class ActionDispatch::Journey::GTG::TransitionTable

def as_json(options = nil)
  simple_regexp = Hash.new { |h,k| h[k] = {} }
  @regexp_states.each do |from, hash|
    hash.each do |re, to|
      simple_regexp[from][re.source] = to
    end
  end
  {
    regexp_states: simple_regexp,
    string_states: @string_states,
    accepting:     @accepting
  }
end