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module DifferentOFS
def setup
super
@ofs, $, = $,, "-"
end
def teardown
$, = @ofs
super
end
mod = Module.new do
def with_diffrent_ofs
const_set(:DifferentOFS, Class.new(self).class_eval {include DifferentOFS}).name
end
end
class << self; self; end.class_eval do
define_method(:included) do |klass|
super(klass)
klass.extend(mod)
end
end
end
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