There is now a module in CPAN, Unicode::Casing, which includes as part of its tests, a full implementation of Turkish upper/lower casing. Unicode screwed up in its rules for this, and as a result Turkish (and Azeri) require locale-dependent rules, which Perl's core is not about to furnish. But the CPAN module allows one to adopt the correct rules. .-- Karl Williamson --- via perlbug: queue: perl5 status: rejected https://rt.perl.org:443/rt3/Ticket/Display.html?id=36953