in jekyll/plugins/markdown_converter.rb [27:46]
def convert_header(el, indent)
attr = el.attr.dup
el_id = generate_id(el.options[:raw_text])
if @options[:auto_ids] && !attr['id']
attr['id'] = el_id
end
@toc << [el.options[:level], el_id, el.children] if el_id && in_toc?(el)
level = output_header_level(el.options[:level])
if level <= 3
anchor = Element.new(:a, nil, {'href' => '#' + el_id, 'class' => 'anchor-link'})
el.children.push(anchor)
end
anchor = format_as_block_html("a", {'name' => el_id, 'class' => 'elem-anchor'}, inner(Element.new(:a, nil), indent), indent)
header = format_as_block_html("h#{level}", attr, inner(el, indent), indent)
anchor + header
end