title: Match text excluding some part of matched text from result
body: <p>is this possible to exclude some text from result in regex?
  this is only a sample but show the problem:</p>
  
  <pre><code>23d14aaa17d19
  </code></pre>
  
  <p>and i need result whith 2 matches without "d"</p>
  
  <pre><code>2314
  1719
  </code></pre>
  
  <p>i try this </p>
  
  <pre><code>\d+(?:[a-z])\d+
  </code></pre>
  
  <p>but it exclude only from Groups collection not from matched result text
  result is </p>
  
  <pre><code>23d14
  17d19
  </code></pre>
  
  <p>is this possible with regex?</p>
  
  <p>PS. i read "manual" on stackoverflow but without success</p>