On 8 May 2010 13:35, Harry Putnam <rea...@newsguy.com> wrote:
> I'm curious about one thing I see there:
>
> `/\A\d+\z/ ' as opposed to `/^\d+$/'
>
> in this snippet:
>
> if ( $chosen =~ /\A\d+\z/ && $chosen >= 1 && $chosen <= @h ) {
> print "Taking some action on $h[$chosen - 1]\n";
> last;
> }
> [...]
>
> Is the second formulation (`/^\d+$/' - the one I used) likely to miss under
> certain conditions?
It's all in perldoc perlre.
Phil
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