title: XSL substring-after last occurrence of string
body: <p>Is it possible in XSL to substring from the last occurrence of some string to the end? </p>
  
  <p>For example, I have some string: </p>
  
  <pre><code>xxx/yyy/zzz/xxx/www
  </code></pre>
  
  <p>I want to get substring from the last occurrence of '/' to the end: </p>
  
  <pre><code>www
  </code></pre>
  
  <p>If I use substring-after("xxx/yyy/zzz/xxx/www", "/") I get:</p>
  
  <pre><code>yyy/zzz/xxx/www
  </code></pre>
  
  <p>It's not what I want. Could you please advise? </p>