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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.ByteBuffer;
import java.nio.CharBuffer;
import java.nio.charset.Charset;
import java.nio.charset.CharsetDecoder;
import java.nio.charset.CharsetEncoder;
import java.nio.charset.CoderResult;
import sun.nio.cs.HistoricallyNamedCharset;
import sun.nio.cs.Surrogate;
public class EUC_JP_Open
extends Charset
implements HistoricallyNamedCharset
{
public EUC_JP_Open() {
super("x-eucJP-Open", ExtendedCharsets.aliasesFor("x-eucJP-Open"));
}
public String historicalName() {
return "EUC_JP_Solaris";
}
public boolean contains(Charset cs) {
return ((cs.name().equals("US-ASCII"))
|| (cs instanceof JIS_X_0201)
|| (cs instanceof EUC_JP));
}
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 EUC_JP.Decoder {
JIS_X_0201.Decoder decoderJ0201;
JIS_X_0212_Solaris_Decoder decodeMappingJ0212;
JIS_X_0208_Solaris_Decoder decodeMappingJ0208;
short[] j0208Index1;
String[] j0208Index2;
protected final char REPLACE_CHAR='\uFFFD';
private Decoder(Charset cs) {
super(cs);
decoderJ0201 = new JIS_X_0201.Decoder(cs);
decodeMappingJ0212 = new JIS_X_0212_Solaris_Decoder(cs);
decodeMappingJ0208 = new JIS_X_0208_Solaris_Decoder(cs);
decodeMappingJ0208.start = 0xa1;
decodeMappingJ0208.end = 0xfe;
j0208Index1 = decodeMappingJ0208.getIndex1();
j0208Index2 = decodeMappingJ0208.getIndex2();
}
protected char decode0212(int byte1, int byte2) {
return decodeMappingJ0212.decodeDouble(byte1, byte2);
}
protected char decodeDouble(int byte1, int byte2) {
if (byte1 == 0x8e) {
return decoderJ0201.decode(byte2 - 256);
}
if (((byte1 < 0)
|| (byte1 > decodeMappingJ0208.getIndex1().length))
|| ((byte2 < decodeMappingJ0208.start)
|| (byte2 > decodeMappingJ0208.end)))
return REPLACE_CHAR;
char result = super.decodeDouble(byte1, byte2);
if (result != '\uFFFD') {
return result;
} else {
int n = (j0208Index1[byte1 - 0x80] & 0xf) *
(decodeMappingJ0208.end - decodeMappingJ0208.start + 1)
+ (byte2 - decodeMappingJ0208.start);
return j0208Index2[j0208Index1[byte1 - 0x80] >> 4].charAt(n);
}
}
}
private static class Encoder extends EUC_JP.Encoder {
JIS_X_0201.Encoder encoderJ0201;
JIS_X_0212_Solaris_Encoder encoderJ0212;
JIS_X_0208_Solaris_Encoder encoderJ0208;
short[] j0208Index1;
String[] j0208Index2;
private final Surrogate.Parser sgp = new Surrogate.Parser();
private Encoder(Charset cs) {
super(cs);
encoderJ0201 = new JIS_X_0201.Encoder(cs);
encoderJ0212 = new JIS_X_0212_Solaris_Encoder(cs);
encoderJ0208 = new JIS_X_0208_Solaris_Encoder(cs);
j0208Index1 = encoderJ0208.getIndex1();
j0208Index2 = encoderJ0208.getIndex2();
}
protected int encodeSingle(char inputChar, byte[] outputByte) {
byte b;
if (inputChar == 0) {
outputByte[0] = (byte)0;
return 1;
}
if ((b = encoderJ0201.encode(inputChar)) == 0)
return 0;
if (b > 0 && b < 128) {
outputByte[0] = b;
return 1;
}
outputByte[0] = (byte)0x8e;
outputByte[1] = b;
return 2;
}
protected int encodeDouble(char ch) {
int r = super.encodeDouble(ch);
if (r != 0) {
return r;
}
else {
int offset = j0208Index1[((ch & 0xff00) >> 8 )] << 8;
r = j0208Index2[offset >> 12].charAt((offset & 0xfff) +
(ch & 0xFF));
if (r > 0x7500)
return 0x8F8080 + encoderJ0212.encodeDouble(ch);
}
return (r==0 ? 0: r + 0x8080);
}
}
}
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