1 /* backupfile.h -- declarations for making Emacs style backup file names 2 Copyright (C) 1990, 1991, 1992, 1997 Free Software Foundation, Inc. 3 4 This program is free software; you can redistribute it and/or modify 5 it under the terms of the GNU General Public License as published by 6 the Free Software Foundation; either version 2, or (at your option) 7 any later version. 8 9 This program is distributed in the hope that it will be useful, 10 but WITHOUT ANY WARRANTY; without even the implied warranty of 11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 GNU General Public License for more details. 13 14 You should have received a copy of the GNU General Public License 15 along with this program; see the file COPYING. 16 If not, write to the Free Software Foundation, 17 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 18 19 /* When to make backup files. */ 20 enum backup_type 21 { 22 /* Never make backups. */ 23 none, 24 25 /* Make simple backups of every file. */ 26 simple, 27 28 /* Make numbered backups of files that already have numbered backups, 29 and simple backups of the others. */ 30 numbered_existing, 31 32 /* Make numbered backups of every file. */ 33 numbered 34 }; 35 36 extern enum backup_type backup_type; 37 extern char const *simple_backup_suffix; 38 39 #ifndef __BACKUPFILE_P 40 # if defined __STDC__ || __GNUC__ 41 # define __BACKUPFILE_P(args) args 42 # else 43 # define __BACKUPFILE_P(args) () 44 # endif 45 #endif 46 47 char *base_name __BACKUPFILE_P ((char const *)); 48 char *find_backup_file_name __BACKUPFILE_P ((char const *)); 49 enum backup_type get_version __BACKUPFILE_P ((char const *)); 50 void addext __BACKUPFILE_P ((char *, char const *, int)); 51