Class: Metanorma::Ietf::Converter

Inherits:
Standoc::Converter
  • Object
show all
Defined in:
lib/metanorma/ietf/front.rb,
lib/metanorma/ietf/blocks.rb,
lib/metanorma/ietf/cleanup.rb,
lib/metanorma/ietf/validate.rb,
lib/metanorma/ietf/converter.rb

Constant Summary collapse

BCP_KEYWORDS = 
["MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY",
"NOT RECOMMENDED", "OPTIONAL"].freeze
XML_ROOT_TAG = 
"ietf-standard".freeze
XML_NAMESPACE = 
"https://www.metanorma.org/ns/ietf".freeze

Instance Method Summary collapse

Constructor Details

#initialize(backend, opts) ⇒ Converter

Returns a new instance of Converter.



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# File 'lib/metanorma/ietf/converter.rb', line 22

def initialize(backend, opts)
  super
  @libdir = File.dirname(__FILE__)
end

Instance Method Details

#abstract_cleanup(xmldoc) ⇒ Object 



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# File 'lib/metanorma/ietf/cleanup.rb', line 30

def abstract_cleanup(xmldoc)
  xmldoc.xpath("//abstract[not(text())]").each do |x|
    x.remove
    warn "Empty abstract section removed"
  end
end

#annex_attrs_preprocess(attrs, node) ⇒ Object 



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# File 'lib/metanorma/ietf/converter.rb', line 133

def annex_attrs_preprocess(attrs, node)
  attrs[:numbered] = node.attr("numbered")
  attrs[:removeInRFC] = node.attr("removeInRFC")
  attrs[:toc] = node.attr("toc")
  super
end

#bcp14(node, xml) ⇒ Object 



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# File 'lib/metanorma/ietf/converter.rb', line 65

def bcp14(node, xml)
  xml.span **{ class: "bcp14" } do |s|
    s << node.text.upcase
  end
end

#bcp14_cleanup(xmldoc) ⇒ Object 



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# File 'lib/metanorma/ietf/cleanup.rb', line 55

def bcp14_cleanup(xmldoc)
  @bcp_bold or return
  xmldoc.xpath("//strong").each do |s|
    BCP_KEYWORDS.include?(s.text) or next
    s["class"] = "bcp14"
    s.name = "span"
  end
end

#boilerplate_isodoc(xmldoc) ⇒ Object

simplified



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# File 'lib/metanorma/ietf/cleanup.rb', line 14

def boilerplate_isodoc(xmldoc)
  x = xmldoc.dup
  x.root.add_namespace(nil, xml_namespace)
  #xml = Nokogiri::XML(x.to_xml)
  @isodoc ||= isodoc(@lang, @script, @locale)
  # initialise @isodoc.xrefs, for @isodoc.xrefs.info
  @isodoc
end

#cache_workgroup(_node) ⇒ Object 



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# File 'lib/metanorma/ietf/validate.rb', line 50

def cache_workgroup(_node)
  Metanorma::Ietf::Data::WORKGROUPS
end

#clause_attrs_preprocess(attrs, node) ⇒ Object 



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# File 'lib/metanorma/ietf/converter.rb', line 126

def clause_attrs_preprocess(attrs, node)
  attrs[:numbered] = node.attr("numbered")
  attrs[:removeInRFC] = node.attr("removeInRFC")
  attrs[:toc] = node.attr("toc")
  super
end

#cleanup(xmldoc) ⇒ Object 



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# File 'lib/metanorma/ietf/cleanup.rb', line 4

def cleanup(xmldoc)
  bcp14_cleanup(xmldoc)
  abstract_cleanup(xmldoc)
  super
  cref_cleanup(xmldoc)
  dt_cleanup(xmldoc)
  xmldoc
end

#content_validate(doc) ⇒ Object 



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# File 'lib/metanorma/ietf/validate.rb', line 7

def content_validate(doc)
  super
  image_validate(doc)
  workgroup_validate(doc)
  submission_validate(doc)
end

#cref_cleanup(xmldoc) ⇒ Object 



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# File 'lib/metanorma/ietf/cleanup.rb', line 37

def cref_cleanup(xmldoc)
  xmldoc.xpath("//crefref").each do |r|
    if c = xmldoc.at("//annotation[@anchor = '#{r.text}']")
      id = "_#{UUIDTools::UUID.random_create}"
      c["from"] = id
      c["to"] = id
      r.replace("<bookmark id='#{id}'/>")
    else
      @log.add("Crossrefences", r,
               "No matching annotation for cref:[#{r.text}]", severity: 1)
    end
  end
end

#default_publisher ⇒ Object 



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# File 'lib/metanorma/ietf/front.rb', line 15

def default_publisher
  "IETF"
end

#dl_attrs(node) ⇒ Object 



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# File 'lib/metanorma/ietf/blocks.rb', line 33

def dl_attrs(node)
  attr_code(id_attr(node).merge(
              newline: node.attr("newline"),
              indent: node.attr("indent"),
              spacing: node.attr("spacing"),
            ))
end

#dt_cleanup(xmldoc) ⇒ Object 



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# File 'lib/metanorma/ietf/cleanup.rb', line 23

def dt_cleanup(xmldoc)
  xmldoc.xpath("//dt").each do |dt|
    /:$/.match?(dt.text.strip) and next
    dt << ":"
  end
end

#eref_text(node) ⇒ Object 



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# File 'lib/metanorma/ietf/converter.rb', line 88

def eref_text(node)
  matched = /^(of|comma|parens|bare),(.*+)$/.match node.text
  if matched.nil?
    f = nil
    c = node&.text&.sub(/^fn: /, "")
  else
    f = matched[1]
    c = matched[2]
  end
  [f, c]
end

#html_extract_attributes(node) ⇒ Object 



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# File 'lib/metanorma/ietf/converter.rb', line 164

def html_extract_attributes(node)
  super.merge(usexinclude: node.attr("use-xinclude"))
end

#image_attributes(node) ⇒ Object 



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# File 'lib/metanorma/ietf/blocks.rb', line 75

def image_attributes(node)
  super.merge(attr_code(align: node.attr("align")))
end

#image_validate(doc) ⇒ Object 



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# File 'lib/metanorma/ietf/validate.rb', line 26

def image_validate(doc)
  doc.xpath("//image").each do |i|
    i["mimetype"] == "image/svg+xml" and next
    @log.add("Images", i, "image #{i['src'][0, 40]} is not SVG!",
             severity: 1)
  end
end

#init_misc(node) ⇒ Object 



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# File 'lib/metanorma/ietf/converter.rb', line 39

def init_misc(node)
  super
  @default_doctype = "internet-draft"
end

#inline_anchor_xref(node) ⇒ Object 



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# File 'lib/metanorma/ietf/converter.rb', line 71

def inline_anchor_xref(node)
  f, c = xref_text(node)
  f1, c = eref_text(node) if f.nil?
  t, rel = xref_rel(node)
  attrs = { target: t, type: "inline", displayFormat: f1, format: f,
            relative: rel }
  noko do |xml|
    xml.xref **attr_code(attrs) do |x|
      x << c
    end
  end
end

#inline_indexterm(node) ⇒ Object 



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# File 'lib/metanorma/ietf/converter.rb', line 144

def inline_indexterm(node)
  noko do |xml|
    node.type == :visible and xml << node.text.sub(/^primary:(?=\S)/, "")
    terms = (node.attr("terms") || [node.text]).map { |x| xml_encode(x) }
    if /^primary:\S/.match?(terms[0])
      terms[0].sub!(/^primary:/, "")
      has_primary = true
    end
    inline_indexterm1(has_primary, terms, xml)
  end
end

#inline_indexterm1(has_primary, terms, xml) ⇒ Object 



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# File 'lib/metanorma/ietf/converter.rb', line 156

def inline_indexterm1(has_primary, terms, xml)
  xml.index **attr_code(primary: has_primary) do |i|
    i.primary { |x| x << terms[0] }
    a = terms[1] and i.secondary { |x| x << a }
    a = terms[2] and i.tertiary { |x| x << a }
  end
end

#inline_quoted(node) ⇒ Object 



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# File 'lib/metanorma/ietf/converter.rb', line 44

def inline_quoted(node)
  noko do |xml|
    case node.type
    when :emphasis then xml.em { |s| s << node.text }
    when :strong then xml.strong { |s| s << node.text }
    when :monospaced then xml.tt { |s| s << node.text }
    when :double then xml << "\"#{node.text}\""
    when :single then xml << "'#{node.text}'"
    when :superscript then xml.sup { |s| s << node.text }
    when :subscript then xml.sub { |s| s << node.text }
    when :asciimath then stem_parse(node.text, xml, :asciimath, node)
    when :latexmath then stem_parse(node.text, xml, :latexmath, node)
    else
      case node.role
      when "bcp14" then bcp14(node, xml)
      else xml << node.text
      end
    end
  end
end

#introduction_parse(attrs, xml, node) ⇒ Object 



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# File 'lib/metanorma/ietf/converter.rb', line 140

def introduction_parse(attrs, xml, node)
  clause_parse(attrs, xml, node)
end

#isodoc(lang, script, locale, i18nyaml = nil) ⇒ Object 



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# File 'lib/metanorma/ietf/converter.rb', line 172

def isodoc(lang, script, locale, i18nyaml = nil)
  conv = rfc_converter(EmptyAttr.new)
  i18n = conv.i18n_init(lang, script, locale, i18nyaml)
  conv.metadata_init(lang, script, locale, i18n)
  conv
end

#listing_attrs(node) ⇒ Object 



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# File 'lib/metanorma/ietf/blocks.rb', line 79

def listing_attrs(node)
  super.merge(attr_code(markers: node.attr("markers"),
                        src: node.attr("src")))
end

#literal(node) ⇒ Object 



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# File 'lib/metanorma/ietf/blocks.rb', line 65

def literal(node)
  noko do |xml|
    xml.figure **literal_attrs(node) do |f|
      block_title(node, f)
      f.pre node.lines.join("\n"),
            **attr_code(align: node.attr("align"), alt: node.attr("alt"))
    end
  end
end

#makexml(node) ⇒ Object 



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# File 'lib/metanorma/ietf/converter.rb', line 27

def makexml(node)
  @workgroups = cache_workgroup(node)
  @bcp_bold = !node.attr?("no-rfc-bold-bcp14")
  @xinclude = node.attr?("use-xinclude")
  super
end

#metadata_author(node, xml) ⇒ Object 



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# File 'lib/metanorma/ietf/front.rb', line 8

def metadata_author(node, xml)
  personal_author(node, xml)
  committee_contributors(node, xml, default_publisher, {})
end

#metadata_committee(node, xml) ⇒ Object 



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# File 'lib/metanorma/ietf/front.rb', line 54

def metadata_committee(node, xml)
  node.attr("workgroup") or return
  xml.editorialgroup do |a|
    committee_component("workgroup", node, a)
  end
end

#metadata_committee_types(_node) ⇒ Object 



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# File 'lib/metanorma/ietf/front.rb', line 19

def metadata_committee_types(_node)
  %w(workgroup)
end

#metadata_ext(node, xml) ⇒ Object 



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# File 'lib/metanorma/ietf/front.rb', line 61

def metadata_ext(node, xml)
  super
  x = node.attr("area") and x.split(/,\s*/).each do |a|
    xml.area a
  end
  xml.ipr (node.attr("ipr") || "trust200902")
  x = node.attr("consensus") and xml.consensus (x != "false")
  x = node.attr("index-include") and xml.indexInclude (x != "false")
  x = node.attr("ipr-extract") and xml.iprExtract x
  x = node.attr("sort-refs") and xml.sortRefs (x != "false")
  x = node.attr("sym-refs") and xml.symRefs (x != "false")
  x = node.attr("toc-include") and xml.tocInclude (x != "false")
  x = node.attr("toc-depth") and xml.tocDepth x
  x = node.attr("show-on-front-page") and xml.showOnFrontPage (x != "false")
  xml.pi { |pi| set_pi(node, pi) }
end

#metadata_series(node, xml) ⇒ Object 



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# File 'lib/metanorma/ietf/front.rb', line 27

def metadata_series(node, xml)
  xml.series **{ type: "stream" } do |s|
    s.title (node.attr("submission-type") || "IETF")
  end
  a = node.attr("intended-series") and
    xml.series **{ type: "intended" } do |s|
      parts = a.split(/ /)
      s.title parts[0]
      s.number parts[1..-1].join(" ") if parts.size > 1
    end
end

#norm_ref_preface(sect) ⇒ Object 



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# File 'lib/metanorma/ietf/converter.rb', line 124

def norm_ref_preface(sect); end

#note(node) ⇒ Object 



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# File 'lib/metanorma/ietf/blocks.rb', line 54

def note(node)
  noko do |xml|
    xml.note **attr_code(id_attr(node).merge(
                           removeInRFC: node.attr("remove-in-rfc"),
                         )) do |c|
      block_title(node, c)
      wrap_in_para(node, c)
    end
  end
end

#note_cleanup(xmldoc) ⇒ Object 



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# File 'lib/metanorma/ietf/cleanup.rb', line 106

def note_cleanup(xmldoc); end

#ns(path) ⇒ Object 



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# File 'lib/metanorma/ietf/validate.rb', line 14

def ns(path)
  ::Metanorma::Utils::ns(path)
end

#ol_attrs(node) ⇒ Object 



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# File 'lib/metanorma/ietf/blocks.rb', line 23

def ol_attrs(node)
  attr_code(id_attr(node).merge(
              type: node.attr("format") || olist_style(node.style),
              group: node.attr("group"),
              spacing: node.attr("spacing"),
              indent: node.attr("indent"),
              start: node.attr("start"),
            ))
end

#org_abbrev ⇒ Object 



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# File 'lib/metanorma/ietf/front.rb', line 23

def org_abbrev
  { "Internet Engineering Task Force" => "IETF" }
end

#org_author(node, xml) ⇒ Object 



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# File 'lib/metanorma/ietf/front.rb', line 13

def org_author(node, xml); end

#outputs(node, ret) ⇒ Object 



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# File 'lib/metanorma/ietf/converter.rb', line 34

def outputs(node, ret)
  File.open("#{@filename}.xml", "w:UTF-8") { |f| f.write(ret) }
  rfc_converter(node).convert("#{@filename}.xml")
end

#para_attrs(node) ⇒ Object 



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# File 'lib/metanorma/ietf/blocks.rb', line 4

def para_attrs(node)
  attr_code(id_attr(node).merge(
              "keep-with-next": node.attr("keepWithNext") ||
                      node.attr("keep-with-next"),
              "keep-with-previous": node.attr("keepWithPrevious") ||
                     node.attr("keep-with-previous"),
              indent: node.attr("indent"),
            ))
end

#pi_code(rfc_pis, processing_instruction) ⇒ Object 



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# File 'lib/metanorma/ietf/front.rb', line 119

def pi_code(rfc_pis, processing_instruction)
  rfc_pis.each_pair do |k, v|
    v.nil? and next
    processing_instruction.send k.to_s, v
  end
end

#quotesource_cleanup(xmldoc) ⇒ Object 



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# File 'lib/metanorma/ietf/cleanup.rb', line 93

def quotesource_cleanup(xmldoc)
  xmldoc.xpath("//quote/source | //terms/source").each do |x|
    if x["target"]&.match?(URI::DEFAULT_PARSER.make_regexp)
      x["uri"] = x["target"]
      x.delete("target")
    else
      xref_to_eref(x, "source")
    end
  end
end

#relaton_relations ⇒ Object 



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# File 'lib/metanorma/ietf/front.rb', line 4

def relaton_relations
  %w(included-in described-by derived-from instance-of obsoletes updates)
end

#rfc_converter(node) ⇒ Object 



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# File 'lib/metanorma/ietf/converter.rb', line 168

def rfc_converter(node)
  IsoDoc::Ietf::RfcConvert.new(html_extract_attributes(node))
end

#schema_file ⇒ Object 



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# File 'lib/metanorma/ietf/validate.rb', line 46

def schema_file
  "ietf.rng"
end

#section_names_refs_cleanup(xml) ⇒ Object 



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# File 'lib/metanorma/ietf/cleanup.rb', line 104

def section_names_refs_cleanup(xml); end

#set_pi(node, pi) ⇒ Object 



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# File 'lib/metanorma/ietf/front.rb', line 78

def set_pi(node, pi)
  rfc_pis = {
    artworkdelimiter: node.attr("artworkdelimiter"),
    artworklines: node.attr("artworklines"),
    authorship: node.attr("authorship"),
    autobreaks: node.attr("autobreaks"),
    background: node.attr("background"),
    colonspace: node.attr("colonspace"),
    comments: node.attr("comments"),
    docmapping: node.attr("docmapping"),
    editing: node.attr("editing"),
    emoticonic: node.attr("emoticonic"),
    footer: node.attr("footer"),
    header: node.attr("header"),
    inline: node.attr("inline"),
    iprnotified: node.attr("iprnotified"),
    linkmailto: node.attr("linkmailto"),
    linefile: node.attr("linefile"),
    notedraftinprogress: node.attr("notedraftinprogress"),
    private: node.attr("private"),
    refparent: node.attr("refparent"),
    rfcedstyle: node.attr("rfcedstyle"),
    slides: node.attr("slides"),
    "text-list-symbols": node.attr("text-list-symbols"),
    tocappendix: node.attr("tocappendix"),
    tocindent: node.attr("tocindent"),
    tocnarrow: node.attr("tocnarrow"),
    tocompact: node.attr("tocompact"),
    topblock: node.attr("topblock"),
    useobject: node.attr("useobject"),
    strict: node.attr("strict"),
    compact: node.attr("compact"),
    subcompact: node.attr("subcompact"),
    tocinclude: node.attr("toc-include") == "false" ? "no" : "yes",
    tocdepth: node.attr("toc-depth"),
    symrefs: node.attr("sym-refs"),
    sortrefs: node.attr("sort-refs"),
  }
  pi_code(rfc_pis, pi)
end

#sidebar(node) ⇒ Object 



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# File 'lib/metanorma/ietf/blocks.rb', line 45

def sidebar(node)
  noko do |xml|
    xml.annotation **sidebar_attrs(node) do |r|
      block_title(node, r)
      wrap_in_para(node, r)
    end
  end
end

#sidebar_attrs(node) ⇒ Object 



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# File 'lib/metanorma/ietf/blocks.rb', line 41

def sidebar_attrs(node)
  super.merge(attr_code(display: node.attr("display")))
end

#smartquotes_cleanup(xmldoc) ⇒ Object 



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# File 'lib/metanorma/ietf/cleanup.rb', line 64

def smartquotes_cleanup(xmldoc)
  xmldoc.traverse do |n|
    n.text? or next
    n.replace(HTMLEntities.new.encode(
                n.text.gsub(/\u2019|\u2018|\u201a|\u201b/, "'")
                .gsub(/\u201c|\u201d|\u201e|\u201f/, '"')
                .gsub(/[\u2010-\u2015]/, "-")
                .gsub(/\u2026/, "...")
                .gsub(/[\u200b-\u200c]/, "")
                .gsub(/[\u2000-\u200a]|\u202f|\u205f/, " "),
                :basic,
              ))
  end
  xmldoc
end

#submission_validate(doc) ⇒ Object 



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# File 'lib/metanorma/ietf/validate.rb', line 18

def submission_validate(doc)
  stream = doc.at("//bibdata/series[@type = 'stream']/title")&.text
  status = doc.at("//bibdata/status/stage")&.text
  stream == "editorial" && status != "informational" and
    @log.add("Document Attributes", nil,
             "Editorial stream must have Informational status")
end

#table_attrs(node) ⇒ Object 



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# File 'lib/metanorma/ietf/converter.rb', line 84

def table_attrs(node)
  super.merge(align: node.attr("align"))
end

#title(node, xml) ⇒ Object 



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# File 'lib/metanorma/ietf/front.rb', line 39

def title(node, xml)
  ["en"].each do |lang|
    at = { language: lang, format: "text/plain" }
    xml.title **attr_code(at.merge(type: "main")) do |t|
      t << (::Metanorma::Utils::asciidoc_sub(node.attr("title")) ||
        ::Metanorma::Utils::asciidoc_sub(node.attr("title-en")) ||
        ::Metanorma::Utils::asciidoc_sub(node.attr("doctitle")))
    end
    a = node.attr("abbrev") and
      xml.title a, **attr_code(at.merge(type: "abbrev"))
    a = node.attr("asciititle") and
      xml.title a, **attr_code(at.merge(type: "ascii"))
  end
end

#ul_attrs(node) ⇒ Object 



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# File 'lib/metanorma/ietf/blocks.rb', line 14

def ul_attrs(node)
  attr_code(id_attr(node).merge(
              nobullet: node.attr("nobullet") || node.attr("empty"),
              indent: node.attr("indent"),
              bare: node.attr("bare"),
              spacing: node.attr("spacing"),
            ))
end

#workgroup_validate(doc) ⇒ Object 



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# File 'lib/metanorma/ietf/validate.rb', line 34

def workgroup_validate(doc)
  @workgroups.empty? and return
  doc.xpath("//bibdata/contributor[role/description = 'committee']/" \
    "organization/subdivision[@type = 'Workgroup']/name").each do |wg|
    wg_norm = wg.text.sub(/ (Working|Research) Group$/, "")
    @workgroups.include?(wg_norm) and next
    @log.add("Document Attributes", nil,
             "IETF: unrecognised working group #{wg.text}",
             severity: 1)
  end
end

#xref_cleanup(xmldoc) ⇒ Object 



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# File 'lib/metanorma/ietf/cleanup.rb', line 85

def xref_cleanup(xmldoc)
  super
  xmldoc.xpath("//xref").each do |x|
    x.delete("displayFormat")
    x.delete("relative")
  end
end

#xref_rel(node) ⇒ Object 



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# File 'lib/metanorma/ietf/converter.rb', line 112

def xref_rel(node)
  matched = /^([^#]+)#(.+)$/.match node.target
  if matched.nil?
    t = node.target.sub(/^#/, "")
    rel = nil
  else
    t = matched[1].sub(/\.(xml|adoc)$/, "")
    rel = matched[2]
  end
  [t, rel]
end

#xref_text(node) ⇒ Object 



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# File 'lib/metanorma/ietf/converter.rb', line 100

def xref_text(node)
  matched = /^format=(counter|title|none|default)(:.*+)?$/.match node.text
  if matched.nil?
    f = nil
    c = node&.text&.sub(/^fn: /, "")
  else
    f = matched[1]
    c = matched[2]&.sub(/^:/, "")
  end
  [f, c]
end

#xref_to_eref(xref, name) ⇒ Object 



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# File 'lib/metanorma/ietf/cleanup.rb', line 80

def xref_to_eref(xref, name)
  super
  xref.delete("format")
end