001/**
002 *
003 * Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
004 *
005 * This library is free software; you can redistribute it and/or
006 * modify it under the terms of the GNU Lesser General Public
007 * License as published by the Free Software Foundation; either 
008 * version 2.1 of the License, or (at your option) any later version.
009 * 
010 * This library is distributed in the hope that it will be useful,
011 * but WITHOUT ANY WARRANTY; without even the implied warranty of
012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
013 * Lesser General Public License for more details.
014 * 
015 * You should have received a copy of the GNU Lesser General Public 
016 * License along with this library.  If not, see <http://www.gnu.org/licenses/>.
017 * 
018 **/
019/**
020 * Implements the CFML Function spanexcluding
021 */
022package lucee.runtime.functions.string;
023
024import java.util.StringTokenizer;
025
026import lucee.runtime.PageContext;
027import lucee.runtime.exp.FunctionException;
028import lucee.runtime.exp.PageException;
029import lucee.runtime.functions.BIF;
030import lucee.runtime.op.Caster;
031
032public final class SpanExcluding extends BIF {
033
034        private static final long serialVersionUID = -2597389089930732011L;
035
036        public static String call(PageContext pc , String str, String set) {
037        StringTokenizer stringtokenizer = new StringTokenizer(str, set);
038        
039        if(stringtokenizer.hasMoreTokens()){
040            String rtn = stringtokenizer.nextToken();
041            int i = str.indexOf(rtn);
042            if(i != 0)
043                return "";
044            return rtn;
045        } 
046        return "";
047    }
048
049    @Override
050        public Object invoke(PageContext pc, Object[] args) throws PageException {
051        if(args.length==2)
052                        return call(pc, Caster.toString(args[0]), Caster.toString(args[1]));
053        
054                throw new FunctionException(pc, "SpanExcluding", 2, 2, args.length);
055        }
056}