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From: Andrew Young <youngar17@gmail.com>
Cc: emacs-orgmode@gnu.org, Carsten Dominik <carsten.dominik@gmail.com>
Subject: Re: [GSoC] org-merge-driver weekly update
Date: Wed, 6 Jun 2012 09:50:13 -0400	[thread overview]
Message-ID: <CAMvvmF8pgW+wcWtkVpfvxEvwVEbJ+F+kLwEK=ZyxCa1O0zi4oA@mail.gmail.com> (raw)
In-Reply-To: <m3vcj7m6vn.fsf@quad.robs.office>

Hi Robert Horn,

On Mon, Jun 4, 2012 at 11:30 AM, Robert Horn <rjhorn@alum.mit.edu> wrote:
> Another area that would be nice to address is taking advantage of the
> information in date-trees so assist with merging.  This is similar to
> the logic around keeping headlines in order.  With date trees there is a
> date and sometimes time tag to help.
>
> In addition to the occurrence order, there is also an ordering constraint on date trees that can be used to determine the proper delta.  You can use the date and time information in the headlines to determine the proper sequencing.
>
> For example, the delta/merger for two files of the form:
>     File 1:
>     * Year
>     ** Year-Month
>     *** Year-Month-Day
>     **** Y-M-D-Time1 stuff1 ...
>     **** Y-M-D-Time2 stuff2 ...
>     **** Y-M-D-Time4 stuff4 ...
>     **** Y-M-D-Time5 stuff5 ...
>     **** Y-M-D-Time9 stuff9 ...
>     File 2:
>     * Year
>     ** Year-Month
>     *** Year-Month-Day
>     **** Y-M-D-Time1 stuff1 ...
>     **** Y-M-D-Time2 stuff2 ...
>     **** Y-M-D-Time3 stuff3 ...
>     **** Y-M-D-Time6 stuff6 ...
>     **** Y-M-D-Time7 stuff7 ...
>
>     Should be:
>     * Year
>     ** Year-Month
>     *** Year-Month-Day
>     **** Y-M-D-Time1 stuff1 ...
>     **** Y-M-D-Time2 stuff2 ...
>     **** Y-M-D-Time3 stuff3 ...
>     **** Y-M-D-Time4 stuff4 ...
>     **** Y-M-D-Time5 stuff5 ...
>     **** Y-M-D-Time6 stuff6 ...
>     **** Y-M-D-Time7 stuff7 ...
>     **** Y-M-D-Time9 stuff9 ...
>
> This time aware merge logic will apply similarly to all levels of the date tree.
>
> Date trees are recognizable by the combination of headlines in this
> format.  A date tree can occur anywhere in an org file, but it will
> begin with a level one headline of the form "* YYYY", etc.
>
> R Horn
> rjhorn@alum.mit.edu

Thank you for the suggestion!  The program should support date trees.

I wonder if date trees specifically should be aggressively resorted
during the merge (reordering more headings than necessary, without
regards to the in-file ordering).  It is currently my opinion that the
program should try to retain the original ordering as much as
possible, only sorting the minimum number of headings necessary when
merging has made the ordering ambiguous.

Sincerely,
Andrew Young

  reply	other threads:[~2012-06-06 13:50 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-05-30 14:36 [GSoC] org-merge-driver weekly update Andrew Young
2012-05-30 17:15 ` Carsten Dominik
2012-05-30 17:56   ` Bastien
2012-05-31  7:31   ` Andrew Young
2012-05-31  7:38     ` Carsten Dominik
2012-06-04 15:30       ` Robert Horn
2012-06-06 13:50         ` Andrew Young [this message]
2012-06-06 13:56           ` Carsten Dominik
2012-06-06 14:20             ` Robert Horn
  -- strict thread matches above, loose matches on Subject: below --
2012-06-17  2:15 Andrew Young

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