Agreed on the niceness of the keyword syntax, I would very much like to have than in Prolog too. SWI-Prolog has record-like data structured called dicts (IIRC)

Agreed on the niceness of the keyword syntax, I would very much like to have than in Prolog too. SWI-Prolog has record-like data structured called dicts (IIRC) but you can't use them directly as clause heads the way the article does.