src/grep.h

   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 */