title: Diacritic-insensitive filtering with Realm Swift
body: <p>I have an app and I would like to know if it is possible that if I try to find a street based on its name, for example "ceska", my app can match a street whose name contains diacritics, such as "Česká".</p>
  
  <p>I've tried using:</p>
  
  <pre><code>let predicate = NSPredicate(format: "name contains[c] %@", searchText)
  </code></pre>
  
  <p>When using <code>name contains[d]</code> it doesn't work.</p>