[Json] What are we trying to do?

Tim Bray <tbray@textuality.com> Wed, 03 July 2013 05:01 UTC

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From: Tim Bray <tbray@textuality.com>
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Subject: [Json] What are we trying to do?
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I’m having trouble dealing with the recent proposals from our co-chairs
because I don’t think I understand what they’re trying to achieve.  Just to
refresh, our charter says

“The work is essentially a reclassification in place, with minimal changes.
The working group will   eview errata and update the document as needed to
incorporate those, and will correct significant  errors and
inconsistencies, but will keep changes to a minimum.

It is acknowledged that there are differences between RFC 4627 and the
ECMAScript specification  in the rules for parsing JSON. Any changes that
break compatibility with existing implementations of  either RFC 4627 or
the ECMAScript specification will need to have very strong justification
and broad support. ”

The changes proposed by the chairs are pretty big. Maybe the problem is
that any change which would actually CORRECT the two biggest
errors/inconsistencies in 4267 would necessarily be pretty significant.
When your charter is self-contradictory, you can either re-charter or
decide to ignore one of the two contradictory directives.

I was getting really comfortable with the minimal proposal, which noted
that while the spec more or less means what it says (strings should be
Unicode, objects should have unique keys), there are other standards with
different interpretations.  Also, there is variation among observed
behavior in software, when the JSON RFC’s high-level directives are
contravened.

What the industry really needs is a document normatively describing
JSON-as-best-practiced, with an RFC number.  It would say that senders MUST
NOT do X and Y, and that receivers, upon encountering X OR Y, MUST DO Z.
Thus  other spec writers can say “Do what RFCXXXX says” and not have to
resort to the sort of drafting pain that the people in Jose are
experiencing right now in order to avoid attacks on cryptographically
signed protocol elements by exploiting variation in dupe-key handling.

Is it the sense of the WG that such a document is within our mandate?  -T