It might be worth looking at something like a curses library.
On Mon, Feb 1, 2010 at 4:45 PM, Mark Spezzano <[email protected]> wrote: > 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? >> >> _______________________________________________ >> Haskell-Cafe mailing list >> [email protected] >> http://www.haskell.org/mailman/listinfo/haskell-cafe >> >> > > _______________________________________________ > Haskell-Cafe mailing list > [email protected] > http://www.haskell.org/mailman/listinfo/haskell-cafe > _______________________________________________ Haskell-Cafe mailing list [email protected] http://www.haskell.org/mailman/listinfo/haskell-cafe
