Issue with emojis in NeoVim

[igorlakic]

First I have to say that I already saw #875 and that I'm a huge fan of Kitty terminal emulator. Great job!

Info
I have zsh 5.8, kitty 0.17.2.
In NeoVim I configured: 'set noemoji'

More about issue
When I e.g. insert emoji for information ℹ️ , the whole line in nvim doesn't render properly. I've tested the same thing in Mate terminal and few others and it works as expected. Do I have to configure something in Kitty to work as expected?

Thanks in advance!

[kovidgoyal]

This will be because neovim does not support emoji variation selectors
(U+FE0F in this case) and so incorrectly thinks the width of that emoji
is 1 char instead of 2. Report the bug there.

[igorlakic]

Like I already described above, this can be easily fixed in Vim/NeoVim by inserting set noemoji in configuration file (which I did). I also tested this behavior in several terminal emulators and it's working there. So for example: Tilix, Xfce terminal, LXTerminal, Mate terminal, Alacritty - they all renders cursor positioning correctly.
So obviously, the problem is not in NeoVim/Vim - when you add set noemoji in Vim/NeoVim configuration file problem is solved on Neovim/Vim side.

Can you please reopen this issue again and take a look at this issue?

Thanks in advance!

[kovidgoyal]

On Tue, Mar 31, 2020 at 11:40:10AM -0700, Igor Lakić wrote: Like I already described above, this can be easily fixed in Vim/NeoVim by inserting `set noemoji` in configuration file (which I did). I also tested this behavior in several terminal emulators and it's working there. So for example: Tilix, Xfce terminal, LXTerminal, Mate terminal, Alacritty - they all renders cursor positioning correctly. So obviously, the problem is not in NeoVim/Vim - when you add `set noemoji` in Vim/NeoVim configuration file problem is solved on Neovim/Vim side.

That will be because none of those terminal emulator support unicode variation selectors. Read up on them. That symbol by default has a width of 1 char with U+fe0f it becomes 2 chars as per the unicode standard. kitty renders it in two cells, as required by the standard.

[igorlakic]

So there's no appropriate solution for this emoji issue?
Anyway, thanks for a fast reply @kovidgoyal and thanks for all the effort you put in development of Kitty.

[kovidgoyal]

On Wed, Apr 01, 2020 at 01:34:04PM -0700, Igor Lakić wrote: So there's no appropriate solution for this emoji issue?

The solution is for neovim to add support for unicode variation selectors.