[plt-dev] Re: [plt-edu] Lab exercises for Making/Interacting-with Web Pages

From: Jay McCarthy (jay.mccarthy at gmail.com)
Date: Tue Oct 6 18:14:13 EDT 2009

That would work too but I did work around it and I think cycles might
be better spent elsewhere. Thanks for the offer tho.


On Tue, Oct 6, 2009 at 3:59 PM, Robby Findler
<robby at eecs.northwestern.edu> wrote:
> On Tue, Oct 6, 2009 at 4:55 PM, Jay McCarthy <jay.mccarthy at gmail.com> wrote:
>> Most annoying bug ever. The Web Server embeds strings like "(k . (1 2
>> 123213))" to store the continuation id. It can then 'read' this and
>> get back an assoc list and find the "k" binding. The teaching
>> languages don't support reading in non-list conses, so this failed in
>> a mysterious way. I had to enable reading of dots in the server when
>> invoked from the teaching langs.
> We can change things so that the configuration of 'read' happens based
> on its lexical context and not dynamically for the #lang
> lang/htdp-beginner version of the teaching languages, I think...?
> Robby

Jay McCarthy <jay at cs.byu.edu>
Assistant Professor / Brigham Young University

"The glory of God is Intelligence" - D&C 93

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