1 /* grep.h - interface to grep driver for searching subroutines. 2 Copyright (C) 1992, 1998, 2001, 2007, 2009-2010 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 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6) || __STRICT_ANSI__ 21 # define __attribute__(x) 22 #endif 23 24 /* Function pointer types. */ 25 typedef void (*compile_fp_t) (char const *, size_t); 26 typedef size_t (*execute_fp_t) (char const *, size_t, size_t *, char const *); 27 28 /* grep.c expects the matchers vector to be terminated by an entry 29 with a NULL name, and to contain at least one entry. */ 30 extern struct matcher 31 { 32 const char *name; 33 compile_fp_t compile; 34 execute_fp_t execute; 35 } const matchers[]; 36 37 extern const char before_options[]; 38 extern const char after_options[]; 39 40 /* The following flags are exported from grep for the matchers 41 to look at. */ 42 extern int match_icase; /* -i */ 43 extern int match_words; /* -w */ 44 extern int match_lines; /* -x */ 45 extern unsigned char eolbyte; /* -z */ 46