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 6.58 1995/06/22 04:11:58 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-subject-omitting-Content-Type-list
96 '("application/x-selection"))
98 (defvar mime-viewer/uuencode-encoding-name-list '("x-uue" "x-uuencode"))
100 (defvar mime-viewer/ignored-field-list
101 '("Received" "Return-Path" "Replied" "Errors-To"
102 "Lines" "Sender" "Path" "Nntp-Posting-Host"
103 "Content-Type" "Precedence"))
105 (defvar mime-viewer/ignored-field-regexp)
107 (defvar mime-viewer/decoding-mode "play" "MIME body decoding mode")
109 (defvar mime-viewer/file-name-char-regexp "[A-Za-z0-9+_-]")
111 (defvar mime-viewer/file-name-regexp-1
112 (concat mime-viewer/file-name-char-regexp "+\\."
113 mime-viewer/file-name-char-regexp "+"))
115 (defvar mime-viewer/file-name-regexp-2
116 (concat (regexp-* mime-viewer/file-name-char-regexp)
117 "\\(\\." mime-viewer/file-name-char-regexp "+\\)*"))
120 ;;; @@ predicate functions
123 (defun mime-viewer/header-visible-p (cnum cinfo &optional ctype)
127 (mime::content-info/type
128 (mime-article/cnum-to-cinfo (butlast cnum) cinfo)
130 (member ctype mime-viewer/childrens-header-showing-Content-Type-list)
133 (defun mime-viewer/body-visible-p (cnum cinfo &optional ctype)
137 (mime::content-info/type
138 (setq ccinfo (mime-article/cnum-to-cinfo cnum cinfo))
141 (and (member ctype mime-viewer/default-showing-Content-Type-list)
142 (if (string-equal ctype "application/octet-stream")
145 (setq ccinfo (mime-article/cnum-to-cinfo cnum cinfo))
147 (member (mime::content-info/encoding ccinfo)
148 '(nil "7bit" "8bit"))
154 ;;; @@ content subject
157 (defun mime-viewer/default-content-subject-function
158 (cnum cinfo ctype params subj)
161 mime-viewer/content-subject-omitting-Content-Type-list))
163 (let ((access-type (assoc "access-type" params))
164 (num (or (assoc-value "x-part-number" params)
168 (format "%s" (+ num 1))
174 (let ((server (assoc "server" params)))
175 (setq access-type (cdr access-type))
177 (format "[%s %s ([%s] %s)]\n" num subj
178 access-type (cdr server))
179 (let ((site (assoc-value "site" params))
180 (dir (assoc-value "directory" params))
182 (format "[%s %s ([%s] %s:%s)]\n" num subj
183 access-type site dir)
185 (format "[%s %s (%s)]\n" num subj ctype)
188 (defvar mime-viewer/content-subject-function
189 (function mime-viewer/default-content-subject-function))
192 ;;; @ content header filter
195 (defun mime-viewer/default-content-header-filter ()
196 (goto-char (point-min))
197 (while (and (re-search-forward
198 (concat "^" mime-viewer/ignored-field-regexp ":")
205 (re-search-forward "^\\([^ \t]\\|$\\)" nil t)
209 (mime/decode-message-header)
212 (defvar mime-viewer/content-header-filter-alist nil)
215 ;;; @@ content filter
218 (defvar mime-viewer/content-filter-alist
219 '(("text/plain" . mime-viewer/filter-text/plain)
220 (nil . mime-viewer/filter-text/plain)))
222 (defun mime-viewer/default-content-filter (cnum cinfo ctype params subj)
226 ;;; @@ content separator
229 (defun mime-viewer/default-content-separator (cnum cinfo ctype params subj)
230 (if (and (not (mime-viewer/header-visible-p cnum cinfo ctype))
231 (not (mime-viewer/body-visible-p cnum cinfo ctype))
234 (goto-char (point-max))
239 ;;; @@ buffer local variables
242 (defvar mime::article/content-info nil)
243 (defvar mime::article/preview-buffer nil)
245 (defvar mime::preview/article-buffer nil)
246 (defvar mime::preview/content-list nil)
247 (defvar mime::preview/original-major-mode nil)
253 (defun mime::viewer/quitting-method-for-gnus4 ()
254 (mime-viewer/kill-buffer)
255 (delete-other-windows)
256 (gnus-article-show-summary)
257 (if (null gnus-have-all-headers)
258 (gnus-summary-select-article nil t)
261 (defun mime::viewer/quitting-method-for-rmail ()
262 (mime-viewer/kill-buffer)
264 (delete-other-windows)
267 (defvar mime-viewer/quitting-method-alist
268 '((gnus-article-mode . mime::viewer/quitting-method-for-gnus4)
269 (rmail-mode . mime::viewer/quitting-method-for-rmail)
270 (mime/show-message-mode
272 (set-window-configuration
273 mime/show-mode-old-window-configuration)
274 (let ((mother mime/mother-buffer))
276 (mime::preview-content-info/buffer
277 (car mime::preview/content-list)))
278 (mime-viewer/kill-buffer)
279 (pop-to-buffer mother)
280 (goto-char (point-min))
281 (mime-viewer/up-content)
286 ;;; @ data structures
291 (define-structure mime::content-info
292 point-min point-max type parameters encoding children)
294 ;;; @@ preview-content-info
296 (define-structure mime::preview-content-info
297 point-min point-max buffer content-info)
303 (defun mime-viewer/parse-message (&optional ctl encoding)
304 (make-variable-buffer-local 'mime::article/content-info)
305 (setq mime::article/content-info (mime-viewer/parse ctl encoding))
306 (let ((ret (mime-viewer/make-preview-buffer)))
307 (make-variable-buffer-local 'mime::article/preview-buffer)
308 (setq mime::article/preview-buffer (car ret))
311 (defun mime-viewer/parse (&optional ctl encoding)
314 (setq ctl (or (mime/Content-Type)
316 (setq encoding (or (mime/Content-Transfer-Encoding)
318 (let ((ctype (car ctl))
321 (let ((boundary (assoc "boundary" params)))
322 (goto-char (point-min))
323 (search-forward "\n\n" nil t)
328 (message/strip-quoted-string (cdr boundary)))
331 (if (re-search-forward
332 (concat "^--" (regexp-quote boundary) "--$") nil t)
336 (mime-viewer/parse-multipart
339 boundary ctype params encoding)
341 ((string= ctype "message/rfc822")
342 (mime::content-info/create
343 (point-min) (point-max)
344 ctype params encoding
347 (narrow-to-region (progn
348 (goto-char (point-min))
349 (if (re-search-forward "^$" nil t)
354 (list (mime-viewer/parse))
359 (mime::content-info/create (point-min) (point-max)
360 ctype params encoding nil)
364 (defun mime-viewer/parse-multipart (beg end boundary ctype params encoding)
365 (let ((sep (concat "^--" (regexp-quote boundary) "$"))
366 cb ce ct ret ncb children)
369 (narrow-to-region beg end)
370 (goto-char (point-min))
371 (search-forward (concat "--" boundary "\n") nil t)
372 (setq cb (match-end 0))
373 (while (re-search-forward sep nil t)
374 (setq ce (match-beginning 0))
375 (setq ncb (match-end 0))
378 (narrow-to-region cb ce)
379 (setq ret (apply (function mime-viewer/parse)
380 (cond ((string= ctype "multipart/digest")
381 '(("message/rfc822") "7bit")
383 (t '(("text/plain") "7bit"))
387 (setq children (nconc children (list ret)))
388 (goto-char (mime::content-info/point-max ret))
389 (search-forward (concat "--" boundary "\n") nil t)
390 (goto-char (setq cb (match-end 0)))
392 (setq ce (point-max))
395 (narrow-to-region cb ce)
396 (setq ret (apply (function mime-viewer/parse)
397 (cond ((string= ctype "multipart/mixed")
398 '(("text/plain") "7bit")
400 ((string= ctype "multipart/digest")
401 '(("message/rfc822") "7bit")
405 (setq children (nconc children (list ret)))
407 (setq beg (point-min))
409 (mime::content-info/create beg end ctype params encoding children)
412 (defun mime::parse-parameter (str)
413 (let ((ret (message::parse "\;" str)))
416 (message::parse mime/token-regexp
417 (message::parsed/rest ret)))
418 (let ((parameter (downcase (message::parsed/matched ret))))
419 (if (setq ret (message::parse "=" (message::parsed/rest ret)))
422 mime/content-parameter-value-regexp
423 (message::parsed/rest ret)))
424 (message::make-parsed
426 (message/strip-quoted-string
427 (message::parsed/matched ret))
429 (message::parsed/rest ret)
433 (defun mime::parse-field-body/Content-Type (str)
434 (let ((ret (message::parse mime/content-type-subtype-regexp str)))
436 (let ((ctype (downcase (message::parsed/matched ret)))
439 (setq str (message::parsed/rest ret))
440 (setq ret (mime::parse-parameter str))
442 (setq dest (cons (message::parsed/matched ret) dest))
444 (if (string-match "^[ \t]*$" str)
445 (cons ctype (reverse dest))
448 (defun mime/Content-Type (&optional port)
449 "Read field-body of Content-Type field from PORT and parse it.
450 PORT must be buffer or string. If PORT is omitted,
451 it is regarded as current-buffer. [tm-view]"
453 (setq port (current-buffer))
455 (let ((str (if (get-buffer port)
456 (save-window-excursion
457 (switch-to-buffer port)
458 (message/get-field-body "Content-Type")
463 (mime::parse-field-body/Content-Type
464 (message/unfolding-string str))
467 (defun mime/Content-Transfer-Encoding (&optional default-encoding)
468 (let ((str (message/get-field-body "Content-Transfer-Encoding")))
474 (defun mime-viewer/get-subject (param)
475 (if (member (cdr (assq 'encoding param))
476 mime-viewer/uuencode-encoding-name-list)
478 (or (if (re-search-forward "^begin [0-9]+ " nil t)
479 (if (looking-at ".+$")
480 (buffer-substring (match-beginning 0)(match-end 0))
484 (or (and (setq ret (assoc "name" param))
485 (message/strip-quoted-string (cdr ret))
487 (and (setq ret (assoc "x-name" param))
488 (message/strip-quoted-string (cdr ret))
493 (narrow-to-region (point-min)
494 (or (and (search-forward "\n\n" nil t)
499 (message/get-field-body "Content-Description")
500 (message/get-field-body "Subject")
505 (defun mime-viewer/get-name (param)
506 (let ((str (mime-viewer/get-subject param)))
507 (if (string-match " " str)
508 (if (or (string-match mime-viewer/file-name-regexp-1 str)
509 (string-match mime-viewer/file-name-regexp-2 str))
510 (substring str (match-beginning 0)(match-end 0))
512 (replace-as-filename str)
515 (defun mime-viewer/make-preview-buffer (&optional buf cinfo obuf)
516 (let ((the-buf (current-buffer))
524 (switch-to-buffer buf)
527 (setq cinfo mime::article/content-info)
530 (setq obuf (concat "*Preview-" (buffer-name buf) "*"))
532 (setq pcl (mime::make-flat-content-list cinfo))
533 (let ((bf (get-buffer obuf)))
534 (switch-to-buffer obuf)
535 (setq buffer-read-only nil)
539 (make-variable-buffer-local 'mime::preview/article-buffer)
540 (setq mime::preview/article-buffer the-buf)
541 (make-variable-buffer-local 'mime::preview/original-major-mode)
542 (setq mime::preview/original-major-mode mode)
543 (setq major-mode 'mime/viewer-mode)
544 (setq mode-name "MIME-View")
549 (let ((beg (mime::content-info/point-min cell))
550 (end (mime::content-info/point-max cell))
551 (ctype (mime::content-info/type cell))
552 (params (mime::content-info/parameters cell))
553 he cnum e nb ne subj str)
554 (setq cnum (mime::get-point-content-number beg cinfo))
555 (switch-to-buffer the-buf)
556 (setq he (save-excursion
558 (re-search-forward "^$" nil t)
561 (switch-to-buffer obuf)
563 (narrow-to-region nb nb)
564 (switch-to-buffer the-buf)
565 (if (mime-viewer/header-visible-p cnum cinfo ctype)
567 (setq str (buffer-substring beg he))
568 (switch-to-buffer obuf)
572 mime-viewer/content-header-filter-alist))
574 (if (and f (setq f (cdr f)))
576 (mime-viewer/default-content-header-filter)
578 (switch-to-buffer the-buf)
580 (if (mime-viewer/body-visible-p cnum cinfo ctype)
582 (setq str (buffer-substring he end))
583 (switch-to-buffer obuf)
585 (setq be (point-max))
586 (narrow-to-region be be)
588 (setq ne (point-max))
589 (let ((f (or (assoc-value
591 mime-viewer/content-filter-alist)
593 (if (and f (fboundp f))
594 (funcall f ctype params encoding)
595 (mime-viewer/default-content-filter
596 cnum cinfo ctype params subj)
598 (setq ne (point-max))
600 (switch-to-buffer the-buf)
602 (switch-to-buffer obuf)
603 (mime-viewer/default-content-separator
604 cnum cinfo ctype params subj)
607 (setq subj (mime-viewer/get-subject params))
609 (funcall mime-viewer/content-subject-function
610 cnum cinfo ctype params subj)
611 (setq ne (point-max))
613 (mime::preview-content-info/create nb (- ne 1)
619 (set-buffer-modified-p nil)
620 (setq buffer-read-only t)
621 (switch-to-buffer the-buf)
626 ;;; @ content information
629 (defun mime::get-point-content-number (p &optional cinfo)
631 (setq cinfo mime::article/content-info)
633 (let ((b (mime::content-info/point-min cinfo))
634 (e (mime::content-info/point-max cinfo))
635 (c (mime::content-info/children cinfo))
637 (if (and (<= b p)(<= p e))
638 (or (let (co ret (sn 0))
642 (setq ret (mime::get-point-content-number p co))
643 (cond ((eq ret t) (throw 'tag (list sn)))
644 (ret (throw 'tag (cons sn ret)))
651 (defun mime-article/cnum-to-cinfo (cn &optional cinfo)
653 (setq cinfo mime::article/content-info)
660 (let ((rc (nth sn (mime::content-info/children cinfo))))
662 (mime-article/cnum-to-cinfo (cdr cn) rc)
666 (defun mime::make-flat-content-list (&optional cinfo)
668 (setq cinfo mime::article/content-info)
670 (let ((dest (list cinfo))
671 (rcl (mime::content-info/children cinfo))
674 (setq dest (nconc dest (mime::make-flat-content-list (car rcl))))
679 (defun mime::point-preview-content (p &optional pcl)
681 (setq pcl mime::preview/content-list)
687 (if (and (<= (mime::preview-content-info/point-min cell) p)
688 (<= p (mime::preview-content-info/point-max cell))
701 (defun mime/Quoted-Printable-decode-region (beg end)
705 (narrow-to-region beg end)
706 (goto-char (point-min))
707 (while (re-search-forward "=\n" nil t)
710 (goto-char (point-min))
712 (while (re-search-forward mime/Quoted-Printable-octet-regexp nil t)
713 (setq b (match-beginning 0))
714 (setq e (match-end 0))
715 (setq str (buffer-substring b e))
717 (insert (mime/Quoted-Printable-decode-string str))
721 (defun mime/Base64-decode-region (beg end)
725 (narrow-to-region beg end)
726 (goto-char (point-min))
727 (while (search-forward "\n" nil t)
730 (let ((str (buffer-substring (point-min)(point-max))))
731 (delete-region (point-min)(point-max))
732 (insert (mime/base64-decode-string str))
735 (defun mime/make-method-args (cal format)
740 (let ((ret (cdr (assoc (eval arg) cal))))
748 (defun mime/start-external-method-region (beg end cal)
751 (narrow-to-region beg end)
753 (let ((method (cdr (assoc 'method cal)))
754 (name (mime-viewer/get-name cal))
757 (let ((file (make-temp-name
758 (expand-file-name "TM" mime/tmp-dir)))
763 (if (re-search-forward "^$" nil t)
769 (write-region b end file)
771 'name (replace-as-filename name) cal))
772 (setq cal (put-alist 'file file cal))
775 mime/output-buffer-name (car method)
777 (mime/make-method-args cal (cdr (cdr method)))
779 (apply (function start-process) args)
780 (mime/show-output-buffer)
784 (defun mime/decode-message/partial-region (beg end cal)
786 (let* ((root-dir (expand-file-name
787 (concat "m-prts-" (user-login-name)) mime/tmp-dir))
788 (id (cdr (assoc "id" cal)))
789 (number (cdr (assoc "number" cal)))
790 (total (cdr (assoc "total" cal)))
791 (the-buf (current-buffer))
793 (mother mime::article/preview-buffer))
794 (if (not (file-exists-p root-dir))
795 (make-directory root-dir)
797 (setq id (replace-as-filename id))
798 (setq root-dir (concat root-dir "/" id))
799 (if (not (file-exists-p root-dir))
800 (make-directory root-dir)
802 (setq file (concat root-dir "/FULL"))
803 (if (not (file-exists-p file))
805 (re-search-forward "^$")
806 (goto-char (+ (match-end 0) 1))
807 (setq file (concat root-dir "/" number))
808 (write-region (point) (point-max) file)
809 (if (get-buffer "*MIME-temp*")
810 (kill-buffer "*MIME-temp*")
812 (switch-to-buffer "*MIME-temp*")
814 (max (string-to-int total))
818 (setq file (concat root-dir "/" (int-to-string i)))
819 (if (not (file-exists-p file))
821 (switch-to-buffer the-buf)
824 (insert-file-contents file)
825 (goto-char (point-max))
828 (delete-other-windows)
829 (write-file (concat root-dir "/FULL"))
830 (setq major-mode 'mime/show-message-mode)
831 (mime/viewer-mode mother)
832 (pop-to-buffer (current-buffer))
836 (delete-other-windows)
838 (setq major-mode 'mime/show-message-mode)
839 (mime/viewer-mode mother)
840 (pop-to-buffer (current-buffer))
844 (defun mime/get-content-decoding-alist (al)
845 (get-unified-alist mime/content-decoding-condition al)
848 (defun mime::article/decode-content-region (cinfo)
849 (let ((beg (mime::content-info/point-min cinfo))
850 (end (mime::content-info/point-max cinfo))
851 (ctype (mime::content-info/type cinfo))
852 (params (mime::content-info/parameters cinfo))
853 (encoding (mime::content-info/encoding cinfo))
856 (let (method cal ret)
857 (setq cal (append (list (cons 'type ctype)
858 (cons 'encoding encoding)
859 (cons 'major-mode major-mode)
862 (if mime-viewer/decoding-mode
864 (cons 'mode mime-viewer/decoding-mode)
867 (setq ret (mime/get-content-decoding-alist cal))
868 (setq method (cdr (assoc 'method ret)))
869 (cond ((and (symbolp method)
871 (funcall method beg end ret)
873 ((and (listp method)(stringp (car method)))
874 (mime/start-external-method-region beg end ret)
876 (t (mime/show-output-buffer
877 "No method are specified for %s\n" ctype)
882 (defun mime/show-output-buffer (&rest forms)
883 (let ((the-buf (current-buffer)))
884 (if (null (get-buffer-window mime/output-buffer-name))
885 (split-window-vertically (/ (* (window-height) 3) 4))
887 (pop-to-buffer mime/output-buffer-name)
888 (goto-char (point-max))
890 (insert (apply (function format) forms))
892 (pop-to-buffer the-buf)
899 (defvar mime-viewer/code-converter-alist nil)
901 (defun mime-viewer/default-code-convert-region
902 (beg end charset &optional encoding)
903 (if (member charset '("quoted-printable" "base64"))
904 (mime/code-convert-region-to-emacs beg (point-max) charset)
907 (defun mime-viewer/filter-text/plain (ctype params encoding)
908 (let ((charset (cdr (assoc "charset" params)))
909 (beg (point-min)) (end (point-max))
911 (goto-char (point-min))
912 (cond ((string= encoding "quoted-printable")
913 (mime/Quoted-Printable-decode-region beg end)
915 ((string= encoding "base64")
916 (mime/Base64-decode-region beg end)
918 (let* ((mode mime::preview/original-major-mode)
919 (m (assq mode mime-viewer/code-converter-alist))
921 (if (and m (fboundp (setq m (cdr m))))
922 (funcall m beg (point-max) charset encoding)
923 (mime-viewer/default-code-convert-region beg (point-max)
926 (run-hooks 'mime-viewer/plain-text-preview-hook)
930 ;;; @ MIME viewer mode
933 (defvar mime/viewer-mode-map nil)
934 (if (null mime/viewer-mode-map)
936 (setq mime/viewer-mode-map (make-keymap))
937 (suppress-keymap mime/viewer-mode-map)
938 (define-key mime/viewer-mode-map
939 "u" (function mime-viewer/up-content))
940 (define-key mime/viewer-mode-map
941 "p" (function mime-viewer/previous-content))
942 (define-key mime/viewer-mode-map
943 "n" (function mime-viewer/next-content))
944 (define-key mime/viewer-mode-map
945 " " (function mime-viewer/scroll-up-content))
946 (define-key mime/viewer-mode-map
947 "\M- " (function mime-viewer/scroll-down-content))
948 (define-key mime/viewer-mode-map
949 "\177" (function mime-viewer/scroll-down-content))
950 (define-key mime/viewer-mode-map
951 "\C-m" (function mime-viewer/next-line-content))
952 (define-key mime/viewer-mode-map
953 "\C-\M-m" (function mime-viewer/previous-line-content))
954 (define-key mime/viewer-mode-map
955 "v" (function mime-viewer/play-content))
956 (define-key mime/viewer-mode-map
957 "e" (function mime-viewer/extract-content))
958 (define-key mime/viewer-mode-map
959 "\C-c\C-p" (function mime-viewer/print-content))
960 (define-key mime/viewer-mode-map
961 "q" (function mime-viewer/quit))
962 (define-key mime/viewer-mode-map
963 "\C-c\C-x" (function mime-viewer/kill-buffer))
966 (defun mime/viewer-mode (&optional mother ctl encoding)
967 "Major mode for viewing MIME message.
969 u Move to upper content
970 p Move to previous content
971 n Move to next content
975 RET Move to next line
976 M-RET Move to previous line
977 v Decode the content as `play mode'
978 e Decode the content as `extract mode'
979 C-c C-p Decode the content as `print mode'
983 (setq mime-viewer/ignored-field-regexp
985 (mapconcat (function regexp-quote)
986 mime-viewer/ignored-field-list "\\|")
988 (let ((buf (get-buffer mime/output-buffer-name))
989 (the-buf (current-buffer))
993 (switch-to-buffer buf)
995 (switch-to-buffer the-buf)
997 (let ((ret (mime-viewer/parse-message ctl encoding)))
999 (switch-to-buffer (car ret))
1002 (make-variable-buffer-local
1003 'mime/show-mode-old-window-configuration)
1004 (setq mime/show-mode-old-window-configuration
1005 (current-window-configuration))
1006 (make-variable-buffer-local 'mime/mother-buffer)
1007 (setq mime/mother-buffer mother)
1009 (use-local-map mime/viewer-mode-map)
1010 (make-variable-buffer-local 'mime::preview/content-list)
1011 (setq mime::preview/content-list (nth 1 ret))
1013 (let ((ce (mime::preview-content-info/point-max
1014 (car mime::preview/content-list)
1017 (goto-char (point-min))
1018 (search-forward "\n\n" nil t)
1019 (setq e (match-end 0))
1023 (run-hooks 'mime/viewer-mode-hook)
1026 (defun mime-preview/point-content-number (point)
1027 (save-window-excursion
1028 (let ((pc (mime::point-preview-content (point)))
1030 (switch-to-buffer (mime::preview-content-info/buffer pc))
1031 (setq cinfo (mime::preview-content-info/content-info pc))
1032 (mime::get-point-content-number (mime::content-info/point-min cinfo))
1035 (defun mime-preview/cinfo-to-pcinfo (cinfo)
1036 (let ((rpcl mime::preview/content-list) cell)
1039 (setq cell (car rpcl))
1040 (if (eq cinfo (mime::preview-content-info/content-info cell))
1043 (setq rpcl (cdr rpcl))
1046 (defvar mime-preview/after-decoded-position nil)
1048 (defun mime-preview/decode-content ()
1050 (let ((pc (mime::point-preview-content (point))))
1052 (let ((the-buf (current-buffer)))
1053 (setq mime-preview/after-decoded-position (point))
1054 (switch-to-buffer (mime::preview-content-info/buffer pc))
1055 (mime::article/decode-content-region
1056 (mime::preview-content-info/content-info pc))
1057 (if (eq (current-buffer)
1058 (mime::preview-content-info/buffer pc))
1060 (switch-to-buffer the-buf)
1061 (goto-char mime-preview/after-decoded-position)
1065 (defun mime-viewer/play-content ()
1067 (let ((mime-viewer/decoding-mode "play"))
1068 (mime-preview/decode-content)
1071 (defun mime-viewer/extract-content ()
1073 (let ((mime-viewer/decoding-mode "extract"))
1074 (mime-preview/decode-content)
1077 (defun mime-viewer/print-content ()
1079 (let ((mime-viewer/decoding-mode "print"))
1080 (mime-preview/decode-content)
1083 (defun mime-viewer/up-content ()
1085 (let ((pc (mime::point-preview-content (point))) cinfo
1086 (the-buf (current-buffer))
1088 (switch-to-buffer (mime::preview-content-info/buffer pc))
1089 (setq cinfo (mime::preview-content-info/content-info pc))
1090 (setq cn (mime::get-point-content-number
1091 (mime::content-info/point-min cinfo)))
1093 (mime-viewer/quit the-buf
1094 (mime::preview-content-info/buffer pc)
1096 (setq r (mime-article/cnum-to-cinfo (butlast cn)))
1097 (switch-to-buffer the-buf)
1099 (let ((rpcl mime::preview/content-list) cell)
1101 (setq cell (car rpcl))
1102 (if (eq r (mime::preview-content-info/content-info cell))
1104 (goto-char (mime::preview-content-info/point-min cell))
1107 (setq rpcl (cdr rpcl))
1111 (defun mime-viewer/previous-content ()
1113 (let* ((pcl mime::preview/content-list)
1115 (i (- (length pcl) 1))
1119 (setq beg (mime::preview-content-info/point-min (nth i pcl)))
1121 (throw 'tag (goto-char beg))
1127 (defun mime-viewer/next-content ()
1129 (let ((pcl mime::preview/content-list)
1134 (setq beg (mime::preview-content-info/point-min (car pcl)))
1136 (throw 'tag (goto-char beg))
1138 (setq pcl (cdr pcl))
1142 (defun mime-viewer/scroll-up-content (&optional h)
1145 (setq h (- (window-height) 1))
1147 (let ((pcl mime::preview/content-list)
1153 (setq beg (mime::preview-content-info/point-min (car pcl)))
1157 (setq pcl (cdr pcl))
1165 (defun mime-viewer/scroll-down-content (&optional h)
1168 (setq h (- (window-height) 1))
1170 (let ((pcl mime::preview/content-list)
1174 (or (let ((i (- (length pcl) 1)))
1177 (setq beg (mime::preview-content-info/point-min
1185 (forward-line (- h))
1190 (defun mime-viewer/next-line-content ()
1192 (mime-viewer/scroll-up-content 1)
1195 (defun mime-viewer/previous-line-content ()
1197 (mime-viewer/scroll-down-content 1)
1200 (defun mime-viewer/quit (&optional the-buf buf)
1203 (setq the-buf (current-buffer))
1206 (setq buf (mime::preview-content-info/buffer
1207 (mime::point-preview-content (point))))
1210 (switch-to-buffer buf)
1211 (assoc major-mode mime-viewer/quitting-method-alist)
1215 (switch-to-buffer the-buf)
1220 (defun mime-viewer/kill-buffer ()
1222 (kill-buffer (current-buffer))
1225 (run-hooks 'tm-view-load-hook)