xref: /dragonfly/contrib/grep/src/grep.h (revision 6e278935)
1 /* grep.h - interface to grep driver for searching subroutines.
2    Copyright (C) 1992, 1998, 2001, 2007, 2009-2011 Free Software Foundation,
3    Inc.
4 
5    This program is free software; you can redistribute it and/or modify
6    it under the terms of the GNU General Public License as published by
7    the Free Software Foundation; either version 3, or (at your option)
8    any later version.
9 
10    This program is distributed in the hope that it will be useful,
11    but WITHOUT ANY WARRANTY; without even the implied warranty of
12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13    GNU General Public License for more details.
14 
15    You should have received a copy of the GNU General Public License
16    along with this program; if not, write to the Free Software
17    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
18    02110-1301, USA.  */
19 
20 #ifndef GREP_GREP_H
21 #define GREP_GREP_H 1
22 
23 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6) || __STRICT_ANSI__
24 # define __attribute__(x)
25 #endif
26 
27 /* Function pointer types.  */
28 typedef void (*compile_fp_t) (char const *, size_t);
29 typedef size_t (*execute_fp_t) (char const *, size_t, size_t *, char const *);
30 
31 /* grep.c expects the matchers vector to be terminated by an entry
32    with a NULL name, and to contain at least one entry. */
33 struct matcher
34 {
35   const char *name;
36   compile_fp_t compile;
37   execute_fp_t execute;
38 };
39 extern const struct matcher matchers[];
40 
41 extern const char before_options[];
42 extern const char after_options[];
43 
44 /* The following flags are exported from grep for the matchers
45    to look at. */
46 extern int match_icase;		/* -i */
47 extern int match_words;		/* -w */
48 extern int match_lines;		/* -x */
49 extern unsigned char eolbyte;	/* -z */
50 
51 #endif
52