title: Is there any way to prevent the display of unmatched xml tags using xslt?
body: <p>Here is a contrived example of an xml document.  In my real world case, the xml is fairly complex with multiple nested levels.</p>
  
  <blockquote>
  <pre><code>&lt;alphabet&gt;
  &lt;a&gt;A&lt;/a&gt;
  &lt;b&gt;B&lt;/b&gt;
  &lt;c&gt;C&lt;/c&gt; 
  ... and so on
  &lt;/alphabet&gt;
  </code></pre>
  </blockquote>
  
  <p>Using xslt, I want to transform the document so that only the vowels are printed. </p>
  
  <p>In my real world case, we're using empty template match tags to block the display.  But that's too verbose for my liking.</p>