Hi all,
In the Guide entry on control[1], there's a section detailing prompts
and abort. Here's an example from that section:
> (define (escape v)
(abort-current-continuation
(default-continuation-prompt-tag)
(lambda () v)))
> (+ 1 (+ 1 (+ 1 (+ 1 (+ 1 (+ 1 (escape 0)))))))
If you run this in the command-line REPL, it'll produce 0 as the Guide
claims. However, if you run it in DrRacket, it will not return.
It turns out that the abort handler for DrRacket is just:
(lambda args (void))
while the abort handler for Racket is this:
(lambda results (for-each (current-print) results))
Was this intentional or should both REPLs behave the same way for
aborts?
[1]: http://pre.racket-lang.org/docs/html/guide/prompt.html
Cheers,
Asumu
_________________________
Racket Developers list:
http://lists.racket-lang.org/dev
