super(format);
final int[] numPlaces = new int[1];
desc = CellFormatPart.parseFormat(format, CellFormatType.TEXT,
new PartHandler() {
public String handlePart(Matcher m, String part,
CellFormatType type, StringBuffer desc) {
if (part.equals("@")) {
numPlaces[0]++;
return "\u0000";