[plt-scheme] r6rs define-struct and gensym

Toon Verwaest wrote:
> Hi,
>
> I am trying to port an OO-lib I wrote in PLT, SchemeTalk 
> (http://smallwiki.unibe.ch/SchemeTalk), to r6rs; I'm having some 
> problems with trying to load gensym and define-struct.
>
> I have found define-struct in (scheme private old-ds); but I guess I 
> should use something else in the future?
>

R6RS records: http://www.r6rs.org/final/html/r6rs-lib/r6rs-lib-Z-H-7.html

> And how can I include gensym? I don't directly find the exact package.
>

According to R6RS, "two symbols whose names are spelled the same way are 
never distinguishable". So no gensym in the sense of uninterned symbol 
is available. For the purpose of "generating something that is distinct 
from anything else", use some other data type instead.

> cheers,
> Toon Verwaest

Chongkai