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67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
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#ifndef SANE_CTYPE_H
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#define SANE_CTYPE_H
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/* Sane ctype - no locale, and works with signed chars */
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#undef isascii
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#undef isspace
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#undef isdigit
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#undef isalpha
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#undef isalnum
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#undef isprint
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#undef islower
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#undef isupper
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#undef tolower
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#undef toupper
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#undef iscntrl
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#undef ispunct
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#undef isxdigit
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extern const unsigned char sane_ctype[256];
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extern const signed char hexval_table[256];
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#define GIT_SPACE 0x01
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#define GIT_DIGIT 0x02
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#define GIT_ALPHA 0x04
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#define GIT_GLOB_SPECIAL 0x08
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#define GIT_REGEX_SPECIAL 0x10
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#define GIT_PATHSPEC_MAGIC 0x20
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#define GIT_CNTRL 0x40
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#define GIT_PUNCT 0x80
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#define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0)
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#define isascii(x) (((x) & ~0x7f) == 0)
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#define isspace(x) sane_istest(x,GIT_SPACE)
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#define isdigit(x) sane_istest(x,GIT_DIGIT)
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#define isalpha(x) sane_istest(x,GIT_ALPHA)
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#define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT)
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#define isprint(x) ((x) >= 0x20 && (x) <= 0x7e)
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#define islower(x) sane_iscase(x, 1)
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#define isupper(x) sane_iscase(x, 0)
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#define is_glob_special(x) sane_istest(x,GIT_GLOB_SPECIAL)
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#define is_regex_special(x) sane_istest(x,GIT_GLOB_SPECIAL | GIT_REGEX_SPECIAL)
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#define iscntrl(x) (sane_istest(x,GIT_CNTRL))
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#define ispunct(x) sane_istest(x, GIT_PUNCT | GIT_REGEX_SPECIAL | \
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GIT_GLOB_SPECIAL | GIT_PATHSPEC_MAGIC)
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#define isxdigit(x) (hexval_table[(unsigned char)(x)] != -1)
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#define tolower(x) sane_case((unsigned char)(x), 0x20)
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#define toupper(x) sane_case((unsigned char)(x), 0)
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#define is_pathspec_magic(x) sane_istest(x,GIT_PATHSPEC_MAGIC)
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static inline int sane_case(int x, int high)
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{
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if (sane_istest(x, GIT_ALPHA))
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x = (x & ~0x20) | high;
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return x;
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}
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static inline int sane_iscase(int x, int is_lower)
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{
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if (!sane_istest(x, GIT_ALPHA))
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return 0;
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if (is_lower)
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return (x & 0x20) != 0;
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else
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return (x & 0x20) == 0;
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}
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#endif
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