(defcustom mm-body-charset-encoding-alist
'((iso-2022-jp . 7bit)
- (iso-2022-jp-2 . 7bit))
+ (iso-2022-jp-2 . 7bit)
+ ;; We MUST encode UTF-16 because it can contain \0's which is
+ ;; known to break servers.
+ ;; Note: UTF-16 variants are invalid for text parts [RFC 2781],
+ ;; so this can't happen :-/.
+ (utf-16 . base64)
+ (utf-16be . base64)
+ (utf-16le . base64))
"Alist of MIME charsets to encodings.
Valid encodings are `7bit', `8bit', `quoted-printable' and `base64'."
:type '(repeat (cons (symbol :tag "charset")
(defun mm-encode-body (&optional charset)
"Encode a body.
Should be called narrowed to the body that is to be encoded.
-If there is more than one non-ASCII MULE charset, then list of found
-MULE charsets are returned.
-If CHARSET is non-nil, it is used.
+If there is more than one non-ASCII MULE charset in the body, then the
+list of MULE charsets found is returned.
+If CHARSET is non-nil, it is used as the MIME charset to encode the body.
If successful, the MIME charset is returned.
If no encoding was done, nil is returned."
(if (not (mm-multibyte-p))
(message-options-get 'mm-encody-body-charset)
(message-options-set
'mm-encody-body-charset
- (mm-read-charset "Charset used in the article: ")))
+ (mm-read-coding-system "Charset used in the article: ")))
;; The logic in `mml-generate-mime-1' confirms that it's OK
;; to return nil here.
nil)))
charset)
(goto-char (point-min))
(let ((charsets (mm-find-mime-charset-region (point-min) (point-max)
- mm-hack-charsets))
- start)
+ mm-hack-charsets)))
(cond
;; No encoding.
((null charsets)
charsets)
;; We encode.
(t
- (setq charset (car charsets))
- (while (not (eobp))
- (if (eq (mm-charset-after) 'ascii)
- (when start
- (save-restriction
- (narrow-to-region start (point))
- (mm-encode-coding-region
- start (point) (mm-charset-to-coding-system charset))
- (goto-char (point-max)))
- (setq start nil))
- (unless start
- (setq start (point))))
- (forward-char 1))
- (when start
- (mm-encode-coding-region start (point)
- (mm-charset-to-coding-system charset))
- (setq start nil))
- charset)))))))
+ (prog1
+ (setq charset (car charsets))
+ (mm-encode-coding-region (point-min) (point-max)
+ (mm-charset-to-coding-system charset))))
+ ))))))
(defun mm-long-lines-p (length)
- "Say whether any of the lines in the buffer is longer than LINES."
+ "Say whether any of the lines in the buffer is longer than LENGTH."
(save-excursion
(goto-char (point-min))
(end-of-line)
bits)
((and (not mm-use-ultra-safe-encoding)
(not longp)
- (not (eq '7bit (cdr (assq charset mm-body-charset-encoding-alist))))
+ (not (cdr (assq charset mm-body-charset-encoding-alist)))
(or (eq t (cdr message-posting-charset))
(memq charset (cdr message-posting-charset))
(eq charset mail-parse-charset)))
(defun mm-body-7-or-8 ()
"Say whether the body is 7bit or 8bit."
- (cond
- ((not (featurep 'mule))
- (if (save-excursion
- (goto-char (point-min))
- (skip-chars-forward mm-7bit-chars)
- (eobp))
- '7bit
- '8bit))
- (t
- ;; Mule version
- (if (and (null (delq 'ascii
- (mm-find-charset-region (point-min) (point-max))))
- ;;!!!The following is necessary because the function
- ;;!!!above seems to return the wrong result under
- ;;!!!Emacs 20.3. Sometimes.
- (save-excursion
- (goto-char (point-min))
- (skip-chars-forward mm-7bit-chars)
- (eobp)))
- '7bit
- '8bit))))
+ (if (save-excursion
+ (goto-char (point-min))
+ (skip-chars-forward mm-7bit-chars)
+ (eobp))
+ '7bit
+ '8bit))
;;;
;;; Functions for decoding
;;;
+(eval-when-compile (defvar mm-uu-yenc-decode-function))
+
(defun mm-decode-content-transfer-encoding (encoding &optional type)
"Decodes buffer encoded with ENCODING, returning success status.
If TYPE is `text/plain' CRLF->LF translation may occur."
(while (search-forward "\r\n" nil t)
(replace-match "\n" t t)))))
-(defun mm-decode-body (charset &optional encoding type force)
- "Decode the current article that has been encoded with ENCODING.
-The characters in CHARSET should then be decoded. If FORCE is non-nil
-use the supplied charset unconditionally."
- (if (stringp charset)
- (setq charset (intern (downcase charset))))
- (if (or (not charset)
- (eq 'gnus-all mail-parse-ignored-charsets)
- (memq 'gnus-all mail-parse-ignored-charsets)
- (memq charset mail-parse-ignored-charsets))
- (setq charset mail-parse-charset))
+(defun mm-decode-body (charset &optional encoding type)
+ "Decode the current article that has been encoded with ENCODING to CHARSET.
+ENCODING is a MIME content transfer encoding.
+CHARSET is the MIME charset with which to decode the data after transfer
+decoding. If it is nil, default to `mail-parse-charset'."
+ (when (stringp charset)
+ (setq charset (intern (downcase charset))))
+ (when (or (not charset)
+ (eq 'gnus-all mail-parse-ignored-charsets)
+ (memq 'gnus-all mail-parse-ignored-charsets)
+ (memq charset mail-parse-ignored-charsets))
+ (setq charset mail-parse-charset))
(save-excursion
(when encoding
(mm-decode-content-transfer-encoding encoding type))
- (when (featurep 'mule)
+ (when (featurep 'mule) ; Fixme: Wrong test for unibyte session.
(let ((coding-system (mm-charset-to-coding-system charset)))
(if (and (not coding-system)
(listp mail-parse-ignored-charsets)
(or (not (eq coding-system 'ascii))
(setq coding-system mail-parse-charset))
(not (eq coding-system 'gnus-decoded)))
- (if force
- (mm-decode-coding-region (point-min) (point-max)
- coding-system)
- (mm-decode-coding-region-safely (point-min) (point-max)
- coding-system)))
+ (mm-decode-coding-region (point-min) (point-max)
+ coding-system))
(setq buffer-file-coding-system
(if (boundp 'last-coding-system-used)
- last-coding-system-used
+ (symbol-value 'last-coding-system-used)
coding-system))))))
-(defun mm-decode-coding-region-safely (start end coding-system)
- "Decode region between START and END with CODING-SYSTEM.
-If CODING-SYSTEM is not a valid coding system for the text, let Emacs
-decide which coding system to use."
- (let* ((orig (buffer-substring start end))
- charsets)
- (save-restriction
- (narrow-to-region start end)
- (mm-decode-coding-region (point-min) (point-max) coding-system)
- (setq charsets (find-charset-region (point-min) (point-max)))
- (when (or (memq 'eight-bit-control charsets)
- (memq 'eight-bit-graphic charsets))
- (delete-region (point-min) (point-max))
- (insert orig)
- (mm-decode-coding-region (point-min) (point-max) 'undecided)))))
-
(defun mm-decode-string (string charset)
"Decode STRING with CHARSET."
(when (stringp charset)