Michael Hartl wrote:
import System.IO
import Data.Char
main = do
hSetEcho stdin False
hSetBuffering stdin NoBuffering
hSetBuffering stdout NoBuffering
scanLine
where scanLine = do
c <- hGetChar stdin
putChar . toUpper $ c
scanLine
Last time I tried something like this [on Windows], it didn't seem to
work. I wanted to trap arrow keys and so forth, but they seem to be
being used for input history. (I.e., pressing the up-arrow produces
previously-entered lines of text, and none of this appears to be
reaching the Haskell program itself.) Has this changed since I tried it
last year?
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