# Like `ns.process_name`, but with error handling.
	private fun process_name(qname: String, parts: Array[String],
			is_attribute: Bool) do
		if qname.has(qname_re) then
			if ns.process_name(qname, parts, is_attribute) == null then
				fire_error("The namespace IRI of `{qname}` was not found in " +
						"this scope. Passing the original name as the local " +
						"name.", null)
				parts = ["", qname, qname]
			end
		else
			fire_error("The name `{qname}` contains more than one colon. " +
					"Passing the original name as the local name.", null)
			parts = ["", qname, qname]
		end
	end