title: Haml/Twig in Symfony2
body: <p>I'm learning Symfony 2 and I decided to learn ow to implement Haml on my Twig templates.
  It works well, but I have a question.</p>
  
  <p>It is possible to write :</p>
  
  <pre><code>%span = article.author
  </code></pre>
  
  <p>It is NOT possible to write :</p>
  
  <pre><code>%span by = article.author
  </code></pre>
  
  <p>However, it is possible to write alternatively :</p>
  
  <pre><code>%span by #{ article.author }
  </code></pre>
  
  <p>I like the "= variable" syntax, and I don't like the idea of using two different syntaxes on a single template for the same action (display a variable value) on various lines in my template. And sorry for my bad english. :p</p>
  
  <p>Is there any way to write something like</p>
  
  <pre><code>%span by = article.author
  </code></pre>
  
  <p>Am I missing something here?</p>