--- "John W. Krahn" <[EMAIL PROTECTED]> wrote:
> Ron Smith wrote: > Hans Meier (John Doe) wrote: > >> > >>The if-else could be shortened to (untested, so > >>please check): > >> > >>die "Bla" unless > >>($userIn)=$userIn=~/^\s*((?:\d+\s*?)+)\s*$/; > > > > Right; a lot shorter. Why, the parentheses around > > $userIn? > > Context. Without the parentheses you have scalar > context but with the > parentheses you have list context. In scalar > context the match operator > returns 'true' or 'false' but in list context it > returns the contents of all > capturing parentheses in the pattern. Thanks. > > > John > -- > use Perl; > program > fulfillment > > -- > To unsubscribe, e-mail: > [EMAIL PROTECTED] > For additional commands, e-mail: > [EMAIL PROTECTED] > <http://learn.perl.org/> > <http://learn.perl.org/first-response> > > > Ron Smith [EMAIL PROTECTED] -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] <http://learn.perl.org/> <http://learn.perl.org/first-response>
