Shouldn't
my ($sub) = $AUTOLOAD =~ /([^:])$/;
be
my ($sub) = $AUTOLOAD =~ /([^:]+)$/;
? Or do you only need the last non-':' character of the subname?
Examine what is said, not who speaks.
"Efficiency is intelligent laziness." -David Dunham
"When I'm working on a problem, I never think about beauty. I think only how to solve the problem. But when I have finished, if the solution is not beautiful, I know it is wrong." -Richard Buckminster Fuller
If I understand your problem, I can solve it! Of course, the same can be said for you.