title: Regular expression for parsing
body: <p>I'm looking for a regex in order to transform something like</p>
  
  <pre><code>{test}hello world{/test} and {again}i'm coming back{/again} in hello world i'm coming back. 
  </code></pre>
  
  <p>I tried <code>{[^}]+}</code> but with this regex, I can't have only what I have in the test and again tags. Is there a way to complete this regex ?</p>