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-;; Appointment notification functions.
-;; Copyright (C) 1989, 1990 Free Software Foundation, Inc.
-
-;; This file is part of GNU Emacs.
-
-;; GNU Emacs is free software; you can redistribute it and/or modify
-;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation; either version 1, or (at your option)
-;; any later version.
-
-;; GNU Emacs is distributed in the hope that it will be useful,
-;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-;; 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.
-
-;;
-;; appt.el - visible and/or audible notification of
-;; appointments from ~/diary file generated from
-;; Edward M. Reingold's calendar.el.
-;;
-;; Version 2.1
-;;
-;; Comments, corrections, and improvements should be sent to
-;; Neil M. Mager
-;; Net <neilm@juliet.ll.mit.edu>
-;; Voice (617) 981-4803
-;;;
-;;; Thanks to Edward M. Reingold for much help and many suggestions,
-;;; And to many others for bug fixes and suggestions.
-;;;
-;;;
-;;; This functions in this file will alert the user of a
-;;; pending appointment based on their diary file.
-;;;
-;;;
-;;; ******* It is necessary to invoke 'display-time' ********
-;;; ******* and 'diary' for this to work properly. ********
-;;;
-;;; A message will be displayed in the mode line of the emacs buffer
-;;; and (if the user desires) the terminal will beep and display a message
-;;; from the diary in the mini-buffer, or the user may select to
-;;; have a message displayed in a new buffer.
-;;;
-;;; The variable 'appt-message-warning-time' allows the
-;;; user to specify how much notice they want before the appointment. The
-;;; variable 'appt-issue-message' specifies whether the user wants
-;;; to to be notified of a pending appointment.
-;;;
-;;; In order to use, the following should be in your .emacs file in addition to
-;;; creating a diary file and invoking calendar:
-;;;
-;;; Set some options
-;;; (setq view-diary-entries-initially t)
-;;; (setq appt-issue-message t)
-;;;
-;;; The following three lines are required:
-;;; (display-time)
-;;; (autoload 'appt-make-list "appt.el" nil t)
-;;; (setq diary-display-hook
-;;; (list 'appt-make-list 'prepare-fancy-diary-buffer))
-;;;
-;;;
-;;; This is an example of what can be in your diary file:
-;;; Monday
-;;; 9:30am Coffee break
-;;; 12:00pm Lunch
-;;;
-;;; Based upon the above lines in your .emacs and diary files,
-;;; the calendar and diary will be displayed when you enter
-;;; emacs and your appointments list will automatically be created.
-;;; You will then be reminded at 9:20am about your coffee break
-;;; and at 11:50am to go to lunch.
-;;;
-;;; Use describe-function on appt-check for a description of other variables
-;;; that can be used to personalize the notification system.
-;;;
-;;; In order to add or delete items from todays list, use appt-add
-;;; and appt-delete.
-;;;
-;;; Additionally, the appointments list is recreated automatically
-;;; at 12:01am for those who do not logout every day or are programming
-;;; late.
-;;;
-;;; Brief internal description - Skip this if your not interested!
-;;;
-;;; The function appt-check is run from the 'loadst' process which is started
-;;; by invoking (display-time). A temporary function below modifies
-;;; display-time-filter
-;;; (from original time.el) to include a hook which will invoke appt-check.
-;;; This will not be necessary in the next version of gnuemacs.
-;;;
-;;;
-;;; The function appt-make-list creates the appointments list which appt-check
-;;; reads. This is all done automatically.
-;;; It is invoked from the function list-diary-entries.
-;;;
-(defvar appt-issue-message t
- "*Non-nil means check for appointments in the diary buffer.
-To be detected, the diary entry must have the time
-as the first thing on a line.")
-
-(defvar appt-message-warning-time 10
- "*Time in minutes before an appointment that the warning begins.")
-
-(defvar appt-audible t
- "*Non-nil means beep to indicate appointment.")
-
-(defvar appt-visible t
- "*Non-nil means display appointment message in echo area.")
-
-(defvar appt-display-mode-line t
- "*Non-nil means display minutes to appointment and time on the mode line.")
-
-(defvar appt-msg-window t
- "*Non-nil means display appointment message in another window.")
-
-(defvar appt-display-duration 5
- "*The number of seconds an appointment message is displayed.")
-
-(defvar appt-display-diary t
- "*Non-nil means to display the next days diary on the screen.
-This will occur at midnight when the appointment list is updated.")
-
-(defvar appt-time-msg-list nil
- "The list of appointments for today.
-Use `appt-add' and `appt-delete' to add and delete appointments from list.
-The original list is generated from the today's `diary-entries-list'.
-The number before each time/message is the time in minutes from midnight.")
-
-(defconst max-time 1439
- "11:59pm in minutes - number of minutes in a day minus 1.")
-
-(defun appt-check ()
- "Check for an appointment and update the mode line.
-Note: the time must be the first thing in the line in the diary
-for a warning to be issued.
-
-The format of the time can be either 24 hour or am/pm.
-Example:
-
- 02/23/89
- 18:00 Dinner
-
- Thursday
- 11:45am Lunch meeting.
-
-The following variables control the action of the notification:
-
-appt-issue-message
- If T, the diary buffer is checked for appointments.
-
-appt-message-warning-time
- Variable used to determine if appointment message
- should be displayed.
-
-appt-audible
- Variable used to determine if appointment is audible.
- Default is t.
-
-appt-visible
- Variable used to determine if appointment message should be
- displayed in the mini-buffer. Default is t.
-
-appt-msg-window
- Variable used to determine if appointment message
- should temporarily appear in another window. Mutually exclusive
- to appt-visible.
-
-appt-display-duration
- The number of seconds an appointment message
- is displayed in another window.
-
-This function is run from the loadst process for display time.
-Therefore, you need to have `(display-time)' in your .emacs file."
-
-
- (let ((min-to-app -1)
- (new-time ""))
- (save-excursion
-
- ;; Get the current time and convert it to minutes
- ;; from midnight. ie. 12:01am = 1, midnight = 0.
-
- (let* ((cur-hour(string-to-int
- (substring (current-time-string) 11 13)))
- (cur-min (string-to-int
- (substring (current-time-string) 14 16)))
- (cur-comp-time (+ (* cur-hour 60) cur-min)))
-
- ;; If the time is 12:01am, we should update our
- ;; appointments to todays list.
-
- (if (= cur-comp-time 1)
- (if (and view-diary-entries-initially appt-display-diary)
- (diary)
- (let ((diary-display-hook 'appt-make-list))
- (diary))))
-
- ;; If there are entries in the list, and the
- ;; user wants a message issued
- ;; get the first time off of the list
- ;; and calculate the number of minutes until
- ;; the appointment.
-
- (if (and appt-issue-message appt-time-msg-list)
- (let ((appt-comp-time (car (car (car appt-time-msg-list)))))
- (setq min-to-app (- appt-comp-time cur-comp-time))
-
- (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))))))
-
- ;; If we have an appointment between midnight and
- ;; 'appt-message-warning-time' minutes after midnight,
- ;; we must begin to issue a message before midnight.
- ;; Midnight is considered 0 minutes and 11:59pm is
- ;; 1439 minutes. Therefore we must recalculate the minutes
- ;; to appointment variable. It is equal to the number of
- ;; minutes before midnight plus the number of
- ;; minutes after midnight our appointment is.
-
- (if (and (< appt-comp-time appt-message-warning-time)
- (> (+ cur-comp-time appt-message-warning-time)
- max-time))
- (setq min-to-app (+ (- (1+ max-time) cur-comp-time))
- appt-comp-time))
-
- ;; issue warning if the appointment time is
- ;; within appt-message-warning time
-
- (if (and (<= min-to-app appt-message-warning-time)
- (>= min-to-app 0))
- (progn
- (if appt-msg-window
- (progn
- (string-match
- "[0-9]?[0-9]:[0-9][0-9]\\(am\\|pm\\)?"
- display-time-string)
-
- (setq new-time (substring display-time-string
- (match-beginning 0)
- (match-end 0)))
- (appt-disp-window min-to-app new-time
- (car (cdr (car appt-time-msg-list)))))
- ;;; else
-
- (if appt-visible
- (message "%s"
- (car (cdr (car appt-time-msg-list)))))
-
- (if appt-audible
- (beep 1)))
-
- (if appt-display-mode-line
- (progn
- (string-match
- "[0-9]?[0-9]:[0-9][0-9]\\(am\\|pm\\)?"
- display-time-string)
-
- (setq new-time (substring display-time-string
- (match-beginning 0)
- (match-end 0)))
- (setq display-time-string
- (concat "App't in "
- min-to-app " min. " new-time " "))
-
- ;; force mode line updates - from time.el
-
- (save-excursion (set-buffer (other-buffer)))
- (set-buffer-modified-p (buffer-modified-p))
- (sit-for 0)))
-
- (if (= min-to-app 0)
- (setq appt-time-msg-list
- (cdr appt-time-msg-list)))))))))))
-
-
-;; Display appointment message in a separate buffer.
-(defun appt-disp-window (min-to-app new-time appt-msg)
- (require 'electric)
- (save-window-excursion
-
- ;; Make sure we're not in the minibuffer
- ;; before splitting the window.
-
- (if (= (screen-height)
- (nth 3 (window-edges (selected-window))))
- nil
- (appt-select-lowest-window)
- (split-window))
-
- (let* ((this-buffer (current-buffer))
- (appt-disp-buf (set-buffer (get-buffer-create "appt-buf"))))
- (setq mode-line-format
- (concat "-------------------- Appointment in "
- min-to-app " minutes. " new-time " %-"))
- (pop-to-buffer appt-disp-buf)
- (insert-string appt-msg)
- (shrink-window-if-larger-than-buffer (get-buffer-window appt-disp-buf))
- (set-buffer-modified-p nil)
- (if appt-audible
- (beep 1))
- (sit-for appt-display-duration)
- (if appt-audible
- (beep 1))
- (kill-buffer appt-disp-buf))))
-
-;; Select the lowest window on the screen.
-(defun appt-select-lowest-window ()
- (setq lowest-window (selected-window))
- (let* ((bottom-edge (car (cdr (cdr (cdr (window-edges))))))
- (last-window (previous-window))
- (window-search t))
- (while window-search
- (let* ((this-window (next-window))
- (next-bottom-edge (car (cdr (cdr (cdr
- (window-edges this-window)))))))
- (if (< bottom-edge next-bottom-edge)
- (progn
- (setq bottom-edge next-bottom-edge)
- (setq lowest-window this-window)))
-
- (select-window this-window)
- (if (eq last-window this-window)
- (progn
- (select-window lowest-window)
- (setq window-search nil)))))))
-
-
-(defun appt-add (new-appt-time new-appt-msg)
- "Add an appointment for the day at TIME and issue MESSAGE.
-The time should be in either 24 hour format or am/pm format."
-
- (interactive "sTime (hh:mm[am/pm]): \nsMessage: ")
- (if (string-match "[0-9]?[0-9]:[0-9][0-9]\\(am\\|pm\\)?" new-appt-time)
- nil
- (error "Unacceptable time-string"))
-
- (let* ((appt-time-string (concat new-appt-time " " new-appt-msg))
- (appt-time (list (appt-convert-time new-appt-time)))
- (time-msg (cons appt-time (list appt-time-string))))
- (setq appt-time-msg-list (append appt-time-msg-list
- (list time-msg)))
- (setq appt-time-msg-list (appt-sort-list appt-time-msg-list))))
-
-(defun appt-delete ()
- "Delete an appointment from the list of appointments."
- (interactive)
- (let* ((tmp-msg-list appt-time-msg-list))
- (while tmp-msg-list
- (let* ((element (car tmp-msg-list))
- (prompt-string (concat "Delete "
- (prin1-to-string (car (cdr element)))
- " from list? "))
- (test-input (y-or-n-p prompt-string)))
- (setq tmp-msg-list (cdr tmp-msg-list))
- (if test-input
- (setq appt-time-msg-list (delq element appt-time-msg-list)))
- (setq tmp-appt-msg-list nil)))
- (message "")))
-
-
-;; Create the appointments list from todays diary buffer.
-;; The time must be at the beginning of a line for it to be
-;; put in the appointments list.
-;; 02/23/89
-;; 12:00pm lunch
-;; Wednesday
-;; 10:00am group meeting"
-
-(defun appt-make-list ()
- (setq appt-time-msg-list nil)
-
- (save-excursion
- (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 ""))
- (while (and entry-list
- (calendar-date-equal
- (calendar-current-date) (car (car entry-list))))
- (let ((time-string (substring (prin1-to-string
- (cdr (car entry-list))) 2 -2)))
-
- (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* ((cur-hour(string-to-int
- (substring (current-time-string) 11 13)))
- (cur-min (string-to-int
- (substring (current-time-string) 14 16)))
- (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
-
- (if (and (string-match "[p][m]" time2conv) (< hr 12))
- (progn
- (string-match "[0-9]?[0-9]:" time2conv)
- (setq hr (+ 12 hr))))
-
- ;; convert the actual time
- ;; into minutes for comparison
- ;; against the actual time.
-
- (setq conv-time (+ (* hr 60) min))
- conv-time))
-
-
-(setq display-time-hook 'appt-check)
-
-
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