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Re: [http-state] BNF notation differences, was: Comments on draft-ietf-httpstate-cookie-08.txt (1 - 4.1.2.)

Julian Reschke <julian.reschke@gmx.de> Fri, 16 July 2010 10:08 UTC

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Date: Fri, 16 Jul 2010 12:08:50 +0200
From: Julian Reschke <julian.reschke@gmx.de>
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To: Adam Barth <ietf@adambarth.com>
References: <f5jqv5pu3oksmjndegd5a329gp40opqsr5@hive.bjoern.hoehrmann.de> <AANLkTin2dZ3v681D2W4yZEHhnc_0G8mAQRsMA8ZQ6wWF@mail.gmail.com> <g13rv59fpsefi1jhuuuds4evqqc8baia7o@hive.bjoern.hoehrmann.de> <AANLkTimUXR0FI3D3KKZ2rOO2QEEGReKlRBCY5ZanwL24@mail.gmail.com> <lbb706tqebunfropg9o1teehms9fu5aq53@hive.bjoern.hoehrmann.de> <AANLkTinmliI2Sp0hU0m0IqzWpEpACeNLbW_Q_KeQnJ-O@mail.gmail.com> <4C3DC535.4020205@gmx.de> <hchr365sh9132rbgacd7750mjn17th5rh8@hive.bjoern.hoehrmann.de> <AANLkTin6pEREhPvFy18qnNiZ8iG221NDOrkkVP0uXeeU@mail.gmail.com>
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Cc: http-state@ietf.org
Subject: Re: [http-state] BNF notation differences, was: Comments on draft-ietf-httpstate-cookie-08.txt (1 - 4.1.2.)
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On 14.07.2010 19:16, Adam Barth wrote:
> On Wed, Jul 14, 2010 at 7:19 AM, Bjoern Hoehrmann<derhoermi@gmx.net>  wrote:
>> * Julian Reschke wrote:
>>> So the comment was applied to sane-cookie-date, but it also applies to
>>> token. Furthermore, the ABNF for domain-value (RFC 1034) uses yet
>>> another syntax. So maybe it would be better to remove the comment again,
>>> and just to add a prose warning that these three productions inherited
>> >from other specs are defined in different variants of ABNF.
>>
>> The reference to RFC 1034 is most likely in error, the subdomain rule
>> there prohibits for instance values that start with a digit; see e.g.
>> draft-iab-idn-encoding for some of the history around that.
>
> Is there another reference you'd prefer?

What's the actual constraint you want the ABNF to express? Shouldn't 
this be very similar to the value of the HTTP host header field, thus 
<http://tools.ietf.org/html/rfc3986#section-3.2.2>?

Best regards, Julian

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