AST.txt

<Parent> (value)
	<Child1>
	<Child2> -comment
	<Child3>?
	...

--------------------------

FUNC_CALL (identifier)
	(ARITH_OP | BOOL_OP | LABEL | NUMBER)?
	...

FUNC_DECLARE (identifier)
	STATEMENTS
	FUNC_PARAM?
	...

RETURN
	EXP?

VAR_DECLARE
	ASSIGN | LABEL

ASSIGN (identifier)
	LABEL
	ARITH_OP | BOOL_OP | LABEL | NUMBER

IF_ELSE
	BOOL_OP
	STATEMENTS -if branch
	STATEMENTS? | IF_ELSE? -else/elif branch

WHILE
	BOOL_OP
	STATEMENTS -while branch

PRINT
	ARITH_OP | BOOL_OP | LABEL | NUMBER

FACTOR
	ARITH_OP | BOOL_OP | LABEL | NUMBER

ARITH_OP (op)
	LABEL | NUMBER
	LABEL | NUMBER

BOOL_OP (op)
	LABEL | NUMBER
	LABEL | NUMBER

BOOL_UNARY_OP (op)
	LABEL | NUMBER