Thread: [Jnode-svn-commits] SF.net SVN: jnode: [2896] trunk/core/src/classpath/java/java

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Revision: 2896
          http://jnode.svn.sourceforge.net/jnode/?rev=2896&view=rev
Author:   lsantha
Date:     2006-12-12 13:09:56 -0800 (Tue, 12 Dec 2006)

Log Message:
-----------
Migrating to Java 5 level classpath.

Added Paths:
-----------
    trunk/core/src/classpath/java/java/io/
    trunk/core/src/classpath/java/java/io/BufferedInputStream.java
    trunk/core/src/classpath/java/java/io/BufferedOutputStream.java
    trunk/core/src/classpath/java/java/io/BufferedReader.java
    trunk/core/src/classpath/java/java/io/BufferedWriter.java
    trunk/core/src/classpath/java/java/io/ByteArrayInputStream.java
    trunk/core/src/classpath/java/java/io/ByteArrayOutputStream.java
    trunk/core/src/classpath/java/java/io/CharArrayReader.java
    trunk/core/src/classpath/java/java/io/CharArrayWriter.java
    trunk/core/src/classpath/java/java/io/CharConversionException.java
    trunk/core/src/classpath/java/java/io/Closeable.java
    trunk/core/src/classpath/java/java/io/DataInput.java
    trunk/core/src/classpath/java/java/io/DataInputStream.java
    trunk/core/src/classpath/java/java/io/DataOutput.java
    trunk/core/src/classpath/java/java/io/DataOutputStream.java
    trunk/core/src/classpath/java/java/io/DeleteFileHelper.java
    trunk/core/src/classpath/java/java/io/EOFException.java
    trunk/core/src/classpath/java/java/io/Externalizable.java
    trunk/core/src/classpath/java/java/io/File.java
    trunk/core/src/classpath/java/java/io/FileDescriptor.java
    trunk/core/src/classpath/java/java/io/FileFilter.java
    trunk/core/src/classpath/java/java/io/FileInputStream.java
    trunk/core/src/classpath/java/java/io/FileNotFoundException.java
    trunk/core/src/classpath/java/java/io/FileOutputStream.java
    trunk/core/src/classpath/java/java/io/FilePermission.java
    trunk/core/src/classpath/java/java/io/FileReader.java
    trunk/core/src/classpath/java/java/io/FileWriter.java
    trunk/core/src/classpath/java/java/io/FilenameFilter.java
    trunk/core/src/classpath/java/java/io/FilterInputStream.java
    trunk/core/src/classpath/java/java/io/FilterOutputStream.java
    trunk/core/src/classpath/java/java/io/FilterReader.java
    trunk/core/src/classpath/java/java/io/FilterWriter.java
    trunk/core/src/classpath/java/java/io/Flushable.java
    trunk/core/src/classpath/java/java/io/IOException.java
    trunk/core/src/classpath/java/java/io/InputStream.java
    trunk/core/src/classpath/java/java/io/InputStreamReader.java
    trunk/core/src/classpath/java/java/io/InterruptedIOException.java
    trunk/core/src/classpath/java/java/io/InvalidClassException.java
    trunk/core/src/classpath/java/java/io/InvalidObjectException.java
    trunk/core/src/classpath/java/java/io/LineNumberInputStream.java
    trunk/core/src/classpath/java/java/io/LineNumberReader.java
    trunk/core/src/classpath/java/java/io/NotActiveException.java
    trunk/core/src/classpath/java/java/io/NotSerializableException.java
    trunk/core/src/classpath/java/java/io/ObjectInput.java
    trunk/core/src/classpath/java/java/io/ObjectInputStream.java
    trunk/core/src/classpath/java/java/io/ObjectInputValidation.java
    trunk/core/src/classpath/java/java/io/ObjectOutput.java
    trunk/core/src/classpath/java/java/io/ObjectOutputStream.java
    trunk/core/src/classpath/java/java/io/ObjectStreamClass.java
    trunk/core/src/classpath/java/java/io/ObjectStreamConstants.java
    trunk/core/src/classpath/java/java/io/ObjectStreamException.java
    trunk/core/src/classpath/java/java/io/ObjectStreamField.java
    trunk/core/src/classpath/java/java/io/OptionalDataException.java
    trunk/core/src/classpath/java/java/io/OutputStream.java
    trunk/core/src/classpath/java/java/io/OutputStreamWriter.java
    trunk/core/src/classpath/java/java/io/PipedInputStream.java
    trunk/core/src/classpath/java/java/io/PipedOutputStream.java
    trunk/core/src/classpath/java/java/io/PipedReader.java
    trunk/core/src/classpath/java/java/io/PipedWriter.java
    trunk/core/src/classpath/java/java/io/PrintStream.java
    trunk/core/src/classpath/java/java/io/PrintWriter.java
    trunk/core/src/classpath/java/java/io/PushbackInputStream.java
    trunk/core/src/classpath/java/java/io/PushbackReader.java
    trunk/core/src/classpath/java/java/io/RandomAccessFile.java
    trunk/core/src/classpath/java/java/io/Reader.java
    trunk/core/src/classpath/java/java/io/SequenceInputStream.java
    trunk/core/src/classpath/java/java/io/Serializable.java
    trunk/core/src/classpath/java/java/io/SerializablePermission.java
    trunk/core/src/classpath/java/java/io/StreamCorruptedException.java
    trunk/core/src/classpath/java/java/io/StreamTokenizer.java
    trunk/core/src/classpath/java/java/io/StringBufferInputStream.java
    trunk/core/src/classpath/java/java/io/StringReader.java
    trunk/core/src/classpath/java/java/io/StringWriter.java
    trunk/core/src/classpath/java/java/io/SyncFailedException.java
    trunk/core/src/classpath/java/java/io/UTFDataFormatException.java
    trunk/core/src/classpath/java/java/io/UnsupportedEncodingException.java
    trunk/core/src/classpath/java/java/io/WriteAbortedException.java
    trunk/core/src/classpath/java/java/io/Writer.java
    trunk/core/src/classpath/java/java/io/class-dependencies.conf
    trunk/core/src/classpath/java/java/io/package.html

Added: trunk/core/src/classpath/java/java/io/BufferedInputStream.java
===================================================================

--- trunk/core/src/classpath/java/java/io/BufferedInputStream.java	                        (rev 0)
+++ trunk/core/src/classpath/java/java/io/BufferedInputStream.java	2006-12-12 21:09:56 UTC (rev 2896)
@@ -0,0 +1,379 @@
+/* BufferedInputStream.java -- An input stream that implements buffering
+   Copyright (C) 1998, 1999, 2001, 2005  Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+ 
+package java.io;
+
+/* Written using "Java Class Libraries", 2nd edition, ISBN 0-201-31002-3
+ * "The Java Language Specification", ISBN 0-201-63451-1
+ * plus online API docs for JDK 1.2 beta from http://www.javasoft.com.
+ * Status:  Believed complete and correct.
+ */
+ 
+/**
+ * This subclass of <code>FilterInputStream</code> buffers input from an 
+ * underlying implementation to provide a possibly more efficient read
+ * mechanism.  It maintains the buffer and buffer state in instance 
+ * variables that are available to subclasses.  The default buffer size
+ * of 2048 bytes can be overridden by the creator of the stream.
+ * <p>
+ * This class also implements mark/reset functionality.  It is capable
+ * of remembering any number of input bytes, to the limits of
+ * system memory or the size of <code>Integer.MAX_VALUE</code>
+ * <p>
+ * Please note that this class does not properly handle character
+ * encodings.  Consider using the <code>BufferedReader</code> class which
+ * does.
+ *
+ * @author Aaron M. Renn (ar...@ur...)
+ * @author Warren Levy (wa...@cy...)
+ * @author Jeroen Frijters (je...@fr...)
+ */
+public class BufferedInputStream extends FilterInputStream
+{
+
+  /**
+   * This is the default buffer size
+   */
+  private static final int DEFAULT_BUFFER_SIZE = 2048;
+
+  /**
+   * The buffer used for storing data from the underlying stream.
+   */
+  protected byte[] buf;
+
+  /**
+   * The number of valid bytes currently in the buffer.  It is also the index
+   * of the buffer position one byte past the end of the valid data.
+   */
+  protected int count;
+
+  /**
+   * The index of the next character that will by read from the buffer.
+   * When <code>pos == count</code>, the buffer is empty.
+   */
+  protected int pos;
+
+  /**
+   * The value of <code>pos</code> when the <code>mark()</code> method was
+   * called.  
+   * This is set to -1 if there is no mark set.
+   */
+  protected int markpos = -1;
+
+  /**
+   * This is the maximum number of bytes than can be read after a 
+   * call to <code>mark()</code> before the mark can be discarded.
+   * After this may bytes are read, the <code>reset()</code> method
+   * may not be called successfully.
+   */
+  protected int marklimit;
+
+  /**
+   * This is the initial buffer size. When the buffer is grown because
+   * of marking requirements, it will be grown by bufferSize increments.
+   * The underlying stream will be read in chunks of bufferSize.
+   */
+  private final int bufferSize;
+
+  /**
+   * This method initializes a new <code>BufferedInputStream</code> that will
+   * read from the specified subordinate stream with a default buffer size
+   * of 2048 bytes
+   *
+   * @param in The subordinate stream to read from
+   */
+  public BufferedInputStream(InputStream in)
+  {
+    this(in, DEFAULT_BUFFER_SIZE);
+  }
+
+  /**
+   * This method initializes a new <code>BufferedInputStream</code> that will
+   * read from the specified subordinate stream with a buffer size that
+   * is specified by the caller.
+   *
+   * @param in The subordinate stream to read from
+   * @param size The buffer size to use
+   *
+   * @exception IllegalArgumentException when size is smaller then 1
+   */
+  public BufferedInputStream(InputStream in, int size)
+  {
+    super(in);
+    if (size <= 0)
+      throw new IllegalArgumentException();
+    buf = new byte[size];
+    // initialize pos & count to bufferSize, to prevent refill from
+    // allocating a new buffer (if the caller starts out by calling mark()).
+    pos = count = bufferSize = size;
+  }
+
+  /**
+   * This method returns the number of bytes that can be read from this
+   * stream before a read can block.  A return of 0 indicates that blocking
+   * might (or might not) occur on the very next read attempt.
+   * <p>
+   * The number of available bytes will be the number of read ahead bytes 
+   * stored in the internal buffer plus the number of available bytes in
+   * the underlying stream.
+   *
+   * @return The number of bytes that can be read before blocking could occur
+   *
+   * @exception IOException If an error occurs
+   */
+  public synchronized int available() throws IOException
+  {
+    return count - pos + super.available();
+  }
+
+  /**
+   * This method closes the underlying input stream and frees any
+   * resources associated with it. Sets <code>buf</code> to <code>null</code>.
+   *
+   * @exception IOException If an error occurs.
+   */
+  public void close() throws IOException
+  {
+    // Free up the array memory.
+    buf = null;
+    pos = count = 0;
+    markpos = -1;
+    super.close();
+  }
+
+  /**
+   * This method marks a position in the input to which the stream can be
+   * "reset" by calling the <code>reset()</code> method.  The parameter
+   * <code>readlimit</code> is the number of bytes that can be read from the 
+   * stream after setting the mark before the mark becomes invalid.  For
+   * example, if <code>mark()</code> is called with a read limit of 10, then
+   * when 11 bytes of data are read from the stream before the
+   * <code>reset()</code> method is called, then the mark is invalid and the
+   * stream object instance is not required to remember the mark.
+   * <p>
+   * Note that the number of bytes that can be remembered by this method
+   * can be greater than the size of the internal read buffer.  It is also
+   * not dependent on the subordinate stream supporting mark/reset
+   * functionality.
+   *
+   * @param readlimit The number of bytes that can be read before the mark
+   * becomes invalid
+   */
+  public synchronized void mark(int readlimit)
+  {
+    marklimit = readlimit;
+    markpos = pos;
+  }
+
+  /**
+   * This method returns <code>true</code> to indicate that this class
+   * supports mark/reset functionality.
+   *
+   * @return <code>true</code> to indicate that mark/reset functionality is
+   * supported
+   *
+   */
+  public boolean markSupported()
+  {
+    return true;
+  }
+
+  /**
+   * This method reads an unsigned byte from the input stream and returns it
+   * as an int in the range of 0-255.  This method also will return -1 if
+   * the end of the stream has been reached.
+   * <p>
+   * This method will block until the byte can be read.
+   *
+   * @return The byte read or -1 if end of stream
+   *
+   * @exception IOException If an error occurs
+   */
+  public synchronized int read() throws IOException
+  {
+    if (pos >= count && !refill())
+      return -1;	// EOF
+
+    return buf[pos++] & 0xFF;
+  }
+
+  /**
+   * This method reads bytes from a stream and stores them into a caller
+   * supplied buffer.  It starts storing the data at index <code>off</code>
+   * into the buffer and attempts to read <code>len</code> bytes.  This method
+   * can return before reading the number of bytes requested, but it will try
+   * to read the requested number of bytes by repeatedly calling the underlying
+   * stream as long as available() for this stream continues to return a
+   * non-zero value (or until the requested number of bytes have been read).
+   * The actual number of bytes read is returned as an int.  A -1 is returned
+   * to indicate the end of the stream.
+   * <p>
+   * This method will block until some data can be read.
+   *
+   * @param b The array into which the bytes read should be stored
+   * @param off The offset into the array to start storing bytes
+   * @param len The requested number of bytes to read
+   *
+   * @return The actual number of bytes read, or -1 if end of stream.
+   *
+   * @exception IOException If an error occurs.
+   * @exception IndexOutOfBoundsException when <code>off</code> or
+   *            <code>len</code> are negative, or when <code>off + len</code>
+   *            is larger then the size of <code>b</code>,
+   */
+  public synchronized int read(byte[] b, int off, int len) throws IOException
+  {
+    if (off < 0 || len < 0 || b.length - off < len)
+      throw new IndexOutOfBoundsException();
+
+    if (len == 0)
+      return 0;
+
+    if (pos >= count && !refill())
+      return -1;		// No bytes were read before EOF.
+
+    int totalBytesRead = Math.min(count - pos, len);
+    System.arraycopy(buf, pos, b, off, totalBytesRead);
+    pos += totalBytesRead;
+    off += totalBytesRead;
+    len -= totalBytesRead;
+
+    while (len > 0 && super.available() > 0 && refill())
+      {
+	int remain = Math.min(count - pos, len);
+	System.arraycopy(buf, pos, b, off, remain);
+	pos += remain;
+	off += remain;
+	len -= remain;
+	totalBytesRead += remain;
+      }
+
+    return totalBytesRead;
+  }
+
+  /**
+   * This method resets a stream to the point where the <code>mark()</code>
+   * method was called.  Any bytes that were read after the mark point was
+   * set will be re-read during subsequent reads.
+   * <p>
+   * This method will throw an IOException if the number of bytes read from
+   * the stream since the call to <code>mark()</code> exceeds the mark limit
+   * passed when establishing the mark.
+   *
+   * @exception IOException If <code>mark()</code> was never called or more
+   *            then <code>marklimit</code> bytes were read since the last
+   *            call to <code>mark()</code>
+   */
+  public synchronized void reset() throws IOException
+  {
+    if (markpos == -1)
+      throw new IOException(buf == null ? "Stream closed." : "Invalid mark.");
+
+    pos = markpos;
+  }
+
+  /**
+   * This method skips the specified number of bytes in the stream.  It
+   * returns the actual number of bytes skipped, which may be less than the
+   * requested amount.
+   *
+   * @param n The requested number of bytes to skip
+   *
+   * @return The actual number of bytes skipped.
+   *
+   * @exception IOException If an error occurs
+   */
+  public synchronized long skip(long n) throws IOException
+  {
+    if (buf == null)
+      throw new IOException("Stream closed.");
+
+    final long origN = n;
+
+    while (n > 0L)
+      {
+	if (pos >= count && !refill())
+          break;
+
+	int numread = (int) Math.min((long) (count - pos), n);
+	pos += numread;
+	n -= numread;
+      }
+
+    return origN - n;
+  }
+
+  /**
+   * Called to refill the buffer (when count is equal to pos).
+   *
+   * @return <code>true</code> when at least one additional byte was read
+   *         into <code>buf</code>, <code>false</code> otherwise (at EOF).
+   */
+  private boolean refill() throws IOException
+  {
+    if (buf == null)
+      throw new IOException("Stream closed.");
+
+    if (markpos == -1 || count - markpos >= marklimit)
+      {
+	markpos = -1;
+	pos = count = 0;
+      }
+    else
+      {
+	byte[] newbuf = buf;
+	if (markpos < bufferSize)
+	  {
+	    newbuf = new byte[count - markpos + bufferSize];
+	  }
+	System.arraycopy(buf, markpos, newbuf, 0, count - markpos);
+	buf = newbuf;
+	count -= markpos;
+	pos -= markpos;
+	markpos = 0;
+      }
+
+    int numread = super.read(buf, count, bufferSize);
+
+    if (numread <= 0)	// EOF
+      return false;
+
+    count += numread;
+    return true;
+  }
+}

Added: trunk/core/src/classpath/java/java/io/BufferedOutputStream.java
===================================================================
--- trunk/core/src/classpath/java/java/io/BufferedOutputStream.java	                        (rev 0)
+++ trunk/core/src/classpath/java/java/io/BufferedOutputStream.java	2006-12-12 21:09:56 UTC (rev 2896)
@@ -0,0 +1,192 @@
+/* BufferedOutputStream.java -- Buffer output into large blocks before writing
+   Copyright (C) 1998, 2000, 2003 Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+ 
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package java.io;
+
+/**
+  * This class accumulates bytes written in a buffer instead of immediately
+  * writing the data to the underlying output sink. The bytes are instead
+  * as one large block when the buffer is filled, or when the stream is
+  * closed or explicitly flushed. This mode operation can provide a more
+  * efficient mechanism for writing versus doing numerous small unbuffered
+  * writes.
+  *
+  * @author Aaron M. Renn (ar...@ur...)
+  */
+public class BufferedOutputStream extends FilterOutputStream
+{
+  /**
+   * This is the default buffer size
+   */
+  private static final int DEFAULT_BUFFER_SIZE = 512;
+
+  /**
+   * This is the internal byte array used for buffering output before
+   * writing it.
+   */
+  protected byte[] buf;
+
+  /**
+   * This is the number of bytes that are currently in the buffer and
+   * are waiting to be written to the underlying stream.  It always points to
+   * the index into the buffer where the next byte of data will be stored
+   */
+  protected int count;
+
+  /**
+   * This method initializes a new <code>BufferedOutputStream</code> instance
+   * that will write to the specified subordinate <code>OutputStream</code>
+   * and which will use a default buffer size of 512 bytes.
+   *
+   * @param out The underlying <code>OutputStream</code> to write data to
+   */
+  public BufferedOutputStream(OutputStream out)
+  {
+    this(out, DEFAULT_BUFFER_SIZE);
+  }
+
+  /**
+   * This method initializes a new <code>BufferedOutputStream</code> instance
+   * that will write to the specified subordinate <code>OutputStream</code>
+   * and which will use the specified buffer size
+   *
+   * @param out The underlying <code>OutputStream</code> to write data to
+   * @param size The size of the internal buffer
+   */
+  public BufferedOutputStream(OutputStream out, int size)
+  {
+    super(out);
+
+    buf = new byte[size];
+  }
+
+  /**
+   * This method causes any currently buffered bytes to be immediately
+   * written to the underlying output stream.
+   *
+   * @exception IOException If an error occurs
+   */
+  public synchronized void flush() throws IOException
+  {
+    if (count == 0)
+      return;
+
+    out.write(buf, 0, count);
+    count = 0;
+    out.flush();
+  }
+
+  /**
+   * This method flushes any remaining buffered bytes then closes the 
+   * underlying output stream.  Any further attempts to write to this stream
+   * may throw an exception
+   *
+  public synchronized void close() throws IOException
+  {
+    flush();
+    out.close();
+  }
+  */
+
+  /**
+   * This method runs when the object is garbage collected.  It is 
+   * responsible for ensuring that all buffered bytes are written and
+   * for closing the underlying stream.
+   *
+   * @exception IOException If an error occurs (ignored by the Java runtime)
+   *
+  protected void finalize() throws IOException
+  {
+    close();
+  }
+  */
+
+  /**
+   * This method writes a single byte of data.  This will be written to the
+   * buffer instead of the underlying data source.  However, if the buffer
+   * is filled as a result of this write request, it will be flushed to the
+   * underlying output stream.
+   *
+   * @param b The byte of data to be written, passed as an int
+   *
+   * @exception IOException If an error occurs
+   */
+  public synchronized void write(int b) throws IOException
+  {
+    if (count == buf.length)
+      flush();
+
+    buf[count] = (byte)(b & 0xFF);
+    ++count;
+  }
+
+  /**
+   * This method writes <code>len</code> bytes from the byte array 
+   * <code>buf</code> starting at position <code>offset</code> in the buffer. 
+   * These bytes will be written to the internal buffer.  However, if this
+   * write operation fills the buffer, the buffer will be flushed to the
+   * underlying output stream.
+   *
+   * @param buf The array of bytes to write.
+   * @param offset The index into the byte array to start writing from.
+   * @param len The number of bytes to write.
+   *
+   * @exception IOException If an error occurs
+   */
+  public synchronized void write(byte[] buf, int offset, int len) 
+    throws IOException
+  {
+    // Buffer can hold everything.  Note that the case where LEN < 0
+    // is automatically handled by the downstream write.
+    if (len < (this.buf.length - count))
+      {
+        System.arraycopy(buf, offset, this.buf, count, len);
+        count += len;
+      }
+    else
+      {
+        // The write was too big.  So flush the buffer and write the new
+        // bytes directly to the underlying stream, per the JDK 1.2
+        // docs.
+        flush();
+        out.write (buf, offset, len);
+      }
+  }
+
+} // class BufferedOutputStream 
+

Added: trunk/core/src/classpath/java/java/io/BufferedReader.java
===================================================================
--- trunk/core/src/classpath/java/java/io/BufferedReader.java	                        (rev 0)
+++ trunk/core/src/classpath/java/java/io/BufferedReader.java	2006-12-12 21:09:56 UTC (rev 2896)
@@ -0,0 +1,581 @@
+/* BufferedReader.java
+   Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
+     Free Software Foundation, Inc.
+
+This file is part of GNU Classpath.
+
+GNU Classpath is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2, or (at your option)
+any later version.
+ 
+GNU Classpath 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 for more details.
+
+You should have received a copy of the GNU General Public License
+along with GNU Classpath; see the file COPYING.  If not, write to the
+Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301 USA.
+
+Linking this library statically or dynamically with other modules is
+making a combined work based on this library.  Thus, the terms and
+conditions of the GNU General Public License cover the whole
+combination.
+
+As a special exception, the copyright holders of this library give you
+permission to link this library with independent modules to produce an
+executable, regardless of the license terms of these independent
+modules, and to copy and distribute the resulting executable under
+terms of your choice, provided that you also meet, for each linked
+independent module, the terms and conditions of the license of that
+module.  An independent module is a module which is not derived from
+or based on this library.  If you modify this library, you may extend
+this exception to your version of the library, but you are not
+obligated to do so.  If you do not wish to do so, delete this
+exception statement from your version. */
+
+
+package java.io;
+
+/* Written using "Java Class Libraries", 2nd edition, plus online
+ * API docs for JDK 1.2 beta from http://www.javasoft.com.
+ * Status:  Believed complete and correct.
+ */
+
+/**
+ * This subclass of <code>FilterReader</code> buffers input from an 
+ * underlying implementation to provide a possibly more efficient read
+ * mechanism.  It maintains the buffer and buffer state in instance 
+ * variables that are available to subclasses.  The default buffer size
+ * of 8192 chars can be overridden by the creator of the stream.
+ * <p>
+ * This class also implements mark/reset functionality.  It is capable
+ * of remembering any number of input chars, to the limits of
+ * system memory or the size of <code>Integer.MAX_VALUE</code>
+ *
+ * @author Per Bothner (bo...@cy...)
+ * @author Aaron M. Renn (ar...@ur...)
+ */
+public class BufferedReader extends Reader
+{
+  Reader in;
+  char[] buffer;
+  /* Index of current read position.  Must be >= 0 and <= limit. */
+  /* There is a special case where pos may be equal to limit+1; this
+   * is used as an indicator that a readLine was done with a '\r' was
+   * the very last char in the buffer.  Since we don't want to read-ahead
+   * and potentially block, we set pos this way to indicate the situation
+   * and deal with it later.  Doing it this way rather than having a
+   * separate boolean field to indicate the condition has the advantage
+   * that it is self-clearing on things like mark/reset.
+   */
+  int pos;
+  /* Limit of valid data in buffer.  Must be >= pos and <= buffer.length. */
+  /* This can be < pos in the one special case described above. */
+  int limit;
+
+  /* The value -1 means there is no mark, or the mark has been invalidated.
+     Otherwise, markPos is the index in the buffer of the marked position.
+     Must be >= 0 and <= pos.
+     Note we do not explicitly store the read-limit.
+     The implicit read-limit is (buffer.length - markPos), which is
+     guaranteed to be >= the read-limit requested in the call to mark. */
+  int markPos = -1;
+
+  // The JCL book specifies the default buffer size as 8K characters.
+  // This is package-private because it is used by LineNumberReader.
+  static final int DEFAULT_BUFFER_SIZE = 8192;
+
+  /**
+   * The line buffer for <code>readLine</code>.
+   */
+  private StringBuffer sbuf = null;
+
+  /**
+    * Create a new <code>BufferedReader</code> that will read from the 
+    * specified subordinate stream with a default buffer size of 8192 chars.
+    *
+    * @param in The subordinate stream to read from
+    */
+  public BufferedRe...
 
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