[plt-scheme] Implementing a Break Functionality in MrED

From: Chongkai Zhu (czhu at cs.utah.edu)
Date: Thu Jun 28 16:36:26 EDT 2007

I would suggest the famous "PL as OS, revenge of son of Lisp machine" 
paper. I once read it a long time ago, kind of forgot most things, and 
recently read it again and still fell it instructive.


Williams, M. Douglas wrote:
> I would like to add a Break button for my simulation applications 
> written in MrED.  I assume the basic implementation would signal a 
> break exception (exn:break) that I can catch and gracefully leave a 
> long computation.  If I get really ambitious I might try to include a 
> Resume button (with the continuation field from the break).  It would 
> also be nice to synchronize the processing of the break with the main 
> loop of my application so the graphics, etc are left in a consistent 
> state.
> Does anyone have any suggestions or ideas of where to look for 
> suitable examples?
> Doug
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