On Mon, Sep 23, 2024 at 05:02:13PM +0300, Thanos Apollo wrote:
> Max Nikulin <manikulin@gmail.com> writes:
> 
> [...]
> >
> > I am sorry for my ignorance, I may confuse something since I have never 
> > tried to type Greek using "gr" keyboard layout. Writing on possible 
> > conflicts I have in mind mostly M-something keybindings. I am looking 
> > into /usr/share/X11/xkb/symbols/gr polytonic symbols. AltGr+s in Greek 
> > layout (<AC02> levels 3 and 4) are used to type "Ϛ ϛ STIGMATA". On the 
> > other hand the "us" layout does not have level 3 and 4 symbols for 
> > <AC02> "s" qwerty key. 
> 
> Stigmata refers to bodily marks, it's not a letter.  =Stigma= is a
> ligature letter (meaning a combination of 2 letters, similar to "æ",
> but was used _only_ in minuscule manuscripts to save space by combining
> sigma (σ) + tau (τ).  Stigma is not part of the Greek alphabet.
> 
> All letters of the Greek alphabet are currently supported both in Emacs
> and in the GNU system.  Only the polytonic system is lacking (᾿ ` ῾ ῀ ͺ).

For the X11 keymaps, this [1] friendly person seems to have made
something. Perhaps you can build on it.

Cheers
[1] https://frame-poythress.org/keyboard-entry-of-polytonic-greek-and-biblical-hebrew-in-gnulinux-2014/
-- 
tomás