/*********************************************************************
*
* 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;
/**
* A dummy implementation used for typing information when tokens
* are read when parsing strings. These are then stored by the parser before
* being re-stored as the appropriate RPN syntactic equivalent
*/
class StringParseItem extends ParseItem
{
/**
* Constructor
*/
protected StringParseItem()
{
}
/**
* Gets the string representation of this item. Does nothing here
*
* @param buf
*/
void getString(StringBuffer buf)
{
}
/**
* Gets the token representation of this item in RPN. Does nothing here
*
* @return the bytes applicable to this formula
*/
byte[] getBytes()
{
return new byte[0];
}
/**
* Default behaviour is to do nothing
*
* @param colAdjust the amount to add on to each relative cell reference
* @param rowAdjust the amount to add on to each relative row reference
*/
public void adjustRelativeCellReferences(int colAdjust, int rowAdjust)
{
}
/**
* Default behaviour is to do nothing
*
* @param sheetIndex the sheet on which the column was inserted
* @param col the column number which was inserted
* @param currentSheet TRUE if this formula is on the sheet in which the
* column was inserted, FALSE otherwise
*/
void columnInserted(int sheetIndex, int col, boolean currentSheet)
{
}
/**
* Called when a column is inserted on the specified sheet. Tells
* the formula parser to update all of its cell references beyond this
* column
*
* @param sheetIndex the sheet on which the column was removed
* @param col the column number which was removed
* @param currentSheet TRUE if this formula is on the sheet in which the
* column was inserted, FALSE otherwise
*/
void columnRemoved(int sheetIndex, int col, boolean currentSheet)
{
}
/**
* Called when a column is inserted on the specified sheet. Tells
* the formula parser to update all of its cell references beyond this
* column
*
* @param sheetIndex the sheet on which the row was inserted
* @param row the row number which was inserted
* @param currentSheet TRUE if this formula is on the sheet in which the
* column was inserted, FALSE otherwise
*/
void rowInserted(int sheetIndex, int row, boolean currentSheet)
{
}
/**
* Called when a column is inserted on the specified sheet. Tells
* the formula parser to update all of its cell references beyond this
* column
*
* @param sheetIndex the sheet on which the row was removed
* @param row the row number which was removed
* @param currentSheet TRUE if this formula is on the sheet in which the
* column was inserted, FALSE otherwise
*/
void rowRemoved(int sheetIndex, int row, boolean currentSheet)
{
}
/**
* If this formula was on an imported sheet, check that
* cell references to another sheet are warned appropriately
* Does nothing
*/
void handleImportedCellReferences()
{
}
}
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