Sync up to flim-1_13_2 from flim-1_12_7.
[elisp/flim.git] / mmdbuffer.el
diff --git a/mmdbuffer.el b/mmdbuffer.el
new file mode 100644 (file)
index 0000000..637eab3
--- /dev/null
@@ -0,0 +1,250 @@
+;;; mmdual.el --- MIME entity module for dual buffers
+
+;; Copyright (C) 1998,1999 Free Software Foundation, Inc.
+;; Copyright (C) 1999 Electrotechnical Laboratory, JAPAN.
+;; Licensed to the Free Software Foundation.
+
+;; Author: MORIOKA Tomohiko <tomo@m17n.org>
+;; Keywords: MIME, multimedia, mail, news
+
+;; This file is part of FLIM (Faithful Library about Internet Message).
+
+;; This program is free software; you can redistribute it and/or
+;; modify it under the terms of the GNU General Public License as
+;; published by the Free Software Foundation; either version 2, or (at
+;; your option) any later version.
+
+;; This program is distributed in the hope that it will be useful, but
+;; WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+;; General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU Emacs; see the file COPYING.  If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+
+;;; Code:
+
+(require 'mime)
+
+(eval-and-compile
+  (luna-define-class mime-dual-entity (mime-entity)
+                    (header-buffer
+                     body-buffer))
+
+  (luna-define-internal-accessors 'mime-dual-entity)
+  )
+
+(luna-define-method initialize-instance :after ((entity mime-dual-entity)
+                                               &rest init-args)
+  (let (buf)
+    (setq buf (mime-dual-entity-header-buffer-internal entity))
+    (if buf
+       (with-current-buffer buf
+         (if (mime-root-entity-p entity)
+             (setq mime-message-structure entity))
+         (or (mime-entity-content-type-internal entity)
+             (mime-entity-set-content-type-internal
+              entity
+              (let ((str (std11-fetch-field "Content-Type")))
+                (if str
+                    (mime-parse-Content-Type str)
+                  ))))))
+    (setq buf (mime-dual-entity-body-buffer-internal entity))
+    (if buf
+       (with-current-buffer buf
+         (if (mime-root-entity-p entity)
+             (setq mime-message-structure entity))))
+    ) entity)
+
+(luna-define-method mime-entity-name ((entity mime-dual-entity))
+  (buffer-name (mime-dual-entity-header-buffer-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)))
+
+(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-dual-entity)
+                                       &optional invisible-fields
+                                       visible-fields)
+  (let* ((buf (mime-dual-entity-header-buffer-internal entity))
+        header-start header-end)
+    (with-current-buffer buf
+      (setq header-start (point-min)
+           header-end (point-max)))
+    (mime-insert-header-from-buffer buf header-start header-end
+                                   invisible-fields visible-fields)
+    ))
+
+(luna-define-method mime-entity-content ((entity mime-dual-entity))
+  (mime-decode-string
+   (with-current-buffer (mime-dual-entity-body-buffer-internal entity)
+     (buffer-string))
+   (mime-entity-encoding entity)))
+
+(luna-define-method mime-entity-fetch-field :around
+  ((entity mime-dual-entity) field-name)
+  (or (luna-call-next-method)
+      (with-current-buffer (mime-dual-entity-header-buffer-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-entity-content ((entity mime-dual-entity))
+  (insert
+   (mime-decode-string
+    (with-current-buffer (mime-dual-entity-body-buffer-internal entity)
+      (buffer-substring (point-min)(point-max)))
+    (mime-entity-encoding entity))))
+
+(luna-define-method mime-write-entity-content ((entity mime-dual-entity)
+                                              filename)
+  (with-current-buffer (mime-dual-entity-body-buffer-internal entity)
+    (mime-write-decoded-region (point-min)
+                              (point-max)
+                              filename
+                              (or (mime-entity-encoding entity) "7bit"))))
+
+(luna-define-method mime-insert-entity ((entity mime-dual-entity))
+  (let (buf)
+    (setq buf (mime-dual-entity-header-buffer-internal entity))
+    (when buf
+      (insert-buffer (mime-dual-entity-header-buffer-internal entity))
+      (setq buf (mime-dual-entity-body-buffer-internal entity))
+      (when buf
+       (insert "\n")
+       (insert-buffer buf)))))
+
+(luna-define-method mime-write-entity ((entity mime-dual-entity) filename)
+  (let (buf)
+    (setq buf (mime-dual-entity-header-buffer-internal entity))
+    (if (null buf)
+       (error "No header buffer.")
+      (with-current-buffer buf
+       (write-region-as-raw-text-CRLF
+        (point-min)(point-max) filename))
+      (setq buf (mime-dual-entity-body-buffer-internal entity))
+      (when buf
+       (with-temp-buffer
+         (insert "\n")
+         (write-region-as-raw-text-CRLF
+          (point-min)(point-max)
+          filename 'append))
+       (with-current-buffer buf
+         (write-region-as-raw-text-CRLF
+          (point-min)(point-max)
+          filename 'append))))))
+
+(luna-define-method mime-write-entity-body ((entity mime-dual-entity) filename)
+  (with-current-buffer (mime-dual-entity-body-buffer-internal entity)
+    (write-region-as-binary (point-min)(point-max)
+                           filename)))
+
+
+;;; @ buffer
+;;;
+
+(luna-define-method mime-entity-header-buffer ((entity mime-dual-entity))
+  (mime-dual-entity-header-buffer-internal entity))
+
+(luna-define-method mime-entity-body-buffer ((entity mime-dual-entity))
+  (mime-dual-entity-body-buffer-internal entity))
+
+(luna-define-method mime-entity-buffer ((entity mime-dual-entity))
+  (message "mime-dual-entity does not have mime-entity-buffer.")
+  nil)
+
+(luna-define-method mime-entity-body-start-point ((entity mime-dual-entity))
+  (with-current-buffer (mime-entity-body-buffer entity)
+    (point-min)))
+
+(luna-define-method mime-entity-body-end-point ((entity mime-dual-entity))
+  (with-current-buffer (mime-entity-body-buffer entity)
+    (point-max)))
+
+(luna-define-method mime-entity-point-min ((entity mime-dual-entity))
+  (message "mime-dual-entity does not have mime-entity-point-min.")
+  nil)
+
+(luna-define-method mime-entity-point-max ((entity mime-dual-entity))
+  (message "mime-dual-entity does not have mime-entity-point-max.")
+  nil)
+
+(luna-define-method mime-goto-header-start-point ((entity mime-dual-entity))
+  (set-buffer (mime-dual-entity-header-buffer-internal entity))
+  (goto-char (point-min)))
+
+(luna-define-method mime-goto-body-start-point ((entity mime-dual-entity))
+  (set-buffer (mime-dual-entity-body-buffer-internal entity))
+  (goto-char (point-min)))
+
+(luna-define-method mime-goto-body-end-point ((entity mime-dual-entity))
+  (set-buffer (mime-dual-entity-body-buffer-internal entity))
+  (goto-char (point-max)))
+
+
+;;; @ end
+;;;
+
+(provide 'mmdual)
+
+;;; mmdual.el ends here