in reply to Ansi Perl
Perl5 is Perl5 and developed by only 1 community, Perl.
Perl only have nuances when you talk about Perl 5.6+ series and Perl 5.8+ series, and when we talk about OS. Differences from OS we also have with ANSI C, but Perl also have a good guide, perlport, to make portable codes.
Perl doesn't have an "ANSI Perl" and won't have one because the aspects are very different from C.
Graciliano M. P.
"Creativity is the expression of liberty".