1 ;;; mime-view.el --- interactive MIME viewer for GNU Emacs
3 ;; Copyright (C) 1995,1996,1997 Free Software Foundation, Inc.
5 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
7 ;; Renamed: 1994/8/31 from tm-body.el
8 ;; Renamed: 1997/02/19 from tm-view.el
9 ;; Version: $Revision: 0.60 $
10 ;; Keywords: MIME, multimedia, mail, news
12 ;; This file is part of SEMI (SEMI is Emacs MIME Interfaces).
14 ;; This program is free software; you can redistribute it and/or
15 ;; modify it under the terms of the GNU General Public License as
16 ;; published by the Free Software Foundation; either version 2, or (at
17 ;; your option) any later version.
19 ;; This program is distributed in the hope that it will be useful, but
20 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
21 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
22 ;; General Public License for more details.
24 ;; You should have received a copy of the GNU General Public License
25 ;; along with GNU Emacs; see the file COPYING. If not, write to the
26 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
27 ;; Boston, MA 02111-1307, USA.
34 (require 'eword-decode)
42 (defconst mime-view-RCS-ID
43 "$Id: mime-view.el,v 0.60 1997-03-17 16:19:30 morioka Exp $")
45 (defconst mime-view-version (get-version-string mime-view-RCS-ID))
51 (defvar mime/content-decoding-condition
52 '(((type . "text/plain")
53 (method "tm-plain" nil 'file 'type 'encoding 'mode 'name)
57 (method "tm-html" nil 'file 'type 'encoding 'mode 'name)
60 ((type . "text/x-rot13-47")
61 (method . mime-article/decode-caesar)
64 ((type . "audio/basic")
65 (method "tm-au" nil 'file 'type 'encoding 'mode 'name)
69 ((type . "image/jpeg")
70 (method "tm-image" nil 'file 'type 'encoding 'mode 'name)
74 (method "tm-image" nil 'file 'type 'encoding 'mode 'name)
77 ((type . "image/tiff")
78 (method "tm-image" nil 'file 'type 'encoding 'mode 'name)
81 ((type . "image/x-tiff")
82 (method "tm-image" nil 'file 'type 'encoding 'mode 'name)
85 ((type . "image/x-xbm")
86 (method "tm-image" nil 'file 'type 'encoding 'mode 'name)
89 ((type . "image/x-pic")
90 (method "tm-image" nil 'file 'type 'encoding 'mode 'name)
93 ((type . "image/x-mag")
94 (method "tm-image" nil 'file 'type 'encoding 'mode 'name)
98 ((type . "video/mpeg")
99 (method "tm-mpeg" nil 'file 'type 'encoding 'mode 'name)
103 ((type . "application/postscript")
104 (method "tm-ps" nil 'file 'type 'encoding 'mode 'name)
105 (mode "play" "print")
107 ((type . "application/octet-stream")
108 (method "tm-file" nil 'file 'type 'encoding 'mode 'name)
109 (mode "play" "print")
112 ;;((type . "message/external-body")
113 ;; (method "xterm" nil
114 ;; "-e" "showexternal"
115 ;; 'file '"access-type" '"name" '"site" '"directory"))
116 ((type . "message/rfc822")
117 (method . mime-article/view-message/rfc822)
120 ((type . "message/partial")
121 (method . mime-article/decode-message/partial)
124 ((type . "message/external-body")
125 ("access-type" . "anon-ftp")
126 (method . mime-article/decode-message/external-ftp)
129 ((method "metamail" t "-m" "tm" "-x" "-d" "-z" "-e" 'file)
132 ((method "tm-file" nil 'file 'type 'encoding 'mode 'name)
137 (defvar mime-view-childrens-header-showing-Content-Type-list
138 '("message/rfc822" "message/news"))
140 (defvar mime-view-visible-media-type-list
141 '("text/plain" nil "text/richtext" "text/enriched"
142 "text/rfc822-headers"
143 "text/x-latex" "application/x-latex"
144 "message/delivery-status"
145 "application/pgp" "text/x-pgp"
146 "application/octet-stream"
147 "application/x-selection" "application/x-comment")
148 "*List of media-types to be able to display in MIME-View buffer.
149 Each elements are string of TYPE/SUBTYPE, e.g. \"text/plain\".")
151 (defvar mime-view-content-button-visible-ctype-list
152 '("application/pgp"))
154 (defvar mime-view-uuencode-encoding-name-list '("x-uue" "x-uuencode"))
156 (defvar mime-view-ignored-field-list
157 '(".*Received" ".*Path" ".*Id" "References"
158 "Replied" "Errors-To"
159 "Lines" "Sender" ".*Host" "Xref"
160 "Content-Type" "Precedence"
162 "All fields that match this list will be hidden in MIME preview buffer.
163 Each elements are regexp of field-name. [mime-view.el]")
165 (defvar mime-view-ignored-field-regexp
167 (apply (function regexp-or) mime-view-ignored-field-list)
170 (defvar mime-view-visible-field-list '("Dnas.*" "Message-Id")
171 "All fields that match this list will be displayed in MIME preview buffer.
172 Each elements are regexp of field-name.")
174 (defvar mime-view-redisplay nil)
176 (defvar mime-view-announcement-for-message/partial
177 (if (and (>= emacs-major-version 19) window-system)
179 \[[ This is message/partial style split message. ]]
180 \[[ Please press `v' key in this buffer ]]
181 \[[ or click here by mouse button-2. ]]"
183 \[[ This is message/partial style split message. ]]
184 \[[ Please press `v' key in this buffer. ]]"
188 ;;; @@ predicate functions
191 (defun mime-view-header-visible-p (rcnum cinfo)
192 "Return non-nil if header of current entity is visible."
194 (member (mime::content-info/type
195 (mime-article/rcnum-to-cinfo (cdr rcnum) cinfo))
196 mime-view-childrens-header-showing-Content-Type-list)
199 (defun mime-view-body-visible-p (rcnum cinfo &optional ctype)
203 (mime::content-info/type
204 (setq ccinfo (mime-article/rcnum-to-cinfo rcnum cinfo))
207 (and (member ctype mime-view-visible-media-type-list)
208 (if (string-equal ctype "application/octet-stream")
211 (setq ccinfo (mime-article/rcnum-to-cinfo rcnum cinfo))
213 (member (mime::content-info/encoding ccinfo)
214 '(nil "7bit" "8bit"))
223 (defun mime-view-insert-entity-button (rcnum cinfo ctype params subj encoding)
224 "Insert entity-button."
226 (narrow-to-region (point)(point))
227 (let ((access-type (assoc "access-type" params))
228 (num (or (cdr (assoc "x-part-number" params))
232 (format "%s" (1+ num))
238 (let ((server (assoc "server" params)))
239 (setq access-type (cdr access-type))
241 (insert (format "[%s %s ([%s] %s)]\n" num subj
242 access-type (cdr server)))
243 (let ((site (cdr (assoc "site" params)))
244 (dir (cdr (assoc "directory" params)))
246 (insert (format "[%s %s ([%s] %s:%s)]\n" num subj
247 access-type site dir))
251 (let ((charset (cdr (assoc "charset" params))))
252 (insert (concat "[" num " " subj))
256 (concat "; " charset)
257 (if encoding (concat " (" encoding ")"))
260 (if (>= (+ (current-column)(length rest))(window-width))
266 (mime-add-button (point-min)(1- (point-max))
267 (function mime-view-play-current-entity))
270 (defun mime-view-entity-button-function
271 (rcnum cinfo ctype params subj encoding)
272 "Insert entity button conditionally.
273 Please redefine this function if you want to change default setting."
275 (string= ctype "application/x-selection")
276 (and (string= ctype "application/octet-stream")
277 (string= (mime::content-info/type
278 (mime-article/rcnum-to-cinfo (cdr rcnum) cinfo))
279 "multipart/encrypted"))
280 (mime-view-insert-entity-button rcnum cinfo ctype params subj encoding)
284 ;;; @@ content header filter
287 (defsubst mime-view-cut-header ()
288 (goto-char (point-min))
289 (while (re-search-forward mime-view-ignored-field-regexp nil t)
290 (let* ((beg (match-beginning 0))
292 (name (buffer-substring beg end))
294 (or (member-if (function
296 (string-match regexp name)
297 )) mime-view-visible-field-list)
299 (if (re-search-forward "^\\([^ \t]\\|$\\)" nil t)
304 (defun mime-view-default-content-header-filter ()
305 (mime-view-cut-header)
306 (eword-decode-header)
309 (defvar mime-view-content-header-filter-alist nil)
312 ;;; @@ content filter
315 (defvar mime-view-content-filter-alist
316 '(("text/enriched" . mime-preview/filter-for-text/enriched)
317 ("text/richtext" . mime-preview/filter-for-text/richtext)
318 (t . mime-preview/filter-for-text/plain)
322 ;;; @@ entity separator
325 (defun mime-view-entity-separator-function (rcnum cinfo ctype params subj)
326 "Insert entity separator conditionally.
327 Please redefine this function if you want to change default setting."
328 (or (mime-view-header-visible-p rcnum cinfo)
329 (mime-view-body-visible-p rcnum cinfo ctype)
331 (goto-char (point-max))
336 ;;; @@ buffer local variables
339 ;;; @@@ in raw buffer
342 (make-variable-buffer-local 'mime::article/content-info)
344 (defvar mime::article/preview-buffer nil)
345 (make-variable-buffer-local 'mime::article/preview-buffer)
348 ;;; @@@ in view buffer
351 (make-variable-buffer-local 'mime::preview/mother-buffer)
352 (make-variable-buffer-local 'mime::preview/content-list)
354 (defvar mime::preview/article-buffer nil)
355 (make-variable-buffer-local 'mime::preview/article-buffer)
357 (make-variable-buffer-local 'mime::preview/original-major-mode)
358 (make-variable-buffer-local 'mime::preview/original-window-configuration)
361 ;;; @@ quitting method
364 (defvar mime-view-quitting-method-alist
365 '((mime-show-message-mode
366 . mime-view-quitting-method-for-mime-show-message-mode))
367 "Alist of major-mode vs. quitting-method of mime-view.")
369 (defvar mime-view-over-to-previous-method-alist nil)
370 (defvar mime-view-over-to-next-method-alist nil)
372 (defvar mime-view-show-summary-method nil)
375 ;;; @@ following method
378 (defvar mime-view-following-method-alist nil)
380 (defvar mime-view-following-required-fields-list
387 ;; hack from Gnus 5.0.4.
389 (defvar mime-view-x-face-to-pbm-command
390 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm")
392 (defvar mime-view-x-face-command
393 (concat mime-view-x-face-to-pbm-command
395 "String to be executed to display an X-Face field.
396 The command will be executed in a sub-shell asynchronously.
397 The compressed face will be piped to this command.")
399 (defun mime-view-x-face-function ()
400 "Function to display X-Face field. You can redefine to customize."
401 ;; 1995/10/12 (c.f. tm-eng:130)
402 ;; fixed by Eric Ding <ericding@San-Jose.ate.slb.com>
404 (narrow-to-region (point-min) (re-search-forward "^$" nil t))
406 (goto-char (point-min))
407 (if (re-search-forward "^X-Face:[ \t]*" nil t)
408 (let ((beg (match-end 0))
409 (end (std11-field-end))
411 (call-process-region beg end "sh" nil 0 nil
412 "-c" mime-view-x-face-command)
419 (defun mime-preview/get-original-major-mode ()
420 (if mime::preview/mother-buffer
422 (set-buffer mime::preview/mother-buffer)
423 (mime-preview/get-original-major-mode)
425 mime::preview/original-major-mode))
428 ;;; @ data structures
431 ;;; @@ preview-content-info
434 (define-structure mime::preview-content-info
435 point-min point-max buffer content-info)
441 (defun mime-view-setup-buffer (&optional ctl encoding ibuf obuf)
447 (or mime-view-redisplay
448 (setq mime::article/content-info (mime-parse-message ctl encoding))
450 (let ((ret (mime-view-make-preview-buffer obuf)))
451 (setq mime::article/preview-buffer (car ret))
454 (defun mime-view-make-preview-buffer (&optional obuf)
455 (let* ((cinfo mime::article/content-info)
456 (pcl (mime/flatten-content-info cinfo))
457 (dest (make-list (length pcl) nil))
458 (the-buf (current-buffer))
462 (setq obuf (concat "*Preview-" (buffer-name the-buf) "*")))
463 (set-buffer (get-buffer-create obuf))
464 (setq buffer-read-only nil)
467 (setq mime::preview/article-buffer the-buf)
468 (setq mime::preview/original-major-mode mode)
469 (setq major-mode 'mime-view-mode)
470 (setq mode-name "MIME-View")
474 (mime-view-display-entity (car pcl) cinfo the-buf obuf))
478 (set-buffer-modified-p nil)
479 (setq buffer-read-only t)
484 (defun mime-view-display-entity (content cinfo ibuf obuf)
485 "Display entity from content-info CONTENT."
486 (let* ((beg (mime::content-info/point-min content))
487 (end (mime::content-info/point-max content))
488 (ctype (mime::content-info/type content))
489 (params (mime::content-info/parameters content))
490 (encoding (mime::content-info/encoding content))
491 (rcnum (mime::content-info/rcnum content))
495 (setq he (if (re-search-forward "^$" nil t)
502 (narrow-to-region beg end)
505 (mime-article/get-subject params encoding)))
509 (narrow-to-region nb nb)
510 (mime-view-entity-button-function rcnum cinfo ctype params subj encoding)
511 (if (mime-view-header-visible-p rcnum cinfo)
512 (mime-preview/display-header beg he)
514 (if (and (null rcnum)
516 ctype mime-view-content-button-visible-ctype-list))
518 (goto-char (point-max))
519 (mime-view-insert-entity-button
520 rcnum cinfo ctype params subj encoding)
522 (cond ((mime-view-body-visible-p rcnum cinfo ctype)
523 (mime-preview/display-body he end
524 rcnum cinfo ctype params subj encoding)
526 ((equal ctype "message/partial")
527 (mime-preview/display-message/partial)
530 (null (mime::content-info/children cinfo))
532 (goto-char (point-max))
533 (mime-view-insert-entity-button
534 rcnum cinfo ctype params subj encoding)
536 (mime-view-entity-separator-function rcnum cinfo ctype params subj)
539 (setq ne (point-max))
541 (put-text-property nb ne 'mime-view-raw-buffer ibuf)
542 (put-text-property nb ne 'mime-view-cinfo content)
543 (mime::preview-content-info/create nb (1- ne) ibuf content)
548 (defun mime-preview/display-header (beg end)
550 (narrow-to-region (point)(point))
551 (insert-buffer-substring mime::preview/article-buffer beg end)
552 (let ((f (cdr (assq mime::preview/original-major-mode
553 mime-view-content-header-filter-alist))))
556 (mime-view-default-content-header-filter)
558 (run-hooks 'mime-view-content-header-filter-hook)
561 (defun mime-preview/display-body (beg end
562 rcnum cinfo ctype params subj encoding)
564 (narrow-to-region (point-max)(point-max))
565 (insert-buffer-substring mime::preview/article-buffer beg end)
566 (let ((f (cdr (or (assoc ctype mime-view-content-filter-alist)
567 (assq t mime-view-content-filter-alist)))))
569 (funcall f ctype params encoding)
573 (defun mime-preview/display-message/partial ()
575 (goto-char (point-max))
576 (if (not (search-backward "\n\n" nil t))
579 (let ((be (point-max)))
580 (narrow-to-region be be)
581 (insert mime-view-announcement-for-message/partial)
582 (mime-add-button (point-min)(point-max)
583 (function mime-view-play-current-entity))
586 (defun mime-article/get-uu-filename (param &optional encoding)
587 (if (member (or encoding
588 (cdr (assq 'encoding param))
590 mime-view-uuencode-encoding-name-list)
592 (or (if (re-search-forward "^begin [0-9]+ " nil t)
593 (if (looking-at ".+$")
594 (buffer-substring (match-beginning 0)(match-end 0))
599 (defun mime-article/get-subject (param &optional encoding)
600 (or (std11-find-field-body '("Content-Description" "Subject"))
602 (if (or (and (setq ret (mime/Content-Disposition))
603 (setq ret (assoc "filename" (cdr ret)))
605 (setq ret (assoc "name" param))
606 (setq ret (assoc "x-name" param))
608 (std11-strip-quoted-string (cdr ret))
610 (mime-article/get-uu-filename param encoding)
614 ;;; @ content information
617 (defun mime-article/point-content-number (p &optional cinfo)
619 (setq cinfo mime::article/content-info)
621 (let ((b (mime::content-info/point-min cinfo))
622 (e (mime::content-info/point-max cinfo))
623 (c (mime::content-info/children cinfo))
625 (if (and (<= b p)(<= p e))
626 (or (let (co ret (sn 0))
630 (setq ret (mime-article/point-content-number p co))
631 (cond ((eq ret t) (throw 'tag (list sn)))
632 (ret (throw 'tag (cons sn ret)))
639 (defun mime-article/rcnum-to-cinfo (rcnum &optional cinfo)
641 (setq cinfo mime::article/content-info)
645 (equal (mime::content-info/rcnum ci) rcnum)
647 (mime/flatten-content-info cinfo)
650 (defun mime-article/cnum-to-cinfo (cn &optional cinfo)
652 (setq cinfo mime::article/content-info)
659 (let ((rc (nth sn (mime::content-info/children cinfo))))
661 (mime-article/cnum-to-cinfo (cdr cn) rc)
665 (defun mime/flatten-content-info (&optional cinfo)
667 (setq cinfo mime::article/content-info)
669 (let ((dest (list cinfo))
670 (rcl (mime::content-info/children cinfo))
673 (setq dest (nconc dest (mime/flatten-content-info (car rcl))))
678 (defun mime-preview/point-pcinfo (p &optional pcl)
680 (setq pcl mime::preview/content-list)
686 (if (and (<= (mime::preview-content-info/point-min cell) p)
687 (<= p (mime::preview-content-info/point-max cell))
697 ;;; @ MIME viewer mode
700 (defconst mime-view-menu-title "MIME-View")
701 (defconst mime-view-menu-list
702 '((up "Move to upper content" mime-view-move-to-upper)
703 (previous "Move to previous content" mime-view-move-to-previous)
704 (next "Move to next content" mime-view-move-to-next)
705 (scroll-down "Scroll to previous content" mime-view-scroll-down-entity)
706 (scroll-up "Scroll to next content" mime-view-scroll-up-entity)
707 (play "Play Content" mime-view-play-current-entity)
708 (extract "Extract Content" mime-view-extract-current-entity)
709 (print "Print" mime-view-print-current-entity)
710 (x-face "Show X Face" mime-view-display-x-face)
712 "Menu for MIME Viewer")
714 (cond (running-xemacs
715 (defvar mime-view-xemacs-popup-menu
716 (cons mime-view-menu-title
719 (vector (nth 1 item)(nth 2 item) t)
721 mime-view-menu-list)))
722 (defun mime-view-xemacs-popup-menu (event)
723 "Popup the menu in the MIME Viewer buffer"
725 (select-window (event-window event))
726 (set-buffer (event-buffer event))
727 (popup-menu 'mime-view-xemacs-popup-menu))
728 (defvar mouse-button-2 'button2)
731 (defvar mouse-button-2 [mouse-2])
734 (defun mime-view-define-keymap (&optional default)
735 (let ((mime-view-mode-map (if (keymapp default)
736 (copy-keymap default)
739 (define-key mime-view-mode-map
740 "u" (function mime-view-move-to-upper))
741 (define-key mime-view-mode-map
742 "p" (function mime-view-move-to-previous))
743 (define-key mime-view-mode-map
744 "n" (function mime-view-move-to-next))
745 (define-key mime-view-mode-map
746 "\e\t" (function mime-view-move-to-previous))
747 (define-key mime-view-mode-map
748 "\t" (function mime-view-move-to-next))
749 (define-key mime-view-mode-map
750 " " (function mime-view-scroll-up-entity))
751 (define-key mime-view-mode-map
752 "\M- " (function mime-view-scroll-down-entity))
753 (define-key mime-view-mode-map
754 "\177" (function mime-view-scroll-down-entity))
755 (define-key mime-view-mode-map
756 "\C-m" (function mime-view-next-line-content))
757 (define-key mime-view-mode-map
758 "\C-\M-m" (function mime-view-previous-line-content))
759 (define-key mime-view-mode-map
760 "v" (function mime-view-play-current-entity))
761 (define-key mime-view-mode-map
762 "e" (function mime-view-extract-current-entity))
763 (define-key mime-view-mode-map
764 "\C-c\C-p" (function mime-view-print-current-entity))
765 (define-key mime-view-mode-map
766 "a" (function mime-view-follow-content))
767 (define-key mime-view-mode-map
768 "q" (function mime-view-quit))
769 (define-key mime-view-mode-map
770 "h" (function mime-view-show-summary))
771 (define-key mime-view-mode-map
772 "\C-c\C-x" (function mime-view-kill-buffer))
773 (define-key mime-view-mode-map
774 "<" (function beginning-of-buffer))
775 (define-key mime-view-mode-map
776 ">" (function end-of-buffer))
777 (define-key mime-view-mode-map
778 "?" (function describe-mode))
779 (if (functionp default)
780 (setq mime-view-mode-map
781 (append mime-view-mode-map (list (cons t default)))
784 (define-key mime-view-mode-map
785 mouse-button-2 (function mime-button-dispatcher))
787 (cond (running-xemacs
788 (define-key mime-view-mode-map
789 mouse-button-3 (function mime-view-xemacs-popup-menu))
791 ((>= emacs-major-version 19)
792 (define-key mime-view-mode-map [menu-bar mime-view]
793 (cons mime-view-menu-title
794 (make-sparse-keymap mime-view-menu-title)))
797 (define-key mime-view-mode-map
798 (vector 'menu-bar 'mime-view (car item))
799 (cons (nth 1 item)(nth 2 item))
802 (reverse mime-view-menu-list)
805 (use-local-map mime-view-mode-map)
806 (run-hooks 'mime-view-define-keymap-hook)
809 (defun mime-view-mode (&optional mother ctl encoding ibuf obuf
810 default-keymap-or-function)
811 "Major mode for viewing MIME message.
813 Here is a list of the standard keys for mime-view-mode.
818 u Move to upper content
819 p or M-TAB Move to previous content
820 n or TAB Move to next content
821 SPC Scroll up or move to next content
822 M-SPC or DEL Scroll down or move to previous content
823 RET Move to next line
824 M-RET Move to previous line
825 v Decode current content as `play mode'
826 e Decode current content as `extract mode'
827 C-c C-p Decode current content as `print mode'
828 a Followup to current content.
831 button-2 Move to point under the mouse cursor
832 and decode current content as `play mode'
835 (let ((buf (get-buffer mime/output-buffer-name)))
841 (let ((ret (mime-view-setup-buffer ctl encoding ibuf obuf))
842 (win-conf (current-window-configuration))
845 (switch-to-buffer (car ret))
846 (setq mime::preview/original-window-configuration win-conf)
849 (setq mime::preview/mother-buffer mother)
851 (mime-view-define-keymap default-keymap-or-function)
852 (setq mime::preview/content-list (nth 1 ret))
854 (let ((ce (mime::preview-content-info/point-max
855 (car mime::preview/content-list)
858 (goto-char (point-min))
859 (search-forward "\n\n" nil t)
860 (setq e (match-end 0))
864 (run-hooks 'mime-view-mode-hook)
867 (defun mime-preview/point-content-number (point)
868 (save-window-excursion
869 (let ((pc (mime-preview/point-pcinfo (point)))
871 (switch-to-buffer (mime::preview-content-info/buffer pc))
872 (setq cinfo (mime::preview-content-info/content-info pc))
873 (mime-article/point-content-number (mime::content-info/point-min cinfo))
876 (defun mime-preview/cinfo-to-pcinfo (cinfo)
877 (let ((rpcl mime::preview/content-list) cell)
880 (setq cell (car rpcl))
881 (if (eq cinfo (mime::preview-content-info/content-info cell))
884 (setq rpcl (cdr rpcl))
887 (autoload 'mime-view-play-current-entity "mime-play" "Play current entity." t)
889 (defun mime-view-extract-current-entity ()
890 "Extract current entity into file (maybe).
891 It decodes current entity to call internal or external method as
892 \"extract\" mode. The method is selected from variable
893 `mime/content-decoding-condition'."
895 (mime-view-play-current-entity "extract")
898 (defun mime-view-print-current-entity ()
899 "Print current entity (maybe).
900 It decodes current entity to call internal or external method as
901 \"print\" mode. The method is selected from variable
902 `mime/content-decoding-condition'."
904 (mime-view-play-current-entity "print")
907 (defun mime-view-follow-content ()
910 (mime::preview-content-info/content-info
911 (car mime::preview/content-list)))
912 pc p-beg p-end cinfo rcnum)
913 (let ((rest mime::preview/content-list)
916 (while (setq cell (car rest))
917 (setq b (mime::preview-content-info/point-min cell)
918 e (mime::preview-content-info/point-max cell))
919 (setq rest (cdr rest))
920 (if (and (<= b (point))(<= (point) e))
926 cinfo (mime::preview-content-info/content-info pc)
927 rcnum (mime::content-info/rcnum cinfo))
928 (setq len (length rcnum))
929 (setq p-beg (mime::preview-content-info/point-min pc)
930 p-end (mime::preview-content-info/point-max pc))
931 (while (and (setq cell (car rest))
934 (mime::content-info/rcnum
935 (mime::preview-content-info/content-info
938 (nthcdr (- (length rc) len) rc))
940 (setq p-end (mime::preview-content-info/point-max cell))
941 (setq rest (cdr rest))
944 (let* ((mode (mime-preview/get-original-major-mode))
945 (new-name (format "%s-%s" (buffer-name) (reverse rcnum)))
947 (the-buf (current-buffer))
948 (a-buf mime::preview/article-buffer)
951 (set-buffer (setq new-buf (get-buffer-create new-name)))
953 (insert-buffer-substring the-buf p-beg p-end)
954 (goto-char (point-min))
955 (if (mime-view-header-visible-p rcnum root-cinfo)
956 (delete-region (goto-char (point-min))
957 (if (re-search-forward "^$" nil t)
961 (goto-char (point-min))
963 (goto-char (point-min))
964 (let ((rcnum (mime::content-info/rcnum cinfo)) ci str)
969 (setq ci (mime-article/rcnum-to-cinfo rcnum))
972 (mime::content-info/point-min ci)
973 (mime::content-info/point-max ci)
975 (std11-header-string-except
977 (apply (function regexp-or) fields)
979 (if (string= (mime::content-info/type ci)
986 (setq fields (std11-collect-field-names)
990 (let ((rest mime-view-following-required-fields-list))
992 (let ((field-name (car rest)))
993 (or (std11-field-body field-name)
1000 (set-buffer mime::preview/mother-buffer)
1001 (set-buffer mime::preview/article-buffer)
1002 (std11-field-body field-name)
1006 (setq rest (cdr rest))
1008 (eword-decode-header)
1010 (let ((f (cdr (assq mode mime-view-following-method-alist))))
1015 "Sorry, following method for %s is not implemented yet."
1020 (defun mime-view-display-x-face ()
1022 (save-window-excursion
1023 (set-buffer mime::preview/article-buffer)
1024 (mime-view-x-face-function)
1027 (defun mime-view-move-to-upper ()
1028 "Move to upper entity.
1029 If there is no upper entity, call function `mime-view-quit'."
1032 (while (null (setq cinfo (get-text-property (point) 'mime-view-cinfo)))
1035 (let ((r (mime-article/rcnum-to-cinfo
1036 (cdr (mime::content-info/rcnum cinfo))
1037 (get-text-property 1 'mime-view-cinfo)))
1040 (while (setq point (previous-single-property-change
1041 (point) 'mime-view-cinfo))
1043 (if (eq r (get-text-property (point) 'mime-view-cinfo))
1050 (defun mime-view-move-to-previous ()
1051 "Move to previous entity.
1052 If there is no previous entity, it calls function registered in
1053 variable `mime-view-over-to-previous-method-alist'."
1055 (while (null (get-text-property (point) 'mime-view-cinfo))
1058 (let ((point (previous-single-property-change (point) 'mime-view-cinfo)))
1061 (let ((f (assq mime::preview/original-major-mode
1062 mime-view-over-to-previous-method-alist)))
1068 (defun mime-view-move-to-next ()
1069 "Move to next entity.
1070 If there is no previous entity, it calls function registered in
1071 variable `mime-view-over-to-next-method-alist'."
1073 (let ((point (next-single-property-change (point) 'mime-view-cinfo)))
1076 (let ((f (assq mime::preview/original-major-mode
1077 mime-view-over-to-next-method-alist)))
1083 (defun mime-view-scroll-up-entity (&optional h)
1084 "Scroll up current entity."
1087 (setq h (- (window-height) 1))
1089 (if (= (point) (point-max))
1090 (let ((f (assq mime::preview/original-major-mode
1091 mime-view-over-to-next-method-alist)))
1095 (let ((pcl mime::preview/content-list)
1101 (setq beg (mime::preview-content-info/point-min (car pcl)))
1105 (setq pcl (cdr pcl))
1115 (defun mime-view-scroll-down-entity (&optional h)
1116 "Scroll down current entity."
1119 (setq h (- (window-height) 1))
1121 (if (= (point) (point-min))
1122 (let ((f (assq mime::preview/original-major-mode
1123 mime-view-over-to-previous-method-alist)))
1127 (let ((pcl mime::preview/content-list)
1131 (or (let ((i (- (length pcl) 1)))
1134 (setq beg (mime::preview-content-info/point-min
1142 (forward-line (- h))
1148 (defun mime-view-next-line-content ()
1150 (mime-view-scroll-up-entity 1)
1153 (defun mime-view-previous-line-content ()
1155 (mime-view-scroll-down-entity 1)
1158 (defun mime-view-quit ()
1160 (let ((r (save-excursion
1161 (set-buffer (mime::preview-content-info/buffer
1162 (mime-preview/point-pcinfo (point))))
1163 (assq major-mode mime-view-quitting-method-alist)
1169 (defun mime-view-show-summary ()
1171 (let ((r (save-excursion
1173 (mime::preview-content-info/buffer
1174 (mime-preview/point-pcinfo (point)))
1176 (assq major-mode mime-view-show-summary-method)
1182 (defun mime-view-kill-buffer ()
1184 (kill-buffer (current-buffer))
1191 (provide 'mime-view)
1193 (run-hooks 'mime-view-load-hook)
1195 ;;; mime-view.el ends here