[ietf-dkim] Base-04 // ABNF cruft & errors

[Barry Leiba]

All of these in Doug's latest note seem like reasonable changes.  Only 
one thing:

> The RFC2822 FWS ABNF definition carries some cruft.
> 
> obs-FWS         =       1*WSP *(CRLF 1*WSP)    ; obsolete RFC822 text
> FWS             =       ([*WSP CRLF] 1*WSP) / obs-FWS
> 
> Is there a reason to permit multiple CRLFs? To obsolete support, the 
> definition should be removed after 5 years of being declared obsolete.
> 
> FWS should be redefined as Revised FWS such as:
> 
> R-FWS        =    ([*WSP CRLF] 1*WSP)    ; revised

I'd rather leave the FWS definition in RFC2822, rather than putting in 
our own.  Is there a way to say something that means "FWS from RFC2822, 
but NOT obs-FWS"?

Barry

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Barry Leiba, Internet Messaging Technology  (leiba at watson.ibm.com)
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