[Haskell-cafe] Strange console IO behavior (at least on Windows)

Peter Verswyvelen bugfact at gmail.com
Sat Aug 22 17:37:46 EDT 2009

Okay, I'll file a bug report. Maybe someone else on Windows could confirm
this behavior?
On Sat, Aug 22, 2009 at 11:36 PM, Jason Dagit <dagit at codersbase.com> wrote:

> On Sat, Aug 22, 2009 at 2:14 PM, Peter Verswyvelen<bugfact at gmail.com>
> wrote:
> > The following program
> > http://hpaste.org/fastcgi/hpaste.fcgi/view?id=8445#a8445
> > should echo the ASCII code of each character the user types, on the fly,
> > with no line buffering whatsoever.
> > But it doesn't. At least not under Windows's cmd, and even less with
> msys.
> > Under Windows, I have to press enter before anything is printed to the
> > screen. It then always prints 71 (that's upper G, no idea where that
> comes
> > from), and then blocks. Pressing enter again prints the codes of all
> > characters typed, except the first one, following by the two codes of the
> > linefeeds. So e.g. when I type "abc" ENTER, I get 71, then hitting ENTER
> > again, I get 98 99 10 10.
> > Under msys, it just ignores both the hSetBuffering and hSetEcho, but when
> > hitting enter, it at least prints the codes correctly.
> > How does it behave under OSX and Linux? Is this a bug or am I doing
> > something wrong?
> For me on OSX it has the intended behavior.  Which is to say, every
> time I type a key I see the ascii value of the key.  I have no idea
> why windows is being different.
> Jason
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