title: Regex accent insensitive?
body: <p>I need a <strong>Regex</strong> in a <em>C#</em> program.</p>
  
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  <p>I've to capture a name of a file with a  specific structure.</p>
  
  <p>I used the <code>\w</code> char class, but the problem is that this class doesn't match any accented char.</p>
  
  <p>Then how to do this? I just don't want to put the most used accented letter in my pattern because we can theoretically put every accent on every letter.</p>
  
  <p>So I though there is maybe a syntax, to say we want a case insensitive(or a class which takes in account accent), or a <strong>Regex</strong> option which allows me to be case insensitive.</p>
  
  <p>Do you know something like this?</p>
  
  <p>Thank you very much</p>