xref: /openbsd-src/usr.bin/patch/backupfile.h (revision 0326910242ea077c5d9ade0e39384c3cd2c649d7)
1 /*	$OpenBSD: backupfile.h,v 1.6 2003/07/28 18:35:36 otto Exp $	*/
2 
3 /*
4  * backupfile.h -- declarations for making Emacs style backup file names
5  * Copyright (C) 1990 Free Software Foundation, Inc.
6  *
7  * This program is free software; you can redistribute it and/or modify it
8  * without restriction.
9  *
10  * This program is distributed in the hope that it will be useful, but WITHOUT
11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12  * FITNESS FOR A PARTICULAR PURPOSE.
13  *
14  */
15 
16 /* When to make backup files. */
17 enum backup_type {
18 	/* Never make backups. */
19 	none,
20 
21 	/* Make simple backups of every file. */
22 	simple,
23 
24 	/*
25 	 * Make numbered backups of files that already have numbered backups,
26 	 * and simple backups of the others.
27 	 */
28 	numbered_existing,
29 
30 	/* Make numbered backups of every file. */
31 	numbered
32 };
33 
34 extern enum backup_type backup_type;
35 extern char	*simple_backup_suffix;
36 
37 char		*find_backup_file_name(const char *file);
38 enum backup_type get_version(const char *version);
39