/**
 * WordCounter.java
 *
 * @author Jeff Ondich
 * @version 10/5/05
 *
 * Counts the words in the file specified on the command line.
 * This one uses a word-cleaning method to strip punctuation and other
 * wacky characters.
 */

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

public class WordCounter
{
    public static void main( String[] args ) throws FileNotFoundException
    {
        if( args.length != 1 )
        {
            System.err.println( "Usage: java WordCounter filename" );
            return;
        }

        int nWords = 0;
        Scanner in = new Scanner( new File( args[0] ) );

        while( in.hasNext() )
        {
            String word = cleanWord( in.next() );
            if( word.length() > 0 )
            {
                nWords++;
                System.out.println( word );
            }
        }

        System.out.println();
        System.out.println( "There were " + nWords + " words in the input." );
    }


    public static String cleanWord( String dirtyWord )
    {
        String cleanWord = "";

        int length = dirtyWord.length();
        for( int k=0; k < dirtyWord.length(); k++ )
        {
            char ch = dirtyWord.charAt( k );
            if( Character.isLetter( ch )  ||  ch == '-'  ||  ch == '\'' )
                cleanWord = cleanWord + ch;
        }

        return cleanWord;
    }
}