Re: [idn] Re: idn-uri document

[Paul Hoffman / IMC <phoffman@imc.org>]

In draft -03, it says:

    For domain names containing non-ASCII characters, the Nameprep
    specification ([Nameprep]) defines some mappings, which mainly
    include normalization to NFKC and folding to lower case.  When
    encoding an internationalized domain name in an URI, these mappings
    SHOULD NOT be applied.  It should be assumed that the domain name is
    already normalized as far as appropriate.

Why the "SHOULD NOT"? What's wrong with a system that creates URIs doing that?

An alternate wording for the last two sentences would be:

    When encoding an internationalized domain name in an URI,
    these mappings do not need to be applied if the domain name is
    already normalized as far as appropriate.

--Paul Hoffman, Director
--Internet Mail Consortium