A simple syntax highlighting scheme for the nano editor to work with the Mercury programming language.
The file should be copied to wherever makes sense for your OS so that nano can find it. It is based upon the Prolog mode, it isn't perfect but it works well enough for daily use.
For me on my mac-mini that's:
~/.nano/mercury.nanorc
This file makes use of a utility I write called pberr, you can find that here:
https://github.com/emacstheviking/mercury-pberr
You will of course nned to buld it and install it as directed.