title: How to find occurrence of a format in NSString
body: <p>I am reading a feed, and need to find the occurrence of a string format, for example, in "Feed for 03/02/2012". Now this date will always be of the format: %@/%@/%@. I need to find is this format occurs, and thus extract the date. The date and month can be any, so i don't have a specific date to search for. I searched in the docs, could not find it. Only option possible to me seems to take all 12 combinations of a month like "/12/", and find the occurrence of any of these.</p>
  
  <p>Is there any better approach?</p>