Functions

FUNCTION defines a named, reusable block; call it later with name():

FUNCTION open_run()
GUI r
DELAY 500
END_FUNCTION

open_run()
STRING notepad
ENTER
open_run()

Rules the compiler enforces

• Names are case-sensitive identifiers (letters, digits, underscores) and can’t reuse a reserved command or key name.
• Every FUNCTION needs a matching END_FUNCTION. A stray END_FUNCTION, a duplicate name, or a definition nested inside another function is a compile error.
• A function may call other functions, including ones defined later in the file or each other (mutual recursion). Call depth is bounded on the device — 8 levels deep — so a runaway recursive script is skipped safely rather than crashing the device.