[EAI] Re: In-Reply-To

[Frank Ellermann <nobody at xyzzy.claranet.de>]

Kari Hurtta wrote:

 [2822]
> obs-in-reply-to =       "In-Reply-To" *WSP ":" *(phrase / msg-id) CRLF

> phrase          =       1*word / obs-phrase

 [I-D.ietf-eai-utf8headers-04]
>    word    = utf8-atom / utf8-quoted-string

Introducing UTF-8 in any <obs-cenities> is a dubious plan.  Here's
another example in the same direction:

| obs-bcc         =       "Bcc" *WSP ":" (address-list / [CFWS]) CRLF

The "C" in CFWS again.  Getting a clean split between terms used (also)
in <obs-cenities> and terms used (only) in no-nonsense sections (ch. 3)
in ABNF would be a big effort.

We better solve it once and for all in prose, something like this:

| The revised ABNF specified here is not intended to be used in obsolete
| forms of the relevant header fields or terms defined in the Internet
| Message Format chapter 4 [RFC 2822].  As stated in [RFC 2822] these
| obsolete forms MUST NOT be generated.
|
| Implementations supporting message/utf-8 MAY accept UTF-8 in obsolete
| forms of header fields and terms where the corresponding revised ABNF
| specified here suggests it, but this is not required.  The statement
| in [RFC 2822] that all implementations MUST accept the obsolete forms
| does not affect the use of UTF-8 in these obsolete forms.

> ( or ... are I already sent this? )

Don't think so.  I've got a bunch (about six or eight) messages from you
where I first thought that they might be "courtesy copies" showing up on
the list later, but that didn't happen.  If that was supposed to be
private mail please mention "off list" somewhere.  I could also try to
forward these mails to the list, but you probably have your own archive
of "sent" mails (list, unintentionally off list, or really off list).

Frank



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