bug#36717: 25.3; greek.el: deprecated vowel+oxia combinations should be replaced with vowel+tonos counterparts

[Robert Alessi]

On Thu, Jul 18, 2019 at 04:54:45PM +0200, Robert Pluim wrote:
> >>>>> On Thu, 18 Jul 2019 11:03:10 +0200, Robert Alessi 
> >>>>> <alessi@robertalessi.net> said:
> 
>     Robert> As of 2016, the latest versions of Unicode (as of 2016) have now
>     Robert> formally deprecated and removed the vowel+oxia combinations from 
> the
>     Robert> Greek extended range, leaving only the vowel+tonos from the basic 
> Greek
>     Robert> and Coptic range.
> 
>     Robert> As a result of this deprecation, the sixteen characters found in
>     Robert> greek.el (Quail package for inputting Greek) that use extended
>     Robert> codepoints should be replaced with those that use basic 
> codepoints.  All
>     Robert> affected characters can be found here:
>     --> 
>     Robert> 
> https://wiki.digitalclassicist.org/Greek_Unicode_duplicated_vowels#Affected_characters
> 
> I took a look at greek.el, that shouldn't be difficult. What about
> GREEK OXIA vs GREEK TONOS as standalone characters? Should we replace
> the former with the latter?

Very well spotted.  Actually, the latter is the right one—that is:
Greek Tonos, U+0384—while the former, Greek Oxia (U+1FFD) belongs to
the group that was deprecated.  So it is the other way round: keep the
former, and make the latter go.

Thank you,

Robert