/*
* reserved comment block
* DO NOT REMOVE OR ALTER!
*/
/*
* Copyright 1999-2004 The Apache Software Foundation.
*
* Licensed 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
*
* 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 com.sun.org.apache.regexp.internal;
/**
* This is a class that contains utility helper methods for this package.
*
* @author <a href="mailto:jonl@muppetlabs.com">Jonathan Locke</a>
* @version $Id: REUtil.java,v 1.1.2.1 2005/08/01 00:02:56 jeffsuttor Exp $
*/
public class REUtil
{
/** complex: */
private static final String complexPrefix = "complex:";
/**
* Creates a regular expression, permitting simple or complex syntax
* @param expression The expression, beginning with a prefix if it's complex or
* having no prefix if it's simple
* @param matchFlags Matching style flags
* @return The regular expression object
* @exception RESyntaxException thrown in case of error
*/
public static RE createRE(String expression, int matchFlags) throws RESyntaxException
{
if (expression.startsWith(complexPrefix))
{
return new RE(expression.substring(complexPrefix.length()), matchFlags);
}
return new RE(RE.simplePatternToFullRegularExpression(expression), matchFlags);
}
/**
* Creates a regular expression, permitting simple or complex syntax
* @param expression The expression, beginning with a prefix if it's complex or
* having no prefix if it's simple
* @return The regular expression object
* @exception RESyntaxException thrown in case of error
*/
public static RE createRE(String expression) throws RESyntaxException
{
return createRE(expression, RE.MATCH_NORMAL);
}
}