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 6.79 1995/09/08 14:50:03 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/content-type-subtype-regexp
34 (concat mime/token-regexp "/" mime/token-regexp))
35 (defconst mime/content-parameter-value-regexp
37 message/quoted-string-regexp
40 (defconst mime/output-buffer-name "*MIME-out*")
41 (defconst mime/decoding-buffer-name "*MIME-decoding*")
47 (defvar mime/content-decoding-condition
48 '(((type . "text/plain")
49 (method "tm-plain" nil 'file 'type 'encoding 'mode 'name))
50 ;;((type . "text/x-latex")
51 ;; (method "tm-latex" nil 'file 'type 'encoding 'mode 'name))
52 ((type . "audio/basic")
53 (method "tm-au" nil 'file 'type 'encoding 'mode 'name))
55 (method "tm-image" nil 'file 'type 'encoding 'mode 'name))
56 ((type . "image/jpeg")
57 (method "tm-image" nil 'file 'type 'encoding 'mode 'name))
58 ((type . "image/tiff")
59 (method "tm-image" nil 'file 'type 'encoding 'mode 'name))
60 ((type . "image/x-tiff")
61 (method "tm-image" nil 'file 'type 'encoding 'mode 'name))
62 ((type . "image/x-xbm")
63 (method "tm-image" nil 'file 'type 'encoding 'mode 'name))
64 ((type . "image/x-pic")
65 (method "tm-image" nil 'file 'type 'encoding 'mode 'name))
66 ((type . "video/mpeg")
67 (method "tm-mpeg" nil 'file 'type 'encoding 'mode 'name))
68 ((type . "application/octet-stream")
69 (method "tm-file" nil 'file 'type 'encoding 'mode 'name))
70 ;;((type . "message/external-body")
71 ;; (method "xterm" nil
72 ;; "-e" "showexternal"
73 ;; 'file '"access-type" '"name" '"site" '"directory"))
74 ((type . "message/partial")
75 (method . mime/decode-message/partial-region))
76 ((type . "message/rfc822")
77 (method "tm-file" nil 'file 'type 'encoding 'mode 'name))
79 "-m" "tm" "-x" "-d" "-z" "-e" 'file)(mode . "play"))
82 (defvar mime-viewer/childrens-header-showing-Content-Type-list
85 (defvar mime-viewer/default-showing-Content-Type-list
86 '("text/plain" "text/richtext" "text/enriched"
87 "text/x-latex" "application/x-latex"
88 "application/octet-stream" nil
89 "application/x-selection" "application/x-comment"))
91 (defvar mime-viewer/content-subject-omitting-Content-Type-list
92 '("application/x-selection"))
94 (defvar mime-viewer/uuencode-encoding-name-list '("x-uue" "x-uuencode"))
96 (defvar mime-viewer/ignored-field-list
97 '("Received" "Return-Path" "Replied" "Errors-To"
98 "Lines" "Sender" "Path" "Nntp-Posting-Host"
99 "Content-Type" "Precedence"))
101 (defvar mime-viewer/ignored-field-regexp)
103 (defvar mime-viewer/decoding-mode "play" "MIME body decoding mode")
105 (defvar mime-viewer/file-name-char-regexp "[A-Za-z0-9+_-]")
107 (defvar mime-viewer/file-name-regexp-1
108 (concat mime-viewer/file-name-char-regexp "+\\."
109 mime-viewer/file-name-char-regexp "+"))
111 (defvar mime-viewer/file-name-regexp-2
112 (concat (regexp-* mime-viewer/file-name-char-regexp)
113 "\\(\\." mime-viewer/file-name-char-regexp "+\\)*"))
115 (defvar mime-viewer/announcement-for-message/partial
116 "[[ This is message/partial style split message. ]]
117 [[ Please press `v' key in this buffer. ]]")
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/insert-content-subject
158 (cnum cinfo ctype params subj)
160 (let ((access-type (assoc "access-type" params))
161 (num (or (assoc-value "x-part-number" params)
165 (format "%s" (+ num 1))
171 (let ((server (assoc "server" params)))
172 (setq access-type (cdr access-type))
174 (format "[%s %s ([%s] %s)]\n" num subj
175 access-type (cdr server))
176 (let ((site (assoc-value "site" params))
177 (dir (assoc-value "directory" params))
179 (format "[%s %s ([%s] %s:%s)]\n" num subj
180 access-type site dir)
182 (format "[%s %s (%s)]\n" num subj ctype)
185 (defun mime-viewer/default-content-subject-function
186 (cnum cinfo ctype params subj)
187 (if (and (listp cnum)
190 mime-viewer/content-subject-omitting-Content-Type-list))
192 (mime-viewer/insert-content-subject
193 cnum cinfo ctype params subj)
196 (defvar mime-viewer/content-subject-function
197 (function mime-viewer/default-content-subject-function))
200 ;;; @ content header filter
203 (defun mime-viewer/default-content-header-filter ()
204 (goto-char (point-min))
205 (while (and (re-search-forward
206 (concat "^" mime-viewer/ignored-field-regexp ":")
213 (re-search-forward "^\\([^ \t]\\|$\\)" nil t)
217 (mime/decode-message-header)
220 (defvar mime-viewer/content-header-filter-alist nil)
223 ;;; @@ content filter
226 (defvar mime-viewer/content-filter-alist
227 '(("text/plain" . mime-viewer/filter-text/plain)
228 (nil . mime-viewer/filter-text/plain)))
230 (defun mime-viewer/default-content-filter (cnum cinfo ctype params subj)
234 ;;; @@ content separator
237 (defun mime-viewer/default-content-separator (cnum cinfo ctype params subj)
238 (if (and (not (mime-viewer/header-visible-p cnum cinfo ctype))
239 (not (mime-viewer/body-visible-p cnum cinfo ctype))
242 (goto-char (point-max))
247 ;;; @@ buffer local variables
250 (defvar mime::article/content-info nil)
251 (defvar mime::article/preview-buffer nil)
253 (defvar mime::preview/article-buffer nil)
254 (defvar mime::preview/content-list nil)
255 (defvar mime::preview/original-major-mode nil)
258 ;;; @@ quitting method
261 (defvar mime-viewer/quitting-method-alist
262 '((mime/show-message-mode
264 (set-window-configuration
265 mime/show-mode-old-window-configuration)
266 (let ((mother mime/mother-buffer))
268 (mime::preview-content-info/buffer
269 (car mime::preview/content-list)))
270 (mime-viewer/kill-buffer)
271 (pop-to-buffer mother)
272 (goto-char (point-min))
273 (mime-viewer/up-content)
278 ;;; @ data structures
283 (define-structure mime::content-info
284 point-min point-max type parameters encoding children)
286 ;;; @@ preview-content-info
288 (define-structure mime::preview-content-info
289 point-min point-max buffer content-info)
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 (re-search-forward
324 (concat "^--" (regexp-quote boundary) "--$") nil t)
328 (mime-viewer/parse-multipart
331 boundary ctype params encoding)
333 ((string= ctype "message/rfc822")
334 (mime::content-info/create
335 (point-min) (point-max)
336 ctype params encoding
339 (narrow-to-region (progn
340 (goto-char (point-min))
341 (if (re-search-forward "^$" nil t)
346 (list (mime-viewer/parse))
351 (mime::content-info/create (point-min) (point-max)
352 ctype params encoding nil)
356 (defun mime-viewer/parse-multipart (beg end boundary ctype params encoding)
357 (let ((sep (concat "^--" (regexp-quote boundary) "$"))
358 cb ce ct ret ncb children)
361 (narrow-to-region beg end)
362 (goto-char (point-min))
363 (search-forward (concat "--" boundary "\n") nil t)
364 (setq cb (match-end 0))
365 (while (re-search-forward sep nil t)
366 (setq ce (match-beginning 0))
367 (setq ncb (match-end 0))
370 (narrow-to-region cb ce)
371 (setq ret (apply (function mime-viewer/parse)
372 (cond ((string= ctype "multipart/digest")
373 '(("message/rfc822") "7bit")
375 (t '(("text/plain") "7bit"))
379 (setq children (nconc children (list ret)))
380 (goto-char (mime::content-info/point-max ret))
381 (search-forward (concat "--" boundary "\n") nil t)
382 (goto-char (setq cb (match-end 0)))
384 (setq ce (point-max))
387 (narrow-to-region cb ce)
388 (setq ret (apply (function mime-viewer/parse)
389 (cond ((string= ctype "multipart/mixed")
390 '(("text/plain") "7bit")
392 ((string= ctype "multipart/digest")
393 '(("message/rfc822") "7bit")
397 (setq children (nconc children (list ret)))
399 (setq beg (point-min))
401 (mime::content-info/create beg end ctype params encoding children)
404 (defun mime::parse-parameter (str)
405 (let ((ret (message::parse "\;" str)))
408 (message::parse mime/token-regexp
409 (message::parsed/rest ret)))
410 (let ((parameter (downcase (message::parsed/matched ret))))
411 (if (setq ret (message::parse "=" (message::parsed/rest ret)))
414 mime/content-parameter-value-regexp
415 (message::parsed/rest ret)))
416 (message::make-parsed
418 (message/strip-quoted-string
419 (message::parsed/matched ret))
421 (message::parsed/rest ret)
425 (defun mime::parse-field-body/Content-Type (str)
426 (let ((ret (message::parse mime/content-type-subtype-regexp str)))
428 (let ((ctype (downcase (message::parsed/matched ret)))
431 (setq str (message::parsed/rest ret))
432 (setq ret (mime::parse-parameter str))
434 (setq dest (cons (message::parsed/matched ret) dest))
436 (if (string-match "^[ \t]*$" str)
437 (cons ctype (reverse dest))
440 (defun mime/Content-Type (&optional port)
441 "Read field-body of Content-Type field from PORT and parse it.
442 PORT must be buffer or string. If PORT is omitted,
443 it is regarded as current-buffer. [tm-view]"
445 (setq port (current-buffer))
447 (let ((str (if (get-buffer port)
448 (save-window-excursion
449 (switch-to-buffer port)
450 (message/get-field-body "Content-Type")
455 (mime::parse-field-body/Content-Type
456 (message/unfolding-string str))
459 (defun mime/Content-Transfer-Encoding (&optional default-encoding)
460 (let ((str (message/get-field-body "Content-Transfer-Encoding")))
466 (defun mime-viewer/get-subject (param)
467 (if (member (cdr (assq 'encoding param))
468 mime-viewer/uuencode-encoding-name-list)
470 (or (if (re-search-forward "^begin [0-9]+ " nil t)
471 (if (looking-at ".+$")
472 (buffer-substring (match-beginning 0)(match-end 0))
476 (or (and (setq ret (assoc "name" param))
477 (message/strip-quoted-string (cdr ret))
479 (and (setq ret (assoc "x-name" param))
480 (message/strip-quoted-string (cdr ret))
485 (narrow-to-region (point-min)
486 (or (and (search-forward "\n\n" nil t)
491 (message/get-field-body "Content-Description")
492 (message/get-field-body "Subject")
497 (defun mime-viewer/get-name (param)
498 (let ((str (mime-viewer/get-subject param)))
499 (if (string-match " " str)
500 (if (or (string-match mime-viewer/file-name-regexp-1 str)
501 (string-match mime-viewer/file-name-regexp-2 str))
502 (substring str (match-beginning 0)(match-end 0))
504 (replace-as-filename str)
507 (defun mime-viewer/make-preview-buffer (&optional buf cinfo obuf)
508 (let ((the-buf (current-buffer))
516 (switch-to-buffer buf)
519 (setq cinfo mime::article/content-info)
522 (setq obuf (concat "*Preview-" (buffer-name buf) "*"))
524 (setq pcl (mime::make-flat-content-list cinfo))
525 (let ((bf (get-buffer obuf)))
526 (switch-to-buffer obuf)
527 (setq buffer-read-only nil)
531 (make-variable-buffer-local 'mime::preview/article-buffer)
532 (setq mime::preview/article-buffer the-buf)
533 (make-variable-buffer-local 'mime::preview/original-major-mode)
534 (setq mime::preview/original-major-mode mode)
535 (setq major-mode 'mime/viewer-mode)
536 (setq mode-name "MIME-View")
541 (let ((beg (mime::content-info/point-min cell))
542 (end (mime::content-info/point-max cell))
543 (ctype (mime::content-info/type cell))
544 (params (mime::content-info/parameters cell))
545 (encoding (mime::content-info/encoding cell))
546 he cnum e nb ne subj str)
547 (setq cnum (mime::get-point-content-number beg cinfo))
548 (switch-to-buffer the-buf)
549 (setq he (save-excursion
551 (re-search-forward "^$" nil t)
554 (if (> he (point-max))
555 (setq he (point-max))
559 (narrow-to-region beg he)
560 (setq subj (mime-viewer/get-subject params))
562 (switch-to-buffer obuf)
564 (narrow-to-region nb nb)
565 (switch-to-buffer the-buf)
566 (if (mime-viewer/header-visible-p cnum cinfo ctype)
568 (setq str (buffer-substring beg he))
569 (switch-to-buffer obuf)
573 mime-viewer/content-header-filter-alist))
575 (if (and f (setq f (cdr f)))
577 (mime-viewer/default-content-header-filter)
579 (run-hooks 'mime-viewer/content-header-filter-hook)
580 (switch-to-buffer the-buf)
582 (cond ((mime-viewer/body-visible-p cnum cinfo ctype)
584 (setq str (buffer-substring he end))
585 (switch-to-buffer obuf)
587 (setq be (point-max))
588 (narrow-to-region be be)
590 (setq ne (point-max))
591 (let ((f (or (assoc-value
593 mime-viewer/content-filter-alist)
595 (if (and f (fboundp f))
596 (funcall f ctype params encoding)
597 (mime-viewer/default-content-filter
598 cnum cinfo ctype params subj)
600 (setq ne (point-max))
602 (switch-to-buffer the-buf)
604 ((equal ctype "message/partial")
606 (switch-to-buffer obuf)
608 (setq be (point-max))
609 (narrow-to-region be be)
611 mime-viewer/announcement-for-message/partial)
612 (setq ne (point-max))
614 (switch-to-buffer the-buf)
617 (null (mime::content-info/children cinfo))
620 (switch-to-buffer obuf)
622 (setq be (point-max))
623 (narrow-to-region be be)
624 (mime-viewer/insert-content-subject
625 cnum cinfo ctype params subj)
626 (setq ne (point-max))
628 (switch-to-buffer the-buf)
631 (switch-to-buffer obuf)
632 (mime-viewer/default-content-separator
633 cnum cinfo ctype params subj)
637 (funcall mime-viewer/content-subject-function
638 cnum cinfo ctype params subj)
639 (setq ne (point-max))
641 (mime::preview-content-info/create nb (- ne 1)
647 (set-buffer-modified-p nil)
648 (setq buffer-read-only t)
649 (switch-to-buffer the-buf)
654 ;;; @ content information
657 (defun mime::get-point-content-number (p &optional cinfo)
659 (setq cinfo mime::article/content-info)
661 (let ((b (mime::content-info/point-min cinfo))
662 (e (mime::content-info/point-max cinfo))
663 (c (mime::content-info/children cinfo))
665 (if (and (<= b p)(<= p e))
666 (or (let (co ret (sn 0))
670 (setq ret (mime::get-point-content-number p co))
671 (cond ((eq ret t) (throw 'tag (list sn)))
672 (ret (throw 'tag (cons sn ret)))
679 (defun mime-article/cnum-to-cinfo (cn &optional cinfo)
681 (setq cinfo mime::article/content-info)
688 (let ((rc (nth sn (mime::content-info/children cinfo))))
690 (mime-article/cnum-to-cinfo (cdr cn) rc)
694 (defun mime::make-flat-content-list (&optional cinfo)
696 (setq cinfo mime::article/content-info)
698 (let ((dest (list cinfo))
699 (rcl (mime::content-info/children cinfo))
702 (setq dest (nconc dest (mime::make-flat-content-list (car rcl))))
707 (defun mime::point-preview-content (p &optional pcl)
709 (setq pcl mime::preview/content-list)
715 (if (and (<= (mime::preview-content-info/point-min cell) p)
716 (<= p (mime::preview-content-info/point-max cell))
729 (defun mime/make-method-args (cal format)
734 (let ((ret (cdr (assoc (eval arg) cal))))
742 (defun mime/start-external-method-region (beg end cal)
745 (narrow-to-region beg end)
747 (let ((method (cdr (assoc 'method cal)))
748 (name (mime-viewer/get-name cal))
751 (let ((file (make-temp-name
752 (expand-file-name "TM" mime/tmp-dir)))
757 (if (re-search-forward "^$" nil t)
763 (write-region b end file)
765 'name (replace-as-filename name) cal))
766 (setq cal (put-alist 'file file cal))
769 mime/output-buffer-name (car method)
771 (mime/make-method-args cal (cdr (cdr method)))
773 (apply (function start-process) args)
774 (mime/show-output-buffer)
778 (defun mime/decode-message/partial-region (beg end cal)
780 (let* ((root-dir (expand-file-name
781 (concat "m-prts-" (user-login-name)) mime/tmp-dir))
782 (id (cdr (assoc "id" cal)))
783 (number (cdr (assoc "number" cal)))
784 (total (cdr (assoc "total" cal)))
785 (the-buf (current-buffer))
787 (mother mime::article/preview-buffer))
788 (if (not (file-exists-p root-dir))
789 (make-directory root-dir)
791 (setq id (replace-as-filename id))
792 (setq root-dir (concat root-dir "/" id))
793 (if (not (file-exists-p root-dir))
794 (make-directory root-dir)
796 (setq file (concat root-dir "/FULL"))
797 (if (not (file-exists-p file))
799 (re-search-forward "^$")
800 (goto-char (+ (match-end 0) 1))
801 (setq file (concat root-dir "/" number))
802 (write-region (point) (point-max) file)
803 (if (get-buffer "*MIME-temp*")
804 (kill-buffer "*MIME-temp*")
806 (switch-to-buffer "*MIME-temp*")
808 (max (string-to-int total))
812 (setq file (concat root-dir "/" (int-to-string i)))
813 (if (not (file-exists-p file))
815 (switch-to-buffer the-buf)
818 (insert-file-contents file)
819 (goto-char (point-max))
822 (delete-other-windows)
823 (write-file (concat root-dir "/FULL"))
824 (setq major-mode 'mime/show-message-mode)
825 (mime/viewer-mode mother)
826 (pop-to-buffer (current-buffer))
830 (delete-other-windows)
832 (setq major-mode 'mime/show-message-mode)
833 (mime/viewer-mode mother)
834 (pop-to-buffer (current-buffer))
838 (defun mime/get-content-decoding-alist (al)
839 (get-unified-alist mime/content-decoding-condition al)
842 (defun mime::article/decode-content-region (cinfo)
843 (let ((beg (mime::content-info/point-min cinfo))
844 (end (mime::content-info/point-max cinfo))
845 (ctype (mime::content-info/type cinfo))
846 (params (mime::content-info/parameters cinfo))
847 (encoding (mime::content-info/encoding cinfo))
850 (let (method cal ret)
851 (setq cal (append (list (cons 'type ctype)
852 (cons 'encoding encoding)
853 (cons 'major-mode major-mode)
856 (if mime-viewer/decoding-mode
858 (cons 'mode mime-viewer/decoding-mode)
861 (setq ret (mime/get-content-decoding-alist cal))
862 (setq method (cdr (assoc 'method ret)))
863 (cond ((and (symbolp method)
865 (funcall method beg end ret)
867 ((and (listp method)(stringp (car method)))
868 (mime/start-external-method-region beg end ret)
870 (t (mime/show-output-buffer
871 "No method are specified for %s\n" ctype)
876 (defun mime/show-output-buffer (&rest forms)
877 (let ((the-buf (current-buffer)))
878 (if (null (get-buffer-window mime/output-buffer-name))
879 (split-window-vertically (/ (* (window-height) 3) 4))
881 (pop-to-buffer mime/output-buffer-name)
882 (goto-char (point-max))
884 (insert (apply (function format) forms))
886 (pop-to-buffer the-buf)
893 (defvar mime-viewer/code-converter-alist nil)
895 (defun mime-viewer/default-code-convert-region
896 (beg end charset &optional encoding)
897 (if (member encoding '("quoted-printable" "base64"))
898 (mime/code-convert-region-to-emacs beg (point-max) charset)
901 (defun mime-viewer/filter-text/plain (ctype params encoding)
902 (let ((charset (cdr (assoc "charset" params)))
903 (beg (point-min)) (end (point-max))
905 (goto-char (point-min))
906 (cond ((string= encoding "quoted-printable")
907 (quoted-printable-decode-region beg end)
909 ((string= encoding "base64")
910 (base64-decode-region beg end)
912 (let* ((mode mime::preview/original-major-mode)
913 (m (assq mode mime-viewer/code-converter-alist))
915 (if (and m (fboundp (setq m (cdr m))))
916 (funcall m beg (point-max) charset encoding)
917 (mime-viewer/default-code-convert-region beg (point-max)
920 (goto-char (point-max))
921 (if (not (eq (char-after (1- (point))) ?\n))
925 (run-hooks 'mime-viewer/plain-text-preview-hook)
929 ;;; @ MIME viewer mode
932 (defvar mime/viewer-mode-map nil)
933 (if (null mime/viewer-mode-map)
935 (setq mime/viewer-mode-map (make-keymap))
936 (suppress-keymap mime/viewer-mode-map)
937 (define-key mime/viewer-mode-map
938 "u" (function mime-viewer/up-content))
939 (define-key mime/viewer-mode-map
940 "p" (function mime-viewer/previous-content))
941 (define-key mime/viewer-mode-map
942 "n" (function mime-viewer/next-content))
943 (define-key mime/viewer-mode-map
944 " " (function mime-viewer/scroll-up-content))
945 (define-key mime/viewer-mode-map
946 "\M- " (function mime-viewer/scroll-down-content))
947 (define-key mime/viewer-mode-map
948 "\177" (function mime-viewer/scroll-down-content))
949 (define-key mime/viewer-mode-map
950 "\C-m" (function mime-viewer/next-line-content))
951 (define-key mime/viewer-mode-map
952 "\C-\M-m" (function mime-viewer/previous-line-content))
953 (define-key mime/viewer-mode-map
954 "v" (function mime-viewer/play-content))
955 (define-key mime/viewer-mode-map
956 "e" (function mime-viewer/extract-content))
957 (define-key mime/viewer-mode-map
958 "\C-c\C-p" (function mime-viewer/print-content))
959 (define-key mime/viewer-mode-map
960 "q" (function mime-viewer/quit))
961 (define-key mime/viewer-mode-map
962 "\C-c\C-x" (function mime-viewer/kill-buffer))
963 (cond ((string-match "XEmacs\\|Lucid" emacs-version)
964 (define-key mime/viewer-mode-map
965 'button2 (function mime-viewer/play-content-mouse))
967 ((>= emacs-major-version 19)
968 (define-key mime/viewer-mode-map
969 [mouse-2] (function mime-viewer/play-content-mouse))
973 (defun mime/viewer-mode (&optional mother ctl encoding)
974 "Major mode for viewing MIME message.
976 u Move to upper content
977 p Move to previous content
978 n Move to next content
982 RET Move to next line
983 M-RET Move to previous line
984 v Decode the content as `play mode'
985 e Decode the content as `extract mode'
986 C-c C-p Decode the content as `print mode'
990 (setq mime-viewer/ignored-field-regexp
992 (mapconcat (function regexp-quote)
993 mime-viewer/ignored-field-list "\\|")
995 (let ((buf (get-buffer mime/output-buffer-name))
996 (the-buf (current-buffer))
1000 (switch-to-buffer buf)
1002 (switch-to-buffer the-buf)
1004 (let ((ret (mime-viewer/parse-message ctl encoding)))
1006 (switch-to-buffer (car ret))
1009 (make-variable-buffer-local
1010 'mime/show-mode-old-window-configuration)
1011 (setq mime/show-mode-old-window-configuration
1012 (current-window-configuration))
1013 (make-variable-buffer-local 'mime/mother-buffer)
1014 (setq mime/mother-buffer mother)
1016 (use-local-map mime/viewer-mode-map)
1017 (make-variable-buffer-local 'mime::preview/content-list)
1018 (setq mime::preview/content-list (nth 1 ret))
1020 (let ((ce (mime::preview-content-info/point-max
1021 (car mime::preview/content-list)
1024 (goto-char (point-min))
1025 (search-forward "\n\n" nil t)
1026 (setq e (match-end 0))
1030 (run-hooks 'mime/viewer-mode-hook)
1033 (defun mime-preview/point-content-number (point)
1034 (save-window-excursion
1035 (let ((pc (mime::point-preview-content (point)))
1037 (switch-to-buffer (mime::preview-content-info/buffer pc))
1038 (setq cinfo (mime::preview-content-info/content-info pc))
1039 (mime::get-point-content-number (mime::content-info/point-min cinfo))
1042 (defun mime-preview/cinfo-to-pcinfo (cinfo)
1043 (let ((rpcl mime::preview/content-list) cell)
1046 (setq cell (car rpcl))
1047 (if (eq cinfo (mime::preview-content-info/content-info cell))
1050 (setq rpcl (cdr rpcl))
1053 (defvar mime-preview/after-decoded-position nil)
1055 (defun mime-preview/decode-content ()
1057 (let ((pc (mime::point-preview-content (point))))
1059 (let ((the-buf (current-buffer)))
1060 (setq mime-preview/after-decoded-position (point))
1061 (switch-to-buffer (mime::preview-content-info/buffer pc))
1062 (mime::article/decode-content-region
1063 (mime::preview-content-info/content-info pc))
1064 (if (eq (current-buffer)
1065 (mime::preview-content-info/buffer pc))
1067 (switch-to-buffer the-buf)
1068 (goto-char mime-preview/after-decoded-position)
1072 (defun mime-viewer/play-content ()
1074 (let ((mime-viewer/decoding-mode "play"))
1075 (mime-preview/decode-content)
1078 (defun mime-viewer/play-content-mouse (e)
1081 (mime-viewer/play-content)
1084 (defun mime-viewer/extract-content ()
1086 (let ((mime-viewer/decoding-mode "extract"))
1087 (mime-preview/decode-content)
1090 (defun mime-viewer/print-content ()
1092 (let ((mime-viewer/decoding-mode "print"))
1093 (mime-preview/decode-content)
1096 (defun mime-viewer/up-content ()
1098 (let ((pc (mime::point-preview-content (point))) cinfo
1099 (the-buf (current-buffer))
1101 (switch-to-buffer (mime::preview-content-info/buffer pc))
1102 (setq cinfo (mime::preview-content-info/content-info pc))
1103 (setq cn (mime::get-point-content-number
1104 (mime::content-info/point-min cinfo)))
1106 (mime-viewer/quit the-buf
1107 (mime::preview-content-info/buffer pc)
1109 (setq r (mime-article/cnum-to-cinfo (butlast cn)))
1110 (switch-to-buffer the-buf)
1112 (let ((rpcl mime::preview/content-list) cell)
1114 (setq cell (car rpcl))
1115 (if (eq r (mime::preview-content-info/content-info cell))
1117 (goto-char (mime::preview-content-info/point-min cell))
1120 (setq rpcl (cdr rpcl))
1124 (defun mime-viewer/previous-content ()
1126 (let* ((pcl mime::preview/content-list)
1128 (i (- (length pcl) 1))
1132 (setq beg (mime::preview-content-info/point-min (nth i pcl)))
1134 (throw 'tag (goto-char beg))
1140 (defun mime-viewer/next-content ()
1142 (let ((pcl mime::preview/content-list)
1147 (setq beg (mime::preview-content-info/point-min (car pcl)))
1149 (throw 'tag (goto-char beg))
1151 (setq pcl (cdr pcl))
1155 (defun mime-viewer/scroll-up-content (&optional h)
1158 (setq h (- (window-height) 1))
1160 (let ((pcl mime::preview/content-list)
1166 (setq beg (mime::preview-content-info/point-min (car pcl)))
1170 (setq pcl (cdr pcl))
1180 (defun mime-viewer/scroll-down-content (&optional h)
1183 (setq h (- (window-height) 1))
1185 (let ((pcl mime::preview/content-list)
1189 (or (let ((i (- (length pcl) 1)))
1192 (setq beg (mime::preview-content-info/point-min
1200 (forward-line (- h))
1205 (defun mime-viewer/next-line-content ()
1207 (mime-viewer/scroll-up-content 1)
1210 (defun mime-viewer/previous-line-content ()
1212 (mime-viewer/scroll-down-content 1)
1215 (defun mime-viewer/quit (&optional the-buf buf)
1218 (setq the-buf (current-buffer))
1221 (setq buf (mime::preview-content-info/buffer
1222 (mime::point-preview-content (point))))
1225 (switch-to-buffer buf)
1226 (assoc major-mode mime-viewer/quitting-method-alist)
1230 (switch-to-buffer the-buf)
1235 (defun mime-viewer/kill-buffer ()
1237 (kill-buffer (current-buffer))
1246 (run-hooks 'tm-view-load-hook)