parse VT100 text with colors (for regex)

Question

I'm using Apache TelnetClient to connect over telnet and want to change the encoding to plain text.

In trying to process VT100 responses, however String response comes with color. How do you remove the color encodings to get the plain text?

I end up with fragments like (just for illustration):

You say: confusing the hell out of bob.
482 636 [w]Sep 13, 2013 8:13:13 PM telnet.player.RegexWorker parseAndUpdatePlayerCharacter
INFO: You say: confusing the hell out of bob.
482 636 [w]
Sep 13, 2013 8:13:13 PM telnet.player.RegexWorker parseAndUpdatePlayerCharacter
INFO: 0mYou
Sep 13, 2013 8:13:13 PM telnet.player.RegexWorker parseAndUpdatePlayerCharacter
INFO: say

The problem being that the CSI color codes come along for the ride. How can I convert the String encoding from VT100 to plain text?

Java code sample for illustration:

package examples;

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import java.io.IOException;
import org.apache.commons.net.telnet.TelnetClient;

/***
 * This is an example of a trivial use of the TelnetClient class.
 * It connects to the weather server at the University of Michigan,
 * um-weather.sprl.umich.edu port 3000, and allows the user to interact
 * with the server via standard input.  You could use this example to
 * connect to any telnet server, but it is obviously not general purpose
 * because it reads from standard input a line at a time, making it
 * inconvenient for use with a remote interactive shell.  The TelnetClient
 * class used by itself is mostly intended for automating access to telnet
 * resources rather than interactive use.
 * <p>
 ***/

// This class requires the IOUtil support class!
public final class weatherTelnet
{

    public final static void main(String[] args)
    {
        TelnetClient telnet;

        telnet = new TelnetClient();

        try
        {
            telnet.connect("rainmaker.wunderground.com", 3000);
        }
        catch (IOException e)
        {
            e.printStackTrace();
            System.exit(1);
        }

        IOUtil.readWrite(telnet.getInputStream(), telnet.getOutputStream(),
                         System.in, System.out);

        try
        {
            telnet.disconnect();
        }
        catch (IOException e)
        {
            e.printStackTrace();
            System.exit(1);
        }

        System.exit(0);
    }

}

However, depending on the server you connect to, the response won't be plain-text -- the code above is just for illustration purposes to show usage for ApacheTelnet.

Alternately, is it possible to set the Apache TelnetClient instance to only accept plain text through the TERMINAL_TYPE field? However, this field is final...

The difficult is to run regex on VT100 colorized text -- how do you ignore the colors? Or, work with just the plain text string?