encodingmap.java

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/*
 * The Apache Software License, Version 1.1
 *
 *
 * Copyright (c) 1999-2002 The Apache Software Foundation.  
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer. 
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:  
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Xerces" and "Apache Software Foundation" must
 *    not be used to endorse or promote products derived from this
 *    software without prior written permission. For written 
 *    permission, please contact [e-mail].
 *
 * 5. Products derived from this software may not be called "Apache",
 *    nor may "Apache" appear in their name, without prior written
 *    permission of the Apache Software Foundation.
 *
 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED.  IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation and was
 * originally based on software copyright (c) 1999, International
 * Business Machines, Inc., http://www.apache.org.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */

package com.sun.org.apache.xerces.internal.util;

import java.util.Hashtable;

/**
 * EncodingMap is a convenience class which handles conversions between 
 * IANA encoding names and Java encoding names, and vice versa. The
 * encoding names used in XML instance documents <strong>must</strong>
 * be the IANA encoding names specified or one of the aliases for those names
 * which IANA defines.
 * <p>
 * <TABLE BORDER="0" WIDTH="100%">
 *  <TR>
 *      <TD WIDTH="33%">
 *          <P ALIGN="CENTER"><B>Common Name</B>
 *      </TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER"><B>Use this name in XML files</B>
 *      </TD>
 *      <TD WIDTH="12%">
 *          <P ALIGN="CENTER"><B>Name Type</B>
 *      </TD>
 *      <TD WIDTH="31%">
 *          <P ALIGN="CENTER"><B>Xerces converts to this Java Encoder Name</B>
 *      </TD>
 *  </TR>
 *  <TR>
 *      <TD WIDTH="33%">8 bit Unicode</TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER">UTF-8
 *      </TD>
 *      <TD WIDTH="12%">
 *          <P ALIGN="CENTER">IANA
 *      </TD>
 *      <TD WIDTH="31%">
 *          <P ALIGN="CENTER">UTF8
 *      </TD>
 *  </TR>
 *  <TR>
 *      <TD WIDTH="33%">ISO Latin 1</TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER">ISO-8859-1
 *      </TD>
 *      <TD WIDTH="12%">
 *          <P ALIGN="CENTER">MIME
 *      </TD>
 *      <TD WIDTH="31%">
 *          <P ALIGN="CENTER">ISO-8859-1
 *      </TD>
 *  </TR>
 *  <TR>
 *      <TD WIDTH="33%">ISO Latin 2</TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER">ISO-8859-2
 *      </TD>
 *      <TD WIDTH="12%">
 *          <P ALIGN="CENTER">MIME
 *      </TD>
 *      <TD WIDTH="31%">
 *          <P ALIGN="CENTER">ISO-8859-2
 *      </TD>
 *  </TR>
 *  <TR>
 *      <TD WIDTH="33%">ISO Latin 3</TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER">ISO-8859-3
 *      </TD>
 *      <TD WIDTH="12%">
 *          <P ALIGN="CENTER">MIME
 *      </TD>
 *      <TD WIDTH="31%">
 *          <P ALIGN="CENTER">ISO-8859-3
 *      </TD>
 *  </TR>
 *  <TR>
 *      <TD WIDTH="33%">ISO Latin 4</TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER">ISO-8859-4
 *      </TD>
 *      <TD WIDTH="12%">
 *          <P ALIGN="CENTER">MIME
 *      </TD>
 *      <TD WIDTH="31%">
 *          <P ALIGN="CENTER">ISO-8859-4
 *      </TD>
 *  </TR>
 *  <TR>
 *      <TD WIDTH="33%">ISO Latin Cyrillic</TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER">ISO-8859-5
 *      </TD>
 *      <TD WIDTH="12%">
 *          <P ALIGN="CENTER">MIME
 *      </TD>
 *      <TD WIDTH="31%">
 *          <P ALIGN="CENTER">ISO-8859-5
 *      </TD>
 *  </TR>
 *  <TR>
 *      <TD WIDTH="33%">ISO Latin Arabic</TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER">ISO-8859-6
 *      </TD>
 *      <TD WIDTH="12%">
 *          <P ALIGN="CENTER">MIME
 *      </TD>
 *      <TD WIDTH="31%">
 *          <P ALIGN="CENTER">ISO-8859-6
 *      </TD>
 *  </TR>
 *  <TR>
 *      <TD WIDTH="33%">ISO Latin Greek</TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER">ISO-8859-7
 *      </TD>
 *      <TD WIDTH="12%">
 *          <P ALIGN="CENTER">MIME
 *      </TD>
 *      <TD WIDTH="31%">
 *          <P ALIGN="CENTER">ISO-8859-7
 *      </TD>
 *  </TR>
 *  <TR>
 *      <TD WIDTH="33%">ISO Latin Hebrew</TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER">ISO-8859-8
 *      </TD>
 *      <TD WIDTH="12%">
 *          <P ALIGN="CENTER">MIME
 *      </TD>
 *      <TD WIDTH="31%">
 *          <P ALIGN="CENTER">ISO-8859-8
 *      </TD>
 *  </TR>
 *  <TR>
 *      <TD WIDTH="33%">ISO Latin 5</TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER">ISO-8859-9
 *      </TD>
 *      <TD WIDTH="12%">
 *          <P ALIGN="CENTER">MIME
 *      </TD>
 *      <TD WIDTH="31%">
 *          <P ALIGN="CENTER">ISO-8859-9
 *      </TD>
 *  </TR>
 *  <TR>
 *      <TD WIDTH="33%">EBCDIC: US</TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER">ebcdic-cp-us
 *      </TD>
 *      <TD WIDTH="12%">
 *          <P ALIGN="CENTER">IANA
 *      </TD>
 *      <TD WIDTH="31%">
 *          <P ALIGN="CENTER">cp037
 *      </TD>
 *  </TR>
 *  <TR>
 *      <TD WIDTH="33%">EBCDIC: Canada</TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER">ebcdic-cp-ca
 *      </TD>
 *      <TD WIDTH="12%">
 *          <P ALIGN="CENTER">IANA
 *      </TD>
 *      <TD WIDTH="31%">
 *          <P ALIGN="CENTER">cp037
 *      </TD>
 *  </TR>
 *  <TR>
 *      <TD WIDTH="33%">EBCDIC: Netherlands</TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER">ebcdic-cp-nl
 *      </TD>
 *      <TD WIDTH="12%">
 *          <P ALIGN="CENTER">IANA
 *      </TD>
 *      <TD WIDTH="31%">
 *          <P ALIGN="CENTER">cp037
 *      </TD>
 *  </TR>
 *  <TR>
 *      <TD WIDTH="33%">EBCDIC: Denmark</TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER">ebcdic-cp-dk
 *      </TD>
 *      <TD WIDTH="12%">
 *          <P ALIGN="CENTER">IANA
 *      </TD>
 *      <TD WIDTH="31%">
 *          <P ALIGN="CENTER">cp277
 *      </TD>
 *  </TR>
 *  <TR>
 *      <TD WIDTH="33%">EBCDIC: Norway</TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER">ebcdic-cp-no
 *      </TD>
 *      <TD WIDTH="12%">
 *          <P ALIGN="CENTER">IANA
 *      </TD>
 *      <TD WIDTH="31%">
 *          <P ALIGN="CENTER">cp277
 *      </TD>
 *  </TR>
 *  <TR>
 *      <TD WIDTH="33%">EBCDIC: Finland</TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER">ebcdic-cp-fi
 *      </TD>
 *      <TD WIDTH="12%">
 *          <P ALIGN="CENTER">IANA
 *      </TD>
 *      <TD WIDTH="31%">
 *          <P ALIGN="CENTER">cp278
 *      </TD>
 *  </TR>
 *  <TR>
 *      <TD WIDTH="33%">EBCDIC: Sweden</TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER">ebcdic-cp-se
 *      </TD>
 *      <TD WIDTH="12%">
 *          <P ALIGN="CENTER">IANA
 *      </TD>
 *      <TD WIDTH="31%">
 *          <P ALIGN="CENTER">cp278
 *      </TD>
 *  </TR>
 *  <TR>
 *      <TD WIDTH="33%">EBCDIC: Italy</TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER">ebcdic-cp-it
 *      </TD>
 *      <TD WIDTH="12%">
 *          <P ALIGN="CENTER">IANA
 *      </TD>
 *      <TD WIDTH="31%">
 *          <P ALIGN="CENTER">cp280
 *      </TD>
 *  </TR>
 *  <TR>
 *      <TD WIDTH="33%">EBCDIC: Spain, Latin America</TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER">ebcdic-cp-es
 *      </TD>
 *      <TD WIDTH="12%">
 *          <P ALIGN="CENTER">IANA
 *      </TD>
 *      <TD WIDTH="31%">
 *          <P ALIGN="CENTER">cp284
 *      </TD>
 *  </TR>
 *  <TR>
 *      <TD WIDTH="33%">EBCDIC: Great Britain</TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER">ebcdic-cp-gb
 *      </TD>
 *      <TD WIDTH="12%">
 *          <P ALIGN="CENTER">IANA
 *      </TD>
 *      <TD WIDTH="31%">
 *          <P ALIGN="CENTER">cp285
 *      </TD>
 *  </TR>
 *  <TR>
 *      <TD WIDTH="33%">EBCDIC: France</TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER">ebcdic-cp-fr
 *      </TD>
 *      <TD WIDTH="12%">
 *          <P ALIGN="CENTER">IANA
 *      </TD>
 *      <TD WIDTH="31%">
 *          <P ALIGN="CENTER">cp297
 *      </TD>
 *  </TR>
 *  <TR>
 *      <TD WIDTH="33%">EBCDIC: Arabic</TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER">ebcdic-cp-ar1
 *      </TD>
 *      <TD WIDTH="12%">
 *          <P ALIGN="CENTER">IANA
 *      </TD>
 *      <TD WIDTH="31%">
 *          <P ALIGN="CENTER">cp420
 *      </TD>
 *  </TR>
 *  <TR>
 *      <TD WIDTH="33%">EBCDIC: Hebrew</TD>
 *      <TD WIDTH="15%">
 *          <P ALIGN="CENTER">ebcdic-cp-he