anchor.diff:  ]).
   
   -type text() :: iodata() | {trans, list( {atom(), binary()} )}.
  +-type unsafe_text() :: iodata()
  +                     | {trans, list( {atom(), iodata()} )}
  +                     | {trans, list( {binary(), iodata()} )}
  +                     | {trans, map()}.
   -type maybe_text() :: undefined | text().
  +-type maybe_unsafe_text() :: undefined | unsafe_text().
   -type maybe_binary() :: undefined | binary().
   -type maybe_iodata() :: undefined | iodata().
   
  
positive.code: 
  
  %% @doc Ensure that a string is escaped so that it is valid within HTML/ XML.
  -spec escape_check( maybe_text() ) -> maybe_text().
  escape_check({trans, Tr}) when is_list(Tr) ->
      Tr1 = lists:filtermap(
          fun
  
negative.code: 
  
  %% @doc Escape a string so that it is valid within HTML/ XML.
  -spec escape( maybe_unsafe_text() ) -> maybe_text().
  escape({trans, Tr}) when is_list(Tr) ->
      Tr1 = lists:filtermap(
          fun
  