/*----------------------------------------------------------------------------------------------
This method uses an ICU function to convert a string from UTF-16 to UTF-32.
Assumptions:
If sourceLen is -1, it will be computed (by ICU)
Exit conditions:
<text>
Parameters:
<text>
Return value:
The number of characters needed to store the fully-converted result
(which may be greater than targetLen)
----------------------------------------------------------------------------------------------*/
int UnicodeConverter::Convert(const UChar* source, int sourceLen,
wchar_t* target, int targetLen)
{
UErrorCode status = U_ZERO_ERROR;
int32_t spaceRequiredForData;
u_strToWCS(target, targetLen, &spaceRequiredForData, source, sourceLen, &status);
if (U_FAILURE(status) && status != U_BUFFER_OVERFLOW_ERROR)
throw std::runtime_error("Unable to convert from UTF-16 to UTF-32");
return spaceRequiredForData;
}
static PyObject* uchar_to_unicode(const UChar *src, int32_t len) {
wchar_t *buf = NULL;
PyObject *ans = NULL;
UErrorCode status = U_ZERO_ERROR;
if (len < 0) { len = u_strlen(src); }
buf = (wchar_t *)calloc(4*len, sizeof(wchar_t));
if (buf == NULL) return PyErr_NoMemory();
u_strToWCS(buf, 4*len, NULL, src, len, &status);
if (U_SUCCESS(status)) {
ans = PyUnicode_FromWideChar(buf, wcslen(buf));
if (ans == NULL) PyErr_NoMemory();
} else PyErr_SetString(PyExc_TypeError, "Failed to convert UChar* to wchar_t*");
free(buf);
return ans;
}
// Collator.contractions {{{
static PyObject *
icu_Collator_contractions(icu_Collator *self, PyObject *args, PyObject *kwargs) {
UErrorCode status = U_ZERO_ERROR;
UChar *str;
UChar32 start=0, end=0;
int32_t count = 0, len = 0, dlen = 0, i;
PyObject *ans = Py_None, *pbuf;
wchar_t *buf;
if (self->contractions == NULL) {
self->contractions = uset_open(1, 0);
if (self->contractions == NULL) return PyErr_NoMemory();
self->contractions = ucol_getTailoredSet(self->collator, &status);
}
status = U_ZERO_ERROR;
str = (UChar*)calloc(100, sizeof(UChar));
buf = (wchar_t*)calloc(4*100+2, sizeof(wchar_t));
if (str == NULL || buf == NULL) return PyErr_NoMemory();
count = uset_getItemCount(self->contractions);
ans = PyTuple_New(count);
if (ans != NULL) {
for (i = 0; i < count; i++) {
len = uset_getItem(self->contractions, i, &start, &end, str, 1000, &status);
if (len >= 2) {
// We have a string
status = U_ZERO_ERROR;
u_strToWCS(buf, 4*100 + 1, &dlen, str, len, &status);
pbuf = PyUnicode_FromWideChar(buf, dlen);
if (pbuf == NULL) return PyErr_NoMemory();
PyTuple_SetItem(ans, i, pbuf);
} else {
// Ranges dont make sense for contractions, ignore them
PyTuple_SetItem(ans, i, Py_None);
}
}
}
free(str); free(buf);
return Py_BuildValue("O", ans);
} // }}}
