package rpn.basic;

import java.util.Hashtable;
import rpn.Calculator;

public class WordItem extends Item {
	String s;
	
	public WordItem(Calculator ca, String s) {
		super(ca);
		this.s = s;
	}
	
	public void exec() {
		Item x = ca.lookup(s);
		if (x != null) {
			x.exec();
		} else {
			ca.error(this, CalcErr.Undefined);
		}
	}
	
	public String toString() {
		return(s);
	}
}