From b711bc9ef9298c6661548661e2478dc008fe2669 Mon Sep 17 00:00:00 2001 From: alisdair sullivan Date: Tue, 5 Feb 2013 00:03:58 -0800 Subject: [PATCH] factor out clean_string to jsx_utils --- src/jsx_encoder.erl | 591 +------------------------------------------ src/jsx_parser.erl | 588 +------------------------------------------ src/jsx_utils.erl | 595 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 597 insertions(+), 1177 deletions(-) diff --git a/src/jsx_encoder.erl b/src/jsx_encoder.erl index a748779..86a894e 100644 --- a/src/jsx_encoder.erl +++ b/src/jsx_encoder.erl @@ -128,603 +128,14 @@ 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{dirty_strings=true}) -> Bin; -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. +clean_string(Bin, Opts) -> jsx_utils:clean_string(Bin, Opts). -%% 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($\b, #opts{escaped_strings=true}) -> [$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]; -maybe_replace(_, _) -> erlang:error(badarg). - -ifdef(TEST). -include_lib("eunit/include/eunit.hrl"). -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>> - ) - } - ]. - - encode(Term) -> encode(Term, []). encode(Term, Opts) -> diff --git a/src/jsx_parser.erl b/src/jsx_parser.erl index 71df417..dc496ac 100644 --- a/src/jsx_parser.erl +++ b/src/jsx_parser.erl @@ -161,397 +161,9 @@ 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{dirty_strings=true}) -> Bin; -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. +clean_string(Bin, Opts) -> jsx_utils:clean_string(Bin, Opts). -%% 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($\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]; -maybe_replace(_, _) -> erlang:error(badarg). - -ifdef(TEST). -include_lib("eunit/include/eunit.hrl"). @@ -729,205 +341,7 @@ encode_failures_test_() -> ]. -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_() -> diff --git a/src/jsx_utils.erl b/src/jsx_utils.erl index 09d4d58..19be8f9 100644 --- a/src/jsx_utils.erl +++ b/src/jsx_utils.erl @@ -26,6 +26,7 @@ -export([parse_opts/1]). -export([extract_opts/1, valid_flags/0]). -export([json_escape_sequence/1]). +-export([clean_string/2]). -include("jsx_opts.hrl"). @@ -143,6 +144,399 @@ to_hex(15) -> $f; to_hex(X) -> X + 48. %% ascii "1" is [49], "2" is [50], etc... +clean_string(Bin, #opts{dirty_strings=true}) -> Bin; +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($\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]; +maybe_replace(_, _) -> erlang:error(badarg). + + + %% eunit tests -ifdef(TEST). -include_lib("eunit/include/eunit.hrl"). @@ -195,4 +589,205 @@ opts_test_() -> ]. +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>> + ) + } + ]. + + -endif. \ No newline at end of file