kc3-lang/gnulib/lib/dosname.h

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• Hash : 3d50b604
  Author :
  Date : 2011-02-25T10:52:37
  

  dirname: move m4/dos.m4 functionality into lib/dosname.h
  
  m4/dos.m4 needs to go.  It laboriously invokes the C compiler, and
  extracts symbols from it, puts them into config.h; but it's much
  easier to use the symbols directly.  filename.h already does this,
  but it disagrees with dos.m4 in some respects.  This patch
  introduces a different include file dosname.h that packages up
  dos.m4, and then later we can work on merging filename.h and
  dosname.h.  Applications that need only the easy-to-configure
  symbols should consider including dosname.h rather than dirname.h.
  * NEWS: Mention incompatible changes.
  * m4/dos.m4: Remove.
  * lib/dosname.h, modules/dosname: New files.
  * lib/dirname.h (ISSLASH, FILE_SYSTEM_PREFIX_LEN):
  (FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE):
  (IS_ABSOLUTE_FILE_NAME, IS_RELATIVE_FILE_NAME): Move to lib/dosname.h.
  * lib/at-func.c, lib/at-func2.c, lib/openat.c, lib/savewd.c:
  Include dosname.h, not dirname.h.
  * lib/rmdir.c, lib/stat.c, lib/unlink.c, lib/unlinkat.c:
  Include dosname.h, for definitions of symbols like ISSLASH
  that used to be in config.h.
  * m4/dirname.m4 (gl_DIRNAME_LGPL): Do not require gl_AC_DOS.
  * m4/rmdir.m4 (gl_FUNC_RMDIR): Likewise.
  * m4/stat.m4 (gl_FUNC_STAT): Likewise.
  * m4/unlink.m4 (gl_FUNC_UNLINK): Likewise.
  * modules/dirname-lgpl (Files): Omit m4/dos.m4.
  * modules/rmdir (Files): Likewise.
  * modules/stat (Files): Likewise.
  * modules/unlink (Files): Likewise.
  * modules/dirname-lgpl (Depends-on): Add dosname.
  * modules/lstat (Depends-on): Likewise.
  * modules/openat (Depends-on): Likewise.
  * modules/rmdir (Depends-on): Likewise.
  * modules/savewd (Depends-on): Likewise.
  * modules/stat (Depends-on): Likewise.
  * modules/unlink (Depends-on): Likewise.
  * modules/openat (Depends-on): Remove dirname-lgpl.
  * modules/savewd (Depends-on): Likewise.
  * tests/test-dirname.c: Do not use removed symbols like
  FILE_SYSTEM_BACKSLASH_IS_FILE_NAME_SEPARATOR.  Instead, use
  the remaining symbols, e.g., ISSLASH ('\\').
  

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• lib/dosname.h

• /* File names on MS-DOS/Windows systems.
  
     Copyright (C) 2000-2001, 2004-2006, 2009-2011 Free Software Foundation, Inc.
  
     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 3 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, see <http://www.gnu.org/licenses/>.
  
     From Paul Eggert and Jim Meyering.  */
  
  #ifndef _DOSNAME_H
  #define _DOSNAME_H
  
  #if (defined _WIN32 || defined __WIN32__ ||     \
       defined __MSDOS__ || defined __CYGWIN__ || \
       defined __EMX__ || defined __DJGPP__)
     /* This internal macro assumes ASCII, but all hosts that support drive
        letters use ASCII.  */
  # define _IS_DRIVE_LETTER(C) (((unsigned int) (C) | ('a' - 'A')) - 'a'  \
                                <= 'z' - 'a')
  # define FILE_SYSTEM_PREFIX_LEN(Filename) \
            (_IS_DRIVE_LETTER ((Filename)[0]) && (Filename)[1] == ':' ? 2 : 0)
  # ifndef __CYGWIN__
  #  define FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE 1
  # endif
  # define ISSLASH(C) ((C) == '/' || (C) == '\\')
  #else
  # define FILE_SYSTEM_PREFIX_LEN(Filename) 0
  # define ISSLASH(C) ((C) == '/')
  #endif
  
  #ifndef FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE
  # define FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE 0
  #endif
  
  #if FILE_SYSTEM_DRIVE_PREFIX_CAN_BE_RELATIVE
  #  define IS_ABSOLUTE_FILE_NAME(F) ISSLASH ((F)[FILE_SYSTEM_PREFIX_LEN (F)])
  # else
  #  define IS_ABSOLUTE_FILE_NAME(F)                              \
       (ISSLASH ((F)[0]) || FILE_SYSTEM_PREFIX_LEN (F) != 0)
  #endif
  #define IS_RELATIVE_FILE_NAME(F) (! IS_ABSOLUTE_FILE_NAME (F))
  
  #endif /* DOSNAME_H_ */
  

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