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: 0.74 $
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 0.74 1997-03-18 15:16:56 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/external-body")
117 ("access-type" . "anon-ftp")
118 (method . mime-article/decode-message/external-ftp)
120 ((type . "message/rfc822")
121 (method . mime-article/view-message/rfc822)
124 ((type . "message/partial")
125 (method . mime-article/decode-message/partial)
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 (defvar mime::article/content-info
343 "Information about structure of message.
344 Please use reference function `mime::content-info/SLOT-NAME' to
345 reference slot of content-info. Their argument is only content-info.
347 Following is a list of slots of the structure:
349 rcnum reversed content-number (list)
350 point-min beginning point of region in raw-buffer
351 point-max end point of region in raw-buffer
352 type media-type/subtype (string or nil)
353 parameters parameter of Content-Type field (association list)
354 encoding Content-Transfer-Encoding (string or nil)
355 children entities included in this entity (list of content-infos)
357 If a entity includes other entities in its body, such as multipart or
358 message/rfc822, content-infos of other entities are included in
359 `children', so content-info become a tree.")
360 (make-variable-buffer-local 'mime::article/content-info)
362 (defvar mime-view-buffer nil
363 "MIME View buffer corresponding with the (raw) buffer.")
364 (make-variable-buffer-local 'mime-view-buffer)
367 ;;; @@@ in view buffer
370 (defvar mime-mother-buffer nil
371 "Mother buffer corresponding with the (MIME-View) buffer.
372 If current MIME-View buffer is generated by other buffer, such as
373 message/partial, it is called `mother-buffer'.")
375 (make-variable-buffer-local 'mime-mother-buffer)
377 (defvar mime-raw-buffer nil
378 "Raw buffer corresponding with the (MIME-View) buffer.")
379 (make-variable-buffer-local 'mime-raw-buffer)
381 (make-variable-buffer-local 'mime::preview/original-major-mode)
382 (make-variable-buffer-local 'mime::preview/original-window-configuration)
385 ;;; @@ quitting method
388 (defvar mime-view-quitting-method-alist
389 '((mime-show-message-mode
390 . mime-view-quitting-method-for-mime-show-message-mode))
391 "Alist of major-mode vs. quitting-method of mime-view.")
393 (defvar mime-view-over-to-previous-method-alist nil)
394 (defvar mime-view-over-to-next-method-alist nil)
396 (defvar mime-view-show-summary-method nil
397 "Alist of major-mode vs. show-summary-method.")
400 ;;; @@ following method
403 (defvar mime-view-following-method-alist nil
404 "Alist of major-mode vs. following-method of mime-view.")
406 (defvar mime-view-following-required-fields-list
413 ;; hack from Gnus 5.0.4.
415 (defvar mime-view-x-face-to-pbm-command
416 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm")
418 (defvar mime-view-x-face-command
419 (concat mime-view-x-face-to-pbm-command
421 "String to be executed to display an X-Face field.
422 The command will be executed in a sub-shell asynchronously.
423 The compressed face will be piped to this command.")
425 (defun mime-view-x-face-function ()
426 "Function to display X-Face field. You can redefine to customize."
427 ;; 1995/10/12 (c.f. tm-eng:130)
428 ;; fixed by Eric Ding <ericding@San-Jose.ate.slb.com>
430 (narrow-to-region (point-min) (re-search-forward "^$" nil t))
432 (goto-char (point-min))
433 (if (re-search-forward "^X-Face:[ \t]*" nil t)
434 (let ((beg (match-end 0))
435 (end (std11-field-end))
437 (call-process-region beg end "sh" nil 0 nil
438 "-c" mime-view-x-face-command)
445 (defun mime-preview/get-original-major-mode ()
446 (if mime-mother-buffer
448 (set-buffer mime-mother-buffer)
449 (mime-preview/get-original-major-mode)
451 mime::preview/original-major-mode))
457 (defun mime-view-setup-buffer (&optional ctl encoding ibuf obuf)
463 (or mime-view-redisplay
464 (setq mime::article/content-info (mime-parse-message ctl encoding))
466 (setq mime-view-buffer (mime-view-make-preview-buffer obuf))
469 (defun mime-view-make-preview-buffer (&optional obuf)
470 (let* ((cinfo mime::article/content-info)
471 (pcl (mime/flatten-content-info cinfo))
472 (the-buf (current-buffer))
476 (setq obuf (concat "*Preview-" (buffer-name the-buf) "*")))
477 (set-buffer (get-buffer-create obuf))
478 (setq buffer-read-only nil)
481 (setq mime-raw-buffer the-buf)
482 (setq mime::preview/original-major-mode mode)
483 (setq major-mode 'mime-view-mode)
484 (setq mode-name "MIME-View")
486 (mime-view-display-entity (car pcl) cinfo the-buf obuf)
489 (set-buffer-modified-p nil)
490 (setq buffer-read-only t)
494 (defun mime-view-display-entity (content cinfo ibuf obuf)
495 "Display entity from content-info CONTENT."
496 (let* ((beg (mime::content-info/point-min content))
497 (end (mime::content-info/point-max content))
498 (ctype (mime::content-info/type content))
499 (params (mime::content-info/parameters content))
500 (encoding (mime::content-info/encoding content))
501 (rcnum (mime::content-info/rcnum content))
505 (setq he (if (re-search-forward "^$" nil t)
512 (narrow-to-region beg end)
515 (mime-article/get-subject params encoding)))
519 (narrow-to-region nb nb)
520 (mime-view-entity-button-function rcnum cinfo ctype params subj encoding)
521 (if (mime-view-header-visible-p rcnum cinfo)
522 (mime-preview/display-header beg he)
524 (if (and (null rcnum)
526 ctype mime-view-content-button-visible-ctype-list))
528 (goto-char (point-max))
529 (mime-view-insert-entity-button
530 rcnum cinfo ctype params subj encoding)
532 (cond ((mime-view-body-visible-p rcnum cinfo ctype)
533 (mime-preview/display-body he end
534 rcnum cinfo ctype params subj encoding)
536 ((equal ctype "message/partial")
537 (mime-preview/display-message/partial)
540 (null (mime::content-info/children cinfo))
542 (goto-char (point-max))
543 (mime-view-insert-entity-button
544 rcnum cinfo ctype params subj encoding)
546 (mime-view-entity-separator-function rcnum cinfo ctype params subj)
547 (setq ne (point-max))
549 (put-text-property nb ne 'mime-view-raw-buffer ibuf)
550 (put-text-property nb ne 'mime-view-cinfo content)
554 (defun mime-preview/display-header (beg end)
556 (narrow-to-region (point)(point))
557 (insert-buffer-substring mime-raw-buffer beg end)
558 (let ((f (cdr (assq mime::preview/original-major-mode
559 mime-view-content-header-filter-alist))))
562 (mime-view-default-content-header-filter)
564 (run-hooks 'mime-view-content-header-filter-hook)
567 (defun mime-preview/display-body (beg end
568 rcnum cinfo ctype params subj encoding)
570 (narrow-to-region (point-max)(point-max))
571 (insert-buffer-substring mime-raw-buffer beg end)
572 (let ((f (cdr (or (assoc ctype mime-view-content-filter-alist)
573 (assq t mime-view-content-filter-alist)))))
575 (funcall f ctype params encoding)
579 (defun mime-preview/display-message/partial ()
581 (goto-char (point-max))
582 (if (not (search-backward "\n\n" nil t))
585 (let ((be (point-max)))
586 (narrow-to-region be be)
587 (insert mime-view-announcement-for-message/partial)
588 (mime-add-button (point-min)(point-max)
589 (function mime-view-play-current-entity))
592 (defun mime-article/get-uu-filename (param &optional encoding)
593 (if (member (or encoding
594 (cdr (assq 'encoding param))
596 mime-view-uuencode-encoding-name-list)
598 (or (if (re-search-forward "^begin [0-9]+ " nil t)
599 (if (looking-at ".+$")
600 (buffer-substring (match-beginning 0)(match-end 0))
605 (defun mime-article/get-subject (param &optional encoding)
606 (or (std11-find-field-body '("Content-Description" "Subject"))
608 (if (or (and (setq ret (mime/Content-Disposition))
609 (setq ret (assoc "filename" (cdr ret)))
611 (setq ret (assoc "name" param))
612 (setq ret (assoc "x-name" param))
614 (std11-strip-quoted-string (cdr ret))
616 (mime-article/get-uu-filename param encoding)
620 ;;; @ content information
623 (defun mime-article/point-content-number (p &optional cinfo)
625 (setq cinfo mime::article/content-info)
627 (let ((b (mime::content-info/point-min cinfo))
628 (e (mime::content-info/point-max cinfo))
629 (c (mime::content-info/children cinfo))
631 (if (and (<= b p)(<= p e))
632 (or (let (co ret (sn 0))
636 (setq ret (mime-article/point-content-number p co))
637 (cond ((eq ret t) (throw 'tag (list sn)))
638 (ret (throw 'tag (cons sn ret)))
645 (defun mime-article/rcnum-to-cinfo (rcnum &optional cinfo)
647 (setq cinfo mime::article/content-info)
651 (equal (mime::content-info/rcnum ci) rcnum)
653 (mime/flatten-content-info cinfo)
656 (defun mime-article/cnum-to-cinfo (cn &optional cinfo)
658 (setq cinfo mime::article/content-info)
665 (let ((rc (nth sn (mime::content-info/children cinfo))))
667 (mime-article/cnum-to-cinfo (cdr cn) rc)
671 (defun mime/flatten-content-info (&optional cinfo)
673 (setq cinfo mime::article/content-info)
675 (let ((dest (list cinfo))
676 (rcl (mime::content-info/children cinfo))
679 (setq dest (nconc dest (mime/flatten-content-info (car rcl))))
685 ;;; @ MIME viewer mode
688 (defconst mime-view-menu-title "MIME-View")
689 (defconst mime-view-menu-list
690 '((up "Move to upper content" mime-view-move-to-upper)
691 (previous "Move to previous content" mime-view-move-to-previous)
692 (next "Move to next content" mime-view-move-to-next)
693 (scroll-down "Scroll to previous content" mime-view-scroll-down-entity)
694 (scroll-up "Scroll to next content" mime-view-scroll-up-entity)
695 (play "Play Content" mime-view-play-current-entity)
696 (extract "Extract Content" mime-view-extract-current-entity)
697 (print "Print" mime-view-print-current-entity)
698 (x-face "Show X Face" mime-view-display-x-face)
700 "Menu for MIME Viewer")
702 (cond (running-xemacs
703 (defvar mime-view-xemacs-popup-menu
704 (cons mime-view-menu-title
707 (vector (nth 1 item)(nth 2 item) t)
709 mime-view-menu-list)))
710 (defun mime-view-xemacs-popup-menu (event)
711 "Popup the menu in the MIME Viewer buffer"
713 (select-window (event-window event))
714 (set-buffer (event-buffer event))
715 (popup-menu 'mime-view-xemacs-popup-menu))
716 (defvar mouse-button-2 'button2)
719 (defvar mouse-button-2 [mouse-2])
722 (defun mime-view-define-keymap (&optional default)
723 (let ((mime-view-mode-map (if (keymapp default)
724 (copy-keymap default)
727 (define-key mime-view-mode-map
728 "u" (function mime-view-move-to-upper))
729 (define-key mime-view-mode-map
730 "p" (function mime-view-move-to-previous))
731 (define-key mime-view-mode-map
732 "n" (function mime-view-move-to-next))
733 (define-key mime-view-mode-map
734 "\e\t" (function mime-view-move-to-previous))
735 (define-key mime-view-mode-map
736 "\t" (function mime-view-move-to-next))
737 (define-key mime-view-mode-map
738 " " (function mime-view-scroll-up-entity))
739 (define-key mime-view-mode-map
740 "\M- " (function mime-view-scroll-down-entity))
741 (define-key mime-view-mode-map
742 "\177" (function mime-view-scroll-down-entity))
743 (define-key mime-view-mode-map
744 "\C-m" (function mime-view-next-line-content))
745 (define-key mime-view-mode-map
746 "\C-\M-m" (function mime-view-previous-line-content))
747 (define-key mime-view-mode-map
748 "v" (function mime-view-play-current-entity))
749 (define-key mime-view-mode-map
750 "e" (function mime-view-extract-current-entity))
751 (define-key mime-view-mode-map
752 "\C-c\C-p" (function mime-view-print-current-entity))
753 (define-key mime-view-mode-map
754 "a" (function mime-view-follow-current-entity))
755 (define-key mime-view-mode-map
756 "q" (function mime-view-quit))
757 (define-key mime-view-mode-map
758 "h" (function mime-view-show-summary))
759 (define-key mime-view-mode-map
760 "\C-c\C-x" (function mime-view-kill-buffer))
761 (define-key mime-view-mode-map
762 "<" (function beginning-of-buffer))
763 (define-key mime-view-mode-map
764 ">" (function end-of-buffer))
765 (define-key mime-view-mode-map
766 "?" (function describe-mode))
767 (if (functionp default)
768 (setq mime-view-mode-map
769 (append mime-view-mode-map (list (cons t default)))
772 (define-key mime-view-mode-map
773 mouse-button-2 (function mime-button-dispatcher))
775 (cond (running-xemacs
776 (define-key mime-view-mode-map
777 mouse-button-3 (function mime-view-xemacs-popup-menu))
779 ((>= emacs-major-version 19)
780 (define-key mime-view-mode-map [menu-bar mime-view]
781 (cons mime-view-menu-title
782 (make-sparse-keymap mime-view-menu-title)))
785 (define-key mime-view-mode-map
786 (vector 'menu-bar 'mime-view (car item))
787 (cons (nth 1 item)(nth 2 item))
790 (reverse mime-view-menu-list)
793 (use-local-map mime-view-mode-map)
794 (run-hooks 'mime-view-define-keymap-hook)
797 (defun mime-view-mode (&optional mother ctl encoding ibuf obuf
798 default-keymap-or-function)
799 "Major mode for viewing MIME message.
801 Here is a list of the standard keys for mime-view-mode.
806 u Move to upper content
807 p or M-TAB Move to previous content
808 n or TAB Move to next content
809 SPC Scroll up or move to next content
810 M-SPC or DEL Scroll down or move to previous content
811 RET Move to next line
812 M-RET Move to previous line
813 v Decode current content as `play mode'
814 e Decode current content as `extract mode'
815 C-c C-p Decode current content as `print mode'
816 a Followup to current content.
819 button-2 Move to point under the mouse cursor
820 and decode current content as `play mode'
823 (let ((buf (get-buffer mime/output-buffer-name)))
829 (let ((ret (mime-view-setup-buffer ctl encoding ibuf obuf))
830 (win-conf (current-window-configuration))
833 (switch-to-buffer ret)
834 (setq mime::preview/original-window-configuration win-conf)
837 (setq mime-mother-buffer mother)
839 (mime-view-define-keymap default-keymap-or-function)
840 (let ((point (next-single-property-change (point-min) 'mime-view-cinfo)))
843 (goto-char (point-min))
844 (search-forward "\n\n" nil t)
846 (run-hooks 'mime-view-mode-hook)
849 (autoload 'mime-view-play-current-entity "mime-play" "Play current entity." t)
851 (defun mime-view-extract-current-entity ()
852 "Extract current entity into file (maybe).
853 It decodes current entity to call internal or external method as
854 \"extract\" mode. The method is selected from variable
855 `mime/content-decoding-condition'."
857 (mime-view-play-current-entity "extract")
860 (defun mime-view-print-current-entity ()
861 "Print current entity (maybe).
862 It decodes current entity to call internal or external method as
863 \"print\" mode. The method is selected from variable
864 `mime/content-decoding-condition'."
866 (mime-view-play-current-entity "print")
869 (defun mime-view-follow-current-entity ()
870 "Write follow message to current entity.
871 It calls following-method selected from variable
872 `mime-view-following-method-alist'."
874 (let ((root-cinfo (get-text-property (point-min) 'mime-view-cinfo))
876 (while (null (setq cinfo (get-text-property (point) 'mime-view-cinfo)))
879 (let* ((p-beg (previous-single-property-change (point) 'mime-view-cinfo))
881 (rcnum (mime::content-info/rcnum cinfo))
886 (if (eq (next-single-property-change (point-min)
892 ((eq (next-single-property-change p-beg 'mime-view-cinfo)
896 (setq p-end (next-single-property-change p-beg 'mime-view-cinfo))
898 (setq p-end (point-max))
901 (setq p-end (point-max))
909 (next-single-property-change
910 (point) 'mime-view-cinfo))
912 (let ((rc (mime::content-info/rcnum
913 (get-text-property (point)
915 (or (equal rcnum (nthcdr (- (length rc) len) rc))
920 (setq p-end (point-max))
923 (let* ((mode (mime-preview/get-original-major-mode))
924 (new-name (format "%s-%s" (buffer-name) (reverse rcnum)))
926 (the-buf (current-buffer))
927 (a-buf mime-raw-buffer)
930 (set-buffer (setq new-buf (get-buffer-create new-name)))
932 (insert-buffer-substring the-buf p-beg p-end)
933 (goto-char (point-min))
934 (if (mime-view-header-visible-p rcnum root-cinfo)
935 (delete-region (goto-char (point-min))
936 (if (re-search-forward "^$" nil t)
940 (goto-char (point-min))
942 (goto-char (point-min))
943 (let ((rcnum (mime::content-info/rcnum cinfo)) ci str)
948 (setq ci (mime-article/rcnum-to-cinfo rcnum))
951 (mime::content-info/point-min ci)
952 (mime::content-info/point-max ci)
954 (std11-header-string-except
956 (apply (function regexp-or) fields)
958 (if (string= (mime::content-info/type ci)
965 (setq fields (std11-collect-field-names)
969 (let ((rest mime-view-following-required-fields-list))
971 (let ((field-name (car rest)))
972 (or (std11-field-body field-name)
979 (set-buffer mime-mother-buffer)
980 (set-buffer mime-raw-buffer)
981 (std11-field-body field-name)
985 (setq rest (cdr rest))
987 (eword-decode-header)
989 (let ((f (cdr (assq mode mime-view-following-method-alist))))
994 "Sorry, following method for %s is not implemented yet."
999 (defun mime-view-display-x-face ()
1001 (save-window-excursion
1002 (set-buffer mime-raw-buffer)
1003 (mime-view-x-face-function)
1006 (defun mime-view-move-to-upper ()
1007 "Move to upper entity.
1008 If there is no upper entity, call function `mime-view-quit'."
1011 (while (null (setq cinfo (get-text-property (point) 'mime-view-cinfo)))
1014 (let ((r (mime-article/rcnum-to-cinfo
1015 (cdr (mime::content-info/rcnum cinfo))
1016 (get-text-property 1 'mime-view-cinfo)))
1019 (while (setq point (previous-single-property-change
1020 (point) 'mime-view-cinfo))
1022 (if (eq r (get-text-property (point) 'mime-view-cinfo))
1029 (defun mime-view-move-to-previous ()
1030 "Move to previous entity.
1031 If there is no previous entity, it calls function registered in
1032 variable `mime-view-over-to-previous-method-alist'."
1034 (while (null (get-text-property (point) 'mime-view-cinfo))
1037 (let ((point (previous-single-property-change (point) 'mime-view-cinfo)))
1040 (let ((f (assq mime::preview/original-major-mode
1041 mime-view-over-to-previous-method-alist)))
1047 (defun mime-view-move-to-next ()
1048 "Move to next entity.
1049 If there is no previous entity, it calls function registered in
1050 variable `mime-view-over-to-next-method-alist'."
1052 (let ((point (next-single-property-change (point) 'mime-view-cinfo)))
1055 (let ((f (assq mime::preview/original-major-mode
1056 mime-view-over-to-next-method-alist)))
1062 (defun mime-view-scroll-up-entity (&optional h)
1063 "Scroll up current entity.
1064 If reached to (point-max), it calls function registered in variable
1065 `mime-view-over-to-next-method-alist'."
1068 (setq h (1- (window-height)))
1070 (if (= (point) (point-max))
1071 (let ((f (assq mime::preview/original-major-mode
1072 mime-view-over-to-next-method-alist)))
1077 (or (next-single-property-change (point) 'mime-view-cinfo)
1080 (if (> (point) point)
1085 (defun mime-view-scroll-down-entity (&optional h)
1086 "Scroll down current entity.
1087 If reached to (point-min), it calls function registered in variable
1088 `mime-view-over-to-previous-method-alist'."
1091 (setq h (1- (window-height)))
1093 (if (= (point) (point-min))
1094 (let ((f (assq mime::preview/original-major-mode
1095 mime-view-over-to-previous-method-alist)))
1102 (while (> (point) 1)
1104 (previous-single-property-change (point)
1110 (setq point (point-min))
1112 (forward-line (- h))
1113 (if (< (point) point)
1117 (defun mime-view-next-line-content ()
1119 (mime-view-scroll-up-entity 1)
1122 (defun mime-view-previous-line-content ()
1124 (mime-view-scroll-down-entity 1)
1127 (defun mime-view-quit ()
1128 "Quit from MIME-View buffer.
1129 It calls function registered in variable
1130 `mime-view-quitting-method-alist'."
1132 (let ((r (assq mime::preview/original-major-mode
1133 mime-view-quitting-method-alist)))
1138 (defun mime-view-show-summary ()
1140 It calls function registered in variable
1141 `mime-view-show-summary-method'."
1143 (let ((r (assq mime::preview/original-major-mode
1144 mime-view-show-summary-method)))
1149 (defun mime-view-kill-buffer ()
1151 (kill-buffer (current-buffer))
1158 (provide 'mime-view)
1160 (run-hooks 'mime-view-load-hook)
1162 ;;; mime-view.el ends here