#!/usr/bin/env python
     # encoding: utf-8
     #
     # Copyright (c) 2009 Doug Hellmann All rights reserved.
     #
     """
     """
     #end_pymotw_header
     
     import decimal
     
     context = decimal.getcontext()
     
     ROUNDING_MODES = [ 
         'ROUND_CEILING', 
         'ROUND_DOWN',
         'ROUND_FLOOR', 
         'ROUND_HALF_DOWN', 
         'ROUND_HALF_EVEN',
         'ROUND_HALF_UP',
         'ROUND_UP',
         'ROUND_05UP',
         ]
     
     header_fmt = '{0:20} {1:^10} {2:^10} {3:^10}'
     
     print 'POSITIVES:'
     print
     
     print header_fmt.format(' ', '1/8 (1)', '1/8 (2)', '1/8 (3)')
     print header_fmt.format(' ', '-' * 10, '-' * 10, '-' * 10)
     for rounding_mode in ROUNDING_MODES:
         print '{0:20}'.format(rounding_mode),
         for precision in [ 1, 2, 3 ]:
             context.prec = precision
             context.rounding = getattr(decimal, rounding_mode)
             value = decimal.Decimal(1) / decimal.Decimal(8)
             print '{0:<10}'.format(value),
         print
     
     print
     print 'NEGATIVES:'
     
     print header_fmt.format(' ', '-1/8 (1)', '-1/8 (2)', '-1/8 (3)')
     print header_fmt.format(' ', '-' * 10, '-' * 10, '-' * 10)
     for rounding_mode in ROUNDING_MODES:
         print '{0:20}'.format(rounding_mode),
         for precision in [ 1, 2, 3 ]:
             context.prec = precision
             context.rounding = getattr(decimal, rounding_mode)
             value = decimal.Decimal(-1) / decimal.Decimal(8)
             print '{0:<10}'.format(value),
         print