I thought our working principle was that textbook authors should create their own Teachpacks/language levels, not rely on those for HtDP being stable for their purposes.
This would certainly be a good time to make that point clear. Shriram On Mon, Jan 31, 2011 at 6:58 AM, Robby Findler <ro...@eecs.northwestern.edu> wrote: > In addition to these onlist replies, I have now heard one off-list > reply that is fairly strongly against changing it, pointing out that > people write books that depend on these details. > > Possibly adding a new function is the most viable route? > > Robby > > On Sun, Jan 30, 2011 at 10:00 PM, Marc L. Smith <mlsm...@cs.vassar.edu> wrote: >> I taught from HtDP/2e last semester, using 2htdp/image, and had similar >> experiences with my students playing with overlay/xy. I must admit it wasn't >> what I expected after using overlay, and I agree with Don. With the caveat >> that I'm not concerned about backward compatibility, I would prefer to see >> overlay/xy updated to be consistent with overlay, in the way Don described. >> Short of this possibility, a revision to the documentation would also be >> helpful... :-) >> Thanks to Don for articulating this behavior so well, and to Robby for >> soliciting further opinions! >> Marc >> >> On Sun, Jan 30, 2011 at 10:33 PM, <users-requ...@racket-lang.org> wrote: >> Message: 4 >> Date: Sun, 30 Jan 2011 21:04:52 -0600 >> From: Robby Findler <ro...@eecs.northwestern.edu> >> To: Don Blaheta <dblah...@monm.edu> >> Cc: "users@racket-lang.org" <users@racket-lang.org> >> Subject: Re: [racket] overlay and overlay/xy >> Message-ID: >> <AANLkTinGAs=xm7gqyjj+q5blmhmcjmic_8tnxhn31...@mail.gmail.com> >> Content-Type: text/plain; charset=UTF-8 >> I find this to be a compelling argument but I am worried about >> backwards compatibilty for others. >> The least I can do is a better job documenting this (and thanks to >> your message I think I'll be able to do that) but I'm not sure about >> changing the semantics. >> Do others that may depend on 2htdp/image have an opinion? >> Robby >> >> >> >> > > _________________________________________________ > For list-related administrative tasks: > http://lists.racket-lang.org/listinfo/users _________________________________________________ For list-related administrative tasks: http://lists.racket-lang.org/listinfo/users
