title: vim fu, swapping parameters for a method call
body: <p>What is the most efficient way to swap two params for a method call in Vim? </p>
  
  <p>For example, I want to change: </p>
  
  <pre><code>call "hello mister 123", 2343
  </code></pre>
  
  <p>to:</p>
  
  <pre><code>call 2343, "hello mister 123" 
  </code></pre>
  
  <p><em>(Assume the cursor is at the beginning of the line.)</em></p>
  
  <p>Ideally the trick works for stuff like </p>
  
  <pre><code>call "hello, world" , "goodbye, world"
  </code></pre>