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/*
* Copyright (c) 2003, 2004, Oracle and/or its affiliates. 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
*/
package sun.nio.cs.ext;
import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;
import java.nio.charset.CharsetEncoder;
import java.nio.charset.CoderResult;
import java.nio.ByteBuffer;
import java.nio.CharBuffer;
import sun.nio.cs.HistoricallyNamedCharset;
public class PCK
extends Charset
implements HistoricallyNamedCharset
{
public PCK() {
super("x-PCK", ExtendedCharsets.aliasesFor("x-PCK"));
}
public String historicalName() {
return "PCK";
}
public boolean contains(Charset cs) {
return ((cs.name().equals("US-ASCII"))
|| (cs instanceof JIS_X_0201)
|| (cs instanceof PCK));
}
public CharsetDecoder newDecoder() {
return new Decoder(this);
}
public CharsetEncoder newEncoder() {
// Need to force the replacement byte to 0x3f
// because JIS_X_0208_Encoder defines its own
// alternative 2 byte substitution to permit it
// to exist as a self-standing Encoder
byte[] replacementBytes = { (byte)0x3f };
return new Encoder(this).replaceWith(replacementBytes);
}
private static class Decoder extends SJIS.Decoder {
JIS_X_0208_Solaris_Decoder jis0208;
private static final char REPLACE_CHAR='\uFFFD';
private Decoder(Charset cs) {
super(cs);
jis0208 = new JIS_X_0208_Solaris_Decoder(cs);
}
protected char decodeDouble(int c1, int c2) {
char outChar;
if ((outChar = super.decodeDouble(c1, c2)) != '\uFFFD') {
// Map JIS X 0208:1983 0x213D <--> U+2015
return ((outChar != '\u2014')? outChar: '\u2015');
} else {
int adjust = c2 < 0x9F ? 1 : 0;
int rowOffset = c1 < 0xA0 ? 0x70 : 0xB0;
int cellOffset = (adjust == 1) ? (c2 > 0x7F ? 0x20 : 0x1F) : 0x7E;
int b1 = ((c1 - rowOffset) << 1) - adjust;
int b2 = c2 - cellOffset;
char outChar2 = jis0208.decodeDouble(b1, b2);
return outChar2;
}
}
}
private static class Encoder extends SJIS.Encoder {
private JIS_X_0201.Encoder jis0201;
private JIS_X_0208_Solaris_Encoder jis0208;
short[] j0208Index1;
String[] j0208Index2;
private Encoder(Charset cs) {
super(cs);
jis0201 = new JIS_X_0201.Encoder(cs);
jis0208 = new JIS_X_0208_Solaris_Encoder(cs);
j0208Index1 = jis0208.getIndex1();
j0208Index2 = jis0208.getIndex2();
}
protected int encodeDouble(char ch) {
int result = 0;
// PCK uses JIS_X_0208:1983 rather than JIS_X_0208:1997
switch (ch) {
case '\u2015':
return (int)0x815C;
case '\u2014':
return 0;
default:
break;
}
if ((result = super.encodeDouble(ch)) != 0) {
return result;
}
else {
int offset = j0208Index1[ch >> 8] << 8;
int pos = j0208Index2[offset >> 12].charAt((offset & 0xfff) + (ch & 0xff));
if (pos != 0) {
int c1 = (pos >> 8) & 0xff;
int c2 = pos & 0xff;
int rowOffset = c1 < 0x5F ? 0x70 : 0xB0;
int cellOffset = (c1 % 2 == 1) ? (c2 > 0x5F ? 0x20 : 0x1F) : 0x7E;
result = ((((c1 + 1 ) >> 1) + rowOffset) << 8) | (c2 + cellOffset);
}
}
return result;
}
}
}
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