1 /* 2 * Copyright (c) 2008, 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.CharsetEncoder; 30 import java.nio.charset.CharsetDecoder; 31 import sun.nio.cs.DoubleByte; 32 import sun.nio.cs.*; 33 import static sun.nio.cs.CharsetMapping.*; 34 35 public class MS932_0213 extends Charset { 36 public MS932_0213() { 37 super("x-MS932_0213", ExtendedCharsets.aliasesFor("MS932_0213")); 38 } 39 40 public boolean contains(Charset cs) { 41 return ((cs.name().equals("US-ASCII")) 42 || (cs instanceof MS932) 43 || (cs instanceof MS932_0213)); 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 protected static class Decoder extends SJIS_0213.Decoder { 55 static DoubleByte.Decoder decMS932 = 56 (DoubleByte.Decoder)new MS932().newDecoder(); 57 protected Decoder(Charset cs) { 58 super(cs); 59 } 60 61 protected char decodeDouble(int b1, int b2) { 62 char c = decMS932.decodeDouble(b1, b2); 63 if (c == UNMAPPABLE_DECODING) 64 return super.decodeDouble(b1, b2); 65 return c; 66 } 67 } 68 69 protected static class Encoder extends SJIS_0213.Encoder { 70 // we only use its encodeChar() method 71 static DoubleByte.Encoder encMS932 = 72 (DoubleByte.Encoder)new MS932().newEncoder(); 73 protected Encoder(Charset cs) { 74 super(cs); 75 } 76 77 protected int encodeChar(char ch) { 78 int db = encMS932.encodeChar(ch); 79 if (db == UNMAPPABLE_ENCODING) 80 return super.encodeChar(ch); 81 return db; 82 } 83 } 84 }