Visara Master Console Center Scripting Guide - Manual (Page 36)

Chapter 3 Script Syntax
Scripting Guide 36
Variables
Using and Naming Variables
ƒ Variables may be character strings, numerics, or arrays; arrays may
be strings or integers. The first character of a variable name must be
a letter.
ƒ A variable name can contain letters, numbers, and underscores.
ƒ A variable name may not contain a dash.
ƒ All variable names are prefixed with a special character denoting its
type:
$ string
% integer
ƒ The variable name’s maximum length is 255 characters.
ƒ The scope of all variables is local to the script in which they are used.
ƒ Declaring variables is not necessary—they are allocated dynamically.
ƒ “Deallocation” of variables is not necessary—they are automatically
and properly deallocated when a script ends execution.
Character String Variables
ƒ Character string variable names are prefixed with a dollar sign “$”.
ƒ The maximum number of characters per character string is limited
only by available memory.
ƒ Strings are automatically initialized to “” (empty string).
ƒ String concatenation is allowed with the + operator.
ƒ String literals can be delimited by single or double quotes. For
example:
$VarName
$ScanText := “IEF”
$ScanText := ‘IEF’
$All := $First + $Second