The Microsoft Excel File Format - OpenOffice.org

3.2 Token Classes
• Current position is a function parameter expecting a value class token (for example the parameter of the ABS
function), or it is the root level of a cell type formula or an array type formula (for example the return value of the
outer function in a cell formula, a shared formula, or an array formula):
▪ If the forced array class state is set, all tokens will be changed to array class, otherwise to value class.
Examples for token transformation, when value class is expected without forced array class state:
• In the cell formula =ABS(A1), the tRefR token is changed to value class (tRefV), and the tFuncV(ABS)
token keeps its value class (root level of a cell function).
• In the cell formula =ABS(PI()), the tFuncV(PI) token keeps unchanged.
• In the cell formula =ABS({1}), the tArrayA token is changed to value class (tArrayV).
Examples for token transformation, when value class is expected with forced array class state:
• In the name formula =ABS(A1), the tRefR token is changed to array class (tRefA, a name type formula sets
the forced array class state for all parameters of functions returning a value).
• In the cell formula =MDETERM(ABS(A1)), the tRefR token is set to array class (tRefA, forced array class
in MDETERM function parameter).
• Current position is a function parameter expecting an array class token (for example the parameter of the MDETERM
function):
▪ All tokens are changed to array class.
Examples for token transformation, when array class is expected:
• In the formula =MDETERM(A1), the tRefR token is changed to array class (tRefA).
• In the formula =MDETERM(PI()), the tFuncV(PI) token is changed to array class (tFuncA).
• In the formula =MDETERM({1}), the tArrayA token keeps unchanged.
3.2.5 Binary Reference Operators
The binary reference operators tIsect (➜3.6.13), tList (➜3.6.14), and tRange (➜3.6.15) are always encapsulated into
reference subexpression tokens (for instance tMemArea, ➜3.9.4, or tMemFunc, ➜3.9.7). These tokens will change their
token class, but the operands of the reference operators will not be changed. Because these operators require reference
operands (constant references or functions returning a reference), the actual operands of these operators always have
reference class.
Example: The ABS function in the cell formula =ABS(A1 A1) expects value class for its parameter. The intersection
operator tIsect and its operands are encapsulated into a tMemAreaR token, which is changed to value
class in cell formulas. The tRefR tokens of the intersection operator are not changed.
The resulting token array of this formula is:
tMemAreaV, tRefR(A1), tRefR(A1), tIsect, tFuncV(ABS).
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