Re: [Uri-review] http://josefsson.org/draft-josefsson-dns-uri.txt

[Simon Josefsson <jas@extundo.com>]

I tried to clarify the character encoding section further.  I left the
rationale in parenthesis, but perhaps it should simply be removed.

Updated document at URL in Subject.  Unless there are more comments I
will send the new version to the I-D editor Thursday.

   Character encoding considerations: The characters are encoded as per
   the "URI Generic Syntax" RFC [4].  The DNS protocol do not consider
   character sets, it simply transports opaque data.  In particular, the
   "dnsname" field of the DNS URI are to be considered an
   internationalized domain name (IDN) unaware domain name slot, in the
   terminology of [13].  (The reason for this is that making these
   fields be IDN aware by, e.g., specifying that they are UTF-8 [6]
   strings, would require further encoding mechanisms to be able to
   express all valid DNS domain names.  This is because the DNS allows
   all octet sequences to be used as domain labels, so UTF-8 strings do
   not cover all possibilities.  Instead of defining further encoding
   mechanisms, we point applications with internationalization needs at
   the ASCII encoding described in [13] which should be satisfactory.)
   The considerations for "hostport" are discussed in [4]

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