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

Comparing JSON-XS/XS.xs (file contents):
Revision 1.77 by root, Tue Mar 25 06:37:38 2008 UTC vs.
Revision 1.127 by root, Fri Feb 26 21:46:45 2016 UTC

…		…
12	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	12	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)
13	# define snprintf _snprintf // C compilers have this in stdio.h	13	# define snprintf _snprintf // C compilers have this in stdio.h
14	#endif	14	#endif
15		15
16	// 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
17	// guarentees, though. if it breaks, you get to keep the pieces.	17	// guarantees, though. if it breaks, you get to keep the pieces.
18	#ifndef UTF8_MAXBYTES	18	#ifndef UTF8_MAXBYTES
19	# define UTF8_MAXBYTES 13	19	# define UTF8_MAXBYTES 13
20	#endif	20	#endif
21		21
		22	// compatibility with perl <5.18
		23	#ifndef HvNAMELEN_get
		24	# define HvNAMELEN_get(hv) strlen (HvNAME (hv))
		25	#endif
		26	#ifndef HvNAMELEN
		27	# define HvNAMELEN(hv) HvNAMELEN_get (hv)
		28	#endif
		29	#ifndef HvNAMEUTF8
		30	# define HvNAMEUTF8(hv) 0
		31	#endif
		32
		33	// three extra for rounding, sign, and end of string
22	#define IVUV_MAXCHARS (sizeof (UV) * CHAR_BIT * 28 / 93 + 2)	34	#define IVUV_MAXCHARS (sizeof (UV) * CHAR_BIT * 28 / 93 + 3)
23		35
24	#define F_ASCII 0x00000001UL	36	#define F_ASCII 0x00000001UL
25	#define F_LATIN1 0x00000002UL	37	#define F_LATIN1 0x00000002UL
26	#define F_UTF8 0x00000004UL	38	#define F_UTF8 0x00000004UL
27	#define F_INDENT 0x00000008UL	39	#define F_INDENT 0x00000008UL
…		…
31	#define F_ALLOW_NONREF 0x00000100UL	43	#define F_ALLOW_NONREF 0x00000100UL
32	#define F_SHRINK 0x00000200UL	44	#define F_SHRINK 0x00000200UL
33	#define F_ALLOW_BLESSED 0x00000400UL	45	#define F_ALLOW_BLESSED 0x00000400UL
34	#define F_CONV_BLESSED 0x00000800UL	46	#define F_CONV_BLESSED 0x00000800UL
35	#define F_RELAXED 0x00001000UL	47	#define F_RELAXED 0x00001000UL
36		48	#define F_ALLOW_UNKNOWN 0x00002000UL
37	#define F_MAXDEPTH 0xf8000000UL	49	#define F_ALLOW_TAGS 0x00004000UL
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	50	#define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing
42		51
43	#define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH))
44	#define DEC_SIZE(flags) (1UL << ((flags & F_MAXSIZE ) >> S_MAXSIZE ))
45
46	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER	52	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER
47	#define F_DEFAULT (9UL << S_MAXDEPTH)
48		53
49	#define INIT_SIZE 32 // initial scalar size to be allocated	54	#define INIT_SIZE 32 // initial scalar size to be allocated
50	#define INDENT_STEP 3 // spaces per indentation level	55	#define INDENT_STEP 3 // spaces per indentation level
51		56
52	#define SHORT_STRING_LEN 16384 // special-case strings of up to this size	57	#define SHORT_STRING_LEN 16384 // special-case strings of up to this size
		58
		59	#define DECODE_WANTS_OCTETS(json) ((json)->flags & F_UTF8)
53		60
54	#define SB do {	61	#define SB do {
55	#define SE } while (0)	62	#define SE } while (0)
56		63
57	#if __GNUC__ >= 3	64	#if __GNUC__ >= 3
…		…
67		74
68	#define IN_RANGE_INC(type,val,beg,end) \	75	#define IN_RANGE_INC(type,val,beg,end) \
69	((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \	76	((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \
70	<= (unsigned type)((unsigned type)(end) - (unsigned type)(beg)))	77	<= (unsigned type)((unsigned type)(end) - (unsigned type)(beg)))
71		78
		79	#define ERR_NESTING_EXCEEDED "json text or perl structure exceeds maximum nesting level (max_depth set too low?)"
		80
72	#ifdef USE_ITHREADS	81	#ifdef USE_ITHREADS
73	# define JSON_SLOW 1	82	# define JSON_SLOW 1
74	# define JSON_STASH (json_stash ? json_stash : gv_stashpv ("JSON::XS", 1))	83	# define JSON_STASH (json_stash ? json_stash : gv_stashpv ("JSON::XS", 1))
		84	# define BOOL_STASH (bool_stash ? bool_stash : gv_stashpv ("Types::Serialiser::Boolean", 1))
75	#else	85	#else
76	# define JSON_SLOW 0	86	# define JSON_SLOW 0
77	# define JSON_STASH json_stash	87	# define JSON_STASH json_stash
		88	# define BOOL_STASH bool_stash
78	#endif	89	#endif
79		90
80	static HV json_stash, json_boolean_stash; // JSON::XS::	91	// the amount of HEs to allocate on the stack, when sorting keys
81	static SV json_true, json_false;	92	#define STACK_HES 64
		93
		94	static HV json_stash, bool_stash; // JSON::XS::, Types::Serialiser::Boolean::
		95	static SV bool_true, bool_false, *sv_json;
82		96
83	enum {	97	enum {
84	INCR_M_WS = 0, // initial whitespace skipping, must be 0	98	INCR_M_WS = 0, // initial whitespace skipping, must be 0
85	INCR_M_STR, // inside string	99	INCR_M_STR, // inside string
86	INCR_M_BS, // inside backslash	100	INCR_M_BS, // inside backslash
		101	INCR_M_C0, // inside comment in initial whitespace sequence
		102	INCR_M_C1, // inside comment in other places
87	INCR_M_JSON // outside anything, count nesting	103	INCR_M_JSON // outside anything, count nesting
88	};	104	};
89		105
90	#define INCR_DONE(json) (!(json)->incr_nest && (json)->incr_mode == INCR_M_JSON)	106	#define INCR_DONE(json) ((json)->incr_nest <= 0 && (json)->incr_mode == INCR_M_JSON)
91		107
92	typedef struct {	108	typedef struct {
93	U32 flags;	109	U32 flags;
		110	U32 max_depth;
		111	STRLEN max_size;
		112
94	SV *cb_object;	113	SV *cb_object;
95	HV *cb_sk_object;	114	HV *cb_sk_object;
96		115
97	// for the incremental parser	116	// for the incremental parser
98	SV *incr_text; // the source text so far	117	SV *incr_text; // the source text so far
99	STRLEN incr_pos; // the current offset into the text	118	STRLEN incr_pos; // the current offset into the text
100	int incr_nest; // {[]}-nesting level	119	int incr_nest; // {[]}-nesting level
101	int incr_mode;	120	unsigned char incr_mode;
102	} JSON;	121	} JSON;
		122
		123	INLINE void
		124	json_init (JSON *json)
		125	{
		126	Zero (json, 1, JSON);
		127	json->max_depth = 512;
		128	}
103		129
104	/////////////////////////////////////////////////////////////////////////////	130	/////////////////////////////////////////////////////////////////////////////
105	// utility functions	131	// utility functions
106		132
		133	INLINE SV *
		134	get_bool (const char *name)
		135	{
		136	SV *sv = get_sv (name, 1);
		137
		138	SvREADONLY_on (sv);
		139	SvREADONLY_on (SvRV (sv));
		140
		141	return sv;
		142	}
		143
107	INLINE void	144	INLINE void
108	shrink (SV *sv)	145	shrink (SV *sv)
109	{	146	{
110	sv_utf8_downgrade (sv, 1);	147	sv_utf8_downgrade (sv, 1);
		148
111	if (SvLEN (sv) > SvCUR (sv) + 1)	149	if (SvLEN (sv) > SvCUR (sv) + 1)
112	{	150	{
113	#ifdef SvPV_shrink_to_cur	151	#ifdef SvPV_shrink_to_cur
114	SvPV_shrink_to_cur (sv);	152	SvPV_shrink_to_cur (sv);
115	#elif defined (SvPV_renew)	153	#elif defined (SvPV_renew)
…		…
159	*s++ = 0x80 \| ( ch & 0x3f);	197	*s++ = 0x80 \| ( ch & 0x3f);
160		198
161	return s;	199	return s;
162	}	200	}
163		201
		202	// convert offset pointer to character index, sv must be string
		203	static STRLEN
		204	ptr_to_index (SV sv, char offset)
		205	{
		206	return SvUTF8 (sv)
		207	? utf8_distance (offset, SvPVX (sv))
		208	: offset - SvPVX (sv);
		209	}
		210
		211	/////////////////////////////////////////////////////////////////////////////
		212	// fp hell
		213
		214	// scan a group of digits, and a trailing exponent
		215	static void
		216	json_atof_scan1 (const char s, NV accum, int *expo, int postdp, int maxdepth)
		217	{
		218	UV uaccum = 0;
		219	int eaccum = 0;
		220
		221	// if we recurse too deep, skip all remaining digits
		222	// to avoid a stack overflow attack
		223	if (expect_false (--maxdepth <= 0))
		224	while (((U8)*s - '0') < 10)
		225	++s;
		226
		227	for (;;)
		228	{
		229	U8 dig = (U8)*s - '0';
		230
		231	if (expect_false (dig >= 10))
		232	{
		233	if (dig == (U8)((U8)'.' - (U8)'0'))
		234	{
		235	++s;
		236	json_atof_scan1 (s, accum, expo, 1, maxdepth);
		237	}
		238	else if ((dig \| ' ') == 'e' - '0')
		239	{
		240	int exp2 = 0;
		241	int neg = 0;
		242
		243	++s;
		244
		245	if (*s == '-')
		246	{
		247	++s;
		248	neg = 1;
		249	}
		250	else if (*s == '+')
		251	++s;
		252
		253	while ((dig = (U8)*s - '0') < 10)
		254	exp2 = exp2 * 10 + *s++ - '0';
		255
		256	*expo += neg ? -exp2 : exp2;
		257	}
		258
		259	break;
		260	}
		261
		262	++s;
		263
		264	uaccum = uaccum * 10 + dig;
		265	++eaccum;
		266
		267	// if we have too many digits, then recurse for more
		268	// we actually do this for rather few digits
		269	if (uaccum >= (UV_MAX - 9) / 10)
		270	{
		271	if (postdp) *expo -= eaccum;
		272	json_atof_scan1 (s, accum, expo, postdp, maxdepth);
		273	if (postdp) *expo += eaccum;
		274
		275	break;
		276	}
		277	}
		278
		279	// this relies greatly on the quality of the pow ()
		280	// implementation of the platform, but a good
		281	// implementation is hard to beat.
		282	// (IEEE 754 conformant ones are required to be exact)
		283	if (postdp) *expo -= eaccum;
		284	accum += uaccum Perl_pow (10., *expo);
		285	*expo += eaccum;
		286	}
		287
		288	static NV
		289	json_atof (const char *s)
		290	{
		291	NV accum = 0.;
		292	int expo = 0;
		293	int neg = 0;
		294
		295	if (*s == '-')
		296	{
		297	++s;
		298	neg = 1;
		299	}
		300
		301	// a recursion depth of ten gives us >>500 bits
		302	json_atof_scan1 (s, &accum, &expo, 0, 10);
		303
		304	return neg ? -accum : accum;
		305	}
		306
		307	// target of scalar reference is bool? -1 == nope, 0 == false, 1 == true
		308	static int
		309	ref_bool_type (SV *sv)
		310	{
		311	svtype svt = SvTYPE (sv);
		312
		313	if (svt < SVt_PVAV)
		314	{
		315	STRLEN len = 0;
		316	char *pv = svt ? SvPV (sv, len) : 0;
		317
		318	if (len == 1)
		319	if (*pv == '1')
		320	return 1;
		321	else if (*pv == '0')
		322	return 0;
		323
		324	}
		325
		326	return -1;
		327	}
		328
		329	// returns whether scalar is not a reference in the sense of allow_nonref
		330	static int
		331	json_nonref (SV *scalar)
		332	{
		333	if (!SvROK (scalar))
		334	return 1;
		335
		336	scalar = SvRV (scalar);
		337
		338	if (SvSTASH (scalar) == bool_stash)
		339	return 1;
		340
		341	if (!SvOBJECT (scalar) && ref_bool_type (scalar) >= 0)
		342	return 1;
		343
		344	return 0;
		345	}
		346
164	/////////////////////////////////////////////////////////////////////////////	347	/////////////////////////////////////////////////////////////////////////////
165	// encoder	348	// encoder
166		349
167	// structure used for encoding JSON	350	// structure used for encoding JSON
168	typedef struct	351	typedef struct
…		…
170	char *cur; // SvPVX (sv) + current output position	353	char *cur; // SvPVX (sv) + current output position
171	char *end; // SvEND (sv)	354	char *end; // SvEND (sv)
172	SV *sv; // result scalar	355	SV *sv; // result scalar
173	JSON json;	356	JSON json;
174	U32 indent; // indentation level	357	U32 indent; // indentation level
175	U32 maxdepth; // max. indentation/recursion level
176	UV limit; // escape character values >= this value when encoding	358	UV limit; // escape character values >= this value when encoding
177	} enc_t;	359	} enc_t;
178		360
179	INLINE void	361	INLINE void
180	need (enc_t *enc, STRLEN len)	362	need (enc_t *enc, STRLEN len)
181	{	363	{
182	if (expect_false (enc->cur + len >= enc->end))	364	if (expect_false (enc->cur + len >= enc->end))
183	{	365	{
184	STRLEN cur = enc->cur - SvPVX (enc->sv);	366	STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);
185	SvGROW (enc->sv, cur + len + 1);	367	SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
186	enc->cur = SvPVX (enc->sv) + cur;	368	enc->cur = SvPVX (enc->sv) + cur;
187	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;	369	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;
188	}	370	}
189	}	371	}
190		372
…		…
265	(int)((uch - 0x10000) % 0x400 + 0xDC00));	447	(int)((uch - 0x10000) % 0x400 + 0xDC00));
266	enc->cur += 12;	448	enc->cur += 12;
267	}	449	}
268	else	450	else
269	{	451	{
270	static char hexdigit [16] = "0123456789abcdef";
271	need (enc, len += 5);	452	need (enc, len += 5);
272	*enc->cur++ = '\\';	453	*enc->cur++ = '\\';
273	*enc->cur++ = 'u';	454	*enc->cur++ = 'u';
274	*enc->cur++ = hexdigit [ uch >> 12 ];	455	*enc->cur++ = PL_hexdigit [ uch >> 12 ];
275	*enc->cur++ = hexdigit [(uch >> 8) & 15];	456	*enc->cur++ = PL_hexdigit [(uch >> 8) & 15];
276	*enc->cur++ = hexdigit [(uch >> 4) & 15];	457	*enc->cur++ = PL_hexdigit [(uch >> 4) & 15];
277	*enc->cur++ = hexdigit [(uch >> 0) & 15];	458	*enc->cur++ = PL_hexdigit [(uch >> 0) & 15];
278	}	459	}
279		460
280	str += clen;	461	str += clen;
281	}	462	}
282	else if (enc->json.flags & F_LATIN1)	463	else if (enc->json.flags & F_LATIN1)
…		…
353	static void	534	static void
354	encode_av (enc_t enc, AV av)	535	encode_av (enc_t enc, AV av)
355	{	536	{
356	int i, len = av_len (av);	537	int i, len = av_len (av);
357		538
358	if (enc->indent >= enc->maxdepth)	539	if (enc->indent >= enc->json.max_depth)
359	croak ("data structure too deep (hit recursion limit)");	540	croak (ERR_NESTING_EXCEEDED);
360		541
361	encode_ch (enc, '[');	542	encode_ch (enc, '[');
362		543
363	if (len >= 0)	544	if (len >= 0)
364	{	545	{
365	encode_nl (enc); ++enc->indent;	546	encode_nl (enc); ++enc->indent;
366		547
367	for (i = 0; i <= len; ++i)	548	for (i = 0; i <= len; ++i)
…		…
379	encode_comma (enc);	560	encode_comma (enc);
380	}	561	}
381		562
382	encode_nl (enc); --enc->indent; encode_indent (enc);	563	encode_nl (enc); --enc->indent; encode_indent (enc);
383	}	564	}
384		565
385	encode_ch (enc, ']');	566	encode_ch (enc, ']');
386	}	567	}
387		568
388	static void	569	static void
389	encode_hk (enc_t enc, HE he)	570	encode_hk (enc_t enc, HE he)
…		…
393	if (HeKLEN (he) == HEf_SVKEY)	574	if (HeKLEN (he) == HEf_SVKEY)
394	{	575	{
395	SV *sv = HeSVKEY (he);	576	SV *sv = HeSVKEY (he);
396	STRLEN len;	577	STRLEN len;
397	char *str;	578	char *str;
398		579
399	SvGETMAGIC (sv);	580	SvGETMAGIC (sv);
400	str = SvPV (sv, len);	581	str = SvPV (sv, len);
401		582
402	encode_str (enc, str, len, SvUTF8 (sv));	583	encode_str (enc, str, len, SvUTF8 (sv));
403	}	584	}
…		…
438		619
439	static void	620	static void
440	encode_hv (enc_t enc, HV hv)	621	encode_hv (enc_t enc, HV hv)
441	{	622	{
442	HE *he;	623	HE *he;
443	int count;
444		624
445	if (enc->indent >= enc->maxdepth)	625	if (enc->indent >= enc->json.max_depth)
446	croak ("data structure too deep (hit recursion limit)");	626	croak (ERR_NESTING_EXCEEDED);
447		627
448	encode_ch (enc, '{');	628	encode_ch (enc, '{');
449		629
450	// for canonical output we have to sort by keys first	630	// for canonical output we have to sort by keys first
451	// actually, this is mostly due to the stupid so-called	631	// actually, this is mostly due to the stupid so-called
452	// security workaround added somewhere in 5.8.x.	632	// security workaround added somewhere in 5.8.x
453	// that randomises hash orderings	633	// that randomises hash orderings
454	if (enc->json.flags & F_CANONICAL)	634	if (enc->json.flags & F_CANONICAL && !SvRMAGICAL (hv))
455	{	635	{
456	int count = hv_iterinit (hv);	636	int count = hv_iterinit (hv);
457		637
458	if (SvMAGICAL (hv))	638	if (SvMAGICAL (hv))
459	{	639	{
…		…
470	}	650	}
471		651
472	if (count)	652	if (count)
473	{	653	{
474	int i, fast = 1;	654	int i, fast = 1;
475	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	655	HE *hes_stack [STACK_HES];
476	HE *hes = _alloca (count sizeof (HE));	656	HE **hes = hes_stack;
477	#else	657
478	HE *hes [count]; // if your compiler dies here, you need to enable C99 mode	658	// allocate larger arrays on the heap
479	#endif	659	if (count > STACK_HES)
		660	{
		661	SV sv = sv_2mortal (NEWSV (0, count sizeof (*hes)));
		662	hes = (HE **)SvPVX (sv);
		663	}
480		664
481	i = 0;	665	i = 0;
482	while ((he = hv_iternext (hv)))	666	while ((he = hv_iternext (hv)))
483	{	667	{
484	hes [i++] = he;	668	hes [i++] = he;
…		…
553	// encode objects, arrays and special \0=false and \1=true values.	737	// encode objects, arrays and special \0=false and \1=true values.
554	static void	738	static void
555	encode_rv (enc_t enc, SV sv)	739	encode_rv (enc_t enc, SV sv)
556	{	740	{
557	svtype svt;	741	svtype svt;
		742	GV *method;
558		743
559	SvGETMAGIC (sv);	744	SvGETMAGIC (sv);
560	svt = SvTYPE (sv);	745	svt = SvTYPE (sv);
561		746
562	if (expect_false (SvOBJECT (sv)))	747	if (expect_false (SvOBJECT (sv)))
563	{	748	{
564	HV *stash = !JSON_SLOW \|\| json_boolean_stash	749	HV *stash = SvSTASH (sv);
565	? json_boolean_stash
566	: gv_stashpv ("JSON::XS::Boolean", 1);
567		750
568	if (SvSTASH (sv) == stash)	751	if (stash == bool_stash)
569	{	752	{
570	if (SvIV (sv))	753	if (SvIV (sv))
571	encode_str (enc, "true", 4, 0);	754	encode_str (enc, "true", 4, 0);
572	else	755	else
573	encode_str (enc, "false", 5, 0);	756	encode_str (enc, "false", 5, 0);
574	}	757	}
		758	else if ((enc->json.flags & F_ALLOW_TAGS) && (method = gv_fetchmethod_autoload (stash, "FREEZE", 0)))
		759	{
		760	int count;
		761	dSP;
		762
		763	ENTER; SAVETMPS;
		764	SAVESTACK_POS ();
		765	PUSHMARK (SP);
		766	EXTEND (SP, 2);
		767	// we re-bless the reference to get overload and other niceties right
		768	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
		769	PUSHs (sv_json);
		770
		771	PUTBACK;
		772	count = call_sv ((SV *)GvCV (method), G_ARRAY);
		773	SPAGAIN;
		774
		775	// catch this surprisingly common error
		776	if (SvROK (TOPs) && SvRV (TOPs) == sv)
		777	croak ("%s::FREEZE method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
		778
		779	encode_ch (enc, '(');
		780	encode_ch (enc, '"');
		781	encode_str (enc, HvNAME (stash), HvNAMELEN (stash), HvNAMEUTF8 (stash));
		782	encode_ch (enc, '"');
		783	encode_ch (enc, ')');
		784	encode_ch (enc, '[');
		785
		786	while (count)
		787	{
		788	encode_sv (enc, SP[1 - count--]);
		789
		790	if (count)
		791	encode_ch (enc, ',');
		792	}
		793
		794	encode_ch (enc, ']');
		795
		796	FREETMPS; LEAVE;
		797	}
		798	else if ((enc->json.flags & F_CONV_BLESSED) && (method = gv_fetchmethod_autoload (stash, "TO_JSON", 0)))
		799	{
		800	dSP;
		801
		802	ENTER; SAVETMPS;
		803	PUSHMARK (SP);
		804	// we re-bless the reference to get overload and other niceties right
		805	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
		806
		807	// calling with G_SCALAR ensures that we always get a 1 return value
		808	PUTBACK;
		809	call_sv ((SV *)GvCV (method), G_SCALAR);
		810	SPAGAIN;
		811
		812	// catch this surprisingly common error
		813	if (SvROK (TOPs) && SvRV (TOPs) == sv)
		814	croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
		815
		816	sv = POPs;
		817	PUTBACK;
		818
		819	encode_sv (enc, sv);
		820
		821	FREETMPS; LEAVE;
		822	}
		823	else if (enc->json.flags & F_ALLOW_BLESSED)
		824	encode_str (enc, "null", 4, 0);
575	else	825	else
576	{
577	#if 0
578	if (0 && sv_derived_from (rv, "JSON::Literal"))
579	{
580	// not yet
581	}
582	#endif
583	if (enc->json.flags & F_CONV_BLESSED)
584	{
585	// we re-bless the reference to get overload and other niceties right
586	GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 0);
587
588	if (to_json)
589	{
590	dSP;
591
592	ENTER; SAVETMPS; PUSHMARK (SP);
593	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv)));
594
595	// calling with G_SCALAR ensures that we always get a 1 return value
596	PUTBACK;
597	call_sv ((SV *)GvCV (to_json), G_SCALAR);
598	SPAGAIN;
599
600	// catch this surprisingly common error
601	if (SvROK (TOPs) && SvRV (TOPs) == sv)
602	croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
603
604	sv = POPs;
605	PUTBACK;
606
607	encode_sv (enc, sv);
608
609	FREETMPS; LEAVE;
610	}
611	else if (enc->json.flags & F_ALLOW_BLESSED)
612	encode_str (enc, "null", 4, 0);
613	else
614	croak ("encountered object '%s', but neither allow_blessed enabled nor TO_JSON method available on it",
615	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
616	}
617	else if (enc->json.flags & F_ALLOW_BLESSED)
618	encode_str (enc, "null", 4, 0);
619	else
620	croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled",	826	croak ("encountered object '%s', but neither allow_blessed, convert_blessed nor allow_tags settings are enabled (or TO_JSON/FREEZE method missing)",
621	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	827	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
622	}
623	}	828	}
624	else if (svt == SVt_PVHV)	829	else if (svt == SVt_PVHV)
625	encode_hv (enc, (HV *)sv);	830	encode_hv (enc, (HV *)sv);
626	else if (svt == SVt_PVAV)	831	else if (svt == SVt_PVAV)
627	encode_av (enc, (AV *)sv);	832	encode_av (enc, (AV *)sv);
628	else if (svt < SVt_PVAV)	833	else if (svt < SVt_PVAV)
629	{	834	{
630	STRLEN len = 0;	835	int bool_type = ref_bool_type (sv);
631	char *pv = svt ? SvPV (sv, len) : 0;
632		836
633	if (len == 1 && *pv == '1')	837	if (bool_type == 1)
634	encode_str (enc, "true", 4, 0);	838	encode_str (enc, "true", 4, 0);
635	else if (len == 1 && *pv == '0')	839	else if (bool_type == 0)
636	encode_str (enc, "false", 5, 0);	840	encode_str (enc, "false", 5, 0);
		841	else if (enc->json.flags & F_ALLOW_UNKNOWN)
		842	encode_str (enc, "null", 4, 0);
637	else	843	else
638	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",	844	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",
639	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	845	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
640	}	846	}
		847	else if (enc->json.flags & F_ALLOW_UNKNOWN)
		848	encode_str (enc, "null", 4, 0);
641	else	849	else
642	croak ("encountered %s, but JSON can only represent references to arrays or hashes",	850	croak ("encountered %s, but JSON can only represent references to arrays or hashes",
643	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	851	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
644	}	852	}
645		853
…		…
699	}	907	}
700	else	908	else
701	{	909	{
702	// large integer, use the (rather slow) snprintf way.	910	// large integer, use the (rather slow) snprintf way.
703	need (enc, IVUV_MAXCHARS);	911	need (enc, IVUV_MAXCHARS);
704	enc->cur +=	912	enc->cur +=
705	SvIsUV(sv)	913	SvIsUV(sv)
706	? snprintf (enc->cur, IVUV_MAXCHARS, "%"UVuf, (UV)SvUVX (sv))	914	? snprintf (enc->cur, IVUV_MAXCHARS, "%"UVuf, (UV)SvUVX (sv))
707	: snprintf (enc->cur, IVUV_MAXCHARS, "%"IVdf, (IV)SvIVX (sv));	915	: snprintf (enc->cur, IVUV_MAXCHARS, "%"IVdf, (IV)SvIVX (sv));
708	}	916	}
709	}	917	}
710	else if (SvROK (sv))	918	else if (SvROK (sv))
711	encode_rv (enc, SvRV (sv));	919	encode_rv (enc, SvRV (sv));
712	else if (!SvOK (sv))	920	else if (!SvOK (sv) \|\| enc->json.flags & F_ALLOW_UNKNOWN)
713	encode_str (enc, "null", 4, 0);	921	encode_str (enc, "null", 4, 0);
714	else	922	else
715	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",	923	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, check your input data",
716	SvPV_nolen (sv), SvFLAGS (sv));	924	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));
717	}	925	}
718		926
719	static SV *	927	static SV *
720	encode_json (SV scalar, JSON json)	928	encode_json (SV scalar, JSON json)
721	{	929	{
722	enc_t enc;	930	enc_t enc;
723		931
724	if (!(json->flags & F_ALLOW_NONREF) && !SvROK (scalar))	932	if (!(json->flags & F_ALLOW_NONREF) && json_nonref (scalar))
725	croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");	933	croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");
726		934
727	enc.json = *json;	935	enc.json = *json;
728	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	936	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
729	enc.cur = SvPVX (enc.sv);	937	enc.cur = SvPVX (enc.sv);
730	enc.end = SvEND (enc.sv);	938	enc.end = SvEND (enc.sv);
731	enc.indent = 0;	939	enc.indent = 0;
732	enc.maxdepth = DEC_DEPTH (enc.json.flags);
733	enc.limit = enc.json.flags & F_ASCII ? 0x000080UL	940	enc.limit = enc.json.flags & F_ASCII ? 0x000080UL
734	: enc.json.flags & F_LATIN1 ? 0x000100UL	941	: enc.json.flags & F_LATIN1 ? 0x000100UL
735	: 0x110000UL;	942	: 0x110000UL;
736		943
737	SvPOK_only (enc.sv);	944	SvPOK_only (enc.sv);
738	encode_sv (&enc, scalar);	945	encode_sv (&enc, scalar);
		946	encode_nl (&enc);
739		947
740	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));	948	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));
741	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings	949	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings
742		950
743	if (!(enc.json.flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))	951	if (!(enc.json.flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))
…		…
804	if (*dec->cur != ch) \	1012	if (*dec->cur != ch) \
805	ERR (# ch " expected"); \	1013	ERR (# ch " expected"); \
806	++dec->cur; \	1014	++dec->cur; \
807	SE	1015	SE
808		1016
809	#define DEC_INC_DEPTH if (++dec->depth > dec->maxdepth) ERR ("json datastructure exceeds maximum nesting level (set a higher max_depth)")	1017	#define DEC_INC_DEPTH if (++dec->depth > dec->json.max_depth) ERR (ERR_NESTING_EXCEEDED)
810	#define DEC_DEC_DEPTH --dec->depth	1018	#define DEC_DEC_DEPTH --dec->depth
811		1019
812	static SV decode_sv (dec_t dec);	1020	static SV decode_sv (dec_t dec);
813		1021
814	static signed char decode_hexdigit[256];	1022	static signed char decode_hexdigit[256];
…		…
923	else if (expect_true (ch >= 0x20 && ch < 0x80))	1131	else if (expect_true (ch >= 0x20 && ch < 0x80))
924	*cur++ = ch;	1132	*cur++ = ch;
925	else if (ch >= 0x80)	1133	else if (ch >= 0x80)
926	{	1134	{
927	STRLEN clen;	1135	STRLEN clen;
928	UV uch;
929		1136
930	--dec_cur;	1137	--dec_cur;
931		1138
932	uch = decode_utf8 (dec_cur, dec->end - dec_cur, &clen);	1139	decode_utf8 (dec_cur, dec->end - dec_cur, &clen);
933	if (clen == (STRLEN)-1)	1140	if (clen == (STRLEN)-1)
934	ERR ("malformed UTF-8 character in JSON string");	1141	ERR ("malformed UTF-8 character in JSON string");
935		1142
936	do	1143	do
937	cur++ = dec_cur++;	1144	cur++ = dec_cur++;
938	while (--clen);	1145	while (--clen);
939		1146
940	utf8 = 1;	1147	utf8 = 1;
941	}	1148	}
		1149	else if (ch == '\t' && dec->json.flags & F_RELAXED)
		1150	*cur++ = ch;
942	else	1151	else
943	{	1152	{
944	--dec_cur;	1153	--dec_cur;
945		1154
946	if (!ch)	1155	if (!ch)
…		…
954	{	1163	{
955	STRLEN len = cur - buf;	1164	STRLEN len = cur - buf;
956		1165
957	if (sv)	1166	if (sv)
958	{	1167	{
959	SvGROW (sv, SvCUR (sv) + len + 1);	1168	STRLEN cur = SvCUR (sv);
		1169
		1170	if (SvLEN (sv) <= cur + len)
		1171	SvGROW (sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
		1172
960	memcpy (SvPVX (sv) + SvCUR (sv), buf, len);	1173	memcpy (SvPVX (sv) + SvCUR (sv), buf, len);
961	SvCUR_set (sv, SvCUR (sv) + len);	1174	SvCUR_set (sv, SvCUR (sv) + len);
962	}	1175	}
963	else	1176	else
964	sv = newSVpvn (buf, len);	1177	sv = newSVpvn (buf, len);
…		…
1055		1268
1056	// special case the rather common 1..5-digit-int case	1269	// special case the rather common 1..5-digit-int case
1057	if (*start == '-')	1270	if (*start == '-')
1058	switch (len)	1271	switch (len)
1059	{	1272	{
1060	case 2: return newSViv (-( start [1] - '0' * 1));	1273	case 2: return newSViv (-(IV)( start [1] - '0' * 1));
1061	case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11));	1274	case 3: return newSViv (-(IV)( start [1] * 10 + start [2] - '0' * 11));
1062	case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111));	1275	case 4: return newSViv (-(IV)( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111));
1063	case 5: return newSViv (-( start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111));	1276	case 5: return newSViv (-(IV)( start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111));
1064	case 6: return newSViv (-(start [1] * 10000 + start [2] * 1000 + start [3] * 100 + start [4] * 10 + start [5] - '0' * 11111));	1277	case 6: return newSViv (-(IV)(start [1] * 10000 + start [2] * 1000 + start [3] * 100 + start [4] * 10 + start [5] - '0' * 11111));
1065	}	1278	}
1066	else	1279	else
1067	switch (len)	1280	switch (len)
1068	{	1281	{
1069	case 1: return newSViv ( start [0] - '0' * 1);	1282	case 1: return newSViv ( start [0] - '0' * 1);
1070	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);	1283	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);
1071	case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111);	1284	case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111);
1072	case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111);	1285	case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111);
1073	case 5: return newSViv ( start [0] * 10000 + start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 11111);	1286	case 5: return newSViv ( start [0] * 10000 + start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 11111);
1074	}	1287	}
1075		1288
1076	{	1289	{
1077	UV uv;	1290	UV uv;
1078	int numtype = grok_number (start, len, &uv);	1291	int numtype = grok_number (start, len, &uv);
…		…
1087	}	1300	}
1088		1301
1089	len -= *start == '-' ? 1 : 0;	1302	len -= *start == '-' ? 1 : 0;
1090		1303
1091	// does not fit into IV or UV, try NV	1304	// does not fit into IV or UV, try NV
1092	if ((sizeof (NV) == sizeof (double) && DBL_DIG >= len)	1305	if (len <= NV_DIG)
1093	#if defined (LDBL_DIG)
1094	\|\| (sizeof (NV) == sizeof (long double) && LDBL_DIG >= len)
1095	#endif
1096	)
1097	// fits into NV without loss of precision	1306	// fits into NV without loss of precision
1098	return newSVnv (Atof (start));	1307	return newSVnv (json_atof (start));
1099		1308
1100	// everything else fails, convert it to a string	1309	// everything else fails, convert it to a string
1101	return newSVpvn (start, dec->cur - start);	1310	return newSVpvn (start, dec->cur - start);
1102	}	1311	}
1103		1312
1104	// loss of precision here	1313	// loss of precision here
1105	return newSVnv (Atof (start));	1314	return newSVnv (json_atof (start));
1106		1315
1107	fail:	1316	fail:
1108	return 0;	1317	return 0;
1109	}	1318	}
1110		1319
…		…
1134	if (*dec->cur == ']')	1343	if (*dec->cur == ']')
1135	{	1344	{
1136	++dec->cur;	1345	++dec->cur;
1137	break;	1346	break;
1138	}	1347	}
1139		1348
1140	if (*dec->cur != ',')	1349	if (*dec->cur != ',')
1141	ERR (", or ] expected while parsing array");	1350	ERR (", or ] expected while parsing array");
1142		1351
1143	++dec->cur;	1352	++dec->cur;
1144		1353
…		…
1268		1477
1269	hv_iterinit (hv);	1478	hv_iterinit (hv);
1270	he = hv_iternext (hv);	1479	he = hv_iternext (hv);
1271	hv_iterinit (hv);	1480	hv_iterinit (hv);
1272		1481
1273	// the next line creates a mortal sv each time its called.	1482	// the next line creates a mortal sv each time it's called.
1274	// might want to optimise this for common cases.	1483	// might want to optimise this for common cases.
1275	cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0);	1484	cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0);
1276		1485
1277	if (cb)	1486	if (cb)
1278	{	1487	{
1279	dSP;	1488	dSP;
1280	int count;	1489	int count;
1281		1490
1282	ENTER; SAVETMPS; PUSHMARK (SP);	1491	ENTER; SAVETMPS;
		1492	SAVESTACK_POS ();
		1493	PUSHMARK (SP);
1283	XPUSHs (HeVAL (he));	1494	XPUSHs (HeVAL (he));
		1495	sv_2mortal (sv);
1284		1496
1285	PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN;	1497	PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN;
1286		1498
1287	if (count == 1)	1499	if (count == 1)
1288	{	1500	{
1289	sv = newSVsv (POPs);	1501	sv = newSVsv (POPs);
1290	FREETMPS; LEAVE;	1502	FREETMPS; LEAVE;
1291	return sv;	1503	return sv;
1292	}	1504	}
1293		1505
		1506	SvREFCNT_inc (sv);
1294	FREETMPS; LEAVE;	1507	FREETMPS; LEAVE;
1295	}	1508	}
1296	}	1509	}
1297		1510
1298	if (dec->json.cb_object)	1511	if (dec->json.cb_object)
1299	{	1512	{
1300	dSP;	1513	dSP;
1301	int count;	1514	int count;
1302		1515
1303	ENTER; SAVETMPS; PUSHMARK (SP);	1516	ENTER; SAVETMPS;
		1517	SAVESTACK_POS ();
		1518	PUSHMARK (SP);
1304	XPUSHs (sv_2mortal (sv));	1519	XPUSHs (sv_2mortal (sv));
1305		1520
1306	PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN;	1521	PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN;
1307		1522
1308	if (count == 1)	1523	if (count == 1)
…		…
1324	DEC_DEC_DEPTH;	1539	DEC_DEC_DEPTH;
1325	return 0;	1540	return 0;
1326	}	1541	}
1327		1542
1328	static SV *	1543	static SV *
		1544	decode_tag (dec_t *dec)
		1545	{
		1546	SV *tag = 0;
		1547	SV *val = 0;
		1548
		1549	if (!(dec->json.flags & F_ALLOW_TAGS))
		1550	ERR ("malformed JSON string, neither array, object, number, string or atom");
		1551
		1552	++dec->cur;
		1553
		1554	decode_ws (dec);
		1555
		1556	tag = decode_sv (dec);
		1557	if (!tag)
		1558	goto fail;
		1559
		1560	if (!SvPOK (tag))
		1561	ERR ("malformed JSON string, (tag) must be a string");
		1562
		1563	decode_ws (dec);
		1564
		1565	if (*dec->cur != ')')
		1566	ERR (") expected after tag");
		1567
		1568	++dec->cur;
		1569
		1570	decode_ws (dec);
		1571
		1572	val = decode_sv (dec);
		1573	if (!val)
		1574	goto fail;
		1575
		1576	if (!SvROK (val) \|\| SvTYPE (SvRV (val)) != SVt_PVAV)
		1577	ERR ("malformed JSON string, tag value must be an array");
		1578
		1579	{
		1580	AV av = (AV )SvRV (val);
		1581	int i, len = av_len (av) + 1;
		1582	HV *stash = gv_stashsv (tag, 0);
		1583	SV *sv;
		1584
		1585	if (!stash)
		1586	ERR ("cannot decode perl-object (package does not exist)");
		1587
		1588	GV *method = gv_fetchmethod_autoload (stash, "THAW", 0);
		1589
		1590	if (!method)
		1591	ERR ("cannot decode perl-object (package does not have a THAW method)");
		1592
		1593	dSP;
		1594
		1595	ENTER; SAVETMPS;
		1596	PUSHMARK (SP);
		1597	EXTEND (SP, len + 2);
		1598	// we re-bless the reference to get overload and other niceties right
		1599	PUSHs (tag);
		1600	PUSHs (sv_json);
		1601
		1602	for (i = 0; i < len; ++i)
		1603	PUSHs (*av_fetch (av, i, 1));
		1604
		1605	PUTBACK;
		1606	call_sv ((SV *)GvCV (method), G_SCALAR);
		1607	SPAGAIN;
		1608
		1609	SvREFCNT_dec (tag);
		1610	SvREFCNT_dec (val);
		1611	sv = SvREFCNT_inc (POPs);
		1612
		1613	PUTBACK;
		1614
		1615	FREETMPS; LEAVE;
		1616
		1617	return sv;
		1618	}
		1619
		1620	fail:
		1621	SvREFCNT_dec (tag);
		1622	SvREFCNT_dec (val);
		1623	return 0;
		1624	}
		1625
		1626	static SV *
1329	decode_sv (dec_t *dec)	1627	decode_sv (dec_t *dec)
1330	{	1628	{
1331	// the beauty of JSON: you need exactly one character lookahead	1629	// the beauty of JSON: you need exactly one character lookahead
1332	// to parse everything.	1630	// to parse everything.
1333	switch (*dec->cur)	1631	switch (*dec->cur)
1334	{	1632	{
1335	case '"': ++dec->cur; return decode_str (dec);	1633	case '"': ++dec->cur; return decode_str (dec);
1336	case '[': ++dec->cur; return decode_av (dec);	1634	case '[': ++dec->cur; return decode_av (dec);
1337	case '{': ++dec->cur; return decode_hv (dec);	1635	case '{': ++dec->cur; return decode_hv (dec);
		1636	case '(': return decode_tag (dec);
1338		1637
1339	case '-':	1638	case '-':
1340	case '0': case '1': case '2': case '3': case '4':	1639	case '0': case '1': case '2': case '3': case '4':
1341	case '5': case '6': case '7': case '8': case '9':	1640	case '5': case '6': case '7': case '8': case '9':
1342	return decode_num (dec);	1641	return decode_num (dec);
…		…
1344	case 't':	1643	case 't':
1345	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))	1644	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))
1346	{	1645	{
1347	dec->cur += 4;	1646	dec->cur += 4;
1348	#if JSON_SLOW	1647	#if JSON_SLOW
1349	json_true = get_sv ("JSON::XS::true", 1); SvREADONLY_on (json_true);	1648	bool_true = get_bool ("Types::Serialiser::true");
1350	#endif	1649	#endif
1351	return SvREFCNT_inc (json_true);	1650	return newSVsv (bool_true);
1352	}	1651	}
1353	else	1652	else
1354	ERR ("'true' expected");	1653	ERR ("'true' expected");
1355		1654
1356	break;	1655	break;
…		…
1358	case 'f':	1657	case 'f':
1359	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))	1658	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))
1360	{	1659	{
1361	dec->cur += 5;	1660	dec->cur += 5;
1362	#if JSON_SLOW	1661	#if JSON_SLOW
1363	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);	1662	bool_false = get_bool ("Types::Serialiser::false");
1364	#endif	1663	#endif
1365	return SvREFCNT_inc (json_false);	1664	return newSVsv (bool_false);
1366	}	1665	}
1367	else	1666	else
1368	ERR ("'false' expected");	1667	ERR ("'false' expected");
1369		1668
1370	break;	1669	break;
…		…
1379	ERR ("'null' expected");	1678	ERR ("'null' expected");
1380		1679
1381	break;	1680	break;
1382		1681
1383	default:	1682	default:
1384	ERR ("malformed JSON string, neither array, object, number, string or atom");	1683	ERR ("malformed JSON string, neither tag, array, object, number, string or atom");
1385	break;	1684	break;
1386	}	1685	}
1387		1686
1388	fail:	1687	fail:
1389	return 0;	1688	return 0;
1390	}	1689	}
1391		1690
1392	static SV *	1691	static SV *
1393	decode_json (SV string, JSON json, STRLEN *offset_return)	1692	decode_json (SV string, JSON json, char **offset_return)
1394	{	1693	{
1395	dec_t dec;	1694	dec_t dec;
1396	STRLEN offset;
1397	SV *sv;	1695	SV *sv;
1398		1696
		1697	/* work around bugs in 5.10 where manipulating magic values
		1698	* makes perl ignore the magic in subsequent accesses.
		1699	* also make a copy of non-PV values, to get them into a clean
		1700	* state (SvPV should do that, but it's buggy, see below).
		1701	*
		1702	* SvIsCOW_shared_hash works around a bug in perl (possibly 5.16),
		1703	* as reported by Reini Urban.
		1704	*/
1399	SvGETMAGIC (string);	1705	/SvGETMAGIC (string);/
		1706	if (SvMAGICAL (string) \|\| !SvPOK (string) \|\| SvIsCOW_shared_hash (string))
		1707	string = sv_2mortal (newSVsv (string));
		1708
1400	SvUPGRADE (string, SVt_PV);	1709	SvUPGRADE (string, SVt_PV);
1401		1710
1402	if (json->flags & F_MAXSIZE && SvCUR (string) > DEC_SIZE (json->flags))	1711	/* work around a bug in perl 5.10, which causes SvCUR to fail an
		1712	* assertion with -DDEBUGGING, although SvCUR is documented to
		1713	* return the xpv_cur field which certainly exists after upgrading.
		1714	* according to nicholas clark, calling SvPOK fixes this.
		1715	* But it doesn't fix it, so try another workaround, call SvPV_nolen
		1716	* and hope for the best.
		1717	* Damnit, SvPV_nolen still trips over yet another assertion. This
		1718	* assertion business is seriously broken, try yet another workaround
		1719	* for the broken -DDEBUGGING.
		1720	*/
		1721	{
		1722	#ifdef DEBUGGING
		1723	STRLEN offset = SvOK (string) ? sv_len (string) : 0;
		1724	#else
		1725	STRLEN offset = SvCUR (string);
		1726	#endif
		1727
		1728	if (offset > json->max_size && json->max_size)
1403	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",	1729	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",
1404	(unsigned long)SvCUR (string), (unsigned long)DEC_SIZE (json->flags));	1730	(unsigned long)SvCUR (string), (unsigned long)json->max_size);
		1731	}
1405		1732
1406	if (json->flags & F_UTF8)	1733	if (DECODE_WANTS_OCTETS (json))
1407	sv_utf8_downgrade (string, 0);	1734	sv_utf8_downgrade (string, 0);
1408	else	1735	else
1409	sv_utf8_upgrade (string);	1736	sv_utf8_upgrade (string);
1410		1737
1411	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP	1738	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP
1412		1739
1413	dec.json = *json;	1740	dec.json = *json;
1414	dec.cur = SvPVX (string);	1741	dec.cur = SvPVX (string);
1415	dec.end = SvEND (string);	1742	dec.end = SvEND (string);
1416	dec.err = 0;	1743	dec.err = 0;
1417	dec.depth = 0;	1744	dec.depth = 0;
1418	dec.maxdepth = DEC_DEPTH (dec.json.flags);
1419		1745
1420	if (dec.json.cb_object \|\| dec.json.cb_sk_object)	1746	if (dec.json.cb_object \|\| dec.json.cb_sk_object)
1421	dec.json.flags \|= F_HOOK;	1747	dec.json.flags \|= F_HOOK;
1422		1748
1423	*dec.end = 0; // this should basically be a nop, too, but make sure it's there	1749	*dec.end = 0; // this should basically be a nop, too, but make sure it's there
1424		1750
1425	decode_ws (&dec);	1751	decode_ws (&dec);
1426	sv = decode_sv (&dec);	1752	sv = decode_sv (&dec);
		1753
		1754	if (offset_return)
		1755	*offset_return = dec.cur;
1427		1756
1428	if (!(offset_return \|\| !sv))	1757	if (!(offset_return \|\| !sv))
1429	{	1758	{
1430	// check for trailing garbage	1759	// check for trailing garbage
1431	decode_ws (&dec);	1760	decode_ws (&dec);
…		…
1434	{	1763	{
1435	dec.err = "garbage after JSON object";	1764	dec.err = "garbage after JSON object";
1436	SvREFCNT_dec (sv);	1765	SvREFCNT_dec (sv);
1437	sv = 0;	1766	sv = 0;
1438	}	1767	}
1439	}
1440
1441	if (offset_return \|\| !sv)
1442	{
1443	offset = dec.json.flags & F_UTF8
1444	? dec.cur - SvPVX (string)
1445	: utf8_distance (dec.cur, SvPVX (string));
1446
1447	if (offset_return)
1448	*offset_return = offset;
1449	}	1768	}
1450		1769
1451	if (!sv)	1770	if (!sv)
1452	{	1771	{
1453	SV *uni = sv_newmortal ();	1772	SV *uni = sv_newmortal ();
…		…
1459	SAVEVPTR (PL_curcop);	1778	SAVEVPTR (PL_curcop);
1460	PL_curcop = &cop;	1779	PL_curcop = &cop;
1461	pv_uni_display (uni, dec.cur, dec.end - dec.cur, 20, UNI_DISPLAY_QQ);	1780	pv_uni_display (uni, dec.cur, dec.end - dec.cur, 20, UNI_DISPLAY_QQ);
1462	LEAVE;	1781	LEAVE;
1463		1782
1464	croak ("%s, at character offset %d [\"%s\"]",	1783	croak ("%s, at character offset %d (before \"%s\")",
1465	dec.err,	1784	dec.err,
1466	(int)offset,	1785	(int)ptr_to_index (string, dec.cur),
1467	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");	1786	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");
1468	}	1787	}
1469		1788
1470	sv = sv_2mortal (sv);	1789	sv = sv_2mortal (sv);
1471		1790
1472	if (!(dec.json.flags & F_ALLOW_NONREF) && !SvROK (sv))	1791	if (!(dec.json.flags & F_ALLOW_NONREF) && json_nonref (sv))
1473	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");	1792	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");
1474		1793
1475	return sv;	1794	return sv;
1476	}	1795	}
1477		1796
…		…
1480		1799
1481	static void	1800	static void
1482	incr_parse (JSON *self)	1801	incr_parse (JSON *self)
1483	{	1802	{
1484	const char *p = SvPVX (self->incr_text) + self->incr_pos;	1803	const char *p = SvPVX (self->incr_text) + self->incr_pos;
		1804
		1805	// the state machine here is a bit convoluted and could be simplified a lot
		1806	// but this would make it slower, so...
1485		1807
1486	for (;;)	1808	for (;;)
1487	{	1809	{
1488	//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	1810	//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
1489	switch (self->incr_mode)	1811	switch (self->incr_mode)
1490	{	1812	{
1491	// only used for intiial whitespace skipping	1813	// only used for initial whitespace skipping
1492	case INCR_M_WS:	1814	case INCR_M_WS:
1493	for (;;)	1815	for (;;)
1494	{	1816	{
1495	if (*p > 0x20)	1817	if (*p > 0x20)
1496	{	1818	{
		1819	if (*p == '#')
		1820	{
		1821	self->incr_mode = INCR_M_C0;
		1822	goto incr_m_c;
		1823	}
		1824	else
		1825	{
1497	self->incr_mode = INCR_M_JSON;	1826	self->incr_mode = INCR_M_JSON;
1498	goto incr_m_json;	1827	goto incr_m_json;
		1828	}
1499	}	1829	}
1500	else if (!*p)	1830	else if (!*p)
1501	goto interrupt;	1831	goto interrupt;
1502		1832
1503	++p;	1833	++p;
…		…
1509	goto interrupt;	1839	goto interrupt;
1510		1840
1511	++p;	1841	++p;
1512	self->incr_mode = INCR_M_STR;	1842	self->incr_mode = INCR_M_STR;
1513	goto incr_m_str;	1843	goto incr_m_str;
		1844
		1845	// inside #-style comments
		1846	case INCR_M_C0:
		1847	case INCR_M_C1:
		1848	incr_m_c:
		1849	for (;;)
		1850	{
		1851	if (*p == '\n')
		1852	{
		1853	self->incr_mode = self->incr_mode == INCR_M_C0 ? INCR_M_WS : INCR_M_JSON;
		1854	break;
		1855	}
		1856	else if (!*p)
		1857	goto interrupt;
		1858
		1859	++p;
		1860	}
		1861
		1862	break;
1514		1863
1515	// inside a string	1864	// inside a string
1516	case INCR_M_STR:	1865	case INCR_M_STR:
1517	incr_m_str:	1866	incr_m_str:
1518	for (;;)	1867	for (;;)
…		…
1569	self->incr_mode = INCR_M_STR;	1918	self->incr_mode = INCR_M_STR;
1570	goto incr_m_str;	1919	goto incr_m_str;
1571		1920
1572	case '[':	1921	case '[':
1573	case '{':	1922	case '{':
		1923	case '(':
1574	++self->incr_nest;	1924	if (++self->incr_nest > self->max_depth)
		1925	croak (ERR_NESTING_EXCEEDED);
1575	break;	1926	break;
1576		1927
1577	case ']':	1928	case ']':
1578	case '}':	1929	case '}':
1579	if (!--self->incr_nest)	1930	if (--self->incr_nest <= 0)
1580	goto interrupt;	1931	goto interrupt;
		1932	break;
		1933
		1934	case ')':
		1935	--self->incr_nest;
		1936	break;
		1937
		1938	case '#':
		1939	self->incr_mode = INCR_M_C1;
		1940	goto incr_m_c;
1581	}	1941	}
1582	}	1942	}
1583	}	1943	}
1584		1944
1585	modechange:	1945	modechange:
1586	;	1946	;
1587	}	1947	}
1588		1948
1589	interrupt:	1949	interrupt:
1590	self->incr_pos = p - SvPVX (self->incr_text);	1950	self->incr_pos = p - SvPVX (self->incr_text);
		1951	//printf ("interrupt<%.*s>\n", self->incr_pos, SvPVX(self->incr_text));//D
1591	//printf ("return pos %d mode %d nest %d\n", self->incr_pos, self->incr_mode, self->incr_nest);//D	1952	//printf ("return pos %d mode %d nest %d\n", self->incr_pos, self->incr_mode, self->incr_nest);//D
1592	}	1953	}
1593		1954
1594	/////////////////////////////////////////////////////////////////////////////	1955	/////////////////////////////////////////////////////////////////////////////
1595	// XS interface functions	1956	// XS interface functions
…		…
1605	i >= '0' && i <= '9' ? i - '0'	1966	i >= '0' && i <= '9' ? i - '0'
1606	: i >= 'a' && i <= 'f' ? i - 'a' + 10	1967	: i >= 'a' && i <= 'f' ? i - 'a' + 10
1607	: i >= 'A' && i <= 'F' ? i - 'A' + 10	1968	: i >= 'A' && i <= 'F' ? i - 'A' + 10
1608	: -1;	1969	: -1;
1609		1970
1610	json_stash = gv_stashpv ("JSON::XS" , 1);	1971	json_stash = gv_stashpv ("JSON::XS" , 1);
1611	json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1);	1972	bool_stash = gv_stashpv ("Types::Serialiser::Boolean", 1);
		1973	bool_true = get_bool ("Types::Serialiser::true");
		1974	bool_false = get_bool ("Types::Serialiser::false");
1612		1975
1613	json_true = get_sv ("JSON::XS::true" , 1); SvREADONLY_on (json_true );	1976	sv_json = newSVpv ("JSON", 0);
1614	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);	1977	SvREADONLY_on (sv_json);
		1978
		1979	CvNODEBUG_on (get_cv ("JSON::XS::incr_text", 0)); /* the debugger completely breaks lvalue subs */
1615	}	1980	}
1616		1981
1617	PROTOTYPES: DISABLE	1982	PROTOTYPES: DISABLE
1618		1983
1619	void CLONE (...)	1984	void CLONE (...)
1620	CODE:	1985	CODE:
1621	json_stash = 0;	1986	json_stash = 0;
1622	json_boolean_stash = 0;	1987	bool_stash = 0;
1623		1988
1624	void new (char *klass)	1989	void new (char *klass)
1625	PPCODE:	1990	PPCODE:
1626	{	1991	{
1627	SV *pv = NEWSV (0, sizeof (JSON));	1992	SV *pv = NEWSV (0, sizeof (JSON));
1628	SvPOK_only (pv);	1993	SvPOK_only (pv);
1629	Zero (SvPVX (pv), 1, JSON);	1994	json_init ((JSON *)SvPVX (pv));
1630	((JSON *)SvPVX (pv))->flags = F_DEFAULT;
1631	XPUSHs (sv_2mortal (sv_bless (	1995	XPUSHs (sv_2mortal (sv_bless (
1632	newRV_noinc (pv),	1996	newRV_noinc (pv),
1633	strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1)	1997	strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1)
1634	)));	1998	)));
1635	}	1999	}
…		…
1647	allow_nonref = F_ALLOW_NONREF	2011	allow_nonref = F_ALLOW_NONREF
1648	shrink = F_SHRINK	2012	shrink = F_SHRINK
1649	allow_blessed = F_ALLOW_BLESSED	2013	allow_blessed = F_ALLOW_BLESSED
1650	convert_blessed = F_CONV_BLESSED	2014	convert_blessed = F_CONV_BLESSED
1651	relaxed = F_RELAXED	2015	relaxed = F_RELAXED
		2016	allow_unknown = F_ALLOW_UNKNOWN
		2017	allow_tags = F_ALLOW_TAGS
1652	PPCODE:	2018	PPCODE:
1653	{	2019	{
1654	if (enable)	2020	if (enable)
1655	self->flags \|= ix;	2021	self->flags \|= ix;
1656	else	2022	else
…		…
1671	get_allow_nonref = F_ALLOW_NONREF	2037	get_allow_nonref = F_ALLOW_NONREF
1672	get_shrink = F_SHRINK	2038	get_shrink = F_SHRINK
1673	get_allow_blessed = F_ALLOW_BLESSED	2039	get_allow_blessed = F_ALLOW_BLESSED
1674	get_convert_blessed = F_CONV_BLESSED	2040	get_convert_blessed = F_CONV_BLESSED
1675	get_relaxed = F_RELAXED	2041	get_relaxed = F_RELAXED
		2042	get_allow_unknown = F_ALLOW_UNKNOWN
		2043	get_allow_tags = F_ALLOW_TAGS
1676	PPCODE:	2044	PPCODE:
1677	XPUSHs (boolSV (self->flags & ix));	2045	XPUSHs (boolSV (self->flags & ix));
1678		2046
1679	void max_depth (JSON *self, UV max_depth = 0x80000000UL)	2047	void max_depth (JSON *self, U32 max_depth = 0x80000000UL)
1680	PPCODE:	2048	PPCODE:
1681	{	2049	self->max_depth = max_depth;
1682	UV log2 = 0;
1683
1684	if (max_depth > 0x80000000UL) max_depth = 0x80000000UL;
1685
1686	while ((1UL << log2) < max_depth)
1687	++log2;
1688
1689	self->flags = self->flags & ~F_MAXDEPTH \| (log2 << S_MAXDEPTH);
1690
1691	XPUSHs (ST (0));	2050	XPUSHs (ST (0));
1692	}
1693		2051
1694	U32 get_max_depth (JSON *self)	2052	U32 get_max_depth (JSON *self)
1695	CODE:	2053	CODE:
1696	RETVAL = DEC_DEPTH (self->flags);	2054	RETVAL = self->max_depth;
1697	OUTPUT:	2055	OUTPUT:
1698	RETVAL	2056	RETVAL
1699		2057
1700	void max_size (JSON *self, UV max_size = 0)	2058	void max_size (JSON *self, U32 max_size = 0)
1701	PPCODE:	2059	PPCODE:
1702	{	2060	self->max_size = max_size;
1703	UV log2 = 0;
1704
1705	if (max_size > 0x80000000UL) max_size = 0x80000000UL;
1706	if (max_size == 1) max_size = 2;
1707
1708	while ((1UL << log2) < max_size)
1709	++log2;
1710
1711	self->flags = self->flags & ~F_MAXSIZE \| (log2 << S_MAXSIZE);
1712
1713	XPUSHs (ST (0));	2061	XPUSHs (ST (0));
1714	}
1715		2062
1716	int get_max_size (JSON *self)	2063	int get_max_size (JSON *self)
1717	CODE:	2064	CODE:
1718	RETVAL = DEC_SIZE (self->flags);	2065	RETVAL = self->max_size;
1719	OUTPUT:	2066	OUTPUT:
1720	RETVAL	2067	RETVAL
1721		2068
1722	void filter_json_object (JSON self, SV cb = &PL_sv_undef)	2069	void filter_json_object (JSON self, SV cb = &PL_sv_undef)
1723	PPCODE:	2070	PPCODE:
…		…
1729	}	2076	}
1730		2077
1731	void filter_json_single_key_object (JSON self, SV key, SV *cb = &PL_sv_undef)	2078	void filter_json_single_key_object (JSON self, SV key, SV *cb = &PL_sv_undef)
1732	PPCODE:	2079	PPCODE:
1733	{	2080	{
1734	if (!self->cb_sk_object)	2081	if (!self->cb_sk_object)
1735	self->cb_sk_object = newHV ();	2082	self->cb_sk_object = newHV ();
1736		2083
1737	if (SvOK (cb))	2084	if (SvOK (cb))
1738	hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0);	2085	hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0);
1739	else	2086	else
…		…
1750	XPUSHs (ST (0));	2097	XPUSHs (ST (0));
1751	}	2098	}
1752		2099
1753	void encode (JSON self, SV scalar)	2100	void encode (JSON self, SV scalar)
1754	PPCODE:	2101	PPCODE:
1755	XPUSHs (encode_json (scalar, self));	2102	PUTBACK; scalar = encode_json (scalar, self); SPAGAIN;
		2103	XPUSHs (scalar);
1756		2104
1757	void decode (JSON self, SV jsonstr)	2105	void decode (JSON self, SV jsonstr)
1758	PPCODE:	2106	PPCODE:
1759	XPUSHs (decode_json (jsonstr, self, 0));	2107	PUTBACK; jsonstr = decode_json (jsonstr, self, 0); SPAGAIN;
		2108	XPUSHs (jsonstr);
1760		2109
1761	void decode_prefix (JSON self, SV jsonstr)	2110	void decode_prefix (JSON self, SV jsonstr)
1762	PPCODE:	2111	PPCODE:
1763	{	2112	{
1764	STRLEN offset;	2113	SV *sv;
		2114	char *offset;
		2115	PUTBACK; sv = decode_json (jsonstr, self, &offset); SPAGAIN;
1765	EXTEND (SP, 2);	2116	EXTEND (SP, 2);
1766	PUSHs (decode_json (jsonstr, self, &offset));	2117	PUSHs (sv);
1767	PUSHs (sv_2mortal (newSVuv (offset)));	2118	PUSHs (sv_2mortal (newSVuv (ptr_to_index (jsonstr, offset))));
1768	}	2119	}
1769		2120
1770	void incr_parse (JSON self, SV jsonstr = 0)	2121	void incr_parse (JSON self, SV jsonstr = 0)
1771	PPCODE:	2122	PPCODE:
1772	{	2123	{
1773	if (!self->incr_text)	2124	if (!self->incr_text)
1774	self->incr_text = newSVpvn ("", 0);	2125	self->incr_text = newSVpvn ("", 0);
		2126
		2127	/* if utf8-ness doesn't match the decoder, need to upgrade/downgrade */
		2128	if (!DECODE_WANTS_OCTETS (self) == !SvUTF8 (self->incr_text))
		2129	if (DECODE_WANTS_OCTETS (self))
		2130	{
		2131	if (self->incr_pos)
		2132	self->incr_pos = utf8_length ((U8 *)SvPVX (self->incr_text),
		2133	(U8 *)SvPVX (self->incr_text) + self->incr_pos);
		2134
		2135	sv_utf8_downgrade (self->incr_text, 0);
		2136	}
		2137	else
		2138	{
		2139	sv_utf8_upgrade (self->incr_text);
		2140
		2141	if (self->incr_pos)
		2142	self->incr_pos = utf8_hop ((U8 *)SvPVX (self->incr_text), self->incr_pos)
		2143	- (U8 *)SvPVX (self->incr_text);
		2144	}
1775		2145
1776	// append data, if any	2146	// append data, if any
1777	if (jsonstr)	2147	if (jsonstr)
1778	{	2148	{
		2149	/* make sure both strings have same encoding */
1779	if (SvUTF8 (jsonstr) && !SvUTF8 (self->incr_text))	2150	if (SvUTF8 (jsonstr) != SvUTF8 (self->incr_text))
		2151	if (SvUTF8 (jsonstr))
		2152	sv_utf8_downgrade (jsonstr, 0);
1780	{	2153	else
1781	/* utf-8-ness differs, need to upgrade */
1782	sv_utf8_upgrade (self->incr_text);	2154	sv_utf8_upgrade (jsonstr);
1783		2155
1784	if (self->incr_pos)	2156	/* and then just blindly append */
1785	self->incr_pos = utf8_hop ((U8 *)SvPVX (self->incr_text), self->incr_pos)
1786	- (U8 *)SvPVX (self->incr_text);
1787	}
1788
1789	{	2157	{
1790	STRLEN len;	2158	STRLEN len;
1791	const char *str = SvPV (jsonstr, len);	2159	const char *str = SvPV (jsonstr, len);
1792	SvGROW (self->incr_text, SvCUR (self->incr_text) + len + 1);	2160	STRLEN cur = SvCUR (self->incr_text);
		2161
		2162	if (SvLEN (self->incr_text) <= cur + len)
		2163	SvGROW (self->incr_text, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
		2164
1793	Move (str, SvEND (self->incr_text), len, char);	2165	Move (str, SvEND (self->incr_text), len, char);
1794	SvCUR_set (self->incr_text, SvCUR (self->incr_text) + len);	2166	SvCUR_set (self->incr_text, SvCUR (self->incr_text) + len);
1795	*SvEND (self->incr_text) = 0; // this should basically be a nop, too, but make sure it's there	2167	*SvEND (self->incr_text) = 0; // this should basically be a nop, too, but make sure it's there
1796	}	2168	}
1797	}	2169	}
1798		2170
1799	if (GIMME_V != G_VOID)	2171	if (GIMME_V != G_VOID)
1800	do	2172	do
1801	{	2173	{
		2174	SV *sv;
1802	STRLEN offset;	2175	char *offset;
1803
1804	incr_parse (self);
1805		2176
1806	if (!INCR_DONE (self))	2177	if (!INCR_DONE (self))
		2178	{
		2179	incr_parse (self);
		2180
		2181	if (self->incr_pos > self->max_size && self->max_size)
		2182	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",
		2183	(unsigned long)self->incr_pos, (unsigned long)self->max_size);
		2184
		2185	if (!INCR_DONE (self))
		2186	{
		2187	// as an optimisation, do not accumulate white space in the incr buffer
		2188	if (self->incr_mode == INCR_M_WS && self->incr_pos)
		2189	{
		2190	self->incr_pos = 0;
		2191	SvCUR_set (self->incr_text, 0);
		2192	}
		2193
1807	break;	2194	break;
		2195	}
		2196	}
1808		2197
1809	XPUSHs (decode_json (self->incr_text, self, &offset));	2198	PUTBACK; sv = decode_json (self->incr_text, self, &offset); SPAGAIN;
		2199	XPUSHs (sv);
1810		2200
1811	sv_chop (self->incr_text, SvPV_nolen (self->incr_text) + offset);
1812	self->incr_pos -= offset;	2201	self->incr_pos -= offset - SvPVX (self->incr_text);
1813	self->incr_nest = 0;	2202	self->incr_nest = 0;
1814	self->incr_mode = 0;	2203	self->incr_mode = 0;
		2204
		2205	sv_chop (self->incr_text, offset);
1815	}	2206	}
1816	while (GIMME_V == G_ARRAY);	2207	while (GIMME_V == G_ARRAY);
1817	}	2208	}
1818		2209
1819	SV incr_text (JSON self)	2210	SV incr_text (JSON self)
1820	ATTRS: lvalue	2211	ATTRS: lvalue
1821	CODE:	2212	CODE:
1822	{	2213	{
1823	if (self->incr_pos)	2214	if (self->incr_pos)
1824	croak ("incr_text can only be called after a successful incr_parse call in scalar context %d", self->incr_pos);//D	2215	croak ("incr_text can not be called when the incremental parser already started parsing");
1825		2216
1826	RETVAL = self->incr_text ? SvREFCNT_inc (self->incr_text) : &PL_sv_undef;	2217	RETVAL = self->incr_text ? SvREFCNT_inc (self->incr_text) : &PL_sv_undef;
1827	}	2218	}
1828	OUTPUT:	2219	OUTPUT:
1829	RETVAL	2220	RETVAL
		2221
		2222	void incr_skip (JSON *self)
		2223	CODE:
		2224	{
		2225	if (self->incr_pos)
		2226	{
		2227	sv_chop (self->incr_text, SvPV_nolen (self->incr_text) + self->incr_pos);
		2228	self->incr_pos = 0;
		2229	self->incr_nest = 0;
		2230	self->incr_mode = 0;
		2231	}
		2232	}
		2233
		2234	void incr_reset (JSON *self)
		2235	CODE:
		2236	{
		2237	SvREFCNT_dec (self->incr_text);
		2238	self->incr_text = 0;
		2239	self->incr_pos = 0;
		2240	self->incr_nest = 0;
		2241	self->incr_mode = 0;
		2242	}
1830		2243
1831	void DESTROY (JSON *self)	2244	void DESTROY (JSON *self)
1832	CODE:	2245	CODE:
1833	SvREFCNT_dec (self->cb_sk_object);	2246	SvREFCNT_dec (self->cb_sk_object);
1834	SvREFCNT_dec (self->cb_object);	2247	SvREFCNT_dec (self->cb_object);
1835	SvREFCNT_dec (self->incr_text);	2248	SvREFCNT_dec (self->incr_text);
1836		2249
1837	PROTOTYPES: ENABLE	2250	PROTOTYPES: ENABLE
1838		2251
1839	void encode_json (SV *scalar)	2252	void encode_json (SV *scalar)
1840	ALIAS:
1841	to_json_ = 0
1842	encode_json = F_UTF8
1843	PPCODE:	2253	PPCODE:
1844	{	2254	{
1845	JSON json = { F_DEFAULT \| ix };	2255	JSON json;
1846	XPUSHs (encode_json (scalar, &json));	2256	json_init (&json);
		2257	json.flags \|= F_UTF8;
		2258	PUTBACK; scalar = encode_json (scalar, &json); SPAGAIN;
		2259	XPUSHs (scalar);
1847	}	2260	}
1848		2261
1849	void decode_json (SV *jsonstr)	2262	void decode_json (SV *jsonstr)
1850	ALIAS:
1851	from_json_ = 0
1852	decode_json = F_UTF8
1853	PPCODE:	2263	PPCODE:
1854	{	2264	{
1855	JSON json = { F_DEFAULT \| ix };	2265	JSON json;
1856	XPUSHs (decode_json (jsonstr, &json, 0));	2266	json_init (&json);
		2267	json.flags \|= F_UTF8;
		2268	PUTBACK; jsonstr = decode_json (jsonstr, &json, 0); SPAGAIN;
		2269	XPUSHs (jsonstr);
1857	}	2270	}
1858		2271
1859

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Comparing JSON-XS/XS.xs (file contents): Revision 1.77 by root, Tue Mar 25 06:37:38 2008 UTC vs. Revision 1.127 by root, Fri Feb 26 21:46:45 2016 UTC

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Comparing JSON-XS/XS.xs (file contents):
Revision 1.77 by root, Tue Mar 25 06:37:38 2008 UTC vs.
Revision 1.127 by root, Fri Feb 26 21:46:45 2016 UTC