--- a/jdk/src/share/classes/sun/io/ByteToCharUnicode.java Mon Aug 29 14:27:21 2011 -0700
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,220 +0,0 @@
-/*
- * Copyright (c) 1996, 1999, 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 java.io.*;
-
-
-/**
- * Convert byte arrays containing Unicode characters into arrays of actual
- * Unicode characters. This class may be used directly, in which case it
- * expects the input byte array to begin with a byte-order mark, or it may be
- * subclassed in order to preset the byte order and mark behavior.
- *
- * <p> Whether or not a mark is expected, if a mark that does not match the
- * established byte order is later discovered then a
- * <tt>MalformedInputException</tt> will be thrown by the <tt>convert</tt>
- * method. If a correct mark is seen later in the input stream, it is passed
- * through as a character.
- *
- * @see ByteToCharUnicodeLittle
- * @see ByteToCharUnicodeLittleUnmarked
- * @see ByteToCharUnicodeBig
- * @see ByteToCharUnicodeBigUnmarked
- *
- * @author Mark Reinhold
- */
-
-public class ByteToCharUnicode extends ByteToCharConverter {
-
- static final char BYTE_ORDER_MARK = (char) 0xfeff;
- static final char REVERSED_MARK = (char) 0xfffe;
-
- static final int AUTO = 0;
- static final int BIG = 1;
- static final int LITTLE = 2;
-
- int originalByteOrder; /* Byte order specified at creation */
- int byteOrder; /* Byte order in use */
- boolean usesMark; /* Look for a mark and interpret it */
-
- /**
- * Creates a Unicode byte-to-char converter that expects the first pair of
- * input bytes to be a byte-order mark, which will be interpreted and
- * discarded. If the first pair of bytes is not such a mark then a
- * <tt>MalformedInputException</tt> will be thrown by the convert method.
- */
- public ByteToCharUnicode() {
- originalByteOrder = byteOrder = AUTO;
- usesMark = true;
- }
-
- /**
- * Creates a Unicode byte-to-char converter that uses the given byte order
- * and may or may not insist upon an initial byte-order mark.
- */
- protected ByteToCharUnicode(int bo, boolean m) {
- originalByteOrder = byteOrder = bo;
- usesMark = m;
- }
-
- public String getCharacterEncoding() {
- switch (originalByteOrder) {
- case BIG:
- return usesMark ? "UnicodeBig" : "UnicodeBigUnmarked";
- case LITTLE:
- return usesMark ? "UnicodeLittle" : "UnicodeLittleUnmarked";
- default:
- return "Unicode";
- }
- }
-
- boolean started = false;
- int leftOverByte;
- boolean leftOver = false;
-
- public int convert(byte[] in, int inOff, int inEnd,
- char[] out, int outOff, int outEnd)
- throws ConversionBufferFullException, MalformedInputException
- {
- byteOff = inOff;
- charOff = outOff;
-
- if (inOff >= inEnd)
- return 0;
-
- int b1, b2;
- int bc = 0;
- int inI = inOff, outI = outOff;
-
- if (leftOver) {
- b1 = leftOverByte & 0xff;
- leftOver = false;
- }
- else {
- b1 = in[inI++] & 0xff;
- }
- bc = 1;
-
- if (usesMark && !started) { /* Read initial byte-order mark */
- if (inI < inEnd) {
- b2 = in[inI++] & 0xff;
- bc = 2;
-
- char c = (char) ((b1 << 8) | b2);
- int bo = AUTO;
-
- if (c == BYTE_ORDER_MARK)
- bo = BIG;
- else if (c == REVERSED_MARK)
- bo = LITTLE;
-
- if (byteOrder == AUTO) {
- if (bo == AUTO) {
- badInputLength = bc;
- throw new
- MalformedInputException("Missing byte-order mark");
- }
- byteOrder = bo;
- if (inI < inEnd) {
- b1 = in[inI++] & 0xff;
- bc = 1;
- }
- }
- else if (bo == AUTO) {
- inI--;
- bc = 1;
- }
- else if (byteOrder == bo) {
- if (inI < inEnd) {
- b1 = in[inI++] & 0xff;
- bc = 1;
- }
- }
- else {
- badInputLength = bc;
- throw new
- MalformedInputException("Incorrect byte-order mark");
- }
-
- started = true;
- }
- }
-
- /* Loop invariant: (b1 contains the next input byte) && (bc == 1) */
- while (inI < inEnd) {
- b2 = in[inI++] & 0xff;
- bc = 2;
-
- char c;
- if (byteOrder == BIG)
- c = (char) ((b1 << 8) | b2);
- else
- c = (char) ((b2 << 8) | b1);
-
- if (c == REVERSED_MARK)
- throw new
- MalformedInputException("Reversed byte-order mark");
-
- if (outI >= outEnd)
- throw new ConversionBufferFullException();
- out[outI++] = c;
- byteOff = inI;
- charOff = outI;
-
- if (inI < inEnd) {
- b1 = in[inI++] & 0xff;
- bc = 1;
- }
- }
-
- if (bc == 1) {
- leftOverByte = b1;
- byteOff = inI;
- leftOver = true;
- }
-
- return outI - outOff;
- }
-
- public void reset() {
- leftOver = false;
- byteOff = charOff = 0;
- started = false;
- byteOrder = originalByteOrder;
- }
-
- public int flush(char buf[], int off, int len)
- throws MalformedInputException
- {
- if (leftOver) {
- reset();
- throw new MalformedInputException();
- }
- byteOff = charOff = 0;
- return 0;
- }
-
-}