bug#57400: 29.0.50; Support sending patches from VC directly

[Philip Kaludercic <philipk@posteo.net>]

(not sure if my last message got send out, so I'll rewrite it)

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Philip Kaludercic <philipk@posteo.net>
>> Cc: larsi@gnus.org,  57400@debbugs.gnu.org,  ane@iki.fi
>> Date: Tue, 04 Oct 2022 10:40:23 +0000
>> 
>> Eli Zaretskii <eliz@gnu.org> writes:
>> 
>> > Can you ask more specific questions?  Are you looking for a generic
>> > way of doing what message-goto-body does?  
>> 
>> Kind of, I would like to have some function that would place the point
>> at the beginning of the message body, no matter what MUA is used.  From
>> what I see, the implicit assumption always is that a message is composed
>> in a single buffer where the headers are written out at the beginning of
>> the buffer, then there is some kind of to detect the end of the headers,
>> followed by the body.  But what if a MUA wants to use a separate buffer
>> for the headers and the body, placing them in two separate windows?
>> What if the headers aren't shown at all?  If I want to handle the
>> situation generically, it seems like I would have to take all the design
>> decisions into consideration.
>
> Do you happen to know about such MUAs?  mail-user-agent currently
> supports just 4 MUAs: do any of them work like above?

Not to my knowledge, but my concern was that it might be possible for
something like that to exist.  I'll ask around to find out.

> We could bite the bullet and make this operation a property of
> mail-user-agent, like 'composefunc' we already have (see the doc
> string of define-mail-user-agent for the full list).  But if
> rfc822-goto-eoh can do the job, maybe it's "good enough"?

If you think so, then I'll follow that.

>> >                                            If so, would
>> > rfc822-goto-eoh do the job?
>> 
>> It doesn't seem to do the same, as in message-mode, it jumps to the
>> beginning of the "--text follows this line--" line, not to the line
>> after it.
>
> Well, moving one line after that, if this is the line you get to with
> that function, is easy.  Don't all MUAs have that line?

Perhaps, but again not by necessity, just by (historical) chance.