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Re: Fuzzy words [was Uppercase question for RFC2119 words]

Brian E Carpenter <brian.e.carpenter@gmail.com> Tue, 29 March 2016 23:52 UTC

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Subject: Re: Fuzzy words [was Uppercase question for RFC2119 words]
To: Dave Cridland <dave@cridland.net>, "HANSEN, TONY L" <tony@att.com>
References: <20160320223116.8946.76840.idtracker@ietfa.amsl.com> <949EF20990823C4C85C18D59AA11AD8BADEB0D16@FR712WXCHMBA11.zeu.alcatel-lucent.com> <56F79D05.8070004@alvestrand.no> <326E6502-28E5-4D09-BB99-4A5D80625EB0@stewe.org> <56F88E18.2060506@it.aoyama.ac.jp> <20160328104731.GO88304@verdi> <CALaySJ+hYMMsKE7Ws-NJbyqH55E-mQM-duTEcJGc0TWvTP88Ew@mail.gmail.com> <20160328132859.GP88304@verdi> <28975138-9EA1-4A9F-A6C0-BC1416B8EA44@sobco.com> <CALaySJJkNj2jfm0gJpuDzq8oFDjTNn-uQ5MHdmEOLwTiFZUyQQ@mail.gmail.com> <8975F15F-5C4C-4D02-98CD-BF4FDF104D35@sobco.com> <56F98CD1.10706@gmail.com> <CALaySJJ0WTU5m3b6Cad7ULyLHzpWeTpTFpu-y=hHyoYs5xqsXg@mail.gmail.com> <B0FC9E8C-9F20-43D0-904A-31BC19A9C476@sobco.com> <C03CD9A5D2557590F3F710C2@JcK-HP8200.jck.com> <CAKHUCzxm_2e7H0URpAsNO7BikwgaAmMvucYyEZ_M+NvND3JemA@mail.gmail.com> <82156918-B008-479C-BC6E-7A54930820D8@att.com> <CAKHUCzxvOEFXokPJjdDgBOO1HkPsfiQa6=8KEB9ziH76ccxPgw@mail.gmail.com>
From: Brian E Carpenter <brian.e.carpenter@gmail.com>
Organization: University of Auckland
Message-ID: <56FB1547.8030105@gmail.com>
Date: Wed, 30 Mar 2016 12:52:39 +1300
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On 30/03/2016 05:36, Dave Cridland wrote:
> On 29 March 2016 at 16:26, HANSEN, TONY L <tony@att.com> wrote:
> 
>> I also feel that a modified version of the RFC 2119 statement should be
>> defined and specified in a small RFC.
>>
>> I like Dave's addition, but also think adding the word "only" is worth
>> doing:
>>
>>       The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL
>>       NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED",  "MAY", and
>>       "OPTIONAL" in this document are to be interpreted as described in
>>       RFC 2119 only when capitalised.
>>
>> Leaving out the "only" still leaves the statement (slightly) ambiguous;
>> it's the same as the difference between "if" and "if and only if".
>>
>>
> I agree that's an improvement.

I think it's a significant improvement, despite my other comments. However,
we should also insert "NOT RECOMMENDED" (see the erratum #499 on 2119).

    Brian

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