[plt-scheme] (thread read)

I see. Just because the box is there, I thought it is still trying to read.

Chongkai

Robby Findler wrote:
> That program seems to behave correctly to me. The box will only go
> away when the prompt comes back, 100 seconds later.
>
> The box is for editing input that isn't yet submitted to the REPL.
> Once you hit return, the line is sent into the port and you can start
> working on another line.
>
> Robby
>