programs/winefile/splitpath.c

   1 /*
   2  * Copyright 2000, 2004 Martin Fuchs
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library 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 GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include "winefile.h"
  20
  21
  22 void _wsplitpath(const WCHAR* path, WCHAR* drv, WCHAR* dir, WCHAR* name, WCHAR* ext)
  23 {
  24         const WCHAR* end; /* end of processed string */
  25         const WCHAR* p;   /* search pointer */
  26         const WCHAR* s;   /* copy pointer */
  27
  28         /* extract drive name */
  29         if (path[0] && path[1]==':') {
  30                 if (drv) {
  31                         *drv++ = *path++;
  32                         *drv++ = *path++;
  33                         *drv = '\0';
  34                 }
  35         } else if (drv)
  36                 *drv = '\0';
  37
  38         /* search for end of string or stream separator */
  39         for(end=path; *end && *end!=':'; )
  40                 end++;
  41
  42         /* search for begin of file extension */
  43         for(p=end; p>path && *--p!='\\' && *p!='/'; )
  44                 if (*p == '.') {
  45                         end = p;
  46                         break;
  47                 }
  48
  49         if (ext)
  50                 for(s=end; (*ext=*s++); )
  51                         ext++;
  52
  53         /* search for end of directory name */
  54         for(p=end; p>path; )
  55                 if (*--p=='\\' || *p=='/') {
  56                         p++;
  57                         break;
  58                 }
  59
  60         if (name) {
  61                 for(s=p; s<end; )
  62                         *name++ = *s++;
  63
  64                 *name = '\0';
  65         }
  66
  67         if (dir) {
  68                 for(s=path; s<p; )
  69                         *dir++ = *s++;
  70
  71                 *dir = '\0';
  72         }
  73 }
  74
  75
  76 /*
  77 void main()     // test splipath()
  78 {
  79         WCHAR drv[_MAX_DRIVE+1], dir[_MAX_DIR], name[_MAX_FNAME], ext[_MAX_EXT];
  80
  81         _wsplitpath(L"x\\y", drv, dir, name, ext);
  82         _wsplitpath(L"x\\", drv, dir, name, ext);
  83         _wsplitpath(L"\\x", drv, dir, name, ext);
  84         _wsplitpath(L"x", drv, dir, name, ext);
  85         _wsplitpath(L"", drv, dir, name, ext);
  86         _wsplitpath(L".x", drv, dir, name, ext);
  87         _wsplitpath(L":x", drv, dir, name, ext);
  88         _wsplitpath(L"a:x", drv, dir, name, ext);
  89         _wsplitpath(L"a.b:x", drv, dir, name, ext);
  90         _wsplitpath(L"W:\\/\\abc/Z:~", drv, dir, name, ext);
  91         _wsplitpath(L"abc.EFGH:12345", drv, dir, name, ext);
  92         _wsplitpath(L"C:/dos/command.com", drv, dir, name, ext);
  93 }
  94 */