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/* 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 HAS_DRIVE_SPEC(f) HAS_DOS_DRIVE_SPEC (f)

#  define IS_DIR_SEPARATOR(c) IS_DOS_DIR_SEPARATOR (c)

#  define IS_ABSOLUTE_PATH(f) IS_DOS_ABSOLUTE_PATH (f)

#else /* not DOSish */

#  define HAS_DRIVE_SPEC(f) (0)

#  define IS_DIR_SEPARATOR(c) IS_UNIX_DIR_SEPARATOR (c)

#  define IS_ABSOLUTE_PATH(f) IS_UNIX_ABSOLUTE_PATH (f)

#endif

#define IS_DIR_SEPARATOR_1(dos_based, c)                                \

  (((c) == '/')                                                         \

   || (((c) == '\\') && (dos_based)))

#define HAS_DRIVE_SPEC_1(dos_based, f)                  \

  ((f)[0] && ((f)[1] == ':') && (dos_based))

/* 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)

#define IS_DOS_DIR_SEPARATOR(c) IS_DIR_SEPARATOR_1 (1, c)

#define IS_DOS_ABSOLUTE_PATH(f) IS_ABSOLUTE_PATH_1 (1, f)

#define HAS_DOS_DRIVE_SPEC(f) HAS_DRIVE_SPEC_1 (1, f)

#define IS_UNIX_DIR_SEPARATOR(c) IS_DIR_SEPARATOR_1 (0, c)

#define IS_UNIX_ABSOLUTE_PATH(f) IS_ABSOLUTE_PATH_1 (0, f)

/* Note that when DOS_BASED is true, 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_1(dos_based, f)                 \

  (IS_DIR_SEPARATOR_1 (dos_based, (f)[0])                 \

   || HAS_DRIVE_SPEC_1 (dos_based, f))

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 */