From: William James <w_a_x_man@...>
Date: 2007-09-25T05:30:06+09:00
Subject: Re: Favorite idiom for "keep doing this until it returns nil/false"

On Sep 24, 2:27 pm, Phrogz <phr...@mac.com> wrote:
> I want to keep running gsub! on a string until it returns nil. How do
> you prefer to do this?
>
> true while str.gsub!( ... )
>
> while str.gsub!( ... ); end
>
> begin
>   done = !str.gsub!( ... )
> end until done
>
> begin
>   made_replacement = str.gsub!( ... )
> end while made_replacement
>
> ...some other way?

Proper devotion to symmetry leads us to the knowledge that the
sacred bang character must always be paired.

until !str.gsub!( ... ); end