title: How do I match a string that does not contain X with ColdFusion regular expressions?
body: <p>I asked <a href="https://stackoverflow.com/questions/3407453/regular-expressions-in-coldfusion">this question</a> earlier, but it got a negative vote, so I'm rewording it.
  I have:</p>
  
  <pre><code>&lt;cfset myExpression = "X"&gt;
  #REFind(myExpression,myString)#
  </code></pre>
  
  <p>I need to change myExpression so that it returns a value other than zero if there is NOT an X in myString, and a 0 if there is an X in myString.</p>