include/filenames.h

   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, 2007 Free Software Foundation, Inc.
   9
  10 This file is part of BFD, the Binary File Descriptor library.
  11
  12 This program is free software; you can redistribute it and/or modify
  13 it under the terms of the GNU General Public License as published by
  14 the Free Software Foundation; either version 2 of the License, or
  15 (at your option) any later version.
  16
  17 This program is distributed in the hope that it will be useful,
  18 but WITHOUT ANY WARRANTY; without even the implied warranty of
  19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20 GNU General Public License for more details.
  21
  22 You should have received a copy of the GNU General Public License
  23 along with this program; if not, write to the Free Software
  24 Foundation, 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
  42 #else  /* not DOSish */
  43
  44 #define IS_DIR_SEPARATOR(c)     ((c) == '/')
  45 #define IS_ABSOLUTE_PATH(f)     (IS_DIR_SEPARATOR((f)[0]))
  46
  47 #endif /* not DOSish */
  48
  49 extern int filename_cmp (const char *s1, const char *s2);
  50 #define FILENAME_CMP(s1, s2)    filename_cmp(s1, s2)
  51
  52 #endif /* FILENAMES_H */