title: NSPredicate for NSString With Custom Format
body: <p>I'd like to use NSPredicate to match NSString but I'm having trouble getting started. My goal is to match certain NSStrings that contain the formats of.</p>
  
  <ol>
  <li>be---</li>
  <li>be-tt</li>
  <li>-----g</li>
  </ol>
  
  <p>If anyone has simple examples that would be greatly appreciated.</p>