How to configure NeoVim Treesitter in VimScript? - neovim

Question

I'm trying to configure treesitter syntax highlighting for my neovim config but the docs only show examples with Lua and i am using Vimscript. If you're using VimScript they redirect you to an example of calling a Lua function within VimScript but I don't understand how it works.
From their docs:
Following examples assume that you are configuring neovim with lua. If you are using vimscript, see :help lua-heredoc. All modules are disabled by default and need to be activated explicitly in your init.lua, e.g., via
lua-heredoc:
Executes Lua script {script} from within Vimscript. {endmarker} must NOT
be preceded by whitespace. You can omit [endmarker] after the "<<" and use
a dot "." after {script} (similar to |:append|, |:insert|).
Example: >
function! CurrentLineInfo()
lua << EOF
local linenr = vim.api.nvim_win_get_cursor(0)[1]
local curline = vim.api.nvim_buf_get_lines(
0, linenr - 1, linenr, false)[1]
print(string.format("Current line [%d] has %d bytes",
linenr, #curline))
EOF
endfunction
Note that the `local` variables will disappear when the block finishes.
But not globals.
I'd like to make this Lua code work in VimScript:
require("nvim-treesitter.configs").setup({
ensure_installed = { "javascript", "typescript", "lua", "vim", "json", "html", "rust", "tsx" },
sync_install = false,
auto_install = true,
highlight = {
enable = true,
},
})

Answer 1

Just add the following to any .vim file which will be loaded:
lua << EOF
require("nvim-treesitter.configs").setup({
ensure_installed = { "javascript", "typescript", "lua", "vim", "json", "html", "rust", "tsx" },
sync_install = false,
auto_install = true,
highlight = {
enable = true,
},
})
EOF
and it'll be normally called as if you'd be in a lua file. You can imagine that as a wrapper vor neovim which says at lua << EOF: "Ok bro, after this line, there'll be lua code and not vimscript stuff. Got it?" and if it reaches the bottom EOF: "Alright, the input for the lua command ends here. We can keep going after this line with vimscript!"
Other example
Take a look into that as an example:
lua << EOF
print("Hello from lua")
EOF
If you open up neovim in a new file now then you can see a Hello from lua in your messages (:msg).
(Opiniated) Recommondation
I highly recommend to use an extra lua file where you write your lua-code to avoid those "wrappers" (lua << EOF and EOF) in your config file which makes it more readable in my opinion.