/* backupfile.h -- declarations for making Emacs style backup file names
- Copyright (C) 1990 Free Software Foundation, Inc.
+ Copyright (C) 1990, 1991, 1992, 1997, 1998 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software Foundation,
- Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
+ along with this program; see the file COPYING.
+ If not, write to the Free Software Foundation,
+ 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-/* When to make backup files. */
+/* When to make backup files. */
enum backup_type
{
- /* Never make backups. */
+ /* Never make backups. */
none,
- /* Make simple backups of every file. */
+ /* Make simple backups of every file. */
simple,
/* Make numbered backups of files that already have numbered backups,
- and simple backups of the others. */
+ and simple backups of the others. */
numbered_existing,
- /* Make numbered backups of every file. */
+ /* Make numbered backups of every file. */
numbered
};
-extern enum backup_type backup_type;
-extern char *simple_backup_suffix;
+#define VALID_BACKUP_TYPE(Type) \
+ ((Type) == none \
+ || (Type) == simple \
+ || (Type) == numbered_existing \
+ || (Type) == numbered)
-#ifdef __STDC__
-char *find_backup_file_name (const char *file);
-#else
-char *find_backup_file_name ();
+extern char const *simple_backup_suffix;
+
+#ifndef PARAMS
+# if defined PROTOTYPES || (defined __STDC__ && __STDC__)
+# define PARAMS(Args) Args
+# else
+# define PARAMS(Args) ()
+# endif
#endif
+
+char *base_name PARAMS ((char const *));
+char *find_backup_file_name PARAMS ((char const *, enum backup_type));
+enum backup_type get_version PARAMS ((char const *));
+void addext PARAMS ((char *, char const *, int));