/* backupfile.c -- make Emacs style backup file names
- Copyright (C) 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998,
- 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2009 Free Software
- Foundation, Inc.
+ Copyright (C) 1990-2006, 2009-2013 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
- It's typically faster.
POSIX says that only '0' through '9' are digits. Prefer ISDIGIT to
ISDIGIT unless it's important to use the locale's definition
- of `digit' even when the host does not conform to POSIX. */
+ of "digit" even when the host does not conform to POSIX. */
#define ISDIGIT(c) ((unsigned int) (c) - '0' <= 9)
/* The extension added to file names to produce a simple (as opposed