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Problem using calendar-check-holidays


From: Rüdiger Sonderfeld
Subject: Problem using calendar-check-holidays
Date: Tue, 04 Oct 2011 16:24:42 +0200
User-agent: RoundCube Webmail/0.2.1

Hello,
I'm trying to check whether a certain date is a holiday. I'm using
calendar-check-holidays, but it fails to handle my holiday list.

Here is a simple example to demonstrate the problem

(let ((calendar-holidays '((holiday-fixed 1 1 "New Year")))
      (calendar-debug-sexp t)
      (d (calendar-absolute-from-gregorian '(1 1 2012))))
  (calendar-check-holidays (list d)))

I get the following backtrace

Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p nil)
  holiday-fixed(1 1 "New Year")
  eval((holiday-fixed 1 1 "New Year"))
  calendar-holiday-list()
  calendar-check-holidays((734503))
  (let ((calendar-holidays (quote ((holiday-fixed 1 1 "New Year"))))
(calendar-debug-sexp t) (d (calendar-absolute-from-gregorian (quote (1 1
2012))))) (calendar-check-holidays (list d)))
  eval((let ((calendar-holidays (quote ((holiday-fixed 1 1 "New Year"))))
(calendar-debug-sexp t) (d (calendar-absolute-from-gregorian (quote (1 1
2012))))) (calendar-check-holidays (list d))) nil)
  eval-last-sexp-1(nil)
  eval-last-sexp(nil)
  call-interactively(eval-last-sexp nil nil)

I'm using (emacs-version) => GNU Emacs 24.0.50.1 (x86_64-pc-linux-gnu, GTK+
Version 2.24.4) of 2011-09-26 on dfontaine-laptop, modified by Debian

What am I doing wrong and how to correctly use calendar-check-holidays?

btw. it would be great if one could specify the list of holidays
calendar-check-holidays should use.

Regards,
Rüdiger




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