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 6.77 1995/09/04 00:48:30 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)
261 (defun mime-viewer/quitting-method-for-gnus4 ()
262 (mime-viewer/kill-buffer)
263 (delete-other-windows)
264 (gnus-article-show-summary)
265 (if (null gnus-have-all-headers)
266 (gnus-summary-select-article nil t)
269 (defvar mime-viewer/quitting-method-alist
270 '((gnus-article-mode . mime-viewer/quitting-method-for-gnus4)
271 (mime/show-message-mode
273 (set-window-configuration
274 mime/show-mode-old-window-configuration)
275 (let ((mother mime/mother-buffer))
277 (mime::preview-content-info/buffer
278 (car mime::preview/content-list)))
279 (mime-viewer/kill-buffer)
280 (pop-to-buffer mother)
281 (goto-char (point-min))
282 (mime-viewer/up-content)
287 ;;; @ data structures
292 (define-structure mime::content-info
293 point-min point-max type parameters encoding children)
295 ;;; @@ preview-content-info
297 (define-structure mime::preview-content-info
298 point-min point-max buffer content-info)
304 (defun mime-viewer/parse-message (&optional ctl encoding)
305 (make-variable-buffer-local 'mime::article/content-info)
306 (setq mime::article/content-info (mime-viewer/parse ctl encoding))
307 (let ((ret (mime-viewer/make-preview-buffer)))
308 (make-variable-buffer-local 'mime::article/preview-buffer)
309 (setq mime::article/preview-buffer (car ret))
312 (defun mime-viewer/parse (&optional ctl encoding)
315 (setq ctl (or (mime/Content-Type)
317 (setq encoding (or (mime/Content-Transfer-Encoding)
319 (let ((ctype (car ctl))
322 (let ((boundary (assoc "boundary" params)))
323 (goto-char (point-min))
324 (search-forward "\n\n" nil t)
329 (message/strip-quoted-string (cdr boundary)))
332 (if (re-search-forward
333 (concat "^--" (regexp-quote boundary) "--$") nil t)
337 (mime-viewer/parse-multipart
340 boundary ctype params encoding)
342 ((string= ctype "message/rfc822")
343 (mime::content-info/create
344 (point-min) (point-max)
345 ctype params encoding
348 (narrow-to-region (progn
349 (goto-char (point-min))
350 (if (re-search-forward "^$" nil t)
355 (list (mime-viewer/parse))
360 (mime::content-info/create (point-min) (point-max)
361 ctype params encoding nil)
365 (defun mime-viewer/parse-multipart (beg end boundary ctype params encoding)
366 (let ((sep (concat "^--" (regexp-quote boundary) "$"))
367 cb ce ct ret ncb children)
370 (narrow-to-region beg end)
371 (goto-char (point-min))
372 (search-forward (concat "--" boundary "\n") nil t)
373 (setq cb (match-end 0))
374 (while (re-search-forward sep nil t)
375 (setq ce (match-beginning 0))
376 (setq ncb (match-end 0))
379 (narrow-to-region cb ce)
380 (setq ret (apply (function mime-viewer/parse)
381 (cond ((string= ctype "multipart/digest")
382 '(("message/rfc822") "7bit")
384 (t '(("text/plain") "7bit"))
388 (setq children (nconc children (list ret)))
389 (goto-char (mime::content-info/point-max ret))
390 (search-forward (concat "--" boundary "\n") nil t)
391 (goto-char (setq cb (match-end 0)))
393 (setq ce (point-max))
396 (narrow-to-region cb ce)
397 (setq ret (apply (function mime-viewer/parse)
398 (cond ((string= ctype "multipart/mixed")
399 '(("text/plain") "7bit")
401 ((string= ctype "multipart/digest")
402 '(("message/rfc822") "7bit")
406 (setq children (nconc children (list ret)))
408 (setq beg (point-min))
410 (mime::content-info/create beg end ctype params encoding children)
413 (defun mime::parse-parameter (str)
414 (let ((ret (message::parse "\;" str)))
417 (message::parse mime/token-regexp
418 (message::parsed/rest ret)))
419 (let ((parameter (downcase (message::parsed/matched ret))))
420 (if (setq ret (message::parse "=" (message::parsed/rest ret)))
423 mime/content-parameter-value-regexp
424 (message::parsed/rest ret)))
425 (message::make-parsed
427 (message/strip-quoted-string
428 (message::parsed/matched ret))
430 (message::parsed/rest ret)
434 (defun mime::parse-field-body/Content-Type (str)
435 (let ((ret (message::parse mime/content-type-subtype-regexp str)))
437 (let ((ctype (downcase (message::parsed/matched ret)))
440 (setq str (message::parsed/rest ret))
441 (setq ret (mime::parse-parameter str))
443 (setq dest (cons (message::parsed/matched ret) dest))
445 (if (string-match "^[ \t]*$" str)
446 (cons ctype (reverse dest))
449 (defun mime/Content-Type (&optional port)
450 "Read field-body of Content-Type field from PORT and parse it.
451 PORT must be buffer or string. If PORT is omitted,
452 it is regarded as current-buffer. [tm-view]"
454 (setq port (current-buffer))
456 (let ((str (if (get-buffer port)
457 (save-window-excursion
458 (switch-to-buffer port)
459 (message/get-field-body "Content-Type")
464 (mime::parse-field-body/Content-Type
465 (message/unfolding-string str))
468 (defun mime/Content-Transfer-Encoding (&optional default-encoding)
469 (let ((str (message/get-field-body "Content-Transfer-Encoding")))
475 (defun mime-viewer/get-subject (param)
476 (if (member (cdr (assq 'encoding param))
477 mime-viewer/uuencode-encoding-name-list)
479 (or (if (re-search-forward "^begin [0-9]+ " nil t)
480 (if (looking-at ".+$")
481 (buffer-substring (match-beginning 0)(match-end 0))
485 (or (and (setq ret (assoc "name" param))
486 (message/strip-quoted-string (cdr ret))
488 (and (setq ret (assoc "x-name" param))
489 (message/strip-quoted-string (cdr ret))
494 (narrow-to-region (point-min)
495 (or (and (search-forward "\n\n" nil t)
500 (message/get-field-body "Content-Description")
501 (message/get-field-body "Subject")
506 (defun mime-viewer/get-name (param)
507 (let ((str (mime-viewer/get-subject param)))
508 (if (string-match " " str)
509 (if (or (string-match mime-viewer/file-name-regexp-1 str)
510 (string-match mime-viewer/file-name-regexp-2 str))
511 (substring str (match-beginning 0)(match-end 0))
513 (replace-as-filename str)
516 (defun mime-viewer/make-preview-buffer (&optional buf cinfo obuf)
517 (let ((the-buf (current-buffer))
525 (switch-to-buffer buf)
528 (setq cinfo mime::article/content-info)
531 (setq obuf (concat "*Preview-" (buffer-name buf) "*"))
533 (setq pcl (mime::make-flat-content-list cinfo))
534 (let ((bf (get-buffer obuf)))
535 (switch-to-buffer obuf)
536 (setq buffer-read-only nil)
540 (make-variable-buffer-local 'mime::preview/article-buffer)
541 (setq mime::preview/article-buffer the-buf)
542 (make-variable-buffer-local 'mime::preview/original-major-mode)
543 (setq mime::preview/original-major-mode mode)
544 (setq major-mode 'mime/viewer-mode)
545 (setq mode-name "MIME-View")
550 (let ((beg (mime::content-info/point-min cell))
551 (end (mime::content-info/point-max cell))
552 (ctype (mime::content-info/type cell))
553 (params (mime::content-info/parameters cell))
554 (encoding (mime::content-info/encoding cell))
555 he cnum e nb ne subj str)
556 (setq cnum (mime::get-point-content-number beg cinfo))
557 (switch-to-buffer the-buf)
558 (setq he (save-excursion
560 (re-search-forward "^$" nil t)
563 (if (> he (point-max))
564 (setq he (point-max))
568 (narrow-to-region beg he)
569 (setq subj (mime-viewer/get-subject params))
571 (switch-to-buffer obuf)
573 (narrow-to-region nb nb)
574 (switch-to-buffer the-buf)
575 (if (mime-viewer/header-visible-p cnum cinfo ctype)
577 (setq str (buffer-substring beg he))
578 (switch-to-buffer obuf)
582 mime-viewer/content-header-filter-alist))
584 (if (and f (setq f (cdr f)))
586 (mime-viewer/default-content-header-filter)
588 (run-hooks 'mime-viewer/content-header-filter-hook)
589 (switch-to-buffer the-buf)
591 (cond ((mime-viewer/body-visible-p cnum cinfo ctype)
593 (setq str (buffer-substring he end))
594 (switch-to-buffer obuf)
596 (setq be (point-max))
597 (narrow-to-region be be)
599 (setq ne (point-max))
600 (let ((f (or (assoc-value
602 mime-viewer/content-filter-alist)
604 (if (and f (fboundp f))
605 (funcall f ctype params encoding)
606 (mime-viewer/default-content-filter
607 cnum cinfo ctype params subj)
609 (setq ne (point-max))
611 (switch-to-buffer the-buf)
613 ((equal ctype "message/partial")
615 (switch-to-buffer obuf)
617 (setq be (point-max))
618 (narrow-to-region be be)
620 mime-viewer/announcement-for-message/partial)
621 (setq ne (point-max))
623 (switch-to-buffer the-buf)
626 (null (mime::content-info/children cinfo))
629 (switch-to-buffer obuf)
631 (setq be (point-max))
632 (narrow-to-region be be)
633 (mime-viewer/insert-content-subject
634 cnum cinfo ctype params subj)
635 (setq ne (point-max))
637 (switch-to-buffer the-buf)
640 (switch-to-buffer obuf)
641 (mime-viewer/default-content-separator
642 cnum cinfo ctype params subj)
646 (funcall mime-viewer/content-subject-function
647 cnum cinfo ctype params subj)
648 (setq ne (point-max))
650 (mime::preview-content-info/create nb (- ne 1)
656 (set-buffer-modified-p nil)
657 (setq buffer-read-only t)
658 (switch-to-buffer the-buf)
663 ;;; @ content information
666 (defun mime::get-point-content-number (p &optional cinfo)
668 (setq cinfo mime::article/content-info)
670 (let ((b (mime::content-info/point-min cinfo))
671 (e (mime::content-info/point-max cinfo))
672 (c (mime::content-info/children cinfo))
674 (if (and (<= b p)(<= p e))
675 (or (let (co ret (sn 0))
679 (setq ret (mime::get-point-content-number p co))
680 (cond ((eq ret t) (throw 'tag (list sn)))
681 (ret (throw 'tag (cons sn ret)))
688 (defun mime-article/cnum-to-cinfo (cn &optional cinfo)
690 (setq cinfo mime::article/content-info)
697 (let ((rc (nth sn (mime::content-info/children cinfo))))
699 (mime-article/cnum-to-cinfo (cdr cn) rc)
703 (defun mime::make-flat-content-list (&optional cinfo)
705 (setq cinfo mime::article/content-info)
707 (let ((dest (list cinfo))
708 (rcl (mime::content-info/children cinfo))
711 (setq dest (nconc dest (mime::make-flat-content-list (car rcl))))
716 (defun mime::point-preview-content (p &optional pcl)
718 (setq pcl mime::preview/content-list)
724 (if (and (<= (mime::preview-content-info/point-min cell) p)
725 (<= p (mime::preview-content-info/point-max cell))
738 (defun mime/make-method-args (cal format)
743 (let ((ret (cdr (assoc (eval arg) cal))))
751 (defun mime/start-external-method-region (beg end cal)
754 (narrow-to-region beg end)
756 (let ((method (cdr (assoc 'method cal)))
757 (name (mime-viewer/get-name cal))
760 (let ((file (make-temp-name
761 (expand-file-name "TM" mime/tmp-dir)))
766 (if (re-search-forward "^$" nil t)
772 (write-region b end file)
774 'name (replace-as-filename name) cal))
775 (setq cal (put-alist 'file file cal))
778 mime/output-buffer-name (car method)
780 (mime/make-method-args cal (cdr (cdr method)))
782 (apply (function start-process) args)
783 (mime/show-output-buffer)
787 (defun mime/decode-message/partial-region (beg end cal)
789 (let* ((root-dir (expand-file-name
790 (concat "m-prts-" (user-login-name)) mime/tmp-dir))
791 (id (cdr (assoc "id" cal)))
792 (number (cdr (assoc "number" cal)))
793 (total (cdr (assoc "total" cal)))
794 (the-buf (current-buffer))
796 (mother mime::article/preview-buffer))
797 (if (not (file-exists-p root-dir))
798 (make-directory root-dir)
800 (setq id (replace-as-filename id))
801 (setq root-dir (concat root-dir "/" id))
802 (if (not (file-exists-p root-dir))
803 (make-directory root-dir)
805 (setq file (concat root-dir "/FULL"))
806 (if (not (file-exists-p file))
808 (re-search-forward "^$")
809 (goto-char (+ (match-end 0) 1))
810 (setq file (concat root-dir "/" number))
811 (write-region (point) (point-max) file)
812 (if (get-buffer "*MIME-temp*")
813 (kill-buffer "*MIME-temp*")
815 (switch-to-buffer "*MIME-temp*")
817 (max (string-to-int total))
821 (setq file (concat root-dir "/" (int-to-string i)))
822 (if (not (file-exists-p file))
824 (switch-to-buffer the-buf)
827 (insert-file-contents file)
828 (goto-char (point-max))
831 (delete-other-windows)
832 (write-file (concat root-dir "/FULL"))
833 (setq major-mode 'mime/show-message-mode)
834 (mime/viewer-mode mother)
835 (pop-to-buffer (current-buffer))
839 (delete-other-windows)
841 (setq major-mode 'mime/show-message-mode)
842 (mime/viewer-mode mother)
843 (pop-to-buffer (current-buffer))
847 (defun mime/get-content-decoding-alist (al)
848 (get-unified-alist mime/content-decoding-condition al)
851 (defun mime::article/decode-content-region (cinfo)
852 (let ((beg (mime::content-info/point-min cinfo))
853 (end (mime::content-info/point-max cinfo))
854 (ctype (mime::content-info/type cinfo))
855 (params (mime::content-info/parameters cinfo))
856 (encoding (mime::content-info/encoding cinfo))
859 (let (method cal ret)
860 (setq cal (append (list (cons 'type ctype)
861 (cons 'encoding encoding)
862 (cons 'major-mode major-mode)
865 (if mime-viewer/decoding-mode
867 (cons 'mode mime-viewer/decoding-mode)
870 (setq ret (mime/get-content-decoding-alist cal))
871 (setq method (cdr (assoc 'method ret)))
872 (cond ((and (symbolp method)
874 (funcall method beg end ret)
876 ((and (listp method)(stringp (car method)))
877 (mime/start-external-method-region beg end ret)
879 (t (mime/show-output-buffer
880 "No method are specified for %s\n" ctype)
885 (defun mime/show-output-buffer (&rest forms)
886 (let ((the-buf (current-buffer)))
887 (if (null (get-buffer-window mime/output-buffer-name))
888 (split-window-vertically (/ (* (window-height) 3) 4))
890 (pop-to-buffer mime/output-buffer-name)
891 (goto-char (point-max))
893 (insert (apply (function format) forms))
895 (pop-to-buffer the-buf)
902 (defvar mime-viewer/code-converter-alist nil)
904 (defun mime-viewer/default-code-convert-region
905 (beg end charset &optional encoding)
906 (if (member encoding '("quoted-printable" "base64"))
907 (mime/code-convert-region-to-emacs beg (point-max) charset)
910 (defun mime-viewer/filter-text/plain (ctype params encoding)
911 (let ((charset (cdr (assoc "charset" params)))
912 (beg (point-min)) (end (point-max))
914 (goto-char (point-min))
915 (cond ((string= encoding "quoted-printable")
916 (quoted-printable-decode-region beg end)
918 ((string= encoding "base64")
919 (base64-decode-region beg end)
921 (let* ((mode mime::preview/original-major-mode)
922 (m (assq mode mime-viewer/code-converter-alist))
924 (if (and m (fboundp (setq m (cdr m))))
925 (funcall m beg (point-max) charset encoding)
926 (mime-viewer/default-code-convert-region beg (point-max)
929 (goto-char (point-max))
930 (if (not (eq (char-after (1- (point))) ?\n))
934 (run-hooks 'mime-viewer/plain-text-preview-hook)
938 ;;; @ MIME viewer mode
941 (defvar mime/viewer-mode-map nil)
942 (if (null mime/viewer-mode-map)
944 (setq mime/viewer-mode-map (make-keymap))
945 (suppress-keymap mime/viewer-mode-map)
946 (define-key mime/viewer-mode-map
947 "u" (function mime-viewer/up-content))
948 (define-key mime/viewer-mode-map
949 "p" (function mime-viewer/previous-content))
950 (define-key mime/viewer-mode-map
951 "n" (function mime-viewer/next-content))
952 (define-key mime/viewer-mode-map
953 " " (function mime-viewer/scroll-up-content))
954 (define-key mime/viewer-mode-map
955 "\M- " (function mime-viewer/scroll-down-content))
956 (define-key mime/viewer-mode-map
957 "\177" (function mime-viewer/scroll-down-content))
958 (define-key mime/viewer-mode-map
959 "\C-m" (function mime-viewer/next-line-content))
960 (define-key mime/viewer-mode-map
961 "\C-\M-m" (function mime-viewer/previous-line-content))
962 (define-key mime/viewer-mode-map
963 "v" (function mime-viewer/play-content))
964 (define-key mime/viewer-mode-map
965 "e" (function mime-viewer/extract-content))
966 (define-key mime/viewer-mode-map
967 "\C-c\C-p" (function mime-viewer/print-content))
968 (define-key mime/viewer-mode-map
969 "q" (function mime-viewer/quit))
970 (define-key mime/viewer-mode-map
971 "\C-c\C-x" (function mime-viewer/kill-buffer))
974 (defun mime/viewer-mode (&optional mother ctl encoding)
975 "Major mode for viewing MIME message.
977 u Move to upper content
978 p Move to previous content
979 n Move to next content
983 RET Move to next line
984 M-RET Move to previous line
985 v Decode the content as `play mode'
986 e Decode the content as `extract mode'
987 C-c C-p Decode the content as `print mode'
991 (setq mime-viewer/ignored-field-regexp
993 (mapconcat (function regexp-quote)
994 mime-viewer/ignored-field-list "\\|")
996 (let ((buf (get-buffer mime/output-buffer-name))
997 (the-buf (current-buffer))
1001 (switch-to-buffer buf)
1003 (switch-to-buffer the-buf)
1005 (let ((ret (mime-viewer/parse-message ctl encoding)))
1007 (switch-to-buffer (car ret))
1010 (make-variable-buffer-local
1011 'mime/show-mode-old-window-configuration)
1012 (setq mime/show-mode-old-window-configuration
1013 (current-window-configuration))
1014 (make-variable-buffer-local 'mime/mother-buffer)
1015 (setq mime/mother-buffer mother)
1017 (use-local-map mime/viewer-mode-map)
1018 (make-variable-buffer-local 'mime::preview/content-list)
1019 (setq mime::preview/content-list (nth 1 ret))
1021 (let ((ce (mime::preview-content-info/point-max
1022 (car mime::preview/content-list)
1025 (goto-char (point-min))
1026 (search-forward "\n\n" nil t)
1027 (setq e (match-end 0))
1031 (run-hooks 'mime/viewer-mode-hook)
1034 (defun mime-preview/point-content-number (point)
1035 (save-window-excursion
1036 (let ((pc (mime::point-preview-content (point)))
1038 (switch-to-buffer (mime::preview-content-info/buffer pc))
1039 (setq cinfo (mime::preview-content-info/content-info pc))
1040 (mime::get-point-content-number (mime::content-info/point-min cinfo))
1043 (defun mime-preview/cinfo-to-pcinfo (cinfo)
1044 (let ((rpcl mime::preview/content-list) cell)
1047 (setq cell (car rpcl))
1048 (if (eq cinfo (mime::preview-content-info/content-info cell))
1051 (setq rpcl (cdr rpcl))
1054 (defvar mime-preview/after-decoded-position nil)
1056 (defun mime-preview/decode-content ()
1058 (let ((pc (mime::point-preview-content (point))))
1060 (let ((the-buf (current-buffer)))
1061 (setq mime-preview/after-decoded-position (point))
1062 (switch-to-buffer (mime::preview-content-info/buffer pc))
1063 (mime::article/decode-content-region
1064 (mime::preview-content-info/content-info pc))
1065 (if (eq (current-buffer)
1066 (mime::preview-content-info/buffer pc))
1068 (switch-to-buffer the-buf)
1069 (goto-char mime-preview/after-decoded-position)
1073 (defun mime-viewer/play-content ()
1075 (let ((mime-viewer/decoding-mode "play"))
1076 (mime-preview/decode-content)
1079 (defun mime-viewer/extract-content ()
1081 (let ((mime-viewer/decoding-mode "extract"))
1082 (mime-preview/decode-content)
1085 (defun mime-viewer/print-content ()
1087 (let ((mime-viewer/decoding-mode "print"))
1088 (mime-preview/decode-content)
1091 (defun mime-viewer/up-content ()
1093 (let ((pc (mime::point-preview-content (point))) cinfo
1094 (the-buf (current-buffer))
1096 (switch-to-buffer (mime::preview-content-info/buffer pc))
1097 (setq cinfo (mime::preview-content-info/content-info pc))
1098 (setq cn (mime::get-point-content-number
1099 (mime::content-info/point-min cinfo)))
1101 (mime-viewer/quit the-buf
1102 (mime::preview-content-info/buffer pc)
1104 (setq r (mime-article/cnum-to-cinfo (butlast cn)))
1105 (switch-to-buffer the-buf)
1107 (let ((rpcl mime::preview/content-list) cell)
1109 (setq cell (car rpcl))
1110 (if (eq r (mime::preview-content-info/content-info cell))
1112 (goto-char (mime::preview-content-info/point-min cell))
1115 (setq rpcl (cdr rpcl))
1119 (defun mime-viewer/previous-content ()
1121 (let* ((pcl mime::preview/content-list)
1123 (i (- (length pcl) 1))
1127 (setq beg (mime::preview-content-info/point-min (nth i pcl)))
1129 (throw 'tag (goto-char beg))
1135 (defun mime-viewer/next-content ()
1137 (let ((pcl mime::preview/content-list)
1142 (setq beg (mime::preview-content-info/point-min (car pcl)))
1144 (throw 'tag (goto-char beg))
1146 (setq pcl (cdr pcl))
1150 (defun mime-viewer/scroll-up-content (&optional h)
1153 (setq h (- (window-height) 1))
1155 (let ((pcl mime::preview/content-list)
1161 (setq beg (mime::preview-content-info/point-min (car pcl)))
1165 (setq pcl (cdr pcl))
1175 (defun mime-viewer/scroll-down-content (&optional h)
1178 (setq h (- (window-height) 1))
1180 (let ((pcl mime::preview/content-list)
1184 (or (let ((i (- (length pcl) 1)))
1187 (setq beg (mime::preview-content-info/point-min
1195 (forward-line (- h))
1200 (defun mime-viewer/next-line-content ()
1202 (mime-viewer/scroll-up-content 1)
1205 (defun mime-viewer/previous-line-content ()
1207 (mime-viewer/scroll-down-content 1)
1210 (defun mime-viewer/quit (&optional the-buf buf)
1213 (setq the-buf (current-buffer))
1216 (setq buf (mime::preview-content-info/buffer
1217 (mime::point-preview-content (point))))
1220 (switch-to-buffer buf)
1221 (assoc major-mode mime-viewer/quitting-method-alist)
1225 (switch-to-buffer the-buf)
1230 (defun mime-viewer/kill-buffer ()
1232 (kill-buffer (current-buffer))
1241 (run-hooks 'tm-view-load-hook)