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 6.83 1995/09/20 14:19:42 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" "X-Face"))
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 (if (and (>= emacs-major-version 19) window-system)
118 \[[ This is message/partial style split message. ]]
119 \[[ Please press `v' key in this buffer ]]
120 \[[ or click here by mouse button-2. ]]"
122 \[[ This is message/partial style split message. ]]
123 \[[ Please press `v' key in this buffer. ]]"
127 ;;; @@ predicate functions
130 (defun mime-viewer/header-visible-p (cnum cinfo &optional ctype)
134 (mime::content-info/type
135 (mime-article/cnum-to-cinfo (butlast cnum) cinfo)
137 (member ctype mime-viewer/childrens-header-showing-Content-Type-list)
140 (defun mime-viewer/body-visible-p (cnum cinfo &optional ctype)
144 (mime::content-info/type
145 (setq ccinfo (mime-article/cnum-to-cinfo cnum cinfo))
148 (and (member ctype mime-viewer/default-showing-Content-Type-list)
149 (if (string-equal ctype "application/octet-stream")
152 (setq ccinfo (mime-article/cnum-to-cinfo cnum cinfo))
154 (member (mime::content-info/encoding ccinfo)
155 '(nil "7bit" "8bit"))
161 ;;; @@ content subject
164 (defun mime-viewer/insert-content-subject
165 (cnum cinfo ctype params subj)
167 (let ((access-type (assoc "access-type" params))
168 (num (or (assoc-value "x-part-number" params)
172 (format "%s" (+ num 1))
178 (let ((server (assoc "server" params)))
179 (setq access-type (cdr access-type))
181 (format "[%s %s ([%s] %s)]\n" num subj
182 access-type (cdr server))
183 (let ((site (assoc-value "site" params))
184 (dir (assoc-value "directory" params))
186 (format "[%s %s ([%s] %s:%s)]\n" num subj
187 access-type site dir)
189 (format "[%s %s (%s)]\n" num subj ctype)
192 (defun mime-viewer/default-content-subject-function
193 (cnum cinfo ctype params subj)
194 (if (and (listp cnum)
197 mime-viewer/content-subject-omitting-Content-Type-list))
199 (mime-viewer/insert-content-subject
200 cnum cinfo ctype params subj)
203 (defvar mime-viewer/content-subject-function
204 (function mime-viewer/default-content-subject-function))
207 ;;; @@ content header filter
213 ;; hack from Gnus 5.0.4.
215 (defvar mime-viewer/x-face-command
216 "{ echo '/* Width=48, Height=48 */'; uncompface; } | icontopbm | xv -quit -"
217 "String to be executed to display an X-Face field.
218 The command will be executed in a sub-shell asynchronously.
219 The compressed face will be piped to this command.")
221 (defun mime-viewer/x-face-function ()
222 "Function to display X-Face field. You can redefine to customize."
223 (goto-char (point-min))
224 (if (re-search-forward "^X-Face:[ \t]*" nil t)
225 (let ((beg (match-end 0))
226 (end (message/field-end))
228 (call-process-region beg end "sh" nil 0 nil
229 "-c" mime-viewer/x-face-command)
232 (defun mime-viewer/default-content-header-filter ()
233 (mime-viewer/x-face-function)
234 (goto-char (point-min))
235 (while (and (re-search-forward
236 (concat "^" mime-viewer/ignored-field-regexp ":")
243 (re-search-forward "^\\([^ \t]\\|$\\)" nil t)
247 (mime/decode-message-header)
250 (defvar mime-viewer/content-header-filter-alist nil)
253 ;;; @@ content filter
256 (defvar mime-viewer/content-filter-alist
257 '(("text/plain" . mime-viewer/filter-text/plain)
258 (nil . mime-viewer/filter-text/plain)))
260 (defun mime-viewer/default-content-filter (cnum cinfo ctype params subj)
264 ;;; @@ content separator
267 (defun mime-viewer/default-content-separator (cnum cinfo ctype params subj)
268 (if (and (not (mime-viewer/header-visible-p cnum cinfo ctype))
269 (not (mime-viewer/body-visible-p cnum cinfo ctype))
272 (goto-char (point-max))
277 ;;; @@ buffer local variables
280 (defvar mime::article/content-info nil)
281 (defvar mime::article/preview-buffer nil)
283 (defvar mime::preview/article-buffer nil)
284 (defvar mime::preview/content-list nil)
285 (defvar mime::preview/original-major-mode nil)
288 ;;; @@ quitting method
291 (defvar mime-viewer/quitting-method-alist
292 '((mime/show-message-mode
294 (set-window-configuration
295 mime/show-mode-old-window-configuration)
296 (let ((mother mime/mother-buffer))
298 (mime::preview-content-info/buffer
299 (car mime::preview/content-list)))
300 (mime-viewer/kill-buffer)
301 (pop-to-buffer mother)
302 (goto-char (point-min))
303 (mime-viewer/up-content)
308 ;;; @ data structures
313 (define-structure mime::content-info
314 point-min point-max type parameters encoding children)
316 ;;; @@ preview-content-info
318 (define-structure mime::preview-content-info
319 point-min point-max buffer content-info)
325 (defun mime-viewer/parse-message (&optional ctl encoding)
326 (make-variable-buffer-local 'mime::article/content-info)
327 (setq mime::article/content-info (mime-viewer/parse ctl encoding))
328 (let ((ret (mime-viewer/make-preview-buffer)))
329 (make-variable-buffer-local 'mime::article/preview-buffer)
330 (setq mime::article/preview-buffer (car ret))
333 (defun mime-viewer/parse (&optional ctl encoding)
336 (setq ctl (or (mime/Content-Type)
338 (setq encoding (or (mime/Content-Transfer-Encoding)
340 (let ((ctype (car ctl))
343 (let ((boundary (assoc "boundary" params)))
344 (goto-char (point-min))
345 (search-forward "\n\n" nil t)
350 (message/strip-quoted-string (cdr boundary)))
353 (if (re-search-forward
354 (concat "^--" (regexp-quote boundary) "--$") nil t)
358 (mime-viewer/parse-multipart
361 boundary ctype params encoding)
363 ((string= ctype "message/rfc822")
364 (mime::content-info/create
365 (point-min) (point-max)
366 ctype params encoding
369 (narrow-to-region (progn
370 (goto-char (point-min))
371 (if (re-search-forward "^$" nil t)
376 (list (mime-viewer/parse))
381 (mime::content-info/create (point-min) (point-max)
382 ctype params encoding nil)
386 (defun mime-viewer/parse-multipart (beg end boundary ctype params encoding)
387 (let ((sep (concat "^--" (regexp-quote boundary) "$"))
388 cb ce ct ret ncb children)
391 (narrow-to-region beg end)
392 (goto-char (point-min))
393 (search-forward (concat "--" boundary "\n") nil t)
394 (setq cb (match-end 0))
395 (while (re-search-forward sep nil t)
396 (setq ce (match-beginning 0))
397 (setq ncb (match-end 0))
400 (narrow-to-region cb ce)
401 (setq ret (apply (function mime-viewer/parse)
402 (cond ((string= ctype "multipart/digest")
403 '(("message/rfc822") "7bit")
405 (t '(("text/plain") "7bit"))
409 (setq children (nconc children (list ret)))
410 (goto-char (mime::content-info/point-max ret))
411 (search-forward (concat "--" boundary "\n") nil t)
412 (goto-char (setq cb (match-end 0)))
414 (setq ce (point-max))
417 (narrow-to-region cb ce)
418 (setq ret (apply (function mime-viewer/parse)
419 (cond ((string= ctype "multipart/mixed")
420 '(("text/plain") "7bit")
422 ((string= ctype "multipart/digest")
423 '(("message/rfc822") "7bit")
427 (setq children (nconc children (list ret)))
429 (setq beg (point-min))
431 (mime::content-info/create beg end ctype params encoding children)
434 (defun mime::parse-parameter (str)
435 (let ((ret (message::parse "\;" str)))
438 (message::parse mime/token-regexp
439 (message::parsed/rest ret)))
440 (let ((parameter (downcase (message::parsed/matched ret))))
441 (if (setq ret (message::parse "=" (message::parsed/rest ret)))
444 mime/content-parameter-value-regexp
445 (message::parsed/rest ret)))
446 (message::make-parsed
448 (message/strip-quoted-string
449 (message::parsed/matched ret))
451 (message::parsed/rest ret)
455 (defun mime::parse-field-body/Content-Type (str)
456 (let ((ret (message::parse mime/content-type-subtype-regexp str)))
458 (let ((ctype (downcase (message::parsed/matched ret)))
461 (setq str (message::parsed/rest ret))
462 (setq ret (mime::parse-parameter str))
464 (setq dest (cons (message::parsed/matched ret) dest))
466 (if (string-match "^[ \t]*$" str)
467 (cons ctype (reverse dest))
470 (defun mime/Content-Type (&optional port)
471 "Read field-body of Content-Type field from PORT and parse it.
472 PORT must be buffer or string. If PORT is omitted,
473 it is regarded as current-buffer. [tm-view]"
475 (setq port (current-buffer))
477 (let ((str (if (get-buffer port)
478 (save-window-excursion
479 (switch-to-buffer port)
480 (message/get-field-body "Content-Type")
485 (mime::parse-field-body/Content-Type
486 (message/unfolding-string str))
489 (defun mime/Content-Transfer-Encoding (&optional default-encoding)
490 (let ((str (message/get-field-body "Content-Transfer-Encoding")))
496 (defun mime-viewer/get-subject (param)
497 (if (member (cdr (assq 'encoding param))
498 mime-viewer/uuencode-encoding-name-list)
500 (or (if (re-search-forward "^begin [0-9]+ " nil t)
501 (if (looking-at ".+$")
502 (buffer-substring (match-beginning 0)(match-end 0))
506 (or (and (setq ret (assoc "name" param))
507 (message/strip-quoted-string (cdr ret))
509 (and (setq ret (assoc "x-name" param))
510 (message/strip-quoted-string (cdr ret))
515 (narrow-to-region (point-min)
516 (or (and (search-forward "\n\n" nil t)
521 (message/get-field-body "Content-Description")
522 (message/get-field-body "Subject")
527 (defun mime-viewer/get-name (param)
528 (let ((str (mime-viewer/get-subject param)))
529 (if (string-match " " str)
530 (if (or (string-match mime-viewer/file-name-regexp-1 str)
531 (string-match mime-viewer/file-name-regexp-2 str))
532 (substring str (match-beginning 0)(match-end 0))
534 (replace-as-filename str)
537 (defun mime-viewer/make-preview-buffer (&optional buf cinfo obuf)
538 (let ((the-buf (current-buffer))
546 (switch-to-buffer buf)
549 (setq cinfo mime::article/content-info)
552 (setq obuf (concat "*Preview-" (buffer-name buf) "*"))
554 (setq pcl (mime::make-flat-content-list cinfo))
555 (let ((bf (get-buffer obuf)))
556 (switch-to-buffer obuf)
557 (setq buffer-read-only nil)
561 (make-variable-buffer-local 'mime::preview/article-buffer)
562 (setq mime::preview/article-buffer the-buf)
563 (make-variable-buffer-local 'mime::preview/original-major-mode)
564 (setq mime::preview/original-major-mode mode)
565 (setq major-mode 'mime/viewer-mode)
566 (setq mode-name "MIME-View")
571 (let ((beg (mime::content-info/point-min cell))
572 (end (mime::content-info/point-max cell))
573 (ctype (mime::content-info/type cell))
574 (params (mime::content-info/parameters cell))
575 (encoding (mime::content-info/encoding cell))
576 he cnum e nb ne subj str)
577 (setq cnum (mime::get-point-content-number beg cinfo))
578 (switch-to-buffer the-buf)
579 (setq he (save-excursion
581 (re-search-forward "^$" nil t)
584 (if (> he (point-max))
585 (setq he (point-max))
589 (narrow-to-region beg he)
590 (setq subj (mime-viewer/get-subject params))
592 (switch-to-buffer obuf)
594 (narrow-to-region nb nb)
595 (switch-to-buffer the-buf)
596 (if (mime-viewer/header-visible-p cnum cinfo ctype)
598 (setq str (buffer-substring beg he))
599 (switch-to-buffer obuf)
603 mime-viewer/content-header-filter-alist))
605 (if (and f (setq f (cdr f)))
607 (mime-viewer/default-content-header-filter)
609 (run-hooks 'mime-viewer/content-header-filter-hook)
610 (switch-to-buffer the-buf)
612 (cond ((mime-viewer/body-visible-p cnum cinfo ctype)
614 (setq str (buffer-substring he end))
615 (switch-to-buffer obuf)
617 (setq be (point-max))
618 (narrow-to-region be be)
620 (setq ne (point-max))
621 (let ((f (or (assoc-value
623 mime-viewer/content-filter-alist)
625 (if (and f (fboundp f))
626 (funcall f ctype params encoding)
627 (mime-viewer/default-content-filter
628 cnum cinfo ctype params subj)
630 (setq ne (point-max))
632 (switch-to-buffer the-buf)
634 ((equal ctype "message/partial")
636 (switch-to-buffer obuf)
638 (goto-char (point-max))
639 (if (not (search-backward "\n\n" nil t))
642 (setq be (point-max))
643 (narrow-to-region be be)
645 mime-viewer/announcement-for-message/partial)
646 (setq ne (point-max))
648 (switch-to-buffer the-buf)
651 (null (mime::content-info/children cinfo))
654 (switch-to-buffer obuf)
656 (setq be (point-max))
657 (narrow-to-region be be)
658 (mime-viewer/insert-content-subject
659 cnum cinfo ctype params subj)
660 (setq ne (point-max))
662 (switch-to-buffer the-buf)
665 (switch-to-buffer obuf)
666 (mime-viewer/default-content-separator
667 cnum cinfo ctype params subj)
671 (funcall mime-viewer/content-subject-function
672 cnum cinfo ctype params subj)
673 (setq ne (point-max))
675 (mime::preview-content-info/create nb (- ne 1)
681 (set-buffer-modified-p nil)
682 (setq buffer-read-only t)
683 (switch-to-buffer the-buf)
688 ;;; @ content information
691 (defun mime::get-point-content-number (p &optional cinfo)
693 (setq cinfo mime::article/content-info)
695 (let ((b (mime::content-info/point-min cinfo))
696 (e (mime::content-info/point-max cinfo))
697 (c (mime::content-info/children cinfo))
699 (if (and (<= b p)(<= p e))
700 (or (let (co ret (sn 0))
704 (setq ret (mime::get-point-content-number p co))
705 (cond ((eq ret t) (throw 'tag (list sn)))
706 (ret (throw 'tag (cons sn ret)))
713 (defun mime-article/cnum-to-cinfo (cn &optional cinfo)
715 (setq cinfo mime::article/content-info)
722 (let ((rc (nth sn (mime::content-info/children cinfo))))
724 (mime-article/cnum-to-cinfo (cdr cn) rc)
728 (defun mime::make-flat-content-list (&optional cinfo)
730 (setq cinfo mime::article/content-info)
732 (let ((dest (list cinfo))
733 (rcl (mime::content-info/children cinfo))
736 (setq dest (nconc dest (mime::make-flat-content-list (car rcl))))
741 (defun mime::point-preview-content (p &optional pcl)
743 (setq pcl mime::preview/content-list)
749 (if (and (<= (mime::preview-content-info/point-min cell) p)
750 (<= p (mime::preview-content-info/point-max cell))
763 (defun mime/make-method-args (cal format)
768 (let ((ret (cdr (assoc (eval arg) cal))))
776 (defun mime/start-external-method-region (beg end cal)
779 (narrow-to-region beg end)
781 (let ((method (cdr (assoc 'method cal)))
782 (name (mime-viewer/get-name cal))
785 (let ((file (make-temp-name
786 (expand-file-name "TM" mime/tmp-dir)))
791 (if (re-search-forward "^$" nil t)
797 (write-region b end file)
799 'name (replace-as-filename name) cal))
800 (setq cal (put-alist 'file file cal))
803 mime/output-buffer-name (car method)
805 (mime/make-method-args cal (cdr (cdr method)))
807 (apply (function start-process) args)
808 (mime/show-output-buffer)
812 (defun mime/decode-message/partial-region (beg end cal)
814 (let* ((root-dir (expand-file-name
815 (concat "m-prts-" (user-login-name)) mime/tmp-dir))
816 (id (cdr (assoc "id" cal)))
817 (number (cdr (assoc "number" cal)))
818 (total (cdr (assoc "total" cal)))
819 (the-buf (current-buffer))
821 (mother mime::article/preview-buffer))
822 (if (not (file-exists-p root-dir))
823 (make-directory root-dir)
825 (setq id (replace-as-filename id))
826 (setq root-dir (concat root-dir "/" id))
827 (if (not (file-exists-p root-dir))
828 (make-directory root-dir)
830 (setq file (concat root-dir "/FULL"))
831 (if (not (file-exists-p file))
833 (re-search-forward "^$")
834 (goto-char (+ (match-end 0) 1))
835 (setq file (concat root-dir "/" number))
836 (write-region (point) (point-max) file)
837 (if (get-buffer "*MIME-temp*")
838 (kill-buffer "*MIME-temp*")
840 (switch-to-buffer "*MIME-temp*")
842 (max (string-to-int total))
846 (setq file (concat root-dir "/" (int-to-string i)))
847 (if (not (file-exists-p file))
849 (switch-to-buffer the-buf)
852 (insert-file-contents file)
853 (goto-char (point-max))
856 (delete-other-windows)
857 (write-file (concat root-dir "/FULL"))
858 (setq major-mode 'mime/show-message-mode)
859 (mime/viewer-mode mother)
860 (pop-to-buffer (current-buffer))
864 (delete-other-windows)
866 (setq major-mode 'mime/show-message-mode)
867 (mime/viewer-mode mother)
868 (pop-to-buffer (current-buffer))
872 (defun mime/get-content-decoding-alist (al)
873 (get-unified-alist mime/content-decoding-condition al)
876 (defun mime::article/decode-content-region (cinfo)
877 (let ((beg (mime::content-info/point-min cinfo))
878 (end (mime::content-info/point-max cinfo))
879 (ctype (mime::content-info/type cinfo))
880 (params (mime::content-info/parameters cinfo))
881 (encoding (mime::content-info/encoding cinfo))
884 (let (method cal ret)
885 (setq cal (append (list (cons 'type ctype)
886 (cons 'encoding encoding)
887 (cons 'major-mode major-mode)
890 (if mime-viewer/decoding-mode
892 (cons 'mode mime-viewer/decoding-mode)
895 (setq ret (mime/get-content-decoding-alist cal))
896 (setq method (cdr (assoc 'method ret)))
897 (cond ((and (symbolp method)
899 (funcall method beg end ret)
901 ((and (listp method)(stringp (car method)))
902 (mime/start-external-method-region beg end ret)
904 (t (mime/show-output-buffer
905 "No method are specified for %s\n" ctype)
910 (defun mime/show-output-buffer (&rest forms)
911 (let ((the-buf (current-buffer)))
912 (if (null (get-buffer-window mime/output-buffer-name))
913 (split-window-vertically (/ (* (window-height) 3) 4))
915 (pop-to-buffer mime/output-buffer-name)
916 (goto-char (point-max))
918 (insert (apply (function format) forms))
920 (pop-to-buffer the-buf)
927 (defvar mime-viewer/code-converter-alist nil)
929 (defun mime-viewer/default-code-convert-region
930 (beg end charset &optional encoding)
931 (if (member encoding '("quoted-printable" "base64"))
932 (mime/code-convert-region-to-emacs beg (point-max) charset)
935 (defun mime-viewer/filter-text/plain (ctype params encoding)
936 (let ((charset (cdr (assoc "charset" params)))
937 (beg (point-min)) (end (point-max))
939 (goto-char (point-min))
940 (cond ((string= encoding "quoted-printable")
941 (quoted-printable-decode-region beg end)
943 ((string= encoding "base64")
944 (base64-decode-region beg end)
946 (let* ((mode mime::preview/original-major-mode)
947 (m (assq mode mime-viewer/code-converter-alist))
949 (if (and m (fboundp (setq m (cdr m))))
950 (funcall m beg (point-max) charset encoding)
951 (mime-viewer/default-code-convert-region beg (point-max)
954 (goto-char (point-max))
955 (if (not (eq (char-after (1- (point))) ?\n))
959 (run-hooks 'mime-viewer/plain-text-preview-hook)
963 ;;; @ MIME viewer mode
966 (defvar mime/viewer-mode-map nil)
967 (if (null mime/viewer-mode-map)
969 (setq mime/viewer-mode-map (make-keymap))
970 (suppress-keymap mime/viewer-mode-map)
971 (define-key mime/viewer-mode-map
972 "u" (function mime-viewer/up-content))
973 (define-key mime/viewer-mode-map
974 "p" (function mime-viewer/previous-content))
975 (define-key mime/viewer-mode-map
976 "n" (function mime-viewer/next-content))
977 (define-key mime/viewer-mode-map
978 " " (function mime-viewer/scroll-up-content))
979 (define-key mime/viewer-mode-map
980 "\M- " (function mime-viewer/scroll-down-content))
981 (define-key mime/viewer-mode-map
982 "\177" (function mime-viewer/scroll-down-content))
983 (define-key mime/viewer-mode-map
984 "\C-m" (function mime-viewer/next-line-content))
985 (define-key mime/viewer-mode-map
986 "\C-\M-m" (function mime-viewer/previous-line-content))
987 (define-key mime/viewer-mode-map
988 "v" (function mime-viewer/play-content))
989 (define-key mime/viewer-mode-map
990 "e" (function mime-viewer/extract-content))
991 (define-key mime/viewer-mode-map
992 "\C-c\C-p" (function mime-viewer/print-content))
993 (define-key mime/viewer-mode-map
994 "q" (function mime-viewer/quit))
995 (define-key mime/viewer-mode-map
996 "\C-c\C-x" (function mime-viewer/kill-buffer))
997 (cond ((string-match "XEmacs\\|Lucid" emacs-version)
998 (define-key mime/viewer-mode-map
999 'button2 (function mime-viewer/play-content-mouse))
1001 ((>= emacs-major-version 19)
1002 (define-key mime/viewer-mode-map
1003 [mouse-2] (function mime-viewer/play-content-mouse))
1007 (defun mime/viewer-mode (&optional mother ctl encoding)
1008 "Major mode for viewing MIME message.
1010 Here is a list of the standard keys for mime/viewer-mode.
1015 u Move to upper content
1016 p Move to previous content
1017 n Move to next content
1018 SPC Scroll up or move to next content
1019 M-SPC Scroll down or move to previous content
1020 DEL Scroll down or move to previous content
1021 RET Move to next line
1022 M-RET Move to previous line
1023 v Decode current content as `play mode'
1024 e Decode current content as `extract mode'
1025 C-c C-p Decode current content as `print mode'
1027 button-2 Move to point under the mouse cursor
1028 and decode current content as `play mode'
1031 Here are all the commands with their current binding,
1032 listed in key order:
1034 \\{mime/viewer-mode-map}
1037 (setq mime-viewer/ignored-field-regexp
1039 (mapconcat (function regexp-quote)
1040 mime-viewer/ignored-field-list "\\|")
1042 (let ((buf (get-buffer mime/output-buffer-name))
1043 (the-buf (current-buffer))
1047 (switch-to-buffer buf)
1049 (switch-to-buffer the-buf)
1051 (let ((ret (mime-viewer/parse-message ctl encoding)))
1053 (switch-to-buffer (car ret))
1056 (make-variable-buffer-local
1057 'mime/show-mode-old-window-configuration)
1058 (setq mime/show-mode-old-window-configuration
1059 (current-window-configuration))
1060 (make-variable-buffer-local 'mime/mother-buffer)
1061 (setq mime/mother-buffer mother)
1063 (use-local-map mime/viewer-mode-map)
1064 (make-variable-buffer-local 'mime::preview/content-list)
1065 (setq mime::preview/content-list (nth 1 ret))
1067 (let ((ce (mime::preview-content-info/point-max
1068 (car mime::preview/content-list)
1071 (goto-char (point-min))
1072 (search-forward "\n\n" nil t)
1073 (setq e (match-end 0))
1077 (run-hooks 'mime/viewer-mode-hook)
1080 (defun mime-preview/point-content-number (point)
1081 (save-window-excursion
1082 (let ((pc (mime::point-preview-content (point)))
1084 (switch-to-buffer (mime::preview-content-info/buffer pc))
1085 (setq cinfo (mime::preview-content-info/content-info pc))
1086 (mime::get-point-content-number (mime::content-info/point-min cinfo))
1089 (defun mime-preview/cinfo-to-pcinfo (cinfo)
1090 (let ((rpcl mime::preview/content-list) cell)
1093 (setq cell (car rpcl))
1094 (if (eq cinfo (mime::preview-content-info/content-info cell))
1097 (setq rpcl (cdr rpcl))
1100 (defvar mime-preview/after-decoded-position nil)
1102 (defun mime-preview/decode-content ()
1104 (let ((pc (mime::point-preview-content (point))))
1106 (let ((the-buf (current-buffer)))
1107 (setq mime-preview/after-decoded-position (point))
1108 (switch-to-buffer (mime::preview-content-info/buffer pc))
1109 (mime::article/decode-content-region
1110 (mime::preview-content-info/content-info pc))
1111 (if (eq (current-buffer)
1112 (mime::preview-content-info/buffer pc))
1114 (switch-to-buffer the-buf)
1115 (goto-char mime-preview/after-decoded-position)
1119 (defun mime-viewer/play-content ()
1121 (let ((mime-viewer/decoding-mode "play"))
1122 (mime-preview/decode-content)
1125 (defun mime-viewer/play-content-mouse (e)
1128 (mime-viewer/play-content)
1131 (defun mime-viewer/extract-content ()
1133 (let ((mime-viewer/decoding-mode "extract"))
1134 (mime-preview/decode-content)
1137 (defun mime-viewer/print-content ()
1139 (let ((mime-viewer/decoding-mode "print"))
1140 (mime-preview/decode-content)
1143 (defun mime-viewer/up-content ()
1145 (let ((pc (mime::point-preview-content (point))) cinfo
1146 (the-buf (current-buffer))
1148 (switch-to-buffer (mime::preview-content-info/buffer pc))
1149 (setq cinfo (mime::preview-content-info/content-info pc))
1150 (setq cn (mime::get-point-content-number
1151 (mime::content-info/point-min cinfo)))
1153 (mime-viewer/quit the-buf
1154 (mime::preview-content-info/buffer pc)
1156 (setq r (mime-article/cnum-to-cinfo (butlast cn)))
1157 (switch-to-buffer the-buf)
1159 (let ((rpcl mime::preview/content-list) cell)
1161 (setq cell (car rpcl))
1162 (if (eq r (mime::preview-content-info/content-info cell))
1164 (goto-char (mime::preview-content-info/point-min cell))
1167 (setq rpcl (cdr rpcl))
1171 (defun mime-viewer/previous-content ()
1173 (let* ((pcl mime::preview/content-list)
1175 (i (- (length pcl) 1))
1179 (setq beg (mime::preview-content-info/point-min (nth i pcl)))
1181 (throw 'tag (goto-char beg))
1187 (defun mime-viewer/next-content ()
1189 (let ((pcl mime::preview/content-list)
1194 (setq beg (mime::preview-content-info/point-min (car pcl)))
1196 (throw 'tag (goto-char beg))
1198 (setq pcl (cdr pcl))
1202 (defun mime-viewer/scroll-up-content (&optional h)
1205 (setq h (- (window-height) 1))
1207 (let ((pcl mime::preview/content-list)
1213 (setq beg (mime::preview-content-info/point-min (car pcl)))
1217 (setq pcl (cdr pcl))
1227 (defun mime-viewer/scroll-down-content (&optional h)
1230 (setq h (- (window-height) 1))
1232 (let ((pcl mime::preview/content-list)
1236 (or (let ((i (- (length pcl) 1)))
1239 (setq beg (mime::preview-content-info/point-min
1247 (forward-line (- h))
1252 (defun mime-viewer/next-line-content ()
1254 (mime-viewer/scroll-up-content 1)
1257 (defun mime-viewer/previous-line-content ()
1259 (mime-viewer/scroll-down-content 1)
1262 (defun mime-viewer/quit (&optional the-buf buf)
1265 (setq the-buf (current-buffer))
1268 (setq buf (mime::preview-content-info/buffer
1269 (mime::point-preview-content (point))))
1272 (switch-to-buffer buf)
1273 (assoc major-mode mime-viewer/quitting-method-alist)
1277 (switch-to-buffer the-buf)
1282 (defun mime-viewer/kill-buffer ()
1284 (kill-buffer (current-buffer))
1293 (run-hooks 'tm-view-load-hook)