feature request: rumdl markdown formatter support

[GianniBYoung]

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Describe the feature

I would like to see markdown formatting natively facilitated through rumdl

https://github.com/rvben/rumdl

Provide background

I use rumdl form my linter via nvim-lint and would like to also use it as my formatter without having to set up any custom formatters.

https://github.com/mfussenegger/nvim-lint?tab=readme-ov-file#available-linters

What is the significance of this feature?

nice to have

Additional details

No response

[antonmry]

This works for me in the meantime:

-- ~/.config/nvim/ftplugin/markdown.lua

------------------------------------------------------------
-- Formatter (conform.nvim)
------------------------------------------------------------
local conform = require("conform")

conform.formatters.rumdl_fmt = {
	command = "rumdl",
	args = { "fmt", "-", "--quiet"},
	stdin = true,
}

conform.formatters_by_ft.markdown = { "rumdl_fmt" }

------------------------------------------------------------
-- Linter (nvim-lint)
------------------------------------------------------------
require("lint").linters_by_ft.markdown = { "rumdl" }

[Zevan770]

Could we just close this since rumdl has its own lsp implementation? rvben/rumdl@5a5492d

[mawkler]

The LSP seems to also do diagnostics which I kinda dislike because that's the job of the formatter: just format the code for me, don't also complain about the formatting with diagnostics warnings. I know you could turn off diagnostics for a specific language server, but I think there's a motivation here for configuring the rumdl formatter in conform.nvim for people like me that want just the formatter, and not an entire language server running.