From: Phrogz <phrogz@...>
Date: 2009-10-31T07:30:05+09:00
Subject: Re: How do you get the tail end of a string?

On Oct 30, 5:11 am, Bertram Scharpf <li...@bertram-scharpf.de> wrote:
> Am Freitag, 30. Okt 2009, 13:25:05 +0900 schrieb Michael W. Ryder:
> > Michael W. Ryder wrote:
> >> Just Another Victim of the Ambient Morality wrote:
> >>>     I'm actually hoping this is an embarrassing question but how do you
> >>> get the tail end of a string?  All I've figured out is this:
>
> >>> index = 4
> >>> string[index, string.size - index]
>
> >>>     ...but surely there's a better way.
>
> >> You mean like string[-1]?
>
> > I'm sorry, I missed the part about the index number of characters.  Try
> > string[-index, index].
>
> That's really ugly. You shouldn't have to mention `index' twice.
> I would even support a language extension to solve this problem.

No need for any extensions.

irb(main):001:0> "123456"[-4..-1]
=> "3456"