;;; mcs-e20.el --- MIME charset implementation for Emacs 20.1 and 20.2
-;; Copyright (C) 1996,1997,1998 Free Software Foundation, Inc.
+;; Copyright (C) 1996,1997,1998,1999 Free Software Foundation, Inc.
-;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
+;; Author: MORIOKA Tomohiko <tomo@m17n.org>
;; Keywords: emulation, compatibility, Mule
;; This file is part of APEL (A Portable Emacs Library).
;;; Code:
-(defsubst encode-mime-charset-region (start end charset)
+(eval-when-compile
+ (require 'static)
+ (require 'poem)
+ )
+
+(defsubst encode-mime-charset-region (start end charset &optional lbt)
"Encode the text between START and END as MIME CHARSET."
(let (cs)
(if (and enable-multibyte-characters
- (setq cs (mime-charset-to-coding-system charset)))
+ (setq cs (mime-charset-to-coding-system charset lbt)))
(encode-coding-region start end cs)
)))
)))
-(defsubst encode-mime-charset-string (string charset)
+(defsubst encode-mime-charset-string (string charset &optional lbt)
"Encode the STRING as MIME CHARSET."
(let (cs)
(if (and enable-multibyte-characters
- (setq cs (mime-charset-to-coding-system charset)))
+ (setq cs (mime-charset-to-coding-system charset lbt)))
(encode-coding-string string cs)
string)))
((ascii latin-jisx0201
katakana-jisx0201 japanese-jisx0208) . shift_jis)
((ascii korean-ksc5601) . euc-kr)
- ((ascii chinese-gb2312) . cn-gb-2312)
- ((ascii chinese-big5-1 chinese-big5-2) . cn-big5)
+ ((ascii chinese-gb2312) . gb2312)
+ ((ascii chinese-big5-1 chinese-big5-2) . big5)
+ ((ascii thai-tis620 composition) . tis-620)
((ascii latin-iso8859-1 greek-iso8859-7
latin-jisx0201 japanese-jisx0208-1978
chinese-gb2312 japanese-jisx0208
korean-ksc5601 japanese-jisx0212) . iso-2022-jp-2)
- ((ascii latin-iso8859-1 greek-iso8859-7
- latin-jisx0201 japanese-jisx0208-1978
- chinese-gb2312 japanese-jisx0208
- korean-ksc5601 japanese-jisx0212
- chinese-cns11643-1 chinese-cns11643-2) . iso-2022-int-1)
- ((ascii latin-iso8859-1 latin-iso8859-2
- cyrillic-iso8859-5 greek-iso8859-7
- latin-jisx0201 japanese-jisx0208-1978
- chinese-gb2312 japanese-jisx0208
- korean-ksc5601 japanese-jisx0212
- chinese-cns11643-1 chinese-cns11643-2
- chinese-cns11643-3 chinese-cns11643-4
- chinese-cns11643-5 chinese-cns11643-6
- chinese-cns11643-7) . iso-2022-int-1)
+; ((ascii latin-iso8859-1 greek-iso8859-7
+; latin-jisx0201 japanese-jisx0208-1978
+; chinese-gb2312 japanese-jisx0208
+; korean-ksc5601 japanese-jisx0212
+; chinese-cns11643-1 chinese-cns11643-2) . iso-2022-int-1)
+; ((ascii latin-iso8859-1 latin-iso8859-2
+; cyrillic-iso8859-5 greek-iso8859-7
+; latin-jisx0201 japanese-jisx0208-1978
+; chinese-gb2312 japanese-jisx0208
+; korean-ksc5601 japanese-jisx0212
+; chinese-cns11643-1 chinese-cns11643-2
+; chinese-cns11643-3 chinese-cns11643-4
+; chinese-cns11643-5 chinese-cns11643-6
+; chinese-cns11643-7) . iso-2022-int-1)
+ ))
+
+(defun-maybe coding-system-get (coding-system prop)
+ "Extract a value from CODING-SYSTEM's property list for property PROP."
+ (plist-get (coding-system-plist coding-system) prop)
+ )
+
+(defun coding-system-to-mime-charset (coding-system)
+ "Convert CODING-SYSTEM to a MIME-charset.
+Return nil if corresponding MIME-charset is not found."
+ (or (car (rassq coding-system mime-charset-coding-system-alist))
+ (coding-system-get coding-system 'mime-charset)
+ ))
+
+(defun-maybe-cond mime-charset-list ()
+ "Return a list of all existing MIME-charset."
+ ((boundp 'coding-system-list)
+ (let ((dest (mapcar (function car) mime-charset-coding-system-alist))
+ (rest coding-system-list)
+ cs)
+ (while rest
+ (setq cs (car rest))
+ (unless (rassq cs mime-charset-coding-system-alist)
+ (if (setq cs (coding-system-get cs 'mime-charset))
+ (or (rassq cs mime-charset-coding-system-alist)
+ (memq cs dest)
+ (setq dest (cons cs dest))
+ )))
+ (setq rest (cdr rest)))
+ dest))
+ (t
+ (let ((dest (mapcar (function car) mime-charset-coding-system-alist))
+ (rest (coding-system-list))
+ cs)
+ (while rest
+ (setq cs (car rest))
+ (unless (rassq cs mime-charset-coding-system-alist)
+ (when (setq cs (or (coding-system-get cs 'mime-charset)
+ (and
+ (setq cs (aref
+ (coding-system-get cs 'coding-spec)
+ 2))
+ (string-match "(MIME:[ \t]*\\([^,)]+\\)" cs)
+ (match-string 1 cs))))
+ (setq cs (intern (downcase cs)))
+ (or (rassq cs mime-charset-coding-system-alist)
+ (memq cs dest)
+ (setq dest (cons cs dest))
+ )))
+ (setq rest (cdr rest)))
+ dest)
+ ))
+
+(static-when (and (string= (decode-coding-string "\e.A\eN!" 'ctext) "\eN!")
+ (or (not (find-coding-system 'x-ctext))
+ (coding-system-get 'x-ctext 'apel)))
+ (unless (find-coding-system 'x-ctext)
+ (make-coding-system
+ 'x-ctext 2 ?x
+ "Compound text based generic encoding for decoding unknown messages."
+ '((ascii t) (latin-iso8859-1 t) t t
+ nil ascii-eol ascii-cntl nil locking-shift single-shift nil nil nil
+ init-bol nil nil)
+ '((safe-charsets . t)
+ (mime-charset . x-ctext)))
+ (coding-system-put 'x-ctext 'apel t)
))
(require 'mcs-20)
-(provide 'mcs-e20)
+(require 'product)
+(product-provide (provide 'mcs-e20) (require 'apel-ver))
;;; mcs-e20.el ends here
projects / elisp / apel.git / blobdiff