title: Summing numbers with comma as decimal separator in XSLT?
body: <p>I have an XML file where the number are comma-separated</p>
  
  <pre><code>&lt;foo&gt;
    &lt;bar val="1,23"/&gt;
    &lt;bar val="4,56"/&gt;
    &lt;bar val="7,89"/&gt;
  &lt;/foo&gt;
  </code></pre>
  
  <p>I would like to make a sum over <code>/foo/bar/@val</code> values in XSLT, but I am a bit stuck the formatting. Does anyone knows what would be the proper syntax?</p>