|
FormCalc includes a number of operators:
unary, multiplicative, additive, relational, equality, logical,
and the assignment operator.
Several of the FormCalc operators have an equivalent mnemonic
operator keyword. These keyword operators are useful whenever FormCalc
expressions are embedded in HTML and XML source text, where the
symbols less than (<), greater than (>), and ampersand (&)
have predefined meanings and must be escaped. The following table
lists all FormCalc operators, illustrating both the symbolic and
mnemonic forms where appropriate.
Operator type
|
Representations
|
|---|
Addition
|
+
|
Division
|
/
|
Equality
|
== eq
<> ne
|
Logical AND
|
& and
|
Logical OR
|
| or
|
Multiplication
|
*
|
Relational
|
< lt (less than)
> gt (greater
than)
<= le (less than or equal to)
>= ge (greater
than or equal to)
|
Subtraction
|
-
|
Unary
|
-
+
not
|
|
|
|
