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- //
- // "$Id: filename_absolute.cxx,v 1.5 1999/01/13 16:56:05 mike Exp $"
- //
- // Filename expansion routines for the Fast Light Tool Kit (FLTK).
- //
- // Copyright 1998-1999 by Bill Spitzak and others.
- //
- // This library is free software; you can redistribute it and/or
- // modify it under the terms of the GNU Library General Public
- // License as published by the Free Software Foundation; either
- // version 2 of the License, or (at your option) any later version.
- //
- // This library 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
- // Library General Public License for more details.
- //
- // You should have received a copy of the GNU Library General Public
- // License along with this library; if not, write to the Free Software
- // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- // USA.
- //
- // Please report all bugs and problems to "fltk-bugs@easysw.com".
- //
-
- /* expand a file name by prepending current directory, deleting . and
- .. (not really correct for symbolic links) between the prepended
- current directory. Use $PWD if it exists.
- Returns true if any changes were made.
- */
-
- #include <FL/filename.H>
- #include <stdlib.h>
- #include <string.h>
- #if defined(WIN32) && !defined(CYGNUS)
- # include <direct.h>
- //# define getcwd(a,b) _getdcwd(0,a,b)
- #else
- # include <unistd.h>
- # ifdef __EMX__
- # define getcwd _getcwd2
- # endif
- #endif
-
- #if defined(WIN32) || defined(__EMX__)
- inline int isdirsep(char c) {return c=='/' || c=='\\';}
- #else
- #define isdirsep(c) ((c)=='/')
- #endif
-
- int filename_absolute(char *to,const char *from) {
-
- if (isdirsep(*from) || *from == '|'
- #if defined(WIN32) || defined(__EMX__)
- || from[1]==':'
- #endif
- ) {
- strcpy(to,from);
- return 0;
- }
-
- char *a,temp[FL_PATH_MAX];
- const char *start = from;
-
- a = getenv("PWD");
- if (a) strncpy(temp,a,FL_PATH_MAX);
- else {a = getcwd(temp,FL_PATH_MAX); if (!a) return 0;}
- #if defined(WIN32) || defined(__EMX__)
- for (a = temp; *a; a++) if (*a=='\\') *a = '/'; // ha ha
- #else
- a = temp+strlen(temp);
- #endif
- if (isdirsep(*(a-1))) a--;
- /* remove intermediate . and .. names: */
- while (*start == '.') {
- if (start[1]=='.' && isdirsep(start[2])) {
- char *b;
- for (b = a-1; b >= temp && !isdirsep(*b); b--);
- if (b < temp) break;
- a = b;
- start += 3;
- } else if (isdirsep(start[1])) {
- start += 2;
- } else
- break;
- }
- *a++ = '/';
- strcpy(a,start);
- strcpy(to,temp);
- return 1;
-
- }
-
- //
- // End of "$Id: filename_absolute.cxx,v 1.5 1999/01/13 16:56:05 mike Exp $".
- //
-