diff options
Diffstat (limited to 'sane-ctype.h')
| -rw-r--r-- | sane-ctype.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/sane-ctype.h b/sane-ctype.h new file mode 100644 index 0000000000..cbea1b299b --- /dev/null +++ b/sane-ctype.h @@ -0,0 +1,66 @@ +#ifndef SANE_CTYPE_H +#define SANE_CTYPE_H + +/* Sane ctype - no locale, and works with signed chars */ +#undef isascii +#undef isspace +#undef isdigit +#undef isalpha +#undef isalnum +#undef isprint +#undef islower +#undef isupper +#undef tolower +#undef toupper +#undef iscntrl +#undef ispunct +#undef isxdigit + +extern const unsigned char sane_ctype[256]; +extern const signed char hexval_table[256]; +#define GIT_SPACE 0x01 +#define GIT_DIGIT 0x02 +#define GIT_ALPHA 0x04 +#define GIT_GLOB_SPECIAL 0x08 +#define GIT_REGEX_SPECIAL 0x10 +#define GIT_PATHSPEC_MAGIC 0x20 +#define GIT_CNTRL 0x40 +#define GIT_PUNCT 0x80 +#define sane_istest(x,mask) ((sane_ctype[(unsigned char)(x)] & (mask)) != 0) +#define isascii(x) (((x) & ~0x7f) == 0) +#define isspace(x) sane_istest(x,GIT_SPACE) +#define isdigit(x) sane_istest(x,GIT_DIGIT) +#define isalpha(x) sane_istest(x,GIT_ALPHA) +#define isalnum(x) sane_istest(x,GIT_ALPHA | GIT_DIGIT) +#define isprint(x) ((x) >= 0x20 && (x) <= 0x7e) +#define islower(x) sane_iscase(x, 1) +#define isupper(x) sane_iscase(x, 0) +#define is_glob_special(x) sane_istest(x,GIT_GLOB_SPECIAL) +#define is_regex_special(x) sane_istest(x,GIT_GLOB_SPECIAL | GIT_REGEX_SPECIAL) +#define iscntrl(x) (sane_istest(x,GIT_CNTRL)) +#define ispunct(x) sane_istest(x, GIT_PUNCT | GIT_REGEX_SPECIAL | \ + GIT_GLOB_SPECIAL | GIT_PATHSPEC_MAGIC) +#define isxdigit(x) (hexval_table[(unsigned char)(x)] != -1) +#define tolower(x) sane_case((unsigned char)(x), 0x20) +#define toupper(x) sane_case((unsigned char)(x), 0) +#define is_pathspec_magic(x) sane_istest(x,GIT_PATHSPEC_MAGIC) + +static inline int sane_case(int x, int high) +{ + if (sane_istest(x, GIT_ALPHA)) + x = (x & ~0x20) | high; + return x; +} + +static inline int sane_iscase(int x, int is_lower) +{ + if (!sane_istest(x, GIT_ALPHA)) + return 0; + + if (is_lower) + return (x & 0x20) != 0; + else + return (x & 0x20) == 0; +} + +#endif |