I’ve been seeing the occurrences of perl programmers not understanding perl’s very simple (and sometimes buggy but easily fixable) handling of Unicode strings. I confess I had the same misunderstanding until 6–7 years ago, and don’t want everyone to repeat the same mistake. Let’s forget what you know for 5 minutes, and take this simple course. 1. print($a, $b) and print($a . $b); Let’s forget, for