incompatibility with md-headers, a plugin to navigate through the headings of .md .rmd.

[SoaresAlisson]

Not an issue, but an incompatibility between packages. Must I maybe put it on "Discussions"?

I installed the https://github.com/AntonVanAssche/md-headers.nvim/wiki/Installation and loved the idea to easily navigate through the headers. Maybe in the future can I fork it and try to implement a chunk navigation, like in RStudio. But for now, my knowledges in Lua is very limited.
Well, after installing the plugin (I'm using Lazyvim) and enabling more formats ft = { "markdown", "rmd", "Rmd", "qmd" }, everything works fine until I call any function of the package, like MDHeaders or MDHeadersTelescope. After that, I cannot send code to terminal "not inside R or Python Chunk" and when I try to comment, it uses HTML comment <!-- everywhere, instead of #. Has anyone any clue on how to solve this problem? Or knows anybody an alternative, similar plugin? For me, the best solution would be to easily navigate through the names of the chunks.

Thanks!

[PMassicotte]

Maybe in the future can I fork it and try to implement a chunk navigation, like in RStudio.

This is there already

<LocalLeader>gn
<LocalLeader>gN

Does calling MDHeader changes the filetype?

[jalvesaq]

I installed "md-headers.nvim" and can replicate the bug. Running :MDHeaders calls:

  local parser = vim.treesitter.get_parser(bufnr, "markdown", {})

which is the same command called by our lua/r/utils.lua. It, then, runs this query:

local md_query = vim.treesitter.query.parse(
  "markdown",
  [[
(atx_heading) @md_heading
]]
)

[PMassicotte]

Interesting. Not sure how this could potentially affect R.nvim. I will explore a bit.

[jalvesaq]

@SoaresAlisson, could try the "new_get_lang" brach, please?

[SoaresAlisson]

Wow!
I was expecting only some general comments on this issue, not a change proposal in the code of R.nvim, and not so fast. You guys are amazing!
Well, so I must do a git clone in ~projects, choose the branch and run nvim/lazyvim link, right?

[jalvesaq]

Unfortunately, I realized that the bug was not fixed...

[PMassicotte]

I will do my best to explore this tomorrow.

[PMassicotte]

After calling : MDHeaders it does not work anymore like you said. Then, if you type :set filetype=quarto it works again. Looks like that the plugin is changing something.

[PMassicotte]

https://github.com/AntonVanAssche/md-headers.nvim/blob/5d062d58a05cbe6e3467a40415fc14adb5eed188/lua/md-headers/config.lua#L3-L11

[PMassicotte]

I think I have fixed the issue. @SoaresAlisson, @jalvesaq mind testing this branch?

https://github.com/R-nvim/R.nvim/tree/fix-wrong-filetype-md-header

[jalvesaq]

It didn't work with this Quarto document:

First paragraph.

```{r}
x <- 1
y <- 2
```

Second paragraph.

```{r}
z <- 3
```

After running :MDHeaders, if I put the cursor over the line x <- 1 and send the line, the cursor jumps to z <- 3, not to y <- 2.

[PMassicotte]

I found the issue. It seems that the buffer becomes 1 based after calling :MDHeader.

Try with this document:

---
---

# H1

```{r}
library(tidyverse)
```

## H2

First paragraph.

```{r}
x <- 1
y <- 2
```

Second paragraph.

```{r}
z <- 3
```

With this branch, call sendline on x <- 1. It will print 14. Call :MDHeader, replace the cursor on that line, it will now print 15.

[PMassicotte]

I think this comes to this

R.nvim/lua/r/send.lua

Lines 121 to 132 in 493de62

	if node and node:type() == "program" then node = node:child(0) end
	while node do
	local parent = node:parent()
	if
	parent
	and (parent:type() == "program" or parent:type() == "braced_expression")
	then
	break
	end
	node = parent
	end

With the node program not always accounting depending on ts version or something. I remember opening an issue on that.

neovim/neovim#31447

[PMassicotte]

    if node and node:type() == "program" then node = node:child(0) end

    vim.print("node: ", node:range())

Node range change after calling :MDHeader.

[PMassicotte]

 if node then vim.schedule(function() end) end

vim.print("node: ", node:type())

Before, the type is program then change to fenced_content.

[jalvesaq]

Is it a bug in md-headers? Or in Neovim?

[PMassicotte]

Not sure, still scratching my head to understand what is going on.

[PMassicotte]

The change occurs here: https://github.com/AntonVanAssche/md-headers.nvim/blob/5d062d58a05cbe6e3467a40415fc14adb5eed188/lua/md-headers/headings.lua#L53-L82

[PMassicotte]

If we comment out the html parsing it works

M.get_headings = function(bufnr)
    local md_headings = _query_md(bufnr) or {}
    -- local html_headings = _query_html(bufnr) or {}

    local headings = {}
    for _, h in ipairs(md_headings) do
        table.insert(headings, h)
    end

    -- for _, h in ipairs(html_headings) do
    --     table.insert(headings, h)
    -- end
    headings = _sort_headings(headings)

    return headings
end

[jalvesaq]

So, at least for some tree-sitter operations, md-headers turns the buffer file type into HTML...

[PMassicotte]

yes, because doing :set filetype=quarto after :MDHeaders makes it work again.