gnu/dist/gettext/gettext-tools/libgrep/libgrep.h

   1 /* Search for patterns in strings or files.
   2    Copyright (C) 2005 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 Foundation,
  16    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  17
  18 #ifndef _LIBGREP_H
  19 #define _LIBGREP_H
  20
  21 #include <stdbool.h>
  22 #include <stddef.h>
  23
  24
  25 #ifdef __cplusplus
  26 extern "C" {
  27 #endif
  28
  29
  30 /* A pattern matcher.  */
  31 typedef struct {
  32
  33   /* Compile a pattern and return the compiled pattern.  */
  34   void * (*compile) (const char *pattern, size_t pattern_size,
  35                      bool match_icase, bool match_words, bool match_lines,
  36                      char eolbyte);
  37
  38   /* Execute a search.  */
  39   size_t (*execute) (const void *compiled_pattern,
  40                      const char *buf, size_t buf_size,
  41                      size_t *match_size, bool exact);
  42
  43   /* Free a compiled pattern.  */
  44   void (*free) (void *compiled_pattern);
  45
  46 } matcher_t;
  47
  48 /* The built-in pattern matchers.  */
  49 extern matcher_t matcher_grep;   /* POSIX Basic Regular Expressions */
  50 extern matcher_t matcher_egrep;  /* POSIX Extended Regular Expressions */
  51 extern matcher_t matcher_fgrep;  /* Fixed String search */
  52 extern matcher_t matcher_awk;    /* AWK Regular Expressions */
  53
  54
  55 #ifdef __cplusplus
  56 }
  57 #endif
  58
  59
  60 #endif /* _LIBGREP_H */