GLOBAL_SCOPE
	DEFINITIONS
		CONST_DEF
			SOURCEPOS
			NAME
			TYPE
			VALUE
		VARIABLE_DEF
			SOURCEPOS
			NAME
			TYPE
			INITIAL_VALUE
		FUNCTION_DEF
			SOURCEPOS
			NAME
			RETURN_TYPE
			ARGUMENTS
				TYPE
				NAME
			SCOPE
				DEFINITIONS
					s.o.
				INSTRUCTIONS
					s.o.
	INSTRUCTIONS
		ASSIGNMENT
			void value; s.u.
		PROCEDURE_CALL
			void value; s.u.
		FLOW_CONTROL
			misc.; tbd.

	VALUE
		RTYPE
		FUNCTION / OPERATOR
		ARGUMENTS / EXPRESSIONS

	ASSIGNMENT:
		FUNCTION = ASSIGNMENT_OPERATOR
		RTYPE = void
		ARGUMENTS = VREF + EXPRESSION

	PROCEDURE_CALL:
		NAME
		RTYPE = void
		ARGUMENTS / EXPRESSIONS



TYPE:
	void int8 uint8 int16 uint16 int32 uint32 int uint char bool
	string / str

NAME:
	(LETTER | '_') (LETTER | DECIMALDIGIT | '_') ...

VALUE:
	LITERAL
	'(' VALUE ')'
	PREFIX_OPERATOR VALUE
	VALUE POSTFIX_OPERATOR
	VALUE OPERATOR VALUE
	VALUE '?' VALUE ':' VALUE

ASSIGNMENT_OPERATOR:
	= += -= ...

PREFIX_OPERATOR:
	+ - ~ ! ++ --

POSTFIX_OPERATOR:
	++ --

OPERATOR:
	+ - * / % & | ^ && || == < > <= >= << >>


COMMAND:
	DEFINITION
		CONST_DEF
		VARIABLE_DEF
		FUNCTION_DEF
	INSTRUCTION
		ASSIGNMENT
		PROCEDURE_CALL
		PROGRAM_FLOW


CONST_DEF:
	const TYPE NAME = VALUE;

VARIABLE_DEF:
	TYPE NAME;
	TYPE NAME = VALUE;

FUNCTION_DEF:
	TYPE NAME '(' ARGUMENTS ')' '{' COMMANDS '}'

ASSIGNMENT:
	VARIABLE_REF ASSIGNMENT_OPERATOR VALUE;
	VARIABLE_REF POSTFIX_OPERATOR;

PROCEDURE_CALL:
	NAME VALUES;

FUNCTION_CALL:
	NAME '(' VALUES ')'

ARGUMENT:
	TYPE
	TYPE NAME