1 /* backupfile.h -- declarations for making Emacs style backup file names
3 Copyright (C) 1990, 1991, 1992, 1997, 1998, 1999, 2003, 2004 Free
4 Software Foundation, Inc.
6 This program is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>. */
20 # define BACKUPFILE_H_
27 /* When to make backup files. */
30 /* Never make backups. */
33 /* Make simple backups of every file. */
36 /* Make numbered backups of files that already have numbered backups,
37 and simple backups of the others. */
38 numbered_existing_backups,
40 /* Make numbered backups of every file. */
44 # define VALID_BACKUP_TYPE(Type) \
45 ((unsigned int) (Type) <= numbered_backups)
47 extern char const *simple_backup_suffix;
49 char *find_backup_file_name (char const *, enum backup_type);
50 enum backup_type get_version (char const *context, char const *arg);
51 enum backup_type xget_version (char const *context, char const *arg);
52 void addext (char *, char const *, int);
59 #endif /* ! BACKUPFILE_H_ */