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/* backupfile.h -- declarations for making Emacs style backup file names
Copyright (C) 1990-1992, 1997-1999 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
the Free Software Foundation; either version 2, or (at your option)
any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
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_
/* When to make backup files. */
enum backup_type
{
/* Never make backups. */
none,
/* Make simple backups of every file. */
simple,
/* Make numbered backups of files that already have numbered backups,
and simple backups of the others. */
numbered_existing,
/* Make numbered backups of every file. */
numbered
};
# define VALID_BACKUP_TYPE(Type) \
((Type) == none \
|| (Type) == simple \
|| (Type) == numbered_existing \
|| (Type) == numbered)
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 *find_backup_file_name PARAMS ((char const *, enum backup_type));
enum backup_type get_version PARAMS ((char const *context, char const *arg));
enum backup_type xget_version PARAMS ((char const *context, char const *arg));
void addext PARAMS ((char *, char const *, int));
#endif /* ! BACKUPFILE_H_ */
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