ut</a></li>

          <li><a href="#run2">Run the Regex Checker to verify that the
          error is corrected</a></li>

          <li><a href="#runex2">Run the example with an invalid regular
          expression to see the warning</a></li>
        </ol>
      </div>
    </div>

    <div class="section">
      <div id="regexexample">
        <h4>1. The RegexExample program</h4>

        <p>If you have not already done so, download
          <a href="../sourcefiles.zip">the source files</a> for the tutori