Re: [VCARDDAV] [Technical Errata Reported] RFC6350 (3136)

[Peter Saint-Andre <[e-mail]>]

On 2/27/12 7:17 AM, Simon Perreault wrote:
> On 2012-02-27 09:02, Barry Leiba wrote:
>> On Mon, Feb 27, 2012 at 08:29, Simon Perreault
>> <[e-mail]>  wrote:
>>> On 2012-02-25 20:07, RFC Errata System wrote:
>>>>
>>>> Original Text
>>>> -------------
>>>>     QSAFE-CHAR = WSP / "!" / %x23-7E / NON-ASCII
>>>>       ; Any character except CTLs, DQUOTE
>>>>
>>>>     SAFE-CHAR = WSP / "!" / %x23-39 / %x3C-7E / NON-ASCII
>>>>       ; Any character except CTLs, DQUOTE, ";", ":"
>>>>
>>>>     VALUE-CHAR = WSP / VCHAR / NON-ASCII
>>>>       ; Any textual character
>>>>
>>>>
>>>> Corrected Text
>>>> --------------
>>>>     QSAFE-CHAR = WSP / "!" / %x23-7E / NON-ASCII
>>>>       ; Any character except CTLs, DQUOTE but including HTAB
>>>>
>>>>     SAFE-CHAR = WSP / "!" / %x23-39 / %x3C-7E / NON-ASCII
>>>>       ; Any character except CTLs, DQUOTE, ";", ":" but including HTAB
>>>>
>>>>     VALUE-CHAR = WSP / VCHAR / NON-ASCII
>>>>       ; Any textual character including HTAB
>>>
>>>
>>> I don't understand the point of your change. "Any character" implicitly
>>> includes HTAB. Why does it need to be repeated? Do we also need to
>>> say "any
>>> character including A, B, C, D, ..."?
>>
>> His point for the first two is that HTAB is a CTL (according to RFC
>> 5234), so the comment "any character except CTLs" excludes HTAB.  But
>> the grammar uses WSP, which *includes* HTAB (also RFC 5234).  So the
>> comment is not consistent with the grammar.  Either change WSP to SP
>> (thus excluding HTAB, as the comment says) or make the change he
>> suggests to the comment, so it's consistent with the grammar.
> 
> Got it, thanks.
> 
>> For the third item, VALUE-CHAR, I think the point is that it's not
>> clear whether HTAB is a "textual character", since that term isn't
>> formally defined.  By saying "including HTAB" in the comment (since
>> it's included by WSP), it's clearer.
> 
> Makes sense.
> 
>> I think this is a correct erratum.
> 
> Me too!

I shall mark this as "Verified".

Peter

-- 
Peter Saint-Andre
https://stpeter.im/