/*
	File:	sqls.java
	square list

	yanushka
 */

import java.util.*;
import java.io.*;

/** 	The class Test creates a square list test object.
 */
class Test
{
    public static void main( String [] args )
    {
	new SQTest();
    }
}

/**	 The class SQTest manages a test of a square list data structure.
 */
class SQTest
{
    private static final String NL = "\n",
                                DELIMITERS = "\\p{Punct}+|\\p{Blank}+",
                                DEFAULT_FILE = "sq.java";

    private final static int	BASE = 150,
				MAX = 200;

/**	Construct a square list test object.
 */
    public SQTest()
    {
	testInts();
	testWords( DEFAULT_FILE );
    }

/**	Test a square list of integers with a random number generator.
 */
    public void testInts()
    {
	SquareList< Integer > sl = new SquareList< Integer >();
	Random	rand = new Random();
	int	curr;

	for ( int i = 0; i < MAX; i++ ) {
	    curr = rand.nextInt( BASE );
//	    sl.add( curr );

	    if ( ! sl.add( curr ) )
		sl.remove( curr );

	    System.out.println( sl );
	}
    }

/**	Test a square list of words with a text file.
 */
    public void testWords( String fileName )
    {
	try {
	    SquareList< String > slW = new SquareList< String >();
	    Scanner		sc = new Scanner( new File( fileName ) ),
				lSc;
	    String 		nextLine, token; 

// 		Read a line.
	    while ( sc.hasNextLine() ) {
	        nextLine = sc.nextLine();
//			Parse nextLine.
	        lSc = new Scanner( nextLine );
	        lSc.useDelimiter( DELIMITERS );
	        while ( lSc.hasNext() ) {
		    token = lSc.next().toLowerCase();
		    if ( token.length() > 0 )
//		        slW.add( token );
		        if ( ! slW.add( token ) )
			    slW.remove( token );
	    	    System.out.println( slW );
	        }
	    }
	    sc.close();
	} catch( FileNotFoundException ie ) {
	    ie.printStackTrace();
	}
    }
}