| Navigation: Language Reference > 2 - Program Source Code Format > Compiler Directives >====== ITEMIZE (enumeration data structure) ====== |    |
[label] ITEMIZE( [ seed ] ) [,PRE( )]
equates
END
| label | An optional label for the ITEMIZE structure. |
| ITEMIZE | An enumeration data structure. |
| seed | An integer constant or constant expression specifying the value of the first EQUATE in the structure. |
| PRE | Declare a label prefix for variables within the structure. |
| equates | Multiple consecutive EQUATE declarations which specify positive integer values in the range 0 to 4,294,967,295. |
An ITEMIZE structure declares an enumerated data structure. If the first equate does not declare a value and there is no seed value specified, its value is one (1). All following equates following the first increment by one (1) if no value is specified for the subsequent equate. If a value is specified on a subsequent equate, all equates following that continue incrementing by one (1) from the specified value.
Equates within the ITEMIZE structure are referenced by prepending the prefix to the label of the equate (PRE attribute–PRE:EquateLabel). If the ITEMIZE structure has an empty prefix, then the equates are referenced by prepending the ITEMIZE label to the label of the equate (label:EquateLabel). If there is no prefix or label, then the equates are referenced by their own label without a prefix.
Example:
ITEMIZE
False EQUATE(0) !False = 0
True EQUATE !True = 1
END
Color ITEMIZE(0),PRE !Seed value is zero
Red EQUATE !Color:Red = 0
White EQUATE !Color:White = 1
Blue EQUATE !Color:Blue = 2
Pink EQUATE(5) !Color:Pink = 5
Green EQUATE !Color:Green = 6
Last EQUATE
END
Stuff ITEMIZE(Color:Last + 1),PRE(My) !Constant expression as seed
X EQUATE !My:X = Color:Last + 1
Y EQUATE !My:Y = Color:Last + 2
Z EQUATE !My:Z = Color:Last + 3
END
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