title: Cocoa API - Does it contain a diff api?
body: <p>I'm wondering if there is a diff API in Cocoa, I've attempted to google it but its not bring back any results that are useful.</p>
  
  <p>If there isn't an API for this would it be better to call <code>diff</code> from /usr/bin/ or to write my own diff.</p>
  
  <p>All I need it for is text-files with a possibility of branching out into binaries and folders later.</p>
  
  <p>Thanks</p>
  
  <p>James</p>