EfficientBufferedReader.java

/*
 * @(#)BufferedReader.java	1.33 04/01/12
 *
 * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
 * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
 */

package edu.berkeley.nlp.util;

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


/**
 * 
 * @author adpauls
 */

public class EfficientBufferedReader extends BufferedReader
{


    
    public EfficientBufferedReader(Reader in)
	{
		super(in);
		// TODO Auto-generated constructor stub
	}

	/**
	 * Returns true if end of file reached. Otherwise reads a line in to the
	 * provided StringBuffer
	 * 
	 * @param sb
	 * @return
	 * @throws IOException
	 */
    public boolean readLineToBuffer(StringBuilder sb) throws IOException
    
    {
    	sb.delete(0,sb.length());
    	
    	while (true)
    	{
    		int c = read();
			if (c == -1) return true;
			else if (c == '\n') break;
			if (c != '\r') sb.append((char) c);
    	}
    	return false;
    }

}