/*	$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 */