parses the textual representation of an absolute URI.
This method is used to parse URIs (with no fragment part), not URI
references (with an optional fragment part).
If an object is returned, the behaviour of its
XUriReference methods must
reflect the fact that the object represents an absolute URI reference
with the given scheme and scheme-specific part, and without a fragment
part.
Parameter scheme
the textual representation of the scheme part (without the delimiting
“:”).
Parameter uriReference
the textual representation of the scheme-specific part.
Returns
an object that supports
XUriReference (and possibly also
additional, scheme-specific interfaces), if the given input can be parsed
into an absolute URI; otherwise, NULL is returned.
