rdf_is_literal/1

Availability::- use_module(library(semweb/rdf11)).

True if Term is an RDF literal term.

An RDF literal term is of the form `String@LanguageTag or Value^^Datatype`.

Success of this goal does not imply that the literal is well-formed or that it is present in the database (see rdf_literal/1 for that).

Availability::- use_module(library(semweb/rdf_db)).

True if Term is an RDF literal object. Currently only checks for groundness and the literal functor.