title: remove everything before or after a special character
body: <p>I´m trying to change a list given by a RSS feed.
  The feed displays it like:</p>
  
  <pre><code>&lt;ul&gt;
      &lt;li&gt;
          &lt;a title="Posted " href="" target="_blank"&gt;
              Chris Liebing in Castellaneta Marina - 21 June
         &lt;/a&gt;
          &lt;p&gt;
             Chris Liebing, Clorophilla, Chlorophilla, Castellaneta Marina, Italy, 2014-06-21 
          &lt;/p&gt;
      &lt;/li&gt;
  &lt;/ul&gt;
  </code></pre>
  
  <p>The Result should look like:</p>
  
  <pre><code>&lt;ul&gt;
      &lt;li&gt;
          &lt;a title="Posted " href="" target="_blank"&gt;
              21 June
         &lt;/a&gt;
          &lt;p&gt;
              Clorophilla, Chlorophilla, Castellaneta Marina, Italy 
          &lt;/p&gt;
      &lt;/li&gt;
  &lt;/ul&gt;
  </code></pre>
  
  <p>I have to get the Date to the left and hide the Artist´s name (Chris Liebing) of the paragraph. Also to get rid of the last date 2014-06-21.
  There will be more lists displayed for different Artists, that´s why I thougt it´s the best
  to get rid of everything before the "-" in the link and hide everything before the first and after the last "," in the paragraph.</p>