[racket] Template variables

From: Manfred Lotz (manfred.lotz at arcor.de)
Date: Sat Sep 21 10:06:00 EDT 2013

On Sat, 21 Sep 2013 09:48:14 -0400
Matthias Felleisen <matthias at ccs.neu.edu>
wrote:

> 
> #lang racket
> 
> (require (except-in 2htdp/image image?))
> (require lang/htdp-advanced) ;; <-- this appears to override
>    except-in, so stick to this order 
> (require 2htdp/universe)
> 

Yep, that does it nicely. Thanks a lot. 


> 
> 
> On Sep 21, 2013, at 5:50 AM, Manfred Lotz wrote:
> 
> > Hi there,
> > How could I use template variables (... aso.) when using #lang
> > racket?
> > 
> > I tried this:
> > 
> > #lang racket
> > 
> > (require lang/htdp-advanced)
> > (require 2htdp/image)
> > (require 2htdp/universe)
> > 
> > 
> > test.rkt:4:9: module: identifier already imported from:
> > lang/htdp-beginner at: image?
> >  in: 2htdp/image
> >  context...:
> >   standard-module-name-resolver
> > 
> > If I leave out 2htdp/image then I won't have bitmap which I need.
> > 
> > Actually I would like to leave out lang/htdp-advanced but then the
> > ellipses are missing. What could I do?
> > 
> > 
> > -- 
> > Thanks,
> > Manfred
> > 
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