65 lines
2.8 KiB
Python
65 lines
2.8 KiB
Python
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# -*- coding: utf-8 -*-
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from __future__ import unicode_literals
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import string
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# Charsets for code 128
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_common = (
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' ', '!', '"', '#', '$', '%', '&', "'", '(', ')', '*', '+', ',',
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'-', '.', '/',
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) + tuple(string.digits) + (
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':', ';', '<', '=', '>', '?', '@',
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) + tuple(string.ascii_uppercase) + (
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'[', '\\', ']', '^', '_',
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)
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_charset_a = _common + (
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'\x00', '\x01', '\x02', '\x03', '\x04', '\x05', '\x06', '\x07', '\x08',
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'\x09', '\x0a', '\x0b', '\x0c', '\x0d', '\x0e', '\x0f', '\x10', '\x11',
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'\x12', '\x13', '\x14', '\x15', '\x16', '\x17', '\x18', '\x19', '\x1a',
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'\x1b', '\x1c', '\x1d', '\x1e', '\x1f', '\xf3', '\xf2', 'SHIFT', 'TO_C',
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'TO_B', '\xf4', '\xf1',
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)
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_charset_b = _common + ('`',) + tuple(string.ascii_lowercase) + (
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'{', '|', '}', '~', '\x7f', '\xf3', '\xf2', 'SHIFT', 'TO_C', '\xf4',
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'TO_A', '\xf1',
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)
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ALL = set(_common + _charset_a + _charset_b)
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A = dict(((c, i) for i, c in enumerate(_charset_a)))
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B = dict(((c, i) for i, c in enumerate(_charset_b)))
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C = {'TO_B': 100, 'TO_A': 101, '\xf1': 102}
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CODES = (
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'11011001100', '11001101100', '11001100110', '10010011000', '10010001100',
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'10001001100', '10011001000', '10011000100', '10001100100', '11001001000',
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'11001000100', '11000100100', '10110011100', '10011011100', '10011001110',
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'10111001100', '10011101100', '10011100110', '11001110010', '11001011100',
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'11001001110', '11011100100', '11001110100', '11101101110', '11101001100',
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'11100101100', '11100100110', '11101100100', '11100110100', '11100110010',
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'11011011000', '11011000110', '11000110110', '10100011000', '10001011000',
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'10001000110', '10110001000', '10001101000', '10001100010', '11010001000',
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'11000101000', '11000100010', '10110111000', '10110001110', '10001101110',
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'10111011000', '10111000110', '10001110110', '11101110110', '11010001110',
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'11000101110', '11011101000', '11011100010', '11011101110', '11101011000',
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'11101000110', '11100010110', '11101101000', '11101100010', '11100011010',
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'11101111010', '11001000010', '11110001010', '10100110000', '10100001100',
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'10010110000', '10010000110', '10000101100', '10000100110', '10110010000',
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'10110000100', '10011010000', '10011000010', '10000110100', '10000110010',
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'11000010010', '11001010000', '11110111010', '11000010100', '10001111010',
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'10100111100', '10010111100', '10010011110', '10111100100', '10011110100',
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'10011110010', '11110100100', '11110010100', '11110010010', '11011011110',
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'11011110110', '11110110110', '10101111000', '10100011110', '10001011110',
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'10111101000', '10111100010', '11110101000', '11110100010', '10111011110',
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'10111101110', '11101011110', '11110101110', '11010000100', '11010010000',
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'11010011100',
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)
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STOP = '11000111010'
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START_CODES = {'A': 103, 'B': 104, 'C': 105}
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TO = {101: START_CODES['A'], 100: START_CODES['B'], 99: START_CODES['C']}
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