emacs-orgmode@gnu.org archives
 help / color / mirror / code / Atom feed

From: Matt Lundin <mdl@imapmail.org>
To: "Alan E. Davis" <lngndvs@gmail.com>
Cc: org-mode <emacs-orgmode@gnu.org>
Subject: Re: Feature Request: Assort a subtree randomly ?
Date: Sat, 29 Jan 2011 09:42:05 -0500	[thread overview]
Message-ID: <87lj23ai0y.fsf@fastmail.fm> (raw)
In-Reply-To: <AANLkTimRRrQNCGwaHon=k18GCZWFniDoTvDJtXWCcX0b@mail.gmail.com> (Alan E. Davis's message of "Mon, 17 Jan 2011 11:51:52 +1000")

"Alan E. Davis" <lngndvs@gmail.com> writes:

> Let's say I have a subtree, of review materials, for example.  I would
> like to randomize the order of the elements.  I would like to have the
> option to randomize the subtree in some different ways:
>
>     1.  sort the members of one subtree that is a list, randomly.
>     2.  sort all the headlines, randomly.
>     3.  sort the subtrees randomly, and the lists within each
> sub-subtree also randomly, ad nauseum.
>
> I have written a sort routine in elisp.  It's been many long years ago,
> but I remember that the basis support for writing sorts is pretty
> general.
>
> Suppose I had time to do this.  What would I need to look at?
>

You can use the custom function in the sort command to supply org-sort
with a random number. When calling org-sort, note the function option
presented:

,----[ C-c ^ (org-sort)
| Sort %s: [a]lpha  [n]umeric  [p]riority  p[r]operty  todo[o]rder  [f]unc
| [t]ime [s]cheduled  [d]eadline  [c]reated
| A/N/T/S/D/C/P/O/F means reversed:
`----

You could thus write a quick function, using whatever amount of
randomness you want:

--8<---------------cut here---------------start------------->8---
(defun my-org-random-sort ()
  (random 1000))
--8<---------------cut here---------------end--------------->8---

Then on the appropriate subtree/table/list, type:

C-c ^ f my-org-random-sort

> Of course, my need is today, to sort review materials for my students
> in random order.

Sorry this response comes a little to late. :)

Best,
Matt

next prev parent reply	other threads:[~2011-01-29 14:42 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-01-17  1:51 Feature Request: Assort a subtree randomly ? Alan E. Davis
2011-01-29 14:42 ` Matt Lundin [this message]
2011-01-30 11:37   ` Alan E. Davis
2011-02-02 15:47   ` Bastien
2011-02-02 17:55     ` Matt Lundin

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

  List information: https://www.orgmode.org/

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=87lj23ai0y.fsf@fastmail.fm \
    --to=mdl@imapmail.org \
    --cc=emacs-orgmode@gnu.org \
    --cc=lngndvs@gmail.com \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link

Code repositories for project(s) associated with this public inbox

	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).