title: Can't reference capture group in Notepad++ regex search and replace
body: <p>Using Notepad++ v6.5.5</p>
  
  <p>I have the following regex: </p>
  
  <pre class="lang-none prettyprint-override"><code>((?&lt;=,)[,\ \/\-#\w]{2,}(?=,[0-9]))
  </code></pre>
  
  <p>I'm trying to capture the text <code>Dow Corning / Molykote 111,  Valve Lubricant</code> in the following row:</p>
  
  <pre class="lang-none prettyprint-override"><code>111,Dow Corning / Molykote 111,  Valve Lubricant,25.000000,Y,46.010000,1,1 MSRP
  </code></pre>
  
  <p>It captures just fine, but I can't seem to reference the replace group.</p>
  
  <p>I've tried the following:</p>
  
  <pre><code>"$0"
  "$1"
  "$2"
  "$3"
  "\0"
  "\1"
  "\2"
  "\3"
  \1 = "\1"
  </code></pre>
  
  <p>And I've also moved the parentheses to inside of the lookahead and lookbehind:</p>
  
  <pre class="lang-none prettyprint-override"><code>(?&lt;=,)([,\ \/\-#\w]{2,})(?=,[0-9])
  </code></pre>
  
  <p>I attempted to replace the text with the following gibberish:</p>
  
  <pre><code>ansfnasflknsf
  </code></pre>
  
  <p>Nothing is being replaced.  Not sure what's going on, really.  I can use find/replace just fine with plain text, but not regex.</p>
  
  <hr>
  
  <p>Gah, just tried v6.4.5 and it still didn't work.</p>
  
  <p>If someone gets this to work, can they let me know what version they're using?</p>
  
  <hr>
  
  <p>The following regex is a little better for capturing what I need:</p>
  
  <p><code>((?&lt;=,)(?&lt;!\ )[,\ \/\-#\w]{2,}(?=,[0-9\.]+))</code></p>