release/src/router/gettext/gettext-tools/lib/pathname.h

   1 /* Pathname support.
   2    Copyright (C) 2001-2004 Free Software Foundation, Inc.
   3
   4    This program is free software; you can redistribute it and/or modify
   5    it under the terms of the GNU General Public License as published by
   6    the Free Software Foundation; either version 2, or (at your option)
   7    any later version.
   8
   9    This program is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12    GNU General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; if not, write to the Free Software Foundation,
  16    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  17
  18 #ifndef _PATHNAME_H
  19 #define _PATHNAME_H
  20
  21 #ifdef __cplusplus
  22 extern "C" {
  23 #endif
  24
  25
  26 /* Pathname support.
  27    ISSLASH(C)           tests whether C is a directory separator character.
  28    IS_ABSOLUTE_PATH(P)  tests whether P is an absolute path.  If it is not,
  29                         it may be concatenated to a directory pathname.
  30    IS_PATH_WITH_DIR(P)  tests whether P contains a directory specification.
  31  */
  32 #if defined _WIN32 || defined __WIN32__ || defined __CYGWIN__ || defined __EMX__ || defined __DJGPP__
  33   /* Win32, Cygwin, OS/2, DOS */
  34 # define ISSLASH(C) ((C) == '/' || (C) == '\\')
  35 # define HAS_DEVICE(P) \
  36     ((((P)[0] >= 'A' && (P)[0] <= 'Z') || ((P)[0] >= 'a' && (P)[0] <= 'z')) \
  37      && (P)[1] == ':')
  38 # define IS_ABSOLUTE_PATH(P) (ISSLASH ((P)[0]) || HAS_DEVICE (P))
  39 # define IS_PATH_WITH_DIR(P) \
  40     (strchr (P, '/') != NULL || strchr (P, '\\') != NULL || HAS_DEVICE (P))
  41 # define FILE_SYSTEM_PREFIX_LEN(P) (HAS_DEVICE (P) ? 2 : 0)
  42 #else
  43   /* Unix */
  44 # define ISSLASH(C) ((C) == '/')
  45 # define IS_ABSOLUTE_PATH(P) ISSLASH ((P)[0])
  46 # define IS_PATH_WITH_DIR(P) (strchr (P, '/') != NULL)
  47 # define FILE_SYSTEM_PREFIX_LEN(P) 0
  48 #endif
  49
  50 /* Concatenate a directory pathname, a relative pathname and an optional
  51    suffix.  Return a freshly allocated pathname.  */
  52 extern char *concatenated_pathname (const char *directory,
  53                                     const char *filename, const char *suffix);
  54
  55 #ifdef __cplusplus
  56 }
  57 #endif
  58
  59 #endif /* _PATHNAME_H */