title: case-insensitive matching in XPath?
body: <p>For example, for the XML below</p>
  <pre><code>&lt;CATALOG&gt;
      &lt;CD title=&quot;Empire Burlesque&quot;/&gt;
      &lt;CD title=&quot;empire burlesque&quot;/&gt;
      &lt;CD title=&quot;EMPIRE BURLESQUE&quot;/&gt;
      &lt;CD title=&quot;EmPiRe BuRLeSQuE&quot;/&gt;
      &lt;CD title=&quot;Others&quot;/&gt;
  &lt;CATALOG&gt;
  </code></pre>
  <p>How to match the first 4 records with xpath like <code>//CD[@title='empire burlesque']</code>. Is there xpath function to do this? Other solutions like PHP function are also accepted.</p>