package ch.bfh;

import ch.bfh.parser.ExpressionParser;
import java.util.Scanner;

public class Main {

    public static void main(String[] args){
        Scanner scanner = new Scanner(System.in);

        while (true) {
            CalculatorLexer cl = new CalculatorLexer();
            System.out.print("Type your expression: ");
            String expression = scanner.nextLine();

            try {
                cl.initLexer(expression);
                ExpressionParser ep = new ExpressionParser(cl);
                System.out.println(ep.getValue());
            } catch (Exception e) {
                System.out.println(e.getMessage());
            }
        }
    }
}