def exprPostfix():
	if exprPrimary():
		exprPostfix_()
		return True
	return False


def exprPostfix_():
	if consume(TOKENS["DOT"]):
		if not consume(TOKENS["ID"]):
			raise TokenError(crtToken, "Missing ID after DOT in exprPostfix")
		exprPostfix_()
		return True
	if consume(TOKENS["LBRACKET"]):
		if not expr():
			raise TokenError(crtToken, "Missing expr after LBRACKET")
		if not consume(TOKENS["RBRACKET"]):
			raise TokenError(crtToken, "Missing RBACKET after expr")
		exprPostfix_()
		return True
	return False