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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ 17 18 #ifndef _LIBGREP_H 19 #define _LIBGREP_H 20 21 #include <stdbool.h> 22 #include <stddef.h> 23 24 25 #ifdef __cplusplus 26 extern "C" { 27 #endif 28 29 30 /* A pattern matcher. */ 31 typedef 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. */ 49 extern matcher_t matcher_grep; /* POSIX Basic Regular Expressions */ 50 extern matcher_t matcher_egrep; /* POSIX Extended Regular Expressions */ 51 extern matcher_t matcher_fgrep; /* Fixed String search */ 52 extern matcher_t matcher_awk; /* AWK Regular Expressions */ 53 54 55 #ifdef __cplusplus 56 } 57 #endif 58 59 60 #endif /* _LIBGREP_H */ 61