Re: [Orgmode] Last workday of the month

[Chris Maier]

Never mind... I think I had something messed up in my initialization
file; they're showing up now.

Chris

On Sat, Oct 30, 2010 at 8:03 PM, Chris Maier
<address@hidden> wrote:
> Where do the functions 'calendar-extract-day',
> 'calendar-extract-month', 'calendar-extract-year', and
> 'calendar-last-day-of-the-month' come from?  I was looking for
> something like those when I wrote my initial implementation, but I
> don't seem to have them (hence the ugliness of the code!)  I'm running
> GNU Emacs 23.2 for Mac OS X.  Searching for these functions using `C-h
> f` turns up nothing for me.
>
> Thanks for the help,
> Chris
>
> On Sat, Oct 30, 2010 at 4:19 PM, Nick Dokos <address@hidden> wrote:
>> Chris Maier <address@hidden> wrote:
>>
>>> I'm trying to come up with a sexp diary entry that shows my payday,
>>> which is the last weekday of the month, in my Org agenda.  I've tried
>>> to adapt the example given in the Emacs manual and this is what I came
>>> up with:
>>>
>>> %%(let ((month (car date))
>>>         (day (cadr date))
>>>         (dayname (calendar-day-of-week date)))
>>>     (or
>>>      ;; months with 31 days
>>>      (and (memq month '(1 3 5 7 8 10 12))
>>>              (or (and (= day 31)
>>>                       (memq dayname '(1 2 3 4 5)))
>>>                  (and (memq day '(29 30))
>>>                       (= dayname 5))))
>>>      ;; months with 30 days
>>>      (and (memq month '(4 6 9 11))
>>>           (or (and (= day 30)
>>>                    (memq dayname '(1 2 3 4 5)))
>>>               (and (memq day '(28 29))
>>>                    (= dayname 5))))
>>>      ;; February (the weird one)
>>>      (and (= month 2)
>>>           (or (and (memq day '(28 29))
>>>                    (memq dayname '(1 2 3 4 5)))
>>>               (and (memq day '(26 27 28))
>>>                    (= dayname 5)))))) Chris' Paycheck Deposited
>>>
>>> It appears to work so far.  However, I'm certain there's got to be a
>>> more concise way of coding this, but I can't seem to find any
>>> pre-existing calendar functions that might help.  Am I missing
>>> something?
>>>
>>
>> This is based on the same idea and example from the manual, but it
>> precalculates what it needs in order to simplify the decision at
>> the end:
>>
>> (let* ((dayname (calendar-day-of-week date))
>>              (day (calendar-extract-day date))
>>              (month (calendar-extract-month date))
>>              (year (calendar-extract-year date))
>>              (lastday (calendar-last-day-of-month month year))
>>              (last-two-days-before-last-day (list (- lastday 2) (- lastday 
>> 1))))
>>           (or (and (= day lastday) (memq dayname '(1 2 3 4 5)))
>>               (and (memq day last-two-days-before-last-day) (= dayname 5)))
>>              )
>>
>> Very lightly tested, so use with caution.
>>
>>> To make this even better, is there some way to consult another file of
>>> diary entries containing all the holidays at my workplace, so the
>>> diary entry would show up on the last weekday of the month that is not
>>> a company holiday?
>>>
>>
>> I'm sure there is - simplest is probably to set a variable in your
>> .emacs with all the holidays - schedule that with org for Dec. 31 :-) -
>> but you are on your own for that. I just don't think it's worth it: at
>> least for me, there are only three holidays during a year that might
>> interfere with that pay schedule.
>>
>> HTH,
>> Nick
>>
>