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Chapter 3 Script Syntax

Scripting Guide 50

Operators

Mathematical

The following mathematical operators may be used in numeric

expressions:

Character Operator

+ - Addition and Subtraction

* / % Multiplication, Integer division, and Modulo

- Unary Minus

:= Assignment

Table 6. List of Mathematical Operators

Boolean

In Boolean expressions:

 Zero is interpreted as FALSE and all other values are interpreted as

TRUE.

 Boolean expressions that evaluate to FALSE have a value of 0.

• Boolean expressions that evaluate to TRUE have a value of 1.

Boolean expressions consist of string and numeric expressions that

evaluate to a TRUE or FALSE value. Often, a Boolean comparison

operator is used, for example:

IF %A + %B == 4

This is not always the case. For example:

IF %A //same as IF %A == TRUE

To stretch the realm of Boolean expression, consider the following

example:

%Sum := (%A == %B) + 4

//%Sum will always be either 4 or 5

// (%A == %B) will always evaluate to true (1)

// or false (0).

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Visara Master Console Center Scripting Guide Manuale Utente Pagina 50