RDF.IRI.absolute

You're seeing just the function absolute, go back to RDF.IRI module for more information.

Specs

absolute(coercible(), coercible()) :: t() | nil

Resolves a relative IRI against a base IRI.

as specified in section 5.1 Establishing a Base URI of RFC3986. Only the basic algorithm in section 5.2 of RFC3986 is used; neither Syntax-Based Normalization nor Scheme-Based Normalization are performed.

Characters additionally allowed in IRI references are treated in the same way that unreserved characters are treated in URI references, per section 6.5 of RFC3987

If the given base is not an absolute IRI nil is returned.