New module.

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+;;; emu-e20_3.el --- emu API implementation for Emacs 20.3.
+
+;; Copyright (C) 1998 Free Software Foundation, Inc.
+
+;; Author: MORIOKA Tomohiko <morioka@jaist.ac.jp>
+;; Keywords: emulation, compatibility, Mule
+
+;; This file is part of emu.
+
+;; 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 Emacs; 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 Emacs 20.0.91 or later.
+
+;;; Code:
+
+;;; @ character
+;;;
+
+(defsubst char-length (char)
+  "Return indexing length of multi-byte form of CHAR."
+  1)
+
+(defmacro char-next-index (char index)
+  "Return index of character succeeding CHAR whose index is INDEX."
+  `(1+ index))
+
+
+;;; @ string
+;;;
+
+(defalias 'sset 'store-substring)
+
+(defun string-to-char-list (string)
+  "Return a list of which elements are characters in the STRING."
+  (mapcar #'identity string))
+
+(defalias 'string-to-int-list 'string-to-char-list)
+
+
+;;; @ end
+;;;
+
+(provide 'emu-e20_3)
+
+;;; emu-e20_3.el ends here