The R Project SVN R

/*-
 * 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. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *  This product includes software developed by the University of
 *  California, Berkeley and its contributors.
 * 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
 */

#ifndef _REGEX_H_
#define _REGEX_H_

#include <sys/cdefs.h>

/* types */
#ifndef Macintosh
typedef off_t regoff_t;
#endif

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 __P((regex_t *, const char *, int));
size_t  regerror __P((int, const regex_t *, char *, size_t));
int regexec __P((const regex_t *,
        const char *, size_t, regmatch_t [], int));
void    regfree __P((regex_t *));
__END_DECLS

#endif /* !_REGEX_H_ */