Module: Metanorma::Standoc::Inline

Included in:
Converter
Defined in:
lib/metanorma/standoc/anchor.rb,
lib/metanorma/standoc/inline.rb

Constant Summary collapse

XREF_ATTRS = 
"hidden|style|droploc|capital|lowercase|label".freeze

Instance Method Summary collapse

Instance Method Details

#concatenate_attributes_to_xref_text(node) ⇒ Object 



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# File 'lib/metanorma/standoc/anchor.rb', line 41

def concatenate_attributes_to_xref_text(node)
  node.attributes.each_with_object([]) do |(k, v), m|
    %w(path fragment refid).include?(k) and next
    m << "#{k}=#{v}%"
  end.map { |x| x.sub(/%+/, "%") }.join + (node.text || "")
end

#hash2styles(role) ⇒ Object 



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# File 'lib/metanorma/standoc/inline.rb', line 107

def hash2styles(role)
  CSV.parse_line(role, liberal_parsing: true)
    .each_with_object({}) do |r, m|
    kv = r.split(":", 2).map(&:strip)
    case kv[0]
    when "custom-charset"
      m[kv[0]] = kv[1]
    end
  end
end

#highlight_parse(text, xml) ⇒ Object 



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# File 'lib/metanorma/standoc/inline.rb', line 66

def highlight_parse(text, xml)
  xml << text
end

#image_attributes(node) ⇒ Object 



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# File 'lib/metanorma/standoc/inline.rb', line 118

def image_attributes(node)
  nodetarget = node.attr("target") || node.target
  if Gem.win_platform? && /^[a-zA-Z]:/.match?(nodetarget)
    nodetarget.prepend("/")
  end
  uri = node.image_uri (nodetarget)
  if Gem.win_platform? && /^\/[a-zA-Z]:/.match?(uri)
    uri = uri[1..-1]
  end
  types = if /^data:/.match?(uri) then Vectory::Utils::datauri2mime(uri)
          else MIME::Types.type_for(uri)
          end
  type = types.first.to_s
  uri = uri.sub(%r{^data:image/\*;}, "data:#{type};")
  image_attributes1(node, uri, type)
end

#image_attributes1(node, uri, type) ⇒ Object 



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# File 'lib/metanorma/standoc/inline.rb', line 135

def image_attributes1(node, uri, type)
  attr_code(src: uri, mimetype: type,
            id: Metanorma::Utils::anchor_or_uuid,
            height: node.attr("height") || "auto",
            width: node.attr("width") || "auto",
            filename: node.attr("filename"),
            title: node.attr("titleattr"),
            alt: node.alt == node.attr("default-alt") ? nil : node.alt)
end

#inline_anchor(node) ⇒ Object 



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# File 'lib/metanorma/standoc/anchor.rb', line 6

def inline_anchor(node)
  case node.type
  when :ref then inline_anchor_ref node
  when :xref then inline_anchor_xref node
  when :link then inline_anchor_link node
  when :bibref then inline_anchor_bibref node
  end
end

#inline_anchor_bibref(node) ⇒ Object 



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# File 'lib/metanorma/standoc/anchor.rb', line 99

def inline_anchor_bibref(node)
  eref_contents = inline_anchor_bibref_contents(node)
  @refids << (node.target || node.id)
  noko do |xml|
    xml.ref **attr_code(id: node.target || node.id) do |r|
      r << eref_contents
    end
  end.join
end

#inline_anchor_bibref_contents(node) ⇒ Object 



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# File 'lib/metanorma/standoc/anchor.rb', line 109

def inline_anchor_bibref_contents(node)
  @c.decode(node.text || node.target || node.id)
    &.sub(/^\[?([^\[\]]+?)\]?$/, "[\\1]")
end

#inline_anchor_link(node) ⇒ Object 



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# File 'lib/metanorma/standoc/anchor.rb', line 80

def inline_anchor_link(node)
  contents, attributes = inline_anchor_link_attrs(node)
  noko do |xml|
    xml.link **attr_code(attributes) do |l|
      l << contents
    end
  end.join
end

#inline_anchor_link_attrs(node) ⇒ Object 



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# File 'lib/metanorma/standoc/anchor.rb', line 89

def inline_anchor_link_attrs(node)
  contents = node.text
  contents = "" if node.target.gsub(%r{^mailto:}, "") == node.text
  attributes = { target: node.target, alt: node.attr("title"),
                 style: node.attr("style")&.sub(/%$/, ""),
                 "update-type": node.attr("updatetype") ||
                   node.attr("update-type") }
  [contents, attributes]
end

#inline_anchor_ref(node) ⇒ Object 



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# File 'lib/metanorma/standoc/anchor.rb', line 15

def inline_anchor_ref(node)
  noko do |xml|
    xml.bookmark nil, **attr_code(id: node.id)
  end.join
end

#inline_anchor_xref(node) ⇒ Object 



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# File 'lib/metanorma/standoc/anchor.rb', line 21

def inline_anchor_xref(node)
  noko do |xml|
    attrs = inline_anchor_xref_attrs(node)
    c = attrs[:text]
    attrs.delete(:text) unless c.nil?
    xml.xref **attr_code(attrs) do |x|
      x << c
    end
  end.join
end

#inline_anchor_xref_attrs(node) ⇒ Object 



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# File 'lib/metanorma/standoc/anchor.rb', line 32

def inline_anchor_xref_attrs(node)
  text = concatenate_attributes_to_xref_text(node)
  t = node.target.gsub(/^#/, "").gsub(%r{(\.xml|\.adoc)(#.*$)}, "\\2")
  attrs, text = inline_anchor_xref_match(text)
  attrs.empty? and
    return { target: t, type: "inline", text: text, style: @xrefstyle }
  inline_anchor_xref_attrs1(attrs, t, text)
end

#inline_anchor_xref_attrs1(attrs, target, text) ⇒ Object 



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# File 'lib/metanorma/standoc/anchor.rb', line 48

def inline_anchor_xref_attrs1(attrs, target, text)
  { target: target, hidden: attrs["hidden"],
    type: attrs.key?("fn") ? "footnote" : "inline",
    case: %w(capital lowercase).detect { |x| attrs.key?(x) },
    label: attrs["label"],
    style: attrs["style"] || @xrefstyle,
    droploc: attrs.key?("droploc") ? true : nil,
    text: text }.compact
end

#inline_anchor_xref_match(text) ⇒ Object 



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# File 'lib/metanorma/standoc/anchor.rb', line 60

def inline_anchor_xref_match(text)
  attrs = {}
  while m = /^(#{XREF_ATTRS})(=[^%]+)?%(.*)$/o.match(text)
    text = m[3]
    attrs[m[1]] = m[2]&.sub(/^=/, "")
  end
  if m = /^(fn:?\s*)(\S.*)?$/.match(text)
    text = m[2]
    attrs["fn"] = ""
  end
  [attrs, text]
end

#inline_anchor_xref_text(match, text) ⇒ Object 



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# File 'lib/metanorma/standoc/anchor.rb', line 73

def inline_anchor_xref_text(match, text)
  if %i[case fn drop drop2 hidden style].any? { |x| !match[x].nil? }
    match[:text]
  else text
  end
end

#inline_break(node) ⇒ Object 



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# File 'lib/metanorma/standoc/inline.rb', line 10

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

#inline_callout(node) ⇒ Object 



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# File 'lib/metanorma/standoc/anchor.rb', line 114

def inline_callout(node)
  noko do |xml|
    xml.callout node.text
  end.join
end

#inline_footnote(node) ⇒ Object 



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# File 'lib/metanorma/standoc/anchor.rb', line 120

def inline_footnote(node)
  @fn_number ||= 0
  noko do |xml|
    @fn_number += 1
    xml.fn reference: @fn_number do |fn|
      fn.p { |p| p << node.text }
    end
  end.join
end

#inline_image(node) ⇒ Object 



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# File 'lib/metanorma/standoc/inline.rb', line 145

def inline_image(node)
  noko do |xml|
    xml.image **image_attributes(node)
  end.join
end

#inline_indexterm(node) ⇒ Object 



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# File 'lib/metanorma/standoc/inline.rb', line 151

def inline_indexterm(node)
  noko do |xml|
    node.type == :visible and xml << node.text
    terms = (node.attr("terms") || [node.text]).map { |x| xml_encode(x) }
    inline_indexterm1(xml, terms)
  end.join
end

#inline_indexterm1(xml, terms) ⇒ Object 



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# File 'lib/metanorma/standoc/inline.rb', line 159

def inline_indexterm1(xml, terms)
  xml.index 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/standoc/inline.rb', line 70

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, false)
    when :latexmath then stem_parse(node.text, xml, :latexmath, false)
    when :mark then highlight_parse(node.text, xml)
    else
      case node.role
        # the following three are legacy, they are now handled by macros
      when "alt"
        term_designation(xml, node, "admitted", node.text)
      when "deprecated"
        term_designation(xml, node, "deprecates", node.text)
      when "domain", "strike", "underline", "smallcap", "keyword"
        xml.send(node.role) { |s| s << node.text }
      when /^css /
        xml.span style: node.role.sub(/^css /, "") do |s|
          s << node.text
        end
      when /:/
        xml.span **attr_code(hash2styles(node.role)) do |s|
          s << node.text
        end
      else
        xml << node.text
      end
    end
  end.join
end

#latex_parse(text, xml, block) ⇒ Object 



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# File 'lib/metanorma/standoc/inline.rb', line 54

def latex_parse(text, xml, block)
  latex = latex_parse1(text, block) or
    return xml.stem type: "MathML", block: block
  xml.stem type: "MathML", block: block do |s|
    math = Nokogiri::XML.fragment(latex.sub(/<\?[^>]+>/, ""))
      .elements[0]
    math.delete("alttext")
    s.parent.children = math
    s << "<latexmath>#{text}</latexmath>"
  end
end

#latex_parse1(text, block) ⇒ Object 



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# File 'lib/metanorma/standoc/inline.rb', line 28

def latex_parse1(text, block)
  lxm_input = Unicode2LaTeX.unicode2latex(@c.decode(text))
  results = Plurimath::Math.parse(lxm_input, "latex")
    .to_mathml(display_style: block)
  if results.nil?
    @log.add("Maths", nil,
             "latexmlmath failed to process equation:\n#{lxm_input}",
             severity: 1)
    return
  end
  results.sub(%r{<math ([^>]+ )?display="block"}, "<math \\1")
end

#page_break(node) ⇒ Object 



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# File 'lib/metanorma/standoc/inline.rb', line 17

def page_break(node)
  attrs = {}
  node.option?("landscape") and attrs[:orientation] = "landscape"
  node.option?("portrait") and attrs[:orientation] = "portrait"
  noko { |xml| xml.pagebreak **attr_code(attrs) }.join
end

#stem_parse(text, xml, style, block) ⇒ Object 



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# File 'lib/metanorma/standoc/inline.rb', line 41

def stem_parse(text, xml, style, block)
  if /&lt;([^:>&]+:)?math(\s+[^>&]+)?&gt; |
    <([^:>&]+:)?math(\s+[^>&]+)?>/x.match? text
    math = xml_encode(text)
    xml.stem type: "MathML", block: block do |s|
      s << math
    end
  elsif style == :latexmath then latex_parse(text, xml, block)
  else
    xml.stem text&.gsub("&amp;#", "&#"), type: "AsciiMath", block: block
  end
end

#thematic_break(_node) ⇒ Object 



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# File 'lib/metanorma/standoc/inline.rb', line 24

def thematic_break(_node)
  noko { |xml| xml.hr }.join
end