[antlr-interest] unexpected token when AST rewrite is used

[Bernardo Elayda]

Hi!
I switched to 3.1b1 but still got the same error:
$ java org.antlr.Tool Test.g
ANTLR Parser Generator  Version 3.1b1 (May 20, 2008)  1989-2008
error(100): Test.g:11:27: syntax error: antlr: Test.g:11:27: unexpected
token: 0

Looks like it still doesn't like the rule with the argument as a child node
of a rewrite. I'm including the grammar here.

Any suggestions are welcome.  I'm gonna refactor my grammar.
tia,
Bernardo Elayda
----------------------------
grammar Test;

options {
    output=AST;
}

tokens {
    MYPROGRAM;
}

a : b[0]+ -> ^(MYPROGRAM b[0]+)
  ;

b[int i] : .
         ;

    NUMBER : DIGIT+ ('.' DIGIT+)? ;
IDENTIFIER : ('a'..'z'|'A'..'Z') ('a'..'z'|'A'..'Z'|'0'..'9')* ;
   COMMENT : '#' (options {greedy=false;} :.)* '\n' {$channel=HIDDEN;} ;
        WS : ('\n'|'\r'|' '|'\t') {$channel=HIDDEN;} ;

fragment DIGIT : '0'..'9' ;


On Fri, Jun 13, 2008 at 1:06 AM, Terence Parr <parrt at cs.usfca.edu> wrote:

> I'd suggest trying 3.1b1.
> Ter
>
> On Jun 13, 2008, at 9:58 AM, Bernardo Elayda wrote:
>
>  Hi,
>> Why does Antlr 3.0.1 complain that a token is unexpected for the rule
>> called B which has a single argument:
>>
>> a : b[0]+ -> ^(MYPROGRAM b[0]+)
>>   ;
>>
>> I can only get Antlr to accept the above rule if I do this:
>>
>> a : b[0] -> ^(MYPROGRAM b+)
>>
>> Are rules with arguments not allowed as child nodes in an Antlr AST?
>>
>> tia,
>> Bernardo Elayda
>>
>>
>
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