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 6.21 1995/05/16 12:07:52 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 (&optional port)
440 "Read field-body of Content-Type field from PORT and parse it.
441 PORT must be buffer or string. If PORT is omitted,
442 it is regarded as current-buffer. [tm-view]"
444 (setq port (current-buffer))
446 (let ((str (if (get-buffer port)
447 (save-window-excursion
448 (switch-to-buffer port)
449 (message/get-field-body "Content-Type")
454 (mime::parse-field-body/Content-Type
455 (message/unfolding-string str))
458 (defun mime/Content-Transfer-Encoding (&optional default-encoding)
459 (let ((str (message/get-field-body "Content-Transfer-Encoding")))
465 (defun mime/get-subject (param)
469 (or (and (setq ret (assoc "name" param))
470 (message/strip-quoted-string (cdr ret))
472 (and (setq ret (assoc "x-name" param))
473 (message/strip-quoted-string (cdr ret))
476 (narrow-to-region (point-min)
477 (or (and (search-forward "\n\n" nil t)
482 (message/get-field-body "Content-Description")
483 (message/get-field-body "Subject")
488 (defun mime/get-name (param)
489 (replace-as-filename (mime/get-subject param))
492 (defun mime-viewer/make-preview-buffer (&optional buf cinfo obuf)
493 (let ((the-buf (current-buffer)) pcl dest)
501 (switch-to-buffer buf)
502 (setq cinfo mime::article/content-info)
505 (setq obuf (concat "*Preview-" (buffer-name buf) "*"))
507 (setq pcl (mime::make-flat-content-list cinfo))
508 (if (get-buffer obuf)
515 (let ((beg (mime::content-info/point-min cell))
516 (end (mime::content-info/point-max cell))
517 (ctype (mime::content-info/type cell))
518 (params (mime::content-info/parameters cell))
519 cnum e nb ne subj str)
520 (setq cnum (mime::get-point-content-number beg cinfo))
521 (switch-to-buffer buf)
526 mime-viewer/default-showing-Content-Type-list))
530 (re-search-forward "^$" nil t)
534 (if (> e (point-max))
537 (setq str (buffer-substring beg e))
538 (switch-to-buffer obuf)
545 (narrow-to-region nb ne)
546 (mime/decode-message-header)
547 (setq subj (mime/get-subject params))
551 mime-viewer/content-filter-alist))))
552 (if (and f (fboundp f))
553 (funcall f ctype params)
555 (funcall mime-viewer/content-header-filter-function
558 (funcall mime-viewer/content-subject-function
559 cnum subj ctype params)
560 (setq ne (point-max))
561 (mime::make-preview-content-info nb (- ne 1)
567 (set-buffer-modified-p nil)
568 (setq buffer-read-only t)
569 (switch-to-buffer the-buf)
574 ;;; @ content information
577 (defun mime::get-point-content-number (p &optional cinfo)
579 (setq cinfo mime::article/content-info)
581 (let ((b (mime::content-info/point-min cinfo))
582 (e (mime::content-info/point-max cinfo))
583 (c (mime::content-info/children cinfo))
585 (if (and (<= b p)(<= p e))
586 (or (let (co ret (sn 0))
590 (setq ret (mime::get-point-content-number p co))
591 (cond ((eq ret t) (throw 'tag (list sn)))
592 (ret (throw 'tag (cons sn ret)))
599 (defun mime::article/get-content-region (cn &optional cinfo)
601 (setq cinfo mime::article/content-info)
608 (let ((rc (nth sn (mime::content-info/children cinfo))))
610 (mime::article/get-content-region (cdr cn) rc)
614 (defun mime::make-flat-content-list (&optional cinfo)
616 (setq cinfo mime::article/content-info)
618 (let ((dest (list cinfo))
619 (rcl (mime::content-info/children cinfo))
622 (setq dest (nconc dest (mime::make-flat-content-list (car rcl))))
627 (defun mime::point-preview-content (p &optional pcl)
629 (setq pcl mime::preview/content-list)
635 (if (and (<= (mime::preview-content-info/point-min cell) p)
636 (<= p (mime::preview-content-info/point-max cell))
649 (defun mime/Quoted-Printable-decode-region (beg end)
653 (narrow-to-region beg end)
654 (goto-char (point-min))
655 (while (re-search-forward "=\n" nil t)
658 (goto-char (point-min))
660 (while (re-search-forward mime/Quoted-Printable-octet-regexp nil t)
661 (setq b (match-beginning 0))
662 (setq e (match-end 0))
663 (setq str (buffer-substring b e))
665 (insert (mime/Quoted-Printable-decode-string str))
669 (defun mime/Base64-decode-region (beg end)
673 (narrow-to-region beg end)
674 (goto-char (point-min))
675 (while (search-forward "\n" nil t)
678 (let ((str (buffer-substring (point-min)(point-max))))
679 (delete-region (point-min)(point-max))
680 (insert (mime/base64-decode-string str))
683 (defun mime/make-method-args (cal format)
688 (let ((ret (cdr (assoc (eval arg) cal))))
696 (defun mime/start-external-method-region (beg end cal)
699 (narrow-to-region beg end)
701 (let ((method (cdr (assoc 'method cal)))
702 (name (mime/get-name cal))
705 (let ((file (make-temp-name
706 (expand-file-name "TM" mime/tmp-dir)))
711 (if (re-search-forward "^$" nil t)
717 (write-region b end file)
719 'name (replace-as-filename name) cal))
720 (setq cal (put-alist 'file file cal))
723 mime/output-buffer-name (car method)
725 (mime/make-method-args cal (cdr (cdr method)))
727 (apply (function start-process) args)
728 (mime/show-output-buffer)
732 (defun mime/decode-message/partial-region (beg end cal)
734 (let* ((root-dir (expand-file-name
735 (concat "m-prts-" (user-login-name)) mime/tmp-dir))
736 (id (cdr (assoc "id" cal)))
737 (number (cdr (assoc "number" cal)))
738 (total (cdr (assoc "total" cal)))
739 (the-buf (current-buffer))
741 (mother mime::article/preview-buffer))
742 (if (not (file-exists-p root-dir))
743 (make-directory root-dir)
745 (setq id (replace-as-filename id))
746 (setq root-dir (concat root-dir "/" id))
747 (if (not (file-exists-p root-dir))
748 (make-directory root-dir)
750 (setq file (concat root-dir "/FULL"))
751 (if (not (file-exists-p file))
753 (re-search-forward "^$")
754 (goto-char (+ (match-end 0) 1))
755 (setq file (concat root-dir "/" number))
756 (write-region (point) (point-max) file)
757 (if (get-buffer "*MIME-temp*")
758 (kill-buffer "*MIME-temp*")
760 (switch-to-buffer "*MIME-temp*")
762 (max (string-to-int total))
766 (setq file (concat root-dir "/" (int-to-string i)))
767 (if (not (file-exists-p file))
769 (switch-to-buffer the-buf)
772 (insert-file-contents file)
773 (goto-char (point-max))
776 (delete-other-windows)
777 (write-file (concat root-dir "/FULL"))
778 (setq major-mode 'mime/show-message-mode)
779 (mime/viewer-mode mother)
780 (pop-to-buffer (current-buffer))
784 (delete-other-windows)
786 (setq major-mode 'mime/show-message-mode)
787 (mime/viewer-mode mother)
788 (pop-to-buffer (current-buffer))
792 (defun mime/get-content-decoding-alist (al)
793 (get-unified-alist mime/content-decoding-condition al)
796 (defun mime::article/decode-content-region (cinfo)
797 (let ((beg (mime::content-info/point-min cinfo))
798 (end (mime::content-info/point-max cinfo))
799 (ctype (mime::content-info/type cinfo))
800 (params (mime::content-info/parameters cinfo))
801 (encoding (mime::content-info/encoding cinfo))
804 (let (method cal ret)
805 (setq cal (append (list (cons 'type ctype)
806 (cons 'encoding encoding)
807 (cons 'major-mode major-mode)
810 (if mime-viewer/decoding-mode
812 (cons 'mode mime-viewer/decoding-mode)
815 (setq ret (mime/get-content-decoding-alist cal))
816 (setq method (cdr (assoc 'method ret)))
817 (cond ((and (symbolp method)
819 (funcall method beg end ret)
821 ((and (listp method)(stringp (car method)))
822 (mime/start-external-method-region beg end ret)
824 (t (mime/show-output-buffer
825 "No method are specified for %s\n" ctype)
830 (defun mime/show-output-buffer (&rest forms)
831 (let ((the-buf (current-buffer)))
832 (if (null (get-buffer-window mime/output-buffer-name))
833 (split-window-vertically (/ (* (window-height) 3) 4))
835 (pop-to-buffer mime/output-buffer-name)
836 (goto-char (point-max))
838 (insert (apply (function format) forms))
840 (pop-to-buffer the-buf)
847 (defun mime-viewer/filter-text/plain (ctype params)
850 (let ((charset (cdr (assoc "charset" params)))
854 (goto-char (point-min))
855 (narrow-to-region (point-min)
856 (or (and (search-forward "\n\n" nil t)
859 (goto-char (point-min))
860 (mime/Content-Transfer-Encoding "7bit")
862 (beg (point-min)) (end (point-max))
864 (goto-char (point-min))
865 (if (search-forward "\n\n" nil t)
866 (setq beg (match-end 0))
868 (if (cond ((string= encoding "quoted-printable")
869 (mime/Quoted-Printable-decode-region beg end)
871 ((string= encoding "base64")
872 (mime/Base64-decode-region beg end)
874 (mime/code-convert-region-to-emacs beg (point-max) charset)
879 ;;; @ MIME viewer mode
882 (defvar mime/viewer-mode-map nil)
883 (if (null mime/viewer-mode-map)
885 (setq mime/viewer-mode-map (make-keymap))
886 (suppress-keymap mime/viewer-mode-map)
887 (define-key mime/viewer-mode-map
888 "u" (function mime-viewer/up-content))
889 (define-key mime/viewer-mode-map
890 "p" (function mime-viewer/previous-content))
891 (define-key mime/viewer-mode-map
892 "n" (function mime-viewer/next-content))
893 (define-key mime/viewer-mode-map
894 " " (function mime-viewer/scroll-up-content))
895 (define-key mime/viewer-mode-map
896 "\M- " (function mime-viewer/scroll-down-content))
897 (define-key mime/viewer-mode-map
898 "\177" (function mime-viewer/scroll-down-content))
899 (define-key mime/viewer-mode-map
900 "\C-m" (function mime-viewer/next-line-content))
901 (define-key mime/viewer-mode-map
902 "\C-\M-m" (function mime-viewer/previous-line-content))
903 (define-key mime/viewer-mode-map
904 "v" (function mime-viewer/play-content))
905 (define-key mime/viewer-mode-map
906 "e" (function mime-viewer/extract-content))
907 (define-key mime/viewer-mode-map
908 "\C-c\C-p" (function mime-viewer/print-content))
909 (define-key mime/viewer-mode-map
910 "q" (function mime-viewer/quit))
911 (define-key mime/viewer-mode-map
912 "\C-c\C-x" (function mime-viewer/kill-buffer))
915 (defun mime/viewer-mode (&optional mother ctl encoding)
916 "Major mode for viewing MIME message.
918 u Move to upper content
919 p Move to previous content
920 n Move to next content
924 RET Move to next line
925 M-RET Move to previous line
926 v Decode the content as `play mode'
927 e Decode the content as `extract mode'
928 C-c C-p Decode the content as `print mode'
932 (let ((buf (get-buffer mime/output-buffer-name))
933 (the-buf (current-buffer))
937 (switch-to-buffer buf)
939 (switch-to-buffer the-buf)
941 (let ((ret (mime-viewer/parse-message ctl encoding))
943 (switch-to-buffer (car ret))
944 (setq major-mode 'mime/viewer-mode)
945 (setq mode-name "MIME-View")
946 (make-variable-buffer-local 'mime::preview/original-major-mode)
947 (setq mime::preview/original-major-mode
950 (make-variable-buffer-local
951 'mime/show-mode-old-window-configuration)
952 (setq mime/show-mode-old-window-configuration
953 (current-window-configuration))
954 (make-variable-buffer-local 'mime/mother-buffer)
955 (setq mime/mother-buffer mother)
956 'mime/show-message-mode)
958 (use-local-map mime/viewer-mode-map)
959 (make-variable-buffer-local 'mime::preview/content-list)
960 (setq mime::preview/content-list (nth 1 ret))
962 (let ((ce (mime::preview-content-info/point-max
963 (car mime::preview/content-list)
966 (goto-char (point-min))
967 (search-forward "\n\n" nil t)
968 (setq e (match-end 0))
972 (run-hooks 'mime/viewer-mode-hook)
975 (defun mime::preview/decode-content ()
977 (let ((pc (mime::point-preview-content (point))))
979 (let ((the-buf (current-buffer)))
980 (switch-to-buffer (mime::preview-content-info/buffer pc))
981 (mime::article/decode-content-region
982 (mime::preview-content-info/content-info pc))
983 (if (eq (current-buffer)
984 (mime::preview-content-info/buffer pc))
985 (switch-to-buffer the-buf)
989 (defun mime-viewer/play-content ()
991 (let ((mime-viewer/decoding-mode "play"))
992 (mime::preview/decode-content)
995 (defun mime-viewer/extract-content ()
997 (let ((mime-viewer/decoding-mode "extract"))
998 (mime::preview/decode-content)
1001 (defun mime-viewer/print-content ()
1003 (let ((mime-viewer/decoding-mode "print"))
1004 (mime::preview/decode-content)
1007 (defun mime-viewer/up-content ()
1009 (let ((pc (mime::point-preview-content (point))) cinfo
1010 (the-buf (current-buffer))
1012 (switch-to-buffer (mime::preview-content-info/buffer pc))
1013 (setq cinfo (mime::preview-content-info/content-info pc))
1014 (setq cn (mime::get-point-content-number
1015 (mime::content-info/point-min cinfo)))
1017 (mime-viewer/quit the-buf
1018 (mime::preview-content-info/buffer pc)
1020 (setq r (mime::article/get-content-region (butlast cn)))
1021 (switch-to-buffer the-buf)
1023 (let ((rpcl mime::preview/content-list) cell)
1025 (setq cell (car rpcl))
1026 (if (eq r (mime::preview-content-info/content-info cell))
1028 (goto-char (mime::preview-content-info/point-min cell))
1031 (setq rpcl (cdr rpcl))
1035 (defun mime-viewer/previous-content ()
1037 (let* ((pcl mime::preview/content-list)
1039 (i (- (length pcl) 1))
1043 (setq beg (mime::preview-content-info/point-min (nth i pcl)))
1045 (throw 'tag (goto-char beg))
1051 (defun mime-viewer/next-content ()
1053 (let ((pcl mime::preview/content-list)
1058 (setq beg (mime::preview-content-info/point-min (car pcl)))
1060 (throw 'tag (goto-char beg))
1062 (setq pcl (cdr pcl))
1066 (defun mime-viewer/scroll-up-content (&optional h)
1069 (setq h (- (window-height) 1))
1071 (let ((pcl mime::preview/content-list)
1077 (setq beg (mime::preview-content-info/point-min (car pcl)))
1081 (setq pcl (cdr pcl))
1089 (defun mime-viewer/scroll-down-content (&optional h)
1092 (setq h (- (window-height) 1))
1094 (let ((pcl mime::preview/content-list)
1098 (or (let ((i (- (length pcl) 1)))
1101 (setq beg (mime::preview-content-info/point-min
1109 (forward-line (- h))
1114 (defun mime-viewer/next-line-content ()
1116 (mime-viewer/scroll-up-content 1)
1119 (defun mime-viewer/previous-line-content ()
1121 (mime-viewer/scroll-down-content 1)
1124 (defun mime-viewer/quit (&optional the-buf buf)
1127 (setq the-buf (current-buffer))
1130 (setq buf (mime::preview-content-info/buffer
1131 (mime::point-preview-content (point))))
1134 (switch-to-buffer buf)
1135 (assoc major-mode mime-viewer/quitting-method-alist)
1139 (switch-to-buffer the-buf)
1144 (defun mime-viewer/kill-buffer ()
1146 (kill-buffer (current-buffer))
1149 (fset 'mime/view-mode 'mime/viewer-mode)
1151 (run-hooks 'tm-view-load-hook)