Re: [idn] hostname history hell

["Eric A. Hall" <ehall@ehsco.com>]

Patrik Fältström wrote:

> The nameprep draft which was a result of the nameprep group did come up
> with a list of excluded codepoints, and those are very delicately
> divided into "Mapped out" (Section 3.1) and "Prohibited Output"
> (Section 5).
> 
> Is the intention to update / change these lists?
> 
> I.e. is this discussion a comment on the nameprep draft?
> 
> Basically, I feel we have already done this once, and need arguments for
> starting all over again.

I think it is fair to say that the current discussion is about i18n domain
names and host identifiers, and what is legal vs illegal for those names.
It is starting to bump into nameprep but I wouldn't call it a
repeat/update to nameprep at this point.

For example, nameprep doesn't prohibit leading/trailing hyphens, although
there seems to be consensus that they should be prohibited in i18n host
identifiers.

If the thread keeps moving in its current direction, there may be a need
to update nameprep. I also think nameprep is providing valuable input to
the hostname restrictions (control exclusions are good). I would hope that
this is being seen as refinement of consensus rather than competition.

-- 
Eric A. Hall                                        http://www.ehsco.com/
Internet Core Protocols          http://www.oreilly.com/catalog/coreprot/