// testing the lexer generated by JLex

public class lexertest
{
    public static void main(String[] args) throws Exception
    {
	Yylex lexer = new Yylex(System.in);
	String token = "";
	System.out.print("Enter expression: ");
        while (!token.equals("EOF"))
            {
                token = lexer.next_token();
                System.out.print(token+"\t");
            }
        System.out.println("\nEnd of Input");
    } //main
}