[antlr-interest] Tree construction with loops, children at same level

Marko Simovic markobarko at gmail.com
Fri Apr 18 10:25:32 PDT 2008

So, given a rule like this:

	:	(byFunction -> byFunction)
		(opNode=UnionOp b=byFunction -> ^(Function[$opNode] $unionFunction
$b) )*;

the following input:

a union b union c

creates a tree which consists of a union node with two children, one of
which is another union node (essentially "(a union b) union c").

what i want in such scenarios is to output a single union node with
three children. how is this done?

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