lj_char.h (1437B)
1 /* 2 ** Character types. 3 ** Donated to the public domain. 4 */ 5 6 #ifndef _LJ_CHAR_H 7 #define _LJ_CHAR_H 8 9 #include "lj_def.h" 10 11 #define LJ_CHAR_CNTRL 0x01 12 #define LJ_CHAR_SPACE 0x02 13 #define LJ_CHAR_PUNCT 0x04 14 #define LJ_CHAR_DIGIT 0x08 15 #define LJ_CHAR_XDIGIT 0x10 16 #define LJ_CHAR_UPPER 0x20 17 #define LJ_CHAR_LOWER 0x40 18 #define LJ_CHAR_IDENT 0x80 19 #define LJ_CHAR_ALPHA (LJ_CHAR_LOWER|LJ_CHAR_UPPER) 20 #define LJ_CHAR_ALNUM (LJ_CHAR_ALPHA|LJ_CHAR_DIGIT) 21 #define LJ_CHAR_GRAPH (LJ_CHAR_ALNUM|LJ_CHAR_PUNCT) 22 23 /* Only pass -1 or 0..255 to these macros. Never pass a signed char! */ 24 #define lj_char_isa(c, t) ((lj_char_bits+1)[(c)] & t) 25 #define lj_char_iscntrl(c) lj_char_isa((c), LJ_CHAR_CNTRL) 26 #define lj_char_isspace(c) lj_char_isa((c), LJ_CHAR_SPACE) 27 #define lj_char_ispunct(c) lj_char_isa((c), LJ_CHAR_PUNCT) 28 #define lj_char_isdigit(c) lj_char_isa((c), LJ_CHAR_DIGIT) 29 #define lj_char_isxdigit(c) lj_char_isa((c), LJ_CHAR_XDIGIT) 30 #define lj_char_isupper(c) lj_char_isa((c), LJ_CHAR_UPPER) 31 #define lj_char_islower(c) lj_char_isa((c), LJ_CHAR_LOWER) 32 #define lj_char_isident(c) lj_char_isa((c), LJ_CHAR_IDENT) 33 #define lj_char_isalpha(c) lj_char_isa((c), LJ_CHAR_ALPHA) 34 #define lj_char_isalnum(c) lj_char_isa((c), LJ_CHAR_ALNUM) 35 #define lj_char_isgraph(c) lj_char_isa((c), LJ_CHAR_GRAPH) 36 37 #define lj_char_toupper(c) ((c) - (lj_char_islower(c) >> 1)) 38 #define lj_char_tolower(c) ((c) + lj_char_isupper(c)) 39 40 LJ_DATA const uint8_t lj_char_bits[257]; 41 42 #endif