143 lines
4.6 KiB
Java
143 lines
4.6 KiB
Java
/*
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* Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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/*
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*/
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import java.nio.charset.Charset;
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import java.nio.charset.CharsetDecoder;
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import java.nio.charset.CharsetEncoder;
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import java.nio.charset.CoderResult;
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import java.nio.ByteBuffer;
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import java.nio.CharBuffer;
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import sun.nio.cs.HistoricallyNamedCharset;
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public class PCK_OLD
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extends Charset
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implements HistoricallyNamedCharset
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{
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public PCK_OLD() {
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super("x-PCK_OLD", null);
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}
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public String historicalName() {
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return "PCK";
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}
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public boolean contains(Charset cs) {
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return ((cs.name().equals("US-ASCII"))
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|| (cs instanceof JIS_X_0201_OLD)
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|| (cs instanceof PCK_OLD));
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}
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public CharsetDecoder newDecoder() {
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return new Decoder(this);
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}
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public CharsetEncoder newEncoder() {
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// Need to force the replacement byte to 0x3f
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// because JIS_X_0208_Encoder defines its own
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// alternative 2 byte substitution to permit it
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// to exist as a self-standing Encoder
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byte[] replacementBytes = { (byte)0x3f };
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return new Encoder(this).replaceWith(replacementBytes);
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}
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private static class Decoder extends SJIS_OLD.Decoder {
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JIS_X_0208_Solaris_Decoder jis0208;
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private static final char REPLACE_CHAR='\uFFFD';
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private Decoder(Charset cs) {
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super(cs);
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jis0208 = new JIS_X_0208_Solaris_Decoder(cs);
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}
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protected char decodeDouble(int c1, int c2) {
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char outChar;
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if ((outChar = super.decodeDouble(c1, c2)) != '\uFFFD') {
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// Map JIS X 0208:1983 0x213D <--> U+2015
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return ((outChar != '\u2014')? outChar: '\u2015');
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} else {
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int adjust = c2 < 0x9F ? 1 : 0;
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int rowOffset = c1 < 0xA0 ? 0x70 : 0xB0;
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int cellOffset = (adjust == 1) ? (c2 > 0x7F ? 0x20 : 0x1F) : 0x7E;
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int b1 = ((c1 - rowOffset) << 1) - adjust;
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int b2 = c2 - cellOffset;
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char outChar2 = jis0208.decodeDouble(b1, b2);
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return outChar2;
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}
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}
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}
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private static class Encoder extends SJIS_OLD.Encoder {
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private JIS_X_0201_OLD.Encoder jis0201;
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private static final short[] j0208Index1 =
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JIS_X_0208_Solaris_Encoder.getIndex1();
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private static final String[] j0208Index2 =
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JIS_X_0208_Solaris_Encoder.getIndex2();
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private Encoder(Charset cs) {
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super(cs);
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jis0201 = new JIS_X_0201_OLD.Encoder(cs);
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}
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protected int encodeDouble(char ch) {
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int result = 0;
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// PCK uses JIS_X_0208:1983 rather than JIS_X_0208:1997
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switch (ch) {
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case '\u2015':
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return 0x815C;
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case '\u2014':
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return 0;
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default:
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break;
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}
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if ((result = super.encodeDouble(ch)) != 0) {
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return result;
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}
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else {
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int offset = j0208Index1[ch >> 8] << 8;
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int pos = j0208Index2[offset >> 12].charAt((offset & 0xfff) + (ch & 0xff));
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if (pos != 0) {
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int c1 = (pos >> 8) & 0xff;
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int c2 = pos & 0xff;
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int rowOffset = c1 < 0x5F ? 0x70 : 0xB0;
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int cellOffset = (c1 % 2 == 1) ? (c2 > 0x5F ? 0x20 : 0x1F) : 0x7E;
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result = ((((c1 + 1 ) >> 1) + rowOffset) << 8) | (c2 + cellOffset);
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}
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}
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return result;
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}
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}
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}
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