/* * Copyright (c) 1997, 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.io;import sun.nio.cs.ext.DoubleByte;import static sun.nio.cs.CharsetMapping.*;public abstract class ByteToCharDBCS_ASCII extends ByteToCharConverter{ private boolean savedBytePresent; private int savedByte; private DoubleByte.Decoder dec; public ByteToCharDBCS_ASCII(DoubleByte.Decoder dec) { super(); savedBytePresent = false; this.dec = dec; } char decodeSingle(int b) { return dec.decodeSingle(b); } char decodeDouble(int b1, int b2) { return dec.decodeDouble(b1, b2); } public int flush(char [] output, int outStart, int outEnd) throws MalformedInputException { if (savedBytePresent) { reset(); badInputLength = 0; throw new MalformedInputException(); } reset(); return 0; } /** * Character conversion */ public int convert(byte[] input, int inOff, int inEnd, char[] output, int outOff, int outEnd) throws UnknownCharacterException, MalformedInputException, ConversionBufferFullException { int inputSize; char outputChar = UNMAPPABLE_DECODING; charOff = outOff; byteOff = inOff; while(byteOff < inEnd) { int byte1; if (!savedBytePresent) { byte1 = input[byteOff] & 0xff; inputSize = 1; } else { byte1 = savedByte; savedBytePresent = false; inputSize = 0; } outputChar = decodeSingle(byte1); if (outputChar == UNMAPPABLE_DECODING) { if (byteOff + inputSize >= inEnd) { savedByte = byte1; savedBytePresent = true; byteOff += inputSize; break; } outputChar = decodeDouble(byte1, input[byteOff+inputSize] & 0xff); inputSize++; } if (outputChar == UNMAPPABLE_DECODING) { if (subMode) outputChar = subChars[0]; else { badInputLength = inputSize; throw new UnknownCharacterException(); } } if (charOff >= outEnd) throw new ConversionBufferFullException(); output[charOff++] = outputChar; byteOff += inputSize; } return charOff - outOff; } /** * Resets the converter. */ public void reset() { charOff = byteOff = 0; savedBytePresent = false; }}
/*
* Copyright (c) 1997, 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.io;
import sun.nio.cs.ext.DoubleByte;
import static sun.nio.cs.CharsetMapping.*;
public abstract class ByteToCharDBCS_ASCII extends ByteToCharConverter
{
private boolean savedBytePresent;
private int savedByte;
private DoubleByte.Decoder dec;
public ByteToCharDBCS_ASCII(DoubleByte.Decoder dec) {
super();
savedBytePresent = false;
this.dec = dec;
}
char decodeSingle(int b) {
return dec.decodeSingle(b);
}
char decodeDouble(int b1, int b2) {
return dec.decodeDouble(b1, b2);
}
public int flush(char [] output, int outStart, int outEnd)
throws MalformedInputException
{
if (savedBytePresent) {
reset();
badInputLength = 0;
throw new MalformedInputException();
}
reset();
return 0;
}
/**
* Character conversion
*/
public int convert(byte[] input, int inOff, int inEnd,
char[] output, int outOff, int outEnd)
throws UnknownCharacterException, MalformedInputException,
ConversionBufferFullException
{
int inputSize;
char outputChar = UNMAPPABLE_DECODING;
charOff = outOff;
byteOff = inOff;
while(byteOff < inEnd)
{
int byte1;
if (!savedBytePresent) {
byte1 = input[byteOff] & 0xff;
inputSize = 1;
} else {
byte1 = savedByte;
savedBytePresent = false;
inputSize = 0;
}
outputChar = decodeSingle(byte1);
if (outputChar == UNMAPPABLE_DECODING) {
if (byteOff + inputSize >= inEnd) {
savedByte = byte1;
savedBytePresent = true;
byteOff += inputSize;
break;
}
outputChar = decodeDouble(byte1, input[byteOff+inputSize] & 0xff);
inputSize++;
}
if (outputChar == UNMAPPABLE_DECODING) {
if (subMode)
outputChar = subChars[0];
else {
badInputLength = inputSize;
throw new UnknownCharacterException();
}
}
if (charOff >= outEnd)
throw new ConversionBufferFullException();
output[charOff++] = outputChar;
byteOff += inputSize;
}
return charOff - outOff;
}
/**
* Resets the converter.
*/
public void reset() {
charOff = byteOff = 0;
savedBytePresent = false;
}
}