thanks for your suggestion. On Sat, Nov 21, 2015 at 2:30 PM, Tom Ellis < tom-lists-haskell-cafe-2013@jaguarpaw.co.uk> wrote:

On Sat, Nov 21, 2015 at 02:12:24PM -0500, Jeon-Young Kang wrote:

...

I got the following warning. How can I fix it?

Warning:

Tab character

I guess you replace the tab characters that appear in your source files with spaces.

Tom _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe

-- Department of Geography State University of New York at Buffalo jykang22@gmail.com Jeon-Young Kang