Re: [Last-Call] New Version Notification for draft-crocker-inreply-react-07.txt

[Ricardo Signes <[e-mail]>]

On Thu, Feb 25, 2021, at 10:57 AM, Patrik Fältström wrote:
> 2. As liaison from IETF to Unicode Consortium
> 
> I see the document do specify emoji sequences to make it possible to send such things.
> 
> emoji = emoji_sequence
> emoji_sequence = { defined in [Emoji-Seq] }
> 
> I am strongly objecting to allow any emoji sequences without having a very well defined rule what what they are. This description above is in an EBNF and the spec references is definitely not that clear.

It looks like objections have perhaps been rescinded now, but:  I don't understand the nature of this objection, if it stands.

This is not like the use of non-ASCII characters in domain names, because reactions are not used as resource locators.  If a visually confusable emoji is used to replace another, the reader is not misled into arriving at the wrong resource.

It's true that the definition of emoji sequence is not (yet?) entirely stable.  In the context of message content, I'm not sure what teeth the dragon is presenting here.  I agree that I would not want to use this reference to TR51 in specifying many kinds of things, but in this context, I don't see the problem.

-- 
rjbs