/**
*
* Copyright (c) 2014, the Railo Company Ltd. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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 library. If not, see <http://www.gnu.org/licenses/>.
*
**/
/**
* Implements the CFML Function listgetat
*/
package lucee.runtime.functions.list;
import lucee.runtime.PageContext;
import lucee.runtime.exp.FunctionException;
import lucee.runtime.exp.PageException;
import lucee.runtime.ext.function.BIF;
import lucee.runtime.op.Caster;
import lucee.runtime.type.util.ListUtil;
public final class ListGetAt extends BIF {
private static final long serialVersionUID = -8227074223983816122L;
public static String call(PageContext pc , String list, double posNumber) throws PageException {
return call(pc,list,posNumber,",",false);
}
public static String call(PageContext pc , String list, double posNumber, String delimiter) throws PageException {
return call(pc,list,posNumber,delimiter,false);
}
public static String call(PageContext pc , String list, double posNumber, String delimiter, boolean includeEmptyFields) throws PageException {
int pos=(int) posNumber;
String rtn = ListUtil.getAt(list,delimiter,pos-1,!includeEmptyFields,null);
if(rtn==null) throw new FunctionException(pc,"listGetAt",2,"posNumber","invalid string list index ["+pos+"]");
return rtn;
}
@Override
public Object invoke(PageContext pc, Object[] args) throws PageException {
if(args.length==2)
return call(pc, Caster.toString(args[0]), Caster.toDoubleValue(args[1]));
if(args.length==3)
return call(pc, Caster.toString(args[0]), Caster.toDoubleValue(args[1]), Caster.toString(args[2]));
if(args.length==4)
return call(pc, Caster.toString(args[0]), Caster.toDoubleValue(args[1]), Caster.toString(args[2]), Caster.toBooleanValue(args[3]));
throw new FunctionException(pc, "ListGetAt", 2, 4, args.length);
}
}