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Re: [I18ndir] [art] Fwd: New Version Notification for draft-bray-unichars-04.txt

Asmus Freytag <asmusf@ix.netcom.com> Mon, 18 September 2023 20:17 UTC

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Date: Mon, 18 Sep 2023 13:17:32 -0700
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To: Rob Sayre <sayrer@gmail.com>, "Manger, James" <James.H.Manger=40team.telstra.com@dmarc.ietf.org>
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From: Asmus Freytag <asmusf@ix.netcom.com>
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Subject: Re: [I18ndir] [art] Fwd: New Version Notification for draft-bray-unichars-04.txt
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On 9/18/2023 11:09 AM, Rob Sayre wrote:
> On Mon, Sep 18, 2023 at 10:51 AM Rob Sayre <sayrer@gmail.com> wrote:
>
>     On Mon, Sep 18, 2023 at 7:05 AM Manger, James
>     <James.H.Manger=40team.telstra.com@dmarc.ietf.org> wrote:
>
>         For understandable reasons, JSON supports both *(%x0-D7FF /
>         %xE000-10FFFF) and *(%x0-FFFF) (arbitrary 16-bit data) as
>         models for the logical strings it can represent.
>
>
>     ECMA-404 is clear: "JSON syntax describes a sequence of Unicode
>     code points." and the discrepancy between this text and RFC8259 is
>     what motivated this document. The document also seems to fairly
>     clearly recommend against using this production if you can help it.
>
>
> Perhaps this document should reference 
> <https://unicode.org/reports/tr17/#Strings> (note authors), which 
> covers similar territory.
>
Thanks for noticing.

The need for transient states that are discoverable (that is, not fully 
encapsulated) is a big reason why many specs are not tighter.

However, there are points in a protocol where strings aren't in a 
transient processing state, and here the full restrictions should apply 
(and be specified).

A./

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