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from copy import deepcopy |
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2
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3
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4
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LETTERS = 'abcdefghijklmnopqrstuvwxyz' |
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5
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NUMBERS = '1234567890' |
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6
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7
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8
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def convert(code): |
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9
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bin_code = bin(code)[2:].zfill(6)[::-1] |
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10
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return [[int(bin_code[j + i * 3]) for i in range(2)] for j in range(3)] |
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11
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12
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13
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LETTERS_NUMBERS = list( |
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14
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map( |
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15
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convert, |
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[ |
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1, |
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18
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3, |
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9, |
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20
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25, |
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21
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17, |
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22
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11, |
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23
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27, |
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24
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19, |
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25
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10, |
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26
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26, |
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27
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5, |
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28
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7, |
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29
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13, |
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30
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29, |
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31
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21, |
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32
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15, |
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33
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31, |
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34
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23, |
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35
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14, |
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36
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30, |
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37
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37, |
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38
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39, |
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39
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62, |
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40
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45, |
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41
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61, |
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42
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53, |
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47, |
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44
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63, |
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45
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55, |
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46
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46, |
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47
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26, |
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48
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], |
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49
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) |
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50
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) |
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51
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CAPITAL_FORMAT = convert(32) |
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NUMBER_FORMAT = convert(60) |
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53
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PUNCTUATION = { |
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",": convert(2), |
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"-": convert(18), |
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"?": convert(38), |
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"!": convert(22), |
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".": convert(50), |
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"_": convert(36), |
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60
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} |
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61
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WHITESPACE = convert(0) |
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62
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63
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64
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def braille_page(text): |
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code_stream = [[], [], []] |
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for i in text: |
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code_stream[0].append(0) |
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68
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code_stream[1].append(0) |
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69
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code_stream[2].append(0) |
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70
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if i.lower() in LETTERS: |
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71
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converted_code = deepcopy(LETTERS_NUMBERS[LETTERS.index(i.lower())]) |
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72
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if i not in LETTERS: |
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73
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converted_code[0] = CAPITAL_FORMAT[0] + [0] + converted_code[0] |
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74
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converted_code[1] = CAPITAL_FORMAT[1] + [0] + converted_code[1] |
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75
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converted_code[2] = CAPITAL_FORMAT[2] + [0] + converted_code[2] |
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76
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elif i in NUMBERS: |
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converted_code = deepcopy(LETTERS_NUMBERS[NUMBERS.index(i)]) |
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78
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converted_code[0] = NUMBER_FORMAT[0] + [0] + converted_code[0] |
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79
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converted_code[1] = NUMBER_FORMAT[1] + [0] + converted_code[1] |
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80
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converted_code[2] = NUMBER_FORMAT[2] + [0] + converted_code[2] |
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81
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elif i in PUNCTUATION: |
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82
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converted_code = deepcopy(PUNCTUATION[i]) |
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83
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else: |
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84
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converted_code = deepcopy(WHITESPACE) |
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85
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code_stream[0] = code_stream[0] + converted_code[0] |
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86
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code_stream[1] = code_stream[1] + converted_code[1] |
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87
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code_stream[2] = code_stream[2] + converted_code[2] |
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88
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del converted_code |
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89
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for i in range(3): |
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90
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code_stream[i] = code_stream[i][1:] |
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91
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92
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# cut stream into 10 symbles long each line |
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93
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if len(code_stream[0]) > 29: |
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94
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code_stack = [] |
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95
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while len(code_stream[0]) > 29: |
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96
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code_stack.append(code_stream[0][:29]) |
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97
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code_stack.append(code_stream[1][:29]) |
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98
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code_stack.append(code_stream[2][:29]) |
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99
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code_stream[0] = code_stream[0][30:] |
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100
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code_stream[1] = code_stream[1][30:] |
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101
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code_stream[2] = code_stream[2][30:] |
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102
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103
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code_stack.append(code_stream[0][:29]) |
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104
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code_stack.append(code_stream[1][:29]) |
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105
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code_stack.append(code_stream[2][:29]) |
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106
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code_stream = [] |
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107
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for i in range(len(code_stack) // 3): |
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108
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code_stream.append([0 for k in range(29)]) |
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109
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code_stream.append( |
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110
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[ |
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111
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0 if k + 1 > len(code_stack[i * 3]) else code_stack[i * 3][k] |
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112
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for k in range(29) |
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113
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] |
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114
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) |
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115
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code_stream.append( |
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116
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[ |
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117
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0 |
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118
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if k + 1 > len(code_stack[i * 3 + 1]) |
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119
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else code_stack[i * 3 + 1][k] |
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120
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for k in range(29) |
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121
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] |
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122
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) |
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123
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code_stream.append( |
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124
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[ |
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125
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0 |
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126
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if k + 1 > len(code_stack[i * 3 + 2]) |
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127
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else code_stack[i * 3 + 2][k] |
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128
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for k in range(29) |
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129
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] |
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130
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) |
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131
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return code_stream[1:] |
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132
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return code_stream |
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133
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134
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135
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if __name__ == '__main__': |
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136
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# These "asserts" using only for self-checking and not necessary for |
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137
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# auto-testing |
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138
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def checker(func, text, answer): |
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139
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result = func(text) |
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140
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return answer == tuple(tuple(row) for row in result) |
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141
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142
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assert checker( |
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143
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braille_page, |
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144
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u"hello 1st World!", |
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145
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( |
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146
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( |
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147
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1, |
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148
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0, |
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149
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0, |
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150
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1, |
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151
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0, |
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152
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0, |
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153
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1, |
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154
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0, |
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155
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0, |
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156
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1, |
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157
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0, |
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158
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0, |
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159
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1, |
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160
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0, |
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161
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0, |
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162
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0, |
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163
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0, |
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164
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0, |
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165
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0, |
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166
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1, |
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167
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0, |
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168
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1, |
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169
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0, |
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170
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0, |
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171
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0, |
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172
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1, |
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173
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0, |
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174
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0, |
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175
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1, |
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176
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), |
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177
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( |
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178
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1, |
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179
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1, |
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180
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0, |
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181
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0, |
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182
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1, |
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183
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0, |
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184
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1, |
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185
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0, |
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186
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0, |
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187
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1, |
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188
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0, |
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189
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0, |
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190
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0, |
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191
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1, |
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192
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0, |
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193
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0, |
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194
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0, |
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195
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0, |
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196
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0, |
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197
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1, |
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198
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0, |
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199
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0, |
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200
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0, |
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201
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0, |
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202
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1, |
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203
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0, |
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204
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0, |
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205
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1, |
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206
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1, |
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207
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), |
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208
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( |
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209
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0, |
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210
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0, |
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211
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0, |
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212
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0, |
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213
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0, |
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214
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0, |
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215
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1, |
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216
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0, |
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217
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0, |
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218
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1, |
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219
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0, |
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220
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0, |
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221
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1, |
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222
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0, |
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223
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0, |
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224
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0, |
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225
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0, |
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226
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0, |
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227
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1, |
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228
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1, |
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229
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0, |
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230
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0, |
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231
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0, |
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232
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0, |
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233
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1, |
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234
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0, |
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235
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0, |
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236
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1, |
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237
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0, |
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238
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), |
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239
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( |
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240
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0, |
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241
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0, |
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242
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0, |
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243
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0, |
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244
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0, |
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245
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0, |
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246
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0, |
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247
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0, |
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248
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0, |
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249
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0, |
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250
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0, |
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251
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0, |
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252
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0, |
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253
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0, |
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254
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0, |
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255
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0, |
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256
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0, |
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257
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0, |
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258
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0, |
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259
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0, |
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260
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0, |
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261
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0, |
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262
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0, |
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263
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0, |
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264
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0, |
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265
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0, |
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266
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0, |
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267
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0, |
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268
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0, |
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269
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), |
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270
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( |
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271
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0, |
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272
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0, |
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273
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0, |
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274
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0, |
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275
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0, |
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276
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0, |
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277
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0, |
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278
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1, |
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279
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0, |
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280
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1, |
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281
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0, |
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282
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0, |
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283
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1, |
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284
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0, |
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285
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0, |
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286
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1, |
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287
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0, |
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288
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0, |
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289
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1, |
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290
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1, |
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291
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0, |
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292
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0, |
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293
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0, |
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294
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0, |
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295
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0, |
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296
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0, |
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297
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0, |
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298
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0, |
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299
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0, |
|
300
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), |
|
301
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( |
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302
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0, |
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303
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0, |
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304
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0, |
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305
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0, |
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306
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0, |
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307
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0, |
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308
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1, |
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309
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1, |
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310
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0, |
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311
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0, |
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312
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1, |
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313
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0, |
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314
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1, |
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315
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1, |
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316
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0, |
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317
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1, |
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318
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0, |
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319
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0, |
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320
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0, |
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321
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1, |
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322
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0, |
|
323
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1, |
|
324
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1, |
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325
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0, |
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326
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0, |
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327
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0, |
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328
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0, |
|
329
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0, |
|
330
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0, |
|
331
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), |
|
332
|
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( |
|
333
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0, |
|
334
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0, |
|
335
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0, |
|
336
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0, |
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337
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1, |
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338
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0, |
|
339
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1, |
|
340
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1, |
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341
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0, |
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342
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1, |
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343
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0, |
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344
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0, |
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345
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1, |
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346
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0, |
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347
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0, |
|
348
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1, |
|
349
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0, |
|
350
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0, |
|
351
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0, |
|
352
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0, |
|
353
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0, |
|
354
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1, |
|
355
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0, |
|
356
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0, |
|
357
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0, |
|
358
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0, |
|
359
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0, |
|
360
|
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0, |
|
361
|
|
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0, |
|
362
|
|
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), |
|
363
|
|
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), |
|
364
|
|
|
), "Example" |
|
365
|
|
|
assert checker( |
|
366
|
|
|
braille_page, |
|
367
|
|
|
u"42", |
|
368
|
|
|
( |
|
369
|
|
|
(0, 1, 0, 1, 1, 0, 0, 1, 0, 1, 0), |
|
370
|
|
|
(0, 1, 0, 0, 1, 0, 0, 1, 0, 1, 0), |
|
371
|
|
|
(1, 1, 0, 0, 0, 0, 1, 1, 0, 0, 0), |
|
372
|
|
|
), |
|
373
|
|
|
), "42" |
|
374
|
|
|
assert checker( |
|
375
|
|
|
braille_page, |
|
376
|
|
|
u"CODE", |
|
377
|
|
|
( |
|
378
|
|
|
(0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 1, 0, 0, 0, 0, 1, 0), |
|
379
|
|
|
(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1), |
|
380
|
|
|
(0, 1, 0, 0, 0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0), |
|
381
|
|
|
), |
|
382
|
|
|
), "CODE" |
|
383
|
|
|
|