How to enable syntax color and indention for lwt in Emacs Tuareg mode?

I am using Tuareg mode for Emacs.

I am also using lwt. lwt has some syntax extension, but Tuareg cannot recognize them and it is ugly without indention and coloring.

I found this:

https://github.com/skydeck/lwt/blob/master/utils/tuareg-2.0.4.patch

It is a patch for tuareg-2.0.4 to enable lwt coloring.

However, I am using Tuareg-2.0.5 and I tried the patch directly, it failed.

I am not sure how to downgrade Tuareg, so I just downloaded the files of tuareg-2.0.4 and copy them to the elpa/tuareg-2.0.5 folder and then I did the patch again.

This was successfully patched as it said, but still my emacs cannot recognize lwt.

Can anyone tell me how?

Solution

IMHO, you don't have to replace your stock tuareg.el.

1. Place your patched tuareg.el to ~/.emacs.d/ directory

2. Add the following lines to your ~/.emacs config

(add-to-list 'load-path "~/.emacs.d/")
(load "tuareg")

3. (Optional) byte-compile your custom tuareg.el

M-x byte-compile-file

Stock tuareg mode

stock tuareg mode

Tuareg mode with lwt patch

tuareg mode with lwt patch