Set Neovim and Using Meta key in VSCode

#vscode #neovim #vim #metakey

Set Neovim mode in VSCode

Install VSCode Extension: VSCode Neovim

Mapping meta key for VSCode and Neovim

Unification of meta key mapping between VSCode and Neovim
Send meta key mapping from VSCode to Neovim
Example of meta key for moving text
- VSCode Meta Key(<M-h/j/k/l>) --> Neovim Meta Key(<M-h/j/k/l>)

VSCode: keybinding.json(Shift-Cmd-P)

{
    "command": "vscode-neovim.send",
    // the key sequence to activate the binding
    "key": "M+k",
    // don't activate during insert mode
    "when": "editorTextFocus && neovim.mode != insert",
    // the input to send to neovim
    "args": "<M-k>"
},
{
    "command": "vscode-neovim.send",
    // the key sequence to activate the binding
    "key": "M+j",
    // don't activate during insert mode
    "when": "editorTextFocus && neovim.mode != insert",
    // the input to send to neovim
    "args": "<M-j>"
},
..

init.vim

" Normal Mode
nnoremap <M-K> <CMD>m .-2<CR>
nnoremap <M-J> <CMD>m .+1<CR>
nnoremap <M-H> <<
nnoremap <M-L> >>  
" Visual Mode
vnoremap <M-K> :m '<-2<CR>gv
vnoremap <M-J> :m '>+1<CR>gv
vnoremap <M-H> <gv
vnoremap <M-L> >gv

Terminal emulator for meta key

To send the meta key, you need to set the meta key in the terminal emulator.
- Mac: Terminal --> Preference --> Profile --> Key Board --> Enable "Use Option as Meta key"
- Emulator using xterm.js. ttyd(macOptionIsMeta=true)/hyper(altIsMeta: true) Find and set the corresponding Option