class Kramdown::Parser::Kramdown

def parse_atx_header
  if @tree.children.last && @tree.children.last.type != :blank
    return false
  end
  result = @src.scan(ATX_HEADER_MATCH)
  level, text, id = @src[1], @src[2].strip, @src[3]
  el = new_block_el(:header, nil, :level => level.length, :raw_text => text)
  add_text(text, el)
  el.options[:attr] = {'id' => id} if id
  @tree.children << el
  true
end