[Question] Encoding utf 16, how to change? [version 0.6.3]

[PoutineSyropErable]

I got it from the Arch Linux AUR. I'm using it in neovim.

I can't change it's encoding to UTF-8.

So, is this a problem on my end, or just that this has utf-16 default, or stuck with utf-16.

lspconfig.opencl_ls.setup({
	cmd = { "opencl-language-server" },
	filetypes = { "opencl" },
	root_dir = lspconfig.util.root_pattern(".git", ".asm-lsp.toml"),
	capabilities = vim.tbl_deep_extend("force", lsp_defaults.capabilities, {
		offsetEncoding = "utf-8",
		positionEncodings = "utf-8",
	}),
	init_options = {
		offsetEncoding = "utf-8", -- Some servers need this too
	},
})

vim.lsp: Position Encodings ~

• ⚠️ WARNING Found buffers attached to multiple clients with different position encodings.
  • Buffer 1: UTF-16 (client id(s): 1), UTF-8 (client id(s): 2)
  • ADVICE:
    • Use the positionEncodings client capability to ensure all clients use the same position encoding

[Galarius]

Hi @PoutineSyropErable, I checked the code responsible for communicating with clients, and it seems there is no UTF-16 requirement on the server side. UTF-8 is actually announced in the header:

opencl-language-server/src/jsonrpc.cpp

Line 144 in 3edec13

message.append(std::string("Content-Type: application/vscode-jsonrpc;charset=utf-8") + LE);

Although application/vscode-jsonrpc might not be the right content type (it's better to use more generic application/json), but I don't think this is causing the issue.

Regarding the warning message you encountered:

WARNING Found buffers attached to multiple clients with different position encodings.
Buffer 1: UTF-16 (client id(s): 1), UTF-8 (client id(s): 2)

Could it be that the client with ID 1 is not the one communicating with opencl-language-server but another client interacting with a different extension you have installed?

Have you tried applying any of the suggestions from the following thread: neovim/nvim-lspconfig#2184?