[ietf-dkim] ADSP 4.2.1. Record Syntax clarification

[Hector Santos]

Barry Leiba wrote:
>> Should the ABNF be this instead?
>>
>>     ABNF:
>>           adsp-dkim-tag = %x64.6b.69.6d *WSP "=" *WSP
>>                           ("unknown" / "all" / "discardable")[";"]
>>
>> I ask just in case future updates or new new tags are added.  I wish
>> to make sure the ADSP implementation do not fall trap to just checking
>> the entire string so that is all that is currently defined.
> 
> That's taken care of by the "tag-list" ABNF construction, as defined
> in 4871.  See section 4.3 of the ADSP document (particularly the
> second paragraph).
> 
> Barry

Ok, so even though the ADSP spec ABNF does not explicitly state the 
implied semi-colon delimiter (as I think the stated ABNF should have 
to be technically correct), it is implied and expected (optionally) 
using the same "tag-list" parsing logic in RFC 4871.

PS: Where is Frank Ellerman? <g>

-- 
Sincerely

Hector Santos
http://www.santronics.com