HTML and CSS language server support

[aral]

Adding HTML and CSS language server support should be quite easy.

In languages.toml:

HTML

language-server = { command = "html-languageserver", args = ["--stdio"], language-id="html"}

CSS

language-server = { command = "css-languageserver", args = ["--stdio"], language-id="html"}

And the language server installation commands are:

HTML

npm install --global vscode-html-languageserver-bin

CSS

npm install --global vscode-css-languageserver-bin

Happy to prepare a pull request for the languages.toml file if you’d like.

[sudormrfbin]

A PR will be very much welcome :)

[David-Else]

https://www.npmjs.com/package/vscode-langservers-extracted

These are the current versions extracted from VS Code. They are the defaults for Neovim and maintained by the excellent gentleman https://github.com/hrsh7th:

https://github.com/neovim/nvim-lspconfig/blob/master/doc/server_configurations.md#cssls
https://github.com/neovim/nvim-lspconfig/blob/master/doc/server_configurations.md#html

JSON is included too :)

vscode-css-languageserver-bin is very old.

[David-Else]

This has been closed by #2025 and #2018 (and JSON has been added too)