From: Jason Sweat <jason.sweat@...>
Date: 2005-03-20T01:32:39+09:00
Subject: Re: strip and its evil brother strip!

On Sun, 20 Mar 2005 01:07:15 +0900, Glenn Parker
<glenn.parker@comcast.net> wrote:
> Aquila wrote:
> > Possibly a stupid question: why does strip! of a string with a single
> > character in it give nil and strip the single character?
> > I don't understand the behaviour of strip!...
> 
> Looks like a bug to me.
> 
> $ ruby -e 'p " x ".strip!'
> "x"
> 
> $ ruby -e 'p "x".strip!'
> nil

This came up on another thread recenly. It is a legacy behavior of the
*! functions that they return nil if nothing changed.

Regards,
Jason
http://blog.casey-sweat.us/