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+;;; mime-file.el --- mime-view internal method for file extraction
+
+;; Copyright (C) 1995,1996,1997 Free Software Foundation, Inc.
+
+;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
+;; modified by Shuhei KOBAYASHI <shuhei-k@jaist.ac.jp>
+;; Version: $Id: mime-file.el,v 0.0 1997-02-27 05:44:03 tmorioka Exp $
+;; Keywords: file, extract, MIME, multimedia, mail, news
+
+;; This file is part of SEMI (SEMI is Emacs MIME Interfaces).
+
+;; 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-view)
+
+(defun mime-article/extract-file (beg end cal)
+  (goto-char beg)
+  (let* ((name
+         (save-restriction
+           (narrow-to-region beg end)
+           (mime-article/get-filename cal)
+           ))
+        (encoding (cdr (assq 'encoding cal)))
+        (filename
+          (if (and name (not (string-equal name "")))
+             (expand-file-name name
+                               (call-interactively
+                                (function
+                                 (lambda (dir)
+                                   (interactive "DDirectory: ")
+                                   dir))))
+           (call-interactively
+            (function
+             (lambda (file)
+               (interactive "FFilename: ")
+               (expand-file-name file))))))
+        (the-buf (current-buffer))
+        (tmp-buf (generate-new-buffer (file-name-nondirectory filename)))
+        )
+    (if (file-exists-p filename)
+        (or (yes-or-no-p (format "File %s exists. Save anyway? " filename))
+            (error "")))
+    (re-search-forward "\n\n")
+    (append-to-buffer tmp-buf (match-end 0) end)
+    (save-excursion
+      (set-buffer tmp-buf)
+      (mime-decode-region (point-min)(point-max) encoding)
+      (let ((coding-system-for-write 'no-conversion)
+           jka-compr-compression-info-list ; for jka-compr
+           jam-zcat-filename-list          ; for jam-zcat
+           require-final-newline)
+       (write-file filename)
+       )
+      (kill-buffer tmp-buf)
+      )))
+
+
+;;; @ setup
+;;;
+
+(set-atype 'mime/content-decoding-condition
+          '((type . "application/octet-stream")
+            (method . mime-article/extract-file)
+            )
+          'ignore '(method)
+          'replacement)
+
+(set-atype 'mime/content-decoding-condition
+          '((mode . "extract")
+            (method . mime-article/extract-file)
+            )
+          'remove
+          '((method "mime-file"  nil 'file 'type 'encoding 'mode 'name)
+            (mode . "extract"))
+          'replacement)
+
+
+;;; @ end
+;;;
+
+(provide 'mime-file)
+
+;;; end of mime-file.el