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 <nicholas.do...@hp.com> wrote: > Chris Maier <christopher.ma...@gmail.com> 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 > _______________________________________________ Emacs-orgmode mailing list Please use `Reply All' to send replies to the list. Emacs-orgmode@gnu.org http://lists.gnu.org/mailman/listinfo/emacs-orgmode
