Paul Hoffman / IMC wrote: > > At 12:23 AM -0500 5/29/02, Eric A. Hall wrote: > >You are the only one that is unclear on it. 0x80-0xFF must match > >exactly. > > Funny, that doesn't match what a DNS expert posted a little before > you did; maybe there is more unclarity than you think.
There is no conflict between the answers. I responded to the earlier query regarding "using the 8th bit" while Mark responded to the "alphabetic characters" part of the followup query. The only unclarity remains to be in the IDNA camp, where it took seven drafts to figure out there was a difference between domain names and hostnames, and where there is continued misunderstanding on the basic premises underlying the use of domain names in general. > Further, neither your rules nor Mark's rules take into account the > many encodings that don't reserve the octets used for ASCII. Think > UTF-16. Or ISO-2022-JP. Or numerous others. What's your point? The DNS rules are pretty simple. -- Eric A. Hall http://www.ehsco.com/ Internet Core Protocols http://www.oreilly.com/catalog/coreprot/
