title: Compare text and nodes after a certain node
body: <p>I try to figure out how to address a certain part of a closer-statement of a letter. In this xml-file</p>
  
  <pre><code> &lt;?xml version="1.0" encoding="UTF-8"?&gt;
  &lt;a&gt;
      &lt;closer&gt;regards&lt;lb/&gt;&lt;signed&gt;William&lt;/signed&gt;&lt;/closer&gt;
      &lt;closer&gt;until next tuesday&lt;lb/&gt;regards&lt;lb/&gt;&lt;signed&gt;William&lt;/signed&gt;&lt;/closer&gt;
      &lt;closer&gt;until next tuesday&lt;lb/&gt;regards &lt;signed&gt;William&lt;/signed&gt;&lt;/closer&gt;
  &lt;/a&gt;
  </code></pre>
  
  <p>I am positioned at the last linebreak (lb) and want to know whether there is more text following than just the signature. I fruitlessly tried things like  </p>
  
  <pre><code>//substring-after(parent::closer, lb[last()]) = signed
  </code></pre>
  
  <p>But it did not work. How do I properly test for that?</p>