WS Expressions

Expressions are evaluated by comparing the rendering of each side of the expression using the specified operator.

The following operators are available:

Operator	Description
=	Performs an equality comparison of the string rendering of both sides of the expression. If both terms contain the same string, the expression evaluates to true.
!=	The inverse of the equality comparison. If both terms are different strings, the expression evaluates to true.
<	Compares two numeric terms. Both sides must resolve to a numeric value; the expression evaluates to true if the first term is less than the second term.
<=	Compares two numeric terms. Both sides must resolve to a numeric value; the expression evaluates to true if the first term is less than or equal to the second term.
>	Compares two numeric terms. Both sides must resolve to a numeric value; the expression evaluates to true if the first term is greater than the second term.
>=	Compares two numeric terms. Both sides must resolve to a numeric value; the expression evaluates to true if the first term is greater than or equal to the second term.
HAS	The expression evaluates to true if the string in the first term is contained at all in the second term.
!HAS	The expression evaluates to true if the string in the first term is NOT contained in the second term.

null keyword

The special term null can be entered to compare the variable with the value NULL.

Binary Comparisons

For binary comparisons, variable values are rendered as hexadecimal strings. The operators that work with string values can be used for these comparisons.

For example, if the variable %result% contains two bytes with the value of 255 in each byte, the following expression would return true:

%result% = FFFF

Array Comparisons

An array is represented as a string in an expression in the following format:

{term1,term2,term3}