Do you also agree to release this highlighting file under MIT license? Same for the test case you attached? Also, can we use this test case for unit testing?

In D5463#102409, @dhaumann wrote:

Do you also agree to release this highlighting file under MIT license? Same for the test case you attached? Also, can we use this test case for unit testing?

It is okay. I can release the syntax file under LGPL, MIT, BSD ( https://community.kde.org/Policies/Licensing_Policy )

The test file is copied from pugjs.org , I am not the author. It is MIT licensed https://github.com/pugjs/pug-www/blob/39257987117795a4c2d133618649bb89f1cc81e4/package.json

I found this part might be a bug in this syntax highlight:

mimetype="text/plain"

It will highlight all plain text file to pug syntax. Should I just change mimetype to empty? Not sure how to write it for files that don't have registered mimetype.

yep, keep the mimetype field empty in that case

Could someone approve this patch? So I can commit it.