69 lines
2.0 KiB
C
69 lines
2.0 KiB
C
/* backupfile.h -- declarations for making Emacs style backup file names
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Copyright (C) 1990-1992, 1997-1999, 2003-2004, 2009-2022 Free Software
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Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#ifndef BACKUPFILE_H_
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#define BACKUPFILE_H_
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/* Get AT_FDCWD, as a convenience for users of this file. */
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#include <fcntl.h>
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#include <stdlib.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* When to make backup files. */
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enum backup_type
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{
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/* Never make backups. */
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no_backups,
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/* Make simple backups of every file. */
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simple_backups,
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/* Make numbered backups of files that already have numbered backups,
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and simple backups of the others. */
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numbered_existing_backups,
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/* Make numbered backups of every file. */
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numbered_backups
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};
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#define VALID_BACKUP_TYPE(Type) \
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((unsigned int) (Type) <= numbered_backups)
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extern char const *simple_backup_suffix;
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void set_simple_backup_suffix (char const *);
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char *backup_file_rename (int, char const *, enum backup_type)
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_GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE;
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char *find_backup_file_name (int, char const *, enum backup_type)
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_GL_ATTRIBUTE_MALLOC _GL_ATTRIBUTE_DEALLOC_FREE
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_GL_ATTRIBUTE_RETURNS_NONNULL;
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enum backup_type get_version (char const *context, char const *arg);
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enum backup_type xget_version (char const *context, char const *arg);
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#ifdef __cplusplus
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}
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#endif
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#endif /* ! BACKUPFILE_H_ */
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