Hyper Key

[samyakbardiya]

• nvim --version: v0.4.4
• Operating system/version: Arch Linux v5.10.12
• Terminal name/version: st v0.8.4
• $TERM: st-256color

I want to map my binding using Hyper Key

recently I came across an option of setxbmap

setxkbmap -option 'ctrl:swapcaps_hyper'

what this command does is that it makes the Caps Lock as Ctrl, and Ctrl as Hyper.

so now I want to bind some things in the neovim to the new Hyper key, but sadly vim don't support Hyper key and so do neovim.

they only supports:

• shift as <S-...>
• control as <C-...>
• alt as <A-...>
• meta as <M-...>
• super as <D-...>

so I was hoping if neovim can add the support of Hyper key :)
after doing some research found that Emacs support it, so I was guessing then neovim can too.

[pta2002]

I guess this would depend if the hyper key is passed on to the terminal. Does emacs support it on non-GUI mode?

[samyakbardiya]

got your point, the Emacs in terminal does not support hyper key.

that's sad :(

[pta2002]

I guess the only way to implement this then would be to bypass the terminal and grab it from X/Wayland manually, but that'd be a whole lot of trouble. Maybe a way for GUI frontends to bind to it? Don't know if there's already a way to do that

[samyakbardiya]

is there any application like xev but for tty ?

[bfredl]

Adding yet another modifier flag to core like <H-x> wouldn't be difficult, but it is up to UI:s to actually detect the key from os/toolkit and assign it to this flag. I don't know of any terminal who support it unfortunately (personally I just use X11 terminals that support XIM/ibus/etc, then I can preprocess keyboard input as I like).

[pta2002]

Does neovim already handle that kind of terminal? If it does it probably wouldn't be too hard to support this

[bfredl]

well no, but if such a terminal exist it wouldn't be hard, just tell us what sequences it uses 😅

[zeertzjq]

Kitty recently introduced a new keyboard protocol that supports representing many more keys and key combinations. (https://sw.kovidgoyal.net/kitty/keyboard-protocol.html) I just opened issue #14400 for that.