title: Can you translate php function quoted_printable_decode() to an NSString-based, objective-C function / category method?
body: <p>In <a href="http://php.net/quoted_printable_decode" rel="nofollow noreferrer">http://php.net/quoted_printable_decode</a>, I found ways to do it using preg_replace. Anyone who knows any code that could convert a normal NSString to something RFC 2045 section 6.7?</p>
  
  <p>Thanks in advance!</p>