title: Regex: Select Everything Else
body: <p>I would like to select everything what's not <code>[a-z0-9 ]</code></p>
  
  <p>So if the string is:</p>
  
  <blockquote>
    <p>Hello! How are you Mr. 007?</p>
  </blockquote>
  
  <p>Then the result would be: <code>!,?,.</code></p>