1  """
   2  Common code used in multiple modules.
   3  """
   4  
   5  
   6  class weekday(object):
   7      __slots__ = ["weekday", "n"]
   8  
   9      def __init__(self, weekday, n=None):
  10          self.weekday = weekday
  11          self.n = n
  12  
  13      def __call__(self, n):
  14          if n == self.n:
  15              return self
  16          else:
  17              return self.__class__(self.weekday, n)
  18  
  19      def __eq__(self, other):
  20          try:
  21              if self.weekday != other.weekday or self.n != other.n:
  22                  return False
  23          except AttributeError:
  24              return False
  25          return True
  26  
  27      def __hash__(self):
  28          return hash((
  29            self.weekday,
  30            self.n,
  31          ))
  32  
  33      def __ne__(self, other):
  34          return not (self == other)
  35  
  36      def __repr__(self):
  37          s = ("MO", "TU", "WE", "TH", "FR", "SA", "SU")[self.weekday]
  38          if not self.n:
  39              return s
  40          else:
  41              return "%s(%+d)" % (s, self.n)
  42  
  43  # vim:ts=4:sw=4:et
  44