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@@ -1,157 +1,158 b'' | |||
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1 | 1 | """Filters for processing ANSI colors within Jinja templates. |
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2 | 2 | """ |
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3 | 3 | #----------------------------------------------------------------------------- |
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4 | 4 | # Copyright (c) 2013, the IPython Development Team. |
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5 | 5 | # |
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6 | 6 | # Distributed under the terms of the Modified BSD License. |
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7 | 7 | # |
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8 | 8 | # The full license is in the file COPYING.txt, distributed with this software. |
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9 | 9 | #----------------------------------------------------------------------------- |
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10 | 10 | |
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11 | 11 | #----------------------------------------------------------------------------- |
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12 | 12 | # Imports |
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13 | 13 | #----------------------------------------------------------------------------- |
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14 | 14 | |
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15 | 15 | import re |
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16 | 16 | from IPython.utils import coloransi |
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17 | 17 | |
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18 | 18 | #----------------------------------------------------------------------------- |
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19 | 19 | # Classes and functions |
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20 | 20 | #----------------------------------------------------------------------------- |
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21 | 21 | |
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22 | 22 | __all__ = [ |
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23 | 23 | 'strip_ansi', |
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24 | 24 | 'ansi2html', |
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25 | 25 | 'single_ansi2latex', |
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26 | 26 | 'ansi2latex' |
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27 | 27 | ] |
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28 | 28 | |
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29 | 29 | def strip_ansi(source): |
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30 | 30 | """ |
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31 | 31 | Remove ansi from text |
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32 | 32 | |
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33 | 33 | Parameters |
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34 | 34 | ---------- |
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35 | 35 | source : str |
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36 | 36 | Source to remove the ansi from |
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37 | 37 | """ |
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38 | 38 | |
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39 | 39 | return re.sub(r'\033\[(\d|;)+?m', '', source) |
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40 | 40 | |
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41 | 41 | |
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42 | 42 | def ansi2html(text): |
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43 | 43 | """ |
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44 | 44 | Conver ansi colors to html colors. |
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45 | 45 | |
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46 | 46 | Parameters |
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47 | 47 | ---------- |
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48 | 48 | text : str |
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49 | 49 | Text containing ansi colors to convert to html |
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50 | 50 | """ |
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51 | 51 | |
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52 | 52 | ansi_colormap = { |
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53 | 53 | '30': 'ansiblack', |
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54 | 54 | '31': 'ansired', |
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55 | 55 | '32': 'ansigreen', |
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56 | 56 | '33': 'ansiyellow', |
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57 | 57 | '34': 'ansiblue', |
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58 | 58 | '35': 'ansipurple', |
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59 | 59 | '36': 'ansicyan', |
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60 | 60 | '37': 'ansigrey', |
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61 | 61 | '01': 'ansibold', |
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62 | 62 | } |
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63 | 63 | |
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64 | 64 | # do ampersand first |
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65 | 65 | text = text.replace('&', '&') |
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66 | 66 | html_escapes = { |
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67 | 67 | '<': '<', |
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68 | 68 | '>': '>', |
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69 | 69 | "'": ''', |
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70 | 70 | '"': '"', |
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71 | 71 | '`': '`', |
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72 | 72 | } |
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73 | 73 | |
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74 | 74 | for c, escape in html_escapes.items(): |
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75 | 75 | text = text.replace(c, escape) |
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76 | 76 | |
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77 | 77 | ansi_re = re.compile('\x1b' + r'\[([\dA-Fa-f;]*?)m') |
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78 | 78 | m = ansi_re.search(text) |
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79 | 79 | opened = False |
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80 | 80 | cmds = [] |
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81 | 81 | opener = '' |
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82 | 82 | closer = '' |
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83 | 83 | while m: |
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84 | 84 | cmds = m.groups()[0].split(';') |
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85 | 85 | closer = '</span>' if opened else '' |
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86 | 86 | |
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87 | 87 | # True if there is there more than one element in cmds, *or* |
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88 | 88 | # if there is only one but it is not equal to a string of zeroes. |
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89 | 89 | opened = len(cmds) > 1 or cmds[0] != '0' * len(cmds[0]) |
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90 | 90 | classes = [] |
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91 | 91 | for cmd in cmds: |
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92 | 92 | if cmd in ansi_colormap: |
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93 | 93 | classes.append(ansi_colormap.get(cmd)) |
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94 | 94 | |
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95 | 95 | if classes: |
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96 | 96 | opener = '<span class="%s">' % (' '.join(classes)) |
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97 | 97 | else: |
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98 | 98 | opener = '' |
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99 | 99 | text = re.sub(ansi_re, closer + opener, text, 1) |
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100 | 100 | |
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101 | 101 | m = ansi_re.search(text) |
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102 | 102 | |
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103 | 103 | if opened: |
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104 | 104 | text += '</span>' |
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105 | 105 | return text |
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106 | 106 | |
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107 | 107 | |
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108 | 108 | def single_ansi2latex(code): |
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109 | 109 | """Converts single ansi markup to latex format |
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110 | 110 | |
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111 | 111 | Return latex code and number of open brackets. |
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112 | 112 | """ |
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113 | 113 | for color in coloransi.color_templates: |
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114 | 114 | |
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115 | 115 | #Make sure to get the color code (which is a part of the overall style) |
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116 | 116 | # i.e. 0;31 is valid |
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117 | 117 | # 31 is also valid, and means the same thing |
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118 | 118 | #coloransi.color_templates stores the longer of the two formats %d;%d |
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119 | 119 | #Get the short format so we can parse that too. Short format only exist |
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120 | 120 | #if no other formating is applied (the other number must be a 0)! |
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121 | 121 | style_code = getattr(coloransi.TermColors, color[0]) |
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122 | 122 | color_code = style_code.split(';')[1] |
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123 | 123 | is_normal = style_code.split(';')[0] == '0' |
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124 | 124 | |
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125 |
# regular |
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125 | # regular weight | |
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126 | 126 | if (code == style_code) or (is_normal and code == color_code): |
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127 | return '\\'+color[0].lower()+'{', 1 | |
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128 | # bold fonts | |
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127 | ||
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128 | return r'{\color{'+color[0].lower()+'}', 1 | |
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129 | # bold | |
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129 | 130 | if code == style_code[:3]+str(1)+style_code[3:]: |
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130 |
return '\ |
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131 | return r'\textbf{\color{'+color[0].lower()+'}', 1 | |
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131 | 132 | return '', 0 |
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132 | 133 | |
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133 | 134 | def ansi2latex(text): |
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134 | 135 | """Converts ansi formated text to latex version |
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135 | 136 | |
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136 | 137 | based on https://bitbucket.org/birkenfeld/sphinx-contrib/ansi.py |
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137 | 138 | """ |
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138 | 139 | color_pattern = re.compile('\x1b\\[([^m]+)m') |
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139 | 140 | last_end = 0 |
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140 | 141 | openbrack = 0 |
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141 | 142 | outstring = '' |
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142 | 143 | for match in color_pattern.finditer(text): |
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143 | 144 | head = text[last_end:match.start()] |
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144 | 145 | outstring += head |
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145 | 146 | if openbrack: |
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146 | 147 | outstring += '}'*openbrack |
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147 | 148 | openbrack = 0 |
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148 | 149 | if not (match.group() == coloransi.TermColors.Normal or openbrack): |
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149 | 150 | texform, openbrack = single_ansi2latex(match.group()) |
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150 | 151 | outstring += texform |
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151 | 152 | last_end = match.end() |
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152 | ||
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153 | #Add the remainer of the string and THEN close any remaining color brackets. | |
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153 | ||
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154 | # Add the remainer of the string and THEN close any remaining color brackets. | |
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154 | 155 | outstring += text[last_end:] |
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155 | 156 | if openbrack: |
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156 | 157 | outstring += '}'*openbrack |
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157 | 158 | return outstring.strip() |
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