On Thu, 2009-03-26 at 16:25 -0700, Martin Atkins wrote: > Can you reference the specific section of the spec you're referring to?
http://xmpp.org/rfcs/rfc3920.html#rfc.section.3.3 ...states that: A node identifier MUST be formatted such that the Nodeprep profile of [STRINGPREP] can be applied without failing. Before comparing two node identifiers, a server MUST (and a client SHOULD) first apply the Nodeprep profile to each identifier. http://xmpp.org/rfcs/rfc3920.html#nodeprep ..defines the Nodeprep Stringprep type, which includes Table b.2 in its mapping table. Table B.2 defines case folding for Unicode in the KC normalization. Domain names apply Nameprep, which also specifies Table B.2 for mappings, and are hence case-folded. Note that resources identifiers (which use Resourceprep) do _not_ apply Table B.2, and are thus case sensitive. - Alex
