title: Using parenthesis in Regular Expressions pattern
body: <p>I've a string "This text has some (text inside parenthesis)". So i want to retrieve the text inside the parenthesis using Regular Expressions in C#. But parenthesis is already a reserved character in regular expressions. So how to get it?</p>
  
  <p><strong>Update 1</strong> </p>
  
  <p>so for the text <strong>"afasdfas (2009)"</strong></p>
  
  <p>I tried <code>(.)/s((/d+))</code> and <code>(.) (\d+)</code> and <code>(.*)/s((/d/d/d/d))</code>. None of them is working. Any ideas?</p>