[antlr-interest] Defining a custom AST in the C target of ANTLR 3

[Rosen, Mark]

Is there any example code on how to define your own AST subclass in C/C++ using ANTLR 3.0? I was able to find some for ANTLR 2.x, but none for ANTLR 3.0. I know that you need to specify the AST type name in ASTLabelType, but 1) do you need to register it with some kind of factory, and 2) which class/struct exactly do you derive from?

Thanks,

- Mark

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