I'd be a bit worried that the second version may not perform the shifts in left to right order. There are no guarantees about the order that elements in a list are evaluated. Better would be:

sub extract {
    return join('-', (split(/:/, $_[0]))[1,2], $_[1]);
}

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In reply to Re^2: split slice? by GrandFather
in thread split slice? by convenientstore

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