[Last-Call] Re: [OAUTH-WG] draft-ietf-oauth-selective-disclosure-jwt-18 ietf last call Artart review

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Carsten Bormann writes:

> On 2. May 2025, at 12:04, Henry Thompson via Datatracker <noreply@xxxxxxxx> wrote:
>>
>>   ["26bc4LT-ac6q2KI6cBW5es", "family_name", "M%xc3%xb6bius"]   [2]
>
> The weird %x notation in the third element has nothing to do with
> JSON, which makes it difficult for me to understand the rest of what
> you are trying to say.

Apologies for the difficulty, but this is a very tricky area, in which
I think this spec. needs to be very careful to illustrate accurately
all of UNICODE characters, 
  * JSON strings (as type instances), components of JSON objects
  * What RFC 8259 calls "JSON text", the kind of thing you might find
    in a file or see rendered on screen
  * UTF-8 encoded JSON text, i.e. byte sequences which when decoded
    result in JSON text which, when parsed, yields JSON objects.

The problem you've encountered arises when one tries to illustrate
UTF-8 byte sequences in an unambiuous way in, for example, an IETF
RFC.

My recommendation is to follow RFC 8259's lead, and use e.g. "%xC3"
for that purpose.

Hope this helps,

ht
-- 
       Henry S. Thompson, School of Informatics, University of Edinburgh
                10 Crichton Street, Edinburgh EH8 9AB, SCOTLAND
                           e-mail: ht@xxxxxxxxxxxx
                      URL: https://www.ltg.ed.ac.uk/~ht/
 [mail from me _always_ has a .sig like this -- mail without it is forged spam]

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