From: Wes Gamble <weyus@...>
Date: 2009-06-27T04:01:58+09:00
Subject: Re: Is there a way to abandon a gsub if you're using a block?

So the way to read this:

(?:.(?!<a))*?

would be

"match on any character as long as it isn't followed by a '<a'"

Why do you need the positive lookahead assertion though - to ensure that 
the characters aren't consumed in case of a bad match?

Wes
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