From 61be87b0ced6fec82dab4b4a65cf11992349a1bb Mon Sep 17 00:00:00 2001
From: morioka <morioka>
Date: Sat, 10 Oct 1998 02:13:19 +0000
Subject: [PATCH] (base64-internal-decoding-limit): Switch default value
 between XEmacs-mule and other emacsen. Abolish function
 `base64-decode-string!'. (base64-internal-decode-region):
 New implementation. (base64-insert-encoded-file): New
 function. (mime-insert-encoded-file): Use
 `base64-insert-encoded-file'.
 (base64-write-decoded-region): New function.
 (mime-write-decoded-region): Use
 `base64-write-decoded-region'.

---
 mel-b.el |   44 +++++++++++++++++++++++++++++++++++---------
 1 file changed, 35 insertions(+), 9 deletions(-)

diff --git a/mel-b.el b/mel-b.el
index 8af1b82..ad34a37 100644
--- a/mel-b.el
+++ b/mel-b.el
@@ -60,7 +60,10 @@ external encoder is called."
   :type '(choice (const :tag "Always use internal encoder" nil)
 		 (integer :tag "Size")))
 
-(defcustom base64-internal-decoding-limit 70000
+(defcustom base64-internal-decoding-limit (if (and (featurep 'xemacs)
+						   (featurep 'mule))
+					      1000
+					    7600)
   "*limit size to use internal base64 decoder.
 If size of input to decode is larger than this limit,
 external decoder is called."
@@ -194,15 +197,30 @@ external decoder is called."
 (defun base64-internal-decode-string (string)
   (base64-internal-decode string (make-string (length string) 0)))
 
-(defsubst base64-decode-string! (string)
-  (base64-internal-decode string string))
+;; (defsubst base64-decode-string! (string)
+;;   (setq string (string-as-unibyte string))
+;;   (base64-internal-decode string string))
 
 (defun base64-internal-decode-region (beg end)
   (save-excursion
-    (let ((str (buffer-substring beg end)))
+    (let ((str (string-as-unibyte (buffer-substring beg end))))
       (delete-region beg end)
       (goto-char beg)
-      (insert (base64-decode-string! str)))))
+      (insert (base64-internal-decode str str)))))
+
+;; (defun base64-internal-decode-region2 (beg end)
+;;   (save-excursion
+;;     (let ((str (buffer-substring beg end)))
+;;       (delete-region beg end)
+;;       (goto-char beg)
+;;       (insert (base64-decode-string! str)))))
+
+;; (defun base64-internal-decode-region3 (beg end)
+;;   (save-excursion
+;;     (let ((str (buffer-substring beg end)))
+;;       (delete-region beg end)
+;;       (goto-char beg)
+;;       (insert (base64-internal-decode-string str)))))
 
 
 ;;; @ external encoder/decoder
@@ -305,7 +323,7 @@ metamail or XEmacs package)."
       (base64-decode-string string)
     (error "Invalid encoded-text %s" string)))
 
-(mel-define-method mime-insert-encoded-file (filename (nil "base64"))
+(defun base64-insert-encoded-file (filename)
   "Encode contents of file FILENAME to base64, and insert the result.
 It calls external base64 encoder specified by
 `base64-external-encoder'.  So you must install the program (maybe
@@ -319,14 +337,17 @@ mmencode included in metamail or XEmacs package)."
     (insert
      (base64-encode-string
       (with-temp-buffer
+	(set-buffer-multibyte nil)
 	(insert-file-contents-as-binary filename)
 	(buffer-string))))
     (or (bolp)
 	(insert "\n"))
      ))
 
-(mel-define-method mime-write-decoded-region (start end filename
-						    (nil "base64"))
+(mel-define-method-function (mime-insert-encoded-file filename (nil "base64"))
+			    'base64-insert-encoded-file)
+
+(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
@@ -344,7 +365,12 @@ START and END are buffer positions."
     (let ((str (buffer-substring start end)))
       (with-temp-buffer
 	(insert (base64-internal-decode-string str))
-	(write-region-as-binary (point-min) (point-max) filename)))))
+	(write-region-as-binary (point-min) (point-max) filename)
+	))))
+
+(mel-define-method-function
+ (mime-write-decoded-region start end filename (nil "base64"))
+ 'base64-write-decoded-region)
 
        
 ;;; @ etc
-- 
1.7.10.4