Re: [Ietf-message-headers] Re: HTTP header registration question

At 18:58 07/09/29, Anne van Kesteren wrote:
>On Fri, 28 Sep 2007 17:00:01 +0200, Frank Ellermann  
><nobody@xyzzy.claranet.de> wrote:
>> Anne van Kesteren wrote:
>>
>>> I couldn't find definitions of "subdomain" and "label" elsewhere.
>>
>> http://tools.ietf.org/html/rfc3696 (+ errata) is a nice intro, what
>> you want are "LDH" (letter-digit-hyphen) labels permitted in "host"
>> names, not labels containing arbitrary octets.
>
>I'm not sure that RFC helps as it's informational only. Would using  
>ireg-name be appropriate? (We do not want to allow IP addresses for now.)

ireg-name doesn't cut up the name into labels, because it is intended
(similar to reg-name in RFC 3986) to cover other registries than just
the DNS, if and when these would be used in new schemes.

I suggest that you look at the IDNA RFCs if you want to get a definition
of a label including non-ASCII characters. IDNA definitely deals with
individual labels, because that's where punicode and the xn-- prefix
and all that stuff happen.

Regards,    Martin.s

#-#-#  Martin J. Du"rst, Assoc. Professor, Aoyama Gakuin University
#-#-#  http://www.sw.it.aoyama.ac.jp       mailto:duerst@it.aoyama.ac.jp     

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