newlib-cygwin/include/filenames.h

/* Macros for taking apart, interpreting and processing file names.

   These are here because some non-Posix (a.k.a. DOSish) systems have
   drive letter brain-damage at the beginning of an absolute file name,
   use forward- and back-slash in path names interchangeably, and
   some of them have case-insensitive file names.

   Copyright 2000, 2001, 2007, 2010 Free Software Foundation, Inc.

This file is part of BFD, the Binary File Descriptor library.

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
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */

#ifndef FILENAMES_H
#define FILENAMES_H

#ifdef __cplusplus
extern "C" {
#endif

#if defined(__MSDOS__) || defined(_WIN32) || defined(__OS2__) || defined (__CYGWIN__)

#ifndef HAVE_DOS_BASED_FILE_SYSTEM
#define HAVE_DOS_BASED_FILE_SYSTEM 1
#endif

#define IS_DIR_SEPARATOR(c)	((c) == '/' || (c) == '\\')

#define HAS_DRIVE_SPEC(f)	(((f)[0]) && ((f)[1] == ':'))

/* Remove the drive spec from F, assuming HAS_DRIVE_SPEC (f).
   The result is a pointer to the remainder of F.  */
#define STRIP_DRIVE_SPEC(f)	((f) + 2)

/* Note that IS_ABSOLUTE_PATH accepts d:foo as well, although it is
   only semi-absolute.  This is because the users of IS_ABSOLUTE_PATH
   want to know whether to prepend the current working directory to
   a file name, which should not be done with a name like d:foo.  */
#define IS_ABSOLUTE_PATH(f)	(IS_DIR_SEPARATOR((f)[0]) || HAS_DRIVE_SPEC(f))

#else  /* not DOSish */

#define IS_DIR_SEPARATOR(c)	((c) == '/')
#define IS_ABSOLUTE_PATH(f)	(IS_DIR_SEPARATOR((f)[0]))

#define HAS_DRIVE_SPEC(f)	(0)
#define STRIP_DRIVE_SPEC(f)	(f)

#endif /* not DOSish */

extern int filename_cmp (const char *s1, const char *s2);
#define FILENAME_CMP(s1, s2)	filename_cmp(s1, s2)

#ifdef __cplusplus
}
#endif

#endif /* FILENAMES_H */