# $Id$

import socket
import re

class ip_address(object):

  def __init__(self, text):
    self.addr = socket.inet_pton(self.af, text)

  def __str__(self):
    return socket.inet_ntop(self.af, self.addr)

  def __eq__(self, other):
    return self.addr == other.addr

  def __hash__(self):
    return self.addr.__hash__()

class ipv4_address(ip_address):
  re = "[0-9.]+"
  af = socket.AF_INET

class ipv6_address(ip_address):
  re = "[0-9:a-fA-F]+"
  af = socket.AF_INET6

class resource(object):
  pass

class asn(resource, long):
  pass

class ip_prefix(resource):

  def __init__(self, addr, prefixlen):
    self.addr = addr
    self.prefixlen = prefixlen

  def __str__(self):
    return str(self.addr) + "/" + str(self.prefixlen)

  def __eq__(self, other):
    return self.addr == other.addr and self.prefixlen == other.prefixlen

  def __hash__(self):
    return self.addr.__hash__() + self.prefixlen.__hash__()

class resource_range(resource):

  def __init__(self, min, max):
    assert isinstance(min, resource) and isinstance(max, resource)
    self.min = min
    self.max = max

  def __str__(self):
    return str(self.min) + "-" + str(self.max)

  def __eq__(self, other):
    return self.min == other.min and self.max == other.max

  def __hash__(self):
    return self.min.__hash__() + self.max.__hash__()

class resource_set(set):

  def __init__(self, *elts):
    for e in elts:
      assert isinstance(e, resource)
    set.__init__(self, elts)

  def __str__(self):
    return "{" + ", ".join(map(str, self)) + "}"

s = resource_set(ip_prefix(ipv6_address("fe80::"), 16), ip_prefix(ipv4_address("10.0.0.44"), 32))

print s

print len(s)

for i in s:
  print i