No highlighting in neovim about tree-sitter-usd HOT 6 CLOSED

Looking at your Neovim version again, 0.9.5, isn't that version out of date?

0.9.5 is this release - neovim/neovim@8744ee8. And the equivalent path in Neovim is {neovim_root}/runtime/lua/vim/filetype.lua. https://github.com/neovim/neovim/blob/8744ee8783a8597f9fce4a573ae05aca2f412120/runtime/lua/vim/filetype.lua doesn't have usd filetypes yet. But it does exist in master.

Once Neovim 0.10 is released you can upgrade to that. In the meantime there's the option to compile master / nightly from source. Or you can also add au BufNewFile,BufRead *.usda,*.usd setf usd to your configuration in the meantime and then remove it once you're on a later Neovim version.

Let me know if compiling Neovim from master / nightly solves it and, if so, I can update the README.md to specify Neovim 0.10+ as a requirement if you intend to use this grammar for that editor.

from tree-sitter-usd.

0.9.5 is this release - neovim/neovim@8744ee8. And the equivalent path in Neovim is {neovim_root}/runtime/lua/vim/filetype.lua. https://github.com/neovim/neovim/blob/8744ee8783a8597f9fce4a573ae05aca2f412120/runtime/lua/vim/filetype.lua doesn't have usd filetypes yet. But it does exist in master.

Good catch, that is indeed the issue. Neovim 0.10 will be released in 1 week. I can test once it's out. The workaround works for now: au BufNewFile,BufRead *.usda,*.usd setf usd. Thanks for the help. :)

from tree-sitter-usd.

When you move your cursor over a keyword and do :Inspect what's the output? And what's the output of :InspectTree? It's possible that the grammar is fine but your configuration doesn't have set syntax enabled or something.

This is what my :InspectTree looks like

If :InspectTree is empty, try calling :lua vim.treesitter.start(0, "usd") on the current buffer and try :InspectTree again.

from tree-sitter-usd.

Calling :lua vim.treesitter.start(0, "usd") seems to make things work:

:InspectTree fails regardless of whether it's called before or after the start() call:

:Inspect works after the start() call:

but not before :

set syntax returns : syntax=conf

from tree-sitter-usd.

If I remember right, the :InspectTree loads using your filetype attribute. And filetype is detected by the name of the file extension

e.g. main.usda, on open
set filetype? = usd
set syntax? = ``

If yours prints back

set filetype? = conf or something else or ""
set syntax? = conf

Then that would explain all that we've seen so far. e.g. highlighting works but only after calling lua vim.treesitter.start(0, "usd") but :InspectTree still fails because it's reading from your set filetype? which is incorrectly set. Filetype discovery is controlled by https://github.com/vim/vim/blob/ea999037a41292b3d3e00700a87a82fe5d2c12b2/runtime/filetype.vim#L3033-L3034. And it works for .usd and .usda extensions.

What's the name of the file that you're trying to load? Can you confirm that set filetype? = usd on start-up?

from tree-sitter-usd.

Indeed, as you suggested, there appears to be a problem with filetype: set filetype? = conf. If I set it to usd, highlighting works and :InspectTree works.

I now wonder why files with .usda and .usd extensions are not recognized as filetype = usd in my setup? I have nothing unusual happening with filetype in my config. In fact, the only lines in my config with filetype are:

filetype indent on  " load filetype-specific indent files
filetype plugin on  " enable filetype plugins
au BufEnter *.tpp :setlocal filetype=cpp

The link to filetype.vim that you referenced is from the vim repo, I am using neovim but the docs suggest that it should be processed anyway.

from tree-sitter-usd.