[antlr-interest] How to get rid of useless nodes in AST?

[Juancarlo Añez]

Jarrod,

Jim is right, but he doesn't make much of an explanation:

subtract : modulo ('-' modulo)* -> ^(SUBTRACT modulo (modulo)* ) ;


To get rid of the unneeded tokens you can write something like:

subtract
:




On Thu, Nov 15, 2012 at 11:56 PM, Jarrod Roberson <jarrod at vertigrated.com>wrote:

> I asked this question on stackoverflow.com, it has many details and
> graphics depicting what I am trying to do.
>
>
> http://stackoverflow.com/questions/13409927/how-to-get-rid-of-useless-nodes-from-this-ast-tree
>
> Can anyone help me get rid of these intermediate nodes?
>
> --
> Jarrod Roberson
>
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-- 
Juancarlo *Añez*