#ifndef LIBRCS__REVNUM_H
#define LIBRCS__REVNUM_H

/*
 * Copyright (c) 2003  Petr Baudis.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *   * 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.
 *   * Neither the name of the author nor the names of the product's
 *     contributors may be used to endorse or promote products
 *     derived from this software without specific prior written
 *     permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
 */

#ifdef __cplusplus
extern "C" {
#endif


#include <librev/inode.h>
#include <librev/objid.h>

#include <librcs/librcs.h>


/* This file contains utilities working upon RCS-style revision numbers. */


/* Look for a revision @revnum in @inode. */
/* Returns the result structure pointer or NULL if not found. */
struct rev_objid *rcs_revnum_lookup (struct rev_inode *inode, char *revnum);

/* Look for a revision @revnum in @inode, creating missing elements from the
 * @revnum path if necessary. */
/* Returns the result struct pointer or NULL if not found or error occured. */
struct rev_objid *rcs_revnum_dig (struct rev_inode *inode, char *revnum);

/* Return the complete revnum string for a given @node. */
/* Returns the string pointer or NULL. */
char *rcs_revnum_str (struct rev_objid *node);


#ifdef __cplusplus
}
#endif

#endif