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add str.casefold() (closes #13752)

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This commit is contained in:
Benjamin Peterson 2012-01-14 13:23:30 -05:00
parent 94d5a7174a
commit d5890c8db5
8 changed files with 493 additions and 137 deletions
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25
Objects/unicodectype.c
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@ -185,7 +185,7 @@ Py_UCS4 _PyUnicode_ToUppercase(Py_UCS4 ch)
const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
if (ctype->flags & EXTENDED_CASE_MASK)
return _PyUnicode_ExtendedCase[ctype->upper & 0xFFFFFF];
return _PyUnicode_ExtendedCase[ctype->upper & 0xFFFF];
return ctype->upper ? ctype->upper : ch;
}
@ -197,7 +197,7 @@ Py_UCS4 _PyUnicode_ToLowercase(Py_UCS4 ch)
const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
if (ctype->flags & EXTENDED_CASE_MASK)
return _PyUnicode_ExtendedCase[ctype->lower & 0xFFFFFF];
return _PyUnicode_ExtendedCase[ctype->lower & 0xFFFF];
return ctype->lower ? ctype->lower : ch;
}
@ -206,7 +206,7 @@ int _PyUnicode_ToLowerFull(Py_UCS4 ch, Py_UCS4 *res)
const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
if (ctype->flags & EXTENDED_CASE_MASK) {
int index = ctype->lower & 0xFFFFFF;
int index = ctype->lower & 0xFFFF;
int n = ctype->lower >> 24;
int i;
for (i = 0; i < n; i++)
@ -222,7 +222,7 @@ int _PyUnicode_ToTitleFull(Py_UCS4 ch, Py_UCS4 *res)
const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
if (ctype->flags & EXTENDED_CASE_MASK) {
int index = ctype->title & 0xFFFFFF;
int index = ctype->title & 0xFFFF;
int n = ctype->title >> 24;
int i;
for (i = 0; i < n; i++)
@ -238,7 +238,7 @@ int _PyUnicode_ToUpperFull(Py_UCS4 ch, Py_UCS4 *res)
const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
if (ctype->flags & EXTENDED_CASE_MASK) {
int index = ctype->upper & 0xFFFFFF;
int index = ctype->upper & 0xFFFF;
int n = ctype->upper >> 24;
int i;
for (i = 0; i < n; i++)
@ -249,6 +249,21 @@ int _PyUnicode_ToUpperFull(Py_UCS4 ch, Py_UCS4 *res)
return 1;
}
int _PyUnicode_ToFoldedFull(Py_UCS4 ch, Py_UCS4 *res)
{
const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);
if (ctype->flags & EXTENDED_CASE_MASK && (ctype->lower >> 20) & 7) {
int index = (ctype->lower & 0xFFFF) + (ctype->lower >> 24);
int n = (ctype->lower >> 20) & 7;
int i;
for (i = 0; i < n; i++)
res[i] = _PyUnicode_ExtendedCase[index + i];
return n;
}
return _PyUnicode_ToLowerFull(ch, res);
}
int _PyUnicode_IsCased(Py_UCS4 ch)
{
const _PyUnicode_TypeRecord *ctype = gettyperecord(ch);