41 lines
1.4 KiB
C
41 lines
1.4 KiB
C
/*
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** Internal CTYPE replacement.
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** Donated to the public domain.
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*/
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#ifndef _LJ_CTYPE_H
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#define _LJ_CTYPE_H
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#include "lj_def.h"
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#define LJ_CTYPE_CNTRL 0x01
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#define LJ_CTYPE_SPACE 0x02
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#define LJ_CTYPE_PUNCT 0x04
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#define LJ_CTYPE_DIGIT 0x08
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#define LJ_CTYPE_XDIGIT 0x10
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#define LJ_CTYPE_UPPER 0x20
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#define LJ_CTYPE_LOWER 0x40
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#define LJ_CTYPE_IDENT 0x80
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#define LJ_CTYPE_ALPHA (LJ_CTYPE_LOWER|LJ_CTYPE_UPPER)
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#define LJ_CTYPE_ALNUM (LJ_CTYPE_ALPHA|LJ_CTYPE_DIGIT)
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/* Only pass -1 or 0..255 to these macros. Never pass a signed char! */
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#define lj_ctype_isa(c, t) (lj_ctype_bits[(c)+1] & t)
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#define lj_ctype_iscntrl(c) lj_ctype_isa((c), LJ_CTYPE_CNTRL)
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#define lj_ctype_isspace(c) lj_ctype_isa((c), LJ_CTYPE_SPACE)
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#define lj_ctype_ispunct(c) lj_ctype_isa((c), LJ_CTYPE_PUNCT)
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#define lj_ctype_isdigit(c) lj_ctype_isa((c), LJ_CTYPE_DIGIT)
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#define lj_ctype_isxdigit(c) lj_ctype_isa((c), LJ_CTYPE_XDIGIT)
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#define lj_ctype_isupper(c) lj_ctype_isa((c), LJ_CTYPE_UPPER)
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#define lj_ctype_islower(c) lj_ctype_isa((c), LJ_CTYPE_LOWER)
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#define lj_ctype_isident(c) lj_ctype_isa((c), LJ_CTYPE_IDENT)
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#define lj_ctype_isalpha(c) lj_ctype_isa((c), LJ_CTYPE_ALPHA)
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#define lj_ctype_isalnum(c) lj_ctype_isa((c), LJ_CTYPE_ALNUM)
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#define lj_ctype_toupper(c) ((c) - (lj_ctype_islower(c) >> 1))
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#define lj_ctype_tolower(c) ((c) + lj_ctype_isupper(c))
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LJ_DATA const uint8_t lj_ctype_bits[257];
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#endif
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