The library at
http://hackage.haskell.org/package/readline
might solve your problem.
Cheers,
Greg
On Nov 4, 2009, at 2:21 PM, Torsten Otto wrote:
Hi!
My students have the task to program an interactive chatbot. We have
run into a problem that I can't solve either:
When we read the user's input through
> t <- getLine
it is not possible to delete typos before hitting enter and thereby
sending the input off to the system (at least in OS X, bash). I
didn't find that terribly problematic, but of course it is a bit of
a show stopper from their point of view.
The input is then used to generate a reply in purely functional
code, and the reply sent to the command line via putStr. Is there a
more clever way to interact with the user that would allow editing
ones text before sending it to the bot?
I guess we could try with a website, but don't know off hand how to
do that, either, although I've seen beautiful webservers made in
Haskell...
Regards,
Torsten Otto
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