is use utf8 necessary for extended variable names?

Yes, if utf8 names are used in perl source, you must use utf8;. I gave an example of a utf8 named sub in [5.8.0 Note] A Sub Named Sigma. That code failed without the pragmatic. I wish I could answer the rest of your questions as easily.

After Compline,
Zaxo

In reply to Re: Unicode, regex's, encodings, and all that (Perl 5.6 and 5.8) by Zaxo
in thread Unicode, regex's, encodings, and all that (Perl 5.6 and 5.8) by John M. Dlugosz

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