title: Case insensitive Regex without using RegexOptions enumeration
body: <p>Is it possible to do a case insensitive match in C# using the Regex class without setting the RegexOptions.IgnoreCase flag?</p>
  
  <p>What I would like to be able to do is within the regex itself define whether or not I want the match operation to be done in a case insensitive manner.</p>
  
  <p>I would like this regex, <code>taylor</code>, to match on the following values:</p>
  
  <ul>
  <li>Taylor</li>
  <li>taylor</li>
  <li>taYloR</li>
  </ul>