Feature request: improve Polytonic Greek support

[thlinard]

Hi, In the current version, EB Garamond

1. has support for Small Caps άέήίΰαβγδεζηθικλμνξοπρςστυφχψωϊϋόύώ but not for ἀἁἂἃἄἅἆἇἐἑἒἓἔἕἠἡἢἣἤἥἦἧἰἱἲἳἴἵἶἷὀὁὂὃὄὅὐὑὒὓὔὕὖὗὠὡὢὣὤὥὦὧὰὲὴὶὸὺὼᾀᾁᾂᾃᾄᾅᾆᾇᾐᾑᾒᾓᾔᾕᾖᾗᾠᾡᾢᾣᾤᾥᾦᾧᾰᾱᾲᾳᾴᾶᾷῂῃῄῆῇῐῑῒῖῗῠῡῢῤῥῦῧῲῳῴῶῷϏ

2. doesn't provide support for alternate glyphs with adscript iota — missing complete GF Greek Plus support (+ alternate small caps with adscript iota);

3. has support for superior Latin letters, but not for ΑΒΓΔΕΖΗΘΙΚΛΜΝΞΟΠΡΣΤΥΦΧΨΩαβγδεζηθικλμνξοπρςστυφχψω

You can take a look at GF Greek Expert https://github.com/googlefonts/tools/tree/master/encodings/GF%20Glyph%20Sets/Greek

Many thanks!

[octaviopardo]

Hi, that s a lot of work of development and is not currently in the map. Maybe later in 2018! Thanks for the request though

[georgd]

@thlinard As for small caps the missing support is due to this version still missing some features that are present in v0.016. If you have a look there, you'll find polytonic accented glyphs and iota adscriptum supported in small caps and that shall happen here too. Necessary for that is the reintegration of the original features (adapted to the new fonts) and the fixing of the mark anchors bug. However, I'm against putting any more precomposed small caps glyphs in the fonts, be it latin greek or cyrillic, that can easily be composed on the fly.

[thlinard]

Hi Georg,

Glad to know the features are present in your version of EB Garamond, but I tried to obtain iota variants with it, and I failed (I confess I never used a cv feature before: if I understood correctly, the cv81195 lookup in cv81 activates the alternate forms, but I probably don't have a software supporting a cv lookup at hand).

Furthermore, the composition on the fly gave disastrous results in all browsers I tested. I can easily believe in a mark anchors bug, but the use of precomposed glyphs seems more robust.

Sadly, InDesign doesn't like your features either. I didn't test in a LaTeX environment, I guess this is your favorite test environment?

Anyway, if the glyphs were available in the previous version, that's another argument to keep them or restore them in the new version.