gnu/usr.bin/grep/grep.h

   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: src/gnu/usr.bin/grep/grep.h,v 1.5 2000/01/04 03:25:40 obrien Exp $ */
  20 /* $DragonFly: src/gnu/usr.bin/grep/grep.h,v 1.2 2003/06/17 04:25:45 dillon Exp $ */
  21
  22 #if __GNUC__ < 2 || (__GNUC__ == 2 && __GNUC_MINOR__ < 6) || __STRICT_ANSI__
  23 # define __attribute__(x)
  24 #endif
  25
  26 extern void fatal PARAMS ((const char *, int)) __attribute__((noreturn));
  27 extern char *xmalloc PARAMS ((size_t size));
  28 extern char *xrealloc PARAMS ((char *ptr, size_t size));
  29
  30 /* Grep.c expects the matchers vector to be terminated
  31    by an entry with a NULL name, and to contain at least
  32    an entry named "default". */
  33
  34 extern struct matcher
  35 {
  36   char *name;
  37   void (*compile) PARAMS ((char *, size_t));
  38   char *(*execute) PARAMS ((char *, size_t, char **));
  39 } matchers[];
  40
  41 /* Exported from fgrepmat.c, egrepmat.c, grepmat.c.  */
  42 extern char const *matcher;
  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 */