title: How to concatenate data in XSL?
body: <p>I have an XML file with the following structure:</p>
  
  <pre><code>&lt;root&gt;
      &lt;level1&gt;
          &lt;level2&gt;
              &lt;value&gt;A&lt;/value&gt;
              &lt;value&gt;B&lt;/value&gt;
              &lt;value&gt;C&lt;/value&gt;
              &lt;value&gt;D&lt;/value&gt;
              &lt;value&gt;E&lt;/value&gt;
              &lt;value&gt;F&lt;/value&gt;
          &lt;/level2&gt;
      &lt;/level1&gt;
  &lt;/root&gt;
  </code></pre>
  
  <p>Guess I want to concatenate only the first three values in XSL in order to get ABC. How do I do it?</p>