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gh-129569: The function unicodedata.normalize() always returns built-in str (#129570)

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Co-authored-by: Victor Stinner <vstinner@python.org>
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Hizuru 2025-02-21 22:51:13 +09:00 • committed by GitHub
parent 9bf73c032f
commit c359fcd2f5
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3 changed files with 29 additions and 5 deletions
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10
Modules/unicodedata.c
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@ -933,34 +933,34 @@ unicodedata_UCD_normalize_impl(PyObject *self, PyObject *form,
if (PyUnicode_GET_LENGTH(input) == 0) {
/* Special case empty input strings, since resizing
them later would cause internal errors. */
return Py_NewRef(input);
return PyUnicode_FromObject(input);
}
if (PyUnicode_CompareWithASCIIString(form, "NFC") == 0) {
if (is_normalized_quickcheck(self, input,
true, false, true) == YES) {
return Py_NewRef(input);
return PyUnicode_FromObject(input);
}
return nfc_nfkc(self, input, 0);
}
if (PyUnicode_CompareWithASCIIString(form, "NFKC") == 0) {
if (is_normalized_quickcheck(self, input,
true, true, true) == YES) {
return Py_NewRef(input);
return PyUnicode_FromObject(input);
}
return nfc_nfkc(self, input, 1);
}
if (PyUnicode_CompareWithASCIIString(form, "NFD") == 0) {
if (is_normalized_quickcheck(self, input,
false, false, true) == YES) {
return Py_NewRef(input);
return PyUnicode_FromObject(input);
}
return nfd_nfkd(self, input, 0);
}
if (PyUnicode_CompareWithASCIIString(form, "NFKD") == 0) {
if (is_normalized_quickcheck(self, input,
false, true, true) == YES) {
return Py_NewRef(input);
return PyUnicode_FromObject(input);
}
return nfd_nfkd(self, input, 1);
}