2 ;;; A MIME viewer for GNU Emacs
4 ;;; by Morioka Tomohiko, 1994/07/13
24 (defconst mime-viewer/RCS-ID
25 "$Id: tm-view.el,v 6.50 1995/06/12 01:51:49 morioka Exp $")
27 (defconst mime-viewer/version (get-version-string mime-viewer/RCS-ID))
28 (defconst mime/viewer-version mime-viewer/version)
34 (defconst mime/tspecials "\000-\040()<>@,;:\\\"/[\093?.=")
35 (defconst mime/token-regexp
36 (concat "[^" mime/tspecials "]*"))
37 (defconst mime/content-type-subtype-regexp
38 (concat mime/token-regexp "/" mime/token-regexp))
39 (defconst mime/content-parameter-value-regexp
41 message/quoted-string-regexp
44 (defconst mime/output-buffer-name "*MIME-out*")
45 (defconst mime/decoding-buffer-name "*MIME-decoding*")
51 (defvar 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/childrens-header-showing-Content-Type-list
89 (defvar mime-viewer/default-showing-Content-Type-list
90 '("text/plain" "text/richtext" "text/enriched"
91 "text/x-latex" "application/x-latex"
92 "application/octet-stream" nil
93 "application/x-selection" "application/x-comment"))
95 (defvar mime-viewer/content-filter-alist
96 '(("text/plain" . mime-viewer/filter-text/plain)
97 (nil . mime-viewer/filter-text/plain)))
99 (defun mime-viewer/header-visible-p (cnum cinfo &optional ctype)
103 (mime::content-info/type
104 (mime-article/cnum-to-cinfo (butlast cnum) cinfo)
106 (member ctype mime-viewer/childrens-header-showing-Content-Type-list)
109 (defun mime-viewer/body-visible-p (cnum cinfo &optional ctype)
112 (mime::content-info/type
113 (mime-article/cnum-to-cinfo cnum cinfo)))
115 (member ctype mime-viewer/default-showing-Content-Type-list)
118 (defun mime-viewer/default-content-filter (cnum cinfo ctype params subj)
121 (defun mime-viewer/default-content-separator (cnum cinfo ctype params subj)
122 (if (and (not (mime-viewer/header-visible-p cnum cinfo ctype))
123 (not (mime-viewer/body-visible-p cnum cinfo ctype))
126 (goto-char (point-max))
130 (defvar mime-viewer/content-subject-omitting-Content-Type-list
131 '("application/x-selection"))
133 (defun mime-viewer/default-content-subject-function
134 (cnum cinfo ctype params subj)
137 mime-viewer/content-subject-omitting-Content-Type-list))
139 (format "[%s %s (%s)]\n"
140 (or (assoc-value "x-part-number" params)
144 (format "%s" (+ num 1))
151 (defvar mime-viewer/content-subject-function
152 (function mime-viewer/default-content-subject-function))
154 (defvar mime-viewer/ignored-field-list
155 '("Received" "Return-Path" "Replied" "Errors-To"
156 "Lines" "Sender" "Path" "Nntp-Posting-Host"
159 (defvar mime-viewer/ignored-field-regexp)
161 (defun mime-viewer/default-content-header-filter ()
162 (goto-char (point-min))
163 (while (and (re-search-forward
164 (concat "^" mime-viewer/ignored-field-regexp ":")
171 (re-search-forward "^\\([^ \t]\\|$\\)" nil t)
175 (mime/decode-message-header)
178 (defvar mime-viewer/content-header-filter-alist nil)
180 (defvar mime-viewer/decoding-mode "play" "MIME body decoding mode")
183 (defvar mime-viewer/file-name-char-regexp "[A-Za-z0-9+_-]")
185 (defvar mime-viewer/file-name-regexp-1
186 (concat mime-viewer/file-name-char-regexp "+\\."
187 mime-viewer/file-name-char-regexp "+"))
189 (defvar mime-viewer/file-name-regexp-2
190 (concat (regexp-* mime-viewer/file-name-char-regexp)
191 "\\(\\." mime-viewer/file-name-char-regexp "+\\)*"))
194 ;;; @@ buffer local variables
197 (defvar mime::article/content-info nil)
198 (defvar mime::article/preview-buffer nil)
200 (defvar mime::preview/article-buffer nil)
201 (defvar mime::preview/content-list nil)
202 (defvar mime::preview/original-major-mode nil)
208 (defun mime::viewer/quitting-method-for-gnus4 ()
209 (mime-viewer/kill-buffer)
210 (delete-other-windows)
211 (gnus-article-show-summary)
212 (if (null gnus-have-all-headers)
213 (gnus-summary-select-article nil t)
216 (defun mime::viewer/quitting-method-for-rmail ()
217 (mime-viewer/kill-buffer)
219 (delete-other-windows)
222 (defvar mime-viewer/quitting-method-alist
223 '((gnus-article-mode . mime::viewer/quitting-method-for-gnus4)
224 (rmail-mode . mime::viewer/quitting-method-for-rmail)
225 (mime/show-message-mode
227 (set-window-configuration
228 mime/show-mode-old-window-configuration)
229 (let ((mother mime/mother-buffer))
231 (mime::preview-content-info/buffer
232 (car mime::preview/content-list)))
233 (mime-viewer/kill-buffer)
234 (pop-to-buffer mother)
235 (goto-char (point-min))
236 (mime-viewer/up-content)
241 ;;; @ data structures
246 (define-structure mime::content-info
247 point-min point-max type parameters encoding children)
249 ;;; @@ preview-content-info
251 (define-structure mime::preview-content-info
252 point-min point-max buffer content-info)
258 (defun mime-viewer/parse-message (&optional ctl encoding)
259 (make-variable-buffer-local 'mime::article/content-info)
260 (setq mime::article/content-info (mime-viewer/parse ctl encoding))
261 (let ((ret (mime-viewer/make-preview-buffer)))
262 (make-variable-buffer-local 'mime::article/preview-buffer)
263 (setq mime::article/preview-buffer (car ret))
266 (defun mime-viewer/parse (&optional ctl encoding)
269 (setq ctl (or (mime/Content-Type)
271 (setq encoding (or (mime/Content-Transfer-Encoding)
273 (let ((ctype (car ctl))
276 (let ((boundary (assoc "boundary" params)))
277 (goto-char (point-min))
278 (search-forward "\n\n" nil t)
283 (message/strip-quoted-string (cdr boundary)))
286 (if (re-search-forward
287 (concat "^--" (regexp-quote boundary) "--$") nil t)
291 (mime-viewer/parse-multipart
294 boundary ctype params encoding)
296 ((string= ctype "message/rfc822")
297 (mime::content-info/create
298 (point-min) (point-max)
299 ctype params encoding
302 (narrow-to-region (progn
303 (goto-char (point-min))
304 (if (re-search-forward "^$" nil t)
309 (list (mime-viewer/parse))
314 (mime::content-info/create (point-min) (point-max)
315 ctype params encoding nil)
319 (defun mime-viewer/parse-multipart (beg end boundary ctype params encoding)
320 (let ((sep (concat "^--" (regexp-quote boundary) "$"))
321 cb ce ct ret ncb children)
324 (narrow-to-region beg end)
325 (goto-char (point-min))
326 (search-forward (concat "--" boundary "\n") nil t)
327 (setq cb (match-end 0))
328 (while (re-search-forward sep nil t)
329 (setq ce (match-beginning 0))
330 (setq ncb (match-end 0))
333 (narrow-to-region cb ce)
334 (setq ret (apply (function mime-viewer/parse)
335 (cond ((string= ctype "multipart/digest")
336 '(("message/rfc822") "7bit")
338 (t '(("text/plain") "7bit"))
342 (setq children (nconc children (list ret)))
343 (goto-char (mime::content-info/point-max ret))
344 (search-forward (concat "--" boundary "\n") nil t)
345 (goto-char (setq cb (match-end 0)))
347 (setq ce (point-max))
350 (narrow-to-region cb ce)
351 (setq ret (apply (function mime-viewer/parse)
352 (cond ((string= ctype "multipart/mixed")
353 '(("text/plain") "7bit")
355 ((string= ctype "multipart/digest")
356 '(("message/rfc822") "7bit")
360 (setq children (nconc children (list ret)))
362 (setq beg (point-min))
364 (mime::content-info/create beg end ctype params encoding children)
367 (defun mime::parse-parameter (str)
368 (let ((ret (message::parse "\;" str)))
371 (message::parse mime/token-regexp
372 (message::parsed/rest ret)))
373 (let ((parameter (downcase (message::parsed/matched ret))))
374 (if (setq ret (message::parse "=" (message::parsed/rest ret)))
377 mime/content-parameter-value-regexp
378 (message::parsed/rest ret)))
379 (message::make-parsed
381 (message/strip-quoted-string
382 (message::parsed/matched ret))
384 (message::parsed/rest ret)
388 (defun mime::parse-field-body/Content-Type (str)
389 (let ((ret (message::parse mime/content-type-subtype-regexp str)))
391 (let ((ctype (downcase (message::parsed/matched ret)))
394 (setq str (message::parsed/rest ret))
395 (setq ret (mime::parse-parameter str))
397 (setq dest (cons (message::parsed/matched ret) dest))
399 (if (string-match "^[ \t]*$" str)
400 (cons ctype (reverse dest))
403 (defun mime/Content-Type (&optional port)
404 "Read field-body of Content-Type field from PORT and parse it.
405 PORT must be buffer or string. If PORT is omitted,
406 it is regarded as current-buffer. [tm-view]"
408 (setq port (current-buffer))
410 (let ((str (if (get-buffer port)
411 (save-window-excursion
412 (switch-to-buffer port)
413 (message/get-field-body "Content-Type")
418 (mime::parse-field-body/Content-Type
419 (message/unfolding-string str))
422 (defun mime/Content-Transfer-Encoding (&optional default-encoding)
423 (let ((str (message/get-field-body "Content-Transfer-Encoding")))
429 (defun mime-viewer/get-subject (param)
433 (or (and (setq ret (assoc "name" param))
434 (message/strip-quoted-string (cdr ret))
436 (and (setq ret (assoc "x-name" param))
437 (message/strip-quoted-string (cdr ret))
440 (narrow-to-region (point-min)
441 (or (and (search-forward "\n\n" nil t)
446 (message/get-field-body "Content-Description")
447 (message/get-field-body "Subject")
452 (defun mime-viewer/get-name (param)
453 (let ((str (mime-viewer/get-subject param)))
454 (if (string-match " " str)
455 (if (or (string-match mime-viewer/file-name-regexp-1 str)
456 (string-match mime-viewer/file-name-regexp-2 str))
457 (substring str (match-beginning 0)(match-end 0))
459 (replace-as-filename str)
462 (defun mime-viewer/make-preview-buffer (&optional buf cinfo obuf)
463 (let ((the-buf (current-buffer))
471 (switch-to-buffer buf)
474 (setq cinfo mime::article/content-info)
477 (setq obuf (concat "*Preview-" (buffer-name buf) "*"))
479 (setq pcl (mime::make-flat-content-list cinfo))
480 (save-window-excursion
481 (let ((bf (get-buffer obuf)))
482 (switch-to-buffer obuf)
483 (setq buffer-read-only nil)
487 (make-variable-buffer-local 'mime::preview/article-buffer)
488 (setq mime::preview/article-buffer the-buf)
489 (make-variable-buffer-local 'mime::preview/original-major-mode)
490 (setq mime::preview/original-major-mode mode)
491 (setq major-mode 'mime/viewer-mode)
492 (setq mode-name "MIME-View")
498 (let ((beg (mime::content-info/point-min cell))
499 (end (mime::content-info/point-max cell))
500 (ctype (mime::content-info/type cell))
501 (params (mime::content-info/parameters cell))
502 he cnum e nb ne subj str)
503 (setq cnum (mime::get-point-content-number beg cinfo))
504 (setq he (save-excursion
506 (re-search-forward "^$" nil t)
509 (save-window-excursion
510 (switch-to-buffer obuf)
512 (narrow-to-region nb nb)
514 (if (mime-viewer/header-visible-p cnum cinfo ctype)
516 (setq str (buffer-substring beg he))
517 (save-window-excursion
518 (switch-to-buffer obuf)
522 mime-viewer/content-header-filter-alist))
524 (if (and f (setq f (cdr f)))
526 (mime-viewer/default-content-header-filter)
529 (if (mime-viewer/body-visible-p cnum cinfo ctype)
531 (setq str (buffer-substring he end))
532 (save-window-excursion
533 (switch-to-buffer obuf)
535 (setq be (point-max))
536 (narrow-to-region be be)
538 (setq ne (point-max))
539 (let ((f (or (assoc-value
541 mime-viewer/content-filter-alist)
543 (if (and f (fboundp f))
544 (funcall f ctype params encoding)
545 (mime-viewer/default-content-filter
546 cnum cinfo ctype params subj)
548 (setq ne (point-max))
550 (save-window-excursion
551 (switch-to-buffer obuf)
552 (mime-viewer/default-content-separator
553 cnum cinfo ctype params subj)
555 (save-window-excursion
556 (switch-to-buffer obuf)
559 (setq subj (mime-viewer/get-subject params))
561 (funcall mime-viewer/content-subject-function
562 cnum cinfo ctype params subj)
563 (setq ne (point-max))
565 (mime::preview-content-info/create nb (- ne 1)
571 (switch-to-buffer obuf)
572 (set-buffer-modified-p nil)
573 (setq buffer-read-only t)
574 (switch-to-buffer the-buf)
579 ;;; @ content information
582 (defun mime::get-point-content-number (p &optional cinfo)
584 (setq cinfo mime::article/content-info)
586 (let ((b (mime::content-info/point-min cinfo))
587 (e (mime::content-info/point-max cinfo))
588 (c (mime::content-info/children cinfo))
590 (if (and (<= b p)(<= p e))
591 (or (let (co ret (sn 0))
595 (setq ret (mime::get-point-content-number p co))
596 (cond ((eq ret t) (throw 'tag (list sn)))
597 (ret (throw 'tag (cons sn ret)))
604 (defun mime-article/cnum-to-cinfo (cn &optional cinfo)
606 (setq cinfo mime::article/content-info)
613 (let ((rc (nth sn (mime::content-info/children cinfo))))
615 (mime-article/cnum-to-cinfo (cdr cn) rc)
619 (defun mime::make-flat-content-list (&optional cinfo)
621 (setq cinfo mime::article/content-info)
623 (let ((dest (list cinfo))
624 (rcl (mime::content-info/children cinfo))
627 (setq dest (nconc dest (mime::make-flat-content-list (car rcl))))
632 (defun mime::point-preview-content (p &optional pcl)
634 (setq pcl mime::preview/content-list)
640 (if (and (<= (mime::preview-content-info/point-min cell) p)
641 (<= p (mime::preview-content-info/point-max cell))
654 (defun mime/Quoted-Printable-decode-region (beg end)
658 (narrow-to-region beg end)
659 (goto-char (point-min))
660 (while (re-search-forward "=\n" nil t)
663 (goto-char (point-min))
665 (while (re-search-forward mime/Quoted-Printable-octet-regexp nil t)
666 (setq b (match-beginning 0))
667 (setq e (match-end 0))
668 (setq str (buffer-substring b e))
670 (insert (mime/Quoted-Printable-decode-string str))
674 (defun mime/Base64-decode-region (beg end)
678 (narrow-to-region beg end)
679 (goto-char (point-min))
680 (while (search-forward "\n" nil t)
683 (let ((str (buffer-substring (point-min)(point-max))))
684 (delete-region (point-min)(point-max))
685 (insert (mime/base64-decode-string str))
688 (defun mime/make-method-args (cal format)
693 (let ((ret (cdr (assoc (eval arg) cal))))
701 (defun mime/start-external-method-region (beg end cal)
704 (narrow-to-region beg end)
706 (let ((method (cdr (assoc 'method cal)))
707 (name (mime-viewer/get-name cal))
710 (let ((file (make-temp-name
711 (expand-file-name "TM" mime/tmp-dir)))
716 (if (re-search-forward "^$" nil t)
722 (write-region b end file)
724 'name (replace-as-filename name) cal))
725 (setq cal (put-alist 'file file cal))
728 mime/output-buffer-name (car method)
730 (mime/make-method-args cal (cdr (cdr method)))
732 (apply (function start-process) args)
733 (mime/show-output-buffer)
737 (defun mime/decode-message/partial-region (beg end cal)
739 (let* ((root-dir (expand-file-name
740 (concat "m-prts-" (user-login-name)) mime/tmp-dir))
741 (id (cdr (assoc "id" cal)))
742 (number (cdr (assoc "number" cal)))
743 (total (cdr (assoc "total" cal)))
744 (the-buf (current-buffer))
746 (mother mime::article/preview-buffer))
747 (if (not (file-exists-p root-dir))
748 (make-directory root-dir)
750 (setq id (replace-as-filename id))
751 (setq root-dir (concat root-dir "/" id))
752 (if (not (file-exists-p root-dir))
753 (make-directory root-dir)
755 (setq file (concat root-dir "/FULL"))
756 (if (not (file-exists-p file))
758 (re-search-forward "^$")
759 (goto-char (+ (match-end 0) 1))
760 (setq file (concat root-dir "/" number))
761 (write-region (point) (point-max) file)
762 (if (get-buffer "*MIME-temp*")
763 (kill-buffer "*MIME-temp*")
765 (switch-to-buffer "*MIME-temp*")
767 (max (string-to-int total))
771 (setq file (concat root-dir "/" (int-to-string i)))
772 (if (not (file-exists-p file))
774 (switch-to-buffer the-buf)
777 (insert-file-contents file)
778 (goto-char (point-max))
781 (delete-other-windows)
782 (write-file (concat root-dir "/FULL"))
783 (setq major-mode 'mime/show-message-mode)
784 (mime/viewer-mode mother)
785 (pop-to-buffer (current-buffer))
789 (delete-other-windows)
791 (setq major-mode 'mime/show-message-mode)
792 (mime/viewer-mode mother)
793 (pop-to-buffer (current-buffer))
797 (defun mime/get-content-decoding-alist (al)
798 (get-unified-alist mime/content-decoding-condition al)
801 (defun mime::article/decode-content-region (cinfo)
802 (let ((beg (mime::content-info/point-min cinfo))
803 (end (mime::content-info/point-max cinfo))
804 (ctype (mime::content-info/type cinfo))
805 (params (mime::content-info/parameters cinfo))
806 (encoding (mime::content-info/encoding cinfo))
809 (let (method cal ret)
810 (setq cal (append (list (cons 'type ctype)
811 (cons 'encoding encoding)
812 (cons 'major-mode major-mode)
815 (if mime-viewer/decoding-mode
817 (cons 'mode mime-viewer/decoding-mode)
820 (setq ret (mime/get-content-decoding-alist cal))
821 (setq method (cdr (assoc 'method ret)))
822 (cond ((and (symbolp method)
824 (funcall method beg end ret)
826 ((and (listp method)(stringp (car method)))
827 (mime/start-external-method-region beg end ret)
829 (t (mime/show-output-buffer
830 "No method are specified for %s\n" ctype)
835 (defun mime/show-output-buffer (&rest forms)
836 (let ((the-buf (current-buffer)))
837 (if (null (get-buffer-window mime/output-buffer-name))
838 (split-window-vertically (/ (* (window-height) 3) 4))
840 (pop-to-buffer mime/output-buffer-name)
841 (goto-char (point-max))
843 (insert (apply (function format) forms))
845 (pop-to-buffer the-buf)
852 (defvar mime-viewer/code-converter-alist
853 '((mh-show-mode . mime/code-convert-region-to-emacs))
856 (defun mime-viewer/default-code-convert-region
857 (beg end charset &optional encoding)
858 (if (member charset '("quoted-printable" "base64"))
859 (mime/code-convert-region-to-emacs beg (point-max) charset)
862 (defun mime-viewer/filter-text/plain (ctype params encoding)
863 (let ((charset (cdr (assoc "charset" params)))
864 (beg (point-min)) (end (point-max))
866 (goto-char (point-min))
867 (cond ((string= encoding "quoted-printable")
868 (mime/Quoted-Printable-decode-region beg end)
870 ((string= encoding "base64")
871 (mime/Base64-decode-region beg end)
873 (let* ((mode mime::preview/original-major-mode)
874 (m (assq mode mime-viewer/code-converter-alist))
876 (if (and m (fboundp (setq m (cdr m))))
877 (funcall m beg (point-max) charset encoding)
878 (mime-viewer/default-code-convert-region beg (point-max)
881 (run-hooks 'mime-viewer/plain-text-preview-hook)
885 ;;; @ MIME viewer mode
888 (defvar mime/viewer-mode-map nil)
889 (if (null mime/viewer-mode-map)
891 (setq mime/viewer-mode-map (make-keymap))
892 (suppress-keymap mime/viewer-mode-map)
893 (define-key mime/viewer-mode-map
894 "u" (function mime-viewer/up-content))
895 (define-key mime/viewer-mode-map
896 "p" (function mime-viewer/previous-content))
897 (define-key mime/viewer-mode-map
898 "n" (function mime-viewer/next-content))
899 (define-key mime/viewer-mode-map
900 " " (function mime-viewer/scroll-up-content))
901 (define-key mime/viewer-mode-map
902 "\M- " (function mime-viewer/scroll-down-content))
903 (define-key mime/viewer-mode-map
904 "\177" (function mime-viewer/scroll-down-content))
905 (define-key mime/viewer-mode-map
906 "\C-m" (function mime-viewer/next-line-content))
907 (define-key mime/viewer-mode-map
908 "\C-\M-m" (function mime-viewer/previous-line-content))
909 (define-key mime/viewer-mode-map
910 "v" (function mime-viewer/play-content))
911 (define-key mime/viewer-mode-map
912 "e" (function mime-viewer/extract-content))
913 (define-key mime/viewer-mode-map
914 "\C-c\C-p" (function mime-viewer/print-content))
915 (define-key mime/viewer-mode-map
916 "q" (function mime-viewer/quit))
917 (define-key mime/viewer-mode-map
918 "\C-c\C-x" (function mime-viewer/kill-buffer))
921 (defun mime/viewer-mode (&optional mother ctl encoding)
922 "Major mode for viewing MIME message.
924 u Move to upper content
925 p Move to previous content
926 n Move to next content
930 RET Move to next line
931 M-RET Move to previous line
932 v Decode the content as `play mode'
933 e Decode the content as `extract mode'
934 C-c C-p Decode the content as `print mode'
938 (setq mime-viewer/ignored-field-regexp
940 (mapconcat (function regexp-quote)
941 mime-viewer/ignored-field-list "\\|")
943 (let ((buf (get-buffer mime/output-buffer-name))
944 (the-buf (current-buffer))
948 (switch-to-buffer buf)
950 (switch-to-buffer the-buf)
952 (let ((ret (mime-viewer/parse-message ctl encoding)))
954 (switch-to-buffer (car ret))
957 (make-variable-buffer-local
958 'mime/show-mode-old-window-configuration)
959 (setq mime/show-mode-old-window-configuration
960 (current-window-configuration))
961 (make-variable-buffer-local 'mime/mother-buffer)
962 (setq mime/mother-buffer mother)
964 (use-local-map mime/viewer-mode-map)
965 (make-variable-buffer-local 'mime::preview/content-list)
966 (setq mime::preview/content-list (nth 1 ret))
968 (let ((ce (mime::preview-content-info/point-max
969 (car mime::preview/content-list)
972 (goto-char (point-min))
973 (search-forward "\n\n" nil t)
974 (setq e (match-end 0))
978 (run-hooks 'mime/viewer-mode-hook)
981 (defun mime-preview/point-content-number (point)
982 (save-window-excursion
983 (let ((pc (mime::point-preview-content (point)))
985 (switch-to-buffer (mime::preview-content-info/buffer pc))
986 (setq cinfo (mime::preview-content-info/content-info pc))
987 (mime::get-point-content-number (mime::content-info/point-min cinfo))
990 (defun mime-preview/cinfo-to-pcinfo (cinfo)
991 (let ((rpcl mime::preview/content-list) cell)
994 (setq cell (car rpcl))
995 (if (eq cinfo (mime::preview-content-info/content-info cell))
998 (setq rpcl (cdr rpcl))
1001 (defvar mime-preview/after-decoded-position nil)
1003 (defun mime-preview/decode-content ()
1005 (let ((pc (mime::point-preview-content (point))))
1007 (let ((the-buf (current-buffer)))
1008 (setq mime-preview/after-decoded-position (point))
1009 (switch-to-buffer (mime::preview-content-info/buffer pc))
1010 (mime::article/decode-content-region
1011 (mime::preview-content-info/content-info pc))
1012 (if (eq (current-buffer)
1013 (mime::preview-content-info/buffer pc))
1015 (switch-to-buffer the-buf)
1016 (goto-char mime-preview/after-decoded-position)
1020 (defun mime-viewer/play-content ()
1022 (let ((mime-viewer/decoding-mode "play"))
1023 (mime-preview/decode-content)
1026 (defun mime-viewer/extract-content ()
1028 (let ((mime-viewer/decoding-mode "extract"))
1029 (mime-preview/decode-content)
1032 (defun mime-viewer/print-content ()
1034 (let ((mime-viewer/decoding-mode "print"))
1035 (mime-preview/decode-content)
1038 (defun mime-viewer/up-content ()
1040 (let ((pc (mime::point-preview-content (point))) cinfo
1041 (the-buf (current-buffer))
1043 (switch-to-buffer (mime::preview-content-info/buffer pc))
1044 (setq cinfo (mime::preview-content-info/content-info pc))
1045 (setq cn (mime::get-point-content-number
1046 (mime::content-info/point-min cinfo)))
1048 (mime-viewer/quit the-buf
1049 (mime::preview-content-info/buffer pc)
1051 (setq r (mime-article/cnum-to-cinfo (butlast cn)))
1052 (switch-to-buffer the-buf)
1054 (let ((rpcl mime::preview/content-list) cell)
1056 (setq cell (car rpcl))
1057 (if (eq r (mime::preview-content-info/content-info cell))
1059 (goto-char (mime::preview-content-info/point-min cell))
1062 (setq rpcl (cdr rpcl))
1066 (defun mime-viewer/previous-content ()
1068 (let* ((pcl mime::preview/content-list)
1070 (i (- (length pcl) 1))
1074 (setq beg (mime::preview-content-info/point-min (nth i pcl)))
1076 (throw 'tag (goto-char beg))
1082 (defun mime-viewer/next-content ()
1084 (let ((pcl mime::preview/content-list)
1089 (setq beg (mime::preview-content-info/point-min (car pcl)))
1091 (throw 'tag (goto-char beg))
1093 (setq pcl (cdr pcl))
1097 (defun mime-viewer/scroll-up-content (&optional h)
1100 (setq h (- (window-height) 1))
1102 (let ((pcl mime::preview/content-list)
1108 (setq beg (mime::preview-content-info/point-min (car pcl)))
1112 (setq pcl (cdr pcl))
1120 (defun mime-viewer/scroll-down-content (&optional h)
1123 (setq h (- (window-height) 1))
1125 (let ((pcl mime::preview/content-list)
1129 (or (let ((i (- (length pcl) 1)))
1132 (setq beg (mime::preview-content-info/point-min
1140 (forward-line (- h))
1145 (defun mime-viewer/next-line-content ()
1147 (mime-viewer/scroll-up-content 1)
1150 (defun mime-viewer/previous-line-content ()
1152 (mime-viewer/scroll-down-content 1)
1155 (defun mime-viewer/quit (&optional the-buf buf)
1158 (setq the-buf (current-buffer))
1161 (setq buf (mime::preview-content-info/buffer
1162 (mime::point-preview-content (point))))
1165 (switch-to-buffer buf)
1166 (assoc major-mode mime-viewer/quitting-method-alist)
1170 (switch-to-buffer the-buf)
1175 (defun mime-viewer/kill-buffer ()
1177 (kill-buffer (current-buffer))
1180 (run-hooks 'tm-view-load-hook)