Merge flim-1_13_2_1.
[elisp/flim.git] / mmbuffer.el
index 38432fb..f014aec 100644 (file)
@@ -1,8 +1,10 @@
 ;;; 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.
 
-;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
+;; Author: MORIOKA Tomohiko <tomo@m17n.org>
 ;; Keywords: MIME, multimedia, mail, news
 
 ;; This file is part of FLIM (Faithful Library about Internet Message).
 
 ;;; Code:
 
-(require 'mmgeneric)
+(require 'mime)
 
-(mm-define-backend buffer (generic))
+(eval-and-compile
+  (luna-define-class mime-buffer-entity (mime-entity)
+                    (buffer
+                     header-start
+                     header-end
+                     body-start
+                     body-end))
 
-(mm-define-method initialize-instance ((entity buffer))
-  (mime-entity-set-buffer-internal
-   entity (mime-entity-location-internal entity))
+  (luna-define-internal-accessors 'mime-buffer-entity)
+  )
+
+(luna-define-method initialize-instance :after ((entity mime-buffer-entity)
+                                               &rest init-args)
+  (or (mime-buffer-entity-buffer-internal entity)
+      (mime-buffer-entity-set-buffer-internal
+       entity (mime-entity-location-internal entity)))
   (save-excursion
-    (set-buffer (mime-entity-buffer-internal entity))
-    (setq mime-message-structure entity)
-    (let ((header-start (point-min))
-         header-end
-         body-start
-         (body-end (point-max)))
+    (set-buffer (mime-buffer-entity-buffer-internal entity))
+    (if (mime-root-entity-p entity)
+       (setq mime-message-structure entity))
+    (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-entity-set-header-start-internal entity header-start)
-      (mime-entity-set-header-end-internal entity header-end)
-      (mime-entity-set-body-start-internal entity body-start)
-      (mime-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)
 
-;;; redefine to speed up
+(luna-define-method mime-entity-name ((entity mime-buffer-entity))
+  (buffer-name (mime-buffer-entity-buffer-internal entity))
+  )
 
-(mm-define-method entity-point-min ((entity buffer))
-  (mime-entity-header-start-internal entity))
 
-(mm-define-method entity-point-max ((entity buffer))
-  (mime-entity-body-end-internal entity))
+(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)))
 
-(mm-define-method fetch-field ((entity buffer) field-name)
-  (save-excursion
-    (set-buffer (mime-entity-buffer-internal entity))
-    (save-restriction
-      (narrow-to-region (mime-entity-header-start-internal entity)
-                       (mime-entity-header-end-internal entity))
-      (std11-fetch-field field-name)
-      )))
-
-(mm-define-method entity-content ((entity buffer))
+(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)
+  )
+
+(luna-define-method mime-entity-content ((entity mime-buffer-entity))
   (save-excursion
-    (set-buffer (mime-entity-buffer-internal entity))
+    (set-buffer (mime-buffer-entity-buffer-internal entity))
     (mime-decode-string
-     (buffer-substring (mime-entity-body-start-internal entity)
-                      (mime-entity-body-end-internal entity))
+     (buffer-substring (mime-buffer-entity-body-start-internal entity)
+                      (mime-buffer-entity-body-end-internal entity))
      (mime-entity-encoding entity))))
 
+(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))))))
+
 (mm-define-method insert-entity-content ((entity buffer))
-  (insert (with-current-buffer (mime-entity-buffer-internal entity)
+  (insert (with-current-buffer (mime-buffer-entity-buffer-internal entity)
            (mime-decode-string
-            (buffer-substring (mime-entity-body-start-internal entity)
-                              (mime-entity-body-end-internal entity))
+            (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)
   (save-excursion
-    (set-buffer (mime-entity-buffer-internal entity))
-    (mime-write-decoded-region (mime-entity-body-start-internal entity)
-                              (mime-entity-body-end-internal entity)
+    (set-buffer (mime-buffer-entity-buffer-internal entity))
+    (mime-write-decoded-region (mime-buffer-entity-body-start-internal entity)
+                              (mime-buffer-entity-body-end-internal entity)
                               filename
                               (or (mime-entity-encoding entity) "7bit"))
     ))
 
 (mm-define-method insert-entity ((entity buffer))
-  (insert-buffer-substring (mime-entity-buffer-internal entity)
-                          (mime-entity-header-start-internal entity)
-                          (mime-entity-body-end-internal entity))
+  (insert-buffer-substring (mime-buffer-entity-buffer-internal entity)
+                          (mime-buffer-entity-header-start-internal entity)
+                          (mime-buffer-entity-body-end-internal entity))
   )
 
 (mm-define-method write-entity ((entity buffer) filename)
   (save-excursion
-    (set-buffer (mime-entity-buffer-internal entity))
-    (write-region-as-raw-text-CRLF (mime-entity-header-start-internal entity)
-                                  (mime-entity-body-end-internal entity)
-                                  filename)
+    (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-entity-buffer-internal entity))
-    (write-region-as-binary (mime-entity-body-start-internal entity)
-                           (mime-entity-body-end-internal entity)
+    (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)
+  )
+
+
+;;; @ body buffer
+;;;
+
+(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-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-body-start-point ((entity mime-buffer-entity))
+  (mime-buffer-entity-body-start-internal entity)
+  )
+
+(luna-define-method mime-entity-body-end-point ((entity mime-buffer-entity))
+  (mime-buffer-entity-body-end-internal entity)
+  )
+
+
+;;; @ buffer (obsolete)
+;;;
+
+(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)
+  )
+
+
 ;;; @ end
 ;;;