1 ;;; time.el --- display time and load in mode line of Emacs.
3 ;; Copyright (C) 1985, 86, 87, 93, 94, 1996 Free Software Foundation, Inc.
5 ;; Maintainer: FSF for the original version.
6 ;; XEmacs add-ons and rewrite (C) by Jens Lautenbacher
7 ;; mail <jens@lemming0.lem.uni-karlsruhe.de>
8 ;; for comments/fixes about the enhancements.
10 ;; This file is part of XEmacs.
12 ;; XEmacs is free software; you can redistribute it and/or modify it
13 ;; under the terms of the GNU General Public License as published by
14 ;; the Free Software Foundation; either version 2, or (at your option)
17 ;; XEmacs is distributed in the hope that it will be useful, but
18 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
19 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 ;; General Public License for more details.
22 ;; You should have received a copy of the GNU General Public License
23 ;; along with XEmacs; see the file COPYING. If not, write to the Free
24 ;; Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
27 ;;; Version: 1.17 (I choose the version number starting at 1.1
28 ;;; to indicate that 1.0 was the old version
29 ;;; before I hacked away on it -jtl)
31 ;;; Synched up with: Not synched with FSF.
35 ;; Facilities to display current time/date and a new-mail indicator
36 ;; in the Emacs mode line. The single entry point is `display-time'.
38 ;; See also reportmail.el.
39 ;; This uses the XEmacs timeout-event mechanism, via a version
40 ;; of Kyle Jones' itimer package.
42 ;;; jtl: This is in a wide part reworked for XEmacs so it won't use
43 ;;; the old mechanism for specifying what is to be displayed.
44 ;;; The starting variable to look at is `display-time-form-list'
46 ;;; It's more advanced features include heavy use of `balloon-help' a
47 ;;; package again written by Kyle Jones. You need to load this
48 ;;; explicitly on your own because I don't think a package should make
49 ;;; decisions which have a global effect (if you want to use it, a
50 ;;; (require 'balloon-help) in your .emacs should work. But look at the
51 ;;; documentation in balloon-help.el itself).
53 ;;; Thanks to Mike Scheidler for the idea to make the time led's fore- and
54 ;;; background color customizable
59 ;;; Not sure for now...
60 ;;;(require 'balloon-help)
62 (defconst display-time-version-number "1.15" "Version number of time.el")
63 (defconst display-time-version (format "Time.el version %s for XEmacs"
64 display-time-version-number)
65 "The full version string for time.el")
67 ;;; Doesn't work by now....
68 ;;;(defvar display-time-keymap nil)
70 ;;;(if display-time-keymap ()
71 ;;; (setq display-time-keymap (make-sparse-keymap))
72 ;;; (suppress-keymap display-time-keymap)
73 ;;; (define-key display-time-keymap 'button1 'balloon-help))
75 (defgroup display-time nil
76 "Facilities to display the current time/date/load and a new-mail indicator
77 in the XEmacs mode line or echo area."
80 (defgroup display-time-balloon nil
81 "Fancy add-ons to display-time for using the `balloon-help' feature.
82 balloon-help must be loaded before these settings take effect."
86 (defcustom display-time-mail-file nil
87 "*File name of mail inbox file, for indicating existence of new mail.
88 Non-nil and not a string means don't check for mail. nil means use
89 default, which is system-dependent, and is the same as used by Rmail."
93 (defcustom display-time-day-and-date nil
94 "*Non-nil means \\[display-time] should display day,date and time.
95 This affects the spec 'date in the variable display-time-form-list."
99 (defcustom display-time-interval 20
100 "*Seconds between updates of time in the mode line."
104 (defcustom display-time-24hr-format nil
105 "*Non-nil indicates time should be displayed as hh:mm, 0 <= hh <= 23.
106 Nil means 1 <= hh <= 12, and an AM/PM suffix is used.
107 This affects the spec 'time in the variable display-time-form-list."
111 (defcustom display-time-echo-area nil
112 "*If non-nil, display-time will use the echo area instead of the mode line."
116 (defvar display-time-string nil)
118 (defcustom display-time-hook nil
119 "*List of functions to be called when the time is updated on the mode line."
123 (defvar display-time-server-down-time nil
124 "Time when mail file's file system was recorded to be down.
125 If that file system seems to be up, the value is nil.")
127 (defcustom display-time-ignore-read-mail t
128 "*Non-nil means display the mail icon on any non-empty mailbox."
133 (defun display-time ()
134 "Display current time, load level, and mail flag in mode line of each buffer.
135 Updates automatically every minute.
136 If `display-time-day-and-date' is non-nil, the current day and date
137 are displayed as well.
138 After each update, `display-time-hook' is run with `run-hooks'.
139 If `display-time-echo-area' is non-nil, the time is displayed in the
140 echo area instead of in the mode-line."
142 (or display-time-insinuated
143 (display-time-insinuate))
144 ;; if the "display-time" itimer already exists, nuke it first.
145 (let ((old (get-itimer "display-time")))
146 (if old (delete-itimer old)))
148 (if (memq 'display-time-string global-mode-string)
149 (setq global-mode-string
150 (remove 'display-time-string global-mode-string)))
151 ;; If we're not displaying the time in the echo area
152 ;; and the global mode string does not have a non-nil value
153 ;; then initialize the global mode string's value.
154 (or display-time-echo-area
156 (setq global-mode-string '("")))
157 ;; If we're not displaying the time in the echo area
158 ;; then we add our variable to the list. This will make the time
159 ;; appear on the modeline.
160 (or display-time-echo-area
161 (setq global-mode-string
162 (append global-mode-string '(display-time-string))))
163 ;; Display the time initially...
164 (display-time-function)
165 ;; ... and start an itimer to do it automatically thereafter.
167 ;; If we wanted to be really clever about this, we could have the itimer
168 ;; not be automatically restarted, but have it re-add itself each time.
169 ;; Then we could look at (current-time) and arrange for the itimer to
170 ;; wake up exactly at the minute boundary. But that's just a little
171 ;; more work than it's worth...
172 (start-itimer "display-time" 'display-time-function
173 display-time-interval display-time-interval))
175 (defun display-time-stop ()
177 (delete-itimer "display-time")
178 (setq display-time-string nil))
180 (defcustom display-time-show-icons-maybe t
181 "Use icons for time, load and mail status if possible
182 and not specified different explicitly"
186 (defvar display-time-icons-dir (locate-data-directory "time"))
188 (defcustom display-time-mail-sign-string " Mail"
189 "The string used as mail indicator in the echo area
190 (and in the modeline if display-time-show-icons-maybe is nil)
191 if display-time-echo-area is t"
195 (defcustom display-time-no-mail-sign-string ""
196 "The string used as no-mail indicator in the echo area
197 (and in the modeline if display-time-show-icons-maybe is nil)
198 if display-time-echo-area is t"
202 (defcustom display-time-display-pad "grey35"
203 "How the load indicator's trapezoidal \"pad\" is to be displayed.
204 This can be 'transparent or a string describing the color it should have"
206 :type '(choice :tag "Value"
208 (string :tag "Color")))
210 (defcustom display-time-display-time-foreground "firebrick"
211 "How the time LEDs foreground is to be displayed.
212 This can be 'modeline (foreground color of the Modeline)
213 or a string describing the color it should have"
215 :type '(choice :tag "Value"
217 (string :tag "Color")))
219 (defcustom display-time-display-time-background 'transparent
220 "How the time LEDs background is to be displayed.
221 This can be 'transparent or a string describing the color it should have"
223 :type '(choice :tag "Value"
225 (string :tag "Color")))
227 (defcustom display-time-mail-balloon 'display-time-mail-balloon
228 "What to use to generate the balloon frame of the \"mail\" glyph
229 if balloon-help is loaded. This can be the function
230 display-time-mail-balloon, nil or a string."
231 :group 'display-time-balloon
232 :type '(choice (const display-time-mail-balloon)
236 (defcustom display-time-no-mail-balloon "No mail is good mail."
237 "The string used in the balloon frame of the \"no mail\" glyph
238 if balloon-help is loaded. This can also be nil"
239 :group 'display-time-balloon
240 :type '(choice (const nil)
243 (defcustom display-time-mail-balloon-show-gnus-group nil
244 "Show the mail group gnus would put this message in.
245 This is only useful if you use gnus to read your mail and have set the variable
246 nnmail-split-methods to split your incoming mail into different groups.
247 Look at the documentation for gnus. If you don't know what we're talking about,
248 don't care and leave this set to nil"
249 :group 'display-time-balloon
252 (defface display-time-mail-balloon-enhance-face '((t (:background "orange")))
253 "Face used for entries in the mail balloon which match the regexp
254 display-time-mail-balloon-enhance"
255 :group 'display-time-balloon)
257 (defface display-time-time-balloon-face '((t (:foreground "red")))
258 "Face used in the time balloon to display the full date and load.
259 It is also used in the mail balloon for the \"You have mail:\" heading."
260 :group 'display-time-balloon)
262 (defface display-time-mail-balloon-gnus-group-face '((t (:foreground "blue")))
263 "Face used for the gnus group entry in the mail balloon
264 if display-time-mail-balloon-show-gnus-group is t (see the documentation there
265 before you set it to t)"
266 :group 'display-time-balloon)
268 (defcustom display-time-mail-balloon-max-displayed 10
269 "The maximum number of messaged which are displayed in the mail balloon.
270 You need to have balloon-help loaded to use this."
271 :group 'display-time-balloon
274 (defcustom display-time-mail-balloon-from-width 20
275 "The width of the `From:' part of the mail balloon.
276 You need to have balloon-help loaded to use this"
277 :group 'display-time-balloon
280 (defcustom display-time-mail-balloon-subject-width 25
281 "The width of the `Subject:' part of the mail balloon.
282 You need to have balloon-help loaded to use this"
283 :group 'display-time-balloon
286 (defcustom display-time-mail-balloon-gnus-split-width 10
287 "The width of the `Gnus Mail Group' part of the mail balloon.
288 This denotes the mail group gnus would decide to put this message in.
289 For getting this information, it consults the relevant variables from gnus
290 (nnmail-split-methods).
291 You need to have balloon-help loaded to use this"
292 :group 'display-time-balloon
295 (defcustom display-time-mail-balloon-enhance nil
296 "A list of regular expressions describing which messages should be highlighted
297 in the mail balloon. The regexp will be matched against the complete header block
298 of an email. You need to load balloon-help to use this"
299 :group 'display-time-balloon
300 :type '(repeat (string :tag "Regexp")))
302 (defcustom display-time-mail-balloon-suppress nil
303 "A list of regular expressions describing which messages should be completely suppressed
304 in the mail balloon. The regexp will be matched against the complete header block
305 of an email. It will only take effect if the message is not matched already
306 by display-time-mail-balloon-enhance.
307 You need to load balloon-help to use this"
308 :group 'display-time-balloon
309 :type '(repeat (string :tag "Regexp")))
311 (defcustom display-time-mail-balloon-enhance-gnus-group nil
312 "A list of regular expressions describing which messages should be highlighted
313 in the mail balloon. The regexp will be matched against the group gnus would stuff
314 this message into. It will only take effect if the message is not matched already
315 by display-time-mail-balloon-suppress.
317 This requires display-time-mail-balloon-show-gnus-group to be t
318 and balloon-help to be loaded"
319 :group 'display-time-balloon
320 :type '(repeat (string :tag "Regexp")))
322 (defcustom display-time-mail-balloon-suppress-gnus-group nil
323 "A list of regular expressions describing which messages should be completely suppressed
324 in the mail balloon. The regexp will be matched against the group gnus would stuff
325 this message into. It will only take effect if the message is not matched already
326 by display-time-mail-balloon-enhance or display-time-mail-balloon-enhance-gnus-group.
328 This requires display-time-mail-balloon-show-gnus-group to be t
329 and balloon-help to be loaded"
330 :group 'display-time-balloon
331 :type '(repeat (string :tag "Regexp")))
333 (defvar display-time-spool-file-modification nil)
335 (defvar display-time-mail-header nil)
337 (defvar display-time-temp-buffer " *Display-time-temp-buffer*")
339 (defvar display-time-display-pad-old nil)
341 (defvar display-time-display-time-fg-old nil)
343 (defvar display-time-display-time-bg-old nil)
345 (defcustom display-time-load-list
346 (list 0.2 0.5 0.8 1.1 1.8 2.6)
347 "*A list giving six thresholds for the load
348 which correspond to the six different icons to be displayed
351 :type '(list (number :tag "Threshold 1")
352 (number :tag "Threshold 2")
353 (number :tag "Threshold 3")
354 (number :tag "Threshold 4")
355 (number :tag "Threshold 5")
356 (number :tag "Threshold 6")))
358 (defcustom display-time-compatible nil
359 "*This variable may be set to t to get the old behaviour of display-time.
360 It should be considered obsolete and only be used if you really want the
361 old behaviour (eq. you made extensive customizations yourself).
362 This means no display of a spiffy mail icon or use of the
363 display-time-form-list instead of the old display-time-string-form."
367 (defun display-time-string-to-char-list (str)
368 (mapcar (function identity) str))
370 (defun display-time-generate-load-glyphs (&optional force)
371 (let* ((pad-color (if (symbolp display-time-display-pad)
372 (list "pad-color" '(face-background 'modeline))
373 (list "pad-color" display-time-display-pad)))
374 (xpm-color-symbols (append (list pad-color) xpm-color-symbols)))
375 (if (and (featurep 'xpm)
376 (or force (not (equal display-time-display-pad
377 display-time-display-pad-old))))
379 (setq display-time-load-0.0-glyph
380 (cons (make-extent nil nil)
382 (concat display-time-icons-dir "l-0.0.xpm"))))
383 (setq display-time-load-0.5-glyph
384 (cons (make-extent nil nil)
386 (concat display-time-icons-dir "l-0.5.xpm"))))
387 (setq display-time-load-1.0-glyph
388 (cons (make-extent nil nil)
390 (concat display-time-icons-dir "l-1.0.xpm"))))
391 (setq display-time-load-1.5-glyph
392 (cons (make-extent nil nil)
394 (concat display-time-icons-dir "l-1.5.xpm"))))
395 (setq display-time-load-2.0-glyph
396 (cons (make-extent nil nil)
398 (concat display-time-icons-dir "l-2.0.xpm"))))
399 (setq display-time-load-2.5-glyph
400 (cons (make-extent nil nil)
402 (concat display-time-icons-dir "l-2.5.xpm"))))
403 (setq display-time-load-3.0-glyph
404 (cons (make-extent nil nil)
406 (concat display-time-icons-dir "l-3.0.xpm"))))
407 (setq display-time-display-pad-old display-time-display-pad)
411 (defun display-time-generate-time-glyphs (&optional force)
412 (let* ((ledbg (if (symbolp display-time-display-time-background)
413 (list "ledbg" '(face-background 'modeline))
414 (list "ledbg" display-time-display-time-background)))
415 (ledfg (if (symbolp display-time-display-time-foreground)
416 (list "ledfg" '(face-foreground 'modeline))
417 (list "ledfg" display-time-display-time-foreground)))
418 (xpm-color-symbols (append (list ledbg)
419 (list ledfg) xpm-color-symbols)))
420 (if (and (featurep 'xpm)
421 (or force (not (equal display-time-display-time-background
422 display-time-display-time-bg-old))
423 (not (equal display-time-display-time-foreground
424 display-time-display-time-fg-old))))
426 (setq display-time-1-glyph
427 (cons (make-extent nil nil)
428 (make-glyph (concat display-time-icons-dir "1.xpm"))))
429 (setq display-time-2-glyph
430 (cons (make-extent nil nil)
431 (make-glyph (concat display-time-icons-dir "2.xpm"))))
432 (setq display-time-3-glyph
433 (cons (make-extent nil nil)
434 (make-glyph (concat display-time-icons-dir "3.xpm"))))
435 (setq display-time-4-glyph
436 (cons (make-extent nil nil)
437 (make-glyph (concat display-time-icons-dir "4.xpm"))))
438 (setq display-time-5-glyph
439 (cons (make-extent nil nil)
440 (make-glyph (concat display-time-icons-dir "5.xpm"))))
441 (setq display-time-6-glyph
442 (cons (make-extent nil nil)
443 (make-glyph (concat display-time-icons-dir "6.xpm"))))
444 (setq display-time-7-glyph
445 (cons (make-extent nil nil)
446 (make-glyph (concat display-time-icons-dir "7.xpm"))))
447 (setq display-time-8-glyph
448 (cons (make-extent nil nil)
449 (make-glyph (concat display-time-icons-dir "8.xpm"))))
450 (setq display-time-9-glyph
451 (cons (make-extent nil nil)
452 (make-glyph (concat display-time-icons-dir "9.xpm"))))
453 (setq display-time-0-glyph
454 (cons (make-extent nil nil)
455 (make-glyph (concat display-time-icons-dir "0.xpm"))))
456 (setq display-time-:-glyph
457 (cons (make-extent nil nil)
458 (make-glyph (concat display-time-icons-dir "dp.xpm"))))
459 (setq display-time-am-glyph
460 (cons (make-extent nil nil)
461 (make-glyph (concat display-time-icons-dir "am.xpm"))))
462 (setq display-time-pm-glyph
463 (cons (make-extent nil nil)
464 (make-glyph (concat display-time-icons-dir "pm.xpm"))))
465 (setq display-time-display-time-fg-old
466 display-time-display-time-foreground
467 display-time-display-time-bg-old
468 display-time-display-time-background)
471 (defun display-time-init-glyphs ()
472 "This is a hack to have all glyphs be displayed one time at startup.
473 It helps avoiding problems with the background color of the glyphs if a
474 balloon-help frame is open and a not yet displayed glyph is going to be
477 (list '("am" "pm" ":"))
480 (push (eval (intern-soft (concat "display-time-"
486 (push (eval (intern-soft (concat "display-time-load-"
490 (while (setq elem (pop list))
491 (push (eval (intern-soft (concat "display-time-"
492 elem "-glyph"))) mlist))
493 (let ((global-mode-string mlist))
497 (defvar display-time-insinuated nil)
499 ;; This used to be at top-level!
500 (defun display-time-insinuate ()
501 (when (featurep 'xpm)
502 (defvar display-time-mail-sign
503 (cons (make-extent nil nil)
504 (make-glyph (concat display-time-icons-dir "letter.xpm"))))
505 (set-extent-property (car display-time-mail-sign) 'balloon-help
506 'display-time-mail-balloon)
507 ;;; (set-extent-keymap (car display-time-mail-sign)
508 ;;; display-time-keymap)
509 (defvar display-time-no-mail-sign
510 (cons (make-extent nil nil)
511 (make-glyph (concat display-time-icons-dir "no-letter.xpm"))))
512 (set-extent-property (car display-time-no-mail-sign) 'balloon-help
513 display-time-no-mail-balloon)
514 ;;; (set-extent-keymap (car display-time-no-mail-sign)
515 ;;; display-time-keymap)
516 (defvar display-time-1-glyph nil)
517 (defvar display-time-2-glyph nil)
518 (defvar display-time-3-glyph nil)
519 (defvar display-time-4-glyph nil)
520 (defvar display-time-5-glyph nil)
521 (defvar display-time-6-glyph nil)
522 (defvar display-time-7-glyph nil)
523 (defvar display-time-8-glyph nil)
524 (defvar display-time-9-glyph nil)
525 (defvar display-time-0-glyph nil)
526 (defvar display-time-:-glyph nil)
527 (defvar display-time-am-glyph nil)
528 (defvar display-time-pm-glyph nil)
529 (defvar display-time-load-0.0-glyph nil)
530 (defvar display-time-load-0.5-glyph nil)
531 (defvar display-time-load-1.0-glyph nil)
532 (defvar display-time-load-1.5-glyph nil)
533 (defvar display-time-load-2.0-glyph nil)
534 (defvar display-time-load-2.5-glyph nil)
535 (defvar display-time-load-3.0-glyph nil)
536 (display-time-generate-time-glyphs 'force)
537 (display-time-generate-load-glyphs 'force)
538 (display-time-init-glyphs)
540 (setq display-time-insinuated t))
543 (defun display-time-can-do-graphical-display (&optional textual)
544 (and display-time-show-icons-maybe
546 (console-on-window-system-p)
548 (not display-time-echo-area)))
551 (defun display-time-convert-num (time-string &optional textual)
552 (let ((list (display-time-string-to-char-list time-string))
553 elem tmp balloon-help balloon-ext)
554 (if (not (display-time-can-do-graphical-display textual)) time-string
555 (display-time-generate-time-glyphs)
557 (format "%s, %s %s %s %s" dayname day monthname year
558 (concat " Average load:"
559 (if (not (equal load ""))
562 (setq balloon-ext (make-extent 0 (length balloon-help) balloon-help))
563 (set-extent-property balloon-ext 'face 'display-time-time-balloon-face)
564 (set-extent-property balloon-ext 'duplicable 't)
565 (while (setq elem (pop list))
567 (eval (intern-soft (concat "display-time-"
568 (char-to-string elem)
570 (set-extent-property (car elem) 'balloon-help balloon-help)
571 (set-extent-property (car elem) 'help-echo
572 (format "%s, %s %s %s"
573 dayname day monthname year))
574 ;;; (set-extent-keymap (car elem) display-time-keymap)
578 (defun display-time-convert-load (load-string &optional textual)
579 (let ((load-number (string-to-number load-string))
580 (alist (list (cons 0.0 0.0)
581 (cons 0.5 (car display-time-load-list))
582 (cons 1.0 (cadr display-time-load-list))
583 (cons 1.5 (caddr display-time-load-list))
584 (cons 2.0 (cadddr display-time-load-list))
585 (cons 2.5 (cadr (cdddr display-time-load-list)))
586 (cons 3.0 (caddr (cdddr display-time-load-list)))
587 (cons 100000 100000)))
589 (if (not (display-time-can-do-graphical-display textual))
591 (display-time-generate-load-glyphs)
592 (while (>= load-number (cdr (setq elem (pop alist))))
593 (setq load-elem elem))
594 (eval (intern-soft (concat "display-time-load-"
595 (number-to-string (car load-elem))
598 (defun display-time-convert-am-pm (ampm-string &optional textual)
599 (if (not (display-time-can-do-graphical-display textual))
601 (cond ((equal ampm-string "am") display-time-am-glyph)
602 ((equal ampm-string "pm") display-time-pm-glyph))))
604 (defun display-time-mail-balloon (&rest ciao)
605 (let* ((mail-spool-file (or display-time-mail-file
607 (concat rmail-spool-directory
609 (show-split (and display-time-mail-balloon-show-gnus-group
610 (or (featurep 'nnmail) (require 'nnmail))))
611 (display-time-mail-balloon-gnus-split-width
612 (if (not show-split) 0
613 (+ 3 display-time-mail-balloon-gnus-split-width))) ; -><space>... = +3
614 (mod (nth 5 (file-attributes mail-spool-file)))
616 (setq header "You have mail:")
618 (make-extent 0 (length header) header))
619 (set-extent-property header-ext 'face 'display-time-time-balloon-face)
620 (set-extent-property header-ext 'duplicable t)
621 (setq header (concat header "\n"
622 (make-string (+ display-time-mail-balloon-from-width
623 display-time-mail-balloon-subject-width
624 display-time-mail-balloon-gnus-split-width
625 3) (string-to-char "-"))))
627 mod display-time-spool-file-modification))
629 (setq display-time-spool-file-modification mod)
630 (setq display-time-mail-header
631 (display-time-scan-mail-file mail-spool-file show-split))))
632 (setq header (concat header display-time-mail-header))
636 (defun display-time-scan-mail-file (file show-split)
637 (let ((mail-headers "")
638 (nntp-server-buffer (get-buffer-create " *Display-Time-Split-Buffer*"))
642 (suppress-list display-time-mail-balloon-suppress)
643 (enhance-list display-time-mail-balloon-enhance)
644 (gnus-suppress-list display-time-mail-balloon-suppress-gnus-group)
645 (gnus-enhance-list display-time-mail-balloon-enhance-gnus-group)
646 mail-headers-list start end from subject gnus-group tmp
647 suppress enhance line line-ext
648 gnus-suppress-reg gnus-enhance-reg suppress-reg enhance-reg)
650 (erase-buffer (get-buffer-create display-time-temp-buffer))
651 (message "Scanning spool file...")
652 (while (setq tmp (pop enhance-list))
654 (if (car enhance-list) (concat enhance-reg tmp "\\|")
655 (concat enhance-reg tmp))))
656 (while (setq tmp (pop suppress-list))
658 (if (car suppress-list) (concat suppress-reg tmp "\\|")
659 (concat suppress-reg tmp))))
660 (while (setq tmp (pop gnus-enhance-list))
661 (setq gnus-enhance-reg
662 (if (car gnus-enhance-list) (concat gnus-enhance-reg tmp "\\|")
663 (concat gnus-enhance-reg tmp))))
664 (while (setq tmp (pop gnus-suppress-list))
665 (setq gnus-suppress-reg
666 (if (car gnus-suppress-list) (concat gnus-suppress-reg tmp "\\|")
667 (concat gnus-suppress-reg tmp))))
669 (set-buffer display-time-temp-buffer)
670 (setq case-fold-search nil)
671 (insert-file-contents file)
672 (goto-char (point-min))
673 (while (setq start (re-search-forward "^From " nil t))
675 (setq end (re-search-forward "^$" nil t))
676 (narrow-to-region start end)
677 (goto-char (point-min))
680 (if display-time-mail-balloon-enhance
681 (re-search-forward enhance-reg nil t))))
684 (goto-char (point-min))
685 (nnmail-article-group '(lambda (name) (setq gnus-group name)))))
687 (if enhance () ; this takes prejudice over everything else
688 (setq suppress ; maybe set suppress only if not already enhanced
690 (if display-time-mail-balloon-suppress
691 (re-search-forward suppress-reg nil t))))
693 (or (setq enhance ;;maybe we enhance because of the gnus group name
695 (if (and show-split gnus-group
696 display-time-mail-balloon-enhance-gnus-group)
697 (string-match gnus-enhance-reg gnus-group))))
698 (setq suppress ;; if we didn't enhance then maybe we have to
701 (if (and show-split gnus-group
702 display-time-mail-balloon-suppress-gnus-group)
703 (string-match gnus-suppress-reg gnus-group)))))))
707 (re-search-forward "^From: \\(.*\\)" nil t)
708 (mail-extract-address-components (match-string 1))))
711 (re-search-forward "^Subject: \\(.*\\)" nil t)
713 (if suppress (setq suppress-count (1+ suppress-count))
714 (if (car from) (setq from (car from))
715 (setq from (cadr from)))
716 (if (> (length from) display-time-mail-balloon-from-width)
717 (setq from (substring from 0
718 display-time-mail-balloon-from-width)))
719 (if (> (length subject) display-time-mail-balloon-subject-width)
720 (setq subject (substring subject 0
721 display-time-mail-balloon-subject-width)))
722 (if (and show-split gnus-group
723 (> (length gnus-group)
724 (- display-time-mail-balloon-gnus-split-width 3)))
725 (setq gnus-group (substring gnus-group 0
726 (- display-time-mail-balloon-gnus-split-width 3))))
728 (setq line (format (concat
729 "\n%-"(number-to-string
730 display-time-mail-balloon-from-width)
731 "s [%-"(number-to-string
732 display-time-mail-balloon-subject-width)
735 (if (and show-split gnus-group)
736 (setq line (concat line
739 "-> %" (number-to-string
740 (- display-time-mail-balloon-gnus-split-width 3))
744 (setq line-ext (make-extent 1 (length line) line))
745 (set-extent-property line-ext 'face
746 'display-time-mail-balloon-enhance-face)
747 (set-extent-property line-ext 'duplicable t)
748 (set-extent-property line-ext 'end-open t)))
749 (if (and show-split gnus-group)
751 (setq line-ext (make-extent (- (length line)
752 display-time-mail-balloon-gnus-split-width)
754 (set-extent-property line-ext 'face
755 'display-time-mail-balloon-gnus-group-face)
756 (set-extent-property line-ext 'duplicable t)
757 (set-extent-property line-ext 'end-open t)))
758 (push line mail-headers-list))
759 (goto-char (point-max))
765 (kill-buffer display-time-temp-buffer)
766 (if (> (length mail-headers-list) display-time-mail-balloon-max-displayed)
767 (setq not-displayed (- (length mail-headers-list)
768 display-time-mail-balloon-max-displayed)))
769 (while (< i display-time-mail-balloon-max-displayed)
770 (setq mail-headers (concat mail-headers (pop mail-headers-list)))
772 (if (and (equal mail-headers "") (> suppress-count 0))
773 (setq mail-headers "\nOnly junk mail..."))
774 (concat mail-headers "\n"
775 (make-string (+ display-time-mail-balloon-from-width
776 display-time-mail-balloon-subject-width
777 display-time-mail-balloon-gnus-split-width
778 3) (string-to-char "-"))
780 (if (> not-displayed 0)
781 (concat "More: " (number-to-string not-displayed)"\n"))
782 (if (> suppress-count 0)
783 (concat "Suppressed: " (number-to-string suppress-count)))
787 (defun display-time-mail-sign (&optional textual)
788 "*A function giving back the object indicating 'mail' which
789 is the value of display-time-mail-sign when running under X,
790 display-time-echo-area is nil and display-time-show-icons-maybe is t.
791 It is the value of display-time-mail-sign-string otherwise or when
792 the optional parameter TEXTUAL is non-nil."
793 (if (not (display-time-can-do-graphical-display textual))
794 display-time-mail-sign-string
795 (list " " display-time-mail-sign " ")))
797 (defun display-time-no-mail-sign (&optional textual)
798 "*A function giving back the object indicating 'no mail' which
799 is the value of display-time-no-mail-sign when running under X,
800 display-time-echo-area is nil and display-time-show-icons-maybe is t.
801 It is the value of display-time-no-mail-sign-string otherwise or when
802 the optional parameter TEXTUAL is non-nil."
803 (if (not (display-time-can-do-graphical-display textual))
804 display-time-no-mail-sign-string
805 (list " " display-time-no-mail-sign " ")))
807 (defcustom display-time-form-list
808 (list 'date 'time 'load 'mail)
809 "*This list describes the format of the strings/glyphs
810 which are to be displayed by display-time.
811 The old variable display-time-string-forms is only used if
812 display-time-compatible is non-nil. It is a list consisting of
813 strings or any of the following symbols:
815 There are three complex specs whose behaviour is changed via
816 the setting of various variables
818 date: This prints out the date in a manner compatible to
819 the default value of the obsolete variable
820 display-time-string-forms. It respects the variable
821 display-time-day-and-date. If this is t it will print
822 out the current date in the form DAYNAME MONTH DAY
823 otherwise it will print nothing.
825 time: This prints out the time in a manner compatible to
826 the default value of the obsolete variable
827 display-time-string-forms. It respects the variable
828 display-time-24hr-format. If this is t it will print
829 out the current hours in 24-hour format, if nil the
830 hours will be printed in 12-hour format and the
831 minutes will be followed by 'AM' or 'PM'.
833 time-text: The same as above, but will not use a glyph
835 The other specs are simpler, as their meaning is not changed via
838 24-hours: This prints the hours in 24-hours format
840 24-hours-text: The same as above, but will not use a glyph
842 12-hours: This prints the hours in 12-hours format
844 12-hours-text: The same as above, but will not use a glyph
846 am-pm: This prints am or pm.
848 Timezone: This prints out the local timezone
850 am-pm-text: The same as above, but will not use a glyph
852 minutes: This prints the minutes.
854 minutes-text: The same as above, but will not use a glyph
856 day: This prints out the current day as a number.
858 dayname: This prints out today's name.
860 month: This prints out the current month as a number
862 monthname: This prints out the current month's name
864 year: This prints out the current year.
866 load: This prints out the system's load.
868 load-text: The same as above, but will not use a glyph
870 mail: This displays a mail indicator. Under X this will
871 normally be a small icon which changes depending if
872 there is new mail or not.
874 mail-text: The same as above, but will not use a glyph"
876 :type '(repeat (choice :tag "Symbol/String"
877 (const :tag "Date" date)
878 (const :tag "Time" time)
879 (const :tag "Time (text)" time-text)
880 (const :tag "24 hour format" 24-hours)
881 (const :tag "24 hour format (text)" 24-hours-text)
882 (const :tag "12 hour format" 12-hours)
883 (const :tag "12 hour format (text)" 12-hours-text)
884 (const :tag "AM/PM indicator" am-pm)
885 (const :tag "AM/PM indicator (text)" am-pm-text)
886 (const :tag "Timezone" timezone)
887 (const :tag "Minutes" minutes)
888 (const :tag "Minutes (text)" minutes-text)
889 (const :tag "Day" day)
890 (const :tag "Dayname" dayname)
891 (const :tag "Month" month)
892 (const :tag "Monthname" monthname)
893 (const :tag "Year" year)
894 (const :tag "Load" load)
895 (const :tag "Load (text)" load-text)
896 (const :tag "Mail sign" mail)
897 (const :tag "Mail sign (text)" mail-text)
898 (string :tag "String"))))
900 (defun display-time-evaluate-list ()
901 "Evaluate the variable display-time-form-list"
902 (let ((list display-time-form-list) elem tmp result)
903 (while (setq elem (pop list))
904 (cond ((stringp elem) (push elem tmp))
906 (push (if display-time-day-and-date
907 (format "%s %s %s " dayname monthname day) "") tmp))
910 (push (display-time-convert-num
912 (if display-time-24hr-format 24-hours 12-hours)
914 (if (not display-time-24hr-format)
915 (push (display-time-convert-am-pm am-pm) tmp))))
916 ((eq elem 'time-text)
917 (push (display-time-convert-num
919 (if display-time-24hr-format 24-hours 12-hours)
921 (if (not display-time-24hr-format)
922 (push (display-time-convert-am-pm am-pm t) tmp)))
923 ((eq elem 'day) (push day tmp))
924 ((eq elem 'dayname) (push dayname tmp))
925 ((eq elem 'month) (push month tmp))
926 ((eq elem 'monthname) (push monthname tmp))
928 (push (display-time-convert-num 24-hours) tmp))
931 ((eq elem '24-hours-text)
932 (push (display-time-convert-num 24-hours t) tmp))
934 (push (display-time-convert-num 12-hours) tmp))
935 ((eq elem '12-hours-text)
936 (push (display-time-convert-num 12-hours t) tmp))
938 (push (display-time-convert-num minutes) tmp))
940 (push (display-time-convert-num seconds) tmp))
941 ((eq elem 'minutes-text)
942 (push (display-time-convert-num minutes t) tmp))
944 (push (display-time-convert-am-pm am-pm) tmp))
945 ((eq elem 'am-pm-text)
946 (push (display-time-convert-am-pm am-pm t) tmp))
948 (push time-zone tmp))
950 (push (display-time-convert-load load) tmp))
951 ((eq elem 'load-text)
952 (push (display-time-convert-load load t) tmp))
954 (push (if mail (display-time-mail-sign)
955 (display-time-no-mail-sign)) tmp))
956 ((eq elem 'mail-text)
957 (push (if mail (display-time-mail-sign t)
958 (display-time-no-mail-sign t)) tmp))
960 ;; We know that we have a list containing only of strings if
961 ;; display-time-echo-area is t. So we construct this string from
962 ;; the list. Else we just reverse the list and give it as result.
963 (if (not display-time-echo-area) (setq result (reverse tmp))
964 (while (setq elem (pop tmp))
965 (setq result (concat elem result))))
969 (defvar display-time-string-forms
970 '((if display-time-day-and-date
971 (format "%s %s %s " dayname monthname day)
974 (if display-time-24hr-format 24-hours 12-hours)
976 (if display-time-24hr-format "" am-pm))
978 (if mail " Mail" ""))
979 "*It will only be used if display-time-compatible is t.
980 A list of expressions governing display of the time in the mode line.
981 This expression is a list of expressions that can involve the keywords
982 `load', `day', `month', and `year', `12-hours', `24-hours', `minutes',
983 `seconds', all numbers in string form, and `monthname', `dayname', `am-pm',
984 and `time-zone' all alphabetic strings and `mail' a true/nil string value.
986 For example, the form
988 '((substring year -2) \"/\" month \"/\" day
989 \" \" 24-hours \":\" minutes \":\" seconds
990 (if time-zone \" (\") time-zone (if time-zone \")\"))
992 would give mode line times like `94/12/30 21:07:48 (UTC)'.")
994 (make-obsolete-variable 'display-time-string-forms
995 "You should use the new facilities for `display-time'.
996 Look at display-time-form-list.")
998 (defun display-time-function ()
999 (let* ((now (current-time))
1000 (nowhigh (* (- (nth 0 now) (* (/ (nth 0 now) 10) 10)) 65536))
1001 (time (current-time-string now))
1002 (load (condition-case ()
1003 (if (zerop (car (load-average))) ""
1004 (let ((str (format " %03d" (car (load-average)))))
1005 (concat (substring str 0 -2) "." (substring str -2))))
1007 (mail-spool-file (or display-time-mail-file
1009 (concat rmail-spool-directory
1010 (user-login-name))))
1011 (mail (and (stringp mail-spool-file)
1012 (or (null display-time-server-down-time)
1013 ;; If have been down for 20 min, try again.
1014 (> (- (+ (nth 1 now) nowhigh)
1015 display-time-server-down-time)
1017 (let ((start-time (current-time)))
1019 (display-time-file-nonempty-p mail-spool-file)
1020 (setq now (current-time)
1021 nowhigh (* (- (nth 0 now) (* (/ (nth 0 now) 10) 10)) 65536))
1022 (if (> (- (+ (nth 1 now) nowhigh)
1023 (+ (nth 1 start-time)
1024 (* (- (nth 0 start-time) (* (/ (nth 0 start-time) 10) 10)) 65536)))
1026 ;; Record that mail file is not accessible.
1027 (setq display-time-server-down-time
1028 (+ (nth 1 now) nowhigh))
1029 ;; Record that mail file is accessible.
1030 (setq display-time-server-down-time nil))))))
1031 (24-hours (substring time 11 13))
1032 (hour (string-to-int 24-hours))
1033 (12-hours (int-to-string (1+ (% (+ hour 11) 12))))
1034 (am-pm (if (>= hour 12) "pm" "am"))
1035 (minutes (substring time 14 16))
1036 (seconds (substring time 17 19))
1037 (time-zone (car (cdr (current-time-zone now))))
1038 (day (substring time 8 10))
1039 (year (substring time 20 24))
1040 (monthname (substring time 4 7))
1045 '(("Jan" . "1") ("Feb" . "2") ("Mar" . "3") ("Apr" . "4")
1046 ("May" . "5") ("Jun" . "6") ("Jul" . "7") ("Aug" . "8")
1047 ("Sep" . "9") ("Oct" . "10") ("Nov" . "11") ("Dec" . "12")))))
1048 (dayname (substring time 0 3)))
1049 (setq display-time-string
1050 (if display-time-compatible
1051 (mapconcat 'eval display-time-string-forms "")
1052 (display-time-evaluate-list)))
1053 ;; This is inside the let binding, but we are not going to document
1054 ;; what variables are available.
1055 (run-hooks 'display-time-hook))
1056 (if display-time-echo-area
1057 (or (> (minibuffer-depth) 0)
1058 ;; don't stomp echo-area-buffer if reading from minibuffer now.
1060 (save-window-excursion
1061 (select-window (minibuffer-window))
1063 (indent-to (- (frame-width) (length display-time-string) 1))
1064 (insert display-time-string)
1065 (message (buffer-string)))))
1066 (force-mode-line-update)
1067 ;; Do redisplay right now, if no input pending.
1070 (defun display-time-file-nonempty-p (file)
1071 (let ((attributes (file-attributes (file-chase-links file))))
1073 (< 0 (nth 7 attributes))
1074 (or display-time-ignore-read-mail
1075 (> (car (nth 5 attributes)) (car (nth 4 attributes)))
1076 (and (= (car (nth 5 attributes)) (car (nth 4 attributes)))
1077 (> (cadr (nth 5 attributes)) (cadr (nth 4 attributes))))))))
1081 ;;; time.el ends here