/*
* Copyright 2002-2009 the original author or authors.
*
* 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 net.sf.json.regexp;
/**
* Convenience utility for working withRegexpMatcher.<br>
*
* @author Andres Almiray <[email protected]>
*/
public class RegexpUtils {
private static String javaVersion = "1.3.1";
static{
javaVersion = System.getProperty( "java.version" );
}
/**
* Returns a RegexpMatcher that works in a specific environment.<br>
* When in a JVM 1.3.1 it will return a Perl5RegexpMatcher, if the JVM is
* younger (1.4+) it will return a JdkRegexpMatcher.
*/
public static RegexpMatcher getMatcher( String pattern ) {
if( isJDK13() ){
return new Perl5RegexpMatcher( pattern );
}else{
return new JdkRegexpMatcher( pattern );
}
}
/**
* Returns a RegexpMatcher that works in a specific environment.<br>
* When in a JVM 1.3.1 it will return a Perl5RegexpMatcher, if the JVM is
* younger (1.4+) it will return a JdkRegexpMatcher.
*/
public static RegexpMatcher getMatcher( String pattern, boolean multiline ) {
if( isJDK13() ){
return new Perl5RegexpMatcher( pattern, true );
}else{
return new JdkRegexpMatcher( pattern, true );
}
}
/**
* Queries the environment for the supported JDK version.
*/
public static boolean isJDK13() {
return javaVersion.indexOf( "1.3" ) != -1;
}
private RegexpUtils() {
}
}
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