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

From: Robby Findler (robby at eecs.northwestern.edu)
Date: Tue Oct 6 17:59:46 EDT 2009

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...?


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