Re: Problem with thread sorting

[Dan Christensen <jdc@uwo.ca>]

Lars Magne Ingebrigtsen <larsi@gnus.org> writes:

> pmlists@free.fr (Peter Münster) writes:
>
>> I've already tried that, but it doesn't work. Here my setup:
>>
>> (defun my-sort-gathered (h1 h2)
>>   (gnus-thread-sort-by-most-recent-date h2 h1))
>>
>> (setq
>>  gnus-sort-gathered-threads-function 'my-sort-gathered
>
> I tried playing around with this a bit.  If I reverse the order of h1
> and h2 in that function, the order of the gathered threads are
> reversed.  So it's doing something.  But is it doing things in reverse
> order? 

What do you think about my theory from another message in this thread?
I have included it below:

Dan Christensen wrote:

> I've also noticed bad sorting behaviour, and it might be the same issue
> you are seeing.  Like you, I sort threads by the most recent date, and
> in my Inbox I often have every second article in a conversation (the
> messages I sent are stored in my Sent group).  This causes Gnus to
> gather the articles together rather than treat them as one thread.  I
> think what is happening is that this gathering is done *after* the
> threads are sorted.  If I am right, then the solution is to form
> threads, gather them together to make "virtual" threads, and then sort
> those.  However, I think the sorting code assumes that all threads are
> trees, so false roots would be needed.  (Maybe false roots are always
> created behind the scenes no matter how gnus-summary-make-false-root is
> set?)
> 
> I'm swamped right now, so I won't be able to come up with a patch, but
> maybe the above is enough to help someone else fix this.
> 
> Dan