--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/sun/io/CharToByteGB18030.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,261 @@
+/*
+ * Copyright 2001-2003 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.io;
+import sun.nio.cs.ext.GB18030;
+
+public class CharToByteGB18030 extends CharToByteConverter
+{
+
+ private char highHalfZoneCode;
+ boolean flushed = true;
+
+ private final static int GB18030_SINGLE_BYTE = 1;
+ private final static int GB18030_DOUBLE_BYTE = 2;
+ private final static int GB18030_FOUR_BYTE = 3;
+ private static short[] index1;
+ private static String[] index2;
+ private int currentState;
+
+ public CharToByteGB18030() {
+ GB18030 nioCoder = new GB18030();
+ currentState = GB18030_DOUBLE_BYTE;
+ subBytes = new byte[1];
+ subBytes[0] = (byte)'?';
+ index1 = nioCoder.getEncoderIndex1();
+ index2 = nioCoder.getEncoderIndex2();
+ }
+
+ public int flush(byte[] output, int outStart, int outEnd)
+ throws MalformedInputException
+ {
+ if (highHalfZoneCode != 0) {
+ highHalfZoneCode = 0;
+ badInputLength = 0;
+ throw new MalformedInputException();
+ }
+ reset();
+ flushed = true;
+ return 0;
+ }
+
+ public void reset() {
+ byteOff = charOff = 0;
+ currentState = GB18030_DOUBLE_BYTE;
+ }
+
+ public boolean canConvert(char c) {
+ // converts all but unpaired surrogates
+ // and illegal chars, U+FFFE & U+FFFF
+
+ if ((c >= 0xd800 && c <=0xdfff) || (c >= 0xfffe))
+ return false;
+ else
+ return true;
+ }
+
+ /**
+ * Character conversion
+ */
+ public int convert(char[] input, int inOff, int inEnd,
+ byte[] output, int outOff, int outEnd)
+ throws UnknownCharacterException, MalformedInputException,
+ ConversionBufferFullException
+ {
+ int linearDiffValue = 0;
+ int hiByte = 0 , loByte = 0; // low and high order bytes
+ char inputChar; // Input character to be converted
+ charOff = inOff;
+ byteOff = outOff;
+ int inputSize; // Size of the input
+ int outputSize; // Size of the output
+
+ flushed = false;
+
+ if (highHalfZoneCode != 0) {
+ if (input[inOff] >= 0xDC00 && input[inOff] <= 0xDFFF) {
+
+ // This is legal UTF16 sequence, so shunt in the high
+ // surrogate for conversion by convert() loop.
+
+ char[] newBuf = new char[inEnd - inOff + 1];
+ newBuf[0] = highHalfZoneCode;
+ System.arraycopy(input, inOff, newBuf, 1, inEnd - inOff);
+ charOff -= 1;
+ input = newBuf;
+ inOff = 0;
+ inEnd = newBuf.length;
+ highHalfZoneCode = 0;
+ } else {
+ // This is illegal UTF16 sequence.
+ badInputLength = 0;
+ throw new MalformedInputException();
+ }
+ }
+
+ // Main encode loop
+
+ while (charOff < inEnd) {
+ inputChar = input[charOff++];
+
+ if(inputChar >= '\uD800' && inputChar <= '\uDBFF') {
+ // Is this the last character of the input?
+ if (charOff + 1 > inEnd) {
+ highHalfZoneCode = inputChar;
+ break;
+ }
+
+ char previousChar = inputChar;
+ inputChar = input[charOff];
+
+ // Is there a low surrogate following?
+ if (inputChar >= '\uDC00' && inputChar <= '\uDFFF') {
+ inputSize = 2;
+ charOff++;
+ linearDiffValue = ( previousChar - 0xD800) * 0x400 +
+ ( inputChar - 0xDC00) + 0x2E248;
+
+ currentState = GB18030_FOUR_BYTE;
+ } else {
+ // We have a malformed surrogate pair
+ badInputLength = 1;
+ throw new MalformedInputException();
+ }
+ }
+ // Is this an unaccompanied low surrogate?
+ else if (inputChar >= '\uDC00' && inputChar <= '\uDFFF') {
+ badInputLength = 1;
+ throw new MalformedInputException();
+ }
+
+ // Not part of a surrogate
+ else if (inputChar >= 0x0000 && inputChar <= 0x007F) {
+ if (byteOff >= outEnd) {
+ throw new ConversionBufferFullException();
+ }
+ currentState = GB18030_SINGLE_BYTE;
+ output[byteOff++] = (byte) inputChar;
+ }
+ else if (inputChar <= 0xA4C6 || inputChar >= 0xE000) {
+ int outByteVal = getGB18030(index1, index2, inputChar);
+
+ if (outByteVal == 0xFFFD ) {
+ if (subMode) {
+ if (byteOff >= outEnd) {
+ throw new ConversionBufferFullException();
+ } else {
+ output[byteOff++] = subBytes[0];
+ continue;
+ }
+ } else {
+ badInputLength = 1;
+ throw new UnknownCharacterException();
+ }
+ }
+
+ hiByte = (outByteVal & 0xFF00) >> 8;
+ loByte = (outByteVal & 0xFF);
+
+ linearDiffValue = (hiByte - 0x20) * 256 + loByte;
+
+ if (inputChar >= 0xE000 && inputChar < 0xF900)
+ linearDiffValue += 0x82BD;
+ else if (inputChar >= 0xF900)
+ linearDiffValue += 0x93A9;
+
+ if (hiByte > 0x80)
+ currentState = GB18030_DOUBLE_BYTE;
+ else
+ currentState = GB18030_FOUR_BYTE;
+ }
+ else if (inputChar >= 0xA4C7 && inputChar <= 0xD7FF) {
+ linearDiffValue = inputChar - 0x5543;
+ currentState = GB18030_FOUR_BYTE;
+ }
+ else {
+ badInputLength = 1;
+ throw new MalformedInputException();
+ }
+
+ if (currentState == GB18030_SINGLE_BYTE)
+ continue;
+
+ if (currentState == GB18030_DOUBLE_BYTE) {
+ if (byteOff + 2 > outEnd) {
+ throw new ConversionBufferFullException();
+ }
+ output[byteOff++] = (byte)hiByte;
+ output[byteOff++] = (byte)loByte;
+ }
+ else { // Four Byte encoding
+ if (byteOff + 4 > outEnd) {
+ throw new ConversionBufferFullException();
+ }
+
+ byte b1, b2, b3, b4;
+
+ b4 = (byte)((linearDiffValue % 10) + 0x30);
+ linearDiffValue /= 10;
+ b3 = (byte)((linearDiffValue % 126) + 0x81);
+ linearDiffValue /= 126;
+ b2 = (byte)((linearDiffValue % 10) + 0x30);
+ b1 = (byte)((linearDiffValue / 10) + 0x81);
+ output[byteOff++] = b1;
+ output[byteOff++] = b2;
+ output[byteOff++] = b3;
+ output[byteOff++] = b4;
+ }
+ }
+ // Return number of bytes written to the output buffer.
+ return byteOff - outOff;
+ }
+
+
+ /**
+ * returns the maximum number of bytes needed to convert a char
+ */
+ public int getMaxBytesPerChar() {
+ return 4;
+ }
+
+
+ /**
+ * Return the character set ID
+ */
+ public String getCharacterEncoding() {
+ return "GB18030";
+ }
+
+ private int getGB18030(short[] outerIndex, String[] innerIndex, char ch) {
+ int offset = outerIndex[((ch & 0xff00) >> 8 )] << 8;
+
+ return innerIndex[offset >> 12].charAt((offset & 0xfff) + (ch & 0xff));
+ }
+
+}