src/regex_parser.h

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. 
 * Copyright 2018 Mike Becker. All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 * 
 * 1. Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 * 
 * 2. Redistributions in binary form must reproduce the above copyright
 * notice, this list of conditions and the following disclaimer in the
 * documentation and/or other materials provided with the distribution.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef REGEX_PARSER_H_
#define REGEX_PARSER_H_

#define REGEX_MAX_LINELENGTH           2048

#include <sys/types.h>
#include <stdbool.h>
#include <regex.h>
#include "string_list.h"

typedef struct {
  string_list_t* pattern_list; /* even entries: start ; odd entries: end */
  regex_t** compiled_patterns;
  size_t compiled_pattern_count;
  unsigned int pattern_match; /* save position of end pattern to match -
                                 NULL when a start pattern shall match first */
  unsigned int matched_lines;
} regex_parser_t;

#ifdef _cplusplus
extern "C" {
#endif

regex_parser_t* new_regex_parser_t();
void destroy_regex_parser_t(regex_parser_t*);
void regex_parser_reset(regex_parser_t* parser);

bool regex_parser_matching(regex_parser_t*);
bool regex_compile_all(regex_parser_t*);
int regex_parser_do(regex_parser_t*, char*);

#ifdef _cplusplus
}
#endif

#endif /* REGEX_PARSER_H_ */