Re: Conflicts shift/reduction

[Hans Aberg]

At 21:16 +0200 2005/04/13, Eduardo Robles Elvira wrote:
> This is the bison output:
> lea.y: conflicts: 3 shift/reduce, 4 reduce/reduce
> lea.y:475.11-476.57: warning: rule never reduced because of conflicts:
> elif_statement_list: elif_statement
>
> How can I solve it ?

The standard attempt to resolve shift/reduce conflicts, is to use the 
--verbose option, and in the .output file, in the afflicted state and 
rules, put precedences of the tokens right before and after the ".". 
As the Bison manual says, a reduce/reduce conflict may indicate a 
serious problem with the grammar. If you are sure the grammar is OK, 
you might try the %glr option.
--
  Hans Aberg