diff --git a/src/jsx.app.src b/src/jsx.app.src index e42951a..59cad9b 100644 --- a/src/jsx.app.src +++ b/src/jsx.app.src @@ -6,6 +6,7 @@ jsx, jsx_encoder, jsx_decoder, + jsx_parser, jsx_to_json, jsx_to_term, jsx_utils, diff --git a/src/jsx_parser.erl b/src/jsx_parser.erl index 17d728e..9146c67 100644 --- a/src/jsx_parser.erl +++ b/src/jsx_parser.erl @@ -45,16 +45,16 @@ parser(Handler, State, Opts) -> -ifndef(incomplete). -define(incomplete(State, Handler, Stack, Opts), - {incomplete, fun(Tokens) -> - State(Tokens, Handler, Stack, Opts) - ; (end_stream) -> + {incomplete, fun(end_stream) -> case State([end_json], Handler, Stack, Opts#opts{explicit_end=false}) of {incomplete, _} -> ?error([Handler, Stack, Opts]) ; Events -> Events - end + end + ; (Tokens) -> + State(Tokens, Handler, Stack, Opts) end } ). @@ -70,32 +70,44 @@ value([start_object|Tokens], Handler, Stack, Opts) -> object(Tokens, handle_event(start_object, Handler, Opts), [object|Stack], Opts); value([start_array|Tokens], Handler, Stack, Opts) -> array(Tokens, handle_event(start_array, Handler, Opts), [array|Stack], Opts); +value([{literal, true}|Tokens], Handler, [], Opts) -> + done(Tokens, handle_event({literal, true}, Handler, Opts), [], Opts); +value([{literal, false}|Tokens], Handler, [], Opts) -> + done(Tokens, handle_event({literal, false}, Handler, Opts), [], Opts); +value([{literal, null}|Tokens], Handler, [], Opts) -> + done(Tokens, handle_event({literal, null}, Handler, Opts), [], Opts); value([{literal, true}|Tokens], Handler, Stack, Opts) -> maybe_done(Tokens, handle_event({literal, true}, Handler, Opts), Stack, Opts); -value([true|Tokens], Handler, Stack, Opts) -> - maybe_done(Tokens, handle_event({literal, true}, Handler, Opts), Stack, Opts); value([{literal, false}|Tokens], Handler, Stack, Opts) -> maybe_done(Tokens, handle_event({literal, false}, Handler, Opts), Stack, Opts); -value([false|Tokens], Handler, Stack, Opts) -> - maybe_done(Tokens, handle_event({literal, false}, Handler, Opts), Stack, Opts); value([{literal, null}|Tokens], Handler, Stack, Opts) -> maybe_done(Tokens, handle_event({literal, null}, Handler, Opts), Stack, Opts); -value([null|Tokens], Handler, Stack, Opts) -> - maybe_done(Tokens, handle_event({literal, null}, Handler, Opts), Stack, Opts); +value([Literal|Tokens], Handler, Stack, Opts) when Literal == true; Literal == false; Literal == null -> + value([{literal, Literal}] ++ Tokens, Handler, Stack, Opts); +value([{integer, Number}|Tokens], Handler, [], Opts) when is_integer(Number) -> + done(Tokens, handle_event({integer, Number}, Handler, Opts), [], Opts); +value([{float, Number}|Tokens], Handler, [], Opts) when is_float(Number) -> + done(Tokens, handle_event({float, Number}, Handler, Opts), [], Opts); value([{integer, Number}|Tokens], Handler, Stack, Opts) when is_integer(Number) -> maybe_done(Tokens, handle_event({integer, Number}, Handler, Opts), Stack, Opts); value([{float, Number}|Tokens], Handler, Stack, Opts) when is_float(Number) -> maybe_done(Tokens, handle_event({float, Number}, Handler, Opts), Stack, Opts); value([{number, Number}|Tokens], Handler, Stack, Opts) when is_integer(Number) -> - maybe_done(Tokens, handle_event({integer, Number}, Handler, Opts), Stack, Opts); + value([{integer, Number}] ++ Tokens, Handler, Stack, Opts); value([{number, Number}|Tokens], Handler, Stack, Opts) when is_float(Number) -> - maybe_done(Tokens, handle_event({float, Number}, Handler, Opts), Stack, Opts); + value([{float, Number}] ++ Tokens, Handler, Stack, Opts); value([Number|Tokens], Handler, Stack, Opts) when is_integer(Number) -> - maybe_done(Tokens, handle_event({integer, Number}, Handler, Opts), Stack, Opts); + value([{integer, Number}] ++ Tokens, Handler, Stack, Opts); value([Number|Tokens], Handler, Stack, Opts) when is_float(Number) -> - maybe_done(Tokens, handle_event({float, Number}, Handler, Opts), Stack, Opts); + value([{float, Number}] ++ Tokens, Handler, Stack, Opts); +value([{string, String}|Tokens], Handler, [], Opts) when is_binary(String) -> + done(Tokens, handle_event({string, clean_string(String, Opts)}, Handler, Opts), [], Opts); value([{string, String}|Tokens], Handler, Stack, Opts) when is_binary(String) -> - maybe_done(Tokens, handle_event({string, String}, Handler, Opts), Stack, Opts); + maybe_done(Tokens, handle_event({string, clean_string(String, Opts)}, Handler, Opts), Stack, Opts); +value([String|Tokens], Handler, Stack, Opts) when is_binary(String) -> + value([{string, String}] ++ Tokens, Handler, Stack, Opts); +value([], Handler, Stack, Opts) -> + ?incomplete(value, Handler, Stack, Opts); value(BadTokens, Handler, Stack, Opts) when is_list(BadTokens) -> ?error([BadTokens, Handler, Stack, Opts]); value(Token, Handler, Stack, Opts) -> @@ -103,8 +115,12 @@ value(Token, Handler, Stack, Opts) -> object([end_object|Tokens], Handler, [object|Stack], Opts) -> maybe_done(Tokens, handle_event(end_object, Handler, Opts), Stack, Opts); -object([{key, Key}|Tokens], Handler, Stack, Opts) when is_binary(Key) -> - value(Tokens, handle_event({key, Key}, Handler, Opts), Stack, Opts); +object([{key, Key}|Tokens], Handler, Stack, Opts) when is_atom(Key); is_binary(Key) -> + value(Tokens, handle_event({key, clean_string(fix_key(Key), Opts)}, Handler, Opts), Stack, Opts); +object([Key|Tokens], Handler, Stack, Opts) when is_atom(Key); is_binary(Key) -> + value(Tokens, handle_event({key, clean_string(fix_key(Key), Opts)}, Handler, Opts), Stack, Opts); +object([], Handler, Stack, Opts) -> + ?incomplete(object, Handler, Stack, Opts); object(BadTokens, Handler, Stack, Opts) when is_list(BadTokens) -> ?error([BadTokens, Handler, Stack, Opts]); object(Token, Handler, Stack, Opts) -> @@ -112,23 +128,428 @@ object(Token, Handler, Stack, Opts) -> array([end_array|Tokens], Handler, [array|Stack], Opts) -> maybe_done(Tokens, handle_event(end_array, Handler, Opts), Stack, Opts); +array([], Handler, Stack, Opts) -> + ?incomplete(array, Handler, Stack, Opts); array(Tokens, Handler, Stack, Opts) when is_list(Tokens) -> value(Tokens, Handler, Stack, Opts); array(Token, Handler, Stack, Opts) -> array([Token], Handler, Stack, Opts). maybe_done([end_json], Handler, [], Opts) -> - {_, State} = handle_event(end_json, Handler, Opts), - State; + done([], Handler, [], Opts); maybe_done(Tokens, Handler, [object|_] = Stack, Opts) when is_list(Tokens) -> object(Tokens, Handler, Stack, Opts); maybe_done(Tokens, Handler, [array|_] = Stack, Opts) when is_list(Tokens) -> array(Tokens, Handler, Stack, Opts); +maybe_done([], Handler, Stack, Opts) -> + ?incomplete(maybe_done, Handler, Stack, Opts); maybe_done(BadTokens, Handler, Stack, Opts) when is_list(BadTokens) -> ?error([BadTokens, Handler, Stack, Opts]); maybe_done(Token, Handler, Stack, Opts) -> maybe_done([Token], Handler, Stack, Opts). +done(Tokens, Handler, [], Opts) when Tokens == [end_json]; Tokens == [] -> + {_, State} = handle_event(end_json, Handler, Opts), + State; +done(BadTokens, Handler, Stack, Opts) when is_list(BadTokens) -> + ?error([BadTokens, Handler, Stack, Opts]); +done(Token, Handler, Stack, Opts) -> + done([Token], Handler, Stack, Opts). + + +fix_key(Key) when is_atom(Key) -> fix_key(atom_to_binary(Key, utf8)); +fix_key(Key) when is_binary(Key) -> Key. + + +clean_string(Bin, Opts) -> + case Opts#opts.replaced_bad_utf8 orelse Opts#opts.escaped_strings of + true -> clean(Bin, [], Opts) + ; false -> ensure_clean(Bin), Bin + end. + + +%% fast path for no escaping and no correcting, throws error if string is 'bad' +ensure_clean(<<>>) -> ok; +ensure_clean(<<0, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<1, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<2, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<3, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<4, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<5, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<6, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<7, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<8, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<9, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<10, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<11, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<12, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<13, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<14, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<15, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<16, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<17, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<18, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<19, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<20, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<21, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<22, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<23, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<24, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<25, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<26, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<27, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<28, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<29, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<30, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<31, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<32, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<33, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<34, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<35, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<36, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<37, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<38, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<39, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<40, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<41, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<42, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<43, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<44, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<45, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<46, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<47, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<48, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<49, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<50, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<51, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<52, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<53, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<54, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<55, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<56, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<57, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<58, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<59, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<60, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<61, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<62, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<63, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<64, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<65, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<66, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<67, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<68, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<69, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<70, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<71, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<72, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<73, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<74, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<75, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<76, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<77, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<78, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<79, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<80, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<81, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<82, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<83, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<84, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<85, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<86, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<87, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<88, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<89, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<90, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<91, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<92, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<93, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<94, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<95, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<96, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<97, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<98, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<99, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<100, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<101, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<102, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<103, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<104, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<105, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<106, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<107, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<108, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<109, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<110, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<111, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<112, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<113, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<114, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<115, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<116, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<117, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<118, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<119, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<120, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<121, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<122, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<123, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<124, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<125, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<126, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<<127, Rest/binary>>) -> ensure_clean(Rest); +ensure_clean(<>) when X < 16#800 -> ensure_clean(Rest); +ensure_clean(<>) when X < 16#dcff -> ensure_clean(Rest); +ensure_clean(<>) when X > 16#dfff, X < 16#fdd0 -> ensure_clean(Rest); +ensure_clean(<>) when X > 16#fdef, X < 16#fffe -> ensure_clean(Rest); +ensure_clean(<>) when X >= 16#10000, X < 16#1fffe -> ensure_clean(Rest); +ensure_clean(<>) when X >= 16#20000, X < 16#2fffe -> ensure_clean(Rest); +ensure_clean(<>) when X >= 16#30000, X < 16#3fffe -> ensure_clean(Rest); +ensure_clean(<>) when X >= 16#40000, X < 16#4fffe -> ensure_clean(Rest); +ensure_clean(<>) when X >= 16#50000, X < 16#5fffe -> ensure_clean(Rest); +ensure_clean(<>) when X >= 16#60000, X < 16#6fffe -> ensure_clean(Rest); +ensure_clean(<>) when X >= 16#70000, X < 16#7fffe -> ensure_clean(Rest); +ensure_clean(<>) when X >= 16#80000, X < 16#8fffe -> ensure_clean(Rest); +ensure_clean(<>) when X >= 16#90000, X < 16#9fffe -> ensure_clean(Rest); +ensure_clean(<>) when X >= 16#a0000, X < 16#afffe -> ensure_clean(Rest); +ensure_clean(<>) when X >= 16#b0000, X < 16#bfffe -> ensure_clean(Rest); +ensure_clean(<>) when X >= 16#c0000, X < 16#cfffe -> ensure_clean(Rest); +ensure_clean(<>) when X >= 16#d0000, X < 16#dfffe -> ensure_clean(Rest); +ensure_clean(<>) when X >= 16#e0000, X < 16#efffe -> ensure_clean(Rest); +ensure_clean(<>) when X >= 16#f0000, X < 16#ffffe -> ensure_clean(Rest); +ensure_clean(<>) when X >= 16#100000, X < 16#10fffe -> ensure_clean(Rest); +ensure_clean(Bin) -> erlang:error(badarg, [Bin]). + + +%% escape and/or replace bad codepoints if requested +clean(<<>>, Acc, _Opts) -> unicode:characters_to_binary(lists:reverse(Acc)); +clean(<<0, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(0, Opts) ++ Acc, Opts); +clean(<<1, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(1, Opts) ++ Acc, Opts); +clean(<<2, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(2, Opts) ++ Acc, Opts); +clean(<<3, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(3, Opts) ++ Acc, Opts); +clean(<<4, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(4, Opts) ++ Acc, Opts); +clean(<<5, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(5, Opts) ++ Acc, Opts); +clean(<<6, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(6, Opts) ++ Acc, Opts); +clean(<<7, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(7, Opts) ++ Acc, Opts); +clean(<<8, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(8, Opts) ++ Acc, Opts); +clean(<<9, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(9, Opts) ++ Acc, Opts); +clean(<<10, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(10, Opts) ++ Acc, Opts); +clean(<<11, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(11, Opts) ++ Acc, Opts); +clean(<<12, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(12, Opts) ++ Acc, Opts); +clean(<<13, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(13, Opts) ++ Acc, Opts); +clean(<<14, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(14, Opts) ++ Acc, Opts); +clean(<<15, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(15, Opts) ++ Acc, Opts); +clean(<<16, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(16, Opts) ++ Acc, Opts); +clean(<<17, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(17, Opts) ++ Acc, Opts); +clean(<<18, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(18, Opts) ++ Acc, Opts); +clean(<<19, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(19, Opts) ++ Acc, Opts); +clean(<<20, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(20, Opts) ++ Acc, Opts); +clean(<<21, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(21, Opts) ++ Acc, Opts); +clean(<<22, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(22, Opts) ++ Acc, Opts); +clean(<<23, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(23, Opts) ++ Acc, Opts); +clean(<<24, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(24, Opts) ++ Acc, Opts); +clean(<<25, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(25, Opts) ++ Acc, Opts); +clean(<<26, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(26, Opts) ++ Acc, Opts); +clean(<<27, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(27, Opts) ++ Acc, Opts); +clean(<<28, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(28, Opts) ++ Acc, Opts); +clean(<<29, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(29, Opts) ++ Acc, Opts); +clean(<<30, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(30, Opts) ++ Acc, Opts); +clean(<<31, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(31, Opts) ++ Acc, Opts); +clean(<<32, Rest/binary>>, Acc, Opts) -> clean(Rest, [32] ++ Acc, Opts); +clean(<<33, Rest/binary>>, Acc, Opts) -> clean(Rest, [33] ++ Acc, Opts); +clean(<<34, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(34, Opts) ++ Acc, Opts); +clean(<<35, Rest/binary>>, Acc, Opts) -> clean(Rest, [35] ++ Acc, Opts); +clean(<<36, Rest/binary>>, Acc, Opts) -> clean(Rest, [36] ++ Acc, Opts); +clean(<<37, Rest/binary>>, Acc, Opts) -> clean(Rest, [37] ++ Acc, Opts); +clean(<<38, Rest/binary>>, Acc, Opts) -> clean(Rest, [38] ++ Acc, Opts); +clean(<<39, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(39, Opts) ++ Acc, Opts); +clean(<<40, Rest/binary>>, Acc, Opts) -> clean(Rest, [40] ++ Acc, Opts); +clean(<<41, Rest/binary>>, Acc, Opts) -> clean(Rest, [41] ++ Acc, Opts); +clean(<<42, Rest/binary>>, Acc, Opts) -> clean(Rest, [42] ++ Acc, Opts); +clean(<<43, Rest/binary>>, Acc, Opts) -> clean(Rest, [43] ++ Acc, Opts); +clean(<<44, Rest/binary>>, Acc, Opts) -> clean(Rest, [44] ++ Acc, Opts); +clean(<<45, Rest/binary>>, Acc, Opts) -> clean(Rest, [45] ++ Acc, Opts); +clean(<<46, Rest/binary>>, Acc, Opts) -> clean(Rest, [46] ++ Acc, Opts); +clean(<<47, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(47, Opts) ++ Acc, Opts); +clean(<<48, Rest/binary>>, Acc, Opts) -> clean(Rest, [48] ++ Acc, Opts); +clean(<<49, Rest/binary>>, Acc, Opts) -> clean(Rest, [49] ++ Acc, Opts); +clean(<<50, Rest/binary>>, Acc, Opts) -> clean(Rest, [50] ++ Acc, Opts); +clean(<<51, Rest/binary>>, Acc, Opts) -> clean(Rest, [51] ++ Acc, Opts); +clean(<<52, Rest/binary>>, Acc, Opts) -> clean(Rest, [52] ++ Acc, Opts); +clean(<<53, Rest/binary>>, Acc, Opts) -> clean(Rest, [53] ++ Acc, Opts); +clean(<<54, Rest/binary>>, Acc, Opts) -> clean(Rest, [54] ++ Acc, Opts); +clean(<<55, Rest/binary>>, Acc, Opts) -> clean(Rest, [55] ++ Acc, Opts); +clean(<<56, Rest/binary>>, Acc, Opts) -> clean(Rest, [56] ++ Acc, Opts); +clean(<<57, Rest/binary>>, Acc, Opts) -> clean(Rest, [57] ++ Acc, Opts); +clean(<<58, Rest/binary>>, Acc, Opts) -> clean(Rest, [58] ++ Acc, Opts); +clean(<<59, Rest/binary>>, Acc, Opts) -> clean(Rest, [59] ++ Acc, Opts); +clean(<<60, Rest/binary>>, Acc, Opts) -> clean(Rest, [60] ++ Acc, Opts); +clean(<<61, Rest/binary>>, Acc, Opts) -> clean(Rest, [61] ++ Acc, Opts); +clean(<<62, Rest/binary>>, Acc, Opts) -> clean(Rest, [62] ++ Acc, Opts); +clean(<<63, Rest/binary>>, Acc, Opts) -> clean(Rest, [63] ++ Acc, Opts); +clean(<<64, Rest/binary>>, Acc, Opts) -> clean(Rest, [64] ++ Acc, Opts); +clean(<<65, Rest/binary>>, Acc, Opts) -> clean(Rest, [65] ++ Acc, Opts); +clean(<<66, Rest/binary>>, Acc, Opts) -> clean(Rest, [66] ++ Acc, Opts); +clean(<<67, Rest/binary>>, Acc, Opts) -> clean(Rest, [67] ++ Acc, Opts); +clean(<<68, Rest/binary>>, Acc, Opts) -> clean(Rest, [68] ++ Acc, Opts); +clean(<<69, Rest/binary>>, Acc, Opts) -> clean(Rest, [69] ++ Acc, Opts); +clean(<<70, Rest/binary>>, Acc, Opts) -> clean(Rest, [70] ++ Acc, Opts); +clean(<<71, Rest/binary>>, Acc, Opts) -> clean(Rest, [71] ++ Acc, Opts); +clean(<<72, Rest/binary>>, Acc, Opts) -> clean(Rest, [72] ++ Acc, Opts); +clean(<<73, Rest/binary>>, Acc, Opts) -> clean(Rest, [73] ++ Acc, Opts); +clean(<<74, Rest/binary>>, Acc, Opts) -> clean(Rest, [74] ++ Acc, Opts); +clean(<<75, Rest/binary>>, Acc, Opts) -> clean(Rest, [75] ++ Acc, Opts); +clean(<<76, Rest/binary>>, Acc, Opts) -> clean(Rest, [76] ++ Acc, Opts); +clean(<<77, Rest/binary>>, Acc, Opts) -> clean(Rest, [77] ++ Acc, Opts); +clean(<<78, Rest/binary>>, Acc, Opts) -> clean(Rest, [78] ++ Acc, Opts); +clean(<<79, Rest/binary>>, Acc, Opts) -> clean(Rest, [79] ++ Acc, Opts); +clean(<<80, Rest/binary>>, Acc, Opts) -> clean(Rest, [80] ++ Acc, Opts); +clean(<<81, Rest/binary>>, Acc, Opts) -> clean(Rest, [81] ++ Acc, Opts); +clean(<<82, Rest/binary>>, Acc, Opts) -> clean(Rest, [82] ++ Acc, Opts); +clean(<<83, Rest/binary>>, Acc, Opts) -> clean(Rest, [83] ++ Acc, Opts); +clean(<<84, Rest/binary>>, Acc, Opts) -> clean(Rest, [84] ++ Acc, Opts); +clean(<<85, Rest/binary>>, Acc, Opts) -> clean(Rest, [85] ++ Acc, Opts); +clean(<<86, Rest/binary>>, Acc, Opts) -> clean(Rest, [86] ++ Acc, Opts); +clean(<<87, Rest/binary>>, Acc, Opts) -> clean(Rest, [87] ++ Acc, Opts); +clean(<<88, Rest/binary>>, Acc, Opts) -> clean(Rest, [88] ++ Acc, Opts); +clean(<<89, Rest/binary>>, Acc, Opts) -> clean(Rest, [89] ++ Acc, Opts); +clean(<<90, Rest/binary>>, Acc, Opts) -> clean(Rest, [90] ++ Acc, Opts); +clean(<<91, Rest/binary>>, Acc, Opts) -> clean(Rest, [91] ++ Acc, Opts); +clean(<<92, Rest/binary>>, Acc, Opts) -> clean(Rest, maybe_replace(92, Opts) ++ Acc, Opts); +clean(<<93, Rest/binary>>, Acc, Opts) -> clean(Rest, [93] ++ Acc, Opts); +clean(<<94, Rest/binary>>, Acc, Opts) -> clean(Rest, [94] ++ Acc, Opts); +clean(<<95, Rest/binary>>, Acc, Opts) -> clean(Rest, [95] ++ Acc, Opts); +clean(<<96, Rest/binary>>, Acc, Opts) -> clean(Rest, [96] ++ Acc, Opts); +clean(<<97, Rest/binary>>, Acc, Opts) -> clean(Rest, [97] ++ Acc, Opts); +clean(<<98, Rest/binary>>, Acc, Opts) -> clean(Rest, [98] ++ Acc, Opts); +clean(<<99, Rest/binary>>, Acc, Opts) -> clean(Rest, [99] ++ Acc, Opts); +clean(<<100, Rest/binary>>, Acc, Opts) -> clean(Rest, [100] ++ Acc, Opts); +clean(<<101, Rest/binary>>, Acc, Opts) -> clean(Rest, [101] ++ Acc, Opts); +clean(<<102, Rest/binary>>, Acc, Opts) -> clean(Rest, [102] ++ Acc, Opts); +clean(<<103, Rest/binary>>, Acc, Opts) -> clean(Rest, [103] ++ Acc, Opts); +clean(<<104, Rest/binary>>, Acc, Opts) -> clean(Rest, [104] ++ Acc, Opts); +clean(<<105, Rest/binary>>, Acc, Opts) -> clean(Rest, [105] ++ Acc, Opts); +clean(<<106, Rest/binary>>, Acc, Opts) -> clean(Rest, [106] ++ Acc, Opts); +clean(<<107, Rest/binary>>, Acc, Opts) -> clean(Rest, [107] ++ Acc, Opts); +clean(<<108, Rest/binary>>, Acc, Opts) -> clean(Rest, [108] ++ Acc, Opts); +clean(<<109, Rest/binary>>, Acc, Opts) -> clean(Rest, [109] ++ Acc, Opts); +clean(<<110, Rest/binary>>, Acc, Opts) -> clean(Rest, [110] ++ Acc, Opts); +clean(<<111, Rest/binary>>, Acc, Opts) -> clean(Rest, [111] ++ Acc, Opts); +clean(<<112, Rest/binary>>, Acc, Opts) -> clean(Rest, [112] ++ Acc, Opts); +clean(<<113, Rest/binary>>, Acc, Opts) -> clean(Rest, [113] ++ Acc, Opts); +clean(<<114, Rest/binary>>, Acc, Opts) -> clean(Rest, [114] ++ Acc, Opts); +clean(<<115, Rest/binary>>, Acc, Opts) -> clean(Rest, [115] ++ Acc, Opts); +clean(<<116, Rest/binary>>, Acc, Opts) -> clean(Rest, [116] ++ Acc, Opts); +clean(<<117, Rest/binary>>, Acc, Opts) -> clean(Rest, [117] ++ Acc, Opts); +clean(<<118, Rest/binary>>, Acc, Opts) -> clean(Rest, [118] ++ Acc, Opts); +clean(<<119, Rest/binary>>, Acc, Opts) -> clean(Rest, [119] ++ Acc, Opts); +clean(<<120, Rest/binary>>, Acc, Opts) -> clean(Rest, [120] ++ Acc, Opts); +clean(<<121, Rest/binary>>, Acc, Opts) -> clean(Rest, [121] ++ Acc, Opts); +clean(<<122, Rest/binary>>, Acc, Opts) -> clean(Rest, [122] ++ Acc, Opts); +clean(<<123, Rest/binary>>, Acc, Opts) -> clean(Rest, [123] ++ Acc, Opts); +clean(<<124, Rest/binary>>, Acc, Opts) -> clean(Rest, [124] ++ Acc, Opts); +clean(<<125, Rest/binary>>, Acc, Opts) -> clean(Rest, [125] ++ Acc, Opts); +clean(<<126, Rest/binary>>, Acc, Opts) -> clean(Rest, [126] ++ Acc, Opts); +clean(<<127, Rest/binary>>, Acc, Opts) -> clean(Rest, [127] ++ Acc, Opts); +clean(<>, Acc, Opts) when X < 16#800 -> + clean(Rest, [X] ++ Acc, Opts); +clean(<>, Acc, Opts) when X == 16#2028; X == 16#2029 -> + clean(Rest, maybe_replace(X, Opts) ++ Acc, Opts); +clean(<>, Acc, Opts) when X < 16#dcff -> + clean(Rest, [X] ++ Acc, Opts); +clean(<>, Acc, Opts) when X > 16#dfff, X < 16#fdd0 -> + clean(Rest, [X] ++ Acc, Opts); +clean(<>, Acc, Opts) when X > 16#fdef, X < 16#fffe -> + clean(Rest, [X] ++ Acc, Opts); +clean(<>, Acc, Opts) when X >= 16#10000, X < 16#1fffe -> + clean(Rest, [X] ++ Acc, Opts); +clean(<>, Acc, Opts) when X >= 16#20000, X < 16#2fffe -> + clean(Rest, [X] ++ Acc, Opts); +clean(<>, Acc, Opts) when X >= 16#30000, X < 16#3fffe -> + clean(Rest, [X] ++ Acc, Opts); +clean(<>, Acc, Opts) when X >= 16#40000, X < 16#4fffe -> + clean(Rest, [X] ++ Acc, Opts); +clean(<>, Acc, Opts) when X >= 16#50000, X < 16#5fffe -> + clean(Rest, [X] ++ Acc, Opts); +clean(<>, Acc, Opts) when X >= 16#60000, X < 16#6fffe -> + clean(Rest, [X] ++ Acc, Opts); +clean(<>, Acc, Opts) when X >= 16#70000, X < 16#7fffe -> + clean(Rest, [X] ++ Acc, Opts); +clean(<>, Acc, Opts) when X >= 16#80000, X < 16#8fffe -> + clean(Rest, [X] ++ Acc, Opts); +clean(<>, Acc, Opts) when X >= 16#90000, X < 16#9fffe -> + clean(Rest, [X] ++ Acc, Opts); +clean(<>, Acc, Opts) when X >= 16#a0000, X < 16#afffe -> + clean(Rest, [X] ++ Acc, Opts); +clean(<>, Acc, Opts) when X >= 16#b0000, X < 16#bfffe -> + clean(Rest, [X] ++ Acc, Opts); +clean(<>, Acc, Opts) when X >= 16#c0000, X < 16#cfffe -> + clean(Rest, [X] ++ Acc, Opts); +clean(<>, Acc, Opts) when X >= 16#d0000, X < 16#dfffe -> + clean(Rest, [X] ++ Acc, Opts); +clean(<>, Acc, Opts) when X >= 16#e0000, X < 16#efffe -> + clean(Rest, [X] ++ Acc, Opts); +clean(<>, Acc, Opts) when X >= 16#f0000, X < 16#ffffe -> + clean(Rest, [X] ++ Acc, Opts); +clean(<>, Acc, Opts) when X >= 16#100000, X < 16#10fffe -> + clean(Rest, [X] ++ Acc, Opts); +%% noncharacters +clean(<<_/utf8, Rest/binary>>, Acc, Opts) -> + clean(Rest, maybe_replace(noncharacter, Opts) ++ Acc, Opts); +%% surrogates +clean(<<237, X, _, Rest/binary>>, Acc, Opts) when X >= 160 -> + clean(Rest, maybe_replace(surrogate, Opts) ++ Acc, Opts); +%% u+fffe and u+ffff for R14BXX +clean(<<239, 191, X, Rest/binary>>, Acc, Opts) when X == 190; X == 191 -> + clean(Rest, maybe_replace(noncharacter, Opts) ++ Acc, Opts); +%% overlong encodings and missing continuations of a 2 byte sequence +clean(<>, Acc, Opts) when X >= 192, X =< 223 -> + clean(strip_continuations(Rest, 1), maybe_replace(badutf, Opts) ++ Acc, Opts); +%% overlong encodings and missing continuations of a 3 byte sequence +clean(<>, Acc, Opts) when X >= 224, X =< 239 -> + clean(strip_continuations(Rest, 2), maybe_replace(badutf, Opts) ++ Acc, Opts); +%% overlong encodings and missing continuations of a 4 byte sequence +clean(<>, Acc, Opts) when X >= 240, X =< 247 -> + clean(strip_continuations(Rest, 3), maybe_replace(badutf, Opts) ++ Acc, Opts); +clean(<<_, Rest/binary>>, Acc, Opts) -> + clean(Rest, maybe_replace(badutf, Opts) ++ Acc, Opts). + + +strip_continuations(Bin, 0) -> Bin; +strip_continuations(<>, N) when X >= 128, X =< 191 -> + strip_continuations(Rest, N - 1); +%% not a continuation byte +strip_continuations(Bin, _) -> Bin. + + +maybe_replace(X, #opts{dirty_strings=true}) when is_integer(X) -> [X]; +maybe_replace($\b, #opts{escaped_strings=true}) -> [$b, $\\]; +maybe_replace($\t, #opts{escaped_strings=true}) -> [$t, $\\]; +maybe_replace($\n, #opts{escaped_strings=true}) -> [$n, $\\]; +maybe_replace($\f, #opts{escaped_strings=true}) -> [$f, $\\]; +maybe_replace($\r, #opts{escaped_strings=true}) -> [$r, $\\]; +maybe_replace($\", #opts{escaped_strings=true}) -> [$\", $\\]; +maybe_replace($', Opts=#opts{escaped_strings=true}) -> + case Opts#opts.single_quoted_strings of + true -> [$', $\\] + ; false -> [$'] + end; +maybe_replace($/, Opts=#opts{escaped_strings=true}) -> + case Opts#opts.escaped_forward_slashes of + true -> [$/, $\\] + ; false -> [$/] + end; +maybe_replace($\\, #opts{escaped_strings=true}) -> [$\\, $\\]; +maybe_replace(X, Opts=#opts{escaped_strings=true}) when X == 16#2028; X == 16#2029 -> + case Opts#opts.unescaped_jsonp of + true -> [X] + ; false -> lists:reverse(jsx_utils:json_escape_sequence(X)) + end; +maybe_replace(X, #opts{escaped_strings=true}) when X < 32 -> + lists:reverse(jsx_utils:json_escape_sequence(X)); +maybe_replace(noncharacter, #opts{replaced_bad_utf8=true}) -> [16#fffd]; +maybe_replace(surrogate, #opts{replaced_bad_utf8=true}) -> [16#fffd]; +maybe_replace(badutf, #opts{replaced_bad_utf8=true}) -> [16#fffd]. -ifdef(TEST). @@ -263,7 +684,373 @@ encode_test_() -> end_json ] ) + }, + {"atom keys", ?_assertEqual( + encode([start_object, {key, key}, {string, <<"value">>}, end_object, end_json]), + [start_object, {key, <<"key">>}, {string, <<"value">>}, end_object, end_json] + )} + ]. + + +xcode(Bin) -> xcode(Bin, #opts{}). + +xcode(Bin, [replaced_bad_utf8]) -> xcode(Bin, #opts{replaced_bad_utf8=true}); +xcode(Bin, Opts) -> + try clean_string(Bin, Opts) + catch error:badarg -> {error, badarg} + end. + + +is_bad({error, badarg}) -> true; +is_bad(_) -> false. + + +bad_utf8_test_() -> + [ + {"orphan continuation byte u+0080", + ?_assert(is_bad(xcode(<<16#0080>>))) + }, + {"orphan continuation byte u+0080 replaced", + ?_assertEqual(xcode(<<16#0080>>, [replaced_bad_utf8]), <<16#fffd/utf8>>) + }, + {"orphan continuation byte u+00bf", + ?_assert(is_bad(xcode(<<16#00bf>>))) + }, + {"orphan continuation byte u+00bf replaced", + ?_assertEqual(xcode(<<16#00bf>>, [replaced_bad_utf8]), <<16#fffd/utf8>>) + }, + {"2 continuation bytes", + ?_assert(is_bad(xcode(<<(binary:copy(<<16#0080>>, 2))/binary>>))) + }, + {"2 continuation bytes replaced", + ?_assertEqual( + xcode(<<(binary:copy(<<16#0080>>, 2))/binary>>, [replaced_bad_utf8]), + binary:copy(<<16#fffd/utf8>>, 2) + ) + }, + {"3 continuation bytes", + ?_assert(is_bad(xcode(<<(binary:copy(<<16#0080>>, 3))/binary>>))) + }, + {"3 continuation bytes replaced", + ?_assertEqual( + xcode(<<(binary:copy(<<16#0080>>, 3))/binary>>, [replaced_bad_utf8]), + binary:copy(<<16#fffd/utf8>>, 3) + ) + }, + {"4 continuation bytes", + ?_assert(is_bad(xcode(<<(binary:copy(<<16#0080>>, 4))/binary>>))) + }, + {"4 continuation bytes replaced", + ?_assertEqual( + xcode(<<(binary:copy(<<16#0080>>, 4))/binary>>, [replaced_bad_utf8]), + binary:copy(<<16#fffd/utf8>>, 4) + ) + }, + {"5 continuation bytes", + ?_assert(is_bad(xcode(<<(binary:copy(<<16#0080>>, 5))/binary>>))) + }, + {"5 continuation bytes replaced", + ?_assertEqual( + xcode(<<(binary:copy(<<16#0080>>, 5))/binary>>, [replaced_bad_utf8]), + binary:copy(<<16#fffd/utf8>>, 5) + ) + }, + {"6 continuation bytes", + ?_assert(is_bad(xcode(<<(binary:copy(<<16#0080>>, 6))/binary>>))) + }, + {"6 continuation bytes replaced", + ?_assertEqual( + xcode(<<(binary:copy(<<16#0080>>, 6))/binary>>, [replaced_bad_utf8]), + binary:copy(<<16#fffd/utf8>>, 6) + ) + }, + {"all continuation bytes", + ?_assert(is_bad(xcode(<<(list_to_binary(lists:seq(16#0080, 16#00bf)))/binary>>))) + }, + {"all continuation bytes replaced", + ?_assertEqual( + xcode(<<(list_to_binary(lists:seq(16#0080, 16#00bf)))/binary>>, [replaced_bad_utf8]), + binary:copy(<<16#fffd/utf8>>, length(lists:seq(16#0080, 16#00bf))) + ) + }, + {"lonely start byte", + ?_assert(is_bad(xcode(<<16#00c0>>))) + }, + {"lonely start byte replaced", + ?_assertEqual( + xcode(<<16#00c0>>, [replaced_bad_utf8]), + <<16#fffd/utf8>> + ) + }, + {"lonely start bytes (2 byte)", + ?_assert(is_bad(xcode(<<16#00c0, 32, 16#00df>>))) + }, + {"lonely start bytes (2 byte) replaced", + ?_assertEqual( + xcode(<<16#00c0, 32, 16#00df>>, [replaced_bad_utf8]), + <<16#fffd/utf8, 32, 16#fffd/utf8>> + ) + }, + {"lonely start bytes (3 byte)", + ?_assert(is_bad(xcode(<<16#00e0, 32, 16#00ef>>))) + }, + {"lonely start bytes (3 byte) replaced", + ?_assertEqual( + xcode(<<16#00e0, 32, 16#00ef>>, [replaced_bad_utf8]), + <<16#fffd/utf8, 32, 16#fffd/utf8>> + ) + }, + {"lonely start bytes (4 byte)", + ?_assert(is_bad(xcode(<<16#00f0, 32, 16#00f7>>))) + }, + {"lonely start bytes (4 byte) replaced", + ?_assertEqual( + xcode(<<16#00f0, 32, 16#00f7>>, [replaced_bad_utf8]), + <<16#fffd/utf8, 32, 16#fffd/utf8>> + ) + }, + {"missing continuation byte (3 byte)", + ?_assert(is_bad(xcode(<<224, 160, 32>>))) + }, + {"missing continuation byte (3 byte) replaced", + ?_assertEqual( + xcode(<<224, 160, 32>>, [replaced_bad_utf8]), + <<16#fffd/utf8, 32>> + ) + }, + {"missing continuation byte (4 byte missing one)", + ?_assert(is_bad(xcode(<<240, 144, 128, 32>>))) + }, + {"missing continuation byte (4 byte missing one) replaced", + ?_assertEqual( + xcode(<<240, 144, 128, 32>>, [replaced_bad_utf8]), + <<16#fffd/utf8, 32>> + ) + }, + {"missing continuation byte (4 byte missing two)", + ?_assert(is_bad(xcode(<<240, 144, 32>>))) + }, + {"missing continuation byte (4 byte missing two) replaced", + ?_assertEqual( + xcode(<<240, 144, 32>>, [replaced_bad_utf8]), + <<16#fffd/utf8, 32>> + ) + }, + {"overlong encoding of u+002f (2 byte)", + ?_assert(is_bad(xcode(<<16#c0, 16#af, 32>>))) + }, + {"overlong encoding of u+002f (2 byte) replaced", + ?_assertEqual( + xcode(<<16#c0, 16#af, 32>>, [replaced_bad_utf8]), + <<16#fffd/utf8, 32>> + ) + }, + {"overlong encoding of u+002f (3 byte)", + ?_assert(is_bad(xcode(<<16#e0, 16#80, 16#af, 32>>))) + }, + {"overlong encoding of u+002f (3 byte) replaced", + ?_assertEqual( + xcode(<<16#e0, 16#80, 16#af, 32>>, [replaced_bad_utf8]), + <<16#fffd/utf8, 32>> + ) + }, + {"overlong encoding of u+002f (4 byte)", + ?_assert(is_bad(xcode(<<16#f0, 16#80, 16#80, 16#af, 32>>))) + }, + {"overlong encoding of u+002f (4 byte) replaced", + ?_assertEqual( + xcode(<<16#f0, 16#80, 16#80, 16#af, 32>>, [replaced_bad_utf8]), + <<16#fffd/utf8, 32>> + ) + }, + {"highest overlong 2 byte sequence", + ?_assert(is_bad(xcode(<<16#c1, 16#bf, 32>>))) + }, + {"highest overlong 2 byte sequence replaced", + ?_assertEqual( + xcode(<<16#c1, 16#bf, 32>>, [replaced_bad_utf8]), + <<16#fffd/utf8, 32>> + ) + }, + {"highest overlong 3 byte sequence", + ?_assert(is_bad(xcode(<<16#e0, 16#9f, 16#bf, 32>>))) + }, + {"highest overlong 3 byte sequence replaced", + ?_assertEqual( + xcode(<<16#e0, 16#9f, 16#bf, 32>>, [replaced_bad_utf8]), + <<16#fffd/utf8, 32>> + ) + }, + {"highest overlong 4 byte sequence", + ?_assert(is_bad(xcode(<<16#f0, 16#8f, 16#bf, 16#bf, 32>>))) + }, + {"highest overlong 4 byte sequence replaced", + ?_assertEqual( + xcode(<<16#f0, 16#8f, 16#bf, 16#bf, 32>>, [replaced_bad_utf8]), + <<16#fffd/utf8, 32>> + ) } ]. + +escapes_test_() -> + [ + {"backspace escape", ?_assertEqual(encode(<<"\b">>, [escaped_strings]), [{string, <<"\\b">>}, end_json])}, + {"formfeed escape", ?_assertEqual(encode(<<"\f">>, [escaped_strings]), [{string, <<"\\f">>}, end_json])}, + {"newline escape", ?_assertEqual(encode(<<"\n">>, [escaped_strings]), [{string, <<"\\n">>}, end_json])}, + {"carriage return escape", ?_assertEqual(encode(<<"\r">>, [escaped_strings]), [{string, <<"\\r">>}, end_json])}, + {"tab escape", ?_assertEqual(encode(<<"\t">>, [escaped_strings]), [{string, <<"\\t">>}, end_json])}, + {"quote escape", ?_assertEqual(encode(<<"\"">>, [escaped_strings]), [{string, <<"\\\"">>}, end_json])}, + {"single quote escape", ?_assertEqual(encode(<<"'">>, [escaped_strings, single_quoted_strings]), [{string, <<"\\'">>}, end_json])}, + {"no single quote escape", ?_assertEqual(encode(<<"'">>, [escaped_strings]), [{string, <<"'">>}, end_json])}, + {"forward slash escape", ?_assertEqual(encode(<<"/">>, [escaped_strings, escaped_forward_slashes]), [{string, <<"\\/">>}, end_json])}, + {"no forward slash escape", ?_assertEqual(encode(<<"/">>, [escaped_strings]), [{string, <<"/">>}, end_json])}, + {"back slash escape", ?_assertEqual(encode(<<"\\">>, [escaped_strings]), [{string, <<"\\\\">>}, end_json])}, + {"jsonp escape", ?_assertEqual( + encode(<<16#2028/utf8, 16#2029/utf8>>, [escaped_strings]), + [{string, <<"\\u2028\\u2029">>}, end_json] + )}, + {"no jsonp escape", ?_assertEqual( + encode(<<16#2028/utf8, 16#2029/utf8>>, [escaped_strings, unescaped_jsonp]), + [{string, <<16#2028/utf8, 16#2029/utf8>>}, end_json] + )}, + {"control escape", ?_assertEqual(encode(<<0>>, [escaped_strings]), [{string, <<"\\u0000">>}, end_json])}, + {"dirty strings", ?_assertEqual(encode(<<"\n">>, [escaped_strings, dirty_strings]), [{string, <<"\n">>}, end_json])}, + {"ignore bad escapes", ?_assertEqual(encode(<<"\\x25">>, [escaped_strings, ignored_bad_escapes]), [{string, <<"\\\\x25">>}, end_json])} + ]. + + +surrogates_test_() -> + [ + {"surrogates - badjson", + ?_assert(check_bad(surrogates())) + }, + {"surrogates - replaced", + ?_assert(check_replaced(surrogates())) + } + ]. + + +good_characters_test_() -> + [ + {"acceptable codepoints", + ?_assert(check_good(good())) + }, + {"acceptable codepoints - escaped_strings", + ?_assert(check_good(good(), [escaped_strings])) + }, + {"acceptable codepoints - replaced_bad_utf8", + ?_assert(check_good(good(), [escaped_strings])) + }, + {"acceptable codepoints - escaped_strings + replaced_bad_utf8", + ?_assert(check_good(good(), [escaped_strings, replaced_bad_utf8])) + }, + {"acceptable extended", + ?_assert(check_good(good_extended())) + }, + {"acceptable extended - escaped_strings", + ?_assert(check_good(good_extended(), [escaped_strings])) + }, + {"acceptable extended - escaped_strings", + ?_assert(check_good(good_extended(), [replaced_bad_utf8])) + } + ]. + + +reserved_test_() -> + [ + {"reserved noncharacters - badjson", + ?_assert(check_bad(reserved_space())) + }, + {"reserved noncharacters - replaced", + ?_assert(check_replaced(reserved_space())) + } + ]. + + +noncharacters_test_() -> + [ + {"noncharacters - badjson", + ?_assert(check_bad(noncharacters())) + }, + {"noncharacters - replaced", + ?_assert(check_replaced(noncharacters())) + } + ]. + + +extended_noncharacters_test_() -> + [ + {"extended noncharacters - badjson", + ?_assert(check_bad(extended_noncharacters())) + }, + {"extended noncharacters - replaced", + ?_assert(check_replaced(extended_noncharacters())) + } + ]. + + +check_bad(List) -> + [] == lists:dropwhile(fun({_, {error, badjson}}) -> true ; (_) -> false end, + check(List, [], []) + ). + + +check_replaced(List) -> + [] == lists:dropwhile(fun({_, [{string, <<16#fffd/utf8>>}|_]}) -> true ; (_) -> false + end, + check(List, [replaced_bad_utf8], []) + ). + + +check_good(List) -> check_good(List, []). + +check_good(List, Opts) -> + [] == lists:dropwhile(fun({_, [{string, _}|_]}) -> true ; (_) -> false end, + check(List, Opts, []) + ). + + +check([], _Opts, Acc) -> Acc; +check([H|T], Opts, Acc) -> + R = encode(to_fake_utf(H, utf8), Opts), + check(T, Opts, [{H, R}] ++ Acc). + + +noncharacters() -> lists:seq(16#fffe, 16#ffff). + +extended_noncharacters() -> + [16#1fffe, 16#1ffff, 16#2fffe, 16#2ffff] + ++ [16#3fffe, 16#3ffff, 16#4fffe, 16#4ffff] + ++ [16#5fffe, 16#5ffff, 16#6fffe, 16#6ffff] + ++ [16#7fffe, 16#7ffff, 16#8fffe, 16#8ffff] + ++ [16#9fffe, 16#9ffff, 16#afffe, 16#affff] + ++ [16#bfffe, 16#bffff, 16#cfffe, 16#cffff] + ++ [16#dfffe, 16#dffff, 16#efffe, 16#effff] + ++ [16#ffffe, 16#fffff, 16#10fffe, 16#10ffff]. + +surrogates() -> lists:seq(16#d800, 16#dfff). + +reserved_space() -> lists:seq(16#fdd0, 16#fdef). + +good() -> lists:seq(16#0000, 16#d7ff) ++ lists:seq(16#e000, 16#fdcf) ++ lists:seq(16#fdf0, 16#fffd). + +good_extended() -> [16#10000, 16#20000, 16#30000, 16#40000, 16#50000, + 16#60000, 16#70000, 16#80000, 16#90000, 16#a0000, + 16#b0000, 16#c0000, 16#d0000, 16#e0000, 16#f0000 + ] ++ lists:seq(16#100000, 16#10fffd). + + +%% erlang refuses to encode certain codepoints, so fake them all +to_fake_utf(N, utf8) when N < 16#0080 -> <>; +to_fake_utf(N, utf8) when N < 16#0800 -> + <<0:5, Y:5, X:6>> = <>, + <<2#110:3, Y:5, 2#10:2, X:6>>; +to_fake_utf(N, utf8) when N < 16#10000 -> + <> = <>, + <<2#1110:4, Z:4, 2#10:2, Y:6, 2#10:2, X:6>>; +to_fake_utf(N, utf8) -> + <<0:3, W:3, Z:6, Y:6, X:6>> = <>, + <<2#11110:5, W:3, 2#10:2, Z:6, 2#10:2, Y:6, 2#10:2, X:6>>. + -endif. \ No newline at end of file