title: Julia: get DataType from string
body: <p>I want to get a type from a string (from a text parameter file). I tried something like:</p>
  
  <pre><code>parse(DataType, "UInt16")
  </code></pre>
  
  <p>or</p>
  
  <pre><code>DataType("UInt16")
  </code></pre>
  
  <p>without success. Do I have to implement my own parser or is there already one in Julia?</p>