info(Functor/Arity, List) info(Functor//Arity, List)
Documentation directive for predicates and grammar rule non-terminals.
info(+predicate_indicator, +info_list) info(+non_terminal_indicator, +info_list)
:- info(empty/1, [
comment is 'True if the argument is an empty list.',
argnames is ['List']]).
:- info(sentence//0, [
comment is 'Rewrites a sentence into a noun phrase and a verb phrase.']).