From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nick Dokos <nicholas.dokos@hp.com>
Subject: Re: Re: Setting recurring deadlines
Date: Mon, 09 Feb 2009 17:32:04 -0500
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In-Reply-To: Message from Tassilo Horn <tassilo@member.fsf.org>
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To: Tassilo Horn <tassilo@member.fsf.org>
Cc: emacs-orgmode@gnu.org

Tassilo Horn <tassilo@member.fsf.org> wrote:

> Manish <mailtomanish.sharma@gmail.com> writes:
> 
> >> I am having trouble with something pretty basic. I am trying to setup
> >> a recurring deadline on the last day of every month. However, when I
> >> set it as <2009-02-28 +1m>, the next deadline shows up at 2009-03-28,
> >> rather than 31st March.
> >>
> >> I don't use appt/diary. Is there a way to do this in org-mode?
> >
> > Currently not possible to the best of my knowledge.  IMHO, including
> > via diary seems to be a reasonable workaround.
> 
> I was curious how to get that done, but I couldn't find a diary for
> "each last day of a month" in diary, too.  "Each second thursday in a
> month" is on emacswiki, but all those complex dates I found are wired to
> a specific day of the week...
> 

"Bah, how hard can that be?" - famous last words, now eaten (I did choke
on them along the way) ...

Here's my attempt (tested *very* lightly):

&%%(let ((lastday (calendar-last-day-of-month (calendar-extract-month date)
                                              (calendar-extract-year date)))
         (day (calendar-extract-day date)))
        (= day lastday))         last day of month