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80 lines
2.3 KiB
80 lines
2.3 KiB
/**
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* (C) 2007-20 - ntop.org and contributors
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not see see <http://www.gnu.org/licenses/>
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*
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*/
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// taken from https://github.com/kokke/tiny-regex-c
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// under Unlicense as of August 4, 2020
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/*
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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 _N2N_REGEX_
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#define _N2N_REGEX_
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#ifdef __cplusplus
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extern "C"{
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#endif
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#include <stdio.h>
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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* matchlenght);
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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* matchlenght);
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#ifdef __cplusplus
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}
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#endif
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#endif
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