parser.rb

require 'nokogiri'

class Listener < Nokogiri::XML::SAX::Document
  def initialize
    @elements = []
    @dfn_element = false
    @dt = nil
    @text = nil

    @result = {}
  end

  # テキストノード
  def characters(string)
    @text << string if @text
  end

  # 開始タグ
  def start_element(name, attrs = [])
    if name == "dfn" && attrs.to_h.key?("element")
      @dfn_element = true
      @text = +""
    end
    if %w|dl dt dd|.include?(name) && @elements.any?
      @text = +""
    end
  end

  def end_element(name)
    if name == "dfn" && @dfn_element
      @elements << @text.strip
      @dfn_element = false
      @text = nil
    end
    if name == "dt" && @text
      @dt = @text.strip
    end
    if name == "dd" && @text
      if ["Categories:", "Content model:"].include?(@dt)
        @elements.each do |el|
          @result[el] ||= {}
          @result[el][@dt] ||= []
          @result[el][@dt] << @text.strip
        end
      end
    end
    if name == "dl" && @elements.any?
      @elements = []
      @dt = nil
      @text = nil
    end
  end

  attr_reader :result
end

html = File.open('source')
listener = Listener.new
parser = Nokogiri::HTML::SAX::Parser.new(listener)
parser.parse(html)

result = listener.result.map do |element, info|
  categories = info["Categories:"].map do |cat|
    case cat
    when "Flow content."
      "flow"
    when "Phrasing content."
      "phrasing"
    # when "Embedded content."
    #   "embedded"
    # when "Interactive content."
    #   "interactive"
    # when "Metadata content."
    #   "metadata"
    # when "Sectioning content."
    #   "sectioning"
    # when "Heading content."
    #   "heading"
    # when "Palpable content"
    #   "palpable"
    end
  end.compact
  content_model = info["Content model:"].map do |cm|
    case cm
    when "Flow content."
      "flow"
    when "Phrasing content."
      "phrasing"
    when "Transparent"
      "transparent"
    else
      cm
    end.gsub(/\s+/, ' ').strip
  end
  [element, { categories:, contentModel: content_model }]
end.to_h

class TocListener < Nokogiri::XML::SAX::Document
  def initialize
    @result = {}
  end

  def start_element(name, attrs = [])
    if name == "a" && attrs.to_h.key?("href")
      href = attrs.to_h["href"]
      hash = href.split("#")[1]
      if /^the-(.*)-elements?$/ =~ hash
        element = Regexp.last_match(1)
        link = href
        unless result.key?(element)
          result[element] = { "link" => "https://html.spec.whatwg.org/multipage/#{link}" }
        end
      end
    end
  end

  attr_reader :result
end

toc_html = File.open('spec_toc.html')
toc_listener = TocListener.new
toc_parser = Nokogiri::HTML::SAX::Parser.new(toc_listener)
toc_parser.parse(toc_html)

toc_listener.result.each do |element, info|
  if result.key?(element)
    result[element]["link"] = info["link"]
  elsif element == "h1,-h2,-h3,-h4,-h5,-and-h6"
    result["h1"]["link"] = info["link"]
    result["h2"]["link"] = info["link"]
    result["h3"]["link"] = info["link"]
    result["h4"]["link"] = info["link"]
    result["h5"]["link"] = info["link"]
    result["h6"]["link"] = info["link"]
  elsif element == "sub-and-sup"
    result["sub"]["link"] = info["link"]
    result["sup"]["link"] = info["link"]
  end
end

require 'json'
puts JSON.pretty_generate(result)

spec.json

{
  "html": {
    "categories": [],
    "contentModel": [
      "A head element followed by a body element."
    ],
    "link": "https://html.spec.whatwg.org/multipage/semantics.html#the-html-element"
  },
  "head": {
    "categories": [],
    "contentModel": [
      "If the document is an iframe srcdoc document or if title information is available from a higher-level protocol: Zero or more elements of metadata content, of which no more than one is a title element and no more than one is a base element.",
      "Otherwise: One or more elements of metadata content, of which exactly one is a title element and no more than one is a base element."
    ],
    "link": "https://html.spec.whatwg.org/multipage/semantics.html#the-head-element"
  },
  "title": {
    "categories": [],
    "contentModel": [
      "Text that is not inter-element whitespace."
    ],
    "link": "https://html.spec.whatwg.org/multipage/semantics.html#the-title-element"
  },
  "base": {
    "categories": [],
    "contentModel": [
      "Nothing."
    ],
    "link": "https://html.spec.whatwg.org/multipage/semantics.html#the-base-element"
  },
  "link": {
    "categories": [],
    "contentModel": [
      "Nothing."
    ],
    "link": "https://html.spec.whatwg.org/multipage/semantics.html#the-link-element"
  },
  "meta": {
    "categories": [],
    "contentModel": [
      "Nothing."
    ],
    "link": "https://html.spec.whatwg.org/multipage/semantics.html#the-meta-element"
  },
  "style": {
    "categories": [],
    "contentModel": [
      "Text that gives a conformant style sheet."
    ],
    "link": "https://html.spec.whatwg.org/multipage/semantics.html#the-style-element"
  },
  "body": {
    "categories": [],
    "contentModel": [
      "flow"
    ],
    "link": "https://html.spec.whatwg.org/multipage/sections.html#the-body-element"
  },
  "article": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "flow"
    ],
    "link": "https://html.spec.whatwg.org/multipage/sections.html#the-article-element"
  },
  "section": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "flow"
    ],
    "link": "https://html.spec.whatwg.org/multipage/sections.html#the-section-element"
  },
  "nav": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "flow"
    ],
    "link": "https://html.spec.whatwg.org/multipage/sections.html#the-nav-element"
  },
  "aside": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "flow"
    ],
    "link": "https://html.spec.whatwg.org/multipage/sections.html#the-aside-element"
  },
  "h1": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/sections.html#the-h1,-h2,-h3,-h4,-h5,-and-h6-elements"
  },
  "h2": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/sections.html#the-h1,-h2,-h3,-h4,-h5,-and-h6-elements"
  },
  "h3": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/sections.html#the-h1,-h2,-h3,-h4,-h5,-and-h6-elements"
  },
  "h4": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/sections.html#the-h1,-h2,-h3,-h4,-h5,-and-h6-elements"
  },
  "h5": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/sections.html#the-h1,-h2,-h3,-h4,-h5,-and-h6-elements"
  },
  "h6": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/sections.html#the-h1,-h2,-h3,-h4,-h5,-and-h6-elements"
  },
  "hgroup": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "Zero or more p elements, followed by one h1, h2, h3, h4, h5, or h6 element, followed by zero or more p elements, optionally intermixed with script-supporting elements."
    ],
    "link": "https://html.spec.whatwg.org/multipage/sections.html#the-hgroup-element"
  },
  "header": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "Flow content, but with no header or footer element descendants."
    ],
    "link": "https://html.spec.whatwg.org/multipage/sections.html#the-header-element"
  },
  "footer": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "Flow content, but with no header or footer element descendants."
    ],
    "link": "https://html.spec.whatwg.org/multipage/sections.html#the-footer-element"
  },
  "address": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "Flow content, but with no heading content descendants, no sectioning content descendants, and no header, footer, or address element descendants."
    ],
    "link": "https://html.spec.whatwg.org/multipage/sections.html#the-address-element"
  },
  "p": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/grouping-content.html#the-p-element"
  },
  "hr": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "Nothing."
    ],
    "link": "https://html.spec.whatwg.org/multipage/grouping-content.html#the-hr-element"
  },
  "pre": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/grouping-content.html#the-pre-element"
  },
  "blockquote": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "flow"
    ],
    "link": "https://html.spec.whatwg.org/multipage/grouping-content.html#the-blockquote-element"
  },
  "ol": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "Zero or more li and script-supporting elements."
    ],
    "link": "https://html.spec.whatwg.org/multipage/grouping-content.html#the-ol-element"
  },
  "ul": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "Zero or more li and script-supporting elements."
    ],
    "link": "https://html.spec.whatwg.org/multipage/grouping-content.html#the-ul-element"
  },
  "menu": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "Zero or more li and script-supporting elements."
    ],
    "link": "https://html.spec.whatwg.org/multipage/grouping-content.html#the-menu-element"
  },
  "li": {
    "categories": [],
    "contentModel": [
      "flow"
    ],
    "link": "https://html.spec.whatwg.org/multipage/grouping-content.html#the-li-element"
  },
  "dl": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "Either: Zero or more groups each consisting of one or more dt elements followed by one or more dd elements, optionally intermixed with script-supporting elements.",
      "Or: One or more div elements, optionally intermixed with script-supporting elements."
    ],
    "link": "https://html.spec.whatwg.org/multipage/grouping-content.html#the-dl-element"
  },
  "dt": {
    "categories": [],
    "contentModel": [
      "Flow content, but with no header, footer, sectioning content, or heading content descendants."
    ],
    "link": "https://html.spec.whatwg.org/multipage/grouping-content.html#the-dt-element"
  },
  "dd": {
    "categories": [],
    "contentModel": [
      "flow"
    ],
    "link": "https://html.spec.whatwg.org/multipage/grouping-content.html#the-dd-element"
  },
  "figure": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "Either: one figcaption element followed by flow content.",
      "Or: flow content followed by one figcaption element.",
      "Or: flow content."
    ],
    "link": "https://html.spec.whatwg.org/multipage/grouping-content.html#the-figure-element"
  },
  "figcaption": {
    "categories": [],
    "contentModel": [
      "flow"
    ],
    "link": "https://html.spec.whatwg.org/multipage/grouping-content.html#the-figcaption-element"
  },
  "main": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "flow"
    ],
    "link": "https://html.spec.whatwg.org/multipage/grouping-content.html#the-main-element"
  },
  "search": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "flow"
    ],
    "link": "https://html.spec.whatwg.org/multipage/grouping-content.html#the-search-element"
  },
  "div": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "If the element is a child of a dl element: One or more dt elements followed by one or more dd elements, optionally intermixed with script-supporting elements.",
      "Otherwise, if the element is a descendant of an option element: Zero or more option element inner content elements.",
      "Otherwise, if the element is a descendant of an optgroup element: Zero or more optgroup element inner content elements.",
      "Otherwise, if the element is a descendant of a select element: Zero or more select element inner content elements.",
      "Otherwise: flow content."
    ],
    "link": "https://html.spec.whatwg.org/multipage/grouping-content.html#the-div-element"
  },
  "a": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "Transparent, but there must be no interactive content descendant, a element descendant, or descendant with the tabindex attribute specified."
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-a-element"
  },
  "em": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-em-element"
  },
  "strong": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-strong-element"
  },
  "small": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-small-element"
  },
  "s": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-s-element"
  },
  "cite": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-cite-element"
  },
  "q": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-q-element"
  },
  "dfn": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "Phrasing content, but there must be no dfn element descendants."
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-dfn-element"
  },
  "abbr": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-abbr-element"
  },
  "ruby": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "See prose."
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-ruby-element"
  },
  "rt": {
    "categories": [],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-rt-element"
  },
  "rp": {
    "categories": [],
    "contentModel": [
      "Text."
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-rp-element"
  },
  "data": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-data-element"
  },
  "time": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "If the element has a datetime attribute: Phrasing content.",
      "Otherwise: Text, but must match requirements described in prose below."
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-time-element"
  },
  "code": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-code-element"
  },
  "var": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-var-element"
  },
  "samp": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-samp-element"
  },
  "kbd": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-kbd-element"
  },
  "sub": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-sub-and-sup-elements"
  },
  "sup": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-sub-and-sup-elements"
  },
  "i": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-i-element"
  },
  "b": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-b-element"
  },
  "u": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-u-element"
  },
  "mark": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-mark-element"
  },
  "bdi": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-bdi-element"
  },
  "bdo": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-bdo-element"
  },
  "span": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "If the element is a descendant of an option element: Zero or more option element inner content elements, except div elements.",
      "Otherwise: Phrasing content."
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-span-element"
  },
  "br": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "Nothing."
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-br-element"
  },
  "wbr": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "Nothing."
    ],
    "link": "https://html.spec.whatwg.org/multipage/text-level-semantics.html#the-wbr-element"
  },
  "ins": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "Transparent."
    ],
    "link": "https://html.spec.whatwg.org/multipage/edits.html#the-ins-element"
  },
  "del": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "Transparent."
    ],
    "link": "https://html.spec.whatwg.org/multipage/edits.html#the-del-element"
  },
  "picture": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "Zero or more source elements, followed by one img element, optionally intermixed with script-supporting elements."
    ],
    "link": "https://html.spec.whatwg.org/multipage/embedded-content.html#the-picture-element"
  },
  "source": {
    "categories": [],
    "contentModel": [
      "Nothing."
    ],
    "link": "https://html.spec.whatwg.org/multipage/embedded-content.html#the-source-element"
  },
  "img": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "Nothing."
    ],
    "link": "https://html.spec.whatwg.org/multipage/embedded-content.html#the-img-element"
  },
  "iframe": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "Nothing."
    ],
    "link": "https://html.spec.whatwg.org/multipage/iframe-embed-object.html#the-iframe-element"
  },
  "embed": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "Nothing."
    ],
    "link": "https://html.spec.whatwg.org/multipage/iframe-embed-object.html#the-embed-element"
  },
  "object": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "Transparent."
    ],
    "link": "https://html.spec.whatwg.org/multipage/iframe-embed-object.html#the-object-element"
  },
  "video": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "If the element has a src attribute: zero or more track elements, then transparent, but with no media element descendants.",
      "If the element does not have a src attribute: zero or more source elements, then zero or more track elements, then transparent, but with no media element descendants."
    ],
    "link": "https://html.spec.whatwg.org/multipage/media.html#the-video-element"
  },
  "audio": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "If the element has a src attribute: zero or more track elements, then transparent, but with no media element descendants.",
      "If the element does not have a src attribute: zero or more source elements, then zero or more track elements, then transparent, but with no media element descendants."
    ],
    "link": "https://html.spec.whatwg.org/multipage/media.html#the-audio-element"
  },
  "track": {
    "categories": [],
    "contentModel": [
      "Nothing."
    ],
    "link": "https://html.spec.whatwg.org/multipage/media.html#the-track-element"
  },
  "map": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "Transparent."
    ],
    "link": "https://html.spec.whatwg.org/multipage/image-maps.html#the-map-element"
  },
  "area": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "Nothing."
    ],
    "link": "https://html.spec.whatwg.org/multipage/image-maps.html#the-area-element"
  },
  "table": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "In this order: optionally a caption element, followed by zero or more colgroup elements, followed optionally by a thead element, followed by either zero or more tbody elements or one or more tr elements, followed optionally by a tfoot element, optionally intermixed with one or more script-supporting elements."
    ],
    "link": "https://html.spec.whatwg.org/multipage/tables.html#the-table-element"
  },
  "caption": {
    "categories": [],
    "contentModel": [
      "Flow content, but with no descendant table elements."
    ],
    "link": "https://html.spec.whatwg.org/multipage/tables.html#the-caption-element"
  },
  "colgroup": {
    "categories": [],
    "contentModel": [
      "If the span attribute is present: Nothing.",
      "If the span attribute is absent: Zero or more col and template elements."
    ],
    "link": "https://html.spec.whatwg.org/multipage/tables.html#the-colgroup-element"
  },
  "col": {
    "categories": [],
    "contentModel": [
      "Nothing."
    ],
    "link": "https://html.spec.whatwg.org/multipage/tables.html#the-col-element"
  },
  "tbody": {
    "categories": [],
    "contentModel": [
      "Zero or more tr and script-supporting elements."
    ],
    "link": "https://html.spec.whatwg.org/multipage/tables.html#the-tbody-element"
  },
  "thead": {
    "categories": [],
    "contentModel": [
      "Zero or more tr and script-supporting elements."
    ],
    "link": "https://html.spec.whatwg.org/multipage/tables.html#the-thead-element"
  },
  "tfoot": {
    "categories": [],
    "contentModel": [
      "Zero or more tr and script-supporting elements."
    ],
    "link": "https://html.spec.whatwg.org/multipage/tables.html#the-tfoot-element"
  },
  "tr": {
    "categories": [],
    "contentModel": [
      "Zero or more td, th, and script-supporting elements."
    ],
    "link": "https://html.spec.whatwg.org/multipage/tables.html#the-tr-element"
  },
  "td": {
    "categories": [],
    "contentModel": [
      "flow"
    ],
    "link": "https://html.spec.whatwg.org/multipage/tables.html#the-td-element"
  },
  "th": {
    "categories": [],
    "contentModel": [
      "Flow content, but with no header, footer, sectioning content, or heading content descendants."
    ],
    "link": "https://html.spec.whatwg.org/multipage/tables.html#the-th-element"
  },
  "form": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "Flow content, but with no form element descendants."
    ],
    "link": "https://html.spec.whatwg.org/multipage/forms.html#the-form-element"
  },
  "label": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "Phrasing content, but with no descendant labelable elements unless it is the element's labeled control, and no descendant label elements."
    ],
    "link": "https://html.spec.whatwg.org/multipage/forms.html#the-label-element"
  },
  "input": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "Nothing."
    ],
    "link": "https://html.spec.whatwg.org/multipage/input.html#the-input-element"
  },
  "button": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "Phrasing content, but there must be no interactive content descendant and no descendant with the tabindex attribute specified. If the element is the first child of a select element, then it may also have zero or one descendant selectedcontent element."
    ],
    "link": "https://html.spec.whatwg.org/multipage/form-elements.html#the-button-element"
  },
  "select": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "Zero or one button elements if the select is a drop-down box, followed by zero or more select element inner content elements."
    ],
    "link": "https://html.spec.whatwg.org/multipage/form-elements.html#the-select-element"
  },
  "datalist": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "Either: phrasing content.",
      "Or: Zero or more option and script-supporting elements."
    ],
    "link": "https://html.spec.whatwg.org/multipage/form-elements.html#the-datalist-element"
  },
  "optgroup": {
    "categories": [],
    "contentModel": [
      "Zero or one legend element followed by zero or more optgroup element inner content elements."
    ],
    "link": "https://html.spec.whatwg.org/multipage/form-elements.html#the-optgroup-element"
  },
  "option": {
    "categories": [],
    "contentModel": [
      "If the element has a label attribute and a value attribute: Nothing.",
      "If the element has a label attribute but no value attribute: Text.",
      "If the element has no label attribute and is not a descendant of a datalist element: Zero or more option element inner content elements.",
      "If the element has no label attribute and is a descendant of a datalist element: Text."
    ],
    "link": "https://html.spec.whatwg.org/multipage/form-elements.html#the-option-element"
  },
  "textarea": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "Text."
    ],
    "link": "https://html.spec.whatwg.org/multipage/form-elements.html#the-textarea-element"
  },
  "output": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "phrasing"
    ],
    "link": "https://html.spec.whatwg.org/multipage/form-elements.html#the-output-element"
  },
  "progress": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "Phrasing content, but there must be no progress element descendants."
    ],
    "link": "https://html.spec.whatwg.org/multipage/form-elements.html#the-progress-element"
  },
  "meter": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "Phrasing content, but there must be no meter element descendants."
    ],
    "link": "https://html.spec.whatwg.org/multipage/form-elements.html#the-meter-element"
  },
  "fieldset": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "Optionally, a legend element, followed by flow content."
    ],
    "link": "https://html.spec.whatwg.org/multipage/form-elements.html#the-fieldset-element"
  },
  "legend": {
    "categories": [],
    "contentModel": [
      "If the element is a child of an optgroup element: Phrasing content, but there must be no interactive content and no descendant with the tabindex attribute.",
      "Otherwise: Phrasing content, optionally intermixed with heading content."
    ],
    "link": "https://html.spec.whatwg.org/multipage/form-elements.html#the-legend-element"
  },
  "selectedcontent": {
    "categories": [
      "phrasing"
    ],
    "contentModel": [
      "Nothing."
    ],
    "link": "https://html.spec.whatwg.org/multipage/form-elements.html#the-selectedcontent-element"
  },
  "details": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "One summary element followed by flow content."
    ],
    "link": "https://html.spec.whatwg.org/multipage/interactive-elements.html#the-details-element"
  },
  "summary": {
    "categories": [],
    "contentModel": [
      "Phrasing content, optionally intermixed with heading content."
    ],
    "link": "https://html.spec.whatwg.org/multipage/interactive-elements.html#the-summary-element"
  },
  "dialog": {
    "categories": [
      "flow"
    ],
    "contentModel": [
      "flow"
    ],
    "link": "https://html.spec.whatwg.org/multipage/interactive-elements.html#the-dialog-element"
  },
  "script": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "If there is no src attribute, depends on the value of the type attribute, but must match script content restrictions.",
      "If there is a src attribute, the element must be either empty or contain only script documentation that also matches script content restrictions."
    ],
    "link": "https://html.spec.whatwg.org/multipage/scripting.html#the-script-element"
  },
  "noscript": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "When scripting is disabled, in a head element: in any order, zero or more link elements, zero or more style elements, and zero or more meta elements.",
      "When scripting is disabled, not in a head element: transparent, but there must be no noscript element descendants.",
      "Otherwise: text that conforms to the requirements given in the prose."
    ],
    "link": "https://html.spec.whatwg.org/multipage/scripting.html#the-noscript-element"
  },
  "template": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "Nothing (for clarification, see example)."
    ],
    "link": "https://html.spec.whatwg.org/multipage/scripting.html#the-template-element"
  },
  "slot": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "transparent"
    ],
    "link": "https://html.spec.whatwg.org/multipage/scripting.html#the-slot-element"
  },
  "canvas": {
    "categories": [
      "flow",
      "phrasing"
    ],
    "contentModel": [
      "Transparent, but with no interactive content descendants except for a elements, img elements with usemap attributes, button elements, input elements whose type attribute are in the Checkbox or Radio Button states, input elements that are buttons, and select elements with a multiple attribute or a display size greater than 1."
    ],
    "link": "https://html.spec.whatwg.org/multipage/canvas.html#the-canvas-element"
  }
}