class ExStruct

# File lib/ex_struct.rb, line 3
def initialize(hash=nil)
  @table = {}
  regist(hash) if hash
end

# File lib/ex_struct.rb, line 16
def method_missing(mid, *args)
  mname = mid.id2name
  len = args.length
  if mname.chomp!('=')
    if len != 1
      raise ArgumentError, "wrong number of arguments (#{len} for 1)", caller(1)
    end
    modifiable[new_ostruct_member(mname)] = args[0]
  elsif mname.chomp!('?')
    if len != 0
      raise ArgumentError, "wrong number of arguments (#{len} for 0)", caller(1)
    end
    @table[mname.to_sym]
  elsif len == 0
    ret = @table[mid]
    ret = (modifiable[new_ostruct_member(mname)] = self.class.new) unless ret
    ret
  else  
    raise ArgumentError, "wrong number of arguments (#{len} for 0)", caller(1)
  end   
end

# File lib/ex_struct.rb, line 8
def regist(hash)
  for k,v in hash
    @table[k.to_sym] = Hash === v ? ExStruct.new(v) : v
    new_ostruct_member(k)
  end
end