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Document requierements of Unicode kinds

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This commit is contained in:
Victor Stinner 2011-10-05 01:31:05 +02:00
parent 9310abbf40
commit 4d0d54bcba
1 changed files with 20 additions and 4 deletions
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24
Include/unicodeobject.h
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@ -288,10 +288,26 @@ typedef struct {
unsigned int interned:2;
/* Character size:
PyUnicode_WCHAR_KIND (0): wchar_t*
PyUnicode_1BYTE_KIND (1): Py_UCS1*
PyUnicode_2BYTE_KIND (2): Py_UCS2*
PyUnicode_4BYTE_KIND (3): Py_UCS4*
- PyUnicode_WCHAR_KIND (0):
* character type = wchar_t (16 or 32 bits, depending on the
platform)
- PyUnicode_1BYTE_KIND (1):
* character type = Py_UCS1 (8 bits, unsigned)
* if ascii is 1, at least one character must be in range
U+80-U+FF, otherwise all characters must be in range U+00-U+7F
- PyUnicode_2BYTE_KIND (2):
* character type = Py_UCS2 (16 bits, unsigned)
* at least one character must be in range U+0100-U+1FFFF
- PyUnicode_4BYTE_KIND (3):
* character type = Py_UCS4 (32 bits, unsigned)
* at least one character must be in range U+10000-U+10FFFF
*/
unsigned int kind:2;
/* Compact is with respect to the allocation scheme. Compact unicode