[racket] Racket forward compatability

Don Green wrote at 04/28/2013 08:33 PM:
> Is there any assurance3 that a program written with Racket wil work 
> with a future version of Racket?

There have been a few non-backward-compatible changes over the last 
decade.  Since you're using 5.2.1, which is fairly recent, I don't think 
you have to be concerned.

> I have found that regexp functions are too slow for large data files 
> but maybe newer versions have made a change that would speed things 
> up.  (I read something about some solution from github but I am not 
> sure that is something I should look into.)  I'd rather just install a 
> new version of Racket at an appropriate stage, namely when my current 
> project development has concluded.  My current work around is a call 
> to an external program which provides the regexp function at the speed 
> needed.

You might want to post an example of how you're trying to use regexps in 
Racket, in case anyone has time to look at it and comment.

Neil V.