grep.h revision 53475 
1/* grep.h - interface to grep driver for searching subroutines.
2   Copyright (C) 1992, 1998 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
16   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
17   02111-1307, USA.  */
18
19/* $FreeBSD: head/gnu/usr.bin/grep/grep.h 53475 1999-11-20 23:42:44Z obrien $ */
20
21#if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6) || __STRICT_ANSI__
22# define __attribute__(x)
23#endif
24
25extern void fatal PARAMS ((const char *, int)) __attribute__((noreturn));
26extern char *xmalloc PARAMS ((size_t size));
27extern char *xrealloc PARAMS ((char *ptr, size_t size));
28
29/* Grep.c expects the matchers vector to be terminated
30   by an entry with a NULL name, and to contain at least
31   an entry named "default". */
32
33extern struct matcher
34{
35  char *name;
36  void (*compile) PARAMS ((char *, size_t));
37  char *(*execute) PARAMS ((char *, size_t, char **));
38} matchers[];
39
40/* Exported from grep.c. */
41extern char const *matcher;
42
43/* Exported from fgrepmat.c, egrepmat.c, grepmat.c.  */
44extern char const default_matcher[];
45
46/* The following flags are exported from grep for the matchers
47   to look at. */
48extern int match_icase;		/* -i */
49extern int match_words;		/* -w */
50extern int match_lines;		/* -x */
51