added option for explicit termination requirement when parsing streams
This commit is contained in:
alisdair sullivan
parent
3b3e33c6e3
commit
6515f9981d
11 changed files with 59 additions and 2232 deletions
33
src/jsx.erl
33
src/jsx.erl
|
|
@ -13,17 +13,7 @@ decoder(Callbacks, OptsList) when is_list(OptsList) ->
|
|||
decoder(Callbacks, Opts) ->
|
||||
case Opts#opts.encoding of
|
||||
utf8 ->
|
||||
fun(Stream) -> jsx_utf8:start(Stream, [], init_callbacks(Callbacks), Opts) end
|
||||
; utf16b ->
|
||||
fun(Stream) -> jsx_utf16b:start(Stream, [], init_callbacks(Callbacks), Opts) end
|
||||
; utf16l ->
|
||||
fun(Stream) -> jsx_utf16l:start(Stream, [], init_callbacks(Callbacks), Opts) end
|
||||
; utf32b ->
|
||||
fun(Stream) -> jsx_utf32b:start(Stream, [], init_callbacks(Callbacks), Opts) end
|
||||
; utf32l ->
|
||||
fun(Stream) -> jsx_utf32l:start(Stream, [], init_callbacks(Callbacks), Opts) end
|
||||
; auto ->
|
||||
fun(Stream) -> detect_encoding(Stream, Callbacks, Opts) end
|
||||
fun(Stream) -> jsx_decoder:start(Stream, [], init_callbacks(Callbacks), Opts) end
|
||||
end.
|
||||
|
||||
|
||||
|
|
@ -40,10 +30,13 @@ parse_opts([{escaped_unicode, Value}|Rest], Opts) ->
|
|||
parse_opts(Rest, Opts#opts{escaped_unicode = Value});
|
||||
parse_opts([{naked_values, Value}|Rest], Opts) ->
|
||||
true = lists:member(Value, [true, false]),
|
||||
parse_opts(Rest, Opts#opts{naked_values = Value});
|
||||
parse_opts(Rest, Opts#opts{naked_values = Value, explicit_termination = true});
|
||||
parse_opts([{encoding, Value}|Rest], Opts) ->
|
||||
true = lists:member(Value, [auto, utf8, utf16b, utf16l, utf32b, utf32l]),
|
||||
parse_opts(Rest, Opts#opts{encoding = Value}).
|
||||
true = lists:member(Value, [utf8]),
|
||||
parse_opts(Rest, Opts#opts{encoding = Value});
|
||||
parse_opts([{explicit_termination, Value}|Rest], Opts) ->
|
||||
true = lists:member(Value, [true, false]),
|
||||
parse_opts(Rest, Opts#opts{explicit_termination = Value}).
|
||||
|
||||
init_callbacks(none) ->
|
||||
{none, []};
|
||||
|
|
@ -52,15 +45,3 @@ init_callbacks({M, S}) when is_atom(M) ->
|
|||
init_callbacks({F, S}) when is_function(F) ->
|
||||
{F, S}.
|
||||
|
||||
detect_encoding(<<A:8, B:8, C:8, D:8, _/binary>> = Stream, Callbacks, Opts) ->
|
||||
Encoding = case [A, B, C, D] of
|
||||
[0, 0, 0, _] -> utf32b
|
||||
; [0, _, 0, _] -> utf16b
|
||||
; [_, 0, 0, 0] -> utf32l
|
||||
; [_, 0, _, 0] -> utf16l
|
||||
; _ -> utf8
|
||||
end,
|
||||
(decoder(Callbacks, Opts#opts{encoding = Encoding}))(Stream);
|
||||
detect_encoding(Else, Callbacks, Opts) ->
|
||||
fun(Stream) -> detect_encoding(<<Else/binary, Stream/binary>>, Callbacks, Opts) end.
|
||||
|
||||
|
|
|
|||
|
|
@ -2,7 +2,8 @@
|
|||
comments = false,
|
||||
escaped_unicode = ascii,
|
||||
naked_values = false,
|
||||
encoding = auto
|
||||
encoding = utf8,
|
||||
explicit_termination = false
|
||||
}).
|
||||
|
||||
%% whitespace
|
||||
|
|
|
|||
|
|
@ -38,7 +38,10 @@ start(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
|||
start(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> start(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
maybe_done(eof, [], Callbacks, Opts) when Opts#opts.explicit_termination == true ->
|
||||
{callback(eof, Callbacks), <<>>};
|
||||
maybe_done(Rest, [], Callbacks, Opts) when Opts#opts.explicit_termination == false ->
|
||||
{callback(eof, Callbacks), Rest};
|
||||
maybe_done(<<?end_object/utf8, Rest/binary>>, [object|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, Callbacks), Opts);
|
||||
maybe_done(<<?end_array/utf8, Rest/binary>>, [array|Stack], Callbacks, Opts) ->
|
||||
|
|
@ -51,8 +54,6 @@ maybe_done(<<?solidus/utf8, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opt
|
|||
maybe_comment(Rest, fun(Resume) -> maybe_done(Resume, Stack, Callbacks, Opts) end);
|
||||
maybe_done(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, Callbacks, Opts);
|
||||
maybe_done(<<>>, [], Callbacks, _Opts) ->
|
||||
callback(eof, Callbacks);
|
||||
maybe_done(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> maybe_done(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
|
@ -236,10 +237,14 @@ zero(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S
|
|||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
zero(<<?solidus/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> zero(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
zero(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
zero(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> zero(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
zero(<<>>, [], Callbacks, Opts, Acc) when Opts#opts.explicit_termination == false ->
|
||||
{callback(eof, callback({number, lists:reverse(Acc)}, Callbacks)), <<>>};
|
||||
zero(<<>>, Stack, Callbacks, Opts, Acc) when Opts#opts.explicit_termination == false ->
|
||||
fun(Stream) -> zero(Stream, Stack, Callbacks, Opts, Acc) end;
|
||||
zero(<<>>, Stack, Callbacks, Opts, Acc) when Opts#opts.explicit_termination == true ->
|
||||
fun(eof) -> {callback(eof, callback({number, lists:reverse(Acc)}, Callbacks)), <<>>}
|
||||
;(Stream) -> zero(Stream, Stack, Callbacks, Opts, Acc)
|
||||
end.
|
||||
|
||||
|
||||
integer(<<?end_object/utf8, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
|
|
@ -264,10 +269,14 @@ integer(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespac
|
|||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
integer(<<?solidus/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> integer(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
integer(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
integer(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> integer(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
integer(<<>>, [], Callbacks, Opts, Acc) when Opts#opts.explicit_termination == false ->
|
||||
{callback(eof, callback({number, lists:reverse(Acc)}, Callbacks)), <<>>};
|
||||
integer(<<>>, Stack, Callbacks, Opts, Acc) when Opts#opts.explicit_termination == false ->
|
||||
fun(Stream) -> integer(Stream, Stack, Callbacks, Opts, Acc) end;
|
||||
integer(<<>>, Stack, Callbacks, Opts, Acc) when Opts#opts.explicit_termination == true ->
|
||||
fun(eof) -> {callback(eof, callback({number, lists:reverse(Acc)}, Callbacks)), <<>>}
|
||||
;(Stream) -> integer(Stream, Stack, Callbacks, Opts, Acc)
|
||||
end.
|
||||
|
||||
|
||||
fraction(<<?end_object/utf8, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
|
|
@ -290,10 +299,14 @@ fraction(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespa
|
|||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
fraction(<<?solidus/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> fraction(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
fraction(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
fraction(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> fraction(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
fraction(<<>>, [], Callbacks, Opts, Acc) when Opts#opts.explicit_termination == false ->
|
||||
{callback(eof, callback({number, lists:reverse(Acc)}, Callbacks)), <<>>};
|
||||
fraction(<<>>, Stack, Callbacks, Opts, Acc) when Opts#opts.explicit_termination == false ->
|
||||
fun(Stream) -> fraction(Stream, Stack, Callbacks, Opts, Acc) end;
|
||||
fraction(<<>>, Stack, Callbacks, Opts, Acc) when Opts#opts.explicit_termination == true ->
|
||||
fun(eof) -> {callback(eof, callback({number, lists:reverse(Acc)}, Callbacks)), <<>>}
|
||||
;(Stream) -> fraction(Stream, Stack, Callbacks, Opts, Acc)
|
||||
end.
|
||||
|
||||
|
||||
e(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when S =:= ?positive; S =:= ?negative ->
|
||||
|
|
@ -326,10 +339,14 @@ exp(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S)
|
|||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
exp(<<?rsolidus/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> exp(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
exp(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
exp(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> exp(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
exp(<<>>, [], Callbacks, Opts, Acc) when Opts#opts.explicit_termination == false ->
|
||||
{callback(eof, callback({number, lists:reverse(Acc)}, Callbacks)), <<>>};
|
||||
exp(<<>>, Stack, Callbacks, Opts, Acc) when Opts#opts.explicit_termination == false ->
|
||||
fun(Stream) -> exp(Stream, Stack, Callbacks, Opts, Acc) end;
|
||||
exp(<<>>, Stack, Callbacks, Opts, Acc) when Opts#opts.explicit_termination == true ->
|
||||
fun(eof) -> {callback(eof, callback({number, lists:reverse(Acc)}, Callbacks)), <<>>}
|
||||
;(Stream) -> exp(Stream, Stack, Callbacks, Opts, Acc)
|
||||
end.
|
||||
|
||||
|
||||
tr(<<"r"/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
|
|
|
|||
|
|
@ -1,436 +0,0 @@
|
|||
-module(jsx_utf16b).
|
||||
|
||||
-export([start/4]).
|
||||
|
||||
-include("jsx_common.hrl").
|
||||
|
||||
|
||||
%% this code is mostly autogenerated and mostly ugly. apologies. for more insight on
|
||||
%% Callbacks or Opts, see the comments accompanying decoder/2 (in jsx.erl). Stack
|
||||
%% is a stack of flags used to track depth and to keep track of whether we are
|
||||
%% returning from a value or a key inside objects. all pops, peeks and pushes are
|
||||
%% inlined. the code that handles naked values and comments is not optimized by the
|
||||
%% compiler for efficient matching, but you shouldn't be using naked values or comments
|
||||
%% anyways, they are horrible and contrary to the spec.
|
||||
|
||||
start(<<?start_object/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
object(Rest, [key|Stack], callback(start_object, Callbacks), Opts);
|
||||
start(<<?start_array/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
array(Rest, [array|Stack], callback(start_array, Callbacks), Opts);
|
||||
start(<<?quote/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
start(<<$t/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
tr(Rest, Stack, Callbacks, Opts);
|
||||
start(<<$f/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
fa(Rest, Stack, Callbacks, Opts);
|
||||
start(<<$n/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
nu(Rest, Stack, Callbacks, Opts);
|
||||
start(<<?negative/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
negative(Rest, Stack, Callbacks, Opts, "-");
|
||||
start(<<?zero/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0");
|
||||
start(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) when ?is_nonzero(S), Opts#opts.naked_values == true ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S]);
|
||||
start(<<?solidus/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> start(Resume, Stack, Callbacks, Opts) end);
|
||||
start(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
start(Rest, Stack, Callbacks, Opts);
|
||||
start(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> start(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
maybe_done(<<?end_object/utf16-big, Rest/binary>>, [object|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, Callbacks), Opts);
|
||||
maybe_done(<<?end_array/utf16-big, Rest/binary>>, [array|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, Callbacks), Opts);
|
||||
maybe_done(<<?comma/utf16-big, Rest/binary>>, [object|Stack], Callbacks, Opts) ->
|
||||
key(Rest, [key|Stack], Callbacks, Opts);
|
||||
maybe_done(<<?comma/utf16-big, Rest/binary>>, [array|_] = Stack, Callbacks, Opts) ->
|
||||
value(Rest, Stack, Callbacks, Opts);
|
||||
maybe_done(<<?solidus/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> maybe_done(Resume, Stack, Callbacks, Opts) end);
|
||||
maybe_done(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, Callbacks, Opts);
|
||||
maybe_done(<<>>, [], Callbacks, _Opts) ->
|
||||
callback(eof, Callbacks);
|
||||
maybe_done(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> maybe_done(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
object(<<?end_object/utf16-big, Rest/binary>>, [key|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, Callbacks), Opts);
|
||||
object(<<?quote/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
object(<<?solidus/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> object(Resume, Stack, Callbacks, Opts) end);
|
||||
object(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
object(Rest, Stack, Callbacks, Opts);
|
||||
object(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> object(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
array(<<?quote/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
array(<<?start_object/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
object(Rest, [key|Stack], callback(start_object, Callbacks), Opts);
|
||||
array(<<?start_array/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
array(Rest, [array|Stack], callback(start_array, Callbacks), Opts);
|
||||
array(<<?end_array/utf16-big, Rest/binary>>, [array|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, Callbacks), Opts);
|
||||
array(<<$t/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
tr(Rest, Stack, Callbacks, Opts);
|
||||
array(<<$f/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fa(Rest, Stack, Callbacks, Opts);
|
||||
array(<<$n/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
nu(Rest, Stack, Callbacks, Opts);
|
||||
array(<<?negative/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
negative(Rest, Stack, Callbacks, Opts, "-");
|
||||
array(<<?zero/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0");
|
||||
array(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S]);
|
||||
array(<<?solidus/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> array(Resume, Stack, Callbacks, Opts) end);
|
||||
array(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
array(Rest, Stack, Callbacks, Opts);
|
||||
array(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> array(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
value(<<?quote/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
value(<<?start_object/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
object(Rest, [key|Stack], callback(start_object, Callbacks), Opts);
|
||||
value(<<?start_array/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
array(Rest, [array|Stack], callback(start_array, Callbacks), Opts);
|
||||
value(<<$t/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
tr(Rest, Stack, Callbacks, Opts);
|
||||
value(<<$f/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fa(Rest, Stack, Callbacks, Opts);
|
||||
value(<<$n/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
nu(Rest, Stack, Callbacks, Opts);
|
||||
value(<<?negative/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
negative(Rest, Stack, Callbacks, Opts, "-");
|
||||
value(<<?zero/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0");
|
||||
value(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S]);
|
||||
value(<<?solidus/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> value(Resume, Stack, Callbacks, Opts) end);
|
||||
value(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
value(Rest, Stack, Callbacks, Opts);
|
||||
value(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> value(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
colon(<<?colon/utf16-big, Rest/binary>>, [key|Stack], Callbacks, Opts) ->
|
||||
value(Rest, [object|Stack], Callbacks, Opts);
|
||||
colon(<<?solidus/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> colon(Resume, Stack, Callbacks, Opts) end);
|
||||
colon(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
colon(Rest, Stack, Callbacks, Opts);
|
||||
colon(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> colon(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
key(<<?quote/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
key(<<?solidus/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> key(Resume, Stack, Callbacks, Opts) end);
|
||||
key(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
key(Rest, Stack, Callbacks, Opts);
|
||||
key(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> key(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
%% string has an additional parameter, an accumulator (Acc) used to hold the intermediate
|
||||
%% representation of the string being parsed. using a list of integers representing
|
||||
%% unicode codepoints is faster than constructing binaries, many of which will be
|
||||
%% converted back to lists by the user anyways.
|
||||
|
||||
string(<<?quote/utf16-big, Rest/binary>>, [key|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
colon(Rest, Stack, callback({key, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
string(<<?quote/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback({string, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
string(<<?rsolidus/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
escape(Rest, Stack, Callbacks, Opts, Acc);
|
||||
string(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_noncontrol(S) ->
|
||||
string(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
string(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> string(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
%% 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"/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\b" ++ Acc);
|
||||
escape(<<"f"/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\f" ++ Acc);
|
||||
escape(<<"n"/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\n" ++ Acc);
|
||||
escape(<<"r"/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\r" ++ Acc);
|
||||
escape(<<"t"/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\t" ++ Acc);
|
||||
escape(<<"u"/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
escaped_unicode(Rest, Stack, Callbacks, Opts, Acc, []);
|
||||
escape(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc)
|
||||
when S =:= ?quote; S =:= ?solidus; S =:= ?rsolidus ->
|
||||
string(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
escape(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> escape(Stream, Stack, Callbacks, Opts, Acc) 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 16 bit integer value (this is where json's spec gets
|
||||
%% insane). any other option and the sequence is converted back to an erlang string
|
||||
%% and appended to the string in place.
|
||||
|
||||
escaped_unicode(<<D/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, String, [C, B, A]) ->
|
||||
X = erlang:list_to_integer([A, B, C, D], 16),
|
||||
case Opts#opts.escaped_unicode of
|
||||
ascii when X < 16#0080 ->
|
||||
string(Rest, Stack, Callbacks, Opts, [X] ++ String)
|
||||
; codepoint ->
|
||||
string(Rest, Stack, Callbacks, Opts, [X] ++ String)
|
||||
; _ ->
|
||||
string(Rest, Stack, Callbacks, Opts, [?rsolidus, $u, A, B, C, D] ++ String)
|
||||
end;
|
||||
escaped_unicode(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, String, Acc) when ?is_hex(S) ->
|
||||
escaped_unicode(Rest, Stack, Callbacks, Opts, String, [S] ++ Acc);
|
||||
escaped_unicode(<<>>, Stack, Callbacks, Opts, String, Acc) ->
|
||||
fun(Stream) -> escaped_unicode(Stream, Stack, Callbacks, Opts, String, Acc) end.
|
||||
|
||||
|
||||
%% like strings, numbers are collected in an intermediate accumulator before
|
||||
%% being emitted to the callback handler. no processing of numbers is done in
|
||||
%% process, it's left for the user, though there are convenience functions to
|
||||
%% convert them into erlang floats/integers in jsx_utils.erl.
|
||||
|
||||
%% TODO: actually write that jsx_utils.erl module mentioned above...
|
||||
|
||||
negative(<<"0"/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0" ++ Acc);
|
||||
negative(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
negative(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> negative(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
zero(<<?end_object/utf16-big, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
zero(<<?end_array/utf16-big, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
zero(<<?comma/utf16-big, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
zero(<<?comma/utf16-big, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
zero(<<?decimalpoint/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fraction(Rest, Stack, Callbacks, Opts, [?decimalpoint] ++ Acc);
|
||||
zero(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
zero(<<?solidus/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> zero(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
zero(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
zero(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> zero(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
integer(<<?end_object/utf16-big, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
integer(<<?end_array/utf16-big, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
integer(<<?comma/utf16-big, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
integer(<<?comma/utf16-big, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
integer(<<?decimalpoint/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fraction(Rest, Stack, Callbacks, Opts, [?decimalpoint] ++ Acc);
|
||||
integer(<<?zero/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [?zero] ++ Acc);
|
||||
integer(<<"e"/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e" ++ Acc);
|
||||
integer(<<"E"/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e" ++ Acc);
|
||||
integer(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
integer(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
integer(<<?solidus/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> integer(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
integer(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
integer(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> integer(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
fraction(<<?end_object/utf16-big, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
fraction(<<?end_array/utf16-big, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
fraction(<<?comma/utf16-big, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
fraction(<<?comma/utf16-big, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
fraction(<<?zero/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fraction(Rest, Stack, Callbacks, Opts, [?zero] ++ Acc);
|
||||
fraction(<<"e"/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e" ++ Acc);
|
||||
fraction(<<"E"/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e" ++ Acc);
|
||||
fraction(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
fraction(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
fraction(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
fraction(<<?solidus/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> fraction(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
fraction(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
fraction(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> fraction(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
e(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when S =:= ?positive; S =:= ?negative ->
|
||||
ex(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
e(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when S =:= ?zero; ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
e(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> e(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
ex(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when S =:= ?zero; ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
ex(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> ex(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
exp(<<?end_object/utf16-big, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
exp(<<?end_array/utf16-big, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
exp(<<?comma/utf16-big, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
exp(<<?comma/utf16-big, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
exp(<<?zero/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [?zero] ++ Acc);
|
||||
exp(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
exp(<<S/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
exp(<<?rsolidus/utf16-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> exp(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
exp(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
exp(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> exp(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
tr(<<"r"/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
tru(Rest, Stack, Callbacks, Opts);
|
||||
tr(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> tr(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
tru(<<"u"/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
true(Rest, Stack, Callbacks, Opts);
|
||||
tru(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> tru(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
true(<<"e"/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback({literal, true}, Callbacks), Opts);
|
||||
true(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> true(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
fa(<<"a"/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fal(Rest, Stack, Callbacks, Opts);
|
||||
fa(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> fa(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
fal(<<"l"/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fals(Rest, Stack, Callbacks, Opts);
|
||||
fal(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> fal(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
fals(<<"s"/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
false(Rest, Stack, Callbacks, Opts);
|
||||
fals(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> fals(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
false(<<"e"/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback({literal, false}, Callbacks), Opts);
|
||||
false(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> false(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
nu(<<"u"/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
nul(Rest, Stack, Callbacks, Opts);
|
||||
nu(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> nu(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
nul(<<"l"/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
null(Rest, Stack, Callbacks, Opts);
|
||||
nul(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> nul(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
null(<<"l"/utf16-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback({literal, null}, Callbacks), Opts);
|
||||
null(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> null(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
%% comments are c style, /* blah blah */ and are STRONGLY discouraged. any unicode
|
||||
%% character is valid in a comment, except, obviously the */ sequence which ends
|
||||
%% the comment. they're implemented as a closure called when the comment ends that
|
||||
%% returns execution to the point where the comment began. comments are not
|
||||
%% recorded in any way, simply parsed.
|
||||
|
||||
maybe_comment(<<?star/utf16-big, Rest/binary>>, Resume) ->
|
||||
comment(Rest, Resume);
|
||||
maybe_comment(<<>>, Resume) ->
|
||||
fun(Stream) -> maybe_comment(Stream, Resume) end.
|
||||
|
||||
|
||||
comment(<<?star/utf16-big, Rest/binary>>, Resume) ->
|
||||
maybe_comment_done(Rest, Resume);
|
||||
comment(<<_/utf16-big, Rest/binary>>, Resume) ->
|
||||
comment(Rest, Resume);
|
||||
comment(<<>>, Resume) ->
|
||||
fun(Stream) -> comment(Stream, Resume) end.
|
||||
|
||||
|
||||
maybe_comment_done(<<?solidus/utf16-big, Rest/binary>>, Resume) ->
|
||||
Resume(Rest);
|
||||
maybe_comment_done(<<>>, Resume) ->
|
||||
fun(Stream) -> maybe_comment_done(Stream, Resume) end.
|
||||
|
||||
|
||||
%% helper function for dispatching of parser events
|
||||
|
||||
callback(eof, {none, Callbacks}) ->
|
||||
lists:reverse(Callbacks);
|
||||
callback(Event, {none, Callbacks}) ->
|
||||
{none, [Event] ++ Callbacks};
|
||||
callback(Event, {Mod, State}) when is_atom(Mod) ->
|
||||
{Mod, Mod:jsx_event(Event, State)};
|
||||
callback(Event, {F, State}) when is_function(F) ->
|
||||
{F, F(Event, State)}.
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
|
@ -1,436 +0,0 @@
|
|||
-module(jsx_utf16l).
|
||||
|
||||
-export([start/4]).
|
||||
|
||||
-include("jsx_common.hrl").
|
||||
|
||||
|
||||
%% this code is mostly autogenerated and mostly ugly. apologies. for more insight on
|
||||
%% Callbacks or Opts, see the comments accompanying decoder/2 (in jsx.erl). Stack
|
||||
%% is a stack of flags used to track depth and to keep track of whether we are
|
||||
%% returning from a value or a key inside objects. all pops, peeks and pushes are
|
||||
%% inlined. the code that handles naked values and comments is not optimized by the
|
||||
%% compiler for efficient matching, but you shouldn't be using naked values or comments
|
||||
%% anyways, they are horrible and contrary to the spec.
|
||||
|
||||
start(<<?start_object/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
object(Rest, [key|Stack], callback(start_object, Callbacks), Opts);
|
||||
start(<<?start_array/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
array(Rest, [array|Stack], callback(start_array, Callbacks), Opts);
|
||||
start(<<?quote/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
start(<<$t/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
tr(Rest, Stack, Callbacks, Opts);
|
||||
start(<<$f/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
fa(Rest, Stack, Callbacks, Opts);
|
||||
start(<<$n/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
nu(Rest, Stack, Callbacks, Opts);
|
||||
start(<<?negative/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
negative(Rest, Stack, Callbacks, Opts, "-");
|
||||
start(<<?zero/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0");
|
||||
start(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) when ?is_nonzero(S), Opts#opts.naked_values == true ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S]);
|
||||
start(<<?solidus/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> start(Resume, Stack, Callbacks, Opts) end);
|
||||
start(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
start(Rest, Stack, Callbacks, Opts);
|
||||
start(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> start(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
maybe_done(<<?end_object/utf16-little, Rest/binary>>, [object|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, Callbacks), Opts);
|
||||
maybe_done(<<?end_array/utf16-little, Rest/binary>>, [array|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, Callbacks), Opts);
|
||||
maybe_done(<<?comma/utf16-little, Rest/binary>>, [object|Stack], Callbacks, Opts) ->
|
||||
key(Rest, [key|Stack], Callbacks, Opts);
|
||||
maybe_done(<<?comma/utf16-little, Rest/binary>>, [array|_] = Stack, Callbacks, Opts) ->
|
||||
value(Rest, Stack, Callbacks, Opts);
|
||||
maybe_done(<<?solidus/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> maybe_done(Resume, Stack, Callbacks, Opts) end);
|
||||
maybe_done(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, Callbacks, Opts);
|
||||
maybe_done(<<>>, [], Callbacks, _Opts) ->
|
||||
callback(eof, Callbacks);
|
||||
maybe_done(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> maybe_done(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
object(<<?end_object/utf16-little, Rest/binary>>, [key|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, Callbacks), Opts);
|
||||
object(<<?quote/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
object(<<?solidus/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> object(Resume, Stack, Callbacks, Opts) end);
|
||||
object(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
object(Rest, Stack, Callbacks, Opts);
|
||||
object(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> object(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
array(<<?quote/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
array(<<?start_object/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
object(Rest, [key|Stack], callback(start_object, Callbacks), Opts);
|
||||
array(<<?start_array/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
array(Rest, [array|Stack], callback(start_array, Callbacks), Opts);
|
||||
array(<<?end_array/utf16-little, Rest/binary>>, [array|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, Callbacks), Opts);
|
||||
array(<<$t/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
tr(Rest, Stack, Callbacks, Opts);
|
||||
array(<<$f/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fa(Rest, Stack, Callbacks, Opts);
|
||||
array(<<$n/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
nu(Rest, Stack, Callbacks, Opts);
|
||||
array(<<?negative/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
negative(Rest, Stack, Callbacks, Opts, "-");
|
||||
array(<<?zero/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0");
|
||||
array(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S]);
|
||||
array(<<?solidus/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> array(Resume, Stack, Callbacks, Opts) end);
|
||||
array(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
array(Rest, Stack, Callbacks, Opts);
|
||||
array(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> array(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
value(<<?quote/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
value(<<?start_object/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
object(Rest, [key|Stack], callback(start_object, Callbacks), Opts);
|
||||
value(<<?start_array/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
array(Rest, [array|Stack], callback(start_array, Callbacks), Opts);
|
||||
value(<<$t/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
tr(Rest, Stack, Callbacks, Opts);
|
||||
value(<<$f/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fa(Rest, Stack, Callbacks, Opts);
|
||||
value(<<$n/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
nu(Rest, Stack, Callbacks, Opts);
|
||||
value(<<?negative/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
negative(Rest, Stack, Callbacks, Opts, "-");
|
||||
value(<<?zero/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0");
|
||||
value(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S]);
|
||||
value(<<?solidus/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> value(Resume, Stack, Callbacks, Opts) end);
|
||||
value(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
value(Rest, Stack, Callbacks, Opts);
|
||||
value(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> value(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
colon(<<?colon/utf16-little, Rest/binary>>, [key|Stack], Callbacks, Opts) ->
|
||||
value(Rest, [object|Stack], Callbacks, Opts);
|
||||
colon(<<?solidus/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> colon(Resume, Stack, Callbacks, Opts) end);
|
||||
colon(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
colon(Rest, Stack, Callbacks, Opts);
|
||||
colon(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> colon(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
key(<<?quote/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
key(<<?solidus/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> key(Resume, Stack, Callbacks, Opts) end);
|
||||
key(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
key(Rest, Stack, Callbacks, Opts);
|
||||
key(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> key(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
%% string has an additional parameter, an accumulator (Acc) used to hold the intermediate
|
||||
%% representation of the string being parsed. using a list of integers representing
|
||||
%% unicode codepoints is faster than constructing binaries, many of which will be
|
||||
%% converted back to lists by the user anyways.
|
||||
|
||||
string(<<?quote/utf16-little, Rest/binary>>, [key|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
colon(Rest, Stack, callback({key, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
string(<<?quote/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback({string, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
string(<<?rsolidus/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
escape(Rest, Stack, Callbacks, Opts, Acc);
|
||||
string(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_noncontrol(S) ->
|
||||
string(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
string(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> string(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
%% 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"/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\b" ++ Acc);
|
||||
escape(<<"f"/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\f" ++ Acc);
|
||||
escape(<<"n"/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\n" ++ Acc);
|
||||
escape(<<"r"/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\r" ++ Acc);
|
||||
escape(<<"t"/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\t" ++ Acc);
|
||||
escape(<<"u"/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
escaped_unicode(Rest, Stack, Callbacks, Opts, Acc, []);
|
||||
escape(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc)
|
||||
when S =:= ?quote; S =:= ?solidus; S =:= ?rsolidus ->
|
||||
string(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
escape(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> escape(Stream, Stack, Callbacks, Opts, Acc) 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 16 bit integer value (this is where json's spec gets
|
||||
%% insane). any other option and the sequence is converted back to an erlang string
|
||||
%% and appended to the string in place.
|
||||
|
||||
escaped_unicode(<<D/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, String, [C, B, A]) ->
|
||||
X = erlang:list_to_integer([A, B, C, D], 16),
|
||||
case Opts#opts.escaped_unicode of
|
||||
ascii when X < 16#0080 ->
|
||||
string(Rest, Stack, Callbacks, Opts, [X] ++ String)
|
||||
; codepoint ->
|
||||
string(Rest, Stack, Callbacks, Opts, [X] ++ String)
|
||||
; _ ->
|
||||
string(Rest, Stack, Callbacks, Opts, [?rsolidus, $u, A, B, C, D] ++ String)
|
||||
end;
|
||||
escaped_unicode(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, String, Acc) when ?is_hex(S) ->
|
||||
escaped_unicode(Rest, Stack, Callbacks, Opts, String, [S] ++ Acc);
|
||||
escaped_unicode(<<>>, Stack, Callbacks, Opts, String, Acc) ->
|
||||
fun(Stream) -> escaped_unicode(Stream, Stack, Callbacks, Opts, String, Acc) end.
|
||||
|
||||
|
||||
%% like strings, numbers are collected in an intermediate accumulator before
|
||||
%% being emitted to the callback handler. no processing of numbers is done in
|
||||
%% process, it's left for the user, though there are convenience functions to
|
||||
%% convert them into erlang floats/integers in jsx_utils.erl.
|
||||
|
||||
%% TODO: actually write that jsx_utils.erl module mentioned above...
|
||||
|
||||
negative(<<"0"/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0" ++ Acc);
|
||||
negative(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
negative(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> negative(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
zero(<<?end_object/utf16-little, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
zero(<<?end_array/utf16-little, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
zero(<<?comma/utf16-little, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
zero(<<?comma/utf16-little, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
zero(<<?decimalpoint/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fraction(Rest, Stack, Callbacks, Opts, [?decimalpoint] ++ Acc);
|
||||
zero(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
zero(<<?solidus/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> zero(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
zero(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
zero(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> zero(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
integer(<<?end_object/utf16-little, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
integer(<<?end_array/utf16-little, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
integer(<<?comma/utf16-little, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
integer(<<?comma/utf16-little, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
integer(<<?decimalpoint/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fraction(Rest, Stack, Callbacks, Opts, [?decimalpoint] ++ Acc);
|
||||
integer(<<?zero/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [?zero] ++ Acc);
|
||||
integer(<<"e"/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e" ++ Acc);
|
||||
integer(<<"E"/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e" ++ Acc);
|
||||
integer(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
integer(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
integer(<<?solidus/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> integer(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
integer(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
integer(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> integer(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
fraction(<<?end_object/utf16-little, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
fraction(<<?end_array/utf16-little, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
fraction(<<?comma/utf16-little, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
fraction(<<?comma/utf16-little, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
fraction(<<?zero/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fraction(Rest, Stack, Callbacks, Opts, [?zero] ++ Acc);
|
||||
fraction(<<"e"/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e" ++ Acc);
|
||||
fraction(<<"E"/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e" ++ Acc);
|
||||
fraction(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
fraction(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
fraction(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
fraction(<<?solidus/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> fraction(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
fraction(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
fraction(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> fraction(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
e(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when S =:= ?positive; S =:= ?negative ->
|
||||
ex(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
e(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when S =:= ?zero; ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
e(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> e(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
ex(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when S =:= ?zero; ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
ex(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> ex(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
exp(<<?end_object/utf16-little, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
exp(<<?end_array/utf16-little, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
exp(<<?comma/utf16-little, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
exp(<<?comma/utf16-little, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
exp(<<?zero/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [?zero] ++ Acc);
|
||||
exp(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
exp(<<S/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
exp(<<?rsolidus/utf16-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> exp(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
exp(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
exp(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> exp(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
tr(<<"r"/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
tru(Rest, Stack, Callbacks, Opts);
|
||||
tr(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> tr(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
tru(<<"u"/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
true(Rest, Stack, Callbacks, Opts);
|
||||
tru(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> tru(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
true(<<"e"/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback({literal, true}, Callbacks), Opts);
|
||||
true(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> true(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
fa(<<"a"/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fal(Rest, Stack, Callbacks, Opts);
|
||||
fa(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> fa(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
fal(<<"l"/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fals(Rest, Stack, Callbacks, Opts);
|
||||
fal(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> fal(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
fals(<<"s"/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
false(Rest, Stack, Callbacks, Opts);
|
||||
fals(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> fals(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
false(<<"e"/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback({literal, false}, Callbacks), Opts);
|
||||
false(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> false(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
nu(<<"u"/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
nul(Rest, Stack, Callbacks, Opts);
|
||||
nu(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> nu(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
nul(<<"l"/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
null(Rest, Stack, Callbacks, Opts);
|
||||
nul(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> nul(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
null(<<"l"/utf16-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback({literal, null}, Callbacks), Opts);
|
||||
null(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> null(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
%% comments are c style, /* blah blah */ and are STRONGLY discouraged. any unicode
|
||||
%% character is valid in a comment, except, obviously the */ sequence which ends
|
||||
%% the comment. they're implemented as a closure called when the comment ends that
|
||||
%% returns execution to the point where the comment began. comments are not
|
||||
%% recorded in any way, simply parsed.
|
||||
|
||||
maybe_comment(<<?star/utf16-little, Rest/binary>>, Resume) ->
|
||||
comment(Rest, Resume);
|
||||
maybe_comment(<<>>, Resume) ->
|
||||
fun(Stream) -> maybe_comment(Stream, Resume) end.
|
||||
|
||||
|
||||
comment(<<?star/utf16-little, Rest/binary>>, Resume) ->
|
||||
maybe_comment_done(Rest, Resume);
|
||||
comment(<<_/utf16-little, Rest/binary>>, Resume) ->
|
||||
comment(Rest, Resume);
|
||||
comment(<<>>, Resume) ->
|
||||
fun(Stream) -> comment(Stream, Resume) end.
|
||||
|
||||
|
||||
maybe_comment_done(<<?solidus/utf16-little, Rest/binary>>, Resume) ->
|
||||
Resume(Rest);
|
||||
maybe_comment_done(<<>>, Resume) ->
|
||||
fun(Stream) -> maybe_comment_done(Stream, Resume) end.
|
||||
|
||||
|
||||
%% helper function for dispatching of parser events
|
||||
|
||||
callback(eof, {none, Callbacks}) ->
|
||||
lists:reverse(Callbacks);
|
||||
callback(Event, {none, Callbacks}) ->
|
||||
{none, [Event] ++ Callbacks};
|
||||
callback(Event, {Mod, State}) when is_atom(Mod) ->
|
||||
{Mod, Mod:jsx_event(Event, State)};
|
||||
callback(Event, {F, State}) when is_function(F) ->
|
||||
{F, F(Event, State)}.
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
|
@ -1,436 +0,0 @@
|
|||
-module(jsx_utf32b).
|
||||
|
||||
-export([start/4]).
|
||||
|
||||
-include("jsx_common.hrl").
|
||||
|
||||
|
||||
%% this code is mostly autogenerated and mostly ugly. apologies. for more insight on
|
||||
%% Callbacks or Opts, see the comments accompanying decoder/2 (in jsx.erl). Stack
|
||||
%% is a stack of flags used to track depth and to keep track of whether we are
|
||||
%% returning from a value or a key inside objects. all pops, peeks and pushes are
|
||||
%% inlined. the code that handles naked values and comments is not optimized by the
|
||||
%% compiler for efficient matching, but you shouldn't be using naked values or comments
|
||||
%% anyways, they are horrible and contrary to the spec.
|
||||
|
||||
start(<<?start_object/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
object(Rest, [key|Stack], callback(start_object, Callbacks), Opts);
|
||||
start(<<?start_array/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
array(Rest, [array|Stack], callback(start_array, Callbacks), Opts);
|
||||
start(<<?quote/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
start(<<$t/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
tr(Rest, Stack, Callbacks, Opts);
|
||||
start(<<$f/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
fa(Rest, Stack, Callbacks, Opts);
|
||||
start(<<$n/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
nu(Rest, Stack, Callbacks, Opts);
|
||||
start(<<?negative/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
negative(Rest, Stack, Callbacks, Opts, "-");
|
||||
start(<<?zero/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0");
|
||||
start(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) when ?is_nonzero(S), Opts#opts.naked_values == true ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S]);
|
||||
start(<<?solidus/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> start(Resume, Stack, Callbacks, Opts) end);
|
||||
start(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
start(Rest, Stack, Callbacks, Opts);
|
||||
start(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> start(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
maybe_done(<<?end_object/utf32-big, Rest/binary>>, [object|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, Callbacks), Opts);
|
||||
maybe_done(<<?end_array/utf32-big, Rest/binary>>, [array|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, Callbacks), Opts);
|
||||
maybe_done(<<?comma/utf32-big, Rest/binary>>, [object|Stack], Callbacks, Opts) ->
|
||||
key(Rest, [key|Stack], Callbacks, Opts);
|
||||
maybe_done(<<?comma/utf32-big, Rest/binary>>, [array|_] = Stack, Callbacks, Opts) ->
|
||||
value(Rest, Stack, Callbacks, Opts);
|
||||
maybe_done(<<?solidus/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> maybe_done(Resume, Stack, Callbacks, Opts) end);
|
||||
maybe_done(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, Callbacks, Opts);
|
||||
maybe_done(<<>>, [], Callbacks, _Opts) ->
|
||||
callback(eof, Callbacks);
|
||||
maybe_done(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> maybe_done(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
object(<<?end_object/utf32-big, Rest/binary>>, [key|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, Callbacks), Opts);
|
||||
object(<<?quote/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
object(<<?solidus/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> object(Resume, Stack, Callbacks, Opts) end);
|
||||
object(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
object(Rest, Stack, Callbacks, Opts);
|
||||
object(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> object(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
array(<<?quote/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
array(<<?start_object/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
object(Rest, [key|Stack], callback(start_object, Callbacks), Opts);
|
||||
array(<<?start_array/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
array(Rest, [array|Stack], callback(start_array, Callbacks), Opts);
|
||||
array(<<?end_array/utf32-big, Rest/binary>>, [array|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, Callbacks), Opts);
|
||||
array(<<$t/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
tr(Rest, Stack, Callbacks, Opts);
|
||||
array(<<$f/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fa(Rest, Stack, Callbacks, Opts);
|
||||
array(<<$n/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
nu(Rest, Stack, Callbacks, Opts);
|
||||
array(<<?negative/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
negative(Rest, Stack, Callbacks, Opts, "-");
|
||||
array(<<?zero/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0");
|
||||
array(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S]);
|
||||
array(<<?solidus/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> array(Resume, Stack, Callbacks, Opts) end);
|
||||
array(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
array(Rest, Stack, Callbacks, Opts);
|
||||
array(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> array(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
value(<<?quote/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
value(<<?start_object/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
object(Rest, [key|Stack], callback(start_object, Callbacks), Opts);
|
||||
value(<<?start_array/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
array(Rest, [array|Stack], callback(start_array, Callbacks), Opts);
|
||||
value(<<$t/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
tr(Rest, Stack, Callbacks, Opts);
|
||||
value(<<$f/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fa(Rest, Stack, Callbacks, Opts);
|
||||
value(<<$n/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
nu(Rest, Stack, Callbacks, Opts);
|
||||
value(<<?negative/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
negative(Rest, Stack, Callbacks, Opts, "-");
|
||||
value(<<?zero/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0");
|
||||
value(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S]);
|
||||
value(<<?solidus/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> value(Resume, Stack, Callbacks, Opts) end);
|
||||
value(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
value(Rest, Stack, Callbacks, Opts);
|
||||
value(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> value(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
colon(<<?colon/utf32-big, Rest/binary>>, [key|Stack], Callbacks, Opts) ->
|
||||
value(Rest, [object|Stack], Callbacks, Opts);
|
||||
colon(<<?solidus/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> colon(Resume, Stack, Callbacks, Opts) end);
|
||||
colon(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
colon(Rest, Stack, Callbacks, Opts);
|
||||
colon(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> colon(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
key(<<?quote/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
key(<<?solidus/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> key(Resume, Stack, Callbacks, Opts) end);
|
||||
key(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
key(Rest, Stack, Callbacks, Opts);
|
||||
key(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> key(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
%% string has an additional parameter, an accumulator (Acc) used to hold the intermediate
|
||||
%% representation of the string being parsed. using a list of integers representing
|
||||
%% unicode codepoints is faster than constructing binaries, many of which will be
|
||||
%% converted back to lists by the user anyways.
|
||||
|
||||
string(<<?quote/utf32-big, Rest/binary>>, [key|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
colon(Rest, Stack, callback({key, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
string(<<?quote/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback({string, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
string(<<?rsolidus/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
escape(Rest, Stack, Callbacks, Opts, Acc);
|
||||
string(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_noncontrol(S) ->
|
||||
string(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
string(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> string(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
%% 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"/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\b" ++ Acc);
|
||||
escape(<<"f"/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\f" ++ Acc);
|
||||
escape(<<"n"/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\n" ++ Acc);
|
||||
escape(<<"r"/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\r" ++ Acc);
|
||||
escape(<<"t"/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\t" ++ Acc);
|
||||
escape(<<"u"/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
escaped_unicode(Rest, Stack, Callbacks, Opts, Acc, []);
|
||||
escape(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc)
|
||||
when S =:= ?quote; S =:= ?solidus; S =:= ?rsolidus ->
|
||||
string(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
escape(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> escape(Stream, Stack, Callbacks, Opts, Acc) 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 16 bit integer value (this is where json's spec gets
|
||||
%% insane). any other option and the sequence is converted back to an erlang string
|
||||
%% and appended to the string in place.
|
||||
|
||||
escaped_unicode(<<D/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, String, [C, B, A]) ->
|
||||
X = erlang:list_to_integer([A, B, C, D], 16),
|
||||
case Opts#opts.escaped_unicode of
|
||||
ascii when X < 16#0080 ->
|
||||
string(Rest, Stack, Callbacks, Opts, [X] ++ String)
|
||||
; codepoint ->
|
||||
string(Rest, Stack, Callbacks, Opts, [X] ++ String)
|
||||
; _ ->
|
||||
string(Rest, Stack, Callbacks, Opts, [?rsolidus, $u, A, B, C, D] ++ String)
|
||||
end;
|
||||
escaped_unicode(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, String, Acc) when ?is_hex(S) ->
|
||||
escaped_unicode(Rest, Stack, Callbacks, Opts, String, [S] ++ Acc);
|
||||
escaped_unicode(<<>>, Stack, Callbacks, Opts, String, Acc) ->
|
||||
fun(Stream) -> escaped_unicode(Stream, Stack, Callbacks, Opts, String, Acc) end.
|
||||
|
||||
|
||||
%% like strings, numbers are collected in an intermediate accumulator before
|
||||
%% being emitted to the callback handler. no processing of numbers is done in
|
||||
%% process, it's left for the user, though there are convenience functions to
|
||||
%% convert them into erlang floats/integers in jsx_utils.erl.
|
||||
|
||||
%% TODO: actually write that jsx_utils.erl module mentioned above...
|
||||
|
||||
negative(<<"0"/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0" ++ Acc);
|
||||
negative(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
negative(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> negative(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
zero(<<?end_object/utf32-big, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
zero(<<?end_array/utf32-big, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
zero(<<?comma/utf32-big, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
zero(<<?comma/utf32-big, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
zero(<<?decimalpoint/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fraction(Rest, Stack, Callbacks, Opts, [?decimalpoint] ++ Acc);
|
||||
zero(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
zero(<<?solidus/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> zero(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
zero(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
zero(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> zero(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
integer(<<?end_object/utf32-big, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
integer(<<?end_array/utf32-big, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
integer(<<?comma/utf32-big, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
integer(<<?comma/utf32-big, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
integer(<<?decimalpoint/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fraction(Rest, Stack, Callbacks, Opts, [?decimalpoint] ++ Acc);
|
||||
integer(<<?zero/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [?zero] ++ Acc);
|
||||
integer(<<"e"/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e" ++ Acc);
|
||||
integer(<<"E"/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e" ++ Acc);
|
||||
integer(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
integer(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
integer(<<?solidus/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> integer(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
integer(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
integer(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> integer(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
fraction(<<?end_object/utf32-big, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
fraction(<<?end_array/utf32-big, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
fraction(<<?comma/utf32-big, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
fraction(<<?comma/utf32-big, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
fraction(<<?zero/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fraction(Rest, Stack, Callbacks, Opts, [?zero] ++ Acc);
|
||||
fraction(<<"e"/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e" ++ Acc);
|
||||
fraction(<<"E"/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e" ++ Acc);
|
||||
fraction(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
fraction(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
fraction(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
fraction(<<?solidus/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> fraction(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
fraction(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
fraction(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> fraction(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
e(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when S =:= ?positive; S =:= ?negative ->
|
||||
ex(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
e(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when S =:= ?zero; ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
e(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> e(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
ex(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when S =:= ?zero; ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
ex(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> ex(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
exp(<<?end_object/utf32-big, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
exp(<<?end_array/utf32-big, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
exp(<<?comma/utf32-big, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
exp(<<?comma/utf32-big, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
exp(<<?zero/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [?zero] ++ Acc);
|
||||
exp(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
exp(<<S/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
exp(<<?rsolidus/utf32-big, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> exp(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
exp(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
exp(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> exp(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
tr(<<"r"/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
tru(Rest, Stack, Callbacks, Opts);
|
||||
tr(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> tr(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
tru(<<"u"/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
true(Rest, Stack, Callbacks, Opts);
|
||||
tru(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> tru(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
true(<<"e"/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback({literal, true}, Callbacks), Opts);
|
||||
true(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> true(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
fa(<<"a"/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fal(Rest, Stack, Callbacks, Opts);
|
||||
fa(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> fa(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
fal(<<"l"/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fals(Rest, Stack, Callbacks, Opts);
|
||||
fal(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> fal(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
fals(<<"s"/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
false(Rest, Stack, Callbacks, Opts);
|
||||
fals(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> fals(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
false(<<"e"/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback({literal, false}, Callbacks), Opts);
|
||||
false(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> false(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
nu(<<"u"/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
nul(Rest, Stack, Callbacks, Opts);
|
||||
nu(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> nu(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
nul(<<"l"/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
null(Rest, Stack, Callbacks, Opts);
|
||||
nul(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> nul(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
null(<<"l"/utf32-big, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback({literal, null}, Callbacks), Opts);
|
||||
null(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> null(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
%% comments are c style, /* blah blah */ and are STRONGLY discouraged. any unicode
|
||||
%% character is valid in a comment, except, obviously the */ sequence which ends
|
||||
%% the comment. they're implemented as a closure called when the comment ends that
|
||||
%% returns execution to the point where the comment began. comments are not
|
||||
%% recorded in any way, simply parsed.
|
||||
|
||||
maybe_comment(<<?star/utf32-big, Rest/binary>>, Resume) ->
|
||||
comment(Rest, Resume);
|
||||
maybe_comment(<<>>, Resume) ->
|
||||
fun(Stream) -> maybe_comment(Stream, Resume) end.
|
||||
|
||||
|
||||
comment(<<?star/utf32-big, Rest/binary>>, Resume) ->
|
||||
maybe_comment_done(Rest, Resume);
|
||||
comment(<<_/utf32-big, Rest/binary>>, Resume) ->
|
||||
comment(Rest, Resume);
|
||||
comment(<<>>, Resume) ->
|
||||
fun(Stream) -> comment(Stream, Resume) end.
|
||||
|
||||
|
||||
maybe_comment_done(<<?solidus/utf32-big, Rest/binary>>, Resume) ->
|
||||
Resume(Rest);
|
||||
maybe_comment_done(<<>>, Resume) ->
|
||||
fun(Stream) -> maybe_comment_done(Stream, Resume) end.
|
||||
|
||||
|
||||
%% helper function for dispatching of parser events
|
||||
|
||||
callback(eof, {none, Callbacks}) ->
|
||||
lists:reverse(Callbacks);
|
||||
callback(Event, {none, Callbacks}) ->
|
||||
{none, [Event] ++ Callbacks};
|
||||
callback(Event, {Mod, State}) when is_atom(Mod) ->
|
||||
{Mod, Mod:jsx_event(Event, State)};
|
||||
callback(Event, {F, State}) when is_function(F) ->
|
||||
{F, F(Event, State)}.
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
|
@ -1,436 +0,0 @@
|
|||
-module(jsx_utf32l).
|
||||
|
||||
-export([start/4]).
|
||||
|
||||
-include("jsx_common.hrl").
|
||||
|
||||
|
||||
%% this code is mostly autogenerated and mostly ugly. apologies. for more insight on
|
||||
%% Callbacks or Opts, see the comments accompanying decoder/2 (in jsx.erl). Stack
|
||||
%% is a stack of flags used to track depth and to keep track of whether we are
|
||||
%% returning from a value or a key inside objects. all pops, peeks and pushes are
|
||||
%% inlined. the code that handles naked values and comments is not optimized by the
|
||||
%% compiler for efficient matching, but you shouldn't be using naked values or comments
|
||||
%% anyways, they are horrible and contrary to the spec.
|
||||
|
||||
start(<<?start_object/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
object(Rest, [key|Stack], callback(start_object, Callbacks), Opts);
|
||||
start(<<?start_array/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
array(Rest, [array|Stack], callback(start_array, Callbacks), Opts);
|
||||
start(<<?quote/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
start(<<$t/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
tr(Rest, Stack, Callbacks, Opts);
|
||||
start(<<$f/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
fa(Rest, Stack, Callbacks, Opts);
|
||||
start(<<$n/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
nu(Rest, Stack, Callbacks, Opts);
|
||||
start(<<?negative/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
negative(Rest, Stack, Callbacks, Opts, "-");
|
||||
start(<<?zero/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0");
|
||||
start(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) when ?is_nonzero(S), Opts#opts.naked_values == true ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S]);
|
||||
start(<<?solidus/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> start(Resume, Stack, Callbacks, Opts) end);
|
||||
start(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
start(Rest, Stack, Callbacks, Opts);
|
||||
start(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> start(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
maybe_done(<<?end_object/utf32-little, Rest/binary>>, [object|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, Callbacks), Opts);
|
||||
maybe_done(<<?end_array/utf32-little, Rest/binary>>, [array|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, Callbacks), Opts);
|
||||
maybe_done(<<?comma/utf32-little, Rest/binary>>, [object|Stack], Callbacks, Opts) ->
|
||||
key(Rest, [key|Stack], Callbacks, Opts);
|
||||
maybe_done(<<?comma/utf32-little, Rest/binary>>, [array|_] = Stack, Callbacks, Opts) ->
|
||||
value(Rest, Stack, Callbacks, Opts);
|
||||
maybe_done(<<?solidus/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> maybe_done(Resume, Stack, Callbacks, Opts) end);
|
||||
maybe_done(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, Callbacks, Opts);
|
||||
maybe_done(<<>>, [], Callbacks, _Opts) ->
|
||||
callback(eof, Callbacks);
|
||||
maybe_done(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> maybe_done(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
object(<<?end_object/utf32-little, Rest/binary>>, [key|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, Callbacks), Opts);
|
||||
object(<<?quote/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
object(<<?solidus/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> object(Resume, Stack, Callbacks, Opts) end);
|
||||
object(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
object(Rest, Stack, Callbacks, Opts);
|
||||
object(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> object(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
array(<<?quote/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
array(<<?start_object/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
object(Rest, [key|Stack], callback(start_object, Callbacks), Opts);
|
||||
array(<<?start_array/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
array(Rest, [array|Stack], callback(start_array, Callbacks), Opts);
|
||||
array(<<?end_array/utf32-little, Rest/binary>>, [array|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, Callbacks), Opts);
|
||||
array(<<$t/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
tr(Rest, Stack, Callbacks, Opts);
|
||||
array(<<$f/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fa(Rest, Stack, Callbacks, Opts);
|
||||
array(<<$n/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
nu(Rest, Stack, Callbacks, Opts);
|
||||
array(<<?negative/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
negative(Rest, Stack, Callbacks, Opts, "-");
|
||||
array(<<?zero/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0");
|
||||
array(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S]);
|
||||
array(<<?solidus/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> array(Resume, Stack, Callbacks, Opts) end);
|
||||
array(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
array(Rest, Stack, Callbacks, Opts);
|
||||
array(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> array(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
value(<<?quote/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
value(<<?start_object/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
object(Rest, [key|Stack], callback(start_object, Callbacks), Opts);
|
||||
value(<<?start_array/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
array(Rest, [array|Stack], callback(start_array, Callbacks), Opts);
|
||||
value(<<$t/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
tr(Rest, Stack, Callbacks, Opts);
|
||||
value(<<$f/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fa(Rest, Stack, Callbacks, Opts);
|
||||
value(<<$n/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
nu(Rest, Stack, Callbacks, Opts);
|
||||
value(<<?negative/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
negative(Rest, Stack, Callbacks, Opts, "-");
|
||||
value(<<?zero/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0");
|
||||
value(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S]);
|
||||
value(<<?solidus/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> value(Resume, Stack, Callbacks, Opts) end);
|
||||
value(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
value(Rest, Stack, Callbacks, Opts);
|
||||
value(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> value(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
colon(<<?colon/utf32-little, Rest/binary>>, [key|Stack], Callbacks, Opts) ->
|
||||
value(Rest, [object|Stack], Callbacks, Opts);
|
||||
colon(<<?solidus/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> colon(Resume, Stack, Callbacks, Opts) end);
|
||||
colon(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
colon(Rest, Stack, Callbacks, Opts);
|
||||
colon(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> colon(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
key(<<?quote/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
key(<<?solidus/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> key(Resume, Stack, Callbacks, Opts) end);
|
||||
key(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
key(Rest, Stack, Callbacks, Opts);
|
||||
key(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> key(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
%% string has an additional parameter, an accumulator (Acc) used to hold the intermediate
|
||||
%% representation of the string being parsed. using a list of integers representing
|
||||
%% unicode codepoints is faster than constructing binaries, many of which will be
|
||||
%% converted back to lists by the user anyways.
|
||||
|
||||
string(<<?quote/utf32-little, Rest/binary>>, [key|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
colon(Rest, Stack, callback({key, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
string(<<?quote/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback({string, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
string(<<?rsolidus/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
escape(Rest, Stack, Callbacks, Opts, Acc);
|
||||
string(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_noncontrol(S) ->
|
||||
string(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
string(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> string(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
%% 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"/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\b" ++ Acc);
|
||||
escape(<<"f"/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\f" ++ Acc);
|
||||
escape(<<"n"/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\n" ++ Acc);
|
||||
escape(<<"r"/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\r" ++ Acc);
|
||||
escape(<<"t"/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\t" ++ Acc);
|
||||
escape(<<"u"/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
escaped_unicode(Rest, Stack, Callbacks, Opts, Acc, []);
|
||||
escape(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc)
|
||||
when S =:= ?quote; S =:= ?solidus; S =:= ?rsolidus ->
|
||||
string(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
escape(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> escape(Stream, Stack, Callbacks, Opts, Acc) 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 16 bit integer value (this is where json's spec gets
|
||||
%% insane). any other option and the sequence is converted back to an erlang string
|
||||
%% and appended to the string in place.
|
||||
|
||||
escaped_unicode(<<D/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, String, [C, B, A]) ->
|
||||
X = erlang:list_to_integer([A, B, C, D], 16),
|
||||
case Opts#opts.escaped_unicode of
|
||||
ascii when X < 16#0080 ->
|
||||
string(Rest, Stack, Callbacks, Opts, [X] ++ String)
|
||||
; codepoint ->
|
||||
string(Rest, Stack, Callbacks, Opts, [X] ++ String)
|
||||
; _ ->
|
||||
string(Rest, Stack, Callbacks, Opts, [?rsolidus, $u, A, B, C, D] ++ String)
|
||||
end;
|
||||
escaped_unicode(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, String, Acc) when ?is_hex(S) ->
|
||||
escaped_unicode(Rest, Stack, Callbacks, Opts, String, [S] ++ Acc);
|
||||
escaped_unicode(<<>>, Stack, Callbacks, Opts, String, Acc) ->
|
||||
fun(Stream) -> escaped_unicode(Stream, Stack, Callbacks, Opts, String, Acc) end.
|
||||
|
||||
|
||||
%% like strings, numbers are collected in an intermediate accumulator before
|
||||
%% being emitted to the callback handler. no processing of numbers is done in
|
||||
%% process, it's left for the user, though there are convenience functions to
|
||||
%% convert them into erlang floats/integers in jsx_utils.erl.
|
||||
|
||||
%% TODO: actually write that jsx_utils.erl module mentioned above...
|
||||
|
||||
negative(<<"0"/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0" ++ Acc);
|
||||
negative(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
negative(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> negative(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
zero(<<?end_object/utf32-little, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
zero(<<?end_array/utf32-little, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
zero(<<?comma/utf32-little, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
zero(<<?comma/utf32-little, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
zero(<<?decimalpoint/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fraction(Rest, Stack, Callbacks, Opts, [?decimalpoint] ++ Acc);
|
||||
zero(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
zero(<<?solidus/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> zero(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
zero(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
zero(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> zero(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
integer(<<?end_object/utf32-little, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
integer(<<?end_array/utf32-little, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
integer(<<?comma/utf32-little, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
integer(<<?comma/utf32-little, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
integer(<<?decimalpoint/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fraction(Rest, Stack, Callbacks, Opts, [?decimalpoint] ++ Acc);
|
||||
integer(<<?zero/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [?zero] ++ Acc);
|
||||
integer(<<"e"/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e" ++ Acc);
|
||||
integer(<<"E"/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e" ++ Acc);
|
||||
integer(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
integer(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
integer(<<?solidus/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> integer(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
integer(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
integer(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> integer(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
fraction(<<?end_object/utf32-little, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
fraction(<<?end_array/utf32-little, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
fraction(<<?comma/utf32-little, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
fraction(<<?comma/utf32-little, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
fraction(<<?zero/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fraction(Rest, Stack, Callbacks, Opts, [?zero] ++ Acc);
|
||||
fraction(<<"e"/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e" ++ Acc);
|
||||
fraction(<<"E"/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e" ++ Acc);
|
||||
fraction(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
fraction(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
fraction(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
fraction(<<?solidus/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> fraction(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
fraction(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
fraction(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> fraction(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
e(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when S =:= ?positive; S =:= ?negative ->
|
||||
ex(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
e(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when S =:= ?zero; ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
e(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> e(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
ex(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when S =:= ?zero; ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
ex(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> ex(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
exp(<<?end_object/utf32-little, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
exp(<<?end_array/utf32-little, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
exp(<<?comma/utf32-little, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
exp(<<?comma/utf32-little, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
exp(<<?zero/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [?zero] ++ Acc);
|
||||
exp(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
exp(<<S/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
exp(<<?rsolidus/utf32-little, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> exp(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
exp(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
exp(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> exp(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
tr(<<"r"/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
tru(Rest, Stack, Callbacks, Opts);
|
||||
tr(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> tr(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
tru(<<"u"/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
true(Rest, Stack, Callbacks, Opts);
|
||||
tru(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> tru(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
true(<<"e"/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback({literal, true}, Callbacks), Opts);
|
||||
true(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> true(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
fa(<<"a"/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fal(Rest, Stack, Callbacks, Opts);
|
||||
fa(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> fa(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
fal(<<"l"/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fals(Rest, Stack, Callbacks, Opts);
|
||||
fal(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> fal(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
fals(<<"s"/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
false(Rest, Stack, Callbacks, Opts);
|
||||
fals(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> fals(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
false(<<"e"/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback({literal, false}, Callbacks), Opts);
|
||||
false(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> false(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
nu(<<"u"/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
nul(Rest, Stack, Callbacks, Opts);
|
||||
nu(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> nu(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
nul(<<"l"/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
null(Rest, Stack, Callbacks, Opts);
|
||||
nul(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> nul(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
null(<<"l"/utf32-little, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback({literal, null}, Callbacks), Opts);
|
||||
null(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> null(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
%% comments are c style, /* blah blah */ and are STRONGLY discouraged. any unicode
|
||||
%% character is valid in a comment, except, obviously the */ sequence which ends
|
||||
%% the comment. they're implemented as a closure called when the comment ends that
|
||||
%% returns execution to the point where the comment began. comments are not
|
||||
%% recorded in any way, simply parsed.
|
||||
|
||||
maybe_comment(<<?star/utf32-little, Rest/binary>>, Resume) ->
|
||||
comment(Rest, Resume);
|
||||
maybe_comment(<<>>, Resume) ->
|
||||
fun(Stream) -> maybe_comment(Stream, Resume) end.
|
||||
|
||||
|
||||
comment(<<?star/utf32-little, Rest/binary>>, Resume) ->
|
||||
maybe_comment_done(Rest, Resume);
|
||||
comment(<<_/utf32-little, Rest/binary>>, Resume) ->
|
||||
comment(Rest, Resume);
|
||||
comment(<<>>, Resume) ->
|
||||
fun(Stream) -> comment(Stream, Resume) end.
|
||||
|
||||
|
||||
maybe_comment_done(<<?solidus/utf32-little, Rest/binary>>, Resume) ->
|
||||
Resume(Rest);
|
||||
maybe_comment_done(<<>>, Resume) ->
|
||||
fun(Stream) -> maybe_comment_done(Stream, Resume) end.
|
||||
|
||||
|
||||
%% helper function for dispatching of parser events
|
||||
|
||||
callback(eof, {none, Callbacks}) ->
|
||||
lists:reverse(Callbacks);
|
||||
callback(Event, {none, Callbacks}) ->
|
||||
{none, [Event] ++ Callbacks};
|
||||
callback(Event, {Mod, State}) when is_atom(Mod) ->
|
||||
{Mod, Mod:jsx_event(Event, State)};
|
||||
callback(Event, {F, State}) when is_function(F) ->
|
||||
{F, F(Event, State)}.
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
436
src/jsx_utf8.erl
436
src/jsx_utf8.erl
|
|
@ -1,436 +0,0 @@
|
|||
-module(jsx_utf8).
|
||||
|
||||
-export([start/4]).
|
||||
|
||||
-include("jsx_common.hrl").
|
||||
|
||||
|
||||
%% this code is mostly autogenerated and mostly ugly. apologies. for more insight on
|
||||
%% Callbacks or Opts, see the comments accompanying decoder/2 (in jsx.erl). Stack
|
||||
%% is a stack of flags used to track depth and to keep track of whether we are
|
||||
%% returning from a value or a key inside objects. all pops, peeks and pushes are
|
||||
%% inlined. the code that handles naked values and comments is not optimized by the
|
||||
%% compiler for efficient matching, but you shouldn't be using naked values or comments
|
||||
%% anyways, they are horrible and contrary to the spec.
|
||||
|
||||
start(<<?start_object/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
object(Rest, [key|Stack], callback(start_object, Callbacks), Opts);
|
||||
start(<<?start_array/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
array(Rest, [array|Stack], callback(start_array, Callbacks), Opts);
|
||||
start(<<?quote/utf8, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
start(<<$t/utf8, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
tr(Rest, Stack, Callbacks, Opts);
|
||||
start(<<$f/utf8, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
fa(Rest, Stack, Callbacks, Opts);
|
||||
start(<<$n/utf8, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
nu(Rest, Stack, Callbacks, Opts);
|
||||
start(<<?negative/utf8, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
negative(Rest, Stack, Callbacks, Opts, "-");
|
||||
start(<<?zero/utf8, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.naked_values == true ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0");
|
||||
start(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts) when ?is_nonzero(S), Opts#opts.naked_values == true ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S]);
|
||||
start(<<?solidus/utf8, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> start(Resume, Stack, Callbacks, Opts) end);
|
||||
start(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
start(Rest, Stack, Callbacks, Opts);
|
||||
start(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> start(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
maybe_done(<<?end_object/utf8, Rest/binary>>, [object|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, Callbacks), Opts);
|
||||
maybe_done(<<?end_array/utf8, Rest/binary>>, [array|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, Callbacks), Opts);
|
||||
maybe_done(<<?comma/utf8, Rest/binary>>, [object|Stack], Callbacks, Opts) ->
|
||||
key(Rest, [key|Stack], Callbacks, Opts);
|
||||
maybe_done(<<?comma/utf8, Rest/binary>>, [array|_] = Stack, Callbacks, Opts) ->
|
||||
value(Rest, Stack, Callbacks, Opts);
|
||||
maybe_done(<<?solidus/utf8, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> maybe_done(Resume, Stack, Callbacks, Opts) end);
|
||||
maybe_done(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, Callbacks, Opts);
|
||||
maybe_done(<<>>, [], Callbacks, _Opts) ->
|
||||
callback(eof, Callbacks);
|
||||
maybe_done(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> maybe_done(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
object(<<?end_object/utf8, Rest/binary>>, [key|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, Callbacks), Opts);
|
||||
object(<<?quote/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
object(<<?solidus/utf8, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> object(Resume, Stack, Callbacks, Opts) end);
|
||||
object(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
object(Rest, Stack, Callbacks, Opts);
|
||||
object(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> object(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
array(<<?quote/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
array(<<?start_object/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
object(Rest, [key|Stack], callback(start_object, Callbacks), Opts);
|
||||
array(<<?start_array/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
array(Rest, [array|Stack], callback(start_array, Callbacks), Opts);
|
||||
array(<<?end_array/utf8, Rest/binary>>, [array|Stack], Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, Callbacks), Opts);
|
||||
array(<<$t/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
tr(Rest, Stack, Callbacks, Opts);
|
||||
array(<<$f/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fa(Rest, Stack, Callbacks, Opts);
|
||||
array(<<$n/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
nu(Rest, Stack, Callbacks, Opts);
|
||||
array(<<?negative/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
negative(Rest, Stack, Callbacks, Opts, "-");
|
||||
array(<<?zero/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0");
|
||||
array(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S]);
|
||||
array(<<?solidus/utf8, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> array(Resume, Stack, Callbacks, Opts) end);
|
||||
array(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
array(Rest, Stack, Callbacks, Opts);
|
||||
array(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> array(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
value(<<?quote/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
value(<<?start_object/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
object(Rest, [key|Stack], callback(start_object, Callbacks), Opts);
|
||||
value(<<?start_array/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
array(Rest, [array|Stack], callback(start_array, Callbacks), Opts);
|
||||
value(<<$t/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
tr(Rest, Stack, Callbacks, Opts);
|
||||
value(<<$f/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fa(Rest, Stack, Callbacks, Opts);
|
||||
value(<<$n/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
nu(Rest, Stack, Callbacks, Opts);
|
||||
value(<<?negative/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
negative(Rest, Stack, Callbacks, Opts, "-");
|
||||
value(<<?zero/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0");
|
||||
value(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S]);
|
||||
value(<<?solidus/utf8, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> value(Resume, Stack, Callbacks, Opts) end);
|
||||
value(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
value(Rest, Stack, Callbacks, Opts);
|
||||
value(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> value(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
colon(<<?colon/utf8, Rest/binary>>, [key|Stack], Callbacks, Opts) ->
|
||||
value(Rest, [object|Stack], Callbacks, Opts);
|
||||
colon(<<?solidus/utf8, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> colon(Resume, Stack, Callbacks, Opts) end);
|
||||
colon(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
colon(Rest, Stack, Callbacks, Opts);
|
||||
colon(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> colon(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
key(<<?quote/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
string(Rest, Stack, Callbacks, Opts, []);
|
||||
key(<<?solidus/utf8, Rest/binary>>, Stack, Callbacks, Opts) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> key(Resume, Stack, Callbacks, Opts) end);
|
||||
key(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts) when ?is_whitespace(S) ->
|
||||
key(Rest, Stack, Callbacks, Opts);
|
||||
key(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> key(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
%% string has an additional parameter, an accumulator (Acc) used to hold the intermediate
|
||||
%% representation of the string being parsed. using a list of integers representing
|
||||
%% unicode codepoints is faster than constructing binaries, many of which will be
|
||||
%% converted back to lists by the user anyways.
|
||||
|
||||
string(<<?quote/utf8, Rest/binary>>, [key|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
colon(Rest, Stack, callback({key, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
string(<<?quote/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback({string, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
string(<<?rsolidus/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
escape(Rest, Stack, Callbacks, Opts, Acc);
|
||||
string(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_noncontrol(S) ->
|
||||
string(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
string(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> string(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
%% 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"/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\b" ++ Acc);
|
||||
escape(<<"f"/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\f" ++ Acc);
|
||||
escape(<<"n"/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\n" ++ Acc);
|
||||
escape(<<"r"/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\r" ++ Acc);
|
||||
escape(<<"t"/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
string(Rest, Stack, Callbacks, Opts, "\t" ++ Acc);
|
||||
escape(<<"u"/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
escaped_unicode(Rest, Stack, Callbacks, Opts, Acc, []);
|
||||
escape(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc)
|
||||
when S =:= ?quote; S =:= ?solidus; S =:= ?rsolidus ->
|
||||
string(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
escape(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> escape(Stream, Stack, Callbacks, Opts, Acc) 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 16 bit integer value (this is where json's spec gets
|
||||
%% insane). any other option and the sequence is converted back to an erlang string
|
||||
%% and appended to the string in place.
|
||||
|
||||
escaped_unicode(<<D/utf8, Rest/binary>>, Stack, Callbacks, Opts, String, [C, B, A]) ->
|
||||
X = erlang:list_to_integer([A, B, C, D], 16),
|
||||
case Opts#opts.escaped_unicode of
|
||||
ascii when X < 16#0080 ->
|
||||
string(Rest, Stack, Callbacks, Opts, [X] ++ String)
|
||||
; codepoint ->
|
||||
string(Rest, Stack, Callbacks, Opts, [X] ++ String)
|
||||
; _ ->
|
||||
string(Rest, Stack, Callbacks, Opts, [?rsolidus, $u, A, B, C, D] ++ String)
|
||||
end;
|
||||
escaped_unicode(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts, String, Acc) when ?is_hex(S) ->
|
||||
escaped_unicode(Rest, Stack, Callbacks, Opts, String, [S] ++ Acc);
|
||||
escaped_unicode(<<>>, Stack, Callbacks, Opts, String, Acc) ->
|
||||
fun(Stream) -> escaped_unicode(Stream, Stack, Callbacks, Opts, String, Acc) end.
|
||||
|
||||
|
||||
%% like strings, numbers are collected in an intermediate accumulator before
|
||||
%% being emitted to the callback handler. no processing of numbers is done in
|
||||
%% process, it's left for the user, though there are convenience functions to
|
||||
%% convert them into erlang floats/integers in jsx_utils.erl.
|
||||
|
||||
%% TODO: actually write that jsx_utils.erl module mentioned above...
|
||||
|
||||
negative(<<"0"/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
zero(Rest, Stack, Callbacks, Opts, "0" ++ Acc);
|
||||
negative(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
negative(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> negative(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
zero(<<?end_object/utf8, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
zero(<<?end_array/utf8, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
zero(<<?comma/utf8, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
zero(<<?comma/utf8, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
zero(<<?decimalpoint/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fraction(Rest, Stack, Callbacks, Opts, [?decimalpoint] ++ Acc);
|
||||
zero(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
zero(<<?solidus/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> zero(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
zero(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
zero(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> zero(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
integer(<<?end_object/utf8, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
integer(<<?end_array/utf8, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
integer(<<?comma/utf8, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
integer(<<?comma/utf8, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
integer(<<?decimalpoint/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fraction(Rest, Stack, Callbacks, Opts, [?decimalpoint] ++ Acc);
|
||||
integer(<<?zero/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [?zero] ++ Acc);
|
||||
integer(<<"e"/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e" ++ Acc);
|
||||
integer(<<"E"/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e" ++ Acc);
|
||||
integer(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
integer(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
integer(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
integer(<<?solidus/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> integer(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
integer(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
integer(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> integer(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
fraction(<<?end_object/utf8, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
fraction(<<?end_array/utf8, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
fraction(<<?comma/utf8, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
fraction(<<?comma/utf8, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
fraction(<<?zero/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fraction(Rest, Stack, Callbacks, Opts, [?zero] ++ Acc);
|
||||
fraction(<<"e"/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e" ++ Acc);
|
||||
fraction(<<"E"/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
e(Rest, Stack, Callbacks, Opts, "e" ++ Acc);
|
||||
fraction(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
fraction(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
fraction(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
fraction(<<?solidus/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> fraction(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
fraction(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
fraction(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> fraction(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
e(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when S =:= ?positive; S =:= ?negative ->
|
||||
ex(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
e(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when S =:= ?zero; ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
e(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> e(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
ex(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when S =:= ?zero; ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
ex(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> ex(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
exp(<<?end_object/utf8, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_object, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
exp(<<?end_array/utf8, Rest/binary>>, [array|Stack], Callbacks, Opts, Acc) ->
|
||||
maybe_done(Rest, Stack, callback(end_array, callback({number, lists:reverse(Acc)}, Callbacks)), Opts);
|
||||
exp(<<?comma/utf8, Rest/binary>>, [object|Stack], Callbacks, Opts, Acc) ->
|
||||
key(Rest, [key|Stack], callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
exp(<<?comma/utf8, Rest/binary>>, [array|_] = Stack, Callbacks, Opts, Acc) ->
|
||||
value(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
exp(<<?zero/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [?zero] ++ Acc);
|
||||
exp(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_nonzero(S) ->
|
||||
exp(Rest, Stack, Callbacks, Opts, [S] ++ Acc);
|
||||
exp(<<S/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when ?is_whitespace(S) ->
|
||||
maybe_done(Rest, Stack, callback({number, lists:reverse(Acc)}, Callbacks), Opts);
|
||||
exp(<<?rsolidus/utf8, Rest/binary>>, Stack, Callbacks, Opts, Acc) when Opts#opts.comments == true ->
|
||||
maybe_comment(Rest, fun(Resume) -> exp(Resume, Stack, Callbacks, Opts, Acc) end);
|
||||
exp(<<>>, [], Callbacks, _Opts, Acc) ->
|
||||
callback(eof, callback({number, lists:reverse(Acc)}, Callbacks));
|
||||
exp(<<>>, Stack, Callbacks, Opts, Acc) ->
|
||||
fun(Stream) -> exp(Stream, Stack, Callbacks, Opts, Acc) end.
|
||||
|
||||
|
||||
tr(<<"r"/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
tru(Rest, Stack, Callbacks, Opts);
|
||||
tr(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> tr(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
tru(<<"u"/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
true(Rest, Stack, Callbacks, Opts);
|
||||
tru(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> tru(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
true(<<"e"/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback({literal, true}, Callbacks), Opts);
|
||||
true(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> true(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
fa(<<"a"/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fal(Rest, Stack, Callbacks, Opts);
|
||||
fa(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> fa(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
fal(<<"l"/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
fals(Rest, Stack, Callbacks, Opts);
|
||||
fal(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> fal(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
fals(<<"s"/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
false(Rest, Stack, Callbacks, Opts);
|
||||
fals(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> fals(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
false(<<"e"/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback({literal, false}, Callbacks), Opts);
|
||||
false(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> false(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
nu(<<"u"/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
nul(Rest, Stack, Callbacks, Opts);
|
||||
nu(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> nu(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
nul(<<"l"/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
null(Rest, Stack, Callbacks, Opts);
|
||||
nul(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> nul(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
null(<<"l"/utf8, Rest/binary>>, Stack, Callbacks, Opts) ->
|
||||
maybe_done(Rest, Stack, callback({literal, null}, Callbacks), Opts);
|
||||
null(<<>>, Stack, Callbacks, Opts) ->
|
||||
fun(Stream) -> null(Stream, Stack, Callbacks, Opts) end.
|
||||
|
||||
|
||||
%% comments are c style, /* blah blah */ and are STRONGLY discouraged. any unicode
|
||||
%% character is valid in a comment, except, obviously the */ sequence which ends
|
||||
%% the comment. they're implemented as a closure called when the comment ends that
|
||||
%% returns execution to the point where the comment began. comments are not
|
||||
%% recorded in any way, simply parsed.
|
||||
|
||||
maybe_comment(<<?star/utf8, Rest/binary>>, Resume) ->
|
||||
comment(Rest, Resume);
|
||||
maybe_comment(<<>>, Resume) ->
|
||||
fun(Stream) -> maybe_comment(Stream, Resume) end.
|
||||
|
||||
|
||||
comment(<<?star/utf8, Rest/binary>>, Resume) ->
|
||||
maybe_comment_done(Rest, Resume);
|
||||
comment(<<_/utf8, Rest/binary>>, Resume) ->
|
||||
comment(Rest, Resume);
|
||||
comment(<<>>, Resume) ->
|
||||
fun(Stream) -> comment(Stream, Resume) end.
|
||||
|
||||
|
||||
maybe_comment_done(<<?solidus/utf8, Rest/binary>>, Resume) ->
|
||||
Resume(Rest);
|
||||
maybe_comment_done(<<>>, Resume) ->
|
||||
fun(Stream) -> maybe_comment_done(Stream, Resume) end.
|
||||
|
||||
|
||||
%% helper function for dispatching of parser events
|
||||
|
||||
callback(eof, {none, Callbacks}) ->
|
||||
lists:reverse(Callbacks);
|
||||
callback(Event, {none, Callbacks}) ->
|
||||
{none, [Event] ++ Callbacks};
|
||||
callback(Event, {Mod, State}) when is_atom(Mod) ->
|
||||
{Mod, Mod:jsx_event(Event, State)};
|
||||
callback(Event, {F, State}) when is_function(F) ->
|
||||
{F, F(Event, State)}.
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
|
@ -1 +0,0 @@
|
|||
42
|
||||
|
|
@ -1,2 +0,0 @@
|
|||
[{number, "42"}].
|
||||
[{naked_values, true}].
|
||||
|
|
@ -26,11 +26,22 @@ test_body(TestSpec, Dir) ->
|
|||
case file:consult(Dir ++ "/" ++ TestSpec) of
|
||||
{ok, [Events]} ->
|
||||
Decoder = jsx:decoder(),
|
||||
[{TestName, ?_assertEqual(Decoder(JSON), Events)}]
|
||||
[{TestName, ?_assertEqual(decode(Decoder, JSON), Events)}]
|
||||
; {ok, [Events, Flags]} ->
|
||||
Decoder = jsx:decoder(none, Flags),
|
||||
[{TestName, ?_assertEqual(Decoder(JSON), Events)}]
|
||||
[{TestName, ?_assertEqual(decode(Decoder, JSON), Events)}]
|
||||
end
|
||||
catch _:_ -> []
|
||||
end.
|
||||
|
||||
decode(F, <<>>) ->
|
||||
{Result, _} = F(eof),
|
||||
Result;
|
||||
decode(F, <<A/utf8, Rest/binary>>) ->
|
||||
case F(<<A/utf8>>) of
|
||||
G when is_function(G) ->
|
||||
decode(G, Rest)
|
||||
; {Result, _} ->
|
||||
Result
|
||||
end.
|
||||
|
||||
Loading…
Add table
Add a link
Reference in a new issue