filenames.h revision 169695 
1/* Macros for taking apart, interpreting and processing file names.
2
3   These are here because some non-Posix (a.k.a. DOSish) systems have
4   drive letter brain-damage at the beginning of an absolute file name,
5   use forward- and back-slash in path names interchangeably, and
6   some of them have case-insensitive file names.
7
8   Copyright 2000, 2001 Free Software Foundation, Inc.
9
10This file is part of BFD, the Binary File Descriptor library.
11
12This program is free software; you can redistribute it and/or modify
13it under the terms of the GNU General Public License as published by
14the Free Software Foundation; either version 2 of the License, or
15(at your option) any later version.
16
17This program is distributed in the hope that it will be useful,
18but WITHOUT ANY WARRANTY; without even the implied warranty of
19MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20GNU General Public License for more details.
21
22You should have received a copy of the GNU General Public License
23along with this program; if not, write to the Free Software
24Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
25
26#ifndef FILENAMES_H
27#define FILENAMES_H
28
29#if defined(__MSDOS__) || defined(_WIN32) || defined(__OS2__) || defined (__CYGWIN__)
30
31#ifndef HAVE_DOS_BASED_FILE_SYSTEM
32#define HAVE_DOS_BASED_FILE_SYSTEM 1
33#endif
34
35#define IS_DIR_SEPARATOR(c)	((c) == '/' || (c) == '\\')
36/* Note that IS_ABSOLUTE_PATH accepts d:foo as well, although it is
37   only semi-absolute.  This is because the users of IS_ABSOLUTE_PATH
38   want to know whether to prepend the current working directory to
39   a file name, which should not be done with a name like d:foo.  */
40#define IS_ABSOLUTE_PATH(f)	(IS_DIR_SEPARATOR((f)[0]) || (((f)[0]) && ((f)[1] == ':')))
41#define FILENAME_CMP(s1, s2)	strcasecmp(s1, s2)
42
43#else  /* not DOSish */
44
45#define IS_DIR_SEPARATOR(c)	((c) == '/')
46#define IS_ABSOLUTE_PATH(f)	(IS_DIR_SEPARATOR((f)[0]))
47#define FILENAME_CMP(s1, s2)	strcmp(s1, s2)
48
49#endif /* not DOSish */
50
51#endif /* FILENAMES_H */
52