From: Terry Poulin <bigboss64@...>
Date: 2007-09-27T08:50:13+09:00
Subject: Re: Favorite idiom for "keep doing this until it returns nil/false"

Phrogz 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?
>
>
>

Having been *gotten* accustomed to the

while (!expr) {
        do_this();
}

way of writing things, I would probably use this in ruby:

until str.gsub!( ... ) end


Generally, I write what ever I feel works when I am testing. The try to refine
it into as clear and concise a manor as I can before I finish the prototype.


TerryP.


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