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annotate venv/lib/python2.7/site-packages/docutils/transforms/frontmatter.py @ 0:d67268158946 draft

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planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
author bcclaywell
date Mon, 12 Oct 2015 17:43:33 -0400
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1 # $Id: frontmatter.py 7595 2013-01-21 17:33:56Z milde $
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2 # Author: David Goodger, Ueli Schlaepfer <goodger@python.org>
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3 # Copyright: This module has been placed in the public domain.
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4
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5 """
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6 Transforms related to the front matter of a document or a section
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7 (information found before the main text):
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8
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9 - `DocTitle`: Used to transform a lone top level section's title to
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10 the document title, promote a remaining lone top-level section's
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11 title to the document subtitle, and determine the document's title
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12 metadata (document['title']) based on the document title and/or the
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13 "title" setting.
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14
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15 - `SectionSubTitle`: Used to transform a lone subsection into a
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16 subtitle.
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17
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18 - `DocInfo`: Used to transform a bibliographic field list into docinfo
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19 elements.
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20 """
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21
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22 __docformat__ = 'reStructuredText'
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23
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24 import re
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25 from docutils import nodes, utils
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26 from docutils.transforms import TransformError, Transform
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27
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28
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29 class TitlePromoter(Transform):
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30
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31 """
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32 Abstract base class for DocTitle and SectionSubTitle transforms.
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33 """
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34
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35 def promote_title(self, node):
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36 """
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37 Transform the following tree::
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38
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39 <node>
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40 <section>
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41 <title>
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42 ...
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43
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44 into ::
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45
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46 <node>
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47 <title>
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48 ...
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49
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50 `node` is normally a document.
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51 """
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52 # Type check
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53 if not isinstance(node, nodes.Element):
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54 raise TypeError, 'node must be of Element-derived type.'
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55
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56 # `node` must not have a title yet.
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57 assert not (len(node) and isinstance(node[0], nodes.title))
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58 section, index = self.candidate_index(node)
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59 if index is None:
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60 return None
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61
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62 # Transfer the section's attributes to the node:
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63 # NOTE: Change second parameter to False to NOT replace
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64 # attributes that already exist in node with those in
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65 # section
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66 # NOTE: Remove third parameter to NOT copy the 'source'
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67 # attribute from section
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68 node.update_all_atts_concatenating(section, True, True)
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69
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70 # setup_child is called automatically for all nodes.
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71 node[:] = (section[:1] # section title
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72 + node[:index] # everything that was in the
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73 # node before the section
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74 + section[1:]) # everything that was in the section
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75 assert isinstance(node[0], nodes.title)
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76 return 1
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77
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78 def promote_subtitle(self, node):
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79 """
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80 Transform the following node tree::
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81
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82 <node>
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83 <title>
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84 <section>
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85 <title>
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86 ...
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87
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88 into ::
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89
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90 <node>
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91 <title>
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92 <subtitle>
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93 ...
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94 """
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95 # Type check
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96 if not isinstance(node, nodes.Element):
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97 raise TypeError, 'node must be of Element-derived type.'
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98
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99 subsection, index = self.candidate_index(node)
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100 if index is None:
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101 return None
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102 subtitle = nodes.subtitle()
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103
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104 # Transfer the subsection's attributes to the new subtitle
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105 # NOTE: Change second parameter to False to NOT replace
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106 # attributes that already exist in node with those in
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107 # section
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108 # NOTE: Remove third parameter to NOT copy the 'source'
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109 # attribute from section
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110 subtitle.update_all_atts_concatenating(subsection, True, True)
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111
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112 # Transfer the contents of the subsection's title to the
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113 # subtitle:
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114 subtitle[:] = subsection[0][:]
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115 node[:] = (node[:1] # title
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116 + [subtitle]
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117 # everything that was before the section:
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118 + node[1:index]
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119 # everything that was in the subsection:
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120 + subsection[1:])
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121 return 1
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122
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123 def candidate_index(self, node):
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124 """
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125 Find and return the promotion candidate and its index.
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126
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127 Return (None, None) if no valid candidate was found.
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128 """
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129 index = node.first_child_not_matching_class(
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130 nodes.PreBibliographic)
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131 if index is None or len(node) > (index + 1) or \
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132 not isinstance(node[index], nodes.section):
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133 return None, None
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134 else:
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135 return node[index], index
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136
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137
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138 class DocTitle(TitlePromoter):
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139
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140 """
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141 In reStructuredText_, there is no way to specify a document title
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142 and subtitle explicitly. Instead, we can supply the document title
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143 (and possibly the subtitle as well) implicitly, and use this
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144 two-step transform to "raise" or "promote" the title(s) (and their
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145 corresponding section contents) to the document level.
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146
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147 1. If the document contains a single top-level section as its
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148 first non-comment element, the top-level section's title
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149 becomes the document's title, and the top-level section's
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150 contents become the document's immediate contents. The lone
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151 top-level section header must be the first non-comment element
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152 in the document.
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153
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154 For example, take this input text::
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155
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156 =================
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157 Top-Level Title
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158 =================
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159
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160 A paragraph.
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161
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162 Once parsed, it looks like this::
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163
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164 <document>
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165 <section names="top-level title">
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166 <title>
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167 Top-Level Title
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168 <paragraph>
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169 A paragraph.
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170
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171 After running the DocTitle transform, we have::
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172
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173 <document names="top-level title">
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174 <title>
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175 Top-Level Title
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176 <paragraph>
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177 A paragraph.
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178
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179 2. If step 1 successfully determines the document title, we
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180 continue by checking for a subtitle.
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181
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182 If the lone top-level section itself contains a single
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183 second-level section as its first non-comment element, that
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184 section's title is promoted to the document's subtitle, and
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185 that section's contents become the document's immediate
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186 contents. Given this input text::
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187
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188 =================
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189 Top-Level Title
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190 =================
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191
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192 Second-Level Title
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193 ~~~~~~~~~~~~~~~~~~
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194
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195 A paragraph.
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196
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197 After parsing and running the Section Promotion transform, the
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198 result is::
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199
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200 <document names="top-level title">
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201 <title>
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202 Top-Level Title
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203 <subtitle names="second-level title">
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204 Second-Level Title
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205 <paragraph>
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206 A paragraph.
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207
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208 (Note that the implicit hyperlink target generated by the
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209 "Second-Level Title" is preserved on the "subtitle" element
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210 itself.)
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211
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212 Any comment elements occurring before the document title or
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213 subtitle are accumulated and inserted as the first body elements
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214 after the title(s).
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215
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216 This transform also sets the document's metadata title
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217 (document['title']).
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218
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219 .. _reStructuredText: http://docutils.sf.net/rst.html
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220 """
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221
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222 default_priority = 320
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223
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224 def set_metadata(self):
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225 """
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226 Set document['title'] metadata title from the following
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227 sources, listed in order of priority:
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228
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229 * Existing document['title'] attribute.
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230 * "title" setting.
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231 * Document title node (as promoted by promote_title).
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232 """
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233 if not self.document.hasattr('title'):
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234 if self.document.settings.title is not None:
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235 self.document['title'] = self.document.settings.title
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236 elif len(self.document) and isinstance(self.document[0], nodes.title):
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237 self.document['title'] = self.document[0].astext()
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238
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239 def apply(self):
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240 if getattr(self.document.settings, 'doctitle_xform', 1):
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241 # promote_(sub)title defined in TitlePromoter base class.
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242 if self.promote_title(self.document):
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243 # If a title has been promoted, also try to promote a
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244 # subtitle.
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245 self.promote_subtitle(self.document)
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246 # Set document['title'].
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247 self.set_metadata()
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248
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249
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250 class SectionSubTitle(TitlePromoter):
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251
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252 """
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253 This works like document subtitles, but for sections. For example, ::
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254
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255 <section>
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256 <title>
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257 Title
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258 <section>
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259 <title>
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260 Subtitle
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261 ...
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262
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263 is transformed into ::
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264
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265 <section>
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266 <title>
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267 Title
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268 <subtitle>
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269 Subtitle
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270 ...
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271
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272 For details refer to the docstring of DocTitle.
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273 """
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274
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275 default_priority = 350
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276
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277 def apply(self):
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278 if not getattr(self.document.settings, 'sectsubtitle_xform', 1):
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279 return
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280 for section in self.document.traverse(nodes.section):
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281 # On our way through the node tree, we are deleting
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282 # sections, but we call self.promote_subtitle for those
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283 # sections nonetheless. To do: Write a test case which
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284 # shows the problem and discuss on Docutils-develop.
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285 self.promote_subtitle(section)
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286
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287
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288 class DocInfo(Transform):
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289
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290 """
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291 This transform is specific to the reStructuredText_ markup syntax;
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292 see "Bibliographic Fields" in the `reStructuredText Markup
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293 Specification`_ for a high-level description. This transform
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294 should be run *after* the `DocTitle` transform.
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295
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296 Given a field list as the first non-comment element after the
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297 document title and subtitle (if present), registered bibliographic
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298 field names are transformed to the corresponding DTD elements,
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299 becoming child elements of the "docinfo" element (except for a
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300 dedication and/or an abstract, which become "topic" elements after
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301 "docinfo").
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302
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303 For example, given this document fragment after parsing::
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304
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305 <document>
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306 <title>
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307 Document Title
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308 <field_list>
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309 <field>
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310 <field_name>
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311 Author
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312 <field_body>
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313 <paragraph>
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314 A. Name
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315 <field>
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316 <field_name>
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317 Status
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318 <field_body>
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319 <paragraph>
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320 $RCSfile$
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321 ...
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322
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323 After running the bibliographic field list transform, the
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324 resulting document tree would look like this::
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325
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326 <document>
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327 <title>
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328 Document Title
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329 <docinfo>
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330 <author>
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331 A. Name
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332 <status>
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333 frontmatter.py
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334 ...
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335
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336 The "Status" field contained an expanded RCS keyword, which is
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337 normally (but optionally) cleaned up by the transform. The sole
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338 contents of the field body must be a paragraph containing an
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339 expanded RCS keyword of the form "$keyword: expansion text $". Any
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340 RCS keyword can be processed in any bibliographic field. The
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341 dollar signs and leading RCS keyword name are removed. Extra
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342 processing is done for the following RCS keywords:
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343
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344 - "RCSfile" expands to the name of the file in the RCS or CVS
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345 repository, which is the name of the source file with a ",v"
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346 suffix appended. The transform will remove the ",v" suffix.
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347
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348 - "Date" expands to the format "YYYY/MM/DD hh:mm:ss" (in the UTC
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349 time zone). The RCS Keywords transform will extract just the
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350 date itself and transform it to an ISO 8601 format date, as in
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351 "2000-12-31".
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352
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353 (Since the source file for this text is itself stored under CVS,
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354 we can't show an example of the "Date" RCS keyword because we
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355 can't prevent any RCS keywords used in this explanation from
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356 being expanded. Only the "RCSfile" keyword is stable; its
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357 expansion text changes only if the file name changes.)
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358
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359 .. _reStructuredText: http://docutils.sf.net/rst.html
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360 .. _reStructuredText Markup Specification:
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361 http://docutils.sf.net/docs/ref/rst/restructuredtext.html
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362 """
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363
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364 default_priority = 340
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365
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366 biblio_nodes = {
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367 'author': nodes.author,
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368 'authors': nodes.authors,
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369 'organization': nodes.organization,
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370 'address': nodes.address,
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371 'contact': nodes.contact,
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372 'version': nodes.version,
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373 'revision': nodes.revision,
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374 'status': nodes.status,
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375 'date': nodes.date,
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376 'copyright': nodes.copyright,
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377 'dedication': nodes.topic,
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378 'abstract': nodes.topic}
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379 """Canonical field name (lowcased) to node class name mapping for
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380 bibliographic fields (field_list)."""
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381
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382 def apply(self):
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383 if not getattr(self.document.settings, 'docinfo_xform', 1):
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384 return
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385 document = self.document
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386 index = document.first_child_not_matching_class(
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387 nodes.PreBibliographic)
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388 if index is None:
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389 return
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390 candidate = document[index]
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391 if isinstance(candidate, nodes.field_list):
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bcclaywell
parents:
diff changeset
392 biblioindex = document.first_child_not_matching_class(
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
393 (nodes.Titular, nodes.Decorative))
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bcclaywell
parents:
diff changeset
394 nodelist = self.extract_bibliographic(candidate)
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bcclaywell
parents:
diff changeset
395 del document[index] # untransformed field list (candidate)
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bcclaywell
parents:
diff changeset
396 document[biblioindex:biblioindex] = nodelist
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bcclaywell
parents:
diff changeset
397
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
398 def extract_bibliographic(self, field_list):
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bcclaywell
parents:
diff changeset
399 docinfo = nodes.docinfo()
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bcclaywell
parents:
diff changeset
400 bibliofields = self.language.bibliographic_fields
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bcclaywell
parents:
diff changeset
401 labels = self.language.labels
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
402 topics = {'dedication': None, 'abstract': None}
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
403 for field in field_list:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
404 try:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
405 name = field[0][0].astext()
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
406 normedname = nodes.fully_normalize_name(name)
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bcclaywell
parents:
diff changeset
407 if not (len(field) == 2 and normedname in bibliofields
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
408 and self.check_empty_biblio_field(field, name)):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
409 raise TransformError
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
410 canonical = bibliofields[normedname]
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bcclaywell
parents:
diff changeset
411 biblioclass = self.biblio_nodes[canonical]
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bcclaywell
parents:
diff changeset
412 if issubclass(biblioclass, nodes.TextElement):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
413 if not self.check_compound_biblio_field(field, name):
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bcclaywell
parents:
diff changeset
414 raise TransformError
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
415 utils.clean_rcs_keywords(
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
416 field[1][0], self.rcs_keyword_substitutions)
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bcclaywell
parents:
diff changeset
417 docinfo.append(biblioclass('', '', *field[1][0]))
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bcclaywell
parents:
diff changeset
418 elif issubclass(biblioclass, nodes.authors):
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bcclaywell
parents:
diff changeset
419 self.extract_authors(field, name, docinfo)
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bcclaywell
parents:
diff changeset
420 elif issubclass(biblioclass, nodes.topic):
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bcclaywell
parents:
diff changeset
421 if topics[canonical]:
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bcclaywell
parents:
diff changeset
422 field[-1] += self.document.reporter.warning(
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
423 'There can only be one "%s" field.' % name,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
424 base_node=field)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
425 raise TransformError
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
426 title = nodes.title(name, labels[canonical])
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bcclaywell
parents:
diff changeset
427 topics[canonical] = biblioclass(
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
428 '', title, classes=[canonical], *field[1].children)
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bcclaywell
parents:
diff changeset
429 else:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
430 docinfo.append(biblioclass('', *field[1].children))
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
431 except TransformError:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
432 if len(field[-1]) == 1 \
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
433 and isinstance(field[-1][0], nodes.paragraph):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
434 utils.clean_rcs_keywords(
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
435 field[-1][0], self.rcs_keyword_substitutions)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
436 docinfo.append(field)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
437 nodelist = []
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
438 if len(docinfo) != 0:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
439 nodelist.append(docinfo)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
440 for name in ('dedication', 'abstract'):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
441 if topics[name]:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
442 nodelist.append(topics[name])
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
443 return nodelist
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
444
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
445 def check_empty_biblio_field(self, field, name):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
446 if len(field[-1]) < 1:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
447 field[-1] += self.document.reporter.warning(
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
448 'Cannot extract empty bibliographic field "%s".' % name,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
449 base_node=field)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
450 return None
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
451 return 1
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
452
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
453 def check_compound_biblio_field(self, field, name):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
454 if len(field[-1]) > 1:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
455 field[-1] += self.document.reporter.warning(
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
456 'Cannot extract compound bibliographic field "%s".' % name,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
457 base_node=field)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
458 return None
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
459 if not isinstance(field[-1][0], nodes.paragraph):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
460 field[-1] += self.document.reporter.warning(
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
461 'Cannot extract bibliographic field "%s" containing '
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
462 'anything other than a single paragraph.' % name,
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
463 base_node=field)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
464 return None
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
465 return 1
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
466
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
467 rcs_keyword_substitutions = [
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
468 (re.compile(r'\$' r'Date: (\d\d\d\d)[-/](\d\d)[-/](\d\d)[ T][\d:]+'
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
469 r'[^$]* \$', re.IGNORECASE), r'\1-\2-\3'),
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
470 (re.compile(r'\$' r'RCSfile: (.+),v \$', re.IGNORECASE), r'\1'),
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
471 (re.compile(r'\$[a-zA-Z]+: (.+) \$'), r'\1'),]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
472
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
473 def extract_authors(self, field, name, docinfo):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
474 try:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
475 if len(field[1]) == 1:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
476 if isinstance(field[1][0], nodes.paragraph):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
477 authors = self.authors_from_one_paragraph(field)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
478 elif isinstance(field[1][0], nodes.bullet_list):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
479 authors = self.authors_from_bullet_list(field)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
480 else:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
481 raise TransformError
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
482 else:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
483 authors = self.authors_from_paragraphs(field)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
484 authornodes = [nodes.author('', '', *author)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
485 for author in authors if author]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
486 if len(authornodes) >= 1:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
487 docinfo.append(nodes.authors('', *authornodes))
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
488 else:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
489 raise TransformError
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
490 except TransformError:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
491 field[-1] += self.document.reporter.warning(
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
492 'Bibliographic field "%s" incompatible with extraction: '
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
493 'it must contain either a single paragraph (with authors '
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
494 'separated by one of "%s"), multiple paragraphs (one per '
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
495 'author), or a bullet list with one paragraph (one author) '
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
496 'per item.'
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
497 % (name, ''.join(self.language.author_separators)),
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
498 base_node=field)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
499 raise
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
500
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
501 def authors_from_one_paragraph(self, field):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
502 text = field[1][0].astext().strip()
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
503 if not text:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
504 raise TransformError
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
505 for authorsep in self.language.author_separators:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
506 authornames = text.split(authorsep)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
507 if len(authornames) > 1:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
508 break
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
509 authornames = [author.strip() for author in authornames]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
510 authors = [[nodes.Text(author)] for author in authornames if author]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
511 return authors
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
512
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
513 def authors_from_bullet_list(self, field):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
514 authors = []
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
515 for item in field[1][0]:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
516 if len(item) != 1 or not isinstance(item[0], nodes.paragraph):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
517 raise TransformError
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
518 authors.append(item[0].children)
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
519 if not authors:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
520 raise TransformError
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
521 return authors
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
522
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
523 def authors_from_paragraphs(self, field):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
524 for item in field[1]:
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
525 if not isinstance(item, nodes.paragraph):
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
526 raise TransformError
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
527 authors = [item.children for item in field[1]]
d67268158946 planemo upload commit a3f181f5f126803c654b3a66dd4e83a48f7e203b
bcclaywell
parents:
diff changeset
528 return authors