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

Comparing JSON-XS/XS.xs (file contents):
Revision 1.81 by root, Wed Mar 26 01:40:43 2008 UTC vs.
Revision 1.130 by root, Sat Nov 26 06:09:29 2016 UTC

…		…
6	#include <string.h>	6	#include <string.h>
7	#include <stdlib.h>	7	#include <stdlib.h>
8	#include <stdio.h>	8	#include <stdio.h>
9	#include <limits.h>	9	#include <limits.h>
10	#include <float.h>	10	#include <float.h>
		11	#include <inttypes.h>
11		12
12	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	13	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)
13	# define snprintf _snprintf // C compilers have this in stdio.h	14	# define snprintf _snprintf // C compilers have this in stdio.h
14	#endif	15	#endif
15		16
16	// some old perls do not have this, try to make it work, no	17	// 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	// guarantees, though. if it breaks, you get to keep the pieces.
18	#ifndef UTF8_MAXBYTES	19	#ifndef UTF8_MAXBYTES
19	# define UTF8_MAXBYTES 13	20	# define UTF8_MAXBYTES 13
20	#endif	21	#endif
21		22
		23	// compatibility with perl <5.18
		24	#ifndef HvNAMELEN_get
		25	# define HvNAMELEN_get(hv) strlen (HvNAME (hv))
		26	#endif
		27	#ifndef HvNAMELEN
		28	# define HvNAMELEN(hv) HvNAMELEN_get (hv)
		29	#endif
		30	#ifndef HvNAMEUTF8
		31	# define HvNAMEUTF8(hv) 0
		32	#endif
		33
		34	// three extra for rounding, sign, and end of string
22	#define IVUV_MAXCHARS (sizeof (UV) * CHAR_BIT * 28 / 93 + 2)	35	#define IVUV_MAXCHARS (sizeof (UV) * CHAR_BIT * 28 / 93 + 3)
23		36
24	#define F_ASCII 0x00000001UL	37	#define F_ASCII 0x00000001UL
25	#define F_LATIN1 0x00000002UL	38	#define F_LATIN1 0x00000002UL
26	#define F_UTF8 0x00000004UL	39	#define F_UTF8 0x00000004UL
27	#define F_INDENT 0x00000008UL	40	#define F_INDENT 0x00000008UL
…		…
31	#define F_ALLOW_NONREF 0x00000100UL	44	#define F_ALLOW_NONREF 0x00000100UL
32	#define F_SHRINK 0x00000200UL	45	#define F_SHRINK 0x00000200UL
33	#define F_ALLOW_BLESSED 0x00000400UL	46	#define F_ALLOW_BLESSED 0x00000400UL
34	#define F_CONV_BLESSED 0x00000800UL	47	#define F_CONV_BLESSED 0x00000800UL
35	#define F_RELAXED 0x00001000UL	48	#define F_RELAXED 0x00001000UL
36		49	#define F_ALLOW_UNKNOWN 0x00002000UL
37	#define F_MAXDEPTH 0xf8000000UL	50	#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	51	#define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing
42		52
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	53	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER
47	#define F_DEFAULT (9UL << S_MAXDEPTH)
48		54
49	#define INIT_SIZE 32 // initial scalar size to be allocated	55	#define INIT_SIZE 32 // initial scalar size to be allocated
50	#define INDENT_STEP 3 // spaces per indentation level	56	#define INDENT_STEP 3 // spaces per indentation level
51		57
52	#define SHORT_STRING_LEN 16384 // special-case strings of up to this size	58	#define SHORT_STRING_LEN 16384 // special-case strings of up to this size
		59
		60	#define DECODE_WANTS_OCTETS(json) ((json)->flags & F_UTF8)
53		61
54	#define SB do {	62	#define SB do {
55	#define SE } while (0)	63	#define SE } while (0)
56		64
57	#if __GNUC__ >= 3	65	#if __GNUC__ >= 3
…		…
67		75
68	#define IN_RANGE_INC(type,val,beg,end) \	76	#define IN_RANGE_INC(type,val,beg,end) \
69	((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \	77	((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \
70	<= (unsigned type)((unsigned type)(end) - (unsigned type)(beg)))	78	<= (unsigned type)((unsigned type)(end) - (unsigned type)(beg)))
71		79
		80	#define ERR_NESTING_EXCEEDED "json text or perl structure exceeds maximum nesting level (max_depth set too low?)"
		81
72	#ifdef USE_ITHREADS	82	#ifdef USE_ITHREADS
73	# define JSON_SLOW 1	83	# define JSON_SLOW 1
74	# define JSON_STASH (json_stash ? json_stash : gv_stashpv ("JSON::XS", 1))	84	# define JSON_STASH (json_stash ? json_stash : gv_stashpv ("JSON::XS", 1))
		85	# define BOOL_STASH (bool_stash ? bool_stash : gv_stashpv ("Types::Serialiser::Boolean", 1))
75	#else	86	#else
76	# define JSON_SLOW 0	87	# define JSON_SLOW 0
77	# define JSON_STASH json_stash	88	# define JSON_STASH json_stash
		89	# define BOOL_STASH bool_stash
78	#endif	90	#endif
79		91
80	static HV json_stash, json_boolean_stash; // JSON::XS::	92	// the amount of HEs to allocate on the stack, when sorting keys
81	static SV json_true, json_false;	93	#define STACK_HES 64
		94
		95	static HV json_stash, bool_stash; // JSON::XS::, Types::Serialiser::Boolean::
		96	static SV bool_true, bool_false, *sv_json;
82		97
83	enum {	98	enum {
84	INCR_M_WS = 0, // initial whitespace skipping, must be 0	99	INCR_M_WS = 0, // initial whitespace skipping, must be 0
85	INCR_M_STR, // inside string	100	INCR_M_STR, // inside string
86	INCR_M_BS, // inside backslash	101	INCR_M_BS, // inside backslash
		102	INCR_M_C0, // inside comment in initial whitespace sequence
		103	INCR_M_C1, // inside comment in other places
87	INCR_M_JSON // outside anything, count nesting	104	INCR_M_JSON // outside anything, count nesting
88	};	105	};
89		106
90	#define INCR_DONE(json) (!(json)->incr_nest && (json)->incr_mode == INCR_M_JSON)	107	#define INCR_DONE(json) ((json)->incr_nest <= 0 && (json)->incr_mode == INCR_M_JSON)
91		108
92	typedef struct {	109	typedef struct {
93	U32 flags;	110	U32 flags;
		111	U32 max_depth;
		112	STRLEN max_size;
		113
94	SV *cb_object;	114	SV *cb_object;
95	HV *cb_sk_object;	115	HV *cb_sk_object;
96		116
97	// for the incremental parser	117	// for the incremental parser
98	SV *incr_text; // the source text so far	118	SV *incr_text; // the source text so far
99	STRLEN incr_pos; // the current offset into the text	119	STRLEN incr_pos; // the current offset into the text
100	int incr_nest; // {[]}-nesting level	120	int incr_nest; // {[]}-nesting level
101	int incr_mode;	121	unsigned char incr_mode;
102	} JSON;	122	} JSON;
		123
		124	INLINE void
		125	json_init (JSON *json)
		126	{
		127	Zero (json, 1, JSON);
		128	json->max_depth = 512;
		129	}
103		130
104	/////////////////////////////////////////////////////////////////////////////	131	/////////////////////////////////////////////////////////////////////////////
105	// utility functions	132	// utility functions
106		133
		134	INLINE SV *
		135	get_bool (const char *name)
		136	{
		137	SV *sv = get_sv (name, 1);
		138
		139	SvREADONLY_on (sv);
		140	SvREADONLY_on (SvRV (sv));
		141
		142	return sv;
		143	}
		144
107	INLINE void	145	INLINE void
108	shrink (SV *sv)	146	shrink (SV *sv)
109	{	147	{
110	sv_utf8_downgrade (sv, 1);	148	sv_utf8_downgrade (sv, 1);
		149
111	if (SvLEN (sv) > SvCUR (sv) + 1)	150	if (SvLEN (sv) > SvCUR (sv) + 1)
112	{	151	{
113	#ifdef SvPV_shrink_to_cur	152	#ifdef SvPV_shrink_to_cur
114	SvPV_shrink_to_cur (sv);	153	SvPV_shrink_to_cur (sv);
115	#elif defined (SvPV_renew)	154	#elif defined (SvPV_renew)
…		…
159	*s++ = 0x80 \| ( ch & 0x3f);	198	*s++ = 0x80 \| ( ch & 0x3f);
160		199
161	return s;	200	return s;
162	}	201	}
163		202
		203	// convert offset pointer to character index, sv must be string
		204	static STRLEN
		205	ptr_to_index (SV sv, char offset)
		206	{
		207	return SvUTF8 (sv)
		208	? utf8_distance (offset, SvPVX (sv))
		209	: offset - SvPVX (sv);
		210	}
		211
		212	/////////////////////////////////////////////////////////////////////////////
		213	// fp hell
		214
		215	// scan a group of digits, and a trailing exponent
		216	static void
		217	json_atof_scan1 (const char s, NV accum, int *expo, int postdp, int maxdepth)
		218	{
		219	UV uaccum = 0;
		220	int eaccum = 0;
		221
		222	// if we recurse too deep, skip all remaining digits
		223	// to avoid a stack overflow attack
		224	if (expect_false (--maxdepth <= 0))
		225	while (((U8)*s - '0') < 10)
		226	++s;
		227
		228	for (;;)
		229	{
		230	U8 dig = (U8)*s - '0';
		231
		232	if (expect_false (dig >= 10))
		233	{
		234	if (dig == (U8)((U8)'.' - (U8)'0'))
		235	{
		236	++s;
		237	json_atof_scan1 (s, accum, expo, 1, maxdepth);
		238	}
		239	else if ((dig \| ' ') == 'e' - '0')
		240	{
		241	int exp2 = 0;
		242	int neg = 0;
		243
		244	++s;
		245
		246	if (*s == '-')
		247	{
		248	++s;
		249	neg = 1;
		250	}
		251	else if (*s == '+')
		252	++s;
		253
		254	while ((dig = (U8)*s - '0') < 10)
		255	exp2 = exp2 * 10 + *s++ - '0';
		256
		257	*expo += neg ? -exp2 : exp2;
		258	}
		259
		260	break;
		261	}
		262
		263	++s;
		264
		265	uaccum = uaccum * 10 + dig;
		266	++eaccum;
		267
		268	// if we have too many digits, then recurse for more
		269	// we actually do this for rather few digits
		270	if (uaccum >= (UV_MAX - 9) / 10)
		271	{
		272	if (postdp) *expo -= eaccum;
		273	json_atof_scan1 (s, accum, expo, postdp, maxdepth);
		274	if (postdp) *expo += eaccum;
		275
		276	break;
		277	}
		278	}
		279
		280	// this relies greatly on the quality of the pow ()
		281	// implementation of the platform, but a good
		282	// implementation is hard to beat.
		283	// (IEEE 754 conformant ones are required to be exact)
		284	if (postdp) *expo -= eaccum;
		285	accum += uaccum Perl_pow (10., *expo);
		286	*expo += eaccum;
		287	}
		288
		289	static NV
		290	json_atof (const char *s)
		291	{
		292	NV accum = 0.;
		293	int expo = 0;
		294	int neg = 0;
		295
		296	if (*s == '-')
		297	{
		298	++s;
		299	neg = 1;
		300	}
		301
		302	// a recursion depth of ten gives us >>500 bits
		303	json_atof_scan1 (s, &accum, &expo, 0, 10);
		304
		305	return neg ? -accum : accum;
		306	}
		307
		308	// target of scalar reference is bool? -1 == nope, 0 == false, 1 == true
		309	static int
		310	ref_bool_type (SV *sv)
		311	{
		312	svtype svt = SvTYPE (sv);
		313
		314	if (svt < SVt_PVAV)
		315	{
		316	STRLEN len = 0;
		317	char *pv = svt ? SvPV (sv, len) : 0;
		318
		319	if (len == 1)
		320	if (*pv == '1')
		321	return 1;
		322	else if (*pv == '0')
		323	return 0;
		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 (SvTYPE (scalar) >= SVt_PVMG)
		339	{
		340	if (SvSTASH (scalar) == bool_stash)
		341	return 1;
		342
		343	if (!SvOBJECT (scalar) && ref_bool_type (scalar) >= 0)
		344	return 1;
		345	}
		346
		347	return 0;
		348	}
		349
164	/////////////////////////////////////////////////////////////////////////////	350	/////////////////////////////////////////////////////////////////////////////
165	// encoder	351	// encoder
166		352
167	// structure used for encoding JSON	353	// structure used for encoding JSON
168	typedef struct	354	typedef struct
…		…
170	char *cur; // SvPVX (sv) + current output position	356	char *cur; // SvPVX (sv) + current output position
171	char *end; // SvEND (sv)	357	char *end; // SvEND (sv)
172	SV *sv; // result scalar	358	SV *sv; // result scalar
173	JSON json;	359	JSON json;
174	U32 indent; // indentation level	360	U32 indent; // indentation level
175	U32 maxdepth; // max. indentation/recursion level
176	UV limit; // escape character values >= this value when encoding	361	UV limit; // escape character values >= this value when encoding
177	} enc_t;	362	} enc_t;
178		363
179	INLINE void	364	INLINE void
180	need (enc_t *enc, STRLEN len)	365	need (enc_t *enc, STRLEN len)
181	{	366	{
182	if (expect_false (enc->cur + len >= enc->end))	367	if (expect_false ((uintptr_t)(enc->end - enc->cur) < len))
183	{	368	{
184	STRLEN cur = enc->cur - SvPVX (enc->sv);	369	STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);
185	SvGROW (enc->sv, cur + len + 1);	370	SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
186	enc->cur = SvPVX (enc->sv) + cur;	371	enc->cur = SvPVX (enc->sv) + cur;
187	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;	372	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;
188	}	373	}
189	}	374	}
190		375
…		…
265	(int)((uch - 0x10000) % 0x400 + 0xDC00));	450	(int)((uch - 0x10000) % 0x400 + 0xDC00));
266	enc->cur += 12;	451	enc->cur += 12;
267	}	452	}
268	else	453	else
269	{	454	{
270	static char hexdigit [16] = "0123456789abcdef";
271	need (enc, len += 5);	455	need (enc, len += 5);
272	*enc->cur++ = '\\';	456	*enc->cur++ = '\\';
273	*enc->cur++ = 'u';	457	*enc->cur++ = 'u';
274	*enc->cur++ = hexdigit [ uch >> 12 ];	458	*enc->cur++ = PL_hexdigit [ uch >> 12 ];
275	*enc->cur++ = hexdigit [(uch >> 8) & 15];	459	*enc->cur++ = PL_hexdigit [(uch >> 8) & 15];
276	*enc->cur++ = hexdigit [(uch >> 4) & 15];	460	*enc->cur++ = PL_hexdigit [(uch >> 4) & 15];
277	*enc->cur++ = hexdigit [(uch >> 0) & 15];	461	*enc->cur++ = PL_hexdigit [(uch >> 0) & 15];
278	}	462	}
279		463
280	str += clen;	464	str += clen;
281	}	465	}
282	else if (enc->json.flags & F_LATIN1)	466	else if (enc->json.flags & F_LATIN1)
…		…
353	static void	537	static void
354	encode_av (enc_t enc, AV av)	538	encode_av (enc_t enc, AV av)
355	{	539	{
356	int i, len = av_len (av);	540	int i, len = av_len (av);
357		541
358	if (enc->indent >= enc->maxdepth)	542	if (enc->indent >= enc->json.max_depth)
359	croak ("data structure too deep (hit recursion limit)");	543	croak (ERR_NESTING_EXCEEDED);
360		544
361	encode_ch (enc, '[');	545	encode_ch (enc, '[');
362		546
363	if (len >= 0)	547	if (len >= 0)
364	{	548	{
365	encode_nl (enc); ++enc->indent;	549	encode_nl (enc); ++enc->indent;
366		550
367	for (i = 0; i <= len; ++i)	551	for (i = 0; i <= len; ++i)
…		…
379	encode_comma (enc);	563	encode_comma (enc);
380	}	564	}
381		565
382	encode_nl (enc); --enc->indent; encode_indent (enc);	566	encode_nl (enc); --enc->indent; encode_indent (enc);
383	}	567	}
384		568
385	encode_ch (enc, ']');	569	encode_ch (enc, ']');
386	}	570	}
387		571
388	static void	572	static void
389	encode_hk (enc_t enc, HE he)	573	encode_hk (enc_t enc, HE he)
…		…
393	if (HeKLEN (he) == HEf_SVKEY)	577	if (HeKLEN (he) == HEf_SVKEY)
394	{	578	{
395	SV *sv = HeSVKEY (he);	579	SV *sv = HeSVKEY (he);
396	STRLEN len;	580	STRLEN len;
397	char *str;	581	char *str;
398		582
399	SvGETMAGIC (sv);	583	SvGETMAGIC (sv);
400	str = SvPV (sv, len);	584	str = SvPV (sv, len);
401		585
402	encode_str (enc, str, len, SvUTF8 (sv));	586	encode_str (enc, str, len, SvUTF8 (sv));
403	}	587	}
…		…
439	static void	623	static void
440	encode_hv (enc_t enc, HV hv)	624	encode_hv (enc_t enc, HV hv)
441	{	625	{
442	HE *he;	626	HE *he;
443		627
444	if (enc->indent >= enc->maxdepth)	628	if (enc->indent >= enc->json.max_depth)
445	croak ("data structure too deep (hit recursion limit)");	629	croak (ERR_NESTING_EXCEEDED);
446		630
447	encode_ch (enc, '{');	631	encode_ch (enc, '{');
448		632
449	// for canonical output we have to sort by keys first	633	// for canonical output we have to sort by keys first
450	// actually, this is mostly due to the stupid so-called	634	// actually, this is mostly due to the stupid so-called
451	// security workaround added somewhere in 5.8.x.	635	// security workaround added somewhere in 5.8.x
452	// that randomises hash orderings	636	// that randomises hash orderings
453	if (enc->json.flags & F_CANONICAL)	637	if (enc->json.flags & F_CANONICAL && !SvRMAGICAL (hv))
454	{	638	{
455	int count = hv_iterinit (hv);	639	int count = hv_iterinit (hv);
456		640
457	if (SvMAGICAL (hv))	641	if (SvMAGICAL (hv))
458	{	642	{
…		…
469	}	653	}
470		654
471	if (count)	655	if (count)
472	{	656	{
473	int i, fast = 1;	657	int i, fast = 1;
474	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	658	HE *hes_stack [STACK_HES];
475	HE *hes = _alloca (count sizeof (HE));	659	HE **hes = hes_stack;
476	#else	660
477	HE *hes [count]; // if your compiler dies here, you need to enable C99 mode	661	// allocate larger arrays on the heap
478	#endif	662	if (count > STACK_HES)
		663	{
		664	SV sv = sv_2mortal (NEWSV (0, count sizeof (*hes)));
		665	hes = (HE **)SvPVX (sv);
		666	}
479		667
480	i = 0;	668	i = 0;
481	while ((he = hv_iternext (hv)))	669	while ((he = hv_iternext (hv)))
482	{	670	{
483	hes [i++] = he;	671	hes [i++] = he;
…		…
552	// encode objects, arrays and special \0=false and \1=true values.	740	// encode objects, arrays and special \0=false and \1=true values.
553	static void	741	static void
554	encode_rv (enc_t enc, SV sv)	742	encode_rv (enc_t enc, SV sv)
555	{	743	{
556	svtype svt;	744	svtype svt;
		745	GV *method;
557		746
558	SvGETMAGIC (sv);	747	SvGETMAGIC (sv);
559	svt = SvTYPE (sv);	748	svt = SvTYPE (sv);
560		749
561	if (expect_false (SvOBJECT (sv)))	750	if (expect_false (SvOBJECT (sv)))
562	{	751	{
563	HV *stash = !JSON_SLOW \|\| json_boolean_stash	752	HV *stash = SvSTASH (sv);
564	? json_boolean_stash
565	: gv_stashpv ("JSON::XS::Boolean", 1);
566		753
567	if (SvSTASH (sv) == stash)	754	if (stash == bool_stash)
568	{	755	{
569	if (SvIV (sv))	756	if (SvIV (sv))
570	encode_str (enc, "true", 4, 0);	757	encode_str (enc, "true", 4, 0);
571	else	758	else
572	encode_str (enc, "false", 5, 0);	759	encode_str (enc, "false", 5, 0);
573	}	760	}
		761	else if ((enc->json.flags & F_ALLOW_TAGS) && (method = gv_fetchmethod_autoload (stash, "FREEZE", 0)))
		762	{
		763	int count;
		764	dSP;
		765
		766	ENTER; SAVETMPS;
		767	SAVESTACK_POS ();
		768	PUSHMARK (SP);
		769	EXTEND (SP, 2);
		770	// we re-bless the reference to get overload and other niceties right
		771	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
		772	PUSHs (sv_json);
		773
		774	PUTBACK;
		775	count = call_sv ((SV *)GvCV (method), G_ARRAY);
		776	SPAGAIN;
		777
		778	// catch this surprisingly common error
		779	if (SvROK (TOPs) && SvRV (TOPs) == sv)
		780	croak ("%s::FREEZE method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
		781
		782	encode_ch (enc, '(');
		783	encode_ch (enc, '"');
		784	encode_str (enc, HvNAME (stash), HvNAMELEN (stash), HvNAMEUTF8 (stash));
		785	encode_ch (enc, '"');
		786	encode_ch (enc, ')');
		787	encode_ch (enc, '[');
		788
		789	while (count)
		790	{
		791	encode_sv (enc, SP[1 - count--]);
		792
		793	if (count)
		794	encode_ch (enc, ',');
		795	}
		796
		797	encode_ch (enc, ']');
		798
		799	FREETMPS; LEAVE;
		800	}
		801	else if ((enc->json.flags & F_CONV_BLESSED) && (method = gv_fetchmethod_autoload (stash, "TO_JSON", 0)))
		802	{
		803	dSP;
		804
		805	ENTER; SAVETMPS;
		806	PUSHMARK (SP);
		807	// we re-bless the reference to get overload and other niceties right
		808	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
		809
		810	// calling with G_SCALAR ensures that we always get a 1 return value
		811	PUTBACK;
		812	call_sv ((SV *)GvCV (method), G_SCALAR);
		813	SPAGAIN;
		814
		815	// catch this surprisingly common error
		816	if (SvROK (TOPs) && SvRV (TOPs) == sv)
		817	croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
		818
		819	sv = POPs;
		820	PUTBACK;
		821
		822	encode_sv (enc, sv);
		823
		824	FREETMPS; LEAVE;
		825	}
		826	else if (enc->json.flags & F_ALLOW_BLESSED)
		827	encode_str (enc, "null", 4, 0);
574	else	828	else
575	{
576	#if 0
577	if (0 && sv_derived_from (rv, "JSON::Literal"))
578	{
579	// not yet
580	}
581	#endif
582	if (enc->json.flags & F_CONV_BLESSED)
583	{
584	// we re-bless the reference to get overload and other niceties right
585	GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 0);
586
587	if (to_json)
588	{
589	dSP;
590
591	ENTER; SAVETMPS; PUSHMARK (SP);
592	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv)));
593
594	// calling with G_SCALAR ensures that we always get a 1 return value
595	PUTBACK;
596	call_sv ((SV *)GvCV (to_json), G_SCALAR);
597	SPAGAIN;
598
599	// catch this surprisingly common error
600	if (SvROK (TOPs) && SvRV (TOPs) == sv)
601	croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
602
603	sv = POPs;
604	PUTBACK;
605
606	encode_sv (enc, sv);
607
608	FREETMPS; LEAVE;
609	}
610	else if (enc->json.flags & F_ALLOW_BLESSED)
611	encode_str (enc, "null", 4, 0);
612	else
613	croak ("encountered object '%s', but neither allow_blessed enabled nor TO_JSON method available on it",
614	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
615	}
616	else if (enc->json.flags & F_ALLOW_BLESSED)
617	encode_str (enc, "null", 4, 0);
618	else
619	croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled",	829	croak ("encountered object '%s', but neither allow_blessed, convert_blessed nor allow_tags settings are enabled (or TO_JSON/FREEZE method missing)",
620	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	830	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
621	}
622	}	831	}
623	else if (svt == SVt_PVHV)	832	else if (svt == SVt_PVHV)
624	encode_hv (enc, (HV *)sv);	833	encode_hv (enc, (HV *)sv);
625	else if (svt == SVt_PVAV)	834	else if (svt == SVt_PVAV)
626	encode_av (enc, (AV *)sv);	835	encode_av (enc, (AV *)sv);
627	else if (svt < SVt_PVAV)	836	else if (svt < SVt_PVAV)
628	{	837	{
629	STRLEN len = 0;	838	int bool_type = ref_bool_type (sv);
630	char *pv = svt ? SvPV (sv, len) : 0;
631		839
632	if (len == 1 && *pv == '1')	840	if (bool_type == 1)
633	encode_str (enc, "true", 4, 0);	841	encode_str (enc, "true", 4, 0);
634	else if (len == 1 && *pv == '0')	842	else if (bool_type == 0)
635	encode_str (enc, "false", 5, 0);	843	encode_str (enc, "false", 5, 0);
		844	else if (enc->json.flags & F_ALLOW_UNKNOWN)
		845	encode_str (enc, "null", 4, 0);
636	else	846	else
637	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",	847	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",
638	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	848	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
639	}	849	}
		850	else if (enc->json.flags & F_ALLOW_UNKNOWN)
		851	encode_str (enc, "null", 4, 0);
640	else	852	else
641	croak ("encountered %s, but JSON can only represent references to arrays or hashes",	853	croak ("encountered %s, but JSON can only represent references to arrays or hashes",
642	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	854	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
643	}	855	}
644		856
…		…
698	}	910	}
699	else	911	else
700	{	912	{
701	// large integer, use the (rather slow) snprintf way.	913	// large integer, use the (rather slow) snprintf way.
702	need (enc, IVUV_MAXCHARS);	914	need (enc, IVUV_MAXCHARS);
703	enc->cur +=	915	enc->cur +=
704	SvIsUV(sv)	916	SvIsUV(sv)
705	? snprintf (enc->cur, IVUV_MAXCHARS, "%"UVuf, (UV)SvUVX (sv))	917	? snprintf (enc->cur, IVUV_MAXCHARS, "%"UVuf, (UV)SvUVX (sv))
706	: snprintf (enc->cur, IVUV_MAXCHARS, "%"IVdf, (IV)SvIVX (sv));	918	: snprintf (enc->cur, IVUV_MAXCHARS, "%"IVdf, (IV)SvIVX (sv));
707	}	919	}
708	}	920	}
709	else if (SvROK (sv))	921	else if (SvROK (sv))
710	encode_rv (enc, SvRV (sv));	922	encode_rv (enc, SvRV (sv));
711	else if (!SvOK (sv))	923	else if (!SvOK (sv) \|\| enc->json.flags & F_ALLOW_UNKNOWN)
712	encode_str (enc, "null", 4, 0);	924	encode_str (enc, "null", 4, 0);
713	else	925	else
714	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",	926	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, check your input data",
715	SvPV_nolen (sv), SvFLAGS (sv));	927	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));
716	}	928	}
717		929
718	static SV *	930	static SV *
719	encode_json (SV scalar, JSON json)	931	encode_json (SV scalar, JSON json)
720	{	932	{
721	enc_t enc;	933	enc_t enc;
722		934
723	if (!(json->flags & F_ALLOW_NONREF) && !SvROK (scalar))	935	if (!(json->flags & F_ALLOW_NONREF) && json_nonref (scalar))
724	croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");	936	croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");
725		937
726	enc.json = *json;	938	enc.json = *json;
727	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	939	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
728	enc.cur = SvPVX (enc.sv);	940	enc.cur = SvPVX (enc.sv);
729	enc.end = SvEND (enc.sv);	941	enc.end = SvEND (enc.sv);
730	enc.indent = 0;	942	enc.indent = 0;
731	enc.maxdepth = DEC_DEPTH (enc.json.flags);
732	enc.limit = enc.json.flags & F_ASCII ? 0x000080UL	943	enc.limit = enc.json.flags & F_ASCII ? 0x000080UL
733	: enc.json.flags & F_LATIN1 ? 0x000100UL	944	: enc.json.flags & F_LATIN1 ? 0x000100UL
734	: 0x110000UL;	945	: 0x110000UL;
735		946
736	SvPOK_only (enc.sv);	947	SvPOK_only (enc.sv);
737	encode_sv (&enc, scalar);	948	encode_sv (&enc, scalar);
		949	encode_nl (&enc);
738		950
739	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));	951	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));
740	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings	952	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings
741		953
742	if (!(enc.json.flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))	954	if (!(enc.json.flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))
…		…
803	if (*dec->cur != ch) \	1015	if (*dec->cur != ch) \
804	ERR (# ch " expected"); \	1016	ERR (# ch " expected"); \
805	++dec->cur; \	1017	++dec->cur; \
806	SE	1018	SE
807		1019
808	#define DEC_INC_DEPTH if (++dec->depth > dec->maxdepth) ERR ("json datastructure exceeds maximum nesting level (set a higher max_depth)")	1020	#define DEC_INC_DEPTH if (++dec->depth > dec->json.max_depth) ERR (ERR_NESTING_EXCEEDED)
809	#define DEC_DEC_DEPTH --dec->depth	1021	#define DEC_DEC_DEPTH --dec->depth
810		1022
811	static SV decode_sv (dec_t dec);	1023	static SV decode_sv (dec_t dec);
812		1024
813	static signed char decode_hexdigit[256];	1025	static signed char decode_hexdigit[256];
…		…
922	else if (expect_true (ch >= 0x20 && ch < 0x80))	1134	else if (expect_true (ch >= 0x20 && ch < 0x80))
923	*cur++ = ch;	1135	*cur++ = ch;
924	else if (ch >= 0x80)	1136	else if (ch >= 0x80)
925	{	1137	{
926	STRLEN clen;	1138	STRLEN clen;
927	UV uch;
928		1139
929	--dec_cur;	1140	--dec_cur;
930		1141
931	uch = decode_utf8 (dec_cur, dec->end - dec_cur, &clen);	1142	decode_utf8 (dec_cur, dec->end - dec_cur, &clen);
932	if (clen == (STRLEN)-1)	1143	if (clen == (STRLEN)-1)
933	ERR ("malformed UTF-8 character in JSON string");	1144	ERR ("malformed UTF-8 character in JSON string");
934		1145
935	do	1146	do
936	cur++ = dec_cur++;	1147	cur++ = dec_cur++;
937	while (--clen);	1148	while (--clen);
938		1149
939	utf8 = 1;	1150	utf8 = 1;
940	}	1151	}
		1152	else if (ch == '\t' && dec->json.flags & F_RELAXED)
		1153	*cur++ = ch;
941	else	1154	else
942	{	1155	{
943	--dec_cur;	1156	--dec_cur;
944		1157
945	if (!ch)	1158	if (!ch)
…		…
953	{	1166	{
954	STRLEN len = cur - buf;	1167	STRLEN len = cur - buf;
955		1168
956	if (sv)	1169	if (sv)
957	{	1170	{
958	SvGROW (sv, SvCUR (sv) + len + 1);	1171	STRLEN cur = SvCUR (sv);
		1172
		1173	if (SvLEN (sv) <= cur + len)
		1174	SvGROW (sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
		1175
959	memcpy (SvPVX (sv) + SvCUR (sv), buf, len);	1176	memcpy (SvPVX (sv) + SvCUR (sv), buf, len);
960	SvCUR_set (sv, SvCUR (sv) + len);	1177	SvCUR_set (sv, SvCUR (sv) + len);
961	}	1178	}
962	else	1179	else
963	sv = newSVpvn (buf, len);	1180	sv = newSVpvn (buf, len);
…		…
1054		1271
1055	// special case the rather common 1..5-digit-int case	1272	// special case the rather common 1..5-digit-int case
1056	if (*start == '-')	1273	if (*start == '-')
1057	switch (len)	1274	switch (len)
1058	{	1275	{
1059	case 2: return newSViv (-( start [1] - '0' * 1));	1276	case 2: return newSViv (-(IV)( start [1] - '0' * 1));
1060	case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11));	1277	case 3: return newSViv (-(IV)( start [1] * 10 + start [2] - '0' * 11));
1061	case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111));	1278	case 4: return newSViv (-(IV)( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111));
1062	case 5: return newSViv (-( start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111));	1279	case 5: return newSViv (-(IV)( start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111));
1063	case 6: return newSViv (-(start [1] * 10000 + start [2] * 1000 + start [3] * 100 + start [4] * 10 + start [5] - '0' * 11111));	1280	case 6: return newSViv (-(IV)(start [1] * 10000 + start [2] * 1000 + start [3] * 100 + start [4] * 10 + start [5] - '0' * 11111));
1064	}	1281	}
1065	else	1282	else
1066	switch (len)	1283	switch (len)
1067	{	1284	{
1068	case 1: return newSViv ( start [0] - '0' * 1);	1285	case 1: return newSViv ( start [0] - '0' * 1);
1069	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);	1286	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);
1070	case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111);	1287	case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111);
1071	case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111);	1288	case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111);
1072	case 5: return newSViv ( start [0] * 10000 + start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 11111);	1289	case 5: return newSViv ( start [0] * 10000 + start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 11111);
1073	}	1290	}
1074		1291
1075	{	1292	{
1076	UV uv;	1293	UV uv;
1077	int numtype = grok_number (start, len, &uv);	1294	int numtype = grok_number (start, len, &uv);
…		…
1086	}	1303	}
1087		1304
1088	len -= *start == '-' ? 1 : 0;	1305	len -= *start == '-' ? 1 : 0;
1089		1306
1090	// does not fit into IV or UV, try NV	1307	// does not fit into IV or UV, try NV
1091	if ((sizeof (NV) == sizeof (double) && DBL_DIG >= len)	1308	if (len <= NV_DIG)
1092	#if defined (LDBL_DIG)
1093	\|\| (sizeof (NV) == sizeof (long double) && LDBL_DIG >= len)
1094	#endif
1095	)
1096	// fits into NV without loss of precision	1309	// fits into NV without loss of precision
1097	return newSVnv (Atof (start));	1310	return newSVnv (json_atof (start));
1098		1311
1099	// everything else fails, convert it to a string	1312	// everything else fails, convert it to a string
1100	return newSVpvn (start, dec->cur - start);	1313	return newSVpvn (start, dec->cur - start);
1101	}	1314	}
1102		1315
1103	// loss of precision here	1316	// loss of precision here
1104	return newSVnv (Atof (start));	1317	return newSVnv (json_atof (start));
1105		1318
1106	fail:	1319	fail:
1107	return 0;	1320	return 0;
1108	}	1321	}
1109		1322
…		…
1133	if (*dec->cur == ']')	1346	if (*dec->cur == ']')
1134	{	1347	{
1135	++dec->cur;	1348	++dec->cur;
1136	break;	1349	break;
1137	}	1350	}
1138		1351
1139	if (*dec->cur != ',')	1352	if (*dec->cur != ',')
1140	ERR (", or ] expected while parsing array");	1353	ERR (", or ] expected while parsing array");
1141		1354
1142	++dec->cur;	1355	++dec->cur;
1143		1356
…		…
1267		1480
1268	hv_iterinit (hv);	1481	hv_iterinit (hv);
1269	he = hv_iternext (hv);	1482	he = hv_iternext (hv);
1270	hv_iterinit (hv);	1483	hv_iterinit (hv);
1271		1484
1272	// the next line creates a mortal sv each time its called.	1485	// the next line creates a mortal sv each time it's called.
1273	// might want to optimise this for common cases.	1486	// might want to optimise this for common cases.
1274	cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0);	1487	cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0);
1275		1488
1276	if (cb)	1489	if (cb)
1277	{	1490	{
1278	dSP;	1491	dSP;
1279	int count;	1492	int count;
1280		1493
1281	ENTER; SAVETMPS; PUSHMARK (SP);	1494	ENTER; SAVETMPS;
		1495	SAVESTACK_POS ();
		1496	PUSHMARK (SP);
1282	XPUSHs (HeVAL (he));	1497	XPUSHs (HeVAL (he));
		1498	sv_2mortal (sv);
1283		1499
1284	PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN;	1500	PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN;
1285		1501
1286	if (count == 1)	1502	if (count == 1)
1287	{	1503	{
1288	sv = newSVsv (POPs);	1504	sv = newSVsv (POPs);
1289	FREETMPS; LEAVE;	1505	FREETMPS; LEAVE;
1290	return sv;	1506	return sv;
1291	}	1507	}
1292		1508
		1509	SvREFCNT_inc (sv);
1293	FREETMPS; LEAVE;	1510	FREETMPS; LEAVE;
1294	}	1511	}
1295	}	1512	}
1296		1513
1297	if (dec->json.cb_object)	1514	if (dec->json.cb_object)
1298	{	1515	{
1299	dSP;	1516	dSP;
1300	int count;	1517	int count;
1301		1518
1302	ENTER; SAVETMPS; PUSHMARK (SP);	1519	ENTER; SAVETMPS;
		1520	SAVESTACK_POS ();
		1521	PUSHMARK (SP);
1303	XPUSHs (sv_2mortal (sv));	1522	XPUSHs (sv_2mortal (sv));
1304		1523
1305	PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN;	1524	PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN;
1306		1525
1307	if (count == 1)	1526	if (count == 1)
…		…
1323	DEC_DEC_DEPTH;	1542	DEC_DEC_DEPTH;
1324	return 0;	1543	return 0;
1325	}	1544	}
1326		1545
1327	static SV *	1546	static SV *
		1547	decode_tag (dec_t *dec)
		1548	{
		1549	SV *tag = 0;
		1550	SV *val = 0;
		1551
		1552	if (!(dec->json.flags & F_ALLOW_TAGS))
		1553	ERR ("malformed JSON string, neither array, object, number, string or atom");
		1554
		1555	++dec->cur;
		1556
		1557	decode_ws (dec);
		1558
		1559	tag = decode_sv (dec);
		1560	if (!tag)
		1561	goto fail;
		1562
		1563	if (!SvPOK (tag))
		1564	ERR ("malformed JSON string, (tag) must be a string");
		1565
		1566	decode_ws (dec);
		1567
		1568	if (*dec->cur != ')')
		1569	ERR (") expected after tag");
		1570
		1571	++dec->cur;
		1572
		1573	decode_ws (dec);
		1574
		1575	val = decode_sv (dec);
		1576	if (!val)
		1577	goto fail;
		1578
		1579	if (!SvROK (val) \|\| SvTYPE (SvRV (val)) != SVt_PVAV)
		1580	ERR ("malformed JSON string, tag value must be an array");
		1581
		1582	{
		1583	AV av = (AV )SvRV (val);
		1584	int i, len = av_len (av) + 1;
		1585	HV *stash = gv_stashsv (tag, 0);
		1586	SV *sv;
		1587
		1588	if (!stash)
		1589	ERR ("cannot decode perl-object (package does not exist)");
		1590
		1591	GV *method = gv_fetchmethod_autoload (stash, "THAW", 0);
		1592
		1593	if (!method)
		1594	ERR ("cannot decode perl-object (package does not have a THAW method)");
		1595
		1596	dSP;
		1597
		1598	ENTER; SAVETMPS;
		1599	PUSHMARK (SP);
		1600	EXTEND (SP, len + 2);
		1601	// we re-bless the reference to get overload and other niceties right
		1602	PUSHs (tag);
		1603	PUSHs (sv_json);
		1604
		1605	for (i = 0; i < len; ++i)
		1606	PUSHs (*av_fetch (av, i, 1));
		1607
		1608	PUTBACK;
		1609	call_sv ((SV *)GvCV (method), G_SCALAR);
		1610	SPAGAIN;
		1611
		1612	SvREFCNT_dec (tag);
		1613	SvREFCNT_dec (val);
		1614	sv = SvREFCNT_inc (POPs);
		1615
		1616	PUTBACK;
		1617
		1618	FREETMPS; LEAVE;
		1619
		1620	return sv;
		1621	}
		1622
		1623	fail:
		1624	SvREFCNT_dec (tag);
		1625	SvREFCNT_dec (val);
		1626	return 0;
		1627	}
		1628
		1629	static SV *
1328	decode_sv (dec_t *dec)	1630	decode_sv (dec_t *dec)
1329	{	1631	{
1330	// the beauty of JSON: you need exactly one character lookahead	1632	// the beauty of JSON: you need exactly one character lookahead
1331	// to parse everything.	1633	// to parse everything.
1332	switch (*dec->cur)	1634	switch (*dec->cur)
1333	{	1635	{
1334	case '"': ++dec->cur; return decode_str (dec);	1636	case '"': ++dec->cur; return decode_str (dec);
1335	case '[': ++dec->cur; return decode_av (dec);	1637	case '[': ++dec->cur; return decode_av (dec);
1336	case '{': ++dec->cur; return decode_hv (dec);	1638	case '{': ++dec->cur; return decode_hv (dec);
		1639	case '(': return decode_tag (dec);
1337		1640
1338	case '-':	1641	case '-':
1339	case '0': case '1': case '2': case '3': case '4':	1642	case '0': case '1': case '2': case '3': case '4':
1340	case '5': case '6': case '7': case '8': case '9':	1643	case '5': case '6': case '7': case '8': case '9':
1341	return decode_num (dec);	1644	return decode_num (dec);
…		…
1343	case 't':	1646	case 't':
1344	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))	1647	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))
1345	{	1648	{
1346	dec->cur += 4;	1649	dec->cur += 4;
1347	#if JSON_SLOW	1650	#if JSON_SLOW
1348	json_true = get_sv ("JSON::XS::true", 1); SvREADONLY_on (json_true);	1651	bool_true = get_bool ("Types::Serialiser::true");
1349	#endif	1652	#endif
1350	return SvREFCNT_inc (json_true);	1653	return newSVsv (bool_true);
1351	}	1654	}
1352	else	1655	else
1353	ERR ("'true' expected");	1656	ERR ("'true' expected");
1354		1657
1355	break;	1658	break;
…		…
1357	case 'f':	1660	case 'f':
1358	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))	1661	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))
1359	{	1662	{
1360	dec->cur += 5;	1663	dec->cur += 5;
1361	#if JSON_SLOW	1664	#if JSON_SLOW
1362	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);	1665	bool_false = get_bool ("Types::Serialiser::false");
1363	#endif	1666	#endif
1364	return SvREFCNT_inc (json_false);	1667	return newSVsv (bool_false);
1365	}	1668	}
1366	else	1669	else
1367	ERR ("'false' expected");	1670	ERR ("'false' expected");
1368		1671
1369	break;	1672	break;
…		…
1378	ERR ("'null' expected");	1681	ERR ("'null' expected");
1379		1682
1380	break;	1683	break;
1381		1684
1382	default:	1685	default:
1383	ERR ("malformed JSON string, neither array, object, number, string or atom");	1686	ERR ("malformed JSON string, neither tag, array, object, number, string or atom");
1384	break;	1687	break;
1385	}	1688	}
1386		1689
1387	fail:	1690	fail:
1388	return 0;	1691	return 0;
…		…
1390		1693
1391	static SV *	1694	static SV *
1392	decode_json (SV string, JSON json, STRLEN *offset_return)	1695	decode_json (SV string, JSON json, STRLEN *offset_return)
1393	{	1696	{
1394	dec_t dec;	1697	dec_t dec;
1395	STRLEN offset;
1396	SV *sv;	1698	SV *sv;
1397		1699
		1700	/* work around bugs in 5.10 where manipulating magic values
		1701	* makes perl ignore the magic in subsequent accesses.
		1702	* also make a copy of non-PV values, to get them into a clean
		1703	* state (SvPV should do that, but it's buggy, see below).
		1704	*
		1705	* SvIsCOW_shared_hash works around a bug in perl (possibly 5.16),
		1706	* as reported by Reini Urban.
		1707	*/
1398	SvGETMAGIC (string);	1708	/SvGETMAGIC (string);/
		1709	if (SvMAGICAL (string) \|\| !SvPOK (string) \|\| SvIsCOW_shared_hash (string))
		1710	string = sv_2mortal (newSVsv (string));
		1711
1399	SvUPGRADE (string, SVt_PV);	1712	SvUPGRADE (string, SVt_PV);
1400		1713
1401	if (json->flags & F_MAXSIZE && SvCUR (string) > DEC_SIZE (json->flags))	1714	/* work around a bug in perl 5.10, which causes SvCUR to fail an
		1715	* assertion with -DDEBUGGING, although SvCUR is documented to
		1716	* return the xpv_cur field which certainly exists after upgrading.
		1717	* according to nicholas clark, calling SvPOK fixes this.
		1718	* But it doesn't fix it, so try another workaround, call SvPV_nolen
		1719	* and hope for the best.
		1720	* Damnit, SvPV_nolen still trips over yet another assertion. This
		1721	* assertion business is seriously broken, try yet another workaround
		1722	* for the broken -DDEBUGGING.
		1723	*/
		1724	{
		1725	#ifdef DEBUGGING
		1726	STRLEN offset = SvOK (string) ? sv_len (string) : 0;
		1727	#else
		1728	STRLEN offset = SvCUR (string);
		1729	#endif
		1730
		1731	if (offset > json->max_size && json->max_size)
1402	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",	1732	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",
1403	(unsigned long)SvCUR (string), (unsigned long)DEC_SIZE (json->flags));	1733	(unsigned long)SvCUR (string), (unsigned long)json->max_size);
		1734	}
1404		1735
1405	if (json->flags & F_UTF8)	1736	if (DECODE_WANTS_OCTETS (json))
1406	sv_utf8_downgrade (string, 0);	1737	sv_utf8_downgrade (string, 0);
1407	else	1738	else
1408	sv_utf8_upgrade (string);	1739	sv_utf8_upgrade (string);
1409		1740
1410	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP	1741	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP
1411		1742
1412	dec.json = *json;	1743	dec.json = *json;
1413	dec.cur = SvPVX (string);	1744	dec.cur = SvPVX (string);
1414	dec.end = SvEND (string);	1745	dec.end = SvEND (string);
1415	dec.err = 0;	1746	dec.err = 0;
1416	dec.depth = 0;	1747	dec.depth = 0;
1417	dec.maxdepth = DEC_DEPTH (dec.json.flags);
1418		1748
1419	if (dec.json.cb_object \|\| dec.json.cb_sk_object)	1749	if (dec.json.cb_object \|\| dec.json.cb_sk_object)
1420	dec.json.flags \|= F_HOOK;	1750	dec.json.flags \|= F_HOOK;
1421		1751
1422	*dec.end = 0; // this should basically be a nop, too, but make sure it's there	1752	*dec.end = 0; // this should basically be a nop, too, but make sure it's there
1423		1753
1424	decode_ws (&dec);	1754	decode_ws (&dec);
1425	sv = decode_sv (&dec);	1755	sv = decode_sv (&dec);
1426		1756
1427	if (!(offset_return \|\| !sv))	1757	if (offset_return)
		1758	*offset_return = dec.cur - SvPVX (string);
		1759	else if (sv)
1428	{	1760	{
1429	// check for trailing garbage	1761	// check for trailing garbage
1430	decode_ws (&dec);	1762	decode_ws (&dec);
1431		1763
1432	if (*dec.cur)	1764	if (*dec.cur)
1433	{	1765	{
1434	dec.err = "garbage after JSON object";	1766	dec.err = "garbage after JSON object";
1435	SvREFCNT_dec (sv);	1767	SvREFCNT_dec (sv);
1436	sv = 0;	1768	sv = 0;
1437	}	1769	}
1438	}
1439
1440	if (offset_return \|\| !sv)
1441	{
1442	offset = dec.json.flags & F_UTF8
1443	? dec.cur - SvPVX (string)
1444	: utf8_distance (dec.cur, SvPVX (string));
1445
1446	if (offset_return)
1447	*offset_return = offset;
1448	}	1770	}
1449		1771
1450	if (!sv)	1772	if (!sv)
1451	{	1773	{
1452	SV *uni = sv_newmortal ();	1774	SV *uni = sv_newmortal ();
…		…
1458	SAVEVPTR (PL_curcop);	1780	SAVEVPTR (PL_curcop);
1459	PL_curcop = &cop;	1781	PL_curcop = &cop;
1460	pv_uni_display (uni, dec.cur, dec.end - dec.cur, 20, UNI_DISPLAY_QQ);	1782	pv_uni_display (uni, dec.cur, dec.end - dec.cur, 20, UNI_DISPLAY_QQ);
1461	LEAVE;	1783	LEAVE;
1462		1784
1463	croak ("%s, at character offset %d [\"%s\"]",	1785	croak ("%s, at character offset %d (before \"%s\")",
1464	dec.err,	1786	dec.err,
1465	(int)offset,	1787	(int)ptr_to_index (string, dec.cur),
1466	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");	1788	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");
1467	}	1789	}
1468		1790
1469	sv = sv_2mortal (sv);	1791	sv = sv_2mortal (sv);
1470		1792
1471	if (!(dec.json.flags & F_ALLOW_NONREF) && !SvROK (sv))	1793	if (!(dec.json.flags & F_ALLOW_NONREF) && json_nonref (sv))
1472	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");	1794	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");
1473		1795
1474	return sv;	1796	return sv;
1475	}	1797	}
1476		1798
…		…
1479		1801
1480	static void	1802	static void
1481	incr_parse (JSON *self)	1803	incr_parse (JSON *self)
1482	{	1804	{
1483	const char *p = SvPVX (self->incr_text) + self->incr_pos;	1805	const char *p = SvPVX (self->incr_text) + self->incr_pos;
		1806
		1807	// the state machine here is a bit convoluted and could be simplified a lot
		1808	// but this would make it slower, so...
1484		1809
1485	for (;;)	1810	for (;;)
1486	{	1811	{
1487	//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	1812	//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
1488	switch (self->incr_mode)	1813	switch (self->incr_mode)
1489	{	1814	{
1490	// only used for intiial whitespace skipping	1815	// only used for initial whitespace skipping
1491	case INCR_M_WS:	1816	case INCR_M_WS:
1492	for (;;)	1817	for (;;)
1493	{	1818	{
1494	if (*p > 0x20)	1819	if (*p > 0x20)
1495	{	1820	{
		1821	if (*p == '#')
		1822	{
		1823	self->incr_mode = INCR_M_C0;
		1824	goto incr_m_c;
		1825	}
		1826	else
		1827	{
1496	self->incr_mode = INCR_M_JSON;	1828	self->incr_mode = INCR_M_JSON;
1497	goto incr_m_json;	1829	goto incr_m_json;
		1830	}
1498	}	1831	}
1499	else if (!*p)	1832	else if (!*p)
1500	goto interrupt;	1833	goto interrupt;
1501		1834
1502	++p;	1835	++p;
…		…
1508	goto interrupt;	1841	goto interrupt;
1509		1842
1510	++p;	1843	++p;
1511	self->incr_mode = INCR_M_STR;	1844	self->incr_mode = INCR_M_STR;
1512	goto incr_m_str;	1845	goto incr_m_str;
		1846
		1847	// inside #-style comments
		1848	case INCR_M_C0:
		1849	case INCR_M_C1:
		1850	incr_m_c:
		1851	for (;;)
		1852	{
		1853	if (*p == '\n')
		1854	{
		1855	self->incr_mode = self->incr_mode == INCR_M_C0 ? INCR_M_WS : INCR_M_JSON;
		1856	break;
		1857	}
		1858	else if (!*p)
		1859	goto interrupt;
		1860
		1861	++p;
		1862	}
		1863
		1864	break;
1513		1865
1514	// inside a string	1866	// inside a string
1515	case INCR_M_STR:	1867	case INCR_M_STR:
1516	incr_m_str:	1868	incr_m_str:
1517	for (;;)	1869	for (;;)
…		…
1568	self->incr_mode = INCR_M_STR;	1920	self->incr_mode = INCR_M_STR;
1569	goto incr_m_str;	1921	goto incr_m_str;
1570		1922
1571	case '[':	1923	case '[':
1572	case '{':	1924	case '{':
		1925	case '(':
1573	++self->incr_nest;	1926	if (++self->incr_nest > self->max_depth)
		1927	croak (ERR_NESTING_EXCEEDED);
1574	break;	1928	break;
1575		1929
1576	case ']':	1930	case ']':
1577	case '}':	1931	case '}':
1578	if (!--self->incr_nest)	1932	if (--self->incr_nest <= 0)
1579	goto interrupt;	1933	goto interrupt;
		1934	break;
		1935
		1936	case ')':
		1937	--self->incr_nest;
		1938	break;
		1939
		1940	case '#':
		1941	self->incr_mode = INCR_M_C1;
		1942	goto incr_m_c;
1580	}	1943	}
1581	}	1944	}
1582	}	1945	}
1583		1946
1584	modechange:	1947	modechange:
1585	;	1948	;
1586	}	1949	}
1587		1950
1588	interrupt:	1951	interrupt:
1589	self->incr_pos = p - SvPVX (self->incr_text);	1952	self->incr_pos = p - SvPVX (self->incr_text);
		1953	//printf ("interrupt<%.*s>\n", self->incr_pos, SvPVX(self->incr_text));//D
1590	//printf ("return pos %d mode %d nest %d\n", self->incr_pos, self->incr_mode, self->incr_nest);//D	1954	//printf ("return pos %d mode %d nest %d\n", self->incr_pos, self->incr_mode, self->incr_nest);//D
1591	}	1955	}
1592		1956
1593	/////////////////////////////////////////////////////////////////////////////	1957	/////////////////////////////////////////////////////////////////////////////
1594	// XS interface functions	1958	// XS interface functions
…		…
1604	i >= '0' && i <= '9' ? i - '0'	1968	i >= '0' && i <= '9' ? i - '0'
1605	: i >= 'a' && i <= 'f' ? i - 'a' + 10	1969	: i >= 'a' && i <= 'f' ? i - 'a' + 10
1606	: i >= 'A' && i <= 'F' ? i - 'A' + 10	1970	: i >= 'A' && i <= 'F' ? i - 'A' + 10
1607	: -1;	1971	: -1;
1608		1972
1609	json_stash = gv_stashpv ("JSON::XS" , 1);	1973	json_stash = gv_stashpv ("JSON::XS" , 1);
1610	json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1);	1974	bool_stash = gv_stashpv ("Types::Serialiser::Boolean", 1);
		1975	bool_true = get_bool ("Types::Serialiser::true");
		1976	bool_false = get_bool ("Types::Serialiser::false");
1611		1977
1612	json_true = get_sv ("JSON::XS::true" , 1); SvREADONLY_on (json_true );	1978	sv_json = newSVpv ("JSON", 0);
1613	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);	1979	SvREADONLY_on (sv_json);
		1980
		1981	CvNODEBUG_on (get_cv ("JSON::XS::incr_text", 0)); /* the debugger completely breaks lvalue subs */
1614	}	1982	}
1615		1983
1616	PROTOTYPES: DISABLE	1984	PROTOTYPES: DISABLE
1617		1985
1618	void CLONE (...)	1986	void CLONE (...)
1619	CODE:	1987	CODE:
1620	json_stash = 0;	1988	json_stash = 0;
1621	json_boolean_stash = 0;	1989	bool_stash = 0;
1622		1990
1623	void new (char *klass)	1991	void new (char *klass)
1624	PPCODE:	1992	PPCODE:
1625	{	1993	{
1626	SV *pv = NEWSV (0, sizeof (JSON));	1994	SV *pv = NEWSV (0, sizeof (JSON));
1627	SvPOK_only (pv);	1995	SvPOK_only (pv);
1628	Zero (SvPVX (pv), 1, JSON);	1996	json_init ((JSON *)SvPVX (pv));
1629	((JSON *)SvPVX (pv))->flags = F_DEFAULT;
1630	XPUSHs (sv_2mortal (sv_bless (	1997	XPUSHs (sv_2mortal (sv_bless (
1631	newRV_noinc (pv),	1998	newRV_noinc (pv),
1632	strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1)	1999	strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1)
1633	)));	2000	)));
1634	}	2001	}
…		…
1646	allow_nonref = F_ALLOW_NONREF	2013	allow_nonref = F_ALLOW_NONREF
1647	shrink = F_SHRINK	2014	shrink = F_SHRINK
1648	allow_blessed = F_ALLOW_BLESSED	2015	allow_blessed = F_ALLOW_BLESSED
1649	convert_blessed = F_CONV_BLESSED	2016	convert_blessed = F_CONV_BLESSED
1650	relaxed = F_RELAXED	2017	relaxed = F_RELAXED
		2018	allow_unknown = F_ALLOW_UNKNOWN
		2019	allow_tags = F_ALLOW_TAGS
1651	PPCODE:	2020	PPCODE:
1652	{	2021	{
1653	if (enable)	2022	if (enable)
1654	self->flags \|= ix;	2023	self->flags \|= ix;
1655	else	2024	else
…		…
1670	get_allow_nonref = F_ALLOW_NONREF	2039	get_allow_nonref = F_ALLOW_NONREF
1671	get_shrink = F_SHRINK	2040	get_shrink = F_SHRINK
1672	get_allow_blessed = F_ALLOW_BLESSED	2041	get_allow_blessed = F_ALLOW_BLESSED
1673	get_convert_blessed = F_CONV_BLESSED	2042	get_convert_blessed = F_CONV_BLESSED
1674	get_relaxed = F_RELAXED	2043	get_relaxed = F_RELAXED
		2044	get_allow_unknown = F_ALLOW_UNKNOWN
		2045	get_allow_tags = F_ALLOW_TAGS
1675	PPCODE:	2046	PPCODE:
1676	XPUSHs (boolSV (self->flags & ix));	2047	XPUSHs (boolSV (self->flags & ix));
1677		2048
1678	void max_depth (JSON *self, UV max_depth = 0x80000000UL)	2049	void max_depth (JSON *self, U32 max_depth = 0x80000000UL)
1679	PPCODE:	2050	PPCODE:
1680	{	2051	self->max_depth = max_depth;
1681	UV log2 = 0;
1682
1683	if (max_depth > 0x80000000UL) max_depth = 0x80000000UL;
1684
1685	while ((1UL << log2) < max_depth)
1686	++log2;
1687
1688	self->flags = self->flags & ~F_MAXDEPTH \| (log2 << S_MAXDEPTH);
1689
1690	XPUSHs (ST (0));	2052	XPUSHs (ST (0));
1691	}
1692		2053
1693	U32 get_max_depth (JSON *self)	2054	U32 get_max_depth (JSON *self)
1694	CODE:	2055	CODE:
1695	RETVAL = DEC_DEPTH (self->flags);	2056	RETVAL = self->max_depth;
1696	OUTPUT:	2057	OUTPUT:
1697	RETVAL	2058	RETVAL
1698		2059
1699	void max_size (JSON *self, UV max_size = 0)	2060	void max_size (JSON *self, U32 max_size = 0)
1700	PPCODE:	2061	PPCODE:
1701	{	2062	self->max_size = max_size;
1702	UV log2 = 0;
1703
1704	if (max_size > 0x80000000UL) max_size = 0x80000000UL;
1705	if (max_size == 1) max_size = 2;
1706
1707	while ((1UL << log2) < max_size)
1708	++log2;
1709
1710	self->flags = self->flags & ~F_MAXSIZE \| (log2 << S_MAXSIZE);
1711
1712	XPUSHs (ST (0));	2063	XPUSHs (ST (0));
1713	}
1714		2064
1715	int get_max_size (JSON *self)	2065	int get_max_size (JSON *self)
1716	CODE:	2066	CODE:
1717	RETVAL = DEC_SIZE (self->flags);	2067	RETVAL = self->max_size;
1718	OUTPUT:	2068	OUTPUT:
1719	RETVAL	2069	RETVAL
1720		2070
1721	void filter_json_object (JSON self, SV cb = &PL_sv_undef)	2071	void filter_json_object (JSON self, SV cb = &PL_sv_undef)
1722	PPCODE:	2072	PPCODE:
…		…
1728	}	2078	}
1729		2079
1730	void filter_json_single_key_object (JSON self, SV key, SV *cb = &PL_sv_undef)	2080	void filter_json_single_key_object (JSON self, SV key, SV *cb = &PL_sv_undef)
1731	PPCODE:	2081	PPCODE:
1732	{	2082	{
1733	if (!self->cb_sk_object)	2083	if (!self->cb_sk_object)
1734	self->cb_sk_object = newHV ();	2084	self->cb_sk_object = newHV ();
1735		2085
1736	if (SvOK (cb))	2086	if (SvOK (cb))
1737	hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0);	2087	hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0);
1738	else	2088	else
…		…
1749	XPUSHs (ST (0));	2099	XPUSHs (ST (0));
1750	}	2100	}
1751		2101
1752	void encode (JSON self, SV scalar)	2102	void encode (JSON self, SV scalar)
1753	PPCODE:	2103	PPCODE:
1754	XPUSHs (encode_json (scalar, self));	2104	PUTBACK; scalar = encode_json (scalar, self); SPAGAIN;
		2105	XPUSHs (scalar);
1755		2106
1756	void decode (JSON self, SV jsonstr)	2107	void decode (JSON self, SV jsonstr)
1757	PPCODE:	2108	PPCODE:
1758	XPUSHs (decode_json (jsonstr, self, 0));	2109	PUTBACK; jsonstr = decode_json (jsonstr, self, 0); SPAGAIN;
		2110	XPUSHs (jsonstr);
1759		2111
1760	void decode_prefix (JSON self, SV jsonstr)	2112	void decode_prefix (JSON self, SV jsonstr)
1761	PPCODE:	2113	PPCODE:
1762	{	2114	{
		2115	SV *sv;
1763	STRLEN offset;	2116	STRLEN offset;
		2117	PUTBACK; sv = decode_json (jsonstr, self, &offset); SPAGAIN;
1764	EXTEND (SP, 2);	2118	EXTEND (SP, 2);
1765	PUSHs (decode_json (jsonstr, self, &offset));	2119	PUSHs (sv);
1766	PUSHs (sv_2mortal (newSVuv (offset)));	2120	PUSHs (sv_2mortal (newSVuv (ptr_to_index (jsonstr, SvPV_nolen (jsonstr) + offset))));
1767	}	2121	}
1768		2122
1769	void incr_parse (JSON self, SV jsonstr = 0)	2123	void incr_parse (JSON self, SV jsonstr = 0)
1770	PPCODE:	2124	PPCODE:
1771	{	2125	{
1772	if (!self->incr_text)	2126	if (!self->incr_text)
1773	self->incr_text = newSVpvn ("", 0);	2127	self->incr_text = newSVpvn ("", 0);
		2128
		2129	/* if utf8-ness doesn't match the decoder, need to upgrade/downgrade */
		2130	if (!DECODE_WANTS_OCTETS (self) == !SvUTF8 (self->incr_text))
		2131	if (DECODE_WANTS_OCTETS (self))
		2132	{
		2133	if (self->incr_pos)
		2134	self->incr_pos = utf8_length ((U8 *)SvPVX (self->incr_text),
		2135	(U8 *)SvPVX (self->incr_text) + self->incr_pos);
		2136
		2137	sv_utf8_downgrade (self->incr_text, 0);
		2138	}
		2139	else
		2140	{
		2141	sv_utf8_upgrade (self->incr_text);
		2142
		2143	if (self->incr_pos)
		2144	self->incr_pos = utf8_hop ((U8 *)SvPVX (self->incr_text), self->incr_pos)
		2145	- (U8 *)SvPVX (self->incr_text);
		2146	}
1774		2147
1775	// append data, if any	2148	// append data, if any
1776	if (jsonstr)	2149	if (jsonstr)
1777	{	2150	{
		2151	/* make sure both strings have same encoding */
1778	if (SvUTF8 (jsonstr) && !SvUTF8 (self->incr_text))	2152	if (SvUTF8 (jsonstr) != SvUTF8 (self->incr_text))
		2153	if (SvUTF8 (jsonstr))
		2154	sv_utf8_downgrade (jsonstr, 0);
1779	{	2155	else
1780	/* utf-8-ness differs, need to upgrade */
1781	sv_utf8_upgrade (self->incr_text);	2156	sv_utf8_upgrade (jsonstr);
1782		2157
1783	if (self->incr_pos)	2158	/* and then just blindly append */
1784	self->incr_pos = utf8_hop ((U8 *)SvPVX (self->incr_text), self->incr_pos)
1785	- (U8 *)SvPVX (self->incr_text);
1786	}
1787
1788	{	2159	{
1789	STRLEN len;	2160	STRLEN len;
1790	const char *str = SvPV (jsonstr, len);	2161	const char *str = SvPV (jsonstr, len);
1791	SvGROW (self->incr_text, SvCUR (self->incr_text) + len + 1);	2162	STRLEN cur = SvCUR (self->incr_text);
		2163
		2164	if (SvLEN (self->incr_text) <= cur + len)
		2165	SvGROW (self->incr_text, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
		2166
1792	Move (str, SvEND (self->incr_text), len, char);	2167	Move (str, SvEND (self->incr_text), len, char);
1793	SvCUR_set (self->incr_text, SvCUR (self->incr_text) + len);	2168	SvCUR_set (self->incr_text, SvCUR (self->incr_text) + len);
1794	*SvEND (self->incr_text) = 0; // this should basically be a nop, too, but make sure it's there	2169	*SvEND (self->incr_text) = 0; // this should basically be a nop, too, but make sure it's there
1795	}	2170	}
1796	}	2171	}
1797		2172
1798	if (GIMME_V != G_VOID)	2173	if (GIMME_V != G_VOID)
1799	do	2174	do
1800	{	2175	{
		2176	SV *sv;
1801	STRLEN offset;	2177	STRLEN offset;
1802		2178
1803	incr_parse (self);
1804
1805	if (!INCR_DONE (self))	2179	if (!INCR_DONE (self))
		2180	{
		2181	incr_parse (self);
		2182
		2183	if (self->incr_pos > self->max_size && self->max_size)
		2184	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",
		2185	(unsigned long)self->incr_pos, (unsigned long)self->max_size);
		2186
		2187	if (!INCR_DONE (self))
		2188	{
		2189	// as an optimisation, do not accumulate white space in the incr buffer
		2190	if (self->incr_mode == INCR_M_WS && self->incr_pos)
		2191	{
		2192	self->incr_pos = 0;
		2193	SvCUR_set (self->incr_text, 0);
		2194	}
		2195
1806	break;	2196	break;
		2197	}
		2198	}
1807		2199
1808	XPUSHs (decode_json (self->incr_text, self, &offset));	2200	PUTBACK; sv = decode_json (self->incr_text, self, &offset); SPAGAIN;
		2201	XPUSHs (sv);
1809		2202
1810	sv_chop (self->incr_text, SvPV_nolen (self->incr_text) + offset);
1811	self->incr_pos -= offset;	2203	self->incr_pos -= offset;
1812	self->incr_nest = 0;	2204	self->incr_nest = 0;
1813	self->incr_mode = 0;	2205	self->incr_mode = 0;
		2206
		2207	sv_chop (self->incr_text, SvPVX (self->incr_text) + offset);
1814	}	2208	}
1815	while (GIMME_V == G_ARRAY);	2209	while (GIMME_V == G_ARRAY);
1816	}	2210	}
1817		2211
1818	SV incr_text (JSON self)	2212	SV incr_text (JSON self)
1819	ATTRS: lvalue	2213	ATTRS: lvalue
1820	CODE:	2214	CODE:
1821	{	2215	{
1822	if (self->incr_pos)	2216	if (self->incr_pos)
1823	croak ("incr_text can only be called after a successful incr_parse call in scalar context");	2217	croak ("incr_text can not be called when the incremental parser already started parsing");
1824		2218
1825	RETVAL = self->incr_text ? SvREFCNT_inc (self->incr_text) : &PL_sv_undef;	2219	RETVAL = self->incr_text ? SvREFCNT_inc (self->incr_text) : &PL_sv_undef;
1826	}	2220	}
1827	OUTPUT:	2221	OUTPUT:
1828	RETVAL	2222	RETVAL
…		…
1837	self->incr_nest = 0;	2231	self->incr_nest = 0;
1838	self->incr_mode = 0;	2232	self->incr_mode = 0;
1839	}	2233	}
1840	}	2234	}
1841		2235
		2236	void incr_reset (JSON *self)
		2237	CODE:
		2238	{
		2239	SvREFCNT_dec (self->incr_text);
		2240	self->incr_text = 0;
		2241	self->incr_pos = 0;
		2242	self->incr_nest = 0;
		2243	self->incr_mode = 0;
		2244	}
		2245
1842	void DESTROY (JSON *self)	2246	void DESTROY (JSON *self)
1843	CODE:	2247	CODE:
1844	SvREFCNT_dec (self->cb_sk_object);	2248	SvREFCNT_dec (self->cb_sk_object);
1845	SvREFCNT_dec (self->cb_object);	2249	SvREFCNT_dec (self->cb_object);
1846	SvREFCNT_dec (self->incr_text);	2250	SvREFCNT_dec (self->incr_text);
1847		2251
1848	PROTOTYPES: ENABLE	2252	PROTOTYPES: ENABLE
1849		2253
1850	void encode_json (SV *scalar)	2254	void encode_json (SV *scalar)
1851	ALIAS:
1852	to_json_ = 0
1853	encode_json = F_UTF8
1854	PPCODE:	2255	PPCODE:
1855	{	2256	{
1856	JSON json = { F_DEFAULT \| ix };	2257	JSON json;
1857	XPUSHs (encode_json (scalar, &json));	2258	json_init (&json);
		2259	json.flags \|= F_UTF8;
		2260	PUTBACK; scalar = encode_json (scalar, &json); SPAGAIN;
		2261	XPUSHs (scalar);
1858	}	2262	}
1859		2263
1860	void decode_json (SV *jsonstr)	2264	void decode_json (SV *jsonstr)
1861	ALIAS:
1862	from_json_ = 0
1863	decode_json = F_UTF8
1864	PPCODE:	2265	PPCODE:
1865	{	2266	{
1866	JSON json = { F_DEFAULT \| ix };	2267	JSON json;
1867	XPUSHs (decode_json (jsonstr, &json, 0));	2268	json_init (&json);
		2269	json.flags \|= F_UTF8;
		2270	PUTBACK; jsonstr = decode_json (jsonstr, &json, 0); SPAGAIN;
		2271	XPUSHs (jsonstr);
1868	}	2272	}
1869		2273
1870

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Comparing JSON-XS/XS.xs (file contents): Revision 1.81 by root, Wed Mar 26 01:40:43 2008 UTC vs. Revision 1.130 by root, Sat Nov 26 06:09:29 2016 UTC

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Comparing JSON-XS/XS.xs (file contents):
Revision 1.81 by root, Wed Mar 26 01:40:43 2008 UTC vs.
Revision 1.130 by root, Sat Nov 26 06:09:29 2016 UTC