/* ===============================================================================
*
* Part of the InfoGlue Content Management Platform (www.infoglue.org)
*
* ===============================================================================
*
* Copyright (C)
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License version 2, as published by the
* Free Software Foundation. See the file LICENSE.html for more information.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY, including 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
* this program; if not, write to the Free Software Foundation, Inc. / 59 Temple
* Place, Suite 330 / Boston, MA 02111-1307 / USA.
*
* ===============================================================================
*/
package org.infoglue.cms.util;
import org.apache.log4j.Logger;
import org.apache.oro.text.perl.MalformedPerl5PatternException;
import org.apache.oro.text.perl.Perl5Util;
import org.infoglue.cms.exception.Bug;
/**
* Utility class for regular expressions.
*
* @author Mattias Bogeblad
*/
public class RegexpHelper
{
// The string manager for this package.
private static final StringManager sm = StringManagerFactory.getSystemStringManager(Constants.PACKAGE_NAME);
// The logger for this class.
private static final Logger logger = Logger.getLogger(RegexpHelper.class.getName());
// The regexp delegate.
private static final Perl5Util regexpDelegate = new Perl5Util();
/**
* Static class; don't allow instantiation.
*/
private RegexpHelper()
{
}
/**
* Checks if the specified string contains the specified pattern.
*
* @param pattern the pattern to search for (perl5 native format).
* @param string the string to perform the search on.
* @return true if the string contains the pattern; false otherwise.
*/
public static synchronized boolean match(String pattern, String string)
{
logger.debug(sm.getString("regexp.match.info", pattern, string));
try
{
boolean result = regexpDelegate.match("/" + pattern + "/", string);
//getLogger().info("pattern:" + pattern);
//getLogger().info("string:" + string);
//getLogger().info("result:" + result);
return result;
}
catch (MalformedPerl5PatternException e)
{
throw new Bug(sm.getString("regexp.match.pattern_error", pattern), e);
}
catch (NullPointerException e)
{
throw new Bug(sm.getString("regexp.match.illegal_parameters_error", pattern, string), e);
}
}
}