#ifndef _REGEX_H

#define _REGEX_H

#ifdef __cplusplus

extern "C" {

#endif

// #include <features.h>

// #define __NEED_regoff_t

// #define __NEED_size_t

#define CHARCLASS_NAME_MAX 14

#define RE_DUP_MAX 255

typedef size_t regoff_t;

// #include <bits/alltypes.h>

typedef struct re_pattern_buffer {

	size_t re_nsub;

	void *__opaque, *__padding[4];

	size_t __nsub2;

	char __padding2;

} regex_t;

typedef struct {

	regoff_t rm_so;

	regoff_t rm_eo;

} regmatch_t;

#define REG_EXTENDED    1

#define REG_ICASE       2

#define REG_NEWLINE     4

#define REG_NOSUB       8

#define REG_NOTBOL      1

#define REG_NOTEOL      2

#define REG_OK          0

#define REG_NOMATCH     1

#define REG_BADPAT      2

#define REG_ECOLLATE    3

#define REG_ECTYPE      4

#define REG_EESCAPE     5

#define REG_ESUBREG     6

#define REG_EBRACK      7

#define REG_EPAREN      8

#define REG_EBRACE      9

#define REG_BADBR       10

#define REG_ERANGE      11

#define REG_ESPACE      12

#define REG_BADRPT      13

#define REG_ENOSYS      -1

int regcomp(regex_t *__restrict, const char *__restrict, int);

int regexec(const regex_t *__restrict, const char *__restrict, size_t, regmatch_t *__restrict, int);

void regfree(regex_t *);

size_t regerror(int, const regex_t *__restrict, char *__restrict, size_t);

#ifdef __cplusplus

}

#endif

#endif