Which parser to use for non-terminal to non-terminal rule??

[Shulito]

Which class do you use to represent a non-terminal to a non-terminal rule??

<script>          ::= <statements>
<statements> ::= <statements> <statement> | <statement>
<statement>   ::= <assignment-stm> | <return-stm>
...

new Ferno\Loco\Grammar(
	"<script>",
	array(
		"<script>" => ???                  <- to <statements>
	),
	function($script)
	{
		return $script;
	}
);

[qntm]

Hi there, I haven't used this in forever, but can't you do

new Ferno\Loco\Grammar(
	"<script>",
	array(
		"<script>" => "<statements>",
		# ...
	),
	function($script)
	{
		return $script;
	}
);

?

Failing that, you could just simplify your grammar a little:

<script> ::= <script> <statement> | <statement>
<statement>   ::= <assignment-stm> | <return-stm>
...

Although, having said that, your grammar seems to be left-recursive, which I believe Loco does not support.