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

//
//
// WidthLimitedOutputStream
//
// A width limited output stream provides a string
// printing method that will automatically insert
// line breaks, wrapping text to the next line.
//
// Last modification date : November 13, 1997
//
public class WidthLimitedOutputStream 
{
	// Output stream
	private PrintStream m_out;
	private int width;

	// WidthLimitedOutputStream constructor
	public WidthLimitedOutputStream ( OutputStream out, int width )
	{
		m_out = new PrintStream (out);
		this.width = width;
	}

	/** string printing method that will automatically insert
        line breaks. */
	public void print ( String str )
	{
		// Start at zero
		int currentWidth =  0;

		// Create a string tokenizer object
		StringTokenizer tokenizer = new StringTokenizer ( str );

		// While words remain
		while ( tokenizer.hasMoreTokens() )
		{
			// Get the next token
			String token = tokenizer.nextToken();

			// If word would exceed width limit
			if (currentWidth + token.length() >= width)
			{
				// Print a newline
				m_out.println ();
				currentWidth = 0;
			}

			// Print token
			m_out.print (token + " ");

			currentWidth += token.length();
		}
		m_out.flush();
	}

	/** string printing method that will automatically insert
        line breaks. The println version appends a newline. */
	public void println (String str )
	{
		print (str);
		m_out.println();
	}

	/** Prints a blank line */
	public void println ()
	{
		m_out.println();
	}
}