Re: [Haskell-cafe] question about GHC and Unicode

zefria:

On Sun, Apr 27, 2008 at 1:02 PM, Don Stewart wrote:

...

GHC supports unicode internally, and String and Char are all unicode.

To do unicode IO however, you need to use the utf8-string package:

http://hackage.haskell.org/cgi-bin/hackage-scripts/package/utf8-string

Just import and use IO functions from System.IO.UTF8, and that's it!

crap... I was hoping for a switch or something.

The program is supposed to be an interpreter that includes unicode IO support, and I wanted to use readline or editline or similar for it. Is there any library you know of that would have that kind of an ability while still using unicode? Between readline and unicode, unicode is the more important, but a readline ability would still be very nice.

Ian Lynagh wrote a pure haskell readline implementation a while ago, that would be trivial to change to use System.IO.UTF8.getLine -- or you could write your own (basic history/readline editing is fairly simple). -- Don