title: NSAttributedString from localized string with format specifier
body: <p>I have a localized string:</p>
  
  <pre><code>"%@ some text" = "%@ some text";
  </code></pre>
  
  <p>The format specifier <code>%@</code> may appear in any location in the localized string.</p>
  
  <p>The problem is this string should be an <code>NSAttributedString</code>; the <code>%@</code> replacement and the rest of the text should have different attributes. How can I solve this issue?</p>