| 1 | /* backupfile.h -- declarations for making Emacs style backup file names
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| 2 | Copyright (C) 1990-1992, 1997-1999 Free Software Foundation, Inc.
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| 3 |
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| 4 | This program is free software; you can redistribute it and/or modify
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| 5 | it under the terms of the GNU General Public License as published by
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| 6 | the Free Software Foundation; either version 2, or (at your option)
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| 7 | any later version.
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| 8 |
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| 9 | This program is distributed in the hope that it will be useful,
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 12 | GNU General Public License for more details.
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| 13 |
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| 14 | You should have received a copy of the GNU General Public License
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| 15 | along with this program; see the file COPYING.
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| 16 | If not, write to the Free Software Foundation,
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| 17 | 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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| 18 |
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| 19 | #ifndef BACKUPFILE_H_
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| 20 | # define BACKUPFILE_H_
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| 21 |
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| 22 | /* When to make backup files. */
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| 23 | enum backup_type
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| 24 | {
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| 25 | /* Never make backups. */
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| 26 | none,
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| 27 |
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| 28 | /* Make simple backups of every file. */
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| 29 | simple,
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| 30 |
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| 31 | /* Make numbered backups of files that already have numbered backups,
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| 32 | and simple backups of the others. */
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| 33 | numbered_existing,
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| 34 |
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| 35 | /* Make numbered backups of every file. */
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| 36 | numbered
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| 37 | };
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| 38 |
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| 39 | # define VALID_BACKUP_TYPE(Type) \
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| 40 | ((Type) == none \
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| 41 | || (Type) == simple \
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| 42 | || (Type) == numbered_existing \
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| 43 | || (Type) == numbered)
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| 44 |
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| 45 | extern char const *simple_backup_suffix;
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| 46 |
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| 47 | # ifndef PARAMS
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| 48 | # if defined PROTOTYPES || (defined __STDC__ && __STDC__)
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| 49 | # define PARAMS(Args) Args
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| 50 | # else
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| 51 | # define PARAMS(Args) ()
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| 52 | # endif
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| 53 | # endif
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| 54 |
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| 55 | char *find_backup_file_name PARAMS ((char const *, enum backup_type));
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| 56 | enum backup_type get_version PARAMS ((char const *context, char const *arg));
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| 57 | enum backup_type xget_version PARAMS ((char const *context, char const *arg));
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| 58 | void addext PARAMS ((char *, char const *, int));
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| 59 |
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| 60 | #endif /* ! BACKUPFILE_H_ */
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