2 ;;; A MIME viewer for GNU Emacs
4 ;;; by Morioka Tomohiko, 1994/07/13
23 (defconst mime-viewer/RCS-ID
24 "$Id: tm-view.el,v 6.20 1995/05/10 19:18:05 morioka Exp $")
26 (defconst mime-viewer/version (get-version-string mime-viewer/RCS-ID))
27 (defconst mime/viewer-version mime-viewer/version)
33 (defconst mime/tspecials "\000-\040()<>@,;:\\\"/[\093?.=")
34 (defconst mime/token-regexp
35 (concat "[^" mime/tspecials "]*"))
36 (defconst mime/content-type-subtype-regexp
37 (concat mime/token-regexp "/" mime/token-regexp))
38 (defconst mime/content-parameter-value-regexp
40 message/quoted-string-regexp
43 (defconst mime/output-buffer-name "*MIME-out*")
44 (defconst mime/decoding-buffer-name "*MIME-decoding*")
50 (defvar mime/content-decoding-condition
51 ;;(setq mime/content-decoding-condition
52 '(((type . "text/plain")
53 (method "tm-plain" nil 'file 'type 'encoding 'mode 'name))
54 ;;((type . "text/x-latex")
55 ;; (method "tm-latex" nil 'file 'type 'encoding 'mode 'name))
56 ((type . "audio/basic")
57 (method "tm-au" nil 'file 'type 'encoding 'mode 'name))
59 (method "tm-image" nil 'file 'type 'encoding 'mode 'name))
60 ((type . "image/jpeg")
61 (method "tm-image" nil 'file 'type 'encoding 'mode 'name))
62 ((type . "image/tiff")
63 (method "tm-image" nil 'file 'type 'encoding 'mode 'name))
64 ((type . "image/x-tiff")
65 (method "tm-image" nil 'file 'type 'encoding 'mode 'name))
66 ((type . "image/x-xbm")
67 (method "tm-image" nil 'file 'type 'encoding 'mode 'name))
68 ((type . "image/x-pic")
69 (method "tm-image" nil 'file 'type 'encoding 'mode 'name))
70 ((type . "video/mpeg")
71 (method "tm-mpeg" nil 'file 'type 'encoding 'mode 'name))
72 ((type . "application/octet-stream")
73 (method "tm-file" nil 'file 'type 'encoding 'mode 'name))
74 ;;((type . "message/external-body")
75 ;; (method "xterm" nil
76 ;; "-e" "showexternal"
77 ;; 'file '"access-type" '"name" '"site" '"directory"))
78 ((type . "message/partial")
79 (method . mime/decode-message/partial-region))
80 ((type . "message/rfc822")
81 (method "tm-file" nil 'file 'type 'encoding 'mode 'name))
83 "-m" "tm" "-x" "-d" "-z" "-e" 'file)(mode . "play"))
86 (defvar mime-viewer/content-filter-alist
87 '(("text/plain" . mime-viewer/filter-text/plain)))
89 (defvar mime-viewer/content-subject-function
91 (lambda (cnum subj ctype params)
93 (format "[%s %s (%s)]\n"
97 (format "%s" (+ num 1))
104 (defvar mime-viewer/content-header-filter-function
105 (function mime-viewer/default-content-header-filter-function))
107 (defvar mime-viewer/childrens-header-showing-Content-Type-list
110 (defvar mime-viewer/ignored-field-list
113 (defun mime-viewer/default-content-header-filter-function (cnum cinfo)
114 (if (and (listp cnum)
116 (mime::content-info/type
117 (mime::article/get-content-region (butlast cnum) cinfo)
119 mime-viewer/childrens-header-showing-Content-Type-list)
121 (delete-region (goto-char (point-min))
122 (or (and (re-search-forward "^$" nil t)
128 (narrow-to-region (goto-char (point-min))
129 (or (and (re-search-forward "^$" nil t)
135 (goto-char (point-min))
136 (while (and (re-search-forward
137 (concat "^" (regexp-quote field) ":")
144 (concat message/field-body-regexp "\n")
150 )) mime-viewer/ignored-field-list)
153 (defvar mime-viewer/default-showing-Content-Type-list
154 '("text/plain" "text/richtext" "text/enriched"
155 "text/x-latex" "application/x-latex"
156 "application/octet-stream" nil))
158 (defvar mime-viewer/decoding-mode "play" "MIME body decoding mode")
164 (defun mime::viewer/quitting-method-for-gnus4 ()
165 (mime-viewer/kill-buffer)
166 (delete-other-windows)
167 (gnus-article-show-summary)
168 (if (null gnus-have-all-headers)
169 (gnus-summary-select-article nil t)
172 (defun mime::viewer/quitting-method-for-rmail ()
173 (mime-viewer/kill-buffer)
175 (delete-other-windows)
178 (defun mime::viewer/quitting-method-for-mh-e ()
179 (let ((win (get-buffer-window
180 mime/output-buffer-name))
182 (mime::preview-content-info/buffer
183 (car mime::preview/content-list)))
188 (mime-viewer/kill-buffer)
190 (let ((name (buffer-name buf)))
191 (string-match "show-" name)
192 (substring name (match-end 0))
194 ;; patch for mh-narrow.el
195 ;; by YAMAOKA Katsumi <yamaoka@ga.sony.co.jp>
196 (if (and (featurep 'mh-narrow)
197 (fboundp 'mh-narrow-to-page))
199 (set-buffer mh-show-buffer)
200 (mh-narrow-to-page)))
204 (defvar mime-viewer/quitting-method-alist
205 '((gnus-article-mode . mime::viewer/quitting-method-for-gnus4)
206 (rmail-mode . mime::viewer/quitting-method-for-rmail)
207 (mh-show-mode . mime::viewer/quitting-method-for-mh-e)
208 (mime/show-message-mode
210 (set-window-configuration
211 mime/show-mode-old-window-configuration)
212 (let ((mother mime/mother-buffer))
214 (mime::preview-content-info/buffer
215 (car mime::preview/content-list)))
216 (mime-viewer/kill-buffer)
217 (pop-to-buffer mother)
218 (goto-char (point-min))
219 (mime-viewer/up-content)
230 (defun mime::make-content-info (beg end ctype params encoding children)
231 (vector beg end ctype params encoding children)
234 (defun mime::content-info/point-min (cinfo)
238 (defun mime::content-info/point-max (cinfo)
242 (defun mime::content-info/type (cinfo)
246 (defun mime::content-info/parameters (cinfo)
250 (defun mime::content-info/encoding (cinfo)
254 (defun mime::content-info/children (cinfo)
258 ;;; @@ preview-content-info
261 (defun mime::make-preview-content-info (beg end buf cinfo)
262 (vector beg end buf cinfo)
265 (defun mime::preview-content-info/point-min (pcinfo)
269 (defun mime::preview-content-info/point-max (pcinfo)
273 (defun mime::preview-content-info/buffer (pcinfo)
277 (defun mime::preview-content-info/content-info (pcinfo)
282 ;;; @ buffer local variables
285 (defvar mime::article/content-info)
286 (defvar mime::article/preview-buffer)
288 (defvar mime::preview/content-list nil)
289 (defvar mime::preview/original-major-mode nil)
295 (defun mime-viewer/parse-message (&optional ctl encoding)
296 (make-variable-buffer-local 'mime::article/content-info)
297 (setq mime::article/content-info (mime-viewer/parse ctl encoding))
298 (let ((ret (mime-viewer/make-preview-buffer)))
299 (make-variable-buffer-local 'mime::article/preview-buffer)
300 (setq mime::article/preview-buffer (car ret))
303 (defun mime-viewer/parse (&optional ctl encoding)
306 (setq ctl (or (mime/Content-Type)
308 (setq encoding (or (mime/Content-Transfer-Encoding)
310 (let ((ctype (car ctl))
313 (let ((boundary (assoc "boundary" params)))
314 (goto-char (point-min))
315 (search-forward "\n\n" nil t)
320 (message/strip-quoted-string (cdr boundary)))
323 (if (search-forward (concat "--" boundary "--\n") nil t)
327 (mime-viewer/parse-multipart
330 boundary ctype params encoding)
332 ((string= ctype "message/rfc822")
333 (mime::make-content-info
334 (point-min) (point-max)
335 ctype params encoding
338 (narrow-to-region (progn
339 (goto-char (point-min))
340 (if (re-search-forward "^$" nil t)
345 (list (mime-viewer/parse))
350 (mime::make-content-info (point-min) (point-max)
351 ctype params encoding nil)
355 (defun mime-viewer/parse-multipart (beg end boundary ctype params encoding)
356 (let ((sep (concat "^--" (regexp-quote boundary) "$"))
357 cb ce ct ret ncb children)
360 (narrow-to-region beg end)
361 (goto-char (point-min))
362 (search-forward (concat "--" boundary "\n") nil t)
363 (setq cb (match-end 0))
364 (while (re-search-forward sep nil t)
365 (setq ce (match-beginning 0))
366 (setq ncb (match-end 0))
369 (narrow-to-region cb ce)
370 (setq ret (apply (function mime-viewer/parse)
371 (cond ((string= ctype "multipart/digest")
372 '(("message/rfc822") "7bit")
374 (t '(("text/plain") "7bit"))
378 (setq children (nconc children (list ret)))
379 (goto-char (mime::content-info/point-max ret))
380 (search-forward (concat "--" boundary "\n") nil t)
381 (goto-char (setq cb (match-end 0)))
383 (setq ce (point-max))
386 (narrow-to-region cb ce)
387 (setq ret (apply (function mime-viewer/parse)
388 (cond ((string= ctype "multipart/mixed")
389 '(("text/plain") "7bit")
391 ((string= ctype "multipart/digest")
392 '(("message/rfc822") "7bit")
396 (setq children (nconc children (list ret)))
398 (setq beg (point-min))
400 (mime::make-content-info beg end ctype params encoding children)
403 (defun mime::parse-parameter (str)
404 (let ((ret (message::parse "\;" str)))
407 (message::parse mime/token-regexp
408 (message::parsed/rest ret)))
409 (let ((parameter (downcase (message::parsed/matched ret))))
410 (if (setq ret (message::parse "=" (message::parsed/rest ret)))
413 mime/content-parameter-value-regexp
414 (message::parsed/rest ret)))
415 (message::make-parsed
417 (message/strip-quoted-string
418 (message::parsed/matched ret))
420 (message::parsed/rest ret)
424 (defun mime::parse-field-body/Content-Type (str)
425 (let ((ret (message::parse mime/content-type-subtype-regexp str)))
427 (let ((ctype (downcase (message::parsed/matched ret)))
430 (setq str (message::parsed/rest ret))
431 (setq ret (mime::parse-parameter str))
433 (setq dest (cons (message::parsed/matched ret) dest))
435 (if (string-match "^[ \t]*$" str)
436 (cons ctype (reverse dest))
439 (defun mime/Content-Type ()
440 (let ((str (message/get-field-body "Content-Type")))
442 (mime::parse-field-body/Content-Type
443 (message/unfolding-string str))
446 (defun mime/Content-Transfer-Encoding (&optional default-encoding)
447 (let ((str (message/get-field-body "Content-Transfer-Encoding")))
453 (defun mime/get-subject (param)
457 (or (and (setq ret (assoc "name" param))
458 (message/strip-quoted-string (cdr ret))
460 (and (setq ret (assoc "x-name" param))
461 (message/strip-quoted-string (cdr ret))
464 (narrow-to-region (point-min)
465 (or (and (search-forward "\n\n" nil t)
470 (message/get-field-body "Content-Description")
471 (message/get-field-body "Subject")
476 (defun mime/get-name (param)
477 (replace-as-filename (mime/get-subject param))
480 (defun mime-viewer/make-preview-buffer (&optional buf cinfo obuf)
481 (let ((the-buf (current-buffer)) pcl dest)
489 (switch-to-buffer buf)
490 (setq cinfo mime::article/content-info)
493 (setq obuf (concat "*Preview-" (buffer-name buf) "*"))
495 (setq pcl (mime::make-flat-content-list cinfo))
496 (if (get-buffer obuf)
503 (let ((beg (mime::content-info/point-min cell))
504 (end (mime::content-info/point-max cell))
505 (ctype (mime::content-info/type cell))
506 (params (mime::content-info/parameters cell))
507 cnum e nb ne subj str)
508 (setq cnum (mime::get-point-content-number beg cinfo))
509 (switch-to-buffer buf)
514 mime-viewer/default-showing-Content-Type-list))
518 (re-search-forward "^$" nil t)
522 (if (> e (point-max))
525 (setq str (buffer-substring beg e))
526 (switch-to-buffer obuf)
533 (narrow-to-region nb ne)
534 (mime/decode-message-header)
535 (setq subj (mime/get-subject params))
539 mime-viewer/content-filter-alist))))
540 (if (and f (fboundp f))
541 (funcall f ctype params)
543 (funcall mime-viewer/content-header-filter-function
546 (funcall mime-viewer/content-subject-function
547 cnum subj ctype params)
548 (setq ne (point-max))
549 (mime::make-preview-content-info nb (- ne 1)
555 (set-buffer-modified-p nil)
556 (setq buffer-read-only t)
557 (switch-to-buffer the-buf)
562 ;;; @ content information
565 (defun mime::get-point-content-number (p &optional cinfo)
567 (setq cinfo mime::article/content-info)
569 (let ((b (mime::content-info/point-min cinfo))
570 (e (mime::content-info/point-max cinfo))
571 (c (mime::content-info/children cinfo))
573 (if (and (<= b p)(<= p e))
574 (or (let (co ret (sn 0))
578 (setq ret (mime::get-point-content-number p co))
579 (cond ((eq ret t) (throw 'tag (list sn)))
580 (ret (throw 'tag (cons sn ret)))
587 (defun mime::article/get-content-region (cn &optional cinfo)
589 (setq cinfo mime::article/content-info)
596 (let ((rc (nth sn (mime::content-info/children cinfo))))
598 (mime::article/get-content-region (cdr cn) rc)
602 (defun mime::make-flat-content-list (&optional cinfo)
604 (setq cinfo mime::article/content-info)
606 (let ((dest (list cinfo))
607 (rcl (mime::content-info/children cinfo))
610 (setq dest (nconc dest (mime::make-flat-content-list (car rcl))))
615 (defun mime::point-preview-content (p &optional pcl)
617 (setq pcl mime::preview/content-list)
623 (if (and (<= (mime::preview-content-info/point-min cell) p)
624 (<= p (mime::preview-content-info/point-max cell))
637 (defun mime/Quoted-Printable-decode-region (beg end)
641 (narrow-to-region beg end)
642 (goto-char (point-min))
643 (while (re-search-forward "=\n" nil t)
646 (goto-char (point-min))
648 (while (re-search-forward mime/Quoted-Printable-octet-regexp nil t)
649 (setq b (match-beginning 0))
650 (setq e (match-end 0))
651 (setq str (buffer-substring b e))
653 (insert (mime/Quoted-Printable-decode-string str))
657 (defun mime/Base64-decode-region (beg end)
661 (narrow-to-region beg end)
662 (goto-char (point-min))
663 (while (search-forward "\n" nil t)
666 (let ((str (buffer-substring (point-min)(point-max))))
667 (delete-region (point-min)(point-max))
668 (insert (mime/base64-decode-string str))
671 (defun mime/make-method-args (cal format)
676 (let ((ret (cdr (assoc (eval arg) cal))))
684 (defun mime/start-external-method-region (beg end cal)
687 (narrow-to-region beg end)
689 (let ((method (cdr (assoc 'method cal)))
690 (name (mime/get-name cal))
693 (let ((file (make-temp-name
694 (expand-file-name "TM" mime/tmp-dir)))
699 (if (re-search-forward "^$" nil t)
705 (write-region b end file)
707 'name (replace-as-filename name) cal))
708 (setq cal (put-alist 'file file cal))
711 mime/output-buffer-name (car method)
713 (mime/make-method-args cal (cdr (cdr method)))
715 (apply (function start-process) args)
716 (mime/show-output-buffer)
720 (defun mime/decode-message/partial-region (beg end cal)
722 (let* ((root-dir (expand-file-name
723 (concat "m-prts-" (user-login-name)) mime/tmp-dir))
724 (id (cdr (assoc "id" cal)))
725 (number (cdr (assoc "number" cal)))
726 (total (cdr (assoc "total" cal)))
727 (the-buf (current-buffer))
729 (mother mime::article/preview-buffer))
730 (if (not (file-exists-p root-dir))
731 (make-directory root-dir)
733 (setq id (replace-as-filename id))
734 (setq root-dir (concat root-dir "/" id))
735 (if (not (file-exists-p root-dir))
736 (make-directory root-dir)
738 (setq file (concat root-dir "/FULL"))
739 (if (not (file-exists-p file))
741 (re-search-forward "^$")
742 (goto-char (+ (match-end 0) 1))
743 (setq file (concat root-dir "/" number))
744 (write-region (point) (point-max) file)
745 (if (get-buffer "*MIME-temp*")
746 (kill-buffer "*MIME-temp*")
748 (switch-to-buffer "*MIME-temp*")
750 (max (string-to-int total))
754 (setq file (concat root-dir "/" (int-to-string i)))
755 (if (not (file-exists-p file))
757 (switch-to-buffer the-buf)
760 (insert-file-contents file)
761 (goto-char (point-max))
764 (delete-other-windows)
765 (write-file (concat root-dir "/FULL"))
766 (setq major-mode 'mime/show-message-mode)
767 (mime/viewer-mode mother)
768 (pop-to-buffer (current-buffer))
772 (delete-other-windows)
774 (setq major-mode 'mime/show-message-mode)
775 (mime/viewer-mode mother)
776 (pop-to-buffer (current-buffer))
780 (defun mime/get-content-decoding-alist (al)
781 (get-unified-alist mime/content-decoding-condition al)
784 (defun mime::article/decode-content-region (cinfo)
785 (let ((beg (mime::content-info/point-min cinfo))
786 (end (mime::content-info/point-max cinfo))
787 (ctype (mime::content-info/type cinfo))
788 (params (mime::content-info/parameters cinfo))
789 (encoding (mime::content-info/encoding cinfo))
792 (let (method cal ret)
793 (setq cal (append (list (cons 'type ctype)
794 (cons 'encoding encoding)
795 (cons 'major-mode major-mode)
798 (if mime-viewer/decoding-mode
800 (cons 'mode mime-viewer/decoding-mode)
803 (setq ret (mime/get-content-decoding-alist cal))
804 (setq method (cdr (assoc 'method ret)))
805 (cond ((and (symbolp method)
807 (funcall method beg end ret)
809 ((and (listp method)(stringp (car method)))
810 (mime/start-external-method-region beg end ret)
812 (t (mime/show-output-buffer
813 "No method are specified for %s\n" ctype)
818 (defun mime/show-output-buffer (&rest forms)
819 (let ((the-buf (current-buffer)))
820 (if (null (get-buffer-window mime/output-buffer-name))
821 (split-window-vertically (/ (* (window-height) 3) 4))
823 (pop-to-buffer mime/output-buffer-name)
824 (goto-char (point-max))
826 (insert (apply (function format) forms))
828 (pop-to-buffer the-buf)
835 (defun mime-viewer/filter-text/plain (ctype params)
838 (let ((charset (cdr (assoc "charset" params)))
842 (goto-char (point-min))
843 (narrow-to-region (point-min)
844 (or (and (search-forward "\n\n" nil t)
847 (goto-char (point-min))
848 (mime/Content-Transfer-Encoding "7bit")
850 (beg (point-min)) (end (point-max))
852 (goto-char (point-min))
853 (if (search-forward "\n\n" nil t)
854 (setq beg (match-end 0))
856 (if (cond ((string= encoding "quoted-printable")
857 (mime/Quoted-Printable-decode-region beg end)
859 ((string= encoding "base64")
860 (mime/Base64-decode-region beg end)
862 (mime/code-convert-region-to-emacs beg (point-max) charset)
867 ;;; @ MIME viewer mode
870 (defvar mime/viewer-mode-map nil)
871 (if (null mime/viewer-mode-map)
873 (setq mime/viewer-mode-map (make-keymap))
874 (suppress-keymap mime/viewer-mode-map)
875 (define-key mime/viewer-mode-map
876 "u" (function mime-viewer/up-content))
877 (define-key mime/viewer-mode-map
878 "p" (function mime-viewer/previous-content))
879 (define-key mime/viewer-mode-map
880 "n" (function mime-viewer/next-content))
881 (define-key mime/viewer-mode-map
882 " " (function mime-viewer/scroll-up-content))
883 (define-key mime/viewer-mode-map
884 "\M- " (function mime-viewer/scroll-down-content))
885 (define-key mime/viewer-mode-map
886 "\177" (function mime-viewer/scroll-down-content))
887 (define-key mime/viewer-mode-map
888 "\C-m" (function mime-viewer/next-line-content))
889 (define-key mime/viewer-mode-map
890 "\C-\M-m" (function mime-viewer/previous-line-content))
891 (define-key mime/viewer-mode-map
892 "v" (function mime-viewer/play-content))
893 (define-key mime/viewer-mode-map
894 "e" (function mime-viewer/extract-content))
895 (define-key mime/viewer-mode-map
896 "\C-c\C-p" (function mime-viewer/print-content))
897 (define-key mime/viewer-mode-map
898 "q" (function mime-viewer/quit))
899 (define-key mime/viewer-mode-map
900 "\C-c\C-x" (function mime-viewer/kill-buffer))
903 (defun mime/viewer-mode (&optional mother ctl encoding)
904 "Major mode for viewing MIME message.
906 u Move to upper content
907 p Move to previous content
908 n Move to next content
912 RET Move to next line
913 M-RET Move to previous line
914 v Decode the content as `play mode'
915 e Decode the content as `extract mode'
916 C-c C-p Decode the content as `print mode'
920 (let ((buf (get-buffer mime/output-buffer-name))
921 (the-buf (current-buffer))
925 (switch-to-buffer buf)
927 (switch-to-buffer the-buf)
929 (let ((ret (mime-viewer/parse-message ctl encoding))
931 (switch-to-buffer (car ret))
932 (setq major-mode 'mime/viewer-mode)
933 (setq mode-name "MIME-View")
934 (make-variable-buffer-local 'mime::preview/original-major-mode)
935 (setq mime::preview/original-major-mode
938 (make-variable-buffer-local
939 'mime/show-mode-old-window-configuration)
940 (setq mime/show-mode-old-window-configuration
941 (current-window-configuration))
942 (make-variable-buffer-local 'mime/mother-buffer)
943 (setq mime/mother-buffer mother)
944 'mime/show-message-mode)
946 (use-local-map mime/viewer-mode-map)
947 (make-variable-buffer-local 'mime::preview/content-list)
948 (setq mime::preview/content-list (nth 1 ret))
950 (let ((ce (mime::preview-content-info/point-max
951 (car mime::preview/content-list)
954 (goto-char (point-min))
955 (search-forward "\n\n" nil t)
956 (setq e (match-end 0))
960 (run-hooks 'mime/viewer-mode-hook)
963 (defun mime::preview/decode-content ()
965 (let ((pc (mime::point-preview-content (point))))
967 (let ((the-buf (current-buffer)))
968 (switch-to-buffer (mime::preview-content-info/buffer pc))
969 (mime::article/decode-content-region
970 (mime::preview-content-info/content-info pc))
971 (if (eq (current-buffer)
972 (mime::preview-content-info/buffer pc))
973 (switch-to-buffer the-buf)
977 (defun mime-viewer/play-content ()
979 (let ((mime-viewer/decoding-mode "play"))
980 (mime::preview/decode-content)
983 (defun mime-viewer/extract-content ()
985 (let ((mime-viewer/decoding-mode "extract"))
986 (mime::preview/decode-content)
989 (defun mime-viewer/print-content ()
991 (let ((mime-viewer/decoding-mode "print"))
992 (mime::preview/decode-content)
995 (defun mime-viewer/up-content ()
997 (let ((pc (mime::point-preview-content (point))) cinfo
998 (the-buf (current-buffer))
1000 (switch-to-buffer (mime::preview-content-info/buffer pc))
1001 (setq cinfo (mime::preview-content-info/content-info pc))
1002 (setq cn (mime::get-point-content-number
1003 (mime::content-info/point-min cinfo)))
1005 (mime-viewer/quit the-buf
1006 (mime::preview-content-info/buffer pc)
1008 (setq r (mime::article/get-content-region (butlast cn)))
1009 (switch-to-buffer the-buf)
1011 (let ((rpcl mime::preview/content-list) cell)
1013 (setq cell (car rpcl))
1014 (if (eq r (mime::preview-content-info/content-info cell))
1016 (goto-char (mime::preview-content-info/point-min cell))
1019 (setq rpcl (cdr rpcl))
1023 (defun mime-viewer/previous-content ()
1025 (let* ((pcl mime::preview/content-list)
1027 (i (- (length pcl) 1))
1031 (setq beg (mime::preview-content-info/point-min (nth i pcl)))
1033 (throw 'tag (goto-char beg))
1039 (defun mime-viewer/next-content ()
1041 (let ((pcl mime::preview/content-list)
1046 (setq beg (mime::preview-content-info/point-min (car pcl)))
1048 (throw 'tag (goto-char beg))
1050 (setq pcl (cdr pcl))
1054 (defun mime-viewer/scroll-up-content (&optional h)
1057 (setq h (- (window-height) 1))
1059 (let ((pcl mime::preview/content-list)
1065 (setq beg (mime::preview-content-info/point-min (car pcl)))
1069 (setq pcl (cdr pcl))
1077 (defun mime-viewer/scroll-down-content (&optional h)
1080 (setq h (- (window-height) 1))
1082 (let ((pcl mime::preview/content-list)
1086 (or (let ((i (- (length pcl) 1)))
1089 (setq beg (mime::preview-content-info/point-min
1097 (forward-line (- h))
1102 (defun mime-viewer/next-line-content ()
1104 (mime-viewer/scroll-up-content 1)
1107 (defun mime-viewer/previous-line-content ()
1109 (mime-viewer/scroll-down-content 1)
1112 (defun mime-viewer/quit (&optional the-buf buf)
1115 (setq the-buf (current-buffer))
1118 (setq buf (mime::preview-content-info/buffer
1119 (mime::point-preview-content (point))))
1122 (switch-to-buffer buf)
1123 (assoc major-mode mime-viewer/quitting-method-alist)
1127 (switch-to-buffer the-buf)
1132 (defun mime-viewer/kill-buffer ()
1134 (kill-buffer (current-buffer))
1137 (fset 'mime/view-mode 'mime/viewer-mode)
1139 (run-hooks 'tm-view-load-hook)