Exegesis 2: Damian Conway On Perl6

sumengen writes: "Damian's writing a series of articles parallel to Larry's Apocalypses. These 'Exegesis' articles will show full perl6 programs, with commentary exlaining the new features. The first Exegesis (numbered 2, to keep in sync with Larry) shows a perl6 version of a binary tree program from the Perl Cookbook. Get excited to see things like:
my int ($pre, $in, $post) are constant = (0..2);"