/**
* Parses the sublist of tokens. In most cases this will equate to
* the full list
*
* @param len the length of the subexpression to parse
* @exception FormulaException
*/
private void parseSubExpression(int len)
{
int tokenVal = 0;
Token t = null;
// Indicates that we are parsing the incredibly complicated and
// hacky if construct that MS saw fit to include, the gits
Stack<ParseItem> ifStack = new Stack<ParseItem>();
// The end position of the sub-expression
int endpos = pos + len;
while (pos < endpos)
{
tokenVal = tokenData[pos];
pos++;
t = Token.getToken(tokenVal);
if (t == Token.UNKNOWN)
{
throw new FormulaException
(FormulaException.UNRECOGNIZED_TOKEN,tokenVal);
}
Assert.verify(t != Token.UNKNOWN);
// Operands
if (t == Token.REF)
{
CellReference cr = new CellReference(relativeTo);
pos += cr.read(tokenData,pos);
tokenStack.Push(cr);
}
else if (t == Token.REFERR)
{
CellReferenceError cr = new CellReferenceError();
pos += cr.read(tokenData,pos);
tokenStack.Push(cr);
}
else if (t == Token.ERR)
{
ErrorConstant ec = new ErrorConstant();
pos += ec.read(tokenData,pos);
tokenStack.Push(ec);
}
else if (t == Token.REFV)
{
SharedFormulaCellReference cr =
new SharedFormulaCellReference(relativeTo);
pos += cr.read(tokenData,pos);
tokenStack.Push(cr);
}
else if (t == Token.REF3D)
{
CellReference3d cr = new CellReference3d(relativeTo,workbook);
pos += cr.read(tokenData,pos);
tokenStack.Push(cr);
}
else if (t == Token.AREA)
{
Area a = new Area();
pos += a.read(tokenData,pos);
tokenStack.Push(a);
}
else if (t == Token.AREAV)
{
SharedFormulaArea a = new SharedFormulaArea(relativeTo);
pos += a.read(tokenData,pos);
tokenStack.Push(a);
}
else if (t == Token.AREA3D)
{
Area3d a = new Area3d(workbook);
pos += a.read(tokenData,pos);
tokenStack.Push(a);
}
else if (t == Token.NAME)
{
Name n = new Name();
pos += n.read(tokenData,pos);
n.setParseContext(parseContext);
tokenStack.Push(n);
}
else if (t == Token.NAMED_RANGE)
{
NameRange nr = new NameRange(nameTable);
pos += nr.read(tokenData,pos);
nr.setParseContext(parseContext);
tokenStack.Push(nr);
}
else if (t == Token.INTEGER)
{
IntegerValue i = new IntegerValue();
pos += i.read(tokenData,pos);
tokenStack.Push(i);
}
else if (t == Token.DOUBLE)
{
DoubleValue d = new DoubleValue();
pos += d.read(tokenData,pos);
tokenStack.Push(d);
}
else if (t == Token.BOOL)
{
BooleanValue bv = new BooleanValue();
pos += bv.read(tokenData,pos);
tokenStack.Push(bv);
}
else if (t == Token.STRING)
{
StringValue sv = new StringValue(settings);
pos += sv.read(tokenData,pos);
tokenStack.Push(sv);
}
else if (t == Token.MISSING_ARG)
{
MissingArg ma = new MissingArg();
pos += ma.read(tokenData,pos);
tokenStack.Push(ma);
}
// Unary Operators
else if (t == Token.UNARY_PLUS)
{
UnaryPlus up = new UnaryPlus();
pos += up.read(tokenData,pos);
addOperator(up);
}
else if (t == Token.UNARY_MINUS)
{
UnaryMinus um = new UnaryMinus();
pos += um.read(tokenData,pos);
addOperator(um);
}
else if (t == Token.PERCENT)
{
Percent p = new Percent();
pos += p.read(tokenData,pos);
addOperator(p);
}
// Binary Operators
else if (t == Token.SUBTRACT)
{
Subtract s = new Subtract();
pos += s.read(tokenData,pos);
addOperator(s);
}
else if (t == Token.ADD)
{
Add s = new Add();
pos += s.read(tokenData,pos);
addOperator(s);
}
else if (t == Token.MULTIPLY)
{
Multiply s = new Multiply();
pos += s.read(tokenData,pos);
addOperator(s);
}
else if (t == Token.DIVIDE)
{
Divide s = new Divide();
pos += s.read(tokenData,pos);
addOperator(s);
}
else if (t == Token.CONCAT)
{
Concatenate c = new Concatenate();
pos += c.read(tokenData,pos);
addOperator(c);
}
else if (t == Token.POWER)
{
Power p = new Power();
pos += p.read(tokenData,pos);
addOperator(p);
}
else if (t == Token.LESS_THAN)
{
LessThan lt = new LessThan();
pos += lt.read(tokenData,pos);
addOperator(lt);
}
else if (t == Token.LESS_EQUAL)
{
LessEqual lte = new LessEqual();
pos += lte.read(tokenData,pos);
addOperator(lte);
}
else if (t == Token.GREATER_THAN)
{
GreaterThan gt = new GreaterThan();
pos += gt.read(tokenData,pos);
addOperator(gt);
}
else if (t == Token.GREATER_EQUAL)
{
GreaterEqual gte = new GreaterEqual();
pos += gte.read(tokenData,pos);
addOperator(gte);
}
else if (t == Token.NOT_EQUAL)
{
NotEqual ne = new NotEqual();
pos += ne.read(tokenData,pos);
addOperator(ne);
}
else if (t == Token.EQUAL)
{
Equal e = new Equal();
pos += e.read(tokenData,pos);
addOperator(e);
}
else if (t == Token.PARENTHESIS)
{
Parenthesis p = new Parenthesis();
pos += p.read(tokenData,pos);
addOperator(p);
}
// Functions
else if (t == Token.ATTRIBUTE)
{
Attribute a = new Attribute(settings);
pos += a.read(tokenData,pos);
if (a.isSum())
addOperator(a);
else if (a.isIf())
{
// Add it to a special stack for ifs
ifStack.Push(a);
}
}
else if (t == Token.FUNCTION)
{
BuiltInFunction bif = new BuiltInFunction(settings);
pos += bif.read(tokenData,pos);
addOperator(bif);
}
else if (t == Token.FUNCTIONVARARG)
{
VariableArgFunction vaf = new VariableArgFunction(settings);
pos += vaf.read(tokenData,pos);
if (vaf.getFunction() != Function.ATTRIBUTE)
addOperator(vaf);
else
{
// This is part of an IF function. Get the operands, but then
// add it to the top of the if stack
vaf.getOperands(tokenStack);
Attribute ifattr = null;
if (ifStack.Count == 0)
ifattr = new Attribute(settings);
else
ifattr = (Attribute)ifStack.Pop();
ifattr.setIfConditions(vaf);
tokenStack.Push(ifattr);
}
}
// Other things
else if (t == Token.MEM_FUNC)
{
MemFunc memFunc = new MemFunc();
handleMemoryFunction(memFunc);
}
else if (t == Token.MEM_AREA)
{
MemArea memArea = new MemArea();
handleMemoryFunction(memArea);
}
}
}
/**
* Handles the case when parsing a string when a token is a function
*
* @param sf the string function
* @param i the token iterator
* @param stack the parse tree stack
* @exception FormulaException if an error occurs
*/
private void handleFunction(StringFunction sf,IEnumerator<ParseItem> i,Stack<ParseItem> stack)
{
ParseItem pi2 = parseCurrent(i);
// If the function is unknown, then throw an error
if (sf.getFunction(settings) == Function.UNKNOWN)
throw new FormulaException(FormulaException.UNRECOGNIZED_FUNCTION);
// First check for possible optimized functions and possible
// use of the Attribute token
if (sf.getFunction(settings) == Function.SUM && arguments == null)
{
// this is handled by an attribute
Attribute a = new Attribute(sf,settings);
a.add(pi2);
stack.Push(a);
return;
}
if (sf.getFunction(settings) == Function.IF)
{
// this is handled by an attribute
Attribute a = new Attribute(sf,settings);
// Add in the if conditions as a var arg function in
// the correct order
VariableArgFunction vaf = new VariableArgFunction(settings);
object [] items = arguments.ToArray();
for (int j = 0; j < items.Length; j++)
{
ParseItem pi3 = (ParseItem)items[j];
vaf.add(pi3);
}
a.setIfConditions(vaf);
stack.Push(a);
return;
}
int newNumArgs;
// Function cannot be optimized. See if it is a variable argument
// function or not
if (sf.getFunction(settings).getNumArgs() == 0xff)
{
// If the arg stack has not been initialized, it means
// that there was only one argument, which is the
// returned parse item
if (arguments == null)
{
int numArgs = pi2 != null ? 1 : 0;
VariableArgFunction vaf = new VariableArgFunction(sf.getFunction(settings),numArgs,settings);
if (pi2 != null)
vaf.add(pi2);
stack.Push(vaf);
}
else
{
// Add the args to the function in the correct order
newNumArgs = arguments.Count;
VariableArgFunction vaf = new VariableArgFunction(sf.getFunction(settings),newNumArgs,settings);
ParseItem[] args = new ParseItem[newNumArgs];
for (int j = 0; j < newNumArgs; j++)
{
ParseItem pi3 = (ParseItem)arguments.Pop();
args[newNumArgs - j - 1] = pi3;
}
for (int j = 0; j < args.Length; j++)
vaf.add(args[j]);
stack.Push(vaf);
arguments.Clear();
arguments = null;
}
return;
}
// Function is a standard built in function
BuiltInFunction bif = new BuiltInFunction(sf.getFunction(settings),settings);
newNumArgs = sf.getFunction(settings).getNumArgs();
if (newNumArgs == 1)
{
// only one item which is the returned ParseItem
bif.add(pi2);
}
else
{
if ((arguments == null && newNumArgs != 0) ||
(arguments != null && newNumArgs != arguments.Count))
{
throw new FormulaException(FormulaException.INCORRECT_ARGUMENTS);
}
// multiple arguments so go to the arguments stack.
// Unlike the variable argument function, the args are
// stored in reverse order
object[] items = arguments.ToArray();
for (int j = 0; j < newNumArgs; j++)
{
ParseItem pi3 = (ParseItem)items[j];
bif.add(pi3);
}
}
stack.Push(bif);
}
/**
* Parses the sublist of tokens. In most cases this will equate to
* the full list
*
* @param len the length of the subexpression to parse
* @exception FormulaException
*/
private void parseSubExpression(int len)
{
int tokenVal = 0;
Token t = null;
// Indicates that we are parsing the incredibly complicated and
// hacky if construct that MS saw fit to include, the gits
Stack <ParseItem> ifStack = new Stack <ParseItem>();
// The end position of the sub-expression
int endpos = pos + len;
while (pos < endpos)
{
tokenVal = tokenData[pos];
pos++;
t = Token.getToken(tokenVal);
if (t == Token.UNKNOWN)
{
throw new FormulaException
(FormulaException.UNRECOGNIZED_TOKEN, tokenVal);
}
Assert.verify(t != Token.UNKNOWN);
// Operands
if (t == Token.REF)
{
CellReference cr = new CellReference(relativeTo);
pos += cr.read(tokenData, pos);
tokenStack.Push(cr);
}
else if (t == Token.REFERR)
{
CellReferenceError cr = new CellReferenceError();
pos += cr.read(tokenData, pos);
tokenStack.Push(cr);
}
else if (t == Token.ERR)
{
ErrorConstant ec = new ErrorConstant();
pos += ec.read(tokenData, pos);
tokenStack.Push(ec);
}
else if (t == Token.REFV)
{
SharedFormulaCellReference cr =
new SharedFormulaCellReference(relativeTo);
pos += cr.read(tokenData, pos);
tokenStack.Push(cr);
}
else if (t == Token.REF3D)
{
CellReference3d cr = new CellReference3d(relativeTo, workbook);
pos += cr.read(tokenData, pos);
tokenStack.Push(cr);
}
else if (t == Token.AREA)
{
Area a = new Area();
pos += a.read(tokenData, pos);
tokenStack.Push(a);
}
else if (t == Token.AREAV)
{
SharedFormulaArea a = new SharedFormulaArea(relativeTo);
pos += a.read(tokenData, pos);
tokenStack.Push(a);
}
else if (t == Token.AREA3D)
{
Area3d a = new Area3d(workbook);
pos += a.read(tokenData, pos);
tokenStack.Push(a);
}
else if (t == Token.NAME)
{
Name n = new Name();
pos += n.read(tokenData, pos);
n.setParseContext(parseContext);
tokenStack.Push(n);
}
else if (t == Token.NAMED_RANGE)
{
NameRange nr = new NameRange(nameTable);
pos += nr.read(tokenData, pos);
nr.setParseContext(parseContext);
tokenStack.Push(nr);
}
else if (t == Token.INTEGER)
{
IntegerValue i = new IntegerValue();
pos += i.read(tokenData, pos);
tokenStack.Push(i);
}
else if (t == Token.DOUBLE)
{
DoubleValue d = new DoubleValue();
pos += d.read(tokenData, pos);
tokenStack.Push(d);
}
else if (t == Token.BOOL)
{
BooleanValue bv = new BooleanValue();
pos += bv.read(tokenData, pos);
tokenStack.Push(bv);
}
else if (t == Token.STRING)
{
StringValue sv = new StringValue(settings);
pos += sv.read(tokenData, pos);
tokenStack.Push(sv);
}
else if (t == Token.MISSING_ARG)
{
MissingArg ma = new MissingArg();
pos += ma.read(tokenData, pos);
tokenStack.Push(ma);
}
// Unary Operators
else if (t == Token.UNARY_PLUS)
{
UnaryPlus up = new UnaryPlus();
pos += up.read(tokenData, pos);
addOperator(up);
}
else if (t == Token.UNARY_MINUS)
{
UnaryMinus um = new UnaryMinus();
pos += um.read(tokenData, pos);
addOperator(um);
}
else if (t == Token.PERCENT)
{
Percent p = new Percent();
pos += p.read(tokenData, pos);
addOperator(p);
}
// Binary Operators
else if (t == Token.SUBTRACT)
{
Subtract s = new Subtract();
pos += s.read(tokenData, pos);
addOperator(s);
}
else if (t == Token.ADD)
{
Add s = new Add();
pos += s.read(tokenData, pos);
addOperator(s);
}
else if (t == Token.MULTIPLY)
{
Multiply s = new Multiply();
pos += s.read(tokenData, pos);
addOperator(s);
}
else if (t == Token.DIVIDE)
{
Divide s = new Divide();
pos += s.read(tokenData, pos);
addOperator(s);
}
else if (t == Token.CONCAT)
{
Concatenate c = new Concatenate();
pos += c.read(tokenData, pos);
addOperator(c);
}
else if (t == Token.POWER)
{
Power p = new Power();
pos += p.read(tokenData, pos);
addOperator(p);
}
else if (t == Token.LESS_THAN)
{
LessThan lt = new LessThan();
pos += lt.read(tokenData, pos);
addOperator(lt);
}
else if (t == Token.LESS_EQUAL)
{
LessEqual lte = new LessEqual();
pos += lte.read(tokenData, pos);
addOperator(lte);
}
else if (t == Token.GREATER_THAN)
{
GreaterThan gt = new GreaterThan();
pos += gt.read(tokenData, pos);
addOperator(gt);
}
else if (t == Token.GREATER_EQUAL)
{
GreaterEqual gte = new GreaterEqual();
pos += gte.read(tokenData, pos);
addOperator(gte);
}
else if (t == Token.NOT_EQUAL)
{
NotEqual ne = new NotEqual();
pos += ne.read(tokenData, pos);
addOperator(ne);
}
else if (t == Token.EQUAL)
{
Equal e = new Equal();
pos += e.read(tokenData, pos);
addOperator(e);
}
else if (t == Token.PARENTHESIS)
{
Parenthesis p = new Parenthesis();
pos += p.read(tokenData, pos);
addOperator(p);
}
// Functions
else if (t == Token.ATTRIBUTE)
{
Attribute a = new Attribute(settings);
pos += a.read(tokenData, pos);
if (a.isSum())
{
addOperator(a);
}
else if (a.isIf())
{
// Add it to a special stack for ifs
ifStack.Push(a);
}
}
else if (t == Token.FUNCTION)
{
BuiltInFunction bif = new BuiltInFunction(settings);
pos += bif.read(tokenData, pos);
addOperator(bif);
}
else if (t == Token.FUNCTIONVARARG)
{
VariableArgFunction vaf = new VariableArgFunction(settings);
pos += vaf.read(tokenData, pos);
if (vaf.getFunction() != Function.ATTRIBUTE)
{
addOperator(vaf);
}
else
{
// This is part of an IF function. Get the operands, but then
// add it to the top of the if stack
vaf.getOperands(tokenStack);
Attribute ifattr = null;
if (ifStack.Count == 0)
{
ifattr = new Attribute(settings);
}
else
{
ifattr = (Attribute)ifStack.Pop();
}
ifattr.setIfConditions(vaf);
tokenStack.Push(ifattr);
}
}
// Other things
else if (t == Token.MEM_FUNC)
{
MemFunc memFunc = new MemFunc();
handleMemoryFunction(memFunc);
}
else if (t == Token.MEM_AREA)
{
MemArea memArea = new MemArea();
handleMemoryFunction(memArea);
}
}
}
/**
* Handles the case when parsing a string when a token is a function
*
* @param sf the string function
* @param i the token iterator
* @param stack the parse tree stack
* @exception FormulaException if an error occurs
*/
private void handleFunction(StringFunction sf, IEnumerator <ParseItem> i, Stack <ParseItem> stack)
{
ParseItem pi2 = parseCurrent(i);
// If the function is unknown, then throw an error
if (sf.getFunction(settings) == Function.UNKNOWN)
{
throw new FormulaException(FormulaException.UNRECOGNIZED_FUNCTION);
}
// First check for possible optimized functions and possible
// use of the Attribute token
if (sf.getFunction(settings) == Function.SUM && arguments == null)
{
// this is handled by an attribute
Attribute a = new Attribute(sf, settings);
a.add(pi2);
stack.Push(a);
return;
}
if (sf.getFunction(settings) == Function.IF)
{
// this is handled by an attribute
Attribute a = new Attribute(sf, settings);
// Add in the if conditions as a var arg function in
// the correct order
VariableArgFunction vaf = new VariableArgFunction(settings);
object [] items = arguments.ToArray();
for (int j = 0; j < items.Length; j++)
{
ParseItem pi3 = (ParseItem)items[j];
vaf.add(pi3);
}
a.setIfConditions(vaf);
stack.Push(a);
return;
}
int newNumArgs;
// Function cannot be optimized. See if it is a variable argument
// function or not
if (sf.getFunction(settings).getNumArgs() == 0xff)
{
// If the arg stack has not been initialized, it means
// that there was only one argument, which is the
// returned parse item
if (arguments == null)
{
int numArgs = pi2 != null ? 1 : 0;
VariableArgFunction vaf = new VariableArgFunction(sf.getFunction(settings), numArgs, settings);
if (pi2 != null)
{
vaf.add(pi2);
}
stack.Push(vaf);
}
else
{
// Add the args to the function in the correct order
newNumArgs = arguments.Count;
VariableArgFunction vaf = new VariableArgFunction(sf.getFunction(settings), newNumArgs, settings);
ParseItem[] args = new ParseItem[newNumArgs];
for (int j = 0; j < newNumArgs; j++)
{
ParseItem pi3 = (ParseItem)arguments.Pop();
args[newNumArgs - j - 1] = pi3;
}
for (int j = 0; j < args.Length; j++)
{
vaf.add(args[j]);
}
stack.Push(vaf);
arguments.Clear();
arguments = null;
}
return;
}
// Function is a standard built in function
BuiltInFunction bif = new BuiltInFunction(sf.getFunction(settings), settings);
newNumArgs = sf.getFunction(settings).getNumArgs();
if (newNumArgs == 1)
{
// only one item which is the returned ParseItem
bif.add(pi2);
}
else
{
if ((arguments == null && newNumArgs != 0) ||
(arguments != null && newNumArgs != arguments.Count))
{
throw new FormulaException(FormulaException.INCORRECT_ARGUMENTS);
}
// multiple arguments so go to the arguments stack.
// Unlike the variable argument function, the args are
// stored in reverse order
object[] items = arguments.ToArray();
for (int j = 0; j < newNumArgs; j++)
{
ParseItem pi3 = (ParseItem)items[j];
bif.add(pi3);
}
}
stack.Push(bif);
}
