1 ;;; mh-show.el --- MH-Show mode
3 ;; Copyright (C) 1993, 1995, 1997, 2000-2017 Free Software Foundation,
6 ;; Author: Bill Wohler <wohler@newt.com>
7 ;; Maintainer: Bill Wohler <wohler@newt.com>
11 ;; This file is part of GNU Emacs.
13 ;; GNU Emacs is free software: you can redistribute it and/or modify
14 ;; it under the terms of the GNU General Public License as published by
15 ;; the Free Software Foundation, either version 3 of the License, or
16 ;; (at your option) any later version.
18 ;; GNU Emacs is distributed in the hope that it will be useful,
19 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 ;; GNU General Public License for more details.
23 ;; You should have received a copy of the GNU General Public License
24 ;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
28 ;; Mode for showing messages.
37 ;; Dynamically-created function not found in mh-loaddefs.el.
38 (autoload 'mh-tool-bar-init
"mh-tool-bar")
45 (autoload 'mh-make-buffer-data
"mh-mime") ;can't be automatically generated
49 ;;; MH-Folder Commands
51 (defvar mh-showing-with-headers nil
52 "If non-nil, MH-Show buffer contains message with all header fields.
53 If nil, MH-Show buffer contains message processed normally.")
56 (defun mh-show (&optional message redisplay-flag
)
57 "Display message\\<mh-folder-mode-map>.
59 If the message under the cursor is already displayed, this command
60 scrolls to the beginning of the message. MH-E normally hides a lot of
61 the superfluous header fields that mailers add to a message, but if
62 you wish to see all of them, use the command \\[mh-header-display].
64 Two hooks can be used to control how messages are displayed. The
65 first hook, `mh-show-mode-hook', is called early on in the
66 process of the message display. It is usually used to perform
67 some action on the message's content. The second hook,
68 `mh-show-hook', is the last thing called after messages are
69 displayed. It's used to affect the behavior of MH-E in general or
70 when `mh-show-mode-hook' is too early.
72 From a program, optional argument MESSAGE can be used to display an
73 alternative message. The optional argument REDISPLAY-FLAG forces the
74 redisplay of the message even if the show buffer was already
75 displaying the correct message.
77 See the \"mh-show\" customization group for a litany of options that
78 control what displayed messages look like."
79 (interactive (list nil t
))
80 (when (or redisplay-flag
81 (and mh-showing-with-headers
82 (or mh-mhl-format-file mh-clean-message-header-flag
)))
83 (mh-invalidate-show-buffer))
84 (mh-show-msg message
))
87 (defun mh-header-display ()
88 "Display message with all header fields\\<mh-folder-mode-map>.
90 Use the command \\[mh-show] to show the message normally again."
92 (and (not mh-showing-with-headers
)
93 (or mh-mhl-format-file mh-clean-message-header-flag
)
94 (mh-invalidate-show-buffer))
95 (let ((mh-decode-mime-flag nil
)
96 (mh-mhl-format-file nil
)
97 (mh-clean-message-header-flag nil
))
99 (mh-in-show-buffer (mh-show-buffer)
100 (goto-char (point-min))
102 (setq mh-showing-with-headers t
)))
105 (defun mh-show-preferred-alternative ()
106 "Display message with the default preferred alternative.
107 This is as if `mm-discouraged-alternatives' is set to nil.
109 Use the command \\[mh-show] to show the message normally again."
112 ((mm-discouraged-alternatives))
117 ;;; Support Routines for MH-Folder Commands
120 (defun mh-maybe-show (&optional msg
)
121 "Display message at cursor, but only if in show mode.
122 If optional arg MSG is non-nil, display that message instead."
123 (if mh-showing-mode
(mh-show msg
)))
125 (defun mh-show-msg (msg)
128 The hook `mh-show-hook' is called after the message has been
131 (setq msg
(mh-get-msg-num t
)))
133 (setq mh-page-to-next-msg-flag nil
)
134 (let ((folder mh-current-folder
)
135 (folders (list mh-current-folder
))
136 (clean-message-header mh-clean-message-header-flag
)
137 (show-window (get-buffer-window mh-show-buffer
))
138 (display-mime-buttons-flag mh-display-buttons-for-inline-parts-flag
))
139 (if (not (eq (next-window (minibuffer-window)) (selected-window)))
140 (delete-other-windows)) ; force ourself to the top window
141 (mh-in-show-buffer (mh-show-buffer)
142 (setq mh-display-buttons-for-inline-parts-flag display-mime-buttons-flag
)
144 (equal (mh-msg-filename msg folder
) buffer-file-name
))
145 (progn ;just back up to start
146 (goto-char (point-min))
147 (if (not clean-message-header
)
148 (mh-start-of-uncleaned-message)))
149 (mh-display-msg msg folder
)))
150 (unless (mh-window-full-height-p) ; not vertically split
151 (shrink-window (- (window-height) (or mh-summary-height
152 (mh-summary-height)))))
154 ;; The following line is a nop which forces update of the scan line so
155 ;; that font-lock will update it (if needed)...
156 (mh-notate nil nil mh-cmd-note
)
157 (if (not (memq msg mh-seen-list
))
158 (setq mh-seen-list
(cons msg mh-seen-list
)))
159 (when mh-update-sequences-after-mh-show-flag
160 (mh-update-sequences)
163 (append (mh-index-delete-from-sequence mh-unseen-seq
(list msg
))
165 (when (mh-speed-flists-active-p)
166 (apply #'mh-speed-flists t folders
)))
167 (run-hooks 'mh-show-hook
)))
170 (defun mh-start-of-uncleaned-message ()
171 "Position uninteresting headers off the top of the window."
172 (let ((case-fold-search t
))
174 "^To:\\|^Cc:\\|^From:\\|^Subject:\\|^Date:" nil t
)
178 (defvar mh-show-buffer-mode-line-buffer-id
" {show-%s} %d"
179 "Format string to produce `mode-line-buffer-identification' for show buffers.
181 First argument is folder name. Second is message number.")
184 (defun mh-display-msg (msg-num folder-name
)
185 "Display MSG-NUM of FOLDER-NAME.
186 Sets the current buffer to the show buffer."
187 (let ((folder (mh-msg-folder folder-name
)))
189 ;; When Gnus uses external displayers it has to keep handles longer. So
190 ;; we will delete these handles when mh-quit is called on the folder. It
191 ;; would be nicer if there are weak pointers in emacs lisp, then we could
192 ;; get the garbage collector to do this for us.
193 (unless (mh-buffer-data)
194 (setf (mh-buffer-data) (mh-make-buffer-data)))
195 ;; Bind variables in folder buffer in case they are local
196 (let ((formfile mh-mhl-format-file
)
197 (clean-message-header mh-clean-message-header-flag
)
198 (invisible-headers mh-invisible-header-fields-compiled
)
199 (visible-headers nil
)
200 (msg-filename (mh-msg-filename msg-num folder-name
))
201 (show-buffer mh-show-buffer
)
202 (mm-inline-media-tests mh-mm-inline-media-tests
))
203 (if (not (file-exists-p msg-filename
))
204 (error "Message %d does not exist" msg-num
))
205 (if (and (> mh-show-maximum-size
0)
206 (> (elt (file-attributes msg-filename
) 7)
207 mh-show-maximum-size
)
210 "Message %d (%d bytes) exceeds %d bytes. Display it? "
211 msg-num
(elt (file-attributes msg-filename
) 7)
212 mh-show-maximum-size
))))
213 (error "Message %d not displayed" msg-num
))
214 (set-buffer show-buffer
)
215 (cond ((not (equal msg-filename buffer-file-name
))
217 (setq buffer-read-only nil
)
218 ;; Cleanup old mime handles
221 ;; Changing contents, so this hook needs to be reinitialized.
223 (if (boundp 'write-contents-hooks
) ;Emacs 19
224 (kill-local-variable 'write-contents-hooks
))
226 (mh-exec-lib-cmd-output "mhl" "-nobell" "-noclear"
227 (if (stringp formfile
)
228 (list "-form" formfile
))
230 (insert-file-contents-literally msg-filename
))
231 ;; Use mm to display buffer
232 (when (and mh-decode-mime-flag
(not formfile
))
233 (mh-add-missing-mime-version-header)
234 (setf (mh-buffer-data) (mh-make-buffer-data))
238 (goto-char (point-min))
239 (cond (clean-message-header
240 (mh-clean-msg-header (point-min)
243 (goto-char (point-min)))
245 (mh-start-of-uncleaned-message)))
246 (mh-decode-message-header)
247 ;; the parts of visiting we want to do (no locking)
248 (or (eq buffer-undo-list t
) ;don't save undo info for prev msgs
249 (setq buffer-undo-list nil
))
250 (set-buffer-auto-saved)
251 ;; the parts of set-visited-file-name we want to do (no locking)
252 (setq buffer-file-name msg-filename
)
253 (setq buffer-backed-up nil
)
257 (when (and mh-decode-mime-flag
(not formfile
))
258 (setq buffer-read-only nil
)
260 (mh-display-emphasis))
261 (setq buffer-read-only t
))
262 (set-buffer-modified-p nil
)
263 (setq mh-show-folder-buffer folder
)
264 (setq mode-line-buffer-identification
265 (list (format mh-show-buffer-mode-line-buffer-id
266 folder-name msg-num
)))
269 (setq mh-showing-with-headers nil
))))))
271 (defun mh-msg-folder (folder-name)
272 "Return the name of the buffer for FOLDER-NAME."
276 (defun mh-clean-msg-header (start invisible-headers visible-headers
)
277 "Flush extraneous lines in message header.
279 Header is cleaned from START to the end of the message header.
280 INVISIBLE-HEADERS contains a regular expression specifying lines
281 to delete from the header. VISIBLE-HEADERS contains a regular
282 expression specifying the lines to display. INVISIBLE-HEADERS is
283 ignored if VISIBLE-HEADERS is non-nil."
284 ;; XXX Note that MH-E no longer supports the `mh-visible-headers'
285 ;; variable, so this function could be trimmed of this feature too."
286 (let ((case-fold-search t
)
287 (buffer-read-only nil
))
290 (if (search-forward "\n\n" nil
'move
)
292 (narrow-to-region start
(point))
293 (goto-char (point-min))
295 (while (< (point) (point-max))
296 (cond ((looking-at visible-headers
)
298 (while (looking-at "[ \t]") (forward-line 1)))
301 (while (looking-at "[ \t]")
302 (mh-delete-line 1)))))
303 (while (re-search-forward invisible-headers nil t
)
306 (while (looking-at "[ \t]")
307 (mh-delete-line 1)))))
308 (let ((mh-compose-skipped-header-fields ()))
309 (mh-letter-hide-all-skipped-fields))
313 (defun mh-invalidate-show-buffer ()
314 "Invalidate the show buffer so we must update it to use it."
315 (if (get-buffer mh-show-buffer
)
316 (with-current-buffer mh-show-buffer
319 (defun mh-unvisit-file ()
320 "Separate current buffer from the message file it was visiting."
321 (or (not (buffer-modified-p))
322 (null buffer-file-name
) ;we've been here before
323 (yes-or-no-p (format "Message %s modified; discard changes? "
324 (file-name-nondirectory buffer-file-name
)))
325 (error "Changes preserved"))
326 (clear-visited-file-modtime)
328 (setq buffer-file-name nil
))
330 (defun mh-summary-height ()
331 "Return ideal value for the variable `mh-summary-height'.
332 The current frame height is taken into consideration."
333 (or (and (fboundp 'frame-height
)
334 (> (frame-height) 24)
335 (min 10 (/ (frame-height) 6)))
340 ;; Infrastructure to generate show-buffer functions from folder functions
341 ;; XEmacs does not have deactivate-mark? What is the equivalent of
342 ;; transient-mark-mode for XEmacs? Should we be restoring the mark in the
343 ;; folder buffer after the operation has been carried out.
344 (defmacro mh-defun-show-buffer
(function original-function
345 &optional dont-return
)
346 "Define FUNCTION to run ORIGINAL-FUNCTION in folder buffer.
347 If the buffer we start in is still visible and DONT-RETURN is nil
348 then switch to it after that."
350 ,(format "Calls %s from the message's folder.\n%s\nSee `%s' for more info.\n"
353 "When function completes, returns to the show buffer if it is
357 (when (buffer-live-p (get-buffer mh-show-folder-buffer
))
358 (let ((config (current-window-configuration))
359 (folder-buffer mh-show-folder-buffer
)
361 ,@(if dont-return
() '((cur-buffer-name (buffer-name)))))
362 (pop-to-buffer mh-show-folder-buffer nil
)
363 (unless (equal (buffer-name
364 (window-buffer (frame-first-window (selected-frame))))
366 (delete-other-windows))
368 (mh-funcall-if-exists deactivate-mark
)
370 (prog1 (call-interactively (function ,original-function
))
371 (setq normal-exit t
))
372 (mh-funcall-if-exists deactivate-mark
)
373 (when (eq major-mode
'mh-folder-mode
)
374 (mh-funcall-if-exists hl-line-highlight
))
375 (cond ((not normal-exit
)
376 (set-window-configuration config
))
378 `(t (setq mh-previous-window-config config
))
379 `((and (get-buffer cur-buffer-name
)
380 (window-live-p (get-buffer-window
381 (get-buffer cur-buffer-name
))))
382 (pop-to-buffer (get-buffer cur-buffer-name
) nil
)))))))))
384 ;; Generate interactive functions for the show buffer from the corresponding
386 (mh-defun-show-buffer mh-show-previous-undeleted-msg
387 mh-previous-undeleted-msg
)
388 (mh-defun-show-buffer mh-show-next-undeleted-msg
389 mh-next-undeleted-msg
)
390 (mh-defun-show-buffer mh-show-quit mh-quit
)
391 (mh-defun-show-buffer mh-show-delete-msg mh-delete-msg
)
392 (mh-defun-show-buffer mh-show-refile-msg mh-refile-msg
)
393 (mh-defun-show-buffer mh-show-undo mh-undo
)
394 (mh-defun-show-buffer mh-show-execute-commands mh-execute-commands
)
395 (mh-defun-show-buffer mh-show-reply mh-reply t
)
396 (mh-defun-show-buffer mh-show-redistribute mh-redistribute
)
397 (mh-defun-show-buffer mh-show-forward mh-forward t
)
398 (mh-defun-show-buffer mh-show-header-display mh-header-display
)
399 (mh-defun-show-buffer mh-show-refile-or-write-again
400 mh-refile-or-write-again
)
401 (mh-defun-show-buffer mh-show-show mh-show
)
402 (mh-defun-show-buffer mh-show-show-preferred-alternative mh-show-preferred-alternative
)
403 (mh-defun-show-buffer mh-show-write-message-to-file
404 mh-write-msg-to-file
)
405 (mh-defun-show-buffer mh-show-extract-rejected-mail
406 mh-extract-rejected-mail t
)
407 (mh-defun-show-buffer mh-show-delete-msg-no-motion
408 mh-delete-msg-no-motion
)
409 (mh-defun-show-buffer mh-show-first-msg mh-first-msg
)
410 (mh-defun-show-buffer mh-show-last-msg mh-last-msg
)
411 (mh-defun-show-buffer mh-show-copy-msg mh-copy-msg
)
412 (mh-defun-show-buffer mh-show-edit-again mh-edit-again t
)
413 (mh-defun-show-buffer mh-show-goto-msg mh-goto-msg
)
414 (mh-defun-show-buffer mh-show-inc-folder mh-inc-folder
)
415 (mh-defun-show-buffer mh-show-delete-subject-or-thread
416 mh-delete-subject-or-thread
)
417 (mh-defun-show-buffer mh-show-delete-subject mh-delete-subject
)
418 (mh-defun-show-buffer mh-show-print-msg mh-print-msg
)
419 (mh-defun-show-buffer mh-show-send mh-send t
)
420 (mh-defun-show-buffer mh-show-toggle-showing mh-toggle-showing t
)
421 (mh-defun-show-buffer mh-show-pipe-msg mh-pipe-msg t
)
422 (mh-defun-show-buffer mh-show-sort-folder mh-sort-folder
)
423 (mh-defun-show-buffer mh-show-visit-folder mh-visit-folder t
)
424 (mh-defun-show-buffer mh-show-rescan-folder mh-rescan-folder
)
425 (mh-defun-show-buffer mh-show-pack-folder mh-pack-folder
)
426 (mh-defun-show-buffer mh-show-kill-folder mh-kill-folder t
)
427 (mh-defun-show-buffer mh-show-list-folders mh-list-folders t
)
428 (mh-defun-show-buffer mh-show-undo-folder mh-undo-folder
)
429 (mh-defun-show-buffer mh-show-delete-msg-from-seq
430 mh-delete-msg-from-seq
)
431 (mh-defun-show-buffer mh-show-delete-seq mh-delete-seq
)
432 (mh-defun-show-buffer mh-show-list-sequences mh-list-sequences
)
433 (mh-defun-show-buffer mh-show-narrow-to-seq mh-narrow-to-seq
)
434 (mh-defun-show-buffer mh-show-put-msg-in-seq mh-put-msg-in-seq
)
435 (mh-defun-show-buffer mh-show-msg-is-in-seq mh-msg-is-in-seq
)
436 (mh-defun-show-buffer mh-show-widen mh-widen
)
437 (mh-defun-show-buffer mh-show-narrow-to-subject mh-narrow-to-subject
)
438 (mh-defun-show-buffer mh-show-narrow-to-from mh-narrow-to-from
)
439 (mh-defun-show-buffer mh-show-narrow-to-cc mh-narrow-to-cc
)
440 (mh-defun-show-buffer mh-show-narrow-to-range mh-narrow-to-range
)
441 (mh-defun-show-buffer mh-show-narrow-to-to mh-narrow-to-to
)
442 (mh-defun-show-buffer mh-show-store-msg mh-store-msg
)
443 (mh-defun-show-buffer mh-show-page-digest mh-page-digest
)
444 (mh-defun-show-buffer mh-show-page-digest-backwards
445 mh-page-digest-backwards
)
446 (mh-defun-show-buffer mh-show-burst-digest mh-burst-digest
)
447 (mh-defun-show-buffer mh-show-page-msg mh-page-msg
)
448 (mh-defun-show-buffer mh-show-previous-page mh-previous-page
)
449 (mh-defun-show-buffer mh-show-modify mh-modify t
)
450 (mh-defun-show-buffer mh-show-next-button mh-next-button
)
451 (mh-defun-show-buffer mh-show-prev-button mh-prev-button
)
452 (mh-defun-show-buffer mh-show-toggle-mime-part mh-folder-toggle-mime-part
)
453 (mh-defun-show-buffer mh-show-save-mime-part mh-folder-save-mime-part
)
454 (mh-defun-show-buffer mh-show-inline-mime-part mh-folder-inline-mime-part
)
455 (mh-defun-show-buffer mh-show-toggle-threads mh-toggle-threads
)
456 (mh-defun-show-buffer mh-show-thread-delete mh-thread-delete
)
457 (mh-defun-show-buffer mh-show-thread-refile mh-thread-refile
)
458 (mh-defun-show-buffer mh-show-update-sequences mh-update-sequences
)
459 (mh-defun-show-buffer mh-show-next-unread-msg mh-next-unread-msg
)
460 (mh-defun-show-buffer mh-show-previous-unread-msg mh-previous-unread-msg
)
461 (mh-defun-show-buffer mh-show-thread-ancestor mh-thread-ancestor
)
462 (mh-defun-show-buffer mh-show-thread-next-sibling mh-thread-next-sibling
)
463 (mh-defun-show-buffer mh-show-thread-previous-sibling
464 mh-thread-previous-sibling
)
465 (mh-defun-show-buffer mh-show-index-visit-folder mh-index-visit-folder t
)
466 (mh-defun-show-buffer mh-show-toggle-tick mh-toggle-tick
)
467 (mh-defun-show-buffer mh-show-narrow-to-tick mh-narrow-to-tick
)
468 (mh-defun-show-buffer mh-show-junk-blacklist mh-junk-blacklist
)
469 (mh-defun-show-buffer mh-show-junk-whitelist mh-junk-whitelist
)
470 (mh-defun-show-buffer mh-show-index-new-messages mh-index-new-messages
)
471 (mh-defun-show-buffer mh-show-index-ticked-messages mh-index-ticked-messages
)
472 (mh-defun-show-buffer mh-show-index-sequenced-messages
473 mh-index-sequenced-messages
)
474 (mh-defun-show-buffer mh-show-catchup mh-catchup
)
475 (mh-defun-show-buffer mh-show-ps-print-toggle-color mh-ps-print-toggle-color
)
476 (mh-defun-show-buffer mh-show-ps-print-toggle-faces mh-ps-print-toggle-faces
)
477 (mh-defun-show-buffer mh-show-ps-print-msg-file mh-ps-print-msg-file
)
478 (mh-defun-show-buffer mh-show-ps-print-msg mh-ps-print-msg
)
479 (mh-defun-show-buffer mh-show-toggle-mime-buttons mh-toggle-mime-buttons
)
480 (mh-defun-show-buffer mh-show-display-with-external-viewer
481 mh-display-with-external-viewer
)
488 mh-show-sequence-menu mh-show-mode-map
"Menu for MH-E folder-sequence."
490 ["Add Message to Sequence..." mh-show-put-msg-in-seq t
]
491 ["List Sequences for Message" mh-show-msg-is-in-seq t
]
492 ["Delete Message from Sequence..." mh-show-delete-msg-from-seq t
]
493 ["List Sequences in Folder..." mh-show-list-sequences t
]
494 ["Delete Sequence..." mh-show-delete-seq t
]
495 ["Narrow to Sequence..." mh-show-narrow-to-seq t
]
496 ["Widen from Sequence" mh-show-widen t
]
498 ["Narrow to Subject Sequence" mh-show-narrow-to-subject t
]
499 ["Narrow to Tick Sequence" mh-show-narrow-to-tick
500 (with-current-buffer mh-show-folder-buffer
501 (and mh-tick-seq
(mh-seq-msgs (mh-find-seq mh-tick-seq
))))]
502 ["Delete Rest of Same Subject" mh-show-delete-subject t
]
503 ["Toggle Tick Mark" mh-show-toggle-tick t
]
505 ["Push State Out to MH" mh-show-update-sequences t
]))
510 mh-show-message-menu mh-show-mode-map
"Menu for MH-E folder-message."
512 ["Show Message" mh-show-show t
]
513 ["Show Message with Header" mh-show-header-display t
]
514 ["Show Message with Preferred Alternative"
515 mh-show-show-preferred-alternative t
]
516 ["Next Message" mh-show-next-undeleted-msg t
]
517 ["Previous Message" mh-show-previous-undeleted-msg t
]
518 ["Go to First Message" mh-show-first-msg t
]
519 ["Go to Last Message" mh-show-last-msg t
]
520 ["Go to Message by Number..." mh-show-goto-msg t
]
521 ["Modify Message" mh-show-modify t
]
522 ["Delete Message" mh-show-delete-msg t
]
523 ["Refile Message" mh-show-refile-msg t
]
524 ["Undo Delete/Refile" mh-show-undo t
]
525 ["Process Delete/Refile" mh-show-execute-commands t
]
527 ["Compose a New Message" mh-send t
]
528 ["Reply to Message..." mh-show-reply t
]
529 ["Forward Message..." mh-show-forward t
]
530 ["Redistribute Message..." mh-show-redistribute t
]
531 ["Edit Message Again" mh-show-edit-again t
]
532 ["Re-edit a Bounced Message" mh-show-extract-rejected-mail t
]
534 ["Copy Message to Folder..." mh-show-copy-msg t
]
535 ["Print Message" mh-show-print-msg t
]
536 ["Write Message to File..." mh-show-write-msg-to-file t
]
537 ["Pipe Message to Command..." mh-show-pipe-msg t
]
538 ["Unpack Uuencoded Message..." mh-show-store-msg t
]
539 ["Burst Digest Message" mh-show-burst-digest t
]))
544 mh-show-folder-menu mh-show-mode-map
"Menu for MH-E folder."
546 ["Incorporate New Mail" mh-show-inc-folder t
]
547 ["Toggle Show/Folder" mh-show-toggle-showing t
]
548 ["Execute Delete/Refile" mh-show-execute-commands t
]
549 ["Rescan Folder" mh-show-rescan-folder t
]
550 ["Thread Folder" mh-show-toggle-threads t
]
551 ["Pack Folder" mh-show-pack-folder t
]
552 ["Sort Folder" mh-show-sort-folder t
]
554 ["List Folders" mh-show-list-folders t
]
555 ["Visit a Folder..." mh-show-visit-folder t
]
556 ["View New Messages" mh-show-index-new-messages t
]
557 ["Search..." mh-search t
]
559 ["Quit MH-E" mh-quit t
]))
565 (gnus-define-keys mh-show-mode-map
567 "!" mh-show-refile-or-write-again
568 "'" mh-show-toggle-tick
569 "," mh-show-header-display
571 ":" mh-show-show-preferred-alternative
572 ">" mh-show-write-message-to-file
574 "E" mh-show-extract-rejected-mail
576 "\177" mh-show-previous-page
577 "\C-d" mh-show-delete-msg-no-motion
578 "\t" mh-show-next-button
579 [backtab] mh-show-prev-button
580 "\M-\t" mh-show-prev-button
581 "\ed" mh-show-redistribute
582 "^" mh-show-refile-msg
584 "d" mh-show-delete-msg
585 "e" mh-show-edit-again
588 "i" mh-show-inc-folder
589 "k" mh-show-delete-subject-or-thread
591 "n" mh-show-next-undeleted-msg
592 "\M-n" mh-show-next-unread-msg
593 "o" mh-show-refile-msg
594 "p" mh-show-previous-undeleted-msg
595 "\M-p" mh-show-previous-unread-msg
599 "t" mh-show-toggle-showing
601 "x" mh-show-execute-commands
602 "v" mh-show-index-visit-folder
603 "|" mh-show-pipe-msg)
605 (gnus-define-keys (mh-show-folder-map "F" mh-show-mode-map)
607 "'" mh-index-ticked-messages
608 "S" mh-show-sort-folder
610 "f" mh-show-visit-folder
611 "k" mh-show-kill-folder
612 "l" mh-show-list-folders
613 "n" mh-index-new-messages
614 "o" mh-show-visit-folder
615 "p" mh-show-pack-folder
616 "q" mh-show-index-sequenced-messages
617 "r" mh-show-rescan-folder
619 "t" mh-show-toggle-threads
620 "u" mh-show-undo-folder
621 "v" mh-show-visit-folder)
623 (gnus-define-keys (mh-show-sequence-map "S" mh-show-mode-map)
624 "'" mh-show-narrow-to-tick
626 "d" mh-show-delete-msg-from-seq
627 "k" mh-show-delete-seq
628 "l" mh-show-list-sequences
629 "n" mh-show-narrow-to-seq
630 "p" mh-show-put-msg-in-seq
631 "s" mh-show-msg-is-in-seq
634 (define-key mh-show-mode-map "I" mh-inc-spool-map)
636 (gnus-define-keys (mh-show-junk-map "J" mh-show-mode-map)
638 "b" mh-show-junk-blacklist
639 "w" mh-show-junk-whitelist)
641 (gnus-define-keys (mh-show-ps-print-map "P" mh-show-mode-map)
643 "C" mh-show-ps-print-toggle-color
644 "F" mh-show-ps-print-toggle-faces
645 "f" mh-show-ps-print-msg-file
646 "l" mh-show-print-msg
647 "p" mh-show-ps-print-msg)
649 (gnus-define-keys (mh-show-thread-map "T" mh-show-mode-map)
651 "u" mh-show-thread-ancestor
652 "p" mh-show-thread-previous-sibling
653 "n" mh-show-thread-next-sibling
654 "t" mh-show-toggle-threads
655 "d" mh-show-thread-delete
656 "o" mh-show-thread-refile)
658 (gnus-define-keys (mh-show-limit-map "/" mh-show-mode-map)
659 "'" mh-show-narrow-to-tick
661 "c" mh-show-narrow-to-cc
662 "g" mh-show-narrow-to-range
663 "m" mh-show-narrow-to-from
664 "s" mh-show-narrow-to-subject
665 "t" mh-show-narrow-to-to
668 (gnus-define-keys (mh-show-extract-map "X" mh-show-mode-map)
670 "s" mh-show-store-msg
671 "u" mh-show-store-msg)
673 (gnus-define-keys (mh-show-digest-map "D" mh-show-mode-map)
675 " " mh-show-page-digest
676 "\177" mh-show-page-digest-backwards
677 "b" mh-show-burst-digest)
679 (gnus-define-keys (mh-show-mime-map "K" mh-show-mode-map)
681 "a" mh-mime-save-parts
682 "e" mh-show-display-with-external-viewer
683 "v" mh-show-toggle-mime-part
684 "o" mh-show-save-mime-part
685 "i" mh-show-inline-mime-part
686 "t" mh-show-toggle-mime-buttons
687 "\t" mh-show-next-button
688 [backtab] mh-show-prev-button
689 "\M-\t" mh-show-prev-button
)
693 ;;; MH-Show Font Lock
695 (defun mh-header-field-font-lock (field limit
)
696 "Return the value of a header field FIELD to font-lock.
697 Argument LIMIT limits search."
698 (if (= (point) limit
)
700 (let* ((mail-header-end (mh-mail-header-end))
701 (lesser-limit (if (< mail-header-end limit
) mail-header-end limit
))
702 (case-fold-search t
))
703 (when (and (< (point) mail-header-end
) ;Only within header
704 (re-search-forward (format "^%s" field
) lesser-limit t
))
705 (let ((match-one-b (match-beginning 0))
706 (match-one-e (match-end 0)))
707 (mh-header-field-end)
708 (if (> (point) limit
) ;Don't search for end beyond limit
710 (set-match-data (list match-one-b match-one-e
711 (1+ match-one-e
) (point)))
714 (defun mh-header-to-font-lock (limit)
715 "Return the value of a header field To to font-lock.
716 Argument LIMIT limits search."
717 (mh-header-field-font-lock "To:" limit
))
719 (defun mh-header-cc-font-lock (limit)
720 "Return the value of a header field cc to font-lock.
721 Argument LIMIT limits search."
722 (mh-header-field-font-lock "cc:" limit
))
724 (defun mh-header-subject-font-lock (limit)
725 "Return the value of a header field Subject to font-lock.
726 Argument LIMIT limits search."
727 (mh-header-field-font-lock "Subject:" limit
))
729 (defun mh-letter-header-font-lock (limit)
730 "Return the entire mail header to font-lock.
731 Argument LIMIT limits search."
732 (if (= (point) limit
)
734 (let* ((mail-header-end (save-match-data (mh-mail-header-end)))
735 (lesser-limit (if (< mail-header-end limit
) mail-header-end limit
)))
736 (when (mh-in-header-p)
737 (set-match-data (list 1 lesser-limit
))
738 (goto-char lesser-limit
)
741 (defun mh-show-font-lock-fontify-region (beg end loudly
)
742 "Limit font-lock in `mh-show-mode' to the header.
744 Used when the option `mh-highlight-citation-style' is set to
745 \"Gnus\", leaving the body to be dealt with by Gnus highlighting.
746 The region between BEG and END is given over to be fontified and
747 LOUDLY controls if a user sees a message about the fontification
749 (let ((header-end (mh-mail-header-end)))
751 ((and (< beg header-end
)(< end header-end
))
752 (font-lock-default-fontify-region beg end loudly
))
753 ((and (< beg header-end
)(>= end header-end
))
754 (font-lock-default-fontify-region beg header-end loudly
))
758 (defvar mh-show-font-lock-keywords
759 '(("^\\(From:\\|Sender:\\)\\(.*\\)"
762 (mh-header-to-font-lock
765 (mh-header-cc-font-lock
768 ("^\\(Reply-To:\\|Return-Path:\\)\\(.*\\)$"
771 (mh-header-subject-font-lock
773 (1 'mh-show-subject
))
774 ("^\\(Apparently-To:\\|Newsgroups:\\)\\(.*\\)"
777 ("^\\(In-reply-to\\|Date\\):\\(.*\\)$"
780 (mh-letter-header-font-lock
781 (0 'mh-show-header append t
)))
782 "Additional expressions to highlight in MH-Show buffers.")
785 (defun mh-show-font-lock-keywords ()
786 "Return variable `mh-show-font-lock-keywords'."
787 mh-show-font-lock-keywords
)
789 (defvar mh-show-font-lock-keywords-with-cite
790 (let* ((cite-chars "[>|}]")
791 (cite-prefix "A-Za-z")
792 (cite-suffix (concat cite-prefix
"0-9_.@-`'\"")))
794 mh-show-font-lock-keywords
796 ;; Use MATCH-ANCHORED to effectively anchor the regexp left side.
798 (,(concat "\\=[ \t]*"
799 "\\(\\([" cite-prefix
"]+[" cite-suffix
"]*\\)?"
800 "\\(" cite-chars
"[ \t]*\\)\\)+"
802 (beginning-of-line) (end-of-line)
803 (2 font-lock-constant-face nil t
)
804 (4 font-lock-comment-face nil t
))))))
805 "Additional expressions to highlight in MH-Show buffers.")
808 (defun mh-show-font-lock-keywords-with-cite ()
809 "Return variable `mh-show-font-lock-keywords-with-cite'."
810 mh-show-font-lock-keywords-with-cite
)
816 ;; Ensure new buffers won't get this mode if default major-mode is nil.
817 (put 'mh-show-mode
'mode-class
'special
)
820 (defvar font-lock-auto-fontify
)
823 (define-derived-mode mh-show-mode text-mode
"MH-Show"
824 "Major mode for showing messages in MH-E.\\<mh-show-mode-map>
826 Email addresses and URLs in the message are highlighted if the
827 option `goto-address-highlight-p' is on, which it is by default.
828 To view the web page for a highlighted URL or to send a message
829 using a highlighted email address, use the middle mouse button or
830 \\[goto-address-at-point]. See Info node `(mh-e)Sending Mail' to
831 see how to configure Emacs to send the message using MH-E.
833 The hook `mh-show-mode-hook' is called upon entry to this mode.
835 See also `mh-folder-mode'.
837 \\{mh-show-mode-map}"
839 (if (boundp 'tool-bar-map
)
840 (set (make-local-variable 'tool-bar-map
) mh-show-tool-bar-map
)))
842 (mh-tool-bar-init :show
))
843 (set (make-local-variable 'mail-header-separator
) mh-mail-header-separator
)
844 (setq paragraph-start
(default-value 'paragraph-start
))
845 (mh-show-unquote-From)
848 (setq buffer-invisibility-spec
'((vanish . t
) t
))
849 (set (make-local-variable 'line-move-ignore-invisible
) t
)
850 (make-local-variable 'font-lock-defaults
)
851 ;;(set (make-local-variable 'font-lock-support-mode) nil)
853 ((equal mh-highlight-citation-style
'font-lock
)
854 (setq font-lock-defaults
'(mh-show-font-lock-keywords-with-cite t
)))
855 ((equal mh-highlight-citation-style
'gnus
)
856 (setq font-lock-defaults
'((mh-show-font-lock-keywords)
858 (font-lock-fontify-region-function
859 . mh-show-font-lock-fontify-region
)))
860 (mh-gnus-article-highlight-citation))
862 (setq font-lock-defaults
'(mh-show-font-lock-keywords t
))))
863 (if (and (featurep 'xemacs
)
864 font-lock-auto-fontify
)
866 (when mh-decode-mime-flag
867 (mh-make-local-hook 'kill-buffer-hook
)
868 (add-hook 'kill-buffer-hook
'mh-mime-cleanup nil t
))
869 (easy-menu-add mh-show-sequence-menu
)
870 (easy-menu-add mh-show-message-menu
)
871 (easy-menu-add mh-show-folder-menu
)
872 (make-local-variable 'mh-show-folder-buffer
)
873 (buffer-disable-undo)
874 (setq buffer-read-only t
)
875 (use-local-map mh-show-mode-map
))
881 (defun mh-show-unquote-From ()
882 "Decode >From at beginning of lines for `mh-show-mode'."
884 (let ((modified (buffer-modified-p))
885 (case-fold-search nil
)
886 (buffer-read-only nil
))
887 (goto-char (mh-mail-header-end))
888 (while (re-search-forward "^>From" nil t
)
889 (replace-match "From"))
890 (set-buffer-modified-p modified
))))
893 (defun mh-show-addr ()
894 "Use `goto-address'."
898 (defun mh-gnus-article-highlight-citation ()
899 "Highlight cited text in current buffer using Gnus."
901 ;; Don't allow Gnus to create buttons while highlighting, maybe this is bad
904 ((gnus-article-add-button (&rest args
) nil
))
905 (let* ((modified (buffer-modified-p))
906 (gnus-article-buffer (buffer-name))
907 (gnus-cite-face-list `(,@(cdr gnus-cite-face-list
)
908 ,(car gnus-cite-face-list
))))
909 (gnus-article-highlight-citation t
)
910 (set-buffer-modified-p modified
))))
915 ;; indent-tabs-mode: nil
916 ;; sentence-end-double-space: nil
919 ;;; mh-show.el ends here