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, 2010 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 #ifdef __cplusplus
  30 extern "C" {
  31 #endif
  32
  33 #if defined(__MSDOS__) || defined(_WIN32) || defined(__OS2__) || defined (__CYGWIN__)
  34
  35 #ifndef HAVE_DOS_BASED_FILE_SYSTEM
  36 #define HAVE_DOS_BASED_FILE_SYSTEM 1
  37 #endif
  38
  39 #define IS_DIR_SEPARATOR(c)     ((c) == '/' || (c) == '\\')
  40
  41 #define HAS_DRIVE_SPEC(f)       (((f)[0]) && ((f)[1] == ':'))
  42
  43 /* Remove the drive spec from F, assuming HAS_DRIVE_SPEC (f).
  44    The result is a pointer to the remainder of F.  */
  45 #define STRIP_DRIVE_SPEC(f)     ((f) + 2)
  46
  47 /* Note that IS_ABSOLUTE_PATH accepts d:foo as well, although it is
  48    only semi-absolute.  This is because the users of IS_ABSOLUTE_PATH
  49    want to know whether to prepend the current working directory to
  50    a file name, which should not be done with a name like d:foo.  */
  51 #define IS_ABSOLUTE_PATH(f)     (IS_DIR_SEPARATOR((f)[0]) || HAS_DRIVE_SPEC(f))
  52
  53 #else  /* not DOSish */
  54
  55 #define IS_DIR_SEPARATOR(c)     ((c) == '/')
  56 #define IS_ABSOLUTE_PATH(f)     (IS_DIR_SEPARATOR((f)[0]))
  57
  58 #define HAS_DRIVE_SPEC(f)       (0)
  59 #define STRIP_DRIVE_SPEC(f)     (f)
  60
  61 #endif /* not DOSish */
  62
  63 extern int filename_cmp (const char *s1, const char *s2);
  64 #define FILENAME_CMP(s1, s2)    filename_cmp(s1, s2)
  65
  66 #ifdef __cplusplus
  67 }
  68 #endif
  69
  70 #endif /* FILENAMES_H */