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Comparing JSON-XS/XS.xs (file contents):
Revision 1.37 by root, Wed Jun 6 17:49:01 2007 UTC vs.
Revision 1.76 by root, Thu Mar 20 00:56:37 2008 UTC

1	#include "EXTERN.h"	1	#include "EXTERN.h"
2	#include "perl.h"	2	#include "perl.h"
3	#include "XSUB.h"	3	#include "XSUB.h"
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>
		10	#include <float.h>
9		11
10	#if defined(__BORLANDC__) || defined(_MSC_VER)	12	#if defined(__BORLANDC__) || defined(_MSC_VER)
11	# define snprintf _snprintf // C compilers have this in stdio.h	13	# define snprintf _snprintf // C compilers have this in stdio.h
12	#endif	14	#endif
13		15
		16	// some old perls do not have this, try to make it work, no
		17	// guarentees, though. if it breaks, you get to keep the pieces.
		18	#ifndef UTF8_MAXBYTES
		19	# define UTF8_MAXBYTES 13
		20	#endif
		21
		22	#define IVUV_MAXCHARS (sizeof (UV) * CHAR_BIT * 28 / 93 + 2)
		23
14	#define F_ASCII 0x00000001UL	24	#define F_ASCII 0x00000001UL
15	#define F_LATIN1 0x00000002UL	25	#define F_LATIN1 0x00000002UL
16	#define F_UTF8 0x00000004UL	26	#define F_UTF8 0x00000004UL
17	#define F_INDENT 0x00000008UL	27	#define F_INDENT 0x00000008UL
18	#define F_CANONICAL 0x00000010UL	28	#define F_CANONICAL 0x00000010UL
19	#define F_SPACE_BEFORE 0x00000020UL	29	#define F_SPACE_BEFORE 0x00000020UL
20	#define F_SPACE_AFTER 0x00000040UL	30	#define F_SPACE_AFTER 0x00000040UL
21	#define F_ALLOW_NONREF 0x00000100UL	31	#define F_ALLOW_NONREF 0x00000100UL
22	#define F_SHRINK 0x00000200UL	32	#define F_SHRINK 0x00000200UL
		33	#define F_ALLOW_BLESSED 0x00000400UL
		34	#define F_CONV_BLESSED 0x00000800UL
		35	#define F_RELAXED 0x00001000UL
		36
23	#define F_MAXDEPTH 0xf8000000UL	37	#define F_MAXDEPTH 0xf8000000UL
24	#define S_MAXDEPTH 27	38	#define S_MAXDEPTH 27
		39	#define F_MAXSIZE 0x01f00000UL
		40	#define S_MAXSIZE 20
		41	#define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing
25		42
26	#define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH))	43	#define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH))
27		44	#define DEC_SIZE(flags) (1UL << ((flags & F_MAXSIZE ) >> S_MAXSIZE ))
28	// F_SELFCONVERT? <=> to_json/toJson
29	// F_BLESSED? <=> { $__class__$ => }
30		45
31	#define F_PRETTY F_INDENT | F_SPACE_BEFORE | F_SPACE_AFTER	46	#define F_PRETTY F_INDENT | F_SPACE_BEFORE | F_SPACE_AFTER
32	#define F_DEFAULT (9UL << S_MAXDEPTH)	47	#define F_DEFAULT (9UL << S_MAXDEPTH)
33		48
34	#define INIT_SIZE 32 // initial scalar size to be allocated	49	#define INIT_SIZE 32 // initial scalar size to be allocated
35	#define INDENT_STEP 3 // spaces per indentation level	50	#define INDENT_STEP 3 // spaces per indentation level
36		51
37	#define SHORT_STRING_LEN 512 // special-case strings of up to this size	52	#define SHORT_STRING_LEN 16384 // special-case strings of up to this size
38		53
39	#define SB do {	54	#define SB do {
40	#define SE } while (0)	55	#define SE } while (0)
41		56
42	#if __GNUC__ >= 3	57	#if __GNUC__ >= 3
43	# define expect(expr,value) __builtin_expect ((expr),(value))	58	# define expect(expr,value) __builtin_expect ((expr), (value))
44	# define inline inline	59	# define INLINE static inline
45	#else	60	#else
46	# define expect(expr,value) (expr)	61	# define expect(expr,value) (expr)
47	# define inline static	62	# define INLINE static
48	#endif	63	#endif
49		64
50	#define expect_false(expr) expect ((expr) != 0, 0)	65	#define expect_false(expr) expect ((expr) != 0, 0)
51	#define expect_true(expr) expect ((expr) != 0, 1)	66	#define expect_true(expr) expect ((expr) != 0, 1)
52		67
		68	#define IN_RANGE_INC(type,val,beg,end) \
		69	((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \
		70	<= (unsigned type)((unsigned type)(end) - (unsigned type)(beg)))
		71
		72	#ifdef USE_ITHREADS
		73	# define JSON_SLOW 1
		74	# define JSON_STASH (json_stash ? json_stash : gv_stashpv ("JSON::XS", 1))
		75	#else
		76	# define JSON_SLOW 0
		77	# define JSON_STASH json_stash
		78	#endif
		79
53	static HV *json_stash; // JSON::XS::	80	static HV *json_stash, *json_boolean_stash; // JSON::XS::
		81	static SV *json_true, *json_false;
		82
		83	typedef struct {
		84	U32 flags;
		85	SV *cb_object;
		86	HV *cb_sk_object;
		87	} JSON;
54		88
55	/////////////////////////////////////////////////////////////////////////////	89	/////////////////////////////////////////////////////////////////////////////
56	// utility functions	90	// utility functions
57		91
58	static UV *	92	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)	93	shrink (SV *sv)
69	{	94	{
70	sv_utf8_downgrade (sv, 1);	95	sv_utf8_downgrade (sv, 1);
71	if (SvLEN (sv) > SvCUR (sv) + 1)	96	if (SvLEN (sv) > SvCUR (sv) + 1)
72	{	97	{
…		…
81	// decode an utf-8 character and return it, or (UV)-1 in	106	// decode an utf-8 character and return it, or (UV)-1 in
82	// case of an error.	107	// case of an error.
83	// we special-case "safe" characters from U+80 .. U+7FF,	108	// we special-case "safe" characters from U+80 .. U+7FF,
84	// but use the very good perl function to parse anything else.	109	// but use the very good perl function to parse anything else.
85	// note that we never call this function for a ascii codepoints	110	// note that we never call this function for a ascii codepoints
86	inline UV	111	INLINE UV
87	decode_utf8 (unsigned char *s, STRLEN len, STRLEN *clen)	112	decode_utf8 (unsigned char *s, STRLEN len, STRLEN *clen)
88	{	113	{
89	if (expect_false (s[0] > 0xdf || s[0] < 0xc2))	114	if (expect_true (len >= 2
90	return utf8n_to_uvuni (s, len, clen, UTF8_CHECK_ONLY);	115	&& IN_RANGE_INC (char, s[0], 0xc2, 0xdf)
91	else if (len > 1 && s[1] >= 0x80 && s[1] <= 0xbf)	116	&& IN_RANGE_INC (char, s[1], 0x80, 0xbf)))
92	{	117	{
93	*clen = 2;	118	*clen = 2;
94	return ((s[0] & 0x1f) << 6) | (s[1] & 0x3f);	119	return ((s[0] & 0x1f) << 6) | (s[1] & 0x3f);
95	}	120	}
96	else	121	else
97	{	122	return utf8n_to_uvuni (s, len, clen, UTF8_CHECK_ONLY);
98	*clen = (STRLEN)-1;	123	}
99	return (UV)-1;	124
100	}	125	// likewise for encoding, also never called for ascii codepoints
		126	// this function takes advantage of this fact, although current gccs
		127	// seem to optimise the check for >= 0x80 away anyways
		128	INLINE unsigned char *
		129	encode_utf8 (unsigned char *s, UV ch)
		130	{
		131	if (expect_false (ch < 0x000080))
		132	*s++ = ch;
		133	else if (expect_true (ch < 0x000800))
		134	*s++ = 0xc0 | ( ch >> 6),
		135	*s++ = 0x80 | ( ch & 0x3f);
		136	else if ( ch < 0x010000)
		137	*s++ = 0xe0 | ( ch >> 12),
		138	*s++ = 0x80 | ((ch >> 6) & 0x3f),
		139	*s++ = 0x80 | ( ch & 0x3f);
		140	else if ( ch < 0x110000)
		141	*s++ = 0xf0 | ( ch >> 18),
		142	*s++ = 0x80 | ((ch >> 12) & 0x3f),
		143	*s++ = 0x80 | ((ch >> 6) & 0x3f),
		144	*s++ = 0x80 | ( ch & 0x3f);
		145
		146	return s;
101	}	147	}
102		148
103	/////////////////////////////////////////////////////////////////////////////	149	/////////////////////////////////////////////////////////////////////////////
104	// encoder	150	// encoder
105		151
…		…
107	typedef struct	153	typedef struct
108	{	154	{
109	char *cur; // SvPVX (sv) + current output position	155	char *cur; // SvPVX (sv) + current output position
110	char *end; // SvEND (sv)	156	char *end; // SvEND (sv)
111	SV *sv; // result scalar	157	SV *sv; // result scalar
112	U32 flags; // F_*	158	JSON json;
113	U32 indent; // indentation level	159	U32 indent; // indentation level
114	U32 maxdepth; // max. indentation/recursion level	160	U32 maxdepth; // max. indentation/recursion level
		161	UV limit; // escape character values >= this value when encoding
115	} enc_t;	162	} enc_t;
116		163
117	inline void	164	INLINE void
118	need (enc_t *enc, STRLEN len)	165	need (enc_t *enc, STRLEN len)
119	{	166	{
120	if (expect_false (enc->cur + len >= enc->end))	167	if (expect_false (enc->cur + len >= enc->end))
121	{	168	{
122	STRLEN cur = enc->cur - SvPVX (enc->sv);	169	STRLEN cur = enc->cur - SvPVX (enc->sv);
…		…
124	enc->cur = SvPVX (enc->sv) + cur;	171	enc->cur = SvPVX (enc->sv) + cur;
125	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;	172	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;
126	}	173	}
127	}	174	}
128		175
129	inline void	176	INLINE void
130	encode_ch (enc_t *enc, char ch)	177	encode_ch (enc_t *enc, char ch)
131	{	178	{
132	need (enc, 1);	179	need (enc, 1);
133	*enc->cur++ = ch;	180	*enc->cur++ = ch;
134	}	181	}
…		…
178	STRLEN clen;	225	STRLEN clen;
179	UV uch;	226	UV uch;
180		227
181	if (is_utf8)	228	if (is_utf8)
182	{	229	{
183	//uch = utf8n_to_uvuni (str, end - str, &clen, UTF8_CHECK_ONLY);
184	uch = decode_utf8 (str, end - str, &clen);	230	uch = decode_utf8 (str, end - str, &clen);
185	if (clen == (STRLEN)-1)	231	if (clen == (STRLEN)-1)
186	croak ("malformed or illegal unicode character in string [%.11s], cannot convert to JSON", str);	232	croak ("malformed or illegal unicode character in string [%.11s], cannot convert to JSON", str);
187	}	233	}
188	else	234	else
189	{	235	{
190	uch = ch;	236	uch = ch;
191	clen = 1;	237	clen = 1;
192	}	238	}
193		239
194	if (uch > 0x10FFFFUL)	240	if (uch < 0x80/*0x20*/ || uch >= enc->limit)
195	croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);
196
197	if (uch < 0x80 || enc->flags & F_ASCII || (enc->flags & F_LATIN1 && uch > 0xFF))
198	{	241	{
199	if (uch > 0xFFFFUL)	242	if (uch >= 0x10000UL)
200	{	243	{
		244	if (uch >= 0x110000UL)
		245	croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);
		246
201	need (enc, len += 11);	247	need (enc, len += 11);
202	sprintf (enc->cur, "\\u%04x\\u%04x",	248	sprintf (enc->cur, "\\u%04x\\u%04x",
203	(int)((uch - 0x10000) / 0x400 + 0xD800),	249	(int)((uch - 0x10000) / 0x400 + 0xD800),
204	(int)((uch - 0x10000) % 0x400 + 0xDC00));	250	(int)((uch - 0x10000) % 0x400 + 0xDC00));
205	enc->cur += 12;	251	enc->cur += 12;
…		…
216	*enc->cur++ = hexdigit [(uch >> 0) & 15];	262	*enc->cur++ = hexdigit [(uch >> 0) & 15];
217	}	263	}
218		264
219	str += clen;	265	str += clen;
220	}	266	}
221	else if (enc->flags & F_LATIN1)	267	else if (enc->json.flags & F_LATIN1)
222	{	268	{
223	*enc->cur++ = uch;	269	*enc->cur++ = uch;
224	str += clen;	270	str += clen;
225	}	271	}
226	else if (is_utf8)	272	else if (is_utf8)
…		…
233	while (--clen);	279	while (--clen);
234	}	280	}
235	else	281	else
236	{	282	{
237	need (enc, len += UTF8_MAXBYTES - 1); // never more than 11 bytes needed	283	need (enc, len += UTF8_MAXBYTES - 1); // never more than 11 bytes needed
238	enc->cur = uvuni_to_utf8_flags (enc->cur, uch, 0);	284	enc->cur = encode_utf8 (enc->cur, uch);
239	++str;	285	++str;
240	}	286	}
241	}	287	}
242	}	288	}
243	}	289	}
244		290
245	--len;	291	--len;
246	}	292	}
247	}	293	}
248		294
249	inline void	295	INLINE void
250	encode_indent (enc_t *enc)	296	encode_indent (enc_t *enc)
251	{	297	{
252	if (enc->flags & F_INDENT)	298	if (enc->json.flags & F_INDENT)
253	{	299	{
254	int spaces = enc->indent * INDENT_STEP;	300	int spaces = enc->indent * INDENT_STEP;
255		301
256	need (enc, spaces);	302	need (enc, spaces);
257	memset (enc->cur, ' ', spaces);	303	memset (enc->cur, ' ', spaces);
258	enc->cur += spaces;	304	enc->cur += spaces;
259	}	305	}
260	}	306	}
261		307
262	inline void	308	INLINE void
263	encode_space (enc_t *enc)	309	encode_space (enc_t *enc)
264	{	310	{
265	need (enc, 1);	311	need (enc, 1);
266	encode_ch (enc, ' ');	312	encode_ch (enc, ' ');
267	}	313	}
268		314
269	inline void	315	INLINE void
270	encode_nl (enc_t *enc)	316	encode_nl (enc_t *enc)
271	{	317	{
272	if (enc->flags & F_INDENT)	318	if (enc->json.flags & F_INDENT)
273	{	319	{
274	need (enc, 1);	320	need (enc, 1);
275	encode_ch (enc, '\n');	321	encode_ch (enc, '\n');
276	}	322	}
277	}	323	}
278		324
279	inline void	325	INLINE void
280	encode_comma (enc_t *enc)	326	encode_comma (enc_t *enc)
281	{	327	{
282	encode_ch (enc, ',');	328	encode_ch (enc, ',');
283		329
284	if (enc->flags & F_INDENT)	330	if (enc->json.flags & F_INDENT)
285	encode_nl (enc);	331	encode_nl (enc);
286	else if (enc->flags & F_SPACE_AFTER)	332	else if (enc->json.flags & F_SPACE_AFTER)
287	encode_space (enc);	333	encode_space (enc);
288	}	334	}
289		335
290	static void encode_sv (enc_t *enc, SV *sv);	336	static void encode_sv (enc_t *enc, SV *sv);
291		337
…		…
295	int i, len = av_len (av);	341	int i, len = av_len (av);
296		342
297	if (enc->indent >= enc->maxdepth)	343	if (enc->indent >= enc->maxdepth)
298	croak ("data structure too deep (hit recursion limit)");	344	croak ("data structure too deep (hit recursion limit)");
299		345
300	encode_ch (enc, '['); encode_nl (enc);	346	encode_ch (enc, '[');
301	++enc->indent;	347
		348	if (len >= 0)
		349	{
		350	encode_nl (enc); ++enc->indent;
302		351
303	for (i = 0; i <= len; ++i)	352	for (i = 0; i <= len; ++i)
304	{	353	{
		354	SV **svp = av_fetch (av, i, 0);
		355
305	encode_indent (enc);	356	encode_indent (enc);
306	encode_sv (enc, *av_fetch (av, i, 0));
307		357
		358	if (svp)
		359	encode_sv (enc, *svp);
		360	else
		361	encode_str (enc, "null", 4, 0);
		362
308	if (i < len)	363	if (i < len)
309	encode_comma (enc);	364	encode_comma (enc);
310	}	365	}
311		366
		367	encode_nl (enc); --enc->indent; encode_indent (enc);
		368	}
		369
312	encode_nl (enc);	370	encode_ch (enc, ']');
313
314	--enc->indent;
315	encode_indent (enc); encode_ch (enc, ']');
316	}	371	}
317		372
318	static void	373	static void
319	encode_he (enc_t *enc, HE *he)	374	encode_hk (enc_t *enc, HE *he)
320	{	375	{
321	encode_ch (enc, '"');	376	encode_ch (enc, '"');
322		377
323	if (HeKLEN (he) == HEf_SVKEY)	378	if (HeKLEN (he) == HEf_SVKEY)
324	{	379	{
…		…
334	else	389	else
335	encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he));	390	encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he));
336		391
337	encode_ch (enc, '"');	392	encode_ch (enc, '"');
338		393
339	if (enc->flags & F_SPACE_BEFORE) encode_space (enc);	394	if (enc->json.flags & F_SPACE_BEFORE) encode_space (enc);
340	encode_ch (enc, ':');	395	encode_ch (enc, ':');
341	if (enc->flags & F_SPACE_AFTER ) encode_space (enc);	396	if (enc->json.flags & F_SPACE_AFTER ) encode_space (enc);
342	encode_sv (enc, HeVAL (he));
343	}	397	}
344		398
345	// compare hash entries, used when all keys are bytestrings	399	// compare hash entries, used when all keys are bytestrings
346	static int	400	static int
347	he_cmp_fast (const void *a_, const void *b_)	401	he_cmp_fast (const void *a_, const void *b_)
…		…
352	HE *b = *(HE **)b_;	406	HE *b = *(HE **)b_;
353		407
354	STRLEN la = HeKLEN (a);	408	STRLEN la = HeKLEN (a);
355	STRLEN lb = HeKLEN (b);	409	STRLEN lb = HeKLEN (b);
356		410
357	if (!(cmp = memcmp (HeKEY (a), HeKEY (b), la < lb ? la : lb)))	411	if (!(cmp = memcmp (HeKEY (b), HeKEY (a), lb < la ? lb : la)))
358	cmp = la - lb;	412	cmp = lb - la;
359		413
360	return cmp;	414	return cmp;
361	}	415	}
362		416
363	// compare hash entries, used when some keys are sv's or utf-x	417	// compare hash entries, used when some keys are sv's or utf-x
364	static int	418	static int
365	he_cmp_slow (const void *a, const void *b)	419	he_cmp_slow (const void *a, const void *b)
366	{	420	{
367	return sv_cmp (HeSVKEY_force (*(HE **)a), HeSVKEY_force (*(HE **)b));	421	return sv_cmp (HeSVKEY_force (*(HE **)b), HeSVKEY_force (*(HE **)a));
368	}	422	}
369		423
370	static void	424	static void
371	encode_hv (enc_t *enc, HV *hv)	425	encode_hv (enc_t *enc, HV *hv)
372	{	426	{
		427	HE *he;
373	int count, i;	428	int count;
374		429
375	if (enc->indent >= enc->maxdepth)	430	if (enc->indent >= enc->maxdepth)
376	croak ("data structure too deep (hit recursion limit)");	431	croak ("data structure too deep (hit recursion limit)");
377		432
378	encode_ch (enc, '{'); encode_nl (enc); ++enc->indent;	433	encode_ch (enc, '{');
379		434
380	if ((count = hv_iterinit (hv)))
381	{
382	// for canonical output we have to sort by keys first	435	// for canonical output we have to sort by keys first
383	// actually, this is mostly due to the stupid so-called	436	// actually, this is mostly due to the stupid so-called
384	// security workaround added somewhere in 5.8.x.	437	// security workaround added somewhere in 5.8.x.
385	// that randomises hash orderings	438	// that randomises hash orderings
386	if (enc->flags & F_CANONICAL)	439	if (enc->json.flags & F_CANONICAL)
		440	{
		441	int count = hv_iterinit (hv);
		442
		443	if (SvMAGICAL (hv))
387	{	444	{
		445	// need to count by iterating. could improve by dynamically building the vector below
		446	// but I don't care for the speed of this special case.
		447	// note also that we will run into undefined behaviour when the two iterations
		448	// do not result in the same count, something I might care for in some later release.
		449
		450	count = 0;
		451	while (hv_iternext (hv))
		452	++count;
		453
		454	hv_iterinit (hv);
		455	}
		456
		457	if (count)
		458	{
388	int fast = 1;	459	int i, fast = 1;
389	HE *he;
390	#if defined(__BORLANDC__) || defined(_MSC_VER)	460	#if defined(__BORLANDC__) || defined(_MSC_VER)
391	HE **hes = _alloca (count * sizeof (HE));	461	HE **hes = _alloca (count * sizeof (HE));
392	#else	462	#else
393	HE *hes [count]; // if your compiler dies here, you need to enable C99 mode	463	HE *hes [count]; // if your compiler dies here, you need to enable C99 mode
394	#endif	464	#endif
…		…
421		491
422	FREETMPS;	492	FREETMPS;
423	LEAVE;	493	LEAVE;
424	}	494	}
425		495
426	for (i = 0; i < count; ++i)	496	encode_nl (enc); ++enc->indent;
		497
		498	while (count--)
427	{	499	{
428	encode_indent (enc);	500	encode_indent (enc);
		501	he = hes [count];
429	encode_he (enc, hes [i]);	502	encode_hk (enc, he);
		503	encode_sv (enc, expect_false (SvMAGICAL (hv)) ? hv_iterval (hv, he) : HeVAL (he));
430		504
431	if (i < count - 1)	505	if (count)
432	encode_comma (enc);	506	encode_comma (enc);
433	}	507	}
434		508
		509	encode_nl (enc); --enc->indent; encode_indent (enc);
		510	}
		511	}
		512	else
		513	{
		514	if (hv_iterinit (hv) || SvMAGICAL (hv))
		515	if ((he = hv_iternext (hv)))
		516	{
		517	encode_nl (enc); ++enc->indent;
		518
		519	for (;;)
		520	{
435	encode_nl (enc);	521	encode_indent (enc);
		522	encode_hk (enc, he);
		523	encode_sv (enc, expect_false (SvMAGICAL (hv)) ? hv_iterval (hv, he) : HeVAL (he));
		524
		525	if (!(he = hv_iternext (hv)))
		526	break;
		527
		528	encode_comma (enc);
		529	}
		530
		531	encode_nl (enc); --enc->indent; encode_indent (enc);
		532	}
		533	}
		534
		535	encode_ch (enc, '}');
		536	}
		537
		538	// encode objects, arrays and special \0=false and \1=true values.
		539	static void
		540	encode_rv (enc_t *enc, SV *sv)
		541	{
		542	svtype svt;
		543
		544	SvGETMAGIC (sv);
		545	svt = SvTYPE (sv);
		546
		547	if (expect_false (SvOBJECT (sv)))
		548	{
		549	HV *stash = !JSON_SLOW || json_boolean_stash
		550	? json_boolean_stash
		551	: gv_stashpv ("JSON::XS::Boolean", 1);
		552
		553	if (SvSTASH (sv) == stash)
		554	{
		555	if (SvIV (sv))
		556	encode_str (enc, "true", 4, 0);
		557	else
		558	encode_str (enc, "false", 5, 0);
436	}	559	}
437	else	560	else
438	{	561	{
439	HE *he = hv_iternext (hv);	562	#if 0
440		563	if (0 && sv_derived_from (rv, "JSON::Literal"))
441	for (;;)
442	{	564	{
443	encode_indent (enc);	565	// not yet
444	encode_he (enc, he);
445
446	if (!(he = hv_iternext (hv)))
447	break;
448
449	encode_comma (enc);
450	}	566	}
		567	#endif
		568	if (enc->json.flags & F_CONV_BLESSED)
		569	{
		570	// we re-bless the reference to get overload and other niceties right
		571	GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 0);
451		572
		573	if (to_json)
		574	{
		575	dSP;
		576
		577	ENTER; SAVETMPS; PUSHMARK (SP);
		578	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv)));
		579
		580	// calling with G_SCALAR ensures that we always get a 1 return value
		581	PUTBACK;
		582	call_sv ((SV *)GvCV (to_json), G_SCALAR);
		583	SPAGAIN;
		584
		585	// catch this surprisingly common error
		586	if (SvROK (TOPs) && SvRV (TOPs) == sv)
		587	croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
		588
		589	sv = POPs;
		590	PUTBACK;
		591
452	encode_nl (enc);	592	encode_sv (enc, sv);
		593
		594	FREETMPS; LEAVE;
		595	}
		596	else if (enc->json.flags & F_ALLOW_BLESSED)
		597	encode_str (enc, "null", 4, 0);
		598	else
		599	croak ("encountered object '%s', but neither allow_blessed enabled nor TO_JSON method available on it",
		600	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
		601	}
		602	else if (enc->json.flags & F_ALLOW_BLESSED)
		603	encode_str (enc, "null", 4, 0);
		604	else
		605	croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled",
		606	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
453	}	607	}
454	}	608	}
455
456	--enc->indent; encode_indent (enc); encode_ch (enc, '}');
457	}
458
459	// encode objects, arrays and special \0=false and \1=true values.
460	static void
461	encode_rv (enc_t *enc, SV *sv)
462	{
463	svtype svt;
464
465	SvGETMAGIC (sv);
466	svt = SvTYPE (sv);
467
468	if (svt == SVt_PVHV)	609	else if (svt == SVt_PVHV)
469	encode_hv (enc, (HV *)sv);	610	encode_hv (enc, (HV *)sv);
470	else if (svt == SVt_PVAV)	611	else if (svt == SVt_PVAV)
471	encode_av (enc, (AV *)sv);	612	encode_av (enc, (AV *)sv);
472	else if (svt < SVt_PVAV)	613	else if (svt < SVt_PVAV)
473	{	614	{
474	if (SvNIOK (sv) && SvIV (sv) == 0)	615	STRLEN len = 0;
		616	char *pv = svt ? SvPV (sv, len) : 0;
		617
		618	if (len == 1 && *pv == '1')
		619	encode_str (enc, "true", 4, 0);
		620	else if (len == 1 && *pv == '0')
475	encode_str (enc, "false", 5, 0);	621	encode_str (enc, "false", 5, 0);
476	else if (SvNIOK (sv) && SvIV (sv) == 1)
477	encode_str (enc, "true", 4, 0);
478	else	622	else
479	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",	623	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",
480	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	624	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
481	}	625	}
482	else	626	else
…		…
497	encode_str (enc, str, len, SvUTF8 (sv));	641	encode_str (enc, str, len, SvUTF8 (sv));
498	encode_ch (enc, '"');	642	encode_ch (enc, '"');
499	}	643	}
500	else if (SvNOKp (sv))	644	else if (SvNOKp (sv))
501	{	645	{
		646	// trust that perl will do the right thing w.r.t. JSON syntax.
502	need (enc, NV_DIG + 32);	647	need (enc, NV_DIG + 32);
503	Gconvert (SvNVX (sv), NV_DIG, 0, enc->cur);	648	Gconvert (SvNVX (sv), NV_DIG, 0, enc->cur);
504	enc->cur += strlen (enc->cur);	649	enc->cur += strlen (enc->cur);
505	}	650	}
506	else if (SvIOKp (sv))	651	else if (SvIOKp (sv))
507	{	652	{
508	// we assume we can always read an IV as a UV	653	// we assume we can always read an IV as a UV and vice versa
509	if (SvUV (sv) & ~(UV)0x7fff)	654	// we assume two's complement
		655	// we assume no aliasing issues in the union
		656	if (SvIsUV (sv) ? SvUVX (sv) <= 59000
		657	: SvIVX (sv) <= 59000 && SvIVX (sv) >= -59000)
510	{	658	{
511	need (enc, sizeof (UV) * 3);	659	// optimise the "small number case"
512	enc->cur +=	660	// code will likely be branchless and use only a single multiplication
513	SvIsUV(sv)	661	// works for numbers up to 59074
514	? snprintf (enc->cur, sizeof (UV) * 3, "%"UVuf, (UV)SvUVX (sv))	662	I32 i = SvIVX (sv);
515	: snprintf (enc->cur, sizeof (UV) * 3, "%"IVdf, (IV)SvIVX (sv));	663	U32 u;
		664	char digit, nz = 0;
		665
		666	need (enc, 6);
		667
		668	*enc->cur = '-'; enc->cur += i < 0 ? 1 : 0;
		669	u = i < 0 ? -i : i;
		670
		671	// convert to 4.28 fixed-point representation
		672	u = u * ((0xfffffff + 10000) / 10000); // 10**5, 5 fractional digits
		673
		674	// now output digit by digit, each time masking out the integer part
		675	// and multiplying by 5 while moving the decimal point one to the right,
		676	// resulting in a net multiplication by 10.
		677	// we always write the digit to memory but conditionally increment
		678	// the pointer, to enable the use of conditional move instructions.
		679	digit = u >> 28; *enc->cur = digit + '0'; enc->cur += (nz = nz || digit); u = (u & 0xfffffffUL) * 5;
		680	digit = u >> 27; *enc->cur = digit + '0'; enc->cur += (nz = nz || digit); u = (u & 0x7ffffffUL) * 5;
		681	digit = u >> 26; *enc->cur = digit + '0'; enc->cur += (nz = nz || digit); u = (u & 0x3ffffffUL) * 5;
		682	digit = u >> 25; *enc->cur = digit + '0'; enc->cur += (nz = nz || digit); u = (u & 0x1ffffffUL) * 5;
		683	digit = u >> 24; *enc->cur = digit + '0'; enc->cur += 1; // correctly generate '0'
516	}	684	}
517	else	685	else
518	{	686	{
519	// optimise the "small number case"	687	// large integer, use the (rather slow) snprintf way.
520	// code will likely be branchless and use only a single multiplication
521	I32 i = SvIV (sv);
522	U32 u;
523
524	need (enc, 6);	688	need (enc, IVUV_MAXCHARS);
525		689	enc->cur +=
526	*enc->cur = '-'; enc->cur += i < 0 ? 1 : 0;	690	SvIsUV(sv)
527	u = i < 0 ? -i : i;	691	? snprintf (enc->cur, IVUV_MAXCHARS, "%"UVuf, (UV)SvUVX (sv))
528		692	: snprintf (enc->cur, IVUV_MAXCHARS, "%"IVdf, (IV)SvIVX (sv));
529	// convert to 4.28 fixed-point representation
530	u = u * ((0xfffffff + 10000) / 10000); // 10**5, 5 fractional digits
531
532	char digit, nz = 0;
533
534	digit = u >> 28; *enc->cur = digit + '0'; enc->cur += (nz = nz || digit); u = (u & 0xfffffff) * 5;
535	digit = u >> 27; *enc->cur = digit + '0'; enc->cur += (nz = nz || digit); u = (u & 0x7ffffff) * 5;
536	digit = u >> 26; *enc->cur = digit + '0'; enc->cur += (nz = nz || digit); u = (u & 0x3ffffff) * 5;
537	digit = u >> 25; *enc->cur = digit + '0'; enc->cur += (nz = nz || digit); u = (u & 0x1ffffff) * 5;
538	digit = u >> 24; *enc->cur = digit + '0'; enc->cur += 1;
539	}	693	}
540	}	694	}
541	else if (SvROK (sv))	695	else if (SvROK (sv))
542	encode_rv (enc, SvRV (sv));	696	encode_rv (enc, SvRV (sv));
543	else if (!SvOK (sv))	697	else if (!SvOK (sv))
…		…
546	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",	700	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",
547	SvPV_nolen (sv), SvFLAGS (sv));	701	SvPV_nolen (sv), SvFLAGS (sv));
548	}	702	}
549		703
550	static SV *	704	static SV *
551	encode_json (SV *scalar, U32 flags)	705	encode_json (SV *scalar, JSON *json)
552	{	706	{
553	enc_t enc;	707	enc_t enc;
554		708
555	if (!(flags & F_ALLOW_NONREF) && !SvROK (scalar))	709	if (!(json->flags & F_ALLOW_NONREF) && !SvROK (scalar))
556	croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");	710	croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");
557		711
558	enc.flags = flags;	712	enc.json = *json;
559	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	713	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
560	enc.cur = SvPVX (enc.sv);	714	enc.cur = SvPVX (enc.sv);
561	enc.end = SvEND (enc.sv);	715	enc.end = SvEND (enc.sv);
562	enc.indent = 0;	716	enc.indent = 0;
563	enc.maxdepth = DEC_DEPTH (flags);	717	enc.maxdepth = DEC_DEPTH (enc.json.flags);
		718	enc.limit = enc.json.flags & F_ASCII ? 0x000080UL
		719	: enc.json.flags & F_LATIN1 ? 0x000100UL
		720	: 0x110000UL;
564		721
565	SvPOK_only (enc.sv);	722	SvPOK_only (enc.sv);
566	encode_sv (&enc, scalar);	723	encode_sv (&enc, scalar);
567		724
568	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));	725	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));
569	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings	726	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings
570		727
571	if (!(flags & (F_ASCII | F_LATIN1 | F_UTF8)))	728	if (!(enc.json.flags & (F_ASCII | F_LATIN1 | F_UTF8)))
572	SvUTF8_on (enc.sv);	729	SvUTF8_on (enc.sv);
573		730
574	if (enc.flags & F_SHRINK)	731	if (enc.json.flags & F_SHRINK)
575	shrink (enc.sv);	732	shrink (enc.sv);
576		733
577	return enc.sv;	734	return enc.sv;
578	}	735	}
579		736
…		…
584	typedef struct	741	typedef struct
585	{	742	{
586	char *cur; // current parser pointer	743	char *cur; // current parser pointer
587	char *end; // end of input string	744	char *end; // end of input string
588	const char *err; // parse error, if != 0	745	const char *err; // parse error, if != 0
589	U32 flags; // F_*	746	JSON json;
590	U32 depth; // recursion depth	747	U32 depth; // recursion depth
591	U32 maxdepth; // recursion depth limit	748	U32 maxdepth; // recursion depth limit
592	} dec_t;	749	} dec_t;
593		750
594	inline void	751	INLINE void
		752	decode_comment (dec_t *dec)
		753	{
		754	// only '#'-style comments allowed a.t.m.
		755
		756	while (*dec->cur && *dec->cur != 0x0a && *dec->cur != 0x0d)
		757	++dec->cur;
		758	}
		759
		760	INLINE void
595	decode_ws (dec_t *dec)	761	decode_ws (dec_t *dec)
596	{	762	{
597	for (;;)	763	for (;;)
598	{	764	{
599	char ch = *dec->cur;	765	char ch = *dec->cur;
600		766
601	if (ch > 0x20	767	if (ch > 0x20)
		768	{
		769	if (expect_false (ch == '#'))
		770	{
		771	if (dec->json.flags & F_RELAXED)
		772	decode_comment (dec);
		773	else
		774	break;
		775	}
		776	else
		777	break;
		778	}
602	|| (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09))	779	else if (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09)
603	break;	780	break; // parse error, but let higher level handle it, gives better error messages
604		781
605	++dec->cur;	782	++dec->cur;
606	}	783	}
607	}	784	}
608		785
…		…
625	decode_4hex (dec_t *dec)	802	decode_4hex (dec_t *dec)
626	{	803	{
627	signed char d1, d2, d3, d4;	804	signed char d1, d2, d3, d4;
628	unsigned char *cur = (unsigned char *)dec->cur;	805	unsigned char *cur = (unsigned char *)dec->cur;
629		806
630	d1 = decode_hexdigit [cur [0]]; if (expect_false (d1 < 0)) ERR ("four hexadecimal digits expected");	807	d1 = decode_hexdigit [cur [0]]; if (expect_false (d1 < 0)) ERR ("exactly four hexadecimal digits expected");
631	d2 = decode_hexdigit [cur [1]]; if (expect_false (d2 < 0)) ERR ("four hexadecimal digits expected");	808	d2 = decode_hexdigit [cur [1]]; if (expect_false (d2 < 0)) ERR ("exactly four hexadecimal digits expected");
632	d3 = decode_hexdigit [cur [2]]; if (expect_false (d3 < 0)) ERR ("four hexadecimal digits expected");	809	d3 = decode_hexdigit [cur [2]]; if (expect_false (d3 < 0)) ERR ("exactly four hexadecimal digits expected");
633	d4 = decode_hexdigit [cur [3]]; if (expect_false (d4 < 0)) ERR ("four hexadecimal digits expected");	810	d4 = decode_hexdigit [cur [3]]; if (expect_false (d4 < 0)) ERR ("exactly four hexadecimal digits expected");
634		811
635	dec->cur += 4;	812	dec->cur += 4;
636		813
637	return ((UV)d1) << 12	814	return ((UV)d1) << 12
638	| ((UV)d2) << 8	815	| ((UV)d2) << 8
…		…
646	static SV *	823	static SV *
647	decode_str (dec_t *dec)	824	decode_str (dec_t *dec)
648	{	825	{
649	SV *sv = 0;	826	SV *sv = 0;
650	int utf8 = 0;	827	int utf8 = 0;
		828	char *dec_cur = dec->cur;
651		829
652	do	830	do
653	{	831	{
654	char buf [SHORT_STRING_LEN + UTF8_MAXBYTES];	832	char buf [SHORT_STRING_LEN + UTF8_MAXBYTES];
655	char *cur = buf;	833	char *cur = buf;
656		834
657	do	835	do
658	{	836	{
659	unsigned char ch = *(unsigned char *)dec->cur++;	837	unsigned char ch = *(unsigned char *)dec_cur++;
660		838
661	if (expect_false (ch == '"'))	839	if (expect_false (ch == '"'))
662	{	840	{
663	--dec->cur;	841	--dec_cur;
664	break;	842	break;
665	}	843	}
666	else if (expect_false (ch == '\\'))	844	else if (expect_false (ch == '\\'))
667	{	845	{
668	switch (*dec->cur)	846	switch (*dec_cur)
669	{	847	{
670	case '\\':	848	case '\\':
671	case '/':	849	case '/':
672	case '"': *cur++ = *dec->cur++; break;	850	case '"': *cur++ = *dec_cur++; break;
673		851
674	case 'b': ++dec->cur; *cur++ = '\010'; break;	852	case 'b': ++dec_cur; *cur++ = '\010'; break;
675	case 't': ++dec->cur; *cur++ = '\011'; break;	853	case 't': ++dec_cur; *cur++ = '\011'; break;
676	case 'n': ++dec->cur; *cur++ = '\012'; break;	854	case 'n': ++dec_cur; *cur++ = '\012'; break;
677	case 'f': ++dec->cur; *cur++ = '\014'; break;	855	case 'f': ++dec_cur; *cur++ = '\014'; break;
678	case 'r': ++dec->cur; *cur++ = '\015'; break;	856	case 'r': ++dec_cur; *cur++ = '\015'; break;
679		857
680	case 'u':	858	case 'u':
681	{	859	{
682	UV lo, hi;	860	UV lo, hi;
683	++dec->cur;	861	++dec_cur;
684		862
		863	dec->cur = dec_cur;
685	hi = decode_4hex (dec);	864	hi = decode_4hex (dec);
		865	dec_cur = dec->cur;
686	if (hi == (UV)-1)	866	if (hi == (UV)-1)
687	goto fail;	867	goto fail;
688		868
689	// possibly a surrogate pair	869	// possibly a surrogate pair
690	if (hi >= 0xd800)	870	if (hi >= 0xd800)
691	if (hi < 0xdc00)	871	if (hi < 0xdc00)
692	{	872	{
693	if (dec->cur [0] != '\\' || dec->cur [1] != 'u')	873	if (dec_cur [0] != '\\' || dec_cur [1] != 'u')
694	ERR ("missing low surrogate character in surrogate pair");	874	ERR ("missing low surrogate character in surrogate pair");
695		875
696	dec->cur += 2;	876	dec_cur += 2;
697		877
		878	dec->cur = dec_cur;
698	lo = decode_4hex (dec);	879	lo = decode_4hex (dec);
		880	dec_cur = dec->cur;
699	if (lo == (UV)-1)	881	if (lo == (UV)-1)
700	goto fail;	882	goto fail;
701		883
702	if (lo < 0xdc00 || lo >= 0xe000)	884	if (lo < 0xdc00 || lo >= 0xe000)
703	ERR ("surrogate pair expected");	885	ERR ("surrogate pair expected");
…		…
709		891
710	if (hi >= 0x80)	892	if (hi >= 0x80)
711	{	893	{
712	utf8 = 1;	894	utf8 = 1;
713		895
714	cur = (char *)uvuni_to_utf8_flags (cur, hi, 0);	896	cur = encode_utf8 (cur, hi);
715	}	897	}
716	else	898	else
717	*cur++ = hi;	899	*cur++ = hi;
718	}	900	}
719	break;	901	break;
720		902
721	default:	903	default:
722	--dec->cur;	904	--dec_cur;
723	ERR ("illegal backslash escape sequence in string");	905	ERR ("illegal backslash escape sequence in string");
724	}	906	}
725	}	907	}
726	else if (expect_true (ch >= 0x20 && ch <= 0x7f))	908	else if (expect_true (ch >= 0x20 && ch < 0x80))
727	*cur++ = ch;	909	*cur++ = ch;
728	else if (ch >= 0x80)	910	else if (ch >= 0x80)
729	{	911	{
730	STRLEN clen;	912	STRLEN clen;
731	UV uch;	913	UV uch;
732		914
733	--dec->cur;	915	--dec_cur;
734		916
735	uch = decode_utf8 (dec->cur, dec->end - dec->cur, &clen);	917	uch = decode_utf8 (dec_cur, dec->end - dec_cur, &clen);
736	if (clen == (STRLEN)-1)	918	if (clen == (STRLEN)-1)
737	ERR ("malformed UTF-8 character in JSON string");	919	ERR ("malformed UTF-8 character in JSON string");
738		920
739	do	921	do
740	*cur++ = *dec->cur++;	922	*cur++ = *dec_cur++;
741	while (--clen);	923	while (--clen);
742		924
743	utf8 = 1;	925	utf8 = 1;
744	}	926	}
745	else	927	else
746	{	928	{
747	--dec->cur;	929	--dec_cur;
748		930
749	if (!ch)	931	if (!ch)
750	ERR ("unexpected end of string while parsing JSON string");	932	ERR ("unexpected end of string while parsing JSON string");
751	else	933	else
752	ERR ("invalid character encountered while parsing JSON string");	934	ERR ("invalid character encountered while parsing JSON string");
…		…
765	}	947	}
766	else	948	else
767	sv = newSVpvn (buf, len);	949	sv = newSVpvn (buf, len);
768	}	950	}
769	}	951	}
770	while (*dec->cur != '"');	952	while (*dec_cur != '"');
771		953
772	++dec->cur;	954	++dec_cur;
773		955
774	if (sv)	956	if (sv)
775	{	957	{
776	SvPOK_only (sv);	958	SvPOK_only (sv);
777	*SvEND (sv) = 0;	959	*SvEND (sv) = 0;
…		…
780	SvUTF8_on (sv);	962	SvUTF8_on (sv);
781	}	963	}
782	else	964	else
783	sv = newSVpvn ("", 0);	965	sv = newSVpvn ("", 0);
784		966
		967	dec->cur = dec_cur;
785	return sv;	968	return sv;
786		969
787	fail:	970	fail:
		971	dec->cur = dec_cur;
788	return 0;	972	return 0;
789	}	973	}
790		974
791	static SV *	975	static SV *
792	decode_num (dec_t *dec)	976	decode_num (dec_t *dec)
…		…
850	is_nv = 1;	1034	is_nv = 1;
851	}	1035	}
852		1036
853	if (!is_nv)	1037	if (!is_nv)
854	{	1038	{
		1039	int len = dec->cur - start;
		1040
855	// special case the rather common 1..4-digit-int case, assumes 32 bit ints or so	1041	// special case the rather common 1..5-digit-int case
856	if (*start == '-')	1042	if (*start == '-')
857	switch (dec->cur - start)	1043	switch (len)
858	{	1044	{
859	case 2: return newSViv (-( start [1] - '0' ));	1045	case 2: return newSViv (-( start [1] - '0' * 1));
860	case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11));	1046	case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11));
861	case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111));	1047	case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111));
862	case 5: return newSViv (-(start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111));	1048	case 5: return newSViv (-( start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111));
		1049	case 6: return newSViv (-(start [1] * 10000 + start [2] * 1000 + start [3] * 100 + start [4] * 10 + start [5] - '0' * 11111));
863	}	1050	}
864	else	1051	else
865	switch (dec->cur - start)	1052	switch (len)
866	{	1053	{
867	case 1: return newSViv ( start [0] - '0' );	1054	case 1: return newSViv ( start [0] - '0' * 1);
868	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);	1055	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);
869	case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111);	1056	case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111);
870	case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111);	1057	case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111);
		1058	case 5: return newSViv ( start [0] * 10000 + start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 11111);
871	}	1059	}
872		1060
873	{	1061	{
874	UV uv;	1062	UV uv;
875	int numtype = grok_number (start, dec->cur - start, &uv);	1063	int numtype = grok_number (start, len, &uv);
876	if (numtype & IS_NUMBER_IN_UV)	1064	if (numtype & IS_NUMBER_IN_UV)
877	if (numtype & IS_NUMBER_NEG)	1065	if (numtype & IS_NUMBER_NEG)
878	{	1066	{
879	if (uv < (UV)IV_MIN)	1067	if (uv < (UV)IV_MIN)
880	return newSViv (-(IV)uv);	1068	return newSViv (-(IV)uv);
881	}	1069	}
882	else	1070	else
883	return newSVuv (uv);	1071	return newSVuv (uv);
884	}	1072	}
885	}
886		1073
		1074	len -= *start == '-' ? 1 : 0;
		1075
		1076	// does not fit into IV or UV, try NV
		1077	if ((sizeof (NV) == sizeof (double) && DBL_DIG >= len)
		1078	#if defined (LDBL_DIG)
		1079	|| (sizeof (NV) == sizeof (long double) && LDBL_DIG >= len)
		1080	#endif
		1081	)
		1082	// fits into NV without loss of precision
		1083	return newSVnv (Atof (start));
		1084
		1085	// everything else fails, convert it to a string
		1086	return newSVpvn (start, dec->cur - start);
		1087	}
		1088
		1089	// loss of precision here
887	return newSVnv (Atof (start));	1090	return newSVnv (Atof (start));
888		1091
889	fail:	1092	fail:
890	return 0;	1093	return 0;
891	}	1094	}
…		…
921		1124
922	if (*dec->cur != ',')	1125	if (*dec->cur != ',')
923	ERR (", or ] expected while parsing array");	1126	ERR (", or ] expected while parsing array");
924		1127
925	++dec->cur;	1128	++dec->cur;
		1129
		1130	decode_ws (dec);
		1131
		1132	if (*dec->cur == ']' && dec->json.flags & F_RELAXED)
		1133	{
		1134	++dec->cur;
		1135	break;
		1136	}
926	}	1137	}
927		1138
928	DEC_DEC_DEPTH;	1139	DEC_DEC_DEPTH;
929	return newRV_noinc ((SV *)av);	1140	return newRV_noinc ((SV *)av);
930		1141
…		…
935	}	1146	}
936		1147
937	static SV *	1148	static SV *
938	decode_hv (dec_t *dec)	1149	decode_hv (dec_t *dec)
939	{	1150	{
		1151	SV *sv;
940	HV *hv = newHV ();	1152	HV *hv = newHV ();
941		1153
942	DEC_INC_DEPTH;	1154	DEC_INC_DEPTH;
943	decode_ws (dec);	1155	decode_ws (dec);
944		1156
945	if (*dec->cur == '}')	1157	if (*dec->cur == '}')
946	++dec->cur;	1158	++dec->cur;
947	else	1159	else
948	for (;;)	1160	for (;;)
949	{	1161	{
		1162	EXPECT_CH ('"');
		1163
		1164	// heuristic: assume that
		1165	// a) decode_str + hv_store_ent are abysmally slow.
		1166	// b) most hash keys are short, simple ascii text.
		1167	// => try to "fast-match" such strings to avoid
		1168	// the overhead of decode_str + hv_store_ent.
		1169	{
950	SV *key, *value;	1170	SV *value;
		1171	char *p = dec->cur;
		1172	char *e = p + 24; // only try up to 24 bytes
951		1173
952	decode_ws (dec); EXPECT_CH ('"');	1174	for (;;)
953
954	key = decode_str (dec);
955	if (!key)
956	goto fail;
957
958	decode_ws (dec); EXPECT_CH (':');
959
960	value = decode_sv (dec);
961	if (!value)
962	{	1175	{
		1176	// the >= 0x80 is true on most architectures
		1177	if (p == e || *p < 0x20 || *p >= 0x80 || *p == '\\')
		1178	{
		1179	// slow path, back up and use decode_str
		1180	SV *key = decode_str (dec);
		1181	if (!key)
		1182	goto fail;
		1183
		1184	decode_ws (dec); EXPECT_CH (':');
		1185
		1186	decode_ws (dec);
		1187	value = decode_sv (dec);
		1188	if (!value)
		1189	{
		1190	SvREFCNT_dec (key);
		1191	goto fail;
		1192	}
		1193
		1194	hv_store_ent (hv, key, value, 0);
963	SvREFCNT_dec (key);	1195	SvREFCNT_dec (key);
		1196
		1197	break;
		1198	}
		1199	else if (*p == '"')
		1200	{
		1201	// fast path, got a simple key
		1202	char *key = dec->cur;
		1203	int len = p - key;
		1204	dec->cur = p + 1;
		1205
		1206	decode_ws (dec); EXPECT_CH (':');
		1207
		1208	decode_ws (dec);
		1209	value = decode_sv (dec);
		1210	if (!value)
964	goto fail;	1211	goto fail;
		1212
		1213	hv_store (hv, key, len, value, 0);
		1214
		1215	break;
		1216	}
		1217
		1218	++p;
965	}	1219	}
966		1220	}
967	hv_store_ent (hv, key, value, 0);
968	SvREFCNT_dec (key);
969		1221
970	decode_ws (dec);	1222	decode_ws (dec);
971		1223
972	if (*dec->cur == '}')	1224	if (*dec->cur == '}')
973	{	1225	{
…		…
977		1229
978	if (*dec->cur != ',')	1230	if (*dec->cur != ',')
979	ERR (", or } expected while parsing object/hash");	1231	ERR (", or } expected while parsing object/hash");
980		1232
981	++dec->cur;	1233	++dec->cur;
		1234
		1235	decode_ws (dec);
		1236
		1237	if (*dec->cur == '}' && dec->json.flags & F_RELAXED)
		1238	{
		1239	++dec->cur;
		1240	break;
		1241	}
982	}	1242	}
983		1243
984	DEC_DEC_DEPTH;	1244	DEC_DEC_DEPTH;
985	return newRV_noinc ((SV *)hv);	1245	sv = newRV_noinc ((SV *)hv);
		1246
		1247	// check filter callbacks
		1248	if (dec->json.flags & F_HOOK)
		1249	{
		1250	if (dec->json.cb_sk_object && HvKEYS (hv) == 1)
		1251	{
		1252	HE *cb, *he;
		1253
		1254	hv_iterinit (hv);
		1255	he = hv_iternext (hv);
		1256	hv_iterinit (hv);
		1257
		1258	// the next line creates a mortal sv each time its called.
		1259	// might want to optimise this for common cases.
		1260	cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0);
		1261
		1262	if (cb)
		1263	{
		1264	dSP;
		1265	int count;
		1266
		1267	ENTER; SAVETMPS; PUSHMARK (SP);
		1268	XPUSHs (HeVAL (he));
		1269
		1270	PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN;
		1271
		1272	if (count == 1)
		1273	{
		1274	sv = newSVsv (POPs);
		1275	FREETMPS; LEAVE;
		1276	return sv;
		1277	}
		1278
		1279	FREETMPS; LEAVE;
		1280	}
		1281	}
		1282
		1283	if (dec->json.cb_object)
		1284	{
		1285	dSP;
		1286	int count;
		1287
		1288	ENTER; SAVETMPS; PUSHMARK (SP);
		1289	XPUSHs (sv_2mortal (sv));
		1290
		1291	PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN;
		1292
		1293	if (count == 1)
		1294	{
		1295	sv = newSVsv (POPs);
		1296	FREETMPS; LEAVE;
		1297	return sv;
		1298	}
		1299
		1300	SvREFCNT_inc (sv);
		1301	FREETMPS; LEAVE;
		1302	}
		1303	}
		1304
		1305	return sv;
986		1306
987	fail:	1307	fail:
988	SvREFCNT_dec (hv);	1308	SvREFCNT_dec (hv);
989	DEC_DEC_DEPTH;	1309	DEC_DEC_DEPTH;
990	return 0;	1310	return 0;
991	}	1311	}
992		1312
993	static SV *	1313	static SV *
994	decode_sv (dec_t *dec)	1314	decode_sv (dec_t *dec)
995	{	1315	{
996	decode_ws (dec);	1316	// the beauty of JSON: you need exactly one character lookahead
		1317	// to parse everything.
997	switch (*dec->cur)	1318	switch (*dec->cur)
998	{	1319	{
999	case '"': ++dec->cur; return decode_str (dec);	1320	case '"': ++dec->cur; return decode_str (dec);
1000	case '[': ++dec->cur; return decode_av (dec);	1321	case '[': ++dec->cur; return decode_av (dec);
1001	case '{': ++dec->cur; return decode_hv (dec);	1322	case '{': ++dec->cur; return decode_hv (dec);
1002		1323
1003	case '-':	1324	case '-':
1004	case '0': case '1': case '2': case '3': case '4':	1325	case '0': case '1': case '2': case '3': case '4':
1005	case '5': case '6': case '7': case '8': case '9':	1326	case '5': case '6': case '7': case '8': case '9':
1006	return decode_num (dec);	1327	return decode_num (dec);
1007		1328
1008	case 't':	1329	case 't':
1009	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))	1330	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))
1010	{	1331	{
1011	dec->cur += 4;	1332	dec->cur += 4;
1012	return newSViv (1);	1333	#if JSON_SLOW
		1334	json_true = get_sv ("JSON::XS::true", 1); SvREADONLY_on (json_true);
		1335	#endif
		1336	return SvREFCNT_inc (json_true);
1013	}	1337	}
1014	else	1338	else
1015	ERR ("'true' expected");	1339	ERR ("'true' expected");
1016		1340
1017	break;	1341	break;
1018		1342
1019	case 'f':	1343	case 'f':
1020	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))	1344	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))
1021	{	1345	{
1022	dec->cur += 5;	1346	dec->cur += 5;
1023	return newSViv (0);	1347	#if JSON_SLOW
		1348	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);
		1349	#endif
		1350	return SvREFCNT_inc (json_false);
1024	}	1351	}
1025	else	1352	else
1026	ERR ("'false' expected");	1353	ERR ("'false' expected");
1027		1354
1028	break;	1355	break;
…		…
1046	fail:	1373	fail:
1047	return 0;	1374	return 0;
1048	}	1375	}
1049		1376
1050	static SV *	1377	static SV *
1051	decode_json (SV *string, U32 flags, UV *offset_return)	1378	decode_json (SV *string, JSON *json, UV *offset_return)
1052	{	1379	{
1053	dec_t dec;	1380	dec_t dec;
1054	UV offset;	1381	UV offset;
1055	SV *sv;	1382	SV *sv;
1056		1383
1057	SvGETMAGIC (string);	1384	SvGETMAGIC (string);
1058	SvUPGRADE (string, SVt_PV);	1385	SvUPGRADE (string, SVt_PV);
1059		1386
		1387	if (json->flags & F_MAXSIZE && SvCUR (string) > DEC_SIZE (json->flags))
		1388	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",
		1389	(unsigned long)SvCUR (string), (unsigned long)DEC_SIZE (json->flags));
		1390
1060	if (flags & F_UTF8)	1391	if (json->flags & F_UTF8)
1061	sv_utf8_downgrade (string, 0);	1392	sv_utf8_downgrade (string, 0);
1062	else	1393	else
1063	sv_utf8_upgrade (string);	1394	sv_utf8_upgrade (string);
1064		1395
1065	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP	1396	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP
1066		1397
1067	dec.flags = flags;	1398	dec.json = *json;
1068	dec.cur = SvPVX (string);	1399	dec.cur = SvPVX (string);
1069	dec.end = SvEND (string);	1400	dec.end = SvEND (string);
1070	dec.err = 0;	1401	dec.err = 0;
1071	dec.depth = 0;	1402	dec.depth = 0;
1072	dec.maxdepth = DEC_DEPTH (dec.flags);	1403	dec.maxdepth = DEC_DEPTH (dec.json.flags);
		1404
		1405	if (dec.json.cb_object || dec.json.cb_sk_object)
		1406	dec.json.flags |= F_HOOK;
1073		1407
1074	*dec.end = 0; // this should basically be a nop, too, but make sure it's there	1408	*dec.end = 0; // this should basically be a nop, too, but make sure it's there
		1409
		1410	decode_ws (&dec);
1075	sv = decode_sv (&dec);	1411	sv = decode_sv (&dec);
1076		1412
1077	if (!(offset_return || !sv))	1413	if (!(offset_return || !sv))
1078	{	1414	{
1079	// check for trailing garbage	1415	// check for trailing garbage
…		…
1087	}	1423	}
1088	}	1424	}
1089		1425
1090	if (offset_return || !sv)	1426	if (offset_return || !sv)
1091	{	1427	{
1092	offset = dec.flags & F_UTF8	1428	offset = dec.json.flags & F_UTF8
1093	? dec.cur - SvPVX (string)	1429	? dec.cur - SvPVX (string)
1094	: utf8_distance (dec.cur, SvPVX (string));	1430	: utf8_distance (dec.cur, SvPVX (string));
1095		1431
1096	if (offset_return)	1432	if (offset_return)
1097	*offset_return = offset;	1433	*offset_return = offset;
…		…
1116	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");	1452	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");
1117	}	1453	}
1118		1454
1119	sv = sv_2mortal (sv);	1455	sv = sv_2mortal (sv);
1120		1456
1121	if (!(dec.flags & F_ALLOW_NONREF) && !SvROK (sv))	1457	if (!(dec.json.flags & F_ALLOW_NONREF) && !SvROK (sv))
1122	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");	1458	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");
1123		1459
1124	return sv;	1460	return sv;
1125	}	1461	}
1126		1462
…		…
1130	MODULE = JSON::XS PACKAGE = JSON::XS	1466	MODULE = JSON::XS PACKAGE = JSON::XS
1131		1467
1132	BOOT:	1468	BOOT:
1133	{	1469	{
1134	int i;	1470	int i;
1135
1136	memset (decode_hexdigit, 0xff, 256);
1137		1471
1138	for (i = 0; i < 256; ++i)	1472	for (i = 0; i < 256; ++i)
1139	decode_hexdigit [i] =	1473	decode_hexdigit [i] =
1140	i >= '0' && i <= '9' ? i - '0'	1474	i >= '0' && i <= '9' ? i - '0'
1141	: i >= 'a' && i <= 'f' ? i - 'a' + 10	1475	: i >= 'a' && i <= 'f' ? i - 'a' + 10
1142	: i >= 'A' && i <= 'F' ? i - 'A' + 10	1476	: i >= 'A' && i <= 'F' ? i - 'A' + 10
1143	: -1;	1477	: -1;
1144		1478
1145	json_stash = gv_stashpv ("JSON::XS", 1);	1479	json_stash = gv_stashpv ("JSON::XS" , 1);
		1480	json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1);
		1481
		1482	json_true = get_sv ("JSON::XS::true" , 1); SvREADONLY_on (json_true );
		1483	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);
1146	}	1484	}
1147		1485
1148	PROTOTYPES: DISABLE	1486	PROTOTYPES: DISABLE
1149		1487
1150	SV *new (char *dummy)	1488	void CLONE (...)
1151	CODE:	1489	CODE:
1152	RETVAL = sv_bless (newRV_noinc (newSVuv (F_DEFAULT)), json_stash);	1490	json_stash = 0;
		1491	json_boolean_stash = 0;
		1492
		1493	void new (char *klass)
		1494	PPCODE:
		1495	{
		1496	SV *pv = NEWSV (0, sizeof (JSON));
		1497	SvPOK_only (pv);
		1498	Zero (SvPVX (pv), 1, JSON);
		1499	((JSON *)SvPVX (pv))->flags = F_DEFAULT;
		1500	XPUSHs (sv_2mortal (sv_bless (
		1501	newRV_noinc (pv),
		1502	strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1)
		1503	)));
		1504	}
		1505
		1506	void ascii (JSON *self, int enable = 1)
		1507	ALIAS:
		1508	ascii = F_ASCII
		1509	latin1 = F_LATIN1
		1510	utf8 = F_UTF8
		1511	indent = F_INDENT
		1512	canonical = F_CANONICAL
		1513	space_before = F_SPACE_BEFORE
		1514	space_after = F_SPACE_AFTER
		1515	pretty = F_PRETTY
		1516	allow_nonref = F_ALLOW_NONREF
		1517	shrink = F_SHRINK
		1518	allow_blessed = F_ALLOW_BLESSED
		1519	convert_blessed = F_CONV_BLESSED
		1520	relaxed = F_RELAXED
		1521	PPCODE:
		1522	{
		1523	if (enable)
		1524	self->flags |= ix;
		1525	else
		1526	self->flags &= ~ix;
		1527
		1528	XPUSHs (ST (0));
		1529	}
		1530
		1531	void get_ascii (JSON *self)
		1532	ALIAS:
		1533	get_ascii = F_ASCII
		1534	get_latin1 = F_LATIN1
		1535	get_utf8 = F_UTF8
		1536	get_indent = F_INDENT
		1537	get_canonical = F_CANONICAL
		1538	get_space_before = F_SPACE_BEFORE
		1539	get_space_after = F_SPACE_AFTER
		1540	get_allow_nonref = F_ALLOW_NONREF
		1541	get_shrink = F_SHRINK
		1542	get_allow_blessed = F_ALLOW_BLESSED
		1543	get_convert_blessed = F_CONV_BLESSED
		1544	get_relaxed = F_RELAXED
		1545	PPCODE:
		1546	XPUSHs (boolSV (self->flags & ix));
		1547
		1548	void max_depth (JSON *self, UV max_depth = 0x80000000UL)
		1549	PPCODE:
		1550	{
		1551	UV log2 = 0;
		1552
		1553	if (max_depth > 0x80000000UL) max_depth = 0x80000000UL;
		1554
		1555	while ((1UL << log2) < max_depth)
		1556	++log2;
		1557
		1558	self->flags = self->flags & ~F_MAXDEPTH | (log2 << S_MAXDEPTH);
		1559
		1560	XPUSHs (ST (0));
		1561	}
		1562
		1563	U32 get_max_depth (JSON *self)
		1564	CODE:
		1565	RETVAL = DEC_DEPTH (self->flags);
1153	OUTPUT:	1566	OUTPUT:
1154	RETVAL	1567	RETVAL
1155		1568
1156	SV *ascii (SV *self, int enable = 1)	1569	void max_size (JSON *self, UV max_size = 0)
1157	ALIAS:	1570	PPCODE:
1158	ascii = F_ASCII	1571	{
1159	latin1 = F_LATIN1	1572	UV log2 = 0;
1160	utf8 = F_UTF8	1573
1161	indent = F_INDENT	1574	if (max_size > 0x80000000UL) max_size = 0x80000000UL;
1162	canonical = F_CANONICAL	1575	if (max_size == 1) max_size = 2;
1163	space_before = F_SPACE_BEFORE	1576
1164	space_after = F_SPACE_AFTER	1577	while ((1UL << log2) < max_size)
1165	pretty = F_PRETTY	1578	++log2;
1166	allow_nonref = F_ALLOW_NONREF	1579
1167	shrink = F_SHRINK	1580	self->flags = self->flags & ~F_MAXSIZE | (log2 << S_MAXSIZE);
		1581
		1582	XPUSHs (ST (0));
		1583	}
		1584
		1585	int get_max_size (JSON *self)
1168	CODE:	1586	CODE:
1169	{	1587	RETVAL = DEC_SIZE (self->flags);
1170	UV *uv = SvJSON (self);
1171	if (enable)
1172	*uv |= ix;
1173	else
1174	*uv &= ~ix;
1175
1176	RETVAL = newSVsv (self);
1177	}
1178	OUTPUT:	1588	OUTPUT:
1179	RETVAL	1589	RETVAL
1180		1590
1181	SV *max_depth (SV *self, UV max_depth = 0x80000000UL)	1591	void filter_json_object (JSON *self, SV *cb = &PL_sv_undef)
1182	CODE:
1183	{
1184	UV *uv = SvJSON (self);
1185	UV log2 = 0;
1186
1187	if (max_depth > 0x80000000UL) max_depth = 0x80000000UL;
1188
1189	while ((1UL << log2) < max_depth)
1190	++log2;
1191
1192	*uv = *uv & ~F_MAXDEPTH | (log2 << S_MAXDEPTH);
1193
1194	RETVAL = newSVsv (self);
1195	}
1196	OUTPUT:
1197	RETVAL
1198
1199	void encode (SV *self, SV *scalar)
1200	PPCODE:	1592	PPCODE:
1201	XPUSHs (encode_json (scalar, *SvJSON (self)));	1593	{
		1594	SvREFCNT_dec (self->cb_object);
		1595	self->cb_object = SvOK (cb) ? newSVsv (cb) : 0;
1202		1596
1203	void decode (SV *self, SV *jsonstr)	1597	XPUSHs (ST (0));
		1598	}
		1599
		1600	void filter_json_single_key_object (JSON *self, SV *key, SV *cb = &PL_sv_undef)
1204	PPCODE:	1601	PPCODE:
		1602	{
		1603	if (!self->cb_sk_object)
		1604	self->cb_sk_object = newHV ();
		1605
		1606	if (SvOK (cb))
		1607	hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0);
		1608	else
		1609	{
		1610	hv_delete_ent (self->cb_sk_object, key, G_DISCARD, 0);
		1611
		1612	if (!HvKEYS (self->cb_sk_object))
		1613	{
		1614	SvREFCNT_dec (self->cb_sk_object);
		1615	self->cb_sk_object = 0;
		1616	}
		1617	}
		1618
		1619	XPUSHs (ST (0));
		1620	}
		1621
		1622	void encode (JSON *self, SV *scalar)
		1623	PPCODE:
		1624	XPUSHs (encode_json (scalar, self));
		1625
		1626	void decode (JSON *self, SV *jsonstr)
		1627	PPCODE:
1205	XPUSHs (decode_json (jsonstr, *SvJSON (self), 0));	1628	XPUSHs (decode_json (jsonstr, self, 0));
1206		1629
1207	void decode_prefix (SV *self, SV *jsonstr)	1630	void decode_prefix (JSON *self, SV *jsonstr)
1208	PPCODE:	1631	PPCODE:
1209	{	1632	{
1210	UV offset;	1633	UV offset;
1211	EXTEND (SP, 2);	1634	EXTEND (SP, 2);
1212	PUSHs (decode_json (jsonstr, *SvJSON (self), &offset));	1635	PUSHs (decode_json (jsonstr, self, &offset));
1213	PUSHs (sv_2mortal (newSVuv (offset)));	1636	PUSHs (sv_2mortal (newSVuv (offset)));
1214	}	1637	}
1215		1638
		1639	void DESTROY (JSON *self)
		1640	CODE:
		1641	SvREFCNT_dec (self->cb_sk_object);
		1642	SvREFCNT_dec (self->cb_object);
		1643
1216	PROTOTYPES: ENABLE	1644	PROTOTYPES: ENABLE
1217		1645
1218	void to_json (SV *scalar)	1646	void encode_json (SV *scalar)
1219	ALIAS:	1647	ALIAS:
1220	objToJson = 0	1648	to_json_ = 0
		1649	encode_json = F_UTF8
1221	PPCODE:	1650	PPCODE:
		1651	{
		1652	JSON json = { F_DEFAULT | ix };
1222	XPUSHs (encode_json (scalar, F_DEFAULT | F_UTF8));	1653	XPUSHs (encode_json (scalar, &json));
		1654	}
1223		1655
1224	void from_json (SV *jsonstr)	1656	void decode_json (SV *jsonstr)
1225	ALIAS:	1657	ALIAS:
1226	jsonToObj = 0	1658	from_json_ = 0
		1659	decode_json = F_UTF8
1227	PPCODE:	1660	PPCODE:
		1661	{
		1662	JSON json = { F_DEFAULT | ix };
1228	XPUSHs (decode_json (jsonstr, F_DEFAULT | F_UTF8, 0));	1663	XPUSHs (decode_json (jsonstr, &json, 0));
		1664	}
1229		1665

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