anchor.diff:      end;
   escape_value_check(B) when is_binary(B) ->
       escape_check(B);
  -escape_value_check(V) -> 
  +escape_value_check(V) ->
       V.
   
   
  
positive.code: %% @spec unescape(iolist()) -> binary()
  unescape({trans, Tr}) ->
      {trans, [{Lang, unescape(V)} || {Lang,V} <- Tr]};
  unescape(undefined) -> 
      undefined;
  unescape(<<>>) -> 
      <<>>;
  unescape([]) ->
      <<>>;
  
negative.code: 
  unescape_in_charref(<<Ch/integer, Rest/binary>>, CharAcc, ContAcc) ->
      unescape_in_charref(Rest, <<CharAcc/binary, Ch>>, ContAcc).
  
  
  %% @doc Escape a text. Expands any urls to links with a nofollow attribute.
  %% @spec escape_link(Text) -> binary()
  