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Re: [Json] JSON Schema Language

Nico Williams <nico@cryptonector.com> Tue, 07 May 2019 22:17 UTC

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Date: Tue, 07 May 2019 17:17:27 -0500
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From: Nico Williams <nico@cryptonector.com>
To: Erik Wilde <erik.wilde@dret.net>
Cc: Phillip Hallam-Baker <ietf@hallambaker.com>, Tim Bray <tbray@textuality.com>, JSON WG <json@ietf.org>, Austin Wright <aaa@bzfx.net>, Anders Rundgren <anders.rundgren.net@gmail.com>
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Subject: Re: [Json] JSON Schema Language
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On Tue, May 07, 2019 at 02:56:10PM -0700, Erik Wilde wrote:
> On 2019-05-07 14:48, Phillip Hallam-Baker wrote:
> >     at the risk of referring to XSD too much, but i think they got it right:
> > 
> >     - constraining facets for constraining the value space.
> >     - lexical facets for constraining the representation of values.
> > 
> > I disagree on the constraining facets part. The only values I have found
> > useful to put in a schema are 0 or 1 minimum occurrences and 1 or
> > infinity maximum occurrences.
> 
> there may be a misunderstanding here. constraining facets are limiting the
> value space of datatypes, for example by defining minimum and maximum
> values.

As long as they don't constrain the encoding when multiple
representations are available.

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