class Racc::StateTransitionTableGenerator

def addent(all, arr, chkval, ptr)
  max = arr.size
  min = nil
  arr.each_with_index do |item, idx|
    if item
      min ||= idx
    end
  end
  ptr.push(-7777)    # mark
  arr = arr[min...max]
  all.push [arr, chkval, mkmapexp(arr), min, ptr.size - 1]
end