;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
;; Keywords: mail, news, RFC 822, STD 11
-;; Version: $Id: std11.el,v 0.27 1996-09-03 09:22:23 morioka Exp $
+;; Version: $Id: std11.el,v 0.33 1996-09-14 08:42:39 morioka Exp $
;; This file is part of MU (Message Utilities).
dest))))
+;;; @ quoted-string
+;;;
+
+(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 "")
+ "\""))
+
+(defun std11-strip-quoted-pair (str)
+ (let ((dest "")
+ (i 0)
+ (len (length str))
+ chr flag)
+ (while (< i len)
+ (setq chr (aref str i))
+ (if (or flag (not (eq chr ?\\)))
+ (progn
+ (setq dest (concat dest (char-to-string chr)))
+ (setq flag nil)
+ )
+ (setq flag t)
+ )
+ (setq i (+ i 1))
+ )
+ dest))
+
+(defun std11-strip-quoted-string (string)
+ "Strip quoted-string STRING. [std11.el]"
+ (std11-strip-quoted-pair
+ (let ((max (1- (length string))))
+ (if (and (eq (aref string 0) ?\")
+ (eq (aref string max) ?\")
+ )
+ (substring string 1 max)
+ string)
+ )))
+
+
;;; @ composer
;;;