Re: bison help

[Fred 24]

(Please reply to my email)

Hi,
 my problem is to skip the \n the white-space is not my problem. I have 
trouble with the \n. When a \n occurs between rules, bison return an error. 
What can I do for the \n to be valid between rules ???

SELECT STAR WhereClause OrderClause

"*"           return STAR;
"SELECT"      return SELECT;

WhereClause: {
             $$ = NULL;
            }
            ...
OrderClause:
            {
              $$ = NULL;
            }
            ...
Eg.:
SELECT *
WHERE ID = 5

It is not valid because a \n is between a "*" and "WHERE". The parser return 
an error and I want it to be valid with \n or not !

Thanks again
(Please reply to my email)

> From: Hans Aberg <address@hidden>
> To: "Fred 24" <address@hidden>
> CC: address@hidden
> Subject: Re: bison help
> Date: Fri, 12 Jul 2002 23:18:25 +0200
>
> At 18:41 +0000 2002/07/12, Fred 24 wrote:
> >I have trouble with the \n. When a \n occurs between rules, bison return 
> an
> >error. What can I do for the \n to be valid between rules ???
>
> Bisn parser only parses the tokens as handed over by the lexer, so your
> problem is alexer problems. If you use Flex, white-space can be removed by
> a rule
> %%
> [[:space:]]+     { /* Skip white-space. */ }
>
> For more info see rge Flex manual, and the
>   Help-flex mailing list
>   address@hidden
>   http://mail.gnu.org/mailman/listinfo/help-flex
>
>   Hans Aberg




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