dhall-mode

Emacs Major mode for working with Dhall configuration language.

Installation

Make sure that you install dhall-format and it's PATH is available to emacs via exec-path.
Install this extension from MELPA:

(use-package dhall-mode
  :ensure t
  :mode "\\.dhall\\'")

Syntax highlighting (Using font lock)
Multiline support for String
Basic indendation, commenting
Automatic formatting on save (Configurable via variable). Uses dhall-format for it.
Error highlighting.

Todo:

Distributed under GNU GPL, version 3.