Re: [Jsonpath] Remarks on the array slice operator described in https://jsonpath-standard.github.io/internet-draft/#name-array-selector-2

Carsten Bormann <cabo@tzi.org> Wed, 09 December 2020 05:39 UTC

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From: Carsten Bormann <cabo@tzi.org>
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Date: Wed, 09 Dec 2020 06:39:24 +0100
Cc: Tim Bray <tbray@textuality.com>, jsonpath@ietf.org, Michael Kay <mike@saxonica.com>, Daniel P <danielaparker@gmail.com>
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To: Glyn Normington <glyn.normington.work@gmail.com>
Archived-At: <https://mailarchive.ietf.org/arch/msg/jsonpath/h2AX9gb74ZLlPofF3DGP4YrEPL4>
Subject: Re: [Jsonpath] Remarks on the array slice operator described in https://jsonpath-standard.github.io/internet-draft/#name-array-selector-2
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On 2020-12-09, at 04:36, Glyn Normington <glyn.normington.work@gmail.com> wrote:
> 
> Parsing Expression Grammar that fairly closely matches the ABNF

Interesting.  Because I’m lazy (and I want to make sure the ABNF is right), I generally use a PEG parser that is generated right out of the ABNF.

E.g.,
https://github.com/cabo/cddlc/blob/master/lib/parser/cddl.abnftt

(The abnftt gem generates code from the augmented ABNF, but also generates a clean ABNF file that can be diffed against the ABNF from the RFC.  See https://github.com/cabo/cddlc/blob/master/Rakefile .)

Obviously, using ABNF with PEG semantics requires some care when setting up the ABNF (don’t let prioritized choice get in your way).

Grüße, Carsten

[Jsonpath] Remarks on the array slice operator de… Daniel P
Re: [Jsonpath] Remarks on the array slice operato… Carsten Bormann
Re: [Jsonpath] Remarks on the array slice operato… Glyn Normington
Re: [Jsonpath] Remarks on the array slice operato… Glyn Normington
Re: [Jsonpath] Remarks on the array slice operato… Daniel P
Re: [Jsonpath] Remarks on the array slice operato… Marko Mikulicic
Re: [Jsonpath] Remarks on the array slice operato… Glyn Normington
Re: [Jsonpath] Remarks on the array slice operato… Glyn Normington
Re: [Jsonpath] Remarks on the array slice operato… Glyn Normington
Re: [Jsonpath] Remarks on the array slice operato… Daniel P
Re: [Jsonpath] Remarks on the array slice operato… Carsten Bormann
Re: [Jsonpath] Remarks on the array slice operato… Glyn Normington
Re: [Jsonpath] Remarks on the array slice operato… Glyn Normington
Re: [Jsonpath] Remarks on the array slice operato… Michael Kay
Re: [Jsonpath] Remarks on the array slice operato… Glyn Normington
Re: [Jsonpath] Remarks on the array slice operato… Carsten Bormann
Re: [Jsonpath] Remarks on the array slice operato… Michael Kay
Re: [Jsonpath] Remarks on the array slice operato… Daniel P
Re: [Jsonpath] Remarks on the array slice operato… Carsten Bormann
Re: [Jsonpath] Remarks on the array slice operato… Tim Bray
Re: [Jsonpath] Remarks on the array slice operato… Glyn Normington
Re: [Jsonpath] Remarks on the array slice operato… Carsten Bormann