Hello Dave, others,
Sorry to be late with my comments.
On 02/03/2021 13:15, Dave Crocker wrote:
On 3/1/2021 9:20 AM, Barry Leiba wrote:
(1) Add a paragraph about emoji sequences (specifically, things that
This has been added to the end of Section 2:
Note:
The "emoji" token looks simple. It isn't. Implementors are
well-advised not to assume that emoji sequences are trivial to parse or
validate. Among other concerns, an implementation of the Unicode
Character Database is required. An emoji is more than a stand-in for a
simple alternation of characters. Similarly, one emoji sequence is not
interchangeable with, or equivalent to, another one, and comparisons
require detailed understanding of the relevant Unicode mechanisms. Use
of an existing Unicode implementation will typically prove extremely
helpful, as will an understanding of the error modes that may arise from
a chosen implementation.
I think this is a valuable addition. I was following the discussion for
a long time, and wanted to point to the Unicode implementations already
existing out there and the high probability that a mailer would use one
of these, but Ned finally pointed this out ahead of me.
I'd probably move the "Use of an existing Unicode implementation ..." to
the start of the paragraph, because we don't need to scare readers
uselessly. It may also be helpful to point out that if somebody just
implements base-emojis or any other smallish set of emoji, they don't
have to go to great lengths in their implementation efforts.
I agree with whoever has mentioned it that "*octet* sequences" needs to
be removed or replaced. I hope this has already happened.
I also agree that it's important to point out the fact that the same
emoji can be interpreted in completely different ways in different
cultures or even in the same culture or microculture. I was glad to see
that there was some addition about this between -08 and -09, but I think
it could (and SHOULD) be stronger. In particular, it should be pointed
out that the same emoji can have completely contradictory meanings and
offensive or obscene meanings in some cultures.
In terms of nits, I'm really unclear why section 4.1 (Example Message)
is where it is. Also, the hyphen in "possibly-interesting" might be
replaced by a space without loss of semantics.
Regards, Martin.
d/
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