[racket] Behaviour with read-only files

On Nov 17, 2011, at 1:08 PM, John Clements wrote:

> 
> On Nov 17, 2011, at 9:12 AM, Alexander Krimm wrote:
> 
>> 
>> PS: is there any way to stop the stepper from continuing to execute the
>> programm while you are looking at steps in the beginning of the
>> programm? I had an infinite loop in one of my programms and while i was
>> trying to figure out why break condition didn't catch the stepper was
>> continuing infinitely slowing my system down to inuseability
>> 
> 
> I'm going to focus on the part that's relevant to me: 
> 
> How would it be if the stepper halted the program's execution every 10K steps and popped up a dialog asking whether you really wanted to continue?
> 

How about it just stops after 1000 steps and if a programmer clicks enough to see the last step, it then asks whether the next 1000 steps should be computed.