Special symbols in actions

ANTLRMorph provides a set of special symbols you can use in actions within your morph grammar, and most of these symbols are inherited from ANTLR v3.

Syntax	Description
$enclosingRule.attr
$tokenLabel.prop $tokenRef.prop
$rulelabel.attr $ruleref.attr
$label	either a token label or token/rule list label like label+=expr.
$tokenref
$x::y	the only way to access the attributes within a dynamic scope regardless of whether or not you are in the defining rule.

The following symbols are unique in morph.

Syntax	Description
$x.get("...")	x is an enclosing rule. this is used to retrieve the object you put into the parse tree node.

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