Bernt Hansen <be...@norang.ca> wrote: > Nick Dokos <nicholas.do...@hp.com> writes: > > > Suvayu Ali <fatkasuvayu+li...@gmail.com> wrote: > > > >> On Mon, 11 Apr 2011 14:55:24 +0200 > >> Niels Giesen <niels.gie...@gmail.com> wrote: > >> > >> > On Mon, Apr 11, 2011 at 1:57 PM, Rainer Stengele > >> > <rainer.steng...@diplan.de> wrote: > >> > > Am 11.04.2011 10:36, schrieb Suvayu Ali: > >> > >> On Mon, 11 Apr 2011 08:52:52 +0200 > >> > >> > >> > >> %%(if (calendar-date-equal date (calendar-current-date)) > >> > >> (diary-sunrise-sunset)) > >> > >> > >> > > Perfect, thanks. > >> > > > >> > > I can find the other functions in calendar.el, > >> > > but where is "date" from? > >> > > > >> > > >> > date is a dynamically bound variable at the time of evaluation. > >> > > >> > >> I have a question I have been meaning to ask for a long time. How does > >> one test sexps with variables like these? I have tried the scratch > >> buffer but it gives errors like "(void-variable date)". I found the only > >> way I could test is to put it on one of the agenda files. > >> > >> Any suggestions? > >> > > > > Bind date explicitly in the scratch buffer and then evaluate: > > > > (setq date '(4 11 2011)) > > Wouldn't a > (let ((date '(4 11 2011))) > <your text sexp goes here>) > > be better so date isn't permanently bound? >
Sure - I tend to do these things in an isolated emacs, so I don't particularly care - I kill it and restart it, since it goes off the rails quite often - but if you use your main emacs, that is definitely a good idea. OTOH, using your main emacs for experiments is probably *not* a good idea anyway :-) Nick
