[ViewVC] Diff of: cvs/JSON-XS/XS.xs

Comparing JSON-XS/XS.xs (file contents):
Revision 1.40 by root, Tue Jun 12 01:27:02 2007 UTC vs.
Revision 1.55 by root, Mon Jul 23 22:57:40 2007 UTC

…		…
9		9
10	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	10	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)
11	# define snprintf _snprintf // C compilers have this in stdio.h	11	# define snprintf _snprintf // C compilers have this in stdio.h
12	#endif	12	#endif
13		13
		14	// some old perls do not have this, try to make it work, no
		15	// guarentees, though. if it breaks, you get to keep the pieces.
		16	#ifndef UTF8_MAXBYTES
		17	# define UTF8_MAXBYTES 13
		18	#endif
		19
14	#define F_ASCII 0x00000001UL	20	#define F_ASCII 0x00000001UL
15	#define F_LATIN1 0x00000002UL	21	#define F_LATIN1 0x00000002UL
16	#define F_UTF8 0x00000004UL	22	#define F_UTF8 0x00000004UL
17	#define F_INDENT 0x00000008UL	23	#define F_INDENT 0x00000008UL
18	#define F_CANONICAL 0x00000010UL	24	#define F_CANONICAL 0x00000010UL
19	#define F_SPACE_BEFORE 0x00000020UL	25	#define F_SPACE_BEFORE 0x00000020UL
20	#define F_SPACE_AFTER 0x00000040UL	26	#define F_SPACE_AFTER 0x00000040UL
21	#define F_ALLOW_NONREF 0x00000100UL	27	#define F_ALLOW_NONREF 0x00000100UL
22	#define F_SHRINK 0x00000200UL	28	#define F_SHRINK 0x00000200UL
		29	#define F_ALLOW_BLESSED 0x00000400UL
		30	#define F_CONV_BLESSED 0x00000800UL
23	#define F_MAXDEPTH 0xf8000000UL	31	#define F_MAXDEPTH 0xf8000000UL
24	#define S_MAXDEPTH 27	32	#define S_MAXDEPTH 27
		33	#define F_MAXSIZE 0x01f00000UL
		34	#define S_MAXSIZE 20
		35	#define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing
25		36
26	#define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH))	37	#define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH))
27		38	#define DEC_SIZE(flags) (1UL << ((flags & F_MAXSIZE ) >> S_MAXSIZE ))
28	// F_SELFCONVERT? <=> to_json/toJson
29	// F_BLESSED? <=> { $__class__$ => }
30		39
31	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER	40	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER
32	#define F_DEFAULT (9UL << S_MAXDEPTH)	41	#define F_DEFAULT (9UL << S_MAXDEPTH)
33		42
34	#define INIT_SIZE 32 // initial scalar size to be allocated	43	#define INIT_SIZE 32 // initial scalar size to be allocated
…		…
48	#endif	57	#endif
49		58
50	#define expect_false(expr) expect ((expr) != 0, 0)	59	#define expect_false(expr) expect ((expr) != 0, 0)
51	#define expect_true(expr) expect ((expr) != 0, 1)	60	#define expect_true(expr) expect ((expr) != 0, 1)
52		61
53	static HV *json_stash; // JSON::XS::	62	static HV json_stash, json_boolean_stash; // JSON::XS::
		63	static SV json_true, json_false;
		64
		65	typedef struct {
		66	U32 flags;
		67	SV *cb_object;
		68	HV *cb_sk_object;
		69	} JSON;
54		70
55	/////////////////////////////////////////////////////////////////////////////	71	/////////////////////////////////////////////////////////////////////////////
56	// utility functions	72	// utility functions
57		73
58	static UV *	74	inline void
59	SvJSON (SV *sv)
60	{
61	if (!(SvROK (sv) && SvOBJECT (SvRV (sv)) && SvSTASH (SvRV (sv)) == json_stash))
62	croak ("object is not of type JSON::XS");
63
64	return &SvUVX (SvRV (sv));
65	}
66
67	static void
68	shrink (SV *sv)	75	shrink (SV *sv)
69	{	76	{
70	sv_utf8_downgrade (sv, 1);	77	sv_utf8_downgrade (sv, 1);
71	if (SvLEN (sv) > SvCUR (sv) + 1)	78	if (SvLEN (sv) > SvCUR (sv) + 1)
72	{	79	{
…		…
107	typedef struct	114	typedef struct
108	{	115	{
109	char *cur; // SvPVX (sv) + current output position	116	char *cur; // SvPVX (sv) + current output position
110	char *end; // SvEND (sv)	117	char *end; // SvEND (sv)
111	SV *sv; // result scalar	118	SV *sv; // result scalar
112	U32 flags; // F_*	119	JSON json;
113	U32 indent; // indentation level	120	U32 indent; // indentation level
114	U32 maxdepth; // max. indentation/recursion level	121	U32 maxdepth; // max. indentation/recursion level
115	} enc_t;	122	} enc_t;
116		123
117	inline void	124	inline void
…		…
191	}	198	}
192		199
193	if (uch > 0x10FFFFUL)	200	if (uch > 0x10FFFFUL)
194	croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);	201	croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);
195		202
196	if (uch < 0x80 \|\| enc->flags & F_ASCII \|\| (enc->flags & F_LATIN1 && uch > 0xFF))	203	if (uch < 0x80 \|\| enc->json.flags & F_ASCII \|\| (enc->json.flags & F_LATIN1 && uch > 0xFF))
197	{	204	{
198	if (uch > 0xFFFFUL)	205	if (uch > 0xFFFFUL)
199	{	206	{
200	need (enc, len += 11);	207	need (enc, len += 11);
201	sprintf (enc->cur, "\\u%04x\\u%04x",	208	sprintf (enc->cur, "\\u%04x\\u%04x",
…		…
215	*enc->cur++ = hexdigit [(uch >> 0) & 15];	222	*enc->cur++ = hexdigit [(uch >> 0) & 15];
216	}	223	}
217		224
218	str += clen;	225	str += clen;
219	}	226	}
220	else if (enc->flags & F_LATIN1)	227	else if (enc->json.flags & F_LATIN1)
221	{	228	{
222	*enc->cur++ = uch;	229	*enc->cur++ = uch;
223	str += clen;	230	str += clen;
224	}	231	}
225	else if (is_utf8)	232	else if (is_utf8)
…		…
246	}	253	}
247		254
248	inline void	255	inline void
249	encode_indent (enc_t *enc)	256	encode_indent (enc_t *enc)
250	{	257	{
251	if (enc->flags & F_INDENT)	258	if (enc->json.flags & F_INDENT)
252	{	259	{
253	int spaces = enc->indent * INDENT_STEP;	260	int spaces = enc->indent * INDENT_STEP;
254		261
255	need (enc, spaces);	262	need (enc, spaces);
256	memset (enc->cur, ' ', spaces);	263	memset (enc->cur, ' ', spaces);
…		…
266	}	273	}
267		274
268	inline void	275	inline void
269	encode_nl (enc_t *enc)	276	encode_nl (enc_t *enc)
270	{	277	{
271	if (enc->flags & F_INDENT)	278	if (enc->json.flags & F_INDENT)
272	{	279	{
273	need (enc, 1);	280	need (enc, 1);
274	encode_ch (enc, '\n');	281	encode_ch (enc, '\n');
275	}	282	}
276	}	283	}
…		…
278	inline void	285	inline void
279	encode_comma (enc_t *enc)	286	encode_comma (enc_t *enc)
280	{	287	{
281	encode_ch (enc, ',');	288	encode_ch (enc, ',');
282		289
283	if (enc->flags & F_INDENT)	290	if (enc->json.flags & F_INDENT)
284	encode_nl (enc);	291	encode_nl (enc);
285	else if (enc->flags & F_SPACE_AFTER)	292	else if (enc->json.flags & F_SPACE_AFTER)
286	encode_space (enc);	293	encode_space (enc);
287	}	294	}
288		295
289	static void encode_sv (enc_t enc, SV sv);	296	static void encode_sv (enc_t enc, SV sv);
290		297
…		…
299	encode_ch (enc, '['); encode_nl (enc);	306	encode_ch (enc, '['); encode_nl (enc);
300	++enc->indent;	307	++enc->indent;
301		308
302	for (i = 0; i <= len; ++i)	309	for (i = 0; i <= len; ++i)
303	{	310	{
		311	SV **svp = av_fetch (av, i, 0);
		312
304	encode_indent (enc);	313	encode_indent (enc);
305	encode_sv (enc, *av_fetch (av, i, 0));	314
		315	if (svp)
		316	encode_sv (enc, *svp);
		317	else
		318	encode_str (enc, "null", 4, 0);
306		319
307	if (i < len)	320	if (i < len)
308	encode_comma (enc);	321	encode_comma (enc);
309	}	322	}
310		323
…		…
333	else	346	else
334	encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he));	347	encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he));
335		348
336	encode_ch (enc, '"');	349	encode_ch (enc, '"');
337		350
338	if (enc->flags & F_SPACE_BEFORE) encode_space (enc);	351	if (enc->json.flags & F_SPACE_BEFORE) encode_space (enc);
339	encode_ch (enc, ':');	352	encode_ch (enc, ':');
340	if (enc->flags & F_SPACE_AFTER ) encode_space (enc);	353	if (enc->json.flags & F_SPACE_AFTER ) encode_space (enc);
341	encode_sv (enc, HeVAL (he));	354	encode_sv (enc, HeVAL (he));
342	}	355	}
343		356
344	// compare hash entries, used when all keys are bytestrings	357	// compare hash entries, used when all keys are bytestrings
345	static int	358	static int
…		…
380	{	393	{
381	// for canonical output we have to sort by keys first	394	// for canonical output we have to sort by keys first
382	// actually, this is mostly due to the stupid so-called	395	// actually, this is mostly due to the stupid so-called
383	// security workaround added somewhere in 5.8.x.	396	// security workaround added somewhere in 5.8.x.
384	// that randomises hash orderings	397	// that randomises hash orderings
385	if (enc->flags & F_CANONICAL)	398	if (enc->json.flags & F_CANONICAL)
386	{	399	{
387	int fast = 1;	400	int fast = 1;
388	HE *he;	401	HE *he;
389	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	402	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)
390	HE *hes = _alloca (count sizeof (HE));	403	HE *hes = _alloca (count sizeof (HE));
…		…
462	svtype svt;	475	svtype svt;
463		476
464	SvGETMAGIC (sv);	477	SvGETMAGIC (sv);
465	svt = SvTYPE (sv);	478	svt = SvTYPE (sv);
466		479
		480	if (expect_false (SvOBJECT (sv)))
		481	{
		482	if (SvSTASH (sv) == json_boolean_stash)
		483	{
		484	if (SvIV (sv))
		485	encode_str (enc, "true", 4, 0);
		486	else
		487	encode_str (enc, "false", 5, 0);
		488	}
		489	else
		490	{
		491	#if 0
		492	if (0 && sv_derived_from (rv, "JSON::Literal"))
		493	{
		494	// not yet
		495	}
		496	#endif
		497	if (enc->json.flags & F_CONV_BLESSED)
		498	{
		499	// we re-bless the reference to get overload and other niceties right
		500	GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 0);
		501
		502	if (to_json)
		503	{
		504	int count;
		505	dSP;
		506
		507	ENTER; SAVETMPS; PUSHMARK (SP);
		508	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv)));
		509
		510	// calling with G_SCALAR ensures that we always get a 1 return value
		511	PUTBACK;
		512	call_sv ((SV *)GvCV (to_json), G_SCALAR);
		513	SPAGAIN;
		514
		515	// catch this surprisingly common error
		516	if (SvROK (TOPs) && SvRV (TOPs) == sv)
		517	croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
		518
		519	sv = POPs;
		520	PUTBACK;
		521
		522	encode_sv (enc, sv);
		523
		524	FREETMPS; LEAVE;
		525	}
		526	else if (enc->json.flags & F_ALLOW_BLESSED)
		527	encode_str (enc, "null", 4, 0);
		528	else
		529	croak ("encountered object '%s', but neither allow_blessed enabled nor TO_JSON method available on it",
		530	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
		531	}
		532	else if (enc->json.flags & F_ALLOW_BLESSED)
		533	encode_str (enc, "null", 4, 0);
		534	else
		535	croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled",
		536	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
		537	}
		538	}
467	if (svt == SVt_PVHV)	539	else if (svt == SVt_PVHV)
468	encode_hv (enc, (HV *)sv);	540	encode_hv (enc, (HV *)sv);
469	else if (svt == SVt_PVAV)	541	else if (svt == SVt_PVAV)
470	encode_av (enc, (AV *)sv);	542	encode_av (enc, (AV *)sv);
471	else if (svt < SVt_PVAV)	543	else if (svt < SVt_PVAV)
472	{	544	{
473	if (SvNIOK (sv) && SvIV (sv) == 0)	545	STRLEN len = 0;
		546	char *pv = svt ? SvPV (sv, len) : 0;
		547
		548	if (len == 1 && *pv == '1')
		549	encode_str (enc, "true", 4, 0);
		550	else if (len == 1 && *pv == '0')
474	encode_str (enc, "false", 5, 0);	551	encode_str (enc, "false", 5, 0);
475	else if (SvNIOK (sv) && SvIV (sv) == 1)
476	encode_str (enc, "true", 4, 0);
477	else	552	else
478	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",	553	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",
479	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	554	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
480	}	555	}
481	else	556	else
…		…
551	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",	626	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",
552	SvPV_nolen (sv), SvFLAGS (sv));	627	SvPV_nolen (sv), SvFLAGS (sv));
553	}	628	}
554		629
555	static SV *	630	static SV *
556	encode_json (SV *scalar, U32 flags)	631	encode_json (SV scalar, JSON json)
557	{	632	{
558	enc_t enc;	633	enc_t enc;
559		634
560	if (!(flags & F_ALLOW_NONREF) && !SvROK (scalar))	635	if (!(json->flags & F_ALLOW_NONREF) && !SvROK (scalar))
561	croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");	636	croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");
562		637
563	enc.flags = flags;	638	enc.json = *json;
564	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	639	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
565	enc.cur = SvPVX (enc.sv);	640	enc.cur = SvPVX (enc.sv);
566	enc.end = SvEND (enc.sv);	641	enc.end = SvEND (enc.sv);
567	enc.indent = 0;	642	enc.indent = 0;
568	enc.maxdepth = DEC_DEPTH (flags);	643	enc.maxdepth = DEC_DEPTH (enc.json.flags);
569		644
570	SvPOK_only (enc.sv);	645	SvPOK_only (enc.sv);
571	encode_sv (&enc, scalar);	646	encode_sv (&enc, scalar);
572		647
573	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));	648	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));
574	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings	649	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings
575		650
576	if (!(flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))	651	if (!(enc.json.flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))
577	SvUTF8_on (enc.sv);	652	SvUTF8_on (enc.sv);
578		653
579	if (enc.flags & F_SHRINK)	654	if (enc.json.flags & F_SHRINK)
580	shrink (enc.sv);	655	shrink (enc.sv);
581		656
582	return enc.sv;	657	return enc.sv;
583	}	658	}
584		659
…		…
589	typedef struct	664	typedef struct
590	{	665	{
591	char *cur; // current parser pointer	666	char *cur; // current parser pointer
592	char *end; // end of input string	667	char *end; // end of input string
593	const char *err; // parse error, if != 0	668	const char *err; // parse error, if != 0
594	U32 flags; // F_*	669	JSON json;
595	U32 depth; // recursion depth	670	U32 depth; // recursion depth
596	U32 maxdepth; // recursion depth limit	671	U32 maxdepth; // recursion depth limit
597	} dec_t;	672	} dec_t;
598		673
599	inline void	674	inline void
…		…
950	}	1025	}
951		1026
952	static SV *	1027	static SV *
953	decode_hv (dec_t *dec)	1028	decode_hv (dec_t *dec)
954	{	1029	{
		1030	SV *sv;
955	HV *hv = newHV ();	1031	HV *hv = newHV ();
956		1032
957	DEC_INC_DEPTH;	1033	DEC_INC_DEPTH;
958	decode_ws (dec);	1034	decode_ws (dec);
959		1035
960	if (*dec->cur == '}')	1036	if (*dec->cur == '}')
961	++dec->cur;	1037	++dec->cur;
962	else	1038	else
963	for (;;)	1039	for (;;)
964	{	1040	{
965	SV key, value;
966
967	decode_ws (dec); EXPECT_CH ('"');	1041	decode_ws (dec); EXPECT_CH ('"');
968		1042
969	key = decode_str (dec);	1043	// heuristic: assume that
970	if (!key)	1044	// a) decode_str + hv_store_ent are abysmally slow.
971	goto fail;	1045	// b) most hash keys are short, simple ascii text.
		1046	// => try to "fast-match" such strings to avoid
		1047	// the overhead of decode_str + hv_store_ent.
		1048	{
		1049	SV *value;
		1050	char *p = dec->cur;
		1051	char *e = p + 24; // only try up to 24 bytes
972		1052
973	decode_ws (dec); EXPECT_CH (':');	1053	for (;;)
974
975	value = decode_sv (dec);
976	if (!value)
977	{	1054	{
		1055	// the >= 0x80 is true on most architectures
		1056	if (p == e \|\| p < 0x20 \|\| p >= 0x80 \|\| *p == '\\')
		1057	{
		1058	// slow path, back up and use decode_str
		1059	SV *key = decode_str (dec);
		1060	if (!key)
		1061	goto fail;
		1062
		1063	decode_ws (dec); EXPECT_CH (':');
		1064
		1065	value = decode_sv (dec);
		1066	if (!value)
		1067	{
		1068	SvREFCNT_dec (key);
		1069	goto fail;
		1070	}
		1071
		1072	hv_store_ent (hv, key, value, 0);
978	SvREFCNT_dec (key);	1073	SvREFCNT_dec (key);
		1074
		1075	break;
		1076	}
		1077	else if (*p == '"')
		1078	{
		1079	// fast path, got a simple key
		1080	char *key = dec->cur;
		1081	int len = p - key;
		1082	dec->cur = p + 1;
		1083
		1084	decode_ws (dec); EXPECT_CH (':');
		1085
		1086	value = decode_sv (dec);
		1087	if (!value)
979	goto fail;	1088	goto fail;
		1089
		1090	hv_store (hv, key, len, value, 0);
		1091
		1092	break;
		1093	}
		1094
		1095	++p;
980	}	1096	}
981		1097	}
982	hv_store_ent (hv, key, value, 0);
983	SvREFCNT_dec (key);
984		1098
985	decode_ws (dec);	1099	decode_ws (dec);
986		1100
987	if (*dec->cur == '}')	1101	if (*dec->cur == '}')
988	{	1102	{
…		…
995		1109
996	++dec->cur;	1110	++dec->cur;
997	}	1111	}
998		1112
999	DEC_DEC_DEPTH;	1113	DEC_DEC_DEPTH;
1000	return newRV_noinc ((SV *)hv);	1114	sv = newRV_noinc ((SV *)hv);
		1115
		1116	// check filter callbacks
		1117	if (dec->json.flags & F_HOOK)
		1118	{
		1119	if (dec->json.cb_sk_object && HvKEYS (hv) == 1)
		1120	{
		1121	HE cb, he;
		1122
		1123	hv_iterinit (hv);
		1124	he = hv_iternext (hv);
		1125	hv_iterinit (hv);
		1126
		1127	// the next line creates a mortal sv each time its called.
		1128	// might want to optimise this for common cases.
		1129	cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0);
		1130
		1131	if (cb)
		1132	{
		1133	dSP;
		1134	int count;
		1135
		1136	ENTER; SAVETMPS; PUSHMARK (SP);
		1137	XPUSHs (HeVAL (he));
		1138
		1139	PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN;
		1140
		1141	if (count == 1)
		1142	{
		1143	sv = newSVsv (POPs);
		1144	FREETMPS; LEAVE;
		1145	return sv;
		1146	}
		1147
		1148	FREETMPS; LEAVE;
		1149	}
		1150	}
		1151
		1152	if (dec->json.cb_object)
		1153	{
		1154	dSP;
		1155	int count;
		1156
		1157	ENTER; SAVETMPS; PUSHMARK (SP);
		1158	XPUSHs (sv_2mortal (sv));
		1159
		1160	PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN;
		1161
		1162	if (count == 1)
		1163	{
		1164	sv = newSVsv (POPs);
		1165	FREETMPS; LEAVE;
		1166	return sv;
		1167	}
		1168
		1169	SvREFCNT_inc (sv);
		1170	FREETMPS; LEAVE;
		1171	}
		1172	}
		1173
		1174	return sv;
1001		1175
1002	fail:	1176	fail:
1003	SvREFCNT_dec (hv);	1177	SvREFCNT_dec (hv);
1004	DEC_DEC_DEPTH;	1178	DEC_DEC_DEPTH;
1005	return 0;	1179	return 0;
…		…
1025		1199
1026	case 't':	1200	case 't':
1027	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))	1201	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))
1028	{	1202	{
1029	dec->cur += 4;	1203	dec->cur += 4;
1030	return newSViv (1);	1204	return SvREFCNT_inc (json_true);
1031	}	1205	}
1032	else	1206	else
1033	ERR ("'true' expected");	1207	ERR ("'true' expected");
1034		1208
1035	break;	1209	break;
1036		1210
1037	case 'f':	1211	case 'f':
1038	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))	1212	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))
1039	{	1213	{
1040	dec->cur += 5;	1214	dec->cur += 5;
1041	return newSViv (0);	1215	return SvREFCNT_inc (json_false);
1042	}	1216	}
1043	else	1217	else
1044	ERR ("'false' expected");	1218	ERR ("'false' expected");
1045		1219
1046	break;	1220	break;
…		…
1064	fail:	1238	fail:
1065	return 0;	1239	return 0;
1066	}	1240	}
1067		1241
1068	static SV *	1242	static SV *
1069	decode_json (SV string, U32 flags, UV offset_return)	1243	decode_json (SV string, JSON json, UV *offset_return)
1070	{	1244	{
1071	dec_t dec;	1245	dec_t dec;
1072	UV offset;	1246	UV offset;
1073	SV *sv;	1247	SV *sv;
1074		1248
1075	SvGETMAGIC (string);	1249	SvGETMAGIC (string);
1076	SvUPGRADE (string, SVt_PV);	1250	SvUPGRADE (string, SVt_PV);
1077		1251
		1252	if (json->flags & F_MAXSIZE && SvCUR (string) > DEC_SIZE (json->flags))
		1253	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",
		1254	(unsigned long)SvCUR (string), (unsigned long)DEC_SIZE (json->flags));
		1255
1078	if (flags & F_UTF8)	1256	if (json->flags & F_UTF8)
1079	sv_utf8_downgrade (string, 0);	1257	sv_utf8_downgrade (string, 0);
1080	else	1258	else
1081	sv_utf8_upgrade (string);	1259	sv_utf8_upgrade (string);
1082		1260
1083	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP	1261	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP
1084		1262
1085	dec.flags = flags;	1263	dec.json = *json;
1086	dec.cur = SvPVX (string);	1264	dec.cur = SvPVX (string);
1087	dec.end = SvEND (string);	1265	dec.end = SvEND (string);
1088	dec.err = 0;	1266	dec.err = 0;
1089	dec.depth = 0;	1267	dec.depth = 0;
1090	dec.maxdepth = DEC_DEPTH (dec.flags);	1268	dec.maxdepth = DEC_DEPTH (dec.json.flags);
		1269
		1270	if (dec.json.cb_object \|\| dec.json.cb_sk_object)
		1271	dec.json.flags \|= F_HOOK;
1091		1272
1092	*dec.end = 0; // this should basically be a nop, too, but make sure it's there	1273	*dec.end = 0; // this should basically be a nop, too, but make sure it's there
1093	sv = decode_sv (&dec);	1274	sv = decode_sv (&dec);
1094		1275
1095	if (!(offset_return \|\| !sv))	1276	if (!(offset_return \|\| !sv))
…		…
1105	}	1286	}
1106	}	1287	}
1107		1288
1108	if (offset_return \|\| !sv)	1289	if (offset_return \|\| !sv)
1109	{	1290	{
1110	offset = dec.flags & F_UTF8	1291	offset = dec.json.flags & F_UTF8
1111	? dec.cur - SvPVX (string)	1292	? dec.cur - SvPVX (string)
1112	: utf8_distance (dec.cur, SvPVX (string));	1293	: utf8_distance (dec.cur, SvPVX (string));
1113		1294
1114	if (offset_return)	1295	if (offset_return)
1115	*offset_return = offset;	1296	*offset_return = offset;
…		…
1134	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");	1315	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");
1135	}	1316	}
1136		1317
1137	sv = sv_2mortal (sv);	1318	sv = sv_2mortal (sv);
1138		1319
1139	if (!(dec.flags & F_ALLOW_NONREF) && !SvROK (sv))	1320	if (!(dec.json.flags & F_ALLOW_NONREF) && !SvROK (sv))
1140	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");	1321	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");
1141		1322
1142	return sv;	1323	return sv;
1143	}	1324	}
1144		1325
…		…
1156	i >= '0' && i <= '9' ? i - '0'	1337	i >= '0' && i <= '9' ? i - '0'
1157	: i >= 'a' && i <= 'f' ? i - 'a' + 10	1338	: i >= 'a' && i <= 'f' ? i - 'a' + 10
1158	: i >= 'A' && i <= 'F' ? i - 'A' + 10	1339	: i >= 'A' && i <= 'F' ? i - 'A' + 10
1159	: -1;	1340	: -1;
1160		1341
1161	json_stash = gv_stashpv ("JSON::XS", 1);	1342	json_stash = gv_stashpv ("JSON::XS" , 1);
		1343	json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1);
		1344
		1345	json_true = get_sv ("JSON::XS::true" , 1); SvREADONLY_on (json_true );
		1346	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);
1162	}	1347	}
1163		1348
1164	PROTOTYPES: DISABLE	1349	PROTOTYPES: DISABLE
1165		1350
1166	SV new (char dummy)	1351	void new (char *klass)
1167	CODE:	1352	PPCODE:
1168	RETVAL = sv_bless (newRV_noinc (newSVuv (F_DEFAULT)), json_stash);	1353	{
1169	OUTPUT:	1354	SV *pv = NEWSV (0, sizeof (JSON));
1170	RETVAL	1355	SvPOK_only (pv);
		1356	Zero (SvPVX (pv), 1, JSON);
		1357	((JSON *)SvPVX (pv))->flags = F_DEFAULT;
		1358	XPUSHs (sv_2mortal (sv_bless (newRV_noinc (pv), json_stash)));
		1359	}
1171		1360
1172	SV ascii (SV self, int enable = 1)	1361	void ascii (JSON *self, int enable = 1)
1173	ALIAS:	1362	ALIAS:
1174	ascii = F_ASCII	1363	ascii = F_ASCII
1175	latin1 = F_LATIN1	1364	latin1 = F_LATIN1
1176	utf8 = F_UTF8	1365	utf8 = F_UTF8
1177	indent = F_INDENT	1366	indent = F_INDENT
1178	canonical = F_CANONICAL	1367	canonical = F_CANONICAL
1179	space_before = F_SPACE_BEFORE	1368	space_before = F_SPACE_BEFORE
1180	space_after = F_SPACE_AFTER	1369	space_after = F_SPACE_AFTER
1181	pretty = F_PRETTY	1370	pretty = F_PRETTY
1182	allow_nonref = F_ALLOW_NONREF	1371	allow_nonref = F_ALLOW_NONREF
1183	shrink = F_SHRINK	1372	shrink = F_SHRINK
		1373	allow_blessed = F_ALLOW_BLESSED
		1374	convert_blessed = F_CONV_BLESSED
1184	CODE:	1375	PPCODE:
1185	{	1376	{
1186	UV *uv = SvJSON (self);
1187	if (enable)	1377	if (enable)
1188	*uv \|= ix;	1378	self->flags \|= ix;
1189	else	1379	else
1190	*uv &= ~ix;	1380	self->flags &= ~ix;
1191		1381
1192	RETVAL = newSVsv (self);	1382	XPUSHs (ST (0));
1193	}	1383	}
1194	OUTPUT:
1195	RETVAL
1196		1384
1197	SV max_depth (SV self, UV max_depth = 0x80000000UL)	1385	void max_depth (JSON *self, UV max_depth = 0x80000000UL)
1198	CODE:	1386	PPCODE:
1199	{	1387	{
1200	UV *uv = SvJSON (self);
1201	UV log2 = 0;	1388	UV log2 = 0;
1202		1389
1203	if (max_depth > 0x80000000UL) max_depth = 0x80000000UL;	1390	if (max_depth > 0x80000000UL) max_depth = 0x80000000UL;
1204		1391
1205	while ((1UL << log2) < max_depth)	1392	while ((1UL << log2) < max_depth)
1206	++log2;	1393	++log2;
1207		1394
1208	uv = uv & ~F_MAXDEPTH \| (log2 << S_MAXDEPTH);	1395	self->flags = self->flags & ~F_MAXDEPTH \| (log2 << S_MAXDEPTH);
1209		1396
1210	RETVAL = newSVsv (self);	1397	XPUSHs (ST (0));
1211	}	1398	}
1212	OUTPUT:
1213	RETVAL
1214		1399
1215	void encode (SV self, SV scalar)	1400	void max_size (JSON *self, UV max_size = 0)
1216	PPCODE:	1401	PPCODE:
1217	XPUSHs (encode_json (scalar, *SvJSON (self)));	1402	{
		1403	UV log2 = 0;
1218		1404
1219	void decode (SV self, SV jsonstr)	1405	if (max_size > 0x80000000UL) max_size = 0x80000000UL;
		1406	if (max_size == 1) max_size = 2;
		1407
		1408	while ((1UL << log2) < max_size)
		1409	++log2;
		1410
		1411	self->flags = self->flags & ~F_MAXSIZE \| (log2 << S_MAXSIZE);
		1412
		1413	XPUSHs (ST (0));
		1414	}
		1415
		1416	void filter_json_object (JSON self, SV cb = &PL_sv_undef)
1220	PPCODE:	1417	PPCODE:
		1418	{
		1419	SvREFCNT_dec (self->cb_object);
		1420	self->cb_object = SvOK (cb) ? newSVsv (cb) : 0;
		1421
		1422	XPUSHs (ST (0));
		1423	}
		1424
		1425	void filter_json_single_key_object (JSON self, SV key, SV *cb = &PL_sv_undef)
		1426	PPCODE:
		1427	{
		1428	if (!self->cb_sk_object)
		1429	self->cb_sk_object = newHV ();
		1430
		1431	if (SvOK (cb))
		1432	hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0);
		1433	else
		1434	{
		1435	hv_delete_ent (self->cb_sk_object, key, G_DISCARD, 0);
		1436
		1437	if (!HvKEYS (self->cb_sk_object))
		1438	{
		1439	SvREFCNT_dec (self->cb_sk_object);
		1440	self->cb_sk_object = 0;
		1441	}
		1442	}
		1443
		1444	XPUSHs (ST (0));
		1445	}
		1446
		1447	void encode (JSON self, SV scalar)
		1448	PPCODE:
		1449	XPUSHs (encode_json (scalar, self));
		1450
		1451	void decode (JSON self, SV jsonstr)
		1452	PPCODE:
1221	XPUSHs (decode_json (jsonstr, *SvJSON (self), 0));	1453	XPUSHs (decode_json (jsonstr, self, 0));
1222		1454
1223	void decode_prefix (SV self, SV jsonstr)	1455	void decode_prefix (JSON self, SV jsonstr)
1224	PPCODE:	1456	PPCODE:
1225	{	1457	{
1226	UV offset;	1458	UV offset;
1227	EXTEND (SP, 2);	1459	EXTEND (SP, 2);
1228	PUSHs (decode_json (jsonstr, *SvJSON (self), &offset));	1460	PUSHs (decode_json (jsonstr, self, &offset));
1229	PUSHs (sv_2mortal (newSVuv (offset)));	1461	PUSHs (sv_2mortal (newSVuv (offset)));
1230	}	1462	}
1231		1463
		1464	void DESTROY (JSON *self)
		1465	CODE:
		1466	SvREFCNT_dec (self->cb_sk_object);
		1467	SvREFCNT_dec (self->cb_object);
		1468
1232	PROTOTYPES: ENABLE	1469	PROTOTYPES: ENABLE
1233		1470
1234	void to_json (SV *scalar)	1471	void to_json (SV *scalar)
1235	ALIAS:
1236	objToJson = 0
1237	PPCODE:	1472	PPCODE:
		1473	{
		1474	JSON json = { F_DEFAULT \| F_UTF8 };
1238	XPUSHs (encode_json (scalar, F_DEFAULT \| F_UTF8));	1475	XPUSHs (encode_json (scalar, &json));
		1476	}
1239		1477
1240	void from_json (SV *jsonstr)	1478	void from_json (SV *jsonstr)
1241	ALIAS:
1242	jsonToObj = 0
1243	PPCODE:	1479	PPCODE:
		1480	{
		1481	JSON json = { F_DEFAULT \| F_UTF8 };
1244	XPUSHs (decode_json (jsonstr, F_DEFAULT \| F_UTF8, 0));	1482	XPUSHs (decode_json (jsonstr, &json, 0));
		1483	}
1245		1484

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+Removed lines
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+Changed lines
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+Changed lines

Comparing JSON-XS/XS.xs (file contents): Revision 1.40 by root, Tue Jun 12 01:27:02 2007 UTC vs. Revision 1.55 by root, Mon Jul 23 22:57:40 2007 UTC

Diff Legend

Comparing JSON-XS/XS.xs (file contents):
Revision 1.40 by root, Tue Jun 12 01:27:02 2007 UTC vs.
Revision 1.55 by root, Mon Jul 23 22:57:40 2007 UTC