
+      return 'tag';
+    }
+  }
+
+  function filter(stream, state) {
+    if (stream.match(/^:([\w\-]+)/)) {
+      var innerMode;
+      if (config && config.innerModes) {
+        innerMode = config.innerModes(stream.current().substring(1));
+      }
+      if (!innerMode) {
+        innerMode = stream.current().substring(1);
+      }
+      if (typeof innerMode === 'string') {
+        innerMode = CodeMirror.getMode(config, innerMode);
+      }
+      setInnerMode(stream, state, innerMode);
+      return 'atom';
+    }
+  }
+
+  function code(stream, state) {
+    if (stream.match(/^(!?=|-)/)) {
+      state.javaScriptLine = true;
+      return 'punctuation';
+    }
+  }
+
+  function id(stream) {
+    if (stream.match(/^#([\w-]+)/)) {
+      return ID;
+    }
+  }
+
+  function className(stream) {
+    if (stream.match(/^\.([\w-]+)/)) {
+      return CLASS;
+    }
+  }
+
+  function attrs(stream, state) {
+    if (stream.peek() == '(') {
+      stream.next();
+      state.isAttrs = true;
+      state.attrsNest = [];
+      state.inAttributeName = true;
+      state.attrValue = '';
+      state.attributeIsType = false;
+      return 'punctuation';
+    }
+  }
+
+  function attrsContinued(stream, state) {
+    if (state.isAttrs) {
+      if (ATTRS_NEST[stream.peek()]) {
+        state.attrsNest.push(ATTRS_NEST[stream.peek()]);
+      }
+      if (state.attrsNest[state.attrsNest.length - 1] === stream.peek()) {
+        state.attrsNest.pop();
+      } else  if (stream.eat(')')) {
+        state.isAttrs = false;
+        return 'punctuation';
+      }
+      if (state.inAttributeName && stream.match(/^[^=,\)!]+/)) {
+        if (stream.peek() === '=' || stream.peek() === '!') {
+          state.inAttributeName = false;
+          state.jsState = CodeMirror.startState(jsMode);
+          if (state.lastTag === 'script' && stream.current().trim().toLowerCase() === 'type') {
+            state.attributeIsType = true;
+          } else {
+            state.attributeIsType = false;
+          }
+        }
+        return 'attribute';
+      }
+
+      var tok = jsMode.token(stream, state.jsState);
+      if (state.attributeIsType && tok === 'string') {
+        state.scriptType = stream.current().toString();
+      }
+      if (state.attrsNest.length === 0 && (tok === 'string' || tok === 'variable' || tok === 'keyword')) {
+        try {
+          Function('', 'var x ' + state.attrValue.replace(/,\s*$/, '').replace(/^!/, ''));
+          state.inAttributeName = true;
+          state.attrValue = '';
+          stream.backUp(stream.current().length);
+          return attrsContinued(stream, state);
+        } catch (ex) {
+          //not the end of an attribute
+        }
+      }
+      state.attrValue += stream.current();
+      return tok || true;
+    }
+  }
+
+  function attributesBlock(stream, state) {
+    if (stream.match(/^&attributes\b/)) {
+      state.javaScriptArguments = true;
+      state.javaScriptArgumentsDepth = 0;
+      return 'keyword';
+    }
+  }
+
+  function indent(stream) {
+    if (stream.sol() && stream.eatSpace()) {
+      return 'indent';
+    }
+  }
+
+  function comment(stream, state) {
+    if (stream.match(/^ *\/\/(-)?([^\n]*)/)) {
+      state.indentOf = stream.indentation();
+      state.indentToken = 'comment';
+      return 'comment';
+    }
+  }
+
+  function colon(stream) {
+    if (stream.match(/^: */)) {
+      return 'colon';
+    }
+  }
+
+  function text(stream, state) {
+    if (stream.match(/^(?:\| ?| )([^\n]+)/)) {
+      return 'string';
+    }
+    if (stream.match(/^(<[^\n]*)/, false)) {
+      // html string
+      setInnerMode(stream, state, 'htmlmixed');
+      state.innerModeForLine = true;
+      return innerMode(stream, state, true);
+    }
+  }
+
+  function dot(stream, state) {
+    if (stream.eat('.')) {
+      var innerMode = null;
+      if (state.lastTag === 'script' && state.scriptType.toLowerCase().indexOf('javascript') != -1) {
+        innerMode = state.scriptType.toLowerCase().replace(/"|'/g, '');
+      } else if (state.lastTag === 'style') {
+        innerMode = 'css';
+      }
+      setInnerMode(stream, state, innerMode);
+      return 'dot';
+    }
+  }
+
+  function fail(stream) {
+    stream.next();
+    return null;
+  }
+
+
+  function setInnerMode(stream, state, mode) {
+    mode = CodeMirror.mimeModes[mode] || mode;
+    mode = config.innerModes ? config.innerModes(mode) || mode : mode;
+    mode = CodeMirror.mimeModes[mode] || mode;
+    mode = CodeMirror.getMode(config, mode);
+    state.indentOf = stream.indentation();
+
+    if (mode && mode.name !== 'null') {
+      state.innerMode = mode;
+    } else {
+      state.indentToken = 'string';
+    }
+  }
+  function innerMode(stream, state, force) {
+    if (stream.indentation() > state.indentOf || (state.innerModeForLine && !stream.sol()) || force) {
+      if (state.innerMode) {
+        if (!state.innerState) {
+          state.innerState = state.innerMode.startState ? CodeMirror.startState(state.innerMode, stream.indentation()) : {};
+        }
+        return stream.hideFirstChars(state.indentOf + 2, function () {
+          return state.innerMode.token(stream, state.innerState) || true;
+        });
+      } else {
+        stream.skipToEnd();
+        return state.indentToken;
+      }
+    } else if (stream.sol()) {
+      state.indentOf = Infinity;
+      state.indentToken = null;
+      state.innerMode = null;
+      state.innerState = null;
+    }
+  }
+  function restOfLine(stream, state) {
+    if (stream.sol()) {
+      // if restOfLine was set at end of line, ignore it
+      state.restOfLine = '';
+    }
+    if (state.restOfLine) {
+      stream.skipToEnd();
+      var tok = state.restOfLine;
+      state.restOfLine = '';
+      return tok;
+    }
+  }
+
+
+  function startState() {
+    return new State();
+  }
+  function copyState(state) {
+    return state.copy();
+  }
+  /**
+   * Get the next token in the stream
+   *
+   * @param {Stream} stream
+   * @param {State} state
+   */
+  function nextToken(stream, state) {
+    var tok = innerMode(stream, state)
+      || restOfLine(stream, state)
+      || interpolationContinued(stream, state)
+      || includeFilteredContinued(stream, state)
+      || eachContinued(stream, state)
+      || attrsContinued(stream, state)
+      || javaScript(stream, state)
+      || javaScriptArguments(stream, state)
+      || callArguments(stream, state)
+
+      || yieldStatement(stream, state)
+      || doctype(stream, state)
+      || interpolation(stream, state)
+      || caseStatement(stream, state)
+      || when(stream, state)
+      || defaultStatement(stream, state)
+      || extendsStatement(stream, state)
+      || append(stream, state)
+      || prepend(stream, state)
+      || block(stream, state)
+      || include(stream, state)
+      || includeFiltered(stream, state)
+      || mixin(stream, state)
+      || call(stream, state)
+      || conditional(stream, state)
+      || each(stream, state)
+      || whileStatement(stream, state)
+      || tag(stream, state)
+      || filter(stream, state)
+      || code(stream, state)
+      || id(stream, state)
+      || className(stream, state)
+      || attrs(stream, state)
+      || attributesBlock(stream, state)
+      || indent(stream, state)
+      || text(stream, state)
+      || comment(stream, state)
+      || colon(stream, state)
+      || dot(stream, state)
+      || fail(stream, state);
+
+    return tok === true ? null : tok;
+  }
+  return {
+    startState: startState,
+    copyState: copyState,
+    token: nextToken
+  };
+}, 'javascript', 'css', 'htmlmixed');
+
+CodeMirror.defineMIME('text/x-pug', 'pug');
+CodeMirror.defineMIME('text/x-jade', 'pug');
+
+});
diff --git a/public/codemirror/mode/puppet/index.html b/public/codemirror/mode/puppet/index.html
new file mode 100644
index 000000000..5614c3695
--- /dev/null
+++ b/public/codemirror/mode/puppet/index.html
@@ -0,0 +1,121 @@
+
+
+CodeMirror: Puppet mode
+
+
+
+
+
+
+
+
+
+
+

+
Puppet mode

+

+    
+
+    
MIME types defined: text/x-puppet.

+
+  

diff --git a/public/codemirror/mode/puppet/puppet.js b/public/codemirror/mode/puppet/puppet.js
new file mode 100644
index 000000000..57041300a
--- /dev/null
+++ b/public/codemirror/mode/puppet/puppet.js
@@ -0,0 +1,220 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("puppet", function () {
+  // Stores the words from the define method
+  var words = {};
+  // Taken, mostly, from the Puppet official variable standards regex
+  var variable_regex = /({)?([a-z][a-z0-9_]*)?((::[a-z][a-z0-9_]*)*::)?[a-zA-Z0-9_]+(})?/;
+
+  // Takes a string of words separated by spaces and adds them as
+  // keys with the value of the first argument 'style'
+  function define(style, string) {
+    var split = string.split(' ');
+    for (var i = 0; i < split.length; i++) {
+      words[split[i]] = style;
+    }
+  }
+
+  // Takes commonly known puppet types/words and classifies them to a style
+  define('keyword', 'class define site node include import inherits');
+  define('keyword', 'case if else in and elsif default or');
+  define('atom', 'false true running present absent file directory undef');
+  define('builtin', 'action augeas burst chain computer cron destination dport exec ' +
+    'file filebucket group host icmp iniface interface jump k5login limit log_level ' +
+    'log_prefix macauthorization mailalias maillist mcx mount nagios_command ' +
+    'nagios_contact nagios_contactgroup nagios_host nagios_hostdependency ' +
+    'nagios_hostescalation nagios_hostextinfo nagios_hostgroup nagios_service ' +
+    'nagios_servicedependency nagios_serviceescalation nagios_serviceextinfo ' +
+    'nagios_servicegroup nagios_timeperiod name notify outiface package proto reject ' +
+    'resources router schedule scheduled_task selboolean selmodule service source ' +
+    'sport ssh_authorized_key sshkey stage state table tidy todest toports tosource ' +
+    'user vlan yumrepo zfs zone zpool');
+
+  // After finding a start of a string ('|") this function attempts to find the end;
+  // If a variable is encountered along the way, we display it differently when it
+  // is encapsulated in a double-quoted string.
+  function tokenString(stream, state) {
+    var current, prev, found_var = false;
+    while (!stream.eol() && (current = stream.next()) != state.pending) {
+      if (current === '$' && prev != '\\' && state.pending == '"') {
+        found_var = true;
+        break;
+      }
+      prev = current;
+    }
+    if (found_var) {
+      stream.backUp(1);
+    }
+    if (current == state.pending) {
+      state.continueString = false;
+    } else {
+      state.continueString = true;
+    }
+    return "string";
+  }
+
+  // Main function
+  function tokenize(stream, state) {
+    // Matches one whole word
+    var word = stream.match(/[\w]+/, false);
+    // Matches attributes (i.e. ensure => present ; 'ensure' would be matched)
+    var attribute = stream.match(/(\s+)?\w+\s+=>.*/, false);
+    // Matches non-builtin resource declarations
+    // (i.e. "apache::vhost {" or "mycustomclasss {" would be matched)
+    var resource = stream.match(/(\s+)?[\w:_]+(\s+)?{/, false);
+    // Matches virtual and exported resources (i.e. @@user { ; and the like)
+    var special_resource = stream.match(/(\s+)?[@]{1,2}[\w:_]+(\s+)?{/, false);
+
+    // Finally advance the stream
+    var ch = stream.next();
+
+    // Have we found a variable?
+    if (ch === '$') {
+      if (stream.match(variable_regex)) {
+        // If so, and its in a string, assign it a different color
+        return state.continueString ? 'variable-2' : 'variable';
+      }
+      // Otherwise return an invalid variable
+      return "error";
+    }
+    // Should we still be looking for the end of a string?
+    if (state.continueString) {
+      // If so, go through the loop again
+      stream.backUp(1);
+      return tokenString(stream, state);
+    }
+    // Are we in a definition (class, node, define)?
+    if (state.inDefinition) {
+      // If so, return def (i.e. for 'class myclass {' ; 'myclass' would be matched)
+      if (stream.match(/(\s+)?[\w:_]+(\s+)?/)) {
+        return 'def';
+      }
+      // Match the rest it the next time around
+      stream.match(/\s+{/);
+      state.inDefinition = false;
+    }
+    // Are we in an 'include' statement?
+    if (state.inInclude) {
+      // Match and return the included class
+      stream.match(/(\s+)?\S+(\s+)?/);
+      state.inInclude = false;
+      return 'def';
+    }
+    // Do we just have a function on our hands?
+    // In 'ensure_resource("myclass")', 'ensure_resource' is matched
+    if (stream.match(/(\s+)?\w+\(/)) {
+      stream.backUp(1);
+      return 'def';
+    }
+    // Have we matched the prior attribute regex?
+    if (attribute) {
+      stream.match(/(\s+)?\w+/);
+      return 'tag';
+    }
+    // Do we have Puppet specific words?
+    if (word && words.hasOwnProperty(word)) {
+      // Negates the initial next()
+      stream.backUp(1);
+      // rs move the stream
+      stream.match(/[\w]+/);
+      // We want to process these words differently
+      // do to the importance they have in Puppet
+      if (stream.match(/\s+\S+\s+{/, false)) {
+        state.inDefinition = true;
+      }
+      if (word == 'include') {
+        state.inInclude = true;
+      }
+      // Returns their value as state in the prior define methods
+      return words[word];
+    }
+    // Is there a match on a reference?
+    if (/(^|\s+)[A-Z][\w:_]+/.test(word)) {
+      // Negate the next()
+      stream.backUp(1);
+      // Match the full reference
+      stream.match(/(^|\s+)[A-Z][\w:_]+/);
+      return 'def';
+    }
+    // Have we matched the prior resource regex?
+    if (resource) {
+      stream.match(/(\s+)?[\w:_]+/);
+      return 'def';
+    }
+    // Have we matched the prior special_resource regex?
+    if (special_resource) {
+      stream.match(/(\s+)?[@]{1,2}/);
+      return 'special';
+    }
+    // Match all the comments. All of them.
+    if (ch == "#") {
+      stream.skipToEnd();
+      return "comment";
+    }
+    // Have we found a string?
+    if (ch == "'" || ch == '"') {
+      // Store the type (single or double)
+      state.pending = ch;
+      // Perform the looping function to find the end
+      return tokenString(stream, state);
+    }
+    // Match all the brackets
+    if (ch == '{' || ch == '}') {
+      return 'bracket';
+    }
+    // Match characters that we are going to assume
+    // are trying to be regex
+    if (ch == '/') {
+      stream.match(/.*?\//);
+      return 'variable-3';
+    }
+    // Match all the numbers
+    if (ch.match(/[0-9]/)) {
+      stream.eatWhile(/[0-9]+/);
+      return 'number';
+    }
+    // Match the '=' and '=>' operators
+    if (ch == '=') {
+      if (stream.peek() == '>') {
+          stream.next();
+      }
+      return "operator";
+    }
+    // Keep advancing through all the rest
+    stream.eatWhile(/[\w-]/);
+    // Return a blank line for everything else
+    return null;
+  }
+  // Start it all
+  return {
+    startState: function () {
+      var state = {};
+      state.inDefinition = false;
+      state.inInclude = false;
+      state.continueString = false;
+      state.pending = false;
+      return state;
+    },
+    token: function (stream, state) {
+      // Strip the spaces, but regex will account for them eitherway
+      if (stream.eatSpace()) return null;
+      // Go through the main process
+      return tokenize(stream, state);
+    }
+  };
+});
+
+CodeMirror.defineMIME("text/x-puppet", "puppet");
+
+});
diff --git a/public/codemirror/mode/python/index.html b/public/codemirror/mode/python/index.html
new file mode 100644
index 000000000..0ac02a333
--- /dev/null
+++ b/public/codemirror/mode/python/index.html
@@ -0,0 +1,198 @@
+
+
+CodeMirror: Python mode
+
+
+
+
+
+
+
+
+
+
+

+
Python mode

+
+    

+
+
+
Cython mode

+
+

+
+    
+    
Configuration Options for Python mode:

+    
    
+      
  • version - 2/3 - The version of Python to recognize.  Default is 3.
    • 
+      
  • singleLineStringErrors - true/false - If you have a single-line string that is not terminated at the end of the line, this will show subsequent lines as errors if true, otherwise it will consider the newline as the end of the string. Default is false.
    • 
+      
  • hangingIndent - int - If you want to write long arguments to a function starting on a new line, how much that line should be indented. Defaults to one normal indentation unit.
    • 
+    

+    
Advanced Configuration Options:

+    
Usefull for superset of python syntax like Enthought enaml, IPython magics and  questionmark help

+    
    
+      
  • singleOperators - RegEx - Regular Expression for single operator matching,  default : 
    ^[\\+\\-\\*/%&|\\^~<>!]
     including 
    @
     on Python 3
    • 
+      
  • singleDelimiters - RegEx - Regular Expression for single delimiter matching, default :  
    ^[\\(\\)\\[\\]\\{\\}@,:`=;\\.]
    • 
+      
  • doubleOperators - RegEx - Regular Expression for double operators matching, default : 
    ^((==)|(!=)|(<=)|(>=)|(<>)|(<<)|(>>)|(//)|(\\*\\*))
    • 
+      
  • doubleDelimiters - RegEx - Regular Expression for double delimiters matching, default : 
    ^((\\+=)|(\\-=)|(\\*=)|(%=)|(/=)|(&=)|(\\|=)|(\\^=))
    • 
+      
  • tripleDelimiters - RegEx - Regular Expression for triple delimiters matching, default : 
    ^((//=)|(>>=)|(<<=)|(\\*\\*=))
    • 
+      
  • identifiers - RegEx - Regular Expression for identifier, default : 
    ^[_A-Za-z][_A-Za-z0-9]*
     on Python 2 and 
    ^[_A-Za-z\u00A1-\uFFFF][_A-Za-z0-9\u00A1-\uFFFF]*
     on Python 3.
    • 
+      
  • extra_keywords - list of string - List of extra words ton consider as keywords
    • 
+      
  • extra_builtins - list of string - List of extra words ton consider as builtins
    • 
+    

+
+
+    
MIME types defined: text/x-python and text/x-cython.

+  

diff --git a/public/codemirror/mode/python/python.js b/public/codemirror/mode/python/python.js
new file mode 100644
index 000000000..b539d84aa
--- /dev/null
+++ b/public/codemirror/mode/python/python.js
@@ -0,0 +1,340 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  function wordRegexp(words) {
+    return new RegExp("^((" + words.join(")|(") + "))\\b");
+  }
+
+  var wordOperators = wordRegexp(["and", "or", "not", "is"]);
+  var commonKeywords = ["as", "assert", "break", "class", "continue",
+                        "def", "del", "elif", "else", "except", "finally",
+                        "for", "from", "global", "if", "import",
+                        "lambda", "pass", "raise", "return",
+                        "try", "while", "with", "yield", "in"];
+  var commonBuiltins = ["abs", "all", "any", "bin", "bool", "bytearray", "callable", "chr",
+                        "classmethod", "compile", "complex", "delattr", "dict", "dir", "divmod",
+                        "enumerate", "eval", "filter", "float", "format", "frozenset",
+                        "getattr", "globals", "hasattr", "hash", "help", "hex", "id",
+                        "input", "int", "isinstance", "issubclass", "iter", "len",
+                        "list", "locals", "map", "max", "memoryview", "min", "next",
+                        "object", "oct", "open", "ord", "pow", "property", "range",
+                        "repr", "reversed", "round", "set", "setattr", "slice",
+                        "sorted", "staticmethod", "str", "sum", "super", "tuple",
+                        "type", "vars", "zip", "__import__", "NotImplemented",
+                        "Ellipsis", "__debug__"];
+  CodeMirror.registerHelper("hintWords", "python", commonKeywords.concat(commonBuiltins));
+
+  function top(state) {
+    return state.scopes[state.scopes.length - 1];
+  }
+
+  CodeMirror.defineMode("python", function(conf, parserConf) {
+    var ERRORCLASS = "error";
+
+    var singleDelimiters = parserConf.singleDelimiters || /^[\(\)\[\]\{\}@,:`=;\.]/;
+    var doubleOperators = parserConf.doubleOperators || /^([!<>]==|<>|<<|>>|\/\/|\*\*)/;
+    var doubleDelimiters = parserConf.doubleDelimiters || /^(\+=|\-=|\*=|%=|\/=|&=|\|=|\^=)/;
+    var tripleDelimiters = parserConf.tripleDelimiters || /^(\/\/=|>>=|<<=|\*\*=)/;
+
+    var hangingIndent = parserConf.hangingIndent || conf.indentUnit;
+
+    var myKeywords = commonKeywords, myBuiltins = commonBuiltins;
+    if (parserConf.extra_keywords != undefined)
+      myKeywords = myKeywords.concat(parserConf.extra_keywords);
+
+    if (parserConf.extra_builtins != undefined)
+      myBuiltins = myBuiltins.concat(parserConf.extra_builtins);
+
+    var py3 = !(parserConf.version && Number(parserConf.version) < 3)
+    if (py3) {
+      // since http://legacy.python.org/dev/peps/pep-0465/ @ is also an operator
+      var singleOperators = parserConf.singleOperators || /^[\+\-\*\/%&|\^~<>!@]/;
+      var identifiers = parserConf.identifiers|| /^[_A-Za-z\u00A1-\uFFFF][_A-Za-z0-9\u00A1-\uFFFF]*/;
+      myKeywords = myKeywords.concat(["nonlocal", "False", "True", "None", "async", "await"]);
+      myBuiltins = myBuiltins.concat(["ascii", "bytes", "exec", "print"]);
+      var stringPrefixes = new RegExp("^(([rbuf]|(br))?('{3}|\"{3}|['\"]))", "i");
+    } else {
+      var singleOperators = parserConf.singleOperators || /^[\+\-\*\/%&|\^~<>!]/;
+      var identifiers = parserConf.identifiers|| /^[_A-Za-z][_A-Za-z0-9]*/;
+      myKeywords = myKeywords.concat(["exec", "print"]);
+      myBuiltins = myBuiltins.concat(["apply", "basestring", "buffer", "cmp", "coerce", "execfile",
+                                      "file", "intern", "long", "raw_input", "reduce", "reload",
+                                      "unichr", "unicode", "xrange", "False", "True", "None"]);
+      var stringPrefixes = new RegExp("^(([rubf]|(ur)|(br))?('{3}|\"{3}|['\"]))", "i");
+    }
+    var keywords = wordRegexp(myKeywords);
+    var builtins = wordRegexp(myBuiltins);
+
+    // tokenizers
+    function tokenBase(stream, state) {
+      if (stream.sol()) state.indent = stream.indentation()
+      // Handle scope changes
+      if (stream.sol() && top(state).type == "py") {
+        var scopeOffset = top(state).offset;
+        if (stream.eatSpace()) {
+          var lineOffset = stream.indentation();
+          if (lineOffset > scopeOffset)
+            pushPyScope(state);
+          else if (lineOffset < scopeOffset && dedent(stream, state) && stream.peek() != "#")
+            state.errorToken = true;
+          return null;
+        } else {
+          var style = tokenBaseInner(stream, state);
+          if (scopeOffset > 0 && dedent(stream, state))
+            style += " " + ERRORCLASS;
+          return style;
+        }
+      }
+      return tokenBaseInner(stream, state);
+    }
+
+    function tokenBaseInner(stream, state) {
+      if (stream.eatSpace()) return null;
+
+      var ch = stream.peek();
+
+      // Handle Comments
+      if (ch == "#") {
+        stream.skipToEnd();
+        return "comment";
+      }
+
+      // Handle Number Literals
+      if (stream.match(/^[0-9\.]/, false)) {
+        var floatLiteral = false;
+        // Floats
+        if (stream.match(/^[\d_]*\.\d+(e[\+\-]?\d+)?/i)) { floatLiteral = true; }
+        if (stream.match(/^[\d_]+\.\d*/)) { floatLiteral = true; }
+        if (stream.match(/^\.\d+/)) { floatLiteral = true; }
+        if (floatLiteral) {
+          // Float literals may be "imaginary"
+          stream.eat(/J/i);
+          return "number";
+        }
+        // Integers
+        var intLiteral = false;
+        // Hex
+        if (stream.match(/^0x[0-9a-f_]+/i)) intLiteral = true;
+        // Binary
+        if (stream.match(/^0b[01_]+/i)) intLiteral = true;
+        // Octal
+        if (stream.match(/^0o[0-7_]+/i)) intLiteral = true;
+        // Decimal
+        if (stream.match(/^[1-9][\d_]*(e[\+\-]?[\d_]+)?/)) {
+          // Decimal literals may be "imaginary"
+          stream.eat(/J/i);
+          // TODO - Can you have imaginary longs?
+          intLiteral = true;
+        }
+        // Zero by itself with no other piece of number.
+        if (stream.match(/^0(?![\dx])/i)) intLiteral = true;
+        if (intLiteral) {
+          // Integer literals may be "long"
+          stream.eat(/L/i);
+          return "number";
+        }
+      }
+
+      // Handle Strings
+      if (stream.match(stringPrefixes)) {
+        state.tokenize = tokenStringFactory(stream.current());
+        return state.tokenize(stream, state);
+      }
+
+      // Handle operators and Delimiters
+      if (stream.match(tripleDelimiters) || stream.match(doubleDelimiters))
+        return "punctuation";
+
+      if (stream.match(doubleOperators) || stream.match(singleOperators))
+        return "operator";
+
+      if (stream.match(singleDelimiters))
+        return "punctuation";
+
+      if (state.lastToken == "." && stream.match(identifiers))
+        return "property";
+
+      if (stream.match(keywords) || stream.match(wordOperators))
+        return "keyword";
+
+      if (stream.match(builtins))
+        return "builtin";
+
+      if (stream.match(/^(self|cls)\b/))
+        return "variable-2";
+
+      if (stream.match(identifiers)) {
+        if (state.lastToken == "def" || state.lastToken == "class")
+          return "def";
+        return "variable";
+      }
+
+      // Handle non-detected items
+      stream.next();
+      return ERRORCLASS;
+    }
+
+    function tokenStringFactory(delimiter) {
+      while ("rubf".indexOf(delimiter.charAt(0).toLowerCase()) >= 0)
+        delimiter = delimiter.substr(1);
+
+      var singleline = delimiter.length == 1;
+      var OUTCLASS = "string";
+
+      function tokenString(stream, state) {
+        while (!stream.eol()) {
+          stream.eatWhile(/[^'"\\]/);
+          if (stream.eat("\\")) {
+            stream.next();
+            if (singleline && stream.eol())
+              return OUTCLASS;
+          } else if (stream.match(delimiter)) {
+            state.tokenize = tokenBase;
+            return OUTCLASS;
+          } else {
+            stream.eat(/['"]/);
+          }
+        }
+        if (singleline) {
+          if (parserConf.singleLineStringErrors)
+            return ERRORCLASS;
+          else
+            state.tokenize = tokenBase;
+        }
+        return OUTCLASS;
+      }
+      tokenString.isString = true;
+      return tokenString;
+    }
+
+    function pushPyScope(state) {
+      while (top(state).type != "py") state.scopes.pop()
+      state.scopes.push({offset: top(state).offset + conf.indentUnit,
+                         type: "py",
+                         align: null})
+    }
+
+    function pushBracketScope(stream, state, type) {
+      var align = stream.match(/^([\s\[\{\(]|#.*)*$/, false) ? null : stream.column() + 1
+      state.scopes.push({offset: state.indent + hangingIndent,
+                         type: type,
+                         align: align})
+    }
+
+    function dedent(stream, state) {
+      var indented = stream.indentation();
+      while (state.scopes.length > 1 && top(state).offset > indented) {
+        if (top(state).type != "py") return true;
+        state.scopes.pop();
+      }
+      return top(state).offset != indented;
+    }
+
+    function tokenLexer(stream, state) {
+      if (stream.sol()) state.beginningOfLine = true;
+
+      var style = state.tokenize(stream, state);
+      var current = stream.current();
+
+      // Handle decorators
+      if (state.beginningOfLine && current == "@")
+        return stream.match(identifiers, false) ? "meta" : py3 ? "operator" : ERRORCLASS;
+
+      if (/\S/.test(current)) state.beginningOfLine = false;
+
+      if ((style == "variable" || style == "builtin")
+          && state.lastToken == "meta")
+        style = "meta";
+
+      // Handle scope changes.
+      if (current == "pass" || current == "return")
+        state.dedent += 1;
+
+      if (current == "lambda") state.lambda = true;
+      if (current == ":" && !state.lambda && top(state).type == "py")
+        pushPyScope(state);
+
+      var delimiter_index = current.length == 1 ? "[({".indexOf(current) : -1;
+      if (delimiter_index != -1)
+        pushBracketScope(stream, state, "])}".slice(delimiter_index, delimiter_index+1));
+
+      delimiter_index = "])}".indexOf(current);
+      if (delimiter_index != -1) {
+        if (top(state).type == current) state.indent = state.scopes.pop().offset - hangingIndent
+        else return ERRORCLASS;
+      }
+      if (state.dedent > 0 && stream.eol() && top(state).type == "py") {
+        if (state.scopes.length > 1) state.scopes.pop();
+        state.dedent -= 1;
+      }
+
+      return style;
+    }
+
+    var external = {
+      startState: function(basecolumn) {
+        return {
+          tokenize: tokenBase,
+          scopes: [{offset: basecolumn || 0, type: "py", align: null}],
+          indent: basecolumn || 0,
+          lastToken: null,
+          lambda: false,
+          dedent: 0
+        };
+      },
+
+      token: function(stream, state) {
+        var addErr = state.errorToken;
+        if (addErr) state.errorToken = false;
+        var style = tokenLexer(stream, state);
+
+        if (style && style != "comment")
+          state.lastToken = (style == "keyword" || style == "punctuation") ? stream.current() : style;
+        if (style == "punctuation") style = null;
+
+        if (stream.eol() && state.lambda)
+          state.lambda = false;
+        return addErr ? style + " " + ERRORCLASS : style;
+      },
+
+      indent: function(state, textAfter) {
+        if (state.tokenize != tokenBase)
+          return state.tokenize.isString ? CodeMirror.Pass : 0;
+
+        var scope = top(state), closing = scope.type == textAfter.charAt(0)
+        if (scope.align != null)
+          return scope.align - (closing ? 1 : 0)
+        else
+          return scope.offset - (closing ? hangingIndent : 0)
+      },
+
+      electricInput: /^\s*[\}\]\)]$/,
+      closeBrackets: {triples: "'\""},
+      lineComment: "#",
+      fold: "indent"
+    };
+    return external;
+  });
+
+  CodeMirror.defineMIME("text/x-python", "python");
+
+  var words = function(str) { return str.split(" "); };
+
+  CodeMirror.defineMIME("text/x-cython", {
+    name: "python",
+    extra_keywords: words("by cdef cimport cpdef ctypedef enum except"+
+                          "extern gil include nogil property public"+
+                          "readonly struct union DEF IF ELIF ELSE")
+  });
+
+});
diff --git a/public/codemirror/mode/python/test.js b/public/codemirror/mode/python/test.js
new file mode 100644
index 000000000..c1a9c6a99
--- /dev/null
+++ b/public/codemirror/mode/python/test.js
@@ -0,0 +1,30 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({indentUnit: 4},
+              {name: "python",
+               version: 3,
+               singleLineStringErrors: false});
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)); }
+
+  // Error, because "foobarhello" is neither a known type or property, but
+  // property was expected (after "and"), and it should be in parentheses.
+  MT("decoratorStartOfLine",
+     "[meta @dec]",
+     "[keyword def] [def function]():",
+     "    [keyword pass]");
+
+  MT("decoratorIndented",
+     "[keyword class] [def Foo]:",
+     "    [meta @dec]",
+     "    [keyword def] [def function]():",
+     "        [keyword pass]");
+
+  MT("matmulWithSpace:", "[variable a] [operator @] [variable b]");
+  MT("matmulWithoutSpace:", "[variable a][operator @][variable b]");
+  MT("matmulSpaceBefore:", "[variable a] [operator @][variable b]");
+
+  MT("fValidStringPrefix", "[string f'this is a {formatted} string']");
+  MT("uValidStringPrefix", "[string u'this is an unicode string']");
+})();
diff --git a/public/codemirror/mode/q/index.html b/public/codemirror/mode/q/index.html
new file mode 100644
index 000000000..72785ba3b
--- /dev/null
+++ b/public/codemirror/mode/q/index.html
@@ -0,0 +1,144 @@
+
+
+CodeMirror: Q mode
+
+
+
+
+
+
+
+
+
+
+

+
Q mode

+
+
+

+
+    
+
+    
MIME type defined: text/x-q.

+  

diff --git a/public/codemirror/mode/q/q.js b/public/codemirror/mode/q/q.js
new file mode 100644
index 000000000..a4af9383e
--- /dev/null
+++ b/public/codemirror/mode/q/q.js
@@ -0,0 +1,139 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("q",function(config){
+  var indentUnit=config.indentUnit,
+      curPunc,
+      keywords=buildRE(["abs","acos","aj","aj0","all","and","any","asc","asin","asof","atan","attr","avg","avgs","bin","by","ceiling","cols","cor","cos","count","cov","cross","csv","cut","delete","deltas","desc","dev","differ","distinct","div","do","each","ej","enlist","eval","except","exec","exit","exp","fby","fills","first","fkeys","flip","floor","from","get","getenv","group","gtime","hclose","hcount","hdel","hopen","hsym","iasc","idesc","if","ij","in","insert","inter","inv","key","keys","last","like","list","lj","load","log","lower","lsq","ltime","ltrim","mavg","max","maxs","mcount","md5","mdev","med","meta","min","mins","mmax","mmin","mmu","mod","msum","neg","next","not","null","or","over","parse","peach","pj","plist","prd","prds","prev","prior","rand","rank","ratios","raze","read0","read1","reciprocal","reverse","rload","rotate","rsave","rtrim","save","scan","select","set","setenv","show","signum","sin","sqrt","ss","ssr","string","sublist","sum","sums","sv","system","tables","tan","til","trim","txf","type","uj","ungroup","union","update","upper","upsert","value","var","view","views","vs","wavg","where","where","while","within","wj","wj1","wsum","xasc","xbar","xcol","xcols","xdesc","xexp","xgroup","xkey","xlog","xprev","xrank"]),
+      E=/[|/&^!+:\\\-*%$=~#;@><,?_\'\"\[\(\]\)\s{}]/;
+  function buildRE(w){return new RegExp("^("+w.join("|")+")$");}
+  function tokenBase(stream,state){
+    var sol=stream.sol(),c=stream.next();
+    curPunc=null;
+    if(sol)
+      if(c=="/")
+        return(state.tokenize=tokenLineComment)(stream,state);
+      else if(c=="\\"){
+        if(stream.eol()||/\s/.test(stream.peek()))
+          return stream.skipToEnd(),/^\\\s*$/.test(stream.current())?(state.tokenize=tokenCommentToEOF)(stream, state):state.tokenize=tokenBase,"comment";
+        else
+          return state.tokenize=tokenBase,"builtin";
+      }
+    if(/\s/.test(c))
+      return stream.peek()=="/"?(stream.skipToEnd(),"comment"):"whitespace";
+    if(c=='"')
+      return(state.tokenize=tokenString)(stream,state);
+    if(c=='`')
+      return stream.eatWhile(/[A-Z|a-z|\d|_|:|\/|\.]/),"symbol";
+    if(("."==c&&/\d/.test(stream.peek()))||/\d/.test(c)){
+      var t=null;
+      stream.backUp(1);
+      if(stream.match(/^\d{4}\.\d{2}(m|\.\d{2}([D|T](\d{2}(:\d{2}(:\d{2}(\.\d{1,9})?)?)?)?)?)/)
+      || stream.match(/^\d+D(\d{2}(:\d{2}(:\d{2}(\.\d{1,9})?)?)?)/)
+      || stream.match(/^\d{2}:\d{2}(:\d{2}(\.\d{1,9})?)?/)
+      || stream.match(/^\d+[ptuv]{1}/))
+        t="temporal";
+      else if(stream.match(/^0[NwW]{1}/)
+      || stream.match(/^0x[\d|a-f|A-F]*/)
+      || stream.match(/^[0|1]+[b]{1}/)
+      || stream.match(/^\d+[chijn]{1}/)
+      || stream.match(/-?\d*(\.\d*)?(e[+\-]?\d+)?(e|f)?/))
+        t="number";
+      return(t&&(!(c=stream.peek())||E.test(c)))?t:(stream.next(),"error");
+    }
+    if(/[A-Z|a-z]|\./.test(c))
+      return stream.eatWhile(/[A-Z|a-z|\.|_|\d]/),keywords.test(stream.current())?"keyword":"variable";
+    if(/[|/&^!+:\\\-*%$=~#;@><\.,?_\']/.test(c))
+      return null;
+    if(/[{}\(\[\]\)]/.test(c))
+      return null;
+    return"error";
+  }
+  function tokenLineComment(stream,state){
+    return stream.skipToEnd(),/\/\s*$/.test(stream.current())?(state.tokenize=tokenBlockComment)(stream,state):(state.tokenize=tokenBase),"comment";
+  }
+  function tokenBlockComment(stream,state){
+    var f=stream.sol()&&stream.peek()=="\\";
+    stream.skipToEnd();
+    if(f&&/^\\\s*$/.test(stream.current()))
+      state.tokenize=tokenBase;
+    return"comment";
+  }
+  function tokenCommentToEOF(stream){return stream.skipToEnd(),"comment";}
+  function tokenString(stream,state){
+    var escaped=false,next,end=false;
+    while((next=stream.next())){
+      if(next=="\""&&!escaped){end=true;break;}
+      escaped=!escaped&&next=="\\";
+    }
+    if(end)state.tokenize=tokenBase;
+    return"string";
+  }
+  function pushContext(state,type,col){state.context={prev:state.context,indent:state.indent,col:col,type:type};}
+  function popContext(state){state.indent=state.context.indent;state.context=state.context.prev;}
+  return{
+    startState:function(){
+      return{tokenize:tokenBase,
+             context:null,
+             indent:0,
+             col:0};
+    },
+    token:function(stream,state){
+      if(stream.sol()){
+        if(state.context&&state.context.align==null)
+          state.context.align=false;
+        state.indent=stream.indentation();
+      }
+      //if (stream.eatSpace()) return null;
+      var style=state.tokenize(stream,state);
+      if(style!="comment"&&state.context&&state.context.align==null&&state.context.type!="pattern"){
+        state.context.align=true;
+      }
+      if(curPunc=="(")pushContext(state,")",stream.column());
+      else if(curPunc=="[")pushContext(state,"]",stream.column());
+      else if(curPunc=="{")pushContext(state,"}",stream.column());
+      else if(/[\]\}\)]/.test(curPunc)){
+        while(state.context&&state.context.type=="pattern")popContext(state);
+        if(state.context&&curPunc==state.context.type)popContext(state);
+      }
+      else if(curPunc=="."&&state.context&&state.context.type=="pattern")popContext(state);
+      else if(/atom|string|variable/.test(style)&&state.context){
+        if(/[\}\]]/.test(state.context.type))
+          pushContext(state,"pattern",stream.column());
+        else if(state.context.type=="pattern"&&!state.context.align){
+          state.context.align=true;
+          state.context.col=stream.column();
+        }
+      }
+      return style;
+    },
+    indent:function(state,textAfter){
+      var firstChar=textAfter&&textAfter.charAt(0);
+      var context=state.context;
+      if(/[\]\}]/.test(firstChar))
+        while (context&&context.type=="pattern")context=context.prev;
+      var closing=context&&firstChar==context.type;
+      if(!context)
+        return 0;
+      else if(context.type=="pattern")
+        return context.col;
+      else if(context.align)
+        return context.col+(closing?0:1);
+      else
+        return context.indent+(closing?0:indentUnit);
+    }
+  };
+});
+CodeMirror.defineMIME("text/x-q","q");
+
+});
diff --git a/public/codemirror/mode/r/index.html b/public/codemirror/mode/r/index.html
new file mode 100644
index 000000000..01b6e664b
--- /dev/null
+++ b/public/codemirror/mode/r/index.html
@@ -0,0 +1,88 @@
+
+
+CodeMirror: R mode
+
+
+
+
+
+
+
+
+
+

+
R mode

+

+    
+
+    
MIME types defined: text/x-rsrc.

+
+    
Development of the CodeMirror R mode was kindly sponsored
+    by Ubalo.

+
+  

diff --git a/public/codemirror/mode/r/r.js b/public/codemirror/mode/r/r.js
new file mode 100644
index 000000000..be7db46b8
--- /dev/null
+++ b/public/codemirror/mode/r/r.js
@@ -0,0 +1,183 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.registerHelper("wordChars", "r", /[\w.]/);
+
+CodeMirror.defineMode("r", function(config) {
+  function wordObj(str) {
+    var words = str.split(" "), res = {};
+    for (var i = 0; i < words.length; ++i) res[words[i]] = true;
+    return res;
+  }
+  var atoms = wordObj("NULL NA Inf NaN NA_integer_ NA_real_ NA_complex_ NA_character_");
+  var builtins = wordObj("list quote bquote eval return call parse deparse");
+  var keywords = wordObj("if else repeat while function for in next break");
+  var blockkeywords = wordObj("if else repeat while function for");
+  var opChars = /[+\-*\/^<>=!&|~$:]/;
+  var curPunc;
+
+  function tokenBase(stream, state) {
+    curPunc = null;
+    var ch = stream.next();
+    if (ch == "#") {
+      stream.skipToEnd();
+      return "comment";
+    } else if (ch == "0" && stream.eat("x")) {
+      stream.eatWhile(/[\da-f]/i);
+      return "number";
+    } else if (ch == "." && stream.eat(/\d/)) {
+      stream.match(/\d*(?:e[+\-]?\d+)?/);
+      return "number";
+    } else if (/\d/.test(ch)) {
+      stream.match(/\d*(?:\.\d+)?(?:e[+\-]\d+)?L?/);
+      return "number";
+    } else if (ch == "'" || ch == '"') {
+      state.tokenize = tokenString(ch);
+      return "string";
+    } else if (ch == "`") {
+      stream.match(/[^`]+`/);
+      return "variable-3";
+    } else if (ch == "." && stream.match(/.[.\d]+/)) {
+      return "keyword";
+    } else if (/[\w\.]/.test(ch) && ch != "_") {
+      stream.eatWhile(/[\w\.]/);
+      var word = stream.current();
+      if (atoms.propertyIsEnumerable(word)) return "atom";
+      if (keywords.propertyIsEnumerable(word)) {
+        // Block keywords start new blocks, except 'else if', which only starts
+        // one new block for the 'if', no block for the 'else'.
+        if (blockkeywords.propertyIsEnumerable(word) &&
+            !stream.match(/\s*if(\s+|$)/, false))
+          curPunc = "block";
+        return "keyword";
+      }
+      if (builtins.propertyIsEnumerable(word)) return "builtin";
+      return "variable";
+    } else if (ch == "%") {
+      if (stream.skipTo("%")) stream.next();
+      return "operator variable-2";
+    } else if (
+        (ch == "<" && stream.eat("-")) ||
+        (ch == "<" && stream.match("<-")) ||
+        (ch == "-" && stream.match(/>>?/))
+      ) {
+      return "operator arrow";
+    } else if (ch == "=" && state.ctx.argList) {
+      return "arg-is";
+    } else if (opChars.test(ch)) {
+      if (ch == "$") return "operator dollar";
+      stream.eatWhile(opChars);
+      return "operator";
+    } else if (/[\(\){}\[\];]/.test(ch)) {
+      curPunc = ch;
+      if (ch == ";") return "semi";
+      return null;
+    } else {
+      return null;
+    }
+  }
+
+  function tokenString(quote) {
+    return function(stream, state) {
+      if (stream.eat("\\")) {
+        var ch = stream.next();
+        if (ch == "x") stream.match(/^[a-f0-9]{2}/i);
+        else if ((ch == "u" || ch == "U") && stream.eat("{") && stream.skipTo("}")) stream.next();
+        else if (ch == "u") stream.match(/^[a-f0-9]{4}/i);
+        else if (ch == "U") stream.match(/^[a-f0-9]{8}/i);
+        else if (/[0-7]/.test(ch)) stream.match(/^[0-7]{1,2}/);
+        return "string-2";
+      } else {
+        var next;
+        while ((next = stream.next()) != null) {
+          if (next == quote) { state.tokenize = tokenBase; break; }
+          if (next == "\\") { stream.backUp(1); break; }
+        }
+        return "string";
+      }
+    };
+  }
+
+  var ALIGN_YES = 1, ALIGN_NO = 2, BRACELESS = 4
+
+  function push(state, type, stream) {
+    state.ctx = {type: type,
+                 indent: state.indent,
+                 flags: 0,
+                 column: stream.column(),
+                 prev: state.ctx};
+  }
+  function setFlag(state, flag) {
+    var ctx = state.ctx
+    state.ctx = {type: ctx.type,
+                 indent: ctx.indent,
+                 flags: ctx.flags | flag,
+                 column: ctx.column,
+                 prev: ctx.prev}
+  }
+  function pop(state) {
+    state.indent = state.ctx.indent;
+    state.ctx = state.ctx.prev;
+  }
+
+  return {
+    startState: function() {
+      return {tokenize: tokenBase,
+              ctx: {type: "top",
+                    indent: -config.indentUnit,
+                    flags: ALIGN_NO},
+              indent: 0,
+              afterIdent: false};
+    },
+
+    token: function(stream, state) {
+      if (stream.sol()) {
+        if ((state.ctx.flags & 3) == 0) state.ctx.flags |= ALIGN_NO
+        if (state.ctx.flags & BRACELESS) pop(state)
+        state.indent = stream.indentation();
+      }
+      if (stream.eatSpace()) return null;
+      var style = state.tokenize(stream, state);
+      if (style != "comment" && (state.ctx.flags & ALIGN_NO) == 0) setFlag(state, ALIGN_YES)
+
+      if ((curPunc == ";" || curPunc == "{" || curPunc == "}") && state.ctx.type == "block") pop(state);
+      if (curPunc == "{") push(state, "}", stream);
+      else if (curPunc == "(") {
+        push(state, ")", stream);
+        if (state.afterIdent) state.ctx.argList = true;
+      }
+      else if (curPunc == "[") push(state, "]", stream);
+      else if (curPunc == "block") push(state, "block", stream);
+      else if (curPunc == state.ctx.type) pop(state);
+      else if (state.ctx.type == "block" && style != "comment") setFlag(state, BRACELESS)
+      state.afterIdent = style == "variable" || style == "keyword";
+      return style;
+    },
+
+    indent: function(state, textAfter) {
+      if (state.tokenize != tokenBase) return 0;
+      var firstChar = textAfter && textAfter.charAt(0), ctx = state.ctx,
+          closing = firstChar == ctx.type;
+      if (ctx.flags & BRACELESS) ctx = ctx.prev
+      if (ctx.type == "block") return ctx.indent + (firstChar == "{" ? 0 : config.indentUnit);
+      else if (ctx.flags & ALIGN_YES) return ctx.column + (closing ? 0 : 1);
+      else return ctx.indent + (closing ? 0 : config.indentUnit);
+    },
+
+    lineComment: "#"
+  };
+});
+
+CodeMirror.defineMIME("text/x-rsrc", "r");
+
+});
diff --git a/public/codemirror/mode/rpm/changes/index.html b/public/codemirror/mode/rpm/changes/index.html
new file mode 100644
index 000000000..6e5031bd1
--- /dev/null
+++ b/public/codemirror/mode/rpm/changes/index.html
@@ -0,0 +1,66 @@
+
+
+CodeMirror: RPM changes mode
+
+
+
+    
+    
+    
+    
+    
+
+
+
+

+
RPM changes mode

+
+    

+    
+
+    
MIME types defined: text/x-rpm-changes.

+

diff --git a/public/codemirror/mode/rpm/index.html b/public/codemirror/mode/rpm/index.html
new file mode 100644
index 000000000..9a34e6dfb
--- /dev/null
+++ b/public/codemirror/mode/rpm/index.html
@@ -0,0 +1,149 @@
+
+
+CodeMirror: RPM changes mode
+
+
+
+    
+    
+    
+    
+    
+
+
+
+

+
RPM changes mode

+
+    

+    
+
+
RPM spec mode

+    
+    

+    
+
+    
MIME types defined: text/x-rpm-spec, text/x-rpm-changes.

+

diff --git a/public/codemirror/mode/rpm/rpm.js b/public/codemirror/mode/rpm/rpm.js
new file mode 100644
index 000000000..87cde591a
--- /dev/null
+++ b/public/codemirror/mode/rpm/rpm.js
@@ -0,0 +1,109 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("rpm-changes", function() {
+  var headerSeperator = /^-+$/;
+  var headerLine = /^(Mon|Tue|Wed|Thu|Fri|Sat|Sun) (Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)  ?\d{1,2} \d{2}:\d{2}(:\d{2})? [A-Z]{3,4} \d{4} - /;
+  var simpleEmail = /^[\w+.-]+@[\w.-]+/;
+
+  return {
+    token: function(stream) {
+      if (stream.sol()) {
+        if (stream.match(headerSeperator)) { return 'tag'; }
+        if (stream.match(headerLine)) { return 'tag'; }
+      }
+      if (stream.match(simpleEmail)) { return 'string'; }
+      stream.next();
+      return null;
+    }
+  };
+});
+
+CodeMirror.defineMIME("text/x-rpm-changes", "rpm-changes");
+
+// Quick and dirty spec file highlighting
+
+CodeMirror.defineMode("rpm-spec", function() {
+  var arch = /^(i386|i586|i686|x86_64|ppc64le|ppc64|ppc|ia64|s390x|s390|sparc64|sparcv9|sparc|noarch|alphaev6|alpha|hppa|mipsel)/;
+
+  var preamble = /^[a-zA-Z0-9()]+:/;
+  var section = /^%(debug_package|package|description|prep|build|install|files|clean|changelog|preinstall|preun|postinstall|postun|pretrans|posttrans|pre|post|triggerin|triggerun|verifyscript|check|triggerpostun|triggerprein|trigger)/;
+  var control_flow_complex = /^%(ifnarch|ifarch|if)/; // rpm control flow macros
+  var control_flow_simple = /^%(else|endif)/; // rpm control flow macros
+  var operators = /^(\!|\?|\<\=|\<|\>\=|\>|\=\=|\&\&|\|\|)/; // operators in control flow macros
+
+  return {
+    startState: function () {
+        return {
+          controlFlow: false,
+          macroParameters: false,
+          section: false
+        };
+    },
+    token: function (stream, state) {
+      var ch = stream.peek();
+      if (ch == "#") { stream.skipToEnd(); return "comment"; }
+
+      if (stream.sol()) {
+        if (stream.match(preamble)) { return "header"; }
+        if (stream.match(section)) { return "atom"; }
+      }
+
+      if (stream.match(/^\$\w+/)) { return "def"; } // Variables like '$RPM_BUILD_ROOT'
+      if (stream.match(/^\$\{\w+\}/)) { return "def"; } // Variables like '${RPM_BUILD_ROOT}'
+
+      if (stream.match(control_flow_simple)) { return "keyword"; }
+      if (stream.match(control_flow_complex)) {
+        state.controlFlow = true;
+        return "keyword";
+      }
+      if (state.controlFlow) {
+        if (stream.match(operators)) { return "operator"; }
+        if (stream.match(/^(\d+)/)) { return "number"; }
+        if (stream.eol()) { state.controlFlow = false; }
+      }
+
+      if (stream.match(arch)) {
+        if (stream.eol()) { state.controlFlow = false; }
+        return "number";
+      }
+
+      // Macros like '%make_install' or '%attr(0775,root,root)'
+      if (stream.match(/^%[\w]+/)) {
+        if (stream.match(/^\(/)) { state.macroParameters = true; }
+        return "keyword";
+      }
+      if (state.macroParameters) {
+        if (stream.match(/^\d+/)) { return "number";}
+        if (stream.match(/^\)/)) {
+          state.macroParameters = false;
+          return "keyword";
+        }
+      }
+
+      // Macros like '%{defined fedora}'
+      if (stream.match(/^%\{\??[\w \-\:\!]+\}/)) {
+        if (stream.eol()) { state.controlFlow = false; }
+        return "def";
+      }
+
+      //TODO: Include bash script sub-parser (CodeMirror supports that)
+      stream.next();
+      return null;
+    }
+  };
+});
+
+CodeMirror.defineMIME("text/x-rpm-spec", "rpm-spec");
+
+});
diff --git a/public/codemirror/mode/rst/index.html b/public/codemirror/mode/rst/index.html
new file mode 100644
index 000000000..2902dea23
--- /dev/null
+++ b/public/codemirror/mode/rst/index.html
@@ -0,0 +1,535 @@
+
+
+CodeMirror: reStructuredText mode
+
+
+
+
+
+
+
+
+
+
+

+
reStructuredText mode

+

+
+    
+    

+        The python mode will be used for highlighting blocks
+        containing Python/IPython terminal sessions: blocks starting with
+        >>> (for Python) or In [num]: (for
+        IPython).
+
+        Further, the stex mode will be used for highlighting
+        blocks containing LaTex code.
+    

+
+    
MIME types defined: text/x-rst.

+  

diff --git a/public/codemirror/mode/rst/rst.js b/public/codemirror/mode/rst/rst.js
new file mode 100644
index 000000000..bcf110c1a
--- /dev/null
+++ b/public/codemirror/mode/rst/rst.js
@@ -0,0 +1,557 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../python/python"), require("../stex/stex"), require("../../addon/mode/overlay"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../python/python", "../stex/stex", "../../addon/mode/overlay"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode('rst', function (config, options) {
+
+  var rx_strong = /^\*\*[^\*\s](?:[^\*]*[^\*\s])?\*\*/;
+  var rx_emphasis = /^\*[^\*\s](?:[^\*]*[^\*\s])?\*/;
+  var rx_literal = /^``[^`\s](?:[^`]*[^`\s])``/;
+
+  var rx_number = /^(?:[\d]+(?:[\.,]\d+)*)/;
+  var rx_positive = /^(?:\s\+[\d]+(?:[\.,]\d+)*)/;
+  var rx_negative = /^(?:\s\-[\d]+(?:[\.,]\d+)*)/;
+
+  var rx_uri_protocol = "[Hh][Tt][Tt][Pp][Ss]?://";
+  var rx_uri_domain = "(?:[\\d\\w.-]+)\\.(?:\\w{2,6})";
+  var rx_uri_path = "(?:/[\\d\\w\\#\\%\\&\\-\\.\\,\\/\\:\\=\\?\\~]+)*";
+  var rx_uri = new RegExp("^" + rx_uri_protocol + rx_uri_domain + rx_uri_path);
+
+  var overlay = {
+    token: function (stream) {
+
+      if (stream.match(rx_strong) && stream.match (/\W+|$/, false))
+        return 'strong';
+      if (stream.match(rx_emphasis) && stream.match (/\W+|$/, false))
+        return 'em';
+      if (stream.match(rx_literal) && stream.match (/\W+|$/, false))
+        return 'string-2';
+      if (stream.match(rx_number))
+        return 'number';
+      if (stream.match(rx_positive))
+        return 'positive';
+      if (stream.match(rx_negative))
+        return 'negative';
+      if (stream.match(rx_uri))
+        return 'link';
+
+      while (stream.next() != null) {
+        if (stream.match(rx_strong, false)) break;
+        if (stream.match(rx_emphasis, false)) break;
+        if (stream.match(rx_literal, false)) break;
+        if (stream.match(rx_number, false)) break;
+        if (stream.match(rx_positive, false)) break;
+        if (stream.match(rx_negative, false)) break;
+        if (stream.match(rx_uri, false)) break;
+      }
+
+      return null;
+    }
+  };
+
+  var mode = CodeMirror.getMode(
+    config, options.backdrop || 'rst-base'
+  );
+
+  return CodeMirror.overlayMode(mode, overlay, true); // combine
+}, 'python', 'stex');
+
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+
+CodeMirror.defineMode('rst-base', function (config) {
+
+  ///////////////////////////////////////////////////////////////////////////
+  ///////////////////////////////////////////////////////////////////////////
+
+  function format(string) {
+    var args = Array.prototype.slice.call(arguments, 1);
+    return string.replace(/{(\d+)}/g, function (match, n) {
+      return typeof args[n] != 'undefined' ? args[n] : match;
+    });
+  }
+
+  ///////////////////////////////////////////////////////////////////////////
+  ///////////////////////////////////////////////////////////////////////////
+
+  var mode_python = CodeMirror.getMode(config, 'python');
+  var mode_stex = CodeMirror.getMode(config, 'stex');
+
+  ///////////////////////////////////////////////////////////////////////////
+  ///////////////////////////////////////////////////////////////////////////
+
+  var SEPA = "\\s+";
+  var TAIL = "(?:\\s*|\\W|$)",
+  rx_TAIL = new RegExp(format('^{0}', TAIL));
+
+  var NAME =
+    "(?:[^\\W\\d_](?:[\\w!\"#$%&'()\\*\\+,\\-\\.\/:;<=>\\?]*[^\\W_])?)",
+  rx_NAME = new RegExp(format('^{0}', NAME));
+  var NAME_WWS =
+    "(?:[^\\W\\d_](?:[\\w\\s!\"#$%&'()\\*\\+,\\-\\.\/:;<=>\\?]*[^\\W_])?)";
+  var REF_NAME = format('(?:{0}|`{1}`)', NAME, NAME_WWS);
+
+  var TEXT1 = "(?:[^\\s\\|](?:[^\\|]*[^\\s\\|])?)";
+  var TEXT2 = "(?:[^\\`]+)",
+  rx_TEXT2 = new RegExp(format('^{0}', TEXT2));
+
+  var rx_section = new RegExp(
+    "^([!'#$%&\"()*+,-./:;<=>?@\\[\\\\\\]^_`{|}~])\\1{3,}\\s*$");
+  var rx_explicit = new RegExp(
+    format('^\\.\\.{0}', SEPA));
+  var rx_link = new RegExp(
+    format('^_{0}:{1}|^__:{1}', REF_NAME, TAIL));
+  var rx_directive = new RegExp(
+    format('^{0}::{1}', REF_NAME, TAIL));
+  var rx_substitution = new RegExp(
+    format('^\\|{0}\\|{1}{2}::{3}', TEXT1, SEPA, REF_NAME, TAIL));
+  var rx_footnote = new RegExp(
+    format('^\\[(?:\\d+|#{0}?|\\*)]{1}', REF_NAME, TAIL));
+  var rx_citation = new RegExp(
+    format('^\\[{0}\\]{1}', REF_NAME, TAIL));
+
+  var rx_substitution_ref = new RegExp(
+    format('^\\|{0}\\|', TEXT1));
+  var rx_footnote_ref = new RegExp(
+    format('^\\[(?:\\d+|#{0}?|\\*)]_', REF_NAME));
+  var rx_citation_ref = new RegExp(
+    format('^\\[{0}\\]_', REF_NAME));
+  var rx_link_ref1 = new RegExp(
+    format('^{0}__?', REF_NAME));
+  var rx_link_ref2 = new RegExp(
+    format('^`{0}`_', TEXT2));
+
+  var rx_role_pre = new RegExp(
+    format('^:{0}:`{1}`{2}', NAME, TEXT2, TAIL));
+  var rx_role_suf = new RegExp(
+    format('^`{1}`:{0}:{2}', NAME, TEXT2, TAIL));
+  var rx_role = new RegExp(
+    format('^:{0}:{1}', NAME, TAIL));
+
+  var rx_directive_name = new RegExp(format('^{0}', REF_NAME));
+  var rx_directive_tail = new RegExp(format('^::{0}', TAIL));
+  var rx_substitution_text = new RegExp(format('^\\|{0}\\|', TEXT1));
+  var rx_substitution_sepa = new RegExp(format('^{0}', SEPA));
+  var rx_substitution_name = new RegExp(format('^{0}', REF_NAME));
+  var rx_substitution_tail = new RegExp(format('^::{0}', TAIL));
+  var rx_link_head = new RegExp("^_");
+  var rx_link_name = new RegExp(format('^{0}|_', REF_NAME));
+  var rx_link_tail = new RegExp(format('^:{0}', TAIL));
+
+  var rx_verbatim = new RegExp('^::\\s*$');
+  var rx_examples = new RegExp('^\\s+(?:>>>|In \\[\\d+\\]:)\\s');
+
+  ///////////////////////////////////////////////////////////////////////////
+  ///////////////////////////////////////////////////////////////////////////
+
+  function to_normal(stream, state) {
+    var token = null;
+
+    if (stream.sol() && stream.match(rx_examples, false)) {
+      change(state, to_mode, {
+        mode: mode_python, local: CodeMirror.startState(mode_python)
+      });
+    } else if (stream.sol() && stream.match(rx_explicit)) {
+      change(state, to_explicit);
+      token = 'meta';
+    } else if (stream.sol() && stream.match(rx_section)) {
+      change(state, to_normal);
+      token = 'header';
+    } else if (phase(state) == rx_role_pre ||
+               stream.match(rx_role_pre, false)) {
+
+      switch (stage(state)) {
+      case 0:
+        change(state, to_normal, context(rx_role_pre, 1));
+        stream.match(/^:/);
+        token = 'meta';
+        break;
+      case 1:
+        change(state, to_normal, context(rx_role_pre, 2));
+        stream.match(rx_NAME);
+        token = 'keyword';
+
+        if (stream.current().match(/^(?:math|latex)/)) {
+          state.tmp_stex = true;
+        }
+        break;
+      case 2:
+        change(state, to_normal, context(rx_role_pre, 3));
+        stream.match(/^:`/);
+        token = 'meta';
+        break;
+      case 3:
+        if (state.tmp_stex) {
+          state.tmp_stex = undefined; state.tmp = {
+            mode: mode_stex, local: CodeMirror.startState(mode_stex)
+          };
+        }
+
+        if (state.tmp) {
+          if (stream.peek() == '`') {
+            change(state, to_normal, context(rx_role_pre, 4));
+            state.tmp = undefined;
+            break;
+          }
+
+          token = state.tmp.mode.token(stream, state.tmp.local);
+          break;
+        }
+
+        change(state, to_normal, context(rx_role_pre, 4));
+        stream.match(rx_TEXT2);
+        token = 'string';
+        break;
+      case 4:
+        change(state, to_normal, context(rx_role_pre, 5));
+        stream.match(/^`/);
+        token = 'meta';
+        break;
+      case 5:
+        change(state, to_normal, context(rx_role_pre, 6));
+        stream.match(rx_TAIL);
+        break;
+      default:
+        change(state, to_normal);
+      }
+    } else if (phase(state) == rx_role_suf ||
+               stream.match(rx_role_suf, false)) {
+
+      switch (stage(state)) {
+      case 0:
+        change(state, to_normal, context(rx_role_suf, 1));
+        stream.match(/^`/);
+        token = 'meta';
+        break;
+      case 1:
+        change(state, to_normal, context(rx_role_suf, 2));
+        stream.match(rx_TEXT2);
+        token = 'string';
+        break;
+      case 2:
+        change(state, to_normal, context(rx_role_suf, 3));
+        stream.match(/^`:/);
+        token = 'meta';
+        break;
+      case 3:
+        change(state, to_normal, context(rx_role_suf, 4));
+        stream.match(rx_NAME);
+        token = 'keyword';
+        break;
+      case 4:
+        change(state, to_normal, context(rx_role_suf, 5));
+        stream.match(/^:/);
+        token = 'meta';
+        break;
+      case 5:
+        change(state, to_normal, context(rx_role_suf, 6));
+        stream.match(rx_TAIL);
+        break;
+      default:
+        change(state, to_normal);
+      }
+    } else if (phase(state) == rx_role || stream.match(rx_role, false)) {
+
+      switch (stage(state)) {
+      case 0:
+        change(state, to_normal, context(rx_role, 1));
+        stream.match(/^:/);
+        token = 'meta';
+        break;
+      case 1:
+        change(state, to_normal, context(rx_role, 2));
+        stream.match(rx_NAME);
+        token = 'keyword';
+        break;
+      case 2:
+        change(state, to_normal, context(rx_role, 3));
+        stream.match(/^:/);
+        token = 'meta';
+        break;
+      case 3:
+        change(state, to_normal, context(rx_role, 4));
+        stream.match(rx_TAIL);
+        break;
+      default:
+        change(state, to_normal);
+      }
+    } else if (phase(state) == rx_substitution_ref ||
+               stream.match(rx_substitution_ref, false)) {
+
+      switch (stage(state)) {
+      case 0:
+        change(state, to_normal, context(rx_substitution_ref, 1));
+        stream.match(rx_substitution_text);
+        token = 'variable-2';
+        break;
+      case 1:
+        change(state, to_normal, context(rx_substitution_ref, 2));
+        if (stream.match(/^_?_?/)) token = 'link';
+        break;
+      default:
+        change(state, to_normal);
+      }
+    } else if (stream.match(rx_footnote_ref)) {
+      change(state, to_normal);
+      token = 'quote';
+    } else if (stream.match(rx_citation_ref)) {
+      change(state, to_normal);
+      token = 'quote';
+    } else if (stream.match(rx_link_ref1)) {
+      change(state, to_normal);
+      if (!stream.peek() || stream.peek().match(/^\W$/)) {
+        token = 'link';
+      }
+    } else if (phase(state) == rx_link_ref2 ||
+               stream.match(rx_link_ref2, false)) {
+
+      switch (stage(state)) {
+      case 0:
+        if (!stream.peek() || stream.peek().match(/^\W$/)) {
+          change(state, to_normal, context(rx_link_ref2, 1));
+        } else {
+          stream.match(rx_link_ref2);
+        }
+        break;
+      case 1:
+        change(state, to_normal, context(rx_link_ref2, 2));
+        stream.match(/^`/);
+        token = 'link';
+        break;
+      case 2:
+        change(state, to_normal, context(rx_link_ref2, 3));
+        stream.match(rx_TEXT2);
+        break;
+      case 3:
+        change(state, to_normal, context(rx_link_ref2, 4));
+        stream.match(/^`_/);
+        token = 'link';
+        break;
+      default:
+        change(state, to_normal);
+      }
+    } else if (stream.match(rx_verbatim)) {
+      change(state, to_verbatim);
+    }
+
+    else {
+      if (stream.next()) change(state, to_normal);
+    }
+
+    return token;
+  }
+
+  ///////////////////////////////////////////////////////////////////////////
+  ///////////////////////////////////////////////////////////////////////////
+
+  function to_explicit(stream, state) {
+    var token = null;
+
+    if (phase(state) == rx_substitution ||
+        stream.match(rx_substitution, false)) {
+
+      switch (stage(state)) {
+      case 0:
+        change(state, to_explicit, context(rx_substitution, 1));
+        stream.match(rx_substitution_text);
+        token = 'variable-2';
+        break;
+      case 1:
+        change(state, to_explicit, context(rx_substitution, 2));
+        stream.match(rx_substitution_sepa);
+        break;
+      case 2:
+        change(state, to_explicit, context(rx_substitution, 3));
+        stream.match(rx_substitution_name);
+        token = 'keyword';
+        break;
+      case 3:
+        change(state, to_explicit, context(rx_substitution, 4));
+        stream.match(rx_substitution_tail);
+        token = 'meta';
+        break;
+      default:
+        change(state, to_normal);
+      }
+    } else if (phase(state) == rx_directive ||
+               stream.match(rx_directive, false)) {
+
+      switch (stage(state)) {
+      case 0:
+        change(state, to_explicit, context(rx_directive, 1));
+        stream.match(rx_directive_name);
+        token = 'keyword';
+
+        if (stream.current().match(/^(?:math|latex)/))
+          state.tmp_stex = true;
+        else if (stream.current().match(/^python/))
+          state.tmp_py = true;
+        break;
+      case 1:
+        change(state, to_explicit, context(rx_directive, 2));
+        stream.match(rx_directive_tail);
+        token = 'meta';
+
+        if (stream.match(/^latex\s*$/) || state.tmp_stex) {
+          state.tmp_stex = undefined; change(state, to_mode, {
+            mode: mode_stex, local: CodeMirror.startState(mode_stex)
+          });
+        }
+        break;
+      case 2:
+        change(state, to_explicit, context(rx_directive, 3));
+        if (stream.match(/^python\s*$/) || state.tmp_py) {
+          state.tmp_py = undefined; change(state, to_mode, {
+            mode: mode_python, local: CodeMirror.startState(mode_python)
+          });
+        }
+        break;
+      default:
+        change(state, to_normal);
+      }
+    } else if (phase(state) == rx_link || stream.match(rx_link, false)) {
+
+      switch (stage(state)) {
+      case 0:
+        change(state, to_explicit, context(rx_link, 1));
+        stream.match(rx_link_head);
+        stream.match(rx_link_name);
+        token = 'link';
+        break;
+      case 1:
+        change(state, to_explicit, context(rx_link, 2));
+        stream.match(rx_link_tail);
+        token = 'meta';
+        break;
+      default:
+        change(state, to_normal);
+      }
+    } else if (stream.match(rx_footnote)) {
+      change(state, to_normal);
+      token = 'quote';
+    } else if (stream.match(rx_citation)) {
+      change(state, to_normal);
+      token = 'quote';
+    }
+
+    else {
+      stream.eatSpace();
+      if (stream.eol()) {
+        change(state, to_normal);
+      } else {
+        stream.skipToEnd();
+        change(state, to_comment);
+        token = 'comment';
+      }
+    }
+
+    return token;
+  }
+
+  ///////////////////////////////////////////////////////////////////////////
+  ///////////////////////////////////////////////////////////////////////////
+
+  function to_comment(stream, state) {
+    return as_block(stream, state, 'comment');
+  }
+
+  function to_verbatim(stream, state) {
+    return as_block(stream, state, 'meta');
+  }
+
+  function as_block(stream, state, token) {
+    if (stream.eol() || stream.eatSpace()) {
+      stream.skipToEnd();
+      return token;
+    } else {
+      change(state, to_normal);
+      return null;
+    }
+  }
+
+  ///////////////////////////////////////////////////////////////////////////
+  ///////////////////////////////////////////////////////////////////////////
+
+  function to_mode(stream, state) {
+
+    if (state.ctx.mode && state.ctx.local) {
+
+      if (stream.sol()) {
+        if (!stream.eatSpace()) change(state, to_normal);
+        return null;
+      }
+
+      return state.ctx.mode.token(stream, state.ctx.local);
+    }
+
+    change(state, to_normal);
+    return null;
+  }
+
+  ///////////////////////////////////////////////////////////////////////////
+  ///////////////////////////////////////////////////////////////////////////
+
+  function context(phase, stage, mode, local) {
+    return {phase: phase, stage: stage, mode: mode, local: local};
+  }
+
+  function change(state, tok, ctx) {
+    state.tok = tok;
+    state.ctx = ctx || {};
+  }
+
+  function stage(state) {
+    return state.ctx.stage || 0;
+  }
+
+  function phase(state) {
+    return state.ctx.phase;
+  }
+
+  ///////////////////////////////////////////////////////////////////////////
+  ///////////////////////////////////////////////////////////////////////////
+
+  return {
+    startState: function () {
+      return {tok: to_normal, ctx: context(undefined, 0)};
+    },
+
+    copyState: function (state) {
+      var ctx = state.ctx, tmp = state.tmp;
+      if (ctx.local)
+        ctx = {mode: ctx.mode, local: CodeMirror.copyState(ctx.mode, ctx.local)};
+      if (tmp)
+        tmp = {mode: tmp.mode, local: CodeMirror.copyState(tmp.mode, tmp.local)};
+      return {tok: state.tok, ctx: ctx, tmp: tmp};
+    },
+
+    innerMode: function (state) {
+      return state.tmp      ? {state: state.tmp.local, mode: state.tmp.mode}
+      : state.ctx.mode ? {state: state.ctx.local, mode: state.ctx.mode}
+      : null;
+    },
+
+    token: function (stream, state) {
+      return state.tok(stream, state);
+    }
+  };
+}, 'python', 'stex');
+
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+
+CodeMirror.defineMIME('text/x-rst', 'rst');
+
+///////////////////////////////////////////////////////////////////////////////
+///////////////////////////////////////////////////////////////////////////////
+
+});
diff --git a/public/codemirror/mode/ruby/index.html b/public/codemirror/mode/ruby/index.html
new file mode 100644
index 000000000..97544babc
--- /dev/null
+++ b/public/codemirror/mode/ruby/index.html
@@ -0,0 +1,183 @@
+
+
+CodeMirror: Ruby mode
+
+
+
+
+
+
+
+
+
+
+

+
Ruby mode

+

+    
+
+    
MIME types defined: text/x-ruby.

+
+    
Development of the CodeMirror Ruby mode was kindly sponsored
+    by Ubalo.

+
+  

diff --git a/public/codemirror/mode/ruby/ruby.js b/public/codemirror/mode/ruby/ruby.js
new file mode 100644
index 000000000..68ebf122b
--- /dev/null
+++ b/public/codemirror/mode/ruby/ruby.js
@@ -0,0 +1,295 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("ruby", function(config) {
+  function wordObj(words) {
+    var o = {};
+    for (var i = 0, e = words.length; i < e; ++i) o[words[i]] = true;
+    return o;
+  }
+  var keywords = wordObj([
+    "alias", "and", "BEGIN", "begin", "break", "case", "class", "def", "defined?", "do", "else",
+    "elsif", "END", "end", "ensure", "false", "for", "if", "in", "module", "next", "not", "or",
+    "redo", "rescue", "retry", "return", "self", "super", "then", "true", "undef", "unless",
+    "until", "when", "while", "yield", "nil", "raise", "throw", "catch", "fail", "loop", "callcc",
+    "caller", "lambda", "proc", "public", "protected", "private", "require", "load",
+    "require_relative", "extend", "autoload", "__END__", "__FILE__", "__LINE__", "__dir__"
+  ]);
+  var indentWords = wordObj(["def", "class", "case", "for", "while", "until", "module", "then",
+                             "catch", "loop", "proc", "begin"]);
+  var dedentWords = wordObj(["end", "until"]);
+  var matching = {"[": "]", "{": "}", "(": ")"};
+  var curPunc;
+
+  function chain(newtok, stream, state) {
+    state.tokenize.push(newtok);
+    return newtok(stream, state);
+  }
+
+  function tokenBase(stream, state) {
+    if (stream.sol() && stream.match("=begin") && stream.eol()) {
+      state.tokenize.push(readBlockComment);
+      return "comment";
+    }
+    if (stream.eatSpace()) return null;
+    var ch = stream.next(), m;
+    if (ch == "`" || ch == "'" || ch == '"') {
+      return chain(readQuoted(ch, "string", ch == '"' || ch == "`"), stream, state);
+    } else if (ch == "/") {
+      if (regexpAhead(stream))
+        return chain(readQuoted(ch, "string-2", true), stream, state);
+      else
+        return "operator";
+    } else if (ch == "%") {
+      var style = "string", embed = true;
+      if (stream.eat("s")) style = "atom";
+      else if (stream.eat(/[WQ]/)) style = "string";
+      else if (stream.eat(/[r]/)) style = "string-2";
+      else if (stream.eat(/[wxq]/)) { style = "string"; embed = false; }
+      var delim = stream.eat(/[^\w\s=]/);
+      if (!delim) return "operator";
+      if (matching.propertyIsEnumerable(delim)) delim = matching[delim];
+      return chain(readQuoted(delim, style, embed, true), stream, state);
+    } else if (ch == "#") {
+      stream.skipToEnd();
+      return "comment";
+    } else if (ch == "<" && (m = stream.match(/^<-?[\`\"\']?([a-zA-Z_?]\w*)[\`\"\']?(?:;|$)/))) {
+      return chain(readHereDoc(m[1]), stream, state);
+    } else if (ch == "0") {
+      if (stream.eat("x")) stream.eatWhile(/[\da-fA-F]/);
+      else if (stream.eat("b")) stream.eatWhile(/[01]/);
+      else stream.eatWhile(/[0-7]/);
+      return "number";
+    } else if (/\d/.test(ch)) {
+      stream.match(/^[\d_]*(?:\.[\d_]+)?(?:[eE][+\-]?[\d_]+)?/);
+      return "number";
+    } else if (ch == "?") {
+      while (stream.match(/^\\[CM]-/)) {}
+      if (stream.eat("\\")) stream.eatWhile(/\w/);
+      else stream.next();
+      return "string";
+    } else if (ch == ":") {
+      if (stream.eat("'")) return chain(readQuoted("'", "atom", false), stream, state);
+      if (stream.eat('"')) return chain(readQuoted('"', "atom", true), stream, state);
+
+      // :> :>> :< :<< are valid symbols
+      if (stream.eat(/[\<\>]/)) {
+        stream.eat(/[\<\>]/);
+        return "atom";
+      }
+
+      // :+ :- :/ :* :| :& :! are valid symbols
+      if (stream.eat(/[\+\-\*\/\&\|\:\!]/)) {
+        return "atom";
+      }
+
+      // Symbols can't start by a digit
+      if (stream.eat(/[a-zA-Z$@_\xa1-\uffff]/)) {
+        stream.eatWhile(/[\w$\xa1-\uffff]/);
+        // Only one ? ! = is allowed and only as the last character
+        stream.eat(/[\?\!\=]/);
+        return "atom";
+      }
+      return "operator";
+    } else if (ch == "@" && stream.match(/^@?[a-zA-Z_\xa1-\uffff]/)) {
+      stream.eat("@");
+      stream.eatWhile(/[\w\xa1-\uffff]/);
+      return "variable-2";
+    } else if (ch == "$") {
+      if (stream.eat(/[a-zA-Z_]/)) {
+        stream.eatWhile(/[\w]/);
+      } else if (stream.eat(/\d/)) {
+        stream.eat(/\d/);
+      } else {
+        stream.next(); // Must be a special global like $: or $!
+      }
+      return "variable-3";
+    } else if (/[a-zA-Z_\xa1-\uffff]/.test(ch)) {
+      stream.eatWhile(/[\w\xa1-\uffff]/);
+      stream.eat(/[\?\!]/);
+      if (stream.eat(":")) return "atom";
+      return "ident";
+    } else if (ch == "|" && (state.varList || state.lastTok == "{" || state.lastTok == "do")) {
+      curPunc = "|";
+      return null;
+    } else if (/[\(\)\[\]{}\\;]/.test(ch)) {
+      curPunc = ch;
+      return null;
+    } else if (ch == "-" && stream.eat(">")) {
+      return "arrow";
+    } else if (/[=+\-\/*:\.^%<>~|]/.test(ch)) {
+      var more = stream.eatWhile(/[=+\-\/*:\.^%<>~|]/);
+      if (ch == "." && !more) curPunc = ".";
+      return "operator";
+    } else {
+      return null;
+    }
+  }
+
+  function regexpAhead(stream) {
+    var start = stream.pos, depth = 0, next, found = false, escaped = false
+    while ((next = stream.next()) != null) {
+      if (!escaped) {
+        if ("[{(".indexOf(next) > -1) {
+          depth++
+        } else if ("]})".indexOf(next) > -1) {
+          depth--
+          if (depth < 0) break
+        } else if (next == "/" && depth == 0) {
+          found = true
+          break
+        }
+        escaped = next == "\\"
+      } else {
+        escaped = false
+      }
+    }
+    stream.backUp(stream.pos - start)
+    return found
+  }
+
+  function tokenBaseUntilBrace(depth) {
+    if (!depth) depth = 1;
+    return function(stream, state) {
+      if (stream.peek() == "}") {
+        if (depth == 1) {
+          state.tokenize.pop();
+          return state.tokenize[state.tokenize.length-1](stream, state);
+        } else {
+          state.tokenize[state.tokenize.length - 1] = tokenBaseUntilBrace(depth - 1);
+        }
+      } else if (stream.peek() == "{") {
+        state.tokenize[state.tokenize.length - 1] = tokenBaseUntilBrace(depth + 1);
+      }
+      return tokenBase(stream, state);
+    };
+  }
+  function tokenBaseOnce() {
+    var alreadyCalled = false;
+    return function(stream, state) {
+      if (alreadyCalled) {
+        state.tokenize.pop();
+        return state.tokenize[state.tokenize.length-1](stream, state);
+      }
+      alreadyCalled = true;
+      return tokenBase(stream, state);
+    };
+  }
+  function readQuoted(quote, style, embed, unescaped) {
+    return function(stream, state) {
+      var escaped = false, ch;
+
+      if (state.context.type === 'read-quoted-paused') {
+        state.context = state.context.prev;
+        stream.eat("}");
+      }
+
+      while ((ch = stream.next()) != null) {
+        if (ch == quote && (unescaped || !escaped)) {
+          state.tokenize.pop();
+          break;
+        }
+        if (embed && ch == "#" && !escaped) {
+          if (stream.eat("{")) {
+            if (quote == "}") {
+              state.context = {prev: state.context, type: 'read-quoted-paused'};
+            }
+            state.tokenize.push(tokenBaseUntilBrace());
+            break;
+          } else if (/[@\$]/.test(stream.peek())) {
+            state.tokenize.push(tokenBaseOnce());
+            break;
+          }
+        }
+        escaped = !escaped && ch == "\\";
+      }
+      return style;
+    };
+  }
+  function readHereDoc(phrase) {
+    return function(stream, state) {
+      if (stream.match(phrase)) state.tokenize.pop();
+      else stream.skipToEnd();
+      return "string";
+    };
+  }
+  function readBlockComment(stream, state) {
+    if (stream.sol() && stream.match("=end") && stream.eol())
+      state.tokenize.pop();
+    stream.skipToEnd();
+    return "comment";
+  }
+
+  return {
+    startState: function() {
+      return {tokenize: [tokenBase],
+              indented: 0,
+              context: {type: "top", indented: -config.indentUnit},
+              continuedLine: false,
+              lastTok: null,
+              varList: false};
+    },
+
+    token: function(stream, state) {
+      curPunc = null;
+      if (stream.sol()) state.indented = stream.indentation();
+      var style = state.tokenize[state.tokenize.length-1](stream, state), kwtype;
+      var thisTok = curPunc;
+      if (style == "ident") {
+        var word = stream.current();
+        style = state.lastTok == "." ? "property"
+          : keywords.propertyIsEnumerable(stream.current()) ? "keyword"
+          : /^[A-Z]/.test(word) ? "tag"
+          : (state.lastTok == "def" || state.lastTok == "class" || state.varList) ? "def"
+          : "variable";
+        if (style == "keyword") {
+          thisTok = word;
+          if (indentWords.propertyIsEnumerable(word)) kwtype = "indent";
+          else if (dedentWords.propertyIsEnumerable(word)) kwtype = "dedent";
+          else if ((word == "if" || word == "unless") && stream.column() == stream.indentation())
+            kwtype = "indent";
+          else if (word == "do" && state.context.indented < state.indented)
+            kwtype = "indent";
+        }
+      }
+      if (curPunc || (style && style != "comment")) state.lastTok = thisTok;
+      if (curPunc == "|") state.varList = !state.varList;
+
+      if (kwtype == "indent" || /[\(\[\{]/.test(curPunc))
+        state.context = {prev: state.context, type: curPunc || style, indented: state.indented};
+      else if ((kwtype == "dedent" || /[\)\]\}]/.test(curPunc)) && state.context.prev)
+        state.context = state.context.prev;
+
+      if (stream.eol())
+        state.continuedLine = (curPunc == "\\" || style == "operator");
+      return style;
+    },
+
+    indent: function(state, textAfter) {
+      if (state.tokenize[state.tokenize.length-1] != tokenBase) return 0;
+      var firstChar = textAfter && textAfter.charAt(0);
+      var ct = state.context;
+      var closing = ct.type == matching[firstChar] ||
+        ct.type == "keyword" && /^(?:end|until|else|elsif|when|rescue)\b/.test(textAfter);
+      return ct.indented + (closing ? 0 : config.indentUnit) +
+        (state.continuedLine ? config.indentUnit : 0);
+    },
+
+    electricInput: /^\s*(?:end|rescue|elsif|else|\})$/,
+    lineComment: "#"
+  };
+});
+
+CodeMirror.defineMIME("text/x-ruby", "ruby");
+
+});
diff --git a/public/codemirror/mode/ruby/test.js b/public/codemirror/mode/ruby/test.js
new file mode 100644
index 000000000..3133bd63f
--- /dev/null
+++ b/public/codemirror/mode/ruby/test.js
@@ -0,0 +1,16 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({indentUnit: 2}, "ruby");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)); }
+
+  MT("divide_equal_operator",
+     "[variable bar] [operator /=] [variable foo]");
+
+  MT("divide_equal_operator_no_spacing",
+     "[variable foo][operator /=][number 42]");
+
+  MT("complex_regexp",
+     "[keyword if] [variable cr] [operator =~] [string-2 /(?: \\( #{][tag RE_NOT][string-2 }\\( | #{][tag RE_NOT_PAR_OR][string-2 }* #{][tag RE_OPA_OR][string-2 } )/][variable x]")
+})();
diff --git a/public/codemirror/mode/rust/index.html b/public/codemirror/mode/rust/index.html
new file mode 100644
index 000000000..1fe0ad1e6
--- /dev/null
+++ b/public/codemirror/mode/rust/index.html
@@ -0,0 +1,64 @@
+
+
+CodeMirror: Rust mode
+
+
+
+
+
+
+
+
+
+
+

+
Rust mode

+
+
+

+
+    
+
+    
MIME types defined: text/x-rustsrc.

+  

diff --git a/public/codemirror/mode/rust/rust.js b/public/codemirror/mode/rust/rust.js
new file mode 100644
index 000000000..8558b53fe
--- /dev/null
+++ b/public/codemirror/mode/rust/rust.js
@@ -0,0 +1,71 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../../addon/mode/simple"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../../addon/mode/simple"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineSimpleMode("rust",{
+  start: [
+    // string and byte string
+    {regex: /b?"/, token: "string", next: "string"},
+    // raw string and raw byte string
+    {regex: /b?r"/, token: "string", next: "string_raw"},
+    {regex: /b?r#+"/, token: "string", next: "string_raw_hash"},
+    // character
+    {regex: /'(?:[^'\\]|\\(?:[nrt0'"]|x[\da-fA-F]{2}|u\{[\da-fA-F]{6}\}))'/, token: "string-2"},
+    // byte
+    {regex: /b'(?:[^']|\\(?:['\\nrt0]|x[\da-fA-F]{2}))'/, token: "string-2"},
+
+    {regex: /(?:(?:[0-9][0-9_]*)(?:(?:[Ee][+-]?[0-9_]+)|\.[0-9_]+(?:[Ee][+-]?[0-9_]+)?)(?:f32|f64)?)|(?:0(?:b[01_]+|(?:o[0-7_]+)|(?:x[0-9a-fA-F_]+))|(?:[0-9][0-9_]*))(?:u8|u16|u32|u64|i8|i16|i32|i64|isize|usize)?/,
+     token: "number"},
+    {regex: /(let(?:\s+mut)?|fn|enum|mod|struct|type)(\s+)([a-zA-Z_][a-zA-Z0-9_]*)/, token: ["keyword", null, "def"]},
+    {regex: /(?:abstract|alignof|as|box|break|continue|const|crate|do|else|enum|extern|fn|for|final|if|impl|in|loop|macro|match|mod|move|offsetof|override|priv|proc|pub|pure|ref|return|self|sizeof|static|struct|super|trait|type|typeof|unsafe|unsized|use|virtual|where|while|yield)\b/, token: "keyword"},
+    {regex: /\b(?:Self|isize|usize|char|bool|u8|u16|u32|u64|f16|f32|f64|i8|i16|i32|i64|str|Option)\b/, token: "atom"},
+    {regex: /\b(?:true|false|Some|None|Ok|Err)\b/, token: "builtin"},
+    {regex: /\b(fn)(\s+)([a-zA-Z_][a-zA-Z0-9_]*)/,
+     token: ["keyword", null ,"def"]},
+    {regex: /#!?\[.*\]/, token: "meta"},
+    {regex: /\/\/.*/, token: "comment"},
+    {regex: /\/\*/, token: "comment", next: "comment"},
+    {regex: /[-+\/*=<>!]+/, token: "operator"},
+    {regex: /[a-zA-Z_]\w*!/,token: "variable-3"},
+    {regex: /[a-zA-Z_]\w*/, token: "variable"},
+    {regex: /[\{\[\(]/, indent: true},
+    {regex: /[\}\]\)]/, dedent: true}
+  ],
+  string: [
+    {regex: /"/, token: "string", next: "start"},
+    {regex: /(?:[^\\"]|\\(?:.|$))*/, token: "string"}
+  ],
+  string_raw: [
+    {regex: /"/, token: "string", next: "start"},
+    {regex: /[^"]*/, token: "string"}
+  ],
+  string_raw_hash: [
+    {regex: /"#+/, token: "string", next: "start"},
+    {regex: /(?:[^"]|"(?!#))*/, token: "string"}
+  ],
+  comment: [
+    {regex: /.*?\*\//, token: "comment", next: "start"},
+    {regex: /.*/, token: "comment"}
+  ],
+  meta: {
+    dontIndentStates: ["comment"],
+    electricInput: /^\s*\}$/,
+    blockCommentStart: "/*",
+    blockCommentEnd: "*/",
+    lineComment: "//",
+    fold: "brace"
+  }
+});
+
+
+CodeMirror.defineMIME("text/x-rustsrc", "rust");
+});
diff --git a/public/codemirror/mode/rust/test.js b/public/codemirror/mode/rust/test.js
new file mode 100644
index 000000000..eb256c47e
--- /dev/null
+++ b/public/codemirror/mode/rust/test.js
@@ -0,0 +1,39 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({indentUnit: 4}, "rust");
+  function MT(name) {test.mode(name, mode, Array.prototype.slice.call(arguments, 1));}
+
+  MT('integer_test',
+     '[number 123i32]',
+     '[number 123u32]',
+     '[number 123_u32]',
+     '[number 0xff_u8]',
+     '[number 0o70_i16]',
+     '[number 0b1111_1111_1001_0000_i32]',
+     '[number 0usize]');
+
+  MT('float_test',
+     '[number 123.0f64]',
+     '[number 0.1f64]',
+     '[number 0.1f32]',
+     '[number 12E+99_f64]');
+
+  MT('string-literals-test',
+     '[string "foo"]',
+     '[string r"foo"]',
+     '[string "\\"foo\\""]',
+     '[string r#""foo""#]',
+     '[string "foo #\\"# bar"]',
+
+     '[string b"foo"]',
+     '[string br"foo"]',
+     '[string b"\\"foo\\""]',
+     '[string br#""foo""#]',
+     '[string br##"foo #" bar"##]',
+
+     "[string-2 'h']",
+     "[string-2 b'h']");
+
+})();
diff --git a/public/codemirror/mode/sas/index.html b/public/codemirror/mode/sas/index.html
new file mode 100644
index 000000000..636e06594
--- /dev/null
+++ b/public/codemirror/mode/sas/index.html
@@ -0,0 +1,81 @@
+
+
+CodeMirror: SAS mode
+
+
+
+
+
+
+
+
+
+
+

+
SAS mode

+

+
+
+
+
MIME types defined: text/x-sas.

+
+

diff --git a/public/codemirror/mode/sas/sas.js b/public/codemirror/mode/sas/sas.js
new file mode 100644
index 000000000..a6109eb11
--- /dev/null
+++ b/public/codemirror/mode/sas/sas.js
@@ -0,0 +1,316 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+
+// SAS mode copyright (c) 2016 Jared Dean, SAS Institute
+// Created by Jared Dean
+
+// TODO
+// indent and de-indent
+// identify macro variables
+
+
+//Definitions
+//  comment -- text withing * ; or /* */
+//  keyword -- SAS language variable
+//  variable -- macro variables starts with '&' or variable formats
+//  variable-2 -- DATA Step, proc, or macro names
+//  string -- text within ' ' or " "
+//  operator -- numeric operator + / - * ** le eq ge ... and so on
+//  builtin -- proc %macro data run mend
+//  atom
+//  def
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineMode("sas", function () {
+    var words = {};
+    var isDoubleOperatorSym = {
+      eq: 'operator',
+      lt: 'operator',
+      le: 'operator',
+      gt: 'operator',
+      ge: 'operator',
+      "in": 'operator',
+      ne: 'operator',
+      or: 'operator'
+    };
+    var isDoubleOperatorChar = /(<=|>=|!=|<>)/;
+    var isSingleOperatorChar = /[=\(:\),{}.*<>+\-\/^\[\]]/;
+
+    // Takes a string of words separated by spaces and adds them as
+    // keys with the value of the first argument 'style'
+    function define(style, string, context) {
+      if (context) {
+        var split = string.split(' ');
+        for (var i = 0; i < split.length; i++) {
+          words[split[i]] = {style: style, state: context};
+        }
+      }
+    }
+    //datastep
+    define('def', 'stack pgm view source debug nesting nolist', ['inDataStep']);
+    define('def', 'if while until for do do; end end; then else cancel', ['inDataStep']);
+    define('def', 'label format _n_ _error_', ['inDataStep']);
+    define('def', 'ALTER BUFNO BUFSIZE CNTLLEV COMPRESS DLDMGACTION ENCRYPT ENCRYPTKEY EXTENDOBSCOUNTER GENMAX GENNUM INDEX LABEL OBSBUF OUTREP PW PWREQ READ REPEMPTY REPLACE REUSE ROLE SORTEDBY SPILL TOBSNO TYPE WRITE FILECLOSE FIRSTOBS IN OBS POINTOBS WHERE WHEREUP IDXNAME IDXWHERE DROP KEEP RENAME', ['inDataStep']);
+    define('def', 'filevar finfo finv fipname fipnamel fipstate first firstobs floor', ['inDataStep']);
+    define('def', 'varfmt varinfmt varlabel varlen varname varnum varray varrayx vartype verify vformat vformatd vformatdx vformatn vformatnx vformatw vformatwx vformatx vinarray vinarrayx vinformat vinformatd vinformatdx vinformatn vinformatnx vinformatw vinformatwx vinformatx vlabel vlabelx vlength vlengthx vname vnamex vnferr vtype vtypex weekday', ['inDataStep']);
+    define('def', 'zipfips zipname zipnamel zipstate', ['inDataStep']);
+    define('def', 'put putc putn', ['inDataStep']);
+    define('builtin', 'data run', ['inDataStep']);
+
+
+    //proc
+    define('def', 'data', ['inProc']);
+
+    // flow control for macros
+    define('def', '%if %end %end; %else %else; %do %do; %then', ['inMacro']);
+
+    //everywhere
+    define('builtin', 'proc run; quit; libname filename %macro %mend option options', ['ALL']);
+
+    define('def', 'footnote title libname ods', ['ALL']);
+    define('def', '%let %put %global %sysfunc %eval ', ['ALL']);
+    // automatic macro variables http://support.sas.com/documentation/cdl/en/mcrolref/61885/HTML/default/viewer.htm#a003167023.htm
+    define('variable', '&sysbuffr &syscc &syscharwidth &syscmd &sysdate &sysdate9 &sysday &sysdevic &sysdmg &sysdsn &sysencoding &sysenv &syserr &syserrortext &sysfilrc &syshostname &sysindex &sysinfo &sysjobid &syslast &syslckrc &syslibrc &syslogapplname &sysmacroname &sysmenv &sysmsg &sysncpu &sysodspath &sysparm &syspbuff &sysprocessid &sysprocessname &sysprocname &sysrc &sysscp &sysscpl &sysscpl &syssite &sysstartid &sysstartname &systcpiphostname &systime &sysuserid &sysver &sysvlong &sysvlong4 &syswarningtext', ['ALL']);
+
+    //footnote[1-9]? title[1-9]?
+
+    //options statement
+    define('def', 'source2 nosource2 page pageno pagesize', ['ALL']);
+
+    //proc and datastep
+    define('def', '_all_ _character_ _cmd_ _freq_ _i_ _infile_ _last_ _msg_ _null_ _numeric_ _temporary_ _type_ abort abs addr adjrsq airy alpha alter altlog altprint and arcos array arsin as atan attrc attrib attrn authserver autoexec awscontrol awsdef awsmenu awsmenumerge awstitle backward band base betainv between blocksize blshift bnot bor brshift bufno bufsize bxor by byerr byline byte calculated call cards cards4 catcache cbufno cdf ceil center cexist change chisq cinv class cleanup close cnonct cntllev coalesce codegen col collate collin column comamid comaux1 comaux2 comdef compbl compound compress config continue convert cos cosh cpuid create cross crosstab css curobs cv daccdb daccdbsl daccsl daccsyd dacctab dairy datalines datalines4 datejul datepart datetime day dbcslang dbcstype dclose ddm delete delimiter depdb depdbsl depsl depsyd deptab dequote descending descript design= device dflang dhms dif digamma dim dinfo display distinct dkricond dkrocond dlm dnum do dopen doptname doptnum dread drop dropnote dsname dsnferr echo else emaildlg emailid emailpw emailserver emailsys encrypt end endsas engine eof eov erf erfc error errorcheck errors exist exp fappend fclose fcol fdelete feedback fetch fetchobs fexist fget file fileclose fileexist filefmt filename fileref  fmterr fmtsearch fnonct fnote font fontalias  fopen foptname foptnum force formatted formchar formdelim formdlim forward fpoint fpos fput fread frewind frlen from fsep fuzz fwrite gaminv gamma getoption getvarc getvarn go goto group gwindow hbar hbound helpenv helploc hms honorappearance hosthelp hostprint hour hpct html hvar ibessel ibr id if index indexc indexw initcmd initstmt inner input inputc inputn inr insert int intck intnx into intrr invaliddata irr is jbessel join juldate keep kentb kurtosis label lag last lbound leave left length levels lgamma lib  library libref line linesize link list log log10 log2 logpdf logpmf logsdf lostcard lowcase lrecl ls macro macrogen maps mautosource max maxdec maxr mdy mean measures median memtype merge merror min minute missing missover mlogic mod mode model modify month mopen mort mprint mrecall msglevel msymtabmax mvarsize myy n nest netpv new news nmiss no nobatch nobs nocaps nocardimage nocenter nocharcode nocmdmac nocol nocum nodate nodbcs nodetails nodmr nodms nodmsbatch nodup nodupkey noduplicates noechoauto noequals noerrorabend noexitwindows nofullstimer noicon noimplmac noint nolist noloadlist nomiss nomlogic nomprint nomrecall nomsgcase nomstored nomultenvappl nonotes nonumber noobs noovp nopad nopercent noprint noprintinit normal norow norsasuser nosetinit  nosplash nosymbolgen note notes notitle notitles notsorted noverbose noxsync noxwait npv null number numkeys nummousekeys nway obs  on open     order ordinal otherwise out outer outp= output over ovp p(1 5 10 25 50 75 90 95 99) pad pad2  paired parm parmcards path pathdll pathname pdf peek peekc pfkey pmf point poisson poke position printer probbeta probbnml probchi probf probgam probhypr probit probnegb probnorm probsig probt procleave prt ps  pw pwreq qtr quote r ranbin rancau ranexp rangam range ranks rannor ranpoi rantbl rantri ranuni read recfm register regr remote remove rename repeat replace resolve retain return reuse reverse rewind right round rsquare rtf rtrace rtraceloc s s2 samploc sasautos sascontrol sasfrscr sasmsg sasmstore sasscript sasuser saving scan sdf second select selection separated seq serror set setcomm setot sign simple sin sinh siteinfo skewness skip sle sls sortedby sortpgm sortseq sortsize soundex  spedis splashlocation split spool sqrt start std stderr stdin stfips stimer stname stnamel stop stopover subgroup subpopn substr sum sumwgt symbol symbolgen symget symput sysget sysin sysleave sysmsg sysparm sysprint sysprintfont sysprod sysrc system t table tables tan tanh tapeclose tbufsize terminal test then timepart tinv  tnonct to today tol tooldef totper transformout translate trantab tranwrd trigamma trim trimn trunc truncover type unformatted uniform union until upcase update user usericon uss validate value var  weight when where while wincharset window work workinit workterm write wsum xsync xwait yearcutoff yes yyq  min max', ['inDataStep', 'inProc']);
+    define('operator', 'and not ', ['inDataStep', 'inProc']);
+
+    // Main function
+    function tokenize(stream, state) {
+      // Finally advance the stream
+      var ch = stream.next();
+
+      // BLOCKCOMMENT
+      if (ch === '/' && stream.eat('*')) {
+        state.continueComment = true;
+        return "comment";
+      } else if (state.continueComment === true) { // in comment block
+        //comment ends at the beginning of the line
+        if (ch === '*' && stream.peek() === '/') {
+          stream.next();
+          state.continueComment = false;
+        } else if (stream.skipTo('*')) { //comment is potentially later in line
+          stream.skipTo('*');
+          stream.next();
+          if (stream.eat('/'))
+            state.continueComment = false;
+        } else {
+          stream.skipToEnd();
+        }
+        return "comment";
+      }
+
+      // DoubleOperator match
+      var doubleOperator = ch + stream.peek();
+
+      // Match all line comments.
+      var myString = stream.string;
+      var myRegexp = /(?:^\s*|[;]\s*)(\*.*?);/ig;
+      var match = myRegexp.exec(myString);
+      if (match !== null) {
+        if (match.index === 0 && (stream.column() !== (match.index + match[0].length - 1))) {
+          stream.backUp(stream.column());
+          stream.skipTo(';');
+          stream.next();
+          return 'comment';
+        } else if (match.index + 1 < stream.column() && stream.column() < match.index + match[0].length - 1) {
+          // the ';' triggers the match so move one past it to start
+          // the comment block that is why match.index+1
+          stream.backUp(stream.column() - match.index - 1);
+          stream.skipTo(';');
+          stream.next();
+          return 'comment';
+        }
+      } else if ((ch === '"' || ch === "'") && !state.continueString) {
+        state.continueString = ch
+        return "string"
+      } else if (state.continueString) {
+        if (state.continueString == ch) {
+          state.continueString = null;
+        } else if (stream.skipTo(state.continueString)) {
+          // quote found on this line
+          stream.next();
+          state.continueString = null;
+        } else {
+          stream.skipToEnd();
+        }
+        return "string";
+      } else if (state.continueString !== null && stream.eol()) {
+        stream.skipTo(state.continueString) || stream.skipToEnd();
+        return "string";
+      } else if (/[\d\.]/.test(ch)) { //find numbers
+        if (ch === ".")
+          stream.match(/^[0-9]+([eE][\-+]?[0-9]+)?/);
+        else if (ch === "0")
+          stream.match(/^[xX][0-9a-fA-F]+/) || stream.match(/^0[0-7]+/);
+        else
+          stream.match(/^[0-9]*\.?[0-9]*([eE][\-+]?[0-9]+)?/);
+        return "number";
+      } else if (isDoubleOperatorChar.test(ch + stream.peek())) { // TWO SYMBOL TOKENS
+        stream.next();
+        return "operator";
+      } else if (isDoubleOperatorSym.hasOwnProperty(doubleOperator)) {
+        stream.next();
+        if (stream.peek() === ' ')
+          return isDoubleOperatorSym[doubleOperator.toLowerCase()];
+      } else if (isSingleOperatorChar.test(ch)) { // SINGLE SYMBOL TOKENS
+        return "operator";
+      }
+
+      // Matches one whole word -- even if the word is a character
+      var word;
+      if (stream.match(/[%&;\w]+/, false) != null) {
+        word = ch + stream.match(/[%&;\w]+/, true);
+        if (/&/.test(word)) return 'variable'
+      } else {
+        word = ch;
+      }
+      // the word after DATA PROC or MACRO
+      if (state.nextword) {
+        stream.match(/[\w]+/);
+        // match memname.libname
+        if (stream.peek() === '.') stream.skipTo(' ');
+        state.nextword = false;
+        return 'variable-2';
+      }
+
+      word = word.toLowerCase()
+      // Are we in a DATA Step?
+      if (state.inDataStep) {
+        if (word === 'run;' || stream.match(/run\s;/)) {
+          state.inDataStep = false;
+          return 'builtin';
+        }
+        // variable formats
+        if ((word) && stream.next() === '.') {
+          //either a format or libname.memname
+          if (/\w/.test(stream.peek())) return 'variable-2';
+          else return 'variable';
+        }
+        // do we have a DATA Step keyword
+        if (word && words.hasOwnProperty(word) &&
+            (words[word].state.indexOf("inDataStep") !== -1 ||
+             words[word].state.indexOf("ALL") !== -1)) {
+          //backup to the start of the word
+          if (stream.start < stream.pos)
+            stream.backUp(stream.pos - stream.start);
+          //advance the length of the word and return
+          for (var i = 0; i < word.length; ++i) stream.next();
+          return words[word].style;
+        }
+      }
+      // Are we in an Proc statement?
+      if (state.inProc) {
+        if (word === 'run;' || word === 'quit;') {
+          state.inProc = false;
+          return 'builtin';
+        }
+        // do we have a proc keyword
+        if (word && words.hasOwnProperty(word) &&
+            (words[word].state.indexOf("inProc") !== -1 ||
+             words[word].state.indexOf("ALL") !== -1)) {
+          stream.match(/[\w]+/);
+          return words[word].style;
+        }
+      }
+      // Are we in a Macro statement?
+      if (state.inMacro) {
+        if (word === '%mend') {
+          if (stream.peek() === ';') stream.next();
+          state.inMacro = false;
+          return 'builtin';
+        }
+        if (word && words.hasOwnProperty(word) &&
+            (words[word].state.indexOf("inMacro") !== -1 ||
+             words[word].state.indexOf("ALL") !== -1)) {
+          stream.match(/[\w]+/);
+          return words[word].style;
+        }
+
+        return 'atom';
+      }
+      // Do we have Keywords specific words?
+      if (word && words.hasOwnProperty(word)) {
+        // Negates the initial next()
+        stream.backUp(1);
+        // Actually move the stream
+        stream.match(/[\w]+/);
+        if (word === 'data' && /=/.test(stream.peek()) === false) {
+          state.inDataStep = true;
+          state.nextword = true;
+          return 'builtin';
+        }
+        if (word === 'proc') {
+          state.inProc = true;
+          state.nextword = true;
+          return 'builtin';
+        }
+        if (word === '%macro') {
+          state.inMacro = true;
+          state.nextword = true;
+          return 'builtin';
+        }
+        if (/title[1-9]/.test(word)) return 'def';
+
+        if (word === 'footnote') {
+          stream.eat(/[1-9]/);
+          return 'def';
+        }
+
+        // Returns their value as state in the prior define methods
+        if (state.inDataStep === true && words[word].state.indexOf("inDataStep") !== -1)
+          return words[word].style;
+        if (state.inProc === true && words[word].state.indexOf("inProc") !== -1)
+          return words[word].style;
+        if (state.inMacro === true && words[word].state.indexOf("inMacro") !== -1)
+          return words[word].style;
+        if (words[word].state.indexOf("ALL") !== -1)
+          return words[word].style;
+        return null;
+      }
+      // Unrecognized syntax
+      return null;
+    }
+
+    return {
+      startState: function () {
+        return {
+          inDataStep: false,
+          inProc: false,
+          inMacro: false,
+          nextword: false,
+          continueString: null,
+          continueComment: false
+        };
+      },
+      token: function (stream, state) {
+        // Strip the spaces, but regex will account for them either way
+        if (stream.eatSpace()) return null;
+        // Go through the main process
+        return tokenize(stream, state);
+      },
+
+      blockCommentStart: "/*",
+      blockCommentEnd: "*/"
+    };
+
+  });
+
+  CodeMirror.defineMIME("text/x-sas", "sas");
+});
diff --git a/public/codemirror/mode/sass/index.html b/public/codemirror/mode/sass/index.html
new file mode 100644
index 000000000..6305649e5
--- /dev/null
+++ b/public/codemirror/mode/sass/index.html
@@ -0,0 +1,68 @@
+
+
+CodeMirror: Sass mode
+
+
+
+
+
+
+
+
+
+
+
+

+
Sass mode

+

+    
+
+    
MIME types defined: text/x-sass.

+  

diff --git a/public/codemirror/mode/sass/sass.js b/public/codemirror/mode/sass/sass.js
new file mode 100644
index 000000000..ba0e05626
--- /dev/null
+++ b/public/codemirror/mode/sass/sass.js
@@ -0,0 +1,454 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../css/css"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../css/css"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("sass", function(config) {
+  var cssMode = CodeMirror.mimeModes["text/css"];
+  var propertyKeywords = cssMode.propertyKeywords || {},
+      colorKeywords = cssMode.colorKeywords || {},
+      valueKeywords = cssMode.valueKeywords || {},
+      fontProperties = cssMode.fontProperties || {};
+
+  function tokenRegexp(words) {
+    return new RegExp("^" + words.join("|"));
+  }
+
+  var keywords = ["true", "false", "null", "auto"];
+  var keywordsRegexp = new RegExp("^" + keywords.join("|"));
+
+  var operators = ["\\(", "\\)", "=", ">", "<", "==", ">=", "<=", "\\+", "-",
+                   "\\!=", "/", "\\*", "%", "and", "or", "not", ";","\\{","\\}",":"];
+  var opRegexp = tokenRegexp(operators);
+
+  var pseudoElementsRegexp = /^::?[a-zA-Z_][\w\-]*/;
+
+  var word;
+
+  function isEndLine(stream) {
+    return !stream.peek() || stream.match(/\s+$/, false);
+  }
+
+  function urlTokens(stream, state) {
+    var ch = stream.peek();
+
+    if (ch === ")") {
+      stream.next();
+      state.tokenizer = tokenBase;
+      return "operator";
+    } else if (ch === "(") {
+      stream.next();
+      stream.eatSpace();
+
+      return "operator";
+    } else if (ch === "'" || ch === '"') {
+      state.tokenizer = buildStringTokenizer(stream.next());
+      return "string";
+    } else {
+      state.tokenizer = buildStringTokenizer(")", false);
+      return "string";
+    }
+  }
+  function comment(indentation, multiLine) {
+    return function(stream, state) {
+      if (stream.sol() && stream.indentation() <= indentation) {
+        state.tokenizer = tokenBase;
+        return tokenBase(stream, state);
+      }
+
+      if (multiLine && stream.skipTo("*/")) {
+        stream.next();
+        stream.next();
+        state.tokenizer = tokenBase;
+      } else {
+        stream.skipToEnd();
+      }
+
+      return "comment";
+    };
+  }
+
+  function buildStringTokenizer(quote, greedy) {
+    if (greedy == null) { greedy = true; }
+
+    function stringTokenizer(stream, state) {
+      var nextChar = stream.next();
+      var peekChar = stream.peek();
+      var previousChar = stream.string.charAt(stream.pos-2);
+
+      var endingString = ((nextChar !== "\\" && peekChar === quote) || (nextChar === quote && previousChar !== "\\"));
+
+      if (endingString) {
+        if (nextChar !== quote && greedy) { stream.next(); }
+        if (isEndLine(stream)) {
+          state.cursorHalf = 0;
+        }
+        state.tokenizer = tokenBase;
+        return "string";
+      } else if (nextChar === "#" && peekChar === "{") {
+        state.tokenizer = buildInterpolationTokenizer(stringTokenizer);
+        stream.next();
+        return "operator";
+      } else {
+        return "string";
+      }
+    }
+
+    return stringTokenizer;
+  }
+
+  function buildInterpolationTokenizer(currentTokenizer) {
+    return function(stream, state) {
+      if (stream.peek() === "}") {
+        stream.next();
+        state.tokenizer = currentTokenizer;
+        return "operator";
+      } else {
+        return tokenBase(stream, state);
+      }
+    };
+  }
+
+  function indent(state) {
+    if (state.indentCount == 0) {
+      state.indentCount++;
+      var lastScopeOffset = state.scopes[0].offset;
+      var currentOffset = lastScopeOffset + config.indentUnit;
+      state.scopes.unshift({ offset:currentOffset });
+    }
+  }
+
+  function dedent(state) {
+    if (state.scopes.length == 1) return;
+
+    state.scopes.shift();
+  }
+
+  function tokenBase(stream, state) {
+    var ch = stream.peek();
+
+    // Comment
+    if (stream.match("/*")) {
+      state.tokenizer = comment(stream.indentation(), true);
+      return state.tokenizer(stream, state);
+    }
+    if (stream.match("//")) {
+      state.tokenizer = comment(stream.indentation(), false);
+      return state.tokenizer(stream, state);
+    }
+
+    // Interpolation
+    if (stream.match("#{")) {
+      state.tokenizer = buildInterpolationTokenizer(tokenBase);
+      return "operator";
+    }
+
+    // Strings
+    if (ch === '"' || ch === "'") {
+      stream.next();
+      state.tokenizer = buildStringTokenizer(ch);
+      return "string";
+    }
+
+    if(!state.cursorHalf){// state.cursorHalf === 0
+    // first half i.e. before : for key-value pairs
+    // including selectors
+
+      if (ch === "-") {
+        if (stream.match(/^-\w+-/)) {
+          return "meta";
+        }
+      }
+
+      if (ch === ".") {
+        stream.next();
+        if (stream.match(/^[\w-]+/)) {
+          indent(state);
+          return "qualifier";
+        } else if (stream.peek() === "#") {
+          indent(state);
+          return "tag";
+        }
+      }
+
+      if (ch === "#") {
+        stream.next();
+        // ID selectors
+        if (stream.match(/^[\w-]+/)) {
+          indent(state);
+          return "builtin";
+        }
+        if (stream.peek() === "#") {
+          indent(state);
+          return "tag";
+        }
+      }
+
+      // Variables
+      if (ch === "$") {
+        stream.next();
+        stream.eatWhile(/[\w-]/);
+        return "variable-2";
+      }
+
+      // Numbers
+      if (stream.match(/^-?[0-9\.]+/))
+        return "number";
+
+      // Units
+      if (stream.match(/^(px|em|in)\b/))
+        return "unit";
+
+      if (stream.match(keywordsRegexp))
+        return "keyword";
+
+      if (stream.match(/^url/) && stream.peek() === "(") {
+        state.tokenizer = urlTokens;
+        return "atom";
+      }
+
+      if (ch === "=") {
+        // Match shortcut mixin definition
+        if (stream.match(/^=[\w-]+/)) {
+          indent(state);
+          return "meta";
+        }
+      }
+
+      if (ch === "+") {
+        // Match shortcut mixin definition
+        if (stream.match(/^\+[\w-]+/)){
+          return "variable-3";
+        }
+      }
+
+      if(ch === "@"){
+        if(stream.match(/@extend/)){
+          if(!stream.match(/\s*[\w]/))
+            dedent(state);
+        }
+      }
+
+
+      // Indent Directives
+      if (stream.match(/^@(else if|if|media|else|for|each|while|mixin|function)/)) {
+        indent(state);
+        return "def";
+      }
+
+      // Other Directives
+      if (ch === "@") {
+        stream.next();
+        stream.eatWhile(/[\w-]/);
+        return "def";
+      }
+
+      if (stream.eatWhile(/[\w-]/)){
+        if(stream.match(/ *: *[\w-\+\$#!\("']/,false)){
+          word = stream.current().toLowerCase();
+          var prop = state.prevProp + "-" + word;
+          if (propertyKeywords.hasOwnProperty(prop)) {
+            return "property";
+          } else if (propertyKeywords.hasOwnProperty(word)) {
+            state.prevProp = word;
+            return "property";
+          } else if (fontProperties.hasOwnProperty(word)) {
+            return "property";
+          }
+          return "tag";
+        }
+        else if(stream.match(/ *:/,false)){
+          indent(state);
+          state.cursorHalf = 1;
+          state.prevProp = stream.current().toLowerCase();
+          return "property";
+        }
+        else if(stream.match(/ *,/,false)){
+          return "tag";
+        }
+        else{
+          indent(state);
+          return "tag";
+        }
+      }
+
+      if(ch === ":"){
+        if (stream.match(pseudoElementsRegexp)){ // could be a pseudo-element
+          return "variable-3";
+        }
+        stream.next();
+        state.cursorHalf=1;
+        return "operator";
+      }
+
+    } // cursorHalf===0 ends here
+    else{
+
+      if (ch === "#") {
+        stream.next();
+        // Hex numbers
+        if (stream.match(/[0-9a-fA-F]{6}|[0-9a-fA-F]{3}/)){
+          if (isEndLine(stream)) {
+            state.cursorHalf = 0;
+          }
+          return "number";
+        }
+      }
+
+      // Numbers
+      if (stream.match(/^-?[0-9\.]+/)){
+        if (isEndLine(stream)) {
+          state.cursorHalf = 0;
+        }
+        return "number";
+      }
+
+      // Units
+      if (stream.match(/^(px|em|in)\b/)){
+        if (isEndLine(stream)) {
+          state.cursorHalf = 0;
+        }
+        return "unit";
+      }
+
+      if (stream.match(keywordsRegexp)){
+        if (isEndLine(stream)) {
+          state.cursorHalf = 0;
+        }
+        return "keyword";
+      }
+
+      if (stream.match(/^url/) && stream.peek() === "(") {
+        state.tokenizer = urlTokens;
+        if (isEndLine(stream)) {
+          state.cursorHalf = 0;
+        }
+        return "atom";
+      }
+
+      // Variables
+      if (ch === "$") {
+        stream.next();
+        stream.eatWhile(/[\w-]/);
+        if (isEndLine(stream)) {
+          state.cursorHalf = 0;
+        }
+        return "variable-2";
+      }
+
+      // bang character for !important, !default, etc.
+      if (ch === "!") {
+        stream.next();
+        state.cursorHalf = 0;
+        return stream.match(/^[\w]+/) ? "keyword": "operator";
+      }
+
+      if (stream.match(opRegexp)){
+        if (isEndLine(stream)) {
+          state.cursorHalf = 0;
+        }
+        return "operator";
+      }
+
+      // attributes
+      if (stream.eatWhile(/[\w-]/)) {
+        if (isEndLine(stream)) {
+          state.cursorHalf = 0;
+        }
+        word = stream.current().toLowerCase();
+        if (valueKeywords.hasOwnProperty(word)) {
+          return "atom";
+        } else if (colorKeywords.hasOwnProperty(word)) {
+          return "keyword";
+        } else if (propertyKeywords.hasOwnProperty(word)) {
+          state.prevProp = stream.current().toLowerCase();
+          return "property";
+        } else {
+          return "tag";
+        }
+      }
+
+      //stream.eatSpace();
+      if (isEndLine(stream)) {
+        state.cursorHalf = 0;
+        return null;
+      }
+
+    } // else ends here
+
+    if (stream.match(opRegexp))
+      return "operator";
+
+    // If we haven't returned by now, we move 1 character
+    // and return an error
+    stream.next();
+    return null;
+  }
+
+  function tokenLexer(stream, state) {
+    if (stream.sol()) state.indentCount = 0;
+    var style = state.tokenizer(stream, state);
+    var current = stream.current();
+
+    if (current === "@return" || current === "}"){
+      dedent(state);
+    }
+
+    if (style !== null) {
+      var startOfToken = stream.pos - current.length;
+
+      var withCurrentIndent = startOfToken + (config.indentUnit * state.indentCount);
+
+      var newScopes = [];
+
+      for (var i = 0; i < state.scopes.length; i++) {
+        var scope = state.scopes[i];
+
+        if (scope.offset <= withCurrentIndent)
+          newScopes.push(scope);
+      }
+
+      state.scopes = newScopes;
+    }
+
+
+    return style;
+  }
+
+  return {
+    startState: function() {
+      return {
+        tokenizer: tokenBase,
+        scopes: [{offset: 0, type: "sass"}],
+        indentCount: 0,
+        cursorHalf: 0,  // cursor half tells us if cursor lies after (1)
+                        // or before (0) colon (well... more or less)
+        definedVars: [],
+        definedMixins: []
+      };
+    },
+    token: function(stream, state) {
+      var style = tokenLexer(stream, state);
+
+      state.lastToken = { style: style, content: stream.current() };
+
+      return style;
+    },
+
+    indent: function(state) {
+      return state.scopes[0].offset;
+    }
+  };
+});
+
+CodeMirror.defineMIME("text/x-sass", "sass");
+
+});
diff --git a/public/codemirror/mode/sass/test.js b/public/codemirror/mode/sass/test.js
new file mode 100644
index 000000000..6b2f59321
--- /dev/null
+++ b/public/codemirror/mode/sass/test.js
@@ -0,0 +1,122 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({indentUnit: 2}, "sass");
+  // Since Sass has an indent-based syntax, is almost impossible to test correctly the indentation in all cases.
+  // So disable it for tests.
+  mode.indent = undefined;
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)); }
+
+  MT("comment",
+     "[comment // this is a comment]",
+     "[comment   also this is a comment]")
+
+  MT("comment_multiline",
+     "[comment /* this is a comment]",
+     "[comment   also this is a comment]")
+
+  MT("variable",
+     "[variable-2 $page-width][operator :] [number 800][unit px]")
+
+  MT("global_attributes",
+     "[tag body]",
+     "  [property font][operator :]",
+     "    [property family][operator :] [atom sans-serif]",
+     "    [property size][operator :] [number 30][unit em]",
+     "    [property weight][operator :] [atom bold]")
+
+  MT("scoped_styles",
+     "[builtin #contents]",
+     "  [property width][operator :] [variable-2 $page-width]",
+     "  [builtin #sidebar]",
+     "    [property float][operator :] [atom right]",
+     "    [property width][operator :] [variable-2 $sidebar-width]",
+     "  [builtin #main]",
+     "    [property width][operator :] [variable-2 $page-width] [operator -] [variable-2 $sidebar-width]",
+     "    [property background][operator :] [variable-2 $primary-color]",
+     "    [tag h2]",
+     "      [property color][operator :] [keyword blue]")
+
+  // Sass allows to write the colon as first char instead of a "separator".
+  //   :color red
+  // Not supported
+  // MT("property_syntax",
+  //    "[qualifier .foo]",
+  //    "  [operator :][property color] [keyword red]")
+
+  MT("import",
+     "[def @import] [string \"sass/variables\"]",
+     // Probably it should parsed as above: as a string even without the " or '
+     // "[def @import] [string sass/baz]"
+     "[def @import] [tag sass][operator /][tag baz]")
+
+  MT("def",
+     "[def @if] [variable-2 $foo] [def @else]")
+
+  MT("tag_on_more_lines",
+    "[tag td],",
+    "[tag th]",
+    "  [property font-family][operator :] [string \"Arial\"], [atom serif]")
+
+  MT("important",
+     "[qualifier .foo]",
+     "  [property text-decoration][operator :] [atom none] [keyword !important]",
+     "[tag h1]",
+     "  [property font-size][operator :] [number 2.5][unit em]")
+
+  MT("selector",
+     // SCSS doesn't highlight the :
+     // "[tag h1]:[variable-3 before],",
+     // "[tag h2]:[variable-3 before]",
+     "[tag h1][variable-3 :before],",
+     "[tag h2][variable-3 :before]",
+     "  [property content][operator :] [string \"::\"]")
+
+  MT("definition_mixin_equal",
+     "[variable-2 $defined-bs-type][operator :] [atom border-box] [keyword !default]",
+     "[meta =bs][operator (][variable-2 $bs-type][operator :] [variable-2 $defined-bs-type][operator )]",
+     "  [meta -webkit-][property box-sizing][operator :] [variable-2 $bs-type]",
+     "  [property box-sizing][operator :] [variable-2 $bs-type]")
+
+  MT("definition_mixin_with_space",
+     "[variable-2 $defined-bs-type][operator :] [atom border-box] [keyword !default]",
+     "[def @mixin] [tag bs][operator (][variable-2 $bs-type][operator :] [variable-2 $defined-bs-type][operator )] ",
+     "  [meta -moz-][property box-sizing][operator :] [variable-2 $bs-type]",
+     "  [property box-sizing][operator :] [variable-2 $bs-type]")
+
+  MT("numbers_start_dot_include_plus",
+     // The % is not highlighted correctly
+     // "[meta =button-links][operator (][variable-2 $button-base][operator :] [atom darken][operator (][variable-2 $color11], [number 10][unit %][operator )][operator )]",
+     "[meta =button-links][operator (][variable-2 $button-base][operator :] [atom darken][operator (][variable-2 $color11], [number 10][operator %))]",
+     "  [property padding][operator :] [number .3][unit em] [number .6][unit em]",
+     "  [variable-3 +border-radius][operator (][number 8][unit px][operator )]",
+     "  [property background-color][operator :] [variable-2 $button-base]")
+
+  MT("include",
+     "[qualifier .bar]",
+     "  [def @include] [tag border-radius][operator (][number 8][unit px][operator )]")
+
+  MT("reference_parent",
+     "[qualifier .col]",
+     "  [property clear][operator :] [atom both]",
+     // SCSS doesn't highlight the :
+     // "  &:[variable-3 after]",
+     "  &[variable-3 :after]",
+     "    [property content][operator :] [string '']",
+     "    [property clear][operator :] [atom both]")
+
+  MT("reference_parent_with_spaces",
+     "[tag section]",
+     "  [property border-left][operator :]  [number 20][unit px] [atom transparent] [atom solid] ",
+     "  &[qualifier .section3]",
+     "    [qualifier .title]",
+     "      [property color][operator :] [keyword white] ",
+     "    [qualifier .vermas]",
+     "      [property display][operator :] [atom none]")
+
+  MT("font_face",
+     "[def @font-face]",
+     "  [property font-family][operator :] [string 'icomoon']",
+     "  [property src][operator :] [atom url][operator (][string fonts/icomoon.ttf][operator )]")
+})();
diff --git a/public/codemirror/mode/scheme/index.html b/public/codemirror/mode/scheme/index.html
new file mode 100644
index 000000000..04d5c6a2a
--- /dev/null
+++ b/public/codemirror/mode/scheme/index.html
@@ -0,0 +1,77 @@
+
+
+CodeMirror: Scheme mode
+
+
+
+
+
+
+
+
+
+

+
Scheme mode

+

+    
+
+    
MIME types defined: text/x-scheme.

+
+  

diff --git a/public/codemirror/mode/scheme/scheme.js b/public/codemirror/mode/scheme/scheme.js
new file mode 100644
index 000000000..223464591
--- /dev/null
+++ b/public/codemirror/mode/scheme/scheme.js
@@ -0,0 +1,249 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+/**
+ * Author: Koh Zi Han, based on implementation by Koh Zi Chun
+ */
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("scheme", function () {
+    var BUILTIN = "builtin", COMMENT = "comment", STRING = "string",
+        ATOM = "atom", NUMBER = "number", BRACKET = "bracket";
+    var INDENT_WORD_SKIP = 2;
+
+    function makeKeywords(str) {
+        var obj = {}, words = str.split(" ");
+        for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+        return obj;
+    }
+
+    var keywords = makeKeywords("λ case-lambda call/cc class define-class exit-handler field import inherit init-field interface let*-values let-values let/ec mixin opt-lambda override protect provide public rename require require-for-syntax syntax syntax-case syntax-error unit/sig unless when with-syntax and begin call-with-current-continuation call-with-input-file call-with-output-file case cond define define-syntax delay do dynamic-wind else for-each if lambda let let* let-syntax letrec letrec-syntax map or syntax-rules abs acos angle append apply asin assoc assq assv atan boolean? caar cadr call-with-input-file call-with-output-file call-with-values car cdddar cddddr cdr ceiling char->integer char-alphabetic? char-ci<=? char-ci=? char-ci>? char-downcase char-lower-case? char-numeric? char-ready? char-upcase char-upper-case? char-whitespace? char<=? char=? char>? char? close-input-port close-output-port complex? cons cos current-input-port current-output-port denominator display eof-object? eq? equal? eqv? eval even? exact->inexact exact? exp expt #f floor force gcd imag-part inexact->exact inexact? input-port? integer->char integer? interaction-environment lcm length list list->string list->vector list-ref list-tail list? load log magnitude make-polar make-rectangular make-string make-vector max member memq memv min modulo negative? newline not null-environment null? number->string number? numerator odd? open-input-file open-output-file output-port? pair? peek-char port? positive? procedure? quasiquote quote quotient rational? rationalize read read-char real-part real? remainder reverse round scheme-report-environment set! set-car! set-cdr! sin sqrt string string->list string->number string->symbol string-append string-ci<=? string-ci=? string-ci>? string-copy string-fill! string-length string-ref string-set! string<=? string=? string>? string? substring symbol->string symbol? #t tan transcript-off transcript-on truncate values vector vector->list vector-fill! vector-length vector-ref vector-set! with-input-from-file with-output-to-file write write-char zero?");
+    var indentKeys = makeKeywords("define let letrec let* lambda");
+
+    function stateStack(indent, type, prev) { // represents a state stack object
+        this.indent = indent;
+        this.type = type;
+        this.prev = prev;
+    }
+
+    function pushStack(state, indent, type) {
+        state.indentStack = new stateStack(indent, type, state.indentStack);
+    }
+
+    function popStack(state) {
+        state.indentStack = state.indentStack.prev;
+    }
+
+    var binaryMatcher = new RegExp(/^(?:[-+]i|[-+][01]+#*(?:\/[01]+#*)?i|[-+]?[01]+#*(?:\/[01]+#*)?@[-+]?[01]+#*(?:\/[01]+#*)?|[-+]?[01]+#*(?:\/[01]+#*)?[-+](?:[01]+#*(?:\/[01]+#*)?)?i|[-+]?[01]+#*(?:\/[01]+#*)?)(?=[()\s;"]|$)/i);
+    var octalMatcher = new RegExp(/^(?:[-+]i|[-+][0-7]+#*(?:\/[0-7]+#*)?i|[-+]?[0-7]+#*(?:\/[0-7]+#*)?@[-+]?[0-7]+#*(?:\/[0-7]+#*)?|[-+]?[0-7]+#*(?:\/[0-7]+#*)?[-+](?:[0-7]+#*(?:\/[0-7]+#*)?)?i|[-+]?[0-7]+#*(?:\/[0-7]+#*)?)(?=[()\s;"]|$)/i);
+    var hexMatcher = new RegExp(/^(?:[-+]i|[-+][\da-f]+#*(?:\/[\da-f]+#*)?i|[-+]?[\da-f]+#*(?:\/[\da-f]+#*)?@[-+]?[\da-f]+#*(?:\/[\da-f]+#*)?|[-+]?[\da-f]+#*(?:\/[\da-f]+#*)?[-+](?:[\da-f]+#*(?:\/[\da-f]+#*)?)?i|[-+]?[\da-f]+#*(?:\/[\da-f]+#*)?)(?=[()\s;"]|$)/i);
+    var decimalMatcher = new RegExp(/^(?:[-+]i|[-+](?:(?:(?:\d+#+\.?#*|\d+\.\d*#*|\.\d+#*|\d+)(?:[esfdl][-+]?\d+)?)|\d+#*\/\d+#*)i|[-+]?(?:(?:(?:\d+#+\.?#*|\d+\.\d*#*|\.\d+#*|\d+)(?:[esfdl][-+]?\d+)?)|\d+#*\/\d+#*)@[-+]?(?:(?:(?:\d+#+\.?#*|\d+\.\d*#*|\.\d+#*|\d+)(?:[esfdl][-+]?\d+)?)|\d+#*\/\d+#*)|[-+]?(?:(?:(?:\d+#+\.?#*|\d+\.\d*#*|\.\d+#*|\d+)(?:[esfdl][-+]?\d+)?)|\d+#*\/\d+#*)[-+](?:(?:(?:\d+#+\.?#*|\d+\.\d*#*|\.\d+#*|\d+)(?:[esfdl][-+]?\d+)?)|\d+#*\/\d+#*)?i|(?:(?:(?:\d+#+\.?#*|\d+\.\d*#*|\.\d+#*|\d+)(?:[esfdl][-+]?\d+)?)|\d+#*\/\d+#*))(?=[()\s;"]|$)/i);
+
+    function isBinaryNumber (stream) {
+        return stream.match(binaryMatcher);
+    }
+
+    function isOctalNumber (stream) {
+        return stream.match(octalMatcher);
+    }
+
+    function isDecimalNumber (stream, backup) {
+        if (backup === true) {
+            stream.backUp(1);
+        }
+        return stream.match(decimalMatcher);
+    }
+
+    function isHexNumber (stream) {
+        return stream.match(hexMatcher);
+    }
+
+    return {
+        startState: function () {
+            return {
+                indentStack: null,
+                indentation: 0,
+                mode: false,
+                sExprComment: false
+            };
+        },
+
+        token: function (stream, state) {
+            if (state.indentStack == null && stream.sol()) {
+                // update indentation, but only if indentStack is empty
+                state.indentation = stream.indentation();
+            }
+
+            // skip spaces
+            if (stream.eatSpace()) {
+                return null;
+            }
+            var returnType = null;
+
+            switch(state.mode){
+                case "string": // multi-line string parsing mode
+                    var next, escaped = false;
+                    while ((next = stream.next()) != null) {
+                        if (next == "\"" && !escaped) {
+
+                            state.mode = false;
+                            break;
+                        }
+                        escaped = !escaped && next == "\\";
+                    }
+                    returnType = STRING; // continue on in scheme-string mode
+                    break;
+                case "comment": // comment parsing mode
+                    var next, maybeEnd = false;
+                    while ((next = stream.next()) != null) {
+                        if (next == "#" && maybeEnd) {
+
+                            state.mode = false;
+                            break;
+                        }
+                        maybeEnd = (next == "|");
+                    }
+                    returnType = COMMENT;
+                    break;
+                case "s-expr-comment": // s-expr commenting mode
+                    state.mode = false;
+                    if(stream.peek() == "(" || stream.peek() == "["){
+                        // actually start scheme s-expr commenting mode
+                        state.sExprComment = 0;
+                    }else{
+                        // if not we just comment the entire of the next token
+                        stream.eatWhile(/[^/s]/); // eat non spaces
+                        returnType = COMMENT;
+                        break;
+                    }
+                default: // default parsing mode
+                    var ch = stream.next();
+
+                    if (ch == "\"") {
+                        state.mode = "string";
+                        returnType = STRING;
+
+                    } else if (ch == "'") {
+                        returnType = ATOM;
+                    } else if (ch == '#') {
+                        if (stream.eat("|")) {                    // Multi-line comment
+                            state.mode = "comment"; // toggle to comment mode
+                            returnType = COMMENT;
+                        } else if (stream.eat(/[tf]/i)) {            // #t/#f (atom)
+                            returnType = ATOM;
+                        } else if (stream.eat(';')) {                // S-Expr comment
+                            state.mode = "s-expr-comment";
+                            returnType = COMMENT;
+                        } else {
+                            var numTest = null, hasExactness = false, hasRadix = true;
+                            if (stream.eat(/[ei]/i)) {
+                                hasExactness = true;
+                            } else {
+                                stream.backUp(1);       // must be radix specifier
+                            }
+                            if (stream.match(/^#b/i)) {
+                                numTest = isBinaryNumber;
+                            } else if (stream.match(/^#o/i)) {
+                                numTest = isOctalNumber;
+                            } else if (stream.match(/^#x/i)) {
+                                numTest = isHexNumber;
+                            } else if (stream.match(/^#d/i)) {
+                                numTest = isDecimalNumber;
+                            } else if (stream.match(/^[-+0-9.]/, false)) {
+                                hasRadix = false;
+                                numTest = isDecimalNumber;
+                            // re-consume the intial # if all matches failed
+                            } else if (!hasExactness) {
+                                stream.eat('#');
+                            }
+                            if (numTest != null) {
+                                if (hasRadix && !hasExactness) {
+                                    // consume optional exactness after radix
+                                    stream.match(/^#[ei]/i);
+                                }
+                                if (numTest(stream))
+                                    returnType = NUMBER;
+                            }
+                        }
+                    } else if (/^[-+0-9.]/.test(ch) && isDecimalNumber(stream, true)) { // match non-prefixed number, must be decimal
+                        returnType = NUMBER;
+                    } else if (ch == ";") { // comment
+                        stream.skipToEnd(); // rest of the line is a comment
+                        returnType = COMMENT;
+                    } else if (ch == "(" || ch == "[") {
+                      var keyWord = ''; var indentTemp = stream.column(), letter;
+                        /**
+                        Either
+                        (indent-word ..
+                        (non-indent-word ..
+                        (;something else, bracket, etc.
+                        */
+
+                        while ((letter = stream.eat(/[^\s\(\[\;\)\]]/)) != null) {
+                            keyWord += letter;
+                        }
+
+                        if (keyWord.length > 0 && indentKeys.propertyIsEnumerable(keyWord)) { // indent-word
+
+                            pushStack(state, indentTemp + INDENT_WORD_SKIP, ch);
+                        } else { // non-indent word
+                            // we continue eating the spaces
+                            stream.eatSpace();
+                            if (stream.eol() || stream.peek() == ";") {
+                                // nothing significant after
+                                // we restart indentation 1 space after
+                                pushStack(state, indentTemp + 1, ch);
+                            } else {
+                                pushStack(state, indentTemp + stream.current().length, ch); // else we match
+                            }
+                        }
+                        stream.backUp(stream.current().length - 1); // undo all the eating
+
+                        if(typeof state.sExprComment == "number") state.sExprComment++;
+
+                        returnType = BRACKET;
+                    } else if (ch == ")" || ch == "]") {
+                        returnType = BRACKET;
+                        if (state.indentStack != null && state.indentStack.type == (ch == ")" ? "(" : "[")) {
+                            popStack(state);
+
+                            if(typeof state.sExprComment == "number"){
+                                if(--state.sExprComment == 0){
+                                    returnType = COMMENT; // final closing bracket
+                                    state.sExprComment = false; // turn off s-expr commenting mode
+                                }
+                            }
+                        }
+                    } else {
+                        stream.eatWhile(/[\w\$_\-!$%&*+\.\/:<=>?@\^~]/);
+
+                        if (keywords && keywords.propertyIsEnumerable(stream.current())) {
+                            returnType = BUILTIN;
+                        } else returnType = "variable";
+                    }
+            }
+            return (typeof state.sExprComment == "number") ? COMMENT : returnType;
+        },
+
+        indent: function (state) {
+            if (state.indentStack == null) return state.indentation;
+            return state.indentStack.indent;
+        },
+
+        closeBrackets: {pairs: "()[]{}\"\""},
+        lineComment: ";;"
+    };
+});
+
+CodeMirror.defineMIME("text/x-scheme", "scheme");
+
+});
diff --git a/public/codemirror/mode/shell/index.html b/public/codemirror/mode/shell/index.html
new file mode 100644
index 000000000..0b56300b1
--- /dev/null
+++ b/public/codemirror/mode/shell/index.html
@@ -0,0 +1,66 @@
+
+
+CodeMirror: Shell mode
+
+
+
+
+
+
+
+
+
+
+

+
Shell mode

+
+
+
+
+
+
+
MIME types defined: text/x-sh.

+

diff --git a/public/codemirror/mode/shell/shell.js b/public/codemirror/mode/shell/shell.js
new file mode 100644
index 000000000..76c67cd2b
--- /dev/null
+++ b/public/codemirror/mode/shell/shell.js
@@ -0,0 +1,143 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode('shell', function() {
+
+  var words = {};
+  function define(style, string) {
+    var split = string.split(' ');
+    for(var i = 0; i < split.length; i++) {
+      words[split[i]] = style;
+    }
+  };
+
+  // Atoms
+  define('atom', 'true false');
+
+  // Keywords
+  define('keyword', 'if then do else elif while until for in esac fi fin ' +
+    'fil done exit set unset export function');
+
+  // Commands
+  define('builtin', 'ab awk bash beep cat cc cd chown chmod chroot clear cp ' +
+    'curl cut diff echo find gawk gcc get git grep kill killall ln ls make ' +
+    'mkdir openssl mv nc node npm ping ps restart rm rmdir sed service sh ' +
+    'shopt shred source sort sleep ssh start stop su sudo tee telnet top ' +
+    'touch vi vim wall wc wget who write yes zsh');
+
+  function tokenBase(stream, state) {
+    if (stream.eatSpace()) return null;
+
+    var sol = stream.sol();
+    var ch = stream.next();
+
+    if (ch === '\\') {
+      stream.next();
+      return null;
+    }
+    if (ch === '\'' || ch === '"' || ch === '`') {
+      state.tokens.unshift(tokenString(ch, ch === "`" ? "quote" : "string"));
+      return tokenize(stream, state);
+    }
+    if (ch === '#') {
+      if (sol && stream.eat('!')) {
+        stream.skipToEnd();
+        return 'meta'; // 'comment'?
+      }
+      stream.skipToEnd();
+      return 'comment';
+    }
+    if (ch === '$') {
+      state.tokens.unshift(tokenDollar);
+      return tokenize(stream, state);
+    }
+    if (ch === '+' || ch === '=') {
+      return 'operator';
+    }
+    if (ch === '-') {
+      stream.eat('-');
+      stream.eatWhile(/\w/);
+      return 'attribute';
+    }
+    if (/\d/.test(ch)) {
+      stream.eatWhile(/\d/);
+      if(stream.eol() || !/\w/.test(stream.peek())) {
+        return 'number';
+      }
+    }
+    stream.eatWhile(/[\w-]/);
+    var cur = stream.current();
+    if (stream.peek() === '=' && /\w+/.test(cur)) return 'def';
+    return words.hasOwnProperty(cur) ? words[cur] : null;
+  }
+
+  function tokenString(quote, style) {
+    var close = quote == "(" ? ")" : quote
+    return function(stream, state) {
+      var next, end = false, escaped = false;
+      while ((next = stream.next()) != null) {
+        if (next === close && !escaped) {
+          end = true;
+          break;
+        }
+        if (next === '$' && !escaped && quote !== "'") {
+          escaped = true;
+          stream.backUp(1);
+          state.tokens.unshift(tokenDollar);
+          break;
+        }
+        if (!escaped && next === "(" && quote === "(") {
+          state.tokens.unshift(tokenString(quote, style))
+          return tokenize(stream, state)
+        }
+        escaped = !escaped && next === '\\';
+      }
+      if (end || !escaped) state.tokens.shift();
+      return style;
+    };
+  };
+
+  var tokenDollar = function(stream, state) {
+    if (state.tokens.length > 1) stream.eat('$');
+    var ch = stream.next(), hungry = /\w/;
+    if (ch === '{') hungry = /[^}]/;
+    if (/['"(]/.test(ch)) {
+      state.tokens[0] = tokenString(ch, ch == "(" ? "quote" : "string");
+      return tokenize(stream, state);
+    }
+    if (!/\d/.test(ch)) {
+      stream.eatWhile(hungry);
+      stream.eat('}');
+    }
+    state.tokens.shift();
+    return 'def';
+  };
+
+  function tokenize(stream, state) {
+    return (state.tokens[0] || tokenBase) (stream, state);
+  };
+
+  return {
+    startState: function() {return {tokens:[]};},
+    token: function(stream, state) {
+      return tokenize(stream, state);
+    },
+    closeBrackets: "()[]{}''\"\"``",
+    lineComment: '#',
+    fold: "brace"
+  };
+});
+
+CodeMirror.defineMIME('text/x-sh', 'shell');
+
+});
diff --git a/public/codemirror/mode/shell/test.js b/public/codemirror/mode/shell/test.js
new file mode 100644
index 000000000..e42dd1628
--- /dev/null
+++ b/public/codemirror/mode/shell/test.js
@@ -0,0 +1,61 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({}, "shell");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)); }
+
+  MT("var",
+     "text [def $var] text");
+  MT("varBraces",
+     "text[def ${var}]text");
+  MT("varVar",
+     "text [def $a$b] text");
+  MT("varBracesVarBraces",
+     "text[def ${a}${b}]text");
+
+  MT("singleQuotedVar",
+     "[string 'text $var text']");
+  MT("singleQuotedVarBraces",
+     "[string 'text ${var} text']");
+
+  MT("doubleQuotedVar",
+     '[string "text ][def $var][string  text"]');
+  MT("doubleQuotedVarBraces",
+     '[string "text][def ${var}][string text"]');
+  MT("doubleQuotedVarPunct",
+     '[string "text ][def $@][string  text"]');
+  MT("doubleQuotedVarVar",
+     '[string "][def $a$b][string "]');
+  MT("doubleQuotedVarBracesVarBraces",
+     '[string "][def ${a}${b}][string "]');
+
+  MT("notAString",
+     "text\\'text");
+  MT("escapes",
+     "outside\\'\\\"\\`\\\\[string \"inside\\`\\'\\\"\\\\`\\$notAVar\"]outside\\$\\(notASubShell\\)");
+
+  MT("subshell",
+     "[builtin echo] [quote $(whoami)] s log, stardate [quote `date`].");
+  MT("doubleQuotedSubshell",
+     "[builtin echo] [string \"][quote $(whoami)][string 's log, stardate `date`.\"]");
+
+  MT("hashbang",
+     "[meta #!/bin/bash]");
+  MT("comment",
+     "text [comment # Blurb]");
+
+  MT("numbers",
+     "[number 0] [number 1] [number 2]");
+  MT("keywords",
+     "[keyword while] [atom true]; [keyword do]",
+     "  [builtin sleep] [number 3]",
+     "[keyword done]");
+  MT("options",
+     "[builtin ls] [attribute -l] [attribute --human-readable]");
+  MT("operator",
+     "[def var][operator =]value");
+
+  MT("doubleParens",
+     "foo [quote $((bar))]")
+})();
diff --git a/public/codemirror/mode/sieve/index.html b/public/codemirror/mode/sieve/index.html
new file mode 100644
index 000000000..6f029b623
--- /dev/null
+++ b/public/codemirror/mode/sieve/index.html
@@ -0,0 +1,93 @@
+
+
+CodeMirror: Sieve (RFC5228) mode
+
+
+
+
+
+
+
+
+
+

+
Sieve (RFC5228) mode

+

+    
+
+    
MIME types defined: application/sieve.

+
+  

diff --git a/public/codemirror/mode/sieve/sieve.js b/public/codemirror/mode/sieve/sieve.js
new file mode 100644
index 000000000..f67db2f55
--- /dev/null
+++ b/public/codemirror/mode/sieve/sieve.js
@@ -0,0 +1,193 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("sieve", function(config) {
+  function words(str) {
+    var obj = {}, words = str.split(" ");
+    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+    return obj;
+  }
+
+  var keywords = words("if elsif else stop require");
+  var atoms = words("true false not");
+  var indentUnit = config.indentUnit;
+
+  function tokenBase(stream, state) {
+
+    var ch = stream.next();
+    if (ch == "/" && stream.eat("*")) {
+      state.tokenize = tokenCComment;
+      return tokenCComment(stream, state);
+    }
+
+    if (ch === '#') {
+      stream.skipToEnd();
+      return "comment";
+    }
+
+    if (ch == "\"") {
+      state.tokenize = tokenString(ch);
+      return state.tokenize(stream, state);
+    }
+
+    if (ch == "(") {
+      state._indent.push("(");
+      // add virtual angel wings so that editor behaves...
+      // ...more sane incase of broken brackets
+      state._indent.push("{");
+      return null;
+    }
+
+    if (ch === "{") {
+      state._indent.push("{");
+      return null;
+    }
+
+    if (ch == ")")  {
+      state._indent.pop();
+      state._indent.pop();
+    }
+
+    if (ch === "}") {
+      state._indent.pop();
+      return null;
+    }
+
+    if (ch == ",")
+      return null;
+
+    if (ch == ";")
+      return null;
+
+
+    if (/[{}\(\),;]/.test(ch))
+      return null;
+
+    // 1*DIGIT "K" / "M" / "G"
+    if (/\d/.test(ch)) {
+      stream.eatWhile(/[\d]/);
+      stream.eat(/[KkMmGg]/);
+      return "number";
+    }
+
+    // ":" (ALPHA / "_") *(ALPHA / DIGIT / "_")
+    if (ch == ":") {
+      stream.eatWhile(/[a-zA-Z_]/);
+      stream.eatWhile(/[a-zA-Z0-9_]/);
+
+      return "operator";
+    }
+
+    stream.eatWhile(/\w/);
+    var cur = stream.current();
+
+    // "text:" *(SP / HTAB) (hash-comment / CRLF)
+    // *(multiline-literal / multiline-dotstart)
+    // "." CRLF
+    if ((cur == "text") && stream.eat(":"))
+    {
+      state.tokenize = tokenMultiLineString;
+      return "string";
+    }
+
+    if (keywords.propertyIsEnumerable(cur))
+      return "keyword";
+
+    if (atoms.propertyIsEnumerable(cur))
+      return "atom";
+
+    return null;
+  }
+
+  function tokenMultiLineString(stream, state)
+  {
+    state._multiLineString = true;
+    // the first line is special it may contain a comment
+    if (!stream.sol()) {
+      stream.eatSpace();
+
+      if (stream.peek() == "#") {
+        stream.skipToEnd();
+        return "comment";
+      }
+
+      stream.skipToEnd();
+      return "string";
+    }
+
+    if ((stream.next() == ".")  && (stream.eol()))
+    {
+      state._multiLineString = false;
+      state.tokenize = tokenBase;
+    }
+
+    return "string";
+  }
+
+  function tokenCComment(stream, state) {
+    var maybeEnd = false, ch;
+    while ((ch = stream.next()) != null) {
+      if (maybeEnd && ch == "/") {
+        state.tokenize = tokenBase;
+        break;
+      }
+      maybeEnd = (ch == "*");
+    }
+    return "comment";
+  }
+
+  function tokenString(quote) {
+    return function(stream, state) {
+      var escaped = false, ch;
+      while ((ch = stream.next()) != null) {
+        if (ch == quote && !escaped)
+          break;
+        escaped = !escaped && ch == "\\";
+      }
+      if (!escaped) state.tokenize = tokenBase;
+      return "string";
+    };
+  }
+
+  return {
+    startState: function(base) {
+      return {tokenize: tokenBase,
+              baseIndent: base || 0,
+              _indent: []};
+    },
+
+    token: function(stream, state) {
+      if (stream.eatSpace())
+        return null;
+
+      return (state.tokenize || tokenBase)(stream, state);;
+    },
+
+    indent: function(state, _textAfter) {
+      var length = state._indent.length;
+      if (_textAfter && (_textAfter[0] == "}"))
+        length--;
+
+      if (length <0)
+        length = 0;
+
+      return length * indentUnit;
+    },
+
+    electricChars: "}"
+  };
+});
+
+CodeMirror.defineMIME("application/sieve", "sieve");
+
+});
diff --git a/public/codemirror/mode/slim/index.html b/public/codemirror/mode/slim/index.html
new file mode 100644
index 000000000..7fa4e50df
--- /dev/null
+++ b/public/codemirror/mode/slim/index.html
@@ -0,0 +1,96 @@
+
+
+CodeMirror: SLIM mode
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

+  
SLIM mode

+  

+  
+
+  
MIME types defined: application/x-slim.

+
+  

+    Parsing/Highlighting Tests:
+    normal,
+    verbose.
+  

+

diff --git a/public/codemirror/mode/slim/slim.js b/public/codemirror/mode/slim/slim.js
new file mode 100644
index 000000000..991a97efc
--- /dev/null
+++ b/public/codemirror/mode/slim/slim.js
@@ -0,0 +1,575 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// Slim Highlighting for CodeMirror copyright (c) HicknHack Software Gmbh
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../htmlmixed/htmlmixed"), require("../ruby/ruby"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../htmlmixed/htmlmixed", "../ruby/ruby"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+  CodeMirror.defineMode("slim", function(config) {
+    var htmlMode = CodeMirror.getMode(config, {name: "htmlmixed"});
+    var rubyMode = CodeMirror.getMode(config, "ruby");
+    var modes = { html: htmlMode, ruby: rubyMode };
+    var embedded = {
+      ruby: "ruby",
+      javascript: "javascript",
+      css: "text/css",
+      sass: "text/x-sass",
+      scss: "text/x-scss",
+      less: "text/x-less",
+      styl: "text/x-styl", // no highlighting so far
+      coffee: "coffeescript",
+      asciidoc: "text/x-asciidoc",
+      markdown: "text/x-markdown",
+      textile: "text/x-textile", // no highlighting so far
+      creole: "text/x-creole", // no highlighting so far
+      wiki: "text/x-wiki", // no highlighting so far
+      mediawiki: "text/x-mediawiki", // no highlighting so far
+      rdoc: "text/x-rdoc", // no highlighting so far
+      builder: "text/x-builder", // no highlighting so far
+      nokogiri: "text/x-nokogiri", // no highlighting so far
+      erb: "application/x-erb"
+    };
+    var embeddedRegexp = function(map){
+      var arr = [];
+      for(var key in map) arr.push(key);
+      return new RegExp("^("+arr.join('|')+"):");
+    }(embedded);
+
+    var styleMap = {
+      "commentLine": "comment",
+      "slimSwitch": "operator special",
+      "slimTag": "tag",
+      "slimId": "attribute def",
+      "slimClass": "attribute qualifier",
+      "slimAttribute": "attribute",
+      "slimSubmode": "keyword special",
+      "closeAttributeTag": null,
+      "slimDoctype": null,
+      "lineContinuation": null
+    };
+    var closing = {
+      "{": "}",
+      "[": "]",
+      "(": ")"
+    };
+
+    var nameStartChar = "_a-zA-Z\xC0-\xD6\xD8-\xF6\xF8-\u02FF\u0370-\u037D\u037F-\u1FFF\u200C-\u200D\u2070-\u218F\u2C00-\u2FEF\u3001-\uD7FF\uF900-\uFDCF\uFDF0-\uFFFD";
+    var nameChar = nameStartChar + "\\-0-9\xB7\u0300-\u036F\u203F-\u2040";
+    var nameRegexp = new RegExp("^[:"+nameStartChar+"](?::["+nameChar+"]|["+nameChar+"]*)");
+    var attributeNameRegexp = new RegExp("^[:"+nameStartChar+"][:\\."+nameChar+"]*(?=\\s*=)");
+    var wrappedAttributeNameRegexp = new RegExp("^[:"+nameStartChar+"][:\\."+nameChar+"]*");
+    var classNameRegexp = /^\.-?[_a-zA-Z]+[\w\-]*/;
+    var classIdRegexp = /^#[_a-zA-Z]+[\w\-]*/;
+
+    function backup(pos, tokenize, style) {
+      var restore = function(stream, state) {
+        state.tokenize = tokenize;
+        if (stream.pos < pos) {
+          stream.pos = pos;
+          return style;
+        }
+        return state.tokenize(stream, state);
+      };
+      return function(stream, state) {
+        state.tokenize = restore;
+        return tokenize(stream, state);
+      };
+    }
+
+    function maybeBackup(stream, state, pat, offset, style) {
+      var cur = stream.current();
+      var idx = cur.search(pat);
+      if (idx > -1) {
+        state.tokenize = backup(stream.pos, state.tokenize, style);
+        stream.backUp(cur.length - idx - offset);
+      }
+      return style;
+    }
+
+    function continueLine(state, column) {
+      state.stack = {
+        parent: state.stack,
+        style: "continuation",
+        indented: column,
+        tokenize: state.line
+      };
+      state.line = state.tokenize;
+    }
+    function finishContinue(state) {
+      if (state.line == state.tokenize) {
+        state.line = state.stack.tokenize;
+        state.stack = state.stack.parent;
+      }
+    }
+
+    function lineContinuable(column, tokenize) {
+      return function(stream, state) {
+        finishContinue(state);
+        if (stream.match(/^\\$/)) {
+          continueLine(state, column);
+          return "lineContinuation";
+        }
+        var style = tokenize(stream, state);
+        if (stream.eol() && stream.current().match(/(?:^|[^\\])(?:\\\\)*\\$/)) {
+          stream.backUp(1);
+        }
+        return style;
+      };
+    }
+    function commaContinuable(column, tokenize) {
+      return function(stream, state) {
+        finishContinue(state);
+        var style = tokenize(stream, state);
+        if (stream.eol() && stream.current().match(/,$/)) {
+          continueLine(state, column);
+        }
+        return style;
+      };
+    }
+
+    function rubyInQuote(endQuote, tokenize) {
+      // TODO: add multi line support
+      return function(stream, state) {
+        var ch = stream.peek();
+        if (ch == endQuote && state.rubyState.tokenize.length == 1) {
+          // step out of ruby context as it seems to complete processing all the braces
+          stream.next();
+          state.tokenize = tokenize;
+          return "closeAttributeTag";
+        } else {
+          return ruby(stream, state);
+        }
+      };
+    }
+    function startRubySplat(tokenize) {
+      var rubyState;
+      var runSplat = function(stream, state) {
+        if (state.rubyState.tokenize.length == 1 && !state.rubyState.context.prev) {
+          stream.backUp(1);
+          if (stream.eatSpace()) {
+            state.rubyState = rubyState;
+            state.tokenize = tokenize;
+            return tokenize(stream, state);
+          }
+          stream.next();
+        }
+        return ruby(stream, state);
+      };
+      return function(stream, state) {
+        rubyState = state.rubyState;
+        state.rubyState = CodeMirror.startState(rubyMode);
+        state.tokenize = runSplat;
+        return ruby(stream, state);
+      };
+    }
+
+    function ruby(stream, state) {
+      return rubyMode.token(stream, state.rubyState);
+    }
+
+    function htmlLine(stream, state) {
+      if (stream.match(/^\\$/)) {
+        return "lineContinuation";
+      }
+      return html(stream, state);
+    }
+    function html(stream, state) {
+      if (stream.match(/^#\{/)) {
+        state.tokenize = rubyInQuote("}", state.tokenize);
+        return null;
+      }
+      return maybeBackup(stream, state, /[^\\]#\{/, 1, htmlMode.token(stream, state.htmlState));
+    }
+
+    function startHtmlLine(lastTokenize) {
+      return function(stream, state) {
+        var style = htmlLine(stream, state);
+        if (stream.eol()) state.tokenize = lastTokenize;
+        return style;
+      };
+    }
+
+    function startHtmlMode(stream, state, offset) {
+      state.stack = {
+        parent: state.stack,
+        style: "html",
+        indented: stream.column() + offset, // pipe + space
+        tokenize: state.line
+      };
+      state.line = state.tokenize = html;
+      return null;
+    }
+
+    function comment(stream, state) {
+      stream.skipToEnd();
+      return state.stack.style;
+    }
+
+    function commentMode(stream, state) {
+      state.stack = {
+        parent: state.stack,
+        style: "comment",
+        indented: state.indented + 1,
+        tokenize: state.line
+      };
+      state.line = comment;
+      return comment(stream, state);
+    }
+
+    function attributeWrapper(stream, state) {
+      if (stream.eat(state.stack.endQuote)) {
+        state.line = state.stack.line;
+        state.tokenize = state.stack.tokenize;
+        state.stack = state.stack.parent;
+        return null;
+      }
+      if (stream.match(wrappedAttributeNameRegexp)) {
+        state.tokenize = attributeWrapperAssign;
+        return "slimAttribute";
+      }
+      stream.next();
+      return null;
+    }
+    function attributeWrapperAssign(stream, state) {
+      if (stream.match(/^==?/)) {
+        state.tokenize = attributeWrapperValue;
+        return null;
+      }
+      return attributeWrapper(stream, state);
+    }
+    function attributeWrapperValue(stream, state) {
+      var ch = stream.peek();
+      if (ch == '"' || ch == "\'") {
+        state.tokenize = readQuoted(ch, "string", true, false, attributeWrapper);
+        stream.next();
+        return state.tokenize(stream, state);
+      }
+      if (ch == '[') {
+        return startRubySplat(attributeWrapper)(stream, state);
+      }
+      if (stream.match(/^(true|false|nil)\b/)) {
+        state.tokenize = attributeWrapper;
+        return "keyword";
+      }
+      return startRubySplat(attributeWrapper)(stream, state);
+    }
+
+    function startAttributeWrapperMode(state, endQuote, tokenize) {
+      state.stack = {
+        parent: state.stack,
+        style: "wrapper",
+        indented: state.indented + 1,
+        tokenize: tokenize,
+        line: state.line,
+        endQuote: endQuote
+      };
+      state.line = state.tokenize = attributeWrapper;
+      return null;
+    }
+
+    function sub(stream, state) {
+      if (stream.match(/^#\{/)) {
+        state.tokenize = rubyInQuote("}", state.tokenize);
+        return null;
+      }
+      var subStream = new CodeMirror.StringStream(stream.string.slice(state.stack.indented), stream.tabSize);
+      subStream.pos = stream.pos - state.stack.indented;
+      subStream.start = stream.start - state.stack.indented;
+      subStream.lastColumnPos = stream.lastColumnPos - state.stack.indented;
+      subStream.lastColumnValue = stream.lastColumnValue - state.stack.indented;
+      var style = state.subMode.token(subStream, state.subState);
+      stream.pos = subStream.pos + state.stack.indented;
+      return style;
+    }
+    function firstSub(stream, state) {
+      state.stack.indented = stream.column();
+      state.line = state.tokenize = sub;
+      return state.tokenize(stream, state);
+    }
+
+    function createMode(mode) {
+      var query = embedded[mode];
+      var spec = CodeMirror.mimeModes[query];
+      if (spec) {
+        return CodeMirror.getMode(config, spec);
+      }
+      var factory = CodeMirror.modes[query];
+      if (factory) {
+        return factory(config, {name: query});
+      }
+      return CodeMirror.getMode(config, "null");
+    }
+
+    function getMode(mode) {
+      if (!modes.hasOwnProperty(mode)) {
+        return modes[mode] = createMode(mode);
+      }
+      return modes[mode];
+    }
+
+    function startSubMode(mode, state) {
+      var subMode = getMode(mode);
+      var subState = CodeMirror.startState(subMode);
+
+      state.subMode = subMode;
+      state.subState = subState;
+
+      state.stack = {
+        parent: state.stack,
+        style: "sub",
+        indented: state.indented + 1,
+        tokenize: state.line
+      };
+      state.line = state.tokenize = firstSub;
+      return "slimSubmode";
+    }
+
+    function doctypeLine(stream, _state) {
+      stream.skipToEnd();
+      return "slimDoctype";
+    }
+
+    function startLine(stream, state) {
+      var ch = stream.peek();
+      if (ch == '<') {
+        return (state.tokenize = startHtmlLine(state.tokenize))(stream, state);
+      }
+      if (stream.match(/^[|']/)) {
+        return startHtmlMode(stream, state, 1);
+      }
+      if (stream.match(/^\/(!|\[\w+])?/)) {
+        return commentMode(stream, state);
+      }
+      if (stream.match(/^(-|==?[<>]?)/)) {
+        state.tokenize = lineContinuable(stream.column(), commaContinuable(stream.column(), ruby));
+        return "slimSwitch";
+      }
+      if (stream.match(/^doctype\b/)) {
+        state.tokenize = doctypeLine;
+        return "keyword";
+      }
+
+      var m = stream.match(embeddedRegexp);
+      if (m) {
+        return startSubMode(m[1], state);
+      }
+
+      return slimTag(stream, state);
+    }
+
+    function slim(stream, state) {
+      if (state.startOfLine) {
+        return startLine(stream, state);
+      }
+      return slimTag(stream, state);
+    }
+
+    function slimTag(stream, state) {
+      if (stream.eat('*')) {
+        state.tokenize = startRubySplat(slimTagExtras);
+        return null;
+      }
+      if (stream.match(nameRegexp)) {
+        state.tokenize = slimTagExtras;
+        return "slimTag";
+      }
+      return slimClass(stream, state);
+    }
+    function slimTagExtras(stream, state) {
+      if (stream.match(/^(<>?|> state.indented && state.last != "slimSubmode") {
+            state.line = state.tokenize = state.stack.tokenize;
+            state.stack = state.stack.parent;
+            state.subMode = null;
+            state.subState = null;
+          }
+        }
+        if (stream.eatSpace()) return null;
+        var style = state.tokenize(stream, state);
+        state.startOfLine = false;
+        if (style) state.last = style;
+        return styleMap.hasOwnProperty(style) ? styleMap[style] : style;
+      },
+
+      blankLine: function(state) {
+        if (state.subMode && state.subMode.blankLine) {
+          return state.subMode.blankLine(state.subState);
+        }
+      },
+
+      innerMode: function(state) {
+        if (state.subMode) return {state: state.subState, mode: state.subMode};
+        return {state: state, mode: mode};
+      }
+
+      //indent: function(state) {
+      //  return state.indented;
+      //}
+    };
+    return mode;
+  }, "htmlmixed", "ruby");
+
+  CodeMirror.defineMIME("text/x-slim", "slim");
+  CodeMirror.defineMIME("application/x-slim", "slim");
+});
diff --git a/public/codemirror/mode/slim/test.js b/public/codemirror/mode/slim/test.js
new file mode 100644
index 000000000..be4ddacb6
--- /dev/null
+++ b/public/codemirror/mode/slim/test.js
@@ -0,0 +1,96 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// Slim Highlighting for CodeMirror copyright (c) HicknHack Software Gmbh
+
+(function() {
+  var mode = CodeMirror.getMode({tabSize: 4, indentUnit: 2}, "slim");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)); }
+
+  // Requires at least one media query
+  MT("elementName",
+     "[tag h1] Hey There");
+
+  MT("oneElementPerLine",
+     "[tag h1] Hey There .h2");
+
+  MT("idShortcut",
+     "[attribute&def #test] Hey There");
+
+  MT("tagWithIdShortcuts",
+     "[tag h1][attribute&def #test] Hey There");
+
+  MT("classShortcut",
+     "[attribute&qualifier .hello] Hey There");
+
+  MT("tagWithIdAndClassShortcuts",
+     "[tag h1][attribute&def #test][attribute&qualifier .hello] Hey There");
+
+  MT("docType",
+     "[keyword doctype] xml");
+
+  MT("comment",
+     "[comment / Hello WORLD]");
+
+  MT("notComment",
+     "[tag h1] This is not a / comment ");
+
+  MT("attributes",
+     "[tag a]([attribute title]=[string \"test\"]) [attribute href]=[string \"link\"]}");
+
+  MT("multiLineAttributes",
+     "[tag a]([attribute title]=[string \"test\"]",
+     "  ) [attribute href]=[string \"link\"]}");
+
+  MT("htmlCode",
+     "[tag&bracket <][tag h1][tag&bracket >]Title[tag&bracket ]");
+
+  MT("rubyBlock",
+     "[operator&special =][variable-2 @item]");
+
+  MT("selectorRubyBlock",
+     "[tag a][attribute&qualifier .test][operator&special =] [variable-2 @item]");
+
+  MT("nestedRubyBlock",
+      "[tag a]",
+      "  [operator&special =][variable puts] [string \"test\"]");
+
+  MT("multilinePlaintext",
+      "[tag p]",
+      "  | Hello,",
+      "    World");
+
+  MT("multilineRuby",
+      "[tag p]",
+      "  [comment /# this is a comment]",
+      "     [comment and this is a comment too]",
+      "  | Date/Time",
+      "  [operator&special -] [variable now] [operator =] [tag DateTime][operator .][property now]",
+      "  [tag strong][operator&special =] [variable now]",
+      "  [operator&special -] [keyword if] [variable now] [operator >] [tag DateTime][operator .][property parse]([string \"December 31, 2006\"])",
+      "     [operator&special =][string \"Happy\"]",
+      "     [operator&special =][string \"Belated\"]",
+      "     [operator&special =][string \"Birthday\"]");
+
+  MT("multilineComment",
+      "[comment /]",
+      "  [comment Multiline]",
+      "  [comment Comment]");
+
+  MT("hamlAfterRubyTag",
+    "[attribute&qualifier .block]",
+    "  [tag strong][operator&special =] [variable now]",
+    "  [attribute&qualifier .test]",
+    "     [operator&special =][variable now]",
+    "  [attribute&qualifier .right]");
+
+  MT("stretchedRuby",
+     "[operator&special =] [variable puts] [string \"Hello\"],",
+     "   [string \"World\"]");
+
+  MT("interpolationInHashAttribute",
+     "[tag div]{[attribute id] = [string \"]#{[variable test]}[string _]#{[variable ting]}[string \"]} test");
+
+  MT("interpolationInHTMLAttribute",
+     "[tag div]([attribute title]=[string \"]#{[variable test]}[string _]#{[variable ting]()}[string \"]) Test");
+})();
diff --git a/public/codemirror/mode/smalltalk/index.html b/public/codemirror/mode/smalltalk/index.html
new file mode 100644
index 000000000..2155ebc2a
--- /dev/null
+++ b/public/codemirror/mode/smalltalk/index.html
@@ -0,0 +1,68 @@
+
+
+CodeMirror: Smalltalk mode
+
+
+
+
+
+
+
+
+
+
+

+
Smalltalk mode

+

+
+    
+
+    
Simple Smalltalk mode.

+
+    
MIME types defined: text/x-stsrc.

+  

diff --git a/public/codemirror/mode/smalltalk/smalltalk.js b/public/codemirror/mode/smalltalk/smalltalk.js
new file mode 100644
index 000000000..bb510ba2e
--- /dev/null
+++ b/public/codemirror/mode/smalltalk/smalltalk.js
@@ -0,0 +1,168 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode('smalltalk', function(config) {
+
+  var specialChars = /[+\-\/\\*~<>=@%|&?!.,:;^]/;
+  var keywords = /true|false|nil|self|super|thisContext/;
+
+  var Context = function(tokenizer, parent) {
+    this.next = tokenizer;
+    this.parent = parent;
+  };
+
+  var Token = function(name, context, eos) {
+    this.name = name;
+    this.context = context;
+    this.eos = eos;
+  };
+
+  var State = function() {
+    this.context = new Context(next, null);
+    this.expectVariable = true;
+    this.indentation = 0;
+    this.userIndentationDelta = 0;
+  };
+
+  State.prototype.userIndent = function(indentation) {
+    this.userIndentationDelta = indentation > 0 ? (indentation / config.indentUnit - this.indentation) : 0;
+  };
+
+  var next = function(stream, context, state) {
+    var token = new Token(null, context, false);
+    var aChar = stream.next();
+
+    if (aChar === '"') {
+      token = nextComment(stream, new Context(nextComment, context));
+
+    } else if (aChar === '\'') {
+      token = nextString(stream, new Context(nextString, context));
+
+    } else if (aChar === '#') {
+      if (stream.peek() === '\'') {
+        stream.next();
+        token = nextSymbol(stream, new Context(nextSymbol, context));
+      } else {
+        if (stream.eatWhile(/[^\s.{}\[\]()]/))
+          token.name = 'string-2';
+        else
+          token.name = 'meta';
+      }
+
+    } else if (aChar === '$') {
+      if (stream.next() === '<') {
+        stream.eatWhile(/[^\s>]/);
+        stream.next();
+      }
+      token.name = 'string-2';
+
+    } else if (aChar === '|' && state.expectVariable) {
+      token.context = new Context(nextTemporaries, context);
+
+    } else if (/[\[\]{}()]/.test(aChar)) {
+      token.name = 'bracket';
+      token.eos = /[\[{(]/.test(aChar);
+
+      if (aChar === '[') {
+        state.indentation++;
+      } else if (aChar === ']') {
+        state.indentation = Math.max(0, state.indentation - 1);
+      }
+
+    } else if (specialChars.test(aChar)) {
+      stream.eatWhile(specialChars);
+      token.name = 'operator';
+      token.eos = aChar !== ';'; // ; cascaded message expression
+
+    } else if (/\d/.test(aChar)) {
+      stream.eatWhile(/[\w\d]/);
+      token.name = 'number';
+
+    } else if (/[\w_]/.test(aChar)) {
+      stream.eatWhile(/[\w\d_]/);
+      token.name = state.expectVariable ? (keywords.test(stream.current()) ? 'keyword' : 'variable') : null;
+
+    } else {
+      token.eos = state.expectVariable;
+    }
+
+    return token;
+  };
+
+  var nextComment = function(stream, context) {
+    stream.eatWhile(/[^"]/);
+    return new Token('comment', stream.eat('"') ? context.parent : context, true);
+  };
+
+  var nextString = function(stream, context) {
+    stream.eatWhile(/[^']/);
+    return new Token('string', stream.eat('\'') ? context.parent : context, false);
+  };
+
+  var nextSymbol = function(stream, context) {
+    stream.eatWhile(/[^']/);
+    return new Token('string-2', stream.eat('\'') ? context.parent : context, false);
+  };
+
+  var nextTemporaries = function(stream, context) {
+    var token = new Token(null, context, false);
+    var aChar = stream.next();
+
+    if (aChar === '|') {
+      token.context = context.parent;
+      token.eos = true;
+
+    } else {
+      stream.eatWhile(/[^|]/);
+      token.name = 'variable';
+    }
+
+    return token;
+  };
+
+  return {
+    startState: function() {
+      return new State;
+    },
+
+    token: function(stream, state) {
+      state.userIndent(stream.indentation());
+
+      if (stream.eatSpace()) {
+        return null;
+      }
+
+      var token = state.context.next(stream, state.context, state);
+      state.context = token.context;
+      state.expectVariable = token.eos;
+
+      return token.name;
+    },
+
+    blankLine: function(state) {
+      state.userIndent(0);
+    },
+
+    indent: function(state, textAfter) {
+      var i = state.context.next === next && textAfter && textAfter.charAt(0) === ']' ? -1 : state.userIndentationDelta;
+      return (state.indentation + i) * config.indentUnit;
+    },
+
+    electricChars: ']'
+  };
+
+});
+
+CodeMirror.defineMIME('text/x-stsrc', {name: 'smalltalk'});
+
+});
diff --git a/public/codemirror/mode/smarty/index.html b/public/codemirror/mode/smarty/index.html
new file mode 100644
index 000000000..b19c8f09b
--- /dev/null
+++ b/public/codemirror/mode/smarty/index.html
@@ -0,0 +1,138 @@
+
+
+CodeMirror: Smarty mode
+
+
+
+
+
+
+
+
+
+
+

+
Smarty mode

+

+
+
Mode for Smarty version 2 or 3, which allows for custom delimiter tags.

+
+
Several configuration parameters are supported:

+
+
    
+  
  • leftDelimiter and rightDelimiter,
+  which should be strings that determine where the Smarty syntax
+  starts and ends.
    • 
+  
  • version, which should be 2 or 3.
    • 
+  
  • baseMode, which can be a mode spec
+  like "text/html" to set a different background mode.
    • 
+

+
+
MIME types defined: text/x-smarty

+
+
Smarty 2, custom delimiters

+
+

+
+
Smarty 3

+
+
+
+
+
+

diff --git a/public/codemirror/mode/smarty/smarty.js b/public/codemirror/mode/smarty/smarty.js
new file mode 100644
index 000000000..6e0fbed42
--- /dev/null
+++ b/public/codemirror/mode/smarty/smarty.js
@@ -0,0 +1,225 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+/**
+ * Smarty 2 and 3 mode.
+ */
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineMode("smarty", function(config, parserConf) {
+    var rightDelimiter = parserConf.rightDelimiter || "}";
+    var leftDelimiter = parserConf.leftDelimiter || "{";
+    var version = parserConf.version || 2;
+    var baseMode = CodeMirror.getMode(config, parserConf.baseMode || "null");
+
+    var keyFunctions = ["debug", "extends", "function", "include", "literal"];
+    var regs = {
+      operatorChars: /[+\-*&%=<>!?]/,
+      validIdentifier: /[a-zA-Z0-9_]/,
+      stringChar: /['"]/
+    };
+
+    var last;
+    function cont(style, lastType) {
+      last = lastType;
+      return style;
+    }
+
+    function chain(stream, state, parser) {
+      state.tokenize = parser;
+      return parser(stream, state);
+    }
+
+    // Smarty 3 allows { and } surrounded by whitespace to NOT slip into Smarty mode
+    function doesNotCount(stream, pos) {
+      if (pos == null) pos = stream.pos;
+      return version === 3 && leftDelimiter == "{" &&
+        (pos == stream.string.length || /\s/.test(stream.string.charAt(pos)));
+    }
+
+    function tokenTop(stream, state) {
+      var string = stream.string;
+      for (var scan = stream.pos;;) {
+        var nextMatch = string.indexOf(leftDelimiter, scan);
+        scan = nextMatch + leftDelimiter.length;
+        if (nextMatch == -1 || !doesNotCount(stream, nextMatch + leftDelimiter.length)) break;
+      }
+      if (nextMatch == stream.pos) {
+        stream.match(leftDelimiter);
+        if (stream.eat("*")) {
+          return chain(stream, state, tokenBlock("comment", "*" + rightDelimiter));
+        } else {
+          state.depth++;
+          state.tokenize = tokenSmarty;
+          last = "startTag";
+          return "tag";
+        }
+      }
+
+      if (nextMatch > -1) stream.string = string.slice(0, nextMatch);
+      var token = baseMode.token(stream, state.base);
+      if (nextMatch > -1) stream.string = string;
+      return token;
+    }
+
+    // parsing Smarty content
+    function tokenSmarty(stream, state) {
+      if (stream.match(rightDelimiter, true)) {
+        if (version === 3) {
+          state.depth--;
+          if (state.depth <= 0) {
+            state.tokenize = tokenTop;
+          }
+        } else {
+          state.tokenize = tokenTop;
+        }
+        return cont("tag", null);
+      }
+
+      if (stream.match(leftDelimiter, true)) {
+        state.depth++;
+        return cont("tag", "startTag");
+      }
+
+      var ch = stream.next();
+      if (ch == "$") {
+        stream.eatWhile(regs.validIdentifier);
+        return cont("variable-2", "variable");
+      } else if (ch == "|") {
+        return cont("operator", "pipe");
+      } else if (ch == ".") {
+        return cont("operator", "property");
+      } else if (regs.stringChar.test(ch)) {
+        state.tokenize = tokenAttribute(ch);
+        return cont("string", "string");
+      } else if (regs.operatorChars.test(ch)) {
+        stream.eatWhile(regs.operatorChars);
+        return cont("operator", "operator");
+      } else if (ch == "[" || ch == "]") {
+        return cont("bracket", "bracket");
+      } else if (ch == "(" || ch == ")") {
+        return cont("bracket", "operator");
+      } else if (/\d/.test(ch)) {
+        stream.eatWhile(/\d/);
+        return cont("number", "number");
+      } else {
+
+        if (state.last == "variable") {
+          if (ch == "@") {
+            stream.eatWhile(regs.validIdentifier);
+            return cont("property", "property");
+          } else if (ch == "|") {
+            stream.eatWhile(regs.validIdentifier);
+            return cont("qualifier", "modifier");
+          }
+        } else if (state.last == "pipe") {
+          stream.eatWhile(regs.validIdentifier);
+          return cont("qualifier", "modifier");
+        } else if (state.last == "whitespace") {
+          stream.eatWhile(regs.validIdentifier);
+          return cont("attribute", "modifier");
+        } if (state.last == "property") {
+          stream.eatWhile(regs.validIdentifier);
+          return cont("property", null);
+        } else if (/\s/.test(ch)) {
+          last = "whitespace";
+          return null;
+        }
+
+        var str = "";
+        if (ch != "/") {
+          str += ch;
+        }
+        var c = null;
+        while (c = stream.eat(regs.validIdentifier)) {
+          str += c;
+        }
+        for (var i=0, j=keyFunctions.length; i
+
+CodeMirror: Solr mode
+
+
+
+
+
+
+
+
+
+

+  
Solr mode

+
+  

+    
+  

+
+  
+
+  
MIME types defined: text/x-solr.

+

diff --git a/public/codemirror/mode/solr/solr.js b/public/codemirror/mode/solr/solr.js
new file mode 100644
index 000000000..f7f708789
--- /dev/null
+++ b/public/codemirror/mode/solr/solr.js
@@ -0,0 +1,104 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("solr", function() {
+  "use strict";
+
+  var isStringChar = /[^\s\|\!\+\-\*\?\~\^\&\:\(\)\[\]\{\}\^\"\\]/;
+  var isOperatorChar = /[\|\!\+\-\*\?\~\^\&]/;
+  var isOperatorString = /^(OR|AND|NOT|TO)$/i;
+
+  function isNumber(word) {
+    return parseFloat(word, 10).toString() === word;
+  }
+
+  function tokenString(quote) {
+    return function(stream, state) {
+      var escaped = false, next;
+      while ((next = stream.next()) != null) {
+        if (next == quote && !escaped) break;
+        escaped = !escaped && next == "\\";
+      }
+
+      if (!escaped) state.tokenize = tokenBase;
+      return "string";
+    };
+  }
+
+  function tokenOperator(operator) {
+    return function(stream, state) {
+      var style = "operator";
+      if (operator == "+")
+        style += " positive";
+      else if (operator == "-")
+        style += " negative";
+      else if (operator == "|")
+        stream.eat(/\|/);
+      else if (operator == "&")
+        stream.eat(/\&/);
+      else if (operator == "^")
+        style += " boost";
+
+      state.tokenize = tokenBase;
+      return style;
+    };
+  }
+
+  function tokenWord(ch) {
+    return function(stream, state) {
+      var word = ch;
+      while ((ch = stream.peek()) && ch.match(isStringChar) != null) {
+        word += stream.next();
+      }
+
+      state.tokenize = tokenBase;
+      if (isOperatorString.test(word))
+        return "operator";
+      else if (isNumber(word))
+        return "number";
+      else if (stream.peek() == ":")
+        return "field";
+      else
+        return "string";
+    };
+  }
+
+  function tokenBase(stream, state) {
+    var ch = stream.next();
+    if (ch == '"')
+      state.tokenize = tokenString(ch);
+    else if (isOperatorChar.test(ch))
+      state.tokenize = tokenOperator(ch);
+    else if (isStringChar.test(ch))
+      state.tokenize = tokenWord(ch);
+
+    return (state.tokenize != tokenBase) ? state.tokenize(stream, state) : null;
+  }
+
+  return {
+    startState: function() {
+      return {
+        tokenize: tokenBase
+      };
+    },
+
+    token: function(stream, state) {
+      if (stream.eatSpace()) return null;
+      return state.tokenize(stream, state);
+    }
+  };
+});
+
+CodeMirror.defineMIME("text/x-solr", "solr");
+
+});
diff --git a/public/codemirror/mode/soy/index.html b/public/codemirror/mode/soy/index.html
new file mode 100644
index 000000000..f0216f097
--- /dev/null
+++ b/public/codemirror/mode/soy/index.html
@@ -0,0 +1,68 @@
+
+
+CodeMirror: Soy (Closure Template) mode
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

+
Soy (Closure Template) mode

+

+
+    
+
+    
A mode for Closure Templates (Soy).

+    
MIME type defined: text/x-soy.

+  

diff --git a/public/codemirror/mode/soy/soy.js b/public/codemirror/mode/soy/soy.js
new file mode 100644
index 000000000..cff7719b8
--- /dev/null
+++ b/public/codemirror/mode/soy/soy.js
@@ -0,0 +1,325 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../htmlmixed/htmlmixed"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../htmlmixed/htmlmixed"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  var indentingTags = ["template", "literal", "msg", "fallbackmsg", "let", "if", "elseif",
+                       "else", "switch", "case", "default", "foreach", "ifempty", "for",
+                       "call", "param", "deltemplate", "delcall", "log"];
+
+  CodeMirror.defineMode("soy", function(config) {
+    var textMode = CodeMirror.getMode(config, "text/plain");
+    var modes = {
+      html: CodeMirror.getMode(config, {name: "text/html", multilineTagIndentFactor: 2, multilineTagIndentPastTag: false}),
+      attributes: textMode,
+      text: textMode,
+      uri: textMode,
+      css: CodeMirror.getMode(config, "text/css"),
+      js: CodeMirror.getMode(config, {name: "text/javascript", statementIndent: 2 * config.indentUnit})
+    };
+
+    function last(array) {
+      return array[array.length - 1];
+    }
+
+    function tokenUntil(stream, state, untilRegExp) {
+      if (stream.sol()) {
+        for (var indent = 0; indent < state.indent; indent++) {
+          if (!stream.eat(/\s/)) break;
+        }
+        if (indent) return null;
+      }
+      var oldString = stream.string;
+      var match = untilRegExp.exec(oldString.substr(stream.pos));
+      if (match) {
+        // We don't use backUp because it backs up just the position, not the state.
+        // This uses an undocumented API.
+        stream.string = oldString.substr(0, stream.pos + match.index);
+      }
+      var result = stream.hideFirstChars(state.indent, function() {
+        var localState = last(state.localStates);
+        return localState.mode.token(stream, localState.state);
+      });
+      stream.string = oldString;
+      return result;
+    }
+
+    function contains(list, element) {
+      while (list) {
+        if (list.element === element) return true;
+        list = list.next;
+      }
+      return false;
+    }
+
+    function prepend(list, element) {
+      return {
+        element: element,
+        next: list
+      };
+    }
+
+    // Reference a variable `name` in `list`.
+    // Let `loose` be truthy to ignore missing identifiers.
+    function ref(list, name, loose) {
+      return contains(list, name) ? "variable-2" : (loose ? "variable" : "variable-2 error");
+    }
+
+    function popscope(state) {
+      if (state.scopes) {
+        state.variables = state.scopes.element;
+        state.scopes = state.scopes.next;
+      }
+    }
+
+    return {
+      startState: function() {
+        return {
+          kind: [],
+          kindTag: [],
+          soyState: [],
+          templates: null,
+          variables: null,
+          scopes: null,
+          indent: 0,
+          localStates: [{
+            mode: modes.html,
+            state: CodeMirror.startState(modes.html)
+          }]
+        };
+      },
+
+      copyState: function(state) {
+        return {
+          tag: state.tag, // Last seen Soy tag.
+          kind: state.kind.concat([]), // Values of kind="" attributes.
+          kindTag: state.kindTag.concat([]), // Opened tags with kind="" attributes.
+          soyState: state.soyState.concat([]),
+          templates: state.templates,
+          variables: state.variables,
+          scopes: state.scopes,
+          indent: state.indent, // Indentation of the following line.
+          localStates: state.localStates.map(function(localState) {
+            return {
+              mode: localState.mode,
+              state: CodeMirror.copyState(localState.mode, localState.state)
+            };
+          })
+        };
+      },
+
+      token: function(stream, state) {
+        var match;
+
+        switch (last(state.soyState)) {
+          case "comment":
+            if (stream.match(/^.*?\*\//)) {
+              state.soyState.pop();
+            } else {
+              stream.skipToEnd();
+            }
+            return "comment";
+
+          case "templ-def":
+            if (match = stream.match(/^\.?([\w]+(?!\.[\w]+)*)/)) {
+              state.templates = prepend(state.templates, match[1]);
+              state.scopes = prepend(state.scopes, state.variables);
+              state.soyState.pop();
+              return "def";
+            }
+            stream.next();
+            return null;
+
+          case "templ-ref":
+            if (match = stream.match(/^\.?([\w]+)/)) {
+              state.soyState.pop();
+              // If the first character is '.', try to match against a local template name.
+              if (match[0][0] == '.') {
+                return ref(state.templates, match[1], true);
+              }
+              // Otherwise
+              return "variable";
+            }
+            stream.next();
+            return null;
+
+          case "param-def":
+            if (match = stream.match(/^([\w]+)(?=:)/)) {
+              state.variables = prepend(state.variables, match[1]);
+              state.soyState.pop();
+              state.soyState.push("param-type");
+              return "def";
+            }
+            stream.next();
+            return null;
+
+          case "param-type":
+            if (stream.peek() == "}") {
+              state.soyState.pop();
+              return null;
+            }
+            if (stream.eatWhile(/^[\w]+/)) {
+              return "variable-3";
+            }
+            stream.next();
+            return null;
+
+          case "var-def":
+            if (match = stream.match(/^\$([\w]+)/)) {
+              state.variables = prepend(state.variables, match[1]);
+              state.soyState.pop();
+              return "def";
+            }
+            stream.next();
+            return null;
+
+          case "tag":
+            if (stream.match(/^\/?}/)) {
+              if (state.tag == "/template" || state.tag == "/deltemplate") {
+                popscope(state);
+                state.indent = 0;
+              } else {
+                if (state.tag == "/for" || state.tag == "/foreach") {
+                  popscope(state);
+                }
+                state.indent -= config.indentUnit *
+                    (stream.current() == "/}" || indentingTags.indexOf(state.tag) == -1 ? 2 : 1);
+              }
+              state.soyState.pop();
+              return "keyword";
+            } else if (stream.match(/^([\w?]+)(?==)/)) {
+              if (stream.current() == "kind" && (match = stream.match(/^="([^"]+)/, false))) {
+                var kind = match[1];
+                state.kind.push(kind);
+                state.kindTag.push(state.tag);
+                var mode = modes[kind] || modes.html;
+                var localState = last(state.localStates);
+                state.indent += localState.mode.indent(localState.state, "");
+                state.localStates.push({
+                  mode: mode,
+                  state: CodeMirror.startState(mode)
+                });
+              }
+              return "attribute";
+            } else if (stream.match(/^"/)) {
+              state.soyState.push("string");
+              return "string";
+            }
+            if (match = stream.match(/^\$([\w]+)/)) {
+              return ref(state.variables, match[1]);
+            }
+            if (match = stream.match(/^\w+/)) {
+              return /^(?:as|and|or|not|in)$/.test(match[0]) ? "keyword" : null;
+            }
+            stream.next();
+            return null;
+
+          case "literal":
+            if (stream.match(/^(?=\{\/literal})/)) {
+              state.indent -= config.indentUnit;
+              state.soyState.pop();
+              return this.token(stream, state);
+            }
+            return tokenUntil(stream, state, /\{\/literal}/);
+
+          case "string":
+            var match = stream.match(/^.*?("|\\[\s\S])/);
+            if (!match) {
+              stream.skipToEnd();
+            } else if (match[1] == "\"") {
+              state.soyState.pop();
+            }
+            return "string";
+        }
+
+        if (stream.match(/^\/\*/)) {
+          state.soyState.push("comment");
+          return "comment";
+        } else if (stream.match(stream.sol() ? /^\s*\/\/.*/ : /^\s+\/\/.*/)) {
+          return "comment";
+        } else if (stream.match(/^\{literal}/)) {
+          state.indent += config.indentUnit;
+          state.soyState.push("literal");
+          return "keyword";
+        } else if (match = stream.match(/^\{([\/@\\]?[\w?]*)/)) {
+          if (match[1] != "/switch")
+            state.indent += (/^(\/|(else|elseif|ifempty|case|fallbackmsg|default)$)/.test(match[1]) && state.tag != "switch" ? 1 : 2) * config.indentUnit;
+          state.tag = match[1];
+          if (state.tag == "/" + last(state.kindTag)) {
+            // We found the tag that opened the current kind="".
+            state.kind.pop();
+            state.kindTag.pop();
+            state.localStates.pop();
+            var localState = last(state.localStates);
+            state.indent -= localState.mode.indent(localState.state, "");
+          }
+          state.soyState.push("tag");
+          if (state.tag == "template" || state.tag == "deltemplate") {
+            state.soyState.push("templ-def");
+          }
+          if (state.tag == "call" || state.tag == "delcall") {
+            state.soyState.push("templ-ref");
+          }
+          if (state.tag == "let") {
+            state.soyState.push("var-def");
+          }
+          if (state.tag == "for" || state.tag == "foreach") {
+            state.scopes = prepend(state.scopes, state.variables);
+            state.soyState.push("var-def");
+          }
+          if (state.tag.match(/^@(?:param\??|inject)/)) {
+            state.soyState.push("param-def");
+          }
+          return "keyword";
+        }
+
+        return tokenUntil(stream, state, /\{|\s+\/\/|\/\*/);
+      },
+
+      indent: function(state, textAfter) {
+        var indent = state.indent, top = last(state.soyState);
+        if (top == "comment") return CodeMirror.Pass;
+
+        if (top == "literal") {
+          if (/^\{\/literal}/.test(textAfter)) indent -= config.indentUnit;
+        } else {
+          if (/^\s*\{\/(template|deltemplate)\b/.test(textAfter)) return 0;
+          if (/^\{(\/|(fallbackmsg|elseif|else|ifempty)\b)/.test(textAfter)) indent -= config.indentUnit;
+          if (state.tag != "switch" && /^\{(case|default)\b/.test(textAfter)) indent -= config.indentUnit;
+          if (/^\{\/switch\b/.test(textAfter)) indent -= config.indentUnit;
+        }
+        var localState = last(state.localStates);
+        if (indent && localState.mode.indent) {
+          indent += localState.mode.indent(localState.state, textAfter);
+        }
+        return indent;
+      },
+
+      innerMode: function(state) {
+        if (state.soyState.length && last(state.soyState) != "literal") return null;
+        else return last(state.localStates);
+      },
+
+      electricInput: /^\s*\{(\/|\/template|\/deltemplate|\/switch|fallbackmsg|elseif|else|case|default|ifempty|\/literal\})$/,
+      lineComment: "//",
+      blockCommentStart: "/*",
+      blockCommentEnd: "*/",
+      blockCommentContinue: " * ",
+      useInnerComments: false,
+      fold: "indent"
+    };
+  }, "htmlmixed");
+
+  CodeMirror.registerHelper("hintWords", "soy", indentingTags.concat(
+      ["delpackage", "namespace", "alias", "print", "css", "debugger"]));
+
+  CodeMirror.defineMIME("text/x-soy", "soy");
+});
diff --git a/public/codemirror/mode/soy/test.js b/public/codemirror/mode/soy/test.js
new file mode 100644
index 000000000..38ad7cbeb
--- /dev/null
+++ b/public/codemirror/mode/soy/test.js
@@ -0,0 +1,95 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({indentUnit: 2}, "soy");
+  function MT(name) {test.mode(name, mode, Array.prototype.slice.call(arguments, 1));}
+
+  // Test of small keywords and words containing them.
+  MT('keywords-test',
+     '[keyword {] [keyword as] worrying [keyword and] notorious [keyword as]',
+     '    the Fandor-alias assassin, [keyword or]',
+     '    Corcand cannot fit [keyword in] [keyword }]');
+
+  MT('let-test',
+     '[keyword {template] [def .name][keyword }]',
+     '  [keyword {let] [def $name]: [string "world"][keyword /}]',
+     '  [tag&bracket <][tag h1][tag&bracket >]',
+     '    Hello, [keyword {][variable-2 $name][keyword }]',
+     '  [tag&bracket ]',
+     '[keyword {/template}]',
+     '');
+
+  MT('param-type-test',
+     '[keyword {@param] [def a]: ' +
+         '[variable-3 list]<[[[variable-3 a]: [variable-3 int], ' +
+         '[variable-3 b]: [variable-3 map]<[variable-3 string], ' +
+         '[variable-3 bool]>]]>][keyword }]');
+
+  MT('undefined-var',
+     '[keyword {][variable-2&error $var]');
+
+  MT('param-scope-test',
+     '[keyword {template] [def .a][keyword }]',
+     '  [keyword {@param] [def x]: [variable-3 string][keyword }]',
+     '  [keyword {][variable-2 $x][keyword }]',
+     '[keyword {/template}]',
+     '',
+     '[keyword {template] [def .b][keyword }]',
+     '  [keyword {][variable-2&error $x][keyword }]',
+     '[keyword {/template}]',
+     '');
+
+  MT('if-variable-test',
+     '[keyword {if] [variable-2&error $showThing][keyword }]',
+     '  Yo!',
+     '[keyword {/if}]',
+     '');
+
+  MT('defined-if-variable-test',
+     '[keyword {template] [def .foo][keyword }]',
+     '  [keyword {@param?] [def showThing]: [variable-3 bool][keyword }]',
+     '  [keyword {if] [variable-2 $showThing][keyword }]',
+     '    Yo!',
+     '  [keyword {/if}]',
+     '[keyword {/template}]',
+     '');
+
+  MT('template-calls-test',
+     '[keyword {template] [def .foo][keyword }]',
+     '  Yo!',
+     '[keyword {/template}]',
+     '[keyword {call] [variable-2 .foo][keyword /}]',
+     '[keyword {call] [variable foo][keyword /}]',
+     '[keyword {call] [variable .bar][keyword /}]',
+     '[keyword {call] [variable bar][keyword /}]',
+     '');
+
+  MT('foreach-scope-test',
+     '[keyword {@param] [def bar]: [variable-3 string][keyword }]',
+     '[keyword {foreach] [def $foo] [keyword in] [variable-2&error $foos][keyword }]',
+     '  [keyword {][variable-2 $foo][keyword }]',
+     '[keyword {/foreach}]',
+     '[keyword {][variable-2&error $foo][keyword }]',
+     '[keyword {][variable-2 $bar][keyword }]');
+
+  MT('foreach-ifempty-indent-test',
+     '[keyword {foreach] [def $foo] [keyword in] [variable-2&error $foos][keyword }]',
+     '  something',
+     '[keyword {ifempty}]',
+     '  nothing',
+     '[keyword {/foreach}]',
+     '');
+
+  MT('nested-kind-test',
+     '[keyword {template] [def .foo] [attribute kind]=[string "html"][keyword }]',
+     '  [tag&bracket <][tag div][tag&bracket >]',
+     '    [keyword {call] [variable .bar][keyword }]',
+     '      [keyword {param] [attribute kind]=[string "js"][keyword }]',
+     '        [keyword var] [def bar] [operator =] [number 5];',
+     '      [keyword {/param}]',
+     '    [keyword {/call}]',
+     '  [tag&bracket ]',
+     '[keyword {/template}]',
+     '');
+})();
diff --git a/public/codemirror/mode/sparql/index.html b/public/codemirror/mode/sparql/index.html
new file mode 100644
index 000000000..84ef4d363
--- /dev/null
+++ b/public/codemirror/mode/sparql/index.html
@@ -0,0 +1,61 @@
+
+
+CodeMirror: SPARQL mode
+
+
+
+
+
+
+
+
+
+
+

+
SPARQL mode

+

+    
+
+    
MIME types defined: application/sparql-query.

+
+  

diff --git a/public/codemirror/mode/sparql/sparql.js b/public/codemirror/mode/sparql/sparql.js
new file mode 100644
index 000000000..095dcca65
--- /dev/null
+++ b/public/codemirror/mode/sparql/sparql.js
@@ -0,0 +1,180 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("sparql", function(config) {
+  var indentUnit = config.indentUnit;
+  var curPunc;
+
+  function wordRegexp(words) {
+    return new RegExp("^(?:" + words.join("|") + ")$", "i");
+  }
+  var ops = wordRegexp(["str", "lang", "langmatches", "datatype", "bound", "sameterm", "isiri", "isuri",
+                        "iri", "uri", "bnode", "count", "sum", "min", "max", "avg", "sample",
+                        "group_concat", "rand", "abs", "ceil", "floor", "round", "concat", "substr", "strlen",
+                        "replace", "ucase", "lcase", "encode_for_uri", "contains", "strstarts", "strends",
+                        "strbefore", "strafter", "year", "month", "day", "hours", "minutes", "seconds",
+                        "timezone", "tz", "now", "uuid", "struuid", "md5", "sha1", "sha256", "sha384",
+                        "sha512", "coalesce", "if", "strlang", "strdt", "isnumeric", "regex", "exists",
+                        "isblank", "isliteral", "a", "bind"]);
+  var keywords = wordRegexp(["base", "prefix", "select", "distinct", "reduced", "construct", "describe",
+                             "ask", "from", "named", "where", "order", "limit", "offset", "filter", "optional",
+                             "graph", "by", "asc", "desc", "as", "having", "undef", "values", "group",
+                             "minus", "in", "not", "service", "silent", "using", "insert", "delete", "union",
+                             "true", "false", "with",
+                             "data", "copy", "to", "move", "add", "create", "drop", "clear", "load"]);
+  var operatorChars = /[*+\-<>=&|\^\/!\?]/;
+
+  function tokenBase(stream, state) {
+    var ch = stream.next();
+    curPunc = null;
+    if (ch == "$" || ch == "?") {
+      if(ch == "?" && stream.match(/\s/, false)){
+        return "operator";
+      }
+      stream.match(/^[\w\d]*/);
+      return "variable-2";
+    }
+    else if (ch == "<" && !stream.match(/^[\s\u00a0=]/, false)) {
+      stream.match(/^[^\s\u00a0>]*>?/);
+      return "atom";
+    }
+    else if (ch == "\"" || ch == "'") {
+      state.tokenize = tokenLiteral(ch);
+      return state.tokenize(stream, state);
+    }
+    else if (/[{}\(\),\.;\[\]]/.test(ch)) {
+      curPunc = ch;
+      return "bracket";
+    }
+    else if (ch == "#") {
+      stream.skipToEnd();
+      return "comment";
+    }
+    else if (operatorChars.test(ch)) {
+      stream.eatWhile(operatorChars);
+      return "operator";
+    }
+    else if (ch == ":") {
+      stream.eatWhile(/[\w\d\._\-]/);
+      return "atom";
+    }
+    else if (ch == "@") {
+      stream.eatWhile(/[a-z\d\-]/i);
+      return "meta";
+    }
+    else {
+      stream.eatWhile(/[_\w\d]/);
+      if (stream.eat(":")) {
+        stream.eatWhile(/[\w\d_\-]/);
+        return "atom";
+      }
+      var word = stream.current();
+      if (ops.test(word))
+        return "builtin";
+      else if (keywords.test(word))
+        return "keyword";
+      else
+        return "variable";
+    }
+  }
+
+  function tokenLiteral(quote) {
+    return function(stream, state) {
+      var escaped = false, ch;
+      while ((ch = stream.next()) != null) {
+        if (ch == quote && !escaped) {
+          state.tokenize = tokenBase;
+          break;
+        }
+        escaped = !escaped && ch == "\\";
+      }
+      return "string";
+    };
+  }
+
+  function pushContext(state, type, col) {
+    state.context = {prev: state.context, indent: state.indent, col: col, type: type};
+  }
+  function popContext(state) {
+    state.indent = state.context.indent;
+    state.context = state.context.prev;
+  }
+
+  return {
+    startState: function() {
+      return {tokenize: tokenBase,
+              context: null,
+              indent: 0,
+              col: 0};
+    },
+
+    token: function(stream, state) {
+      if (stream.sol()) {
+        if (state.context && state.context.align == null) state.context.align = false;
+        state.indent = stream.indentation();
+      }
+      if (stream.eatSpace()) return null;
+      var style = state.tokenize(stream, state);
+
+      if (style != "comment" && state.context && state.context.align == null && state.context.type != "pattern") {
+        state.context.align = true;
+      }
+
+      if (curPunc == "(") pushContext(state, ")", stream.column());
+      else if (curPunc == "[") pushContext(state, "]", stream.column());
+      else if (curPunc == "{") pushContext(state, "}", stream.column());
+      else if (/[\]\}\)]/.test(curPunc)) {
+        while (state.context && state.context.type == "pattern") popContext(state);
+        if (state.context && curPunc == state.context.type) {
+          popContext(state);
+          if (curPunc == "}" && state.context && state.context.type == "pattern")
+            popContext(state);
+        }
+      }
+      else if (curPunc == "." && state.context && state.context.type == "pattern") popContext(state);
+      else if (/atom|string|variable/.test(style) && state.context) {
+        if (/[\}\]]/.test(state.context.type))
+          pushContext(state, "pattern", stream.column());
+        else if (state.context.type == "pattern" && !state.context.align) {
+          state.context.align = true;
+          state.context.col = stream.column();
+        }
+      }
+
+      return style;
+    },
+
+    indent: function(state, textAfter) {
+      var firstChar = textAfter && textAfter.charAt(0);
+      var context = state.context;
+      if (/[\]\}]/.test(firstChar))
+        while (context && context.type == "pattern") context = context.prev;
+
+      var closing = context && firstChar == context.type;
+      if (!context)
+        return 0;
+      else if (context.type == "pattern")
+        return context.col;
+      else if (context.align)
+        return context.col + (closing ? 0 : 1);
+      else
+        return context.indent + (closing ? 0 : indentUnit);
+    },
+
+    lineComment: "#"
+  };
+});
+
+CodeMirror.defineMIME("application/sparql-query", "sparql");
+
+});
diff --git a/public/codemirror/mode/spreadsheet/index.html b/public/codemirror/mode/spreadsheet/index.html
new file mode 100644
index 000000000..a52f76f05
--- /dev/null
+++ b/public/codemirror/mode/spreadsheet/index.html
@@ -0,0 +1,42 @@
+
+
+CodeMirror: Spreadsheet mode
+
+
+
+
+
+
+
+
+
+
+

+  
Spreadsheet mode

+  

+
+  
+
+  
MIME types defined: text/x-spreadsheet.

+  
+  
The Spreadsheet Mode

+  
 Created by Robert Plummer

+

diff --git a/public/codemirror/mode/spreadsheet/spreadsheet.js b/public/codemirror/mode/spreadsheet/spreadsheet.js
new file mode 100644
index 000000000..222f29766
--- /dev/null
+++ b/public/codemirror/mode/spreadsheet/spreadsheet.js
@@ -0,0 +1,112 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineMode("spreadsheet", function () {
+    return {
+      startState: function () {
+        return {
+          stringType: null,
+          stack: []
+        };
+      },
+      token: function (stream, state) {
+        if (!stream) return;
+
+        //check for state changes
+        if (state.stack.length === 0) {
+          //strings
+          if ((stream.peek() == '"') || (stream.peek() == "'")) {
+            state.stringType = stream.peek();
+            stream.next(); // Skip quote
+            state.stack.unshift("string");
+          }
+        }
+
+        //return state
+        //stack has
+        switch (state.stack[0]) {
+        case "string":
+          while (state.stack[0] === "string" && !stream.eol()) {
+            if (stream.peek() === state.stringType) {
+              stream.next(); // Skip quote
+              state.stack.shift(); // Clear flag
+            } else if (stream.peek() === "\\") {
+              stream.next();
+              stream.next();
+            } else {
+              stream.match(/^.[^\\\"\']*/);
+            }
+          }
+          return "string";
+
+        case "characterClass":
+          while (state.stack[0] === "characterClass" && !stream.eol()) {
+            if (!(stream.match(/^[^\]\\]+/) || stream.match(/^\\./)))
+              state.stack.shift();
+          }
+          return "operator";
+        }
+
+        var peek = stream.peek();
+
+        //no stack
+        switch (peek) {
+        case "[":
+          stream.next();
+          state.stack.unshift("characterClass");
+          return "bracket";
+        case ":":
+          stream.next();
+          return "operator";
+        case "\\":
+          if (stream.match(/\\[a-z]+/)) return "string-2";
+          else {
+            stream.next();
+            return "atom";
+          }
+        case ".":
+        case ",":
+        case ";":
+        case "*":
+        case "-":
+        case "+":
+        case "^":
+        case "<":
+        case "/":
+        case "=":
+          stream.next();
+          return "atom";
+        case "$":
+          stream.next();
+          return "builtin";
+        }
+
+        if (stream.match(/\d+/)) {
+          if (stream.match(/^\w+/)) return "error";
+          return "number";
+        } else if (stream.match(/^[a-zA-Z_]\w*/)) {
+          if (stream.match(/(?=[\(.])/, false)) return "keyword";
+          return "variable-2";
+        } else if (["[", "]", "(", ")", "{", "}"].indexOf(peek) != -1) {
+          stream.next();
+          return "bracket";
+        } else if (!stream.eatSpace()) {
+          stream.next();
+        }
+        return null;
+      }
+    };
+  });
+
+  CodeMirror.defineMIME("text/x-spreadsheet", "spreadsheet");
+});
diff --git a/public/codemirror/mode/sql/index.html b/public/codemirror/mode/sql/index.html
new file mode 100644
index 000000000..dba069dc8
--- /dev/null
+++ b/public/codemirror/mode/sql/index.html
@@ -0,0 +1,86 @@
+
+
+CodeMirror: SQL Mode for CodeMirror
+
+
+
+
+
+
+
+
+
+
+
+
+

+
SQL Mode for CodeMirror

+

+            
+            

+            
MIME types defined: 
+            text/x-sql,
+            text/x-mysql,
+            text/x-mariadb,
+            text/x-cassandra,
+            text/x-plsql,
+            text/x-mssql,
+            text/x-hive,
+            text/x-pgsql,
+            text/x-gql.
+        

+
+
+

diff --git a/public/codemirror/mode/sql/sql.js b/public/codemirror/mode/sql/sql.js
new file mode 100644
index 000000000..5734afa9f
--- /dev/null
+++ b/public/codemirror/mode/sql/sql.js
@@ -0,0 +1,456 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("sql", function(config, parserConfig) {
+  "use strict";
+
+  var client         = parserConfig.client || {},
+      atoms          = parserConfig.atoms || {"false": true, "true": true, "null": true},
+      builtin        = parserConfig.builtin || {},
+      keywords       = parserConfig.keywords || {},
+      operatorChars  = parserConfig.operatorChars || /^[*+\-%<>!=&|~^]/,
+      support        = parserConfig.support || {},
+      hooks          = parserConfig.hooks || {},
+      dateSQL        = parserConfig.dateSQL || {"date" : true, "time" : true, "timestamp" : true};
+
+  function tokenBase(stream, state) {
+    var ch = stream.next();
+
+    // call hooks from the mime type
+    if (hooks[ch]) {
+      var result = hooks[ch](stream, state);
+      if (result !== false) return result;
+    }
+
+    if (support.hexNumber &&
+      ((ch == "0" && stream.match(/^[xX][0-9a-fA-F]+/))
+      || (ch == "x" || ch == "X") && stream.match(/^'[0-9a-fA-F]+'/))) {
+      // hex
+      // ref: http://dev.mysql.com/doc/refman/5.5/en/hexadecimal-literals.html
+      return "number";
+    } else if (support.binaryNumber &&
+      (((ch == "b" || ch == "B") && stream.match(/^'[01]+'/))
+      || (ch == "0" && stream.match(/^b[01]+/)))) {
+      // bitstring
+      // ref: http://dev.mysql.com/doc/refman/5.5/en/bit-field-literals.html
+      return "number";
+    } else if (ch.charCodeAt(0) > 47 && ch.charCodeAt(0) < 58) {
+      // numbers
+      // ref: http://dev.mysql.com/doc/refman/5.5/en/number-literals.html
+          stream.match(/^[0-9]*\.?[0-9]+([eE][-+]?[0-9]+)?/);
+      support.decimallessFloat && stream.eat('.');
+      return "number";
+    } else if (ch == "?" && (stream.eatSpace() || stream.eol() || stream.eat(";"))) {
+      // placeholders
+      return "variable-3";
+    } else if (ch == "'" || (ch == '"' && support.doubleQuote)) {
+      // strings
+      // ref: http://dev.mysql.com/doc/refman/5.5/en/string-literals.html
+      state.tokenize = tokenLiteral(ch);
+      return state.tokenize(stream, state);
+    } else if ((((support.nCharCast && (ch == "n" || ch == "N"))
+        || (support.charsetCast && ch == "_" && stream.match(/[a-z][a-z0-9]*/i)))
+        && (stream.peek() == "'" || stream.peek() == '"'))) {
+      // charset casting: _utf8'str', N'str', n'str'
+      // ref: http://dev.mysql.com/doc/refman/5.5/en/string-literals.html
+      return "keyword";
+    } else if (/^[\(\),\;\[\]]/.test(ch)) {
+      // no highlighting
+      return null;
+    } else if (support.commentSlashSlash && ch == "/" && stream.eat("/")) {
+      // 1-line comment
+      stream.skipToEnd();
+      return "comment";
+    } else if ((support.commentHash && ch == "#")
+        || (ch == "-" && stream.eat("-") && (!support.commentSpaceRequired || stream.eat(" ")))) {
+      // 1-line comments
+      // ref: https://kb.askmonty.org/en/comment-syntax/
+      stream.skipToEnd();
+      return "comment";
+    } else if (ch == "/" && stream.eat("*")) {
+      // multi-line comments
+      // ref: https://kb.askmonty.org/en/comment-syntax/
+      state.tokenize = tokenComment;
+      return state.tokenize(stream, state);
+    } else if (ch == ".") {
+      // .1 for 0.1
+      if (support.zerolessFloat && stream.match(/^(?:\d+(?:e[+-]?\d+)?)/i)) {
+        return "number";
+      }
+      // .table_name (ODBC)
+      // // ref: http://dev.mysql.com/doc/refman/5.6/en/identifier-qualifiers.html
+      if (support.ODBCdotTable && stream.match(/^[a-zA-Z_]+/)) {
+        return "variable-2";
+      }
+    } else if (operatorChars.test(ch)) {
+      // operators
+      stream.eatWhile(operatorChars);
+      return null;
+    } else if (ch == '{' &&
+        (stream.match(/^( )*(d|D|t|T|ts|TS)( )*'[^']*'( )*}/) || stream.match(/^( )*(d|D|t|T|ts|TS)( )*"[^"]*"( )*}/))) {
+      // dates (weird ODBC syntax)
+      // ref: http://dev.mysql.com/doc/refman/5.5/en/date-and-time-literals.html
+      return "number";
+    } else {
+      stream.eatWhile(/^[_\w\d]/);
+      var word = stream.current().toLowerCase();
+      // dates (standard SQL syntax)
+      // ref: http://dev.mysql.com/doc/refman/5.5/en/date-and-time-literals.html
+      if (dateSQL.hasOwnProperty(word) && (stream.match(/^( )+'[^']*'/) || stream.match(/^( )+"[^"]*"/)))
+        return "number";
+      if (atoms.hasOwnProperty(word)) return "atom";
+      if (builtin.hasOwnProperty(word)) return "builtin";
+      if (keywords.hasOwnProperty(word)) return "keyword";
+      if (client.hasOwnProperty(word)) return "string-2";
+      return null;
+    }
+  }
+
+  // 'string', with char specified in quote escaped by '\'
+  function tokenLiteral(quote) {
+    return function(stream, state) {
+      var escaped = false, ch;
+      while ((ch = stream.next()) != null) {
+        if (ch == quote && !escaped) {
+          state.tokenize = tokenBase;
+          break;
+        }
+        escaped = !escaped && ch == "\\";
+      }
+      return "string";
+    };
+  }
+  function tokenComment(stream, state) {
+    while (true) {
+      if (stream.skipTo("*")) {
+        stream.next();
+        if (stream.eat("/")) {
+          state.tokenize = tokenBase;
+          break;
+        }
+      } else {
+        stream.skipToEnd();
+        break;
+      }
+    }
+    return "comment";
+  }
+
+  function pushContext(stream, state, type) {
+    state.context = {
+      prev: state.context,
+      indent: stream.indentation(),
+      col: stream.column(),
+      type: type
+    };
+  }
+
+  function popContext(state) {
+    state.indent = state.context.indent;
+    state.context = state.context.prev;
+  }
+
+  return {
+    startState: function() {
+      return {tokenize: tokenBase, context: null};
+    },
+
+    token: function(stream, state) {
+      if (stream.sol()) {
+        if (state.context && state.context.align == null)
+          state.context.align = false;
+      }
+      if (stream.eatSpace()) return null;
+
+      var style = state.tokenize(stream, state);
+      if (style == "comment") return style;
+
+      if (state.context && state.context.align == null)
+        state.context.align = true;
+
+      var tok = stream.current();
+      if (tok == "(")
+        pushContext(stream, state, ")");
+      else if (tok == "[")
+        pushContext(stream, state, "]");
+      else if (state.context && state.context.type == tok)
+        popContext(state);
+      return style;
+    },
+
+    indent: function(state, textAfter) {
+      var cx = state.context;
+      if (!cx) return CodeMirror.Pass;
+      var closing = textAfter.charAt(0) == cx.type;
+      if (cx.align) return cx.col + (closing ? 0 : 1);
+      else return cx.indent + (closing ? 0 : config.indentUnit);
+    },
+
+    blockCommentStart: "/*",
+    blockCommentEnd: "*/",
+    lineComment: support.commentSlashSlash ? "//" : support.commentHash ? "#" : null
+  };
+});
+
+(function() {
+  "use strict";
+
+  // `identifier`
+  function hookIdentifier(stream) {
+    // MySQL/MariaDB identifiers
+    // ref: http://dev.mysql.com/doc/refman/5.6/en/identifier-qualifiers.html
+    var ch;
+    while ((ch = stream.next()) != null) {
+      if (ch == "`" && !stream.eat("`")) return "variable-2";
+    }
+    stream.backUp(stream.current().length - 1);
+    return stream.eatWhile(/\w/) ? "variable-2" : null;
+  }
+
+  // "identifier"
+  function hookIdentifierDoublequote(stream) {
+    // Standard SQL /SQLite identifiers
+    // ref: http://web.archive.org/web/20160813185132/http://savage.net.au/SQL/sql-99.bnf.html#delimited%20identifier
+    // ref: http://sqlite.org/lang_keywords.html
+    var ch;
+    while ((ch = stream.next()) != null) {
+      if (ch == "\"" && !stream.eat("\"")) return "variable-2";
+    }
+    stream.backUp(stream.current().length - 1);
+    return stream.eatWhile(/\w/) ? "variable-2" : null;
+  }
+
+  // variable token
+  function hookVar(stream) {
+    // variables
+    // @@prefix.varName @varName
+    // varName can be quoted with ` or ' or "
+    // ref: http://dev.mysql.com/doc/refman/5.5/en/user-variables.html
+    if (stream.eat("@")) {
+      stream.match(/^session\./);
+      stream.match(/^local\./);
+      stream.match(/^global\./);
+    }
+
+    if (stream.eat("'")) {
+      stream.match(/^.*'/);
+      return "variable-2";
+    } else if (stream.eat('"')) {
+      stream.match(/^.*"/);
+      return "variable-2";
+    } else if (stream.eat("`")) {
+      stream.match(/^.*`/);
+      return "variable-2";
+    } else if (stream.match(/^[0-9a-zA-Z$\.\_]+/)) {
+      return "variable-2";
+    }
+    return null;
+  };
+
+  // short client keyword token
+  function hookClient(stream) {
+    // \N means NULL
+    // ref: http://dev.mysql.com/doc/refman/5.5/en/null-values.html
+    if (stream.eat("N")) {
+        return "atom";
+    }
+    // \g, etc
+    // ref: http://dev.mysql.com/doc/refman/5.5/en/mysql-commands.html
+    return stream.match(/^[a-zA-Z.#!?]/) ? "variable-2" : null;
+  }
+
+  // these keywords are used by all SQL dialects (however, a mode can still overwrite it)
+  var sqlKeywords = "alter and as asc between by count create delete desc distinct drop from group having in insert into is join like not on or order select set table union update values where limit ";
+
+  // turn a space-separated list into an array
+  function set(str) {
+    var obj = {}, words = str.split(" ");
+    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+    return obj;
+  }
+
+  // A generic SQL Mode. It's not a standard, it just try to support what is generally supported
+  CodeMirror.defineMIME("text/x-sql", {
+    name: "sql",
+    keywords: set(sqlKeywords + "begin"),
+    builtin: set("bool boolean bit blob enum long longblob longtext medium mediumblob mediumint mediumtext time timestamp tinyblob tinyint tinytext text bigint int int1 int2 int3 int4 int8 integer float float4 float8 double char varbinary varchar varcharacter precision real date datetime year unsigned signed decimal numeric"),
+    atoms: set("false true null unknown"),
+    operatorChars: /^[*+\-%<>!=]/,
+    dateSQL: set("date time timestamp"),
+    support: set("ODBCdotTable doubleQuote binaryNumber hexNumber")
+  });
+
+  CodeMirror.defineMIME("text/x-mssql", {
+    name: "sql",
+    client: set("charset clear connect edit ego exit go help nopager notee nowarning pager print prompt quit rehash source status system tee"),
+    keywords: set(sqlKeywords + "begin trigger proc view index for add constraint key primary foreign collate clustered nonclustered declare exec"),
+    builtin: set("bigint numeric bit smallint decimal smallmoney int tinyint money float real char varchar text nchar nvarchar ntext binary varbinary image cursor timestamp hierarchyid uniqueidentifier sql_variant xml table "),
+    atoms: set("false true null unknown"),
+    operatorChars: /^[*+\-%<>!=]/,
+    dateSQL: set("date datetimeoffset datetime2 smalldatetime datetime time"),
+    hooks: {
+      "@":   hookVar
+    }
+  });
+
+  CodeMirror.defineMIME("text/x-mysql", {
+    name: "sql",
+    client: set("charset clear connect edit ego exit go help nopager notee nowarning pager print prompt quit rehash source status system tee"),
+    keywords: set(sqlKeywords + "accessible action add after algorithm all analyze asensitive at authors auto_increment autocommit avg avg_row_length before binary binlog both btree cache call cascade cascaded case catalog_name chain change changed character check checkpoint checksum class_origin client_statistics close coalesce code collate collation collations column columns comment commit committed completion concurrent condition connection consistent constraint contains continue contributors convert cross current current_date current_time current_timestamp current_user cursor data database databases day_hour day_microsecond day_minute day_second deallocate dec declare default delay_key_write delayed delimiter des_key_file describe deterministic dev_pop dev_samp deviance diagnostics directory disable discard distinctrow div dual dumpfile each elseif enable enclosed end ends engine engines enum errors escape escaped even event events every execute exists exit explain extended fast fetch field fields first flush for force foreign found_rows full fulltext function general get global grant grants group group_concat handler hash help high_priority hosts hour_microsecond hour_minute hour_second if ignore ignore_server_ids import index index_statistics infile inner innodb inout insensitive insert_method install interval invoker isolation iterate key keys kill language last leading leave left level limit linear lines list load local localtime localtimestamp lock logs low_priority master master_heartbeat_period master_ssl_verify_server_cert masters match max max_rows maxvalue message_text middleint migrate min min_rows minute_microsecond minute_second mod mode modifies modify mutex mysql_errno natural next no no_write_to_binlog offline offset one online open optimize option optionally out outer outfile pack_keys parser partition partitions password phase plugin plugins prepare preserve prev primary privileges procedure processlist profile profiles purge query quick range read read_write reads real rebuild recover references regexp relaylog release remove rename reorganize repair repeatable replace require resignal restrict resume return returns revoke right rlike rollback rollup row row_format rtree savepoint schedule schema schema_name schemas second_microsecond security sensitive separator serializable server session share show signal slave slow smallint snapshot soname spatial specific sql sql_big_result sql_buffer_result sql_cache sql_calc_found_rows sql_no_cache sql_small_result sqlexception sqlstate sqlwarning ssl start starting starts status std stddev stddev_pop stddev_samp storage straight_join subclass_origin sum suspend table_name table_statistics tables tablespace temporary terminated to trailing transaction trigger triggers truncate uncommitted undo uninstall unique unlock upgrade usage use use_frm user user_resources user_statistics using utc_date utc_time utc_timestamp value variables varying view views warnings when while with work write xa xor year_month zerofill begin do then else loop repeat"),
+    builtin: set("bool boolean bit blob decimal double float long longblob longtext medium mediumblob mediumint mediumtext time timestamp tinyblob tinyint tinytext text bigint int int1 int2 int3 int4 int8 integer float float4 float8 double char varbinary varchar varcharacter precision date datetime year unsigned signed numeric"),
+    atoms: set("false true null unknown"),
+    operatorChars: /^[*+\-%<>!=&|^]/,
+    dateSQL: set("date time timestamp"),
+    support: set("ODBCdotTable decimallessFloat zerolessFloat binaryNumber hexNumber doubleQuote nCharCast charsetCast commentHash commentSpaceRequired"),
+    hooks: {
+      "@":   hookVar,
+      "`":   hookIdentifier,
+      "\\":  hookClient
+    }
+  });
+
+  CodeMirror.defineMIME("text/x-mariadb", {
+    name: "sql",
+    client: set("charset clear connect edit ego exit go help nopager notee nowarning pager print prompt quit rehash source status system tee"),
+    keywords: set(sqlKeywords + "accessible action add after algorithm all always analyze asensitive at authors auto_increment autocommit avg avg_row_length before binary binlog both btree cache call cascade cascaded case catalog_name chain change changed character check checkpoint checksum class_origin client_statistics close coalesce code collate collation collations column columns comment commit committed completion concurrent condition connection consistent constraint contains continue contributors convert cross current current_date current_time current_timestamp current_user cursor data database databases day_hour day_microsecond day_minute day_second deallocate dec declare default delay_key_write delayed delimiter des_key_file describe deterministic dev_pop dev_samp deviance diagnostics directory disable discard distinctrow div dual dumpfile each elseif enable enclosed end ends engine engines enum errors escape escaped even event events every execute exists exit explain extended fast fetch field fields first flush for force foreign found_rows full fulltext function general generated get global grant grants group groupby_concat handler hard hash help high_priority hosts hour_microsecond hour_minute hour_second if ignore ignore_server_ids import index index_statistics infile inner innodb inout insensitive insert_method install interval invoker isolation iterate key keys kill language last leading leave left level limit linear lines list load local localtime localtimestamp lock logs low_priority master master_heartbeat_period master_ssl_verify_server_cert masters match max max_rows maxvalue message_text middleint migrate min min_rows minute_microsecond minute_second mod mode modifies modify mutex mysql_errno natural next no no_write_to_binlog offline offset one online open optimize option optionally out outer outfile pack_keys parser partition partitions password persistent phase plugin plugins prepare preserve prev primary privileges procedure processlist profile profiles purge query quick range read read_write reads real rebuild recover references regexp relaylog release remove rename reorganize repair repeatable replace require resignal restrict resume return returns revoke right rlike rollback rollup row row_format rtree savepoint schedule schema schema_name schemas second_microsecond security sensitive separator serializable server session share show shutdown signal slave slow smallint snapshot soft soname spatial specific sql sql_big_result sql_buffer_result sql_cache sql_calc_found_rows sql_no_cache sql_small_result sqlexception sqlstate sqlwarning ssl start starting starts status std stddev stddev_pop stddev_samp storage straight_join subclass_origin sum suspend table_name table_statistics tables tablespace temporary terminated to trailing transaction trigger triggers truncate uncommitted undo uninstall unique unlock upgrade usage use use_frm user user_resources user_statistics using utc_date utc_time utc_timestamp value variables varying view views virtual warnings when while with work write xa xor year_month zerofill begin do then else loop repeat"),
+    builtin: set("bool boolean bit blob decimal double float long longblob longtext medium mediumblob mediumint mediumtext time timestamp tinyblob tinyint tinytext text bigint int int1 int2 int3 int4 int8 integer float float4 float8 double char varbinary varchar varcharacter precision date datetime year unsigned signed numeric"),
+    atoms: set("false true null unknown"),
+    operatorChars: /^[*+\-%<>!=&|^]/,
+    dateSQL: set("date time timestamp"),
+    support: set("ODBCdotTable decimallessFloat zerolessFloat binaryNumber hexNumber doubleQuote nCharCast charsetCast commentHash commentSpaceRequired"),
+    hooks: {
+      "@":   hookVar,
+      "`":   hookIdentifier,
+      "\\":  hookClient
+    }
+  });
+
+  // provided by the phpLiteAdmin project - phpliteadmin.org
+  CodeMirror.defineMIME("text/x-sqlite", {
+    name: "sql",
+    // commands of the official SQLite client, ref: https://www.sqlite.org/cli.html#dotcmd
+    client: set("auth backup bail binary changes check clone databases dbinfo dump echo eqp exit explain fullschema headers help import imposter indexes iotrace limit lint load log mode nullvalue once open output print prompt quit read restore save scanstats schema separator session shell show stats system tables testcase timeout timer trace vfsinfo vfslist vfsname width"),
+    // ref: http://sqlite.org/lang_keywords.html
+    keywords: set(sqlKeywords + "abort action add after all analyze attach autoincrement before begin cascade case cast check collate column commit conflict constraint cross current_date current_time current_timestamp database default deferrable deferred detach each else end escape except exclusive exists explain fail for foreign full glob if ignore immediate index indexed initially inner instead intersect isnull key left limit match natural no notnull null of offset outer plan pragma primary query raise recursive references regexp reindex release rename replace restrict right rollback row savepoint temp temporary then to transaction trigger unique using vacuum view virtual when with without"),
+    // SQLite is weakly typed, ref: http://sqlite.org/datatype3.html. This is just a list of some common types.
+    builtin: set("bool boolean bit blob decimal double float long longblob longtext medium mediumblob mediumint mediumtext time timestamp tinyblob tinyint tinytext text clob bigint int int2 int8 integer float double char varchar date datetime year unsigned signed numeric real"),
+    // ref: http://sqlite.org/syntax/literal-value.html
+    atoms: set("null current_date current_time current_timestamp"),
+    // ref: http://sqlite.org/lang_expr.html#binaryops
+    operatorChars: /^[*+\-%<>!=&|/~]/,
+    // SQLite is weakly typed, ref: http://sqlite.org/datatype3.html. This is just a list of some common types.
+    dateSQL: set("date time timestamp datetime"),
+    support: set("decimallessFloat zerolessFloat"),
+    identifierQuote: "\"",  //ref: http://sqlite.org/lang_keywords.html
+    hooks: {
+      // bind-parameters ref:http://sqlite.org/lang_expr.html#varparam
+      "@":   hookVar,
+      ":":   hookVar,
+      "?":   hookVar,
+      "$":   hookVar,
+      // The preferred way to escape Identifiers is using double quotes, ref: http://sqlite.org/lang_keywords.html
+      "\"":   hookIdentifierDoublequote,
+      // there is also support for backtics, ref: http://sqlite.org/lang_keywords.html
+      "`":   hookIdentifier
+    }
+  });
+
+  // the query language used by Apache Cassandra is called CQL, but this mime type
+  // is called Cassandra to avoid confusion with Contextual Query Language
+  CodeMirror.defineMIME("text/x-cassandra", {
+    name: "sql",
+    client: { },
+    keywords: set("add all allow alter and any apply as asc authorize batch begin by clustering columnfamily compact consistency count create custom delete desc distinct drop each_quorum exists filtering from grant if in index insert into key keyspace keyspaces level limit local_one local_quorum modify nan norecursive nosuperuser not of on one order password permission permissions primary quorum rename revoke schema select set storage superuser table three to token truncate ttl two type unlogged update use user users using values where with writetime"),
+    builtin: set("ascii bigint blob boolean counter decimal double float frozen inet int list map static text timestamp timeuuid tuple uuid varchar varint"),
+    atoms: set("false true infinity NaN"),
+    operatorChars: /^[<>=]/,
+    dateSQL: { },
+    support: set("commentSlashSlash decimallessFloat"),
+    hooks: { }
+  });
+
+  // this is based on Peter Raganitsch's 'plsql' mode
+  CodeMirror.defineMIME("text/x-plsql", {
+    name:       "sql",
+    client:     set("appinfo arraysize autocommit autoprint autorecovery autotrace blockterminator break btitle cmdsep colsep compatibility compute concat copycommit copytypecheck define describe echo editfile embedded escape exec execute feedback flagger flush heading headsep instance linesize lno loboffset logsource long longchunksize markup native newpage numformat numwidth pagesize pause pno recsep recsepchar release repfooter repheader serveroutput shiftinout show showmode size spool sqlblanklines sqlcase sqlcode sqlcontinue sqlnumber sqlpluscompatibility sqlprefix sqlprompt sqlterminator suffix tab term termout time timing trimout trimspool ttitle underline verify version wrap"),
+    keywords:   set("abort accept access add all alter and any array arraylen as asc assert assign at attributes audit authorization avg base_table begin between binary_integer body boolean by case cast char char_base check close cluster clusters colauth column comment commit compress connect connected constant constraint crash create current currval cursor data_base database date dba deallocate debugoff debugon decimal declare default definition delay delete desc digits dispose distinct do drop else elseif elsif enable end entry escape exception exception_init exchange exclusive exists exit external fast fetch file for force form from function generic goto grant group having identified if immediate in increment index indexes indicator initial initrans insert interface intersect into is key level library like limited local lock log logging long loop master maxextents maxtrans member minextents minus mislabel mode modify multiset new next no noaudit nocompress nologging noparallel not nowait number_base object of off offline on online only open option or order out package parallel partition pctfree pctincrease pctused pls_integer positive positiven pragma primary prior private privileges procedure public raise range raw read rebuild record ref references refresh release rename replace resource restrict return returning returns reverse revoke rollback row rowid rowlabel rownum rows run savepoint schema segment select separate session set share snapshot some space split sql start statement storage subtype successful synonym tabauth table tables tablespace task terminate then to trigger truncate type union unique unlimited unrecoverable unusable update use using validate value values variable view views when whenever where while with work"),
+    builtin:    set("abs acos add_months ascii asin atan atan2 average bfile bfilename bigserial bit blob ceil character chartorowid chr clob concat convert cos cosh count dec decode deref dual dump dup_val_on_index empty error exp false float floor found glb greatest hextoraw initcap instr instrb int integer isopen last_day least length lengthb ln lower lpad ltrim lub make_ref max min mlslabel mod months_between natural naturaln nchar nclob new_time next_day nextval nls_charset_decl_len nls_charset_id nls_charset_name nls_initcap nls_lower nls_sort nls_upper nlssort no_data_found notfound null number numeric nvarchar2 nvl others power rawtohex real reftohex round rowcount rowidtochar rowtype rpad rtrim serial sign signtype sin sinh smallint soundex sqlcode sqlerrm sqrt stddev string substr substrb sum sysdate tan tanh to_char text to_date to_label to_multi_byte to_number to_single_byte translate true trunc uid unlogged upper user userenv varchar varchar2 variance varying vsize xml"),
+    operatorChars: /^[*+\-%<>!=~]/,
+    dateSQL:    set("date time timestamp"),
+    support:    set("doubleQuote nCharCast zerolessFloat binaryNumber hexNumber")
+  });
+
+  // Created to support specific hive keywords
+  CodeMirror.defineMIME("text/x-hive", {
+    name: "sql",
+    keywords: set("select alter $elem$ $key$ $value$ add after all analyze and archive as asc before between binary both bucket buckets by cascade case cast change cluster clustered clusterstatus collection column columns comment compute concatenate continue create cross cursor data database databases dbproperties deferred delete delimited desc describe directory disable distinct distribute drop else enable end escaped exclusive exists explain export extended external false fetch fields fileformat first format formatted from full function functions grant group having hold_ddltime idxproperties if import in index indexes inpath inputdriver inputformat insert intersect into is items join keys lateral left like limit lines load local location lock locks mapjoin materialized minus msck no_drop nocompress not of offline on option or order out outer outputdriver outputformat overwrite partition partitioned partitions percent plus preserve procedure purge range rcfile read readonly reads rebuild recordreader recordwriter recover reduce regexp rename repair replace restrict revoke right rlike row schema schemas semi sequencefile serde serdeproperties set shared show show_database sort sorted ssl statistics stored streamtable table tables tablesample tblproperties temporary terminated textfile then tmp to touch transform trigger true unarchive undo union uniquejoin unlock update use using utc utc_tmestamp view when where while with"),
+    builtin: set("bool boolean long timestamp tinyint smallint bigint int float double date datetime unsigned string array struct map uniontype"),
+    atoms: set("false true null unknown"),
+    operatorChars: /^[*+\-%<>!=]/,
+    dateSQL: set("date timestamp"),
+    support: set("ODBCdotTable doubleQuote binaryNumber hexNumber")
+  });
+
+  CodeMirror.defineMIME("text/x-pgsql", {
+    name: "sql",
+    client: set("source"),
+    // http://www.postgresql.org/docs/9.5/static/sql-keywords-appendix.html
+    keywords: set(sqlKeywords + "a abort abs absent absolute access according action ada add admin after aggregate all allocate also always analyse analyze any are array array_agg array_max_cardinality asensitive assertion assignment asymmetric at atomic attribute attributes authorization avg backward base64 before begin begin_frame begin_partition bernoulli binary bit_length blob blocked bom both breadth c cache call called cardinality cascade cascaded case cast catalog catalog_name ceil ceiling chain characteristics characters character_length character_set_catalog character_set_name character_set_schema char_length check checkpoint class class_origin clob close cluster coalesce cobol collate collation collation_catalog collation_name collation_schema collect column columns column_name command_function command_function_code comment comments commit committed concurrently condition condition_number configuration conflict connect connection connection_name constraint constraints constraint_catalog constraint_name constraint_schema constructor contains content continue control conversion convert copy corr corresponding cost covar_pop covar_samp cross csv cube cume_dist current current_catalog current_date current_default_transform_group current_path current_role current_row current_schema current_time current_timestamp current_transform_group_for_type current_user cursor cursor_name cycle data database datalink datetime_interval_code datetime_interval_precision day db deallocate dec declare default defaults deferrable deferred defined definer degree delimiter delimiters dense_rank depth deref derived describe descriptor deterministic diagnostics dictionary disable discard disconnect dispatch dlnewcopy dlpreviouscopy dlurlcomplete dlurlcompleteonly dlurlcompletewrite dlurlpath dlurlpathonly dlurlpathwrite dlurlscheme dlurlserver dlvalue do document domain dynamic dynamic_function dynamic_function_code each element else empty enable encoding encrypted end end-exec end_frame end_partition enforced enum equals escape event every except exception exclude excluding exclusive exec execute exists exp explain expression extension external extract false family fetch file filter final first first_value flag float floor following for force foreign fortran forward found frame_row free freeze fs full function functions fusion g general generated get global go goto grant granted greatest grouping groups handler header hex hierarchy hold hour id identity if ignore ilike immediate immediately immutable implementation implicit import including increment indent index indexes indicator inherit inherits initially inline inner inout input insensitive instance instantiable instead integrity intersect intersection invoker isnull isolation k key key_member key_type label lag language large last last_value lateral lead leading leakproof least left length level library like_regex link listen ln load local localtime localtimestamp location locator lock locked logged lower m map mapping match matched materialized max maxvalue max_cardinality member merge message_length message_octet_length message_text method min minute minvalue mod mode modifies module month more move multiset mumps name names namespace national natural nchar nclob nesting new next nfc nfd nfkc nfkd nil no none normalize normalized nothing notify notnull nowait nth_value ntile null nullable nullif nulls number object occurrences_regex octets octet_length of off offset oids old only open operator option options ordering ordinality others out outer output over overlaps overlay overriding owned owner p pad parameter parameter_mode parameter_name parameter_ordinal_position parameter_specific_catalog parameter_specific_name parameter_specific_schema parser partial partition pascal passing passthrough password percent percentile_cont percentile_disc percent_rank period permission placing plans pli policy portion position position_regex power precedes preceding prepare prepared preserve primary prior privileges procedural procedure program public quote range rank read reads reassign recheck recovery recursive ref references referencing refresh regr_avgx regr_avgy regr_count regr_intercept regr_r2 regr_slope regr_sxx regr_sxy regr_syy reindex relative release rename repeatable replace replica requiring reset respect restart restore restrict result return returned_cardinality returned_length returned_octet_length returned_sqlstate returning returns revoke right role rollback rollup routine routine_catalog routine_name routine_schema row rows row_count row_number rule savepoint scale schema schema_name scope scope_catalog scope_name scope_schema scroll search second section security selective self sensitive sequence sequences serializable server server_name session session_user setof sets share show similar simple size skip snapshot some source space specific specifictype specific_name sql sqlcode sqlerror sqlexception sqlstate sqlwarning sqrt stable standalone start state statement static statistics stddev_pop stddev_samp stdin stdout storage strict strip structure style subclass_origin submultiset substring substring_regex succeeds sum symmetric sysid system system_time system_user t tables tablesample tablespace table_name temp template temporary then ties timezone_hour timezone_minute to token top_level_count trailing transaction transactions_committed transactions_rolled_back transaction_active transform transforms translate translate_regex translation treat trigger trigger_catalog trigger_name trigger_schema trim trim_array true truncate trusted type types uescape unbounded uncommitted under unencrypted unique unknown unlink unlisten unlogged unnamed unnest until untyped upper uri usage user user_defined_type_catalog user_defined_type_code user_defined_type_name user_defined_type_schema using vacuum valid validate validator value value_of varbinary variadic var_pop var_samp verbose version versioning view views volatile when whenever whitespace width_bucket window within work wrapper write xmlagg xmlattributes xmlbinary xmlcast xmlcomment xmlconcat xmldeclaration xmldocument xmlelement xmlexists xmlforest xmliterate xmlnamespaces xmlparse xmlpi xmlquery xmlroot xmlschema xmlserialize xmltable xmltext xmlvalidate year yes loop repeat"),
+    // http://www.postgresql.org/docs/9.5/static/datatype.html
+    builtin: set("bigint int8 bigserial serial8 bit varying varbit boolean bool box bytea character char varchar cidr circle date double precision float8 inet integer int int4 interval json jsonb line lseg macaddr money numeric decimal path pg_lsn point polygon real float4 smallint int2 smallserial serial2 serial serial4 text time without zone with timetz timestamp timestamptz tsquery tsvector txid_snapshot uuid xml"),
+    atoms: set("false true null unknown"),
+    operatorChars: /^[*+\-%<>!=&|^\/#@?~]/,
+    dateSQL: set("date time timestamp"),
+    support: set("ODBCdotTable decimallessFloat zerolessFloat binaryNumber hexNumber nCharCast charsetCast")
+  });
+
+  // Google's SQL-like query language, GQL
+  CodeMirror.defineMIME("text/x-gql", {
+    name: "sql",
+    keywords: set("ancestor and asc by contains desc descendant distinct from group has in is limit offset on order select superset where"),
+    atoms: set("false true"),
+    builtin: set("blob datetime first key __key__ string integer double boolean null"),
+    operatorChars: /^[*+\-%<>!=]/
+  });
+}());
+
+});
+
+/*
+  How Properties of Mime Types are used by SQL Mode
+  =================================================
+
+  keywords:
+    A list of keywords you want to be highlighted.
+  builtin:
+    A list of builtin types you want to be highlighted (if you want types to be of class "builtin" instead of "keyword").
+  operatorChars:
+    All characters that must be handled as operators.
+  client:
+    Commands parsed and executed by the client (not the server).
+  support:
+    A list of supported syntaxes which are not common, but are supported by more than 1 DBMS.
+    * ODBCdotTable: .tableName
+    * zerolessFloat: .1
+    * doubleQuote
+    * nCharCast: N'string'
+    * charsetCast: _utf8'string'
+    * commentHash: use # char for comments
+    * commentSlashSlash: use // for comments
+    * commentSpaceRequired: require a space after -- for comments
+  atoms:
+    Keywords that must be highlighted as atoms,. Some DBMS's support more atoms than others:
+    UNKNOWN, INFINITY, UNDERFLOW, NaN...
+  dateSQL:
+    Used for date/time SQL standard syntax, because not all DBMS's support same temporal types.
+*/
diff --git a/public/codemirror/mode/stex/index.html b/public/codemirror/mode/stex/index.html
new file mode 100644
index 000000000..14679da4f
--- /dev/null
+++ b/public/codemirror/mode/stex/index.html
@@ -0,0 +1,110 @@
+
+
+CodeMirror: sTeX mode
+
+
+
+
+
+
+
+
+
+

+
sTeX mode

+

+    
+
+    
MIME types defined: text/x-stex.

+
+    
Parsing/Highlighting Tests: normal,  verbose.

+
+  

diff --git a/public/codemirror/mode/stex/stex.js b/public/codemirror/mode/stex/stex.js
new file mode 100644
index 000000000..835ed46d1
--- /dev/null
+++ b/public/codemirror/mode/stex/stex.js
@@ -0,0 +1,251 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+/*
+ * Author: Constantin Jucovschi (c.jucovschi@jacobs-university.de)
+ * Licence: MIT
+ */
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineMode("stex", function() {
+    "use strict";
+
+    function pushCommand(state, command) {
+      state.cmdState.push(command);
+    }
+
+    function peekCommand(state) {
+      if (state.cmdState.length > 0) {
+        return state.cmdState[state.cmdState.length - 1];
+      } else {
+        return null;
+      }
+    }
+
+    function popCommand(state) {
+      var plug = state.cmdState.pop();
+      if (plug) {
+        plug.closeBracket();
+      }
+    }
+
+    // returns the non-default plugin closest to the end of the list
+    function getMostPowerful(state) {
+      var context = state.cmdState;
+      for (var i = context.length - 1; i >= 0; i--) {
+        var plug = context[i];
+        if (plug.name == "DEFAULT") {
+          continue;
+        }
+        return plug;
+      }
+      return { styleIdentifier: function() { return null; } };
+    }
+
+    function addPluginPattern(pluginName, cmdStyle, styles) {
+      return function () {
+        this.name = pluginName;
+        this.bracketNo = 0;
+        this.style = cmdStyle;
+        this.styles = styles;
+        this.argument = null;   // \begin and \end have arguments that follow. These are stored in the plugin
+
+        this.styleIdentifier = function() {
+          return this.styles[this.bracketNo - 1] || null;
+        };
+        this.openBracket = function() {
+          this.bracketNo++;
+          return "bracket";
+        };
+        this.closeBracket = function() {};
+      };
+    }
+
+    var plugins = {};
+
+    plugins["importmodule"] = addPluginPattern("importmodule", "tag", ["string", "builtin"]);
+    plugins["documentclass"] = addPluginPattern("documentclass", "tag", ["", "atom"]);
+    plugins["usepackage"] = addPluginPattern("usepackage", "tag", ["atom"]);
+    plugins["begin"] = addPluginPattern("begin", "tag", ["atom"]);
+    plugins["end"] = addPluginPattern("end", "tag", ["atom"]);
+
+    plugins["DEFAULT"] = function () {
+      this.name = "DEFAULT";
+      this.style = "tag";
+
+      this.styleIdentifier = this.openBracket = this.closeBracket = function() {};
+    };
+
+    function setState(state, f) {
+      state.f = f;
+    }
+
+    // called when in a normal (no environment) context
+    function normal(source, state) {
+      var plug;
+      // Do we look like '\command' ?  If so, attempt to apply the plugin 'command'
+      if (source.match(/^\\[a-zA-Z@]+/)) {
+        var cmdName = source.current().slice(1);
+        plug = plugins[cmdName] || plugins["DEFAULT"];
+        plug = new plug();
+        pushCommand(state, plug);
+        setState(state, beginParams);
+        return plug.style;
+      }
+
+      // escape characters
+      if (source.match(/^\\[$&%#{}_]/)) {
+        return "tag";
+      }
+
+      // white space control characters
+      if (source.match(/^\\[,;!\/\\]/)) {
+        return "tag";
+      }
+
+      // find if we're starting various math modes
+      if (source.match("\\[")) {
+        setState(state, function(source, state){ return inMathMode(source, state, "\\]"); });
+        return "keyword";
+      }
+      if (source.match("$$")) {
+        setState(state, function(source, state){ return inMathMode(source, state, "$$"); });
+        return "keyword";
+      }
+      if (source.match("$")) {
+        setState(state, function(source, state){ return inMathMode(source, state, "$"); });
+        return "keyword";
+      }
+
+      var ch = source.next();
+      if (ch == "%") {
+        source.skipToEnd();
+        return "comment";
+      } else if (ch == '}' || ch == ']') {
+        plug = peekCommand(state);
+        if (plug) {
+          plug.closeBracket(ch);
+          setState(state, beginParams);
+        } else {
+          return "error";
+        }
+        return "bracket";
+      } else if (ch == '{' || ch == '[') {
+        plug = plugins["DEFAULT"];
+        plug = new plug();
+        pushCommand(state, plug);
+        return "bracket";
+      } else if (/\d/.test(ch)) {
+        source.eatWhile(/[\w.%]/);
+        return "atom";
+      } else {
+        source.eatWhile(/[\w\-_]/);
+        plug = getMostPowerful(state);
+        if (plug.name == 'begin') {
+          plug.argument = source.current();
+        }
+        return plug.styleIdentifier();
+      }
+    }
+
+    function inMathMode(source, state, endModeSeq) {
+      if (source.eatSpace()) {
+        return null;
+      }
+      if (source.match(endModeSeq)) {
+        setState(state, normal);
+        return "keyword";
+      }
+      if (source.match(/^\\[a-zA-Z@]+/)) {
+        return "tag";
+      }
+      if (source.match(/^[a-zA-Z]+/)) {
+        return "variable-2";
+      }
+      // escape characters
+      if (source.match(/^\\[$&%#{}_]/)) {
+        return "tag";
+      }
+      // white space control characters
+      if (source.match(/^\\[,;!\/]/)) {
+        return "tag";
+      }
+      // special math-mode characters
+      if (source.match(/^[\^_&]/)) {
+        return "tag";
+      }
+      // non-special characters
+      if (source.match(/^[+\-<>|=,\/@!*:;'"`~#?]/)) {
+        return null;
+      }
+      if (source.match(/^(\d+\.\d*|\d*\.\d+|\d+)/)) {
+        return "number";
+      }
+      var ch = source.next();
+      if (ch == "{" || ch == "}" || ch == "[" || ch == "]" || ch == "(" || ch == ")") {
+        return "bracket";
+      }
+
+      if (ch == "%") {
+        source.skipToEnd();
+        return "comment";
+      }
+      return "error";
+    }
+
+    function beginParams(source, state) {
+      var ch = source.peek(), lastPlug;
+      if (ch == '{' || ch == '[') {
+        lastPlug = peekCommand(state);
+        lastPlug.openBracket(ch);
+        source.eat(ch);
+        setState(state, normal);
+        return "bracket";
+      }
+      if (/[ \t\r]/.test(ch)) {
+        source.eat(ch);
+        return null;
+      }
+      setState(state, normal);
+      popCommand(state);
+
+      return normal(source, state);
+    }
+
+    return {
+      startState: function() {
+        return {
+          cmdState: [],
+          f: normal
+        };
+      },
+      copyState: function(s) {
+        return {
+          cmdState: s.cmdState.slice(),
+          f: s.f
+        };
+      },
+      token: function(stream, state) {
+        return state.f(stream, state);
+      },
+      blankLine: function(state) {
+        state.f = normal;
+        state.cmdState.length = 0;
+      },
+      lineComment: "%"
+    };
+  });
+
+  CodeMirror.defineMIME("text/x-stex", "stex");
+  CodeMirror.defineMIME("text/x-latex", "stex");
+
+});
diff --git a/public/codemirror/mode/stex/test.js b/public/codemirror/mode/stex/test.js
new file mode 100644
index 000000000..22f027ec7
--- /dev/null
+++ b/public/codemirror/mode/stex/test.js
@@ -0,0 +1,123 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({tabSize: 4}, "stex");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)); }
+
+  MT("word",
+     "foo");
+
+  MT("twoWords",
+     "foo bar");
+
+  MT("beginEndDocument",
+     "[tag \\begin][bracket {][atom document][bracket }]",
+     "[tag \\end][bracket {][atom document][bracket }]");
+
+  MT("beginEndEquation",
+     "[tag \\begin][bracket {][atom equation][bracket }]",
+     "  E=mc^2",
+     "[tag \\end][bracket {][atom equation][bracket }]");
+
+  MT("beginModule",
+     "[tag \\begin][bracket {][atom module][bracket }[[]]]");
+
+  MT("beginModuleId",
+     "[tag \\begin][bracket {][atom module][bracket }[[]id=bbt-size[bracket ]]]");
+
+  MT("importModule",
+     "[tag \\importmodule][bracket [[][string b-b-t][bracket ]]{][builtin b-b-t][bracket }]");
+
+  MT("importModulePath",
+     "[tag \\importmodule][bracket [[][tag \\KWARCslides][bracket {][string dmath/en/cardinality][bracket }]]{][builtin card][bracket }]");
+
+  MT("psForPDF",
+     "[tag \\PSforPDF][bracket [[][atom 1][bracket ]]{]#1[bracket }]");
+
+  MT("comment",
+     "[comment % foo]");
+
+  MT("tagComment",
+     "[tag \\item][comment % bar]");
+
+  MT("commentTag",
+     " [comment % \\item]");
+
+  MT("commentLineBreak",
+     "[comment %]",
+     "foo");
+
+  MT("tagErrorCurly",
+     "[tag \\begin][error }][bracket {]");
+
+  MT("tagErrorSquare",
+     "[tag \\item][error ]]][bracket {]");
+
+  MT("commentCurly",
+     "[comment % }]");
+
+  MT("tagHash",
+     "the [tag \\#] key");
+
+  MT("tagNumber",
+     "a [tag \\$][atom 5] stetson");
+
+  MT("tagPercent",
+     "[atom 100][tag \\%] beef");
+
+  MT("tagAmpersand",
+     "L [tag \\&] N");
+
+  MT("tagUnderscore",
+     "foo[tag \\_]bar");
+
+  MT("tagBracketOpen",
+     "[tag \\emph][bracket {][tag \\{][bracket }]");
+
+  MT("tagBracketClose",
+     "[tag \\emph][bracket {][tag \\}][bracket }]");
+
+  MT("tagLetterNumber",
+     "section [tag \\S][atom 1]");
+
+  MT("textTagNumber",
+     "para [tag \\P][atom 2]");
+
+  MT("thinspace",
+     "x[tag \\,]y");
+
+  MT("thickspace",
+     "x[tag \\;]y");
+
+  MT("negativeThinspace",
+     "x[tag \\!]y");
+
+  MT("periodNotSentence",
+     "J.\\ L.\\ is");
+
+  MT("periodSentence",
+     "X[tag \\@]. The");
+
+  MT("italicCorrection",
+     "[bracket {][tag \\em] If[tag \\/][bracket }] I");
+
+  MT("tagBracket",
+     "[tag \\newcommand][bracket {][tag \\pop][bracket }]");
+
+  MT("inlineMathTagFollowedByNumber",
+     "[keyword $][tag \\pi][number 2][keyword $]");
+
+  MT("inlineMath",
+     "[keyword $][number 3][variable-2 x][tag ^][number 2.45]-[tag \\sqrt][bracket {][tag \\$\\alpha][bracket }] = [number 2][keyword $] other text");
+
+  MT("displayMath",
+     "More [keyword $$]\t[variable-2 S][tag ^][variable-2 n][tag \\sum] [variable-2 i][keyword $$] other text");
+
+  MT("mathWithComment",
+     "[keyword $][variable-2 x] [comment % $]",
+     "[variable-2 y][keyword $] other text");
+
+  MT("lineBreakArgument",
+    "[tag \\\\][bracket [[][atom 1cm][bracket ]]]");
+})();
diff --git a/public/codemirror/mode/stylus/index.html b/public/codemirror/mode/stylus/index.html
new file mode 100644
index 000000000..862c18f25
--- /dev/null
+++ b/public/codemirror/mode/stylus/index.html
@@ -0,0 +1,106 @@
+
+
+CodeMirror: Stylus mode
+
+
+
+
+
+
+
+
+
+
+
+

+
Stylus mode

+

+

+
+
+
MIME types defined: text/x-styl.

+
Created by Dmitry Kiselyov

+

diff --git a/public/codemirror/mode/stylus/stylus.js b/public/codemirror/mode/stylus/stylus.js
new file mode 100644
index 000000000..8d83a0180
--- /dev/null
+++ b/public/codemirror/mode/stylus/stylus.js
@@ -0,0 +1,769 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// Stylus mode created by Dmitry Kiselyov http://git.io/AaRB
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineMode("stylus", function(config) {
+    var indentUnit = config.indentUnit,
+        tagKeywords = keySet(tagKeywords_),
+        tagVariablesRegexp = /^(a|b|i|s|col|em)$/i,
+        propertyKeywords = keySet(propertyKeywords_),
+        nonStandardPropertyKeywords = keySet(nonStandardPropertyKeywords_),
+        valueKeywords = keySet(valueKeywords_),
+        colorKeywords = keySet(colorKeywords_),
+        documentTypes = keySet(documentTypes_),
+        documentTypesRegexp = wordRegexp(documentTypes_),
+        mediaFeatures = keySet(mediaFeatures_),
+        mediaTypes = keySet(mediaTypes_),
+        fontProperties = keySet(fontProperties_),
+        operatorsRegexp = /^\s*([.]{2,3}|&&|\|\||\*\*|[?!=:]?=|[-+*\/%<>]=?|\?:|\~)/,
+        wordOperatorKeywordsRegexp = wordRegexp(wordOperatorKeywords_),
+        blockKeywords = keySet(blockKeywords_),
+        vendorPrefixesRegexp = new RegExp(/^\-(moz|ms|o|webkit)-/i),
+        commonAtoms = keySet(commonAtoms_),
+        firstWordMatch = "",
+        states = {},
+        ch,
+        style,
+        type,
+        override;
+
+    /**
+     * Tokenizers
+     */
+    function tokenBase(stream, state) {
+      firstWordMatch = stream.string.match(/(^[\w-]+\s*=\s*$)|(^\s*[\w-]+\s*=\s*[\w-])|(^\s*(\.|#|@|\$|\&|\[|\d|\+|::?|\{|\>|~|\/)?\s*[\w-]*([a-z0-9-]|\*|\/\*)(\(|,)?)/);
+      state.context.line.firstWord = firstWordMatch ? firstWordMatch[0].replace(/^\s*/, "") : "";
+      state.context.line.indent = stream.indentation();
+      ch = stream.peek();
+
+      // Line comment
+      if (stream.match("//")) {
+        stream.skipToEnd();
+        return ["comment", "comment"];
+      }
+      // Block comment
+      if (stream.match("/*")) {
+        state.tokenize = tokenCComment;
+        return tokenCComment(stream, state);
+      }
+      // String
+      if (ch == "\"" || ch == "'") {
+        stream.next();
+        state.tokenize = tokenString(ch);
+        return state.tokenize(stream, state);
+      }
+      // Def
+      if (ch == "@") {
+        stream.next();
+        stream.eatWhile(/[\w\\-]/);
+        return ["def", stream.current()];
+      }
+      // ID selector or Hex color
+      if (ch == "#") {
+        stream.next();
+        // Hex color
+        if (stream.match(/^[0-9a-f]{6}|[0-9a-f]{3}/i)) {
+          return ["atom", "atom"];
+        }
+        // ID selector
+        if (stream.match(/^[a-z][\w-]*/i)) {
+          return ["builtin", "hash"];
+        }
+      }
+      // Vendor prefixes
+      if (stream.match(vendorPrefixesRegexp)) {
+        return ["meta", "vendor-prefixes"];
+      }
+      // Numbers
+      if (stream.match(/^-?[0-9]?\.?[0-9]/)) {
+        stream.eatWhile(/[a-z%]/i);
+        return ["number", "unit"];
+      }
+      // !important|optional
+      if (ch == "!") {
+        stream.next();
+        return [stream.match(/^(important|optional)/i) ? "keyword": "operator", "important"];
+      }
+      // Class
+      if (ch == "." && stream.match(/^\.[a-z][\w-]*/i)) {
+        return ["qualifier", "qualifier"];
+      }
+      // url url-prefix domain regexp
+      if (stream.match(documentTypesRegexp)) {
+        if (stream.peek() == "(") state.tokenize = tokenParenthesized;
+        return ["property", "word"];
+      }
+      // Mixins / Functions
+      if (stream.match(/^[a-z][\w-]*\(/i)) {
+        stream.backUp(1);
+        return ["keyword", "mixin"];
+      }
+      // Block mixins
+      if (stream.match(/^(\+|-)[a-z][\w-]*\(/i)) {
+        stream.backUp(1);
+        return ["keyword", "block-mixin"];
+      }
+      // Parent Reference BEM naming
+      if (stream.string.match(/^\s*&/) && stream.match(/^[-_]+[a-z][\w-]*/)) {
+        return ["qualifier", "qualifier"];
+      }
+      // / Root Reference & Parent Reference
+      if (stream.match(/^(\/|&)(-|_|:|\.|#|[a-z])/)) {
+        stream.backUp(1);
+        return ["variable-3", "reference"];
+      }
+      if (stream.match(/^&{1}\s*$/)) {
+        return ["variable-3", "reference"];
+      }
+      // Word operator
+      if (stream.match(wordOperatorKeywordsRegexp)) {
+        return ["operator", "operator"];
+      }
+      // Word
+      if (stream.match(/^\$?[-_]*[a-z0-9]+[\w-]*/i)) {
+        // Variable
+        if (stream.match(/^(\.|\[)[\w-\'\"\]]+/i, false)) {
+          if (!wordIsTag(stream.current())) {
+            stream.match(/\./);
+            return ["variable-2", "variable-name"];
+          }
+        }
+        return ["variable-2", "word"];
+      }
+      // Operators
+      if (stream.match(operatorsRegexp)) {
+        return ["operator", stream.current()];
+      }
+      // Delimiters
+      if (/[:;,{}\[\]\(\)]/.test(ch)) {
+        stream.next();
+        return [null, ch];
+      }
+      // Non-detected items
+      stream.next();
+      return [null, null];
+    }
+
+    /**
+     * Token comment
+     */
+    function tokenCComment(stream, state) {
+      var maybeEnd = false, ch;
+      while ((ch = stream.next()) != null) {
+        if (maybeEnd && ch == "/") {
+          state.tokenize = null;
+          break;
+        }
+        maybeEnd = (ch == "*");
+      }
+      return ["comment", "comment"];
+    }
+
+    /**
+     * Token string
+     */
+    function tokenString(quote) {
+      return function(stream, state) {
+        var escaped = false, ch;
+        while ((ch = stream.next()) != null) {
+          if (ch == quote && !escaped) {
+            if (quote == ")") stream.backUp(1);
+            break;
+          }
+          escaped = !escaped && ch == "\\";
+        }
+        if (ch == quote || !escaped && quote != ")") state.tokenize = null;
+        return ["string", "string"];
+      };
+    }
+
+    /**
+     * Token parenthesized
+     */
+    function tokenParenthesized(stream, state) {
+      stream.next(); // Must be "("
+      if (!stream.match(/\s*[\"\')]/, false))
+        state.tokenize = tokenString(")");
+      else
+        state.tokenize = null;
+      return [null, "("];
+    }
+
+    /**
+     * Context management
+     */
+    function Context(type, indent, prev, line) {
+      this.type = type;
+      this.indent = indent;
+      this.prev = prev;
+      this.line = line || {firstWord: "", indent: 0};
+    }
+
+    function pushContext(state, stream, type, indent) {
+      indent = indent >= 0 ? indent : indentUnit;
+      state.context = new Context(type, stream.indentation() + indent, state.context);
+      return type;
+    }
+
+    function popContext(state, currentIndent) {
+      var contextIndent = state.context.indent - indentUnit;
+      currentIndent = currentIndent || false;
+      state.context = state.context.prev;
+      if (currentIndent) state.context.indent = contextIndent;
+      return state.context.type;
+    }
+
+    function pass(type, stream, state) {
+      return states[state.context.type](type, stream, state);
+    }
+
+    function popAndPass(type, stream, state, n) {
+      for (var i = n || 1; i > 0; i--)
+        state.context = state.context.prev;
+      return pass(type, stream, state);
+    }
+
+
+    /**
+     * Parser
+     */
+    function wordIsTag(word) {
+      return word.toLowerCase() in tagKeywords;
+    }
+
+    function wordIsProperty(word) {
+      word = word.toLowerCase();
+      return word in propertyKeywords || word in fontProperties;
+    }
+
+    function wordIsBlock(word) {
+      return word.toLowerCase() in blockKeywords;
+    }
+
+    function wordIsVendorPrefix(word) {
+      return word.toLowerCase().match(vendorPrefixesRegexp);
+    }
+
+    function wordAsValue(word) {
+      var wordLC = word.toLowerCase();
+      var override = "variable-2";
+      if (wordIsTag(word)) override = "tag";
+      else if (wordIsBlock(word)) override = "block-keyword";
+      else if (wordIsProperty(word)) override = "property";
+      else if (wordLC in valueKeywords || wordLC in commonAtoms) override = "atom";
+      else if (wordLC == "return" || wordLC in colorKeywords) override = "keyword";
+
+      // Font family
+      else if (word.match(/^[A-Z]/)) override = "string";
+      return override;
+    }
+
+    function typeIsBlock(type, stream) {
+      return ((endOfLine(stream) && (type == "{" || type == "]" || type == "hash" || type == "qualifier")) || type == "block-mixin");
+    }
+
+    function typeIsInterpolation(type, stream) {
+      return type == "{" && stream.match(/^\s*\$?[\w-]+/i, false);
+    }
+
+    function typeIsPseudo(type, stream) {
+      return type == ":" && stream.match(/^[a-z-]+/, false);
+    }
+
+    function startOfLine(stream) {
+      return stream.sol() || stream.string.match(new RegExp("^\\s*" + escapeRegExp(stream.current())));
+    }
+
+    function endOfLine(stream) {
+      return stream.eol() || stream.match(/^\s*$/, false);
+    }
+
+    function firstWordOfLine(line) {
+      var re = /^\s*[-_]*[a-z0-9]+[\w-]*/i;
+      var result = typeof line == "string" ? line.match(re) : line.string.match(re);
+      return result ? result[0].replace(/^\s*/, "") : "";
+    }
+
+
+    /**
+     * Block
+     */
+    states.block = function(type, stream, state) {
+      if ((type == "comment" && startOfLine(stream)) ||
+          (type == "," && endOfLine(stream)) ||
+          type == "mixin") {
+        return pushContext(state, stream, "block", 0);
+      }
+      if (typeIsInterpolation(type, stream)) {
+        return pushContext(state, stream, "interpolation");
+      }
+      if (endOfLine(stream) && type == "]") {
+        if (!/^\s*(\.|#|:|\[|\*|&)/.test(stream.string) && !wordIsTag(firstWordOfLine(stream))) {
+          return pushContext(state, stream, "block", 0);
+        }
+      }
+      if (typeIsBlock(type, stream, state)) {
+        return pushContext(state, stream, "block");
+      }
+      if (type == "}" && endOfLine(stream)) {
+        return pushContext(state, stream, "block", 0);
+      }
+      if (type == "variable-name") {
+        if (stream.string.match(/^\s?\$[\w-\.\[\]\'\"]+$/) || wordIsBlock(firstWordOfLine(stream))) {
+          return pushContext(state, stream, "variableName");
+        }
+        else {
+          return pushContext(state, stream, "variableName", 0);
+        }
+      }
+      if (type == "=") {
+        if (!endOfLine(stream) && !wordIsBlock(firstWordOfLine(stream))) {
+          return pushContext(state, stream, "block", 0);
+        }
+        return pushContext(state, stream, "block");
+      }
+      if (type == "*") {
+        if (endOfLine(stream) || stream.match(/\s*(,|\.|#|\[|:|{)/,false)) {
+          override = "tag";
+          return pushContext(state, stream, "block");
+        }
+      }
+      if (typeIsPseudo(type, stream)) {
+        return pushContext(state, stream, "pseudo");
+      }
+      if (/@(font-face|media|supports|(-moz-)?document)/.test(type)) {
+        return pushContext(state, stream, endOfLine(stream) ? "block" : "atBlock");
+      }
+      if (/@(-(moz|ms|o|webkit)-)?keyframes$/.test(type)) {
+        return pushContext(state, stream, "keyframes");
+      }
+      if (/@extends?/.test(type)) {
+        return pushContext(state, stream, "extend", 0);
+      }
+      if (type && type.charAt(0) == "@") {
+
+        // Property Lookup
+        if (stream.indentation() > 0 && wordIsProperty(stream.current().slice(1))) {
+          override = "variable-2";
+          return "block";
+        }
+        if (/(@import|@require|@charset)/.test(type)) {
+          return pushContext(state, stream, "block", 0);
+        }
+        return pushContext(state, stream, "block");
+      }
+      if (type == "reference" && endOfLine(stream)) {
+        return pushContext(state, stream, "block");
+      }
+      if (type == "(") {
+        return pushContext(state, stream, "parens");
+      }
+
+      if (type == "vendor-prefixes") {
+        return pushContext(state, stream, "vendorPrefixes");
+      }
+      if (type == "word") {
+        var word = stream.current();
+        override = wordAsValue(word);
+
+        if (override == "property") {
+          if (startOfLine(stream)) {
+            return pushContext(state, stream, "block", 0);
+          } else {
+            override = "atom";
+            return "block";
+          }
+        }
+
+        if (override == "tag") {
+
+          // tag is a css value
+          if (/embed|menu|pre|progress|sub|table/.test(word)) {
+            if (wordIsProperty(firstWordOfLine(stream))) {
+              override = "atom";
+              return "block";
+            }
+          }
+
+          // tag is an attribute
+          if (stream.string.match(new RegExp("\\[\\s*" + word + "|" + word +"\\s*\\]"))) {
+            override = "atom";
+            return "block";
+          }
+
+          // tag is a variable
+          if (tagVariablesRegexp.test(word)) {
+            if ((startOfLine(stream) && stream.string.match(/=/)) ||
+                (!startOfLine(stream) &&
+                 !stream.string.match(/^(\s*\.|#|\&|\[|\/|>|\*)/) &&
+                 !wordIsTag(firstWordOfLine(stream)))) {
+              override = "variable-2";
+              if (wordIsBlock(firstWordOfLine(stream)))  return "block";
+              return pushContext(state, stream, "block", 0);
+            }
+          }
+
+          if (endOfLine(stream)) return pushContext(state, stream, "block");
+        }
+        if (override == "block-keyword") {
+          override = "keyword";
+
+          // Postfix conditionals
+          if (stream.current(/(if|unless)/) && !startOfLine(stream)) {
+            return "block";
+          }
+          return pushContext(state, stream, "block");
+        }
+        if (word == "return") return pushContext(state, stream, "block", 0);
+
+        // Placeholder selector
+        if (override == "variable-2" && stream.string.match(/^\s?\$[\w-\.\[\]\'\"]+$/)) {
+          return pushContext(state, stream, "block");
+        }
+      }
+      return state.context.type;
+    };
+
+
+    /**
+     * Parens
+     */
+    states.parens = function(type, stream, state) {
+      if (type == "(") return pushContext(state, stream, "parens");
+      if (type == ")") {
+        if (state.context.prev.type == "parens") {
+          return popContext(state);
+        }
+        if ((stream.string.match(/^[a-z][\w-]*\(/i) && endOfLine(stream)) ||
+            wordIsBlock(firstWordOfLine(stream)) ||
+            /(\.|#|:|\[|\*|&|>|~|\+|\/)/.test(firstWordOfLine(stream)) ||
+            (!stream.string.match(/^-?[a-z][\w-\.\[\]\'\"]*\s*=/) &&
+             wordIsTag(firstWordOfLine(stream)))) {
+          return pushContext(state, stream, "block");
+        }
+        if (stream.string.match(/^[\$-]?[a-z][\w-\.\[\]\'\"]*\s*=/) ||
+            stream.string.match(/^\s*(\(|\)|[0-9])/) ||
+            stream.string.match(/^\s+[a-z][\w-]*\(/i) ||
+            stream.string.match(/^\s+[\$-]?[a-z]/i)) {
+          return pushContext(state, stream, "block", 0);
+        }
+        if (endOfLine(stream)) return pushContext(state, stream, "block");
+        else return pushContext(state, stream, "block", 0);
+      }
+      if (type && type.charAt(0) == "@" && wordIsProperty(stream.current().slice(1))) {
+        override = "variable-2";
+      }
+      if (type == "word") {
+        var word = stream.current();
+        override = wordAsValue(word);
+        if (override == "tag" && tagVariablesRegexp.test(word)) {
+          override = "variable-2";
+        }
+        if (override == "property" || word == "to") override = "atom";
+      }
+      if (type == "variable-name") {
+        return pushContext(state, stream, "variableName");
+      }
+      if (typeIsPseudo(type, stream)) {
+        return pushContext(state, stream, "pseudo");
+      }
+      return state.context.type;
+    };
+
+
+    /**
+     * Vendor prefixes
+     */
+    states.vendorPrefixes = function(type, stream, state) {
+      if (type == "word") {
+        override = "property";
+        return pushContext(state, stream, "block", 0);
+      }
+      return popContext(state);
+    };
+
+
+    /**
+     * Pseudo
+     */
+    states.pseudo = function(type, stream, state) {
+      if (!wordIsProperty(firstWordOfLine(stream.string))) {
+        stream.match(/^[a-z-]+/);
+        override = "variable-3";
+        if (endOfLine(stream)) return pushContext(state, stream, "block");
+        return popContext(state);
+      }
+      return popAndPass(type, stream, state);
+    };
+
+
+    /**
+     * atBlock
+     */
+    states.atBlock = function(type, stream, state) {
+      if (type == "(") return pushContext(state, stream, "atBlock_parens");
+      if (typeIsBlock(type, stream, state)) {
+        return pushContext(state, stream, "block");
+      }
+      if (typeIsInterpolation(type, stream)) {
+        return pushContext(state, stream, "interpolation");
+      }
+      if (type == "word") {
+        var word = stream.current().toLowerCase();
+        if (/^(only|not|and|or)$/.test(word))
+          override = "keyword";
+        else if (documentTypes.hasOwnProperty(word))
+          override = "tag";
+        else if (mediaTypes.hasOwnProperty(word))
+          override = "attribute";
+        else if (mediaFeatures.hasOwnProperty(word))
+          override = "property";
+        else if (nonStandardPropertyKeywords.hasOwnProperty(word))
+          override = "string-2";
+        else override = wordAsValue(stream.current());
+        if (override == "tag" && endOfLine(stream)) {
+          return pushContext(state, stream, "block");
+        }
+      }
+      if (type == "operator" && /^(not|and|or)$/.test(stream.current())) {
+        override = "keyword";
+      }
+      return state.context.type;
+    };
+
+    states.atBlock_parens = function(type, stream, state) {
+      if (type == "{" || type == "}") return state.context.type;
+      if (type == ")") {
+        if (endOfLine(stream)) return pushContext(state, stream, "block");
+        else return pushContext(state, stream, "atBlock");
+      }
+      if (type == "word") {
+        var word = stream.current().toLowerCase();
+        override = wordAsValue(word);
+        if (/^(max|min)/.test(word)) override = "property";
+        if (override == "tag") {
+          tagVariablesRegexp.test(word) ? override = "variable-2" : override = "atom";
+        }
+        return state.context.type;
+      }
+      return states.atBlock(type, stream, state);
+    };
+
+
+    /**
+     * Keyframes
+     */
+    states.keyframes = function(type, stream, state) {
+      if (stream.indentation() == "0" && ((type == "}" && startOfLine(stream)) || type == "]" || type == "hash"
+                                          || type == "qualifier" || wordIsTag(stream.current()))) {
+        return popAndPass(type, stream, state);
+      }
+      if (type == "{") return pushContext(state, stream, "keyframes");
+      if (type == "}") {
+        if (startOfLine(stream)) return popContext(state, true);
+        else return pushContext(state, stream, "keyframes");
+      }
+      if (type == "unit" && /^[0-9]+\%$/.test(stream.current())) {
+        return pushContext(state, stream, "keyframes");
+      }
+      if (type == "word") {
+        override = wordAsValue(stream.current());
+        if (override == "block-keyword") {
+          override = "keyword";
+          return pushContext(state, stream, "keyframes");
+        }
+      }
+      if (/@(font-face|media|supports|(-moz-)?document)/.test(type)) {
+        return pushContext(state, stream, endOfLine(stream) ? "block" : "atBlock");
+      }
+      if (type == "mixin") {
+        return pushContext(state, stream, "block", 0);
+      }
+      return state.context.type;
+    };
+
+
+    /**
+     * Interpolation
+     */
+    states.interpolation = function(type, stream, state) {
+      if (type == "{") popContext(state) && pushContext(state, stream, "block");
+      if (type == "}") {
+        if (stream.string.match(/^\s*(\.|#|:|\[|\*|&|>|~|\+|\/)/i) ||
+            (stream.string.match(/^\s*[a-z]/i) && wordIsTag(firstWordOfLine(stream)))) {
+          return pushContext(state, stream, "block");
+        }
+        if (!stream.string.match(/^(\{|\s*\&)/) ||
+            stream.match(/\s*[\w-]/,false)) {
+          return pushContext(state, stream, "block", 0);
+        }
+        return pushContext(state, stream, "block");
+      }
+      if (type == "variable-name") {
+        return pushContext(state, stream, "variableName", 0);
+      }
+      if (type == "word") {
+        override = wordAsValue(stream.current());
+        if (override == "tag") override = "atom";
+      }
+      return state.context.type;
+    };
+
+
+    /**
+     * Extend/s
+     */
+    states.extend = function(type, stream, state) {
+      if (type == "[" || type == "=") return "extend";
+      if (type == "]") return popContext(state);
+      if (type == "word") {
+        override = wordAsValue(stream.current());
+        return "extend";
+      }
+      return popContext(state);
+    };
+
+
+    /**
+     * Variable name
+     */
+    states.variableName = function(type, stream, state) {
+      if (type == "string" || type == "[" || type == "]" || stream.current().match(/^(\.|\$)/)) {
+        if (stream.current().match(/^\.[\w-]+/i)) override = "variable-2";
+        return "variableName";
+      }
+      return popAndPass(type, stream, state);
+    };
+
+
+    return {
+      startState: function(base) {
+        return {
+          tokenize: null,
+          state: "block",
+          context: new Context("block", base || 0, null)
+        };
+      },
+      token: function(stream, state) {
+        if (!state.tokenize && stream.eatSpace()) return null;
+        style = (state.tokenize || tokenBase)(stream, state);
+        if (style && typeof style == "object") {
+          type = style[1];
+          style = style[0];
+        }
+        override = style;
+        state.state = states[state.state](type, stream, state);
+        return override;
+      },
+      indent: function(state, textAfter, line) {
+
+        var cx = state.context,
+            ch = textAfter && textAfter.charAt(0),
+            indent = cx.indent,
+            lineFirstWord = firstWordOfLine(textAfter),
+            lineIndent = line.length - line.replace(/^\s*/, "").length,
+            prevLineFirstWord = state.context.prev ? state.context.prev.line.firstWord : "",
+            prevLineIndent = state.context.prev ? state.context.prev.line.indent : lineIndent;
+
+        if (cx.prev &&
+            (ch == "}" && (cx.type == "block" || cx.type == "atBlock" || cx.type == "keyframes") ||
+             ch == ")" && (cx.type == "parens" || cx.type == "atBlock_parens") ||
+             ch == "{" && (cx.type == "at"))) {
+          indent = cx.indent - indentUnit;
+          cx = cx.prev;
+        } else if (!(/(\})/.test(ch))) {
+          if (/@|\$|\d/.test(ch) ||
+              /^\{/.test(textAfter) ||
+/^\s*\/(\/|\*)/.test(textAfter) ||
+              /^\s*\/\*/.test(prevLineFirstWord) ||
+              /^\s*[\w-\.\[\]\'\"]+\s*(\?|:|\+)?=/i.test(textAfter) ||
+/^(\+|-)?[a-z][\w-]*\(/i.test(textAfter) ||
+/^return/.test(textAfter) ||
+              wordIsBlock(lineFirstWord)) {
+            indent = lineIndent;
+          } else if (/(\.|#|:|\[|\*|&|>|~|\+|\/)/.test(ch) || wordIsTag(lineFirstWord)) {
+            if (/\,\s*$/.test(prevLineFirstWord)) {
+              indent = prevLineIndent;
+            } else if (/^\s+/.test(line) && (/(\.|#|:|\[|\*|&|>|~|\+|\/)/.test(prevLineFirstWord) || wordIsTag(prevLineFirstWord))) {
+              indent = lineIndent <= prevLineIndent ? prevLineIndent : prevLineIndent + indentUnit;
+            } else {
+              indent = lineIndent;
+            }
+          } else if (!/,\s*$/.test(line) && (wordIsVendorPrefix(lineFirstWord) || wordIsProperty(lineFirstWord))) {
+            if (wordIsBlock(prevLineFirstWord)) {
+              indent = lineIndent <= prevLineIndent ? prevLineIndent : prevLineIndent + indentUnit;
+            } else if (/^\{/.test(prevLineFirstWord)) {
+              indent = lineIndent <= prevLineIndent ? lineIndent : prevLineIndent + indentUnit;
+            } else if (wordIsVendorPrefix(prevLineFirstWord) || wordIsProperty(prevLineFirstWord)) {
+              indent = lineIndent >= prevLineIndent ? prevLineIndent : lineIndent;
+            } else if (/^(\.|#|:|\[|\*|&|@|\+|\-|>|~|\/)/.test(prevLineFirstWord) ||
+                      /=\s*$/.test(prevLineFirstWord) ||
+                      wordIsTag(prevLineFirstWord) ||
+                      /^\$[\w-\.\[\]\'\"]/.test(prevLineFirstWord)) {
+              indent = prevLineIndent + indentUnit;
+            } else {
+              indent = lineIndent;
+            }
+          }
+        }
+        return indent;
+      },
+      electricChars: "}",
+      lineComment: "//",
+      fold: "indent"
+    };
+  });
+
+  // developer.mozilla.org/en-US/docs/Web/HTML/Element
+  var tagKeywords_ = ["a","abbr","address","area","article","aside","audio", "b", "base","bdi", "bdo","bgsound","blockquote","body","br","button","canvas","caption","cite", "code","col","colgroup","data","datalist","dd","del","details","dfn","div", "dl","dt","em","embed","fieldset","figcaption","figure","footer","form","h1", "h2","h3","h4","h5","h6","head","header","hgroup","hr","html","i","iframe", "img","input","ins","kbd","keygen","label","legend","li","link","main","map", "mark","marquee","menu","menuitem","meta","meter","nav","nobr","noframes", "noscript","object","ol","optgroup","option","output","p","param","pre", "progress","q","rp","rt","ruby","s","samp","script","section","select", "small","source","span","strong","style","sub","summary","sup","table","tbody","td","textarea","tfoot","th","thead","time","tr","track", "u","ul","var","video"];
+
+  // github.com/codemirror/CodeMirror/blob/master/mode/css/css.js
+  var documentTypes_ = ["domain", "regexp", "url", "url-prefix"];
+  var mediaTypes_ = ["all","aural","braille","handheld","print","projection","screen","tty","tv","embossed"];
+  var mediaFeatures_ = ["width","min-width","max-width","height","min-height","max-height","device-width","min-device-width","max-device-width","device-height","min-device-height","max-device-height","aspect-ratio","min-aspect-ratio","max-aspect-ratio","device-aspect-ratio","min-device-aspect-ratio","max-device-aspect-ratio","color","min-color","max-color","color-index","min-color-index","max-color-index","monochrome","min-monochrome","max-monochrome","resolution","min-resolution","max-resolution","scan","grid"];
+  var propertyKeywords_ = ["align-content","align-items","align-self","alignment-adjust","alignment-baseline","anchor-point","animation","animation-delay","animation-direction","animation-duration","animation-fill-mode","animation-iteration-count","animation-name","animation-play-state","animation-timing-function","appearance","azimuth","backface-visibility","background","background-attachment","background-clip","background-color","background-image","background-origin","background-position","background-repeat","background-size","baseline-shift","binding","bleed","bookmark-label","bookmark-level","bookmark-state","bookmark-target","border","border-bottom","border-bottom-color","border-bottom-left-radius","border-bottom-right-radius","border-bottom-style","border-bottom-width","border-collapse","border-color","border-image","border-image-outset","border-image-repeat","border-image-slice","border-image-source","border-image-width","border-left","border-left-color","border-left-style","border-left-width","border-radius","border-right","border-right-color","border-right-style","border-right-width","border-spacing","border-style","border-top","border-top-color","border-top-left-radius","border-top-right-radius","border-top-style","border-top-width","border-width","bottom","box-decoration-break","box-shadow","box-sizing","break-after","break-before","break-inside","caption-side","clear","clip","color","color-profile","column-count","column-fill","column-gap","column-rule","column-rule-color","column-rule-style","column-rule-width","column-span","column-width","columns","content","counter-increment","counter-reset","crop","cue","cue-after","cue-before","cursor","direction","display","dominant-baseline","drop-initial-after-adjust","drop-initial-after-align","drop-initial-before-adjust","drop-initial-before-align","drop-initial-size","drop-initial-value","elevation","empty-cells","fit","fit-position","flex","flex-basis","flex-direction","flex-flow","flex-grow","flex-shrink","flex-wrap","float","float-offset","flow-from","flow-into","font","font-feature-settings","font-family","font-kerning","font-language-override","font-size","font-size-adjust","font-stretch","font-style","font-synthesis","font-variant","font-variant-alternates","font-variant-caps","font-variant-east-asian","font-variant-ligatures","font-variant-numeric","font-variant-position","font-weight","grid","grid-area","grid-auto-columns","grid-auto-flow","grid-auto-position","grid-auto-rows","grid-column","grid-column-end","grid-column-start","grid-row","grid-row-end","grid-row-start","grid-template","grid-template-areas","grid-template-columns","grid-template-rows","hanging-punctuation","height","hyphens","icon","image-orientation","image-rendering","image-resolution","inline-box-align","justify-content","left","letter-spacing","line-break","line-height","line-stacking","line-stacking-ruby","line-stacking-shift","line-stacking-strategy","list-style","list-style-image","list-style-position","list-style-type","margin","margin-bottom","margin-left","margin-right","margin-top","marker-offset","marks","marquee-direction","marquee-loop","marquee-play-count","marquee-speed","marquee-style","max-height","max-width","min-height","min-width","move-to","nav-down","nav-index","nav-left","nav-right","nav-up","object-fit","object-position","opacity","order","orphans","outline","outline-color","outline-offset","outline-style","outline-width","overflow","overflow-style","overflow-wrap","overflow-x","overflow-y","padding","padding-bottom","padding-left","padding-right","padding-top","page","page-break-after","page-break-before","page-break-inside","page-policy","pause","pause-after","pause-before","perspective","perspective-origin","pitch","pitch-range","play-during","position","presentation-level","punctuation-trim","quotes","region-break-after","region-break-before","region-break-inside","region-fragment","rendering-intent","resize","rest","rest-after","rest-before","richness","right","rotation","rotation-point","ruby-align","ruby-overhang","ruby-position","ruby-span","shape-image-threshold","shape-inside","shape-margin","shape-outside","size","speak","speak-as","speak-header","speak-numeral","speak-punctuation","speech-rate","stress","string-set","tab-size","table-layout","target","target-name","target-new","target-position","text-align","text-align-last","text-decoration","text-decoration-color","text-decoration-line","text-decoration-skip","text-decoration-style","text-emphasis","text-emphasis-color","text-emphasis-position","text-emphasis-style","text-height","text-indent","text-justify","text-outline","text-overflow","text-shadow","text-size-adjust","text-space-collapse","text-transform","text-underline-position","text-wrap","top","transform","transform-origin","transform-style","transition","transition-delay","transition-duration","transition-property","transition-timing-function","unicode-bidi","vertical-align","visibility","voice-balance","voice-duration","voice-family","voice-pitch","voice-range","voice-rate","voice-stress","voice-volume","volume","white-space","widows","width","will-change","word-break","word-spacing","word-wrap","z-index","clip-path","clip-rule","mask","enable-background","filter","flood-color","flood-opacity","lighting-color","stop-color","stop-opacity","pointer-events","color-interpolation","color-interpolation-filters","color-rendering","fill","fill-opacity","fill-rule","image-rendering","marker","marker-end","marker-mid","marker-start","shape-rendering","stroke","stroke-dasharray","stroke-dashoffset","stroke-linecap","stroke-linejoin","stroke-miterlimit","stroke-opacity","stroke-width","text-rendering","baseline-shift","dominant-baseline","glyph-orientation-horizontal","glyph-orientation-vertical","text-anchor","writing-mode","font-smoothing","osx-font-smoothing"];
+  var nonStandardPropertyKeywords_ = ["scrollbar-arrow-color","scrollbar-base-color","scrollbar-dark-shadow-color","scrollbar-face-color","scrollbar-highlight-color","scrollbar-shadow-color","scrollbar-3d-light-color","scrollbar-track-color","shape-inside","searchfield-cancel-button","searchfield-decoration","searchfield-results-button","searchfield-results-decoration","zoom"];
+  var fontProperties_ = ["font-family","src","unicode-range","font-variant","font-feature-settings","font-stretch","font-weight","font-style"];
+  var colorKeywords_ = ["aliceblue","antiquewhite","aqua","aquamarine","azure","beige","bisque","black","blanchedalmond","blue","blueviolet","brown","burlywood","cadetblue","chartreuse","chocolate","coral","cornflowerblue","cornsilk","crimson","cyan","darkblue","darkcyan","darkgoldenrod","darkgray","darkgreen","darkkhaki","darkmagenta","darkolivegreen","darkorange","darkorchid","darkred","darksalmon","darkseagreen","darkslateblue","darkslategray","darkturquoise","darkviolet","deeppink","deepskyblue","dimgray","dodgerblue","firebrick","floralwhite","forestgreen","fuchsia","gainsboro","ghostwhite","gold","goldenrod","gray","grey","green","greenyellow","honeydew","hotpink","indianred","indigo","ivory","khaki","lavender","lavenderblush","lawngreen","lemonchiffon","lightblue","lightcoral","lightcyan","lightgoldenrodyellow","lightgray","lightgreen","lightpink","lightsalmon","lightseagreen","lightskyblue","lightslategray","lightsteelblue","lightyellow","lime","limegreen","linen","magenta","maroon","mediumaquamarine","mediumblue","mediumorchid","mediumpurple","mediumseagreen","mediumslateblue","mediumspringgreen","mediumturquoise","mediumvioletred","midnightblue","mintcream","mistyrose","moccasin","navajowhite","navy","oldlace","olive","olivedrab","orange","orangered","orchid","palegoldenrod","palegreen","paleturquoise","palevioletred","papayawhip","peachpuff","peru","pink","plum","powderblue","purple","rebeccapurple","red","rosybrown","royalblue","saddlebrown","salmon","sandybrown","seagreen","seashell","sienna","silver","skyblue","slateblue","slategray","snow","springgreen","steelblue","tan","teal","thistle","tomato","turquoise","violet","wheat","white","whitesmoke","yellow","yellowgreen"];
+  var valueKeywords_ = ["above","absolute","activeborder","additive","activecaption","afar","after-white-space","ahead","alias","all","all-scroll","alphabetic","alternate","always","amharic","amharic-abegede","antialiased","appworkspace","arabic-indic","armenian","asterisks","attr","auto","avoid","avoid-column","avoid-page","avoid-region","background","backwards","baseline","below","bidi-override","binary","bengali","blink","block","block-axis","bold","bolder","border","border-box","both","bottom","break","break-all","break-word","bullets","button","button-bevel","buttonface","buttonhighlight","buttonshadow","buttontext","calc","cambodian","capitalize","caps-lock-indicator","caption","captiontext","caret","cell","center","checkbox","circle","cjk-decimal","cjk-earthly-branch","cjk-heavenly-stem","cjk-ideographic","clear","clip","close-quote","col-resize","collapse","column","compact","condensed","contain","content","contents","content-box","context-menu","continuous","copy","counter","counters","cover","crop","cross","crosshair","currentcolor","cursive","cyclic","dashed","decimal","decimal-leading-zero","default","default-button","destination-atop","destination-in","destination-out","destination-over","devanagari","disc","discard","disclosure-closed","disclosure-open","document","dot-dash","dot-dot-dash","dotted","double","down","e-resize","ease","ease-in","ease-in-out","ease-out","element","ellipse","ellipsis","embed","end","ethiopic","ethiopic-abegede","ethiopic-abegede-am-et","ethiopic-abegede-gez","ethiopic-abegede-ti-er","ethiopic-abegede-ti-et","ethiopic-halehame-aa-er","ethiopic-halehame-aa-et","ethiopic-halehame-am-et","ethiopic-halehame-gez","ethiopic-halehame-om-et","ethiopic-halehame-sid-et","ethiopic-halehame-so-et","ethiopic-halehame-ti-er","ethiopic-halehame-ti-et","ethiopic-halehame-tig","ethiopic-numeric","ew-resize","expanded","extends","extra-condensed","extra-expanded","fantasy","fast","fill","fixed","flat","flex","footnotes","forwards","from","geometricPrecision","georgian","graytext","groove","gujarati","gurmukhi","hand","hangul","hangul-consonant","hebrew","help","hidden","hide","higher","highlight","highlighttext","hiragana","hiragana-iroha","horizontal","hsl","hsla","icon","ignore","inactiveborder","inactivecaption","inactivecaptiontext","infinite","infobackground","infotext","inherit","initial","inline","inline-axis","inline-block","inline-flex","inline-table","inset","inside","intrinsic","invert","italic","japanese-formal","japanese-informal","justify","kannada","katakana","katakana-iroha","keep-all","khmer","korean-hangul-formal","korean-hanja-formal","korean-hanja-informal","landscape","lao","large","larger","left","level","lighter","line-through","linear","linear-gradient","lines","list-item","listbox","listitem","local","logical","loud","lower","lower-alpha","lower-armenian","lower-greek","lower-hexadecimal","lower-latin","lower-norwegian","lower-roman","lowercase","ltr","malayalam","match","matrix","matrix3d","media-controls-background","media-current-time-display","media-fullscreen-button","media-mute-button","media-play-button","media-return-to-realtime-button","media-rewind-button","media-seek-back-button","media-seek-forward-button","media-slider","media-sliderthumb","media-time-remaining-display","media-volume-slider","media-volume-slider-container","media-volume-sliderthumb","medium","menu","menulist","menulist-button","menulist-text","menulist-textfield","menutext","message-box","middle","min-intrinsic","mix","mongolian","monospace","move","multiple","myanmar","n-resize","narrower","ne-resize","nesw-resize","no-close-quote","no-drop","no-open-quote","no-repeat","none","normal","not-allowed","nowrap","ns-resize","numbers","numeric","nw-resize","nwse-resize","oblique","octal","open-quote","optimizeLegibility","optimizeSpeed","oriya","oromo","outset","outside","outside-shape","overlay","overline","padding","padding-box","painted","page","paused","persian","perspective","plus-darker","plus-lighter","pointer","polygon","portrait","pre","pre-line","pre-wrap","preserve-3d","progress","push-button","radial-gradient","radio","read-only","read-write","read-write-plaintext-only","rectangle","region","relative","repeat","repeating-linear-gradient","repeating-radial-gradient","repeat-x","repeat-y","reset","reverse","rgb","rgba","ridge","right","rotate","rotate3d","rotateX","rotateY","rotateZ","round","row-resize","rtl","run-in","running","s-resize","sans-serif","scale","scale3d","scaleX","scaleY","scaleZ","scroll","scrollbar","scroll-position","se-resize","searchfield","searchfield-cancel-button","searchfield-decoration","searchfield-results-button","searchfield-results-decoration","semi-condensed","semi-expanded","separate","serif","show","sidama","simp-chinese-formal","simp-chinese-informal","single","skew","skewX","skewY","skip-white-space","slide","slider-horizontal","slider-vertical","sliderthumb-horizontal","sliderthumb-vertical","slow","small","small-caps","small-caption","smaller","solid","somali","source-atop","source-in","source-out","source-over","space","spell-out","square","square-button","start","static","status-bar","stretch","stroke","sub","subpixel-antialiased","super","sw-resize","symbolic","symbols","table","table-caption","table-cell","table-column","table-column-group","table-footer-group","table-header-group","table-row","table-row-group","tamil","telugu","text","text-bottom","text-top","textarea","textfield","thai","thick","thin","threeddarkshadow","threedface","threedhighlight","threedlightshadow","threedshadow","tibetan","tigre","tigrinya-er","tigrinya-er-abegede","tigrinya-et","tigrinya-et-abegede","to","top","trad-chinese-formal","trad-chinese-informal","translate","translate3d","translateX","translateY","translateZ","transparent","ultra-condensed","ultra-expanded","underline","up","upper-alpha","upper-armenian","upper-greek","upper-hexadecimal","upper-latin","upper-norwegian","upper-roman","uppercase","urdu","url","var","vertical","vertical-text","visible","visibleFill","visiblePainted","visibleStroke","visual","w-resize","wait","wave","wider","window","windowframe","windowtext","words","x-large","x-small","xor","xx-large","xx-small","bicubic","optimizespeed","grayscale","row","row-reverse","wrap","wrap-reverse","column-reverse","flex-start","flex-end","space-between","space-around", "unset"];
+
+  var wordOperatorKeywords_ = ["in","and","or","not","is not","is a","is","isnt","defined","if unless"],
+      blockKeywords_ = ["for","if","else","unless", "from", "to"],
+      commonAtoms_ = ["null","true","false","href","title","type","not-allowed","readonly","disabled"],
+      commonDef_ = ["@font-face", "@keyframes", "@media", "@viewport", "@page", "@host", "@supports", "@block", "@css"];
+
+  var hintWords = tagKeywords_.concat(documentTypes_,mediaTypes_,mediaFeatures_,
+                                      propertyKeywords_,nonStandardPropertyKeywords_,
+                                      colorKeywords_,valueKeywords_,fontProperties_,
+                                      wordOperatorKeywords_,blockKeywords_,
+                                      commonAtoms_,commonDef_);
+
+  function wordRegexp(words) {
+    words = words.sort(function(a,b){return b > a;});
+    return new RegExp("^((" + words.join(")|(") + "))\\b");
+  }
+
+  function keySet(array) {
+    var keys = {};
+    for (var i = 0; i < array.length; ++i) keys[array[i]] = true;
+    return keys;
+  }
+
+  function escapeRegExp(text) {
+    return text.replace(/[-[\]{}()*+?.,\\^$|#\s]/g, "\\$&");
+  }
+
+  CodeMirror.registerHelper("hintWords", "stylus", hintWords);
+  CodeMirror.defineMIME("text/x-styl", "stylus");
+});
diff --git a/public/codemirror/mode/swift/index.html b/public/codemirror/mode/swift/index.html
new file mode 100644
index 000000000..109f3fdb0
--- /dev/null
+++ b/public/codemirror/mode/swift/index.html
@@ -0,0 +1,88 @@
+
+
+CodeMirror: Swift mode
+
+
+
+
+
+
+
+
+
+
+

+
Swift mode

+

+
+    
+
+    
A simple mode for Swift

+
+    
MIME types defined: text/x-swift (Swift code)

+  

diff --git a/public/codemirror/mode/swift/swift.js b/public/codemirror/mode/swift/swift.js
new file mode 100644
index 000000000..43ab7c8fb
--- /dev/null
+++ b/public/codemirror/mode/swift/swift.js
@@ -0,0 +1,210 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// Swift mode created by Michael Kaminsky https://github.com/mkaminsky11
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object")
+    mod(require("../../lib/codemirror"))
+  else if (typeof define == "function" && define.amd)
+    define(["../../lib/codemirror"], mod)
+  else
+    mod(CodeMirror)
+})(function(CodeMirror) {
+  "use strict"
+
+  function wordSet(words) {
+    var set = {}
+    for (var i = 0; i < words.length; i++) set[words[i]] = true
+    return set
+  }
+
+  var keywords = wordSet(["_","var","let","class","enum","extension","import","protocol","struct","func","typealias","associatedtype",
+                          "open","public","internal","fileprivate","private","deinit","init","new","override","self","subscript","super",
+                          "convenience","dynamic","final","indirect","lazy","required","static","unowned","unowned(safe)","unowned(unsafe)","weak","as","is",
+                          "break","case","continue","default","else","fallthrough","for","guard","if","in","repeat","switch","where","while",
+                          "defer","return","inout","mutating","nonmutating","catch","do","rethrows","throw","throws","try","didSet","get","set","willSet",
+                          "assignment","associativity","infix","left","none","operator","postfix","precedence","precedencegroup","prefix","right",
+                          "Any","AnyObject","Type","dynamicType","Self","Protocol","__COLUMN__","__FILE__","__FUNCTION__","__LINE__"])
+  var definingKeywords = wordSet(["var","let","class","enum","extension","import","protocol","struct","func","typealias","associatedtype","for"])
+  var atoms = wordSet(["true","false","nil","self","super","_"])
+  var types = wordSet(["Array","Bool","Character","Dictionary","Double","Float","Int","Int8","Int16","Int32","Int64","Never","Optional","Set","String",
+                       "UInt8","UInt16","UInt32","UInt64","Void"])
+  var operators = "+-/*%=|&<>~^?!"
+  var punc = ":;,.(){}[]"
+  var binary = /^\-?0b[01][01_]*/
+  var octal = /^\-?0o[0-7][0-7_]*/
+  var hexadecimal = /^\-?0x[\dA-Fa-f][\dA-Fa-f_]*(?:(?:\.[\dA-Fa-f][\dA-Fa-f_]*)?[Pp]\-?\d[\d_]*)?/
+  var decimal = /^\-?\d[\d_]*(?:\.\d[\d_]*)?(?:[Ee]\-?\d[\d_]*)?/
+  var identifier = /^\$\d+|(`?)[_A-Za-z][_A-Za-z$0-9]*\1/
+  var property = /^\.(?:\$\d+|(`?)[_A-Za-z][_A-Za-z$0-9]*\1)/
+  var instruction = /^\#[A-Za-z]+/
+  var attribute = /^@(?:\$\d+|(`?)[_A-Za-z][_A-Za-z$0-9]*\1)/
+  //var regexp = /^\/(?!\s)(?:\/\/)?(?:\\.|[^\/])+\//
+
+  function tokenBase(stream, state, prev) {
+    if (stream.sol()) state.indented = stream.indentation()
+    if (stream.eatSpace()) return null
+
+    var ch = stream.peek()
+    if (ch == "/") {
+      if (stream.match("//")) {
+        stream.skipToEnd()
+        return "comment"
+      }
+      if (stream.match("/*")) {
+        state.tokenize.push(tokenComment)
+        return tokenComment(stream, state)
+      }
+    }
+    if (stream.match(instruction)) return "builtin"
+    if (stream.match(attribute)) return "attribute"
+    if (stream.match(binary)) return "number"
+    if (stream.match(octal)) return "number"
+    if (stream.match(hexadecimal)) return "number"
+    if (stream.match(decimal)) return "number"
+    if (stream.match(property)) return "property"
+    if (operators.indexOf(ch) > -1) {
+      stream.next()
+      return "operator"
+    }
+    if (punc.indexOf(ch) > -1) {
+      stream.next()
+      stream.match("..")
+      return "punctuation"
+    }
+    if (ch == '"' || ch == "'") {
+      stream.next()
+      var tokenize = tokenString(ch)
+      state.tokenize.push(tokenize)
+      return tokenize(stream, state)
+    }
+
+    if (stream.match(identifier)) {
+      var ident = stream.current()
+      if (types.hasOwnProperty(ident)) return "variable-2"
+      if (atoms.hasOwnProperty(ident)) return "atom"
+      if (keywords.hasOwnProperty(ident)) {
+        if (definingKeywords.hasOwnProperty(ident))
+          state.prev = "define"
+        return "keyword"
+      }
+      if (prev == "define") return "def"
+      return "variable"
+    }
+
+    stream.next()
+    return null
+  }
+
+  function tokenUntilClosingParen() {
+    var depth = 0
+    return function(stream, state, prev) {
+      var inner = tokenBase(stream, state, prev)
+      if (inner == "punctuation") {
+        if (stream.current() == "(") ++depth
+        else if (stream.current() == ")") {
+          if (depth == 0) {
+            stream.backUp(1)
+            state.tokenize.pop()
+            return state.tokenize[state.tokenize.length - 1](stream, state)
+          }
+          else --depth
+        }
+      }
+      return inner
+    }
+  }
+
+  function tokenString(quote) {
+    return function(stream, state) {
+      var ch, escaped = false
+      while (ch = stream.next()) {
+        if (escaped) {
+          if (ch == "(") {
+            state.tokenize.push(tokenUntilClosingParen())
+            return "string"
+          }
+          escaped = false
+        } else if (ch == quote) {
+          break
+        } else {
+          escaped = ch == "\\"
+        }
+      }
+      state.tokenize.pop()
+      return "string"
+    }
+  }
+
+  function tokenComment(stream, state) {
+    stream.match(/^(?:[^*]|\*(?!\/))*/)
+    if (stream.match("*/")) state.tokenize.pop()
+    return "comment"
+  }
+
+  function Context(prev, align, indented) {
+    this.prev = prev
+    this.align = align
+    this.indented = indented
+  }
+
+  function pushContext(state, stream) {
+    var align = stream.match(/^\s*($|\/[\/\*])/, false) ? null : stream.column() + 1
+    state.context = new Context(state.context, align, state.indented)
+  }
+
+  function popContext(state) {
+    if (state.context) {
+      state.indented = state.context.indented
+      state.context = state.context.prev
+    }
+  }
+
+  CodeMirror.defineMode("swift", function(config) {
+    return {
+      startState: function() {
+        return {
+          prev: null,
+          context: null,
+          indented: 0,
+          tokenize: []
+        }
+      },
+
+      token: function(stream, state) {
+        var prev = state.prev
+        state.prev = null
+        var tokenize = state.tokenize[state.tokenize.length - 1] || tokenBase
+        var style = tokenize(stream, state, prev)
+        if (!style || style == "comment") state.prev = prev
+        else if (!state.prev) state.prev = style
+
+        if (style == "punctuation") {
+          var bracket = /[\(\[\{]|([\]\)\}])/.exec(stream.current())
+          if (bracket) (bracket[1] ? popContext : pushContext)(state, stream)
+        }
+
+        return style
+      },
+
+      indent: function(state, textAfter) {
+        var cx = state.context
+        if (!cx) return 0
+        var closing = /^[\]\}\)]/.test(textAfter)
+        if (cx.align != null) return cx.align - (closing ? 1 : 0)
+        return cx.indented + (closing ? 0 : config.indentUnit)
+      },
+
+      electricInput: /^\s*[\)\}\]]$/,
+
+      lineComment: "//",
+      blockCommentStart: "/*",
+      blockCommentEnd: "*/",
+      fold: "brace",
+      closeBrackets: "()[]{}''\"\"``"
+    }
+  })
+
+  CodeMirror.defineMIME("text/x-swift","swift")
+});
diff --git a/public/codemirror/mode/swift/test.js b/public/codemirror/mode/swift/test.js
new file mode 100644
index 000000000..786b89e29
--- /dev/null
+++ b/public/codemirror/mode/swift/test.js
@@ -0,0 +1,149 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({indentUnit: 2}, "swift");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)); }
+
+  // Ensure all number types are properly represented.
+  MT("numbers",
+     "[keyword var] [def a] [operator =] [number 17]",
+     "[keyword var] [def b] [operator =] [number -0.5]",
+     "[keyword var] [def c] [operator =] [number 0.3456e-4]",
+     "[keyword var] [def d] [operator =] [number 345e2]",
+     "[keyword var] [def e] [operator =] [number 0o7324]",
+     "[keyword var] [def f] [operator =] [number 0b10010]",
+     "[keyword var] [def g] [operator =] [number -0x35ade]",
+     "[keyword var] [def h] [operator =] [number 0xaea.ep-13]",
+     "[keyword var] [def i] [operator =] [number 0x13ep6]");
+
+  // Variable/class/etc definition.
+  MT("definition",
+     "[keyword var] [def a] [operator =] [number 5]",
+     "[keyword let] [def b][punctuation :] [variable-2 Int] [operator =] [number 10]",
+     "[keyword class] [def C] [punctuation {] [punctuation }]",
+     "[keyword struct] [def D] [punctuation {] [punctuation }]",
+     "[keyword enum] [def E] [punctuation {] [punctuation }]",
+     "[keyword extension] [def F] [punctuation {] [punctuation }]",
+     "[keyword protocol] [def G] [punctuation {] [punctuation }]",
+     "[keyword func] [def h][punctuation ()] [punctuation {] [punctuation }]",
+     "[keyword import] [def Foundation]",
+     "[keyword typealias] [def NewString] [operator =] [variable-2 String]",
+     "[keyword associatedtype] [def I]",
+     "[keyword for] [def j] [keyword in] [number 0][punctuation ..][operator <][number 3] [punctuation {] [punctuation }]");
+
+  // Strings and string interpolation.
+  MT("strings",
+     "[keyword var] [def a][punctuation :] [variable-2 String] [operator =] [string \"test\"]",
+     "[keyword var] [def b][punctuation :] [variable-2 String] [operator =] [string \"\\(][variable a][string )\"]");
+
+  // Comments.
+  MT("comments",
+     "[comment // This is a comment]",
+     "[comment /* This is another comment */]",
+     "[keyword var] [def a] [operator =] [number 5] [comment // Third comment]");
+
+  // Atoms.
+  MT("atoms",
+     "[keyword class] [def FooClass] [punctuation {]",
+     "  [keyword let] [def fooBool][punctuation :] [variable-2 Bool][operator ?]",
+     "  [keyword let] [def fooInt][punctuation :] [variable-2 Int][operator ?]",
+     "  [keyword func] [keyword init][punctuation (][variable fooBool][punctuation :] [variable-2 Bool][punctuation ,] [variable barBool][punctuation :] [variable-2 Bool][punctuation )] [punctuation {]",
+     "    [atom super][property .init][punctuation ()]",
+     "    [atom self][property .fooBool] [operator =] [variable fooBool]",
+     "    [variable fooInt] [operator =] [atom nil]",
+     "    [keyword if] [variable barBool] [operator ==] [atom true] [punctuation {]",
+     "      [variable print][punctuation (][string \"True!\"][punctuation )]",
+     "    [punctuation }] [keyword else] [keyword if] [variable barBool] [operator ==] [atom false] [punctuation {]",
+     "      [keyword for] [atom _] [keyword in] [number 0][punctuation ...][number 5] [punctuation {]",
+     "        [variable print][punctuation (][string \"False!\"][punctuation )]",
+     "      [punctuation }]",
+     "    [punctuation }]",
+     "  [punctuation }]",
+     "[punctuation }]");
+
+  // Types.
+  MT("types",
+     "[keyword var] [def a] [operator =] [variable-2 Array][operator <][variable-2 Int][operator >]",
+     "[keyword var] [def b] [operator =] [variable-2 Set][operator <][variable-2 Bool][operator >]",
+     "[keyword var] [def c] [operator =] [variable-2 Dictionary][operator <][variable-2 String][punctuation ,][variable-2 Character][operator >]",
+     "[keyword var] [def d][punctuation :] [variable-2 Int64][operator ?] [operator =] [variable-2 Optional][punctuation (][number 8][punctuation )]",
+     "[keyword func] [def e][punctuation ()] [operator ->] [variable-2 Void] [punctuation {]",
+     "  [keyword var] [def e1][punctuation :] [variable-2 Float] [operator =] [number 1.2]",
+     "[punctuation }]",
+     "[keyword func] [def f][punctuation ()] [operator ->] [variable-2 Never] [punctuation {]",
+     "  [keyword var] [def f1][punctuation :] [variable-2 Double] [operator =] [number 2.4]",
+     "[punctuation }]");
+
+  // Operators.
+  MT("operators",
+     "[keyword var] [def a] [operator =] [number 1] [operator +] [number 2]",
+     "[keyword var] [def b] [operator =] [number 1] [operator -] [number 2]",
+     "[keyword var] [def c] [operator =] [number 1] [operator *] [number 2]",
+     "[keyword var] [def d] [operator =] [number 1] [operator /] [number 2]",
+     "[keyword var] [def e] [operator =] [number 1] [operator %] [number 2]",
+     "[keyword var] [def f] [operator =] [number 1] [operator |] [number 2]",
+     "[keyword var] [def g] [operator =] [number 1] [operator &] [number 2]",
+     "[keyword var] [def h] [operator =] [number 1] [operator <<] [number 2]",
+     "[keyword var] [def i] [operator =] [number 1] [operator >>] [number 2]",
+     "[keyword var] [def j] [operator =] [number 1] [operator ^] [number 2]",
+     "[keyword var] [def k] [operator =] [operator ~][number 1]",
+     "[keyword var] [def l] [operator =] [variable foo] [operator ?] [number 1] [punctuation :] [number 2]",
+     "[keyword var] [def m][punctuation :] [variable-2 Int] [operator =] [variable-2 Optional][punctuation (][number 8][punctuation )][operator !]");
+
+  // Punctuation.
+  MT("punctuation",
+     "[keyword let] [def a] [operator =] [number 1][punctuation ;] [keyword let] [def b] [operator =] [number 2]",
+     "[keyword let] [def testArr][punctuation :] [punctuation [[][variable-2 Int][punctuation ]]] [operator =] [punctuation [[][variable a][punctuation ,] [variable b][punctuation ]]]",
+     "[keyword for] [def i] [keyword in] [number 0][punctuation ..][operator <][variable testArr][property .count] [punctuation {]",
+     "  [variable print][punctuation (][variable testArr][punctuation [[][variable i][punctuation ]])]",
+     "[punctuation }]");
+
+  // Identifiers.
+  MT("identifiers",
+     "[keyword let] [def abc] [operator =] [number 1]",
+     "[keyword let] [def ABC] [operator =] [number 2]",
+     "[keyword let] [def _123] [operator =] [number 3]",
+     "[keyword let] [def _$1$2$3] [operator =] [number 4]",
+     "[keyword let] [def A1$_c32_$_] [operator =] [number 5]",
+     "[keyword let] [def `var`] [operator =] [punctuation [[][number 1][punctuation ,] [number 2][punctuation ,] [number 3][punctuation ]]]",
+     "[keyword let] [def square$] [operator =] [variable `var`][property .map] [punctuation {][variable $0] [operator *] [variable $0][punctuation }]",
+     "$$ [number 1][variable a] $[atom _] [variable _$] [variable __] `[variable a] [variable b]`");
+
+  // Properties.
+  MT("properties",
+     "[variable print][punctuation (][variable foo][property .abc][punctuation )]",
+     "[variable print][punctuation (][variable foo][property .ABC][punctuation )]",
+     "[variable print][punctuation (][variable foo][property ._123][punctuation )]",
+     "[variable print][punctuation (][variable foo][property ._$1$2$3][punctuation )]",
+     "[variable print][punctuation (][variable foo][property .A1$_c32_$_][punctuation )]",
+     "[variable print][punctuation (][variable foo][property .`var`][punctuation )]",
+     "[variable print][punctuation (][variable foo][property .__][punctuation )]");
+
+  // Instructions or other things that start with #.
+  MT("instructions",
+     "[keyword if] [builtin #available][punctuation (][variable iOS] [number 9][punctuation ,] [operator *][punctuation )] [punctuation {}]",
+     "[variable print][punctuation (][builtin #file][punctuation ,] [builtin #function][punctuation )]",
+     "[variable print][punctuation (][builtin #line][punctuation ,] [builtin #column][punctuation )]",
+     "[builtin #if] [atom true]",
+     "[keyword import] [def A]",
+     "[builtin #elseif] [atom false]",
+     "[keyword import] [def B]",
+     "[builtin #endif]",
+     "[builtin #sourceLocation][punctuation (][variable file][punctuation :] [string \"file.swift\"][punctuation ,] [variable line][punctuation :] [number 2][punctuation )]");
+
+  // Attributes; things that start with @.
+  MT("attributes",
+     "[attribute @objc][punctuation (][variable objcFoo][punctuation :)]",
+     "[attribute @available][punctuation (][variable iOS][punctuation )]");
+
+  // Property/number edge case.
+  MT("property_number",
+     "[variable print][punctuation (][variable foo][property ._123][punctuation )]",
+     "[variable print][punctuation (]")
+
+  // TODO: correctly identify when multiple variables are being declared
+  // by use of a comma-separated list.
+  // TODO: correctly identify when variables are being declared in a tuple.
+  // TODO: identify protocols as types when used before an extension?
+})();
diff --git a/public/codemirror/mode/tcl/index.html b/public/codemirror/mode/tcl/index.html
new file mode 100644
index 000000000..ce4ad3423
--- /dev/null
+++ b/public/codemirror/mode/tcl/index.html
@@ -0,0 +1,142 @@
+
+
+CodeMirror: Tcl mode
+
+
+
+
+
+
+
+
+
+
+

+
Tcl mode

+

+    
+
+    
MIME types defined: text/x-tcl.

+
+  

diff --git a/public/codemirror/mode/tcl/tcl.js b/public/codemirror/mode/tcl/tcl.js
new file mode 100644
index 000000000..8c76d52ca
--- /dev/null
+++ b/public/codemirror/mode/tcl/tcl.js
@@ -0,0 +1,139 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+//tcl mode by Ford_Lawnmower :: Based on Velocity mode by Steve O'Hara
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("tcl", function() {
+  function parseWords(str) {
+    var obj = {}, words = str.split(" ");
+    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+    return obj;
+  }
+  var keywords = parseWords("Tcl safe after append array auto_execok auto_import auto_load " +
+        "auto_mkindex auto_mkindex_old auto_qualify auto_reset bgerror " +
+        "binary break catch cd close concat continue dde eof encoding error " +
+        "eval exec exit expr fblocked fconfigure fcopy file fileevent filename " +
+        "filename flush for foreach format gets glob global history http if " +
+        "incr info interp join lappend lindex linsert list llength load lrange " +
+        "lreplace lsearch lset lsort memory msgcat namespace open package parray " +
+        "pid pkg::create pkg_mkIndex proc puts pwd re_syntax read regex regexp " +
+        "registry regsub rename resource return scan seek set socket source split " +
+        "string subst switch tcl_endOfWord tcl_findLibrary tcl_startOfNextWord " +
+        "tcl_wordBreakAfter tcl_startOfPreviousWord tcl_wordBreakBefore tcltest " +
+        "tclvars tell time trace unknown unset update uplevel upvar variable " +
+    "vwait");
+    var functions = parseWords("if elseif else and not or eq ne in ni for foreach while switch");
+    var isOperatorChar = /[+\-*&%=<>!?^\/\|]/;
+    function chain(stream, state, f) {
+      state.tokenize = f;
+      return f(stream, state);
+    }
+    function tokenBase(stream, state) {
+      var beforeParams = state.beforeParams;
+      state.beforeParams = false;
+      var ch = stream.next();
+      if ((ch == '"' || ch == "'") && state.inParams) {
+        return chain(stream, state, tokenString(ch));
+      } else if (/[\[\]{}\(\),;\.]/.test(ch)) {
+        if (ch == "(" && beforeParams) state.inParams = true;
+        else if (ch == ")") state.inParams = false;
+          return null;
+      } else if (/\d/.test(ch)) {
+        stream.eatWhile(/[\w\.]/);
+        return "number";
+      } else if (ch == "#") {
+        if (stream.eat("*"))
+          return chain(stream, state, tokenComment);
+        if (ch == "#" && stream.match(/ *\[ *\[/))
+          return chain(stream, state, tokenUnparsed);
+        stream.skipToEnd();
+        return "comment";
+      } else if (ch == '"') {
+        stream.skipTo(/"/);
+        return "comment";
+      } else if (ch == "$") {
+        stream.eatWhile(/[$_a-z0-9A-Z\.{:]/);
+        stream.eatWhile(/}/);
+        state.beforeParams = true;
+        return "builtin";
+      } else if (isOperatorChar.test(ch)) {
+        stream.eatWhile(isOperatorChar);
+        return "comment";
+      } else {
+        stream.eatWhile(/[\w\$_{}\xa1-\uffff]/);
+        var word = stream.current().toLowerCase();
+        if (keywords && keywords.propertyIsEnumerable(word))
+          return "keyword";
+        if (functions && functions.propertyIsEnumerable(word)) {
+          state.beforeParams = true;
+          return "keyword";
+        }
+        return null;
+      }
+    }
+    function tokenString(quote) {
+      return function(stream, state) {
+      var escaped = false, next, end = false;
+      while ((next = stream.next()) != null) {
+        if (next == quote && !escaped) {
+          end = true;
+          break;
+        }
+        escaped = !escaped && next == "\\";
+      }
+      if (end) state.tokenize = tokenBase;
+        return "string";
+      };
+    }
+    function tokenComment(stream, state) {
+      var maybeEnd = false, ch;
+      while (ch = stream.next()) {
+        if (ch == "#" && maybeEnd) {
+          state.tokenize = tokenBase;
+          break;
+        }
+        maybeEnd = (ch == "*");
+      }
+      return "comment";
+    }
+    function tokenUnparsed(stream, state) {
+      var maybeEnd = 0, ch;
+      while (ch = stream.next()) {
+        if (ch == "#" && maybeEnd == 2) {
+          state.tokenize = tokenBase;
+          break;
+        }
+        if (ch == "]")
+          maybeEnd++;
+        else if (ch != " ")
+          maybeEnd = 0;
+      }
+      return "meta";
+    }
+    return {
+      startState: function() {
+        return {
+          tokenize: tokenBase,
+          beforeParams: false,
+          inParams: false
+        };
+      },
+      token: function(stream, state) {
+        if (stream.eatSpace()) return null;
+        return state.tokenize(stream, state);
+      }
+    };
+});
+CodeMirror.defineMIME("text/x-tcl", "tcl");
+
+});
diff --git a/public/codemirror/mode/textile/index.html b/public/codemirror/mode/textile/index.html
new file mode 100644
index 000000000..42b156b1e
--- /dev/null
+++ b/public/codemirror/mode/textile/index.html
@@ -0,0 +1,191 @@
+
+
+CodeMirror: Textile mode
+
+
+
+
+
+
+
+
+
+

+    
Textile mode

+    

+    
+
+    
MIME types defined: text/x-textile.

+
+    
Parsing/Highlighting Tests: normal,  verbose.

+
+

diff --git a/public/codemirror/mode/textile/test.js b/public/codemirror/mode/textile/test.js
new file mode 100644
index 000000000..49cdaf9c9
--- /dev/null
+++ b/public/codemirror/mode/textile/test.js
@@ -0,0 +1,417 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({tabSize: 4}, 'textile');
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)); }
+
+  MT('simpleParagraphs',
+      'Some text.',
+      '',
+      'Some more text.');
+
+  /*
+   * Phrase Modifiers
+   */
+
+  MT('em',
+      'foo [em _bar_]');
+
+  MT('emBoogus',
+      'code_mirror');
+
+  MT('strong',
+      'foo [strong *bar*]');
+
+  MT('strongBogus',
+      '3 * 3 = 9');
+
+  MT('italic',
+      'foo [em __bar__]');
+
+  MT('italicBogus',
+      'code__mirror');
+
+  MT('bold',
+      'foo [strong **bar**]');
+
+  MT('boldBogus',
+      '3 ** 3 = 27');
+
+  MT('simpleLink',
+      '[link "CodeMirror":http://codemirror.net]');
+
+  MT('referenceLink',
+      '[link "CodeMirror":code_mirror]',
+      'Normal Text.',
+      '[link [[code_mirror]]http://codemirror.net]');
+
+  MT('footCite',
+      'foo bar[qualifier [[1]]]');
+
+  MT('footCiteBogus',
+      'foo bar[[1a2]]');
+
+  MT('special-characters',
+          'Registered [tag (r)], ' +
+          'Trademark [tag (tm)], and ' +
+          'Copyright [tag (c)] 2008');
+
+  MT('cite',
+      "A book is [keyword ??The Count of Monte Cristo??] by Dumas.");
+
+  MT('additionAndDeletion',
+      'The news networks declared [negative -Al Gore-] ' +
+        '[positive +George W. Bush+] the winner in Florida.');
+
+  MT('subAndSup',
+      'f(x, n) = log [builtin ~4~] x [builtin ^n^]');
+
+  MT('spanAndCode',
+      'A [quote %span element%] and [atom @code element@]');
+
+  MT('spanBogus',
+      'Percentage 25% is not a span.');
+
+  MT('citeBogus',
+      'Question? is not a citation.');
+
+  MT('codeBogus',
+      'user@example.com');
+
+  MT('subBogus',
+      '~username');
+
+  MT('supBogus',
+      'foo ^ bar');
+
+  MT('deletionBogus',
+      '3 - 3 = 0');
+
+  MT('additionBogus',
+      '3 + 3 = 6');
+
+  MT('image',
+      'An image: [string !http://www.example.com/image.png!]');
+
+  MT('imageWithAltText',
+      'An image: [string !http://www.example.com/image.png (Alt Text)!]');
+
+  MT('imageWithUrl',
+      'An image: [string !http://www.example.com/image.png!:http://www.example.com/]');
+
+  /*
+   * Headers
+   */
+
+  MT('h1',
+      '[header&header-1 h1. foo]');
+
+  MT('h2',
+      '[header&header-2 h2. foo]');
+
+  MT('h3',
+      '[header&header-3 h3. foo]');
+
+  MT('h4',
+      '[header&header-4 h4. foo]');
+
+  MT('h5',
+      '[header&header-5 h5. foo]');
+
+  MT('h6',
+      '[header&header-6 h6. foo]');
+
+  MT('h7Bogus',
+      'h7. foo');
+
+  MT('multipleHeaders',
+      '[header&header-1 h1. Heading 1]',
+      '',
+      'Some text.',
+      '',
+      '[header&header-2 h2. Heading 2]',
+      '',
+      'More text.');
+
+  MT('h1inline',
+      '[header&header-1 h1. foo ][header&header-1&em _bar_][header&header-1  baz]');
+
+  /*
+   * Lists
+   */
+
+  MT('ul',
+      'foo',
+      'bar',
+      '',
+      '[variable-2 * foo]',
+      '[variable-2 * bar]');
+
+  MT('ulNoBlank',
+      'foo',
+      'bar',
+      '[variable-2 * foo]',
+      '[variable-2 * bar]');
+
+  MT('ol',
+      'foo',
+      'bar',
+      '',
+      '[variable-2 # foo]',
+      '[variable-2 # bar]');
+
+  MT('olNoBlank',
+      'foo',
+      'bar',
+      '[variable-2 # foo]',
+      '[variable-2 # bar]');
+
+  MT('ulFormatting',
+      '[variable-2 * ][variable-2&em _foo_][variable-2  bar]',
+      '[variable-2 * ][variable-2&strong *][variable-2&em&strong _foo_]' +
+        '[variable-2&strong *][variable-2  bar]',
+      '[variable-2 * ][variable-2&strong *foo*][variable-2  bar]');
+
+  MT('olFormatting',
+      '[variable-2 # ][variable-2&em _foo_][variable-2  bar]',
+      '[variable-2 # ][variable-2&strong *][variable-2&em&strong _foo_]' +
+        '[variable-2&strong *][variable-2  bar]',
+      '[variable-2 # ][variable-2&strong *foo*][variable-2  bar]');
+
+  MT('ulNested',
+      '[variable-2 * foo]',
+      '[variable-3 ** bar]',
+      '[keyword *** bar]',
+      '[variable-2 **** bar]',
+      '[variable-3 ** bar]');
+
+  MT('olNested',
+      '[variable-2 # foo]',
+      '[variable-3 ## bar]',
+      '[keyword ### bar]',
+      '[variable-2 #### bar]',
+      '[variable-3 ## bar]');
+
+  MT('ulNestedWithOl',
+      '[variable-2 * foo]',
+      '[variable-3 ## bar]',
+      '[keyword *** bar]',
+      '[variable-2 #### bar]',
+      '[variable-3 ** bar]');
+
+  MT('olNestedWithUl',
+      '[variable-2 # foo]',
+      '[variable-3 ** bar]',
+      '[keyword ### bar]',
+      '[variable-2 **** bar]',
+      '[variable-3 ## bar]');
+
+  MT('definitionList',
+      '[number - coffee := Hot ][number&em _and_][number  black]',
+      '',
+      'Normal text.');
+
+  MT('definitionListSpan',
+      '[number - coffee :=]',
+      '',
+      '[number Hot ][number&em _and_][number  black =:]',
+      '',
+      'Normal text.');
+
+  MT('boo',
+      '[number - dog := woof woof]',
+      '[number - cat := meow meow]',
+      '[number - whale :=]',
+      '[number Whale noises.]',
+      '',
+      '[number Also, ][number&em _splashing_][number . =:]');
+
+  /*
+   * Attributes
+   */
+
+  MT('divWithAttribute',
+      '[punctuation div][punctuation&attribute (#my-id)][punctuation . foo bar]');
+
+  MT('divWithAttributeAnd2emRightPadding',
+      '[punctuation div][punctuation&attribute (#my-id)((][punctuation . foo bar]');
+
+  MT('divWithClassAndId',
+      '[punctuation div][punctuation&attribute (my-class#my-id)][punctuation . foo bar]');
+
+  MT('paragraphWithCss',
+      'p[attribute {color:red;}]. foo bar');
+
+  MT('paragraphNestedStyles',
+      'p. [strong *foo ][strong&em _bar_][strong *]');
+
+  MT('paragraphWithLanguage',
+      'p[attribute [[fr]]]. Parlez-vous français?');
+
+  MT('paragraphLeftAlign',
+      'p[attribute <]. Left');
+
+  MT('paragraphRightAlign',
+      'p[attribute >]. Right');
+
+  MT('paragraphRightAlign',
+      'p[attribute =]. Center');
+
+  MT('paragraphJustified',
+      'p[attribute <>]. Justified');
+
+  MT('paragraphWithLeftIndent1em',
+      'p[attribute (]. Left');
+
+  MT('paragraphWithRightIndent1em',
+      'p[attribute )]. Right');
+
+  MT('paragraphWithLeftIndent2em',
+      'p[attribute ((]. Left');
+
+  MT('paragraphWithRightIndent2em',
+      'p[attribute ))]. Right');
+
+  MT('paragraphWithLeftIndent3emRightIndent2em',
+      'p[attribute ((())]. Right');
+
+  MT('divFormatting',
+      '[punctuation div. ][punctuation&strong *foo ]' +
+        '[punctuation&strong&em _bar_][punctuation&strong *]');
+
+  MT('phraseModifierAttributes',
+      'p[attribute (my-class)]. This is a paragraph that has a class and' +
+      ' this [em _][em&attribute (#special-phrase)][em emphasized phrase_]' +
+      ' has an id.');
+
+  MT('linkWithClass',
+      '[link "(my-class). This is a link with class":http://redcloth.org]');
+
+  /*
+   * Layouts
+   */
+
+  MT('paragraphLayouts',
+      'p. This is one paragraph.',
+      '',
+      'p. This is another.');
+
+  MT('div',
+      '[punctuation div. foo bar]');
+
+  MT('pre',
+      '[operator pre. Text]');
+
+  MT('bq.',
+      '[bracket bq. foo bar]',
+      '',
+      'Normal text.');
+
+  MT('footnote',
+      '[variable fn123. foo ][variable&strong *bar*]');
+
+  /*
+   * Spanning Layouts
+   */
+
+  MT('bq..ThenParagraph',
+      '[bracket bq.. foo bar]',
+      '',
+      '[bracket More quote.]',
+      'p. Normal Text');
+
+  MT('bq..ThenH1',
+      '[bracket bq.. foo bar]',
+      '',
+      '[bracket More quote.]',
+      '[header&header-1 h1. Header Text]');
+
+  MT('bc..ThenParagraph',
+      '[atom bc.. # Some ruby code]',
+      '[atom obj = {foo: :bar}]',
+      '[atom puts obj]',
+      '',
+      '[atom obj[[:love]] = "*love*"]',
+      '[atom puts obj.love.upcase]',
+      '',
+      'p. Normal text.');
+
+  MT('fn1..ThenParagraph',
+      '[variable fn1.. foo bar]',
+      '',
+      '[variable More.]',
+      'p. Normal Text');
+
+  MT('pre..ThenParagraph',
+      '[operator pre.. foo bar]',
+      '',
+      '[operator More.]',
+      'p. Normal Text');
+
+  /*
+   * Tables
+   */
+
+  MT('table',
+      '[variable-3&operator |_. name |_. age|]',
+      '[variable-3 |][variable-3&strong *Walter*][variable-3 |   5  |]',
+      '[variable-3 |Florence|   6  |]',
+      '',
+      'p. Normal text.');
+
+  MT('tableWithAttributes',
+      '[variable-3&operator |_. name |_. age|]',
+      '[variable-3 |][variable-3&attribute /2.][variable-3  Jim |]',
+      '[variable-3 |][variable-3&attribute \\2{color: red}.][variable-3  Sam |]');
+
+  /*
+   * HTML
+   */
+
+  MT('html',
+      '[comment 
]',
+      '[comment 
]',
+      '',
+      '[header&header-1 h1. Welcome]',
+      '',
+      '[variable-2 * Item one]',
+      '[variable-2 * Item two]',
+      '',
+      '[comment Example]',
+      '',
+      '[comment 
]',
+      '[comment 
]');
+
+  MT('inlineHtml',
+      'I can use HTML directly in my [comment Textile].');
+
+  /*
+   * No-Textile
+   */
+
+  MT('notextile',
+    '[string-2 notextile. *No* formatting]');
+
+  MT('notextileInline',
+      'Use [string-2 ==*asterisks*==] for [strong *strong*] text.');
+
+  MT('notextileWithPre',
+      '[operator pre. *No* formatting]');
+
+  MT('notextileWithSpanningPre',
+      '[operator pre.. *No* formatting]',
+      '',
+      '[operator *No* formatting]');
+
+  /* Only toggling phrases between non-word chars. */
+
+  MT('phrase-in-word',
+     'foo_bar_baz');
+
+  MT('phrase-non-word',
+     '[negative -x-] aaa-bbb ccc-ddd [negative -eee-] fff [negative -ggg-]');
+
+  MT('phrase-lone-dash',
+     'foo - bar - baz');
+})();
diff --git a/public/codemirror/mode/textile/textile.js b/public/codemirror/mode/textile/textile.js
new file mode 100644
index 000000000..a6f757658
--- /dev/null
+++ b/public/codemirror/mode/textile/textile.js
@@ -0,0 +1,469 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") { // CommonJS
+    mod(require("../../lib/codemirror"));
+  } else if (typeof define == "function" && define.amd) { // AMD
+    define(["../../lib/codemirror"], mod);
+  } else { // Plain browser env
+    mod(CodeMirror);
+  }
+})(function(CodeMirror) {
+  "use strict";
+
+  var TOKEN_STYLES = {
+    addition: "positive",
+    attributes: "attribute",
+    bold: "strong",
+    cite: "keyword",
+    code: "atom",
+    definitionList: "number",
+    deletion: "negative",
+    div: "punctuation",
+    em: "em",
+    footnote: "variable",
+    footCite: "qualifier",
+    header: "header",
+    html: "comment",
+    image: "string",
+    italic: "em",
+    link: "link",
+    linkDefinition: "link",
+    list1: "variable-2",
+    list2: "variable-3",
+    list3: "keyword",
+    notextile: "string-2",
+    pre: "operator",
+    p: "property",
+    quote: "bracket",
+    span: "quote",
+    specialChar: "tag",
+    strong: "strong",
+    sub: "builtin",
+    sup: "builtin",
+    table: "variable-3",
+    tableHeading: "operator"
+  };
+
+  function startNewLine(stream, state) {
+    state.mode = Modes.newLayout;
+    state.tableHeading = false;
+
+    if (state.layoutType === "definitionList" && state.spanningLayout &&
+        stream.match(RE("definitionListEnd"), false))
+      state.spanningLayout = false;
+  }
+
+  function handlePhraseModifier(stream, state, ch) {
+    if (ch === "_") {
+      if (stream.eat("_"))
+        return togglePhraseModifier(stream, state, "italic", /__/, 2);
+      else
+        return togglePhraseModifier(stream, state, "em", /_/, 1);
+    }
+
+    if (ch === "*") {
+      if (stream.eat("*")) {
+        return togglePhraseModifier(stream, state, "bold", /\*\*/, 2);
+      }
+      return togglePhraseModifier(stream, state, "strong", /\*/, 1);
+    }
+
+    if (ch === "[") {
+      if (stream.match(/\d+\]/)) state.footCite = true;
+      return tokenStyles(state);
+    }
+
+    if (ch === "(") {
+      var spec = stream.match(/^(r|tm|c)\)/);
+      if (spec)
+        return tokenStylesWith(state, TOKEN_STYLES.specialChar);
+    }
+
+    if (ch === "<" && stream.match(/(\w+)[^>]+>[^<]+<\/\1>/))
+      return tokenStylesWith(state, TOKEN_STYLES.html);
+
+    if (ch === "?" && stream.eat("?"))
+      return togglePhraseModifier(stream, state, "cite", /\?\?/, 2);
+
+    if (ch === "=" && stream.eat("="))
+      return togglePhraseModifier(stream, state, "notextile", /==/, 2);
+
+    if (ch === "-" && !stream.eat("-"))
+      return togglePhraseModifier(stream, state, "deletion", /-/, 1);
+
+    if (ch === "+")
+      return togglePhraseModifier(stream, state, "addition", /\+/, 1);
+
+    if (ch === "~")
+      return togglePhraseModifier(stream, state, "sub", /~/, 1);
+
+    if (ch === "^")
+      return togglePhraseModifier(stream, state, "sup", /\^/, 1);
+
+    if (ch === "%")
+      return togglePhraseModifier(stream, state, "span", /%/, 1);
+
+    if (ch === "@")
+      return togglePhraseModifier(stream, state, "code", /@/, 1);
+
+    if (ch === "!") {
+      var type = togglePhraseModifier(stream, state, "image", /(?:\([^\)]+\))?!/, 1);
+      stream.match(/^:\S+/); // optional Url portion
+      return type;
+    }
+    return tokenStyles(state);
+  }
+
+  function togglePhraseModifier(stream, state, phraseModifier, closeRE, openSize) {
+    var charBefore = stream.pos > openSize ? stream.string.charAt(stream.pos - openSize - 1) : null;
+    var charAfter = stream.peek();
+    if (state[phraseModifier]) {
+      if ((!charAfter || /\W/.test(charAfter)) && charBefore && /\S/.test(charBefore)) {
+        var type = tokenStyles(state);
+        state[phraseModifier] = false;
+        return type;
+      }
+    } else if ((!charBefore || /\W/.test(charBefore)) && charAfter && /\S/.test(charAfter) &&
+               stream.match(new RegExp("^.*\\S" + closeRE.source + "(?:\\W|$)"), false)) {
+      state[phraseModifier] = true;
+      state.mode = Modes.attributes;
+    }
+    return tokenStyles(state);
+  };
+
+  function tokenStyles(state) {
+    var disabled = textileDisabled(state);
+    if (disabled) return disabled;
+
+    var styles = [];
+    if (state.layoutType) styles.push(TOKEN_STYLES[state.layoutType]);
+
+    styles = styles.concat(activeStyles(
+      state, "addition", "bold", "cite", "code", "deletion", "em", "footCite",
+      "image", "italic", "link", "span", "strong", "sub", "sup", "table", "tableHeading"));
+
+    if (state.layoutType === "header")
+      styles.push(TOKEN_STYLES.header + "-" + state.header);
+
+    return styles.length ? styles.join(" ") : null;
+  }
+
+  function textileDisabled(state) {
+    var type = state.layoutType;
+
+    switch(type) {
+    case "notextile":
+    case "code":
+    case "pre":
+      return TOKEN_STYLES[type];
+    default:
+      if (state.notextile)
+        return TOKEN_STYLES.notextile + (type ? (" " + TOKEN_STYLES[type]) : "");
+      return null;
+    }
+  }
+
+  function tokenStylesWith(state, extraStyles) {
+    var disabled = textileDisabled(state);
+    if (disabled) return disabled;
+
+    var type = tokenStyles(state);
+    if (extraStyles)
+      return type ? (type + " " + extraStyles) : extraStyles;
+    else
+      return type;
+  }
+
+  function activeStyles(state) {
+    var styles = [];
+    for (var i = 1; i < arguments.length; ++i) {
+      if (state[arguments[i]])
+        styles.push(TOKEN_STYLES[arguments[i]]);
+    }
+    return styles;
+  }
+
+  function blankLine(state) {
+    var spanningLayout = state.spanningLayout, type = state.layoutType;
+
+    for (var key in state) if (state.hasOwnProperty(key))
+      delete state[key];
+
+    state.mode = Modes.newLayout;
+    if (spanningLayout) {
+      state.layoutType = type;
+      state.spanningLayout = true;
+    }
+  }
+
+  var REs = {
+    cache: {},
+    single: {
+      bc: "bc",
+      bq: "bq",
+      definitionList: /- [^(?::=)]+:=+/,
+      definitionListEnd: /.*=:\s*$/,
+      div: "div",
+      drawTable: /\|.*\|/,
+      foot: /fn\d+/,
+      header: /h[1-6]/,
+      html: /\s*<(?:\/)?(\w+)(?:[^>]+)?>(?:[^<]+<\/\1>)?/,
+      link: /[^"]+":\S/,
+      linkDefinition: /\[[^\s\]]+\]\S+/,
+      list: /(?:#+|\*+)/,
+      notextile: "notextile",
+      para: "p",
+      pre: "pre",
+      table: "table",
+      tableCellAttributes: /[\/\\]\d+/,
+      tableHeading: /\|_\./,
+      tableText: /[^"_\*\[\(\?\+~\^%@|-]+/,
+      text: /[^!"_=\*\[\(<\?\+~\^%@-]+/
+    },
+    attributes: {
+      align: /(?:<>|<|>|=)/,
+      selector: /\([^\(][^\)]+\)/,
+      lang: /\[[^\[\]]+\]/,
+      pad: /(?:\(+|\)+){1,2}/,
+      css: /\{[^\}]+\}/
+    },
+    createRe: function(name) {
+      switch (name) {
+      case "drawTable":
+        return REs.makeRe("^", REs.single.drawTable, "$");
+      case "html":
+        return REs.makeRe("^", REs.single.html, "(?:", REs.single.html, ")*", "$");
+      case "linkDefinition":
+        return REs.makeRe("^", REs.single.linkDefinition, "$");
+      case "listLayout":
+        return REs.makeRe("^", REs.single.list, RE("allAttributes"), "*\\s+");
+      case "tableCellAttributes":
+        return REs.makeRe("^", REs.choiceRe(REs.single.tableCellAttributes,
+                                            RE("allAttributes")), "+\\.");
+      case "type":
+        return REs.makeRe("^", RE("allTypes"));
+      case "typeLayout":
+        return REs.makeRe("^", RE("allTypes"), RE("allAttributes"),
+                          "*\\.\\.?", "(\\s+|$)");
+      case "attributes":
+        return REs.makeRe("^", RE("allAttributes"), "+");
+
+      case "allTypes":
+        return REs.choiceRe(REs.single.div, REs.single.foot,
+                            REs.single.header, REs.single.bc, REs.single.bq,
+                            REs.single.notextile, REs.single.pre, REs.single.table,
+                            REs.single.para);
+
+      case "allAttributes":
+        return REs.choiceRe(REs.attributes.selector, REs.attributes.css,
+                            REs.attributes.lang, REs.attributes.align, REs.attributes.pad);
+
+      default:
+        return REs.makeRe("^", REs.single[name]);
+      }
+    },
+    makeRe: function() {
+      var pattern = "";
+      for (var i = 0; i < arguments.length; ++i) {
+        var arg = arguments[i];
+        pattern += (typeof arg === "string") ? arg : arg.source;
+      }
+      return new RegExp(pattern);
+    },
+    choiceRe: function() {
+      var parts = [arguments[0]];
+      for (var i = 1; i < arguments.length; ++i) {
+        parts[i * 2 - 1] = "|";
+        parts[i * 2] = arguments[i];
+      }
+
+      parts.unshift("(?:");
+      parts.push(")");
+      return REs.makeRe.apply(null, parts);
+    }
+  };
+
+  function RE(name) {
+    return (REs.cache[name] || (REs.cache[name] = REs.createRe(name)));
+  }
+
+  var Modes = {
+    newLayout: function(stream, state) {
+      if (stream.match(RE("typeLayout"), false)) {
+        state.spanningLayout = false;
+        return (state.mode = Modes.blockType)(stream, state);
+      }
+      var newMode;
+      if (!textileDisabled(state)) {
+        if (stream.match(RE("listLayout"), false))
+          newMode = Modes.list;
+        else if (stream.match(RE("drawTable"), false))
+          newMode = Modes.table;
+        else if (stream.match(RE("linkDefinition"), false))
+          newMode = Modes.linkDefinition;
+        else if (stream.match(RE("definitionList")))
+          newMode = Modes.definitionList;
+        else if (stream.match(RE("html"), false))
+          newMode = Modes.html;
+      }
+      return (state.mode = (newMode || Modes.text))(stream, state);
+    },
+
+    blockType: function(stream, state) {
+      var match, type;
+      state.layoutType = null;
+
+      if (match = stream.match(RE("type")))
+        type = match[0];
+      else
+        return (state.mode = Modes.text)(stream, state);
+
+      if (match = type.match(RE("header"))) {
+        state.layoutType = "header";
+        state.header = parseInt(match[0][1]);
+      } else if (type.match(RE("bq"))) {
+        state.layoutType = "quote";
+      } else if (type.match(RE("bc"))) {
+        state.layoutType = "code";
+      } else if (type.match(RE("foot"))) {
+        state.layoutType = "footnote";
+      } else if (type.match(RE("notextile"))) {
+        state.layoutType = "notextile";
+      } else if (type.match(RE("pre"))) {
+        state.layoutType = "pre";
+      } else if (type.match(RE("div"))) {
+        state.layoutType = "div";
+      } else if (type.match(RE("table"))) {
+        state.layoutType = "table";
+      }
+
+      state.mode = Modes.attributes;
+      return tokenStyles(state);
+    },
+
+    text: function(stream, state) {
+      if (stream.match(RE("text"))) return tokenStyles(state);
+
+      var ch = stream.next();
+      if (ch === '"')
+        return (state.mode = Modes.link)(stream, state);
+      return handlePhraseModifier(stream, state, ch);
+    },
+
+    attributes: function(stream, state) {
+      state.mode = Modes.layoutLength;
+
+      if (stream.match(RE("attributes")))
+        return tokenStylesWith(state, TOKEN_STYLES.attributes);
+      else
+        return tokenStyles(state);
+    },
+
+    layoutLength: function(stream, state) {
+      if (stream.eat(".") && stream.eat("."))
+        state.spanningLayout = true;
+
+      state.mode = Modes.text;
+      return tokenStyles(state);
+    },
+
+    list: function(stream, state) {
+      var match = stream.match(RE("list"));
+      state.listDepth = match[0].length;
+      var listMod = (state.listDepth - 1) % 3;
+      if (!listMod)
+        state.layoutType = "list1";
+      else if (listMod === 1)
+        state.layoutType = "list2";
+      else
+        state.layoutType = "list3";
+
+      state.mode = Modes.attributes;
+      return tokenStyles(state);
+    },
+
+    link: function(stream, state) {
+      state.mode = Modes.text;
+      if (stream.match(RE("link"))) {
+        stream.match(/\S+/);
+        return tokenStylesWith(state, TOKEN_STYLES.link);
+      }
+      return tokenStyles(state);
+    },
+
+    linkDefinition: function(stream, state) {
+      stream.skipToEnd();
+      return tokenStylesWith(state, TOKEN_STYLES.linkDefinition);
+    },
+
+    definitionList: function(stream, state) {
+      stream.match(RE("definitionList"));
+
+      state.layoutType = "definitionList";
+
+      if (stream.match(/\s*$/))
+        state.spanningLayout = true;
+      else
+        state.mode = Modes.attributes;
+
+      return tokenStyles(state);
+    },
+
+    html: function(stream, state) {
+      stream.skipToEnd();
+      return tokenStylesWith(state, TOKEN_STYLES.html);
+    },
+
+    table: function(stream, state) {
+      state.layoutType = "table";
+      return (state.mode = Modes.tableCell)(stream, state);
+    },
+
+    tableCell: function(stream, state) {
+      if (stream.match(RE("tableHeading")))
+        state.tableHeading = true;
+      else
+        stream.eat("|");
+
+      state.mode = Modes.tableCellAttributes;
+      return tokenStyles(state);
+    },
+
+    tableCellAttributes: function(stream, state) {
+      state.mode = Modes.tableText;
+
+      if (stream.match(RE("tableCellAttributes")))
+        return tokenStylesWith(state, TOKEN_STYLES.attributes);
+      else
+        return tokenStyles(state);
+    },
+
+    tableText: function(stream, state) {
+      if (stream.match(RE("tableText")))
+        return tokenStyles(state);
+
+      if (stream.peek() === "|") { // end of cell
+        state.mode = Modes.tableCell;
+        return tokenStyles(state);
+      }
+      return handlePhraseModifier(stream, state, stream.next());
+    }
+  };
+
+  CodeMirror.defineMode("textile", function() {
+    return {
+      startState: function() {
+        return { mode: Modes.newLayout };
+      },
+      token: function(stream, state) {
+        if (stream.sol()) startNewLine(stream, state);
+        return state.mode(stream, state);
+      },
+      blankLine: blankLine
+    };
+  });
+
+  CodeMirror.defineMIME("text/x-textile", "textile");
+});
diff --git a/public/codemirror/mode/tiddlywiki/index.html b/public/codemirror/mode/tiddlywiki/index.html
new file mode 100644
index 000000000..77dd0457c
--- /dev/null
+++ b/public/codemirror/mode/tiddlywiki/index.html
@@ -0,0 +1,154 @@
+
+
+CodeMirror: TiddlyWiki mode
+
+
+
+
+
+
+
+
+
+
+
+

+
TiddlyWiki mode

+
+
+

+
+    
+
+    
TiddlyWiki mode supports a single configuration.

+
+    
MIME types defined: text/x-tiddlywiki.

+  

diff --git a/public/codemirror/mode/tiddlywiki/tiddlywiki.css b/public/codemirror/mode/tiddlywiki/tiddlywiki.css
new file mode 100644
index 000000000..9a69b639f
--- /dev/null
+++ b/public/codemirror/mode/tiddlywiki/tiddlywiki.css
@@ -0,0 +1,14 @@
+span.cm-underlined {
+  text-decoration: underline;
+}
+span.cm-strikethrough {
+  text-decoration: line-through;
+}
+span.cm-brace {
+  color: #170;
+  font-weight: bold;
+}
+span.cm-table {
+  color: blue;
+  font-weight: bold;
+}
diff --git a/public/codemirror/mode/tiddlywiki/tiddlywiki.js b/public/codemirror/mode/tiddlywiki/tiddlywiki.js
new file mode 100644
index 000000000..1a3b3bc68
--- /dev/null
+++ b/public/codemirror/mode/tiddlywiki/tiddlywiki.js
@@ -0,0 +1,308 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+/***
+    |''Name''|tiddlywiki.js|
+    |''Description''|Enables TiddlyWikiy syntax highlighting using CodeMirror|
+    |''Author''|PMario|
+    |''Version''|0.1.7|
+    |''Status''|''stable''|
+    |''Source''|[[GitHub|https://github.com/pmario/CodeMirror2/blob/tw-syntax/mode/tiddlywiki]]|
+    |''Documentation''|http://codemirror.tiddlyspace.com/|
+    |''License''|[[MIT License|http://www.opensource.org/licenses/mit-license.php]]|
+    |''CoreVersion''|2.5.0|
+    |''Requires''|codemirror.js|
+    |''Keywords''|syntax highlighting color code mirror codemirror|
+    ! Info
+    CoreVersion parameter is needed for TiddlyWiki only!
+***/
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("tiddlywiki", function () {
+  // Tokenizer
+  var textwords = {};
+
+  var keywords = {
+    "allTags": true, "closeAll": true, "list": true,
+    "newJournal": true, "newTiddler": true,
+    "permaview": true, "saveChanges": true,
+    "search": true, "slider": true, "tabs": true,
+    "tag": true, "tagging": true, "tags": true,
+    "tiddler": true, "timeline": true,
+    "today": true, "version": true, "option": true,
+    "with": true, "filter": true
+  };
+
+  var isSpaceName = /[\w_\-]/i,
+      reHR = /^\-\-\-\-+$/,                                 // 

+      reWikiCommentStart = /^\/\*\*\*$/,            // /***
+      reWikiCommentStop = /^\*\*\*\/$/,             // ***/
+      reBlockQuote = /^<<<$/,
+
+      reJsCodeStart = /^\/\/\{\{\{$/,                       // //{{{ js block start
+      reJsCodeStop = /^\/\/\}\}\}$/,                        // //}}} js stop
+      reXmlCodeStart = /^$/,           // xml block start
+      reXmlCodeStop = /^$/,            // xml stop
+
+      reCodeBlockStart = /^\{\{\{$/,                        // {{{ TW text div block start
+      reCodeBlockStop = /^\}\}\}$/,                 // }}} TW text stop
+
+      reUntilCodeStop = /.*?\}\}\}/;
+
+  function chain(stream, state, f) {
+    state.tokenize = f;
+    return f(stream, state);
+  }
+
+  function tokenBase(stream, state) {
+    var sol = stream.sol(), ch = stream.peek();
+
+    state.block = false;        // indicates the start of a code block.
+
+    // check start of  blocks
+    if (sol && /[<\/\*{}\-]/.test(ch)) {
+      if (stream.match(reCodeBlockStart)) {
+        state.block = true;
+        return chain(stream, state, twTokenCode);
+      }
+      if (stream.match(reBlockQuote))
+        return 'quote';
+      if (stream.match(reWikiCommentStart) || stream.match(reWikiCommentStop))
+        return 'comment';
+      if (stream.match(reJsCodeStart) || stream.match(reJsCodeStop) || stream.match(reXmlCodeStart) || stream.match(reXmlCodeStop))
+        return 'comment';
+      if (stream.match(reHR))
+        return 'hr';
+    }
+
+    stream.next();
+    if (sol && /[\/\*!#;:>|]/.test(ch)) {
+      if (ch == "!") { // tw header
+        stream.skipToEnd();
+        return "header";
+      }
+      if (ch == "*") { // tw list
+        stream.eatWhile('*');
+        return "comment";
+      }
+      if (ch == "#") { // tw numbered list
+        stream.eatWhile('#');
+        return "comment";
+      }
+      if (ch == ";") { // definition list, term
+        stream.eatWhile(';');
+        return "comment";
+      }
+      if (ch == ":") { // definition list, description
+        stream.eatWhile(':');
+        return "comment";
+      }
+      if (ch == ">") { // single line quote
+        stream.eatWhile(">");
+        return "quote";
+      }
+      if (ch == '|')
+        return 'header';
+    }
+
+    if (ch == '{' && stream.match(/\{\{/))
+      return chain(stream, state, twTokenCode);
+
+    // rudimentary html:// file:// link matching. TW knows much more ...
+    if (/[hf]/i.test(ch) &&
+        /[ti]/i.test(stream.peek()) &&
+        stream.match(/\b(ttps?|tp|ile):\/\/[\-A-Z0-9+&@#\/%?=~_|$!:,.;]*[A-Z0-9+&@#\/%=~_|$]/i))
+      return "link";
+
+    // just a little string indicator, don't want to have the whole string covered
+    if (ch == '"')
+      return 'string';
+
+    if (ch == '~')    // _no_ CamelCase indicator should be bold
+      return 'brace';
+
+    if (/[\[\]]/.test(ch) && stream.match(ch)) // check for [[..]]
+      return 'brace';
+
+    if (ch == "@") {    // check for space link. TODO fix @@...@@ highlighting
+      stream.eatWhile(isSpaceName);
+      return "link";
+    }
+
+    if (/\d/.test(ch)) {        // numbers
+      stream.eatWhile(/\d/);
+      return "number";
+    }
+
+    if (ch == "/") { // tw invisible comment
+      if (stream.eat("%")) {
+        return chain(stream, state, twTokenComment);
+      } else if (stream.eat("/")) { //
+        return chain(stream, state, twTokenEm);
+      }
+    }
+
+    if (ch == "_" && stream.eat("_")) // tw underline
+        return chain(stream, state, twTokenUnderline);
+
+    // strikethrough and mdash handling
+    if (ch == "-" && stream.eat("-")) {
+      // if strikethrough looks ugly, change CSS.
+      if (stream.peek() != ' ')
+        return chain(stream, state, twTokenStrike);
+      // mdash
+      if (stream.peek() == ' ')
+        return 'brace';
+    }
+
+    if (ch == "'" && stream.eat("'")) // tw bold
+      return chain(stream, state, twTokenStrong);
+
+    if (ch == "<" && stream.eat("<")) // tw macro
+      return chain(stream, state, twTokenMacro);
+
+    // core macro handling
+    stream.eatWhile(/[\w\$_]/);
+    return textwords.propertyIsEnumerable(stream.current()) ? "keyword" : null
+  }
+
+  // tw invisible comment
+  function twTokenComment(stream, state) {
+    var maybeEnd = false, ch;
+    while (ch = stream.next()) {
+      if (ch == "/" && maybeEnd) {
+        state.tokenize = tokenBase;
+        break;
+      }
+      maybeEnd = (ch == "%");
+    }
+    return "comment";
+  }
+
+  // tw strong / bold
+  function twTokenStrong(stream, state) {
+    var maybeEnd = false,
+    ch;
+    while (ch = stream.next()) {
+      if (ch == "'" && maybeEnd) {
+        state.tokenize = tokenBase;
+        break;
+      }
+      maybeEnd = (ch == "'");
+    }
+    return "strong";
+  }
+
+  // tw code
+  function twTokenCode(stream, state) {
+    var sb = state.block;
+
+    if (sb && stream.current()) {
+      return "comment";
+    }
+
+    if (!sb && stream.match(reUntilCodeStop)) {
+      state.tokenize = tokenBase;
+      return "comment";
+    }
+
+    if (sb && stream.sol() && stream.match(reCodeBlockStop)) {
+      state.tokenize = tokenBase;
+      return "comment";
+    }
+
+    stream.next();
+    return "comment";
+  }
+
+  // tw em / italic
+  function twTokenEm(stream, state) {
+    var maybeEnd = false,
+    ch;
+    while (ch = stream.next()) {
+      if (ch == "/" && maybeEnd) {
+        state.tokenize = tokenBase;
+        break;
+      }
+      maybeEnd = (ch == "/");
+    }
+    return "em";
+  }
+
+  // tw underlined text
+  function twTokenUnderline(stream, state) {
+    var maybeEnd = false,
+    ch;
+    while (ch = stream.next()) {
+      if (ch == "_" && maybeEnd) {
+        state.tokenize = tokenBase;
+        break;
+      }
+      maybeEnd = (ch == "_");
+    }
+    return "underlined";
+  }
+
+  // tw strike through text looks ugly
+  // change CSS if needed
+  function twTokenStrike(stream, state) {
+    var maybeEnd = false, ch;
+
+    while (ch = stream.next()) {
+      if (ch == "-" && maybeEnd) {
+        state.tokenize = tokenBase;
+        break;
+      }
+      maybeEnd = (ch == "-");
+    }
+    return "strikethrough";
+  }
+
+  // macro
+  function twTokenMacro(stream, state) {
+    if (stream.current() == '<<') {
+      return 'macro';
+    }
+
+    var ch = stream.next();
+    if (!ch) {
+      state.tokenize = tokenBase;
+      return null;
+    }
+    if (ch == ">") {
+      if (stream.peek() == '>') {
+        stream.next();
+        state.tokenize = tokenBase;
+        return "macro";
+      }
+    }
+
+    stream.eatWhile(/[\w\$_]/);
+    return keywords.propertyIsEnumerable(stream.current()) ? "keyword" : null
+  }
+
+  // Interface
+  return {
+    startState: function () {
+      return {tokenize: tokenBase};
+    },
+
+    token: function (stream, state) {
+      if (stream.eatSpace()) return null;
+      var style = state.tokenize(stream, state);
+      return style;
+    }
+  };
+});
+
+CodeMirror.defineMIME("text/x-tiddlywiki", "tiddlywiki");
+});
diff --git a/public/codemirror/mode/tiki/index.html b/public/codemirror/mode/tiki/index.html
new file mode 100644
index 000000000..091c5fb2a
--- /dev/null
+++ b/public/codemirror/mode/tiki/index.html
@@ -0,0 +1,95 @@
+
+
+CodeMirror: Tiki wiki mode
+
+
+
+
+
+
+
+
+
+
+

+
Tiki wiki mode

+
+
+

+
+
+
+

diff --git a/public/codemirror/mode/tiki/tiki.css b/public/codemirror/mode/tiki/tiki.css
new file mode 100644
index 000000000..1d8704c78
--- /dev/null
+++ b/public/codemirror/mode/tiki/tiki.css
@@ -0,0 +1,26 @@
+.cm-tw-syntaxerror {
+	color: #FFF;
+	background-color: #900;
+}
+
+.cm-tw-deleted {
+	text-decoration: line-through;
+}
+
+.cm-tw-header5 {
+	font-weight: bold;
+}
+.cm-tw-listitem:first-child { /*Added first child to fix duplicate padding when highlighting*/
+	padding-left: 10px;
+}
+
+.cm-tw-box {
+	border-top-width: 0px !important;
+	border-style: solid;
+	border-width: 1px;
+	border-color: inherit;
+}
+
+.cm-tw-underline {
+	text-decoration: underline;
+}
\ No newline at end of file
diff --git a/public/codemirror/mode/tiki/tiki.js b/public/codemirror/mode/tiki/tiki.js
new file mode 100644
index 000000000..5e05b1ff0
--- /dev/null
+++ b/public/codemirror/mode/tiki/tiki.js
@@ -0,0 +1,312 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode('tiki', function(config) {
+  function inBlock(style, terminator, returnTokenizer) {
+    return function(stream, state) {
+      while (!stream.eol()) {
+        if (stream.match(terminator)) {
+          state.tokenize = inText;
+          break;
+        }
+        stream.next();
+      }
+
+      if (returnTokenizer) state.tokenize = returnTokenizer;
+
+      return style;
+    };
+  }
+
+  function inLine(style) {
+    return function(stream, state) {
+      while(!stream.eol()) {
+        stream.next();
+      }
+      state.tokenize = inText;
+      return style;
+    };
+  }
+
+  function inText(stream, state) {
+    function chain(parser) {
+      state.tokenize = parser;
+      return parser(stream, state);
+    }
+
+    var sol = stream.sol();
+    var ch = stream.next();
+
+    //non start of line
+    switch (ch) { //switch is generally much faster than if, so it is used here
+    case "{": //plugin
+      stream.eat("/");
+      stream.eatSpace();
+      stream.eatWhile(/[^\s\u00a0=\"\'\/?(}]/);
+      state.tokenize = inPlugin;
+      return "tag";
+    case "_": //bold
+      if (stream.eat("_"))
+        return chain(inBlock("strong", "__", inText));
+      break;
+    case "'": //italics
+      if (stream.eat("'"))
+        return chain(inBlock("em", "''", inText));
+      break;
+    case "(":// Wiki Link
+      if (stream.eat("("))
+        return chain(inBlock("variable-2", "))", inText));
+      break;
+    case "[":// Weblink
+      return chain(inBlock("variable-3", "]", inText));
+      break;
+    case "|": //table
+      if (stream.eat("|"))
+        return chain(inBlock("comment", "||"));
+      break;
+    case "-":
+      if (stream.eat("=")) {//titleBar
+        return chain(inBlock("header string", "=-", inText));
+      } else if (stream.eat("-")) {//deleted
+        return chain(inBlock("error tw-deleted", "--", inText));
+      }
+      break;
+    case "=": //underline
+      if (stream.match("=="))
+        return chain(inBlock("tw-underline", "===", inText));
+      break;
+    case ":":
+      if (stream.eat(":"))
+        return chain(inBlock("comment", "::"));
+      break;
+    case "^": //box
+      return chain(inBlock("tw-box", "^"));
+      break;
+    case "~": //np
+      if (stream.match("np~"))
+        return chain(inBlock("meta", "~/np~"));
+      break;
+    }
+
+    //start of line types
+    if (sol) {
+      switch (ch) {
+      case "!": //header at start of line
+        if (stream.match('!!!!!')) {
+          return chain(inLine("header string"));
+        } else if (stream.match('!!!!')) {
+          return chain(inLine("header string"));
+        } else if (stream.match('!!!')) {
+          return chain(inLine("header string"));
+        } else if (stream.match('!!')) {
+          return chain(inLine("header string"));
+        } else {
+          return chain(inLine("header string"));
+        }
+        break;
+      case "*": //unordered list line item, or 
  •  at start of line
+      case "#": //ordered list line item, or 
  •  at start of line
+      case "+": //ordered list line item, or 
  •  at start of line
+        return chain(inLine("tw-listitem bracket"));
+        break;
+      }
+    }
+
+    //stream.eatWhile(/[&{]/); was eating up plugins, turned off to act less like html and more like tiki
+    return null;
+  }
+
+  var indentUnit = config.indentUnit;
+
+  // Return variables for tokenizers
+  var pluginName, type;
+  function inPlugin(stream, state) {
+    var ch = stream.next();
+    var peek = stream.peek();
+
+    if (ch == "}") {
+      state.tokenize = inText;
+      //type = ch == ")" ? "endPlugin" : "selfclosePlugin"; inPlugin
+      return "tag";
+    } else if (ch == "(" || ch == ")") {
+      return "bracket";
+    } else if (ch == "=") {
+      type = "equals";
+
+      if (peek == ">") {
+        ch = stream.next();
+        peek = stream.peek();
+      }
+
+      //here we detect values directly after equal character with no quotes
+      if (!/[\'\"]/.test(peek)) {
+        state.tokenize = inAttributeNoQuote();
+      }
+      //end detect values
+
+      return "operator";
+    } else if (/[\'\"]/.test(ch)) {
+      state.tokenize = inAttribute(ch);
+      return state.tokenize(stream, state);
+    } else {
+      stream.eatWhile(/[^\s\u00a0=\"\'\/?]/);
+      return "keyword";
+    }
+  }
+
+  function inAttribute(quote) {
+    return function(stream, state) {
+      while (!stream.eol()) {
+        if (stream.next() == quote) {
+          state.tokenize = inPlugin;
+          break;
+        }
+      }
+      return "string";
+    };
+  }
+
+  function inAttributeNoQuote() {
+    return function(stream, state) {
+      while (!stream.eol()) {
+        var ch = stream.next();
+        var peek = stream.peek();
+        if (ch == " " || ch == "," || /[ )}]/.test(peek)) {
+      state.tokenize = inPlugin;
+      break;
+    }
+  }
+  return "string";
+};
+                     }
+
+var curState, setStyle;
+function pass() {
+  for (var i = arguments.length - 1; i >= 0; i--) curState.cc.push(arguments[i]);
+}
+
+function cont() {
+  pass.apply(null, arguments);
+  return true;
+}
+
+function pushContext(pluginName, startOfLine) {
+  var noIndent = curState.context && curState.context.noIndent;
+  curState.context = {
+    prev: curState.context,
+    pluginName: pluginName,
+    indent: curState.indented,
+    startOfLine: startOfLine,
+    noIndent: noIndent
+  };
+}
+
+function popContext() {
+  if (curState.context) curState.context = curState.context.prev;
+}
+
+function element(type) {
+  if (type == "openPlugin") {curState.pluginName = pluginName; return cont(attributes, endplugin(curState.startOfLine));}
+  else if (type == "closePlugin") {
+    var err = false;
+    if (curState.context) {
+      err = curState.context.pluginName != pluginName;
+      popContext();
+    } else {
+      err = true;
+    }
+    if (err) setStyle = "error";
+    return cont(endcloseplugin(err));
+  }
+  else if (type == "string") {
+    if (!curState.context || curState.context.name != "!cdata") pushContext("!cdata");
+    if (curState.tokenize == inText) popContext();
+    return cont();
+  }
+  else return cont();
+}
+
+function endplugin(startOfLine) {
+  return function(type) {
+    if (
+      type == "selfclosePlugin" ||
+        type == "endPlugin"
+    )
+      return cont();
+    if (type == "endPlugin") {pushContext(curState.pluginName, startOfLine); return cont();}
+    return cont();
+  };
+}
+
+function endcloseplugin(err) {
+  return function(type) {
+    if (err) setStyle = "error";
+    if (type == "endPlugin") return cont();
+    return pass();
+  };
+}
+
+function attributes(type) {
+  if (type == "keyword") {setStyle = "attribute"; return cont(attributes);}
+  if (type == "equals") return cont(attvalue, attributes);
+  return pass();
+}
+function attvalue(type) {
+  if (type == "keyword") {setStyle = "string"; return cont();}
+  if (type == "string") return cont(attvaluemaybe);
+  return pass();
+}
+function attvaluemaybe(type) {
+  if (type == "string") return cont(attvaluemaybe);
+  else return pass();
+}
+return {
+  startState: function() {
+    return {tokenize: inText, cc: [], indented: 0, startOfLine: true, pluginName: null, context: null};
+  },
+  token: function(stream, state) {
+    if (stream.sol()) {
+      state.startOfLine = true;
+      state.indented = stream.indentation();
+    }
+    if (stream.eatSpace()) return null;
+
+    setStyle = type = pluginName = null;
+    var style = state.tokenize(stream, state);
+    if ((style || type) && style != "comment") {
+      curState = state;
+      while (true) {
+        var comb = state.cc.pop() || element;
+        if (comb(type || style)) break;
+      }
+    }
+    state.startOfLine = false;
+    return setStyle || style;
+  },
+  indent: function(state, textAfter) {
+    var context = state.context;
+    if (context && context.noIndent) return 0;
+    if (context && /^{\//.test(textAfter))
+        context = context.prev;
+        while (context && !context.startOfLine)
+          context = context.prev;
+        if (context) return context.indent + indentUnit;
+        else return 0;
+       },
+    electricChars: "/"
+  };
+});
+
+CodeMirror.defineMIME("text/tiki", "tiki");
+
+});
diff --git a/public/codemirror/mode/toml/index.html b/public/codemirror/mode/toml/index.html
new file mode 100644
index 000000000..90a2a0215
--- /dev/null
+++ b/public/codemirror/mode/toml/index.html
@@ -0,0 +1,73 @@
+
+
+CodeMirror: TOML Mode
+
+
+
+
+
+
+
+
+
+
    
+
    TOML Mode
    
+
    
+    
+    
    The TOML Mode
    
+      
     Created by Forbes Lindesay.
    
+    
    MIME type defined: text/x-toml.
    
+  
    
diff --git a/public/codemirror/mode/toml/toml.js b/public/codemirror/mode/toml/toml.js
new file mode 100644
index 000000000..baeca1556
--- /dev/null
+++ b/public/codemirror/mode/toml/toml.js
@@ -0,0 +1,88 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("toml", function () {
+  return {
+    startState: function () {
+      return {
+        inString: false,
+        stringType: "",
+        lhs: true,
+        inArray: 0
+      };
+    },
+    token: function (stream, state) {
+      //check for state changes
+      if (!state.inString && ((stream.peek() == '"') || (stream.peek() == "'"))) {
+        state.stringType = stream.peek();
+        stream.next(); // Skip quote
+        state.inString = true; // Update state
+      }
+      if (stream.sol() && state.inArray === 0) {
+        state.lhs = true;
+      }
+      //return state
+      if (state.inString) {
+        while (state.inString && !stream.eol()) {
+          if (stream.peek() === state.stringType) {
+            stream.next(); // Skip quote
+            state.inString = false; // Clear flag
+          } else if (stream.peek() === '\\') {
+            stream.next();
+            stream.next();
+          } else {
+            stream.match(/^.[^\\\"\']*/);
+          }
+        }
+        return state.lhs ? "property string" : "string"; // Token style
+      } else if (state.inArray && stream.peek() === ']') {
+        stream.next();
+        state.inArray--;
+        return 'bracket';
+      } else if (state.lhs && stream.peek() === '[' && stream.skipTo(']')) {
+        stream.next();//skip closing ]
+        // array of objects has an extra open & close []
+        if (stream.peek() === ']') stream.next();
+        return "atom";
+      } else if (stream.peek() === "#") {
+        stream.skipToEnd();
+        return "comment";
+      } else if (stream.eatSpace()) {
+        return null;
+      } else if (state.lhs && stream.eatWhile(function (c) { return c != '=' && c != ' '; })) {
+        return "property";
+      } else if (state.lhs && stream.peek() === "=") {
+        stream.next();
+        state.lhs = false;
+        return null;
+      } else if (!state.lhs && stream.match(/^\d\d\d\d[\d\-\:\.T]*Z/)) {
+        return 'atom'; //date
+      } else if (!state.lhs && (stream.match('true') || stream.match('false'))) {
+        return 'atom';
+      } else if (!state.lhs && stream.peek() === '[') {
+        state.inArray++;
+        stream.next();
+        return 'bracket';
+      } else if (!state.lhs && stream.match(/^\-?\d+(?:\.\d+)?/)) {
+        return 'number';
+      } else if (!stream.eatSpace()) {
+        stream.next();
+      }
+      return null;
+    }
+  };
+});
+
+CodeMirror.defineMIME('text/x-toml', 'toml');
+
+});
diff --git a/public/codemirror/mode/tornado/index.html b/public/codemirror/mode/tornado/index.html
new file mode 100644
index 000000000..8ee7ef56c
--- /dev/null
+++ b/public/codemirror/mode/tornado/index.html
@@ -0,0 +1,63 @@
+
+
+CodeMirror: Tornado template mode
+
+
+
+
+
+
+
+
+
+
+
+
+
    
+
    Tornado template mode
    
+
    
+
+    
+
+    
    Mode for HTML with embedded Tornado template markup.
    
+
+    
    MIME types defined: text/x-tornado
    
+  
    
diff --git a/public/codemirror/mode/tornado/tornado.js b/public/codemirror/mode/tornado/tornado.js
new file mode 100644
index 000000000..dbfbc3489
--- /dev/null
+++ b/public/codemirror/mode/tornado/tornado.js
@@ -0,0 +1,68 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../htmlmixed/htmlmixed"),
+        require("../../addon/mode/overlay"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../htmlmixed/htmlmixed",
+            "../../addon/mode/overlay"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineMode("tornado:inner", function() {
+    var keywords = ["and","as","assert","autoescape","block","break","class","comment","context",
+                    "continue","datetime","def","del","elif","else","end","escape","except",
+                    "exec","extends","false","finally","for","from","global","if","import","in",
+                    "include","is","json_encode","lambda","length","linkify","load","module",
+                    "none","not","or","pass","print","put","raise","raw","return","self","set",
+                    "squeeze","super","true","try","url_escape","while","with","without","xhtml_escape","yield"];
+    keywords = new RegExp("^((" + keywords.join(")|(") + "))\\b");
+
+    function tokenBase (stream, state) {
+      stream.eatWhile(/[^\{]/);
+      var ch = stream.next();
+      if (ch == "{") {
+        if (ch = stream.eat(/\{|%|#/)) {
+          state.tokenize = inTag(ch);
+          return "tag";
+        }
+      }
+    }
+    function inTag (close) {
+      if (close == "{") {
+        close = "}";
+      }
+      return function (stream, state) {
+        var ch = stream.next();
+        if ((ch == close) && stream.eat("}")) {
+          state.tokenize = tokenBase;
+          return "tag";
+        }
+        if (stream.match(keywords)) {
+          return "keyword";
+        }
+        return close == "#" ? "comment" : "string";
+      };
+    }
+    return {
+      startState: function () {
+        return {tokenize: tokenBase};
+      },
+      token: function (stream, state) {
+        return state.tokenize(stream, state);
+      }
+    };
+  });
+
+  CodeMirror.defineMode("tornado", function(config) {
+    var htmlBase = CodeMirror.getMode(config, "text/html");
+    var tornadoInner = CodeMirror.getMode(config, "tornado:inner");
+    return CodeMirror.overlayMode(htmlBase, tornadoInner);
+  });
+
+  CodeMirror.defineMIME("text/x-tornado", "tornado");
+});
diff --git a/public/codemirror/mode/troff/index.html b/public/codemirror/mode/troff/index.html
new file mode 100644
index 000000000..7c5a54e54
--- /dev/null
+++ b/public/codemirror/mode/troff/index.html
@@ -0,0 +1,146 @@
+
+
+CodeMirror: troff mode
+
+
+
+
+
+
+
+
+
+
+
    
+
    troff
    
+
+
+
+
+
+
+
    MIME types defined: troff.
    
+
    
diff --git a/public/codemirror/mode/troff/troff.js b/public/codemirror/mode/troff/troff.js
new file mode 100644
index 000000000..86154b6e1
--- /dev/null
+++ b/public/codemirror/mode/troff/troff.js
@@ -0,0 +1,84 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object")
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd)
+    define(["../../lib/codemirror"], mod);
+  else
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode('troff', function() {
+
+  var words = {};
+
+  function tokenBase(stream) {
+    if (stream.eatSpace()) return null;
+
+    var sol = stream.sol();
+    var ch = stream.next();
+
+    if (ch === '\\') {
+      if (stream.match('fB') || stream.match('fR') || stream.match('fI') ||
+          stream.match('u')  || stream.match('d')  ||
+          stream.match('%')  || stream.match('&')) {
+        return 'string';
+      }
+      if (stream.match('m[')) {
+        stream.skipTo(']');
+        stream.next();
+        return 'string';
+      }
+      if (stream.match('s+') || stream.match('s-')) {
+        stream.eatWhile(/[\d-]/);
+        return 'string';
+      }
+      if (stream.match('\(') || stream.match('*\(')) {
+        stream.eatWhile(/[\w-]/);
+        return 'string';
+      }
+      return 'string';
+    }
+    if (sol && (ch === '.' || ch === '\'')) {
+      if (stream.eat('\\') && stream.eat('\"')) {
+        stream.skipToEnd();
+        return 'comment';
+      }
+    }
+    if (sol && ch === '.') {
+      if (stream.match('B ') || stream.match('I ') || stream.match('R ')) {
+        return 'attribute';
+      }
+      if (stream.match('TH ') || stream.match('SH ') || stream.match('SS ') || stream.match('HP ')) {
+        stream.skipToEnd();
+        return 'quote';
+      }
+      if ((stream.match(/[A-Z]/) && stream.match(/[A-Z]/)) || (stream.match(/[a-z]/) && stream.match(/[a-z]/))) {
+        return 'attribute';
+      }
+    }
+    stream.eatWhile(/[\w-]/);
+    var cur = stream.current();
+    return words.hasOwnProperty(cur) ? words[cur] : null;
+  }
+
+  function tokenize(stream, state) {
+    return (state.tokens[0] || tokenBase) (stream, state);
+  };
+
+  return {
+    startState: function() {return {tokens:[]};},
+    token: function(stream, state) {
+      return tokenize(stream, state);
+    }
+  };
+});
+
+CodeMirror.defineMIME('text/troff', 'troff');
+CodeMirror.defineMIME('text/x-troff', 'troff');
+CodeMirror.defineMIME('application/x-troff', 'troff');
+
+});
diff --git a/public/codemirror/mode/ttcn-cfg/index.html b/public/codemirror/mode/ttcn-cfg/index.html
new file mode 100644
index 000000000..4a4cd4571
--- /dev/null
+++ b/public/codemirror/mode/ttcn-cfg/index.html
@@ -0,0 +1,115 @@
+
+
+CodeMirror: TTCN-CFG mode
+
+
+
+
+
+
+
+
+
    
+    
    TTCN-CFG example
    
+    
    
+        
+    
    
+
+    
+    
    
+    
    Language: Testing and Test Control Notation -
+        Configuration files
+        (TTCN-CFG)
+    
    
+    
    MIME types defined: text/x-ttcn-cfg.
    
+
+    
    
+    
    The development of this mode has been sponsored by Ericsson
+    .
    
+    
    Coded by Asmelash Tsegay Gebretsadkan 
    
+
    
+
diff --git a/public/codemirror/mode/ttcn-cfg/ttcn-cfg.js b/public/codemirror/mode/ttcn-cfg/ttcn-cfg.js
new file mode 100644
index 000000000..e10805119
--- /dev/null
+++ b/public/codemirror/mode/ttcn-cfg/ttcn-cfg.js
@@ -0,0 +1,214 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineMode("ttcn-cfg", function(config, parserConfig) {
+    var indentUnit = config.indentUnit,
+        keywords = parserConfig.keywords || {},
+        fileNCtrlMaskOptions = parserConfig.fileNCtrlMaskOptions || {},
+        externalCommands = parserConfig.externalCommands || {},
+        multiLineStrings = parserConfig.multiLineStrings,
+        indentStatements = parserConfig.indentStatements !== false;
+    var isOperatorChar = /[\|]/;
+    var curPunc;
+
+    function tokenBase(stream, state) {
+      var ch = stream.next();
+      if (ch == '"' || ch == "'") {
+        state.tokenize = tokenString(ch);
+        return state.tokenize(stream, state);
+      }
+      if (/[:=]/.test(ch)) {
+        curPunc = ch;
+        return "punctuation";
+      }
+      if (ch == "#"){
+        stream.skipToEnd();
+        return "comment";
+      }
+      if (/\d/.test(ch)) {
+        stream.eatWhile(/[\w\.]/);
+        return "number";
+      }
+      if (isOperatorChar.test(ch)) {
+        stream.eatWhile(isOperatorChar);
+        return "operator";
+      }
+      if (ch == "["){
+        stream.eatWhile(/[\w_\]]/);
+        return "number sectionTitle";
+      }
+
+      stream.eatWhile(/[\w\$_]/);
+      var cur = stream.current();
+      if (keywords.propertyIsEnumerable(cur)) return "keyword";
+      if (fileNCtrlMaskOptions.propertyIsEnumerable(cur))
+        return "negative fileNCtrlMaskOptions";
+      if (externalCommands.propertyIsEnumerable(cur)) return "negative externalCommands";
+
+      return "variable";
+    }
+
+    function tokenString(quote) {
+      return function(stream, state) {
+        var escaped = false, next, end = false;
+        while ((next = stream.next()) != null) {
+          if (next == quote && !escaped){
+            var afterNext = stream.peek();
+            //look if the character if the quote is like the B in '10100010'B
+            if (afterNext){
+              afterNext = afterNext.toLowerCase();
+              if(afterNext == "b" || afterNext == "h" || afterNext == "o")
+                stream.next();
+            }
+            end = true; break;
+          }
+          escaped = !escaped && next == "\\";
+        }
+        if (end || !(escaped || multiLineStrings))
+          state.tokenize = null;
+        return "string";
+      };
+    }
+
+    function Context(indented, column, type, align, prev) {
+      this.indented = indented;
+      this.column = column;
+      this.type = type;
+      this.align = align;
+      this.prev = prev;
+    }
+    function pushContext(state, col, type) {
+      var indent = state.indented;
+      if (state.context && state.context.type == "statement")
+        indent = state.context.indented;
+      return state.context = new Context(indent, col, type, null, state.context);
+    }
+    function popContext(state) {
+      var t = state.context.type;
+      if (t == ")" || t == "]" || t == "}")
+        state.indented = state.context.indented;
+      return state.context = state.context.prev;
+    }
+
+    //Interface
+    return {
+      startState: function(basecolumn) {
+        return {
+          tokenize: null,
+          context: new Context((basecolumn || 0) - indentUnit, 0, "top", false),
+          indented: 0,
+          startOfLine: true
+        };
+      },
+
+      token: function(stream, state) {
+        var ctx = state.context;
+        if (stream.sol()) {
+          if (ctx.align == null) ctx.align = false;
+          state.indented = stream.indentation();
+          state.startOfLine = true;
+        }
+        if (stream.eatSpace()) return null;
+        curPunc = null;
+        var style = (state.tokenize || tokenBase)(stream, state);
+        if (style == "comment") return style;
+        if (ctx.align == null) ctx.align = true;
+
+        if ((curPunc == ";" || curPunc == ":" || curPunc == ",")
+            && ctx.type == "statement"){
+          popContext(state);
+        }
+        else if (curPunc == "{") pushContext(state, stream.column(), "}");
+        else if (curPunc == "[") pushContext(state, stream.column(), "]");
+        else if (curPunc == "(") pushContext(state, stream.column(), ")");
+        else if (curPunc == "}") {
+          while (ctx.type == "statement") ctx = popContext(state);
+          if (ctx.type == "}") ctx = popContext(state);
+          while (ctx.type == "statement") ctx = popContext(state);
+        }
+        else if (curPunc == ctx.type) popContext(state);
+        else if (indentStatements && (((ctx.type == "}" || ctx.type == "top")
+            && curPunc != ';') || (ctx.type == "statement"
+            && curPunc == "newstatement")))
+          pushContext(state, stream.column(), "statement");
+        state.startOfLine = false;
+        return style;
+      },
+
+      electricChars: "{}",
+      lineComment: "#",
+      fold: "brace"
+    };
+  });
+
+  function words(str) {
+    var obj = {}, words = str.split(" ");
+    for (var i = 0; i < words.length; ++i)
+      obj[words[i]] = true;
+    return obj;
+  }
+
+  CodeMirror.defineMIME("text/x-ttcn-cfg", {
+    name: "ttcn-cfg",
+    keywords: words("Yes No LogFile FileMask ConsoleMask AppendFile" +
+    " TimeStampFormat LogEventTypes SourceInfoFormat" +
+    " LogEntityName LogSourceInfo DiskFullAction" +
+    " LogFileNumber LogFileSize MatchingHints Detailed" +
+    " Compact SubCategories Stack Single None Seconds" +
+    " DateTime Time Stop Error Retry Delete TCPPort KillTimer" +
+    " NumHCs UnixSocketsEnabled LocalAddress"),
+    fileNCtrlMaskOptions: words("TTCN_EXECUTOR TTCN_ERROR TTCN_WARNING" +
+    " TTCN_PORTEVENT TTCN_TIMEROP TTCN_VERDICTOP" +
+    " TTCN_DEFAULTOP TTCN_TESTCASE TTCN_ACTION" +
+    " TTCN_USER TTCN_FUNCTION TTCN_STATISTICS" +
+    " TTCN_PARALLEL TTCN_MATCHING TTCN_DEBUG" +
+    " EXECUTOR ERROR WARNING PORTEVENT TIMEROP" +
+    " VERDICTOP DEFAULTOP TESTCASE ACTION USER" +
+    " FUNCTION STATISTICS PARALLEL MATCHING DEBUG" +
+    " LOG_ALL LOG_NOTHING ACTION_UNQUALIFIED" +
+    " DEBUG_ENCDEC DEBUG_TESTPORT" +
+    " DEBUG_UNQUALIFIED DEFAULTOP_ACTIVATE" +
+    " DEFAULTOP_DEACTIVATE DEFAULTOP_EXIT" +
+    " DEFAULTOP_UNQUALIFIED ERROR_UNQUALIFIED" +
+    " EXECUTOR_COMPONENT EXECUTOR_CONFIGDATA" +
+    " EXECUTOR_EXTCOMMAND EXECUTOR_LOGOPTIONS" +
+    " EXECUTOR_RUNTIME EXECUTOR_UNQUALIFIED" +
+    " FUNCTION_RND FUNCTION_UNQUALIFIED" +
+    " MATCHING_DONE MATCHING_MCSUCCESS" +
+    " MATCHING_MCUNSUCC MATCHING_MMSUCCESS" +
+    " MATCHING_MMUNSUCC MATCHING_PCSUCCESS" +
+    " MATCHING_PCUNSUCC MATCHING_PMSUCCESS" +
+    " MATCHING_PMUNSUCC MATCHING_PROBLEM" +
+    " MATCHING_TIMEOUT MATCHING_UNQUALIFIED" +
+    " PARALLEL_PORTCONN PARALLEL_PORTMAP" +
+    " PARALLEL_PTC PARALLEL_UNQUALIFIED" +
+    " PORTEVENT_DUALRECV PORTEVENT_DUALSEND" +
+    " PORTEVENT_MCRECV PORTEVENT_MCSEND" +
+    " PORTEVENT_MMRECV PORTEVENT_MMSEND" +
+    " PORTEVENT_MQUEUE PORTEVENT_PCIN" +
+    " PORTEVENT_PCOUT PORTEVENT_PMIN" +
+    " PORTEVENT_PMOUT PORTEVENT_PQUEUE" +
+    " PORTEVENT_STATE PORTEVENT_UNQUALIFIED" +
+    " STATISTICS_UNQUALIFIED STATISTICS_VERDICT" +
+    " TESTCASE_FINISH TESTCASE_START" +
+    " TESTCASE_UNQUALIFIED TIMEROP_GUARD" +
+    " TIMEROP_READ TIMEROP_START TIMEROP_STOP" +
+    " TIMEROP_TIMEOUT TIMEROP_UNQUALIFIED" +
+    " USER_UNQUALIFIED VERDICTOP_FINAL" +
+    " VERDICTOP_GETVERDICT VERDICTOP_SETVERDICT" +
+    " VERDICTOP_UNQUALIFIED WARNING_UNQUALIFIED"),
+    externalCommands: words("BeginControlPart EndControlPart BeginTestCase" +
+    " EndTestCase"),
+    multiLineStrings: true
+  });
+});
\ No newline at end of file
diff --git a/public/codemirror/mode/ttcn/index.html b/public/codemirror/mode/ttcn/index.html
new file mode 100644
index 000000000..f1ef81131
--- /dev/null
+++ b/public/codemirror/mode/ttcn/index.html
@@ -0,0 +1,118 @@
+
+
+CodeMirror: TTCN mode
+
+
+
+
+
+
+
+
+
    
+    
    TTCN example
    
+    
    
+        
+    
    
+
+    
+    
    
+    
    Language: Testing and Test Control Notation
+        (TTCN)
+    
    
+    
    MIME types defined: text/x-ttcn,
+        text/x-ttcn3, text/x-ttcnpp.
    
+    
    
+    
    The development of this mode has been sponsored by Ericsson
+    .
    
+    
    Coded by Asmelash Tsegay Gebretsadkan 
    
+
    
+
diff --git a/public/codemirror/mode/ttcn/ttcn.js b/public/codemirror/mode/ttcn/ttcn.js
new file mode 100644
index 000000000..305185177
--- /dev/null
+++ b/public/codemirror/mode/ttcn/ttcn.js
@@ -0,0 +1,283 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineMode("ttcn", function(config, parserConfig) {
+    var indentUnit = config.indentUnit,
+        keywords = parserConfig.keywords || {},
+        builtin = parserConfig.builtin || {},
+        timerOps = parserConfig.timerOps || {},
+        portOps  = parserConfig.portOps || {},
+        configOps = parserConfig.configOps || {},
+        verdictOps = parserConfig.verdictOps || {},
+        sutOps = parserConfig.sutOps || {},
+        functionOps = parserConfig.functionOps || {},
+
+        verdictConsts = parserConfig.verdictConsts || {},
+        booleanConsts = parserConfig.booleanConsts || {},
+        otherConsts   = parserConfig.otherConsts || {},
+
+        types = parserConfig.types || {},
+        visibilityModifiers = parserConfig.visibilityModifiers || {},
+        templateMatch = parserConfig.templateMatch || {},
+        multiLineStrings = parserConfig.multiLineStrings,
+        indentStatements = parserConfig.indentStatements !== false;
+    var isOperatorChar = /[+\-*&@=<>!\/]/;
+    var curPunc;
+
+    function tokenBase(stream, state) {
+      var ch = stream.next();
+
+      if (ch == '"' || ch == "'") {
+        state.tokenize = tokenString(ch);
+        return state.tokenize(stream, state);
+      }
+      if (/[\[\]{}\(\),;\\:\?\.]/.test(ch)) {
+        curPunc = ch;
+        return "punctuation";
+      }
+      if (ch == "#"){
+        stream.skipToEnd();
+        return "atom preprocessor";
+      }
+      if (ch == "%"){
+        stream.eatWhile(/\b/);
+        return "atom ttcn3Macros";
+      }
+      if (/\d/.test(ch)) {
+        stream.eatWhile(/[\w\.]/);
+        return "number";
+      }
+      if (ch == "/") {
+        if (stream.eat("*")) {
+          state.tokenize = tokenComment;
+          return tokenComment(stream, state);
+        }
+        if (stream.eat("/")) {
+          stream.skipToEnd();
+          return "comment";
+        }
+      }
+      if (isOperatorChar.test(ch)) {
+        if(ch == "@"){
+          if(stream.match("try") || stream.match("catch")
+              || stream.match("lazy")){
+            return "keyword";
+          }
+        }
+        stream.eatWhile(isOperatorChar);
+        return "operator";
+      }
+      stream.eatWhile(/[\w\$_\xa1-\uffff]/);
+      var cur = stream.current();
+
+      if (keywords.propertyIsEnumerable(cur)) return "keyword";
+      if (builtin.propertyIsEnumerable(cur)) return "builtin";
+
+      if (timerOps.propertyIsEnumerable(cur)) return "def timerOps";
+      if (configOps.propertyIsEnumerable(cur)) return "def configOps";
+      if (verdictOps.propertyIsEnumerable(cur)) return "def verdictOps";
+      if (portOps.propertyIsEnumerable(cur)) return "def portOps";
+      if (sutOps.propertyIsEnumerable(cur)) return "def sutOps";
+      if (functionOps.propertyIsEnumerable(cur)) return "def functionOps";
+
+      if (verdictConsts.propertyIsEnumerable(cur)) return "string verdictConsts";
+      if (booleanConsts.propertyIsEnumerable(cur)) return "string booleanConsts";
+      if (otherConsts.propertyIsEnumerable(cur)) return "string otherConsts";
+
+      if (types.propertyIsEnumerable(cur)) return "builtin types";
+      if (visibilityModifiers.propertyIsEnumerable(cur))
+        return "builtin visibilityModifiers";
+      if (templateMatch.propertyIsEnumerable(cur)) return "atom templateMatch";
+
+      return "variable";
+    }
+
+    function tokenString(quote) {
+      return function(stream, state) {
+        var escaped = false, next, end = false;
+        while ((next = stream.next()) != null) {
+          if (next == quote && !escaped){
+            var afterQuote = stream.peek();
+            //look if the character after the quote is like the B in '10100010'B
+            if (afterQuote){
+              afterQuote = afterQuote.toLowerCase();
+              if(afterQuote == "b" || afterQuote == "h" || afterQuote == "o")
+                stream.next();
+            }
+            end = true; break;
+          }
+          escaped = !escaped && next == "\\";
+        }
+        if (end || !(escaped || multiLineStrings))
+          state.tokenize = null;
+        return "string";
+      };
+    }
+
+    function tokenComment(stream, state) {
+      var maybeEnd = false, ch;
+      while (ch = stream.next()) {
+        if (ch == "/" && maybeEnd) {
+          state.tokenize = null;
+          break;
+        }
+        maybeEnd = (ch == "*");
+      }
+      return "comment";
+    }
+
+    function Context(indented, column, type, align, prev) {
+      this.indented = indented;
+      this.column = column;
+      this.type = type;
+      this.align = align;
+      this.prev = prev;
+    }
+
+    function pushContext(state, col, type) {
+      var indent = state.indented;
+      if (state.context && state.context.type == "statement")
+        indent = state.context.indented;
+      return state.context = new Context(indent, col, type, null, state.context);
+    }
+
+    function popContext(state) {
+      var t = state.context.type;
+      if (t == ")" || t == "]" || t == "}")
+        state.indented = state.context.indented;
+      return state.context = state.context.prev;
+    }
+
+    //Interface
+    return {
+      startState: function(basecolumn) {
+        return {
+          tokenize: null,
+          context: new Context((basecolumn || 0) - indentUnit, 0, "top", false),
+          indented: 0,
+          startOfLine: true
+        };
+      },
+
+      token: function(stream, state) {
+        var ctx = state.context;
+        if (stream.sol()) {
+          if (ctx.align == null) ctx.align = false;
+          state.indented = stream.indentation();
+          state.startOfLine = true;
+        }
+        if (stream.eatSpace()) return null;
+        curPunc = null;
+        var style = (state.tokenize || tokenBase)(stream, state);
+        if (style == "comment") return style;
+        if (ctx.align == null) ctx.align = true;
+
+        if ((curPunc == ";" || curPunc == ":" || curPunc == ",")
+            && ctx.type == "statement"){
+          popContext(state);
+        }
+        else if (curPunc == "{") pushContext(state, stream.column(), "}");
+        else if (curPunc == "[") pushContext(state, stream.column(), "]");
+        else if (curPunc == "(") pushContext(state, stream.column(), ")");
+        else if (curPunc == "}") {
+          while (ctx.type == "statement") ctx = popContext(state);
+          if (ctx.type == "}") ctx = popContext(state);
+          while (ctx.type == "statement") ctx = popContext(state);
+        }
+        else if (curPunc == ctx.type) popContext(state);
+        else if (indentStatements &&
+            (((ctx.type == "}" || ctx.type == "top") && curPunc != ';') ||
+            (ctx.type == "statement" && curPunc == "newstatement")))
+          pushContext(state, stream.column(), "statement");
+
+        state.startOfLine = false;
+
+        return style;
+      },
+
+      electricChars: "{}",
+      blockCommentStart: "/*",
+      blockCommentEnd: "*/",
+      lineComment: "//",
+      fold: "brace"
+    };
+  });
+
+  function words(str) {
+    var obj = {}, words = str.split(" ");
+    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+    return obj;
+  }
+
+  function def(mimes, mode) {
+    if (typeof mimes == "string") mimes = [mimes];
+    var words = [];
+    function add(obj) {
+      if (obj) for (var prop in obj) if (obj.hasOwnProperty(prop))
+        words.push(prop);
+    }
+
+    add(mode.keywords);
+    add(mode.builtin);
+    add(mode.timerOps);
+    add(mode.portOps);
+
+    if (words.length) {
+      mode.helperType = mimes[0];
+      CodeMirror.registerHelper("hintWords", mimes[0], words);
+    }
+
+    for (var i = 0; i < mimes.length; ++i)
+      CodeMirror.defineMIME(mimes[i], mode);
+  }
+
+  def(["text/x-ttcn", "text/x-ttcn3", "text/x-ttcnpp"], {
+    name: "ttcn",
+    keywords: words("activate address alive all alt altstep and and4b any" +
+    " break case component const continue control deactivate" +
+    " display do else encode enumerated except exception" +
+    " execute extends extension external for from function" +
+    " goto group if import in infinity inout interleave" +
+    " label language length log match message mixed mod" +
+    " modifies module modulepar mtc noblock not not4b nowait" +
+    " of on optional or or4b out override param pattern port" +
+    " procedure record recursive rem repeat return runs select" +
+    " self sender set signature system template testcase to" +
+    " type union value valueof var variant while with xor xor4b"),
+    builtin: words("bit2hex bit2int bit2oct bit2str char2int char2oct encvalue" +
+    " decomp decvalue float2int float2str hex2bit hex2int" +
+    " hex2oct hex2str int2bit int2char int2float int2hex" +
+    " int2oct int2str int2unichar isbound ischosen ispresent" +
+    " isvalue lengthof log2str oct2bit oct2char oct2hex oct2int" +
+    " oct2str regexp replace rnd sizeof str2bit str2float" +
+    " str2hex str2int str2oct substr unichar2int unichar2char" +
+    " enum2int"),
+    types: words("anytype bitstring boolean char charstring default float" +
+    " hexstring integer objid octetstring universal verdicttype timer"),
+    timerOps: words("read running start stop timeout"),
+    portOps: words("call catch check clear getcall getreply halt raise receive" +
+    " reply send trigger"),
+    configOps: words("create connect disconnect done kill killed map unmap"),
+    verdictOps: words("getverdict setverdict"),
+    sutOps: words("action"),
+    functionOps: words("apply derefers refers"),
+
+    verdictConsts: words("error fail inconc none pass"),
+    booleanConsts: words("true false"),
+    otherConsts: words("null NULL omit"),
+
+    visibilityModifiers: words("private public friend"),
+    templateMatch: words("complement ifpresent subset superset permutation"),
+    multiLineStrings: true
+  });
+});
diff --git a/public/codemirror/mode/turtle/index.html b/public/codemirror/mode/turtle/index.html
new file mode 100644
index 000000000..a4962b617
--- /dev/null
+++ b/public/codemirror/mode/turtle/index.html
@@ -0,0 +1,50 @@
+
+
+CodeMirror: Turtle mode
+
+
+
+
+
+
+
+
+
+
    
+
    Turtle mode
    
+
    
+    
+
+    
    MIME types defined: text/turtle.
    
+
+  
    
diff --git a/public/codemirror/mode/turtle/turtle.js b/public/codemirror/mode/turtle/turtle.js
new file mode 100644
index 000000000..0988f0a44
--- /dev/null
+++ b/public/codemirror/mode/turtle/turtle.js
@@ -0,0 +1,162 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("turtle", function(config) {
+  var indentUnit = config.indentUnit;
+  var curPunc;
+
+  function wordRegexp(words) {
+    return new RegExp("^(?:" + words.join("|") + ")$", "i");
+  }
+  var ops = wordRegexp([]);
+  var keywords = wordRegexp(["@prefix", "@base", "a"]);
+  var operatorChars = /[*+\-<>=&|]/;
+
+  function tokenBase(stream, state) {
+    var ch = stream.next();
+    curPunc = null;
+    if (ch == "<" && !stream.match(/^[\s\u00a0=]/, false)) {
+      stream.match(/^[^\s\u00a0>]*>?/);
+      return "atom";
+    }
+    else if (ch == "\"" || ch == "'") {
+      state.tokenize = tokenLiteral(ch);
+      return state.tokenize(stream, state);
+    }
+    else if (/[{}\(\),\.;\[\]]/.test(ch)) {
+      curPunc = ch;
+      return null;
+    }
+    else if (ch == "#") {
+      stream.skipToEnd();
+      return "comment";
+    }
+    else if (operatorChars.test(ch)) {
+      stream.eatWhile(operatorChars);
+      return null;
+    }
+    else if (ch == ":") {
+          return "operator";
+        } else {
+      stream.eatWhile(/[_\w\d]/);
+      if(stream.peek() == ":") {
+        return "variable-3";
+      } else {
+             var word = stream.current();
+
+             if(keywords.test(word)) {
+                        return "meta";
+             }
+
+             if(ch >= "A" && ch <= "Z") {
+                    return "comment";
+                 } else {
+                        return "keyword";
+                 }
+      }
+      var word = stream.current();
+      if (ops.test(word))
+        return null;
+      else if (keywords.test(word))
+        return "meta";
+      else
+        return "variable";
+    }
+  }
+
+  function tokenLiteral(quote) {
+    return function(stream, state) {
+      var escaped = false, ch;
+      while ((ch = stream.next()) != null) {
+        if (ch == quote && !escaped) {
+          state.tokenize = tokenBase;
+          break;
+        }
+        escaped = !escaped && ch == "\\";
+      }
+      return "string";
+    };
+  }
+
+  function pushContext(state, type, col) {
+    state.context = {prev: state.context, indent: state.indent, col: col, type: type};
+  }
+  function popContext(state) {
+    state.indent = state.context.indent;
+    state.context = state.context.prev;
+  }
+
+  return {
+    startState: function() {
+      return {tokenize: tokenBase,
+              context: null,
+              indent: 0,
+              col: 0};
+    },
+
+    token: function(stream, state) {
+      if (stream.sol()) {
+        if (state.context && state.context.align == null) state.context.align = false;
+        state.indent = stream.indentation();
+      }
+      if (stream.eatSpace()) return null;
+      var style = state.tokenize(stream, state);
+
+      if (style != "comment" && state.context && state.context.align == null && state.context.type != "pattern") {
+        state.context.align = true;
+      }
+
+      if (curPunc == "(") pushContext(state, ")", stream.column());
+      else if (curPunc == "[") pushContext(state, "]", stream.column());
+      else if (curPunc == "{") pushContext(state, "}", stream.column());
+      else if (/[\]\}\)]/.test(curPunc)) {
+        while (state.context && state.context.type == "pattern") popContext(state);
+        if (state.context && curPunc == state.context.type) popContext(state);
+      }
+      else if (curPunc == "." && state.context && state.context.type == "pattern") popContext(state);
+      else if (/atom|string|variable/.test(style) && state.context) {
+        if (/[\}\]]/.test(state.context.type))
+          pushContext(state, "pattern", stream.column());
+        else if (state.context.type == "pattern" && !state.context.align) {
+          state.context.align = true;
+          state.context.col = stream.column();
+        }
+      }
+
+      return style;
+    },
+
+    indent: function(state, textAfter) {
+      var firstChar = textAfter && textAfter.charAt(0);
+      var context = state.context;
+      if (/[\]\}]/.test(firstChar))
+        while (context && context.type == "pattern") context = context.prev;
+
+      var closing = context && firstChar == context.type;
+      if (!context)
+        return 0;
+      else if (context.type == "pattern")
+        return context.col;
+      else if (context.align)
+        return context.col + (closing ? 0 : 1);
+      else
+        return context.indent + (closing ? 0 : indentUnit);
+    },
+
+    lineComment: "#"
+  };
+});
+
+CodeMirror.defineMIME("text/turtle", "turtle");
+
+});
diff --git a/public/codemirror/mode/twig/index.html b/public/codemirror/mode/twig/index.html
new file mode 100644
index 000000000..02493a5cb
--- /dev/null
+++ b/public/codemirror/mode/twig/index.html
@@ -0,0 +1,45 @@
+
+
+CodeMirror: Twig mode
+
+
+
+
+
+
+
+
+
+
    
+
    Twig mode
    
+
    
+    
+  
    
diff --git a/public/codemirror/mode/twig/twig.js b/public/codemirror/mode/twig/twig.js
new file mode 100644
index 000000000..1f2854bef
--- /dev/null
+++ b/public/codemirror/mode/twig/twig.js
@@ -0,0 +1,141 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"),  require("../../addon/mode/multiplex"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../../addon/mode/multiplex"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+  "use strict";
+
+  CodeMirror.defineMode("twig:inner", function() {
+    var keywords = ["and", "as", "autoescape", "endautoescape", "block", "do", "endblock", "else", "elseif", "extends", "for", "endfor", "embed", "endembed", "filter", "endfilter", "flush", "from", "if", "endif", "in", "is", "include", "import", "not", "or", "set", "spaceless", "endspaceless", "with", "endwith", "trans", "endtrans", "blocktrans", "endblocktrans", "macro", "endmacro", "use", "verbatim", "endverbatim"],
+        operator = /^[+\-*&%=<>!?|~^]/,
+        sign = /^[:\[\(\{]/,
+        atom = ["true", "false", "null", "empty", "defined", "divisibleby", "divisible by", "even", "odd", "iterable", "sameas", "same as"],
+        number = /^(\d[+\-\*\/])?\d+(\.\d+)?/;
+
+    keywords = new RegExp("((" + keywords.join(")|(") + "))\\b");
+    atom = new RegExp("((" + atom.join(")|(") + "))\\b");
+
+    function tokenBase (stream, state) {
+      var ch = stream.peek();
+
+      //Comment
+      if (state.incomment) {
+        if (!stream.skipTo("#}")) {
+          stream.skipToEnd();
+        } else {
+          stream.eatWhile(/\#|}/);
+          state.incomment = false;
+        }
+        return "comment";
+      //Tag
+      } else if (state.intag) {
+        //After operator
+        if (state.operator) {
+          state.operator = false;
+          if (stream.match(atom)) {
+            return "atom";
+          }
+          if (stream.match(number)) {
+            return "number";
+          }
+        }
+        //After sign
+        if (state.sign) {
+          state.sign = false;
+          if (stream.match(atom)) {
+            return "atom";
+          }
+          if (stream.match(number)) {
+            return "number";
+          }
+        }
+
+        if (state.instring) {
+          if (ch == state.instring) {
+            state.instring = false;
+          }
+          stream.next();
+          return "string";
+        } else if (ch == "'" || ch == '"') {
+          state.instring = ch;
+          stream.next();
+          return "string";
+        } else if (stream.match(state.intag + "}") || stream.eat("-") && stream.match(state.intag + "}")) {
+          state.intag = false;
+          return "tag";
+        } else if (stream.match(operator)) {
+          state.operator = true;
+          return "operator";
+        } else if (stream.match(sign)) {
+          state.sign = true;
+        } else {
+          if (stream.eat(" ") || stream.sol()) {
+            if (stream.match(keywords)) {
+              return "keyword";
+            }
+            if (stream.match(atom)) {
+              return "atom";
+            }
+            if (stream.match(number)) {
+              return "number";
+            }
+            if (stream.sol()) {
+              stream.next();
+            }
+          } else {
+            stream.next();
+          }
+
+        }
+        return "variable";
+      } else if (stream.eat("{")) {
+        if (ch = stream.eat("#")) {
+          state.incomment = true;
+          if (!stream.skipTo("#}")) {
+            stream.skipToEnd();
+          } else {
+            stream.eatWhile(/\#|}/);
+            state.incomment = false;
+          }
+          return "comment";
+        //Open tag
+        } else if (ch = stream.eat(/\{|%/)) {
+          //Cache close tag
+          state.intag = ch;
+          if (ch == "{") {
+            state.intag = "}";
+          }
+          stream.eat("-");
+          return "tag";
+        }
+      }
+      stream.next();
+    };
+
+    return {
+      startState: function () {
+        return {};
+      },
+      token: function (stream, state) {
+        return tokenBase(stream, state);
+      }
+    };
+  });
+
+  CodeMirror.defineMode("twig", function(config, parserConfig) {
+    var twigInner = CodeMirror.getMode(config, "twig:inner");
+    if (!parserConfig || !parserConfig.base) return twigInner;
+    return CodeMirror.multiplexingMode(
+      CodeMirror.getMode(config, parserConfig.base), {
+        open: /\{[{#%]/, close: /[}#%]\}/, mode: twigInner, parseDelimiters: true
+      }
+    );
+  });
+  CodeMirror.defineMIME("text/x-twig", "twig");
+});
diff --git a/public/codemirror/mode/vb/index.html b/public/codemirror/mode/vb/index.html
new file mode 100644
index 000000000..adcc44fd3
--- /dev/null
+++ b/public/codemirror/mode/vb/index.html
@@ -0,0 +1,102 @@
+
+
+CodeMirror: VB.NET mode
+
+
+
+
+
+
+
+
+
+
+
+
    
+
    VB.NET mode
    
+
+
+
+  
    
+  
+  
    
+  
    
+  
    MIME type defined: text/x-vb.
    
+
+
    
diff --git a/public/codemirror/mode/vb/vb.js b/public/codemirror/mode/vb/vb.js
new file mode 100644
index 000000000..d78f91f70
--- /dev/null
+++ b/public/codemirror/mode/vb/vb.js
@@ -0,0 +1,276 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("vb", function(conf, parserConf) {
+    var ERRORCLASS = 'error';
+
+    function wordRegexp(words) {
+        return new RegExp("^((" + words.join(")|(") + "))\\b", "i");
+    }
+
+    var singleOperators = new RegExp("^[\\+\\-\\*/%&\\\\|\\^~<>!]");
+    var singleDelimiters = new RegExp('^[\\(\\)\\[\\]\\{\\}@,:`=;\\.]');
+    var doubleOperators = new RegExp("^((==)|(<>)|(<=)|(>=)|(<>)|(<<)|(>>)|(//)|(\\*\\*))");
+    var doubleDelimiters = new RegExp("^((\\+=)|(\\-=)|(\\*=)|(%=)|(/=)|(&=)|(\\|=)|(\\^=))");
+    var tripleDelimiters = new RegExp("^((//=)|(>>=)|(<<=)|(\\*\\*=))");
+    var identifiers = new RegExp("^[_A-Za-z][_A-Za-z0-9]*");
+
+    var openingKeywords = ['class','module', 'sub','enum','select','while','if','function',  'get','set','property', 'try'];
+    var middleKeywords = ['else','elseif','case', 'catch'];
+    var endKeywords = ['next','loop'];
+
+    var operatorKeywords = ['and', 'or', 'not', 'xor', 'in'];
+    var wordOperators = wordRegexp(operatorKeywords);
+    var commonKeywords = ['as', 'dim', 'break',  'continue','optional', 'then',  'until',
+                          'goto', 'byval','byref','new','handles','property', 'return',
+                          'const','private', 'protected', 'friend', 'public', 'shared', 'static', 'true','false'];
+    var commontypes = ['integer','string','double','decimal','boolean','short','char', 'float','single'];
+
+    var keywords = wordRegexp(commonKeywords);
+    var types = wordRegexp(commontypes);
+    var stringPrefixes = '"';
+
+    var opening = wordRegexp(openingKeywords);
+    var middle = wordRegexp(middleKeywords);
+    var closing = wordRegexp(endKeywords);
+    var doubleClosing = wordRegexp(['end']);
+    var doOpening = wordRegexp(['do']);
+
+    var indentInfo = null;
+
+    CodeMirror.registerHelper("hintWords", "vb", openingKeywords.concat(middleKeywords).concat(endKeywords)
+                                .concat(operatorKeywords).concat(commonKeywords).concat(commontypes));
+
+    function indent(_stream, state) {
+      state.currentIndent++;
+    }
+
+    function dedent(_stream, state) {
+      state.currentIndent--;
+    }
+    // tokenizers
+    function tokenBase(stream, state) {
+        if (stream.eatSpace()) {
+            return null;
+        }
+
+        var ch = stream.peek();
+
+        // Handle Comments
+        if (ch === "'") {
+            stream.skipToEnd();
+            return 'comment';
+        }
+
+
+        // Handle Number Literals
+        if (stream.match(/^((&H)|(&O))?[0-9\.a-f]/i, false)) {
+            var floatLiteral = false;
+            // Floats
+            if (stream.match(/^\d*\.\d+F?/i)) { floatLiteral = true; }
+            else if (stream.match(/^\d+\.\d*F?/)) { floatLiteral = true; }
+            else if (stream.match(/^\.\d+F?/)) { floatLiteral = true; }
+
+            if (floatLiteral) {
+                // Float literals may be "imaginary"
+                stream.eat(/J/i);
+                return 'number';
+            }
+            // Integers
+            var intLiteral = false;
+            // Hex
+            if (stream.match(/^&H[0-9a-f]+/i)) { intLiteral = true; }
+            // Octal
+            else if (stream.match(/^&O[0-7]+/i)) { intLiteral = true; }
+            // Decimal
+            else if (stream.match(/^[1-9]\d*F?/)) {
+                // Decimal literals may be "imaginary"
+                stream.eat(/J/i);
+                // TODO - Can you have imaginary longs?
+                intLiteral = true;
+            }
+            // Zero by itself with no other piece of number.
+            else if (stream.match(/^0(?![\dx])/i)) { intLiteral = true; }
+            if (intLiteral) {
+                // Integer literals may be "long"
+                stream.eat(/L/i);
+                return 'number';
+            }
+        }
+
+        // Handle Strings
+        if (stream.match(stringPrefixes)) {
+            state.tokenize = tokenStringFactory(stream.current());
+            return state.tokenize(stream, state);
+        }
+
+        // Handle operators and Delimiters
+        if (stream.match(tripleDelimiters) || stream.match(doubleDelimiters)) {
+            return null;
+        }
+        if (stream.match(doubleOperators)
+            || stream.match(singleOperators)
+            || stream.match(wordOperators)) {
+            return 'operator';
+        }
+        if (stream.match(singleDelimiters)) {
+            return null;
+        }
+        if (stream.match(doOpening)) {
+            indent(stream,state);
+            state.doInCurrentLine = true;
+            return 'keyword';
+        }
+        if (stream.match(opening)) {
+            if (! state.doInCurrentLine)
+              indent(stream,state);
+            else
+              state.doInCurrentLine = false;
+            return 'keyword';
+        }
+        if (stream.match(middle)) {
+            return 'keyword';
+        }
+
+        if (stream.match(doubleClosing)) {
+            dedent(stream,state);
+            dedent(stream,state);
+            return 'keyword';
+        }
+        if (stream.match(closing)) {
+            dedent(stream,state);
+            return 'keyword';
+        }
+
+        if (stream.match(types)) {
+            return 'keyword';
+        }
+
+        if (stream.match(keywords)) {
+            return 'keyword';
+        }
+
+        if (stream.match(identifiers)) {
+            return 'variable';
+        }
+
+        // Handle non-detected items
+        stream.next();
+        return ERRORCLASS;
+    }
+
+    function tokenStringFactory(delimiter) {
+        var singleline = delimiter.length == 1;
+        var OUTCLASS = 'string';
+
+        return function(stream, state) {
+            while (!stream.eol()) {
+                stream.eatWhile(/[^'"]/);
+                if (stream.match(delimiter)) {
+                    state.tokenize = tokenBase;
+                    return OUTCLASS;
+                } else {
+                    stream.eat(/['"]/);
+                }
+            }
+            if (singleline) {
+                if (parserConf.singleLineStringErrors) {
+                    return ERRORCLASS;
+                } else {
+                    state.tokenize = tokenBase;
+                }
+            }
+            return OUTCLASS;
+        };
+    }
+
+
+    function tokenLexer(stream, state) {
+        var style = state.tokenize(stream, state);
+        var current = stream.current();
+
+        // Handle '.' connected identifiers
+        if (current === '.') {
+            style = state.tokenize(stream, state);
+            current = stream.current();
+            if (style === 'variable') {
+                return 'variable';
+            } else {
+                return ERRORCLASS;
+            }
+        }
+
+
+        var delimiter_index = '[({'.indexOf(current);
+        if (delimiter_index !== -1) {
+            indent(stream, state );
+        }
+        if (indentInfo === 'dedent') {
+            if (dedent(stream, state)) {
+                return ERRORCLASS;
+            }
+        }
+        delimiter_index = '])}'.indexOf(current);
+        if (delimiter_index !== -1) {
+            if (dedent(stream, state)) {
+                return ERRORCLASS;
+            }
+        }
+
+        return style;
+    }
+
+    var external = {
+        electricChars:"dDpPtTfFeE ",
+        startState: function() {
+            return {
+              tokenize: tokenBase,
+              lastToken: null,
+              currentIndent: 0,
+              nextLineIndent: 0,
+              doInCurrentLine: false
+
+
+          };
+        },
+
+        token: function(stream, state) {
+            if (stream.sol()) {
+              state.currentIndent += state.nextLineIndent;
+              state.nextLineIndent = 0;
+              state.doInCurrentLine = 0;
+            }
+            var style = tokenLexer(stream, state);
+
+            state.lastToken = {style:style, content: stream.current()};
+
+
+
+            return style;
+        },
+
+        indent: function(state, textAfter) {
+            var trueText = textAfter.replace(/^\s+|\s+$/g, '') ;
+            if (trueText.match(closing) || trueText.match(doubleClosing) || trueText.match(middle)) return conf.indentUnit*(state.currentIndent-1);
+            if(state.currentIndent < 0) return 0;
+            return state.currentIndent * conf.indentUnit;
+        },
+
+        lineComment: "'"
+    };
+    return external;
+});
+
+CodeMirror.defineMIME("text/x-vb", "vb");
+
+});
diff --git a/public/codemirror/mode/vbscript/index.html b/public/codemirror/mode/vbscript/index.html
new file mode 100644
index 000000000..ad7532d7d
--- /dev/null
+++ b/public/codemirror/mode/vbscript/index.html
@@ -0,0 +1,55 @@
+
+
+CodeMirror: VBScript mode
+
+
+
+
+
+
+
+
+
+
    
+
    VBScript mode
    
+
+
+
    
+
+    
+
+    
    MIME types defined: text/vbscript.
    
+  
    
diff --git a/public/codemirror/mode/vbscript/vbscript.js b/public/codemirror/mode/vbscript/vbscript.js
new file mode 100644
index 000000000..b66df2239
--- /dev/null
+++ b/public/codemirror/mode/vbscript/vbscript.js
@@ -0,0 +1,350 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+/*
+For extra ASP classic objects, initialize CodeMirror instance with this option:
+    isASP: true
+
+E.G.:
+    var editor = CodeMirror.fromTextArea(document.getElementById("code"), {
+        lineNumbers: true,
+        isASP: true
+      });
+*/
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("vbscript", function(conf, parserConf) {
+    var ERRORCLASS = 'error';
+
+    function wordRegexp(words) {
+        return new RegExp("^((" + words.join(")|(") + "))\\b", "i");
+    }
+
+    var singleOperators = new RegExp("^[\\+\\-\\*/&\\\\\\^<>=]");
+    var doubleOperators = new RegExp("^((<>)|(<=)|(>=))");
+    var singleDelimiters = new RegExp('^[\\.,]');
+    var brakets = new RegExp('^[\\(\\)]');
+    var identifiers = new RegExp("^[A-Za-z][_A-Za-z0-9]*");
+
+    var openingKeywords = ['class','sub','select','while','if','function', 'property', 'with', 'for'];
+    var middleKeywords = ['else','elseif','case'];
+    var endKeywords = ['next','loop','wend'];
+
+    var wordOperators = wordRegexp(['and', 'or', 'not', 'xor', 'is', 'mod', 'eqv', 'imp']);
+    var commonkeywords = ['dim', 'redim', 'then',  'until', 'randomize',
+                          'byval','byref','new','property', 'exit', 'in',
+                          'const','private', 'public',
+                          'get','set','let', 'stop', 'on error resume next', 'on error goto 0', 'option explicit', 'call', 'me'];
+
+    //This list was from: http://msdn.microsoft.com/en-us/library/f8tbc79x(v=vs.84).aspx
+    var atomWords = ['true', 'false', 'nothing', 'empty', 'null'];
+    //This list was from: http://msdn.microsoft.com/en-us/library/3ca8tfek(v=vs.84).aspx
+    var builtinFuncsWords = ['abs', 'array', 'asc', 'atn', 'cbool', 'cbyte', 'ccur', 'cdate', 'cdbl', 'chr', 'cint', 'clng', 'cos', 'csng', 'cstr', 'date', 'dateadd', 'datediff', 'datepart',
+                        'dateserial', 'datevalue', 'day', 'escape', 'eval', 'execute', 'exp', 'filter', 'formatcurrency', 'formatdatetime', 'formatnumber', 'formatpercent', 'getlocale', 'getobject',
+                        'getref', 'hex', 'hour', 'inputbox', 'instr', 'instrrev', 'int', 'fix', 'isarray', 'isdate', 'isempty', 'isnull', 'isnumeric', 'isobject', 'join', 'lbound', 'lcase', 'left',
+                        'len', 'loadpicture', 'log', 'ltrim', 'rtrim', 'trim', 'maths', 'mid', 'minute', 'month', 'monthname', 'msgbox', 'now', 'oct', 'replace', 'rgb', 'right', 'rnd', 'round',
+                        'scriptengine', 'scriptenginebuildversion', 'scriptenginemajorversion', 'scriptengineminorversion', 'second', 'setlocale', 'sgn', 'sin', 'space', 'split', 'sqr', 'strcomp',
+                        'string', 'strreverse', 'tan', 'time', 'timer', 'timeserial', 'timevalue', 'typename', 'ubound', 'ucase', 'unescape', 'vartype', 'weekday', 'weekdayname', 'year'];
+
+    //This list was from: http://msdn.microsoft.com/en-us/library/ydz4cfk3(v=vs.84).aspx
+    var builtinConsts = ['vbBlack', 'vbRed', 'vbGreen', 'vbYellow', 'vbBlue', 'vbMagenta', 'vbCyan', 'vbWhite', 'vbBinaryCompare', 'vbTextCompare',
+                         'vbSunday', 'vbMonday', 'vbTuesday', 'vbWednesday', 'vbThursday', 'vbFriday', 'vbSaturday', 'vbUseSystemDayOfWeek', 'vbFirstJan1', 'vbFirstFourDays', 'vbFirstFullWeek',
+                         'vbGeneralDate', 'vbLongDate', 'vbShortDate', 'vbLongTime', 'vbShortTime', 'vbObjectError',
+                         'vbOKOnly', 'vbOKCancel', 'vbAbortRetryIgnore', 'vbYesNoCancel', 'vbYesNo', 'vbRetryCancel', 'vbCritical', 'vbQuestion', 'vbExclamation', 'vbInformation', 'vbDefaultButton1', 'vbDefaultButton2',
+                         'vbDefaultButton3', 'vbDefaultButton4', 'vbApplicationModal', 'vbSystemModal', 'vbOK', 'vbCancel', 'vbAbort', 'vbRetry', 'vbIgnore', 'vbYes', 'vbNo',
+                         'vbCr', 'VbCrLf', 'vbFormFeed', 'vbLf', 'vbNewLine', 'vbNullChar', 'vbNullString', 'vbTab', 'vbVerticalTab', 'vbUseDefault', 'vbTrue', 'vbFalse',
+                         'vbEmpty', 'vbNull', 'vbInteger', 'vbLong', 'vbSingle', 'vbDouble', 'vbCurrency', 'vbDate', 'vbString', 'vbObject', 'vbError', 'vbBoolean', 'vbVariant', 'vbDataObject', 'vbDecimal', 'vbByte', 'vbArray'];
+    //This list was from: http://msdn.microsoft.com/en-us/library/hkc375ea(v=vs.84).aspx
+    var builtinObjsWords = ['WScript', 'err', 'debug', 'RegExp'];
+    var knownProperties = ['description', 'firstindex', 'global', 'helpcontext', 'helpfile', 'ignorecase', 'length', 'number', 'pattern', 'source', 'value', 'count'];
+    var knownMethods = ['clear', 'execute', 'raise', 'replace', 'test', 'write', 'writeline', 'close', 'open', 'state', 'eof', 'update', 'addnew', 'end', 'createobject', 'quit'];
+
+    var aspBuiltinObjsWords = ['server', 'response', 'request', 'session', 'application'];
+    var aspKnownProperties = ['buffer', 'cachecontrol', 'charset', 'contenttype', 'expires', 'expiresabsolute', 'isclientconnected', 'pics', 'status', //response
+                              'clientcertificate', 'cookies', 'form', 'querystring', 'servervariables', 'totalbytes', //request
+                              'contents', 'staticobjects', //application
+                              'codepage', 'lcid', 'sessionid', 'timeout', //session
+                              'scripttimeout']; //server
+    var aspKnownMethods = ['addheader', 'appendtolog', 'binarywrite', 'end', 'flush', 'redirect', //response
+                           'binaryread', //request
+                           'remove', 'removeall', 'lock', 'unlock', //application
+                           'abandon', //session
+                           'getlasterror', 'htmlencode', 'mappath', 'transfer', 'urlencode']; //server
+
+    var knownWords = knownMethods.concat(knownProperties);
+
+    builtinObjsWords = builtinObjsWords.concat(builtinConsts);
+
+    if (conf.isASP){
+        builtinObjsWords = builtinObjsWords.concat(aspBuiltinObjsWords);
+        knownWords = knownWords.concat(aspKnownMethods, aspKnownProperties);
+    };
+
+    var keywords = wordRegexp(commonkeywords);
+    var atoms = wordRegexp(atomWords);
+    var builtinFuncs = wordRegexp(builtinFuncsWords);
+    var builtinObjs = wordRegexp(builtinObjsWords);
+    var known = wordRegexp(knownWords);
+    var stringPrefixes = '"';
+
+    var opening = wordRegexp(openingKeywords);
+    var middle = wordRegexp(middleKeywords);
+    var closing = wordRegexp(endKeywords);
+    var doubleClosing = wordRegexp(['end']);
+    var doOpening = wordRegexp(['do']);
+    var noIndentWords = wordRegexp(['on error resume next', 'exit']);
+    var comment = wordRegexp(['rem']);
+
+
+    function indent(_stream, state) {
+      state.currentIndent++;
+    }
+
+    function dedent(_stream, state) {
+      state.currentIndent--;
+    }
+    // tokenizers
+    function tokenBase(stream, state) {
+        if (stream.eatSpace()) {
+            return 'space';
+            //return null;
+        }
+
+        var ch = stream.peek();
+
+        // Handle Comments
+        if (ch === "'") {
+            stream.skipToEnd();
+            return 'comment';
+        }
+        if (stream.match(comment)){
+            stream.skipToEnd();
+            return 'comment';
+        }
+
+
+        // Handle Number Literals
+        if (stream.match(/^((&H)|(&O))?[0-9\.]/i, false) && !stream.match(/^((&H)|(&O))?[0-9\.]+[a-z_]/i, false)) {
+            var floatLiteral = false;
+            // Floats
+            if (stream.match(/^\d*\.\d+/i)) { floatLiteral = true; }
+            else if (stream.match(/^\d+\.\d*/)) { floatLiteral = true; }
+            else if (stream.match(/^\.\d+/)) { floatLiteral = true; }
+
+            if (floatLiteral) {
+                // Float literals may be "imaginary"
+                stream.eat(/J/i);
+                return 'number';
+            }
+            // Integers
+            var intLiteral = false;
+            // Hex
+            if (stream.match(/^&H[0-9a-f]+/i)) { intLiteral = true; }
+            // Octal
+            else if (stream.match(/^&O[0-7]+/i)) { intLiteral = true; }
+            // Decimal
+            else if (stream.match(/^[1-9]\d*F?/)) {
+                // Decimal literals may be "imaginary"
+                stream.eat(/J/i);
+                // TODO - Can you have imaginary longs?
+                intLiteral = true;
+            }
+            // Zero by itself with no other piece of number.
+            else if (stream.match(/^0(?![\dx])/i)) { intLiteral = true; }
+            if (intLiteral) {
+                // Integer literals may be "long"
+                stream.eat(/L/i);
+                return 'number';
+            }
+        }
+
+        // Handle Strings
+        if (stream.match(stringPrefixes)) {
+            state.tokenize = tokenStringFactory(stream.current());
+            return state.tokenize(stream, state);
+        }
+
+        // Handle operators and Delimiters
+        if (stream.match(doubleOperators)
+            || stream.match(singleOperators)
+            || stream.match(wordOperators)) {
+            return 'operator';
+        }
+        if (stream.match(singleDelimiters)) {
+            return null;
+        }
+
+        if (stream.match(brakets)) {
+            return "bracket";
+        }
+
+        if (stream.match(noIndentWords)) {
+            state.doInCurrentLine = true;
+
+            return 'keyword';
+        }
+
+        if (stream.match(doOpening)) {
+            indent(stream,state);
+            state.doInCurrentLine = true;
+
+            return 'keyword';
+        }
+        if (stream.match(opening)) {
+            if (! state.doInCurrentLine)
+              indent(stream,state);
+            else
+              state.doInCurrentLine = false;
+
+            return 'keyword';
+        }
+        if (stream.match(middle)) {
+            return 'keyword';
+        }
+
+
+        if (stream.match(doubleClosing)) {
+            dedent(stream,state);
+            dedent(stream,state);
+
+            return 'keyword';
+        }
+        if (stream.match(closing)) {
+            if (! state.doInCurrentLine)
+              dedent(stream,state);
+            else
+              state.doInCurrentLine = false;
+
+            return 'keyword';
+        }
+
+        if (stream.match(keywords)) {
+            return 'keyword';
+        }
+
+        if (stream.match(atoms)) {
+            return 'atom';
+        }
+
+        if (stream.match(known)) {
+            return 'variable-2';
+        }
+
+        if (stream.match(builtinFuncs)) {
+            return 'builtin';
+        }
+
+        if (stream.match(builtinObjs)){
+            return 'variable-2';
+        }
+
+        if (stream.match(identifiers)) {
+            return 'variable';
+        }
+
+        // Handle non-detected items
+        stream.next();
+        return ERRORCLASS;
+    }
+
+    function tokenStringFactory(delimiter) {
+        var singleline = delimiter.length == 1;
+        var OUTCLASS = 'string';
+
+        return function(stream, state) {
+            while (!stream.eol()) {
+                stream.eatWhile(/[^'"]/);
+                if (stream.match(delimiter)) {
+                    state.tokenize = tokenBase;
+                    return OUTCLASS;
+                } else {
+                    stream.eat(/['"]/);
+                }
+            }
+            if (singleline) {
+                if (parserConf.singleLineStringErrors) {
+                    return ERRORCLASS;
+                } else {
+                    state.tokenize = tokenBase;
+                }
+            }
+            return OUTCLASS;
+        };
+    }
+
+
+    function tokenLexer(stream, state) {
+        var style = state.tokenize(stream, state);
+        var current = stream.current();
+
+        // Handle '.' connected identifiers
+        if (current === '.') {
+            style = state.tokenize(stream, state);
+
+            current = stream.current();
+            if (style && (style.substr(0, 8) === 'variable' || style==='builtin' || style==='keyword')){//|| knownWords.indexOf(current.substring(1)) > -1) {
+                if (style === 'builtin' || style === 'keyword') style='variable';
+                if (knownWords.indexOf(current.substr(1)) > -1) style='variable-2';
+
+                return style;
+            } else {
+                return ERRORCLASS;
+            }
+        }
+
+        return style;
+    }
+
+    var external = {
+        electricChars:"dDpPtTfFeE ",
+        startState: function() {
+            return {
+              tokenize: tokenBase,
+              lastToken: null,
+              currentIndent: 0,
+              nextLineIndent: 0,
+              doInCurrentLine: false,
+              ignoreKeyword: false
+
+
+          };
+        },
+
+        token: function(stream, state) {
+            if (stream.sol()) {
+              state.currentIndent += state.nextLineIndent;
+              state.nextLineIndent = 0;
+              state.doInCurrentLine = 0;
+            }
+            var style = tokenLexer(stream, state);
+
+            state.lastToken = {style:style, content: stream.current()};
+
+            if (style==='space') style=null;
+
+            return style;
+        },
+
+        indent: function(state, textAfter) {
+            var trueText = textAfter.replace(/^\s+|\s+$/g, '') ;
+            if (trueText.match(closing) || trueText.match(doubleClosing) || trueText.match(middle)) return conf.indentUnit*(state.currentIndent-1);
+            if(state.currentIndent < 0) return 0;
+            return state.currentIndent * conf.indentUnit;
+        }
+
+    };
+    return external;
+});
+
+CodeMirror.defineMIME("text/vbscript", "vbscript");
+
+});
diff --git a/public/codemirror/mode/velocity/index.html b/public/codemirror/mode/velocity/index.html
new file mode 100644
index 000000000..7eba8f418
--- /dev/null
+++ b/public/codemirror/mode/velocity/index.html
@@ -0,0 +1,120 @@
+
+
+CodeMirror: Velocity mode
+
+
+
+
+
+
+
+
+
+
+
    
+
    Velocity mode
    
+
    
+    
+
+    
    MIME types defined: text/velocity.
    
+
+  
    
diff --git a/public/codemirror/mode/velocity/velocity.js b/public/codemirror/mode/velocity/velocity.js
new file mode 100644
index 000000000..12ee22124
--- /dev/null
+++ b/public/codemirror/mode/velocity/velocity.js
@@ -0,0 +1,201 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("velocity", function() {
+    function parseWords(str) {
+        var obj = {}, words = str.split(" ");
+        for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+        return obj;
+    }
+
+    var keywords = parseWords("#end #else #break #stop #[[ #]] " +
+                              "#{end} #{else} #{break} #{stop}");
+    var functions = parseWords("#if #elseif #foreach #set #include #parse #macro #define #evaluate " +
+                               "#{if} #{elseif} #{foreach} #{set} #{include} #{parse} #{macro} #{define} #{evaluate}");
+    var specials = parseWords("$foreach.count $foreach.hasNext $foreach.first $foreach.last $foreach.topmost $foreach.parent.count $foreach.parent.hasNext $foreach.parent.first $foreach.parent.last $foreach.parent $velocityCount $!bodyContent $bodyContent");
+    var isOperatorChar = /[+\-*&%=<>!?:\/|]/;
+
+    function chain(stream, state, f) {
+        state.tokenize = f;
+        return f(stream, state);
+    }
+    function tokenBase(stream, state) {
+        var beforeParams = state.beforeParams;
+        state.beforeParams = false;
+        var ch = stream.next();
+        // start of unparsed string?
+        if ((ch == "'") && !state.inString && state.inParams) {
+            state.lastTokenWasBuiltin = false;
+            return chain(stream, state, tokenString(ch));
+        }
+        // start of parsed string?
+        else if ((ch == '"')) {
+            state.lastTokenWasBuiltin = false;
+            if (state.inString) {
+                state.inString = false;
+                return "string";
+            }
+            else if (state.inParams)
+                return chain(stream, state, tokenString(ch));
+        }
+        // is it one of the special signs []{}().,;? Seperator?
+        else if (/[\[\]{}\(\),;\.]/.test(ch)) {
+            if (ch == "(" && beforeParams)
+                state.inParams = true;
+            else if (ch == ")") {
+                state.inParams = false;
+                state.lastTokenWasBuiltin = true;
+            }
+            return null;
+        }
+        // start of a number value?
+        else if (/\d/.test(ch)) {
+            state.lastTokenWasBuiltin = false;
+            stream.eatWhile(/[\w\.]/);
+            return "number";
+        }
+        // multi line comment?
+        else if (ch == "#" && stream.eat("*")) {
+            state.lastTokenWasBuiltin = false;
+            return chain(stream, state, tokenComment);
+        }
+        // unparsed content?
+        else if (ch == "#" && stream.match(/ *\[ *\[/)) {
+            state.lastTokenWasBuiltin = false;
+            return chain(stream, state, tokenUnparsed);
+        }
+        // single line comment?
+        else if (ch == "#" && stream.eat("#")) {
+            state.lastTokenWasBuiltin = false;
+            stream.skipToEnd();
+            return "comment";
+        }
+        // variable?
+        else if (ch == "$") {
+            stream.eatWhile(/[\w\d\$_\.{}]/);
+            // is it one of the specials?
+            if (specials && specials.propertyIsEnumerable(stream.current())) {
+                return "keyword";
+            }
+            else {
+                state.lastTokenWasBuiltin = true;
+                state.beforeParams = true;
+                return "builtin";
+            }
+        }
+        // is it a operator?
+        else if (isOperatorChar.test(ch)) {
+            state.lastTokenWasBuiltin = false;
+            stream.eatWhile(isOperatorChar);
+            return "operator";
+        }
+        else {
+            // get the whole word
+            stream.eatWhile(/[\w\$_{}@]/);
+            var word = stream.current();
+            // is it one of the listed keywords?
+            if (keywords && keywords.propertyIsEnumerable(word))
+                return "keyword";
+            // is it one of the listed functions?
+            if (functions && functions.propertyIsEnumerable(word) ||
+                    (stream.current().match(/^#@?[a-z0-9_]+ *$/i) && stream.peek()=="(") &&
+                     !(functions && functions.propertyIsEnumerable(word.toLowerCase()))) {
+                state.beforeParams = true;
+                state.lastTokenWasBuiltin = false;
+                return "keyword";
+            }
+            if (state.inString) {
+                state.lastTokenWasBuiltin = false;
+                return "string";
+            }
+            if (stream.pos > word.length && stream.string.charAt(stream.pos-word.length-1)=="." && state.lastTokenWasBuiltin)
+                return "builtin";
+            // default: just a "word"
+            state.lastTokenWasBuiltin = false;
+            return null;
+        }
+    }
+
+    function tokenString(quote) {
+        return function(stream, state) {
+            var escaped = false, next, end = false;
+            while ((next = stream.next()) != null) {
+                if ((next == quote) && !escaped) {
+                    end = true;
+                    break;
+                }
+                if (quote=='"' && stream.peek() == '$' && !escaped) {
+                    state.inString = true;
+                    end = true;
+                    break;
+                }
+                escaped = !escaped && next == "\\";
+            }
+            if (end) state.tokenize = tokenBase;
+            return "string";
+        };
+    }
+
+    function tokenComment(stream, state) {
+        var maybeEnd = false, ch;
+        while (ch = stream.next()) {
+            if (ch == "#" && maybeEnd) {
+                state.tokenize = tokenBase;
+                break;
+            }
+            maybeEnd = (ch == "*");
+        }
+        return "comment";
+    }
+
+    function tokenUnparsed(stream, state) {
+        var maybeEnd = 0, ch;
+        while (ch = stream.next()) {
+            if (ch == "#" && maybeEnd == 2) {
+                state.tokenize = tokenBase;
+                break;
+            }
+            if (ch == "]")
+                maybeEnd++;
+            else if (ch != " ")
+                maybeEnd = 0;
+        }
+        return "meta";
+    }
+    // Interface
+
+    return {
+        startState: function() {
+            return {
+                tokenize: tokenBase,
+                beforeParams: false,
+                inParams: false,
+                inString: false,
+                lastTokenWasBuiltin: false
+            };
+        },
+
+        token: function(stream, state) {
+            if (stream.eatSpace()) return null;
+            return state.tokenize(stream, state);
+        },
+        blockCommentStart: "#*",
+        blockCommentEnd: "*#",
+        lineComment: "##",
+        fold: "velocity"
+    };
+});
+
+CodeMirror.defineMIME("text/velocity", "velocity");
+
+});
diff --git a/public/codemirror/mode/verilog/index.html b/public/codemirror/mode/verilog/index.html
new file mode 100644
index 000000000..9c52722af
--- /dev/null
+++ b/public/codemirror/mode/verilog/index.html
@@ -0,0 +1,120 @@
+
+
+CodeMirror: Verilog/SystemVerilog mode
+
+
+
+
+
+
+
+
+
+
+
    
+
    SystemVerilog mode
    
+
+
    
+
+
+
+
    
+Syntax highlighting and indentation for the Verilog and SystemVerilog languages (IEEE 1800).
+
    Configuration options:
    
+  
      
+    
    • noIndentKeywords - List of keywords which should not cause indentation to increase. E.g. ["package", "module"]. Default: None
      • 
+  
    
+
    
+
+
    MIME types defined: text/x-verilog and text/x-systemverilog.
    
+
    
diff --git a/public/codemirror/mode/verilog/test.js b/public/codemirror/mode/verilog/test.js
new file mode 100644
index 000000000..8334fab05
--- /dev/null
+++ b/public/codemirror/mode/verilog/test.js
@@ -0,0 +1,273 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({indentUnit: 4}, "verilog");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)); }
+
+  MT("binary_literals",
+     "[number 1'b0]",
+     "[number 1'b1]",
+     "[number 1'bx]",
+     "[number 1'bz]",
+     "[number 1'bX]",
+     "[number 1'bZ]",
+     "[number 1'B0]",
+     "[number 1'B1]",
+     "[number 1'Bx]",
+     "[number 1'Bz]",
+     "[number 1'BX]",
+     "[number 1'BZ]",
+     "[number 1'b0]",
+     "[number 1'b1]",
+     "[number 2'b01]",
+     "[number 2'bxz]",
+     "[number 2'b11]",
+     "[number 2'b10]",
+     "[number 2'b1Z]",
+     "[number 12'b0101_0101_0101]",
+     "[number 1'b 0]",
+     "[number 'b0101]"
+  );
+
+  MT("octal_literals",
+     "[number 3'o7]",
+     "[number 3'O7]",
+     "[number 3'so7]",
+     "[number 3'SO7]"
+  );
+
+  MT("decimal_literals",
+     "[number 0]",
+     "[number 1]",
+     "[number 7]",
+     "[number 123_456]",
+     "[number 'd33]",
+     "[number 8'd255]",
+     "[number 8'D255]",
+     "[number 8'sd255]",
+     "[number 8'SD255]",
+     "[number 32'd123]",
+     "[number 32 'd123]",
+     "[number 32 'd 123]"
+  );
+
+  MT("hex_literals",
+     "[number 4'h0]",
+     "[number 4'ha]",
+     "[number 4'hF]",
+     "[number 4'hx]",
+     "[number 4'hz]",
+     "[number 4'hX]",
+     "[number 4'hZ]",
+     "[number 32'hdc78]",
+     "[number 32'hDC78]",
+     "[number 32 'hDC78]",
+     "[number 32'h DC78]",
+     "[number 32 'h DC78]",
+     "[number 32'h44x7]",
+     "[number 32'hFFF?]"
+  );
+
+  MT("real_number_literals",
+     "[number 1.2]",
+     "[number 0.1]",
+     "[number 2394.26331]",
+     "[number 1.2E12]",
+     "[number 1.2e12]",
+     "[number 1.30e-2]",
+     "[number 0.1e-0]",
+     "[number 23E10]",
+     "[number 29E-2]",
+     "[number 236.123_763_e-12]"
+  );
+
+  MT("operators",
+     "[meta ^]"
+  );
+
+  MT("keywords",
+     "[keyword logic]",
+     "[keyword logic] [variable foo]",
+     "[keyword reg] [variable abc]"
+  );
+
+  MT("variables",
+     "[variable _leading_underscore]",
+     "[variable _if]",
+     "[number 12] [variable foo]",
+     "[variable foo] [number 14]"
+  );
+
+  MT("tick_defines",
+     "[def `FOO]",
+     "[def `foo]",
+     "[def `FOO_bar]"
+  );
+
+  MT("system_calls",
+     "[meta $display]",
+     "[meta $vpi_printf]"
+  );
+
+  MT("line_comment", "[comment // Hello world]");
+
+  // Alignment tests
+  MT("align_port_map_style1",
+     /**
+      * mod mod(.a(a),
+      *         .b(b)
+      *        );
+      */
+     "[variable mod] [variable mod][bracket (].[variable a][bracket (][variable a][bracket )],",
+     "        .[variable b][bracket (][variable b][bracket )]",
+     "       [bracket )];",
+     ""
+  );
+
+  MT("align_port_map_style2",
+     /**
+      * mod mod(
+      *     .a(a),
+      *     .b(b)
+      * );
+      */
+     "[variable mod] [variable mod][bracket (]",
+     "    .[variable a][bracket (][variable a][bracket )],",
+     "    .[variable b][bracket (][variable b][bracket )]",
+     "[bracket )];",
+     ""
+  );
+
+  // Indentation tests
+  MT("indent_single_statement_if",
+      "[keyword if] [bracket (][variable foo][bracket )]",
+      "    [keyword break];",
+      ""
+  );
+
+  MT("no_indent_after_single_line_if",
+      "[keyword if] [bracket (][variable foo][bracket )] [keyword break];",
+      ""
+  );
+
+  MT("indent_after_if_begin_same_line",
+      "[keyword if] [bracket (][variable foo][bracket )] [keyword begin]",
+      "    [keyword break];",
+      "    [keyword break];",
+      "[keyword end]",
+      ""
+  );
+
+  MT("indent_after_if_begin_next_line",
+      "[keyword if] [bracket (][variable foo][bracket )]",
+      "    [keyword begin]",
+      "        [keyword break];",
+      "        [keyword break];",
+      "    [keyword end]",
+      ""
+  );
+
+  MT("indent_single_statement_if_else",
+      "[keyword if] [bracket (][variable foo][bracket )]",
+      "    [keyword break];",
+      "[keyword else]",
+      "    [keyword break];",
+      ""
+  );
+
+  MT("indent_if_else_begin_same_line",
+      "[keyword if] [bracket (][variable foo][bracket )] [keyword begin]",
+      "    [keyword break];",
+      "    [keyword break];",
+      "[keyword end] [keyword else] [keyword begin]",
+      "    [keyword break];",
+      "    [keyword break];",
+      "[keyword end]",
+      ""
+  );
+
+  MT("indent_if_else_begin_next_line",
+      "[keyword if] [bracket (][variable foo][bracket )]",
+      "    [keyword begin]",
+      "        [keyword break];",
+      "        [keyword break];",
+      "    [keyword end]",
+      "[keyword else]",
+      "    [keyword begin]",
+      "        [keyword break];",
+      "        [keyword break];",
+      "    [keyword end]",
+      ""
+  );
+
+  MT("indent_if_nested_without_begin",
+      "[keyword if] [bracket (][variable foo][bracket )]",
+      "    [keyword if] [bracket (][variable foo][bracket )]",
+      "        [keyword if] [bracket (][variable foo][bracket )]",
+      "            [keyword break];",
+      ""
+  );
+
+  MT("indent_case",
+      "[keyword case] [bracket (][variable state][bracket )]",
+      "    [variable FOO]:",
+      "        [keyword break];",
+      "    [variable BAR]:",
+      "        [keyword break];",
+      "[keyword endcase]",
+      ""
+  );
+
+  MT("unindent_after_end_with_preceding_text",
+      "[keyword begin]",
+      "    [keyword break]; [keyword end]",
+      ""
+  );
+
+  MT("export_function_one_line_does_not_indent",
+     "[keyword export] [string \"DPI-C\"] [keyword function] [variable helloFromSV];",
+     ""
+  );
+
+  MT("export_task_one_line_does_not_indent",
+     "[keyword export] [string \"DPI-C\"] [keyword task] [variable helloFromSV];",
+     ""
+  );
+
+  MT("export_function_two_lines_indents_properly",
+    "[keyword export]",
+    "    [string \"DPI-C\"] [keyword function] [variable helloFromSV];",
+    ""
+  );
+
+  MT("export_task_two_lines_indents_properly",
+    "[keyword export]",
+    "    [string \"DPI-C\"] [keyword task] [variable helloFromSV];",
+    ""
+  );
+
+  MT("import_function_one_line_does_not_indent",
+    "[keyword import] [string \"DPI-C\"] [keyword function] [variable helloFromC];",
+    ""
+  );
+
+  MT("import_task_one_line_does_not_indent",
+    "[keyword import] [string \"DPI-C\"] [keyword task] [variable helloFromC];",
+    ""
+  );
+
+  MT("import_package_single_line_does_not_indent",
+    "[keyword import] [variable p]::[variable x];",
+    "[keyword import] [variable p]::[variable y];",
+    ""
+  );
+
+  MT("covergroup_with_function_indents_properly",
+    "[keyword covergroup] [variable cg] [keyword with] [keyword function] [variable sample][bracket (][keyword bit] [variable b][bracket )];",
+    "    [variable c] : [keyword coverpoint] [variable c];",
+    "[keyword endgroup]: [variable cg]",
+    ""
+  );
+
+})();
diff --git a/public/codemirror/mode/verilog/verilog.js b/public/codemirror/mode/verilog/verilog.js
new file mode 100644
index 000000000..460cdb3b1
--- /dev/null
+++ b/public/codemirror/mode/verilog/verilog.js
@@ -0,0 +1,675 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("verilog", function(config, parserConfig) {
+
+  var indentUnit = config.indentUnit,
+      statementIndentUnit = parserConfig.statementIndentUnit || indentUnit,
+      dontAlignCalls = parserConfig.dontAlignCalls,
+      noIndentKeywords = parserConfig.noIndentKeywords || [],
+      multiLineStrings = parserConfig.multiLineStrings,
+      hooks = parserConfig.hooks || {};
+
+  function words(str) {
+    var obj = {}, words = str.split(" ");
+    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+    return obj;
+  }
+
+  /**
+   * Keywords from IEEE 1800-2012
+   */
+  var keywords = words(
+    "accept_on alias always always_comb always_ff always_latch and assert assign assume automatic before begin bind " +
+    "bins binsof bit break buf bufif0 bufif1 byte case casex casez cell chandle checker class clocking cmos config " +
+    "const constraint context continue cover covergroup coverpoint cross deassign default defparam design disable " +
+    "dist do edge else end endcase endchecker endclass endclocking endconfig endfunction endgenerate endgroup " +
+    "endinterface endmodule endpackage endprimitive endprogram endproperty endspecify endsequence endtable endtask " +
+    "enum event eventually expect export extends extern final first_match for force foreach forever fork forkjoin " +
+    "function generate genvar global highz0 highz1 if iff ifnone ignore_bins illegal_bins implements implies import " +
+    "incdir include initial inout input inside instance int integer interconnect interface intersect join join_any " +
+    "join_none large let liblist library local localparam logic longint macromodule matches medium modport module " +
+    "nand negedge nettype new nexttime nmos nor noshowcancelled not notif0 notif1 null or output package packed " +
+    "parameter pmos posedge primitive priority program property protected pull0 pull1 pulldown pullup " +
+    "pulsestyle_ondetect pulsestyle_onevent pure rand randc randcase randsequence rcmos real realtime ref reg " +
+    "reject_on release repeat restrict return rnmos rpmos rtran rtranif0 rtranif1 s_always s_eventually s_nexttime " +
+    "s_until s_until_with scalared sequence shortint shortreal showcancelled signed small soft solve specify " +
+    "specparam static string strong strong0 strong1 struct super supply0 supply1 sync_accept_on sync_reject_on " +
+    "table tagged task this throughout time timeprecision timeunit tran tranif0 tranif1 tri tri0 tri1 triand trior " +
+    "trireg type typedef union unique unique0 unsigned until until_with untyped use uwire var vectored virtual void " +
+    "wait wait_order wand weak weak0 weak1 while wildcard wire with within wor xnor xor");
+
+  /** Operators from IEEE 1800-2012
+     unary_operator ::=
+       + | - | ! | ~ | & | ~& | | | ~| | ^ | ~^ | ^~
+     binary_operator ::=
+       + | - | * | / | % | == | != | === | !== | ==? | !=? | && | || | **
+       | < | <= | > | >= | & | | | ^ | ^~ | ~^ | >> | << | >>> | <<<
+       | -> | <->
+     inc_or_dec_operator ::= ++ | --
+     unary_module_path_operator ::=
+       ! | ~ | & | ~& | | | ~| | ^ | ~^ | ^~
+     binary_module_path_operator ::=
+       == | != | && | || | & | | | ^ | ^~ | ~^
+  */
+  var isOperatorChar = /[\+\-\*\/!~&|^%=?:]/;
+  var isBracketChar = /[\[\]{}()]/;
+
+  var unsignedNumber = /\d[0-9_]*/;
+  var decimalLiteral = /\d*\s*'s?d\s*\d[0-9_]*/i;
+  var binaryLiteral = /\d*\s*'s?b\s*[xz01][xz01_]*/i;
+  var octLiteral = /\d*\s*'s?o\s*[xz0-7][xz0-7_]*/i;
+  var hexLiteral = /\d*\s*'s?h\s*[0-9a-fxz?][0-9a-fxz?_]*/i;
+  var realLiteral = /(\d[\d_]*(\.\d[\d_]*)?E-?[\d_]+)|(\d[\d_]*\.\d[\d_]*)/i;
+
+  var closingBracketOrWord = /^((\w+)|[)}\]])/;
+  var closingBracket = /[)}\]]/;
+
+  var curPunc;
+  var curKeyword;
+
+  // Block openings which are closed by a matching keyword in the form of ("end" + keyword)
+  // E.g. "task" => "endtask"
+  var blockKeywords = words(
+    "case checker class clocking config function generate interface module package" +
+    "primitive program property specify sequence table task"
+  );
+
+  // Opening/closing pairs
+  var openClose = {};
+  for (var keyword in blockKeywords) {
+    openClose[keyword] = "end" + keyword;
+  }
+  openClose["begin"] = "end";
+  openClose["casex"] = "endcase";
+  openClose["casez"] = "endcase";
+  openClose["do"   ] = "while";
+  openClose["fork" ] = "join;join_any;join_none";
+  openClose["covergroup"] = "endgroup";
+
+  for (var i in noIndentKeywords) {
+    var keyword = noIndentKeywords[i];
+    if (openClose[keyword]) {
+      openClose[keyword] = undefined;
+    }
+  }
+
+  // Keywords which open statements that are ended with a semi-colon
+  var statementKeywords = words("always always_comb always_ff always_latch assert assign assume else export for foreach forever if import initial repeat while");
+
+  function tokenBase(stream, state) {
+    var ch = stream.peek(), style;
+    if (hooks[ch] && (style = hooks[ch](stream, state)) != false) return style;
+    if (hooks.tokenBase && (style = hooks.tokenBase(stream, state)) != false)
+      return style;
+
+    if (/[,;:\.]/.test(ch)) {
+      curPunc = stream.next();
+      return null;
+    }
+    if (isBracketChar.test(ch)) {
+      curPunc = stream.next();
+      return "bracket";
+    }
+    // Macros (tick-defines)
+    if (ch == '`') {
+      stream.next();
+      if (stream.eatWhile(/[\w\$_]/)) {
+        return "def";
+      } else {
+        return null;
+      }
+    }
+    // System calls
+    if (ch == '$') {
+      stream.next();
+      if (stream.eatWhile(/[\w\$_]/)) {
+        return "meta";
+      } else {
+        return null;
+      }
+    }
+    // Time literals
+    if (ch == '#') {
+      stream.next();
+      stream.eatWhile(/[\d_.]/);
+      return "def";
+    }
+    // Strings
+    if (ch == '"') {
+      stream.next();
+      state.tokenize = tokenString(ch);
+      return state.tokenize(stream, state);
+    }
+    // Comments
+    if (ch == "/") {
+      stream.next();
+      if (stream.eat("*")) {
+        state.tokenize = tokenComment;
+        return tokenComment(stream, state);
+      }
+      if (stream.eat("/")) {
+        stream.skipToEnd();
+        return "comment";
+      }
+      stream.backUp(1);
+    }
+
+    // Numeric literals
+    if (stream.match(realLiteral) ||
+        stream.match(decimalLiteral) ||
+        stream.match(binaryLiteral) ||
+        stream.match(octLiteral) ||
+        stream.match(hexLiteral) ||
+        stream.match(unsignedNumber) ||
+        stream.match(realLiteral)) {
+      return "number";
+    }
+
+    // Operators
+    if (stream.eatWhile(isOperatorChar)) {
+      return "meta";
+    }
+
+    // Keywords / plain variables
+    if (stream.eatWhile(/[\w\$_]/)) {
+      var cur = stream.current();
+      if (keywords[cur]) {
+        if (openClose[cur]) {
+          curPunc = "newblock";
+        }
+        if (statementKeywords[cur]) {
+          curPunc = "newstatement";
+        }
+        curKeyword = cur;
+        return "keyword";
+      }
+      return "variable";
+    }
+
+    stream.next();
+    return null;
+  }
+
+  function tokenString(quote) {
+    return function(stream, state) {
+      var escaped = false, next, end = false;
+      while ((next = stream.next()) != null) {
+        if (next == quote && !escaped) {end = true; break;}
+        escaped = !escaped && next == "\\";
+      }
+      if (end || !(escaped || multiLineStrings))
+        state.tokenize = tokenBase;
+      return "string";
+    };
+  }
+
+  function tokenComment(stream, state) {
+    var maybeEnd = false, ch;
+    while (ch = stream.next()) {
+      if (ch == "/" && maybeEnd) {
+        state.tokenize = tokenBase;
+        break;
+      }
+      maybeEnd = (ch == "*");
+    }
+    return "comment";
+  }
+
+  function Context(indented, column, type, align, prev) {
+    this.indented = indented;
+    this.column = column;
+    this.type = type;
+    this.align = align;
+    this.prev = prev;
+  }
+  function pushContext(state, col, type) {
+    var indent = state.indented;
+    var c = new Context(indent, col, type, null, state.context);
+    return state.context = c;
+  }
+  function popContext(state) {
+    var t = state.context.type;
+    if (t == ")" || t == "]" || t == "}") {
+      state.indented = state.context.indented;
+    }
+    return state.context = state.context.prev;
+  }
+
+  function isClosing(text, contextClosing) {
+    if (text == contextClosing) {
+      return true;
+    } else {
+      // contextClosing may be multiple keywords separated by ;
+      var closingKeywords = contextClosing.split(";");
+      for (var i in closingKeywords) {
+        if (text == closingKeywords[i]) {
+          return true;
+        }
+      }
+      return false;
+    }
+  }
+
+  function buildElectricInputRegEx() {
+    // Reindentation should occur on any bracket char: {}()[]
+    // or on a match of any of the block closing keywords, at
+    // the end of a line
+    var allClosings = [];
+    for (var i in openClose) {
+      if (openClose[i]) {
+        var closings = openClose[i].split(";");
+        for (var j in closings) {
+          allClosings.push(closings[j]);
+        }
+      }
+    }
+    var re = new RegExp("[{}()\\[\\]]|(" + allClosings.join("|") + ")$");
+    return re;
+  }
+
+  // Interface
+  return {
+
+    // Regex to force current line to reindent
+    electricInput: buildElectricInputRegEx(),
+
+    startState: function(basecolumn) {
+      var state = {
+        tokenize: null,
+        context: new Context((basecolumn || 0) - indentUnit, 0, "top", false),
+        indented: 0,
+        startOfLine: true
+      };
+      if (hooks.startState) hooks.startState(state);
+      return state;
+    },
+
+    token: function(stream, state) {
+      var ctx = state.context;
+      if (stream.sol()) {
+        if (ctx.align == null) ctx.align = false;
+        state.indented = stream.indentation();
+        state.startOfLine = true;
+      }
+      if (hooks.token) {
+        // Call hook, with an optional return value of a style to override verilog styling.
+        var style = hooks.token(stream, state);
+        if (style !== undefined) {
+          return style;
+        }
+      }
+      if (stream.eatSpace()) return null;
+      curPunc = null;
+      curKeyword = null;
+      var style = (state.tokenize || tokenBase)(stream, state);
+      if (style == "comment" || style == "meta" || style == "variable") return style;
+      if (ctx.align == null) ctx.align = true;
+
+      if (curPunc == ctx.type) {
+        popContext(state);
+      } else if ((curPunc == ";" && ctx.type == "statement") ||
+               (ctx.type && isClosing(curKeyword, ctx.type))) {
+        ctx = popContext(state);
+        while (ctx && ctx.type == "statement") ctx = popContext(state);
+      } else if (curPunc == "{") {
+        pushContext(state, stream.column(), "}");
+      } else if (curPunc == "[") {
+        pushContext(state, stream.column(), "]");
+      } else if (curPunc == "(") {
+        pushContext(state, stream.column(), ")");
+      } else if (ctx && ctx.type == "endcase" && curPunc == ":") {
+        pushContext(state, stream.column(), "statement");
+      } else if (curPunc == "newstatement") {
+        pushContext(state, stream.column(), "statement");
+      } else if (curPunc == "newblock") {
+        if (curKeyword == "function" && ctx && (ctx.type == "statement" || ctx.type == "endgroup")) {
+          // The 'function' keyword can appear in some other contexts where it actually does not
+          // indicate a function (import/export DPI and covergroup definitions).
+          // Do nothing in this case
+        } else if (curKeyword == "task" && ctx && ctx.type == "statement") {
+          // Same thing for task
+        } else {
+          var close = openClose[curKeyword];
+          pushContext(state, stream.column(), close);
+        }
+      }
+
+      state.startOfLine = false;
+      return style;
+    },
+
+    indent: function(state, textAfter) {
+      if (state.tokenize != tokenBase && state.tokenize != null) return CodeMirror.Pass;
+      if (hooks.indent) {
+        var fromHook = hooks.indent(state);
+        if (fromHook >= 0) return fromHook;
+      }
+      var ctx = state.context, firstChar = textAfter && textAfter.charAt(0);
+      if (ctx.type == "statement" && firstChar == "}") ctx = ctx.prev;
+      var closing = false;
+      var possibleClosing = textAfter.match(closingBracketOrWord);
+      if (possibleClosing)
+        closing = isClosing(possibleClosing[0], ctx.type);
+      if (ctx.type == "statement") return ctx.indented + (firstChar == "{" ? 0 : statementIndentUnit);
+      else if (closingBracket.test(ctx.type) && ctx.align && !dontAlignCalls) return ctx.column + (closing ? 0 : 1);
+      else if (ctx.type == ")" && !closing) return ctx.indented + statementIndentUnit;
+      else return ctx.indented + (closing ? 0 : indentUnit);
+    },
+
+    blockCommentStart: "/*",
+    blockCommentEnd: "*/",
+    lineComment: "//"
+  };
+});
+
+  CodeMirror.defineMIME("text/x-verilog", {
+    name: "verilog"
+  });
+
+  CodeMirror.defineMIME("text/x-systemverilog", {
+    name: "verilog"
+  });
+
+
+
+  // TL-Verilog mode.
+  // See tl-x.org for language spec.
+  // See the mode in action at makerchip.com.
+  // Contact: steve.hoover@redwoodeda.com
+
+  // TLV Identifier prefixes.
+  // Note that sign is not treated separately, so "+/-" versions of numeric identifiers
+  // are included.
+  var tlvIdentifierStyle = {
+    "|": "link",
+    ">": "property",  // Should condition this off for > TLV 1c.
+    "$": "variable",
+    "$$": "variable",
+    "?$": "qualifier",
+    "?*": "qualifier",
+    "-": "hr",
+    "/": "property",
+    "/-": "property",
+    "@": "variable-3",
+    "@-": "variable-3",
+    "@++": "variable-3",
+    "@+=": "variable-3",
+    "@+=-": "variable-3",
+    "@--": "variable-3",
+    "@-=": "variable-3",
+    "%+": "tag",
+    "%-": "tag",
+    "%": "tag",
+    ">>": "tag",
+    "<<": "tag",
+    "<>": "tag",
+    "#": "tag",  // Need to choose a style for this.
+    "^": "attribute",
+    "^^": "attribute",
+    "^!": "attribute",
+    "*": "variable-2",
+    "**": "variable-2",
+    "\\": "keyword",
+    "\"": "comment"
+  };
+
+  // Lines starting with these characters define scope (result in indentation).
+  var tlvScopePrefixChars = {
+    "/": "beh-hier",
+    ">": "beh-hier",
+    "-": "phys-hier",
+    "|": "pipe",
+    "?": "when",
+    "@": "stage",
+    "\\": "keyword"
+  };
+  var tlvIndentUnit = 3;
+  var tlvTrackStatements = false;
+  var tlvIdentMatch = /^([~!@#\$%\^&\*-\+=\?\/\\\|'"<>]+)([\d\w_]*)/;  // Matches an identifiere.
+  // Note that ':' is excluded, because of it's use in [:].
+  var tlvFirstLevelIndentMatch = /^[! ]  /;
+  var tlvLineIndentationMatch = /^[! ] */;
+  var tlvCommentMatch = /^\/[\/\*]/;
+
+
+  // Returns a style specific to the scope at the given indentation column.
+  // Type is one of: "indent", "scope-ident", "before-scope-ident".
+  function tlvScopeStyle(state, indentation, type) {
+    // Begin scope.
+    var depth = indentation / tlvIndentUnit;  // TODO: Pass this in instead.
+    return "tlv-" + state.tlvIndentationStyle[depth] + "-" + type;
+  }
+
+  // Return true if the next thing in the stream is an identifier with a mnemonic.
+  function tlvIdentNext(stream) {
+    var match;
+    return (match = stream.match(tlvIdentMatch, false)) && match[2].length > 0;
+  }
+
+  CodeMirror.defineMIME("text/x-tlv", {
+    name: "verilog",
+
+    hooks: {
+
+      electricInput: false,
+
+
+      // Return undefined for verilog tokenizing, or style for TLV token (null not used).
+      // Standard CM styles are used for most formatting, but some TL-Verilog-specific highlighting
+      // can be enabled with the definition of cm-tlv-* styles, including highlighting for:
+      //   - M4 tokens
+      //   - TLV scope indentation
+      //   - Statement delimitation (enabled by tlvTrackStatements)
+      token: function(stream, state) {
+        var style = undefined;
+        var match;  // Return value of pattern matches.
+
+        // Set highlighting mode based on code region (TLV or SV).
+        if (stream.sol() && ! state.tlvInBlockComment) {
+          // Process region.
+          if (stream.peek() == '\\') {
+            style = "def";
+            stream.skipToEnd();
+            if (stream.string.match(/\\SV/)) {
+              state.tlvCodeActive = false;
+            } else if (stream.string.match(/\\TLV/)){
+              state.tlvCodeActive = true;
+            }
+          }
+          // Correct indentation in the face of a line prefix char.
+          if (state.tlvCodeActive && stream.pos == 0 &&
+              (state.indented == 0) && (match = stream.match(tlvLineIndentationMatch, false))) {
+            state.indented = match[0].length;
+          }
+
+          // Compute indentation state:
+          //   o Auto indentation on next line
+          //   o Indentation scope styles
+          var indented = state.indented;
+          var depth = indented / tlvIndentUnit;
+          if (depth <= state.tlvIndentationStyle.length) {
+            // not deeper than current scope
+
+            var blankline = stream.string.length == indented;
+            var chPos = depth * tlvIndentUnit;
+            if (chPos < stream.string.length) {
+              var bodyString = stream.string.slice(chPos);
+              var ch = bodyString[0];
+              if (tlvScopePrefixChars[ch] && ((match = bodyString.match(tlvIdentMatch)) &&
+                  tlvIdentifierStyle[match[1]])) {
+                // This line begins scope.
+                // Next line gets indented one level.
+                indented += tlvIndentUnit;
+                // Style the next level of indentation (except non-region keyword identifiers,
+                //   which are statements themselves)
+                if (!(ch == "\\" && chPos > 0)) {
+                  state.tlvIndentationStyle[depth] = tlvScopePrefixChars[ch];
+                  if (tlvTrackStatements) {state.statementComment = false;}
+                  depth++;
+                }
+              }
+            }
+            // Clear out deeper indentation levels unless line is blank.
+            if (!blankline) {
+              while (state.tlvIndentationStyle.length > depth) {
+                state.tlvIndentationStyle.pop();
+              }
+            }
+          }
+          // Set next level of indentation.
+          state.tlvNextIndent = indented;
+        }
+
+        if (state.tlvCodeActive) {
+          // Highlight as TLV.
+
+          var beginStatement = false;
+          if (tlvTrackStatements) {
+            // This starts a statement if the position is at the scope level
+            // and we're not within a statement leading comment.
+            beginStatement =
+                   (stream.peek() != " ") &&   // not a space
+                   (style === undefined) &&    // not a region identifier
+                   !state.tlvInBlockComment && // not in block comment
+                   //!stream.match(tlvCommentMatch, false) && // not comment start
+                   (stream.column() == state.tlvIndentationStyle.length * tlvIndentUnit);  // at scope level
+            if (beginStatement) {
+              if (state.statementComment) {
+                // statement already started by comment
+                beginStatement = false;
+              }
+              state.statementComment =
+                   stream.match(tlvCommentMatch, false); // comment start
+            }
+          }
+
+          var match;
+          if (style !== undefined) {
+            // Region line.
+            style += " " + tlvScopeStyle(state, 0, "scope-ident")
+          } else if (((stream.pos / tlvIndentUnit) < state.tlvIndentationStyle.length) &&
+                     (match = stream.match(stream.sol() ? tlvFirstLevelIndentMatch : /^   /))) {
+            // Indentation
+            style = // make this style distinct from the previous one to prevent
+                    // codemirror from combining spans
+                    "tlv-indent-" + (((stream.pos % 2) == 0) ? "even" : "odd") +
+                    // and style it
+                    " " + tlvScopeStyle(state, stream.pos - tlvIndentUnit, "indent");
+            // Style the line prefix character.
+            if (match[0].charAt(0) == "!") {
+              style += " tlv-alert-line-prefix";
+            }
+            // Place a class before a scope identifier.
+            if (tlvIdentNext(stream)) {
+              style += " " + tlvScopeStyle(state, stream.pos, "before-scope-ident");
+            }
+          } else if (state.tlvInBlockComment) {
+            // In a block comment.
+            if (stream.match(/^.*?\*\//)) {
+              // Exit block comment.
+              state.tlvInBlockComment = false;
+              if (tlvTrackStatements && !stream.eol()) {
+                // Anything after comment is assumed to be real statement content.
+                state.statementComment = false;
+              }
+            } else {
+              stream.skipToEnd();
+            }
+            style = "comment";
+          } else if ((match = stream.match(tlvCommentMatch)) && !state.tlvInBlockComment) {
+            // Start comment.
+            if (match[0] == "//") {
+              // Line comment.
+              stream.skipToEnd();
+            } else {
+              // Block comment.
+              state.tlvInBlockComment = true;
+            }
+            style = "comment";
+          } else if (match = stream.match(tlvIdentMatch)) {
+            // looks like an identifier (or identifier prefix)
+            var prefix = match[1];
+            var mnemonic = match[2];
+            if (// is identifier prefix
+                (prefix in tlvIdentifierStyle) &&
+                // has mnemonic or we're at the end of the line (maybe it hasn't been typed yet)
+                (mnemonic.length > 0 || stream.eol())) {
+              style = tlvIdentifierStyle[prefix];
+              if (stream.column() == state.indented) {
+                // Begin scope.
+                style += " " + tlvScopeStyle(state, stream.column(), "scope-ident")
+              }
+            } else {
+              // Just swallow one character and try again.
+              // This enables subsequent identifier match with preceding symbol character, which
+              //   is legal within a statement.  (Eg, !$reset).  It also enables detection of
+              //   comment start with preceding symbols.
+              stream.backUp(stream.current().length - 1);
+              style = "tlv-default";
+            }
+          } else if (stream.match(/^\t+/)) {
+            // Highlight tabs, which are illegal.
+            style = "tlv-tab";
+          } else if (stream.match(/^[\[\]{}\(\);\:]+/)) {
+            // [:], (), {}, ;.
+            style = "meta";
+          } else if (match = stream.match(/^[mM]4([\+_])?[\w\d_]*/)) {
+            // m4 pre proc
+            style = (match[1] == "+") ? "tlv-m4-plus" : "tlv-m4";
+          } else if (stream.match(/^ +/)){
+            // Skip over spaces.
+            if (stream.eol()) {
+              // Trailing spaces.
+              style = "error";
+            } else {
+              // Non-trailing spaces.
+              style = "tlv-default";
+            }
+          } else if (stream.match(/^[\w\d_]+/)) {
+            // alpha-numeric token.
+            style = "number";
+          } else {
+            // Eat the next char w/ no formatting.
+            stream.next();
+            style = "tlv-default";
+          }
+          if (beginStatement) {
+            style += " tlv-statement";
+          }
+        } else {
+          if (stream.match(/^[mM]4([\w\d_]*)/)) {
+            // m4 pre proc
+            style = "tlv-m4";
+          }
+        }
+        return style;
+      },
+
+      indent: function(state) {
+        return (state.tlvCodeActive == true) ? state.tlvNextIndent : -1;
+      },
+
+      startState: function(state) {
+        state.tlvIndentationStyle = [];  // Styles to use for each level of indentation.
+        state.tlvCodeActive = true;  // True when we're in a TLV region (and at beginning of file).
+        state.tlvNextIndent = -1;    // The number of spaces to autoindent the next line if tlvCodeActive.
+        state.tlvInBlockComment = false;  // True inside /**/ comment.
+        if (tlvTrackStatements) {
+          state.statementComment = false;  // True inside a statement's header comment.
+        }
+      }
+
+    }
+  });
+});
diff --git a/public/codemirror/mode/vhdl/index.html b/public/codemirror/mode/vhdl/index.html
new file mode 100644
index 000000000..3051bc37e
--- /dev/null
+++ b/public/codemirror/mode/vhdl/index.html
@@ -0,0 +1,95 @@
+
+
+CodeMirror: VHDL mode
+
+
+
+
+
+
+
+
+
+
+
    
+
    VHDL mode
    
+
+
    
+
+
+
+
    
+Syntax highlighting and indentation for the VHDL language.
+
    Configuration options:
    
+  
      
+    
    • atoms - List of atom words. Default: "null"
      • 
+    
    • hooks - List of meta hooks. Default: ["`", "$"]
      • 
+    
    • multiLineStrings - Whether multi-line strings are accepted. Default: false
      • 
+  
    
+
    
+
+
    MIME types defined: text/x-vhdl.
    
+
    
diff --git a/public/codemirror/mode/vhdl/vhdl.js b/public/codemirror/mode/vhdl/vhdl.js
new file mode 100644
index 000000000..97e086e42
--- /dev/null
+++ b/public/codemirror/mode/vhdl/vhdl.js
@@ -0,0 +1,189 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// Originally written by Alf Nielsen, re-written by Michael Zhou
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+function words(str) {
+  var obj = {}, words = str.split(",");
+  for (var i = 0; i < words.length; ++i) {
+    var allCaps = words[i].toUpperCase();
+    var firstCap = words[i].charAt(0).toUpperCase() + words[i].slice(1);
+    obj[words[i]] = true;
+    obj[allCaps] = true;
+    obj[firstCap] = true;
+  }
+  return obj;
+}
+
+function metaHook(stream) {
+  stream.eatWhile(/[\w\$_]/);
+  return "meta";
+}
+
+CodeMirror.defineMode("vhdl", function(config, parserConfig) {
+  var indentUnit = config.indentUnit,
+      atoms = parserConfig.atoms || words("null"),
+      hooks = parserConfig.hooks || {"`": metaHook, "$": metaHook},
+      multiLineStrings = parserConfig.multiLineStrings;
+
+  var keywords = words("abs,access,after,alias,all,and,architecture,array,assert,attribute,begin,block," +
+      "body,buffer,bus,case,component,configuration,constant,disconnect,downto,else,elsif,end,end block,end case," +
+      "end component,end for,end generate,end if,end loop,end process,end record,end units,entity,exit,file,for," +
+      "function,generate,generic,generic map,group,guarded,if,impure,in,inertial,inout,is,label,library,linkage," +
+      "literal,loop,map,mod,nand,new,next,nor,null,of,on,open,or,others,out,package,package body,port,port map," +
+      "postponed,procedure,process,pure,range,record,register,reject,rem,report,return,rol,ror,select,severity,signal," +
+      "sla,sll,sra,srl,subtype,then,to,transport,type,unaffected,units,until,use,variable,wait,when,while,with,xnor,xor");
+
+  var blockKeywords = words("architecture,entity,begin,case,port,else,elsif,end,for,function,if");
+
+  var isOperatorChar = /[&|~>
+
+CodeMirror: Vue.js mode
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
    
+
    Vue.js mode
    
+
    
+    
+
+    
    MIME types defined: text/x-vue
    
+
+  
    
diff --git a/public/codemirror/mode/vue/vue.js b/public/codemirror/mode/vue/vue.js
new file mode 100644
index 000000000..c0eab6b82
--- /dev/null
+++ b/public/codemirror/mode/vue/vue.js
@@ -0,0 +1,70 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function (mod) {
+  "use strict";
+  if (typeof exports === "object" && typeof module === "object") {// CommonJS
+    mod(require("../../lib/codemirror"),
+        require("../../addon/mode/overlay"),
+        require("../xml/xml"),
+        require("../javascript/javascript"),
+        require("../coffeescript/coffeescript"),
+        require("../css/css"),
+        require("../sass/sass"),
+        require("../stylus/stylus"),
+        require("../pug/pug"),
+        require("../handlebars/handlebars"));
+  } else if (typeof define === "function" && define.amd) { // AMD
+    define(["../../lib/codemirror",
+            "../../addon/mode/overlay",
+            "../xml/xml",
+            "../javascript/javascript",
+            "../coffeescript/coffeescript",
+            "../css/css",
+            "../sass/sass",
+            "../stylus/stylus",
+            "../pug/pug",
+            "../handlebars/handlebars"], mod);
+  } else { // Plain browser env
+    mod(CodeMirror);
+  }
+})(function (CodeMirror) {
+  var tagLanguages = {
+    script: [
+      ["lang", /coffee(script)?/, "coffeescript"],
+      ["type", /^(?:text|application)\/(?:x-)?coffee(?:script)?$/, "coffeescript"]
+    ],
+    style: [
+      ["lang", /^stylus$/i, "stylus"],
+      ["lang", /^sass$/i, "sass"],
+      ["type", /^(text\/)?(x-)?styl(us)?$/i, "stylus"],
+      ["type", /^text\/sass/i, "sass"]
+    ],
+    template: [
+      ["lang", /^vue-template$/i, "vue"],
+      ["lang", /^pug$/i, "pug"],
+      ["lang", /^handlebars$/i, "handlebars"],
+      ["type", /^(text\/)?(x-)?pug$/i, "pug"],
+      ["type", /^text\/x-handlebars-template$/i, "handlebars"],
+      [null, null, "vue-template"]
+    ]
+  };
+
+  CodeMirror.defineMode("vue-template", function (config, parserConfig) {
+    var mustacheOverlay = {
+      token: function (stream) {
+        if (stream.match(/^\{\{.*?\}\}/)) return "meta mustache";
+        while (stream.next() && !stream.match("{{", false)) {}
+        return null;
+      }
+    };
+    return CodeMirror.overlayMode(CodeMirror.getMode(config, parserConfig.backdrop || "text/html"), mustacheOverlay);
+  });
+
+  CodeMirror.defineMode("vue", function (config) {
+    return CodeMirror.getMode(config, {name: "htmlmixed", tags: tagLanguages});
+  }, "htmlmixed", "xml", "javascript", "coffeescript", "css", "sass", "stylus", "pug", "handlebars");
+
+  CodeMirror.defineMIME("script/x-vue", "vue");
+  CodeMirror.defineMIME("text/x-vue", "vue");
+});
diff --git a/public/codemirror/mode/webidl/index.html b/public/codemirror/mode/webidl/index.html
new file mode 100644
index 000000000..1d4112e1c
--- /dev/null
+++ b/public/codemirror/mode/webidl/index.html
@@ -0,0 +1,71 @@
+
+
+CodeMirror: Web IDL mode
+
+
+
+
+
+
+
+
+
+
+
    
+  
    Web IDL mode
    
+
+  
    
+
+  
    
+
+  
+
+  
    MIME type defined: text/x-webidl.
    
+
    
diff --git a/public/codemirror/mode/webidl/webidl.js b/public/codemirror/mode/webidl/webidl.js
new file mode 100644
index 000000000..814333620
--- /dev/null
+++ b/public/codemirror/mode/webidl/webidl.js
@@ -0,0 +1,195 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+function wordRegexp(words) {
+  return new RegExp("^((" + words.join(")|(") + "))\\b");
+};
+
+var builtinArray = [
+  "Clamp",
+  "Constructor",
+  "EnforceRange",
+  "Exposed",
+  "ImplicitThis",
+  "Global", "PrimaryGlobal",
+  "LegacyArrayClass",
+  "LegacyUnenumerableNamedProperties",
+  "LenientThis",
+  "NamedConstructor",
+  "NewObject",
+  "NoInterfaceObject",
+  "OverrideBuiltins",
+  "PutForwards",
+  "Replaceable",
+  "SameObject",
+  "TreatNonObjectAsNull",
+  "TreatNullAs",
+    "EmptyString",
+  "Unforgeable",
+  "Unscopeable"
+];
+var builtins = wordRegexp(builtinArray);
+
+var typeArray = [
+  "unsigned", "short", "long",                  // UnsignedIntegerType
+  "unrestricted", "float", "double",            // UnrestrictedFloatType
+  "boolean", "byte", "octet",                   // Rest of PrimitiveType
+  "Promise",                                    // PromiseType
+  "ArrayBuffer", "DataView", "Int8Array", "Int16Array", "Int32Array",
+  "Uint8Array", "Uint16Array", "Uint32Array", "Uint8ClampedArray",
+  "Float32Array", "Float64Array",               // BufferRelatedType
+  "ByteString", "DOMString", "USVString", "sequence", "object", "RegExp",
+  "Error", "DOMException", "FrozenArray",       // Rest of NonAnyType
+  "any",                                        // Rest of SingleType
+  "void"                                        // Rest of ReturnType
+];
+var types = wordRegexp(typeArray);
+
+var keywordArray = [
+  "attribute", "callback", "const", "deleter", "dictionary", "enum", "getter",
+  "implements", "inherit", "interface", "iterable", "legacycaller", "maplike",
+  "partial", "required", "serializer", "setlike", "setter", "static",
+  "stringifier", "typedef",                     // ArgumentNameKeyword except
+                                                // "unrestricted"
+  "optional", "readonly", "or"
+];
+var keywords = wordRegexp(keywordArray);
+
+var atomArray = [
+  "true", "false",                              // BooleanLiteral
+  "Infinity", "NaN",                            // FloatLiteral
+  "null"                                        // Rest of ConstValue
+];
+var atoms = wordRegexp(atomArray);
+
+CodeMirror.registerHelper("hintWords", "webidl",
+    builtinArray.concat(typeArray).concat(keywordArray).concat(atomArray));
+
+var startDefArray = ["callback", "dictionary", "enum", "interface"];
+var startDefs = wordRegexp(startDefArray);
+
+var endDefArray = ["typedef"];
+var endDefs = wordRegexp(endDefArray);
+
+var singleOperators = /^[:<=>?]/;
+var integers = /^-?([1-9][0-9]*|0[Xx][0-9A-Fa-f]+|0[0-7]*)/;
+var floats = /^-?(([0-9]+\.[0-9]*|[0-9]*\.[0-9]+)([Ee][+-]?[0-9]+)?|[0-9]+[Ee][+-]?[0-9]+)/;
+var identifiers = /^_?[A-Za-z][0-9A-Z_a-z-]*/;
+var identifiersEnd = /^_?[A-Za-z][0-9A-Z_a-z-]*(?=\s*;)/;
+var strings = /^"[^"]*"/;
+var multilineComments = /^\/\*.*?\*\//;
+var multilineCommentsStart = /^\/\*.*/;
+var multilineCommentsEnd = /^.*?\*\//;
+
+function readToken(stream, state) {
+  // whitespace
+  if (stream.eatSpace()) return null;
+
+  // comment
+  if (state.inComment) {
+    if (stream.match(multilineCommentsEnd)) {
+      state.inComment = false;
+      return "comment";
+    }
+    stream.skipToEnd();
+    return "comment";
+  }
+  if (stream.match("//")) {
+    stream.skipToEnd();
+    return "comment";
+  }
+  if (stream.match(multilineComments)) return "comment";
+  if (stream.match(multilineCommentsStart)) {
+    state.inComment = true;
+    return "comment";
+  }
+
+  // integer and float
+  if (stream.match(/^-?[0-9\.]/, false)) {
+    if (stream.match(integers) || stream.match(floats)) return "number";
+  }
+
+  // string
+  if (stream.match(strings)) return "string";
+
+  // identifier
+  if (state.startDef && stream.match(identifiers)) return "def";
+
+  if (state.endDef && stream.match(identifiersEnd)) {
+    state.endDef = false;
+    return "def";
+  }
+
+  if (stream.match(keywords)) return "keyword";
+
+  if (stream.match(types)) {
+    var lastToken = state.lastToken;
+    var nextToken = (stream.match(/^\s*(.+?)\b/, false) || [])[1];
+
+    if (lastToken === ":" || lastToken === "implements" ||
+        nextToken === "implements" || nextToken === "=") {
+      // Used as identifier
+      return "builtin";
+    } else {
+      // Used as type
+      return "variable-3";
+    }
+  }
+
+  if (stream.match(builtins)) return "builtin";
+  if (stream.match(atoms)) return "atom";
+  if (stream.match(identifiers)) return "variable";
+
+  // other
+  if (stream.match(singleOperators)) return "operator";
+
+  // unrecognized
+  stream.next();
+  return null;
+};
+
+CodeMirror.defineMode("webidl", function() {
+  return {
+    startState: function() {
+      return {
+        // Is in multiline comment
+        inComment: false,
+        // Last non-whitespace, matched token
+        lastToken: "",
+        // Next token is a definition
+        startDef: false,
+        // Last token of the statement is a definition
+        endDef: false
+      };
+    },
+    token: function(stream, state) {
+      var style = readToken(stream, state);
+
+      if (style) {
+        var cur = stream.current();
+        state.lastToken = cur;
+        if (style === "keyword") {
+          state.startDef = startDefs.test(cur);
+          state.endDef = state.endDef || endDefs.test(cur);
+        } else {
+          state.startDef = false;
+        }
+      }
+
+      return style;
+    }
+  };
+});
+
+CodeMirror.defineMIME("text/x-webidl", "webidl");
+});
diff --git a/public/codemirror/mode/xml/index.html b/public/codemirror/mode/xml/index.html
new file mode 100644
index 000000000..c56b8b6eb
--- /dev/null
+++ b/public/codemirror/mode/xml/index.html
@@ -0,0 +1,61 @@
+
+
+CodeMirror: XML mode
+
+
+
+
+
+
+
+
+
+
    
+
    XML mode
    
+
    
+    
+    
    The XML mode supports these configuration parameters:
    
+    
    
+      
    htmlMode (boolean)
    
+      
    This switches the mode to parse HTML instead of XML. This
+      means attributes do not have to be quoted, and some elements
+      (such as br) do not require a closing tag.
    
+      
    matchClosing (boolean)
    
+      
    Controls whether the mode checks that close tags match the
+      corresponding opening tag, and highlights mismatches as errors.
+      Defaults to true.
    
+      
    alignCDATA (boolean)
    
+      
    Setting this to true will force the opening tag of CDATA
+      blocks to not be indented.
    
+    
    
+
+    
    MIME types defined: application/xml, text/html.
    
+  
    
diff --git a/public/codemirror/mode/xml/test.js b/public/codemirror/mode/xml/test.js
new file mode 100644
index 000000000..f48156b51
--- /dev/null
+++ b/public/codemirror/mode/xml/test.js
@@ -0,0 +1,51 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var mode = CodeMirror.getMode({indentUnit: 2}, "xml"), mname = "xml";
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1), mname); }
+
+  MT("matching",
+     "[tag&bracket <][tag top][tag&bracket >]",
+     "  text",
+     "  [tag&bracket <][tag inner][tag&bracket />]",
+     "[tag&bracket ]");
+
+  MT("nonmatching",
+     "[tag&bracket <][tag top][tag&bracket >]",
+     "  [tag&bracket <][tag inner][tag&bracket />]",
+     "  [tag&bracket ]");
+
+  MT("doctype",
+     "[meta ]",
+     "[tag&bracket <][tag top][tag&bracket />]");
+
+  MT("cdata",
+     "[tag&bracket <][tag top][tag&bracket >]",
+     "  [atom ]",
+     "[tag&bracket ]");
+
+  // HTML tests
+  mode = CodeMirror.getMode({indentUnit: 2}, "text/html");
+
+  MT("selfclose",
+     "[tag&bracket <][tag html][tag&bracket >]",
+     "  [tag&bracket <][tag link] [attribute rel]=[string stylesheet] [attribute href]=[string \"/foobar\"][tag&bracket >]",
+     "[tag&bracket ]");
+
+  MT("list",
+     "[tag&bracket <][tag ol][tag&bracket >]",
+     "  [tag&bracket <][tag li][tag&bracket >]one",
+     "  [tag&bracket <][tag li][tag&bracket >]two",
+     "[tag&bracket ]");
+
+  MT("valueless",
+     "[tag&bracket <][tag input] [attribute type]=[string checkbox] [attribute checked][tag&bracket />]");
+
+  MT("pThenArticle",
+     "[tag&bracket <][tag p][tag&bracket >]",
+     "  foo",
+     "[tag&bracket <][tag article][tag&bracket >]bar");
+
+})();
diff --git a/public/codemirror/mode/xml/xml.js b/public/codemirror/mode/xml/xml.js
new file mode 100644
index 000000000..f987a3a3c
--- /dev/null
+++ b/public/codemirror/mode/xml/xml.js
@@ -0,0 +1,394 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+var htmlConfig = {
+  autoSelfClosers: {'area': true, 'base': true, 'br': true, 'col': true, 'command': true,
+                    'embed': true, 'frame': true, 'hr': true, 'img': true, 'input': true,
+                    'keygen': true, 'link': true, 'meta': true, 'param': true, 'source': true,
+                    'track': true, 'wbr': true, 'menuitem': true},
+  implicitlyClosed: {'dd': true, 'li': true, 'optgroup': true, 'option': true, 'p': true,
+                     'rp': true, 'rt': true, 'tbody': true, 'td': true, 'tfoot': true,
+                     'th': true, 'tr': true},
+  contextGrabbers: {
+    'dd': {'dd': true, 'dt': true},
+    'dt': {'dd': true, 'dt': true},
+    'li': {'li': true},
+    'option': {'option': true, 'optgroup': true},
+    'optgroup': {'optgroup': true},
+    'p': {'address': true, 'article': true, 'aside': true, 'blockquote': true, 'dir': true,
+          'div': true, 'dl': true, 'fieldset': true, 'footer': true, 'form': true,
+          'h1': true, 'h2': true, 'h3': true, 'h4': true, 'h5': true, 'h6': true,
+          'header': true, 'hgroup': true, 'hr': true, 'menu': true, 'nav': true, 'ol': true,
+          'p': true, 'pre': true, 'section': true, 'table': true, 'ul': true},
+    'rp': {'rp': true, 'rt': true},
+    'rt': {'rp': true, 'rt': true},
+    'tbody': {'tbody': true, 'tfoot': true},
+    'td': {'td': true, 'th': true},
+    'tfoot': {'tbody': true},
+    'th': {'td': true, 'th': true},
+    'thead': {'tbody': true, 'tfoot': true},
+    'tr': {'tr': true}
+  },
+  doNotIndent: {"pre": true},
+  allowUnquoted: true,
+  allowMissing: true,
+  caseFold: true
+}
+
+var xmlConfig = {
+  autoSelfClosers: {},
+  implicitlyClosed: {},
+  contextGrabbers: {},
+  doNotIndent: {},
+  allowUnquoted: false,
+  allowMissing: false,
+  caseFold: false
+}
+
+CodeMirror.defineMode("xml", function(editorConf, config_) {
+  var indentUnit = editorConf.indentUnit
+  var config = {}
+  var defaults = config_.htmlMode ? htmlConfig : xmlConfig
+  for (var prop in defaults) config[prop] = defaults[prop]
+  for (var prop in config_) config[prop] = config_[prop]
+
+  // Return variables for tokenizers
+  var type, setStyle;
+
+  function inText(stream, state) {
+    function chain(parser) {
+      state.tokenize = parser;
+      return parser(stream, state);
+    }
+
+    var ch = stream.next();
+    if (ch == "<") {
+      if (stream.eat("!")) {
+        if (stream.eat("[")) {
+          if (stream.match("CDATA[")) return chain(inBlock("atom", "]]>"));
+          else return null;
+        } else if (stream.match("--")) {
+          return chain(inBlock("comment", "-->"));
+        } else if (stream.match("DOCTYPE", true, true)) {
+          stream.eatWhile(/[\w\._\-]/);
+          return chain(doctype(1));
+        } else {
+          return null;
+        }
+      } else if (stream.eat("?")) {
+        stream.eatWhile(/[\w\._\-]/);
+        state.tokenize = inBlock("meta", "?>");
+        return "meta";
+      } else {
+        type = stream.eat("/") ? "closeTag" : "openTag";
+        state.tokenize = inTag;
+        return "tag bracket";
+      }
+    } else if (ch == "&") {
+      var ok;
+      if (stream.eat("#")) {
+        if (stream.eat("x")) {
+          ok = stream.eatWhile(/[a-fA-F\d]/) && stream.eat(";");
+        } else {
+          ok = stream.eatWhile(/[\d]/) && stream.eat(";");
+        }
+      } else {
+        ok = stream.eatWhile(/[\w\.\-:]/) && stream.eat(";");
+      }
+      return ok ? "atom" : "error";
+    } else {
+      stream.eatWhile(/[^&<]/);
+      return null;
+    }
+  }
+  inText.isInText = true;
+
+  function inTag(stream, state) {
+    var ch = stream.next();
+    if (ch == ">" || (ch == "/" && stream.eat(">"))) {
+      state.tokenize = inText;
+      type = ch == ">" ? "endTag" : "selfcloseTag";
+      return "tag bracket";
+    } else if (ch == "=") {
+      type = "equals";
+      return null;
+    } else if (ch == "<") {
+      state.tokenize = inText;
+      state.state = baseState;
+      state.tagName = state.tagStart = null;
+      var next = state.tokenize(stream, state);
+      return next ? next + " tag error" : "tag error";
+    } else if (/[\'\"]/.test(ch)) {
+      state.tokenize = inAttribute(ch);
+      state.stringStartCol = stream.column();
+      return state.tokenize(stream, state);
+    } else {
+      stream.match(/^[^\s\u00a0=<>\"\']*[^\s\u00a0=<>\"\'\/]/);
+      return "word";
+    }
+  }
+
+  function inAttribute(quote) {
+    var closure = function(stream, state) {
+      while (!stream.eol()) {
+        if (stream.next() == quote) {
+          state.tokenize = inTag;
+          break;
+        }
+      }
+      return "string";
+    };
+    closure.isInAttribute = true;
+    return closure;
+  }
+
+  function inBlock(style, terminator) {
+    return function(stream, state) {
+      while (!stream.eol()) {
+        if (stream.match(terminator)) {
+          state.tokenize = inText;
+          break;
+        }
+        stream.next();
+      }
+      return style;
+    };
+  }
+  function doctype(depth) {
+    return function(stream, state) {
+      var ch;
+      while ((ch = stream.next()) != null) {
+        if (ch == "<") {
+          state.tokenize = doctype(depth + 1);
+          return state.tokenize(stream, state);
+        } else if (ch == ">") {
+          if (depth == 1) {
+            state.tokenize = inText;
+            break;
+          } else {
+            state.tokenize = doctype(depth - 1);
+            return state.tokenize(stream, state);
+          }
+        }
+      }
+      return "meta";
+    };
+  }
+
+  function Context(state, tagName, startOfLine) {
+    this.prev = state.context;
+    this.tagName = tagName;
+    this.indent = state.indented;
+    this.startOfLine = startOfLine;
+    if (config.doNotIndent.hasOwnProperty(tagName) || (state.context && state.context.noIndent))
+      this.noIndent = true;
+  }
+  function popContext(state) {
+    if (state.context) state.context = state.context.prev;
+  }
+  function maybePopContext(state, nextTagName) {
+    var parentTagName;
+    while (true) {
+      if (!state.context) {
+        return;
+      }
+      parentTagName = state.context.tagName;
+      if (!config.contextGrabbers.hasOwnProperty(parentTagName) ||
+          !config.contextGrabbers[parentTagName].hasOwnProperty(nextTagName)) {
+        return;
+      }
+      popContext(state);
+    }
+  }
+
+  function baseState(type, stream, state) {
+    if (type == "openTag") {
+      state.tagStart = stream.column();
+      return tagNameState;
+    } else if (type == "closeTag") {
+      return closeTagNameState;
+    } else {
+      return baseState;
+    }
+  }
+  function tagNameState(type, stream, state) {
+    if (type == "word") {
+      state.tagName = stream.current();
+      setStyle = "tag";
+      return attrState;
+    } else {
+      setStyle = "error";
+      return tagNameState;
+    }
+  }
+  function closeTagNameState(type, stream, state) {
+    if (type == "word") {
+      var tagName = stream.current();
+      if (state.context && state.context.tagName != tagName &&
+          config.implicitlyClosed.hasOwnProperty(state.context.tagName))
+        popContext(state);
+      if ((state.context && state.context.tagName == tagName) || config.matchClosing === false) {
+        setStyle = "tag";
+        return closeState;
+      } else {
+        setStyle = "tag error";
+        return closeStateErr;
+      }
+    } else {
+      setStyle = "error";
+      return closeStateErr;
+    }
+  }
+
+  function closeState(type, _stream, state) {
+    if (type != "endTag") {
+      setStyle = "error";
+      return closeState;
+    }
+    popContext(state);
+    return baseState;
+  }
+  function closeStateErr(type, stream, state) {
+    setStyle = "error";
+    return closeState(type, stream, state);
+  }
+
+  function attrState(type, _stream, state) {
+    if (type == "word") {
+      setStyle = "attribute";
+      return attrEqState;
+    } else if (type == "endTag" || type == "selfcloseTag") {
+      var tagName = state.tagName, tagStart = state.tagStart;
+      state.tagName = state.tagStart = null;
+      if (type == "selfcloseTag" ||
+          config.autoSelfClosers.hasOwnProperty(tagName)) {
+        maybePopContext(state, tagName);
+      } else {
+        maybePopContext(state, tagName);
+        state.context = new Context(state, tagName, tagStart == state.indented);
+      }
+      return baseState;
+    }
+    setStyle = "error";
+    return attrState;
+  }
+  function attrEqState(type, stream, state) {
+    if (type == "equals") return attrValueState;
+    if (!config.allowMissing) setStyle = "error";
+    return attrState(type, stream, state);
+  }
+  function attrValueState(type, stream, state) {
+    if (type == "string") return attrContinuedState;
+    if (type == "word" && config.allowUnquoted) {setStyle = "string"; return attrState;}
+    setStyle = "error";
+    return attrState(type, stream, state);
+  }
+  function attrContinuedState(type, stream, state) {
+    if (type == "string") return attrContinuedState;
+    return attrState(type, stream, state);
+  }
+
+  return {
+    startState: function(baseIndent) {
+      var state = {tokenize: inText,
+                   state: baseState,
+                   indented: baseIndent || 0,
+                   tagName: null, tagStart: null,
+                   context: null}
+      if (baseIndent != null) state.baseIndent = baseIndent
+      return state
+    },
+
+    token: function(stream, state) {
+      if (!state.tagName && stream.sol())
+        state.indented = stream.indentation();
+
+      if (stream.eatSpace()) return null;
+      type = null;
+      var style = state.tokenize(stream, state);
+      if ((style || type) && style != "comment") {
+        setStyle = null;
+        state.state = state.state(type || style, stream, state);
+        if (setStyle)
+          style = setStyle == "error" ? style + " error" : setStyle;
+      }
+      return style;
+    },
+
+    indent: function(state, textAfter, fullLine) {
+      var context = state.context;
+      // Indent multi-line strings (e.g. css).
+      if (state.tokenize.isInAttribute) {
+        if (state.tagStart == state.indented)
+          return state.stringStartCol + 1;
+        else
+          return state.indented + indentUnit;
+      }
+      if (context && context.noIndent) return CodeMirror.Pass;
+      if (state.tokenize != inTag && state.tokenize != inText)
+        return fullLine ? fullLine.match(/^(\s*)/)[0].length : 0;
+      // Indent the starts of attribute names.
+      if (state.tagName) {
+        if (config.multilineTagIndentPastTag !== false)
+          return state.tagStart + state.tagName.length + 2;
+        else
+          return state.tagStart + indentUnit * (config.multilineTagIndentFactor || 1);
+      }
+      if (config.alignCDATA && /$/,
+    blockCommentStart: "",
+
+    configuration: config.htmlMode ? "html" : "xml",
+    helperType: config.htmlMode ? "html" : "xml",
+
+    skipAttribute: function(state) {
+      if (state.state == attrValueState)
+        state.state = attrState
+    }
+  };
+});
+
+CodeMirror.defineMIME("text/xml", "xml");
+CodeMirror.defineMIME("application/xml", "xml");
+if (!CodeMirror.mimeModes.hasOwnProperty("text/html"))
+  CodeMirror.defineMIME("text/html", {name: "xml", htmlMode: true});
+
+});
diff --git a/public/codemirror/mode/xquery/index.html b/public/codemirror/mode/xquery/index.html
new file mode 100644
index 000000000..7ac5aaeff
--- /dev/null
+++ b/public/codemirror/mode/xquery/index.html
@@ -0,0 +1,210 @@
+
+
+CodeMirror: XQuery mode
+
+
+
+
+
+
+
+
+
+
+
    
+
    XQuery mode
    
+ 
+ 
+
     
+	 
+
     
+ 
+     
+ 
+    
    MIME types defined: application/xquery.
     
+ 
+    
    Development of the CodeMirror XQuery mode was sponsored by 
+      MarkLogic and developed by 
+      Mike Brevoort.
+    
    
+ 
+  
    
diff --git a/public/codemirror/mode/xquery/test.js b/public/codemirror/mode/xquery/test.js
new file mode 100644
index 000000000..1f148cdbb
--- /dev/null
+++ b/public/codemirror/mode/xquery/test.js
@@ -0,0 +1,67 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// Don't take these too seriously -- the expected results appear to be
+// based on the results of actual runs without any serious manual
+// verification. If a change you made causes them to fail, the test is
+// as likely to wrong as the code.
+
+(function() {
+  var mode = CodeMirror.getMode({tabSize: 4}, "xquery");
+  function MT(name) { test.mode(name, mode, Array.prototype.slice.call(arguments, 1)); }
+
+  MT("eviltest",
+     "[keyword xquery] [keyword version] [variable "1][keyword .][atom 0][keyword -][variable ml"][def&variable ;]      [comment (: this is       : a          \"comment\" :)]",
+     "      [keyword let] [variable $let] [keyword :=] [variable <x] [variable attr][keyword =][variable "value">"test"<func>][def&variable ;function]() [variable $var] {[keyword function]()} {[variable $var]}[variable <][keyword /][variable func><][keyword /][variable x>]",
+     "      [keyword let] [variable $joe][keyword :=][atom 1]",
+     "      [keyword return] [keyword element] [variable element] {",
+     "          [keyword attribute] [variable attribute] { [atom 1] },",
+     "          [keyword element] [variable test] { [variable 'a'] },           [keyword attribute] [variable foo] { [variable "bar"] },",
+     "          [def&variable fn:doc]()[[ [variable foo][keyword /][variable @bar] [keyword eq] [variable $let] ]],",
+     "          [keyword //][variable x] }                 [comment (: a more 'evil' test :)]",
+     "      [comment (: Modified Blakeley example (: with nested comment :) ... :)]",
+     "      [keyword declare] [keyword private] [keyword function] [def&variable local:declare]() {()}[variable ;]",
+     "      [keyword declare] [keyword private] [keyword function] [def&variable local:private]() {()}[variable ;]",
+     "      [keyword declare] [keyword private] [keyword function] [def&variable local:function]() {()}[variable ;]",
+     "      [keyword declare] [keyword private] [keyword function] [def&variable local:local]() {()}[variable ;]",
+     "      [keyword let] [variable $let] [keyword :=] [variable <let>let] [variable $let] [keyword :=] [variable "let"<][keyword /let][variable >]",
+     "      [keyword return] [keyword element] [variable element] {",
+     "          [keyword attribute] [variable attribute] { [keyword try] { [def&variable xdmp:version]() } [keyword catch]([variable $e]) { [def&variable xdmp:log]([variable $e]) } },",
+     "          [keyword attribute] [variable fn:doc] { [variable "bar"] [variable castable] [keyword as] [atom xs:string] },",
+     "          [keyword element] [variable text] { [keyword text] { [variable "text"] } },",
+     "          [def&variable fn:doc]()[[ [qualifier child::][variable eq][keyword /]([variable @bar] [keyword |] [qualifier attribute::][variable attribute]) [keyword eq] [variable $let] ]],",
+     "          [keyword //][variable fn:doc]",
+     "      }");
+
+  MT("testEmptySequenceKeyword",
+     "[string \"foo\"] [keyword instance] [keyword of] [keyword empty-sequence]()");
+
+  MT("testMultiAttr",
+     "[tag 
    ][variable hello] [variable world][tag 
    ]");
+
+  MT("test namespaced variable",
+     "[keyword declare] [keyword namespace] [variable e] [keyword =] [string \"http://example.com/ANamespace\"][variable ;declare] [keyword variable] [variable $e:exampleComThisVarIsNotRecognized] [keyword as] [keyword element]([keyword *]) [variable external;]");
+
+  MT("test EQName variable",
+     "[keyword declare] [keyword variable] [variable $\"http://www.example.com/ns/my\":var] [keyword :=] [atom 12][variable ;]",
+     "[tag ]{[variable $\"http://www.example.com/ns/my\":var]}[tag ]");
+
+  MT("test EQName function",
+     "[keyword declare] [keyword function] [def&variable \"http://www.example.com/ns/my\":fn] ([variable $a] [keyword as] [atom xs:integer]) [keyword as] [atom xs:integer] {",
+     "   [variable $a] [keyword +] [atom 2]",
+     "}[variable ;]",
+     "[tag ]{[def&variable \"http://www.example.com/ns/my\":fn]([atom 12])}[tag ]");
+
+  MT("test EQName function with single quotes",
+     "[keyword declare] [keyword function] [def&variable 'http://www.example.com/ns/my':fn] ([variable $a] [keyword as] [atom xs:integer]) [keyword as] [atom xs:integer] {",
+     "   [variable $a] [keyword +] [atom 2]",
+     "}[variable ;]",
+     "[tag ]{[def&variable 'http://www.example.com/ns/my':fn]([atom 12])}[tag ]");
+
+  MT("testProcessingInstructions",
+     "[def&variable data]([comment&meta ]) [keyword instance] [keyword of] [atom xs:string]");
+
+  MT("testQuoteEscapeDouble",
+     "[keyword let] [variable $rootfolder] [keyword :=] [string \"c:\\builds\\winnt\\HEAD\\qa\\scripts\\\"]",
+     "[keyword let] [variable $keysfolder] [keyword :=] [def&variable concat]([variable $rootfolder], [string \"keys\\\"])");
+})();
diff --git a/public/codemirror/mode/xquery/xquery.js b/public/codemirror/mode/xquery/xquery.js
new file mode 100644
index 000000000..75dcbee3e
--- /dev/null
+++ b/public/codemirror/mode/xquery/xquery.js
@@ -0,0 +1,437 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("xquery", function() {
+
+  // The keywords object is set to the result of this self executing
+  // function. Each keyword is a property of the keywords object whose
+  // value is {type: atype, style: astyle}
+  var keywords = function(){
+    // convenience functions used to build keywords object
+    function kw(type) {return {type: type, style: "keyword"};}
+    var A = kw("keyword a")
+      , B = kw("keyword b")
+      , C = kw("keyword c")
+      , operator = kw("operator")
+      , atom = {type: "atom", style: "atom"}
+      , punctuation = {type: "punctuation", style: null}
+      , qualifier = {type: "axis_specifier", style: "qualifier"};
+
+    // kwObj is what is return from this function at the end
+    var kwObj = {
+      'if': A, 'switch': A, 'while': A, 'for': A,
+      'else': B, 'then': B, 'try': B, 'finally': B, 'catch': B,
+      'element': C, 'attribute': C, 'let': C, 'implements': C, 'import': C, 'module': C, 'namespace': C,
+      'return': C, 'super': C, 'this': C, 'throws': C, 'where': C, 'private': C,
+      ',': punctuation,
+      'null': atom, 'fn:false()': atom, 'fn:true()': atom
+    };
+
+    // a list of 'basic' keywords. For each add a property to kwObj with the value of
+    // {type: basic[i], style: "keyword"} e.g. 'after' --> {type: "after", style: "keyword"}
+    var basic = ['after','ancestor','ancestor-or-self','and','as','ascending','assert','attribute','before',
+    'by','case','cast','child','comment','declare','default','define','descendant','descendant-or-self',
+    'descending','document','document-node','element','else','eq','every','except','external','following',
+    'following-sibling','follows','for','function','if','import','in','instance','intersect','item',
+    'let','module','namespace','node','node','of','only','or','order','parent','precedes','preceding',
+    'preceding-sibling','processing-instruction','ref','return','returns','satisfies','schema','schema-element',
+    'self','some','sortby','stable','text','then','to','treat','typeswitch','union','variable','version','where',
+    'xquery', 'empty-sequence'];
+    for(var i=0, l=basic.length; i < l; i++) { kwObj[basic[i]] = kw(basic[i]);};
+
+    // a list of types. For each add a property to kwObj with the value of
+    // {type: "atom", style: "atom"}
+    var types = ['xs:string', 'xs:float', 'xs:decimal', 'xs:double', 'xs:integer', 'xs:boolean', 'xs:date', 'xs:dateTime',
+    'xs:time', 'xs:duration', 'xs:dayTimeDuration', 'xs:time', 'xs:yearMonthDuration', 'numeric', 'xs:hexBinary',
+    'xs:base64Binary', 'xs:anyURI', 'xs:QName', 'xs:byte','xs:boolean','xs:anyURI','xf:yearMonthDuration'];
+    for(var i=0, l=types.length; i < l; i++) { kwObj[types[i]] = atom;};
+
+    // each operator will add a property to kwObj with value of {type: "operator", style: "keyword"}
+    var operators = ['eq', 'ne', 'lt', 'le', 'gt', 'ge', ':=', '=', '>', '>=', '<', '<=', '.', '|', '?', 'and', 'or', 'div', 'idiv', 'mod', '*', '/', '+', '-'];
+    for(var i=0, l=operators.length; i < l; i++) { kwObj[operators[i]] = operator;};
+
+    // each axis_specifiers will add a property to kwObj with value of {type: "axis_specifier", style: "qualifier"}
+    var axis_specifiers = ["self::", "attribute::", "child::", "descendant::", "descendant-or-self::", "parent::",
+    "ancestor::", "ancestor-or-self::", "following::", "preceding::", "following-sibling::", "preceding-sibling::"];
+    for(var i=0, l=axis_specifiers.length; i < l; i++) { kwObj[axis_specifiers[i]] = qualifier; };
+
+    return kwObj;
+  }();
+
+  function chain(stream, state, f) {
+    state.tokenize = f;
+    return f(stream, state);
+  }
+
+  // the primary mode tokenizer
+  function tokenBase(stream, state) {
+    var ch = stream.next(),
+        mightBeFunction = false,
+        isEQName = isEQNameAhead(stream);
+
+    // an XML tag (if not in some sub, chained tokenizer)
+    if (ch == "<") {
+      if(stream.match("!--", true))
+        return chain(stream, state, tokenXMLComment);
+
+      if(stream.match("![CDATA", false)) {
+        state.tokenize = tokenCDATA;
+        return "tag";
+      }
+
+      if(stream.match("?", false)) {
+        return chain(stream, state, tokenPreProcessing);
+      }
+
+      var isclose = stream.eat("/");
+      stream.eatSpace();
+      var tagName = "", c;
+      while ((c = stream.eat(/[^\s\u00a0=<>\"\'\/?]/))) tagName += c;
+
+      return chain(stream, state, tokenTag(tagName, isclose));
+    }
+    // start code block
+    else if(ch == "{") {
+      pushStateStack(state,{ type: "codeblock"});
+      return null;
+    }
+    // end code block
+    else if(ch == "}") {
+      popStateStack(state);
+      return null;
+    }
+    // if we're in an XML block
+    else if(isInXmlBlock(state)) {
+      if(ch == ">")
+        return "tag";
+      else if(ch == "/" && stream.eat(">")) {
+        popStateStack(state);
+        return "tag";
+      }
+      else
+        return "variable";
+    }
+    // if a number
+    else if (/\d/.test(ch)) {
+      stream.match(/^\d*(?:\.\d*)?(?:E[+\-]?\d+)?/);
+      return "atom";
+    }
+    // comment start
+    else if (ch === "(" && stream.eat(":")) {
+      pushStateStack(state, { type: "comment"});
+      return chain(stream, state, tokenComment);
+    }
+    // quoted string
+    else if (  !isEQName && (ch === '"' || ch === "'"))
+      return chain(stream, state, tokenString(ch));
+    // variable
+    else if(ch === "$") {
+      return chain(stream, state, tokenVariable);
+    }
+    // assignment
+    else if(ch ===":" && stream.eat("=")) {
+      return "keyword";
+    }
+    // open paren
+    else if(ch === "(") {
+      pushStateStack(state, { type: "paren"});
+      return null;
+    }
+    // close paren
+    else if(ch === ")") {
+      popStateStack(state);
+      return null;
+    }
+    // open paren
+    else if(ch === "[") {
+      pushStateStack(state, { type: "bracket"});
+      return null;
+    }
+    // close paren
+    else if(ch === "]") {
+      popStateStack(state);
+      return null;
+    }
+    else {
+      var known = keywords.propertyIsEnumerable(ch) && keywords[ch];
+
+      // if there's a EQName ahead, consume the rest of the string portion, it's likely a function
+      if(isEQName && ch === '\"') while(stream.next() !== '"'){}
+      if(isEQName && ch === '\'') while(stream.next() !== '\''){}
+
+      // gobble up a word if the character is not known
+      if(!known) stream.eatWhile(/[\w\$_-]/);
+
+      // gobble a colon in the case that is a lib func type call fn:doc
+      var foundColon = stream.eat(":");
+
+      // if there's not a second colon, gobble another word. Otherwise, it's probably an axis specifier
+      // which should get matched as a keyword
+      if(!stream.eat(":") && foundColon) {
+        stream.eatWhile(/[\w\$_-]/);
+      }
+      // if the next non whitespace character is an open paren, this is probably a function (if not a keyword of other sort)
+      if(stream.match(/^[ \t]*\(/, false)) {
+        mightBeFunction = true;
+      }
+      // is the word a keyword?
+      var word = stream.current();
+      known = keywords.propertyIsEnumerable(word) && keywords[word];
+
+      // if we think it's a function call but not yet known,
+      // set style to variable for now for lack of something better
+      if(mightBeFunction && !known) known = {type: "function_call", style: "variable def"};
+
+      // if the previous word was element, attribute, axis specifier, this word should be the name of that
+      if(isInXmlConstructor(state)) {
+        popStateStack(state);
+        return "variable";
+      }
+      // as previously checked, if the word is element,attribute, axis specifier, call it an "xmlconstructor" and
+      // push the stack so we know to look for it on the next word
+      if(word == "element" || word == "attribute" || known.type == "axis_specifier") pushStateStack(state, {type: "xmlconstructor"});
+
+      // if the word is known, return the details of that else just call this a generic 'word'
+      return known ? known.style : "variable";
+    }
+  }
+
+  // handle comments, including nested
+  function tokenComment(stream, state) {
+    var maybeEnd = false, maybeNested = false, nestedCount = 0, ch;
+    while (ch = stream.next()) {
+      if (ch == ")" && maybeEnd) {
+        if(nestedCount > 0)
+          nestedCount--;
+        else {
+          popStateStack(state);
+          break;
+        }
+      }
+      else if(ch == ":" && maybeNested) {
+        nestedCount++;
+      }
+      maybeEnd = (ch == ":");
+      maybeNested = (ch == "(");
+    }
+
+    return "comment";
+  }
+
+  // tokenizer for string literals
+  // optionally pass a tokenizer function to set state.tokenize back to when finished
+  function tokenString(quote, f) {
+    return function(stream, state) {
+      var ch;
+
+      if(isInString(state) && stream.current() == quote) {
+        popStateStack(state);
+        if(f) state.tokenize = f;
+        return "string";
+      }
+
+      pushStateStack(state, { type: "string", name: quote, tokenize: tokenString(quote, f) });
+
+      // if we're in a string and in an XML block, allow an embedded code block
+      if(stream.match("{", false) && isInXmlAttributeBlock(state)) {
+        state.tokenize = tokenBase;
+        return "string";
+      }
+
+
+      while (ch = stream.next()) {
+        if (ch ==  quote) {
+          popStateStack(state);
+          if(f) state.tokenize = f;
+          break;
+        }
+        else {
+          // if we're in a string and in an XML block, allow an embedded code block in an attribute
+          if(stream.match("{", false) && isInXmlAttributeBlock(state)) {
+            state.tokenize = tokenBase;
+            return "string";
+          }
+
+        }
+      }
+
+      return "string";
+    };
+  }
+
+  // tokenizer for variables
+  function tokenVariable(stream, state) {
+    var isVariableChar = /[\w\$_-]/;
+
+    // a variable may start with a quoted EQName so if the next character is quote, consume to the next quote
+    if(stream.eat("\"")) {
+      while(stream.next() !== '\"'){};
+      stream.eat(":");
+    } else {
+      stream.eatWhile(isVariableChar);
+      if(!stream.match(":=", false)) stream.eat(":");
+    }
+    stream.eatWhile(isVariableChar);
+    state.tokenize = tokenBase;
+    return "variable";
+  }
+
+  // tokenizer for XML tags
+  function tokenTag(name, isclose) {
+    return function(stream, state) {
+      stream.eatSpace();
+      if(isclose && stream.eat(">")) {
+        popStateStack(state);
+        state.tokenize = tokenBase;
+        return "tag";
+      }
+      // self closing tag without attributes?
+      if(!stream.eat("/"))
+        pushStateStack(state, { type: "tag", name: name, tokenize: tokenBase});
+      if(!stream.eat(">")) {
+        state.tokenize = tokenAttribute;
+        return "tag";
+      }
+      else {
+        state.tokenize = tokenBase;
+      }
+      return "tag";
+    };
+  }
+
+  // tokenizer for XML attributes
+  function tokenAttribute(stream, state) {
+    var ch = stream.next();
+
+    if(ch == "/" && stream.eat(">")) {
+      if(isInXmlAttributeBlock(state)) popStateStack(state);
+      if(isInXmlBlock(state)) popStateStack(state);
+      return "tag";
+    }
+    if(ch == ">") {
+      if(isInXmlAttributeBlock(state)) popStateStack(state);
+      return "tag";
+    }
+    if(ch == "=")
+      return null;
+    // quoted string
+    if (ch == '"' || ch == "'")
+      return chain(stream, state, tokenString(ch, tokenAttribute));
+
+    if(!isInXmlAttributeBlock(state))
+      pushStateStack(state, { type: "attribute", tokenize: tokenAttribute});
+
+    stream.eat(/[a-zA-Z_:]/);
+    stream.eatWhile(/[-a-zA-Z0-9_:.]/);
+    stream.eatSpace();
+
+    // the case where the attribute has not value and the tag was closed
+    if(stream.match(">", false) || stream.match("/", false)) {
+      popStateStack(state);
+      state.tokenize = tokenBase;
+    }
+
+    return "attribute";
+  }
+
+  // handle comments, including nested
+  function tokenXMLComment(stream, state) {
+    var ch;
+    while (ch = stream.next()) {
+      if (ch == "-" && stream.match("->", true)) {
+        state.tokenize = tokenBase;
+        return "comment";
+      }
+    }
+  }
+
+
+  // handle CDATA
+  function tokenCDATA(stream, state) {
+    var ch;
+    while (ch = stream.next()) {
+      if (ch == "]" && stream.match("]", true)) {
+        state.tokenize = tokenBase;
+        return "comment";
+      }
+    }
+  }
+
+  // handle preprocessing instructions
+  function tokenPreProcessing(stream, state) {
+    var ch;
+    while (ch = stream.next()) {
+      if (ch == "?" && stream.match(">", true)) {
+        state.tokenize = tokenBase;
+        return "comment meta";
+      }
+    }
+  }
+
+
+  // functions to test the current context of the state
+  function isInXmlBlock(state) { return isIn(state, "tag"); }
+  function isInXmlAttributeBlock(state) { return isIn(state, "attribute"); }
+  function isInXmlConstructor(state) { return isIn(state, "xmlconstructor"); }
+  function isInString(state) { return isIn(state, "string"); }
+
+  function isEQNameAhead(stream) {
+    // assume we've already eaten a quote (")
+    if(stream.current() === '"')
+      return stream.match(/^[^\"]+\"\:/, false);
+    else if(stream.current() === '\'')
+      return stream.match(/^[^\"]+\'\:/, false);
+    else
+      return false;
+  }
+
+  function isIn(state, type) {
+    return (state.stack.length && state.stack[state.stack.length - 1].type == type);
+  }
+
+  function pushStateStack(state, newState) {
+    state.stack.push(newState);
+  }
+
+  function popStateStack(state) {
+    state.stack.pop();
+    var reinstateTokenize = state.stack.length && state.stack[state.stack.length-1].tokenize;
+    state.tokenize = reinstateTokenize || tokenBase;
+  }
+
+  // the interface for the mode API
+  return {
+    startState: function() {
+      return {
+        tokenize: tokenBase,
+        cc: [],
+        stack: []
+      };
+    },
+
+    token: function(stream, state) {
+      if (stream.eatSpace()) return null;
+      var style = state.tokenize(stream, state);
+      return style;
+    },
+
+    blockCommentStart: "(:",
+    blockCommentEnd: ":)"
+
+  };
+
+});
+
+CodeMirror.defineMIME("application/xquery", "xquery");
+
+});
diff --git a/public/codemirror/mode/yacas/index.html b/public/codemirror/mode/yacas/index.html
new file mode 100644
index 000000000..8e52cafb1
--- /dev/null
+++ b/public/codemirror/mode/yacas/index.html
@@ -0,0 +1,87 @@
+
+
+CodeMirror: yacas mode
+
+
+
+
+
+
+
+
+
+
+
    
+
    yacas mode
    
+
+
+
+
+
+
+
    MIME types defined: text/x-yacas (yacas).
    
+
    
diff --git a/public/codemirror/mode/yacas/yacas.js b/public/codemirror/mode/yacas/yacas.js
new file mode 100644
index 000000000..30bd60b2f
--- /dev/null
+++ b/public/codemirror/mode/yacas/yacas.js
@@ -0,0 +1,204 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// Yacas mode copyright (c) 2015 by Grzegorz Mazur
+// Loosely based on mathematica mode by Calin Barbat
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode('yacas', function(_config, _parserConfig) {
+
+  function words(str) {
+    var obj = {}, words = str.split(" ");
+    for (var i = 0; i < words.length; ++i) obj[words[i]] = true;
+    return obj;
+  }
+
+  var bodiedOps = words("Assert BackQuote D Defun Deriv For ForEach FromFile " +
+                        "FromString Function Integrate InverseTaylor Limit " +
+                        "LocalSymbols Macro MacroRule MacroRulePattern " +
+                        "NIntegrate Rule RulePattern Subst TD TExplicitSum " +
+                        "TSum Taylor Taylor1 Taylor2 Taylor3 ToFile " +
+                        "ToStdout ToString TraceRule Until While");
+
+  // patterns
+  var pFloatForm  = "(?:(?:\\.\\d+|\\d+\\.\\d*|\\d+)(?:[eE][+-]?\\d+)?)";
+  var pIdentifier = "(?:[a-zA-Z\\$'][a-zA-Z0-9\\$']*)";
+
+  // regular expressions
+  var reFloatForm    = new RegExp(pFloatForm);
+  var reIdentifier   = new RegExp(pIdentifier);
+  var rePattern      = new RegExp(pIdentifier + "?_" + pIdentifier);
+  var reFunctionLike = new RegExp(pIdentifier + "\\s*\\(");
+
+  function tokenBase(stream, state) {
+    var ch;
+
+    // get next character
+    ch = stream.next();
+
+    // string
+    if (ch === '"') {
+      state.tokenize = tokenString;
+      return state.tokenize(stream, state);
+    }
+
+    // comment
+    if (ch === '/') {
+      if (stream.eat('*')) {
+        state.tokenize = tokenComment;
+        return state.tokenize(stream, state);
+      }
+      if (stream.eat("/")) {
+        stream.skipToEnd();
+        return "comment";
+      }
+    }
+
+    // go back one character
+    stream.backUp(1);
+
+    // update scope info
+    var m = stream.match(/^(\w+)\s*\(/, false);
+    if (m !== null && bodiedOps.hasOwnProperty(m[1]))
+      state.scopes.push('bodied');
+
+    var scope = currentScope(state);
+
+    if (scope === 'bodied' && ch === '[')
+      state.scopes.pop();
+
+    if (ch === '[' || ch === '{' || ch === '(')
+      state.scopes.push(ch);
+
+    scope = currentScope(state);
+
+    if (scope === '[' && ch === ']' ||
+        scope === '{' && ch === '}' ||
+        scope === '(' && ch === ')')
+      state.scopes.pop();
+
+    if (ch === ';') {
+      while (scope === 'bodied') {
+        state.scopes.pop();
+        scope = currentScope(state);
+      }
+    }
+
+    // look for ordered rules
+    if (stream.match(/\d+ *#/, true, false)) {
+      return 'qualifier';
+    }
+
+    // look for numbers
+    if (stream.match(reFloatForm, true, false)) {
+      return 'number';
+    }
+
+    // look for placeholders
+    if (stream.match(rePattern, true, false)) {
+      return 'variable-3';
+    }
+
+    // match all braces separately
+    if (stream.match(/(?:\[|\]|{|}|\(|\))/, true, false)) {
+      return 'bracket';
+    }
+
+    // literals looking like function calls
+    if (stream.match(reFunctionLike, true, false)) {
+      stream.backUp(1);
+      return 'variable';
+    }
+
+    // all other identifiers
+    if (stream.match(reIdentifier, true, false)) {
+      return 'variable-2';
+    }
+
+    // operators; note that operators like @@ or /; are matched separately for each symbol.
+    if (stream.match(/(?:\\|\+|\-|\*|\/|,|;|\.|:|@|~|=|>|<|&|\||_|`|'|\^|\?|!|%)/, true, false)) {
+      return 'operator';
+    }
+
+    // everything else is an error
+    return 'error';
+  }
+
+  function tokenString(stream, state) {
+    var next, end = false, escaped = false;
+    while ((next = stream.next()) != null) {
+      if (next === '"' && !escaped) {
+        end = true;
+        break;
+      }
+      escaped = !escaped && next === '\\';
+    }
+    if (end && !escaped) {
+      state.tokenize = tokenBase;
+    }
+    return 'string';
+  };
+
+  function tokenComment(stream, state) {
+    var prev, next;
+    while((next = stream.next()) != null) {
+      if (prev === '*' && next === '/') {
+        state.tokenize = tokenBase;
+        break;
+      }
+      prev = next;
+    }
+    return 'comment';
+  }
+
+  function currentScope(state) {
+    var scope = null;
+    if (state.scopes.length > 0)
+      scope = state.scopes[state.scopes.length - 1];
+    return scope;
+  }
+
+  return {
+    startState: function() {
+      return {
+        tokenize: tokenBase,
+        scopes: []
+      };
+    },
+    token: function(stream, state) {
+      if (stream.eatSpace()) return null;
+      return state.tokenize(stream, state);
+    },
+    indent: function(state, textAfter) {
+      if (state.tokenize !== tokenBase && state.tokenize !== null)
+        return CodeMirror.Pass;
+
+      var delta = 0;
+      if (textAfter === ']' || textAfter === '];' ||
+          textAfter === '}' || textAfter === '};' ||
+          textAfter === ');')
+        delta = -1;
+
+      return (state.scopes.length + delta) * _config.indentUnit;
+    },
+    electricChars: "{}[]();",
+    blockCommentStart: "/*",
+    blockCommentEnd: "*/",
+    lineComment: "//"
+  };
+});
+
+CodeMirror.defineMIME('text/x-yacas', {
+  name: 'yacas'
+});
+
+});
diff --git a/public/codemirror/mode/yaml-frontmatter/index.html b/public/codemirror/mode/yaml-frontmatter/index.html
new file mode 100644
index 000000000..30cb294e8
--- /dev/null
+++ b/public/codemirror/mode/yaml-frontmatter/index.html
@@ -0,0 +1,121 @@
+
+
+CodeMirror: YAML front matter mode
+
+
+
+
+
+
+
+
+
+
+
+
+
+
    
+
    YAML front matter mode
    
+
    
+
+
    Defines a mode that parses
+a YAML frontmatter
+at the start of a file, switching to a base mode at the end of that.
+Takes a mode configuration option base to configure the
+base mode, which defaults to "gfm".
    
+
+    
+
+  
    
diff --git a/public/codemirror/mode/yaml-frontmatter/yaml-frontmatter.js b/public/codemirror/mode/yaml-frontmatter/yaml-frontmatter.js
new file mode 100644
index 000000000..5f4977237
--- /dev/null
+++ b/public/codemirror/mode/yaml-frontmatter/yaml-frontmatter.js
@@ -0,0 +1,68 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function (mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"), require("../yaml/yaml"))
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror", "../yaml/yaml"], mod)
+  else // Plain browser env
+    mod(CodeMirror)
+})(function (CodeMirror) {
+
+  var START = 0, FRONTMATTER = 1, BODY = 2
+
+  // a mixed mode for Markdown text with an optional YAML front matter
+  CodeMirror.defineMode("yaml-frontmatter", function (config, parserConfig) {
+    var yamlMode = CodeMirror.getMode(config, "yaml")
+    var innerMode = CodeMirror.getMode(config, parserConfig && parserConfig.base || "gfm")
+
+    function curMode(state) {
+      return state.state == BODY ? innerMode : yamlMode
+    }
+
+    return {
+      startState: function () {
+        return {
+          state: START,
+          inner: CodeMirror.startState(yamlMode)
+        }
+      },
+      copyState: function (state) {
+        return {
+          state: state.state,
+          inner: CodeMirror.copyState(curMode(state), state.inner)
+        }
+      },
+      token: function (stream, state) {
+        if (state.state == START) {
+          if (stream.match(/---/, false)) {
+            state.state = FRONTMATTER
+            return yamlMode.token(stream, state.inner)
+          } else {
+            state.state = BODY
+            state.inner = CodeMirror.startState(innerMode)
+            return innerMode.token(stream, state.inner)
+          }
+        } else if (state.state == FRONTMATTER) {
+          var end = stream.sol() && stream.match(/---/, false)
+          var style = yamlMode.token(stream, state.inner)
+          if (end) {
+            state.state = BODY
+            state.inner = CodeMirror.startState(innerMode)
+          }
+          return style
+        } else {
+          return innerMode.token(stream, state.inner)
+        }
+      },
+      innerMode: function (state) {
+        return {mode: curMode(state), state: state.inner}
+      },
+      blankLine: function (state) {
+        var mode = curMode(state)
+        if (mode.blankLine) return mode.blankLine(state.inner)
+      }
+    }
+  })
+});
diff --git a/public/codemirror/mode/yaml/index.html b/public/codemirror/mode/yaml/index.html
new file mode 100644
index 000000000..be9b63236
--- /dev/null
+++ b/public/codemirror/mode/yaml/index.html
@@ -0,0 +1,80 @@
+
+
+CodeMirror: YAML mode
+
+
+
+
+
+
+
+
+
+
    
+
    YAML mode
    
+
    
+    
+
+    
    MIME types defined: text/x-yaml.
    
+
+  
    
diff --git a/public/codemirror/mode/yaml/yaml.js b/public/codemirror/mode/yaml/yaml.js
new file mode 100644
index 000000000..59c0ecdbe
--- /dev/null
+++ b/public/codemirror/mode/yaml/yaml.js
@@ -0,0 +1,118 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+    mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+    define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+    mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode("yaml", function() {
+
+  var cons = ['true', 'false', 'on', 'off', 'yes', 'no'];
+  var keywordRegex = new RegExp("\\b(("+cons.join(")|(")+"))$", 'i');
+
+  return {
+    token: function(stream, state) {
+      var ch = stream.peek();
+      var esc = state.escaped;
+      state.escaped = false;
+      /* comments */
+      if (ch == "#" && (stream.pos == 0 || /\s/.test(stream.string.charAt(stream.pos - 1)))) {
+        stream.skipToEnd();
+        return "comment";
+      }
+
+      if (stream.match(/^('([^']|\\.)*'?|"([^"]|\\.)*"?)/))
+        return "string";
+
+      if (state.literal && stream.indentation() > state.keyCol) {
+        stream.skipToEnd(); return "string";
+      } else if (state.literal) { state.literal = false; }
+      if (stream.sol()) {
+        state.keyCol = 0;
+        state.pair = false;
+        state.pairStart = false;
+        /* document start */
+        if(stream.match(/---/)) { return "def"; }
+        /* document end */
+        if (stream.match(/\.\.\./)) { return "def"; }
+        /* array list item */
+        if (stream.match(/\s*-\s+/)) { return 'meta'; }
+      }
+      /* inline pairs/lists */
+      if (stream.match(/^(\{|\}|\[|\])/)) {
+        if (ch == '{')
+          state.inlinePairs++;
+        else if (ch == '}')
+          state.inlinePairs--;
+        else if (ch == '[')
+          state.inlineList++;
+        else
+          state.inlineList--;
+        return 'meta';
+      }
+
+      /* list seperator */
+      if (state.inlineList > 0 && !esc && ch == ',') {
+        stream.next();
+        return 'meta';
+      }
+      /* pairs seperator */
+      if (state.inlinePairs > 0 && !esc && ch == ',') {
+        state.keyCol = 0;
+        state.pair = false;
+        state.pairStart = false;
+        stream.next();
+        return 'meta';
+      }
+
+      /* start of value of a pair */
+      if (state.pairStart) {
+        /* block literals */
+        if (stream.match(/^\s*(\||\>)\s*/)) { state.literal = true; return 'meta'; };
+        /* references */
+        if (stream.match(/^\s*(\&|\*)[a-z0-9\._-]+\b/i)) { return 'variable-2'; }
+        /* numbers */
+        if (state.inlinePairs == 0 && stream.match(/^\s*-?[0-9\.\,]+\s?$/)) { return 'number'; }
+        if (state.inlinePairs > 0 && stream.match(/^\s*-?[0-9\.\,]+\s?(?=(,|}))/)) { return 'number'; }
+        /* keywords */
+        if (stream.match(keywordRegex)) { return 'keyword'; }
+      }
+
+      /* pairs (associative arrays) -> key */
+      if (!state.pair && stream.match(/^\s*(?:[,\[\]{}&*!|>'"%@`][^\s'":]|[^,\[\]{}#&*!|>'"%@`])[^#]*?(?=\s*:($|\s))/)) {
+        state.pair = true;
+        state.keyCol = stream.indentation();
+        return "atom";
+      }
+      if (state.pair && stream.match(/^:\s*/)) { state.pairStart = true; return 'meta'; }
+
+      /* nothing found, continue */
+      state.pairStart = false;
+      state.escaped = (ch == '\\');
+      stream.next();
+      return null;
+    },
+    startState: function() {
+      return {
+        pair: false,
+        pairStart: false,
+        keyCol: 0,
+        inlinePairs: 0,
+        inlineList: 0,
+        literal: false,
+        escaped: false
+      };
+    }
+  };
+});
+
+CodeMirror.defineMIME("text/x-yaml", "yaml");
+CodeMirror.defineMIME("text/yaml", "yaml");
+
+});
diff --git a/public/codemirror/mode/z80/index.html b/public/codemirror/mode/z80/index.html
new file mode 100644
index 000000000..a41b7473e
--- /dev/null
+++ b/public/codemirror/mode/z80/index.html
@@ -0,0 +1,53 @@
+
+
+CodeMirror: Z80 assembly mode
+
+
+
+
+
+
+
+
+
+
    
+
    Z80 assembly mode
    
+
+
+
    
+
+    
+
+    
    MIME types defined: text/x-z80, text/x-ez80.
    
+  
    
diff --git a/public/codemirror/mode/z80/z80.js b/public/codemirror/mode/z80/z80.js
new file mode 100644
index 000000000..aae70216f
--- /dev/null
+++ b/public/codemirror/mode/z80/z80.js
@@ -0,0 +1,116 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function(mod) {
+  if (typeof exports == "object" && typeof module == "object") // CommonJS
+  mod(require("../../lib/codemirror"));
+  else if (typeof define == "function" && define.amd) // AMD
+  define(["../../lib/codemirror"], mod);
+  else // Plain browser env
+  mod(CodeMirror);
+})(function(CodeMirror) {
+"use strict";
+
+CodeMirror.defineMode('z80', function(_config, parserConfig) {
+  var ez80 = parserConfig.ez80;
+  var keywords1, keywords2;
+  if (ez80) {
+    keywords1 = /^(exx?|(ld|cp)([di]r?)?|[lp]ea|pop|push|ad[cd]|cpl|daa|dec|inc|neg|sbc|sub|and|bit|[cs]cf|x?or|res|set|r[lr]c?a?|r[lr]d|s[lr]a|srl|djnz|nop|[de]i|halt|im|in([di]mr?|ir?|irx|2r?)|ot(dmr?|[id]rx|imr?)|out(0?|[di]r?|[di]2r?)|tst(io)?|slp)(\.([sl]?i)?[sl])?\b/i;
+    keywords2 = /^(((call|j[pr]|rst|ret[in]?)(\.([sl]?i)?[sl])?)|(rs|st)mix)\b/i;
+  } else {
+    keywords1 = /^(exx?|(ld|cp|in)([di]r?)?|pop|push|ad[cd]|cpl|daa|dec|inc|neg|sbc|sub|and|bit|[cs]cf|x?or|res|set|r[lr]c?a?|r[lr]d|s[lr]a|srl|djnz|nop|rst|[de]i|halt|im|ot[di]r|out[di]?)\b/i;
+    keywords2 = /^(call|j[pr]|ret[in]?|b_?(call|jump))\b/i;
+  }
+
+  var variables1 = /^(af?|bc?|c|de?|e|hl?|l|i[xy]?|r|sp)\b/i;
+  var variables2 = /^(n?[zc]|p[oe]?|m)\b/i;
+  var errors = /^([hl][xy]|i[xy][hl]|slia|sll)\b/i;
+  var numbers = /^([\da-f]+h|[0-7]+o|[01]+b|\d+d?)\b/i;
+
+  return {
+    startState: function() {
+      return {
+        context: 0
+      };
+    },
+    token: function(stream, state) {
+      if (!stream.column())
+        state.context = 0;
+
+      if (stream.eatSpace())
+        return null;
+
+      var w;
+
+      if (stream.eatWhile(/\w/)) {
+        if (ez80 && stream.eat('.')) {
+          stream.eatWhile(/\w/);
+        }
+        w = stream.current();
+
+        if (stream.indentation()) {
+          if ((state.context == 1 || state.context == 4) && variables1.test(w)) {
+            state.context = 4;
+            return 'var2';
+          }
+
+          if (state.context == 2 && variables2.test(w)) {
+            state.context = 4;
+            return 'var3';
+          }
+
+          if (keywords1.test(w)) {
+            state.context = 1;
+            return 'keyword';
+          } else if (keywords2.test(w)) {
+            state.context = 2;
+            return 'keyword';
+          } else if (state.context == 4 && numbers.test(w)) {
+            return 'number';
+          }
+
+          if (errors.test(w))
+            return 'error';
+        } else if (stream.match(numbers)) {
+          return 'number';
+        } else {
+          return null;
+        }
+      } else if (stream.eat(';')) {
+        stream.skipToEnd();
+        return 'comment';
+      } else if (stream.eat('"')) {
+        while (w = stream.next()) {
+          if (w == '"')
+            break;
+
+          if (w == '\\')
+            stream.next();
+        }
+        return 'string';
+      } else if (stream.eat('\'')) {
+        if (stream.match(/\\?.'/))
+          return 'number';
+      } else if (stream.eat('.') || stream.sol() && stream.eat('#')) {
+        state.context = 5;
+
+        if (stream.eatWhile(/\w/))
+          return 'def';
+      } else if (stream.eat('$')) {
+        if (stream.eatWhile(/[\da-f]/i))
+          return 'number';
+      } else if (stream.eat('%')) {
+        if (stream.eatWhile(/[01]/))
+          return 'number';
+      } else {
+        stream.next();
+      }
+      return null;
+    }
+  };
+});
+
+CodeMirror.defineMIME("text/x-z80", "z80");
+CodeMirror.defineMIME("text/x-ez80", { name: "z80", ez80: true });
+
+});
diff --git a/public/codemirror/package.json b/public/codemirror/package.json
new file mode 100644
index 000000000..2d29a550a
--- /dev/null
+++ b/public/codemirror/package.json
@@ -0,0 +1,48 @@
+{
+  "name": "codemirror",
+  "version": "5.25.0",
+  "main": "lib/codemirror.js",
+  "description": "Full-featured in-browser code editor",
+  "license": "MIT",
+  "directories": {
+    "lib": "./lib"
+  },
+  "scripts": {
+    "build": "rollup -c",
+    "watch": "rollup -w -c",
+    "prepublish": "npm run-script build",
+    "test": "node ./test/run.js",
+    "lint": "bin/lint"
+  },
+  "devDependencies": {
+    "blint": "^0.5.1",
+    "node-static": "0.6.0",
+    "phantomjs-prebuilt": "^2.1.12",
+    "rollup": "^0.41.0",
+    "rollup-plugin-buble": "^0.15.0",
+    "rollup-watch": "^3.2.0"
+  },
+  "bugs": "http://github.com/codemirror/CodeMirror/issues",
+  "keywords": [
+    "JavaScript",
+    "CodeMirror",
+    "Editor"
+  ],
+  "homepage": "http://codemirror.net",
+  "maintainers": [
+    {
+      "name": "Marijn Haverbeke",
+      "email": "marijnh@gmail.com",
+      "web": "http://marijnhaverbeke.nl"
+    }
+  ],
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/codemirror/CodeMirror.git"
+  },
+  "jspm": {
+    "directories": {},
+    "dependencies": {},
+    "devDependencies": {}
+  }
+}
diff --git a/public/codemirror/rollup.config.js b/public/codemirror/rollup.config.js
new file mode 100644
index 000000000..9a17b24ff
--- /dev/null
+++ b/public/codemirror/rollup.config.js
@@ -0,0 +1,18 @@
+import buble from 'rollup-plugin-buble';
+
+export default {
+  banner: `// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+// This is CodeMirror (http://codemirror.net), a code editor
+// implemented in JavaScript on top of the browser's DOM.
+//
+// You can find some technical background for some of the code below
+// at http://marijnhaverbeke.nl/blog/#cm-internals .
+`,
+  entry: "src/codemirror.js",
+  format: "umd",
+  dest: "lib/codemirror.js",
+  moduleName: "CodeMirror",
+  plugins: [ buble({namedFunctionExpressions: false}) ]
+};
diff --git a/public/codemirror/src/codemirror.js b/public/codemirror/src/codemirror.js
new file mode 100644
index 000000000..3c16cc875
--- /dev/null
+++ b/public/codemirror/src/codemirror.js
@@ -0,0 +1,3 @@
+import { CodeMirror } from "./edit/main"
+
+export default CodeMirror
diff --git a/public/codemirror/src/display/Display.js b/public/codemirror/src/display/Display.js
new file mode 100644
index 000000000..ad0256bdf
--- /dev/null
+++ b/public/codemirror/src/display/Display.js
@@ -0,0 +1,106 @@
+import { gecko, ie, ie_version, mobile, webkit } from "../util/browser"
+import { elt, eltP } from "../util/dom"
+import { scrollerGap } from "../util/misc"
+
+// The display handles the DOM integration, both for input reading
+// and content drawing. It holds references to DOM nodes and
+// display-related state.
+
+export function Display(place, doc, input) {
+  let d = this
+  this.input = input
+
+  // Covers bottom-right square when both scrollbars are present.
+  d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler")
+  d.scrollbarFiller.setAttribute("cm-not-content", "true")
+  // Covers bottom of gutter when coverGutterNextToScrollbar is on
+  // and h scrollbar is present.
+  d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler")
+  d.gutterFiller.setAttribute("cm-not-content", "true")
+  // Will contain the actual code, positioned to cover the viewport.
+  d.lineDiv = eltP("div", null, "CodeMirror-code")
+  // Elements are added to these to represent selection and cursors.
+  d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1")
+  d.cursorDiv = elt("div", null, "CodeMirror-cursors")
+  // A visibility: hidden element used to find the size of things.
+  d.measure = elt("div", null, "CodeMirror-measure")
+  // When lines outside of the viewport are measured, they are drawn in this.
+  d.lineMeasure = elt("div", null, "CodeMirror-measure")
+  // Wraps everything that needs to exist inside the vertically-padded coordinate system
+  d.lineSpace = eltP("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv],
+                    null, "position: relative; outline: none")
+  let lines = eltP("div", [d.lineSpace], "CodeMirror-lines")
+  // Moved around its parent to cover visible view.
+  d.mover = elt("div", [lines], null, "position: relative")
+  // Set to the height of the document, allowing scrolling.
+  d.sizer = elt("div", [d.mover], "CodeMirror-sizer")
+  d.sizerWidth = null
+  // Behavior of elts with overflow: auto and padding is
+  // inconsistent across browsers. This is used to ensure the
+  // scrollable area is big enough.
+  d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;")
+  // Will contain the gutters, if any.
+  d.gutters = elt("div", null, "CodeMirror-gutters")
+  d.lineGutter = null
+  // Actual scrollable element.
+  d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll")
+  d.scroller.setAttribute("tabIndex", "-1")
+  // The element in which the editor lives.
+  d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror")
+
+  // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported)
+  if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0 }
+  if (!webkit && !(gecko && mobile)) d.scroller.draggable = true
+
+  if (place) {
+    if (place.appendChild) place.appendChild(d.wrapper)
+    else place(d.wrapper)
+  }
+
+  // Current rendered range (may be bigger than the view window).
+  d.viewFrom = d.viewTo = doc.first
+  d.reportedViewFrom = d.reportedViewTo = doc.first
+  // Information about the rendered lines.
+  d.view = []
+  d.renderedView = null
+  // Holds info about a single rendered line when it was rendered
+  // for measurement, while not in view.
+  d.externalMeasured = null
+  // Empty space (in pixels) above the view
+  d.viewOffset = 0
+  d.lastWrapHeight = d.lastWrapWidth = 0
+  d.updateLineNumbers = null
+
+  d.nativeBarWidth = d.barHeight = d.barWidth = 0
+  d.scrollbarsClipped = false
+
+  // Used to only resize the line number gutter when necessary (when
+  // the amount of lines crosses a boundary that makes its width change)
+  d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null
+  // Set to true when a non-horizontal-scrolling line widget is
+  // added. As an optimization, line widget aligning is skipped when
+  // this is false.
+  d.alignWidgets = false
+
+  d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null
+
+  // Tracks the maximum line length so that the horizontal scrollbar
+  // can be kept static when scrolling.
+  d.maxLine = null
+  d.maxLineLength = 0
+  d.maxLineChanged = false
+
+  // Used for measuring wheel scrolling granularity
+  d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null
+
+  // True when shift is held down.
+  d.shift = false
+
+  // Used to track whether anything happened since the context menu
+  // was opened.
+  d.selForContextMenu = null
+
+  d.activeTouch = null
+
+  input.init(d)
+}
diff --git a/public/codemirror/src/display/focus.js b/public/codemirror/src/display/focus.js
new file mode 100644
index 000000000..ee52daffa
--- /dev/null
+++ b/public/codemirror/src/display/focus.js
@@ -0,0 +1,47 @@
+import { restartBlink } from "./selection"
+import { webkit } from "../util/browser"
+import { addClass, rmClass } from "../util/dom"
+import { signal } from "../util/event"
+
+export function ensureFocus(cm) {
+  if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm) }
+}
+
+export function delayBlurEvent(cm) {
+  cm.state.delayingBlurEvent = true
+  setTimeout(() => { if (cm.state.delayingBlurEvent) {
+    cm.state.delayingBlurEvent = false
+    onBlur(cm)
+  } }, 100)
+}
+
+export function onFocus(cm, e) {
+  if (cm.state.delayingBlurEvent) cm.state.delayingBlurEvent = false
+
+  if (cm.options.readOnly == "nocursor") return
+  if (!cm.state.focused) {
+    signal(cm, "focus", cm, e)
+    cm.state.focused = true
+    addClass(cm.display.wrapper, "CodeMirror-focused")
+    // This test prevents this from firing when a context
+    // menu is closed (since the input reset would kill the
+    // select-all detection hack)
+    if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) {
+      cm.display.input.reset()
+      if (webkit) setTimeout(() => cm.display.input.reset(true), 20) // Issue #1730
+    }
+    cm.display.input.receivedFocus()
+  }
+  restartBlink(cm)
+}
+export function onBlur(cm, e) {
+  if (cm.state.delayingBlurEvent) return
+
+  if (cm.state.focused) {
+    signal(cm, "blur", cm, e)
+    cm.state.focused = false
+    rmClass(cm.display.wrapper, "CodeMirror-focused")
+  }
+  clearInterval(cm.display.blinker)
+  setTimeout(() => { if (!cm.state.focused) cm.display.shift = false }, 150)
+}
diff --git a/public/codemirror/src/display/gutters.js b/public/codemirror/src/display/gutters.js
new file mode 100644
index 000000000..7ccf119e8
--- /dev/null
+++ b/public/codemirror/src/display/gutters.js
@@ -0,0 +1,34 @@
+import { elt, removeChildren } from "../util/dom"
+import { indexOf } from "../util/misc"
+
+import { updateGutterSpace } from "./update_display"
+
+// Rebuild the gutter elements, ensure the margin to the left of the
+// code matches their width.
+export function updateGutters(cm) {
+  let gutters = cm.display.gutters, specs = cm.options.gutters
+  removeChildren(gutters)
+  let i = 0
+  for (; i < specs.length; ++i) {
+    let gutterClass = specs[i]
+    let gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass))
+    if (gutterClass == "CodeMirror-linenumbers") {
+      cm.display.lineGutter = gElt
+      gElt.style.width = (cm.display.lineNumWidth || 1) + "px"
+    }
+  }
+  gutters.style.display = i ? "" : "none"
+  updateGutterSpace(cm)
+}
+
+// Make sure the gutters options contains the element
+// "CodeMirror-linenumbers" when the lineNumbers option is true.
+export function setGuttersForLineNumbers(options) {
+  let found = indexOf(options.gutters, "CodeMirror-linenumbers")
+  if (found == -1 && options.lineNumbers) {
+    options.gutters = options.gutters.concat(["CodeMirror-linenumbers"])
+  } else if (found > -1 && !options.lineNumbers) {
+    options.gutters = options.gutters.slice(0)
+    options.gutters.splice(found, 1)
+  }
+}
diff --git a/public/codemirror/src/display/highlight_worker.js b/public/codemirror/src/display/highlight_worker.js
new file mode 100644
index 000000000..d34db2b42
--- /dev/null
+++ b/public/codemirror/src/display/highlight_worker.js
@@ -0,0 +1,51 @@
+import { getStateBefore, highlightLine, processLine } from "../line/highlight"
+import { copyState } from "../modes"
+import { bind } from "../util/misc"
+
+import { runInOp } from "./operations"
+import { regLineChange } from "./view_tracking"
+
+// HIGHLIGHT WORKER
+
+export function startWorker(cm, time) {
+  if (cm.doc.mode.startState && cm.doc.frontier < cm.display.viewTo)
+    cm.state.highlight.set(time, bind(highlightWorker, cm))
+}
+
+function highlightWorker(cm) {
+  let doc = cm.doc
+  if (doc.frontier < doc.first) doc.frontier = doc.first
+  if (doc.frontier >= cm.display.viewTo) return
+  let end = +new Date + cm.options.workTime
+  let state = copyState(doc.mode, getStateBefore(cm, doc.frontier))
+  let changedLines = []
+
+  doc.iter(doc.frontier, Math.min(doc.first + doc.size, cm.display.viewTo + 500), line => {
+    if (doc.frontier >= cm.display.viewFrom) { // Visible
+      let oldStyles = line.styles, tooLong = line.text.length > cm.options.maxHighlightLength
+      let highlighted = highlightLine(cm, line, tooLong ? copyState(doc.mode, state) : state, true)
+      line.styles = highlighted.styles
+      let oldCls = line.styleClasses, newCls = highlighted.classes
+      if (newCls) line.styleClasses = newCls
+      else if (oldCls) line.styleClasses = null
+      let ischange = !oldStyles || oldStyles.length != line.styles.length ||
+        oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass)
+      for (let i = 0; !ischange && i < oldStyles.length; ++i) ischange = oldStyles[i] != line.styles[i]
+      if (ischange) changedLines.push(doc.frontier)
+      line.stateAfter = tooLong ? state : copyState(doc.mode, state)
+    } else {
+      if (line.text.length <= cm.options.maxHighlightLength)
+        processLine(cm, line.text, state)
+      line.stateAfter = doc.frontier % 5 == 0 ? copyState(doc.mode, state) : null
+    }
+    ++doc.frontier
+    if (+new Date > end) {
+      startWorker(cm, cm.options.workDelay)
+      return true
+    }
+  })
+  if (changedLines.length) runInOp(cm, () => {
+    for (let i = 0; i < changedLines.length; i++)
+      regLineChange(cm, changedLines[i], "text")
+  })
+}
diff --git a/public/codemirror/src/display/line_numbers.js b/public/codemirror/src/display/line_numbers.js
new file mode 100644
index 000000000..c48f2204d
--- /dev/null
+++ b/public/codemirror/src/display/line_numbers.js
@@ -0,0 +1,48 @@
+import { lineNumberFor } from "../line/utils_line"
+import { compensateForHScroll } from "../measurement/position_measurement"
+import { elt } from "../util/dom"
+
+import { updateGutterSpace } from "./update_display"
+
+// Re-align line numbers and gutter marks to compensate for
+// horizontal scrolling.
+export function alignHorizontally(cm) {
+  let display = cm.display, view = display.view
+  if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) return
+  let comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft
+  let gutterW = display.gutters.offsetWidth, left = comp + "px"
+  for (let i = 0; i < view.length; i++) if (!view[i].hidden) {
+    if (cm.options.fixedGutter) {
+      if (view[i].gutter)
+        view[i].gutter.style.left = left
+      if (view[i].gutterBackground)
+        view[i].gutterBackground.style.left = left
+    }
+    let align = view[i].alignable
+    if (align) for (let j = 0; j < align.length; j++)
+      align[j].style.left = left
+  }
+  if (cm.options.fixedGutter)
+    display.gutters.style.left = (comp + gutterW) + "px"
+}
+
+// Used to ensure that the line number gutter is still the right
+// size for the current document size. Returns true when an update
+// is needed.
+export function maybeUpdateLineNumberWidth(cm) {
+  if (!cm.options.lineNumbers) return false
+  let doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display
+  if (last.length != display.lineNumChars) {
+    let test = display.measure.appendChild(elt("div", [elt("div", last)],
+                                               "CodeMirror-linenumber CodeMirror-gutter-elt"))
+    let innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW
+    display.lineGutter.style.width = ""
+    display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1
+    display.lineNumWidth = display.lineNumInnerWidth + padding
+    display.lineNumChars = display.lineNumInnerWidth ? last.length : -1
+    display.lineGutter.style.width = display.lineNumWidth + "px"
+    updateGutterSpace(cm)
+    return true
+  }
+  return false
+}
diff --git a/public/codemirror/src/display/mode_state.js b/public/codemirror/src/display/mode_state.js
new file mode 100644
index 000000000..8c4c60b05
--- /dev/null
+++ b/public/codemirror/src/display/mode_state.js
@@ -0,0 +1,22 @@
+import { getMode } from "../modes"
+
+import { startWorker } from "./highlight_worker"
+import { regChange } from "./view_tracking"
+
+// Used to get the editor into a consistent state again when options change.
+
+export function loadMode(cm) {
+  cm.doc.mode = getMode(cm.options, cm.doc.modeOption)
+  resetModeState(cm)
+}
+
+export function resetModeState(cm) {
+  cm.doc.iter(line => {
+    if (line.stateAfter) line.stateAfter = null
+    if (line.styles) line.styles = null
+  })
+  cm.doc.frontier = cm.doc.first
+  startWorker(cm, 100)
+  cm.state.modeGen++
+  if (cm.curOp) regChange(cm)
+}
diff --git a/public/codemirror/src/display/operations.js b/public/codemirror/src/display/operations.js
new file mode 100644
index 000000000..6c4a0e139
--- /dev/null
+++ b/public/codemirror/src/display/operations.js
@@ -0,0 +1,215 @@
+import { clipPos } from "../line/pos"
+import { findMaxLine } from "../line/spans"
+import { displayWidth, measureChar, scrollGap } from "../measurement/position_measurement"
+import { signal } from "../util/event"
+import { activeElt } from "../util/dom"
+import { finishOperation, pushOperation } from "../util/operation_group"
+
+import { ensureFocus } from "./focus"
+import { alignHorizontally } from "./line_numbers"
+import { measureForScrollbars, updateScrollbars } from "./scrollbars"
+import { setScrollLeft } from "./scroll_events"
+import { restartBlink } from "./selection"
+import { maybeScrollWindow, scrollPosIntoView } from "./scrolling"
+import { DisplayUpdate, maybeClipScrollbars, postUpdateDisplay, setDocumentHeight, updateDisplayIfNeeded } from "./update_display"
+import { updateHeightsInViewport } from "./update_lines"
+
+// Operations are used to wrap a series of changes to the editor
+// state in such a way that each change won't have to update the
+// cursor and display (which would be awkward, slow, and
+// error-prone). Instead, display updates are batched and then all
+// combined and executed at once.
+
+let nextOpId = 0
+// Start a new operation.
+export function startOperation(cm) {
+  cm.curOp = {
+    cm: cm,
+    viewChanged: false,      // Flag that indicates that lines might need to be redrawn
+    startHeight: cm.doc.height, // Used to detect need to update scrollbar
+    forceUpdate: false,      // Used to force a redraw
+    updateInput: null,       // Whether to reset the input textarea
+    typing: false,           // Whether this reset should be careful to leave existing text (for compositing)
+    changeObjs: null,        // Accumulated changes, for firing change events
+    cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on
+    cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already
+    selectionChanged: false, // Whether the selection needs to be redrawn
+    updateMaxLine: false,    // Set when the widest line needs to be determined anew
+    scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet
+    scrollToPos: null,       // Used to scroll to a specific position
+    focus: false,
+    id: ++nextOpId           // Unique ID
+  }
+  pushOperation(cm.curOp)
+}
+
+// Finish an operation, updating the display and signalling delayed events
+export function endOperation(cm) {
+  let op = cm.curOp
+  finishOperation(op, group => {
+    for (let i = 0; i < group.ops.length; i++)
+      group.ops[i].cm.curOp = null
+    endOperations(group)
+  })
+}
+
+// The DOM updates done when an operation finishes are batched so
+// that the minimum number of relayouts are required.
+function endOperations(group) {
+  let ops = group.ops
+  for (let i = 0; i < ops.length; i++) // Read DOM
+    endOperation_R1(ops[i])
+  for (let i = 0; i < ops.length; i++) // Write DOM (maybe)
+    endOperation_W1(ops[i])
+  for (let i = 0; i < ops.length; i++) // Read DOM
+    endOperation_R2(ops[i])
+  for (let i = 0; i < ops.length; i++) // Write DOM (maybe)
+    endOperation_W2(ops[i])
+  for (let i = 0; i < ops.length; i++) // Read DOM
+    endOperation_finish(ops[i])
+}
+
+function endOperation_R1(op) {
+  let cm = op.cm, display = cm.display
+  maybeClipScrollbars(cm)
+  if (op.updateMaxLine) findMaxLine(cm)
+
+  op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null ||
+    op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom ||
+                       op.scrollToPos.to.line >= display.viewTo) ||
+    display.maxLineChanged && cm.options.lineWrapping
+  op.update = op.mustUpdate &&
+    new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate)
+}
+
+function endOperation_W1(op) {
+  op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update)
+}
+
+function endOperation_R2(op) {
+  let cm = op.cm, display = cm.display
+  if (op.updatedDisplay) updateHeightsInViewport(cm)
+
+  op.barMeasure = measureForScrollbars(cm)
+
+  // If the max line changed since it was last measured, measure it,
+  // and ensure the document's width matches it.
+  // updateDisplay_W2 will use these properties to do the actual resizing
+  if (display.maxLineChanged && !cm.options.lineWrapping) {
+    op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3
+    cm.display.sizerWidth = op.adjustWidthTo
+    op.barMeasure.scrollWidth =
+      Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth)
+    op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm))
+  }
+
+  if (op.updatedDisplay || op.selectionChanged)
+    op.preparedSelection = display.input.prepareSelection(op.focus)
+}
+
+function endOperation_W2(op) {
+  let cm = op.cm
+
+  if (op.adjustWidthTo != null) {
+    cm.display.sizer.style.minWidth = op.adjustWidthTo + "px"
+    if (op.maxScrollLeft < cm.doc.scrollLeft)
+      setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true)
+    cm.display.maxLineChanged = false
+  }
+
+  let takeFocus = op.focus && op.focus == activeElt() && (!document.hasFocus || document.hasFocus())
+  if (op.preparedSelection)
+    cm.display.input.showSelection(op.preparedSelection, takeFocus)
+  if (op.updatedDisplay || op.startHeight != cm.doc.height)
+    updateScrollbars(cm, op.barMeasure)
+  if (op.updatedDisplay)
+    setDocumentHeight(cm, op.barMeasure)
+
+  if (op.selectionChanged) restartBlink(cm)
+
+  if (cm.state.focused && op.updateInput)
+    cm.display.input.reset(op.typing)
+  if (takeFocus) ensureFocus(op.cm)
+}
+
+function endOperation_finish(op) {
+  let cm = op.cm, display = cm.display, doc = cm.doc
+
+  if (op.updatedDisplay) postUpdateDisplay(cm, op.update)
+
+  // Abort mouse wheel delta measurement, when scrolling explicitly
+  if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos))
+    display.wheelStartX = display.wheelStartY = null
+
+  // Propagate the scroll position to the actual DOM scroller
+  if (op.scrollTop != null && (display.scroller.scrollTop != op.scrollTop || op.forceScroll)) {
+    doc.scrollTop = Math.max(0, Math.min(display.scroller.scrollHeight - display.scroller.clientHeight, op.scrollTop))
+    display.scrollbars.setScrollTop(doc.scrollTop)
+    display.scroller.scrollTop = doc.scrollTop
+  }
+  if (op.scrollLeft != null && (display.scroller.scrollLeft != op.scrollLeft || op.forceScroll)) {
+    doc.scrollLeft = Math.max(0, Math.min(display.scroller.scrollWidth - display.scroller.clientWidth, op.scrollLeft))
+    display.scrollbars.setScrollLeft(doc.scrollLeft)
+    display.scroller.scrollLeft = doc.scrollLeft
+    alignHorizontally(cm)
+  }
+  // If we need to scroll a specific position into view, do so.
+  if (op.scrollToPos) {
+    let rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from),
+                                 clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin)
+    maybeScrollWindow(cm, rect)
+  }
+
+  // Fire events for markers that are hidden/unidden by editing or
+  // undoing
+  let hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers
+  if (hidden) for (let i = 0; i < hidden.length; ++i)
+    if (!hidden[i].lines.length) signal(hidden[i], "hide")
+  if (unhidden) for (let i = 0; i < unhidden.length; ++i)
+    if (unhidden[i].lines.length) signal(unhidden[i], "unhide")
+
+  if (display.wrapper.offsetHeight)
+    doc.scrollTop = cm.display.scroller.scrollTop
+
+  // Fire change events, and delayed event handlers
+  if (op.changeObjs)
+    signal(cm, "changes", cm, op.changeObjs)
+  if (op.update)
+    op.update.finish()
+}
+
+// Run the given function in an operation
+export function runInOp(cm, f) {
+  if (cm.curOp) return f()
+  startOperation(cm)
+  try { return f() }
+  finally { endOperation(cm) }
+}
+// Wraps a function in an operation. Returns the wrapped function.
+export function operation(cm, f) {
+  return function() {
+    if (cm.curOp) return f.apply(cm, arguments)
+    startOperation(cm)
+    try { return f.apply(cm, arguments) }
+    finally { endOperation(cm) }
+  }
+}
+// Used to add methods to editor and doc instances, wrapping them in
+// operations.
+export function methodOp(f) {
+  return function() {
+    if (this.curOp) return f.apply(this, arguments)
+    startOperation(this)
+    try { return f.apply(this, arguments) }
+    finally { endOperation(this) }
+  }
+}
+export function docMethodOp(f) {
+  return function() {
+    let cm = this.cm
+    if (!cm || cm.curOp) return f.apply(this, arguments)
+    startOperation(cm)
+    try { return f.apply(this, arguments) }
+    finally { endOperation(cm) }
+  }
+}
diff --git a/public/codemirror/src/display/scroll_events.js b/public/codemirror/src/display/scroll_events.js
new file mode 100644
index 000000000..e85d2a02f
--- /dev/null
+++ b/public/codemirror/src/display/scroll_events.js
@@ -0,0 +1,138 @@
+import { chrome, gecko, ie, mac, presto, safari, webkit } from "../util/browser"
+import { e_preventDefault } from "../util/event"
+
+import { startWorker } from "./highlight_worker"
+import { alignHorizontally } from "./line_numbers"
+import { updateDisplaySimple} from "./update_display"
+
+// Sync the scrollable area and scrollbars, ensure the viewport
+// covers the visible area.
+export function setScrollTop(cm, val) {
+  if (Math.abs(cm.doc.scrollTop - val) < 2) return
+  cm.doc.scrollTop = val
+  if (!gecko) updateDisplaySimple(cm, {top: val})
+  if (cm.display.scroller.scrollTop != val) cm.display.scroller.scrollTop = val
+  cm.display.scrollbars.setScrollTop(val)
+  if (gecko) updateDisplaySimple(cm)
+  startWorker(cm, 100)
+}
+// Sync scroller and scrollbar, ensure the gutter elements are
+// aligned.
+export function setScrollLeft(cm, val, isScroller) {
+  if (isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) return
+  val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth)
+  cm.doc.scrollLeft = val
+  alignHorizontally(cm)
+  if (cm.display.scroller.scrollLeft != val) cm.display.scroller.scrollLeft = val
+  cm.display.scrollbars.setScrollLeft(val)
+}
+
+// Since the delta values reported on mouse wheel events are
+// unstandardized between browsers and even browser versions, and
+// generally horribly unpredictable, this code starts by measuring
+// the scroll effect that the first few mouse wheel events have,
+// and, from that, detects the way it can convert deltas to pixel
+// offsets afterwards.
+//
+// The reason we want to know the amount a wheel event will scroll
+// is that it gives us a chance to update the display before the
+// actual scrolling happens, reducing flickering.
+
+let wheelSamples = 0, wheelPixelsPerUnit = null
+// Fill in a browser-detected starting value on browsers where we
+// know one. These don't have to be accurate -- the result of them
+// being wrong would just be a slight flicker on the first wheel
+// scroll (if it is large enough).
+if (ie) wheelPixelsPerUnit = -.53
+else if (gecko) wheelPixelsPerUnit = 15
+else if (chrome) wheelPixelsPerUnit = -.7
+else if (safari) wheelPixelsPerUnit = -1/3
+
+function wheelEventDelta(e) {
+  let dx = e.wheelDeltaX, dy = e.wheelDeltaY
+  if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) dx = e.detail
+  if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) dy = e.detail
+  else if (dy == null) dy = e.wheelDelta
+  return {x: dx, y: dy}
+}
+export function wheelEventPixels(e) {
+  let delta = wheelEventDelta(e)
+  delta.x *= wheelPixelsPerUnit
+  delta.y *= wheelPixelsPerUnit
+  return delta
+}
+
+export function onScrollWheel(cm, e) {
+  let delta = wheelEventDelta(e), dx = delta.x, dy = delta.y
+
+  let display = cm.display, scroll = display.scroller
+  // Quit if there's nothing to scroll here
+  let canScrollX = scroll.scrollWidth > scroll.clientWidth
+  let canScrollY = scroll.scrollHeight > scroll.clientHeight
+  if (!(dx && canScrollX || dy && canScrollY)) return
+
+  // Webkit browsers on OS X abort momentum scrolls when the target
+  // of the scroll event is removed from the scrollable element.
+  // This hack (see related code in patchDisplay) makes sure the
+  // element is kept around.
+  if (dy && mac && webkit) {
+    outer: for (let cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) {
+      for (let i = 0; i < view.length; i++) {
+        if (view[i].node == cur) {
+          cm.display.currentWheelTarget = cur
+          break outer
+        }
+      }
+    }
+  }
+
+  // On some browsers, horizontal scrolling will cause redraws to
+  // happen before the gutter has been realigned, causing it to
+  // wriggle around in a most unseemly way. When we have an
+  // estimated pixels/delta value, we just handle horizontal
+  // scrolling entirely here. It'll be slightly off from native, but
+  // better than glitching out.
+  if (dx && !gecko && !presto && wheelPixelsPerUnit != null) {
+    if (dy && canScrollY)
+      setScrollTop(cm, Math.max(0, Math.min(scroll.scrollTop + dy * wheelPixelsPerUnit, scroll.scrollHeight - scroll.clientHeight)))
+    setScrollLeft(cm, Math.max(0, Math.min(scroll.scrollLeft + dx * wheelPixelsPerUnit, scroll.scrollWidth - scroll.clientWidth)))
+    // Only prevent default scrolling if vertical scrolling is
+    // actually possible. Otherwise, it causes vertical scroll
+    // jitter on OSX trackpads when deltaX is small and deltaY
+    // is large (issue #3579)
+    if (!dy || (dy && canScrollY))
+      e_preventDefault(e)
+    display.wheelStartX = null // Abort measurement, if in progress
+    return
+  }
+
+  // 'Project' the visible viewport to cover the area that is being
+  // scrolled into view (if we know enough to estimate it).
+  if (dy && wheelPixelsPerUnit != null) {
+    let pixels = dy * wheelPixelsPerUnit
+    let top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight
+    if (pixels < 0) top = Math.max(0, top + pixels - 50)
+    else bot = Math.min(cm.doc.height, bot + pixels + 50)
+    updateDisplaySimple(cm, {top: top, bottom: bot})
+  }
+
+  if (wheelSamples < 20) {
+    if (display.wheelStartX == null) {
+      display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop
+      display.wheelDX = dx; display.wheelDY = dy
+      setTimeout(() => {
+        if (display.wheelStartX == null) return
+        let movedX = scroll.scrollLeft - display.wheelStartX
+        let movedY = scroll.scrollTop - display.wheelStartY
+        let sample = (movedY && display.wheelDY && movedY / display.wheelDY) ||
+          (movedX && display.wheelDX && movedX / display.wheelDX)
+        display.wheelStartX = display.wheelStartY = null
+        if (!sample) return
+        wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1)
+        ++wheelSamples
+      }, 200)
+    } else {
+      display.wheelDX += dx; display.wheelDY += dy
+    }
+  }
+}
diff --git a/public/codemirror/src/display/scrollbars.js b/public/codemirror/src/display/scrollbars.js
new file mode 100644
index 000000000..d03850be0
--- /dev/null
+++ b/public/codemirror/src/display/scrollbars.js
@@ -0,0 +1,191 @@
+import { addClass, elt, rmClass } from "../util/dom"
+import { on } from "../util/event"
+import { scrollGap, paddingVert } from "../measurement/position_measurement"
+import { ie, ie_version, mac, mac_geMountainLion } from "../util/browser"
+import { updateHeightsInViewport } from "./update_lines"
+import { Delayed } from "../util/misc"
+
+import { setScrollLeft, setScrollTop } from "./scroll_events"
+
+// SCROLLBARS
+
+// Prepare DOM reads needed to update the scrollbars. Done in one
+// shot to minimize update/measure roundtrips.
+export function measureForScrollbars(cm) {
+  let d = cm.display, gutterW = d.gutters.offsetWidth
+  let docH = Math.round(cm.doc.height + paddingVert(cm.display))
+  return {
+    clientHeight: d.scroller.clientHeight,
+    viewHeight: d.wrapper.clientHeight,
+    scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth,
+    viewWidth: d.wrapper.clientWidth,
+    barLeft: cm.options.fixedGutter ? gutterW : 0,
+    docHeight: docH,
+    scrollHeight: docH + scrollGap(cm) + d.barHeight,
+    nativeBarWidth: d.nativeBarWidth,
+    gutterWidth: gutterW
+  }
+}
+
+class NativeScrollbars {
+  constructor(place, scroll, cm) {
+    this.cm = cm
+    let vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar")
+    let horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar")
+    place(vert); place(horiz)
+
+    on(vert, "scroll", () => {
+      if (vert.clientHeight) scroll(vert.scrollTop, "vertical")
+    })
+    on(horiz, "scroll", () => {
+      if (horiz.clientWidth) scroll(horiz.scrollLeft, "horizontal")
+    })
+
+    this.checkedZeroWidth = false
+    // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8).
+    if (ie && ie_version < 8) this.horiz.style.minHeight = this.vert.style.minWidth = "18px"
+  }
+
+  update(measure) {
+    let needsH = measure.scrollWidth > measure.clientWidth + 1
+    let needsV = measure.scrollHeight > measure.clientHeight + 1
+    let sWidth = measure.nativeBarWidth
+
+    if (needsV) {
+      this.vert.style.display = "block"
+      this.vert.style.bottom = needsH ? sWidth + "px" : "0"
+      let totalHeight = measure.viewHeight - (needsH ? sWidth : 0)
+      // A bug in IE8 can cause this value to be negative, so guard it.
+      this.vert.firstChild.style.height =
+        Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px"
+    } else {
+      this.vert.style.display = ""
+      this.vert.firstChild.style.height = "0"
+    }
+
+    if (needsH) {
+      this.horiz.style.display = "block"
+      this.horiz.style.right = needsV ? sWidth + "px" : "0"
+      this.horiz.style.left = measure.barLeft + "px"
+      let totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0)
+      this.horiz.firstChild.style.width =
+        Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + "px"
+    } else {
+      this.horiz.style.display = ""
+      this.horiz.firstChild.style.width = "0"
+    }
+
+    if (!this.checkedZeroWidth && measure.clientHeight > 0) {
+      if (sWidth == 0) this.zeroWidthHack()
+      this.checkedZeroWidth = true
+    }
+
+    return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0}
+  }
+
+  setScrollLeft(pos) {
+    if (this.horiz.scrollLeft != pos) this.horiz.scrollLeft = pos
+    if (this.disableHoriz) this.enableZeroWidthBar(this.horiz, this.disableHoriz)
+  }
+
+  setScrollTop(pos) {
+    if (this.vert.scrollTop != pos) this.vert.scrollTop = pos
+    if (this.disableVert) this.enableZeroWidthBar(this.vert, this.disableVert)
+  }
+
+  zeroWidthHack() {
+    let w = mac && !mac_geMountainLion ? "12px" : "18px"
+    this.horiz.style.height = this.vert.style.width = w
+    this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none"
+    this.disableHoriz = new Delayed
+    this.disableVert = new Delayed
+  }
+
+  enableZeroWidthBar(bar, delay) {
+    bar.style.pointerEvents = "auto"
+    function maybeDisable() {
+      // To find out whether the scrollbar is still visible, we
+      // check whether the element under the pixel in the bottom
+      // left corner of the scrollbar box is the scrollbar box
+      // itself (when the bar is still visible) or its filler child
+      // (when the bar is hidden). If it is still visible, we keep
+      // it enabled, if it's hidden, we disable pointer events.
+      let box = bar.getBoundingClientRect()
+      let elt = document.elementFromPoint(box.left + 1, box.bottom - 1)
+      if (elt != bar) bar.style.pointerEvents = "none"
+      else delay.set(1000, maybeDisable)
+    }
+    delay.set(1000, maybeDisable)
+  }
+
+  clear() {
+    let parent = this.horiz.parentNode
+    parent.removeChild(this.horiz)
+    parent.removeChild(this.vert)
+  }
+}
+
+class NullScrollbars {
+  update() { return {bottom: 0, right: 0} }
+  setScrollLeft() {}
+  setScrollTop() {}
+  clear() {}
+}
+
+export function updateScrollbars(cm, measure) {
+  if (!measure) measure = measureForScrollbars(cm)
+  let startWidth = cm.display.barWidth, startHeight = cm.display.barHeight
+  updateScrollbarsInner(cm, measure)
+  for (let i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) {
+    if (startWidth != cm.display.barWidth && cm.options.lineWrapping)
+      updateHeightsInViewport(cm)
+    updateScrollbarsInner(cm, measureForScrollbars(cm))
+    startWidth = cm.display.barWidth; startHeight = cm.display.barHeight
+  }
+}
+
+// Re-synchronize the fake scrollbars with the actual size of the
+// content.
+function updateScrollbarsInner(cm, measure) {
+  let d = cm.display
+  let sizes = d.scrollbars.update(measure)
+
+  d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px"
+  d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px"
+  d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent"
+
+  if (sizes.right && sizes.bottom) {
+    d.scrollbarFiller.style.display = "block"
+    d.scrollbarFiller.style.height = sizes.bottom + "px"
+    d.scrollbarFiller.style.width = sizes.right + "px"
+  } else d.scrollbarFiller.style.display = ""
+  if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) {
+    d.gutterFiller.style.display = "block"
+    d.gutterFiller.style.height = sizes.bottom + "px"
+    d.gutterFiller.style.width = measure.gutterWidth + "px"
+  } else d.gutterFiller.style.display = ""
+}
+
+export let scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars}
+
+export function initScrollbars(cm) {
+  if (cm.display.scrollbars) {
+    cm.display.scrollbars.clear()
+    if (cm.display.scrollbars.addClass)
+      rmClass(cm.display.wrapper, cm.display.scrollbars.addClass)
+  }
+
+  cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](node => {
+    cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller)
+    // Prevent clicks in the scrollbars from killing focus
+    on(node, "mousedown", () => {
+      if (cm.state.focused) setTimeout(() => cm.display.input.focus(), 0)
+    })
+    node.setAttribute("cm-not-content", "true")
+  }, (pos, axis) => {
+    if (axis == "horizontal") setScrollLeft(cm, pos)
+    else setScrollTop(cm, pos)
+  }, cm)
+  if (cm.display.scrollbars.addClass)
+    addClass(cm.display.wrapper, cm.display.scrollbars.addClass)
+}
diff --git a/public/codemirror/src/display/scrolling.js b/public/codemirror/src/display/scrolling.js
new file mode 100644
index 000000000..b2deb2ed6
--- /dev/null
+++ b/public/codemirror/src/display/scrolling.js
@@ -0,0 +1,137 @@
+import { Pos } from "../line/pos"
+import { cursorCoords, displayHeight, displayWidth, estimateCoords, paddingTop, paddingVert, scrollGap, textHeight } from "../measurement/position_measurement"
+import { phantom } from "../util/browser"
+import { elt } from "../util/dom"
+import { signalDOMEvent } from "../util/event"
+
+import { setScrollLeft, setScrollTop } from "./scroll_events"
+
+// SCROLLING THINGS INTO VIEW
+
+// If an editor sits on the top or bottom of the window, partially
+// scrolled out of view, this ensures that the cursor is visible.
+export function maybeScrollWindow(cm, rect) {
+  if (signalDOMEvent(cm, "scrollCursorIntoView")) return
+
+  let display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null
+  if (rect.top + box.top < 0) doScroll = true
+  else if (rect.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) doScroll = false
+  if (doScroll != null && !phantom) {
+    let scrollNode = elt("div", "\u200b", null, `position: absolute;
+                         top: ${rect.top - display.viewOffset - paddingTop(cm.display)}px;
+                         height: ${rect.bottom - rect.top + scrollGap(cm) + display.barHeight}px;
+                         left: ${rect.left}px; width: ${Math.max(2, rect.right - rect.left)}px;`)
+    cm.display.lineSpace.appendChild(scrollNode)
+    scrollNode.scrollIntoView(doScroll)
+    cm.display.lineSpace.removeChild(scrollNode)
+  }
+}
+
+// Scroll a given position into view (immediately), verifying that
+// it actually became visible (as line heights are accurately
+// measured, the position of something may 'drift' during drawing).
+export function scrollPosIntoView(cm, pos, end, margin) {
+  if (margin == null) margin = 0
+  let rect
+  for (let limit = 0; limit < 5; limit++) {
+    let changed = false
+    let coords = cursorCoords(cm, pos)
+    let endCoords = !end || end == pos ? coords : cursorCoords(cm, end)
+    rect = {left: Math.min(coords.left, endCoords.left),
+            top: Math.min(coords.top, endCoords.top) - margin,
+            right: Math.max(coords.left, endCoords.left),
+            bottom: Math.max(coords.bottom, endCoords.bottom) + margin}
+    let scrollPos = calculateScrollPos(cm, rect)
+    let startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft
+    if (scrollPos.scrollTop != null) {
+      setScrollTop(cm, scrollPos.scrollTop)
+      if (Math.abs(cm.doc.scrollTop - startTop) > 1) changed = true
+    }
+    if (scrollPos.scrollLeft != null) {
+      setScrollLeft(cm, scrollPos.scrollLeft)
+      if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) changed = true
+    }
+    if (!changed) break
+  }
+  return rect
+}
+
+// Scroll a given set of coordinates into view (immediately).
+export function scrollIntoView(cm, rect) {
+  let scrollPos = calculateScrollPos(cm, rect)
+  if (scrollPos.scrollTop != null) setScrollTop(cm, scrollPos.scrollTop)
+  if (scrollPos.scrollLeft != null) setScrollLeft(cm, scrollPos.scrollLeft)
+}
+
+// Calculate a new scroll position needed to scroll the given
+// rectangle into view. Returns an object with scrollTop and
+// scrollLeft properties. When these are undefined, the
+// vertical/horizontal position does not need to be adjusted.
+export function calculateScrollPos(cm, rect) {
+  let display = cm.display, snapMargin = textHeight(cm.display)
+  if (rect.top < 0) rect.top = 0
+  let screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop
+  let screen = displayHeight(cm), result = {}
+  if (rect.bottom - rect.top > screen) rect.bottom = rect.top + screen
+  let docBottom = cm.doc.height + paddingVert(display)
+  let atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin
+  if (rect.top < screentop) {
+    result.scrollTop = atTop ? 0 : rect.top
+  } else if (rect.bottom > screentop + screen) {
+    let newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen)
+    if (newTop != screentop) result.scrollTop = newTop
+  }
+
+  let screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft
+  let screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0)
+  let tooWide = rect.right - rect.left > screenw
+  if (tooWide) rect.right = rect.left + screenw
+  if (rect.left < 10)
+    result.scrollLeft = 0
+  else if (rect.left < screenleft)
+    result.scrollLeft = Math.max(0, rect.left - (tooWide ? 0 : 10))
+  else if (rect.right > screenw + screenleft - 3)
+    result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw
+  return result
+}
+
+// Store a relative adjustment to the scroll position in the current
+// operation (to be applied when the operation finishes).
+export function addToScrollPos(cm, left, top) {
+  if (left != null || top != null) resolveScrollToPos(cm)
+  if (left != null)
+    cm.curOp.scrollLeft = (cm.curOp.scrollLeft == null ? cm.doc.scrollLeft : cm.curOp.scrollLeft) + left
+  if (top != null)
+    cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top
+}
+
+// Make sure that at the end of the operation the current cursor is
+// shown.
+export function ensureCursorVisible(cm) {
+  resolveScrollToPos(cm)
+  let cur = cm.getCursor(), from = cur, to = cur
+  if (!cm.options.lineWrapping) {
+    from = cur.ch ? Pos(cur.line, cur.ch - 1) : cur
+    to = Pos(cur.line, cur.ch + 1)
+  }
+  cm.curOp.scrollToPos = {from: from, to: to, margin: cm.options.cursorScrollMargin}
+}
+
+// When an operation has its scrollToPos property set, and another
+// scroll action is applied before the end of the operation, this
+// 'simulates' scrolling that position into view in a cheap way, so
+// that the effect of intermediate scroll commands is not ignored.
+export function resolveScrollToPos(cm) {
+  let range = cm.curOp.scrollToPos
+  if (range) {
+    cm.curOp.scrollToPos = null
+    let from = estimateCoords(cm, range.from), to = estimateCoords(cm, range.to)
+    let sPos = calculateScrollPos(cm, {
+      left: Math.min(from.left, to.left),
+      top: Math.min(from.top, to.top) - range.margin,
+      right: Math.max(from.right, to.right),
+      bottom: Math.max(from.bottom, to.bottom) + range.margin
+    })
+    cm.scrollTo(sPos.scrollLeft, sPos.scrollTop)
+  }
+}
diff --git a/public/codemirror/src/display/selection.js b/public/codemirror/src/display/selection.js
new file mode 100644
index 000000000..d9b69d492
--- /dev/null
+++ b/public/codemirror/src/display/selection.js
@@ -0,0 +1,136 @@
+import { Pos } from "../line/pos"
+import { visualLine } from "../line/spans"
+import { getLine } from "../line/utils_line"
+import { charCoords, cursorCoords, displayWidth, paddingH } from "../measurement/position_measurement"
+import { getOrder, iterateBidiSections } from "../util/bidi"
+import { elt } from "../util/dom"
+
+export function updateSelection(cm) {
+  cm.display.input.showSelection(cm.display.input.prepareSelection())
+}
+
+export function prepareSelection(cm, primary) {
+  let doc = cm.doc, result = {}
+  let curFragment = result.cursors = document.createDocumentFragment()
+  let selFragment = result.selection = document.createDocumentFragment()
+
+  for (let i = 0; i < doc.sel.ranges.length; i++) {
+    if (primary === false && i == doc.sel.primIndex) continue
+    let range = doc.sel.ranges[i]
+    if (range.from().line >= cm.display.viewTo || range.to().line < cm.display.viewFrom) continue
+    let collapsed = range.empty()
+    if (collapsed || cm.options.showCursorWhenSelecting)
+      drawSelectionCursor(cm, range.head, curFragment)
+    if (!collapsed)
+      drawSelectionRange(cm, range, selFragment)
+  }
+  return result
+}
+
+// Draws a cursor for the given range
+export function drawSelectionCursor(cm, head, output) {
+  let pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine)
+
+  let cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor"))
+  cursor.style.left = pos.left + "px"
+  cursor.style.top = pos.top + "px"
+  cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px"
+
+  if (pos.other) {
+    // Secondary cursor, shown when on a 'jump' in bi-directional text
+    let otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor"))
+    otherCursor.style.display = ""
+    otherCursor.style.left = pos.other.left + "px"
+    otherCursor.style.top = pos.other.top + "px"
+    otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px"
+  }
+}
+
+// Draws the given range as a highlighted selection
+function drawSelectionRange(cm, range, output) {
+  let display = cm.display, doc = cm.doc
+  let fragment = document.createDocumentFragment()
+  let padding = paddingH(cm.display), leftSide = padding.left
+  let rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right
+
+  function add(left, top, width, bottom) {
+    if (top < 0) top = 0
+    top = Math.round(top)
+    bottom = Math.round(bottom)
+    fragment.appendChild(elt("div", null, "CodeMirror-selected", `position: absolute; left: ${left}px;
+                             top: ${top}px; width: ${width == null ? rightSide - left : width}px;
+                             height: ${bottom - top}px`))
+  }
+
+  function drawForLine(line, fromArg, toArg) {
+    let lineObj = getLine(doc, line)
+    let lineLen = lineObj.text.length
+    let start, end
+    function coords(ch, bias) {
+      return charCoords(cm, Pos(line, ch), "div", lineObj, bias)
+    }
+
+    iterateBidiSections(getOrder(lineObj, doc.direction), fromArg || 0, toArg == null ? lineLen : toArg, (from, to, dir) => {
+      let leftPos = coords(from, "left"), rightPos, left, right
+      if (from == to) {
+        rightPos = leftPos
+        left = right = leftPos.left
+      } else {
+        rightPos = coords(to - 1, "right")
+        if (dir == "rtl") { let tmp = leftPos; leftPos = rightPos; rightPos = tmp }
+        left = leftPos.left
+        right = rightPos.right
+      }
+      if (fromArg == null && from == 0) left = leftSide
+      if (rightPos.top - leftPos.top > 3) { // Different lines, draw top part
+        add(left, leftPos.top, null, leftPos.bottom)
+        left = leftSide
+        if (leftPos.bottom < rightPos.top) add(left, leftPos.bottom, null, rightPos.top)
+      }
+      if (toArg == null && to == lineLen) right = rightSide
+      if (!start || leftPos.top < start.top || leftPos.top == start.top && leftPos.left < start.left)
+        start = leftPos
+      if (!end || rightPos.bottom > end.bottom || rightPos.bottom == end.bottom && rightPos.right > end.right)
+        end = rightPos
+      if (left < leftSide + 1) left = leftSide
+      add(left, rightPos.top, right - left, rightPos.bottom)
+    })
+    return {start: start, end: end}
+  }
+
+  let sFrom = range.from(), sTo = range.to()
+  if (sFrom.line == sTo.line) {
+    drawForLine(sFrom.line, sFrom.ch, sTo.ch)
+  } else {
+    let fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line)
+    let singleVLine = visualLine(fromLine) == visualLine(toLine)
+    let leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end
+    let rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start
+    if (singleVLine) {
+      if (leftEnd.top < rightStart.top - 2) {
+        add(leftEnd.right, leftEnd.top, null, leftEnd.bottom)
+        add(leftSide, rightStart.top, rightStart.left, rightStart.bottom)
+      } else {
+        add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom)
+      }
+    }
+    if (leftEnd.bottom < rightStart.top)
+      add(leftSide, leftEnd.bottom, null, rightStart.top)
+  }
+
+  output.appendChild(fragment)
+}
+
+// Cursor-blinking
+export function restartBlink(cm) {
+  if (!cm.state.focused) return
+  let display = cm.display
+  clearInterval(display.blinker)
+  let on = true
+  display.cursorDiv.style.visibility = ""
+  if (cm.options.cursorBlinkRate > 0)
+    display.blinker = setInterval(() => display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden",
+      cm.options.cursorBlinkRate)
+  else if (cm.options.cursorBlinkRate < 0)
+    display.cursorDiv.style.visibility = "hidden"
+}
diff --git a/public/codemirror/src/display/update_display.js b/public/codemirror/src/display/update_display.js
new file mode 100644
index 000000000..17d5a069e
--- /dev/null
+++ b/public/codemirror/src/display/update_display.js
@@ -0,0 +1,229 @@
+import { sawCollapsedSpans } from "../line/saw_special_spans"
+import { heightAtLine, visualLineEndNo, visualLineNo } from "../line/spans"
+import { getLine, lineNumberFor } from "../line/utils_line"
+import { displayHeight, displayWidth, getDimensions, paddingVert, scrollGap } from "../measurement/position_measurement"
+import { mac, webkit } from "../util/browser"
+import { activeElt, removeChildren } from "../util/dom"
+import { hasHandler, signal } from "../util/event"
+import { indexOf } from "../util/misc"
+
+import { buildLineElement, updateLineForChanges } from "./update_line"
+import { startWorker } from "./highlight_worker"
+import { maybeUpdateLineNumberWidth } from "./line_numbers"
+import { measureForScrollbars, updateScrollbars } from "./scrollbars"
+import { updateSelection } from "./selection"
+import { updateHeightsInViewport, visibleLines } from "./update_lines"
+import { adjustView, countDirtyView, resetView } from "./view_tracking"
+
+// DISPLAY DRAWING
+
+export class DisplayUpdate {
+  constructor(cm, viewport, force) {
+    let display = cm.display
+
+    this.viewport = viewport
+    // Store some values that we'll need later (but don't want to force a relayout for)
+    this.visible = visibleLines(display, cm.doc, viewport)
+    this.editorIsHidden = !display.wrapper.offsetWidth
+    this.wrapperHeight = display.wrapper.clientHeight
+    this.wrapperWidth = display.wrapper.clientWidth
+    this.oldDisplayWidth = displayWidth(cm)
+    this.force = force
+    this.dims = getDimensions(cm)
+    this.events = []
+  }
+
+  signal(emitter, type) {
+    if (hasHandler(emitter, type))
+      this.events.push(arguments)
+  }
+  finish() {
+    for (let i = 0; i < this.events.length; i++)
+      signal.apply(null, this.events[i])
+  }
+}
+
+export function maybeClipScrollbars(cm) {
+  let display = cm.display
+  if (!display.scrollbarsClipped && display.scroller.offsetWidth) {
+    display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth
+    display.heightForcer.style.height = scrollGap(cm) + "px"
+    display.sizer.style.marginBottom = -display.nativeBarWidth + "px"
+    display.sizer.style.borderRightWidth = scrollGap(cm) + "px"
+    display.scrollbarsClipped = true
+  }
+}
+
+// Does the actual updating of the line display. Bails out
+// (returning false) when there is nothing to be done and forced is
+// false.
+export function updateDisplayIfNeeded(cm, update) {
+  let display = cm.display, doc = cm.doc
+
+  if (update.editorIsHidden) {
+    resetView(cm)
+    return false
+  }
+
+  // Bail out if the visible area is already rendered and nothing changed.
+  if (!update.force &&
+      update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo &&
+      (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) &&
+      display.renderedView == display.view && countDirtyView(cm) == 0)
+    return false
+
+  if (maybeUpdateLineNumberWidth(cm)) {
+    resetView(cm)
+    update.dims = getDimensions(cm)
+  }
+
+  // Compute a suitable new viewport (from & to)
+  let end = doc.first + doc.size
+  let from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first)
+  let to = Math.min(end, update.visible.to + cm.options.viewportMargin)
+  if (display.viewFrom < from && from - display.viewFrom < 20) from = Math.max(doc.first, display.viewFrom)
+  if (display.viewTo > to && display.viewTo - to < 20) to = Math.min(end, display.viewTo)
+  if (sawCollapsedSpans) {
+    from = visualLineNo(cm.doc, from)
+    to = visualLineEndNo(cm.doc, to)
+  }
+
+  let different = from != display.viewFrom || to != display.viewTo ||
+    display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth
+  adjustView(cm, from, to)
+
+  display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom))
+  // Position the mover div to align with the current scroll position
+  cm.display.mover.style.top = display.viewOffset + "px"
+
+  let toUpdate = countDirtyView(cm)
+  if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view &&
+      (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo))
+    return false
+
+  // For big changes, we hide the enclosing element during the
+  // update, since that speeds up the operations on most browsers.
+  let focused = activeElt()
+  if (toUpdate > 4) display.lineDiv.style.display = "none"
+  patchDisplay(cm, display.updateLineNumbers, update.dims)
+  if (toUpdate > 4) display.lineDiv.style.display = ""
+  display.renderedView = display.view
+  // There might have been a widget with a focused element that got
+  // hidden or updated, if so re-focus it.
+  if (focused && activeElt() != focused && focused.offsetHeight) focused.focus()
+
+  // Prevent selection and cursors from interfering with the scroll
+  // width and height.
+  removeChildren(display.cursorDiv)
+  removeChildren(display.selectionDiv)
+  display.gutters.style.height = display.sizer.style.minHeight = 0
+
+  if (different) {
+    display.lastWrapHeight = update.wrapperHeight
+    display.lastWrapWidth = update.wrapperWidth
+    startWorker(cm, 400)
+  }
+
+  display.updateLineNumbers = null
+
+  return true
+}
+
+export function postUpdateDisplay(cm, update) {
+  let viewport = update.viewport
+
+  for (let first = true;; first = false) {
+    if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) {
+      // Clip forced viewport to actual scrollable area.
+      if (viewport && viewport.top != null)
+        viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}
+      // Updated line heights might result in the drawn area not
+      // actually covering the viewport. Keep looping until it does.
+      update.visible = visibleLines(cm.display, cm.doc, viewport)
+      if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo)
+        break
+    }
+    if (!updateDisplayIfNeeded(cm, update)) break
+    updateHeightsInViewport(cm)
+    let barMeasure = measureForScrollbars(cm)
+    updateSelection(cm)
+    updateScrollbars(cm, barMeasure)
+    setDocumentHeight(cm, barMeasure)
+  }
+
+  update.signal(cm, "update", cm)
+  if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) {
+    update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo)
+    cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo
+  }
+}
+
+export function updateDisplaySimple(cm, viewport) {
+  let update = new DisplayUpdate(cm, viewport)
+  if (updateDisplayIfNeeded(cm, update)) {
+    updateHeightsInViewport(cm)
+    postUpdateDisplay(cm, update)
+    let barMeasure = measureForScrollbars(cm)
+    updateSelection(cm)
+    updateScrollbars(cm, barMeasure)
+    setDocumentHeight(cm, barMeasure)
+    update.finish()
+  }
+}
+
+// Sync the actual display DOM structure with display.view, removing
+// nodes for lines that are no longer in view, and creating the ones
+// that are not there yet, and updating the ones that are out of
+// date.
+function patchDisplay(cm, updateNumbersFrom, dims) {
+  let display = cm.display, lineNumbers = cm.options.lineNumbers
+  let container = display.lineDiv, cur = container.firstChild
+
+  function rm(node) {
+    let next = node.nextSibling
+    // Works around a throw-scroll bug in OS X Webkit
+    if (webkit && mac && cm.display.currentWheelTarget == node)
+      node.style.display = "none"
+    else
+      node.parentNode.removeChild(node)
+    return next
+  }
+
+  let view = display.view, lineN = display.viewFrom
+  // Loop over the elements in the view, syncing cur (the DOM nodes
+  // in display.lineDiv) with the view as we go.
+  for (let i = 0; i < view.length; i++) {
+    let lineView = view[i]
+    if (lineView.hidden) {
+    } else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet
+      let node = buildLineElement(cm, lineView, lineN, dims)
+      container.insertBefore(node, cur)
+    } else { // Already drawn
+      while (cur != lineView.node) cur = rm(cur)
+      let updateNumber = lineNumbers && updateNumbersFrom != null &&
+        updateNumbersFrom <= lineN && lineView.lineNumber
+      if (lineView.changes) {
+        if (indexOf(lineView.changes, "gutter") > -1) updateNumber = false
+        updateLineForChanges(cm, lineView, lineN, dims)
+      }
+      if (updateNumber) {
+        removeChildren(lineView.lineNumber)
+        lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN)))
+      }
+      cur = lineView.node.nextSibling
+    }
+    lineN += lineView.size
+  }
+  while (cur) cur = rm(cur)
+}
+
+export function updateGutterSpace(cm) {
+  let width = cm.display.gutters.offsetWidth
+  cm.display.sizer.style.marginLeft = width + "px"
+}
+
+export function setDocumentHeight(cm, measure) {
+  cm.display.sizer.style.minHeight = measure.docHeight + "px"
+  cm.display.heightForcer.style.top = measure.docHeight + "px"
+  cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px"
+}
diff --git a/public/codemirror/src/display/update_line.js b/public/codemirror/src/display/update_line.js
new file mode 100644
index 000000000..15a239425
--- /dev/null
+++ b/public/codemirror/src/display/update_line.js
@@ -0,0 +1,188 @@
+import { buildLineContent } from "../line/line_data"
+import { lineNumberFor } from "../line/utils_line"
+import { ie, ie_version } from "../util/browser"
+import { elt } from "../util/dom"
+import { signalLater } from "../util/operation_group"
+
+// When an aspect of a line changes, a string is added to
+// lineView.changes. This updates the relevant part of the line's
+// DOM structure.
+export function updateLineForChanges(cm, lineView, lineN, dims) {
+  for (let j = 0; j < lineView.changes.length; j++) {
+    let type = lineView.changes[j]
+    if (type == "text") updateLineText(cm, lineView)
+    else if (type == "gutter") updateLineGutter(cm, lineView, lineN, dims)
+    else if (type == "class") updateLineClasses(cm, lineView)
+    else if (type == "widget") updateLineWidgets(cm, lineView, dims)
+  }
+  lineView.changes = null
+}
+
+// Lines with gutter elements, widgets or a background class need to
+// be wrapped, and have the extra elements added to the wrapper div
+function ensureLineWrapped(lineView) {
+  if (lineView.node == lineView.text) {
+    lineView.node = elt("div", null, null, "position: relative")
+    if (lineView.text.parentNode)
+      lineView.text.parentNode.replaceChild(lineView.node, lineView.text)
+    lineView.node.appendChild(lineView.text)
+    if (ie && ie_version < 8) lineView.node.style.zIndex = 2
+  }
+  return lineView.node
+}
+
+function updateLineBackground(cm, lineView) {
+  let cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass
+  if (cls) cls += " CodeMirror-linebackground"
+  if (lineView.background) {
+    if (cls) lineView.background.className = cls
+    else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null }
+  } else if (cls) {
+    let wrap = ensureLineWrapped(lineView)
+    lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild)
+    cm.display.input.setUneditable(lineView.background)
+  }
+}
+
+// Wrapper around buildLineContent which will reuse the structure
+// in display.externalMeasured when possible.
+function getLineContent(cm, lineView) {
+  let ext = cm.display.externalMeasured
+  if (ext && ext.line == lineView.line) {
+    cm.display.externalMeasured = null
+    lineView.measure = ext.measure
+    return ext.built
+  }
+  return buildLineContent(cm, lineView)
+}
+
+// Redraw the line's text. Interacts with the background and text
+// classes because the mode may output tokens that influence these
+// classes.
+function updateLineText(cm, lineView) {
+  let cls = lineView.text.className
+  let built = getLineContent(cm, lineView)
+  if (lineView.text == lineView.node) lineView.node = built.pre
+  lineView.text.parentNode.replaceChild(built.pre, lineView.text)
+  lineView.text = built.pre
+  if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) {
+    lineView.bgClass = built.bgClass
+    lineView.textClass = built.textClass
+    updateLineClasses(cm, lineView)
+  } else if (cls) {
+    lineView.text.className = cls
+  }
+}
+
+function updateLineClasses(cm, lineView) {
+  updateLineBackground(cm, lineView)
+  if (lineView.line.wrapClass)
+    ensureLineWrapped(lineView).className = lineView.line.wrapClass
+  else if (lineView.node != lineView.text)
+    lineView.node.className = ""
+  let textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass
+  lineView.text.className = textClass || ""
+}
+
+function updateLineGutter(cm, lineView, lineN, dims) {
+  if (lineView.gutter) {
+    lineView.node.removeChild(lineView.gutter)
+    lineView.gutter = null
+  }
+  if (lineView.gutterBackground) {
+    lineView.node.removeChild(lineView.gutterBackground)
+    lineView.gutterBackground = null
+  }
+  if (lineView.line.gutterClass) {
+    let wrap = ensureLineWrapped(lineView)
+    lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass,
+                                    `left: ${cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth}px; width: ${dims.gutterTotalWidth}px`)
+    cm.display.input.setUneditable(lineView.gutterBackground)
+    wrap.insertBefore(lineView.gutterBackground, lineView.text)
+  }
+  let markers = lineView.line.gutterMarkers
+  if (cm.options.lineNumbers || markers) {
+    let wrap = ensureLineWrapped(lineView)
+    let gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", `left: ${cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth}px`)
+    cm.display.input.setUneditable(gutterWrap)
+    wrap.insertBefore(gutterWrap, lineView.text)
+    if (lineView.line.gutterClass)
+      gutterWrap.className += " " + lineView.line.gutterClass
+    if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"]))
+      lineView.lineNumber = gutterWrap.appendChild(
+        elt("div", lineNumberFor(cm.options, lineN),
+            "CodeMirror-linenumber CodeMirror-gutter-elt",
+            `left: ${dims.gutterLeft["CodeMirror-linenumbers"]}px; width: ${cm.display.lineNumInnerWidth}px`))
+    if (markers) for (let k = 0; k < cm.options.gutters.length; ++k) {
+      let id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id]
+      if (found)
+        gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt",
+                                   `left: ${dims.gutterLeft[id]}px; width: ${dims.gutterWidth[id]}px`))
+    }
+  }
+}
+
+function updateLineWidgets(cm, lineView, dims) {
+  if (lineView.alignable) lineView.alignable = null
+  for (let node = lineView.node.firstChild, next; node; node = next) {
+    next = node.nextSibling
+    if (node.className == "CodeMirror-linewidget")
+      lineView.node.removeChild(node)
+  }
+  insertLineWidgets(cm, lineView, dims)
+}
+
+// Build a line's DOM representation from scratch
+export function buildLineElement(cm, lineView, lineN, dims) {
+  let built = getLineContent(cm, lineView)
+  lineView.text = lineView.node = built.pre
+  if (built.bgClass) lineView.bgClass = built.bgClass
+  if (built.textClass) lineView.textClass = built.textClass
+
+  updateLineClasses(cm, lineView)
+  updateLineGutter(cm, lineView, lineN, dims)
+  insertLineWidgets(cm, lineView, dims)
+  return lineView.node
+}
+
+// A lineView may contain multiple logical lines (when merged by
+// collapsed spans). The widgets for all of them need to be drawn.
+function insertLineWidgets(cm, lineView, dims) {
+  insertLineWidgetsFor(cm, lineView.line, lineView, dims, true)
+  if (lineView.rest) for (let i = 0; i < lineView.rest.length; i++)
+    insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false)
+}
+
+function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) {
+  if (!line.widgets) return
+  let wrap = ensureLineWrapped(lineView)
+  for (let i = 0, ws = line.widgets; i < ws.length; ++i) {
+    let widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget")
+    if (!widget.handleMouseEvents) node.setAttribute("cm-ignore-events", "true")
+    positionLineWidget(widget, node, lineView, dims)
+    cm.display.input.setUneditable(node)
+    if (allowAbove && widget.above)
+      wrap.insertBefore(node, lineView.gutter || lineView.text)
+    else
+      wrap.appendChild(node)
+    signalLater(widget, "redraw")
+  }
+}
+
+function positionLineWidget(widget, node, lineView, dims) {
+  if (widget.noHScroll) {
+    ;(lineView.alignable || (lineView.alignable = [])).push(node)
+    let width = dims.wrapperWidth
+    node.style.left = dims.fixedPos + "px"
+    if (!widget.coverGutter) {
+      width -= dims.gutterTotalWidth
+      node.style.paddingLeft = dims.gutterTotalWidth + "px"
+    }
+    node.style.width = width + "px"
+  }
+  if (widget.coverGutter) {
+    node.style.zIndex = 5
+    node.style.position = "relative"
+    if (!widget.noHScroll) node.style.marginLeft = -dims.gutterTotalWidth + "px"
+  }
+}
diff --git a/public/codemirror/src/display/update_lines.js b/public/codemirror/src/display/update_lines.js
new file mode 100644
index 000000000..095cddef3
--- /dev/null
+++ b/public/codemirror/src/display/update_lines.js
@@ -0,0 +1,62 @@
+import { heightAtLine } from "../line/spans"
+import { getLine, lineAtHeight, updateLineHeight } from "../line/utils_line"
+import { paddingTop, textHeight } from "../measurement/position_measurement"
+import { ie, ie_version } from "../util/browser"
+
+// Read the actual heights of the rendered lines, and update their
+// stored heights to match.
+export function updateHeightsInViewport(cm) {
+  let display = cm.display
+  let prevBottom = display.lineDiv.offsetTop
+  for (let i = 0; i < display.view.length; i++) {
+    let cur = display.view[i], height
+    if (cur.hidden) continue
+    if (ie && ie_version < 8) {
+      let bot = cur.node.offsetTop + cur.node.offsetHeight
+      height = bot - prevBottom
+      prevBottom = bot
+    } else {
+      let box = cur.node.getBoundingClientRect()
+      height = box.bottom - box.top
+    }
+    let diff = cur.line.height - height
+    if (height < 2) height = textHeight(display)
+    if (diff > .001 || diff < -.001) {
+      updateLineHeight(cur.line, height)
+      updateWidgetHeight(cur.line)
+      if (cur.rest) for (let j = 0; j < cur.rest.length; j++)
+        updateWidgetHeight(cur.rest[j])
+    }
+  }
+}
+
+// Read and store the height of line widgets associated with the
+// given line.
+function updateWidgetHeight(line) {
+  if (line.widgets) for (let i = 0; i < line.widgets.length; ++i)
+    line.widgets[i].height = line.widgets[i].node.parentNode.offsetHeight
+}
+
+// Compute the lines that are visible in a given viewport (defaults
+// the the current scroll position). viewport may contain top,
+// height, and ensure (see op.scrollToPos) properties.
+export function visibleLines(display, doc, viewport) {
+  let top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop
+  top = Math.floor(top - paddingTop(display))
+  let bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight
+
+  let from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom)
+  // Ensure is a {from: {line, ch}, to: {line, ch}} object, and
+  // forces those lines into the viewport (if possible).
+  if (viewport && viewport.ensure) {
+    let ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line
+    if (ensureFrom < from) {
+      from = ensureFrom
+      to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight)
+    } else if (Math.min(ensureTo, doc.lastLine()) >= to) {
+      from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight)
+      to = ensureTo
+    }
+  }
+  return {from: from, to: Math.max(to, from + 1)}
+}
diff --git a/public/codemirror/src/display/view_tracking.js b/public/codemirror/src/display/view_tracking.js
new file mode 100644
index 000000000..b9abd2fc4
--- /dev/null
+++ b/public/codemirror/src/display/view_tracking.js
@@ -0,0 +1,153 @@
+import { buildViewArray } from "../line/line_data"
+import { sawCollapsedSpans } from "../line/saw_special_spans"
+import { visualLineEndNo, visualLineNo } from "../line/spans"
+import { findViewIndex } from "../measurement/position_measurement"
+import { indexOf } from "../util/misc"
+
+// Updates the display.view data structure for a given change to the
+// document. From and to are in pre-change coordinates. Lendiff is
+// the amount of lines added or subtracted by the change. This is
+// used for changes that span multiple lines, or change the way
+// lines are divided into visual lines. regLineChange (below)
+// registers single-line changes.
+export function regChange(cm, from, to, lendiff) {
+  if (from == null) from = cm.doc.first
+  if (to == null) to = cm.doc.first + cm.doc.size
+  if (!lendiff) lendiff = 0
+
+  let display = cm.display
+  if (lendiff && to < display.viewTo &&
+      (display.updateLineNumbers == null || display.updateLineNumbers > from))
+    display.updateLineNumbers = from
+
+  cm.curOp.viewChanged = true
+
+  if (from >= display.viewTo) { // Change after
+    if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo)
+      resetView(cm)
+  } else if (to <= display.viewFrom) { // Change before
+    if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) {
+      resetView(cm)
+    } else {
+      display.viewFrom += lendiff
+      display.viewTo += lendiff
+    }
+  } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap
+    resetView(cm)
+  } else if (from <= display.viewFrom) { // Top overlap
+    let cut = viewCuttingPoint(cm, to, to + lendiff, 1)
+    if (cut) {
+      display.view = display.view.slice(cut.index)
+      display.viewFrom = cut.lineN
+      display.viewTo += lendiff
+    } else {
+      resetView(cm)
+    }
+  } else if (to >= display.viewTo) { // Bottom overlap
+    let cut = viewCuttingPoint(cm, from, from, -1)
+    if (cut) {
+      display.view = display.view.slice(0, cut.index)
+      display.viewTo = cut.lineN
+    } else {
+      resetView(cm)
+    }
+  } else { // Gap in the middle
+    let cutTop = viewCuttingPoint(cm, from, from, -1)
+    let cutBot = viewCuttingPoint(cm, to, to + lendiff, 1)
+    if (cutTop && cutBot) {
+      display.view = display.view.slice(0, cutTop.index)
+        .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN))
+        .concat(display.view.slice(cutBot.index))
+      display.viewTo += lendiff
+    } else {
+      resetView(cm)
+    }
+  }
+
+  let ext = display.externalMeasured
+  if (ext) {
+    if (to < ext.lineN)
+      ext.lineN += lendiff
+    else if (from < ext.lineN + ext.size)
+      display.externalMeasured = null
+  }
+}
+
+// Register a change to a single line. Type must be one of "text",
+// "gutter", "class", "widget"
+export function regLineChange(cm, line, type) {
+  cm.curOp.viewChanged = true
+  let display = cm.display, ext = cm.display.externalMeasured
+  if (ext && line >= ext.lineN && line < ext.lineN + ext.size)
+    display.externalMeasured = null
+
+  if (line < display.viewFrom || line >= display.viewTo) return
+  let lineView = display.view[findViewIndex(cm, line)]
+  if (lineView.node == null) return
+  let arr = lineView.changes || (lineView.changes = [])
+  if (indexOf(arr, type) == -1) arr.push(type)
+}
+
+// Clear the view.
+export function resetView(cm) {
+  cm.display.viewFrom = cm.display.viewTo = cm.doc.first
+  cm.display.view = []
+  cm.display.viewOffset = 0
+}
+
+function viewCuttingPoint(cm, oldN, newN, dir) {
+  let index = findViewIndex(cm, oldN), diff, view = cm.display.view
+  if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size)
+    return {index: index, lineN: newN}
+  let n = cm.display.viewFrom
+  for (let i = 0; i < index; i++)
+    n += view[i].size
+  if (n != oldN) {
+    if (dir > 0) {
+      if (index == view.length - 1) return null
+      diff = (n + view[index].size) - oldN
+      index++
+    } else {
+      diff = n - oldN
+    }
+    oldN += diff; newN += diff
+  }
+  while (visualLineNo(cm.doc, newN) != newN) {
+    if (index == (dir < 0 ? 0 : view.length - 1)) return null
+    newN += dir * view[index - (dir < 0 ? 1 : 0)].size
+    index += dir
+  }
+  return {index: index, lineN: newN}
+}
+
+// Force the view to cover a given range, adding empty view element
+// or clipping off existing ones as needed.
+export function adjustView(cm, from, to) {
+  let display = cm.display, view = display.view
+  if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) {
+    display.view = buildViewArray(cm, from, to)
+    display.viewFrom = from
+  } else {
+    if (display.viewFrom > from)
+      display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view)
+    else if (display.viewFrom < from)
+      display.view = display.view.slice(findViewIndex(cm, from))
+    display.viewFrom = from
+    if (display.viewTo < to)
+      display.view = display.view.concat(buildViewArray(cm, display.viewTo, to))
+    else if (display.viewTo > to)
+      display.view = display.view.slice(0, findViewIndex(cm, to))
+  }
+  display.viewTo = to
+}
+
+// Count the number of lines in the view whose DOM representation is
+// out of date (or nonexistent).
+export function countDirtyView(cm) {
+  let view = cm.display.view, dirty = 0
+  for (let i = 0; i < view.length; i++) {
+    let lineView = view[i]
+    if (!lineView.hidden && (!lineView.node || lineView.changes)) ++dirty
+  }
+  return dirty
+}
diff --git a/public/codemirror/src/edit/CodeMirror.js b/public/codemirror/src/edit/CodeMirror.js
new file mode 100644
index 000000000..2d502c9eb
--- /dev/null
+++ b/public/codemirror/src/edit/CodeMirror.js
@@ -0,0 +1,213 @@
+import { Display } from "../display/Display"
+import { onFocus, onBlur } from "../display/focus"
+import { setGuttersForLineNumbers, updateGutters } from "../display/gutters"
+import { maybeUpdateLineNumberWidth } from "../display/line_numbers"
+import { endOperation, operation, startOperation } from "../display/operations"
+import { initScrollbars } from "../display/scrollbars"
+import { onScrollWheel, setScrollLeft, setScrollTop } from "../display/scroll_events"
+import { clipPos, Pos } from "../line/pos"
+import { posFromMouse } from "../measurement/position_measurement"
+import { eventInWidget } from "../measurement/widgets"
+import Doc from "../model/Doc"
+import { attachDoc } from "../model/document_data"
+import { Range } from "../model/selection"
+import { extendSelection } from "../model/selection_updates"
+import { captureRightClick, ie, ie_version, mobile, webkit } from "../util/browser"
+import { e_preventDefault, e_stop, on, signal, signalDOMEvent } from "../util/event"
+import { bind, copyObj, Delayed } from "../util/misc"
+
+import { clearDragCursor, onDragOver, onDragStart, onDrop } from "./drop_events"
+import { ensureGlobalHandlers } from "./global_events"
+import { onKeyDown, onKeyPress, onKeyUp } from "./key_events"
+import { clickInGutter, onContextMenu, onMouseDown } from "./mouse_events"
+import { themeChanged } from "./utils"
+import { defaults, optionHandlers, Init } from "./options"
+
+// A CodeMirror instance represents an editor. This is the object
+// that user code is usually dealing with.
+
+export function CodeMirror(place, options) {
+  if (!(this instanceof CodeMirror)) return new CodeMirror(place, options)
+
+  this.options = options = options ? copyObj(options) : {}
+  // Determine effective options based on given values and defaults.
+  copyObj(defaults, options, false)
+  setGuttersForLineNumbers(options)
+
+  let doc = options.value
+  if (typeof doc == "string") doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction)
+  this.doc = doc
+
+  let input = new CodeMirror.inputStyles[options.inputStyle](this)
+  let display = this.display = new Display(place, doc, input)
+  display.wrapper.CodeMirror = this
+  updateGutters(this)
+  themeChanged(this)
+  if (options.lineWrapping)
+    this.display.wrapper.className += " CodeMirror-wrap"
+  initScrollbars(this)
+
+  this.state = {
+    keyMaps: [],  // stores maps added by addKeyMap
+    overlays: [], // highlighting overlays, as added by addOverlay
+    modeGen: 0,   // bumped when mode/overlay changes, used to invalidate highlighting info
+    overwrite: false,
+    delayingBlurEvent: false,
+    focused: false,
+    suppressEdits: false, // used to disable editing during key handlers when in readOnly mode
+    pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in input.poll
+    selectingText: false,
+    draggingText: false,
+    highlight: new Delayed(), // stores highlight worker timeout
+    keySeq: null,  // Unfinished key sequence
+    specialChars: null
+  }
+
+  if (options.autofocus && !mobile) display.input.focus()
+
+  // Override magic textarea content restore that IE sometimes does
+  // on our hidden textarea on reload
+  if (ie && ie_version < 11) setTimeout(() => this.display.input.reset(true), 20)
+
+  registerEventHandlers(this)
+  ensureGlobalHandlers()
+
+  startOperation(this)
+  this.curOp.forceUpdate = true
+  attachDoc(this, doc)
+
+  if ((options.autofocus && !mobile) || this.hasFocus())
+    setTimeout(bind(onFocus, this), 20)
+  else
+    onBlur(this)
+
+  for (let opt in optionHandlers) if (optionHandlers.hasOwnProperty(opt))
+    optionHandlers[opt](this, options[opt], Init)
+  maybeUpdateLineNumberWidth(this)
+  if (options.finishInit) options.finishInit(this)
+  for (let i = 0; i < initHooks.length; ++i) initHooks[i](this)
+  endOperation(this)
+  // Suppress optimizelegibility in Webkit, since it breaks text
+  // measuring on line wrapping boundaries.
+  if (webkit && options.lineWrapping &&
+      getComputedStyle(display.lineDiv).textRendering == "optimizelegibility")
+    display.lineDiv.style.textRendering = "auto"
+}
+
+// The default configuration options.
+CodeMirror.defaults = defaults
+// Functions to run when options are changed.
+CodeMirror.optionHandlers = optionHandlers
+
+export default CodeMirror
+
+// Attach the necessary event handlers when initializing the editor
+function registerEventHandlers(cm) {
+  let d = cm.display
+  on(d.scroller, "mousedown", operation(cm, onMouseDown))
+  // Older IE's will not fire a second mousedown for a double click
+  if (ie && ie_version < 11)
+    on(d.scroller, "dblclick", operation(cm, e => {
+      if (signalDOMEvent(cm, e)) return
+      let pos = posFromMouse(cm, e)
+      if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) return
+      e_preventDefault(e)
+      let word = cm.findWordAt(pos)
+      extendSelection(cm.doc, word.anchor, word.head)
+    }))
+  else
+    on(d.scroller, "dblclick", e => signalDOMEvent(cm, e) || e_preventDefault(e))
+  // Some browsers fire contextmenu *after* opening the menu, at
+  // which point we can't mess with it anymore. Context menu is
+  // handled in onMouseDown for these browsers.
+  if (!captureRightClick) on(d.scroller, "contextmenu", e => onContextMenu(cm, e))
+
+  // Used to suppress mouse event handling when a touch happens
+  let touchFinished, prevTouch = {end: 0}
+  function finishTouch() {
+    if (d.activeTouch) {
+      touchFinished = setTimeout(() => d.activeTouch = null, 1000)
+      prevTouch = d.activeTouch
+      prevTouch.end = +new Date
+    }
+  }
+  function isMouseLikeTouchEvent(e) {
+    if (e.touches.length != 1) return false
+    let touch = e.touches[0]
+    return touch.radiusX <= 1 && touch.radiusY <= 1
+  }
+  function farAway(touch, other) {
+    if (other.left == null) return true
+    let dx = other.left - touch.left, dy = other.top - touch.top
+    return dx * dx + dy * dy > 20 * 20
+  }
+  on(d.scroller, "touchstart", e => {
+    if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e)) {
+      d.input.ensurePolled()
+      clearTimeout(touchFinished)
+      let now = +new Date
+      d.activeTouch = {start: now, moved: false,
+                       prev: now - prevTouch.end <= 300 ? prevTouch : null}
+      if (e.touches.length == 1) {
+        d.activeTouch.left = e.touches[0].pageX
+        d.activeTouch.top = e.touches[0].pageY
+      }
+    }
+  })
+  on(d.scroller, "touchmove", () => {
+    if (d.activeTouch) d.activeTouch.moved = true
+  })
+  on(d.scroller, "touchend", e => {
+    let touch = d.activeTouch
+    if (touch && !eventInWidget(d, e) && touch.left != null &&
+        !touch.moved && new Date - touch.start < 300) {
+      let pos = cm.coordsChar(d.activeTouch, "page"), range
+      if (!touch.prev || farAway(touch, touch.prev)) // Single tap
+        range = new Range(pos, pos)
+      else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap
+        range = cm.findWordAt(pos)
+      else // Triple tap
+        range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0)))
+      cm.setSelection(range.anchor, range.head)
+      cm.focus()
+      e_preventDefault(e)
+    }
+    finishTouch()
+  })
+  on(d.scroller, "touchcancel", finishTouch)
+
+  // Sync scrolling between fake scrollbars and real scrollable
+  // area, ensure viewport is updated when scrolling.
+  on(d.scroller, "scroll", () => {
+    if (d.scroller.clientHeight) {
+      setScrollTop(cm, d.scroller.scrollTop)
+      setScrollLeft(cm, d.scroller.scrollLeft, true)
+      signal(cm, "scroll", cm)
+    }
+  })
+
+  // Listen to wheel events in order to try and update the viewport on time.
+  on(d.scroller, "mousewheel", e => onScrollWheel(cm, e))
+  on(d.scroller, "DOMMouseScroll", e => onScrollWheel(cm, e))
+
+  // Prevent wrapper from ever scrolling
+  on(d.wrapper, "scroll", () => d.wrapper.scrollTop = d.wrapper.scrollLeft = 0)
+
+  d.dragFunctions = {
+    enter: e => {if (!signalDOMEvent(cm, e)) e_stop(e)},
+    over: e => {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e) }},
+    start: e => onDragStart(cm, e),
+    drop: operation(cm, onDrop),
+    leave: e => {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm) }}
+  }
+
+  let inp = d.input.getField()
+  on(inp, "keyup", e => onKeyUp.call(cm, e))
+  on(inp, "keydown", operation(cm, onKeyDown))
+  on(inp, "keypress", operation(cm, onKeyPress))
+  on(inp, "focus", e => onFocus(cm, e))
+  on(inp, "blur", e => onBlur(cm, e))
+}
+
+let initHooks = []
+CodeMirror.defineInitHook = f => initHooks.push(f)
diff --git a/public/codemirror/src/edit/commands.js b/public/codemirror/src/edit/commands.js
new file mode 100644
index 000000000..fabf95821
--- /dev/null
+++ b/public/codemirror/src/edit/commands.js
@@ -0,0 +1,178 @@
+import { deleteNearSelection } from "./deleteNearSelection"
+import { runInOp } from "../display/operations"
+import { ensureCursorVisible } from "../display/scrolling"
+import { endOfLine } from "../input/movement"
+import { clipPos, Pos } from "../line/pos"
+import { visualLine, visualLineEnd } from "../line/spans"
+import { getLine, lineNo } from "../line/utils_line"
+import { Range } from "../model/selection"
+import { selectAll } from "../model/selection_updates"
+import { countColumn, sel_dontScroll, sel_move, spaceStr } from "../util/misc"
+import { getOrder } from "../util/bidi"
+
+// Commands are parameter-less actions that can be performed on an
+// editor, mostly used for keybindings.
+export let commands = {
+  selectAll: selectAll,
+  singleSelection: cm => cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll),
+  killLine: cm => deleteNearSelection(cm, range => {
+    if (range.empty()) {
+      let len = getLine(cm.doc, range.head.line).text.length
+      if (range.head.ch == len && range.head.line < cm.lastLine())
+        return {from: range.head, to: Pos(range.head.line + 1, 0)}
+      else
+        return {from: range.head, to: Pos(range.head.line, len)}
+    } else {
+      return {from: range.from(), to: range.to()}
+    }
+  }),
+  deleteLine: cm => deleteNearSelection(cm, range => ({
+    from: Pos(range.from().line, 0),
+    to: clipPos(cm.doc, Pos(range.to().line + 1, 0))
+  })),
+  delLineLeft: cm => deleteNearSelection(cm, range => ({
+    from: Pos(range.from().line, 0), to: range.from()
+  })),
+  delWrappedLineLeft: cm => deleteNearSelection(cm, range => {
+    let top = cm.charCoords(range.head, "div").top + 5
+    let leftPos = cm.coordsChar({left: 0, top: top}, "div")
+    return {from: leftPos, to: range.from()}
+  }),
+  delWrappedLineRight: cm => deleteNearSelection(cm, range => {
+    let top = cm.charCoords(range.head, "div").top + 5
+    let rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")
+    return {from: range.from(), to: rightPos }
+  }),
+  undo: cm => cm.undo(),
+  redo: cm => cm.redo(),
+  undoSelection: cm => cm.undoSelection(),
+  redoSelection: cm => cm.redoSelection(),
+  goDocStart: cm => cm.extendSelection(Pos(cm.firstLine(), 0)),
+  goDocEnd: cm => cm.extendSelection(Pos(cm.lastLine())),
+  goLineStart: cm => cm.extendSelectionsBy(range => lineStart(cm, range.head.line),
+    {origin: "+move", bias: 1}
+  ),
+  goLineStartSmart: cm => cm.extendSelectionsBy(range => lineStartSmart(cm, range.head),
+    {origin: "+move", bias: 1}
+  ),
+  goLineEnd: cm => cm.extendSelectionsBy(range => lineEnd(cm, range.head.line),
+    {origin: "+move", bias: -1}
+  ),
+  goLineRight: cm => cm.extendSelectionsBy(range => {
+    let top = cm.charCoords(range.head, "div").top + 5
+    return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div")
+  }, sel_move),
+  goLineLeft: cm => cm.extendSelectionsBy(range => {
+    let top = cm.charCoords(range.head, "div").top + 5
+    return cm.coordsChar({left: 0, top: top}, "div")
+  }, sel_move),
+  goLineLeftSmart: cm => cm.extendSelectionsBy(range => {
+    let top = cm.charCoords(range.head, "div").top + 5
+    let pos = cm.coordsChar({left: 0, top: top}, "div")
+    if (pos.ch < cm.getLine(pos.line).search(/\S/)) return lineStartSmart(cm, range.head)
+    return pos
+  }, sel_move),
+  goLineUp: cm => cm.moveV(-1, "line"),
+  goLineDown: cm => cm.moveV(1, "line"),
+  goPageUp: cm => cm.moveV(-1, "page"),
+  goPageDown: cm => cm.moveV(1, "page"),
+  goCharLeft: cm => cm.moveH(-1, "char"),
+  goCharRight: cm => cm.moveH(1, "char"),
+  goColumnLeft: cm => cm.moveH(-1, "column"),
+  goColumnRight: cm => cm.moveH(1, "column"),
+  goWordLeft: cm => cm.moveH(-1, "word"),
+  goGroupRight: cm => cm.moveH(1, "group"),
+  goGroupLeft: cm => cm.moveH(-1, "group"),
+  goWordRight: cm => cm.moveH(1, "word"),
+  delCharBefore: cm => cm.deleteH(-1, "char"),
+  delCharAfter: cm => cm.deleteH(1, "char"),
+  delWordBefore: cm => cm.deleteH(-1, "word"),
+  delWordAfter: cm => cm.deleteH(1, "word"),
+  delGroupBefore: cm => cm.deleteH(-1, "group"),
+  delGroupAfter: cm => cm.deleteH(1, "group"),
+  indentAuto: cm => cm.indentSelection("smart"),
+  indentMore: cm => cm.indentSelection("add"),
+  indentLess: cm => cm.indentSelection("subtract"),
+  insertTab: cm => cm.replaceSelection("\t"),
+  insertSoftTab: cm => {
+    let spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize
+    for (let i = 0; i < ranges.length; i++) {
+      let pos = ranges[i].from()
+      let col = countColumn(cm.getLine(pos.line), pos.ch, tabSize)
+      spaces.push(spaceStr(tabSize - col % tabSize))
+    }
+    cm.replaceSelections(spaces)
+  },
+  defaultTab: cm => {
+    if (cm.somethingSelected()) cm.indentSelection("add")
+    else cm.execCommand("insertTab")
+  },
+  // Swap the two chars left and right of each selection's head.
+  // Move cursor behind the two swapped characters afterwards.
+  //
+  // Doesn't consider line feeds a character.
+  // Doesn't scan more than one line above to find a character.
+  // Doesn't do anything on an empty line.
+  // Doesn't do anything with non-empty selections.
+  transposeChars: cm => runInOp(cm, () => {
+    let ranges = cm.listSelections(), newSel = []
+    for (let i = 0; i < ranges.length; i++) {
+      if (!ranges[i].empty()) continue
+      let cur = ranges[i].head, line = getLine(cm.doc, cur.line).text
+      if (line) {
+        if (cur.ch == line.length) cur = new Pos(cur.line, cur.ch - 1)
+        if (cur.ch > 0) {
+          cur = new Pos(cur.line, cur.ch + 1)
+          cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2),
+                          Pos(cur.line, cur.ch - 2), cur, "+transpose")
+        } else if (cur.line > cm.doc.first) {
+          let prev = getLine(cm.doc, cur.line - 1).text
+          if (prev) {
+            cur = new Pos(cur.line, 1)
+            cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() +
+                            prev.charAt(prev.length - 1),
+                            Pos(cur.line - 1, prev.length - 1), cur, "+transpose")
+          }
+        }
+      }
+      newSel.push(new Range(cur, cur))
+    }
+    cm.setSelections(newSel)
+  }),
+  newlineAndIndent: cm => runInOp(cm, () => {
+    let sels = cm.listSelections()
+    for (let i = sels.length - 1; i >= 0; i--)
+      cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, "+input")
+    sels = cm.listSelections()
+    for (let i = 0; i < sels.length; i++)
+      cm.indentLine(sels[i].from().line, null, true)
+    ensureCursorVisible(cm)
+  }),
+  openLine: cm => cm.replaceSelection("\n", "start"),
+  toggleOverwrite: cm => cm.toggleOverwrite()
+}
+
+
+function lineStart(cm, lineN) {
+  let line = getLine(cm.doc, lineN)
+  let visual = visualLine(line)
+  if (visual != line) lineN = lineNo(visual)
+  return endOfLine(true, cm, visual, lineN, 1)
+}
+function lineEnd(cm, lineN) {
+  let line = getLine(cm.doc, lineN)
+  let visual = visualLineEnd(line)
+  if (visual != line) lineN = lineNo(visual)
+  return endOfLine(true, cm, line, lineN, -1)
+}
+function lineStartSmart(cm, pos) {
+  let start = lineStart(cm, pos.line)
+  let line = getLine(cm.doc, start.line)
+  let order = getOrder(line, cm.doc.direction)
+  if (!order || order[0].level == 0) {
+    let firstNonWS = Math.max(0, line.text.search(/\S/))
+    let inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch
+    return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky)
+  }
+  return start
+}
diff --git a/public/codemirror/src/edit/deleteNearSelection.js b/public/codemirror/src/edit/deleteNearSelection.js
new file mode 100644
index 000000000..5a9bd2cfd
--- /dev/null
+++ b/public/codemirror/src/edit/deleteNearSelection.js
@@ -0,0 +1,30 @@
+import { runInOp } from "../display/operations"
+import { ensureCursorVisible } from "../display/scrolling"
+import { cmp } from "../line/pos"
+import { replaceRange } from "../model/changes"
+import { lst } from "../util/misc"
+
+// Helper for deleting text near the selection(s), used to implement
+// backspace, delete, and similar functionality.
+export function deleteNearSelection(cm, compute) {
+  let ranges = cm.doc.sel.ranges, kill = []
+  // Build up a set of ranges to kill first, merging overlapping
+  // ranges.
+  for (let i = 0; i < ranges.length; i++) {
+    let toKill = compute(ranges[i])
+    while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) {
+      let replaced = kill.pop()
+      if (cmp(replaced.from, toKill.from) < 0) {
+        toKill.from = replaced.from
+        break
+      }
+    }
+    kill.push(toKill)
+  }
+  // Next, remove those actual ranges.
+  runInOp(cm, () => {
+    for (let i = kill.length - 1; i >= 0; i--)
+      replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete")
+    ensureCursorVisible(cm)
+  })
+}
diff --git a/public/codemirror/src/edit/drop_events.js b/public/codemirror/src/edit/drop_events.js
new file mode 100644
index 000000000..43e996fb6
--- /dev/null
+++ b/public/codemirror/src/edit/drop_events.js
@@ -0,0 +1,119 @@
+import { drawSelectionCursor } from "../display/selection"
+import { operation } from "../display/operations"
+import { clipPos } from "../line/pos"
+import { posFromMouse } from "../measurement/position_measurement"
+import { eventInWidget } from "../measurement/widgets"
+import { makeChange, replaceRange } from "../model/changes"
+import { changeEnd } from "../model/change_measurement"
+import { simpleSelection } from "../model/selection"
+import { setSelectionNoUndo, setSelectionReplaceHistory } from "../model/selection_updates"
+import { ie, presto, safari } from "../util/browser"
+import { elt, removeChildrenAndAdd } from "../util/dom"
+import { e_preventDefault, e_stop, signalDOMEvent } from "../util/event"
+import { indexOf } from "../util/misc"
+
+// Kludge to work around strange IE behavior where it'll sometimes
+// re-fire a series of drag-related events right after the drop (#1551)
+let lastDrop = 0
+
+export function onDrop(e) {
+  let cm = this
+  clearDragCursor(cm)
+  if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e))
+    return
+  e_preventDefault(e)
+  if (ie) lastDrop = +new Date
+  let pos = posFromMouse(cm, e, true), files = e.dataTransfer.files
+  if (!pos || cm.isReadOnly()) return
+  // Might be a file drop, in which case we simply extract the text
+  // and insert it.
+  if (files && files.length && window.FileReader && window.File) {
+    let n = files.length, text = Array(n), read = 0
+    let loadFile = (file, i) => {
+      if (cm.options.allowDropFileTypes &&
+          indexOf(cm.options.allowDropFileTypes, file.type) == -1)
+        return
+
+      let reader = new FileReader
+      reader.onload = operation(cm, () => {
+        let content = reader.result
+        if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) content = ""
+        text[i] = content
+        if (++read == n) {
+          pos = clipPos(cm.doc, pos)
+          let change = {from: pos, to: pos,
+                        text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())),
+                        origin: "paste"}
+          makeChange(cm.doc, change)
+          setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change)))
+        }
+      })
+      reader.readAsText(file)
+    }
+    for (let i = 0; i < n; ++i) loadFile(files[i], i)
+  } else { // Normal drop
+    // Don't do a replace if the drop happened inside of the selected text.
+    if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) {
+      cm.state.draggingText(e)
+      // Ensure the editor is re-focused
+      setTimeout(() => cm.display.input.focus(), 20)
+      return
+    }
+    try {
+      let text = e.dataTransfer.getData("Text")
+      if (text) {
+        let selected
+        if (cm.state.draggingText && !cm.state.draggingText.copy)
+          selected = cm.listSelections()
+        setSelectionNoUndo(cm.doc, simpleSelection(pos, pos))
+        if (selected) for (let i = 0; i < selected.length; ++i)
+          replaceRange(cm.doc, "", selected[i].anchor, selected[i].head, "drag")
+        cm.replaceSelection(text, "around", "paste")
+        cm.display.input.focus()
+      }
+    }
+    catch(e){}
+  }
+}
+
+export function onDragStart(cm, e) {
+  if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return }
+  if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) return
+
+  e.dataTransfer.setData("Text", cm.getSelection())
+  e.dataTransfer.effectAllowed = "copyMove"
+
+  // Use dummy image instead of default browsers image.
+  // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there.
+  if (e.dataTransfer.setDragImage && !safari) {
+    let img = elt("img", null, null, "position: fixed; left: 0; top: 0;")
+    img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="
+    if (presto) {
+      img.width = img.height = 1
+      cm.display.wrapper.appendChild(img)
+      // Force a relayout, or Opera won't use our image for some obscure reason
+      img._top = img.offsetTop
+    }
+    e.dataTransfer.setDragImage(img, 0, 0)
+    if (presto) img.parentNode.removeChild(img)
+  }
+}
+
+export function onDragOver(cm, e) {
+  let pos = posFromMouse(cm, e)
+  if (!pos) return
+  let frag = document.createDocumentFragment()
+  drawSelectionCursor(cm, pos, frag)
+  if (!cm.display.dragCursor) {
+    cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors")
+    cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv)
+  }
+  removeChildrenAndAdd(cm.display.dragCursor, frag)
+}
+
+export function clearDragCursor(cm) {
+  if (cm.display.dragCursor) {
+    cm.display.lineSpace.removeChild(cm.display.dragCursor)
+    cm.display.dragCursor = null
+  }
+}
diff --git a/public/codemirror/src/edit/fromTextArea.js b/public/codemirror/src/edit/fromTextArea.js
new file mode 100644
index 000000000..5d920830b
--- /dev/null
+++ b/public/codemirror/src/edit/fromTextArea.js
@@ -0,0 +1,61 @@
+import { CodeMirror } from "./CodeMirror"
+import { activeElt } from "../util/dom"
+import { off, on } from "../util/event"
+import { copyObj } from "../util/misc"
+
+export function fromTextArea(textarea, options) {
+  options = options ? copyObj(options) : {}
+  options.value = textarea.value
+  if (!options.tabindex && textarea.tabIndex)
+    options.tabindex = textarea.tabIndex
+  if (!options.placeholder && textarea.placeholder)
+    options.placeholder = textarea.placeholder
+  // Set autofocus to true if this textarea is focused, or if it has
+  // autofocus and no other element is focused.
+  if (options.autofocus == null) {
+    let hasFocus = activeElt()
+    options.autofocus = hasFocus == textarea ||
+      textarea.getAttribute("autofocus") != null && hasFocus == document.body
+  }
+
+  function save() {textarea.value = cm.getValue()}
+
+  let realSubmit
+  if (textarea.form) {
+    on(textarea.form, "submit", save)
+    // Deplorable hack to make the submit method do the right thing.
+    if (!options.leaveSubmitMethodAlone) {
+      let form = textarea.form
+      realSubmit = form.submit
+      try {
+        let wrappedSubmit = form.submit = () => {
+          save()
+          form.submit = realSubmit
+          form.submit()
+          form.submit = wrappedSubmit
+        }
+      } catch(e) {}
+    }
+  }
+
+  options.finishInit = cm => {
+    cm.save = save
+    cm.getTextArea = () => textarea
+    cm.toTextArea = () => {
+      cm.toTextArea = isNaN // Prevent this from being ran twice
+      save()
+      textarea.parentNode.removeChild(cm.getWrapperElement())
+      textarea.style.display = ""
+      if (textarea.form) {
+        off(textarea.form, "submit", save)
+        if (typeof textarea.form.submit == "function")
+          textarea.form.submit = realSubmit
+      }
+    }
+  }
+
+  textarea.style.display = "none"
+  let cm = CodeMirror(node => textarea.parentNode.insertBefore(node, textarea.nextSibling),
+    options)
+  return cm
+}
diff --git a/public/codemirror/src/edit/global_events.js b/public/codemirror/src/edit/global_events.js
new file mode 100644
index 000000000..dd7d18530
--- /dev/null
+++ b/public/codemirror/src/edit/global_events.js
@@ -0,0 +1,44 @@
+import { onBlur } from "../display/focus"
+import { on } from "../util/event"
+
+// These must be handled carefully, because naively registering a
+// handler for each editor will cause the editors to never be
+// garbage collected.
+
+function forEachCodeMirror(f) {
+  if (!document.body.getElementsByClassName) return
+  let byClass = document.body.getElementsByClassName("CodeMirror")
+  for (let i = 0; i < byClass.length; i++) {
+    let cm = byClass[i].CodeMirror
+    if (cm) f(cm)
+  }
+}
+
+let globalsRegistered = false
+export function ensureGlobalHandlers() {
+  if (globalsRegistered) return
+  registerGlobalHandlers()
+  globalsRegistered = true
+}
+function registerGlobalHandlers() {
+  // When the window resizes, we need to refresh active editors.
+  let resizeTimer
+  on(window, "resize", () => {
+    if (resizeTimer == null) resizeTimer = setTimeout(() => {
+      resizeTimer = null
+      forEachCodeMirror(onResize)
+    }, 100)
+  })
+  // When the window loses focus, we want to show the editor as blurred
+  on(window, "blur", () => forEachCodeMirror(onBlur))
+}
+// Called when the window resizes
+function onResize(cm) {
+  let d = cm.display
+  if (d.lastWrapHeight == d.wrapper.clientHeight && d.lastWrapWidth == d.wrapper.clientWidth)
+    return
+  // Might be a text scaling operation, clear size caches.
+  d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null
+  d.scrollbarsClipped = false
+  cm.setSize()
+}
diff --git a/public/codemirror/src/edit/key_events.js b/public/codemirror/src/edit/key_events.js
new file mode 100644
index 000000000..8e695473b
--- /dev/null
+++ b/public/codemirror/src/edit/key_events.js
@@ -0,0 +1,152 @@
+import { signalLater } from "../util/operation_group"
+import { restartBlink } from "../display/selection"
+import { isModifierKey, keyName, lookupKey } from "../input/keymap"
+import { eventInWidget } from "../measurement/widgets"
+import { ie, ie_version, mac, presto } from "../util/browser"
+import { activeElt, addClass, rmClass } from "../util/dom"
+import { e_preventDefault, off, on, signalDOMEvent } from "../util/event"
+import { hasCopyEvent } from "../util/feature_detection"
+import { Delayed, Pass } from "../util/misc"
+
+import { commands } from "./commands"
+
+// Run a handler that was bound to a key.
+function doHandleBinding(cm, bound, dropShift) {
+  if (typeof bound == "string") {
+    bound = commands[bound]
+    if (!bound) return false
+  }
+  // Ensure previous input has been read, so that the handler sees a
+  // consistent view of the document
+  cm.display.input.ensurePolled()
+  let prevShift = cm.display.shift, done = false
+  try {
+    if (cm.isReadOnly()) cm.state.suppressEdits = true
+    if (dropShift) cm.display.shift = false
+    done = bound(cm) != Pass
+  } finally {
+    cm.display.shift = prevShift
+    cm.state.suppressEdits = false
+  }
+  return done
+}
+
+function lookupKeyForEditor(cm, name, handle) {
+  for (let i = 0; i < cm.state.keyMaps.length; i++) {
+    let result = lookupKey(name, cm.state.keyMaps[i], handle, cm)
+    if (result) return result
+  }
+  return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm))
+    || lookupKey(name, cm.options.keyMap, handle, cm)
+}
+
+let stopSeq = new Delayed
+function dispatchKey(cm, name, e, handle) {
+  let seq = cm.state.keySeq
+  if (seq) {
+    if (isModifierKey(name)) return "handled"
+    stopSeq.set(50, () => {
+      if (cm.state.keySeq == seq) {
+        cm.state.keySeq = null
+        cm.display.input.reset()
+      }
+    })
+    name = seq + " " + name
+  }
+  let result = lookupKeyForEditor(cm, name, handle)
+
+  if (result == "multi")
+    cm.state.keySeq = name
+  if (result == "handled")
+    signalLater(cm, "keyHandled", cm, name, e)
+
+  if (result == "handled" || result == "multi") {
+    e_preventDefault(e)
+    restartBlink(cm)
+  }
+
+  if (seq && !result && /\'$/.test(name)) {
+    e_preventDefault(e)
+    return true
+  }
+  return !!result
+}
+
+// Handle a key from the keydown event.
+function handleKeyBinding(cm, e) {
+  let name = keyName(e, true)
+  if (!name) return false
+
+  if (e.shiftKey && !cm.state.keySeq) {
+    // First try to resolve full name (including 'Shift-'). Failing
+    // that, see if there is a cursor-motion command (starting with
+    // 'go') bound to the keyname without 'Shift-'.
+    return dispatchKey(cm, "Shift-" + name, e, b => doHandleBinding(cm, b, true))
+        || dispatchKey(cm, name, e, b => {
+             if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion)
+               return doHandleBinding(cm, b)
+           })
+  } else {
+    return dispatchKey(cm, name, e, b => doHandleBinding(cm, b))
+  }
+}
+
+// Handle a key from the keypress event
+function handleCharBinding(cm, e, ch) {
+  return dispatchKey(cm, "'" + ch + "'", e, b => doHandleBinding(cm, b, true))
+}
+
+let lastStoppedKey = null
+export function onKeyDown(e) {
+  let cm = this
+  cm.curOp.focus = activeElt()
+  if (signalDOMEvent(cm, e)) return
+  // IE does strange things with escape.
+  if (ie && ie_version < 11 && e.keyCode == 27) e.returnValue = false
+  let code = e.keyCode
+  cm.display.shift = code == 16 || e.shiftKey
+  let handled = handleKeyBinding(cm, e)
+  if (presto) {
+    lastStoppedKey = handled ? code : null
+    // Opera has no cut event... we try to at least catch the key combo
+    if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey))
+      cm.replaceSelection("", null, "cut")
+  }
+
+  // Turn mouse into crosshair when Alt is held on Mac.
+  if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className))
+    showCrossHair(cm)
+}
+
+function showCrossHair(cm) {
+  let lineDiv = cm.display.lineDiv
+  addClass(lineDiv, "CodeMirror-crosshair")
+
+  function up(e) {
+    if (e.keyCode == 18 || !e.altKey) {
+      rmClass(lineDiv, "CodeMirror-crosshair")
+      off(document, "keyup", up)
+      off(document, "mouseover", up)
+    }
+  }
+  on(document, "keyup", up)
+  on(document, "mouseover", up)
+}
+
+export function onKeyUp(e) {
+  if (e.keyCode == 16) this.doc.sel.shift = false
+  signalDOMEvent(this, e)
+}
+
+export function onKeyPress(e) {
+  let cm = this
+  if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) return
+  let keyCode = e.keyCode, charCode = e.charCode
+  if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return}
+  if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) return
+  let ch = String.fromCharCode(charCode == null ? keyCode : charCode)
+  // Some browsers fire keypress events for backspace
+  if (ch == "\x08") return
+  if (handleCharBinding(cm, e, ch)) return
+  cm.display.input.onKeyPress(e)
+}
diff --git a/public/codemirror/src/edit/legacy.js b/public/codemirror/src/edit/legacy.js
new file mode 100644
index 000000000..bc3df6c8f
--- /dev/null
+++ b/public/codemirror/src/edit/legacy.js
@@ -0,0 +1,62 @@
+import { scrollbarModel } from "../display/scrollbars"
+import { wheelEventPixels } from "../display/scroll_events"
+import { keyMap, keyName, isModifierKey, lookupKey, normalizeKeyMap } from "../input/keymap"
+import { keyNames } from "../input/keynames"
+import { Line } from "../line/line_data"
+import { cmp, Pos } from "../line/pos"
+import { changeEnd } from "../model/change_measurement"
+import Doc from "../model/Doc"
+import { LineWidget } from "../model/line_widget"
+import { SharedTextMarker, TextMarker } from "../model/mark_text"
+import { copyState, extendMode, getMode, innerMode, mimeModes, modeExtensions, modes, resolveMode, startState } from "../modes"
+import { addClass, contains, rmClass } from "../util/dom"
+import { e_preventDefault, e_stop, e_stopPropagation, off, on, signal } from "../util/event"
+import { splitLinesAuto } from "../util/feature_detection"
+import { countColumn, findColumn, isWordCharBasic, Pass } from "../util/misc"
+import StringStream from "../util/StringStream"
+
+import { commands } from "./commands"
+
+export function addLegacyProps(CodeMirror) {
+  CodeMirror.off = off
+  CodeMirror.on = on
+  CodeMirror.wheelEventPixels = wheelEventPixels
+  CodeMirror.Doc = Doc
+  CodeMirror.splitLines = splitLinesAuto
+  CodeMirror.countColumn = countColumn
+  CodeMirror.findColumn = findColumn
+  CodeMirror.isWordChar = isWordCharBasic
+  CodeMirror.Pass = Pass
+  CodeMirror.signal = signal
+  CodeMirror.Line = Line
+  CodeMirror.changeEnd = changeEnd
+  CodeMirror.scrollbarModel = scrollbarModel
+  CodeMirror.Pos = Pos
+  CodeMirror.cmpPos = cmp
+  CodeMirror.modes = modes
+  CodeMirror.mimeModes = mimeModes
+  CodeMirror.resolveMode = resolveMode
+  CodeMirror.getMode = getMode
+  CodeMirror.modeExtensions = modeExtensions
+  CodeMirror.extendMode = extendMode
+  CodeMirror.copyState = copyState
+  CodeMirror.startState = startState
+  CodeMirror.innerMode = innerMode
+  CodeMirror.commands = commands
+  CodeMirror.keyMap = keyMap
+  CodeMirror.keyName = keyName
+  CodeMirror.isModifierKey = isModifierKey
+  CodeMirror.lookupKey = lookupKey
+  CodeMirror.normalizeKeyMap = normalizeKeyMap
+  CodeMirror.StringStream = StringStream
+  CodeMirror.SharedTextMarker = SharedTextMarker
+  CodeMirror.TextMarker = TextMarker
+  CodeMirror.LineWidget = LineWidget
+  CodeMirror.e_preventDefault = e_preventDefault
+  CodeMirror.e_stopPropagation = e_stopPropagation
+  CodeMirror.e_stop = e_stop
+  CodeMirror.addClass = addClass
+  CodeMirror.contains = contains
+  CodeMirror.rmClass = rmClass
+  CodeMirror.keyNames = keyNames
+}
diff --git a/public/codemirror/src/edit/main.js b/public/codemirror/src/edit/main.js
new file mode 100644
index 000000000..7e04a3700
--- /dev/null
+++ b/public/codemirror/src/edit/main.js
@@ -0,0 +1,69 @@
+// EDITOR CONSTRUCTOR
+
+import { CodeMirror } from "./CodeMirror"
+export { CodeMirror } from "./CodeMirror"
+
+import { eventMixin } from "../util/event"
+import { indexOf } from "../util/misc"
+
+import { defineOptions } from "./options"
+
+defineOptions(CodeMirror)
+
+import addEditorMethods from "./methods"
+
+addEditorMethods(CodeMirror)
+
+import Doc from "../model/Doc"
+
+// Set up methods on CodeMirror's prototype to redirect to the editor's document.
+let dontDelegate = "iter insert remove copy getEditor constructor".split(" ")
+for (let prop in Doc.prototype) if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0)
+  CodeMirror.prototype[prop] = (function(method) {
+    return function() {return method.apply(this.doc, arguments)}
+  })(Doc.prototype[prop])
+
+eventMixin(Doc)
+
+// INPUT HANDLING
+
+import ContentEditableInput from "../input/ContentEditableInput"
+import TextareaInput from "../input/TextareaInput"
+CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput}
+
+// MODE DEFINITION AND QUERYING
+
+import { defineMIME, defineMode } from "../modes"
+
+// Extra arguments are stored as the mode's dependencies, which is
+// used by (legacy) mechanisms like loadmode.js to automatically
+// load a mode. (Preferred mechanism is the require/define calls.)
+CodeMirror.defineMode = function(name/*, mode, …*/) {
+  if (!CodeMirror.defaults.mode && name != "null") CodeMirror.defaults.mode = name
+  defineMode.apply(this, arguments)
+}
+
+CodeMirror.defineMIME = defineMIME
+
+// Minimal default mode.
+CodeMirror.defineMode("null", () => ({token: stream => stream.skipToEnd()}))
+CodeMirror.defineMIME("text/plain", "null")
+
+// EXTENSIONS
+
+CodeMirror.defineExtension = (name, func) => {
+  CodeMirror.prototype[name] = func
+}
+CodeMirror.defineDocExtension = (name, func) => {
+  Doc.prototype[name] = func
+}
+
+import { fromTextArea } from "./fromTextArea"
+
+CodeMirror.fromTextArea = fromTextArea
+
+import { addLegacyProps } from "./legacy"
+
+addLegacyProps(CodeMirror)
+
+CodeMirror.version = "5.25.0"
diff --git a/public/codemirror/src/edit/methods.js b/public/codemirror/src/edit/methods.js
new file mode 100644
index 000000000..b8dd343d0
--- /dev/null
+++ b/public/codemirror/src/edit/methods.js
@@ -0,0 +1,546 @@
+import { deleteNearSelection } from "./deleteNearSelection"
+import { commands } from "./commands"
+import { attachDoc } from "../model/document_data"
+import { activeElt, addClass, rmClass } from "../util/dom"
+import { eventMixin, signal } from "../util/event"
+import { getLineStyles, getStateBefore, takeToken } from "../line/highlight"
+import { indentLine } from "../input/indent"
+import { triggerElectric } from "../input/input"
+import { onKeyDown, onKeyPress, onKeyUp } from "./key_events"
+import { getKeyMap } from "../input/keymap"
+import { endOfLine, moveLogically, moveVisually } from "../input/movement"
+import { methodOp, operation, runInOp } from "../display/operations"
+import { clipLine, clipPos, equalCursorPos, Pos } from "../line/pos"
+import { charCoords, charWidth, clearCaches, clearLineMeasurementCache, coordsChar, cursorCoords, displayHeight, displayWidth, estimateLineHeights, fromCoordSystem, intoCoordSystem, scrollGap, textHeight } from "../measurement/position_measurement"
+import { Range } from "../model/selection"
+import { replaceOneSelection, skipAtomic } from "../model/selection_updates"
+import { addToScrollPos, calculateScrollPos, ensureCursorVisible, resolveScrollToPos, scrollIntoView } from "../display/scrolling"
+import { heightAtLine } from "../line/spans"
+import { updateGutterSpace } from "../display/update_display"
+import { indexOf, insertSorted, isWordChar, sel_dontScroll, sel_move } from "../util/misc"
+import { signalLater } from "../util/operation_group"
+import { getLine, isLine, lineAtHeight } from "../line/utils_line"
+import { regChange, regLineChange } from "../display/view_tracking"
+
+// The publicly visible API. Note that methodOp(f) means
+// 'wrap f in an operation, performed on its `this` parameter'.
+
+// This is not the complete set of editor methods. Most of the
+// methods defined on the Doc type are also injected into
+// CodeMirror.prototype, for backwards compatibility and
+// convenience.
+
+export default function(CodeMirror) {
+  let optionHandlers = CodeMirror.optionHandlers
+
+  let helpers = CodeMirror.helpers = {}
+
+  CodeMirror.prototype = {
+    constructor: CodeMirror,
+    focus: function(){window.focus(); this.display.input.focus()},
+
+    setOption: function(option, value) {
+      let options = this.options, old = options[option]
+      if (options[option] == value && option != "mode") return
+      options[option] = value
+      if (optionHandlers.hasOwnProperty(option))
+        operation(this, optionHandlers[option])(this, value, old)
+      signal(this, "optionChange", this, option)
+    },
+
+    getOption: function(option) {return this.options[option]},
+    getDoc: function() {return this.doc},
+
+    addKeyMap: function(map, bottom) {
+      this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map))
+    },
+    removeKeyMap: function(map) {
+      let maps = this.state.keyMaps
+      for (let i = 0; i < maps.length; ++i)
+        if (maps[i] == map || maps[i].name == map) {
+          maps.splice(i, 1)
+          return true
+        }
+    },
+
+    addOverlay: methodOp(function(spec, options) {
+      let mode = spec.token ? spec : CodeMirror.getMode(this.options, spec)
+      if (mode.startState) throw new Error("Overlays may not be stateful.")
+      insertSorted(this.state.overlays,
+                   {mode: mode, modeSpec: spec, opaque: options && options.opaque,
+                    priority: (options && options.priority) || 0},
+                   overlay => overlay.priority)
+      this.state.modeGen++
+      regChange(this)
+    }),
+    removeOverlay: methodOp(function(spec) {
+      let overlays = this.state.overlays
+      for (let i = 0; i < overlays.length; ++i) {
+        let cur = overlays[i].modeSpec
+        if (cur == spec || typeof spec == "string" && cur.name == spec) {
+          overlays.splice(i, 1)
+          this.state.modeGen++
+          regChange(this)
+          return
+        }
+      }
+    }),
+
+    indentLine: methodOp(function(n, dir, aggressive) {
+      if (typeof dir != "string" && typeof dir != "number") {
+        if (dir == null) dir = this.options.smartIndent ? "smart" : "prev"
+        else dir = dir ? "add" : "subtract"
+      }
+      if (isLine(this.doc, n)) indentLine(this, n, dir, aggressive)
+    }),
+    indentSelection: methodOp(function(how) {
+      let ranges = this.doc.sel.ranges, end = -1
+      for (let i = 0; i < ranges.length; i++) {
+        let range = ranges[i]
+        if (!range.empty()) {
+          let from = range.from(), to = range.to()
+          let start = Math.max(end, from.line)
+          end = Math.min(this.lastLine(), to.line - (to.ch ? 0 : 1)) + 1
+          for (let j = start; j < end; ++j)
+            indentLine(this, j, how)
+          let newRanges = this.doc.sel.ranges
+          if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0)
+            replaceOneSelection(this.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll)
+        } else if (range.head.line > end) {
+          indentLine(this, range.head.line, how, true)
+          end = range.head.line
+          if (i == this.doc.sel.primIndex) ensureCursorVisible(this)
+        }
+      }
+    }),
+
+    // Fetch the parser token for a given character. Useful for hacks
+    // that want to inspect the mode state (say, for completion).
+    getTokenAt: function(pos, precise) {
+      return takeToken(this, pos, precise)
+    },
+
+    getLineTokens: function(line, precise) {
+      return takeToken(this, Pos(line), precise, true)
+    },
+
+    getTokenTypeAt: function(pos) {
+      pos = clipPos(this.doc, pos)
+      let styles = getLineStyles(this, getLine(this.doc, pos.line))
+      let before = 0, after = (styles.length - 1) / 2, ch = pos.ch
+      let type
+      if (ch == 0) type = styles[2]
+      else for (;;) {
+        let mid = (before + after) >> 1
+        if ((mid ? styles[mid * 2 - 1] : 0) >= ch) after = mid
+        else if (styles[mid * 2 + 1] < ch) before = mid + 1
+        else { type = styles[mid * 2 + 2]; break }
+      }
+      let cut = type ? type.indexOf("overlay ") : -1
+      return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1)
+    },
+
+    getModeAt: function(pos) {
+      let mode = this.doc.mode
+      if (!mode.innerMode) return mode
+      return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode
+    },
+
+    getHelper: function(pos, type) {
+      return this.getHelpers(pos, type)[0]
+    },
+
+    getHelpers: function(pos, type) {
+      let found = []
+      if (!helpers.hasOwnProperty(type)) return found
+      let help = helpers[type], mode = this.getModeAt(pos)
+      if (typeof mode[type] == "string") {
+        if (help[mode[type]]) found.push(help[mode[type]])
+      } else if (mode[type]) {
+        for (let i = 0; i < mode[type].length; i++) {
+          let val = help[mode[type][i]]
+          if (val) found.push(val)
+        }
+      } else if (mode.helperType && help[mode.helperType]) {
+        found.push(help[mode.helperType])
+      } else if (help[mode.name]) {
+        found.push(help[mode.name])
+      }
+      for (let i = 0; i < help._global.length; i++) {
+        let cur = help._global[i]
+        if (cur.pred(mode, this) && indexOf(found, cur.val) == -1)
+          found.push(cur.val)
+      }
+      return found
+    },
+
+    getStateAfter: function(line, precise) {
+      let doc = this.doc
+      line = clipLine(doc, line == null ? doc.first + doc.size - 1: line)
+      return getStateBefore(this, line + 1, precise)
+    },
+
+    cursorCoords: function(start, mode) {
+      let pos, range = this.doc.sel.primary()
+      if (start == null) pos = range.head
+      else if (typeof start == "object") pos = clipPos(this.doc, start)
+      else pos = start ? range.from() : range.to()
+      return cursorCoords(this, pos, mode || "page")
+    },
+
+    charCoords: function(pos, mode) {
+      return charCoords(this, clipPos(this.doc, pos), mode || "page")
+    },
+
+    coordsChar: function(coords, mode) {
+      coords = fromCoordSystem(this, coords, mode || "page")
+      return coordsChar(this, coords.left, coords.top)
+    },
+
+    lineAtHeight: function(height, mode) {
+      height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top
+      return lineAtHeight(this.doc, height + this.display.viewOffset)
+    },
+    heightAtLine: function(line, mode, includeWidgets) {
+      let end = false, lineObj
+      if (typeof line == "number") {
+        let last = this.doc.first + this.doc.size - 1
+        if (line < this.doc.first) line = this.doc.first
+        else if (line > last) { line = last; end = true }
+        lineObj = getLine(this.doc, line)
+      } else {
+        lineObj = line
+      }
+      return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page", includeWidgets || end).top +
+        (end ? this.doc.height - heightAtLine(lineObj) : 0)
+    },
+
+    defaultTextHeight: function() { return textHeight(this.display) },
+    defaultCharWidth: function() { return charWidth(this.display) },
+
+    getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}},
+
+    addWidget: function(pos, node, scroll, vert, horiz) {
+      let display = this.display
+      pos = cursorCoords(this, clipPos(this.doc, pos))
+      let top = pos.bottom, left = pos.left
+      node.style.position = "absolute"
+      node.setAttribute("cm-ignore-events", "true")
+      this.display.input.setUneditable(node)
+      display.sizer.appendChild(node)
+      if (vert == "over") {
+        top = pos.top
+      } else if (vert == "above" || vert == "near") {
+        let vspace = Math.max(display.wrapper.clientHeight, this.doc.height),
+        hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth)
+        // Default to positioning above (if specified and possible); otherwise default to positioning below
+        if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight)
+          top = pos.top - node.offsetHeight
+        else if (pos.bottom + node.offsetHeight <= vspace)
+          top = pos.bottom
+        if (left + node.offsetWidth > hspace)
+          left = hspace - node.offsetWidth
+      }
+      node.style.top = top + "px"
+      node.style.left = node.style.right = ""
+      if (horiz == "right") {
+        left = display.sizer.clientWidth - node.offsetWidth
+        node.style.right = "0px"
+      } else {
+        if (horiz == "left") left = 0
+        else if (horiz == "middle") left = (display.sizer.clientWidth - node.offsetWidth) / 2
+        node.style.left = left + "px"
+      }
+      if (scroll)
+        scrollIntoView(this, {left, top, right: left + node.offsetWidth, bottom: top + node.offsetHeight})
+    },
+
+    triggerOnKeyDown: methodOp(onKeyDown),
+    triggerOnKeyPress: methodOp(onKeyPress),
+    triggerOnKeyUp: onKeyUp,
+
+    execCommand: function(cmd) {
+      if (commands.hasOwnProperty(cmd))
+        return commands[cmd].call(null, this)
+    },
+
+    triggerElectric: methodOp(function(text) { triggerElectric(this, text) }),
+
+    findPosH: function(from, amount, unit, visually) {
+      let dir = 1
+      if (amount < 0) { dir = -1; amount = -amount }
+      let cur = clipPos(this.doc, from)
+      for (let i = 0; i < amount; ++i) {
+        cur = findPosH(this.doc, cur, dir, unit, visually)
+        if (cur.hitSide) break
+      }
+      return cur
+    },
+
+    moveH: methodOp(function(dir, unit) {
+      this.extendSelectionsBy(range => {
+        if (this.display.shift || this.doc.extend || range.empty())
+          return findPosH(this.doc, range.head, dir, unit, this.options.rtlMoveVisually)
+        else
+          return dir < 0 ? range.from() : range.to()
+      }, sel_move)
+    }),
+
+    deleteH: methodOp(function(dir, unit) {
+      let sel = this.doc.sel, doc = this.doc
+      if (sel.somethingSelected())
+        doc.replaceSelection("", null, "+delete")
+      else
+        deleteNearSelection(this, range => {
+          let other = findPosH(doc, range.head, dir, unit, false)
+          return dir < 0 ? {from: other, to: range.head} : {from: range.head, to: other}
+        })
+    }),
+
+    findPosV: function(from, amount, unit, goalColumn) {
+      let dir = 1, x = goalColumn
+      if (amount < 0) { dir = -1; amount = -amount }
+      let cur = clipPos(this.doc, from)
+      for (let i = 0; i < amount; ++i) {
+        let coords = cursorCoords(this, cur, "div")
+        if (x == null) x = coords.left
+        else coords.left = x
+        cur = findPosV(this, coords, dir, unit)
+        if (cur.hitSide) break
+      }
+      return cur
+    },
+
+    moveV: methodOp(function(dir, unit) {
+      let doc = this.doc, goals = []
+      let collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected()
+      doc.extendSelectionsBy(range => {
+        if (collapse)
+          return dir < 0 ? range.from() : range.to()
+        let headPos = cursorCoords(this, range.head, "div")
+        if (range.goalColumn != null) headPos.left = range.goalColumn
+        goals.push(headPos.left)
+        let pos = findPosV(this, headPos, dir, unit)
+        if (unit == "page" && range == doc.sel.primary())
+          addToScrollPos(this, null, charCoords(this, pos, "div").top - headPos.top)
+        return pos
+      }, sel_move)
+      if (goals.length) for (let i = 0; i < doc.sel.ranges.length; i++)
+        doc.sel.ranges[i].goalColumn = goals[i]
+    }),
+
+    // Find the word at the given position (as returned by coordsChar).
+    findWordAt: function(pos) {
+      let doc = this.doc, line = getLine(doc, pos.line).text
+      let start = pos.ch, end = pos.ch
+      if (line) {
+        let helper = this.getHelper(pos, "wordChars")
+        if ((pos.sticky == "before" || end == line.length) && start) --start; else ++end
+        let startChar = line.charAt(start)
+        let check = isWordChar(startChar, helper)
+          ? ch => isWordChar(ch, helper)
+          : /\s/.test(startChar) ? ch => /\s/.test(ch)
+          : ch => (!/\s/.test(ch) && !isWordChar(ch))
+        while (start > 0 && check(line.charAt(start - 1))) --start
+        while (end < line.length && check(line.charAt(end))) ++end
+      }
+      return new Range(Pos(pos.line, start), Pos(pos.line, end))
+    },
+
+    toggleOverwrite: function(value) {
+      if (value != null && value == this.state.overwrite) return
+      if (this.state.overwrite = !this.state.overwrite)
+        addClass(this.display.cursorDiv, "CodeMirror-overwrite")
+      else
+        rmClass(this.display.cursorDiv, "CodeMirror-overwrite")
+
+      signal(this, "overwriteToggle", this, this.state.overwrite)
+    },
+    hasFocus: function() { return this.display.input.getField() == activeElt() },
+    isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) },
+
+    scrollTo: methodOp(function(x, y) {
+      if (x != null || y != null) resolveScrollToPos(this)
+      if (x != null) this.curOp.scrollLeft = x
+      if (y != null) this.curOp.scrollTop = y
+    }),
+    getScrollInfo: function() {
+      let scroller = this.display.scroller
+      return {left: scroller.scrollLeft, top: scroller.scrollTop,
+              height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight,
+              width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth,
+              clientHeight: displayHeight(this), clientWidth: displayWidth(this)}
+    },
+
+    scrollIntoView: methodOp(function(range, margin) {
+      if (range == null) {
+        range = {from: this.doc.sel.primary().head, to: null}
+        if (margin == null) margin = this.options.cursorScrollMargin
+      } else if (typeof range == "number") {
+        range = {from: Pos(range, 0), to: null}
+      } else if (range.from == null) {
+        range = {from: range, to: null}
+      }
+      if (!range.to) range.to = range.from
+      range.margin = margin || 0
+
+      if (range.from.line != null) {
+        resolveScrollToPos(this)
+        this.curOp.scrollToPos = range
+      } else {
+        let sPos = calculateScrollPos(this, {
+          left: Math.min(range.from.left, range.to.left),
+          top: Math.min(range.from.top, range.to.top) - range.margin,
+          right: Math.max(range.from.right, range.to.right),
+          bottom: Math.max(range.from.bottom, range.to.bottom) + range.margin
+        })
+        this.scrollTo(sPos.scrollLeft, sPos.scrollTop)
+      }
+    }),
+
+    setSize: methodOp(function(width, height) {
+      let interpret = val => typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val
+      if (width != null) this.display.wrapper.style.width = interpret(width)
+      if (height != null) this.display.wrapper.style.height = interpret(height)
+      if (this.options.lineWrapping) clearLineMeasurementCache(this)
+      let lineNo = this.display.viewFrom
+      this.doc.iter(lineNo, this.display.viewTo, line => {
+        if (line.widgets) for (let i = 0; i < line.widgets.length; i++)
+          if (line.widgets[i].noHScroll) { regLineChange(this, lineNo, "widget"); break }
+        ++lineNo
+      })
+      this.curOp.forceUpdate = true
+      signal(this, "refresh", this)
+    }),
+
+    operation: function(f){return runInOp(this, f)},
+
+    refresh: methodOp(function() {
+      let oldHeight = this.display.cachedTextHeight
+      regChange(this)
+      this.curOp.forceUpdate = true
+      clearCaches(this)
+      this.scrollTo(this.doc.scrollLeft, this.doc.scrollTop)
+      updateGutterSpace(this)
+      if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5)
+        estimateLineHeights(this)
+      signal(this, "refresh", this)
+    }),
+
+    swapDoc: methodOp(function(doc) {
+      let old = this.doc
+      old.cm = null
+      attachDoc(this, doc)
+      clearCaches(this)
+      this.display.input.reset()
+      this.scrollTo(doc.scrollLeft, doc.scrollTop)
+      this.curOp.forceScroll = true
+      signalLater(this, "swapDoc", this, old)
+      return old
+    }),
+
+    getInputField: function(){return this.display.input.getField()},
+    getWrapperElement: function(){return this.display.wrapper},
+    getScrollerElement: function(){return this.display.scroller},
+    getGutterElement: function(){return this.display.gutters}
+  }
+  eventMixin(CodeMirror)
+
+  CodeMirror.registerHelper = function(type, name, value) {
+    if (!helpers.hasOwnProperty(type)) helpers[type] = CodeMirror[type] = {_global: []}
+    helpers[type][name] = value
+  }
+  CodeMirror.registerGlobalHelper = function(type, name, predicate, value) {
+    CodeMirror.registerHelper(type, name, value)
+    helpers[type]._global.push({pred: predicate, val: value})
+  }
+}
+
+// Used for horizontal relative motion. Dir is -1 or 1 (left or
+// right), unit can be "char", "column" (like char, but doesn't
+// cross line boundaries), "word" (across next word), or "group" (to
+// the start of next group of word or non-word-non-whitespace
+// chars). The visually param controls whether, in right-to-left
+// text, direction 1 means to move towards the next index in the
+// string, or towards the character to the right of the current
+// position. The resulting position will have a hitSide=true
+// property if it reached the end of the document.
+function findPosH(doc, pos, dir, unit, visually) {
+  let oldPos = pos
+  let origDir = dir
+  let lineObj = getLine(doc, pos.line)
+  function findNextLine() {
+    let l = pos.line + dir
+    if (l < doc.first || l >= doc.first + doc.size) return false
+    pos = new Pos(l, pos.ch, pos.sticky)
+    return lineObj = getLine(doc, l)
+  }
+  function moveOnce(boundToLine) {
+    let next
+    if (visually) {
+      next = moveVisually(doc.cm, lineObj, pos, dir)
+    } else {
+      next = moveLogically(lineObj, pos, dir)
+    }
+    if (next == null) {
+      if (!boundToLine && findNextLine())
+        pos = endOfLine(visually, doc.cm, lineObj, pos.line, dir)
+      else
+        return false
+    } else {
+      pos = next
+    }
+    return true
+  }
+
+  if (unit == "char") {
+    moveOnce()
+  } else if (unit == "column") {
+    moveOnce(true)
+  } else if (unit == "word" || unit == "group") {
+    let sawType = null, group = unit == "group"
+    let helper = doc.cm && doc.cm.getHelper(pos, "wordChars")
+    for (let first = true;; first = false) {
+      if (dir < 0 && !moveOnce(!first)) break
+      let cur = lineObj.text.charAt(pos.ch) || "\n"
+      let type = isWordChar(cur, helper) ? "w"
+        : group && cur == "\n" ? "n"
+        : !group || /\s/.test(cur) ? null
+        : "p"
+      if (group && !first && !type) type = "s"
+      if (sawType && sawType != type) {
+        if (dir < 0) {dir = 1; moveOnce(); pos.sticky = "after"}
+        break
+      }
+
+      if (type) sawType = type
+      if (dir > 0 && !moveOnce(!first)) break
+    }
+  }
+  let result = skipAtomic(doc, pos, oldPos, origDir, true)
+  if (equalCursorPos(oldPos, result)) result.hitSide = true
+  return result
+}
+
+// For relative vertical movement. Dir may be -1 or 1. Unit can be
+// "page" or "line". The resulting position will have a hitSide=true
+// property if it reached the end of the document.
+function findPosV(cm, pos, dir, unit) {
+  let doc = cm.doc, x = pos.left, y
+  if (unit == "page") {
+    let pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight)
+    let moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3)
+    y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount
+
+  } else if (unit == "line") {
+    y = dir > 0 ? pos.bottom + 3 : pos.top - 3
+  }
+  let target
+  for (;;) {
+    target = coordsChar(cm, x, y)
+    if (!target.outside) break
+    if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break }
+    y += dir * 5
+  }
+  return target
+}
diff --git a/public/codemirror/src/edit/mouse_events.js b/public/codemirror/src/edit/mouse_events.js
new file mode 100644
index 000000000..0b96f4cfd
--- /dev/null
+++ b/public/codemirror/src/edit/mouse_events.js
@@ -0,0 +1,310 @@
+import { delayBlurEvent, ensureFocus } from "../display/focus"
+import { operation } from "../display/operations"
+import { visibleLines } from "../display/update_lines"
+import { clipPos, cmp, maxPos, minPos, Pos } from "../line/pos"
+import { getLine, lineAtHeight } from "../line/utils_line"
+import { posFromMouse } from "../measurement/position_measurement"
+import { eventInWidget } from "../measurement/widgets"
+import { normalizeSelection, Range, Selection } from "../model/selection"
+import { extendRange, extendSelection, replaceOneSelection, setSelection } from "../model/selection_updates"
+import { captureRightClick, chromeOS, ie, ie_version, mac, webkit } from "../util/browser"
+import { activeElt } from "../util/dom"
+import { e_button, e_defaultPrevented, e_preventDefault, e_target, hasHandler, off, on, signal, signalDOMEvent } from "../util/event"
+import { dragAndDrop } from "../util/feature_detection"
+import { bind, countColumn, findColumn, sel_mouse } from "../util/misc"
+
+// A mouse down can be a single click, double click, triple click,
+// start of selection drag, start of text drag, new cursor
+// (ctrl-click), rectangle drag (alt-drag), or xwin
+// middle-click-paste. Or it might be a click on something we should
+// not interfere with, such as a scrollbar or widget.
+export function onMouseDown(e) {
+  let cm = this, display = cm.display
+  if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) return
+  display.input.ensurePolled()
+  display.shift = e.shiftKey
+
+  if (eventInWidget(display, e)) {
+    if (!webkit) {
+      // Briefly turn off draggability, to allow widgets to do
+      // normal dragging things.
+      display.scroller.draggable = false
+      setTimeout(() => display.scroller.draggable = true, 100)
+    }
+    return
+  }
+  if (clickInGutter(cm, e)) return
+  let start = posFromMouse(cm, e)
+  window.focus()
+
+  switch (e_button(e)) {
+  case 1:
+    // #3261: make sure, that we're not starting a second selection
+    if (cm.state.selectingText)
+      cm.state.selectingText(e)
+    else if (start)
+      leftButtonDown(cm, e, start)
+    else if (e_target(e) == display.scroller)
+      e_preventDefault(e)
+    break
+  case 2:
+    if (webkit) cm.state.lastMiddleDown = +new Date
+    if (start) extendSelection(cm.doc, start)
+    setTimeout(() => display.input.focus(), 20)
+    e_preventDefault(e)
+    break
+  case 3:
+    if (captureRightClick) onContextMenu(cm, e)
+    else delayBlurEvent(cm)
+    break
+  }
+}
+
+let lastClick, lastDoubleClick
+function leftButtonDown(cm, e, start) {
+  if (ie) setTimeout(bind(ensureFocus, cm), 0)
+  else cm.curOp.focus = activeElt()
+
+  let now = +new Date, type
+  if (lastDoubleClick && lastDoubleClick.time > now - 400 && cmp(lastDoubleClick.pos, start) == 0) {
+    type = "triple"
+  } else if (lastClick && lastClick.time > now - 400 && cmp(lastClick.pos, start) == 0) {
+    type = "double"
+    lastDoubleClick = {time: now, pos: start}
+  } else {
+    type = "single"
+    lastClick = {time: now, pos: start}
+  }
+
+  let sel = cm.doc.sel, modifier = mac ? e.metaKey : e.ctrlKey, contained
+  if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() &&
+      type == "single" && (contained = sel.contains(start)) > -1 &&
+      (cmp((contained = sel.ranges[contained]).from(), start) < 0 || start.xRel > 0) &&
+      (cmp(contained.to(), start) > 0 || start.xRel < 0))
+    leftButtonStartDrag(cm, e, start, modifier)
+  else
+    leftButtonSelect(cm, e, start, type, modifier)
+}
+
+// Start a text drag. When it ends, see if any dragging actually
+// happen, and treat as a click if it didn't.
+function leftButtonStartDrag(cm, e, start, modifier) {
+  let display = cm.display, startTime = +new Date
+  let dragEnd = operation(cm, e2 => {
+    if (webkit) display.scroller.draggable = false
+    cm.state.draggingText = false
+    off(document, "mouseup", dragEnd)
+    off(display.scroller, "drop", dragEnd)
+    if (Math.abs(e.clientX - e2.clientX) + Math.abs(e.clientY - e2.clientY) < 10) {
+      e_preventDefault(e2)
+      if (!modifier && +new Date - 200 < startTime)
+        extendSelection(cm.doc, start)
+      // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081)
+      if (webkit || ie && ie_version == 9)
+        setTimeout(() => {document.body.focus(); display.input.focus()}, 20)
+      else
+        display.input.focus()
+    }
+  })
+  // Let the drag handler handle this.
+  if (webkit) display.scroller.draggable = true
+  cm.state.draggingText = dragEnd
+  dragEnd.copy = mac ? e.altKey : e.ctrlKey
+  // IE's approach to draggable
+  if (display.scroller.dragDrop) display.scroller.dragDrop()
+  on(document, "mouseup", dragEnd)
+  on(display.scroller, "drop", dragEnd)
+}
+
+// Normal selection, as opposed to text dragging.
+function leftButtonSelect(cm, e, start, type, addNew) {
+  let display = cm.display, doc = cm.doc
+  e_preventDefault(e)
+
+  let ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges
+  if (addNew && !e.shiftKey) {
+    ourIndex = doc.sel.contains(start)
+    if (ourIndex > -1)
+      ourRange = ranges[ourIndex]
+    else
+      ourRange = new Range(start, start)
+  } else {
+    ourRange = doc.sel.primary()
+    ourIndex = doc.sel.primIndex
+  }
+
+  if (chromeOS ? e.shiftKey && e.metaKey : e.altKey) {
+    type = "rect"
+    if (!addNew) ourRange = new Range(start, start)
+    start = posFromMouse(cm, e, true, true)
+    ourIndex = -1
+  } else if (type == "double") {
+    let word = cm.findWordAt(start)
+    if (cm.display.shift || doc.extend)
+      ourRange = extendRange(doc, ourRange, word.anchor, word.head)
+    else
+      ourRange = word
+  } else if (type == "triple") {
+    let line = new Range(Pos(start.line, 0), clipPos(doc, Pos(start.line + 1, 0)))
+    if (cm.display.shift || doc.extend)
+      ourRange = extendRange(doc, ourRange, line.anchor, line.head)
+    else
+      ourRange = line
+  } else {
+    ourRange = extendRange(doc, ourRange, start)
+  }
+
+  if (!addNew) {
+    ourIndex = 0
+    setSelection(doc, new Selection([ourRange], 0), sel_mouse)
+    startSel = doc.sel
+  } else if (ourIndex == -1) {
+    ourIndex = ranges.length
+    setSelection(doc, normalizeSelection(ranges.concat([ourRange]), ourIndex),
+                 {scroll: false, origin: "*mouse"})
+  } else if (ranges.length > 1 && ranges[ourIndex].empty() && type == "single" && !e.shiftKey) {
+    setSelection(doc, normalizeSelection(ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0),
+                 {scroll: false, origin: "*mouse"})
+    startSel = doc.sel
+  } else {
+    replaceOneSelection(doc, ourIndex, ourRange, sel_mouse)
+  }
+
+  let lastPos = start
+  function extendTo(pos) {
+    if (cmp(lastPos, pos) == 0) return
+    lastPos = pos
+
+    if (type == "rect") {
+      let ranges = [], tabSize = cm.options.tabSize
+      let startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize)
+      let posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize)
+      let left = Math.min(startCol, posCol), right = Math.max(startCol, posCol)
+      for (let line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line));
+           line <= end; line++) {
+        let text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize)
+        if (left == right)
+          ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos)))
+        else if (text.length > leftPos)
+          ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize))))
+      }
+      if (!ranges.length) ranges.push(new Range(start, start))
+      setSelection(doc, normalizeSelection(startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex),
+                   {origin: "*mouse", scroll: false})
+      cm.scrollIntoView(pos)
+    } else {
+      let oldRange = ourRange
+      let anchor = oldRange.anchor, head = pos
+      if (type != "single") {
+        let range
+        if (type == "double")
+          range = cm.findWordAt(pos)
+        else
+          range = new Range(Pos(pos.line, 0), clipPos(doc, Pos(pos.line + 1, 0)))
+        if (cmp(range.anchor, anchor) > 0) {
+          head = range.head
+          anchor = minPos(oldRange.from(), range.anchor)
+        } else {
+          head = range.anchor
+          anchor = maxPos(oldRange.to(), range.head)
+        }
+      }
+      let ranges = startSel.ranges.slice(0)
+      ranges[ourIndex] = new Range(clipPos(doc, anchor), head)
+      setSelection(doc, normalizeSelection(ranges, ourIndex), sel_mouse)
+    }
+  }
+
+  let editorSize = display.wrapper.getBoundingClientRect()
+  // Used to ensure timeout re-tries don't fire when another extend
+  // happened in the meantime (clearTimeout isn't reliable -- at
+  // least on Chrome, the timeouts still happen even when cleared,
+  // if the clear happens after their scheduled firing time).
+  let counter = 0
+
+  function extend(e) {
+    let curCount = ++counter
+    let cur = posFromMouse(cm, e, true, type == "rect")
+    if (!cur) return
+    if (cmp(cur, lastPos) != 0) {
+      cm.curOp.focus = activeElt()
+      extendTo(cur)
+      let visible = visibleLines(display, doc)
+      if (cur.line >= visible.to || cur.line < visible.from)
+        setTimeout(operation(cm, () => {if (counter == curCount) extend(e)}), 150)
+    } else {
+      let outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0
+      if (outside) setTimeout(operation(cm, () => {
+        if (counter != curCount) return
+        display.scroller.scrollTop += outside
+        extend(e)
+      }), 50)
+    }
+  }
+
+  function done(e) {
+    cm.state.selectingText = false
+    counter = Infinity
+    e_preventDefault(e)
+    display.input.focus()
+    off(document, "mousemove", move)
+    off(document, "mouseup", up)
+    doc.history.lastSelOrigin = null
+  }
+
+  let move = operation(cm, e => {
+    if (!e_button(e)) done(e)
+    else extend(e)
+  })
+  let up = operation(cm, done)
+  cm.state.selectingText = up
+  on(document, "mousemove", move)
+  on(document, "mouseup", up)
+}
+
+
+// Determines whether an event happened in the gutter, and fires the
+// handlers for the corresponding event.
+function gutterEvent(cm, e, type, prevent) {
+  let mX, mY
+  try { mX = e.clientX; mY = e.clientY }
+  catch(e) { return false }
+  if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) return false
+  if (prevent) e_preventDefault(e)
+
+  let display = cm.display
+  let lineBox = display.lineDiv.getBoundingClientRect()
+
+  if (mY > lineBox.bottom || !hasHandler(cm, type)) return e_defaultPrevented(e)
+  mY -= lineBox.top - display.viewOffset
+
+  for (let i = 0; i < cm.options.gutters.length; ++i) {
+    let g = display.gutters.childNodes[i]
+    if (g && g.getBoundingClientRect().right >= mX) {
+      let line = lineAtHeight(cm.doc, mY)
+      let gutter = cm.options.gutters[i]
+      signal(cm, type, cm, line, gutter, e)
+      return e_defaultPrevented(e)
+    }
+  }
+}
+
+export function clickInGutter(cm, e) {
+  return gutterEvent(cm, e, "gutterClick", true)
+}
+
+// CONTEXT MENU HANDLING
+
+// To make the context menu work, we need to briefly unhide the
+// textarea (making it as unobtrusive as possible) to let the
+// right-click take effect on it.
+export function onContextMenu(cm, e) {
+  if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) return
+  if (signalDOMEvent(cm, e, "contextmenu")) return
+  cm.display.input.onContextMenu(e)
+}
+
+function contextMenuInGutter(cm, e) {
+  if (!hasHandler(cm, "gutterContextMenu")) return false
+  return gutterEvent(cm, e, "gutterContextMenu", false)
+}
diff --git a/public/codemirror/src/edit/options.js b/public/codemirror/src/edit/options.js
new file mode 100644
index 000000000..930c41dd2
--- /dev/null
+++ b/public/codemirror/src/edit/options.js
@@ -0,0 +1,191 @@
+import { onBlur } from "../display/focus"
+import { setGuttersForLineNumbers, updateGutters } from "../display/gutters"
+import { alignHorizontally } from "../display/line_numbers"
+import { loadMode, resetModeState } from "../display/mode_state"
+import { initScrollbars, updateScrollbars } from "../display/scrollbars"
+import { updateSelection } from "../display/selection"
+import { regChange } from "../display/view_tracking"
+import { getKeyMap } from "../input/keymap"
+import { defaultSpecialCharPlaceholder } from "../line/line_data"
+import { Pos } from "../line/pos"
+import { findMaxLine } from "../line/spans"
+import { clearCaches, compensateForHScroll, estimateLineHeights } from "../measurement/position_measurement"
+import { replaceRange } from "../model/changes"
+import { mobile, windows } from "../util/browser"
+import { addClass, rmClass } from "../util/dom"
+import { off, on } from "../util/event"
+
+import { themeChanged } from "./utils"
+
+export let Init = {toString: function(){return "CodeMirror.Init"}}
+
+export let defaults = {}
+export let optionHandlers = {}
+
+export function defineOptions(CodeMirror) {
+  let optionHandlers = CodeMirror.optionHandlers
+
+  function option(name, deflt, handle, notOnInit) {
+    CodeMirror.defaults[name] = deflt
+    if (handle) optionHandlers[name] =
+      notOnInit ? (cm, val, old) => {if (old != Init) handle(cm, val, old)} : handle
+  }
+
+  CodeMirror.defineOption = option
+
+  // Passed to option handlers when there is no old value.
+  CodeMirror.Init = Init
+
+  // These two are, on init, called from the constructor because they
+  // have to be initialized before the editor can start at all.
+  option("value", "", (cm, val) => cm.setValue(val), true)
+  option("mode", null, (cm, val) => {
+    cm.doc.modeOption = val
+    loadMode(cm)
+  }, true)
+
+  option("indentUnit", 2, loadMode, true)
+  option("indentWithTabs", false)
+  option("smartIndent", true)
+  option("tabSize", 4, cm => {
+    resetModeState(cm)
+    clearCaches(cm)
+    regChange(cm)
+  }, true)
+  option("lineSeparator", null, (cm, val) => {
+    cm.doc.lineSep = val
+    if (!val) return
+    let newBreaks = [], lineNo = cm.doc.first
+    cm.doc.iter(line => {
+      for (let pos = 0;;) {
+        let found = line.text.indexOf(val, pos)
+        if (found == -1) break
+        pos = found + val.length
+        newBreaks.push(Pos(lineNo, found))
+      }
+      lineNo++
+    })
+    for (let i = newBreaks.length - 1; i >= 0; i--)
+      replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length))
+  })
+  option("specialChars", /[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b-\u200f\u2028\u2029\ufeff]/g, (cm, val, old) => {
+    cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g")
+    if (old != Init) cm.refresh()
+  })
+  option("specialCharPlaceholder", defaultSpecialCharPlaceholder, cm => cm.refresh(), true)
+  option("electricChars", true)
+  option("inputStyle", mobile ? "contenteditable" : "textarea", () => {
+    throw new Error("inputStyle can not (yet) be changed in a running editor") // FIXME
+  }, true)
+  option("spellcheck", false, (cm, val) => cm.getInputField().spellcheck = val, true)
+  option("rtlMoveVisually", !windows)
+  option("wholeLineUpdateBefore", true)
+
+  option("theme", "default", cm => {
+    themeChanged(cm)
+    guttersChanged(cm)
+  }, true)
+  option("keyMap", "default", (cm, val, old) => {
+    let next = getKeyMap(val)
+    let prev = old != Init && getKeyMap(old)
+    if (prev && prev.detach) prev.detach(cm, next)
+    if (next.attach) next.attach(cm, prev || null)
+  })
+  option("extraKeys", null)
+
+  option("lineWrapping", false, wrappingChanged, true)
+  option("gutters", [], cm => {
+    setGuttersForLineNumbers(cm.options)
+    guttersChanged(cm)
+  }, true)
+  option("fixedGutter", true, (cm, val) => {
+    cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0"
+    cm.refresh()
+  }, true)
+  option("coverGutterNextToScrollbar", false, cm => updateScrollbars(cm), true)
+  option("scrollbarStyle", "native", cm => {
+    initScrollbars(cm)
+    updateScrollbars(cm)
+    cm.display.scrollbars.setScrollTop(cm.doc.scrollTop)
+    cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft)
+  }, true)
+  option("lineNumbers", false, cm => {
+    setGuttersForLineNumbers(cm.options)
+    guttersChanged(cm)
+  }, true)
+  option("firstLineNumber", 1, guttersChanged, true)
+  option("lineNumberFormatter", integer => integer, guttersChanged, true)
+  option("showCursorWhenSelecting", false, updateSelection, true)
+
+  option("resetSelectionOnContextMenu", true)
+  option("lineWiseCopyCut", true)
+
+  option("readOnly", false, (cm, val) => {
+    if (val == "nocursor") {
+      onBlur(cm)
+      cm.display.input.blur()
+      cm.display.disabled = true
+    } else {
+      cm.display.disabled = false
+    }
+    cm.display.input.readOnlyChanged(val)
+  })
+  option("disableInput", false, (cm, val) => {if (!val) cm.display.input.reset()}, true)
+  option("dragDrop", true, dragDropChanged)
+  option("allowDropFileTypes", null)
+
+  option("cursorBlinkRate", 530)
+  option("cursorScrollMargin", 0)
+  option("cursorHeight", 1, updateSelection, true)
+  option("singleCursorHeightPerLine", true, updateSelection, true)
+  option("workTime", 100)
+  option("workDelay", 100)
+  option("flattenSpans", true, resetModeState, true)
+  option("addModeClass", false, resetModeState, true)
+  option("pollInterval", 100)
+  option("undoDepth", 200, (cm, val) => cm.doc.history.undoDepth = val)
+  option("historyEventDelay", 1250)
+  option("viewportMargin", 10, cm => cm.refresh(), true)
+  option("maxHighlightLength", 10000, resetModeState, true)
+  option("moveInputWithCursor", true, (cm, val) => {
+    if (!val) cm.display.input.resetPosition()
+  })
+
+  option("tabindex", null, (cm, val) => cm.display.input.getField().tabIndex = val || "")
+  option("autofocus", null)
+  option("direction", "ltr", (cm, val) => cm.doc.setDirection(val), true)
+}
+
+function guttersChanged(cm) {
+  updateGutters(cm)
+  regChange(cm)
+  alignHorizontally(cm)
+}
+
+function dragDropChanged(cm, value, old) {
+  let wasOn = old && old != Init
+  if (!value != !wasOn) {
+    let funcs = cm.display.dragFunctions
+    let toggle = value ? on : off
+    toggle(cm.display.scroller, "dragstart", funcs.start)
+    toggle(cm.display.scroller, "dragenter", funcs.enter)
+    toggle(cm.display.scroller, "dragover", funcs.over)
+    toggle(cm.display.scroller, "dragleave", funcs.leave)
+    toggle(cm.display.scroller, "drop", funcs.drop)
+  }
+}
+
+function wrappingChanged(cm) {
+  if (cm.options.lineWrapping) {
+    addClass(cm.display.wrapper, "CodeMirror-wrap")
+    cm.display.sizer.style.minWidth = ""
+    cm.display.sizerWidth = null
+  } else {
+    rmClass(cm.display.wrapper, "CodeMirror-wrap")
+    findMaxLine(cm)
+  }
+  estimateLineHeights(cm)
+  regChange(cm)
+  clearCaches(cm)
+  setTimeout(() => updateScrollbars(cm), 100)
+}
diff --git a/public/codemirror/src/edit/utils.js b/public/codemirror/src/edit/utils.js
new file mode 100644
index 000000000..61f795572
--- /dev/null
+++ b/public/codemirror/src/edit/utils.js
@@ -0,0 +1,7 @@
+import { clearCaches } from "../measurement/position_measurement"
+
+export function themeChanged(cm) {
+  cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") +
+    cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-")
+  clearCaches(cm)
+}
diff --git a/public/codemirror/src/input/ContentEditableInput.js b/public/codemirror/src/input/ContentEditableInput.js
new file mode 100644
index 000000000..7e7fca9a8
--- /dev/null
+++ b/public/codemirror/src/input/ContentEditableInput.js
@@ -0,0 +1,513 @@
+import { operation, runInOp } from "../display/operations"
+import { prepareSelection } from "../display/selection"
+import { regChange } from "../display/view_tracking"
+import { applyTextInput, copyableRanges, disableBrowserMagic, handlePaste, hiddenTextarea, lastCopied, setLastCopied } from "./input"
+import { cmp, maxPos, minPos, Pos } from "../line/pos"
+import { getBetween, getLine, lineNo } from "../line/utils_line"
+import { findViewForLine, findViewIndex, mapFromLineView, nodeAndOffsetInLineMap } from "../measurement/position_measurement"
+import { replaceRange } from "../model/changes"
+import { simpleSelection } from "../model/selection"
+import { setSelection } from "../model/selection_updates"
+import { getBidiPartAt, getOrder } from "../util/bidi"
+import { gecko, ie_version } from "../util/browser"
+import { contains, range, removeChildrenAndAdd, selectInput } from "../util/dom"
+import { on, signalDOMEvent } from "../util/event"
+import { Delayed, lst, sel_dontScroll } from "../util/misc"
+import { chrome, android } from "../util/browser"
+
+// CONTENTEDITABLE INPUT STYLE
+
+export default class ContentEditableInput {
+  constructor(cm) {
+    this.cm = cm
+    this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null
+    this.polling = new Delayed()
+    this.composing = null
+    this.gracePeriod = false
+    this.readDOMTimeout = null
+  }
+
+  init(display) {
+    let input = this, cm = input.cm
+    let div = input.div = display.lineDiv
+    disableBrowserMagic(div, cm.options.spellcheck)
+
+    on(div, "paste", e => {
+      if (signalDOMEvent(cm, e) || handlePaste(e, cm)) return
+      // IE doesn't fire input events, so we schedule a read for the pasted content in this way
+      if (ie_version <= 11) setTimeout(operation(cm, () => this.updateFromDOM()), 20)
+    })
+
+    on(div, "compositionstart", e => {
+      this.composing = {data: e.data, done: false}
+    })
+    on(div, "compositionupdate", e => {
+      if (!this.composing) this.composing = {data: e.data, done: false}
+    })
+    on(div, "compositionend", e => {
+      if (this.composing) {
+        if (e.data != this.composing.data) this.readFromDOMSoon()
+        this.composing.done = true
+      }
+    })
+
+    on(div, "touchstart", () => input.forceCompositionEnd())
+
+    on(div, "input", () => {
+      if (!this.composing) this.readFromDOMSoon()
+    })
+
+    function onCopyCut(e) {
+      if (signalDOMEvent(cm, e)) return
+      if (cm.somethingSelected()) {
+        setLastCopied({lineWise: false, text: cm.getSelections()})
+        if (e.type == "cut") cm.replaceSelection("", null, "cut")
+      } else if (!cm.options.lineWiseCopyCut) {
+        return
+      } else {
+        let ranges = copyableRanges(cm)
+        setLastCopied({lineWise: true, text: ranges.text})
+        if (e.type == "cut") {
+          cm.operation(() => {
+            cm.setSelections(ranges.ranges, 0, sel_dontScroll)
+            cm.replaceSelection("", null, "cut")
+          })
+        }
+      }
+      if (e.clipboardData) {
+        e.clipboardData.clearData()
+        let content = lastCopied.text.join("\n")
+        // iOS exposes the clipboard API, but seems to discard content inserted into it
+        e.clipboardData.setData("Text", content)
+        if (e.clipboardData.getData("Text") == content) {
+          e.preventDefault()
+          return
+        }
+      }
+      // Old-fashioned briefly-focus-a-textarea hack
+      let kludge = hiddenTextarea(), te = kludge.firstChild
+      cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild)
+      te.value = lastCopied.text.join("\n")
+      let hadFocus = document.activeElement
+      selectInput(te)
+      setTimeout(() => {
+        cm.display.lineSpace.removeChild(kludge)
+        hadFocus.focus()
+        if (hadFocus == div) input.showPrimarySelection()
+      }, 50)
+    }
+    on(div, "copy", onCopyCut)
+    on(div, "cut", onCopyCut)
+  }
+
+  prepareSelection() {
+    let result = prepareSelection(this.cm, false)
+    result.focus = this.cm.state.focused
+    return result
+  }
+
+  showSelection(info, takeFocus) {
+    if (!info || !this.cm.display.view.length) return
+    if (info.focus || takeFocus) this.showPrimarySelection()
+    this.showMultipleSelections(info)
+  }
+
+  showPrimarySelection() {
+    let sel = window.getSelection(), prim = this.cm.doc.sel.primary()
+    let curAnchor = domToPos(this.cm, sel.anchorNode, sel.anchorOffset)
+    let curFocus = domToPos(this.cm, sel.focusNode, sel.focusOffset)
+    if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad &&
+        cmp(minPos(curAnchor, curFocus), prim.from()) == 0 &&
+        cmp(maxPos(curAnchor, curFocus), prim.to()) == 0)
+      return
+
+    let start = posToDOM(this.cm, prim.from())
+    let end = posToDOM(this.cm, prim.to())
+    if (!start && !end) {
+      sel.removeAllRanges()
+      return
+    }
+
+    let view = this.cm.display.view
+    let old = sel.rangeCount && sel.getRangeAt(0)
+    if (!start) {
+      start = {node: view[0].measure.map[2], offset: 0}
+    } else if (!end) { // FIXME dangerously hacky
+      let measure = view[view.length - 1].measure
+      let map = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map
+      end = {node: map[map.length - 1], offset: map[map.length - 2] - map[map.length - 3]}
+    }
+
+    let rng
+    try { rng = range(start.node, start.offset, end.offset, end.node) }
+    catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible
+    if (rng) {
+      if (!gecko && this.cm.state.focused) {
+        sel.collapse(start.node, start.offset)
+        if (!rng.collapsed) {
+          sel.removeAllRanges()
+          sel.addRange(rng)
+        }
+      } else {
+        sel.removeAllRanges()
+        sel.addRange(rng)
+      }
+      if (old && sel.anchorNode == null) sel.addRange(old)
+      else if (gecko) this.startGracePeriod()
+    }
+    this.rememberSelection()
+  }
+
+  startGracePeriod() {
+    clearTimeout(this.gracePeriod)
+    this.gracePeriod = setTimeout(() => {
+      this.gracePeriod = false
+      if (this.selectionChanged())
+        this.cm.operation(() => this.cm.curOp.selectionChanged = true)
+    }, 20)
+  }
+
+  showMultipleSelections(info) {
+    removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors)
+    removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection)
+  }
+
+  rememberSelection() {
+    let sel = window.getSelection()
+    this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset
+    this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset
+  }
+
+  selectionInEditor() {
+    let sel = window.getSelection()
+    if (!sel.rangeCount) return false
+    let node = sel.getRangeAt(0).commonAncestorContainer
+    return contains(this.div, node)
+  }
+
+  focus() {
+    if (this.cm.options.readOnly != "nocursor") {
+      if (!this.selectionInEditor())
+        this.showSelection(this.prepareSelection(), true)
+      this.div.focus()
+    }
+  }
+  blur() { this.div.blur() }
+  getField() { return this.div }
+
+  supportsTouch() { return true }
+
+  receivedFocus() {
+    let input = this
+    if (this.selectionInEditor())
+      this.pollSelection()
+    else
+      runInOp(this.cm, () => input.cm.curOp.selectionChanged = true)
+
+    function poll() {
+      if (input.cm.state.focused) {
+        input.pollSelection()
+        input.polling.set(input.cm.options.pollInterval, poll)
+      }
+    }
+    this.polling.set(this.cm.options.pollInterval, poll)
+  }
+
+  selectionChanged() {
+    let sel = window.getSelection()
+    return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset ||
+      sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset
+  }
+
+  pollSelection() {
+    if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) return
+    let sel = window.getSelection(), cm = this.cm
+    // On Android Chrome (version 56, at least), backspacing into an
+    // uneditable block element will put the cursor in that element,
+    // and then, because it's not editable, hide the virtual keyboard.
+    // Because Android doesn't allow us to actually detect backspace
+    // presses in a sane way, this code checks for when that happens
+    // and simulates a backspace press in this case.
+    if (android && chrome && this.cm.options.gutters.length && isInGutter(sel.anchorNode)) {
+      this.cm.triggerOnKeyDown({type: "keydown", keyCode: 8, preventDefault: Math.abs})
+      this.blur()
+      this.focus()
+      return
+    }
+    if (this.composing) return
+    this.rememberSelection()
+    let anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset)
+    let head = domToPos(cm, sel.focusNode, sel.focusOffset)
+    if (anchor && head) runInOp(cm, () => {
+      setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll)
+      if (anchor.bad || head.bad) cm.curOp.selectionChanged = true
+    })
+  }
+
+  pollContent() {
+    if (this.readDOMTimeout != null) {
+      clearTimeout(this.readDOMTimeout)
+      this.readDOMTimeout = null
+    }
+
+    let cm = this.cm, display = cm.display, sel = cm.doc.sel.primary()
+    let from = sel.from(), to = sel.to()
+    if (from.ch == 0 && from.line > cm.firstLine())
+      from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length)
+    if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine())
+      to = Pos(to.line + 1, 0)
+    if (from.line < display.viewFrom || to.line > display.viewTo - 1) return false
+
+    let fromIndex, fromLine, fromNode
+    if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) {
+      fromLine = lineNo(display.view[0].line)
+      fromNode = display.view[0].node
+    } else {
+      fromLine = lineNo(display.view[fromIndex].line)
+      fromNode = display.view[fromIndex - 1].node.nextSibling
+    }
+    let toIndex = findViewIndex(cm, to.line)
+    let toLine, toNode
+    if (toIndex == display.view.length - 1) {
+      toLine = display.viewTo - 1
+      toNode = display.lineDiv.lastChild
+    } else {
+      toLine = lineNo(display.view[toIndex + 1].line) - 1
+      toNode = display.view[toIndex + 1].node.previousSibling
+    }
+
+    if (!fromNode) return false
+    let newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine))
+    let oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length))
+    while (newText.length > 1 && oldText.length > 1) {
+      if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine-- }
+      else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++ }
+      else break
+    }
+
+    let cutFront = 0, cutEnd = 0
+    let newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length)
+    while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront))
+      ++cutFront
+    let newBot = lst(newText), oldBot = lst(oldText)
+    let maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0),
+                             oldBot.length - (oldText.length == 1 ? cutFront : 0))
+    while (cutEnd < maxCutEnd &&
+           newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1))
+      ++cutEnd
+    // Try to move start of change to start of selection if ambiguous
+    if (newText.length == 1 && oldText.length == 1 && fromLine == from.line) {
+      while (cutFront && cutFront > from.ch &&
+             newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) {
+        cutFront--
+        cutEnd++
+      }
+    }
+
+    newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\u200b+/, "")
+    newText[0] = newText[0].slice(cutFront).replace(/\u200b+$/, "")
+
+    let chFrom = Pos(fromLine, cutFront)
+    let chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0)
+    if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) {
+      replaceRange(cm.doc, newText, chFrom, chTo, "+input")
+      return true
+    }
+  }
+
+  ensurePolled() {
+    this.forceCompositionEnd()
+  }
+  reset() {
+    this.forceCompositionEnd()
+  }
+  forceCompositionEnd() {
+    if (!this.composing) return
+    clearTimeout(this.readDOMTimeout)
+    this.composing = null
+    this.updateFromDOM()
+    this.div.blur()
+    this.div.focus()
+  }
+  readFromDOMSoon() {
+    if (this.readDOMTimeout != null) return
+    this.readDOMTimeout = setTimeout(() => {
+      this.readDOMTimeout = null
+      if (this.composing) {
+        if (this.composing.done) this.composing = null
+        else return
+      }
+      this.updateFromDOM()
+    }, 80)
+  }
+
+  updateFromDOM() {
+    if (this.cm.isReadOnly() || !this.pollContent())
+      runInOp(this.cm, () => regChange(this.cm))
+  }
+
+  setUneditable(node) {
+    node.contentEditable = "false"
+  }
+
+  onKeyPress(e) {
+    if (e.charCode == 0) return
+    e.preventDefault()
+    if (!this.cm.isReadOnly())
+      operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0)
+  }
+
+  readOnlyChanged(val) {
+    this.div.contentEditable = String(val != "nocursor")
+  }
+
+  onContextMenu() {}
+  resetPosition() {}
+}
+
+ContentEditableInput.prototype.needsContentAttribute = true
+
+function posToDOM(cm, pos) {
+  let view = findViewForLine(cm, pos.line)
+  if (!view || view.hidden) return null
+  let line = getLine(cm.doc, pos.line)
+  let info = mapFromLineView(view, line, pos.line)
+
+  let order = getOrder(line, cm.doc.direction), side = "left"
+  if (order) {
+    let partPos = getBidiPartAt(order, pos.ch)
+    side = partPos % 2 ? "right" : "left"
+  }
+  let result = nodeAndOffsetInLineMap(info.map, pos.ch, side)
+  result.offset = result.collapse == "right" ? result.end : result.start
+  return result
+}
+
+function isInGutter(node) {
+  for (let scan = node; scan; scan = scan.parentNode)
+    if (/CodeMirror-gutter-wrapper/.test(scan.className)) return true
+  return false
+}
+
+function badPos(pos, bad) { if (bad) pos.bad = true; return pos }
+
+function domTextBetween(cm, from, to, fromLine, toLine) {
+  let text = "", closing = false, lineSep = cm.doc.lineSeparator()
+  function recognizeMarker(id) { return marker => marker.id == id }
+  function close() {
+    if (closing) {
+      text += lineSep
+      closing = false
+    }
+  }
+  function addText(str) {
+    if (str) {
+      close()
+      text += str
+    }
+  }
+  function walk(node) {
+    if (node.nodeType == 1) {
+      let cmText = node.getAttribute("cm-text")
+      if (cmText != null) {
+        addText(cmText || node.textContent.replace(/\u200b/g, ""))
+        return
+      }
+      let markerID = node.getAttribute("cm-marker"), range
+      if (markerID) {
+        let found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID))
+        if (found.length && (range = found[0].find()))
+          addText(getBetween(cm.doc, range.from, range.to).join(lineSep))
+        return
+      }
+      if (node.getAttribute("contenteditable") == "false") return
+      let isBlock = /^(pre|div|p)$/i.test(node.nodeName)
+      if (isBlock) close()
+      for (let i = 0; i < node.childNodes.length; i++)
+        walk(node.childNodes[i])
+      if (isBlock) closing = true
+    } else if (node.nodeType == 3) {
+      addText(node.nodeValue)
+    }
+  }
+  for (;;) {
+    walk(from)
+    if (from == to) break
+    from = from.nextSibling
+  }
+  return text
+}
+
+function domToPos(cm, node, offset) {
+  let lineNode
+  if (node == cm.display.lineDiv) {
+    lineNode = cm.display.lineDiv.childNodes[offset]
+    if (!lineNode) return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true)
+    node = null; offset = 0
+  } else {
+    for (lineNode = node;; lineNode = lineNode.parentNode) {
+      if (!lineNode || lineNode == cm.display.lineDiv) return null
+      if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) break
+    }
+  }
+  for (let i = 0; i < cm.display.view.length; i++) {
+    let lineView = cm.display.view[i]
+    if (lineView.node == lineNode)
+      return locateNodeInLineView(lineView, node, offset)
+  }
+}
+
+function locateNodeInLineView(lineView, node, offset) {
+  let wrapper = lineView.text.firstChild, bad = false
+  if (!node || !contains(wrapper, node)) return badPos(Pos(lineNo(lineView.line), 0), true)
+  if (node == wrapper) {
+    bad = true
+    node = wrapper.childNodes[offset]
+    offset = 0
+    if (!node) {
+      let line = lineView.rest ? lst(lineView.rest) : lineView.line
+      return badPos(Pos(lineNo(line), line.text.length), bad)
+    }
+  }
+
+  let textNode = node.nodeType == 3 ? node : null, topNode = node
+  if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) {
+    textNode = node.firstChild
+    if (offset) offset = textNode.nodeValue.length
+  }
+  while (topNode.parentNode != wrapper) topNode = topNode.parentNode
+  let measure = lineView.measure, maps = measure.maps
+
+  function find(textNode, topNode, offset) {
+    for (let i = -1; i < (maps ? maps.length : 0); i++) {
+      let map = i < 0 ? measure.map : maps[i]
+      for (let j = 0; j < map.length; j += 3) {
+        let curNode = map[j + 2]
+        if (curNode == textNode || curNode == topNode) {
+          let line = lineNo(i < 0 ? lineView.line : lineView.rest[i])
+          let ch = map[j] + offset
+          if (offset < 0 || curNode != textNode) ch = map[j + (offset ? 1 : 0)]
+          return Pos(line, ch)
+        }
+      }
+    }
+  }
+  let found = find(textNode, topNode, offset)
+  if (found) return badPos(found, bad)
+
+  // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems
+  for (let after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) {
+    found = find(after, after.firstChild, 0)
+    if (found)
+      return badPos(Pos(found.line, found.ch - dist), bad)
+    else
+      dist += after.textContent.length
+  }
+  for (let before = topNode.previousSibling, dist = offset; before; before = before.previousSibling) {
+    found = find(before, before.firstChild, -1)
+    if (found)
+      return badPos(Pos(found.line, found.ch + dist), bad)
+    else
+      dist += before.textContent.length
+  }
+}
diff --git a/public/codemirror/src/input/TextareaInput.js b/public/codemirror/src/input/TextareaInput.js
new file mode 100644
index 000000000..85d2c0054
--- /dev/null
+++ b/public/codemirror/src/input/TextareaInput.js
@@ -0,0 +1,362 @@
+import { operation, runInOp } from "../display/operations"
+import { prepareSelection } from "../display/selection"
+import { applyTextInput, copyableRanges, handlePaste, hiddenTextarea, lastCopied, setLastCopied } from "./input"
+import { cursorCoords, posFromMouse } from "../measurement/position_measurement"
+import { eventInWidget } from "../measurement/widgets"
+import { simpleSelection } from "../model/selection"
+import { selectAll, setSelection } from "../model/selection_updates"
+import { captureRightClick, ie, ie_version, ios, mac, mobile, presto, webkit } from "../util/browser"
+import { activeElt, removeChildrenAndAdd, selectInput } from "../util/dom"
+import { e_preventDefault, e_stop, off, on, signalDOMEvent } from "../util/event"
+import { hasCopyEvent, hasSelection } from "../util/feature_detection"
+import { Delayed, sel_dontScroll } from "../util/misc"
+
+// TEXTAREA INPUT STYLE
+
+export default class TextareaInput {
+  constructor(cm) {
+    this.cm = cm
+    // See input.poll and input.reset
+    this.prevInput = ""
+
+    // Flag that indicates whether we expect input to appear real soon
+    // now (after some event like 'keypress' or 'input') and are
+    // polling intensively.
+    this.pollingFast = false
+    // Self-resetting timeout for the poller
+    this.polling = new Delayed()
+    // Tracks when input.reset has punted to just putting a short
+    // string into the textarea instead of the full selection.
+    this.inaccurateSelection = false
+    // Used to work around IE issue with selection being forgotten when focus moves away from textarea
+    this.hasSelection = false
+    this.composing = null
+  }
+
+  init(display) {
+    let input = this, cm = this.cm
+
+    // Wraps and hides input textarea
+    let div = this.wrapper = hiddenTextarea()
+    // The semihidden textarea that is focused when the editor is
+    // focused, and receives input.
+    let te = this.textarea = div.firstChild
+    display.wrapper.insertBefore(div, display.wrapper.firstChild)
+
+    // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore)
+    if (ios) te.style.width = "0px"
+
+    on(te, "input", () => {
+      if (ie && ie_version >= 9 && this.hasSelection) this.hasSelection = null
+      input.poll()
+    })
+
+    on(te, "paste", e => {
+      if (signalDOMEvent(cm, e) || handlePaste(e, cm)) return
+
+      cm.state.pasteIncoming = true
+      input.fastPoll()
+    })
+
+    function prepareCopyCut(e) {
+      if (signalDOMEvent(cm, e)) return
+      if (cm.somethingSelected()) {
+        setLastCopied({lineWise: false, text: cm.getSelections()})
+        if (input.inaccurateSelection) {
+          input.prevInput = ""
+          input.inaccurateSelection = false
+          te.value = lastCopied.text.join("\n")
+          selectInput(te)
+        }
+      } else if (!cm.options.lineWiseCopyCut) {
+        return
+      } else {
+        let ranges = copyableRanges(cm)
+        setLastCopied({lineWise: true, text: ranges.text})
+        if (e.type == "cut") {
+          cm.setSelections(ranges.ranges, null, sel_dontScroll)
+        } else {
+          input.prevInput = ""
+          te.value = ranges.text.join("\n")
+          selectInput(te)
+        }
+      }
+      if (e.type == "cut") cm.state.cutIncoming = true
+    }
+    on(te, "cut", prepareCopyCut)
+    on(te, "copy", prepareCopyCut)
+
+    on(display.scroller, "paste", e => {
+      if (eventInWidget(display, e) || signalDOMEvent(cm, e)) return
+      cm.state.pasteIncoming = true
+      input.focus()
+    })
+
+    // Prevent normal selection in the editor (we handle our own)
+    on(display.lineSpace, "selectstart", e => {
+      if (!eventInWidget(display, e)) e_preventDefault(e)
+    })
+
+    on(te, "compositionstart", () => {
+      let start = cm.getCursor("from")
+      if (input.composing) input.composing.range.clear()
+      input.composing = {
+        start: start,
+        range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"})
+      }
+    })
+    on(te, "compositionend", () => {
+      if (input.composing) {
+        input.poll()
+        input.composing.range.clear()
+        input.composing = null
+      }
+    })
+  }
+
+  prepareSelection() {
+    // Redraw the selection and/or cursor
+    let cm = this.cm, display = cm.display, doc = cm.doc
+    let result = prepareSelection(cm)
+
+    // Move the hidden textarea near the cursor to prevent scrolling artifacts
+    if (cm.options.moveInputWithCursor) {
+      let headPos = cursorCoords(cm, doc.sel.primary().head, "div")
+      let wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect()
+      result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10,
+                                          headPos.top + lineOff.top - wrapOff.top))
+      result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10,
+                                           headPos.left + lineOff.left - wrapOff.left))
+    }
+
+    return result
+  }
+
+  showSelection(drawn) {
+    let cm = this.cm, display = cm.display
+    removeChildrenAndAdd(display.cursorDiv, drawn.cursors)
+    removeChildrenAndAdd(display.selectionDiv, drawn.selection)
+    if (drawn.teTop != null) {
+      this.wrapper.style.top = drawn.teTop + "px"
+      this.wrapper.style.left = drawn.teLeft + "px"
+    }
+  }
+
+  // Reset the input to correspond to the selection (or to be empty,
+  // when not typing and nothing is selected)
+  reset(typing) {
+    if (this.contextMenuPending) return
+    let minimal, selected, cm = this.cm, doc = cm.doc
+    if (cm.somethingSelected()) {
+      this.prevInput = ""
+      let range = doc.sel.primary()
+      minimal = hasCopyEvent &&
+        (range.to().line - range.from().line > 100 || (selected = cm.getSelection()).length > 1000)
+      let content = minimal ? "-" : selected || cm.getSelection()
+      this.textarea.value = content
+      if (cm.state.focused) selectInput(this.textarea)
+      if (ie && ie_version >= 9) this.hasSelection = content
+    } else if (!typing) {
+      this.prevInput = this.textarea.value = ""
+      if (ie && ie_version >= 9) this.hasSelection = null
+    }
+    this.inaccurateSelection = minimal
+  }
+
+  getField() { return this.textarea }
+
+  supportsTouch() { return false }
+
+  focus() {
+    if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) {
+      try { this.textarea.focus() }
+      catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM
+    }
+  }
+
+  blur() { this.textarea.blur() }
+
+  resetPosition() {
+    this.wrapper.style.top = this.wrapper.style.left = 0
+  }
+
+  receivedFocus() { this.slowPoll() }
+
+  // Poll for input changes, using the normal rate of polling. This
+  // runs as long as the editor is focused.
+  slowPoll() {
+    if (this.pollingFast) return
+    this.polling.set(this.cm.options.pollInterval, () => {
+      this.poll()
+      if (this.cm.state.focused) this.slowPoll()
+    })
+  }
+
+  // When an event has just come in that is likely to add or change
+  // something in the input textarea, we poll faster, to ensure that
+  // the change appears on the screen quickly.
+  fastPoll() {
+    let missed = false, input = this
+    input.pollingFast = true
+    function p() {
+      let changed = input.poll()
+      if (!changed && !missed) {missed = true; input.polling.set(60, p)}
+      else {input.pollingFast = false; input.slowPoll()}
+    }
+    input.polling.set(20, p)
+  }
+
+  // Read input from the textarea, and update the document to match.
+  // When something is selected, it is present in the textarea, and
+  // selected (unless it is huge, in which case a placeholder is
+  // used). When nothing is selected, the cursor sits after previously
+  // seen text (can be empty), which is stored in prevInput (we must
+  // not reset the textarea when typing, because that breaks IME).
+  poll() {
+    let cm = this.cm, input = this.textarea, prevInput = this.prevInput
+    // Since this is called a *lot*, try to bail out as cheaply as
+    // possible when it is clear that nothing happened. hasSelection
+    // will be the case when there is a lot of text in the textarea,
+    // in which case reading its value would be expensive.
+    if (this.contextMenuPending || !cm.state.focused ||
+        (hasSelection(input) && !prevInput && !this.composing) ||
+        cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq)
+      return false
+
+    let text = input.value
+    // If nothing changed, bail.
+    if (text == prevInput && !cm.somethingSelected()) return false
+    // Work around nonsensical selection resetting in IE9/10, and
+    // inexplicable appearance of private area unicode characters on
+    // some key combos in Mac (#2689).
+    if (ie && ie_version >= 9 && this.hasSelection === text ||
+        mac && /[\uf700-\uf7ff]/.test(text)) {
+      cm.display.input.reset()
+      return false
+    }
+
+    if (cm.doc.sel == cm.display.selForContextMenu) {
+      let first = text.charCodeAt(0)
+      if (first == 0x200b && !prevInput) prevInput = "\u200b"
+      if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo") }
+    }
+    // Find the part of the input that is actually new
+    let same = 0, l = Math.min(prevInput.length, text.length)
+    while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) ++same
+
+    runInOp(cm, () => {
+      applyTextInput(cm, text.slice(same), prevInput.length - same,
+                     null, this.composing ? "*compose" : null)
+
+      // Don't leave long text in the textarea, since it makes further polling slow
+      if (text.length > 1000 || text.indexOf("\n") > -1) input.value = this.prevInput = ""
+      else this.prevInput = text
+
+      if (this.composing) {
+        this.composing.range.clear()
+        this.composing.range = cm.markText(this.composing.start, cm.getCursor("to"),
+                                           {className: "CodeMirror-composing"})
+      }
+    })
+    return true
+  }
+
+  ensurePolled() {
+    if (this.pollingFast && this.poll()) this.pollingFast = false
+  }
+
+  onKeyPress() {
+    if (ie && ie_version >= 9) this.hasSelection = null
+    this.fastPoll()
+  }
+
+  onContextMenu(e) {
+    let input = this, cm = input.cm, display = cm.display, te = input.textarea
+    let pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop
+    if (!pos || presto) return // Opera is difficult.
+
+    // Reset the current text selection only if the click is done outside of the selection
+    // and 'resetSelectionOnContextMenu' option is true.
+    let reset = cm.options.resetSelectionOnContextMenu
+    if (reset && cm.doc.sel.contains(pos) == -1)
+      operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll)
+
+    let oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText
+    input.wrapper.style.cssText = "position: absolute"
+    let wrapperBox = input.wrapper.getBoundingClientRect()
+    te.style.cssText = `position: absolute; width: 30px; height: 30px;
+      top: ${e.clientY - wrapperBox.top - 5}px; left: ${e.clientX - wrapperBox.left - 5}px;
+      z-index: 1000; background: ${ie ? "rgba(255, 255, 255, .05)" : "transparent"};
+      outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);`
+    let oldScrollY
+    if (webkit) oldScrollY = window.scrollY // Work around Chrome issue (#2712)
+    display.input.focus()
+    if (webkit) window.scrollTo(null, oldScrollY)
+    display.input.reset()
+    // Adds "Select all" to context menu in FF
+    if (!cm.somethingSelected()) te.value = input.prevInput = " "
+    input.contextMenuPending = true
+    display.selForContextMenu = cm.doc.sel
+    clearTimeout(display.detectingSelectAll)
+
+    // Select-all will be greyed out if there's nothing to select, so
+    // this adds a zero-width space so that we can later check whether
+    // it got selected.
+    function prepareSelectAllHack() {
+      if (te.selectionStart != null) {
+        let selected = cm.somethingSelected()
+        let extval = "\u200b" + (selected ? te.value : "")
+        te.value = "\u21da" // Used to catch context-menu undo
+        te.value = extval
+        input.prevInput = selected ? "" : "\u200b"
+        te.selectionStart = 1; te.selectionEnd = extval.length
+        // Re-set this, in case some other handler touched the
+        // selection in the meantime.
+        display.selForContextMenu = cm.doc.sel
+      }
+    }
+    function rehide() {
+      input.contextMenuPending = false
+      input.wrapper.style.cssText = oldWrapperCSS
+      te.style.cssText = oldCSS
+      if (ie && ie_version < 9) display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos)
+
+      // Try to detect the user choosing select-all
+      if (te.selectionStart != null) {
+        if (!ie || (ie && ie_version < 9)) prepareSelectAllHack()
+        let i = 0, poll = () => {
+          if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 &&
+              te.selectionEnd > 0 && input.prevInput == "\u200b") {
+            operation(cm, selectAll)(cm)
+          } else if (i++ < 10) {
+            display.detectingSelectAll = setTimeout(poll, 500)
+          } else {
+            display.selForContextMenu = null
+            display.input.reset()
+          }
+        }
+        display.detectingSelectAll = setTimeout(poll, 200)
+      }
+    }
+
+    if (ie && ie_version >= 9) prepareSelectAllHack()
+    if (captureRightClick) {
+      e_stop(e)
+      let mouseup = () => {
+        off(window, "mouseup", mouseup)
+        setTimeout(rehide, 20)
+      }
+      on(window, "mouseup", mouseup)
+    } else {
+      setTimeout(rehide, 50)
+    }
+  }
+
+  readOnlyChanged(val) {
+    if (!val) this.reset()
+  }
+
+  setUneditable() {}
+}
+
+TextareaInput.prototype.needsContentAttribute = false
diff --git a/public/codemirror/src/input/indent.js b/public/codemirror/src/input/indent.js
new file mode 100644
index 000000000..2c1755eb9
--- /dev/null
+++ b/public/codemirror/src/input/indent.js
@@ -0,0 +1,71 @@
+import { getStateBefore } from "../line/highlight"
+import { Pos } from "../line/pos"
+import { getLine } from "../line/utils_line"
+import { replaceRange } from "../model/changes"
+import { Range } from "../model/selection"
+import { replaceOneSelection } from "../model/selection_updates"
+import { countColumn, Pass, spaceStr } from "../util/misc"
+
+// Indent the given line. The how parameter can be "smart",
+// "add"/null, "subtract", or "prev". When aggressive is false
+// (typically set to true for forced single-line indents), empty
+// lines are not indented, and places where the mode returns Pass
+// are left alone.
+export function indentLine(cm, n, how, aggressive) {
+  let doc = cm.doc, state
+  if (how == null) how = "add"
+  if (how == "smart") {
+    // Fall back to "prev" when the mode doesn't have an indentation
+    // method.
+    if (!doc.mode.indent) how = "prev"
+    else state = getStateBefore(cm, n)
+  }
+
+  let tabSize = cm.options.tabSize
+  let line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize)
+  if (line.stateAfter) line.stateAfter = null
+  let curSpaceString = line.text.match(/^\s*/)[0], indentation
+  if (!aggressive && !/\S/.test(line.text)) {
+    indentation = 0
+    how = "not"
+  } else if (how == "smart") {
+    indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text)
+    if (indentation == Pass || indentation > 150) {
+      if (!aggressive) return
+      how = "prev"
+    }
+  }
+  if (how == "prev") {
+    if (n > doc.first) indentation = countColumn(getLine(doc, n-1).text, null, tabSize)
+    else indentation = 0
+  } else if (how == "add") {
+    indentation = curSpace + cm.options.indentUnit
+  } else if (how == "subtract") {
+    indentation = curSpace - cm.options.indentUnit
+  } else if (typeof how == "number") {
+    indentation = curSpace + how
+  }
+  indentation = Math.max(0, indentation)
+
+  let indentString = "", pos = 0
+  if (cm.options.indentWithTabs)
+    for (let i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t"}
+  if (pos < indentation) indentString += spaceStr(indentation - pos)
+
+  if (indentString != curSpaceString) {
+    replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input")
+    line.stateAfter = null
+    return true
+  } else {
+    // Ensure that, if the cursor was in the whitespace at the start
+    // of the line, it is moved to the end of that space.
+    for (let i = 0; i < doc.sel.ranges.length; i++) {
+      let range = doc.sel.ranges[i]
+      if (range.head.line == n && range.head.ch < curSpaceString.length) {
+        let pos = Pos(n, curSpaceString.length)
+        replaceOneSelection(doc, i, new Range(pos, pos))
+        break
+      }
+    }
+  }
+}
diff --git a/public/codemirror/src/input/input.js b/public/codemirror/src/input/input.js
new file mode 100644
index 000000000..57e4ea533
--- /dev/null
+++ b/public/codemirror/src/input/input.js
@@ -0,0 +1,135 @@
+import { runInOp } from "../display/operations"
+import { ensureCursorVisible } from "../display/scrolling"
+import { Pos } from "../line/pos"
+import { getLine } from "../line/utils_line"
+import { makeChange } from "../model/changes"
+import { ios, webkit } from "../util/browser"
+import { elt } from "../util/dom"
+import { lst, map } from "../util/misc"
+import { signalLater } from "../util/operation_group"
+import { splitLinesAuto } from "../util/feature_detection"
+
+import { indentLine } from "./indent"
+
+// This will be set to a {lineWise: bool, text: [string]} object, so
+// that, when pasting, we know what kind of selections the copied
+// text was made out of.
+export let lastCopied = null
+
+export function setLastCopied(newLastCopied) {
+  lastCopied = newLastCopied
+}
+
+export function applyTextInput(cm, inserted, deleted, sel, origin) {
+  let doc = cm.doc
+  cm.display.shift = false
+  if (!sel) sel = doc.sel
+
+  let paste = cm.state.pasteIncoming || origin == "paste"
+  let textLines = splitLinesAuto(inserted), multiPaste = null
+  // When pasing N lines into N selections, insert one line per selection
+  if (paste && sel.ranges.length > 1) {
+    if (lastCopied && lastCopied.text.join("\n") == inserted) {
+      if (sel.ranges.length % lastCopied.text.length == 0) {
+        multiPaste = []
+        for (let i = 0; i < lastCopied.text.length; i++)
+          multiPaste.push(doc.splitLines(lastCopied.text[i]))
+      }
+    } else if (textLines.length == sel.ranges.length) {
+      multiPaste = map(textLines, l => [l])
+    }
+  }
+
+  let updateInput
+  // Normal behavior is to insert the new text into every selection
+  for (let i = sel.ranges.length - 1; i >= 0; i--) {
+    let range = sel.ranges[i]
+    let from = range.from(), to = range.to()
+    if (range.empty()) {
+      if (deleted && deleted > 0) // Handle deletion
+        from = Pos(from.line, from.ch - deleted)
+      else if (cm.state.overwrite && !paste) // Handle overwrite
+        to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length))
+      else if (lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == inserted)
+        from = to = Pos(from.line, 0)
+    }
+    updateInput = cm.curOp.updateInput
+    let changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i % multiPaste.length] : textLines,
+                       origin: origin || (paste ? "paste" : cm.state.cutIncoming ? "cut" : "+input")}
+    makeChange(cm.doc, changeEvent)
+    signalLater(cm, "inputRead", cm, changeEvent)
+  }
+  if (inserted && !paste)
+    triggerElectric(cm, inserted)
+
+  ensureCursorVisible(cm)
+  cm.curOp.updateInput = updateInput
+  cm.curOp.typing = true
+  cm.state.pasteIncoming = cm.state.cutIncoming = false
+}
+
+export function handlePaste(e, cm) {
+  let pasted = e.clipboardData && e.clipboardData.getData("Text")
+  if (pasted) {
+    e.preventDefault()
+    if (!cm.isReadOnly() && !cm.options.disableInput)
+      runInOp(cm, () => applyTextInput(cm, pasted, 0, null, "paste"))
+    return true
+  }
+}
+
+export function triggerElectric(cm, inserted) {
+  // When an 'electric' character is inserted, immediately trigger a reindent
+  if (!cm.options.electricChars || !cm.options.smartIndent) return
+  let sel = cm.doc.sel
+
+  for (let i = sel.ranges.length - 1; i >= 0; i--) {
+    let range = sel.ranges[i]
+    if (range.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range.head.line)) continue
+    let mode = cm.getModeAt(range.head)
+    let indented = false
+    if (mode.electricChars) {
+      for (let j = 0; j < mode.electricChars.length; j++)
+        if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) {
+          indented = indentLine(cm, range.head.line, "smart")
+          break
+        }
+    } else if (mode.electricInput) {
+      if (mode.electricInput.test(getLine(cm.doc, range.head.line).text.slice(0, range.head.ch)))
+        indented = indentLine(cm, range.head.line, "smart")
+    }
+    if (indented) signalLater(cm, "electricInput", cm, range.head.line)
+  }
+}
+
+export function copyableRanges(cm) {
+  let text = [], ranges = []
+  for (let i = 0; i < cm.doc.sel.ranges.length; i++) {
+    let line = cm.doc.sel.ranges[i].head.line
+    let lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)}
+    ranges.push(lineRange)
+    text.push(cm.getRange(lineRange.anchor, lineRange.head))
+  }
+  return {text: text, ranges: ranges}
+}
+
+export function disableBrowserMagic(field, spellcheck) {
+  field.setAttribute("autocorrect", "off")
+  field.setAttribute("autocapitalize", "off")
+  field.setAttribute("spellcheck", !!spellcheck)
+}
+
+export function hiddenTextarea() {
+  let te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none")
+  let div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;")
+  // The textarea is kept positioned near the cursor to prevent the
+  // fact that it'll be scrolled into view on input from scrolling
+  // our fake cursor out of view. On webkit, when wrap=off, paste is
+  // very slow. So make the area wide instead.
+  if (webkit) te.style.width = "1000px"
+  else te.setAttribute("wrap", "off")
+  // If border: 0; -- iOS fails to open keyboard (issue #1287)
+  if (ios) te.style.border = "1px solid black"
+  disableBrowserMagic(te)
+  return div
+}
diff --git a/public/codemirror/src/input/keymap.js b/public/codemirror/src/input/keymap.js
new file mode 100644
index 000000000..3a107bb46
--- /dev/null
+++ b/public/codemirror/src/input/keymap.js
@@ -0,0 +1,140 @@
+import { flipCtrlCmd, mac, presto } from "../util/browser"
+import { map } from "../util/misc"
+
+import { keyNames } from "./keynames"
+
+export let keyMap = {}
+
+keyMap.basic = {
+  "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown",
+  "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown",
+  "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore",
+  "Tab": "defaultTab", "Shift-Tab": "indentAuto",
+  "Enter": "newlineAndIndent", "Insert": "toggleOverwrite",
+  "Esc": "singleSelection"
+}
+// Note that the save and find-related commands aren't defined by
+// default. User code or addons can define them. Unknown commands
+// are simply ignored.
+keyMap.pcDefault = {
+  "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo",
+  "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown",
+  "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd",
+  "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find",
+  "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll",
+  "Ctrl-[": "indentLess", "Ctrl-]": "indentMore",
+  "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection",
+  fallthrough: "basic"
+}
+// Very basic readline/emacs-style bindings, which are standard on Mac.
+keyMap.emacsy = {
+  "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown",
+  "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd",
+  "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore",
+  "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars",
+  "Ctrl-O": "openLine"
+}
+keyMap.macDefault = {
+  "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo",
+  "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft",
+  "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore",
+  "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find",
+  "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll",
+  "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight",
+  "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd",
+  fallthrough: ["basic", "emacsy"]
+}
+keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault
+
+// KEYMAP DISPATCH
+
+function normalizeKeyName(name) {
+  let parts = name.split(/-(?!$)/)
+  name = parts[parts.length - 1]
+  let alt, ctrl, shift, cmd
+  for (let i = 0; i < parts.length - 1; i++) {
+    let mod = parts[i]
+    if (/^(cmd|meta|m)$/i.test(mod)) cmd = true
+    else if (/^a(lt)?$/i.test(mod)) alt = true
+    else if (/^(c|ctrl|control)$/i.test(mod)) ctrl = true
+    else if (/^s(hift)?$/i.test(mod)) shift = true
+    else throw new Error("Unrecognized modifier name: " + mod)
+  }
+  if (alt) name = "Alt-" + name
+  if (ctrl) name = "Ctrl-" + name
+  if (cmd) name = "Cmd-" + name
+  if (shift) name = "Shift-" + name
+  return name
+}
+
+// This is a kludge to keep keymaps mostly working as raw objects
+// (backwards compatibility) while at the same time support features
+// like normalization and multi-stroke key bindings. It compiles a
+// new normalized keymap, and then updates the old object to reflect
+// this.
+export function normalizeKeyMap(keymap) {
+  let copy = {}
+  for (let keyname in keymap) if (keymap.hasOwnProperty(keyname)) {
+    let value = keymap[keyname]
+    if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) continue
+    if (value == "...") { delete keymap[keyname]; continue }
+
+    let keys = map(keyname.split(" "), normalizeKeyName)
+    for (let i = 0; i < keys.length; i++) {
+      let val, name
+      if (i == keys.length - 1) {
+        name = keys.join(" ")
+        val = value
+      } else {
+        name = keys.slice(0, i + 1).join(" ")
+        val = "..."
+      }
+      let prev = copy[name]
+      if (!prev) copy[name] = val
+      else if (prev != val) throw new Error("Inconsistent bindings for " + name)
+    }
+    delete keymap[keyname]
+  }
+  for (let prop in copy) keymap[prop] = copy[prop]
+  return keymap
+}
+
+export function lookupKey(key, map, handle, context) {
+  map = getKeyMap(map)
+  let found = map.call ? map.call(key, context) : map[key]
+  if (found === false) return "nothing"
+  if (found === "...") return "multi"
+  if (found != null && handle(found)) return "handled"
+
+  if (map.fallthrough) {
+    if (Object.prototype.toString.call(map.fallthrough) != "[object Array]")
+      return lookupKey(key, map.fallthrough, handle, context)
+    for (let i = 0; i < map.fallthrough.length; i++) {
+      let result = lookupKey(key, map.fallthrough[i], handle, context)
+      if (result) return result
+    }
+  }
+}
+
+// Modifier key presses don't count as 'real' key presses for the
+// purpose of keymap fallthrough.
+export function isModifierKey(value) {
+  let name = typeof value == "string" ? value : keyNames[value.keyCode]
+  return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod"
+}
+
+// Look up the name of a key as indicated by an event object.
+export function keyName(event, noShift) {
+  if (presto && event.keyCode == 34 && event["char"]) return false
+  let base = keyNames[event.keyCode], name = base
+  if (name == null || event.altGraphKey) return false
+  if (event.altKey && base != "Alt") name = "Alt-" + name
+  if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") name = "Ctrl-" + name
+  if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") name = "Cmd-" + name
+  if (!noShift && event.shiftKey && base != "Shift") name = "Shift-" + name
+  return name
+}
+
+export function getKeyMap(val) {
+  return typeof val == "string" ? keyMap[val] : val
+}
diff --git a/public/codemirror/src/input/keynames.js b/public/codemirror/src/input/keynames.js
new file mode 100644
index 000000000..66bc80010
--- /dev/null
+++ b/public/codemirror/src/input/keynames.js
@@ -0,0 +1,17 @@
+export let keyNames = {
+  3: "Enter", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt",
+  19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End",
+  36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert",
+  46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod",
+  106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 127: "Delete",
+  173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\",
+  221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete",
+  63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert"
+}
+
+// Number keys
+for (let i = 0; i < 10; i++) keyNames[i + 48] = keyNames[i + 96] = String(i)
+// Alphabetic keys
+for (let i = 65; i <= 90; i++) keyNames[i] = String.fromCharCode(i)
+// Function keys
+for (let i = 1; i <= 12; i++) keyNames[i + 111] = keyNames[i + 63235] = "F" + i
diff --git a/public/codemirror/src/input/movement.js b/public/codemirror/src/input/movement.js
new file mode 100644
index 000000000..5ce695e2b
--- /dev/null
+++ b/public/codemirror/src/input/movement.js
@@ -0,0 +1,110 @@
+import { Pos } from "../line/pos"
+import { prepareMeasureForLine, measureCharPrepared, wrappedLineExtentChar } from "../measurement/position_measurement"
+import { getBidiPartAt, getOrder } from "../util/bidi"
+import { findFirst, lst, skipExtendingChars } from "../util/misc"
+
+function moveCharLogically(line, ch, dir) {
+  let target = skipExtendingChars(line.text, ch + dir, dir)
+  return target < 0 || target > line.text.length ? null : target
+}
+
+export function moveLogically(line, start, dir) {
+  let ch = moveCharLogically(line, start.ch, dir)
+  return ch == null ? null : new Pos(start.line, ch, dir < 0 ? "after" : "before")
+}
+
+export function endOfLine(visually, cm, lineObj, lineNo, dir) {
+  if (visually) {
+    let order = getOrder(lineObj, cm.doc.direction)
+    if (order) {
+      let part = dir < 0 ? lst(order) : order[0]
+      let moveInStorageOrder = (dir < 0) == (part.level == 1)
+      let sticky = moveInStorageOrder ? "after" : "before"
+      let ch
+      // With a wrapped rtl chunk (possibly spanning multiple bidi parts),
+      // it could be that the last bidi part is not on the last visual line,
+      // since visual lines contain content order-consecutive chunks.
+      // Thus, in rtl, we are looking for the first (content-order) character
+      // in the rtl chunk that is on the last line (that is, the same line
+      // as the last (content-order) character).
+      if (part.level > 0) {
+        let prep = prepareMeasureForLine(cm, lineObj)
+        ch = dir < 0 ? lineObj.text.length - 1 : 0
+        let targetTop = measureCharPrepared(cm, prep, ch).top
+        ch = findFirst(ch => measureCharPrepared(cm, prep, ch).top == targetTop, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch)
+        if (sticky == "before") ch = moveCharLogically(lineObj, ch, 1, true)
+      } else ch = dir < 0 ? part.to : part.from
+      return new Pos(lineNo, ch, sticky)
+    }
+  }
+  return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? "before" : "after")
+}
+
+export function moveVisually(cm, line, start, dir) {
+  let bidi = getOrder(line, cm.doc.direction)
+  if (!bidi) return moveLogically(line, start, dir)
+  if (start.ch >= line.text.length) {
+    start.ch = line.text.length
+    start.sticky = "before"
+  } else if (start.ch <= 0) {
+    start.ch = 0
+    start.sticky = "after"
+  }
+  let partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos]
+  if (cm.doc.direction == "ltr" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) {
+    // Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines,
+    // nothing interesting happens.
+    return moveLogically(line, start, dir)
+  }
+
+  let mv = (pos, dir) => moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir)
+  let prep
+  let getWrappedLineExtent = ch => {
+    if (!cm.options.lineWrapping) return {begin: 0, end: line.text.length}
+    prep = prep || prepareMeasureForLine(cm, line)
+    return wrappedLineExtentChar(cm, line, prep, ch)
+  }
+  let wrappedLineExtent = getWrappedLineExtent(start.sticky == "before" ? mv(start, -1) : start.ch)
+
+  if (cm.doc.direction == "rtl" || part.level == 1) {
+    let moveInStorageOrder = (part.level == 1) == (dir < 0)
+    let ch = mv(start, moveInStorageOrder ? 1 : -1)
+    if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) {
+      // Case 2: We move within an rtl part or in an rtl editor on the same visual line
+      let sticky = moveInStorageOrder ? "before" : "after"
+      return new Pos(start.line, ch, sticky)
+    }
+  }
+
+  // Case 3: Could not move within this bidi part in this visual line, so leave
+  // the current bidi part
+
+  let searchInVisualLine = (partPos, dir, wrappedLineExtent) => {
+    let getRes = (ch, moveInStorageOrder) => moveInStorageOrder
+      ? new Pos(start.line, mv(ch, 1), "before")
+      : new Pos(start.line, ch, "after")
+
+    for (; partPos >= 0 && partPos < bidi.length; partPos += dir) {
+      let part = bidi[partPos]
+      let moveInStorageOrder = (dir > 0) == (part.level != 1)
+      let ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1)
+      if (part.from <= ch && ch < part.to) return getRes(ch, moveInStorageOrder)
+      ch = moveInStorageOrder ? part.from : mv(part.to, -1)
+      if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) return getRes(ch, moveInStorageOrder)
+    }
+  }
+
+  // Case 3a: Look for other bidi parts on the same visual line
+  let res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent)
+  if (res) return res
+
+  // Case 3b: Look for other bidi parts on the next visual line
+  let nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1)
+  if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) {
+    res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh))
+    if (res) return res
+  }
+
+  // Case 4: Nowhere to move
+  return null
+}
diff --git a/public/codemirror/src/line/highlight.js b/public/codemirror/src/line/highlight.js
new file mode 100644
index 000000000..dcf020adf
--- /dev/null
+++ b/public/codemirror/src/line/highlight.js
@@ -0,0 +1,203 @@
+import { countColumn } from "../util/misc"
+import { copyState, innerMode, startState } from "../modes"
+import StringStream from "../util/StringStream"
+
+import { getLine, lineNo } from "./utils_line"
+import { clipPos } from "./pos"
+
+// Compute a style array (an array starting with a mode generation
+// -- for invalidation -- followed by pairs of end positions and
+// style strings), which is used to highlight the tokens on the
+// line.
+export function highlightLine(cm, line, state, forceToEnd) {
+  // A styles array always starts with a number identifying the
+  // mode/overlays that it is based on (for easy invalidation).
+  let st = [cm.state.modeGen], lineClasses = {}
+  // Compute the base array of styles
+  runMode(cm, line.text, cm.doc.mode, state, (end, style) => st.push(end, style),
+    lineClasses, forceToEnd)
+
+  // Run overlays, adjust style array.
+  for (let o = 0; o < cm.state.overlays.length; ++o) {
+    let overlay = cm.state.overlays[o], i = 1, at = 0
+    runMode(cm, line.text, overlay.mode, true, (end, style) => {
+      let start = i
+      // Ensure there's a token end at the current position, and that i points at it
+      while (at < end) {
+        let i_end = st[i]
+        if (i_end > end)
+          st.splice(i, 1, end, st[i+1], i_end)
+        i += 2
+        at = Math.min(end, i_end)
+      }
+      if (!style) return
+      if (overlay.opaque) {
+        st.splice(start, i - start, end, "overlay " + style)
+        i = start + 2
+      } else {
+        for (; start < i; start += 2) {
+          let cur = st[start+1]
+          st[start+1] = (cur ? cur + " " : "") + "overlay " + style
+        }
+      }
+    }, lineClasses)
+  }
+
+  return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null}
+}
+
+export function getLineStyles(cm, line, updateFrontier) {
+  if (!line.styles || line.styles[0] != cm.state.modeGen) {
+    let state = getStateBefore(cm, lineNo(line))
+    let result = highlightLine(cm, line, line.text.length > cm.options.maxHighlightLength ? copyState(cm.doc.mode, state) : state)
+    line.stateAfter = state
+    line.styles = result.styles
+    if (result.classes) line.styleClasses = result.classes
+    else if (line.styleClasses) line.styleClasses = null
+    if (updateFrontier === cm.doc.frontier) cm.doc.frontier++
+  }
+  return line.styles
+}
+
+export function getStateBefore(cm, n, precise) {
+  let doc = cm.doc, display = cm.display
+  if (!doc.mode.startState) return true
+  let pos = findStartLine(cm, n, precise), state = pos > doc.first && getLine(doc, pos-1).stateAfter
+  if (!state) state = startState(doc.mode)
+  else state = copyState(doc.mode, state)
+  doc.iter(pos, n, line => {
+    processLine(cm, line.text, state)
+    let save = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo
+    line.stateAfter = save ? copyState(doc.mode, state) : null
+    ++pos
+  })
+  if (precise) doc.frontier = pos
+  return state
+}
+
+// Lightweight form of highlight -- proceed over this line and
+// update state, but don't save a style array. Used for lines that
+// aren't currently visible.
+export function processLine(cm, text, state, startAt) {
+  let mode = cm.doc.mode
+  let stream = new StringStream(text, cm.options.tabSize)
+  stream.start = stream.pos = startAt || 0
+  if (text == "") callBlankLine(mode, state)
+  while (!stream.eol()) {
+    readToken(mode, stream, state)
+    stream.start = stream.pos
+  }
+}
+
+function callBlankLine(mode, state) {
+  if (mode.blankLine) return mode.blankLine(state)
+  if (!mode.innerMode) return
+  let inner = innerMode(mode, state)
+  if (inner.mode.blankLine) return inner.mode.blankLine(inner.state)
+}
+
+export function readToken(mode, stream, state, inner) {
+  for (let i = 0; i < 10; i++) {
+    if (inner) inner[0] = innerMode(mode, state).mode
+    let style = mode.token(stream, state)
+    if (stream.pos > stream.start) return style
+  }
+  throw new Error("Mode " + mode.name + " failed to advance stream.")
+}
+
+// Utility for getTokenAt and getLineTokens
+export function takeToken(cm, pos, precise, asArray) {
+  let getObj = copy => ({
+    start: stream.start, end: stream.pos,
+    string: stream.current(),
+    type: style || null,
+    state: copy ? copyState(doc.mode, state) : state
+  })
+
+  let doc = cm.doc, mode = doc.mode, style
+  pos = clipPos(doc, pos)
+  let line = getLine(doc, pos.line), state = getStateBefore(cm, pos.line, precise)
+  let stream = new StringStream(line.text, cm.options.tabSize), tokens
+  if (asArray) tokens = []
+  while ((asArray || stream.pos < pos.ch) && !stream.eol()) {
+    stream.start = stream.pos
+    style = readToken(mode, stream, state)
+    if (asArray) tokens.push(getObj(true))
+  }
+  return asArray ? tokens : getObj()
+}
+
+function extractLineClasses(type, output) {
+  if (type) for (;;) {
+    let lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/)
+    if (!lineClass) break
+    type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length)
+    let prop = lineClass[1] ? "bgClass" : "textClass"
+    if (output[prop] == null)
+      output[prop] = lineClass[2]
+    else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop]))
+      output[prop] += " " + lineClass[2]
+  }
+  return type
+}
+
+// Run the given mode's parser over a line, calling f for each token.
+function runMode(cm, text, mode, state, f, lineClasses, forceToEnd) {
+  let flattenSpans = mode.flattenSpans
+  if (flattenSpans == null) flattenSpans = cm.options.flattenSpans
+  let curStart = 0, curStyle = null
+  let stream = new StringStream(text, cm.options.tabSize), style
+  let inner = cm.options.addModeClass && [null]
+  if (text == "") extractLineClasses(callBlankLine(mode, state), lineClasses)
+  while (!stream.eol()) {
+    if (stream.pos > cm.options.maxHighlightLength) {
+      flattenSpans = false
+      if (forceToEnd) processLine(cm, text, state, stream.pos)
+      stream.pos = text.length
+      style = null
+    } else {
+      style = extractLineClasses(readToken(mode, stream, state, inner), lineClasses)
+    }
+    if (inner) {
+      let mName = inner[0].name
+      if (mName) style = "m-" + (style ? mName + " " + style : mName)
+    }
+    if (!flattenSpans || curStyle != style) {
+      while (curStart < stream.start) {
+        curStart = Math.min(stream.start, curStart + 5000)
+        f(curStart, curStyle)
+      }
+      curStyle = style
+    }
+    stream.start = stream.pos
+  }
+  while (curStart < stream.pos) {
+    // Webkit seems to refuse to render text nodes longer than 57444
+    // characters, and returns inaccurate measurements in nodes
+    // starting around 5000 chars.
+    let pos = Math.min(stream.pos, curStart + 5000)
+    f(pos, curStyle)
+    curStart = pos
+  }
+}
+
+// Finds the line to start with when starting a parse. Tries to
+// find a line with a stateAfter, so that it can start with a
+// valid state. If that fails, it returns the line with the
+// smallest indentation, which tends to need the least context to
+// parse correctly.
+function findStartLine(cm, n, precise) {
+  let minindent, minline, doc = cm.doc
+  let lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100)
+  for (let search = n; search > lim; --search) {
+    if (search <= doc.first) return doc.first
+    let line = getLine(doc, search - 1)
+    if (line.stateAfter && (!precise || search <= doc.frontier)) return search
+    let indented = countColumn(line.text, null, cm.options.tabSize)
+    if (minline == null || minindent > indented) {
+      minline = search - 1
+      minindent = indented
+    }
+  }
+  return minline
+}
diff --git a/public/codemirror/src/line/line_data.js b/public/codemirror/src/line/line_data.js
new file mode 100644
index 000000000..e444184bb
--- /dev/null
+++ b/public/codemirror/src/line/line_data.js
@@ -0,0 +1,337 @@
+import { getOrder } from "../util/bidi"
+import { ie, ie_version, webkit } from "../util/browser"
+import { elt, eltP, joinClasses } from "../util/dom"
+import { eventMixin, signal } from "../util/event"
+import { hasBadBidiRects, zeroWidthElement } from "../util/feature_detection"
+import { lst, spaceStr } from "../util/misc"
+
+import { getLineStyles } from "./highlight"
+import { attachMarkedSpans, compareCollapsedMarkers, detachMarkedSpans, lineIsHidden, visualLineContinued } from "./spans"
+import { getLine, lineNo, updateLineHeight } from "./utils_line"
+
+// LINE DATA STRUCTURE
+
+// Line objects. These hold state related to a line, including
+// highlighting info (the styles array).
+export class Line {
+  constructor(text, markedSpans, estimateHeight) {
+    this.text = text
+    attachMarkedSpans(this, markedSpans)
+    this.height = estimateHeight ? estimateHeight(this) : 1
+  }
+
+  lineNo() { return lineNo(this) }
+}
+eventMixin(Line)
+
+// Change the content (text, markers) of a line. Automatically
+// invalidates cached information and tries to re-estimate the
+// line's height.
+export function updateLine(line, text, markedSpans, estimateHeight) {
+  line.text = text
+  if (line.stateAfter) line.stateAfter = null
+  if (line.styles) line.styles = null
+  if (line.order != null) line.order = null
+  detachMarkedSpans(line)
+  attachMarkedSpans(line, markedSpans)
+  let estHeight = estimateHeight ? estimateHeight(line) : 1
+  if (estHeight != line.height) updateLineHeight(line, estHeight)
+}
+
+// Detach a line from the document tree and its markers.
+export function cleanUpLine(line) {
+  line.parent = null
+  detachMarkedSpans(line)
+}
+
+// Convert a style as returned by a mode (either null, or a string
+// containing one or more styles) to a CSS style. This is cached,
+// and also looks for line-wide styles.
+let styleToClassCache = {}, styleToClassCacheWithMode = {}
+function interpretTokenStyle(style, options) {
+  if (!style || /^\s*$/.test(style)) return null
+  let cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache
+  return cache[style] ||
+    (cache[style] = style.replace(/\S+/g, "cm-$&"))
+}
+
+// Render the DOM representation of the text of a line. Also builds
+// up a 'line map', which points at the DOM nodes that represent
+// specific stretches of text, and is used by the measuring code.
+// The returned object contains the DOM node, this map, and
+// information about line-wide styles that were set by the mode.
+export function buildLineContent(cm, lineView) {
+  // The padding-right forces the element to have a 'border', which
+  // is needed on Webkit to be able to get line-level bounding
+  // rectangles for it (in measureChar).
+  let content = eltP("span", null, null, webkit ? "padding-right: .1px" : null)
+  let builder = {pre: eltP("pre", [content], "CodeMirror-line"), content: content,
+                 col: 0, pos: 0, cm: cm,
+                 trailingSpace: false,
+                 splitSpaces: (ie || webkit) && cm.getOption("lineWrapping")}
+  lineView.measure = {}
+
+  // Iterate over the logical lines that make up this visual line.
+  for (let i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) {
+    let line = i ? lineView.rest[i - 1] : lineView.line, order
+    builder.pos = 0
+    builder.addToken = buildToken
+    // Optionally wire in some hacks into the token-rendering
+    // algorithm, to deal with browser quirks.
+    if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction)))
+      builder.addToken = buildTokenBadBidi(builder.addToken, order)
+    builder.map = []
+    let allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line)
+    insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate))
+    if (line.styleClasses) {
+      if (line.styleClasses.bgClass)
+        builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || "")
+      if (line.styleClasses.textClass)
+        builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || "")
+    }
+
+    // Ensure at least a single node is present, for measuring.
+    if (builder.map.length == 0)
+      builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure)))
+
+    // Store the map and a cache object for the current logical line
+    if (i == 0) {
+      lineView.measure.map = builder.map
+      lineView.measure.cache = {}
+    } else {
+      ;(lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map)
+      ;(lineView.measure.caches || (lineView.measure.caches = [])).push({})
+    }
+  }
+
+  // See issue #2901
+  if (webkit) {
+    let last = builder.content.lastChild
+    if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab")))
+      builder.content.className = "cm-tab-wrap-hack"
+  }
+
+  signal(cm, "renderLine", cm, lineView.line, builder.pre)
+  if (builder.pre.className)
+    builder.textClass = joinClasses(builder.pre.className, builder.textClass || "")
+
+  return builder
+}
+
+export function defaultSpecialCharPlaceholder(ch) {
+  let token = elt("span", "\u2022", "cm-invalidchar")
+  token.title = "\\u" + ch.charCodeAt(0).toString(16)
+  token.setAttribute("aria-label", token.title)
+  return token
+}
+
+// Build up the DOM representation for a single token, and add it to
+// the line map. Takes care to render special characters separately.
+function buildToken(builder, text, style, startStyle, endStyle, title, css) {
+  if (!text) return
+  let displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text
+  let special = builder.cm.state.specialChars, mustWrap = false
+  let content
+  if (!special.test(text)) {
+    builder.col += text.length
+    content = document.createTextNode(displayText)
+    builder.map.push(builder.pos, builder.pos + text.length, content)
+    if (ie && ie_version < 9) mustWrap = true
+    builder.pos += text.length
+  } else {
+    content = document.createDocumentFragment()
+    let pos = 0
+    while (true) {
+      special.lastIndex = pos
+      let m = special.exec(text)
+      let skipped = m ? m.index - pos : text.length - pos
+      if (skipped) {
+        let txt = document.createTextNode(displayText.slice(pos, pos + skipped))
+        if (ie && ie_version < 9) content.appendChild(elt("span", [txt]))
+        else content.appendChild(txt)
+        builder.map.push(builder.pos, builder.pos + skipped, txt)
+        builder.col += skipped
+        builder.pos += skipped
+      }
+      if (!m) break
+      pos += skipped + 1
+      let txt
+      if (m[0] == "\t") {
+        let tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize
+        txt = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab"))
+        txt.setAttribute("role", "presentation")
+        txt.setAttribute("cm-text", "\t")
+        builder.col += tabWidth
+      } else if (m[0] == "\r" || m[0] == "\n") {
+        txt = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar"))
+        txt.setAttribute("cm-text", m[0])
+        builder.col += 1
+      } else {
+        txt = builder.cm.options.specialCharPlaceholder(m[0])
+        txt.setAttribute("cm-text", m[0])
+        if (ie && ie_version < 9) content.appendChild(elt("span", [txt]))
+        else content.appendChild(txt)
+        builder.col += 1
+      }
+      builder.map.push(builder.pos, builder.pos + 1, txt)
+      builder.pos++
+    }
+  }
+  builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32
+  if (style || startStyle || endStyle || mustWrap || css) {
+    let fullStyle = style || ""
+    if (startStyle) fullStyle += startStyle
+    if (endStyle) fullStyle += endStyle
+    let token = elt("span", [content], fullStyle, css)
+    if (title) token.title = title
+    return builder.content.appendChild(token)
+  }
+  builder.content.appendChild(content)
+}
+
+function splitSpaces(text, trailingBefore) {
+  if (text.length > 1 && !/  /.test(text)) return text
+  let spaceBefore = trailingBefore, result = ""
+  for (let i = 0; i < text.length; i++) {
+    let ch = text.charAt(i)
+    if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32))
+      ch = "\u00a0"
+    result += ch
+    spaceBefore = ch == " "
+  }
+  return result
+}
+
+// Work around nonsense dimensions being reported for stretches of
+// right-to-left text.
+function buildTokenBadBidi(inner, order) {
+  return (builder, text, style, startStyle, endStyle, title, css) => {
+    style = style ? style + " cm-force-border" : "cm-force-border"
+    let start = builder.pos, end = start + text.length
+    for (;;) {
+      // Find the part that overlaps with the start of this text
+      let part
+      for (let i = 0; i < order.length; i++) {
+        part = order[i]
+        if (part.to > start && part.from <= start) break
+      }
+      if (part.to >= end) return inner(builder, text, style, startStyle, endStyle, title, css)
+      inner(builder, text.slice(0, part.to - start), style, startStyle, null, title, css)
+      startStyle = null
+      text = text.slice(part.to - start)
+      start = part.to
+    }
+  }
+}
+
+function buildCollapsedSpan(builder, size, marker, ignoreWidget) {
+  let widget = !ignoreWidget && marker.widgetNode
+  if (widget) builder.map.push(builder.pos, builder.pos + size, widget)
+  if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) {
+    if (!widget)
+      widget = builder.content.appendChild(document.createElement("span"))
+    widget.setAttribute("cm-marker", marker.id)
+  }
+  if (widget) {
+    builder.cm.display.input.setUneditable(widget)
+    builder.content.appendChild(widget)
+  }
+  builder.pos += size
+  builder.trailingSpace = false
+}
+
+// Outputs a number of spans to make up a line, taking highlighting
+// and marked text into account.
+function insertLineContent(line, builder, styles) {
+  let spans = line.markedSpans, allText = line.text, at = 0
+  if (!spans) {
+    for (let i = 1; i < styles.length; i+=2)
+      builder.addToken(builder, allText.slice(at, at = styles[i]), interpretTokenStyle(styles[i+1], builder.cm.options))
+    return
+  }
+
+  let len = allText.length, pos = 0, i = 1, text = "", style, css
+  let nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed
+  for (;;) {
+    if (nextChange == pos) { // Update current marker set
+      spanStyle = spanEndStyle = spanStartStyle = title = css = ""
+      collapsed = null; nextChange = Infinity
+      let foundBookmarks = [], endStyles
+      for (let j = 0; j < spans.length; ++j) {
+        let sp = spans[j], m = sp.marker
+        if (m.type == "bookmark" && sp.from == pos && m.widgetNode) {
+          foundBookmarks.push(m)
+        } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) {
+          if (sp.to != null && sp.to != pos && nextChange > sp.to) {
+            nextChange = sp.to
+            spanEndStyle = ""
+          }
+          if (m.className) spanStyle += " " + m.className
+          if (m.css) css = (css ? css + ";" : "") + m.css
+          if (m.startStyle && sp.from == pos) spanStartStyle += " " + m.startStyle
+          if (m.endStyle && sp.to == nextChange) (endStyles || (endStyles = [])).push(m.endStyle, sp.to)
+          if (m.title && !title) title = m.title
+          if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0))
+            collapsed = sp
+        } else if (sp.from > pos && nextChange > sp.from) {
+          nextChange = sp.from
+        }
+      }
+      if (endStyles) for (let j = 0; j < endStyles.length; j += 2)
+        if (endStyles[j + 1] == nextChange) spanEndStyle += " " + endStyles[j]
+
+      if (!collapsed || collapsed.from == pos) for (let j = 0; j < foundBookmarks.length; ++j)
+        buildCollapsedSpan(builder, 0, foundBookmarks[j])
+      if (collapsed && (collapsed.from || 0) == pos) {
+        buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos,
+                           collapsed.marker, collapsed.from == null)
+        if (collapsed.to == null) return
+        if (collapsed.to == pos) collapsed = false
+      }
+    }
+    if (pos >= len) break
+
+    let upto = Math.min(len, nextChange)
+    while (true) {
+      if (text) {
+        let end = pos + text.length
+        if (!collapsed) {
+          let tokenText = end > upto ? text.slice(0, upto - pos) : text
+          builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle,
+                           spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title, css)
+        }
+        if (end >= upto) {text = text.slice(upto - pos); pos = upto; break}
+        pos = end
+        spanStartStyle = ""
+      }
+      text = allText.slice(at, at = styles[i++])
+      style = interpretTokenStyle(styles[i++], builder.cm.options)
+    }
+  }
+}
+
+
+// These objects are used to represent the visible (currently drawn)
+// part of the document. A LineView may correspond to multiple
+// logical lines, if those are connected by collapsed ranges.
+export function LineView(doc, line, lineN) {
+  // The starting line
+  this.line = line
+  // Continuing lines, if any
+  this.rest = visualLineContinued(line)
+  // Number of logical lines in this visual line
+  this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1
+  this.node = this.text = null
+  this.hidden = lineIsHidden(doc, line)
+}
+
+// Create a range of LineView objects for the given lines.
+export function buildViewArray(cm, from, to) {
+  let array = [], nextPos
+  for (let pos = from; pos < to; pos = nextPos) {
+    let view = new LineView(cm.doc, getLine(cm.doc, pos), pos)
+    nextPos = pos + view.size
+    array.push(view)
+  }
+  return array
+}
diff --git a/public/codemirror/src/line/pos.js b/public/codemirror/src/line/pos.js
new file mode 100644
index 000000000..4f5e4c559
--- /dev/null
+++ b/public/codemirror/src/line/pos.js
@@ -0,0 +1,40 @@
+import { getLine } from "./utils_line"
+
+// A Pos instance represents a position within the text.
+export function Pos(line, ch, sticky = null) {
+  if (!(this instanceof Pos)) return new Pos(line, ch, sticky)
+  this.line = line
+  this.ch = ch
+  this.sticky = sticky
+}
+
+// Compare two positions, return 0 if they are the same, a negative
+// number when a is less, and a positive number otherwise.
+export function cmp(a, b) { return a.line - b.line || a.ch - b.ch }
+
+export function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 }
+
+export function copyPos(x) {return Pos(x.line, x.ch)}
+export function maxPos(a, b) { return cmp(a, b) < 0 ? b : a }
+export function minPos(a, b) { return cmp(a, b) < 0 ? a : b }
+
+// Most of the external API clips given positions to make sure they
+// actually exist within the document.
+export function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))}
+export function clipPos(doc, pos) {
+  if (pos.line < doc.first) return Pos(doc.first, 0)
+  let last = doc.first + doc.size - 1
+  if (pos.line > last) return Pos(last, getLine(doc, last).text.length)
+  return clipToLen(pos, getLine(doc, pos.line).text.length)
+}
+function clipToLen(pos, linelen) {
+  let ch = pos.ch
+  if (ch == null || ch > linelen) return Pos(pos.line, linelen)
+  else if (ch < 0) return Pos(pos.line, 0)
+  else return pos
+}
+export function clipPosArray(doc, array) {
+  let out = []
+  for (let i = 0; i < array.length; i++) out[i] = clipPos(doc, array[i])
+  return out
+}
diff --git a/public/codemirror/src/line/saw_special_spans.js b/public/codemirror/src/line/saw_special_spans.js
new file mode 100644
index 000000000..d315e7ba9
--- /dev/null
+++ b/public/codemirror/src/line/saw_special_spans.js
@@ -0,0 +1,10 @@
+// Optimize some code when these features are not used.
+export let sawReadOnlySpans = false, sawCollapsedSpans = false
+
+export function seeReadOnlySpans() {
+  sawReadOnlySpans = true
+}
+
+export function seeCollapsedSpans() {
+  sawCollapsedSpans = true
+}
diff --git a/public/codemirror/src/line/spans.js b/public/codemirror/src/line/spans.js
new file mode 100644
index 000000000..6c413d2fc
--- /dev/null
+++ b/public/codemirror/src/line/spans.js
@@ -0,0 +1,372 @@
+import { indexOf, lst } from "../util/misc"
+
+import { cmp } from "./pos"
+import { sawCollapsedSpans } from "./saw_special_spans"
+import { getLine, isLine, lineNo } from "./utils_line"
+
+// TEXTMARKER SPANS
+
+export function MarkedSpan(marker, from, to) {
+  this.marker = marker
+  this.from = from; this.to = to
+}
+
+// Search an array of spans for a span matching the given marker.
+export function getMarkedSpanFor(spans, marker) {
+  if (spans) for (let i = 0; i < spans.length; ++i) {
+    let span = spans[i]
+    if (span.marker == marker) return span
+  }
+}
+// Remove a span from an array, returning undefined if no spans are
+// left (we don't store arrays for lines without spans).
+export function removeMarkedSpan(spans, span) {
+  let r
+  for (let i = 0; i < spans.length; ++i)
+    if (spans[i] != span) (r || (r = [])).push(spans[i])
+  return r
+}
+// Add a span to a line.
+export function addMarkedSpan(line, span) {
+  line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span]
+  span.marker.attachLine(line)
+}
+
+// Used for the algorithm that adjusts markers for a change in the
+// document. These functions cut an array of spans at a given
+// character position, returning an array of remaining chunks (or
+// undefined if nothing remains).
+function markedSpansBefore(old, startCh, isInsert) {
+  let nw
+  if (old) for (let i = 0; i < old.length; ++i) {
+    let span = old[i], marker = span.marker
+    let startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh)
+    if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) {
+      let endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh)
+      ;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to))
+    }
+  }
+  return nw
+}
+function markedSpansAfter(old, endCh, isInsert) {
+  let nw
+  if (old) for (let i = 0; i < old.length; ++i) {
+    let span = old[i], marker = span.marker
+    let endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh)
+    if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) {
+      let startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh)
+      ;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh,
+                                            span.to == null ? null : span.to - endCh))
+    }
+  }
+  return nw
+}
+
+// Given a change object, compute the new set of marker spans that
+// cover the line in which the change took place. Removes spans
+// entirely within the change, reconnects spans belonging to the
+// same marker that appear on both sides of the change, and cuts off
+// spans partially within the change. Returns an array of span
+// arrays with one element for each line in (after) the change.
+export function stretchSpansOverChange(doc, change) {
+  if (change.full) return null
+  let oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans
+  let oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans
+  if (!oldFirst && !oldLast) return null
+
+  let startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0
+  // Get the spans that 'stick out' on both sides
+  let first = markedSpansBefore(oldFirst, startCh, isInsert)
+  let last = markedSpansAfter(oldLast, endCh, isInsert)
+
+  // Next, merge those two ends
+  let sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0)
+  if (first) {
+    // Fix up .to properties of first
+    for (let i = 0; i < first.length; ++i) {
+      let span = first[i]
+      if (span.to == null) {
+        let found = getMarkedSpanFor(last, span.marker)
+        if (!found) span.to = startCh
+        else if (sameLine) span.to = found.to == null ? null : found.to + offset
+      }
+    }
+  }
+  if (last) {
+    // Fix up .from in last (or move them into first in case of sameLine)
+    for (let i = 0; i < last.length; ++i) {
+      let span = last[i]
+      if (span.to != null) span.to += offset
+      if (span.from == null) {
+        let found = getMarkedSpanFor(first, span.marker)
+        if (!found) {
+          span.from = offset
+          if (sameLine) (first || (first = [])).push(span)
+        }
+      } else {
+        span.from += offset
+        if (sameLine) (first || (first = [])).push(span)
+      }
+    }
+  }
+  // Make sure we didn't create any zero-length spans
+  if (first) first = clearEmptySpans(first)
+  if (last && last != first) last = clearEmptySpans(last)
+
+  let newMarkers = [first]
+  if (!sameLine) {
+    // Fill gap with whole-line-spans
+    let gap = change.text.length - 2, gapMarkers
+    if (gap > 0 && first)
+      for (let i = 0; i < first.length; ++i)
+        if (first[i].to == null)
+          (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i].marker, null, null))
+    for (let i = 0; i < gap; ++i)
+      newMarkers.push(gapMarkers)
+    newMarkers.push(last)
+  }
+  return newMarkers
+}
+
+// Remove spans that are empty and don't have a clearWhenEmpty
+// option of false.
+function clearEmptySpans(spans) {
+  for (let i = 0; i < spans.length; ++i) {
+    let span = spans[i]
+    if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false)
+      spans.splice(i--, 1)
+  }
+  if (!spans.length) return null
+  return spans
+}
+
+// Used to 'clip' out readOnly ranges when making a change.
+export function removeReadOnlyRanges(doc, from, to) {
+  let markers = null
+  doc.iter(from.line, to.line + 1, line => {
+    if (line.markedSpans) for (let i = 0; i < line.markedSpans.length; ++i) {
+      let mark = line.markedSpans[i].marker
+      if (mark.readOnly && (!markers || indexOf(markers, mark) == -1))
+        (markers || (markers = [])).push(mark)
+    }
+  })
+  if (!markers) return null
+  let parts = [{from: from, to: to}]
+  for (let i = 0; i < markers.length; ++i) {
+    let mk = markers[i], m = mk.find(0)
+    for (let j = 0; j < parts.length; ++j) {
+      let p = parts[j]
+      if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) continue
+      let newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to)
+      if (dfrom < 0 || !mk.inclusiveLeft && !dfrom)
+        newParts.push({from: p.from, to: m.from})
+      if (dto > 0 || !mk.inclusiveRight && !dto)
+        newParts.push({from: m.to, to: p.to})
+      parts.splice.apply(parts, newParts)
+      j += newParts.length - 3
+    }
+  }
+  return parts
+}
+
+// Connect or disconnect spans from a line.
+export function detachMarkedSpans(line) {
+  let spans = line.markedSpans
+  if (!spans) return
+  for (let i = 0; i < spans.length; ++i)
+    spans[i].marker.detachLine(line)
+  line.markedSpans = null
+}
+export function attachMarkedSpans(line, spans) {
+  if (!spans) return
+  for (let i = 0; i < spans.length; ++i)
+    spans[i].marker.attachLine(line)
+  line.markedSpans = spans
+}
+
+// Helpers used when computing which overlapping collapsed span
+// counts as the larger one.
+function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 }
+function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 }
+
+// Returns a number indicating which of two overlapping collapsed
+// spans is larger (and thus includes the other). Falls back to
+// comparing ids when the spans cover exactly the same range.
+export function compareCollapsedMarkers(a, b) {
+  let lenDiff = a.lines.length - b.lines.length
+  if (lenDiff != 0) return lenDiff
+  let aPos = a.find(), bPos = b.find()
+  let fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b)
+  if (fromCmp) return -fromCmp
+  let toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b)
+  if (toCmp) return toCmp
+  return b.id - a.id
+}
+
+// Find out whether a line ends or starts in a collapsed span. If
+// so, return the marker for that span.
+function collapsedSpanAtSide(line, start) {
+  let sps = sawCollapsedSpans && line.markedSpans, found
+  if (sps) for (let sp, i = 0; i < sps.length; ++i) {
+    sp = sps[i]
+    if (sp.marker.collapsed && (start ? sp.from : sp.to) == null &&
+        (!found || compareCollapsedMarkers(found, sp.marker) < 0))
+      found = sp.marker
+  }
+  return found
+}
+export function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) }
+export function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) }
+
+// Test whether there exists a collapsed span that partially
+// overlaps (covers the start or end, but not both) of a new span.
+// Such overlap is not allowed.
+export function conflictingCollapsedRange(doc, lineNo, from, to, marker) {
+  let line = getLine(doc, lineNo)
+  let sps = sawCollapsedSpans && line.markedSpans
+  if (sps) for (let i = 0; i < sps.length; ++i) {
+    let sp = sps[i]
+    if (!sp.marker.collapsed) continue
+    let found = sp.marker.find(0)
+    let fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker)
+    let toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker)
+    if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) continue
+    if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) ||
+        fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0))
+      return true
+  }
+}
+
+// A visual line is a line as drawn on the screen. Folding, for
+// example, can cause multiple logical lines to appear on the same
+// visual line. This finds the start of the visual line that the
+// given line is part of (usually that is the line itself).
+export function visualLine(line) {
+  let merged
+  while (merged = collapsedSpanAtStart(line))
+    line = merged.find(-1, true).line
+  return line
+}
+
+export function visualLineEnd(line) {
+  let merged
+  while (merged = collapsedSpanAtEnd(line))
+    line = merged.find(1, true).line
+  return line
+}
+
+// Returns an array of logical lines that continue the visual line
+// started by the argument, or undefined if there are no such lines.
+export function visualLineContinued(line) {
+  let merged, lines
+  while (merged = collapsedSpanAtEnd(line)) {
+    line = merged.find(1, true).line
+    ;(lines || (lines = [])).push(line)
+  }
+  return lines
+}
+
+// Get the line number of the start of the visual line that the
+// given line number is part of.
+export function visualLineNo(doc, lineN) {
+  let line = getLine(doc, lineN), vis = visualLine(line)
+  if (line == vis) return lineN
+  return lineNo(vis)
+}
+
+// Get the line number of the start of the next visual line after
+// the given line.
+export function visualLineEndNo(doc, lineN) {
+  if (lineN > doc.lastLine()) return lineN
+  let line = getLine(doc, lineN), merged
+  if (!lineIsHidden(doc, line)) return lineN
+  while (merged = collapsedSpanAtEnd(line))
+    line = merged.find(1, true).line
+  return lineNo(line) + 1
+}
+
+// Compute whether a line is hidden. Lines count as hidden when they
+// are part of a visual line that starts with another line, or when
+// they are entirely covered by collapsed, non-widget span.
+export function lineIsHidden(doc, line) {
+  let sps = sawCollapsedSpans && line.markedSpans
+  if (sps) for (let sp, i = 0; i < sps.length; ++i) {
+    sp = sps[i]
+    if (!sp.marker.collapsed) continue
+    if (sp.from == null) return true
+    if (sp.marker.widgetNode) continue
+    if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp))
+      return true
+  }
+}
+function lineIsHiddenInner(doc, line, span) {
+  if (span.to == null) {
+    let end = span.marker.find(1, true)
+    return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker))
+  }
+  if (span.marker.inclusiveRight && span.to == line.text.length)
+    return true
+  for (let sp, i = 0; i < line.markedSpans.length; ++i) {
+    sp = line.markedSpans[i]
+    if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to &&
+        (sp.to == null || sp.to != span.from) &&
+        (sp.marker.inclusiveLeft || span.marker.inclusiveRight) &&
+        lineIsHiddenInner(doc, line, sp)) return true
+  }
+}
+
+// Find the height above the given line.
+export function heightAtLine(lineObj) {
+  lineObj = visualLine(lineObj)
+
+  let h = 0, chunk = lineObj.parent
+  for (let i = 0; i < chunk.lines.length; ++i) {
+    let line = chunk.lines[i]
+    if (line == lineObj) break
+    else h += line.height
+  }
+  for (let p = chunk.parent; p; chunk = p, p = chunk.parent) {
+    for (let i = 0; i < p.children.length; ++i) {
+      let cur = p.children[i]
+      if (cur == chunk) break
+      else h += cur.height
+    }
+  }
+  return h
+}
+
+// Compute the character length of a line, taking into account
+// collapsed ranges (see markText) that might hide parts, and join
+// other lines onto it.
+export function lineLength(line) {
+  if (line.height == 0) return 0
+  let len = line.text.length, merged, cur = line
+  while (merged = collapsedSpanAtStart(cur)) {
+    let found = merged.find(0, true)
+    cur = found.from.line
+    len += found.from.ch - found.to.ch
+  }
+  cur = line
+  while (merged = collapsedSpanAtEnd(cur)) {
+    let found = merged.find(0, true)
+    len -= cur.text.length - found.from.ch
+    cur = found.to.line
+    len += cur.text.length - found.to.ch
+  }
+  return len
+}
+
+// Find the longest line in the document.
+export function findMaxLine(cm) {
+  let d = cm.display, doc = cm.doc
+  d.maxLine = getLine(doc, doc.first)
+  d.maxLineLength = lineLength(d.maxLine)
+  d.maxLineChanged = true
+  doc.iter(line => {
+    let len = lineLength(line)
+    if (len > d.maxLineLength) {
+      d.maxLineLength = len
+      d.maxLine = line
+    }
+  })
+}
diff --git a/public/codemirror/src/line/utils_line.js b/public/codemirror/src/line/utils_line.js
new file mode 100644
index 000000000..e4e6943f5
--- /dev/null
+++ b/public/codemirror/src/line/utils_line.js
@@ -0,0 +1,85 @@
+import { indexOf } from "../util/misc"
+
+// Find the line object corresponding to the given line number.
+export function getLine(doc, n) {
+  n -= doc.first
+  if (n < 0 || n >= doc.size) throw new Error("There is no line " + (n + doc.first) + " in the document.")
+  let chunk = doc
+  while (!chunk.lines) {
+    for (let i = 0;; ++i) {
+      let child = chunk.children[i], sz = child.chunkSize()
+      if (n < sz) { chunk = child; break }
+      n -= sz
+    }
+  }
+  return chunk.lines[n]
+}
+
+// Get the part of a document between two positions, as an array of
+// strings.
+export function getBetween(doc, start, end) {
+  let out = [], n = start.line
+  doc.iter(start.line, end.line + 1, line => {
+    let text = line.text
+    if (n == end.line) text = text.slice(0, end.ch)
+    if (n == start.line) text = text.slice(start.ch)
+    out.push(text)
+    ++n
+  })
+  return out
+}
+// Get the lines between from and to, as array of strings.
+export function getLines(doc, from, to) {
+  let out = []
+  doc.iter(from, to, line => { out.push(line.text) }) // iter aborts when callback returns truthy value
+  return out
+}
+
+// Update the height of a line, propagating the height change
+// upwards to parent nodes.
+export function updateLineHeight(line, height) {
+  let diff = height - line.height
+  if (diff) for (let n = line; n; n = n.parent) n.height += diff
+}
+
+// Given a line object, find its line number by walking up through
+// its parent links.
+export function lineNo(line) {
+  if (line.parent == null) return null
+  let cur = line.parent, no = indexOf(cur.lines, line)
+  for (let chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) {
+    for (let i = 0;; ++i) {
+      if (chunk.children[i] == cur) break
+      no += chunk.children[i].chunkSize()
+    }
+  }
+  return no + cur.first
+}
+
+// Find the line at the given vertical position, using the height
+// information in the document tree.
+export function lineAtHeight(chunk, h) {
+  let n = chunk.first
+  outer: do {
+    for (let i = 0; i < chunk.children.length; ++i) {
+      let child = chunk.children[i], ch = child.height
+      if (h < ch) { chunk = child; continue outer }
+      h -= ch
+      n += child.chunkSize()
+    }
+    return n
+  } while (!chunk.lines)
+  let i = 0
+  for (; i < chunk.lines.length; ++i) {
+    let line = chunk.lines[i], lh = line.height
+    if (h < lh) break
+    h -= lh
+  }
+  return n + i
+}
+
+export function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size}
+
+export function lineNumberFor(options, i) {
+  return String(options.lineNumberFormatter(i + options.firstLineNumber))
+}
diff --git a/public/codemirror/src/measurement/position_measurement.js b/public/codemirror/src/measurement/position_measurement.js
new file mode 100644
index 000000000..1d5207800
--- /dev/null
+++ b/public/codemirror/src/measurement/position_measurement.js
@@ -0,0 +1,606 @@
+import { moveVisually } from "../input/movement"
+import { buildLineContent, LineView } from "../line/line_data"
+import { clipPos, Pos } from "../line/pos"
+import { collapsedSpanAtEnd, heightAtLine, lineIsHidden, visualLine } from "../line/spans"
+import { getLine, lineAtHeight, lineNo, updateLineHeight } from "../line/utils_line"
+import { bidiOther, getBidiPartAt, getOrder } from "../util/bidi"
+import { ie, ie_version } from "../util/browser"
+import { elt, removeChildren, range, removeChildrenAndAdd } from "../util/dom"
+import { e_target } from "../util/event"
+import { hasBadZoomedRects } from "../util/feature_detection"
+import { countColumn, findFirst, isExtendingChar, scrollerGap, skipExtendingChars } from "../util/misc"
+import { updateLineForChanges } from "../display/update_line"
+
+import { widgetHeight } from "./widgets"
+
+// POSITION MEASUREMENT
+
+export function paddingTop(display) {return display.lineSpace.offsetTop}
+export function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight}
+export function paddingH(display) {
+  if (display.cachedPaddingH) return display.cachedPaddingH
+  let e = removeChildrenAndAdd(display.measure, elt("pre", "x"))
+  let style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle
+  let data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)}
+  if (!isNaN(data.left) && !isNaN(data.right)) display.cachedPaddingH = data
+  return data
+}
+
+export function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth }
+export function displayWidth(cm) {
+  return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth
+}
+export function displayHeight(cm) {
+  return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight
+}
+
+// Ensure the lineView.wrapping.heights array is populated. This is
+// an array of bottom offsets for the lines that make up a drawn
+// line. When lineWrapping is on, there might be more than one
+// height.
+function ensureLineHeights(cm, lineView, rect) {
+  let wrapping = cm.options.lineWrapping
+  let curWidth = wrapping && displayWidth(cm)
+  if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) {
+    let heights = lineView.measure.heights = []
+    if (wrapping) {
+      lineView.measure.width = curWidth
+      let rects = lineView.text.firstChild.getClientRects()
+      for (let i = 0; i < rects.length - 1; i++) {
+        let cur = rects[i], next = rects[i + 1]
+        if (Math.abs(cur.bottom - next.bottom) > 2)
+          heights.push((cur.bottom + next.top) / 2 - rect.top)
+      }
+    }
+    heights.push(rect.bottom - rect.top)
+  }
+}
+
+// Find a line map (mapping character offsets to text nodes) and a
+// measurement cache for the given line number. (A line view might
+// contain multiple lines when collapsed ranges are present.)
+export function mapFromLineView(lineView, line, lineN) {
+  if (lineView.line == line)
+    return {map: lineView.measure.map, cache: lineView.measure.cache}
+  for (let i = 0; i < lineView.rest.length; i++)
+    if (lineView.rest[i] == line)
+      return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]}
+  for (let i = 0; i < lineView.rest.length; i++)
+    if (lineNo(lineView.rest[i]) > lineN)
+      return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i], before: true}
+}
+
+// Render a line into the hidden node display.externalMeasured. Used
+// when measurement is needed for a line that's not in the viewport.
+function updateExternalMeasurement(cm, line) {
+  line = visualLine(line)
+  let lineN = lineNo(line)
+  let view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN)
+  view.lineN = lineN
+  let built = view.built = buildLineContent(cm, view)
+  view.text = built.pre
+  removeChildrenAndAdd(cm.display.lineMeasure, built.pre)
+  return view
+}
+
+// Get a {top, bottom, left, right} box (in line-local coordinates)
+// for a given character.
+export function measureChar(cm, line, ch, bias) {
+  return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias)
+}
+
+// Find a line view that corresponds to the given line number.
+export function findViewForLine(cm, lineN) {
+  if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo)
+    return cm.display.view[findViewIndex(cm, lineN)]
+  let ext = cm.display.externalMeasured
+  if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size)
+    return ext
+}
+
+// Measurement can be split in two steps, the set-up work that
+// applies to the whole line, and the measurement of the actual
+// character. Functions like coordsChar, that need to do a lot of
+// measurements in a row, can thus ensure that the set-up work is
+// only done once.
+export function prepareMeasureForLine(cm, line) {
+  let lineN = lineNo(line)
+  let view = findViewForLine(cm, lineN)
+  if (view && !view.text) {
+    view = null
+  } else if (view && view.changes) {
+    updateLineForChanges(cm, view, lineN, getDimensions(cm))
+    cm.curOp.forceUpdate = true
+  }
+  if (!view)
+    view = updateExternalMeasurement(cm, line)
+
+  let info = mapFromLineView(view, line, lineN)
+  return {
+    line: line, view: view, rect: null,
+    map: info.map, cache: info.cache, before: info.before,
+    hasHeights: false
+  }
+}
+
+// Given a prepared measurement object, measures the position of an
+// actual character (or fetches it from the cache).
+export function measureCharPrepared(cm, prepared, ch, bias, varHeight) {
+  if (prepared.before) ch = -1
+  let key = ch + (bias || ""), found
+  if (prepared.cache.hasOwnProperty(key)) {
+    found = prepared.cache[key]
+  } else {
+    if (!prepared.rect)
+      prepared.rect = prepared.view.text.getBoundingClientRect()
+    if (!prepared.hasHeights) {
+      ensureLineHeights(cm, prepared.view, prepared.rect)
+      prepared.hasHeights = true
+    }
+    found = measureCharInner(cm, prepared, ch, bias)
+    if (!found.bogus) prepared.cache[key] = found
+  }
+  return {left: found.left, right: found.right,
+          top: varHeight ? found.rtop : found.top,
+          bottom: varHeight ? found.rbottom : found.bottom}
+}
+
+let nullRect = {left: 0, right: 0, top: 0, bottom: 0}
+
+export function nodeAndOffsetInLineMap(map, ch, bias) {
+  let node, start, end, collapse, mStart, mEnd
+  // First, search the line map for the text node corresponding to,
+  // or closest to, the target character.
+  for (let i = 0; i < map.length; i += 3) {
+    mStart = map[i]
+    mEnd = map[i + 1]
+    if (ch < mStart) {
+      start = 0; end = 1
+      collapse = "left"
+    } else if (ch < mEnd) {
+      start = ch - mStart
+      end = start + 1
+    } else if (i == map.length - 3 || ch == mEnd && map[i + 3] > ch) {
+      end = mEnd - mStart
+      start = end - 1
+      if (ch >= mEnd) collapse = "right"
+    }
+    if (start != null) {
+      node = map[i + 2]
+      if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right"))
+        collapse = bias
+      if (bias == "left" && start == 0)
+        while (i && map[i - 2] == map[i - 3] && map[i - 1].insertLeft) {
+          node = map[(i -= 3) + 2]
+          collapse = "left"
+        }
+      if (bias == "right" && start == mEnd - mStart)
+        while (i < map.length - 3 && map[i + 3] == map[i + 4] && !map[i + 5].insertLeft) {
+          node = map[(i += 3) + 2]
+          collapse = "right"
+        }
+      break
+    }
+  }
+  return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd}
+}
+
+function getUsefulRect(rects, bias) {
+  let rect = nullRect
+  if (bias == "left") for (let i = 0; i < rects.length; i++) {
+    if ((rect = rects[i]).left != rect.right) break
+  } else for (let i = rects.length - 1; i >= 0; i--) {
+    if ((rect = rects[i]).left != rect.right) break
+  }
+  return rect
+}
+
+function measureCharInner(cm, prepared, ch, bias) {
+  let place = nodeAndOffsetInLineMap(prepared.map, ch, bias)
+  let node = place.node, start = place.start, end = place.end, collapse = place.collapse
+
+  let rect
+  if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates.
+    for (let i = 0; i < 4; i++) { // Retry a maximum of 4 times when nonsense rectangles are returned
+      while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) --start
+      while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) ++end
+      if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart)
+        rect = node.parentNode.getBoundingClientRect()
+      else
+        rect = getUsefulRect(range(node, start, end).getClientRects(), bias)
+      if (rect.left || rect.right || start == 0) break
+      end = start
+      start = start - 1
+      collapse = "right"
+    }
+    if (ie && ie_version < 11) rect = maybeUpdateRectForZooming(cm.display.measure, rect)
+  } else { // If it is a widget, simply get the box for the whole widget.
+    if (start > 0) collapse = bias = "right"
+    let rects
+    if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1)
+      rect = rects[bias == "right" ? rects.length - 1 : 0]
+    else
+      rect = node.getBoundingClientRect()
+  }
+  if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) {
+    let rSpan = node.parentNode.getClientRects()[0]
+    if (rSpan)
+      rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}
+    else
+      rect = nullRect
+  }
+
+  let rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top
+  let mid = (rtop + rbot) / 2
+  let heights = prepared.view.measure.heights
+  let i = 0
+  for (; i < heights.length - 1; i++)
+    if (mid < heights[i]) break
+  let top = i ? heights[i - 1] : 0, bot = heights[i]
+  let result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left,
+                right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left,
+                top: top, bottom: bot}
+  if (!rect.left && !rect.right) result.bogus = true
+  if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot }
+
+  return result
+}
+
+// Work around problem with bounding client rects on ranges being
+// returned incorrectly when zoomed on IE10 and below.
+function maybeUpdateRectForZooming(measure, rect) {
+  if (!window.screen || screen.logicalXDPI == null ||
+      screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure))
+    return rect
+  let scaleX = screen.logicalXDPI / screen.deviceXDPI
+  let scaleY = screen.logicalYDPI / screen.deviceYDPI
+  return {left: rect.left * scaleX, right: rect.right * scaleX,
+          top: rect.top * scaleY, bottom: rect.bottom * scaleY}
+}
+
+export function clearLineMeasurementCacheFor(lineView) {
+  if (lineView.measure) {
+    lineView.measure.cache = {}
+    lineView.measure.heights = null
+    if (lineView.rest) for (let i = 0; i < lineView.rest.length; i++)
+      lineView.measure.caches[i] = {}
+  }
+}
+
+export function clearLineMeasurementCache(cm) {
+  cm.display.externalMeasure = null
+  removeChildren(cm.display.lineMeasure)
+  for (let i = 0; i < cm.display.view.length; i++)
+    clearLineMeasurementCacheFor(cm.display.view[i])
+}
+
+export function clearCaches(cm) {
+  clearLineMeasurementCache(cm)
+  cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null
+  if (!cm.options.lineWrapping) cm.display.maxLineChanged = true
+  cm.display.lineNumChars = null
+}
+
+function pageScrollX() { return window.pageXOffset || (document.documentElement || document.body).scrollLeft }
+function pageScrollY() { return window.pageYOffset || (document.documentElement || document.body).scrollTop }
+
+// Converts a {top, bottom, left, right} box from line-local
+// coordinates into another coordinate system. Context may be one of
+// "line", "div" (display.lineDiv), "local"./null (editor), "window",
+// or "page".
+export function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) {
+  if (!includeWidgets && lineObj.widgets) for (let i = 0; i < lineObj.widgets.length; ++i) if (lineObj.widgets[i].above) {
+    let size = widgetHeight(lineObj.widgets[i])
+    rect.top += size; rect.bottom += size
+  }
+  if (context == "line") return rect
+  if (!context) context = "local"
+  let yOff = heightAtLine(lineObj)
+  if (context == "local") yOff += paddingTop(cm.display)
+  else yOff -= cm.display.viewOffset
+  if (context == "page" || context == "window") {
+    let lOff = cm.display.lineSpace.getBoundingClientRect()
+    yOff += lOff.top + (context == "window" ? 0 : pageScrollY())
+    let xOff = lOff.left + (context == "window" ? 0 : pageScrollX())
+    rect.left += xOff; rect.right += xOff
+  }
+  rect.top += yOff; rect.bottom += yOff
+  return rect
+}
+
+// Coverts a box from "div" coords to another coordinate system.
+// Context may be "window", "page", "div", or "local"./null.
+export function fromCoordSystem(cm, coords, context) {
+  if (context == "div") return coords
+  let left = coords.left, top = coords.top
+  // First move into "page" coordinate system
+  if (context == "page") {
+    left -= pageScrollX()
+    top -= pageScrollY()
+  } else if (context == "local" || !context) {
+    let localBox = cm.display.sizer.getBoundingClientRect()
+    left += localBox.left
+    top += localBox.top
+  }
+
+  let lineSpaceBox = cm.display.lineSpace.getBoundingClientRect()
+  return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top}
+}
+
+export function charCoords(cm, pos, context, lineObj, bias) {
+  if (!lineObj) lineObj = getLine(cm.doc, pos.line)
+  return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context)
+}
+
+// Returns a box for a given cursor position, which may have an
+// 'other' property containing the position of the secondary cursor
+// on a bidi boundary.
+// A cursor Pos(line, char, "before") is on the same visual line as `char - 1`
+// and after `char - 1` in writing order of `char - 1`
+// A cursor Pos(line, char, "after") is on the same visual line as `char`
+// and before `char` in writing order of `char`
+// Examples (upper-case letters are RTL, lower-case are LTR):
+//     Pos(0, 1, ...)
+//     before   after
+// ab     a|b     a|b
+// aB     a|B     aB|
+// Ab     |Ab     A|b
+// AB     B|A     B|A
+// Every position after the last character on a line is considered to stick
+// to the last character on the line.
+export function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) {
+  lineObj = lineObj || getLine(cm.doc, pos.line)
+  if (!preparedMeasure) preparedMeasure = prepareMeasureForLine(cm, lineObj)
+  function get(ch, right) {
+    let m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight)
+    if (right) m.left = m.right; else m.right = m.left
+    return intoCoordSystem(cm, lineObj, m, context)
+  }
+  let order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky
+  if (ch >= lineObj.text.length) {
+    ch = lineObj.text.length
+    sticky = "before"
+  } else if (ch <= 0) {
+    ch = 0
+    sticky = "after"
+  }
+  if (!order) return get(sticky == "before" ? ch - 1 : ch, sticky == "before")
+
+  function getBidi(ch, partPos, invert) {
+    let part = order[partPos], right = (part.level % 2) != 0
+    return get(invert ? ch - 1 : ch, right != invert)
+  }
+  let partPos = getBidiPartAt(order, ch, sticky)
+  let other = bidiOther
+  let val = getBidi(ch, partPos, sticky == "before")
+  if (other != null) val.other = getBidi(ch, other, sticky != "before")
+  return val
+}
+
+// Used to cheaply estimate the coordinates for a position. Used for
+// intermediate scroll updates.
+export function estimateCoords(cm, pos) {
+  let left = 0
+  pos = clipPos(cm.doc, pos)
+  if (!cm.options.lineWrapping) left = charWidth(cm.display) * pos.ch
+  let lineObj = getLine(cm.doc, pos.line)
+  let top = heightAtLine(lineObj) + paddingTop(cm.display)
+  return {left: left, right: left, top: top, bottom: top + lineObj.height}
+}
+
+// Positions returned by coordsChar contain some extra information.
+// xRel is the relative x position of the input coordinates compared
+// to the found position (so xRel > 0 means the coordinates are to
+// the right of the character position, for example). When outside
+// is true, that means the coordinates lie outside the line's
+// vertical range.
+function PosWithInfo(line, ch, sticky, outside, xRel) {
+  let pos = Pos(line, ch, sticky)
+  pos.xRel = xRel
+  if (outside) pos.outside = true
+  return pos
+}
+
+// Compute the character position closest to the given coordinates.
+// Input must be lineSpace-local ("div" coordinate system).
+export function coordsChar(cm, x, y) {
+  let doc = cm.doc
+  y += cm.display.viewOffset
+  if (y < 0) return PosWithInfo(doc.first, 0, null, true, -1)
+  let lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1
+  if (lineN > last)
+    return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, true, 1)
+  if (x < 0) x = 0
+
+  let lineObj = getLine(doc, lineN)
+  for (;;) {
+    let found = coordsCharInner(cm, lineObj, lineN, x, y)
+    let merged = collapsedSpanAtEnd(lineObj)
+    let mergedPos = merged && merged.find(0, true)
+    if (merged && (found.ch > mergedPos.from.ch || found.ch == mergedPos.from.ch && found.xRel > 0))
+      lineN = lineNo(lineObj = mergedPos.to.line)
+    else
+      return found
+  }
+}
+
+function wrappedLineExtent(cm, lineObj, preparedMeasure, y) {
+  let measure = ch => intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, ch), "line")
+  let end = lineObj.text.length
+  let begin = findFirst(ch => measure(ch - 1).bottom <= y, end, 0)
+  end = findFirst(ch => measure(ch).top > y, begin, end)
+  return {begin, end}
+}
+
+export function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) {
+  let targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), "line").top
+  return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop)
+}
+
+function coordsCharInner(cm, lineObj, lineNo, x, y) {
+  y -= heightAtLine(lineObj)
+  let begin = 0, end = lineObj.text.length
+  let preparedMeasure = prepareMeasureForLine(cm, lineObj)
+  let pos
+  let order = getOrder(lineObj, cm.doc.direction)
+  if (order) {
+    if (cm.options.lineWrapping) {
+      ;({begin, end} = wrappedLineExtent(cm, lineObj, preparedMeasure, y))
+    }
+    pos = new Pos(lineNo, begin)
+    let beginLeft = cursorCoords(cm, pos, "line", lineObj, preparedMeasure).left
+    let dir = beginLeft < x ? 1 : -1
+    let prevDiff, diff = beginLeft - x, prevPos
+    do {
+      prevDiff = diff
+      prevPos = pos
+      pos = moveVisually(cm, lineObj, pos, dir)
+      if (pos == null || pos.ch < begin || end <= (pos.sticky == "before" ? pos.ch - 1 : pos.ch)) {
+        pos = prevPos
+        break
+      }
+      diff = cursorCoords(cm, pos, "line", lineObj, preparedMeasure).left - x
+    } while ((dir < 0) != (diff < 0) && (Math.abs(diff) <= Math.abs(prevDiff)))
+    if (Math.abs(diff) > Math.abs(prevDiff)) {
+      if ((diff < 0) == (prevDiff < 0)) throw new Error("Broke out of infinite loop in coordsCharInner")
+      pos = prevPos
+    }
+  } else {
+    let ch = findFirst(ch => {
+      let box = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, ch), "line")
+      if (box.top > y) {
+        // For the cursor stickiness
+        end = Math.min(ch, end)
+        return true
+      }
+      else if (box.bottom <= y) return false
+      else if (box.left > x) return true
+      else if (box.right < x) return false
+      else return (x - box.left < box.right - x)
+    }, begin, end)
+    ch = skipExtendingChars(lineObj.text, ch, 1)
+    pos = new Pos(lineNo, ch, ch == end ? "before" : "after")
+  }
+  let coords = cursorCoords(cm, pos, "line", lineObj, preparedMeasure)
+  if (y < coords.top || coords.bottom < y) pos.outside = true
+  pos.xRel = x < coords.left ? -1 : (x > coords.right ? 1 : 0)
+  return pos
+}
+
+let measureText
+// Compute the default text height.
+export function textHeight(display) {
+  if (display.cachedTextHeight != null) return display.cachedTextHeight
+  if (measureText == null) {
+    measureText = elt("pre")
+    // Measure a bunch of lines, for browsers that compute
+    // fractional heights.
+    for (let i = 0; i < 49; ++i) {
+      measureText.appendChild(document.createTextNode("x"))
+      measureText.appendChild(elt("br"))
+    }
+    measureText.appendChild(document.createTextNode("x"))
+  }
+  removeChildrenAndAdd(display.measure, measureText)
+  let height = measureText.offsetHeight / 50
+  if (height > 3) display.cachedTextHeight = height
+  removeChildren(display.measure)
+  return height || 1
+}
+
+// Compute the default character width.
+export function charWidth(display) {
+  if (display.cachedCharWidth != null) return display.cachedCharWidth
+  let anchor = elt("span", "xxxxxxxxxx")
+  let pre = elt("pre", [anchor])
+  removeChildrenAndAdd(display.measure, pre)
+  let rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10
+  if (width > 2) display.cachedCharWidth = width
+  return width || 10
+}
+
+// Do a bulk-read of the DOM positions and sizes needed to draw the
+// view, so that we don't interleave reading and writing to the DOM.
+export function getDimensions(cm) {
+  let d = cm.display, left = {}, width = {}
+  let gutterLeft = d.gutters.clientLeft
+  for (let n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) {
+    left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft
+    width[cm.options.gutters[i]] = n.clientWidth
+  }
+  return {fixedPos: compensateForHScroll(d),
+          gutterTotalWidth: d.gutters.offsetWidth,
+          gutterLeft: left,
+          gutterWidth: width,
+          wrapperWidth: d.wrapper.clientWidth}
+}
+
+// Computes display.scroller.scrollLeft + display.gutters.offsetWidth,
+// but using getBoundingClientRect to get a sub-pixel-accurate
+// result.
+export function compensateForHScroll(display) {
+  return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left
+}
+
+// Returns a function that estimates the height of a line, to use as
+// first approximation until the line becomes visible (and is thus
+// properly measurable).
+export function estimateHeight(cm) {
+  let th = textHeight(cm.display), wrapping = cm.options.lineWrapping
+  let perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3)
+  return line => {
+    if (lineIsHidden(cm.doc, line)) return 0
+
+    let widgetsHeight = 0
+    if (line.widgets) for (let i = 0; i < line.widgets.length; i++) {
+      if (line.widgets[i].height) widgetsHeight += line.widgets[i].height
+    }
+
+    if (wrapping)
+      return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th
+    else
+      return widgetsHeight + th
+  }
+}
+
+export function estimateLineHeights(cm) {
+  let doc = cm.doc, est = estimateHeight(cm)
+  doc.iter(line => {
+    let estHeight = est(line)
+    if (estHeight != line.height) updateLineHeight(line, estHeight)
+  })
+}
+
+// Given a mouse event, find the corresponding position. If liberal
+// is false, it checks whether a gutter or scrollbar was clicked,
+// and returns null if it was. forRect is used by rectangular
+// selections, and tries to estimate a character position even for
+// coordinates beyond the right of the text.
+export function posFromMouse(cm, e, liberal, forRect) {
+  let display = cm.display
+  if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") return null
+
+  let x, y, space = display.lineSpace.getBoundingClientRect()
+  // Fails unpredictably on IE[67] when mouse is dragged around quickly.
+  try { x = e.clientX - space.left; y = e.clientY - space.top }
+  catch (e) { return null }
+  let coords = coordsChar(cm, x, y), line
+  if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) {
+    let colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length
+    coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff))
+  }
+  return coords
+}
+
+// Find the view element corresponding to a given line. Return null
+// when the line isn't visible.
+export function findViewIndex(cm, n) {
+  if (n >= cm.display.viewTo) return null
+  n -= cm.display.viewFrom
+  if (n < 0) return null
+  let view = cm.display.view
+  for (let i = 0; i < view.length; i++) {
+    n -= view[i].size
+    if (n < 0) return i
+  }
+}
diff --git a/public/codemirror/src/measurement/widgets.js b/public/codemirror/src/measurement/widgets.js
new file mode 100644
index 000000000..554cf8097
--- /dev/null
+++ b/public/codemirror/src/measurement/widgets.js
@@ -0,0 +1,26 @@
+import { contains, elt, removeChildrenAndAdd } from "../util/dom"
+import { e_target } from "../util/event"
+
+export function widgetHeight(widget) {
+  if (widget.height != null) return widget.height
+  let cm = widget.doc.cm
+  if (!cm) return 0
+  if (!contains(document.body, widget.node)) {
+    let parentStyle = "position: relative;"
+    if (widget.coverGutter)
+      parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;"
+    if (widget.noHScroll)
+      parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;"
+    removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle))
+  }
+  return widget.height = widget.node.parentNode.offsetHeight
+}
+
+// Return true when the given mouse event happened in a widget
+export function eventInWidget(display, e) {
+  for (let n = e_target(e); n != display.wrapper; n = n.parentNode) {
+    if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") ||
+        (n.parentNode == display.sizer && n != display.mover))
+      return true
+  }
+}
diff --git a/public/codemirror/src/model/Doc.js b/public/codemirror/src/model/Doc.js
new file mode 100644
index 000000000..0ee45247d
--- /dev/null
+++ b/public/codemirror/src/model/Doc.js
@@ -0,0 +1,431 @@
+import CodeMirror from "../edit/CodeMirror"
+import { docMethodOp } from "../display/operations"
+import { Line } from "../line/line_data"
+import { clipPos, clipPosArray, Pos } from "../line/pos"
+import { visualLine } from "../line/spans"
+import { getBetween, getLine, getLines, isLine, lineNo } from "../line/utils_line"
+import { classTest } from "../util/dom"
+import { splitLinesAuto } from "../util/feature_detection"
+import { createObj, map, isEmpty, sel_dontScroll } from "../util/misc"
+import { ensureCursorVisible } from "../display/scrolling"
+
+import { changeLine, makeChange, makeChangeFromHistory, replaceRange } from "./changes"
+import { computeReplacedSel } from "./change_measurement"
+import { BranchChunk, LeafChunk } from "./chunk"
+import { directionChanged, linkedDocs, updateDoc } from "./document_data"
+import { copyHistoryArray, History } from "./history"
+import { addLineWidget } from "./line_widget"
+import { copySharedMarkers, detachSharedMarkers, findSharedMarkers, markText } from "./mark_text"
+import { normalizeSelection, Range, simpleSelection } from "./selection"
+import { extendSelection, extendSelections, setSelection, setSelectionReplaceHistory, setSimpleSelection } from "./selection_updates"
+
+let nextDocId = 0
+let Doc = function(text, mode, firstLine, lineSep, direction) {
+  if (!(this instanceof Doc)) return new Doc(text, mode, firstLine, lineSep, direction)
+  if (firstLine == null) firstLine = 0
+
+  BranchChunk.call(this, [new LeafChunk([new Line("", null)])])
+  this.first = firstLine
+  this.scrollTop = this.scrollLeft = 0
+  this.cantEdit = false
+  this.cleanGeneration = 1
+  this.frontier = firstLine
+  let start = Pos(firstLine, 0)
+  this.sel = simpleSelection(start)
+  this.history = new History(null)
+  this.id = ++nextDocId
+  this.modeOption = mode
+  this.lineSep = lineSep
+  this.direction = (direction == "rtl") ? "rtl" : "ltr"
+  this.extend = false
+
+  if (typeof text == "string") text = this.splitLines(text)
+  updateDoc(this, {from: start, to: start, text: text})
+  setSelection(this, simpleSelection(start), sel_dontScroll)
+}
+
+Doc.prototype = createObj(BranchChunk.prototype, {
+  constructor: Doc,
+  // Iterate over the document. Supports two forms -- with only one
+  // argument, it calls that for each line in the document. With
+  // three, it iterates over the range given by the first two (with
+  // the second being non-inclusive).
+  iter: function(from, to, op) {
+    if (op) this.iterN(from - this.first, to - from, op)
+    else this.iterN(this.first, this.first + this.size, from)
+  },
+
+  // Non-public interface for adding and removing lines.
+  insert: function(at, lines) {
+    let height = 0
+    for (let i = 0; i < lines.length; ++i) height += lines[i].height
+    this.insertInner(at - this.first, lines, height)
+  },
+  remove: function(at, n) { this.removeInner(at - this.first, n) },
+
+  // From here, the methods are part of the public interface. Most
+  // are also available from CodeMirror (editor) instances.
+
+  getValue: function(lineSep) {
+    let lines = getLines(this, this.first, this.first + this.size)
+    if (lineSep === false) return lines
+    return lines.join(lineSep || this.lineSeparator())
+  },
+  setValue: docMethodOp(function(code) {
+    let top = Pos(this.first, 0), last = this.first + this.size - 1
+    makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length),
+                      text: this.splitLines(code), origin: "setValue", full: true}, true)
+    setSelection(this, simpleSelection(top))
+  }),
+  replaceRange: function(code, from, to, origin) {
+    from = clipPos(this, from)
+    to = to ? clipPos(this, to) : from
+    replaceRange(this, code, from, to, origin)
+  },
+  getRange: function(from, to, lineSep) {
+    let lines = getBetween(this, clipPos(this, from), clipPos(this, to))
+    if (lineSep === false) return lines
+    return lines.join(lineSep || this.lineSeparator())
+  },
+
+  getLine: function(line) {let l = this.getLineHandle(line); return l && l.text},
+
+  getLineHandle: function(line) {if (isLine(this, line)) return getLine(this, line)},
+  getLineNumber: function(line) {return lineNo(line)},
+
+  getLineHandleVisualStart: function(line) {
+    if (typeof line == "number") line = getLine(this, line)
+    return visualLine(line)
+  },
+
+  lineCount: function() {return this.size},
+  firstLine: function() {return this.first},
+  lastLine: function() {return this.first + this.size - 1},
+
+  clipPos: function(pos) {return clipPos(this, pos)},
+
+  getCursor: function(start) {
+    let range = this.sel.primary(), pos
+    if (start == null || start == "head") pos = range.head
+    else if (start == "anchor") pos = range.anchor
+    else if (start == "end" || start == "to" || start === false) pos = range.to()
+    else pos = range.from()
+    return pos
+  },
+  listSelections: function() { return this.sel.ranges },
+  somethingSelected: function() {return this.sel.somethingSelected()},
+
+  setCursor: docMethodOp(function(line, ch, options) {
+    setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options)
+  }),
+  setSelection: docMethodOp(function(anchor, head, options) {
+    setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options)
+  }),
+  extendSelection: docMethodOp(function(head, other, options) {
+    extendSelection(this, clipPos(this, head), other && clipPos(this, other), options)
+  }),
+  extendSelections: docMethodOp(function(heads, options) {
+    extendSelections(this, clipPosArray(this, heads), options)
+  }),
+  extendSelectionsBy: docMethodOp(function(f, options) {
+    let heads = map(this.sel.ranges, f)
+    extendSelections(this, clipPosArray(this, heads), options)
+  }),
+  setSelections: docMethodOp(function(ranges, primary, options) {
+    if (!ranges.length) return
+    let out = []
+    for (let i = 0; i < ranges.length; i++)
+      out[i] = new Range(clipPos(this, ranges[i].anchor),
+                         clipPos(this, ranges[i].head))
+    if (primary == null) primary = Math.min(ranges.length - 1, this.sel.primIndex)
+    setSelection(this, normalizeSelection(out, primary), options)
+  }),
+  addSelection: docMethodOp(function(anchor, head, options) {
+    let ranges = this.sel.ranges.slice(0)
+    ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor)))
+    setSelection(this, normalizeSelection(ranges, ranges.length - 1), options)
+  }),
+
+  getSelection: function(lineSep) {
+    let ranges = this.sel.ranges, lines
+    for (let i = 0; i < ranges.length; i++) {
+      let sel = getBetween(this, ranges[i].from(), ranges[i].to())
+      lines = lines ? lines.concat(sel) : sel
+    }
+    if (lineSep === false) return lines
+    else return lines.join(lineSep || this.lineSeparator())
+  },
+  getSelections: function(lineSep) {
+    let parts = [], ranges = this.sel.ranges
+    for (let i = 0; i < ranges.length; i++) {
+      let sel = getBetween(this, ranges[i].from(), ranges[i].to())
+      if (lineSep !== false) sel = sel.join(lineSep || this.lineSeparator())
+      parts[i] = sel
+    }
+    return parts
+  },
+  replaceSelection: function(code, collapse, origin) {
+    let dup = []
+    for (let i = 0; i < this.sel.ranges.length; i++)
+      dup[i] = code
+    this.replaceSelections(dup, collapse, origin || "+input")
+  },
+  replaceSelections: docMethodOp(function(code, collapse, origin) {
+    let changes = [], sel = this.sel
+    for (let i = 0; i < sel.ranges.length; i++) {
+      let range = sel.ranges[i]
+      changes[i] = {from: range.from(), to: range.to(), text: this.splitLines(code[i]), origin: origin}
+    }
+    let newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse)
+    for (let i = changes.length - 1; i >= 0; i--)
+      makeChange(this, changes[i])
+    if (newSel) setSelectionReplaceHistory(this, newSel)
+    else if (this.cm) ensureCursorVisible(this.cm)
+  }),
+  undo: docMethodOp(function() {makeChangeFromHistory(this, "undo")}),
+  redo: docMethodOp(function() {makeChangeFromHistory(this, "redo")}),
+  undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true)}),
+  redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true)}),
+
+  setExtending: function(val) {this.extend = val},
+  getExtending: function() {return this.extend},
+
+  historySize: function() {
+    let hist = this.history, done = 0, undone = 0
+    for (let i = 0; i < hist.done.length; i++) if (!hist.done[i].ranges) ++done
+    for (let i = 0; i < hist.undone.length; i++) if (!hist.undone[i].ranges) ++undone
+    return {undo: done, redo: undone}
+  },
+  clearHistory: function() {this.history = new History(this.history.maxGeneration)},
+
+  markClean: function() {
+    this.cleanGeneration = this.changeGeneration(true)
+  },
+  changeGeneration: function(forceSplit) {
+    if (forceSplit)
+      this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null
+    return this.history.generation
+  },
+  isClean: function (gen) {
+    return this.history.generation == (gen || this.cleanGeneration)
+  },
+
+  getHistory: function() {
+    return {done: copyHistoryArray(this.history.done),
+            undone: copyHistoryArray(this.history.undone)}
+  },
+  setHistory: function(histData) {
+    let hist = this.history = new History(this.history.maxGeneration)
+    hist.done = copyHistoryArray(histData.done.slice(0), null, true)
+    hist.undone = copyHistoryArray(histData.undone.slice(0), null, true)
+  },
+
+  setGutterMarker: docMethodOp(function(line, gutterID, value) {
+    return changeLine(this, line, "gutter", line => {
+      let markers = line.gutterMarkers || (line.gutterMarkers = {})
+      markers[gutterID] = value
+      if (!value && isEmpty(markers)) line.gutterMarkers = null
+      return true
+    })
+  }),
+
+  clearGutter: docMethodOp(function(gutterID) {
+    this.iter(line => {
+      if (line.gutterMarkers && line.gutterMarkers[gutterID]) {
+        changeLine(this, line, "gutter", () => {
+          line.gutterMarkers[gutterID] = null
+          if (isEmpty(line.gutterMarkers)) line.gutterMarkers = null
+          return true
+        })
+      }
+    })
+  }),
+
+  lineInfo: function(line) {
+    let n
+    if (typeof line == "number") {
+      if (!isLine(this, line)) return null
+      n = line
+      line = getLine(this, line)
+      if (!line) return null
+    } else {
+      n = lineNo(line)
+      if (n == null) return null
+    }
+    return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers,
+            textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass,
+            widgets: line.widgets}
+  },
+
+  addLineClass: docMethodOp(function(handle, where, cls) {
+    return changeLine(this, handle, where == "gutter" ? "gutter" : "class", line => {
+      let prop = where == "text" ? "textClass"
+               : where == "background" ? "bgClass"
+               : where == "gutter" ? "gutterClass" : "wrapClass"
+      if (!line[prop]) line[prop] = cls
+      else if (classTest(cls).test(line[prop])) return false
+      else line[prop] += " " + cls
+      return true
+    })
+  }),
+  removeLineClass: docMethodOp(function(handle, where, cls) {
+    return changeLine(this, handle, where == "gutter" ? "gutter" : "class", line => {
+      let prop = where == "text" ? "textClass"
+               : where == "background" ? "bgClass"
+               : where == "gutter" ? "gutterClass" : "wrapClass"
+      let cur = line[prop]
+      if (!cur) return false
+      else if (cls == null) line[prop] = null
+      else {
+        let found = cur.match(classTest(cls))
+        if (!found) return false
+        let end = found.index + found[0].length
+        line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null
+      }
+      return true
+    })
+  }),
+
+  addLineWidget: docMethodOp(function(handle, node, options) {
+    return addLineWidget(this, handle, node, options)
+  }),
+  removeLineWidget: function(widget) { widget.clear() },
+
+  markText: function(from, to, options) {
+    return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range")
+  },
+  setBookmark: function(pos, options) {
+    let realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options),
+                    insertLeft: options && options.insertLeft,
+                    clearWhenEmpty: false, shared: options && options.shared,
+                    handleMouseEvents: options && options.handleMouseEvents}
+    pos = clipPos(this, pos)
+    return markText(this, pos, pos, realOpts, "bookmark")
+  },
+  findMarksAt: function(pos) {
+    pos = clipPos(this, pos)
+    let markers = [], spans = getLine(this, pos.line).markedSpans
+    if (spans) for (let i = 0; i < spans.length; ++i) {
+      let span = spans[i]
+      if ((span.from == null || span.from <= pos.ch) &&
+          (span.to == null || span.to >= pos.ch))
+        markers.push(span.marker.parent || span.marker)
+    }
+    return markers
+  },
+  findMarks: function(from, to, filter) {
+    from = clipPos(this, from); to = clipPos(this, to)
+    let found = [], lineNo = from.line
+    this.iter(from.line, to.line + 1, line => {
+      let spans = line.markedSpans
+      if (spans) for (let i = 0; i < spans.length; i++) {
+        let span = spans[i]
+        if (!(span.to != null && lineNo == from.line && from.ch >= span.to ||
+              span.from == null && lineNo != from.line ||
+              span.from != null && lineNo == to.line && span.from >= to.ch) &&
+            (!filter || filter(span.marker)))
+          found.push(span.marker.parent || span.marker)
+      }
+      ++lineNo
+    })
+    return found
+  },
+  getAllMarks: function() {
+    let markers = []
+    this.iter(line => {
+      let sps = line.markedSpans
+      if (sps) for (let i = 0; i < sps.length; ++i)
+        if (sps[i].from != null) markers.push(sps[i].marker)
+    })
+    return markers
+  },
+
+  posFromIndex: function(off) {
+    let ch, lineNo = this.first, sepSize = this.lineSeparator().length
+    this.iter(line => {
+      let sz = line.text.length + sepSize
+      if (sz > off) { ch = off; return true }
+      off -= sz
+      ++lineNo
+    })
+    return clipPos(this, Pos(lineNo, ch))
+  },
+  indexFromPos: function (coords) {
+    coords = clipPos(this, coords)
+    let index = coords.ch
+    if (coords.line < this.first || coords.ch < 0) return 0
+    let sepSize = this.lineSeparator().length
+    this.iter(this.first, coords.line, line => { // iter aborts when callback returns a truthy value
+      index += line.text.length + sepSize
+    })
+    return index
+  },
+
+  copy: function(copyHistory) {
+    let doc = new Doc(getLines(this, this.first, this.first + this.size),
+                      this.modeOption, this.first, this.lineSep, this.direction)
+    doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft
+    doc.sel = this.sel
+    doc.extend = false
+    if (copyHistory) {
+      doc.history.undoDepth = this.history.undoDepth
+      doc.setHistory(this.getHistory())
+    }
+    return doc
+  },
+
+  linkedDoc: function(options) {
+    if (!options) options = {}
+    let from = this.first, to = this.first + this.size
+    if (options.from != null && options.from > from) from = options.from
+    if (options.to != null && options.to < to) to = options.to
+    let copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction)
+    if (options.sharedHist) copy.history = this.history
+    ;(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist})
+    copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}]
+    copySharedMarkers(copy, findSharedMarkers(this))
+    return copy
+  },
+  unlinkDoc: function(other) {
+    if (other instanceof CodeMirror) other = other.doc
+    if (this.linked) for (let i = 0; i < this.linked.length; ++i) {
+      let link = this.linked[i]
+      if (link.doc != other) continue
+      this.linked.splice(i, 1)
+      other.unlinkDoc(this)
+      detachSharedMarkers(findSharedMarkers(this))
+      break
+    }
+    // If the histories were shared, split them again
+    if (other.history == this.history) {
+      let splitIds = [other.id]
+      linkedDocs(other, doc => splitIds.push(doc.id), true)
+      other.history = new History(null)
+      other.history.done = copyHistoryArray(this.history.done, splitIds)
+      other.history.undone = copyHistoryArray(this.history.undone, splitIds)
+    }
+  },
+  iterLinkedDocs: function(f) {linkedDocs(this, f)},
+
+  getMode: function() {return this.mode},
+  getEditor: function() {return this.cm},
+
+  splitLines: function(str) {
+    if (this.lineSep) return str.split(this.lineSep)
+    return splitLinesAuto(str)
+  },
+  lineSeparator: function() { return this.lineSep || "\n" },
+
+  setDirection: docMethodOp(function (dir) {
+    if (dir != "rtl") dir = "ltr"
+    if (dir == this.direction) return
+    this.direction = dir
+    this.iter(line => line.order = null)
+    if (this.cm) directionChanged(this.cm)
+  })
+})
+
+// Public alias.
+Doc.prototype.eachLine = Doc.prototype.iter
+
+export default Doc
diff --git a/public/codemirror/src/model/change_measurement.js b/public/codemirror/src/model/change_measurement.js
new file mode 100644
index 000000000..881f39eb4
--- /dev/null
+++ b/public/codemirror/src/model/change_measurement.js
@@ -0,0 +1,61 @@
+import { cmp, Pos } from "../line/pos"
+import { lst } from "../util/misc"
+
+import { normalizeSelection, Range, Selection } from "./selection"
+
+// Compute the position of the end of a change (its 'to' property
+// refers to the pre-change end).
+export function changeEnd(change) {
+  if (!change.text) return change.to
+  return Pos(change.from.line + change.text.length - 1,
+             lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0))
+}
+
+// Adjust a position to refer to the post-change position of the
+// same text, or the end of the change if the change covers it.
+function adjustForChange(pos, change) {
+  if (cmp(pos, change.from) < 0) return pos
+  if (cmp(pos, change.to) <= 0) return changeEnd(change)
+
+  let line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch
+  if (pos.line == change.to.line) ch += changeEnd(change).ch - change.to.ch
+  return Pos(line, ch)
+}
+
+export function computeSelAfterChange(doc, change) {
+  let out = []
+  for (let i = 0; i < doc.sel.ranges.length; i++) {
+    let range = doc.sel.ranges[i]
+    out.push(new Range(adjustForChange(range.anchor, change),
+                       adjustForChange(range.head, change)))
+  }
+  return normalizeSelection(out, doc.sel.primIndex)
+}
+
+function offsetPos(pos, old, nw) {
+  if (pos.line == old.line)
+    return Pos(nw.line, pos.ch - old.ch + nw.ch)
+  else
+    return Pos(nw.line + (pos.line - old.line), pos.ch)
+}
+
+// Used by replaceSelections to allow moving the selection to the
+// start or around the replaced test. Hint may be "start" or "around".
+export function computeReplacedSel(doc, changes, hint) {
+  let out = []
+  let oldPrev = Pos(doc.first, 0), newPrev = oldPrev
+  for (let i = 0; i < changes.length; i++) {
+    let change = changes[i]
+    let from = offsetPos(change.from, oldPrev, newPrev)
+    let to = offsetPos(changeEnd(change), oldPrev, newPrev)
+    oldPrev = change.to
+    newPrev = to
+    if (hint == "around") {
+      let range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0
+      out[i] = new Range(inv ? to : from, inv ? from : to)
+    } else {
+      out[i] = new Range(from, from)
+    }
+  }
+  return new Selection(out, doc.sel.primIndex)
+}
diff --git a/public/codemirror/src/model/changes.js b/public/codemirror/src/model/changes.js
new file mode 100644
index 000000000..c6692d4c5
--- /dev/null
+++ b/public/codemirror/src/model/changes.js
@@ -0,0 +1,330 @@
+import { startWorker } from "../display/highlight_worker"
+import { operation } from "../display/operations"
+import { regChange, regLineChange } from "../display/view_tracking"
+import { clipLine, clipPos, cmp, Pos } from "../line/pos"
+import { sawReadOnlySpans } from "../line/saw_special_spans"
+import { lineLength, removeReadOnlyRanges, stretchSpansOverChange, visualLine } from "../line/spans"
+import { getBetween, getLine, lineNo } from "../line/utils_line"
+import { estimateHeight } from "../measurement/position_measurement"
+import { hasHandler, signal, signalCursorActivity } from "../util/event"
+import { indexOf, lst, map, sel_dontScroll } from "../util/misc"
+import { signalLater } from "../util/operation_group"
+
+import { changeEnd, computeSelAfterChange } from "./change_measurement"
+import { isWholeLineUpdate, linkedDocs, updateDoc } from "./document_data"
+import { addChangeToHistory, historyChangeFromChange, mergeOldSpans, pushSelectionToHistory } from "./history"
+import { Range, Selection } from "./selection"
+import { setSelection, setSelectionNoUndo } from "./selection_updates"
+
+// UPDATING
+
+// Allow "beforeChange" event handlers to influence a change
+function filterChange(doc, change, update) {
+  let obj = {
+    canceled: false,
+    from: change.from,
+    to: change.to,
+    text: change.text,
+    origin: change.origin,
+    cancel: () => obj.canceled = true
+  }
+  if (update) obj.update = (from, to, text, origin) => {
+    if (from) obj.from = clipPos(doc, from)
+    if (to) obj.to = clipPos(doc, to)
+    if (text) obj.text = text
+    if (origin !== undefined) obj.origin = origin
+  }
+  signal(doc, "beforeChange", doc, obj)
+  if (doc.cm) signal(doc.cm, "beforeChange", doc.cm, obj)
+
+  if (obj.canceled) return null
+  return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin}
+}
+
+// Apply a change to a document, and add it to the document's
+// history, and propagating it to all linked documents.
+export function makeChange(doc, change, ignoreReadOnly) {
+  if (doc.cm) {
+    if (!doc.cm.curOp) return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly)
+    if (doc.cm.state.suppressEdits) return
+  }
+
+  if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) {
+    change = filterChange(doc, change, true)
+    if (!change) return
+  }
+
+  // Possibly split or suppress the update based on the presence
+  // of read-only spans in its range.
+  let split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to)
+  if (split) {
+    for (let i = split.length - 1; i >= 0; --i)
+      makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text})
+  } else {
+    makeChangeInner(doc, change)
+  }
+}
+
+function makeChangeInner(doc, change) {
+  if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) return
+  let selAfter = computeSelAfterChange(doc, change)
+  addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN)
+
+  makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change))
+  let rebased = []
+
+  linkedDocs(doc, (doc, sharedHist) => {
+    if (!sharedHist && indexOf(rebased, doc.history) == -1) {
+      rebaseHist(doc.history, change)
+      rebased.push(doc.history)
+    }
+    makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change))
+  })
+}
+
+// Revert a change stored in a document's history.
+export function makeChangeFromHistory(doc, type, allowSelectionOnly) {
+  if (doc.cm && doc.cm.state.suppressEdits && !allowSelectionOnly) return
+
+  let hist = doc.history, event, selAfter = doc.sel
+  let source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done
+
+  // Verify that there is a useable event (so that ctrl-z won't
+  // needlessly clear selection events)
+  let i = 0
+  for (; i < source.length; i++) {
+    event = source[i]
+    if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges)
+      break
+  }
+  if (i == source.length) return
+  hist.lastOrigin = hist.lastSelOrigin = null
+
+  for (;;) {
+    event = source.pop()
+    if (event.ranges) {
+      pushSelectionToHistory(event, dest)
+      if (allowSelectionOnly && !event.equals(doc.sel)) {
+        setSelection(doc, event, {clearRedo: false})
+        return
+      }
+      selAfter = event
+    }
+    else break
+  }
+
+  // Build up a reverse change object to add to the opposite history
+  // stack (redo when undoing, and vice versa).
+  let antiChanges = []
+  pushSelectionToHistory(selAfter, dest)
+  dest.push({changes: antiChanges, generation: hist.generation})
+  hist.generation = event.generation || ++hist.maxGeneration
+
+  let filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")
+
+  for (let i = event.changes.length - 1; i >= 0; --i) {
+    let change = event.changes[i]
+    change.origin = type
+    if (filter && !filterChange(doc, change, false)) {
+      source.length = 0
+      return
+    }
+
+    antiChanges.push(historyChangeFromChange(doc, change))
+
+    let after = i ? computeSelAfterChange(doc, change) : lst(source)
+    makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change))
+    if (!i && doc.cm) doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)})
+    let rebased = []
+
+    // Propagate to the linked documents
+    linkedDocs(doc, (doc, sharedHist) => {
+      if (!sharedHist && indexOf(rebased, doc.history) == -1) {
+        rebaseHist(doc.history, change)
+        rebased.push(doc.history)
+      }
+      makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change))
+    })
+  }
+}
+
+// Sub-views need their line numbers shifted when text is added
+// above or below them in the parent document.
+function shiftDoc(doc, distance) {
+  if (distance == 0) return
+  doc.first += distance
+  doc.sel = new Selection(map(doc.sel.ranges, range => new Range(
+    Pos(range.anchor.line + distance, range.anchor.ch),
+    Pos(range.head.line + distance, range.head.ch)
+  )), doc.sel.primIndex)
+  if (doc.cm) {
+    regChange(doc.cm, doc.first, doc.first - distance, distance)
+    for (let d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++)
+      regLineChange(doc.cm, l, "gutter")
+  }
+}
+
+// More lower-level change function, handling only a single document
+// (not linked ones).
+function makeChangeSingleDoc(doc, change, selAfter, spans) {
+  if (doc.cm && !doc.cm.curOp)
+    return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans)
+
+  if (change.to.line < doc.first) {
+    shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line))
+    return
+  }
+  if (change.from.line > doc.lastLine()) return
+
+  // Clip the change to the size of this doc
+  if (change.from.line < doc.first) {
+    let shift = change.text.length - 1 - (doc.first - change.from.line)
+    shiftDoc(doc, shift)
+    change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch),
+              text: [lst(change.text)], origin: change.origin}
+  }
+  let last = doc.lastLine()
+  if (change.to.line > last) {
+    change = {from: change.from, to: Pos(last, getLine(doc, last).text.length),
+              text: [change.text[0]], origin: change.origin}
+  }
+
+  change.removed = getBetween(doc, change.from, change.to)
+
+  if (!selAfter) selAfter = computeSelAfterChange(doc, change)
+  if (doc.cm) makeChangeSingleDocInEditor(doc.cm, change, spans)
+  else updateDoc(doc, change, spans)
+  setSelectionNoUndo(doc, selAfter, sel_dontScroll)
+}
+
+// Handle the interaction of a change to a document with the editor
+// that this document is part of.
+function makeChangeSingleDocInEditor(cm, change, spans) {
+  let doc = cm.doc, display = cm.display, from = change.from, to = change.to
+
+  let recomputeMaxLength = false, checkWidthStart = from.line
+  if (!cm.options.lineWrapping) {
+    checkWidthStart = lineNo(visualLine(getLine(doc, from.line)))
+    doc.iter(checkWidthStart, to.line + 1, line => {
+      if (line == display.maxLine) {
+        recomputeMaxLength = true
+        return true
+      }
+    })
+  }
+
+  if (doc.sel.contains(change.from, change.to) > -1)
+    signalCursorActivity(cm)
+
+  updateDoc(doc, change, spans, estimateHeight(cm))
+
+  if (!cm.options.lineWrapping) {
+    doc.iter(checkWidthStart, from.line + change.text.length, line => {
+      let len = lineLength(line)
+      if (len > display.maxLineLength) {
+        display.maxLine = line
+        display.maxLineLength = len
+        display.maxLineChanged = true
+        recomputeMaxLength = false
+      }
+    })
+    if (recomputeMaxLength) cm.curOp.updateMaxLine = true
+  }
+
+  // Adjust frontier, schedule worker
+  doc.frontier = Math.min(doc.frontier, from.line)
+  startWorker(cm, 400)
+
+  let lendiff = change.text.length - (to.line - from.line) - 1
+  // Remember that these lines changed, for updating the display
+  if (change.full)
+    regChange(cm)
+  else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change))
+    regLineChange(cm, from.line, "text")
+  else
+    regChange(cm, from.line, to.line + 1, lendiff)
+
+  let changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change")
+  if (changeHandler || changesHandler) {
+    let obj = {
+      from: from, to: to,
+      text: change.text,
+      removed: change.removed,
+      origin: change.origin
+    }
+    if (changeHandler) signalLater(cm, "change", cm, obj)
+    if (changesHandler) (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj)
+  }
+  cm.display.selForContextMenu = null
+}
+
+export function replaceRange(doc, code, from, to, origin) {
+  if (!to) to = from
+  if (cmp(to, from) < 0) { let tmp = to; to = from; from = tmp }
+  if (typeof code == "string") code = doc.splitLines(code)
+  makeChange(doc, {from: from, to: to, text: code, origin: origin})
+}
+
+// Rebasing/resetting history to deal with externally-sourced changes
+
+function rebaseHistSelSingle(pos, from, to, diff) {
+  if (to < pos.line) {
+    pos.line += diff
+  } else if (from < pos.line) {
+    pos.line = from
+    pos.ch = 0
+  }
+}
+
+// Tries to rebase an array of history events given a change in the
+// document. If the change touches the same lines as the event, the
+// event, and everything 'behind' it, is discarded. If the change is
+// before the event, the event's positions are updated. Uses a
+// copy-on-write scheme for the positions, to avoid having to
+// reallocate them all on every rebase, but also avoid problems with
+// shared position objects being unsafely updated.
+function rebaseHistArray(array, from, to, diff) {
+  for (let i = 0; i < array.length; ++i) {
+    let sub = array[i], ok = true
+    if (sub.ranges) {
+      if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true }
+      for (let j = 0; j < sub.ranges.length; j++) {
+        rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff)
+        rebaseHistSelSingle(sub.ranges[j].head, from, to, diff)
+      }
+      continue
+    }
+    for (let j = 0; j < sub.changes.length; ++j) {
+      let cur = sub.changes[j]
+      if (to < cur.from.line) {
+        cur.from = Pos(cur.from.line + diff, cur.from.ch)
+        cur.to = Pos(cur.to.line + diff, cur.to.ch)
+      } else if (from <= cur.to.line) {
+        ok = false
+        break
+      }
+    }
+    if (!ok) {
+      array.splice(0, i + 1)
+      i = 0
+    }
+  }
+}
+
+function rebaseHist(hist, change) {
+  let from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1
+  rebaseHistArray(hist.done, from, to, diff)
+  rebaseHistArray(hist.undone, from, to, diff)
+}
+
+// Utility for applying a change to a line by handle or number,
+// returning the number and optionally registering the line as
+// changed.
+export function changeLine(doc, handle, changeType, op) {
+  let no = handle, line = handle
+  if (typeof handle == "number") line = getLine(doc, clipLine(doc, handle))
+  else no = lineNo(handle)
+  if (no == null) return null
+  if (op(line, no) && doc.cm) regLineChange(doc.cm, no, changeType)
+  return line
+}
diff --git a/public/codemirror/src/model/chunk.js b/public/codemirror/src/model/chunk.js
new file mode 100644
index 000000000..3879da293
--- /dev/null
+++ b/public/codemirror/src/model/chunk.js
@@ -0,0 +1,167 @@
+import { cleanUpLine } from "../line/line_data"
+import { indexOf } from "../util/misc"
+import { signalLater } from "../util/operation_group"
+
+// The document is represented as a BTree consisting of leaves, with
+// chunk of lines in them, and branches, with up to ten leaves or
+// other branch nodes below them. The top node is always a branch
+// node, and is the document object itself (meaning it has
+// additional methods and properties).
+//
+// All nodes have parent links. The tree is used both to go from
+// line numbers to line objects, and to go from objects to numbers.
+// It also indexes by height, and is used to convert between height
+// and line object, and to find the total height of the document.
+//
+// See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html
+
+export class LeafChunk {
+  constructor(lines) {
+    this.lines = lines
+    this.parent = null
+    let height = 0
+    for (let i = 0; i < lines.length; ++i) {
+      lines[i].parent = this
+      height += lines[i].height
+    }
+    this.height = height
+  }
+
+  chunkSize() { return this.lines.length }
+
+  // Remove the n lines at offset 'at'.
+  removeInner(at, n) {
+    for (let i = at, e = at + n; i < e; ++i) {
+      let line = this.lines[i]
+      this.height -= line.height
+      cleanUpLine(line)
+      signalLater(line, "delete")
+    }
+    this.lines.splice(at, n)
+  }
+
+  // Helper used to collapse a small branch into a single leaf.
+  collapse(lines) {
+    lines.push.apply(lines, this.lines)
+  }
+
+  // Insert the given array of lines at offset 'at', count them as
+  // having the given height.
+  insertInner(at, lines, height) {
+    this.height += height
+    this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at))
+    for (let i = 0; i < lines.length; ++i) lines[i].parent = this
+  }
+
+  // Used to iterate over a part of the tree.
+  iterN(at, n, op) {
+    for (let e = at + n; at < e; ++at)
+      if (op(this.lines[at])) return true
+  }
+}
+
+export class BranchChunk {
+  constructor(children) {
+    this.children = children
+    let size = 0, height = 0
+    for (let i = 0; i < children.length; ++i) {
+      let ch = children[i]
+      size += ch.chunkSize(); height += ch.height
+      ch.parent = this
+    }
+    this.size = size
+    this.height = height
+    this.parent = null
+  }
+
+  chunkSize() { return this.size }
+
+  removeInner(at, n) {
+    this.size -= n
+    for (let i = 0; i < this.children.length; ++i) {
+      let child = this.children[i], sz = child.chunkSize()
+      if (at < sz) {
+        let rm = Math.min(n, sz - at), oldHeight = child.height
+        child.removeInner(at, rm)
+        this.height -= oldHeight - child.height
+        if (sz == rm) { this.children.splice(i--, 1); child.parent = null }
+        if ((n -= rm) == 0) break
+        at = 0
+      } else at -= sz
+    }
+    // If the result is smaller than 25 lines, ensure that it is a
+    // single leaf node.
+    if (this.size - n < 25 &&
+        (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) {
+      let lines = []
+      this.collapse(lines)
+      this.children = [new LeafChunk(lines)]
+      this.children[0].parent = this
+    }
+  }
+
+  collapse(lines) {
+    for (let i = 0; i < this.children.length; ++i) this.children[i].collapse(lines)
+  }
+
+  insertInner(at, lines, height) {
+    this.size += lines.length
+    this.height += height
+    for (let i = 0; i < this.children.length; ++i) {
+      let child = this.children[i], sz = child.chunkSize()
+      if (at <= sz) {
+        child.insertInner(at, lines, height)
+        if (child.lines && child.lines.length > 50) {
+          // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced.
+          // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest.
+          let remaining = child.lines.length % 25 + 25
+          for (let pos = remaining; pos < child.lines.length;) {
+            let leaf = new LeafChunk(child.lines.slice(pos, pos += 25))
+            child.height -= leaf.height
+            this.children.splice(++i, 0, leaf)
+            leaf.parent = this
+          }
+          child.lines = child.lines.slice(0, remaining)
+          this.maybeSpill()
+        }
+        break
+      }
+      at -= sz
+    }
+  }
+
+  // When a node has grown, check whether it should be split.
+  maybeSpill() {
+    if (this.children.length <= 10) return
+    let me = this
+    do {
+      let spilled = me.children.splice(me.children.length - 5, 5)
+      let sibling = new BranchChunk(spilled)
+      if (!me.parent) { // Become the parent node
+        let copy = new BranchChunk(me.children)
+        copy.parent = me
+        me.children = [copy, sibling]
+        me = copy
+     } else {
+        me.size -= sibling.size
+        me.height -= sibling.height
+        let myIndex = indexOf(me.parent.children, me)
+        me.parent.children.splice(myIndex + 1, 0, sibling)
+      }
+      sibling.parent = me.parent
+    } while (me.children.length > 10)
+    me.parent.maybeSpill()
+  }
+
+  iterN(at, n, op) {
+    for (let i = 0; i < this.children.length; ++i) {
+      let child = this.children[i], sz = child.chunkSize()
+      if (at < sz) {
+        let used = Math.min(n, sz - at)
+        if (child.iterN(at, used, op)) return true
+        if ((n -= used) == 0) break
+        at = 0
+      } else at -= sz
+    }
+  }
+}
diff --git a/public/codemirror/src/model/document_data.js b/public/codemirror/src/model/document_data.js
new file mode 100644
index 000000000..7f6e3367d
--- /dev/null
+++ b/public/codemirror/src/model/document_data.js
@@ -0,0 +1,111 @@
+import { loadMode } from "../display/mode_state"
+import { runInOp } from "../display/operations"
+import { regChange } from "../display/view_tracking"
+import { Line, updateLine } from "../line/line_data"
+import { findMaxLine } from "../line/spans"
+import { getLine } from "../line/utils_line"
+import { estimateLineHeights } from "../measurement/position_measurement"
+import { addClass, rmClass } from "../util/dom"
+import { lst } from "../util/misc"
+import { signalLater } from "../util/operation_group"
+
+// DOCUMENT DATA STRUCTURE
+
+// By default, updates that start and end at the beginning of a line
+// are treated specially, in order to make the association of line
+// widgets and marker elements with the text behave more intuitive.
+export function isWholeLineUpdate(doc, change) {
+  return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" &&
+    (!doc.cm || doc.cm.options.wholeLineUpdateBefore)
+}
+
+// Perform a change on the document data structure.
+export function updateDoc(doc, change, markedSpans, estimateHeight) {
+  function spansFor(n) {return markedSpans ? markedSpans[n] : null}
+  function update(line, text, spans) {
+    updateLine(line, text, spans, estimateHeight)
+    signalLater(line, "change", line, change)
+  }
+  function linesFor(start, end) {
+    let result = []
+    for (let i = start; i < end; ++i)
+      result.push(new Line(text[i], spansFor(i), estimateHeight))
+    return result
+  }
+
+  let from = change.from, to = change.to, text = change.text
+  let firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line)
+  let lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line
+
+  // Adjust the line structure
+  if (change.full) {
+    doc.insert(0, linesFor(0, text.length))
+    doc.remove(text.length, doc.size - text.length)
+  } else if (isWholeLineUpdate(doc, change)) {
+    // This is a whole-line replace. Treated specially to make
+    // sure line objects move the way they are supposed to.
+    let added = linesFor(0, text.length - 1)
+    update(lastLine, lastLine.text, lastSpans)
+    if (nlines) doc.remove(from.line, nlines)
+    if (added.length) doc.insert(from.line, added)
+  } else if (firstLine == lastLine) {
+    if (text.length == 1) {
+      update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans)
+    } else {
+      let added = linesFor(1, text.length - 1)
+      added.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight))
+      update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0))
+      doc.insert(from.line + 1, added)
+    }
+  } else if (text.length == 1) {
+    update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0))
+    doc.remove(from.line + 1, nlines)
+  } else {
+    update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0))
+    update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans)
+    let added = linesFor(1, text.length - 1)
+    if (nlines > 1) doc.remove(from.line + 1, nlines - 1)
+    doc.insert(from.line + 1, added)
+  }
+
+  signalLater(doc, "change", doc, change)
+}
+
+// Call f for all linked documents.
+export function linkedDocs(doc, f, sharedHistOnly) {
+  function propagate(doc, skip, sharedHist) {
+    if (doc.linked) for (let i = 0; i < doc.linked.length; ++i) {
+      let rel = doc.linked[i]
+      if (rel.doc == skip) continue
+      let shared = sharedHist && rel.sharedHist
+      if (sharedHistOnly && !shared) continue
+      f(rel.doc, shared)
+      propagate(rel.doc, doc, shared)
+    }
+  }
+  propagate(doc, null, true)
+}
+
+// Attach a document to an editor.
+export function attachDoc(cm, doc) {
+  if (doc.cm) throw new Error("This document is already in use.")
+  cm.doc = doc
+  doc.cm = cm
+  estimateLineHeights(cm)
+  loadMode(cm)
+  setDirectionClass(cm)
+  if (!cm.options.lineWrapping) findMaxLine(cm)
+  cm.options.mode = doc.modeOption
+  regChange(cm)
+}
+
+function setDirectionClass(cm) {
+  ;(cm.doc.direction == "rtl" ? addClass : rmClass)(cm.display.lineDiv, "CodeMirror-rtl")
+}
+
+export function directionChanged(cm) {
+  runInOp(cm, () => {
+    setDirectionClass(cm)
+    regChange(cm)
+  })
+}
diff --git a/public/codemirror/src/model/history.js b/public/codemirror/src/model/history.js
new file mode 100644
index 000000000..83938cf4c
--- /dev/null
+++ b/public/codemirror/src/model/history.js
@@ -0,0 +1,228 @@
+import { cmp, copyPos } from "../line/pos"
+import { stretchSpansOverChange } from "../line/spans"
+import { getBetween } from "../line/utils_line"
+import { signal } from "../util/event"
+import { indexOf, lst } from "../util/misc"
+
+import { changeEnd } from "./change_measurement"
+import { linkedDocs } from "./document_data"
+import { Selection } from "./selection"
+
+export function History(startGen) {
+  // Arrays of change events and selections. Doing something adds an
+  // event to done and clears undo. Undoing moves events from done
+  // to undone, redoing moves them in the other direction.
+  this.done = []; this.undone = []
+  this.undoDepth = Infinity
+  // Used to track when changes can be merged into a single undo
+  // event
+  this.lastModTime = this.lastSelTime = 0
+  this.lastOp = this.lastSelOp = null
+  this.lastOrigin = this.lastSelOrigin = null
+  // Used by the isClean() method
+  this.generation = this.maxGeneration = startGen || 1
+}
+
+// Create a history change event from an updateDoc-style change
+// object.
+export function historyChangeFromChange(doc, change) {
+  let histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)}
+  attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1)
+  linkedDocs(doc, doc => attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1), true)
+  return histChange
+}
+
+// Pop all selection events off the end of a history array. Stop at
+// a change event.
+function clearSelectionEvents(array) {
+  while (array.length) {
+    let last = lst(array)
+    if (last.ranges) array.pop()
+    else break
+  }
+}
+
+// Find the top change event in the history. Pop off selection
+// events that are in the way.
+function lastChangeEvent(hist, force) {
+  if (force) {
+    clearSelectionEvents(hist.done)
+    return lst(hist.done)
+  } else if (hist.done.length && !lst(hist.done).ranges) {
+    return lst(hist.done)
+  } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) {
+    hist.done.pop()
+    return lst(hist.done)
+  }
+}
+
+// Register a change in the history. Merges changes that are within
+// a single operation, or are close together with an origin that
+// allows merging (starting with "+") into a single event.
+export function addChangeToHistory(doc, change, selAfter, opId) {
+  let hist = doc.history
+  hist.undone.length = 0
+  let time = +new Date, cur
+  let last
+
+  if ((hist.lastOp == opId ||
+       hist.lastOrigin == change.origin && change.origin &&
+       ((change.origin.charAt(0) == "+" && doc.cm && hist.lastModTime > time - doc.cm.options.historyEventDelay) ||
+        change.origin.charAt(0) == "*")) &&
+      (cur = lastChangeEvent(hist, hist.lastOp == opId))) {
+    // Merge this change into the last event
+    last = lst(cur.changes)
+    if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) {
+      // Optimized case for simple insertion -- don't want to add
+      // new changesets for every character typed
+      last.to = changeEnd(change)
+    } else {
+      // Add new sub-event
+      cur.changes.push(historyChangeFromChange(doc, change))
+    }
+  } else {
+    // Can not be merged, start a new event.
+    let before = lst(hist.done)
+    if (!before || !before.ranges)
+      pushSelectionToHistory(doc.sel, hist.done)
+    cur = {changes: [historyChangeFromChange(doc, change)],
+           generation: hist.generation}
+    hist.done.push(cur)
+    while (hist.done.length > hist.undoDepth) {
+      hist.done.shift()
+      if (!hist.done[0].ranges) hist.done.shift()
+    }
+  }
+  hist.done.push(selAfter)
+  hist.generation = ++hist.maxGeneration
+  hist.lastModTime = hist.lastSelTime = time
+  hist.lastOp = hist.lastSelOp = opId
+  hist.lastOrigin = hist.lastSelOrigin = change.origin
+
+  if (!last) signal(doc, "historyAdded")
+}
+
+function selectionEventCanBeMerged(doc, origin, prev, sel) {
+  let ch = origin.charAt(0)
+  return ch == "*" ||
+    ch == "+" &&
+    prev.ranges.length == sel.ranges.length &&
+    prev.somethingSelected() == sel.somethingSelected() &&
+    new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500)
+}
+
+// Called whenever the selection changes, sets the new selection as
+// the pending selection in the history, and pushes the old pending
+// selection into the 'done' array when it was significantly
+// different (in number of selected ranges, emptiness, or time).
+export function addSelectionToHistory(doc, sel, opId, options) {
+  let hist = doc.history, origin = options && options.origin
+
+  // A new event is started when the previous origin does not match
+  // the current, or the origins don't allow matching. Origins
+  // starting with * are always merged, those starting with + are
+  // merged when similar and close together in time.
+  if (opId == hist.lastSelOp ||
+      (origin && hist.lastSelOrigin == origin &&
+       (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin ||
+        selectionEventCanBeMerged(doc, origin, lst(hist.done), sel))))
+    hist.done[hist.done.length - 1] = sel
+  else
+    pushSelectionToHistory(sel, hist.done)
+
+  hist.lastSelTime = +new Date
+  hist.lastSelOrigin = origin
+  hist.lastSelOp = opId
+  if (options && options.clearRedo !== false)
+    clearSelectionEvents(hist.undone)
+}
+
+export function pushSelectionToHistory(sel, dest) {
+  let top = lst(dest)
+  if (!(top && top.ranges && top.equals(sel)))
+    dest.push(sel)
+}
+
+// Used to store marked span information in the history.
+function attachLocalSpans(doc, change, from, to) {
+  let existing = change["spans_" + doc.id], n = 0
+  doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), line => {
+    if (line.markedSpans)
+      (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans
+    ++n
+  })
+}
+
+// When un/re-doing restores text containing marked spans, those
+// that have been explicitly cleared should not be restored.
+function removeClearedSpans(spans) {
+  if (!spans) return null
+  let out
+  for (let i = 0; i < spans.length; ++i) {
+    if (spans[i].marker.explicitlyCleared) { if (!out) out = spans.slice(0, i) }
+    else if (out) out.push(spans[i])
+  }
+  return !out ? spans : out.length ? out : null
+}
+
+// Retrieve and filter the old marked spans stored in a change event.
+function getOldSpans(doc, change) {
+  let found = change["spans_" + doc.id]
+  if (!found) return null
+  let nw = []
+  for (let i = 0; i < change.text.length; ++i)
+    nw.push(removeClearedSpans(found[i]))
+  return nw
+}
+
+// Used for un/re-doing changes from the history. Combines the
+// result of computing the existing spans with the set of spans that
+// existed in the history (so that deleting around a span and then
+// undoing brings back the span).
+export function mergeOldSpans(doc, change) {
+  let old = getOldSpans(doc, change)
+  let stretched = stretchSpansOverChange(doc, change)
+  if (!old) return stretched
+  if (!stretched) return old
+
+  for (let i = 0; i < old.length; ++i) {
+    let oldCur = old[i], stretchCur = stretched[i]
+    if (oldCur && stretchCur) {
+      spans: for (let j = 0; j < stretchCur.length; ++j) {
+        let span = stretchCur[j]
+        for (let k = 0; k < oldCur.length; ++k)
+          if (oldCur[k].marker == span.marker) continue spans
+        oldCur.push(span)
+      }
+    } else if (stretchCur) {
+      old[i] = stretchCur
+    }
+  }
+  return old
+}
+
+// Used both to provide a JSON-safe object in .getHistory, and, when
+// detaching a document, to split the history in two
+export function copyHistoryArray(events, newGroup, instantiateSel) {
+  let copy = []
+  for (let i = 0; i < events.length; ++i) {
+    let event = events[i]
+    if (event.ranges) {
+      copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event)
+      continue
+    }
+    let changes = event.changes, newChanges = []
+    copy.push({changes: newChanges})
+    for (let j = 0; j < changes.length; ++j) {
+      let change = changes[j], m
+      newChanges.push({from: change.from, to: change.to, text: change.text})
+      if (newGroup) for (var prop in change) if (m = prop.match(/^spans_(\d+)$/)) {
+        if (indexOf(newGroup, Number(m[1])) > -1) {
+          lst(newChanges)[prop] = change[prop]
+          delete change[prop]
+        }
+      }
+    }
+  }
+  return copy
+}
diff --git a/public/codemirror/src/model/line_widget.js b/public/codemirror/src/model/line_widget.js
new file mode 100644
index 000000000..8347066d3
--- /dev/null
+++ b/public/codemirror/src/model/line_widget.js
@@ -0,0 +1,78 @@
+import { runInOp } from "../display/operations"
+import { addToScrollPos } from "../display/scrolling"
+import { regLineChange } from "../display/view_tracking"
+import { heightAtLine, lineIsHidden } from "../line/spans"
+import { lineNo, updateLineHeight } from "../line/utils_line"
+import { widgetHeight } from "../measurement/widgets"
+import { changeLine } from "./changes"
+import { eventMixin } from "../util/event"
+import { signalLater } from "../util/operation_group"
+
+// Line widgets are block elements displayed above or below a line.
+
+export class LineWidget {
+  constructor(doc, node, options) {
+    if (options) for (let opt in options) if (options.hasOwnProperty(opt))
+      this[opt] = options[opt]
+    this.doc = doc
+    this.node = node
+  }
+
+  clear() {
+    let cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line)
+    if (no == null || !ws) return
+    for (let i = 0; i < ws.length; ++i) if (ws[i] == this) ws.splice(i--, 1)
+    if (!ws.length) line.widgets = null
+    let height = widgetHeight(this)
+    updateLineHeight(line, Math.max(0, line.height - height))
+    if (cm) {
+      runInOp(cm, () => {
+        adjustScrollWhenAboveVisible(cm, line, -height)
+        regLineChange(cm, no, "widget")
+      })
+      signalLater(cm, "lineWidgetCleared", cm, this, no)
+    }
+  }
+
+  changed() {
+    let oldH = this.height, cm = this.doc.cm, line = this.line
+    this.height = null
+    let diff = widgetHeight(this) - oldH
+    if (!diff) return
+    updateLineHeight(line, line.height + diff)
+    if (cm) {
+      runInOp(cm, () => {
+        cm.curOp.forceUpdate = true
+        adjustScrollWhenAboveVisible(cm, line, diff)
+        signalLater(cm, "lineWidgetChanged", cm, this, lineNo(line))
+      })
+    }
+  }
+}
+eventMixin(LineWidget)
+
+function adjustScrollWhenAboveVisible(cm, line, diff) {
+  if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop))
+    addToScrollPos(cm, null, diff)
+}
+
+export function addLineWidget(doc, handle, node, options) {
+  let widget = new LineWidget(doc, node, options)
+  let cm = doc.cm
+  if (cm && widget.noHScroll) cm.display.alignWidgets = true
+  changeLine(doc, handle, "widget", line => {
+    let widgets = line.widgets || (line.widgets = [])
+    if (widget.insertAt == null) widgets.push(widget)
+    else widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget)
+    widget.line = line
+    if (cm && !lineIsHidden(doc, line)) {
+      let aboveVisible = heightAtLine(line) < doc.scrollTop
+      updateLineHeight(line, line.height + widgetHeight(widget))
+      if (aboveVisible) addToScrollPos(cm, null, widget.height)
+      cm.curOp.forceUpdate = true
+    }
+    return true
+  })
+  signalLater(cm, "lineWidgetAdded", cm, widget, typeof handle == "number" ? handle : lineNo(handle))
+  return widget
+}
diff --git a/public/codemirror/src/model/mark_text.js b/public/codemirror/src/model/mark_text.js
new file mode 100644
index 000000000..ccdcc9d3b
--- /dev/null
+++ b/public/codemirror/src/model/mark_text.js
@@ -0,0 +1,292 @@
+import { eltP } from "../util/dom"
+import { eventMixin, hasHandler, on } from "../util/event"
+import { endOperation, operation, runInOp, startOperation } from "../display/operations"
+import { clipPos, cmp, Pos } from "../line/pos"
+import { lineNo, updateLineHeight } from "../line/utils_line"
+import { clearLineMeasurementCacheFor, findViewForLine, textHeight } from "../measurement/position_measurement"
+import { seeReadOnlySpans, seeCollapsedSpans } from "../line/saw_special_spans"
+import { addMarkedSpan, conflictingCollapsedRange, getMarkedSpanFor, lineIsHidden, lineLength, MarkedSpan, removeMarkedSpan, visualLine } from "../line/spans"
+import { copyObj, indexOf, lst } from "../util/misc"
+import { signalLater } from "../util/operation_group"
+import { widgetHeight } from "../measurement/widgets"
+import { regChange, regLineChange } from "../display/view_tracking"
+
+import { linkedDocs } from "./document_data"
+import { addChangeToHistory } from "./history"
+import { reCheckSelection } from "./selection_updates"
+
+// TEXTMARKERS
+
+// Created with markText and setBookmark methods. A TextMarker is a
+// handle that can be used to clear or find a marked position in the
+// document. Line objects hold arrays (markedSpans) containing
+// {from, to, marker} object pointing to such marker objects, and
+// indicating that such a marker is present on that line. Multiple
+// lines may point to the same marker when it spans across lines.
+// The spans will have null for their from/to properties when the
+// marker continues beyond the start/end of the line. Markers have
+// links back to the lines they currently touch.
+
+// Collapsed markers have unique ids, in order to be able to order
+// them, which is needed for uniquely determining an outer marker
+// when they overlap (they may nest, but not partially overlap).
+let nextMarkerId = 0
+
+export class TextMarker {
+  constructor(doc, type) {
+    this.lines = []
+    this.type = type
+    this.doc = doc
+    this.id = ++nextMarkerId
+  }
+
+  // Clear the marker.
+  clear() {
+    if (this.explicitlyCleared) return
+    let cm = this.doc.cm, withOp = cm && !cm.curOp
+    if (withOp) startOperation(cm)
+    if (hasHandler(this, "clear")) {
+      let found = this.find()
+      if (found) signalLater(this, "clear", found.from, found.to)
+    }
+    let min = null, max = null
+    for (let i = 0; i < this.lines.length; ++i) {
+      let line = this.lines[i]
+      let span = getMarkedSpanFor(line.markedSpans, this)
+      if (cm && !this.collapsed) regLineChange(cm, lineNo(line), "text")
+      else if (cm) {
+        if (span.to != null) max = lineNo(line)
+        if (span.from != null) min = lineNo(line)
+      }
+      line.markedSpans = removeMarkedSpan(line.markedSpans, span)
+      if (span.from == null && this.collapsed && !lineIsHidden(this.doc, line) && cm)
+        updateLineHeight(line, textHeight(cm.display))
+    }
+    if (cm && this.collapsed && !cm.options.lineWrapping) for (let i = 0; i < this.lines.length; ++i) {
+      let visual = visualLine(this.lines[i]), len = lineLength(visual)
+      if (len > cm.display.maxLineLength) {
+        cm.display.maxLine = visual
+        cm.display.maxLineLength = len
+        cm.display.maxLineChanged = true
+      }
+    }
+
+    if (min != null && cm && this.collapsed) regChange(cm, min, max + 1)
+    this.lines.length = 0
+    this.explicitlyCleared = true
+    if (this.atomic && this.doc.cantEdit) {
+      this.doc.cantEdit = false
+      if (cm) reCheckSelection(cm.doc)
+    }
+    if (cm) signalLater(cm, "markerCleared", cm, this, min, max)
+    if (withOp) endOperation(cm)
+    if (this.parent) this.parent.clear()
+  }
+
+  // Find the position of the marker in the document. Returns a {from,
+  // to} object by default. Side can be passed to get a specific side
+  // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the
+  // Pos objects returned contain a line object, rather than a line
+  // number (used to prevent looking up the same line twice).
+  find(side, lineObj) {
+    if (side == null && this.type == "bookmark") side = 1
+    let from, to
+    for (let i = 0; i < this.lines.length; ++i) {
+      let line = this.lines[i]
+      let span = getMarkedSpanFor(line.markedSpans, this)
+      if (span.from != null) {
+        from = Pos(lineObj ? line : lineNo(line), span.from)
+        if (side == -1) return from
+      }
+      if (span.to != null) {
+        to = Pos(lineObj ? line : lineNo(line), span.to)
+        if (side == 1) return to
+      }
+    }
+    return from && {from: from, to: to}
+  }
+
+  // Signals that the marker's widget changed, and surrounding layout
+  // should be recomputed.
+  changed() {
+    let pos = this.find(-1, true), widget = this, cm = this.doc.cm
+    if (!pos || !cm) return
+    runInOp(cm, () => {
+      let line = pos.line, lineN = lineNo(pos.line)
+      let view = findViewForLine(cm, lineN)
+      if (view) {
+        clearLineMeasurementCacheFor(view)
+        cm.curOp.selectionChanged = cm.curOp.forceUpdate = true
+      }
+      cm.curOp.updateMaxLine = true
+      if (!lineIsHidden(widget.doc, line) && widget.height != null) {
+        let oldHeight = widget.height
+        widget.height = null
+        let dHeight = widgetHeight(widget) - oldHeight
+        if (dHeight)
+          updateLineHeight(line, line.height + dHeight)
+      }
+      signalLater(cm, "markerChanged", cm, this)
+    })
+  }
+
+  attachLine(line) {
+    if (!this.lines.length && this.doc.cm) {
+      let op = this.doc.cm.curOp
+      if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1)
+        (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this)
+    }
+    this.lines.push(line)
+  }
+
+  detachLine(line) {
+    this.lines.splice(indexOf(this.lines, line), 1)
+    if (!this.lines.length && this.doc.cm) {
+      let op = this.doc.cm.curOp
+      ;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this)
+    }
+  }
+}
+eventMixin(TextMarker)
+
+// Create a marker, wire it up to the right lines, and
+export function markText(doc, from, to, options, type) {
+  // Shared markers (across linked documents) are handled separately
+  // (markTextShared will call out to this again, once per
+  // document).
+  if (options && options.shared) return markTextShared(doc, from, to, options, type)
+  // Ensure we are in an operation.
+  if (doc.cm && !doc.cm.curOp) return operation(doc.cm, markText)(doc, from, to, options, type)
+
+  let marker = new TextMarker(doc, type), diff = cmp(from, to)
+  if (options) copyObj(options, marker, false)
+  // Don't connect empty markers unless clearWhenEmpty is false
+  if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false)
+    return marker
+  if (marker.replacedWith) {
+    // Showing up as a widget implies collapsed (widget replaces text)
+    marker.collapsed = true
+    marker.widgetNode = eltP("span", [marker.replacedWith], "CodeMirror-widget")
+    if (!options.handleMouseEvents) marker.widgetNode.setAttribute("cm-ignore-events", "true")
+    if (options.insertLeft) marker.widgetNode.insertLeft = true
+  }
+  if (marker.collapsed) {
+    if (conflictingCollapsedRange(doc, from.line, from, to, marker) ||
+        from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker))
+      throw new Error("Inserting collapsed marker partially overlapping an existing one")
+    seeCollapsedSpans()
+  }
+
+  if (marker.addToHistory)
+    addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN)
+
+  let curLine = from.line, cm = doc.cm, updateMaxLine
+  doc.iter(curLine, to.line + 1, line => {
+    if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine)
+      updateMaxLine = true
+    if (marker.collapsed && curLine != from.line) updateLineHeight(line, 0)
+    addMarkedSpan(line, new MarkedSpan(marker,
+                                       curLine == from.line ? from.ch : null,
+                                       curLine == to.line ? to.ch : null))
+    ++curLine
+  })
+  // lineIsHidden depends on the presence of the spans, so needs a second pass
+  if (marker.collapsed) doc.iter(from.line, to.line + 1, line => {
+    if (lineIsHidden(doc, line)) updateLineHeight(line, 0)
+  })
+
+  if (marker.clearOnEnter) on(marker, "beforeCursorEnter", () => marker.clear())
+
+  if (marker.readOnly) {
+    seeReadOnlySpans()
+    if (doc.history.done.length || doc.history.undone.length)
+      doc.clearHistory()
+  }
+  if (marker.collapsed) {
+    marker.id = ++nextMarkerId
+    marker.atomic = true
+  }
+  if (cm) {
+    // Sync editor state
+    if (updateMaxLine) cm.curOp.updateMaxLine = true
+    if (marker.collapsed)
+      regChange(cm, from.line, to.line + 1)
+    else if (marker.className || marker.title || marker.startStyle || marker.endStyle || marker.css)
+      for (let i = from.line; i <= to.line; i++) regLineChange(cm, i, "text")
+    if (marker.atomic) reCheckSelection(cm.doc)
+    signalLater(cm, "markerAdded", cm, marker)
+  }
+  return marker
+}
+
+// SHARED TEXTMARKERS
+
+// A shared marker spans multiple linked documents. It is
+// implemented as a meta-marker-object controlling multiple normal
+// markers.
+export class SharedTextMarker {
+  constructor(markers, primary) {
+    this.markers = markers
+    this.primary = primary
+    for (let i = 0; i < markers.length; ++i)
+      markers[i].parent = this
+  }
+
+  clear() {
+    if (this.explicitlyCleared) return
+    this.explicitlyCleared = true
+    for (let i = 0; i < this.markers.length; ++i)
+      this.markers[i].clear()
+    signalLater(this, "clear")
+  }
+
+  find(side, lineObj) {
+    return this.primary.find(side, lineObj)
+  }
+}
+eventMixin(SharedTextMarker)
+
+function markTextShared(doc, from, to, options, type) {
+  options = copyObj(options)
+  options.shared = false
+  let markers = [markText(doc, from, to, options, type)], primary = markers[0]
+  let widget = options.widgetNode
+  linkedDocs(doc, doc => {
+    if (widget) options.widgetNode = widget.cloneNode(true)
+    markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type))
+    for (let i = 0; i < doc.linked.length; ++i)
+      if (doc.linked[i].isParent) return
+    primary = lst(markers)
+  })
+  return new SharedTextMarker(markers, primary)
+}
+
+export function findSharedMarkers(doc) {
+  return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), m => m.parent)
+}
+
+export function copySharedMarkers(doc, markers) {
+  for (let i = 0; i < markers.length; i++) {
+    let marker = markers[i], pos = marker.find()
+    let mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to)
+    if (cmp(mFrom, mTo)) {
+      let subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type)
+      marker.markers.push(subMark)
+      subMark.parent = marker
+    }
+  }
+}
+
+export function detachSharedMarkers(markers) {
+  for (let i = 0; i < markers.length; i++) {
+    let marker = markers[i], linked = [marker.primary.doc]
+    linkedDocs(marker.primary.doc, d => linked.push(d))
+    for (let j = 0; j < marker.markers.length; j++) {
+      let subMarker = marker.markers[j]
+      if (indexOf(linked, subMarker.doc) == -1) {
+        subMarker.parent = null
+        marker.markers.splice(j--, 1)
+      }
+    }
+  }
+}
diff --git a/public/codemirror/src/model/selection.js b/public/codemirror/src/model/selection.js
new file mode 100644
index 000000000..97084fbc1
--- /dev/null
+++ b/public/codemirror/src/model/selection.js
@@ -0,0 +1,82 @@
+import { cmp, copyPos, equalCursorPos, maxPos, minPos } from "../line/pos"
+import { indexOf } from "../util/misc"
+
+// Selection objects are immutable. A new one is created every time
+// the selection changes. A selection is one or more non-overlapping
+// (and non-touching) ranges, sorted, and an integer that indicates
+// which one is the primary selection (the one that's scrolled into
+// view, that getCursor returns, etc).
+export class Selection {
+  constructor(ranges, primIndex) {
+    this.ranges = ranges
+    this.primIndex = primIndex
+  }
+
+  primary() { return this.ranges[this.primIndex] }
+
+  equals(other) {
+    if (other == this) return true
+    if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) return false
+    for (let i = 0; i < this.ranges.length; i++) {
+      let here = this.ranges[i], there = other.ranges[i]
+      if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) return false
+    }
+    return true
+  }
+
+  deepCopy() {
+    let out = []
+    for (let i = 0; i < this.ranges.length; i++)
+      out[i] = new Range(copyPos(this.ranges[i].anchor), copyPos(this.ranges[i].head))
+    return new Selection(out, this.primIndex)
+  }
+
+  somethingSelected() {
+    for (let i = 0; i < this.ranges.length; i++)
+      if (!this.ranges[i].empty()) return true
+    return false
+  }
+
+  contains(pos, end) {
+    if (!end) end = pos
+    for (let i = 0; i < this.ranges.length; i++) {
+      let range = this.ranges[i]
+      if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0)
+        return i
+    }
+    return -1
+  }
+}
+
+export class Range {
+  constructor(anchor, head) {
+    this.anchor = anchor; this.head = head
+  }
+
+  from() { return minPos(this.anchor, this.head) }
+  to() { return maxPos(this.anchor, this.head) }
+  empty() { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch }
+}
+
+// Take an unsorted, potentially overlapping set of ranges, and
+// build a selection out of it. 'Consumes' ranges array (modifying
+// it).
+export function normalizeSelection(ranges, primIndex) {
+  let prim = ranges[primIndex]
+  ranges.sort((a, b) => cmp(a.from(), b.from()))
+  primIndex = indexOf(ranges, prim)
+  for (let i = 1; i < ranges.length; i++) {
+    let cur = ranges[i], prev = ranges[i - 1]
+    if (cmp(prev.to(), cur.from()) >= 0) {
+      let from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to())
+      let inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head
+      if (i <= primIndex) --primIndex
+      ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to))
+    }
+  }
+  return new Selection(ranges, primIndex)
+}
+
+export function simpleSelection(anchor, head) {
+  return new Selection([new Range(anchor, head || anchor)], 0)
+}
diff --git a/public/codemirror/src/model/selection_updates.js b/public/codemirror/src/model/selection_updates.js
new file mode 100644
index 000000000..0e310a5d2
--- /dev/null
+++ b/public/codemirror/src/model/selection_updates.js
@@ -0,0 +1,206 @@
+import { signalLater } from "../util/operation_group"
+import { ensureCursorVisible } from "../display/scrolling"
+import { clipPos, cmp, Pos } from "../line/pos"
+import { getLine } from "../line/utils_line"
+import { hasHandler, signal, signalCursorActivity } from "../util/event"
+import { lst, sel_dontScroll } from "../util/misc"
+
+import { addSelectionToHistory } from "./history"
+import { normalizeSelection, Range, Selection, simpleSelection } from "./selection"
+
+// The 'scroll' parameter given to many of these indicated whether
+// the new cursor position should be scrolled into view after
+// modifying the selection.
+
+// If shift is held or the extend flag is set, extends a range to
+// include a given position (and optionally a second position).
+// Otherwise, simply returns the range between the given positions.
+// Used for cursor motion and such.
+export function extendRange(doc, range, head, other) {
+  if (doc.cm && doc.cm.display.shift || doc.extend) {
+    let anchor = range.anchor
+    if (other) {
+      let posBefore = cmp(head, anchor) < 0
+      if (posBefore != (cmp(other, anchor) < 0)) {
+        anchor = head
+        head = other
+      } else if (posBefore != (cmp(head, other) < 0)) {
+        head = other
+      }
+    }
+    return new Range(anchor, head)
+  } else {
+    return new Range(other || head, head)
+  }
+}
+
+// Extend the primary selection range, discard the rest.
+export function extendSelection(doc, head, other, options) {
+  setSelection(doc, new Selection([extendRange(doc, doc.sel.primary(), head, other)], 0), options)
+}
+
+// Extend all selections (pos is an array of selections with length
+// equal the number of selections)
+export function extendSelections(doc, heads, options) {
+  let out = []
+  for (let i = 0; i < doc.sel.ranges.length; i++)
+    out[i] = extendRange(doc, doc.sel.ranges[i], heads[i], null)
+  let newSel = normalizeSelection(out, doc.sel.primIndex)
+  setSelection(doc, newSel, options)
+}
+
+// Updates a single range in the selection.
+export function replaceOneSelection(doc, i, range, options) {
+  let ranges = doc.sel.ranges.slice(0)
+  ranges[i] = range
+  setSelection(doc, normalizeSelection(ranges, doc.sel.primIndex), options)
+}
+
+// Reset the selection to a single range.
+export function setSimpleSelection(doc, anchor, head, options) {
+  setSelection(doc, simpleSelection(anchor, head), options)
+}
+
+// Give beforeSelectionChange handlers a change to influence a
+// selection update.
+function filterSelectionChange(doc, sel, options) {
+  let obj = {
+    ranges: sel.ranges,
+    update: function(ranges) {
+      this.ranges = []
+      for (let i = 0; i < ranges.length; i++)
+        this.ranges[i] = new Range(clipPos(doc, ranges[i].anchor),
+                                   clipPos(doc, ranges[i].head))
+    },
+    origin: options && options.origin
+  }
+  signal(doc, "beforeSelectionChange", doc, obj)
+  if (doc.cm) signal(doc.cm, "beforeSelectionChange", doc.cm, obj)
+  if (obj.ranges != sel.ranges) return normalizeSelection(obj.ranges, obj.ranges.length - 1)
+  else return sel
+}
+
+export function setSelectionReplaceHistory(doc, sel, options) {
+  let done = doc.history.done, last = lst(done)
+  if (last && last.ranges) {
+    done[done.length - 1] = sel
+    setSelectionNoUndo(doc, sel, options)
+  } else {
+    setSelection(doc, sel, options)
+  }
+}
+
+// Set a new selection.
+export function setSelection(doc, sel, options) {
+  setSelectionNoUndo(doc, sel, options)
+  addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options)
+}
+
+export function setSelectionNoUndo(doc, sel, options) {
+  if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange"))
+    sel = filterSelectionChange(doc, sel, options)
+
+  let bias = options && options.bias ||
+    (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1)
+  setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true))
+
+  if (!(options && options.scroll === false) && doc.cm)
+    ensureCursorVisible(doc.cm)
+}
+
+function setSelectionInner(doc, sel) {
+  if (sel.equals(doc.sel)) return
+
+  doc.sel = sel
+
+  if (doc.cm) {
+    doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true
+    signalCursorActivity(doc.cm)
+  }
+  signalLater(doc, "cursorActivity", doc)
+}
+
+// Verify that the selection does not partially select any atomic
+// marked ranges.
+export function reCheckSelection(doc) {
+  setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false), sel_dontScroll)
+}
+
+// Return a selection that does not partially select any atomic
+// ranges.
+function skipAtomicInSelection(doc, sel, bias, mayClear) {
+  let out
+  for (let i = 0; i < sel.ranges.length; i++) {
+    let range = sel.ranges[i]
+    let old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i]
+    let newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear)
+    let newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear)
+    if (out || newAnchor != range.anchor || newHead != range.head) {
+      if (!out) out = sel.ranges.slice(0, i)
+      out[i] = new Range(newAnchor, newHead)
+    }
+  }
+  return out ? normalizeSelection(out, sel.primIndex) : sel
+}
+
+function skipAtomicInner(doc, pos, oldPos, dir, mayClear) {
+  let line = getLine(doc, pos.line)
+  if (line.markedSpans) for (let i = 0; i < line.markedSpans.length; ++i) {
+    let sp = line.markedSpans[i], m = sp.marker
+    if ((sp.from == null || (m.inclusiveLeft ? sp.from <= pos.ch : sp.from < pos.ch)) &&
+        (sp.to == null || (m.inclusiveRight ? sp.to >= pos.ch : sp.to > pos.ch))) {
+      if (mayClear) {
+        signal(m, "beforeCursorEnter")
+        if (m.explicitlyCleared) {
+          if (!line.markedSpans) break
+          else {--i; continue}
+        }
+      }
+      if (!m.atomic) continue
+
+      if (oldPos) {
+        let near = m.find(dir < 0 ? 1 : -1), diff
+        if (dir < 0 ? m.inclusiveRight : m.inclusiveLeft)
+          near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null)
+        if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0))
+          return skipAtomicInner(doc, near, pos, dir, mayClear)
+      }
+
+      let far = m.find(dir < 0 ? -1 : 1)
+      if (dir < 0 ? m.inclusiveLeft : m.inclusiveRight)
+        far = movePos(doc, far, dir, far.line == pos.line ? line : null)
+      return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null
+    }
+  }
+  return pos
+}
+
+// Ensure a given position is not inside an atomic range.
+export function skipAtomic(doc, pos, oldPos, bias, mayClear) {
+  let dir = bias || 1
+  let found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) ||
+      (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) ||
+      skipAtomicInner(doc, pos, oldPos, -dir, mayClear) ||
+      (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true))
+  if (!found) {
+    doc.cantEdit = true
+    return Pos(doc.first, 0)
+  }
+  return found
+}
+
+function movePos(doc, pos, dir, line) {
+  if (dir < 0 && pos.ch == 0) {
+    if (pos.line > doc.first) return clipPos(doc, Pos(pos.line - 1))
+    else return null
+  } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) {
+    if (pos.line < doc.first + doc.size - 1) return Pos(pos.line + 1, 0)
+    else return null
+  } else {
+    return new Pos(pos.line, pos.ch + dir)
+  }
+}
+
+export function selectAll(cm) {
+  cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll)
+}
diff --git a/public/codemirror/src/modes.js b/public/codemirror/src/modes.js
new file mode 100644
index 000000000..065a463b5
--- /dev/null
+++ b/public/codemirror/src/modes.js
@@ -0,0 +1,96 @@
+import { copyObj, createObj } from "./util/misc"
+
+// Known modes, by name and by MIME
+export let modes = {}, mimeModes = {}
+
+// Extra arguments are stored as the mode's dependencies, which is
+// used by (legacy) mechanisms like loadmode.js to automatically
+// load a mode. (Preferred mechanism is the require/define calls.)
+export function defineMode(name, mode) {
+  if (arguments.length > 2)
+    mode.dependencies = Array.prototype.slice.call(arguments, 2)
+  modes[name] = mode
+}
+
+export function defineMIME(mime, spec) {
+  mimeModes[mime] = spec
+}
+
+// Given a MIME type, a {name, ...options} config object, or a name
+// string, return a mode config object.
+export function resolveMode(spec) {
+  if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) {
+    spec = mimeModes[spec]
+  } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) {
+    let found = mimeModes[spec.name]
+    if (typeof found == "string") found = {name: found}
+    spec = createObj(found, spec)
+    spec.name = found.name
+  } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) {
+    return resolveMode("application/xml")
+  } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) {
+    return resolveMode("application/json")
+  }
+  if (typeof spec == "string") return {name: spec}
+  else return spec || {name: "null"}
+}
+
+// Given a mode spec (anything that resolveMode accepts), find and
+// initialize an actual mode object.
+export function getMode(options, spec) {
+  spec = resolveMode(spec)
+  let mfactory = modes[spec.name]
+  if (!mfactory) return getMode(options, "text/plain")
+  let modeObj = mfactory(options, spec)
+  if (modeExtensions.hasOwnProperty(spec.name)) {
+    let exts = modeExtensions[spec.name]
+    for (let prop in exts) {
+      if (!exts.hasOwnProperty(prop)) continue
+      if (modeObj.hasOwnProperty(prop)) modeObj["_" + prop] = modeObj[prop]
+      modeObj[prop] = exts[prop]
+    }
+  }
+  modeObj.name = spec.name
+  if (spec.helperType) modeObj.helperType = spec.helperType
+  if (spec.modeProps) for (let prop in spec.modeProps)
+    modeObj[prop] = spec.modeProps[prop]
+
+  return modeObj
+}
+
+// This can be used to attach properties to mode objects from
+// outside the actual mode definition.
+export let modeExtensions = {}
+export function extendMode(mode, properties) {
+  let exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {})
+  copyObj(properties, exts)
+}
+
+export function copyState(mode, state) {
+  if (state === true) return state
+  if (mode.copyState) return mode.copyState(state)
+  let nstate = {}
+  for (let n in state) {
+    let val = state[n]
+    if (val instanceof Array) val = val.concat([])
+    nstate[n] = val
+  }
+  return nstate
+}
+
+// Given a mode and a state (for that mode), find the inner mode and
+// state at the position that the state refers to.
+export function innerMode(mode, state) {
+  let info
+  while (mode.innerMode) {
+    info = mode.innerMode(state)
+    if (!info || info.mode == mode) break
+    state = info.state
+    mode = info.mode
+  }
+  return info || {mode: mode, state: state}
+}
+
+export function startState(mode, a1, a2) {
+  return mode.startState ? mode.startState(a1, a2) : true
+}
diff --git a/public/codemirror/src/util/StringStream.js b/public/codemirror/src/util/StringStream.js
new file mode 100644
index 000000000..0f7af07ca
--- /dev/null
+++ b/public/codemirror/src/util/StringStream.js
@@ -0,0 +1,81 @@
+import { countColumn } from "./misc"
+
+// STRING STREAM
+
+// Fed to the mode parsers, provides helper functions to make
+// parsers more succinct.
+
+class StringStream {
+  constructor(string, tabSize) {
+    this.pos = this.start = 0
+    this.string = string
+    this.tabSize = tabSize || 8
+    this.lastColumnPos = this.lastColumnValue = 0
+    this.lineStart = 0
+  }
+
+  eol() {return this.pos >= this.string.length}
+  sol() {return this.pos == this.lineStart}
+  peek() {return this.string.charAt(this.pos) || undefined}
+  next() {
+    if (this.pos < this.string.length)
+      return this.string.charAt(this.pos++)
+  }
+  eat(match) {
+    let ch = this.string.charAt(this.pos)
+    let ok
+    if (typeof match == "string") ok = ch == match
+    else ok = ch && (match.test ? match.test(ch) : match(ch))
+    if (ok) {++this.pos; return ch}
+  }
+  eatWhile(match) {
+    let start = this.pos
+    while (this.eat(match)){}
+    return this.pos > start
+  }
+  eatSpace() {
+    let start = this.pos
+    while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) ++this.pos
+    return this.pos > start
+  }
+  skipToEnd() {this.pos = this.string.length}
+  skipTo(ch) {
+    let found = this.string.indexOf(ch, this.pos)
+    if (found > -1) {this.pos = found; return true}
+  }
+  backUp(n) {this.pos -= n}
+  column() {
+    if (this.lastColumnPos < this.start) {
+      this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue)
+      this.lastColumnPos = this.start
+    }
+    return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
+  }
+  indentation() {
+    return countColumn(this.string, null, this.tabSize) -
+      (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0)
+  }
+  match(pattern, consume, caseInsensitive) {
+    if (typeof pattern == "string") {
+      let cased = str => caseInsensitive ? str.toLowerCase() : str
+      let substr = this.string.substr(this.pos, pattern.length)
+      if (cased(substr) == cased(pattern)) {
+        if (consume !== false) this.pos += pattern.length
+        return true
+      }
+    } else {
+      let match = this.string.slice(this.pos).match(pattern)
+      if (match && match.index > 0) return null
+      if (match && consume !== false) this.pos += match[0].length
+      return match
+    }
+  }
+  current(){return this.string.slice(this.start, this.pos)}
+  hideFirstChars(n, inner) {
+    this.lineStart += n
+    try { return inner() }
+    finally { this.lineStart -= n }
+  }
+}
+
+export default StringStream
diff --git a/public/codemirror/src/util/bidi.js b/public/codemirror/src/util/bidi.js
new file mode 100644
index 000000000..e7429fce0
--- /dev/null
+++ b/public/codemirror/src/util/bidi.js
@@ -0,0 +1,212 @@
+import { lst } from "./misc"
+
+// BIDI HELPERS
+
+export function iterateBidiSections(order, from, to, f) {
+  if (!order) return f(from, to, "ltr")
+  let found = false
+  for (let i = 0; i < order.length; ++i) {
+    let part = order[i]
+    if (part.from < to && part.to > from || from == to && part.to == from) {
+      f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr")
+      found = true
+    }
+  }
+  if (!found) f(from, to, "ltr")
+}
+
+export let bidiOther = null
+export function getBidiPartAt(order, ch, sticky) {
+  let found
+  bidiOther = null
+  for (let i = 0; i < order.length; ++i) {
+    let cur = order[i]
+    if (cur.from < ch && cur.to > ch) return i
+    if (cur.to == ch) {
+      if (cur.from != cur.to && sticky == "before") found = i
+      else bidiOther = i
+    }
+    if (cur.from == ch) {
+      if (cur.from != cur.to && sticky != "before") found = i
+      else bidiOther = i
+    }
+  }
+  return found != null ? found : bidiOther
+}
+
+// Bidirectional ordering algorithm
+// See http://unicode.org/reports/tr9/tr9-13.html for the algorithm
+// that this (partially) implements.
+
+// One-char codes used for character types:
+// L (L):   Left-to-Right
+// R (R):   Right-to-Left
+// r (AL):  Right-to-Left Arabic
+// 1 (EN):  European Number
+// + (ES):  European Number Separator
+// % (ET):  European Number Terminator
+// n (AN):  Arabic Number
+// , (CS):  Common Number Separator
+// m (NSM): Non-Spacing Mark
+// b (BN):  Boundary Neutral
+// s (B):   Paragraph Separator
+// t (S):   Segment Separator
+// w (WS):  Whitespace
+// N (ON):  Other Neutrals
+
+// Returns null if characters are ordered as they appear
+// (left-to-right), or an array of sections ({from, to, level}
+// objects) in the order in which they occur visually.
+let bidiOrdering = (function() {
+  // Character types for codepoints 0 to 0xff
+  let lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN"
+  // Character types for codepoints 0x600 to 0x6f9
+  let arabicTypes = "nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111"
+  function charType(code) {
+    if (code <= 0xf7) return lowTypes.charAt(code)
+    else if (0x590 <= code && code <= 0x5f4) return "R"
+    else if (0x600 <= code && code <= 0x6f9) return arabicTypes.charAt(code - 0x600)
+    else if (0x6ee <= code && code <= 0x8ac) return "r"
+    else if (0x2000 <= code && code <= 0x200b) return "w"
+    else if (code == 0x200c) return "b"
+    else return "L"
+  }
+
+  let bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/
+  let isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/
+
+  function BidiSpan(level, from, to) {
+    this.level = level
+    this.from = from; this.to = to
+  }
+
+  return function(str, direction) {
+    let outerType = direction == "ltr" ? "L" : "R"
+
+    if (str.length == 0 || direction == "ltr" && !bidiRE.test(str)) return false
+    let len = str.length, types = []
+    for (let i = 0; i < len; ++i)
+      types.push(charType(str.charCodeAt(i)))
+
+    // W1. Examine each non-spacing mark (NSM) in the level run, and
+    // change the type of the NSM to the type of the previous
+    // character. If the NSM is at the start of the level run, it will
+    // get the type of sor.
+    for (let i = 0, prev = outerType; i < len; ++i) {
+      let type = types[i]
+      if (type == "m") types[i] = prev
+      else prev = type
+    }
+
+    // W2. Search backwards from each instance of a European number
+    // until the first strong type (R, L, AL, or sor) is found. If an
+    // AL is found, change the type of the European number to Arabic
+    // number.
+    // W3. Change all ALs to R.
+    for (let i = 0, cur = outerType; i < len; ++i) {
+      let type = types[i]
+      if (type == "1" && cur == "r") types[i] = "n"
+      else if (isStrong.test(type)) { cur = type; if (type == "r") types[i] = "R" }
+    }
+
+    // W4. A single European separator between two European numbers
+    // changes to a European number. A single common separator between
+    // two numbers of the same type changes to that type.
+    for (let i = 1, prev = types[0]; i < len - 1; ++i) {
+      let type = types[i]
+      if (type == "+" && prev == "1" && types[i+1] == "1") types[i] = "1"
+      else if (type == "," && prev == types[i+1] &&
+               (prev == "1" || prev == "n")) types[i] = prev
+      prev = type
+    }
+
+    // W5. A sequence of European terminators adjacent to European
+    // numbers changes to all European numbers.
+    // W6. Otherwise, separators and terminators change to Other
+    // Neutral.
+    for (let i = 0; i < len; ++i) {
+      let type = types[i]
+      if (type == ",") types[i] = "N"
+      else if (type == "%") {
+        let end
+        for (end = i + 1; end < len && types[end] == "%"; ++end) {}
+        let replace = (i && types[i-1] == "!") || (end < len && types[end] == "1") ? "1" : "N"
+        for (let j = i; j < end; ++j) types[j] = replace
+        i = end - 1
+      }
+    }
+
+    // W7. Search backwards from each instance of a European number
+    // until the first strong type (R, L, or sor) is found. If an L is
+    // found, then change the type of the European number to L.
+    for (let i = 0, cur = outerType; i < len; ++i) {
+      let type = types[i]
+      if (cur == "L" && type == "1") types[i] = "L"
+      else if (isStrong.test(type)) cur = type
+    }
+
+    // N1. A sequence of neutrals takes the direction of the
+    // surrounding strong text if the text on both sides has the same
+    // direction. European and Arabic numbers act as if they were R in
+    // terms of their influence on neutrals. Start-of-level-run (sor)
+    // and end-of-level-run (eor) are used at level run boundaries.
+    // N2. Any remaining neutrals take the embedding direction.
+    for (let i = 0; i < len; ++i) {
+      if (isNeutral.test(types[i])) {
+        let end
+        for (end = i + 1; end < len && isNeutral.test(types[end]); ++end) {}
+        let before = (i ? types[i-1] : outerType) == "L"
+        let after = (end < len ? types[end] : outerType) == "L"
+        let replace = before == after ? (before ? "L" : "R") : outerType
+        for (let j = i; j < end; ++j) types[j] = replace
+        i = end - 1
+      }
+    }
+
+    // Here we depart from the documented algorithm, in order to avoid
+    // building up an actual levels array. Since there are only three
+    // levels (0, 1, 2) in an implementation that doesn't take
+    // explicit embedding into account, we can build up the order on
+    // the fly, without following the level-based algorithm.
+    let order = [], m
+    for (let i = 0; i < len;) {
+      if (countsAsLeft.test(types[i])) {
+        let start = i
+        for (++i; i < len && countsAsLeft.test(types[i]); ++i) {}
+        order.push(new BidiSpan(0, start, i))
+      } else {
+        let pos = i, at = order.length
+        for (++i; i < len && types[i] != "L"; ++i) {}
+        for (let j = pos; j < i;) {
+          if (countsAsNum.test(types[j])) {
+            if (pos < j) order.splice(at, 0, new BidiSpan(1, pos, j))
+            let nstart = j
+            for (++j; j < i && countsAsNum.test(types[j]); ++j) {}
+            order.splice(at, 0, new BidiSpan(2, nstart, j))
+            pos = j
+          } else ++j
+        }
+        if (pos < i) order.splice(at, 0, new BidiSpan(1, pos, i))
+      }
+    }
+    if (order[0].level == 1 && (m = str.match(/^\s+/))) {
+      order[0].from = m[0].length
+      order.unshift(new BidiSpan(0, 0, m[0].length))
+    }
+    if (lst(order).level == 1 && (m = str.match(/\s+$/))) {
+      lst(order).to -= m[0].length
+      order.push(new BidiSpan(0, len - m[0].length, len))
+    }
+
+    return direction == "rtl" ? order.reverse() : order
+  }
+})()
+
+// Get the bidi ordering for the given line (and cache it). Returns
+// false for lines that are fully left-to-right, and an array of
+// BidiSpan objects otherwise.
+export function getOrder(line, direction) {
+  let order = line.order
+  if (order == null) order = line.order = bidiOrdering(line.text, direction)
+  return order
+}
diff --git a/public/codemirror/src/util/browser.js b/public/codemirror/src/util/browser.js
new file mode 100644
index 000000000..9fc4602c6
--- /dev/null
+++ b/public/codemirror/src/util/browser.js
@@ -0,0 +1,33 @@
+// Kludges for bugs and behavior differences that can't be feature
+// detected are enabled based on userAgent etc sniffing.
+let userAgent = navigator.userAgent
+let platform = navigator.platform
+
+export let gecko = /gecko\/\d/i.test(userAgent)
+let ie_upto10 = /MSIE \d/.test(userAgent)
+let ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent)
+let edge = /Edge\/(\d+)/.exec(userAgent)
+export let ie = ie_upto10 || ie_11up || edge
+export let ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1])
+export let webkit = !edge && /WebKit\//.test(userAgent)
+let qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent)
+export let chrome = !edge && /Chrome\//.test(userAgent)
+export let presto = /Opera\//.test(userAgent)
+export let safari = /Apple Computer/.test(navigator.vendor)
+export let mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent)
+export let phantom = /PhantomJS/.test(userAgent)
+
+export let ios = !edge && /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent)
+export let android = /Android/.test(userAgent)
+// This is woefully incomplete. Suggestions for alternative methods welcome.
+export let mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent)
+export let mac = ios || /Mac/.test(platform)
+export let chromeOS = /\bCrOS\b/.test(userAgent)
+export let windows = /win/i.test(platform)
+
+let presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/)
+if (presto_version) presto_version = Number(presto_version[1])
+if (presto_version && presto_version >= 15) { presto = false; webkit = true }
+// Some browsers use the wrong event properties to signal cmd/ctrl on OS X
+export let flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11))
+export let captureRightClick = gecko || (ie && ie_version >= 9)
diff --git a/public/codemirror/src/util/dom.js b/public/codemirror/src/util/dom.js
new file mode 100644
index 000000000..94823c21b
--- /dev/null
+++ b/public/codemirror/src/util/dom.js
@@ -0,0 +1,97 @@
+import { ie, ios } from "./browser"
+
+export function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") }
+
+export let rmClass = function(node, cls) {
+  let current = node.className
+  let match = classTest(cls).exec(current)
+  if (match) {
+    let after = current.slice(match.index + match[0].length)
+    node.className = current.slice(0, match.index) + (after ? match[1] + after : "")
+  }
+}
+
+export function removeChildren(e) {
+  for (let count = e.childNodes.length; count > 0; --count)
+    e.removeChild(e.firstChild)
+  return e
+}
+
+export function removeChildrenAndAdd(parent, e) {
+  return removeChildren(parent).appendChild(e)
+}
+
+export function elt(tag, content, className, style) {
+  let e = document.createElement(tag)
+  if (className) e.className = className
+  if (style) e.style.cssText = style
+  if (typeof content == "string") e.appendChild(document.createTextNode(content))
+  else if (content) for (let i = 0; i < content.length; ++i) e.appendChild(content[i])
+  return e
+}
+// wrapper for elt, which removes the elt from the accessibility tree
+export function eltP(tag, content, className, style) {
+  let e = elt(tag, content, className, style)
+  e.setAttribute("role", "presentation")
+  return e
+}
+
+export let range
+if (document.createRange) range = function(node, start, end, endNode) {
+  let r = document.createRange()
+  r.setEnd(endNode || node, end)
+  r.setStart(node, start)
+  return r
+}
+else range = function(node, start, end) {
+  let r = document.body.createTextRange()
+  try { r.moveToElementText(node.parentNode) }
+  catch(e) { return r }
+  r.collapse(true)
+  r.moveEnd("character", end)
+  r.moveStart("character", start)
+  return r
+}
+
+export function contains(parent, child) {
+  if (child.nodeType == 3) // Android browser always returns false when child is a textnode
+    child = child.parentNode
+  if (parent.contains)
+    return parent.contains(child)
+  do {
+    if (child.nodeType == 11) child = child.host
+    if (child == parent) return true
+  } while (child = child.parentNode)
+}
+
+export function activeElt() {
+  // IE and Edge may throw an "Unspecified Error" when accessing document.activeElement.
+  // IE < 10 will throw when accessed while the page is loading or in an iframe.
+  // IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable.
+  let activeElement
+  try {
+    activeElement = document.activeElement
+  } catch(e) {
+    activeElement = document.body || null
+  }
+  while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement)
+    activeElement = activeElement.shadowRoot.activeElement
+  return activeElement
+}
+
+export function addClass(node, cls) {
+  let current = node.className
+  if (!classTest(cls).test(current)) node.className += (current ? " " : "") + cls
+}
+export function joinClasses(a, b) {
+  let as = a.split(" ")
+  for (let i = 0; i < as.length; i++)
+    if (as[i] && !classTest(as[i]).test(b)) b += " " + as[i]
+  return b
+}
+
+export let selectInput = function(node) { node.select() }
+if (ios) // Mobile Safari apparently has a bug where select() is broken.
+  selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length }
+else if (ie) // Suppress mysterious IE10 errors
+  selectInput = function(node) { try { node.select() } catch(_e) {} }
diff --git a/public/codemirror/src/util/event.js b/public/codemirror/src/util/event.js
new file mode 100644
index 000000000..29fd4c598
--- /dev/null
+++ b/public/codemirror/src/util/event.js
@@ -0,0 +1,103 @@
+import { mac } from "./browser"
+import { indexOf } from "./misc"
+
+// EVENT HANDLING
+
+// Lightweight event framework. on/off also work on DOM nodes,
+// registering native DOM handlers.
+
+const noHandlers = []
+
+export let on = function(emitter, type, f) {
+  if (emitter.addEventListener) {
+    emitter.addEventListener(type, f, false)
+  } else if (emitter.attachEvent) {
+    emitter.attachEvent("on" + type, f)
+  } else {
+    let map = emitter._handlers || (emitter._handlers = {})
+    map[type] = (map[type] || noHandlers).concat(f)
+  }
+}
+
+export function getHandlers(emitter, type) {
+  return emitter._handlers && emitter._handlers[type] || noHandlers
+}
+
+export function off(emitter, type, f) {
+  if (emitter.removeEventListener) {
+    emitter.removeEventListener(type, f, false)
+  } else if (emitter.detachEvent) {
+    emitter.detachEvent("on" + type, f)
+  } else {
+    let map = emitter._handlers, arr = map && map[type]
+    if (arr) {
+      let index = indexOf(arr, f)
+      if (index > -1)
+        map[type] = arr.slice(0, index).concat(arr.slice(index + 1))
+    }
+  }
+}
+
+export function signal(emitter, type /*, values...*/) {
+  let handlers = getHandlers(emitter, type)
+  if (!handlers.length) return
+  let args = Array.prototype.slice.call(arguments, 2)
+  for (let i = 0; i < handlers.length; ++i) handlers[i].apply(null, args)
+}
+
+// The DOM events that CodeMirror handles can be overridden by
+// registering a (non-DOM) handler on the editor for the event name,
+// and preventDefault-ing the event in that handler.
+export function signalDOMEvent(cm, e, override) {
+  if (typeof e == "string")
+    e = {type: e, preventDefault: function() { this.defaultPrevented = true }}
+  signal(cm, override || e.type, cm, e)
+  return e_defaultPrevented(e) || e.codemirrorIgnore
+}
+
+export function signalCursorActivity(cm) {
+  let arr = cm._handlers && cm._handlers.cursorActivity
+  if (!arr) return
+  let set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = [])
+  for (let i = 0; i < arr.length; ++i) if (indexOf(set, arr[i]) == -1)
+    set.push(arr[i])
+}
+
+export function hasHandler(emitter, type) {
+  return getHandlers(emitter, type).length > 0
+}
+
+// Add on and off methods to a constructor's prototype, to make
+// registering events on such objects more convenient.
+export function eventMixin(ctor) {
+  ctor.prototype.on = function(type, f) {on(this, type, f)}
+  ctor.prototype.off = function(type, f) {off(this, type, f)}
+}
+
+// Due to the fact that we still support jurassic IE versions, some
+// compatibility wrappers are needed.
+
+export function e_preventDefault(e) {
+  if (e.preventDefault) e.preventDefault()
+  else e.returnValue = false
+}
+export function e_stopPropagation(e) {
+  if (e.stopPropagation) e.stopPropagation()
+  else e.cancelBubble = true
+}
+export function e_defaultPrevented(e) {
+  return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false
+}
+export function e_stop(e) {e_preventDefault(e); e_stopPropagation(e)}
+
+export function e_target(e) {return e.target || e.srcElement}
+export function e_button(e) {
+  let b = e.which
+  if (b == null) {
+    if (e.button & 1) b = 1
+    else if (e.button & 2) b = 3
+    else if (e.button & 4) b = 2
+  }
+  if (mac && e.ctrlKey && b == 1) b = 3
+  return b
+}
diff --git a/public/codemirror/src/util/feature_detection.js b/public/codemirror/src/util/feature_detection.js
new file mode 100644
index 000000000..e65881d4c
--- /dev/null
+++ b/public/codemirror/src/util/feature_detection.js
@@ -0,0 +1,84 @@
+import { elt, range, removeChildren, removeChildrenAndAdd } from "./dom"
+import { ie, ie_version } from "./browser"
+
+// Detect drag-and-drop
+export let dragAndDrop = function() {
+  // There is *some* kind of drag-and-drop support in IE6-8, but I
+  // couldn't get it to work yet.
+  if (ie && ie_version < 9) return false
+  let div = elt('div')
+  return "draggable" in div || "dragDrop" in div
+}()
+
+let zwspSupported
+export function zeroWidthElement(measure) {
+  if (zwspSupported == null) {
+    let test = elt("span", "\u200b")
+    removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")]))
+    if (measure.firstChild.offsetHeight != 0)
+      zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8)
+  }
+  let node = zwspSupported ? elt("span", "\u200b") :
+    elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px")
+  node.setAttribute("cm-text", "")
+  return node
+}
+
+// Feature-detect IE's crummy client rect reporting for bidi text
+let badBidiRects
+export function hasBadBidiRects(measure) {
+  if (badBidiRects != null) return badBidiRects
+  let txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA"))
+  let r0 = range(txt, 0, 1).getBoundingClientRect()
+  let r1 = range(txt, 1, 2).getBoundingClientRect()
+  removeChildren(measure)
+  if (!r0 || r0.left == r0.right) return false // Safari returns null in some cases (#2780)
+  return badBidiRects = (r1.right - r0.right < 3)
+}
+
+// See if "".split is the broken IE version, if so, provide an
+// alternative way to split lines.
+export let splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? string => {
+  let pos = 0, result = [], l = string.length
+  while (pos <= l) {
+    let nl = string.indexOf("\n", pos)
+    if (nl == -1) nl = string.length
+    let line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl)
+    let rt = line.indexOf("\r")
+    if (rt != -1) {
+      result.push(line.slice(0, rt))
+      pos += rt + 1
+    } else {
+      result.push(line)
+      pos = nl + 1
+    }
+  }
+  return result
+} : string => string.split(/\r\n?|\n/)
+
+export let hasSelection = window.getSelection ? te => {
+  try { return te.selectionStart != te.selectionEnd }
+  catch(e) { return false }
+} : te => {
+  let range
+  try {range = te.ownerDocument.selection.createRange()}
+  catch(e) {}
+  if (!range || range.parentElement() != te) return false
+  return range.compareEndPoints("StartToEnd", range) != 0
+}
+
+export let hasCopyEvent = (() => {
+  let e = elt("div")
+  if ("oncopy" in e) return true
+  e.setAttribute("oncopy", "return;")
+  return typeof e.oncopy == "function"
+})()
+
+let badZoomedRects = null
+export function hasBadZoomedRects(measure) {
+  if (badZoomedRects != null) return badZoomedRects
+  let node = removeChildrenAndAdd(measure, elt("span", "x"))
+  let normal = node.getBoundingClientRect()
+  let fromRange = range(node, 0, 1).getBoundingClientRect()
+  return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1
+}
diff --git a/public/codemirror/src/util/misc.js b/public/codemirror/src/util/misc.js
new file mode 100644
index 000000000..2ad1d0ed7
--- /dev/null
+++ b/public/codemirror/src/util/misc.js
@@ -0,0 +1,145 @@
+export function bind(f) {
+  let args = Array.prototype.slice.call(arguments, 1)
+  return function(){return f.apply(null, args)}
+}
+
+export function copyObj(obj, target, overwrite) {
+  if (!target) target = {}
+  for (let prop in obj)
+    if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop)))
+      target[prop] = obj[prop]
+  return target
+}
+
+// Counts the column offset in a string, taking tabs into account.
+// Used mostly to find indentation.
+export function countColumn(string, end, tabSize, startIndex, startValue) {
+  if (end == null) {
+    end = string.search(/[^\s\u00a0]/)
+    if (end == -1) end = string.length
+  }
+  for (let i = startIndex || 0, n = startValue || 0;;) {
+    let nextTab = string.indexOf("\t", i)
+    if (nextTab < 0 || nextTab >= end)
+      return n + (end - i)
+    n += nextTab - i
+    n += tabSize - (n % tabSize)
+    i = nextTab + 1
+  }
+}
+
+export class Delayed {
+  constructor() {this.id = null}
+  set(ms, f) {
+    clearTimeout(this.id)
+    this.id = setTimeout(f, ms)
+  }
+}
+
+export function indexOf(array, elt) {
+  for (let i = 0; i < array.length; ++i)
+    if (array[i] == elt) return i
+  return -1
+}
+
+// Number of pixels added to scroller and sizer to hide scrollbar
+export let scrollerGap = 30
+
+// Returned or thrown by various protocols to signal 'I'm not
+// handling this'.
+export let Pass = {toString: function(){return "CodeMirror.Pass"}}
+
+// Reused option objects for setSelection & friends
+export let sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"}
+
+// The inverse of countColumn -- find the offset that corresponds to
+// a particular column.
+export function findColumn(string, goal, tabSize) {
+  for (let pos = 0, col = 0;;) {
+    let nextTab = string.indexOf("\t", pos)
+    if (nextTab == -1) nextTab = string.length
+    let skipped = nextTab - pos
+    if (nextTab == string.length || col + skipped >= goal)
+      return pos + Math.min(skipped, goal - col)
+    col += nextTab - pos
+    col += tabSize - (col % tabSize)
+    pos = nextTab + 1
+    if (col >= goal) return pos
+  }
+}
+
+let spaceStrs = [""]
+export function spaceStr(n) {
+  while (spaceStrs.length <= n)
+    spaceStrs.push(lst(spaceStrs) + " ")
+  return spaceStrs[n]
+}
+
+export function lst(arr) { return arr[arr.length-1] }
+
+export function map(array, f) {
+  let out = []
+  for (let i = 0; i < array.length; i++) out[i] = f(array[i], i)
+  return out
+}
+
+export function insertSorted(array, value, score) {
+  let pos = 0, priority = score(value)
+  while (pos < array.length && score(array[pos]) <= priority) pos++
+  array.splice(pos, 0, value)
+}
+
+function nothing() {}
+
+export function createObj(base, props) {
+  let inst
+  if (Object.create) {
+    inst = Object.create(base)
+  } else {
+    nothing.prototype = base
+    inst = new nothing()
+  }
+  if (props) copyObj(props, inst)
+  return inst
+}
+
+let nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/
+export function isWordCharBasic(ch) {
+  return /\w/.test(ch) || ch > "\x80" &&
+    (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch))
+}
+export function isWordChar(ch, helper) {
+  if (!helper) return isWordCharBasic(ch)
+  if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) return true
+  return helper.test(ch)
+}
+
+export function isEmpty(obj) {
+  for (let n in obj) if (obj.hasOwnProperty(n) && obj[n]) return false
+  return true
+}
+
+// Extending unicode characters. A series of a non-extending char +
+// any number of extending chars is treated as a single unit as far
+// as editing and measuring is concerned. This is not fully correct,
+// since some scripts/fonts/browsers also treat other configurations
+// of code points as a group.
+let extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/
+export function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) }
+
+// Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range.
+export function skipExtendingChars(str, pos, dir) {
+  while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) pos += dir
+  return pos
+}
+
+// Returns the value from the range [`from`; `to`] that satisfies
+// `pred` and is closest to `from`. Assumes that at least `to` satisfies `pred`.
+export function findFirst(pred, from, to) {
+  for (;;) {
+    if (Math.abs(from - to) <= 1) return pred(from) ? from : to
+    let mid = Math.floor((from + to) / 2)
+    if (pred(mid)) to = mid
+    else from = mid
+  }
+}
diff --git a/public/codemirror/src/util/operation_group.js b/public/codemirror/src/util/operation_group.js
new file mode 100644
index 000000000..b8fa78ac4
--- /dev/null
+++ b/public/codemirror/src/util/operation_group.js
@@ -0,0 +1,72 @@
+import { getHandlers } from "./event"
+
+let operationGroup = null
+
+export function pushOperation(op) {
+  if (operationGroup) {
+    operationGroup.ops.push(op)
+  } else {
+    op.ownsGroup = operationGroup = {
+      ops: [op],
+      delayedCallbacks: []
+    }
+  }
+}
+
+function fireCallbacksForOps(group) {
+  // Calls delayed callbacks and cursorActivity handlers until no
+  // new ones appear
+  let callbacks = group.delayedCallbacks, i = 0
+  do {
+    for (; i < callbacks.length; i++)
+      callbacks[i].call(null)
+    for (let j = 0; j < group.ops.length; j++) {
+      let op = group.ops[j]
+      if (op.cursorActivityHandlers)
+        while (op.cursorActivityCalled < op.cursorActivityHandlers.length)
+          op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm)
+    }
+  } while (i < callbacks.length)
+}
+
+export function finishOperation(op, endCb) {
+  let group = op.ownsGroup
+  if (!group) return
+
+  try { fireCallbacksForOps(group) }
+  finally {
+    operationGroup = null
+    endCb(group)
+  }
+}
+
+let orphanDelayedCallbacks = null
+
+// Often, we want to signal events at a point where we are in the
+// middle of some work, but don't want the handler to start calling
+// other methods on the editor, which might be in an inconsistent
+// state or simply not expect any other events to happen.
+// signalLater looks whether there are any handlers, and schedules
+// them to be executed when the last operation ends, or, if no
+// operation is active, when a timeout fires.
+export function signalLater(emitter, type /*, values...*/) {
+  let arr = getHandlers(emitter, type)
+  if (!arr.length) return
+  let args = Array.prototype.slice.call(arguments, 2), list
+  if (operationGroup) {
+    list = operationGroup.delayedCallbacks
+  } else if (orphanDelayedCallbacks) {
+    list = orphanDelayedCallbacks
+  } else {
+    list = orphanDelayedCallbacks = []
+    setTimeout(fireOrphanDelayed, 0)
+  }
+  for (let i = 0; i < arr.length; ++i)
+    list.push(() => arr[i].apply(null, args))
+}
+
+function fireOrphanDelayed() {
+  let delayed = orphanDelayedCallbacks
+  orphanDelayedCallbacks = null
+  for (let i = 0; i < delayed.length; ++i) delayed[i]()
+}
diff --git a/public/codemirror/test/comment_test.js b/public/codemirror/test/comment_test.js
new file mode 100644
index 000000000..c6b9fe810
--- /dev/null
+++ b/public/codemirror/test/comment_test.js
@@ -0,0 +1,114 @@
+namespace = "comment_";
+
+(function() {
+  function test(name, mode, run, before, after) {
+    return testCM(name, function(cm) {
+      run(cm);
+      eq(cm.getValue(), after);
+    }, {value: before, mode: mode});
+  }
+
+  var simpleProg = "function foo() {\n  return bar;\n}";
+  var inlineBlock = "foo(/* bar */ true);";
+  var inlineBlocks = "foo(/* bar */ true, /* baz */ false);";
+  var multiLineInlineBlock = ["above();", "foo(/* bar */ true);", "below();"];
+
+  test("block", "javascript", function(cm) {
+    cm.blockComment(Pos(0, 3), Pos(3, 0), {blockCommentLead: " *"});
+  }, simpleProg + "\n", "/* function foo() {\n *   return bar;\n * }\n */");
+
+  test("blockToggle", "javascript", function(cm) {
+    cm.blockComment(Pos(0, 3), Pos(2, 0), {blockCommentLead: " *"});
+    cm.uncomment(Pos(0, 3), Pos(2, 0), {blockCommentLead: " *"});
+  }, simpleProg, simpleProg);
+
+  test("blockToggle2", "javascript", function(cm) {
+    cm.setCursor({line: 0, ch: 7 /* inside the block comment */});
+    cm.execCommand("toggleComment");
+  }, inlineBlock, "foo(bar true);");
+
+  // This test should work but currently fails.
+  // test("blockToggle3", "javascript", function(cm) {
+  //   cm.setCursor({line: 0, ch: 7 /* inside the first block comment */});
+  //   cm.execCommand("toggleComment");
+  // }, inlineBlocks, "foo(bar true, /* baz */ false);");
+
+  test("line", "javascript", function(cm) {
+    cm.lineComment(Pos(1, 1), Pos(1, 1));
+  }, simpleProg, "function foo() {\n//   return bar;\n}");
+
+  test("lineToggle", "javascript", function(cm) {
+    cm.lineComment(Pos(0, 0), Pos(2, 1));
+    cm.uncomment(Pos(0, 0), Pos(2, 1));
+  }, simpleProg, simpleProg);
+
+  test("fallbackToBlock", "css", function(cm) {
+    cm.lineComment(Pos(0, 0), Pos(2, 1));
+  }, "html {\n  border: none;\n}", "/* html {\n  border: none;\n} */");
+
+  test("fallbackToLine", "ruby", function(cm) {
+    cm.blockComment(Pos(0, 0), Pos(1));
+  }, "def blah()\n  return hah\n", "# def blah()\n#   return hah\n");
+
+  test("ignoreExternalBlockComments", "javascript", function(cm) {
+    cm.execCommand("toggleComment");
+  }, inlineBlocks, "// " + inlineBlocks);
+
+  test("ignoreExternalBlockComments2", "javascript", function(cm) {
+    cm.setCursor({line: 0, ch: null /* eol */});
+    cm.execCommand("toggleComment");
+  }, inlineBlocks, "// " + inlineBlocks);
+
+  test("ignoreExternalBlockCommentsMultiLineAbove", "javascript", function(cm) {
+    cm.setSelection({line: 0, ch: 0}, {line: 1, ch: 1});
+    cm.execCommand("toggleComment");
+  }, multiLineInlineBlock.join("\n"), ["// " + multiLineInlineBlock[0],
+                                       "// " + multiLineInlineBlock[1],
+                                       multiLineInlineBlock[2]].join("\n"));
+
+  test("ignoreExternalBlockCommentsMultiLineBelow", "javascript", function(cm) {
+    cm.setSelection({line: 1, ch: 13 /* after end of block comment */}, {line: 2, ch: 1});
+    cm.execCommand("toggleComment");
+  }, multiLineInlineBlock.join("\n"), [multiLineInlineBlock[0],
+                                       "// " + multiLineInlineBlock[1],
+                                       "// " + multiLineInlineBlock[2]].join("\n"));
+
+  test("commentRange", "javascript", function(cm) {
+    cm.blockComment(Pos(1, 2), Pos(1, 13), {fullLines: false});
+  }, simpleProg, "function foo() {\n  /*return bar;*/\n}");
+
+  test("indented", "javascript", function(cm) {
+    cm.lineComment(Pos(1, 0), Pos(2), {indent: true});
+  }, simpleProg, "function foo() {\n//   return bar;\n// }");
+
+  test("singleEmptyLine", "javascript", function(cm) {
+    cm.setCursor(1);
+    cm.execCommand("toggleComment");
+  }, "a;\n\nb;", "a;\n// \nb;");
+
+  test("dontMessWithStrings", "javascript", function(cm) {
+    cm.execCommand("toggleComment");
+  }, "console.log(\"/*string*/\");", "// console.log(\"/*string*/\");");
+
+  test("dontMessWithStrings2", "javascript", function(cm) {
+    cm.execCommand("toggleComment");
+  }, "console.log(\"// string\");", "// console.log(\"// string\");");
+
+  test("dontMessWithStrings3", "javascript", function(cm) {
+    cm.execCommand("toggleComment");
+  }, "// console.log(\"// string\");", "console.log(\"// string\");");
+
+  test("includeLastLine", "javascript", function(cm) {
+    cm.execCommand("selectAll")
+    cm.execCommand("toggleComment")
+  }, "// foo\n// bar\nbaz", "// // foo\n// // bar\n// baz")
+
+  test("uncommentWithTrailingBlockEnd", "xml", function(cm) {
+    cm.execCommand("toggleComment")
+  }, " -->", "foo -->")
+
+  test("dontCommentInComment", "xml", function(cm) {
+    cm.setCursor(1, 0)
+    cm.execCommand("toggleComment")
+  }, "", "")
+})();
diff --git a/public/codemirror/test/contenteditable_test.js b/public/codemirror/test/contenteditable_test.js
new file mode 100644
index 000000000..9130fa496
--- /dev/null
+++ b/public/codemirror/test/contenteditable_test.js
@@ -0,0 +1,110 @@
+(function() {
+  "use strict";
+
+  namespace = "contenteditable_";
+  var Pos = CodeMirror.Pos
+
+  function findTextNode(dom, text) {
+    if (dom instanceof CodeMirror) dom = dom.getInputField()
+    if (dom.nodeType == 1) {
+      for (var ch = dom.firstChild; ch; ch = ch.nextSibling) {
+        var found = findTextNode(ch, text)
+        if (found) return found
+      }
+    } else if (dom.nodeType == 3 && dom.nodeValue == text) {
+      return dom
+    }
+  }
+
+  function lineElt(node) {
+    for (;;) {
+      var parent = node.parentNode
+      if (/CodeMirror-code/.test(parent.className)) return node
+      node = parent
+    }
+  }
+
+  testCM("insert_text", function(cm) {
+    findTextNode(cm, "foobar").nodeValue = "foo bar"
+    cm.display.input.updateFromDOM()
+    eq(cm.getValue(), "foo bar")
+  }, {inputStyle: "contenteditable", value: "foobar"})
+
+  testCM("split_line", function(cm) {
+    cm.setSelection(Pos(2, 3))
+    var node = findTextNode(cm, "foobar")
+    node.nodeValue = "foo"
+    var lineNode = lineElt(node)
+    lineNode.parentNode.insertBefore(document.createElement("pre"), lineNode.nextSibling).textContent = "bar"
+    cm.display.input.updateFromDOM()
+    eq(cm.getValue(), "one\ntwo\nfoo\nbar\nthree\nfour\n")
+  }, {inputStyle: "contenteditable", value: "one\ntwo\nfoobar\nthree\nfour\n"})
+
+  testCM("join_line", function(cm) {
+    cm.setSelection(Pos(2, 3))
+    var node = findTextNode(cm, "foo")
+    node.nodeValue = "foobar"
+    var lineNode = lineElt(node)
+    lineNode.parentNode.removeChild(lineNode.nextSibling)
+    cm.display.input.updateFromDOM()
+    eq(cm.getValue(), "one\ntwo\nfoobar\nthree\nfour\n")
+  }, {inputStyle: "contenteditable", value: "one\ntwo\nfoo\nbar\nthree\nfour\n"})
+
+  testCM("delete_multiple", function(cm) {
+    cm.setSelection(Pos(1, 3), Pos(4, 0))
+    var text = findTextNode(cm, "two"), startLine = lineElt(text)
+    for (var i = 0; i < 3; i++)
+      startLine.parentNode.removeChild(startLine.nextSibling)
+    text.nodeValue = "twothree"
+    cm.display.input.updateFromDOM()
+    eq(cm.getValue(), "one\ntwothree\nfour\n")
+  }, {inputStyle: "contenteditable", value: "one\ntwo\nfoo\nbar\nthree\nfour\n"})
+
+  testCM("ambiguous_diff_middle", function(cm) {
+    cm.setSelection(Pos(0, 2))
+    findTextNode(cm, "baah").nodeValue = "baaah"
+    cm.display.input.updateFromDOM()
+    eqCharPos(cm.getCursor(), Pos(0, 3))
+  }, {inputStyle: "contenteditable", value: "baah"})
+
+  testCM("ambiguous_diff_start", function(cm) {
+    cm.setSelection(Pos(0, 1))
+    findTextNode(cm, "baah").nodeValue = "baaah"
+    cm.display.input.updateFromDOM()
+    eqCharPos(cm.getCursor(), Pos(0, 2))
+  }, {inputStyle: "contenteditable", value: "baah"})
+
+  testCM("ambiguous_diff_end", function(cm) {
+    cm.setSelection(Pos(0, 3))
+    findTextNode(cm, "baah").nodeValue = "baaah"
+    cm.display.input.updateFromDOM()
+    eqCharPos(cm.getCursor(), Pos(0, 4))
+  }, {inputStyle: "contenteditable", value: "baah"})
+
+  testCM("force_redraw", function(cm) {
+    findTextNode(cm, "foo").parentNode.appendChild(document.createElement("hr")).className = "inserted"
+    cm.display.input.updateFromDOM()
+    eq(byClassName(cm.getInputField(), "inserted").length, 0)
+  }, {inputStyle: "contenteditable", value: "foo"})
+
+  testCM("type_on_empty_line", function(cm) {
+    cm.setSelection(Pos(1, 0))
+    findTextNode(cm, "\u200b").nodeValue += "hello"
+    cm.display.input.updateFromDOM()
+    eq(cm.getValue(), "foo\nhello\nbar")
+  }, {inputStyle: "contenteditable", value: "foo\n\nbar"})
+
+  testCM("type_after_empty_line", function(cm) {
+    cm.setSelection(Pos(2, 0))
+    findTextNode(cm, "bar").nodeValue = "hellobar"
+    cm.display.input.updateFromDOM()
+    eq(cm.getValue(), "foo\n\nhellobar")
+  }, {inputStyle: "contenteditable", value: "foo\n\nbar"})
+
+  testCM("type_before_empty_line", function(cm) {
+    cm.setSelection(Pos(0, 3))
+    findTextNode(cm, "foo").nodeValue = "foohello"
+    cm.display.input.updateFromDOM()
+    eq(cm.getValue(), "foohello\n\nbar")
+  }, {inputStyle: "contenteditable", value: "foo\n\nbar"})
+})();
diff --git a/public/codemirror/test/doc_test.js b/public/codemirror/test/doc_test.js
new file mode 100644
index 000000000..3af20ff98
--- /dev/null
+++ b/public/codemirror/test/doc_test.js
@@ -0,0 +1,371 @@
+(function() {
+  // A minilanguage for instantiating linked CodeMirror instances and Docs
+  function instantiateSpec(spec, place, opts) {
+    var names = {}, pos = 0, l = spec.length, editors = [];
+    while (spec) {
+      var m = spec.match(/^(\w+)(\*?)(?:='([^\']*)'|<(~?)(\w+)(?:\/(\d+)-(\d+))?)\s*/);
+      var name = m[1], isDoc = m[2], cur;
+      if (m[3]) {
+        cur = isDoc ? CodeMirror.Doc(m[3]) : CodeMirror(place, clone(opts, {value: m[3]}));
+      } else {
+        var other = m[5];
+        if (!names.hasOwnProperty(other)) {
+          names[other] = editors.length;
+          editors.push(CodeMirror(place, opts));
+        }
+        var doc = editors[names[other]].linkedDoc({
+          sharedHist: !m[4],
+          from: m[6] ? Number(m[6]) : null,
+          to: m[7] ? Number(m[7]) : null
+        });
+        cur = isDoc ? doc : CodeMirror(place, clone(opts, {value: doc}));
+      }
+      names[name] = editors.length;
+      editors.push(cur);
+      spec = spec.slice(m[0].length);
+    }
+    return editors;
+  }
+
+  function clone(obj, props) {
+    if (!obj) return;
+    clone.prototype = obj;
+    var inst = new clone();
+    if (props) for (var n in props) if (props.hasOwnProperty(n))
+      inst[n] = props[n];
+    return inst;
+  }
+
+  function eqAll(val) {
+    var end = arguments.length, msg = null;
+    if (typeof arguments[end-1] == "string")
+      msg = arguments[--end];
+    if (i == end) throw new Error("No editors provided to eqAll");
+    for (var i = 1; i < end; ++i)
+      eq(arguments[i].getValue(), val, msg)
+  }
+
+  function testDoc(name, spec, run, opts, expectFail) {
+    if (!opts) opts = {};
+
+    return test("doc_" + name, function() {
+      var place = document.getElementById("testground");
+      var editors = instantiateSpec(spec, place, opts);
+      var successful = false;
+
+      try {
+        run.apply(null, editors);
+        successful = true;
+      } finally {
+        if (!successful || verbose) {
+          place.style.visibility = "visible";
+        } else {
+          for (var i = 0; i < editors.length; ++i)
+            if (editors[i] instanceof CodeMirror)
+              place.removeChild(editors[i].getWrapperElement());
+        }
+      }
+    }, expectFail);
+  }
+
+  var ie_lt8 = /MSIE [1-7]\b/.test(navigator.userAgent);
+
+  function testBasic(a, b) {
+    eqAll("x", a, b);
+    a.setValue("hey");
+    eqAll("hey", a, b);
+    b.setValue("wow");
+    eqAll("wow", a, b);
+    a.replaceRange("u\nv\nw", Pos(0, 3));
+    b.replaceRange("i", Pos(0, 4));
+    b.replaceRange("j", Pos(2, 1));
+    eqAll("wowui\nv\nwj", a, b);
+  }
+
+  testDoc("basic", "A='x' B 0, "not at left");
+    is(pos.top > 0, "not at top");
+  });
+
+  testDoc("copyDoc", "A='u'", function(a) {
+    var copy = a.getDoc().copy(true);
+    a.setValue("foo");
+    copy.setValue("bar");
+    var old = a.swapDoc(copy);
+    eq(a.getValue(), "bar");
+    a.undo();
+    eq(a.getValue(), "u");
+    a.swapDoc(old);
+    eq(a.getValue(), "foo");
+    eq(old.historySize().undo, 1);
+    eq(old.copy(false).historySize().undo, 0);
+  });
+
+  testDoc("docKeepsMode", "A='1+1'", function(a) {
+    var other = CodeMirror.Doc("hi", "text/x-markdown");
+    a.setOption("mode", "text/javascript");
+    var old = a.swapDoc(other);
+    eq(a.getOption("mode"), "text/x-markdown");
+    eq(a.getMode().name, "markdown");
+    a.swapDoc(old);
+    eq(a.getOption("mode"), "text/javascript");
+    eq(a.getMode().name, "javascript");
+  });
+
+  testDoc("subview", "A='1\n2\n3\n4\n5' B<~A/1-3", function(a, b) {
+    eq(b.getValue(), "2\n3");
+    eq(b.firstLine(), 1);
+    b.setCursor(Pos(4));
+    eqCharPos(b.getCursor(), Pos(2, 1));
+    a.replaceRange("-1\n0\n", Pos(0, 0));
+    eq(b.firstLine(), 3);
+    eqCharPos(b.getCursor(), Pos(4, 1));
+    a.undo();
+    eqCharPos(b.getCursor(), Pos(2, 1));
+    b.replaceRange("oyoy\n", Pos(2, 0));
+    eq(a.getValue(), "1\n2\noyoy\n3\n4\n5");
+    b.undo();
+    eq(a.getValue(), "1\n2\n3\n4\n5");
+  });
+
+  testDoc("subviewEditOnBoundary", "A='11\n22\n33\n44\n55' B<~A/1-4", function(a, b) {
+    a.replaceRange("x\nyy\nz", Pos(0, 1), Pos(2, 1));
+    eq(b.firstLine(), 2);
+    eq(b.lineCount(), 2);
+    eq(b.getValue(), "z3\n44");
+    a.replaceRange("q\nrr\ns", Pos(3, 1), Pos(4, 1));
+    eq(b.firstLine(), 2);
+    eq(b.getValue(), "z3\n4q");
+    eq(a.getValue(), "1x\nyy\nz3\n4q\nrr\ns5");
+    a.execCommand("selectAll");
+    a.replaceSelection("!");
+    eqAll("!", a, b);
+  });
+
+
+  testDoc("sharedMarker", "A='ab\ncd\nef\ngh' B 500){
+        totalTime = 0;
+        delay = 50;
+      }
+      setTimeout(function(){step(i + 1);}, delay);
+    } else { // Quit tests
+      running = false;
+      return null;
+    }
+  }
+  step(0);
+}
+
+function label(str, msg) {
+  if (msg) return str + " (" + msg + ")";
+  return str;
+}
+function eq(a, b, msg) {
+  if (a != b) throw new Failure(label(a + " != " + b, msg));
+}
+function near(a, b, margin, msg) {
+  if (Math.abs(a - b) > margin)
+    throw new Failure(label(a + " is not close to " + b + " (" + margin + ")", msg));
+}
+function eqCharPos(a, b, msg) {
+  function str(p) { return "{line:" + p.line + ",ch:" + p.ch + ",sticky:" + p.sticky + "}"; }
+  if (a == b) return;
+  if (a == null) throw new Failure(label("comparing null to " + str(b), msg));
+  if (b == null) throw new Failure(label("comparing " + str(a) + " to null", msg));
+  if (a.line != b.line || a.ch != b.ch) throw new Failure(label(str(a) + " != " + str(b), msg));
+}
+function eqCursorPos(a, b, msg) {
+  eqCharPos(a, b, msg);
+  if (a) eq(a.sticky, b.sticky, msg ? msg + ' (sticky)' : 'sticky');
+}
+function is(a, msg) {
+  if (!a) throw new Failure(label("assertion failed", msg));
+}
+
+function countTests() {
+  if (!filters.length) return tests.length;
+  var sum = 0;
+  for (var i = 0; i < tests.length; ++i) {
+    var name = tests[i].name;
+    for (var j = 0; j < filters.length; j++) {
+      if (name.match(filters[j])) {
+        ++sum;
+        break;
+      }
+    }
+  }
+  return sum;
+}
+
+function parseTestFilter(s) {
+  if (/_\*$/.test(s)) return new RegExp("^" + s.slice(0, s.length - 2), "i");
+  else return new RegExp(s, "i");
+}
diff --git a/public/codemirror/test/emacs_test.js b/public/codemirror/test/emacs_test.js
new file mode 100644
index 000000000..b73eedaa6
--- /dev/null
+++ b/public/codemirror/test/emacs_test.js
@@ -0,0 +1,147 @@
+(function() {
+  "use strict";
+
+  var Pos = CodeMirror.Pos;
+  namespace = "emacs_";
+
+  var eventCache = {};
+  function fakeEvent(keyName) {
+    var event = eventCache[key];
+    if (event) return event;
+
+    var ctrl, shift, alt;
+    var key = keyName.replace(/\w+-/g, function(type) {
+      if (type == "Ctrl-") ctrl = true;
+      else if (type == "Alt-") alt = true;
+      else if (type == "Shift-") shift = true;
+      return "";
+    });
+    var code;
+    for (var c in CodeMirror.keyNames)
+      if (CodeMirror.keyNames[c] == key) { code = c; break; }
+    if (code == null) throw new Error("Unknown key: " + key);
+
+    return eventCache[keyName] = {
+      type: "keydown", keyCode: code, ctrlKey: ctrl, shiftKey: shift, altKey: alt,
+      preventDefault: function(){}, stopPropagation: function(){}
+    };
+  }
+
+  function sim(name, start /*, actions... */) {
+    var keys = Array.prototype.slice.call(arguments, 2);
+    testCM(name, function(cm) {
+      for (var i = 0; i < keys.length; ++i) {
+        var cur = keys[i];
+        if (cur instanceof Pos) cm.setCursor(cur);
+        else if (cur.call) cur(cm);
+        else cm.triggerOnKeyDown(fakeEvent(cur));
+      }
+    }, {keyMap: "emacs", value: start, mode: "javascript"});
+  }
+
+  function at(line, ch, sticky) { return function(cm) { eqCursorPos(cm.getCursor(), Pos(line, ch, sticky)); }; }
+  function txt(str) { return function(cm) { eq(cm.getValue(), str); }; }
+
+  sim("motionHSimple", "abc", "Ctrl-F", "Ctrl-F", "Ctrl-B", at(0, 1, "after"));
+  sim("motionHMulti", "abcde",
+      "Ctrl-4", "Ctrl-F", at(0, 4, "before"), "Ctrl--", "Ctrl-2", "Ctrl-F", at(0, 2, "after"),
+      "Ctrl-5", "Ctrl-B", at(0, 0, "after"));
+
+  sim("motionHWord", "abc. def ghi",
+      "Alt-F", at(0, 3, "before"), "Alt-F", at(0, 8, "before"),
+      "Ctrl-B", "Alt-B", at(0, 5, "after"), "Alt-B", at(0, 0, "after"));
+  sim("motionHWordMulti", "abc. def ghi ",
+      "Ctrl-3", "Alt-F", at(0, 12, "before"), "Ctrl-2", "Alt-B", at(0, 5, "after"),
+      "Ctrl--", "Alt-B", at(0, 8, "before"));
+
+  sim("motionVSimple", "a\nb\nc\n", "Ctrl-N", "Ctrl-N", "Ctrl-P", at(1, 0, "after"));
+  sim("motionVMulti", "a\nb\nc\nd\ne\n",
+      "Ctrl-2", "Ctrl-N", at(2, 0, "after"), "Ctrl-F", "Ctrl--", "Ctrl-N", at(1, 1, "before"),
+      "Ctrl--", "Ctrl-3", "Ctrl-P", at(4, 1, "before"));
+
+  sim("killYank", "abc\ndef\nghi",
+      "Ctrl-F", "Ctrl-Space", "Ctrl-N", "Ctrl-N", "Ctrl-W", "Ctrl-E", "Ctrl-Y",
+      txt("ahibc\ndef\ng"));
+  sim("killRing", "abcdef",
+      "Ctrl-Space", "Ctrl-F", "Ctrl-W", "Ctrl-Space", "Ctrl-F", "Ctrl-W",
+      "Ctrl-Y", "Alt-Y",
+      txt("acdef"));
+  sim("copyYank", "abcd",
+      "Ctrl-Space", "Ctrl-E", "Alt-W", "Ctrl-Y",
+      txt("abcdabcd"));
+
+  sim("killLineSimple", "foo\nbar", "Ctrl-F", "Ctrl-K", txt("f\nbar"));
+  sim("killLineEmptyLine", "foo\n  \nbar", "Ctrl-N", "Ctrl-K", txt("foo\nbar"));
+  sim("killLineMulti", "foo\nbar\nbaz",
+      "Ctrl-F", "Ctrl-F", "Ctrl-K", "Ctrl-K", "Ctrl-K", "Ctrl-A", "Ctrl-Y",
+      txt("o\nbarfo\nbaz"));
+
+  sim("moveByParagraph", "abc\ndef\n\n\nhij\nklm\n\n",
+      "Ctrl-F", "Ctrl-Down", at(2, 0), "Ctrl-Down", at(6, 0),
+      "Ctrl-N", "Ctrl-Up", at(3, 0), "Ctrl-Up", at(0, 0),
+      Pos(1, 2), "Ctrl-Down", at(2, 0), Pos(4, 2), "Ctrl-Up", at(3, 0));
+  sim("moveByParagraphMulti", "abc\n\ndef\n\nhij\n\nklm",
+      "Ctrl-U", "2", "Ctrl-Down", at(3, 0),
+      "Shift-Alt-.", "Ctrl-3", "Ctrl-Up", at(1, 0));
+
+  sim("moveBySentence", "sentence one! sentence\ntwo\n\nparagraph two",
+      "Alt-E", at(0, 13), "Alt-E", at(1, 3), "Ctrl-F", "Alt-A", at(0, 13));
+
+  sim("moveByExpr", "function foo(a, b) {}",
+      "Ctrl-Alt-F", at(0, 8), "Ctrl-Alt-F", at(0, 12), "Ctrl-Alt-F", at(0, 18),
+      "Ctrl-Alt-B", at(0, 12), "Ctrl-Alt-B", at(0, 9));
+  sim("moveByExprMulti", "foo bar baz bug",
+      "Ctrl-2", "Ctrl-Alt-F", at(0, 7),
+      "Ctrl--", "Ctrl-Alt-F", at(0, 4),
+      "Ctrl--", "Ctrl-2", "Ctrl-Alt-B", at(0, 11));
+  sim("delExpr", "var x = [\n  a,\n  b\n  c\n];",
+      Pos(0, 8), "Ctrl-Alt-K", txt("var x = ;"), "Ctrl-/",
+      Pos(4, 1), "Ctrl-Alt-Backspace", txt("var x = ;"));
+  sim("delExprMulti", "foo bar baz",
+      "Ctrl-2", "Ctrl-Alt-K", txt(" baz"),
+      "Ctrl-/", "Ctrl-E", "Ctrl-2", "Ctrl-Alt-Backspace", txt("foo "));
+
+  sim("justOneSpace", "hi      bye  ",
+      Pos(0, 4), "Alt-Space", txt("hi bye  "),
+      Pos(0, 4), "Alt-Space", txt("hi b ye  "),
+      "Ctrl-A", "Alt-Space", "Ctrl-E", "Alt-Space", txt(" hi b ye "));
+
+  sim("openLine", "foo bar", "Alt-F", "Ctrl-O", txt("foo\n bar"))
+
+  sim("transposeChar", "abcd\ne",
+      "Ctrl-F", "Ctrl-T", "Ctrl-T", txt("bcad\ne"), at(0, 3),
+      "Ctrl-F", "Ctrl-T", "Ctrl-T", "Ctrl-T", txt("bcda\ne"), at(0, 4),
+      "Ctrl-F", "Ctrl-T", txt("bcde\na"), at(1, 1));
+
+  sim("manipWordCase", "foo BAR bAZ",
+      "Alt-C", "Alt-L", "Alt-U", txt("Foo bar BAZ"),
+      "Ctrl-A", "Alt-U", "Alt-L", "Alt-C", txt("FOO bar Baz"));
+  sim("manipWordCaseMulti", "foo Bar bAz",
+      "Ctrl-2", "Alt-U", txt("FOO BAR bAz"),
+      "Ctrl-A", "Ctrl-3", "Alt-C", txt("Foo Bar Baz"));
+
+  sim("upExpr", "foo {\n  bar[];\n  baz(blah);\n}",
+      Pos(2, 7), "Ctrl-Alt-U", at(2, 5), "Ctrl-Alt-U", at(0, 4));
+  sim("transposeExpr", "do foo[bar] dah",
+      Pos(0, 6), "Ctrl-Alt-T", txt("do [bar]foo dah"));
+
+  sim("clearMark", "abcde", Pos(0, 2), "Ctrl-Space", "Ctrl-F", "Ctrl-F",
+      "Ctrl-G", "Ctrl-W", txt("abcde"));
+
+  sim("delRegion", "abcde", "Ctrl-Space", "Ctrl-F", "Ctrl-F", "Delete", txt("cde"));
+  sim("backspaceRegion", "abcde", "Ctrl-Space", "Ctrl-F", "Ctrl-F", "Backspace", txt("cde"));
+
+  testCM("save", function(cm) {
+    var saved = false;
+    CodeMirror.commands.save = function(cm) { saved = cm.getValue(); };
+    cm.triggerOnKeyDown(fakeEvent("Ctrl-X"));
+    cm.triggerOnKeyDown(fakeEvent("Ctrl-S"));
+    is(saved, "hi");
+  }, {value: "hi", keyMap: "emacs"});
+
+  testCM("gotoInvalidLineFloat", function(cm) {
+    cm.openDialog = function(_, cb) { cb("2.2"); };
+    cm.triggerOnKeyDown(fakeEvent("Alt-G"));
+    cm.triggerOnKeyDown(fakeEvent("G"));
+  }, {value: "1\n2\n3\n4", keyMap: "emacs"});
+})();
diff --git a/public/codemirror/test/index.html b/public/codemirror/test/index.html
new file mode 100644
index 000000000..4146a4d45
--- /dev/null
+++ b/public/codemirror/test/index.html
@@ -0,0 +1,267 @@
+
+
+
+CodeMirror: Test Suite
+
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+
    
+  
    Test Suite
    
+
+    
    A limited set of programmatic sanity tests for CodeMirror.
    
+
+    
    
+      
    Ran 0 of 0 tests
    
+    
    
+    
    Please enable JavaScript...
    
+    
    
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+    
    
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diff --git a/public/codemirror/test/lint.js b/public/codemirror/test/lint.js
new file mode 100644
index 000000000..e7c114cd9
--- /dev/null
+++ b/public/codemirror/test/lint.js
@@ -0,0 +1,20 @@
+var blint = require("blint");
+
+["mode", "lib", "addon", "keymap"].forEach(function(dir) {
+  blint.checkDir(dir, {
+    browser: true,
+    allowedGlobals: ["CodeMirror", "define", "test", "requirejs"],
+    ecmaVersion: 5,
+    tabs: dir == "lib"
+  });
+});
+
+["src"].forEach(function(dir) {
+  blint.checkDir(dir, {
+    browser: true,
+    ecmaVersion: 6,
+    semicolons: false
+  });
+});
+
+module.exports = {ok: blint.success()};
diff --git a/public/codemirror/test/mode_test.css b/public/codemirror/test/mode_test.css
new file mode 100644
index 000000000..f83271b4e
--- /dev/null
+++ b/public/codemirror/test/mode_test.css
@@ -0,0 +1,23 @@
+.mt-output .mt-token {
+  border: 1px solid #ddd;
+  white-space: pre;
+  font-family: "Consolas", monospace;
+  text-align: center;
+}
+
+.mt-output .mt-style {
+  font-size: x-small;
+}
+
+.mt-output .mt-state {
+  font-size: x-small;
+  vertical-align: top;
+}
+
+.mt-output .mt-state-row {
+  display: none;
+}
+
+.mt-state-unhide .mt-output .mt-state-row {
+  display: table-row;
+}
diff --git a/public/codemirror/test/mode_test.js b/public/codemirror/test/mode_test.js
new file mode 100644
index 000000000..0aed50f7d
--- /dev/null
+++ b/public/codemirror/test/mode_test.js
@@ -0,0 +1,192 @@
+/**
+ * Helper to test CodeMirror highlighting modes. It pretty prints output of the
+ * highlighter and can check against expected styles.
+ *
+ * Mode tests are registered by calling test.mode(testName, mode,
+ * tokens), where mode is a mode object as returned by
+ * CodeMirror.getMode, and tokens is an array of lines that make up
+ * the test.
+ *
+ * These lines are strings, in which styled stretches of code are
+ * enclosed in brackets `[]`, and prefixed by their style. For
+ * example, `[keyword if]`. Brackets in the code itself must be
+ * duplicated to prevent them from being interpreted as token
+ * boundaries. For example `a[[i]]` for `a[i]`. If a token has
+ * multiple styles, the styles must be separated by ampersands, for
+ * example `[tag&error ]`.
+ *
+ * See the test.js files in the css, markdown, gfm, and stex mode
+ * directories for examples.
+ */
+(function() {
+  function findSingle(str, pos, ch) {
+    for (;;) {
+      var found = str.indexOf(ch, pos);
+      if (found == -1) return null;
+      if (str.charAt(found + 1) != ch) return found;
+      pos = found + 2;
+    }
+  }
+
+  var styleName = /[\w&-_]+/g;
+  function parseTokens(strs) {
+    var tokens = [], plain = "";
+    for (var i = 0; i < strs.length; ++i) {
+      if (i) plain += "\n";
+      var str = strs[i], pos = 0;
+      while (pos < str.length) {
+        var style = null, text;
+        if (str.charAt(pos) == "[" && str.charAt(pos+1) != "[") {
+          styleName.lastIndex = pos + 1;
+          var m = styleName.exec(str);
+          style = m[0].replace(/&/g, " ");
+          var textStart = pos + style.length + 2;
+          var end = findSingle(str, textStart, "]");
+          if (end == null) throw new Error("Unterminated token at " + pos + " in '" + str + "'" + style);
+          text = str.slice(textStart, end);
+          pos = end + 1;
+        } else {
+          var end = findSingle(str, pos, "[");
+          if (end == null) end = str.length;
+          text = str.slice(pos, end);
+          pos = end;
+        }
+        text = text.replace(/\[\[|\]\]/g, function(s) {return s.charAt(0);});
+        tokens.push({style: style, text: text});
+        plain += text;
+      }
+    }
+    return {tokens: tokens, plain: plain};
+  }
+
+  test.mode = function(name, mode, tokens, modeName) {
+    var data = parseTokens(tokens);
+    return test((modeName || mode.name) + "_" + name, function() {
+      return compare(data.plain, data.tokens, mode);
+    });
+  };
+
+  function esc(str) {
+    return str.replace('&', '&').replace('<', '<').replace(/>/g, ">").replace(/"/g, """).replace(/'/g, "'");
+;
+  }
+
+  function compare(text, expected, mode) {
+
+    var expectedOutput = [];
+    for (var i = 0; i < expected.length; ++i) {
+      var sty = expected[i].style;
+      if (sty && sty.indexOf(" ")) sty = sty.split(' ').sort().join(' ');
+      expectedOutput.push({style: sty, text: expected[i].text});
+    }
+
+    var observedOutput = highlight(text, mode);
+
+    var s = "";
+    var diff = highlightOutputsDifferent(expectedOutput, observedOutput);
+    if (diff != null) {
+      s += '
    ';
+      s +=   '
    ' + esc(text) + '
    ';
+      s +=   '
    ';
+      s += 'expected:';
+      s +=   prettyPrintOutputTable(expectedOutput, diff);
+      s += 'observed: [display states]';
+      s +=   prettyPrintOutputTable(observedOutput, diff);
+      s +=   '
    ';
+      s += '
    ';
+    }
+    if (observedOutput.indentFailures) {
+      for (var i = 0; i < observedOutput.indentFailures.length; i++)
+        s += "
    " + esc(observedOutput.indentFailures[i]) + "
    ";
+    }
+    if (s) throw new Failure(s);
+  }
+
+  function stringify(obj) {
+    function replacer(key, obj) {
+      if (typeof obj == "function") {
+        var m = obj.toString().match(/function\s*[^\s(]*/);
+        return m ? m[0] : "function";
+      }
+      return obj;
+    }
+    if (window.JSON && JSON.stringify)
+      return JSON.stringify(obj, replacer, 2);
+    return "[unsupported]";  // Fail safely if no native JSON.
+  }
+
+  function highlight(string, mode) {
+    var state = mode.startState();
+
+    var lines = string.replace(/\r\n/g,'\n').split('\n');
+    var st = [], pos = 0;
+    for (var i = 0; i < lines.length; ++i) {
+      var line = lines[i], newLine = true;
+      if (mode.indent) {
+        var ws = line.match(/^\s*/)[0];
+        var indent = mode.indent(state, line.slice(ws.length));
+        if (indent != CodeMirror.Pass && indent != ws.length)
+          (st.indentFailures || (st.indentFailures = [])).push(
+            "Indentation of line " + (i + 1) + " is " + indent + " (expected " + ws.length + ")");
+      }
+      var stream = new CodeMirror.StringStream(line);
+      if (line == "" && mode.blankLine) mode.blankLine(state);
+      /* Start copied code from CodeMirror.highlight */
+      while (!stream.eol()) {
+        for (var j = 0; j < 10 && stream.start >= stream.pos; j++)
+          var compare = mode.token(stream, state);
+        if (j == 10)
+          throw new Failure("Failed to advance the stream." + stream.string + " " + stream.pos);
+        var substr = stream.current();
+        if (compare && compare.indexOf(" ") > -1) compare = compare.split(' ').sort().join(' ');
+        stream.start = stream.pos;
+        if (pos && st[pos-1].style == compare && !newLine) {
+          st[pos-1].text += substr;
+        } else if (substr) {
+          st[pos++] = {style: compare, text: substr, state: stringify(state)};
+        }
+        // Give up when line is ridiculously long
+        if (stream.pos > 5000) {
+          st[pos++] = {style: null, text: this.text.slice(stream.pos)};
+          break;
+        }
+        newLine = false;
+      }
+    }
+
+    return st;
+  }
+
+  function highlightOutputsDifferent(o1, o2) {
+    var minLen = Math.min(o1.length, o2.length);
+    for (var i = 0; i < minLen; ++i)
+      if (o1[i].style != o2[i].style || o1[i].text != o2[i].text) return i;
+    if (o1.length > minLen || o2.length > minLen) return minLen;
+  }
+
+  function prettyPrintOutputTable(output, diffAt) {
+    var s = '';
+    s += '';
+    for (var i = 0; i < output.length; ++i) {
+      var style = output[i].style, val = output[i].text;
+      s +=
+      '';
+    }
+    s += '';
+    for (var i = 0; i < output.length; ++i) {
+      s += '';
+    }
+    if(output[0].state) {
+      s += '';
+      for (var i = 0; i < output.length; ++i) {
+        s += '';
+      }
+    }
+    s += '
    ' +
+        '' +
+        esc(val.replace(/ /g,'\xb7')) +  // · MIDDLE DOT
+        '' +
+        '
    ' + (output[i].style || null) + '
    ' + esc(output[i].state) + '
    ';
+    return s;
+  }
+})();
diff --git a/public/codemirror/test/multi_test.js b/public/codemirror/test/multi_test.js
new file mode 100644
index 000000000..49169b990
--- /dev/null
+++ b/public/codemirror/test/multi_test.js
@@ -0,0 +1,285 @@
+(function() {
+  namespace = "multi_";
+
+  function hasSelections(cm) {
+    var sels = cm.listSelections();
+    var given = (arguments.length - 1) / 4;
+    if (sels.length != given)
+      throw new Failure("expected " + given + " selections, found " + sels.length);
+    for (var i = 0, p = 1; i < given; i++, p += 4) {
+      var anchor = Pos(arguments[p], arguments[p + 1]);
+      var head = Pos(arguments[p + 2], arguments[p + 3]);
+      eqCharPos(sels[i].anchor, anchor, "anchor of selection " + i);
+      eqCharPos(sels[i].head, head, "head of selection " + i);
+    }
+  }
+  function hasCursors(cm) {
+    var sels = cm.listSelections();
+    var given = (arguments.length - 1) / 2;
+    if (sels.length != given)
+      throw new Failure("expected " + given + " selections, found " + sels.length);
+    for (var i = 0, p = 1; i < given; i++, p += 2) {
+      eqCursorPos(sels[i].anchor, sels[i].head, "something selected for " + i);
+      var head = Pos(arguments[p], arguments[p + 1]);
+      eqCharPos(sels[i].head, head, "selection " + i);
+    }
+  }
+
+  testCM("getSelection", function(cm) {
+    select(cm, {anchor: Pos(0, 0), head: Pos(1, 2)}, {anchor: Pos(2, 2), head: Pos(2, 0)});
+    eq(cm.getSelection(), "1234\n56\n90");
+    eq(cm.getSelection(false).join("|"), "1234|56|90");
+    eq(cm.getSelections().join("|"), "1234\n56|90");
+  }, {value: "1234\n5678\n90"});
+
+  testCM("setSelection", function(cm) {
+    select(cm, Pos(3, 0), Pos(0, 0), {anchor: Pos(2, 5), head: Pos(1, 0)});
+    hasSelections(cm, 0, 0, 0, 0,
+                  2, 5, 1, 0,
+                  3, 0, 3, 0);
+    cm.setSelection(Pos(1, 2), Pos(1, 1));
+    hasSelections(cm, 1, 2, 1, 1);
+    select(cm, {anchor: Pos(1, 1), head: Pos(2, 4)},
+           {anchor: Pos(0, 0), head: Pos(1, 3)},
+           Pos(3, 0), Pos(2, 2));
+    hasSelections(cm, 0, 0, 2, 4,
+                  3, 0, 3, 0);
+    cm.setSelections([{anchor: Pos(0, 1), head: Pos(0, 2)},
+                      {anchor: Pos(1, 1), head: Pos(1, 2)},
+                      {anchor: Pos(2, 1), head: Pos(2, 2)}], 1);
+    eqCharPos(cm.getCursor("head"), Pos(1, 2));
+    eqCharPos(cm.getCursor("anchor"), Pos(1, 1));
+    eqCharPos(cm.getCursor("from"), Pos(1, 1));
+    eqCharPos(cm.getCursor("to"), Pos(1, 2));
+    cm.setCursor(Pos(1, 1));
+    hasCursors(cm, 1, 1);
+  }, {value: "abcde\nabcde\nabcde\n"});
+
+  testCM("somethingSelected", function(cm) {
+    select(cm, Pos(0, 1), {anchor: Pos(0, 3), head: Pos(0, 5)});
+    eq(cm.somethingSelected(), true);
+    select(cm, Pos(0, 1), Pos(0, 3), Pos(0, 5));
+    eq(cm.somethingSelected(), false);
+  }, {value: "123456789"});
+
+  testCM("extendSelection", function(cm) {
+    select(cm, Pos(0, 1), Pos(1, 1), Pos(2, 1));
+    cm.setExtending(true);
+    cm.extendSelections([Pos(0, 2), Pos(1, 0), Pos(2, 3)]);
+    hasSelections(cm, 0, 1, 0, 2,
+                  1, 1, 1, 0,
+                  2, 1, 2, 3);
+    cm.extendSelection(Pos(2, 4), Pos(2, 0));
+    hasSelections(cm, 2, 4, 2, 0);
+  }, {value: "1234\n1234\n1234"});
+
+  testCM("addSelection", function(cm) {
+    select(cm, Pos(0, 1), Pos(1, 1));
+    cm.addSelection(Pos(0, 0), Pos(0, 4));
+    hasSelections(cm, 0, 0, 0, 4,
+                  1, 1, 1, 1);
+    cm.addSelection(Pos(2, 2));
+    hasSelections(cm, 0, 0, 0, 4,
+                  1, 1, 1, 1,
+                  2, 2, 2, 2);
+  }, {value: "1234\n1234\n1234"});
+
+  testCM("replaceSelection", function(cm) {
+    var selections = [{anchor: Pos(0, 0), head: Pos(0, 1)},
+                      {anchor: Pos(0, 2), head: Pos(0, 3)},
+                      {anchor: Pos(0, 4), head: Pos(0, 5)},
+                      {anchor: Pos(2, 1), head: Pos(2, 4)},
+                      {anchor: Pos(2, 5), head: Pos(2, 6)}];
+    var val = "123456\n123456\n123456";
+    cm.setValue(val);
+    cm.setSelections(selections);
+    cm.replaceSelection("ab", "around");
+    eq(cm.getValue(), "ab2ab4ab6\n123456\n1ab5ab");
+    hasSelections(cm, 0, 0, 0, 2,
+                  0, 3, 0, 5,
+                  0, 6, 0, 8,
+                  2, 1, 2, 3,
+                  2, 4, 2, 6);
+    cm.setValue(val);
+    cm.setSelections(selections);
+    cm.replaceSelection("", "around");
+    eq(cm.getValue(), "246\n123456\n15");
+    hasSelections(cm, 0, 0, 0, 0,
+                  0, 1, 0, 1,
+                  0, 2, 0, 2,
+                  2, 1, 2, 1,
+                  2, 2, 2, 2);
+    cm.setValue(val);
+    cm.setSelections(selections);
+    cm.replaceSelection("X\nY\nZ", "around");
+    hasSelections(cm, 0, 0, 2, 1,
+                  2, 2, 4, 1,
+                  4, 2, 6, 1,
+                  8, 1, 10, 1,
+                  10, 2, 12, 1);
+    cm.replaceSelection("a", "around");
+    hasSelections(cm, 0, 0, 0, 1,
+                  0, 2, 0, 3,
+                  0, 4, 0, 5,
+                  2, 1, 2, 2,
+                  2, 3, 2, 4);
+    cm.replaceSelection("xy", "start");
+    hasSelections(cm, 0, 0, 0, 0,
+                  0, 3, 0, 3,
+                  0, 6, 0, 6,
+                  2, 1, 2, 1,
+                  2, 4, 2, 4);
+    cm.replaceSelection("z\nf");
+    hasSelections(cm, 1, 1, 1, 1,
+                  2, 1, 2, 1,
+                  3, 1, 3, 1,
+                  6, 1, 6, 1,
+                  7, 1, 7, 1);
+    eq(cm.getValue(), "z\nfxy2z\nfxy4z\nfxy6\n123456\n1z\nfxy5z\nfxy");
+  });
+
+  function select(cm) {
+    var sels = [];
+    for (var i = 1; i < arguments.length; i++) {
+      var arg = arguments[i];
+      if (arg.head) sels.push(arg);
+      else sels.push({head: arg, anchor: arg});
+    }
+    cm.setSelections(sels, sels.length - 1);
+  }
+
+  testCM("indentSelection", function(cm) {
+    select(cm, Pos(0, 1), Pos(1, 1));
+    cm.indentSelection(4);
+    eq(cm.getValue(), "    foo\n    bar\nbaz");
+
+    select(cm, Pos(0, 2), Pos(0, 3), Pos(0, 4));
+    cm.indentSelection(-2);
+    eq(cm.getValue(), "  foo\n    bar\nbaz");
+
+    select(cm, {anchor: Pos(0, 0), head: Pos(1, 2)},
+           {anchor: Pos(1, 3), head: Pos(2, 0)});
+    cm.indentSelection(-2);
+    eq(cm.getValue(), "foo\n  bar\nbaz");
+  }, {value: "foo\nbar\nbaz"});
+
+  testCM("killLine", function(cm) {
+    select(cm, Pos(0, 1), Pos(0, 2), Pos(1, 1));
+    cm.execCommand("killLine");
+    eq(cm.getValue(), "f\nb\nbaz");
+    cm.execCommand("killLine");
+    eq(cm.getValue(), "fbbaz");
+    cm.setValue("foo\nbar\nbaz");
+    select(cm, Pos(0, 1), {anchor: Pos(0, 2), head: Pos(2, 1)});
+    cm.execCommand("killLine");
+    eq(cm.getValue(), "faz");
+  }, {value: "foo\nbar\nbaz"});
+
+  testCM("deleteLine", function(cm) {
+    select(cm, Pos(0, 0),
+           {head: Pos(0, 1), anchor: Pos(2, 0)},
+           Pos(4, 0));
+    cm.execCommand("deleteLine");
+    eq(cm.getValue(), "4\n6\n7");
+    select(cm, Pos(2, 1));
+    cm.execCommand("deleteLine");
+    eq(cm.getValue(), "4\n6\n");
+  }, {value: "1\n2\n3\n4\n5\n6\n7"});
+
+  testCM("deleteH", function(cm) {
+    select(cm, Pos(0, 4), {anchor: Pos(1, 4), head: Pos(1, 5)});
+    cm.execCommand("delWordAfter");
+    eq(cm.getValue(), "foo bar baz\nabc ef ghi\n");
+    cm.execCommand("delWordAfter");
+    eq(cm.getValue(), "foo  baz\nabc  ghi\n");
+    cm.execCommand("delCharBefore");
+    cm.execCommand("delCharBefore");
+    eq(cm.getValue(), "fo baz\nab ghi\n");
+    select(cm, Pos(0, 3), Pos(0, 4), Pos(0, 5));
+    cm.execCommand("delWordAfter");
+    eq(cm.getValue(), "fo \nab ghi\n");
+  }, {value: "foo bar baz\nabc def ghi\n"});
+
+  testCM("goLineStart", function(cm) {
+    select(cm, Pos(0, 2), Pos(0, 3), Pos(1, 1));
+    cm.execCommand("goLineStart");
+    hasCursors(cm, 0, 0, 1, 0);
+    select(cm, Pos(1, 1), Pos(0, 1));
+    cm.setExtending(true);
+    cm.execCommand("goLineStart");
+    hasSelections(cm, 0, 1, 0, 0,
+                  1, 1, 1, 0);
+  }, {value: "foo\nbar\nbaz"});
+
+  testCM("moveV", function(cm) {
+    select(cm, Pos(0, 2), Pos(1, 2));
+    cm.execCommand("goLineDown");
+    hasCursors(cm, 1, 2, 2, 2);
+    cm.execCommand("goLineUp");
+    hasCursors(cm, 0, 2, 1, 2);
+    cm.execCommand("goLineUp");
+    hasCursors(cm, 0, 0, 0, 2);
+    cm.execCommand("goLineUp");
+    hasCursors(cm, 0, 0);
+    select(cm, Pos(0, 2), Pos(1, 2));
+    cm.setExtending(true);
+    cm.execCommand("goLineDown");
+    hasSelections(cm, 0, 2, 2, 2);
+  }, {value: "12345\n12345\n12345"});
+
+  testCM("moveH", function(cm) {
+    select(cm, Pos(0, 1), Pos(0, 3), Pos(0, 5), Pos(2, 3));
+    cm.execCommand("goCharRight");
+    hasCursors(cm, 0, 2, 0, 4, 1, 0, 2, 4);
+    cm.execCommand("goCharLeft");
+    hasCursors(cm, 0, 1, 0, 3, 0, 5, 2, 3);
+    for (var i = 0; i < 15; i++)
+      cm.execCommand("goCharRight");
+    hasCursors(cm, 2, 4, 2, 5);
+  }, {value: "12345\n12345\n12345"});
+
+  testCM("newlineAndIndent", function(cm) {
+    select(cm, Pos(0, 5), Pos(1, 5));
+    cm.execCommand("newlineAndIndent");
+    hasCursors(cm, 1, 2, 3, 2);
+    eq(cm.getValue(), "x = [\n  1];\ny = [\n  2];");
+    cm.undo();
+    eq(cm.getValue(), "x = [1];\ny = [2];");
+    hasCursors(cm, 0, 5, 1, 5);
+    select(cm, Pos(0, 5), Pos(0, 6));
+    cm.execCommand("newlineAndIndent");
+    hasCursors(cm, 1, 2, 2, 0);
+    eq(cm.getValue(), "x = [\n  1\n];\ny = [2];");
+  }, {value: "x = [1];\ny = [2];", mode: "javascript"});
+
+  testCM("goDocStartEnd", function(cm) {
+    select(cm, Pos(0, 1), Pos(1, 1));
+    cm.execCommand("goDocStart");
+    hasCursors(cm, 0, 0);
+    select(cm, Pos(0, 1), Pos(1, 1));
+    cm.execCommand("goDocEnd");
+    hasCursors(cm, 1, 3);
+    select(cm, Pos(0, 1), Pos(1, 1));
+    cm.setExtending(true);
+    cm.execCommand("goDocEnd");
+    hasSelections(cm, 1, 1, 1, 3);
+  }, {value: "abc\ndef"});
+
+  testCM("selectionHistory", function(cm) {
+    for (var i = 0; i < 3; ++i)
+      cm.addSelection(Pos(0, i * 2), Pos(0, i * 2 + 1));
+    cm.execCommand("undoSelection");
+    eq(cm.getSelection(), "1\n2");
+    cm.execCommand("undoSelection");
+    eq(cm.getSelection(), "1");
+    cm.execCommand("undoSelection");
+    eq(cm.getSelection(), "");
+    eqCharPos(cm.getCursor(), Pos(0, 0));
+    cm.execCommand("redoSelection");
+    eq(cm.getSelection(), "1");
+    cm.execCommand("redoSelection");
+    eq(cm.getSelection(), "1\n2");
+    cm.execCommand("redoSelection");
+    eq(cm.getSelection(), "1\n2\n3");
+  }, {value: "1 2 3"});
+})();
diff --git a/public/codemirror/test/phantom_driver.js b/public/codemirror/test/phantom_driver.js
new file mode 100644
index 000000000..dbad08db6
--- /dev/null
+++ b/public/codemirror/test/phantom_driver.js
@@ -0,0 +1,31 @@
+var page = require('webpage').create();
+
+page.open("http://localhost:3000/test/index.html", function (status) {
+  if (status != "success") {
+    console.log("page couldn't be loaded successfully");
+    phantom.exit(1);
+  }
+  waitFor(function () {
+    return page.evaluate(function () {
+      var output = document.getElementById('status');
+      if (!output) { return false; }
+      return (/^(\d+ failures?|all passed)/i).test(output.innerText);
+    });
+  }, function () {
+    var failed = page.evaluate(function () { return window.failed; });
+    var output = page.evaluate(function () {
+      return document.getElementById('output').innerText + "\n" +
+        document.getElementById('status').innerText;
+    });
+    console.log(output);
+    phantom.exit(failed > 0 ? 1 : 0);
+  });
+});
+
+function waitFor (test, cb) {
+  if (test()) {
+    cb();
+  } else {
+    setTimeout(function () { waitFor(test, cb); }, 250);
+  }
+}
diff --git a/public/codemirror/test/run.js b/public/codemirror/test/run.js
new file mode 100644
index 000000000..54984e73a
--- /dev/null
+++ b/public/codemirror/test/run.js
@@ -0,0 +1,31 @@
+#!/usr/bin/env node
+
+var ok = require("./lint").ok;
+
+var files = new (require('node-static').Server)();
+
+var server = require('http').createServer(function (req, res) {
+  req.addListener('end', function () {
+    files.serve(req, res, function (err/*, result */) {
+      if (err) {
+        console.error(err);
+        process.exit(1);
+      }
+    });
+  }).resume();
+}).addListener('error', function (err) {
+  throw err;
+}).listen(3000, function () {
+  var childProcess = require('child_process');
+  var phantomjs = require("phantomjs-prebuilt");
+  var childArgs = [
+    require("path").join(__dirname, 'phantom_driver.js')
+  ];
+  childProcess.execFile(phantomjs.path, childArgs, function (err, stdout, stderr) {
+    server.close();
+    console.log(stdout);
+    if (err) console.error(err);
+    if (stderr) console.error(stderr);
+    process.exit(err || stderr || !ok ? 1 : 0);
+  });
+});
diff --git a/public/codemirror/test/scroll_test.js b/public/codemirror/test/scroll_test.js
new file mode 100644
index 000000000..55aac78eb
--- /dev/null
+++ b/public/codemirror/test/scroll_test.js
@@ -0,0 +1,115 @@
+(function() {
+  "use strict";
+
+  namespace = "scroll_";
+
+  testCM("bars_hidden", function(cm) {
+    for (var i = 0;; i++) {
+      var wrapBox = cm.getWrapperElement().getBoundingClientRect();
+      var scrollBox = cm.getScrollerElement().getBoundingClientRect();
+      is(wrapBox.bottom < scrollBox.bottom - 10);
+      is(wrapBox.right < scrollBox.right - 10);
+      if (i == 1) break;
+      cm.getWrapperElement().style.height = "auto";
+      cm.refresh();
+    }
+  });
+  
+  function barH(cm) { return byClassName(cm.getWrapperElement(), "CodeMirror-hscrollbar")[0]; }
+  function barV(cm) { return byClassName(cm.getWrapperElement(), "CodeMirror-vscrollbar")[0]; }
+
+  function displayBottom(cm, scrollbar) {
+    if (scrollbar && cm.display.scroller.offsetHeight > cm.display.scroller.clientHeight)
+      return barH(cm).getBoundingClientRect().top;
+    else
+      return cm.getWrapperElement().getBoundingClientRect().bottom - 1;
+  }
+
+  function displayRight(cm, scrollbar) {
+    if (scrollbar && cm.display.scroller.offsetWidth > cm.display.scroller.clientWidth)
+      return barV(cm).getBoundingClientRect().left;
+    else
+      return cm.getWrapperElement().getBoundingClientRect().right - 1;
+  }
+
+  function testMovedownFixed(cm, hScroll) {
+    cm.setSize("100px", "100px");
+    if (hScroll) cm.setValue(new Array(100).join("x"));
+    var bottom = displayBottom(cm, hScroll);
+    for (var i = 0; i < 30; i++) {
+      cm.replaceSelection("x\n");
+      var cursorBottom = cm.cursorCoords(null, "window").bottom;
+      is(cursorBottom <= bottom);
+    }
+    is(cursorBottom >= bottom - 5);
+  }
+
+  testCM("movedown_fixed", function(cm) {testMovedownFixed(cm, false);});
+  testCM("movedown_hscroll_fixed", function(cm) {testMovedownFixed(cm, true);});
+
+  function testMovedownResize(cm, hScroll) {
+    cm.getWrapperElement().style.height = "auto";
+    if (hScroll) cm.setValue(new Array(100).join("x"));
+    cm.refresh();
+    for (var i = 0; i < 30; i++) {
+      cm.replaceSelection("x\n");
+      var bottom = displayBottom(cm, hScroll);
+      var cursorBottom = cm.cursorCoords(null, "window").bottom;
+      is(cursorBottom <= bottom);
+      is(cursorBottom >= bottom - 5);
+    }
+  }
+
+  testCM("movedown_resize", function(cm) {testMovedownResize(cm, false);});
+  testCM("movedown_hscroll_resize", function(cm) {testMovedownResize(cm, true);});
+
+  function testMoveright(cm, wrap, scroll) {
+    cm.setSize("100px", "100px");
+    if (wrap) cm.setOption("lineWrapping", true);
+    if (scroll) {
+      cm.setValue("\n" + new Array(100).join("x\n"));
+      cm.setCursor(Pos(0, 0));
+    }
+    var right = displayRight(cm, scroll);
+    for (var i = 0; i < 10; i++) {
+      cm.replaceSelection("xxxxxxxxxx");
+      var cursorRight = cm.cursorCoords(null, "window").right;
+      is(cursorRight < right);
+    }
+    if (!wrap) is(cursorRight > right - 20);
+  }
+
+  testCM("moveright", function(cm) {testMoveright(cm, false, false);});
+  testCM("moveright_wrap", function(cm) {testMoveright(cm, true, false);});
+  testCM("moveright_scroll", function(cm) {testMoveright(cm, false, true);});
+  testCM("moveright_scroll_wrap", function(cm) {testMoveright(cm, true, true);});
+
+  testCM("suddenly_wide", function(cm) {
+    addDoc(cm, 100, 100);
+    cm.replaceSelection(new Array(600).join("l ") + "\n");
+    cm.execCommand("goLineUp");
+    cm.execCommand("goLineEnd");
+    is(barH(cm).scrollLeft > cm.getScrollerElement().scrollLeft - 1);
+  });
+
+  testCM("wrap_changes_height", function(cm) {
+    var line = new Array(20).join("a ") + "\n";
+    cm.setValue(new Array(20).join(line));
+    var box = cm.getWrapperElement().getBoundingClientRect();
+    cm.setSize(cm.cursorCoords(Pos(0), "window").right - box.left + 2,
+               cm.cursorCoords(Pos(19, 0), "window").bottom - box.top + 2);
+    cm.setCursor(Pos(19, 0));
+    cm.replaceSelection("\n");
+    is(cm.cursorCoords(null, "window").bottom < displayBottom(cm, false));
+  }, {lineWrapping: true});
+
+  testCM("height_auto_with_gutter_expect_no_scroll_after_line_delete", function(cm) {
+    cm.setSize(null, "auto");
+    cm.setValue("x\n");
+    cm.execCommand("goDocEnd");
+    cm.execCommand("delCharBefore");
+    eq(cm.getScrollInfo().top, 0);
+    cm.scrollTo(null, 10);
+    is(cm.getScrollInfo().top < 5);
+  }, {lineNumbers: true});
+})();
diff --git a/public/codemirror/test/search_test.js b/public/codemirror/test/search_test.js
new file mode 100644
index 000000000..9fe898bac
--- /dev/null
+++ b/public/codemirror/test/search_test.js
@@ -0,0 +1,62 @@
+(function() {
+  "use strict";
+
+  function test(name) {
+    var text = Array.prototype.slice.call(arguments, 1, arguments.length - 1).join("\n");
+    var body = arguments[arguments.length - 1];
+    return window.test("search_" + name, function() {
+      body(new CodeMirror.Doc(text));
+    });
+  }
+
+  function run(doc, query, insensitive) {
+    var cursor = doc.getSearchCursor(query, null, insensitive);
+    for (var i = 3; i < arguments.length; i += 4) {
+      var found = cursor.findNext();
+      is(found, "not enough results (forward)");
+      eqCharPos(Pos(arguments[i], arguments[i + 1]), cursor.from(), "from, forward, " + (i - 3) / 4);
+      eqCharPos(Pos(arguments[i + 2], arguments[i + 3]), cursor.to(), "to, forward, " + (i - 3) / 4);
+    }
+    is(!cursor.findNext(), "too many matches (forward)");
+    for (var i = arguments.length - 4; i >= 3; i -= 4) {
+      var found = cursor.findPrevious();
+      is(found, "not enough results (backwards)");
+      eqCharPos(Pos(arguments[i], arguments[i + 1]), cursor.from(), "from, backwards, " + (i - 3) / 4);
+      eqCharPos(Pos(arguments[i + 2], arguments[i + 3]), cursor.to(), "to, backwards, " + (i - 3) / 4);
+    }
+    is(!cursor.findPrevious(), "too many matches (backwards)");
+  }
+
+  test("simple", "abcdefg", "abcdefg", function(doc) {
+    run(doc, "cde", false, 0, 2, 0, 5, 1, 2, 1, 5);
+  });
+
+  test("multiline", "hallo", "goodbye", function(doc) {
+    run(doc, "llo\ngoo", false, 0, 2, 1, 3);
+    run(doc, "blah\nhall", false);
+    run(doc, "bye\neye", false);
+  });
+
+  test("regexp", "abcde", "abcde", function(doc) {
+    run(doc, /bcd/, false, 0, 1, 0, 4, 1, 1, 1, 4);
+    run(doc, /BCD/, false);
+    run(doc, /BCD/i, false, 0, 1, 0, 4, 1, 1, 1, 4);
+  });
+
+  test("insensitive", "hallo", "HALLO", "oink", "hAllO", function(doc) {
+    run(doc, "All", false, 3, 1, 3, 4);
+    run(doc, "All", true, 0, 1, 0, 4, 1, 1, 1, 4, 3, 1, 3, 4);
+  });
+
+  test("multilineInsensitive", "zie ginds komT", "De Stoomboot", "uit Spanje weer aan", function(doc) {
+    run(doc, "komt\nde stoomboot\nuit", false);
+    run(doc, "komt\nde stoomboot\nuit", true, 0, 10, 2, 3);
+    run(doc, "kOMt\ndE stOOmboot\nuiT", true, 0, 10, 2, 3);
+  });
+
+  test("expandingCaseFold", "İİ İİ", "uu uu", function(doc) {
+    if (phantom) return; // A Phantom bug makes this hang
+    run(doc, "", true, 0, 8, 0, 12, 1, 8, 1, 12);
+    run(doc, "İİ", true, 0, 3, 0, 5, 0, 6, 0, 8);
+  });
+})();
diff --git a/public/codemirror/test/sql-hint-test.js b/public/codemirror/test/sql-hint-test.js
new file mode 100644
index 000000000..1094ec03d
--- /dev/null
+++ b/public/codemirror/test/sql-hint-test.js
@@ -0,0 +1,238 @@
+// CodeMirror, copyright (c) by Marijn Haverbeke and others
+// Distributed under an MIT license: http://codemirror.net/LICENSE
+
+(function() {
+  var Pos = CodeMirror.Pos;
+
+  var simpleTables = {
+    "users": ["name", "score", "birthDate"],
+    "xcountries": ["name", "population", "size"]
+  };
+
+  var schemaTables = {
+    "schema.users": ["name", "score", "birthDate"],
+    "schema.countries": ["name", "population", "size"]
+  };
+
+  var displayTextTables = [{
+    text: "mytable",
+    displayText: "mytable | The main table",
+    columns: [{text: "id", displayText: "id | Unique ID"},
+              {text: "name", displayText: "name | The name"}]
+  }];
+
+  namespace = "sql-hint_";
+
+  function test(name, spec) {
+    testCM(name, function(cm) {
+      cm.setValue(spec.value);
+      cm.setCursor(spec.cursor);
+      var completion = CodeMirror.hint.sql(cm, {tables: spec.tables});
+      if (!deepCompare(completion.list, spec.list))
+        throw new Failure("Wrong completion results " + JSON.stringify(completion.list) + " vs " + JSON.stringify(spec.list));
+      eqCharPos(completion.from, spec.from);
+      eqCharPos(completion.to, spec.to);
+    }, {
+      value: spec.value,
+      mode: spec.mode || "text/x-mysql"
+    });
+  }
+
+  test("keywords", {
+    value: "SEL",
+    cursor: Pos(0, 3),
+    list: ["SELECT"],
+    from: Pos(0, 0),
+    to: Pos(0, 3)
+  });
+
+  test("from", {
+    value: "SELECT * fr",
+    cursor: Pos(0, 11),
+    list: ["FROM"],
+    from: Pos(0, 9),
+    to: Pos(0, 11)
+  });
+
+  test("table", {
+    value: "SELECT xc",
+    cursor: Pos(0, 9),
+    tables: simpleTables,
+    list: ["xcountries"],
+    from: Pos(0, 7),
+    to: Pos(0, 9)
+  });
+
+  test("columns", {
+    value: "SELECT users.",
+    cursor: Pos(0, 13),
+    tables: simpleTables,
+    list: ["users.name", "users.score", "users.birthDate"],
+    from: Pos(0, 7),
+    to: Pos(0, 13)
+  });
+
+  test("singlecolumn", {
+    value: "SELECT users.na",
+    cursor: Pos(0, 15),
+    tables: simpleTables,
+    list: ["users.name"],
+    from: Pos(0, 7),
+    to: Pos(0, 15)
+  });
+
+  test("quoted", {
+    value: "SELECT `users`.`na",
+    cursor: Pos(0, 18),
+    tables: simpleTables,
+    list: ["`users`.`name`"],
+    from: Pos(0, 7),
+    to: Pos(0, 18)
+  });
+
+  test("doublequoted", {
+    value: "SELECT \"users\".\"na",
+    cursor: Pos(0, 18),
+    tables: simpleTables,
+    list: ["\"users\".\"name\""],
+    from: Pos(0, 7),
+    to: Pos(0, 18),
+    mode: "text/x-sqlite"
+  });
+
+  test("quotedcolumn", {
+    value: "SELECT users.`na",
+    cursor: Pos(0, 16),
+    tables: simpleTables,
+    list: ["`users`.`name`"],
+    from: Pos(0, 7),
+    to: Pos(0, 16)
+  });
+
+  test("doublequotedcolumn", {
+    value: "SELECT users.\"na",
+    cursor: Pos(0, 16),
+    tables: simpleTables,
+    list: ["\"users\".\"name\""],
+    from: Pos(0, 7),
+    to: Pos(0, 16),
+    mode: "text/x-sqlite"
+  });
+
+  test("schema", {
+    value: "SELECT schem",
+    cursor: Pos(0, 12),
+    tables: schemaTables,
+    list: ["schema.users", "schema.countries",
+           "SCHEMA", "SCHEMA_NAME", "SCHEMAS"],
+    from: Pos(0, 7),
+    to: Pos(0, 12)
+  });
+
+  test("schemaquoted", {
+    value: "SELECT `sch",
+    cursor: Pos(0, 11),
+    tables: schemaTables,
+    list: ["`schema`.`users`", "`schema`.`countries`"],
+    from: Pos(0, 7),
+    to: Pos(0, 11)
+  });
+
+  test("schemadoublequoted", {
+    value: "SELECT \"sch",
+    cursor: Pos(0, 11),
+    tables: schemaTables,
+    list: ["\"schema\".\"users\"", "\"schema\".\"countries\""],
+    from: Pos(0, 7),
+    to: Pos(0, 11),
+    mode: "text/x-sqlite"
+  });
+
+  test("schemacolumn", {
+    value: "SELECT schema.users.",
+    cursor: Pos(0, 20),
+    tables: schemaTables,
+    list: ["schema.users.name",
+           "schema.users.score",
+           "schema.users.birthDate"],
+    from: Pos(0, 7),
+    to: Pos(0, 20)
+  });
+
+  test("schemacolumnquoted", {
+    value: "SELECT `schema`.`users`.",
+    cursor: Pos(0, 24),
+    tables: schemaTables,
+    list: ["`schema`.`users`.`name`",
+           "`schema`.`users`.`score`",
+           "`schema`.`users`.`birthDate`"],
+    from: Pos(0, 7),
+    to: Pos(0, 24)
+  });
+
+  test("schemacolumndoublequoted", {
+    value: "SELECT \"schema\".\"users\".",
+    cursor: Pos(0, 24),
+    tables: schemaTables,
+    list: ["\"schema\".\"users\".\"name\"",
+           "\"schema\".\"users\".\"score\"",
+           "\"schema\".\"users\".\"birthDate\""],
+    from: Pos(0, 7),
+    to: Pos(0, 24),
+    mode: "text/x-sqlite"
+  });
+
+  test("displayText_table", {
+    value: "SELECT myt",
+    cursor: Pos(0, 10),
+    tables: displayTextTables,
+    list: [{text: "mytable", displayText: "mytable | The main table",}],
+    from: Pos(0, 7),
+    to: Pos(0, 10)
+  });
+
+  test("displayText_column", {
+    value: "SELECT mytable.",
+    cursor: Pos(0, 15),
+    tables: displayTextTables,
+    list: [{text: "mytable.id", displayText: "id | Unique ID"},
+           {text: "mytable.name", displayText: "name | The name"}],
+    from: Pos(0, 7),
+    to: Pos(0, 15)
+  });
+
+  test("alias_complete", {
+    value: "SELECT t. FROM users t",
+    cursor: Pos(0, 9),
+    tables: simpleTables,
+    list: ["t.name", "t.score", "t.birthDate"],
+    from: Pos(0, 7),
+    to: Pos(0, 9)
+  });
+
+  test("alias_complete_with_displayText", {
+    value: "SELECT t. FROM mytable t",
+    cursor: Pos(0, 9),
+    tables: displayTextTables,
+    list: [{text: "t.id", displayText: "id | Unique ID"},
+           {text: "t.name", displayText: "name | The name"}],
+    from: Pos(0, 7),
+    to: Pos(0, 9)
+  })
+
+  function deepCompare(a, b) {
+    if (a === b) return true
+    if (!(a && typeof a == "object") ||
+        !(b && typeof b == "object")) return false
+    var array = Array.isArray(a)
+    if (Array.isArray(b) != array) return false
+    if (array) {
+      if (a.length != b.length) return false
+      for (var i = 0; i < a.length; i++) if (!deepCompare(a[i], b[i])) return false
+    } else {
+      for (var p in a) if (!(p in b) || !deepCompare(a[p], b[p])) return false
+      for (var p in b) if (!(p in a)) return false
+    }
+    return true
+  }
+})();
diff --git a/public/codemirror/test/sublime_test.js b/public/codemirror/test/sublime_test.js
new file mode 100644
index 000000000..e9cd342ff
--- /dev/null
+++ b/public/codemirror/test/sublime_test.js
@@ -0,0 +1,307 @@
+(function() {
+  "use strict";
+  
+  var Pos = CodeMirror.Pos;
+  namespace = "sublime_";
+
+  function stTest(name) {
+    var actions = Array.prototype.slice.call(arguments, 1);
+    testCM(name, function(cm) {
+      for (var i = 0; i < actions.length; i++) {
+        var action = actions[i];
+        if (typeof action == "string" && i == 0)
+          cm.setValue(action);
+        else if (typeof action == "string")
+          cm.execCommand(action);
+        else if (action instanceof Pos)
+          cm.setCursor(action);
+        else
+          action(cm);
+      }
+    });
+  }
+
+  function at(line, ch, msg) {
+    return function(cm) {
+      eq(cm.listSelections().length, 1);
+      eqCursorPos(cm.getCursor("head"), Pos(line, ch), msg);
+      eqCursorPos(cm.getCursor("anchor"), Pos(line, ch), msg);
+    };
+  }
+
+  function val(content, msg) {
+    return function(cm) { eq(cm.getValue(), content, msg); };
+  }
+
+  function argsToRanges(args) {
+    if (args.length % 4) throw new Error("Wrong number of arguments for ranges.");
+    var ranges = [];
+    for (var i = 0; i < args.length; i += 4)
+      ranges.push({anchor: Pos(args[i], args[i + 1]),
+                   head: Pos(args[i + 2], args[i + 3])});
+    return ranges;
+  }
+
+  function setSel() {
+    var ranges = argsToRanges(arguments);
+    return function(cm) { cm.setSelections(ranges, 0); };
+  }
+
+  function hasSel() {
+    var ranges = argsToRanges(arguments);
+    return function(cm) {
+      var sels = cm.listSelections();
+      if (sels.length != ranges.length)
+        throw new Failure("Expected " + ranges.length + " selections, but found " + sels.length);
+      for (var i = 0; i < sels.length; i++) {
+        eqCharPos(sels[i].anchor, ranges[i].anchor, "anchor " + i);
+        eqCharPos(sels[i].head, ranges[i].head, "head " + i);
+      }
+    };
+  }
+
+  stTest("bySubword", "the foo_bar DooDahBah \n a",
+         "goSubwordLeft", at(0, 0),
+         "goSubwordRight", at(0, 3),
+         "goSubwordRight", at(0, 7),
+         "goSubwordRight", at(0, 11),
+         "goSubwordRight", at(0, 15),
+         "goSubwordRight", at(0, 18),
+         "goSubwordRight", at(0, 21),
+         "goSubwordRight", at(0, 22),
+         "goSubwordRight", at(1, 0),
+         "goSubwordRight", at(1, 2),
+         "goSubwordRight", at(1, 2),
+         "goSubwordLeft", at(1, 1),
+         "goSubwordLeft", at(1, 0),
+         "goSubwordLeft", at(0, 22),
+         "goSubwordLeft", at(0, 18),
+         "goSubwordLeft", at(0, 15),
+         "goSubwordLeft", at(0, 12),
+         "goSubwordLeft", at(0, 8),
+         "goSubwordLeft", at(0, 4),
+         "goSubwordLeft", at(0, 0));
+
+  stTest("splitSelectionByLine", "abc\ndef\nghi",
+         setSel(0, 1, 2, 2),
+         "splitSelectionByLine",
+         hasSel(0, 1, 0, 3,
+                1, 0, 1, 3,
+                2, 0, 2, 2));
+
+  stTest("splitSelectionByLineMulti", "abc\ndef\nghi\njkl",
+         setSel(0, 1, 1, 1,
+                1, 2, 3, 2,
+                3, 3, 3, 3),
+         "splitSelectionByLine",
+         hasSel(0, 1, 0, 3,
+                1, 0, 1, 1,
+                1, 2, 1, 3,
+                2, 0, 2, 3,
+                3, 0, 3, 2,
+                3, 3, 3, 3));
+
+  stTest("selectLine", "abc\ndef\nghi",
+         setSel(0, 1, 0, 1,
+                2, 0, 2, 1),
+         "selectLine",
+         hasSel(0, 0, 1, 0,
+                2, 0, 2, 3),
+         setSel(0, 1, 1, 0),
+         "selectLine",
+         hasSel(0, 0, 2, 0));
+
+  stTest("insertLineAfter", "abcde\nfghijkl\nmn",
+         setSel(0, 1, 0, 1,
+                0, 3, 0, 3,
+                1, 2, 1, 2,
+                1, 3, 1, 5), "insertLineAfter",
+         hasSel(1, 0, 1, 0,
+                3, 0, 3, 0), val("abcde\n\nfghijkl\n\nmn"));
+
+  stTest("insertLineBefore", "abcde\nfghijkl\nmn",
+         setSel(0, 1, 0, 1,
+                0, 3, 0, 3,
+                1, 2, 1, 2,
+                1, 3, 1, 5), "insertLineBefore",
+         hasSel(0, 0, 0, 0,
+                2, 0, 2, 0), val("\nabcde\n\nfghijkl\nmn"));
+
+  stTest("selectNextOccurrence", "a foo bar\nfoobar foo",
+         setSel(0, 2, 0, 5),
+         "selectNextOccurrence", hasSel(0, 2, 0, 5,
+                                        1, 0, 1, 3),
+         "selectNextOccurrence", hasSel(0, 2, 0, 5,
+                                        1, 0, 1, 3,
+                                        1, 7, 1, 10),
+         "selectNextOccurrence", hasSel(0, 2, 0, 5,
+                                        1, 0, 1, 3,
+                                        1, 7, 1, 10),
+         Pos(0, 3), "selectNextOccurrence", hasSel(0, 2, 0, 5),
+        "selectNextOccurrence", hasSel(0, 2, 0, 5,
+                                       1, 7, 1, 10),
+         setSel(0, 6, 0, 9),
+         "selectNextOccurrence", hasSel(0, 6, 0, 9,
+                                        1, 3, 1, 6));
+
+  stTest("selectScope", "foo(a) {\n  bar[1, 2];\n}",
+         "selectScope", hasSel(0, 0, 2, 1),
+         Pos(0, 4), "selectScope", hasSel(0, 4, 0, 5),
+         Pos(0, 5), "selectScope", hasSel(0, 4, 0, 5),
+         Pos(0, 6), "selectScope", hasSel(0, 0, 2, 1),
+         Pos(0, 8), "selectScope", hasSel(0, 8, 2, 0),
+         Pos(1, 2), "selectScope", hasSel(0, 8, 2, 0),
+         Pos(1, 6), "selectScope", hasSel(1, 6, 1, 10),
+         Pos(1, 9), "selectScope", hasSel(1, 6, 1, 10));
+
+  stTest("goToBracket", "foo(a) {\n  bar[1, 2];\n}",
+         Pos(0, 0), "goToBracket", at(0, 0),
+         Pos(0, 4), "goToBracket", at(0, 5), "goToBracket", at(0, 4),
+         Pos(0, 8), "goToBracket", at(2, 0), "goToBracket", at(0, 8),
+         Pos(1, 2), "goToBracket", at(2, 0),
+         Pos(1, 7), "goToBracket", at(1, 10), "goToBracket", at(1, 6));
+
+  stTest("swapLine", "1\n2\n3---\n4\n5",
+         "swapLineDown", val("2\n1\n3---\n4\n5"),
+         "swapLineUp", val("1\n2\n3---\n4\n5"),
+         "swapLineUp", val("1\n2\n3---\n4\n5"),
+         Pos(4, 1), "swapLineDown", val("1\n2\n3---\n4\n5"),
+         setSel(0, 1, 0, 1,
+                1, 0, 2, 0,
+                2, 2, 2, 2),
+         "swapLineDown", val("4\n1\n2\n3---\n5"),
+         hasSel(1, 1, 1, 1,
+                2, 0, 3, 0,
+                3, 2, 3, 2),
+         "swapLineUp", val("1\n2\n3---\n4\n5"),
+         hasSel(0, 1, 0, 1,
+                1, 0, 2, 0,
+                2, 2, 2, 2));
+
+  stTest("swapLineEmptyBottomSel", "1\n2\n3",
+         setSel(0, 1, 1, 0),
+         "swapLineDown", val("2\n1\n3"), hasSel(1, 1, 2, 0),
+         "swapLineUp", val("1\n2\n3"), hasSel(0, 1, 1, 0),
+         "swapLineUp", val("1\n2\n3"), hasSel(0, 0, 0, 0));
+
+  stTest("swapLineUpFromEnd", "a\nb\nc",
+         Pos(2, 1), "swapLineUp",
+         hasSel(1, 1, 1, 1), val("a\nc\nb"));
+
+  stTest("joinLines", "abc\ndef\nghi\njkl",
+         "joinLines", val("abc def\nghi\njkl"), at(0, 4),
+         "undo",
+         setSel(0, 2, 1, 1), "joinLines",
+         val("abc def ghi\njkl"), hasSel(0, 2, 0, 8),
+         "undo",
+         setSel(0, 1, 0, 1,
+                1, 1, 1, 1,
+                3, 1, 3, 1), "joinLines",
+         val("abc def ghi\njkl"), hasSel(0, 4, 0, 4,
+                                         0, 8, 0, 8,
+                                         1, 3, 1, 3));
+
+  stTest("duplicateLine", "abc\ndef\nghi",
+         Pos(1, 0), "duplicateLine", val("abc\ndef\ndef\nghi"), at(2, 0),
+         "undo",
+         setSel(0, 1, 0, 1,
+                1, 1, 1, 1,
+                2, 1, 2, 1), "duplicateLine",
+         val("abc\nabc\ndef\ndef\nghi\nghi"), hasSel(1, 1, 1, 1,
+                                                     3, 1, 3, 1,
+                                                     5, 1, 5, 1));
+  stTest("duplicateLineSelection", "abcdef",
+         setSel(0, 1, 0, 1,
+                0, 2, 0, 4,
+                0, 5, 0, 5),
+         "duplicateLine",
+         val("abcdef\nabcdcdef\nabcdcdef"), hasSel(2, 1, 2, 1,
+                                                   2, 4, 2, 6,
+                                                   2, 7, 2, 7));
+
+  stTest("selectLinesUpward", "123\n345\n789\n012",
+         setSel(0, 1, 0, 1,
+                1, 1, 1, 3,
+                2, 0, 2, 0,
+                3, 0, 3, 0),
+         "selectLinesUpward",
+         hasSel(0, 1, 0, 1,
+                0, 3, 0, 3,
+                1, 0, 1, 0,
+                1, 1, 1, 3,
+                2, 0, 2, 0,
+                3, 0, 3, 0));
+
+  stTest("selectLinesDownward", "123\n345\n789\n012",
+         setSel(0, 1, 0, 1,
+                1, 1, 1, 3,
+                2, 0, 2, 0,
+                3, 0, 3, 0),
+         "selectLinesDownward",
+         hasSel(0, 1, 0, 1,
+                1, 1, 1, 3,
+                2, 0, 2, 0,
+                2, 3, 2, 3,
+                3, 0, 3, 0));
+
+  stTest("sortLines", "c\nb\na\nC\nB\nA",
+         "sortLines", val("A\nB\nC\na\nb\nc"),
+         "undo",
+         setSel(0, 0, 2, 0,
+                3, 0, 5, 0),
+         "sortLines", val("b\nc\na\nB\nC\nA"),
+         hasSel(0, 0, 2, 0,
+                3, 0, 5, 0),
+         "undo",
+         setSel(1, 0, 5, 0), "sortLinesInsensitive", val("c\na\nB\nb\nC\nA"));
+
+  stTest("bookmarks", "abc\ndef\nghi\njkl",
+         Pos(0, 1), "toggleBookmark",
+         setSel(1, 1, 1, 2), "toggleBookmark",
+         setSel(2, 1, 2, 2), "toggleBookmark",
+         "nextBookmark", hasSel(0, 1, 0, 1),
+         "nextBookmark", hasSel(1, 1, 1, 2),
+         "nextBookmark", hasSel(2, 1, 2, 2),
+         "prevBookmark", hasSel(1, 1, 1, 2),
+         "prevBookmark", hasSel(0, 1, 0, 1),
+         "prevBookmark", hasSel(2, 1, 2, 2),
+         "prevBookmark", hasSel(1, 1, 1, 2),
+         "toggleBookmark",
+         "prevBookmark", hasSel(2, 1, 2, 2),
+         "prevBookmark", hasSel(0, 1, 0, 1),
+         "selectBookmarks", hasSel(0, 1, 0, 1,
+                                   2, 1, 2, 2),
+         "clearBookmarks",
+         Pos(0, 0), "selectBookmarks", at(0, 0));
+
+  stTest("smartBackspace", "  foo\n    bar",
+         setSel(0, 2, 0, 2, 1, 4, 1, 4, 1, 6, 1, 6), "smartBackspace",
+         val("foo\n  br"))
+
+  stTest("upAndDowncaseAtCursor", "abc\ndef  x\nghI",
+         setSel(0, 1, 0, 3,
+                1, 1, 1, 1,
+                1, 4, 1, 4), "upcaseAtCursor",
+         val("aBC\nDEF  x\nghI"), hasSel(0, 1, 0, 3,
+                                         1, 3, 1, 3,
+                                         1, 4, 1, 4),
+         "downcaseAtCursor",
+         val("abc\ndef  x\nghI"), hasSel(0, 1, 0, 3,
+                                         1, 3, 1, 3,
+                                         1, 4, 1, 4));
+
+  stTest("mark", "abc\ndef\nghi",
+         Pos(1, 1), "setSublimeMark",
+         Pos(2, 1), "selectToSublimeMark", hasSel(2, 1, 1, 1),
+         Pos(0, 1), "swapWithSublimeMark", at(1, 1), "swapWithSublimeMark", at(0, 1),
+         "deleteToSublimeMark", val("aef\nghi"),
+         "sublimeYank", val("abc\ndef\nghi"), at(1, 1));
+
+  stTest("findUnder", "foo foobar  a",
+         "findUnder", hasSel(0, 4, 0, 7),
+         "findUnder", hasSel(0, 0, 0, 3),
+         "findUnderPrevious", hasSel(0, 4, 0, 7),
+         "findUnderPrevious", hasSel(0, 0, 0, 3),
+         Pos(0, 4), "findUnder", hasSel(0, 4, 0, 10),
+         Pos(0, 11), "findUnder", hasSel(0, 11, 0, 11));
+})();
diff --git a/public/codemirror/test/test.js b/public/codemirror/test/test.js
new file mode 100644
index 000000000..b9f5aa8c4
--- /dev/null
+++ b/public/codemirror/test/test.js
@@ -0,0 +1,2416 @@
+var Pos = CodeMirror.Pos;
+
+CodeMirror.defaults.rtlMoveVisually = true;
+
+function forEach(arr, f) {
+  for (var i = 0, e = arr.length; i < e; ++i) f(arr[i], i);
+}
+
+function addDoc(cm, width, height) {
+  var content = [], line = "";
+  for (var i = 0; i < width; ++i) line += "x";
+  for (var i = 0; i < height; ++i) content.push(line);
+  cm.setValue(content.join("\n"));
+}
+
+function byClassName(elt, cls) {
+  if (elt.getElementsByClassName) return elt.getElementsByClassName(cls);
+  var found = [], re = new RegExp("\\b" + cls + "\\b");
+  function search(elt) {
+    if (elt.nodeType == 3) return;
+    if (re.test(elt.className)) found.push(elt);
+    for (var i = 0, e = elt.childNodes.length; i < e; ++i)
+      search(elt.childNodes[i]);
+  }
+  search(elt);
+  return found;
+}
+
+var ie_lt8 = /MSIE [1-7]\b/.test(navigator.userAgent);
+var ie_lt9 = /MSIE [1-8]\b/.test(navigator.userAgent);
+var mac = /Mac/.test(navigator.platform);
+var phantom = /PhantomJS/.test(navigator.userAgent);
+var opera = /Opera\/\./.test(navigator.userAgent);
+var opera_version = opera && navigator.userAgent.match(/Version\/(\d+\.\d+)/);
+if (opera_version) opera_version = Number(opera_version);
+var opera_lt10 = opera && (!opera_version || opera_version < 10);
+
+namespace = "core_";
+
+test("core_fromTextArea", function() {
+  var te = document.getElementById("code");
+  te.value = "CONTENT";
+  var cm = CodeMirror.fromTextArea(te);
+  is(!te.offsetHeight);
+  eq(cm.getValue(), "CONTENT");
+  cm.setValue("foo\nbar");
+  eq(cm.getValue(), "foo\nbar");
+  cm.save();
+  is(/^foo\r?\nbar$/.test(te.value));
+  cm.setValue("xxx");
+  cm.toTextArea();
+  is(te.offsetHeight);
+  eq(te.value, "xxx");
+});
+
+testCM("getRange", function(cm) {
+  eq(cm.getLine(0), "1234");
+  eq(cm.getLine(1), "5678");
+  eq(cm.getLine(2), null);
+  eq(cm.getLine(-1), null);
+  eq(cm.getRange(Pos(0, 0), Pos(0, 3)), "123");
+  eq(cm.getRange(Pos(0, -1), Pos(0, 200)), "1234");
+  eq(cm.getRange(Pos(0, 2), Pos(1, 2)), "34\n56");
+  eq(cm.getRange(Pos(1, 2), Pos(100, 0)), "78");
+}, {value: "1234\n5678"});
+
+testCM("replaceRange", function(cm) {
+  eq(cm.getValue(), "");
+  cm.replaceRange("foo\n", Pos(0, 0));
+  eq(cm.getValue(), "foo\n");
+  cm.replaceRange("a\nb", Pos(0, 1));
+  eq(cm.getValue(), "fa\nboo\n");
+  eq(cm.lineCount(), 3);
+  cm.replaceRange("xyzzy", Pos(0, 0), Pos(1, 1));
+  eq(cm.getValue(), "xyzzyoo\n");
+  cm.replaceRange("abc", Pos(0, 0), Pos(10, 0));
+  eq(cm.getValue(), "abc");
+  eq(cm.lineCount(), 1);
+});
+
+testCM("selection", function(cm) {
+  cm.setSelection(Pos(0, 4), Pos(2, 2));
+  is(cm.somethingSelected());
+  eq(cm.getSelection(), "11\n222222\n33");
+  eqCursorPos(cm.getCursor(false), Pos(2, 2));
+  eqCursorPos(cm.getCursor(true), Pos(0, 4));
+  cm.setSelection(Pos(1, 0));
+  is(!cm.somethingSelected());
+  eq(cm.getSelection(), "");
+  eqCursorPos(cm.getCursor(true), Pos(1, 0));
+  cm.replaceSelection("abc", "around");
+  eq(cm.getSelection(), "abc");
+  eq(cm.getValue(), "111111\nabc222222\n333333");
+  cm.replaceSelection("def", "end");
+  eq(cm.getSelection(), "");
+  eqCursorPos(cm.getCursor(true), Pos(1, 3));
+  cm.setCursor(Pos(2, 1));
+  eqCursorPos(cm.getCursor(true), Pos(2, 1));
+  cm.setCursor(1, 2);
+  eqCursorPos(cm.getCursor(true), Pos(1, 2));
+}, {value: "111111\n222222\n333333"});
+
+testCM("extendSelection", function(cm) {
+  cm.setExtending(true);
+  addDoc(cm, 10, 10);
+  cm.setSelection(Pos(3, 5));
+  eqCursorPos(cm.getCursor("head"), Pos(3, 5));
+  eqCursorPos(cm.getCursor("anchor"), Pos(3, 5));
+  cm.setSelection(Pos(2, 5), Pos(5, 5));
+  eqCursorPos(cm.getCursor("head"), Pos(5, 5));
+  eqCursorPos(cm.getCursor("anchor"), Pos(2, 5));
+  eqCursorPos(cm.getCursor("start"), Pos(2, 5));
+  eqCursorPos(cm.getCursor("end"), Pos(5, 5));
+  cm.setSelection(Pos(5, 5), Pos(2, 5));
+  eqCursorPos(cm.getCursor("head"), Pos(2, 5));
+  eqCursorPos(cm.getCursor("anchor"), Pos(5, 5));
+  eqCursorPos(cm.getCursor("start"), Pos(2, 5));
+  eqCursorPos(cm.getCursor("end"), Pos(5, 5));
+  cm.extendSelection(Pos(3, 2));
+  eqCursorPos(cm.getCursor("head"), Pos(3, 2));
+  eqCursorPos(cm.getCursor("anchor"), Pos(5, 5));
+  cm.extendSelection(Pos(6, 2));
+  eqCursorPos(cm.getCursor("head"), Pos(6, 2));
+  eqCursorPos(cm.getCursor("anchor"), Pos(5, 5));
+  cm.extendSelection(Pos(6, 3), Pos(6, 4));
+  eqCursorPos(cm.getCursor("head"), Pos(6, 4));
+  eqCursorPos(cm.getCursor("anchor"), Pos(5, 5));
+  cm.extendSelection(Pos(0, 3), Pos(0, 4));
+  eqCursorPos(cm.getCursor("head"), Pos(0, 3));
+  eqCursorPos(cm.getCursor("anchor"), Pos(5, 5));
+  cm.extendSelection(Pos(4, 5), Pos(6, 5));
+  eqCursorPos(cm.getCursor("head"), Pos(6, 5));
+  eqCursorPos(cm.getCursor("anchor"), Pos(4, 5));
+  cm.setExtending(false);
+  cm.extendSelection(Pos(0, 3), Pos(0, 4));
+  eqCursorPos(cm.getCursor("head"), Pos(0, 3));
+  eqCursorPos(cm.getCursor("anchor"), Pos(0, 4));
+});
+
+testCM("lines", function(cm) {
+  eq(cm.getLine(0), "111111");
+  eq(cm.getLine(1), "222222");
+  eq(cm.getLine(-1), null);
+  cm.replaceRange("", Pos(1, 0), Pos(2, 0))
+  cm.replaceRange("abc", Pos(1, 0), Pos(1));
+  eq(cm.getValue(), "111111\nabc");
+}, {value: "111111\n222222\n333333"});
+
+testCM("indent", function(cm) {
+  cm.indentLine(1);
+  eq(cm.getLine(1), "   blah();");
+  cm.setOption("indentUnit", 8);
+  cm.indentLine(1);
+  eq(cm.getLine(1), "\tblah();");
+  cm.setOption("indentUnit", 10);
+  cm.setOption("tabSize", 4);
+  cm.indentLine(1);
+  eq(cm.getLine(1), "\t\t  blah();");
+}, {value: "if (x) {\nblah();\n}", indentUnit: 3, indentWithTabs: true, tabSize: 8});
+
+testCM("indentByNumber", function(cm) {
+  cm.indentLine(0, 2);
+  eq(cm.getLine(0), "  foo");
+  cm.indentLine(0, -200);
+  eq(cm.getLine(0), "foo");
+  cm.setSelection(Pos(0, 0), Pos(1, 2));
+  cm.indentSelection(3);
+  eq(cm.getValue(), "   foo\n   bar\nbaz");
+}, {value: "foo\nbar\nbaz"});
+
+test("core_defaults", function() {
+  var defsCopy = {}, defs = CodeMirror.defaults;
+  for (var opt in defs) defsCopy[opt] = defs[opt];
+  defs.indentUnit = 5;
+  defs.value = "uu";
+  defs.indentWithTabs = true;
+  defs.tabindex = 55;
+  var place = document.getElementById("testground"), cm = CodeMirror(place);
+  try {
+    eq(cm.getOption("indentUnit"), 5);
+    cm.setOption("indentUnit", 10);
+    eq(defs.indentUnit, 5);
+    eq(cm.getValue(), "uu");
+    eq(cm.getOption("indentWithTabs"), true);
+    eq(cm.getInputField().tabIndex, 55);
+  }
+  finally {
+    for (var opt in defsCopy) defs[opt] = defsCopy[opt];
+    place.removeChild(cm.getWrapperElement());
+  }
+});
+
+testCM("lineInfo", function(cm) {
+  eq(cm.lineInfo(-1), null);
+  var mark = document.createElement("span");
+  var lh = cm.setGutterMarker(1, "FOO", mark);
+  var info = cm.lineInfo(1);
+  eq(info.text, "222222");
+  eq(info.gutterMarkers.FOO, mark);
+  eq(info.line, 1);
+  eq(cm.lineInfo(2).gutterMarkers, null);
+  cm.setGutterMarker(lh, "FOO", null);
+  eq(cm.lineInfo(1).gutterMarkers, null);
+  cm.setGutterMarker(1, "FOO", mark);
+  cm.setGutterMarker(0, "FOO", mark);
+  cm.clearGutter("FOO");
+  eq(cm.lineInfo(0).gutterMarkers, null);
+  eq(cm.lineInfo(1).gutterMarkers, null);
+}, {value: "111111\n222222\n333333"});
+
+testCM("coords", function(cm) {
+  cm.setSize(null, 100);
+  addDoc(cm, 32, 200);
+  var top = cm.charCoords(Pos(0, 0));
+  var bot = cm.charCoords(Pos(200, 30));
+  is(top.left < bot.left);
+  is(top.top < bot.top);
+  is(top.top < top.bottom);
+  cm.scrollTo(null, 100);
+  var top2 = cm.charCoords(Pos(0, 0));
+  is(top.top > top2.top);
+  eq(top.left, top2.left);
+});
+
+testCM("coordsChar", function(cm) {
+  addDoc(cm, 35, 70);
+  for (var i = 0; i < 2; ++i) {
+    var sys = i ? "local" : "page";
+    for (var ch = 0; ch <= 35; ch += 5) {
+      for (var line = 0; line < 70; line += 5) {
+        cm.setCursor(line, ch);
+        var coords = cm.charCoords(Pos(line, ch), sys);
+        var pos = cm.coordsChar({left: coords.left + 1, top: coords.top + 1}, sys);
+        eqCharPos(pos, Pos(line, ch));
+      }
+    }
+  }
+}, {lineNumbers: true});
+
+testCM("posFromIndex", function(cm) {
+  cm.setValue(
+    "This function should\n" +
+    "convert a zero based index\n" +
+    "to line and ch."
+  );
+
+  var examples = [
+    { index: -1, line: 0, ch: 0  }, // <- Tests clipping
+    { index: 0,  line: 0, ch: 0  },
+    { index: 10, line: 0, ch: 10 },
+    { index: 39, line: 1, ch: 18 },
+    { index: 55, line: 2, ch: 7  },
+    { index: 63, line: 2, ch: 15 },
+    { index: 64, line: 2, ch: 15 }  // <- Tests clipping
+  ];
+
+  for (var i = 0; i < examples.length; i++) {
+    var example = examples[i];
+    var pos = cm.posFromIndex(example.index);
+    eq(pos.line, example.line);
+    eq(pos.ch, example.ch);
+    if (example.index >= 0 && example.index < 64)
+      eq(cm.indexFromPos(pos), example.index);
+  }
+});
+
+testCM("undo", function(cm) {
+  cm.replaceRange("def", Pos(0, 0), Pos(0));
+  eq(cm.historySize().undo, 1);
+  cm.undo();
+  eq(cm.getValue(), "abc");
+  eq(cm.historySize().undo, 0);
+  eq(cm.historySize().redo, 1);
+  cm.redo();
+  eq(cm.getValue(), "def");
+  eq(cm.historySize().undo, 1);
+  eq(cm.historySize().redo, 0);
+  cm.setValue("1\n\n\n2");
+  cm.clearHistory();
+  eq(cm.historySize().undo, 0);
+  for (var i = 0; i < 20; ++i) {
+    cm.replaceRange("a", Pos(0, 0));
+    cm.replaceRange("b", Pos(3, 0));
+  }
+  eq(cm.historySize().undo, 40);
+  for (var i = 0; i < 40; ++i)
+    cm.undo();
+  eq(cm.historySize().redo, 40);
+  eq(cm.getValue(), "1\n\n\n2");
+}, {value: "abc"});
+
+testCM("undoDepth", function(cm) {
+  cm.replaceRange("d", Pos(0));
+  cm.replaceRange("e", Pos(0));
+  cm.replaceRange("f", Pos(0));
+  cm.undo(); cm.undo(); cm.undo();
+  eq(cm.getValue(), "abcd");
+}, {value: "abc", undoDepth: 4});
+
+testCM("undoDoesntClearValue", function(cm) {
+  cm.undo();
+  eq(cm.getValue(), "x");
+}, {value: "x"});
+
+testCM("undoMultiLine", function(cm) {
+  cm.operation(function() {
+    cm.replaceRange("x", Pos(0, 0));
+    cm.replaceRange("y", Pos(1, 0));
+  });
+  cm.undo();
+  eq(cm.getValue(), "abc\ndef\nghi");
+  cm.operation(function() {
+    cm.replaceRange("y", Pos(1, 0));
+    cm.replaceRange("x", Pos(0, 0));
+  });
+  cm.undo();
+  eq(cm.getValue(), "abc\ndef\nghi");
+  cm.operation(function() {
+    cm.replaceRange("y", Pos(2, 0));
+    cm.replaceRange("x", Pos(1, 0));
+    cm.replaceRange("z", Pos(2, 0));
+  });
+  cm.undo();
+  eq(cm.getValue(), "abc\ndef\nghi", 3);
+}, {value: "abc\ndef\nghi"});
+
+testCM("undoComposite", function(cm) {
+  cm.replaceRange("y", Pos(1));
+  cm.operation(function() {
+    cm.replaceRange("x", Pos(0));
+    cm.replaceRange("z", Pos(2));
+  });
+  eq(cm.getValue(), "ax\nby\ncz\n");
+  cm.undo();
+  eq(cm.getValue(), "a\nby\nc\n");
+  cm.undo();
+  eq(cm.getValue(), "a\nb\nc\n");
+  cm.redo(); cm.redo();
+  eq(cm.getValue(), "ax\nby\ncz\n");
+}, {value: "a\nb\nc\n"});
+
+testCM("undoSelection", function(cm) {
+  cm.setSelection(Pos(0, 2), Pos(0, 4));
+  cm.replaceSelection("");
+  cm.setCursor(Pos(1, 0));
+  cm.undo();
+  eqCursorPos(cm.getCursor(true), Pos(0, 2));
+  eqCursorPos(cm.getCursor(false), Pos(0, 4));
+  cm.setCursor(Pos(1, 0));
+  cm.redo();
+  eqCursorPos(cm.getCursor(true), Pos(0, 2));
+  eqCursorPos(cm.getCursor(false), Pos(0, 2));
+}, {value: "abcdefgh\n"});
+
+testCM("undoSelectionAsBefore", function(cm) {
+  cm.replaceSelection("abc", "around");
+  cm.undo();
+  cm.redo();
+  eq(cm.getSelection(), "abc");
+});
+
+testCM("selectionChangeConfusesHistory", function(cm) {
+  cm.replaceSelection("abc", null, "dontmerge");
+  cm.operation(function() {
+    cm.setCursor(Pos(0, 0));
+    cm.replaceSelection("abc", null, "dontmerge");
+  });
+  eq(cm.historySize().undo, 2);
+});
+
+testCM("markTextSingleLine", function(cm) {
+  forEach([{a: 0, b: 1, c: "", f: 2, t: 5},
+           {a: 0, b: 4, c: "", f: 0, t: 2},
+           {a: 1, b: 2, c: "x", f: 3, t: 6},
+           {a: 4, b: 5, c: "", f: 3, t: 5},
+           {a: 4, b: 5, c: "xx", f: 3, t: 7},
+           {a: 2, b: 5, c: "", f: 2, t: 3},
+           {a: 2, b: 5, c: "abcd", f: 6, t: 7},
+           {a: 2, b: 6, c: "x", f: null, t: null},
+           {a: 3, b: 6, c: "", f: null, t: null},
+           {a: 0, b: 9, c: "hallo", f: null, t: null},
+           {a: 4, b: 6, c: "x", f: 3, t: 4},
+           {a: 4, b: 8, c: "", f: 3, t: 4},
+           {a: 6, b: 6, c: "a", f: 3, t: 6},
+           {a: 8, b: 9, c: "", f: 3, t: 6}], function(test) {
+    cm.setValue("1234567890");
+    var r = cm.markText(Pos(0, 3), Pos(0, 6), {className: "foo"});
+    cm.replaceRange(test.c, Pos(0, test.a), Pos(0, test.b));
+    var f = r.find();
+    eq(f && f.from.ch, test.f); eq(f && f.to.ch, test.t);
+  });
+});
+
+testCM("markTextMultiLine", function(cm) {
+  function p(v) { return v && Pos(v[0], v[1]); }
+  forEach([{a: [0, 0], b: [0, 5], c: "", f: [0, 0], t: [2, 5]},
+           {a: [0, 0], b: [0, 5], c: "foo\n", f: [1, 0], t: [3, 5]},
+           {a: [0, 1], b: [0, 10], c: "", f: [0, 1], t: [2, 5]},
+           {a: [0, 5], b: [0, 6], c: "x", f: [0, 6], t: [2, 5]},
+           {a: [0, 0], b: [1, 0], c: "", f: [0, 0], t: [1, 5]},
+           {a: [0, 6], b: [2, 4], c: "", f: [0, 5], t: [0, 7]},
+           {a: [0, 6], b: [2, 4], c: "aa", f: [0, 5], t: [0, 9]},
+           {a: [1, 2], b: [1, 8], c: "", f: [0, 5], t: [2, 5]},
+           {a: [0, 5], b: [2, 5], c: "xx", f: null, t: null},
+           {a: [0, 0], b: [2, 10], c: "x", f: null, t: null},
+           {a: [1, 5], b: [2, 5], c: "", f: [0, 5], t: [1, 5]},
+           {a: [2, 0], b: [2, 3], c: "", f: [0, 5], t: [2, 2]},
+           {a: [2, 5], b: [3, 0], c: "a\nb", f: [0, 5], t: [2, 5]},
+           {a: [2, 3], b: [3, 0], c: "x", f: [0, 5], t: [2, 3]},
+           {a: [1, 1], b: [1, 9], c: "1\n2\n3", f: [0, 5], t: [4, 5]}], function(test) {
+    cm.setValue("aaaaaaaaaa\nbbbbbbbbbb\ncccccccccc\ndddddddd\n");
+    var r = cm.markText(Pos(0, 5), Pos(2, 5),
+                        {className: "CodeMirror-matchingbracket"});
+    cm.replaceRange(test.c, p(test.a), p(test.b));
+    var f = r.find();
+    eqCursorPos(f && f.from, p(test.f)); eqCursorPos(f && f.to, p(test.t));
+  });
+});
+
+testCM("markTextUndo", function(cm) {
+  var marker1, marker2, bookmark;
+  marker1 = cm.markText(Pos(0, 1), Pos(0, 3),
+                        {className: "CodeMirror-matchingbracket"});
+  marker2 = cm.markText(Pos(0, 0), Pos(2, 1),
+                        {className: "CodeMirror-matchingbracket"});
+  bookmark = cm.setBookmark(Pos(1, 5));
+  cm.operation(function(){
+    cm.replaceRange("foo", Pos(0, 2));
+    cm.replaceRange("bar\nbaz\nbug\n", Pos(2, 0), Pos(3, 0));
+  });
+  var v1 = cm.getValue();
+  cm.setValue("");
+  eq(marker1.find(), null); eq(marker2.find(), null); eq(bookmark.find(), null);
+  cm.undo();
+  eqCursorPos(bookmark.find(), Pos(1, 5), "still there");
+  cm.undo();
+  var m1Pos = marker1.find(), m2Pos = marker2.find();
+  eqCursorPos(m1Pos.from, Pos(0, 1)); eqCursorPos(m1Pos.to, Pos(0, 3));
+  eqCursorPos(m2Pos.from, Pos(0, 0)); eqCursorPos(m2Pos.to, Pos(2, 1));
+  eqCursorPos(bookmark.find(), Pos(1, 5));
+  cm.redo(); cm.redo();
+  eq(bookmark.find(), null);
+  cm.undo();
+  eqCursorPos(bookmark.find(), Pos(1, 5));
+  eq(cm.getValue(), v1);
+}, {value: "1234\n56789\n00\n"});
+
+testCM("markTextStayGone", function(cm) {
+  var m1 = cm.markText(Pos(0, 0), Pos(0, 1));
+  cm.replaceRange("hi", Pos(0, 2));
+  m1.clear();
+  cm.undo();
+  eq(m1.find(), null);
+}, {value: "hello"});
+
+testCM("markTextAllowEmpty", function(cm) {
+  var m1 = cm.markText(Pos(0, 1), Pos(0, 2), {clearWhenEmpty: false});
+  is(m1.find());
+  cm.replaceRange("x", Pos(0, 0));
+  is(m1.find());
+  cm.replaceRange("y", Pos(0, 2));
+  is(m1.find());
+  cm.replaceRange("z", Pos(0, 3), Pos(0, 4));
+  is(!m1.find());
+  var m2 = cm.markText(Pos(0, 1), Pos(0, 2), {clearWhenEmpty: false,
+                                              inclusiveLeft: true,
+                                              inclusiveRight: true});
+  cm.replaceRange("q", Pos(0, 1), Pos(0, 2));
+  is(m2.find());
+  cm.replaceRange("", Pos(0, 0), Pos(0, 3));
+  is(!m2.find());
+  var m3 = cm.markText(Pos(0, 1), Pos(0, 1), {clearWhenEmpty: false});
+  cm.replaceRange("a", Pos(0, 3));
+  is(m3.find());
+  cm.replaceRange("b", Pos(0, 1));
+  is(!m3.find());
+}, {value: "abcde"});
+
+testCM("markTextStacked", function(cm) {
+  var m1 = cm.markText(Pos(0, 0), Pos(0, 0), {clearWhenEmpty: false});
+  var m2 = cm.markText(Pos(0, 0), Pos(0, 0), {clearWhenEmpty: false});
+  cm.replaceRange("B", Pos(0, 1));
+  is(m1.find() && m2.find());
+}, {value: "A"});
+
+testCM("undoPreservesNewMarks", function(cm) {
+  cm.markText(Pos(0, 3), Pos(0, 4));
+  cm.markText(Pos(1, 1), Pos(1, 3));
+  cm.replaceRange("", Pos(0, 3), Pos(3, 1));
+  var mBefore = cm.markText(Pos(0, 0), Pos(0, 1));
+  var mAfter = cm.markText(Pos(0, 5), Pos(0, 6));
+  var mAround = cm.markText(Pos(0, 2), Pos(0, 4));
+  cm.undo();
+  eqCursorPos(mBefore.find().from, Pos(0, 0));
+  eqCursorPos(mBefore.find().to, Pos(0, 1));
+  eqCursorPos(mAfter.find().from, Pos(3, 3));
+  eqCursorPos(mAfter.find().to, Pos(3, 4));
+  eqCursorPos(mAround.find().from, Pos(0, 2));
+  eqCursorPos(mAround.find().to, Pos(3, 2));
+  var found = cm.findMarksAt(Pos(2, 2));
+  eq(found.length, 1);
+  eq(found[0], mAround);
+}, {value: "aaaa\nbbbb\ncccc\ndddd"});
+
+testCM("markClearBetween", function(cm) {
+  cm.setValue("aaa\nbbb\nccc\nddd\n");
+  cm.markText(Pos(0, 0), Pos(2));
+  cm.replaceRange("aaa\nbbb\nccc", Pos(0, 0), Pos(2));
+  eq(cm.findMarksAt(Pos(1, 1)).length, 0);
+});
+
+testCM("findMarksMiddle", function(cm) {
+  var mark = cm.markText(Pos(1, 1), Pos(3, 1));
+  var found = cm.findMarks(Pos(2, 1), Pos(2, 2));
+  eq(found.length, 1);
+  eq(found[0], mark);
+}, {value: "line 0\nline 1\nline 2\nline 3"});
+
+testCM("deleteSpanCollapsedInclusiveLeft", function(cm) {
+  var from = Pos(1, 0), to = Pos(1, 1);
+  var m = cm.markText(from, to, {collapsed: true, inclusiveLeft: true});
+  // Delete collapsed span.
+  cm.replaceRange("", from, to);
+}, {value: "abc\nX\ndef"});
+
+testCM("markTextCSS", function(cm) {
+  function present() {
+    var spans = cm.display.lineDiv.getElementsByTagName("span");
+    for (var i = 0; i < spans.length; i++)
+      if (spans[i].style.color == "cyan" && span[i].textContent == "cdefg") return true;
+  }
+  var m = cm.markText(Pos(0, 2), Pos(0, 6), {css: "color: cyan"});
+  m.clear();
+  is(!present());
+}, {value: "abcdefgh"});
+
+testCM("bookmark", function(cm) {
+  function p(v) { return v && Pos(v[0], v[1]); }
+  forEach([{a: [1, 0], b: [1, 1], c: "", d: [1, 4]},
+           {a: [1, 1], b: [1, 1], c: "xx", d: [1, 7]},
+           {a: [1, 4], b: [1, 5], c: "ab", d: [1, 6]},
+           {a: [1, 4], b: [1, 6], c: "", d: null},
+           {a: [1, 5], b: [1, 6], c: "abc", d: [1, 5]},
+           {a: [1, 6], b: [1, 8], c: "", d: [1, 5]},
+           {a: [1, 4], b: [1, 4], c: "\n\n", d: [3, 1]},
+           {bm: [1, 9], a: [1, 1], b: [1, 1], c: "\n", d: [2, 8]}], function(test) {
+    cm.setValue("1234567890\n1234567890\n1234567890");
+    var b = cm.setBookmark(p(test.bm) || Pos(1, 5));
+    cm.replaceRange(test.c, p(test.a), p(test.b));
+    eqCursorPos(b.find(), p(test.d));
+  });
+});
+
+testCM("bookmarkInsertLeft", function(cm) {
+  var br = cm.setBookmark(Pos(0, 2), {insertLeft: false});
+  var bl = cm.setBookmark(Pos(0, 2), {insertLeft: true});
+  cm.setCursor(Pos(0, 2));
+  cm.replaceSelection("hi");
+  eqCursorPos(br.find(), Pos(0, 2));
+  eqCursorPos(bl.find(), Pos(0, 4));
+  cm.replaceRange("", Pos(0, 4), Pos(0, 5));
+  cm.replaceRange("", Pos(0, 2), Pos(0, 4));
+  cm.replaceRange("", Pos(0, 1), Pos(0, 2));
+  // Verify that deleting next to bookmarks doesn't kill them
+  eqCursorPos(br.find(), Pos(0, 1));
+  eqCursorPos(bl.find(), Pos(0, 1));
+}, {value: "abcdef"});
+
+testCM("bookmarkCursor", function(cm) {
+  var pos01 = cm.cursorCoords(Pos(0, 1)), pos11 = cm.cursorCoords(Pos(1, 1)),
+      pos20 = cm.cursorCoords(Pos(2, 0)), pos30 = cm.cursorCoords(Pos(3, 0)),
+      pos41 = cm.cursorCoords(Pos(4, 1));
+  cm.setBookmark(Pos(0, 1), {widget: document.createTextNode("←"), insertLeft: true});
+  cm.setBookmark(Pos(2, 0), {widget: document.createTextNode("←"), insertLeft: true});
+  cm.setBookmark(Pos(1, 1), {widget: document.createTextNode("→")});
+  cm.setBookmark(Pos(3, 0), {widget: document.createTextNode("→")});
+  var new01 = cm.cursorCoords(Pos(0, 1)), new11 = cm.cursorCoords(Pos(1, 1)),
+      new20 = cm.cursorCoords(Pos(2, 0)), new30 = cm.cursorCoords(Pos(3, 0));
+  near(new01.left, pos01.left, 1);
+  near(new01.top, pos01.top, 1);
+  is(new11.left > pos11.left, "at right, middle of line");
+  near(new11.top == pos11.top, 1);
+  near(new20.left, pos20.left, 1);
+  near(new20.top, pos20.top, 1);
+  is(new30.left > pos30.left, "at right, empty line");
+  near(new30.top, pos30, 1);
+  cm.setBookmark(Pos(4, 0), {widget: document.createTextNode("→")});
+  is(cm.cursorCoords(Pos(4, 1)).left > pos41.left, "single-char bug");
+}, {value: "foo\nbar\n\n\nx\ny"});
+
+testCM("multiBookmarkCursor", function(cm) {
+  if (phantom) return;
+  var ms = [], m;
+  function add(insertLeft) {
+    for (var i = 0; i < 3; ++i) {
+      var node = document.createElement("span");
+      node.innerHTML = "X";
+      ms.push(cm.setBookmark(Pos(0, 1), {widget: node, insertLeft: insertLeft}));
+    }
+  }
+  var base1 = cm.cursorCoords(Pos(0, 1)).left, base4 = cm.cursorCoords(Pos(0, 4)).left;
+  add(true);
+  near(base1, cm.cursorCoords(Pos(0, 1)).left, 1);
+  while (m = ms.pop()) m.clear();
+  add(false);
+  near(base4, cm.cursorCoords(Pos(0, 1)).left, 1);
+}, {value: "abcdefg"});
+
+testCM("getAllMarks", function(cm) {
+  addDoc(cm, 10, 10);
+  var m1 = cm.setBookmark(Pos(0, 2));
+  var m2 = cm.markText(Pos(0, 2), Pos(3, 2));
+  var m3 = cm.markText(Pos(1, 2), Pos(1, 8));
+  var m4 = cm.markText(Pos(8, 0), Pos(9, 0));
+  eq(cm.getAllMarks().length, 4);
+  m1.clear();
+  m3.clear();
+  eq(cm.getAllMarks().length, 2);
+});
+
+testCM("setValueClears", function(cm) {
+  cm.addLineClass(0, "wrap", "foo");
+  var mark = cm.markText(Pos(0, 0), Pos(1, 1), {inclusiveLeft: true, inclusiveRight: true});
+  cm.setValue("foo");
+  is(!cm.lineInfo(0).wrapClass);
+  is(!mark.find());
+}, {value: "a\nb"});
+
+testCM("bug577", function(cm) {
+  cm.setValue("a\nb");
+  cm.clearHistory();
+  cm.setValue("fooooo");
+  cm.undo();
+});
+
+testCM("scrollSnap", function(cm) {
+  cm.setSize(100, 100);
+  addDoc(cm, 200, 200);
+  cm.setCursor(Pos(100, 180));
+  var info = cm.getScrollInfo();
+  is(info.left > 0 && info.top > 0);
+  cm.setCursor(Pos(0, 0));
+  info = cm.getScrollInfo();
+  is(info.left == 0 && info.top == 0, "scrolled clean to top");
+  cm.setCursor(Pos(100, 180));
+  cm.setCursor(Pos(199, 0));
+  info = cm.getScrollInfo();
+  is(info.left == 0 && info.top + 2 > info.height - cm.getScrollerElement().clientHeight, "scrolled clean to bottom");
+});
+
+testCM("scrollIntoView", function(cm) {
+  if (phantom) return;
+  var outer = cm.getWrapperElement().getBoundingClientRect();
+  function test(line, ch, msg) {
+    var pos = Pos(line, ch);
+    cm.scrollIntoView(pos);
+    var box = cm.charCoords(pos, "window");
+    is(box.left >= outer.left, msg + " (left)");
+    is(box.right <= outer.right, msg + " (right)");
+    is(box.top >= outer.top, msg + " (top)");
+    is(box.bottom <= outer.bottom, msg + " (bottom)");
+  }
+  addDoc(cm, 200, 200);
+  test(199, 199, "bottom right");
+  test(0, 0, "top left");
+  test(100, 100, "center");
+  test(199, 0, "bottom left");
+  test(0, 199, "top right");
+  test(100, 100, "center again");
+});
+
+testCM("scrollBackAndForth", function(cm) {
+  addDoc(cm, 1, 200);
+  cm.operation(function() {
+    cm.scrollIntoView(Pos(199, 0));
+    cm.scrollIntoView(Pos(4, 0));
+  });
+  is(cm.getScrollInfo().top > 0);
+});
+
+testCM("selectAllNoScroll", function(cm) {
+  addDoc(cm, 1, 200);
+  cm.execCommand("selectAll");
+  eq(cm.getScrollInfo().top, 0);
+  cm.setCursor(199);
+  cm.execCommand("selectAll");
+  is(cm.getScrollInfo().top > 0);
+});
+
+testCM("selectionPos", function(cm) {
+  if (phantom || cm.getOption("inputStyle") != "textarea") return;
+  cm.setSize(100, 100);
+  addDoc(cm, 200, 100);
+  cm.setSelection(Pos(1, 100), Pos(98, 100));
+  var lineWidth = cm.charCoords(Pos(0, 200), "local").left;
+  var lineHeight = (cm.charCoords(Pos(99)).top - cm.charCoords(Pos(0)).top) / 100;
+  cm.scrollTo(0, 0);
+  var selElt = byClassName(cm.getWrapperElement(), "CodeMirror-selected");
+  var outer = cm.getWrapperElement().getBoundingClientRect();
+  var sawMiddle, sawTop, sawBottom;
+  for (var i = 0, e = selElt.length; i < e; ++i) {
+    var box = selElt[i].getBoundingClientRect();
+    var atLeft = box.left - outer.left < 30;
+    var width = box.right - box.left;
+    var atRight = box.right - outer.left > .8 * lineWidth;
+    if (atLeft && atRight) {
+      sawMiddle = true;
+      is(box.bottom - box.top > 90 * lineHeight, "middle high");
+      is(width > .9 * lineWidth, "middle wide");
+    } else {
+      is(width > .4 * lineWidth, "top/bot wide enough");
+      is(width < .6 * lineWidth, "top/bot slim enough");
+      if (atLeft) {
+        sawBottom = true;
+        is(box.top - outer.top > 96 * lineHeight, "bot below");
+      } else if (atRight) {
+        sawTop = true;
+        is(box.top - outer.top < 2.1 * lineHeight, "top above");
+      }
+    }
+  }
+  is(sawTop && sawBottom && sawMiddle, "all parts");
+}, null);
+
+testCM("restoreHistory", function(cm) {
+  cm.setValue("abc\ndef");
+  cm.replaceRange("hello", Pos(1, 0), Pos(1));
+  cm.replaceRange("goop", Pos(0, 0), Pos(0));
+  cm.undo();
+  var storedVal = cm.getValue(), storedHist = cm.getHistory();
+  if (window.JSON) storedHist = JSON.parse(JSON.stringify(storedHist));
+  eq(storedVal, "abc\nhello");
+  cm.setValue("");
+  cm.clearHistory();
+  eq(cm.historySize().undo, 0);
+  cm.setValue(storedVal);
+  cm.setHistory(storedHist);
+  cm.redo();
+  eq(cm.getValue(), "goop\nhello");
+  cm.undo(); cm.undo();
+  eq(cm.getValue(), "abc\ndef");
+});
+
+testCM("doubleScrollbar", function(cm) {
+  var dummy = document.body.appendChild(document.createElement("p"));
+  dummy.style.cssText = "height: 50px; overflow: scroll; width: 50px";
+  var scrollbarWidth = dummy.offsetWidth + 1 - dummy.clientWidth;
+  document.body.removeChild(dummy);
+  if (scrollbarWidth < 2) return;
+  cm.setSize(null, 100);
+  addDoc(cm, 1, 300);
+  var wrap = cm.getWrapperElement();
+  is(wrap.offsetWidth - byClassName(wrap, "CodeMirror-lines")[0].offsetWidth <= scrollbarWidth * 1.5);
+});
+
+testCM("weirdLinebreaks", function(cm) {
+  cm.setValue("foo\nbar\rbaz\r\nquux\n\rplop");
+  is(cm.getValue(), "foo\nbar\nbaz\nquux\n\nplop");
+  is(cm.lineCount(), 6);
+  cm.setValue("\n\n");
+  is(cm.lineCount(), 3);
+});
+
+testCM("setSize", function(cm) {
+  cm.setSize(100, 100);
+  var wrap = cm.getWrapperElement();
+  is(wrap.offsetWidth, 100);
+  is(wrap.offsetHeight, 100);
+  cm.setSize("100%", "3em");
+  is(wrap.style.width, "100%");
+  is(wrap.style.height, "3em");
+  cm.setSize(null, 40);
+  is(wrap.style.width, "100%");
+  is(wrap.style.height, "40px");
+});
+
+function foldLines(cm, start, end, autoClear) {
+  return cm.markText(Pos(start, 0), Pos(end - 1), {
+    inclusiveLeft: true,
+    inclusiveRight: true,
+    collapsed: true,
+    clearOnEnter: autoClear
+  });
+}
+
+testCM("collapsedLines", function(cm) {
+  addDoc(cm, 4, 10);
+  var range = foldLines(cm, 4, 5), cleared = 0;
+  CodeMirror.on(range, "clear", function() {cleared++;});
+  cm.setCursor(Pos(3, 0));
+  CodeMirror.commands.goLineDown(cm);
+  eqCharPos(cm.getCursor(), Pos(5, 0));
+  cm.replaceRange("abcdefg", Pos(3, 0), Pos(3));
+  cm.setCursor(Pos(3, 6));
+  CodeMirror.commands.goLineDown(cm);
+  eqCharPos(cm.getCursor(), Pos(5, 4));
+  cm.replaceRange("ab", Pos(3, 0), Pos(3));
+  cm.setCursor(Pos(3, 2));
+  CodeMirror.commands.goLineDown(cm);
+  eqCharPos(cm.getCursor(), Pos(5, 2));
+  cm.operation(function() {range.clear(); range.clear();});
+  eq(cleared, 1);
+});
+
+testCM("collapsedRangeCoordsChar", function(cm) {
+  var pos_1_3 = cm.charCoords(Pos(1, 3));
+  pos_1_3.left += 2; pos_1_3.top += 2;
+  var opts = {collapsed: true, inclusiveLeft: true, inclusiveRight: true};
+  var m1 = cm.markText(Pos(0, 0), Pos(2, 0), opts);
+  eqCharPos(cm.coordsChar(pos_1_3), Pos(3, 3));
+  m1.clear();
+  var m1 = cm.markText(Pos(0, 0), Pos(1, 1), {collapsed: true, inclusiveLeft: true});
+  var m2 = cm.markText(Pos(1, 1), Pos(2, 0), {collapsed: true, inclusiveRight: true});
+  eqCharPos(cm.coordsChar(pos_1_3), Pos(3, 3));
+  m1.clear(); m2.clear();
+  var m1 = cm.markText(Pos(0, 0), Pos(1, 6), opts);
+  eqCharPos(cm.coordsChar(pos_1_3), Pos(3, 3));
+}, {value: "123456\nabcdef\nghijkl\nmnopqr\n"});
+
+testCM("collapsedRangeBetweenLinesSelected", function(cm) {
+  if (cm.getOption("inputStyle") != "textarea") return;
+  var widget = document.createElement("span");
+  widget.textContent = "\u2194";
+  cm.markText(Pos(0, 3), Pos(1, 0), {replacedWith: widget});
+  cm.setSelection(Pos(0, 3), Pos(1, 0));
+  var selElts = byClassName(cm.getWrapperElement(), "CodeMirror-selected");
+  for (var i = 0, w = 0; i < selElts.length; i++)
+    w += selElts[i].offsetWidth;
+  is(w > 0);
+}, {value: "one\ntwo"});
+
+testCM("randomCollapsedRanges", function(cm) {
+  addDoc(cm, 20, 500);
+  cm.operation(function() {
+    for (var i = 0; i < 200; i++) {
+      var start = Pos(Math.floor(Math.random() * 500), Math.floor(Math.random() * 20));
+      if (i % 4)
+        try { cm.markText(start, Pos(start.line + 2, 1), {collapsed: true}); }
+        catch(e) { if (!/overlapping/.test(String(e))) throw e; }
+      else
+        cm.markText(start, Pos(start.line, start.ch + 4), {"className": "foo"});
+    }
+  });
+});
+
+testCM("hiddenLinesAutoUnfold", function(cm) {
+  var range = foldLines(cm, 1, 3, true), cleared = 0;
+  CodeMirror.on(range, "clear", function() {cleared++;});
+  cm.setCursor(Pos(3, 0));
+  eq(cleared, 0);
+  cm.execCommand("goCharLeft");
+  eq(cleared, 1);
+  range = foldLines(cm, 1, 3, true);
+  CodeMirror.on(range, "clear", function() {cleared++;});
+  eqCursorPos(cm.getCursor(), Pos(3, 0));
+  cm.setCursor(Pos(0, 3));
+  cm.execCommand("goCharRight");
+  eq(cleared, 2);
+}, {value: "abc\ndef\nghi\njkl"});
+
+testCM("hiddenLinesSelectAll", function(cm) {  // Issue #484
+  addDoc(cm, 4, 20);
+  foldLines(cm, 0, 10);
+  foldLines(cm, 11, 20);
+  CodeMirror.commands.selectAll(cm);
+  eqCursorPos(cm.getCursor(true), Pos(10, 0));
+  eqCursorPos(cm.getCursor(false), Pos(10, 4));
+});
+
+
+testCM("everythingFolded", function(cm) {
+  addDoc(cm, 2, 2);
+  function enterPress() {
+    cm.triggerOnKeyDown({type: "keydown", keyCode: 13, preventDefault: function(){}, stopPropagation: function(){}});
+  }
+  var fold = foldLines(cm, 0, 2);
+  enterPress();
+  eq(cm.getValue(), "xx\nxx");
+  fold.clear();
+  fold = foldLines(cm, 0, 2, true);
+  eq(fold.find(), null);
+  enterPress();
+  eq(cm.getValue(), "\nxx\nxx");
+});
+
+testCM("structuredFold", function(cm) {
+  if (phantom) return;
+  addDoc(cm, 4, 8);
+  var range = cm.markText(Pos(1, 2), Pos(6, 2), {
+    replacedWith: document.createTextNode("Q")
+  });
+  cm.setCursor(0, 3);
+  CodeMirror.commands.goLineDown(cm);
+  eqCharPos(cm.getCursor(), Pos(6, 2));
+  CodeMirror.commands.goCharLeft(cm);
+  eqCharPos(cm.getCursor(), Pos(1, 2));
+  CodeMirror.commands.delCharAfter(cm);
+  eq(cm.getValue(), "xxxx\nxxxx\nxxxx");
+  addDoc(cm, 4, 8);
+  range = cm.markText(Pos(1, 2), Pos(6, 2), {
+    replacedWith: document.createTextNode("M"),
+    clearOnEnter: true
+  });
+  var cleared = 0;
+  CodeMirror.on(range, "clear", function(){++cleared;});
+  cm.setCursor(0, 3);
+  CodeMirror.commands.goLineDown(cm);
+  eqCharPos(cm.getCursor(), Pos(6, 2));
+  CodeMirror.commands.goCharLeft(cm);
+  eqCharPos(cm.getCursor(), Pos(6, 1));
+  eq(cleared, 1);
+  range.clear();
+  eq(cleared, 1);
+  range = cm.markText(Pos(1, 2), Pos(6, 2), {
+    replacedWith: document.createTextNode("Q"),
+    clearOnEnter: true
+  });
+  range.clear();
+  cm.setCursor(1, 2);
+  CodeMirror.commands.goCharRight(cm);
+  eqCharPos(cm.getCursor(), Pos(1, 3));
+  range = cm.markText(Pos(2, 0), Pos(4, 4), {
+    replacedWith: document.createTextNode("M")
+  });
+  cm.setCursor(1, 0);
+  CodeMirror.commands.goLineDown(cm);
+  eqCharPos(cm.getCursor(), Pos(2, 0));
+}, null);
+
+testCM("nestedFold", function(cm) {
+  addDoc(cm, 10, 3);
+  function fold(ll, cl, lr, cr) {
+    return cm.markText(Pos(ll, cl), Pos(lr, cr), {collapsed: true});
+  }
+  var inner1 = fold(0, 6, 1, 3), inner2 = fold(0, 2, 1, 8), outer = fold(0, 1, 2, 3), inner0 = fold(0, 5, 0, 6);
+  cm.setCursor(0, 1);
+  CodeMirror.commands.goCharRight(cm);
+  eqCursorPos(cm.getCursor(), Pos(2, 3));
+  inner0.clear();
+  CodeMirror.commands.goCharLeft(cm);
+  eqCursorPos(cm.getCursor(), Pos(0, 1));
+  outer.clear();
+  CodeMirror.commands.goCharRight(cm);
+  eqCursorPos(cm.getCursor(), Pos(0, 2, "before"));
+  CodeMirror.commands.goCharRight(cm);
+  eqCursorPos(cm.getCursor(), Pos(1, 8));
+  inner2.clear();
+  CodeMirror.commands.goCharLeft(cm);
+  eqCursorPos(cm.getCursor(), Pos(1, 7, "after"));
+  cm.setCursor(0, 5);
+  CodeMirror.commands.goCharRight(cm);
+  eqCursorPos(cm.getCursor(), Pos(0, 6, "before"));
+  CodeMirror.commands.goCharRight(cm);
+  eqCursorPos(cm.getCursor(), Pos(1, 3));
+});
+
+testCM("badNestedFold", function(cm) {
+  addDoc(cm, 4, 4);
+  cm.markText(Pos(0, 2), Pos(3, 2), {collapsed: true});
+  var caught;
+  try {cm.markText(Pos(0, 1), Pos(0, 3), {collapsed: true});}
+  catch(e) {caught = e;}
+  is(caught instanceof Error, "no error");
+  is(/overlap/i.test(caught.message), "wrong error");
+});
+
+testCM("nestedFoldOnSide", function(cm) {
+  var m1 = cm.markText(Pos(0, 1), Pos(2, 1), {collapsed: true, inclusiveRight: true});
+  var m2 = cm.markText(Pos(0, 1), Pos(0, 2), {collapsed: true});
+  cm.markText(Pos(0, 1), Pos(0, 2), {collapsed: true}).clear();
+  try { cm.markText(Pos(0, 1), Pos(0, 2), {collapsed: true, inclusiveLeft: true}); }
+  catch(e) { var caught = e; }
+  is(caught && /overlap/i.test(caught.message));
+  var m3 = cm.markText(Pos(2, 0), Pos(2, 1), {collapsed: true});
+  var m4 = cm.markText(Pos(2, 0), Pos(2, 1), {collapse: true, inclusiveRight: true});
+  m1.clear(); m4.clear();
+  m1 = cm.markText(Pos(0, 1), Pos(2, 1), {collapsed: true});
+  cm.markText(Pos(2, 0), Pos(2, 1), {collapsed: true}).clear();
+  try { cm.markText(Pos(2, 0), Pos(2, 1), {collapsed: true, inclusiveRight: true}); }
+  catch(e) { var caught = e; }
+  is(caught && /overlap/i.test(caught.message));
+}, {value: "ab\ncd\ef"});
+
+testCM("editInFold", function(cm) {
+  addDoc(cm, 4, 6);
+  var m = cm.markText(Pos(1, 2), Pos(3, 2), {collapsed: true});
+  cm.replaceRange("", Pos(0, 0), Pos(1, 3));
+  cm.replaceRange("", Pos(2, 1), Pos(3, 3));
+  cm.replaceRange("a\nb\nc\nd", Pos(0, 1), Pos(1, 0));
+  cm.cursorCoords(Pos(0, 0));
+});
+
+testCM("wrappingInlineWidget", function(cm) {
+  cm.setSize("11em");
+  var w = document.createElement("span");
+  w.style.color = "red";
+  w.innerHTML = "one two three four";
+  cm.markText(Pos(0, 6), Pos(0, 9), {replacedWith: w});
+  var cur0 = cm.cursorCoords(Pos(0, 0)), cur1 = cm.cursorCoords(Pos(0, 10));
+  is(cur0.top < cur1.top);
+  is(cur0.bottom < cur1.bottom);
+  var curL = cm.cursorCoords(Pos(0, 6)), curR = cm.cursorCoords(Pos(0, 9));
+  eq(curL.top, cur0.top);
+  eq(curL.bottom, cur0.bottom);
+  eq(curR.top, cur1.top);
+  eq(curR.bottom, cur1.bottom);
+  cm.replaceRange("", Pos(0, 9), Pos(0));
+  curR = cm.cursorCoords(Pos(0, 9));
+  if (phantom) return;
+  eq(curR.top, cur1.top);
+  eq(curR.bottom, cur1.bottom);
+}, {value: "1 2 3 xxx 4", lineWrapping: true});
+
+testCM("showEmptyWidgetSpan", function(cm) {
+  var marker = cm.markText(Pos(0, 2), Pos(0, 2), {
+    clearWhenEmpty: false,
+    replacedWith: document.createTextNode("X")
+  });
+  var text = cm.display.view[0].text;
+  eq(text.textContent || text.innerText, "abXc");
+}, {value: "abc"});
+
+testCM("changedInlineWidget", function(cm) {
+  cm.setSize("10em");
+  var w = document.createElement("span");
+  w.innerHTML = "x";
+  var m = cm.markText(Pos(0, 4), Pos(0, 5), {replacedWith: w});
+  w.innerHTML = "and now the widget is really really long all of a sudden and a scrollbar is needed";
+  m.changed();
+  var hScroll = byClassName(cm.getWrapperElement(), "CodeMirror-hscrollbar")[0];
+  is(hScroll.scrollWidth > hScroll.clientWidth);
+}, {value: "hello there"});
+
+testCM("changedBookmark", function(cm) {
+  cm.setSize("10em");
+  var w = document.createElement("span");
+  w.innerHTML = "x";
+  var m = cm.setBookmark(Pos(0, 4), {widget: w});
+  w.innerHTML = "and now the widget is really really long all of a sudden and a scrollbar is needed";
+  m.changed();
+  var hScroll = byClassName(cm.getWrapperElement(), "CodeMirror-hscrollbar")[0];
+  is(hScroll.scrollWidth > hScroll.clientWidth);
+}, {value: "abcdefg"});
+
+testCM("inlineWidget", function(cm) {
+  var w = cm.setBookmark(Pos(0, 2), {widget: document.createTextNode("uu")});
+  cm.setCursor(0, 2);
+  CodeMirror.commands.goLineDown(cm);
+  eqCharPos(cm.getCursor(), Pos(1, 4));
+  cm.setCursor(0, 2);
+  cm.replaceSelection("hi");
+  eqCharPos(w.find(), Pos(0, 2));
+  cm.setCursor(0, 1);
+  cm.replaceSelection("ay");
+  eqCharPos(w.find(), Pos(0, 4));
+  eq(cm.getLine(0), "uayuhiuu");
+}, {value: "uuuu\nuuuuuu"});
+
+testCM("wrappingAndResizing", function(cm) {
+  cm.setSize(null, "auto");
+  cm.setOption("lineWrapping", true);
+  var wrap = cm.getWrapperElement(), h0 = wrap.offsetHeight;
+  var doc = "xxx xxx xxx xxx xxx";
+  cm.setValue(doc);
+  for (var step = 10, w = cm.charCoords(Pos(0, 18), "div").right;; w += step) {
+    cm.setSize(w);
+    if (wrap.offsetHeight <= h0 * (opera_lt10 ? 1.2 : 1.5)) {
+      if (step == 10) { w -= 10; step = 1; }
+      else break;
+    }
+  }
+  // Ensure that putting the cursor at the end of the maximally long
+  // line doesn't cause wrapping to happen.
+  cm.setCursor(Pos(0, doc.length));
+  eq(wrap.offsetHeight, h0);
+  cm.replaceSelection("x");
+  is(wrap.offsetHeight > h0, "wrapping happens");
+  // Now add a max-height and, in a document consisting of
+  // almost-wrapped lines, go over it so that a scrollbar appears.
+  cm.setValue(doc + "\n" + doc + "\n");
+  cm.getScrollerElement().style.maxHeight = "100px";
+  cm.replaceRange("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n!\n", Pos(2, 0));
+  forEach([Pos(0, doc.length), Pos(0, doc.length - 1),
+           Pos(0, 0), Pos(1, doc.length), Pos(1, doc.length - 1)],
+          function(pos) {
+    var coords = cm.charCoords(pos);
+    eqCharPos(pos, cm.coordsChar({left: coords.left + 2, top: coords.top + 5}));
+  });
+}, null, ie_lt8);
+
+testCM("measureEndOfLine", function(cm) {
+  if (phantom) return;
+  cm.setSize(null, "auto");
+  var inner = byClassName(cm.getWrapperElement(), "CodeMirror-lines")[0].firstChild;
+  var lh = inner.offsetHeight;
+  for (var step = 10, w = cm.charCoords(Pos(0, 7), "div").right;; w += step) {
+    cm.setSize(w);
+    if (inner.offsetHeight < 2.5 * lh) {
+      if (step == 10) { w -= 10; step = 1; }
+      else break;
+    }
+  }
+  cm.setValue(cm.getValue() + "\n\n");
+  var endPos = cm.charCoords(Pos(0, 18), "local");
+  is(endPos.top > lh * .8, "not at top");
+  is(endPos.left > w - 20, "at right");
+  endPos = cm.charCoords(Pos(0, 18));
+  eqCursorPos(cm.coordsChar({left: endPos.left, top: endPos.top + 5}), Pos(0, 18, "before"));
+
+  var wrapPos = cm.cursorCoords(Pos(0, 9, "before"));
+  is(wrapPos.top < endPos.top, "wrapPos is actually in first line");
+  eqCursorPos(cm.coordsChar({left: wrapPos.left + 10, top: wrapPos.top}), Pos(0, 9, "before"));
+}, {mode: "text/html", value: "", lineWrapping: true}, ie_lt8 || opera_lt10);
+
+testCM("measureWrappedEndOfLine", function(cm) {
+  if (phantom) return;
+  cm.setSize(null, "auto");
+  var inner = byClassName(cm.getWrapperElement(), "CodeMirror-lines")[0].firstChild;
+  var lh = inner.offsetHeight;
+  for (var step = 10, w = cm.charCoords(Pos(0, 7), "div").right;; w += step) {
+    cm.setSize(w);
+    if (inner.offsetHeight < 2.5 * lh) {
+      if (step == 10) { w -= 10; step = 1; }
+      else break;
+    }
+  }
+  for (var i = 0; i < 3; ++i) {
+    var endPos = cm.charCoords(Pos(0, 12)); // Next-to-last since last would wrap (#1862)
+    endPos.left += w; // Add width of editor just to be sure that we are behind last character
+    eqCursorPos(cm.coordsChar(endPos), Pos(0, 13, "before"));
+    endPos.left += w * 100;
+    eqCursorPos(cm.coordsChar(endPos), Pos(0, 13, "before"));
+    cm.setValue("0123456789abcابجابجابجابج");
+    if (i == 1) {
+      var node = document.createElement("div");
+      node.innerHTML = "hi"; node.style.height = "30px";
+      cm.addLineWidget(0, node, {above: true});
+    }
+  }
+}, {mode: "text/html", value: "0123456789abcde0123456789", lineWrapping: true}, ie_lt8 || opera_lt10);
+
+testCM("measureWrappedBeginOfLine", function(cm) {
+  if (phantom) return;
+  cm.setSize(null, "auto");
+  var inner = byClassName(cm.getWrapperElement(), "CodeMirror-lines")[0].firstChild;
+  var lh = inner.offsetHeight;
+  for (var step = 10, w = cm.charCoords(Pos(0, 7), "div").right;; w += step) {
+    cm.setSize(w);
+    if (inner.offsetHeight < 2.5 * lh) {
+      if (step == 10) { w -= 10; step = 1; }
+      else break;
+    }
+  }
+  var beginOfSecondLine = Pos(0, 13, "after");
+  for (var i = 0; i < 2; ++i) {
+    var beginPos = cm.charCoords(Pos(0, 0));
+    beginPos.left -= w;
+    eqCursorPos(cm.coordsChar(beginPos), Pos(0, 0, "after"));
+    beginPos = cm.cursorCoords(beginOfSecondLine);
+    beginPos.left = 0;
+    eqCursorPos(cm.coordsChar(beginPos), beginOfSecondLine);
+    cm.setValue("0123456789abcابجابجابجابج");
+    beginOfSecondLine = Pos(0, 25, "before");
+  }
+}, {mode: "text/html", value: "0123456789abcde0123456789", lineWrapping: true});
+
+testCM("scrollVerticallyAndHorizontally", function(cm) {
+  if (cm.getOption("inputStyle") != "textarea") return;
+  cm.setSize(100, 100);
+  addDoc(cm, 40, 40);
+  cm.setCursor(39);
+  var wrap = cm.getWrapperElement(), bar = byClassName(wrap, "CodeMirror-vscrollbar")[0];
+  is(bar.offsetHeight < wrap.offsetHeight, "vertical scrollbar limited by horizontal one");
+  var cursorBox = byClassName(wrap, "CodeMirror-cursor")[0].getBoundingClientRect();
+  var editorBox = wrap.getBoundingClientRect();
+  is(cursorBox.bottom < editorBox.top + cm.getScrollerElement().clientHeight,
+     "bottom line visible");
+}, {lineNumbers: true});
+
+testCM("moveVstuck", function(cm) {
+  var lines = byClassName(cm.getWrapperElement(), "CodeMirror-lines")[0].firstChild, h0 = lines.offsetHeight;
+  var val = "fooooooooooooooooooooooooo baaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaar\n";
+  cm.setValue(val);
+  for (var w = cm.charCoords(Pos(0, 26), "div").right * 2.8;; w += 5) {
+    cm.setSize(w);
+    if (lines.offsetHeight <= 3.5 * h0) break;
+  }
+  cm.setCursor(Pos(0, val.length - 1));
+  cm.moveV(-1, "line");
+  eqCursorPos(cm.getCursor(), Pos(0, 27, "before"));
+  is(cm.cursorCoords(null, "local").top < h0, "cursor is in first visual line");
+}, {lineWrapping: true}, ie_lt8 || opera_lt10);
+
+testCM("collapseOnMove", function(cm) {
+  cm.setSelection(Pos(0, 1), Pos(2, 4));
+  cm.execCommand("goLineUp");
+  is(!cm.somethingSelected());
+  eqCharPos(cm.getCursor(), Pos(0, 1));
+  cm.setSelection(Pos(0, 1), Pos(2, 4));
+  cm.execCommand("goPageDown");
+  is(!cm.somethingSelected());
+  eqCharPos(cm.getCursor(), Pos(2, 4));
+  cm.execCommand("goLineUp");
+  cm.execCommand("goLineUp");
+  eqCharPos(cm.getCursor(), Pos(0, 4));
+  cm.setSelection(Pos(0, 1), Pos(2, 4));
+  cm.execCommand("goCharLeft");
+  is(!cm.somethingSelected());
+  eqCharPos(cm.getCursor(), Pos(0, 1));
+}, {value: "aaaaa\nb\nccccc"});
+
+testCM("clickTab", function(cm) {
+  var p0 = cm.charCoords(Pos(0, 0));
+  eqCharPos(cm.coordsChar({left: p0.left + 5, top: p0.top + 5}), Pos(0, 0));
+  eqCharPos(cm.coordsChar({left: p0.right - 5, top: p0.top + 5}), Pos(0, 1));
+}, {value: "\t\n\n", lineWrapping: true, tabSize: 8});
+
+testCM("verticalScroll", function(cm) {
+  cm.setSize(100, 200);
+  cm.setValue("foo\nbar\nbaz\n");
+  var sc = cm.getScrollerElement(), baseWidth = sc.scrollWidth;
+  cm.replaceRange("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaah", Pos(0, 0), Pos(0));
+  is(sc.scrollWidth > baseWidth, "scrollbar present");
+  cm.replaceRange("foo", Pos(0, 0), Pos(0));
+  if (!phantom) eq(sc.scrollWidth, baseWidth, "scrollbar gone");
+  cm.replaceRange("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaah", Pos(0, 0), Pos(0));
+  cm.replaceRange("bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbh", Pos(1, 0), Pos(1));
+  is(sc.scrollWidth > baseWidth, "present again");
+  var curWidth = sc.scrollWidth;
+  cm.replaceRange("foo", Pos(0, 0), Pos(0));
+  is(sc.scrollWidth < curWidth, "scrollbar smaller");
+  is(sc.scrollWidth > baseWidth, "but still present");
+});
+
+testCM("extraKeys", function(cm) {
+  var outcome;
+  function fakeKey(expected, code, props) {
+    if (typeof code == "string") code = code.charCodeAt(0);
+    var e = {type: "keydown", keyCode: code, preventDefault: function(){}, stopPropagation: function(){}};
+    if (props) for (var n in props) e[n] = props[n];
+    outcome = null;
+    cm.triggerOnKeyDown(e);
+    eq(outcome, expected);
+  }
+  CodeMirror.commands.testCommand = function() {outcome = "tc";};
+  CodeMirror.commands.goTestCommand = function() {outcome = "gtc";};
+  cm.setOption("extraKeys", {"Shift-X": function() {outcome = "sx";},
+                             "X": function() {outcome = "x";},
+                             "Ctrl-Alt-U": function() {outcome = "cau";},
+                             "End": "testCommand",
+                             "Home": "goTestCommand",
+                             "Tab": false});
+  fakeKey(null, "U");
+  fakeKey("cau", "U", {ctrlKey: true, altKey: true});
+  fakeKey(null, "U", {shiftKey: true, ctrlKey: true, altKey: true});
+  fakeKey("x", "X");
+  fakeKey("sx", "X", {shiftKey: true});
+  fakeKey("tc", 35);
+  fakeKey(null, 35, {shiftKey: true});
+  fakeKey("gtc", 36);
+  fakeKey("gtc", 36, {shiftKey: true});
+  fakeKey(null, 9);
+}, null, window.opera && mac);
+
+testCM("wordMovementCommands", function(cm) {
+  cm.execCommand("goWordLeft");
+  eqCursorPos(cm.getCursor(), Pos(0, 0));
+  cm.execCommand("goWordRight"); cm.execCommand("goWordRight");
+  eqCursorPos(cm.getCursor(), Pos(0, 7, "before"));
+  cm.execCommand("goWordLeft");
+  eqCursorPos(cm.getCursor(), Pos(0, 5, "after"));
+  cm.execCommand("goWordRight"); cm.execCommand("goWordRight");
+  eqCursorPos(cm.getCursor(), Pos(0, 12, "before"));
+  cm.execCommand("goWordLeft");
+  eqCursorPos(cm.getCursor(), Pos(0, 9, "after"));
+  cm.execCommand("goWordRight"); cm.execCommand("goWordRight"); cm.execCommand("goWordRight");
+  eqCursorPos(cm.getCursor(), Pos(0, 24, "before"));
+  cm.execCommand("goWordRight"); cm.execCommand("goWordRight");
+  eqCursorPos(cm.getCursor(), Pos(1, 9, "before"));
+  cm.execCommand("goWordRight");
+  eqCursorPos(cm.getCursor(), Pos(1, 13, "before"));
+  cm.execCommand("goWordRight"); cm.execCommand("goWordRight");
+  eqCharPos(cm.getCursor(), Pos(2, 0));
+}, {value: "this is (the) firstline.\na foo12\u00e9\u00f8\u00d7bar\n"});
+
+testCM("groupMovementCommands", function(cm) {
+  cm.execCommand("goGroupLeft");
+  eqCursorPos(cm.getCursor(), Pos(0, 0));
+  cm.execCommand("goGroupRight");
+  eqCursorPos(cm.getCursor(), Pos(0, 4, "before"));
+  cm.execCommand("goGroupRight");
+  eqCursorPos(cm.getCursor(), Pos(0, 7, "before"));
+  cm.execCommand("goGroupRight");
+  eqCursorPos(cm.getCursor(), Pos(0, 10, "before"));
+  cm.execCommand("goGroupLeft");
+  eqCursorPos(cm.getCursor(), Pos(0, 7, "after"));
+  cm.execCommand("goGroupRight"); cm.execCommand("goGroupRight"); cm.execCommand("goGroupRight");
+  eqCursorPos(cm.getCursor(), Pos(0, 15, "before"));
+  cm.setCursor(Pos(0, 17));
+  cm.execCommand("goGroupLeft");
+  eqCursorPos(cm.getCursor(), Pos(0, 16, "after"));
+  cm.execCommand("goGroupLeft");
+  eqCursorPos(cm.getCursor(), Pos(0, 14, "after"));
+  cm.execCommand("goGroupRight"); cm.execCommand("goGroupRight");
+  eqCursorPos(cm.getCursor(), Pos(0, 20, "before"));
+  cm.execCommand("goGroupRight");
+  eqCursorPos(cm.getCursor(), Pos(1, 0, "after"));
+  cm.execCommand("goGroupRight");
+  eqCursorPos(cm.getCursor(), Pos(1, 2, "before"));
+  cm.execCommand("goGroupRight");
+  eqCursorPos(cm.getCursor(), Pos(1, 5, "before"));
+  cm.execCommand("goGroupLeft"); cm.execCommand("goGroupLeft");
+  eqCursorPos(cm.getCursor(), Pos(1, 0, "after"));
+  cm.execCommand("goGroupLeft");
+  eqCursorPos(cm.getCursor(), Pos(0, 20, "after"));
+  cm.execCommand("goGroupLeft");
+  eqCursorPos(cm.getCursor(), Pos(0, 16, "after"));
+}, {value: "booo ba---quux. ffff\n  abc d"});
+
+testCM("groupsAndWhitespace", function(cm) {
+  var positions = [Pos(0, 0), Pos(0, 2), Pos(0, 5), Pos(0, 9), Pos(0, 11),
+                   Pos(1, 0), Pos(1, 2), Pos(1, 5)];
+  for (var i = 1; i < positions.length; i++) {
+    cm.execCommand("goGroupRight");
+    eqCharPos(cm.getCursor(), positions[i]);
+  }
+  for (var i = positions.length - 2; i >= 0; i--) {
+    cm.execCommand("goGroupLeft");
+    eqCharPos(cm.getCursor(), i == 2 ? Pos(0, 6, "before") : positions[i]);
+  }
+}, {value: "  foo +++  \n  bar"});
+
+testCM("charMovementCommands", function(cm) {
+  cm.execCommand("goCharLeft"); cm.execCommand("goColumnLeft");
+  eqCursorPos(cm.getCursor(), Pos(0, 0));
+  cm.execCommand("goCharRight"); cm.execCommand("goCharRight");
+  eqCursorPos(cm.getCursor(), Pos(0, 2, "before"));
+  cm.setCursor(Pos(1, 0));
+  cm.execCommand("goColumnLeft");
+  eqCursorPos(cm.getCursor(), Pos(1, 0));
+  cm.execCommand("goCharLeft");
+  eqCursorPos(cm.getCursor(), Pos(0, 5, "before"));
+  cm.execCommand("goColumnRight");
+  eqCursorPos(cm.getCursor(), Pos(0, 5, "before"));
+  cm.execCommand("goCharRight");
+  eqCursorPos(cm.getCursor(), Pos(1, 0, "after"));
+  cm.execCommand("goLineEnd");
+  eqCursorPos(cm.getCursor(), Pos(1, 5, "before"));
+  cm.execCommand("goLineStartSmart");
+  eqCursorPos(cm.getCursor(), Pos(1, 1, "after"));
+  cm.execCommand("goLineStartSmart");
+  eqCursorPos(cm.getCursor(), Pos(1, 0, "after"));
+  cm.setCursor(Pos(2, 0));
+  cm.execCommand("goCharRight"); cm.execCommand("goColumnRight");
+  eqCursorPos(cm.getCursor(), Pos(2, 0));
+}, {value: "line1\n ine2\n"});
+
+testCM("verticalMovementCommands", function(cm) {
+  cm.execCommand("goLineUp");
+  eqCharPos(cm.getCursor(), Pos(0, 0));
+  cm.execCommand("goLineDown");
+  if (!phantom) // This fails in PhantomJS, though not in a real Webkit
+    eqCharPos(cm.getCursor(), Pos(1, 0));
+  cm.setCursor(Pos(1, 12));
+  cm.execCommand("goLineDown");
+  eqCharPos(cm.getCursor(), Pos(2, 5));
+  cm.execCommand("goLineDown");
+  eqCharPos(cm.getCursor(), Pos(3, 0));
+  cm.execCommand("goLineUp");
+  eqCharPos(cm.getCursor(), Pos(2, 5));
+  cm.execCommand("goLineUp");
+  eqCharPos(cm.getCursor(), Pos(1, 12));
+  cm.execCommand("goPageDown");
+  eqCharPos(cm.getCursor(), Pos(5, 0));
+  cm.execCommand("goPageDown"); cm.execCommand("goLineDown");
+  eqCharPos(cm.getCursor(), Pos(5, 0));
+  cm.execCommand("goPageUp");
+  eqCharPos(cm.getCursor(), Pos(0, 0));
+}, {value: "line1\nlong long line2\nline3\n\nline5\n"});
+
+testCM("verticalMovementCommandsWrapping", function(cm) {
+  cm.setSize(120);
+  cm.setCursor(Pos(0, 5));
+  cm.execCommand("goLineDown");
+  eq(cm.getCursor().line, 0);
+  is(cm.getCursor().ch > 5, "moved beyond wrap");
+  for (var i = 0; ; ++i) {
+    is(i < 20, "no endless loop");
+    cm.execCommand("goLineDown");
+    var cur = cm.getCursor();
+    if (cur.line == 1) eq(cur.ch, 5);
+    if (cur.line == 2) { eq(cur.ch, 1); break; }
+  }
+}, {value: "a very long line that wraps around somehow so that we can test cursor movement\nshortone\nk",
+    lineWrapping: true});
+
+testCM("verticalMovementCommandsSingleLine", function(cm) {
+  cm.display.wrapper.style.height = "auto";
+  cm.refresh();
+  cm.execCommand("goLineUp");
+  eqCursorPos(cm.getCursor(), Pos(0, 0));
+  cm.execCommand("goLineDown");
+  eqCursorPos(cm.getCursor(), Pos(0, 11));
+  cm.setCursor(Pos(0, 5));
+  cm.execCommand("goLineDown");
+  eqCursorPos(cm.getCursor(), Pos(0, 11));
+  cm.execCommand("goLineDown");
+  eqCursorPos(cm.getCursor(), Pos(0, 11));
+  cm.execCommand("goLineUp");
+  eqCursorPos(cm.getCursor(), Pos(0, 0));
+  cm.execCommand("goLineUp");
+  eqCursorPos(cm.getCursor(), Pos(0, 0));
+  cm.execCommand("goPageDown");
+  eqCursorPos(cm.getCursor(), Pos(0, 11));
+  cm.execCommand("goPageDown"); cm.execCommand("goLineDown");
+  eqCursorPos(cm.getCursor(), Pos(0, 11));
+  cm.execCommand("goPageUp");
+  eqCursorPos(cm.getCursor(), Pos(0, 0));
+  cm.setCursor(Pos(0, 5));
+  cm.execCommand("goPageUp");
+  eqCursorPos(cm.getCursor(), Pos(0, 0));
+  cm.setCursor(Pos(0, 5));
+  cm.execCommand("goPageDown");
+  eqCursorPos(cm.getCursor(), Pos(0, 11));
+}, {value: "single line"});
+
+
+testCM("rtlMovement", function(cm) {
+  if (cm.getOption("inputStyle") != "textarea") return;
+  forEach(["خحج", "خحabcخحج", "abخحخحجcd", "abخde", "abخح2342خ1حج", "خ1ح2خح3حxج",
+           "خحcd", "1خحcd", "abcdeح1ج", "خمرحبها مها!", "foobarر", "خ ة ق",
+           "", "يتم السحب في 05 فبراير 2014"], function(line) {
+    cm.setValue(line + "\n"); cm.execCommand("goLineStart");
+    var cursors = byClassName(cm.getWrapperElement(), "CodeMirror-cursors")[0];
+    var cursor = cursors.firstChild;
+    var prevX = cursor.offsetLeft, prevY = cursor.offsetTop;
+    for (var i = 0; i <= line.length; ++i) {
+      cm.execCommand("goCharRight");
+      cursor = cursors.firstChild;
+      if (i == line.length) is(cursor.offsetTop > prevY, "next line");
+      else is(cursor.offsetLeft > prevX, "moved right");
+      prevX = cursor.offsetLeft; prevY = cursor.offsetTop;
+    }
+    cm.setCursor(0, 0); cm.execCommand("goLineEnd");
+    prevX = cursors.firstChild.offsetLeft;
+    for (var i = 0; i < line.length; ++i) {
+      cm.execCommand("goCharLeft");
+      cursor = cursors.firstChild;
+      is(cursor.offsetLeft < prevX, "moved left");
+      prevX = cursor.offsetLeft;
+    }
+  });
+}, null, ie_lt9);
+
+// Verify that updating a line clears its bidi ordering
+testCM("bidiUpdate", function(cm) {
+  cm.setCursor(Pos(0, 2, "before"));
+  cm.replaceSelection("خحج", "start");
+  cm.execCommand("goCharRight");
+  eqCursorPos(cm.getCursor(), Pos(0, 6, "before"));
+}, {value: "abcd\n"});
+
+testCM("movebyTextUnit", function(cm) {
+  cm.setValue("בְּרֵאשִ\nééé́\n");
+  cm.execCommand("goLineStart");
+  for (var i = 0; i < 4; ++i) cm.execCommand("goCharRight");
+  eqCursorPos(cm.getCursor(), Pos(0, 0, "after"));
+  cm.execCommand("goCharRight");
+  eqCursorPos(cm.getCursor(), Pos(1, 0, "after"));
+  cm.execCommand("goCharRight");
+  cm.execCommand("goCharRight");
+  eqCursorPos(cm.getCursor(), Pos(1, 4, "before"));
+  cm.execCommand("goCharRight");
+  eqCursorPos(cm.getCursor(), Pos(1, 7, "before"));
+});
+
+testCM("lineChangeEvents", function(cm) {
+  addDoc(cm, 3, 5);
+  var log = [], want = ["ch 0", "ch 1", "del 2", "ch 0", "ch 0", "del 1", "del 3", "del 4"];
+  for (var i = 0; i < 5; ++i) {
+    CodeMirror.on(cm.getLineHandle(i), "delete", function(i) {
+      return function() {log.push("del " + i);};
+    }(i));
+    CodeMirror.on(cm.getLineHandle(i), "change", function(i) {
+      return function() {log.push("ch " + i);};
+    }(i));
+  }
+  cm.replaceRange("x", Pos(0, 1));
+  cm.replaceRange("xy", Pos(1, 1), Pos(2));
+  cm.replaceRange("foo\nbar", Pos(0, 1));
+  cm.replaceRange("", Pos(0, 0), Pos(cm.lineCount()));
+  eq(log.length, want.length, "same length");
+  for (var i = 0; i < log.length; ++i)
+    eq(log[i], want[i]);
+});
+
+testCM("scrollEntirelyToRight", function(cm) {
+  if (phantom || cm.getOption("inputStyle") != "textarea") return;
+  addDoc(cm, 500, 2);
+  cm.setCursor(Pos(0, 500));
+  var wrap = cm.getWrapperElement(), cur = byClassName(wrap, "CodeMirror-cursor")[0];
+  is(wrap.getBoundingClientRect().right > cur.getBoundingClientRect().left);
+});
+
+testCM("lineWidgets", function(cm) {
+  addDoc(cm, 500, 3);
+  var last = cm.charCoords(Pos(2, 0));
+  var node = document.createElement("div");
+  node.innerHTML = "hi";
+  var widget = cm.addLineWidget(1, node);
+  is(last.top < cm.charCoords(Pos(2, 0)).top, "took up space");
+  cm.setCursor(Pos(1, 1));
+  cm.execCommand("goLineDown");
+  eqCharPos(cm.getCursor(), Pos(2, 1));
+  cm.execCommand("goLineUp");
+  eqCharPos(cm.getCursor(), Pos(1, 1));
+});
+
+testCM("lineWidgetFocus", function(cm) {
+  var place = document.getElementById("testground");
+  place.className = "offscreen";
+  try {
+    addDoc(cm, 500, 10);
+    var node = document.createElement("input");
+    var widget = cm.addLineWidget(1, node);
+    node.focus();
+    eq(document.activeElement, node);
+    cm.replaceRange("new stuff", Pos(1, 0));
+    eq(document.activeElement, node);
+  } finally {
+    place.className = "";
+  }
+});
+
+testCM("lineWidgetCautiousRedraw", function(cm) {
+  var node = document.createElement("div");
+  node.innerHTML = "hahah";
+  var w = cm.addLineWidget(0, node);
+  var redrawn = false;
+  w.on("redraw", function() { redrawn = true; });
+  cm.replaceSelection("0");
+  is(!redrawn);
+}, {value: "123\n456"});
+
+
+var knownScrollbarWidth;
+function scrollbarWidth(measure) {
+  if (knownScrollbarWidth != null) return knownScrollbarWidth;
+  var div = document.createElement('div');
+  div.style.cssText = "width: 50px; height: 50px; overflow-x: scroll";
+  document.body.appendChild(div);
+  knownScrollbarWidth = div.offsetHeight - div.clientHeight;
+  document.body.removeChild(div);
+  return knownScrollbarWidth || 0;
+}
+
+testCM("lineWidgetChanged", function(cm) {
+  addDoc(cm, 2, 300);
+  var halfScrollbarWidth = scrollbarWidth(cm.display.measure)/2;
+  cm.setOption('lineNumbers', true);
+  cm.setSize(600, cm.defaultTextHeight() * 50);
+  cm.scrollTo(null, cm.heightAtLine(125, "local"));
+
+  var expectedWidgetHeight = 60;
+  var expectedLinesInWidget = 3;
+  function w() {
+    var node = document.createElement("div");
+    // we use these children with just under half width of the line to check measurements are made with correct width
+    // when placed in the measure div.
+    // If the widget is measured at a width much narrower than it is displayed at, the underHalf children will span two lines and break the test.
+    // If the widget is measured at a width much wider than it is displayed at, the overHalf children will combine and break the test.
+    // Note that this test only checks widgets where coverGutter is true, because these require extra styling to get the width right.
+    // It may also be worthwhile to check this for non-coverGutter widgets.
+    // Visually:
+    // Good:
+    // | ------------- display width ------------- |
+    // | ------- widget-width when measured ------ |
+    // | | -- under-half -- | | -- under-half -- | |
+    // | | --- over-half --- |                     |
+    // | | --- over-half --- |                     |
+    // Height: measured as 3 lines, same as it will be when actually displayed
+
+    // Bad (too narrow):
+    // | ------------- display width ------------- |
+    // | ------ widget-width when measured ----- |  < -- uh oh
+    // | | -- under-half -- |                    |
+    // | | -- under-half -- |                    |  < -- when measured, shoved to next line
+    // | | --- over-half --- |                   |
+    // | | --- over-half --- |                   |
+    // Height: measured as 4 lines, more than expected . Will be displayed as 3 lines!
+
+    // Bad (too wide):
+    // | ------------- display width ------------- |
+    // | -------- widget-width when measured ------- | < -- uh oh
+    // | | -- under-half -- | | -- under-half -- |   |
+    // | | --- over-half --- | | --- over-half --- | | < -- when measured, combined on one line
+    // Height: measured as 2 lines, less than expected. Will be displayed as 3 lines!
+
+    var barelyUnderHalfWidthHtml = '
    ';
+    var barelyOverHalfWidthHtml = '
    ';
+    node.innerHTML = new Array(3).join(barelyUnderHalfWidthHtml) + new Array(3).join(barelyOverHalfWidthHtml);
+    node.style.cssText = "background: yellow;font-size:0;line-height: " + (expectedWidgetHeight/expectedLinesInWidget) + "px;";
+    return node;
+  }
+  var info0 = cm.getScrollInfo();
+  var w0 = cm.addLineWidget(0, w(), { coverGutter: true });
+  var w150 = cm.addLineWidget(150, w(), { coverGutter: true });
+  var w300 = cm.addLineWidget(300, w(), { coverGutter: true });
+  var info1 = cm.getScrollInfo();
+  eq(info0.height + (3 * expectedWidgetHeight), info1.height);
+  eq(info0.top + expectedWidgetHeight, info1.top);
+  expectedWidgetHeight = 12;
+  w0.node.style.lineHeight = w150.node.style.lineHeight = w300.node.style.lineHeight = (expectedWidgetHeight/expectedLinesInWidget) + "px";
+  w0.changed(); w150.changed(); w300.changed();
+  var info2 = cm.getScrollInfo();
+  eq(info0.height + (3 * expectedWidgetHeight), info2.height);
+  eq(info0.top + expectedWidgetHeight, info2.top);
+});
+
+testCM("getLineNumber", function(cm) {
+  addDoc(cm, 2, 20);
+  var h1 = cm.getLineHandle(1);
+  eq(cm.getLineNumber(h1), 1);
+  cm.replaceRange("hi\nbye\n", Pos(0, 0));
+  eq(cm.getLineNumber(h1), 3);
+  cm.setValue("");
+  eq(cm.getLineNumber(h1), null);
+});
+
+testCM("jumpTheGap", function(cm) {
+  if (phantom) return;
+  var longLine = "abcdef ghiklmnop qrstuvw xyz ";
+  longLine += longLine; longLine += longLine; longLine += longLine;
+  cm.replaceRange(longLine, Pos(2, 0), Pos(2));
+  cm.setSize("200px", null);
+  cm.getWrapperElement().style.lineHeight = 2;
+  cm.refresh();
+  cm.setCursor(Pos(0, 1));
+  cm.execCommand("goLineDown");
+  eqCharPos(cm.getCursor(), Pos(1, 1));
+  cm.execCommand("goLineDown");
+  eqCharPos(cm.getCursor(), Pos(2, 1));
+  cm.execCommand("goLineDown");
+  eq(cm.getCursor().line, 2);
+  is(cm.getCursor().ch > 1);
+  cm.execCommand("goLineUp");
+  eqCharPos(cm.getCursor(), Pos(2, 1));
+  cm.execCommand("goLineUp");
+  eqCharPos(cm.getCursor(), Pos(1, 1));
+  var node = document.createElement("div");
+  node.innerHTML = "hi"; node.style.height = "30px";
+  cm.addLineWidget(0, node);
+  cm.addLineWidget(1, node.cloneNode(true), {above: true});
+  cm.setCursor(Pos(0, 2));
+  cm.execCommand("goLineDown");
+  eqCharPos(cm.getCursor(), Pos(1, 2));
+  cm.execCommand("goLineUp");
+  eqCharPos(cm.getCursor(), Pos(0, 2));
+}, {lineWrapping: true, value: "abc\ndef\nghi\njkl\n"});
+
+testCM("addLineClass", function(cm) {
+  function cls(line, text, bg, wrap, gutter) {
+    var i = cm.lineInfo(line);
+    eq(i.textClass, text);
+    eq(i.bgClass, bg);
+    eq(i.wrapClass, wrap);
+    if (typeof i.handle.gutterClass !== 'undefined') {
+        eq(i.handle.gutterClass, gutter);
+    }
+  }
+  cm.addLineClass(0, "text", "foo");
+  cm.addLineClass(0, "text", "bar");
+  cm.addLineClass(1, "background", "baz");
+  cm.addLineClass(1, "wrap", "foo");
+  cm.addLineClass(1, "gutter", "gutter-class");
+  cls(0, "foo bar", null, null, null);
+  cls(1, null, "baz", "foo", "gutter-class");
+  var lines = cm.display.lineDiv;
+  eq(byClassName(lines, "foo").length, 2);
+  eq(byClassName(lines, "bar").length, 1);
+  eq(byClassName(lines, "baz").length, 1);
+  eq(byClassName(lines, "gutter-class").length, 2); // Gutter classes are reflected in 2 nodes
+  cm.removeLineClass(0, "text", "foo");
+  cls(0, "bar", null, null, null);
+  cm.removeLineClass(0, "text", "foo");
+  cls(0, "bar", null, null, null);
+  cm.removeLineClass(0, "text", "bar");
+  cls(0, null, null, null);
+
+  cm.addLineClass(1, "wrap", "quux");
+  cls(1, null, "baz", "foo quux", "gutter-class");
+  cm.removeLineClass(1, "wrap");
+  cls(1, null, "baz", null, "gutter-class");
+  cm.removeLineClass(1, "gutter", "gutter-class");
+  eq(byClassName(lines, "gutter-class").length, 0);
+  cls(1, null, "baz", null, null);
+
+  cm.addLineClass(1, "gutter", "gutter-class");
+  cls(1, null, "baz", null, "gutter-class");
+  cm.removeLineClass(1, "gutter", "gutter-class");
+  cls(1, null, "baz", null, null);
+
+}, {value: "hohoho\n", lineNumbers: true});
+
+testCM("atomicMarker", function(cm) {
+  addDoc(cm, 10, 10);
+  function atom(ll, cl, lr, cr, li, ri) {
+    return cm.markText(Pos(ll, cl), Pos(lr, cr),
+                       {atomic: true, inclusiveLeft: li, inclusiveRight: ri});
+  }
+  var m = atom(0, 1, 0, 5);
+  cm.setCursor(Pos(0, 1));
+  cm.execCommand("goCharRight");
+  eqCursorPos(cm.getCursor(), Pos(0, 5));
+  cm.execCommand("goCharLeft");
+  eqCursorPos(cm.getCursor(), Pos(0, 1));
+  m.clear();
+  m = atom(0, 0, 0, 5, true);
+  eqCursorPos(cm.getCursor(), Pos(0, 5), "pushed out");
+  cm.execCommand("goCharLeft");
+  eqCursorPos(cm.getCursor(), Pos(0, 5));
+  m.clear();
+  m = atom(8, 4, 9, 10, false, true);
+  cm.setCursor(Pos(9, 8));
+  eqCursorPos(cm.getCursor(), Pos(8, 4), "set");
+  cm.execCommand("goCharRight");
+  eqCursorPos(cm.getCursor(), Pos(8, 4), "char right");
+  cm.execCommand("goLineDown");
+  eqCursorPos(cm.getCursor(), Pos(8, 4), "line down");
+  cm.execCommand("goCharLeft");
+  eqCursorPos(cm.getCursor(), Pos(8, 3, "after"));
+  m.clear();
+  m = atom(1, 1, 3, 8);
+  cm.setCursor(Pos(0, 0));
+  cm.setCursor(Pos(2, 0));
+  eqCursorPos(cm.getCursor(), Pos(3, 8));
+  cm.execCommand("goCharLeft");
+  eqCursorPos(cm.getCursor(), Pos(1, 1));
+  cm.execCommand("goCharRight");
+  eqCursorPos(cm.getCursor(), Pos(3, 8));
+  cm.execCommand("goLineUp");
+  eqCursorPos(cm.getCursor(), Pos(1, 1));
+  cm.execCommand("goLineDown");
+  eqCursorPos(cm.getCursor(), Pos(3, 8));
+  cm.execCommand("delCharBefore");
+  eq(cm.getValue().length, 80, "del chunk");
+  m = atom(3, 0, 5, 5);
+  cm.setCursor(Pos(3, 0));
+  cm.execCommand("delWordAfter");
+  eq(cm.getValue().length, 53, "del chunk");
+});
+
+testCM("selectionBias", function(cm) {
+  cm.markText(Pos(0, 1), Pos(0, 3), {atomic: true});
+  cm.setCursor(Pos(0, 2));
+  eqCursorPos(cm.getCursor(), Pos(0, 1));
+  cm.setCursor(Pos(0, 2));
+  eqCursorPos(cm.getCursor(), Pos(0, 3));
+  cm.setCursor(Pos(0, 2));
+  eqCursorPos(cm.getCursor(), Pos(0, 1));
+  cm.setCursor(Pos(0, 2), null, {bias: -1});
+  eqCursorPos(cm.getCursor(), Pos(0, 1));
+  cm.setCursor(Pos(0, 4));
+  cm.setCursor(Pos(0, 2), null, {bias: 1});
+  eqCursorPos(cm.getCursor(), Pos(0, 3));
+}, {value: "12345"});
+
+testCM("selectionHomeEnd", function(cm) {
+  cm.markText(Pos(1, 0), Pos(1, 1), {atomic: true, inclusiveLeft: true});
+  cm.markText(Pos(1, 3), Pos(1, 4), {atomic: true, inclusiveRight: true});
+  cm.setCursor(Pos(1, 2));
+  cm.execCommand("goLineStart");
+  eqCursorPos(cm.getCursor(), Pos(1, 1));
+  cm.execCommand("goLineEnd");
+  eqCursorPos(cm.getCursor(), Pos(1, 3));
+}, {value: "ab\ncdef\ngh"});
+
+testCM("readOnlyMarker", function(cm) {
+  function mark(ll, cl, lr, cr, at) {
+    return cm.markText(Pos(ll, cl), Pos(lr, cr),
+                       {readOnly: true, atomic: at});
+  }
+  var m = mark(0, 1, 0, 4);
+  cm.setCursor(Pos(0, 2));
+  cm.replaceSelection("hi", "end");
+  eqCursorPos(cm.getCursor(), Pos(0, 2));
+  eq(cm.getLine(0), "abcde");
+  cm.execCommand("selectAll");
+  cm.replaceSelection("oops", "around");
+  eq(cm.getValue(), "oopsbcd");
+  cm.undo();
+  eqCursorPos(m.find().from, Pos(0, 1));
+  eqCursorPos(m.find().to, Pos(0, 4));
+  m.clear();
+  cm.setCursor(Pos(0, 2));
+  cm.replaceSelection("hi", "around");
+  eq(cm.getLine(0), "abhicde");
+  eqCursorPos(cm.getCursor(), Pos(0, 4));
+  m = mark(0, 2, 2, 2, true);
+  cm.setSelection(Pos(1, 1), Pos(2, 4));
+  cm.replaceSelection("t", "end");
+  eqCursorPos(cm.getCursor(), Pos(2, 3));
+  eq(cm.getLine(2), "klto");
+  cm.execCommand("goCharLeft");
+  cm.execCommand("goCharLeft");
+  eqCursorPos(cm.getCursor(), Pos(0, 2));
+  cm.setSelection(Pos(0, 1), Pos(0, 3));
+  cm.replaceSelection("xx", "around");
+  eqCursorPos(cm.getCursor(), Pos(0, 3));
+  eq(cm.getLine(0), "axxhicde");
+}, {value: "abcde\nfghij\nklmno\n"});
+
+testCM("dirtyBit", function(cm) {
+  eq(cm.isClean(), true);
+  cm.replaceSelection("boo", null, "test");
+  eq(cm.isClean(), false);
+  cm.undo();
+  eq(cm.isClean(), true);
+  cm.replaceSelection("boo", null, "test");
+  cm.replaceSelection("baz", null, "test");
+  cm.undo();
+  eq(cm.isClean(), false);
+  cm.markClean();
+  eq(cm.isClean(), true);
+  cm.undo();
+  eq(cm.isClean(), false);
+  cm.redo();
+  eq(cm.isClean(), true);
+});
+
+testCM("changeGeneration", function(cm) {
+  cm.replaceSelection("x");
+  var softGen = cm.changeGeneration();
+  cm.replaceSelection("x");
+  cm.undo();
+  eq(cm.getValue(), "");
+  is(!cm.isClean(softGen));
+  cm.replaceSelection("x");
+  var hardGen = cm.changeGeneration(true);
+  cm.replaceSelection("x");
+  cm.undo();
+  eq(cm.getValue(), "x");
+  is(cm.isClean(hardGen));
+});
+
+testCM("addKeyMap", function(cm) {
+  function sendKey(code) {
+    cm.triggerOnKeyDown({type: "keydown", keyCode: code,
+                         preventDefault: function(){}, stopPropagation: function(){}});
+  }
+
+  sendKey(39);
+  eqCursorPos(cm.getCursor(), Pos(0, 1, "before"));
+  var test = 0;
+  var map1 = {Right: function() { ++test; }}, map2 = {Right: function() { test += 10; }}
+  cm.addKeyMap(map1);
+  sendKey(39);
+  eqCursorPos(cm.getCursor(), Pos(0, 1, "before"));
+  eq(test, 1);
+  cm.addKeyMap(map2, true);
+  sendKey(39);
+  eq(test, 2);
+  cm.removeKeyMap(map1);
+  sendKey(39);
+  eq(test, 12);
+  cm.removeKeyMap(map2);
+  sendKey(39);
+  eq(test, 12);
+  eqCursorPos(cm.getCursor(), Pos(0, 2, "before"));
+  cm.addKeyMap({Right: function() { test = 55; }, name: "mymap"});
+  sendKey(39);
+  eq(test, 55);
+  cm.removeKeyMap("mymap");
+  sendKey(39);
+  eqCursorPos(cm.getCursor(), Pos(0, 3, "before"));
+}, {value: "abc"});
+
+testCM("findPosH", function(cm) {
+  forEach([{from: Pos(0, 0), to: Pos(0, 1, "before"), by: 1},
+           {from: Pos(0, 0), to: Pos(0, 0), by: -1, hitSide: true},
+           {from: Pos(0, 0), to: Pos(0, 4, "before"), by: 1, unit: "word"},
+           {from: Pos(0, 0), to: Pos(0, 8, "before"), by: 2, unit: "word"},
+           {from: Pos(0, 0), to: Pos(2, 0, "after"), by: 20, unit: "word", hitSide: true},
+           {from: Pos(0, 7), to: Pos(0, 5, "after"), by: -1, unit: "word"},
+           {from: Pos(0, 4), to: Pos(0, 8, "before"), by: 1, unit: "word"},
+           {from: Pos(1, 0), to: Pos(1, 18, "before"), by: 3, unit: "word"},
+           {from: Pos(1, 22), to: Pos(1, 5, "after"), by: -3, unit: "word"},
+           {from: Pos(1, 15), to: Pos(1, 10, "after"), by: -5},
+           {from: Pos(1, 15), to: Pos(1, 10, "after"), by: -5, unit: "column"},
+           {from: Pos(1, 15), to: Pos(1, 0, "after"), by: -50, unit: "column", hitSide: true},
+           {from: Pos(1, 15), to: Pos(1, 24, "before"), by: 50, unit: "column", hitSide: true},
+           {from: Pos(1, 15), to: Pos(2, 0, "after"), by: 50, hitSide: true}], function(t) {
+    var r = cm.findPosH(t.from, t.by, t.unit || "char");
+    eqCursorPos(r, t.to);
+    eq(!!r.hitSide, !!t.hitSide);
+  });
+}, {value: "line one\nline two.something.other\n"});
+
+testCM("beforeChange", function(cm) {
+  cm.on("beforeChange", function(cm, change) {
+    var text = [];
+    for (var i = 0; i < change.text.length; ++i)
+      text.push(change.text[i].replace(/\s/g, "_"));
+    change.update(null, null, text);
+  });
+  cm.setValue("hello, i am a\nnew document\n");
+  eq(cm.getValue(), "hello,_i_am_a\nnew_document\n");
+  CodeMirror.on(cm.getDoc(), "beforeChange", function(doc, change) {
+    if (change.from.line == 0) change.cancel();
+  });
+  cm.setValue("oops"); // Canceled
+  eq(cm.getValue(), "hello,_i_am_a\nnew_document\n");
+  cm.replaceRange("hey hey hey", Pos(1, 0), Pos(2, 0));
+  eq(cm.getValue(), "hello,_i_am_a\nhey_hey_hey");
+}, {value: "abcdefghijk"});
+
+testCM("beforeChangeUndo", function(cm) {
+  cm.replaceRange("hi", Pos(0, 0), Pos(0));
+  cm.replaceRange("bye", Pos(0, 0), Pos(0));
+  eq(cm.historySize().undo, 2);
+  cm.on("beforeChange", function(cm, change) {
+    is(!change.update);
+    change.cancel();
+  });
+  cm.undo();
+  eq(cm.historySize().undo, 0);
+  eq(cm.getValue(), "bye\ntwo");
+}, {value: "one\ntwo"});
+
+testCM("beforeSelectionChange", function(cm) {
+  function notAtEnd(cm, pos) {
+    var len = cm.getLine(pos.line).length;
+    if (!len || pos.ch == len) return Pos(pos.line, pos.ch - 1);
+    return pos;
+  }
+  cm.on("beforeSelectionChange", function(cm, obj) {
+    obj.update([{anchor: notAtEnd(cm, obj.ranges[0].anchor),
+                 head: notAtEnd(cm, obj.ranges[0].head)}]);
+  });
+
+  addDoc(cm, 10, 10);
+  cm.execCommand("goLineEnd");
+  eqCursorPos(cm.getCursor(), Pos(0, 9));
+  cm.execCommand("selectAll");
+  eqCursorPos(cm.getCursor("start"), Pos(0, 0));
+  eqCursorPos(cm.getCursor("end"), Pos(9, 9));
+});
+
+testCM("change_removedText", function(cm) {
+  cm.setValue("abc\ndef");
+
+  var removedText = [];
+  cm.on("change", function(cm, change) {
+    removedText.push(change.removed);
+  });
+
+  cm.operation(function() {
+    cm.replaceRange("xyz", Pos(0, 0), Pos(1,1));
+    cm.replaceRange("123", Pos(0,0));
+  });
+
+  eq(removedText.length, 2);
+  eq(removedText[0].join("\n"), "abc\nd");
+  eq(removedText[1].join("\n"), "");
+
+  var removedText = [];
+  cm.undo();
+  eq(removedText.length, 2);
+  eq(removedText[0].join("\n"), "123");
+  eq(removedText[1].join("\n"), "xyz");
+
+  var removedText = [];
+  cm.redo();
+  eq(removedText.length, 2);
+  eq(removedText[0].join("\n"), "abc\nd");
+  eq(removedText[1].join("\n"), "");
+});
+
+testCM("lineStyleFromMode", function(cm) {
+  CodeMirror.defineMode("test_mode", function() {
+    return {token: function(stream) {
+      if (stream.match(/^\[[^\]]*\]/)) return "  line-brackets  ";
+      if (stream.match(/^\([^\)]*\)/)) return "  line-background-parens  ";
+      if (stream.match(/^<[^>]*>/)) return "  span  line-line  line-background-bg  ";
+      stream.match(/^\s+|^\S+/);
+    }};
+  });
+  cm.setOption("mode", "test_mode");
+  var bracketElts = byClassName(cm.getWrapperElement(), "brackets");
+  eq(bracketElts.length, 1, "brackets count");
+  eq(bracketElts[0].nodeName, "PRE");
+  is(!/brackets.*brackets/.test(bracketElts[0].className));
+  var parenElts = byClassName(cm.getWrapperElement(), "parens");
+  eq(parenElts.length, 1, "parens count");
+  eq(parenElts[0].nodeName, "DIV");
+  is(!/parens.*parens/.test(parenElts[0].className));
+  eq(parenElts[0].parentElement.nodeName, "DIV");
+
+  is(byClassName(cm.getWrapperElement(), "bg").length > 0);
+  is(byClassName(cm.getWrapperElement(), "line").length > 0);
+  var spanElts = byClassName(cm.getWrapperElement(), "cm-span");
+  eq(spanElts.length, 2);
+  is(/^\s*cm-span\s*$/.test(spanElts[0].className));
+}, {value: "line1: [br] [br]\nline2: (par) (par)\nline3:  "});
+
+testCM("lineStyleFromBlankLine", function(cm) {
+  CodeMirror.defineMode("lineStyleFromBlankLine_mode", function() {
+    return {token: function(stream) { stream.skipToEnd(); return "comment"; },
+            blankLine: function() { return "line-blank"; }};
+  });
+  cm.setOption("mode", "lineStyleFromBlankLine_mode");
+  var blankElts = byClassName(cm.getWrapperElement(), "blank");
+  eq(blankElts.length, 1);
+  eq(blankElts[0].nodeName, "PRE");
+  cm.replaceRange("x", Pos(1, 0));
+  blankElts = byClassName(cm.getWrapperElement(), "blank");
+  eq(blankElts.length, 0);
+}, {value: "foo\n\nbar"});
+
+CodeMirror.registerHelper("xxx", "a", "A");
+CodeMirror.registerHelper("xxx", "b", "B");
+CodeMirror.defineMode("yyy", function() {
+  return {
+    token: function(stream) { stream.skipToEnd(); },
+    xxx: ["a", "b", "q"]
+  };
+});
+CodeMirror.registerGlobalHelper("xxx", "c", function(m) { return m.enableC; }, "C");
+
+testCM("helpers", function(cm) {
+  cm.setOption("mode", "yyy");
+  eq(cm.getHelpers(Pos(0, 0), "xxx").join("/"), "A/B");
+  cm.setOption("mode", {name: "yyy", modeProps: {xxx: "b", enableC: true}});
+  eq(cm.getHelpers(Pos(0, 0), "xxx").join("/"), "B/C");
+  cm.setOption("mode", "javascript");
+  eq(cm.getHelpers(Pos(0, 0), "xxx").join("/"), "");
+});
+
+testCM("selectionHistory", function(cm) {
+  for (var i = 0; i < 3; i++) {
+    cm.setExtending(true);
+    cm.execCommand("goCharRight");
+    cm.setExtending(false);
+    cm.execCommand("goCharRight");
+    cm.execCommand("goCharRight");
+  }
+  cm.execCommand("undoSelection");
+  eq(cm.getSelection(), "c");
+  cm.execCommand("undoSelection");
+  eq(cm.getSelection(), "");
+  eqCursorPos(cm.getCursor(), Pos(0, 4, "before"));
+  cm.execCommand("undoSelection");
+  eq(cm.getSelection(), "b");
+  cm.execCommand("redoSelection");
+  eq(cm.getSelection(), "");
+  eqCursorPos(cm.getCursor(), Pos(0, 4, "before"));
+  cm.execCommand("redoSelection");
+  eq(cm.getSelection(), "c");
+  cm.execCommand("redoSelection");
+  eq(cm.getSelection(), "");
+  eqCursorPos(cm.getCursor(), Pos(0, 6, "before"));
+}, {value: "a b c d"});
+
+testCM("selectionChangeReducesRedo", function(cm) {
+  cm.replaceSelection("X");
+  cm.execCommand("goCharRight");
+  cm.undoSelection();
+  cm.execCommand("selectAll");
+  cm.undoSelection();
+  eq(cm.getValue(), "Xabc");
+  eqCursorPos(cm.getCursor(), Pos(0, 1));
+  cm.undoSelection();
+  eq(cm.getValue(), "abc");
+}, {value: "abc"});
+
+testCM("selectionHistoryNonOverlapping", function(cm) {
+  cm.setSelection(Pos(0, 0), Pos(0, 1));
+  cm.setSelection(Pos(0, 2), Pos(0, 3));
+  cm.execCommand("undoSelection");
+  eqCursorPos(cm.getCursor("anchor"), Pos(0, 0));
+  eqCursorPos(cm.getCursor("head"), Pos(0, 1));
+}, {value: "1234"});
+
+testCM("cursorMotionSplitsHistory", function(cm) {
+  cm.replaceSelection("a");
+  cm.execCommand("goCharRight");
+  cm.replaceSelection("b");
+  cm.replaceSelection("c");
+  cm.undo();
+  eq(cm.getValue(), "a1234");
+  eqCursorPos(cm.getCursor(), Pos(0, 2, "before"));
+  cm.undo();
+  eq(cm.getValue(), "1234");
+  eqCursorPos(cm.getCursor(), Pos(0, 0));
+}, {value: "1234"});
+
+testCM("selChangeInOperationDoesNotSplit", function(cm) {
+  for (var i = 0; i < 4; i++) {
+    cm.operation(function() {
+      cm.replaceSelection("x");
+      cm.setCursor(Pos(0, cm.getCursor().ch - 1));
+    });
+  }
+  eqCursorPos(cm.getCursor(), Pos(0, 0));
+  eq(cm.getValue(), "xxxxa");
+  cm.undo();
+  eq(cm.getValue(), "a");
+}, {value: "a"});
+
+testCM("alwaysMergeSelEventWithChangeOrigin", function(cm) {
+  cm.replaceSelection("U", null, "foo");
+  cm.setSelection(Pos(0, 0), Pos(0, 1), {origin: "foo"});
+  cm.undoSelection();
+  eq(cm.getValue(), "a");
+  cm.replaceSelection("V", null, "foo");
+  cm.setSelection(Pos(0, 0), Pos(0, 1), {origin: "bar"});
+  cm.undoSelection();
+  eq(cm.getValue(), "Va");
+}, {value: "a"});
+
+testCM("getTokenAt", function(cm) {
+  var tokPlus = cm.getTokenAt(Pos(0, 2));
+  eq(tokPlus.type, "operator");
+  eq(tokPlus.string, "+");
+  var toks = cm.getLineTokens(0);
+  eq(toks.length, 3);
+  forEach([["number", "1"], ["operator", "+"], ["number", "2"]], function(expect, i) {
+    eq(toks[i].type, expect[0]);
+    eq(toks[i].string, expect[1]);
+  });
+}, {value: "1+2", mode: "javascript"});
+
+testCM("getTokenTypeAt", function(cm) {
+  eq(cm.getTokenTypeAt(Pos(0, 0)), "number");
+  eq(cm.getTokenTypeAt(Pos(0, 6)), "string");
+  cm.addOverlay({
+    token: function(stream) {
+      if (stream.match("foo")) return "foo";
+      else stream.next();
+    }
+  });
+  eq(byClassName(cm.getWrapperElement(), "cm-foo").length, 1);
+  eq(cm.getTokenTypeAt(Pos(0, 6)), "string");
+}, {value: "1 + 'foo'", mode: "javascript"});
+
+testCM("resizeLineWidget", function(cm) {
+  addDoc(cm, 200, 3);
+  var widget = document.createElement("pre");
+  widget.innerHTML = "imwidget";
+  widget.style.background = "yellow";
+  cm.addLineWidget(1, widget, {noHScroll: true});
+  cm.setSize(40);
+  is(widget.parentNode.offsetWidth < 42);
+});
+
+testCM("combinedOperations", function(cm) {
+  var place = document.getElementById("testground");
+  var other = CodeMirror(place, {value: "123"});
+  try {
+    cm.operation(function() {
+      cm.addLineClass(0, "wrap", "foo");
+      other.addLineClass(0, "wrap", "foo");
+    });
+    eq(byClassName(cm.getWrapperElement(), "foo").length, 1);
+    eq(byClassName(other.getWrapperElement(), "foo").length, 1);
+    cm.operation(function() {
+      cm.removeLineClass(0, "wrap", "foo");
+      other.removeLineClass(0, "wrap", "foo");
+    });
+    eq(byClassName(cm.getWrapperElement(), "foo").length, 0);
+    eq(byClassName(other.getWrapperElement(), "foo").length, 0);
+  } finally {
+    place.removeChild(other.getWrapperElement());
+  }
+}, {value: "abc"});
+
+testCM("eventOrder", function(cm) {
+  var seen = [];
+  cm.on("change", function() {
+    if (!seen.length) cm.replaceSelection(".");
+    seen.push("change");
+  });
+  cm.on("cursorActivity", function() {
+    cm.replaceSelection("!");
+    seen.push("activity");
+  });
+  cm.replaceSelection("/");
+  eq(seen.join(","), "change,change,activity,change");
+});
+
+testCM("splitSpaces_nonspecial", function(cm) {
+  eq(byClassName(cm.getWrapperElement(), "cm-invalidchar").length, 0);
+}, {
+  specialChars: /[\u00a0]/,
+  value: "spaces ->            <- between"
+});
+
+test("core_rmClass", function() {
+  var node = document.createElement("div");
+  node.className = "foo-bar baz-quux yadda";
+  CodeMirror.rmClass(node, "quux");
+  eq(node.className, "foo-bar baz-quux yadda");
+  CodeMirror.rmClass(node, "baz-quux");
+  eq(node.className, "foo-bar yadda");
+  CodeMirror.rmClass(node, "yadda");
+  eq(node.className, "foo-bar");
+  CodeMirror.rmClass(node, "foo-bar");
+  eq(node.className, "");
+  node.className = " foo ";
+  CodeMirror.rmClass(node, "foo");
+  eq(node.className, "");
+});
+
+test("core_addClass", function() {
+  var node = document.createElement("div");
+  CodeMirror.addClass(node, "a");
+  eq(node.className, "a");
+  CodeMirror.addClass(node, "a");
+  eq(node.className, "a");
+  CodeMirror.addClass(node, "b");
+  eq(node.className, "a b");
+  CodeMirror.addClass(node, "a");
+  CodeMirror.addClass(node, "b");
+  eq(node.className, "a b");
+});
+
+testCM("lineSeparator", function(cm) {
+  eq(cm.lineCount(), 3);
+  eq(cm.getLine(1), "bar\r");
+  eq(cm.getLine(2), "baz\rquux");
+  cm.setOption("lineSeparator", "\r");
+  eq(cm.lineCount(), 5);
+  eq(cm.getLine(4), "quux");
+  eq(cm.getValue(), "foo\rbar\r\rbaz\rquux");
+  eq(cm.getValue("\n"), "foo\nbar\n\nbaz\nquux");
+  cm.setOption("lineSeparator", null);
+  cm.setValue("foo\nbar\r\nbaz\rquux");
+  eq(cm.lineCount(), 4);
+}, {value: "foo\nbar\r\nbaz\rquux",
+    lineSeparator: "\n"});
+
+var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/
+var getChar = function (noExtending) { var res; do {res = String.fromCharCode(Math.floor(Math.random()*0x8ac)); } while ([0x90].indexOf(res.charCodeAt(0)) != -1 || (noExtending && extendingChars.test(res))); return res }
+var getString = function (n) { var res = getChar(true); while (--n > 0) res += getChar(); return res }
+
+function makeItWrapAfter(cm, pos) {
+  var firstLineTop = cm.cursorCoords(Pos(0, 0)).top;
+  for(var w = 0, posTop; posTop != firstLineTop; ++w) {
+    cm.setSize(w);
+    posTop = cm.charCoords(pos).top;
+  }
+}
+
+function countIf(arr, f) {
+  var result = 0
+  for (var i = 0; i < arr.length; i++) if (f[arr[i]]) result++
+  return result
+}
+
+function testMoveBidi(str) {
+  testCM("move_bidi_" + str, function(cm) {
+    if (cm.getOption("inputStyle") != "textarea" || !cm.getOption("rtlMoveVisually")) return;
+    cm.getScrollerElement().style.fontFamily = "monospace";
+    makeItWrapAfter(cm, Pos(0, 5));
+
+    var steps = str.length - countIf(str.split(""), function(ch) { return extendingChars.test(ch) });
+    var lineBreaks = {}
+    lineBreaks[6 - countIf(str.substr(0, 5).split(""), function(ch) { return extendingChars.test(ch) })] = 'w';
+    if (str.indexOf("\n") != -1) {
+      lineBreaks[steps - 2] = 'n';
+    }
+
+    // Make sure we are at the visual beginning of the first line
+    cm.execCommand("goLineStart");
+
+    var prevCoords = cm.cursorCoords(), coords;
+    for(var i = 0; i < steps; ++i) {
+      cm.execCommand("goCharRight");
+      coords = cm.cursorCoords();
+      if ((i >= 10 && i <= 12) && !lineBreaks[i] && coords.left < prevCoords.left && coords.top > prevCoords.top) {
+        // The first line wraps twice
+        lineBreaks[i] = 'w';
+      }
+      if (!lineBreaks[i]) {
+        is(coords.left > prevCoords.left, "In step " + i + ", cursor didn't move right");
+        eq(coords.top, prevCoords.top, "In step " + i + ", cursor moved out of line");
+      } else {
+        is(coords.left < prevCoords.left, i);
+        is(coords.top > prevCoords.top, i);
+      }
+      prevCoords = coords;
+    }
+
+    cm.execCommand("goCharRight");
+    coords = cm.cursorCoords();
+    eq(coords.left, prevCoords.left, "Moving " + steps + " steps right didn't reach the end");
+    eq(coords.top, prevCoords.top, "Moving " + steps + " steps right didn't reach the end");
+
+    for(i = steps - 1; i >= 0; --i) {
+      cm.execCommand("goCharLeft");
+      coords = cm.cursorCoords();
+      if (!(lineBreaks[i] == 'n' || lineBreaks[i + 1] == 'w')) {
+        is(coords.left < prevCoords.left, "In step " + i + ", cursor didn't move left");
+        eq(coords.top, prevCoords.top, "In step " + i + ", cursor is not at the same line anymore");
+      } else {
+        is(coords.left > prevCoords.left, i);
+        is(coords.top < prevCoords.top, i);
+      }
+      prevCoords = coords;
+    }
+
+    cm.execCommand("goCharLeft");
+    coords = cm.cursorCoords();
+    eq(coords.left, prevCoords.left, "Moving " + steps + " steps left didn't reach the beginning");
+    eq(coords.top, prevCoords.top, "Moving " + steps + " steps left didn't reach the beginning");
+  }, {value: str, lineWrapping: true})
+};
+
+function testMoveEndBidi(str) {
+  testCM("move_end_bidi_" + str, function(cm) {
+    cm.getScrollerElement().style.fontFamily = "monospace";
+    makeItWrapAfter(cm, Pos(0, 5));
+
+    cm.execCommand("goLineStart");
+    var pos = cm.doc.getCursor();
+    cm.execCommand("goCharLeft");
+    eqCursorPos(pos, cm.doc.getCursor());
+
+    cm.execCommand("goLineEnd");
+    pos = cm.doc.getCursor();
+    cm.execCommand("goColumnRight");
+    eqCursorPos(pos, cm.doc.getCursor());
+  }, {value: str, lineWrapping: true})
+};
+
+var bidiTests = [];
+
+// We don't correctly implement L1 UBA
+// See https://bugzilla.mozilla.org/show_bug.cgi?id=1331501
+// and https://bugs.chromium.org/p/chromium/issues/detail?id=673405
+/*
+bidiTests.push("Say ا ب جabj\nS");
+bidiTests.push("Sayyy ا ا ب ج");
+*/
+
+if (!phantom) {
+  bidiTests.push("Όȝǝڪȉۥ״ۺ׆ɀҩۏ\nҳ");
+  bidiTests.push("ŌӰтقȤ؁ƥ؅٣ĎȺ١\nϚ");
+  bidiTests.push("ٻоҤѕѽΩ־؉ïίքdz\nٵ");
+  bidiTests.push("؅؁ĆՕƿɁǞϮؠȩóć\nď");
+  bidiTests.push("RŨďңŪzϢŎƏԖڇڦ\nӈ");
+  bidiTests.push("ό׊۷٢ԜһОצЉيčǟ\nѩ");
+  bidiTests.push("ۑÚҳҕڬġڹհяųKV\nr");
+  bidiTests.push("źڻғúہ4ם1Ƞc1a\nԁ");
+  bidiTests.push("ҒȨҟփƞ٦ԓȦڰғâƥ\nڤ");
+  bidiTests.push("ϖسՉȏŧΔԛdžĎӟیڡ\nέ");
+  bidiTests.push("۹ؼL۵ĺȧКԙػא7״\nم");
+  bidiTests.push("ن (ي)\u2009أقواس"); // thin space to throw off Firefox 51's broken white-space compressing behavior
+}
+
+bidiTests.push("քմѧǮßپüŢҍҞўڳ\nӧ");
+
+//bidiTests.push("Count ١ ٢ ٣ ٤");
+//bidiTests.push("ӣאƦϰ؊ȓېÛوը٬ز\nϪ");
+//bidiTests.push("ҾճٳџIՖӻ٥׭֐؜ڏ\nێ");
+//bidiTests.push("ҬÓФ؜ڂį٦Ͽɓڐͳٵ\nՈ");
+//bidiTests.push("aѴNijȻهˇ҃ڱӧǻֵ\na");
+//bidiTests.push(" a٧ا٢ ب جa\nS");
+
+for (var i = 0; i < bidiTests.length; ++i) {
+  testMoveBidi(bidiTests[i]);
+  testMoveEndBidi(bidiTests[i]);
+}
+
+/*
+for (var i = 0; i < 5; ++i) {
+  testMoveBidi(getString(12) + "\n" + getString(1));
+}
+*/
+
+function testCoordsWrappedBidi(str) {
+  testCM("coords_wrapped_bidi_" + str, function(cm) {
+    cm.getScrollerElement().style.fontFamily = "monospace";
+    makeItWrapAfter(cm, Pos(0, 5));
+
+    // Make sure we are at the visual beginning of the first line
+    var pos = Pos(0, 0), lastPos;
+    cm.doc.setCursor(pos);
+    do {
+      lastPos = pos;
+      cm.execCommand("goCharLeft");
+      pos = cm.doc.getCursor();
+    } while (pos != lastPos)
+
+    var top = cm.charCoords(Pos(0, 0)).top, lastTop;
+    for (var i = 1; i < str.length; ++i) {
+      lastTop = top;
+      top = cm.charCoords(Pos(0, i)).top;
+      is(top >= lastTop);
+    }
+  }, {value: str, lineWrapping: true})
+};
+
+testCoordsWrappedBidi("Count ١ ٢ ٣ ٤");
+/*
+for (var i = 0; i < 5; ++i) {
+  testCoordsWrappedBidi(getString(50));
+}
+*/
+
+testCM("delete_wrapped", function(cm) {
+  makeItWrapAfter(cm, Pos(0, 2));
+  cm.doc.setCursor(Pos(0, 3, "after"));
+  cm.deleteH(-1, "char");
+  eq(cm.getLine(0), "1245");
+}, {value: "12345", lineWrapping: true})
diff --git a/public/codemirror/test/vim_test.js b/public/codemirror/test/vim_test.js
new file mode 100644
index 000000000..36d452f02
--- /dev/null
+++ b/public/codemirror/test/vim_test.js
@@ -0,0 +1,4105 @@
+var Pos = CodeMirror.Pos;
+CodeMirror.Vim.suppressErrorLogging = true;
+
+var code = '' +
+' wOrd1 (#%\n' +
+' word3] \n' +
+'aopop pop 0 1 2 3 4\n' +
+' (a) [b] {c} \n' +
+'int getchar(void) {\n' +
+'  static char buf[BUFSIZ];\n' +
+'  static char *bufp = buf;\n' +
+'  if (n == 0) {  /* buffer is empty */\n' +
+'    n = read(0, buf, sizeof buf);\n' +
+'    bufp = buf;\n' +
+'  }\n' +
+'\n' +
+'  return (--n >= 0) ? (unsigned char) *bufp++ : EOF;\n' +
+' \n' +
+'}\n';
+
+var lines = (function() {
+  lineText = code.split('\n');
+  var ret = [];
+  for (var i = 0; i < lineText.length; i++) {
+    ret[i] = {
+      line: i,
+      length: lineText[i].length,
+      lineText: lineText[i],
+      textStart: /^\s*/.exec(lineText[i])[0].length
+    };
+  }
+  return ret;
+})();
+var endOfDocument = makeCursor(lines.length - 1,
+    lines[lines.length - 1].length);
+var wordLine = lines[0];
+var bigWordLine = lines[1];
+var charLine = lines[2];
+var bracesLine = lines[3];
+var seekBraceLine = lines[4];
+
+var word1 = {
+  start: new Pos(wordLine.line, 1),
+  end: new Pos(wordLine.line, 5)
+};
+var word2 = {
+  start: new Pos(wordLine.line, word1.end.ch + 2),
+  end: new Pos(wordLine.line, word1.end.ch + 4)
+};
+var word3 = {
+  start: new Pos(bigWordLine.line, 1),
+  end: new Pos(bigWordLine.line, 5)
+};
+var bigWord1 = word1;
+var bigWord2 = word2;
+var bigWord3 = {
+  start: new Pos(bigWordLine.line, 1),
+  end: new Pos(bigWordLine.line, 7)
+};
+var bigWord4 = {
+  start: new Pos(bigWordLine.line, bigWord1.end.ch + 3),
+  end: new Pos(bigWordLine.line, bigWord1.end.ch + 7)
+};
+
+var oChars = [ new Pos(charLine.line, 1),
+    new Pos(charLine.line, 3),
+    new Pos(charLine.line, 7) ];
+var pChars = [ new Pos(charLine.line, 2),
+    new Pos(charLine.line, 4),
+    new Pos(charLine.line, 6),
+    new Pos(charLine.line, 8) ];
+var numChars = [ new Pos(charLine.line, 10),
+    new Pos(charLine.line, 12),
+    new Pos(charLine.line, 14),
+    new Pos(charLine.line, 16),
+    new Pos(charLine.line, 18)];
+var parens1 = {
+  start: new Pos(bracesLine.line, 1),
+  end: new Pos(bracesLine.line, 3)
+};
+var squares1 = {
+  start: new Pos(bracesLine.line, 5),
+  end: new Pos(bracesLine.line, 7)
+};
+var curlys1 = {
+  start: new Pos(bracesLine.line, 9),
+  end: new Pos(bracesLine.line, 11)
+};
+var seekOutside = {
+  start: new Pos(seekBraceLine.line, 1),
+  end: new Pos(seekBraceLine.line, 16)
+};
+var seekInside = {
+  start: new Pos(seekBraceLine.line, 14),
+  end: new Pos(seekBraceLine.line, 11)
+};
+
+function copyCursor(cur) {
+  return new Pos(cur.line, cur.ch);
+}
+
+function forEach(arr, func) {
+  for (var i = 0; i < arr.length; i++) {
+    func(arr[i], i, arr);
+  }
+}
+
+function testVim(name, run, opts, expectedFail) {
+  var vimOpts = {
+    lineNumbers: true,
+    vimMode: true,
+    showCursorWhenSelecting: true,
+    value: code
+  };
+  for (var prop in opts) {
+    if (opts.hasOwnProperty(prop)) {
+      vimOpts[prop] = opts[prop];
+    }
+  }
+  return test('vim_' + name, function() {
+    var place = document.getElementById("testground");
+    var cm = CodeMirror(place, vimOpts);
+    var vim = CodeMirror.Vim.maybeInitVimState_(cm);
+
+    function doKeysFn(cm) {
+      return function(args) {
+        if (args instanceof Array) {
+          arguments = args;
+        }
+        for (var i = 0; i < arguments.length; i++) {
+          var result = CodeMirror.Vim.handleKey(cm, arguments[i]);
+          if (!result && cm.state.vim.insertMode) {
+            cm.replaceSelections(fillArray(arguments[i], cm.listSelections().length));
+          }
+        }
+      }
+    }
+    function doInsertModeKeysFn(cm) {
+      return function(args) {
+        if (args instanceof Array) { arguments = args; }
+        function executeHandler(handler) {
+          if (typeof handler == 'string') {
+            CodeMirror.commands[handler](cm);
+          } else {
+            handler(cm);
+          }
+          return true;
+        }
+        for (var i = 0; i < arguments.length; i++) {
+          var key = arguments[i];
+          // Find key in keymap and handle.
+          var handled = CodeMirror.lookupKey(key, cm.getOption('keyMap'), executeHandler, cm);
+          // Record for insert mode.
+          if (handled == "handled" && cm.state.vim.insertMode && arguments[i] != 'Esc') {
+            var lastChange = CodeMirror.Vim.getVimGlobalState_().macroModeState.lastInsertModeChanges;
+            if (lastChange && (key.indexOf('Delete') != -1 || key.indexOf('Backspace') != -1)) {
+              lastChange.changes.push(new CodeMirror.Vim.InsertModeKey(key));
+            }
+          }
+        }
+      }
+    }
+    function doExFn(cm) {
+      return function(command) {
+        cm.openDialog = helpers.fakeOpenDialog(command);
+        helpers.doKeys(':');
+      }
+    }
+    function assertCursorAtFn(cm) {
+      return function(line, ch) {
+        var pos;
+        if (ch == null && typeof line.line == 'number') {
+          pos = line;
+        } else {
+          pos = makeCursor(line, ch);
+        }
+        eqCursorPos(cm.getCursor(), pos);
+      }
+    }
+    function fakeOpenDialog(result) {
+      return function(text, callback) {
+        return callback(result);
+      }
+    }
+    function fakeOpenNotification(matcher) {
+      return function(text) {
+        matcher(text);
+      }
+    }
+    var helpers = {
+      doKeys: doKeysFn(cm),
+      // Warning: Only emulates keymap events, not character insertions. Use
+      // replaceRange to simulate character insertions.
+      // Keys are in CodeMirror format, NOT vim format.
+      doInsertModeKeys: doInsertModeKeysFn(cm),
+      doEx: doExFn(cm),
+      assertCursorAt: assertCursorAtFn(cm),
+      fakeOpenDialog: fakeOpenDialog,
+      fakeOpenNotification: fakeOpenNotification,
+      getRegisterController: function() {
+        return CodeMirror.Vim.getRegisterController();
+      }
+    }
+    CodeMirror.Vim.resetVimGlobalState_();
+    var successful = false;
+    var savedOpenNotification = cm.openNotification;
+    var savedOpenDialog = cm.openDialog;
+    try {
+      run(cm, vim, helpers);
+      successful = true;
+    } finally {
+      cm.openNotification = savedOpenNotification;
+      cm.openDialog = savedOpenDialog;
+      if (!successful || verbose) {
+        place.style.visibility = "visible";
+      } else {
+        place.removeChild(cm.getWrapperElement());
+      }
+    }
+  }, expectedFail);
+};
+testVim('qq@q', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('q', 'q', 'l', 'l', 'q');
+  helpers.assertCursorAt(0,2);
+  helpers.doKeys('@', 'q');
+  helpers.assertCursorAt(0,4);
+}, { value: '            '});
+testVim('@@', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('q', 'q', 'l', 'l', 'q');
+  helpers.assertCursorAt(0,2);
+  helpers.doKeys('@', 'q');
+  helpers.assertCursorAt(0,4);
+  helpers.doKeys('@', '@');
+  helpers.assertCursorAt(0,6);
+}, { value: '            '});
+var jumplistScene = ''+
+  'word\n'+
+  '(word)\n'+
+  '{word\n'+
+  'word.\n'+
+  '\n'+
+  'word search\n'+
+  '}word\n'+
+  'word\n'+
+  'word\n';
+function testJumplist(name, keys, endPos, startPos, dialog) {
+  endPos = makeCursor(endPos[0], endPos[1]);
+  startPos = makeCursor(startPos[0], startPos[1]);
+  testVim(name, function(cm, vim, helpers) {
+    CodeMirror.Vim.resetVimGlobalState_();
+    if(dialog)cm.openDialog = helpers.fakeOpenDialog('word');
+    cm.setCursor(startPos);
+    helpers.doKeys.apply(null, keys);
+    helpers.assertCursorAt(endPos);
+  }, {value: jumplistScene});
+};
+testJumplist('jumplist_H', ['H', ''], [5,2], [5,2]);
+testJumplist('jumplist_M', ['M', ''], [2,2], [2,2]);
+testJumplist('jumplist_L', ['L', ''], [2,2], [2,2]);
+testJumplist('jumplist_[[', ['[', '[', ''], [5,2], [5,2]);
+testJumplist('jumplist_]]', [']', ']', ''], [2,2], [2,2]);
+testJumplist('jumplist_G', ['G', ''], [5,2], [5,2]);
+testJumplist('jumplist_gg', ['g', 'g', ''], [5,2], [5,2]);
+testJumplist('jumplist_%', ['%', ''], [1,5], [1,5]);
+testJumplist('jumplist_{', ['{', ''], [1,5], [1,5]);
+testJumplist('jumplist_}', ['}', ''], [1,5], [1,5]);
+testJumplist('jumplist_\'', ['m', 'a', 'h', '\'', 'a', 'h', ''], [1,0], [1,5]);
+testJumplist('jumplist_`', ['m', 'a', 'h', '`', 'a', 'h', ''], [1,5], [1,5]);
+testJumplist('jumplist_*_cachedCursor', ['*', ''], [1,3], [1,3]);
+testJumplist('jumplist_#_cachedCursor', ['#', ''], [1,3], [1,3]);
+testJumplist('jumplist_n', ['#', 'n', ''], [1,1], [2,3]);
+testJumplist('jumplist_N', ['#', 'N', ''], [1,1], [2,3]);
+testJumplist('jumplist_repeat_', ['*', '*', '*', '3', ''], [2,3], [2,3]);
+testJumplist('jumplist_repeat_', ['*', '*', '*', '3', '', '2', ''], [5,0], [2,3]);
+testJumplist('jumplist_repeated_motion', ['3', '*', ''], [2,3], [2,3]);
+testJumplist('jumplist_/', ['/', ''], [2,3], [2,3], 'dialog');
+testJumplist('jumplist_?', ['?', ''], [2,3], [2,3], 'dialog');
+testJumplist('jumplist_skip_deleted_mark',
+             ['*', 'n', 'n', 'k', 'd', 'k', '', '', ''],
+             [0,2], [0,2]);
+testJumplist('jumplist_skip_deleted_mark',
+             ['*', 'n', 'n', 'k', 'd', 'k', '', '', ''],
+             [1,0], [0,2]);
+
+/**
+ * @param name Name of the test
+ * @param keys An array of keys or a string with a single key to simulate.
+ * @param endPos The expected end position of the cursor.
+ * @param startPos The position the cursor should start at, defaults to 0, 0.
+ */
+function testMotion(name, keys, endPos, startPos) {
+  testVim(name, function(cm, vim, helpers) {
+    if (!startPos) {
+      startPos = new Pos(0, 0);
+    }
+    cm.setCursor(startPos);
+    helpers.doKeys(keys);
+    helpers.assertCursorAt(endPos);
+  });
+};
+
+function makeCursor(line, ch) {
+  return new Pos(line, ch);
+};
+
+function offsetCursor(cur, offsetLine, offsetCh) {
+  return new Pos(cur.line + offsetLine, cur.ch + offsetCh);
+};
+
+// Motion tests
+testMotion('|', '|', makeCursor(0, 0), makeCursor(0,4));
+testMotion('|_repeat', ['3', '|'], makeCursor(0, 2), makeCursor(0,4));
+testMotion('h', 'h', makeCursor(0, 0), word1.start);
+testMotion('h_repeat', ['3', 'h'], offsetCursor(word1.end, 0, -3), word1.end);
+testMotion('l', 'l', makeCursor(0, 1));
+testMotion('l_repeat', ['2', 'l'], makeCursor(0, 2));
+testMotion('j', 'j', offsetCursor(word1.end, 1, 0), word1.end);
+testMotion('j_repeat', ['2', 'j'], offsetCursor(word1.end, 2, 0), word1.end);
+testMotion('j_repeat_clip', ['1000', 'j'], endOfDocument);
+testMotion('k', 'k', offsetCursor(word3.end, -1, 0), word3.end);
+testMotion('k_repeat', ['2', 'k'], makeCursor(0, 4), makeCursor(2, 4));
+testMotion('k_repeat_clip', ['1000', 'k'], makeCursor(0, 4), makeCursor(2, 4));
+testMotion('w', 'w', word1.start);
+testMotion('w_multiple_newlines_no_space', 'w', makeCursor(12, 2), makeCursor(11, 2));
+testMotion('w_multiple_newlines_with_space', 'w', makeCursor(14, 0), makeCursor(12, 51));
+testMotion('w_repeat', ['2', 'w'], word2.start);
+testMotion('w_wrap', ['w'], word3.start, word2.start);
+testMotion('w_endOfDocument', 'w', endOfDocument, endOfDocument);
+testMotion('w_start_to_end', ['1000', 'w'], endOfDocument, makeCursor(0, 0));
+testMotion('W', 'W', bigWord1.start);
+testMotion('W_repeat', ['2', 'W'], bigWord3.start, bigWord1.start);
+testMotion('e', 'e', word1.end);
+testMotion('e_repeat', ['2', 'e'], word2.end);
+testMotion('e_wrap', 'e', word3.end, word2.end);
+testMotion('e_endOfDocument', 'e', endOfDocument, endOfDocument);
+testMotion('e_start_to_end', ['1000', 'e'], endOfDocument, makeCursor(0, 0));
+testMotion('b', 'b', word3.start, word3.end);
+testMotion('b_repeat', ['2', 'b'], word2.start, word3.end);
+testMotion('b_wrap', 'b', word2.start, word3.start);
+testMotion('b_startOfDocument', 'b', makeCursor(0, 0), makeCursor(0, 0));
+testMotion('b_end_to_start', ['1000', 'b'], makeCursor(0, 0), endOfDocument);
+testMotion('ge', ['g', 'e'], word2.end, word3.end);
+testMotion('ge_repeat', ['2', 'g', 'e'], word1.end, word3.start);
+testMotion('ge_wrap', ['g', 'e'], word2.end, word3.start);
+testMotion('ge_startOfDocument', ['g', 'e'], makeCursor(0, 0),
+    makeCursor(0, 0));
+testMotion('ge_end_to_start', ['1000', 'g', 'e'], makeCursor(0, 0), endOfDocument);
+testMotion('gg', ['g', 'g'], makeCursor(lines[0].line, lines[0].textStart),
+    makeCursor(3, 1));
+testMotion('gg_repeat', ['3', 'g', 'g'],
+    makeCursor(lines[2].line, lines[2].textStart));
+testMotion('G', 'G',
+    makeCursor(lines[lines.length - 1].line, lines[lines.length - 1].textStart),
+    makeCursor(3, 1));
+testMotion('G_repeat', ['3', 'G'], makeCursor(lines[2].line,
+    lines[2].textStart));
+// TODO: Make the test code long enough to test Ctrl-F and Ctrl-B.
+testMotion('0', '0', makeCursor(0, 0), makeCursor(0, 8));
+testMotion('^', '^', makeCursor(0, lines[0].textStart), makeCursor(0, 8));
+testMotion('+', '+', makeCursor(1, lines[1].textStart), makeCursor(0, 8));
+testMotion('-', '-', makeCursor(0, lines[0].textStart), makeCursor(1, 4));
+testMotion('_', ['6','_'], makeCursor(5, lines[5].textStart), makeCursor(0, 8));
+testMotion('$', '$', makeCursor(0, lines[0].length - 1), makeCursor(0, 1));
+testMotion('$_repeat', ['2', '$'], makeCursor(1, lines[1].length - 1),
+    makeCursor(0, 3));
+testMotion('f', ['f', 'p'], pChars[0], makeCursor(charLine.line, 0));
+testMotion('f_repeat', ['2', 'f', 'p'], pChars[2], pChars[0]);
+testMotion('f_num', ['f', '2'], numChars[2], makeCursor(charLine.line, 0));
+testMotion('t', ['t','p'], offsetCursor(pChars[0], 0, -1),
+    makeCursor(charLine.line, 0));
+testMotion('t_repeat', ['2', 't', 'p'], offsetCursor(pChars[2], 0, -1),
+    pChars[0]);
+testMotion('F', ['F', 'p'], pChars[0], pChars[1]);
+testMotion('F_repeat', ['2', 'F', 'p'], pChars[0], pChars[2]);
+testMotion('T', ['T', 'p'], offsetCursor(pChars[0], 0, 1), pChars[1]);
+testMotion('T_repeat', ['2', 'T', 'p'], offsetCursor(pChars[0], 0, 1), pChars[2]);
+testMotion('%_parens', ['%'], parens1.end, parens1.start);
+testMotion('%_squares', ['%'], squares1.end, squares1.start);
+testMotion('%_braces', ['%'], curlys1.end, curlys1.start);
+testMotion('%_seek_outside', ['%'], seekOutside.end, seekOutside.start);
+testMotion('%_seek_inside', ['%'], seekInside.end, seekInside.start);
+testVim('%_seek_skip', function(cm, vim, helpers) {
+  cm.setCursor(0,0);
+  helpers.doKeys(['%']);
+  helpers.assertCursorAt(0,9);
+}, {value:'01234"("()'});
+testVim('%_skip_string', function(cm, vim, helpers) {
+  cm.setCursor(0,0);
+  helpers.doKeys(['%']);
+  helpers.assertCursorAt(0,4);
+  cm.setCursor(0,2);
+  helpers.doKeys(['%']);
+  helpers.assertCursorAt(0,0);
+}, {value:'(")")'});
+testVim('%_skip_comment', function(cm, vim, helpers) {
+  cm.setCursor(0,0);
+  helpers.doKeys(['%']);
+  helpers.assertCursorAt(0,6);
+  cm.setCursor(0,3);
+  helpers.doKeys(['%']);
+  helpers.assertCursorAt(0,0);
+}, {value:'(/*)*/)'});
+// Make sure that moving down after going to the end of a line always leaves you
+// at the end of a line, but preserves the offset in other cases
+testVim('Changing lines after Eol operation', function(cm, vim, helpers) {
+  cm.setCursor(0,0);
+  helpers.doKeys(['$']);
+  helpers.doKeys(['j']);
+  // After moving to Eol and then down, we should be at Eol of line 2
+  helpers.assertCursorAt(new Pos(1, lines[1].length - 1));
+  helpers.doKeys(['j']);
+  // After moving down, we should be at Eol of line 3
+  helpers.assertCursorAt(new Pos(2, lines[2].length - 1));
+  helpers.doKeys(['h']);
+  helpers.doKeys(['j']);
+  // After moving back one space and then down, since line 4 is shorter than line 2, we should
+  // be at Eol of line 2 - 1
+  helpers.assertCursorAt(new Pos(3, lines[3].length - 1));
+  helpers.doKeys(['j']);
+  helpers.doKeys(['j']);
+  // After moving down again, since line 3 has enough characters, we should be back to the
+  // same place we were at on line 1
+  helpers.assertCursorAt(new Pos(5, lines[2].length - 2));
+});
+//making sure gj and gk recover from clipping
+testVim('gj_gk_clipping', function(cm,vim,helpers){
+  cm.setCursor(0, 1);
+  helpers.doKeys('g','j','g','j');
+  helpers.assertCursorAt(2, 1);
+  helpers.doKeys('g','k','g','k');
+  helpers.assertCursorAt(0, 1);
+},{value: 'line 1\n\nline 2'});
+//testing a mix of j/k and gj/gk
+testVim('j_k_and_gj_gk', function(cm,vim,helpers){
+  cm.setSize(120);
+  cm.setCursor(0, 0);
+  //go to the last character on the first line
+  helpers.doKeys('$');
+  //move up/down on the column within the wrapped line
+  //side-effect: cursor is not locked to eol anymore
+  helpers.doKeys('g','k');
+  var cur=cm.getCursor();
+  eq(cur.line,0);
+  is((cur.ch<176),'gk didn\'t move cursor back (1)');
+  helpers.doKeys('g','j');
+  helpers.assertCursorAt(0, 176);
+  //should move to character 177 on line 2 (j/k preserve character index within line)
+  helpers.doKeys('j');
+  //due to different line wrapping, the cursor can be on a different screen-x now
+  //gj and gk preserve screen-x on movement, much like moveV
+  helpers.doKeys('3','g','k');
+  cur=cm.getCursor();
+  eq(cur.line,1);
+  is((cur.ch<176),'gk didn\'t move cursor back (2)');
+  helpers.doKeys('g','j','2','g','j');
+  //should return to the same character-index
+  helpers.doKeys('k');
+  helpers.assertCursorAt(0, 176);
+},{ lineWrapping:true, value: 'This line is intentially long to test movement of gj and gk over wrapped lines. I will start on the end of this line, then make a step up and back to set the origin for j and k.\nThis line is supposed to be even longer than the previous. I will jump here and make another wiggle with gj and gk, before I jump back to the line above. Both wiggles should not change my cursor\'s target character but both j/k and gj/gk change each other\'s reference position.'});
+testVim('gj_gk', function(cm, vim, helpers) {
+  if (phantom) return;
+  cm.setSize(120);
+  // Test top of document edge case.
+  cm.setCursor(0, 4);
+  helpers.doKeys('g', 'j');
+  helpers.doKeys('10', 'g', 'k');
+  helpers.assertCursorAt(0, 4);
+
+  // Test moving down preserves column position.
+  helpers.doKeys('g', 'j');
+  var pos1 = cm.getCursor();
+  var expectedPos2 = new Pos(0, (pos1.ch - 4) * 2 + 4);
+  helpers.doKeys('g', 'j');
+  helpers.assertCursorAt(expectedPos2);
+
+  // Move to the last character
+  cm.setCursor(0, 0);
+  // Move left to reset HSPos
+  helpers.doKeys('h');
+  // Test bottom of document edge case.
+  helpers.doKeys('100', 'g', 'j');
+  var endingPos = cm.getCursor();
+  is(endingPos != 0, 'gj should not be on wrapped line 0');
+  var topLeftCharCoords = cm.charCoords(makeCursor(0, 0));
+  var endingCharCoords = cm.charCoords(endingPos);
+  is(topLeftCharCoords.left == endingCharCoords.left, 'gj should end up on column 0');
+},{ lineNumbers: false, lineWrapping:true, value: 'Thislineisintentionallylongtotestmovementofgjandgkoverwrappedlines.' });
+testVim('}', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('}');
+  helpers.assertCursorAt(1, 0);
+  cm.setCursor(0, 0);
+  helpers.doKeys('2', '}');
+  helpers.assertCursorAt(4, 0);
+  cm.setCursor(0, 0);
+  helpers.doKeys('6', '}');
+  helpers.assertCursorAt(5, 0);
+}, { value: 'a\n\nb\nc\n\nd' });
+testVim('{', function(cm, vim, helpers) {
+  cm.setCursor(5, 0);
+  helpers.doKeys('{');
+  helpers.assertCursorAt(4, 0);
+  cm.setCursor(5, 0);
+  helpers.doKeys('2', '{');
+  helpers.assertCursorAt(1, 0);
+  cm.setCursor(5, 0);
+  helpers.doKeys('6', '{');
+  helpers.assertCursorAt(0, 0);
+}, { value: 'a\n\nb\nc\n\nd' });
+testVim('paragraph_motions', function(cm, vim, helpers) {
+  cm.setCursor(10, 0);
+  helpers.doKeys('{');
+  helpers.assertCursorAt(4, 0);
+  helpers.doKeys('{');
+  helpers.assertCursorAt(0, 0);
+  helpers.doKeys('2', '}');
+  helpers.assertCursorAt(7, 0);
+  helpers.doKeys('2', '}');
+  helpers.assertCursorAt(16, 0);
+
+  cm.setCursor(9, 0);
+  helpers.doKeys('}');
+  helpers.assertCursorAt(14, 0);
+
+  cm.setCursor(6, 0);
+  helpers.doKeys('}');
+  helpers.assertCursorAt(7, 0);
+
+  // ip inside empty space
+  cm.setCursor(10, 0);
+  helpers.doKeys('v', 'i', 'p');
+  eqCursorPos(Pos(7, 0), cm.getCursor('anchor'));
+  eqCursorPos(Pos(12, 0), cm.getCursor('head'));
+  helpers.doKeys('i', 'p');
+  eqCursorPos(Pos(7, 0), cm.getCursor('anchor'));
+  eqCursorPos(Pos(13, 1), cm.getCursor('head'));
+  helpers.doKeys('2', 'i', 'p');
+  eqCursorPos(Pos(7, 0), cm.getCursor('anchor'));
+  eqCursorPos(Pos(16, 1), cm.getCursor('head'));
+
+  // should switch to visualLine mode
+  cm.setCursor(14, 0);
+  helpers.doKeys('', 'v', 'i', 'p');
+  helpers.assertCursorAt(14, 0);
+
+  cm.setCursor(14, 0);
+  helpers.doKeys('', 'V', 'i', 'p');
+  eqCursorPos(Pos(16, 1), cm.getCursor('head'));
+
+  // ap inside empty space
+  cm.setCursor(10, 0);
+  helpers.doKeys('', 'v', 'a', 'p');
+  eqCursorPos(Pos(7, 0), cm.getCursor('anchor'));
+  eqCursorPos(Pos(13, 1), cm.getCursor('head'));
+  helpers.doKeys('a', 'p');
+  eqCursorPos(Pos(7, 0), cm.getCursor('anchor'));
+  eqCursorPos(Pos(16, 1), cm.getCursor('head'));
+
+  cm.setCursor(13, 0);
+  helpers.doKeys('v', 'a', 'p');
+  eqCursorPos(Pos(13, 0), cm.getCursor('anchor'));
+  eqCursorPos(Pos(14, 0), cm.getCursor('head'));
+
+  cm.setCursor(16, 0);
+  helpers.doKeys('v', 'a', 'p');
+  eqCursorPos(Pos(14, 0), cm.getCursor('anchor'));
+  eqCursorPos(Pos(16, 1), cm.getCursor('head'));
+
+  cm.setCursor(0, 0);
+  helpers.doKeys('v', 'a', 'p');
+  eqCursorPos(Pos(0, 0), cm.getCursor('anchor'));
+  eqCursorPos(Pos(4, 0), cm.getCursor('head'));
+
+  cm.setCursor(0, 0);
+  helpers.doKeys('d', 'i', 'p');
+  var register = helpers.getRegisterController().getRegister();
+  eq('a\na\n', register.toString());
+  is(register.linewise);
+  helpers.doKeys('3', 'j', 'p');
+  helpers.doKeys('y', 'i', 'p');
+  is(register.linewise);
+  eq('b\na\na\nc\n', register.toString());
+}, { value: 'a\na\n\n\n\nb\nc\n\n\n\n\n\n\nd\n\ne\nf' });
+
+// Operator tests
+testVim('dl', function(cm, vim, helpers) {
+  var curStart = makeCursor(0, 0);
+  cm.setCursor(curStart);
+  helpers.doKeys('d', 'l');
+  eq('word1 ', cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq(' ', register.toString());
+  is(!register.linewise);
+  eqCursorPos(curStart, cm.getCursor());
+}, { value: ' word1 ' });
+testVim('dl_eol', function(cm, vim, helpers) {
+  cm.setCursor(0, 6);
+  helpers.doKeys('d', 'l');
+  eq(' word1', cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq(' ', register.toString());
+  is(!register.linewise);
+  helpers.assertCursorAt(0, 5);
+}, { value: ' word1 ' });
+testVim('dl_repeat', function(cm, vim, helpers) {
+  var curStart = makeCursor(0, 0);
+  cm.setCursor(curStart);
+  helpers.doKeys('2', 'd', 'l');
+  eq('ord1 ', cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq(' w', register.toString());
+  is(!register.linewise);
+  eqCursorPos(curStart, cm.getCursor());
+}, { value: ' word1 ' });
+testVim('dh', function(cm, vim, helpers) {
+  var curStart = makeCursor(0, 3);
+  cm.setCursor(curStart);
+  helpers.doKeys('d', 'h');
+  eq(' wrd1 ', cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq('o', register.toString());
+  is(!register.linewise);
+  eqCursorPos(offsetCursor(curStart, 0 , -1), cm.getCursor());
+}, { value: ' word1 ' });
+testVim('dj', function(cm, vim, helpers) {
+  var curStart = makeCursor(0, 3);
+  cm.setCursor(curStart);
+  helpers.doKeys('d', 'j');
+  eq(' word3', cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq(' word1\nword2\n', register.toString());
+  is(register.linewise);
+  helpers.assertCursorAt(0, 1);
+}, { value: ' word1\nword2\n word3' });
+testVim('dj_end_of_document', function(cm, vim, helpers) {
+  var curStart = makeCursor(0, 3);
+  cm.setCursor(curStart);
+  helpers.doKeys('d', 'j');
+  eq('', cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq(' word1 \n', register.toString());
+  is(register.linewise);
+  helpers.assertCursorAt(0, 0);
+}, { value: ' word1 ' });
+testVim('dk', function(cm, vim, helpers) {
+  var curStart = makeCursor(1, 3);
+  cm.setCursor(curStart);
+  helpers.doKeys('d', 'k');
+  eq(' word3', cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq(' word1\nword2\n', register.toString());
+  is(register.linewise);
+  helpers.assertCursorAt(0, 1);
+}, { value: ' word1\nword2\n word3' });
+testVim('dk_start_of_document', function(cm, vim, helpers) {
+  var curStart = makeCursor(0, 3);
+  cm.setCursor(curStart);
+  helpers.doKeys('d', 'k');
+  eq('', cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq(' word1 \n', register.toString());
+  is(register.linewise);
+  helpers.assertCursorAt(0, 0);
+}, { value: ' word1 ' });
+testVim('dw_space', function(cm, vim, helpers) {
+  var curStart = makeCursor(0, 0);
+  cm.setCursor(curStart);
+  helpers.doKeys('d', 'w');
+  eq('word1 ', cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq(' ', register.toString());
+  is(!register.linewise);
+  eqCursorPos(curStart, cm.getCursor());
+}, { value: ' word1 ' });
+testVim('dw_word', function(cm, vim, helpers) {
+  var curStart = makeCursor(0, 1);
+  cm.setCursor(curStart);
+  helpers.doKeys('d', 'w');
+  eq(' word2', cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq('word1 ', register.toString());
+  is(!register.linewise);
+  eqCursorPos(curStart, cm.getCursor());
+}, { value: ' word1 word2' });
+testVim('dw_unicode_word', function(cm, vim, helpers) {
+  helpers.doKeys('d', 'w');
+  eq(cm.getValue().length, 10);
+  helpers.doKeys('d', 'w');
+  eq(cm.getValue().length, 6);
+  helpers.doKeys('d', 'w');
+  eq(cm.getValue().length, 5);
+  helpers.doKeys('d', 'e');
+  eq(cm.getValue().length, 2);
+}, { value: '  \u0562\u0561\u0580\u0587\xbbe\xb5g  ' });
+testVim('dw_only_word', function(cm, vim, helpers) {
+  // Test that if there is only 1 word left, dw deletes till the end of the
+  // line.
+  cm.setCursor(0, 1);
+  helpers.doKeys('d', 'w');
+  eq(' ', cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq('word1 ', register.toString());
+  is(!register.linewise);
+  helpers.assertCursorAt(0, 0);
+}, { value: ' word1 ' });
+testVim('dw_eol', function(cm, vim, helpers) {
+  // Assert that dw does not delete the newline if last word to delete is at end
+  // of line.
+  cm.setCursor(0, 1);
+  helpers.doKeys('d', 'w');
+  eq(' \nword2', cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq('word1', register.toString());
+  is(!register.linewise);
+  helpers.assertCursorAt(0, 0);
+}, { value: ' word1\nword2' });
+testVim('dw_eol_with_multiple_newlines', function(cm, vim, helpers) {
+  // Assert that dw does not delete the newline if last word to delete is at end
+  // of line and it is followed by multiple newlines.
+  cm.setCursor(0, 1);
+  helpers.doKeys('d', 'w');
+  eq(' \n\nword2', cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq('word1', register.toString());
+  is(!register.linewise);
+  helpers.assertCursorAt(0, 0);
+}, { value: ' word1\n\nword2' });
+testVim('dw_empty_line_followed_by_whitespace', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('d', 'w');
+  eq('  \nword', cm.getValue());
+}, { value: '\n  \nword' });
+testVim('dw_empty_line_followed_by_word', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('d', 'w');
+  eq('word', cm.getValue());
+}, { value: '\nword' });
+testVim('dw_empty_line_followed_by_empty_line', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('d', 'w');
+  eq('\n', cm.getValue());
+}, { value: '\n\n' });
+testVim('dw_whitespace_followed_by_whitespace', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('d', 'w');
+  eq('\n   \n', cm.getValue());
+}, { value: '  \n   \n' });
+testVim('dw_whitespace_followed_by_empty_line', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('d', 'w');
+  eq('\n\n', cm.getValue());
+}, { value: '  \n\n' });
+testVim('dw_word_whitespace_word', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('d', 'w');
+  eq('\n   \nword2', cm.getValue());
+}, { value: 'word1\n   \nword2'})
+testVim('dw_end_of_document', function(cm, vim, helpers) {
+  cm.setCursor(1, 2);
+  helpers.doKeys('d', 'w');
+  eq('\nab', cm.getValue());
+}, { value: '\nabc' });
+testVim('dw_repeat', function(cm, vim, helpers) {
+  // Assert that dw does delete newline if it should go to the next line, and
+  // that repeat works properly.
+  cm.setCursor(0, 1);
+  helpers.doKeys('d', '2', 'w');
+  eq(' ', cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq('word1\nword2', register.toString());
+  is(!register.linewise);
+  helpers.assertCursorAt(0, 0);
+}, { value: ' word1\nword2' });
+testVim('de_word_start_and_empty_lines', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('d', 'e');
+  eq('\n\n', cm.getValue());
+}, { value: 'word\n\n' });
+testVim('de_word_end_and_empty_lines', function(cm, vim, helpers) {
+  cm.setCursor(0, 3);
+  helpers.doKeys('d', 'e');
+  eq('wor', cm.getValue());
+}, { value: 'word\n\n\n' });
+testVim('de_whitespace_and_empty_lines', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('d', 'e');
+  eq('', cm.getValue());
+}, { value: '   \n\n\n' });
+testVim('de_end_of_document', function(cm, vim, helpers) {
+  cm.setCursor(1, 2);
+  helpers.doKeys('d', 'e');
+  eq('\nab', cm.getValue());
+}, { value: '\nabc' });
+testVim('db_empty_lines', function(cm, vim, helpers) {
+  cm.setCursor(2, 0);
+  helpers.doKeys('d', 'b');
+  eq('\n\n', cm.getValue());
+}, { value: '\n\n\n' });
+testVim('db_word_start_and_empty_lines', function(cm, vim, helpers) {
+  cm.setCursor(2, 0);
+  helpers.doKeys('d', 'b');
+  eq('\nword', cm.getValue());
+}, { value: '\n\nword' });
+testVim('db_word_end_and_empty_lines', function(cm, vim, helpers) {
+  cm.setCursor(2, 3);
+  helpers.doKeys('d', 'b');
+  eq('\n\nd', cm.getValue());
+}, { value: '\n\nword' });
+testVim('db_whitespace_and_empty_lines', function(cm, vim, helpers) {
+  cm.setCursor(2, 0);
+  helpers.doKeys('d', 'b');
+  eq('', cm.getValue());
+}, { value: '\n   \n' });
+testVim('db_start_of_document', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('d', 'b');
+  eq('abc\n', cm.getValue());
+}, { value: 'abc\n' });
+testVim('dge_empty_lines', function(cm, vim, helpers) {
+  cm.setCursor(1, 0);
+  helpers.doKeys('d', 'g', 'e');
+  // Note: In real VIM the result should be '', but it's not quite consistent,
+  // since 2 newlines are deleted. But in the similar case of word\n\n, only
+  // 1 newline is deleted. We'll diverge from VIM's behavior since it's much
+  // easier this way.
+  eq('\n', cm.getValue());
+}, { value: '\n\n' });
+testVim('dge_word_and_empty_lines', function(cm, vim, helpers) {
+  cm.setCursor(1, 0);
+  helpers.doKeys('d', 'g', 'e');
+  eq('wor\n', cm.getValue());
+}, { value: 'word\n\n'});
+testVim('dge_whitespace_and_empty_lines', function(cm, vim, helpers) {
+  cm.setCursor(2, 0);
+  helpers.doKeys('d', 'g', 'e');
+  eq('', cm.getValue());
+}, { value: '\n  \n' });
+testVim('dge_start_of_document', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('d', 'g', 'e');
+  eq('bc\n', cm.getValue());
+}, { value: 'abc\n' });
+testVim('d_inclusive', function(cm, vim, helpers) {
+  // Assert that when inclusive is set, the character the cursor is on gets
+  // deleted too.
+  var curStart = makeCursor(0, 1);
+  cm.setCursor(curStart);
+  helpers.doKeys('d', 'e');
+  eq('  ', cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq('word1', register.toString());
+  is(!register.linewise);
+  eqCursorPos(curStart, cm.getCursor());
+}, { value: ' word1 ' });
+testVim('d_reverse', function(cm, vim, helpers) {
+  // Test that deleting in reverse works.
+  cm.setCursor(1, 0);
+  helpers.doKeys('d', 'b');
+  eq(' word2 ', cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq('word1\n', register.toString());
+  is(!register.linewise);
+  helpers.assertCursorAt(0, 1);
+}, { value: ' word1\nword2 ' });
+testVim('dd', function(cm, vim, helpers) {
+  cm.setCursor(0, 3);
+  var expectedBuffer = cm.getRange(new Pos(0, 0),
+    new Pos(1, 0));
+  var expectedLineCount = cm.lineCount() - 1;
+  helpers.doKeys('d', 'd');
+  eq(expectedLineCount, cm.lineCount());
+  var register = helpers.getRegisterController().getRegister();
+  eq(expectedBuffer, register.toString());
+  is(register.linewise);
+  helpers.assertCursorAt(0, lines[1].textStart);
+});
+testVim('dd_prefix_repeat', function(cm, vim, helpers) {
+  cm.setCursor(0, 3);
+  var expectedBuffer = cm.getRange(new Pos(0, 0),
+    new Pos(2, 0));
+  var expectedLineCount = cm.lineCount() - 2;
+  helpers.doKeys('2', 'd', 'd');
+  eq(expectedLineCount, cm.lineCount());
+  var register = helpers.getRegisterController().getRegister();
+  eq(expectedBuffer, register.toString());
+  is(register.linewise);
+  helpers.assertCursorAt(0, lines[2].textStart);
+});
+testVim('dd_motion_repeat', function(cm, vim, helpers) {
+  cm.setCursor(0, 3);
+  var expectedBuffer = cm.getRange(new Pos(0, 0),
+    new Pos(2, 0));
+  var expectedLineCount = cm.lineCount() - 2;
+  helpers.doKeys('d', '2', 'd');
+  eq(expectedLineCount, cm.lineCount());
+  var register = helpers.getRegisterController().getRegister();
+  eq(expectedBuffer, register.toString());
+  is(register.linewise);
+  helpers.assertCursorAt(0, lines[2].textStart);
+});
+testVim('dd_multiply_repeat', function(cm, vim, helpers) {
+  cm.setCursor(0, 3);
+  var expectedBuffer = cm.getRange(new Pos(0, 0),
+    new Pos(6, 0));
+  var expectedLineCount = cm.lineCount() - 6;
+  helpers.doKeys('2', 'd', '3', 'd');
+  eq(expectedLineCount, cm.lineCount());
+  var register = helpers.getRegisterController().getRegister();
+  eq(expectedBuffer, register.toString());
+  is(register.linewise);
+  helpers.assertCursorAt(0, lines[6].textStart);
+});
+testVim('dd_lastline', function(cm, vim, helpers) {
+  cm.setCursor(cm.lineCount(), 0);
+  var expectedLineCount = cm.lineCount() - 1;
+  helpers.doKeys('d', 'd');
+  eq(expectedLineCount, cm.lineCount());
+  helpers.assertCursorAt(cm.lineCount() - 1, 0);
+});
+testVim('dd_only_line', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  var expectedRegister = cm.getValue() + "\n";
+  helpers.doKeys('d','d');
+  eq(1, cm.lineCount());
+  eq('', cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq(expectedRegister, register.toString());
+}, { value: "thisistheonlyline" });
+// Yank commands should behave the exact same as d commands, expect that nothing
+// gets deleted.
+testVim('yw_repeat', function(cm, vim, helpers) {
+  // Assert that yw does yank newline if it should go to the next line, and
+  // that repeat works properly.
+  var curStart = makeCursor(0, 1);
+  cm.setCursor(curStart);
+  helpers.doKeys('y', '2', 'w');
+  eq(' word1\nword2', cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq('word1\nword2', register.toString());
+  is(!register.linewise);
+  eqCursorPos(curStart, cm.getCursor());
+}, { value: ' word1\nword2' });
+testVim('yy_multiply_repeat', function(cm, vim, helpers) {
+  var curStart = makeCursor(0, 3);
+  cm.setCursor(curStart);
+  var expectedBuffer = cm.getRange(new Pos(0, 0),
+    new Pos(6, 0));
+  var expectedLineCount = cm.lineCount();
+  helpers.doKeys('2', 'y', '3', 'y');
+  eq(expectedLineCount, cm.lineCount());
+  var register = helpers.getRegisterController().getRegister();
+  eq(expectedBuffer, register.toString());
+  is(register.linewise);
+  eqCursorPos(curStart, cm.getCursor());
+});
+// Change commands behave like d commands except that it also enters insert
+// mode. In addition, when the change is linewise, an additional newline is
+// inserted so that insert mode starts on that line.
+testVim('cw', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('c', '2', 'w');
+  eq(' word3', cm.getValue());
+  helpers.assertCursorAt(0, 0);
+}, { value: 'word1 word2 word3'});
+testVim('cw_repeat', function(cm, vim, helpers) {
+  // Assert that cw does delete newline if it should go to the next line, and
+  // that repeat works properly.
+  var curStart = makeCursor(0, 1);
+  cm.setCursor(curStart);
+  helpers.doKeys('c', '2', 'w');
+  eq(' ', cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq('word1\nword2', register.toString());
+  is(!register.linewise);
+  eqCursorPos(curStart, cm.getCursor());
+  eq('vim-insert', cm.getOption('keyMap'));
+}, { value: ' word1\nword2' });
+testVim('cc_multiply_repeat', function(cm, vim, helpers) {
+  cm.setCursor(0, 3);
+  var expectedBuffer = cm.getRange(new Pos(0, 0),
+    new Pos(6, 0));
+  var expectedLineCount = cm.lineCount() - 5;
+  helpers.doKeys('2', 'c', '3', 'c');
+  eq(expectedLineCount, cm.lineCount());
+  var register = helpers.getRegisterController().getRegister();
+  eq(expectedBuffer, register.toString());
+  is(register.linewise);
+  eq('vim-insert', cm.getOption('keyMap'));
+});
+testVim('ct', function(cm, vim, helpers) {
+  cm.setCursor(0, 9);
+  helpers.doKeys('c', 't', 'w');
+  eq('  word1  word3', cm.getValue());
+  helpers.doKeys('', 'c', '|');
+  eq(' word3', cm.getValue());
+  helpers.assertCursorAt(0, 0);
+  helpers.doKeys('', '2', 'u', 'w', 'h');
+  helpers.doKeys('c', '2', 'g', 'e');
+  eq('  wordword3', cm.getValue());
+}, { value: '  word1  word2  word3'});
+testVim('cc_should_not_append_to_document', function(cm, vim, helpers) {
+  var expectedLineCount = cm.lineCount();
+  cm.setCursor(cm.lastLine(), 0);
+  helpers.doKeys('c', 'c');
+  eq(expectedLineCount, cm.lineCount());
+});
+function fillArray(val, times) {
+  var arr = [];
+  for (var i = 0; i < times; i++) {
+    arr.push(val);
+  }
+  return arr;
+}
+testVim('c_visual_block', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.doKeys('', '2', 'j', 'l', 'l', 'l', 'c');
+  var replacement = fillArray('hello', 3);
+  cm.replaceSelections(replacement);
+  eq('1hello\n5hello\nahellofg', cm.getValue());
+  helpers.doKeys('');
+  cm.setCursor(2, 3);
+  helpers.doKeys('', '2', 'k', 'h', 'C');
+  replacement = fillArray('world', 3);
+  cm.replaceSelections(replacement);
+  eq('1hworld\n5hworld\nahworld', cm.getValue());
+}, {value: '1234\n5678\nabcdefg'});
+testVim('c_visual_block_replay', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.doKeys('', '2', 'j', 'l', 'c');
+  var replacement = fillArray('fo', 3);
+  cm.replaceSelections(replacement);
+  eq('1fo4\n5fo8\nafodefg', cm.getValue());
+  helpers.doKeys('');
+  cm.setCursor(0, 0);
+  helpers.doKeys('.');
+  eq('foo4\nfoo8\nfoodefg', cm.getValue());
+}, {value: '1234\n5678\nabcdefg'});
+
+testVim('d_visual_block', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.doKeys('', '2', 'j', 'l', 'l', 'l', 'd');
+  eq('1\n5\nafg', cm.getValue());
+}, {value: '1234\n5678\nabcdefg'});
+testVim('D_visual_block', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.doKeys('', '2', 'j', 'l', 'D');
+  eq('1\n5\na', cm.getValue());
+}, {value: '1234\n5678\nabcdefg'});
+
+testVim('s_visual_block', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.doKeys('', '2', 'j', 'l', 'l', 'l', 's');
+  var replacement = fillArray('hello{', 3);
+  cm.replaceSelections(replacement);
+  eq('1hello{\n5hello{\nahello{fg\n', cm.getValue());
+  helpers.doKeys('');
+  cm.setCursor(2, 3);
+  helpers.doKeys('', '1', 'k', 'h', 'S');
+  replacement = fillArray('world', 1);
+  cm.replaceSelections(replacement);
+  eq('1hello{\n  world\n', cm.getValue());
+}, {value: '1234\n5678\nabcdefg\n'});
+
+// Swapcase commands edit in place and do not modify registers.
+testVim('g~w_repeat', function(cm, vim, helpers) {
+  // Assert that dw does delete newline if it should go to the next line, and
+  // that repeat works properly.
+  var curStart = makeCursor(0, 1);
+  cm.setCursor(curStart);
+  helpers.doKeys('g', '~', '2', 'w');
+  eq(' WORD1\nWORD2', cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq('', register.toString());
+  is(!register.linewise);
+  eqCursorPos(curStart, cm.getCursor());
+}, { value: ' word1\nword2' });
+testVim('g~g~', function(cm, vim, helpers) {
+  var curStart = makeCursor(0, 3);
+  cm.setCursor(curStart);
+  var expectedLineCount = cm.lineCount();
+  var expectedValue = cm.getValue().toUpperCase();
+  helpers.doKeys('2', 'g', '~', '3', 'g', '~');
+  eq(expectedValue, cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq('', register.toString());
+  is(!register.linewise);
+  eqCursorPos(curStart, cm.getCursor());
+}, { value: ' word1\nword2\nword3\nword4\nword5\nword6' });
+testVim('gu_and_gU', function(cm, vim, helpers) {
+  var curStart = makeCursor(0, 7);
+  var value = cm.getValue();
+  cm.setCursor(curStart);
+  helpers.doKeys('2', 'g', 'U', 'w');
+  eq(cm.getValue(), 'wa wb xX WC wd');
+  eqCursorPos(curStart, cm.getCursor());
+  helpers.doKeys('2', 'g', 'u', 'w');
+  eq(cm.getValue(), value);
+
+  helpers.doKeys('2', 'g', 'U', 'B');
+  eq(cm.getValue(), 'wa WB Xx wc wd');
+  eqCursorPos(makeCursor(0, 3), cm.getCursor());
+
+  cm.setCursor(makeCursor(0, 4));
+  helpers.doKeys('g', 'u', 'i', 'w');
+  eq(cm.getValue(), 'wa wb Xx wc wd');
+  eqCursorPos(makeCursor(0, 3), cm.getCursor());
+
+  // TODO: support gUgU guu
+  // eqCursorPos(makeCursor(0, 0), cm.getCursor());
+
+  var register = helpers.getRegisterController().getRegister();
+  eq('', register.toString());
+  is(!register.linewise);
+}, { value: 'wa wb xx wc wd' });
+testVim('visual_block_~', function(cm, vim, helpers) {
+  cm.setCursor(1, 1);
+  helpers.doKeys('', 'l', 'l', 'j', '~');
+  helpers.assertCursorAt(1, 1);
+  eq('hello\nwoRLd\naBCDe', cm.getValue());
+  cm.setCursor(2, 0);
+  helpers.doKeys('v', 'l', 'l', '~');
+  helpers.assertCursorAt(2, 0);
+  eq('hello\nwoRLd\nAbcDe', cm.getValue());
+},{value: 'hello\nwOrld\nabcde' });
+testVim('._swapCase_visualBlock', function(cm, vim, helpers) {
+  helpers.doKeys('', 'j', 'j', 'l', '~');
+  cm.setCursor(0, 3);
+  helpers.doKeys('.');
+  eq('HelLO\nWorLd\nAbcdE', cm.getValue());
+},{value: 'hEllo\nwOrlD\naBcDe' });
+testVim('._delete_visualBlock', function(cm, vim, helpers) {
+  helpers.doKeys('', 'j', 'x');
+  eq('ive\ne\nsome\nsugar', cm.getValue());
+  helpers.doKeys('.');
+  eq('ve\n\nsome\nsugar', cm.getValue());
+  helpers.doKeys('j', 'j', '.');
+  eq('ve\n\nome\nugar', cm.getValue());
+  helpers.doKeys('u', '', '.');
+  eq('ve\n\nme\ngar', cm.getValue());
+},{value: 'give\nme\nsome\nsugar' });
+testVim('>{motion}', function(cm, vim, helpers) {
+  cm.setCursor(1, 3);
+  var expectedLineCount = cm.lineCount();
+  var expectedValue = '   word1\n  word2\nword3 ';
+  helpers.doKeys('>', 'k');
+  eq(expectedValue, cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq('', register.toString());
+  is(!register.linewise);
+  helpers.assertCursorAt(0, 3);
+}, { value: ' word1\nword2\nword3 ', indentUnit: 2 });
+testVim('>>', function(cm, vim, helpers) {
+  cm.setCursor(0, 3);
+  var expectedLineCount = cm.lineCount();
+  var expectedValue = '   word1\n  word2\nword3 ';
+  helpers.doKeys('2', '>', '>');
+  eq(expectedValue, cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq('', register.toString());
+  is(!register.linewise);
+  helpers.assertCursorAt(0, 3);
+}, { value: ' word1\nword2\nword3 ', indentUnit: 2 });
+testVim('<{motion}', function(cm, vim, helpers) {
+  cm.setCursor(1, 3);
+  var expectedLineCount = cm.lineCount();
+  var expectedValue = ' word1\nword2\nword3 ';
+  helpers.doKeys('<', 'k');
+  eq(expectedValue, cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq('', register.toString());
+  is(!register.linewise);
+  helpers.assertCursorAt(0, 1);
+}, { value: '   word1\n  word2\nword3 ', indentUnit: 2 });
+testVim('<<', function(cm, vim, helpers) {
+  cm.setCursor(0, 3);
+  var expectedLineCount = cm.lineCount();
+  var expectedValue = ' word1\nword2\nword3 ';
+  helpers.doKeys('2', '<', '<');
+  eq(expectedValue, cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq('', register.toString());
+  is(!register.linewise);
+  helpers.assertCursorAt(0, 1);
+}, { value: '   word1\n  word2\nword3 ', indentUnit: 2 });
+
+// Edit tests
+function testEdit(name, before, pos, edit, after) {
+  return testVim(name, function(cm, vim, helpers) {
+             var ch = before.search(pos)
+             var line = before.substring(0, ch).split('\n').length - 1;
+             if (line) {
+               ch = before.substring(0, ch).split('\n').pop().length;
+             }
+             cm.setCursor(line, ch);
+             helpers.doKeys.apply(this, edit.split(''));
+             eq(after, cm.getValue());
+           }, {value: before});
+}
+
+// These Delete tests effectively cover word-wise Change, Visual & Yank.
+// Tabs are used as differentiated whitespace to catch edge cases.
+// Normal word:
+testEdit('diw_mid_spc', 'foo \tbAr\t baz', /A/, 'diw', 'foo \t\t baz');
+testEdit('daw_mid_spc', 'foo \tbAr\t baz', /A/, 'daw', 'foo \tbaz');
+testEdit('diw_mid_punct', 'foo \tbAr.\t baz', /A/, 'diw', 'foo \t.\t baz');
+testEdit('daw_mid_punct', 'foo \tbAr.\t baz', /A/, 'daw', 'foo.\t baz');
+testEdit('diw_mid_punct2', 'foo \t,bAr.\t baz', /A/, 'diw', 'foo \t,.\t baz');
+testEdit('daw_mid_punct2', 'foo \t,bAr.\t baz', /A/, 'daw', 'foo \t,.\t baz');
+testEdit('diw_start_spc', 'bAr \tbaz', /A/, 'diw', ' \tbaz');
+testEdit('daw_start_spc', 'bAr \tbaz', /A/, 'daw', 'baz');
+testEdit('diw_start_punct', 'bAr. \tbaz', /A/, 'diw', '. \tbaz');
+testEdit('daw_start_punct', 'bAr. \tbaz', /A/, 'daw', '. \tbaz');
+testEdit('diw_end_spc', 'foo \tbAr', /A/, 'diw', 'foo \t');
+testEdit('daw_end_spc', 'foo \tbAr', /A/, 'daw', 'foo');
+testEdit('diw_end_punct', 'foo \tbAr.', /A/, 'diw', 'foo \t.');
+testEdit('daw_end_punct', 'foo \tbAr.', /A/, 'daw', 'foo.');
+// Big word:
+testEdit('diW_mid_spc', 'foo \tbAr\t baz', /A/, 'diW', 'foo \t\t baz');
+testEdit('daW_mid_spc', 'foo \tbAr\t baz', /A/, 'daW', 'foo \tbaz');
+testEdit('diW_mid_punct', 'foo \tbAr.\t baz', /A/, 'diW', 'foo \t\t baz');
+testEdit('daW_mid_punct', 'foo \tbAr.\t baz', /A/, 'daW', 'foo \tbaz');
+testEdit('diW_mid_punct2', 'foo \t,bAr.\t baz', /A/, 'diW', 'foo \t\t baz');
+testEdit('daW_mid_punct2', 'foo \t,bAr.\t baz', /A/, 'daW', 'foo \tbaz');
+testEdit('diW_start_spc', 'bAr\t baz', /A/, 'diW', '\t baz');
+testEdit('daW_start_spc', 'bAr\t baz', /A/, 'daW', 'baz');
+testEdit('diW_start_punct', 'bAr.\t baz', /A/, 'diW', '\t baz');
+testEdit('daW_start_punct', 'bAr.\t baz', /A/, 'daW', 'baz');
+testEdit('diW_end_spc', 'foo \tbAr', /A/, 'diW', 'foo \t');
+testEdit('daW_end_spc', 'foo \tbAr', /A/, 'daW', 'foo');
+testEdit('diW_end_punct', 'foo \tbAr.', /A/, 'diW', 'foo \t');
+testEdit('daW_end_punct', 'foo \tbAr.', /A/, 'daW', 'foo');
+// Deleting text objects
+//    Open and close on same line
+testEdit('di(_open_spc', 'foo (bAr) baz', /\(/, 'di(', 'foo () baz');
+testEdit('di)_open_spc', 'foo (bAr) baz', /\(/, 'di)', 'foo () baz');
+testEdit('dib_open_spc', 'foo (bAr) baz', /\(/, 'dib', 'foo () baz');
+testEdit('da(_open_spc', 'foo (bAr) baz', /\(/, 'da(', 'foo  baz');
+testEdit('da)_open_spc', 'foo (bAr) baz', /\(/, 'da)', 'foo  baz');
+
+testEdit('di(_middle_spc', 'foo (bAr) baz', /A/, 'di(', 'foo () baz');
+testEdit('di)_middle_spc', 'foo (bAr) baz', /A/, 'di)', 'foo () baz');
+testEdit('da(_middle_spc', 'foo (bAr) baz', /A/, 'da(', 'foo  baz');
+testEdit('da)_middle_spc', 'foo (bAr) baz', /A/, 'da)', 'foo  baz');
+
+testEdit('di(_close_spc', 'foo (bAr) baz', /\)/, 'di(', 'foo () baz');
+testEdit('di)_close_spc', 'foo (bAr) baz', /\)/, 'di)', 'foo () baz');
+testEdit('da(_close_spc', 'foo (bAr) baz', /\)/, 'da(', 'foo  baz');
+testEdit('da)_close_spc', 'foo (bAr) baz', /\)/, 'da)', 'foo  baz');
+
+//  delete around and inner b.
+testEdit('dab_on_(_should_delete_around_()block', 'o( in(abc) )', /\(a/, 'dab', 'o( in )');
+
+//  delete around and inner B.
+testEdit('daB_on_{_should_delete_around_{}block', 'o{ in{abc} }', /{a/, 'daB', 'o{ in }');
+testEdit('diB_on_{_should_delete_inner_{}block', 'o{ in{abc} }', /{a/, 'diB', 'o{ in{} }');
+
+testEdit('da{_on_{_should_delete_inner_block', 'o{ in{abc} }', /{a/, 'da{', 'o{ in }');
+testEdit('di[_on_(_should_not_delete', 'foo (bAr) baz', /\(/, 'di[', 'foo (bAr) baz');
+testEdit('di[_on_)_should_not_delete', 'foo (bAr) baz', /\)/, 'di[', 'foo (bAr) baz');
+testEdit('da[_on_(_should_not_delete', 'foo (bAr) baz', /\(/, 'da[', 'foo (bAr) baz');
+testEdit('da[_on_)_should_not_delete', 'foo (bAr) baz', /\)/, 'da[', 'foo (bAr) baz');
+testMotion('di(_outside_should_stay', ['d', 'i', '('], new Pos(0, 0), new Pos(0, 0));
+
+//  Open and close on different lines, equally indented
+testEdit('di{_middle_spc', 'a{\n\tbar\n}b', /r/, 'di{', 'a{}b');
+testEdit('di}_middle_spc', 'a{\n\tbar\n}b', /r/, 'di}', 'a{}b');
+testEdit('da{_middle_spc', 'a{\n\tbar\n}b', /r/, 'da{', 'ab');
+testEdit('da}_middle_spc', 'a{\n\tbar\n}b', /r/, 'da}', 'ab');
+testEdit('daB_middle_spc', 'a{\n\tbar\n}b', /r/, 'daB', 'ab');
+
+// open and close on diff lines, open indented less than close
+testEdit('di{_middle_spc', 'a{\n\tbar\n\t}b', /r/, 'di{', 'a{}b');
+testEdit('di}_middle_spc', 'a{\n\tbar\n\t}b', /r/, 'di}', 'a{}b');
+testEdit('da{_middle_spc', 'a{\n\tbar\n\t}b', /r/, 'da{', 'ab');
+testEdit('da}_middle_spc', 'a{\n\tbar\n\t}b', /r/, 'da}', 'ab');
+
+// open and close on diff lines, open indented more than close
+testEdit('di[_middle_spc', 'a\t[\n\tbar\n]b', /r/, 'di[', 'a\t[]b');
+testEdit('di]_middle_spc', 'a\t[\n\tbar\n]b', /r/, 'di]', 'a\t[]b');
+testEdit('da[_middle_spc', 'a\t[\n\tbar\n]b', /r/, 'da[', 'a\tb');
+testEdit('da]_middle_spc', 'a\t[\n\tbar\n]b', /r/, 'da]', 'a\tb');
+
+function testSelection(name, before, pos, keys, sel) {
+  return testVim(name, function(cm, vim, helpers) {
+             var ch = before.search(pos)
+             var line = before.substring(0, ch).split('\n').length - 1;
+             if (line) {
+               ch = before.substring(0, ch).split('\n').pop().length;
+             }
+             cm.setCursor(line, ch);
+             helpers.doKeys.apply(this, keys.split(''));
+             eq(sel, cm.getSelection());
+           }, {value: before});
+}
+testSelection('viw_middle_spc', 'foo \tbAr\t baz', /A/, 'viw', 'bAr');
+testSelection('vaw_middle_spc', 'foo \tbAr\t baz', /A/, 'vaw', 'bAr\t ');
+testSelection('viw_middle_punct', 'foo \tbAr,\t baz', /A/, 'viw', 'bAr');
+testSelection('vaW_middle_punct', 'foo \tbAr,\t baz', /A/, 'vaW', 'bAr,\t ');
+testSelection('viw_start_spc', 'foo \tbAr\t baz', /b/, 'viw', 'bAr');
+testSelection('viw_end_spc', 'foo \tbAr\t baz', /r/, 'viw', 'bAr');
+testSelection('viw_eol', 'foo \tbAr', /r/, 'viw', 'bAr');
+testSelection('vi{_middle_spc', 'a{\n\tbar\n\t}b', /r/, 'vi{', '\n\tbar\n\t');
+testSelection('va{_middle_spc', 'a{\n\tbar\n\t}b', /r/, 'va{', '{\n\tbar\n\t}');
+
+testVim('mouse_select', function(cm, vim, helpers) {
+  cm.setSelection(Pos(0, 2), Pos(0, 4), {origin: '*mouse'});
+  is(cm.state.vim.visualMode);
+  is(!cm.state.vim.visualLine);
+  is(!cm.state.vim.visualBlock);
+  helpers.doKeys('');
+  is(!cm.somethingSelected());
+  helpers.doKeys('g', 'v');
+  eq('cd', cm.getSelection());
+}, {value: 'abcdef'});
+
+// Operator-motion tests
+testVim('D', function(cm, vim, helpers) {
+  cm.setCursor(0, 3);
+  helpers.doKeys('D');
+  eq(' wo\nword2\n word3', cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq('rd1', register.toString());
+  is(!register.linewise);
+  helpers.assertCursorAt(0, 2);
+}, { value: ' word1\nword2\n word3' });
+testVim('C', function(cm, vim, helpers) {
+  var curStart = makeCursor(0, 3);
+  cm.setCursor(curStart);
+  helpers.doKeys('C');
+  eq(' wo\nword2\n word3', cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq('rd1', register.toString());
+  is(!register.linewise);
+  eqCursorPos(curStart, cm.getCursor());
+  eq('vim-insert', cm.getOption('keyMap'));
+}, { value: ' word1\nword2\n word3' });
+testVim('Y', function(cm, vim, helpers) {
+  var curStart = makeCursor(0, 3);
+  cm.setCursor(curStart);
+  helpers.doKeys('Y');
+  eq(' word1\nword2\n word3', cm.getValue());
+  var register = helpers.getRegisterController().getRegister();
+  eq(' word1\n', register.toString());
+  is(register.linewise);
+  helpers.assertCursorAt(0, 3);
+}, { value: ' word1\nword2\n word3' });
+testVim('~', function(cm, vim, helpers) {
+  helpers.doKeys('3', '~');
+  eq('ABCdefg', cm.getValue());
+  helpers.assertCursorAt(0, 3);
+}, { value: 'abcdefg' });
+
+// Action tests
+testVim('ctrl-a', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('');
+  eq('-9', cm.getValue());
+  helpers.assertCursorAt(0, 1);
+  helpers.doKeys('2','');
+  eq('-7', cm.getValue());
+}, {value: '-10'});
+testVim('ctrl-x', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('');
+  eq('-1', cm.getValue());
+  helpers.assertCursorAt(0, 1);
+  helpers.doKeys('2','');
+  eq('-3', cm.getValue());
+}, {value: '0'});
+testVim('/ search forward', function(cm, vim, helpers) {
+  forEach(['', ''], function(key) {
+    cm.setCursor(0, 0);
+    helpers.doKeys(key);
+    helpers.assertCursorAt(0, 5);
+    helpers.doKeys('l');
+    helpers.doKeys(key);
+    helpers.assertCursorAt(0, 10);
+    cm.setCursor(0, 11);
+    helpers.doKeys(key);
+    helpers.assertCursorAt(0, 11);
+  });
+}, {value: '__jmp1 jmp2 jmp'});
+testVim('a', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.doKeys('a');
+  helpers.assertCursorAt(0, 2);
+  eq('vim-insert', cm.getOption('keyMap'));
+});
+testVim('a_eol', function(cm, vim, helpers) {
+  cm.setCursor(0, lines[0].length - 1);
+  helpers.doKeys('a');
+  helpers.assertCursorAt(0, lines[0].length);
+  eq('vim-insert', cm.getOption('keyMap'));
+});
+testVim('A_endOfSelectedArea', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('v', 'j', 'l');
+  helpers.doKeys('A');
+  helpers.assertCursorAt(1, 2);
+  eq('vim-insert', cm.getOption('keyMap'));
+}, {value: 'foo\nbar'});
+testVim('i', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.doKeys('i');
+  helpers.assertCursorAt(0, 1);
+  eq('vim-insert', cm.getOption('keyMap'));
+});
+testVim('i_repeat', function(cm, vim, helpers) {
+  helpers.doKeys('3', 'i');
+  cm.replaceRange('test', cm.getCursor());
+  helpers.doKeys('');
+  eq('testtesttest', cm.getValue());
+  helpers.assertCursorAt(0, 11);
+}, { value: '' });
+testVim('i_repeat_delete', function(cm, vim, helpers) {
+  cm.setCursor(0, 4);
+  helpers.doKeys('2', 'i');
+  cm.replaceRange('z', cm.getCursor());
+  helpers.doInsertModeKeys('Backspace', 'Backspace');
+  helpers.doKeys('');
+  eq('abe', cm.getValue());
+  helpers.assertCursorAt(0, 1);
+}, { value: 'abcde' });
+testVim('insert', function(cm, vim, helpers) {
+  helpers.doKeys('i');
+  eq('vim-insert', cm.getOption('keyMap'));
+  eq(false, cm.state.overwrite);
+  helpers.doKeys('');
+  eq('vim-replace', cm.getOption('keyMap'));
+  eq(true, cm.state.overwrite);
+  helpers.doKeys('');
+  eq('vim-insert', cm.getOption('keyMap'));
+  eq(false, cm.state.overwrite);
+});
+testVim('i_backspace', function(cm, vim, helpers) {
+  cm.setCursor(0, 10);
+  helpers.doKeys('i');
+  helpers.doInsertModeKeys('Backspace');
+  helpers.assertCursorAt(0, 9);
+  eq('012345678', cm.getValue());
+}, { value: '0123456789'});
+testVim('i_overwrite_backspace', function(cm, vim, helpers) {
+  cm.setCursor(0, 10);
+  helpers.doKeys('i');
+  helpers.doKeys('');
+  helpers.doInsertModeKeys('Backspace');
+  helpers.assertCursorAt(Pos(0, 9, "after"));
+  eq('0123456789', cm.getValue());
+}, { value: '0123456789'});
+testVim('A', function(cm, vim, helpers) {
+  helpers.doKeys('A');
+  helpers.assertCursorAt(0, lines[0].length);
+  eq('vim-insert', cm.getOption('keyMap'));
+});
+testVim('A_visual_block', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.doKeys('', '2', 'j', 'l', 'l', 'A');
+  var replacement = new Array(cm.listSelections().length+1).join('hello ').split(' ');
+  replacement.pop();
+  cm.replaceSelections(replacement);
+  eq('testhello\nmehello\npleahellose', cm.getValue());
+  helpers.doKeys('');
+  cm.setCursor(0, 0);
+  helpers.doKeys('.');
+  // TODO this doesn't work yet
+  // eq('teshellothello\nme hello hello\nplehelloahellose', cm.getValue());
+}, {value: 'test\nme\nplease'});
+testVim('I', function(cm, vim, helpers) {
+  cm.setCursor(0, 4);
+  helpers.doKeys('I');
+  helpers.assertCursorAt(0, lines[0].textStart);
+  eq('vim-insert', cm.getOption('keyMap'));
+});
+testVim('I_repeat', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.doKeys('3', 'I');
+  cm.replaceRange('test', cm.getCursor());
+  helpers.doKeys('');
+  eq('testtesttestblah', cm.getValue());
+  helpers.assertCursorAt(0, 11);
+}, { value: 'blah' });
+testVim('I_visual_block', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('', '2', 'j', 'l', 'l', 'I');
+  var replacement = new Array(cm.listSelections().length+1).join('hello ').split(' ');
+  replacement.pop();
+  cm.replaceSelections(replacement);
+  eq('hellotest\nhellome\nhelloplease', cm.getValue());
+}, {value: 'test\nme\nplease'});
+testVim('o', function(cm, vim, helpers) {
+  cm.setCursor(0, 4);
+  helpers.doKeys('o');
+  eq('word1\n\nword2', cm.getValue());
+  helpers.assertCursorAt(1, 0);
+  eq('vim-insert', cm.getOption('keyMap'));
+}, { value: 'word1\nword2' });
+testVim('o_repeat', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('3', 'o');
+  cm.replaceRange('test', cm.getCursor());
+  helpers.doKeys('');
+  eq('\ntest\ntest\ntest', cm.getValue());
+  helpers.assertCursorAt(3, 3);
+}, { value: '' });
+testVim('O', function(cm, vim, helpers) {
+  cm.setCursor(0, 4);
+  helpers.doKeys('O');
+  eq('\nword1\nword2', cm.getValue());
+  helpers.assertCursorAt(0, 0);
+  eq('vim-insert', cm.getOption('keyMap'));
+}, { value: 'word1\nword2' });
+testVim('J', function(cm, vim, helpers) {
+  cm.setCursor(0, 4);
+  helpers.doKeys('J');
+  var expectedValue = 'word1  word2\nword3\n word4';
+  eq(expectedValue, cm.getValue());
+  helpers.assertCursorAt(0, expectedValue.indexOf('word2') - 1);
+}, { value: 'word1 \n    word2\nword3\n word4' });
+testVim('J_repeat', function(cm, vim, helpers) {
+  cm.setCursor(0, 4);
+  helpers.doKeys('3', 'J');
+  var expectedValue = 'word1  word2 word3\n word4';
+  eq(expectedValue, cm.getValue());
+  helpers.assertCursorAt(0, expectedValue.indexOf('word3') - 1);
+}, { value: 'word1 \n    word2\nword3\n word4' });
+testVim('p', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.getRegisterController().pushText('"', 'yank', 'abc\ndef', false);
+  helpers.doKeys('p');
+  eq('__abc\ndef_', cm.getValue());
+  helpers.assertCursorAt(1, 2);
+}, { value: '___' });
+testVim('p_register', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.getRegisterController().getRegister('a').setText('abc\ndef', false);
+  helpers.doKeys('"', 'a', 'p');
+  eq('__abc\ndef_', cm.getValue());
+  helpers.assertCursorAt(1, 2);
+}, { value: '___' });
+testVim('p_wrong_register', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.getRegisterController().getRegister('a').setText('abc\ndef', false);
+  helpers.doKeys('p');
+  eq('___', cm.getValue());
+  helpers.assertCursorAt(0, 1);
+}, { value: '___' });
+testVim('p_line', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.getRegisterController().pushText('"', 'yank', '  a\nd\n', true);
+  helpers.doKeys('2', 'p');
+  eq('___\n  a\nd\n  a\nd', cm.getValue());
+  helpers.assertCursorAt(1, 2);
+}, { value: '___' });
+testVim('p_lastline', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.getRegisterController().pushText('"', 'yank', '  a\nd', true);
+  helpers.doKeys('2', 'p');
+  eq('___\n  a\nd\n  a\nd', cm.getValue());
+  helpers.assertCursorAt(1, 2);
+}, { value: '___' });
+testVim(']p_first_indent_is_smaller', function(cm, vim, helpers) {
+  helpers.getRegisterController().pushText('"', 'yank', '  abc\n    def\n', true);
+  helpers.doKeys(']', 'p');
+  eq('  ___\n  abc\n    def', cm.getValue());
+}, { value: '  ___' });
+testVim(']p_first_indent_is_larger', function(cm, vim, helpers) {
+  helpers.getRegisterController().pushText('"', 'yank', '    abc\n  def\n', true);
+  helpers.doKeys(']', 'p');
+  eq('  ___\n  abc\ndef', cm.getValue());
+}, { value: '  ___' });
+testVim(']p_with_tab_indents', function(cm, vim, helpers) {
+  helpers.getRegisterController().pushText('"', 'yank', '\t\tabc\n\t\t\tdef\n', true);
+  helpers.doKeys(']', 'p');
+  eq('\t___\n\tabc\n\t\tdef', cm.getValue());
+}, { value: '\t___', indentWithTabs: true});
+testVim(']p_with_spaces_translated_to_tabs', function(cm, vim, helpers) {
+  helpers.getRegisterController().pushText('"', 'yank', '  abc\n    def\n', true);
+  helpers.doKeys(']', 'p');
+  eq('\t___\n\tabc\n\t\tdef', cm.getValue());
+}, { value: '\t___', indentWithTabs: true, tabSize: 2 });
+testVim('[p', function(cm, vim, helpers) {
+  helpers.getRegisterController().pushText('"', 'yank', '  abc\n    def\n', true);
+  helpers.doKeys('[', 'p');
+  eq('  abc\n    def\n  ___', cm.getValue());
+}, { value: '  ___' });
+testVim('P', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.getRegisterController().pushText('"', 'yank', 'abc\ndef', false);
+  helpers.doKeys('P');
+  eq('_abc\ndef__', cm.getValue());
+  helpers.assertCursorAt(1, 3);
+}, { value: '___' });
+testVim('P_line', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.getRegisterController().pushText('"', 'yank', '  a\nd\n', true);
+  helpers.doKeys('2', 'P');
+  eq('  a\nd\n  a\nd\n___', cm.getValue());
+  helpers.assertCursorAt(0, 2);
+}, { value: '___' });
+testVim('r', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.doKeys('3', 'r', 'u');
+  eq('wuuuet\nanother', cm.getValue(),'3r failed');
+  helpers.assertCursorAt(0, 3);
+  cm.setCursor(0, 4);
+  helpers.doKeys('v', 'j', 'h', 'r', '');
+  eq('wuuu  \n    her', cm.getValue(),'Replacing selection by space-characters failed');
+}, { value: 'wordet\nanother' });
+testVim('r_visual_block', function(cm, vim, helpers) {
+  cm.setCursor(2, 3);
+  helpers.doKeys('', 'k', 'k', 'h', 'h', 'r', 'l');
+  eq('1lll\n5lll\nalllefg', cm.getValue());
+  helpers.doKeys('', 'l', 'j', 'r', '');
+  eq('1  l\n5  l\nalllefg', cm.getValue());
+  cm.setCursor(2, 0);
+  helpers.doKeys('o');
+  helpers.doKeys('');
+  cm.replaceRange('\t\t', cm.getCursor());
+  helpers.doKeys('', 'h', 'h', 'r', 'r');
+  eq('1  l\n5  l\nalllefg\nrrrrrrrr', cm.getValue());
+}, {value: '1234\n5678\nabcdefg'});
+testVim('R', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.doKeys('R');
+  helpers.assertCursorAt(0, 1);
+  eq('vim-replace', cm.getOption('keyMap'));
+  is(cm.state.overwrite, 'Setting overwrite state failed');
+});
+testVim('mark', function(cm, vim, helpers) {
+  cm.setCursor(2, 2);
+  helpers.doKeys('m', 't');
+  cm.setCursor(0, 0);
+  helpers.doKeys('`', 't');
+  helpers.assertCursorAt(2, 2);
+  cm.setCursor(2, 0);
+  cm.replaceRange('   h', cm.getCursor());
+  cm.setCursor(0, 0);
+  helpers.doKeys('\'', 't');
+  helpers.assertCursorAt(2, 3);
+});
+testVim('mark\'', function(cm, vim, helpers) {
+  cm.setCursor(2, 2);
+  cm.setCursor(0, 0);
+  helpers.doKeys('`', '\'');
+  helpers.assertCursorAt(2, 2);
+  cm.setCursor(2, 0);
+  cm.replaceRange('   h', cm.getCursor());
+  cm.setCursor(0, 0);
+  helpers.doKeys('\'', '\'');
+  helpers.assertCursorAt(2, 3);
+});
+testVim('jumpToMark_next', function(cm, vim, helpers) {
+  cm.setCursor(2, 2);
+  helpers.doKeys('m', 't');
+  cm.setCursor(0, 0);
+  helpers.doKeys(']', '`');
+  helpers.assertCursorAt(2, 2);
+  cm.setCursor(0, 0);
+  helpers.doKeys(']', '\'');
+  helpers.assertCursorAt(2, 0);
+});
+testVim('jumpToMark_next_repeat', function(cm, vim, helpers) {
+  cm.setCursor(2, 2);
+  helpers.doKeys('m', 'a');
+  cm.setCursor(3, 2);
+  helpers.doKeys('m', 'b');
+  cm.setCursor(4, 2);
+  helpers.doKeys('m', 'c');
+  cm.setCursor(0, 0);
+  helpers.doKeys('2', ']', '`');
+  helpers.assertCursorAt(3, 2);
+  cm.setCursor(0, 0);
+  helpers.doKeys('2', ']', '\'');
+  helpers.assertCursorAt(3, 1);
+});
+testVim('jumpToMark_next_sameline', function(cm, vim, helpers) {
+  cm.setCursor(2, 0);
+  helpers.doKeys('m', 'a');
+  cm.setCursor(2, 4);
+  helpers.doKeys('m', 'b');
+  cm.setCursor(2, 2);
+  helpers.doKeys(']', '`');
+  helpers.assertCursorAt(2, 4);
+});
+testVim('jumpToMark_next_onlyprev', function(cm, vim, helpers) {
+  cm.setCursor(2, 0);
+  helpers.doKeys('m', 'a');
+  cm.setCursor(4, 0);
+  helpers.doKeys(']', '`');
+  helpers.assertCursorAt(4, 0);
+});
+testVim('jumpToMark_next_nomark', function(cm, vim, helpers) {
+  cm.setCursor(2, 2);
+  helpers.doKeys(']', '`');
+  helpers.assertCursorAt(2, 2);
+  helpers.doKeys(']', '\'');
+  helpers.assertCursorAt(2, 0);
+});
+testVim('jumpToMark_next_linewise_over', function(cm, vim, helpers) {
+  cm.setCursor(2, 2);
+  helpers.doKeys('m', 'a');
+  cm.setCursor(3, 4);
+  helpers.doKeys('m', 'b');
+  cm.setCursor(2, 1);
+  helpers.doKeys(']', '\'');
+  helpers.assertCursorAt(3, 1);
+});
+testVim('jumpToMark_next_action', function(cm, vim, helpers) {
+  cm.setCursor(2, 2);
+  helpers.doKeys('m', 't');
+  cm.setCursor(0, 0);
+  helpers.doKeys('d', ']', '`');
+  helpers.assertCursorAt(0, 0);
+  var actual = cm.getLine(0);
+  var expected = 'pop pop 0 1 2 3 4';
+  eq(actual, expected, "Deleting while jumping to the next mark failed.");
+});
+testVim('jumpToMark_next_line_action', function(cm, vim, helpers) {
+  cm.setCursor(2, 2);
+  helpers.doKeys('m', 't');
+  cm.setCursor(0, 0);
+  helpers.doKeys('d', ']', '\'');
+  helpers.assertCursorAt(0, 1);
+  var actual = cm.getLine(0);
+  var expected = ' (a) [b] {c} '
+  eq(actual, expected, "Deleting while jumping to the next mark line failed.");
+});
+testVim('jumpToMark_prev', function(cm, vim, helpers) {
+  cm.setCursor(2, 2);
+  helpers.doKeys('m', 't');
+  cm.setCursor(4, 0);
+  helpers.doKeys('[', '`');
+  helpers.assertCursorAt(2, 2);
+  cm.setCursor(4, 0);
+  helpers.doKeys('[', '\'');
+  helpers.assertCursorAt(2, 0);
+});
+testVim('jumpToMark_prev_repeat', function(cm, vim, helpers) {
+  cm.setCursor(2, 2);
+  helpers.doKeys('m', 'a');
+  cm.setCursor(3, 2);
+  helpers.doKeys('m', 'b');
+  cm.setCursor(4, 2);
+  helpers.doKeys('m', 'c');
+  cm.setCursor(5, 0);
+  helpers.doKeys('2', '[', '`');
+  helpers.assertCursorAt(3, 2);
+  cm.setCursor(5, 0);
+  helpers.doKeys('2', '[', '\'');
+  helpers.assertCursorAt(3, 1);
+});
+testVim('jumpToMark_prev_sameline', function(cm, vim, helpers) {
+  cm.setCursor(2, 0);
+  helpers.doKeys('m', 'a');
+  cm.setCursor(2, 4);
+  helpers.doKeys('m', 'b');
+  cm.setCursor(2, 2);
+  helpers.doKeys('[', '`');
+  helpers.assertCursorAt(2, 0);
+});
+testVim('jumpToMark_prev_onlynext', function(cm, vim, helpers) {
+  cm.setCursor(4, 4);
+  helpers.doKeys('m', 'a');
+  cm.setCursor(2, 0);
+  helpers.doKeys('[', '`');
+  helpers.assertCursorAt(2, 0);
+});
+testVim('jumpToMark_prev_nomark', function(cm, vim, helpers) {
+  cm.setCursor(2, 2);
+  helpers.doKeys('[', '`');
+  helpers.assertCursorAt(2, 2);
+  helpers.doKeys('[', '\'');
+  helpers.assertCursorAt(2, 0);
+});
+testVim('jumpToMark_prev_linewise_over', function(cm, vim, helpers) {
+  cm.setCursor(2, 2);
+  helpers.doKeys('m', 'a');
+  cm.setCursor(3, 4);
+  helpers.doKeys('m', 'b');
+  cm.setCursor(3, 6);
+  helpers.doKeys('[', '\'');
+  helpers.assertCursorAt(2, 0);
+});
+testVim('delmark_single', function(cm, vim, helpers) {
+  cm.setCursor(1, 2);
+  helpers.doKeys('m', 't');
+  helpers.doEx('delmarks t');
+  cm.setCursor(0, 0);
+  helpers.doKeys('`', 't');
+  helpers.assertCursorAt(0, 0);
+});
+testVim('delmark_range', function(cm, vim, helpers) {
+  cm.setCursor(1, 2);
+  helpers.doKeys('m', 'a');
+  cm.setCursor(2, 2);
+  helpers.doKeys('m', 'b');
+  cm.setCursor(3, 2);
+  helpers.doKeys('m', 'c');
+  cm.setCursor(4, 2);
+  helpers.doKeys('m', 'd');
+  cm.setCursor(5, 2);
+  helpers.doKeys('m', 'e');
+  helpers.doEx('delmarks b-d');
+  cm.setCursor(0, 0);
+  helpers.doKeys('`', 'a');
+  helpers.assertCursorAt(1, 2);
+  helpers.doKeys('`', 'b');
+  helpers.assertCursorAt(1, 2);
+  helpers.doKeys('`', 'c');
+  helpers.assertCursorAt(1, 2);
+  helpers.doKeys('`', 'd');
+  helpers.assertCursorAt(1, 2);
+  helpers.doKeys('`', 'e');
+  helpers.assertCursorAt(5, 2);
+});
+testVim('delmark_multi', function(cm, vim, helpers) {
+  cm.setCursor(1, 2);
+  helpers.doKeys('m', 'a');
+  cm.setCursor(2, 2);
+  helpers.doKeys('m', 'b');
+  cm.setCursor(3, 2);
+  helpers.doKeys('m', 'c');
+  cm.setCursor(4, 2);
+  helpers.doKeys('m', 'd');
+  cm.setCursor(5, 2);
+  helpers.doKeys('m', 'e');
+  helpers.doEx('delmarks bcd');
+  cm.setCursor(0, 0);
+  helpers.doKeys('`', 'a');
+  helpers.assertCursorAt(1, 2);
+  helpers.doKeys('`', 'b');
+  helpers.assertCursorAt(1, 2);
+  helpers.doKeys('`', 'c');
+  helpers.assertCursorAt(1, 2);
+  helpers.doKeys('`', 'd');
+  helpers.assertCursorAt(1, 2);
+  helpers.doKeys('`', 'e');
+  helpers.assertCursorAt(5, 2);
+});
+testVim('delmark_multi_space', function(cm, vim, helpers) {
+  cm.setCursor(1, 2);
+  helpers.doKeys('m', 'a');
+  cm.setCursor(2, 2);
+  helpers.doKeys('m', 'b');
+  cm.setCursor(3, 2);
+  helpers.doKeys('m', 'c');
+  cm.setCursor(4, 2);
+  helpers.doKeys('m', 'd');
+  cm.setCursor(5, 2);
+  helpers.doKeys('m', 'e');
+  helpers.doEx('delmarks b c d');
+  cm.setCursor(0, 0);
+  helpers.doKeys('`', 'a');
+  helpers.assertCursorAt(1, 2);
+  helpers.doKeys('`', 'b');
+  helpers.assertCursorAt(1, 2);
+  helpers.doKeys('`', 'c');
+  helpers.assertCursorAt(1, 2);
+  helpers.doKeys('`', 'd');
+  helpers.assertCursorAt(1, 2);
+  helpers.doKeys('`', 'e');
+  helpers.assertCursorAt(5, 2);
+});
+testVim('delmark_all', function(cm, vim, helpers) {
+  cm.setCursor(1, 2);
+  helpers.doKeys('m', 'a');
+  cm.setCursor(2, 2);
+  helpers.doKeys('m', 'b');
+  cm.setCursor(3, 2);
+  helpers.doKeys('m', 'c');
+  cm.setCursor(4, 2);
+  helpers.doKeys('m', 'd');
+  cm.setCursor(5, 2);
+  helpers.doKeys('m', 'e');
+  helpers.doEx('delmarks a b-de');
+  cm.setCursor(0, 0);
+  helpers.doKeys('`', 'a');
+  helpers.assertCursorAt(0, 0);
+  helpers.doKeys('`', 'b');
+  helpers.assertCursorAt(0, 0);
+  helpers.doKeys('`', 'c');
+  helpers.assertCursorAt(0, 0);
+  helpers.doKeys('`', 'd');
+  helpers.assertCursorAt(0, 0);
+  helpers.doKeys('`', 'e');
+  helpers.assertCursorAt(0, 0);
+});
+testVim('visual', function(cm, vim, helpers) {
+  helpers.doKeys('l', 'v', 'l', 'l');
+  helpers.assertCursorAt(0, 4);
+  eqCursorPos(makeCursor(0, 1), cm.getCursor('anchor'));
+  helpers.doKeys('d');
+  eq('15', cm.getValue());
+}, { value: '12345' });
+testVim('visual_yank', function(cm, vim, helpers) {
+  helpers.doKeys('v', '3', 'l', 'y');
+  helpers.assertCursorAt(0, 0);
+  helpers.doKeys('p');
+  eq('aa te test for yank', cm.getValue());
+}, { value: 'a test for yank' })
+testVim('visual_w', function(cm, vim, helpers) {
+  helpers.doKeys('v', 'w');
+  eq(cm.getSelection(), 'motion t');
+}, { value: 'motion test'});
+testVim('visual_initial_selection', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.doKeys('v');
+  cm.getSelection('n');
+}, { value: 'init'});
+testVim('visual_crossover_left', function(cm, vim, helpers) {
+  cm.setCursor(0, 2);
+  helpers.doKeys('v', 'l', 'h', 'h');
+  cm.getSelection('ro');
+}, { value: 'cross'});
+testVim('visual_crossover_left', function(cm, vim, helpers) {
+  cm.setCursor(0, 2);
+  helpers.doKeys('v', 'h', 'l', 'l');
+  cm.getSelection('os');
+}, { value: 'cross'});
+testVim('visual_crossover_up', function(cm, vim, helpers) {
+  cm.setCursor(3, 2);
+  helpers.doKeys('v', 'j', 'k', 'k');
+  eqCursorPos(Pos(2, 2), cm.getCursor('head'));
+  eqCursorPos(Pos(3, 3), cm.getCursor('anchor'));
+  helpers.doKeys('k');
+  eqCursorPos(Pos(1, 2), cm.getCursor('head'));
+  eqCursorPos(Pos(3, 3), cm.getCursor('anchor'));
+}, { value: 'cross\ncross\ncross\ncross\ncross\n'});
+testVim('visual_crossover_down', function(cm, vim, helpers) {
+  cm.setCursor(1, 2);
+  helpers.doKeys('v', 'k', 'j', 'j');
+  eqCursorPos(Pos(2, 3), cm.getCursor('head'));
+  eqCursorPos(Pos(1, 2), cm.getCursor('anchor'));
+  helpers.doKeys('j');
+  eqCursorPos(Pos(3, 3), cm.getCursor('head'));
+  eqCursorPos(Pos(1, 2), cm.getCursor('anchor'));
+}, { value: 'cross\ncross\ncross\ncross\ncross\n'});
+testVim('visual_exit', function(cm, vim, helpers) {
+  helpers.doKeys('', 'l', 'j', 'j', '');
+  eqCursorPos(cm.getCursor('anchor'), cm.getCursor('head'));
+  eq(vim.visualMode, false);
+}, { value: 'hello\nworld\nfoo' });
+testVim('visual_line', function(cm, vim, helpers) {
+  helpers.doKeys('l', 'V', 'l', 'j', 'j', 'd');
+  eq(' 4\n 5', cm.getValue());
+}, { value: ' 1\n 2\n 3\n 4\n 5' });
+testVim('visual_block_move_to_eol', function(cm, vim, helpers) {
+  // moveToEol should move all block cursors to end of line
+  cm.setCursor(0, 0);
+  helpers.doKeys('', 'G', '$');
+  var selections = cm.getSelections().join();
+  eq('123,45,6', selections);
+  // Checks that with cursor at Infinity, finding words backwards still works.
+  helpers.doKeys('2', 'k', 'b');
+  selections = cm.getSelections().join();
+  eq('1', selections);
+}, {value: '123\n45\n6'});
+testVim('visual_block_different_line_lengths', function(cm, vim, helpers) {
+  // test the block selection with lines of different length
+  // i.e. extending the selection
+  // till the end of the longest line.
+  helpers.doKeys('', 'l', 'j', 'j', '6', 'l', 'd');
+  helpers.doKeys('d', 'd', 'd', 'd');
+  eq('', cm.getValue());
+}, {value: '1234\n5678\nabcdefg'});
+testVim('visual_block_truncate_on_short_line', function(cm, vim, helpers) {
+  // check for left side selection in case
+  // of moving up to a shorter line.
+  cm.replaceRange('', cm.getCursor());
+  cm.setCursor(3, 4);
+  helpers.doKeys('', 'l', 'k', 'k', 'd');
+  eq('hello world\n{\ntis\nsa!', cm.getValue());
+}, {value: 'hello world\n{\nthis is\nsparta!'});
+testVim('visual_block_corners', function(cm, vim, helpers) {
+  cm.setCursor(1, 2);
+  helpers.doKeys('', '2', 'l', 'k');
+  // circle around the anchor
+  // and check the selections
+  var selections = cm.getSelections();
+  eq('345891', selections.join(''));
+  helpers.doKeys('4', 'h');
+  selections = cm.getSelections();
+  eq('123678', selections.join(''));
+  helpers.doKeys('j', 'j');
+  selections = cm.getSelections();
+  eq('678abc', selections.join(''));
+  helpers.doKeys('4', 'l');
+  selections = cm.getSelections();
+  eq('891cde', selections.join(''));
+}, {value: '12345\n67891\nabcde'});
+testVim('visual_block_mode_switch', function(cm, vim, helpers) {
+  // switch between visual modes
+  cm.setCursor(1, 1);
+  // blockwise to characterwise visual
+  helpers.doKeys('', 'j', 'l', 'v');
+  var selections = cm.getSelections();
+  eq('7891\nabc', selections.join(''));
+  // characterwise to blockwise
+  helpers.doKeys('');
+  selections = cm.getSelections();
+  eq('78bc', selections.join(''));
+  // blockwise to linewise visual
+  helpers.doKeys('V');
+  selections = cm.getSelections();
+  eq('67891\nabcde', selections.join(''));
+}, {value: '12345\n67891\nabcde'});
+testVim('visual_block_crossing_short_line', function(cm, vim, helpers) {
+  // visual block with long and short lines
+  cm.setCursor(0, 3);
+  helpers.doKeys('', 'j', 'j', 'j');
+  var selections = cm.getSelections().join();
+  eq('4,,d,b', selections);
+  helpers.doKeys('3', 'k');
+  selections = cm.getSelections().join();
+  eq('4', selections);
+  helpers.doKeys('5', 'j', 'k');
+  selections = cm.getSelections().join("");
+  eq(10, selections.length);
+}, {value: '123456\n78\nabcdefg\nfoobar\n}\n'});
+testVim('visual_block_curPos_on_exit', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('', '3' , 'l', '');
+  eqCursorPos(makeCursor(0, 3), cm.getCursor());
+  helpers.doKeys('h', '', '2' , 'j' ,'3' , 'l');
+  eq(cm.getSelections().join(), "3456,,cdef");
+  helpers.doKeys('4' , 'h');
+  eq(cm.getSelections().join(), "23,8,bc");
+  helpers.doKeys('2' , 'l');
+  eq(cm.getSelections().join(), "34,,cd");
+}, {value: '123456\n78\nabcdefg\nfoobar'});
+
+testVim('visual_marks', function(cm, vim, helpers) {
+  helpers.doKeys('l', 'v', 'l', 'l', 'j', 'j', 'v');
+  // Test visual mode marks
+  cm.setCursor(2, 1);
+  helpers.doKeys('\'', '<');
+  helpers.assertCursorAt(0, 1);
+  helpers.doKeys('\'', '>');
+  helpers.assertCursorAt(2, 0);
+});
+testVim('visual_join', function(cm, vim, helpers) {
+  helpers.doKeys('l', 'V', 'l', 'j', 'j', 'J');
+  eq(' 1 2 3\n 4\n 5', cm.getValue());
+  is(!vim.visualMode);
+}, { value: ' 1\n 2\n 3\n 4\n 5' });
+testVim('visual_join_2', function(cm, vim, helpers) {
+  helpers.doKeys('G', 'V', 'g', 'g', 'J');
+  eq('1 2 3 4 5 6 ', cm.getValue());
+  is(!vim.visualMode);
+}, { value: '1\n2\n3\n4\n5\n6\n'});
+testVim('visual_blank', function(cm, vim, helpers) {
+  helpers.doKeys('v', 'k');
+  eq(vim.visualMode, true);
+}, { value: '\n' });
+testVim('reselect_visual', function(cm, vim, helpers) {
+  helpers.doKeys('l', 'v', 'l', 'l', 'l', 'y', 'g', 'v');
+  helpers.assertCursorAt(0, 5);
+  eqCursorPos(makeCursor(0, 1), cm.getCursor('anchor'));
+  helpers.doKeys('v');
+  cm.setCursor(1, 0);
+  helpers.doKeys('v', 'l', 'l', 'p');
+  eq('123456\n2345\nbar', cm.getValue());
+  cm.setCursor(0, 0);
+  helpers.doKeys('g', 'v');
+  // here the fake cursor is at (1, 3)
+  helpers.assertCursorAt(1, 4);
+  eqCursorPos(makeCursor(1, 0), cm.getCursor('anchor'));
+  helpers.doKeys('v');
+  cm.setCursor(2, 0);
+  helpers.doKeys('v', 'l', 'l', 'g', 'v');
+  helpers.assertCursorAt(1, 4);
+  eqCursorPos(makeCursor(1, 0), cm.getCursor('anchor'));
+  helpers.doKeys('g', 'v');
+  helpers.assertCursorAt(2, 3);
+  eqCursorPos(makeCursor(2, 0), cm.getCursor('anchor'));
+  eq('123456\n2345\nbar', cm.getValue());
+}, { value: '123456\nfoo\nbar' });
+testVim('reselect_visual_line', function(cm, vim, helpers) {
+  helpers.doKeys('l', 'V', 'j', 'j', 'V', 'g', 'v', 'd');
+  eq('foo\nand\nbar', cm.getValue());
+  cm.setCursor(1, 0);
+  helpers.doKeys('V', 'y', 'j');
+  helpers.doKeys('V', 'p' , 'g', 'v', 'd');
+  eq('foo\nand', cm.getValue());
+}, { value: 'hello\nthis\nis\nfoo\nand\nbar' });
+testVim('reselect_visual_block', function(cm, vim, helpers) {
+  cm.setCursor(1, 2);
+  helpers.doKeys('', 'k', 'h', '');
+  cm.setCursor(2, 1);
+  helpers.doKeys('v', 'l', 'g', 'v');
+  eqCursorPos(Pos(1, 2), vim.sel.anchor);
+  eqCursorPos(Pos(0, 1), vim.sel.head);
+  // Ensure selection is done with visual block mode rather than one
+  // continuous range.
+  eq(cm.getSelections().join(''), '23oo')
+  helpers.doKeys('g', 'v');
+  eqCursorPos(Pos(2, 1), vim.sel.anchor);
+  eqCursorPos(Pos(2, 2), vim.sel.head);
+  helpers.doKeys('');
+  // Ensure selection of deleted range
+  cm.setCursor(1, 1);
+  helpers.doKeys('v', '', 'j', 'd', 'g', 'v');
+  eq(cm.getSelections().join(''), 'or');
+}, { value: '123456\nfoo\nbar' });
+testVim('s_normal', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.doKeys('s');
+  helpers.doKeys('');
+  eq('ac', cm.getValue());
+}, { value: 'abc'});
+testVim('s_visual', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.doKeys('v', 's');
+  helpers.doKeys('');
+  helpers.assertCursorAt(0, 0);
+  eq('ac', cm.getValue());
+}, { value: 'abc'});
+testVim('o_visual', function(cm, vim, helpers) {
+  cm.setCursor(0,0);
+  helpers.doKeys('v','l','l','l','o');
+  helpers.assertCursorAt(0,0);
+  helpers.doKeys('v','v','j','j','j','o');
+  helpers.assertCursorAt(0,0);
+  helpers.doKeys('O');
+  helpers.doKeys('l','l')
+  helpers.assertCursorAt(3, 3);
+  helpers.doKeys('d');
+  eq('p',cm.getValue());
+}, { value: 'abcd\nefgh\nijkl\nmnop'});
+testVim('o_visual_block', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.doKeys('','3','j','l','l', 'o');
+  eqCursorPos(Pos(3, 3), vim.sel.anchor);
+  eqCursorPos(Pos(0, 1), vim.sel.head);
+  helpers.doKeys('O');
+  eqCursorPos(Pos(3, 1), vim.sel.anchor);
+  eqCursorPos(Pos(0, 3), vim.sel.head);
+  helpers.doKeys('o');
+  eqCursorPos(Pos(0, 3), vim.sel.anchor);
+  eqCursorPos(Pos(3, 1), vim.sel.head);
+}, { value: 'abcd\nefgh\nijkl\nmnop'});
+testVim('changeCase_visual', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('v', 'l', 'l');
+  helpers.doKeys('U');
+  helpers.assertCursorAt(0, 0);
+  helpers.doKeys('v', 'l', 'l');
+  helpers.doKeys('u');
+  helpers.assertCursorAt(0, 0);
+  helpers.doKeys('l', 'l', 'l', '.');
+  helpers.assertCursorAt(0, 3);
+  cm.setCursor(0, 0);
+  helpers.doKeys('q', 'a', 'v', 'j', 'U', 'q');
+  helpers.assertCursorAt(0, 0);
+  helpers.doKeys('j', '@', 'a');
+  helpers.assertCursorAt(1, 0);
+  cm.setCursor(3, 0);
+  helpers.doKeys('V', 'U', 'j', '.');
+  eq('ABCDEF\nGHIJKL\nMnopq\nSHORT LINE\nLONG LINE OF TEXT', cm.getValue());
+}, { value: 'abcdef\nghijkl\nmnopq\nshort line\nlong line of text'});
+testVim('changeCase_visual_block', function(cm, vim, helpers) {
+  cm.setCursor(2, 1);
+  helpers.doKeys('', 'k', 'k', 'h', 'U');
+  eq('ABcdef\nGHijkl\nMNopq\nfoo', cm.getValue());
+  cm.setCursor(0, 2);
+  helpers.doKeys('.');
+  eq('ABCDef\nGHIJkl\nMNOPq\nfoo', cm.getValue());
+  // check when last line is shorter.
+  cm.setCursor(2, 2);
+  helpers.doKeys('.');
+  eq('ABCDef\nGHIJkl\nMNOPq\nfoO', cm.getValue());
+}, { value: 'abcdef\nghijkl\nmnopq\nfoo'});
+testVim('visual_paste', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('v', 'l', 'l', 'y');
+  helpers.assertCursorAt(0, 0);
+  helpers.doKeys('3', 'l', 'j', 'v', 'l', 'p');
+  helpers.assertCursorAt(1, 5);
+  eq('this is a\nunithitest for visual paste', cm.getValue());
+  cm.setCursor(0, 0);
+  // in case of pasting whole line
+  helpers.doKeys('y', 'y');
+  cm.setCursor(1, 6);
+  helpers.doKeys('v', 'l', 'l', 'l', 'p');
+  helpers.assertCursorAt(2, 0);
+  eq('this is a\nunithi\nthis is a\n for visual paste', cm.getValue());
+}, { value: 'this is a\nunit test for visual paste'});
+
+// This checks the contents of the register used to paste the text
+testVim('v_paste_from_register', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('"', 'a', 'y', 'w');
+  cm.setCursor(1, 0);
+  helpers.doKeys('v', 'p');
+  cm.openDialog = helpers.fakeOpenDialog('registers');
+  cm.openNotification = helpers.fakeOpenNotification(function(text) {
+    is(/a\s+register/.test(text));
+  });
+}, { value: 'register contents\nare not erased'});
+testVim('S_normal', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.doKeys('j', 'S');
+  helpers.doKeys('');
+  helpers.assertCursorAt(1, 1);
+  eq('aa{\n  \ncc', cm.getValue());
+  helpers.doKeys('j', 'S');
+  eq('aa{\n  \n  ', cm.getValue());
+  helpers.assertCursorAt(2, 2);
+  helpers.doKeys('');
+  helpers.doKeys('d', 'd', 'd', 'd');
+  helpers.assertCursorAt(0, 0);
+  helpers.doKeys('S');
+  is(vim.insertMode);
+  eq('', cm.getValue());
+}, { value: 'aa{\nbb\ncc'});
+testVim('blockwise_paste', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('', '3', 'j', 'l', 'y');
+  cm.setCursor(0, 2);
+  // paste one char after the current cursor position
+  helpers.doKeys('p');
+  eq('helhelo\nworwold\nfoofo\nbarba', cm.getValue());
+  cm.setCursor(0, 0);
+  helpers.doKeys('v', '4', 'l', 'y');
+  cm.setCursor(0, 0);
+  helpers.doKeys('', '3', 'j', 'p');
+  eq('helheelhelo\norwold\noofo\narba', cm.getValue());
+}, { value: 'hello\nworld\nfoo\nbar'});
+testVim('blockwise_paste_long/short_line', function(cm, vim, helpers) {
+  // extend short lines in case of different line lengths.
+  cm.setCursor(0, 0);
+  helpers.doKeys('', 'j', 'j', 'y');
+  cm.setCursor(0, 3);
+  helpers.doKeys('p');
+  eq('hellho\nfoo f\nbar b', cm.getValue());
+}, { value: 'hello\nfoo\nbar'});
+testVim('blockwise_paste_cut_paste', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('', '2', 'j', 'x');
+  cm.setCursor(0, 0);
+  helpers.doKeys('P');
+  eq('cut\nand\npaste\nme', cm.getValue());
+}, { value: 'cut\nand\npaste\nme'});
+testVim('blockwise_paste_from_register', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('', '2', 'j', '"', 'a', 'y');
+  cm.setCursor(0, 3);
+  helpers.doKeys('"', 'a', 'p');
+  eq('foobfar\nhellho\nworlwd', cm.getValue());
+}, { value: 'foobar\nhello\nworld'});
+testVim('blockwise_paste_last_line', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('', '2', 'j', 'l', 'y');
+  cm.setCursor(3, 0);
+  helpers.doKeys('p');
+  eq('cut\nand\npaste\nmcue\n an\n pa', cm.getValue());
+}, { value: 'cut\nand\npaste\nme'});
+
+testVim('S_visual', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.doKeys('v', 'j', 'S');
+  helpers.doKeys('');
+  helpers.assertCursorAt(0, 0);
+  eq('\ncc', cm.getValue());
+}, { value: 'aa\nbb\ncc'});
+
+testVim('d_/', function(cm, vim, helpers) {
+  cm.openDialog = helpers.fakeOpenDialog('match');
+  helpers.doKeys('2', 'd', '/');
+  helpers.assertCursorAt(0, 0);
+  eq('match \n next', cm.getValue());
+  cm.openDialog = helpers.fakeOpenDialog('2');
+  helpers.doKeys('d', ':');
+  // TODO eq(' next', cm.getValue());
+}, { value: 'text match match \n next' });
+testVim('/ and n/N', function(cm, vim, helpers) {
+  cm.openDialog = helpers.fakeOpenDialog('match');
+  helpers.doKeys('/');
+  helpers.assertCursorAt(0, 11);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(1, 6);
+  helpers.doKeys('N');
+  helpers.assertCursorAt(0, 11);
+
+  cm.setCursor(0, 0);
+  helpers.doKeys('2', '/');
+  helpers.assertCursorAt(1, 6);
+}, { value: 'match nope match \n nope Match' });
+testVim('/_case', function(cm, vim, helpers) {
+  cm.openDialog = helpers.fakeOpenDialog('Match');
+  helpers.doKeys('/');
+  helpers.assertCursorAt(1, 6);
+}, { value: 'match nope match \n nope Match' });
+testVim('/_2_pcre', function(cm, vim, helpers) {
+  CodeMirror.Vim.setOption('pcre', true);
+  cm.openDialog = helpers.fakeOpenDialog('(word){2}');
+  helpers.doKeys('/');
+  helpers.assertCursorAt(1, 9);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(2, 1);
+}, { value: 'word\n another wordword\n wordwordword\n' });
+testVim('/_2_nopcre', function(cm, vim, helpers) {
+  CodeMirror.Vim.setOption('pcre', false);
+  cm.openDialog = helpers.fakeOpenDialog('\\(word\\)\\{2}');
+  helpers.doKeys('/');
+  helpers.assertCursorAt(1, 9);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(2, 1);
+}, { value: 'word\n another wordword\n wordwordword\n' });
+testVim('/_nongreedy', function(cm, vim, helpers) {
+  cm.openDialog = helpers.fakeOpenDialog('aa');
+  helpers.doKeys('/');
+  helpers.assertCursorAt(0, 4);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(1, 3);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(0, 0);
+}, { value: 'aaa aa \n a aa'});
+testVim('?_nongreedy', function(cm, vim, helpers) {
+  cm.openDialog = helpers.fakeOpenDialog('aa');
+  helpers.doKeys('?');
+  helpers.assertCursorAt(1, 3);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(0, 4);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(0, 0);
+}, { value: 'aaa aa \n a aa'});
+testVim('/_greedy', function(cm, vim, helpers) {
+  cm.openDialog = helpers.fakeOpenDialog('a+');
+  helpers.doKeys('/');
+  helpers.assertCursorAt(0, 4);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(1, 1);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(1, 3);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(0, 0);
+}, { value: 'aaa aa \n a aa'});
+testVim('?_greedy', function(cm, vim, helpers) {
+  cm.openDialog = helpers.fakeOpenDialog('a+');
+  helpers.doKeys('?');
+  helpers.assertCursorAt(1, 3);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(1, 1);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(0, 4);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(0, 0);
+}, { value: 'aaa aa \n a aa'});
+testVim('/_greedy_0_or_more', function(cm, vim, helpers) {
+  cm.openDialog = helpers.fakeOpenDialog('a*');
+  helpers.doKeys('/');
+  helpers.assertCursorAt(0, 3);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(0, 4);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(0, 5);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(1, 0);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(1, 1);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(0, 0);
+}, { value: 'aaa  aa\n aa'});
+testVim('?_greedy_0_or_more', function(cm, vim, helpers) {
+  cm.openDialog = helpers.fakeOpenDialog('a*');
+  helpers.doKeys('?');
+  helpers.assertCursorAt(1, 1);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(1, 0);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(0, 5);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(0, 4);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(0, 3);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(0, 0);
+}, { value: 'aaa  aa\n aa'});
+testVim('? and n/N', function(cm, vim, helpers) {
+  cm.openDialog = helpers.fakeOpenDialog('match');
+  helpers.doKeys('?');
+  helpers.assertCursorAt(1, 6);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(0, 11);
+  helpers.doKeys('N');
+  helpers.assertCursorAt(1, 6);
+
+  cm.setCursor(0, 0);
+  helpers.doKeys('2', '?');
+  helpers.assertCursorAt(0, 11);
+}, { value: 'match nope match \n nope Match' });
+testVim('*', function(cm, vim, helpers) {
+  cm.setCursor(0, 9);
+  helpers.doKeys('*');
+  helpers.assertCursorAt(0, 22);
+
+  cm.setCursor(0, 9);
+  helpers.doKeys('2', '*');
+  helpers.assertCursorAt(1, 8);
+}, { value: 'nomatch match nomatch match \nnomatch Match' });
+testVim('*_no_word', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('*');
+  helpers.assertCursorAt(0, 0);
+}, { value: ' \n match \n' });
+testVim('*_symbol', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('*');
+  helpers.assertCursorAt(1, 0);
+}, { value: ' /}\n/} match \n' });
+testVim('#', function(cm, vim, helpers) {
+  cm.setCursor(0, 9);
+  helpers.doKeys('#');
+  helpers.assertCursorAt(1, 8);
+
+  cm.setCursor(0, 9);
+  helpers.doKeys('2', '#');
+  helpers.assertCursorAt(0, 22);
+}, { value: 'nomatch match nomatch match \nnomatch Match' });
+testVim('*_seek', function(cm, vim, helpers) {
+  // Should skip over space and symbols.
+  cm.setCursor(0, 3);
+  helpers.doKeys('*');
+  helpers.assertCursorAt(0, 22);
+}, { value: '    :=  match nomatch match \nnomatch Match' });
+testVim('#', function(cm, vim, helpers) {
+  // Should skip over space and symbols.
+  cm.setCursor(0, 3);
+  helpers.doKeys('#');
+  helpers.assertCursorAt(1, 8);
+}, { value: '    :=  match nomatch match \nnomatch Match' });
+testVim('g*', function(cm, vim, helpers) {
+  cm.setCursor(0, 8);
+  helpers.doKeys('g', '*');
+  helpers.assertCursorAt(0, 18);
+  cm.setCursor(0, 8);
+  helpers.doKeys('3', 'g', '*');
+  helpers.assertCursorAt(1, 8);
+}, { value: 'matches match alsoMatch\nmatchme matching' });
+testVim('g#', function(cm, vim, helpers) {
+  cm.setCursor(0, 8);
+  helpers.doKeys('g', '#');
+  helpers.assertCursorAt(0, 0);
+  cm.setCursor(0, 8);
+  helpers.doKeys('3', 'g', '#');
+  helpers.assertCursorAt(1, 0);
+}, { value: 'matches match alsoMatch\nmatchme matching' });
+testVim('macro_insert', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('q', 'a', '0', 'i');
+  cm.replaceRange('foo', cm.getCursor());
+  helpers.doKeys('');
+  helpers.doKeys('q', '@', 'a');
+  eq('foofoo', cm.getValue());
+}, { value: ''});
+testVim('macro_insert_repeat', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('q', 'a', '$', 'a');
+  cm.replaceRange('larry.', cm.getCursor());
+  helpers.doKeys('');
+  helpers.doKeys('a');
+  cm.replaceRange('curly.', cm.getCursor());
+  helpers.doKeys('');
+  helpers.doKeys('q');
+  helpers.doKeys('a');
+  cm.replaceRange('moe.', cm.getCursor());
+  helpers.doKeys('');
+  helpers.doKeys('@', 'a');
+  // At this point, the most recent edit should be the 2nd insert change
+  // inside the macro, i.e. "curly.".
+  helpers.doKeys('.');
+  eq('larry.curly.moe.larry.curly.curly.', cm.getValue());
+}, { value: ''});
+testVim('macro_space', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('', '');
+  helpers.assertCursorAt(0, 2);
+  helpers.doKeys('q', 'a', '', '', 'q');
+  helpers.assertCursorAt(0, 4);
+  helpers.doKeys('@', 'a');
+  helpers.assertCursorAt(0, 6);
+  helpers.doKeys('@', 'a');
+  helpers.assertCursorAt(0, 8);
+}, { value: 'one line of text.'});
+testVim('macro_t_search', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('q', 'a', 't', 'e', 'q');
+  helpers.assertCursorAt(0, 1);
+  helpers.doKeys('l', '@', 'a');
+  helpers.assertCursorAt(0, 6);
+  helpers.doKeys('l', ';');
+  helpers.assertCursorAt(0, 12);
+}, { value: 'one line of text.'});
+testVim('macro_f_search', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('q', 'b', 'f', 'e', 'q');
+  helpers.assertCursorAt(0, 2);
+  helpers.doKeys('@', 'b');
+  helpers.assertCursorAt(0, 7);
+  helpers.doKeys(';');
+  helpers.assertCursorAt(0, 13);
+}, { value: 'one line of text.'});
+testVim('macro_slash_search', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('q', 'c');
+  cm.openDialog = helpers.fakeOpenDialog('e');
+  helpers.doKeys('/', 'q');
+  helpers.assertCursorAt(0, 2);
+  helpers.doKeys('@', 'c');
+  helpers.assertCursorAt(0, 7);
+  helpers.doKeys('n');
+  helpers.assertCursorAt(0, 13);
+}, { value: 'one line of text.'});
+testVim('macro_multislash_search', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('q', 'd');
+  cm.openDialog = helpers.fakeOpenDialog('e');
+  helpers.doKeys('/');
+  cm.openDialog = helpers.fakeOpenDialog('t');
+  helpers.doKeys('/', 'q');
+  helpers.assertCursorAt(0, 12);
+  helpers.doKeys('@', 'd');
+  helpers.assertCursorAt(0, 15);
+}, { value: 'one line of text to rule them all.'});
+testVim('macro_last_ex_command_register', function (cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doEx('s/a/b');
+  helpers.doKeys('2', '@', ':');
+  eq('bbbaa', cm.getValue());
+  helpers.assertCursorAt(0, 2);
+}, { value: 'aaaaa'});
+testVim('macro_parens', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('q', 'z', 'i');
+  cm.replaceRange('(', cm.getCursor());
+  helpers.doKeys('');
+  helpers.doKeys('e', 'a');
+  cm.replaceRange(')', cm.getCursor());
+  helpers.doKeys('');
+  helpers.doKeys('q');
+  helpers.doKeys('w', '@', 'z');
+  helpers.doKeys('w', '@', 'z');
+  eq('(see) (spot) (run)', cm.getValue());
+}, { value: 'see spot run'});
+testVim('macro_overwrite', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('q', 'z', '0', 'i');
+  cm.replaceRange('I ', cm.getCursor());
+  helpers.doKeys('');
+  helpers.doKeys('q');
+  helpers.doKeys('e');
+  // Now replace the macro with something else.
+  helpers.doKeys('q', 'z', 'a');
+  cm.replaceRange('.', cm.getCursor());
+  helpers.doKeys('');
+  helpers.doKeys('q');
+  helpers.doKeys('e', '@', 'z');
+  helpers.doKeys('e', '@', 'z');
+  eq('I see. spot. run.', cm.getValue());
+}, { value: 'see spot run'});
+testVim('macro_search_f', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('q', 'a', 'f', ' ');
+  helpers.assertCursorAt(0,3);
+  helpers.doKeys('q', '0');
+  helpers.assertCursorAt(0,0);
+  helpers.doKeys('@', 'a');
+  helpers.assertCursorAt(0,3);
+}, { value: 'The quick brown fox jumped over the lazy dog.'});
+testVim('macro_search_2f', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('q', 'a', '2', 'f', ' ');
+  helpers.assertCursorAt(0,9);
+  helpers.doKeys('q', '0');
+  helpers.assertCursorAt(0,0);
+  helpers.doKeys('@', 'a');
+  helpers.assertCursorAt(0,9);
+}, { value: 'The quick brown fox jumped over the lazy dog.'});
+testVim('yank_register', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('"', 'a', 'y', 'y');
+  helpers.doKeys('j', '"', 'b', 'y', 'y');
+  cm.openDialog = helpers.fakeOpenDialog('registers');
+  cm.openNotification = helpers.fakeOpenNotification(function(text) {
+    is(/a\s+foo/.test(text));
+    is(/b\s+bar/.test(text));
+  });
+  helpers.doKeys(':');
+}, { value: 'foo\nbar'});
+testVim('yank_visual_block', function(cm, vim, helpers) {
+  cm.setCursor(0, 1);
+  helpers.doKeys('', 'l', 'j', '"', 'a', 'y');
+  cm.openNotification = helpers.fakeOpenNotification(function(text) {
+    is(/a\s+oo\nar/.test(text));
+  });
+  helpers.doKeys(':');
+}, { value: 'foo\nbar'});
+testVim('yank_append_line_to_line_register', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('"', 'a', 'y', 'y');
+  helpers.doKeys('j', '"', 'A', 'y', 'y');
+  cm.openDialog = helpers.fakeOpenDialog('registers');
+  cm.openNotification = helpers.fakeOpenNotification(function(text) {
+    is(/a\s+foo\nbar/.test(text));
+    is(/"\s+foo\nbar/.test(text));
+  });
+  helpers.doKeys(':');
+}, { value: 'foo\nbar'});
+testVim('yank_append_word_to_word_register', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('"', 'a', 'y', 'w');
+  helpers.doKeys('j', '"', 'A', 'y', 'w');
+  cm.openDialog = helpers.fakeOpenDialog('registers');
+  cm.openNotification = helpers.fakeOpenNotification(function(text) {
+    is(/a\s+foobar/.test(text));
+    is(/"\s+foobar/.test(text));
+  });
+  helpers.doKeys(':');
+}, { value: 'foo\nbar'});
+testVim('yank_append_line_to_word_register', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('"', 'a', 'y', 'w');
+  helpers.doKeys('j', '"', 'A', 'y', 'y');
+  cm.openDialog = helpers.fakeOpenDialog('registers');
+  cm.openNotification = helpers.fakeOpenNotification(function(text) {
+    is(/a\s+foo\nbar/.test(text));
+    is(/"\s+foo\nbar/.test(text));
+  });
+  helpers.doKeys(':');
+}, { value: 'foo\nbar'});
+testVim('yank_append_word_to_line_register', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('"', 'a', 'y', 'y');
+  helpers.doKeys('j', '"', 'A', 'y', 'w');
+  cm.openDialog = helpers.fakeOpenDialog('registers');
+  cm.openNotification = helpers.fakeOpenNotification(function(text) {
+    is(/a\s+foo\nbar/.test(text));
+    is(/"\s+foo\nbar/.test(text));
+  });
+  helpers.doKeys(':');
+}, { value: 'foo\nbar'});
+testVim('macro_register', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('q', 'a', 'i');
+  cm.replaceRange('gangnam', cm.getCursor());
+  helpers.doKeys('');
+  helpers.doKeys('q');
+  helpers.doKeys('q', 'b', 'o');
+  cm.replaceRange('style', cm.getCursor());
+  helpers.doKeys('');
+  helpers.doKeys('q');
+  cm.openDialog = helpers.fakeOpenDialog('registers');
+  cm.openNotification = helpers.fakeOpenNotification(function(text) {
+    is(/a\s+i/.test(text));
+    is(/b\s+o/.test(text));
+  });
+  helpers.doKeys(':');
+}, { value: ''});
+testVim('._register', function(cm,vim,helpers) {
+  cm.setCursor(0,0);
+  helpers.doKeys('i');
+  cm.replaceRange('foo',cm.getCursor());
+  helpers.doKeys('');
+  cm.openDialog = helpers.fakeOpenDialog('registers');
+  cm.openNotification = helpers.fakeOpenNotification(function(text) {
+    is(/\.\s+foo/.test(text));
+  });
+  helpers.doKeys(':');
+}, {value: ''});
+testVim(':_register', function(cm,vim,helpers) {
+  helpers.doEx('bar');
+  cm.openDialog = helpers.fakeOpenDialog('registers');
+  cm.openNotification = helpers.fakeOpenNotification(function(text) {
+    is(/:\s+bar/.test(text));
+  });
+  helpers.doKeys(':');
+}, {value: ''});
+testVim('search_register_escape', function(cm, vim, helpers) {
+  // Check that the register is restored if the user escapes rather than confirms.
+  cm.openDialog = helpers.fakeOpenDialog('waldo');
+  helpers.doKeys('/');
+  var onKeyDown;
+  var onKeyUp;
+  var KEYCODES = {
+    f: 70,
+    o: 79,
+    Esc: 27
+  };
+  cm.openDialog = function(template, callback, options) {
+    onKeyDown = options.onKeyDown;
+    onKeyUp = options.onKeyUp;
+  };
+  var close = function() {};
+  helpers.doKeys('/');
+  // Fake some keyboard events coming in.
+  onKeyDown({keyCode: KEYCODES.f}, '', close);
+  onKeyUp({keyCode: KEYCODES.f}, '', close);
+  onKeyDown({keyCode: KEYCODES.o}, 'f', close);
+  onKeyUp({keyCode: KEYCODES.o}, 'f', close);
+  onKeyDown({keyCode: KEYCODES.o}, 'fo', close);
+  onKeyUp({keyCode: KEYCODES.o}, 'fo', close);
+  onKeyDown({keyCode: KEYCODES.Esc}, 'foo', close);
+  cm.openDialog = helpers.fakeOpenDialog('registers');
+  cm.openNotification = helpers.fakeOpenNotification(function(text) {
+    is(/waldo/.test(text));
+    is(!/foo/.test(text));
+  });
+  helpers.doKeys(':');
+}, {value: ''});
+testVim('search_register', function(cm, vim, helpers) {
+  cm.openDialog = helpers.fakeOpenDialog('foo');
+  helpers.doKeys('/');
+  cm.openDialog = helpers.fakeOpenDialog('registers');
+  cm.openNotification = helpers.fakeOpenNotification(function(text) {
+    is(/\/\s+foo/.test(text));
+  });
+  helpers.doKeys(':');
+}, {value: ''});
+testVim('search_history', function(cm, vim, helpers) {
+  cm.openDialog = helpers.fakeOpenDialog('this');
+  helpers.doKeys('/');
+  cm.openDialog = helpers.fakeOpenDialog('checks');
+  helpers.doKeys('/');
+  cm.openDialog = helpers.fakeOpenDialog('search');
+  helpers.doKeys('/');
+  cm.openDialog = helpers.fakeOpenDialog('history');
+  helpers.doKeys('/');
+  cm.openDialog = helpers.fakeOpenDialog('checks');
+  helpers.doKeys('/');
+  var onKeyDown;
+  var onKeyUp;
+  var query = '';
+  var keyCodes = {
+    Up: 38,
+    Down: 40
+  };
+  cm.openDialog = function(template, callback, options) {
+    onKeyUp = options.onKeyUp;
+    onKeyDown = options.onKeyDown;
+  };
+  var close = function(newVal) {
+    if (typeof newVal == 'string') query = newVal;
+  }
+  helpers.doKeys('/');
+  onKeyDown({keyCode: keyCodes.Up}, query, close);
+  onKeyUp({keyCode: keyCodes.Up}, query, close);
+  eq(query, 'checks');
+  onKeyDown({keyCode: keyCodes.Up}, query, close);
+  onKeyUp({keyCode: keyCodes.Up}, query, close);
+  eq(query, 'history');
+  onKeyDown({keyCode: keyCodes.Up}, query, close);
+  onKeyUp({keyCode: keyCodes.Up}, query, close);
+  eq(query, 'search');
+  onKeyDown({keyCode: keyCodes.Up}, query, close);
+  onKeyUp({keyCode: keyCodes.Up}, query, close);
+  eq(query, 'this');
+  onKeyDown({keyCode: keyCodes.Down}, query, close);
+  onKeyUp({keyCode: keyCodes.Down}, query, close);
+  eq(query, 'search');
+}, {value: ''});
+testVim('exCommand_history', function(cm, vim, helpers) {
+  cm.openDialog = helpers.fakeOpenDialog('registers');
+  helpers.doKeys(':');
+  cm.openDialog = helpers.fakeOpenDialog('sort');
+  helpers.doKeys(':');
+  cm.openDialog = helpers.fakeOpenDialog('map');
+  helpers.doKeys(':');
+  cm.openDialog = helpers.fakeOpenDialog('invalid');
+  helpers.doKeys(':');
+  var onKeyDown;
+  var onKeyUp;
+  var input = '';
+  var keyCodes = {
+    Up: 38,
+    Down: 40,
+    s: 115
+  };
+  cm.openDialog = function(template, callback, options) {
+    onKeyUp = options.onKeyUp;
+    onKeyDown = options.onKeyDown;
+  };
+  var close = function(newVal) {
+    if (typeof newVal == 'string') input = newVal;
+  }
+  helpers.doKeys(':');
+  onKeyDown({keyCode: keyCodes.Up}, input, close);
+  eq(input, 'invalid');
+  onKeyDown({keyCode: keyCodes.Up}, input, close);
+  eq(input, 'map');
+  onKeyDown({keyCode: keyCodes.Up}, input, close);
+  eq(input, 'sort');
+  onKeyDown({keyCode: keyCodes.Up}, input, close);
+  eq(input, 'registers');
+  onKeyDown({keyCode: keyCodes.s}, '', close);
+  input = 's';
+  onKeyDown({keyCode: keyCodes.Up}, input, close);
+  eq(input, 'sort');
+}, {value: ''});
+testVim('search_clear', function(cm, vim, helpers) {
+  var onKeyDown;
+  var input = '';
+  var keyCodes = {
+    Ctrl: 17,
+    u: 85
+  };
+  cm.openDialog = function(template, callback, options) {
+    onKeyDown = options.onKeyDown;
+  };
+  var close = function(newVal) {
+    if (typeof newVal == 'string') input = newVal;
+  }
+  helpers.doKeys('/');
+  input = 'foo';
+  onKeyDown({keyCode: keyCodes.Ctrl}, input, close);
+  onKeyDown({keyCode: keyCodes.u, ctrlKey: true}, input, close);
+  eq(input, '');
+});
+testVim('exCommand_clear', function(cm, vim, helpers) {
+  var onKeyDown;
+  var input = '';
+  var keyCodes = {
+    Ctrl: 17,
+    u: 85
+  };
+  cm.openDialog = function(template, callback, options) {
+    onKeyDown = options.onKeyDown;
+  };
+  var close = function(newVal) {
+    if (typeof newVal == 'string') input = newVal;
+  }
+  helpers.doKeys(':');
+  input = 'foo';
+  onKeyDown({keyCode: keyCodes.Ctrl}, input, close);
+  onKeyDown({keyCode: keyCodes.u, ctrlKey: true}, input, close);
+  eq(input, '');
+});
+testVim('.', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('2', 'd', 'w');
+  helpers.doKeys('.');
+  eq('5 6', cm.getValue());
+}, { value: '1 2 3 4 5 6'});
+testVim('._repeat', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('2', 'd', 'w');
+  helpers.doKeys('3', '.');
+  eq('6', cm.getValue());
+}, { value: '1 2 3 4 5 6'});
+testVim('._insert', function(cm, vim, helpers) {
+  helpers.doKeys('i');
+  cm.replaceRange('test', cm.getCursor());
+  helpers.doKeys('');
+  helpers.doKeys('.');
+  eq('testestt', cm.getValue());
+  helpers.assertCursorAt(0, 6);
+  helpers.doKeys('O');
+  cm.replaceRange('xyz', cm.getCursor());
+  helpers.doInsertModeKeys('Backspace');
+  helpers.doInsertModeKeys('Down');
+  helpers.doKeys('');
+  helpers.doKeys('.');
+  eq('xy\nxy\ntestestt', cm.getValue());
+  helpers.assertCursorAt(1, 1);
+}, { value: ''});
+testVim('._insert_repeat', function(cm, vim, helpers) {
+  helpers.doKeys('i');
+  cm.replaceRange('test', cm.getCursor());
+  cm.setCursor(0, 4);
+  helpers.doKeys('');
+  helpers.doKeys('2', '.');
+  eq('testesttestt', cm.getValue());
+  helpers.assertCursorAt(0, 10);
+}, { value: ''});
+testVim('._repeat_insert', function(cm, vim, helpers) {
+  helpers.doKeys('3', 'i');
+  cm.replaceRange('te', cm.getCursor());
+  cm.setCursor(0, 2);
+  helpers.doKeys('');
+  helpers.doKeys('.');
+  eq('tetettetetee', cm.getValue());
+  helpers.assertCursorAt(0, 10);
+}, { value: ''});
+testVim('._insert_o', function(cm, vim, helpers) {
+  helpers.doKeys('o');
+  cm.replaceRange('z', cm.getCursor());
+  cm.setCursor(1, 1);
+  helpers.doKeys('');
+  helpers.doKeys('.');
+  eq('\nz\nz', cm.getValue());
+  helpers.assertCursorAt(2, 0);
+}, { value: ''});
+testVim('._insert_o_repeat', function(cm, vim, helpers) {
+  helpers.doKeys('o');
+  cm.replaceRange('z', cm.getCursor());
+  helpers.doKeys('');
+  cm.setCursor(1, 0);
+  helpers.doKeys('2', '.');
+  eq('\nz\nz\nz', cm.getValue());
+  helpers.assertCursorAt(3, 0);
+}, { value: ''});
+testVim('._insert_o_indent', function(cm, vim, helpers) {
+  helpers.doKeys('o');
+  cm.replaceRange('z', cm.getCursor());
+  helpers.doKeys('');
+  cm.setCursor(1, 2);
+  helpers.doKeys('.');
+  eq('{\n  z\n  z', cm.getValue());
+  helpers.assertCursorAt(2, 2);
+}, { value: '{'});
+testVim('._insert_cw', function(cm, vim, helpers) {
+  helpers.doKeys('c', 'w');
+  cm.replaceRange('test', cm.getCursor());
+  helpers.doKeys('');
+  cm.setCursor(0, 3);
+  helpers.doKeys('2', 'l');
+  helpers.doKeys('.');
+  eq('test test word3', cm.getValue());
+  helpers.assertCursorAt(0, 8);
+}, { value: 'word1 word2 word3' });
+testVim('._insert_cw_repeat', function(cm, vim, helpers) {
+  // For some reason, repeat cw in desktop VIM will does not repeat insert mode
+  // changes. Will conform to that behavior.
+  helpers.doKeys('c', 'w');
+  cm.replaceRange('test', cm.getCursor());
+  helpers.doKeys('');
+  cm.setCursor(0, 4);
+  helpers.doKeys('l');
+  helpers.doKeys('2', '.');
+  eq('test test', cm.getValue());
+  helpers.assertCursorAt(0, 8);
+}, { value: 'word1 word2 word3' });
+testVim('._delete', function(cm, vim, helpers) {
+  cm.setCursor(0, 5);
+  helpers.doKeys('i');
+  helpers.doInsertModeKeys('Backspace');
+  helpers.doKeys('');
+  helpers.doKeys('.');
+  eq('zace', cm.getValue());
+  helpers.assertCursorAt(0, 1);
+}, { value: 'zabcde'});
+testVim('._delete_repeat', function(cm, vim, helpers) {
+  cm.setCursor(0, 6);
+  helpers.doKeys('i');
+  helpers.doInsertModeKeys('Backspace');
+  helpers.doKeys('');
+  helpers.doKeys('2', '.');
+  eq('zzce', cm.getValue());
+  helpers.assertCursorAt(0, 1);
+}, { value: 'zzabcde'});
+testVim('._visual_>', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('V', 'j', '>');
+  cm.setCursor(2, 0)
+  helpers.doKeys('.');
+  eq('  1\n  2\n  3\n  4', cm.getValue());
+  helpers.assertCursorAt(2, 2);
+}, { value: '1\n2\n3\n4'});
+testVim('f;', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('f', 'x');
+  helpers.doKeys(';');
+  helpers.doKeys('2', ';');
+  eq(9, cm.getCursor().ch);
+}, { value: '01x3xx678x'});
+testVim('F;', function(cm, vim, helpers) {
+  cm.setCursor(0, 8);
+  helpers.doKeys('F', 'x');
+  helpers.doKeys(';');
+  helpers.doKeys('2', ';');
+  eq(2, cm.getCursor().ch);
+}, { value: '01x3xx6x8x'});
+testVim('t;', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('t', 'x');
+  helpers.doKeys(';');
+  helpers.doKeys('2', ';');
+  eq(8, cm.getCursor().ch);
+}, { value: '01x3xx678x'});
+testVim('T;', function(cm, vim, helpers) {
+  cm.setCursor(0, 9);
+  helpers.doKeys('T', 'x');
+  helpers.doKeys(';');
+  helpers.doKeys('2', ';');
+  eq(2, cm.getCursor().ch);
+}, { value: '0xx3xx678x'});
+testVim('f,', function(cm, vim, helpers) {
+  cm.setCursor(0, 6);
+  helpers.doKeys('f', 'x');
+  helpers.doKeys(',');
+  helpers.doKeys('2', ',');
+  eq(2, cm.getCursor().ch);
+}, { value: '01x3xx678x'});
+testVim('F,', function(cm, vim, helpers) {
+  cm.setCursor(0, 3);
+  helpers.doKeys('F', 'x');
+  helpers.doKeys(',');
+  helpers.doKeys('2', ',');
+  eq(9, cm.getCursor().ch);
+}, { value: '01x3xx678x'});
+testVim('t,', function(cm, vim, helpers) {
+  cm.setCursor(0, 6);
+  helpers.doKeys('t', 'x');
+  helpers.doKeys(',');
+  helpers.doKeys('2', ',');
+  eq(3, cm.getCursor().ch);
+}, { value: '01x3xx678x'});
+testVim('T,', function(cm, vim, helpers) {
+  cm.setCursor(0, 4);
+  helpers.doKeys('T', 'x');
+  helpers.doKeys(',');
+  helpers.doKeys('2', ',');
+  eq(8, cm.getCursor().ch);
+}, { value: '01x3xx67xx'});
+testVim('fd,;', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('f', '4');
+  cm.setCursor(0, 0);
+  helpers.doKeys('d', ';');
+  eq('56789', cm.getValue());
+  helpers.doKeys('u');
+  cm.setCursor(0, 9);
+  helpers.doKeys('d', ',');
+  eq('01239', cm.getValue());
+}, { value: '0123456789'});
+testVim('Fd,;', function(cm, vim, helpers) {
+  cm.setCursor(0, 9);
+  helpers.doKeys('F', '4');
+  cm.setCursor(0, 9);
+  helpers.doKeys('d', ';');
+  eq('01239', cm.getValue());
+  helpers.doKeys('u');
+  cm.setCursor(0, 0);
+  helpers.doKeys('d', ',');
+  eq('56789', cm.getValue());
+}, { value: '0123456789'});
+testVim('td,;', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('t', '4');
+  cm.setCursor(0, 0);
+  helpers.doKeys('d', ';');
+  eq('456789', cm.getValue());
+  helpers.doKeys('u');
+  cm.setCursor(0, 9);
+  helpers.doKeys('d', ',');
+  eq('012349', cm.getValue());
+}, { value: '0123456789'});
+testVim('Td,;', function(cm, vim, helpers) {
+  cm.setCursor(0, 9);
+  helpers.doKeys('T', '4');
+  cm.setCursor(0, 9);
+  helpers.doKeys('d', ';');
+  eq('012349', cm.getValue());
+  helpers.doKeys('u');
+  cm.setCursor(0, 0);
+  helpers.doKeys('d', ',');
+  eq('456789', cm.getValue());
+}, { value: '0123456789'});
+testVim('fc,;', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('f', '4');
+  cm.setCursor(0, 0);
+  helpers.doKeys('c', ';', '');
+  eq('56789', cm.getValue());
+  helpers.doKeys('u');
+  cm.setCursor(0, 9);
+  helpers.doKeys('c', ',');
+  eq('01239', cm.getValue());
+}, { value: '0123456789'});
+testVim('Fc,;', function(cm, vim, helpers) {
+  cm.setCursor(0, 9);
+  helpers.doKeys('F', '4');
+  cm.setCursor(0, 9);
+  helpers.doKeys('c', ';', '');
+  eq('01239', cm.getValue());
+  helpers.doKeys('u');
+  cm.setCursor(0, 0);
+  helpers.doKeys('c', ',');
+  eq('56789', cm.getValue());
+}, { value: '0123456789'});
+testVim('tc,;', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('t', '4');
+  cm.setCursor(0, 0);
+  helpers.doKeys('c', ';', '');
+  eq('456789', cm.getValue());
+  helpers.doKeys('u');
+  cm.setCursor(0, 9);
+  helpers.doKeys('c', ',');
+  eq('012349', cm.getValue());
+}, { value: '0123456789'});
+testVim('Tc,;', function(cm, vim, helpers) {
+  cm.setCursor(0, 9);
+  helpers.doKeys('T', '4');
+  cm.setCursor(0, 9);
+  helpers.doKeys('c', ';', '');
+  eq('012349', cm.getValue());
+  helpers.doKeys('u');
+  cm.setCursor(0, 0);
+  helpers.doKeys('c', ',');
+  eq('456789', cm.getValue());
+}, { value: '0123456789'});
+testVim('fy,;', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('f', '4');
+  cm.setCursor(0, 0);
+  helpers.doKeys('y', ';', 'P');
+  eq('012340123456789', cm.getValue());
+  helpers.doKeys('u');
+  cm.setCursor(0, 9);
+  helpers.doKeys('y', ',', 'P');
+  eq('012345678456789', cm.getValue());
+}, { value: '0123456789'});
+testVim('Fy,;', function(cm, vim, helpers) {
+  cm.setCursor(0, 9);
+  helpers.doKeys('F', '4');
+  cm.setCursor(0, 9);
+  helpers.doKeys('y', ';', 'p');
+  eq('012345678945678', cm.getValue());
+  helpers.doKeys('u');
+  cm.setCursor(0, 0);
+  helpers.doKeys('y', ',', 'P');
+  eq('012340123456789', cm.getValue());
+}, { value: '0123456789'});
+testVim('ty,;', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys('t', '4');
+  cm.setCursor(0, 0);
+  helpers.doKeys('y', ';', 'P');
+  eq('01230123456789', cm.getValue());
+  helpers.doKeys('u');
+  cm.setCursor(0, 9);
+  helpers.doKeys('y', ',', 'p');
+  eq('01234567895678', cm.getValue());
+}, { value: '0123456789'});
+testVim('Ty,;', function(cm, vim, helpers) {
+  cm.setCursor(0, 9);
+  helpers.doKeys('T', '4');
+  cm.setCursor(0, 9);
+  helpers.doKeys('y', ';', 'p');
+  eq('01234567895678', cm.getValue());
+  helpers.doKeys('u');
+  cm.setCursor(0, 0);
+  helpers.doKeys('y', ',', 'P');
+  eq('01230123456789', cm.getValue());
+}, { value: '0123456789'});
+testVim('HML', function(cm, vim, helpers) {
+  var lines = 35;
+  var textHeight = cm.defaultTextHeight();
+  cm.setSize(600, lines*textHeight);
+  cm.setCursor(120, 0);
+  helpers.doKeys('H');
+  helpers.assertCursorAt(86, 2);
+  helpers.doKeys('L');
+  helpers.assertCursorAt(120, 4);
+  helpers.doKeys('M');
+  helpers.assertCursorAt(103,4);
+}, { value: (function(){
+  var lines = new Array(100);
+  var upper = '  xx\n';
+  var lower = '    xx\n';
+  upper = lines.join(upper);
+  lower = lines.join(lower);
+  return upper + lower;
+})()});
+
+var zVals = [];
+forEach(['zb','zz','zt','z-','z.','z'], function(e, idx){
+  var lineNum = 250;
+  var lines = 35;
+  testVim(e, function(cm, vim, helpers) {
+    var k1 = e[0];
+    var k2 = e.substring(1);
+    var textHeight = cm.defaultTextHeight();
+    cm.setSize(600, lines*textHeight);
+    cm.setCursor(lineNum, 0);
+    helpers.doKeys(k1, k2);
+    zVals[idx] = cm.getScrollInfo().top;
+  }, { value: (function(){
+    return new Array(500).join('\n');
+  })()});
+});
+testVim('zb_to_bottom', function(cm, vim, helpers){
+  var lineNum = 250;
+  cm.setSize(600, 35*cm.defaultTextHeight());
+  cm.setCursor(lineNum, 0);
+  helpers.doKeys('z', 'b');
+  var scrollInfo = cm.getScrollInfo();
+  eq(scrollInfo.top + scrollInfo.clientHeight, cm.charCoords(Pos(lineNum, 0), 'local').bottom);
+}, { value: (function(){
+  return new Array(500).join('\n');
+})()});
+testVim('zt_to_top', function(cm, vim, helpers){
+  var lineNum = 250;
+  cm.setSize(600, 35*cm.defaultTextHeight());
+  cm.setCursor(lineNum, 0);
+  helpers.doKeys('z', 't');
+  eq(cm.getScrollInfo().top, cm.charCoords(Pos(lineNum, 0), 'local').top);
+}, { value: (function(){
+  return new Array(500).join('\n');
+})()});
+testVim('zb', function(cm, vim, helpers){
+  eq(zVals[2], zVals[5]);
+});
+
+var moveTillCharacterSandbox =
+  'The quick brown fox \n';
+testVim('moveTillCharacter', function(cm, vim, helpers){
+  cm.setCursor(0, 0);
+  // Search for the 'q'.
+  cm.openDialog = helpers.fakeOpenDialog('q');
+  helpers.doKeys('/');
+  eq(4, cm.getCursor().ch);
+  // Jump to just before the first o in the list.
+  helpers.doKeys('t');
+  helpers.doKeys('o');
+  eq('The quick brown fox \n', cm.getValue());
+  // Delete that one character.
+  helpers.doKeys('d');
+  helpers.doKeys('t');
+  helpers.doKeys('o');
+  eq('The quick bown fox \n', cm.getValue());
+  // Delete everything until the next 'o'.
+  helpers.doKeys('.');
+  eq('The quick box \n', cm.getValue());
+  // An unmatched character should have no effect.
+  helpers.doKeys('d');
+  helpers.doKeys('t');
+  helpers.doKeys('q');
+  eq('The quick box \n', cm.getValue());
+  // Matches should only be possible on single lines.
+  helpers.doKeys('d');
+  helpers.doKeys('t');
+  helpers.doKeys('z');
+  eq('The quick box \n', cm.getValue());
+  // After all that, the search for 'q' should still be active, so the 'N' command
+  // can run it again in reverse. Use that to delete everything back to the 'q'.
+  helpers.doKeys('d');
+  helpers.doKeys('N');
+  eq('The ox \n', cm.getValue());
+  eq(4, cm.getCursor().ch);
+}, { value: moveTillCharacterSandbox});
+testVim('searchForPipe', function(cm, vim, helpers){
+  CodeMirror.Vim.setOption('pcre', false);
+  cm.setCursor(0, 0);
+  // Search for the '|'.
+  cm.openDialog = helpers.fakeOpenDialog('|');
+  helpers.doKeys('/');
+  eq(4, cm.getCursor().ch);
+}, { value: 'this|that'});
+
+
+var scrollMotionSandbox =
+  '\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n';
+testVim('scrollMotion', function(cm, vim, helpers){
+  var prevCursor, prevScrollInfo;
+  cm.setCursor(0, 0);
+  // ctrl-y at the top of the file should have no effect.
+  helpers.doKeys('');
+  eq(0, cm.getCursor().line);
+  prevScrollInfo = cm.getScrollInfo();
+  helpers.doKeys('');
+  eq(1, cm.getCursor().line);
+  is(prevScrollInfo.top < cm.getScrollInfo().top);
+  // Jump to the end of the sandbox.
+  cm.setCursor(1000, 0);
+  prevCursor = cm.getCursor();
+  // ctrl-e at the bottom of the file should have no effect.
+  helpers.doKeys('');
+  eq(prevCursor.line, cm.getCursor().line);
+  prevScrollInfo = cm.getScrollInfo();
+  helpers.doKeys('');
+  eq(prevCursor.line - 1, cm.getCursor().line, "Y");
+  is(prevScrollInfo.top > cm.getScrollInfo().top);
+}, { value: scrollMotionSandbox});
+
+var squareBracketMotionSandbox = ''+
+  '({\n'+//0
+  '  ({\n'+//11
+  '  /*comment {\n'+//2
+  '            */(\n'+//3
+  '#else                \n'+//4
+  '  /*       )\n'+//5
+  '#if        }\n'+//6
+  '  )}*/\n'+//7
+  ')}\n'+//8
+  '{}\n'+//9
+  '#else {{\n'+//10
+  '{}\n'+//11
+  '}\n'+//12
+  '{\n'+//13
+  '#endif\n'+//14
+  '}\n'+//15
+  '}\n'+//16
+  '#else';//17
+testVim('[[, ]]', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys(']', ']');
+  helpers.assertCursorAt(9,0);
+  helpers.doKeys('2', ']', ']');
+  helpers.assertCursorAt(13,0);
+  helpers.doKeys(']', ']');
+  helpers.assertCursorAt(17,0);
+  helpers.doKeys('[', '[');
+  helpers.assertCursorAt(13,0);
+  helpers.doKeys('2', '[', '[');
+  helpers.assertCursorAt(9,0);
+  helpers.doKeys('[', '[');
+  helpers.assertCursorAt(0,0);
+}, { value: squareBracketMotionSandbox});
+testVim('[], ][', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doKeys(']', '[');
+  helpers.assertCursorAt(12,0);
+  helpers.doKeys('2', ']', '[');
+  helpers.assertCursorAt(16,0);
+  helpers.doKeys(']', '[');
+  helpers.assertCursorAt(17,0);
+  helpers.doKeys('[', ']');
+  helpers.assertCursorAt(16,0);
+  helpers.doKeys('2', '[', ']');
+  helpers.assertCursorAt(12,0);
+  helpers.doKeys('[', ']');
+  helpers.assertCursorAt(0,0);
+}, { value: squareBracketMotionSandbox});
+testVim('[{, ]}', function(cm, vim, helpers) {
+  cm.setCursor(4, 10);
+  helpers.doKeys('[', '{');
+  helpers.assertCursorAt(2,12);
+  helpers.doKeys('2', '[', '{');
+  helpers.assertCursorAt(0,1);
+  cm.setCursor(4, 10);
+  helpers.doKeys(']', '}');
+  helpers.assertCursorAt(6,11);
+  helpers.doKeys('2', ']', '}');
+  helpers.assertCursorAt(8,1);
+  cm.setCursor(0,1);
+  helpers.doKeys(']', '}');
+  helpers.assertCursorAt(8,1);
+  helpers.doKeys('[', '{');
+  helpers.assertCursorAt(0,1);
+}, { value: squareBracketMotionSandbox});
+testVim('[(, ])', function(cm, vim, helpers) {
+  cm.setCursor(4, 10);
+  helpers.doKeys('[', '(');
+  helpers.assertCursorAt(3,14);
+  helpers.doKeys('2', '[', '(');
+  helpers.assertCursorAt(0,0);
+  cm.setCursor(4, 10);
+  helpers.doKeys(']', ')');
+  helpers.assertCursorAt(5,11);
+  helpers.doKeys('2', ']', ')');
+  helpers.assertCursorAt(8,0);
+  helpers.doKeys('[', '(');
+  helpers.assertCursorAt(0,0);
+  helpers.doKeys(']', ')');
+  helpers.assertCursorAt(8,0);
+}, { value: squareBracketMotionSandbox});
+testVim('[*, ]*, [/, ]/', function(cm, vim, helpers) {
+  forEach(['*', '/'], function(key){
+    cm.setCursor(7, 0);
+    helpers.doKeys('2', '[', key);
+    helpers.assertCursorAt(2,2);
+    helpers.doKeys('2', ']', key);
+    helpers.assertCursorAt(7,5);
+  });
+}, { value: squareBracketMotionSandbox});
+testVim('[#, ]#', function(cm, vim, helpers) {
+  cm.setCursor(10, 3);
+  helpers.doKeys('2', '[', '#');
+  helpers.assertCursorAt(4,0);
+  helpers.doKeys('5', ']', '#');
+  helpers.assertCursorAt(17,0);
+  cm.setCursor(10, 3);
+  helpers.doKeys(']', '#');
+  helpers.assertCursorAt(14,0);
+}, { value: squareBracketMotionSandbox});
+testVim('[m, ]m, [M, ]M', function(cm, vim, helpers) {
+  cm.setCursor(11, 0);
+  helpers.doKeys('[', 'm');
+  helpers.assertCursorAt(10,7);
+  helpers.doKeys('4', '[', 'm');
+  helpers.assertCursorAt(1,3);
+  helpers.doKeys('5', ']', 'm');
+  helpers.assertCursorAt(11,0);
+  helpers.doKeys('[', 'M');
+  helpers.assertCursorAt(9,1);
+  helpers.doKeys('3', ']', 'M');
+  helpers.assertCursorAt(15,0);
+  helpers.doKeys('5', '[', 'M');
+  helpers.assertCursorAt(7,3);
+}, { value: squareBracketMotionSandbox});
+
+testVim('i_indent_right', function(cm, vim, helpers) {
+  cm.setCursor(0, 3);
+  var expectedValue = '   word1\nword2\nword3 ';
+  helpers.doKeys('i', '');
+  eq(expectedValue, cm.getValue());
+  helpers.assertCursorAt(0, 5);
+}, { value: ' word1\nword2\nword3 ', indentUnit: 2 });
+testVim('i_indent_left', function(cm, vim, helpers) {
+  cm.setCursor(0, 3);
+  var expectedValue = ' word1\nword2\nword3 ';
+  helpers.doKeys('i', '');
+  eq(expectedValue, cm.getValue());
+  helpers.assertCursorAt(0, 1);
+}, { value: '   word1\nword2\nword3 ', indentUnit: 2 });
+
+// Ex mode tests
+testVim('ex_go_to_line', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doEx('4');
+  helpers.assertCursorAt(3, 0);
+}, { value: 'a\nb\nc\nd\ne\n'});
+testVim('ex_write', function(cm, vim, helpers) {
+  var tmp = CodeMirror.commands.save;
+  var written;
+  var actualCm;
+  CodeMirror.commands.save = function(cm) {
+    written = true;
+    actualCm = cm;
+  };
+  // Test that w, wr, wri ... write all trigger :write.
+  var command = 'write';
+  for (var i = 1; i < command.length; i++) {
+    written = false;
+    actualCm = null;
+    helpers.doEx(command.substring(0, i));
+    eq(written, true);
+    eq(actualCm, cm);
+  }
+  CodeMirror.commands.save = tmp;
+});
+testVim('ex_sort', function(cm, vim, helpers) {
+  helpers.doEx('sort');
+  eq('Z\na\nb\nc\nd', cm.getValue());
+}, { value: 'b\nZ\nd\nc\na'});
+testVim('ex_sort_reverse', function(cm, vim, helpers) {
+  helpers.doEx('sort!');
+  eq('d\nc\nb\na', cm.getValue());
+}, { value: 'b\nd\nc\na'});
+testVim('ex_sort_range', function(cm, vim, helpers) {
+  helpers.doEx('2,3sort');
+  eq('b\nc\nd\na', cm.getValue());
+}, { value: 'b\nd\nc\na'});
+testVim('ex_sort_oneline', function(cm, vim, helpers) {
+  helpers.doEx('2sort');
+  // Expect no change.
+  eq('b\nd\nc\na', cm.getValue());
+}, { value: 'b\nd\nc\na'});
+testVim('ex_sort_ignoreCase', function(cm, vim, helpers) {
+  helpers.doEx('sort i');
+  eq('a\nb\nc\nd\nZ', cm.getValue());
+}, { value: 'b\nZ\nd\nc\na'});
+testVim('ex_sort_unique', function(cm, vim, helpers) {
+  helpers.doEx('sort u');
+  eq('Z\na\nb\nc\nd', cm.getValue());
+}, { value: 'b\nZ\na\na\nd\na\nc\na'});
+testVim('ex_sort_decimal', function(cm, vim, helpers) {
+  helpers.doEx('sort d');
+  eq('d3\n s5\n6\n.9', cm.getValue());
+}, { value: '6\nd3\n s5\n.9'});
+testVim('ex_sort_decimal_negative', function(cm, vim, helpers) {
+  helpers.doEx('sort d');
+  eq('z-9\nd3\n s5\n6\n.9', cm.getValue());
+}, { value: '6\nd3\n s5\n.9\nz-9'});
+testVim('ex_sort_decimal_reverse', function(cm, vim, helpers) {
+  helpers.doEx('sort! d');
+  eq('.9\n6\n s5\nd3', cm.getValue());
+}, { value: '6\nd3\n s5\n.9'});
+testVim('ex_sort_hex', function(cm, vim, helpers) {
+  helpers.doEx('sort x');
+  eq(' s5\n6\n.9\n&0xB\nd3', cm.getValue());
+}, { value: '6\nd3\n s5\n&0xB\n.9'});
+testVim('ex_sort_octal', function(cm, vim, helpers) {
+  helpers.doEx('sort o');
+  eq('.9\n.8\nd3\n s5\n6', cm.getValue());
+}, { value: '6\nd3\n s5\n.9\n.8'});
+testVim('ex_sort_decimal_mixed', function(cm, vim, helpers) {
+  helpers.doEx('sort d');
+  eq('z\ny\nc1\nb2\na3', cm.getValue());
+}, { value: 'a3\nz\nc1\ny\nb2'});
+testVim('ex_sort_decimal_mixed_reverse', function(cm, vim, helpers) {
+  helpers.doEx('sort! d');
+  eq('a3\nb2\nc1\nz\ny', cm.getValue());
+}, { value: 'a3\nz\nc1\ny\nb2'});
+testVim('ex_sort_pattern_alpha', function(cm, vim, helpers) {
+  helpers.doEx('sort /[a-z]/');
+  eq('a3\nb2\nc1\ny\nz', cm.getValue());
+}, { value: 'z\ny\nc1\nb2\na3'});
+testVim('ex_sort_pattern_alpha_reverse', function(cm, vim, helpers) {
+  helpers.doEx('sort! /[a-z]/');
+  eq('z\ny\nc1\nb2\na3', cm.getValue());
+}, { value: 'z\ny\nc1\nb2\na3'});
+testVim('ex_sort_pattern_alpha_ignoreCase', function(cm, vim, helpers) {
+  helpers.doEx('sort i/[a-z]/');
+  eq('a3\nb2\nC1\nY\nz', cm.getValue());
+}, { value: 'z\nY\nC1\nb2\na3'});
+testVim('ex_sort_pattern_alpha_longer', function(cm, vim, helpers) {
+  helpers.doEx('sort /[a-z]+/');
+  eq('a\naa\nab\nade\nadele\nadelle\nadriana\nalex\nalexandra\nb\nc\ny\nz', cm.getValue());
+}, { value: 'z\nab\naa\nade\nadelle\nalexandra\nalex\nadriana\nadele\ny\nc\nb\na'});
+testVim('ex_sort_pattern_alpha_only', function(cm, vim, helpers) {
+  helpers.doEx('sort /^[a-z]$/');
+  eq('z1\ny2\na3\nb\nc', cm.getValue());
+}, { value: 'z1\ny2\na3\nc\nb'});
+testVim('ex_sort_pattern_alpha_only_reverse', function(cm, vim, helpers) {
+  helpers.doEx('sort! /^[a-z]$/');
+  eq('c\nb\nz1\ny2\na3', cm.getValue());
+}, { value: 'z1\ny2\na3\nc\nb'});
+testVim('ex_sort_pattern_alpha_num', function(cm, vim, helpers) {
+  helpers.doEx('sort /[a-z][0-9]/');
+  eq('c\nb\na3\ny2\nz1', cm.getValue());
+}, { value: 'z1\ny2\na3\nc\nb'});
+// test for :global command
+testVim('ex_global', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  helpers.doEx('g/one/s//two');
+  eq('two two\n two two\n two two', cm.getValue());
+  helpers.doEx('1,2g/two/s//one');
+  eq('one one\n one one\n two two', cm.getValue());
+}, {value: 'one one\n one one\n one one'});
+testVim('ex_global_confirm', function(cm, vim, helpers) {
+  cm.setCursor(0, 0);
+  var onKeyDown;
+  var openDialogSave = cm.openDialog;
+  var KEYCODES = {
+    a: 65,
+    n: 78,
+    q: 81,
+    y: 89
+  };
+  // Intercept the ex command, 'global'
+  cm.openDialog = function(template, callback, options) {
+    // Intercept the prompt for the embedded ex command, 'substitute'
+    cm.openDialog = function(template, callback, options) {
+      onKeyDown = options.onKeyDown;
+    };
+    callback('g/one/s//two/gc');
+  };
+  helpers.doKeys(':');
+  var close = function() {};
+  onKeyDown({keyCode: KEYCODES.n}, '', close);
+  onKeyDown({keyCode: KEYCODES.y}, '', close);
+  onKeyDown({keyCode: KEYCODES.a}, '', close);
+  onKeyDown({keyCode: KEYCODES.q}, '', close);
+  onKeyDown({keyCode: KEYCODES.y}, '', close);
+  eq('one two\n two two\n one one\n two one\n one one', cm.getValue());
+}, {value: 'one one\n one one\n one one\n one one\n one one'});
+// Basic substitute tests.
+testVim('ex_substitute_same_line', function(cm, vim, helpers) {
+  cm.setCursor(1, 0);
+  helpers.doEx('s/one/two/g');
+  eq('one one\n two two', cm.getValue());
+}, { value: 'one one\n one one'});
+testVim('ex_substitute_full_file', function(cm, vim, helpers) {
+  cm.setCursor(1, 0);
+  helpers.doEx('%s/one/two/g');
+  eq('two two\n two two', cm.getValue());
+}, { value: 'one one\n one one'});
+testVim('ex_substitute_input_range', function(cm, vim, helpers) {
+  cm.setCursor(1, 0);
+  helpers.doEx('1,3s/\\d/0/g');
+  eq('0\n0\n0\n4', cm.getValue());
+}, { value: '1\n2\n3\n4' });
+testVim('ex_substitute_visual_range', function(cm, vim, helpers) {
+  cm.setCursor(1, 0);
+  // Set last visual mode selection marks '< and '> at lines 2 and 4
+  helpers.doKeys('V', '2', 'j', 'v');
+  helpers.doEx('\'<,\'>s/\\d/0/g');
+  eq('1\n0\n0\n0\n5', cm.getValue());
+}, { value: '1\n2\n3\n4\n5' });
+testVim('ex_substitute_empty_query', function(cm, vim, helpers) {
+  // If the query is empty, use last query.
+  cm.setCursor(1, 0);
+  cm.openDialog = helpers.fakeOpenDialog('1');
+  helpers.doKeys('/');
+  helpers.doEx('s//b/g');
+  eq('abb ab2 ab3', cm.getValue());
+}, { value: 'a11 a12 a13' });
+testVim('ex_substitute_javascript', function(cm, vim, helpers) {
+  CodeMirror.Vim.setOption('pcre', false);
+  cm.setCursor(1, 0);
+  // Throw all the things that javascript likes to treat as special values
+  // into the replace part. All should be literal (this is VIM).
+  helpers.doEx('s/\\(\\d+\\)/$$ $\' $` $& \\1/g')
+  eq('a $$ $\' $` $& 0 b', cm.getValue());
+}, { value: 'a 0 b' });
+testVim('ex_substitute_empty_arguments', function(cm,vim,helpers) {
+  cm.setCursor(0, 0);
+  helpers.doEx('s/a/b/g');
+  cm.setCursor(1, 0);
+  helpers.doEx('s');
+  eq('b b\nb a', cm.getValue());
+}, {value: 'a a\na a'});
+
+// More complex substitute tests that test both pcre and nopcre options.
+function testSubstitute(name, options) {
+  testVim(name + '_pcre', function(cm, vim, helpers) {
+    cm.setCursor(1, 0);
+    CodeMirror.Vim.setOption('pcre', true);
+    helpers.doEx(options.expr);
+    eq(options.expectedValue, cm.getValue());
+  }, options);
+  // If no noPcreExpr is defined, assume that it's the same as the expr.
+  var noPcreExpr = options.noPcreExpr ? options.noPcreExpr : options.expr;
+  testVim(name + '_nopcre', function(cm, vim, helpers) {
+    cm.setCursor(1, 0);
+    CodeMirror.Vim.setOption('pcre', false);
+    helpers.doEx(noPcreExpr);
+    eq(options.expectedValue, cm.getValue());
+  }, options);
+}
+testSubstitute('ex_substitute_capture', {
+  value: 'a11 a12 a13',
+  expectedValue: 'a1111 a1212 a1313',
+  // $n is a backreference
+  expr: 's/(\\d+)/$1$1/g',
+  // \n is a backreference.
+  noPcreExpr: 's/\\(\\d+\\)/\\1\\1/g'});
+testSubstitute('ex_substitute_capture2', {
+  value: 'a 0 b',
+  expectedValue: 'a $00 b',
+  expr: 's/(\\d+)/$$$1$1/g',
+  noPcreExpr: 's/\\(\\d+\\)/$\\1\\1/g'});
+testSubstitute('ex_substitute_nocapture', {
+  value: 'a11 a12 a13',
+  expectedValue: 'a$1$1 a$1$1 a$1$1',
+  expr: 's/(\\d+)/$$1$$1/g',
+  noPcreExpr: 's/\\(\\d+\\)/$1$1/g'});
+testSubstitute('ex_substitute_nocapture2', {
+  value: 'a 0 b',
+  expectedValue: 'a $10 b',
+  expr: 's/(\\d+)/$$1$1/g',
+  noPcreExpr: 's/\\(\\d+\\)/\\$1\\1/g'});
+testSubstitute('ex_substitute_nocapture', {
+  value: 'a b c',
+  expectedValue: 'a $ c',
+  expr: 's/b/$$/',
+  noPcreExpr: 's/b/$/'});
+testSubstitute('ex_substitute_slash_regex', {
+  value: 'one/two \n three/four',
+  expectedValue: 'one|two \n three|four',
+  expr: '%s/\\//|'});
+testSubstitute('ex_substitute_pipe_regex', {
+  value: 'one|two \n three|four',
+  expectedValue: 'one,two \n three,four',
+  expr: '%s/\\|/,/',
+  noPcreExpr: '%s/|/,/'});
+testSubstitute('ex_substitute_or_regex', {
+  value: 'one|two \n three|four',
+  expectedValue: 'ana|twa \n thraa|faar',
+  expr: '%s/o|e|u/a/g',
+  noPcreExpr: '%s/o\\|e\\|u/a/g'});
+testSubstitute('ex_substitute_or_word_regex', {
+  value: 'one|two \n three|four',
+  expectedValue: 'five|five \n three|four',
+  expr: '%s/(one|two)/five/g',
+  noPcreExpr: '%s/\\(one\\|two\\)/five/g'});
+testSubstitute('ex_substitute_backslashslash_regex', {
+  value: 'one\\two \n three\\four',
+  expectedValue: 'one,two \n three,four',
+  expr: '%s/\\\\/,'});
+testSubstitute('ex_substitute_slash_replacement', {
+  value: 'one,two \n three,four',
+  expectedValue: 'one/two \n three/four',
+  expr: '%s/,/\\/'});
+testSubstitute('ex_substitute_backslash_replacement', {
+  value: 'one,two \n three,four',
+  expectedValue: 'one\\two \n three\\four',
+  expr: '%s/,/\\\\/g'});
+testSubstitute('ex_substitute_multibackslash_replacement', {
+  value: 'one,two \n three,four',
+  expectedValue: 'one\\\\\\\\two \n three\\\\\\\\four', // 2*8 backslashes.
+  expr: '%s/,/\\\\\\\\\\\\\\\\/g'}); // 16 backslashes.
+testSubstitute('ex_substitute_newline_replacement', {
+  value: 'one,two \n three,four',
+  expectedValue: 'one\ntwo \n three\nfour',
+  expr: '%s/,/\\n/g'});
+testSubstitute('ex_substitute_braces_word', {
+  value: 'ababab abb ab{2}',
+  expectedValue: 'ab abb ab{2}',
+  expr: '%s/(ab){2}//g',
+  noPcreExpr: '%s/\\(ab\\)\\{2\\}//g'});
+testSubstitute('ex_substitute_braces_range', {
+  value: 'a aa aaa aaaa',
+  expectedValue: 'a   a',
+  expr: '%s/a{2,3}//g',
+  noPcreExpr: '%s/a\\{2,3\\}//g'});
+testSubstitute('ex_substitute_braces_literal', {
+  value: 'ababab abb ab{2}',
+  expectedValue: 'ababab abb ',
+  expr: '%s/ab\\{2\\}//g',
+  noPcreExpr: '%s/ab{2}//g'});
+testSubstitute('ex_substitute_braces_char', {
+  value: 'ababab abb ab{2}',
+  expectedValue: 'ababab  ab{2}',
+  expr: '%s/ab{2}//g',
+  noPcreExpr: '%s/ab\\{2\\}//g'});
+testSubstitute('ex_substitute_braces_no_escape', {
+  value: 'ababab abb ab{2}',
+  expectedValue: 'ababab  ab{2}',
+  expr: '%s/ab{2}//g',
+  noPcreExpr: '%s/ab\\{2}//g'});
+testSubstitute('ex_substitute_count', {
+  value: '1\n2\n3\n4',
+  expectedValue: '1\n0\n0\n4',
+  expr: 's/\\d/0/i 2'});
+testSubstitute('ex_substitute_count_with_range', {
+  value: '1\n2\n3\n4',
+  expectedValue: '1\n2\n0\n0',
+  expr: '1,3s/\\d/0/ 3'});
+testSubstitute('ex_substitute_not_global', {
+  value: 'aaa\nbaa\ncaa',
+  expectedValue: 'xaa\nbxa\ncxa',
+  expr: '%s/a/x/'});
+function testSubstituteConfirm(name, command, initialValue, expectedValue, keys, finalPos) {
+  testVim(name, function(cm, vim, helpers) {
+    var savedOpenDialog = cm.openDialog;
+    var savedKeyName = CodeMirror.keyName;
+    var onKeyDown;
+    var recordedCallback;
+    var closed = true; // Start out closed, set false on second openDialog.
+    function close() {
+      closed = true;
+    }
+    // First openDialog should save callback.
+    cm.openDialog = function(template, callback, options) {
+      recordedCallback = callback;
+    }
+    // Do first openDialog.
+    helpers.doKeys(':');
+    // Second openDialog should save keyDown handler.
+    cm.openDialog = function(template, callback, options) {
+      onKeyDown = options.onKeyDown;
+      closed = false;
+    };
+    // Return the command to Vim and trigger second openDialog.
+    recordedCallback(command);
+    // The event should really use keyCode, but here just mock it out and use
+    // key and replace keyName to just return key.
+    CodeMirror.keyName = function (e) { return e.key; }
+    keys = keys.toUpperCase();
+    for (var i = 0; i < keys.length; i++) {
+      is(!closed);
+      onKeyDown({ key: keys.charAt(i) }, '', close);
+    }
+    try {
+      eq(expectedValue, cm.getValue());
+      helpers.assertCursorAt(finalPos);
+      is(closed);
+    } catch(e) {
+      throw e
+    } finally {
+      // Restore overridden functions.
+      CodeMirror.keyName = savedKeyName;
+      cm.openDialog = savedOpenDialog;
+    }
+  }, { value: initialValue });
+};
+testSubstituteConfirm('ex_substitute_confirm_emptydoc',
+    '%s/x/b/c', '', '', '', makeCursor(0, 0));
+testSubstituteConfirm('ex_substitute_confirm_nomatch',
+    '%s/x/b/c', 'ba a\nbab', 'ba a\nbab', '', makeCursor(0, 0));
+testSubstituteConfirm('ex_substitute_confirm_accept',
+    '%s/a/b/cg', 'ba a\nbab', 'bb b\nbbb', 'yyy', makeCursor(1, 1));
+testSubstituteConfirm('ex_substitute_confirm_random_keys',
+    '%s/a/b/cg', 'ba a\nbab', 'bb b\nbbb', 'ysdkywerty', makeCursor(1, 1));
+testSubstituteConfirm('ex_substitute_confirm_some',
+    '%s/a/b/cg', 'ba a\nbab', 'bb a\nbbb', 'yny', makeCursor(1, 1));
+testSubstituteConfirm('ex_substitute_confirm_all',
+    '%s/a/b/cg', 'ba a\nbab', 'bb b\nbbb', 'a', makeCursor(1, 1));
+testSubstituteConfirm('ex_substitute_confirm_accept_then_all',
+    '%s/a/b/cg', 'ba a\nbab', 'bb b\nbbb', 'ya', makeCursor(1, 1));
+testSubstituteConfirm('ex_substitute_confirm_quit',
+    '%s/a/b/cg', 'ba a\nbab', 'bb a\nbab', 'yq', makeCursor(0, 3));
+testSubstituteConfirm('ex_substitute_confirm_last',
+    '%s/a/b/cg', 'ba a\nbab', 'bb b\nbab', 'yl', makeCursor(0, 3));
+testSubstituteConfirm('ex_substitute_confirm_oneline',
+    '1s/a/b/cg', 'ba a\nbab', 'bb b\nbab', 'yl', makeCursor(0, 3));
+testSubstituteConfirm('ex_substitute_confirm_range_accept',
+    '1,2s/a/b/cg', 'aa\na \na\na', 'bb\nb \na\na', 'yyy', makeCursor(1, 0));
+testSubstituteConfirm('ex_substitute_confirm_range_some',
+    '1,3s/a/b/cg', 'aa\na \na\na', 'ba\nb \nb\na', 'ynyy', makeCursor(2, 0));
+testSubstituteConfirm('ex_substitute_confirm_range_all',
+    '1,3s/a/b/cg', 'aa\na \na\na', 'bb\nb \nb\na', 'a', makeCursor(2, 0));
+testSubstituteConfirm('ex_substitute_confirm_range_last',
+    '1,3s/a/b/cg', 'aa\na \na\na', 'bb\nb \na\na', 'yyl', makeCursor(1, 0));
+//:noh should clear highlighting of search-results but allow to resume search through n
+testVim('ex_noh_clearSearchHighlight', function(cm, vim, helpers) {
+  cm.openDialog = helpers.fakeOpenDialog('match');
+  helpers.doKeys('?');
+  helpers.doEx('noh');
+  eq(vim.searchState_.getOverlay(),null,'match-highlighting wasn\'t cleared');
+  helpers.doKeys('n');
+  helpers.assertCursorAt(0, 11,'can\'t resume search after clearing highlighting');
+}, { value: 'match nope match \n nope Match' });
+testVim('ex_yank', function (cm, vim, helpers) {
+  var curStart = makeCursor(3, 0);
+  cm.setCursor(curStart);
+  helpers.doEx('y');
+  var register = helpers.getRegisterController().getRegister();
+  var line = cm.getLine(3);
+  eq(line + '\n', register.toString());
+});
+testVim('set_boolean', function(cm, vim, helpers) {
+  CodeMirror.Vim.defineOption('testoption', true, 'boolean');
+  // Test default value is set.
+  is(CodeMirror.Vim.getOption('testoption'));
+  try {
+    // Test fail to set to non-boolean
+    CodeMirror.Vim.setOption('testoption', '5');
+    fail();
+  } catch (expected) {}
+  // Test setOption
+  CodeMirror.Vim.setOption('testoption', false);
+  is(!CodeMirror.Vim.getOption('testoption'));
+});
+testVim('ex_set_boolean', function(cm, vim, helpers) {
+  CodeMirror.Vim.defineOption('testoption', true, 'boolean');
+  // Test default value is set.
+  is(CodeMirror.Vim.getOption('testoption'));
+  try {
+    // Test fail to set to non-boolean
+    helpers.doEx('set testoption=22');
+    fail();
+  } catch (expected) {}
+  // Test setOption
+  helpers.doEx('set notestoption');
+  is(!CodeMirror.Vim.getOption('testoption'));
+});
+testVim('set_string', function(cm, vim, helpers) {
+  CodeMirror.Vim.defineOption('testoption', 'a', 'string');
+  // Test default value is set.
+  eq('a', CodeMirror.Vim.getOption('testoption'));
+  try {
+    // Test fail to set non-string.
+    CodeMirror.Vim.setOption('testoption', true);
+    fail();
+  } catch (expected) {}
+  try {
+    // Test fail to set 'notestoption'
+    CodeMirror.Vim.setOption('notestoption', 'b');
+    fail();
+  } catch (expected) {}
+  // Test setOption
+  CodeMirror.Vim.setOption('testoption', 'c');
+  eq('c', CodeMirror.Vim.getOption('testoption'));
+});
+testVim('ex_set_string', function(cm, vim, helpers) {
+  CodeMirror.Vim.defineOption('testopt', 'a', 'string');
+  // Test default value is set.
+  eq('a', CodeMirror.Vim.getOption('testopt'));
+  try {
+    // Test fail to set 'notestopt'
+    helpers.doEx('set notestopt=b');
+    fail();
+  } catch (expected) {}
+  // Test setOption
+  helpers.doEx('set testopt=c')
+  eq('c', CodeMirror.Vim.getOption('testopt'));
+  helpers.doEx('set testopt=c')
+  eq('c', CodeMirror.Vim.getOption('testopt', cm)); //local || global
+  eq('c', CodeMirror.Vim.getOption('testopt', cm, {scope: 'local'})); // local
+  eq('c', CodeMirror.Vim.getOption('testopt', cm, {scope: 'global'})); // global
+  eq('c', CodeMirror.Vim.getOption('testopt')); // global
+  // Test setOption global
+  helpers.doEx('setg testopt=d')
+  eq('c', CodeMirror.Vim.getOption('testopt', cm));
+  eq('c', CodeMirror.Vim.getOption('testopt', cm, {scope: 'local'}));
+  eq('d', CodeMirror.Vim.getOption('testopt', cm, {scope: 'global'}));
+  eq('d', CodeMirror.Vim.getOption('testopt'));
+  // Test setOption local
+  helpers.doEx('setl testopt=e')
+  eq('e', CodeMirror.Vim.getOption('testopt', cm));
+  eq('e', CodeMirror.Vim.getOption('testopt', cm, {scope: 'local'}));
+  eq('d', CodeMirror.Vim.getOption('testopt', cm, {scope: 'global'}));
+  eq('d', CodeMirror.Vim.getOption('testopt'));
+});
+testVim('ex_set_callback', function(cm, vim, helpers) {
+  var global;
+
+  function cb(val, cm, cfg) {
+    if (val === undefined) {
+      // Getter
+      if (cm) {
+        return cm._local;
+      } else {
+        return global;
+      }
+    } else {
+      // Setter
+      if (cm) {
+        cm._local = val;
+      } else {
+        global = val;
+      }
+    }
+  }
+
+  CodeMirror.Vim.defineOption('testopt', 'a', 'string', cb);
+  // Test default value is set.
+  eq('a', CodeMirror.Vim.getOption('testopt'));
+  try {
+    // Test fail to set 'notestopt'
+    helpers.doEx('set notestopt=b');
+    fail();
+  } catch (expected) {}
+  // Test setOption (Identical to the string tests, but via callback instead)
+  helpers.doEx('set testopt=c')
+  eq('c', CodeMirror.Vim.getOption('testopt', cm)); //local || global
+  eq('c', CodeMirror.Vim.getOption('testopt', cm, {scope: 'local'})); // local
+  eq('c', CodeMirror.Vim.getOption('testopt', cm, {scope: 'global'})); // global
+  eq('c', CodeMirror.Vim.getOption('testopt')); // global
+  // Test setOption global
+  helpers.doEx('setg testopt=d')
+  eq('c', CodeMirror.Vim.getOption('testopt', cm));
+  eq('c', CodeMirror.Vim.getOption('testopt', cm, {scope: 'local'}));
+  eq('d', CodeMirror.Vim.getOption('testopt', cm, {scope: 'global'}));
+  eq('d', CodeMirror.Vim.getOption('testopt'));
+  // Test setOption local
+  helpers.doEx('setl testopt=e')
+  eq('e', CodeMirror.Vim.getOption('testopt', cm));
+  eq('e', CodeMirror.Vim.getOption('testopt', cm, {scope: 'local'}));
+  eq('d', CodeMirror.Vim.getOption('testopt', cm, {scope: 'global'}));
+  eq('d', CodeMirror.Vim.getOption('testopt'));
+})
+testVim('ex_set_filetype', function(cm, vim, helpers) {
+  CodeMirror.defineMode('test_mode', function() {
+    return {token: function(stream) {
+      stream.match(/^\s+|^\S+/);
+    }};
+  });
+  CodeMirror.defineMode('test_mode_2', function() {
+    return {token: function(stream) {
+      stream.match(/^\s+|^\S+/);
+    }};
+  });
+  // Test mode is set.
+  helpers.doEx('set filetype=test_mode');
+  eq('test_mode', cm.getMode().name);
+  // Test 'ft' alias also sets mode.
+  helpers.doEx('set ft=test_mode_2');
+  eq('test_mode_2', cm.getMode().name);
+});
+testVim('ex_set_filetype_null', function(cm, vim, helpers) {
+  CodeMirror.defineMode('test_mode', function() {
+    return {token: function(stream) {
+      stream.match(/^\s+|^\S+/);
+    }};
+  });
+  cm.setOption('mode', 'test_mode');
+  // Test mode is set to null.
+  helpers.doEx('set filetype=');
+  eq('null', cm.getMode().name);
+});
+// TODO: Reset key maps after each test.
+testVim('ex_map_key2key', function(cm, vim, helpers) {
+  helpers.doEx('map a x');
+  helpers.doKeys('a');
+  helpers.assertCursorAt(0, 0);
+  eq('bc', cm.getValue());
+}, { value: 'abc' });
+testVim('ex_unmap_key2key', function(cm, vim, helpers) {
+  helpers.doEx('unmap a');
+  helpers.doKeys('a');
+  eq('vim-insert', cm.getOption('keyMap'));
+}, { value: 'abc' });
+testVim('ex_unmap_key2key_does_not_remove_default', function(cm, vim, helpers) {
+  try {
+    helpers.doEx('unmap a');
+    fail();
+  } catch (expected) {}
+  helpers.doKeys('a');
+  eq('vim-insert', cm.getOption('keyMap'));
+}, { value: 'abc' });
+testVim('ex_map_key2key_to_colon', function(cm, vim, helpers) {
+  helpers.doEx('map ; :');
+  var dialogOpened = false;
+  cm.openDialog = function() {
+    dialogOpened = true;
+  }
+  helpers.doKeys(';');
+  eq(dialogOpened, true);
+});
+testVim('ex_map_ex2key:', function(cm, vim, helpers) {
+  helpers.doEx('map :del x');
+  helpers.doEx('del');
+  helpers.assertCursorAt(0, 0);
+  eq('bc', cm.getValue());
+}, { value: 'abc' });
+testVim('ex_map_ex2ex', function(cm, vim, helpers) {
+  helpers.doEx('map :del :w');
+  var tmp = CodeMirror.commands.save;
+  var written = false;
+  var actualCm;
+  CodeMirror.commands.save = function(cm) {
+    written = true;
+    actualCm = cm;
+  };
+  helpers.doEx('del');
+  CodeMirror.commands.save = tmp;
+  eq(written, true);
+  eq(actualCm, cm);
+});
+testVim('ex_map_key2ex', function(cm, vim, helpers) {
+  helpers.doEx('map a :w');
+  var tmp = CodeMirror.commands.save;
+  var written = false;
+  var actualCm;
+  CodeMirror.commands.save = function(cm) {
+    written = true;
+    actualCm = cm;
+  };
+  helpers.doKeys('a');
+  CodeMirror.commands.save = tmp;
+  eq(written, true);
+  eq(actualCm, cm);
+});
+testVim('ex_map_key2key_visual_api', function(cm, vim, helpers) {
+  CodeMirror.Vim.map('b', ':w', 'visual');
+  var tmp = CodeMirror.commands.save;
+  var written = false;
+  var actualCm;
+  CodeMirror.commands.save = function(cm) {
+    written = true;
+    actualCm = cm;
+  };
+  // Mapping should not work in normal mode.
+  helpers.doKeys('b');
+  eq(written, false);
+  // Mapping should work in visual mode.
+  helpers.doKeys('v', 'b');
+  eq(written, true);
+  eq(actualCm, cm);
+
+  CodeMirror.commands.save = tmp;
+});
+testVim('ex_imap', function(cm, vim, helpers) {
+  CodeMirror.Vim.map('jk', '', 'insert');
+  helpers.doKeys('i');
+  is(vim.insertMode);
+  helpers.doKeys('j', 'k');
+  is(!vim.insertMode);
+  cm.setCursor(0, 1);
+  CodeMirror.Vim.map('jj', '', 'insert');
+  helpers.doKeys('', '2', 'j', 'l', 'c');
+  var replacement = fillArray('fo', 3);
+  cm.replaceSelections(replacement);
+  eq('1fo4\n5fo8\nafodefg', cm.getValue());
+  helpers.doKeys('j', 'j');
+  cm.setCursor(0, 0);
+  helpers.doKeys('.');
+  eq('foo4\nfoo8\nfoodefg', cm.getValue());
+}, { value: '1234\n5678\nabcdefg' });
+testVim('ex_unmap_api', function(cm, vim, helpers) {
+  CodeMirror.Vim.map('', 'gg', 'normal');
+  is(CodeMirror.Vim.handleKey(cm, "", "normal"), "Alt-X key is mapped");
+  CodeMirror.Vim.unmap("", "normal");
+  is(!CodeMirror.Vim.handleKey(cm, "", "normal"), "Alt-X key is unmapped");
+});
+
+// Testing registration of functions as ex-commands and mapping to -keys
+testVim('ex_api_test', function(cm, vim, helpers) {
+  var res=false;
+  var val='from';
+  CodeMirror.Vim.defineEx('extest','ext',function(cm,params){
+    if(params.args)val=params.args[0];
+    else res=true;
+  });
+  helpers.doEx(':ext to');
+  eq(val,'to','Defining ex-command failed');
+  CodeMirror.Vim.map('',':ext');
+  helpers.doKeys('','');
+  is(res,'Mapping to key failed');
+});
+// For now, this test needs to be last because it messes up : for future tests.
+testVim('ex_map_key2key_from_colon', function(cm, vim, helpers) {
+  helpers.doEx('map : x');
+  helpers.doKeys(':');
+  helpers.assertCursorAt(0, 0);
+  eq('bc', cm.getValue());
+}, { value: 'abc' });
+
+// Test event handlers
+testVim('beforeSelectionChange', function(cm, vim, helpers) {
+  cm.setCursor(0, 100);
+  eqCursorPos(cm.getCursor('head'), cm.getCursor('anchor'));
+}, { value: 'abc' });
+
+
diff --git a/public/codemirror/theme/3024-day.css b/public/codemirror/theme/3024-day.css
new file mode 100644
index 000000000..713265530
--- /dev/null
+++ b/public/codemirror/theme/3024-day.css
@@ -0,0 +1,41 @@
+/*
+
+    Name:       3024 day
+    Author:     Jan T. Sott (http://github.com/idleberg)
+
+    CodeMirror template by Jan T. Sott (https://github.com/idleberg/base16-codemirror)
+    Original Base16 color scheme by Chris Kempson (https://github.com/chriskempson/base16)
+
+*/
+
+.cm-s-3024-day.CodeMirror { background: #f7f7f7; color: #3a3432; }
+.cm-s-3024-day div.CodeMirror-selected { background: #d6d5d4; }
+
+.cm-s-3024-day .CodeMirror-line::selection, .cm-s-3024-day .CodeMirror-line > span::selection, .cm-s-3024-day .CodeMirror-line > span > span::selection { background: #d6d5d4; }
+.cm-s-3024-day .CodeMirror-line::-moz-selection, .cm-s-3024-day .CodeMirror-line > span::-moz-selection, .cm-s-3024-day .CodeMirror-line > span > span::selection { background: #d9d9d9; }
+
+.cm-s-3024-day .CodeMirror-gutters { background: #f7f7f7; border-right: 0px; }
+.cm-s-3024-day .CodeMirror-guttermarker { color: #db2d20; }
+.cm-s-3024-day .CodeMirror-guttermarker-subtle { color: #807d7c; }
+.cm-s-3024-day .CodeMirror-linenumber { color: #807d7c; }
+
+.cm-s-3024-day .CodeMirror-cursor { border-left: 1px solid #5c5855; }
+
+.cm-s-3024-day span.cm-comment { color: #cdab53; }
+.cm-s-3024-day span.cm-atom { color: #a16a94; }
+.cm-s-3024-day span.cm-number { color: #a16a94; }
+
+.cm-s-3024-day span.cm-property, .cm-s-3024-day span.cm-attribute { color: #01a252; }
+.cm-s-3024-day span.cm-keyword { color: #db2d20; }
+.cm-s-3024-day span.cm-string { color: #fded02; }
+
+.cm-s-3024-day span.cm-variable { color: #01a252; }
+.cm-s-3024-day span.cm-variable-2 { color: #01a0e4; }
+.cm-s-3024-day span.cm-def { color: #e8bbd0; }
+.cm-s-3024-day span.cm-bracket { color: #3a3432; }
+.cm-s-3024-day span.cm-tag { color: #db2d20; }
+.cm-s-3024-day span.cm-link { color: #a16a94; }
+.cm-s-3024-day span.cm-error { background: #db2d20; color: #5c5855; }
+
+.cm-s-3024-day .CodeMirror-activeline-background { background: #e8f2ff; }
+.cm-s-3024-day .CodeMirror-matchingbracket { text-decoration: underline; color: #a16a94 !important; }
diff --git a/public/codemirror/theme/3024-night.css b/public/codemirror/theme/3024-night.css
new file mode 100644
index 000000000..adc5900ad
--- /dev/null
+++ b/public/codemirror/theme/3024-night.css
@@ -0,0 +1,39 @@
+/*
+
+    Name:       3024 night
+    Author:     Jan T. Sott (http://github.com/idleberg)
+
+    CodeMirror template by Jan T. Sott (https://github.com/idleberg/base16-codemirror)
+    Original Base16 color scheme by Chris Kempson (https://github.com/chriskempson/base16)
+
+*/
+
+.cm-s-3024-night.CodeMirror { background: #090300; color: #d6d5d4; }
+.cm-s-3024-night div.CodeMirror-selected { background: #3a3432; }
+.cm-s-3024-night .CodeMirror-line::selection, .cm-s-3024-night .CodeMirror-line > span::selection, .cm-s-3024-night .CodeMirror-line > span > span::selection { background: rgba(58, 52, 50, .99); }
+.cm-s-3024-night .CodeMirror-line::-moz-selection, .cm-s-3024-night .CodeMirror-line > span::-moz-selection, .cm-s-3024-night .CodeMirror-line > span > span::-moz-selection { background: rgba(58, 52, 50, .99); }
+.cm-s-3024-night .CodeMirror-gutters { background: #090300; border-right: 0px; }
+.cm-s-3024-night .CodeMirror-guttermarker { color: #db2d20; }
+.cm-s-3024-night .CodeMirror-guttermarker-subtle { color: #5c5855; }
+.cm-s-3024-night .CodeMirror-linenumber { color: #5c5855; }
+
+.cm-s-3024-night .CodeMirror-cursor { border-left: 1px solid #807d7c; }
+
+.cm-s-3024-night span.cm-comment { color: #cdab53; }
+.cm-s-3024-night span.cm-atom { color: #a16a94; }
+.cm-s-3024-night span.cm-number { color: #a16a94; }
+
+.cm-s-3024-night span.cm-property, .cm-s-3024-night span.cm-attribute { color: #01a252; }
+.cm-s-3024-night span.cm-keyword { color: #db2d20; }
+.cm-s-3024-night span.cm-string { color: #fded02; }
+
+.cm-s-3024-night span.cm-variable { color: #01a252; }
+.cm-s-3024-night span.cm-variable-2 { color: #01a0e4; }
+.cm-s-3024-night span.cm-def { color: #e8bbd0; }
+.cm-s-3024-night span.cm-bracket { color: #d6d5d4; }
+.cm-s-3024-night span.cm-tag { color: #db2d20; }
+.cm-s-3024-night span.cm-link { color: #a16a94; }
+.cm-s-3024-night span.cm-error { background: #db2d20; color: #807d7c; }
+
+.cm-s-3024-night .CodeMirror-activeline-background { background: #2F2F2F; }
+.cm-s-3024-night .CodeMirror-matchingbracket { text-decoration: underline; color: white !important; }
diff --git a/public/codemirror/theme/abcdef.css b/public/codemirror/theme/abcdef.css
new file mode 100644
index 000000000..7f9d78870
--- /dev/null
+++ b/public/codemirror/theme/abcdef.css
@@ -0,0 +1,32 @@
+.cm-s-abcdef.CodeMirror { background: #0f0f0f; color: #defdef; }
+.cm-s-abcdef div.CodeMirror-selected { background: #515151; }
+.cm-s-abcdef .CodeMirror-line::selection, .cm-s-abcdef .CodeMirror-line > span::selection, .cm-s-abcdef .CodeMirror-line > span > span::selection { background: rgba(56, 56, 56, 0.99); }
+.cm-s-abcdef .CodeMirror-line::-moz-selection, .cm-s-abcdef .CodeMirror-line > span::-moz-selection, .cm-s-abcdef .CodeMirror-line > span > span::-moz-selection { background: rgba(56, 56, 56, 0.99); }
+.cm-s-abcdef .CodeMirror-gutters { background: #555; border-right: 2px solid #314151; }
+.cm-s-abcdef .CodeMirror-guttermarker { color: #222; }
+.cm-s-abcdef .CodeMirror-guttermarker-subtle { color: azure; }
+.cm-s-abcdef .CodeMirror-linenumber { color: #FFFFFF; }
+.cm-s-abcdef .CodeMirror-cursor { border-left: 1px solid #00FF00; }
+
+.cm-s-abcdef span.cm-keyword { color: darkgoldenrod; font-weight: bold; }
+.cm-s-abcdef span.cm-atom { color: #77F; }
+.cm-s-abcdef span.cm-number { color: violet; }
+.cm-s-abcdef span.cm-def { color: #fffabc; }
+.cm-s-abcdef span.cm-variable { color: #abcdef; }
+.cm-s-abcdef span.cm-variable-2 { color: #cacbcc; }
+.cm-s-abcdef span.cm-variable-3 { color: #def; }
+.cm-s-abcdef span.cm-property { color: #fedcba; }
+.cm-s-abcdef span.cm-operator { color: #ff0; }
+.cm-s-abcdef span.cm-comment { color: #7a7b7c; font-style: italic;}
+.cm-s-abcdef span.cm-string { color: #2b4; }
+.cm-s-abcdef span.cm-meta { color: #C9F; }
+.cm-s-abcdef span.cm-qualifier { color: #FFF700; }
+.cm-s-abcdef span.cm-builtin { color: #30aabc; }
+.cm-s-abcdef span.cm-bracket { color: #8a8a8a; }
+.cm-s-abcdef span.cm-tag { color: #FFDD44; }
+.cm-s-abcdef span.cm-attribute { color: #DDFF00; }
+.cm-s-abcdef span.cm-error { color: #FF0000; }
+.cm-s-abcdef span.cm-header { color: aquamarine; font-weight: bold; }
+.cm-s-abcdef span.cm-link { color: blueviolet; }
+
+.cm-s-abcdef .CodeMirror-activeline-background { background: #314151; }
diff --git a/public/codemirror/theme/ambiance-mobile.css b/public/codemirror/theme/ambiance-mobile.css
new file mode 100644
index 000000000..88d332e1a
--- /dev/null
+++ b/public/codemirror/theme/ambiance-mobile.css
@@ -0,0 +1,5 @@
+.cm-s-ambiance.CodeMirror {
+  -webkit-box-shadow: none;
+  -moz-box-shadow: none;
+  box-shadow: none;
+}
diff --git a/public/codemirror/theme/ambiance.css b/public/codemirror/theme/ambiance.css
new file mode 100644
index 000000000..bce344649
--- /dev/null
+++ b/public/codemirror/theme/ambiance.css
@@ -0,0 +1,74 @@
+/* ambiance theme for codemirror */
+
+/* Color scheme */
+
+.cm-s-ambiance .cm-header { color: blue; }
+.cm-s-ambiance .cm-quote { color: #24C2C7; }
+
+.cm-s-ambiance .cm-keyword { color: #cda869; }
+.cm-s-ambiance .cm-atom { color: #CF7EA9; }
+.cm-s-ambiance .cm-number { color: #78CF8A; }
+.cm-s-ambiance .cm-def { color: #aac6e3; }
+.cm-s-ambiance .cm-variable { color: #ffb795; }
+.cm-s-ambiance .cm-variable-2 { color: #eed1b3; }
+.cm-s-ambiance .cm-variable-3 { color: #faded3; }
+.cm-s-ambiance .cm-property { color: #eed1b3; }
+.cm-s-ambiance .cm-operator { color: #fa8d6a; }
+.cm-s-ambiance .cm-comment { color: #555; font-style:italic; }
+.cm-s-ambiance .cm-string { color: #8f9d6a; }
+.cm-s-ambiance .cm-string-2 { color: #9d937c; }
+.cm-s-ambiance .cm-meta { color: #D2A8A1; }
+.cm-s-ambiance .cm-qualifier { color: yellow; }
+.cm-s-ambiance .cm-builtin { color: #9999cc; }
+.cm-s-ambiance .cm-bracket { color: #24C2C7; }
+.cm-s-ambiance .cm-tag { color: #fee4ff; }
+.cm-s-ambiance .cm-attribute { color: #9B859D; }
+.cm-s-ambiance .cm-hr { color: pink; }
+.cm-s-ambiance .cm-link { color: #F4C20B; }
+.cm-s-ambiance .cm-special { color: #FF9D00; }
+.cm-s-ambiance .cm-error { color: #AF2018; }
+
+.cm-s-ambiance .CodeMirror-matchingbracket { color: #0f0; }
+.cm-s-ambiance .CodeMirror-nonmatchingbracket { color: #f22; }
+
+.cm-s-ambiance div.CodeMirror-selected { background: rgba(255, 255, 255, 0.15); }
+.cm-s-ambiance.CodeMirror-focused div.CodeMirror-selected { background: rgba(255, 255, 255, 0.10); }
+.cm-s-ambiance .CodeMirror-line::selection, .cm-s-ambiance .CodeMirror-line > span::selection, .cm-s-ambiance .CodeMirror-line > span > span::selection { background: rgba(255, 255, 255, 0.10); }
+.cm-s-ambiance .CodeMirror-line::-moz-selection, .cm-s-ambiance .CodeMirror-line > span::-moz-selection, .cm-s-ambiance .CodeMirror-line > span > span::-moz-selection { background: rgba(255, 255, 255, 0.10); }
+
+/* Editor styling */
+
+.cm-s-ambiance.CodeMirror {
+  line-height: 1.40em;
+  color: #E6E1DC;
+  background-color: #202020;
+  -webkit-box-shadow: inset 0 0 10px black;
+  -moz-box-shadow: inset 0 0 10px black;
+  box-shadow: inset 0 0 10px black;
+}
+
+.cm-s-ambiance .CodeMirror-gutters {
+  background: #3D3D3D;
+  border-right: 1px solid #4D4D4D;
+  box-shadow: 0 10px 20px black;
+}
+
+.cm-s-ambiance .CodeMirror-linenumber {
+  text-shadow: 0px 1px 1px #4d4d4d;
+  color: #111;
+  padding: 0 5px;
+}
+
+.cm-s-ambiance .CodeMirror-guttermarker { color: #aaa; }
+.cm-s-ambiance .CodeMirror-guttermarker-subtle { color: #111; }
+
+.cm-s-ambiance .CodeMirror-cursor { border-left: 1px solid #7991E8; }
+
+.cm-s-ambiance .CodeMirror-activeline-background {
+  background: none repeat scroll 0% 0% rgba(255, 255, 255, 0.031);
+}
+
+.cm-s-ambiance.CodeMirror,
+.cm-s-ambiance .CodeMirror-gutters {
+  background-image: 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");
+}
diff --git a/public/codemirror/theme/base16-dark.css b/public/codemirror/theme/base16-dark.css
new file mode 100644
index 000000000..026a81689
--- /dev/null
+++ b/public/codemirror/theme/base16-dark.css
@@ -0,0 +1,38 @@
+/*
+
+    Name:       Base16 Default Dark
+    Author:     Chris Kempson (http://chriskempson.com)
+
+    CodeMirror template by Jan T. Sott (https://github.com/idleberg/base16-codemirror)
+    Original Base16 color scheme by Chris Kempson (https://github.com/chriskempson/base16)
+
+*/
+
+.cm-s-base16-dark.CodeMirror { background: #151515; color: #e0e0e0; }
+.cm-s-base16-dark div.CodeMirror-selected { background: #303030; }
+.cm-s-base16-dark .CodeMirror-line::selection, .cm-s-base16-dark .CodeMirror-line > span::selection, .cm-s-base16-dark .CodeMirror-line > span > span::selection { background: rgba(48, 48, 48, .99); }
+.cm-s-base16-dark .CodeMirror-line::-moz-selection, .cm-s-base16-dark .CodeMirror-line > span::-moz-selection, .cm-s-base16-dark .CodeMirror-line > span > span::-moz-selection { background: rgba(48, 48, 48, .99); }
+.cm-s-base16-dark .CodeMirror-gutters { background: #151515; border-right: 0px; }
+.cm-s-base16-dark .CodeMirror-guttermarker { color: #ac4142; }
+.cm-s-base16-dark .CodeMirror-guttermarker-subtle { color: #505050; }
+.cm-s-base16-dark .CodeMirror-linenumber { color: #505050; }
+.cm-s-base16-dark .CodeMirror-cursor { border-left: 1px solid #b0b0b0; }
+
+.cm-s-base16-dark span.cm-comment { color: #8f5536; }
+.cm-s-base16-dark span.cm-atom { color: #aa759f; }
+.cm-s-base16-dark span.cm-number { color: #aa759f; }
+
+.cm-s-base16-dark span.cm-property, .cm-s-base16-dark span.cm-attribute { color: #90a959; }
+.cm-s-base16-dark span.cm-keyword { color: #ac4142; }
+.cm-s-base16-dark span.cm-string { color: #f4bf75; }
+
+.cm-s-base16-dark span.cm-variable { color: #90a959; }
+.cm-s-base16-dark span.cm-variable-2 { color: #6a9fb5; }
+.cm-s-base16-dark span.cm-def { color: #d28445; }
+.cm-s-base16-dark span.cm-bracket { color: #e0e0e0; }
+.cm-s-base16-dark span.cm-tag { color: #ac4142; }
+.cm-s-base16-dark span.cm-link { color: #aa759f; }
+.cm-s-base16-dark span.cm-error { background: #ac4142; color: #b0b0b0; }
+
+.cm-s-base16-dark .CodeMirror-activeline-background { background: #202020; }
+.cm-s-base16-dark .CodeMirror-matchingbracket { text-decoration: underline; color: white !important; }
diff --git a/public/codemirror/theme/base16-light.css b/public/codemirror/theme/base16-light.css
new file mode 100644
index 000000000..474e0ca9d
--- /dev/null
+++ b/public/codemirror/theme/base16-light.css
@@ -0,0 +1,38 @@
+/*
+
+    Name:       Base16 Default Light
+    Author:     Chris Kempson (http://chriskempson.com)
+
+    CodeMirror template by Jan T. Sott (https://github.com/idleberg/base16-codemirror)
+    Original Base16 color scheme by Chris Kempson (https://github.com/chriskempson/base16)
+
+*/
+
+.cm-s-base16-light.CodeMirror { background: #f5f5f5; color: #202020; }
+.cm-s-base16-light div.CodeMirror-selected { background: #e0e0e0; }
+.cm-s-base16-light .CodeMirror-line::selection, .cm-s-base16-light .CodeMirror-line > span::selection, .cm-s-base16-light .CodeMirror-line > span > span::selection { background: #e0e0e0; }
+.cm-s-base16-light .CodeMirror-line::-moz-selection, .cm-s-base16-light .CodeMirror-line > span::-moz-selection, .cm-s-base16-light .CodeMirror-line > span > span::-moz-selection { background: #e0e0e0; }
+.cm-s-base16-light .CodeMirror-gutters { background: #f5f5f5; border-right: 0px; }
+.cm-s-base16-light .CodeMirror-guttermarker { color: #ac4142; }
+.cm-s-base16-light .CodeMirror-guttermarker-subtle { color: #b0b0b0; }
+.cm-s-base16-light .CodeMirror-linenumber { color: #b0b0b0; }
+.cm-s-base16-light .CodeMirror-cursor { border-left: 1px solid #505050; }
+
+.cm-s-base16-light span.cm-comment { color: #8f5536; }
+.cm-s-base16-light span.cm-atom { color: #aa759f; }
+.cm-s-base16-light span.cm-number { color: #aa759f; }
+
+.cm-s-base16-light span.cm-property, .cm-s-base16-light span.cm-attribute { color: #90a959; }
+.cm-s-base16-light span.cm-keyword { color: #ac4142; }
+.cm-s-base16-light span.cm-string { color: #f4bf75; }
+
+.cm-s-base16-light span.cm-variable { color: #90a959; }
+.cm-s-base16-light span.cm-variable-2 { color: #6a9fb5; }
+.cm-s-base16-light span.cm-def { color: #d28445; }
+.cm-s-base16-light span.cm-bracket { color: #202020; }
+.cm-s-base16-light span.cm-tag { color: #ac4142; }
+.cm-s-base16-light span.cm-link { color: #aa759f; }
+.cm-s-base16-light span.cm-error { background: #ac4142; color: #505050; }
+
+.cm-s-base16-light .CodeMirror-activeline-background { background: #DDDCDC; }
+.cm-s-base16-light .CodeMirror-matchingbracket { text-decoration: underline; color: white !important; }
diff --git a/public/codemirror/theme/bespin.css b/public/codemirror/theme/bespin.css
new file mode 100644
index 000000000..60913ba93
--- /dev/null
+++ b/public/codemirror/theme/bespin.css
@@ -0,0 +1,34 @@
+/*
+
+    Name:       Bespin
+    Author:     Mozilla / Jan T. Sott
+
+    CodeMirror template by Jan T. Sott (https://github.com/idleberg/base16-codemirror)
+    Original Base16 color scheme by Chris Kempson (https://github.com/chriskempson/base16)
+
+*/
+
+.cm-s-bespin.CodeMirror {background: #28211c; color: #9d9b97;}
+.cm-s-bespin div.CodeMirror-selected {background: #36312e !important;}
+.cm-s-bespin .CodeMirror-gutters {background: #28211c; border-right: 0px;}
+.cm-s-bespin .CodeMirror-linenumber {color: #666666;}
+.cm-s-bespin .CodeMirror-cursor {border-left: 1px solid #797977 !important;}
+
+.cm-s-bespin span.cm-comment {color: #937121;}
+.cm-s-bespin span.cm-atom {color: #9b859d;}
+.cm-s-bespin span.cm-number {color: #9b859d;}
+
+.cm-s-bespin span.cm-property, .cm-s-bespin span.cm-attribute {color: #54be0d;}
+.cm-s-bespin span.cm-keyword {color: #cf6a4c;}
+.cm-s-bespin span.cm-string {color: #f9ee98;}
+
+.cm-s-bespin span.cm-variable {color: #54be0d;}
+.cm-s-bespin span.cm-variable-2 {color: #5ea6ea;}
+.cm-s-bespin span.cm-def {color: #cf7d34;}
+.cm-s-bespin span.cm-error {background: #cf6a4c; color: #797977;}
+.cm-s-bespin span.cm-bracket {color: #9d9b97;}
+.cm-s-bespin span.cm-tag {color: #cf6a4c;}
+.cm-s-bespin span.cm-link {color: #9b859d;}
+
+.cm-s-bespin .CodeMirror-matchingbracket { text-decoration: underline; color: white !important;}
+.cm-s-bespin .CodeMirror-activeline-background { background: #404040; }
diff --git a/public/codemirror/theme/blackboard.css b/public/codemirror/theme/blackboard.css
new file mode 100644
index 000000000..b6eaedb18
--- /dev/null
+++ b/public/codemirror/theme/blackboard.css
@@ -0,0 +1,32 @@
+/* Port of TextMate's Blackboard theme */
+
+.cm-s-blackboard.CodeMirror { background: #0C1021; color: #F8F8F8; }
+.cm-s-blackboard div.CodeMirror-selected { background: #253B76; }
+.cm-s-blackboard .CodeMirror-line::selection, .cm-s-blackboard .CodeMirror-line > span::selection, .cm-s-blackboard .CodeMirror-line > span > span::selection { background: rgba(37, 59, 118, .99); }
+.cm-s-blackboard .CodeMirror-line::-moz-selection, .cm-s-blackboard .CodeMirror-line > span::-moz-selection, .cm-s-blackboard .CodeMirror-line > span > span::-moz-selection { background: rgba(37, 59, 118, .99); }
+.cm-s-blackboard .CodeMirror-gutters { background: #0C1021; border-right: 0; }
+.cm-s-blackboard .CodeMirror-guttermarker { color: #FBDE2D; }
+.cm-s-blackboard .CodeMirror-guttermarker-subtle { color: #888; }
+.cm-s-blackboard .CodeMirror-linenumber { color: #888; }
+.cm-s-blackboard .CodeMirror-cursor { border-left: 1px solid #A7A7A7; }
+
+.cm-s-blackboard .cm-keyword { color: #FBDE2D; }
+.cm-s-blackboard .cm-atom { color: #D8FA3C; }
+.cm-s-blackboard .cm-number { color: #D8FA3C; }
+.cm-s-blackboard .cm-def { color: #8DA6CE; }
+.cm-s-blackboard .cm-variable { color: #FF6400; }
+.cm-s-blackboard .cm-operator { color: #FBDE2D; }
+.cm-s-blackboard .cm-comment { color: #AEAEAE; }
+.cm-s-blackboard .cm-string { color: #61CE3C; }
+.cm-s-blackboard .cm-string-2 { color: #61CE3C; }
+.cm-s-blackboard .cm-meta { color: #D8FA3C; }
+.cm-s-blackboard .cm-builtin { color: #8DA6CE; }
+.cm-s-blackboard .cm-tag { color: #8DA6CE; }
+.cm-s-blackboard .cm-attribute { color: #8DA6CE; }
+.cm-s-blackboard .cm-header { color: #FF6400; }
+.cm-s-blackboard .cm-hr { color: #AEAEAE; }
+.cm-s-blackboard .cm-link { color: #8DA6CE; }
+.cm-s-blackboard .cm-error { background: #9D1E15; color: #F8F8F8; }
+
+.cm-s-blackboard .CodeMirror-activeline-background { background: #3C3636; }
+.cm-s-blackboard .CodeMirror-matchingbracket { outline:1px solid grey;color:white !important; }
diff --git a/public/codemirror/theme/cobalt.css b/public/codemirror/theme/cobalt.css
new file mode 100644
index 000000000..d88223ed8
--- /dev/null
+++ b/public/codemirror/theme/cobalt.css
@@ -0,0 +1,25 @@
+.cm-s-cobalt.CodeMirror { background: #002240; color: white; }
+.cm-s-cobalt div.CodeMirror-selected { background: #b36539; }
+.cm-s-cobalt .CodeMirror-line::selection, .cm-s-cobalt .CodeMirror-line > span::selection, .cm-s-cobalt .CodeMirror-line > span > span::selection { background: rgba(179, 101, 57, .99); }
+.cm-s-cobalt .CodeMirror-line::-moz-selection, .cm-s-cobalt .CodeMirror-line > span::-moz-selection, .cm-s-cobalt .CodeMirror-line > span > span::-moz-selection { background: rgba(179, 101, 57, .99); }
+.cm-s-cobalt .CodeMirror-gutters { background: #002240; border-right: 1px solid #aaa; }
+.cm-s-cobalt .CodeMirror-guttermarker { color: #ffee80; }
+.cm-s-cobalt .CodeMirror-guttermarker-subtle { color: #d0d0d0; }
+.cm-s-cobalt .CodeMirror-linenumber { color: #d0d0d0; }
+.cm-s-cobalt .CodeMirror-cursor { border-left: 1px solid white; }
+
+.cm-s-cobalt span.cm-comment { color: #08f; }
+.cm-s-cobalt span.cm-atom { color: #845dc4; }
+.cm-s-cobalt span.cm-number, .cm-s-cobalt span.cm-attribute { color: #ff80e1; }
+.cm-s-cobalt span.cm-keyword { color: #ffee80; }
+.cm-s-cobalt span.cm-string { color: #3ad900; }
+.cm-s-cobalt span.cm-meta { color: #ff9d00; }
+.cm-s-cobalt span.cm-variable-2, .cm-s-cobalt span.cm-tag { color: #9effff; }
+.cm-s-cobalt span.cm-variable-3, .cm-s-cobalt span.cm-def { color: white; }
+.cm-s-cobalt span.cm-bracket { color: #d8d8d8; }
+.cm-s-cobalt span.cm-builtin, .cm-s-cobalt span.cm-special { color: #ff9e59; }
+.cm-s-cobalt span.cm-link { color: #845dc4; }
+.cm-s-cobalt span.cm-error { color: #9d1e15; }
+
+.cm-s-cobalt .CodeMirror-activeline-background { background: #002D57; }
+.cm-s-cobalt .CodeMirror-matchingbracket { outline:1px solid grey;color:white !important; }
diff --git a/public/codemirror/theme/colorforth.css b/public/codemirror/theme/colorforth.css
new file mode 100644
index 000000000..606899f30
--- /dev/null
+++ b/public/codemirror/theme/colorforth.css
@@ -0,0 +1,33 @@
+.cm-s-colorforth.CodeMirror { background: #000000; color: #f8f8f8; }
+.cm-s-colorforth .CodeMirror-gutters { background: #0a001f; border-right: 1px solid #aaa; }
+.cm-s-colorforth .CodeMirror-guttermarker { color: #FFBD40; }
+.cm-s-colorforth .CodeMirror-guttermarker-subtle { color: #78846f; }
+.cm-s-colorforth .CodeMirror-linenumber { color: #bababa; }
+.cm-s-colorforth .CodeMirror-cursor { border-left: 1px solid white; }
+
+.cm-s-colorforth span.cm-comment     { color: #ededed; }
+.cm-s-colorforth span.cm-def         { color: #ff1c1c; font-weight:bold; }
+.cm-s-colorforth span.cm-keyword     { color: #ffd900; }
+.cm-s-colorforth span.cm-builtin     { color: #00d95a; }
+.cm-s-colorforth span.cm-variable    { color: #73ff00; }
+.cm-s-colorforth span.cm-string      { color: #007bff; }
+.cm-s-colorforth span.cm-number      { color: #00c4ff; }
+.cm-s-colorforth span.cm-atom        { color: #606060; }
+
+.cm-s-colorforth span.cm-variable-2  { color: #EEE; }
+.cm-s-colorforth span.cm-variable-3  { color: #DDD; }
+.cm-s-colorforth span.cm-property    {}
+.cm-s-colorforth span.cm-operator    {}
+
+.cm-s-colorforth span.cm-meta        { color: yellow; }
+.cm-s-colorforth span.cm-qualifier   { color: #FFF700; }
+.cm-s-colorforth span.cm-bracket     { color: #cc7; }
+.cm-s-colorforth span.cm-tag         { color: #FFBD40; }
+.cm-s-colorforth span.cm-attribute   { color: #FFF700; }
+.cm-s-colorforth span.cm-error       { color: #f00; }
+
+.cm-s-colorforth div.CodeMirror-selected { background: #333d53; }
+
+.cm-s-colorforth span.cm-compilation { background: rgba(255, 255, 255, 0.12); }
+
+.cm-s-colorforth .CodeMirror-activeline-background { background: #253540; }
diff --git a/public/codemirror/theme/dracula.css b/public/codemirror/theme/dracula.css
new file mode 100644
index 000000000..53a660b52
--- /dev/null
+++ b/public/codemirror/theme/dracula.css
@@ -0,0 +1,40 @@
+/*
+
+    Name:       dracula
+    Author:     Michael Kaminsky (http://github.com/mkaminsky11)
+
+    Original dracula color scheme by Zeno Rocha (https://github.com/zenorocha/dracula-theme)
+
+*/
+
+
+.cm-s-dracula.CodeMirror, .cm-s-dracula .CodeMirror-gutters {
+  background-color: #282a36 !important;
+  color: #f8f8f2 !important;
+  border: none;
+}
+.cm-s-dracula .CodeMirror-gutters { color: #282a36; }
+.cm-s-dracula .CodeMirror-cursor { border-left: solid thin #f8f8f0; }
+.cm-s-dracula .CodeMirror-linenumber { color: #6D8A88; }
+.cm-s-dracula .CodeMirror-selected { background: rgba(255, 255, 255, 0.10); }
+.cm-s-dracula .CodeMirror-line::selection, .cm-s-dracula .CodeMirror-line > span::selection, .cm-s-dracula .CodeMirror-line > span > span::selection { background: rgba(255, 255, 255, 0.10); }
+.cm-s-dracula .CodeMirror-line::-moz-selection, .cm-s-dracula .CodeMirror-line > span::-moz-selection, .cm-s-dracula .CodeMirror-line > span > span::-moz-selection { background: rgba(255, 255, 255, 0.10); }
+.cm-s-dracula span.cm-comment { color: #6272a4; }
+.cm-s-dracula span.cm-string, .cm-s-dracula span.cm-string-2 { color: #f1fa8c; }
+.cm-s-dracula span.cm-number { color: #bd93f9; }
+.cm-s-dracula span.cm-variable { color: #50fa7b; }
+.cm-s-dracula span.cm-variable-2 { color: white; }
+.cm-s-dracula span.cm-def { color: #50fa7b; }
+.cm-s-dracula span.cm-operator { color: #ff79c6; }
+.cm-s-dracula span.cm-keyword { color: #ff79c6; }
+.cm-s-dracula span.cm-atom { color: #bd93f9; }
+.cm-s-dracula span.cm-meta { color: #f8f8f2; }
+.cm-s-dracula span.cm-tag { color: #ff79c6; }
+.cm-s-dracula span.cm-attribute { color: #50fa7b; }
+.cm-s-dracula span.cm-qualifier { color: #50fa7b; }
+.cm-s-dracula span.cm-property { color: #66d9ef; }
+.cm-s-dracula span.cm-builtin { color: #50fa7b; }
+.cm-s-dracula span.cm-variable-3 { color: #ffb86c; }
+
+.cm-s-dracula .CodeMirror-activeline-background { background: rgba(255,255,255,0.1); }
+.cm-s-dracula .CodeMirror-matchingbracket { text-decoration: underline; color: white !important; }
diff --git a/public/codemirror/theme/duotone-dark.css b/public/codemirror/theme/duotone-dark.css
new file mode 100644
index 000000000..b09a585c9
--- /dev/null
+++ b/public/codemirror/theme/duotone-dark.css
@@ -0,0 +1,35 @@
+/*
+Name:   DuoTone-Dark
+Author: by Bram de Haan, adapted from DuoTone themes by Simurai (http://simurai.com/projects/2016/01/01/duotone-themes)
+
+CodeMirror template by Jan T. Sott (https://github.com/idleberg), adapted by Bram de Haan (https://github.com/atelierbram/)
+*/
+
+.cm-s-duotone-dark.CodeMirror { background: #2a2734; color: #6c6783; }
+.cm-s-duotone-dark div.CodeMirror-selected { background: #545167!important; }
+.cm-s-duotone-dark .CodeMirror-gutters { background: #2a2734; border-right: 0px; }
+.cm-s-duotone-dark .CodeMirror-linenumber { color: #545167; }
+
+/* begin cursor */
+.cm-s-duotone-dark .CodeMirror-cursor { border-left: 1px solid #ffad5c; /* border-left: 1px solid #ffad5c80; */ border-right: .5em solid #ffad5c; /* border-right: .5em solid #ffad5c80; */ opacity: .5; }
+.cm-s-duotone-dark .CodeMirror-activeline-background { background: #363342; /* background: #36334280;  */ opacity: .5;}
+.cm-s-duotone-dark .cm-fat-cursor .CodeMirror-cursor { background: #ffad5c; /* background: #ffad5c80; */ opacity: .5;}
+/* end cursor */
+
+.cm-s-duotone-dark span.cm-atom, .cm-s-duotone-dark span.cm-number, .cm-s-duotone-dark span.cm-keyword, .cm-s-duotone-dark span.cm-variable, .cm-s-duotone-dark span.cm-attribute, .cm-s-duotone-dark span.cm-quote, .cm-s-duotone-dark span.cm-hr, .cm-s-duotone-dark span.cm-link { color: #ffcc99; }
+
+.cm-s-duotone-dark span.cm-property { color: #9a86fd; }
+.cm-s-duotone-dark span.cm-punctuation, .cm-s-duotone-dark span.cm-unit, .cm-s-duotone-dark span.cm-negative { color: #e09142; }
+.cm-s-duotone-dark span.cm-string { color: #ffb870; }
+.cm-s-duotone-dark span.cm-operator { color: #ffad5c; }
+.cm-s-duotone-dark span.cm-positive { color: #6a51e6; }
+
+.cm-s-duotone-dark span.cm-variable-2, .cm-s-duotone-dark span.cm-variable-3, .cm-s-duotone-dark span.cm-string-2, .cm-s-duotone-dark span.cm-url { color: #7a63ee; }
+.cm-s-duotone-dark span.cm-def, .cm-s-duotone-dark span.cm-tag, .cm-s-duotone-dark span.cm-builtin, .cm-s-duotone-dark span.cm-qualifier, .cm-s-duotone-dark span.cm-header, .cm-s-duotone-dark span.cm-em { color: #eeebff; }
+.cm-s-duotone-dark span.cm-bracket, .cm-s-duotone-dark span.cm-comment { color: #6c6783; }
+
+/* using #f00 red for errors, don't think any of the colorscheme variables will stand out enough, ... maybe by giving it a background-color ... */
+.cm-s-duotone-dark span.cm-error, .cm-s-duotone-dark span.cm-invalidchar { color: #f00; }
+
+.cm-s-duotone-dark span.cm-header { font-weight: normal; }
+.cm-s-duotone-dark .CodeMirror-matchingbracket { text-decoration: underline; color: #eeebff !important; } 
diff --git a/public/codemirror/theme/duotone-light.css b/public/codemirror/theme/duotone-light.css
new file mode 100644
index 000000000..80203d15d
--- /dev/null
+++ b/public/codemirror/theme/duotone-light.css
@@ -0,0 +1,36 @@
+/*
+Name:   DuoTone-Light
+Author: by Bram de Haan, adapted from DuoTone themes by Simurai (http://simurai.com/projects/2016/01/01/duotone-themes)
+
+CodeMirror template by Jan T. Sott (https://github.com/idleberg), adapted by Bram de Haan (https://github.com/atelierbram/)
+*/
+
+.cm-s-duotone-light.CodeMirror { background: #faf8f5; color: #b29762; }
+.cm-s-duotone-light div.CodeMirror-selected { background: #e3dcce !important; }
+.cm-s-duotone-light .CodeMirror-gutters { background: #faf8f5; border-right: 0px; }
+.cm-s-duotone-light .CodeMirror-linenumber { color: #cdc4b1; }
+
+/* begin cursor */
+.cm-s-duotone-light .CodeMirror-cursor { border-left: 1px solid #93abdc; /* border-left: 1px solid #93abdc80; */ border-right: .5em solid #93abdc; /* border-right: .5em solid #93abdc80; */ opacity: .5; }
+.cm-s-duotone-light .CodeMirror-activeline-background { background: #e3dcce;  /* background: #e3dcce80; */ opacity: .5; }
+.cm-s-duotone-light .cm-fat-cursor .CodeMirror-cursor { background: #93abdc; /* #93abdc80; */ opacity: .5; }
+/* end cursor */
+
+.cm-s-duotone-light span.cm-atom, .cm-s-duotone-light span.cm-number, .cm-s-duotone-light span.cm-keyword, .cm-s-duotone-light span.cm-variable, .cm-s-duotone-light span.cm-attribute, .cm-s-duotone-light span.cm-quote, .cm-s-duotone-light-light span.cm-hr, .cm-s-duotone-light-light span.cm-link { color: #063289; }
+
+.cm-s-duotone-light span.cm-property { color: #b29762; }
+.cm-s-duotone-light span.cm-punctuation, .cm-s-duotone-light span.cm-unit, .cm-s-duotone-light span.cm-negative { color: #063289; }
+.cm-s-duotone-light span.cm-string, .cm-s-duotone-light span.cm-operator { color: #1659df; }
+.cm-s-duotone-light span.cm-positive { color: #896724; }
+
+.cm-s-duotone-light span.cm-variable-2, .cm-s-duotone-light span.cm-variable-3, .cm-s-duotone-light span.cm-string-2, .cm-s-duotone-light span.cm-url { color: #896724; }
+.cm-s-duotone-light span.cm-def, .cm-s-duotone-light span.cm-tag, .cm-s-duotone-light span.cm-builtin, .cm-s-duotone-light span.cm-qualifier, .cm-s-duotone-light span.cm-header, .cm-s-duotone-light span.cm-em { color: #2d2006; }
+.cm-s-duotone-light span.cm-bracket, .cm-s-duotone-light span.cm-comment { color: #b6ad9a; }
+
+/* using #f00 red for errors, don't think any of the colorscheme variables will stand out enough, ... maybe by giving it a background-color ... */
+/* .cm-s-duotone-light span.cm-error { background: #896724; color: #728fcb; } */
+.cm-s-duotone-light span.cm-error, .cm-s-duotone-light span.cm-invalidchar { color: #f00; }
+
+.cm-s-duotone-light span.cm-header { font-weight: normal; }
+.cm-s-duotone-light .CodeMirror-matchingbracket { text-decoration: underline; color: #faf8f5 !important; }
+
diff --git a/public/codemirror/theme/eclipse.css b/public/codemirror/theme/eclipse.css
new file mode 100644
index 000000000..1bde460e9
--- /dev/null
+++ b/public/codemirror/theme/eclipse.css
@@ -0,0 +1,23 @@
+.cm-s-eclipse span.cm-meta { color: #FF1717; }
+.cm-s-eclipse span.cm-keyword { line-height: 1em; font-weight: bold; color: #7F0055; }
+.cm-s-eclipse span.cm-atom { color: #219; }
+.cm-s-eclipse span.cm-number { color: #164; }
+.cm-s-eclipse span.cm-def { color: #00f; }
+.cm-s-eclipse span.cm-variable { color: black; }
+.cm-s-eclipse span.cm-variable-2 { color: #0000C0; }
+.cm-s-eclipse span.cm-variable-3 { color: #0000C0; }
+.cm-s-eclipse span.cm-property { color: black; }
+.cm-s-eclipse span.cm-operator { color: black; }
+.cm-s-eclipse span.cm-comment { color: #3F7F5F; }
+.cm-s-eclipse span.cm-string { color: #2A00FF; }
+.cm-s-eclipse span.cm-string-2 { color: #f50; }
+.cm-s-eclipse span.cm-qualifier { color: #555; }
+.cm-s-eclipse span.cm-builtin { color: #30a; }
+.cm-s-eclipse span.cm-bracket { color: #cc7; }
+.cm-s-eclipse span.cm-tag { color: #170; }
+.cm-s-eclipse span.cm-attribute { color: #00c; }
+.cm-s-eclipse span.cm-link { color: #219; }
+.cm-s-eclipse span.cm-error { color: #f00; }
+
+.cm-s-eclipse .CodeMirror-activeline-background { background: #e8f2ff; }
+.cm-s-eclipse .CodeMirror-matchingbracket { outline:1px solid grey; color:black !important; }
diff --git a/public/codemirror/theme/elegant.css b/public/codemirror/theme/elegant.css
new file mode 100644
index 000000000..45b3ea655
--- /dev/null
+++ b/public/codemirror/theme/elegant.css
@@ -0,0 +1,13 @@
+.cm-s-elegant span.cm-number, .cm-s-elegant span.cm-string, .cm-s-elegant span.cm-atom { color: #762; }
+.cm-s-elegant span.cm-comment { color: #262; font-style: italic; line-height: 1em; }
+.cm-s-elegant span.cm-meta { color: #555; font-style: italic; line-height: 1em; }
+.cm-s-elegant span.cm-variable { color: black; }
+.cm-s-elegant span.cm-variable-2 { color: #b11; }
+.cm-s-elegant span.cm-qualifier { color: #555; }
+.cm-s-elegant span.cm-keyword { color: #730; }
+.cm-s-elegant span.cm-builtin { color: #30a; }
+.cm-s-elegant span.cm-link { color: #762; }
+.cm-s-elegant span.cm-error { background-color: #fdd; }
+
+.cm-s-elegant .CodeMirror-activeline-background { background: #e8f2ff; }
+.cm-s-elegant .CodeMirror-matchingbracket { outline:1px solid grey; color:black !important; }
diff --git a/public/codemirror/theme/erlang-dark.css b/public/codemirror/theme/erlang-dark.css
new file mode 100644
index 000000000..65fe4814c
--- /dev/null
+++ b/public/codemirror/theme/erlang-dark.css
@@ -0,0 +1,34 @@
+.cm-s-erlang-dark.CodeMirror { background: #002240; color: white; }
+.cm-s-erlang-dark div.CodeMirror-selected { background: #b36539; }
+.cm-s-erlang-dark .CodeMirror-line::selection, .cm-s-erlang-dark .CodeMirror-line > span::selection, .cm-s-erlang-dark .CodeMirror-line > span > span::selection { background: rgba(179, 101, 57, .99); }
+.cm-s-erlang-dark .CodeMirror-line::-moz-selection, .cm-s-erlang-dark .CodeMirror-line > span::-moz-selection, .cm-s-erlang-dark .CodeMirror-line > span > span::-moz-selection { background: rgba(179, 101, 57, .99); }
+.cm-s-erlang-dark .CodeMirror-gutters { background: #002240; border-right: 1px solid #aaa; }
+.cm-s-erlang-dark .CodeMirror-guttermarker { color: white; }
+.cm-s-erlang-dark .CodeMirror-guttermarker-subtle { color: #d0d0d0; }
+.cm-s-erlang-dark .CodeMirror-linenumber { color: #d0d0d0; }
+.cm-s-erlang-dark .CodeMirror-cursor { border-left: 1px solid white; }
+
+.cm-s-erlang-dark span.cm-quote      { color: #ccc; }
+.cm-s-erlang-dark span.cm-atom       { color: #f133f1; }
+.cm-s-erlang-dark span.cm-attribute  { color: #ff80e1; }
+.cm-s-erlang-dark span.cm-bracket    { color: #ff9d00; }
+.cm-s-erlang-dark span.cm-builtin    { color: #eaa; }
+.cm-s-erlang-dark span.cm-comment    { color: #77f; }
+.cm-s-erlang-dark span.cm-def        { color: #e7a; }
+.cm-s-erlang-dark span.cm-keyword    { color: #ffee80; }
+.cm-s-erlang-dark span.cm-meta       { color: #50fefe; }
+.cm-s-erlang-dark span.cm-number     { color: #ffd0d0; }
+.cm-s-erlang-dark span.cm-operator   { color: #d55; }
+.cm-s-erlang-dark span.cm-property   { color: #ccc; }
+.cm-s-erlang-dark span.cm-qualifier  { color: #ccc; }
+.cm-s-erlang-dark span.cm-special    { color: #ffbbbb; }
+.cm-s-erlang-dark span.cm-string     { color: #3ad900; }
+.cm-s-erlang-dark span.cm-string-2   { color: #ccc; }
+.cm-s-erlang-dark span.cm-tag        { color: #9effff; }
+.cm-s-erlang-dark span.cm-variable   { color: #50fe50; }
+.cm-s-erlang-dark span.cm-variable-2 { color: #e0e; }
+.cm-s-erlang-dark span.cm-variable-3 { color: #ccc; }
+.cm-s-erlang-dark span.cm-error      { color: #9d1e15; }
+
+.cm-s-erlang-dark .CodeMirror-activeline-background { background: #013461; }
+.cm-s-erlang-dark .CodeMirror-matchingbracket { outline:1px solid grey; color:white !important; }
diff --git a/public/codemirror/theme/hopscotch.css b/public/codemirror/theme/hopscotch.css
new file mode 100644
index 000000000..7d05431bd
--- /dev/null
+++ b/public/codemirror/theme/hopscotch.css
@@ -0,0 +1,34 @@
+/*
+
+    Name:       Hopscotch
+    Author:     Jan T. Sott
+
+    CodeMirror template by Jan T. Sott (https://github.com/idleberg/base16-codemirror)
+    Original Base16 color scheme by Chris Kempson (https://github.com/chriskempson/base16)
+
+*/
+
+.cm-s-hopscotch.CodeMirror {background: #322931; color: #d5d3d5;}
+.cm-s-hopscotch div.CodeMirror-selected {background: #433b42 !important;}
+.cm-s-hopscotch .CodeMirror-gutters {background: #322931; border-right: 0px;}
+.cm-s-hopscotch .CodeMirror-linenumber {color: #797379;}
+.cm-s-hopscotch .CodeMirror-cursor {border-left: 1px solid #989498 !important;}
+
+.cm-s-hopscotch span.cm-comment {color: #b33508;}
+.cm-s-hopscotch span.cm-atom {color: #c85e7c;}
+.cm-s-hopscotch span.cm-number {color: #c85e7c;}
+
+.cm-s-hopscotch span.cm-property, .cm-s-hopscotch span.cm-attribute {color: #8fc13e;}
+.cm-s-hopscotch span.cm-keyword {color: #dd464c;}
+.cm-s-hopscotch span.cm-string {color: #fdcc59;}
+
+.cm-s-hopscotch span.cm-variable {color: #8fc13e;}
+.cm-s-hopscotch span.cm-variable-2 {color: #1290bf;}
+.cm-s-hopscotch span.cm-def {color: #fd8b19;}
+.cm-s-hopscotch span.cm-error {background: #dd464c; color: #989498;}
+.cm-s-hopscotch span.cm-bracket {color: #d5d3d5;}
+.cm-s-hopscotch span.cm-tag {color: #dd464c;}
+.cm-s-hopscotch span.cm-link {color: #c85e7c;}
+
+.cm-s-hopscotch .CodeMirror-matchingbracket { text-decoration: underline; color: white !important;}
+.cm-s-hopscotch .CodeMirror-activeline-background { background: #302020; }
diff --git a/public/codemirror/theme/icecoder.css b/public/codemirror/theme/icecoder.css
new file mode 100644
index 000000000..ffebaf2f0
--- /dev/null
+++ b/public/codemirror/theme/icecoder.css
@@ -0,0 +1,43 @@
+/*
+ICEcoder default theme by Matt Pass, used in code editor available at https://icecoder.net
+*/
+
+.cm-s-icecoder { color: #666; background: #1d1d1b; }
+
+.cm-s-icecoder span.cm-keyword { color: #eee; font-weight:bold; }  /* off-white 1 */
+.cm-s-icecoder span.cm-atom { color: #e1c76e; }                    /* yellow */
+.cm-s-icecoder span.cm-number { color: #6cb5d9; }                  /* blue */
+.cm-s-icecoder span.cm-def { color: #b9ca4a; }                     /* green */
+
+.cm-s-icecoder span.cm-variable { color: #6cb5d9; }                /* blue */
+.cm-s-icecoder span.cm-variable-2 { color: #cc1e5c; }              /* pink */
+.cm-s-icecoder span.cm-variable-3 { color: #f9602c; }              /* orange */
+
+.cm-s-icecoder span.cm-property { color: #eee; }                   /* off-white 1 */
+.cm-s-icecoder span.cm-operator { color: #9179bb; }                /* purple */
+.cm-s-icecoder span.cm-comment { color: #97a3aa; }                 /* grey-blue */
+
+.cm-s-icecoder span.cm-string { color: #b9ca4a; }                  /* green */
+.cm-s-icecoder span.cm-string-2 { color: #6cb5d9; }                /* blue */
+
+.cm-s-icecoder span.cm-meta { color: #555; }                       /* grey */
+
+.cm-s-icecoder span.cm-qualifier { color: #555; }                  /* grey */
+.cm-s-icecoder span.cm-builtin { color: #214e7b; }                 /* bright blue */
+.cm-s-icecoder span.cm-bracket { color: #cc7; }                    /* grey-yellow */
+
+.cm-s-icecoder span.cm-tag { color: #e8e8e8; }                     /* off-white 2 */
+.cm-s-icecoder span.cm-attribute { color: #099; }                  /* teal */
+
+.cm-s-icecoder span.cm-header { color: #6a0d6a; }                  /* purple-pink */
+.cm-s-icecoder span.cm-quote { color: #186718; }                   /* dark green */
+.cm-s-icecoder span.cm-hr { color: #888; }                         /* mid-grey */
+.cm-s-icecoder span.cm-link { color: #e1c76e; }                    /* yellow */
+.cm-s-icecoder span.cm-error { color: #d00; }                      /* red */
+
+.cm-s-icecoder .CodeMirror-cursor { border-left: 1px solid white; }
+.cm-s-icecoder div.CodeMirror-selected { color: #fff; background: #037; }
+.cm-s-icecoder .CodeMirror-gutters { background: #1d1d1b; min-width: 41px; border-right: 0; }
+.cm-s-icecoder .CodeMirror-linenumber { color: #555; cursor: default; }
+.cm-s-icecoder .CodeMirror-matchingbracket { color: #fff !important; background: #555 !important; }
+.cm-s-icecoder .CodeMirror-activeline-background { background: #000; }
diff --git a/public/codemirror/theme/isotope.css b/public/codemirror/theme/isotope.css
new file mode 100644
index 000000000..d0d6263cf
--- /dev/null
+++ b/public/codemirror/theme/isotope.css
@@ -0,0 +1,34 @@
+/*
+
+    Name:       Isotope
+    Author:     David Desandro / Jan T. Sott
+
+    CodeMirror template by Jan T. Sott (https://github.com/idleberg/base16-codemirror)
+    Original Base16 color scheme by Chris Kempson (https://github.com/chriskempson/base16)
+
+*/
+
+.cm-s-isotope.CodeMirror {background: #000000; color: #e0e0e0;}
+.cm-s-isotope div.CodeMirror-selected {background: #404040 !important;}
+.cm-s-isotope .CodeMirror-gutters {background: #000000; border-right: 0px;}
+.cm-s-isotope .CodeMirror-linenumber {color: #808080;}
+.cm-s-isotope .CodeMirror-cursor {border-left: 1px solid #c0c0c0 !important;}
+
+.cm-s-isotope span.cm-comment {color: #3300ff;}
+.cm-s-isotope span.cm-atom {color: #cc00ff;}
+.cm-s-isotope span.cm-number {color: #cc00ff;}
+
+.cm-s-isotope span.cm-property, .cm-s-isotope span.cm-attribute {color: #33ff00;}
+.cm-s-isotope span.cm-keyword {color: #ff0000;}
+.cm-s-isotope span.cm-string {color: #ff0099;}
+
+.cm-s-isotope span.cm-variable {color: #33ff00;}
+.cm-s-isotope span.cm-variable-2 {color: #0066ff;}
+.cm-s-isotope span.cm-def {color: #ff9900;}
+.cm-s-isotope span.cm-error {background: #ff0000; color: #c0c0c0;}
+.cm-s-isotope span.cm-bracket {color: #e0e0e0;}
+.cm-s-isotope span.cm-tag {color: #ff0000;}
+.cm-s-isotope span.cm-link {color: #cc00ff;}
+
+.cm-s-isotope .CodeMirror-matchingbracket { text-decoration: underline; color: white !important;}
+.cm-s-isotope .CodeMirror-activeline-background { background: #202020; }
diff --git a/public/codemirror/theme/lesser-dark.css b/public/codemirror/theme/lesser-dark.css
new file mode 100644
index 000000000..690c183d7
--- /dev/null
+++ b/public/codemirror/theme/lesser-dark.css
@@ -0,0 +1,47 @@
+/*
+http://lesscss.org/ dark theme
+Ported to CodeMirror by Peter Kroon
+*/
+.cm-s-lesser-dark {
+  line-height: 1.3em;
+}
+.cm-s-lesser-dark.CodeMirror { background: #262626; color: #EBEFE7; text-shadow: 0 -1px 1px #262626; }
+.cm-s-lesser-dark div.CodeMirror-selected { background: #45443B; } /* 33322B*/
+.cm-s-lesser-dark .CodeMirror-line::selection, .cm-s-lesser-dark .CodeMirror-line > span::selection, .cm-s-lesser-dark .CodeMirror-line > span > span::selection { background: rgba(69, 68, 59, .99); }
+.cm-s-lesser-dark .CodeMirror-line::-moz-selection, .cm-s-lesser-dark .CodeMirror-line > span::-moz-selection, .cm-s-lesser-dark .CodeMirror-line > span > span::-moz-selection { background: rgba(69, 68, 59, .99); }
+.cm-s-lesser-dark .CodeMirror-cursor { border-left: 1px solid white; }
+.cm-s-lesser-dark pre { padding: 0 8px; }/*editable code holder*/
+
+.cm-s-lesser-dark.CodeMirror span.CodeMirror-matchingbracket { color: #7EFC7E; }/*65FC65*/
+
+.cm-s-lesser-dark .CodeMirror-gutters { background: #262626; border-right:1px solid #aaa; }
+.cm-s-lesser-dark .CodeMirror-guttermarker { color: #599eff; }
+.cm-s-lesser-dark .CodeMirror-guttermarker-subtle { color: #777; }
+.cm-s-lesser-dark .CodeMirror-linenumber { color: #777; }
+
+.cm-s-lesser-dark span.cm-header { color: #a0a; }
+.cm-s-lesser-dark span.cm-quote { color: #090; }
+.cm-s-lesser-dark span.cm-keyword { color: #599eff; }
+.cm-s-lesser-dark span.cm-atom { color: #C2B470; }
+.cm-s-lesser-dark span.cm-number { color: #B35E4D; }
+.cm-s-lesser-dark span.cm-def { color: white; }
+.cm-s-lesser-dark span.cm-variable { color:#D9BF8C; }
+.cm-s-lesser-dark span.cm-variable-2 { color: #669199; }
+.cm-s-lesser-dark span.cm-variable-3 { color: white; }
+.cm-s-lesser-dark span.cm-property { color: #92A75C; }
+.cm-s-lesser-dark span.cm-operator { color: #92A75C; }
+.cm-s-lesser-dark span.cm-comment { color: #666; }
+.cm-s-lesser-dark span.cm-string { color: #BCD279; }
+.cm-s-lesser-dark span.cm-string-2 { color: #f50; }
+.cm-s-lesser-dark span.cm-meta { color: #738C73; }
+.cm-s-lesser-dark span.cm-qualifier { color: #555; }
+.cm-s-lesser-dark span.cm-builtin { color: #ff9e59; }
+.cm-s-lesser-dark span.cm-bracket { color: #EBEFE7; }
+.cm-s-lesser-dark span.cm-tag { color: #669199; }
+.cm-s-lesser-dark span.cm-attribute { color: #00c; }
+.cm-s-lesser-dark span.cm-hr { color: #999; }
+.cm-s-lesser-dark span.cm-link { color: #00c; }
+.cm-s-lesser-dark span.cm-error { color: #9d1e15; }
+
+.cm-s-lesser-dark .CodeMirror-activeline-background { background: #3C3A3A; }
+.cm-s-lesser-dark .CodeMirror-matchingbracket { outline:1px solid grey; color:white !important; }
diff --git a/public/codemirror/theme/liquibyte.css b/public/codemirror/theme/liquibyte.css
new file mode 100644
index 000000000..9db8bde73
--- /dev/null
+++ b/public/codemirror/theme/liquibyte.css
@@ -0,0 +1,95 @@
+.cm-s-liquibyte.CodeMirror {
+	background-color: #000;
+	color: #fff;
+	line-height: 1.2em;
+	font-size: 1em;
+}
+.cm-s-liquibyte .CodeMirror-focused .cm-matchhighlight {
+	text-decoration: underline;
+	text-decoration-color: #0f0;
+	text-decoration-style: wavy;
+}
+.cm-s-liquibyte .cm-trailingspace {
+	text-decoration: line-through;
+	text-decoration-color: #f00;
+	text-decoration-style: dotted;
+}
+.cm-s-liquibyte .cm-tab {
+	text-decoration: line-through;
+	text-decoration-color: #404040;
+	text-decoration-style: dotted;
+}
+.cm-s-liquibyte .CodeMirror-gutters { background-color: #262626; border-right: 1px solid #505050; padding-right: 0.8em; }
+.cm-s-liquibyte .CodeMirror-gutter-elt div { font-size: 1.2em; }
+.cm-s-liquibyte .CodeMirror-guttermarker {  }
+.cm-s-liquibyte .CodeMirror-guttermarker-subtle {  }
+.cm-s-liquibyte .CodeMirror-linenumber { color: #606060; padding-left: 0; }
+.cm-s-liquibyte .CodeMirror-cursor { border-left: 1px solid #eee; }
+
+.cm-s-liquibyte span.cm-comment     { color: #008000; }
+.cm-s-liquibyte span.cm-def         { color: #ffaf40; font-weight: bold; }
+.cm-s-liquibyte span.cm-keyword     { color: #c080ff; font-weight: bold; }
+.cm-s-liquibyte span.cm-builtin     { color: #ffaf40; font-weight: bold; }
+.cm-s-liquibyte span.cm-variable    { color: #5967ff; font-weight: bold; }
+.cm-s-liquibyte span.cm-string      { color: #ff8000; }
+.cm-s-liquibyte span.cm-number      { color: #0f0; font-weight: bold; }
+.cm-s-liquibyte span.cm-atom        { color: #bf3030; font-weight: bold; }
+
+.cm-s-liquibyte span.cm-variable-2  { color: #007f7f; font-weight: bold; }
+.cm-s-liquibyte span.cm-variable-3  { color: #c080ff; font-weight: bold; }
+.cm-s-liquibyte span.cm-property    { color: #999; font-weight: bold; }
+.cm-s-liquibyte span.cm-operator    { color: #fff; }
+
+.cm-s-liquibyte span.cm-meta        { color: #0f0; }
+.cm-s-liquibyte span.cm-qualifier   { color: #fff700; font-weight: bold; }
+.cm-s-liquibyte span.cm-bracket     { color: #cc7; }
+.cm-s-liquibyte span.cm-tag         { color: #ff0; font-weight: bold; }
+.cm-s-liquibyte span.cm-attribute   { color: #c080ff; font-weight: bold; }
+.cm-s-liquibyte span.cm-error       { color: #f00; }
+
+.cm-s-liquibyte div.CodeMirror-selected { background-color: rgba(255, 0, 0, 0.25); }
+
+.cm-s-liquibyte span.cm-compilation { background-color: rgba(255, 255, 255, 0.12); }
+
+.cm-s-liquibyte .CodeMirror-activeline-background { background-color: rgba(0, 255, 0, 0.15); }
+
+/* Default styles for common addons */
+.cm-s-liquibyte .CodeMirror span.CodeMirror-matchingbracket { color: #0f0; font-weight: bold; }
+.cm-s-liquibyte .CodeMirror span.CodeMirror-nonmatchingbracket { color: #f00; font-weight: bold; }
+.CodeMirror-matchingtag { background-color: rgba(150, 255, 0, .3); }
+/* Scrollbars */
+/* Simple */
+.cm-s-liquibyte div.CodeMirror-simplescroll-horizontal div:hover, div.CodeMirror-simplescroll-vertical div:hover {
+	background-color: rgba(80, 80, 80, .7);
+}
+.cm-s-liquibyte div.CodeMirror-simplescroll-horizontal div, div.CodeMirror-simplescroll-vertical div {
+	background-color: rgba(80, 80, 80, .3);
+	border: 1px solid #404040;
+	border-radius: 5px;
+}
+.cm-s-liquibyte div.CodeMirror-simplescroll-vertical div {
+	border-top: 1px solid #404040;
+	border-bottom: 1px solid #404040;
+}
+.cm-s-liquibyte div.CodeMirror-simplescroll-horizontal div {
+	border-left: 1px solid #404040;
+	border-right: 1px solid #404040;
+}
+.cm-s-liquibyte div.CodeMirror-simplescroll-vertical {
+	background-color: #262626;
+}
+.cm-s-liquibyte div.CodeMirror-simplescroll-horizontal {
+	background-color: #262626;
+	border-top: 1px solid #404040;
+}
+/* Overlay */
+.cm-s-liquibyte div.CodeMirror-overlayscroll-horizontal div, div.CodeMirror-overlayscroll-vertical div {
+	background-color: #404040;
+	border-radius: 5px;
+}
+.cm-s-liquibyte div.CodeMirror-overlayscroll-vertical div {
+	border: 1px solid #404040;
+}
+.cm-s-liquibyte div.CodeMirror-overlayscroll-horizontal div {
+	border: 1px solid #404040;
+}
diff --git a/public/codemirror/theme/material.css b/public/codemirror/theme/material.css
new file mode 100644
index 000000000..01d867932
--- /dev/null
+++ b/public/codemirror/theme/material.css
@@ -0,0 +1,53 @@
+/*
+
+    Name:       material
+    Author:     Michael Kaminsky (http://github.com/mkaminsky11)
+
+    Original material color scheme by Mattia Astorino (https://github.com/equinusocio/material-theme)
+
+*/
+
+.cm-s-material.CodeMirror {
+  background-color: #263238;
+  color: rgba(233, 237, 237, 1);
+}
+.cm-s-material .CodeMirror-gutters {
+  background: #263238;
+  color: rgb(83,127,126);
+  border: none;
+}
+.cm-s-material .CodeMirror-guttermarker, .cm-s-material .CodeMirror-guttermarker-subtle, .cm-s-material .CodeMirror-linenumber { color: rgb(83,127,126); }
+.cm-s-material .CodeMirror-cursor { border-left: 1px solid #f8f8f0; }
+.cm-s-material div.CodeMirror-selected { background: rgba(255, 255, 255, 0.15); }
+.cm-s-material.CodeMirror-focused div.CodeMirror-selected { background: rgba(255, 255, 255, 0.10); }
+.cm-s-material .CodeMirror-line::selection, .cm-s-material .CodeMirror-line > span::selection, .cm-s-material .CodeMirror-line > span > span::selection { background: rgba(255, 255, 255, 0.10); }
+.cm-s-material .CodeMirror-line::-moz-selection, .cm-s-material .CodeMirror-line > span::-moz-selection, .cm-s-material .CodeMirror-line > span > span::-moz-selection { background: rgba(255, 255, 255, 0.10); }
+
+.cm-s-material .CodeMirror-activeline-background { background: rgba(0, 0, 0, 0); }
+.cm-s-material .cm-keyword { color: rgba(199, 146, 234, 1); }
+.cm-s-material .cm-operator { color: rgba(233, 237, 237, 1); }
+.cm-s-material .cm-variable-2 { color: #80CBC4; }
+.cm-s-material .cm-variable-3 { color: #82B1FF; }
+.cm-s-material .cm-builtin { color: #DECB6B; }
+.cm-s-material .cm-atom { color: #F77669; }
+.cm-s-material .cm-number { color: #F77669; }
+.cm-s-material .cm-def { color: rgba(233, 237, 237, 1); }
+.cm-s-material .cm-string { color: #C3E88D; }
+.cm-s-material .cm-string-2 { color: #80CBC4; }
+.cm-s-material .cm-comment { color: #546E7A; }
+.cm-s-material .cm-variable { color: #82B1FF; }
+.cm-s-material .cm-tag { color: #80CBC4; }
+.cm-s-material .cm-meta { color: #80CBC4; }
+.cm-s-material .cm-attribute { color: #FFCB6B; }
+.cm-s-material .cm-property { color: #80CBAE; }
+.cm-s-material .cm-qualifier { color: #DECB6B; }
+.cm-s-material .cm-variable-3 { color: #DECB6B; }
+.cm-s-material .cm-tag { color: rgba(255, 83, 112, 1); }
+.cm-s-material .cm-error {
+  color: rgba(255, 255, 255, 1.0);
+  background-color: #EC5F67;
+}
+.cm-s-material .CodeMirror-matchingbracket {
+  text-decoration: underline;
+  color: white !important;
+}
diff --git a/public/codemirror/theme/mbo.css b/public/codemirror/theme/mbo.css
new file mode 100644
index 000000000..e164fcf42
--- /dev/null
+++ b/public/codemirror/theme/mbo.css
@@ -0,0 +1,37 @@
+/****************************************************************/
+/*   Based on mbonaci's Brackets mbo theme                      */
+/*   https://github.com/mbonaci/global/blob/master/Mbo.tmTheme  */
+/*   Create your own: http://tmtheme-editor.herokuapp.com       */
+/****************************************************************/
+
+.cm-s-mbo.CodeMirror { background: #2c2c2c; color: #ffffec; }
+.cm-s-mbo div.CodeMirror-selected { background: #716C62; }
+.cm-s-mbo .CodeMirror-line::selection, .cm-s-mbo .CodeMirror-line > span::selection, .cm-s-mbo .CodeMirror-line > span > span::selection { background: rgba(113, 108, 98, .99); }
+.cm-s-mbo .CodeMirror-line::-moz-selection, .cm-s-mbo .CodeMirror-line > span::-moz-selection, .cm-s-mbo .CodeMirror-line > span > span::-moz-selection { background: rgba(113, 108, 98, .99); }
+.cm-s-mbo .CodeMirror-gutters { background: #4e4e4e; border-right: 0px; }
+.cm-s-mbo .CodeMirror-guttermarker { color: white; }
+.cm-s-mbo .CodeMirror-guttermarker-subtle { color: grey; }
+.cm-s-mbo .CodeMirror-linenumber { color: #dadada; }
+.cm-s-mbo .CodeMirror-cursor { border-left: 1px solid #ffffec; }
+
+.cm-s-mbo span.cm-comment { color: #95958a; }
+.cm-s-mbo span.cm-atom { color: #00a8c6; }
+.cm-s-mbo span.cm-number { color: #00a8c6; }
+
+.cm-s-mbo span.cm-property, .cm-s-mbo span.cm-attribute { color: #9ddfe9; }
+.cm-s-mbo span.cm-keyword { color: #ffb928; }
+.cm-s-mbo span.cm-string { color: #ffcf6c; }
+.cm-s-mbo span.cm-string.cm-property { color: #ffffec; }
+
+.cm-s-mbo span.cm-variable { color: #ffffec; }
+.cm-s-mbo span.cm-variable-2 { color: #00a8c6; }
+.cm-s-mbo span.cm-def { color: #ffffec; }
+.cm-s-mbo span.cm-bracket { color: #fffffc; font-weight: bold; }
+.cm-s-mbo span.cm-tag { color: #9ddfe9; }
+.cm-s-mbo span.cm-link { color: #f54b07; }
+.cm-s-mbo span.cm-error { border-bottom: #636363; color: #ffffec; }
+.cm-s-mbo span.cm-qualifier { color: #ffffec; }
+
+.cm-s-mbo .CodeMirror-activeline-background { background: #494b41; }
+.cm-s-mbo .CodeMirror-matchingbracket { color: #ffb928 !important; }
+.cm-s-mbo .CodeMirror-matchingtag { background: rgba(255, 255, 255, .37); }
diff --git a/public/codemirror/theme/mdn-like.css b/public/codemirror/theme/mdn-like.css
new file mode 100644
index 000000000..f325d4500
--- /dev/null
+++ b/public/codemirror/theme/mdn-like.css
@@ -0,0 +1,46 @@
+/*
+  MDN-LIKE Theme - Mozilla
+  Ported to CodeMirror by Peter Kroon 
+  Report bugs/issues here: https://github.com/codemirror/CodeMirror/issues
+  GitHub: @peterkroon
+
+  The mdn-like theme is inspired on the displayed code examples at: https://developer.mozilla.org/en-US/docs/Web/CSS/animation
+
+*/
+.cm-s-mdn-like.CodeMirror { color: #999; background-color: #fff; }
+.cm-s-mdn-like div.CodeMirror-selected { background: #cfc; }
+.cm-s-mdn-like .CodeMirror-line::selection, .cm-s-mdn-like .CodeMirror-line > span::selection, .cm-s-mdn-like .CodeMirror-line > span > span::selection { background: #cfc; }
+.cm-s-mdn-like .CodeMirror-line::-moz-selection, .cm-s-mdn-like .CodeMirror-line > span::-moz-selection, .cm-s-mdn-like .CodeMirror-line > span > span::-moz-selection { background: #cfc; }
+
+.cm-s-mdn-like .CodeMirror-gutters { background: #f8f8f8; border-left: 6px solid rgba(0,83,159,0.65); color: #333; }
+.cm-s-mdn-like .CodeMirror-linenumber { color: #aaa; padding-left: 8px; }
+.cm-s-mdn-like .CodeMirror-cursor { border-left: 2px solid #222; }
+
+.cm-s-mdn-like .cm-keyword { color: #6262FF; }
+.cm-s-mdn-like .cm-atom { color: #F90; }
+.cm-s-mdn-like .cm-number { color:  #ca7841; }
+.cm-s-mdn-like .cm-def { color: #8DA6CE; }
+.cm-s-mdn-like span.cm-variable-2, .cm-s-mdn-like span.cm-tag { color: #690; }
+.cm-s-mdn-like span.cm-variable-3, .cm-s-mdn-like span.cm-def { color: #07a; }
+
+.cm-s-mdn-like .cm-variable { color: #07a; }
+.cm-s-mdn-like .cm-property { color: #905; }
+.cm-s-mdn-like .cm-qualifier { color: #690; }
+
+.cm-s-mdn-like .cm-operator { color: #cda869; }
+.cm-s-mdn-like .cm-comment { color:#777; font-weight:normal; }
+.cm-s-mdn-like .cm-string { color:#07a; font-style:italic; }
+.cm-s-mdn-like .cm-string-2 { color:#bd6b18; } /*?*/
+.cm-s-mdn-like .cm-meta { color: #000; } /*?*/
+.cm-s-mdn-like .cm-builtin { color: #9B7536; } /*?*/
+.cm-s-mdn-like .cm-tag { color: #997643; }
+.cm-s-mdn-like .cm-attribute { color: #d6bb6d; } /*?*/
+.cm-s-mdn-like .cm-header { color: #FF6400; }
+.cm-s-mdn-like .cm-hr { color: #AEAEAE; }
+.cm-s-mdn-like .cm-link { color:#ad9361; font-style:italic; text-decoration:none; }
+.cm-s-mdn-like .cm-error { border-bottom: 1px solid red; }
+
+div.cm-s-mdn-like .CodeMirror-activeline-background { background: #efefff; }
+div.cm-s-mdn-like span.CodeMirror-matchingbracket { outline:1px solid grey; color: inherit; }
+
+.cm-s-mdn-like.CodeMirror { background-image: url(data:image/png;base64,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); }
diff --git a/public/codemirror/theme/midnight.css b/public/codemirror/theme/midnight.css
new file mode 100644
index 000000000..e41f10560
--- /dev/null
+++ b/public/codemirror/theme/midnight.css
@@ -0,0 +1,45 @@
+/* Based on the theme at http://bonsaiden.github.com/JavaScript-Garden */
+
+/**/
+.cm-s-midnight span.CodeMirror-matchhighlight { background: #494949; }
+.cm-s-midnight.CodeMirror-focused span.CodeMirror-matchhighlight { background: #314D67 !important; }
+
+/**/
+.cm-s-midnight .CodeMirror-activeline-background { background: #253540; }
+
+.cm-s-midnight.CodeMirror {
+    background: #0F192A;
+    color: #D1EDFF;
+}
+
+.cm-s-midnight.CodeMirror { border-top: 1px solid black; border-bottom: 1px solid black; }
+
+.cm-s-midnight div.CodeMirror-selected { background: #314D67; }
+.cm-s-midnight .CodeMirror-line::selection, .cm-s-midnight .CodeMirror-line > span::selection, .cm-s-midnight .CodeMirror-line > span > span::selection { background: rgba(49, 77, 103, .99); }
+.cm-s-midnight .CodeMirror-line::-moz-selection, .cm-s-midnight .CodeMirror-line > span::-moz-selection, .cm-s-midnight .CodeMirror-line > span > span::-moz-selection { background: rgba(49, 77, 103, .99); }
+.cm-s-midnight .CodeMirror-gutters { background: #0F192A; border-right: 1px solid; }
+.cm-s-midnight .CodeMirror-guttermarker { color: white; }
+.cm-s-midnight .CodeMirror-guttermarker-subtle { color: #d0d0d0; }
+.cm-s-midnight .CodeMirror-linenumber { color: #D0D0D0; }
+.cm-s-midnight .CodeMirror-cursor { border-left: 1px solid #F8F8F0; }
+
+.cm-s-midnight span.cm-comment { color: #428BDD; }
+.cm-s-midnight span.cm-atom { color: #AE81FF; }
+.cm-s-midnight span.cm-number { color: #D1EDFF; }
+
+.cm-s-midnight span.cm-property, .cm-s-midnight span.cm-attribute { color: #A6E22E; }
+.cm-s-midnight span.cm-keyword { color: #E83737; }
+.cm-s-midnight span.cm-string { color: #1DC116; }
+
+.cm-s-midnight span.cm-variable { color: #FFAA3E; }
+.cm-s-midnight span.cm-variable-2 { color: #FFAA3E; }
+.cm-s-midnight span.cm-def { color: #4DD; }
+.cm-s-midnight span.cm-bracket { color: #D1EDFF; }
+.cm-s-midnight span.cm-tag { color: #449; }
+.cm-s-midnight span.cm-link { color: #AE81FF; }
+.cm-s-midnight span.cm-error { background: #F92672; color: #F8F8F0; }
+
+.cm-s-midnight .CodeMirror-matchingbracket {
+  text-decoration: underline;
+  color: white !important;
+}
diff --git a/public/codemirror/theme/monokai.css b/public/codemirror/theme/monokai.css
new file mode 100644
index 000000000..7c8a4c5d0
--- /dev/null
+++ b/public/codemirror/theme/monokai.css
@@ -0,0 +1,36 @@
+/* Based on Sublime Text's Monokai theme */
+
+.cm-s-monokai.CodeMirror { background: #272822; color: #f8f8f2; }
+.cm-s-monokai div.CodeMirror-selected { background: #49483E; }
+.cm-s-monokai .CodeMirror-line::selection, .cm-s-monokai .CodeMirror-line > span::selection, .cm-s-monokai .CodeMirror-line > span > span::selection { background: rgba(73, 72, 62, .99); }
+.cm-s-monokai .CodeMirror-line::-moz-selection, .cm-s-monokai .CodeMirror-line > span::-moz-selection, .cm-s-monokai .CodeMirror-line > span > span::-moz-selection { background: rgba(73, 72, 62, .99); }
+.cm-s-monokai .CodeMirror-gutters { background: #272822; border-right: 0px; }
+.cm-s-monokai .CodeMirror-guttermarker { color: white; }
+.cm-s-monokai .CodeMirror-guttermarker-subtle { color: #d0d0d0; }
+.cm-s-monokai .CodeMirror-linenumber { color: #d0d0d0; }
+.cm-s-monokai .CodeMirror-cursor { border-left: 1px solid #f8f8f0; }
+
+.cm-s-monokai span.cm-comment { color: #75715e; }
+.cm-s-monokai span.cm-atom { color: #ae81ff; }
+.cm-s-monokai span.cm-number { color: #ae81ff; }
+
+.cm-s-monokai span.cm-property, .cm-s-monokai span.cm-attribute { color: #a6e22e; }
+.cm-s-monokai span.cm-keyword { color: #f92672; }
+.cm-s-monokai span.cm-builtin { color: #66d9ef; }
+.cm-s-monokai span.cm-string { color: #e6db74; }
+
+.cm-s-monokai span.cm-variable { color: #f8f8f2; }
+.cm-s-monokai span.cm-variable-2 { color: #9effff; }
+.cm-s-monokai span.cm-variable-3 { color: #66d9ef; }
+.cm-s-monokai span.cm-def { color: #fd971f; }
+.cm-s-monokai span.cm-bracket { color: #f8f8f2; }
+.cm-s-monokai span.cm-tag { color: #f92672; }
+.cm-s-monokai span.cm-header { color: #ae81ff; }
+.cm-s-monokai span.cm-link { color: #ae81ff; }
+.cm-s-monokai span.cm-error { background: #f92672; color: #f8f8f0; }
+
+.cm-s-monokai .CodeMirror-activeline-background { background: #373831; }
+.cm-s-monokai .CodeMirror-matchingbracket {
+  text-decoration: underline;
+  color: white !important;
+}
diff --git a/public/codemirror/theme/neat.css b/public/codemirror/theme/neat.css
new file mode 100644
index 000000000..4267b1a37
--- /dev/null
+++ b/public/codemirror/theme/neat.css
@@ -0,0 +1,12 @@
+.cm-s-neat span.cm-comment { color: #a86; }
+.cm-s-neat span.cm-keyword { line-height: 1em; font-weight: bold; color: blue; }
+.cm-s-neat span.cm-string { color: #a22; }
+.cm-s-neat span.cm-builtin { line-height: 1em; font-weight: bold; color: #077; }
+.cm-s-neat span.cm-special { line-height: 1em; font-weight: bold; color: #0aa; }
+.cm-s-neat span.cm-variable { color: black; }
+.cm-s-neat span.cm-number, .cm-s-neat span.cm-atom { color: #3a3; }
+.cm-s-neat span.cm-meta { color: #555; }
+.cm-s-neat span.cm-link { color: #3a3; }
+
+.cm-s-neat .CodeMirror-activeline-background { background: #e8f2ff; }
+.cm-s-neat .CodeMirror-matchingbracket { outline:1px solid grey; color:black !important; }
diff --git a/public/codemirror/theme/neo.css b/public/codemirror/theme/neo.css
new file mode 100644
index 000000000..b28d5c65f
--- /dev/null
+++ b/public/codemirror/theme/neo.css
@@ -0,0 +1,43 @@
+/* neo theme for codemirror */
+
+/* Color scheme */
+
+.cm-s-neo.CodeMirror {
+  background-color:#ffffff;
+  color:#2e383c;
+  line-height:1.4375;
+}
+.cm-s-neo .cm-comment { color:#75787b; }
+.cm-s-neo .cm-keyword, .cm-s-neo .cm-property { color:#1d75b3; }
+.cm-s-neo .cm-atom,.cm-s-neo .cm-number { color:#75438a; }
+.cm-s-neo .cm-node,.cm-s-neo .cm-tag { color:#9c3328; }
+.cm-s-neo .cm-string { color:#b35e14; }
+.cm-s-neo .cm-variable,.cm-s-neo .cm-qualifier { color:#047d65; }
+
+
+/* Editor styling */
+
+.cm-s-neo pre {
+  padding:0;
+}
+
+.cm-s-neo .CodeMirror-gutters {
+  border:none;
+  border-right:10px solid transparent;
+  background-color:transparent;
+}
+
+.cm-s-neo .CodeMirror-linenumber {
+  padding:0;
+  color:#e0e2e5;
+}
+
+.cm-s-neo .CodeMirror-guttermarker { color: #1d75b3; }
+.cm-s-neo .CodeMirror-guttermarker-subtle { color: #e0e2e5; }
+
+.cm-s-neo .CodeMirror-cursor {
+  width: auto;
+  border: 0;
+  background: rgba(155,157,162,0.37);
+  z-index: 1;
+}
diff --git a/public/codemirror/theme/night.css b/public/codemirror/theme/night.css
new file mode 100644
index 000000000..fd4e56193
--- /dev/null
+++ b/public/codemirror/theme/night.css
@@ -0,0 +1,27 @@
+/* Loosely based on the Midnight Textmate theme */
+
+.cm-s-night.CodeMirror { background: #0a001f; color: #f8f8f8; }
+.cm-s-night div.CodeMirror-selected { background: #447; }
+.cm-s-night .CodeMirror-line::selection, .cm-s-night .CodeMirror-line > span::selection, .cm-s-night .CodeMirror-line > span > span::selection { background: rgba(68, 68, 119, .99); }
+.cm-s-night .CodeMirror-line::-moz-selection, .cm-s-night .CodeMirror-line > span::-moz-selection, .cm-s-night .CodeMirror-line > span > span::-moz-selection { background: rgba(68, 68, 119, .99); }
+.cm-s-night .CodeMirror-gutters { background: #0a001f; border-right: 1px solid #aaa; }
+.cm-s-night .CodeMirror-guttermarker { color: white; }
+.cm-s-night .CodeMirror-guttermarker-subtle { color: #bbb; }
+.cm-s-night .CodeMirror-linenumber { color: #f8f8f8; }
+.cm-s-night .CodeMirror-cursor { border-left: 1px solid white; }
+
+.cm-s-night span.cm-comment { color: #8900d1; }
+.cm-s-night span.cm-atom { color: #845dc4; }
+.cm-s-night span.cm-number, .cm-s-night span.cm-attribute { color: #ffd500; }
+.cm-s-night span.cm-keyword { color: #599eff; }
+.cm-s-night span.cm-string { color: #37f14a; }
+.cm-s-night span.cm-meta { color: #7678e2; }
+.cm-s-night span.cm-variable-2, .cm-s-night span.cm-tag { color: #99b2ff; }
+.cm-s-night span.cm-variable-3, .cm-s-night span.cm-def { color: white; }
+.cm-s-night span.cm-bracket { color: #8da6ce; }
+.cm-s-night span.cm-builtin, .cm-s-night span.cm-special { color: #ff9e59; }
+.cm-s-night span.cm-link { color: #845dc4; }
+.cm-s-night span.cm-error { color: #9d1e15; }
+
+.cm-s-night .CodeMirror-activeline-background { background: #1C005A; }
+.cm-s-night .CodeMirror-matchingbracket { outline:1px solid grey; color:white !important; }
diff --git a/public/codemirror/theme/panda-syntax.css b/public/codemirror/theme/panda-syntax.css
new file mode 100644
index 000000000..c93b2ea03
--- /dev/null
+++ b/public/codemirror/theme/panda-syntax.css
@@ -0,0 +1,85 @@
+/*
+	Name:       Panda Syntax
+	Author:     Siamak Mokhtari (http://github.com/siamak/)
+	CodeMirror template by Siamak Mokhtari (https://github.com/siamak/atom-panda-syntax)
+*/
+.cm-s-panda-syntax {
+	background: #292A2B;
+	color: #E6E6E6;
+	line-height: 1.5;
+	font-family: 'Operator Mono', 'Source Sans Pro', Menlo, Monaco, Consolas, Courier New, monospace;
+}
+.cm-s-panda-syntax .CodeMirror-cursor { border-color: #ff2c6d; }
+.cm-s-panda-syntax .CodeMirror-activeline-background {
+	background: rgba(99, 123, 156, 0.1);
+}
+.cm-s-panda-syntax .CodeMirror-selected {
+	background: #FFF;
+}
+.cm-s-panda-syntax .cm-comment {
+	font-style: italic;
+	color: #676B79;
+}
+.cm-s-panda-syntax .cm-operator {
+	color: #f3f3f3;
+}
+.cm-s-panda-syntax .cm-string {
+	color: #19F9D8;
+}
+.cm-s-panda-syntax .cm-string-2 {
+    color: #FFB86C;
+}
+
+.cm-s-panda-syntax .cm-tag {
+	color: #ff2c6d;
+}
+.cm-s-panda-syntax .cm-meta {
+	color: #b084eb;
+}
+
+.cm-s-panda-syntax .cm-number {
+	color: #FFB86C;
+}
+.cm-s-panda-syntax .cm-atom {
+	color: #ff2c6d;
+}
+.cm-s-panda-syntax .cm-keyword {
+	color: #FF75B5;
+}
+.cm-s-panda-syntax .cm-variable {
+	color: #ffb86c;
+}
+.cm-s-panda-syntax .cm-variable-2 {
+	color: #ff9ac1;
+}
+.cm-s-panda-syntax .cm-variable-3 {
+	color: #ff9ac1;
+}
+
+.cm-s-panda-syntax .cm-def {
+	color: #e6e6e6;
+}
+.cm-s-panda-syntax .cm-property {
+	color: #f3f3f3;
+}
+.cm-s-panda-syntax .cm-unit {
+    color: #ffb86c;
+}
+
+.cm-s-panda-syntax .cm-attribute {
+    color: #ffb86c;
+}
+
+.cm-s-panda-syntax .CodeMirror-matchingbracket {
+    border-bottom: 1px dotted #19F9D8;
+    padding-bottom: 2px;
+    color: #e6e6e6;
+}
+.cm-s-panda-syntax .CodeMirror-gutters {
+    background: #292a2b;
+    border-right-color: rgba(255, 255, 255, 0.1);
+}
+.cm-s-panda-syntax .CodeMirror-linenumber {
+    color: #e6e6e6;
+    opacity: 0.6;
+}
diff --git a/public/codemirror/theme/paraiso-dark.css b/public/codemirror/theme/paraiso-dark.css
new file mode 100644
index 000000000..aa9d207e6
--- /dev/null
+++ b/public/codemirror/theme/paraiso-dark.css
@@ -0,0 +1,38 @@
+/*
+
+    Name:       Paraíso (Dark)
+    Author:     Jan T. Sott
+
+    Color scheme by Jan T. Sott (https://github.com/idleberg/Paraiso-CodeMirror)
+    Inspired by the art of Rubens LP (http://www.rubenslp.com.br)
+
+*/
+
+.cm-s-paraiso-dark.CodeMirror { background: #2f1e2e; color: #b9b6b0; }
+.cm-s-paraiso-dark div.CodeMirror-selected { background: #41323f; }
+.cm-s-paraiso-dark .CodeMirror-line::selection, .cm-s-paraiso-dark .CodeMirror-line > span::selection, .cm-s-paraiso-dark .CodeMirror-line > span > span::selection { background: rgba(65, 50, 63, .99); }
+.cm-s-paraiso-dark .CodeMirror-line::-moz-selection, .cm-s-paraiso-dark .CodeMirror-line > span::-moz-selection, .cm-s-paraiso-dark .CodeMirror-line > span > span::-moz-selection { background: rgba(65, 50, 63, .99); }
+.cm-s-paraiso-dark .CodeMirror-gutters { background: #2f1e2e; border-right: 0px; }
+.cm-s-paraiso-dark .CodeMirror-guttermarker { color: #ef6155; }
+.cm-s-paraiso-dark .CodeMirror-guttermarker-subtle { color: #776e71; }
+.cm-s-paraiso-dark .CodeMirror-linenumber { color: #776e71; }
+.cm-s-paraiso-dark .CodeMirror-cursor { border-left: 1px solid #8d8687; }
+
+.cm-s-paraiso-dark span.cm-comment { color: #e96ba8; }
+.cm-s-paraiso-dark span.cm-atom { color: #815ba4; }
+.cm-s-paraiso-dark span.cm-number { color: #815ba4; }
+
+.cm-s-paraiso-dark span.cm-property, .cm-s-paraiso-dark span.cm-attribute { color: #48b685; }
+.cm-s-paraiso-dark span.cm-keyword { color: #ef6155; }
+.cm-s-paraiso-dark span.cm-string { color: #fec418; }
+
+.cm-s-paraiso-dark span.cm-variable { color: #48b685; }
+.cm-s-paraiso-dark span.cm-variable-2 { color: #06b6ef; }
+.cm-s-paraiso-dark span.cm-def { color: #f99b15; }
+.cm-s-paraiso-dark span.cm-bracket { color: #b9b6b0; }
+.cm-s-paraiso-dark span.cm-tag { color: #ef6155; }
+.cm-s-paraiso-dark span.cm-link { color: #815ba4; }
+.cm-s-paraiso-dark span.cm-error { background: #ef6155; color: #8d8687; }
+
+.cm-s-paraiso-dark .CodeMirror-activeline-background { background: #4D344A; }
+.cm-s-paraiso-dark .CodeMirror-matchingbracket { text-decoration: underline; color: white !important; }
diff --git a/public/codemirror/theme/paraiso-light.css b/public/codemirror/theme/paraiso-light.css
new file mode 100644
index 000000000..ae0c755f8
--- /dev/null
+++ b/public/codemirror/theme/paraiso-light.css
@@ -0,0 +1,38 @@
+/*
+
+    Name:       Paraíso (Light)
+    Author:     Jan T. Sott
+
+    Color scheme by Jan T. Sott (https://github.com/idleberg/Paraiso-CodeMirror)
+    Inspired by the art of Rubens LP (http://www.rubenslp.com.br)
+
+*/
+
+.cm-s-paraiso-light.CodeMirror { background: #e7e9db; color: #41323f; }
+.cm-s-paraiso-light div.CodeMirror-selected { background: #b9b6b0; }
+.cm-s-paraiso-light .CodeMirror-line::selection, .cm-s-paraiso-light .CodeMirror-line > span::selection, .cm-s-paraiso-light .CodeMirror-line > span > span::selection { background: #b9b6b0; }
+.cm-s-paraiso-light .CodeMirror-line::-moz-selection, .cm-s-paraiso-light .CodeMirror-line > span::-moz-selection, .cm-s-paraiso-light .CodeMirror-line > span > span::-moz-selection { background: #b9b6b0; }
+.cm-s-paraiso-light .CodeMirror-gutters { background: #e7e9db; border-right: 0px; }
+.cm-s-paraiso-light .CodeMirror-guttermarker { color: black; }
+.cm-s-paraiso-light .CodeMirror-guttermarker-subtle { color: #8d8687; }
+.cm-s-paraiso-light .CodeMirror-linenumber { color: #8d8687; }
+.cm-s-paraiso-light .CodeMirror-cursor { border-left: 1px solid #776e71; }
+
+.cm-s-paraiso-light span.cm-comment { color: #e96ba8; }
+.cm-s-paraiso-light span.cm-atom { color: #815ba4; }
+.cm-s-paraiso-light span.cm-number { color: #815ba4; }
+
+.cm-s-paraiso-light span.cm-property, .cm-s-paraiso-light span.cm-attribute { color: #48b685; }
+.cm-s-paraiso-light span.cm-keyword { color: #ef6155; }
+.cm-s-paraiso-light span.cm-string { color: #fec418; }
+
+.cm-s-paraiso-light span.cm-variable { color: #48b685; }
+.cm-s-paraiso-light span.cm-variable-2 { color: #06b6ef; }
+.cm-s-paraiso-light span.cm-def { color: #f99b15; }
+.cm-s-paraiso-light span.cm-bracket { color: #41323f; }
+.cm-s-paraiso-light span.cm-tag { color: #ef6155; }
+.cm-s-paraiso-light span.cm-link { color: #815ba4; }
+.cm-s-paraiso-light span.cm-error { background: #ef6155; color: #776e71; }
+
+.cm-s-paraiso-light .CodeMirror-activeline-background { background: #CFD1C4; }
+.cm-s-paraiso-light .CodeMirror-matchingbracket { text-decoration: underline; color: white !important; }
diff --git a/public/codemirror/theme/pastel-on-dark.css b/public/codemirror/theme/pastel-on-dark.css
new file mode 100644
index 000000000..2603d3620
--- /dev/null
+++ b/public/codemirror/theme/pastel-on-dark.css
@@ -0,0 +1,52 @@
+/**
+ * Pastel On Dark theme ported from ACE editor
+ * @license MIT
+ * @copyright AtomicPages LLC 2014
+ * @author Dennis Thompson, AtomicPages LLC
+ * @version 1.1
+ * @source https://github.com/atomicpages/codemirror-pastel-on-dark-theme
+ */
+
+.cm-s-pastel-on-dark.CodeMirror {
+	background: #2c2827;
+	color: #8F938F;
+	line-height: 1.5;
+}
+.cm-s-pastel-on-dark div.CodeMirror-selected { background: rgba(221,240,255,0.2); }
+.cm-s-pastel-on-dark .CodeMirror-line::selection, .cm-s-pastel-on-dark .CodeMirror-line > span::selection, .cm-s-pastel-on-dark .CodeMirror-line > span > span::selection { background: rgba(221,240,255,0.2); }
+.cm-s-pastel-on-dark .CodeMirror-line::-moz-selection, .cm-s-pastel-on-dark .CodeMirror-line > span::-moz-selection, .cm-s-pastel-on-dark .CodeMirror-line > span > span::-moz-selection { background: rgba(221,240,255,0.2); }
+
+.cm-s-pastel-on-dark .CodeMirror-gutters {
+	background: #34302f;
+	border-right: 0px;
+	padding: 0 3px;
+}
+.cm-s-pastel-on-dark .CodeMirror-guttermarker { color: white; }
+.cm-s-pastel-on-dark .CodeMirror-guttermarker-subtle { color: #8F938F; }
+.cm-s-pastel-on-dark .CodeMirror-linenumber { color: #8F938F; }
+.cm-s-pastel-on-dark .CodeMirror-cursor { border-left: 1px solid #A7A7A7; }
+.cm-s-pastel-on-dark span.cm-comment { color: #A6C6FF; }
+.cm-s-pastel-on-dark span.cm-atom { color: #DE8E30; }
+.cm-s-pastel-on-dark span.cm-number { color: #CCCCCC; }
+.cm-s-pastel-on-dark span.cm-property { color: #8F938F; }
+.cm-s-pastel-on-dark span.cm-attribute { color: #a6e22e; }
+.cm-s-pastel-on-dark span.cm-keyword { color: #AEB2F8; }
+.cm-s-pastel-on-dark span.cm-string { color: #66A968; }
+.cm-s-pastel-on-dark span.cm-variable { color: #AEB2F8; }
+.cm-s-pastel-on-dark span.cm-variable-2 { color: #BEBF55; }
+.cm-s-pastel-on-dark span.cm-variable-3 { color: #DE8E30; }
+.cm-s-pastel-on-dark span.cm-def { color: #757aD8; }
+.cm-s-pastel-on-dark span.cm-bracket { color: #f8f8f2; }
+.cm-s-pastel-on-dark span.cm-tag { color: #C1C144; }
+.cm-s-pastel-on-dark span.cm-link { color: #ae81ff; }
+.cm-s-pastel-on-dark span.cm-qualifier,.cm-s-pastel-on-dark span.cm-builtin { color: #C1C144; }
+.cm-s-pastel-on-dark span.cm-error {
+	background: #757aD8;
+	color: #f8f8f0;
+}
+.cm-s-pastel-on-dark .CodeMirror-activeline-background { background: rgba(255, 255, 255, 0.031); }
+.cm-s-pastel-on-dark .CodeMirror-matchingbracket {
+	border: 1px solid rgba(255,255,255,0.25);
+	color: #8F938F !important;
+	margin: -1px -1px 0 -1px;
+}
diff --git a/public/codemirror/theme/railscasts.css b/public/codemirror/theme/railscasts.css
new file mode 100644
index 000000000..aeff0449d
--- /dev/null
+++ b/public/codemirror/theme/railscasts.css
@@ -0,0 +1,34 @@
+/*
+
+    Name:       Railscasts
+    Author:     Ryan Bates (http://railscasts.com)
+
+    CodeMirror template by Jan T. Sott (https://github.com/idleberg/base16-codemirror)
+    Original Base16 color scheme by Chris Kempson (https://github.com/chriskempson/base16)
+
+*/
+
+.cm-s-railscasts.CodeMirror {background: #2b2b2b; color: #f4f1ed;}
+.cm-s-railscasts div.CodeMirror-selected {background: #272935 !important;}
+.cm-s-railscasts .CodeMirror-gutters {background: #2b2b2b; border-right: 0px;}
+.cm-s-railscasts .CodeMirror-linenumber {color: #5a647e;}
+.cm-s-railscasts .CodeMirror-cursor {border-left: 1px solid #d4cfc9 !important;}
+
+.cm-s-railscasts span.cm-comment {color: #bc9458;}
+.cm-s-railscasts span.cm-atom {color: #b6b3eb;}
+.cm-s-railscasts span.cm-number {color: #b6b3eb;}
+
+.cm-s-railscasts span.cm-property, .cm-s-railscasts span.cm-attribute {color: #a5c261;}
+.cm-s-railscasts span.cm-keyword {color: #da4939;}
+.cm-s-railscasts span.cm-string {color: #ffc66d;}
+
+.cm-s-railscasts span.cm-variable {color: #a5c261;}
+.cm-s-railscasts span.cm-variable-2 {color: #6d9cbe;}
+.cm-s-railscasts span.cm-def {color: #cc7833;}
+.cm-s-railscasts span.cm-error {background: #da4939; color: #d4cfc9;}
+.cm-s-railscasts span.cm-bracket {color: #f4f1ed;}
+.cm-s-railscasts span.cm-tag {color: #da4939;}
+.cm-s-railscasts span.cm-link {color: #b6b3eb;}
+
+.cm-s-railscasts .CodeMirror-matchingbracket { text-decoration: underline; color: white !important;}
+.cm-s-railscasts .CodeMirror-activeline-background { background: #303040; }
diff --git a/public/codemirror/theme/rubyblue.css b/public/codemirror/theme/rubyblue.css
new file mode 100644
index 000000000..76d33e779
--- /dev/null
+++ b/public/codemirror/theme/rubyblue.css
@@ -0,0 +1,25 @@
+.cm-s-rubyblue.CodeMirror { background: #112435; color: white; }
+.cm-s-rubyblue div.CodeMirror-selected { background: #38566F; }
+.cm-s-rubyblue .CodeMirror-line::selection, .cm-s-rubyblue .CodeMirror-line > span::selection, .cm-s-rubyblue .CodeMirror-line > span > span::selection { background: rgba(56, 86, 111, 0.99); }
+.cm-s-rubyblue .CodeMirror-line::-moz-selection, .cm-s-rubyblue .CodeMirror-line > span::-moz-selection, .cm-s-rubyblue .CodeMirror-line > span > span::-moz-selection { background: rgba(56, 86, 111, 0.99); }
+.cm-s-rubyblue .CodeMirror-gutters { background: #1F4661; border-right: 7px solid #3E7087; }
+.cm-s-rubyblue .CodeMirror-guttermarker { color: white; }
+.cm-s-rubyblue .CodeMirror-guttermarker-subtle { color: #3E7087; }
+.cm-s-rubyblue .CodeMirror-linenumber { color: white; }
+.cm-s-rubyblue .CodeMirror-cursor { border-left: 1px solid white; }
+
+.cm-s-rubyblue span.cm-comment { color: #999; font-style:italic; line-height: 1em; }
+.cm-s-rubyblue span.cm-atom { color: #F4C20B; }
+.cm-s-rubyblue span.cm-number, .cm-s-rubyblue span.cm-attribute { color: #82C6E0; }
+.cm-s-rubyblue span.cm-keyword { color: #F0F; }
+.cm-s-rubyblue span.cm-string { color: #F08047; }
+.cm-s-rubyblue span.cm-meta { color: #F0F; }
+.cm-s-rubyblue span.cm-variable-2, .cm-s-rubyblue span.cm-tag { color: #7BD827; }
+.cm-s-rubyblue span.cm-variable-3, .cm-s-rubyblue span.cm-def { color: white; }
+.cm-s-rubyblue span.cm-bracket { color: #F0F; }
+.cm-s-rubyblue span.cm-link { color: #F4C20B; }
+.cm-s-rubyblue span.CodeMirror-matchingbracket { color:#F0F !important; }
+.cm-s-rubyblue span.cm-builtin, .cm-s-rubyblue span.cm-special { color: #FF9D00; }
+.cm-s-rubyblue span.cm-error { color: #AF2018; }
+
+.cm-s-rubyblue .CodeMirror-activeline-background { background: #173047; }
diff --git a/public/codemirror/theme/seti.css b/public/codemirror/theme/seti.css
new file mode 100644
index 000000000..6632d3fc7
--- /dev/null
+++ b/public/codemirror/theme/seti.css
@@ -0,0 +1,44 @@
+/*
+
+    Name:       seti
+    Author:     Michael Kaminsky (http://github.com/mkaminsky11)
+
+    Original seti color scheme by Jesse Weed (https://github.com/jesseweed/seti-syntax)
+
+*/
+
+
+.cm-s-seti.CodeMirror {
+  background-color: #151718 !important;
+  color: #CFD2D1 !important;
+  border: none;
+}
+.cm-s-seti .CodeMirror-gutters {
+  color: #404b53;
+  background-color: #0E1112;
+  border: none;
+}
+.cm-s-seti .CodeMirror-cursor { border-left: solid thin #f8f8f0; }
+.cm-s-seti .CodeMirror-linenumber { color: #6D8A88; }
+.cm-s-seti.CodeMirror-focused div.CodeMirror-selected { background: rgba(255, 255, 255, 0.10); }
+.cm-s-seti .CodeMirror-line::selection, .cm-s-seti .CodeMirror-line > span::selection, .cm-s-seti .CodeMirror-line > span > span::selection { background: rgba(255, 255, 255, 0.10); }
+.cm-s-seti .CodeMirror-line::-moz-selection, .cm-s-seti .CodeMirror-line > span::-moz-selection, .cm-s-seti .CodeMirror-line > span > span::-moz-selection { background: rgba(255, 255, 255, 0.10); }
+.cm-s-seti span.cm-comment { color: #41535b; }
+.cm-s-seti span.cm-string, .cm-s-seti span.cm-string-2 { color: #55b5db; }
+.cm-s-seti span.cm-number { color: #cd3f45; }
+.cm-s-seti span.cm-variable { color: #55b5db; }
+.cm-s-seti span.cm-variable-2 { color: #a074c4; }
+.cm-s-seti span.cm-def { color: #55b5db; }
+.cm-s-seti span.cm-keyword { color: #ff79c6; }
+.cm-s-seti span.cm-operator { color: #9fca56; }
+.cm-s-seti span.cm-keyword { color: #e6cd69; }
+.cm-s-seti span.cm-atom { color: #cd3f45; }
+.cm-s-seti span.cm-meta { color: #55b5db; }
+.cm-s-seti span.cm-tag { color: #55b5db; }
+.cm-s-seti span.cm-attribute { color: #9fca56; }
+.cm-s-seti span.cm-qualifier { color: #9fca56; }
+.cm-s-seti span.cm-property { color: #a074c4; }
+.cm-s-seti span.cm-variable-3 { color: #9fca56; }
+.cm-s-seti span.cm-builtin { color: #9fca56; }
+.cm-s-seti .CodeMirror-activeline-background { background: #101213; }
+.cm-s-seti .CodeMirror-matchingbracket { text-decoration: underline; color: white !important; }
diff --git a/public/codemirror/theme/solarized.css b/public/codemirror/theme/solarized.css
new file mode 100644
index 000000000..1f39c7edb
--- /dev/null
+++ b/public/codemirror/theme/solarized.css
@@ -0,0 +1,169 @@
+/*
+Solarized theme for code-mirror
+http://ethanschoonover.com/solarized
+*/
+
+/*
+Solarized color palette
+http://ethanschoonover.com/solarized/img/solarized-palette.png
+*/
+
+.solarized.base03 { color: #002b36; }
+.solarized.base02 { color: #073642; }
+.solarized.base01 { color: #586e75; }
+.solarized.base00 { color: #657b83; }
+.solarized.base0 { color: #839496; }
+.solarized.base1 { color: #93a1a1; }
+.solarized.base2 { color: #eee8d5; }
+.solarized.base3  { color: #fdf6e3; }
+.solarized.solar-yellow  { color: #b58900; }
+.solarized.solar-orange  { color: #cb4b16; }
+.solarized.solar-red { color: #dc322f; }
+.solarized.solar-magenta { color: #d33682; }
+.solarized.solar-violet  { color: #6c71c4; }
+.solarized.solar-blue { color: #268bd2; }
+.solarized.solar-cyan { color: #2aa198; }
+.solarized.solar-green { color: #859900; }
+
+/* Color scheme for code-mirror */
+
+.cm-s-solarized {
+  line-height: 1.45em;
+  color-profile: sRGB;
+  rendering-intent: auto;
+}
+.cm-s-solarized.cm-s-dark {
+  color: #839496;
+  background-color: #002b36;
+  text-shadow: #002b36 0 1px;
+}
+.cm-s-solarized.cm-s-light {
+  background-color: #fdf6e3;
+  color: #657b83;
+  text-shadow: #eee8d5 0 1px;
+}
+
+.cm-s-solarized .CodeMirror-widget {
+  text-shadow: none;
+}
+
+.cm-s-solarized .cm-header { color: #586e75; }
+.cm-s-solarized .cm-quote { color: #93a1a1; }
+
+.cm-s-solarized .cm-keyword { color: #cb4b16; }
+.cm-s-solarized .cm-atom { color: #d33682; }
+.cm-s-solarized .cm-number { color: #d33682; }
+.cm-s-solarized .cm-def { color: #2aa198; }
+
+.cm-s-solarized .cm-variable { color: #839496; }
+.cm-s-solarized .cm-variable-2 { color: #b58900; }
+.cm-s-solarized .cm-variable-3 { color: #6c71c4; }
+
+.cm-s-solarized .cm-property { color: #2aa198; }
+.cm-s-solarized .cm-operator { color: #6c71c4; }
+
+.cm-s-solarized .cm-comment { color: #586e75; font-style:italic; }
+
+.cm-s-solarized .cm-string { color: #859900; }
+.cm-s-solarized .cm-string-2 { color: #b58900; }
+
+.cm-s-solarized .cm-meta { color: #859900; }
+.cm-s-solarized .cm-qualifier { color: #b58900; }
+.cm-s-solarized .cm-builtin { color: #d33682; }
+.cm-s-solarized .cm-bracket { color: #cb4b16; }
+.cm-s-solarized .CodeMirror-matchingbracket { color: #859900; }
+.cm-s-solarized .CodeMirror-nonmatchingbracket { color: #dc322f; }
+.cm-s-solarized .cm-tag { color: #93a1a1; }
+.cm-s-solarized .cm-attribute { color: #2aa198; }
+.cm-s-solarized .cm-hr {
+  color: transparent;
+  border-top: 1px solid #586e75;
+  display: block;
+}
+.cm-s-solarized .cm-link { color: #93a1a1; cursor: pointer; }
+.cm-s-solarized .cm-special { color: #6c71c4; }
+.cm-s-solarized .cm-em {
+  color: #999;
+  text-decoration: underline;
+  text-decoration-style: dotted;
+}
+.cm-s-solarized .cm-strong { color: #eee; }
+.cm-s-solarized .cm-error,
+.cm-s-solarized .cm-invalidchar {
+  color: #586e75;
+  border-bottom: 1px dotted #dc322f;
+}
+
+.cm-s-solarized.cm-s-dark div.CodeMirror-selected { background: #073642; }
+.cm-s-solarized.cm-s-dark.CodeMirror ::selection { background: rgba(7, 54, 66, 0.99); }
+.cm-s-solarized.cm-s-dark .CodeMirror-line::-moz-selection, .cm-s-dark .CodeMirror-line > span::-moz-selection, .cm-s-dark .CodeMirror-line > span > span::-moz-selection { background: rgba(7, 54, 66, 0.99); }
+
+.cm-s-solarized.cm-s-light div.CodeMirror-selected { background: #eee8d5; }
+.cm-s-solarized.cm-s-light .CodeMirror-line::selection, .cm-s-light .CodeMirror-line > span::selection, .cm-s-light .CodeMirror-line > span > span::selection { background: #eee8d5; }
+.cm-s-solarized.cm-s-light .CodeMirror-line::-moz-selection, .cm-s-ligh .CodeMirror-line > span::-moz-selection, .cm-s-ligh .CodeMirror-line > span > span::-moz-selection { background: #eee8d5; }
+
+/* Editor styling */
+
+
+
+/* Little shadow on the view-port of the buffer view */
+.cm-s-solarized.CodeMirror {
+  -moz-box-shadow: inset 7px 0 12px -6px #000;
+  -webkit-box-shadow: inset 7px 0 12px -6px #000;
+  box-shadow: inset 7px 0 12px -6px #000;
+}
+
+/* Remove gutter border */
+.cm-s-solarized .CodeMirror-gutters {
+  border-right: 0;
+}
+
+/* Gutter colors and line number styling based of color scheme (dark / light) */
+
+/* Dark */
+.cm-s-solarized.cm-s-dark .CodeMirror-gutters {
+  background-color: #073642;
+}
+
+.cm-s-solarized.cm-s-dark .CodeMirror-linenumber {
+  color: #586e75;
+  text-shadow: #021014 0 -1px;
+}
+
+/* Light */
+.cm-s-solarized.cm-s-light .CodeMirror-gutters {
+  background-color: #eee8d5;
+}
+
+.cm-s-solarized.cm-s-light .CodeMirror-linenumber {
+  color: #839496;
+}
+
+/* Common */
+.cm-s-solarized .CodeMirror-linenumber {
+  padding: 0 5px;
+}
+.cm-s-solarized .CodeMirror-guttermarker-subtle { color: #586e75; }
+.cm-s-solarized.cm-s-dark .CodeMirror-guttermarker { color: #ddd; }
+.cm-s-solarized.cm-s-light .CodeMirror-guttermarker { color: #cb4b16; }
+
+.cm-s-solarized .CodeMirror-gutter .CodeMirror-gutter-text {
+  color: #586e75;
+}
+
+/* Cursor */
+.cm-s-solarized .CodeMirror-cursor { border-left: 1px solid #819090; }
+
+/* Fat cursor */
+.cm-s-solarized.cm-s-light.cm-fat-cursor .CodeMirror-cursor { background: #77ee77; }
+.cm-s-solarized.cm-s-light .cm-animate-fat-cursor { background-color: #77ee77; }
+.cm-s-solarized.cm-s-dark.cm-fat-cursor .CodeMirror-cursor { background: #586e75; }
+.cm-s-solarized.cm-s-dark .cm-animate-fat-cursor { background-color: #586e75; }
+
+/* Active line */
+.cm-s-solarized.cm-s-dark .CodeMirror-activeline-background {
+  background: rgba(255, 255, 255, 0.06);
+}
+.cm-s-solarized.cm-s-light .CodeMirror-activeline-background {
+  background: rgba(0, 0, 0, 0.06);
+}
diff --git a/public/codemirror/theme/the-matrix.css b/public/codemirror/theme/the-matrix.css
new file mode 100644
index 000000000..3912a8dbd
--- /dev/null
+++ b/public/codemirror/theme/the-matrix.css
@@ -0,0 +1,30 @@
+.cm-s-the-matrix.CodeMirror { background: #000000; color: #00FF00; }
+.cm-s-the-matrix div.CodeMirror-selected { background: #2D2D2D; }
+.cm-s-the-matrix .CodeMirror-line::selection, .cm-s-the-matrix .CodeMirror-line > span::selection, .cm-s-the-matrix .CodeMirror-line > span > span::selection { background: rgba(45, 45, 45, 0.99); }
+.cm-s-the-matrix .CodeMirror-line::-moz-selection, .cm-s-the-matrix .CodeMirror-line > span::-moz-selection, .cm-s-the-matrix .CodeMirror-line > span > span::-moz-selection { background: rgba(45, 45, 45, 0.99); }
+.cm-s-the-matrix .CodeMirror-gutters { background: #060; border-right: 2px solid #00FF00; }
+.cm-s-the-matrix .CodeMirror-guttermarker { color: #0f0; }
+.cm-s-the-matrix .CodeMirror-guttermarker-subtle { color: white; }
+.cm-s-the-matrix .CodeMirror-linenumber { color: #FFFFFF; }
+.cm-s-the-matrix .CodeMirror-cursor { border-left: 1px solid #00FF00; }
+
+.cm-s-the-matrix span.cm-keyword { color: #008803; font-weight: bold; }
+.cm-s-the-matrix span.cm-atom { color: #3FF; }
+.cm-s-the-matrix span.cm-number { color: #FFB94F; }
+.cm-s-the-matrix span.cm-def { color: #99C; }
+.cm-s-the-matrix span.cm-variable { color: #F6C; }
+.cm-s-the-matrix span.cm-variable-2 { color: #C6F; }
+.cm-s-the-matrix span.cm-variable-3 { color: #96F; }
+.cm-s-the-matrix span.cm-property { color: #62FFA0; }
+.cm-s-the-matrix span.cm-operator { color: #999; }
+.cm-s-the-matrix span.cm-comment { color: #CCCCCC; }
+.cm-s-the-matrix span.cm-string { color: #39C; }
+.cm-s-the-matrix span.cm-meta { color: #C9F; }
+.cm-s-the-matrix span.cm-qualifier { color: #FFF700; }
+.cm-s-the-matrix span.cm-builtin { color: #30a; }
+.cm-s-the-matrix span.cm-bracket { color: #cc7; }
+.cm-s-the-matrix span.cm-tag { color: #FFBD40; }
+.cm-s-the-matrix span.cm-attribute { color: #FFF700; }
+.cm-s-the-matrix span.cm-error { color: #FF0000; }
+
+.cm-s-the-matrix .CodeMirror-activeline-background { background: #040; }
diff --git a/public/codemirror/theme/tomorrow-night-bright.css b/public/codemirror/theme/tomorrow-night-bright.css
new file mode 100644
index 000000000..b6dd4a927
--- /dev/null
+++ b/public/codemirror/theme/tomorrow-night-bright.css
@@ -0,0 +1,35 @@
+/*
+
+    Name:       Tomorrow Night - Bright
+    Author:     Chris Kempson
+
+    Port done by Gerard Braad 
+
+*/
+
+.cm-s-tomorrow-night-bright.CodeMirror { background: #000000; color: #eaeaea; }
+.cm-s-tomorrow-night-bright div.CodeMirror-selected { background: #424242; }
+.cm-s-tomorrow-night-bright .CodeMirror-gutters { background: #000000; border-right: 0px; }
+.cm-s-tomorrow-night-bright .CodeMirror-guttermarker { color: #e78c45; }
+.cm-s-tomorrow-night-bright .CodeMirror-guttermarker-subtle { color: #777; }
+.cm-s-tomorrow-night-bright .CodeMirror-linenumber { color: #424242; }
+.cm-s-tomorrow-night-bright .CodeMirror-cursor { border-left: 1px solid #6A6A6A; }
+
+.cm-s-tomorrow-night-bright span.cm-comment { color: #d27b53; }
+.cm-s-tomorrow-night-bright span.cm-atom { color: #a16a94; }
+.cm-s-tomorrow-night-bright span.cm-number { color: #a16a94; }
+
+.cm-s-tomorrow-night-bright span.cm-property, .cm-s-tomorrow-night-bright span.cm-attribute { color: #99cc99; }
+.cm-s-tomorrow-night-bright span.cm-keyword { color: #d54e53; }
+.cm-s-tomorrow-night-bright span.cm-string { color: #e7c547; }
+
+.cm-s-tomorrow-night-bright span.cm-variable { color: #b9ca4a; }
+.cm-s-tomorrow-night-bright span.cm-variable-2 { color: #7aa6da; }
+.cm-s-tomorrow-night-bright span.cm-def { color: #e78c45; }
+.cm-s-tomorrow-night-bright span.cm-bracket { color: #eaeaea; }
+.cm-s-tomorrow-night-bright span.cm-tag { color: #d54e53; }
+.cm-s-tomorrow-night-bright span.cm-link { color: #a16a94; }
+.cm-s-tomorrow-night-bright span.cm-error { background: #d54e53; color: #6A6A6A; }
+
+.cm-s-tomorrow-night-bright .CodeMirror-activeline-background { background: #2a2a2a; }
+.cm-s-tomorrow-night-bright .CodeMirror-matchingbracket { text-decoration: underline; color: white !important; }
diff --git a/public/codemirror/theme/tomorrow-night-eighties.css b/public/codemirror/theme/tomorrow-night-eighties.css
new file mode 100644
index 000000000..2a9debc32
--- /dev/null
+++ b/public/codemirror/theme/tomorrow-night-eighties.css
@@ -0,0 +1,38 @@
+/*
+
+    Name:       Tomorrow Night - Eighties
+    Author:     Chris Kempson
+
+    CodeMirror template by Jan T. Sott (https://github.com/idleberg/base16-codemirror)
+    Original Base16 color scheme by Chris Kempson (https://github.com/chriskempson/base16)
+
+*/
+
+.cm-s-tomorrow-night-eighties.CodeMirror { background: #000000; color: #CCCCCC; }
+.cm-s-tomorrow-night-eighties div.CodeMirror-selected { background: #2D2D2D; }
+.cm-s-tomorrow-night-eighties .CodeMirror-line::selection, .cm-s-tomorrow-night-eighties .CodeMirror-line > span::selection, .cm-s-tomorrow-night-eighties .CodeMirror-line > span > span::selection { background: rgba(45, 45, 45, 0.99); }
+.cm-s-tomorrow-night-eighties .CodeMirror-line::-moz-selection, .cm-s-tomorrow-night-eighties .CodeMirror-line > span::-moz-selection, .cm-s-tomorrow-night-eighties .CodeMirror-line > span > span::-moz-selection { background: rgba(45, 45, 45, 0.99); }
+.cm-s-tomorrow-night-eighties .CodeMirror-gutters { background: #000000; border-right: 0px; }
+.cm-s-tomorrow-night-eighties .CodeMirror-guttermarker { color: #f2777a; }
+.cm-s-tomorrow-night-eighties .CodeMirror-guttermarker-subtle { color: #777; }
+.cm-s-tomorrow-night-eighties .CodeMirror-linenumber { color: #515151; }
+.cm-s-tomorrow-night-eighties .CodeMirror-cursor { border-left: 1px solid #6A6A6A; }
+
+.cm-s-tomorrow-night-eighties span.cm-comment { color: #d27b53; }
+.cm-s-tomorrow-night-eighties span.cm-atom { color: #a16a94; }
+.cm-s-tomorrow-night-eighties span.cm-number { color: #a16a94; }
+
+.cm-s-tomorrow-night-eighties span.cm-property, .cm-s-tomorrow-night-eighties span.cm-attribute { color: #99cc99; }
+.cm-s-tomorrow-night-eighties span.cm-keyword { color: #f2777a; }
+.cm-s-tomorrow-night-eighties span.cm-string { color: #ffcc66; }
+
+.cm-s-tomorrow-night-eighties span.cm-variable { color: #99cc99; }
+.cm-s-tomorrow-night-eighties span.cm-variable-2 { color: #6699cc; }
+.cm-s-tomorrow-night-eighties span.cm-def { color: #f99157; }
+.cm-s-tomorrow-night-eighties span.cm-bracket { color: #CCCCCC; }
+.cm-s-tomorrow-night-eighties span.cm-tag { color: #f2777a; }
+.cm-s-tomorrow-night-eighties span.cm-link { color: #a16a94; }
+.cm-s-tomorrow-night-eighties span.cm-error { background: #f2777a; color: #6A6A6A; }
+
+.cm-s-tomorrow-night-eighties .CodeMirror-activeline-background { background: #343600; }
+.cm-s-tomorrow-night-eighties .CodeMirror-matchingbracket { text-decoration: underline; color: white !important; }
diff --git a/public/codemirror/theme/ttcn.css b/public/codemirror/theme/ttcn.css
new file mode 100644
index 000000000..b3d465645
--- /dev/null
+++ b/public/codemirror/theme/ttcn.css
@@ -0,0 +1,64 @@
+.cm-s-ttcn .cm-quote { color: #090; }
+.cm-s-ttcn .cm-negative { color: #d44; }
+.cm-s-ttcn .cm-positive { color: #292; }
+.cm-s-ttcn .cm-header, .cm-strong { font-weight: bold; }
+.cm-s-ttcn .cm-em { font-style: italic; }
+.cm-s-ttcn .cm-link { text-decoration: underline; }
+.cm-s-ttcn .cm-strikethrough { text-decoration: line-through; }
+.cm-s-ttcn .cm-header { color: #00f; font-weight: bold; }
+
+.cm-s-ttcn .cm-atom { color: #219; }
+.cm-s-ttcn .cm-attribute { color: #00c; }
+.cm-s-ttcn .cm-bracket { color: #997; }
+.cm-s-ttcn .cm-comment { color: #333333; }
+.cm-s-ttcn .cm-def { color: #00f; }
+.cm-s-ttcn .cm-em { font-style: italic; }
+.cm-s-ttcn .cm-error { color: #f00; }
+.cm-s-ttcn .cm-hr { color: #999; }
+.cm-s-ttcn .cm-invalidchar { color: #f00; }
+.cm-s-ttcn .cm-keyword { font-weight:bold; }
+.cm-s-ttcn .cm-link { color: #00c; text-decoration: underline; }
+.cm-s-ttcn .cm-meta { color: #555; }
+.cm-s-ttcn .cm-negative { color: #d44; }
+.cm-s-ttcn .cm-positive { color: #292; }
+.cm-s-ttcn .cm-qualifier { color: #555; }
+.cm-s-ttcn .cm-strikethrough { text-decoration: line-through; }
+.cm-s-ttcn .cm-string { color: #006400; }
+.cm-s-ttcn .cm-string-2 { color: #f50; }
+.cm-s-ttcn .cm-strong { font-weight: bold; }
+.cm-s-ttcn .cm-tag { color: #170; }
+.cm-s-ttcn .cm-variable { color: #8B2252; }
+.cm-s-ttcn .cm-variable-2 { color: #05a; }
+.cm-s-ttcn .cm-variable-3 { color: #085; }
+
+.cm-s-ttcn .cm-invalidchar { color: #f00; }
+
+/* ASN */
+.cm-s-ttcn .cm-accessTypes,
+.cm-s-ttcn .cm-compareTypes { color: #27408B; }
+.cm-s-ttcn .cm-cmipVerbs { color: #8B2252; }
+.cm-s-ttcn .cm-modifier { color:#D2691E; }
+.cm-s-ttcn .cm-status { color:#8B4545; }
+.cm-s-ttcn .cm-storage { color:#A020F0; }
+.cm-s-ttcn .cm-tags { color:#006400; }
+
+/* CFG */
+.cm-s-ttcn .cm-externalCommands { color: #8B4545; font-weight:bold; }
+.cm-s-ttcn .cm-fileNCtrlMaskOptions,
+.cm-s-ttcn .cm-sectionTitle { color: #2E8B57; font-weight:bold; }
+
+/* TTCN */
+.cm-s-ttcn .cm-booleanConsts,
+.cm-s-ttcn .cm-otherConsts,
+.cm-s-ttcn .cm-verdictConsts { color: #006400; }
+.cm-s-ttcn .cm-configOps,
+.cm-s-ttcn .cm-functionOps,
+.cm-s-ttcn .cm-portOps,
+.cm-s-ttcn .cm-sutOps,
+.cm-s-ttcn .cm-timerOps,
+.cm-s-ttcn .cm-verdictOps { color: #0000FF; }
+.cm-s-ttcn .cm-preprocessor,
+.cm-s-ttcn .cm-templateMatch,
+.cm-s-ttcn .cm-ttcn3Macros { color: #27408B; }
+.cm-s-ttcn .cm-types { color: #A52A2A; font-weight:bold; }
+.cm-s-ttcn .cm-visibilityModifiers { font-weight:bold; }
diff --git a/public/codemirror/theme/twilight.css b/public/codemirror/theme/twilight.css
new file mode 100644
index 000000000..d342b899f
--- /dev/null
+++ b/public/codemirror/theme/twilight.css
@@ -0,0 +1,32 @@
+.cm-s-twilight.CodeMirror { background: #141414; color: #f7f7f7; } /**/
+.cm-s-twilight div.CodeMirror-selected { background: #323232; } /**/
+.cm-s-twilight .CodeMirror-line::selection, .cm-s-twilight .CodeMirror-line > span::selection, .cm-s-twilight .CodeMirror-line > span > span::selection { background: rgba(50, 50, 50, 0.99); }
+.cm-s-twilight .CodeMirror-line::-moz-selection, .cm-s-twilight .CodeMirror-line > span::-moz-selection, .cm-s-twilight .CodeMirror-line > span > span::-moz-selection { background: rgba(50, 50, 50, 0.99); }
+
+.cm-s-twilight .CodeMirror-gutters { background: #222; border-right: 1px solid #aaa; }
+.cm-s-twilight .CodeMirror-guttermarker { color: white; }
+.cm-s-twilight .CodeMirror-guttermarker-subtle { color: #aaa; }
+.cm-s-twilight .CodeMirror-linenumber { color: #aaa; }
+.cm-s-twilight .CodeMirror-cursor { border-left: 1px solid white; }
+
+.cm-s-twilight .cm-keyword { color: #f9ee98; } /**/
+.cm-s-twilight .cm-atom { color: #FC0; }
+.cm-s-twilight .cm-number { color:  #ca7841; } /**/
+.cm-s-twilight .cm-def { color: #8DA6CE; }
+.cm-s-twilight span.cm-variable-2, .cm-s-twilight span.cm-tag { color: #607392; } /**/
+.cm-s-twilight span.cm-variable-3, .cm-s-twilight span.cm-def { color: #607392; } /**/
+.cm-s-twilight .cm-operator { color: #cda869; } /**/
+.cm-s-twilight .cm-comment { color:#777; font-style:italic; font-weight:normal; } /**/
+.cm-s-twilight .cm-string { color:#8f9d6a; font-style:italic; } /**/
+.cm-s-twilight .cm-string-2 { color:#bd6b18; } /*?*/
+.cm-s-twilight .cm-meta { background-color:#141414; color:#f7f7f7; } /*?*/
+.cm-s-twilight .cm-builtin { color: #cda869; } /*?*/
+.cm-s-twilight .cm-tag { color: #997643; } /**/
+.cm-s-twilight .cm-attribute { color: #d6bb6d; } /*?*/
+.cm-s-twilight .cm-header { color: #FF6400; }
+.cm-s-twilight .cm-hr { color: #AEAEAE; }
+.cm-s-twilight .cm-link { color:#ad9361; font-style:italic; text-decoration:none; } /**/
+.cm-s-twilight .cm-error { border-bottom: 1px solid red; }
+
+.cm-s-twilight .CodeMirror-activeline-background { background: #27282E; }
+.cm-s-twilight .CodeMirror-matchingbracket { outline:1px solid grey; color:white !important; }
diff --git a/public/codemirror/theme/vibrant-ink.css b/public/codemirror/theme/vibrant-ink.css
new file mode 100644
index 000000000..ac4ec6d87
--- /dev/null
+++ b/public/codemirror/theme/vibrant-ink.css
@@ -0,0 +1,34 @@
+/* Taken from the popular Visual Studio Vibrant Ink Schema */
+
+.cm-s-vibrant-ink.CodeMirror { background: black; color: white; }
+.cm-s-vibrant-ink div.CodeMirror-selected { background: #35493c; }
+.cm-s-vibrant-ink .CodeMirror-line::selection, .cm-s-vibrant-ink .CodeMirror-line > span::selection, .cm-s-vibrant-ink .CodeMirror-line > span > span::selection { background: rgba(53, 73, 60, 0.99); }
+.cm-s-vibrant-ink .CodeMirror-line::-moz-selection, .cm-s-vibrant-ink .CodeMirror-line > span::-moz-selection, .cm-s-vibrant-ink .CodeMirror-line > span > span::-moz-selection { background: rgba(53, 73, 60, 0.99); }
+
+.cm-s-vibrant-ink .CodeMirror-gutters { background: #002240; border-right: 1px solid #aaa; }
+.cm-s-vibrant-ink .CodeMirror-guttermarker { color: white; }
+.cm-s-vibrant-ink .CodeMirror-guttermarker-subtle { color: #d0d0d0; }
+.cm-s-vibrant-ink .CodeMirror-linenumber { color: #d0d0d0; }
+.cm-s-vibrant-ink .CodeMirror-cursor { border-left: 1px solid white; }
+
+.cm-s-vibrant-ink .cm-keyword { color: #CC7832; }
+.cm-s-vibrant-ink .cm-atom { color: #FC0; }
+.cm-s-vibrant-ink .cm-number { color:  #FFEE98; }
+.cm-s-vibrant-ink .cm-def { color: #8DA6CE; }
+.cm-s-vibrant-ink span.cm-variable-2, .cm-s-vibrant span.cm-tag { color: #FFC66D; }
+.cm-s-vibrant-ink span.cm-variable-3, .cm-s-vibrant span.cm-def { color: #FFC66D; }
+.cm-s-vibrant-ink .cm-operator { color: #888; }
+.cm-s-vibrant-ink .cm-comment { color: gray; font-weight: bold; }
+.cm-s-vibrant-ink .cm-string { color:  #A5C25C; }
+.cm-s-vibrant-ink .cm-string-2 { color: red; }
+.cm-s-vibrant-ink .cm-meta { color: #D8FA3C; }
+.cm-s-vibrant-ink .cm-builtin { color: #8DA6CE; }
+.cm-s-vibrant-ink .cm-tag { color: #8DA6CE; }
+.cm-s-vibrant-ink .cm-attribute { color: #8DA6CE; }
+.cm-s-vibrant-ink .cm-header { color: #FF6400; }
+.cm-s-vibrant-ink .cm-hr { color: #AEAEAE; }
+.cm-s-vibrant-ink .cm-link { color: blue; }
+.cm-s-vibrant-ink .cm-error { border-bottom: 1px solid red; }
+
+.cm-s-vibrant-ink .CodeMirror-activeline-background { background: #27282E; }
+.cm-s-vibrant-ink .CodeMirror-matchingbracket { outline:1px solid grey; color:white !important; }
diff --git a/public/codemirror/theme/xq-dark.css b/public/codemirror/theme/xq-dark.css
new file mode 100644
index 000000000..e3bd960bb
--- /dev/null
+++ b/public/codemirror/theme/xq-dark.css
@@ -0,0 +1,53 @@
+/*
+Copyright (C) 2011 by MarkLogic Corporation
+Author: Mike Brevoort 
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+.cm-s-xq-dark.CodeMirror { background: #0a001f; color: #f8f8f8; }
+.cm-s-xq-dark div.CodeMirror-selected { background: #27007A; }
+.cm-s-xq-dark .CodeMirror-line::selection, .cm-s-xq-dark .CodeMirror-line > span::selection, .cm-s-xq-dark .CodeMirror-line > span > span::selection { background: rgba(39, 0, 122, 0.99); }
+.cm-s-xq-dark .CodeMirror-line::-moz-selection, .cm-s-xq-dark .CodeMirror-line > span::-moz-selection, .cm-s-xq-dark .CodeMirror-line > span > span::-moz-selection { background: rgba(39, 0, 122, 0.99); }
+.cm-s-xq-dark .CodeMirror-gutters { background: #0a001f; border-right: 1px solid #aaa; }
+.cm-s-xq-dark .CodeMirror-guttermarker { color: #FFBD40; }
+.cm-s-xq-dark .CodeMirror-guttermarker-subtle { color: #f8f8f8; }
+.cm-s-xq-dark .CodeMirror-linenumber { color: #f8f8f8; }
+.cm-s-xq-dark .CodeMirror-cursor { border-left: 1px solid white; }
+
+.cm-s-xq-dark span.cm-keyword { color: #FFBD40; }
+.cm-s-xq-dark span.cm-atom { color: #6C8CD5; }
+.cm-s-xq-dark span.cm-number { color: #164; }
+.cm-s-xq-dark span.cm-def { color: #FFF; text-decoration:underline; }
+.cm-s-xq-dark span.cm-variable { color: #FFF; }
+.cm-s-xq-dark span.cm-variable-2 { color: #EEE; }
+.cm-s-xq-dark span.cm-variable-3 { color: #DDD; }
+.cm-s-xq-dark span.cm-property {}
+.cm-s-xq-dark span.cm-operator {}
+.cm-s-xq-dark span.cm-comment { color: gray; }
+.cm-s-xq-dark span.cm-string { color: #9FEE00; }
+.cm-s-xq-dark span.cm-meta { color: yellow; }
+.cm-s-xq-dark span.cm-qualifier { color: #FFF700; }
+.cm-s-xq-dark span.cm-builtin { color: #30a; }
+.cm-s-xq-dark span.cm-bracket { color: #cc7; }
+.cm-s-xq-dark span.cm-tag { color: #FFBD40; }
+.cm-s-xq-dark span.cm-attribute { color: #FFF700; }
+.cm-s-xq-dark span.cm-error { color: #f00; }
+
+.cm-s-xq-dark .CodeMirror-activeline-background { background: #27282E; }
+.cm-s-xq-dark .CodeMirror-matchingbracket { outline:1px solid grey; color:white !important; }
diff --git a/public/codemirror/theme/xq-light.css b/public/codemirror/theme/xq-light.css
new file mode 100644
index 000000000..8d2fcb667
--- /dev/null
+++ b/public/codemirror/theme/xq-light.css
@@ -0,0 +1,43 @@
+/*
+Copyright (C) 2011 by MarkLogic Corporation
+Author: Mike Brevoort 
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+.cm-s-xq-light span.cm-keyword { line-height: 1em; font-weight: bold; color: #5A5CAD; }
+.cm-s-xq-light span.cm-atom { color: #6C8CD5; }
+.cm-s-xq-light span.cm-number { color: #164; }
+.cm-s-xq-light span.cm-def { text-decoration:underline; }
+.cm-s-xq-light span.cm-variable { color: black; }
+.cm-s-xq-light span.cm-variable-2 { color:black; }
+.cm-s-xq-light span.cm-variable-3 { color: black; }
+.cm-s-xq-light span.cm-property {}
+.cm-s-xq-light span.cm-operator {}
+.cm-s-xq-light span.cm-comment { color: #0080FF; font-style: italic; }
+.cm-s-xq-light span.cm-string { color: red; }
+.cm-s-xq-light span.cm-meta { color: yellow; }
+.cm-s-xq-light span.cm-qualifier { color: grey; }
+.cm-s-xq-light span.cm-builtin { color: #7EA656; }
+.cm-s-xq-light span.cm-bracket { color: #cc7; }
+.cm-s-xq-light span.cm-tag { color: #3F7F7F; }
+.cm-s-xq-light span.cm-attribute { color: #7F007F; }
+.cm-s-xq-light span.cm-error { color: #f00; }
+
+.cm-s-xq-light .CodeMirror-activeline-background { background: #e8f2ff; }
+.cm-s-xq-light .CodeMirror-matchingbracket { outline:1px solid grey;color:black !important;background:yellow; }
diff --git a/public/codemirror/theme/yeti.css b/public/codemirror/theme/yeti.css
new file mode 100644
index 000000000..c70d4d214
--- /dev/null
+++ b/public/codemirror/theme/yeti.css
@@ -0,0 +1,44 @@
+/*
+
+    Name:       yeti
+    Author:     Michael Kaminsky (http://github.com/mkaminsky11)
+
+    Original yeti color scheme by Jesse Weed (https://github.com/jesseweed/yeti-syntax)
+
+*/
+
+
+.cm-s-yeti.CodeMirror {
+  background-color: #ECEAE8 !important;
+  color: #d1c9c0 !important;
+  border: none;
+}
+
+.cm-s-yeti .CodeMirror-gutters {
+  color: #adaba6;
+  background-color: #E5E1DB;
+  border: none;
+}
+.cm-s-yeti .CodeMirror-cursor { border-left: solid thin #d1c9c0; }
+.cm-s-yeti .CodeMirror-linenumber { color: #adaba6; }
+.cm-s-yeti.CodeMirror-focused div.CodeMirror-selected { background: #DCD8D2; }
+.cm-s-yeti .CodeMirror-line::selection, .cm-s-yeti .CodeMirror-line > span::selection, .cm-s-yeti .CodeMirror-line > span > span::selection { background: #DCD8D2; }
+.cm-s-yeti .CodeMirror-line::-moz-selection, .cm-s-yeti .CodeMirror-line > span::-moz-selection, .cm-s-yeti .CodeMirror-line > span > span::-moz-selection { background: #DCD8D2; }
+.cm-s-yeti span.cm-comment { color: #d4c8be; }
+.cm-s-yeti span.cm-string, .cm-s-yeti span.cm-string-2 { color: #96c0d8; }
+.cm-s-yeti span.cm-number { color: #a074c4; }
+.cm-s-yeti span.cm-variable { color: #55b5db; }
+.cm-s-yeti span.cm-variable-2 { color: #a074c4; }
+.cm-s-yeti span.cm-def { color: #55b5db; }
+.cm-s-yeti span.cm-operator { color: #9fb96e; }
+.cm-s-yeti span.cm-keyword { color: #9fb96e; }
+.cm-s-yeti span.cm-atom { color: #a074c4; }
+.cm-s-yeti span.cm-meta { color: #96c0d8; }
+.cm-s-yeti span.cm-tag { color: #96c0d8; }
+.cm-s-yeti span.cm-attribute { color: #9fb96e; }
+.cm-s-yeti span.cm-qualifier { color: #96c0d8; }
+.cm-s-yeti span.cm-property { color: #a074c4; }
+.cm-s-yeti span.cm-builtin { color: #a074c4; }
+.cm-s-yeti span.cm-variable-3 { color: #96c0d8; }
+.cm-s-yeti .CodeMirror-activeline-background { background: #E7E4E0; }
+.cm-s-yeti .CodeMirror-matchingbracket { text-decoration: underline; }
diff --git a/public/codemirror/theme/zenburn.css b/public/codemirror/theme/zenburn.css
new file mode 100644
index 000000000..781c40aca
--- /dev/null
+++ b/public/codemirror/theme/zenburn.css
@@ -0,0 +1,37 @@
+/**
+ * "
+ *  Using Zenburn color palette from the Emacs Zenburn Theme
+ *  https://github.com/bbatsov/zenburn-emacs/blob/master/zenburn-theme.el
+ *
+ *  Also using parts of https://github.com/xavi/coderay-lighttable-theme
+ * "
+ * From: https://github.com/wisenomad/zenburn-lighttable-theme/blob/master/zenburn.css
+ */
+
+.cm-s-zenburn .CodeMirror-gutters { background: #3f3f3f !important; }
+.cm-s-zenburn .CodeMirror-foldgutter-open, .CodeMirror-foldgutter-folded { color: #999; }
+.cm-s-zenburn .CodeMirror-cursor { border-left: 1px solid white; }
+.cm-s-zenburn { background-color: #3f3f3f; color: #dcdccc; }
+.cm-s-zenburn span.cm-builtin { color: #dcdccc; font-weight: bold; }
+.cm-s-zenburn span.cm-comment { color: #7f9f7f; }
+.cm-s-zenburn span.cm-keyword { color: #f0dfaf; font-weight: bold; }
+.cm-s-zenburn span.cm-atom { color: #bfebbf; }
+.cm-s-zenburn span.cm-def { color: #dcdccc; }
+.cm-s-zenburn span.cm-variable { color: #dfaf8f; }
+.cm-s-zenburn span.cm-variable-2 { color: #dcdccc; }
+.cm-s-zenburn span.cm-string { color: #cc9393; }
+.cm-s-zenburn span.cm-string-2 { color: #cc9393; }
+.cm-s-zenburn span.cm-number { color: #dcdccc; }
+.cm-s-zenburn span.cm-tag { color: #93e0e3; }
+.cm-s-zenburn span.cm-property { color: #dfaf8f; }
+.cm-s-zenburn span.cm-attribute { color: #dfaf8f; }
+.cm-s-zenburn span.cm-qualifier { color: #7cb8bb; }
+.cm-s-zenburn span.cm-meta { color: #f0dfaf; }
+.cm-s-zenburn span.cm-header { color: #f0efd0; }
+.cm-s-zenburn span.cm-operator { color: #f0efd0; }
+.cm-s-zenburn span.CodeMirror-matchingbracket { box-sizing: border-box; background: transparent; border-bottom: 1px solid; }
+.cm-s-zenburn span.CodeMirror-nonmatchingbracket { border-bottom: 1px solid; background: none; }
+.cm-s-zenburn .CodeMirror-activeline { background: #000000; }
+.cm-s-zenburn .CodeMirror-activeline-background { background: #000000; }
+.cm-s-zenburn div.CodeMirror-selected { background: #545454; }
+.cm-s-zenburn .CodeMirror-focused div.CodeMirror-selected { background: #4f4f4f; }