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/*-

 * 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.

 * 4. 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     8.2 (Berkeley) 1/3/94

 * $FreeBSD: src/include/regex.h,v 1.4 2002/03/23 17:24:53 imp Exp $

 */

#ifndef _REGEX_H_

#define _REGEX_H_

#include <sys/cdefs.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 */

__BEGIN_DECLS

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 *);

__END_DECLS

#endif /* !_REGEX_H_ */