[antlr-interest] a crazy problem cost me almost two days ---how can i get the return value from antlr?

Su Zhang westlifezs at gmail.com
Sun Nov 23 21:49:53 PST 2008


yes, i have, it has a prog_return class in the code, but it isnot the String
type,do you know how can I take the value as a string out of the code?

2008/11/23 Terence Parr <parrt at cs.usfca.edu>

>
> On Nov 23, 2008, at 7:47 PM, Su Zhang wrote:
>
> Hi all,
>>
>> I wrote a returns [String s] in my rules in order to get a return value,
>> but when I call the function generated by the exact rule in the main
>> function, there is not any return value, and the type of return value is not
>> a String, and the value includes a tree structure,etc, but I define it as a
>> string in the antlrworks, does anybody know what's the problem in my
>> project? how can i get the return String I defined? I am almost crazy about
>> this annoying problem,
>> here is a part of my grammar:
>>
>>
> hi. have you looked at the generated code?  It should have a t in the
> object returned from that rule.
>
> Ter
>
>


-- 
Su Zhang
PHD Candidate
Computer Information and Science
Kansas State University
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