[antlr-interest] newbie rewrite error messages
ali azimi
aliaazimi at yahoo.com
Sat Jul 7 11:00:57 PDT 2007
Hi,
When I try to generate code from my grammar the following rewrite rule produces some errors.
priorityinputbody
:(virtuality)? stimulus(','stimulus)*->^(virtuality? stimulus+)
;
But when I try the following there is no error produced.
priorityinputbody
:(virtuality)? stimulus(','stimulus)*->^(VIR virtuality? stimulus+)
;
VIR:
;
1)So I deduce that I am not allowed to use ? at root node. Is that correct?
2) So if I opt for the second rewrite rule, I need to define VIR. How should I define it?
Thanking you in advance. I am very grateful.
Best wishes,
Al
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