Re: SIMPLE chat: Internationalization and normalization of nicknames

On Mar 1, 2012, at 3:55 PM, Miguel A. Garcia wrote:

> Dear all:
> 
> I am trying to address the last known issue of the SIMPLE chat draft. This came through Enrico Marocco's Appsdir review, and the comment was:
> 
> The document doesn't describe allowed characters in Nicks and any
> normalization that needs to be applied.
> 
> So, I got advice from Alexy Melnikov, indicating that we should take a look at the ResourcePrep in:
> http://datatracker.ietf.org/doc/draft-ietf-xmpp-6122bis/
> 
> The idea is to inspire on the ResourcePrep and adapted to Nicknames in SIMPLE chat. However, there is a dependency on the completion of the Precis Framework:
> https://datatracker.ietf.org/doc/draft-ietf-precis-framework/
> 
> This means that SIMPLE chat will need to add a normative dependency to the Precis Framework, and if SIMPLE chat is approved and arrives to the RFC Editor before the Precis Framework, it will stay there until the framework reaches the RFC editor.

(as individual)

I concur with this approach in general, although I think we will find some differences between the Resource parts in 6122/6122bis and the use of nicknames in simple-chat. In particular:

1) A resource part identifies something. That makes uniqueness and comparisons fairly important. OTOH, a nickname is really for human display purposes. We still need to be able to compare them for reservations to work. And the human readability part means we should at least mention character confusion issues.

2) The 6122bis resource parts live inside URIs, while  simple-chat nicknames are just strings.

I'm not sure that these differences really change the outcome much--they're just things to think about.


> 
> I guess this is what we should do, but if someone has any other opinion, please let me know it.
> 
> The internationalization and normalization of nicknames will probably take a bit of my time until we do it. So, I propose to submit my current working copy, that contains all comments from Cullen, Christer, Saul, Suresh, etc. This will be version -14.

(as draft shepherd) 

Please do so. Hopefully we can get feedback as to whether they are okay with the changes related to their comments in parallel to working out the nickname issue.

Thanks!

Ben.