/*-

 * This code is derived from OpenBSD's libc/regex, original license follows:

 *

 * 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>

typedef off_t llvm_regoff_t;

typedef struct {

  llvm_regoff_t rm_so;    /* start of match */

  llvm_regoff_t rm_eo;    /* end of match */

} llvm_regmatch_t;

typedef struct llvm_regex {

  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 :-) */

} llvm_regex_t;

/* llvm_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

/* llvm_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 (!) */

/* llvm_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 */

#ifdef __cplusplus

extern "C" {

#endif

int llvm_regcomp(llvm_regex_t *, const char *, int);

size_t  llvm_regerror(int, const llvm_regex_t *, char *, size_t);

int llvm_regexec(const llvm_regex_t *, const char *, size_t,

                     llvm_regmatch_t [], int);

void  llvm_regfree(llvm_regex_t *);

size_t  llvm_strlcpy(char *dst, const char *src, size_t siz);

#ifdef __cplusplus

}

#endif

#endif /* !_REGEX_H_ */