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fork our code we shared between openrcs/cvs into the openrcs dir.

this was starting to become inhuman to maintain without
ugly ugly hacks in the shared code, and it will be easier
to make specific changes for openrcs without touching the
soon-to-be-replaced opencvs code.

/*	$OpenBSD: util.h,v 1.1 2006/04/26 02:55:13 joris Exp $	*/
/*
 * Copyright (c) 2006 Niall O'Higgins <niallo@openbsd.org>
 * All rights reserved.
 *
 * 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. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED ``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 AUTHOR 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.
 */

#ifndef UTIL_H
#define UTIL_H

struct rcs_line {
	char			*l_line;
	int			 l_lineno;
	TAILQ_ENTRY(rcs_line)	 l_list;
};

TAILQ_HEAD(rcs_tqh, rcs_line);

struct rcs_lines {
	int		l_nblines;
	char		*l_data;
	struct rcs_tqh	l_lines;
};

struct rcs_argvector {
	char *str;
	char **argv;
};

BUF			*rcs_patchfile(const char *, const char *,
			    int (*p)(struct rcs_lines *, struct rcs_lines *));
struct rcs_lines	*rcs_splitlines(const char *);
void			rcs_freelines(struct rcs_lines *);
int			rcs_yesno(void);
struct rcs_argvector	*rcs_strsplit(char *, const char *);

void			rcs_argv_destroy(struct rcs_argvector *);

#endif	/* UTIL_H */