Mercurial > repos > shellac > sam_consensus_v3
annotate env/lib/python3.9/site-packages/docutils/writers/html4css1/__init__.py @ 0:4f3585e2f14b draft default tip
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author | shellac |
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date | Mon, 22 Mar 2021 18:12:50 +0000 |
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1 # $Id: __init__.py 8242 2018-11-29 08:11:18Z milde $ |
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2 # Author: David Goodger |
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3 # Maintainer: docutils-develop@lists.sourceforge.net |
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4 # Copyright: This module has been placed in the public domain. |
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5 |
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6 """ |
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7 Simple HyperText Markup Language document tree Writer. |
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8 |
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9 The output conforms to the XHTML version 1.0 Transitional DTD |
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10 (*almost* strict). The output contains a minimum of formatting |
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11 information. The cascading style sheet "html4css1.css" is required |
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12 for proper viewing with a modern graphical browser. |
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13 """ |
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14 |
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15 __docformat__ = 'reStructuredText' |
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16 |
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17 import os.path |
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18 import docutils |
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19 from docutils import frontend, nodes, writers, io |
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20 from docutils.transforms import writer_aux |
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21 from docutils.writers import _html_base |
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22 |
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23 class Writer(writers._html_base.Writer): |
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24 |
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25 supported = ('html', 'html4', 'html4css1', 'xhtml', 'xhtml10') |
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26 """Formats this writer supports.""" |
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27 |
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28 default_stylesheets = ['html4css1.css'] |
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29 default_stylesheet_dirs = ['.', |
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30 os.path.abspath(os.path.dirname(__file__)), |
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31 # for math.css |
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32 os.path.abspath(os.path.join( |
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33 os.path.dirname(os.path.dirname(__file__)), 'html5_polyglot')) |
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34 ] |
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35 |
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36 default_template = 'template.txt' |
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37 default_template_path = os.path.join( |
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38 os.path.dirname(os.path.abspath(__file__)), default_template) |
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39 |
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40 settings_spec = ( |
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41 'HTML-Specific Options', |
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42 None, |
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43 (('Specify the template file (UTF-8 encoded). Default is "%s".' |
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44 % default_template_path, |
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45 ['--template'], |
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46 {'default': default_template_path, 'metavar': '<file>'}), |
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47 ('Comma separated list of stylesheet URLs. ' |
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48 'Overrides previous --stylesheet and --stylesheet-path settings.', |
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49 ['--stylesheet'], |
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50 {'metavar': '<URL[,URL,...]>', 'overrides': 'stylesheet_path', |
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51 'validator': frontend.validate_comma_separated_list}), |
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52 ('Comma separated list of stylesheet paths. ' |
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53 'Relative paths are expanded if a matching file is found in ' |
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54 'the --stylesheet-dirs. With --link-stylesheet, ' |
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55 'the path is rewritten relative to the output HTML file. ' |
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56 'Default: "%s"' % ','.join(default_stylesheets), |
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57 ['--stylesheet-path'], |
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58 {'metavar': '<file[,file,...]>', 'overrides': 'stylesheet', |
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59 'validator': frontend.validate_comma_separated_list, |
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60 'default': default_stylesheets}), |
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61 ('Embed the stylesheet(s) in the output HTML file. The stylesheet ' |
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62 'files must be accessible during processing. This is the default.', |
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63 ['--embed-stylesheet'], |
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64 {'default': 1, 'action': 'store_true', |
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65 'validator': frontend.validate_boolean}), |
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66 ('Link to the stylesheet(s) in the output HTML file. ' |
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67 'Default: embed stylesheets.', |
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68 ['--link-stylesheet'], |
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69 {'dest': 'embed_stylesheet', 'action': 'store_false'}), |
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70 ('Comma-separated list of directories where stylesheets are found. ' |
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71 'Used by --stylesheet-path when expanding relative path arguments. ' |
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72 'Default: "%s"' % default_stylesheet_dirs, |
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73 ['--stylesheet-dirs'], |
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74 {'metavar': '<dir[,dir,...]>', |
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75 'validator': frontend.validate_comma_separated_list, |
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76 'default': default_stylesheet_dirs}), |
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77 ('Specify the initial header level. Default is 1 for "<h1>". ' |
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78 'Does not affect document title & subtitle (see --no-doc-title).', |
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79 ['--initial-header-level'], |
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80 {'choices': '1 2 3 4 5 6'.split(), 'default': '1', |
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81 'metavar': '<level>'}), |
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82 ('Specify the maximum width (in characters) for one-column field ' |
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83 'names. Longer field names will span an entire row of the table ' |
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84 'used to render the field list. Default is 14 characters. ' |
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85 'Use 0 for "no limit".', |
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86 ['--field-name-limit'], |
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87 {'default': 14, 'metavar': '<level>', |
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88 'validator': frontend.validate_nonnegative_int}), |
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89 ('Specify the maximum width (in characters) for options in option ' |
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90 'lists. Longer options will span an entire row of the table used ' |
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91 'to render the option list. Default is 14 characters. ' |
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92 'Use 0 for "no limit".', |
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93 ['--option-limit'], |
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94 {'default': 14, 'metavar': '<level>', |
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95 'validator': frontend.validate_nonnegative_int}), |
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96 ('Format for footnote references: one of "superscript" or ' |
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97 '"brackets". Default is "brackets".', |
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98 ['--footnote-references'], |
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99 {'choices': ['superscript', 'brackets'], 'default': 'brackets', |
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100 'metavar': '<format>', |
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101 'overrides': 'trim_footnote_reference_space'}), |
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102 ('Format for block quote attributions: one of "dash" (em-dash ' |
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103 'prefix), "parentheses"/"parens", or "none". Default is "dash".', |
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104 ['--attribution'], |
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105 {'choices': ['dash', 'parentheses', 'parens', 'none'], |
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106 'default': 'dash', 'metavar': '<format>'}), |
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107 ('Remove extra vertical whitespace between items of "simple" bullet ' |
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108 'lists and enumerated lists. Default: enabled.', |
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109 ['--compact-lists'], |
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110 {'default': 1, 'action': 'store_true', |
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111 'validator': frontend.validate_boolean}), |
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112 ('Disable compact simple bullet and enumerated lists.', |
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113 ['--no-compact-lists'], |
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114 {'dest': 'compact_lists', 'action': 'store_false'}), |
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115 ('Remove extra vertical whitespace between items of simple field ' |
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116 'lists. Default: enabled.', |
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117 ['--compact-field-lists'], |
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118 {'default': 1, 'action': 'store_true', |
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119 'validator': frontend.validate_boolean}), |
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120 ('Disable compact simple field lists.', |
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121 ['--no-compact-field-lists'], |
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122 {'dest': 'compact_field_lists', 'action': 'store_false'}), |
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123 ('Added to standard table classes. ' |
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124 'Defined styles: "borderless". Default: ""', |
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125 ['--table-style'], |
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126 {'default': ''}), |
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127 ('Math output format, one of "MathML", "HTML", "MathJax" ' |
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128 'or "LaTeX". Default: "HTML math.css"', |
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129 ['--math-output'], |
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130 {'default': 'HTML math.css'}), |
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131 ('Omit the XML declaration. Use with caution.', |
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132 ['--no-xml-declaration'], |
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133 {'dest': 'xml_declaration', 'default': 1, 'action': 'store_false', |
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134 'validator': frontend.validate_boolean}), |
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135 ('Obfuscate email addresses to confuse harvesters while still ' |
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136 'keeping email links usable with standards-compliant browsers.', |
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137 ['--cloak-email-addresses'], |
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138 {'action': 'store_true', 'validator': frontend.validate_boolean}),)) |
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139 |
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140 config_section = 'html4css1 writer' |
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141 |
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142 def __init__(self): |
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143 self.parts = {} |
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144 self.translator_class = HTMLTranslator |
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145 |
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146 |
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147 class HTMLTranslator(writers._html_base.HTMLTranslator): |
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148 """ |
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149 The html4css1 writer has been optimized to produce visually compact |
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150 lists (less vertical whitespace). HTML's mixed content models |
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151 allow list items to contain "<li><p>body elements</p></li>" or |
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152 "<li>just text</li>" or even "<li>text<p>and body |
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153 elements</p>combined</li>", each with different effects. It would |
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154 be best to stick with strict body elements in list items, but they |
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155 affect vertical spacing in older browsers (although they really |
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156 shouldn't). |
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157 The html5_polyglot writer solves this using CSS2. |
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158 |
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159 Here is an outline of the optimization: |
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160 |
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161 - Check for and omit <p> tags in "simple" lists: list items |
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162 contain either a single paragraph, a nested simple list, or a |
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163 paragraph followed by a nested simple list. This means that |
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164 this list can be compact: |
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165 |
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166 - Item 1. |
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167 - Item 2. |
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168 |
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169 But this list cannot be compact: |
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170 |
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171 - Item 1. |
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172 |
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173 This second paragraph forces space between list items. |
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174 |
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175 - Item 2. |
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176 |
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177 - In non-list contexts, omit <p> tags on a paragraph if that |
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178 paragraph is the only child of its parent (footnotes & citations |
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179 are allowed a label first). |
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180 |
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181 - Regardless of the above, in definitions, table cells, field bodies, |
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182 option descriptions, and list items, mark the first child with |
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183 'class="first"' and the last child with 'class="last"'. The stylesheet |
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184 sets the margins (top & bottom respectively) to 0 for these elements. |
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185 |
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186 The ``no_compact_lists`` setting (``--no-compact-lists`` command-line |
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187 option) disables list whitespace optimization. |
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188 """ |
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189 |
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190 # The following definitions are required for display in browsers limited |
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191 # to CSS1 or backwards compatible behaviour of the writer: |
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192 |
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193 doctype = ( |
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194 '<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"' |
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195 ' "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">\n') |
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196 |
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197 content_type = ('<meta http-equiv="Content-Type"' |
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198 ' content="text/html; charset=%s" />\n') |
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199 content_type_mathml = ('<meta http-equiv="Content-Type"' |
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200 ' content="application/xhtml+xml; charset=%s" />\n') |
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201 |
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202 # encode also non-breaking space |
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203 special_characters = dict(_html_base.HTMLTranslator.special_characters) |
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204 special_characters[0xa0] = u' ' |
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205 |
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206 # use character reference for dash (not valid in HTML5) |
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207 attribution_formats = {'dash': ('—', ''), |
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208 'parentheses': ('(', ')'), |
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209 'parens': ('(', ')'), |
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210 'none': ('', '')} |
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211 |
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212 # ersatz for first/last pseudo-classes missing in CSS1 |
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213 def set_first_last(self, node): |
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214 self.set_class_on_child(node, 'first', 0) |
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215 self.set_class_on_child(node, 'last', -1) |
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216 |
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217 # add newline after opening tag |
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218 def visit_address(self, node): |
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219 self.visit_docinfo_item(node, 'address', meta=False) |
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220 self.body.append(self.starttag(node, 'pre', CLASS='address')) |
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221 |
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222 |
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223 # ersatz for first/last pseudo-classes |
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224 def visit_admonition(self, node): |
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225 node['classes'].insert(0, 'admonition') |
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226 self.body.append(self.starttag(node, 'div')) |
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227 self.set_first_last(node) |
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228 |
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229 # author, authors: use <br> instead of paragraphs |
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230 def visit_author(self, node): |
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231 if isinstance(node.parent, nodes.authors): |
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232 if self.author_in_authors: |
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233 self.body.append('\n<br />') |
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234 else: |
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235 self.visit_docinfo_item(node, 'author') |
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236 |
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237 def depart_author(self, node): |
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238 if isinstance(node.parent, nodes.authors): |
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239 self.author_in_authors = True |
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240 else: |
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241 self.depart_docinfo_item() |
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242 |
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243 def visit_authors(self, node): |
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244 self.visit_docinfo_item(node, 'authors') |
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245 self.author_in_authors = False # initialize |
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246 |
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247 def depart_authors(self, node): |
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248 self.depart_docinfo_item() |
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249 |
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250 # use "width" argument insted of "style: 'width'": |
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251 def visit_colspec(self, node): |
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252 self.colspecs.append(node) |
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253 # "stubs" list is an attribute of the tgroup element: |
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254 node.parent.stubs.append(node.attributes.get('stub')) |
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255 # |
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256 def depart_colspec(self, node): |
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257 # write out <colgroup> when all colspecs are processed |
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258 if isinstance(node.next_node(descend=False, siblings=True), |
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259 nodes.colspec): |
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260 return |
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261 if 'colwidths-auto' in node.parent.parent['classes'] or ( |
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262 'colwidths-auto' in self.settings.table_style and |
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263 ('colwidths-given' not in node.parent.parent['classes'])): |
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264 return |
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265 total_width = sum(node['colwidth'] for node in self.colspecs) |
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266 self.body.append(self.starttag(node, 'colgroup')) |
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267 for node in self.colspecs: |
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268 colwidth = int(node['colwidth'] * 100.0 / total_width + 0.5) |
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269 self.body.append(self.emptytag(node, 'col', |
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270 width='%i%%' % colwidth)) |
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271 self.body.append('</colgroup>\n') |
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272 |
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273 # Compact lists: |
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274 # exclude definition lists and field lists (non-compact by default) |
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275 |
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276 def is_compactable(self, node): |
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277 return ('compact' in node['classes'] |
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278 or (self.settings.compact_lists |
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279 and 'open' not in node['classes'] |
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280 and (self.compact_simple |
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281 or self.topic_classes == ['contents'] |
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282 # TODO: self.in_contents |
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283 or self.check_simple_list(node)))) |
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284 |
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285 # citations: Use table for bibliographic references. |
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286 def visit_citation(self, node): |
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287 self.body.append(self.starttag(node, 'table', |
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288 CLASS='docutils citation', |
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289 frame="void", rules="none")) |
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290 self.body.append('<colgroup><col class="label" /><col /></colgroup>\n' |
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291 '<tbody valign="top">\n' |
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292 '<tr>') |
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293 self.footnote_backrefs(node) |
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294 |
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295 def depart_citation(self, node): |
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296 self.body.append('</td></tr>\n' |
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297 '</tbody>\n</table>\n') |
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298 |
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299 # insert classifier-delimiter (not required with CSS2) |
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300 def visit_classifier(self, node): |
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301 self.body.append(' <span class="classifier-delimiter">:</span> ') |
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302 self.body.append(self.starttag(node, 'span', '', CLASS='classifier')) |
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303 |
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304 # ersatz for first/last pseudo-classes |
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305 def visit_definition(self, node): |
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306 self.body.append('</dt>\n') |
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307 self.body.append(self.starttag(node, 'dd', '')) |
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308 self.set_first_last(node) |
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309 |
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310 # don't add "simple" class value |
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311 def visit_definition_list(self, node): |
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312 self.body.append(self.starttag(node, 'dl', CLASS='docutils')) |
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313 |
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314 # use a table for description lists |
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315 def visit_description(self, node): |
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316 self.body.append(self.starttag(node, 'td', '')) |
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317 self.set_first_last(node) |
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318 |
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319 def depart_description(self, node): |
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320 self.body.append('</td>') |
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321 |
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322 # use table for docinfo |
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323 def visit_docinfo(self, node): |
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324 self.context.append(len(self.body)) |
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325 self.body.append(self.starttag(node, 'table', |
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326 CLASS='docinfo', |
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327 frame="void", rules="none")) |
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328 self.body.append('<col class="docinfo-name" />\n' |
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329 '<col class="docinfo-content" />\n' |
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330 '<tbody valign="top">\n') |
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331 self.in_docinfo = True |
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332 |
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333 def depart_docinfo(self, node): |
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334 self.body.append('</tbody>\n</table>\n') |
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335 self.in_docinfo = False |
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336 start = self.context.pop() |
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337 self.docinfo = self.body[start:] |
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338 self.body = [] |
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339 |
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340 def visit_docinfo_item(self, node, name, meta=True): |
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341 if meta: |
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342 meta_tag = '<meta name="%s" content="%s" />\n' \ |
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343 % (name, self.attval(node.astext())) |
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344 self.add_meta(meta_tag) |
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345 self.body.append(self.starttag(node, 'tr', '')) |
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346 self.body.append('<th class="docinfo-name">%s:</th>\n<td>' |
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347 % self.language.labels[name]) |
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348 if len(node): |
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349 if isinstance(node[0], nodes.Element): |
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350 node[0]['classes'].append('first') |
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351 if isinstance(node[-1], nodes.Element): |
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352 node[-1]['classes'].append('last') |
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353 |
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354 def depart_docinfo_item(self): |
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355 self.body.append('</td></tr>\n') |
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356 |
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357 # add newline after opening tag |
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358 def visit_doctest_block(self, node): |
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359 self.body.append(self.starttag(node, 'pre', CLASS='doctest-block')) |
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360 |
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361 # insert an NBSP into empty cells, ersatz for first/last |
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362 def visit_entry(self, node): |
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363 writers._html_base.HTMLTranslator.visit_entry(self, node) |
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364 if len(node) == 0: # empty cell |
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365 self.body.append(' ') |
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366 self.set_first_last(node) |
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367 |
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368 # ersatz for first/last pseudo-classes |
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369 def visit_enumerated_list(self, node): |
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370 """ |
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371 The 'start' attribute does not conform to HTML 4.01's strict.dtd, but |
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372 cannot be emulated in CSS1 (HTML 5 reincludes it). |
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373 """ |
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374 atts = {} |
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375 if 'start' in node: |
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376 atts['start'] = node['start'] |
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377 if 'enumtype' in node: |
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378 atts['class'] = node['enumtype'] |
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379 # @@@ To do: prefix, suffix. How? Change prefix/suffix to a |
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380 # single "format" attribute? Use CSS2? |
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381 old_compact_simple = self.compact_simple |
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382 self.context.append((self.compact_simple, self.compact_p)) |
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383 self.compact_p = None |
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384 self.compact_simple = self.is_compactable(node) |
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385 if self.compact_simple and not old_compact_simple: |
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386 atts['class'] = (atts.get('class', '') + ' simple').strip() |
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387 self.body.append(self.starttag(node, 'ol', **atts)) |
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388 |
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389 def depart_enumerated_list(self, node): |
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390 self.compact_simple, self.compact_p = self.context.pop() |
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391 self.body.append('</ol>\n') |
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392 |
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393 # use table for field-list: |
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394 def visit_field(self, node): |
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395 self.body.append(self.starttag(node, 'tr', '', CLASS='field')) |
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396 |
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397 def depart_field(self, node): |
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398 self.body.append('</tr>\n') |
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399 |
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400 def visit_field_body(self, node): |
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401 self.body.append(self.starttag(node, 'td', '', CLASS='field-body')) |
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402 self.set_class_on_child(node, 'first', 0) |
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403 field = node.parent |
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404 if (self.compact_field_list or |
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405 isinstance(field.parent, nodes.docinfo) or |
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406 field.parent.index(field) == len(field.parent) - 1): |
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407 # If we are in a compact list, the docinfo, or if this is |
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408 # the last field of the field list, do not add vertical |
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409 # space after last element. |
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410 self.set_class_on_child(node, 'last', -1) |
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411 |
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412 def depart_field_body(self, node): |
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413 self.body.append('</td>\n') |
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414 |
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415 def visit_field_list(self, node): |
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416 self.context.append((self.compact_field_list, self.compact_p)) |
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417 self.compact_p = None |
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418 if 'compact' in node['classes']: |
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419 self.compact_field_list = True |
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420 elif (self.settings.compact_field_lists |
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421 and 'open' not in node['classes']): |
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422 self.compact_field_list = True |
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423 if self.compact_field_list: |
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424 for field in node: |
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425 field_body = field[-1] |
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426 assert isinstance(field_body, nodes.field_body) |
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427 children = [n for n in field_body |
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428 if not isinstance(n, nodes.Invisible)] |
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429 if not (len(children) == 0 or |
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430 len(children) == 1 and |
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431 isinstance(children[0], |
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432 (nodes.paragraph, nodes.line_block))): |
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433 self.compact_field_list = False |
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434 break |
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435 self.body.append(self.starttag(node, 'table', frame='void', |
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436 rules='none', |
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437 CLASS='docutils field-list')) |
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438 self.body.append('<col class="field-name" />\n' |
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439 '<col class="field-body" />\n' |
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440 '<tbody valign="top">\n') |
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441 |
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442 def depart_field_list(self, node): |
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443 self.body.append('</tbody>\n</table>\n') |
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444 self.compact_field_list, self.compact_p = self.context.pop() |
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445 |
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446 def visit_field_name(self, node): |
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447 atts = {} |
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448 if self.in_docinfo: |
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449 atts['class'] = 'docinfo-name' |
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450 else: |
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451 atts['class'] = 'field-name' |
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452 if ( self.settings.field_name_limit |
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453 and len(node.astext()) > self.settings.field_name_limit): |
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454 atts['colspan'] = 2 |
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455 self.context.append('</tr>\n' |
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456 + self.starttag(node.parent, 'tr', '', |
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457 CLASS='field') |
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458 + '<td> </td>') |
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459 else: |
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460 self.context.append('') |
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461 self.body.append(self.starttag(node, 'th', '', **atts)) |
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462 |
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463 def depart_field_name(self, node): |
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464 self.body.append(':</th>') |
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465 self.body.append(self.context.pop()) |
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466 |
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467 # use table for footnote text |
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468 def visit_footnote(self, node): |
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469 self.body.append(self.starttag(node, 'table', |
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470 CLASS='docutils footnote', |
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471 frame="void", rules="none")) |
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472 self.body.append('<colgroup><col class="label" /><col /></colgroup>\n' |
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473 '<tbody valign="top">\n' |
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474 '<tr>') |
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475 self.footnote_backrefs(node) |
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476 |
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477 def footnote_backrefs(self, node): |
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478 backlinks = [] |
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479 backrefs = node['backrefs'] |
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480 if self.settings.footnote_backlinks and backrefs: |
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481 if len(backrefs) == 1: |
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482 self.context.append('') |
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483 self.context.append('</a>') |
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484 self.context.append('<a class="fn-backref" href="#%s">' |
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485 % backrefs[0]) |
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486 else: |
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487 for (i, backref) in enumerate(backrefs, 1): |
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488 backlinks.append('<a class="fn-backref" href="#%s">%s</a>' |
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489 % (backref, i)) |
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490 self.context.append('<em>(%s)</em> ' % ', '.join(backlinks)) |
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491 self.context += ['', ''] |
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492 else: |
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493 self.context.append('') |
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494 self.context += ['', ''] |
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495 # If the node does not only consist of a label. |
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496 if len(node) > 1: |
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497 # If there are preceding backlinks, we do not set class |
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498 # 'first', because we need to retain the top-margin. |
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499 if not backlinks: |
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500 node[1]['classes'].append('first') |
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501 node[-1]['classes'].append('last') |
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502 |
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503 def depart_footnote(self, node): |
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504 self.body.append('</td></tr>\n' |
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505 '</tbody>\n</table>\n') |
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506 |
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507 # insert markers in text as pseudo-classes are not supported in CSS1: |
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508 def visit_footnote_reference(self, node): |
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509 href = '#' + node['refid'] |
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510 format = self.settings.footnote_references |
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511 if format == 'brackets': |
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512 suffix = '[' |
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513 self.context.append(']') |
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514 else: |
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515 assert format == 'superscript' |
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516 suffix = '<sup>' |
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517 self.context.append('</sup>') |
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518 self.body.append(self.starttag(node, 'a', suffix, |
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519 CLASS='footnote-reference', href=href)) |
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520 |
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521 def depart_footnote_reference(self, node): |
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522 self.body.append(self.context.pop() + '</a>') |
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523 |
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524 # just pass on generated text |
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525 def visit_generated(self, node): |
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526 pass |
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527 |
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528 # Image types to place in an <object> element |
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529 # SVG not supported by IE up to version 8 |
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530 # (html4css1 strives for IE6 compatibility) |
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531 object_image_types = {'.svg': 'image/svg+xml', |
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532 '.swf': 'application/x-shockwave-flash'} |
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533 |
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534 # use table for footnote text, |
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535 # context added in footnote_backrefs. |
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536 def visit_label(self, node): |
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537 self.body.append(self.starttag(node, 'td', '%s[' % self.context.pop(), |
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538 CLASS='label')) |
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539 |
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540 def depart_label(self, node): |
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541 self.body.append(']%s</td><td>%s' % (self.context.pop(), self.context.pop())) |
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542 |
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543 |
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544 # ersatz for first/last pseudo-classes |
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545 def visit_list_item(self, node): |
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546 self.body.append(self.starttag(node, 'li', '')) |
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547 if len(node): |
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548 node[0]['classes'].append('first') |
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549 |
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550 # use <tt> (not supported by HTML5), |
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551 # cater for limited styling options in CSS1 using hard-coded NBSPs |
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552 def visit_literal(self, node): |
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553 # special case: "code" role |
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554 classes = node.get('classes', []) |
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555 if 'code' in classes: |
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556 # filter 'code' from class arguments |
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557 node['classes'] = [cls for cls in classes if cls != 'code'] |
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558 self.body.append(self.starttag(node, 'code', '')) |
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559 return |
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560 self.body.append( |
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561 self.starttag(node, 'tt', '', CLASS='docutils literal')) |
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562 text = node.astext() |
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563 for token in self.words_and_spaces.findall(text): |
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564 if token.strip(): |
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565 # Protect text like "--an-option" and the regular expression |
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566 # ``[+]?(\d+(\.\d*)?|\.\d+)`` from bad line wrapping |
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567 if self.in_word_wrap_point.search(token): |
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568 self.body.append('<span class="pre">%s</span>' |
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569 % self.encode(token)) |
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570 else: |
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571 self.body.append(self.encode(token)) |
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572 elif token in ('\n', ' '): |
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573 # Allow breaks at whitespace: |
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574 self.body.append(token) |
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575 else: |
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576 # Protect runs of multiple spaces; the last space can wrap: |
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577 self.body.append(' ' * (len(token) - 1) + ' ') |
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578 self.body.append('</tt>') |
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579 # Content already processed: |
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580 raise nodes.SkipNode |
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581 |
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582 # add newline after opening tag, don't use <code> for code |
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583 def visit_literal_block(self, node): |
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584 self.body.append(self.starttag(node, 'pre', CLASS='literal-block')) |
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585 |
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586 # add newline |
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587 def depart_literal_block(self, node): |
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588 self.body.append('\n</pre>\n') |
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589 |
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590 # use table for option list |
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591 def visit_option_group(self, node): |
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592 atts = {} |
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593 if ( self.settings.option_limit |
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594 and len(node.astext()) > self.settings.option_limit): |
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595 atts['colspan'] = 2 |
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596 self.context.append('</tr>\n<tr><td> </td>') |
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597 else: |
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598 self.context.append('') |
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599 self.body.append( |
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600 self.starttag(node, 'td', CLASS='option-group', **atts)) |
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601 self.body.append('<kbd>') |
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602 self.context.append(0) # count number of options |
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603 |
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604 def depart_option_group(self, node): |
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605 self.context.pop() |
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606 self.body.append('</kbd></td>\n') |
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607 self.body.append(self.context.pop()) |
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608 |
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609 def visit_option_list(self, node): |
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610 self.body.append( |
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611 self.starttag(node, 'table', CLASS='docutils option-list', |
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612 frame="void", rules="none")) |
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613 self.body.append('<col class="option" />\n' |
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614 '<col class="description" />\n' |
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615 '<tbody valign="top">\n') |
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616 |
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617 def depart_option_list(self, node): |
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618 self.body.append('</tbody>\n</table>\n') |
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619 |
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620 def visit_option_list_item(self, node): |
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621 self.body.append(self.starttag(node, 'tr', '')) |
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622 |
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623 def depart_option_list_item(self, node): |
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624 self.body.append('</tr>\n') |
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625 |
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626 # Omit <p> tags to produce visually compact lists (less vertical |
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627 # whitespace) as CSS styling requires CSS2. |
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628 def should_be_compact_paragraph(self, node): |
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629 """ |
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630 Determine if the <p> tags around paragraph ``node`` can be omitted. |
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631 """ |
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632 if (isinstance(node.parent, nodes.document) or |
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633 isinstance(node.parent, nodes.compound)): |
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634 # Never compact paragraphs in document or compound. |
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635 return False |
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636 for key, value in node.attlist(): |
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637 if (node.is_not_default(key) and |
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638 not (key == 'classes' and value in |
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639 ([], ['first'], ['last'], ['first', 'last']))): |
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640 # Attribute which needs to survive. |
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641 return False |
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642 first = isinstance(node.parent[0], nodes.label) # skip label |
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643 for child in node.parent.children[first:]: |
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644 # only first paragraph can be compact |
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645 if isinstance(child, nodes.Invisible): |
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646 continue |
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647 if child is node: |
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648 break |
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649 return False |
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650 parent_length = len([n for n in node.parent if not isinstance( |
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651 n, (nodes.Invisible, nodes.label))]) |
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652 if ( self.compact_simple |
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653 or self.compact_field_list |
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654 or self.compact_p and parent_length == 1): |
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655 return True |
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656 return False |
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657 |
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658 def visit_paragraph(self, node): |
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659 if self.should_be_compact_paragraph(node): |
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660 self.context.append('') |
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661 else: |
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662 self.body.append(self.starttag(node, 'p', '')) |
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663 self.context.append('</p>\n') |
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664 |
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665 def depart_paragraph(self, node): |
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666 self.body.append(self.context.pop()) |
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|
667 |
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|
668 # ersatz for first/last pseudo-classes |
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669 def visit_sidebar(self, node): |
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670 self.body.append( |
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671 self.starttag(node, 'div', CLASS='sidebar')) |
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672 self.set_first_last(node) |
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673 self.in_sidebar = True |
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674 |
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|
675 # <sub> not allowed in <pre> |
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676 def visit_subscript(self, node): |
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677 if isinstance(node.parent, nodes.literal_block): |
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678 self.body.append(self.starttag(node, 'span', '', |
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|
679 CLASS='subscript')) |
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680 else: |
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681 self.body.append(self.starttag(node, 'sub', '')) |
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682 |
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683 def depart_subscript(self, node): |
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684 if isinstance(node.parent, nodes.literal_block): |
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685 self.body.append('</span>') |
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686 else: |
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687 self.body.append('</sub>') |
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688 |
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689 # Use <h*> for subtitles (deprecated in HTML 5) |
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690 def visit_subtitle(self, node): |
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691 if isinstance(node.parent, nodes.sidebar): |
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692 self.body.append(self.starttag(node, 'p', '', |
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693 CLASS='sidebar-subtitle')) |
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694 self.context.append('</p>\n') |
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695 elif isinstance(node.parent, nodes.document): |
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696 self.body.append(self.starttag(node, 'h2', '', CLASS='subtitle')) |
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697 self.context.append('</h2>\n') |
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698 self.in_document_title = len(self.body) |
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699 elif isinstance(node.parent, nodes.section): |
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700 tag = 'h%s' % (self.section_level + self.initial_header_level - 1) |
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701 self.body.append( |
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702 self.starttag(node, tag, '', CLASS='section-subtitle') + |
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703 self.starttag({}, 'span', '', CLASS='section-subtitle')) |
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|
704 self.context.append('</span></%s>\n' % tag) |
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705 |
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|
706 def depart_subtitle(self, node): |
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707 self.body.append(self.context.pop()) |
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708 if self.in_document_title: |
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709 self.subtitle = self.body[self.in_document_title:-1] |
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710 self.in_document_title = 0 |
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|
711 self.body_pre_docinfo.extend(self.body) |
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712 self.html_subtitle.extend(self.body) |
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|
713 del self.body[:] |
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|
714 |
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|
715 # <sup> not allowed in <pre> in HTML 4 |
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|
716 def visit_superscript(self, node): |
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717 if isinstance(node.parent, nodes.literal_block): |
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718 self.body.append(self.starttag(node, 'span', '', |
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|
719 CLASS='superscript')) |
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|
720 else: |
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|
721 self.body.append(self.starttag(node, 'sup', '')) |
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|
722 |
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|
723 def depart_superscript(self, node): |
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|
724 if isinstance(node.parent, nodes.literal_block): |
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|
725 self.body.append('</span>') |
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|
726 else: |
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|
727 self.body.append('</sup>') |
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parents:
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|
728 |
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|
729 # <tt> element deprecated in HTML 5 |
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shellac
parents:
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|
730 def visit_system_message(self, node): |
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shellac
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|
731 self.body.append(self.starttag(node, 'div', CLASS='system-message')) |
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shellac
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|
732 self.body.append('<p class="system-message-title">') |
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shellac
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|
733 backref_text = '' |
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shellac
parents:
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|
734 if len(node['backrefs']): |
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shellac
parents:
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|
735 backrefs = node['backrefs'] |
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|
736 if len(backrefs) == 1: |
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shellac
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|
737 backref_text = ('; <em><a href="#%s">backlink</a></em>' |
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shellac
parents:
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|
738 % backrefs[0]) |
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|
739 else: |
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parents:
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|
740 i = 1 |
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|
741 backlinks = [] |
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|
742 for backref in backrefs: |
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shellac
parents:
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|
743 backlinks.append('<a href="#%s">%s</a>' % (backref, i)) |
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|
744 i += 1 |
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shellac
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|
745 backref_text = ('; <em>backlinks: %s</em>' |
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shellac
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|
746 % ', '.join(backlinks)) |
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|
747 if node.hasattr('line'): |
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shellac
parents:
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|
748 line = ', line %s' % node['line'] |
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|
749 else: |
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shellac
parents:
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|
750 line = '' |
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shellac
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|
751 self.body.append('System Message: %s/%s ' |
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shellac
parents:
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|
752 '(<tt class="docutils">%s</tt>%s)%s</p>\n' |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
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|
753 % (node['type'], node['level'], |
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shellac
parents:
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|
754 self.encode(node['source']), line, backref_text)) |
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shellac
parents:
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|
755 |
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shellac
parents:
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|
756 # "hard coded" border setting |
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shellac
parents:
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|
757 def visit_table(self, node): |
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shellac
parents:
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|
758 self.context.append(self.compact_p) |
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759 self.compact_p = True |
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parents:
diff
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|
760 atts = {'border': 1} |
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shellac
parents:
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|
761 classes = ['docutils', self.settings.table_style] |
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shellac
parents:
diff
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|
762 if 'align' in node: |
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shellac
parents:
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|
763 classes.append('align-%s' % node['align']) |
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|
764 if 'width' in node: |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
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parents:
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|
765 atts['style'] = 'width: %s' % node['width'] |
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shellac
parents:
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|
766 self.body.append( |
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shellac
parents:
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|
767 self.starttag(node, 'table', CLASS=' '.join(classes), **atts)) |
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shellac
parents:
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|
768 |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
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|
769 def depart_table(self, node): |
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shellac
parents:
diff
changeset
|
770 self.compact_p = self.context.pop() |
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"planemo upload commit 60cee0fc7c0cda8592644e1aad72851dec82c959"
shellac
parents:
diff
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|
771 self.body.append('</table>\n') |
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shellac
parents:
diff
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|
772 |
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773 # hard-coded vertical alignment |
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774 def visit_tbody(self, node): |
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775 self.body.append(self.starttag(node, 'tbody', valign='top')) |
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776 # |
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777 def depart_tbody(self, node): |
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778 self.body.append('</tbody>\n') |
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779 |
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780 # hard-coded vertical alignment |
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781 def visit_thead(self, node): |
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782 self.body.append(self.starttag(node, 'thead', valign='bottom')) |
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783 # |
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784 def depart_thead(self, node): |
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785 self.body.append('</thead>\n') |
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786 |
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787 |
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788 class SimpleListChecker(writers._html_base.SimpleListChecker): |
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789 |
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790 """ |
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791 Raise `nodes.NodeFound` if non-simple list item is encountered. |
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792 |
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793 Here "simple" means a list item containing nothing other than a single |
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794 paragraph, a simple list, or a paragraph followed by a simple list. |
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795 """ |
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796 |
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797 def visit_list_item(self, node): |
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798 children = [] |
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799 for child in node.children: |
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800 if not isinstance(child, nodes.Invisible): |
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801 children.append(child) |
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802 if (children and isinstance(children[0], nodes.paragraph) |
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803 and (isinstance(children[-1], nodes.bullet_list) |
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804 or isinstance(children[-1], nodes.enumerated_list))): |
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805 children.pop() |
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806 if len(children) <= 1: |
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807 return |
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808 else: |
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809 raise nodes.NodeFound |
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810 |
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811 # def visit_bullet_list(self, node): |
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812 # pass |
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813 |
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814 # def visit_enumerated_list(self, node): |
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815 # pass |
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816 |
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817 def visit_paragraph(self, node): |
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818 raise nodes.SkipNode |
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819 |
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820 def visit_definition_list(self, node): |
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821 raise nodes.NodeFound |
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822 |
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823 def visit_docinfo(self, node): |
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824 raise nodes.NodeFound |