[antlr-interest] Antlr Behavior! Why notifying sintactic errors in My tree gramar where I'm cheking for Semantic errors ONLY.

[Marwan Ajraoui]

Hi comunity;

When I'm runing the tree grammar I defined I'm getting errors like

Error: mismatched input '[]' expecting FN_ID

So the it seems that it doesn't recognize ([])*. I 've already checked
the entry sintactically, so why antlr get confused?

What could be the problem, here is a part of my tree gramar:

type_return: 'void' | 'integer' ('[]')* | 'float'('[]')* |
'double'('[]')* | 'char'('[]')* | 'string'('[]')* | 'boolean'('[]')*;

decl_funcion

scope {
   String ambito;
}

: ^(DECL_FUN type_return FN_ID LISTA_PARAMS lista_instrucciones (t2=inst_return{

       if(!types_checker.areTypesEqual($type_return.text,$t2.type))
                 emitErrorMessage("Funcion '"+ $FN_ID.text + "' en la linea
" + $FN_ID.line  +" : " + " devuelve un tipo de dato  incoherente con
el definido.");

})?{if($type_return.text.equals("void") && ($t2.type!= null || $t2.type!=""))
                     emitErrorMessage("Funcion '"+ $FN_ID.text + "' en
la linea " +
$FN_ID.line  +" : " + " devuelve void, no hay que devolver nada ó
cambia su tipo de retorno.");

       $decl_funcion::ambito = $FN_ID.text;
}
);

Thx in advance for any help;
--
Marouane

-- 
Marouane