--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/lisp/apel/emu-x20.el	Mon Aug 13 09:39:39 2007 +0200
@@ -0,0 +1,199 @@
+;;; emu-x20.el --- emu API implementation for XEmacs 20 with mule
+
+;; Copyright (C) 1994,1995,1996,1997 MORIOKA Tomohiko
+
+;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
+;; Version: $Id: emu-x20.el,v 1.1 1997/06/03 04:18:35 steve Exp $
+;; Keywords: emulation, compatibility, Mule, XEmacs
+
+;; This file is part of XEmacs.
+
+;; This program 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 2, or (at
+;; your option) any later version.
+
+;; This program 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 GNU
+;; General Public License for more details.
+
+;; You should have received a copy of the GNU General Public License
+;; along with GNU XEmacs; see the file COPYING.  If not, write to the
+;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+
+;;; Commentary:
+
+;; This module requires XEmacs 20.1 b12 or later with mule.
+
+;;; Code:
+
+(require 'cyrillic)
+(require 'emu-xemacs)
+
+
+;;; @ coding-system
+;;;
+
+(defconst *noconv* 'binary)
+
+(defmacro as-binary-process (&rest body)
+  `(let (selective-display	; Disable ^M to nl translation.
+	 (coding-system-for-read  'binary)
+	 (coding-system-for-write 'binary))
+     ,@body))
+
+(defmacro as-binary-input-file (&rest body)
+  `(let ((coding-system-for-read 'binary))
+     ,@body))
+
+(defmacro as-binary-output-file (&rest body)
+  `(let ((coding-system-for-write 'binary))
+     ,@body))
+
+
+;;; @ binary access
+;;;
+
+(defun insert-binary-file-contents-literally
+  (filename &optional visit beg end replace)
+  "Like `insert-file-contents-literally', q.v., but don't code conversion.
+A buffer may be modified in several ways after reading into the buffer due
+to advanced Emacs features, such as file-name-handlers, format decoding,
+find-file-hooks, etc.
+  This function ensures that none of these modifications will take place."
+  (let ((coding-system-for-read 'binary))
+    (insert-file-contents-literally filename visit beg end replace)
+    ))
+
+
+;;; @ MIME charset
+;;;
+
+(defvar charsets-mime-charset-alist
+  '(((ascii)						. us-ascii)
+    ((ascii latin-iso8859-1)				. iso-8859-1)
+    ((ascii latin-iso8859-2)				. iso-8859-2)
+    ((ascii latin-iso8859-3)				. iso-8859-3)
+    ((ascii latin-iso8859-4)				. iso-8859-4)
+;;; ((ascii cyrillic-iso8859-5)				. iso-8859-5)
+    ((ascii cyrillic-iso8859-5)				. koi8-r)
+    ((ascii arabic-iso8859-6)				. iso-8859-6)
+    ((ascii greek-iso8859-7)				. iso-8859-7)
+    ((ascii hebrew-iso8859-8)				. iso-8859-8)
+    ((ascii latin-iso8859-9)				. iso-8859-9)
+    ((ascii latin-jisx0201
+	    japanese-jisx0208-1978 japanese-jisx0208)	. iso-2022-jp)
+    ((ascii korean-ksc5601)				. euc-kr)
+    ((ascii chinese-gb2312)				. cn-gb-2312)
+    ((ascii chinese-big5-1 chinese-big5-2)		. cn-big5)
+    ((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)
+    ))
+
+(defvar default-mime-charset 'x-ctext)
+
+(defvar mime-charset-coding-system-alist
+  '((iso-8859-1		. ctext)
+    (x-ctext		. ctext)
+    (hz-gb-2312		. hz)
+    (cn-gb-2312		. euc-china)
+    (gb2312		. euc-china)
+    (cn-big5		. big5)
+    (koi8-r		. koi8)
+    (iso-2022-jp-2	. iso-2022-ss2-7)
+    ))
+
+(defun mime-charset-to-coding-system (charset)
+  "Return coding-system by MIME charset."
+  (if (stringp charset)
+      (setq charset (intern (downcase charset)))
+    )
+  (or (cdr (assq charset mime-charset-coding-system-alist))
+      (and (memq charset (coding-system-list)) charset)
+      ))
+
+(defun detect-mime-charset-region (start end)
+  "Return MIME charset for region between START and END."
+  (charsets-to-mime-charset (charsets-in-region start end)))
+
+(defun encode-mime-charset-region (start end charset)
+  "Encode the text between START and END as MIME CHARSET."
+  (let ((cs (mime-charset-to-coding-system charset)))
+    (if cs
+	(encode-coding-region start end cs)
+      )))
+
+(defun decode-mime-charset-region (start end charset)
+  "Decode the text between START and END as MIME CHARSET."
+  (let ((cs (mime-charset-to-coding-system charset)))
+    (if cs
+	(decode-coding-region start end cs)
+      )))
+
+(defun encode-mime-charset-string (string charset)
+  "Encode the STRING as MIME CHARSET."
+  (let ((cs (mime-charset-to-coding-system charset)))
+    (if cs
+	(encode-coding-string string cs)
+      string)))
+
+(defun decode-mime-charset-string (string charset)
+  "Decode the STRING as MIME CHARSET."
+  (let ((cs (mime-charset-to-coding-system charset)))
+    (if cs
+	(decode-coding-string string cs)
+      string)))
+
+
+;;; @ character
+;;;
+
+;;; @@ Mule emulating aliases
+;;;
+;;; You should not use them.
+
+(defalias 'char-leading-char 'char-charset)
+
+(defun char-category (character)
+  "Return string of category mnemonics for CHAR in TABLE.
+CHAR can be any multilingual character
+TABLE defaults to the current buffer's category table."
+  (mapconcat (lambda (chr)
+	       (char-to-string (int-char chr))
+	       )
+	     (char-category-list character)
+	     ""))
+
+
+;;; @ string
+;;;
+
+(defun string-to-int-list (str)
+  (mapcar #'char-int str)
+  )
+
+
+;;; @ end
+;;;
+
+(provide 'emu-x20)
+
+;;; emu-x20.el ends here