/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2008, Red Hat Middleware LLC or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Middleware LLC.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program 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 distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*
*/
package org.hibernate.hql.internal.classic;
import java.util.StringTokenizer;
import org.hibernate.QueryException;
import org.hibernate.internal.util.StringHelper;
public final class ParserHelper {
public static final String HQL_VARIABLE_PREFIX = ":";
public static final String HQL_SEPARATORS = " \n\r\f\t,()=<>&|+-=/*'^![]#~\\";
//NOTICE: no " or . since they are part of (compound) identifiers
public static final String PATH_SEPARATORS = ".";
public static boolean isWhitespace(String str) {
return StringHelper.WHITESPACE.indexOf( str ) > -1;
}
private ParserHelper() {
//cannot instantiate
}
public static void parse(Parser p, String text, String seperators, QueryTranslatorImpl q) throws QueryException {
StringTokenizer tokens = new StringTokenizer( text, seperators, true );
p.start( q );
while ( tokens.hasMoreElements() ) p.token( tokens.nextToken(), q );
p.end( q );
}
}