[plt-scheme] Parser Tools group-id for tokens

On Wed, Nov 26, 2008 at 4:19 AM, Jon Rafkind <workmin at ccs.neu.edu> wrote:
> Paulo J. Matos wrote:
>>
>> Hi all,
>>
>> I am wondering why do we need to specify a group id for tokens? What's
>> the usefulness of this group-id?
>>
>>
>
> I'm not an expert on this but it seems like a convenient way to pass tokens
> to the parser. Is it bothersome for you to define it?
>

Not bothersome at all. I just couldn't and maybe still can't see the
point, since the usual way is to pass one token into the parser. Why
pass a group of them?

-- 
Paulo Jorge Matos - pocmatos at gmail.com
Webpage: http://www.personal.soton.ac.uk/pocm