[racket] Temporary Definitions with ellipses

A bit unrelated, but is there a setting for DrRacket on Ubuntu to put the
"toolbar" on the vertical like you had on your Mac?

[]'s

Rodolfo Carvalho


On Tue, May 24, 2011 at 17:54, Matthias Felleisen <matthias at ccs.neu.edu>wrote:

>
> On May 24, 2011, at 2:25 PM, SCIAMACHIST wrote:
>
> > Lewis Watmore
> >
> > Hello,
> >    I am a "noob" so if this is the wrong place for my question, please
> direct me to somewhere more appropriate.
> >
> >    In the DrScheme Companion at "3.3 Finger Exercises on Composing
> Functions" it is stated that you can create temporary definitions using an
> ellipsis in this manor:
> >
> >    (define (feet->yards f) ...)
> >
> > --where the ellipsis "is a legal Scheme name. DrScheme does not attempt
> to determine the meaning of a name until necessary."
> >
> > But DrRacket does not allow this usage. I get this error message: "...:
> ellipses not allowed as an expression in: (...)"
> >    Is there an alternative other than commenting-out unfinished
> definitions?
>
>
> The Companion is for people who work their way through How to Design
> Programs (1e or 2e). As stated in the Companion, they are expected to use
> the HtDP student languages, which support this notation. See attached
> screenshot.
>
> You may also wish to look at
>
>  http://www.ccs.neu.edu/home/matthias/HtDP2e/index.html
>
>
> _________________________________________________
>  For list-related administrative tasks:
>  http://lists.racket-lang.org/listinfo/users
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.racket-lang.org/users/archive/attachments/20110524/a545b91c/attachment.html>