X-Git-Url: http://git.chise.org/gitweb/?a=blobdiff_plain;f=mime-view.el;h=82dbe45fbffdb7b11d8a2d058e5e79ad790ce566;hb=9bae1ecdc3f7feb67ae2c19fd3f07f96d020f220;hp=f8a44c40cf84b9d24e756cb2d5960a582a56176c;hpb=cf42316783520420a485a82d29825aa4d330c16c;p=elisp%2Fsemi.git

diff --git a/mime-view.el b/mime-view.el
index f8a44c4..82dbe45 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
 
@@ -31,7 +31,7 @@
 (require 'mel)
 (require 'eword-decode)
 (require 'mime-parse)
-(require 'mime-text)
+(require 'semi-def)
 (require 'calist)
 
 
@@ -39,9 +39,9 @@
 ;;;
 
 (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) ")"))
 
 
 ;;; @ buffer local variables
@@ -93,14 +93,118 @@ 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
 ;;;
 
-(defvar mime-view-content-button-visible-ctype-list
-  '("application/pgp"))
+;;; @@ entity-button
+;;;
+
+;;; @@@ predicate function
+;;;
+
+(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."
@@ -153,36 +257,11 @@ message/partial, it is called `mother-buffer'.")
      (function mime-preview-play-current-entity))
     ))
 
-(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."
-  (and (not (mime-root-entity-p entity))
-       (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)))
-			)
-		      ))))))
-
-(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."
-  (if (mime-view-entity-button-visible-p entity message-info)
-      (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
@@ -191,14 +270,13 @@ Please redefine this function if you want to change default setting."
 (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)
-	)))
-
-;;; @@ entity header filter
+    (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)
@@ -208,20 +286,7 @@ 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
@@ -264,93 +329,139 @@ 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-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 '((type . message)(subtype . rfc822)
+			   (childrens-situation (header . visible))))
+
+(ctree-set-calist-strictly
+ 'mime-preview-condition '((type . message)(subtype . news)
+			   (childrens-situation (header . visible))))
+
+(ctree-set-calist-strictly
+ 'mime-preview-condition '((body . visible)
+			   (body-presentation-method . with-filter)
+			   (body-filter . mime-preview-filter-for-text/plain)))
+
+(ctree-set-calist-strictly
+ 'mime-preview-condition '((type . nil)
+			   (body . visible)
+			   (body-presentation-method . with-filter)
+			   (body-filter . mime-preview-filter-for-text/plain)))
+
+(ctree-set-calist-strictly
+ 'mime-preview-condition '((type . text)(subtype . enriched)
+			   (body . visible)
+			   (body-presentation-method . with-filter)
+			   (body-filter
+			    . mime-preview-filter-for-text/enriched)))
+
+(ctree-set-calist-strictly
+ 'mime-preview-condition '((type . text)(subtype . richtext)
+			   (body . visible)
+			   (body-presentation-method . with-filter)
+			   (body-filter
+			    . mime-preview-filter-for-text/richtext)))
+
+(ctree-set-calist-strictly
+ 'mime-preview-condition '((type . text)(subtype . t)
+			   (body . visible)
+			   (body-presentation-method . with-filter)
+			   (body-filter . mime-preview-filter-for-text/plain)))
+
+(ctree-set-calist-strictly
+ 'mime-preview-condition '((type . message)(subtype . partial)
+			   (body-presentation-method
+			    . mime-view-insert-message/partial-button)))
 
 (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
+  (ctree-match-calist mime-preview-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))))
+
+
+;;; @@@ 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-filter-for-text/plain "mime-text")
+(autoload 'mime-preview-filter-for-text/enriched "mime-text")
+(autoload 'mime-preview-filter-for-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)
@@ -363,7 +474,7 @@ function.  t means default media-type.")
 \[[ Please press `v' key in this buffer.         ]]"
     ))
 
-(defun mime-view-insert-message/partial-button ()
+(defun mime-view-insert-message/partial-button (&optional situation)
   (save-restriction
     (goto-char (point-max))
     (if (not (search-backward "\n\n" nil t))
@@ -377,18 +488,13 @@ function.  t means default media-type.")
     ))
 
 
-;;; @ entity separator
+;;; @@ entity separator
 ;;;
 
-(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")
-	)))
+(defun mime-view-entity-separator-visible-p (entity message-info)
+  "Return non-nil if separator is needed for ENTITY."
+  (and (not (mime-view-header-visible-p entity message-info))
+       (not (mime-view-body-visible-p entity message-info))))
 
 
 ;;; @ acting-condition
@@ -536,11 +642,9 @@ 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))
@@ -552,10 +656,7 @@ 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-message message-info the-buf obuf)
       (set-buffer-modified-p nil)
       )
     (setq buffer-read-only t)
@@ -564,31 +665,105 @@ 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-message (message-info ibuf obuf)
+  (let* ((start (mime-entity-point-min message-info))
+	 (end (mime-entity-point-max message-info))
+	 (media-type (mime-entity-media-type message-info))
+	 (media-subtype (mime-entity-media-subtype message-info))
+	 (params (mime-entity-parameters message-info))
+	 (encoding (mime-entity-encoding message-info))
+	 end-of-header e nb ne subj)
+    (set-buffer ibuf)
+    (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 start end)
+      (setq subj
+	    (eword-decode-string
+	     (mime-raw-get-subject params encoding)))
+      )
+    (set-buffer obuf)
+    (setq nb (point))
+    (narrow-to-region nb nb)
+    ;; Insert message-header
+    (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)
+	  ))
+      (run-hooks 'mime-view-content-header-filter-hook)
+      )
+    (let* ((situation
+	    (ctree-match-calist mime-preview-condition
+				(list* (cons 'type       media-type)
+				       (cons 'subtype    media-subtype)
+				       (cons 'encoding   encoding)
+				       (cons 'major-mode major-mode)
+				       params)))
+	   (message-button
+	    (cdr (assq 'message-button situation)))
+	   (body-presentation-method
+	    (cdr (assq 'body-presentation-method situation))))
+      (when message-button
+	(goto-char (point-max))
+	(mime-view-insert-entity-button message-info message-info subj)
+	)
+      (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 situation)
+	     )
+	    ((null (mime-entity-children message-info))
+	     (goto-char (point-max))
+	     (mime-view-insert-entity-button message-info message-info subj)
+	     ))
+      (setq ne (point-max))
+      (widen)
+      (put-text-property nb ne 'mime-view-raw-buffer ibuf)
+      (put-text-property nb ne 'mime-view-entity message-info)
+      (goto-char ne)
+      (let ((children (mime-entity-children message-info))
+	    (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-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)
+	 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)
+      (narrow-to-region start end)
       (setq subj
 	    (eword-decode-string
 	     (mime-raw-get-subject params encoding)))
@@ -596,36 +771,59 @@ The compressed face will be piped to this command.")
     (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 (mime-view-entity-button-visible-p entity message-info)
+	(mime-view-insert-entity-button entity message-info subj)
       )
-    (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)
-    ))
+    (let* ((situation
+	    (ctree-match-calist mime-preview-condition
+				(list* (cons 'type       media-type)
+				       (cons 'subtype    media-subtype)
+				       (cons 'encoding   encoding)
+				       (cons 'major-mode major-mode)
+				       (append params
+					       default-situation))))
+	   (header-is-visible
+	    (cdr (assq 'header situation)))
+	   (body-presentation-method
+	    (cdr (assq 'body-presentation-method situation))))
+      (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)
+		))
+	    (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 situation)
+	     ))
+      (when (mime-view-entity-separator-visible-p entity message-info)
+	(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 (param &optional encoding)
   (if (member (or encoding
@@ -655,85 +853,6 @@ The compressed face will be piped to this command.")
       ""))
 
 
-;;; @ 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-id)))
-
-(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))
-
-
 ;;; @ MIME viewer mode
 ;;;