class Mode
def initialize(noparm='', parm='')
	@noparm, @parm = noparm, parm
	@cur = '+'
end

def +(modemod)
	self
end

def set(modemod)
	@cur = modemod
	self
end

def to_str
	@cur
end

def to_s
	@cur
end
end