/*
 * Copyright 2011 Specto Technologies Inc. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
package com.spectotechnologies.util;

/**
 * @author Alexandre Lavoie
 */
public class BlankRemover
{
	/**
	 * Remove leading whitespace
	 * 
	 * @param p_sSource
	 * @return 
	 */
	public static String ltrim(String p_sSource)
	{
		return p_sSource.replaceAll("^\\s+","");
	}

	/**
	 * Remove trailing whitespace
	 * 
	 * @param p_sSource
	 * @return 
	 */
	public static String rtrim(String p_sSource)
	{
		return p_sSource.replaceAll("\\s+$","");
	}

	/**
	 * Replace multiple whitespaces between words with single blank
	 * 
	 * @param p_sSource
	 * @return 
	 */
	public static String itrim(String p_sSource)
	{
		return p_sSource.replaceAll("\\b\\s{2,}\\b"," ");
	}

	/**
	 * Remove all superfluous whitespaces in source string
	 * 
	 * @param p_sSource
	 * @return 
	 */
	public static String trim(String p_sSource)
	{
		return itrim(ltrim(rtrim(p_sSource)));
	}
	
	/**
	 * Remove leading and trailing whitespace
	 * 
	 * @param source
	 * @return 
	 */
	public static String lrtrim(String p_sSource)
	{
		return ltrim(rtrim(p_sSource));
	}
}