On Mon, Mar 09, 2009 at 01:35:08PM -0400, Edward Lewis wrote: > For those of us not reading idnabis, what is an A-label and what is a > U-label? I have not seen a reference to their definition so I'm > assuming these are idnabis terms.
Oops, sorry, yes, I should have provided that. An A-label is the ASCII-compatible-encoding version of an IDNA-legal string. Basically, these are the labels you see in the DNS that start with "xn--". Note that traditional labels (all ASCII ones that people use, like "shinkuro" and "com") are _not_ A-labels. A U-label is the Unicode "version" of the label -- that is, the thing that we expect people to see and to type in. It must include at least one non-ASCII character (otherwise, it's just an ASCII label, and IDNA doesn't kick in). There are some other restrictions having to do with the legal form for U-labels, but they're beyond our scope for the purposes of this discussion. > The problem with saying "these are the technical rules and they > shouldn't be changed" is that this essentially closes off the global > public Internet from becoming global. Surely not, if we are defining an infrastructure by which that "globalness" may be expressed (i.e. IDNA). Or is there some other thing you think ought to be permitted that would be closed off by John's position? A -- Andrew Sullivan a...@shinkuro.com Shinkuro, Inc. _______________________________________________ DNSOP mailing list DNSOP@ietf.org https://www.ietf.org/mailman/listinfo/dnsop
