title: iPhone URL encoding Problem
body: <p>Have a slight problem.  Trying to post XML to a server.  To do this, I have to encode the XML string in URL format.</p>
  
  <pre><code>NSString *encodedString = [NSString stringWithFormat:@"xmlValue=%@",[post stringByAddingPercentEscapesUsingEncoding: NSASCIIStringEncoding]];
  </code></pre>
  
  <p>That's what I have and it works for all the characters EXCEPT the '='.  This does not get converted to %3D.  Has anyone else ever had this problem before? Am I specifying the wrong encoding type?  I have tried "NSUTF8StringEncoding" as well.</p>
  
  <p>This is a little piece of the XML string:</p>
  
  <pre><code>@"&lt;xml-service application=\"broadcast\" type=\"REQUEST\"&gt;&lt;identity token=\"xxxxxxxx\".....
  </code></pre>
  
  <p>Any help would be appreciated!  Thanks </p>