convert jsx_to_json over to new internal interface
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alisdair sullivan
parent
f58ac5566e
commit
5753baefaf
1 changed files with 38 additions and 74 deletions
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@ -85,74 +85,31 @@ parse_config([], Config) ->
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-define(newline, <<"\n">>).
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init(Config) -> {start, [], parse_config(Config)}.
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init(Config) -> {[], parse_config(Config)}.
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handle_event(Event, {start, Acc, Config}) ->
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case Event of
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{Type, Value} -> {[], [Acc, encode(Type, Value, Config)], Config}
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; start_object -> {[object_start], [Acc, ?start_object], Config}
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; start_array -> {[array_start], [Acc, ?start_array], Config}
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end;
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handle_event(Event, {[object_start|Stack], Acc, OldConfig = #config{depth = Depth}}) ->
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Config = OldConfig#config{depth = Depth + 1},
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case Event of
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{key, Key} ->
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{[object_value|Stack], [Acc, indent(Config), encode(string, Key, Config), ?colon, space(Config)], Config}
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; end_object ->
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{Stack, [Acc, ?end_object], OldConfig}
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end;
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handle_event(Event, {[object_value|Stack], Acc, Config}) ->
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case Event of
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{Type, Value} when Type == string; Type == literal;
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Type == integer; Type == float ->
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{[key|Stack], [Acc, encode(Type, Value, Config)], Config}
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; start_object -> {[object_start, key|Stack], [Acc, ?start_object], Config}
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; start_array -> {[array_start, key|Stack], [Acc, ?start_array], Config}
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end;
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handle_event(Event, {[key|Stack], Acc, Config = #config{depth = Depth}}) ->
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case Event of
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{key, Key} ->
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{[object_value|Stack], [Acc, ?comma, indent_or_space(Config), encode(string, Key, Config), ?colon, space(Config)], Config}
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; end_object ->
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NewConfig = Config#config{depth = Depth - 1},
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{Stack, [Acc, indent(NewConfig), ?end_object], NewConfig}
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end;
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handle_event(Event, {[array_start|Stack], Acc, OldConfig = #config{depth = Depth}}) ->
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Config = OldConfig#config{depth = Depth + 1},
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case Event of
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{Type, Value} when Type == string; Type == literal;
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Type == integer; Type == float ->
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{[array|Stack], [Acc, indent(Config), encode(Type, Value, Config)], Config}
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; start_object -> {[object_start, array|Stack], [Acc, indent(Config), ?start_object], Config}
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; start_array -> {[array_start, array|Stack], [Acc, indent(Config), ?start_array], Config}
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; end_array -> {Stack, [Acc, ?end_array], OldConfig}
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end;
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handle_event(Event, {[array|Stack], Acc, Config = #config{depth = Depth}}) ->
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case Event of
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{Type, Value} when Type == string; Type == literal;
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Type == integer; Type == float ->
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{[array|Stack], [Acc, ?comma, indent_or_space(Config), encode(Type, Value, Config)], Config}
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; end_array ->
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NewConfig = Config#config{depth = Depth - 1},
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{Stack, [Acc, indent(NewConfig), ?end_array], NewConfig}
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; start_object -> {[object_start, array|Stack], [Acc, ?comma, indent_or_space(Config), ?start_object], Config}
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; start_array -> {[array_start, array|Stack], [Acc, ?comma, indent_or_space(Config), ?start_array], Config}
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end;
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handle_event(end_json, {[], Acc, _Config}) -> unicode:characters_to_binary(Acc, utf8).
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handle_event(end_json, {Term, _Config}) -> Term;
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handle_event(start_object, State) -> start_object(State);
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handle_event(end_object, State) -> finish(State);
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handle_event(start_array, State) -> start_array(State);
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handle_event(end_array, State) -> finish(State);
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handle_event({Type, Event}, {_, Config} = State) -> insert(encode(Type, Event, Config), State).
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encode(string, String, _Config) ->
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[?quote, String, ?quote];
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<<?quote/binary, String/binary, ?quote/binary>>;
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encode(key, Key, _Config) ->
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[?quote, Key, ?quote];
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<<?quote/binary, Key/binary, ?quote/binary>>;
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encode(literal, Literal, _Config) ->
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erlang:atom_to_list(Literal);
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unicode:characters_to_binary(erlang:atom_to_list(Literal));
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encode(integer, Integer, _Config) ->
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erlang:integer_to_list(Integer);
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unicode:characters_to_binary(erlang:integer_to_list(Integer));
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encode(float, Float, _Config) ->
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[Output] = io_lib:format("~p", [Float]), Output.
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[Output] = io_lib:format("~p", [Float]), unicode:characters_to_binary(Output).
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space(Config) ->
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@ -345,40 +302,47 @@ indent_or_space_test_() ->
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format_test_() ->
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[
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{"0.0", ?_assert(encode(float, 0.0, #config{}) =:= "0.0")},
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{"1.0", ?_assert(encode(float, 1.0, #config{}) =:= "1.0")},
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{"-1.0", ?_assert(encode(float, -1.0, #config{}) =:= "-1.0")},
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{"0.0", ?_assert(encode(float, 0.0, #config{}) =:= <<"0.0">>)},
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{"1.0", ?_assert(encode(float, 1.0, #config{}) =:= <<"1.0">>)},
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{"-1.0", ?_assert(encode(float, -1.0, #config{}) =:= <<"-1.0">>)},
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{"3.1234567890987654321",
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?_assert(
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encode(float, 3.1234567890987654321, #config{}) =:= "3.1234567890987655")
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encode(float, 3.1234567890987654321, #config{}) =:= <<"3.1234567890987655">>)
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},
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{"1.0e23", ?_assert(encode(float, 1.0e23, #config{}) =:= "1.0e23")},
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{"0.3", ?_assert(encode(float, 3.0/10.0, #config{}) =:= "0.3")},
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{"0.0001", ?_assert(encode(float, 0.0001, #config{}) =:= "0.0001")},
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{"0.00001", ?_assert(encode(float, 0.00001, #config{}) =:= "1.0e-5")},
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{"0.00000001", ?_assert(encode(float, 0.00000001, #config{}) =:= "1.0e-8")},
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{"1.0e-323", ?_assert(encode(float, 1.0e-323, #config{}) =:= "1.0e-323")},
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{"1.0e308", ?_assert(encode(float, 1.0e308, #config{}) =:= "1.0e308")},
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{"1.0e23", ?_assert(encode(float, 1.0e23, #config{}) =:= <<"1.0e23">>)},
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{"0.3", ?_assert(encode(float, 3.0/10.0, #config{}) =:= <<"0.3">>)},
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{"0.0001", ?_assert(encode(float, 0.0001, #config{}) =:= <<"0.0001">>)},
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{"0.00001", ?_assert(encode(float, 0.00001, #config{}) =:= <<"1.0e-5">>)},
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{"0.00000001", ?_assert(encode(float, 0.00000001, #config{}) =:= <<"1.0e-8">>)},
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{"1.0e-323", ?_assert(encode(float, 1.0e-323, #config{}) =:= <<"1.0e-323">>)},
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{"1.0e308", ?_assert(encode(float, 1.0e308, #config{}) =:= <<"1.0e308">>)},
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{"min normalized float",
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?_assert(
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encode(float, math:pow(2, -1022), #config{}) =:= "2.2250738585072014e-308"
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encode(float, math:pow(2, -1022), #config{}) =:= <<"2.2250738585072014e-308">>
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)
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},
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{"max normalized float",
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?_assert(
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encode(float, (2 - math:pow(2, -52)) * math:pow(2, 1023), #config{})
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=:= "1.7976931348623157e308"
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=:= <<"1.7976931348623157e308">>
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)
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},
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{"min denormalized float",
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?_assert(encode(float, math:pow(2, -1074), #config{}) =:= "5.0e-324")
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?_assert(encode(float, math:pow(2, -1074), #config{}) =:= <<"5.0e-324">>)
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},
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{"max denormalized float",
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?_assert(
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encode(float, (1 - math:pow(2, -52)) * math:pow(2, -1022), #config{})
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=:= "2.225073858507201e-308"
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=:= <<"2.225073858507201e-308">>
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)
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}
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},
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{"hello world", ?_assert(encode(string, <<"hello world">>, #config{}) =:= <<"\"hello world\"">>)},
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{"key", ?_assert(encode(key, <<"key">>, #config{}) =:= <<"\"key\"">>)},
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{"1", ?_assert(encode(integer, 1, #config{}) =:= <<"1">>)},
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{"-1", ?_assert(encode(integer, -1, #config{}) =:= <<"-1">>)},
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{"true", ?_assert(encode(literal, true, #config{}) =:= <<"true">>)},
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{"false", ?_assert(encode(literal, false, #config{}) =:= <<"false">>)},
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{"null", ?_assert(encode(literal, null, #config{}) =:= <<"null">>)}
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].
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