title: NSRegularExpression omitting certain character
body: <p>So I had the following regex:</p>
  
  <pre><code>@"(#|@)\\S+"
  </code></pre>
  
  <p>however the \S here includes # and @ as well. How do I make this regex so that it's \S but not including # or @?</p>
  
  <p>Basically I want a non white space character excluding # and @</p>