Module: Asciidoctor::Rfc::V2::Base

Included in:
Converter
Defined in:
lib/asciidoctor/rfc/v2/base.rb

Instance Method Summary collapse

Instance Method Details

#cleanup(doc) ⇒ Object

clean up XML



289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
 
# File 'lib/asciidoctor/rfc/v2/base.rb', line 289

def cleanup(doc)
  xmldoc = Nokogiri::XML(doc) do |config|
    config.noent
  end

  # any crefs that are direct children of section should become children of the preceding
  # paragraph, if it exists; otherwise, they need to be wrapped in a paragraph
  crefs = xmldoc.xpath("//cref")
  crefs.each do |cref|
    if cref.parent.name == "section"
      prev = cref.previous_element
      if !prev.nil? && prev.name == "t"
        cref.parent = prev
      else
        t = Nokogiri::XML::Element.new("t", xmldoc)
        cref.before(t)
        cref.parent = t
      end
    end
  end
  # any instances of spanx must be stripped of any internal tags
  spanxs = xmldoc.xpath("//spanx[descendant::*]")
  while !spanxs.empty?
    spanx = spanxs[0]
    spanx_text = ""
    spanx.traverse do |node|
      spanx_text = spanx_text + node.text.gsub(/<[^>]+>/, "") if node.text?
    end
    spanx.children = spanx_text
    spanxs = xmldoc.xpath("//spanx[descendant::*]")
  end

  xmldoc.root = merge_vspace(xmldoc.root)
  xmldoc = smart_quote_cleanup(xmldoc) unless $smart_quotes
  xmldoc.to_xml(encoding: "US-ASCII")
end

#document(node) ⇒ Object

Syntax:

=Title
Author
:status
:consensus
:name
:number

:ipr
:obsoletes
:updates
:submissionType
:indexInclude
:ipr-extract
:sort-refs
:sym-refs
:toc-include

ABSTRACT

NOTEs

==first title
CONTENT

[bibliography] # start of back matter
== Bibliography

[appendix] # start of back matter if not already started
== Appendix



39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
 
# File 'lib/asciidoctor/rfc/v2/base.rb', line 39

def document(node)
  $seen_back_matter = false
  $smart_quotes = (node.attr("smart-quotes") != "false")
  $inline_definition_lists = (node.attr("inline-definition-lists") == "true")

  result = []
  result << '<?xml version="1.0" encoding="UTF-8"?>'

  is_rfc = node.attr("doctype") == "rfc"

  consensus_value = {
    "false" => "no",
    "true" => "yes",
  }[node.attr("consensus")] || node.attr("consensus")

  category = node.attr("status")
  category = "info" if category == "informational"
  category = "std" if category == "standard"
  category = "exp" if category == "experimental"

  rfc_attributes = {
    ipr:            node.attr("ipr"),
    obsoletes:      node.attr("obsoletes"),
    updates:        node.attr("updates"),
    category:       category,
    consensus:      consensus_value,
    submissionType: node.attr("submission-type") || "IETF",
    iprExtract:     node.attr("ipr-extract"),
    docName:        (node.attr("name") unless is_rfc),
    number:         (node.attr("name") if is_rfc),
    seriesNo:       node.attr("series-no"),
    "xml:lang":     node.attr("xml-lang"),
  }

  rfc_open = noko { |xml| xml.rfc **attr_code(rfc_attributes) }.join.gsub(/\/>$/, ">")
  result << rfc_open

  result << noko { |xml| front node, xml }
  result.last.last.gsub! /<\/front>$/, "" # FIXME: this is a hack!
  result << "</front><middle1>"

  result << node.content if node.blocks?
  result << ($seen_back_matter ? "</back>" : "</middle>")
  result << "</rfc>"

  # <middle> needs to move after preamble
  result = result.flatten
  result = if result.any? { |e| e =~ /<\/front><middle>/ } && result.any? { |e| e =~ /<\/front><middle1>/ }
             result.reject { |e| e =~ /<\/front><middle1>/ }
           else
             result.map { |e| e =~ /<\/front><middle1>/ ? "</front><middle>" : e }
           end

  ret = result * "\n"
  ret = cleanup(ret)
  ret1 = Nokogiri::XML(ret)
  ret1 = set_pis(node, ret1)
  ret1 = insert_biblio(node, ret1) unless node.attr("biblio-dir").nil? || node.attr("biblio-dir").empty?
  Asciidoctor::Rfc::Common::Validate::validate(ret1, File.join(File.dirname(__FILE__), "validate.rng"))
  ret1 = resolve_references(node, ret1)
  ret1.to_xml
end

#image(node) ⇒ Object

Note:

ignoring width, height attributes

Syntax:

[[id]]
.Name
[link=xxx,align=left|center|right,alt=alt_text,type]
image::filename[alt_text,width,height]



262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
 
# File 'lib/asciidoctor/rfc/v2/base.rb', line 262

def image(node)
  uri = node.image_uri node.attr("target")
  artwork_attributes = {
    align: node.attr("align"),
    alt: node.alt,
    height: node.attr("height"),
    name: node.title,
    src: uri,
    type: node.attr("type"),
    width: node.attr("width"),
  }

  noko do |xml|
    if node.parent.context != :example
      figure_attributes = {
        anchor: node.id,
      }
      xml.figure **attr_code(figure_attributes) do |xml_figure|
        xml_figure.artwork **attr_code(artwork_attributes)
      end
    else
      xml.artwork **attr_code(artwork_attributes)
    end
  end
end

#inline_break(node) ⇒ Object 



112
113
114
115
116
117
 
# File 'lib/asciidoctor/rfc/v2/base.rb', line 112

def inline_break(node)
  noko do |xml|
    xml << node.text
    xml.vspace
  end.join
end

#inline_quoted(node) ⇒ Object 



119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
 
# File 'lib/asciidoctor/rfc/v2/base.rb', line 119

def inline_quoted(node)
  noko do |xml|
    case node.type
    when :emphasis
      xml.spanx node.text, style: "emph"
    when :strong
      xml.spanx node.text, style: "strong"
    when :monospaced
      xml.spanx node.text, style: "verb"
    when :double
      xml << ($smart_quotes ? "“#{node.text}”" : "\"#{node.text}\"")
    when :single
      xml << ($smart_quotes ? "‘#{node.text}’" : "'#{node.text}'")
    when :superscript
      xml << "^#{node.text}^"
    when :subscript
      xml << "_#{node.text}_"
    else
      # [bcp14]#MUST NOT#
      if node.role == "bcp14"
        xml.spanx node.text.upcase, style: "strong"
      elsif node.role == "comment"
        xml.comment " " + node.text + " "
      else
        xml << node.text
      end
    end
  end.join
end

#merge_vspace(node) ⇒ Object 



326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
 
# File 'lib/asciidoctor/rfc/v2/base.rb', line 326

def merge_vspace(node)
  nodes = []
  newnodes = []
  node.children.each do |element|
    nodes << element
  end

  counter = 0
  while counter < nodes.size
    if nodes[counter].name == "vspace"
      blankLines = 0
      while counter < nodes.size && nodes[counter].name == "vspace"
        blankLines += 1
        if nodes[counter][:blankLines].nil?
          blankLines += nodes[counter][:blankLines].to_i
        end
        if counter + 1 < nodes.size && nodes[counter + 1].text? && nodes[counter + 1].text =~ /\A[\n ]+\Z/m
          counter += 1
        end
        counter += 1
      end
      counter -= 1 if counter == nodes.size
      newnodes << noko do |xml|
        xml.vspace **attr_code(blankLines: (blankLines - 1))
      end.join
    else
      newnodes << merge_vspace(nodes[counter])
      counter += 1
    end
  end
  node.children.remove
  newnodes.each do |item|
    node.add_child(item)
  end
  node
end

#para_to_vspace(doc) ⇒ Object

replace any <t>text</t> instances with <vspace blankLines=“1”/>text



364
365
366
367
368
369
370
371
372
373
374
375
376
377
 
# File 'lib/asciidoctor/rfc/v2/base.rb', line 364

def para_to_vspace(doc)
  xmldoc = Nokogiri::XML("<fragment>#{doc}</fragment>")
  paras = xmldoc.xpath("/fragment/t")
  paras.each do |para|
    # we do not insert vspace if the para contains a list: space will go there anyway
    unless para.element_children.size == 1 && para.element_children[0].name == "list"
      vspace = Nokogiri::XML::Element.new("vspace", xmldoc.document)
      vspace["blankLines"] = "1"
      para.before(vspace)
    end
    para.replace(para.children)
  end
  xmldoc.root.children.to_xml(encoding: "US-ASCII")
end

#paragraph(node) ⇒ Object

Syntax:

[[id]]
Text



152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
 
# File 'lib/asciidoctor/rfc/v2/base.rb', line 152

def paragraph(node)
  if node.role == "comment"
    return noko do |xml|
      xml.comment " " + [flatten_rawtext(node)].flatten.join("\n") + " "
    end.join("\n")
  end

  t_attributes = {
    anchor: node.id,
  }

  noko do |xml|
    xml.t **attr_code(t_attributes) do |xml_t|
      xml_t << node.content
    end
  end.join("\n")
end

#resolve_references(node, doc) ⇒ Object 



102
103
104
105
106
107
108
109
110
 
# File 'lib/asciidoctor/rfc/v2/base.rb', line 102

def resolve_references(node, doc)
  extract_entities(node, doc).each do |entity|
    Nokogiri::XML::EntityDecl::new(entity[:entity], doc,
                                   Nokogiri::XML::EntityDecl::EXTERNAL_GENERAL_PARSED,
                                   nil, entity[:url], nil)
    entity[:node].replace(Nokogiri::XML::EntityReference.new(doc, entity[:entity]))
  end
  doc
end

#section(node) ⇒ Object

Syntax:

[[id]]
== title
Content

[bibliography]
== References

[bibliography]
=== Normative|Informative References
++++
RFC XML references
++++



199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
 
# File 'lib/asciidoctor/rfc/v2/base.rb', line 199

def section(node)
  result = []
  if node.attr("style") == "bibliography" ||
      node.parent.context == :section && node.parent.attr("style") == "bibliography"
    $xreftext = {}
    $processing_reflist = true

    references_attributes = {
      title: node.title,
    }
    if node.blocks.empty?
      result << noko { |xml| xml.references **references_attributes }
    end
    node.blocks.each do |block|
      if block.context == :section
        result << node.content
      elsif block.context == :pass
        # NOTE: references are assumed to be found in a single passthrough
        #   block containing <reference> tags.

        result << noko do |xml|
          xml.references **references_attributes do |xml_references|
            # NOTE: we're allowing the user to do more or less whathever
            #   in the passthrough since the xpath below just fishes out ALL
            #   <reference>s in an unrooted fragment, regardless of structure.
            Nokogiri::XML::DocumentFragment.
              parse(block.content).xpath(".//reference").
              each { |reference| xml_references << reference.to_xml }
          end
        end
      end
    end

    result = result.unshift("</middle><back>") unless $seen_back_matter
    $processing_reflist = false
    $seen_back_matter = true
  else
    if node.attr("style") == "appendix"
      result << "</middle><back>" unless $seen_back_matter
      $seen_back_matter = true
    end

    section_attributes = {
      anchor: node.id,
      title: node.title.gsub(/<[^>]+>/, ""),
    }

    result << noko do |xml|
      xml.section **attr_code(section_attributes) do |xml_section|
        xml_section << node.content
      end
    end
  end

  result
end

#verse(node) ⇒ Object 



170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
 
# File 'lib/asciidoctor/rfc/v2/base.rb', line 170

def verse(node)
  result = []

  t_attributes = {
    anchor: node.id,
  }

  result << noko do |xml|
    xml.t **attr_code(t_attributes) do |xml_t|
      xml_t << node.content.gsub("\n\n", "<vspace blankLines=\"1\"/>").gsub("\n", "<vspace/>\n")
    end
  end

  result
end