problem with calendar

[Joakim Verona]

Symptoms:

do:
m-x calendar

The cursor doesnt start out on a date.

This means fancy calendar functions like 
(setq today-visible-calendar-hook (quote (calendar-mark-today)))

will break.

heres a backtrace:

Debugger entered--Lisp error: (wrong-type-argument number-or-marker-p nil)
  calendar-date-is-legal-p(nil)
  mark-visible-calendar-date(nil calendar-today-face)
  calendar-mark-today()
  run-hooks(today-visible-calendar-hook)
  byte-code("=83=8c1=8c2!=88=82=8c1=8c3!=88=8c1=87" [today-visible 
run-hooks today-visible-calendar-hook today-invisible-calendar-hook] 2)
  generate-calendar-window(3 2005)
  calendar-basic-setup(nil)
  calendar(nil)
  call-interactively(calendar)


I think this bug was pretty recently introduced.

Ive tried verifying that theres no problem with my diary file and so
on.

theres no symptoms with "emacs --no-init", but thats because the bug
only manifests itself with fancy calendar rendering on.


In GNU Emacs 22.0.50.1 (i686-pc-linux-gnu, GTK+ Version 2.4.14)
 of 2005-03-09 on naru.home
configured using `configure '--with-gtk' '--with-x' '--with-xpm' '--with-jpeg' 
'--with-tiff' '--with-gif' '--with-png' 'CFLAGS=-g''

Important settings:
  value of $LC_ALL: nil
  value of $LC_COLLATE: nil
  value of $LC_CTYPE: nil
  value of $LC_MESSAGES: nil
  value of $LC_MONETARY: nil
  value of $LC_NUMERIC: nil
  value of $LC_TIME: nil
  value of $LANG: en_US.UTF-8
  locale-coding-system: utf-8
  default-enable-multibyte-characters: t

Major mode: Emacs-Lisp

Minor modes in effect:
  auto-compression-mode: t
  display-time-mode: t
  show-paren-mode: t
  erc-truncate-mode: t
  erc-log-mode: t
  erc-bbdb-mode: t
  erc-autoaway-mode: t
  erc-autojoin-mode: t
  erc-button-mode: t
  erc-ring-mode: t
  erc-pcomplete-mode: t
  erc-track-mode: t
  erc-fill-mode: t
  erc-stamp-mode: t
  erc-netsplit-mode: t
  erc-smiley-mode: t
  eldoc-mode: t
  senator-minor-mode: t
  which-function-mode: t
  semantic-decoration-mode: t
  semantic-idle-summary-mode: t
  semantic-idle-scheduler-mode: t
  semantic-stickyfunc-mode: t
  encoded-kbd-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  unify-8859-on-encoding-mode: t
  utf-translate-cjk-mode: t
  line-number-mode: t
  transient-mark-mode: t

Recent input:
c RET ESC O B ESC O 2 A C-x b . e m RET ESC O A ESC 
O B C-s m a r ESC O B ESC O B ESC > C-r c a l e n C-a 
; ; C-x C-s ESC O A ESC O B C-r C-r C-r ESC O A ESC 
O B C-a ; ; C-x C-s ESC x c a l SPC DEL e SPC SPC DEL 
C-a C-k e m a c s SPC b C-a C-k r e p o SPC r SPC e 
m SPC SPC b SPC RET

Recent messages:
Marking diary entries...done
mark-visible-calendar-date: Wrong type argument: number-or-marker-p, nil
Mark saved where search started
Mark set
Mark saved where search started
Wrote /home/joakim/.emacs
Mark saved where search started
Wrote /home/joakim/.emacs
Making completion list... [2 times]
Loading emacsbug...done