title: How to search in a string to find a pattern
body: <p>How would I go about finding the longest sequence of vowels?  For example:</p>
  <pre><code>string &lt;- &quot; asdiubvodjehbuoiewndhwbksh&quot;
  </code></pre>
  <p>The output should be <code>uoie</code>, the longest sequence of vowels.  Does anyone know how to do this?  Thanks in advance!</p>