At 01:35 01/07/19 +0000, D. J. Bernstein wrote:
>It seems safe to allow lowercase Greek alpha (and not the other alphas)
There are many accented Greek alphas; am I right that you would allow
them (in lower case)? There is a Latin alpha (in IPA), what about that?
There is a turned alpha (also in IPA), I guess that's no harm.
>as long as users _don't_ think they can type it in uppercase. We really
>should deprecate the use of uppercase characters in domain names.
Deprecating them looks like a good point, something that should go
in some of the drafts (maybe we need something like an 'advice to
users' draft?).
The nameprep draft might contain some advice to implementers about
whether to show the pre-nameprep or the post-nameprep string.
But I'm not sure it's worth throwing out the display of upper-case
(assuming about the same frequency as we have it currently)
to prevent the accidental confusion.
Regards, Martin.
