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 6.18 1995/04/23 15:51:19 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)
170 (defun mime::viewer/quitting-method-for-rmail ()
171 (mime-viewer/kill-buffer)
173 (delete-other-windows)
176 (defun mime::viewer/quitting-method-for-mh-e ()
177 (let ((win (get-buffer-window
178 mime/output-buffer-name))
180 (mime::preview-content-info/buffer
181 (car mime::preview/content-list)))
186 (mime-viewer/kill-buffer)
188 (let ((name (buffer-name buf)))
189 (string-match "show-" name)
190 (substring name (match-end 0))
192 ;; patch for mh-narrow.el
193 ;; by YAMAOKA Katsumi <yamaoka@ga.sony.co.jp>
194 (if (and (featurep 'mh-narrow)
195 (fboundp 'mh-narrow-to-page))
197 (set-buffer mh-show-buffer)
198 (mh-narrow-to-page)))
202 (defvar mime-viewer/quitting-method-alist
203 '((gnus-article-mode . mime::viewer/quitting-method-for-gnus4)
204 (rmail-mode . mime::viewer/quitting-method-for-rmail)
205 (mh-show-mode . mime::viewer/quitting-method-for-mh-e)
206 (mime/show-message-mode
208 (set-window-configuration
209 mime/show-mode-old-window-configuration)
210 (let ((mother mime/mother-buffer))
212 (mime::preview-content-info/buffer
213 (car mime::preview/content-list)))
214 (mime-viewer/kill-buffer)
215 (pop-to-buffer mother)
216 (goto-char (point-min))
217 (mime-viewer/up-content)
228 (defun mime::make-content-info (beg end ctype params encoding children)
229 (vector beg end ctype params encoding children)
232 (defun mime::content-info/point-min (cinfo)
236 (defun mime::content-info/point-max (cinfo)
240 (defun mime::content-info/type (cinfo)
244 (defun mime::content-info/parameters (cinfo)
248 (defun mime::content-info/encoding (cinfo)
252 (defun mime::content-info/children (cinfo)
256 ;;; @@ preview-content-info
259 (defun mime::make-preview-content-info (beg end buf cinfo)
260 (vector beg end buf cinfo)
263 (defun mime::preview-content-info/point-min (pcinfo)
267 (defun mime::preview-content-info/point-max (pcinfo)
271 (defun mime::preview-content-info/buffer (pcinfo)
275 (defun mime::preview-content-info/content-info (pcinfo)
280 ;;; @ buffer local variables
283 (defvar mime::article/content-info)
284 (defvar mime::article/preview-buffer)
286 (defvar mime::preview/content-list nil)
287 (defvar mime::preview/original-major-mode nil)
293 (defun mime-viewer/parse-message (&optional ctl encoding)
294 (make-variable-buffer-local 'mime::article/content-info)
295 (setq mime::article/content-info (mime-viewer/parse ctl encoding))
296 (let ((ret (mime-viewer/make-preview-buffer)))
297 (make-variable-buffer-local 'mime::article/preview-buffer)
298 (setq mime::article/preview-buffer (car ret))
301 (defun mime-viewer/parse (&optional ctl encoding)
304 (setq ctl (or (mime/Content-Type)
306 (setq encoding (or (mime/Content-Transfer-Encoding)
308 (let ((ctype (car ctl))
311 (let ((boundary (assoc "boundary" params)))
312 (goto-char (point-min))
313 (search-forward "\n\n" nil t)
318 (message/strip-quoted-string (cdr boundary)))
321 (if (search-forward (concat "--" boundary "--\n") nil t)
325 (mime-viewer/parse-multipart
328 boundary ctype params encoding)
330 ((string= ctype "message/rfc822")
331 (mime::make-content-info
332 (point-min) (point-max)
333 ctype params encoding
336 (narrow-to-region (progn
337 (goto-char (point-min))
338 (if (re-search-forward "^$" nil t)
343 (list (mime-viewer/parse))
348 (mime::make-content-info (point-min) (point-max)
349 ctype params encoding nil)
353 (defun mime-viewer/parse-multipart (beg end boundary ctype params encoding)
354 (let ((sep (concat "^--" (regexp-quote boundary) "$"))
355 cb ce ct ret ncb children)
358 (narrow-to-region beg end)
359 (goto-char (point-min))
360 (search-forward (concat "--" boundary "\n") nil t)
361 (setq cb (match-end 0))
362 (while (re-search-forward sep nil t)
363 (setq ce (match-beginning 0))
364 (setq ncb (match-end 0))
367 (narrow-to-region cb ce)
368 (setq ret (apply (function mime-viewer/parse)
369 (cond ((string= ctype "multipart/mixed")
370 '(("text/plain") "7bit")
372 ((string= ctype "multipart/digest")
373 '(("message/rfc822") "7bit")
377 (setq children (nconc children (list ret)))
378 (goto-char (mime::content-info/point-max ret))
379 (search-forward (concat "--" boundary "\n") nil t)
380 (goto-char (setq cb (match-end 0)))
382 (setq ce (point-max))
385 (narrow-to-region cb ce)
386 (setq ret (apply (function mime-viewer/parse)
387 (cond ((string= ctype "multipart/mixed")
388 '(("text/plain") "7bit")
390 ((string= ctype "multipart/digest")
391 '(("message/rfc822") "7bit")
395 (setq children (nconc children (list ret)))
397 (setq beg (point-min))
399 (mime::make-content-info beg end ctype params encoding children)
402 (defun mime::parse-parameter (str)
403 (let ((ret (message::parse "\;" str)))
406 (message::parse mime/token-regexp
407 (message::parsed/rest ret)))
408 (let ((parameter (downcase (message::parsed/matched ret))))
409 (if (setq ret (message::parse "=" (message::parsed/rest ret)))
412 mime/content-parameter-value-regexp
413 (message::parsed/rest ret)))
414 (message::make-parsed
416 (message/strip-quoted-string
417 (message::parsed/matched ret))
419 (message::parsed/rest ret)
423 (defun mime::parse-field-body/Content-Type (str)
424 (let ((ret (message::parse mime/content-type-subtype-regexp str)))
426 (let ((ctype (downcase (message::parsed/matched ret)))
429 (setq str (message::parsed/rest ret))
430 (setq ret (mime::parse-parameter str))
432 (setq dest (cons (message::parsed/matched ret) dest))
434 (if (string-match "^[ \t]*$" str)
435 (cons ctype (reverse dest))
438 (defun mime/Content-Type ()
439 (let ((str (message/get-field-body "Content-Type")))
441 (mime::parse-field-body/Content-Type
442 (message/unfolding-string str))
445 (defun mime/Content-Transfer-Encoding (&optional default-encoding)
446 (let ((str (message/get-field-body "Content-Transfer-Encoding")))
452 (defun mime/get-subject (param)
456 (or (and (setq ret (assoc "name" param))
457 (message/strip-quoted-string (cdr ret))
459 (and (setq ret (assoc "x-name" param))
460 (message/strip-quoted-string (cdr ret))
463 (narrow-to-region (point-min)
464 (or (and (search-forward "\n\n" nil t)
469 (message/get-field-body "Content-Description")
470 (message/get-field-body "Subject")
475 (defun mime/get-name (param)
476 (replace-as-filename (mime/get-subject param))
479 (defun mime-viewer/make-preview-buffer (&optional buf cinfo obuf)
480 (let ((the-buf (current-buffer)) pcl dest)
488 (switch-to-buffer buf)
489 (setq cinfo mime::article/content-info)
492 (setq obuf (concat "*Preview-" (buffer-name buf) "*"))
494 (setq pcl (mime::make-flat-content-list cinfo))
495 (if (get-buffer obuf)
502 (let ((beg (mime::content-info/point-min cell))
503 (end (mime::content-info/point-max cell))
504 (ctype (mime::content-info/type cell))
505 (params (mime::content-info/parameters cell))
506 cnum e nb ne subj str)
507 (setq cnum (mime::get-point-content-number beg cinfo))
508 (switch-to-buffer buf)
513 mime-viewer/default-showing-Content-Type-list))
517 (re-search-forward "^$" nil t)
521 (if (> e (point-max))
524 (setq str (buffer-substring beg e))
525 (switch-to-buffer obuf)
532 (narrow-to-region nb ne)
533 (mime/decode-message-header)
534 (setq subj (mime/get-subject params))
538 mime-viewer/content-filter-alist))))
539 (if (and f (fboundp f))
540 (funcall f ctype params)
542 (funcall mime-viewer/content-header-filter-function
545 (funcall mime-viewer/content-subject-function
546 cnum subj ctype params)
547 (setq ne (point-max))
548 (mime::make-preview-content-info nb (- ne 1)
554 (set-buffer-modified-p nil)
555 (setq buffer-read-only t)
556 (switch-to-buffer the-buf)
561 ;;; @ content information
564 (defun mime::get-point-content-number (p &optional cinfo)
566 (setq cinfo mime::article/content-info)
568 (let ((b (mime::content-info/point-min cinfo))
569 (e (mime::content-info/point-max cinfo))
570 (c (mime::content-info/children cinfo))
572 (if (and (<= b p)(<= p e))
573 (or (let (co ret (sn 0))
577 (setq ret (mime::get-point-content-number p co))
578 (cond ((eq ret t) (throw 'tag (list sn)))
579 (ret (throw 'tag (cons sn ret)))
586 (defun mime::article/get-content-region (cn &optional cinfo)
588 (setq cinfo mime::article/content-info)
595 (let ((rc (nth sn (mime::content-info/children cinfo))))
597 (mime::article/get-content-region (cdr cn) rc)
601 (defun mime::make-flat-content-list (&optional cinfo)
603 (setq cinfo mime::article/content-info)
605 (let ((dest (list cinfo))
606 (rcl (mime::content-info/children cinfo))
609 (setq dest (nconc dest (mime::make-flat-content-list (car rcl))))
614 (defun mime::point-preview-content (p &optional pcl)
616 (setq pcl mime::preview/content-list)
622 (if (and (<= (mime::preview-content-info/point-min cell) p)
623 (<= p (mime::preview-content-info/point-max cell))
636 (defun mime/Quoted-Printable-decode-region (beg end)
640 (narrow-to-region beg end)
641 (goto-char (point-min))
642 (while (re-search-forward "=\n" nil t)
645 (goto-char (point-min))
647 (while (re-search-forward mime/Quoted-Printable-octet-regexp nil t)
648 (setq b (match-beginning 0))
649 (setq e (match-end 0))
650 (setq str (buffer-substring b e))
652 (insert (mime/Quoted-Printable-decode-string str))
656 (defun mime/Base64-decode-region (beg end)
660 (narrow-to-region beg end)
661 (goto-char (point-min))
662 (while (search-forward "\n" nil t)
665 (let ((str (buffer-substring (point-min)(point-max))))
666 (delete-region (point-min)(point-max))
667 (insert (mime/base64-decode-string str))
670 (defun mime/make-method-args (cal format)
675 (let ((ret (cdr (assoc (eval arg) cal))))
683 (defun mime/start-external-method-region (beg end cal)
686 (narrow-to-region beg end)
688 (let ((method (cdr (assoc 'method cal)))
689 (name (mime/get-name cal))
692 (let ((file (make-temp-name
693 (expand-file-name "TM" mime/tmp-dir)))
698 (if (re-search-forward "^$" nil t)
704 (write-region b end file)
706 'name (replace-as-filename name) cal))
707 (setq cal (put-alist 'file file cal))
710 mime/output-buffer-name (car method)
712 (mime/make-method-args cal (cdr (cdr method)))
714 (apply (function start-process) args)
715 (mime/show-output-buffer)
719 (defun mime/decode-message/partial-region (beg end cal)
721 (let* ((root-dir (expand-file-name
722 (concat "m-prts-" (user-login-name)) mime/tmp-dir))
723 (id (cdr (assoc "id" cal)))
724 (number (cdr (assoc "number" cal)))
725 (total (cdr (assoc "total" cal)))
726 (the-buf (current-buffer))
728 (mother mime::article/preview-buffer))
729 (if (not (file-exists-p root-dir))
730 (make-directory root-dir)
732 (setq id (replace-as-filename id))
733 (setq root-dir (concat root-dir "/" id))
734 (if (not (file-exists-p root-dir))
735 (make-directory root-dir)
737 (setq file (concat root-dir "/FULL"))
738 (if (not (file-exists-p file))
740 (re-search-forward "^$")
741 (goto-char (+ (match-end 0) 1))
742 (setq file (concat root-dir "/" number))
743 (write-region (point) (point-max) file)
744 (if (get-buffer "*MIME-temp*")
745 (kill-buffer "*MIME-temp*")
747 (switch-to-buffer "*MIME-temp*")
749 (max (string-to-int total))
753 (setq file (concat root-dir "/" (int-to-string i)))
754 (if (not (file-exists-p file))
756 (switch-to-buffer the-buf)
759 (insert-file-contents file)
760 (goto-char (point-max))
763 (delete-other-windows)
764 (write-file (concat root-dir "/FULL"))
765 (setq major-mode 'mime/show-message-mode)
766 (mime/viewer-mode mother)
767 (pop-to-buffer (current-buffer))
771 (delete-other-windows)
773 (setq major-mode 'mime/show-message-mode)
774 (mime/viewer-mode mother)
775 (pop-to-buffer (current-buffer))
779 (defun mime/get-content-decoding-alist (al)
780 (get-unified-alist mime/content-decoding-condition al)
783 (defun mime::article/decode-content-region (cinfo)
784 (let ((beg (mime::content-info/point-min cinfo))
785 (end (mime::content-info/point-max cinfo))
786 (ctype (mime::content-info/type cinfo))
787 (params (mime::content-info/parameters cinfo))
788 (encoding (mime::content-info/encoding cinfo))
791 (let (method cal ret)
792 (setq cal (append (list (cons 'type ctype)
793 (cons 'encoding encoding)
794 (cons 'major-mode major-mode)
797 (if mime-viewer/decoding-mode
799 (cons 'mode mime-viewer/decoding-mode)
802 (setq ret (mime/get-content-decoding-alist cal))
803 (setq method (cdr (assoc 'method ret)))
804 (cond ((and (symbolp method)
806 (funcall method beg end ret)
808 ((and (listp method)(stringp (car method)))
809 (mime/start-external-method-region beg end ret)
811 (t (mime/show-output-buffer
812 "No method are specified for %s\n" ctype)
817 (defun mime/show-output-buffer (&rest forms)
818 (let ((the-buf (current-buffer)))
819 (if (null (get-buffer-window mime/output-buffer-name))
820 (split-window-vertically (/ (* (window-height) 3) 4))
822 (pop-to-buffer mime/output-buffer-name)
823 (goto-char (point-max))
825 (insert (apply (function format) forms))
827 (pop-to-buffer the-buf)
834 (defun mime-viewer/filter-text/plain (ctype params)
837 (let ((charset (cdr (assoc "charset" params)))
841 (goto-char (point-min))
842 (narrow-to-region (point-min)
843 (or (and (search-forward "\n\n" nil t)
846 (goto-char (point-min))
847 (mime/Content-Transfer-Encoding "7bit")
849 (beg (point-min)) (end (point-max))
851 (goto-char (point-min))
852 (if (search-forward "\n\n" nil t)
853 (setq beg (match-end 0))
855 (if (cond ((string= encoding "quoted-printable")
856 (mime/Quoted-Printable-decode-region beg end)
858 ((string= encoding "base64")
859 (mime/Base64-decode-region beg end)
861 (mime/code-convert-region-to-emacs beg (point-max) charset)
866 ;;; @ MIME viewer mode
869 (defvar mime/viewer-mode-map nil)
870 (if (null mime/viewer-mode-map)
872 (setq mime/viewer-mode-map (make-keymap))
873 (suppress-keymap mime/viewer-mode-map)
874 (define-key mime/viewer-mode-map
875 "u" (function mime-viewer/up-content))
876 (define-key mime/viewer-mode-map
877 "p" (function mime-viewer/previous-content))
878 (define-key mime/viewer-mode-map
879 "n" (function mime-viewer/next-content))
880 (define-key mime/viewer-mode-map
881 " " (function mime-viewer/scroll-up-content))
882 (define-key mime/viewer-mode-map
883 "\M- " (function mime-viewer/scroll-down-content))
884 (define-key mime/viewer-mode-map
885 "\177" (function mime-viewer/scroll-down-content))
886 (define-key mime/viewer-mode-map
887 "\C-m" (function mime-viewer/next-line-content))
888 (define-key mime/viewer-mode-map
889 "\C-\M-m" (function mime-viewer/previous-line-content))
890 (define-key mime/viewer-mode-map
891 "v" (function mime-viewer/play-content))
892 (define-key mime/viewer-mode-map
893 "e" (function mime-viewer/extract-content))
894 (define-key mime/viewer-mode-map
895 "\C-c\C-p" (function mime-viewer/print-content))
896 (define-key mime/viewer-mode-map
897 "q" (function mime-viewer/quit))
898 (define-key mime/viewer-mode-map
899 "\C-c\C-x" (function mime-viewer/kill-buffer))
902 (defun mime/viewer-mode (&optional mother ctl encoding)
903 "Major mode for viewing MIME message.
905 u Move to upper content
906 p Move to previous content
907 n Move to next content
911 RET Move to next line
912 M-RET Move to previous line
913 v Decode the content as `play mode'
914 e Decode the content as `extract mode'
915 C-c C-p Decode the content as `print mode'
919 (let ((buf (get-buffer mime/output-buffer-name))
920 (the-buf (current-buffer))
924 (switch-to-buffer buf)
926 (switch-to-buffer the-buf)
928 (let ((ret (mime-viewer/parse-message ctl encoding))
930 (switch-to-buffer (car ret))
931 (setq major-mode 'mime/viewer-mode)
932 (setq mode-name "MIME-View")
933 (make-variable-buffer-local 'mime::preview/original-major-mode)
934 (setq mime::preview/original-major-mode
937 (make-variable-buffer-local
938 'mime/show-mode-old-window-configuration)
939 (setq mime/show-mode-old-window-configuration
940 (current-window-configuration))
941 (make-variable-buffer-local 'mime/mother-buffer)
942 (setq mime/mother-buffer mother)
943 'mime/show-message-mode)
945 (use-local-map mime/viewer-mode-map)
946 (make-variable-buffer-local 'mime::preview/content-list)
947 (setq mime::preview/content-list (nth 1 ret))
949 (let ((ce (mime::preview-content-info/point-max
950 (car mime::preview/content-list)
953 (goto-char (point-min))
954 (search-forward "\n\n" nil t)
955 (setq e (match-end 0))
959 (run-hooks 'mime/viewer-mode-hook)
962 (defun mime::preview/decode-content ()
964 (let ((pc (mime::point-preview-content (point))))
966 (let ((the-buf (current-buffer)))
967 (switch-to-buffer (mime::preview-content-info/buffer pc))
968 (mime::article/decode-content-region
969 (mime::preview-content-info/content-info pc))
970 (if (eq (current-buffer)
971 (mime::preview-content-info/buffer pc))
972 (switch-to-buffer the-buf)
976 (defun mime-viewer/play-content ()
978 (let ((mime-viewer/decoding-mode "play"))
979 (mime::preview/decode-content)
982 (defun mime-viewer/extract-content ()
984 (let ((mime-viewer/decoding-mode "extract"))
985 (mime::preview/decode-content)
988 (defun mime-viewer/print-content ()
990 (let ((mime-viewer/decoding-mode "print"))
991 (mime::preview/decode-content)
994 (defun mime-viewer/up-content ()
996 (let ((pc (mime::point-preview-content (point))) cinfo
997 (the-buf (current-buffer))
999 (switch-to-buffer (mime::preview-content-info/buffer pc))
1000 (setq cinfo (mime::preview-content-info/content-info pc))
1001 (setq cn (mime::get-point-content-number
1002 (mime::content-info/point-min cinfo)))
1004 (mime-viewer/quit the-buf
1005 (mime::preview-content-info/buffer pc)
1007 (setq r (mime::article/get-content-region (butlast cn)))
1008 (switch-to-buffer the-buf)
1010 (let ((rpcl mime::preview/content-list) cell)
1012 (setq cell (car rpcl))
1013 (if (eq r (mime::preview-content-info/content-info cell))
1015 (goto-char (mime::preview-content-info/point-min cell))
1018 (setq rpcl (cdr rpcl))
1022 (defun mime-viewer/previous-content ()
1024 (let* ((pcl mime::preview/content-list)
1026 (i (- (length pcl) 1))
1030 (setq beg (mime::preview-content-info/point-min (nth i pcl)))
1032 (throw 'tag (goto-char beg))
1038 (defun mime-viewer/next-content ()
1040 (let ((pcl mime::preview/content-list)
1045 (setq beg (mime::preview-content-info/point-min (car pcl)))
1047 (throw 'tag (goto-char beg))
1049 (setq pcl (cdr pcl))
1053 (defun mime-viewer/scroll-up-content (&optional h)
1056 (setq h (- (window-height) 1))
1058 (let ((pcl mime::preview/content-list)
1064 (setq beg (mime::preview-content-info/point-min (car pcl)))
1068 (setq pcl (cdr pcl))
1076 (defun mime-viewer/scroll-down-content (&optional h)
1079 (setq h (- (window-height) 1))
1081 (let ((pcl mime::preview/content-list)
1085 (or (let ((i (- (length pcl) 1)))
1088 (setq beg (mime::preview-content-info/point-min
1096 (forward-line (- h))
1101 (defun mime-viewer/next-line-content ()
1103 (mime-viewer/scroll-up-content 1)
1106 (defun mime-viewer/previous-line-content ()
1108 (mime-viewer/scroll-down-content 1)
1111 (defun mime-viewer/quit (&optional the-buf buf)
1114 (setq the-buf (current-buffer))
1117 (setq buf (mime::preview-content-info/buffer
1118 (mime::point-preview-content (point))))
1121 (switch-to-buffer buf)
1122 (assoc major-mode mime-viewer/quitting-method-alist)
1126 (switch-to-buffer the-buf)
1131 (defun mime-viewer/kill-buffer ()
1133 (kill-buffer (current-buffer))
1136 (fset 'mime/view-mode 'mime/viewer-mode)
1138 (run-hooks 'tm-view-load-hook)