C. Template Files Reference : Substitution Variables
 
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Substitution Variables
Substitution variables are global variables used in template files. These variables have the form $variable. The Vision code generator substitutes actual values for variables contained in the template before code is generated.
Substitution variables are used in executable "template language" statements—such as the ## generate statement—that are translated into 4GL statements in the application source code.
Substitution variables can be system defined or user defined. These two types are described in the following sections.