jaroslav@1258: /*
jaroslav@1258:  * Copyright (c) 1996, 2011, Oracle and/or its affiliates. All rights reserved.
jaroslav@1258:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
jaroslav@1258:  *
jaroslav@1258:  * This code is free software; you can redistribute it and/or modify it
jaroslav@1258:  * under the terms of the GNU General Public License version 2 only, as
jaroslav@1258:  * published by the Free Software Foundation.  Oracle designates this
jaroslav@1258:  * particular file as subject to the "Classpath" exception as provided
jaroslav@1258:  * by Oracle in the LICENSE file that accompanied this code.
jaroslav@1258:  *
jaroslav@1258:  * This code is distributed in the hope that it will be useful, but WITHOUT
jaroslav@1258:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
jaroslav@1258:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
jaroslav@1258:  * version 2 for more details (a copy is included in the LICENSE file that
jaroslav@1258:  * accompanied this code).
jaroslav@1258:  *
jaroslav@1258:  * You should have received a copy of the GNU General Public License version
jaroslav@1258:  * 2 along with this work; if not, write to the Free Software Foundation,
jaroslav@1258:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
jaroslav@1258:  *
jaroslav@1258:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
jaroslav@1258:  * or visit www.oracle.com if you need additional information or have any
jaroslav@1258:  * questions.
jaroslav@1258:  */
jaroslav@1258: 
jaroslav@1258: package java.io;
jaroslav@1258: 
jaroslav@1343: import java.nio.charset.Charset;
jaroslav@1260: import java.util.Arrays;
jaroslav@1260: 
jaroslav@1258: 
jaroslav@1258: /**
jaroslav@1258:  * A <code>PrintStream</code> adds functionality to another output stream,
jaroslav@1258:  * namely the ability to print representations of various data values
jaroslav@1258:  * conveniently.  Two other features are provided as well.  Unlike other output
jaroslav@1258:  * streams, a <code>PrintStream</code> never throws an
jaroslav@1258:  * <code>IOException</code>; instead, exceptional situations merely set an
jaroslav@1258:  * internal flag that can be tested via the <code>checkError</code> method.
jaroslav@1258:  * Optionally, a <code>PrintStream</code> can be created so as to flush
jaroslav@1258:  * automatically; this means that the <code>flush</code> method is
jaroslav@1258:  * automatically invoked after a byte array is written, one of the
jaroslav@1258:  * <code>println</code> methods is invoked, or a newline character or byte
jaroslav@1258:  * (<code>'\n'</code>) is written.
jaroslav@1258:  *
jaroslav@1258:  * <p> All characters printed by a <code>PrintStream</code> are converted into
jaroslav@1258:  * bytes using the platform's default character encoding.  The <code>{@link
jaroslav@1258:  * PrintWriter}</code> class should be used in situations that require writing
jaroslav@1258:  * characters rather than bytes.
jaroslav@1258:  *
jaroslav@1258:  * @author     Frank Yellin
jaroslav@1258:  * @author     Mark Reinhold
jaroslav@1258:  * @since      JDK1.0
jaroslav@1258:  */
jaroslav@1258: 
jaroslav@1258: public class PrintStream extends FilterOutputStream
jaroslav@1258:     implements Appendable, Closeable
jaroslav@1258: {
jaroslav@1258: 
jaroslav@1258:     private final boolean autoFlush;
jaroslav@1258:     private boolean trouble = false;
jaroslav@1258:     private Formatter formatter;
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Track both the text- and character-output streams, so that their buffers
jaroslav@1258:      * can be flushed without flushing the entire stream.
jaroslav@1258:      */
jaroslav@1258:     private BufferedWriter textOut;
jaroslav@1258:     private OutputStreamWriter charOut;
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * requireNonNull is explicitly declared here so as not to create an extra
jaroslav@1258:      * dependency on java.util.Objects.requireNonNull. PrintStream is loaded
jaroslav@1258:      * early during system initialization.
jaroslav@1258:      */
jaroslav@1258:     private static <T> T requireNonNull(T obj, String message) {
jaroslav@1258:         if (obj == null)
jaroslav@1258:             throw new NullPointerException(message);
jaroslav@1258:         return obj;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /* Private constructors */
jaroslav@1258:     private PrintStream(boolean autoFlush, OutputStream out) {
jaroslav@1258:         super(out);
jaroslav@1258:         this.autoFlush = autoFlush;
jaroslav@1258:         this.charOut = new OutputStreamWriter(this);
jaroslav@1258:         this.textOut = new BufferedWriter(charOut);
jaroslav@1258:     }
jaroslav@1260:     
jaroslav@1260:     static final class Formatter {
jaroslav@1260:     }
jaroslav@1260:     
jaroslav@1260:     static Charset toCharset(String ch) throws UnsupportedEncodingException {
jaroslav@1260:         if (!"UTF-8".equals(ch)) {
jaroslav@1260:             throw new UnsupportedEncodingException();
jaroslav@1260:         }
jaroslav@1260:         return null;
jaroslav@1260:     }
jaroslav@1258: 
jaroslav@1258:     private PrintStream(boolean autoFlush, OutputStream out, Charset charset) {
jaroslav@1258:         super(out);
jaroslav@1258:         this.autoFlush = autoFlush;
jaroslav@1260:         this.charOut = new OutputStreamWriter(this);
jaroslav@1258:         this.textOut = new BufferedWriter(charOut);
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /* Variant of the private constructor so that the given charset name
jaroslav@1258:      * can be verified before evaluating the OutputStream argument. Used
jaroslav@1258:      * by constructors creating a FileOutputStream that also take a
jaroslav@1258:      * charset name.
jaroslav@1258:      */
jaroslav@1258:     private PrintStream(boolean autoFlush, Charset charset, OutputStream out)
jaroslav@1258:         throws UnsupportedEncodingException
jaroslav@1258:     {
jaroslav@1258:         this(autoFlush, out, charset);
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Creates a new print stream.  This stream will not flush automatically.
jaroslav@1258:      *
jaroslav@1258:      * @param  out        The output stream to which values and objects will be
jaroslav@1258:      *                    printed
jaroslav@1258:      *
jaroslav@1258:      * @see java.io.PrintWriter#PrintWriter(java.io.OutputStream)
jaroslav@1258:      */
jaroslav@1258:     public PrintStream(OutputStream out) {
jaroslav@1258:         this(out, false);
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Creates a new print stream.
jaroslav@1258:      *
jaroslav@1258:      * @param  out        The output stream to which values and objects will be
jaroslav@1258:      *                    printed
jaroslav@1258:      * @param  autoFlush  A boolean; if true, the output buffer will be flushed
jaroslav@1258:      *                    whenever a byte array is written, one of the
jaroslav@1258:      *                    <code>println</code> methods is invoked, or a newline
jaroslav@1258:      *                    character or byte (<code>'\n'</code>) is written
jaroslav@1258:      *
jaroslav@1258:      * @see java.io.PrintWriter#PrintWriter(java.io.OutputStream, boolean)
jaroslav@1258:      */
jaroslav@1258:     public PrintStream(OutputStream out, boolean autoFlush) {
jaroslav@1258:         this(autoFlush, requireNonNull(out, "Null output stream"));
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Creates a new print stream.
jaroslav@1258:      *
jaroslav@1258:      * @param  out        The output stream to which values and objects will be
jaroslav@1258:      *                    printed
jaroslav@1258:      * @param  autoFlush  A boolean; if true, the output buffer will be flushed
jaroslav@1258:      *                    whenever a byte array is written, one of the
jaroslav@1258:      *                    <code>println</code> methods is invoked, or a newline
jaroslav@1258:      *                    character or byte (<code>'\n'</code>) is written
jaroslav@1258:      * @param  encoding   The name of a supported
jaroslav@1258:      *                    <a href="../lang/package-summary.html#charenc">
jaroslav@1258:      *                    character encoding</a>
jaroslav@1258:      *
jaroslav@1258:      * @throws  UnsupportedEncodingException
jaroslav@1258:      *          If the named encoding is not supported
jaroslav@1258:      *
jaroslav@1258:      * @since  1.4
jaroslav@1258:      */
jaroslav@1258:     public PrintStream(OutputStream out, boolean autoFlush, String encoding)
jaroslav@1258:         throws UnsupportedEncodingException
jaroslav@1258:     {
jaroslav@1258:         this(autoFlush,
jaroslav@1258:              requireNonNull(out, "Null output stream"),
jaroslav@1258:              toCharset(encoding));
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Creates a new print stream, without automatic line flushing, with the
jaroslav@1258:      * specified file name.  This convenience constructor creates
jaroslav@1258:      * the necessary intermediate {@link java.io.OutputStreamWriter
jaroslav@1258:      * OutputStreamWriter}, which will encode characters using the
jaroslav@1258:      * {@linkplain java.nio.charset.Charset#defaultCharset() default charset}
jaroslav@1258:      * for this instance of the Java virtual machine.
jaroslav@1258:      *
jaroslav@1258:      * @param  fileName
jaroslav@1258:      *         The name of the file to use as the destination of this print
jaroslav@1258:      *         stream.  If the file exists, then it will be truncated to
jaroslav@1258:      *         zero size; otherwise, a new file will be created.  The output
jaroslav@1258:      *         will be written to the file and is buffered.
jaroslav@1258:      *
jaroslav@1258:      * @throws  FileNotFoundException
jaroslav@1258:      *          If the given file object does not denote an existing, writable
jaroslav@1258:      *          regular file and a new regular file of that name cannot be
jaroslav@1258:      *          created, or if some other error occurs while opening or
jaroslav@1258:      *          creating the file
jaroslav@1258:      *
jaroslav@1258:      * @throws  SecurityException
jaroslav@1258:      *          If a security manager is present and {@link
jaroslav@1258:      *          SecurityManager#checkWrite checkWrite(fileName)} denies write
jaroslav@1258:      *          access to the file
jaroslav@1258:      *
jaroslav@1258:      * @since  1.5
jaroslav@1258:      */
jaroslav@1258:     public PrintStream(String fileName) throws FileNotFoundException {
jaroslav@1260:         super(null);
jaroslav@1260:         throw new FileNotFoundException();
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Creates a new print stream, without automatic line flushing, with the
jaroslav@1258:      * specified file name and charset.  This convenience constructor creates
jaroslav@1258:      * the necessary intermediate {@link java.io.OutputStreamWriter
jaroslav@1258:      * OutputStreamWriter}, which will encode characters using the provided
jaroslav@1258:      * charset.
jaroslav@1258:      *
jaroslav@1258:      * @param  fileName
jaroslav@1258:      *         The name of the file to use as the destination of this print
jaroslav@1258:      *         stream.  If the file exists, then it will be truncated to
jaroslav@1258:      *         zero size; otherwise, a new file will be created.  The output
jaroslav@1258:      *         will be written to the file and is buffered.
jaroslav@1258:      *
jaroslav@1258:      * @param  csn
jaroslav@1258:      *         The name of a supported {@linkplain java.nio.charset.Charset
jaroslav@1258:      *         charset}
jaroslav@1258:      *
jaroslav@1258:      * @throws  FileNotFoundException
jaroslav@1258:      *          If the given file object does not denote an existing, writable
jaroslav@1258:      *          regular file and a new regular file of that name cannot be
jaroslav@1258:      *          created, or if some other error occurs while opening or
jaroslav@1258:      *          creating the file
jaroslav@1258:      *
jaroslav@1258:      * @throws  SecurityException
jaroslav@1258:      *          If a security manager is present and {@link
jaroslav@1258:      *          SecurityManager#checkWrite checkWrite(fileName)} denies write
jaroslav@1258:      *          access to the file
jaroslav@1258:      *
jaroslav@1258:      * @throws  UnsupportedEncodingException
jaroslav@1258:      *          If the named charset is not supported
jaroslav@1258:      *
jaroslav@1258:      * @since  1.5
jaroslav@1258:      */
jaroslav@1258:     public PrintStream(String fileName, String csn)
jaroslav@1258:         throws FileNotFoundException, UnsupportedEncodingException
jaroslav@1258:     {
jaroslav@1260:         super(null);
jaroslav@1260:         throw new FileNotFoundException();
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Creates a new print stream, without automatic line flushing, with the
jaroslav@1258:      * specified file.  This convenience constructor creates the necessary
jaroslav@1258:      * intermediate {@link java.io.OutputStreamWriter OutputStreamWriter},
jaroslav@1258:      * which will encode characters using the {@linkplain
jaroslav@1258:      * java.nio.charset.Charset#defaultCharset() default charset} for this
jaroslav@1258:      * instance of the Java virtual machine.
jaroslav@1258:      *
jaroslav@1258:      * @param  file
jaroslav@1258:      *         The file to use as the destination of this print stream.  If the
jaroslav@1258:      *         file exists, then it will be truncated to zero size; otherwise,
jaroslav@1258:      *         a new file will be created.  The output will be written to the
jaroslav@1258:      *         file and is buffered.
jaroslav@1258:      *
jaroslav@1258:      * @throws  FileNotFoundException
jaroslav@1258:      *          If the given file object does not denote an existing, writable
jaroslav@1258:      *          regular file and a new regular file of that name cannot be
jaroslav@1258:      *          created, or if some other error occurs while opening or
jaroslav@1258:      *          creating the file
jaroslav@1258:      *
jaroslav@1258:      * @throws  SecurityException
jaroslav@1258:      *          If a security manager is present and {@link
jaroslav@1258:      *          SecurityManager#checkWrite checkWrite(file.getPath())}
jaroslav@1258:      *          denies write access to the file
jaroslav@1258:      *
jaroslav@1258:      * @since  1.5
jaroslav@1258:      */
jaroslav@1258:     public PrintStream(File file) throws FileNotFoundException {
jaroslav@1260:         super(null);
jaroslav@1260:         throw new FileNotFoundException();
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Creates a new print stream, without automatic line flushing, with the
jaroslav@1258:      * specified file and charset.  This convenience constructor creates
jaroslav@1258:      * the necessary intermediate {@link java.io.OutputStreamWriter
jaroslav@1258:      * OutputStreamWriter}, which will encode characters using the provided
jaroslav@1258:      * charset.
jaroslav@1258:      *
jaroslav@1258:      * @param  file
jaroslav@1258:      *         The file to use as the destination of this print stream.  If the
jaroslav@1258:      *         file exists, then it will be truncated to zero size; otherwise,
jaroslav@1258:      *         a new file will be created.  The output will be written to the
jaroslav@1258:      *         file and is buffered.
jaroslav@1258:      *
jaroslav@1258:      * @param  csn
jaroslav@1258:      *         The name of a supported {@linkplain java.nio.charset.Charset
jaroslav@1258:      *         charset}
jaroslav@1258:      *
jaroslav@1258:      * @throws  FileNotFoundException
jaroslav@1258:      *          If the given file object does not denote an existing, writable
jaroslav@1258:      *          regular file and a new regular file of that name cannot be
jaroslav@1258:      *          created, or if some other error occurs while opening or
jaroslav@1258:      *          creating the file
jaroslav@1258:      *
jaroslav@1258:      * @throws  SecurityException
jaroslav@1258:      *          If a security manager is presentand {@link
jaroslav@1258:      *          SecurityManager#checkWrite checkWrite(file.getPath())}
jaroslav@1258:      *          denies write access to the file
jaroslav@1258:      *
jaroslav@1258:      * @throws  UnsupportedEncodingException
jaroslav@1258:      *          If the named charset is not supported
jaroslav@1258:      *
jaroslav@1258:      * @since  1.5
jaroslav@1258:      */
jaroslav@1258:     public PrintStream(File file, String csn)
jaroslav@1258:         throws FileNotFoundException, UnsupportedEncodingException
jaroslav@1258:     {
jaroslav@1260:         super(null);
jaroslav@1260:         throw new FileNotFoundException();
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /** Check to make sure that the stream has not been closed */
jaroslav@1258:     private void ensureOpen() throws IOException {
jaroslav@1258:         if (out == null)
jaroslav@1258:             throw new IOException("Stream closed");
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Flushes the stream.  This is done by writing any buffered output bytes to
jaroslav@1258:      * the underlying output stream and then flushing that stream.
jaroslav@1258:      *
jaroslav@1258:      * @see        java.io.OutputStream#flush()
jaroslav@1258:      */
jaroslav@1258:     public void flush() {
jaroslav@1258:         synchronized (this) {
jaroslav@1258:             try {
jaroslav@1258:                 ensureOpen();
jaroslav@1258:                 out.flush();
jaroslav@1258:             }
jaroslav@1258:             catch (IOException x) {
jaroslav@1258:                 trouble = true;
jaroslav@1258:             }
jaroslav@1258:         }
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     private boolean closing = false; /* To avoid recursive closing */
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Closes the stream.  This is done by flushing the stream and then closing
jaroslav@1258:      * the underlying output stream.
jaroslav@1258:      *
jaroslav@1258:      * @see        java.io.OutputStream#close()
jaroslav@1258:      */
jaroslav@1258:     public void close() {
jaroslav@1258:         synchronized (this) {
jaroslav@1258:             if (! closing) {
jaroslav@1258:                 closing = true;
jaroslav@1258:                 try {
jaroslav@1258:                     textOut.close();
jaroslav@1258:                     out.close();
jaroslav@1258:                 }
jaroslav@1258:                 catch (IOException x) {
jaroslav@1258:                     trouble = true;
jaroslav@1258:                 }
jaroslav@1258:                 textOut = null;
jaroslav@1258:                 charOut = null;
jaroslav@1258:                 out = null;
jaroslav@1258:             }
jaroslav@1258:         }
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Flushes the stream and checks its error state. The internal error state
jaroslav@1258:      * is set to <code>true</code> when the underlying output stream throws an
jaroslav@1258:      * <code>IOException</code> other than <code>InterruptedIOException</code>,
jaroslav@1258:      * and when the <code>setError</code> method is invoked.  If an operation
jaroslav@1258:      * on the underlying output stream throws an
jaroslav@1258:      * <code>InterruptedIOException</code>, then the <code>PrintStream</code>
jaroslav@1258:      * converts the exception back into an interrupt by doing:
jaroslav@1258:      * <pre>
jaroslav@1258:      *     Thread.currentThread().interrupt();
jaroslav@1258:      * </pre>
jaroslav@1258:      * or the equivalent.
jaroslav@1258:      *
jaroslav@1258:      * @return <code>true</code> if and only if this stream has encountered an
jaroslav@1258:      *         <code>IOException</code> other than
jaroslav@1258:      *         <code>InterruptedIOException</code>, or the
jaroslav@1258:      *         <code>setError</code> method has been invoked
jaroslav@1258:      */
jaroslav@1258:     public boolean checkError() {
jaroslav@1258:         if (out != null)
jaroslav@1258:             flush();
jaroslav@1258:         if (out instanceof java.io.PrintStream) {
jaroslav@1258:             PrintStream ps = (PrintStream) out;
jaroslav@1258:             return ps.checkError();
jaroslav@1258:         }
jaroslav@1258:         return trouble;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Sets the error state of the stream to <code>true</code>.
jaroslav@1258:      *
jaroslav@1258:      * <p> This method will cause subsequent invocations of {@link
jaroslav@1258:      * #checkError()} to return <tt>true</tt> until {@link
jaroslav@1258:      * #clearError()} is invoked.
jaroslav@1258:      *
jaroslav@1258:      * @since JDK1.1
jaroslav@1258:      */
jaroslav@1258:     protected void setError() {
jaroslav@1258:         trouble = true;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Clears the internal error state of this stream.
jaroslav@1258:      *
jaroslav@1258:      * <p> This method will cause subsequent invocations of {@link
jaroslav@1258:      * #checkError()} to return <tt>false</tt> until another write
jaroslav@1258:      * operation fails and invokes {@link #setError()}.
jaroslav@1258:      *
jaroslav@1258:      * @since 1.6
jaroslav@1258:      */
jaroslav@1258:     protected void clearError() {
jaroslav@1258:         trouble = false;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /*
jaroslav@1258:      * Exception-catching, synchronized output operations,
jaroslav@1258:      * which also implement the write() methods of OutputStream
jaroslav@1258:      */
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Writes the specified byte to this stream.  If the byte is a newline and
jaroslav@1258:      * automatic flushing is enabled then the <code>flush</code> method will be
jaroslav@1258:      * invoked.
jaroslav@1258:      *
jaroslav@1258:      * <p> Note that the byte is written as given; to write a character that
jaroslav@1258:      * will be translated according to the platform's default character
jaroslav@1258:      * encoding, use the <code>print(char)</code> or <code>println(char)</code>
jaroslav@1258:      * methods.
jaroslav@1258:      *
jaroslav@1258:      * @param  b  The byte to be written
jaroslav@1258:      * @see #print(char)
jaroslav@1258:      * @see #println(char)
jaroslav@1258:      */
jaroslav@1258:     public void write(int b) {
jaroslav@1258:         try {
jaroslav@1258:             synchronized (this) {
jaroslav@1258:                 ensureOpen();
jaroslav@1258:                 out.write(b);
jaroslav@1258:                 if ((b == '\n') && autoFlush)
jaroslav@1258:                     out.flush();
jaroslav@1258:             }
jaroslav@1258:         }
jaroslav@1258:         catch (InterruptedIOException x) {
jaroslav@1258:             Thread.currentThread().interrupt();
jaroslav@1258:         }
jaroslav@1258:         catch (IOException x) {
jaroslav@1258:             trouble = true;
jaroslav@1258:         }
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Writes <code>len</code> bytes from the specified byte array starting at
jaroslav@1258:      * offset <code>off</code> to this stream.  If automatic flushing is
jaroslav@1258:      * enabled then the <code>flush</code> method will be invoked.
jaroslav@1258:      *
jaroslav@1258:      * <p> Note that the bytes will be written as given; to write characters
jaroslav@1258:      * that will be translated according to the platform's default character
jaroslav@1258:      * encoding, use the <code>print(char)</code> or <code>println(char)</code>
jaroslav@1258:      * methods.
jaroslav@1258:      *
jaroslav@1258:      * @param  buf   A byte array
jaroslav@1258:      * @param  off   Offset from which to start taking bytes
jaroslav@1258:      * @param  len   Number of bytes to write
jaroslav@1258:      */
jaroslav@1258:     public void write(byte buf[], int off, int len) {
jaroslav@1258:         try {
jaroslav@1258:             synchronized (this) {
jaroslav@1258:                 ensureOpen();
jaroslav@1258:                 out.write(buf, off, len);
jaroslav@1258:                 if (autoFlush)
jaroslav@1258:                     out.flush();
jaroslav@1258:             }
jaroslav@1258:         }
jaroslav@1258:         catch (InterruptedIOException x) {
jaroslav@1258:             Thread.currentThread().interrupt();
jaroslav@1258:         }
jaroslav@1258:         catch (IOException x) {
jaroslav@1258:             trouble = true;
jaroslav@1258:         }
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /*
jaroslav@1258:      * The following private methods on the text- and character-output streams
jaroslav@1258:      * always flush the stream buffers, so that writes to the underlying byte
jaroslav@1258:      * stream occur as promptly as with the original PrintStream.
jaroslav@1258:      */
jaroslav@1258: 
jaroslav@1258:     private void write(char buf[]) {
jaroslav@1258:         try {
jaroslav@1258:             synchronized (this) {
jaroslav@1258:                 ensureOpen();
jaroslav@1258:                 textOut.write(buf);
jaroslav@1258:                 textOut.flushBuffer();
jaroslav@1258:                 charOut.flushBuffer();
jaroslav@1258:                 if (autoFlush) {
jaroslav@1258:                     for (int i = 0; i < buf.length; i++)
jaroslav@1258:                         if (buf[i] == '\n')
jaroslav@1258:                             out.flush();
jaroslav@1258:                 }
jaroslav@1258:             }
jaroslav@1258:         }
jaroslav@1258:         catch (InterruptedIOException x) {
jaroslav@1258:             Thread.currentThread().interrupt();
jaroslav@1258:         }
jaroslav@1258:         catch (IOException x) {
jaroslav@1258:             trouble = true;
jaroslav@1258:         }
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     private void write(String s) {
jaroslav@1258:         try {
jaroslav@1258:             synchronized (this) {
jaroslav@1258:                 ensureOpen();
jaroslav@1258:                 textOut.write(s);
jaroslav@1258:                 textOut.flushBuffer();
jaroslav@1258:                 charOut.flushBuffer();
jaroslav@1258:                 if (autoFlush && (s.indexOf('\n') >= 0))
jaroslav@1258:                     out.flush();
jaroslav@1258:             }
jaroslav@1258:         }
jaroslav@1258:         catch (InterruptedIOException x) {
jaroslav@1258:             Thread.currentThread().interrupt();
jaroslav@1258:         }
jaroslav@1258:         catch (IOException x) {
jaroslav@1258:             trouble = true;
jaroslav@1258:         }
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     private void newLine() {
jaroslav@1258:         try {
jaroslav@1258:             synchronized (this) {
jaroslav@1258:                 ensureOpen();
jaroslav@1258:                 textOut.newLine();
jaroslav@1258:                 textOut.flushBuffer();
jaroslav@1258:                 charOut.flushBuffer();
jaroslav@1258:                 if (autoFlush)
jaroslav@1258:                     out.flush();
jaroslav@1258:             }
jaroslav@1258:         }
jaroslav@1258:         catch (InterruptedIOException x) {
jaroslav@1258:             Thread.currentThread().interrupt();
jaroslav@1258:         }
jaroslav@1258:         catch (IOException x) {
jaroslav@1258:             trouble = true;
jaroslav@1258:         }
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /* Methods that do not terminate lines */
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Prints a boolean value.  The string produced by <code>{@link
jaroslav@1258:      * java.lang.String#valueOf(boolean)}</code> is translated into bytes
jaroslav@1258:      * according to the platform's default character encoding, and these bytes
jaroslav@1258:      * are written in exactly the manner of the
jaroslav@1258:      * <code>{@link #write(int)}</code> method.
jaroslav@1258:      *
jaroslav@1258:      * @param      b   The <code>boolean</code> to be printed
jaroslav@1258:      */
jaroslav@1258:     public void print(boolean b) {
jaroslav@1258:         write(b ? "true" : "false");
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Prints a character.  The character is translated into one or more bytes
jaroslav@1258:      * according to the platform's default character encoding, and these bytes
jaroslav@1258:      * are written in exactly the manner of the
jaroslav@1258:      * <code>{@link #write(int)}</code> method.
jaroslav@1258:      *
jaroslav@1258:      * @param      c   The <code>char</code> to be printed
jaroslav@1258:      */
jaroslav@1258:     public void print(char c) {
jaroslav@1258:         write(String.valueOf(c));
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Prints an integer.  The string produced by <code>{@link
jaroslav@1258:      * java.lang.String#valueOf(int)}</code> is translated into bytes
jaroslav@1258:      * according to the platform's default character encoding, and these bytes
jaroslav@1258:      * are written in exactly the manner of the
jaroslav@1258:      * <code>{@link #write(int)}</code> method.
jaroslav@1258:      *
jaroslav@1258:      * @param      i   The <code>int</code> to be printed
jaroslav@1258:      * @see        java.lang.Integer#toString(int)
jaroslav@1258:      */
jaroslav@1258:     public void print(int i) {
jaroslav@1258:         write(String.valueOf(i));
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Prints a long integer.  The string produced by <code>{@link
jaroslav@1258:      * java.lang.String#valueOf(long)}</code> is translated into bytes
jaroslav@1258:      * according to the platform's default character encoding, and these bytes
jaroslav@1258:      * are written in exactly the manner of the
jaroslav@1258:      * <code>{@link #write(int)}</code> method.
jaroslav@1258:      *
jaroslav@1258:      * @param      l   The <code>long</code> to be printed
jaroslav@1258:      * @see        java.lang.Long#toString(long)
jaroslav@1258:      */
jaroslav@1258:     public void print(long l) {
jaroslav@1258:         write(String.valueOf(l));
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Prints a floating-point number.  The string produced by <code>{@link
jaroslav@1258:      * java.lang.String#valueOf(float)}</code> is translated into bytes
jaroslav@1258:      * according to the platform's default character encoding, and these bytes
jaroslav@1258:      * are written in exactly the manner of the
jaroslav@1258:      * <code>{@link #write(int)}</code> method.
jaroslav@1258:      *
jaroslav@1258:      * @param      f   The <code>float</code> to be printed
jaroslav@1258:      * @see        java.lang.Float#toString(float)
jaroslav@1258:      */
jaroslav@1258:     public void print(float f) {
jaroslav@1258:         write(String.valueOf(f));
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Prints a double-precision floating-point number.  The string produced by
jaroslav@1258:      * <code>{@link java.lang.String#valueOf(double)}</code> is translated into
jaroslav@1258:      * bytes according to the platform's default character encoding, and these
jaroslav@1258:      * bytes are written in exactly the manner of the <code>{@link
jaroslav@1258:      * #write(int)}</code> method.
jaroslav@1258:      *
jaroslav@1258:      * @param      d   The <code>double</code> to be printed
jaroslav@1258:      * @see        java.lang.Double#toString(double)
jaroslav@1258:      */
jaroslav@1258:     public void print(double d) {
jaroslav@1258:         write(String.valueOf(d));
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Prints an array of characters.  The characters are converted into bytes
jaroslav@1258:      * according to the platform's default character encoding, and these bytes
jaroslav@1258:      * are written in exactly the manner of the
jaroslav@1258:      * <code>{@link #write(int)}</code> method.
jaroslav@1258:      *
jaroslav@1258:      * @param      s   The array of chars to be printed
jaroslav@1258:      *
jaroslav@1258:      * @throws  NullPointerException  If <code>s</code> is <code>null</code>
jaroslav@1258:      */
jaroslav@1258:     public void print(char s[]) {
jaroslav@1258:         write(s);
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Prints a string.  If the argument is <code>null</code> then the string
jaroslav@1258:      * <code>"null"</code> is printed.  Otherwise, the string's characters are
jaroslav@1258:      * converted into bytes according to the platform's default character
jaroslav@1258:      * encoding, and these bytes are written in exactly the manner of the
jaroslav@1258:      * <code>{@link #write(int)}</code> method.
jaroslav@1258:      *
jaroslav@1258:      * @param      s   The <code>String</code> to be printed
jaroslav@1258:      */
jaroslav@1258:     public void print(String s) {
jaroslav@1258:         if (s == null) {
jaroslav@1258:             s = "null";
jaroslav@1258:         }
jaroslav@1258:         write(s);
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Prints an object.  The string produced by the <code>{@link
jaroslav@1258:      * java.lang.String#valueOf(Object)}</code> method is translated into bytes
jaroslav@1258:      * according to the platform's default character encoding, and these bytes
jaroslav@1258:      * are written in exactly the manner of the
jaroslav@1258:      * <code>{@link #write(int)}</code> method.
jaroslav@1258:      *
jaroslav@1258:      * @param      obj   The <code>Object</code> to be printed
jaroslav@1258:      * @see        java.lang.Object#toString()
jaroslav@1258:      */
jaroslav@1258:     public void print(Object obj) {
jaroslav@1258:         write(String.valueOf(obj));
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258: 
jaroslav@1258:     /* Methods that do terminate lines */
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Terminates the current line by writing the line separator string.  The
jaroslav@1258:      * line separator string is defined by the system property
jaroslav@1258:      * <code>line.separator</code>, and is not necessarily a single newline
jaroslav@1258:      * character (<code>'\n'</code>).
jaroslav@1258:      */
jaroslav@1258:     public void println() {
jaroslav@1258:         newLine();
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Prints a boolean and then terminate the line.  This method behaves as
jaroslav@1258:      * though it invokes <code>{@link #print(boolean)}</code> and then
jaroslav@1258:      * <code>{@link #println()}</code>.
jaroslav@1258:      *
jaroslav@1258:      * @param x  The <code>boolean</code> to be printed
jaroslav@1258:      */
jaroslav@1258:     public void println(boolean x) {
jaroslav@1258:         synchronized (this) {
jaroslav@1258:             print(x);
jaroslav@1258:             newLine();
jaroslav@1258:         }
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Prints a character and then terminate the line.  This method behaves as
jaroslav@1258:      * though it invokes <code>{@link #print(char)}</code> and then
jaroslav@1258:      * <code>{@link #println()}</code>.
jaroslav@1258:      *
jaroslav@1258:      * @param x  The <code>char</code> to be printed.
jaroslav@1258:      */
jaroslav@1258:     public void println(char x) {
jaroslav@1258:         synchronized (this) {
jaroslav@1258:             print(x);
jaroslav@1258:             newLine();
jaroslav@1258:         }
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Prints an integer and then terminate the line.  This method behaves as
jaroslav@1258:      * though it invokes <code>{@link #print(int)}</code> and then
jaroslav@1258:      * <code>{@link #println()}</code>.
jaroslav@1258:      *
jaroslav@1258:      * @param x  The <code>int</code> to be printed.
jaroslav@1258:      */
jaroslav@1258:     public void println(int x) {
jaroslav@1258:         synchronized (this) {
jaroslav@1258:             print(x);
jaroslav@1258:             newLine();
jaroslav@1258:         }
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Prints a long and then terminate the line.  This method behaves as
jaroslav@1258:      * though it invokes <code>{@link #print(long)}</code> and then
jaroslav@1258:      * <code>{@link #println()}</code>.
jaroslav@1258:      *
jaroslav@1258:      * @param x  a The <code>long</code> to be printed.
jaroslav@1258:      */
jaroslav@1258:     public void println(long x) {
jaroslav@1258:         synchronized (this) {
jaroslav@1258:             print(x);
jaroslav@1258:             newLine();
jaroslav@1258:         }
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Prints a float and then terminate the line.  This method behaves as
jaroslav@1258:      * though it invokes <code>{@link #print(float)}</code> and then
jaroslav@1258:      * <code>{@link #println()}</code>.
jaroslav@1258:      *
jaroslav@1258:      * @param x  The <code>float</code> to be printed.
jaroslav@1258:      */
jaroslav@1258:     public void println(float x) {
jaroslav@1258:         synchronized (this) {
jaroslav@1258:             print(x);
jaroslav@1258:             newLine();
jaroslav@1258:         }
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Prints a double and then terminate the line.  This method behaves as
jaroslav@1258:      * though it invokes <code>{@link #print(double)}</code> and then
jaroslav@1258:      * <code>{@link #println()}</code>.
jaroslav@1258:      *
jaroslav@1258:      * @param x  The <code>double</code> to be printed.
jaroslav@1258:      */
jaroslav@1258:     public void println(double x) {
jaroslav@1258:         synchronized (this) {
jaroslav@1258:             print(x);
jaroslav@1258:             newLine();
jaroslav@1258:         }
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Prints an array of characters and then terminate the line.  This method
jaroslav@1258:      * behaves as though it invokes <code>{@link #print(char[])}</code> and
jaroslav@1258:      * then <code>{@link #println()}</code>.
jaroslav@1258:      *
jaroslav@1258:      * @param x  an array of chars to print.
jaroslav@1258:      */
jaroslav@1258:     public void println(char x[]) {
jaroslav@1258:         synchronized (this) {
jaroslav@1258:             print(x);
jaroslav@1258:             newLine();
jaroslav@1258:         }
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Prints a String and then terminate the line.  This method behaves as
jaroslav@1258:      * though it invokes <code>{@link #print(String)}</code> and then
jaroslav@1258:      * <code>{@link #println()}</code>.
jaroslav@1258:      *
jaroslav@1258:      * @param x  The <code>String</code> to be printed.
jaroslav@1258:      */
jaroslav@1258:     public void println(String x) {
jaroslav@1258:         synchronized (this) {
jaroslav@1258:             print(x);
jaroslav@1258:             newLine();
jaroslav@1258:         }
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Prints an Object and then terminate the line.  This method calls
jaroslav@1258:      * at first String.valueOf(x) to get the printed object's string value,
jaroslav@1258:      * then behaves as
jaroslav@1258:      * though it invokes <code>{@link #print(String)}</code> and then
jaroslav@1258:      * <code>{@link #println()}</code>.
jaroslav@1258:      *
jaroslav@1258:      * @param x  The <code>Object</code> to be printed.
jaroslav@1258:      */
jaroslav@1258:     public void println(Object x) {
jaroslav@1258:         String s = String.valueOf(x);
jaroslav@1258:         synchronized (this) {
jaroslav@1258:             print(s);
jaroslav@1258:             newLine();
jaroslav@1258:         }
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * A convenience method to write a formatted string to this output stream
jaroslav@1258:      * using the specified format string and arguments.
jaroslav@1258:      *
jaroslav@1258:      * <p> An invocation of this method of the form <tt>out.printf(format,
jaroslav@1258:      * args)</tt> behaves in exactly the same way as the invocation
jaroslav@1258:      *
jaroslav@1258:      * <pre>
jaroslav@1258:      *     out.format(format, args) </pre>
jaroslav@1258:      *
jaroslav@1258:      * @param  format
jaroslav@1258:      *         A format string as described in <a
jaroslav@1258:      *         href="../util/Formatter.html#syntax">Format string syntax</a>
jaroslav@1258:      *
jaroslav@1258:      * @param  args
jaroslav@1258:      *         Arguments referenced by the format specifiers in the format
jaroslav@1258:      *         string.  If there are more arguments than format specifiers, the
jaroslav@1258:      *         extra arguments are ignored.  The number of arguments is
jaroslav@1258:      *         variable and may be zero.  The maximum number of arguments is
jaroslav@1258:      *         limited by the maximum dimension of a Java array as defined by
jaroslav@1258:      *         <cite>The Java&trade; Virtual Machine Specification</cite>.
jaroslav@1258:      *         The behaviour on a
jaroslav@1258:      *         <tt>null</tt> argument depends on the <a
jaroslav@1258:      *         href="../util/Formatter.html#syntax">conversion</a>.
jaroslav@1258:      *
jaroslav@1258:      * @throws  IllegalFormatException
jaroslav@1258:      *          If a format string contains an illegal syntax, a format
jaroslav@1258:      *          specifier that is incompatible with the given arguments,
jaroslav@1258:      *          insufficient arguments given the format string, or other
jaroslav@1258:      *          illegal conditions.  For specification of all possible
jaroslav@1258:      *          formatting errors, see the <a
jaroslav@1258:      *          href="../util/Formatter.html#detail">Details</a> section of the
jaroslav@1258:      *          formatter class specification.
jaroslav@1258:      *
jaroslav@1258:      * @throws  NullPointerException
jaroslav@1258:      *          If the <tt>format</tt> is <tt>null</tt>
jaroslav@1258:      *
jaroslav@1258:      * @return  This output stream
jaroslav@1258:      *
jaroslav@1258:      * @since  1.5
jaroslav@1258:      */
jaroslav@1258:     public PrintStream printf(String format, Object ... args) {
jaroslav@1260:         append(format).append(Arrays.toString(args));
jaroslav@1260:         return this;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * A convenience method to write a formatted string to this output stream
jaroslav@1258:      * using the specified format string and arguments.
jaroslav@1258:      *
jaroslav@1258:      * <p> An invocation of this method of the form <tt>out.printf(l, format,
jaroslav@1258:      * args)</tt> behaves in exactly the same way as the invocation
jaroslav@1258:      *
jaroslav@1258:      * <pre>
jaroslav@1258:      *     out.format(l, format, args) </pre>
jaroslav@1258:      *
jaroslav@1258:      * @param  l
jaroslav@1258:      *         The {@linkplain java.util.Locale locale} to apply during
jaroslav@1258:      *         formatting.  If <tt>l</tt> is <tt>null</tt> then no localization
jaroslav@1258:      *         is applied.
jaroslav@1258:      *
jaroslav@1258:      * @param  format
jaroslav@1258:      *         A format string as described in <a
jaroslav@1258:      *         href="../util/Formatter.html#syntax">Format string syntax</a>
jaroslav@1258:      *
jaroslav@1258:      * @param  args
jaroslav@1258:      *         Arguments referenced by the format specifiers in the format
jaroslav@1258:      *         string.  If there are more arguments than format specifiers, the
jaroslav@1258:      *         extra arguments are ignored.  The number of arguments is
jaroslav@1258:      *         variable and may be zero.  The maximum number of arguments is
jaroslav@1258:      *         limited by the maximum dimension of a Java array as defined by
jaroslav@1258:      *         <cite>The Java&trade; Virtual Machine Specification</cite>.
jaroslav@1258:      *         The behaviour on a
jaroslav@1258:      *         <tt>null</tt> argument depends on the <a
jaroslav@1258:      *         href="../util/Formatter.html#syntax">conversion</a>.
jaroslav@1258:      *
jaroslav@1258:      * @throws  IllegalFormatException
jaroslav@1258:      *          If a format string contains an illegal syntax, a format
jaroslav@1258:      *          specifier that is incompatible with the given arguments,
jaroslav@1258:      *          insufficient arguments given the format string, or other
jaroslav@1258:      *          illegal conditions.  For specification of all possible
jaroslav@1258:      *          formatting errors, see the <a
jaroslav@1258:      *          href="../util/Formatter.html#detail">Details</a> section of the
jaroslav@1258:      *          formatter class specification.
jaroslav@1258:      *
jaroslav@1258:      * @throws  NullPointerException
jaroslav@1258:      *          If the <tt>format</tt> is <tt>null</tt>
jaroslav@1258:      *
jaroslav@1258:      * @return  This output stream
jaroslav@1258:      *
jaroslav@1258:      * @since  1.5
jaroslav@1258:      */
jaroslav@1260: //    public PrintStream printf(Locale l, String format, Object ... args) {
jaroslav@1260: //        return format(l, format, args);
jaroslav@1260: //    }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Writes a formatted string to this output stream using the specified
jaroslav@1258:      * format string and arguments.
jaroslav@1258:      *
jaroslav@1258:      * <p> The locale always used is the one returned by {@link
jaroslav@1258:      * java.util.Locale#getDefault() Locale.getDefault()}, regardless of any
jaroslav@1258:      * previous invocations of other formatting methods on this object.
jaroslav@1258:      *
jaroslav@1258:      * @param  format
jaroslav@1258:      *         A format string as described in <a
jaroslav@1258:      *         href="../util/Formatter.html#syntax">Format string syntax</a>
jaroslav@1258:      *
jaroslav@1258:      * @param  args
jaroslav@1258:      *         Arguments referenced by the format specifiers in the format
jaroslav@1258:      *         string.  If there are more arguments than format specifiers, the
jaroslav@1258:      *         extra arguments are ignored.  The number of arguments is
jaroslav@1258:      *         variable and may be zero.  The maximum number of arguments is
jaroslav@1258:      *         limited by the maximum dimension of a Java array as defined by
jaroslav@1258:      *         <cite>The Java&trade; Virtual Machine Specification</cite>.
jaroslav@1258:      *         The behaviour on a
jaroslav@1258:      *         <tt>null</tt> argument depends on the <a
jaroslav@1258:      *         href="../util/Formatter.html#syntax">conversion</a>.
jaroslav@1258:      *
jaroslav@1258:      * @throws  IllegalFormatException
jaroslav@1258:      *          If a format string contains an illegal syntax, a format
jaroslav@1258:      *          specifier that is incompatible with the given arguments,
jaroslav@1258:      *          insufficient arguments given the format string, or other
jaroslav@1258:      *          illegal conditions.  For specification of all possible
jaroslav@1258:      *          formatting errors, see the <a
jaroslav@1258:      *          href="../util/Formatter.html#detail">Details</a> section of the
jaroslav@1258:      *          formatter class specification.
jaroslav@1258:      *
jaroslav@1258:      * @throws  NullPointerException
jaroslav@1258:      *          If the <tt>format</tt> is <tt>null</tt>
jaroslav@1258:      *
jaroslav@1258:      * @return  This output stream
jaroslav@1258:      *
jaroslav@1258:      * @since  1.5
jaroslav@1258:      */
jaroslav@1260: //    public PrintStream format(String format, Object ... args) {
jaroslav@1260: //        try {
jaroslav@1260: //            synchronized (this) {
jaroslav@1260: //                ensureOpen();
jaroslav@1260: //                if ((formatter == null)
jaroslav@1260: //                    || (formatter.locale() != Locale.getDefault()))
jaroslav@1260: //                    formatter = new Formatter((Appendable) this);
jaroslav@1260: //                formatter.format(Locale.getDefault(), format, args);
jaroslav@1260: //            }
jaroslav@1260: //        } catch (InterruptedIOException x) {
jaroslav@1260: //            Thread.currentThread().interrupt();
jaroslav@1260: //        } catch (IOException x) {
jaroslav@1260: //            trouble = true;
jaroslav@1260: //        }
jaroslav@1260: //        return this;
jaroslav@1260: //    }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Writes a formatted string to this output stream using the specified
jaroslav@1258:      * format string and arguments.
jaroslav@1258:      *
jaroslav@1258:      * @param  l
jaroslav@1258:      *         The {@linkplain java.util.Locale locale} to apply during
jaroslav@1258:      *         formatting.  If <tt>l</tt> is <tt>null</tt> then no localization
jaroslav@1258:      *         is applied.
jaroslav@1258:      *
jaroslav@1258:      * @param  format
jaroslav@1258:      *         A format string as described in <a
jaroslav@1258:      *         href="../util/Formatter.html#syntax">Format string syntax</a>
jaroslav@1258:      *
jaroslav@1258:      * @param  args
jaroslav@1258:      *         Arguments referenced by the format specifiers in the format
jaroslav@1258:      *         string.  If there are more arguments than format specifiers, the
jaroslav@1258:      *         extra arguments are ignored.  The number of arguments is
jaroslav@1258:      *         variable and may be zero.  The maximum number of arguments is
jaroslav@1258:      *         limited by the maximum dimension of a Java array as defined by
jaroslav@1258:      *         <cite>The Java&trade; Virtual Machine Specification</cite>.
jaroslav@1258:      *         The behaviour on a
jaroslav@1258:      *         <tt>null</tt> argument depends on the <a
jaroslav@1258:      *         href="../util/Formatter.html#syntax">conversion</a>.
jaroslav@1258:      *
jaroslav@1258:      * @throws  IllegalFormatException
jaroslav@1258:      *          If a format string contains an illegal syntax, a format
jaroslav@1258:      *          specifier that is incompatible with the given arguments,
jaroslav@1258:      *          insufficient arguments given the format string, or other
jaroslav@1258:      *          illegal conditions.  For specification of all possible
jaroslav@1258:      *          formatting errors, see the <a
jaroslav@1258:      *          href="../util/Formatter.html#detail">Details</a> section of the
jaroslav@1258:      *          formatter class specification.
jaroslav@1258:      *
jaroslav@1258:      * @throws  NullPointerException
jaroslav@1258:      *          If the <tt>format</tt> is <tt>null</tt>
jaroslav@1258:      *
jaroslav@1258:      * @return  This output stream
jaroslav@1258:      *
jaroslav@1258:      * @since  1.5
jaroslav@1258:      */
jaroslav@1260: ////    public PrintStream format(Locale l, String format, Object ... args) {
jaroslav@1260: ////        try {
jaroslav@1260: ////            synchronized (this) {
jaroslav@1260: ////                ensureOpen();
jaroslav@1260: ////                if ((formatter == null)
jaroslav@1260: ////                    || (formatter.locale() != l))
jaroslav@1260: ////                    formatter = new Formatter(this, l);
jaroslav@1260: ////                formatter.format(l, format, args);
jaroslav@1260: ////            }
jaroslav@1260: ////        } catch (InterruptedIOException x) {
jaroslav@1260: ////            Thread.currentThread().interrupt();
jaroslav@1260: ////        } catch (IOException x) {
jaroslav@1260: ////            trouble = true;
jaroslav@1260: ////        }
jaroslav@1260: ////        return this;
jaroslav@1260: ////    }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Appends the specified character sequence to this output stream.
jaroslav@1258:      *
jaroslav@1258:      * <p> An invocation of this method of the form <tt>out.append(csq)</tt>
jaroslav@1258:      * behaves in exactly the same way as the invocation
jaroslav@1258:      *
jaroslav@1258:      * <pre>
jaroslav@1258:      *     out.print(csq.toString()) </pre>
jaroslav@1258:      *
jaroslav@1258:      * <p> Depending on the specification of <tt>toString</tt> for the
jaroslav@1258:      * character sequence <tt>csq</tt>, the entire sequence may not be
jaroslav@1258:      * appended.  For instance, invoking then <tt>toString</tt> method of a
jaroslav@1258:      * character buffer will return a subsequence whose content depends upon
jaroslav@1258:      * the buffer's position and limit.
jaroslav@1258:      *
jaroslav@1258:      * @param  csq
jaroslav@1258:      *         The character sequence to append.  If <tt>csq</tt> is
jaroslav@1258:      *         <tt>null</tt>, then the four characters <tt>"null"</tt> are
jaroslav@1258:      *         appended to this output stream.
jaroslav@1258:      *
jaroslav@1258:      * @return  This output stream
jaroslav@1258:      *
jaroslav@1258:      * @since  1.5
jaroslav@1258:      */
jaroslav@1258:     public PrintStream append(CharSequence csq) {
jaroslav@1258:         if (csq == null)
jaroslav@1258:             print("null");
jaroslav@1258:         else
jaroslav@1258:             print(csq.toString());
jaroslav@1258:         return this;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Appends a subsequence of the specified character sequence to this output
jaroslav@1258:      * stream.
jaroslav@1258:      *
jaroslav@1258:      * <p> An invocation of this method of the form <tt>out.append(csq, start,
jaroslav@1258:      * end)</tt> when <tt>csq</tt> is not <tt>null</tt>, behaves in
jaroslav@1258:      * exactly the same way as the invocation
jaroslav@1258:      *
jaroslav@1258:      * <pre>
jaroslav@1258:      *     out.print(csq.subSequence(start, end).toString()) </pre>
jaroslav@1258:      *
jaroslav@1258:      * @param  csq
jaroslav@1258:      *         The character sequence from which a subsequence will be
jaroslav@1258:      *         appended.  If <tt>csq</tt> is <tt>null</tt>, then characters
jaroslav@1258:      *         will be appended as if <tt>csq</tt> contained the four
jaroslav@1258:      *         characters <tt>"null"</tt>.
jaroslav@1258:      *
jaroslav@1258:      * @param  start
jaroslav@1258:      *         The index of the first character in the subsequence
jaroslav@1258:      *
jaroslav@1258:      * @param  end
jaroslav@1258:      *         The index of the character following the last character in the
jaroslav@1258:      *         subsequence
jaroslav@1258:      *
jaroslav@1258:      * @return  This output stream
jaroslav@1258:      *
jaroslav@1258:      * @throws  IndexOutOfBoundsException
jaroslav@1258:      *          If <tt>start</tt> or <tt>end</tt> are negative, <tt>start</tt>
jaroslav@1258:      *          is greater than <tt>end</tt>, or <tt>end</tt> is greater than
jaroslav@1258:      *          <tt>csq.length()</tt>
jaroslav@1258:      *
jaroslav@1258:      * @since  1.5
jaroslav@1258:      */
jaroslav@1258:     public PrintStream append(CharSequence csq, int start, int end) {
jaroslav@1258:         CharSequence cs = (csq == null ? "null" : csq);
jaroslav@1258:         write(cs.subSequence(start, end).toString());
jaroslav@1258:         return this;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258:     /**
jaroslav@1258:      * Appends the specified character to this output stream.
jaroslav@1258:      *
jaroslav@1258:      * <p> An invocation of this method of the form <tt>out.append(c)</tt>
jaroslav@1258:      * behaves in exactly the same way as the invocation
jaroslav@1258:      *
jaroslav@1258:      * <pre>
jaroslav@1258:      *     out.print(c) </pre>
jaroslav@1258:      *
jaroslav@1258:      * @param  c
jaroslav@1258:      *         The 16-bit character to append
jaroslav@1258:      *
jaroslav@1258:      * @return  This output stream
jaroslav@1258:      *
jaroslav@1258:      * @since  1.5
jaroslav@1258:      */
jaroslav@1258:     public PrintStream append(char c) {
jaroslav@1258:         print(c);
jaroslav@1258:         return this;
jaroslav@1258:     }
jaroslav@1258: 
jaroslav@1258: }