first commit

hrmsEjb/org/nfunk/jep/function/Logical.java

@@ -0,0 +1,42 @@
+package org.nfunk.jep.function;
+
+import java.util.Stack;
+import org.nfunk.jep.ParseException;
+
+public class Logical extends PostfixMathCommand {
+  int id;
+  
+  public static final int AND = 0;
+  
+  public static final int OR = 1;
+  
+  public Logical(int paramInt) {
+    this.id = paramInt;
+    this.numberOfParameters = 2;
+  }
+  
+  public void run(Stack paramStack) throws ParseException {
+    checkStack(paramStack);
+    Number number1 = (Number)paramStack.pop();
+    Number number2 = (Number)paramStack.pop();
+    if (number2 instanceof Number && number1 instanceof Number) {
+      boolean bool;
+      double d1 = ((Number)number2).doubleValue();
+      double d2 = ((Number)number1).doubleValue();
+      switch (this.id) {
+        case 0:
+          bool = (d1 != 0.0D && d2 != 0.0D) ? true : false;
+          break;
+        case 1:
+          bool = (d1 != 0.0D || d2 != 0.0D) ? true : false;
+          break;
+        default:
+          bool = false;
+          break;
+      } 
+      paramStack.push(new Double(bool));
+    } else {
+      throw new ParseException("Invalid parameter type");
+    } 
+  }
+}