(base64-external-decoder): New variable.

(base64-external-decoder-option-to-specify-file): New variable.
(base64-write-decoded-region): New function.

diff --git a/mel-dl.el b/mel-dl.el
index e42635b..67b498c 100644 (file)
--- a/mel-dl.el
+++ b/mel-dl.el
@@ -3,7 +3,7 @@
 ;; Copyright (C) 1998 Free Software Foundation, Inc.
 
 ;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
-;; Version: $Id: mel-dl.el,v 1.1 1998-01-11 16:21:43 morioka Exp $
+;; Version: $Id: mel-dl.el,v 1.2 1998-03-11 15:38:51 morioka Exp $
 ;; Keywords: MIME, Base64
 
 ;; This file is part of MEL (MIME Encoding Library).
@@ -93,6 +93,12 @@ START and END are buffer positions."
 (defvar base64-external-encoder '("mmencode")
   "*list of base64 encoder program name and its arguments.")
 
+(defvar base64-external-decoder '("mmencode" "-u")
+  "*list of base64 decoder program name and its arguments.")
+
+(defvar base64-external-decoder-option-to-specify-file '("-o")
+  "*list of option of base64 decoder program to specify file.")
+
 (defun base64-insert-encoded-file (filename)
   "Encode contents of file FILENAME to base64, and insert the result.
 It calls external base64 encoder specified by
@@ -103,6 +109,21 @@ mmencode included in metamail or XEmacs package)."
         filename t nil (cdr base64-external-encoder))
   )
 
+(defun base64-write-decoded-region (start end filename)
+  "Decode and write current region encoded by base64 into FILENAME.
+START and END are buffer positions."
+  (interactive
+   (list (region-beginning) (region-end)
+        (read-file-name "Write decoded region to file: ")))
+  (as-binary-process
+   (apply (function call-process-region)
+         start end (car base64-external-decoder)
+         nil nil nil
+         (append (cdr base64-external-decoder)
+                 base64-external-decoder-option-to-specify-file
+                 (list filename))
+         )))
+
 
 ;;; @ etc
 ;;;