Note
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GDL has directives that define macros. References to macros are expanded in-line to obtain the entry that is interpreted by the parser.
GDL contains the following macro directives:
*Macros defines a group of value macros.
*BlockMacro defines a block macro.
*InsertBlock references a block macro
= (equal sign) references a value sign when it is followed by the name of a value macro.
For more information about macro directives, see GDL Macros.