title: Regex: Matching all words EXCEPT those inside of parenthesis (C#)
body: <p>So given:</p>
  
  <pre><code>COLUMN_1, COLUMN_2, COLUMN_3, ((COLUMN_1) AS SOME TEXT) AS COLUMN_4, COLUMN_5
  </code></pre>
  
  <p>How would I go about getting my matches as:</p>
  
  <pre><code>COLUMN_1
  COLUMN_2
  COLUMN_3
  COLUMN_4
  COLUMN_5
  </code></pre>
  
  <p>I've tried:</p>
  
  <pre><code>(?&lt;!(\(.*?\)))(\w+)(,\s*\w+)*?
  </code></pre>
  
  <p>But I feel like I'm way off base :(  I'm using regexstorm.net for testing.</p>
  
  <p>Appreciate any help :)</p>