1ML mode for Emacs

This is the beginnings of an Emacs mode for 1ML.

To take this into use, you could e.g. specify

(use-package 1ml-mode
  :load-path "path-to-1ml-mode-src-directory"
  :mode ("\\.1mls?\\'" . 1ml-mode)
  :init
  (add-hook
   '1ml-mode-hook (function (lambda () (setq-local flycheck-checker '1ml)))))

using the wonderful use-package.

For the Flycheck support you will also need to have the 1ml command in PATH.