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#!/usr/bin/env ruby
# frozen_string_literal: false
require 'tk'
require 'tkextlib/iwidgets'
djl = Tk::Iwidgets::Disjointlistbox.new.pack(:fill=>:both, :expand=>true,
:padx=>10, :pady=>10)
djl.set_lhs(*[0,2,4,5])
djl.set_rhs(3,6)
djl.insert_lhs(1,7,8)
djl.insert_rhs(9)
p djl.get_lhs
p djl.get_rhs
Tk.mainloop
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