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Re: [Json] Proposed rechartering for the JSON WG

Nico Williams <nico@cryptonector.com> Sat, 08 February 2014 22:50 UTC

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Date: Sat, 08 Feb 2014 16:50:13 -0600
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From: Nico Williams <nico@cryptonector.com>
To: Tim Bray <tbray@textuality.com>
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Cc: Phillip Hallam-Baker <hallam@gmail.com>, Paul Hoffman <paul.hoffman@vpnc.org>, "json@ietf.org" <json@ietf.org>
Subject: Re: [Json] Proposed rechartering for the JSON WG
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On Fri, Feb 7, 2014 at 7:14 PM, Tim Bray <tbray@textuality.com> wrote:
> I really want to stay away from the slippery schema slope. [...]
>
> I think nomenclature means having a uniform standardised way to express the
> meaning of the words between "value of" and "MUST".  Perhaps something like
> XPath for JSON.

An XPath/XSLT for JSON would be good.  There's a great candidate for
that: http://stedolan.github.io/jq .   But I don't propose
standardizing such a thing.

> Disclosure: I'm not convinced this is necessary or even useful.

Schemas help document protocols.  They are as useful as ABNF, ASN.1,
and so on.  In practice we can't get to where we have 100% formal
descriptions of everything relevant to interop, but a total lack of
formality isn't exactly a good thing either.  In absence of a JSON
schema language (or three) we'll have to resort to showing examples
and English prose for the rest.

Nico
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