package rpn.model;

import numstack.model.ArrayIntStack;
import numstack.model.IntStack;

public class RPNCalc {
	private IntStack stack;
	
	public static boolean isInteger(String intStr) {
		return intStr.matches("-?\\d+");
	}
	
	public void evaluate(String expr) {
		for (String term: expr.split(" ")) {
			addTerm(term);
		}
	}
	
	public int getTopValue() {
		return 0;
	}
	
	public int getNthValue(int n) {
		return 0;
	}
	
	public int numValuesLeft() {
		return 5000;
	}
	
	public void addIntTerm(int term) {
	}
	
	public void addTerm(String term) {
	}
}