mirror of https://github.com/swig/swig.git
100 lines
3.3 KiB
Plaintext
100 lines
3.3 KiB
Plaintext
/* ------------------------------------------------------------
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* utility methods for char strings
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* ------------------------------------------------------------ */
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%fragment("SWIG_AsCharPtrAndSize","header",fragment="SWIG_pchar_descriptor") {
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/* Return string from Python obj. NOTE: obj must remain in scope in order
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to use the returned cptr (but only when alloc is set to SWIG_OLDOBJ) */
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SWIGINTERN int
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SWIG_AsCharPtrAndSize(PyObject *obj, char **cptr, size_t *psize, int *alloc)
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{
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int use_binary = 0; /* extract the value as raw bytes rather than as UTF-8 text */
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int is_binary = 0; /* SWIG_BINARYSTR was passed: report the exact byte count */
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if (alloc != NULL) {
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is_binary = SWIG_IsBinaryStr(*alloc);
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use_binary = is_binary;
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*alloc = 0;
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}
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%#if defined(SWIG_PYTHON_STRICT_BYTE_CHAR)
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use_binary = 1;
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%#endif
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if (use_binary ? PyBytes_Check(obj) : PyUnicode_Check(obj))
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{
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char *cstr = NULL;
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Py_ssize_t len = 0;
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PyObject *bytes = NULL;
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int ret = SWIG_OK;
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if (alloc)
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*alloc = SWIG_OLDOBJ;
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if (use_binary) {
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if (PyBytes_AsStringAndSize(obj, &cstr, &len) == -1)
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return SWIG_TypeError;
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} else {
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cstr = (char *)SWIG_PyUnicode_AsUTF8AndSize(obj, &len, &bytes);
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if (!cstr)
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return SWIG_TypeError;
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/* The returned string is only duplicated if the char * returned is not owned and memory managed by obj */
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if (bytes && cptr) {
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if (alloc) {
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size_t alen = (size_t)(len + 1);
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char *p = %new_array(alen, char);
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if (p == NULL) {
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SWIG_Py_XDECREF(bytes);
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return SWIG_MemoryError;
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}
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memcpy(p, cstr, alen);
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cstr = p;
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*alloc = SWIG_NEWOBJ;
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} else {
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/* alloc must be set in order to clean up allocated memory */
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SWIG_Py_XDECREF(bytes);
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return SWIG_RuntimeError;
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}
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}
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}
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if (cptr) *cptr = cstr;
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if (psize) *psize = is_binary ? (size_t)len : (size_t)(len + 1);
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SWIG_Py_XDECREF(bytes);
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return ret;
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} else {
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swig_type_info* pchar_descriptor = SWIG_pchar_descriptor();
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if (pchar_descriptor) {
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void* vptr = 0;
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if (SWIG_ConvertPtr(obj, &vptr, pchar_descriptor, 0) == SWIG_OK) {
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if (cptr) *cptr = (char *) vptr;
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if (psize) *psize = vptr ? (strlen((char *)vptr) + 1) : 0;
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if (alloc) *alloc = SWIG_OLDOBJ;
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return SWIG_OK;
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}
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}
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}
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return SWIG_TypeError;
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}
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}
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%fragment("SWIG_FromCharPtrAndSize","header",fragment="SWIG_pchar_descriptor") {
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%#define SWIG_FromCharPtrAndSize(carray, size) SWIG_FromBinaryCharPtrAndSize(carray, size, 0)
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SWIGINTERNINLINE PyObject *
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SWIG_FromBinaryCharPtrAndSize(const char* carray, size_t size, int flags)
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{
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if (carray) {
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if (size > (size_t)PY_SSIZE_T_MAX) {
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swig_type_info* pchar_descriptor = SWIG_pchar_descriptor();
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return pchar_descriptor ?
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SWIG_InternalNewPointerObj(%const_cast(carray,char *), pchar_descriptor, 0) : SWIG_Py_Void();
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} else {
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%#if defined(SWIG_PYTHON_STRICT_BYTE_CHAR)
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return PyBytes_FromStringAndSize(carray, %numeric_cast(size, Py_ssize_t));
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%#else
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if (SWIG_IsBinaryStr(flags))
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return PyBytes_FromStringAndSize(carray, %numeric_cast(size, Py_ssize_t));
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return PyUnicode_DecodeUTF8(carray, %numeric_cast(size, Py_ssize_t), "surrogateescape");
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%#endif
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}
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} else {
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return SWIG_Py_Void();
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}
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}
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}
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