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bpo-29456: Fix bugs in unicodedata.normalize: u1176, u11a7 and u11c3 (GH-1958)

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Hangul composition check boundaries are wrong for the second character
([0x1161, 0x1176) instead of [0x1161, 0x1176]) and third character ((0x11A7, 0x11C3)
instead of [0x11A7, 0x11C3]).
This commit is contained in:
Wonsup Yoon 2018-06-15 21:03:14 +09:00 • committed by Xiang Zhang
parent ceeef10cdb
commit d134809cd3
4 changed files with 22 additions and 3 deletions
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10
Modules/unicodedata.c
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@ -681,15 +681,19 @@ nfc_nfkc(PyObject *self, PyObject *input, int k)
if (LBase <= code && code < (LBase+LCount) &&
i + 1 < len &&
VBase <= PyUnicode_READ(kind, data, i+1) &&
PyUnicode_READ(kind, data, i+1) <= (VBase+VCount)) {
PyUnicode_READ(kind, data, i+1) < (VBase+VCount)) {
/* check L character is a modern leading consonant (0x1100 ~ 0x1112)
and V character is a modern vowel (0x1161 ~ 0x1175). */
int LIndex, VIndex;
LIndex = code - LBase;
VIndex = PyUnicode_READ(kind, data, i+1) - VBase;
code = SBase + (LIndex*VCount+VIndex)*TCount;
i+=2;
if (i < len &&
TBase <= PyUnicode_READ(kind, data, i) &&
PyUnicode_READ(kind, data, i) <= (TBase+TCount)) {
TBase < PyUnicode_READ(kind, data, i) &&
PyUnicode_READ(kind, data, i) < (TBase+TCount)) {
/* check T character is a modern trailing consonant
(0x11A8 ~ 0x11C2). */
code += PyUnicode_READ(kind, data, i)-TBase;
i++;
}