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[Orgmode] Re: Useful utility function: org-sort-multi
From: |
Ryan C. Thompson |
Subject: |
[Orgmode] Re: Useful utility function: org-sort-multi |
Date: |
Sun, 30 Aug 2009 13:55:45 -0700 |
User-agent: |
Thunderbird 2.0.0.23 (X11/20090817) |
Benjamin Andresen wrote:
if you have the following list
* Test Sorting
** TODO Charlie
** WAITING Beta
** TODO Alpha
** STARTED Beta
** STARTED Charlie
** TODO Beta
** STARTED Alpha
** WAITING Charlie
** WAITING Alpha
calling org-multi-sort with ?o ?a will sort it like this
* Test Sorting
** TODO Alpha
** TODO Beta
** TODO Charlie
** STARTED Alpha
** STARTED Beta
** STARTED Charlie
** WAITING Alpha
** WAITING Beta
** WAITING Charlie
but just ?a would completely ignore the TODO, STARTED, WAITING order.
Thanks Ryan, pretty useful.
br,
benny
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That's right, the function relies on the fact that org's sorting is
stable. So the results of earlier sorts are preserved as much as
possible in later sorts. Of course, this is really inefficient, but oh well.
As another test case, try using (org-sort-multi ?o ?p) on this:
* Multi-sort test
** DONE [#B]
** TODO [#C]
** STARTED [#C]
** STARTED [#A]
** DONE [#C]
** TODO [#B]
** TODO [#A]
** STARTED [#B]
** DONE [#A]
Anyway, Carsten, if you think this would be useful, feel free to include
some variant of this in org-mode itself. You'd probably want to
implement it as a one-pass sort in which the set of sorting criteria
function as a series of fallbacks for tiebreakers, rather than a series
of sorts.
Ryan