#ifndef __REG_STRING_H__
#define __REG_STRING_H__

/*
 * @author fenrir (https://fenrir.naruoka.org/)
 * 
 * reg_string.h 
 * 正規表現の特殊記法について記述したヘッダ。
 */

#define MATCH 0

#ifdef __cplusplus
extern "C"{
#endif

int reg_compare(char *regexp, char *target);
int reg_backref_index(char *target);

/* 正規表現特殊文字 */
#define REGEXP_OR             '|'
#define GROUP_START           '('
#define GROUP_END             ')'
#define GROUP_WITHOUT_MARK    '?'

#define CHAR_CLASS_START      '['
#define CHAR_CLASS_END        ']'
#define CHAR_CLASS_INVERT     '^'
#define CHAR_CLASS_RANGE      '-'

#define ZERO_OR_ONE           '?'
#define ZERO_TO_ANY           '*'
#define ONE_TO_ANY            '+'
#define MIN_MAX_START         '{'
#define MIN_MAX_END           '}'
#define MIN_MAX_SEPARATOR     ','
#define NON_GREEDY            '?'

#define ESCAPE_CHARACTER      '\\'
#define ANY_CHARACTER         '.'

#define SPACE                 's'
#define NOT_SPACE             'S'
#define DIGIT                 'd'
#define NOT_DIGIT             'D'
#define HEX                   'h'
#define NOT_HEX               'H'
#define NORMAL_CHAR           'w'
#define NOT_NORMAL_CHAR       'W'

#ifdef __cplusplus
};
#endif

#endif /* __REG_STRING_H__ */