No, I don't think trying to make that syntax change is appropriate for
this draft at this point
in its life-cycle.
RjS
On Jan 29, 2010, at 2:40 PM, Vijay K. Gurbani wrote:
Robert: Please see question directed to you at the end of this
email.
Dale Worley wrote:
As long as we're explicating the syntax, it seems reasonable to
enunciate what "everybody knows" about its interpretation.
Dale: I am not being an obstructionist here, so please
do not take the comments as such.
I believe that "everybody knows" that dotted-decimal is
well, dotted-"decimal" and not dotted-"octal". The fact
that some C libraries interpret the leftmost 0 as a
hint to enter octal mode is unfortunate, but I don't see
how putting admonitions here will solve that particular
problem.
That said, one quick observation is that the production rule for
<IPv4address> literal defined in rfc3986 is more close
to your intent than the one defined in rfc3261. More
specifically, here they are:
rfc3986:
A host identified by an IPv4 literal address is represented in
dotted-decimal notation (a sequence of four decimal numbers in the
range 0 to 255, separated by "."), as described in [RFC1123] by
reference to [RFC0952]. Note that other forms of dotted notation may
be interpreted on some platforms, as described in Section 7.4, but
only the dotted-decimal form of four octets is allowed by this
grammar.
IPv4address = dec-octet "." dec-octet "." dec-octet "." dec-octet
dec-octet = DIGIT ; 0-9
/ %x31-39 DIGIT ; 10-99
/ "1" 2DIGIT ; 100-199
/ "2" %x30-34 DIGIT ; 200-249
/ "25" %x30-35 ; 250-255
rfc3261:
IPv4address = 1*3DIGIT "." 1*3DIGIT "." 1*3DIGIT "." 1*3DIGIT
So, we could deprecate the existing rfc3261 syntax for IPv4address
and replace it with the one for rfc3986.
Robert: Is this okay with you? If so, I can put the above change
in the draft as well.
Thanks,
- vijay
--
Vijay K. Gurbani, Bell Laboratories, Alcatel-Lucent
1960 Lucent Lane, Rm. 9C-533, Naperville, Illinois 60566 (USA)
Email: v...@{alcatel-lucent.com,bell-labs.com,acm.org}
Web: http://ect.bell-labs.com/who/vkg/
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