1/*
2 * $OpenBSD: backupfile.h,v 1.6 2003/07/28 18:35:36 otto Exp $
3 * $DragonFly: src/usr.bin/patch/backupfile.h,v 1.3 2007/09/29 23:11:10 swildner Exp $
4 * $NetBSD$
5 */
6
7/*
8 * backupfile.h -- declarations for making Emacs style backup file names
9 * Copyright (C) 1990 Free Software Foundation, Inc.
10 *
11 * This program is free software; you can redistribute it and/or modify it
12 * without restriction.
13 *
14 * This program is distributed in the hope that it will be useful, but WITHOUT
15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 * FITNESS FOR A PARTICULAR PURPOSE.
17 *
18 */
19
20/* When to make backup files. */
21enum backup_type {
22	/* Never make backups. */
23	none,
24
25	/* Make simple backups of every file. */
26	simple,
27
28	/*
29	 * Make numbered backups of files that already have numbered backups,
30	 * and simple backups of the others.
31	 */
32	numbered_existing,
33
34	/* Make numbered backups of every file. */
35	numbered
36};
37
38extern enum backup_type backup_type;
39extern const char	*simple_backup_suffix;
40
41char		*find_backup_file_name(const char *file);
42enum backup_type get_version(const char *version);
43