From: Philip Hallstrom <ruby@...>
Date: 2007-06-29T04:00:00+09:00
Subject: Re: Help with regular expression

> How can I make a regular expression that will match everything, unless
> it contains a certain string then it will match nothing.
>
> For instance, let's say it should not match "bar", then:
>
> "foo" => "foo"
> "bar " => nil
> "foobar" => nil

some_string !~ /bar/

-philip