1/* Search for patterns in strings or files. 2 Copyright (C) 2005 Free Software Foundation, Inc. 3 4 This program is free software; you can redistribute it and/or modify 5 it under the terms of the GNU General Public License as published by 6 the Free Software Foundation; either version 2, or (at your option) 7 any later version. 8 9 This program is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 GNU General Public License for more details. 13 14 You should have received a copy of the GNU General Public License 15 along with this program; if not, write to the Free Software Foundation, 16 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 17 18#ifndef _LIBGREP_H 19#define _LIBGREP_H 20 21#include <stdbool.h> 22#include <stddef.h> 23 24 25#ifdef __cplusplus 26extern "C" { 27#endif 28 29 30/* A pattern matcher. */ 31typedef struct { 32 33 /* Compile a pattern and return the compiled pattern. */ 34 void * (*compile) (const char *pattern, size_t pattern_size, 35 bool match_icase, bool match_words, bool match_lines, 36 char eolbyte); 37 38 /* Execute a search. */ 39 size_t (*execute) (const void *compiled_pattern, 40 const char *buf, size_t buf_size, 41 size_t *match_size, bool exact); 42 43 /* Free a compiled pattern. */ 44 void (*free) (void *compiled_pattern); 45 46} matcher_t; 47 48/* The built-in pattern matchers. */ 49extern matcher_t matcher_grep; /* POSIX Basic Regular Expressions */ 50extern matcher_t matcher_egrep; /* POSIX Extended Regular Expressions */ 51extern matcher_t matcher_fgrep; /* Fixed String search */ 52extern matcher_t matcher_awk; /* AWK Regular Expressions */ 53 54 55#ifdef __cplusplus 56} 57#endif 58 59 60#endif /* _LIBGREP_H */ 61