1 /*

     2  * Copyright (c) 2002, 2010, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.  Oracle designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Oracle in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    22  * or visit www.oracle.com if you need additional information or have any

    23  * questions.

    24  */

    25 

    26 package sun.nio.cs.ext;

    27 

    28 import java.nio.charset.Charset;

    29 import java.nio.charset.CharsetDecoder;

    30 import java.nio.charset.CharsetEncoder;

    31 import sun.nio.cs.HistoricallyNamedCharset;

    32 import static sun.nio.cs.CharsetMapping.*;

    33 

    34 public class MS950_HKSCS_XP extends Charset

    35 {

    36     public MS950_HKSCS_XP() {

    37         super("x-MS950-HKSCS-XP", ExtendedCharsets.aliasesFor("x-MS950-HKSCS-XP"));

    38     }

    39 

    40     public boolean contains(Charset cs) {

    41         return ((cs.name().equals("US-ASCII"))

    42                 || (cs instanceof MS950)

    43                 || (cs instanceof MS950_HKSCS_XP));

    44     }

    45 

    46     public CharsetDecoder newDecoder() {

    47         return new Decoder(this);

    48     }

    49 

    50     public CharsetEncoder newEncoder() {

    51         return new Encoder(this);

    52     }

    53 

    54     static class Decoder extends HKSCS.Decoder {

    55         private static DoubleByte.Decoder ms950 =

    56             (DoubleByte.Decoder)new MS950().newDecoder();

    57 

    58         /*

    59          * Note current decoder decodes 0x8BC2 --> U+F53A

    60          * ie. maps to Unicode PUA.

    61          * Unaccounted discrepancy between this mapping

    62          * inferred from MS950/windows-950 and the published

    63          * MS HKSCS mappings which maps 0x8BC2 --> U+5C22

    64          * a character defined with the Unified CJK block

    65          */

    66         private static char[][] b2cBmp = new char[0x100][];

    67         static {

    68             initb2c(b2cBmp, HKSCS_XPMapping.b2cBmpStr);

    69         }

    70 

    71         public char decodeDoubleEx(int b1, int b2) {

    72             return UNMAPPABLE_DECODING;

    73         }

    74 

    75         private Decoder(Charset cs) {

    76             super(cs, ms950, b2cBmp, null);

    77         }

    78     }

    79 

    80     private static class Encoder extends HKSCS.Encoder {

    81         private static DoubleByte.Encoder ms950 =

    82             (DoubleByte.Encoder)new MS950().newEncoder();

    83 

    84         /*

    85          * Note current encoder encodes U+F53A --> 0x8BC2

    86          * Published MS HKSCS mappings show

    87          * U+5C22 <--> 0x8BC2

    88          */

    89         static char[][] c2bBmp = new char[0x100][];

    90         static {

    91             initc2b(c2bBmp, HKSCS_XPMapping.b2cBmpStr, null);

    92         }

    93 

    94         public int encodeSupp(int cp) {

    95             return UNMAPPABLE_ENCODING;

    96         }

    97 

    98         private Encoder(Charset cs) {

    99             super(cs, ms950, c2bBmp, null);

   100         }

   101     }

   102 }