[antlr-interest] to stop walking into a subtree
poroshpathor poroshpathor
poroshpathor81 at yahoo.com
Mon Apr 4 19:30:06 PDT 2011
Hi,
I am having a problem with ANTLR. I will be grateful to you if you can help me
in this regard.
Following is a rule at my tree grammar:
booleanexpression returns[boolean result]
: ^(AND op1 = booleanexpression op2 = booleanexpression) {if(op1&&op2) result =
true; else result =false;}
;
My question:
I want to stop walking once I found op1 as false. In that case, I don't need to
evaluate op2 anymore, the result is false anyway.
Is there any way to implement this?
Thanks in advance.
Porosh
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