1 ;;; emh.el --- MIME extender for mh-e
3 ;; Copyright (C) 1995,1996,1997 Free Software Foundation, Inc.
5 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
6 ;; OKABE Yasuo <okabe@kudpc.kyoto-u.ac.jp>
7 ;; Maintainer: MORIOKA Tomohiko <morioka@jaist.ac.jp>
9 ;; Renamed: 1993/11/27 from mh-e-mime.el
10 ;; Renamed: 1997/02/21 from tm-mh-e.el
11 ;; Version: $Revision: 0.20 $
12 ;; Keywords: MH, MIME, multimedia, encoded-word, multilingual, mail
14 ;; This file is part of emh.
16 ;; This program is free software; you can redistribute it and/or
17 ;; modify it under the terms of the GNU General Public License as
18 ;; published by the Free Software Foundation; either version 2, or (at
19 ;; your option) any later version.
21 ;; This program is distributed in the hope that it will be useful, but
22 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
23 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
24 ;; General Public License for more details.
26 ;; You should have received a copy of the GNU General Public License
27 ;; along with GNU Emacs; see the file COPYING. If not, write to the
28 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
29 ;; Boston, MA 02111-1307, USA.
41 "$Id: emh.el,v 0.20 1997-05-12 12:32:35 morioka Exp $")
43 (defconst emh-version (get-version-string emh-RCS-ID))
49 (defvar emh-automatic-mime-preview t
50 "*If non-nil, show MIME processed message.")
52 (defvar emh-decode-encoded-word t
53 "*If non-nil, decode encoded-word when it is not MIME preview mode.")
59 (defun mh-display-msg (msg-num folder &optional show-buffer mode)
60 "Display message number MSG-NUM of FOLDER.
61 This function uses `mime-view-mode' if MODE is not nil. If MODE is
62 nil, `emh-automatic-mime-preview' is used as default value."
64 (setq mode emh-automatic-mime-preview)
66 ;; Display message NUMBER of FOLDER.
67 ;; Sets the current buffer to the show buffer.
70 (setq show-buffer mh-show-buffer))
71 ;; Bind variables in folder buffer in case they are local
72 (let ((msg-filename (mh-msg-filename msg-num)))
73 (if (not (file-exists-p msg-filename))
74 (error "Message %d does not exist" msg-num))
75 (set-buffer show-buffer)
76 (cond ((not (equal msg-filename buffer-file-name))
77 ;; Buffer does not yet contain message.
78 (clear-visited-file-modtime)
80 (setq buffer-file-name nil) ; no locking during setup
81 (setq buffer-read-only nil)
84 (let* ((aname (concat "article-" folder))
85 (abuf (get-buffer aname))
90 (setq buffer-read-only nil)
93 (setq abuf (get-buffer-create aname))
97 (insert-file-contents msg-filename)
98 ;; (goto-char (point-min))
99 (while (re-search-forward "\r$" nil t)
103 (set-buffer-modified-p nil)
104 (setq buffer-read-only t)
105 (setq buffer-file-name msg-filename)
107 (mime-view-mode nil nil nil
108 aname (concat "show-" folder))
109 (goto-char (point-min))
111 (let ((clean-message-header mh-clean-message-header)
112 (invisible-headers mh-invisible-headers)
113 (visible-headers mh-visible-headers)
116 ;; modified by ARIURA <ariura@cc.tuat.ac.jp>
119 (mh-exec-lib-cmd-output "mhl" "-nobell" "-noclear"
120 (if (stringp mhl-formfile)
121 (list "-form" mhl-formfile))
123 (insert-file-contents msg-filename))
125 (goto-char (point-min))
126 (cond (clean-message-header
127 (mh-clean-msg-header (point-min)
130 (goto-char (point-min)))
132 (mh-start-of-uncleaned-message)))
133 (if emh-decode-encoded-word
134 (eword-decode-header)
136 (set-buffer-modified-p nil)
137 (setq buffer-read-only t)
138 (setq buffer-file-name msg-filename)
141 (or (eq buffer-undo-list t) ;don't save undo info for prev msgs
142 (setq buffer-undo-list nil))
143 ;;; Added by itokon (02/19/96)
144 (setq buffer-file-name msg-filename)
147 (setq mode-line-buffer-identification
148 (list (format mh-show-buffer-mode-line-buffer-id
151 (setq mh-showing-with-headers nil)))))
153 (defun emh-view-message (&optional msg)
154 "MIME decode and play this message."
156 (if (or (null emh-automatic-mime-preview)
157 (null (get-buffer mh-show-buffer))
159 (set-buffer mh-show-buffer)
160 (not (eq major-mode 'mime-view-mode))
162 (let ((emh-automatic-mime-preview t))
163 (mh-invalidate-show-buffer)
166 (pop-to-buffer mh-show-buffer)
169 (defun emh-toggle-decoding-mode (arg)
170 "Toggle MIME processing mode.
171 With arg, turn MIME processing on if arg is positive."
173 (setq emh-automatic-mime-preview
175 (not emh-automatic-mime-preview)
178 (set-buffer mh-show-buffer)
179 (if (null emh-automatic-mime-preview)
180 (if (and mime-raw-buffer
181 (get-buffer mime-raw-buffer))
182 (kill-buffer mime-raw-buffer)
184 (mh-invalidate-show-buffer)
185 (mh-show (mh-get-msg-num t))
188 (defun emh-show (&optional message)
190 (mh-invalidate-show-buffer)
194 (defun emh-header-display ()
196 (mh-invalidate-show-buffer)
197 (let ((mime-view-ignored-field-regexp "^:$")
198 emh-decode-encoded-word)
202 (defun emh-raw-display ()
204 (mh-invalidate-show-buffer)
205 (let (emh-automatic-mime-preview
206 emh-decode-encoded-word)
210 (defun emh-burst-multipart/digest ()
211 "Burst apart the current message, which should be a multipart/digest.
212 The message is replaced by its table of contents and the letters from the
213 digest are inserted into the folder after that message."
215 (let ((digest (mh-get-msg-num t)))
216 (mh-process-or-undo-commands mh-current-folder)
217 (mh-set-folder-modified-p t) ; lock folder while bursting
218 (message "Bursting digest...")
219 (mh-exec-cmd "mhn" "-store" mh-current-folder digest)
220 (mh-scan-folder mh-current-folder (format "%d-last" mh-first-msg-num))
221 (message "Bursting digest...done")
228 (fset 'emh-text-decode-buffer
229 (symbol-function 'mime-text-decode-buffer))
231 (set-alist 'mime-text-decoder-alist
233 (function emh-text-decode-buffer))
235 (defvar emh-content-header-filter-hook
237 '(emh-highlight-header)
239 "Hook for header filtering.")
241 (autoload 'emh-highlight-header "emh-face")
243 (defun emh-content-header-filter ()
244 "Header filter for mime-view.
245 It is registered to variable `mime-view-content-header-filter-alist'."
246 (goto-char (point-min))
247 (mime-view-cut-header)
248 (emh-text-decode-buffer default-mime-charset)
249 (eword-decode-header)
250 (run-hooks 'emh-content-header-filter-hook)
253 (set-alist 'mime-view-content-header-filter-alist
255 (function emh-content-header-filter))
257 (defun emh-quitting-method ()
258 (let ((buf (current-buffer)))
259 (mime-hide-echo-buffer)
261 (let ((name (buffer-name buf)))
264 (if (not emh-automatic-mime-preview)
265 (mh-invalidate-show-buffer)
267 (mh-show (mh-get-msg-num t))
270 (set-alist 'mime-view-quitting-method-alist
272 (function emh-quitting-method))
273 (set-alist 'mime-view-show-summary-method
275 (function emh-quitting-method))
277 (defun emh-following-method (buf)
280 (goto-char (point-max))
281 (setq mh-show-buffer buf)
282 (apply (function mh-send)
283 (std11-field-bodies '("From" "cc" "Subject") ""))
284 (setq mh-sent-from-folder buf)
285 (setq mh-sent-from-msg 1)
286 (let ((last (point)))
291 (set-alist 'mime-view-following-method-alist
293 (function emh-following-method))
296 ;;; @@ for mime-partial
303 (autoload 'mime-combine-message/partials-automatically
305 "Internal method to combine message/partial messages automatically.")
306 (set-atype 'mime-acting-condition
307 '((type . "message/partial")
308 (method . mime-combine-message/partials-automatically)
309 (major-mode . mh-show-mode)
311 . (and (or (string-match "^article-\\(.+\\)$" article-buffer)
312 (string-match "^show-\\(.+\\)$" article-buffer))
313 (substring article-buffer
314 (match-beginning 1) (match-end 1))
317 (set-alist 'mime-view-partial-message-method-alist
321 (let ((emh-automatic-mime-preview t))
330 (define-key mh-folder-mode-map "v" (function emh-view-message))
331 (define-key mh-folder-mode-map "\et" (function emh-toggle-decoding-mode))
332 (define-key mh-folder-mode-map "." (function emh-show))
333 (define-key mh-folder-mode-map "," (function emh-header-display))
334 (define-key mh-folder-mode-map "\e," (function emh-raw-display))
335 (define-key mh-folder-mode-map "\C-c\C-b"
336 (function emh-burst-multipart/digest))
338 (defun emh-summary-before-quit ()
339 (let ((buf (get-buffer mh-show-buffer)))
341 (let ((the-buf (current-buffer)))
342 (switch-to-buffer buf)
343 (if (and mime-view-buffer
344 (setq buf (get-buffer mime-view-buffer))
347 (switch-to-buffer the-buf)
350 (switch-to-buffer the-buf)
354 (add-hook 'mh-before-quit-hook (function emh-summary-before-quit))
357 ;;; @@ for emh-comp.el
360 (autoload 'emh-edit-again "emh-comp"
361 "Clean-up a draft or a message previously sent and make it resendable." t)
362 (autoload 'emh-extract-rejected-mail "emh-comp"
363 "Extract a letter returned by the mail system and make it re-editable." t)
364 (autoload 'emh-forward "emh-comp"
365 "Forward a message or message sequence by MIME style." t)
371 (substitute-key-definition
372 'mh-edit-again 'emh-edit-again mh-folder-mode-map)
373 (substitute-key-definition
374 'mh-extract-rejected-mail 'emh-extract-rejected-mail
376 (substitute-key-definition
377 'mh-forward 'emh-forward mh-folder-mode-map)
385 'mh-letter-mode-hook)
405 (run-hooks 'emh-load-hook)