Android Open Source - android-chat-telnet C R L F Line Reader






From Project

Back to project page android-chat-telnet.

License

The source code is released under:

GNU Lesser General Public License

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Java Source Code

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *//from   www.  jav  a  2 s. c  o  m
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package org.apache.commons.net.io;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.Reader;

/**
 * CRLFLineReader implements a readLine() method that requires
 * exactly CRLF to terminate an input line.
 * This is required for IMAP, which allows bare CR and LF.
 *
 * @since 3.0
 */
public final class CRLFLineReader extends BufferedReader
{
    private static final char LF = '\n';
    private static final char CR = '\r';

    /**
     * Creates a CRLFLineReader that wraps an existing Reader
     * input source.
     * @param reader  The Reader input source.
     */
    public CRLFLineReader(Reader reader)
    {
        super(reader);
    }

    /**
     * Read a line of text.
     * A line is considered to be terminated by carriage return followed immediately by a linefeed.
     * This contrasts with BufferedReader which also allows other combinations.
     * @since 3.0
     */
    @Override
    public String readLine() throws IOException {
        StringBuilder sb = new StringBuilder();
        int intch;
        boolean prevWasCR = false;
        synchronized(lock) { // make thread-safe (hopefully!)
            while((intch = read()) != -1)
            {
                if (prevWasCR && intch == LF) {
                    return sb.substring(0, sb.length()-1);
                }
                if (intch == CR) {
                    prevWasCR = true;
                } else {
                    prevWasCR = false;
                }
                sb.append((char) intch);
            }
        }
        String string = sb.toString();
        if (string.length() == 0) { // immediate EOF
            return null;
        }
        return string;
    }
}




Java Source Code List

com.anarchy.anarchytelnet.AnarchyTelnet.java
com.anarchy.anarchytelnet.EnvoieMessage.java
com.anarchy.anarchytelnet.Main.java
com.anarchy.anarchytelnet.MessageReceiver.java
org.apache.commons.net.DatagramSocketClient.java
org.apache.commons.net.DatagramSocketFactory.java
org.apache.commons.net.DefaultDatagramSocketFactory.java
org.apache.commons.net.DefaultSocketFactory.java
org.apache.commons.net.MalformedServerReplyException.java
org.apache.commons.net.PrintCommandListener.java
org.apache.commons.net.ProtocolCommandEvent.java
org.apache.commons.net.ProtocolCommandListener.java
org.apache.commons.net.ProtocolCommandSupport.java
org.apache.commons.net.SocketClient.java
org.apache.commons.net.io.CRLFLineReader.java
org.apache.commons.net.io.CopyStreamAdapter.java
org.apache.commons.net.io.CopyStreamEvent.java
org.apache.commons.net.io.CopyStreamException.java
org.apache.commons.net.io.CopyStreamListener.java
org.apache.commons.net.io.DotTerminatedMessageReader.java
org.apache.commons.net.io.DotTerminatedMessageWriter.java
org.apache.commons.net.io.FromNetASCIIInputStream.java
org.apache.commons.net.io.FromNetASCIIOutputStream.java
org.apache.commons.net.io.SocketInputStream.java
org.apache.commons.net.io.SocketOutputStream.java
org.apache.commons.net.io.ToNetASCIIInputStream.java
org.apache.commons.net.io.ToNetASCIIOutputStream.java
org.apache.commons.net.io.Util.java
org.apache.commons.net.io.package-info.java
org.apache.commons.net.telnet.EchoOptionHandler.java
org.apache.commons.net.telnet.InvalidTelnetOptionException.java
org.apache.commons.net.telnet.SimpleOptionHandler.java
org.apache.commons.net.telnet.SuppressGAOptionHandler.java
org.apache.commons.net.telnet.TelnetClient.java
org.apache.commons.net.telnet.TelnetCommand.java
org.apache.commons.net.telnet.TelnetInputListener.java
org.apache.commons.net.telnet.TelnetInputStream.java
org.apache.commons.net.telnet.TelnetNotificationHandler.java
org.apache.commons.net.telnet.TelnetOptionHandler.java
org.apache.commons.net.telnet.TelnetOption.java
org.apache.commons.net.telnet.TelnetOutputStream.java
org.apache.commons.net.telnet.Telnet.java
org.apache.commons.net.telnet.TerminalTypeOptionHandler.java
org.apache.commons.net.telnet.WindowSizeOptionHandler.java
org.apache.commons.net.telnet.package-info.java
org.apache.commons.net.util.Base64.java
org.apache.commons.net.util.Charsets.java
org.apache.commons.net.util.KeyManagerUtils.java
org.apache.commons.net.util.ListenerList.java
org.apache.commons.net.util.SSLContextUtils.java
org.apache.commons.net.util.SubnetUtils.java
org.apache.commons.net.util.TrustManagerUtils.java
org.apache.commons.net.util.package-info.java
org.apache.commons.net.package-info.java