Hi Jeff,
Jeff King wrote:
> On Thu, Sep 13, 2007 at 02:39:57PM +0200, Uwe Kleine-König wrote:
>
> > > > message-id's are defined to have the angle brackets.
> > > Yes, it's definitive, not having the < > is wrong as per RFC.
> > Which RFC do you mean here? If I read rfc822 correctly, it allows values
> > that are not enclosed in angle brackets.
>
> RFC 822, section 4.1 ("Syntax", bottom of page 18):
>
> msg-id = "<" addr-spec ">" ; Unique message id
right, but RFC 822 also has on page 18:
optional-field = ... / "In-Reply-To" ":" *(phrase / msg-id)
and if you take the phrase branch, it doesn't need to be enclosed in
angle brackets. Moreover the * means "zero or more of".
> 2822 contains similar BNF.
Ah, RFC 2822 has:
in-reply-to = "In-Reply-To:" 1*msg-id CRLF
msg-id = [CFWS] "<" id-left "@" id-right ">" [CFWS]
So there is no phrase branch any more, but still you can reference more
than one id.
Moreover RFC 2822 has a description of the (now obsolete) "phrase"s in
"In-Reply-To:" in chapter 4.5.4.
Best regards
Uwe
--
Uwe Kleine-König
Set the I_WANT_A_BROKEN_PS environment variable to force BSD syntax ...
-- manpage of procps
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