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Re: [Technical Errata Reported] RFC7230 (4189)

Julian Reschke <julian.reschke@gmx.de> Tue, 21 April 2015 13:18 UTC

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Date: Tue, 21 Apr 2015 15:13:34 +0200
From: Julian Reschke <julian.reschke@gmx.de>
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To: "Roy T. Fielding" <fielding@gbiv.com>, Barry Leiba <barryleiba@computer.org>
CC: RFC Errata System <rfc-editor@rfc-editor.org>, Pete Resnick <presnick@qti.qualcomm.com>, Mark Nottingham <mnot@mnot.net>, simon.schueppel@googlemail.com, HTTP Working Group <ietf-http-wg@w3.org>
References: <20141126195639.B3D5C181CE7@rfc-editor.org> <5476D0BC.70905@greenbytes.de> <CALaySJJh-9w2mnT9fV9dxaOJ_Tq=ipvV7nbNbEqY+g_6ppJjTg@mail.gmail.com> <723A86CD-6369-4A8A-B277-CBDA4439DCE9@gbiv.com>
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Subject: Re: [Technical Errata Reported] RFC7230 (4189)
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On 2015-02-06 23:32, Roy T. Fielding wrote:
> ...
> I looked at this originally and thought it made sense, but figured
> I would have to check carefully first before responding ... and
> then lost it.
>
> It should be verified as technical, but (like Julian) I think the
> fix should be limited to field-content and obs-fold:
>
> Section: 3.2
>
> Original Text
> -------------
>       field-name     = token
>       field-value    = *( field-content / obs-fold )
>       field-content  = field-vchar [ 1*( SP / HTAB ) field-vchar ]
>       field-vchar    = VCHAR / obs-text
>
>       obs-fold       = CRLF 1*( SP / HTAB )
>                      ; obsolete line folding
>                      ; see Section 3.2.4
>
> Corrected Text
> --------------
>       field-name     = token
>       field-value    = *( field-content / obs-fold )
>       field-content  = field-vchar [ 1*( SP / HTAB / field-vchar ) field-vchar ]
>       field-vchar    = VCHAR / obs-text
>
>       obs-fold       = OWS CRLF RWS
>                      ; obsolete line folding
>                      ; see Section 3.2.4
>
> This fixes the problem examples and keeps obs-fold separate from field-content.
> It would be best if some other folks could confirm the above before making
> the errata official.

Looks right to me.

The one thing I'd change is to change

   obs-fold       = OWS CRLF RWS

to

   obs-fold       = OWS CRLF 1*( SP / HTAB )

to minimize the diff from the RFC.

Best regards, Julian

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