Re: Titlecase mappings for GREEK SYMBOLs

From: Mark Davis (mark@macchiato.com)
Date: Wed Feb 04 1998 - 10:36:23 EST

Michael Everson wrote:
>
> Ar 09:45 -0800 1998-02-03, scríobh John Cowan:
> >In UnicodeData 2.0.14, the following characters have an Uppercase
> >mapping but no Titlecase mapping:
> >
> > U+03D0 GREEK BETA SYMBOL
> > U+03D1 GREEK THETA SYMBOL
> > U+03D5 GREEK PHI SYMBOL
> > U+03D6 GREEK PI SYMBOL
> > U+03F0 GREEK KAPPA SYMBOL
> > U+03F1 GREEK RHO SYMBOL
> >
> >Taken literally, this means that when uppercasing, these characters are
> >mapped to the corresponding ordinary GREEK CAPITAL LETTERs, but
> >when titlecasing, they are left alone. Is this correct, or
> >just an oversight?

This looks like an error. Has a message been sent to errata@unicode.org?

>
> I always thought that these were SYMBOLS, not LETTERS, in which case they
> are autonomous and don't participate in casing operations.

They are really just presentation forms. As I recall, they were renamed
"SYMBOL" in the merger with 10646.

>
> --
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-- 
Mark Davis
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