/* $OpenBSD: regex.h,v 1.6 2003/06/02 19:34:12 millert Exp $ */
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/* $NetBSD: regex.h,v 1.4.6.1 1996/06/10 18:57:07 explorer Exp $ */
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/*-
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* Copyright (c) 1992 Henry Spencer.
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Henry Spencer of the University of Toronto.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)regex.h 8.1 (Berkeley) 6/2/93
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*/
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#ifndef _REGEX_H_
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#define _REGEX_H_
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#include <sys/cdefs.h>
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#include <sys/types.h>
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/* POSIX says regoff_t is at least as large as the larger of ptrdiff_t and
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* ssize_t. BSD uses off_t, but that interacts badly with _FILE_OFFSET_BITS. */
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typedef ssize_t regoff_t;
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typedef struct {
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int re_magic;
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size_t re_nsub; /* number of parenthesized subexpressions */
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const char *re_endp; /* end pointer for REG_PEND */
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struct re_guts *re_g; /* none of your business :-) */
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} regex_t;
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typedef struct {
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regoff_t rm_so; /* start of match */
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regoff_t rm_eo; /* end of match */
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} regmatch_t;
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/* regcomp() flags */
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#define REG_BASIC 0000
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#define REG_EXTENDED 0001
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#define REG_ICASE 0002
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#define REG_NOSUB 0004
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#define REG_NEWLINE 0010
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#define REG_NOSPEC 0020
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#define REG_PEND 0040
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#define REG_DUMP 0200
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/* regerror() flags */
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#define REG_NOMATCH 1
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#define REG_BADPAT 2
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#define REG_ECOLLATE 3
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#define REG_ECTYPE 4
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#define REG_EESCAPE 5
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#define REG_ESUBREG 6
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#define REG_EBRACK 7
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#define REG_EPAREN 8
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#define REG_EBRACE 9
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#define REG_BADBR 10
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#define REG_ERANGE 11
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#define REG_ESPACE 12
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#define REG_BADRPT 13
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#define REG_EMPTY 14
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#define REG_ASSERT 15
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#define REG_INVARG 16
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#define REG_ATOI 255 /* convert name to number (!) */
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#define REG_ITOA 0400 /* convert number to name (!) */
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/* regexec() flags */
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#define REG_NOTBOL 00001
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#define REG_NOTEOL 00002
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#define REG_STARTEND 00004
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#define REG_TRACE 00400 /* tracing of execution */
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#define REG_LARGE 01000 /* force large representation */
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#define REG_BACKR 02000 /* force use of backref code */
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__BEGIN_DECLS
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int regcomp(regex_t* __re, const char* __regex, int __flags);
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size_t regerror(int __error_code, const regex_t* __re, char* __buf, size_t __n);
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int regexec(const regex_t* __re, const char* __s, size_t __match_count, regmatch_t __matches[], int __flags);
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void regfree(regex_t* __re);
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__END_DECLS
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#endif
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