On Fri, May 20, 2011 at 9:54 PM, massimiliano.m...@gmail.com <
massimiliano.m...@gmail.com> wrote:
> Hi,
>
> On Fri, May 20, 2011 at 10:55 AM, Bart Kiers <bki...@gmail.com> wrote:
> > targetsExpr
> > : category ('CAND' targetsExpr)* -> ^('CAND' category targetsExpr*)
> > ;
> >
> > is incorrect. You're always using `CAND` in your rewrite rule but that
> rule
> > could just match `category` only.
> > You'll probably want to do:
> >
> > targetsExpr
> > : category ('CAND'^ targetsExpr)*
> > ;
> >
>
> Thank you for your answer! It works now! But I've another question now.
> When I traverse the tree using this function (is there an example to
> have a visitor
> created by antlr?)
>
Yes, this is typically what tree grammars are for. But you can also walk it
manually.
See:
http://www.antlr.org/article/1100569809276/use.tree.grammars.tml
http://www.antlr.org/article/1170602723163/treewalkers.html
Regards,
Bart.
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