/* backupfile.h -- declarations for making Emacs style backup file names
- Copyright (C) 1990 Free Software Foundation, Inc.
+
+ Copyright (C) 1990, 1991, 1992, 1997, 1998, 1999, 2003, 2004 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. */
+
+#ifndef BACKUPFILE_H_
+# define BACKUPFILE_H_
+
+# ifdef __cplusplus
+extern "C" {
+# endif
+
-/* 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)
+
+extern char const *simple_backup_suffix;
+
+char *find_backup_file_name (char const *, enum backup_type);
+enum backup_type get_version (char const *context, char const *arg);
+enum backup_type xget_version (char const *context, char const *arg);
+void addext (char *, char const *, int);
+
+
+# ifdef __cplusplus
+}
+# endif
-#ifdef __STDC__
-char *find_backup_file_name (const char *file);
-#else
-char *find_backup_file_name ();
-#endif
+#endif /* ! BACKUPFILE_H_ */