;;; rfc2047.el --- functions for encoding and decoding rfc2047 messages
;; Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004,
-;; 2005, 2006, 2007 Free Software Foundation, Inc.
+;; 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
;; Author: Lars Magne Ingebrigtsen <larsi@gnus.org>
;; MORIOKA Tomohiko <morioka@jaist.ac.jp>
;; This file is part of GNU Emacs.
-;; GNU Emacs is free software; you can redistribute it and/or modify
+;; GNU Emacs is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
-;; the Free Software Foundation; either version 3, or (at your option)
-;; any later version.
+;; the Free Software Foundation, either version 3 of the License, or
+;; (at your option) any later version.
;; GNU Emacs is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
-;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
-;; along with GNU Emacs; see the file COPYING. If not, write to the
-;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
-;; Boston, MA 02110-1301, USA.
+;; along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
(iso-2022-jp . B)
(iso-2022-kr . B)
(gb2312 . B)
+ (gbk . B)
+ (gb18030 . B)
(big5 . B)
(cn-big5 . B)
(cn-gb . B)
;; 8-bit names. The group name mail copy just got
;; unconditionally encoded. Previously, it would ask
;; whether to encode, which was quite confusing for the
- ;; user. If the new behaviour is wrong, tell me. I have
+ ;; user. If the new behavior is wrong, tell me. I have
;; left the old code commented out below.
;; -- Per Abrahamsen <abraham@dina.kvl.dk> Date: 2001-10-07.
;; Modified by Dave Love, with the commented-out code changed
;; (make-char-table 'syntax-table '(2)) only works in Emacs.
(let ((table (make-syntax-table)))
;; The following is done to work for setting all elements of the table
- ;; in Emacs 21 and 22 and XEmacs; it appears to be the cleanest way.
+ ;; in Emacs 21-23 and XEmacs; it appears to be the cleanest way.
;; Play safe and don't assume the form of the word syntax entry --
;; copy it from ?a.
(if (fboundp 'set-char-table-range) ; Emacs
(error
(goto-char beg))))))))
-(defun rfc2047-charset-to-coding-system (charset)
+(defun rfc2047-charset-to-coding-system (charset &optional allow-override)
"Return coding-system corresponding to MIME CHARSET.
-If your Emacs implementation can't decode CHARSET, return nil."
+If your Emacs implementation can't decode CHARSET, return nil.
+
+If allow-override is given, use `mm-charset-override-alist' to
+map undesired charset names to their replacement. This should
+only be used for decoding, not for encoding."
(when (stringp charset)
(setq charset (intern (downcase charset))))
(when (or (not charset)
(memq 'gnus-all mail-parse-ignored-charsets)
(memq charset mail-parse-ignored-charsets))
(setq charset mail-parse-charset))
- (let ((cs (mm-charset-to-coding-system charset)))
+ (let ((cs (mm-charset-to-coding-system charset nil allow-override)))
(cond ((eq cs 'ascii)
(setq cs (or (mm-charset-to-coding-system mail-parse-charset)
'raw-text)))
(while words
(setq word (pop words))
(if (and (setq cs (rfc2047-charset-to-coding-system
- (setq charset (car word))))
+ (setq charset (car word)) t))
(condition-case code
(cond ((char-equal ?B (nth 1 word))
(setq text (base64-decode-string
(setq start (point))
(setq quoted (eq (char-after) ?\"))
(goto-char (point-max))
- (skip-chars-backward " \t")
+ (skip-chars-backward " \t" start)
(if (setq quoted (and quoted
(> (point) (1+ start))
(eq (char-before) ?\")))
"Decode MIME-encoded STRING and return the result.
If ADDRESS-MIME is non-nil, strip backslashes which precede characters
other than `\"' and `\\' in quoted strings."
- (let ((m (mm-multibyte-p)))
+ ;; (let ((m (mm-multibyte-p)))
(if (string-match "=\\?" string)
(with-temp-buffer
- ;; Fixme: This logic is wrong, but seems to be required by
- ;; Gnus summary buffer generation. The value of `m' depends
- ;; on the current buffer, not global multibyteness or that
- ;; of the string. Also the string returned should always be
- ;; multibyte in a multibyte session, i.e. the buffer should
- ;; be multibyte before `buffer-string' is called.
- (when m
- (mm-enable-multibyte))
+ ;; We used to only call mm-enable-multibyte if `m' is non-nil,
+ ;; but this can't be the right criterion. Don't just revert this
+ ;; change if it encounters a bug. Please help me fix it
+ ;; right instead. --Stef
+ ;; The string returned should always be multibyte in a multibyte
+ ;; session, i.e. the buffer should be multibyte before
+ ;; `buffer-string' is called.
+ (mm-enable-multibyte)
(insert string)
(inline
(rfc2047-decode-region (point-min) (point-max) address-mime))
(rfc2047-strip-backslashes-in-quoted-strings)
(buffer-string))))
;; Fixme: As above, `m' here is inappropriate.
- (if (and m
+ (if (and ;; m
mail-parse-charset
(not (eq mail-parse-charset 'us-ascii))
(not (eq mail-parse-charset 'gnus-decoded)))
(if (and (fboundp 'detect-coding-string)
;; string is purely ASCII
(eq (detect-coding-string string t) 'undecided))
- string
- (mm-decode-coding-string string mail-parse-charset))
- (mm-string-as-multibyte string)))))
+ string
+ (mm-decode-coding-string string mail-parse-charset))
+ (mm-string-to-multibyte string)))) ;; )
(defun rfc2047-decode-address-string (string)
"Decode MIME-encoded STRING and return the result.
(provide 'rfc2047)
-;;; arch-tag: a07fe3d4-22b5-4c4a-bd89-b1f82d5d36f6
+;; arch-tag: a07fe3d4-22b5-4c4a-bd89-b1f82d5d36f6
;;; rfc2047.el ends here