Re: void variable error in function diary-anniversary

[address@hidden]

I see, thanks. @Nick.

[stardiviner]           <Hack this world!>      GPG key ID: 47C32433
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On Thu, Dec 21, 2017 at 3:50 PM, Nick Dokos <ndokos@gmail.com> wrote:

> stardiviner <numbchild@gmail.com> writes:
>
> > I'm using latest Emacs version from `master` branch.
> >
> > Current version: GNU Emacs 27.0.50 (build 1, x86_64-pc-linux-gnu, GTK+
> > Version 3.22.26) of 2017-12-16
> >
> >
> > And here is the edebug backtrace (check out the FIXME):
> >
> > #+begin_src emacs-lisp
> >
> > (defun diary-anniversary (month day &optional year mark)
> >    "Anniversary diary entry.
> > Entry applies if date is the anniversary of MONTH, DAY, YEAR.
> > The order of the input parameters changes according to
> > `calendar-date-style' (e.g. to DAY MONTH YEAR in the European style).
> >
> > The diary entry can contain `%d' or `%d%s'; the %d will be replaced
> > by the number of years since the MONTH, DAY, YEAR, and the %s will
> > be replaced by the ordinal ending of that number (that is, `st',
> > `nd', `rd' or `th', as appropriate).  The anniversary of February 29
> > is considered to be March 1 in non-leap years.
> >
> > An optional parameter MARK specifies a face or single-character
> > string to use when highlighting the day in the calendar."
> >    (with-no-warnings (defvar date) (defvar entry))
> >    (let* ((ddate (diary-make-date month day year))
> >           (dd (calendar-extract-day ddate))
> >           (mm (calendar-extract-month ddate))
> >           (yy (calendar-extract-year ddate))
> >           (y (calendar-extract-year date)) ; FIXME: here date is void.
> >           (diff (if yy (- y yy) 100)))
> >      (and (= mm 2) (= dd 29) (not (calendar-leap-year-p y))
> >           (setq mm 3
> >                 dd 1))
> >      (and (> diff 0) (calendar-date-equal (list mm dd y) date)
> >           (cons mark (format entry diff (diary-ordinal-suffix diff))))))
> >
> > #+end_src
> >
> > On 12/21/2017 12:09 AM, Stefan Monnier wrote:
> >>> I have:
> >>> ```org
> >>> * test anniversary
> >>> %%(diary-anniversary 12 8 2007)
> >>> ```
> >>> When I execute [M-: (diary-anniversary 12 8 2007) RET], I got error:
> >>> Symbol's value as variable is vodi: date
>
> The calendar and diary modules assume that the symbol 'date' is
> (dynamically) bound to today's date.  So if you want to evaluate a
> function like diary-anniversary by hand (so to speak), you have to do
> something like this (N.B. the (month day year) format for the date):
>
> (setq date '(12 21 2017))
> (12 21 2017)
> (setq entry "foo %d")
> "Test anniversary %d"
> (org-anniversary 2015 12 21)
> (nil . "Test anniversary 2")
>
> --
> Nick
>
>
>