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Re: [Json] Nudging the English-language vs. formalisms discussion forward

Nico Williams <nico@cryptonector.com> Wed, 19 February 2014 23:20 UTC

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Date: Wed, 19 Feb 2014 17:20:02 -0600
Message-ID: <CAK3OfOgOghu_4jxHuoDSnHbyJJRu=xa_YBmgO92CMspMQApceg@mail.gmail.com>
From: Nico Williams <nico@cryptonector.com>
To: Bjoern Hoehrmann <derhoermi@gmx.net>
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Cc: Barry Leiba <barryleiba@computer.org>, Phillip Hallam-Baker <hallam@gmail.com>, JSON WG <json@ietf.org>
Subject: Re: [Json] Nudging the English-language vs. formalisms discussion forward
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On Wed, Feb 19, 2014 at 4:57 PM, Bjoern Hoehrmann <derhoermi@gmx.net> wrote:
> The main problem with using ABNF for Y is that it is tedious to write it
> out properly, [...]

Some problems with ABNF beyond the ones you mention:

 - ABNF is a grammar for strings, but we're dealing with
already-parsed (notionally) JSON texts.  Augmenting the JSON ABNF to
specify a JSON message sounds painful.

 - Generating anything more than a recognizer/validator from ABNF is
difficult or difficult to use the results.

ABNF has its uses; this isn't one of them.

Nico
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