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Use macro instead of sizeof as that is recommended by the python developers

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Kovid Goyal 2014-03-06 17:47:48 +05:30
parent 68a37c565d
commit 4b954101b7
1 changed files with 20 additions and 16 deletions
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36
src/calibre/utils/icu_calibre_utils.h
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@ -22,7 +22,7 @@
#include <unicode/unorm.h>
#if PY_VERSION_HEX < 0x03030000
// Roundtripping will need to be implemented differently for python > 3.2 where strings are stored with variable widths
// Roundtripping will need to be implemented differently for python 3.3+ where strings are stored with variable widths
#ifndef NO_PYTHON_TO_ICU
static UChar* python_to_icu(PyObject *obj, int32_t *osz, uint8_t do_check) {
@ -35,19 +35,21 @@ static UChar* python_to_icu(PyObject *obj, int32_t *osz, uint8_t do_check) {
goto end;
}
if (sizeof(Py_UNICODE) == 2) { // narrow build (UTF-16)
sz = PyUnicode_GET_DATA_SIZE(obj);
ans = (UChar*) calloc(sz, 1);
if (ans == NULL) { PyErr_NoMemory(); goto end; }
memcpy(ans, PyUnicode_AS_UNICODE(obj), sz);
if (osz != NULL) *osz = (int32_t)PyUnicode_GET_SIZE(obj);
} else { // wide build (UCS 4)
sz = PyUnicode_GET_SIZE(obj);
ans = (UChar*) calloc(2*sz+1, sizeof(UChar)); // There can be no more than 2 UChars per character
if (ans == NULL) { PyErr_NoMemory(); goto end; }
u_strFromUTF32(ans, (int32_t)2*sz+1, osz, (UChar32*)PyUnicode_AS_UNICODE(obj), (int32_t)sz, &status);
if (U_FAILURE(status)) { PyErr_SetString(PyExc_ValueError, u_errorName(status)); free(ans); ans = NULL; goto end; }
}
#ifdef Py_UNICODE_WIDE
// wide build (UCS 4)
sz = PyUnicode_GET_SIZE(obj);
ans = (UChar*) calloc(2*sz+1, sizeof(UChar)); // There can be no more than 2 UChars per character
if (ans == NULL) { PyErr_NoMemory(); goto end; }
u_strFromUTF32(ans, (int32_t)2*sz+1, osz, (UChar32*)PyUnicode_AS_UNICODE(obj), (int32_t)sz, &status);
if (U_FAILURE(status)) { PyErr_SetString(PyExc_ValueError, u_errorName(status)); free(ans); ans = NULL; goto end; }
#else
// narrow build (UTF-16)
sz = PyUnicode_GET_DATA_SIZE(obj);
ans = (UChar*) calloc(sz, 1);
if (ans == NULL) { PyErr_NoMemory(); goto end; }
memcpy(ans, PyUnicode_AS_UNICODE(obj), sz);
if (osz != NULL) *osz = (int32_t)PyUnicode_GET_SIZE(obj);
#endif
end:
return ans;
}
@ -55,9 +57,11 @@ end:
#ifndef NO_ICU_TO_PYTHON
static PyObject* icu_to_python(UChar *src, int32_t sz) {
if (sizeof(Py_UNICODE) == 2) // narrow build UTF-16
return PyUnicode_FromUnicode((Py_UNICODE*)src, sz);
#ifdef Py_UNICODE_WIDE
return PyUnicode_DecodeUTF16((char*)src, sz*sizeof(UChar), "strict", NULL);
#else
return PyUnicode_FromUnicode((Py_UNICODE*)src, sz);
#endif
}
#endif