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Re: [Json] On flat vs nested JSON encoding style

John Cowan <cowan@mercury.ccil.org> Fri, 05 February 2016 08:53 UTC

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Date: Fri, 05 Feb 2016 03:53:48 -0500
From: John Cowan <cowan@mercury.ccil.org>
To: Carsten Bormann <cabo@tzi.org>
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References: <CAMm+LwirhVcmUkdfyA3WKe_W747JTWNF1Ht2Nr8NJdDxOFCJOw@mail.gmail.com> <56B36D15.1030306@gmail.com> <56B370A1.1050508@tzi.org> <56B373B8.7040305@gmail.com> <20160205001717.GC2997@mercury.ccil.org> <CAMm+Lwg4iqKtUjX+gw2zMu6A-fRc7_MRT14R3n670gBzMtdP9Q@mail.gmail.com> <56B43FCE.6080408@gmail.com> <56B45220.7080602@tzi.org>
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Cc: JSON WG <json@ietf.org>, Anders Rundgren <anders.rundgren.net@gmail.com>
Subject: Re: [Json] On flat vs nested JSON encoding style
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Carsten Bormann scripsit:

> *) Decimal number representation code is hard.  (I'm too lazy to look up
> the CVEs to provde this.)  Even sorting text is not exactly easy.

Decimal number representations are a well-solved problem in the Scheme
community.  See <http://people.csail.mit.edu/jaffer/III/EZFPRW> for the
code.  The references provide the background.

For canonicalization, sorting text based on lexicographical code point order
is the Right Thing, and that's well-understood too.  The only trick is to
make sure not to sort by 16-bit code units, as it gives a different answer
when comparing characters above U+FFFF with those in the range E000-FFFF.

-- 
John Cowan          http://www.ccil.org/~cowan        cowan@ccil.org
But you, Wormtongue, you have done what you could for your true master.  Some
reward you have earned at least.  Yet Saruman is apt to overlook his bargains.
I should advise you to go quickly and remind him, lest he forget your faithful
service.  --Gandalf

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