From: Josh Cheek <josh.cheek@...>
Date: 2012-01-14T21:51:57+09:00
Subject: Re: negative grep

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On Sat, Jan 14, 2012 at 6:06 AM, Robert Klemme
<shortcutter@googlemail.com>wrote:

>
> It's impossible because
>
>  - you cannot change behavior of !
>

You can do this (I'm not advocating it), but IDK how you would actually
negate it.

class Regexp
  def !@
    /some sort of negation of #{source}/
  end
end

abc = /abc/
!abc # => /some sort of negation of abc/

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