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Re: Sorting with threads in Gnus


From: Tassilo Horn
Subject: Re: Sorting with threads in Gnus
Date: Fri, 26 Jul 2013 07:48:05 +0200
User-agent: Gnus/5.130008 (Ma Gnus v0.8) Emacs/24.3.50 (gnu/linux)

Eric Abrahamsen <eric@ericabrahamsen.net> writes:

Hi Eric,

>> However, as soon as I add `gnus-thread-sort-by-total-score' and
>> `gnus-thread-sort-by-most-recent-date' to
>> `gnus-thread-sort-functions', the sorting inside threads goes wonky
>> as well...
>
> I doubt I'll be able to help -- I don't use scoring, and most of my gnus
> configurations seem to involve some degree of magical thinking.
>
> Just for clarity, your desired setup, that goes "wonky", would look like
> this:
>
> (setq gnus-thread-sort-functions
>       '(gnus-thread-sort-by-total-score
>         gnus-thread-sort-by-most-recent-date)
>       gnus-sort-gathered-threads-function
>       'gnus-thread-sort-by-date)
>
> Is that right?

Not quite.  I think that would be my perfect setup:

--8<---------------cut here---------------start------------->8---
(setq gnus-thread-sort-functions
      '(gnus-thread-sort-by-number
        gnus-thread-sort-by-date
        gnus-thread-sort-by-most-recent-date
        gnus-thread-sort-by-total-score)
      gnus-sort-gathered-threads-function 'gnus-thread-sort-by-date)
--8<---------------cut here---------------end--------------->8---

> So it's the 'gnus-thread-sort-by-date effect inside the threads
> themselves that's going wrong? Wonky how?

I don't really see its effect.  With
`gnus-sort-gathered-threads-function' set to the default value
`gnus-thread-sort-by-number' I get the same sorting order.

The problem is that Gnus seems to sort threads and also subthreads with
`gnus-thread-sort-functions'.  So in my case, high-score subthreads will
come before low-score subthreads, and when the score is equal,
subthreads with more recent articles will come before subthreads with
older recent articles.  But inside threads, I want sorting to be
strictly chronological from old to new.

For example, below Y should be before the subthread X, because it's
older.

--8<---------------cut here---------------start------------->8---
O ┃  ┃Juanma Barranquero     ┃ ╭●  frame size&position woes <Jul 21 2013 14:56>
O ┃  ┃martin rudalics        ┃ ├──❯   <Jul 21 2013 16:03>               ;; X
O ┃  ┃Juanma Barranquero     ┃ │╰──❯   <Jul 21 2013 17:42>
O ┃  ┃martin rudalics        ┃ │ ├──❯   <Jul 22 2013 10:22>
O ┃  ┃Juanma Barranquero     ┃ │ │╰──❯   <Jul 22 2013 11:40>
O ┃  ┃Eli Zaretskii          ┃ │ │ ╰──❯   <Jul 22 2013 17:52>
O ┃  ┃Juanma Barranquero     ┃ │ │  ╰──❯   <Jul 22 2013 22:36>
O ┃  ┃Eli Zaretskii          ┃ │ │   ╰──❯   <Jul 23 2013 04:45>
O ┃  ┃Juanma Barranquero     ┃ │ │    ╰──❯   <Jul 24 2013 01:47>
O ┃  ┃Eli Zaretskii          ┃ │ │     ╰──❯   <Jul 24 2013 05:55>
O ┃  ┃Juanma Barranquero     ┃ │ │      ╰──❯   <Jul 24 2013 12:42>
O ┃  ┃Eli Zaretskii          ┃ │ │       ╰──❯   <Jul 24 2013 16:37>
O ┃  ┃Juanma Barranquero     ┃ │ │        ╰──❯   <Jul 24 2013 16:51>
O ┃  ┃Eli Zaretskii          ┃ │ │         ╰──❯   <Jul 24 2013 18:55>
O ┃  ┃Juanma Barranquero     ┃ │ │          ╰──❯   <Jul 24 2013 19:01>
O ┃  ┃Eli Zaretskii          ┃ │ │           ╰──❯   <Jul 24 2013 19:41>
O ┃  ┃Juanma Barranquero     ┃ │ │            ╰──❯   <Jul 24 2013 19:49>
O ┃  ┃Juanma Barranquero     ┃ │ ╰──❯   <Jul 21 2013 17:58>
O ┃  ┃Juanma Barranquero     ┃ ╰──❯   <Jul 21 2013 14:58>               ;; Y
--8<---------------cut here---------------end--------------->8---

I hoped that `gnus-thread-sort-functions' was applied only to thread
roots, and `gnus-sort-gathered-threads-function' to subthreads, but that
doesn't seem to be tha case.

Bye,
Tassilo




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