Feature request: activate otter in LaTeX math blocks

[kamalsacranie]

Was wondering if it would be possible to activate otter when you are either in:

$$
...
$$

or

This is my equation:

\begin{...}
...
\begin{...}

[jmbuhr]

Not yet, but a couple of days ago the markdown treesitter grammar got support for latex chunks (https://github.com/MDeiml/tree-sitter-markdown/commit/7e7aa9a25ca9729db9fe22912f8f47bdb403a979). This will make it straightforward to write a query to get the latex content. But in order to use that I will have to make some internal changes in https://github.com/jmbuhr/otter.nvim/blob/8b46caf113918c26a9247031d6482709078ec907/lua/otter/keeper.lua#L20 because right now it only supports one query per buffer and that captures both the language and the content (e.g. a code chunk in markdown).

That being said, if you are just after completion for math symbols I find that it is convenient to enable them for the whole document anyways, so there is not need for a separate treatment of math blocks. Here are some examples: https://www.youtube.com/watch?v=Lc_kMYVIS5I

[jmbuhr]

This should be solved with the latest update that can use injections to find code chunks.

[Myzel394]

@jmbuhr do you have a sample configuration? I can't get this to work :/

[anuramat]

from what I can see markdown_inline parser needs to be called for this, since the injections in the markdown parser only include code blocks

[jmbuhr]

Indeed, I just realized that this doesn't currently work because the parser for the document is markdown, which itself injects the markdown-inline parser into blocks, which then can inject latex. However, otter currently doesn't support multiple levels of injections. This is a good use case to show why we might want this.

[Jakobuo]

Does this also prevent fenced latex code blocks from working?

[jmbuhr]

No, fenced code blocks should be only one level of injections, so it should work.