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 static sun.nio.cs.CharsetMapping.*; 32 33 public class MS932_0213 extends Charset { 34 public MS932_0213() { 35 super("x-MS932_0213", ExtendedCharsets.aliasesFor("MS932_0213")); 36 } 37 38 public boolean contains(Charset cs) { 39 return ((cs.name().equals("US-ASCII")) 40 || (cs instanceof MS932) 41 || (cs instanceof MS932_0213)); 42 } 43 44 public CharsetDecoder newDecoder() { 45 return new Decoder(this); 46 } 47 48 public CharsetEncoder newEncoder() { 49 return new Encoder(this); 50 } 51 52 protected static class Decoder extends SJIS_0213.Decoder { 53 static DoubleByte.Decoder decMS932 = 54 (DoubleByte.Decoder)new MS932().newDecoder(); 55 protected Decoder(Charset cs) { 56 super(cs); 57 } 58 59 protected char decodeDouble(int b1, int b2) { 60 char c = decMS932.decodeDouble(b1, b2); 61 if (c == UNMAPPABLE_DECODING) 62 return super.decodeDouble(b1, b2); 63 return c; 64 } 65 } 66 67 protected static class Encoder extends SJIS_0213.Encoder { 68 // we only use its encodeChar() method 69 static DoubleByte.Encoder encMS932 = 70 (DoubleByte.Encoder)new MS932().newEncoder(); 71 protected Encoder(Charset cs) { 72 super(cs); 73 } 74 75 protected int encodeChar(char ch) { 76 int db = encMS932.encodeChar(ch); 77 if (db == UNMAPPABLE_ENCODING) 78 return super.encodeChar(ch); 79 return db; 80 } 81 } 82 }