removed the need to regenerate the jsx_utfxx decoders. not sure why i didn't do that before, pretty sure i had a bad reason
This commit is contained in:
alisdair sullivan
parent
67d2e6219e
commit
134aa8cc49
10 changed files with 801 additions and 6649 deletions
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@ -20,6 +20,12 @@
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%% OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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%% THE SOFTWARE.
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%% this is the implementation of the utf backends for the jsx decoder. it's included
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%% by the various jsx_utfxx.erl frontends and all modifications to this file
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%% should take that into account
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-include("./include/jsx_common.hrl").
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@ -90,7 +96,6 @@
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).
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%% compilation macros for unified decoder
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-ifdef(utf8).
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-define(encoding, utf8).
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@ -116,3 +121,653 @@
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-define(encoding, utf32-little).
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-define(partial_codepoint(Bin), byte_size(Bin) < 4).
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-endif.
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-export([parse/2]).
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parse(JSON, Opts) ->
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start(JSON, [], Opts).
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start(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_whitespace(S) ->
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start(Rest, Stack, Opts);
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start(<<?start_object/?encoding, Rest/binary>>, Stack, Opts) ->
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{event, start_object, fun() -> object(Rest, [key|Stack], Opts) end};
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start(<<?start_array/?encoding, Rest/binary>>, Stack, Opts) ->
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{event, start_array, fun() -> array(Rest, [array|Stack], Opts) end};
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start(<<?quote/?encoding, Rest/binary>>, Stack, Opts) ->
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string(Rest, Stack, Opts, []);
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start(<<$t/?encoding, Rest/binary>>, Stack, Opts) ->
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tr(Rest, Stack, Opts);
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start(<<$f/?encoding, Rest/binary>>, Stack, Opts) ->
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fa(Rest, Stack, Opts);
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start(<<$n/?encoding, Rest/binary>>, Stack, Opts) ->
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nu(Rest, Stack, Opts);
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start(<<?negative/?encoding, Rest/binary>>, Stack, Opts) ->
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negative(Rest, Stack, Opts, "-");
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start(<<?zero/?encoding, Rest/binary>>, Stack, Opts) ->
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zero(Rest, Stack, Opts, "0");
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start(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_nonzero(S) ->
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integer(Rest, Stack, Opts, [S]);
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start(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts)) ->
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maybe_comment(Rest, fun(Resume) -> start(Resume, Stack, Opts) end);
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start(Bin, Stack, Opts) ->
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case ?partial_codepoint(Bin) of
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true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> start(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
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; false -> {error, badjson}
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end.
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maybe_done(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_whitespace(S) ->
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maybe_done(Rest, Stack, Opts);
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maybe_done(<<?end_object/?encoding, Rest/binary>>, [object|Stack], Opts) ->
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{event, end_object, fun() -> maybe_done(Rest, Stack, Opts) end};
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maybe_done(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Opts) ->
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{event, end_array, fun() -> maybe_done(Rest, Stack, Opts) end};
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maybe_done(<<?comma/?encoding, Rest/binary>>, [object|Stack], Opts) ->
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key(Rest, [key|Stack], Opts);
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maybe_done(<<?comma/?encoding, Rest/binary>>, [array|_] = Stack, Opts) ->
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value(Rest, Stack, Opts);
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maybe_done(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts)) ->
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maybe_comment(Rest, fun(Resume) -> maybe_done(Resume, Stack, Opts) end);
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maybe_done(Rest, [], ?multi_term(Opts)) ->
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{event, end_json, fun() -> start(Rest, [], Opts) end};
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maybe_done(Rest, [], Opts) ->
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done(Rest, Opts);
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maybe_done(Bin, Stack, Opts) ->
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case ?partial_codepoint(Bin) of
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true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> maybe_done(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
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; false -> {error, badjson}
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end.
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done(<<S/?encoding, Rest/binary>>, Opts) when ?is_whitespace(S) ->
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done(Rest, Opts);
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done(<<?solidus/?encoding, Rest/binary>>, ?comments_enabled(Opts)) ->
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maybe_comment(Rest, fun(Resume) -> done(Resume, Opts) end);
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done(<<>>, Opts) ->
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{event, end_json, fun() -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> done(Stream, Opts) end} end};
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done(Bin, Opts) ->
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case ?partial_codepoint(Bin) of
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true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> done(<<Bin/binary, Stream/binary>>, Opts) end}
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; false -> {error, badjson}
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end.
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object(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_whitespace(S) ->
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object(Rest, Stack, Opts);
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object(<<?quote/?encoding, Rest/binary>>, Stack, Opts) ->
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string(Rest, Stack, Opts, []);
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object(<<?end_object/?encoding, Rest/binary>>, [key|Stack], Opts) ->
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{event, end_object, fun() -> maybe_done(Rest, Stack, Opts) end};
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object(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts)) ->
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maybe_comment(Rest, fun(Resume) -> object(Resume, Stack, Opts) end);
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object(Bin, Stack, Opts) ->
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case ?partial_codepoint(Bin) of
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true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> object(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
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; false -> {error, badjson}
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end.
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array(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_whitespace(S) ->
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array(Rest, Stack, Opts);
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array(<<?quote/?encoding, Rest/binary>>, Stack, Opts) ->
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string(Rest, Stack, Opts, []);
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array(<<$t/?encoding, Rest/binary>>, Stack, Opts) ->
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tr(Rest, Stack, Opts);
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array(<<$f/?encoding, Rest/binary>>, Stack, Opts) ->
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fa(Rest, Stack, Opts);
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array(<<$n/?encoding, Rest/binary>>, Stack, Opts) ->
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nu(Rest, Stack, Opts);
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array(<<?negative/?encoding, Rest/binary>>, Stack, Opts) ->
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negative(Rest, Stack, Opts, "-");
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array(<<?zero/?encoding, Rest/binary>>, Stack, Opts) ->
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zero(Rest, Stack, Opts, "0");
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array(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_nonzero(S) ->
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integer(Rest, Stack, Opts, [S]);
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array(<<?start_object/?encoding, Rest/binary>>, Stack, Opts) ->
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{event, start_object, fun() -> object(Rest, [key|Stack], Opts) end};
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array(<<?start_array/?encoding, Rest/binary>>, Stack, Opts) ->
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{event, start_array, fun() -> array(Rest, [array|Stack], Opts) end};
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array(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Opts) ->
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{event, end_array, fun() -> maybe_done(Rest, Stack, Opts) end};
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array(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts)) ->
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maybe_comment(Rest, fun(Resume) -> array(Resume, Stack, Opts) end);
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array(Bin, Stack, Opts) ->
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case ?partial_codepoint(Bin) of
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true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> array(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
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; false -> {error, badjson}
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end.
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value(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_whitespace(S) ->
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value(Rest, Stack, Opts);
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value(<<?quote/?encoding, Rest/binary>>, Stack, Opts) ->
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string(Rest, Stack, Opts, []);
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value(<<$t/?encoding, Rest/binary>>, Stack, Opts) ->
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tr(Rest, Stack, Opts);
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value(<<$f/?encoding, Rest/binary>>, Stack, Opts) ->
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fa(Rest, Stack, Opts);
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value(<<$n/?encoding, Rest/binary>>, Stack, Opts) ->
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nu(Rest, Stack, Opts);
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value(<<?negative/?encoding, Rest/binary>>, Stack, Opts) ->
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negative(Rest, Stack, Opts, "-");
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value(<<?zero/?encoding, Rest/binary>>, Stack, Opts) ->
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zero(Rest, Stack, Opts, "0");
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value(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_nonzero(S) ->
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integer(Rest, Stack, Opts, [S]);
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value(<<?start_object/?encoding, Rest/binary>>, Stack, Opts) ->
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{event, start_object, fun() -> object(Rest, [key|Stack], Opts) end};
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value(<<?start_array/?encoding, Rest/binary>>, Stack, Opts) ->
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{event, start_array, fun() -> array(Rest, [array|Stack], Opts) end};
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value(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts)) ->
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maybe_comment(Rest, fun(Resume) -> value(Resume, Stack, Opts) end);
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value(Bin, Stack, Opts) ->
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case ?partial_codepoint(Bin) of
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true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> value(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
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; false -> {error, badjson}
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end.
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colon(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_whitespace(S) ->
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colon(Rest, Stack, Opts);
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colon(<<?colon/?encoding, Rest/binary>>, [key|Stack], Opts) ->
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value(Rest, [object|Stack], Opts);
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colon(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts)) ->
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maybe_comment(Rest, fun(Resume) -> colon(Resume, Stack, Opts) end);
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colon(Bin, Stack, Opts) ->
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case ?partial_codepoint(Bin) of
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true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> colon(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
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; false -> {error, badjson}
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end.
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key(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_whitespace(S) ->
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key(Rest, Stack, Opts);
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key(<<?quote/?encoding, Rest/binary>>, Stack, Opts) ->
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string(Rest, Stack, Opts, []);
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key(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts)) ->
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maybe_comment(Rest, fun(Resume) -> key(Resume, Stack, Opts) end);
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key(Bin, Stack, Opts) ->
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case ?partial_codepoint(Bin) of
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true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> key(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
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; false -> {error, badjson}
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end.
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%% string has an additional parameter, an accumulator (Acc) used to hold the intermediate
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%% representation of the string being parsed. using a list of integers representing
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%% unicode codepoints is faster than constructing binaries, many of which will be
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%% converted back to lists by the user anyways
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%% string uses partial_utf/1 to cease parsing when invalid encodings are encountered
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%% rather than just checking remaining binary size like other states
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string(<<?quote/?encoding, Rest/binary>>, [key|_] = Stack, Opts, Acc) ->
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{event, {key, lists:reverse(Acc)}, fun() -> colon(Rest, Stack, Opts) end};
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string(<<?quote/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
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{event, {string, lists:reverse(Acc)}, fun() -> maybe_done(Rest, Stack, Opts) end};
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string(<<?rsolidus/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
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escape(Rest, Stack, Opts, Acc);
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string(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_noncontrol(S) ->
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string(Rest, Stack, Opts, [S] ++ Acc);
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string(Bin, Stack, Opts, Acc) ->
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case partial_utf(Bin) of
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true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> string(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
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; false -> {error, badjson}
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end.
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-ifdef(utf8).
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partial_utf(<<>>) -> true;
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partial_utf(<<X>>) when X >= 16#c2, X =< 16#df -> true;
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partial_utf(<<X, Rest/binary>>) when X >= 16#e0, X =< 16#ef ->
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case Rest of
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<<>> -> true
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; <<Y>> when Y >= 16#80, Y =< 16#bf -> true
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end;
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partial_utf(<<X, Rest/binary>>) when X >= 16#f0, X =< 16#f4 ->
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case Rest of
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<<>> -> true
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; <<Y>> when Y >= 16#80, Y =< 16#bf -> true
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; <<Y, Z>> when Y >= 16#80, Y =< 16#bf, Z >= 16#80, Z =< 16#bf -> true
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end;
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partial_utf(_) -> false.
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-endif.
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-ifdef(utf16).
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partial_utf(<<>>) -> true;
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%% this case is not strictly true, there are single bytes that should be rejected, but
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%% they're rare enough they can be ignored
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partial_utf(<<_X>>) -> true;
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partial_utf(<<X, _Y>>) when X >= 16#d8, X =< 16#df -> true;
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partial_utf(<<X, _Y, Z>>) when X >= 16#d8, X =< 16#df, Z >= 16#dc, Z =< 16#df -> true;
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partial_utf(_) -> false.
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-endif.
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-ifdef(utf16le).
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partial_utf(<<>>) -> true;
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%% this case is not strictly true, there are single bytes that should be rejected, but
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%% they're rare enough they can be ignored
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partial_utf(<<_X>>) -> true;
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partial_utf(<<_Y, X>>) when X >= 16#d8, X =< 16#df -> true;
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partial_utf(<<_Y, X, _Z>>) when X >= 16#d8, X =< 16#df -> true;
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partial_utf(_) -> false.
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-endif.
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-ifdef(utf32).
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partial_utf(<<_:32>>) -> false;
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partial_utf(_) -> true.
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-endif.
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-ifdef(utf32le).
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partial_utf(<<_:32>>) -> false;
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partial_utf(_) -> true.
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-endif.
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%% only thing to note here is the additional accumulator passed to escaped_unicode used
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%% to hold the codepoint sequence. unescessary, but nicer than using the string
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%% accumulator
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escape(<<$b/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
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string(Rest, Stack, Opts, "\b" ++ Acc);
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escape(<<$f/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
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string(Rest, Stack, Opts, "\f" ++ Acc);
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escape(<<$n/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
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string(Rest, Stack, Opts, "\n" ++ Acc);
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escape(<<$r/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
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string(Rest, Stack, Opts, "\r" ++ Acc);
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escape(<<$t/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
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string(Rest, Stack, Opts, "\t" ++ Acc);
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escape(<<$u/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
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escaped_unicode(Rest, Stack, Opts, Acc, []);
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escape(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc)
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when S =:= ?quote; S =:= ?solidus; S =:= ?rsolidus ->
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string(Rest, Stack, Opts, [S] ++ Acc);
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escape(Bin, Stack, Opts, Acc) ->
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case ?partial_codepoint(Bin) of
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true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> escape(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
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; false -> {error, badjson}
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end.
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%% this code is ugly and unfortunate, but so is json's handling of escaped unicode
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%% codepoint sequences. if the ascii option is present, the sequence is converted
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%% to a codepoint and inserted into the string if it represents an ascii value. if
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%% the codepoint option is present the sequence is converted and inserted as long
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%% as it represents a valid unicode codepoint. this means non-characters
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%% representable in 16 bits are not converted (the utf16 surrogates and the two
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%% special non-characters). any other option and no conversion is done
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escaped_unicode(<<D/?encoding, Rest/binary>>,
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Stack,
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?escaped_unicode_to_ascii(Opts),
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String,
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[C, B, A])
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when ?is_hex(D) ->
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case erlang:list_to_integer([A, B, C, D], 16) of
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X when X < 128 ->
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string(Rest, Stack, Opts, [X] ++ String)
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; _ ->
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string(Rest, Stack, Opts, [D, C, B, A, $u, ?rsolidus] ++ String)
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end;
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escaped_unicode(<<D/?encoding, Rest/binary>>,
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Stack,
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?escaped_unicode_to_codepoint(Opts),
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String,
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[C, B, A])
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when ?is_hex(D) ->
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case erlang:list_to_integer([A, B, C, D], 16) of
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X when X >= 16#dc00, X =< 16#dfff ->
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case check_acc_for_surrogate(String) of
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false ->
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string(Rest, Stack, Opts, [D, C, B, A, $u, ?rsolidus] ++ String)
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; {Y, NewString} ->
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string(Rest, Stack, Opts, [surrogate_to_codepoint(Y, X)] ++ NewString)
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end
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; X when X < 16#d800; X > 16#dfff, X < 16#fffe ->
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string(Rest, Stack, Opts, [X] ++ String)
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; _ ->
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string(Rest, Stack, Opts, [D, C, B, A, $u, ?rsolidus] ++ String)
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end;
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escaped_unicode(<<D/?encoding, Rest/binary>>, Stack, Opts, String, [C, B, A]) when ?is_hex(D) ->
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string(Rest, Stack, Opts, [D, C, B, A, $u, ?rsolidus] ++ String);
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escaped_unicode(<<S/?encoding, Rest/binary>>, Stack, Opts, String, Acc) when ?is_hex(S) ->
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escaped_unicode(Rest, Stack, Opts, String, [S] ++ Acc);
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escaped_unicode(Bin, Stack, Opts, String, Acc) ->
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case ?partial_codepoint(Bin) of
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true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> escaped_unicode(<<Bin/binary, Stream/binary>>, Stack, Opts, String, Acc) end}
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; false -> {error, badjson}
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end.
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|
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|
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%% upon encountering a low pair json/hex encoded value, check to see if there's a high
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%% value already in the accumulator
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check_acc_for_surrogate([D, C, B, A, $u, ?rsolidus|Rest])
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when ?is_hex(D), ?is_hex(C), ?is_hex(B), ?is_hex(A) ->
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case erlang:list_to_integer([A, B, C, D], 16) of
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X when X >=16#d800, X =< 16#dbff ->
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{X, Rest};
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_ ->
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false
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end;
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check_acc_for_surrogate(_) ->
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false.
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%% 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, Opts, Acc) ->
|
||||
zero(Rest, Stack, Opts, "0" ++ Acc);
|
||||
negative(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Opts, [S] ++ Acc);
|
||||
negative(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> negative(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
zero(<<?end_object/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_object, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
zero(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_array, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
zero(<<?comma/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() -> key(Rest, [key|Stack], Opts) end};
|
||||
zero(<<?comma/?encoding, Rest/binary>>, [array|_] = Stack, Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() -> value(Rest, Stack, Opts) end};
|
||||
zero(<<?decimalpoint/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
initial_decimal(Rest, Stack, Opts, [?decimalpoint] ++ Acc);
|
||||
zero(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_whitespace(S) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
zero(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts), Acc) ->
|
||||
maybe_comment(Rest, fun(Resume) -> zero(Resume, Stack, Opts, Acc) end);
|
||||
zero(<<>>, [], Opts, Acc) ->
|
||||
{incomplete, fun(end_stream) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_json, fun() -> zero(<<>>, [], Opts, Acc) end}
|
||||
end}
|
||||
; (Stream) -> zero(Stream, [], Opts, Acc)
|
||||
end};
|
||||
zero(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> zero(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
integer(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Opts, [S] ++ Acc);
|
||||
integer(<<?end_object/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_object, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
integer(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_array, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
integer(<<?comma/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() -> key(Rest, [key|Stack], Opts) end};
|
||||
integer(<<?comma/?encoding, Rest/binary>>, [array|_] = Stack, Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() -> value(Rest, Stack, Opts) end};
|
||||
integer(<<?decimalpoint/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
initial_decimal(Rest, Stack, Opts, [?decimalpoint] ++ Acc);
|
||||
integer(<<?zero/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
integer(Rest, Stack, Opts, [?zero] ++ Acc);
|
||||
integer(<<$e/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
e(Rest, Stack, Opts, "e0." ++ Acc);
|
||||
integer(<<$E/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
e(Rest, Stack, Opts, "e0." ++ Acc);
|
||||
integer(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_whitespace(S) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
integer(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts), Acc) ->
|
||||
maybe_comment(Rest, fun(Resume) -> integer(Resume, Stack, Opts, Acc) end);
|
||||
integer(<<>>, [], Opts, Acc) ->
|
||||
{incomplete, fun(end_stream) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_json, fun() -> integer(<<>>, [], Opts, Acc) end}
|
||||
end}
|
||||
; (Stream) -> integer(Stream, [], Opts, Acc)
|
||||
end};
|
||||
integer(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> integer(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
initial_decimal(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_nonzero(S) ->
|
||||
decimal(Rest, Stack, Opts, [S] ++ Acc);
|
||||
initial_decimal(<<?zero/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
decimal(Rest, Stack, Opts, [?zero] ++ Acc);
|
||||
initial_decimal(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> initial_decimal(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
decimal(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_nonzero(S) ->
|
||||
decimal(Rest, Stack, Opts, [S] ++ Acc);
|
||||
decimal(<<?end_object/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_object, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
decimal(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_array, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
decimal(<<?comma/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() -> key(Rest, [key|Stack], Opts) end};
|
||||
decimal(<<?comma/?encoding, Rest/binary>>, [array|_] = Stack, Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() -> value(Rest, Stack, Opts) end};
|
||||
decimal(<<?zero/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
decimal(Rest, Stack, Opts, [?zero] ++ Acc);
|
||||
decimal(<<$e/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
e(Rest, Stack, Opts, "e" ++ Acc);
|
||||
decimal(<<$E/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
e(Rest, Stack, Opts, "e" ++ Acc);
|
||||
decimal(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_whitespace(S) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
decimal(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts), Acc) ->
|
||||
maybe_comment(Rest, fun(Resume) -> decimal(Resume, Stack, Opts, Acc) end);
|
||||
decimal(<<>>, [], Opts, Acc) ->
|
||||
{incomplete, fun(end_stream) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_json, fun() -> decimal(<<>>, [], Opts, Acc) end}
|
||||
end}
|
||||
; (Stream) -> decimal(Stream, [], Opts, Acc)
|
||||
end};
|
||||
decimal(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> decimal(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
e(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when S =:= ?zero; ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Opts, [S] ++ Acc);
|
||||
e(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when S =:= ?positive; S =:= ?negative ->
|
||||
ex(Rest, Stack, Opts, [S] ++ Acc);
|
||||
e(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> e(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
ex(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when S =:= ?zero; ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Opts, [S] ++ Acc);
|
||||
ex(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> ex(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
exp(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Opts, [S] ++ Acc);
|
||||
exp(<<?end_object/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_object, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
exp(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_array, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
exp(<<?comma/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() -> key(Rest, [key|Stack], Opts) end};
|
||||
exp(<<?comma/?encoding, Rest/binary>>, [array|_] = Stack, Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() -> value(Rest, Stack, Opts) end};
|
||||
exp(<<?zero/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
exp(Rest, Stack, Opts, [?zero] ++ Acc);
|
||||
exp(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_whitespace(S) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
exp(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts), Acc) ->
|
||||
maybe_comment(Rest, fun(Resume) -> exp(Resume, Stack, Opts, Acc) end);
|
||||
exp(<<>>, [], Opts, Acc) ->
|
||||
{incomplete, fun(end_stream) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_json, fun() -> exp(<<>>, [], Opts, Acc) end}
|
||||
end}
|
||||
; (Stream) -> exp(Stream, [], Opts, Acc)
|
||||
end};
|
||||
exp(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> exp(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
tr(<<$r/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
tru(Rest, Stack, Opts);
|
||||
tr(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> tr(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
tru(<<$u/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
true(Rest, Stack, Opts);
|
||||
tru(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> tru(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
true(<<$e/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
{event, {literal, true}, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
true(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> true(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
fa(<<$a/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
fal(Rest, Stack, Opts);
|
||||
fa(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> fa(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
fal(<<$l/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
fals(Rest, Stack, Opts);
|
||||
fal(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> fal(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
fals(<<$s/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
false(Rest, Stack, Opts);
|
||||
fals(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> fals(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
false(<<$e/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
{event, {literal, false}, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
false(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> false(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
nu(<<$u/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
nul(Rest, Stack, Opts);
|
||||
nu(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> nu(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
nul(<<$l/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
null(Rest, Stack, Opts);
|
||||
nul(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> nul(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
null(<<$l/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
{event, {literal, null}, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
null(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> null(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
%% comments are c style, ex: /* blah blah */
|
||||
%% any unicode character is valid in a comment except 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
|
||||
%% reported in any way, simply parsed.
|
||||
maybe_comment(<<?star/?encoding, Rest/binary>>, Resume) ->
|
||||
comment(Rest, Resume);
|
||||
maybe_comment(Bin, Resume) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> maybe_comment(<<Bin/binary, Stream/binary>>, Resume) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
comment(<<?star/?encoding, Rest/binary>>, Resume) ->
|
||||
maybe_comment_done(Rest, Resume);
|
||||
comment(<<_/?encoding, Rest/binary>>, Resume) ->
|
||||
comment(Rest, Resume);
|
||||
comment(Bin, Resume) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> comment(<<Bin/binary, Stream/binary>>, Resume) end}
|
||||
; false -> {error, badjson}
|
||||
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 ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> maybe_comment_done(<<Bin/binary, Stream/binary>>, Resume) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
|
@ -1,751 +0,0 @@
|
|||
-include("./include/jsx_common.hrl").
|
||||
|
||||
|
||||
|
||||
-spec parse(JSON::eep0018(), Opts::jsx_opts()) -> jsx_parser_result().
|
||||
|
||||
|
||||
%% option flags
|
||||
|
||||
-define(comments_enabled(X), {_, true, _, _, _} = X).
|
||||
-define(escaped_unicode_to_ascii(X), {_, _, ascii, _, _} = X).
|
||||
-define(escaped_unicode_to_codepoint(X), {_, _, codepoint, _, _} = X).
|
||||
-define(multi_term(X), {_, _, _, true, _} = X).
|
||||
|
||||
%% whitespace
|
||||
-define(space, 16#20).
|
||||
-define(tab, 16#09).
|
||||
-define(cr, 16#0D).
|
||||
-define(newline, 16#0A).
|
||||
|
||||
%% object delimiters
|
||||
-define(start_object, 16#7B).
|
||||
-define(end_object, 16#7D).
|
||||
|
||||
%% array delimiters
|
||||
-define(start_array, 16#5B).
|
||||
-define(end_array, 16#5D).
|
||||
|
||||
%% kv seperator
|
||||
-define(comma, 16#2C).
|
||||
-define(quote, 16#22).
|
||||
-define(colon, 16#3A).
|
||||
|
||||
%% string escape sequences
|
||||
-define(escape, 16#5C).
|
||||
-define(rsolidus, 16#5C).
|
||||
-define(solidus, 16#2F).
|
||||
-define(formfeed, 16#0C).
|
||||
-define(backspace, 16#08).
|
||||
-define(unicode, 16#75).
|
||||
|
||||
%% math
|
||||
-define(zero, 16#30).
|
||||
-define(decimalpoint, 16#2E).
|
||||
-define(negative, 16#2D).
|
||||
-define(positive, 16#2B).
|
||||
|
||||
%% comments
|
||||
-define(star, 16#2a).
|
||||
|
||||
|
||||
%% some useful guards
|
||||
-define(is_hex(Symbol),
|
||||
(Symbol >= $a andalso Symbol =< $z); (Symbol >= $A andalso Symbol =< $Z);
|
||||
(Symbol >= $0 andalso Symbol =< $9)
|
||||
).
|
||||
|
||||
-define(is_nonzero(Symbol),
|
||||
Symbol >= $1 andalso Symbol =< $9
|
||||
).
|
||||
|
||||
-define(is_noncontrol(Symbol),
|
||||
Symbol >= ?space
|
||||
).
|
||||
|
||||
-define(is_whitespace(Symbol),
|
||||
Symbol =:= ?space; Symbol =:= ?tab; Symbol =:= ?cr; Symbol =:= ?newline
|
||||
).
|
||||
|
||||
|
||||
|
||||
%% compilation macros for unified decoder
|
||||
-ifdef(utf8).
|
||||
-define(encoding, utf8).
|
||||
-define(partial_codepoint(Bin), byte_size(Bin) < 1).
|
||||
-endif.
|
||||
|
||||
-ifdef(utf16).
|
||||
-define(encoding, utf16).
|
||||
-define(partial_codepoint(Bin), byte_size(Bin) < 2).
|
||||
-endif.
|
||||
|
||||
-ifdef(utf16le).
|
||||
-define(encoding, utf16-little).
|
||||
-define(partial_codepoint(Bin), byte_size(Bin) < 2).
|
||||
-endif.
|
||||
|
||||
-ifdef(utf32).
|
||||
-define(encoding, utf32).
|
||||
-define(partial_codepoint(Bin), byte_size(Bin) < 4).
|
||||
-endif.
|
||||
|
||||
-ifdef(utf32le).
|
||||
-define(encoding, utf32-little).
|
||||
-define(partial_codepoint(Bin), byte_size(Bin) < 4).
|
||||
-endif.
|
||||
|
||||
|
||||
%% this is the template for the utf backends for the jsx decoder. it's included
|
||||
%% by the various jsx_utfxx.erl frontends and all modifications to this file
|
||||
%% should take that into account
|
||||
|
||||
|
||||
-export([parse/2]).
|
||||
|
||||
|
||||
|
||||
parse(JSON, Opts) ->
|
||||
start(JSON, [], Opts).
|
||||
|
||||
|
||||
start(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_whitespace(S) ->
|
||||
start(Rest, Stack, Opts);
|
||||
start(<<?start_object/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
{event, start_object, fun() -> object(Rest, [key|Stack], Opts) end};
|
||||
start(<<?start_array/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
{event, start_array, fun() -> array(Rest, [array|Stack], Opts) end};
|
||||
start(<<?quote/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
string(Rest, Stack, Opts, []);
|
||||
start(<<$t/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
tr(Rest, Stack, Opts);
|
||||
start(<<$f/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
fa(Rest, Stack, Opts);
|
||||
start(<<$n/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
nu(Rest, Stack, Opts);
|
||||
start(<<?negative/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
negative(Rest, Stack, Opts, "-");
|
||||
start(<<?zero/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
zero(Rest, Stack, Opts, "0");
|
||||
start(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Opts, [S]);
|
||||
start(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts)) ->
|
||||
maybe_comment(Rest, fun(Resume) -> start(Resume, Stack, Opts) end);
|
||||
start(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> start(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
maybe_done(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, Opts);
|
||||
maybe_done(<<?end_object/?encoding, Rest/binary>>, [object|Stack], Opts) ->
|
||||
{event, end_object, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
maybe_done(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Opts) ->
|
||||
{event, end_array, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
maybe_done(<<?comma/?encoding, Rest/binary>>, [object|Stack], Opts) ->
|
||||
key(Rest, [key|Stack], Opts);
|
||||
maybe_done(<<?comma/?encoding, Rest/binary>>, [array|_] = Stack, Opts) ->
|
||||
value(Rest, Stack, Opts);
|
||||
maybe_done(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts)) ->
|
||||
maybe_comment(Rest, fun(Resume) -> maybe_done(Resume, Stack, Opts) end);
|
||||
maybe_done(Rest, [], ?multi_term(Opts)) ->
|
||||
{event, end_json, fun() -> start(Rest, [], Opts) end};
|
||||
maybe_done(Rest, [], Opts) ->
|
||||
done(Rest, Opts);
|
||||
maybe_done(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> maybe_done(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
done(<<S/?encoding, Rest/binary>>, Opts) when ?is_whitespace(S) ->
|
||||
done(Rest, Opts);
|
||||
done(<<?solidus/?encoding, Rest/binary>>, ?comments_enabled(Opts)) ->
|
||||
maybe_comment(Rest, fun(Resume) -> done(Resume, Opts) end);
|
||||
done(<<>>, Opts) ->
|
||||
{event, end_json, fun() -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> done(Stream, Opts) end} end};
|
||||
done(Bin, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> done(<<Bin/binary, Stream/binary>>, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
object(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_whitespace(S) ->
|
||||
object(Rest, Stack, Opts);
|
||||
object(<<?quote/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
string(Rest, Stack, Opts, []);
|
||||
object(<<?end_object/?encoding, Rest/binary>>, [key|Stack], Opts) ->
|
||||
{event, end_object, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
object(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts)) ->
|
||||
maybe_comment(Rest, fun(Resume) -> object(Resume, Stack, Opts) end);
|
||||
object(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> object(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
array(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_whitespace(S) ->
|
||||
array(Rest, Stack, Opts);
|
||||
array(<<?quote/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
string(Rest, Stack, Opts, []);
|
||||
array(<<$t/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
tr(Rest, Stack, Opts);
|
||||
array(<<$f/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
fa(Rest, Stack, Opts);
|
||||
array(<<$n/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
nu(Rest, Stack, Opts);
|
||||
array(<<?negative/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
negative(Rest, Stack, Opts, "-");
|
||||
array(<<?zero/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
zero(Rest, Stack, Opts, "0");
|
||||
array(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Opts, [S]);
|
||||
array(<<?start_object/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
{event, start_object, fun() -> object(Rest, [key|Stack], Opts) end};
|
||||
array(<<?start_array/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
{event, start_array, fun() -> array(Rest, [array|Stack], Opts) end};
|
||||
array(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Opts) ->
|
||||
{event, end_array, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
array(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts)) ->
|
||||
maybe_comment(Rest, fun(Resume) -> array(Resume, Stack, Opts) end);
|
||||
array(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> array(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
value(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_whitespace(S) ->
|
||||
value(Rest, Stack, Opts);
|
||||
value(<<?quote/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
string(Rest, Stack, Opts, []);
|
||||
value(<<$t/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
tr(Rest, Stack, Opts);
|
||||
value(<<$f/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
fa(Rest, Stack, Opts);
|
||||
value(<<$n/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
nu(Rest, Stack, Opts);
|
||||
value(<<?negative/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
negative(Rest, Stack, Opts, "-");
|
||||
value(<<?zero/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
zero(Rest, Stack, Opts, "0");
|
||||
value(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Opts, [S]);
|
||||
value(<<?start_object/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
{event, start_object, fun() -> object(Rest, [key|Stack], Opts) end};
|
||||
value(<<?start_array/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
{event, start_array, fun() -> array(Rest, [array|Stack], Opts) end};
|
||||
value(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts)) ->
|
||||
maybe_comment(Rest, fun(Resume) -> value(Resume, Stack, Opts) end);
|
||||
value(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> value(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
colon(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_whitespace(S) ->
|
||||
colon(Rest, Stack, Opts);
|
||||
colon(<<?colon/?encoding, Rest/binary>>, [key|Stack], Opts) ->
|
||||
value(Rest, [object|Stack], Opts);
|
||||
colon(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts)) ->
|
||||
maybe_comment(Rest, fun(Resume) -> colon(Resume, Stack, Opts) end);
|
||||
colon(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> colon(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
key(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_whitespace(S) ->
|
||||
key(Rest, Stack, Opts);
|
||||
key(<<?quote/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
string(Rest, Stack, Opts, []);
|
||||
key(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts)) ->
|
||||
maybe_comment(Rest, fun(Resume) -> key(Resume, Stack, Opts) end);
|
||||
key(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> key(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
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 uses partial_utf/1 to cease parsing when invalid encodings are encountered
|
||||
%% rather than just checking remaining binary size like other states
|
||||
string(<<?quote/?encoding, Rest/binary>>, [key|_] = Stack, Opts, Acc) ->
|
||||
{event, {key, lists:reverse(Acc)}, fun() -> colon(Rest, Stack, Opts) end};
|
||||
string(<<?quote/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
{event, {string, lists:reverse(Acc)}, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
string(<<?rsolidus/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
escape(Rest, Stack, Opts, Acc);
|
||||
string(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_noncontrol(S) ->
|
||||
string(Rest, Stack, Opts, [S] ++ Acc);
|
||||
string(Bin, Stack, Opts, Acc) ->
|
||||
case partial_utf(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> string(<<Bin/binary, Stream/binary>>, Stack, 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(<<$b/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
string(Rest, Stack, Opts, "\b" ++ Acc);
|
||||
escape(<<$f/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
string(Rest, Stack, Opts, "\f" ++ Acc);
|
||||
escape(<<$n/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
string(Rest, Stack, Opts, "\n" ++ Acc);
|
||||
escape(<<$r/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
string(Rest, Stack, Opts, "\r" ++ Acc);
|
||||
escape(<<$t/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
string(Rest, Stack, Opts, "\t" ++ Acc);
|
||||
escape(<<$u/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
escaped_unicode(Rest, Stack, Opts, Acc, []);
|
||||
escape(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc)
|
||||
when S =:= ?quote; S =:= ?solidus; S =:= ?rsolidus ->
|
||||
string(Rest, Stack, Opts, [S] ++ Acc);
|
||||
escape(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> escape(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
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,
|
||||
?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, Opts, [X] ++ String)
|
||||
; _ ->
|
||||
string(Rest, Stack, Opts, [D, C, B, A, $u, ?rsolidus] ++ String)
|
||||
end;
|
||||
escaped_unicode(<<D/?encoding, Rest/binary>>,
|
||||
Stack,
|
||||
?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, Opts, [D, C, B, A, $u, ?rsolidus] ++ String)
|
||||
; {Y, NewString} ->
|
||||
string(Rest, Stack, Opts, [surrogate_to_codepoint(Y, X)] ++ NewString)
|
||||
end
|
||||
; X when X < 16#d800; X > 16#dfff, X < 16#fffe ->
|
||||
string(Rest, Stack, Opts, [X] ++ String)
|
||||
; _ ->
|
||||
string(Rest, Stack, Opts, [D, C, B, A, $u, ?rsolidus] ++ String)
|
||||
end;
|
||||
escaped_unicode(<<D/?encoding, Rest/binary>>, Stack, Opts, String, [C, B, A]) when ?is_hex(D) ->
|
||||
string(Rest, Stack, Opts, [D, C, B, A, $u, ?rsolidus] ++ String);
|
||||
escaped_unicode(<<S/?encoding, Rest/binary>>, Stack, Opts, String, Acc) when ?is_hex(S) ->
|
||||
escaped_unicode(Rest, Stack, Opts, String, [S] ++ Acc);
|
||||
escaped_unicode(Bin, Stack, Opts, String, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> escaped_unicode(<<Bin/binary, Stream/binary>>, Stack, Opts, String, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
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, Opts, Acc) ->
|
||||
zero(Rest, Stack, Opts, "0" ++ Acc);
|
||||
negative(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Opts, [S] ++ Acc);
|
||||
negative(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> negative(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
zero(<<?end_object/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_object, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
zero(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_array, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
zero(<<?comma/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() -> key(Rest, [key|Stack], Opts) end};
|
||||
zero(<<?comma/?encoding, Rest/binary>>, [array|_] = Stack, Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() -> value(Rest, Stack, Opts) end};
|
||||
zero(<<?decimalpoint/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
initial_decimal(Rest, Stack, Opts, [?decimalpoint] ++ Acc);
|
||||
zero(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_whitespace(S) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
zero(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts), Acc) ->
|
||||
maybe_comment(Rest, fun(Resume) -> zero(Resume, Stack, Opts, Acc) end);
|
||||
zero(<<>>, [], Opts, Acc) ->
|
||||
{incomplete, fun(end_stream) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_json, fun() -> zero(<<>>, [], Opts, Acc) end}
|
||||
end}
|
||||
; (Stream) -> zero(Stream, [], Opts, Acc)
|
||||
end};
|
||||
zero(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> zero(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
integer(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Opts, [S] ++ Acc);
|
||||
integer(<<?end_object/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_object, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
integer(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_array, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
integer(<<?comma/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() -> key(Rest, [key|Stack], Opts) end};
|
||||
integer(<<?comma/?encoding, Rest/binary>>, [array|_] = Stack, Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() -> value(Rest, Stack, Opts) end};
|
||||
integer(<<?decimalpoint/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
initial_decimal(Rest, Stack, Opts, [?decimalpoint] ++ Acc);
|
||||
integer(<<?zero/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
integer(Rest, Stack, Opts, [?zero] ++ Acc);
|
||||
integer(<<$e/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
e(Rest, Stack, Opts, "e0." ++ Acc);
|
||||
integer(<<$E/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
e(Rest, Stack, Opts, "e0." ++ Acc);
|
||||
integer(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_whitespace(S) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
integer(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts), Acc) ->
|
||||
maybe_comment(Rest, fun(Resume) -> integer(Resume, Stack, Opts, Acc) end);
|
||||
integer(<<>>, [], Opts, Acc) ->
|
||||
{incomplete, fun(end_stream) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_json, fun() -> integer(<<>>, [], Opts, Acc) end}
|
||||
end}
|
||||
; (Stream) -> integer(Stream, [], Opts, Acc)
|
||||
end};
|
||||
integer(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> integer(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
initial_decimal(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_nonzero(S) ->
|
||||
decimal(Rest, Stack, Opts, [S] ++ Acc);
|
||||
initial_decimal(<<?zero/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
decimal(Rest, Stack, Opts, [?zero] ++ Acc);
|
||||
initial_decimal(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> initial_decimal(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
decimal(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_nonzero(S) ->
|
||||
decimal(Rest, Stack, Opts, [S] ++ Acc);
|
||||
decimal(<<?end_object/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_object, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
decimal(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_array, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
decimal(<<?comma/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() -> key(Rest, [key|Stack], Opts) end};
|
||||
decimal(<<?comma/?encoding, Rest/binary>>, [array|_] = Stack, Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() -> value(Rest, Stack, Opts) end};
|
||||
decimal(<<?zero/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
decimal(Rest, Stack, Opts, [?zero] ++ Acc);
|
||||
decimal(<<$e/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
e(Rest, Stack, Opts, "e" ++ Acc);
|
||||
decimal(<<$E/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
e(Rest, Stack, Opts, "e" ++ Acc);
|
||||
decimal(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_whitespace(S) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
decimal(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts), Acc) ->
|
||||
maybe_comment(Rest, fun(Resume) -> decimal(Resume, Stack, Opts, Acc) end);
|
||||
decimal(<<>>, [], Opts, Acc) ->
|
||||
{incomplete, fun(end_stream) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_json, fun() -> decimal(<<>>, [], Opts, Acc) end}
|
||||
end}
|
||||
; (Stream) -> decimal(Stream, [], Opts, Acc)
|
||||
end};
|
||||
decimal(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> decimal(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
e(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when S =:= ?zero; ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Opts, [S] ++ Acc);
|
||||
e(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when S =:= ?positive; S =:= ?negative ->
|
||||
ex(Rest, Stack, Opts, [S] ++ Acc);
|
||||
e(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> e(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
ex(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when S =:= ?zero; ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Opts, [S] ++ Acc);
|
||||
ex(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> ex(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
exp(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Opts, [S] ++ Acc);
|
||||
exp(<<?end_object/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_object, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
exp(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_array, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
exp(<<?comma/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() -> key(Rest, [key|Stack], Opts) end};
|
||||
exp(<<?comma/?encoding, Rest/binary>>, [array|_] = Stack, Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() -> value(Rest, Stack, Opts) end};
|
||||
exp(<<?zero/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
exp(Rest, Stack, Opts, [?zero] ++ Acc);
|
||||
exp(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_whitespace(S) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
exp(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts), Acc) ->
|
||||
maybe_comment(Rest, fun(Resume) -> exp(Resume, Stack, Opts, Acc) end);
|
||||
exp(<<>>, [], Opts, Acc) ->
|
||||
{incomplete, fun(end_stream) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_json, fun() -> exp(<<>>, [], Opts, Acc) end}
|
||||
end}
|
||||
; (Stream) -> exp(Stream, [], Opts, Acc)
|
||||
end};
|
||||
exp(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> exp(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
tr(<<$r/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
tru(Rest, Stack, Opts);
|
||||
tr(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> tr(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
tru(<<$u/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
true(Rest, Stack, Opts);
|
||||
tru(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> tru(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
true(<<$e/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
{event, {literal, true}, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
true(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> true(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
fa(<<$a/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
fal(Rest, Stack, Opts);
|
||||
fa(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> fa(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
fal(<<$l/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
fals(Rest, Stack, Opts);
|
||||
fal(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> fal(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
fals(<<$s/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
false(Rest, Stack, Opts);
|
||||
fals(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> fals(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
false(<<$e/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
{event, {literal, false}, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
false(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> false(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
nu(<<$u/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
nul(Rest, Stack, Opts);
|
||||
nu(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> nu(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
nul(<<$l/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
null(Rest, Stack, Opts);
|
||||
nul(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> nul(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
null(<<$l/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
{event, {literal, null}, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
null(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> null(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
%% comments are c style, ex: /* blah blah */
|
||||
%% any unicode character is valid in a comment except 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
|
||||
%% reported in any way, simply parsed.
|
||||
maybe_comment(<<?star/?encoding, Rest/binary>>, Resume) ->
|
||||
comment(Rest, Resume);
|
||||
maybe_comment(Bin, Resume) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> maybe_comment(<<Bin/binary, Stream/binary>>, Resume) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
comment(<<?star/?encoding, Rest/binary>>, Resume) ->
|
||||
maybe_comment_done(Rest, Resume);
|
||||
comment(<<_/?encoding, Rest/binary>>, Resume) ->
|
||||
comment(Rest, Resume);
|
||||
comment(Bin, Resume) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> comment(<<Bin/binary, Stream/binary>>, Resume) end}
|
||||
; false -> {error, badjson}
|
||||
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 ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> maybe_comment_done(<<Bin/binary, Stream/binary>>, Resume) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
7
makefile
7
makefile
|
|
@ -1,10 +1,7 @@
|
|||
compile:
|
||||
./rebar compile
|
||||
|
||||
expand:
|
||||
./priv/backends.escript create
|
||||
|
||||
test:
|
||||
test: force
|
||||
./rebar eunit
|
||||
|
||||
clean:
|
||||
|
|
@ -12,3 +9,5 @@ clean:
|
|||
|
||||
install: compile
|
||||
./rebar -f install
|
||||
|
||||
force:
|
||||
|
|
@ -1,55 +0,0 @@
|
|||
#!/usr/bin/env escript
|
||||
|
||||
%% 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.
|
||||
|
||||
main(["create"]) ->
|
||||
lists:foreach(
|
||||
fun(X) -> to_src(X) end,
|
||||
[ to_abf(Backend) || Backend <- ["utf8", "utf16", "utf16le", "utf32", "utf32le"] ]
|
||||
);
|
||||
|
||||
main(["clean"]) ->
|
||||
[ file:delete(Filename) || Filename <- ["src/jsx_utf8.erl", "src/jsx_utf16.erl", "src/jsx_utf16le.erl", "src/jsx_utf32.erl", "src/jsx_utf32le.erl"] ].
|
||||
|
||||
to_abf(Backend) ->
|
||||
case os:getenv("TMPDIR") of
|
||||
false -> Out = "."
|
||||
; Out -> Out
|
||||
end,
|
||||
Name = to_modname(Backend),
|
||||
{ok, _, ABF} = compile:file(
|
||||
"priv/jsx_decoder_template.erl",
|
||||
[binary, 'P', {outdir, Out}, {d, list_to_atom(Backend)}, {d, name, Name}]
|
||||
),
|
||||
{Name, ABF}.
|
||||
|
||||
to_src({Name, ABF}) ->
|
||||
{ok, Outfile} = file:open("src/" ++ atom_to_list(Name) ++ ".erl", [write, delayed_write]),
|
||||
lists:foreach(fun(Form) -> io:put_chars(Outfile, [erl_pp:form(Form), "\n"]) end, ABF),
|
||||
file:close(Outfile).
|
||||
|
||||
to_modname(Name) ->
|
||||
list_to_atom("jsx_" ++ Name).
|
||||
|
||||
|
||||
|
||||
|
|
@ -1,683 +0,0 @@
|
|||
%% 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 the template for the utf backends for the jsx decoder. run
|
||||
%% `./priv/backends.escript create` to regenerate the source code for the various
|
||||
%% decoders if you edit this file. do not edit the resulting source files directly.
|
||||
|
||||
|
||||
-module(?name).
|
||||
-author("alisdairsullivan@yahoo.ca").
|
||||
|
||||
|
||||
-export([parse/2]).
|
||||
|
||||
|
||||
-include("./include/jsx_decoder.hrl").
|
||||
|
||||
|
||||
|
||||
parse(JSON, Opts) ->
|
||||
start(JSON, [], Opts).
|
||||
|
||||
|
||||
start(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_whitespace(S) ->
|
||||
start(Rest, Stack, Opts);
|
||||
start(<<?start_object/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
{event, start_object, fun() -> object(Rest, [key|Stack], Opts) end};
|
||||
start(<<?start_array/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
{event, start_array, fun() -> array(Rest, [array|Stack], Opts) end};
|
||||
start(<<?quote/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
string(Rest, Stack, Opts, []);
|
||||
start(<<$t/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
tr(Rest, Stack, Opts);
|
||||
start(<<$f/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
fa(Rest, Stack, Opts);
|
||||
start(<<$n/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
nu(Rest, Stack, Opts);
|
||||
start(<<?negative/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
negative(Rest, Stack, Opts, "-");
|
||||
start(<<?zero/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
zero(Rest, Stack, Opts, "0");
|
||||
start(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Opts, [S]);
|
||||
start(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts)) ->
|
||||
maybe_comment(Rest, fun(Resume) -> start(Resume, Stack, Opts) end);
|
||||
start(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> start(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
maybe_done(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, Opts);
|
||||
maybe_done(<<?end_object/?encoding, Rest/binary>>, [object|Stack], Opts) ->
|
||||
{event, end_object, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
maybe_done(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Opts) ->
|
||||
{event, end_array, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
maybe_done(<<?comma/?encoding, Rest/binary>>, [object|Stack], Opts) ->
|
||||
key(Rest, [key|Stack], Opts);
|
||||
maybe_done(<<?comma/?encoding, Rest/binary>>, [array|_] = Stack, Opts) ->
|
||||
value(Rest, Stack, Opts);
|
||||
maybe_done(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts)) ->
|
||||
maybe_comment(Rest, fun(Resume) -> maybe_done(Resume, Stack, Opts) end);
|
||||
maybe_done(Rest, [], ?multi_term(Opts)) ->
|
||||
{event, end_json, fun() -> start(Rest, [], Opts) end};
|
||||
maybe_done(Rest, [], Opts) ->
|
||||
done(Rest, Opts);
|
||||
maybe_done(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> maybe_done(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
done(<<S/?encoding, Rest/binary>>, Opts) when ?is_whitespace(S) ->
|
||||
done(Rest, Opts);
|
||||
done(<<?solidus/?encoding, Rest/binary>>, ?comments_enabled(Opts)) ->
|
||||
maybe_comment(Rest, fun(Resume) -> done(Resume, Opts) end);
|
||||
done(<<>>, Opts) ->
|
||||
{event, end_json, fun() -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> done(Stream, Opts) end} end};
|
||||
done(Bin, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> done(<<Bin/binary, Stream/binary>>, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
object(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_whitespace(S) ->
|
||||
object(Rest, Stack, Opts);
|
||||
object(<<?quote/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
string(Rest, Stack, Opts, []);
|
||||
object(<<?end_object/?encoding, Rest/binary>>, [key|Stack], Opts) ->
|
||||
{event, end_object, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
object(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts)) ->
|
||||
maybe_comment(Rest, fun(Resume) -> object(Resume, Stack, Opts) end);
|
||||
object(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> object(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
array(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_whitespace(S) ->
|
||||
array(Rest, Stack, Opts);
|
||||
array(<<?quote/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
string(Rest, Stack, Opts, []);
|
||||
array(<<$t/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
tr(Rest, Stack, Opts);
|
||||
array(<<$f/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
fa(Rest, Stack, Opts);
|
||||
array(<<$n/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
nu(Rest, Stack, Opts);
|
||||
array(<<?negative/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
negative(Rest, Stack, Opts, "-");
|
||||
array(<<?zero/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
zero(Rest, Stack, Opts, "0");
|
||||
array(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Opts, [S]);
|
||||
array(<<?start_object/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
{event, start_object, fun() -> object(Rest, [key|Stack], Opts) end};
|
||||
array(<<?start_array/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
{event, start_array, fun() -> array(Rest, [array|Stack], Opts) end};
|
||||
array(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Opts) ->
|
||||
{event, end_array, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
array(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts)) ->
|
||||
maybe_comment(Rest, fun(Resume) -> array(Resume, Stack, Opts) end);
|
||||
array(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> array(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
value(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_whitespace(S) ->
|
||||
value(Rest, Stack, Opts);
|
||||
value(<<?quote/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
string(Rest, Stack, Opts, []);
|
||||
value(<<$t/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
tr(Rest, Stack, Opts);
|
||||
value(<<$f/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
fa(Rest, Stack, Opts);
|
||||
value(<<$n/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
nu(Rest, Stack, Opts);
|
||||
value(<<?negative/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
negative(Rest, Stack, Opts, "-");
|
||||
value(<<?zero/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
zero(Rest, Stack, Opts, "0");
|
||||
value(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Opts, [S]);
|
||||
value(<<?start_object/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
{event, start_object, fun() -> object(Rest, [key|Stack], Opts) end};
|
||||
value(<<?start_array/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
{event, start_array, fun() -> array(Rest, [array|Stack], Opts) end};
|
||||
value(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts)) ->
|
||||
maybe_comment(Rest, fun(Resume) -> value(Resume, Stack, Opts) end);
|
||||
value(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> value(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
colon(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_whitespace(S) ->
|
||||
colon(Rest, Stack, Opts);
|
||||
colon(<<?colon/?encoding, Rest/binary>>, [key|Stack], Opts) ->
|
||||
value(Rest, [object|Stack], Opts);
|
||||
colon(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts)) ->
|
||||
maybe_comment(Rest, fun(Resume) -> colon(Resume, Stack, Opts) end);
|
||||
colon(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> colon(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
key(<<S/?encoding, Rest/binary>>, Stack, Opts) when ?is_whitespace(S) ->
|
||||
key(Rest, Stack, Opts);
|
||||
key(<<?quote/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
string(Rest, Stack, Opts, []);
|
||||
key(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts)) ->
|
||||
maybe_comment(Rest, fun(Resume) -> key(Resume, Stack, Opts) end);
|
||||
key(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> key(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
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 uses partial_utf/1 to cease parsing when invalid encodings are encountered
|
||||
%% rather than just checking remaining binary size like other states
|
||||
string(<<?quote/?encoding, Rest/binary>>, [key|_] = Stack, Opts, Acc) ->
|
||||
{event, {key, lists:reverse(Acc)}, fun() -> colon(Rest, Stack, Opts) end};
|
||||
string(<<?quote/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
{event, {string, lists:reverse(Acc)}, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
string(<<?rsolidus/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
escape(Rest, Stack, Opts, Acc);
|
||||
string(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_noncontrol(S) ->
|
||||
string(Rest, Stack, Opts, [S] ++ Acc);
|
||||
string(Bin, Stack, Opts, Acc) ->
|
||||
case partial_utf(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> string(<<Bin/binary, Stream/binary>>, Stack, 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(<<$b/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
string(Rest, Stack, Opts, "\b" ++ Acc);
|
||||
escape(<<$f/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
string(Rest, Stack, Opts, "\f" ++ Acc);
|
||||
escape(<<$n/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
string(Rest, Stack, Opts, "\n" ++ Acc);
|
||||
escape(<<$r/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
string(Rest, Stack, Opts, "\r" ++ Acc);
|
||||
escape(<<$t/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
string(Rest, Stack, Opts, "\t" ++ Acc);
|
||||
escape(<<$u/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
escaped_unicode(Rest, Stack, Opts, Acc, []);
|
||||
escape(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc)
|
||||
when S =:= ?quote; S =:= ?solidus; S =:= ?rsolidus ->
|
||||
string(Rest, Stack, Opts, [S] ++ Acc);
|
||||
escape(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> escape(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
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,
|
||||
?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, Opts, [X] ++ String)
|
||||
; _ ->
|
||||
string(Rest, Stack, Opts, [D, C, B, A, $u, ?rsolidus] ++ String)
|
||||
end;
|
||||
escaped_unicode(<<D/?encoding, Rest/binary>>,
|
||||
Stack,
|
||||
?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, Opts, [D, C, B, A, $u, ?rsolidus] ++ String)
|
||||
; {Y, NewString} ->
|
||||
string(Rest, Stack, Opts, [surrogate_to_codepoint(Y, X)] ++ NewString)
|
||||
end
|
||||
; X when X < 16#d800; X > 16#dfff, X < 16#fffe ->
|
||||
string(Rest, Stack, Opts, [X] ++ String)
|
||||
; _ ->
|
||||
string(Rest, Stack, Opts, [D, C, B, A, $u, ?rsolidus] ++ String)
|
||||
end;
|
||||
escaped_unicode(<<D/?encoding, Rest/binary>>, Stack, Opts, String, [C, B, A]) when ?is_hex(D) ->
|
||||
string(Rest, Stack, Opts, [D, C, B, A, $u, ?rsolidus] ++ String);
|
||||
escaped_unicode(<<S/?encoding, Rest/binary>>, Stack, Opts, String, Acc) when ?is_hex(S) ->
|
||||
escaped_unicode(Rest, Stack, Opts, String, [S] ++ Acc);
|
||||
escaped_unicode(Bin, Stack, Opts, String, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> escaped_unicode(<<Bin/binary, Stream/binary>>, Stack, Opts, String, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
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, Opts, Acc) ->
|
||||
zero(Rest, Stack, Opts, "0" ++ Acc);
|
||||
negative(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Opts, [S] ++ Acc);
|
||||
negative(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> negative(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
zero(<<?end_object/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_object, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
zero(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_array, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
zero(<<?comma/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() -> key(Rest, [key|Stack], Opts) end};
|
||||
zero(<<?comma/?encoding, Rest/binary>>, [array|_] = Stack, Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() -> value(Rest, Stack, Opts) end};
|
||||
zero(<<?decimalpoint/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
initial_decimal(Rest, Stack, Opts, [?decimalpoint] ++ Acc);
|
||||
zero(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_whitespace(S) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
zero(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts), Acc) ->
|
||||
maybe_comment(Rest, fun(Resume) -> zero(Resume, Stack, Opts, Acc) end);
|
||||
zero(<<>>, [], Opts, Acc) ->
|
||||
{incomplete, fun(end_stream) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_json, fun() -> zero(<<>>, [], Opts, Acc) end}
|
||||
end}
|
||||
; (Stream) -> zero(Stream, [], Opts, Acc)
|
||||
end};
|
||||
zero(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> zero(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
integer(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Opts, [S] ++ Acc);
|
||||
integer(<<?end_object/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_object, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
integer(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_array, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
integer(<<?comma/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() -> key(Rest, [key|Stack], Opts) end};
|
||||
integer(<<?comma/?encoding, Rest/binary>>, [array|_] = Stack, Opts, Acc) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() -> value(Rest, Stack, Opts) end};
|
||||
integer(<<?decimalpoint/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
initial_decimal(Rest, Stack, Opts, [?decimalpoint] ++ Acc);
|
||||
integer(<<?zero/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
integer(Rest, Stack, Opts, [?zero] ++ Acc);
|
||||
integer(<<$e/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
e(Rest, Stack, Opts, "e0." ++ Acc);
|
||||
integer(<<$E/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
e(Rest, Stack, Opts, "e0." ++ Acc);
|
||||
integer(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_whitespace(S) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
integer(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts), Acc) ->
|
||||
maybe_comment(Rest, fun(Resume) -> integer(Resume, Stack, Opts, Acc) end);
|
||||
integer(<<>>, [], Opts, Acc) ->
|
||||
{incomplete, fun(end_stream) ->
|
||||
{event, {integer, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_json, fun() -> integer(<<>>, [], Opts, Acc) end}
|
||||
end}
|
||||
; (Stream) -> integer(Stream, [], Opts, Acc)
|
||||
end};
|
||||
integer(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> integer(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
initial_decimal(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_nonzero(S) ->
|
||||
decimal(Rest, Stack, Opts, [S] ++ Acc);
|
||||
initial_decimal(<<?zero/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
decimal(Rest, Stack, Opts, [?zero] ++ Acc);
|
||||
initial_decimal(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> initial_decimal(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
decimal(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_nonzero(S) ->
|
||||
decimal(Rest, Stack, Opts, [S] ++ Acc);
|
||||
decimal(<<?end_object/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_object, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
decimal(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_array, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
decimal(<<?comma/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() -> key(Rest, [key|Stack], Opts) end};
|
||||
decimal(<<?comma/?encoding, Rest/binary>>, [array|_] = Stack, Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() -> value(Rest, Stack, Opts) end};
|
||||
decimal(<<?zero/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
decimal(Rest, Stack, Opts, [?zero] ++ Acc);
|
||||
decimal(<<$e/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
e(Rest, Stack, Opts, "e" ++ Acc);
|
||||
decimal(<<$E/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
e(Rest, Stack, Opts, "e" ++ Acc);
|
||||
decimal(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_whitespace(S) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
decimal(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts), Acc) ->
|
||||
maybe_comment(Rest, fun(Resume) -> decimal(Resume, Stack, Opts, Acc) end);
|
||||
decimal(<<>>, [], Opts, Acc) ->
|
||||
{incomplete, fun(end_stream) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_json, fun() -> decimal(<<>>, [], Opts, Acc) end}
|
||||
end}
|
||||
; (Stream) -> decimal(Stream, [], Opts, Acc)
|
||||
end};
|
||||
decimal(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> decimal(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
e(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when S =:= ?zero; ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Opts, [S] ++ Acc);
|
||||
e(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when S =:= ?positive; S =:= ?negative ->
|
||||
ex(Rest, Stack, Opts, [S] ++ Acc);
|
||||
e(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> e(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
ex(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when S =:= ?zero; ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Opts, [S] ++ Acc);
|
||||
ex(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> ex(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
exp(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Opts, [S] ++ Acc);
|
||||
exp(<<?end_object/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_object, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
exp(<<?end_array/?encoding, Rest/binary>>, [array|Stack], Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_array, fun() -> maybe_done(Rest, Stack, Opts) end}
|
||||
end};
|
||||
exp(<<?comma/?encoding, Rest/binary>>, [object|Stack], Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() -> key(Rest, [key|Stack], Opts) end};
|
||||
exp(<<?comma/?encoding, Rest/binary>>, [array|_] = Stack, Opts, Acc) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() -> value(Rest, Stack, Opts) end};
|
||||
exp(<<?zero/?encoding, Rest/binary>>, Stack, Opts, Acc) ->
|
||||
exp(Rest, Stack, Opts, [?zero] ++ Acc);
|
||||
exp(<<S/?encoding, Rest/binary>>, Stack, Opts, Acc) when ?is_whitespace(S) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
exp(<<?solidus/?encoding, Rest/binary>>, Stack, ?comments_enabled(Opts), Acc) ->
|
||||
maybe_comment(Rest, fun(Resume) -> exp(Resume, Stack, Opts, Acc) end);
|
||||
exp(<<>>, [], Opts, Acc) ->
|
||||
{incomplete, fun(end_stream) ->
|
||||
{event, {float, lists:reverse(Acc)}, fun() ->
|
||||
{event, end_json, fun() -> exp(<<>>, [], Opts, Acc) end}
|
||||
end}
|
||||
; (Stream) -> exp(Stream, [], Opts, Acc)
|
||||
end};
|
||||
exp(Bin, Stack, Opts, Acc) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> exp(<<Bin/binary, Stream/binary>>, Stack, Opts, Acc) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
tr(<<$r/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
tru(Rest, Stack, Opts);
|
||||
tr(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> tr(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
tru(<<$u/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
true(Rest, Stack, Opts);
|
||||
tru(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> tru(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
true(<<$e/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
{event, {literal, true}, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
true(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> true(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
fa(<<$a/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
fal(Rest, Stack, Opts);
|
||||
fa(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> fa(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
fal(<<$l/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
fals(Rest, Stack, Opts);
|
||||
fal(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> fal(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
fals(<<$s/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
false(Rest, Stack, Opts);
|
||||
fals(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> fals(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
false(<<$e/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
{event, {literal, false}, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
false(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> false(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
nu(<<$u/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
nul(Rest, Stack, Opts);
|
||||
nu(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> nu(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
nul(<<$l/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
null(Rest, Stack, Opts);
|
||||
nul(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> nul(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
null(<<$l/?encoding, Rest/binary>>, Stack, Opts) ->
|
||||
{event, {literal, null}, fun() -> maybe_done(Rest, Stack, Opts) end};
|
||||
null(Bin, Stack, Opts) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> null(<<Bin/binary, Stream/binary>>, Stack, Opts) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
%% comments are c style, ex: /* blah blah */
|
||||
%% any unicode character is valid in a comment except 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
|
||||
%% reported in any way, simply parsed.
|
||||
maybe_comment(<<?star/?encoding, Rest/binary>>, Resume) ->
|
||||
comment(Rest, Resume);
|
||||
maybe_comment(Bin, Resume) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> maybe_comment(<<Bin/binary, Stream/binary>>, Resume) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
|
||||
|
||||
comment(<<?star/?encoding, Rest/binary>>, Resume) ->
|
||||
maybe_comment_done(Rest, Resume);
|
||||
comment(<<_/?encoding, Rest/binary>>, Resume) ->
|
||||
comment(Rest, Resume);
|
||||
comment(Bin, Resume) ->
|
||||
case ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> comment(<<Bin/binary, Stream/binary>>, Resume) end}
|
||||
; false -> {error, badjson}
|
||||
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 ?partial_codepoint(Bin) of
|
||||
true -> {incomplete, fun(end_stream) -> {error, badjson}; (Stream) -> maybe_comment_done(<<Bin/binary, Stream/binary>>, Resume) end}
|
||||
; false -> {error, badjson}
|
||||
end.
|
||||
1308
src/jsx_utf16.erl
1308
src/jsx_utf16.erl
File diff suppressed because it is too large
Load diff
1326
src/jsx_utf16le.erl
1326
src/jsx_utf16le.erl
File diff suppressed because it is too large
Load diff
1303
src/jsx_utf32.erl
1303
src/jsx_utf32.erl
File diff suppressed because it is too large
Load diff
1320
src/jsx_utf32le.erl
1320
src/jsx_utf32le.erl
File diff suppressed because it is too large
Load diff
|
|
@ -1,7 +1,35 @@
|
|||
%% 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.
|
||||
|
||||
|
||||
%% @hidden hide this module from edoc, exported functions are internal to jsx
|
||||
%% and may be altered or removed without notice
|
||||
|
||||
|
||||
-module(jsx_utf8).
|
||||
|
||||
|
||||
-define(utf8, true).
|
||||
-include("./include/jsx_decoder.hrl").
|
||||
|
||||
|
||||
-include("./include/jsx_decoder_template.hrl").
|
||||
%% i've noticed you've noticed that there's no source here. very astute. see
|
||||
%% jsx_decoder_template.hrl in the include directory. any mofications to this
|
||||
%% module should be made there, but keep in mind other modules also include
|
||||
%% that header
|
||||
Loading…
Add table
Add a link
Reference in a new issue