anchor.diff:  %%
   %% Tests
   %%
  +-ifdef(TEST).
   -include_lib("eunit/include/eunit.hrl").
  --ifdef(TEST).
   
   to_html_test() ->
       ?assertEqual(
  
positive.code:             S
      end.
  
  tokenize_literal(Bin, S) ->
      tokenize_literal(Bin, S, []).
  
  tokenize_literal(Bin, S=#decoder{offset=O}, Acc) ->
      case Bin of
  
negative.code:     lists:reverse(Acc);
  to_html([{'=', Content} | Rest], Acc) ->
      to_html(Rest, [Content | Acc]);
  to_html([{pi, Bin} | Rest], Acc) ->
      Open = [<<"<?">>,
              Bin,
              <<"?>">>],
      to_html(Rest, [Open | Acc]);
  to_html([{pi, Tag, Attrs} | Rest], Acc) ->
      Open = [<<"<?">>,
              Tag,
  