True when identifier has the shape of an OPC 10000-12 Annex D ServerCapabilityIdentifier: a short token of letters, digits, _ or -, with no whitespace and none of the separators an mDNS TXT record uses (, and =).
identifier
_
-
,
=
True when
identifierhas the shape of an OPC 10000-12 Annex D ServerCapabilityIdentifier: a short token of letters, digits,_or-, with no whitespace and none of the separators an mDNS TXT record uses (,and=).