From: Brian Candler <b.candler@...>
Date: 2009-02-11T23:58:09+09:00
Subject: Re: Regexp ops: get rid of !=~?

Gary Yngve wrote:
> "foo" !=~ /bar/
> 
> does
> 
> "foo".!= (~bar)

Actually: "foo" != ~/bar/

> which doesn't produce an error, even though it's 
> basically
> garbage.
> Instead it fails silently by returning true (nil or an number are not
> strings).

The problem here is ~/bar/

This is an ugly Perlism in Ruby which hardly anybody ever uses anyway. 
Search for Regexp#~ in ri.

Personally, I would be very happy to lose this entirely, together with 
all the other implicit tests and side-effects on $_ (such as is done by 
Kernel#gets and IO#gets). Or at least have a flag to turn on this 
behaviour.

Regards,

Brian.
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