;;; calendar.el --- Calendar functions.
-;;; Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994 Free Software
-;;; Foundation, Inc.
+;; Copyright (C) 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1997
+;; Free Software Foundation, Inc.
;; Author: Edward M. Reingold <reingold@cs.uiuc.edu>
;; Keywords: calendar
-;; Human-Keywords: calendar, Gregorian calendar, Julian calendar,
-;; Hebrew calendar, Islamic calendar, ISO calendar, Julian day number,
-;; diary, holidays
+;; Human-Keywords: calendar, Gregorian calendar, diary, holidays
;; This file is part of GNU Emacs.
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to
-;; the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+;; along with GNU Emacs; see the file COPYING. If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
;;; Commentary:
-;; This collection of functions implements a calendar window. It
-;; generates a calendar for the current month, together with the previous
-;; and coming months, or for any other three-month period. The calendar
-;; can be scrolled forward and backward in the window to show months in
-;; the past or future; the cursor can move forward and backward by days,
-;; weeks, or months, making it possible, for instance, to jump to the
-;; date a specified number of days, weeks, or months from the date under
-;; the cursor. The user can display a list of holidays and other notable
-;; days for the period shown; the notable days can be marked on the
-;; calendar, if desired. The user can also specify that dates having
-;; corresponding diary entries (in a file that the user specifies) be
-;; marked; the diary entries for any date can be viewed in a separate
-;; window. The diary and the notable days can be viewed independently of
-;; the calendar. Dates can be translated from the (usual) Gregorian
-;; calendar to the day of the year/days remaining in year, to the ISO
-;; commercial calendar, to the Julian (old style) calendar, to the Hebrew
-;; calendar, to the Islamic calendar, to the French Revolutionary calendar,
-;; to the Mayan calendar, and to the astronomical (Julian) day number.
-;; When floating point is available, times of sunrise/sunset can be displayed,
-;; as can the phases of the moon. Appointment notification for diary entries
-;; is available.
+;; This collection of functions implements a calendar window. It generates a
+;; calendar for the current month, together with the previous and coming
+;; months, or for any other three-month period. The calendar can be scrolled
+;; forward and backward in the window to show months in the past or future;
+;; the cursor can move forward and backward by days, weeks, or months, making
+;; it possible, for instance, to jump to the date a specified number of days,
+;; weeks, or months from the date under the cursor. The user can display a
+;; list of holidays and other notable days for the period shown; the notable
+;; days can be marked on the calendar, if desired. The user can also specify
+;; that dates having corresponding diary entries (in a file that the user
+;; specifies) be marked; the diary entries for any date can be viewed in a
+;; separate window. The diary and the notable days can be viewed
+;; independently of the calendar. Dates can be translated from the (usual)
+;; Gregorian calendar to the day of the year/days remaining in year, to the
+;; ISO commercial calendar, to the Julian (old style) calendar, to the Hebrew
+;; calendar, to the Islamic calendar, to the French Revolutionary calendar, to
+;; the Mayan calendar, to the Chinese calendar, to the Coptic calendar, to the
+;; Ethiopic calendar, and to the astronomical (Julian) day number. When
+;; floating point is available, times of sunrise/sunset can be displayed, as
+;; can the phases of the moon. Appointment notification for diary entries is
+;; available. Calendar printing via LaTeX is available.
;; The following files are part of the calendar/diary code:
+;; appt.el Appointment notification
+;; cal-china.el Chinese calendar
+;; cal-coptic.el Coptic/Ethiopic calendars
+;; cal-dst.el Daylight savings time rules
+;; cal-hebrew.el Hebrew calendar
+;; cal-islam.el Islamic calendar
+;; cal-iso.el ISO calendar
+;; cal-julian.el Julian/astronomical calendars
+;; cal-mayan.el Mayan calendars
;; cal-menu.el Menu support
-;; diary.el, diary-ins.el Diary functions
+;; cal-move.el Movement in the calendar
+;; cal-persia.el Persian calendar
+;; cal-tex.el Calendars in LaTeX
+;; cal-x.el X-windows dedicated frame functions
+;; diary-lib.el Diary functions
;; holidays.el Holiday functions
-;; cal-french.el French Revolutionary calendar
-;; cal-mayan.el Mayan calendars
-;; cal-dst.el Daylight savings time rules
-;; solar.el Sunrise/sunset, equinoxes/solstices
;; lunar.el Phases of the moon
-;; appt.el Appointment notification
-
-;; Comments, corrections, and improvements should be sent to
-;; Edward M. Reingold Department of Computer Science
-;; (217) 333-6733 University of Illinois at Urbana-Champaign
-;; reingold@cs.uiuc.edu 1304 West Springfield Avenue
-;; Urbana, Illinois 61801
-
-;; GNU Emacs users too numerous to list pointed out a variety of problems
-;; with earlier forms of the `infinite' sliding calendar and suggested some
-;; of the features included in this package. Especially significant in this
-;; regard was the suggestion of mark-diary-entries and view-diary-entries,
-;; together ideas for their implementation, by
-;; Michael S. Littman Cognitive Science Research Group
-;; (201) 829-5155 Bell Communications Research
-;; mlittman@wind.bellcore.com 445 South St. Box 1961 (2L-331)
-;; Morristown, NJ 07960
-
-;; The algorithms for the Hebrew calendar are those of the Rambam (Rabbi Moses
-;; Maimonides), from his Mishneh Torah, as implemented by
-;; Nachum Dershowitz Department of Computer Science
-;; (217) 333-4219 University of Illinois at Urbana-Champaign
-;; nachum@cs.uiuc.edu 1304 West Springfield Avenue
-;; Urbana, Illinois 61801
+;; solar.el Sunrise/sunset, equinoxes/solstices
;; Technical details of all the calendrical calculations can be found in
+;; ``Calendrical Calculations'' by Nachum Dershowitz and Edward M. Reingold,
+;; Cambridge University Press (1997).
+;; An earlier version of the technical details appeared in
;; ``Calendrical Calculations'' by Nachum Dershowitz and Edward M. Reingold,
;; Software--Practice and Experience, Volume 20, Number 9 (September, 1990),
;; pages 899-928. ``Calendrical Calculations, Part II: Three Historical
;; reingold@cs.uiuc.edu with the SUBJECT "send-paper-cal" (no quotes) and
;; the message BODY containing your mailing address (snail).
+;; Comments, corrections, and improvements should be sent to
+;; Edward M. Reingold Department of Computer Science
+;; (217) 333-6733 University of Illinois at Urbana-Champaign
+;; reingold@cs.uiuc.edu 1304 West Springfield Avenue
+;; Urbana, Illinois 61801
+
;;; Code:
(defun calendar-version ()
(interactive)
- (message "Version 5.3, January 25, 1994"))
+ (message "Version 6, October 12, 1995"))
+
+(defgroup calendar nil
+ "Calendar and time management support."
+ :group 'applications)
+
+(defgroup diary nil
+ "Emacs diary."
+ :group 'calendar)
+
+(defgroup appt nil
+ "Appointment notification."
+ :group 'calendar)
+
+(defgroup holidays nil
+ "Holidays support in calendar."
+ :group 'calendar
+ :prefix "calendar-"
+ :group 'local)
+
+(defgroup chinese-calendar nil
+ "Chinese calendar support."
+ :group 'calendar)
+
+(defgroup calendar-tex nil
+ "Options for printing calendar with LaTeX."
+ :prefix "cal-tex-"
+ :group 'calendar)
+
+(defgroup calendar-hooks nil
+ "Calendar hooks."
+ :prefix "calendar-"
+ :group 'calendar)
+
;;;###autoload
-(defvar calendar-week-start-day 0
+(defcustom calendar-week-start-day 0
"*The day of the week on which a week in the calendar begins.
-0 means Sunday (default), 1 means Monday, and so on.")
+0 means Sunday (default), 1 means Monday, and so on."
+ :type 'integer
+ :group 'calendar)
+
+;;;###autoload
+(defcustom calendar-offset 0
+ "*The offset of the principal month from the center of the calendar window.
+0 means the principal month is in the center (default), -1 means on the left,
++1 means on the right. Larger (or smaller) values push the principal month off
+the screen."
+ :type 'integer
+ :group 'calendar)
;;;###autoload
-(defvar view-diary-entries-initially nil
+(defcustom view-diary-entries-initially nil
"*Non-nil means display current date's diary entries on entry.
The diary is displayed in another window when the calendar is first displayed,
if the current date is visible. The number of days of diary entries displayed
-is governed by the variable `number-of-diary-entries'.")
+is governed by the variable `number-of-diary-entries'."
+ :type 'boolean
+ :group 'diary)
;;;###autoload
-(defvar number-of-diary-entries 1
+(defcustom number-of-diary-entries 1
"*Specifies how many days of diary entries are to be displayed initially.
This variable affects the diary display when the command M-x diary is used,
or if the value of the variable `view-diary-entries-initially' is t. For
This variable does not affect the diary display with the `d' command
from the calendar; in that case, the prefix argument controls the
-number of days of diary entries displayed.")
+number of days of diary entries displayed."
+ :type '(choice (integer :tag "Entries")
+ (vector :value [0 0 0 0 0 0 0]
+ (integer :tag "Sunday")
+ (integer :tag "Monday")
+ (integer :tag "Tuesday")
+ (integer :tag "Wednesday")
+ (integer :tag "Thursday")
+ (integer :tag "Friday")
+ (integer :tag "Saturday")))
+ :group 'diary)
;;;###autoload
-(defvar mark-diary-entries-in-calendar nil
+(defcustom mark-diary-entries-in-calendar nil
"*Non-nil means mark dates with diary entries, in the calendar window.
-The marking symbol is specified by the variable `diary-entry-marker'.")
+The marking symbol is specified by the variable `diary-entry-marker'."
+ :type 'boolean
+ :group 'diary)
-(defvar diary-entry-marker
+;;;###autoload
+(defcustom calendar-remove-frame-by-deleting nil
+ "*Determine how the calendar mode removes a frame no longer needed.
+If nil, make an icon of the frame. If non-nil, delete the frame."
+ :type 'boolean
+ :group 'view)
+
+(when window-system
+ (add-to-list 'facemenu-unlisted-faces 'diary-face)
+ (defface diary-face
+ '((((class color))
+ (:foreground "red"))
+ (t (:bold t)))
+ "Face for highlighting diary entries."
+ :group 'diary)
+
+ (add-to-list 'facemenu-unlisted-faces 'calendar-today-face)
+ (defface calendar-today-face
+ '((t (:underline t)))
+ "Face for indicating today's date."
+ :group 'diary)
+
+ (add-to-list 'facemenu-unlisted-faces 'holiday-face)
+ (defface holiday-face
+ '((((class color))
+ (:background "pink"))
+ (t (:inverse-video t)))
+ "Face for indicating dates that have holidays."
+ :group 'diary))
+
+(defcustom diary-entry-marker
(if (not window-system)
"+"
- (require 'faces)
- (make-face 'diary-face)
- (if (x-display-color-p)
- (set-face-foreground 'diary-face "red")
- (copy-face 'bold 'diary-face))
'diary-face)
- "*Used to mark dates that have diary entries.
-Can be either a single-character string or a face.")
+ "*How to mark dates that have diary entries.
+The value can be either a single-character string or a face."
+ :type '(choice string face)
+ :group 'diary)
-(defvar calendar-today-marker
+(defcustom calendar-today-marker
(if (not window-system)
"="
- (require 'faces)
- (make-face 'calendar-today-face)
- (set-face-underline-p 'calendar-today-face t)
'calendar-today-face)
- "*Used to mark today's date.
-Can be either a single-character string or a face.")
-
-(defvar calendar-holiday-marker
+ "*How to mark today's date in the calendar.
+The value can be either a single-character string or a face.
+Marking today's date is done only if you set up `today-visible-calendar-hook'
+to request that."
+ :type '(choice string face)
+ :group 'calendar)
+
+(defcustom calendar-holiday-marker
(if (not window-system)
"*"
- (require 'faces)
- (make-face 'holiday-face)
- (if (x-display-color-p)
- (set-face-background 'holiday-face "pink")
- (set-face-background 'holiday-face "black")
- (set-face-foreground 'holiday-face "white"))
'holiday-face)
- "*Used to mark notable dates in the calendar.
-Can be either a single-character string or a face.")
+ "*How to mark notable dates in the calendar.
+The value can be either a single-character string or a face."
+ :type '(choice string face)
+ :group 'calendar)
;;;###autoload
-(defvar view-calendar-holidays-initially nil
+(defcustom view-calendar-holidays-initially nil
"*Non-nil means display holidays for current three month period on entry.
The holidays are displayed in another window when the calendar is first
-displayed.")
+displayed."
+ :type 'boolean
+ :group 'holidays)
;;;###autoload
-(defvar mark-holidays-in-calendar nil
+(defcustom mark-holidays-in-calendar nil
"*Non-nil means mark dates of holidays in the calendar window.
-The marking symbol is specified by the variable `calendar-holiday-marker'.")
+The marking symbol is specified by the variable `calendar-holiday-marker'."
+ :type 'boolean
+ :group 'holidays)
;;;###autoload
-(defvar all-hebrew-calendar-holidays nil
+(defcustom all-hebrew-calendar-holidays nil
"*If nil, show only major holidays from the Hebrew calendar.
This means only those Jewish holidays that appear on secular calendars.
-If t, show all the holidays that would appear in a complete Hebrew calendar.")
+If t, show all the holidays that would appear in a complete Hebrew calendar."
+ :type 'boolean
+ :group 'holidays)
;;;###autoload
-(defvar all-christian-calendar-holidays nil
+(defcustom all-christian-calendar-holidays nil
"*If nil, show only major holidays from the Christian calendar.
This means only those Christian holidays that appear on secular calendars.
If t, show all the holidays that would appear in a complete Christian
-calendar.")
+calendar."
+ :type 'boolean
+ :group 'holidays)
;;;###autoload
-(defvar all-islamic-calendar-holidays nil
+(defcustom all-islamic-calendar-holidays nil
"*If nil, show only major holidays from the Islamic calendar.
This means only those Islamic holidays that appear on secular calendars.
If t, show all the holidays that would appear in a complete Islamic
-calendar.")
+calendar."
+ :type 'boolean
+ :group 'holidays)
;;;###autoload
-(defvar calendar-load-hook nil
+(defcustom calendar-load-hook nil
"*List of functions to be called after the calendar is first loaded.
-This is the place to add key bindings to `calendar-mode-map'.")
+This is the place to add key bindings to `calendar-mode-map'."
+ :type 'hook
+ :group 'calendar-hooks)
;;;###autoload
-(defvar initial-calendar-window-hook nil
+(defcustom initial-calendar-window-hook nil
"*List of functions to be called when the calendar window is first opened.
The functions invoked are called after the calendar window is opened, but
once opened is never called again. Leaving the calendar with the `q' command
-and reentering it will cause these functions to be called again.")
+and reentering it will cause these functions to be called again."
+ :type 'hook
+ :group 'calendar-hooks)
;;;###autoload
-(defvar today-visible-calendar-hook nil
+(defcustom today-visible-calendar-hook nil
"*List of functions called whenever the current date is visible.
This can be used, for example, to replace today's date with asterisks; a
function `calendar-star-date' is included for this purpose:
Other than the use of the provided functions, the changing of any
characters in the calendar buffer by the hooks may cause the failure of the
-functions that move by days and weeks.")
+functions that move by days and weeks."
+ :type 'hook
+ :group 'calendar-hooks)
;;;###autoload
-(defvar today-invisible-calendar-hook nil
+(defcustom today-invisible-calendar-hook nil
"*List of functions called whenever the current date is not visible.
The corresponding variable `today-visible-calendar-hook' is the list of
Other than the use of the provided functions, the changing of any
characters in the calendar buffer by the hooks may cause the failure of the
-functions that move by days and weeks.")
+functions that move by days and weeks."
+ :type 'hook
+ :group 'calendar-hooks)
;;;###autoload
-(defvar diary-file "~/diary"
+(defcustom calendar-move-hook nil
+ "*List of functions called whenever the cursor moves in the calendar.
+
+For example,
+
+ (add-hook 'calendar-move-hook (lambda () (view-diary-entries 1)))
+
+redisplays the diary for whatever date the cursor is moved to."
+ :type 'hook
+ :group 'calendar-hooks)
+
+;;;###autoload
+(defcustom diary-file "~/diary"
"*Name of the file in which one's personal diary of dates is kept.
The file's entries are lines in any of the forms
10, 1990. Other functions available are `diary-float', `diary-anniversary',
`diary-cyclic', `diary-day-of-year', `diary-iso-date', `diary-french-date',
`diary-hebrew-date', `diary-islamic-date', `diary-mayan-date',
-`diary-yahrzeit', `diary-sunrise-sunset', `diary-phases-of-moon',
-`diary-parasha', `diary-omer', `diary-rosh-hodesh', and
-`diary-sabbath-candles'. See the documentation for the function
+`diary-chinese-date', `diary-coptic-date', `diary-ethiopic-date',
+`diary-persian-date', `diary-yahrzeit', `diary-sunrise-sunset',
+`diary-phases-of-moon', `diary-parasha', `diary-omer', `diary-rosh-hodesh',
+and `diary-sabbath-candles'. See the documentation for the function
`list-sexp-diary-entries' for more details.
Diary entries based on the Hebrew and/or the Islamic calendar are also
for these functions for details.
Diary files can contain directives to include the contents of other files; for
-details, see the documentation for the variable `list-diary-entries-hook'.")
+details, see the documentation for the variable `list-diary-entries-hook'."
+ :type 'file
+ :group 'diary)
;;;###autoload
-(defvar diary-nonmarking-symbol "&"
- "*Symbol indicating that a diary entry is not to be marked in the calendar.")
+(defcustom diary-nonmarking-symbol "&"
+ "*Symbol indicating that a diary entry is not to be marked in the calendar."
+ :type 'string
+ :group 'diary)
;;;###autoload
-(defvar hebrew-diary-entry-symbol "H"
- "*Symbol indicating a diary entry according to the Hebrew calendar.")
+(defcustom hebrew-diary-entry-symbol "H"
+ "*Symbol indicating a diary entry according to the Hebrew calendar."
+ :type 'string
+ :group 'diary)
;;;###autoload
-(defvar islamic-diary-entry-symbol "I"
- "*Symbol indicating a diary entry according to the Islamic calendar.")
+(defcustom islamic-diary-entry-symbol "I"
+ "*Symbol indicating a diary entry according to the Islamic calendar."
+ :type 'string
+ :group 'diary)
;;;###autoload
-(defvar diary-include-string "#include"
+(defcustom diary-include-string "#include"
"*The string indicating inclusion of another file of diary entries.
-See the documentation for the function `include-other-diary-files'.")
+See the documentation for the function `include-other-diary-files'."
+ :type 'string
+ :group 'diary)
;;;###autoload
-(defvar sexp-diary-entry-symbol "%%"
+(defcustom sexp-diary-entry-symbol "%%"
"*The string used to indicate a sexp diary entry in diary-file.
-See the documentation for the function `list-sexp-diary-entries'.")
+See the documentation for the function `list-sexp-diary-entries'."
+ :type 'string
+ :group 'diary)
;;;###autoload
-(defvar abbreviated-calendar-year t
+(defcustom abbreviated-calendar-year t
"*Interpret a two-digit year DD in a diary entry as either 19DD or 20DD.
For the Gregorian calendar; similarly for the Hebrew and Islamic calendars.
-If this variable is nil, years must be written in full.")
+If this variable is nil, years must be written in full."
+ :type 'boolean
+ :group 'diary)
;;;###autoload
-(defvar european-calendar-style nil
+(defcustom european-calendar-style nil
"*Use the European style of dates in the diary and in any displays.
If this variable is t, a date 1/2/1990 would be interpreted as February 1,
1990. The accepted European date styles are
DAYNAME
Names can be capitalized or not, written in full, or abbreviated to three
-characters with or without a period.")
+characters with or without a period."
+ :type 'boolean
+ :group 'diary)
;;;###autoload
-(defvar american-date-diary-pattern
+(defcustom american-date-diary-pattern
'((month "/" day "[^/0-9]")
(month "/" day "/" year "[^0-9]")
(monthname " *" day "[^,0-9]")
(monthname " *" day ", *" year "[^0-9]")
(dayname "\\W"))
"*List of pseudo-patterns describing the American patterns of date used.
-See the documentation of `diary-date-forms' for an explanation.")
+See the documentation of `diary-date-forms' for an explanation."
+ :type '(repeat (choice (cons :tag "Backup"
+ :value (backup . nil)
+ (const backup)
+ (repeat (list :inline t :format "%v"
+ (symbol :tag "Keyword")
+ (choice symbol regexp))))
+ (repeat (list :inline t :format "%v"
+ (symbol :tag "Keyword")
+ (choice symbol regexp)))))
+ :group 'diary)
;;;###autoload
-(defvar european-date-diary-pattern
+(defcustom european-date-diary-pattern
'((day "/" month "[^/0-9]")
(day "/" month "/" year "[^0-9]")
- (backup day " *" monthname "\\W+\\<[^*0-9]")
+ (backup day " *" monthname "\\W+\\<\\([^*0-9]\\|\\([0-9]+[:aApP]\\)\\)")
(day " *" monthname " *" year "[^0-9]")
(dayname "\\W"))
"*List of pseudo-patterns describing the European patterns of date used.
-See the documentation of `diary-date-forms' for an explanation.")
-
-(defvar diary-date-forms
+See the documentation of `diary-date-forms' for an explanation."
+ :type '(repeat (choice (cons :tag "Backup"
+ :value (backup . nil)
+ (const backup)
+ (repeat (list :inline t :format "%v"
+ (symbol :tag "Keyword")
+ (choice symbol regexp))))
+ (repeat (list :inline t :format "%v"
+ (symbol :tag "Keyword")
+ (choice symbol regexp)))))
+ :group 'diary)
+
+(defcustom diary-date-forms
(if european-calendar-style
european-date-diary-pattern
american-date-diary-pattern)
diary entry itself, the first element of the pattern MUST be `backup'. This
directive causes the date recognizer to back up to the beginning of the
current word of the diary entry, so in no case can the pattern match more than
-a portion of the first word of the diary entry.")
+a portion of the first word of the diary entry."
+ :type '(repeat (choice (cons :tag "Backup"
+ :value (backup . nil)
+ (const backup)
+ (repeat (list :inline t :format "%v"
+ (symbol :tag "Keyword")
+ (choice symbol regexp))))
+ (repeat (list :inline t :format "%v"
+ (symbol :tag "Keyword")
+ (choice symbol regexp)))))
+ :group 'diary)
;;;###autoload
-(defvar european-calendar-display-form
+(defcustom european-calendar-display-form
'((if dayname (concat dayname ", ")) day " " monthname " " year)
"*Pseudo-pattern governing the way a date appears in the European style.
-See the documentation of calendar-date-display-form for an explanation.")
+See the documentation of calendar-date-display-form for an explanation."
+ :type 'sexp
+ :group 'calendar)
;;;###autoload
-(defvar american-calendar-display-form
+(defcustom american-calendar-display-form
'((if dayname (concat dayname ", ")) monthname " " day ", " year)
"*Pseudo-pattern governing the way a date appears in the American style.
-See the documentation of `calendar-date-display-form' for an explanation.")
+See the documentation of `calendar-date-display-form' for an explanation."
+ :type 'sexp
+ :group 'calendar)
-(defvar calendar-date-display-form
+(defcustom calendar-date-display-form
(if european-calendar-style
european-calendar-display-form
american-calendar-display-form)
would give the usual American style in fixed-length fields.
-See the documentation of the function `calendar-date-string'.")
+See the documentation of the function `calendar-date-string'."
+ :type 'sexp
+ :group 'calendar)
(defun european-calendar ()
"Set the interpretation and display of dates to the European style."
(update-calendar-mode-line))
;;;###autoload
-(defvar print-diary-entries-hook 'lpr-buffer
+(defcustom print-diary-entries-hook 'lpr-buffer
"*List of functions called after a temporary diary buffer is prepared.
The buffer shows only the diary entries currently visible in the diary
buffer. The default just does the printing. Other uses might include, for
example, rearranging the lines into order by day and time, saving the buffer
-instead of deleting it, or changing the function used to do the printing.")
+instead of deleting it, or changing the function used to do the printing."
+ :type 'hook
+ :group 'diary)
;;;###autoload
-(defvar list-diary-entries-hook nil
+(defcustom list-diary-entries-hook nil
"*List of functions called after diary file is culled for relevant entries.
It is to be used for diary entries that are not found in the diary file.
in your `.emacs' file to cause the fancy diary buffer to be displayed with
diary entries from various included files, each day's entries sorted into
-lexicographic order.")
+lexicographic order."
+ :type 'hook
+ :group 'diary)
;;;###autoload
-(defvar diary-hook nil
+(defcustom diary-hook nil
"*List of functions called after the display of the diary.
-Can be used for appointment notification.")
+Can be used for appointment notification."
+ :type 'hook
+ :group 'diary)
;;;###autoload
-(defvar diary-display-hook nil
+(defcustom diary-display-hook nil
"*List of functions that handle the display of the diary.
If nil (the default), `simple-diary-display' is used. Use `ignore' for no
diary display.
variable `holidays-in-diary-buffer' is set to nil. Ordinarily, the fancy
diary buffer will not show days for which there are no diary entries, even
if that day is a holiday; if you want such days to be shown in the fancy
-diary buffer, set the variable `diary-list-include-blanks' to t.")
+diary buffer, set the variable `diary-list-include-blanks' to t."
+ :type 'hook
+ :group 'diary)
;;;###autoload
-(defvar nongregorian-diary-listing-hook nil
+(defcustom nongregorian-diary-listing-hook nil
"*List of functions called for listing diary file and included files.
As the files are processed for diary entries, these functions are used to cull
relevant entries. You can use either or both of `list-hebrew-diary-entries'
and `list-islamic-diary-entries'. The documentation for these functions
-describes the style of such diary entries.")
+describes the style of such diary entries."
+ :type 'hook
+ :group 'diary)
;;;###autoload
-(defvar mark-diary-entries-hook nil
+(defcustom mark-diary-entries-hook nil
"*List of functions called after marking diary entries in the calendar.
A function `mark-included-diary-files' is also provided for use as the
obeyed. You can change the \"#include\" to some other string by changing the
variable `diary-include-string'. When you use `mark-included-diary-files' as
part of the mark-diary-entries-hook, you will probably also want to use the
-function `include-other-diary-files' as part of `list-diary-entries-hook'.")
+function `include-other-diary-files' as part of `list-diary-entries-hook'."
+ :type 'hook
+ :group 'diary)
;;;###autoload
-(defvar nongregorian-diary-marking-hook nil
+(defcustom nongregorian-diary-marking-hook nil
"*List of functions called for marking diary file and included files.
As the files are processed for diary entries, these functions are used to cull
relevant entries. You can use either or both of `mark-hebrew-diary-entries'
and `mark-islamic-diary-entries'. The documentation for these functions
-describes the style of such diary entries.")
+describes the style of such diary entries."
+ :type 'hook
+ :group 'diary)
;;;###autoload
-(defvar diary-list-include-blanks nil
+(defcustom diary-list-include-blanks nil
"*If nil, do not include days with no diary entry in the list of diary entries.
-Such days will then not be shown in the the fancy diary buffer, even if they
-are holidays.")
+Such days will then not be shown in the fancy diary buffer, even if they
+are holidays."
+ :type 'boolean
+ :group 'diary)
;;;###autoload
-(defvar holidays-in-diary-buffer t
+(defcustom holidays-in-diary-buffer t
"*Non-nil means include holidays in the diary display.
The holidays appear in the mode line of the diary buffer, or in the
fancy diary buffer next to the date. This slows down the diary functions
-somewhat; setting it to nil makes the diary display faster.")
+somewhat; setting it to nil makes the diary display faster."
+ :type 'boolean
+ :group 'holidays)
(defvar calendar-mark-ring nil)
;;;###autoload
(put 'general-holidays 'risky-local-variable t)
;;;###autoload
-(defvar general-holidays
+(defcustom general-holidays
'((holiday-fixed 1 1 "New Year's Day")
(holiday-float 1 1 3 "Martin Luther King Day")
- (holiday-fixed 2 2 "Ground Hog Day")
+ (holiday-fixed 2 2 "Groundhog Day")
(holiday-fixed 2 14 "Valentine's Day")
(holiday-float 2 1 3 "President's Day")
(holiday-fixed 3 17 "St. Patrick's Day")
- (holiday-fixed 4 1 "April Fool's Day")
+ (holiday-fixed 4 1 "April Fools' Day")
(holiday-float 5 0 2 "Mother's Day")
(holiday-float 5 1 -1 "Memorial Day")
(holiday-fixed 6 14 "Flag Day")
(holiday-fixed 11 11 "Veteran's Day")
(holiday-float 11 4 4 "Thanksgiving"))
"*General holidays. Default value is for the United States.
-See the documentation for `calendar-holidays' for details.")
+See the documentation for `calendar-holidays' for details."
+ :type 'sexp
+ :group 'holidays)
+
+;;;###autoload
+(put 'oriental-holidays 'risky-local-variable t)
+;;;###autoload
+(defcustom oriental-holidays
+ '((if (fboundp 'atan)
+ (holiday-chinese-new-year)))
+ "*Oriental holidays.
+See the documentation for `calendar-holidays' for details."
+ :type 'sexp
+ :group 'holidays)
;;;###autoload
(put 'local-holidays 'risky-local-variable t)
;;;###autoload
-(defvar local-holidays nil
+(defcustom local-holidays nil
"*Local holidays.
-See the documentation for `calendar-holidays' for details.")
+See the documentation for `calendar-holidays' for details."
+ :type 'sexp
+ :group 'holidays)
;;;###autoload
(put 'other-holidays 'risky-local-variable t)
;;;###autoload
-(defvar other-holidays nil
+(defcustom other-holidays nil
"*User defined holidays.
-See the documentation for `calendar-holidays' for details.")
+See the documentation for `calendar-holidays' for details."
+ :type 'sexp
+ :group 'holidays)
;;;###autoload
(put 'hebrew-holidays-1 'risky-local-variable t)
;;;###autoload
(put 'hebrew-holidays 'risky-local-variable t)
;;;###autoload
-(defvar hebrew-holidays (append hebrew-holidays-1 hebrew-holidays-2
+(defcustom hebrew-holidays (append hebrew-holidays-1 hebrew-holidays-2
hebrew-holidays-3 hebrew-holidays-4)
"*Jewish holidays.
-See the documentation for `calendar-holidays' for details.")
+See the documentation for `calendar-holidays' for details."
+ :type 'sexp
+ :group 'holidays)
;;;###autoload
(put 'christian-holidays 'risky-local-variable t)
;;;###autoload
-(defvar christian-holidays
+(defcustom christian-holidays
'((if all-christian-calendar-holidays
(holiday-fixed 1 6 "Epiphany"))
(holiday-easter-etc)
(if all-christian-calendar-holidays
(holiday-julian 12 25 "Eastern Orthodox Christmas")))
"*Christian holidays.
-See the documentation for `calendar-holidays' for details.")
+See the documentation for `calendar-holidays' for details."
+ :type 'sexp
+ :group 'holidays)
;;;###autoload
(put 'islamic-holidays 'risky-local-variable t)
;;;###autoload
-(defvar islamic-holidays
+(defcustom islamic-holidays
'((holiday-islamic
1 1
(format "Islamic New Year %d"
(if all-islamic-calendar-holidays
(holiday-islamic 12 10 "Id-al-Adha")))
"*Islamic holidays.
-See the documentation for `calendar-holidays' for details.")
+See the documentation for `calendar-holidays' for details."
+ :type 'sexp
+ :group 'holidays)
;;;###autoload
(put 'solar-holidays 'risky-local-variable t)
;;;###autoload
-(defvar solar-holidays
+(defcustom solar-holidays
'((if (fboundp 'atan)
(solar-equinoxes-solstices))
(if (progn
'(format "Daylight Savings Time Begins %s"
(if (fboundp 'atan)
(solar-time-string
- (/ calendar-daylight-savings-starts-time
- (float 60))
- date
- 'standard)
+ (/ calendar-daylight-savings-starts-time (float 60))
+ calendar-standard-time-zone-name)
""))))
(funcall
'holiday-sexp
'(format "Daylight Savings Time Ends %s"
(if (fboundp 'atan)
(solar-time-string
- (/ (- calendar-daylight-savings-ends-time
- calendar-daylight-time-offset)
- (float 60))
- date
- 'daylight)
+ (/ calendar-daylight-savings-ends-time (float 60))
+ calendar-daylight-time-zone-name)
""))))
"*Sun-related holidays.
-See the documentation for `calendar-holidays' for details.")
+See the documentation for `calendar-holidays' for details."
+ :type 'sexp
+ :group 'holidays)
;;;###autoload
(put 'calendar-holidays 'risky-local-variable t)
-(defvar calendar-holidays
+(defcustom calendar-holidays
(append general-holidays local-holidays other-holidays
christian-holidays hebrew-holidays islamic-holidays
- solar-holidays)
+ oriental-holidays solar-holidays)
"*List of notable days for the command M-x holidays.
Additional holidays are easy to add to the list, just put them in the list
`other-holidays' in your .emacs file. Similarly, by setting any of
`general-holidays', `local-holidays' `christian-holidays', `hebrew-holidays',
-`islamic-holidays', or `solar-holidays' to nil in your .emacs file, you can
-eliminate unwanted categories of holidays. The intention is that (in the US)
-`local-holidays' be set in site-init.el and `other-holidays' be set by the
-user.
+`islamic-holidays', `oriental-holidays', or `solar-holidays' to nil in your
+.emacs file, you can eliminate unwanted categories of holidays. The intention
+is that (in the US) `local-holidays' be set in site-init.el and
+`other-holidays' be set by the user.
Entries on the list are expressions that return (possibly empty) lists of
items of the form ((month day year) string) of a holiday in the in the
you've written to return a (possibly empty) list of the relevant VISIBLE dates
with descriptive strings such as
- (((2 6 1989) \"New Moon\") ((2 12 1989) \"First Quarter Moon\") ... ).")
+ (((2 6 1989) \"New Moon\") ((2 12 1989) \"First Quarter Moon\") ... )."
+ :type 'sexp
+ :group 'holidays)
(defconst calendar-buffer "*Calendar*"
"Name of the buffer used for the calendar.")
(defconst fancy-diary-buffer "*Fancy Diary Entries*"
"Name of the buffer used for the optional fancy display of the diary.")
+(defconst other-calendars-buffer "*Other Calendars*"
+ "Name of the buffer used for the display of date on other calendars.")
+
+(defconst lunar-phases-buffer "*Phases of Moon*"
+ "Name of the buffer used for the lunar phases.")
+
(defmacro increment-calendar-month (mon yr n)
"Move the variables MON and YR to the month and year by N months.
Forward if N is positive or backward if N is negative."
- (` (let (( macro-y (+ (* (, yr) 12) (, mon) -1 (, n) )))
- (setq (, mon) (1+ (% macro-y 12) ))
- (setq (, yr) (/ macro-y 12)))))
+ `(let ((macro-y (+ (* ,yr 12) ,mon -1 ,n)))
+ (setq ,mon (1+ (% macro-y 12)))
+ (setq ,yr (/ macro-y 12))))
(defmacro calendar-for-loop (var from init to final do &rest body)
"Execute a for loop."
- (` (let (( (, var) (1- (, init)) ))
- (while (>= (, final) (setq (, var) (1+ (, var))))
- (,@ body)))))
+ `(let ((,var (1- ,init)))
+ (while (>= ,final (setq ,var (1+ ,var)))
+ ,@body)))
(defmacro calendar-sum (index initial condition expression)
"For INDEX = INITIAL et seq, as long as CONDITION holds, sum EXPRESSION."
- (` (let (( (, index) (, initial))
- (sum 0))
- (while (, condition)
- (setq sum (+ sum (, expression) ))
- (setq (, index) (1+ (, index))))
- sum)))
-
-;; The following macros are for speed; the code would be clearer if they
-;; were functions, but they can be called thousands of times when
-;; looking up holidays or processing the diary. Here, for example, are the
-;; numbers of calls to calendar/diary/holiday functions in preparing the
+ `(let ((,index ,initial)
+ (sum 0))
+ (while ,condition
+ (setq sum (+ sum ,expression))
+ (setq ,index (1+ ,index)))
+ sum))
+
+;; The following are in-line for speed; they can be called thousands of times
+;; when looking up holidays or processing the diary. Here, for example, are
+;; the numbers of calls to calendar/diary/holiday functions in preparing the
;; fancy diary display, for a moderately complex diary file, with functions
;; used instead of macros. There were a total of 10000 such calls:
;;
;; .
;;
;; The use of these seven macros eliminates the overhead of 92% of the function
-;; calls; it's faster this way. For clarity, the defun form of each is given
-;; in comments after the defmacro form.
+;; calls; it's faster this way.
-(defmacro extract-calendar-month (date)
+(defsubst extract-calendar-month (date)
"Extract the month part of DATE which has the form (month day year)."
- (` (car (, date))))
-;;(defun extract-calendar-month (date)
-;; "Extract the month part of DATE which has the form (month day year)."
-;; (car date))
+ (car date))
-(defmacro extract-calendar-day (date)
+(defsubst extract-calendar-day (date)
"Extract the day part of DATE which has the form (month day year)."
- (` (car (cdr (, date)))))
-;;(defun extract-calendar-day (date)
-;; "Extract the day part of DATE which has the form (month day year)."
-;; (car (cdr date)))
+ (car (cdr date)))
-(defmacro extract-calendar-year (date)
+(defsubst extract-calendar-year (date)
"Extract the year part of DATE which has the form (month day year)."
- (` (car (cdr (cdr (, date))))))
-;;(defun extract-calendar-year (date)
-;; "Extract the year part of DATE which has the form (month day year)."
-;; (car (cdr (cdr date))))
+ (car (cdr (cdr date))))
-(defmacro calendar-leap-year-p (year)
+(defsubst calendar-leap-year-p (year)
"Returns t if YEAR is a Gregorian leap year."
- (` (and
- (zerop (% (, year) 4))
- (or (not (zerop (% (, year) 100)))
- (zerop (% (, year) 400))))))
-;;(defun calendar-leap-year-p (year)
-;; "Returns t if YEAR is a Gregorian leap year."
-;; (and
-;; (zerop (% year 4))
-;; (or ((not (zerop (% year 100))))
-;; (zerop (% year 400)))))
-;;
+ (and (zerop (% year 4))
+ (or (not (zerop (% year 100)))
+ (zerop (% year 400)))))
+
;; The foregoing is a bit faster, but not as clear as the following:
;;
-;;(defmacro calendar-leap-year-p (year)
-;; "Returns t if YEAR is a Gregorian leap year."
-;; (` (or
-;; (and (= (% (, year) 4) 0)
-;; (/= (% (, year) 100) 0))
-;; (= (% (, year) 400) 0))))
-;;(defun calendar-leap-year-p (year)
+;;(defsubst calendar-leap-year-p (year)
;; "Returns t if YEAR is a Gregorian leap year."
;; (or
;; (and (= (% year 4) 0)
;; (/= (% year 100) 0))
;; (= (% year 400) 0)))
-(defmacro calendar-last-day-of-month (month year)
+(defsubst calendar-last-day-of-month (month year)
"The last day in MONTH during YEAR."
- (` (if (and
- (= (, month) 2)
- (, (macroexpand (` (calendar-leap-year-p (, year))))))
- 29
- (aref [31 28 31 30 31 30 31 31 30 31 30 31] (1- (, month))))))
-;;(defun calendar-last-day-of-month (month year)
-;; "The last day in MONTH during YEAR."
-;; (if (and (= month 2) (calendar-leap-year-p year))
-;; 29
-;; (aref [31 28 31 30 31 30 31 31 30 31 30 31] (1- month))))
-
-(defmacro calendar-day-number (date)
+ (if (and (= month 2) (calendar-leap-year-p year))
+ 29
+ (aref [31 28 31 30 31 30 31 31 30 31 30 31] (1- month))))
+
+;; An explanation of the calculation can be found in PascAlgorithms by
+;; Edward and Ruth Reingold, Scott-Foresman/Little, Brown, 1988.
+
+(defsubst calendar-day-number (date)
"Return the day number within the year of the date DATE.
For example, (calendar-day-number '(1 1 1987)) returns the value 1,
while (calendar-day-number '(12 31 1980)) returns 366."
-;;
-;; An explanation of the calculation can be found in PascAlgorithms by
-;; Edward and Ruth Reingold, Scott-Foresman/Little, Brown, 1988.
-;;
- (` (let* ((month (, (macroexpand (` (extract-calendar-month (, date))))))
- (day (, (macroexpand (` (extract-calendar-day (, date))))))
- (year (, (macroexpand (` (extract-calendar-year (, date))))))
- (day-of-year (+ day (* 31 (1- month)))))
- (if (> month 2)
- (progn
- (setq day-of-year (- day-of-year (/ (+ 23 (* 4 month)) 10)))
- (if (, (macroexpand (` (calendar-leap-year-p year))))
+ (let* ((month (extract-calendar-month date))
+ (day (extract-calendar-day date))
+ (year (extract-calendar-year date))
+ (day-of-year (+ day (* 31 (1- month)))))
+ (if (> month 2)
+ (progn
+ (setq day-of-year (- day-of-year (/ (+ 23 (* 4 month)) 10)))
+ (if (calendar-leap-year-p year)
(setq day-of-year (1+ day-of-year)))))
- day-of-year)))
-;;(defun calendar-day-number (date)
-;; "Return the day number within the year of the date DATE.
-;;For example, (calendar-day-number '(1 1 1987)) returns the value 1,
-;;while (calendar-day-number '(12 31 1980)) returns 366."
-;; (let* ((month (extract-calendar-month date))
-;; (day (extract-calendar-day date))
-;; (year (extract-calendar-year date))
-;; (day-of-year (+ day (* 31 (1- month)))))
-;; (if (> month 2)
-;; (progn
-;; (setq day-of-year (- day-of-year (/ (+ 23 (* 4 month)) 10)))
-;; (if (calendar-leap-year-p year)
-;; (setq day-of-year (1+ day-of-year)))))
-;; day-of-year))
-
-(defmacro calendar-absolute-from-gregorian (date)
+ day-of-year))
+
+(defsubst calendar-absolute-from-gregorian (date)
"The number of days elapsed between the Gregorian date 12/31/1 BC and DATE.
The Gregorian date Sunday, December 31, 1 BC is imaginary."
- (` (let ((prior-years
- (1- (, (macroexpand (` (extract-calendar-year (, date))))))))
- (+ (, (macroexpand (` (calendar-day-number (, date)))));; Days this year
- (* 365 prior-years);; + Days in prior years
- (/ prior-years 4);; + Julian leap years
- (- (/ prior-years 100));; - century years
- (/ prior-years 400)))));; + Gregorian leap years
-;;(defun calendar-absolute-from-gregorian (date)
-;; "The number of days elapsed between the Gregorian date 12/31/1 BC and DATE.
-;;The Gregorian date Sunday, December 31, 1 BC is imaginary."
-;; (let ((prior-years (1- (extract-calendar-year date))))
-;; (+ (calendar-day-number date);; Days this year
-;; (* 365 prior-years);; + Days in prior years
-;; (/ prior-years 4);; + Julian leap years
-;; (- (/ prior-years 100));; - century years
-;; (/ prior-years 400))));; + Gregorian leap years
+ (let ((prior-years (1- (extract-calendar-year date))))
+ (+ (calendar-day-number date);; Days this year
+ (* 365 prior-years);; + Days in prior years
+ (/ prior-years 4);; + Julian leap years
+ (- (/ prior-years 100));; - century years
+ (/ prior-years 400))));; + Gregorian leap years
+
+(autoload 'calendar-goto-today "cal-move"
+ "Reposition the calendar window so the current date is visible."
+ t)
+
+(autoload 'calendar-forward-month "cal-move"
+ "Move the cursor forward ARG months."
+ t)
+
+(autoload 'calendar-forward-year "cal-move"
+ "Move the cursor forward by ARG years."
+ t)
+
+(autoload 'calendar-backward-month "cal-move"
+ "Move the cursor backward by ARG months."
+ t)
+
+(autoload 'calendar-backward-year "cal-move"
+ "Move the cursor backward ARG years."
+ t)
+
+(autoload 'scroll-calendar-left "cal-move"
+ "Scroll the displayed calendar left by ARG months."
+ t)
+
+(autoload 'scroll-calendar-right "cal-move"
+ "Scroll the displayed calendar window right by ARG months."
+ t)
+
+(autoload 'scroll-calendar-left-three-months "cal-move"
+ "Scroll the displayed calendar window left by 3*ARG months."
+ t)
+
+(autoload 'scroll-calendar-right-three-months "cal-move"
+ "Scroll the displayed calendar window right by 3*ARG months."
+ t)
+
+(autoload 'calendar-cursor-to-nearest-date "cal-move"
+ "Move the cursor to the closest date."
+ t)
+
+(autoload 'calendar-forward-day "cal-move"
+ "Move the cursor forward ARG days."
+ t)
+
+(autoload 'calendar-backward-day "cal-move"
+ "Move the cursor back ARG days."
+ t)
+
+(autoload 'calendar-forward-week "cal-move"
+ "Move the cursor forward ARG weeks."
+ t)
+
+(autoload 'calendar-backward-week "cal-move"
+ "Move the cursor back ARG weeks."
+ t)
+
+(autoload 'calendar-beginning-of-week "cal-move"
+ "Move the cursor back ARG calendar-week-start-day's."
+ t)
+
+(autoload 'calendar-end-of-week "cal-move"
+ "Move the cursor forward ARG calendar-week-start-day+6's."
+ t)
+
+(autoload 'calendar-beginning-of-month "cal-move"
+ "Move the cursor backward ARG month beginnings."
+ t)
+
+(autoload 'calendar-end-of-month "cal-move"
+ "Move the cursor forward ARG month ends."
+ t)
+
+(autoload 'calendar-beginning-of-year "cal-move"
+ "Move the cursor backward ARG year beginnings."
+ t)
+
+(autoload 'calendar-end-of-year "cal-move"
+ "Move the cursor forward ARG year beginnings."
+ t)
+
+(autoload 'calendar-cursor-to-visible-date "cal-move"
+ "Move the cursor to DATE that is on the screen."
+ t)
+
+(autoload 'calendar-goto-date "cal-move"
+ "Move cursor to DATE."
+ t)
+
+(autoload 'calendar-one-frame-setup "cal-x"
+ "Start calendar and display it in a dedicated frame together with the diary.")
+
+(autoload 'calendar-two-frame-setup "cal-x"
+ "Start calendar and diary in separate, dedicated frames.")
+
+;;;###autoload
+(defvar calendar-setup nil
+ "The frame set up of the calendar.
+The choices are `one-frame' (calendar and diary together in one separate,
+dedicated frame), `two-frames' (calendar and diary in separate, dedicated
+frames), `calendar-only' (calendar in a separate, dedicated frame); with
+any other value the current frame is used.")
;;;###autoload
(defun calendar (&optional arg)
+ "Choose between the one frame, two frame, or basic calendar displays.
+The original function `calendar' has been renamed `calendar-basic-setup'."
+ (interactive "P")
+ (cond ((equal calendar-setup 'one-frame) (calendar-one-frame-setup arg))
+ ((equal calendar-setup 'two-frames) (calendar-two-frame-setup arg))
+ ((equal calendar-setup 'calendar-only)
+ (calendar-only-one-frame-setup arg))
+ (t (calendar-basic-setup arg))))
+
+(defun calendar-basic-setup (&optional arg)
"Display a three-month calendar in another window.
The three months appear side by side, with the current month in the middle
surrounded by the previous and next months. The cursor is put on today's date.
The Gregorian calendar is assumed.
After loading the calendar, the hooks given by the variable
-`calendar-load-hook' are run. This the place to add key bindings to the
+`calendar-load-hook' are run. This is the place to add key bindings to the
calendar-mode-map.
After preparing the calendar window initially, the hooks given by the variable
`initial-calendar-window-hook' are run.
The hooks given by the variable `today-visible-calendar-hook' are run
-everytime the calendar window gets scrolled, if the current date is visible
+every time the calendar window gets scrolled, if the current date is visible
in the window. If it is not visible, the hooks given by the variable
`today-invisible-calendar-hook' are run. Thus, for example, setting
`today-visible-calendar-hook' to 'calendar-star-date will cause today's date
(interactive "P")
(set-buffer (get-buffer-create calendar-buffer))
(calendar-mode)
- (setq calendar-window-configuration (current-window-configuration))
- (let* ((completion-ignore-case t)
- (pop-up-windows t)
+ (let* ((pop-up-windows t)
(split-height-threshold 1000)
- (date (calendar-current-date))
- (month
- (if arg
- (cdr (assoc
- (capitalize
- (completing-read
- "Month name: "
- (mapcar 'list (append calendar-month-name-array nil))
- nil t))
- (calendar-make-alist calendar-month-name-array)))
- (extract-calendar-month date)))
- (year
- (if arg
- (calendar-read
- "Year (>0): "
- '(lambda (x) (> x 0))
- (int-to-string (extract-calendar-year date)))
- (extract-calendar-year date))))
+ (date (if arg
+ (calendar-read-date t)
+ (calendar-current-date)))
+ (month (extract-calendar-month date))
+ (year (extract-calendar-year date)))
(pop-to-buffer calendar-buffer)
+ (increment-calendar-month month year (- calendar-offset))
(generate-calendar-window month year)
(if (and view-diary-entries-initially (calendar-date-is-visible-p date))
(view-diary-entries
(list-calendar-holidays)))
(run-hooks 'initial-calendar-window-hook))
-(autoload 'view-diary-entries "diary"
+(autoload 'view-diary-entries "diary-lib"
"Prepare and display a buffer with diary entries.
Searches your diary file for entries that match ARG days starting with
the date indicated by the cursor position in the displayed three-month
t)
(autoload 'calendar-french-date-string "cal-french"
- "String of French Revolutionary date of Gregorian DATE."
+ "String of French Revolutionary date of Gregorian date."
t)
(autoload 'calendar-mayan-date-string "cal-mayan"
- "String of Mayan date of Gregorian DATE."
+ "String of Mayan date of Gregorian date."
t)
(autoload 'calendar-print-mayan-date "cal-mayan"
t)
(autoload 'calendar-next-calendar-round-date "cal-mayan"
- "Move cursor to next instance of Mayan Haab/Tzoklin combination."
+ "Move cursor to next instance of Mayan Haab/Tzolkin combination."
t)
(autoload 'calendar-previous-calendar-round-date "cal-mayan"
- "Move cursor to previous instance of Mayan Haab/Tzoklin combination."
+ "Move cursor to previous instance of Mayan Haab/Tzolkin combination."
+ t)
+
+(autoload 'calendar-goto-chinese-date "cal-china"
+ "Move cursor to Chinese date."
+ t)
+
+(autoload 'calendar-print-chinese-date "cal-china"
+ "Show the Chinese date equivalents of date."
+ t)
+
+(autoload 'calendar-chinese-date-string "cal-china"
+ "String of Chinese date of Gregorian date."
t)
-(autoload 'show-all-diary-entries "diary"
+(autoload 'calendar-absolute-from-astro "cal-julian"
+ "Absolute date of astronomical (Julian) day number D."
+ t )
+
+(autoload 'calendar-astro-from-absolute "cal-julian"
+ "Astronomical (Julian) day number of absolute date D.")
+
+(autoload 'calendar-astro-date-string "cal-julian"
+ "String of astronomical (Julian) day number of Gregorian date."
+ t)
+
+(autoload 'calendar-goto-astro-day-number "cal-julian"
+ "Move cursor to astronomical (Julian) day number."
+ t)
+
+(autoload 'calendar-print-astro-day-number "cal-julian"
+ "Show the astro date equivalents of date."
+ t)
+
+(autoload 'calendar-julian-from-absolute "cal-julian"
+ "Compute the Julian (month day year) corresponding to the absolute DATE.
+The absolute date is the number of days elapsed since the (imaginary)
+Gregorian date Sunday, December 31, 1 BC.")
+
+(autoload 'calendar-goto-julian-date "cal-julian"
+ "Move cursor to Julian DATE; echo Julian date unless NOECHO is t."
+ t)
+
+(autoload 'calendar-print-julian-date "cal-julian"
+ "Show the Julian calendar equivalent of the date under the cursor."
+ t)
+
+(autoload 'calendar-julian-date-string "cal-julian"
+ "String of Julian date of Gregorian DATE.
+Defaults to today's date if DATE is not given.
+Driven by the variable `calendar-date-display-form'.")
+
+(autoload 'calendar-goto-iso-date "cal-iso"
+ "Move cursor to ISO date."
+ t)
+
+(autoload 'calendar-print-iso-date "cal-iso"
+ "Show the ISO date equivalents of date."
+ t)
+
+(autoload 'calendar-iso-date-string "cal-iso"
+ "String of ISO date of Gregorian date."
+ t)
+
+(autoload 'calendar-print-islamic-date "cal-islam"
+ "Show the Islamic date equivalents of date."
+ t)
+
+(autoload 'calendar-islamic-date-string "cal-islam"
+ "String of Islamic date of Gregorian date."
+ t)
+
+(autoload 'calendar-goto-hebrew-date "cal-hebrew"
+ "Move cursor to Hebrew date date."
+ t)
+
+(autoload 'calendar-print-hebrew-date "cal-hebrew"
+ "Show the Hebrew date equivalents of date."
+ t)
+
+(autoload 'calendar-hebrew-date-string "cal-hebrew"
+ "String of Hebrew date of Gregorian date."
+ t)
+
+(autoload 'calendar-goto-coptic-date "cal-coptic"
+ "Move cursor to Coptic date date."
+ t)
+
+(autoload 'calendar-print-coptic-date "cal-coptic"
+ "Show the Coptic date equivalents of date."
+ t)
+
+(autoload 'calendar-coptic-date-string "cal-coptic"
+ "String of Coptic date of Gregorian date."
+ t)
+
+(autoload 'calendar-goto-ethiopic-date "cal-coptic"
+ "Move cursor to Ethiopic date date."
+ t)
+
+(autoload 'calendar-print-ethiopic-date "cal-coptic"
+ "Show the Ethiopic date equivalents of date."
+ t)
+
+(autoload 'calendar-ethiopic-date-string "cal-coptic"
+ "String of Ethiopic date of Gregorian date."
+ t)
+
+(autoload 'calendar-goto-persian-date "cal-persia"
+ "Move cursor to Persian date date."
+ t)
+
+(autoload 'calendar-print-persian-date "cal-persia"
+ "Show the Persian date equivalents of date."
+ t)
+
+(autoload 'calendar-persian-date-string "cal-persia"
+ "String of Persian date of Gregorian date."
+ t)
+
+(autoload 'show-all-diary-entries "diary-lib"
"Show all of the diary entries in the diary file.
This function gets rid of the selective display of the diary file so that
all entries, not just some, are visible. If there is no diary buffer, one
is created."
t)
-(autoload 'mark-diary-entries "diary"
+(autoload 'mark-diary-entries "diary-lib"
"Mark days in the calendar window that have diary entries.
Each entry in diary file visible in the calendar window is marked."
t)
-(autoload 'insert-diary-entry "diary-ins"
+(autoload 'make-diary-entry "diary-lib"
+ "Insert a diary entry STRING which may be NONMARKING in FILE."
+ t)
+
+(autoload 'insert-diary-entry "diary-lib"
"Insert a diary entry for the date indicated by point."
t)
-(autoload 'insert-weekly-diary-entry "diary-ins"
+(autoload 'insert-weekly-diary-entry "diary-lib"
"Insert a weekly diary entry for the day of the week indicated by point."
t)
-(autoload 'insert-monthly-diary-entry "diary-ins"
+(autoload 'insert-monthly-diary-entry "diary-lib"
"Insert a monthly diary entry for the day of the month indicated by point."
t)
-(autoload 'insert-yearly-diary-entry "diary-ins"
+(autoload 'insert-yearly-diary-entry "diary-lib"
"Insert an annual diary entry for the day of the year indicated by point."
t)
-(autoload 'insert-anniversary-diary-entry "diary-ins"
+(autoload 'insert-anniversary-diary-entry "diary-lib"
"Insert an anniversary diary entry for the date indicated by point."
t)
-(autoload 'insert-block-diary-entry "diary-ins"
+(autoload 'insert-block-diary-entry "diary-lib"
"Insert a block diary entry for the dates indicated by point and mark."
t)
-(autoload 'insert-cyclic-diary-entry "diary-ins"
+(autoload 'insert-cyclic-diary-entry "diary-lib"
"Insert a cyclic diary entry starting at the date indicated by point."
t)
-(autoload 'insert-hebrew-diary-entry "diary-ins"
+(autoload 'insert-hebrew-diary-entry "cal-hebrew"
"Insert a diary entry for the Hebrew date corresponding to the date
indicated by point."
t)
-(autoload 'insert-monthly-hebrew-diary-entry "diary-ins"
+(autoload 'insert-monthly-hebrew-diary-entry "cal-hebrew"
"Insert a monthly diary entry for the day of the Hebrew month corresponding
to the date indicated by point."
t)
-(autoload 'insert-yearly-hebrew-diary-entry "diary-ins"
+(autoload 'insert-yearly-hebrew-diary-entry "cal-hebrew"
"Insert an annual diary entry for the day of the Hebrew year corresponding
to the date indicated by point."
t)
-(autoload 'insert-islamic-diary-entry "diary-ins"
+(autoload 'insert-islamic-diary-entry "cal-islam"
"Insert a diary entry for the Islamic date corresponding to the date
indicated by point."
t)
-(autoload 'insert-monthly-islamic-diary-entry "diary-ins"
+(autoload 'insert-monthly-islamic-diary-entry "cal-islam"
"Insert a monthly diary entry for the day of the Islamic month corresponding
to the date indicated by point."
t)
-(autoload 'insert-yearly-islamic-diary-entry "diary-ins"
+(autoload 'insert-yearly-islamic-diary-entry "cal-islam"
"Insert an annual diary entry for the day of the Islamic year corresponding
to the date indicated by point."
t)
holidays are found, nil if not."
t)
+(autoload 'cal-tex-cursor-month "cal-tex"
+ "Make a buffer with LaTeX commands for the month cursor is on.
+Optional prefix argument specifies number of months to be produced.
+Calendar is condensed onto one page.")
+
+(autoload 'cal-tex-cursor-month-landscape "cal-tex"
+ "Make a buffer with LaTeX commands for the month cursor is on.
+Optional prefix argument specifies number of months to be produced.")
+
+(autoload 'cal-tex-cursor-day "cal-tex"
+ "Make a buffer with LaTeX commands for the day cursor is on.")
+
+(autoload 'cal-tex-cursor-week "cal-tex"
+ "Make a buffer with LaTeX commands for a two-page one-week calendar.
+It applies to the week that point is in.
+Optional prefix argument specifies number of weeks.
+Holidays are included if `cal-tex-holidays' is t.")
+
+(autoload 'cal-tex-cursor-week2 "cal-tex"
+ "Make a buffer with LaTeX commands for a two-page one-week calendar.
+It applies to the week that point is in.
+Optional prefix argument specifies number of weeks.
+Holidays are included if `cal-tex-holidays' is t.")
+
+(autoload 'cal-tex-cursor-week-iso "cal-tex"
+ "Make a buffer with LaTeX commands for a one page ISO-style weekly calendar.
+Optional prefix argument specifies number of weeks.
+Diary entries are included if `cal-tex-diary' is t.
+Holidays are included if `cal-tex-holidays' is t.")
+
+(autoload 'cal-tex-cursor-week-monday "cal-tex"
+ "Make a buffer with LaTeX commands for a two-page one-week calendar.
+It applies to the week that point is in, and starts on Monday.
+Optional prefix argument specifies number of weeks.
+Holidays are included if `cal-tex-holidays' is t.")
+
+(autoload 'cal-tex-cursor-filofax-2week "cal-tex"
+ "Two-weeks-at-a-glance Filofax style calendar for week indicated by cursor.
+Optional prefix argument specifies number of weeks.
+Diary entries are included if cal-tex-diary is t.
+Holidays are included if `cal-tex-holidays' is t.")
+
+(autoload 'cal-tex-cursor-filofax-week "cal-tex"
+ "One-week-at-a-glance Filofax style calendar for week indicated by cursor.
+Optional prefix argument specifies number of weeks.
+Weeks start on Monday.
+Diary entries are included if cal-tex-diary is t.
+Holidays are included if `cal-tex-holidays' is t.")
+
+(autoload 'cal-tex-cursor-filofax-daily "cal-tex"
+ "Day-per-page Filofax style calendar for week indicated by cursor.
+Optional prefix argument specifies number of weeks. Weeks start on Monday.
+Diary entries are included if `cal-tex-diary' is t.
+Holidays are included if `cal-tex-holidays' is t.")
+
+(autoload 'cal-tex-cursor-year "cal-tex"
+ "Make a buffer with LaTeX commands for a year's calendar.
+Optional prefix argument specifies number of years.")
+
+(autoload 'cal-tex-cursor-year-landscape "cal-tex"
+ "Make a buffer with LaTeX commands for a year's calendar (landscape).
+Optional prefix argument specifies number of years.")
+
+(autoload 'cal-tex-cursor-filofax-year "cal-tex"
+ "Make a buffer with LaTeX commands for a year's calendar (Filofax).
+Optional prefix argument specifies number of years.")
+
(autoload 'mark-calendar-holidays "holidays"
"Mark notable days in the calendar window."
t)
(goto-char (point-min))
(calendar-insert-indented
(calendar-string-spread
- (list "" (format "%s %d" (calendar-month-name month) year) "") ? 20)
+ (list (format "%s %d" (calendar-month-name month) year)) ? 20)
indent t)
(calendar-insert-indented "" indent);; Go to proper spot
(calendar-for-loop i from 0 to 6 do
- (insert (substring (aref calendar-day-name-array
- (mod (+ calendar-week-start-day i) 7))
- 0 2))
+ (insert (calendar-day-name (mod (+ calendar-week-start-day i) 7)
+ 2 t))
(insert " "))
(calendar-insert-indented "" 0 t);; Force onto following line
(calendar-insert-indented "" indent);; Go to proper spot
;; Put in the days of the month
(calendar-for-loop i from 1 to last do
(insert (format "%2d " i))
- (put-text-property (- (point) 3) (1- (point)) 'mouse-face 'highlight)
+ (put-text-property (- (point) 3) (1- (point))
+ 'mouse-face 'highlight)
(and (zerop (mod (+ i blank-days) 7))
(/= i last)
(calendar-insert-indented "" 0 t) ;; Force onto following line
(defun redraw-calendar ()
"Redraw the calendar display."
(interactive)
- (let ((cursor-date (calendar-cursor-to-date)))
+ (let ((cursor-date (calendar-cursor-to-nearest-date)))
(generate-calendar-window displayed-month displayed-year)
(calendar-cursor-to-visible-date cursor-date)))
-(defvar calendar-debug-sexp nil
- "*Turn debugging on when evaluating a sexp in the diary or holiday list.")
+(defcustom calendar-debug-sexp nil
+ "*Turn debugging on when evaluating a sexp in the diary or holiday list."
+ :type 'boolean
+ :group 'calendar)
(defvar calendar-mode-map nil)
(if calendar-mode-map
(if window-system (require 'cal-menu))
(calendar-for-loop i from 0 to 9 do
(define-key calendar-mode-map (int-to-string i) 'digit-argument))
- ;; kill-region and copy-region-as-kill are omitted from this list
- ;; because they cause an ugly second pane in the Edit menu.
(let ((l (list 'narrow-to-region 'mark-word 'mark-sexp 'mark-paragraph
'mark-defun 'mark-whole-buffer 'mark-page
- 'downcase-region 'upcase-region
- 'capitalize-region 'write-region)))
-
+ 'downcase-region 'upcase-region 'kill-region
+ 'copy-region-as-kill 'capitalize-region 'write-region)))
(while l
(substitute-key-definition (car l) 'calendar-not-implemented
calendar-mode-map global-map)
(define-key calendar-mode-map "\e>" 'calendar-end-of-year)
(define-key calendar-mode-map "\C-@" 'calendar-set-mark)
;; Many people are used to typing C-SPC and getting C-@.
- (define-key calendar-mode-map [?\C-\ ] 'calendar-set-mark)
+ (define-key calendar-mode-map [?\C- ] 'calendar-set-mark)
(define-key calendar-mode-map "\C-x\C-x" 'calendar-exchange-point-and-mark)
(define-key calendar-mode-map "\e=" 'calendar-count-days-region)
(define-key calendar-mode-map "gd" 'calendar-goto-date)
(define-key calendar-mode-map "ga" 'calendar-goto-astro-day-number)
(define-key calendar-mode-map "gh" 'calendar-goto-hebrew-date)
(define-key calendar-mode-map "gi" 'calendar-goto-islamic-date)
+ (define-key calendar-mode-map "gC" 'calendar-goto-chinese-date)
+ (define-key calendar-mode-map "gk" 'calendar-goto-coptic-date)
+ (define-key calendar-mode-map "ge" 'calendar-goto-ethiopic-date)
+ (define-key calendar-mode-map "gp" 'calendar-goto-persian-date)
(define-key calendar-mode-map "gc" 'calendar-goto-iso-date)
(define-key calendar-mode-map "gf" 'calendar-goto-french-date)
(define-key calendar-mode-map "gml" 'calendar-goto-mayan-long-count-date)
(define-key calendar-mode-map "gmnh" 'calendar-next-haab-date)
(define-key calendar-mode-map "gmpt" 'calendar-previous-tzolkin-date)
(define-key calendar-mode-map "gmnt" 'calendar-next-tzolkin-date)
+ (define-key calendar-mode-map "Aa" 'appt-add)
+ (define-key calendar-mode-map "Ad" 'appt-delete)
(define-key calendar-mode-map "S" 'calendar-sunrise-sunset)
(define-key calendar-mode-map "M" 'calendar-phases-of-moon)
(define-key calendar-mode-map " " 'scroll-other-window)
(define-key calendar-mode-map "\C-c\C-l" 'redraw-calendar)
- (define-key calendar-mode-map "." 'calendar-current-month)
+ (define-key calendar-mode-map "." 'calendar-goto-today)
(define-key calendar-mode-map "o" 'calendar-other-month)
(define-key calendar-mode-map "q" 'exit-calendar)
(define-key calendar-mode-map "a" 'list-calendar-holidays)
(define-key calendar-mode-map "u" 'calendar-unmark)
(define-key calendar-mode-map "m" 'mark-diary-entries)
(define-key calendar-mode-map "d" 'view-diary-entries)
+ (define-key calendar-mode-map "D" 'view-other-diary-entries)
(define-key calendar-mode-map "s" 'show-all-diary-entries)
(define-key calendar-mode-map "pd" 'calendar-print-day-of-year)
+ (define-key calendar-mode-map "pC" 'calendar-print-chinese-date)
+ (define-key calendar-mode-map "pk" 'calendar-print-coptic-date)
+ (define-key calendar-mode-map "pe" 'calendar-print-ethiopic-date)
+ (define-key calendar-mode-map "pp" 'calendar-print-persian-date)
(define-key calendar-mode-map "pc" 'calendar-print-iso-date)
(define-key calendar-mode-map "pj" 'calendar-print-julian-date)
(define-key calendar-mode-map "pa" 'calendar-print-astro-day-number)
(define-key calendar-mode-map "pi" 'calendar-print-islamic-date)
(define-key calendar-mode-map "pf" 'calendar-print-french-date)
(define-key calendar-mode-map "pm" 'calendar-print-mayan-date)
+ (define-key calendar-mode-map "po" 'calendar-print-other-dates)
(define-key calendar-mode-map "id" 'insert-diary-entry)
(define-key calendar-mode-map "iw" 'insert-weekly-diary-entry)
(define-key calendar-mode-map "im" 'insert-monthly-diary-entry)
(define-key calendar-mode-map "iid" 'insert-islamic-diary-entry)
(define-key calendar-mode-map "iim" 'insert-monthly-islamic-diary-entry)
(define-key calendar-mode-map "iiy" 'insert-yearly-islamic-diary-entry)
- (define-key calendar-mode-map "?" 'describe-calendar-mode))
+ (define-key calendar-mode-map "?" 'calendar-goto-info-node)
+ (define-key calendar-mode-map "tm" 'cal-tex-cursor-month)
+ (define-key calendar-mode-map "tM" 'cal-tex-cursor-month-landscape)
+ (define-key calendar-mode-map "td" 'cal-tex-cursor-day)
+ (define-key calendar-mode-map "tw1" 'cal-tex-cursor-week)
+ (define-key calendar-mode-map "tw2" 'cal-tex-cursor-week2)
+ (define-key calendar-mode-map "tw3" 'cal-tex-cursor-week-iso)
+ (define-key calendar-mode-map "tw4" 'cal-tex-cursor-week-monday)
+ (define-key calendar-mode-map "tfd" 'cal-tex-cursor-filofax-daily)
+ (define-key calendar-mode-map "tfw" 'cal-tex-cursor-filofax-2week)
+ (define-key calendar-mode-map "tfW" 'cal-tex-cursor-filofax-week)
+ (define-key calendar-mode-map "tfy" 'cal-tex-cursor-filofax-year)
+ (define-key calendar-mode-map "ty" 'cal-tex-cursor-year)
+ (define-key calendar-mode-map "tY" 'cal-tex-cursor-year-landscape))
(defun describe-calendar-mode ()
"Create a help buffer with a brief description of the calendar-mode."
(substitute-command-keys
"\\<calendar-mode-map>\\[describe-mode] from within the calendar")
(substitute-command-keys "\\{calendar-mode-map}")))
+ (save-excursion
+ (set-buffer standard-output)
+ (help-mode))
(print-help-return-message)))
;; Calendar mode is suitable only for specially formatted data.
(list
(substitute-command-keys "\\<calendar-mode-map>\\[scroll-calendar-left]")
"Calendar"
- (substitute-command-keys "\\<calendar-mode-map>\\[describe-calendar-mode] help/\\[calendar-other-month] other/\\[calendar-current-month] today")
+ (substitute-command-keys "\\<calendar-mode-map>\\[calendar-goto-info-node] info/\\[calendar-other-month] other/\\[calendar-goto-today] today")
'(calendar-date-string (calendar-current-date) t)
(substitute-command-keys "\\<calendar-mode-map>\\[scroll-calendar-right]"))
"The mode line of the calendar buffer.")
+(defun calendar-goto-info-node ()
+ "Go to the info node for the calendar."
+ (interactive)
+ (require 'info)
+ (let ((where (save-window-excursion
+ (Info-find-emacs-command-nodes 'calendar))))
+ (if (not where)
+ (error "Couldn't find documentation for the calendar.")
+ (let (same-window-buffer-names)
+ (info))
+ (Info-find-node (car (car where)) (car (cdr (car where)))))))
+
(defun calendar-mode ()
"A major mode for the calendar window.
-The commands for cursor movement are:\\<calendar-mode-map>
-
- \\[calendar-forward-day] one day forward \\[calendar-backward-day] one day backward
- \\[calendar-forward-week] one week forward \\[calendar-backward-week] one week backward
- \\[calendar-forward-month] one month forward \\[calendar-backward-month] one month backward
- \\[calendar-forward-year] one year forward \\[calendar-backward-year] one year backward
- \\[calendar-beginning-of-week] beginning of week \\[calendar-end-of-week] end of week
- \\[calendar-beginning-of-month] beginning of month \\[calendar-end-of-month] end of month
- \\[calendar-beginning-of-year] beginning of year \\[calendar-end-of-year] end of year
-
- \\[calendar-goto-date] go to date
-
- \\[calendar-goto-julian-date] go to Julian date \\[calendar-goto-astro-day-number] go to astronomical (Julian) day number
- \\[calendar-goto-hebrew-date] go to Hebrew date \\[calendar-goto-islamic-date] go to Islamic date
- \\[calendar-goto-iso-date] go to ISO date \\[calendar-goto-french-date] go to French Revolutionary date
-
- \\[calendar-goto-mayan-long-count-date] go to Mayan Long Count date
- \\[calendar-next-haab-date] go to next occurrence of Mayan Haab date
- \\[calendar-previous-haab-date] go to previous occurrence of Mayan Haab date
- \\[calendar-next-tzolkin-date] go to next occurrence of Mayan Tzolkin date
- \\[calendar-previous-tzolkin-date] go to previous occurrence of Mayan Tzolkin date
- \\[calendar-next-calendar-round-date] go to next occurrence of Mayan Calendar Round date
- \\[calendar-previous-calendar-round-date] go to previous occurrence of Mayan Calendar Round date
-
-You can mark a date in the calendar and switch the point and mark:
+For a complete description, type \
+\\<calendar-mode-map>\\[calendar-goto-info-node] from within the calendar.
- \\[calendar-set-mark] mark date \\[calendar-exchange-point-and-mark] exchange point and mark
-
-You can determine the number of days (inclusive) between the point and mark by
-
- \\[calendar-count-days-region] count days in the region
-
-The commands for calendar movement are:
-
- \\[scroll-calendar-right] scroll one month right \\[scroll-calendar-left] scroll one month left
- \\[scroll-calendar-right-three-months] scroll 3 months right \\[scroll-calendar-left-three-months] scroll 3 months left
- \\[calendar-current-month] display current month \\[calendar-other-month] display another month
-
-Whenever it makes sense, the above commands take prefix arguments that
-multiply their affect. For convenience, the digit keys and the minus sign
-are bound to digit-argument, so they need not be prefixed with ESC.
-
-If the calendar window somehow becomes corrupted, it can be regenerated with
-
- \\[redraw-calendar] redraw the calendar
-
-The following commands deal with holidays and other notable days:
-
- \\[calendar-cursor-holidays] give holidays for the date specified by the cursor
- \\[mark-calendar-holidays] mark notable days
- \\[calendar-unmark] unmark dates
- \\[list-calendar-holidays] display notable days
-
-The command M-x holidays causes the notable dates for the current month, and
-the preceding and succeeding months, to be displayed, independently of the
-calendar.
-
-The following commands control the diary:
-
- \\[mark-diary-entries] mark diary entries \\[calendar-unmark] unmark dates
- \\[view-diary-entries] display diary entries \\[show-all-diary-entries] show all diary entries
- \\[print-diary-entries] print diary entries
-
-Displaying the diary entries causes the diary entries from the diary file
-\(for the date indicated by the cursor in the calendar window) to be
-displayed in another window. This function takes an integer argument that
-specifies the number of days of calendar entries to be displayed, starting
-with the date indicated by the cursor.
-
-The command \\[print-diary-entries] prints the diary buffer (as it appears)
-on the line printer.
-
-The command M-x diary causes the diary entries for the current date to be
-displayed, independently of the calendar. The number of days of entries is
-governed by number-of-diary-entries.
-
-The format of the entries in the diary file is described in the
-documentation string for the variable `diary-file'.
-
-When diary entries are in view in the window, they can be edited. It is
-important to keep in mind that the buffer displayed contains the entire
-diary file, but with portions of it concealed from view. This means, for
-instance, that the forward-char command can put the cursor at what appears
-to be the end of the line, but what is in reality the middle of some
-concealed line. BE CAREFUL WHEN EDITING THE DIARY ENTRIES! (Inserting
-additional lines or adding/deleting characters in the middle of a visible
-line will not cause problems; watch out for end-of-line, however--it may
-put you at the end of a concealed line far from where the cursor appears to
-be!) BEFORE EDITING THE DIARY IT IS BEST TO DISPLAY THE ENTIRE FILE WITH
-show-all-diary-entries. BE SURE TO WRITE THE FILE BEFORE EXITING FROM THE
-CALENDAR.
-
-The following commands assist in making diary entries:
-
- \\[insert-diary-entry] insert a diary entry for the selected date
- \\[insert-weekly-diary-entry] insert a diary entry for the selected day of the week
- \\[insert-monthly-diary-entry] insert a diary entry for the selected day of the month
- \\[insert-yearly-diary-entry] insert a diary entry for the selected day of the year
- \\[insert-block-diary-entry] insert a diary entry for the block days between point and mark
- \\[insert-anniversary-diary-entry] insert an anniversary diary entry for the selected date
- \\[insert-cyclic-diary-entry] insert a cyclic diary entry
-
-There are corresponding commands to assist in making Hebrew- or Islamic-date
-diary entries:
-
- \\[insert-hebrew-diary-entry] insert a diary entry for the Hebrew date corresponding
- to the selected date
- \\[insert-monthly-hebrew-diary-entry] insert a diary entry for the day of the Hebrew month
- corresponding to the selected day
- \\[insert-yearly-hebrew-diary-entry] insert a diary entry for the day of the Hebrew year
- corresponding to the selected day
- \\[insert-islamic-diary-entry] insert a diary entry for the Islamic date corresponding
- to the selected date
- \\[insert-monthly-islamic-diary-entry] insert a diary entry for the day of the Islamic month
- corresponding to the selected day
- \\[insert-yearly-islamic-diary-entry] insert a diary entry for the day of the Islamic year
- corresponding to the selected day
-
-All of the diary entry commands make nonmarking entries when given a prefix
-argument; with no prefix argument, the diary entries are marking.
-
-The day number in the year and the number of days remaining in the year can be
-determined by
-
- \\[calendar-print-day-of-year] show day number and the number of days remaining in the year
-
-Equivalent dates on the ISO commercial, Julian, Hebrew, Islamic, French
-Revolutionary, and Mayan calendars can be determined by
-
- \\[calendar-print-iso-date] show equivalent date on the ISO commercial calendar
- \\[calendar-print-julian-date] show equivalent date on the Julian calendar
- \\[calendar-print-hebrew-date] show equivalent date on the Hebrew calendar
- \\[calendar-print-islamic-date] show equivalent date on the Islamic calendar
- \\[calendar-print-french-date] show equivalent date on the French Revolutionary calendar
- \\[calendar-print-mayan-date] show equivalent date on the Mayan calendar
-
-The astronomical (Julian) day number of a date is found with
-
- \\[calendar-print-astro-day-number] show equivalent astronomical (Julian) day number
-
-To find the times of sunrise and sunset and lunar phases use
-
- \\[calendar-sunrise-sunset] show times of sunrise and sunset
- \\[calendar-phases-of-moon] show times of quarters of the moon
-
-The times given apply to location `calendar-location-name' at latitude
-`calendar-latitude', longitude `calendar-longitude'; set these variables for
-your location. The following variables are also consulted, and you must set
-them if your system does not initialize them properly: `calendar-time-zone',
-`calendar-daylight-time-offset', `calendar-standard-time-zone-name',
-`calendar-daylight-time-zone-name', `calendar-daylight-savings-starts',
-`calendar-daylight-savings-ends', `calendar-daylight-savings-starts-time',
-`calendar-daylight-savings-ends-time'.
-
-To exit from the calendar use
-
- \\[exit-calendar] exit from calendar
-
-Set `view-diary-entries-initially' to a non-nil value to display
-diary entries for the current date in
-another window when the calendar is first displayed, if the current date is
-visible. The variable `number-of-diary-entries' controls number of days of
-diary entries that to display initially or with the command M-x
-diary. For example, the default value 1 says to display only the current
-day's diary entries. The value 2 says to display both the
-current day's and the next day's entries.
-
-The value can also be a vector such as [0 2 2 2 2 4 1]; this value
-says to display no diary entries on Sunday, the display the entries
-for the current date and the day after on Monday through Thursday,
-display Friday through Monday's entries on Friday, and display only
-Saturday's entries on Saturday.
-
-Set `view-calendar-holidays-initially' to a non-nil value to display
-holidays for the current three month period on entry to the calendar.
-
-Set `mark-diary-entries-in-calendar' to a non-nil value to mark in the
-calendar all the dates that have diary entries. The variable
-`diary-entry-marker' controls how to mark them.
-
-The variable `calendar-load-hook', whose default value is nil, is list of
-functions to be called when the calendar is first loaded.
-
-The variable `initial-calendar-window-hook', whose default value is nil, is
-list of functions to be called when the calendar window is first opened. The
-functions invoked are called after the calendar window is opened, but once
-opened is never called again. Leaving the calendar with the `q' command and
-reentering it will cause these functions to be called again.
-
-The variable `today-visible-calendar-hook', whose default value is nil, is the
-list of functions called after the calendar buffer has been prepared with the
-calendar when the current date is visible in the window. This can be used,
-for example, to replace today's date with asterisks; a function
-calendar-star-date is included for this purpose:
- (setq today-visible-calendar-hook 'calendar-star-date)
-It could also be used to mark the current date; a function is also provided
-for this:
- (setq today-visible-calendar-hook 'calendar-mark-today)
-
-The variable `today-invisible-calendar-hook', whose default value is nil, is
-the list of functions called after the calendar buffer has been prepared with
-the calendar when the current date is not visible in the window.
-
-The variable `diary-display-hook' is the list of functions called after the
-diary buffer is prepared. The default value simply displays the diary file
-using selective-display to conceal irrelevant diary entries. An alternative
-function `fancy-diary-display' is provided that, when used as the
-`diary-display-hook', causes a noneditable buffer to be prepared with a neatly
-organized day-by-day listing of relevant diary entries, together with any
-known holidays. The inclusion of the holidays slows this fancy display of the
-diary; to speed it up, set the variable `holidays-in-diary-buffer' to nil.
-
-The variable `print-diary-entries-hook' is the list of functions called after
-a temporary buffer is prepared with the diary entries currently visible in the
-diary buffer. The default value of this hook adds a heading (composed from
-the diary buffer's mode line), does the printing with the command lpr-buffer,
-and kills the temporary buffer. Other uses might include, for example,
-rearranging the lines into order by day and time.
-
-The Gregorian calendar is assumed."
+\\<calendar-mode-map>\\{calendar-mode-map}"
(kill-all-local-variables)
(setq major-mode 'calendar-mode)
(setq buffer-read-only t)
(setq indent-tabs-mode nil)
(update-calendar-mode-line)
- (make-local-variable 'calendar-window-configuration);; Windows on entry.
+ (if window-system
+ (progn
+ (make-local-hook 'activate-menubar-hook)
+ (add-hook 'activate-menubar-hook 'cal-menu-update nil t)))
(make-local-variable 'calendar-mark-ring)
(make-local-variable 'displayed-month);; Month in middle of window.
(make-local-variable 'displayed-year));; Year in middle of window.
(defun calendar-string-spread (strings char length)
- "Concatenate list of STRINGS separated with copies of CHAR to fill LENGTH
-There must be at least 2 strings. The effect is like mapconcat but the
-separating pieces are as balanced as possible. Each item of STRINGS is
-evaluated before concatenation so it can actually be an expression that
-evaluates to a string. If LENGTH is too short, the STRINGS are just
-concatenated and the result truncated."
+ "Concatenate list of STRINGS separated with copies of CHAR to fill LENGTH.
+The effect is like mapconcat but the separating pieces are as balanced as
+possible. Each item of STRINGS is evaluated before concatenation so it can
+actually be an expression that evaluates to a string. If LENGTH is too short,
+the STRINGS are just concatenated and the result truncated."
;; The algorithm is based on equation (3.25) on page 85 of Concrete
;; Mathematics by Ronald L. Graham, Donald E. Knuth, and Oren Patashnik,
;; Addison-Wesley, Reading, MA, 1989
- (let* ((strings (mapcar 'eval strings))
+ (let* ((strings (mapcar 'eval
+ (if (< (length strings) 2)
+ (append (list "") strings (list ""))
+ strings)))
(n (- length (length (apply 'concat strings))))
(m (1- (length strings)))
(s (car strings))
(calendar-string-spread
calendar-mode-line-format ? (frame-width))))))
+(defun calendar-window-list ()
+ "List of all calendar-related windows."
+ (let ((calendar-buffers (calendar-buffer-list))
+ list)
+ (walk-windows '(lambda (w)
+ (if (memq (window-buffer w) calendar-buffers)
+ (setq list (cons w list))))
+ nil t)
+ list))
+
+(defun calendar-buffer-list ()
+ "List of all calendar-related buffers."
+ (let* ((diary-buffer (get-file-buffer diary-file))
+ (buffers (list "*Yahrzeits*" lunar-phases-buffer holiday-buffer
+ fancy-diary-buffer diary-buffer calendar-buffer
+ other-calendars-buffer))
+ (buffer-list nil)
+ b)
+ (while buffers
+ (setq b (car buffers))
+ (setq b (cond ((stringp b) (get-buffer b))
+ ((bufferp b) b)
+ (t nil)))
+ (if b (setq buffer-list (cons b buffer-list)))
+ (setq buffers (cdr buffers)))
+ buffer-list))
+
(defun exit-calendar ()
- "Get out of the calendar window and bury it and related buffers."
+ "Get out of the calendar window and hide it and related buffers."
(interactive)
- (let ((diary-buffer (get-file-buffer diary-file))
- (d-buffer (get-buffer fancy-diary-buffer))
- (h-buffer (get-buffer holiday-buffer)))
- (if (not diary-buffer)
- (progn
- (set-window-configuration calendar-window-configuration)
- (bury-buffer calendar-buffer)
- (if d-buffer (bury-buffer d-buffer))
- (if h-buffer (bury-buffer h-buffer)))
- (if (or (not (buffer-modified-p diary-buffer))
- (yes-or-no-p "Diary modified; do you really want to exit the calendar? "))
- (progn
- (set-window-configuration calendar-window-configuration)
- (bury-buffer calendar-buffer)
- (if d-buffer (bury-buffer d-buffer))
- (if h-buffer (bury-buffer h-buffer))
- (set-buffer diary-buffer)
- (set-buffer-modified-p nil)
- (bury-buffer diary-buffer))))))
-
-(defun calendar-current-month ()
- "Reposition the calendar window so the current date is visible."
- (interactive)
- (let ((today (calendar-current-date)));; The date might have changed.
- (if (not (calendar-date-is-visible-p today))
- (generate-calendar-window)
- (update-calendar-mode-line)
- (calendar-cursor-to-visible-date today))))
-
-(defun calendar-forward-month (arg)
- "Move the cursor forward ARG months.
-Movement is backward if ARG is negative."
- (interactive "p")
- (calendar-cursor-to-nearest-date)
- (let* ((cursor-date (calendar-cursor-to-date t))
- (month (extract-calendar-month cursor-date))
- (day (extract-calendar-day cursor-date))
- (year (extract-calendar-year cursor-date)))
- (increment-calendar-month month year arg)
- (let ((last (calendar-last-day-of-month month year)))
- (if (< last day)
- (setq day last)))
- ;; Put the new month on the screen, if needed, and go to the new date.
- (let ((new-cursor-date (list month day year)))
- (if (not (calendar-date-is-visible-p new-cursor-date))
- (calendar-other-month month year))
- (calendar-cursor-to-visible-date new-cursor-date))))
-
-(defun calendar-forward-year (arg)
- "Move the cursor forward by ARG years.
-Movement is backward if ARG is negative."
- (interactive "p")
- (calendar-forward-month (* 12 arg)))
-
-(defun calendar-backward-month (arg)
- "Move the cursor backward by ARG months.
-Movement is forward if ARG is negative."
- (interactive "p")
- (calendar-forward-month (- arg)))
-
-(defun calendar-backward-year (arg)
- "Move the cursor backward ARG years.
-Movement is forward is ARG is negative."
- (interactive "p")
- (calendar-forward-month (* -12 arg)))
-
-(defun scroll-calendar-left (arg)
- "Scroll the displayed calendar left by ARG months.
-If ARG is negative the calendar is scrolled right. Maintains the relative
-position of the cursor with respect to the calendar as well as possible."
- (interactive "p")
- (calendar-cursor-to-nearest-date)
- (let ((old-date (calendar-cursor-to-date))
- (today (calendar-current-date)))
- (if (/= arg 0)
- (progn
- (increment-calendar-month displayed-month displayed-year arg)
- (generate-calendar-window displayed-month displayed-year)
- (calendar-cursor-to-visible-date
- (cond
- ((calendar-date-is-visible-p old-date) old-date)
- ((calendar-date-is-visible-p today) today)
- (t (list displayed-month 1 displayed-year))))))))
-
-(defun scroll-calendar-right (arg)
- "Scroll the displayed calendar window right by ARG months.
-If ARG is negative the calendar is scrolled left. Maintains the relative
-position of the cursor with respect to the calendar as well as possible."
- (interactive "p")
- (scroll-calendar-left (- arg)))
-
-(defun scroll-calendar-left-three-months (arg)
- "Scroll the displayed calendar window left by 3*ARG months.
-If ARG is negative the calendar is scrolled right. Maintains the relative
-position of the cursor with respect to the calendar as well as possible."
- (interactive "p")
- (scroll-calendar-left (* 3 arg)))
-
-(defun scroll-calendar-right-three-months (arg)
- "Scroll the displayed calendar window right by 3*ARG months.
-If ARG is negative the calendar is scrolled left. Maintains the relative
-position of the cursor with respect to the calendar as well as possible."
- (interactive "p")
- (scroll-calendar-left (* -3 arg)))
+ (let* ((diary-buffer (get-file-buffer diary-file)))
+ (if (or (not diary-buffer)
+ (not (buffer-modified-p diary-buffer))
+ (yes-or-no-p
+ "Diary modified; do you really want to exit the calendar? "))
+ ;; Need to do this multiple times because one time can replace some
+ ;; calendar-related buffers with other calendar-related buffers
+ (mapcar (lambda (x)
+ (mapcar 'calendar-hide-window (calendar-window-list)))
+ (calendar-window-list)))))
+
+(defun calendar-hide-window (window)
+ "Hide WINDOW if it is calendar-related."
+ (let ((buffer (if (window-live-p window) (window-buffer window))))
+ (if (memq buffer (calendar-buffer-list))
+ (cond
+ ((and window-system
+ (eq 'icon (cdr (assoc 'visibility
+ (frame-parameters
+ (window-frame window))))))
+ nil)
+ ((and window-system (window-dedicated-p window))
+ (if calendar-remove-frame-by-deleting
+ (delete-frame (window-frame window))
+ (iconify-frame (window-frame window))))
+ ((not (and (select-window window) (one-window-p window)))
+ (delete-window window))
+ (t (set-buffer buffer)
+ (bury-buffer))))))
(defun calendar-current-date ()
- "Returns the current date in a list (month day year).
-If in the calendar buffer, also sets the current date local variables."
- (let* ((date (current-time-string))
- (garbage
- (string-match
- "^\\([A-Z][a-z]*\\) *\\([A-Z][a-z]*\\) *\\([0-9]*\\) .* \\([0-9]*\\)$"
- date))
- (month
- (cdr (assoc
- (substring date (match-beginning 2) (match-end 2))
- '(("Jan" . 1) ("Feb" . 2) ("Mar" . 3) ("Apr" . 4)
- ("May" . 5) ("Jun" . 6) ("Jul" . 7) ("Aug" . 8)
- ("Sep" . 9) ("Oct" . 10) ("Nov" . 11) ("Dec" . 12)))))
- (day
- (string-to-int (substring date (match-beginning 3) (match-end 3))))
- (year
- (string-to-int (substring date (match-beginning 4) (match-end 4)))))
- (list month day year)))
+ "Returns the current date in a list (month day year)."
+ (let ((now (decode-time)))
+ (list (nth 4 now) (nth 3 now) (nth 5 now))))
(defun calendar-cursor-to-date (&optional error)
- "Returns a list of the month, day, and year of current cursor position.
+ "Returns a list (month day year) of current cursor position.
If cursor is not on a specific date, signals an error if optional parameter
ERROR is t, otherwise just returns nil."
(let* ((segment (/ (current-column) 25))
((and (= 12 month) (= segment 0)) (1- displayed-year))
((and (= 1 month) (= segment 2)) (1+ displayed-year))
(t displayed-year))))
- (if (and (looking-at "[0-9]")
+ (if (and (looking-at "[ 0-9]?[0-9][^0-9]")
(< 2 (count-lines (point-min) (point))))
(save-excursion
- (re-search-backward "[^0-9]")
+ (if (not (looking-at " "))
+ (re-search-backward "[^0-9]"))
(list month
(string-to-int (buffer-substring (1+ (point)) (+ 4 (point))))
year))
(if error (error "Not on a date!"))))
(if error (error "Not on a date!"))))))
-(defun calendar-cursor-to-nearest-date ()
- "Move the cursor to the closest date.
-The position of the cursor is unchanged if it is already on a date.
-Returns the list (month day year) giving the cursor position."
- (let ((date (calendar-cursor-to-date))
- (column (current-column)))
- (if date
- date
- (if (> 3 (count-lines (point-min) (point)))
- (progn
- (goto-line 3)
- (move-to-column column)))
- (if (not (looking-at "[0-9]"))
- (if (and (not (looking-at " *$"))
- (or (< column 25)
- (and (> column 27)
- (< column 50))
- (and (> column 52)
- (< column 75))))
- (progn
- (re-search-forward "[0-9]" nil t)
- (backward-char 1))
- (re-search-backward "[0-9]" nil t)))
- (calendar-cursor-to-date))))
-
-(defun calendar-forward-day (arg)
- "Move the cursor forward ARG days.
-Moves backward if ARG is negative."
- (interactive "p")
- (if (/= 0 arg)
- (let*
- ((cursor-date (calendar-cursor-to-date))
- (cursor-date (if cursor-date
- cursor-date
- (if (> arg 0) (setq arg (1- arg)))
- (calendar-cursor-to-nearest-date)))
- (new-cursor-date
- (calendar-gregorian-from-absolute
- (+ (calendar-absolute-from-gregorian cursor-date) arg)))
- (new-display-month (extract-calendar-month new-cursor-date))
- (new-display-year (extract-calendar-year new-cursor-date)))
- ;; Put the new month on the screen, if needed, and go to the new date.
- (if (not (calendar-date-is-visible-p new-cursor-date))
- (calendar-other-month new-display-month new-display-year))
- (calendar-cursor-to-visible-date new-cursor-date))))
-
-(defun calendar-backward-day (arg)
- "Move the cursor back ARG days.
-Moves forward if ARG is negative."
- (interactive "p")
- (calendar-forward-day (- arg)))
-
-(defun calendar-forward-week (arg)
- "Move the cursor forward ARG weeks.
-Moves backward if ARG is negative."
- (interactive "p")
- (calendar-forward-day (* arg 7)))
-
-(defun calendar-backward-week (arg)
- "Move the cursor back ARG weeks.
-Moves forward if ARG is negative."
- (interactive "p")
- (calendar-forward-day (* arg -7)))
-
-(defun calendar-beginning-of-week (arg)
- "Move the cursor back ARG calendar-week-start-day's."
- (interactive "p")
- (calendar-cursor-to-nearest-date)
- (let ((day (calendar-day-of-week (calendar-cursor-to-date))))
- (calendar-backward-day
- (if (= day calendar-week-start-day)
- (* 7 arg)
- (+ (mod (- day calendar-week-start-day) 7)
- (* 7 (1- arg)))))))
-
-(defun calendar-end-of-week (arg)
- "Move the cursor forward ARG calendar-week-start-day+6's."
- (interactive "p")
- (calendar-cursor-to-nearest-date)
- (let ((day (calendar-day-of-week (calendar-cursor-to-date))))
- (calendar-forward-day
- (if (= day (mod (1- calendar-week-start-day) 7))
- (* 7 arg)
- (+ (- 6 (mod (- day calendar-week-start-day) 7))
- (* 7 (1- arg)))))))
-
-(defun calendar-beginning-of-month (arg)
- "Move the cursor backward ARG month beginnings."
- (interactive "p")
- (calendar-cursor-to-nearest-date)
- (let* ((date (calendar-cursor-to-date))
- (month (extract-calendar-month date))
- (day (extract-calendar-day date))
- (year (extract-calendar-year date)))
- (if (= day 1)
- (calendar-backward-month arg)
- (calendar-cursor-to-visible-date (list month 1 year))
- (calendar-backward-month (1- arg)))))
-
-(defun calendar-end-of-month (arg)
- "Move the cursor forward ARG month ends."
- (interactive "p")
- (calendar-cursor-to-nearest-date)
- (let* ((date (calendar-cursor-to-date))
- (month (extract-calendar-month date))
- (day (extract-calendar-day date))
- (year (extract-calendar-year date))
- (last-day (calendar-last-day-of-month month year)))
- (if (/= day last-day)
- (progn
- (calendar-cursor-to-visible-date (list month last-day year))
- (setq arg (1- arg))))
- (increment-calendar-month month year arg)
- (let ((last-day (list
- month
- (calendar-last-day-of-month month year)
- year)))
- (if (not (calendar-date-is-visible-p last-day))
- (calendar-other-month month year)
- (calendar-cursor-to-visible-date last-day)))))
-
-(defun calendar-beginning-of-year (arg)
- "Move the cursor backward ARG year beginnings."
- (interactive "p")
- (calendar-cursor-to-nearest-date)
- (let* ((date (calendar-cursor-to-date))
- (month (extract-calendar-month date))
- (day (extract-calendar-day date))
- (year (extract-calendar-year date))
- (jan-first (list 1 1 year)))
- (if (and (= day 1) (= 1 month))
- (calendar-backward-month (* 12 arg))
- (if (and (= arg 1)
- (calendar-date-is-visible-p jan-first))
- (calendar-cursor-to-visible-date jan-first)
- (calendar-other-month 1 (- year (1- arg)))))))
-
-(defun calendar-end-of-year (arg)
- "Move the cursor forward ARG year beginnings."
- (interactive "p")
- (calendar-cursor-to-nearest-date)
- (let* ((date (calendar-cursor-to-date))
- (month (extract-calendar-month date))
- (day (extract-calendar-day date))
- (year (extract-calendar-year date))
- (dec-31 (list 12 31 year)))
- (if (and (= day 31) (= 12 month))
- (calendar-forward-month (* 12 arg))
- (if (and (= arg 1)
- (calendar-date-is-visible-p dec-31))
- (calendar-cursor-to-visible-date dec-31)
- (calendar-other-month 12 (- year (1- arg)))
- (calendar-cursor-to-visible-date (list 12 31 displayed-year))))))
-
;; The following version of calendar-gregorian-from-absolute is preferred for
;; reasons of clarity, BUT it's much slower than the version that follows it.
(setq month (1+ month)))
(list month day year)))))
-(defun calendar-cursor-to-visible-date (date)
- "Move the cursor to DATE that is on the screen."
- (let* ((month (extract-calendar-month date))
- (day (extract-calendar-day date))
- (year (extract-calendar-year date))
- (first-of-month-weekday (calendar-day-of-week (list month 1 year))))
- (goto-line (+ 3
- (/ (+ day -1
- (mod
- (- (calendar-day-of-week (list month 1 year))
- calendar-week-start-day)
- 7))
- 7)))
- (move-to-column (+ 6
- (* 25
- (1+ (calendar-interval
- displayed-month displayed-year month year)))
- (* 3 (mod
- (- (calendar-day-of-week date)
- calendar-week-start-day)
- 7))))))
-
(defun calendar-other-month (month year)
"Display a three-month calendar centered around MONTH and YEAR."
- (interactive
- (let* ((completion-ignore-case t)
- (month (cdr (assoc
- (capitalize
- (completing-read
- "Month name: "
- (mapcar 'list (append calendar-month-name-array nil))
- nil t))
- (calendar-make-alist calendar-month-name-array))))
- (year (calendar-read
- "Year (>0): "
- '(lambda (x) (> x 0))
- (int-to-string
- (extract-calendar-year (calendar-current-date))))))
- (list month year)))
+ (interactive (calendar-read-date 'noday))
(if (and (= month displayed-month)
(= year displayed-year))
nil
(setq value (read-minibuffer prompt initial-contents)))
value))
-(defun calendar-read-date ()
- "Prompt for Gregorian date. Returns a list (month day year)."
+(defun calendar-read-date (&optional noday)
+ "Prompt for Gregorian date. Returns a list (month day year).
+If optional NODAY is t, does not ask for day, but just returns
+\(month nil year); if NODAY is any other non-nil value the value returned is
+\(month year) "
(let* ((year (calendar-read
"Year (>0): "
'(lambda (x) (> x 0))
(calendar-current-date)))))
(month-array calendar-month-name-array)
(completion-ignore-case t)
- (month (cdr (assoc
- (capitalize
+ (month (cdr (assoc-ignore-case
(completing-read
"Month name: "
(mapcar 'list (append month-array nil))
- nil t))
- (calendar-make-alist month-array 1 'capitalize))))
- (last (calendar-last-day-of-month month year))
- (day (calendar-read
- (format "Day (1-%d): " last)
- '(lambda (x) (and (< 0 x) (<= x last))))))
- (list month day year)))
-
-(defun calendar-goto-date (date)
- "Move cursor to DATE."
- (interactive (list (calendar-read-date)))
- (let ((month (extract-calendar-month date))
- (year (extract-calendar-year date)))
- (if (not (calendar-date-is-visible-p date))
- (calendar-other-month
- (if (and (= month 1) (= year 1))
- 2
- month)
- year)))
- (calendar-cursor-to-visible-date date))
-
-(defun calendar-goto-julian-date (date &optional noecho)
- "Move cursor to Julian DATE; echo Julian date unless NOECHO is t."
- (interactive
- (let* ((today (calendar-current-date))
- (year (calendar-read
- "Julian calendar year (>0): "
- '(lambda (x) (> x 0))
- (int-to-string
- (extract-calendar-year
- (calendar-julian-from-absolute
- (calendar-absolute-from-gregorian
- today))))))
- (month-array calendar-month-name-array)
- (completion-ignore-case t)
- (month (cdr (assoc
- (capitalize
- (completing-read
- "Julian calendar month name: "
- (mapcar 'list (append month-array nil))
- nil t))
- (calendar-make-alist month-array 1 'capitalize))))
- (last
- (if (and (zerop (% year 4)) (= month 2))
- 29
- (aref [31 28 31 30 31 30 31 31 30 31 30 31] (1- month))))
- (day (calendar-read
- (format "Julian calendar day (%d-%d): "
- (if (and (= year 1) (= month 1)) 3 1) last)
- '(lambda (x)
- (and (< (if (and (= year 1) (= month 1)) 2 0) x)
- (<= x last))))))
- (list (list month day year))))
- (calendar-goto-date (calendar-gregorian-from-absolute
- (calendar-absolute-from-julian date)))
- (or noecho (calendar-print-julian-date)))
-
-(defun calendar-goto-hebrew-date (date &optional noecho)
- "Move cursor to Hebrew DATE; echo Hebrew date unless NOECHO is t."
- (interactive
- (let* ((today (calendar-current-date))
- (year (calendar-read
- "Hebrew calendar year (>3760): "
- '(lambda (x) (> x 3760))
- (int-to-string
- (extract-calendar-year
- (calendar-hebrew-from-absolute
- (calendar-absolute-from-gregorian today))))))
- (month-array (if (hebrew-calendar-leap-year-p year)
- calendar-hebrew-month-name-array-leap-year
- calendar-hebrew-month-name-array-common-year))
- (completion-ignore-case t)
- (month (cdr (assoc
- (capitalize
- (completing-read
- "Hebrew calendar month name: "
- (mapcar 'list (append month-array nil))
- (if (= year 3761)
- '(lambda (x)
- (let ((m (cdr
- (assoc
- (car x)
- (calendar-make-alist
- month-array)))))
- (< 0
- (calendar-absolute-from-hebrew
- (list m
- (hebrew-calendar-last-day-of-month
- m year)
- year))))))
-
- t))
- (calendar-make-alist month-array 1 'capitalize))))
- (last (hebrew-calendar-last-day-of-month month year))
- (first (if (and (= year 3761) (= month 10))
- 18 1))
- (day (calendar-read
- (format "Hebrew calendar day (%d-%d): "
- first last)
- '(lambda (x) (and (<= first x) (<= x last))))))
- (list (list month day year))))
- (calendar-goto-date (calendar-gregorian-from-absolute
- (calendar-absolute-from-hebrew date)))
- (or noecho (calendar-print-hebrew-date)))
-
-(defun calendar-goto-islamic-date (date &optional noecho)
- "Move cursor to Islamic DATE; echo Islamic date unless NOECHO is t."
- (interactive
- (let* ((today (calendar-current-date))
- (year (calendar-read
- "Islamic calendar year (>0): "
- '(lambda (x) (> x 0))
- (int-to-string
- (extract-calendar-year
- (calendar-islamic-from-absolute
- (calendar-absolute-from-gregorian today))))))
- (month-array calendar-islamic-month-name-array)
- (completion-ignore-case t)
- (month (cdr (assoc
- (capitalize
- (completing-read
- "Islamic calendar month name: "
- (mapcar 'list (append month-array nil))
- nil t))
- (calendar-make-alist month-array 1 'capitalize))))
- (last (islamic-calendar-last-day-of-month month year))
- (day (calendar-read
- (format "Islamic calendar day (1-%d): " last)
- '(lambda (x) (and (< 0 x) (<= x last))))))
- (list (list month day year))))
- (calendar-goto-date (calendar-gregorian-from-absolute
- (calendar-absolute-from-islamic date)))
- (or noecho (calendar-print-islamic-date)))
-
-(defun calendar-goto-iso-date (date &optional noecho)
- "Move cursor to ISO DATE; echo ISO date unless NOECHO is t."
- (interactive
- (let* ((today (calendar-current-date))
- (year (calendar-read
- "ISO calendar year (>0): "
- '(lambda (x) (> x 0))
- (int-to-string (extract-calendar-year today))))
- (no-weeks (extract-calendar-month
- (calendar-iso-from-absolute
- (1-
- (calendar-dayname-on-or-before
- 1 (calendar-absolute-from-gregorian
- (list 1 4 (1+ year))))))))
- (week (calendar-read
- (format "ISO calendar week (1-%d): " no-weeks)
- '(lambda (x) (and (> x 0) (<= x no-weeks)))))
- (day (calendar-read
- "ISO day (1-7): "
- '(lambda (x) (and (<= 1 x) (<= x 7))))))
- (list (list week day year))))
- (calendar-goto-date (calendar-gregorian-from-absolute
- (calendar-absolute-from-iso date)))
- (or noecho (calendar-print-iso-date)))
+ nil t)
+ (calendar-make-alist month-array 1))))
+ (last (calendar-last-day-of-month month year)))
+ (if noday
+ (if (eq noday t)
+ (list month nil year)
+ (list month year))
+ (list month
+ (calendar-read (format "Day (1-%d): " last)
+ '(lambda (x) (and (< 0 x) (<= x last))))
+ year))))
(defun calendar-interval (mon1 yr1 mon2 yr2)
"The number of months difference between MON1, YR1 and MON2, YR2."
(+ (* 12 (- yr2 yr1))
(- mon2 mon1)))
-(defun calendar-day-name (date)
- "Returns a string with the name of the day of the week of DATE."
- (aref calendar-day-name-array (calendar-day-of-week date)))
+(defun calendar-day-name (date &optional width absolute)
+ "Returns a string with the name of the day of the week of DATE.
+If WIDTH is non-nil, return just the first WIDTH characters of the name.
+If ABSOLUTE is non-nil, then DATE is actually the day-of-the-week
+rather than a date."
+ (let ((string (aref calendar-day-name-array
+ (if absolute date (calendar-day-of-week date)))))
+ (cond ((null width) string)
+ (enable-multibyte-characters (truncate-string-to-width string width))
+ (t (substring string 0 width)))))
(defvar calendar-day-name-array
- ["Sunday" "Monday" "Tuesday" "Wednesday" "Thursday" "Friday" "Saturday"])
+ ["Sunday" "Monday" "Tuesday" "Wednesday" "Thursday" "Friday" "Saturday"]
+ "Array of capitalized strings giving, in order, the day names.")
(defvar calendar-month-name-array
["January" "February" "March" "April" "May" "June"
- "July" "August" "September" "October" "November" "December"])
+ "July" "August" "September" "October" "November" "December"]
+ "Array of capitalized strings giving, in order, the month names.")
(defun calendar-make-alist (sequence &optional start-index filter)
"Make an assoc list corresponding to SEQUENCE.
index))
(append sequence nil))))
-(defun calendar-month-name (month)
- "The name of MONTH."
- (aref calendar-month-name-array (1- month)))
+(defun calendar-month-name (month &optional width)
+ "The name of MONTH.
+If WIDTH is non-nil, return just the first WIDTH characters of the name."
+ (let ((string (aref calendar-month-name-array (1- month))))
+ (if width
+ (let ((i 0) (result "") (pos 0))
+ (while (< i width)
+ (let ((chartext (char-to-string (sref string pos))))
+ (setq pos (+ pos (length chartext)))
+ (setq result (concat result chartext)))
+ (setq i (1+ i)))
+ result)
+ string)))
(defun calendar-day-of-week (date)
"Returns the day-of-the-week index of DATE, 0 for Sunday, 1 for Monday, etc."
(insert mark)
(forward-char -2))
(overlay-put
- (make-overlay (1-(point)) (1+ (point))) 'face mark))))))
+ (make-overlay (1- (point)) (1+ (point))) 'face mark))))))
(defun calendar-star-date ()
"Replace the date under the cursor in the calendar window with asterisks.
(if nodayname
nil
(if abbreviate
- (substring (calendar-day-name date) 0 3)
+ (calendar-day-name date 3)
(calendar-day-name date))))
(month (extract-calendar-month date))
(monthname
(if abbreviate
- (substring
- (calendar-month-name month) 0 3)
+ (calendar-month-name month 3)
(calendar-month-name month)))
(day (int-to-string (extract-calendar-day date)))
(month (int-to-string month))
(format "Day %d of %d; %d day%s remaining in the year"
day year days-remaining (if (= days-remaining 1) "" "s"))))
+(defun calendar-print-other-dates ()
+ "Show dates on other calendars for date under the cursor."
+ (interactive)
+ (let* ((date (calendar-cursor-to-date t)))
+ (save-excursion
+ (set-buffer (get-buffer-create other-calendars-buffer))
+ (setq buffer-read-only nil)
+ (calendar-set-mode-line
+ (concat (calendar-date-string date) " (Gregorian)"))
+ (erase-buffer)
+ (insert
+ (mapconcat 'identity
+ (list (calendar-day-of-year-string date)
+ (format "ISO date: %s" (calendar-iso-date-string date))
+ (format "Julian date: %s"
+ (calendar-julian-date-string date))
+ (format
+ "Astronomical (Julian) day number (at noon UTC): %s.0"
+ (calendar-astro-date-string date))
+ (format "Fixed (RD) date: %s"
+ (calendar-absolute-from-gregorian date))
+ (format "Hebrew date (before sunset): %s"
+ (calendar-hebrew-date-string date))
+ (format "Persian date: %s"
+ (calendar-persian-date-string date))
+ (let ((i (calendar-islamic-date-string date)))
+ (if (not (string-equal i ""))
+ (format "Islamic date (before sunset): %s" i)))
+ (format "Chinese date: %s"
+ (calendar-chinese-date-string date))
+ (let ((c (calendar-coptic-date-string date)))
+ (if (not (string-equal c ""))
+ (format "Coptic date: %s" c)))
+ (let ((e (calendar-ethiopic-date-string date)))
+ (if (not (string-equal e ""))
+ (format "Ethiopic date: %s" e)))
+ (let ((f (calendar-french-date-string date)))
+ (if (not (string-equal f ""))
+ (format "French Revolutionary date: %s" f)))
+ (format "Mayan date: %s"
+ (calendar-mayan-date-string date)))
+ "\n"))
+ (goto-char (point-min))
+ (set-buffer-modified-p nil)
+ (setq buffer-read-only t)
+ (display-buffer other-calendars-buffer))))
+
(defun calendar-print-day-of-year ()
"Show day number in year/days remaining in year for date under the cursor."
(interactive)
(message (calendar-day-of-year-string (calendar-cursor-to-date t))))
-(defun calendar-absolute-from-iso (date)
- "The number of days elapsed between the Gregorian date 12/31/1 BC and DATE.
-The `ISO year' corresponds approximately to the Gregorian year, but
-weeks start on Monday and end on Sunday. The first week of the ISO year is
-the first such week in which at least 4 days are in a year. The ISO
-commercial DATE has the form (week day year) in which week is in the range
-1..52 and day is in the range 0..6 (1 = Monday, 2 = Tuesday, ..., 0 =
-Sunday). The Gregorian date Sunday, December 31, 1 BC is imaginary."
- (let* ((week (extract-calendar-month date))
- (day (extract-calendar-day date))
- (year (extract-calendar-year date)))
- (+ (calendar-dayname-on-or-before
- 1 (+ 3 (calendar-absolute-from-gregorian (list 1 1 year))))
- (* 7 (1- week))
- (if (= day 0) 6 (1- day)))))
-
-(defun calendar-iso-from-absolute (date)
- "Compute the `ISO commercial date' corresponding to the absolute DATE.
-The ISO year corresponds approximately to the Gregorian year, but weeks
-start on Monday and end on Sunday. The first week of the ISO year is the
-first such week in which at least 4 days are in a year. The ISO commercial
-date has the form (week day year) in which week is in the range 1..52 and
-day is in the range 0..6 (1 = Monday, 2 = Tuesday, ..., 0 = Sunday). The
-absolute date is the number of days elapsed since the (imaginary) Gregorian
-date Sunday, December 31, 1 BC."
- (let* ((approx (extract-calendar-year
- (calendar-gregorian-from-absolute (- date 3))))
- (year (+ approx
- (calendar-sum y approx
- (>= date (calendar-absolute-from-iso (list 1 1 (1+ y))))
- 1))))
- (list
- (1+ (/ (- date (calendar-absolute-from-iso (list 1 1 year))) 7))
- (% date 7)
- year)))
-
-(defun calendar-iso-date-string (&optional date)
- "String of ISO date of Gregorian DATE.
-Defaults to today's date if DATE is not given."
- (let* ((d (calendar-absolute-from-gregorian
- (or date (calendar-current-date))))
- (day (% d 7))
- (iso-date (calendar-iso-from-absolute d)))
- (format "Day %s of week %d of %d"
- (if (zerop day) 7 day)
- (extract-calendar-month iso-date)
- (extract-calendar-year iso-date))))
-
-(defun calendar-print-iso-date ()
- "Show equivalent ISO date for the date under the cursor."
- (interactive)
- (message "ISO date: %s"
- (calendar-iso-date-string (calendar-cursor-to-date t))))
-
-(defun calendar-julian-from-absolute (date)
- "Compute the Julian (month day year) corresponding to the absolute DATE.
-The absolute date is the number of days elapsed since the (imaginary)
-Gregorian date Sunday, December 31, 1 BC."
- (let* ((approx (/ (+ date 2) 366));; Approximation from below.
- (year ;; Search forward from the approximation.
- (+ approx
- (calendar-sum y approx
- (>= date (calendar-absolute-from-julian (list 1 1 (1+ y))))
- 1)))
- (month ;; Search forward from January.
- (1+ (calendar-sum m 1
- (> date
- (calendar-absolute-from-julian
- (list m
- (if (and (= m 2) (= (% year 4) 0))
- 29
- (aref [31 28 31 30 31 30 31 31 30 31 30 31]
- (1- m)))
- year)))
- 1)))
- (day ;; Calculate the day by subtraction.
- (- date (1- (calendar-absolute-from-julian (list month 1 year))))))
- (list month day year)))
-
-(defun calendar-absolute-from-julian (date)
- "The number of days elapsed between the Gregorian date 12/31/1 BC and DATE.
-The Gregorian date Sunday, December 31, 1 BC is imaginary."
- (let ((month (extract-calendar-month date))
- (day (extract-calendar-day date))
- (year (extract-calendar-year date)))
- (+ (calendar-day-number date)
- (if (and (= (% year 100) 0)
- (/= (% year 400) 0)
- (> month 2))
- 1 0);; Correct for Julian but not Gregorian leap year.
- (* 365 (1- year))
- (/ (1- year) 4)
- -2)))
-
-(defun calendar-julian-date-string (&optional date)
- "String of Julian date of Gregorian DATE.
-Defaults to today's date if DATE is not given.
-Driven by the variable `calendar-date-display-form'."
- (calendar-date-string
- (calendar-julian-from-absolute
- (calendar-absolute-from-gregorian
- (or date (calendar-current-date))))
- nil t))
-
-(defun calendar-print-julian-date ()
- "Show the Julian calendar equivalent of the date under the cursor."
- (interactive)
- (message "Julian date: %s"
- (calendar-julian-date-string (calendar-cursor-to-date t))))
-
-(defun islamic-calendar-leap-year-p (year)
- "Returns t if YEAR is a leap year on the Islamic calendar."
- (memq (% year 30)
- (list 2 5 7 10 13 16 18 21 24 26 29)))
-
-(defun islamic-calendar-last-day-of-month (month year)
- "The last day in MONTH during YEAR on the Islamic calendar."
- (cond
- ((memq month (list 1 3 5 7 9 11)) 30)
- ((memq month (list 2 4 6 8 10)) 29)
- (t (if (islamic-calendar-leap-year-p year) 30 29))))
-
-(defun islamic-calendar-day-number (date)
- "Return the day number within the year of the Islamic date DATE."
- (let* ((month (extract-calendar-month date))
- (day (extract-calendar-day date)))
- (+ (* 30 (/ month 2))
- (* 29 (/ (1- month) 2))
- day)))
-
-(defun calendar-absolute-from-islamic (date)
- "Absolute date of Islamic DATE.
-The absolute date is the number of days elapsed since the (imaginary)
-Gregorian date Sunday, December 31, 1 BC."
- (let* ((month (extract-calendar-month date))
- (day (extract-calendar-day date))
- (year (extract-calendar-year date))
- (y (% year 30))
- (leap-years-in-cycle
- (cond
- ((< y 3) 0) ((< y 6) 1) ((< y 8) 2) ((< y 11) 3) ((< y 14) 4)
- ((< y 17) 5) ((< y 19) 6) ((< y 22) 7) ((< y 25) 8) ((< y 27) 9)
- (t 10))))
- (+ (islamic-calendar-day-number date);; days so far this year
- (* (1- year) 354) ;; days in all non-leap years
- (* 11 (/ year 30)) ;; leap days in complete cycles
- leap-years-in-cycle ;; leap days this cycle
- 227014))) ;; days before start of calendar
-
-(defun calendar-islamic-from-absolute (date)
- "Compute the Islamic date (month day year) corresponding to absolute DATE.
-The absolute date is the number of days elapsed since the (imaginary)
-Gregorian date Sunday, December 31, 1 BC."
- (if (< date 227015)
- (list 0 0 0);; pre-Islamic date
- (let* ((approx (/ (- date 227014) 355));; Approximation from below.
- (year ;; Search forward from the approximation.
- (+ approx
- (calendar-sum y approx
- (>= date (calendar-absolute-from-islamic
- (list 1 1 (1+ y))))
- 1)))
- (month ;; Search forward from Muharram.
- (1+ (calendar-sum m 1
- (> date
- (calendar-absolute-from-islamic
- (list m
- (islamic-calendar-last-day-of-month
- m year)
- year)))
- 1)))
- (day ;; Calculate the day by subtraction.
- (- date
- (1- (calendar-absolute-from-islamic (list month 1 year))))))
- (list month day year))))
-
-(defvar calendar-islamic-month-name-array
- ["Muharram" "Safar" "Rabi I" "Rabi II" "Jumada I" "Jumada II"
- "Rajab" "Sha'ban" "Ramadan" "Shawwal" "Dhu al-Qada" "Dhu al-Hijjah"])
-
-(defun calendar-islamic-date-string (&optional date)
- "String of Islamic date before sunset of Gregorian DATE.
-Returns the empty string if DATE is pre-Islamic.
-Defaults to today's date if DATE is not given.
-Driven by the variable `calendar-date-display-form'."
- (let ((calendar-month-name-array calendar-islamic-month-name-array)
- (islamic-date (calendar-islamic-from-absolute
- (calendar-absolute-from-gregorian
- (or date (calendar-current-date))))))
- (if (< (extract-calendar-year islamic-date) 1)
- ""
- (calendar-date-string islamic-date nil t))))
-
-(defun calendar-print-islamic-date ()
- "Show the Islamic calendar equivalent of the date under the cursor."
- (interactive)
- (let ((i (calendar-islamic-date-string (calendar-cursor-to-date t))))
- (if (string-equal i "")
- (message "Date is pre-Islamic")
- (message "Islamic date (until sunset): %s" i))))
-
-(defun calendar-hebrew-from-absolute (date)
- "Compute the Hebrew date (month day year) corresponding to absolute DATE.
-The absolute date is the number of days elapsed since the (imaginary)
-Gregorian date Sunday, December 31, 1 BC."
- (let* ((greg-date (calendar-gregorian-from-absolute date))
- (month (aref [9 10 11 12 1 2 3 4 7 7 7 8]
- (1- (extract-calendar-month greg-date))))
- (day)
- (year (+ 3760 (extract-calendar-year greg-date))))
- (while (>= date (calendar-absolute-from-hebrew (list 7 1 (1+ year))))
- (setq year (1+ year)))
- (let ((length (hebrew-calendar-last-month-of-year year)))
- (while (> date
- (calendar-absolute-from-hebrew
- (list month
- (hebrew-calendar-last-day-of-month month year)
- year)))
- (setq month (1+ (% month length)))))
- (setq day (1+
- (- date (calendar-absolute-from-hebrew (list month 1 year)))))
- (list month day year)))
-
-(defun hebrew-calendar-leap-year-p (year)
- "t if YEAR is a Hebrew calendar leap year."
- (< (% (1+ (* 7 year)) 19) 7))
-
-(defun hebrew-calendar-last-month-of-year (year)
- "The last month of the Hebrew calendar YEAR."
- (if (hebrew-calendar-leap-year-p year)
- 13
- 12))
-
-(defun hebrew-calendar-last-day-of-month (month year)
- "The last day of MONTH in YEAR."
- (if (or (memq month (list 2 4 6 10 13))
- (and (= month 12) (not (hebrew-calendar-leap-year-p year)))
- (and (= month 8) (not (hebrew-calendar-long-heshvan-p year)))
- (and (= month 9) (hebrew-calendar-short-kislev-p year)))
- 29
- 30))
-
-(defun hebrew-calendar-elapsed-days (year)
- "Days from Sun. prior to start of Hebrew calendar to mean conjunction of Tishri of Hebrew YEAR."
- (let* ((months-elapsed
- (+ (* 235 (/ (1- year) 19));; Months in complete cycles so far.
- (* 12 (% (1- year) 19)) ;; Regular months in this cycle
- (/ (1+ (* 7 (% (1- year) 19))) 19)));; Leap months this cycle
- (parts-elapsed (+ 204 (* 793 (% months-elapsed 1080))))
- (hours-elapsed (+ 5
- (* 12 months-elapsed)
- (* 793 (/ months-elapsed 1080))
- (/ parts-elapsed 1080)))
- (parts ;; Conjunction parts
- (+ (* 1080 (% hours-elapsed 24)) (% parts-elapsed 1080)))
- (day ;; Conjunction day
- (+ 1 (* 29 months-elapsed) (/ hours-elapsed 24)))
- (alternative-day
- (if (or (>= parts 19440) ;; If the new moon is at or after midday,
- (and (= (% day 7) 2);; ...or is on a Tuesday...
- (>= parts 9924) ;; at 9 hours, 204 parts or later...
- (not (hebrew-calendar-leap-year-p year)));; of a
- ;; common year,
- (and (= (% day 7) 1);; ...or is on a Monday...
- (>= parts 16789) ;; at 15 hours, 589 parts or later...
- (hebrew-calendar-leap-year-p (1- year))));; at the end
- ;; of a leap year
- ;; Then postpone Rosh HaShanah one day
- (1+ day)
- ;; Else
- day)))
- (if ;; If Rosh HaShanah would occur on Sunday, Wednesday, or Friday
- (memq (% alternative-day 7) (list 0 3 5))
- ;; Then postpone it one (more) day and return
- (1+ alternative-day)
- ;; Else return
- alternative-day)))
-
-(defun hebrew-calendar-days-in-year (year)
- "Number of days in Hebrew YEAR."
- (- (hebrew-calendar-elapsed-days (1+ year))
- (hebrew-calendar-elapsed-days year)))
-
-(defun hebrew-calendar-long-heshvan-p (year)
- "t if Heshvan is long in Hebrew YEAR."
- (= (% (hebrew-calendar-days-in-year year) 10) 5))
-
-(defun hebrew-calendar-short-kislev-p (year)
- "t if Kislev is short in Hebrew YEAR."
- (= (% (hebrew-calendar-days-in-year year) 10) 3))
-
-(defun calendar-absolute-from-hebrew (date)
- "Absolute date of Hebrew DATE.
-The absolute date is the number of days elapsed since the (imaginary)
-Gregorian date Sunday, December 31, 1 BC."
- (let* ((month (extract-calendar-month date))
- (day (extract-calendar-day date))
- (year (extract-calendar-year date)))
- (+ day ;; Days so far this month.
- (if (< month 7);; before Tishri
- ;; Then add days in prior months this year before and after Nisan
- (+ (calendar-sum
- m 7 (<= m (hebrew-calendar-last-month-of-year year))
- (hebrew-calendar-last-day-of-month m year))
- (calendar-sum
- m 1 (< m month)
- (hebrew-calendar-last-day-of-month m year)))
- ;; Else add days in prior months this year
- (calendar-sum
- m 7 (< m month)
- (hebrew-calendar-last-day-of-month m year)))
- (hebrew-calendar-elapsed-days year);; Days in prior years.
- -1373429))) ;; Days elapsed before absolute date 1.
-
-(defvar calendar-hebrew-month-name-array-common-year
- ["Nisan" "Iyar" "Sivan" "Tammuz" "Av" "Elul" "Tishri"
- "Heshvan" "Kislev" "Teveth" "Shevat" "Adar"])
-
-(defvar calendar-hebrew-month-name-array-leap-year
- ["Nisan" "Iyar" "Sivan" "Tammuz" "Av" "Elul" "Tishri"
- "Heshvan" "Kislev" "Teveth" "Shevat" "Adar I" "Adar II"])
-
-(defun calendar-hebrew-date-string (&optional date)
- "String of Hebrew date before sunset of Gregorian DATE.
-Defaults to today's date if DATE is not given.
-Driven by the variable `calendar-date-display-form'."
- (let* ((hebrew-date (calendar-hebrew-from-absolute
- (calendar-absolute-from-gregorian
- (or date (calendar-current-date)))))
- (calendar-month-name-array
- (if (hebrew-calendar-leap-year-p (extract-calendar-year hebrew-date))
- calendar-hebrew-month-name-array-leap-year
- calendar-hebrew-month-name-array-common-year)))
- (calendar-date-string hebrew-date nil t)))
-
-(defun calendar-print-hebrew-date ()
- "Show the Hebrew calendar equivalent of the date under the cursor."
- (interactive)
- (message "Hebrew date (until sunset): %s"
- (calendar-hebrew-date-string (calendar-cursor-to-date t))))
-
-(defun hebrew-calendar-yahrzeit (death-date year)
- "Absolute date of the anniversary of Hebrew DEATH-DATE in Hebrew YEAR."
- (let* ((death-day (extract-calendar-day death-date))
- (death-month (extract-calendar-month death-date))
- (death-year (extract-calendar-year death-date)))
- (cond
- ;; If it's Heshvan 30 it depends on the first anniversary; if
- ;; that was not Heshvan 30, use the day before Kislev 1.
- ((and (= death-month 8)
- (= death-day 30)
- (not (hebrew-calendar-long-heshvan-p (1+ death-year))))
- (1- (calendar-absolute-from-hebrew (list 9 1 year))))
- ;; If it's Kislev 30 it depends on the first anniversary; if
- ;; that was not Kislev 30, use the day before Teveth 1.
- ((and (= death-month 9)
- (= death-day 30)
- (hebrew-calendar-short-kislev-p (1+ death-year)))
- (1- (calendar-absolute-from-hebrew (list 10 1 year))))
- ;; If it's Adar II, use the same day in last month of
- ;; year (Adar or Adar II).
- ((= death-month 13)
- (calendar-absolute-from-hebrew
- (list (hebrew-calendar-last-month-of-year year) death-day year)))
- ;; If it's the 30th in Adar I and year is not a leap year
- ;; (so Adar has only 29 days), use the last day in Shevat.
- ((and (= death-day 30)
- (= death-month 12)
- (not (hebrew-calendar-leap-year-p year)))
- (calendar-absolute-from-hebrew (list 11 30 year)))
- ;; In all other cases, use the normal anniversary of the date of death.
- (t (calendar-absolute-from-hebrew
- (list death-month death-day year))))))
-
(defun calendar-set-mode-line (str)
"Set mode line to STR, centered, surrounded by dashes."
(setq mode-line-format
- (calendar-string-spread (list "" str "") ?- (frame-width))))
-
-;;;###autoload
-(defun list-yahrzeit-dates (death-date start-year end-year)
- "List Yahrzeit dates for *Gregorian* DEATH-DATE from START-YEAR to END-YEAR.
-When called interactively from the calendar window, the date of death is taken
-from the cursor position."
- (interactive
- (let* ((death-date
- (if (equal (current-buffer) (get-buffer calendar-buffer))
- (calendar-cursor-to-date)
- (let* ((today (calendar-current-date))
- (year (calendar-read
- "Year of death (>0): "
- '(lambda (x) (> x 0))
- (int-to-string (extract-calendar-year today))))
- (month-array calendar-month-name-array)
- (completion-ignore-case t)
- (month (cdr (assoc
- (capitalize
- (completing-read
- "Month of death (name): "
- (mapcar 'list (append month-array nil))
- nil t))
- (calendar-make-alist
- month-array 1 'capitalize))))
- (last (calendar-last-day-of-month month year))
- (day (calendar-read
- (format "Day of death (1-%d): " last)
- '(lambda (x) (and (< 0 x) (<= x last))))))
- (list month day year))))
- (death-year (extract-calendar-year death-date))
- (start-year (calendar-read
- (format "Starting year of Yahrzeit table (>%d): "
- death-year)
- '(lambda (x) (> x death-year))
- (int-to-string (1+ death-year))))
- (end-year (calendar-read
- (format "Ending year of Yahrzeit table (>=%d): "
- start-year)
- '(lambda (x) (>= x start-year)))))
- (list death-date start-year end-year)))
- (message "Computing yahrzeits...")
- (let* ((yahrzeit-buffer "*Yahrzeits*")
- (h-date (calendar-hebrew-from-absolute
- (calendar-absolute-from-gregorian death-date)))
- (h-month (extract-calendar-month h-date))
- (h-day (extract-calendar-day h-date))
- (h-year (extract-calendar-year h-date)))
- (set-buffer (get-buffer-create yahrzeit-buffer))
- (setq buffer-read-only nil)
- (calendar-set-mode-line
- (format "Yahrzeit dates for %s = %s"
- (calendar-date-string death-date)
- (let ((calendar-month-name-array
- (if (hebrew-calendar-leap-year-p h-year)
- calendar-hebrew-month-name-array-leap-year
- calendar-hebrew-month-name-array-common-year)))
- (calendar-date-string h-date nil t))))
- (erase-buffer)
- (goto-char (point-min))
- (calendar-for-loop i from start-year to end-year do
- (insert
- (calendar-date-string
- (calendar-gregorian-from-absolute
- (hebrew-calendar-yahrzeit
- h-date
- (extract-calendar-year
- (calendar-hebrew-from-absolute
- (calendar-absolute-from-gregorian (list 1 1 i))))))) "\n"))
- (goto-char (point-min))
- (set-buffer-modified-p nil)
- (setq buffer-read-only t)
- (display-buffer yahrzeit-buffer)
- (message "Computing yahrzeits...done")))
+ (calendar-string-spread (list str) ?- (frame-width))))
-(defun calendar-astro-date-string (&optional date)
- "String of astronomical (Julian) day number of afternoon of Gregorian DATE.
-Defaults to today's date if DATE is not given."
- (int-to-string
- (+ 1721425 (calendar-absolute-from-gregorian
- (or date (calendar-current-date))))))
-
-(defun calendar-print-astro-day-number ()
- "Show astronomical (Julian) day number of afternoon on date shown by cursor."
- (interactive)
- (message
- "Astronomical (Julian) day number after noon UTC: %s"
- (calendar-astro-date-string (calendar-cursor-to-date t))))
-
-(defun calendar-goto-astro-day-number (daynumber &optional noecho)
- "Move cursor to astronomical (Julian) DAYNUMBER.
-Echo astronomical (Julian) day number unless NOECHO is t."
- (interactive (list (calendar-read
- "Astronomical (Julian) day number (>1721425): "
- '(lambda (x) (> x 1721425)))))
- (calendar-goto-date (calendar-gregorian-from-absolute (- daynumber 1721425)))
- (or noecho (calendar-print-astro-day-number)))
+(defun calendar-mod (m n)
+ "Non-negative remainder of M/N with N instead of 0."
+ (1+ (mod (1- m) n)))
(run-hooks 'calendar-load-hook)
(provide 'calendar)
+;;; Local variables:
+;;; byte-compile-dynamic: t
+;;; End:
+
;;; calendar.el ends here
HCoop / bpt / emacs.git / blobdiff