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