Re: Use of LWSP in ABNF -- consensus call
Dave Crocker <dcrocker@bbiw.net> Sat, 22 September 2007 16:43 UTC
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Date: Sat, 22 Sep 2007 09:42:25 -0700
From: Dave Crocker <dcrocker@bbiw.net>
Organization: Brandenburg InternetWorking
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Subject: Re: Use of LWSP in ABNF -- consensus call
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On 5/14/2007 Lisa Dusseault wrote: > The IESG reviewed > <http://www.ietf.org/internet-drafts/draft-crocker-rfc4234bis-00.txt> > for publication as Internet Standard and would like to know if there is > consensus to recommend against the use of LWSP in future specifications, > as it has caused problems recently in DKIM and could cause problems in > other places. > > Some discussion on this point already: > - http://www1.ietf.org/mail-archive/web/ietf/current/msg46048.html > - http://www1.ietf.org/mail-archive/web/discuss/current/msg00463.html > - http://mipassoc.org/pipermail/ietf-dkim/2007q1/007295.html > - > https://datatracker.ietf.org/public/pidtracker.cgi?command=view_comment&id=66440 > (in this tracker comment, Chris Newman recommended to remove LWSP, but > for backward-compatibility it's probably better to keep it and recommend > against use) Folks, The current situation with elevating the ABNF document to full Internet Standard is that Lisa has a Discuss hold on it, on behalf of an IESG view that a warning note should be attached. Acting as an individual contributor, Chris Newman has offered the following change to the document, as a possible means of resolving things: > OLD: > LWSP = *(WSP / CRLF WSP) > ; linear white space (past newline) > NEW: > LWSP = *(WSP / CRLF WSP) > ; Use of this linear-white-space rule permits > ; lines containing only white space that are no > ; longer legal in mail headers and have caused > ; interoperability problems in other contexts. > ; Do not use when defining mail headers and use > ; with caution in other contexts. The nature of the IETF process is such that there are no guarantees for what will resolve a Discuss, but the signs are good that a consensus on this list, for a note of this type, will suffice. The premise is that the discussion on this list, last May, had consensus to retain the LWSP construct and consensus to add a warning. The text that Chris is suggesting seems to accomplish this. In spite of saying "Do not use", the comment is non-normative, in formal IETF specification terms. Yet it does seem to adequately describe the problem and the way to deal with it. So, I'm going to ask for a consensus call on this modification, where the assumption is that the text is acceptable. All that is needed is for folk who *object* to speak up and state their reasons. If there is consensus *against* this change, we'll have to try something else. Absent a consensus *against* the wording change, we will propose it to Lisa and see if that resolves her Discuss. This consensus call closes on Sunday, 30 September. Thanks. d/ -- Dave Crocker Brandenburg InternetWorking bbiw.net
- Use of LWSP in ABNF -- consensus call Lisa Dusseault
- Re: Use of LWSP in ABNF -- consensus call Julian Reschke
- Re: Use of LWSP in ABNF -- consensus call Frank Ellermann
- Re: Use of LWSP in ABNF -- consensus call Lisa Dusseault
- Re: Use of LWSP in ABNF -- consensus call Paul Hoffman
- Re: Use of LWSP in ABNF -- consensus call Tony Hansen
- Re: Use of LWSP in ABNF -- consensus call Tony Finch
- Re: Use of LWSP in ABNF -- consensus call Clive D.W. Feather
- Re: Use of LWSP in ABNF -- consensus call Keith Moore
- Re: Use of LWSP in ABNF -- consensus call Harald Alvestrand
- Re: Use of LWSP in ABNF -- consensus call Frank Ellermann
- Re: Use of LWSP in ABNF -- consensus call Ned Freed
- Re: Use of LWSP in ABNF -- consensus call John C Klensin
- Re: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… Tony Finch
- Re: Use of LWSP in ABNF -- consensus call Dave Crocker
- Re: Use of LWSP in ABNF -- consensus call Eric Allman
- Re: Use of LWSP in ABNF -- consensus call Philip Guenther
- Re: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… Dave Crocker
- Re: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… Dave Crocker
- Re: Use of LWSP in ABNF -- consensus call Douglas Otis
- Re: Use of LWSP in ABNF -- consensus call Alexey Melnikov
- RE: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… Bill.Oxley
- Re: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… John C Klensin
- Re: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… John C Klensin
- Re: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… Tony Finch
- Re: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… John C Klensin
- Re: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… Harald Tveit Alvestrand
- Re: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… Dave Crocker
- Re: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… todd glassey
- Re: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… Sam Hartman
- Re: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… Sam Hartman
- Re: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… Dave Crocker
- Re: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… Tony Finch
- Re: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… John C Klensin
- Re: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… Keith Moore
- Re: Use of LWSP in ABNF -- consensus call Frank Ellermann
- Re: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… Tony Finch
- Re: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… Sam Hartman
- Re: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… Sam Hartman
- Re: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… John C Klensin
- Re: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… Tony Finch
- Re: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… Sam Hartman
- Re: Use of LWSP in ABNF -- consensus call Lisa Dusseault
- Re: [ietf-dkim] Re: Use of LWSP in ABNF -- consen… Clive D.W. Feather
- Re: Use of LWSP in ABNF -- consensus call Lisa Dusseault
- Re: Use of LWSP in ABNF -- consensus call Dave Crocker
- Re: Use of LWSP in ABNF -- consensus call Keith Moore
- Re: Use of LWSP in ABNF -- consensus call Frank Ellermann
- Re: Use of LWSP in ABNF -- consensus call John C Klensin
- Re: Use of LWSP in ABNF -- consensus call Alexey Melnikov
- Re: Use of LWSP in ABNF -- consensus call Clive D.W. Feather
- Re: Use of LWSP in ABNF -- consensus call Dave Crocker