This document defines the formal syntax specifications, operator precedence levels, and grammar layouts.
Block scopes are opened with structure keywords (do, when, loop, repeat, for, class, try) and closed exclusively with the end keyword. Curly braces {} are not valid delimiters for control blocks.
Operators are evaluated in the following order of precedence (highest to lowest):
| Precedence | Operators | Description |
|---|---|---|
| 1 | () |
Function call, grouping |
| 2 | . |
Member access |
| 3 | typeof |
Type query operator |
| 4 | - (unary), not |
Negation, Logical NOT |
| 5 | *, /, % |
Multiplicative math |
| 6 | +, - |
Additive math, concatenation |
| 7 | in |
Membership containment check |
| 8 | <, <=, >, >= |
Comparison relation |
| 9 | ==, != |
Equality relation |
| 10 | and |
Logical conjunction |
| 11 | or |
Logical disjunction |
| 12 | = |
Variable assignment |
; are syntax errors.$ symbol before a string literal to enable interpolation:
name = "Alice"
say $"Hello, {name}!"