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Other Language Features

Expression Syntax: Language Features​

The DPL expression system supports the use of arrays and if-then-else statements to create expressions not otherwise available. It also provides a special Digital Process Logic TestTable query to create sample data for testing.

Arrays​

An array takes a list of scalar data values and produces a corresponding vector. This features allows you to create vector types manually.

ExpressionResult
Array(“a”, “b”, “c”)a b c
Array(1,2,3)1 2 3

If-Then-Else​

You can apply simple logic to expressions using if-then-else. The syntax takes the form: if(condition, value if true, value if false).

ExpressionResult
If (Array(1,2,3)=2, "Yes", "No")No Yes No

FusionTestTable​

In order to provide sample data for testing, you can use FusionTestTable like a query (e.g. [[FusionTestTable]]) to create a table of sample data that includes all data types (integer, string, etc.).