fixed embarassing non-termination bug
This commit is contained in:
alisdair sullivan
parent
bbc291c7c4
commit
0d7a6f9720
4 changed files with 862 additions and 91 deletions
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@ -25,16 +25,16 @@
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-author("alisdairsullivan@yahoo.ca").
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-export([pretty/2, jsx_event/2]).
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-export([pretty/2, prettify/2]).
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-record(opts, {
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indent = 4
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indent = " "
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}).
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pretty(JSON, Opts) ->
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Init = init(parse_opts(Opts, #opts{})),
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P = jsx:decoder({jsx_prettify, jsx_event, Init}, []),
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P = jsx:decoder({jsx_prettify, prettify, Init}, []),
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case P(JSON) of
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{incomplete, _} -> {error, badjson}
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; {error, badjson} -> {error, badjson}
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@ -43,7 +43,7 @@ pretty(JSON, Opts) ->
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parse_opts([{indent, Val}|Rest], Opts) ->
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parse_opts(Rest, Opts#opts{indent = Val});
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parse_opts(Rest, Opts#opts{indent = [ 16#20 || _ <- lists:seq(1, Val) ]});
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parse_opts([], Opts) ->
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Opts.
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@ -52,45 +52,45 @@ init(Opts) ->
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{[], Opts#opts.indent, 0, new}.
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jsx_event(start_object, {Acc, Indent, Level, value}) ->
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prettify(start_object, {Acc, Indent, Level, value}) ->
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{Acc ++ ",\n" ++ indent(Indent, Level) ++ "{", Indent, Level + 1, new};
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jsx_event(start_object, {Acc, Indent, Level, new}) ->
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prettify(start_object, {Acc, Indent, Level, new}) ->
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{Acc ++ ",\n" ++ indent(Indent, Level) ++ "{", Indent, Level + 1, new};
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jsx_event(start_object, {Acc, Indent, Level, _}) ->
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prettify(start_object, {Acc, Indent, Level, _}) ->
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{Acc ++ "{", Indent, Level + 1, new};
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jsx_event(start_array, {Acc, Indent, Level, value}) ->
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prettify(start_array, {Acc, Indent, Level, value}) ->
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{Acc ++ ",\n" ++ indent(Indent, Level) ++ "[", Indent, Level + 1, new};
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jsx_event(start_array, {Acc, Indent, Level, new}) ->
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prettify(start_array, {Acc, Indent, Level, new}) ->
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{Acc ++ ",\n" ++ indent(Indent, Level) ++ "[", Indent, Level + 1, new};
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jsx_event(start_array, {Acc, Indent, Level, _}) ->
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prettify(start_array, {Acc, Indent, Level, _}) ->
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{Acc ++ "[", Indent, Level + 1, new};
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jsx_event(end_object, {Acc, Indent, Level, value}) ->
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prettify(end_object, {Acc, Indent, Level, value}) ->
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{Acc ++ "\n" ++ indent(Indent, Level - 1) ++ "}", Indent, Level - 1, value};
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jsx_event(end_object, {Acc, Indent, Level, new}) ->
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prettify(end_object, {Acc, Indent, Level, new}) ->
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{Acc ++ "}", Indent, Level - 1, value};
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jsx_event(end_array, {Acc, Indent, Level, value}) ->
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prettify(end_array, {Acc, Indent, Level, value}) ->
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{Acc ++ "\n" ++ indent(Indent, Level - 1) ++ "]", Indent, Level - 1, value};
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jsx_event(end_array, {Acc, Indent, Level, new}) ->
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prettify(end_array, {Acc, Indent, Level, new}) ->
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{Acc ++ "]", Indent, Level - 1, value};
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jsx_event({key, Key}, {Acc, Indent, Level, value}) ->
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prettify({key, Key}, {Acc, Indent, Level, value}) ->
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{Acc ++ ",\n" ++ indent(Indent, Level) ++ "\"" ++ Key ++ "\": ", Indent, Level, key};
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jsx_event({key, Key}, {Acc, Indent, Level, _}) ->
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prettify({key, Key}, {Acc, Indent, Level, _}) ->
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{Acc ++ "\n" ++ indent(Indent, Level) ++ "\"" ++ Key ++ "\": ", Indent, Level, key};
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jsx_event({Type, Value}, {Acc, Indent, Level, value}) ->
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prettify({Type, Value}, {Acc, Indent, Level, value}) ->
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{Acc ++ ",\n" ++ indent(Indent, Level) ++ format(Type, Value), Indent, Level, value};
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jsx_event({Type, Value}, {Acc, Indent, Level, new}) ->
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prettify({Type, Value}, {Acc, Indent, Level, new}) ->
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{Acc ++ "\n" ++ indent(Indent, Level) ++ format(Type, Value), Indent, Level, value};
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jsx_event({Type, Value}, {Acc, Indent, Level, key}) ->
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prettify({Type, Value}, {Acc, Indent, Level, key}) ->
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{Acc ++ format(Type, Value), Indent, Level, value};
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jsx_event(reset, {_, Indent, _, _}) ->
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prettify(reset, {_, Indent, _, _}) ->
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{[], Indent, 0, new};
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jsx_event(end_of_json, {Acc, _, _, _}) ->
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prettify(end_of_json, {Acc, _, _, _}) ->
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Acc.
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@ -103,5 +103,10 @@ format(_, Number) ->
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indent(Indent, Level) ->
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[ 16#20 || _ <- lists:seq(1, Indent * Level) ].
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indent(Indent, Level, "").
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indent(Indent, 0, Acc) ->
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Acc;
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indent(Indent, N, Acc) ->
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Indent ++ Acc.
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18
src/jsx.erl
18
src/jsx.erl
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@ -27,7 +27,12 @@
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-export([decode/1, decoder/0, decoder/1, decoder/2, detect_encoding/4]).
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decode(JSON) ->
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(jsx:decoder())(JSON).
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F = decoder(),
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case F(JSON) of
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{incomplete, _} -> {error, badjson}
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; {error, badjson} -> {error, badjson}
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; {Result, _} -> {ok, Result}
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end.
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decoder() ->
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decoder([]).
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@ -45,7 +50,6 @@ decoder({Mod, Fun, State}, OptsList) when is_list(OptsList), is_atom(Mod), is_at
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start({fun(E, S) -> Mod:Fun(E, S) end, State}, OptsList).
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start(Callbacks, OptsList) ->
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Opts = parse_opts(OptsList),
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F = case proplists:get_value(encoding, OptsList, auto) of
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utf8 -> fun jsx_utf8:start/4
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; utf16 -> fun jsx_utf16:start/4
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@ -54,13 +58,11 @@ start(Callbacks, OptsList) ->
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; {utf32, little} -> fun jsx_utf32le:start/4
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; auto -> fun jsx:detect_encoding/4
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end,
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start(Callbacks, Opts, F).
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start(Callbacks, OptsList, F).
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start(Callbacks, Opts, F) ->
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fun(Stream) ->
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try F(Stream, [], Callbacks, Opts)
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catch error:badjson -> {error, badjson} end
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end.
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start(Callbacks, OptsList, F) ->
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Opts = parse_opts(OptsList),
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fun(Stream) -> F(Stream, [], Callbacks, Opts) end.
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parse_opts(Opts) ->
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parse_opts(Opts, {false, codepoint, false}).
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@ -72,8 +72,8 @@ start(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts) when ?is_nonzero(S)
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start(<<?solidus/?encoding, Rest/binary>>, Stack, Callbacks, ?comments_enabled(Opts)) ->
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maybe_comment(Rest, fun(Resume) -> start(Resume, Stack, Callbacks, Opts) end);
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start(Bin, Stack, Callbacks, Opts) ->
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case byte_size(Bin) of
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?symbol_size -> {error, badjson}
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case byte_size(Bin) >= ?symbol_size of
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true -> {error, badjson}
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; _ ->
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{incomplete,
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fun(Stream) -> start(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
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@ -100,8 +100,8 @@ maybe_done(Bin, [], Callbacks, ?stream_mode(Opts)) ->
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maybe_done(<<>>, [], Callbacks, Opts) ->
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{fold(end_of_json, Callbacks), fun(Stream) -> maybe_done(Stream, [], Callbacks, Opts) end};
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maybe_done(Bin, Stack, Callbacks, Opts) ->
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case byte_size(Bin) of
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?symbol_size -> {error, badjson}
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case byte_size(Bin) >= ?symbol_size of
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true -> {error, badjson}
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; _ ->
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{incomplete,
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fun(Stream) -> maybe_done(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
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@ -118,8 +118,8 @@ object(<<?end_object/?encoding, Rest/binary>>, [key|Stack], Callbacks, Opts) ->
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object(<<?solidus/?encoding, Rest/binary>>, Stack, Callbacks, ?comments_enabled(Opts)) ->
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maybe_comment(Rest, fun(Resume) -> object(Resume, Stack, Callbacks, Opts) end);
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object(Bin, Stack, Callbacks, Opts) ->
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case byte_size(Bin) of
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?symbol_size -> {error, badjson}
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case byte_size(Bin) >= ?symbol_size of
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true -> {error, badjson}
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; _ ->
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{incomplete,
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fun(Stream) -> object(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
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@ -152,8 +152,8 @@ array(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Callbacks, Opts) ->
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array(<<?solidus/?encoding, Rest/binary>>, Stack, Callbacks, ?comments_enabled(Opts)) ->
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maybe_comment(Rest, fun(Resume) -> array(Resume, Stack, Callbacks, Opts) end);
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array(Bin, Stack, Callbacks, Opts) ->
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case byte_size(Bin) of
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?symbol_size -> {error, badjson}
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case byte_size(Bin) >= ?symbol_size of
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true -> {error, badjson}
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; _ ->
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{incomplete,
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fun(Stream) -> array(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
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@ -184,8 +184,8 @@ value(<<?start_array/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
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value(<<?solidus/?encoding, Rest/binary>>, Stack, Callbacks, ?comments_enabled(Opts)) ->
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maybe_comment(Rest, fun(Resume) -> value(Resume, Stack, Callbacks, Opts) end);
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value(Bin, Stack, Callbacks, Opts) ->
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case byte_size(Bin) of
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?symbol_size -> {error, badjson}
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case byte_size(Bin) >= ?symbol_size of
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true -> {error, badjson}
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; _ ->
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{incomplete,
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fun(Stream) -> value(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
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@ -200,8 +200,8 @@ colon(<<?colon/?encoding, Rest/binary>>, [key|Stack], Callbacks, Opts) ->
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colon(<<?solidus/?encoding, Rest/binary>>, Stack, Callbacks, ?comments_enabled(Opts)) ->
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maybe_comment(Rest, fun(Resume) -> colon(Resume, Stack, Callbacks, Opts) end);
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colon(Bin, Stack, Callbacks, Opts) ->
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case byte_size(Bin) of
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?symbol_size -> {error, badjson}
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case byte_size(Bin) >= ?symbol_size of
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true -> {error, badjson}
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; _ ->
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{incomplete,
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fun(Stream) -> colon(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
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@ -216,8 +216,8 @@ key(<<?quote/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
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key(<<?solidus/?encoding, Rest/binary>>, Stack, Callbacks, ?comments_enabled(Opts)) ->
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maybe_comment(Rest, fun(Resume) -> key(Resume, Stack, Callbacks, Opts) end);
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key(Bin, Stack, Callbacks, Opts) ->
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case byte_size(Bin) of
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?symbol_size -> {error, badjson}
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case byte_size(Bin) >= ?symbol_size of
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true -> {error, badjson}
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; _ ->
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{incomplete,
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fun(Stream) -> key(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
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@ -317,8 +317,8 @@ escape(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc)
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when S =:= ?quote; S =:= ?solidus; S =:= ?rsolidus ->
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string(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
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escape(Bin, Stack, Callbacks, Opts, Acc) ->
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case byte_size(Bin) of
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?symbol_size -> {error, badjson}
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case byte_size(Bin) >= ?symbol_size of
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true -> {error, badjson}
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; _ ->
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{incomplete,
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fun(Stream) -> escape(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts, Acc) end
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@ -372,8 +372,8 @@ escaped_unicode(<<D/?encoding, Rest/binary>>, Stack, Callbacks, Opts, String, [C
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escaped_unicode(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts, String, Acc) when ?is_hex(S) ->
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escaped_unicode(Rest, Stack, Callbacks, Opts, String, [S] ++ Acc);
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escaped_unicode(Bin, Stack, Callbacks, Opts, String, Acc) ->
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case byte_size(Bin) of
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?symbol_size -> {error, badjson}
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case byte_size(Bin) >= ?symbol_size of
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true -> {error, badjson}
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; _ ->
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{incomplete,
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fun(Stream) -> escaped_unicode(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts, String, Acc) end
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@ -408,8 +408,8 @@ negative(<<$0/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
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negative(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
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integer(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
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negative(Bin, Stack, Callbacks, Opts, Acc) ->
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case byte_size(Bin) of
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?symbol_size -> {error, badjson}
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case byte_size(Bin) >= ?symbol_size of
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true -> {error, badjson}
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; _ ->
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{incomplete,
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fun(Stream) -> negative(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts, Acc) end
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@ -440,8 +440,8 @@ zero(<<>>, [], Callbacks, Opts, Acc) ->
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{fold(end_of_json, fold({integer, lists:reverse(Acc)}, Callbacks)),
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fun(Stream) -> zero(Stream, [], Callbacks, Opts, Acc) end};
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zero(Bin, Stack, Callbacks, Opts, Acc) ->
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case byte_size(Bin) of
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?symbol_size -> {error, badjson}
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case byte_size(Bin) >= ?symbol_size of
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true -> {error, badjson}
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; _ ->
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{incomplete,
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fun(Stream) -> zero(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts, Acc) end
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@ -480,8 +480,8 @@ integer(<<>>, [], Callbacks, Opts, Acc) ->
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{fold(end_of_json, fold({integer, lists:reverse(Acc)}, Callbacks)),
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fun(Stream) -> integer(Stream, [], Callbacks, Opts, Acc) end};
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integer(Bin, Stack, Callbacks, Opts, Acc) ->
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case byte_size(Bin) of
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?symbol_size -> {error, badjson}
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case byte_size(Bin) >= ?symbol_size of
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true -> {error, badjson}
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; _ ->
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{incomplete,
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fun(Stream) -> integer(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts, Acc) end
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@ -494,8 +494,8 @@ initial_decimal(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) when
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initial_decimal(<<?zero/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
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decimal(Rest, Stack, Callbacks, Opts, [?zero] ++ Acc);
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initial_decimal(Bin, Stack, Callbacks, Opts, Acc) ->
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case byte_size(Bin) of
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?symbol_size -> {error, badjson}
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case byte_size(Bin) >= ?symbol_size of
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true -> {error, badjson}
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; _ ->
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{incomplete,
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fun(Stream) -> initial_decimal(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts, Acc) end
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@ -532,8 +532,8 @@ decimal(<<>>, [], Callbacks, Opts, Acc) ->
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{fold(end_of_json, fold({float, lists:reverse(Acc)}, Callbacks)),
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fun(Stream) -> decimal(Stream, [], Callbacks, Opts, Acc) end};
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decimal(Bin, Stack, Callbacks, Opts, Acc) ->
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case byte_size(Bin) of
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?symbol_size -> {error, badjson}
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case byte_size(Bin) >= ?symbol_size of
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true -> {error, badjson}
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; _ ->
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{incomplete,
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fun(Stream) -> decimal(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts, Acc) end
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@ -546,8 +546,8 @@ e(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) when S =:= ?zero; ?
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e(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) when S =:= ?positive; S =:= ?negative ->
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ex(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
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e(Bin, Stack, Callbacks, Opts, Acc) ->
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case byte_size(Bin) of
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?symbol_size -> {error, badjson}
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case byte_size(Bin) >= ?symbol_size of
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true -> {error, badjson}
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; _ ->
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{incomplete,
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fun(Stream) -> e(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts, Acc) end
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@ -558,8 +558,8 @@ e(Bin, Stack, Callbacks, Opts, Acc) ->
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ex(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) when S =:= ?zero; ?is_nonzero(S) ->
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exp(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
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ex(Bin, Stack, Callbacks, Opts, Acc) ->
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case byte_size(Bin) of
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?symbol_size -> {error, badjson}
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case byte_size(Bin) >= ?symbol_size of
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true -> {error, badjson}
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; _ ->
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{incomplete,
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fun(Stream) -> ex(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts, Acc) end
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@ -592,8 +592,8 @@ exp(<<>>, [], Callbacks, Opts, Acc) ->
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{fold(end_of_json, fold({float, lists:reverse(Acc)}, Callbacks)),
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fun(Stream) -> exp(Stream, [], Callbacks, Opts, Acc) end};
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exp(Bin, Stack, Callbacks, Opts, Acc) ->
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case byte_size(Bin) of
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?symbol_size -> {error, badjson}
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case byte_size(Bin) >= ?symbol_size of
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true -> {error, badjson}
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; _ ->
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{incomplete,
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fun(Stream) -> exp(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts, Acc) end
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@ -604,8 +604,8 @@ exp(Bin, Stack, Callbacks, Opts, Acc) ->
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tr(<<$r/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
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tru(Rest, Stack, Callbacks, Opts);
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tr(Bin, Stack, Callbacks, Opts) ->
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case byte_size(Bin) of
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?symbol_size -> {error, badjson}
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case byte_size(Bin) >= ?symbol_size of
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true -> {error, badjson}
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; _ ->
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{incomplete,
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fun(Stream) -> tr(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
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@ -616,8 +616,8 @@ tr(Bin, Stack, Callbacks, Opts) ->
|
|||
tru(<<$u/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
true(Rest, Stack, Callbacks, Opts);
|
||||
tru(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) of
|
||||
?symbol_size -> {error, badjson}
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> tru(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
|
|
@ -628,8 +628,8 @@ tru(Bin, Stack, Callbacks, Opts) ->
|
|||
true(<<$e/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, fold({literal, true}, Callbacks), Opts);
|
||||
true(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) of
|
||||
?symbol_size -> {error, badjson}
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> true(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
|
|
@ -640,8 +640,8 @@ true(Bin, Stack, Callbacks, Opts) ->
|
|||
fa(<<$a/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fal(Rest, Stack, Callbacks, Opts);
|
||||
fa(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) of
|
||||
?symbol_size -> {error, badjson}
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> fa(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
|
|
@ -652,8 +652,8 @@ fa(Bin, Stack, Callbacks, Opts) ->
|
|||
fal(<<$l/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fals(Rest, Stack, Callbacks, Opts);
|
||||
fal(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) of
|
||||
?symbol_size -> {error, badjson}
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> fal(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
|
|
@ -664,8 +664,8 @@ fal(Bin, Stack, Callbacks, Opts) ->
|
|||
fals(<<$s/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
false(Rest, Stack, Callbacks, Opts);
|
||||
fals(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) of
|
||||
?symbol_size -> {error, badjson}
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> fals(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
|
|
@ -676,8 +676,8 @@ fals(Bin, Stack, Callbacks, Opts) ->
|
|||
false(<<$e/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, fold({literal, false}, Callbacks), Opts);
|
||||
false(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) of
|
||||
?symbol_size -> {error, badjson}
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> false(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
|
|
@ -688,8 +688,8 @@ false(Bin, Stack, Callbacks, Opts) ->
|
|||
nu(<<$u/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
nul(Rest, Stack, Callbacks, Opts);
|
||||
nu(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) of
|
||||
?symbol_size -> {error, badjson}
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> nu(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
|
|
@ -700,8 +700,8 @@ nu(Bin, Stack, Callbacks, Opts) ->
|
|||
nul(<<$l/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
null(Rest, Stack, Callbacks, Opts);
|
||||
nul(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) of
|
||||
?symbol_size -> {error, badjson}
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> nul(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
|
|
@ -712,8 +712,8 @@ nul(Bin, Stack, Callbacks, Opts) ->
|
|||
null(<<$l/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, fold({literal, null}, Callbacks), Opts);
|
||||
null(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) of
|
||||
?symbol_size -> {error, badjson}
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> null(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
|
|
@ -730,8 +730,8 @@ null(Bin, Stack, Callbacks, Opts) ->
|
|||
maybe_comment(<<?star/?encoding, Rest/binary>>, Resume) ->
|
||||
comment(Rest, Resume);
|
||||
maybe_comment(Bin, Resume) ->
|
||||
case byte_size(Bin) of
|
||||
?symbol_size -> {error, badjson}
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> maybe_comment(<<Bin/binary, Stream/binary>>, Resume) end
|
||||
|
|
@ -744,8 +744,8 @@ comment(<<?star/?encoding, Rest/binary>>, Resume) ->
|
|||
comment(<<_/?encoding, Rest/binary>>, Resume) ->
|
||||
comment(Rest, Resume);
|
||||
comment(Bin, Resume) ->
|
||||
case byte_size(Bin) of
|
||||
?symbol_size -> {error, badjson}
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete, fun(Stream) -> comment(<<Bin/binary, Stream/binary>>, Resume) end}
|
||||
end.
|
||||
|
|
@ -756,8 +756,8 @@ maybe_comment_done(<<?solidus/?encoding, Rest/binary>>, Resume) ->
|
|||
maybe_comment_done(<<_/?encoding, Rest/binary>>, Resume) ->
|
||||
comment(Rest, Resume);
|
||||
maybe_comment_done(Bin, Resume) ->
|
||||
case byte_size(Bin) of
|
||||
?symbol_size -> {error, badjson}
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete, fun(Stream) -> maybe_comment_done(<<Bin/binary, Stream/binary>>, Resume) end}
|
||||
end.
|
||||
764
src/jsx_utf8.erl
Normal file
764
src/jsx_utf8.erl
Normal file
|
|
@ -0,0 +1,764 @@
|
|||
%% The MIT License
|
||||
|
||||
%% Copyright (c) 2010 Alisdair Sullivan <alisdairsullivan@yahoo.ca>
|
||||
|
||||
%% Permission is hereby granted, free of charge, to any person obtaining a copy
|
||||
%% of this software and associated documentation files (the "Software"), to deal
|
||||
%% in the Software without restriction, including without limitation the rights
|
||||
%% to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||||
%% copies of the Software, and to permit persons to whom the Software is
|
||||
%% furnished to do so, subject to the following conditions:
|
||||
|
||||
%% The above copyright notice and this permission notice shall be included in
|
||||
%% all copies or substantial portions of the Software.
|
||||
|
||||
%% THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||||
%% IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||||
%% FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||||
%% AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||||
%% LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||||
%% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||||
%% THE SOFTWARE.
|
||||
|
||||
|
||||
%% this is a template for the utf8, utf16, utf16le, utf32 and utf32le decoders. it should
|
||||
%% not be compiled directly, see the build script in /priv for details
|
||||
|
||||
-module(jsx_utf8).
|
||||
-author("alisdairsullivan@yahoo.ca").
|
||||
|
||||
-define(utf8, true).
|
||||
-include("jsx_decoder.hrl").
|
||||
|
||||
-export([start/4]).
|
||||
|
||||
|
||||
%% callbacks to our handler are roughly equivalent to a fold over the events, incremental
|
||||
%% rather than all at once.
|
||||
|
||||
fold(end_of_json, {F, State}) ->
|
||||
F(end_of_json, State);
|
||||
fold(Event, {F, State}) when is_function(F) ->
|
||||
{F, F(Event, State)}.
|
||||
|
||||
|
||||
%% this code is mostly autogenerated and mostly ugly. apologies. for more insight on
|
||||
%% Callbacks or Opts, see the comments accompanying decoder/2 (in jsx.erl). Stack
|
||||
%% is a stack of flags used to track depth and to keep track of whether we are
|
||||
%% returning from a value or a key inside objects. all pops, peeks and pushes are
|
||||
%% inlined. the code that handles naked values and comments is not optimized by the
|
||||
%% compiler for efficient matching, but you shouldn't be using naked values or comments
|
||||
%% anyways, they are horrible and contrary to the spec.
|
||||
|
||||
start(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
start(Rest, Stack, Callbacks, Opts);
|
||||
start(<<?start_object/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
object(Rest, [key|Stack], fold(start_object, Callbacks), Opts);
|
||||
start(<<?start_array/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
array(Rest, [array|Stack], fold(start_array, Callbacks), Opts);
|
||||
start(<<?quote/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
start(<<$t/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
tr(Rest, Stack, Callbacks, Opts);
|
||||
start(<<$f/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fa(Rest, Stack, Callbacks, Opts);
|
||||
start(<<$n/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
nu(Rest, Stack, Callbacks, Opts);
|
||||
start(<<?negative/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
negative(Rest, Stack, Callbacks, Opts, "-");
|
||||
start(<<?zero/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0");
|
||||
start(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S]);
|
||||
start(<<?solidus/?encoding, Rest/binary>>, Stack, Callbacks, ?comments_enabled(Opts)) ->
|
||||
maybe_comment(Rest, fun(Resume) -> start(Resume, Stack, Callbacks, Opts) end);
|
||||
start(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> start(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
maybe_done(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, Callbacks, Opts);
|
||||
maybe_done(<<?end_object/?encoding, Rest/binary>>, [object|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, fold(end_object, Callbacks), Opts);
|
||||
maybe_done(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, fold(end_array, Callbacks), Opts);
|
||||
maybe_done(<<?comma/?encoding, Rest/binary>>, [object|Stack], Callbacks, Opts) ->
|
||||
key(Rest, [key|Stack], Callbacks, Opts);
|
||||
maybe_done(<<?comma/?encoding, Rest/binary>>, [array|_] = Stack, Callbacks, Opts) ->
|
||||
value(Rest, Stack, Callbacks, Opts);
|
||||
maybe_done(<<?solidus/?encoding, Rest/binary>>, Stack, Callbacks, ?comments_enabled(Opts)) ->
|
||||
maybe_comment(Rest, fun(Resume) -> maybe_done(Resume, Stack, Callbacks, Opts) end);
|
||||
maybe_done(Bin, [], Callbacks, ?stream_mode(Opts)) ->
|
||||
{fold(end_of_json, Callbacks), fun(Stream) ->
|
||||
start(<<Bin/binary, Stream/binary>>, [], fold(reset, Callbacks), Opts)
|
||||
end};
|
||||
maybe_done(<<>>, [], Callbacks, Opts) ->
|
||||
{fold(end_of_json, Callbacks), fun(Stream) -> maybe_done(Stream, [], Callbacks, Opts) end};
|
||||
maybe_done(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> maybe_done(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
object(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
object(Rest, Stack, Callbacks, Opts);
|
||||
object(<<?quote/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
object(<<?end_object/?encoding, Rest/binary>>, [key|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, fold(end_object, Callbacks), Opts);
|
||||
object(<<?solidus/?encoding, Rest/binary>>, Stack, Callbacks, ?comments_enabled(Opts)) ->
|
||||
maybe_comment(Rest, fun(Resume) -> object(Resume, Stack, Callbacks, Opts) end);
|
||||
object(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> object(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
array(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
array(Rest, Stack, Callbacks, Opts);
|
||||
array(<<?quote/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
array(<<$t/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
tr(Rest, Stack, Callbacks, Opts);
|
||||
array(<<$f/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fa(Rest, Stack, Callbacks, Opts);
|
||||
array(<<$n/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
nu(Rest, Stack, Callbacks, Opts);
|
||||
array(<<?negative/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
negative(Rest, Stack, Callbacks, Opts, "-");
|
||||
array(<<?zero/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0");
|
||||
array(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S]);
|
||||
array(<<?start_object/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
object(Rest, [key|Stack], fold(start_object, Callbacks), Opts);
|
||||
array(<<?start_array/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
array(Rest, [array|Stack], fold(start_array, Callbacks), Opts);
|
||||
array(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, fold(end_array, Callbacks), Opts);
|
||||
array(<<?solidus/?encoding, Rest/binary>>, Stack, Callbacks, ?comments_enabled(Opts)) ->
|
||||
maybe_comment(Rest, fun(Resume) -> array(Resume, Stack, Callbacks, Opts) end);
|
||||
array(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> array(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
value(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
value(Rest, Stack, Callbacks, Opts);
|
||||
value(<<?quote/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
value(<<$t/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
tr(Rest, Stack, Callbacks, Opts);
|
||||
value(<<$f/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fa(Rest, Stack, Callbacks, Opts);
|
||||
value(<<$n/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
nu(Rest, Stack, Callbacks, Opts);
|
||||
value(<<?negative/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
negative(Rest, Stack, Callbacks, Opts, "-");
|
||||
value(<<?zero/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0");
|
||||
value(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S]);
|
||||
value(<<?start_object/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
object(Rest, [key|Stack], fold(start_object, Callbacks), Opts);
|
||||
value(<<?start_array/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
array(Rest, [array|Stack], fold(start_array, Callbacks), Opts);
|
||||
value(<<?solidus/?encoding, Rest/binary>>, Stack, Callbacks, ?comments_enabled(Opts)) ->
|
||||
maybe_comment(Rest, fun(Resume) -> value(Resume, Stack, Callbacks, Opts) end);
|
||||
value(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> value(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
colon(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
colon(Rest, Stack, Callbacks, Opts);
|
||||
colon(<<?colon/?encoding, Rest/binary>>, [key|Stack], Callbacks, Opts) ->
|
||||
value(Rest, [object|Stack], Callbacks, Opts);
|
||||
colon(<<?solidus/?encoding, Rest/binary>>, Stack, Callbacks, ?comments_enabled(Opts)) ->
|
||||
maybe_comment(Rest, fun(Resume) -> colon(Resume, Stack, Callbacks, Opts) end);
|
||||
colon(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> colon(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
key(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
key(Rest, Stack, Callbacks, Opts);
|
||||
key(<<?quote/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
key(<<?solidus/?encoding, Rest/binary>>, Stack, Callbacks, ?comments_enabled(Opts)) ->
|
||||
maybe_comment(Rest, fun(Resume) -> key(Resume, Stack, Callbacks, Opts) end);
|
||||
key(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> key(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
%% string has an additional parameter, an accumulator (Acc) used to hold the intermediate
|
||||
%% representation of the string being parsed. using a list of integers representing
|
||||
%% unicode codepoints is faster than constructing binaries, many of which will be
|
||||
%% converted back to lists by the user anyways.
|
||||
|
||||
string(<<?quote/?encoding, Rest/binary>>, [key|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
colon(Rest, Stack, fold({key, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
string(<<?quote/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, fold({string, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
string(<<?rsolidus/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
escape(Rest, Stack, Callbacks, Opts, Acc);
|
||||
string(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_noncontrol(S) ->
|
||||
string(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
string(Bin, Stack, Callbacks, Opts, Acc) ->
|
||||
case partial_utf(Bin) of
|
||||
true ->
|
||||
{incomplete,
|
||||
fun(Stream) -> string(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts, Acc) end
|
||||
}
|
||||
; false ->
|
||||
{error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
-ifdef(utf8).
|
||||
partial_utf(<<>>) -> true;
|
||||
partial_utf(<<X>>) when X >= 16#c2, X =< 16#df -> true;
|
||||
partial_utf(<<X, Rest/binary>>) when X >= 16#e0, X =< 16#ef ->
|
||||
case Rest of
|
||||
<<>> -> true
|
||||
; <<Y>> when Y >= 16#80, Y =< 16#bf -> true
|
||||
end;
|
||||
partial_utf(<<X, Rest/binary>>) when X >= 16#f0, X =< 16#f4 ->
|
||||
case Rest of
|
||||
<<>> -> true
|
||||
; <<Y>> when Y >= 16#80, Y =< 16#bf -> true
|
||||
; <<Y, Z>> when Y >= 16#80, Y =< 16#bf, Z >= 16#80, Z =< 16#bf -> true
|
||||
end;
|
||||
partial_utf(_) -> false.
|
||||
-endif.
|
||||
|
||||
-ifdef(utf16).
|
||||
partial_utf(<<>>) -> true;
|
||||
%% this case is not strictly true, there are single bytes that should be rejected, but
|
||||
%% they're rare enough they can be ignored
|
||||
partial_utf(<<_X>>) -> true;
|
||||
partial_utf(<<X, _Y>>) when X >= 16#d8, X =< 16#df -> true;
|
||||
partial_utf(<<X, _Y, Z>>) when X >= 16#d8, X =< 16#df, Z >= 16#dc, Z =< 16#df -> true;
|
||||
partial_utf(_) -> false.
|
||||
-endif.
|
||||
|
||||
-ifdef(utf16le).
|
||||
partial_utf(<<>>) -> true;
|
||||
%% this case is not strictly true, there are single bytes that should be rejected, but
|
||||
%% they're rare enough they can be ignored
|
||||
partial_utf(<<_X>>) -> true;
|
||||
partial_utf(<<_Y, X>>) when X >= 16#d8, X =< 16#df -> true;
|
||||
partial_utf(<<_Y, X, _Z>>) when X >= 16#d8, X =< 16#df -> true;
|
||||
partial_utf(_) -> false.
|
||||
-endif.
|
||||
|
||||
-ifdef(utf32).
|
||||
partial_utf(<<_:32>>) -> false;
|
||||
partial_utf(_) -> true.
|
||||
-endif.
|
||||
|
||||
-ifdef(utf32le).
|
||||
partial_utf(<<_:32>>) -> false;
|
||||
partial_utf(_) -> true.
|
||||
-endif.
|
||||
|
||||
|
||||
%% only thing to note here is the additional accumulator passed to escaped_unicode used
|
||||
%% to hold the codepoint sequence. unescessary, but nicer than using the string
|
||||
%% accumulator.
|
||||
|
||||
escape(<<$b/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\b" ++ Acc);
|
||||
escape(<<$f/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\f" ++ Acc);
|
||||
escape(<<$n/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\n" ++ Acc);
|
||||
escape(<<$r/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\r" ++ Acc);
|
||||
escape(<<$t/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\t" ++ Acc);
|
||||
escape(<<$u/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
escaped_unicode(Rest, Stack, Callbacks, Opts, Acc, []);
|
||||
escape(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc)
|
||||
when S =:= ?quote; S =:= ?solidus; S =:= ?rsolidus ->
|
||||
string(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
escape(Bin, Stack, Callbacks, Opts, Acc) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> escape(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts, Acc) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
%% this code is ugly and unfortunate, but so is json's handling of escaped unicode
|
||||
%% codepoint sequences. if the ascii option is present, the sequence is converted
|
||||
%% to a codepoint and inserted into the string if it represents an ascii value. if
|
||||
%% the codepoint option is present the sequence is converted and inserted as long
|
||||
%% as it represents a valid unicode codepoint. this means non-characters
|
||||
%% representable in 16 bits are not converted (the utf16 surrogates and the two
|
||||
%% special non-characters). any other option and no conversion is done.
|
||||
|
||||
escaped_unicode(<<D/?encoding, Rest/binary>>,
|
||||
Stack,
|
||||
Callbacks,
|
||||
?escaped_unicode_to_ascii(Opts),
|
||||
String,
|
||||
[C, B, A])
|
||||
when ?is_hex(D) ->
|
||||
case erlang:list_to_integer([A, B, C, D], 16) of
|
||||
X when X < 128 ->
|
||||
string(Rest, Stack, Callbacks, Opts, [X] ++ String)
|
||||
; _ ->
|
||||
string(Rest, Stack, Callbacks, Opts, [D, C, B, A, $u, ?rsolidus] ++ String)
|
||||
end;
|
||||
escaped_unicode(<<D/?encoding, Rest/binary>>,
|
||||
Stack,
|
||||
Callbacks,
|
||||
?escaped_unicode_to_codepoint(Opts),
|
||||
String,
|
||||
[C, B, A])
|
||||
when ?is_hex(D) ->
|
||||
case erlang:list_to_integer([A, B, C, D], 16) of
|
||||
X when X >= 16#dc00, X =< 16#dfff ->
|
||||
case check_acc_for_surrogate(String) of
|
||||
false ->
|
||||
string(Rest, Stack, Callbacks, Opts, [D, C, B, A, $u, ?rsolidus] ++ String)
|
||||
; {Y, NewString} ->
|
||||
string(Rest, Stack, Callbacks, Opts, [surrogate_to_codepoint(Y, X)] ++ NewString)
|
||||
end
|
||||
; X when X < 16#d800; X > 16#dfff, X < 16#fffe ->
|
||||
string(Rest, Stack, Callbacks, Opts, [X] ++ String)
|
||||
; _ ->
|
||||
string(Rest, Stack, Callbacks, Opts, [D, C, B, A, $u, ?rsolidus] ++ String)
|
||||
end;
|
||||
escaped_unicode(<<D/?encoding, Rest/binary>>, Stack, Callbacks, Opts, String, [C, B, A]) when ?is_hex(D) ->
|
||||
string(Rest, Stack, Callbacks, Opts, [D, C, B, A, $u, ?rsolidus] ++ String);
|
||||
escaped_unicode(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts, String, Acc) when ?is_hex(S) ->
|
||||
escaped_unicode(Rest, Stack, Callbacks, Opts, String, [S] ++ Acc);
|
||||
escaped_unicode(Bin, Stack, Callbacks, Opts, String, Acc) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> escaped_unicode(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts, String, Acc) end
|
||||
}
|
||||
end.
|
||||
|
||||
%% upon encountering a low pair json/hex encoded value, check to see if there's a high
|
||||
%% value already in the accumulator.
|
||||
|
||||
check_acc_for_surrogate([D, C, B, A, $u, ?rsolidus|Rest])
|
||||
when ?is_hex(D), ?is_hex(C), ?is_hex(B), ?is_hex(A) ->
|
||||
case erlang:list_to_integer([A, B, C, D], 16) of
|
||||
X when X >=16#d800, X =< 16#dbff ->
|
||||
{X, Rest};
|
||||
_ ->
|
||||
false
|
||||
end;
|
||||
check_acc_for_surrogate(_) ->
|
||||
false.
|
||||
|
||||
%% stole this from the unicode spec
|
||||
|
||||
surrogate_to_codepoint(High, Low) ->
|
||||
(High - 16#d800) * 16#400 + (Low - 16#dc00) + 16#10000.
|
||||
|
||||
|
||||
%% like strings, numbers are collected in an intermediate accumulator before
|
||||
%% being emitted to the callback handler.
|
||||
|
||||
negative(<<$0/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0" ++ Acc);
|
||||
negative(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
negative(Bin, Stack, Callbacks, Opts, Acc) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> negative(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts, Acc) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
zero(<<?end_object/?encoding, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, fold(end_object, fold({integer, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
zero(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, fold(end_array, fold({integer, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
zero(<<?comma/?encoding, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], fold({integer, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
zero(<<?comma/?encoding, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, fold({integer, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
zero(<<?decimalpoint/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
initial_decimal(Rest, Stack, Callbacks, Opts, [?decimalpoint] ++ Acc);
|
||||
zero(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, fold({integer, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
zero(<<?solidus/?encoding, Rest/binary>>, Stack, Callbacks, ?comments_enabled(Opts), Acc) ->
|
||||
maybe_comment(Rest, fun(Resume) -> zero(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
zero(Bin, [], Callbacks, ?stream_mode(Opts), Acc) ->
|
||||
CB = fold({integer, lists:reverse(Acc)}, Callbacks),
|
||||
{fold(end_of_json, CB), fun(Stream) ->
|
||||
start(<<Bin/binary, Stream/binary>>, [], fold(reset, CB), Opts)
|
||||
end};
|
||||
zero(<<>>, [], Callbacks, Opts, Acc) ->
|
||||
{fold(end_of_json, fold({integer, lists:reverse(Acc)}, Callbacks)),
|
||||
fun(Stream) -> zero(Stream, [], Callbacks, Opts, Acc) end};
|
||||
zero(Bin, Stack, Callbacks, Opts, Acc) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> zero(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts, Acc) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
integer(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
integer(<<?end_object/?encoding, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, fold(end_object, fold({integer, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
integer(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, fold(end_array, fold({integer, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
integer(<<?comma/?encoding, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], fold({integer, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
integer(<<?comma/?encoding, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, fold({integer, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
integer(<<?decimalpoint/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
initial_decimal(Rest, Stack, Callbacks, Opts, [?decimalpoint] ++ Acc);
|
||||
integer(<<?zero/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [?zero] ++ Acc);
|
||||
integer(<<$e/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e0." ++ Acc);
|
||||
integer(<<$E/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e0." ++ Acc);
|
||||
integer(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, fold({integer, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
integer(<<?solidus/?encoding, Rest/binary>>, Stack, Callbacks, ?comments_enabled(Opts), Acc) ->
|
||||
maybe_comment(Rest, fun(Resume) -> integer(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
integer(Bin, [], Callbacks, ?stream_mode(Opts), Acc) ->
|
||||
CB = fold({integer, lists:reverse(Acc)}, Callbacks),
|
||||
{fold(end_of_json, CB), fun(Stream) ->
|
||||
start(<<Bin/binary, Stream/binary>>, [], fold(reset, CB), Opts)
|
||||
end};
|
||||
integer(<<>>, [], Callbacks, Opts, Acc) ->
|
||||
{fold(end_of_json, fold({integer, lists:reverse(Acc)}, Callbacks)),
|
||||
fun(Stream) -> integer(Stream, [], Callbacks, Opts, Acc) end};
|
||||
integer(Bin, Stack, Callbacks, Opts, Acc) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> integer(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts, Acc) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
initial_decimal(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
decimal(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
initial_decimal(<<?zero/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
decimal(Rest, Stack, Callbacks, Opts, [?zero] ++ Acc);
|
||||
initial_decimal(Bin, Stack, Callbacks, Opts, Acc) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> initial_decimal(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts, Acc) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
decimal(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
decimal(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
decimal(<<?end_object/?encoding, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, fold(end_object, fold({float, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
decimal(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, fold(end_array, fold({float, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
decimal(<<?comma/?encoding, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], fold({float, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
decimal(<<?comma/?encoding, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, fold({float, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
decimal(<<?zero/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
decimal(Rest, Stack, Callbacks, Opts, [?zero] ++ Acc);
|
||||
decimal(<<$e/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e" ++ Acc);
|
||||
decimal(<<$E/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e" ++ Acc);
|
||||
decimal(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, fold({float, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
decimal(<<?solidus/?encoding, Rest/binary>>, Stack, Callbacks, ?comments_enabled(Opts), Acc) ->
|
||||
maybe_comment(Rest, fun(Resume) -> decimal(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
decimal(Bin, [], Callbacks, ?stream_mode(Opts), Acc) ->
|
||||
CB = fold({float, lists:reverse(Acc)}, Callbacks),
|
||||
{fold(end_of_json, CB), fun(Stream) ->
|
||||
start(<<Bin/binary, Stream/binary>>, [], fold(reset, CB), Opts)
|
||||
end};
|
||||
decimal(<<>>, [], Callbacks, Opts, Acc) ->
|
||||
{fold(end_of_json, fold({float, lists:reverse(Acc)}, Callbacks)),
|
||||
fun(Stream) -> decimal(Stream, [], Callbacks, Opts, Acc) end};
|
||||
decimal(Bin, Stack, Callbacks, Opts, Acc) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> decimal(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts, Acc) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
e(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) when S =:= ?zero; ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
e(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) when S =:= ?positive; S =:= ?negative ->
|
||||
ex(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
e(Bin, Stack, Callbacks, Opts, Acc) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> e(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts, Acc) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
ex(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) when S =:= ?zero; ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
ex(Bin, Stack, Callbacks, Opts, Acc) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> ex(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts, Acc) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
exp(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
exp(<<?end_object/?encoding, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, fold(end_object, fold({float, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
exp(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, fold(end_array, fold({float, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
exp(<<?comma/?encoding, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], fold({float, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
exp(<<?comma/?encoding, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, fold({float, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
exp(<<?zero/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [?zero] ++ Acc);
|
||||
exp(<<?solidus/?encoding, Rest/binary>>, Stack, Callbacks, ?comments_enabled(Opts), Acc) ->
|
||||
maybe_comment(Rest, fun(Resume) -> exp(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
exp(<<S/?encoding, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, fold({float, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
exp(Bin, [], Callbacks, ?stream_mode(Opts), Acc) ->
|
||||
CB = fold({float, lists:reverse(Acc)}, Callbacks),
|
||||
{fold(end_of_json, CB), fun(Stream) ->
|
||||
start(<<Bin/binary, Stream/binary>>, [], fold(reset, CB), Opts)
|
||||
end};
|
||||
exp(<<>>, [], Callbacks, Opts, Acc) ->
|
||||
{fold(end_of_json, fold({float, lists:reverse(Acc)}, Callbacks)),
|
||||
fun(Stream) -> exp(Stream, [], Callbacks, Opts, Acc) end};
|
||||
exp(Bin, Stack, Callbacks, Opts, Acc) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> exp(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts, Acc) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
tr(<<$r/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
tru(Rest, Stack, Callbacks, Opts);
|
||||
tr(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> tr(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
tru(<<$u/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
true(Rest, Stack, Callbacks, Opts);
|
||||
tru(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> tru(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
true(<<$e/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, fold({literal, true}, Callbacks), Opts);
|
||||
true(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> true(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
fa(<<$a/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fal(Rest, Stack, Callbacks, Opts);
|
||||
fa(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> fa(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
fal(<<$l/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fals(Rest, Stack, Callbacks, Opts);
|
||||
fal(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> fal(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
fals(<<$s/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
false(Rest, Stack, Callbacks, Opts);
|
||||
fals(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> fals(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
false(<<$e/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, fold({literal, false}, Callbacks), Opts);
|
||||
false(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> false(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
nu(<<$u/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
nul(Rest, Stack, Callbacks, Opts);
|
||||
nu(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> nu(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
nul(<<$l/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
null(Rest, Stack, Callbacks, Opts);
|
||||
nul(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> nul(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
null(<<$l/?encoding, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, fold({literal, null}, Callbacks), Opts);
|
||||
null(Bin, Stack, Callbacks, Opts) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> null(<<Bin/binary, Stream/binary>>, Stack, Callbacks, Opts) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
%% comments are c style, /* blah blah */ and are STRONGLY discouraged. any unicode
|
||||
%% character is valid in a comment, except, obviously the */ sequence which ends
|
||||
%% the comment. they're implemented as a closure called when the comment ends that
|
||||
%% returns execution to the point where the comment began. comments are not
|
||||
%% recorded in any way, simply parsed.
|
||||
|
||||
maybe_comment(<<?star/?encoding, Rest/binary>>, Resume) ->
|
||||
comment(Rest, Resume);
|
||||
maybe_comment(Bin, Resume) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete,
|
||||
fun(Stream) -> maybe_comment(<<Bin/binary, Stream/binary>>, Resume) end
|
||||
}
|
||||
end.
|
||||
|
||||
|
||||
comment(<<?star/?encoding, Rest/binary>>, Resume) ->
|
||||
maybe_comment_done(Rest, Resume);
|
||||
comment(<<_/?encoding, Rest/binary>>, Resume) ->
|
||||
comment(Rest, Resume);
|
||||
comment(Bin, Resume) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete, fun(Stream) -> comment(<<Bin/binary, Stream/binary>>, Resume) end}
|
||||
end.
|
||||
|
||||
|
||||
maybe_comment_done(<<?solidus/?encoding, Rest/binary>>, Resume) ->
|
||||
Resume(Rest);
|
||||
maybe_comment_done(<<_/?encoding, Rest/binary>>, Resume) ->
|
||||
comment(Rest, Resume);
|
||||
maybe_comment_done(Bin, Resume) ->
|
||||
case byte_size(Bin) >= ?symbol_size of
|
||||
true -> {error, badjson}
|
||||
; _ ->
|
||||
{incomplete, fun(Stream) -> maybe_comment_done(<<Bin/binary, Stream/binary>>, Resume) end}
|
||||
end.
|
||||
Loading…
Add table
Add a link
Reference in a new issue