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Re: [apps-discuss] Review of: draft-yevstifeyev-abnf-separated-lists-02

Julian Reschke <julian.reschke@gmx.de> Sat, 11 December 2010 11:09 UTC

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Date: Sat, 11 Dec 2010 12:10:32 +0100
From: Julian Reschke <julian.reschke@gmx.de>
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To: Dave CROCKER <dcrocker@bbiw.net>
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Cc: Mykyta Yevstifeyev <evnikita2@gmail.com>, "apps-discuss@ietf.org" <apps-discuss@ietf.org>
Subject: Re: [apps-discuss] Review of: draft-yevstifeyev-abnf-separated-lists-02
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On 10.12.2010 21:38, Dave CROCKER wrote:
> ...
> Given continuance of the old "#" form, I wonder whether it might be
> worth assembling whatever ABNF enhancements are out in the wild into an
> Informational document, so that they stand on their own and are easily
> citable? Should anyone have need of one or another of these, they can
> simply invoke it rather than having to (once again) specify it.
> ...

Indeed, that would be a good idea.

Some more thoughts:

- Please don't mess with RFC 5234 until those extensions are well 
understood and *in use*.

- Specifying is not sufficient; the few parsing and validation tools 
need to be extended. (*)

- I'm not sure why a new list production that is inspired by "#" can't 
have the same name.

Best regards, Julian

(*) In HTTPbis, we extended Bill Fenner's ABNF parser ("BAP") to accept 
the list production and re-serialize it in plain RFC 5234; this is what 
we're using to produce the 5234-style ABNF. See 
<http://trac.tools.ietf.org/wg/httpbis/trac/browser/abnfparser/bap>.

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