sax :: XMLReader :: entity_resolver
Return null if none has been registered.
	# Return the current entity resolver.
	#
	# Return `null` if none has been registered.
	fun entity_resolver: nullable EntityResolver is abstract
					lib/sax/xml_reader.nit:193,2--196,57
				
	redef fun entity_resolver do return model.entity_resolver
					lib/saxophonit/saxophonit.nit:71,2--58
				
	redef var entity_resolver = null is writable
					lib/sax/helpers/xml_filter_impl.nit:49,2--45