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Assume C89, so PARAMS isn't needed.
author Paul Eggert <eggert@cs.ucla.edu>
date Wed, 18 Jun 2003 05:52:19 +0000
parents 807294ed0f4f
children d088e155d8f6
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1 /* backupfile.h -- declarations for making Emacs style backup file names
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2
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3 Copyright (C) 1990, 1991, 1992, 1997, 1998, 1999, 2003 Free
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4 Software Foundation, Inc.
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6 This program is free software; you can redistribute it and/or modify
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7 it under the terms of the GNU General Public License as published by
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8 the Free Software Foundation; either version 2, or (at your option)
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9 any later version.
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10
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11 This program is distributed in the hope that it will be useful,
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12 but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 GNU General Public License for more details.
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15
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16 You should have received a copy of the GNU General Public License
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17 along with this program; see the file COPYING.
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18 If not, write to the Free Software Foundation,
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19 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
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20
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21 #ifndef BACKUPFILE_H_
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22 # define BACKUPFILE_H_
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23
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24 /* When to make backup files. */
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25 enum backup_type
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26 {
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27 /* Never make backups. */
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28 none,
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29
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30 /* Make simple backups of every file. */
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31 simple,
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32
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33 /* Make numbered backups of files that already have numbered backups,
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34 and simple backups of the others. */
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35 numbered_existing,
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36
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37 /* Make numbered backups of every file. */
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38 numbered
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39 };
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40
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41 # define VALID_BACKUP_TYPE(Type) \
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42 ((Type) == none \
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43 || (Type) == simple \
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44 || (Type) == numbered_existing \
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45 || (Type) == numbered)
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46
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47 extern char const *simple_backup_suffix;
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48
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49 char *find_backup_file_name (char const *, enum backup_type);
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50 enum backup_type get_version (char const *context, char const *arg);
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51 enum backup_type xget_version (char const *context, char const *arg);
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52 void addext (char *, char const *, int);
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53
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54 #endif /* ! BACKUPFILE_H_ */