[antlr-interest] A question about treeprser?

[achilles7686]

 Dear antlr-interest,

 I want to have the pr_ModuleParList rule return an StringBuffer 
result ,but I don't know how to assign the return value when it is 
enclosed .


pr_TTCN3Module returns [StringBuffer output]
{
output=new StringBuffer();
StringBuffer retStr;
}
:
	#(
	TTCN3Module 
	retStr=pr_TTCN3ModuleId 
	 ( pr_ModuleParList )*
	)
{
        output.append(retStr);
};








 
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