bug: inline LaTeX formulae are not highlighted

[Silzinc]

Did you check existing issues?

• [x] I have read all the tree-sitter docs if it relates to using the parser
• [x] I have searched the existing issues

Tree-Sitter CLI Version, if relevant (output of tree-sitter --version)

tree-sitter 0.20.8

Describe the bug

Hello!

Very simply, even after disabling the plugins I use around markdown and reinstalling mardown and markdown_inline parsers on treesitter neovim, it just won't highlight mathematics formulae (example below).

I learnt that some other people had a similar issue that was solved long ago, so I guess it is a problem in my config, but after disabling and re-enabling every bit that seemed relevant, I found no solution. Thank you in advance for helping me out!

Steps To Reproduce/Bad Parse Tree

1. Open a Markdown file
2. Write some text with a formula (example below)

Expected Behavior/Parse Tree

The formulae are highlighted and do not remain blank.

Repro

Here is the Gaussian integral:

$$
\int_{-\infty}^{\infty} e^{-x^2} \mathrm d x = \sqrt{\pi}
$$

[tbung]

What do you get if you move your cursor over a part of the equation and run :Inspect? Also, do you have the latex parser installed as well? Whats the output of :checkhealth nvim-treesitter?

Highlighting works for me, so I am pretty sure this issue is completely unrelated to the markdown parser.

[Silzinc]

Oh I did not think the latex parser would be required for this. I had uninstalled it because I did not use it in regular tex files. This solved my problem, thank you!

[tbung]

Yes, in all instances where you have some other language within a language there are queries basically saying "parse this part as this other language" (called injections) and treesitter needs the other parser to do that, so this also applies to all languages you want to highlight in markdown code blocks.

Glad I could help!