From: Robert Klemme <bob.news@...>
Date: 2004-09-23T23:59:32+09:00
Subject: Re: whitespace string only


"ts" <decoux@moulon.inra.fr> schrieb im Newsbeitrag
news:200409231451.i8NEphE08333@moulon.inra.fr...
> >>>>> "A" == Ara T Howard <Ara.T.Howard@noaa.gov> writes:
>
> A>    if s.strip.empty?
> A>      # the string is whitespace only
>
> svg% ruby -e 'a = " \000\000"; p "OK" if a.strip.empty?'
> "OK"
> svg%
>
> svg% ruby -e 'a = " \000\000 "; p "OK" if a.strip.empty?'
> svg%

Also I'd say the disadvantage of "a.strip.empty?" is that it creates a
copy of the string (=> a new instance) which is generally slower than a
simple regexp check.

Kind regards

    robert