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- /*
- * twpath - returns the absolute path to the root directory of the
- * current treewalk, if the clips are set right.
- *
- * Copyright (C) 1989 Mike Meyer
- *
- * 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 1, or 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, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-
- /* Use the value we already calculated, if we can */
- dir = getclip('tw.fullpath')
- if dir ~= "" then return dir
-
- /* Not there, got to work it out */
- dir = getclip('tw.dirname')
- if dir = "" then return "" /* If no directory, punt */
-
- dir = pragma('Directory', dir) /* There and */
- root = pragma('Directory', dir) /* back again. */
-
- /* Add the trailing slash if needed */
- if right(root, 1) ~= ':' then root = root'/'
-
- call setclip 'tw.fullpath', root
- return root
-