title: Regular expression remove outside quotation marks
body: <p>I have a file that is formatted like this:</p>
  
  <pre><code>"A", "B", "test "C"", "D"
  </code></pre>
  
  <p>I'm trying to get this output with a regular expression:</p>
  
  <pre><code>A, B, test "C", D
  </code></pre>
  
  <p>I'm trying to remove "outside" quotation marks</p>
  
  <p>This is my regular expression: <code>("(.*?)",|,"(.*?)")</code> but it doesn't work properly if a string is formatted like this <code>"test "C""</code></p>