class Kramdown::Parser::GFM

def parse_strikethrough_gfm
  line_number = @src.current_line_number
  @src.pos += @src.matched_size
  el = Element.new(:html_element, 'del', {}, :category => :span, :line => line_number)
  @tree.children << el
  env = save_env
  reset_env(:src => Kramdown::Utils::StringScanner.new(@src.matched[2..-3], line_number),
            :text_type => :text)
  parse_spans(el)
  restore_env(env)
  el
end