markdown :: Decorator :: add_em
# Render an emphasis text. fun add_em(v: PROCESSOR, text: Text) is abstract
redef fun add_em(v, text) do v.add "*" v.add text v.add "*" end
redef fun add_em(v, text) do v.add "<em>" v.add text v.add "</em>" end
redef fun add_em(v, text) do v.add "\\f[I]" v.add text v.add "\\f[]" end