class Asciidoctor::Converter::Html5Converter

def convert_section node
  doc_attrs = node.document.attributes
  level = node.level
  if node.caption
    title = node.captioned_title
  elsif node.numbered && level <= (doc_attrs['sectnumlevels'] || 3).to_i
    if level < 2 && node.document.doctype == 'book'
      case node.sectname
      when 'chapter'
        title = %(#{(signifier = doc_attrs['chapter-signifier']) ? "#{signifier} " : ''}#{node.sectnum} #{node.title})
      when 'part'
        title = %(#{(signifier = doc_attrs['part-signifier']) ? "#{signifier} " : ''}#{node.sectnum nil, ':'} #{node.title})
      else
        title = %(#{node.sectnum} #{node.title})
      end
    else
      title = %(#{node.sectnum} #{node.title})
    end
  else
    title = node.title
  end
  if node.id
    id_attr = %( id="#{id = node.id}")
    if doc_attrs['sectlinks']
      title = %(<a class="link" href="##{id}">#{title}</a>)
    end
    if doc_attrs['sectanchors']
      # QUESTION should we add a font-based icon in anchor if icons=font?
      if doc_attrs['sectanchors'] == 'after'
        title = %(#{title}<a class="anchor" href="##{id}"></a>)
      else
        title = %(<a class="anchor" href="##{id}"></a>#{title})
      end
    end
  else
    id_attr = ''
  end
  if level == 0
    %(<h1#{id_attr} class="sect0#{(role = node.role) ? " #{role}" : ''}">#{title}</h1>
node.content})
  else
    %(<div class="sect#{level}#{(role = node.role) ? " #{role}" : ''}">
#{level + 1}#{id_attr}>#{title}</h#{level + 1}>
level == 1 ? %[<div class="sectionbody">
node.content}
div>] : node.content}
div>)
  end
end