{-Copyright 2011 Ben Blackburne 

    This file is part of MetAl.

    MetAl is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    MetAl is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with MetAl.  If not, see <http://www.gnu.org/licenses/>.

-}
module Sequence.General where 
        type Alphabet = Char
        data Undetermined=GAP | X 
        instance Show Undetermined where 
                show GAP = "-"
                show X = "X"
