X-Git-Url: http://git.chise.org/gitweb/?a=blobdiff_plain;f=mime-view.el;h=03bdcbf41f8aadf50511782bc620c6d5c289a4e2;hb=9fe7cf94b373e21d85ae49b7267784444ed5a8f0;hp=05d6b4295f6c2b7e4243f7828dcadbfaecf7c681;hpb=5c26f587b16801ba85892e61bbb754a4fce82f4b;p=elisp%2Fsemi.git

diff --git a/mime-view.el b/mime-view.el
index 05d6b42..03bdcbf 100644
--- a/mime-view.el
+++ b/mime-view.el
@@ -3,8 +3,8 @@
 ;; Copyright (C) 1995,1996,1997,1998 Free Software Foundation, Inc.
 
 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
-;; Created: 1994/7/13
-;;	Renamed: 1994/8/31 from tm-body.el
+;; Created: 1994/07/13
+;;	Renamed: 1994/08/31 from tm-body.el
 ;;	Renamed: 1997/02/19 from tm-view.el
 ;; Keywords: MIME, multimedia, mail, news
 
@@ -31,17 +31,36 @@
 (require 'mel)
 (require 'eword-decode)
 (require 'mime-parse)
-(require 'mime-text)
+(require 'semi-def)
 (require 'calist)
+(require 'mailcap)
 
 
 ;;; @ version
 ;;;
 
 (defconst mime-view-version-string
-  `,(concat "SEMI MIME-View "
-	    (mapconcat #'number-to-string (cdr semi-version) ".")
-	    " (" (car semi-version) ")"))
+  `,(concat (car mime-module-version) " MIME-View "
+	    (mapconcat #'number-to-string (cddr mime-module-version) ".")
+	    " (" (cadr mime-module-version) ")"))
+
+
+;;; @ variables
+;;;
+
+(defgroup mime-view nil
+  "MIME view mode"
+  :group 'mime)
+
+(defcustom mime-view-find-every-acting-situation t
+  "*Find every available acting-situation if non-nil."
+  :group 'mime-view
+  :type 'boolean)
+
+(defcustom mime-acting-situation-examples-file "~/.mime-example"
+  "*File name of example about acting-situation demonstrated by user."
+  :group 'mime-view
+  :type 'file)
 
 
 ;;; @ buffer local variables
@@ -93,14 +112,118 @@ message/partial, it is called `mother-buffer'.")
   "Major-mode of mime-raw-buffer.")
 (make-variable-buffer-local 'mime-preview-original-major-mode)
 
+(defvar mime-preview-original-window-configuration nil
+  "Window-configuration before mime-view-mode is called.")
 (make-variable-buffer-local 'mime-preview-original-window-configuration)
 
 
-;;; @ entity-button
+;;; @ entity information
+;;;
+
+(defsubst mime-raw-find-entity-from-node-id (entity-node-id
+					     &optional message-info)
+  "Return entity from ENTITY-NODE-ID in mime-raw-buffer.
+If optional argument MESSAGE-INFO is not specified,
+`mime-raw-message-info' is used."
+  (mime-raw-find-entity-from-number (reverse entity-node-id) message-info))
+
+(defun mime-raw-find-entity-from-number (entity-number &optional message-info)
+  "Return entity from ENTITY-NUMBER in mime-raw-buffer.
+If optional argument MESSAGE-INFO is not specified,
+`mime-raw-message-info' is used."
+  (or message-info
+      (setq message-info mime-raw-message-info))
+  (if (eq entity-number t)
+      message-info
+    (let ((sn (car entity-number)))
+      (if (null sn)
+	  message-info
+	(let ((rc (nth sn (mime-entity-children message-info))))
+	  (if rc
+	      (mime-raw-find-entity-from-number (cdr entity-number) rc)
+	    ))
+	))))
+
+(defun mime-raw-find-entity-from-point (point &optional message-info)
+  "Return entity from POINT in mime-raw-buffer.
+If optional argument MESSAGE-INFO is not specified,
+`mime-raw-message-info' is used."
+  (or message-info
+      (setq message-info mime-raw-message-info))
+  (if (and (<= (mime-entity-point-min message-info) point)
+	   (<= point (mime-entity-point-max message-info)))
+      (let ((children (mime-entity-children message-info)))
+	(catch 'tag
+	  (while children
+	    (let ((ret
+		   (mime-raw-find-entity-from-point point (car children))))
+	      (if ret
+		  (throw 'tag ret)
+		))
+	    (setq children (cdr children)))
+	  message-info))))
+
+(defsubst mime-raw-point-to-entity-node-id (point &optional message-info)
+  "Return entity-node-id from POINT in mime-raw-buffer.
+If optional argument MESSAGE-INFO is not specified,
+`mime-raw-message-info' is used."
+  (mime-entity-node-id (mime-raw-find-entity-from-point point message-info)))
+
+(defsubst mime-raw-point-to-entity-number (point &optional message-info)
+  "Return entity-number from POINT in mime-raw-buffer.
+If optional argument MESSAGE-INFO is not specified,
+`mime-raw-message-info' is used."
+  (reverse (mime-raw-point-to-entity-node-id point message-info)))
+
+(defsubst mime-raw-entity-parent (entity &optional message-info)
+  "Return mother entity of ENTITY.
+If optional argument MESSAGE-INFO is not specified,
+`mime-raw-message-info' is used."
+  (mime-raw-find-entity-from-node-id (cdr (mime-entity-node-id entity))
+				     message-info))
+
+(defun mime-raw-flatten-message-info (&optional message-info)
+  "Return list of entity in mime-raw-buffer.
+If optional argument MESSAGE-INFO is not specified,
+`mime-raw-message-info' is used."
+  (or message-info
+      (setq message-info mime-raw-message-info))
+  (let ((dest (list message-info))
+	(rcl (mime-entity-children message-info)))
+    (while rcl
+      (setq dest (nconc dest (mime-raw-flatten-message-info (car rcl))))
+      (setq rcl (cdr rcl)))
+    dest))
+
+
+;;; @ presentation of preview
+;;;
+
+;;; @@ entity-button
+;;;
+
+;;; @@@ predicate function
 ;;;
 
-(defvar mime-view-content-button-visible-ctype-list
-  '("application/pgp"))
+(defun mime-view-entity-button-visible-p (entity message-info)
+  "Return non-nil if header of ENTITY is visible.
+Please redefine this function if you want to change default setting."
+  (let ((media-type (mime-entity-media-type entity))
+	(media-subtype (mime-entity-media-subtype entity)))
+    (or (not (eq media-type 'application))
+	(and (not (eq media-subtype 'x-selection))
+	     (or (not (eq media-subtype 'octet-stream))
+		 (let ((mother-entity
+			(mime-raw-entity-parent entity message-info)))
+		   (or (not (eq (mime-entity-media-type mother-entity)
+				'multipart))
+		       (not (eq (mime-entity-media-subtype mother-entity)
+				'encrypted)))
+		   )
+		 )))))
+
+;;; @@@ entity button generator
+;;;
 
 (defun mime-view-insert-entity-button (entity message-info subj)
   "Insert entity-button of ENTITY."
@@ -153,48 +276,26 @@ message/partial, it is called `mother-buffer'.")
      (function mime-preview-play-current-entity))
     ))
 
-(defun mime-view-entity-button-function (entity message-info subj)
-  "Insert entity-button of ENTITY conditionally.
-Please redefine this function if you want to change default setting."
-  (let ((entity-node-id (mime-entity-node-id entity))
-	(media-type (mime-entity-media-type entity))
-	(media-subtype (mime-entity-media-subtype entity)))
-    (or (mime-root-entity-p entity)
-	(and (eq media-type 'application)
-	     (or (eq media-subtype 'x-selection)
-		 (and (eq media-subtype 'octet-stream)
-		      (let ((mother-entity
-			     (mime-raw-find-entity-from-node-id
-			      (cdr entity-node-id) message-info)))
-			(and (eq (mime-entity-media-type mother-entity)
-				 'multipart)
-			     (eq (mime-entity-media-subtype mother-entity)
-				 'encrypted)
-			     )))))
-	(mime-view-insert-entity-button entity message-info subj)
-	)))
-
 
-;;; @ entity-header
+;;; @@ entity-header
 ;;;
 
-;;; @@ predicate function
+;;; @@@ predicate function
 ;;;
 
-(defvar mime-view-childrens-header-showing-Content-Type-list
-  '("message/rfc822" "message/news"))
-
-(defun mime-view-header-visible-p (entity message-info)
-  "Return non-nil if header of ENTITY is visible."
-  (let ((entity-node-id (mime-entity-node-id entity)))
-    (or (null entity-node-id)
-	(member (mime-entity-type/subtype
-		 (mime-raw-find-entity-from-node-id
-		  (cdr entity-node-id) message-info))
-		mime-view-childrens-header-showing-Content-Type-list)
-	)))
+;; (defvar mime-view-childrens-header-showing-Content-Type-list
+;;   '("message/rfc822" "message/news"))
 
-;;; @@ entity header filter
+;; (defun mime-view-header-visible-p (entity message-info)
+;;   "Return non-nil if header of ENTITY is visible."
+;;   (let ((entity-node-id (mime-entity-node-id entity)))
+;;     (member (mime-entity-type/subtype
+;;              (mime-raw-find-entity-from-node-id
+;;               (cdr entity-node-id) message-info))
+;;             mime-view-childrens-header-showing-Content-Type-list)
+;;     ))
+
+;;; @@@ entity header filter
 ;;;
 
 (defvar mime-view-content-header-filter-alist nil)
@@ -204,20 +305,7 @@ Please redefine this function if you want to change default setting."
   (eword-decode-header)
   )
 
-(defun mime-view-display-header (beg end)
-  (save-restriction
-    (narrow-to-region (point)(point))
-    (insert-buffer-substring mime-raw-buffer beg end)
-    (let ((f (cdr (assq mime-preview-original-major-mode
-			mime-view-content-header-filter-alist))))
-      (if (functionp f)
-	  (funcall f)
-	(mime-view-default-content-header-filter)
-	))
-    (run-hooks 'mime-view-content-header-filter-hook)
-    ))
-
-;;; @@ entity field cutter
+;;; @@@ entity field cutter
 ;;;
 
 (defvar mime-view-ignored-field-list
@@ -260,93 +348,132 @@ Each elements are regexp of field-name.")
 	))))
 
 
-;;; @ entity-body
+;;; @@ entity-body
 ;;;
 
-;;; @@ predicate function
+;;; @@@ predicate function
 ;;;
 
-(defvar mime-view-body-visible-condition
-  '(type
-    (nil)
-    (text subtype
-	  (plain)
-	  (enriched)
-	  (rfc822-headers)
-	  (richtext)
-	  (x-latex)
-	  (x-pgp))
-    (application subtype
-		 (octet-stream encoding
-			       (nil)
-			       ("7bit")
-			       ("8bit"))
-		 (pgp)
-		 (x-latex)
-		 (x-selection)
-		 (x-comment))
-    (message subtype
-	     (delivery-status)))
-  "Condition-tree to be able to display body of entity.")
-
-(defun mime-view-body-visible-p (entity message-info)
-  "Return non-nil if body of ENTITY is visible."
-  (ctree-match-calist
-   mime-view-body-visible-condition
-   (list* (cons 'type (mime-entity-media-type entity))
-	  (cons 'subtype (mime-entity-media-subtype entity))
-	  (cons 'encoding (mime-entity-encoding entity))
-	  (cons 'major-mode major-mode)
-	  (mime-entity-parameters entity))))
-
-;; (defvar mime-view-visible-media-type-list
-;;   '("text/plain" nil "text/richtext" "text/enriched"
-;;     "text/rfc822-headers"
-;;     "text/x-latex" "application/x-latex"
-;;     "message/delivery-status"
-;;     "application/pgp" "text/x-pgp"
-;;     "application/octet-stream"
-;;     "application/x-selection" "application/x-comment")
-;;   "*List of media-types to be able to display in MIME-preview buffer.
-;; Each elements are string of TYPE/SUBTYPE, e.g. \"text/plain\".")
-
-;; (defun mime-view-body-visible-p (entity message-info)
-;;   "Return non-nil if body of ENTITY is visible."
-;;   (let ((media-type (mime-entity-media-type entity))
-;;         (media-subtype (mime-entity-media-subtype entity))
-;;         (ctype (mime-entity-type/subtype entity)))
-;;     (and (member ctype mime-view-visible-media-type-list)
-;;          (if (and (eq media-type 'application)
-;;                   (eq media-subtype 'octet-stream))
-;;              (member (mime-entity-encoding entity) '(nil "7bit" "8bit"))
-;;            t))))
-
-
-;;; @@ entity filter
+(defun mime-calist::field-match-method-as-default-rule (calist
+							field-type field-value)
+  (let ((s-field (assq field-type calist)))
+    (cond ((null s-field)
+	   (cons (cons field-type field-value) calist)
+	   )
+	  (t calist))))
+
+(define-calist-field-match-method
+  'header #'mime-calist::field-match-method-as-default-rule)
+
+(define-calist-field-match-method
+  'body #'mime-calist::field-match-method-as-default-rule)
+
+
+(defvar mime-preview-condition nil
+  "Condition-tree about how to display entity.")
+
+(ctree-set-calist-strictly
+ 'mime-preview-condition '((type . application)(subtype . octet-stream)
+			   (encoding . nil)
+			   (body . visible)))
+(ctree-set-calist-strictly
+ 'mime-preview-condition '((type . application)(subtype . octet-stream)
+			   (encoding . "7bit")
+			   (body . visible)))
+(ctree-set-calist-strictly
+ 'mime-preview-condition '((type . application)(subtype . octet-stream)
+			   (encoding . "8bit")
+			   (body . visible)))
+
+(ctree-set-calist-strictly
+ 'mime-preview-condition '((type . application)(subtype . pgp)
+			   (body . visible)))
+
+(ctree-set-calist-strictly
+ 'mime-preview-condition '((type . application)(subtype . x-latex)
+			   (body . visible)))
+
+(ctree-set-calist-strictly
+ 'mime-preview-condition '((type . application)(subtype . x-selection)
+			   (body . visible)))
+
+(ctree-set-calist-strictly
+ 'mime-preview-condition '((type . application)(subtype . x-comment)
+			   (body . visible)))
+
+(ctree-set-calist-strictly
+ 'mime-preview-condition '((type . message)(subtype . delivery-status)
+			   (body . visible)))
+
+(ctree-set-calist-strictly
+ 'mime-preview-condition
+ '((body . visible)
+   (body-presentation-method . mime-preview-text/plain)))
+
+(ctree-set-calist-strictly
+ 'mime-preview-condition
+ '((type . nil)
+   (body . visible)
+   (body-presentation-method . mime-preview-text/plain)))
+
+(ctree-set-calist-strictly
+ 'mime-preview-condition
+ '((type . text)(subtype . enriched)
+   (body . visible)
+   (body-presentation-method . mime-preview-text/enriched)))
+
+(ctree-set-calist-strictly
+ 'mime-preview-condition
+ '((type . text)(subtype . richtext)
+   (body . visible)
+   (body-presentation-method . mime-preview-text/richtext)))
+
+(ctree-set-calist-strictly
+ 'mime-preview-condition
+ '((type . text)(subtype . t)
+   (body . visible)
+   (body-presentation-method . mime-preview-text/plain)))
+
+(ctree-set-calist-strictly
+ 'mime-preview-condition '((type . message)(subtype . partial)
+			   (body-presentation-method
+			    . mime-preview-message/partial-button)))
+
+(ctree-set-calist-strictly
+ 'mime-preview-condition '((type . message)(subtype . rfc822)
+			   (body-presentation-method . nil)
+			   (childrens-situation (header . visible)
+						(entity-button . invisible))))
+
+(ctree-set-calist-strictly
+ 'mime-preview-condition '((type . message)(subtype . news)
+			   (body-presentation-method . nil)
+			   (childrens-situation (header . visible)
+						(entity-button . invisible))))
+
+
+;;; @@@ entity filter
 ;;;
 
-(defvar mime-view-content-filter-alist
-  '(("text/enriched" . mime-view-filter-for-text/enriched)
-    ("text/richtext" . mime-view-filter-for-text/richtext)
-    (t . mime-view-filter-for-text/plain)
+(autoload 'mime-preview-text/plain "mime-text")
+(autoload 'mime-preview-text/enriched "mime-text")
+(autoload 'mime-preview-text/richtext "mime-text")
+
+(defvar mime-text-decoder-alist
+  '((mime-show-message-mode	. mime-text-decode-buffer)
+    (mime-temp-message-mode	. mime-text-decode-buffer)
+    (t				. mime-text-decode-buffer-maybe)
     )
-  "Alist of media-types vs. corresponding MIME-preview filter functions.
-Each element looks like (TYPE/SUBTYPE . FUNCTION) or (t . FUNCTION).
-TYPE/SUBTYPE is a string of media-type and FUNCTION is a filter
-function.  t means default media-type.")
+  "Alist of major-mode vs. mime-text-decoder.
+Each element looks like (SYMBOL . FUNCTION).  SYMBOL is major-mode or
+t.  t means default.
+
+Specification of FUNCTION is described in DOC-string of variable
+`mime-text-decoder'.
+
+This value is overridden by buffer local variable `mime-text-decoder'
+if it is not nil.")
 
-(defun mime-view-display-body (start end entity message-info subj)
-  (save-restriction
-    (narrow-to-region (point-max)(point-max))
-    (insert-buffer-substring mime-raw-buffer start end)
-    (let* ((ctype (mime-entity-type/subtype entity))
-	   (params (mime-entity-parameters entity))
-	   (encoding (mime-entity-encoding entity))
-	   (f (cdr (or (assoc ctype mime-view-content-filter-alist)
-		       (assq t mime-view-content-filter-alist)))))
-      (and (functionp f)
-	   (funcall f ctype params encoding))
-      )))
 
 (defvar mime-view-announcement-for-message/partial
   (if (and (>= emacs-major-version 19) window-system)
@@ -359,7 +486,7 @@ function.  t means default media-type.")
 \[[ Please press `v' key in this buffer.         ]]"
     ))
 
-(defun mime-view-insert-message/partial-button ()
+(defun mime-preview-message/partial-button (&optional entity situation)
   (save-restriction
     (goto-char (point-max))
     (if (not (search-backward "\n\n" nil t))
@@ -373,82 +500,133 @@ function.  t means default media-type.")
     ))
 
 
-;;; @ entity separator
+;;; @ acting-condition
 ;;;
 
-(defun mime-view-entity-separator-function (entity message-info)
-  "Insert entity-separator of ENTITY conditionally.
-Please redefine this function if you want to change default setting."
-  (or (mime-view-header-visible-p entity message-info)
-      (mime-view-body-visible-p entity message-info)
-      (progn
-	(goto-char (point-max))
-	(insert "\n")
+(defvar mime-acting-condition nil
+  "Condition-tree about how to process entity.")
+
+(if (file-readable-p mailcap-file)
+    (let ((entries (mailcap-parse-file)))
+      (while entries
+	(let ((entry (car entries))
+	      view print shared)
+	  (while entry
+	    (let* ((field (car entry))
+		   (field-type (car field)))
+	      (cond ((eq field-type 'view)  (setq view field))
+		    ((eq field-type 'print) (setq print field))
+		    ((memq field-type '(compose composetyped edit)))
+		    (t (setq shared (cons field shared))))
+	      )
+	    (setq entry (cdr entry))
+	    )
+	  (setq shared (nreverse shared))
+	  (ctree-set-calist-with-default
+	   'mime-acting-condition
+	   (append shared (list '(mode . "play")(cons 'method (cdr view)))))
+	  (if print
+	      (ctree-set-calist-with-default
+	       'mime-acting-condition
+	       (append shared
+		       (list '(mode . "print")(cons 'method (cdr view))))
+	       ))
+	  )
+	(setq entries (cdr entries))
 	)))
 
-
-;;; @ acting-condition
-;;;
-
-(defvar mime-acting-condition
-  '(((type . text)(subtype . plain)
-     (method "tm-plain" nil 'file "" 'encoding 'mode 'name)
-     (mode "play" "print")
-     )
-    ((type . text)(subtype . html)
-     (method "tm-html" nil 'file "" 'encoding 'mode 'name)
-     (mode . "play")
-     )
-    ((type . text)(subtype . x-rot13-47)
-     (method . mime-method-to-display-caesar)
-     (mode . "play")
-     )
-    ((type . text)(subtype . x-rot13-47-48)
-     (method . mime-method-to-display-caesar)
-     (mode . "play")
-     )
-
-    ((type . audio)(subtype . basic)
-     (method "tm-au"    nil 'file "" 'encoding 'mode 'name)
-     (mode . "play")
-     )
-    
-    ((type . image)
-     (method "tm-image" nil 'file "" 'encoding 'mode 'name)
-     (mode "play" "print")
-     )
-    
-    ((type . video)(subtype . mpeg)
-     (method "tm-mpeg"  nil 'file "" 'encoding 'mode 'name)
-     (mode . "play")
-     )
-    
-    ((type . application)(subtype . postscript)
-     (method "tm-ps" nil 'file "" 'encoding 'mode 'name)
-     (mode "play" "print")
-     )
-    ((type . application)(subtype . octet-stream)
-     (method . mime-method-to-save)(mode "play" "print")
-     )
-
-    ((type . message)(subtype . external-body)
-     ("access-type" . "anon-ftp")
-     (method . mime-method-to-display-message/external-ftp)
-     )
-    ((type . message)(subtype . rfc822)
-     (method . mime-method-to-display-message/rfc822)
-     (mode . "play")
-     )
-    ((type . message)(subtype . partial)
-     (method . mime-method-to-store-message/partial)
-     (mode . "play")
-     )
-    
-    ((method "metamail" t "-m" "tm" "-x" "-d" "-z" "-e" 'file)
-     (mode . "play")
-     )
-    ((method . mime-method-to-save)(mode . "extract"))
-    ))
+;; (ctree-set-calist-strictly
+;;  'mime-acting-condition
+;;  '((type . t)(subtype . t)(mode . "extract")
+;;    (method . mime-method-to-save)))
+(ctree-set-calist-with-default
+ 'mime-acting-condition
+ '((mode . "extract")
+   (method . mime-method-to-save)))
+
+;; (ctree-set-calist-strictly
+;;  'mime-acting-condition
+;;  '((type . text)(subtype . plain)(mode . "play")
+;;    (method "tm-plain" nil 'file "" 'encoding 'mode 'name)
+;;    ))
+;; (ctree-set-calist-strictly
+;;  'mime-acting-condition
+;;  '((type . text)(subtype . plain)(mode . "print")
+;;    (method "tm-plain" nil 'file "" 'encoding 'mode 'name)
+;;    ))
+;; (ctree-set-calist-strictly
+;;  'mime-acting-condition
+;;  '((type . text)(subtype . html)(mode . "play")
+;;    (method "tm-html" nil 'file "" 'encoding 'mode 'name)
+;;    ))
+(ctree-set-calist-strictly
+ 'mime-acting-condition
+ '((type . text)(subtype . x-rot13-47)(mode . "play")
+   (method . mime-method-to-display-caesar)
+   ))
+(ctree-set-calist-strictly
+ 'mime-acting-condition
+ '((type . text)(subtype . x-rot13-47-48)(mode . "play")
+   (method . mime-method-to-display-caesar)
+   ))
+
+;; (ctree-set-calist-strictly
+;;  'mime-acting-condition
+;;  '((type . audio)(subtype . basic)(mode . "play")
+;;    (method "tm-au" nil 'file "" 'encoding 'mode 'name)
+;;    ))
+
+;; (ctree-set-calist-strictly
+;;  'mime-acting-condition
+;;  '((type . image)(mode . "play")
+;;    (method "tm-image" nil 'file "" 'encoding 'mode 'name)
+;;    ))
+;; (ctree-set-calist-strictly
+;;  'mime-acting-condition
+;;  '((type . image)(mode . "print")
+;;    (method "tm-image" nil 'file "" 'encoding 'mode 'name)
+;;    ))
+
+;; (ctree-set-calist-strictly
+;;  'mime-acting-condition
+;;  '((type . video)(subtype . mpeg)(mode . "play")
+;;    (method "tm-mpeg" nil 'file "" 'encoding 'mode 'name)
+;;    ))
+
+;; (ctree-set-calist-strictly
+;;  'mime-acting-condition
+;;  '((type . application)(subtype . postscript)(mode . "play")
+;;    (method "tm-ps" nil 'file "" 'encoding 'mode 'name)
+;;    ))
+;; (ctree-set-calist-strictly
+;;  'mime-acting-condition
+;;  '((type . application)(subtype . postscript)(mode . "print")
+;;    (method "tm-ps" nil 'file "" 'encoding 'mode 'name)
+;;    ))
+
+(ctree-set-calist-strictly
+ 'mime-acting-condition
+ '((type . message)(subtype . rfc822)(mode . "play")
+   (method . mime-method-to-display-message/rfc822)
+   ))
+(ctree-set-calist-strictly
+ 'mime-acting-condition
+ '((type . message)(subtype . partial)(mode . "play")
+   (method . mime-method-to-store-message/partial)
+   ))
+
+(ctree-set-calist-strictly
+ 'mime-acting-condition
+ '((type . message)(subtype . external-body)
+   ("access-type" . "anon-ftp")
+   (method . mime-method-to-display-message/external-ftp)
+   ))
+
+(ctree-set-calist-strictly
+ 'mime-acting-condition
+ '((type . application)(subtype . octet-stream)
+   (method . mime-method-to-save)
+   ))
 
 
 ;;; @ quitting method
@@ -532,11 +710,9 @@ The compressed face will be piped to this command.")
   (or mime-view-redisplay
       (setq mime-raw-message-info (mime-parse-message ctl encoding))
       )
-  (let* ((message-info mime-raw-message-info)
-	 (pcl (mime-raw-flatten-message-info message-info))
-	 (the-buf (current-buffer))
-	 (mode major-mode)
-	 )
+  (let ((message-info mime-raw-message-info)
+	(the-buf (current-buffer))
+	(mode major-mode))
     (or obuf
 	(setq obuf (concat "*Preview-" (buffer-name the-buf) "*")))
     (set-buffer (get-buffer-create obuf))
@@ -548,10 +724,11 @@ The compressed face will be piped to this command.")
       (setq mime-preview-original-major-mode mode)
       (setq major-mode 'mime-view-mode)
       (setq mode-name "MIME-View")
-      (while pcl
-	(mime-view-display-entity (car pcl) message-info the-buf obuf)
-	(setq pcl (cdr pcl))
-	)
+      (mime-view-display-entity message-info message-info
+				the-buf obuf
+				'((entity-button . invisible)
+				  (header . visible)
+				  ))
       (set-buffer-modified-p nil)
       )
     (setq buffer-read-only t)
@@ -560,167 +737,118 @@ The compressed face will be piped to this command.")
   (setq mime-preview-buffer obuf)
   )
 
-(defun mime-view-display-entity (entity message-info ibuf obuf)
-  "Display ENTITY."
-  (let* ((beg (mime-entity-point-min entity))
+(defun mime-view-display-entity (entity message-info ibuf obuf
+					default-situation)
+  (let* ((start (mime-entity-point-min entity))
 	 (end (mime-entity-point-max entity))
-	 (media-type (mime-entity-media-type entity))
-	 (media-subtype (mime-entity-media-subtype entity))
-	 (ctype (if media-type
-		    (if media-subtype
-			(format "%s/%s" media-type media-subtype)
-		      (symbol-name media-type)
-		      )))
-	 (params (mime-entity-parameters entity))
-	 (encoding (mime-entity-encoding entity))
-	 (entity-node-id (mime-entity-node-id entity))
-	 he e nb ne subj)
+         (content-type (mime-entity-content-type entity))
+         (encoding (mime-entity-encoding entity))
+	 end-of-header e nb ne subj)
     (set-buffer ibuf)
-    (goto-char beg)
-    (setq he (if (re-search-forward "^$" nil t)
-		 (1+ (match-end 0))
-	       end))
-    (if (> he end)
-	(setq he end)
+    (goto-char start)
+    (setq end-of-header (if (re-search-forward "^$" nil t)
+			    (1+ (match-end 0))
+			  end))
+    (if (> end-of-header end)
+	(setq end-of-header end)
       )
     (save-restriction
-      (narrow-to-region beg end)
-      (setq subj
-	    (eword-decode-string
-	     (mime-raw-get-subject params encoding)))
+      (narrow-to-region start end)
+      (setq subj (eword-decode-string (mime-raw-get-subject entity)))
       )
-    (set-buffer obuf)
-    (setq nb (point))
-    (narrow-to-region nb nb)
-    (mime-view-entity-button-function entity message-info subj)
-    (if (mime-view-header-visible-p entity message-info)
-	(mime-view-display-header beg he)
-      )
-    (if (and (null entity-node-id)
-	     (member
-	      ctype mime-view-content-button-visible-ctype-list))
-	(save-excursion
-	  (goto-char (point-max))
-	  (mime-view-insert-entity-button entity message-info subj)
-	  ))
-    (cond ((mime-view-body-visible-p entity message-info)
-	   (mime-view-display-body he end entity message-info subj)
-	   )
-	  ((and (eq media-type 'message)(eq media-subtype 'partial))
-	   (mime-view-insert-message/partial-button)
-	   )
-	  ((and (null entity-node-id)
-		(null (mime-entity-children message-info))
-		)
-	   (goto-char (point-max))
-	   (mime-view-insert-entity-button entity message-info subj)
-	   ))
-    (mime-view-entity-separator-function entity message-info)
-    (setq ne (point-max))
-    (widen)
-    (put-text-property nb ne 'mime-view-raw-buffer ibuf)
-    (put-text-property nb ne 'mime-view-entity entity)
-    (goto-char ne)
-    ))
-
-(defun mime-raw-get-uu-filename (param &optional encoding)
-  (if (member (or encoding
-		  (cdr (assq 'encoding param))
-		  )
-	      mime-view-uuencode-encoding-name-list)
-      (save-excursion
-	(or (if (re-search-forward "^begin [0-9]+ " nil t)
-		(if (looking-at ".+$")
-		    (buffer-substring (match-beginning 0)(match-end 0))
-		  ))
-	    ""))
-    ))
-
-(defun mime-raw-get-subject (param &optional encoding)
-  (or (std11-find-field-body '("Content-Description" "Subject"))
-      (let (ret)
-	(if (or (and (setq ret (mime/Content-Disposition))
-		     (setq ret (assoc "filename" (cdr ret)))
-		     )
-		(setq ret (assoc "name" param))
-		(setq ret (assoc "x-name" param))
-		)
-	    (std11-strip-quoted-string (cdr ret))
-	  ))
-      (mime-raw-get-uu-filename param encoding)
-      ""))
-
-
-;;; @ entity information
-;;;
-
-(defsubst mime-raw-find-entity-from-node-id (entity-node-id
-					     &optional message-info)
-  "Return entity from ENTITY-NODE-ID in mime-raw-buffer.
-If optional argument MESSAGE-INFO is not specified,
-`mime-raw-message-info' is used."
-  (mime-raw-find-entity-from-number (reverse entity-node-id) message-info))
-
-(defun mime-raw-find-entity-from-number (entity-number &optional message-info)
-  "Return entity from ENTITY-NUMBER in mime-raw-buffer.
-If optional argument MESSAGE-INFO is not specified,
-`mime-raw-message-info' is used."
-  (or message-info
-      (setq message-info mime-raw-message-info))
-  (if (eq entity-number t)
-      message-info
-    (let ((sn (car entity-number)))
-      (if (null sn)
-	  message-info
-	(let ((rc (nth sn (mime-entity-children message-info))))
-	  (if rc
-	      (mime-raw-find-entity-from-number (cdr entity-number) rc)
+    (let* ((situation
+	    (or
+	     (ctree-match-calist mime-preview-condition
+				 (append
+				  (or content-type
+				      (make-mime-content-type 'text 'plain))
+				  (list* (cons 'encoding   encoding)
+					 (cons 'major-mode major-mode)
+					 default-situation)))
+	     default-situation))
+	   (button-is-invisible
+	    (eq (cdr (assq 'entity-button situation)) 'invisible))
+	   (header-is-visible
+	    (eq (cdr (assq 'header situation)) 'visible))
+	   (body-presentation-method
+	    (cdr (assq 'body-presentation-method situation))))
+      (set-buffer obuf)
+      (setq nb (point))
+      (narrow-to-region nb nb)
+      (or button-is-invisible
+	  (if (mime-view-entity-button-visible-p entity message-info)
+	      (mime-view-insert-entity-button entity message-info subj)
 	    ))
-	))))
-
-(defun mime-raw-find-entity-from-point (point &optional message-info)
-  "Return entity from POINT in mime-raw-buffer.
-If optional argument MESSAGE-INFO is not specified,
-`mime-raw-message-info' is used."
-  (or message-info
-      (setq message-info mime-raw-message-info))
-  (if (and (<= (mime-entity-point-min message-info) point)
-	   (<= point (mime-entity-point-max message-info)))
-      (let ((children (mime-entity-children message-info)))
-	(catch 'tag
-	  (while children
-	    (let ((ret
-		   (mime-raw-find-entity-from-point point (car children))))
-	      (if ret
-		  (throw 'tag ret)
+      (if header-is-visible
+	  (save-restriction
+	    (narrow-to-region (point)(point))
+	    (insert-buffer-substring mime-raw-buffer start end-of-header)
+	    (let ((f (cdr (assq mime-preview-original-major-mode
+				mime-view-content-header-filter-alist))))
+	      (if (functionp f)
+		  (funcall f)
+		(mime-view-default-content-header-filter)
 		))
-	    (setq children (cdr children)))
-	  message-info))))
-
-(defsubst mime-raw-point-to-entity-node-id (point &optional message-info)
-  "Return entity-node-id from POINT in mime-raw-buffer.
-If optional argument MESSAGE-INFO is not specified,
-`mime-raw-message-info' is used."
-  (mime-entity-node-id (mime-raw-find-entity-from-point point message-info)))
-
-(defsubst mime-raw-point-to-entity-number (point &optional message-info)
-  "Return entity-number from POINT in mime-raw-buffer.
-If optional argument MESSAGE-INFO is not specified,
-`mime-raw-message-info' is used."
-  (reverse (mime-raw-point-to-entity-node-id point message-id)))
+	    (run-hooks 'mime-view-content-header-filter-hook)
+	    ))
+      (cond ((eq body-presentation-method 'with-filter)
+	     (let ((body-filter (cdr (assq 'body-filter situation))))
+	       (save-restriction
+		 (narrow-to-region (point-max)(point-max))
+		 (insert-buffer-substring mime-raw-buffer end-of-header end)
+		 (funcall body-filter situation)
+		 )))
+	    ((functionp body-presentation-method)
+	     (funcall body-presentation-method entity situation)
+	     ))
+      (or header-is-visible
+	  body-presentation-method
+	  (progn
+	    (goto-char (point-max))
+	    (insert "\n")
+	    ))
+      (setq ne (point-max))
+      (widen)
+      (put-text-property nb ne 'mime-view-raw-buffer ibuf)
+      (put-text-property nb ne 'mime-view-entity entity)
+      (goto-char ne)
+      (let ((children (mime-entity-children entity))
+	    (default-situation
+	      (cdr (assq 'childrens-situation situation))))
+	(while children
+	  (mime-view-display-entity (car children) message-info ibuf obuf
+				    default-situation)
+	  (setq children (cdr children))
+	  )))))
+
+(defun mime-raw-get-uu-filename ()
+  (save-excursion
+    (if (re-search-forward "^begin [0-9]+ " nil t)
+	(if (looking-at ".+$")
+	    (buffer-substring (match-beginning 0)(match-end 0))
+	  ))))
 
-(defun mime-raw-flatten-message-info (&optional message-info)
-  "Return list of entity in mime-raw-buffer.
-If optional argument MESSAGE-INFO is not specified,
-`mime-raw-message-info' is used."
-  (or message-info
-      (setq message-info mime-raw-message-info))
-  (let ((dest (list message-info))
-	(rcl (mime-entity-children message-info)))
-    (while rcl
-      (setq dest (nconc dest (mime-raw-flatten-message-info (car rcl))))
-      (setq rcl (cdr rcl)))
-    dest))
+(defun mime-raw-get-subject (entity)
+  (or (std11-find-field-body '("Content-Description" "Subject"))
+      (let ((ret (mime-entity-content-disposition entity)))
+	(and ret
+	     (setq ret (mime-content-disposition-filename ret))
+	     (std11-strip-quoted-string ret)
+	     ))
+      (let ((ret (mime-entity-content-type entity)))
+	(and ret
+	     (setq ret
+		   (cdr
+		    (let ((param (mime-content-type-parameters ret)))
+		      (or (assoc "name" param)
+			  (assoc "x-name" param))
+		      )))
+	     (std11-strip-quoted-string ret)
+	     ))
+      (if (member (mime-entity-encoding entity)
+		  mime-view-uuencode-encoding-name-list)
+	  (mime-raw-get-uu-filename))
+      ""))
 
 
 ;;; @ MIME viewer mode
@@ -952,8 +1080,7 @@ of the mother-buffer."
 It calls following-method selected from variable
 `mime-view-following-method-alist'."
   (interactive)
-  (let ((message-info (get-text-property (point-min) 'mime-view-entity))
-	entity)
+  (let (entity)
     (while (null (setq entity
 		       (get-text-property (point) 'mime-view-entity)))
       (backward-char)
@@ -1016,16 +1143,7 @@ It calls following-method selected from variable
 	  (erase-buffer)
 	  (insert-buffer-substring the-buf p-beg p-end)
 	  (goto-char (point-min))
-	  (if (mime-view-header-visible-p entity message-info)
-	      (delete-region (goto-char (point-min))
-			     (if (re-search-forward "^$" nil t)
-				 (match-end 0)
-			       (point-min)))
-	    )
-	  (goto-char (point-min))
-	  (insert "\n")
-	  (goto-char (point-min))
-	  (let ((entity-node-id (mime-entity-node-id entity)) ci str)
+          (let ((entity-node-id (mime-entity-node-id entity)) ci str)
 	    (while (progn
 		     (setq
 		      str
@@ -1132,10 +1250,13 @@ variable `mime-view-over-to-previous-method-alist'."
   (while (null (get-text-property (point) 'mime-view-entity))
     (backward-char)
     )
-  (let ((point
-	 (previous-single-property-change (point) 'mime-view-entity)))
+  (let ((point (previous-single-property-change (point) 'mime-view-entity)))
     (if point
-	(goto-char point)
+	(if (get-text-property (1- point) 'mime-view-entity)
+	    (goto-char point)
+	  (goto-char (1- point))
+	  (mime-preview-move-to-previous)
+	  )
       (let ((f (assq mime-preview-original-major-mode
 		     mime-view-over-to-previous-method-alist)))
 	(if f
@@ -1148,9 +1269,16 @@ variable `mime-view-over-to-previous-method-alist'."
 If there is no previous entity, it calls function registered in
 variable `mime-view-over-to-next-method-alist'."
   (interactive)
+  (while (null (get-text-property (point) 'mime-view-entity))
+    (forward-char)
+    )
   (let ((point (next-single-property-change (point) 'mime-view-entity)))
     (if point
-	(goto-char point)
+	(progn
+	  (goto-char point)
+	  (if (null (get-text-property point 'mime-view-entity))
+	      (mime-preview-move-to-next)
+	    ))
       (let ((f (assq mime-preview-original-major-mode
 		     mime-view-over-to-next-method-alist)))
 	(if f
@@ -1198,7 +1326,7 @@ If reached to (point-min), it calls function registered in variable
     (let (point)
       (save-excursion
 	(catch 'tag
-	  (while (> (point) 1)
+	  (while (not (bobp))
 	    (if (setq point
 		      (previous-single-property-change (point)
 						       'mime-view-entity))