title: Regex: Matching character set specific number of times
body: <p>Ok so this is likely a ridiculously stupid question but I can't seem to find a workable answer so please forgive my ignorance if the answer is obvious. All I would like is a Regex which will match a hex value exactly 8 times. So I've tried something like this:</p>
  
  <p><strong>My Regex:</strong>     </p>
  
  <pre><code> [0-9a-fA-F]{8}
  </code></pre>
  
  <p><strong>Sample Input:</strong></p>
  
  <pre><code> D651000000060D60FADF0DFCE080E020636263633534623231386339
  </code></pre>
  
  <p><strong>Sample Failing Input (where my given regex matches when I don't want it to):</strong></p>
  
  <pre><code> ........@%........$dc073bcc-6aa5
  </code></pre>
  
  <p>Yet for some reason this wont work for me. From what I understand the <code>{8}</code> should match the preceding regex 8 times...yet this doesn't seem to work in either C# or notepad++. </p>
  
  <p>Thanks in advance!</p>