It might be worth looking at something like a curses library.
On Mon, Feb 1, 2010 at 4:45 PM, Mark Spezzano
I've tried this example and it just lets me type in anything in CAPITALS, which is nice, but Delete key doesn't delete and the arrow keys unfortunately let me manoeuvre the cursor all over the screen. Also the biggest problem is that Enter doesn't terminate the input session.
Isn't there a simple way to do something like this?
Surely Haskell must have a standard getLine function that support CAPITALS and backspacing and no arrow keys. Arrows keys with history would be nice.
Mark
On 31/01/2010, at 11:27 PM, Andrew Coppin wrote:
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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