(std11-wrap-as-quoted-pairs): New function.

(std11-wrap-as-quoted-string): Use function
`std11-wrap-as-quoted-pairs'.

diff --git a/std11.el b/std11.el
index e5d6c2c..24a71a7 100644 (file)
--- a/std11.el
+++ b/std11.el
@@ -4,7 +4,7 @@
 
 ;; Author:   MORIOKA Tomohiko <morioka@jaist.ac.jp>
 ;; Keywords: mail, news, RFC 822, STD 11
-;; Version: $Id: std11.el,v 0.37 1996-12-16 07:12:38 morioka Exp $
+;; Version: $Id: std11.el,v 0.38 1996-12-17 11:01:47 morioka Exp $
 
 ;; This file is part of MU (Message Utilities).
 
@@ -200,18 +200,29 @@ If BOUNDARY is not nil, it is used as message header separator.
 ;;; @ quoted-string
 ;;;
 
+(defun std11-wrap-as-quoted-pairs (string specials)
+  (let (dest
+       (i 0)
+       (b 0)
+       (len (length string))
+       )
+    (while (< i len)
+      (let ((chr (aref string i)))
+       (if (memq chr specials)
+           (setq dest (concat dest (substring string b i) "\\")
+                 b i)
+         ))
+      (setq i (1+ i))
+      )
+    (concat dest (substring string b))
+    ))
+
 (defconst std11-non-qtext-char-list '(?\" ?\\ ?\r ?\n))
 
 (defun std11-wrap-as-quoted-string (string)
   "Wrap STRING as RFC 822 quoted-string. [std11.el]"
   (concat "\""
-         (mapconcat (function
-                     (lambda (chr)
-                       (if (memq chr std11-non-qtext-char-list)
-                           (concat "\\" (char-to-string chr))
-                         (char-to-string chr)
-                         )
-                       )) string "")
+         (std11-wrap-as-quoted-pairs string std11-non-qtext-char-list)
          "\""))
 
 (defun std11-strip-quoted-pair (string)