/**
* @param sheetIden may be <code>null</code>
* @param part1
* @param part2 may be <code>null</code>
*/
private ParseNode createAreaRefParseNode(
SheetIdentifier sheetIden, SimpleRangePart part1, SimpleRangePart part2)
throws FormulaParseException {
int extIx;
if (sheetIden == null) {
extIx = Integer.MIN_VALUE;
} else {
String sName = sheetIden.getSheetIdentifier().getName();
if (sheetIden.getBookName() == null) {
extIx = _book.getExternalSheetIndex(sName);
} else {
extIx = _book.getExternalSheetIndex(sheetIden.getBookName(), sName);
}
}
Ptg ptg;
if (part2 == null) {
CellReference cr = part1.getCellReference();
if (sheetIden == null) {
ptg = new RefPtg(cr);
} else {
ptg = new Ref3DPtg(cr, extIx);
}
} else {
AreaReference areaRef = createAreaRef(part1, part2);
if (sheetIden == null) {
ptg = new AreaPtg(areaRef);
} else {
ptg = new Area3DPtg(areaRef, extIx);
}
}
return new ParseNode(ptg);
}
/**
* Parses area refs (things which could be the operand of ':') and simple factors Examples
*
* <pre>
* A$1
* $A$1 : $B1
* A1 ....... C2
* Sheet1 !$A1
* a..b!A1
* 'my sheet'!A1
* .my.sheet!A1
* my.named..range.
* foo.bar(123.456, "abc")
* 123.456
* "abc"
* true
* </pre>
*/
private ParseNode parseRangeable() {
SkipWhite();
int savePointer = _pointer;
SheetIdentifier sheetIden = parseSheetName();
if (sheetIden == null) {
resetPointer(savePointer);
} else {
SkipWhite();
savePointer = _pointer;
}
SimpleRangePart part1 = parseSimpleRangePart();
if (part1 == null) {
if (sheetIden != null) {
throw new FormulaParseException(
"Cell reference expected after sheet name at index " + _pointer + ".");
}
return parseNonRange(savePointer);
}
boolean whiteAfterPart1 = IsWhite(look);
if (whiteAfterPart1) {
SkipWhite();
}
if (look == ':') {
int colonPos = _pointer;
GetChar();
SkipWhite();
SimpleRangePart part2 = parseSimpleRangePart();
if (part2 != null && !part1.isCompatibleForArea(part2)) {
// second part is not compatible with an area ref e.g. S!A1:S!B2
// where S might be a sheet name (that looks like a column name)
part2 = null;
}
if (part2 == null) {
// second part is not compatible with an area ref e.g. A1:OFFSET(B2, 1, 2)
// reset and let caller use explicit range operator
resetPointer(colonPos);
if (!part1.isCell()) {
String prefix;
if (sheetIden == null) {
prefix = "";
} else {
prefix = "'" + sheetIden.getSheetIdentifier().getName() + '!';
}
throw new FormulaParseException(prefix + part1.getRep() + "' is not a proper reference.");
}
return createAreaRefParseNode(sheetIden, part1, part2);
}
return createAreaRefParseNode(sheetIden, part1, part2);
}
if (look == '.') {
GetChar();
int dotCount = 1;
while (look == '.') {
dotCount++;
GetChar();
}
boolean whiteBeforePart2 = IsWhite(look);
SkipWhite();
SimpleRangePart part2 = parseSimpleRangePart();
String part1And2 = _formulaString.substring(savePointer - 1, _pointer - 1);
if (part2 == null) {
if (sheetIden != null) {
throw new FormulaParseException(
"Complete area reference expected after sheet name at index " + _pointer + ".");
}
return parseNonRange(savePointer);
}
if (whiteAfterPart1 || whiteBeforePart2) {
if (part1.isRowOrColumn() || part2.isRowOrColumn()) {
// "A .. B" not valid syntax for "A:B"
// and there's no other valid expression that fits this grammar
throw new FormulaParseException(
"Dotted range (full row or column) expression '"
+ part1And2
+ "' must not contain whitespace.");
}
return createAreaRefParseNode(sheetIden, part1, part2);
}
if (dotCount == 1 && part1.isRow() && part2.isRow()) {
// actually, this is looking more like a number
return parseNonRange(savePointer);
}
if (part1.isRowOrColumn() || part2.isRowOrColumn()) {
if (dotCount != 2) {
throw new FormulaParseException(
"Dotted range (full row or column) expression '"
+ part1And2
+ "' must have exactly 2 dots.");
}
}
return createAreaRefParseNode(sheetIden, part1, part2);
}
if (part1.isCell() && isValidCellReference(part1.getRep())) {
return createAreaRefParseNode(sheetIden, part1, null);
}
if (sheetIden != null) {
throw new FormulaParseException(
"Second part of cell reference expected after sheet name at index " + _pointer + ".");
}
return parseNonRange(savePointer);
}