Re: flex help

[John Millaway]

> 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
> 

You have to skip whitespace in your scanner.

%%
"*"             return STAR;
"SELECT"        return SELECT
[[:space:]]+   /* eat whitespace */
%%

-John


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