Android related patches

simpify meta-processing.

packages/swig/java/JavaYAP.java.old

@@ -0,0 +1,130 @@
+//package pt.up.yap;
+//
+import java.io.* ;
+import pt.up.yap.* ;
+class JavaYAP {
+
+  YAPQuery q;
+  YAPEngine eng;
+  InputStreamReader istream = new InputStreamReader(System.in) ;
+  BufferedReader bufRead = new BufferedReader(istream) ;
+
+
+
+  Boolean runQuery(String str)
+  {
+    try
+      {
+	q = eng.query( str );
+      } catch(Exception e){
+      System.out.println("Exception thrown  :" + e);
+      return false;
+    }
+    return continueQuery();
+  }
+
+  Boolean continueQuery()
+  {
+    try
+      {
+         Boolean rc;
+
+        rc = q.next();
+        if (!rc) {
+          q.close();
+          return false;
+        }
+        YAPTerm vs = YAPTerm( q.namedVars() );
+	System.out.println("Another one "+vs);
+        while(!vs.nil()){
+           eq = YAPTerm( vs.car() );
+          //outputText.append(Integer.toString(i) + ": " + eq.text() );
+          System.out.println(":\t" + eq.getArg(1).text() + " = " + eq.getArg(2).text() +"\n" );
+          vs = vs.cdr();
+        }
+	return true;
+      } catch(Exception e){
+      System.out.println("Exception thrown  :" + e);
+      q.close();
+      return false;
+    }
+  }
+
+  public void top_query()
+  {
+    eng = new YAPEngine(  );
+    JavaCallback callback = new JavaCallback( "The man walked on the moon"  );
+    // set the Java Callback
+    eng.setYAPCallback(callback);
+    System.out.println("Welcome To a simple Java YAP Program");
+    try {
+      String string;
+      Boolean rc;
+      System.out.println("Query? ");
+      // Get Query
+      while ((string = bufRead.readLine()) == null) {
+	// skip empty lines
+      }
+      // first solution
+      rc = runQuery(string);
+      // no first solution, exit loop
+      if (!rc) {
+	System.out.println("No Dice, but Better Luck Next Time ");
+	return;
+      }
+      // alreadyone solution
+      while (true) {
+	System.out.print("More Solutions enter ';' ");
+	while ((string = bufRead.readLine()) == null) {
+	}
+	if (string.charAt(0) != ';' )
+	  return;
+	rc = continueQuery();
+	if (!rc)
+	  return;
+      }
+    }
+    catch (IOException err) {
+      System.out.println("Error reading line");
+    }
+
+  }
+
+  public static void main(String args[])
+  {
+    System.loadLibrary("gmp");
+    System.loadLibrary("Yap");
+    System.loadLibrary("YAP++");
+    System.loadLibrary("JAVAYap");
+
+    JavaYAP y = new JavaYAP();
+
+    while( true ) {
+      y.top_query();
+    }
+
+    // System.out.println("Thanks for trying a simple Java YAP Program");
+
+  }
+}
+
+
+
+class JavaCallback extends YAPCallback
+{
+  String callbacks;
+
+  public JavaCallback( String outputText )
+  {
+    super();
+    callbacks += outputText;
+  }
+
+  public void run(String s)
+  {
+    //callbacks.append(s);
+  }
+
+  private static final String TAG = "JavaCallback";
+
+}