1 ;;; mime-view.el --- interactive MIME viewer for GNU Emacs
3 ;; Copyright (C) 1995,96,97,98,99,2000 Free Software Foundation, Inc.
5 ;; Author: MORIOKA Tomohiko <tomo@m17n.org>
7 ;; Renamed: 1994/08/31 from tm-body.el
8 ;; Renamed: 1997/02/19 from tm-view.el
9 ;; Keywords: MIME, multimedia, mail, news
11 ;; This file is part of SEMI (Sample of Elastic MIME Interfaces).
13 ;; This program is free software; you can redistribute it and/or
14 ;; modify it under the terms of the GNU General Public License as
15 ;; published by the Free Software Foundation; either version 2, or (at
16 ;; your option) any later version.
18 ;; This program is distributed in the hope that it will be useful, but
19 ;; WITHOUT ANY WARRANTY; without even the implied warranty of
20 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
21 ;; General Public License for more details.
23 ;; You should have received a copy of the GNU General Public License
24 ;; along with GNU Emacs; see the file COPYING. If not, write to the
25 ;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
26 ;; Boston, MA 02111-1307, USA.
40 (defconst mime-view-version
41 (concat (mime-product-name mime-user-interface-product) " MIME-View "
42 (mapconcat #'number-to-string
43 (mime-product-version mime-user-interface-product) ".")
44 " (" (mime-product-code-name mime-user-interface-product) ")"))
50 (defgroup mime-view nil
54 (defcustom mime-situation-examples-file "~/.mime-example"
55 "*File name of situation-examples demonstrated by user."
59 (defcustom mime-preview-move-scroll nil
60 "*Decides whether to scroll when moving to next entity.
61 When t, scroll the buffer. Non-nil but not t means scroll when
62 the next entity is within next-screen-context-lines from top or
63 buttom. Nil means don't scroll at all."
65 :type '(choice (const :tag "Off" nil)
67 (sexp :tag "Situation" 1)))
70 ;;; @ in raw-buffer (representation space)
73 (defvar mime-preview-buffer nil
74 "MIME-preview buffer corresponding with the (raw) buffer.")
75 (make-variable-buffer-local 'mime-preview-buffer)
78 (defvar mime-raw-representation-type-alist
79 '((mime-show-message-mode . binary)
80 (mime-temp-message-mode . binary)
83 "Alist of major-mode vs. representation-type of mime-raw-buffer.
84 Each element looks like (SYMBOL . REPRESENTATION-TYPE). SYMBOL is
85 major-mode or t. t means default. REPRESENTATION-TYPE must be
86 `binary' or `cooked'.")
89 ;;; @ in preview-buffer (presentation space)
92 (defvar mime-mother-buffer nil
93 "Mother buffer corresponding with the (MIME-preview) buffer.
94 If current MIME-preview buffer is generated by other buffer, such as
95 message/partial, it is called `mother-buffer'.")
96 (make-variable-buffer-local 'mime-mother-buffer)
98 ;; (defvar mime-raw-buffer nil
99 ;; "Raw buffer corresponding with the (MIME-preview) buffer.")
100 ;; (make-variable-buffer-local 'mime-raw-buffer)
102 (defvar mime-preview-original-window-configuration nil
103 "Window-configuration before mime-view-mode is called.")
104 (make-variable-buffer-local 'mime-preview-original-window-configuration)
106 (defun mime-preview-original-major-mode (&optional recursive point)
107 "Return major-mode of original buffer.
108 If optional argument RECURSIVE is non-nil and current buffer has
109 mime-mother-buffer, it returns original major-mode of the
111 (if (and recursive mime-mother-buffer)
113 (set-buffer mime-mother-buffer)
114 (mime-preview-original-major-mode recursive)
116 (cdr (assq 'major-mode
117 (get-text-property (or point
118 (if (> (point) (buffer-size))
119 (max (1- (point-max)) (point-min))
121 'mime-view-situation)))))
124 ;;; @ entity information
127 (defun mime-entity-situation (entity &optional situation)
128 "Return situation of ENTITY."
129 (let (rest param name)
131 (unless (assq 'type situation)
132 (setq rest (or (mime-entity-content-type entity)
133 (make-mime-content-type 'text 'plain))
134 situation (cons (car rest) situation)
137 (unless (assq 'subtype situation)
139 (setq rest (or (cdr (mime-entity-content-type entity))
140 '((subtype . plain)))))
141 (setq situation (cons (car rest) situation)
145 (setq param (car rest))
146 (or (assoc (car param) situation)
147 (setq situation (cons param situation)))
148 (setq rest (cdr rest)))
150 ;; Content-Disposition
152 (unless (assq 'disposition-type situation)
153 (setq rest (mime-entity-content-disposition entity))
155 (setq situation (cons (cons 'disposition-type
156 (mime-content-disposition-type rest))
158 rest (mime-content-disposition-parameters rest))
161 (setq param (car rest)
163 (if (cond ((string= name "filename")
164 (if (assq 'filename situation)
166 (setq name 'filename)))
167 ((string= name "creation-date")
168 (if (assq 'creation-date situation)
170 (setq name 'creation-date)))
171 ((string= name "modification-date")
172 (if (assq 'modification-date situation)
174 (setq name 'modification-date)))
175 ((string= name "read-date")
176 (if (assq 'read-date situation)
178 (setq name 'read-date)))
179 ((string= name "size")
180 (if (assq 'size situation)
183 (t (setq name (cons 'disposition name))
184 (if (assoc name situation)
188 (cons (cons name (cdr param))
190 (setq rest (cdr rest)))
192 ;; Content-Transfer-Encoding
193 (or (assq 'encoding situation)
195 (cons (cons 'encoding (or (mime-entity-encoding entity)
201 (defsubst mime-delq-null-situation (situations field
202 &rest ignored-values)
205 (let* ((situation (car situations))
206 (cell (assq field situation)))
208 (or (memq (cdr cell) ignored-values)
209 (setq dest (cons situation dest))
211 (setq situations (cdr situations)))
214 (defun mime-compare-situation-with-example (situation example)
215 (let ((example (copy-alist example))
218 (let* ((cell (car situation))
220 (ecell (assoc key example)))
222 (if (equal cell ecell)
223 (setq match (1+ match))
224 (setq example (delq ecell example))
227 (setq situation (cdr situation))
232 (defun mime-sort-situation (situation)
242 (disposition-type . 6)
246 (let ((ret (assq a-t order)))
248 (setq a-order (cdr ret))
254 (let ((ret (assq b-t order)))
256 (setq b-order (cdr ret))
261 (if (= a-order b-order)
262 (string< (format "%s" a-t)(format "%s" b-t))
267 (defun mime-unify-situations (entity-situation
268 condition situation-examples
269 &optional required-name ignored-value
272 (in-calist-package 'mime-view)
274 (ctree-find-calist condition entity-situation
277 (setq ret (mime-delq-null-situation ret required-name
279 (or (assq 'ignore-examples entity-situation)
287 (let ((situation (car rest))
288 (examples situation-examples))
291 (mime-compare-situation-with-example
292 situation (caar examples)))
293 (ret-score (car ret)))
294 (cond ((> ret-score max-score)
295 (setq max-score ret-score
296 max-escore (cdar examples)
297 max-examples (list (cdr ret))
298 max-situations (list situation))
300 ((= ret-score max-score)
301 (cond ((> (cdar examples) max-escore)
302 (setq max-escore (cdar examples)
303 max-examples (list (cdr ret))
304 max-situations (list situation))
306 ((= (cdar examples) max-escore)
308 (cons (cdr ret) max-examples))
309 (or (member situation max-situations)
311 (cons situation max-situations)))
313 (setq examples (cdr examples))))
314 (setq rest (cdr rest)))
316 (setq ret max-situations)
318 (let* ((example (car max-examples))
320 (assoc example situation-examples)))
322 (setcdr cell (1+ (cdr cell)))
323 (setq situation-examples
324 (cons (cons example 0)
327 (setq max-examples (cdr max-examples))
329 (cons ret situation-examples)
330 ;; ret: list of situations
331 ;; situation-examples: new examples (notoce that contents of
332 ;; argument `situation-examples' has bees modified)
335 (defun mime-view-entity-title (entity)
336 (or (mime-entity-read-field entity 'Content-Description)
337 (mime-entity-read-field entity 'Subject)
338 (mime-entity-filename entity)
341 (defvar mime-preview-situation-example-list nil)
342 (defvar mime-preview-situation-example-list-max-size 16)
343 ;; (defvar mime-preview-situation-example-condition nil)
345 (defun mime-find-entity-preview-situation (entity
346 &optional default-situation)
348 (mime-unify-situations
349 (append (mime-entity-situation entity)
351 mime-preview-condition
352 mime-preview-situation-example-list)))
353 (setq mime-preview-situation-example-list
359 (defvar mime-acting-situation-example-list nil)
360 (defvar mime-acting-situation-example-list-max-size 16)
361 (defvar mime-situation-examples-file-coding-system nil)
363 (defun mime-save-situation-examples ()
364 (if (or mime-preview-situation-example-list
365 mime-acting-situation-example-list)
366 (let ((file mime-situation-examples-file))
368 (insert ";;; " (file-name-nondirectory file) "\n")
369 (insert "\n;; This file is generated automatically by "
370 mime-view-version "\n\n")
371 (insert ";;; Code:\n\n")
372 (if mime-preview-situation-example-list
373 (pp `(setq mime-preview-situation-example-list
374 ',mime-preview-situation-example-list)
376 (if mime-acting-situation-example-list
377 (pp `(setq mime-acting-situation-example-list
378 ',mime-acting-situation-example-list)
381 (file-name-nondirectory file)
383 (setq buffer-file-coding-system
384 mime-situation-examples-file-coding-system)
386 ;; ((boundp 'buffer-file-coding-system)
387 ;; (setq buffer-file-coding-system
388 ;; mime-situation-examples-file-coding-system))
389 ;; ((boundp 'file-coding-system)
390 ;; (setq file-coding-system
391 ;; mime-situation-examples-file-coding-system)))
392 (setq buffer-file-name file)
395 (add-hook 'kill-emacs-hook 'mime-save-situation-examples)
397 (defun mime-reduce-situation-examples (situation-examples)
398 (let ((len (length situation-examples))
406 ir situation-examples)
410 jr situation-examples)
414 (setq ret (mime-compare-situation-with-example (car ic)(car jc))
416 det-ret (+ (length (car ic))(length (car jc)))
417 det-org (length (cdr ret))
418 freq (+ (cdr ic)(cdr jc)))
419 (cond ((< max-sim sim)
426 dest (cons (cdr ret) freq))
429 (cond ((> min-det-ret det-ret)
430 (setq min-det-ret det-ret
435 dest (cons (cdr ret) freq))
437 ((= min-det-ret det-ret)
438 (cond ((> min-det-org det-org)
439 (setq min-det-org det-org
443 dest (cons (cdr ret) freq))
445 ((= min-det-org det-org)
446 (cond ((> min-freq freq)
450 dest (cons (cdr ret) freq))
464 (setq jr (nthcdr (1- d-j) situation-examples))
465 (setcdr jr (cddr jr))
467 (setq situation-examples
468 (cdr situation-examples))
469 (setq ir (nthcdr (1- d-i) situation-examples))
470 (setcdr ir (cddr ir))
472 (if (setq ir (assoc (car dest) situation-examples))
474 (setcdr ir (+ (cdr ir)(cdr dest)))
476 (cons dest situation-examples)
477 ;; situation-examples may be modified.
481 ;;; @ presentation of preview
487 ;;; @@@ predicate function
490 ;; (defun mime-view-entity-button-visible-p (entity)
491 ;; "Return non-nil if header of ENTITY is visible.
492 ;; Please redefine this function if you want to change default setting."
493 ;; (let ((media-type (mime-entity-media-type entity))
494 ;; (media-subtype (mime-entity-media-subtype entity)))
495 ;; (or (not (eq media-type 'application))
496 ;; (and (not (eq media-subtype 'x-selection))
497 ;; (or (not (eq media-subtype 'octet-stream))
498 ;; (let ((mother-entity (mime-entity-parent entity)))
499 ;; (or (not (eq (mime-entity-media-type mother-entity)
501 ;; (not (eq (mime-entity-media-subtype mother-entity)
506 ;;; @@@ entity button generator
509 (defun mime-view-insert-entity-button (entity)
510 "Insert entity-button of ENTITY."
511 (let ((entity-node-id (mime-entity-node-id entity))
512 (params (mime-entity-parameters entity))
513 (subject (mime-view-entity-title entity)))
515 (let ((access-type (assoc "access-type" params))
516 (num (or (cdr (assoc "x-part-number" params))
517 (if (consp entity-node-id)
520 (format "%s" (1+ num))
522 (reverse entity-node-id) ".")
526 (let ((server (assoc "server" params)))
527 (setq access-type (cdr access-type))
529 (format "%s %s ([%s] %s)"
530 num subject access-type (cdr server))
531 (let ((site (cdr (assoc "site" params)))
532 (dir (cdr (assoc "directory" params)))
533 (url (cdr (assoc "url" params)))
536 (format "%s %s ([%s] %s)"
537 num subject access-type url)
538 (format "%s %s ([%s] %s:%s)"
539 num subject access-type site dir))
543 (let ((media-type (mime-entity-media-type entity))
544 (media-subtype (mime-entity-media-subtype entity))
545 (charset (cdr (assoc "charset" params)))
546 (encoding (mime-entity-encoding entity)))
550 (format " <%s/%s%s%s>"
551 media-type media-subtype
553 (concat "; " charset)
556 (concat " (" encoding ")")
558 (if (>= (+ (current-column)(length rest))(window-width))
562 (function mime-preview-play-current-entity))
569 (defvar mime-header-presentation-method-alist nil
570 "Alist of major mode vs. corresponding header-presentation-method functions.
571 Each element looks like (SYMBOL . FUNCTION).
572 SYMBOL must be major mode in raw-buffer or t. t means default.
573 Interface of FUNCTION must be (ENTITY SITUATION).")
575 (defvar mime-view-ignored-field-list
576 '(".*Received:" ".*Path:" ".*Id:" "^References:"
577 "^Replied:" "^Errors-To:"
578 "^Lines:" "^Sender:" ".*Host:" "^Xref:"
579 "^Content-Type:" "^Precedence:"
580 "^Status:" "^X-VM-.*:")
581 "All fields that match this list will be hidden in MIME preview buffer.
582 Each elements are regexp of field-name.")
584 (defvar mime-view-visible-field-list '("^Dnas.*:" "^Message-Id:")
585 "All fields that match this list will be displayed in MIME preview buffer.
586 Each elements are regexp of field-name.")
592 ;;; @@@ predicate function
595 (in-calist-package 'mime-view)
597 (defun mime-calist::field-match-method-as-default-rule (calist
598 field-type field-value)
599 (let ((s-field (assq field-type calist)))
600 (cond ((null s-field)
601 (cons (cons field-type field-value) calist)
605 (define-calist-field-match-method
606 'header #'mime-calist::field-match-method-as-default-rule)
608 (define-calist-field-match-method
609 'body #'mime-calist::field-match-method-as-default-rule)
612 (defvar mime-preview-condition nil
613 "Condition-tree about how to display entity.")
615 (ctree-set-calist-strictly
616 'mime-preview-condition '((type . application)(subtype . octet-stream)
619 (ctree-set-calist-strictly
620 'mime-preview-condition '((type . application)(subtype . octet-stream)
623 (ctree-set-calist-strictly
624 'mime-preview-condition '((type . application)(subtype . octet-stream)
628 (ctree-set-calist-strictly
629 'mime-preview-condition '((type . application)(subtype . pgp)
632 (ctree-set-calist-strictly
633 'mime-preview-condition '((type . application)(subtype . x-latex)
636 (ctree-set-calist-strictly
637 'mime-preview-condition '((type . application)(subtype . x-selection)
640 (ctree-set-calist-strictly
641 'mime-preview-condition '((type . application)(subtype . x-comment)
644 (ctree-set-calist-strictly
645 'mime-preview-condition '((type . message)(subtype . delivery-status)
648 (ctree-set-calist-strictly
649 'mime-preview-condition
651 (body-presentation-method . mime-display-text/plain)))
653 (ctree-set-calist-strictly
654 'mime-preview-condition
657 (body-presentation-method . mime-display-text/plain)))
659 (ctree-set-calist-strictly
660 'mime-preview-condition
661 '((type . text)(subtype . enriched)
663 (body-presentation-method . mime-display-text/enriched)))
665 (ctree-set-calist-strictly
666 'mime-preview-condition
667 '((type . text)(subtype . richtext)
669 (body-presentation-method . mime-display-text/richtext)))
671 (autoload 'mime-display-application/x-postpet "postpet")
673 (ctree-set-calist-strictly
674 'mime-preview-condition
675 '((type . application)(subtype . x-postpet)
677 (body-presentation-method . mime-display-application/x-postpet)))
679 (ctree-set-calist-strictly
680 'mime-preview-condition
681 '((type . text)(subtype . t)
683 (body-presentation-method . mime-display-text/plain)))
685 (ctree-set-calist-strictly
686 'mime-preview-condition
687 '((type . multipart)(subtype . alternative)
689 (body-presentation-method . mime-display-multipart/alternative)))
691 (ctree-set-calist-strictly
692 'mime-preview-condition
693 '((type . multipart)(subtype . t)
695 (body-presentation-method . mime-display-multipart/mixed)))
697 (ctree-set-calist-strictly
698 'mime-preview-condition
699 '((type . message)(subtype . partial)
701 (body-presentation-method . mime-display-message/partial-button)))
703 (ctree-set-calist-strictly
704 'mime-preview-condition
705 '((type . message)(subtype . rfc822)
707 (body-presentation-method . mime-display-multipart/mixed)
708 (childrens-situation (header . visible)
709 (entity-button . invisible))))
711 (ctree-set-calist-strictly
712 'mime-preview-condition
713 '((type . message)(subtype . news)
715 (body-presentation-method . mime-display-multipart/mixed)
716 (childrens-situation (header . visible)
717 (entity-button . invisible))))
720 ;;; @@@ entity presentation
723 (defun mime-display-text/plain (entity situation)
725 (narrow-to-region (point-max)(point-max))
727 (mime-insert-text-content entity)
729 (message "Can't decode current entity.")
731 (run-hooks 'mime-text-decode-hook)
732 (goto-char (point-max))
733 (if (not (eq (char-after (1- (point))) ?\n))
736 (mime-add-url-buttons)
737 (run-hooks 'mime-display-text/plain-hook)
740 (defun mime-display-text/richtext (entity situation)
742 (narrow-to-region (point-max)(point-max))
743 (mime-insert-text-content entity)
744 (run-hooks 'mime-text-decode-hook)
745 (let ((beg (point-min)))
746 (remove-text-properties beg (point-max) '(face nil))
747 (richtext-decode beg (point-max))
750 (defun mime-display-text/enriched (entity situation)
752 (narrow-to-region (point-max)(point-max))
753 (mime-insert-text-content entity)
754 (run-hooks 'mime-text-decode-hook)
755 (let ((beg (point-min)))
756 (remove-text-properties beg (point-max) '(face nil))
757 (enriched-decode beg (point-max))
761 (defvar mime-view-announcement-for-message/partial
762 (if (and (>= emacs-major-version 19) window-system)
764 \[[ This is message/partial style split message. ]]
765 \[[ Please press `v' key in this buffer ]]
766 \[[ or click here by mouse button-2. ]]"
768 \[[ This is message/partial style split message. ]]
769 \[[ Please press `v' key in this buffer. ]]"
772 (defun mime-display-message/partial-button (&optional entity situation)
774 (goto-char (point-max))
775 (if (not (search-backward "\n\n" nil t))
778 (goto-char (point-max))
779 (narrow-to-region (point-max)(point-max))
780 (insert mime-view-announcement-for-message/partial)
781 (mime-add-button (point-min)(point-max)
782 #'mime-preview-play-current-entity)
785 (defun mime-display-multipart/mixed (entity situation)
786 (let ((children (mime-entity-children entity))
787 (original-major-mode-cell (assq 'major-mode situation))
789 (cdr (assq 'childrens-situation situation))))
790 (if original-major-mode-cell
791 (setq default-situation
792 (cons original-major-mode-cell default-situation)))
794 (mime-display-entity (car children) nil default-situation)
795 (setq children (cdr children))
798 (defcustom mime-view-type-subtype-score-alist
799 '(((text . enriched) . 3)
800 ((text . richtext) . 2)
803 "Alist MEDIA-TYPE vs corresponding score.
804 MEDIA-TYPE must be (TYPE . SUBTYPE), TYPE or t. t means default."
806 :type '(repeat (cons (choice :tag "Media-Type"
807 (cons :tag "Type/Subtype"
808 (symbol :tag "Primary-type")
809 (symbol :tag "Subtype"))
811 (const :tag "Default" t))
814 (defun mime-display-multipart/alternative (entity situation)
815 (let* ((children (mime-entity-children entity))
816 (original-major-mode-cell (assq 'major-mode situation))
818 (cdr (assq 'childrens-situation situation)))
823 (if original-major-mode-cell
824 (setq default-situation
825 (cons original-major-mode-cell default-situation)))
830 (mime-find-entity-preview-situation
831 child default-situation)))
832 (if (cdr (assq 'body-presentation-method situation))
837 (cdr (assq 'type situation))
838 (cdr (assq 'subtype situation)))
839 mime-view-type-subtype-score-alist)
841 (cdr (assq 'type situation))
842 mime-view-type-subtype-score-alist)
845 mime-view-type-subtype-score-alist)
847 (if (> score max-score)
857 (let ((child (car children))
858 (situation (car situations)))
859 (mime-display-entity child (if (= i p)
861 (put-alist 'body 'invisible
862 (copy-alist situation)))))
863 (setq children (cdr children)
864 situations (cdr situations)
868 ;;; @ acting-condition
871 (defvar mime-acting-condition nil
872 "Condition-tree about how to process entity.")
874 (if (file-readable-p mime-mailcap-file)
875 (let ((entries (mime-parse-mailcap-file)))
877 (let ((entry (car entries))
880 (let* ((field (car entry))
881 (field-type (car field)))
882 (cond ((eq field-type 'view) (setq view field))
883 ((eq field-type 'print) (setq print field))
884 ((memq field-type '(compose composetyped edit)))
885 (t (setq shared (cons field shared))))
887 (setq entry (cdr entry))
889 (setq shared (nreverse shared))
890 (ctree-set-calist-with-default
891 'mime-acting-condition
892 (append shared (list '(mode . "play")(cons 'method (cdr view)))))
894 (ctree-set-calist-with-default
895 'mime-acting-condition
897 (list '(mode . "print")(cons 'method (cdr view))))
900 (setq entries (cdr entries))
903 (ctree-set-calist-strictly
904 'mime-acting-condition
905 '((type . application)(subtype . octet-stream)
907 (method . mime-detect-content)
910 (ctree-set-calist-with-default
911 'mime-acting-condition
913 (method . mime-save-content)))
915 (ctree-set-calist-strictly
916 'mime-acting-condition
917 '((type . text)(subtype . x-rot13-47)(mode . "play")
918 (method . mime-view-caesar)
920 (ctree-set-calist-strictly
921 'mime-acting-condition
922 '((type . text)(subtype . x-rot13-47-48)(mode . "play")
923 (method . mime-view-caesar)
926 (ctree-set-calist-strictly
927 'mime-acting-condition
928 '((type . message)(subtype . rfc822)(mode . "play")
929 (method . mime-view-message/rfc822)
931 (ctree-set-calist-strictly
932 'mime-acting-condition
933 '((type . message)(subtype . partial)(mode . "play")
934 (method . mime-store-message/partial-piece)
937 (ctree-set-calist-strictly
938 'mime-acting-condition
939 '((type . message)(subtype . external-body)
940 ("access-type" . "anon-ftp")
941 (method . mime-view-message/external-anon-ftp)
944 (ctree-set-calist-strictly
945 'mime-acting-condition
946 '((type . message)(subtype . external-body)
947 ("access-type" . "url")
948 (method . mime-view-message/external-url)
951 (ctree-set-calist-strictly
952 'mime-acting-condition
953 '((type . application)(subtype . octet-stream)
954 (method . mime-save-content)
958 ;;; @ quitting method
961 (defvar mime-preview-quitting-method-alist
962 '((mime-show-message-mode
963 . mime-preview-quitting-method-for-mime-show-message-mode))
964 "Alist of major-mode vs. quitting-method of mime-view.")
966 (defvar mime-preview-over-to-previous-method-alist nil
967 "Alist of major-mode vs. over-to-previous-method of mime-view.")
969 (defvar mime-preview-over-to-next-method-alist nil
970 "Alist of major-mode vs. over-to-next-method of mime-view.")
973 ;;; @ following method
976 (defvar mime-preview-following-method-alist nil
977 "Alist of major-mode vs. following-method of mime-view.")
979 (defvar mime-view-following-required-fields-list
986 (defun mime-display-entity (entity &optional situation
987 default-situation preview-buffer)
989 (setq preview-buffer (current-buffer)))
990 (let* (e nb ne nhb nbb)
991 (in-calist-package 'mime-view)
994 (mime-find-entity-preview-situation entity default-situation)))
995 (let ((button-is-invisible
996 (eq (cdr (or (assq '*entity-button situation)
997 (assq 'entity-button situation)))
1000 (eq (cdr (or (assq '*header situation)
1001 (assq 'header situation)))
1004 (eq (cdr (or (assq '*body situation)
1005 (assq 'body situation)))
1007 (children (mime-entity-children entity)))
1008 (set-buffer preview-buffer)
1010 (narrow-to-region nb nb)
1011 (or button-is-invisible
1012 ;; (if (mime-view-entity-button-visible-p entity)
1013 (mime-view-insert-entity-button entity)
1016 (if header-is-visible
1017 (let ((header-presentation-method
1018 (or (cdr (assq 'header-presentation-method situation))
1019 (cdr (assq (cdr (assq 'major-mode situation))
1020 mime-header-presentation-method-alist)))))
1022 (if header-presentation-method
1023 (funcall header-presentation-method entity situation)
1024 (mime-insert-header entity
1025 mime-view-ignored-field-list
1026 mime-view-visible-field-list))
1027 (run-hooks 'mime-display-header-hook)
1028 (put-text-property nhb (point-max) 'mime-view-entity-header entity)
1029 (goto-char (point-max))
1034 (let ((body-presentation-method
1035 (cdr (assq 'body-presentation-method situation))))
1036 (if (functionp body-presentation-method)
1037 (funcall body-presentation-method entity situation)
1038 (mime-display-text/plain entity situation)))
1039 (when button-is-invisible
1040 (goto-char (point-max))
1041 (mime-view-insert-entity-button entity)
1043 (unless header-is-visible
1044 (goto-char (point-max))
1047 (setq ne (point-max))
1049 (put-text-property nb ne 'mime-view-entity entity)
1050 (put-text-property nb ne 'mime-view-situation situation)
1051 (put-text-property nbb ne 'mime-view-entity-body entity)
1053 (if (and children body-is-visible)
1054 (let ((body-presentation-method
1055 (cdr (assq 'body-presentation-method situation))))
1056 (if (functionp body-presentation-method)
1057 (funcall body-presentation-method entity situation)
1058 (mime-display-multipart/mixed entity situation))))
1062 ;;; @ MIME viewer mode
1065 (defconst mime-view-menu-title "MIME-View")
1066 (defconst mime-view-menu-list
1067 '((up "Move to upper entity" mime-preview-move-to-upper)
1068 (previous "Move to previous entity" mime-preview-move-to-previous)
1069 (next "Move to next entity" mime-preview-move-to-next)
1070 (scroll-down "Scroll-down" mime-preview-scroll-down-entity)
1071 (scroll-up "Scroll-up" mime-preview-scroll-up-entity)
1072 (play "Play current entity" mime-preview-play-current-entity)
1073 (extract "Extract current entity" mime-preview-extract-current-entity)
1074 (print "Print current entity" mime-preview-print-current-entity)
1076 "Menu for MIME Viewer")
1078 (cond ((featurep 'xemacs)
1079 (defvar mime-view-xemacs-popup-menu
1080 (cons mime-view-menu-title
1083 (vector (nth 1 item)(nth 2 item) t)
1085 mime-view-menu-list)))
1086 (defun mime-view-xemacs-popup-menu (event)
1087 "Popup the menu in the MIME Viewer buffer"
1089 (select-window (event-window event))
1090 (set-buffer (event-buffer event))
1091 (popup-menu 'mime-view-xemacs-popup-menu))
1092 (defvar mouse-button-2 'button2)
1093 (defvar mouse-button-3 'button3)
1096 (defvar mime-view-popup-menu
1097 (let ((menu (make-sparse-keymap mime-view-menu-title)))
1101 (list (intern (nth 1 item)) 'menu-item
1102 (nth 1 item)(nth 2 item))
1104 mime-view-menu-list))))
1105 (defun mime-view-popup-menu (event)
1106 "Popup the menu in the MIME Viewer buffer"
1108 (let ((menu mime-view-popup-menu) events func)
1109 (setq events (x-popup-menu t menu))
1111 (setq func (lookup-key menu (apply #'vector events)))
1114 (defvar mouse-button-2 [mouse-2])
1115 (defvar mouse-button-3 [mouse-3])
1118 (defun mime-view-define-keymap (&optional default)
1119 (let ((mime-view-mode-map (if (keymapp default)
1120 (copy-keymap default)
1121 (make-sparse-keymap))))
1122 (define-key mime-view-mode-map
1123 "u" (function mime-preview-move-to-upper))
1124 (define-key mime-view-mode-map
1125 "p" (function mime-preview-move-to-previous))
1126 (define-key mime-view-mode-map
1127 "n" (function mime-preview-move-to-next))
1128 (define-key mime-view-mode-map
1129 "\e\t" (function mime-preview-move-to-previous))
1130 (define-key mime-view-mode-map
1131 "\t" (function mime-preview-move-to-next))
1132 (define-key mime-view-mode-map
1133 " " (function mime-preview-scroll-up-entity))
1134 (define-key mime-view-mode-map
1135 "\M- " (function mime-preview-scroll-down-entity))
1136 (define-key mime-view-mode-map
1137 "\177" (function mime-preview-scroll-down-entity))
1138 (define-key mime-view-mode-map
1139 "\C-m" (function mime-preview-next-line-entity))
1140 (define-key mime-view-mode-map
1141 "\C-\M-m" (function mime-preview-previous-line-entity))
1142 (define-key mime-view-mode-map
1143 "v" (function mime-preview-play-current-entity))
1144 (define-key mime-view-mode-map
1145 "e" (function mime-preview-extract-current-entity))
1146 (define-key mime-view-mode-map
1147 "\C-c\C-p" (function mime-preview-print-current-entity))
1149 (define-key mime-view-mode-map
1150 "\C-c\C-t\C-f" (function mime-preview-toggle-header))
1151 (define-key mime-view-mode-map
1152 "\C-c\C-th" (function mime-preview-toggle-header))
1153 (define-key mime-view-mode-map
1154 "\C-c\C-t\C-c" (function mime-preview-toggle-content))
1156 (define-key mime-view-mode-map
1157 "\C-c\C-v\C-f" (function mime-preview-show-header))
1158 (define-key mime-view-mode-map
1159 "\C-c\C-vh" (function mime-preview-show-header))
1160 (define-key mime-view-mode-map
1161 "\C-c\C-v\C-c" (function mime-preview-show-content))
1163 (define-key mime-view-mode-map
1164 "\C-c\C-d\C-f" (function mime-preview-hide-header))
1165 (define-key mime-view-mode-map
1166 "\C-c\C-dh" (function mime-preview-hide-header))
1167 (define-key mime-view-mode-map
1168 "\C-c\C-d\C-c" (function mime-preview-hide-content))
1170 (define-key mime-view-mode-map
1171 "a" (function mime-preview-follow-current-entity))
1172 (define-key mime-view-mode-map
1173 "q" (function mime-preview-quit))
1174 (define-key mime-view-mode-map
1175 "\C-c\C-x" (function mime-preview-kill-buffer))
1176 ;; (define-key mime-view-mode-map
1177 ;; "<" (function beginning-of-buffer))
1178 ;; (define-key mime-view-mode-map
1179 ;; ">" (function end-of-buffer))
1180 (define-key mime-view-mode-map
1181 "?" (function describe-mode))
1182 (define-key mime-view-mode-map
1183 [tab] (function mime-preview-move-to-next))
1184 (define-key mime-view-mode-map
1185 [delete] (function mime-preview-scroll-down-entity))
1186 (define-key mime-view-mode-map
1187 [backspace] (function mime-preview-scroll-down-entity))
1188 (if (functionp default)
1189 (cond ((featurep 'xemacs)
1190 (set-keymap-default-binding mime-view-mode-map default)
1193 (setq mime-view-mode-map
1194 (append mime-view-mode-map (list (cons t default))))
1197 (define-key mime-view-mode-map
1198 mouse-button-2 (function mime-button-dispatcher))
1200 (cond ((featurep 'xemacs)
1201 (define-key mime-view-mode-map
1202 mouse-button-3 (function mime-view-xemacs-popup-menu))
1204 ((>= emacs-major-version 19)
1205 (define-key mime-view-mode-map
1206 mouse-button-3 (function mime-view-popup-menu))
1207 (define-key mime-view-mode-map [menu-bar mime-view]
1208 (cons mime-view-menu-title
1209 (make-sparse-keymap mime-view-menu-title)))
1212 (define-key mime-view-mode-map
1213 (vector 'menu-bar 'mime-view (car item))
1214 (cons (nth 1 item)(nth 2 item)))
1216 (reverse mime-view-menu-list))
1218 ;; (run-hooks 'mime-view-define-keymap-hook)
1219 mime-view-mode-map))
1221 (defvar mime-view-mode-default-map (mime-view-define-keymap))
1224 (defsubst mime-maybe-hide-echo-buffer ()
1225 "Clear mime-echo buffer and delete window for it."
1226 (let ((buf (get-buffer mime-echo-buffer-name)))
1231 (let ((win (get-buffer-window buf)))
1238 (defvar mime-view-redisplay nil)
1241 (defun mime-display-message (message &optional preview-buffer
1242 mother default-keymap-or-function
1243 original-major-mode keymap)
1244 "View MESSAGE in MIME-View mode.
1246 Optional argument PREVIEW-BUFFER specifies the buffer of the
1247 presentation. It must be either nil or a name of preview buffer.
1249 Optional argument MOTHER specifies mother-buffer of the preview-buffer.
1251 Optional argument DEFAULT-KEYMAP-OR-FUNCTION is nil, keymap or
1252 function. If it is a keymap, keymap of MIME-View mode will be added
1253 to it. If it is a function, it will be bound as default binding of
1254 keymap of MIME-View mode.
1256 Optional argument ORIGINAL-MAJOR-MODE is major-mode of representation
1257 buffer of MESSAGE. If it is nil, current `major-mode' is used.
1259 Optional argument KEYMAP is keymap of MIME-View mode. If it is
1260 non-nil, DEFAULT-KEYMAP-OR-FUNCTION is ignored. If it is nil,
1261 `mime-view-mode-default-map' is used."
1262 (mime-maybe-hide-echo-buffer)
1263 (let ((win-conf (current-window-configuration)))
1265 (setq preview-buffer
1266 (concat "*Preview-" (mime-entity-name message) "*")))
1267 (or original-major-mode
1268 (setq original-major-mode major-mode))
1269 (let ((inhibit-read-only t))
1270 (set-buffer (get-buffer-create preview-buffer))
1274 (setq mime-mother-buffer mother))
1275 (setq mime-preview-original-window-configuration win-conf)
1276 (setq major-mode 'mime-view-mode)
1277 (setq mode-name "MIME-View")
1278 (mime-display-entity message nil
1279 `((entity-button . invisible)
1281 (major-mode . ,original-major-mode))
1285 (if default-keymap-or-function
1286 (mime-view-define-keymap default-keymap-or-function)
1287 mime-view-mode-default-map)))
1289 (next-single-property-change (point-min) 'mime-view-entity)))
1292 (goto-char (point-min))
1293 (search-forward "\n\n" nil t)))
1294 (run-hooks 'mime-view-mode-hook)
1295 (set-buffer-modified-p nil)
1296 (setq buffer-read-only t)
1300 (defun mime-view-buffer (&optional raw-buffer preview-buffer mother
1301 default-keymap-or-function
1302 representation-type)
1303 "View RAW-BUFFER in MIME-View mode.
1304 Optional argument PREVIEW-BUFFER is either nil or a name of preview
1306 Optional argument DEFAULT-KEYMAP-OR-FUNCTION is nil, keymap or
1307 function. If it is a keymap, keymap of MIME-View mode will be added
1308 to it. If it is a function, it will be bound as default binding of
1309 keymap of MIME-View mode.
1310 Optional argument REPRESENTATION-TYPE is representation-type of
1311 message. It must be nil, `binary' or `cooked'. If it is nil,
1312 `cooked' is used as default."
1315 (setq raw-buffer (current-buffer)))
1316 (or representation-type
1317 (setq representation-type
1319 (set-buffer raw-buffer)
1320 (cdr (or (assq major-mode mime-raw-representation-type-alist)
1321 (assq t mime-raw-representation-type-alist)))
1323 (if (eq representation-type 'binary)
1324 (setq representation-type 'buffer)
1326 (setq preview-buffer (mime-display-message
1327 (mime-open-entity representation-type raw-buffer)
1328 preview-buffer mother default-keymap-or-function))
1329 (or (get-buffer-window preview-buffer)
1330 (let ((r-win (get-buffer-window raw-buffer)))
1332 (set-window-buffer r-win preview-buffer)
1333 (let ((m-win (and mother (get-buffer-window mother))))
1335 (set-window-buffer m-win preview-buffer)
1336 (switch-to-buffer preview-buffer)
1339 (defun mime-view-mode (&optional mother ctl encoding
1340 raw-buffer preview-buffer
1341 default-keymap-or-function)
1342 "Major mode for viewing MIME message.
1344 Here is a list of the standard keys for mime-view-mode.
1349 u Move to upper content
1350 p or M-TAB Move to previous content
1351 n or TAB Move to next content
1352 SPC Scroll up or move to next content
1353 M-SPC or DEL Scroll down or move to previous content
1354 RET Move to next line
1355 M-RET Move to previous line
1356 v Decode current content as `play mode'
1357 e Decode current content as `extract mode'
1358 C-c C-p Decode current content as `print mode'
1359 a Followup to current content.
1361 button-2 Move to point under the mouse cursor
1362 and decode current content as `play mode'
1365 (unless mime-view-redisplay
1367 (if raw-buffer (set-buffer raw-buffer))
1370 (or (assq major-mode mime-raw-representation-type-alist)
1371 (assq t mime-raw-representation-type-alist)))))
1372 (if (eq type 'binary)
1375 (setq mime-message-structure (mime-open-entity type raw-buffer))
1376 (or (mime-entity-content-type mime-message-structure)
1377 (mime-entity-set-content-type mime-message-structure ctl))
1379 (or (mime-entity-encoding mime-message-structure)
1380 (mime-entity-set-encoding mime-message-structure encoding))
1382 (mime-display-message mime-message-structure preview-buffer
1383 mother default-keymap-or-function)
1390 (defun mime-preview-find-boundary-info (&optional get-mother)
1394 (while (null (setq entity
1395 (get-text-property (point) 'mime-view-entity)))
1397 (setq p-beg (previous-single-property-change (point) 'mime-view-entity))
1398 (setq entity-node-id (mime-entity-node-id entity))
1399 (setq len (length entity-node-id))
1402 (if (eq (next-single-property-change (point-min)
1408 ((eq (next-single-property-change p-beg 'mime-view-entity)
1410 (setq p-beg (point))
1412 (setq p-end (next-single-property-change p-beg 'mime-view-entity))
1414 (setq p-end (point-max))
1416 ((null entity-node-id)
1417 (setq p-end (point-max))
1425 (next-single-property-change
1426 (point) 'mime-view-entity))
1428 (let ((rc (mime-entity-node-id
1429 (get-text-property (1- (point))
1430 'mime-view-entity))))
1431 (or (and (>= (setq i (- (length rc) len)) 0)
1432 (equal entity-node-id (nthcdr i rc)))
1435 (setq p-end (point-max))))
1437 (vector p-beg p-end entity)))
1443 (autoload 'mime-preview-play-current-entity "mime-play"
1444 "Play current entity." t)
1446 (defun mime-preview-extract-current-entity (&optional ignore-examples)
1447 "Extract current entity into file (maybe).
1448 It decodes current entity to call internal or external method as
1449 \"extract\" mode. The method is selected from variable
1450 `mime-acting-condition'."
1452 (mime-preview-play-current-entity ignore-examples "extract")
1455 (defun mime-preview-print-current-entity (&optional ignore-examples)
1456 "Print current entity (maybe).
1457 It decodes current entity to call internal or external method as
1458 \"print\" mode. The method is selected from variable
1459 `mime-acting-condition'."
1461 (mime-preview-play-current-entity ignore-examples "print")
1468 (defun mime-preview-follow-current-entity ()
1469 "Write follow message to current entity.
1470 It calls following-method selected from variable
1471 `mime-preview-following-method-alist'."
1473 (let ((entity (mime-preview-find-boundary-info t))
1476 (setq p-beg (aref entity 0)
1477 p-end (aref entity 1)
1478 entity (aref entity 2))
1479 (if (get-text-property p-beg 'mime-view-entity-body)
1482 (next-single-property-change
1483 p-beg 'mime-view-entity-body nil
1484 (or (next-single-property-change p-beg 'mime-view-entity)
1486 (let* ((mode (mime-preview-original-major-mode 'recursive))
1487 (entity-node-id (mime-entity-node-id entity))
1489 (format "%s-%s" (buffer-name) (reverse entity-node-id)))
1491 (the-buf (current-buffer))
1494 (set-buffer (setq new-buf (get-buffer-create new-name)))
1497 (insert-buffer-substring the-buf pb-beg p-end)
1498 (goto-char (point-min))
1499 (let ((current-entity
1500 (if (and (eq (mime-entity-media-type entity) 'message)
1501 (eq (mime-entity-media-subtype entity) 'rfc822))
1502 (car (mime-entity-children entity))
1504 (while (and current-entity
1505 (if (and (eq (mime-entity-media-type
1506 current-entity) 'message)
1507 (eq (mime-entity-media-subtype
1508 current-entity) 'rfc822))
1510 (mime-insert-header current-entity fields)
1512 (setq fields (std11-collect-field-names)
1513 current-entity (mime-entity-parent current-entity))
1515 (let ((rest mime-view-following-required-fields-list)
1518 (setq field-name (car rest))
1519 (or (std11-field-body field-name)
1522 (set-buffer the-buf)
1523 (let ((entity (when mime-mother-buffer
1524 (set-buffer mime-mother-buffer)
1525 (get-text-property (point)
1526 'mime-view-entity))))
1528 (null (setq ret (mime-entity-fetch-field
1529 entity field-name))))
1530 (setq entity (mime-entity-parent entity)))))
1532 (insert (concat field-name ": " ret "\n"))
1534 (setq rest (cdr rest))
1537 (let ((f (cdr (assq mode mime-preview-following-method-alist))))
1542 "Sorry, following method for %s is not implemented yet."
1551 (defun mime-preview-move-to-upper ()
1552 "Move to upper entity.
1553 If there is no upper entity, call function `mime-preview-quit'."
1556 (while (null (setq cinfo
1557 (get-text-property (point) 'mime-view-entity)))
1560 (let ((r (mime-entity-parent cinfo))
1563 (while (setq point (previous-single-property-change
1564 (point) 'mime-view-entity))
1566 (when (eq r (get-text-property (point) 'mime-view-entity))
1567 (if (or (eq mime-preview-move-scroll t)
1568 (and mime-preview-move-scroll
1571 (move-to-window-line -1)
1572 (forward-line (* -1 next-screen-context-lines))
1575 (recenter next-screen-context-lines))
1582 (defun mime-preview-move-to-previous ()
1583 "Move to previous entity.
1584 If there is no previous entity, it calls function registered in
1585 variable `mime-preview-over-to-previous-method-alist'."
1587 (while (and (not (bobp))
1588 (null (get-text-property (point) 'mime-view-entity)))
1591 (let ((point (previous-single-property-change (point) 'mime-view-entity)))
1593 (>= point (point-min)))
1594 (if (get-text-property (1- point) 'mime-view-entity)
1595 (progn (goto-char point)
1597 (or (eq mime-preview-move-scroll t)
1598 (and mime-preview-move-scroll
1601 (move-to-window-line 0)
1602 (forward-line next-screen-context-lines)
1605 (recenter (* -1 next-screen-context-lines))))
1606 (goto-char (1- point))
1607 (mime-preview-move-to-previous)
1609 (let ((f (assq (mime-preview-original-major-mode)
1610 mime-preview-over-to-previous-method-alist)))
1616 (defun mime-preview-move-to-next ()
1617 "Move to next entity.
1618 If there is no previous entity, it calls function registered in
1619 variable `mime-preview-over-to-next-method-alist'."
1621 (while (and (not (eobp))
1622 (null (get-text-property (point) 'mime-view-entity)))
1625 (let ((point (next-single-property-change (point) 'mime-view-entity)))
1627 (<= point (point-max)))
1630 (if (null (get-text-property point 'mime-view-entity))
1631 (mime-preview-move-to-next)
1633 (or (eq mime-preview-move-scroll t)
1634 (and mime-preview-move-scroll
1637 (move-to-window-line -1)
1639 (* -1 next-screen-context-lines))
1642 (recenter next-screen-context-lines))
1644 (let ((f (assq (mime-preview-original-major-mode)
1645 mime-preview-over-to-next-method-alist)))
1651 (defun mime-preview-scroll-up-entity (&optional h)
1652 "Scroll up current entity.
1653 If reached to (point-max), it calls function registered in variable
1654 `mime-preview-over-to-next-method-alist'."
1657 (let ((f (assq (mime-preview-original-major-mode)
1658 mime-preview-over-to-next-method-alist)))
1663 (or (next-single-property-change (point) 'mime-view-entity)
1665 (bottom (window-end (selected-window))))
1668 (progn (goto-char point)
1669 (recenter next-screen-context-lines))
1673 (goto-char (point-max)))))
1676 (defun mime-preview-scroll-down-entity (&optional h)
1677 "Scroll down current entity.
1678 If reached to (point-min), it calls function registered in variable
1679 `mime-preview-over-to-previous-method-alist'."
1682 (let ((f (assq (mime-preview-original-major-mode)
1683 mime-preview-over-to-previous-method-alist)))
1688 (or (previous-single-property-change (point) 'mime-view-entity)
1690 (top (window-start (selected-window))))
1693 (progn (goto-char point)
1694 (recenter (* -1 next-screen-context-lines)))
1697 (beginning-of-buffer
1698 (goto-char (point-min)))))
1701 (defun mime-preview-next-line-entity (&optional lines)
1702 "Scroll up one line (or prefix LINES lines).
1703 If LINES is negative, scroll down LINES lines."
1705 (mime-preview-scroll-up-entity (or lines 1))
1708 (defun mime-preview-previous-line-entity (&optional lines)
1709 "Scrroll down one line (or prefix LINES lines).
1710 If LINES is negative, scroll up LINES lines."
1712 (mime-preview-scroll-down-entity (or lines 1))
1719 (defun mime-preview-toggle-display (type &optional display)
1720 (let ((situation (mime-preview-find-boundary-info))
1721 (sym (intern (concat "*" (symbol-name type))))
1723 (setq p-beg (aref situation 0)
1724 p-end (aref situation 1)
1725 entity (aref situation 2)
1726 situation (get-text-property p-beg 'mime-view-situation))
1727 (cond ((eq display 'invisible)
1732 (eq (cdr (or (assq sym situation)
1733 (assq type situation)))
1735 (setq situation (put-alist sym (if display
1740 (let ((inhibit-read-only t))
1741 (delete-region p-beg p-end)
1742 (mime-display-entity entity situation)))
1743 (let ((ret (assoc situation mime-preview-situation-example-list)))
1745 (setcdr ret (1+ (cdr ret)))
1746 (add-to-list 'mime-preview-situation-example-list
1747 (cons situation 0))))))
1749 (defun mime-preview-toggle-header (&optional force-visible)
1751 (mime-preview-toggle-display 'header force-visible))
1753 (defun mime-preview-toggle-content (&optional force-visible)
1755 (mime-preview-toggle-display 'body force-visible))
1757 (defun mime-preview-show-header ()
1759 (mime-preview-toggle-display 'header 'visible))
1761 (defun mime-preview-show-content ()
1763 (mime-preview-toggle-display 'body 'visible))
1765 (defun mime-preview-hide-header ()
1767 (mime-preview-toggle-display 'header 'invisible))
1769 (defun mime-preview-hide-content ()
1771 (mime-preview-toggle-display 'body 'invisible))
1777 (defun mime-preview-quit ()
1778 "Quit from MIME-preview buffer.
1779 It calls function registered in variable
1780 `mime-preview-quitting-method-alist'."
1782 (let ((r (assq (mime-preview-original-major-mode)
1783 mime-preview-quitting-method-alist)))
1788 (defun mime-preview-kill-buffer ()
1790 (kill-buffer (current-buffer))
1797 (provide 'mime-view)
1799 (let ((file mime-situation-examples-file))
1800 (if (file-readable-p file)
1802 (insert-file-contents file)
1803 (setq mime-situation-examples-file-coding-system
1804 (and (boundp 'buffer-file-coding-system)
1805 buffer-file-coding-system)
1807 ;; ((boundp 'buffer-file-coding-system)
1808 ;; (symbol-value 'buffer-file-coding-system))
1809 ;; ((boundp 'file-coding-system)
1810 ;; (symbol-value 'file-coding-system))
1817 (while (and (> (length mime-preview-situation-example-list)
1818 mime-preview-situation-example-list-max-size)
1820 (setq mime-preview-situation-example-list
1821 (mime-reduce-situation-examples
1822 mime-preview-situation-example-list))
1824 (error (setq mime-preview-situation-example-list nil)))
1825 ;; (let ((rest mime-preview-situation-example-list))
1827 ;; (ctree-set-calist-strictly 'mime-preview-condition
1829 ;; (setq rest (cdr rest))))
1832 (while (and (> (length mime-acting-situation-example-list)
1833 mime-acting-situation-example-list-max-size)
1835 (setq mime-acting-situation-example-list
1836 (mime-reduce-situation-examples
1837 mime-acting-situation-example-list))
1839 (error (setq mime-acting-situation-example-list nil))))))
1841 ;;; mime-view.el ends here