X-Git-Url: http://git.chise.org/gitweb/?a=blobdiff_plain;f=mmbuffer.el;h=97fc783236474efef4675cf2cd82edd8962e21f2;hb=abde23d8d029ceaedd5136737b99025ba4f7ed27;hp=0533956551ffc651515987deb76ebefb0fd3d5da;hpb=49f882ede642702d7d54feedf89f3fc828365ea5;p=elisp%2Fflim.git

diff --git a/mmbuffer.el b/mmbuffer.el
index 0533956..97fc783 100644
--- a/mmbuffer.el
+++ b/mmbuffer.el
@@ -1,8 +1,6 @@
 ;;; mmbuffer.el --- MIME entity module for binary buffer
 
-;; Copyright (C) 1998,1999 Free Software Foundation, Inc.
-;; Copyright (C) 1999 Electrotechnical Laboratory, JAPAN.
-;; Licensed to the Free Software Foundation.
+;; Copyright (C) 1998,1999,2000 Free Software Foundation, Inc.
 
 ;; Author: MORIOKA Tomohiko <tomo@m17n.org>
 ;; Keywords: MIME, multimedia, mail, news
@@ -26,6 +24,7 @@
 
 ;;; Code:
 
+(require 'mmgeneric)
 (require 'mime)
 
 (eval-and-compile
@@ -41,36 +40,42 @@
 
 (luna-define-method initialize-instance :after ((entity mime-buffer-entity)
 						&rest init-args)
-  (mime-buffer-entity-set-buffer-internal
-   entity (mime-entity-location-internal entity))
+  (or (mime-buffer-entity-buffer-internal entity)
+      (mime-buffer-entity-set-buffer-internal
+       entity (get-buffer (mime-entity-location-internal entity))))
   (save-excursion
     (set-buffer (mime-buffer-entity-buffer-internal entity))
-    (setq mime-message-structure entity)
-    (let ((header-start (point-min))
-	  header-end
-	  body-start
-	  (body-end (point-max)))
+    (let ((header-start
+	   (or (mime-buffer-entity-header-start-internal entity)
+	       (mime-buffer-entity-set-header-start-internal
+		entity (point-min))))
+	  (header-end (mime-buffer-entity-header-end-internal entity))
+	  (body-start (mime-buffer-entity-body-start-internal entity))
+	  (body-end
+	   (or (mime-buffer-entity-body-end-internal entity)
+	       (mime-buffer-entity-set-body-end-internal entity (point-max)))))
       (goto-char header-start)
-      (if (re-search-forward "^$" nil t)
-	  (setq header-end (match-end 0)
-		body-start (if (= header-end body-end)
-			       body-end
-			     (1+ header-end)))
-	(setq header-end (point-min)
-	      body-start (point-min)))
-      (save-restriction
-	(narrow-to-region header-start header-end)
-	(mime-entity-set-content-type-internal
-	 entity
-	 (let ((str (std11-fetch-field "Content-Type")))
-	   (if str
-	       (mime-parse-Content-Type str)
-	     )))
+      (unless (and header-end body-start)
+	(if (re-search-forward "^$" body-end t)
+	    (setq header-end (match-end 0)
+		  body-start (if (= header-end body-end)
+				 body-end
+			       (1+ header-end)))
+	  (setq header-end (point-min)
+		body-start (point-min)))
+	(mime-buffer-entity-set-header-end-internal entity header-end)
+	(mime-buffer-entity-set-body-start-internal entity body-start)
 	)
-      (mime-buffer-entity-set-header-start-internal entity header-start)
-      (mime-buffer-entity-set-header-end-internal entity header-end)
-      (mime-buffer-entity-set-body-start-internal entity body-start)
-      (mime-buffer-entity-set-body-end-internal entity body-end)
+      (or (mime-entity-content-type-internal entity)
+	  (save-restriction
+	    (narrow-to-region header-start header-end)
+	    (mime-entity-set-content-type-internal
+	     entity
+	     (let ((str (std11-fetch-field "Content-Type")))
+	       (if str
+		   (mime-parse-Content-Type str)
+		 )))
+	    ))
       ))
   entity)
 
@@ -79,237 +84,74 @@
   )
 
 
-;;; @ message parser
+;;; @ entity
 ;;;
 
-(defun mime-parse-multipart (entity)
-  (goto-char (point-min))
-  (let* ((representation-type
-	  (mime-entity-representation-type-internal entity))
-	 (content-type (mime-entity-content-type-internal entity))
-	 (dash-boundary
-	  (concat "--" (mime-content-type-parameter content-type "boundary")))
-	 (delimiter       (concat "\n" (regexp-quote dash-boundary)))
-	 (close-delimiter (concat delimiter "--[ \t]*$"))
-	 (rsep (concat delimiter "[ \t]*\n"))
-	 (dc-ctl
-	  (if (eq (mime-content-type-subtype content-type) 'digest)
-	      (make-mime-content-type 'message 'rfc822)
-	    (make-mime-content-type 'text 'plain)
-	    ))
-	 (header-end (mime-buffer-entity-header-end-internal entity))
-	 (body-end (mime-buffer-entity-body-end-internal entity)))
-    (save-restriction
-      (goto-char body-end)
-      (narrow-to-region header-end
-			(if (re-search-backward close-delimiter nil t)
-			    (match-beginning 0)
-			  body-end))
-      (goto-char header-end)
-      (if (re-search-forward rsep nil t)
-	  (let ((cb (match-end 0))
-		ce ncb ret children
-		(node-id (mime-entity-node-id-internal entity))
-		(i 0))
-	    (while (re-search-forward rsep nil t)
-	      (setq ce (match-beginning 0))
-	      (setq ncb (match-end 0))
-	      (save-restriction
-		(narrow-to-region cb ce)
-		(setq ret (mime-parse-message representation-type dc-ctl
-					      entity (cons i node-id)))
-		)
-	      (setq children (cons ret children))
-	      (goto-char (setq cb ncb))
-	      (setq i (1+ i))
-	      )
-	    (setq ce (point-max))
-	    (save-restriction
-	      (narrow-to-region cb ce)
-	      (setq ret (mime-parse-message representation-type dc-ctl
-					    entity (cons i node-id)))
-	      )
-	    (setq children (cons ret children))
-	    (mime-entity-set-children-internal entity (nreverse children))
-	    )
-	(mime-entity-set-content-type-internal
-	 entity (make-mime-content-type 'message 'x-broken))
-	nil)
-      )))
-
-(defun mime-parse-encapsulated (entity)
-  (mime-entity-set-children-internal
-   entity
-   (save-restriction
-     (narrow-to-region (mime-buffer-entity-body-start-internal entity)
-		       (mime-buffer-entity-body-end-internal entity))
-     (list (mime-parse-message
-	    (mime-entity-representation-type-internal entity) nil
-	    entity (cons 0 (mime-entity-node-id-internal entity))))
-     )))
-
-(defun mime-parse-message (representation-type &optional default-ctl 
-					       parent node-id)
-  (let ((header-start (point-min))
-	header-end
-	body-start
-	(body-end (point-max))
-	content-type)
-    (goto-char header-start)
-    (if (re-search-forward "^$" nil t)
-	(setq header-end (match-end 0)
-	      body-start (if (= header-end body-end)
-			     body-end
-			   (1+ header-end)))
-      (setq header-end (point-min)
-	    body-start (point-min)))
-    (save-restriction
-      (narrow-to-region header-start header-end)
-      (setq content-type (or (let ((str (std11-fetch-field "Content-Type")))
-			       (if str
-				   (mime-parse-Content-Type str)
-				 ))
-			     default-ctl))
-      )
-    (luna-make-entity representation-type
-		      :location (current-buffer)
-		      :content-type content-type
-		      :parent parent
-		      :node-id node-id
-		      :buffer (current-buffer)
-		      :header-start header-start
-		      :header-end header-end
-		      :body-start body-start
-		      :body-end body-end)
-    ))
+(luna-define-method mime-insert-entity ((entity mime-buffer-entity))
+  (insert-buffer-substring (mime-buffer-entity-buffer-internal entity)
+			   (mime-buffer-entity-header-start-internal entity)
+			   (mime-buffer-entity-body-end-internal entity))
+  )
 
-(luna-define-method mime-entity-children ((entity mime-buffer-entity))
-  (let* ((content-type (mime-entity-content-type entity))
-	 (primary-type (mime-content-type-primary-type content-type)))
-    (cond ((eq primary-type 'multipart)
-	   (mime-parse-multipart entity)
-	   )
-	  ((and (eq primary-type 'message)
-		(memq (mime-content-type-subtype content-type)
-		      '(rfc822 news external-body)
-		      ))
-	   (mime-parse-encapsulated entity)
-	   ))
+(luna-define-method mime-write-entity ((entity mime-buffer-entity) filename)
+  (save-excursion
+    (set-buffer (mime-buffer-entity-buffer-internal entity))
+    (write-region-as-raw-text-CRLF
+     (mime-buffer-entity-header-start-internal entity)
+     (mime-buffer-entity-body-end-internal entity)
+     filename)
     ))
 
 
-(luna-define-method mime-goto-header-start-point ((entity mime-buffer-entity))
-  (set-buffer (mime-buffer-entity-buffer-internal entity))
-  (goto-char (mime-buffer-entity-header-start-internal entity))
-  )
+;;; @ entity header
+;;;
 
-(defun mime-visible-field-p (field-name visible-fields invisible-fields)
-  (or (catch 'found
-	(while visible-fields
-	  (let ((regexp (car visible-fields)))
-	    (if (string-match regexp field-name)
-		(throw 'found t)
-	      ))
-	  (setq visible-fields (cdr visible-fields))
-	  ))
-      (catch 'found
-	(while invisible-fields
-	  (let ((regexp (car invisible-fields)))
-	    (if (string-match regexp field-name)
-		(throw 'found nil)
-	      ))
-	  (setq invisible-fields (cdr invisible-fields))
-	  )
-	t)))
-
-(defun mime-insert-header-from-buffer (buffer start end
-					      &optional invisible-fields
-					      visible-fields)
-  (let ((the-buf (current-buffer))
-	(mode-obj (mime-find-field-presentation-method 'wide))
-	field-decoder
-	f-b p f-e field-name len field field-body)
-    (save-excursion
-      (set-buffer buffer)
-      (save-restriction
-	(narrow-to-region start end)
-	(goto-char start)
-	(while (re-search-forward std11-field-head-regexp nil t)
-	  (setq f-b (match-beginning 0)
-		p (match-end 0)
-		field-name (buffer-substring f-b p)
-		len (string-width field-name)
-		f-e (std11-field-end))
-	  (when (mime-visible-field-p field-name
-				      visible-fields invisible-fields)
-	    (setq field (intern
-			 (capitalize (buffer-substring f-b (1- p))))
-		  field-body (buffer-substring p f-e)
-		  field-decoder (inline (mime-find-field-decoder-internal
-					 field mode-obj)))
-	    (with-current-buffer the-buf
-	      (insert field-name)
-	      (insert (if field-decoder
-			  (funcall field-decoder field-body len)
-			;; Don't decode
-			field-body))
-	      (insert "\n")
-	      )))))))
 
-(luna-define-method mime-insert-header ((entity mime-buffer-entity)
-					&optional invisible-fields
-					visible-fields)
-  (mime-insert-header-from-buffer
-   (mime-buffer-entity-buffer-internal entity)
-   (mime-buffer-entity-header-start-internal entity)
-   (mime-buffer-entity-header-end-internal entity)
-   invisible-fields visible-fields)
-  )
+;;; @ entity body
+;;;
 
-(luna-define-method mime-entity-content ((entity mime-buffer-entity))
+(luna-define-method mime-entity-body ((entity mime-buffer-entity))
   (save-excursion
     (set-buffer (mime-buffer-entity-buffer-internal entity))
-    (mime-decode-string
-     (buffer-substring (mime-buffer-entity-body-start-internal entity)
-		       (mime-buffer-entity-body-end-internal entity))
-     (mime-entity-encoding entity))))
+    (buffer-substring (mime-buffer-entity-body-start-internal entity)
+		      (mime-buffer-entity-body-end-internal entity))))
 
-(luna-define-method mime-insert-text-content ((entity mime-buffer-entity))
-  (insert
-   (decode-mime-charset-string (mime-entity-content entity)
-			       (or (mime-content-type-parameter
-				    (mime-entity-content-type entity)
-				    "charset")
-				   default-mime-charset)
-			       'CRLF)
-   ))
+(luna-define-method mime-insert-entity-body ((entity mime-buffer-entity))
+  (insert-buffer-substring (mime-buffer-entity-buffer-internal entity)
+			   (mime-buffer-entity-body-start-internal entity)
+			   (mime-buffer-entity-body-end-internal entity))
+  )
 
-;;; redefine to speed up
+(luna-define-method mime-write-entity-body ((entity mime-buffer-entity)
+					    filename)
+  (save-excursion
+    (set-buffer (mime-buffer-entity-buffer-internal entity))
+    (write-region-as-binary (mime-buffer-entity-body-start-internal entity)
+			    (mime-buffer-entity-body-end-internal entity)
+			    filename)
+    ))
 
-(mm-define-method entity-point-min ((entity buffer))
-  (mime-buffer-entity-header-start-internal entity))
 
-(mm-define-method entity-point-max ((entity buffer))
-  (mime-buffer-entity-body-end-internal entity))
+;;; @ entity content
+;;;
 
-(luna-define-method mime-entity-fetch-field ((entity mime-buffer-entity)
-					     field-name)
+(luna-define-method mime-entity-content ((entity mime-buffer-entity))
   (save-excursion
     (set-buffer (mime-buffer-entity-buffer-internal entity))
-    (save-restriction
-      (narrow-to-region (mime-buffer-entity-header-start-internal entity)
-			(mime-buffer-entity-header-end-internal entity))
-      (std11-fetch-field field-name)
-      )))
+    (mime-decode-string
+     (buffer-substring (mime-buffer-entity-body-start-internal entity)
+		       (mime-buffer-entity-body-end-internal entity))
+     (mime-entity-encoding entity))))
 
-(mm-define-method insert-entity-content ((entity buffer))
+(luna-define-method mime-insert-entity-content ((entity mime-buffer-entity))
   (insert (with-current-buffer (mime-buffer-entity-buffer-internal entity)
 	    (mime-decode-string
 	     (buffer-substring (mime-buffer-entity-body-start-internal entity)
 			       (mime-buffer-entity-body-end-internal entity))
 	     (mime-entity-encoding entity)))))
 
-(mm-define-method write-entity-content ((entity buffer) filename)
+(luna-define-method mime-write-entity-content ((entity mime-buffer-entity)
+					       filename)
   (save-excursion
     (set-buffer (mime-buffer-entity-buffer-internal entity))
     (mime-write-decoded-region (mime-buffer-entity-body-start-internal entity)
@@ -318,66 +160,194 @@
 			       (or (mime-entity-encoding entity) "7bit"))
     ))
 
-(mm-define-method insert-entity ((entity buffer))
-  (insert-buffer-substring (mime-buffer-entity-buffer-internal entity)
-			   (mime-buffer-entity-header-start-internal entity)
-			   (mime-buffer-entity-body-end-internal entity))
+
+;;; @ header field
+;;;
+
+(luna-define-method mime-entity-fetch-field :around
+  ((entity mime-buffer-entity) field-name)
+  (or (luna-call-next-method)
+      (save-excursion
+	(set-buffer (mime-buffer-entity-buffer-internal entity))
+	(save-restriction
+	  (narrow-to-region (mime-buffer-entity-header-start-internal entity)
+			    (mime-buffer-entity-header-end-internal entity))
+	  (let ((ret (std11-fetch-field field-name)))
+	    (when ret
+	      (or (symbolp field-name)
+		  (setq field-name
+			(intern (capitalize (capitalize field-name)))))
+  	      (mime-entity-set-original-header-internal
+	       entity
+	       (put-alist field-name ret
+			  (mime-entity-original-header-internal entity)))
+	      ret))))))
+
+(luna-define-method mime-insert-header ((entity mime-buffer-entity)
+					&optional invisible-fields
+					visible-fields)
+  (mime-insert-header-from-buffer
+   (mime-buffer-entity-buffer-internal entity)
+   (mime-buffer-entity-header-start-internal entity)
+   (mime-buffer-entity-header-end-internal entity)
+   invisible-fields visible-fields)
   )
 
-(mm-define-method write-entity ((entity buffer) filename)
-  (save-excursion
-    (set-buffer (mime-buffer-entity-buffer-internal entity))
-    (write-region-as-raw-text-CRLF
-     (mime-buffer-entity-header-start-internal entity)
-     (mime-buffer-entity-body-end-internal entity)
-     filename)
-    ))
 
-(mm-define-method write-entity-body ((entity buffer) filename)
-  (save-excursion
-    (set-buffer (mime-buffer-entity-buffer-internal entity))
-    (write-region-as-binary (mime-buffer-entity-body-start-internal entity)
-			    (mime-buffer-entity-body-end-internal entity)
-			    filename)
-    ))
+;;; @ header buffer
+;;;
+
+;; (luna-define-method mime-entity-header-buffer ((entity mime-buffer-entity))
+;;   (mime-buffer-entity-buffer-internal entity)
+;;   )
+
+;; (luna-define-method mime-goto-header-start-point ((entity mime-buffer-entity))
+;;   (set-buffer (mime-buffer-entity-buffer-internal entity))
+;;   (goto-char (mime-buffer-entity-header-start-internal entity))
+;;   )
+
+;; (luna-define-method mime-entity-header-start-point ((entity
+;;                                                      mime-buffer-entity))
+;;   (mime-buffer-entity-header-start-internal entity)
+;;   )
 
+;; (luna-define-method mime-entity-header-end-point ((entity
+;;                                                    mime-buffer-entity))
+;;   (mime-buffer-entity-header-end-internal entity)
+;;   )
 
-;;; @ buffer
+
+;;; @ body buffer
 ;;;
 
-(luna-define-method mime-entity-header-buffer ((entity mime-buffer-entity))
-  (mime-buffer-entity-buffer-internal entity)
-  )
+;; (luna-define-method mime-entity-body-buffer ((entity mime-buffer-entity))
+;;   (mime-buffer-entity-buffer-internal entity)
+;;   )
 
-(luna-define-method mime-entity-body-buffer ((entity mime-buffer-entity))
-  (mime-buffer-entity-buffer-internal entity)
-  )
+;; (luna-define-method mime-goto-body-start-point ((entity mime-buffer-entity))
+;;   (set-buffer (mime-buffer-entity-buffer-internal entity))
+;;   (goto-char (mime-buffer-entity-body-start-internal entity))
+;;   )
 
-(luna-define-method mime-entity-buffer ((entity mime-buffer-entity))
-  (mime-buffer-entity-buffer-internal entity)
-  )
+;; (luna-define-method mime-goto-body-end-point ((entity mime-buffer-entity))
+;;   (set-buffer (mime-buffer-entity-buffer-internal entity))
+;;   (goto-char (mime-buffer-entity-body-end-internal entity))
+;;   )
 
-(luna-define-method mime-entity-point-min ((entity mime-buffer-entity))
-  (mime-buffer-entity-header-start-internal entity)
-  )
+;; (luna-define-method mime-entity-body-start-point ((entity mime-buffer-entity))
+;;   (mime-buffer-entity-body-start-internal entity)
+;;   )
 
-(luna-define-method mime-entity-point-max ((entity mime-buffer-entity))
-  (mime-buffer-entity-body-end-internal entity)
-  )
+;; (luna-define-method mime-entity-body-end-point ((entity mime-buffer-entity))
+;;   (mime-buffer-entity-body-end-internal entity)
+;;   )
 
 
-;;; @ utility
+;;; @ buffer (obsolete)
 ;;;
 
-;;;###autoload
-(defun mime-parse-buffer (&optional buffer representation-type)
-  "Parse BUFFER as a MIME message.
-If buffer is omitted, it parses current-buffer."
-  (save-excursion
-    (if buffer (set-buffer buffer))
-    (setq mime-message-structure
-	  (mime-parse-message (or representation-type 'buffer) nil))
-    ))
+;; (luna-define-method mime-entity-buffer ((entity mime-buffer-entity))
+;;   (mime-buffer-entity-buffer-internal entity)
+;;   )
+
+;; (luna-define-method mime-entity-point-min ((entity mime-buffer-entity))
+;;   (mime-buffer-entity-header-start-internal entity)
+;;   )
+
+;; (luna-define-method mime-entity-point-max ((entity mime-buffer-entity))
+;;   (mime-buffer-entity-body-end-internal entity)
+;;   )
+
+
+;;; @ children
+;;;
+
+(defun mmbuffer-parse-multipart (entity)
+  (with-current-buffer (mime-buffer-entity-buffer-internal entity)
+    (let* ((representation-type
+	    (mime-entity-representation-type-internal entity))
+	   (content-type (mime-entity-content-type-internal entity))
+	   (dash-boundary
+	    (concat "--"
+		    (mime-content-type-parameter content-type "boundary")))
+	   (delimiter       (concat "\n" (regexp-quote dash-boundary)))
+	   (close-delimiter (concat delimiter "--[ \t]*$"))
+	   (rsep (concat delimiter "[ \t]*\n"))
+	   (dc-ctl
+	    (if (eq (mime-content-type-subtype content-type) 'digest)
+		(make-mime-content-type 'message 'rfc822)
+	      (make-mime-content-type 'text 'plain)
+	      ))
+	   (body-start (mime-buffer-entity-body-start-internal entity))
+	   (body-end (mime-buffer-entity-body-end-internal entity)))
+      (save-restriction
+	(goto-char body-end)
+	(narrow-to-region body-start
+			  (if (re-search-backward close-delimiter nil t)
+			      (match-beginning 0)
+			    body-end))
+	(goto-char body-start)
+	(if (re-search-forward
+	     (concat "^" (regexp-quote dash-boundary) "[ \t]*\n")
+	     nil t)
+	    (let ((cb (match-end 0))
+		  ce ncb ret children
+		  (node-id (mime-entity-node-id-internal entity))
+		  (i 0))
+	      (while (re-search-forward rsep nil t)
+		(setq ce (match-beginning 0))
+		(setq ncb (match-end 0))
+		(save-restriction
+		  (narrow-to-region cb ce)
+		  (setq ret (mime-parse-message representation-type dc-ctl
+						entity (cons i node-id)))
+		  )
+		(setq children (cons ret children))
+		(goto-char (setq cb ncb))
+		(setq i (1+ i))
+		)
+	      (setq ce (point-max))
+	      (save-restriction
+		(narrow-to-region cb ce)
+		(setq ret (mime-parse-message representation-type dc-ctl
+					      entity (cons i node-id)))
+		)
+	      (setq children (cons ret children))
+	      (mime-entity-set-children-internal entity (nreverse children))
+	      )
+	  (mime-entity-set-content-type-internal
+	   entity (make-mime-content-type 'message 'x-broken))
+	  nil)
+	))))
+
+(defun mmbuffer-parse-encapsulated (entity &optional external)
+  (mime-entity-set-children-internal
+   entity
+   (with-current-buffer (mime-buffer-entity-buffer-internal entity)
+     (save-restriction
+       (narrow-to-region (mime-buffer-entity-body-start-internal entity)
+			 (mime-buffer-entity-body-end-internal entity))
+       (list (mime-parse-message
+	      (if external
+		  (progn
+		    (require 'mmexternal)
+		    'mime-external-entity)
+		(mime-entity-representation-type-internal entity))
+	      nil
+	      entity (cons 0 (mime-entity-node-id-internal entity))))))))
+
+(luna-define-method mime-entity-children ((entity mime-buffer-entity))
+  (let* ((content-type (mime-entity-content-type entity))
+	 (primary-type (mime-content-type-primary-type content-type))
+	 sub-type)
+    (cond ((eq primary-type 'multipart)
+	   (mmbuffer-parse-multipart entity))
+	  ((eq primary-type 'message)
+	   (setq sub-type (mime-content-type-subtype content-type))
+	   (cond ((eq sub-type 'external-body)
+		  (mmbuffer-parse-encapsulated entity 'external))
+		 ((memq sub-type '(rfc822 news))
+		  (mmbuffer-parse-encapsulated entity)))))))
 
 
 ;;; @ end