@c This is part of the Emacs manual.
@c Copyright (C) 1985, 1986, 1987, 1993, 1994, 1995, 1997, 2000, 2001,
-@c 2005 Free Software Foundation, Inc.
+@c 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
@c See file emacs.texi for copying conditions.
@node Calendar/Diary, Gnus, Dired, Top
@chapter The Calendar and the Diary
calendar features that are independent of any particular date. To exit
the calendar, type @kbd{q}.
-The basic features of the Calendar/Diary are described here.
+@iftex
+ This chapter describes the basic calendar features.
@inforef{Advanced Calendar/Diary Usage,, emacs-xtra}, for information
about more specialized features.
+@end iftex
@menu
* Calendar Motion:: Moving through the calendar; selecting a date.
* Scroll Calendar:: Bringing earlier or later months onto the screen.
* Counting Days:: How many days are there between two dates?
* General Calendar:: Exiting or recomputing the calendar.
-* LaTeX Calendar:: Print a calendar using LaTeX.
+* Writing Calendar Files:: Writing calendars to files of various formats.
* Holidays:: Displaying dates of holidays.
* Sunrise/Sunset:: Displaying local times of sunrise and sunset.
* Lunar Phases:: Displaying phases of the moon.
* Importing Diary:: Converting diary events to/from other formats.
* Daylight Savings:: How to specify when daylight savings time is active.
* Time Intervals:: Keeping track of time intervals.
+@ifnottex
+* Advanced Calendar/Diary Usage:: Advanced Calendar/Diary customization.
+@end ifnottex
@end menu
@node Calendar Motion
@section Movement in the Calendar
@cindex moving inside the calendar
- Calendar mode lets you move through the calendar in logical units of
-time such as days, weeks, months, and years. If you move outside the
-three months originally displayed, the calendar display ``scrolls''
-automatically through time to make the selected date visible. Moving to
-a date lets you view its holidays or diary entries, or convert it to other
-calendars; moving longer time periods is also useful simply to scroll the
-calendar.
+ Calendar mode provides commands to move through the calendar in
+logical units of time such as days, weeks, months, and years. If you
+move outside the three months originally displayed, the calendar
+display ``scrolls'' automatically through time to make the selected
+date visible. Moving to a date lets you view its holidays or diary
+entries, or convert it to other calendars; moving by long time periods
+is also useful simply to scroll the calendar.
@menu
* Calendar Unit Motion:: Moving by days, weeks, months, and years.
@findex calendar-forward-year
The commands for motion by months and years work like those for
weeks, but move a larger distance. The month commands @kbd{M-@}} and
-@kbd{M-@{} move forward or backward by an entire month's time. The
-year commands @kbd{C-x ]} and @w{@kbd{C-x [}} move forward or backward a
+@kbd{M-@{} move forward or backward by an entire month. The year
+commands @kbd{C-x ]} and @w{@kbd{C-x [}} move forward or backward a
whole year.
The easiest way to remember these commands is to consider months and
-years analogous to paragraphs and pages of text, respectively. But the
-commands themselves are not quite analogous. The ordinary Emacs paragraph
-commands move to the beginning or end of a paragraph, whereas these month
-and year commands move by an entire month or an entire year, which usually
-involves skipping across the end of a month or year.
+years analogous to paragraphs and pages of text, respectively. But
+the commands themselves are not quite analogous. The ordinary Emacs
+paragraph commands move to the beginning or end of a paragraph,
+whereas these month and year commands move by an entire month or an
+entire year, keeping the same date within the month or year.
All these commands accept a numeric argument as a repeat count.
For convenience, the digit keys and the minus sign specify numeric
To display the number of days elapsed since the start of the year, or
the number of days remaining in the year, type the @kbd{p d} command
(@code{calendar-print-day-of-year}). This displays both of those
-numbers in the echo area. The number of days elapsed includes the
-selected date. The number of days remaining does not include that
+numbers in the echo area. The count of days elapsed includes the
+selected date. The count of days remaining does not include that
date.
@kindex C-c C-l @r{(Calendar mode)}
(If a frame contains a dedicated calendar window, exiting from the
calendar iconifies that frame.)
-@node LaTeX Calendar
-@section LaTeX Calendar
-@cindex calendar and La@TeX{}
+@node Writing Calendar Files
+@section Writing Calendar Files
+
+ These packages produce files of various formats containing calendar
+and diary entries, for display purposes.
+
+@cindex calendar and HTML
+ The Calendar HTML commands produce files of HTML code that contain
+calendar and diary entries. Each file applies to one month, and has a
+name of the format @file{@var{yyyy}-@var{mm}.html}, where @var{yyyy} and
+@var{mm} are the four-digit year and two-digit month, respectively. The
+variable @code{cal-html-directory} specifies the default output
+directory for the HTML files.
+
+@vindex cal-html-css-default
+ Diary entries enclosed by @code{<} and @code{>} are interpreted as
+HTML tags (for example: this is a diary entry with <font
+color=''red''>some red text</font>). You can change the overall
+appearance of the displayed HTML pages (for example, the color of
+various page elements, header styles) via a stylesheet @file{cal.css} in
+the directory containing the HTML files (see the value of the variable
+@code{cal-html-css-default} for relevant style settings).
+
+@kindex t @r{(Calendar mode)}
+@table @kbd
+@item H m
+Generate a one-month calendar (@code{cal-html-cursor-month}).
+@item H y
+Generate a calendar file for each month of a year, as well as an index
+page (@code{cal-html-cursor-year}). By default, this command writes
+files to a @var{yyyy} subdirectory - if this is altered some hyperlinks
+between years will not work.
+@end table
+
+ If the variable @code{cal-html-print-day-number-flag} is
+non-@code{nil}, then the monthly calendars show the day-of-the-year
+number. The variable @code{cal-html-year-index-cols} specifies the
+number of columns in the yearly index page.
- The Calendar La@TeX{} commands produce a buffer of La@TeX{} code that
+@cindex calendar and La@TeX{}
+ The Calendar La@TeX{} commands produce a buffer of La@TeX{} code that
prints as a calendar. Depending on the command you use, the printed
calendar covers the day, week, month or year that point is in.
@code{nil}), diary entries are included also (in weekly and monthly
calendars only). If the variable @code{cal-tex-rules} is non-@code{nil}
(the default is @code{nil}), the calendar displays ruled pages
-in styles that have sufficient room.
+in styles that have sufficient room. You can use the variable
+@code{cal-tex-preamble-extra} to insert extra La@TeX{} commands in the
+preamble of the generated document if you need to.
@node Holidays
@section Holidays
click on that date with @kbd{Mouse-2} and then choose @kbd{Holidays}
from the menu that appears. Either way, this displays the holidays for
that date, in the echo area if they fit there, otherwise in a separate
-window. If the variable @code{view-calendar-holidays-initially} is
-non-@code{nil}, creating the calendar displays holidays in this way.
+window.
@kindex x @r{(Calendar mode)}
@findex mark-calendar-holidays
To view the distribution of holidays for all the dates shown in the
calendar, use the @kbd{x} command. This displays the dates that are
holidays in a different face (or places a @samp{*} after these dates, if
-display with multiple faces is not available). @inforef{Calendar
-Customizing, calendar-holiday-marker, emacs-xtra}. The command applies
-both to the currently visible months and to other months that
-subsequently become visible by scrolling. To turn marking off and erase
-the current marks, type @kbd{u}, which also erases any diary marks
-(@pxref{Diary}). If the variable @code{mark-holidays-in-calendar} is
-non-@code{nil}, creating or updating the calendar marks holidays
-automatically.
+display with multiple faces is not available).
+@iftex
+@inforef{Calendar Customizing, calendar-holiday-marker, emacs-xtra}.
+@end iftex
+@ifnottex
+@xref{Calendar Customizing, calendar-holiday-marker}.
+@end ifnottex
+ The command applies both to the currently visible months and to
+other months that subsequently become visible by scrolling. To turn
+marking off and erase the current marks, type @kbd{u}, which also
+erases any diary marks (@pxref{Diary}). If the variable
+@code{mark-holidays-in-calendar} is non-@code{nil}, creating or
+updating the calendar marks holidays automatically.
@kindex a @r{(Calendar mode)}
@findex list-calendar-holidays
@findex holidays
The command @kbd{M-x holidays} displays the list of holidays for the
current month and the preceding and succeeding months; this works even
-if you don't have a calendar window. If you want the list of holidays
-centered around a different month, use @kbd{C-u M-x holidays}, which
-prompts for the month and year.
+if you don't have a calendar window. If the variable
+@code{view-calendar-holidays-initially} is non-@code{nil}, creating
+the calendar displays holidays in this way. If you want the list of
+holidays centered around a different month, use @kbd{C-u M-x
+holidays}, which prompts for the month and year.
The holidays known to Emacs include United States holidays and the
major Christian, Jewish, and Islamic holidays; also the solstices and
@table @kbd
@item d
Display all diary entries for the selected date
-(@code{view-diary-entries}).
+(@code{diary-view-entries}).
@item Mouse-2 Diary
Display all diary entries for the date you click on.
@item s
-Display the entire diary file (@code{show-all-diary-entries}).
+Display the entire diary file (@code{diary-show-all-entries}).
@item m
Mark all visible dates that have diary entries
(@code{mark-diary-entries}).
@end table
@kindex d @r{(Calendar mode)}
-@findex view-diary-entries
+@findex diary-view-entries
@vindex view-diary-entries-initially
Displaying the diary entries with @kbd{d} shows in a separate window
the diary entries for the selected date in the calendar. The mode line
@kbd{Mouse-2} on the date, and then choose @kbd{Diary entries} from
the menu that appears. If the variable
@code{view-diary-entries-initially} is non-@code{nil}, creating the
-calendar also lists diary entries for the current date (provided the
+calendar lists the diary entries for the current date (provided the
current date is visible).
@kindex m @r{(Calendar mode)}
To get a broader view of which days are mentioned in the diary, use
the @kbd{m} command. This displays the dates that have diary entries in
a different face (or places a @samp{+} after these dates, if display
-with multiple faces is not available). @inforef{Calendar Customizing,
-diary-entry-marker, emacs-xtra}. The command applies both to the
-currently visible months and to other months that subsequently become
-visible by scrolling. To turn marking off and erase the current marks,
-type @kbd{u}, which also turns off holiday marks (@pxref{Holidays}).
-If the variable @code{mark-diary-entries-in-calendar} is
-non-@code{nil}, creating or updating the calendar marks diary dates
-automatically.
+with multiple faces is not available).
+@iftex
+@inforef{Calendar Customizing, diary-entry-marker, emacs-xtra}.
+@end iftex
+@ifnottex
+@xref{Calendar Customizing, diary-entry-marker}.
+@end ifnottex
+ The command applies both to the currently visible months and to
+other months that subsequently become visible by scrolling. To turn
+marking off and erase the current marks, type @kbd{u}, which also
+turns off holiday marks (@pxref{Holidays}). If the variable
+@code{mark-diary-entries-in-calendar} is non-@code{nil}, creating or
+updating the calendar marks diary dates automatically.
@kindex s @r{(Calendar mode)}
-@findex show-all-diary-entries
+@findex diary-show-all-entries
To see the full diary file, rather than just some of the entries, use
the @kbd{s} command.
The command @kbd{M-x diary} displays the diary entries for the current
date, independently of the calendar display, and optionally for the next
few days as well; the variable @code{number-of-diary-entries} specifies
-how many days to include. @inforef{Diary Customizing,, emacs-xtra}.
+how many days to include.
+@iftex
+@inforef{Diary Customizing,, emacs-xtra}.
+@end iftex
+@ifnottex
+@xref{Diary Customizing, number-of-diary-entries}.
+@end ifnottex
If you put @code{(diary)} in your @file{.emacs} file, this
automatically displays a window with the day's diary entries, when you
visible line cannot cause problems, but editing at the end of a line may
not do what you expect. Deleting a line may delete other invisible
entries that follow it. Before editing the diary, it is best to display
-the entire file with @kbd{s} (@code{show-all-diary-entries}).
+the entire file with @kbd{s} (@code{diary-show-all-entries}).
@node Date Formats
@subsection Date Formats
If you prefer the European style of writing dates---in which the day
comes before the month---type @kbd{M-x european-calendar} while in the
calendar, or set the variable @code{european-calendar-style} to @code{t}
-@emph{before} using any calendar or diary command. This mode interprets
-all dates in the diary in the European manner, and also uses European
-style for displaying diary dates. (Note that there is no comma after
-the @var{monthname} in the European style.) To go back to the (default)
-American style of writing dates, type @kbd{M-x american-calendar}.
+with @kbd{M-x customize}, or @emph{before} using any calendar or diary
+command. This mode interprets all dates in the diary in the European
+manner, and also uses European style for displaying diary dates. (Note
+that there is no comma after the @var{monthname} in the European style.)
+To go back to the (default) American style of writing dates, type
+@kbd{M-x american-calendar}.
You can use the name of a day of the week as a generic date which
applies to any date falling on that day of the week. You can abbreviate
specifying the name of a face or a single-character string to use when
marking the entry in the calendar. Most generally, sexp diary entries
can perform arbitrary computations to determine when they apply.
+@iftex
@inforef{Sexp Diary Entries,, emacs-xtra}.
+@end iftex
+@ifnottex
+@inforef{Sexp Diary Entries}.
+@end ifnottex
@node Appointments
@section Appointments
minutes beforehand that that appointment is pending. Emacs alerts you
to the appointment by displaying a message in your chosen format, as
specified by the variable @code{appt-display-format}. If the value of
-@code{appt-audible} is non-@code{nil}, an audible reminder is also
-given. In addition, if @code{appt-display-mode-line} is non-@code{nil},
-Emacs displays the number of minutes to the appointment on the mode
-line.
+@code{appt-audible} is non-@code{nil}, the warning includes an audible
+reminder. In addition, if @code{appt-display-mode-line} is
+non-@code{nil}, Emacs displays the number of minutes to the
+appointment on the mode line.
@vindex appt-display-duration
@vindex appt-disp-window-function
respectively.
@findex appt-activate
- To enable appointment notification, call the function
-@code{appt-activate} with a positive argument. This sets up an
-appointment list for today from the diary file, giving all diary entries
-found with recognizable times of day, and reminds you just before each
-of them. Calling @code{appt-activate} with a negative argument disables
-the appointment package. With no argument, it toggles.
+ To enable appointment notification, use the command @kbd{M-x
+appt-activate}. With a positive argument, it enables notification;
+with a negative argument, it disables notification; with no argument,
+it toggles. Enabling notification also sets up an appointment list
+for today from the diary file, giving all diary entries found with
+recognizable times of day, and reminds you just before each of them.
For example, suppose the diary file contains these lines:
@vindex appt-message-warning-time
@noindent
-Then on Mondays, you will be reminded at around 9:20am about your coffee
-break and at around 11:50am about lunch. How many minutes in advance you
-are first warned is determined by the value of
-@code{appt-message-warning-time}.
+Then on Mondays, you will be reminded at around 9:20am about your
+coffee break and at around 11:50am about lunch. The variable
+@code{appt-message-warning-time} specifies how many minutes in advance
+to warn you; its default value is 12 (12 minutes).
You can write times in am/pm style (with @samp{12:00am} standing
for midnight and @samp{12:00pm} standing for noon), or 24-hour
of lines if they are to be recognized.
@vindex appt-display-diary
- Emacs updates the appointments list from the diary file automatically
-just after midnight. An update can be forced at any time by
-re-activating the appointment package. Both these actions also display
-the day's diary buffer, unless you set @code{appt-display-diary} to
-@code{nil}. The appointments list is also updated whenever the
-diary file is saved.
+ Emacs updates the appointments list from the diary file
+automatically just after midnight. You can force an update at any
+time by re-enabling appointment notification. Both these actions also
+display the day's diary buffer, unless you set
+@code{appt-display-diary} to @code{nil}. The appointments list is
+also updated whenever the diary file is saved.
@findex appt-add
@findex appt-delete
2445---Internet Calendaring and Scheduling Core Object Specification
(iCalendar)'' (as well as the earlier vCalendar format).
- Importing works for ``ordinary'' (i.e. non-recurring) events, but (at
-present) may not work correctly (if at all) for recurring events.
-Exporting of diary files into iCalendar files should work correctly for
-most diary entries. Please note that @file{icalendar.el} is work in
-progress, so usage may evolve in future.
+ Importing works for ``ordinary'' (i.e. non-recurring) events, but
+(at present) may not work correctly (if at all) for recurring events.
+Exporting of diary files into iCalendar files should work correctly
+for most diary entries. This feature is a work in progress, so the
+commands may evolve in future.
@findex icalendar-import-buffer
The command @code{icalendar-import-buffer} extracts
and adds the results to an Emacs diary file. For example:
@example
-(icalendar-import-file "/here/is/calendar.ics" "/there/goes/ical-diary")
+(icalendar-import-file "/here/is/calendar.ics"
+ "/there/goes/ical-diary")
@end example
@noindent
You can use an @code{#include} directive to add the import file contents
-to the main diary file, if these are distinct. @inforef{Fancy Diary
-Display,, emacs-xtra}.
+to the main diary file, if these are different files.
+@iftex
+@inforef{Fancy Diary Display,, emacs-xtra}.
+@end iftex
+@ifnottex
+@xref{Fancy Diary Display}.
+@end ifnottex
+
@findex icalendar-export-file, icalendar-export-region
Use @code{icalendar-export-file} to interactively export an entire
file, mark the relevant area, and call @code{icalendar-export-region}.
In both cases the result is appended to the target file.
-
@node Daylight Savings
@section Daylight Savings Time
@cindex daylight savings time
@cindex timeclock
The timeclock feature adds up time intervals, so you can (for
-instance) keep track of how much time you spend working.
+instance) keep track of how much time you spend working on particular
+projects.
@findex timeclock-in
@findex timeclock-out
@code{t}, or invoke the @kbd{M-x timeclock-modeline-display} command.
@vindex timeclock-ask-before-exiting
- Terminating the current Emacs session might or might not mean that you
-have stopped working on the project and, by default, Emacs queries this.
-You can, however, set the value of the variable
+ Terminating the current Emacs session might or might not mean that
+you have stopped working on the project and, by default, Emacs asks
+you. You can, however, set the value of the variable
@code{timeclock-ask-before-exiting} to @code{nil} (via @kbd{M-x
-customize}) to avoid this behavior; then, only an explicit @kbd{M-x
+customize}) to avoid the question; then, only an explicit @kbd{M-x
timeclock-out} or @kbd{M-x timeclock-change} will tell Emacs that the
current interval is over.
should run the command @kbd{M-x timeclock-reread-log} to update the
data in Emacs from the file.
+@ifnottex
+@include cal-xtra.texi
+@end ifnottex
+
@ignore
arch-tag: 4531ef09-9df3-449d-9c52-2b5a4a337f92
@end ignore