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diff --git a/libjava/gnu/java/net/LineInputStream.java b/libjava/gnu/java/net/LineInputStream.java
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-/* LineInputStream.java --
- Copyright (C) 2002, 2003, 2004 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 gnu.java.net;
-
-import java.io.ByteArrayOutputStream;
-import java.io.FilterInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-
-/**
- * An input stream that can read lines of input.
- *
- * @author Chris Burdess (dog@gnu.org)
- */
-public class LineInputStream
- extends FilterInputStream
-{
- /*
- * Line buffer.
- */
- private ByteArrayOutputStream buf;
-
- /*
- * Encoding to use when translating bytes to characters.
- */
- private String encoding;
-
- /*
- * End-of-stream flag.
- */
- private boolean eof;
-
- /**
- * Whether we can use block reads.
- */
- private final boolean blockReads;
-
- /**
- * Constructor using the US-ASCII character encoding.
- * @param in the underlying input stream
- */
- public LineInputStream(InputStream in)
- {
- this(in, "US-ASCII");
- }
-
- /**
- * Constructor.
- * @param in the underlying input stream
- * @param encoding the character encoding to use
- */
- public LineInputStream(InputStream in, String encoding)
- {
- super(in);
- buf = new ByteArrayOutputStream();
- this.encoding = encoding;
- eof = false;
- blockReads = in.markSupported();
- }
-
- /**
- * Read a line of input.
- */
- public String readLine()
- throws IOException
- {
- if (eof)
- {
- return null;
- }
- do
- {
- if (blockReads)
- {
- // Use mark and reset to read chunks of bytes
- final int MIN_LENGTH = 1024;
- int len, pos;
-
- len = in.available();
- len = (len < MIN_LENGTH) ? MIN_LENGTH : len;
- byte[] b = new byte[len];
- in.mark(len);
- // Read into buffer b
- len = in.read(b, 0, len);
- // Handle EOF
- if (len == -1)
- {
- eof = true;
- if (buf.size() == 0)
- {
- return null;
- }
- else
- {
- // We don't care about resetting buf
- return buf.toString(encoding);
- }
- }
- // Get index of LF in b
- pos = indexOf(b, len, (byte) 0x0a);
- if (pos != -1)
- {
- // Write pos bytes to buf
- buf.write(b, 0, pos);
- // Reset stream, and read pos + 1 bytes
- in.reset();
- pos += 1;
- while (pos > 0)
- {
- len = in.read(b, 0, pos);
- pos = (len == -1) ? -1 : pos - len;
- }
- // Return line
- String ret = buf.toString(encoding);
- buf.reset();
- return ret;
- }
- else
- {
- // Append everything to buf and fall through to re-read.
- buf.write(b, 0, len);
- }
- }
- else
- {
- // We must use character reads in order not to read too much
- // from the underlying stream.
- int c = in.read();
- switch (c)
- {
- case -1:
- eof = true;
- if (buf.size() == 0)
- {
- return null;
- }
- // Fall through and return contents of buffer.
- case 0x0a: // LF
- String ret = buf.toString(encoding);
- buf.reset();
- return ret;
- default:
- buf.write(c);
- }
- }
- }
- while (true);
- }
-
- private int indexOf(byte[] b, int len, byte c)
- {
- for (int pos = 0; pos < len; pos++)
- {
- if (b[pos] == c)
- {
- return pos;
- }
- }
- return -1;
- }
-}
-