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 find
021 */
022package lucee.runtime.functions.string;
023
024import lucee.runtime.PageContext;
025import lucee.runtime.exp.FunctionException;
026import lucee.runtime.exp.PageException;
027import lucee.runtime.functions.BIF;
028import lucee.runtime.op.Caster;
029
030public final class Find extends BIF {
031
032        private static final long serialVersionUID = 1399049740954864771L;
033
034        public static double call(PageContext pc , String sub, String str) {
035                return str.indexOf(sub)+1;
036        }
037        public static double call(PageContext pc , String sub, String str, double number) {
038                if(sub.length()==0) return (int) number;
039                return str.indexOf(sub,(int)number-1)+1;
040        }
041
042    @Override
043        public Object invoke(PageContext pc, Object[] args) throws PageException {
044        if(args.length==2)
045                        return call(pc, Caster.toString(args[0]), Caster.toString(args[1]));
046        if(args.length==3)
047                        return call(pc, Caster.toString(args[0]), Caster.toString(args[1]), Caster.toDoubleValue(args[2]));
048        
049                throw new FunctionException(pc, "Find", 2, 3, args.length);
050        }
051}