(defun utf7-encode (string &optional for-imap)
"Encode UTF-7 STRING. Use IMAP modification if FOR-IMAP is non-nil."
- (let ((default-enable-multibyte-characters t))
- (with-temp-buffer
- (insert string)
- (utf7-encode-internal for-imap)
- (buffer-string))))
+ (if (and (coding-system-p 'utf-7) (coding-system-p 'utf-7-imap))
+ ;; Emacs 23 with proper support for IMAP
+ (encode-coding-string string (if for-imap 'utf-7-imap 'utf-7))
+ (let ((default-enable-multibyte-characters t))
+ (with-temp-buffer
+ (insert string)
+ (utf7-encode-internal for-imap)
+ (buffer-string)))))
(defun utf7-decode (string &optional for-imap)
"Decode UTF-7 STRING. Use IMAP modification if FOR-IMAP is non-nil."
- (let ((default-enable-multibyte-characters nil))
- (with-temp-buffer
- (insert string)
- (utf7-decode-internal for-imap)
- (mm-enable-multibyte)
- (buffer-string))))
+ (if (and (coding-system-p 'utf-7) (coding-system-p 'utf-7-imap))
+ ;; Emacs 23 with proper support for IMAP
+ (decode-coding-string string (if for-imap 'utf-7-imap 'utf-7))
+ (let ((default-enable-multibyte-characters nil))
+ (with-temp-buffer
+ (insert string)
+ (utf7-decode-internal for-imap)
+ (mm-enable-multibyte)
+ (buffer-string)))))
(provide 'utf7)