package com.imegumii.codevandocent;

/**
 * Write a description of class TestRegExp here.
 * 
*/

public class TestRegExp
{
    private RegExp expr1, expr2, expr3, expr4, expr5, a, b, all;

    public TestRegExp()
    {
        a = new RegExp("a");
        b = new RegExp("b");
        
        // expr1: "baa"
        expr1 = new RegExp("baa");
        // expr2: "bb"
        expr2 = new RegExp("bb");
        // expr3: "baa | baa"
        expr3 = expr1.or(expr2);
        
        // all: "(a|b)*"
        all = (a.or(b)).star();
        
        // expr4: "(baa | baa)+"
        expr4 = expr3.plus();
        // expr5: "(baa | baa)+ (a|b)*"
        expr5 = expr4.dot(all);
    }
    
    public void testLanguage()
    {
        System.out.println("taal van (baa):\n" + expr1.getLanguage(5));
        System.out.println("taal van (bb):\n" + expr2.getLanguage(5));
        System.out.println("taal van (baa | bb):\n" + expr3.getLanguage(5));

        System.out.println("taal van (a|b)*:\n" + all.getLanguage(5));
        System.out.println("taal van (baa | bb)+:\n" + expr4.getLanguage(5));
        System.out.println("taal van (baa | bb)+ (a|b)*:\n" + expr5.getLanguage(6));
    }
}