7657a2e4a5
Applied some damage bit fixes from Bill Spitzak. git-svn-id: file:///fltk/svn/fltk/trunk@28 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
97 lines
2.6 KiB
C++
97 lines
2.6 KiB
C++
//
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// "$Id: filename_absolute.cxx,v 1.3 1998/10/21 14:20:38 mike Exp $"
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//
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// Filename expansion routines for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998 by Bill Spitzak and others.
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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// USA.
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//
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// Please report all bugs and problems to "fltk-bugs@easysw.com".
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//
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/* expand a file name by prepending current directory, deleting . and
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.. (not really correct for symbolic links) between the prepended
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current directory. Use $PWD if it exists.
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Returns true if any changes were made.
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*/
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#include <FL/filename.H>
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#include <stdlib.h>
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#include <string.h>
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#if defined(WIN32) && !defined(CYGNUS)
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# include <direct.h>
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# define getcwd(a,b) _getdcwd(0,a,b)
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#else
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# include <unistd.h>
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# ifdef __EMX__
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# define getcwd _getcwd2
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# endif
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#endif
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#if defined(WIN32) || defined(__EMX__)
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inline int isdirsep(char c) {return c=='/' || c=='\\';}
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#else
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#define isdirsep(c) ((c)=='/')
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#endif
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int filename_absolute(char *to,const char *from) {
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if (isdirsep(*from) || *from == '|'
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#if defined(WIN32) || defined(__EMX__)
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|| from[1]==':'
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#endif
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) {
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strcpy(to,from);
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return 0;
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}
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char *a,temp[FL_PATH_MAX];
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const char *start = from;
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a = getenv("PWD");
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if (a) strncpy(temp,a,FL_PATH_MAX);
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else {a = getcwd(temp,FL_PATH_MAX); if (!a) return 0;}
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#if defined(WIN32) || defined(__EMX__)
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for (a = temp; *a; a++) if (*a=='\\') *a = '/'; // ha ha
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#else
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a = temp+strlen(temp);
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#endif
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if (isdirsep(*(a-1))) a--;
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/* remove intermediate . and .. names: */
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while (*start == '.') {
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if (start[1]=='.' && isdirsep(start[2])) {
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char *b;
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for (b = a-1; b >= temp && !isdirsep(*b); b--);
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if (b < temp) break;
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a = b;
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start += 3;
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} else if (isdirsep(start[1])) {
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start += 2;
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} else
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break;
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}
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*a++ = '/';
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strcpy(a,start);
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strcpy(to,temp);
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return 1;
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}
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//
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// End of "$Id: filename_absolute.cxx,v 1.3 1998/10/21 14:20:38 mike Exp $".
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//
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