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65 lines
1.7 KiB
C
65 lines
1.7 KiB
C
/*
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*
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* Mini regex-module inspired by Rob Pike's regex code described in:
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*
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* http://www.cs.princeton.edu/courses/archive/spr09/cos333/beautiful.html
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*
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*
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*
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* Supports:
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* ---------
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* '.' Dot, matches any character
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* '^' Start anchor, matches beginning of string
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* '$' End anchor, matches end of string
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* '*' Asterisk, match zero or more (greedy)
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* '+' Plus, match one or more (greedy)
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* '?' Question, match zero or one (non-greedy)
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* '[abc]' Character class, match if one of {'a', 'b', 'c'}
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* '[^abc]' Inverted class, match if NOT one of {'a', 'b', 'c'} -- NOTE: feature is currently broken!
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* '[a-zA-Z]' Character ranges, the character set of the ranges { a-z | A-Z }
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* '\s' Whitespace, \t \f \r \n \v and spaces
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* '\S' Non-whitespace
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* '\w' Alphanumeric, [a-zA-Z0-9_]
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* '\W' Non-alphanumeric
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* '\d' Digits, [0-9]
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* '\D' Non-digits
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*
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*
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*/
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#ifndef _TINY_REGEX_C
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#define _TINY_REGEX_C
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#ifndef RE_DOT_MATCHES_NEWLINE
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/* Define to 0 if you DON'T want '.' to match '\r' + '\n' */
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#define RE_DOT_MATCHES_NEWLINE 1
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#endif
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#ifdef __cplusplus
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extern "C"{
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#endif
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/* Typedef'd pointer to get abstract datatype. */
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typedef struct regex_t* re_t;
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/* Compile regex string pattern to a regex_t-array. */
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re_t re_compile(const char* pattern);
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/* Find matches of the compiled pattern inside text. */
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int re_matchp(re_t pattern, const char* text, int* matchlength);
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/* Find matches of the txt pattern inside text (will compile automatically first). */
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int re_match(const char* pattern, const char* text, int* matchlength);
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#ifdef __cplusplus
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}
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#endif
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#endif /* ifndef _TINY_REGEX_C */
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