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Re: [I18ndir] [art] Fwd: New Version Notification for draft-bray-unichars-05.txt

Tim Bray <tbray@textuality.com> Wed, 20 September 2023 17:50 UTC

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From: Tim Bray <tbray@textuality.com>
Date: Wed, 20 Sep 2023 10:50:19 -0700
Message-ID: <CAHBU6itXizt_3fzoOU+iZ3rfRWm2zoj1XC=-iQ30RKkSjJBv7g@mail.gmail.com>
To: Asmus Freytag <asmusf@ix.netcom.com>
Cc: i18ndir@ietf.org, ART Area <art@ietf.org>, Rob Sayre <sayrer@gmail.com>
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Subject: Re: [I18ndir] [art] Fwd: New Version Notification for draft-bray-unichars-05.txt
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On Sep 19, 2023 at 10:13:39 PM, Asmus Freytag <asmusf@ix.netcom.com> wrote:

> I agree with some of the commenters who mentioned that "problematic" is
> problematic because it combines two levels: code points that are not
> characters (whether surrogate or noncharacter) and a preference for a
> strict subset of the control codes. The former follows from the
> specification of the Unicode Standard. The latter is a preference, no
> matter how valid. And many other code points in Unicode are "problematic"
> in some way and in some cases, Unicode even recommends against their use.
>
> Even though there may be different reasons to exclude some code points,
> the end effect is the same: adopting a restricted subset repertoire that
> excludes code points the protocol does not want to support. From that
> perspective, all of these are on the same level, which motivates a single
> umbrella term.
>
I think by “problematic” we mean “unlikely to be appropriate for use in
text fields specified in IETF documents”.  Probably worth saying so.


>

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