title: Regular Expression to match numbers inside parenthesis inside square brackets with optional text
body: <p>Firstly, I'm in C# here so that's the flavor of RegEx I'm dealing with.  And here are thing things I need to be able to match:</p>
  
  <pre><code>[(1)]
  </code></pre>
  
  <p>or</p>
  
  <pre><code>[(34) Some Text - Some Other Text]
  </code></pre>
  
  <p>So basically I need to know if what is between the parentheses is numeric and ignore everything between the close parenthesis and close square bracket.  Any RegEx gurus care to help?</p>