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+/* $OpenBSD: regex.h,v 1.3 1997/09/21 10:45:48 niklas 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. 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 8.1 (Berkeley) 6/2/93
+ */
+
+#ifndef _REGEX_H_
+#define _REGEX_H_
+
+#include <sys/cdefs.h>
+#include <sys/types.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 __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_ */