#--
#     This file is part of the Prelude library that provides tools to
#     enable Haskell style functional programming in Ruby.
#
#     http://prelude.rubyforge.org 
#     
#     Copyright (C) 2006 APP Design, Inc.
#
#     This library is free software; you can redistribute it and/or
#     modify it under the terms of the GNU Lesser General Public
#     License as published by the Free Software Foundation; either
#     version 2.1 of the License, or (at your option) any later version.
#
#     This library 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
#     Lesser General Public License for more details.
#
#     You should have received a copy of the GNU Lesser General Public
#     License along with this library; if not, write to the Free Software
#     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
#++
#
# $Id: prelude.rb 8 2006-09-06 17:06:22Z prelude $

$:.unshift(File.dirname(__FILE__))

require 'prelude/list'
require 'prelude/tuple'
require 'prelude/monad'

module Prelude
  VERSION='0.0.2'
end # Prelude

class Symbol

  def to_proc
    proc { |obj, *args| obj.send(self, *args) }
  end

  def curry(one, *args)
    proc { |*args| self.to_proc.call(one, *args) }
  end

end # Symbol

class Proc 

  def curry(one, *args)
    proc{ |*args| self.call(one, *args)}
  end

  # This is will serve as an infix composition operator
  def <<(*args)
    if (1==args.length) && args[0].is_a?(Proc)
      proc {|*a| self.call(args[0].call(*a)) }
    else
      self.call(*args.flatten)
    end
  end

end # Proc