title: Interpolating variables within already interpolated strings in angular
body: <p>I have the following arrangement to fetch helptexts from a single Coffeescript file. </p>
  
  <p>Coffeescript:</p>
  
  <pre><code>help.ex: '{{example.variable}} identifies enterprise data centers'
  </code></pre>
  
  <p>HAML:</p>
  
  <pre><code>%example-directive(attr='{{help.ex}}')
  </code></pre>
  
  <p>Now the example.variable is accessible but it is not getting interpolated on the view. This I guess is happening because the string as a whole is getting interpolated and compile is not running on the variables within. How do I get around this?</p>