languageserver VS lsp_signature.nvim

Symbol outline by LSP Client: It can connect to any LSP "server" (runs locally) which implements LSP protocol (https://microsoft.github.io/language-server-protocol/), and supports "stdin" communication. A number of LSP server configuration is provided by default (including R), but user can extend, and override this configuration. As long as the LSP servers are properly installed (kate will start them) and the Kate LSP client configuration is set up properly should work. LSP also provides other IDE-like features (like code completion, jump to symbol definition, diagnostic/linter messages) etc. I found an LSP server for R (https://github.com/REditorSupport/languageserver), you may want to give it a shot.

You'd need: - hrsh7th/nvim-cmp with set up LSP source (hrsh7th/cmp-nvim-lsp). - neovim/nvim-lspconfig. - R language server installed. This is a regular R package, can be installed from CRAN.

Besides a common modern Neovim "IDE setup", some other useful R-specific tools: - languageserver R package for LSP integration. - styler R package for code formatting. Somewhat slow and lacks some features, but seems to be the best current solution.

First of all, make sure that you actually use r_language_server. For that, at least install languageserver R package (run R from command line and execute install.packages("languageserver")) and set up r_language_server with nvim-lspconfig. I think after that you should be able to see some diagnostic information.

The truth is that most editors will use R language server underneath ( https://github.com/REditorSupport/languageserver ) so it's more what layout you prefer than what functionalities an editor has to offer.

Other plugins/utilities can fill in some of the other gaps. In the screenshot below, I'm using NvimTree to browse files, and I'm also currently using Neovim's native LSP client (in Neovim 0.5.0) with r_language_server installed (configured with the Neovim team's plugin nvim-lspconfig).

I have tried to find a solution to this using both noice.nvim and cmp. I ended up using https://github.com/ray-x/lsp_signature.nvim which has this behavior out of the box. Also provides some additional features like showing the signature inline.

Tried poking around, but could make anything work. I even installed ray-x/lsp_signature.nvim by mistake, and kept it because it's pretty good.

nvim-lspconfig, nvim-treesitter, and lsp_signature.nvim using my distribution's package manager (not sure if I need the last one, though). Treesitter works with my minimal config and highlights all code as expected, and for LSP I have the :Lsp... commands so the plugin gets loaded - but I can't find a way to configure it.

the issue on plugin maker's github page and my (essential) config so far )

Check out this plugin: https://github.com/ray-x/lsp_signature.nvim

For the second issue you need a separate plugin, I think (I don't use cmp). Something like lsp_signature.nvim

More globally, there is no a particular plugin that'd implement it in general. It is sad, but you can get some easier signature help by https://github.com/ray-x/lsp_signature.nvim one (thanks for u/eliizaak for this solution).

Since this is a Lunarvim related question I'd suggest you ask in the Lunarvim discord, because the question might be answered there better. As far as I know you need a plugin like https://github.com/ray-x/lsp_signature.nvim to get this working.