Expressions and operators

Arithmetic/concatenation operators

&Total = &Price * &Quantity
&Greeting = "Hello, " + &Username

Comparison operators

=, <>, <, <=, >, >= — used in Where, If, While.

Logical operators

And/Or combine comparisons (typically in If/While): And binds tighter than Or.

If &a = 1 And &b = 2 Or &c = 3
    ...
EndIf

WARP has no boolean type of its own: each operand is validated like any other expression.

Literals

• Numbers: 100, 9.5.
• Text: "text" or 'text' (equivalent).
• Date/time: obtained via TODAY()/TIME(), there’s no date literal.

Variables and fields

• Variable: always with & (&Username).
• Table field: without &, only inside a For Each/New over that table (CustCode, Name).
• list/matrix element: &Variable[index] / &Variable[row, col] (1-based).
• list method: &Variable.Method(...) (Add/Clear/Remove as a statement, Count() as an expression) — see Data types: List.
• struct member: &Variable.Member (read and assignment) — see Data types: Struct.

Function/procedure calls as an expression

&variable = FunctionName(expr, ...)

See Builtin functions and @Source: control statements for your own Functions.