From: Joel VanderWerf <vjoel@...>
Date: 2009-06-09T07:09:13+09:00
Subject: Re: strip doesn't take a character set?

> I wanna do something like newstr = str.strip(/\D/)
>
> I know I could do newstr = str.sub(/^\D*/,'').sub(/\D*$/,''), but is there
> any
> better way?

Use #slice / #[]:

irb(main):006:0> s = "aaa111bbb222ccc"
=> "aaa111bbb222ccc"
irb(main):007:0> s[/\A\D*(.*)\D*\z/, 1]
=> "111bbb222ccc"