http://cpansearch.perl.org/src/GBARR/Scalar-List-Utils-1.21/lib/Scalar/Util/PP.pm
ʂ̃TCgɃWv悤ƂĂ܂BXΏL̃NNbNĂ
UPLIFTōLȂő̌܂傤IKȉ{Ct܂I