package Calc;
import java_cup.runtime.*;
import Calc.*;
import Calc.Absyn.*;
import java.io.*;


  public class Interpret {
    public static void main(String args[]) throws Exception
    {
      Yylex l  = new Yylex(System.in);
      parser p = new parser(l) ;
      Calc.Absyn.Exp parse_tree = p.pExp() ;
      System.out.println(Interpreter.interpret(parse_tree)) ;
    }
  }

  /*

public class Interpret
{
  public static void main(String args[]) throws Exception
  {
    Yylex l = null;
    parser p;
    try
    {
      if (args.length == 0) l = new Yylex(System.in);
      else l = new Yylex(new FileReader(args[0]));
    }
    catch(FileNotFoundException e)
    {
     System.err.println("Error: File not found: " + args[0]);
     System.exit(1);
    }
    p = new parser(l);
    //    /* The default parser is the first-defined entry point. * /
    // You may want to change this. Other options are: * /
    try
    {
      Calc.Absyn.Exp parse_tree = p.pExp();
      System.out.println();
      System.out.println(Interpreter.interpret(parse_tree));
    }
    catch(Throwable e)
    {
      System.err.println("At line " + String.valueOf(l.line_num()) + ", near \"" + l.buff() + "\" :");
      System.err.println("     " + e.getMessage());
      System.exit(1);
    }
  }
}

*/