func MakeCode(dt)
  fvar(r)
  r = 'Replace(' + SrcStr + ', ' + SubStr + ', ' + DestStr
  if(isndef(Start) or isndef(Count) or isndef(Compare))
    r += ', ' + Start + ', ' + `Count` + ', ' + Compare
  end
  r += ')'
  return(r)
end
  
func doReplace(_data)
  if(linked(Result))
    println(res, ' = ', MakeCode(_data))
    event(onReplace, res)
  else
    event(onReplace, MakeCode(_data))
  end
end

func Result(_data)
  if(linked(doReplace))
    return(res)
  else
    return(MakeCode())
  end
end