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Java/transform/Version1.java

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+/*   
+Version0.java
+ *    
+ *    You may use and distribute under the terms of either the GNU Lesser
+ *    General Public License, either version 2 of the license or,
+ *    at your choice, any later version. Alternatively, you may use and
+ *    distribute under the terms of the XPL.
+ *
+ *    See the LICENSE.lgpl and LICENSE.xpl files for the specific terms of 
+ *    the licenses.
+ *
+ *    This software 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 README
+ *    file for more details.
+ *
+ */
+/*
+ * Written by Benjamin Fallenstein
+ */
+package org.gzigzag.transform;
+import java.util.*;
+import org.gzigzag.*;
+
+/** ZZspace version changer - from version 1 to version 2.
+ */
+
+public class Version1 implements VersionChanger {
+String rcsid = "$Id: Version1.java,v 1.3 2000/09/19 10:32:01 ajk Exp $";
+	static public final void pa(String s) { System.out.println(s); }
+	static public final void pan(String s) { System.out.print(s); }
+/** Change the space from version 1 to version 2 to make it compatible.
+ *  Change to 3-dimension cursing system, allowing every cell to be accursed:
+ *  <ol>
+ *  <li> fold d.cursor's headcells onto TMPDIM
+ *  <li> change d.cursor to d.cursor-list
+ *  <li> change TMPDIM to d.cursor
+ *  </ol>
+ *  @param s	The space to convert
+ */
+        public int changeVersion(ZZSpace s) {
+		pa("Converting from version 1 to version 2:");
+		pa("Change to 3-dimension cursing system.");
+		pan("Folding d.cursor's headcells to TMPDIM... ");
+                (new FoldDim("d.cursor", "TMPDIM", s)).transform();
+		pa("done.");
+		pan("Renaming to d.cursor and d.cursor-list... ");
+                (new ChangeDim("d.cursor", "d.cursor-list", s)).transform();
+		pan("d.cursor-list done... ");
+                (new ChangeDim("TMPDIM", "d.cursor", s)).transform();
+		pa(" d.cursor done.");
+		pa("Converted to version 2.");
+                return 2;
+        }
+}
+