#!/usr/bin/perl use Lingua::JA::Romaji qw(&romajitokana &kanatoromaji); my $out; my $back; while (){ chomp(); if (/[A-Z]/){ $out = &romajitokana($_,"kata"); } else { $out = &romajitokana($_); } $back = &kanatoromaji($out); print "$out\n"; print "$back\n"; }