From: Philippe Verdy > Are these permanently assigned non-characters > encodable in any UTF or in CESU-8?
I would say they are. While they are not available for transmission of data, they are perfectly legal tor internal use. Indeed, such internal use is the raison d'etre of the block of non characters at FDD0..FDEF An implementation may wish to either allow or disallow the transformation of non-characters depending upon how it uses those codepoints.
