[XeTeX] Assignment of codes (particularly \catcode) based on Unicode data

[Julian Bradfield]

On 2015-05-06, Apostolos Syropoulos <asyropoulos at yahoo.com> wrote:
> I checked a bit the file and I have noticed that 
> \L 1F10 1F18 1F10 % 
> while xgreek.sty defines 
> \global\lccode"1F10="1F10 \global\uccode"1F10="0395
>
> You see the uppercase of 'GREEK SMALL LETTER EPSILON WITH PSILI'
> is 'GREEK LETTER EPSILON' and not 'GREEK LETTER EPSILON WITH PSILI. 

Not in standard representations of Ancient Greek it isn't, and
polytonic greek is mostly used for that.

I thought you didn't even use the psili at all in modern greek?