| |
| /* |
| * Copyright 2006 Sun Microsystems, Inc. All Rights Reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. Sun designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Sun in the LICENSE file that accompanied this code. |
| * |
| * This code 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 |
| * version 2 for more details (a copy is included in the LICENSE file that |
| * accompanied this code). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| */ |
| |
| /* |
| */ |
| |
| package sun.nio.cs.ext; |
| |
| import java.nio.ByteBuffer; |
| import java.nio.charset.Charset; |
| import java.nio.charset.CharsetDecoder; |
| import java.nio.charset.CharsetEncoder; |
| import java.nio.charset.CoderResult; |
| |
| // EBCDIC DBCS-only Korean |
| public class IBM834 |
| extends Charset |
| { |
| public IBM834() { |
| super("x-IBM834", ExtendedCharsets.aliasesFor("x-IBM834")); |
| } |
| |
| public boolean contains(Charset cs) { |
| return (cs instanceof IBM834); |
| } |
| |
| public CharsetDecoder newDecoder() { |
| return new Decoder(this); |
| } |
| |
| public CharsetEncoder newEncoder() { |
| return new Encoder(this); |
| } |
| |
| protected static class Decoder extends DBCS_ONLY_IBM_EBCDIC_Decoder { |
| public Decoder(Charset cs) { |
| super(cs); |
| super.mask1 = 0xFFF0; |
| super.mask2 = 0x000F; |
| super.shift = 4; |
| super.index1 = IBM933.getDecoderIndex1(); |
| super.index2 = IBM933.getDecoderIndex2(); |
| } |
| } |
| |
| protected static class Encoder extends IBM933.Encoder { |
| public Encoder(Charset cs) { |
| super(cs, new byte[] {(byte)0xfe, (byte)0xfe}, false); |
| } |
| |
| protected CoderResult implFlush(ByteBuffer out) { |
| implReset(); |
| return CoderResult.UNDERFLOW; |
| } |
| |
| protected byte[] encodeHangul(char ch) { |
| byte[] bytes = super.encodeHangul(ch); |
| if (bytes.length == 0) { |
| // Cp834 has 6 additional non-roundtrip char->bytes |
| // mappings, see#6379808 |
| if (ch == '\u00b7') { |
| return new byte[] {(byte)0x41, (byte)0x43 }; |
| } else if (ch == '\u00ad') { |
| return new byte[] {(byte)0x41, (byte)0x48 }; |
| } else if (ch == '\u2015') { |
| return new byte[] {(byte)0x41, (byte)0x49 }; |
| } else if (ch == '\u223c') { |
| return new byte[] {(byte)0x42, (byte)0xa1 }; |
| } else if (ch == '\uff5e') { |
| return new byte[] {(byte)0x49, (byte)0x54 }; |
| } else if (ch == '\u2299') { |
| return new byte[] {(byte)0x49, (byte)0x6f }; |
| } |
| } else if (bytes[0] == 0) { |
| return EMPTYBA; |
| } |
| return bytes; |
| } |
| |
| public boolean canEncode(char ch) { |
| return encodeHangul(ch).length != 0; |
| } |
| |
| public boolean isLegalReplacement(byte[] repl) { |
| if (repl.length == 2 && |
| repl[0] == (byte)0xfe && repl[1] == (byte)0xfe) |
| return true; |
| return super.isLegalReplacement(repl); |
| } |
| |
| } |
| } |