[racket-dev] teaching language error messages

From: Robby Findler (robby at eecs.northwestern.edu)
Date: Tue Jul 19 12:03:27 EDT 2011

I see that the teaching language error messages now have things like
this in them (where the . is an image literal):

Welcome to DrRacket, version [3m].
Language: Beginning Student; memory limit: 128 MB.
> (+ 1 (list .))
+: expects a number as 2nd argument, given (cons an image empty)
I see that this is being done via regexps on the error message
strings. This seems bad.

Can we at least get some delimiters on there so it doesn't look like a
malformed use of 'cons'?


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