lua-users home
lua-l archive

[Date Prev][Date Next][Thread Prev][Thread Next] [Date Index] [Thread Index]

On Thu-2011/09/22-00:00 Petite Abeille wrote:
in gmane.comp.lang.lua.general
(MID <>):

> On Sep 21, 2011, at 12:38 AM, clemens fischer wrote:
>> According to RFC-5322 a "Message-ID" contains the string including
>> the angle brackets.
> Hmmm... somewhere near the end of "3.6.4.  Identification Fields":
> "Semantically, the angle bracket characters are not part of the
> msg-id; the msg-id is what is contained between the two angle bracket
> characters."

I think the emphasis is on "Semantically".  I take this to mean that the
part before the "@" and the part after it combined must be unique.  The
brackets are useless for this purpose.

This doesn't have to concern us regarding the purpose of a Message-ID in
emails, but we'd have to agree for the purpose of hashing them.

> Also... RFC 5256 (aka IMAP SORT and THREAD Extensions) mention the
> following:
> ...
>            For example, the msg-id
>               <"01KF8JCEOCBS0045PS">
>            and the msg-id
>               <>
>            MUST be interpreted as being the same Message ID.

This is more important, because some user agents might use quotes in the
"References:" or "In-Reply-To:" headers, others might not, so
normalizing is mandatory.