+ ;; Quote decoded words if there are special characters
+ ;; which might violate RFC2822.
+ (when (and rfc2047-quote-decoded-words-containing-tspecials
+ (let ((regexp (car (rassq
+ 'address-mime
+ rfc2047-header-encoding-alist))))
+ (when regexp
+ (save-restriction
+ (widen)
+ (beginning-of-line)
+ (while (and (memq (char-after) '(? ?\t))
+ (zerop (forward-line -1))))
+ (looking-at regexp)))))
+ (let (quoted)
+ (goto-char e)
+ (skip-chars-forward " \t")
+ (setq start (point))
+ (setq quoted (eq (char-after) ?\"))
+ (goto-char (point-max))
+ (skip-chars-backward " \t")
+ (if (setq quoted (and quoted
+ (> (point) (1+ start))
+ (eq (char-before) ?\")))
+ (progn
+ (backward-char)
+ (setq start (1+ start)
+ end (point-marker)))
+ (setq end (point-marker)))
+ (goto-char start)
+ (while (search-forward "\"" end t)
+ (when (prog2
+ (backward-char)
+ (zerop (% (skip-chars-backward "\\\\") 2))
+ (goto-char (match-beginning 0)))
+ (insert "\\"))
+ (forward-char))
+ (when (and (not quoted)
+ (progn
+ (goto-char start)
+ (re-search-forward
+ (concat "[" ietf-drums-tspecials "]")
+ end t)))
+ (goto-char start)
+ (insert "\"")
+ (goto-char end)
+ (insert "\""))
+ (set-marker end nil)))