/* $OpenBSD: regex.h,v 1.7 2012/12/05 23:19:57 deraadt Exp $ */

/* $NetBSD: regex.h,v 1.4.6.1 1996/06/10 18:57:07 explorer Exp $ */

/*-

* Copyright (c) 1992 Henry Spencer.

* Copyright (c) 1992, 1993

* The Regents of the University of California. All rights reserved.

*

* This code is derived from software contributed to Berkeley by

* Henry Spencer of the University of Toronto.

*

* 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.

* 3. Neither the name of the University nor the names of its contributors

* may be used to endorse or promote products derived from this software

* without specific prior written permission.

*

* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.

*

* @(#)regex.h 8.1 (Berkeley) 6/2/93

*/

#ifndef _REGEX_H_

#define _REGEX_H_

#include <sys/types.h>

#include "config.h"

/* types */

typedef off_t regoff_t;

typedef struct {

int re_magic;

size_t re_nsub; /* number of parenthesized subexpressions */

const char *re_endp; /* end pointer for REG_PEND */

struct re_guts *re_g; /* none of your business :-) */

} regex_t;

typedef struct {

regoff_t rm_so; /* start of match */

regoff_t rm_eo; /* end of match */

} regmatch_t;

/* regcomp() flags */

#define REG_BASIC 0000

#define REG_EXTENDED 0001

#define REG_ICASE 0002

#define REG_NOSUB 0004

#define REG_NEWLINE 0010

#define REG_NOSPEC 0020

#define REG_PEND 0040

#define REG_DUMP 0200

/* regerror() flags */

#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_EMPTY 14

#define REG_ASSERT 15

#define REG_INVARG 16

#define REG_ATOI 255 /* convert name to number (!) */

#define REG_ITOA 0400 /* convert number to name (!) */

/* regexec() flags */

#define REG_NOTBOL 00001

#define REG_NOTEOL 00002

#define REG_STARTEND 00004

#define REG_TRACE 00400 /* tracing of execution */

#define REG_LARGE 01000 /* force large representation */

#define REG_BACKR 02000 /* force use of backref code */

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

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

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

void regfree(regex_t *);

#endif /* !_REGEX_H_ */