Some work on Expression and Operand.

Operand.h

@@ -0,0 +1,35 @@
+#ifndef __Operand_h__
+#define __Operand_h__
+
+#include "ZString.h"
+
+namespace jet {
+
+   class Operand {
+
+    public:
+      Operand(coreutils::ZString &in);
+
+      bool isNumber();
+      bool isInteger();
+      bool isFloat();
+      bool isString();
+      bool isVariable();
+
+
+      ///
+      /// boolean is set by internal processes to return the boolean
+      /// equivilent value.
+      ///
+      
+      bool boolean;
+      
+    private:
+//      dataType enum ={};
+      double doubleValue;
+      
+
+   };
+}
+
+#endif