A language Server for the DOT language/Graphviz.

• Node.js >=18
• npm

npm i -g dot-language-server

If you want to request or implement new features, head over to dot-language-support.

{
  "languageserver": {
    "dot": {
      "command": "dot-language-server",
      "args": ["--stdio"],
      "filetypes": ["dot"]
    }
	}
}

if executable('dot-language-server')
  augroup lsp
    autocmd!
    autocmd User lsp_setup call lsp#register_server({
          \ 'name': 'dot',
          \ 'cmd': {server_info->['dot-language-server', '--stdio']},
          \ 'whitelist': ['dot'],
          \ })
  augroup END
endif

vim.api.nvim_create_autocmd({ "BufEnter" }, {
  pattern = { "*.dot" },
  callback = function()
    vim.lsp.start({
      name = "dot",
      cmd = { "dot-language-server", "--stdio" }
    })
  end,
})

TODO: There's an Extension for that.

1. Install LSP support via Install Package -> LSP
2. Go to Preferences: LSP Settings
3. Add this to clients:

{
	"clients": {
		"dot-language-server": {
			"command": ["dot-language-server", "--stdio"],
			"enabled": true,
			"languageId": "dot",
			"scopes": ["source.dot"],
			"syntaxes": ["Packages/Graphviz/DOT.sublime-syntax"]
		}
	}
}

Note for Windows Users: You have to append .cmd to the first entry in the command array (or, if possible, enable shell execution).

For Emacs users, you need to use lsp-mode which supports the DOT Language Server out of the box.

...and you're done!