[antlr-interest] ANTLRWork freez

[Terence Parr]

On Jun 10, 2007, at 11:10 PM, Fabio Maulo wrote:

> I wrote the attached grammar using ANTLRWorks but now I can't work  
> with it.
> It is a partial grammar but i can't test any rules, can't debug it  
> and, some times, i can't use the editor....
>
> Any idea ?

Try tacking the issues one by one.  There are a number of errors in  
the grammar I believe:


ANTLR Parser Generator  Version 3.0 (May 17, 2007)  1989-2007
warning(205): T.g:167:4: ANTLR could not analyze this decision in  
rule booleanFactor; often this is because of recursive rule  
references visible from the left edge of alternatives.  ANTLR will re- 
analyze the decision with a fixed lookahead of k=1.  Consider using  
"options {k=1;}" for that decision and possibly adding a syntactic  
predicate.
warning(205): T.g:175:3: ANTLR could not analyze this decision in  
rule booleanPrimary; often this is because of recursive rule  
references visible from the left edge of alternatives.  ANTLR will re- 
analyze the decision with a fixed lookahead of k=1.  Consider using  
"options {k=1;}" for that decision and possibly adding a syntactic  
predicate.
warning(205): T.g:175:3: ANTLR could not analyze this decision in  
rule booleanPrimary; often this is because of recursive rule  
references visible from the left edge of alternatives.  ANTLR will re- 
analyze the decision with a fixed lookahead of k=1.  Consider using  
"options {k=1;}" for that decision and possibly adding a syntactic  
predicate.
...

Ter