On Sep 6, John W. Krahn said:

>>       map { $_, delete $myhash{$_} } grep /^1\D/, keys %myhash;
>
>Very good Gunnar!  But the regexp may not work in all cases.
>
>my %myNEWhash = map { $_, delete $myhash{$_} } grep /^1(?:\D|$)/, keys %myhash;

That regex can also be written as /^1(?!\d)/, which reads "start of
string, '1', NOT followed by a digit".

-- 
Jeff "japhy" Pinyan         %  How can we ever be the sold short or
RPI Acacia Brother #734     %  the cheated, we who for every service
http://japhy.perlmonk.org/  %  have long ago been overpaid?
http://www.perlmonks.org/   %    -- Meister Eckhart


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