From: Brian Candler <b.candler@...>
Date: 2010-09-16T23:22:28+09:00
Subject: Re: How the regular expression to match "//"?

>  if line =~ /^////.*/

if line =~ /^\/\//

if line =~ %r{^//}

(note that the .* does nothing in your original regexp, i.e. it can be 
removed without changing the behaviour)
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