homebrew-emmet-language-server: A JavaScript repository from sujayxaradhya

emmet-language-server

A language server for emmet.io

Why another language server?

While aca/emmet-ls works for what I need, there were a couple of things that annoyed me from time to time and while trying to fix one of those things (aca/emmet-ls#55) I've discovered that we can leverage microsoft/vscode-emmet-helper and make a simple language server that wraps that package to provide completions.

So I decided to do that and it worked!

The most important thing is that microsoft/vscode has an excellent integration with emmet and we can have that, in all editors that implement the Language Server Protocol.

Setup

Warning I've decided to rename the package to @olrtg/emmet-language-server for mason/lspconfig integration. Please remove the old @olrtg/emmet-ls package and migrate to this new one.

Using Homebrew:

 brew tap youngmoguler/emmet-language-server
 brew install emmet-ls

Using npm:

npm i -g @olrtg/emmet-language-server

Using mason.nvim:

:MasonInstall emmet-language-server

Neovim

Note Want deeper integration (eg. wrap with abbreviation)? Check out nvim-emmet.

With nvim-lspconfig:

Remember that if you don't need to support a new filetype or change the default settings of the language server you don't need to pass a table to the setup function (like this: lspconfig.emmet_language_server.setup()).

lspconfig.emmet_language_server.setup({
  filetypes = { "css", "eruby", "html", "javascript", "javascriptreact", "less", "sass", "scss", "svelte", "pug", "typescriptreact", "vue" },
  -- Read more about this options in the [vscode docs](https://code.visualstudio.com/docs/editor/emmet#_emmet-configuration).
  -- **Note:** only the options listed in the table are supported.
  init_options = {
    --- @type string[]
    excludeLanguages = {},
    --- @type table<string, any> [Emmet Docs](https://docs.emmet.io/customization/preferences/)
    preferences = {},
    --- @type boolean Defaults to `true`
    showAbbreviationSuggestions = true,
    --- @type "always" | "never" Defaults to `"always"`
    showExpandedAbbreviation = "always",
    --- @type boolean Defaults to `false`
    showSuggestionsAsSnippets = false,
    --- @type table<string, any> [Emmet Docs](https://docs.emmet.io/customization/syntax-profiles/)
    syntaxProfiles = {},
    --- @type table<string, string> [Emmet Docs](https://docs.emmet.io/customization/snippets/#variables)
    variables = {},
  },
})

Without nvim-lspconfig:

vim.api.nvim_create_autocmd({ "FileType" }, {
  pattern = "astro,css,eruby,html,htmldjango,javascriptreact,less,pug,sass,scss,svelte,typescriptreact,vue",
  callback = function()
    vim.lsp.start({
      cmd = { "emmet-language-server", "--stdio" },
      root_dir = vim.fs.dirname(vim.fs.find({ ".git" }, { upward = true })[1]),
      -- Read more about this options in the [vscode docs](https://code.visualstudio.com/docs/editor/emmet#_emmet-configuration).
      -- **Note:** only the options listed in the table are supported.
      init_options = {
        --- @type string[]
        excludeLanguages = {},
        --- @type table<string, any> [Emmet Docs](https://docs.emmet.io/customization/preferences/)
        preferences = {},
        --- @type boolean Defaults to `true`
        showAbbreviationSuggestions = true,
        --- @type "always" | "never" Defaults to `"always"`
        showExpandedAbbreviation = "always",
        --- @type boolean Defaults to `false`
        showSuggestionsAsSnippets = false,
        --- @type table<string, any> [Emmet Docs](https://docs.emmet.io/customization/syntax-profiles/)
        syntaxProfiles = {},
        --- @type table<string, string> [Emmet Docs](https://docs.emmet.io/customization/snippets/#variables)
        variables = {},
      },
    })
  end,
})

Helix Editor

Install normally with npm/pnpm, then add the following to languages.toml:

[[language]]
name = "html"
language-server = { command = "emmet-language-server", args = ["--stdio"] }

Credits