title: How to convert CFStringRef to NSString?
body: <pre><code>NSString *aNSString;
  CFStringRef aCFString;
  aCFString = CFStringCreateWithCString(NULL, [aNSString UTF8String], NSUTF8StringEncoding);
  aCFString = CFXMLCreateStringByUnescapingEntities(NULL, aCFString, NULL);
  </code></pre>
  
  <p>How can I get a new <code>NSString</code> from <code>aCFString</code>?</p>