1 ;;; gnus-xmas.el --- Gnus functions for XEmacs
2 ;; Copyright (C) 1995,96 Free Software Foundation, Inc.
4 ;; Author: Lars Magne Ingebrigtsen <larsi@ifi.uio.no>
7 ;; This file is part of GNU Emacs.
9 ;; GNU Emacs is free software; you can redistribute it and/or modify
10 ;; it under the terms of the GNU General Public License as published by
11 ;; the Free Software Foundation; either version 2, or (at your option)
14 ;; GNU Emacs is distributed in the hope that it will be useful,
15 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
16 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 ;; GNU General Public License for more details.
19 ;; You should have received a copy of the GNU General Public License
20 ;; along with GNU Emacs; see the file COPYING. If not, write to the
21 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
22 ;; Boston, MA 02111-1307, USA.
29 (eval-when-compile (require 'cl))
30 (defvar menu-bar-mode t)
31 (require 'message-xmas)
33 (defvar gnus-xmas-glyph-directory nil
34 "*Directory where Gnus logos and icons are located.
35 If this variable is nil, Gnus will try to locate the directory
38 ;;; Internal variables.
40 (defvar gnus-xmas-logo (make-glyph (make-specifier 'image)))
42 ;; Don't warn about these undefined variables.
44 (defvar gnus-group-mode-hook)
45 (defvar gnus-summary-mode-hook)
46 (defvar gnus-article-mode-hook)
49 (defvar gnus-active-hashtb)
50 (defvar gnus-article-buffer)
51 (defvar gnus-auto-center-summary)
52 (defvar gnus-buffer-list)
53 (defvar gnus-current-headers)
54 (defvar gnus-level-killed)
55 (defvar gnus-level-zombie)
56 (defvar gnus-newsgroup-bookmarks)
57 (defvar gnus-newsgroup-dependencies)
58 (defvar gnus-newsgroup-selected-overlay)
59 (defvar gnus-newsrc-hashtb)
60 (defvar gnus-read-mark)
61 (defvar gnus-refer-article-method)
62 (defvar gnus-reffed-article-number)
63 (defvar gnus-unread-mark)
65 (defvar gnus-view-pseudos)
66 (defvar gnus-view-pseudos-separately)
68 (defvar gnus-zombie-list)
69 ;;defined in gnus-msg.el
70 (defvar gnus-article-copy)
71 (defvar gnus-check-before-posting)
72 ;;defined in gnus-vis.el
73 (defvar gnus-article-button-face)
74 (defvar gnus-article-mouse-face)
75 (defvar gnus-summary-selected-face)
76 (defvar gnus-group-reading-menu)
77 (defvar gnus-group-group-menu)
78 (defvar gnus-group-misc-menu)
79 (defvar gnus-summary-article-menu)
80 (defvar gnus-summary-thread-menu)
81 (defvar gnus-summary-misc-menu)
82 (defvar gnus-summary-post-menu)
83 (defvar gnus-summary-kill-menu)
84 (defvar gnus-article-article-menu)
85 (defvar gnus-article-treatment-menu)
87 (defvar standard-display-table)
89 (defun gnus-xmas-set-text-properties (start end props &optional buffer)
90 "You should NEVER use this function. It is ideologically blasphemous.
91 It is provided only to ease porting of broken FSF Emacs programs."
94 (map-extents (lambda (extent ignored)
95 (remove-text-properties
97 (list (extent-property extent 'text-prop) nil)
99 buffer start end nil nil 'text-prop)
100 (add-text-properties start end props buffer)))
102 (defun gnus-xmas-highlight-selected-summary ()
103 ;; Highlight selected article in summary buffer
104 (if gnus-summary-selected-face
106 (if gnus-newsgroup-selected-overlay
107 (delete-extent gnus-newsgroup-selected-overlay))
108 (setq gnus-newsgroup-selected-overlay
109 (make-extent (gnus-point-at-bol) (gnus-point-at-eol)))
110 (set-extent-face gnus-newsgroup-selected-overlay
111 gnus-summary-selected-face))))
113 (defun gnus-xmas-summary-recenter ()
114 "\"Center\" point in the summary window.
115 If `gnus-auto-center-summary' is nil, or the article buffer isn't
116 displayed, no centering will be performed."
117 ;; Suggested by earle@mahendo.JPL.NASA.GOV (Greg Earle).
118 ;; Recenter only when requested. Suggested by popovich@park.cs.columbia.edu.
119 (when gnus-auto-center-summary
120 (let* ((height (if (fboundp 'window-displayed-height)
121 (window-displayed-height)
122 (- (window-height) 2)))
123 (top (cond ((< height 4) 0)
126 (bottom (save-excursion (goto-char (point-max))
127 (forward-line (- height))
129 (window (get-buffer-window (current-buffer))))
130 (when (get-buffer-window gnus-article-buffer)
131 ;; Only do recentering when the article buffer is displayed,
132 ;; Set the window start to either `bottom', which is the biggest
133 ;; possible valid number, or the second line from the top,
134 ;; whichever is the least.
136 window (min bottom (save-excursion
137 (forward-line (- top)) (point)))))
138 ;; Do horizontal recentering while we're at it.
139 (when (and (get-buffer-window (current-buffer) t)
140 (not (eq gnus-auto-center-summary 'vertical)))
141 (let ((selected (selected-window)))
142 (select-window (get-buffer-window (current-buffer) t))
143 (gnus-summary-position-point)
144 (gnus-horizontal-recenter)
145 (select-window selected))))))
147 (defun gnus-xmas-group-remove-excess-properties ()
149 (beg (progn (forward-line -1) (point))))
150 (remove-text-properties (1+ beg) end '(gnus-group nil))
151 (remove-text-properties
153 '(gnus-topic nil gnus-topic-level nil gnus-topic-visible nil))
156 (defun gnus-xmas-topic-remove-excess-properties ()
158 (beg (progn (forward-line -1) (point))))
159 (remove-text-properties beg end '(gnus-group nil gnus-unread nil))
162 (defun gnus-xmas-extent-start-open (point)
163 (map-extents (lambda (extent arg)
164 (set-extent-property extent 'start-open t))
165 nil point (min (1+ (point)) (point-max))))
167 (defun gnus-xmas-copy-article-buffer (&optional article-buffer)
168 (setq gnus-article-copy (get-buffer-create " *gnus article copy*"))
169 (buffer-disable-undo gnus-article-copy)
170 (or (memq gnus-article-copy gnus-buffer-list)
171 (setq gnus-buffer-list (cons gnus-article-copy gnus-buffer-list)))
172 (let ((article-buffer (or article-buffer gnus-article-buffer))
174 (if (and (get-buffer article-buffer)
175 (buffer-name (get-buffer article-buffer)))
177 (set-buffer article-buffer)
179 (setq buf (buffer-substring (point-min) (point-max)))
180 (set-buffer gnus-article-copy)
182 (insert (format "%s" buf))))
185 (defun gnus-xmas-article-push-button (event)
186 "Check text under the mouse pointer for a callback function.
187 If the text under the mouse pointer has a `gnus-callback' property,
188 call it with the value of the `gnus-data' text property."
190 (set-buffer (window-buffer (event-window event)))
191 (let* ((pos (event-closest-point event))
192 (data (get-text-property pos 'gnus-data))
193 (fun (get-text-property pos 'gnus-callback)))
194 (if fun (funcall fun data))))
196 (defun gnus-xmas-move-overlay (extent start end &optional buffer)
197 (set-extent-endpoints extent start end))
199 ;; Fixed by Christopher Davis <ckd@loiosh.kei.com>.
200 (defun gnus-xmas-article-add-button (from to fun &optional data)
201 "Create a button between FROM and TO with callback FUN and data DATA."
202 (and gnus-article-button-face
203 (gnus-overlay-put (gnus-make-overlay from to)
204 'face gnus-article-button-face))
208 (and gnus-article-mouse-face
209 (list 'mouse-face gnus-article-mouse-face))
210 (list 'gnus-callback fun)
211 (and data (list 'gnus-data data))
212 (list 'highlight t))))
214 (defun gnus-xmas-window-top-edge (&optional window)
215 (nth 1 (window-pixel-edges window)))
217 (defun gnus-xmas-tree-minimize ()
218 (when (and gnus-tree-minimize-window
219 (not (one-window-p)))
220 (let* ((window-min-height 2)
221 (height (1+ (count-lines (point-min) (point-max))))
222 (min (max (1- window-min-height) height))
223 (tot (if (numberp gnus-tree-minimize-window)
224 (min gnus-tree-minimize-window min)
226 (win (get-buffer-window (current-buffer)))
227 (wh (and win (1- (window-height win)))))
230 (let ((selected (selected-window)))
232 (enlarge-window (- tot wh))
233 (select-window selected))))))
235 ;; Select the lowest window on the frame.
236 (defun gnus-xmas-appt-select-lowest-window ()
237 (let* ((lowest-window (selected-window))
238 (bottom-edge (car (cdr (cdr (cdr (window-pixel-edges))))))
239 (last-window (previous-window))
242 (let* ((this-window (next-window))
243 (next-bottom-edge (car (cdr (cdr (cdr
246 (if (< bottom-edge next-bottom-edge)
248 (setq bottom-edge next-bottom-edge)
249 (setq lowest-window this-window)))
251 (select-window this-window)
252 (if (eq last-window this-window)
254 (select-window lowest-window)
255 (setq window-search nil)))))))
257 (defmacro gnus-xmas-menu-add (type &rest menus)
258 `(gnus-xmas-menu-add-1 ',type ',menus))
259 (put 'gnus-xmas-menu-add 'lisp-indent-function 1)
260 (put 'gnus-xmas-menu-add 'lisp-indent-hook 1)
262 (defun gnus-xmas-menu-add-1 (type menus)
263 (when (and menu-bar-mode
264 (gnus-visual-p (intern (format "%s-menu" type)) 'menu))
266 (easy-menu-add (symbol-value (pop menus))))))
268 (defun gnus-xmas-group-menu-add ()
269 (gnus-xmas-menu-add group
270 gnus-group-reading-menu gnus-group-group-menu gnus-group-misc-menu))
272 (defun gnus-xmas-summary-menu-add ()
273 (gnus-xmas-menu-add summary
274 gnus-summary-article-menu gnus-summary-thread-menu
275 gnus-summary-misc-menu gnus-summary-post-menu gnus-summary-kill-menu))
277 (defun gnus-xmas-article-menu-add ()
278 (gnus-xmas-menu-add article
279 gnus-article-article-menu gnus-article-treatment-menu))
281 (defun gnus-xmas-pick-menu-add ()
282 (gnus-xmas-menu-add pick
285 (defun gnus-xmas-binary-menu-add ()
286 (gnus-xmas-menu-add binary
289 (defun gnus-xmas-tree-menu-add ()
290 (gnus-xmas-menu-add tree
293 (defun gnus-xmas-grouplens-menu-add ()
294 (gnus-xmas-menu-add grouplens
295 gnus-grouplens-menu))
297 (defun gnus-xmas-read-event-char ()
298 "Get the next event."
299 (let ((event (next-event)))
300 ;; We junk all non-key events. Is this naughty?
301 (while (not (key-press-event-p event))
302 (setq event (next-event)))
303 (cons (and (key-press-event-p event)
304 ; (numberp (event-key event))
305 (event-to-character event))
308 (defun gnus-xmas-seconds-since-epoch (date)
309 "Return a floating point number that says how many seconds have lapsed between Jan 1 12:00:00 1970 and DATE."
310 (let* ((tdate (mapcar (lambda (ti) (and ti (string-to-int ti)))
311 (timezone-parse-date date)))
312 (ttime (mapcar (lambda (ti) (and ti (string-to-int ti)))
314 (aref (timezone-parse-date date) 3))))
315 (edate (mapcar (lambda (ti) (and ti (string-to-int ti)))
316 (timezone-parse-date "Jan 1 12:00:00 1970")))
317 (tday (- (timezone-absolute-from-gregorian
318 (nth 1 tdate) (nth 2 tdate) (nth 0 tdate))
319 (timezone-absolute-from-gregorian
320 (nth 1 edate) (nth 2 edate) (nth 0 edate)))))
323 (* (float (nth 0 ttime)) 60 60)
324 (* (float tday) 60 60 24))))
326 (defun gnus-xmas-define ()
327 (setq gnus-mouse-2 [button2])
329 (or (memq 'underline (list-faces))
330 (and (fboundp 'make-face)
331 (funcall (intern "make-face") 'underline)))
332 ;; Must avoid calling set-face-underline-p directly, because it
333 ;; is a defsubst in emacs19, and will make the .elc files non
335 (or (face-differs-from-default-p 'underline)
336 (funcall (intern "set-face-underline-p") 'underline t))
338 (fset 'gnus-make-overlay 'make-extent)
339 (fset 'gnus-overlay-put 'set-extent-property)
340 (fset 'gnus-move-overlay 'gnus-xmas-move-overlay)
341 (fset 'gnus-overlay-end 'extent-end-position)
342 (fset 'gnus-extent-detached-p 'extent-detached-p)
344 (require 'text-props)
345 (if (< emacs-minor-version 14)
346 (fset 'gnus-set-text-properties 'gnus-xmas-set-text-properties))
348 (fset 'nnheader-find-file-noselect 'gnus-xmas-find-file-noselect)
350 (or (boundp 'standard-display-table) (setq standard-display-table nil))
352 (defvar gnus-mouse-face-prop 'highlight)
354 (unless (fboundp 'encode-time)
355 (defun encode-time (sec minute hour day month year &optional zone)
357 (gnus-xmas-seconds-since-epoch
358 (timezone-make-arpa-date
359 year month day (timezone-make-time-string hour minute sec)
361 (list (floor (/ seconds (expt 2 16)))
362 (round (mod seconds (expt 2 16)))))))
364 (defun gnus-byte-code (func)
365 "Return a form that can be `eval'ed based on FUNC."
366 (let ((fval (symbol-function func)))
367 (if (byte-code-function-p fval)
369 (cons 'progn (cdr (cdr fval))))))
371 ;; Fix by "jeff (j.d.) sparkes" <jsparkes@bnr.ca>.
372 (defvar gnus-display-type (device-class)
373 "A symbol indicating the display Emacs is running under.
374 The symbol should be one of `color', `grayscale' or `mono'. If Emacs
375 guesses this display attribute wrongly, either set this variable in
376 your `~/.emacs' or set the resource `Emacs.displayType' in your
377 `~/.Xdefaults'. See also `gnus-background-mode'.
379 This is a meta-variable that will affect what default values other
380 variables get. You would normally not change this variable, but
381 pounce directly on the real variables themselves.")
384 (fset 'gnus-x-color-values
385 (if (fboundp 'x-color-values)
388 (color-instance-rgb-components
389 (make-color-instance color)))))
391 (defvar gnus-background-mode
394 (x-get-resource ".backgroundMode" "BackgroundMode" 'string)
396 (params (frame-parameters))
397 (color (condition-case ()
398 (or (assq 'background-color params)
401 (face-background 'default))))
403 (cond (bg-resource (intern (downcase bg-resource)))
405 (< (apply '+ (gnus-x-color-values color))
406 (/ (apply '+ (gnus-x-color-values "white")) 3)))
409 "A symbol indicating the Emacs background brightness.
410 The symbol should be one of `light' or `dark'.
411 If Emacs guesses this frame attribute wrongly, either set this variable in
412 your `~/.emacs' or set the resource `Emacs.backgroundMode' in your
414 See also `gnus-display-type'.
416 This is a meta-variable that will affect what default values other
417 variables get. You would normally not change this variable, but
418 pounce directly on the real variables themselves.")
423 (defun gnus-xmas-redefine ()
424 "Redefine lots of Gnus functions for XEmacs."
425 (fset 'gnus-summary-make-display-table 'ignore)
426 (fset 'gnus-visual-turn-off-edit-menu 'identity)
427 (fset 'gnus-highlight-selected-summary
428 'gnus-xmas-highlight-selected-summary)
429 (fset 'gnus-summary-recenter 'gnus-xmas-summary-recenter)
430 (fset 'gnus-group-remove-excess-properties
431 'gnus-xmas-group-remove-excess-properties)
432 (fset 'gnus-topic-remove-excess-properties
433 'gnus-xmas-topic-remove-excess-properties)
434 (fset 'gnus-extent-start-open 'gnus-xmas-extent-start-open)
435 (fset 'gnus-copy-article-buffer 'gnus-xmas-copy-article-buffer)
436 (fset 'gnus-article-push-button 'gnus-xmas-article-push-button)
437 (fset 'gnus-article-add-button 'gnus-xmas-article-add-button)
438 (fset 'gnus-window-top-edge 'gnus-xmas-window-top-edge)
439 (fset 'gnus-read-event-char 'gnus-xmas-read-event-char)
440 (fset 'gnus-group-startup-message 'gnus-xmas-group-startup-message)
441 (fset 'gnus-tree-minimize 'gnus-xmas-tree-minimize)
442 (fset 'gnus-appt-select-lowest-window
443 'gnus-xmas-appt-select-lowest-window)
444 (fset 'gnus-mail-strip-quoted-names 'gnus-xmas-mail-strip-quoted-names)
445 (fset 'gnus-make-local-hook 'make-local-variable)
446 (fset 'gnus-character-to-event 'character-to-event)
448 (add-hook 'gnus-group-mode-hook 'gnus-xmas-group-menu-add)
449 (add-hook 'gnus-summary-mode-hook 'gnus-xmas-summary-menu-add)
450 (add-hook 'gnus-article-mode-hook 'gnus-xmas-article-menu-add)
452 (add-hook 'gnus-pick-mode-hook 'gnus-xmas-pick-menu-add)
453 (add-hook 'gnus-tree-mode-hook 'gnus-xmas-tree-menu-add)
454 (add-hook 'gnus-binary-mode-hook 'gnus-xmas-binary-menu-add)
455 (add-hook 'gnus-grouplens-mode-hook 'gnus-xmas-grouplens-menu-add)
457 (add-hook 'gnus-group-mode-hook 'gnus-xmas-setup-group-toolbar)
458 (add-hook 'gnus-summary-mode-hook 'gnus-xmas-setup-summary-toolbar))
461 ;;; XEmacs logo and toolbar.
463 (defun gnus-xmas-group-startup-message (&optional x y)
464 "Insert startup message in current buffer."
465 ;; Insert the message.
466 (setq gnus-xmas-glyph-directory (message-xmas-find-glyph-directory "gnus"))
468 (let ((file (and gnus-xmas-glyph-directory
470 (file-name-as-directory gnus-xmas-glyph-directory)
472 (if (and (featurep 'xpm)
473 (not (equal (device-type) 'tty))
474 file (file-exists-p file))
476 (set-glyph-property gnus-xmas-logo 'image file)
477 (set-glyph-image gnus-xmas-logo file 'global 'x)
480 (set-extent-begin-glyph (make-extent (point) (point)) gnus-xmas-logo)
481 (goto-char (point-min))
483 (insert (make-string (/ (max (- (window-width) (or x 35)) 0) 2)
486 (goto-char (point-min))
487 (let* ((pheight (+ 20 (count-lines (point-min) (point-max))))
488 (wheight (window-height))
489 (rest (- wheight pheight)))
490 (insert (make-string (max 0 (* 2 (/ rest 3))) ?\n))))
495 _ ___ __ ___ __ _ ___
515 (gnus-indent-rigidly (point-min) (point-max)
516 (/ (max (- (window-width) (or x 46)) 0) 2))
517 (goto-char (point-min))
519 (let* ((pheight (count-lines (point-min) (point-max)))
520 (wheight (window-height))
521 (rest (- wheight pheight)))
522 (insert (make-string (max 0 (* 2 (/ rest 3))) ?\n))))
524 (goto-char (point-min))
525 (and (search-forward "Praxis" nil t)
526 (put-text-property (match-beginning 0) (match-end 0) 'face 'bold))
527 (goto-char (point-min))
528 (let* ((mode-string (gnus-group-set-mode-line)))
529 (setq mode-line-buffer-identification
530 (list (concat gnus-version (substring (car mode-string) 4))))
531 (set-buffer-modified-p t))))
536 (defvar gnus-use-toolbar 'default-toolbar
537 "*If nil, do not use a toolbar.
538 If it is non-nil, it must be a toolbar. The five legal values are
539 `default-toolbar', `top-toolbar', `bottom-toolbar',
540 `right-toolbar', and `left-toolbar'.")
542 (defvar gnus-group-toolbar
543 '([gnus-group-exit-icon gnus-group-exit t "Exit Gnus"]
544 [gnus-group-kill-group-icon gnus-group-kill-group t "Kill group"]
545 [gnus-group-get-new-news-icon gnus-group-get-new-news t "Get new news"]
546 [gnus-group-get-new-news-this-group-icon
547 gnus-group-get-new-news-this-group t "Get new news in this group"]
548 [gnus-group-catchup-current-icon
549 gnus-group-catchup-current t "Catchup group"]
550 [gnus-group-describe-group-icon
551 gnus-group-describe-group t "Describe group"])
552 "The group buffer toolbar.")
554 (defvar gnus-summary-toolbar
555 '([gnus-summary-post-news-icon
556 gnus-summary-post-news t "Post an article"]
557 [gnus-summary-save-article-file-icon
558 gnus-summary-save-article-file t "Save article in file"]
559 [gnus-summary-save-article-icon
560 gnus-summary-save-article t "Save article"]
561 [gnus-summary-reply-icon
562 gnus-summary-reply t "Mail a reply"]
563 [gnus-summary-reply-with-original-icon
564 gnus-summary-reply-with-original t "Mail a reply and yank the original"]
565 [gnus-summary-followup-icon
566 gnus-summary-followup t "Post a followup"]
567 [gnus-summary-followup-with-original-icon
568 gnus-summary-followup-with-original t
569 "Post a followup and yank the original"]
570 [gnus-uu-decode-uu-icon
571 gnus-uu-decode-uu t "Decode uuencoded articles"]
572 [gnus-uu-post-news-icon
573 gnus-uu-post-news t "Post an uuencoded article"]
574 [gnus-summary-caesar-message-icon
575 gnus-summary-caesar-message t "Rot 13"]
576 [gnus-summary-cancel-article-icon
577 gnus-summary-cancel-article t "Cancel article"])
578 "The summary buffer toolbar.")
580 (defun gnus-xmas-setup-group-toolbar ()
582 (and gnus-use-toolbar
583 (setq dir (message-xmas-setup-toolbar gnus-group-toolbar nil "gnus"))
584 (file-exists-p (concat dir "gnus-group-catchup-current-icon-up.xpm"))
585 (set-specifier (symbol-value gnus-use-toolbar)
586 (cons (current-buffer) gnus-group-toolbar)))))
588 (defun gnus-xmas-setup-summary-toolbar ()
590 (and gnus-use-toolbar
591 (setq dir (message-xmas-setup-toolbar gnus-summary-toolbar
593 (file-exists-p (concat dir "gnus-group-catchup-current-icon-up.xpm"))
594 (set-specifier (symbol-value gnus-use-toolbar)
595 (cons (current-buffer) gnus-summary-toolbar)))))
597 ;; Written by Erik Naggum <erik@naggum.no>.
598 ;; Saved by Steve Baur <steve@miranova.com>.
599 (or (fboundp 'insert-file-contents-literally)
600 (defun insert-file-contents-literally (filename &optional visit beg end replace)
601 "Like `insert-file-contents', q.v., but only reads in the file.
602 A buffer may be modified in several ways after reading into the buffer due
603 to advanced Emacs features, such as file-name-handlers, format decoding,
604 find-file-hooks, etc.
605 This function ensures that none of these modifications will take place."
606 (let ( ; (file-name-handler-alist nil)
608 (after-insert-file-functions nil)
609 (find-buffer-file-type-function
610 (if (fboundp 'find-buffer-file-type)
611 (symbol-function 'find-buffer-file-type)
615 (fset 'find-buffer-file-type (lambda (filename) t))
616 (insert-file-contents filename visit beg end replace))
617 (if find-buffer-file-type-function
618 (fset 'find-buffer-file-type find-buffer-file-type-function)
619 (fmakunbound 'find-buffer-file-type))))))
621 (defun gnus-xmas-find-file-noselect (filename &optional nowarn rawfile)
622 "Read file FILENAME into a buffer and return the buffer.
623 If a buffer exists visiting FILENAME, return that one, but
624 verify that the file has not changed since visited or saved.
625 The buffer is not selected, just returned to the caller."
627 (abbreviate-file-name
628 (expand-file-name filename)))
629 (if (file-directory-p filename)
630 (if find-file-run-dired
631 (dired-noselect filename)
632 (error "%s is a directory." filename))
633 (let* ((buf (get-file-buffer filename))
634 (truename (abbreviate-file-name (file-truename filename)))
635 (number (nthcdr 10 (file-attributes truename)))
636 ;; Find any buffer for a file which has same truename.
637 (other (and (not buf)
638 (if (fboundp 'find-buffer-visiting)
639 (find-buffer-visiting filename)
640 (get-file-buffer filename))))
642 ;; Let user know if there is a buffer with the same truename.
646 (string-equal filename (buffer-file-name other))
647 (message "%s and %s are the same file"
648 filename (buffer-file-name other)))
649 ;; Optionally also find that buffer.
650 (if (or (and (boundp 'find-file-existing-other-name)
651 find-file-existing-other-name)
652 find-file-visit-truename)
656 (verify-visited-file-modtime buf)
657 (cond ((not (file-exists-p filename))
658 (error "File %s no longer exists!" filename))
660 (if (string= (file-name-nondirectory filename)
663 (if (buffer-modified-p buf)
664 "File %s changed on disk. Discard your edits? "
665 "File %s changed on disk. Reread from disk? ")
666 (file-name-nondirectory filename))
668 (if (buffer-modified-p buf)
669 "File %s changed on disk. Discard your edits in %s? "
670 "File %s changed on disk. Reread from disk into %s? ")
671 (file-name-nondirectory filename)
675 (revert-buffer t t)))))
677 ;;; The truename stuff makes this obsolete.
678 ;;; (let* ((link-name (car (file-attributes filename)))
679 ;;; (linked-buf (and (stringp link-name)
680 ;;; (get-file-buffer link-name))))
681 ;;; (if (bufferp linked-buf)
682 ;;; (message "Symbolic link to file in buffer %s"
683 ;;; (buffer-name linked-buf))))
684 (setq buf (create-file-buffer filename))
685 ;; (set-buffer-major-mode buf)
690 (insert-file-contents-literally filename t)
692 ;; Unconditionally set error
695 (insert-file-contents filename t)
697 ;; Run find-file-not-found-hooks until one returns non-nil.
698 (or t ; (run-hook-with-args-until-success 'find-file-not-found-hooks)
699 ;; If they fail too, set error.
701 ;; Find the file's truename, and maybe use that as visited name.
702 (setq buffer-file-truename truename)
703 (setq buffer-file-number number)
704 ;; On VMS, we may want to remember which directory in a search list
705 ;; the file was found in.
706 (and (eq system-type 'vax-vms)
708 (if (string-match ":" (file-name-directory filename))
709 (setq logical (substring (file-name-directory filename)
710 0 (match-beginning 0))))
711 (not (member logical find-file-not-true-dirname-list)))
712 (setq buffer-file-name buffer-file-truename))
713 (if find-file-visit-truename
714 (setq buffer-file-name
716 (expand-file-name buffer-file-truename))))
717 ;; Set buffer's default directory to that of the file.
718 (setq default-directory (file-name-directory filename))
719 ;; Turn off backup files for certain file names. Since
720 ;; this is a permanent local, the major mode won't eliminate it.
721 (and (not (funcall backup-enable-predicate buffer-file-name))
723 (make-local-variable 'backup-inhibited)
724 (setq backup-inhibited t)))
727 (after-find-file error (not nowarn)))))
730 (defun gnus-xmas-mail-strip-quoted-names (address)
731 "Protect mail-strip-quoted-names from NIL input.
732 XEmacs compatibility workaround."
735 (mail-strip-quoted-names address)))
737 ;;; gnus-xmas.el ends here