Eric Brunner-Williams in Portland Maine wrote:
> > maximum label length of 63 UCS character codes > > q: are you confusing octets and characters? No. The characters/codes are the canonical representation of the IDN, not the characters which are encoded and encapsulated in a data stream. The encoded values will have their own length restrictions when they are encapsulated. EG, ACE will provide a maximum of 59 octets when the four-octet prefix is subtracted from the maximum encapsulation length of 63 octets, but this is a secondary restriction apart from the canonical representation restrictions. > > only those UCS characters from the "safe-set" > > > > [version of] http://www.unicode.org/Public/UNIDATA/Scripts.txt > > q: is there mechanism for extension? is it in the ietf, or in the utc? Undefined in the rules. Got any ideas here? > > minimum label length of 2 UCS characters > > q: is two really better than one? Not a question I can answer, alas. > > U+002E (FULL STOP) is ONLY valid for use as a separator when > > the IHI is written out > > i don't know what this means. It means that "." is legal as a label separator, but not as label data. -- Eric A. Hall http://www.ehsco.com/ Internet Core Protocols http://www.oreilly.com/catalog/coreprot/
