title: Regex to catch "-" character
body: <p>I have this string :</p>
  
  <pre><code>Ümraniye Tapu Müdürlüğünde ve Ümraniye Belediyesi İmar Müdürlüğünde 20.08.2014 onay tarih ve 254 sayılı mimari projesi incelenmiştir.
  </code></pre>
  
  <p>I'm getting datetime : like this :</p>
  
  <pre><code>t = DateTime.Parse(Regex.Match(mimaristring, @"\d(\d+)[-.\/](\d+)[-.\/](\d+)").Value);
  </code></pre>
  
  <p>I'm trying to get 254 like this :</p>
  
  <pre><code>num = Regex.Match(mimaristring,  @"(?&lt;!\d\.)\b\d+(?:/\d+)?\b(?!\.\d)").Value;
  </code></pre>
  
  <p>I can catch <strong>254</strong> or <strong>123/456</strong> but now I also need to catch <strong>123-456</strong>. How can I catch that? Thanks. </p>