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Modules/awtool/BooleanMesh.java

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+/*   
+BooleanMesh.java
+ *    
+ *    Copyright (c) 2000-2001 Ted Nelson and Tuomas Lukka
+ *    Copyright (c) 2000-2001 Benjamin Fallenstein
+ *
+ *    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 Kimmo Wideroos
+ */
+
+package org.gzigzag.module;
+import org.gzigzag.*;
+import java.util.*;
+
+public abstract class BooleanMesh {
+    public static boolean dbg = false;
+    static void p(String s) { if(dbg) System.out.println(s); }
+    static void pa(String s) { System.out.println(s); }
+
+    static String d_1 = "d.1"; static String d_2 = "d.2";
+    static public ZZCell bStructure = null;
+    static public Hashtable bOperators = new Hashtable();
+
+    /*
+    */
+    public BooleanMesh(ZZCell bs) { 
+        bStructure = bs; 
+        bOperators.put("AND", new boolean[][]{{false, false}, {false, true}});
+        bOperators.put("OR", new boolean[][]{{false, true}, {true, true}});
+        bOperators.put("XOR", new boolean[][]{{false, true}, {true, false}});
+    }
+    
+    public boolean evaluate(ZZCell nhc) { return evaluate(bStructure, nhc); }
+    
+    private boolean evaluate(ZZCell bElem, ZZCell nhc) {
+	String bt = bElem.getText();
+        p("belem:"+bt+" c:"+nhc.getText());
+	ZZCell arg1, arg2;
+        int i = 0, j = 0;
+	if(bOperators.containsKey(bt)) {
+	    // add exception handling here!
+	    arg1 = bElem.s(d_1); arg2 = bElem.s(d_2);
+            p("arg1:"+arg1.getText());
+            p("arg2:"+arg2.getText());
+            if(evaluate(arg1, nhc)) i = 1; 
+            if(evaluate(arg2, nhc)) j = 1;
+            p("i:"+i+" j:"+j);
+            boolean retv = ((boolean[][])bOperators.get(bt))[i][j];
+            p("RETV: "+retv);
+            return retv;
+	} else {
+	    // compare bElem (=categoryname) and c
+            p("TEST! "+nhc.getText()+" =?= "+bElem.getText());
+	    return testBelonging(nhc, bElem);
+	}
+    }
+
+    public abstract boolean testBelonging(ZZCell c, ZZCell category);
+
+}
+    
+
+
+