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640 lines
21 KiB
EmacsLisp
640 lines
21 KiB
EmacsLisp
;;; appt.el --- appointment notification functions.
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;; Copyright (C) 1989, 1990, 1994, 1998 Free Software Foundation, Inc.
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;; Author: Neil Mager <neilm@juliet.ll.mit.edu>
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;; Maintainer: FSF
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;; Keywords: calendar
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;;; Commentary:
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;;
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;; appt.el - visible and/or audible notification of
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;; appointments from ~/diary file.
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;;
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;;;
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;;; Thanks to Edward M. Reingold for much help and many suggestions,
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;;; And to many others for bug fixes and suggestions.
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;;;
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;;;
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;;; This functions in this file will alert the user of a
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;;; pending appointment based on their diary file.
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;;;
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;;; A message will be displayed in the mode line of the Emacs buffer
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;;; and (if you request) the terminal will beep and display a message
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;;; from the diary in the mini-buffer, or you can choose to
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;;; have a message displayed in a new buffer.
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;;;
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;;; The variable `appt-message-warning-time' allows the
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;;; user to specify how much notice they want before the appointment. The
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;;; variable `appt-issue-message' specifies whether the user wants
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;;; to to be notified of a pending appointment.
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;;;
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;;; In order to use the appt package, you only need
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;;; to load it---provided you have appointments.
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;;;
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;;; Before that, you can also set some options if you want
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;;; (setq view-diary-entries-initially t)
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;;; (setq appt-issue-message t)
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;;;
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;;; This is an example of what can be in your diary file:
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;;; Monday
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;;; 9:30am Coffee break
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;;; 12:00pm Lunch
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;;;
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;;; Based upon the above lines in your .emacs and diary files,
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;;; the calendar and diary will be displayed when you enter
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;;; Emacs and your appointments list will automatically be created.
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;;; You will then be reminded at 9:20am about your coffee break
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;;; and at 11:50am to go to lunch.
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;;;
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;;; Use describe-function on appt-check for a description of other variables
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;;; that can be used to personalize the notification system.
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;;;
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;;; In order to add or delete items from todays list, use appt-add
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;;; and appt-delete.
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;;;
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;;; Additionally, the appointments list is recreated automatically
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;;; at 12:01am for those who do not logout every day or are programming
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;;; late.
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;;;
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;;; Brief internal description - Skip this if your not interested!
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;;;
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;;; The function appt-make-list creates the appointments list which appt-check
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;;; reads. This is all done automatically.
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;;; It is invoked from the function list-diary-entries.
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;;;
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;;; You can change the way the appointment window is created/deleted by
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;;; setting the variables
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;;;
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;;; appt-disp-window-function
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;;; and
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;;; appt-delete-window-function
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;;;
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;;; For instance, these variables can be set to functions that display
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;;; appointments in pop-up frames, which are lowered or iconified after
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;;; appt-display-interval minutes.
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;;;
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;;; Code:
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;; Make sure calendar is loaded when we compile this.
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(require 'calendar)
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(provide 'appt)
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;;;###autoload
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(defcustom appt-issue-message t
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"*Non-nil means check for appointments in the diary buffer.
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To be detected, the diary entry must have the time
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as the first thing on a line."
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:type 'boolean
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:group 'appt)
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;;;###autoload
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(defcustom appt-message-warning-time 12
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"*Time in minutes before an appointment that the warning begins."
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:type 'integer
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:group 'appt)
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;;;###autoload
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(defcustom appt-audible t
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"*Non-nil means beep to indicate appointment."
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:type 'boolean
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:group 'appt)
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;;;###autoload
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(defcustom appt-visible t
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"*Non-nil means display appointment message in echo area."
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:type 'boolean
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:group 'appt)
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;;;###autoload
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(defcustom appt-display-mode-line t
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"*Non-nil means display minutes to appointment and time on the mode line."
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:type 'boolean
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:group 'appt)
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;;;###autoload
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(defcustom appt-msg-window t
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"*Non-nil means display appointment message in another window."
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:type 'boolean
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:group 'appt)
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;;;###autoload
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(defcustom appt-display-duration 10
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"*The number of seconds an appointment message is displayed."
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:type 'integer
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:group 'appt)
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;;;###autoload
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(defcustom appt-display-diary t
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"*Non-nil means to display the next days diary on the screen.
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This will occur at midnight when the appointment list is updated."
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:type 'boolean
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:group 'appt)
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(defvar appt-time-msg-list nil
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"The list of appointments for today.
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Use `appt-add' and `appt-delete' to add and delete appointments from list.
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The original list is generated from the today's `diary-entries-list'.
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The number before each time/message is the time in minutes from midnight.")
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(defconst appt-max-time 1439
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"11:59pm in minutes - number of minutes in a day minus 1.")
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(defcustom appt-display-interval 3
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"*Number of minutes to wait between checking the appointment list."
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:type 'integer
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:group 'appt)
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(defvar appt-buffer-name " *appt-buf*"
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"Name of the appointments buffer.")
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(defvar appt-disp-window-function 'appt-disp-window
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"Function called to display appointment window.")
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(defvar appt-delete-window-function 'appt-delete-window
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"Function called to remove appointment window and buffer.")
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(defvar appt-mode-string nil
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"String being displayed in the mode line saying you have an appointment.
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The actual string includes the amount of time till the appointment.")
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(defvar appt-prev-comp-time nil
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"Time of day (mins since midnight) at which we last checked appointments.")
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(defvar appt-now-displayed nil
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"Non-nil when we have started notifying about a appointment that is near.")
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(defvar appt-display-count nil)
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(defun appt-check ()
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"Check for an appointment and update the mode line.
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Note: the time must be the first thing in the line in the diary
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for a warning to be issued.
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The format of the time can be either 24 hour or am/pm.
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Example:
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02/23/89
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18:00 Dinner
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Thursday
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11:45am Lunch meeting.
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Appointments are checked every `appt-display-interval' minutes.
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The following variables control appointment notification:
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`appt-issue-message'
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If t, the diary buffer is checked for appointments.
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`appt-message-warning-time'
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Variable used to determine if appointment message
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should be displayed.
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`appt-audible'
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Variable used to determine if appointment is audible.
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Default is t.
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`appt-visible'
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Variable used to determine if appointment message should be
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displayed in the mini-buffer. Default is t.
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`appt-msg-window'
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Variable used to determine if appointment message
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should temporarily appear in another window. Mutually exclusive
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to `appt-visible'.
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`appt-display-duration'
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The number of seconds an appointment message
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is displayed in another window.
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`appt-disp-window-function'
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Function called to display appointment window. You can customize
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appt.el by setting this variable to a function different from the
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one provided with this package.
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`appt-delete-window-function'
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Function called to remove appointment window and buffer. You can
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customize appt.el by setting this variable to a function different
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from the one provided with this package."
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(let* ((min-to-app -1)
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(new-time "")
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(prev-appt-mode-string appt-mode-string)
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(prev-appt-display-count (or appt-display-count 0))
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;; Non-nil means do a full check for pending appointments
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;; and display in whatever ways the user has selected.
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;; When no appointment is being displayed,
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;; we always do a full check.
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(full-check
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(or (not appt-now-displayed)
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;; This is true every appt-display-interval minutes.
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(= 0 (mod prev-appt-display-count appt-display-interval))))
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;; Non-nil means only update the interval displayed in the mode line.
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(mode-line-only
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(and (not full-check) appt-now-displayed)))
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(when (or full-check mode-line-only)
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(save-excursion
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;; Get the current time and convert it to minutes
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;; from midnight. ie. 12:01am = 1, midnight = 0.
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(let* ((now (decode-time))
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(cur-hour (nth 2 now))
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(cur-min (nth 1 now))
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(cur-comp-time (+ (* cur-hour 60) cur-min)))
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;; At the first check in any given day, update our
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;; appointments to today's list.
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(if (or (null appt-prev-comp-time)
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(< cur-comp-time appt-prev-comp-time))
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(condition-case nil
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(progn
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(if (and view-diary-entries-initially appt-display-diary)
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(diary)
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(let ((diary-display-hook 'appt-make-list))
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(diary))))
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(error nil)))
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(setq appt-prev-comp-time cur-comp-time)
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(setq appt-mode-string nil)
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(setq appt-display-count nil)
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;; If there are entries in the list, and the
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;; user wants a message issued,
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;; get the first time off of the list
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;; and calculate the number of minutes until the appointment.
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(if (and appt-issue-message appt-time-msg-list)
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(let ((appt-comp-time (car (car (car appt-time-msg-list)))))
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(setq min-to-app (- appt-comp-time cur-comp-time))
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(while (and appt-time-msg-list
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(< appt-comp-time cur-comp-time))
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(setq appt-time-msg-list (cdr appt-time-msg-list))
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(if appt-time-msg-list
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(setq appt-comp-time
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(car (car (car appt-time-msg-list))))))
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;; If we have an appointment between midnight and
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;; 'appt-message-warning-time' minutes after midnight,
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;; we must begin to issue a message before midnight.
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;; Midnight is considered 0 minutes and 11:59pm is
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;; 1439 minutes. Therefore we must recalculate the minutes
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;; to appointment variable. It is equal to the number of
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;; minutes before midnight plus the number of
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;; minutes after midnight our appointment is.
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(if (and (< appt-comp-time appt-message-warning-time)
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(> (+ cur-comp-time appt-message-warning-time)
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appt-max-time))
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(setq min-to-app (+ (- (1+ appt-max-time) cur-comp-time))
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appt-comp-time))
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;; issue warning if the appointment time is
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;; within appt-message-warning time
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(when (and (<= min-to-app appt-message-warning-time)
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(>= min-to-app 0))
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(setq appt-now-displayed t)
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(setq appt-display-count
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(1+ prev-appt-display-count))
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(unless mode-line-only
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(if appt-msg-window
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(progn
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(setq new-time (format-time-string "%a %b %e "
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(current-time)))
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(funcall
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appt-disp-window-function
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min-to-app new-time
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(car (cdr (car appt-time-msg-list))))
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(run-at-time
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(format "%d sec" appt-display-duration)
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nil
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appt-delete-window-function))
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;;; else
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(if appt-visible
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(message "%s"
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(car (cdr (car appt-time-msg-list)))))
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(if appt-audible
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(beep 1))))
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(when appt-display-mode-line
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(setq appt-mode-string
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(concat " App't in " min-to-app " min. ")))
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;; When an appointment is reached,
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;; delete it from the list.
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;; Reset the count to 0 in case we display another
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;; appointment on the next cycle.
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(if (= min-to-app 0)
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(setq appt-time-msg-list
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(cdr appt-time-msg-list)
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appt-display-count nil)))))
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;; If we have changed the mode line string,
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;; redisplay all mode lines.
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(and appt-display-mode-line
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(not (equal appt-mode-string
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prev-appt-mode-string))
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(progn
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(force-mode-line-update t)
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;; If the string now has a notification,
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;; redisplay right now.
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(if appt-mode-string
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(sit-for 0)))))))))
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;; Display appointment message in a separate buffer.
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(defun appt-disp-window (min-to-app new-time appt-msg)
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(require 'electric)
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;; Make sure we're not in the minibuffer
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;; before splitting the window.
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(if (equal (selected-window) (minibuffer-window))
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(if (other-window 1)
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(select-window (other-window 1))
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(if window-system
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(select-frame (other-frame 1)))))
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(let* ((this-buffer (current-buffer))
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(this-window (selected-window))
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(appt-disp-buf (set-buffer (get-buffer-create appt-buffer-name))))
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(if (cdr (assq 'unsplittable (frame-parameters)))
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;; In an unsplittable frame, use something somewhere else.
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(display-buffer appt-disp-buf)
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(unless (or (special-display-p (buffer-name appt-disp-buf))
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(same-window-p (buffer-name appt-disp-buf)))
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;; By default, split the bottom window and use the lower part.
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(appt-select-lowest-window)
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(split-window))
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(pop-to-buffer appt-disp-buf))
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(setq mode-line-format
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(concat "-------------------- Appointment in "
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min-to-app " minutes. " new-time " %-"))
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(erase-buffer)
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(insert-string appt-msg)
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(shrink-window-if-larger-than-buffer (get-buffer-window appt-disp-buf t))
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(set-buffer-modified-p nil)
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(raise-frame (selected-frame))
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(select-window this-window)
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(if appt-audible
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(beep 1))))
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(defun appt-delete-window ()
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"Function called to undisplay appointment messages.
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Usually just deletes the appointment buffer."
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(let ((window (get-buffer-window appt-buffer-name t)))
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(and window
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(or (and (fboundp 'frame-root-window)
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(eq window (frame-root-window (window-frame window))))
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(delete-window window))))
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(kill-buffer appt-buffer-name)
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(if appt-audible
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(beep 1)))
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;; Select the lowest window on the frame.
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(defun appt-select-lowest-window ()
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(let* ((lowest-window (selected-window))
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(bottom-edge (car (cdr (cdr (cdr (window-edges))))))
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(last-window (previous-window))
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(window-search t))
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(while window-search
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(let* ((this-window (next-window))
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(next-bottom-edge (car (cdr (cdr (cdr
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(window-edges this-window)))))))
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(if (< bottom-edge next-bottom-edge)
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(progn
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(setq bottom-edge next-bottom-edge)
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(setq lowest-window this-window)))
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(select-window this-window)
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(if (eq last-window this-window)
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(progn
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(select-window lowest-window)
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(setq window-search nil)))))))
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;;;###autoload
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(defun appt-add (new-appt-time new-appt-msg)
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"Add an appointment for the day at TIME and issue MESSAGE.
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The time should be in either 24 hour format or am/pm format."
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(interactive "sTime (hh:mm[am/pm]): \nsMessage: ")
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(if (string-match "[0-9]?[0-9]:[0-9][0-9]\\(am\\|pm\\)?" new-appt-time)
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nil
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(error "Unacceptable time-string"))
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(let* ((appt-time-string (concat new-appt-time " " new-appt-msg))
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(appt-time (list (appt-convert-time new-appt-time)))
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(time-msg (cons appt-time (list appt-time-string))))
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(setq appt-time-msg-list (append appt-time-msg-list
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(list time-msg)))
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(setq appt-time-msg-list (appt-sort-list appt-time-msg-list))))
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;;;###autoload
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(defun appt-delete ()
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"Delete an appointment from the list of appointments."
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(interactive)
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(let* ((tmp-msg-list appt-time-msg-list))
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(while tmp-msg-list
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(let* ((element (car tmp-msg-list))
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(prompt-string (concat "Delete "
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(prin1-to-string (car (cdr element)))
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" from list? "))
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(test-input (y-or-n-p prompt-string)))
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(setq tmp-msg-list (cdr tmp-msg-list))
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(if test-input
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(setq appt-time-msg-list (delq element appt-time-msg-list)))))
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(appt-check)
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(message "")))
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;; Create the appointments list from todays diary buffer.
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;; The time must be at the beginning of a line for it to be
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;; put in the appointments list.
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;; 02/23/89
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;; 12:00pm lunch
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;; Wednesday
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;; 10:00am group meeting
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;; We assume that the variables DATE and NUMBER
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;; hold the arguments that list-diary-entries received.
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;; They specify the range of dates that the diary is being processed for.
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(eval-when-compile (defvar number)
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(defvar original-date)
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(defvar diary-entries-list))
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;;;###autoload
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(defun appt-make-list ()
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;; We have something to do if the range of dates that the diary is
|
|
;; considering includes the current date.
|
|
(if (and (not (calendar-date-compare
|
|
(list (calendar-current-date))
|
|
(list original-date)))
|
|
(calendar-date-compare
|
|
(list (calendar-current-date))
|
|
(list (calendar-gregorian-from-absolute
|
|
(+ (calendar-absolute-from-gregorian original-date)
|
|
number)))))
|
|
(save-excursion
|
|
;; Clear the appointments list, then fill it in from the diary.
|
|
(setq appt-time-msg-list nil)
|
|
(if diary-entries-list
|
|
|
|
;; Cycle through the entry-list (diary-entries-list)
|
|
;; looking for entries beginning with a time. If
|
|
;; the entry begins with a time, add it to the
|
|
;; appt-time-msg-list. Then sort the list.
|
|
|
|
(let ((entry-list diary-entries-list)
|
|
(new-time-string ""))
|
|
;; Skip diary entries for dates before today.
|
|
(while (and entry-list
|
|
(calendar-date-compare
|
|
(car entry-list) (list (calendar-current-date))))
|
|
(setq entry-list (cdr entry-list)))
|
|
;; Parse the entries for today.
|
|
(while (and entry-list
|
|
(calendar-date-equal
|
|
(calendar-current-date) (car (car entry-list))))
|
|
(let ((time-string (substring (prin1-to-string
|
|
(cadr (car entry-list))) 1 -1)))
|
|
|
|
(while (string-match
|
|
"[0-9]?[0-9]:[0-9][0-9]\\(am\\|pm\\)?.*"
|
|
time-string)
|
|
(let* ((appt-time-string (substring time-string
|
|
(match-beginning 0)
|
|
(match-end 0))))
|
|
|
|
(if (< (match-end 0) (length time-string))
|
|
(setq new-time-string (substring time-string
|
|
(+ (match-end 0) 1)
|
|
nil))
|
|
(setq new-time-string ""))
|
|
|
|
(string-match "[0-9]?[0-9]:[0-9][0-9]\\(am\\|pm\\)?"
|
|
time-string)
|
|
|
|
(let* ((appt-time (list (appt-convert-time
|
|
(substring time-string
|
|
(match-beginning 0)
|
|
(match-end 0)))))
|
|
(time-msg (cons appt-time
|
|
(list appt-time-string))))
|
|
(setq time-string new-time-string)
|
|
(setq appt-time-msg-list (append appt-time-msg-list
|
|
(list time-msg)))))))
|
|
(setq entry-list (cdr entry-list)))))
|
|
(setq appt-time-msg-list (appt-sort-list appt-time-msg-list))
|
|
|
|
;; Get the current time and convert it to minutes
|
|
;; from midnight. ie. 12:01am = 1, midnight = 0,
|
|
;; so that the elements in the list
|
|
;; that are earlier than the present time can
|
|
;; be removed.
|
|
|
|
(let* ((now (decode-time))
|
|
(cur-hour (nth 2 now))
|
|
(cur-min (nth 1 now))
|
|
(cur-comp-time (+ (* cur-hour 60) cur-min))
|
|
(appt-comp-time (car (car (car appt-time-msg-list)))))
|
|
|
|
(while (and appt-time-msg-list (< appt-comp-time cur-comp-time))
|
|
(setq appt-time-msg-list (cdr appt-time-msg-list))
|
|
(if appt-time-msg-list
|
|
(setq appt-comp-time (car (car (car appt-time-msg-list))))))))))
|
|
|
|
|
|
;;Simple sort to put the appointments list in order.
|
|
;;Scan the list for the smallest element left in the list.
|
|
;;Append the smallest element left into the new list, and remove
|
|
;;it from the original list.
|
|
(defun appt-sort-list (appt-list)
|
|
(let ((order-list nil))
|
|
(while appt-list
|
|
(let* ((element (car appt-list))
|
|
(element-time (car (car element)))
|
|
(tmp-list (cdr appt-list)))
|
|
(while tmp-list
|
|
(if (< element-time (car (car (car tmp-list))))
|
|
nil
|
|
(setq element (car tmp-list))
|
|
(setq element-time (car (car element))))
|
|
(setq tmp-list (cdr tmp-list)))
|
|
(setq order-list (append order-list (list element)))
|
|
(setq appt-list (delq element appt-list))))
|
|
order-list))
|
|
|
|
|
|
(defun appt-convert-time (time2conv)
|
|
"Convert hour:min[am/pm] format to minutes from midnight."
|
|
|
|
(let ((conv-time 0)
|
|
(hr 0)
|
|
(min 0))
|
|
|
|
(string-match ":[0-9][0-9]" time2conv)
|
|
(setq min (string-to-int
|
|
(substring time2conv
|
|
(+ (match-beginning 0) 1) (match-end 0))))
|
|
|
|
(string-match "[0-9]?[0-9]:" time2conv)
|
|
(setq hr (string-to-int
|
|
(substring time2conv
|
|
(match-beginning 0)
|
|
(match-end 0))))
|
|
|
|
;; convert the time appointment time into 24 hour time
|
|
|
|
(cond ((and (string-match "pm" time2conv) (< hr 12))
|
|
(setq hr (+ 12 hr)))
|
|
((and (string-match "am" time2conv) (= hr 12))
|
|
(setq hr 0)))
|
|
|
|
;; convert the actual time
|
|
;; into minutes for comparison
|
|
;; against the actual time.
|
|
|
|
(setq conv-time (+ (* hr 60) min))
|
|
conv-time))
|
|
|
|
(defvar appt-timer nil
|
|
"Timer used for diary appointment notifications (`appt-check').")
|
|
|
|
(unless appt-timer
|
|
(setq appt-timer (run-at-time t 60 'appt-check)))
|
|
|
|
(or global-mode-string (setq global-mode-string '("")))
|
|
(or (memq 'appt-mode-string global-mode-string)
|
|
(setq global-mode-string
|
|
(append global-mode-string '(appt-mode-string))))
|
|
|
|
;;; appt.el ends here
|