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/* Search for patterns in strings or files.
Copyright (C) 2005, 2015-2016 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef _LIBGREP_H
#define _LIBGREP_H
#include <stdbool.h>
#include <stddef.h>
#ifdef __cplusplus
extern "C" {
#endif
/* A pattern matcher. */
typedef struct {
/* Compile a pattern and return the compiled pattern. */
void * (*compile) (const char *pattern, size_t pattern_size,
bool match_icase, bool match_words, bool match_lines,
char eolbyte);
/* Execute a search. */
size_t (*execute) (const void *compiled_pattern,
const char *buf, size_t buf_size,
size_t *match_size, bool exact);
/* Free a compiled pattern. */
void (*free) (void *compiled_pattern);
} matcher_t;
/* The built-in pattern matchers. */
extern matcher_t matcher_grep; /* POSIX Basic Regular Expressions */
extern matcher_t matcher_egrep; /* POSIX Extended Regular Expressions */
extern matcher_t matcher_fgrep; /* Fixed String search */
extern matcher_t matcher_awk; /* AWK Regular Expressions */
#ifdef __cplusplus
}
#endif
#endif /* _LIBGREP_H */
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