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

Comparing JSON-XS/XS.xs (file contents):
Revision 1.70 by root, Wed Mar 19 00:44:54 2008 UTC vs.
Revision 1.89 by root, Sat Jul 19 04:21:32 2008 UTC

…		…
4		4
5	#include <assert.h>	5	#include <assert.h>
6	#include <string.h>	6	#include <string.h>
7	#include <stdlib.h>	7	#include <stdlib.h>
8	#include <stdio.h>	8	#include <stdio.h>
		9	#include <limits.h>
9	#include <float.h>	10	#include <float.h>
10		11
11	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	12	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)
12	# define snprintf _snprintf // C compilers have this in stdio.h	13	# define snprintf _snprintf // C compilers have this in stdio.h
13	#endif	14	#endif
…		…
15	// some old perls do not have this, try to make it work, no	16	// some old perls do not have this, try to make it work, no
16	// guarentees, though. if it breaks, you get to keep the pieces.	17	// guarentees, though. if it breaks, you get to keep the pieces.
17	#ifndef UTF8_MAXBYTES	18	#ifndef UTF8_MAXBYTES
18	# define UTF8_MAXBYTES 13	19	# define UTF8_MAXBYTES 13
19	#endif	20	#endif
		21
		22	#define IVUV_MAXCHARS (sizeof (UV) * CHAR_BIT * 28 / 93 + 2)
20		23
21	#define F_ASCII 0x00000001UL	24	#define F_ASCII 0x00000001UL
22	#define F_LATIN1 0x00000002UL	25	#define F_LATIN1 0x00000002UL
23	#define F_UTF8 0x00000004UL	26	#define F_UTF8 0x00000004UL
24	#define F_INDENT 0x00000008UL	27	#define F_INDENT 0x00000008UL
…		…
28	#define F_ALLOW_NONREF 0x00000100UL	31	#define F_ALLOW_NONREF 0x00000100UL
29	#define F_SHRINK 0x00000200UL	32	#define F_SHRINK 0x00000200UL
30	#define F_ALLOW_BLESSED 0x00000400UL	33	#define F_ALLOW_BLESSED 0x00000400UL
31	#define F_CONV_BLESSED 0x00000800UL	34	#define F_CONV_BLESSED 0x00000800UL
32	#define F_RELAXED 0x00001000UL	35	#define F_RELAXED 0x00001000UL
33		36	#define F_ALLOW_UNKNOWN 0x00002000UL
34	#define F_MAXDEPTH 0xf8000000UL
35	#define S_MAXDEPTH 27
36	#define F_MAXSIZE 0x01f00000UL
37	#define S_MAXSIZE 20
38	#define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing	37	#define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing
39		38
40	#define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH))
41	#define DEC_SIZE(flags) (1UL << ((flags & F_MAXSIZE ) >> S_MAXSIZE ))
42
43	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER	39	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER
44	#define F_DEFAULT (9UL << S_MAXDEPTH)
45		40
46	#define INIT_SIZE 32 // initial scalar size to be allocated	41	#define INIT_SIZE 32 // initial scalar size to be allocated
47	#define INDENT_STEP 3 // spaces per indentation level	42	#define INDENT_STEP 3 // spaces per indentation level
48		43
49	#define SHORT_STRING_LEN 16384 // special-case strings of up to this size	44	#define SHORT_STRING_LEN 16384 // special-case strings of up to this size
50		45
51	#define SB do {	46	#define SB do {
52	#define SE } while (0)	47	#define SE } while (0)
53		48
54	#if __GNUC__ >= 3	49	#if __GNUC__ >= 3
55	# define expect(expr,value) __builtin_expect ((expr),(value))	50	# define expect(expr,value) __builtin_expect ((expr), (value))
56	# define inline inline	51	# define INLINE static inline
57	#else	52	#else
58	# define expect(expr,value) (expr)	53	# define expect(expr,value) (expr)
59	# define inline static	54	# define INLINE static
60	#endif	55	#endif
61		56
62	#define expect_false(expr) expect ((expr) != 0, 0)	57	#define expect_false(expr) expect ((expr) != 0, 0)
63	#define expect_true(expr) expect ((expr) != 0, 1)	58	#define expect_true(expr) expect ((expr) != 0, 1)
		59
		60	#define IN_RANGE_INC(type,val,beg,end) \
		61	((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \
		62	<= (unsigned type)((unsigned type)(end) - (unsigned type)(beg)))
		63
		64	#define ERR_NESTING_EXCEEDED "json text or perl structure exceeds maximum nesting level (max_depth set too low?)"
64		65
65	#ifdef USE_ITHREADS	66	#ifdef USE_ITHREADS
66	# define JSON_SLOW 1	67	# define JSON_SLOW 1
67	# define JSON_STASH (json_stash ? json_stash : gv_stashpv ("JSON::XS", 1))	68	# define JSON_STASH (json_stash ? json_stash : gv_stashpv ("JSON::XS", 1))
68	#else	69	#else
…		…
71	#endif	72	#endif
72		73
73	static HV json_stash, json_boolean_stash; // JSON::XS::	74	static HV json_stash, json_boolean_stash; // JSON::XS::
74	static SV json_true, json_false;	75	static SV json_true, json_false;
75		76
		77	enum {
		78	INCR_M_WS = 0, // initial whitespace skipping, must be 0
		79	INCR_M_STR, // inside string
		80	INCR_M_BS, // inside backslash
		81	INCR_M_JSON // outside anything, count nesting
		82	};
		83
		84	#define INCR_DONE(json) ((json)->incr_nest <= 0 && (json)->incr_mode == INCR_M_JSON)
		85
76	typedef struct {	86	typedef struct {
77	U32 flags;	87	U32 flags;
		88	U32 max_depth;
		89	STRLEN max_size;
		90
78	SV *cb_object;	91	SV *cb_object;
79	HV *cb_sk_object;	92	HV *cb_sk_object;
		93
		94	// for the incremental parser
		95	SV *incr_text; // the source text so far
		96	STRLEN incr_pos; // the current offset into the text
		97	int incr_nest; // {[]}-nesting level
		98	unsigned char incr_mode;
80	} JSON;	99	} JSON;
		100
		101	INLINE void
		102	json_init (JSON *json)
		103	{
		104	Zero (json, 1, JSON);
		105	json->max_depth = 512;
		106	}
81		107
82	/////////////////////////////////////////////////////////////////////////////	108	/////////////////////////////////////////////////////////////////////////////
83	// utility functions	109	// utility functions
84		110
85	inline void	111	INLINE SV *
		112	get_bool (const char *name)
		113	{
		114	SV *sv = get_sv (name, 1);
		115
		116	SvREADONLY_on (sv);
		117	SvREADONLY_on (SvRV (sv));
		118
		119	return sv;
		120	}
		121
		122	INLINE void
86	shrink (SV *sv)	123	shrink (SV *sv)
87	{	124	{
88	sv_utf8_downgrade (sv, 1);	125	sv_utf8_downgrade (sv, 1);
		126
89	if (SvLEN (sv) > SvCUR (sv) + 1)	127	if (SvLEN (sv) > SvCUR (sv) + 1)
90	{	128	{
91	#ifdef SvPV_shrink_to_cur	129	#ifdef SvPV_shrink_to_cur
92	SvPV_shrink_to_cur (sv);	130	SvPV_shrink_to_cur (sv);
93	#elif defined (SvPV_renew)	131	#elif defined (SvPV_renew)
…		…
99	// decode an utf-8 character and return it, or (UV)-1 in	137	// decode an utf-8 character and return it, or (UV)-1 in
100	// case of an error.	138	// case of an error.
101	// we special-case "safe" characters from U+80 .. U+7FF,	139	// we special-case "safe" characters from U+80 .. U+7FF,
102	// but use the very good perl function to parse anything else.	140	// but use the very good perl function to parse anything else.
103	// note that we never call this function for a ascii codepoints	141	// note that we never call this function for a ascii codepoints
104	inline UV	142	INLINE UV
105	decode_utf8 (unsigned char s, STRLEN len, STRLEN clen)	143	decode_utf8 (unsigned char s, STRLEN len, STRLEN clen)
106	{	144	{
107	if (expect_false (s[0] > 0xdf \|\| s[0] < 0xc2))	145	if (expect_true (len >= 2
108	return utf8n_to_uvuni (s, len, clen, UTF8_CHECK_ONLY);	146	&& IN_RANGE_INC (char, s[0], 0xc2, 0xdf)
109	else if (len > 1 && s[1] >= 0x80 && s[1] <= 0xbf)	147	&& IN_RANGE_INC (char, s[1], 0x80, 0xbf)))
110	{	148	{
111	*clen = 2;	149	*clen = 2;
112	return ((s[0] & 0x1f) << 6) \| (s[1] & 0x3f);	150	return ((s[0] & 0x1f) << 6) \| (s[1] & 0x3f);
113	}	151	}
114	else	152	else
115	{	153	return utf8n_to_uvuni (s, len, clen, UTF8_CHECK_ONLY);
116	*clen = (STRLEN)-1;	154	}
117	return (UV)-1;	155
118	}	156	// likewise for encoding, also never called for ascii codepoints
		157	// this function takes advantage of this fact, although current gccs
		158	// seem to optimise the check for >= 0x80 away anyways
		159	INLINE unsigned char *
		160	encode_utf8 (unsigned char *s, UV ch)
		161	{
		162	if (expect_false (ch < 0x000080))
		163	*s++ = ch;
		164	else if (expect_true (ch < 0x000800))
		165	*s++ = 0xc0 \| ( ch >> 6),
		166	*s++ = 0x80 \| ( ch & 0x3f);
		167	else if ( ch < 0x010000)
		168	*s++ = 0xe0 \| ( ch >> 12),
		169	*s++ = 0x80 \| ((ch >> 6) & 0x3f),
		170	*s++ = 0x80 \| ( ch & 0x3f);
		171	else if ( ch < 0x110000)
		172	*s++ = 0xf0 \| ( ch >> 18),
		173	*s++ = 0x80 \| ((ch >> 12) & 0x3f),
		174	*s++ = 0x80 \| ((ch >> 6) & 0x3f),
		175	*s++ = 0x80 \| ( ch & 0x3f);
		176
		177	return s;
119	}	178	}
120		179
121	/////////////////////////////////////////////////////////////////////////////	180	/////////////////////////////////////////////////////////////////////////////
122	// encoder	181	// encoder
123		182
…		…
127	char *cur; // SvPVX (sv) + current output position	186	char *cur; // SvPVX (sv) + current output position
128	char *end; // SvEND (sv)	187	char *end; // SvEND (sv)
129	SV *sv; // result scalar	188	SV *sv; // result scalar
130	JSON json;	189	JSON json;
131	U32 indent; // indentation level	190	U32 indent; // indentation level
132	U32 maxdepth; // max. indentation/recursion level	191	UV limit; // escape character values >= this value when encoding
133	} enc_t;	192	} enc_t;
134		193
135	inline void	194	INLINE void
136	need (enc_t *enc, STRLEN len)	195	need (enc_t *enc, STRLEN len)
137	{	196	{
138	if (expect_false (enc->cur + len >= enc->end))	197	if (expect_false (enc->cur + len >= enc->end))
139	{	198	{
140	STRLEN cur = enc->cur - SvPVX (enc->sv);	199	STRLEN cur = enc->cur - SvPVX (enc->sv);
…		…
142	enc->cur = SvPVX (enc->sv) + cur;	201	enc->cur = SvPVX (enc->sv) + cur;
143	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;	202	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;
144	}	203	}
145	}	204	}
146		205
147	inline void	206	INLINE void
148	encode_ch (enc_t *enc, char ch)	207	encode_ch (enc_t *enc, char ch)
149	{	208	{
150	need (enc, 1);	209	need (enc, 1);
151	*enc->cur++ = ch;	210	*enc->cur++ = ch;
152	}	211	}
…		…
206	{	265	{
207	uch = ch;	266	uch = ch;
208	clen = 1;	267	clen = 1;
209	}	268	}
210		269
211	if (uch > 0x10FFFFUL)	270	if (uch < 0x80/0x20/ \|\| uch >= enc->limit)
212	croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);
213
214	if (uch < 0x80 \|\| enc->json.flags & F_ASCII \|\| (enc->json.flags & F_LATIN1 && uch > 0xFF))
215	{	271	{
216	if (uch > 0xFFFFUL)	272	if (uch >= 0x10000UL)
217	{	273	{
		274	if (uch >= 0x110000UL)
		275	croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);
		276
218	need (enc, len += 11);	277	need (enc, len += 11);
219	sprintf (enc->cur, "\\u%04x\\u%04x",	278	sprintf (enc->cur, "\\u%04x\\u%04x",
220	(int)((uch - 0x10000) / 0x400 + 0xD800),	279	(int)((uch - 0x10000) / 0x400 + 0xD800),
221	(int)((uch - 0x10000) % 0x400 + 0xDC00));	280	(int)((uch - 0x10000) % 0x400 + 0xDC00));
222	enc->cur += 12;	281	enc->cur += 12;
…		…
250	while (--clen);	309	while (--clen);
251	}	310	}
252	else	311	else
253	{	312	{
254	need (enc, len += UTF8_MAXBYTES - 1); // never more than 11 bytes needed	313	need (enc, len += UTF8_MAXBYTES - 1); // never more than 11 bytes needed
255	enc->cur = uvuni_to_utf8_flags (enc->cur, uch, 0);	314	enc->cur = encode_utf8 (enc->cur, uch);
256	++str;	315	++str;
257	}	316	}
258	}	317	}
259	}	318	}
260	}	319	}
261		320
262	--len;	321	--len;
263	}	322	}
264	}	323	}
265		324
266	inline void	325	INLINE void
267	encode_indent (enc_t *enc)	326	encode_indent (enc_t *enc)
268	{	327	{
269	if (enc->json.flags & F_INDENT)	328	if (enc->json.flags & F_INDENT)
270	{	329	{
271	int spaces = enc->indent * INDENT_STEP;	330	int spaces = enc->indent * INDENT_STEP;
…		…
274	memset (enc->cur, ' ', spaces);	333	memset (enc->cur, ' ', spaces);
275	enc->cur += spaces;	334	enc->cur += spaces;
276	}	335	}
277	}	336	}
278		337
279	inline void	338	INLINE void
280	encode_space (enc_t *enc)	339	encode_space (enc_t *enc)
281	{	340	{
282	need (enc, 1);	341	need (enc, 1);
283	encode_ch (enc, ' ');	342	encode_ch (enc, ' ');
284	}	343	}
285		344
286	inline void	345	INLINE void
287	encode_nl (enc_t *enc)	346	encode_nl (enc_t *enc)
288	{	347	{
289	if (enc->json.flags & F_INDENT)	348	if (enc->json.flags & F_INDENT)
290	{	349	{
291	need (enc, 1);	350	need (enc, 1);
292	encode_ch (enc, '\n');	351	encode_ch (enc, '\n');
293	}	352	}
294	}	353	}
295		354
296	inline void	355	INLINE void
297	encode_comma (enc_t *enc)	356	encode_comma (enc_t *enc)
298	{	357	{
299	encode_ch (enc, ',');	358	encode_ch (enc, ',');
300		359
301	if (enc->json.flags & F_INDENT)	360	if (enc->json.flags & F_INDENT)
…		…
309	static void	368	static void
310	encode_av (enc_t enc, AV av)	369	encode_av (enc_t enc, AV av)
311	{	370	{
312	int i, len = av_len (av);	371	int i, len = av_len (av);
313		372
314	if (enc->indent >= enc->maxdepth)	373	if (enc->indent >= enc->json.max_depth)
315	croak ("data structure too deep (hit recursion limit)");	374	croak (ERR_NESTING_EXCEEDED);
316		375
317	encode_ch (enc, '[');	376	encode_ch (enc, '[');
318		377
319	if (len >= 0)	378	if (len >= 0)
320	{	379	{
…		…
394		453
395	static void	454	static void
396	encode_hv (enc_t enc, HV hv)	455	encode_hv (enc_t enc, HV hv)
397	{	456	{
398	HE *he;	457	HE *he;
399	int count;
400		458
401	if (enc->indent >= enc->maxdepth)	459	if (enc->indent >= enc->json.max_depth)
402	croak ("data structure too deep (hit recursion limit)");	460	croak (ERR_NESTING_EXCEEDED);
403		461
404	encode_ch (enc, '{');	462	encode_ch (enc, '{');
405		463
406	// for canonical output we have to sort by keys first	464	// for canonical output we have to sort by keys first
407	// actually, this is mostly due to the stupid so-called	465	// actually, this is mostly due to the stupid so-called
…		…
588		646
589	if (len == 1 && *pv == '1')	647	if (len == 1 && *pv == '1')
590	encode_str (enc, "true", 4, 0);	648	encode_str (enc, "true", 4, 0);
591	else if (len == 1 && *pv == '0')	649	else if (len == 1 && *pv == '0')
592	encode_str (enc, "false", 5, 0);	650	encode_str (enc, "false", 5, 0);
		651	else if (enc->json.flags & F_ALLOW_UNKNOWN)
		652	encode_str (enc, "null", 4, 0);
593	else	653	else
594	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",	654	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",
595	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	655	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
596	}	656	}
		657	else if (enc->json.flags & F_ALLOW_UNKNOWN)
		658	encode_str (enc, "null", 4, 0);
597	else	659	else
598	croak ("encountered %s, but JSON can only represent references to arrays or hashes",	660	croak ("encountered %s, but JSON can only represent references to arrays or hashes",
599	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	661	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
600	}	662	}
601		663
…		…
619	Gconvert (SvNVX (sv), NV_DIG, 0, enc->cur);	681	Gconvert (SvNVX (sv), NV_DIG, 0, enc->cur);
620	enc->cur += strlen (enc->cur);	682	enc->cur += strlen (enc->cur);
621	}	683	}
622	else if (SvIOKp (sv))	684	else if (SvIOKp (sv))
623	{	685	{
624	// we assume we can always read an IV as a UV	686	// we assume we can always read an IV as a UV and vice versa
625	if (SvUV (sv) & ~(UV)0x7fff)	687	// we assume two's complement
626	{	688	// we assume no aliasing issues in the union
627	// large integer, use the (rather slow) snprintf way.	689	if (SvIsUV (sv) ? SvUVX (sv) <= 59000
628	need (enc, sizeof (UV) * 3);	690	: SvIVX (sv) <= 59000 && SvIVX (sv) >= -59000)
629	enc->cur +=
630	SvIsUV(sv)
631	? snprintf (enc->cur, sizeof (UV) * 3, "%"UVuf, (UV)SvUVX (sv))
632	: snprintf (enc->cur, sizeof (UV) * 3, "%"IVdf, (IV)SvIVX (sv));
633	}
634	else
635	{	691	{
636	// optimise the "small number case"	692	// optimise the "small number case"
637	// code will likely be branchless and use only a single multiplication	693	// code will likely be branchless and use only a single multiplication
		694	// works for numbers up to 59074
638	I32 i = SvIV (sv);	695	I32 i = SvIVX (sv);
639	U32 u;	696	U32 u;
640	char digit, nz = 0;	697	char digit, nz = 0;
641		698
642	need (enc, 6);	699	need (enc, 6);
643		700
…		…
649		706
650	// now output digit by digit, each time masking out the integer part	707	// now output digit by digit, each time masking out the integer part
651	// and multiplying by 5 while moving the decimal point one to the right,	708	// and multiplying by 5 while moving the decimal point one to the right,
652	// resulting in a net multiplication by 10.	709	// resulting in a net multiplication by 10.
653	// we always write the digit to memory but conditionally increment	710	// we always write the digit to memory but conditionally increment
654	// the pointer, to ease the usage of conditional move instructions.	711	// the pointer, to enable the use of conditional move instructions.
655	digit = u >> 28; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0xfffffff) 5;	712	digit = u >> 28; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0xfffffffUL) 5;
656	digit = u >> 27; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x7ffffff) 5;	713	digit = u >> 27; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x7ffffffUL) 5;
657	digit = u >> 26; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x3ffffff) 5;	714	digit = u >> 26; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x3ffffffUL) 5;
658	digit = u >> 25; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x1ffffff) 5;	715	digit = u >> 25; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x1ffffffUL) 5;
659	digit = u >> 24; *enc->cur = digit + '0'; enc->cur += 1; // correctly generate '0'	716	digit = u >> 24; *enc->cur = digit + '0'; enc->cur += 1; // correctly generate '0'
660	}	717	}
		718	else
		719	{
		720	// large integer, use the (rather slow) snprintf way.
		721	need (enc, IVUV_MAXCHARS);
		722	enc->cur +=
		723	SvIsUV(sv)
		724	? snprintf (enc->cur, IVUV_MAXCHARS, "%"UVuf, (UV)SvUVX (sv))
		725	: snprintf (enc->cur, IVUV_MAXCHARS, "%"IVdf, (IV)SvIVX (sv));
		726	}
661	}	727	}
662	else if (SvROK (sv))	728	else if (SvROK (sv))
663	encode_rv (enc, SvRV (sv));	729	encode_rv (enc, SvRV (sv));
664	else if (!SvOK (sv))	730	else if (!SvOK (sv) \|\| enc->json.flags & F_ALLOW_UNKNOWN)
665	encode_str (enc, "null", 4, 0);	731	encode_str (enc, "null", 4, 0);
666	else	732	else
667	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",	733	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",
668	SvPV_nolen (sv), SvFLAGS (sv));	734	SvPV_nolen (sv), SvFLAGS (sv));
669	}	735	}
…		…
679	enc.json = *json;	745	enc.json = *json;
680	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	746	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
681	enc.cur = SvPVX (enc.sv);	747	enc.cur = SvPVX (enc.sv);
682	enc.end = SvEND (enc.sv);	748	enc.end = SvEND (enc.sv);
683	enc.indent = 0;	749	enc.indent = 0;
684	enc.maxdepth = DEC_DEPTH (enc.json.flags);	750	enc.limit = enc.json.flags & F_ASCII ? 0x000080UL
		751	: enc.json.flags & F_LATIN1 ? 0x000100UL
		752	: 0x110000UL;
685		753
686	SvPOK_only (enc.sv);	754	SvPOK_only (enc.sv);
687	encode_sv (&enc, scalar);	755	encode_sv (&enc, scalar);
688		756
689	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));	757	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));
…		…
710	JSON json;	778	JSON json;
711	U32 depth; // recursion depth	779	U32 depth; // recursion depth
712	U32 maxdepth; // recursion depth limit	780	U32 maxdepth; // recursion depth limit
713	} dec_t;	781	} dec_t;
714		782
715	inline void	783	INLINE void
716	decode_comment (dec_t *dec)	784	decode_comment (dec_t *dec)
717	{	785	{
718	// only '#'-style comments allowed a.t.m.	786	// only '#'-style comments allowed a.t.m.
719		787
720	while (dec->cur && dec->cur != 0x0a && *dec->cur != 0x0d)	788	while (dec->cur && dec->cur != 0x0a && *dec->cur != 0x0d)
721	++dec->cur;	789	++dec->cur;
722	}	790	}
723		791
724	inline void	792	INLINE void
725	decode_ws (dec_t *dec)	793	decode_ws (dec_t *dec)
726	{	794	{
727	for (;;)	795	for (;;)
728	{	796	{
729	char ch = *dec->cur;	797	char ch = *dec->cur;
…		…
753	if (*dec->cur != ch) \	821	if (*dec->cur != ch) \
754	ERR (# ch " expected"); \	822	ERR (# ch " expected"); \
755	++dec->cur; \	823	++dec->cur; \
756	SE	824	SE
757		825
758	#define DEC_INC_DEPTH if (++dec->depth > dec->maxdepth) ERR ("json datastructure exceeds maximum nesting level (set a higher max_depth)")	826	#define DEC_INC_DEPTH if (++dec->depth > dec->json.max_depth) ERR (ERR_NESTING_EXCEEDED)
759	#define DEC_DEC_DEPTH --dec->depth	827	#define DEC_DEC_DEPTH --dec->depth
760		828
761	static SV decode_sv (dec_t dec);	829	static SV decode_sv (dec_t dec);
762		830
763	static signed char decode_hexdigit[256];	831	static signed char decode_hexdigit[256];
…		…
855		923
856	if (hi >= 0x80)	924	if (hi >= 0x80)
857	{	925	{
858	utf8 = 1;	926	utf8 = 1;
859		927
860	cur = (char *)uvuni_to_utf8_flags (cur, hi, 0);	928	cur = encode_utf8 (cur, hi);
861	}	929	}
862	else	930	else
863	*cur++ = hi;	931	*cur++ = hi;
864	}	932	}
865	break;	933	break;
…		…
867	default:	935	default:
868	--dec_cur;	936	--dec_cur;
869	ERR ("illegal backslash escape sequence in string");	937	ERR ("illegal backslash escape sequence in string");
870	}	938	}
871	}	939	}
872	else if (expect_true (ch >= 0x20 && ch <= 0x7f))	940	else if (expect_true (ch >= 0x20 && ch < 0x80))
873	*cur++ = ch;	941	*cur++ = ch;
874	else if (ch >= 0x80)	942	else if (ch >= 0x80)
875	{	943	{
876	STRLEN clen;	944	STRLEN clen;
877	UV uch;	945	UV uch;
…		…
1135	char *p = dec->cur;	1203	char *p = dec->cur;
1136	char *e = p + 24; // only try up to 24 bytes	1204	char *e = p + 24; // only try up to 24 bytes
1137		1205
1138	for (;;)	1206	for (;;)
1139	{	1207	{
1140	// the >= 0x80 is true on most architectures	1208	// the >= 0x80 is false on most architectures
1141	if (p == e \|\| p < 0x20 \|\| p >= 0x80 \|\| *p == '\\')	1209	if (p == e \|\| p < 0x20 \|\| p >= 0x80 \|\| *p == '\\')
1142	{	1210	{
1143	// slow path, back up and use decode_str	1211	// slow path, back up and use decode_str
1144	SV *key = decode_str (dec);	1212	SV *key = decode_str (dec);
1145	if (!key)	1213	if (!key)
…		…
1276		1344
1277	static SV *	1345	static SV *
1278	decode_sv (dec_t *dec)	1346	decode_sv (dec_t *dec)
1279	{	1347	{
1280	// the beauty of JSON: you need exactly one character lookahead	1348	// the beauty of JSON: you need exactly one character lookahead
1281	// to parse anything.	1349	// to parse everything.
1282	switch (*dec->cur)	1350	switch (*dec->cur)
1283	{	1351	{
1284	case '"': ++dec->cur; return decode_str (dec);	1352	case '"': ++dec->cur; return decode_str (dec);
1285	case '[': ++dec->cur; return decode_av (dec);	1353	case '[': ++dec->cur; return decode_av (dec);
1286	case '{': ++dec->cur; return decode_hv (dec);	1354	case '{': ++dec->cur; return decode_hv (dec);
1287		1355
1288	case '-':	1356	case '-':
1289	case '0': case '1': case '2': case '3': case '4':	1357	case '0': case '1': case '2': case '3': case '4':
1290	case '5': case '6': case '7': case '8': case '9':	1358	case '5': case '6': case '7': case '8': case '9':
1291	return decode_num (dec);	1359	return decode_num (dec);
…		…
1293	case 't':	1361	case 't':
1294	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))	1362	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))
1295	{	1363	{
1296	dec->cur += 4;	1364	dec->cur += 4;
1297	#if JSON_SLOW	1365	#if JSON_SLOW
1298	json_true = get_sv ("JSON::XS::true", 1); SvREADONLY_on (json_true);	1366	json_true = get_bool ("JSON::XS::true");
1299	#endif	1367	#endif
1300	return SvREFCNT_inc (json_true);	1368	return newSVsv (json_true);
1301	}	1369	}
1302	else	1370	else
1303	ERR ("'true' expected");	1371	ERR ("'true' expected");
1304		1372
1305	break;	1373	break;
…		…
1307	case 'f':	1375	case 'f':
1308	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))	1376	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))
1309	{	1377	{
1310	dec->cur += 5;	1378	dec->cur += 5;
1311	#if JSON_SLOW	1379	#if JSON_SLOW
1312	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);	1380	json_false = get_bool ("JSON::XS::false");
1313	#endif	1381	#endif
1314	return SvREFCNT_inc (json_false);	1382	return newSVsv (json_false);
1315	}	1383	}
1316	else	1384	else
1317	ERR ("'false' expected");	1385	ERR ("'false' expected");
1318		1386
1319	break;	1387	break;
…		…
1337	fail:	1405	fail:
1338	return 0;	1406	return 0;
1339	}	1407	}
1340		1408
1341	static SV *	1409	static SV *
1342	decode_json (SV string, JSON json, UV *offset_return)	1410	decode_json (SV string, JSON json, STRLEN *offset_return)
1343	{	1411	{
1344	dec_t dec;	1412	dec_t dec;
1345	UV offset;	1413	STRLEN offset;
1346	SV *sv;	1414	SV *sv;
1347		1415
1348	SvGETMAGIC (string);	1416	SvGETMAGIC (string);
1349	SvUPGRADE (string, SVt_PV);	1417	SvUPGRADE (string, SVt_PV);
1350		1418
1351	if (json->flags & F_MAXSIZE && SvCUR (string) > DEC_SIZE (json->flags))	1419	/* work around a bug in perl 5.10, which causes SvCUR to fail an
		1420	* assertion with -DDEBUGGING, although SvCUR is documented to
		1421	* return the xpv_cur field which certainly exists after upgrading.
		1422	* according to nicholas clark, calling SvPOK fixes this.
		1423	* But it doesn't fix it, so try another workaround, call SvPV_nolen
		1424	* and hope for the best.
		1425	*/
		1426	#ifdef DEBUGGING
		1427	SvPV_nolen (string);
		1428	#endif
		1429
		1430	if (SvCUR (string) > json->max_size && json->max_size)
1352	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",	1431	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",
1353	(unsigned long)SvCUR (string), (unsigned long)DEC_SIZE (json->flags));	1432	(unsigned long)SvCUR (string), (unsigned long)json->max_size);
1354		1433
1355	if (json->flags & F_UTF8)	1434	if (json->flags & F_UTF8)
1356	sv_utf8_downgrade (string, 0);	1435	sv_utf8_downgrade (string, 0);
1357	else	1436	else
1358	sv_utf8_upgrade (string);	1437	sv_utf8_upgrade (string);
1359		1438
1360	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP	1439	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP
1361		1440
1362	dec.json = *json;	1441	dec.json = *json;
1363	dec.cur = SvPVX (string);	1442	dec.cur = SvPVX (string);
1364	dec.end = SvEND (string);	1443	dec.end = SvEND (string);
1365	dec.err = 0;	1444	dec.err = 0;
1366	dec.depth = 0;	1445	dec.depth = 0;
1367	dec.maxdepth = DEC_DEPTH (dec.json.flags);
1368		1446
1369	if (dec.json.cb_object \|\| dec.json.cb_sk_object)	1447	if (dec.json.cb_object \|\| dec.json.cb_sk_object)
1370	dec.json.flags \|= F_HOOK;	1448	dec.json.flags \|= F_HOOK;
1371		1449
1372	*dec.end = 0; // this should basically be a nop, too, but make sure it's there	1450	*dec.end = 0; // this should basically be a nop, too, but make sure it's there
…		…
1423		1501
1424	return sv;	1502	return sv;
1425	}	1503	}
1426		1504
1427	/////////////////////////////////////////////////////////////////////////////	1505	/////////////////////////////////////////////////////////////////////////////
		1506	// incremental parser
		1507
		1508	static void
		1509	incr_parse (JSON *self)
		1510	{
		1511	const char *p = SvPVX (self->incr_text) + self->incr_pos;
		1512
		1513	for (;;)
		1514	{
		1515	//printf ("loop pod %d p<%c><%s>, mode %d nest %d\n", p - SvPVX (self->incr_text), p, p, self->incr_mode, self->incr_nest);//D
		1516	switch (self->incr_mode)
		1517	{
		1518	// only used for intiial whitespace skipping
		1519	case INCR_M_WS:
		1520	for (;;)
		1521	{
		1522	if (*p > 0x20)
		1523	{
		1524	self->incr_mode = INCR_M_JSON;
		1525	goto incr_m_json;
		1526	}
		1527	else if (!*p)
		1528	goto interrupt;
		1529
		1530	++p;
		1531	}
		1532
		1533	// skip a single char inside a string (for \\-processing)
		1534	case INCR_M_BS:
		1535	if (!*p)
		1536	goto interrupt;
		1537
		1538	++p;
		1539	self->incr_mode = INCR_M_STR;
		1540	goto incr_m_str;
		1541
		1542	// inside a string
		1543	case INCR_M_STR:
		1544	incr_m_str:
		1545	for (;;)
		1546	{
		1547	if (*p == '"')
		1548	{
		1549	++p;
		1550	self->incr_mode = INCR_M_JSON;
		1551
		1552	if (!self->incr_nest)
		1553	goto interrupt;
		1554
		1555	goto incr_m_json;
		1556	}
		1557	else if (*p == '\\')
		1558	{
		1559	++p; // "virtually" consumes character after \
		1560
		1561	if (!*p) // if at end of string we have to switch modes
		1562	{
		1563	self->incr_mode = INCR_M_BS;
		1564	goto interrupt;
		1565	}
		1566	}
		1567	else if (!*p)
		1568	goto interrupt;
		1569
		1570	++p;
		1571	}
		1572
		1573	// after initial ws, outside string
		1574	case INCR_M_JSON:
		1575	incr_m_json:
		1576	for (;;)
		1577	{
		1578	switch (*p++)
		1579	{
		1580	case 0:
		1581	--p;
		1582	goto interrupt;
		1583
		1584	case 0x09:
		1585	case 0x0a:
		1586	case 0x0d:
		1587	case 0x20:
		1588	if (!self->incr_nest)
		1589	{
		1590	--p; // do not eat the whitespace, let the next round do it
		1591	goto interrupt;
		1592	}
		1593	break;
		1594
		1595	case '"':
		1596	self->incr_mode = INCR_M_STR;
		1597	goto incr_m_str;
		1598
		1599	case '[':
		1600	case '{':
		1601	if (++self->incr_nest > self->max_depth)
		1602	croak (ERR_NESTING_EXCEEDED);
		1603	break;
		1604
		1605	case ']':
		1606	case '}':
		1607	if (--self->incr_nest <= 0)
		1608	goto interrupt;
		1609	}
		1610	}
		1611	}
		1612
		1613	modechange:
		1614	;
		1615	}
		1616
		1617	interrupt:
		1618	self->incr_pos = p - SvPVX (self->incr_text);
		1619	//printf ("return pos %d mode %d nest %d\n", self->incr_pos, self->incr_mode, self->incr_nest);//D
		1620	}
		1621
		1622	/////////////////////////////////////////////////////////////////////////////
1428	// XS interface functions	1623	// XS interface functions
1429		1624
1430	MODULE = JSON::XS PACKAGE = JSON::XS	1625	MODULE = JSON::XS PACKAGE = JSON::XS
1431		1626
1432	BOOT:	1627	BOOT:
…		…
1441	: -1;	1636	: -1;
1442		1637
1443	json_stash = gv_stashpv ("JSON::XS" , 1);	1638	json_stash = gv_stashpv ("JSON::XS" , 1);
1444	json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1);	1639	json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1);
1445		1640
1446	json_true = get_sv ("JSON::XS::true" , 1); SvREADONLY_on (json_true );	1641	json_true = get_bool ("JSON::XS::true");
1447	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);	1642	json_false = get_bool ("JSON::XS::false");
1448	}	1643	}
1449		1644
1450	PROTOTYPES: DISABLE	1645	PROTOTYPES: DISABLE
1451		1646
1452	void CLONE (...)	1647	void CLONE (...)
…		…
1457	void new (char *klass)	1652	void new (char *klass)
1458	PPCODE:	1653	PPCODE:
1459	{	1654	{
1460	SV *pv = NEWSV (0, sizeof (JSON));	1655	SV *pv = NEWSV (0, sizeof (JSON));
1461	SvPOK_only (pv);	1656	SvPOK_only (pv);
1462	Zero (SvPVX (pv), 1, JSON);	1657	json_init ((JSON *)SvPVX (pv));
1463	((JSON *)SvPVX (pv))->flags = F_DEFAULT;
1464	XPUSHs (sv_2mortal (sv_bless (	1658	XPUSHs (sv_2mortal (sv_bless (
1465	newRV_noinc (pv),	1659	newRV_noinc (pv),
1466	strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1)	1660	strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1)
1467	)));	1661	)));
1468	}	1662	}
…		…
1480	allow_nonref = F_ALLOW_NONREF	1674	allow_nonref = F_ALLOW_NONREF
1481	shrink = F_SHRINK	1675	shrink = F_SHRINK
1482	allow_blessed = F_ALLOW_BLESSED	1676	allow_blessed = F_ALLOW_BLESSED
1483	convert_blessed = F_CONV_BLESSED	1677	convert_blessed = F_CONV_BLESSED
1484	relaxed = F_RELAXED	1678	relaxed = F_RELAXED
		1679	allow_unknown = F_ALLOW_UNKNOWN
1485	PPCODE:	1680	PPCODE:
1486	{	1681	{
1487	if (enable)	1682	if (enable)
1488	self->flags \|= ix;	1683	self->flags \|= ix;
1489	else	1684	else
…		…
1504	get_allow_nonref = F_ALLOW_NONREF	1699	get_allow_nonref = F_ALLOW_NONREF
1505	get_shrink = F_SHRINK	1700	get_shrink = F_SHRINK
1506	get_allow_blessed = F_ALLOW_BLESSED	1701	get_allow_blessed = F_ALLOW_BLESSED
1507	get_convert_blessed = F_CONV_BLESSED	1702	get_convert_blessed = F_CONV_BLESSED
1508	get_relaxed = F_RELAXED	1703	get_relaxed = F_RELAXED
		1704	get_allow_unknown = F_ALLOW_UNKNOWN
1509	PPCODE:	1705	PPCODE:
1510	XPUSHs (boolSV (self->flags & ix));	1706	XPUSHs (boolSV (self->flags & ix));
1511		1707
1512	void max_depth (JSON *self, UV max_depth = 0x80000000UL)	1708	void max_depth (JSON *self, U32 max_depth = 0x80000000UL)
1513	PPCODE:	1709	PPCODE:
1514	{	1710	self->max_depth = max_depth;
1515	UV log2 = 0;
1516
1517	if (max_depth > 0x80000000UL) max_depth = 0x80000000UL;
1518
1519	while ((1UL << log2) < max_depth)
1520	++log2;
1521
1522	self->flags = self->flags & ~F_MAXDEPTH \| (log2 << S_MAXDEPTH);
1523
1524	XPUSHs (ST (0));	1711	XPUSHs (ST (0));
1525	}
1526		1712
1527	U32 get_max_depth (JSON *self)	1713	U32 get_max_depth (JSON *self)
1528	CODE:	1714	CODE:
1529	RETVAL = DEC_DEPTH (self->flags);	1715	RETVAL = self->max_depth;
1530	OUTPUT:	1716	OUTPUT:
1531	RETVAL	1717	RETVAL
1532		1718
1533	void max_size (JSON *self, UV max_size = 0)	1719	void max_size (JSON *self, U32 max_size = 0)
1534	PPCODE:	1720	PPCODE:
1535	{	1721	self->max_size = max_size;
1536	UV log2 = 0;
1537
1538	if (max_size > 0x80000000UL) max_size = 0x80000000UL;
1539	if (max_size == 1) max_size = 2;
1540
1541	while ((1UL << log2) < max_size)
1542	++log2;
1543
1544	self->flags = self->flags & ~F_MAXSIZE \| (log2 << S_MAXSIZE);
1545
1546	XPUSHs (ST (0));	1722	XPUSHs (ST (0));
1547	}
1548		1723
1549	int get_max_size (JSON *self)	1724	int get_max_size (JSON *self)
1550	CODE:	1725	CODE:
1551	RETVAL = DEC_SIZE (self->flags);	1726	RETVAL = self->max_size;
1552	OUTPUT:	1727	OUTPUT:
1553	RETVAL	1728	RETVAL
1554		1729
1555	void filter_json_object (JSON self, SV cb = &PL_sv_undef)	1730	void filter_json_object (JSON self, SV cb = &PL_sv_undef)
1556	PPCODE:	1731	PPCODE:
…		…
1592	XPUSHs (decode_json (jsonstr, self, 0));	1767	XPUSHs (decode_json (jsonstr, self, 0));
1593		1768
1594	void decode_prefix (JSON self, SV jsonstr)	1769	void decode_prefix (JSON self, SV jsonstr)
1595	PPCODE:	1770	PPCODE:
1596	{	1771	{
1597	UV offset;	1772	STRLEN offset;
1598	EXTEND (SP, 2);	1773	EXTEND (SP, 2);
1599	PUSHs (decode_json (jsonstr, self, &offset));	1774	PUSHs (decode_json (jsonstr, self, &offset));
1600	PUSHs (sv_2mortal (newSVuv (offset)));	1775	PUSHs (sv_2mortal (newSVuv (offset)));
		1776	}
		1777
		1778	void incr_parse (JSON self, SV jsonstr = 0)
		1779	PPCODE:
		1780	{
		1781	if (!self->incr_text)
		1782	self->incr_text = newSVpvn ("", 0);
		1783
		1784	// append data, if any
		1785	if (jsonstr)
		1786	{
		1787	if (SvUTF8 (jsonstr) && !SvUTF8 (self->incr_text))
		1788	{
		1789	/* utf-8-ness differs, need to upgrade */
		1790	sv_utf8_upgrade (self->incr_text);
		1791
		1792	if (self->incr_pos)
		1793	self->incr_pos = utf8_hop ((U8 *)SvPVX (self->incr_text), self->incr_pos)
		1794	- (U8 *)SvPVX (self->incr_text);
		1795	}
		1796
		1797	{
		1798	STRLEN len;
		1799	const char *str = SvPV (jsonstr, len);
		1800	SvGROW (self->incr_text, SvCUR (self->incr_text) + len + 1);
		1801	Move (str, SvEND (self->incr_text), len, char);
		1802	SvCUR_set (self->incr_text, SvCUR (self->incr_text) + len);
		1803	*SvEND (self->incr_text) = 0; // this should basically be a nop, too, but make sure it's there
		1804	}
		1805	}
		1806
		1807	if (GIMME_V != G_VOID)
		1808	do
		1809	{
		1810	STRLEN offset;
		1811
		1812	if (!INCR_DONE (self))
		1813	{
		1814	incr_parse (self);
		1815
		1816	if (self->incr_pos > self->max_size && self->max_size)
		1817	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",
		1818	(unsigned long)self->incr_pos, (unsigned long)self->max_size);
		1819
		1820	if (!INCR_DONE (self))
		1821	break;
		1822	}
		1823
		1824	XPUSHs (decode_json (self->incr_text, self, &offset));
		1825
		1826	sv_chop (self->incr_text, SvPV_nolen (self->incr_text) + offset);
		1827	self->incr_pos -= offset;
		1828	self->incr_nest = 0;
		1829	self->incr_mode = 0;
		1830	}
		1831	while (GIMME_V == G_ARRAY);
		1832	}
		1833
		1834	SV incr_text (JSON self)
		1835	ATTRS: lvalue
		1836	CODE:
		1837	{
		1838	if (self->incr_pos)
		1839	croak ("incr_text can not be called when the incremental parser already started parsing");
		1840
		1841	RETVAL = self->incr_text ? SvREFCNT_inc (self->incr_text) : &PL_sv_undef;
		1842	}
		1843	OUTPUT:
		1844	RETVAL
		1845
		1846	void incr_skip (JSON *self)
		1847	CODE:
		1848	{
		1849	if (self->incr_pos)
		1850	{
		1851	sv_chop (self->incr_text, SvPV_nolen (self->incr_text) + self->incr_pos);
		1852	self->incr_pos = 0;
		1853	self->incr_nest = 0;
		1854	self->incr_mode = 0;
		1855	}
		1856	}
		1857
		1858	void incr_reset (JSON *self)
		1859	CODE:
		1860	{
		1861	SvREFCNT_dec (self->incr_text);
		1862	self->incr_text = 0;
		1863	self->incr_pos = 0;
		1864	self->incr_nest = 0;
		1865	self->incr_mode = 0;
1601	}	1866	}
1602		1867
1603	void DESTROY (JSON *self)	1868	void DESTROY (JSON *self)
1604	CODE:	1869	CODE:
1605	SvREFCNT_dec (self->cb_sk_object);	1870	SvREFCNT_dec (self->cb_sk_object);
1606	SvREFCNT_dec (self->cb_object);	1871	SvREFCNT_dec (self->cb_object);
		1872	SvREFCNT_dec (self->incr_text);
1607		1873
1608	PROTOTYPES: ENABLE	1874	PROTOTYPES: ENABLE
1609		1875
1610	void encode_json (SV *scalar)	1876	void encode_json (SV *scalar)
		1877	ALIAS:
		1878	to_json_ = 0
		1879	encode_json = F_UTF8
1611	PPCODE:	1880	PPCODE:
1612	{	1881	{
1613	JSON json = { F_DEFAULT \| F_UTF8 };	1882	JSON json;
		1883	json_init (&json);
		1884	json.flags \|= ix;
1614	XPUSHs (encode_json (scalar, &json));	1885	XPUSHs (encode_json (scalar, &json));
1615	}	1886	}
1616		1887
1617	void decode_json (SV *jsonstr)	1888	void decode_json (SV *jsonstr)
		1889	ALIAS:
		1890	from_json_ = 0
		1891	decode_json = F_UTF8
1618	PPCODE:	1892	PPCODE:
1619	{	1893	{
1620	JSON json = { F_DEFAULT \| F_UTF8 };	1894	JSON json;
		1895	json_init (&json);
		1896	json.flags \|= ix;
1621	XPUSHs (decode_json (jsonstr, &json, 0));	1897	XPUSHs (decode_json (jsonstr, &json, 0));
1622	}	1898	}
1623		1899
		1900

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Comparing JSON-XS/XS.xs (file contents): Revision 1.70 by root, Wed Mar 19 00:44:54 2008 UTC vs. Revision 1.89 by root, Sat Jul 19 04:21:32 2008 UTC

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Comparing JSON-XS/XS.xs (file contents):
Revision 1.70 by root, Wed Mar 19 00:44:54 2008 UTC vs.
Revision 1.89 by root, Sat Jul 19 04:21:32 2008 UTC