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79 lines
1.9 KiB
79 lines
1.9 KiB
2 months ago
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/*
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* The UniCode Character Categorizer
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*
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* (c) 1997--2004 Martin Mares <mj@ucw.cz>
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*
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* This software may be freely distributed and used according to the terms
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* of the GNU Lesser General Public License.
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*/
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#ifndef _CHARSET_UNICAT_H
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#define _CHARSET_UNICAT_H
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#ifdef CONFIG_UCW_CLEAN_ABI
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#define Uexpand_lig ucw_Uexpand_lig
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#define _U_cat ucw__U_cat
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#define _U_lower ucw__U_lower
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#define _U_unaccent ucw__U_unaccent
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#define _U_upper ucw__U_upper
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#endif
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extern const byte *_U_cat[];
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extern const u16 *_U_upper[], *_U_lower[], *_U_unaccent[];
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static inline uint Ucategory(uint x)
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{
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if (_U_cat[x >> 8U])
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return _U_cat[x >> 8U][x & 0xff];
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else
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return 0;
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}
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static inline uint Utoupper(uint x)
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{
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uint w = (_U_upper[x >> 8U]) ? _U_upper[x >> 8U][x & 0xff] : 0;
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return w ? w : x;
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}
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static inline uint Utolower(uint x)
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{
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uint w = (_U_lower[x >> 8U]) ? _U_lower[x >> 8U][x & 0xff] : 0;
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return w ? w : x;
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}
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static inline uint Uunaccent(uint x)
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{
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uint w = (_U_unaccent[x >> 8U]) ? _U_unaccent[x >> 8U][x & 0xff] : 0;
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return w ? w : x;
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}
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extern const u16 *Uexpand_lig(uint x);
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enum unicode_char_type {
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_U_LETTER = 1, /* Letters */
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_U_UPPER = 2, /* Upper-case letters */
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_U_LOWER = 4, /* Lower-case letters */
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_U_CTRL = 8, /* Control characters */
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_U_DIGIT = 16, /* Digits */
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_U_XDIGIT = 32, /* Hexadecimal digits */
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_U_SPACE = 64, /* White spaces (spaces, tabs, newlines) */
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_U_LIGATURE = 128, /* Compatibility ligature (to be expanded) */
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};
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#define _U_LUPPER (_U_LETTER | _U_UPPER)
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#define _U_LLOWER (_U_LETTER | _U_LOWER)
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#define UCat(x,y) (Ucategory(x) & (y))
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#define Ualpha(x) UCat(x, _U_LETTER)
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#define Uupper(x) UCat(x, _U_UPPER)
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#define Ulower(x) UCat(x, _U_LOWER)
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#define Udigit(x) UCat(x, _U_DIGIT)
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#define Uxdigit(x) UCat(x, (_U_DIGIT | _U_XDIGIT))
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#define Ualnum(x) UCat(x, (_U_LETTER | _U_DIGIT))
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#define Uctrl(x) UCat(x, _U_CTRL)
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#define Uprint(x) !Uctrl(x)
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#define Uspace(x) UCat(x, _U_SPACE)
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#endif
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