/*********************************************************************
*
* Copyright (C) 2003 Andrew Khan
*
* 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, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
***************************************************************************/
package jxl.biff.formula;
import jxl.common.Logger;
import jxl.WorkbookSettings;
/**
* Class used to hold a function when reading it in from a string. At this
* stage it is unknown whether it is a BuiltInFunction or a VariableArgFunction
*/
class StringFunction extends StringParseItem
{
/**
* The logger
*/
private static Logger logger = Logger.getLogger(StringFunction.class);
/**
* The function
*/
private Function function;
/**
* The function string
*/
private String functionString;
/**
* Constructor
*
* @param s the lexically parsed stirng
*/
StringFunction(String s)
{
functionString = s.substring(0, s.length() - 1);
}
/**
* Accessor for the function
*
* @param ws the workbook settings
* @return the function
*/
Function getFunction(WorkbookSettings ws)
{
if (function == null)
{
function = Function.getFunction(functionString, ws);
}
return function;
}
}
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