[Linux] Chrome and Firefox do not display number emoji correctly

[kgizdov]

I currently have no issues with this font except for this one. I'm guessing the number emoji are overridden somewhere, but I wonder why no other emojis are. Everything else looks fine.

• Font version: 1.2
• Screenshots:
  Chrome
  
  Firefox
  
• Operating system: Arch Linux x64
• Steps to reproduce:

1. Install font
2. Open Chrome or Firefox
3. visit a page that contains number emoji

[13rac1]

Thank you for the detailed bug report!

This is currently intentional. The glyphs were disabled in e1a34da for #40 [Linux] Inconsistently parsed fontconfig causes font selection problems (Help wanted!) If I revert the commit, then #35, #37, #39 and more will happen again.

[kgizdov]

Well, that's a good point, but #40 on my Arch looks like this and everything works fine.

❯ fc-match -s sans
Vera.ttf: "Bitstream Vera Sans" "Roman"
EmojiOneColor-SVGinOT.ttf: "EmojiOne Color" "Regular"
DejaVuSans.ttf: "DejaVu Sans" "Book"
DejaVuSans-Bold.ttf: "DejaVu Sans" "Bold"
DejaVuSans-Oblique.ttf: "DejaVu Sans" "Oblique"
DejaVuSans-BoldOblique.ttf: "DejaVu Sans" "Bold Oblique"
n019003l.pfb: "Nimbus Sans L" "Regular"
... etc

For #35, #37, #39, I'm really not sure why UTF-8 emoji glyphs would appear instead of numbers - those are separate symbols, I believe. Could this all be something else?

[13rac1]

The programs in those issues all implement their own fontconfig parsing, but as far as I understand, they don't follow the spec for prepend_first. You can see mpv's debug output here where it defaults to the incorrect default font: #37 (comment)

everything works fine.

Run Evolution, MPV or Steam with version 1.1 of the font and you can reproduce these issues.

I'm really not sure why UTF-8 emoji glyphs would appear instead of numbers - those are separate symbols, I believe.

These numpad emoji require font ligatures to work. Font ligatures only work if all glpyhs used to create the ligature are in the font. I need to have both the empty numpad emoji and a regular non-emoji number so they can be combined to create a numpad number.

Could this all be something else?

Yes, but this is so far the only solution in my tests on all three programs in two Linux distributions. I gladly accept a better solution though.

I've suggested a possible solution (or rather long term workaround for the MPV, Evolution, and Steam bugs) in #40 at: #40 (comment)

Let's move further discussion on this to #40. Thanks!