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

Comparing JSON-XS/XS.xs (file contents):
Revision 1.74 by root, Wed Mar 19 15:17:53 2008 UTC vs.
Revision 1.125 by root, Sun Feb 21 15:37:53 2016 UTC

…		…
4		4
5	#include <assert.h>	5	#include <assert.h>
6	#include <string.h>	6	#include <string.h>
7	#include <stdlib.h>	7	#include <stdlib.h>
8	#include <stdio.h>	8	#include <stdio.h>
		9	#include <limits.h>
9	#include <float.h>	10	#include <float.h>
10		11
11	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	12	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)
12	# define snprintf _snprintf // C compilers have this in stdio.h	13	# define snprintf _snprintf // C compilers have this in stdio.h
13	#endif	14	#endif
14		15
15	// some old perls do not have this, try to make it work, no	16	// some old perls do not have this, try to make it work, no
16	// guarentees, though. if it breaks, you get to keep the pieces.	17	// guarantees, though. if it breaks, you get to keep the pieces.
17	#ifndef UTF8_MAXBYTES	18	#ifndef UTF8_MAXBYTES
18	# define UTF8_MAXBYTES 13	19	# define UTF8_MAXBYTES 13
19	#endif	20	#endif
		21
		22	// 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
		34	#define IVUV_MAXCHARS (sizeof (UV) * CHAR_BIT * 28 / 93 + 3)
20		35
21	#define F_ASCII 0x00000001UL	36	#define F_ASCII 0x00000001UL
22	#define F_LATIN1 0x00000002UL	37	#define F_LATIN1 0x00000002UL
23	#define F_UTF8 0x00000004UL	38	#define F_UTF8 0x00000004UL
24	#define F_INDENT 0x00000008UL	39	#define F_INDENT 0x00000008UL
…		…
28	#define F_ALLOW_NONREF 0x00000100UL	43	#define F_ALLOW_NONREF 0x00000100UL
29	#define F_SHRINK 0x00000200UL	44	#define F_SHRINK 0x00000200UL
30	#define F_ALLOW_BLESSED 0x00000400UL	45	#define F_ALLOW_BLESSED 0x00000400UL
31	#define F_CONV_BLESSED 0x00000800UL	46	#define F_CONV_BLESSED 0x00000800UL
32	#define F_RELAXED 0x00001000UL	47	#define F_RELAXED 0x00001000UL
33		48	#define F_ALLOW_UNKNOWN 0x00002000UL
34	#define F_MAXDEPTH 0xf8000000UL	49	#define F_ALLOW_TAGS 0x00004000UL
35	#define S_MAXDEPTH 27
36	#define F_MAXSIZE 0x01f00000UL
37	#define S_MAXSIZE 20
38	#define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing	50	#define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing
39		51
40	#define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH))
41	#define DEC_SIZE(flags) (1UL << ((flags & F_MAXSIZE ) >> S_MAXSIZE ))
42
43	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER	52	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER
44	#define F_DEFAULT (9UL << S_MAXDEPTH)
45		53
46	#define INIT_SIZE 32 // initial scalar size to be allocated	54	#define INIT_SIZE 32 // initial scalar size to be allocated
47	#define INDENT_STEP 3 // spaces per indentation level	55	#define INDENT_STEP 3 // spaces per indentation level
48		56
49	#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)
50		60
51	#define SB do {	61	#define SB do {
52	#define SE } while (0)	62	#define SE } while (0)
53		63
54	#if __GNUC__ >= 3	64	#if __GNUC__ >= 3
…		…
64		74
65	#define IN_RANGE_INC(type,val,beg,end) \	75	#define IN_RANGE_INC(type,val,beg,end) \
66	((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \	76	((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \
67	<= (unsigned type)((unsigned type)(end) - (unsigned type)(beg)))	77	<= (unsigned type)((unsigned type)(end) - (unsigned type)(beg)))
68		78
		79	#define ERR_NESTING_EXCEEDED "json text or perl structure exceeds maximum nesting level (max_depth set too low?)"
		80
69	#ifdef USE_ITHREADS	81	#ifdef USE_ITHREADS
70	# define JSON_SLOW 1	82	# define JSON_SLOW 1
71	# 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))
72	#else	84	#else
73	# define JSON_SLOW 0	85	# define JSON_SLOW 0
74	# define JSON_STASH json_stash	86	# define JSON_STASH json_stash
75	#endif	87	#endif
76		88
		89	// the amount of HEs to allocate on the stack, when sorting keys
		90	#define STACK_HES 64
		91
77	static HV json_stash, json_boolean_stash; // JSON::XS::	92	static HV json_stash, types_boolean_stash; // JSON::XS::
78	static SV json_true, json_false;	93	static SV types_true, types_false, *sv_json;
		94
		95	enum {
		96	INCR_M_WS = 0, // initial whitespace skipping, must be 0
		97	INCR_M_STR, // inside string
		98	INCR_M_BS, // inside backslash
		99	INCR_M_C0, // inside comment in initial whitespace sequence
		100	INCR_M_C1, // inside comment in other places
		101	INCR_M_JSON // outside anything, count nesting
		102	};
		103
		104	#define INCR_DONE(json) ((json)->incr_nest <= 0 && (json)->incr_mode == INCR_M_JSON)
79		105
80	typedef struct {	106	typedef struct {
81	U32 flags;	107	U32 flags;
		108	U32 max_depth;
		109	STRLEN max_size;
		110
82	SV *cb_object;	111	SV *cb_object;
83	HV *cb_sk_object;	112	HV *cb_sk_object;
		113
		114	// for the incremental parser
		115	SV *incr_text; // the source text so far
		116	STRLEN incr_pos; // the current offset into the text
		117	int incr_nest; // {[]}-nesting level
		118	unsigned char incr_mode;
84	} JSON;	119	} JSON;
		120
		121	INLINE void
		122	json_init (JSON *json)
		123	{
		124	Zero (json, 1, JSON);
		125	json->max_depth = 512;
		126	}
85		127
86	/////////////////////////////////////////////////////////////////////////////	128	/////////////////////////////////////////////////////////////////////////////
87	// utility functions	129	// utility functions
88		130
		131	INLINE SV *
		132	get_bool (const char *name)
		133	{
		134	SV *sv = get_sv (name, 1);
		135
		136	SvREADONLY_on (sv);
		137	SvREADONLY_on (SvRV (sv));
		138
		139	return sv;
		140	}
		141
89	INLINE void	142	INLINE void
90	shrink (SV *sv)	143	shrink (SV *sv)
91	{	144	{
92	sv_utf8_downgrade (sv, 1);	145	sv_utf8_downgrade (sv, 1);
		146
93	if (SvLEN (sv) > SvCUR (sv) + 1)	147	if (SvLEN (sv) > SvCUR (sv) + 1)
94	{	148	{
95	#ifdef SvPV_shrink_to_cur	149	#ifdef SvPV_shrink_to_cur
96	SvPV_shrink_to_cur (sv);	150	SvPV_shrink_to_cur (sv);
97	#elif defined (SvPV_renew)	151	#elif defined (SvPV_renew)
…		…
141	*s++ = 0x80 \| ( ch & 0x3f);	195	*s++ = 0x80 \| ( ch & 0x3f);
142		196
143	return s;	197	return s;
144	}	198	}
145		199
		200	// convert offset pointer to character index, sv must be string
		201	static STRLEN
		202	ptr_to_index (SV sv, char offset)
		203	{
		204	return SvUTF8 (sv)
		205	? utf8_distance (offset, SvPVX (sv))
		206	: offset - SvPVX (sv);
		207	}
		208
		209	/////////////////////////////////////////////////////////////////////////////
		210	// fp hell
		211
		212	// scan a group of digits, and a trailing exponent
		213	static void
		214	json_atof_scan1 (const char s, NV accum, int *expo, int postdp, int maxdepth)
		215	{
		216	UV uaccum = 0;
		217	int eaccum = 0;
		218
		219	// if we recurse too deep, skip all remaining digits
		220	// to avoid a stack overflow attack
		221	if (expect_false (--maxdepth <= 0))
		222	while (((U8)*s - '0') < 10)
		223	++s;
		224
		225	for (;;)
		226	{
		227	U8 dig = (U8)*s - '0';
		228
		229	if (expect_false (dig >= 10))
		230	{
		231	if (dig == (U8)((U8)'.' - (U8)'0'))
		232	{
		233	++s;
		234	json_atof_scan1 (s, accum, expo, 1, maxdepth);
		235	}
		236	else if ((dig \| ' ') == 'e' - '0')
		237	{
		238	int exp2 = 0;
		239	int neg = 0;
		240
		241	++s;
		242
		243	if (*s == '-')
		244	{
		245	++s;
		246	neg = 1;
		247	}
		248	else if (*s == '+')
		249	++s;
		250
		251	while ((dig = (U8)*s - '0') < 10)
		252	exp2 = exp2 * 10 + *s++ - '0';
		253
		254	*expo += neg ? -exp2 : exp2;
		255	}
		256
		257	break;
		258	}
		259
		260	++s;
		261
		262	uaccum = uaccum * 10 + dig;
		263	++eaccum;
		264
		265	// if we have too many digits, then recurse for more
		266	// we actually do this for rather few digits
		267	if (uaccum >= (UV_MAX - 9) / 10)
		268	{
		269	if (postdp) *expo -= eaccum;
		270	json_atof_scan1 (s, accum, expo, postdp, maxdepth);
		271	if (postdp) *expo += eaccum;
		272
		273	break;
		274	}
		275	}
		276
		277	// this relies greatly on the quality of the pow ()
		278	// implementation of the platform, but a good
		279	// implementation is hard to beat.
		280	// (IEEE 754 conformant ones are required to be exact)
		281	if (postdp) *expo -= eaccum;
		282	accum += uaccum Perl_pow (10., *expo);
		283	*expo += eaccum;
		284	}
		285
		286	static NV
		287	json_atof (const char *s)
		288	{
		289	NV accum = 0.;
		290	int expo = 0;
		291	int neg = 0;
		292
		293	if (*s == '-')
		294	{
		295	++s;
		296	neg = 1;
		297	}
		298
		299	// a recursion depth of ten gives us >>500 bits
		300	json_atof_scan1 (s, &accum, &expo, 0, 10);
		301
		302	return neg ? -accum : accum;
		303	}
146	/////////////////////////////////////////////////////////////////////////////	304	/////////////////////////////////////////////////////////////////////////////
147	// encoder	305	// encoder
148		306
149	// structure used for encoding JSON	307	// structure used for encoding JSON
150	typedef struct	308	typedef struct
…		…
152	char *cur; // SvPVX (sv) + current output position	310	char *cur; // SvPVX (sv) + current output position
153	char *end; // SvEND (sv)	311	char *end; // SvEND (sv)
154	SV *sv; // result scalar	312	SV *sv; // result scalar
155	JSON json;	313	JSON json;
156	U32 indent; // indentation level	314	U32 indent; // indentation level
157	U32 maxdepth; // max. indentation/recursion level
158	UV limit; // escape character values >= this value when encoding	315	UV limit; // escape character values >= this value when encoding
159	} enc_t;	316	} enc_t;
160		317
161	INLINE void	318	INLINE void
162	need (enc_t *enc, STRLEN len)	319	need (enc_t *enc, STRLEN len)
163	{	320	{
164	if (expect_false (enc->cur + len >= enc->end))	321	if (expect_false (enc->cur + len >= enc->end))
165	{	322	{
166	STRLEN cur = enc->cur - SvPVX (enc->sv);	323	STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);
167	SvGROW (enc->sv, cur + len + 1);	324	SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
168	enc->cur = SvPVX (enc->sv) + cur;	325	enc->cur = SvPVX (enc->sv) + cur;
169	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;	326	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;
170	}	327	}
171	}	328	}
172		329
…		…
247	(int)((uch - 0x10000) % 0x400 + 0xDC00));	404	(int)((uch - 0x10000) % 0x400 + 0xDC00));
248	enc->cur += 12;	405	enc->cur += 12;
249	}	406	}
250	else	407	else
251	{	408	{
252	static char hexdigit [16] = "0123456789abcdef";
253	need (enc, len += 5);	409	need (enc, len += 5);
254	*enc->cur++ = '\\';	410	*enc->cur++ = '\\';
255	*enc->cur++ = 'u';	411	*enc->cur++ = 'u';
256	*enc->cur++ = hexdigit [ uch >> 12 ];	412	*enc->cur++ = PL_hexdigit [ uch >> 12 ];
257	*enc->cur++ = hexdigit [(uch >> 8) & 15];	413	*enc->cur++ = PL_hexdigit [(uch >> 8) & 15];
258	*enc->cur++ = hexdigit [(uch >> 4) & 15];	414	*enc->cur++ = PL_hexdigit [(uch >> 4) & 15];
259	*enc->cur++ = hexdigit [(uch >> 0) & 15];	415	*enc->cur++ = PL_hexdigit [(uch >> 0) & 15];
260	}	416	}
261		417
262	str += clen;	418	str += clen;
263	}	419	}
264	else if (enc->json.flags & F_LATIN1)	420	else if (enc->json.flags & F_LATIN1)
…		…
335	static void	491	static void
336	encode_av (enc_t enc, AV av)	492	encode_av (enc_t enc, AV av)
337	{	493	{
338	int i, len = av_len (av);	494	int i, len = av_len (av);
339		495
340	if (enc->indent >= enc->maxdepth)	496	if (enc->indent >= enc->json.max_depth)
341	croak ("data structure too deep (hit recursion limit)");	497	croak (ERR_NESTING_EXCEEDED);
342		498
343	encode_ch (enc, '[');	499	encode_ch (enc, '[');
344		500
345	if (len >= 0)	501	if (len >= 0)
346	{	502	{
347	encode_nl (enc); ++enc->indent;	503	encode_nl (enc); ++enc->indent;
348		504
349	for (i = 0; i <= len; ++i)	505	for (i = 0; i <= len; ++i)
…		…
361	encode_comma (enc);	517	encode_comma (enc);
362	}	518	}
363		519
364	encode_nl (enc); --enc->indent; encode_indent (enc);	520	encode_nl (enc); --enc->indent; encode_indent (enc);
365	}	521	}
366		522
367	encode_ch (enc, ']');	523	encode_ch (enc, ']');
368	}	524	}
369		525
370	static void	526	static void
371	encode_hk (enc_t enc, HE he)	527	encode_hk (enc_t enc, HE he)
…		…
375	if (HeKLEN (he) == HEf_SVKEY)	531	if (HeKLEN (he) == HEf_SVKEY)
376	{	532	{
377	SV *sv = HeSVKEY (he);	533	SV *sv = HeSVKEY (he);
378	STRLEN len;	534	STRLEN len;
379	char *str;	535	char *str;
380		536
381	SvGETMAGIC (sv);	537	SvGETMAGIC (sv);
382	str = SvPV (sv, len);	538	str = SvPV (sv, len);
383		539
384	encode_str (enc, str, len, SvUTF8 (sv));	540	encode_str (enc, str, len, SvUTF8 (sv));
385	}	541	}
…		…
420		576
421	static void	577	static void
422	encode_hv (enc_t enc, HV hv)	578	encode_hv (enc_t enc, HV hv)
423	{	579	{
424	HE *he;	580	HE *he;
425	int count;
426		581
427	if (enc->indent >= enc->maxdepth)	582	if (enc->indent >= enc->json.max_depth)
428	croak ("data structure too deep (hit recursion limit)");	583	croak (ERR_NESTING_EXCEEDED);
429		584
430	encode_ch (enc, '{');	585	encode_ch (enc, '{');
431		586
432	// for canonical output we have to sort by keys first	587	// for canonical output we have to sort by keys first
433	// actually, this is mostly due to the stupid so-called	588	// actually, this is mostly due to the stupid so-called
434	// security workaround added somewhere in 5.8.x.	589	// security workaround added somewhere in 5.8.x
435	// that randomises hash orderings	590	// that randomises hash orderings
436	if (enc->json.flags & F_CANONICAL)	591	if (enc->json.flags & F_CANONICAL && !SvRMAGICAL (hv))
437	{	592	{
438	int count = hv_iterinit (hv);	593	int count = hv_iterinit (hv);
439		594
440	if (SvMAGICAL (hv))	595	if (SvMAGICAL (hv))
441	{	596	{
…		…
452	}	607	}
453		608
454	if (count)	609	if (count)
455	{	610	{
456	int i, fast = 1;	611	int i, fast = 1;
457	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	612	HE *hes_stack [STACK_HES];
458	HE *hes = _alloca (count sizeof (HE));	613	HE **hes = hes_stack;
459	#else	614
460	HE *hes [count]; // if your compiler dies here, you need to enable C99 mode	615	// allocate larger arrays on the heap
461	#endif	616	if (count > STACK_HES)
		617	{
		618	SV sv = sv_2mortal (NEWSV (0, count sizeof (*hes)));
		619	hes = (HE **)SvPVX (sv);
		620	}
462		621
463	i = 0;	622	i = 0;
464	while ((he = hv_iternext (hv)))	623	while ((he = hv_iternext (hv)))
465	{	624	{
466	hes [i++] = he;	625	hes [i++] = he;
…		…
535	// encode objects, arrays and special \0=false and \1=true values.	694	// encode objects, arrays and special \0=false and \1=true values.
536	static void	695	static void
537	encode_rv (enc_t enc, SV sv)	696	encode_rv (enc_t enc, SV sv)
538	{	697	{
539	svtype svt;	698	svtype svt;
		699	GV *method;
540		700
541	SvGETMAGIC (sv);	701	SvGETMAGIC (sv);
542	svt = SvTYPE (sv);	702	svt = SvTYPE (sv);
543		703
544	if (expect_false (SvOBJECT (sv)))	704	if (expect_false (SvOBJECT (sv)))
545	{	705	{
546	HV *stash = !JSON_SLOW \|\| json_boolean_stash	706	HV *boolean_stash = !JSON_SLOW \|\| types_boolean_stash
547	? json_boolean_stash	707	? types_boolean_stash
548	: gv_stashpv ("JSON::XS::Boolean", 1);	708	: gv_stashpv ("Types::Serialiser::Boolean", 1);
		709	HV *stash = SvSTASH (sv);
549		710
550	if (SvSTASH (sv) == stash)	711	if (stash == boolean_stash)
551	{	712	{
552	if (SvIV (sv))	713	if (SvIV (sv))
553	encode_str (enc, "true", 4, 0);	714	encode_str (enc, "true", 4, 0);
554	else	715	else
555	encode_str (enc, "false", 5, 0);	716	encode_str (enc, "false", 5, 0);
556	}	717	}
		718	else if ((enc->json.flags & F_ALLOW_TAGS) && (method = gv_fetchmethod_autoload (stash, "FREEZE", 0)))
		719	{
		720	int count;
		721	dSP;
		722
		723	ENTER; SAVETMPS;
		724	SAVESTACK_POS ();
		725	PUSHMARK (SP);
		726	EXTEND (SP, 2);
		727	// we re-bless the reference to get overload and other niceties right
		728	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
		729	PUSHs (sv_json);
		730
		731	PUTBACK;
		732	count = call_sv ((SV *)GvCV (method), G_ARRAY);
		733	SPAGAIN;
		734
		735	// catch this surprisingly common error
		736	if (SvROK (TOPs) && SvRV (TOPs) == sv)
		737	croak ("%s::FREEZE method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
		738
		739	encode_ch (enc, '(');
		740	encode_ch (enc, '"');
		741	encode_str (enc, HvNAME (stash), HvNAMELEN (stash), HvNAMEUTF8 (stash));
		742	encode_ch (enc, '"');
		743	encode_ch (enc, ')');
		744	encode_ch (enc, '[');
		745
		746	while (count)
		747	{
		748	encode_sv (enc, SP[1 - count--]);
		749
		750	if (count)
		751	encode_ch (enc, ',');
		752	}
		753
		754	encode_ch (enc, ']');
		755
		756	FREETMPS; LEAVE;
		757	}
		758	else if ((enc->json.flags & F_CONV_BLESSED) && (method = gv_fetchmethod_autoload (stash, "TO_JSON", 0)))
		759	{
		760	dSP;
		761
		762	ENTER; SAVETMPS;
		763	PUSHMARK (SP);
		764	// we re-bless the reference to get overload and other niceties right
		765	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
		766
		767	// calling with G_SCALAR ensures that we always get a 1 return value
		768	PUTBACK;
		769	call_sv ((SV *)GvCV (method), G_SCALAR);
		770	SPAGAIN;
		771
		772	// catch this surprisingly common error
		773	if (SvROK (TOPs) && SvRV (TOPs) == sv)
		774	croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
		775
		776	sv = POPs;
		777	PUTBACK;
		778
		779	encode_sv (enc, sv);
		780
		781	FREETMPS; LEAVE;
		782	}
		783	else if (enc->json.flags & F_ALLOW_BLESSED)
		784	encode_str (enc, "null", 4, 0);
557	else	785	else
558	{
559	#if 0
560	if (0 && sv_derived_from (rv, "JSON::Literal"))
561	{
562	// not yet
563	}
564	#endif
565	if (enc->json.flags & F_CONV_BLESSED)
566	{
567	// we re-bless the reference to get overload and other niceties right
568	GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 0);
569
570	if (to_json)
571	{
572	dSP;
573
574	ENTER; SAVETMPS; PUSHMARK (SP);
575	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv)));
576
577	// calling with G_SCALAR ensures that we always get a 1 return value
578	PUTBACK;
579	call_sv ((SV *)GvCV (to_json), G_SCALAR);
580	SPAGAIN;
581
582	// catch this surprisingly common error
583	if (SvROK (TOPs) && SvRV (TOPs) == sv)
584	croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
585
586	sv = POPs;
587	PUTBACK;
588
589	encode_sv (enc, sv);
590
591	FREETMPS; LEAVE;
592	}
593	else if (enc->json.flags & F_ALLOW_BLESSED)
594	encode_str (enc, "null", 4, 0);
595	else
596	croak ("encountered object '%s', but neither allow_blessed enabled nor TO_JSON method available on it",
597	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
598	}
599	else if (enc->json.flags & F_ALLOW_BLESSED)
600	encode_str (enc, "null", 4, 0);
601	else
602	croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled",	786	croak ("encountered object '%s', but neither allow_blessed, convert_blessed nor allow_tags settings are enabled (or TO_JSON/FREEZE method missing)",
603	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	787	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
604	}
605	}	788	}
606	else if (svt == SVt_PVHV)	789	else if (svt == SVt_PVHV)
607	encode_hv (enc, (HV *)sv);	790	encode_hv (enc, (HV *)sv);
608	else if (svt == SVt_PVAV)	791	else if (svt == SVt_PVAV)
609	encode_av (enc, (AV *)sv);	792	encode_av (enc, (AV *)sv);
…		…
614		797
615	if (len == 1 && *pv == '1')	798	if (len == 1 && *pv == '1')
616	encode_str (enc, "true", 4, 0);	799	encode_str (enc, "true", 4, 0);
617	else if (len == 1 && *pv == '0')	800	else if (len == 1 && *pv == '0')
618	encode_str (enc, "false", 5, 0);	801	encode_str (enc, "false", 5, 0);
		802	else if (enc->json.flags & F_ALLOW_UNKNOWN)
		803	encode_str (enc, "null", 4, 0);
619	else	804	else
620	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",	805	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",
621	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	806	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
622	}	807	}
		808	else if (enc->json.flags & F_ALLOW_UNKNOWN)
		809	encode_str (enc, "null", 4, 0);
623	else	810	else
624	croak ("encountered %s, but JSON can only represent references to arrays or hashes",	811	croak ("encountered %s, but JSON can only represent references to arrays or hashes",
625	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	812	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
626	}	813	}
627		814
…		…
648	else if (SvIOKp (sv))	835	else if (SvIOKp (sv))
649	{	836	{
650	// we assume we can always read an IV as a UV and vice versa	837	// we assume we can always read an IV as a UV and vice versa
651	// we assume two's complement	838	// we assume two's complement
652	// we assume no aliasing issues in the union	839	// we assume no aliasing issues in the union
653	if (SvIsUV (sv) ? SvUVX (sv) > 59000	840	if (SvIsUV (sv) ? SvUVX (sv) <= 59000
654	: SvIVX (sv) > 59000 \|\| SvIVX (sv) < -59000)	841	: SvIVX (sv) <= 59000 && SvIVX (sv) >= -59000)
655	{
656	// large integer, use the (rather slow) snprintf way.
657	need (enc, sizeof (UV) * 5 / 2 + 1); // CHAR_BIT is at least 8
658	enc->cur +=
659	SvIsUV(sv)
660	? snprintf (enc->cur, sizeof (UV) * 3, "%"UVuf, (UV)SvUVX (sv))
661	: snprintf (enc->cur, sizeof (UV) * 3, "%"IVdf, (IV)SvIVX (sv));
662	}
663	else
664	{	842	{
665	// optimise the "small number case"	843	// optimise the "small number case"
666	// code will likely be branchless and use only a single multiplication	844	// code will likely be branchless and use only a single multiplication
667	// works for numbers up to 59074	845	// works for numbers up to 59074
668	I32 i = SvIVX (sv);	846	I32 i = SvIVX (sv);
…		…
679		857
680	// now output digit by digit, each time masking out the integer part	858	// now output digit by digit, each time masking out the integer part
681	// and multiplying by 5 while moving the decimal point one to the right,	859	// and multiplying by 5 while moving the decimal point one to the right,
682	// resulting in a net multiplication by 10.	860	// resulting in a net multiplication by 10.
683	// we always write the digit to memory but conditionally increment	861	// we always write the digit to memory but conditionally increment
684	// the pointer, to ease the usage of conditional move instructions.	862	// the pointer, to enable the use of conditional move instructions.
685	digit = u >> 28; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0xfffffff) 5;	863	digit = u >> 28; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0xfffffffUL) 5;
686	digit = u >> 27; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x7ffffff) 5;	864	digit = u >> 27; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x7ffffffUL) 5;
687	digit = u >> 26; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x3ffffff) 5;	865	digit = u >> 26; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x3ffffffUL) 5;
688	digit = u >> 25; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x1ffffff) 5;	866	digit = u >> 25; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x1ffffffUL) 5;
689	digit = u >> 24; *enc->cur = digit + '0'; enc->cur += 1; // correctly generate '0'	867	digit = u >> 24; *enc->cur = digit + '0'; enc->cur += 1; // correctly generate '0'
690	}	868	}
		869	else
		870	{
		871	// large integer, use the (rather slow) snprintf way.
		872	need (enc, IVUV_MAXCHARS);
		873	enc->cur +=
		874	SvIsUV(sv)
		875	? snprintf (enc->cur, IVUV_MAXCHARS, "%"UVuf, (UV)SvUVX (sv))
		876	: snprintf (enc->cur, IVUV_MAXCHARS, "%"IVdf, (IV)SvIVX (sv));
		877	}
691	}	878	}
692	else if (SvROK (sv))	879	else if (SvROK (sv))
693	encode_rv (enc, SvRV (sv));	880	encode_rv (enc, SvRV (sv));
694	else if (!SvOK (sv))	881	else if (!SvOK (sv) \|\| enc->json.flags & F_ALLOW_UNKNOWN)
695	encode_str (enc, "null", 4, 0);	882	encode_str (enc, "null", 4, 0);
696	else	883	else
697	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",	884	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, check your input data",
698	SvPV_nolen (sv), SvFLAGS (sv));	885	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));
		886	}
		887
		888	static int
		889	json_scalar (SV *scalar)
		890	{
		891	return 0;//D
		892	if (!SvROK (scalar))
		893	return 1;
699	}	894	}
700		895
701	static SV *	896	static SV *
702	encode_json (SV scalar, JSON json)	897	encode_json (SV scalar, JSON json)
703	{	898	{
704	enc_t enc;	899	enc_t enc;
705		900
706	if (!(json->flags & F_ALLOW_NONREF) && !SvROK (scalar))	901	if (!(json->flags & F_ALLOW_NONREF) && json_scalar (scalar))
707	croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");	902	croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");
708		903
709	enc.json = *json;	904	enc.json = *json;
710	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	905	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
711	enc.cur = SvPVX (enc.sv);	906	enc.cur = SvPVX (enc.sv);
712	enc.end = SvEND (enc.sv);	907	enc.end = SvEND (enc.sv);
713	enc.indent = 0;	908	enc.indent = 0;
714	enc.maxdepth = DEC_DEPTH (enc.json.flags);
715	enc.limit = enc.json.flags & F_ASCII ? 0x000080UL	909	enc.limit = enc.json.flags & F_ASCII ? 0x000080UL
716	: enc.json.flags & F_LATIN1 ? 0x000100UL	910	: enc.json.flags & F_LATIN1 ? 0x000100UL
717	: 0x110000UL;	911	: 0x110000UL;
718		912
719	SvPOK_only (enc.sv);	913	SvPOK_only (enc.sv);
720	encode_sv (&enc, scalar);	914	encode_sv (&enc, scalar);
		915	encode_nl (&enc);
721		916
722	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));	917	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));
723	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings	918	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings
724		919
725	if (!(enc.json.flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))	920	if (!(enc.json.flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))
…		…
786	if (*dec->cur != ch) \	981	if (*dec->cur != ch) \
787	ERR (# ch " expected"); \	982	ERR (# ch " expected"); \
788	++dec->cur; \	983	++dec->cur; \
789	SE	984	SE
790		985
791	#define DEC_INC_DEPTH if (++dec->depth > dec->maxdepth) ERR ("json datastructure exceeds maximum nesting level (set a higher max_depth)")	986	#define DEC_INC_DEPTH if (++dec->depth > dec->json.max_depth) ERR (ERR_NESTING_EXCEEDED)
792	#define DEC_DEC_DEPTH --dec->depth	987	#define DEC_DEC_DEPTH --dec->depth
793		988
794	static SV decode_sv (dec_t dec);	989	static SV decode_sv (dec_t dec);
795		990
796	static signed char decode_hexdigit[256];	991	static signed char decode_hexdigit[256];
…		…
905	else if (expect_true (ch >= 0x20 && ch < 0x80))	1100	else if (expect_true (ch >= 0x20 && ch < 0x80))
906	*cur++ = ch;	1101	*cur++ = ch;
907	else if (ch >= 0x80)	1102	else if (ch >= 0x80)
908	{	1103	{
909	STRLEN clen;	1104	STRLEN clen;
910	UV uch;
911		1105
912	--dec_cur;	1106	--dec_cur;
913		1107
914	uch = decode_utf8 (dec_cur, dec->end - dec_cur, &clen);	1108	decode_utf8 (dec_cur, dec->end - dec_cur, &clen);
915	if (clen == (STRLEN)-1)	1109	if (clen == (STRLEN)-1)
916	ERR ("malformed UTF-8 character in JSON string");	1110	ERR ("malformed UTF-8 character in JSON string");
917		1111
918	do	1112	do
919	cur++ = dec_cur++;	1113	cur++ = dec_cur++;
920	while (--clen);	1114	while (--clen);
921		1115
922	utf8 = 1;	1116	utf8 = 1;
923	}	1117	}
		1118	else if (ch == '\t' && dec->json.flags & F_RELAXED)
		1119	*cur++ = ch;
924	else	1120	else
925	{	1121	{
926	--dec_cur;	1122	--dec_cur;
927		1123
928	if (!ch)	1124	if (!ch)
…		…
936	{	1132	{
937	STRLEN len = cur - buf;	1133	STRLEN len = cur - buf;
938		1134
939	if (sv)	1135	if (sv)
940	{	1136	{
941	SvGROW (sv, SvCUR (sv) + len + 1);	1137	STRLEN cur = SvCUR (sv);
		1138
		1139	if (SvLEN (sv) <= cur + len)
		1140	SvGROW (sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
		1141
942	memcpy (SvPVX (sv) + SvCUR (sv), buf, len);	1142	memcpy (SvPVX (sv) + SvCUR (sv), buf, len);
943	SvCUR_set (sv, SvCUR (sv) + len);	1143	SvCUR_set (sv, SvCUR (sv) + len);
944	}	1144	}
945	else	1145	else
946	sv = newSVpvn (buf, len);	1146	sv = newSVpvn (buf, len);
…		…
1037		1237
1038	// special case the rather common 1..5-digit-int case	1238	// special case the rather common 1..5-digit-int case
1039	if (*start == '-')	1239	if (*start == '-')
1040	switch (len)	1240	switch (len)
1041	{	1241	{
1042	case 2: return newSViv (-( start [1] - '0' * 1));	1242	case 2: return newSViv (-(IV)( start [1] - '0' * 1));
1043	case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11));	1243	case 3: return newSViv (-(IV)( start [1] * 10 + start [2] - '0' * 11));
1044	case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111));	1244	case 4: return newSViv (-(IV)( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111));
1045	case 5: return newSViv (-( start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111));	1245	case 5: return newSViv (-(IV)( start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111));
1046	case 6: return newSViv (-(start [1] * 10000 + start [2] * 1000 + start [3] * 100 + start [4] * 10 + start [5] - '0' * 11111));	1246	case 6: return newSViv (-(IV)(start [1] * 10000 + start [2] * 1000 + start [3] * 100 + start [4] * 10 + start [5] - '0' * 11111));
1047	}	1247	}
1048	else	1248	else
1049	switch (len)	1249	switch (len)
1050	{	1250	{
1051	case 1: return newSViv ( start [0] - '0' * 1);	1251	case 1: return newSViv ( start [0] - '0' * 1);
1052	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);	1252	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);
1053	case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111);	1253	case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111);
1054	case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111);	1254	case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111);
1055	case 5: return newSViv ( start [0] * 10000 + start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 11111);	1255	case 5: return newSViv ( start [0] * 10000 + start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 11111);
1056	}	1256	}
1057		1257
1058	{	1258	{
1059	UV uv;	1259	UV uv;
1060	int numtype = grok_number (start, len, &uv);	1260	int numtype = grok_number (start, len, &uv);
…		…
1069	}	1269	}
1070		1270
1071	len -= *start == '-' ? 1 : 0;	1271	len -= *start == '-' ? 1 : 0;
1072		1272
1073	// does not fit into IV or UV, try NV	1273	// does not fit into IV or UV, try NV
1074	if ((sizeof (NV) == sizeof (double) && DBL_DIG >= len)	1274	if (len <= NV_DIG)
1075	#if defined (LDBL_DIG)
1076	\|\| (sizeof (NV) == sizeof (long double) && LDBL_DIG >= len)
1077	#endif
1078	)
1079	// fits into NV without loss of precision	1275	// fits into NV without loss of precision
1080	return newSVnv (Atof (start));	1276	return newSVnv (json_atof (start));
1081		1277
1082	// everything else fails, convert it to a string	1278	// everything else fails, convert it to a string
1083	return newSVpvn (start, dec->cur - start);	1279	return newSVpvn (start, dec->cur - start);
1084	}	1280	}
1085		1281
1086	// loss of precision here	1282	// loss of precision here
1087	return newSVnv (Atof (start));	1283	return newSVnv (json_atof (start));
1088		1284
1089	fail:	1285	fail:
1090	return 0;	1286	return 0;
1091	}	1287	}
1092		1288
…		…
1116	if (*dec->cur == ']')	1312	if (*dec->cur == ']')
1117	{	1313	{
1118	++dec->cur;	1314	++dec->cur;
1119	break;	1315	break;
1120	}	1316	}
1121		1317
1122	if (*dec->cur != ',')	1318	if (*dec->cur != ',')
1123	ERR (", or ] expected while parsing array");	1319	ERR (", or ] expected while parsing array");
1124		1320
1125	++dec->cur;	1321	++dec->cur;
1126		1322
…		…
1168	char *p = dec->cur;	1364	char *p = dec->cur;
1169	char *e = p + 24; // only try up to 24 bytes	1365	char *e = p + 24; // only try up to 24 bytes
1170		1366
1171	for (;;)	1367	for (;;)
1172	{	1368	{
1173	// the >= 0x80 is true on most architectures	1369	// the >= 0x80 is false on most architectures
1174	if (p == e \|\| p < 0x20 \|\| p >= 0x80 \|\| *p == '\\')	1370	if (p == e \|\| p < 0x20 \|\| p >= 0x80 \|\| *p == '\\')
1175	{	1371	{
1176	// slow path, back up and use decode_str	1372	// slow path, back up and use decode_str
1177	SV *key = decode_str (dec);	1373	SV *key = decode_str (dec);
1178	if (!key)	1374	if (!key)
…		…
1250		1446
1251	hv_iterinit (hv);	1447	hv_iterinit (hv);
1252	he = hv_iternext (hv);	1448	he = hv_iternext (hv);
1253	hv_iterinit (hv);	1449	hv_iterinit (hv);
1254		1450
1255	// the next line creates a mortal sv each time its called.	1451	// the next line creates a mortal sv each time it's called.
1256	// might want to optimise this for common cases.	1452	// might want to optimise this for common cases.
1257	cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0);	1453	cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0);
1258		1454
1259	if (cb)	1455	if (cb)
1260	{	1456	{
1261	dSP;	1457	dSP;
1262	int count;	1458	int count;
1263		1459
1264	ENTER; SAVETMPS; PUSHMARK (SP);	1460	ENTER; SAVETMPS;
		1461	SAVESTACK_POS ();
		1462	PUSHMARK (SP);
1265	XPUSHs (HeVAL (he));	1463	XPUSHs (HeVAL (he));
		1464	sv_2mortal (sv);
1266		1465
1267	PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN;	1466	PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN;
1268		1467
1269	if (count == 1)	1468	if (count == 1)
1270	{	1469	{
1271	sv = newSVsv (POPs);	1470	sv = newSVsv (POPs);
1272	FREETMPS; LEAVE;	1471	FREETMPS; LEAVE;
1273	return sv;	1472	return sv;
1274	}	1473	}
1275		1474
		1475	SvREFCNT_inc (sv);
1276	FREETMPS; LEAVE;	1476	FREETMPS; LEAVE;
1277	}	1477	}
1278	}	1478	}
1279		1479
1280	if (dec->json.cb_object)	1480	if (dec->json.cb_object)
1281	{	1481	{
1282	dSP;	1482	dSP;
1283	int count;	1483	int count;
1284		1484
1285	ENTER; SAVETMPS; PUSHMARK (SP);	1485	ENTER; SAVETMPS;
		1486	SAVESTACK_POS ();
		1487	PUSHMARK (SP);
1286	XPUSHs (sv_2mortal (sv));	1488	XPUSHs (sv_2mortal (sv));
1287		1489
1288	PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN;	1490	PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN;
1289		1491
1290	if (count == 1)	1492	if (count == 1)
…		…
1306	DEC_DEC_DEPTH;	1508	DEC_DEC_DEPTH;
1307	return 0;	1509	return 0;
1308	}	1510	}
1309		1511
1310	static SV *	1512	static SV *
		1513	decode_tag (dec_t *dec)
		1514	{
		1515	SV *tag = 0;
		1516	SV *val = 0;
		1517
		1518	if (!(dec->json.flags & F_ALLOW_TAGS))
		1519	ERR ("malformed JSON string, neither array, object, number, string or atom");
		1520
		1521	++dec->cur;
		1522
		1523	decode_ws (dec);
		1524
		1525	tag = decode_sv (dec);
		1526	if (!tag)
		1527	goto fail;
		1528
		1529	if (!SvPOK (tag))
		1530	ERR ("malformed JSON string, (tag) must be a string");
		1531
		1532	decode_ws (dec);
		1533
		1534	if (*dec->cur != ')')
		1535	ERR (") expected after tag");
		1536
		1537	++dec->cur;
		1538
		1539	decode_ws (dec);
		1540
		1541	val = decode_sv (dec);
		1542	if (!val)
		1543	goto fail;
		1544
		1545	if (!SvROK (val) \|\| SvTYPE (SvRV (val)) != SVt_PVAV)
		1546	ERR ("malformed JSON string, tag value must be an array");
		1547
		1548	{
		1549	AV av = (AV )SvRV (val);
		1550	int i, len = av_len (av) + 1;
		1551	HV *stash = gv_stashsv (tag, 0);
		1552	SV *sv;
		1553
		1554	if (!stash)
		1555	ERR ("cannot decode perl-object (package does not exist)");
		1556
		1557	GV *method = gv_fetchmethod_autoload (stash, "THAW", 0);
		1558
		1559	if (!method)
		1560	ERR ("cannot decode perl-object (package does not have a THAW method)");
		1561
		1562	dSP;
		1563
		1564	ENTER; SAVETMPS;
		1565	PUSHMARK (SP);
		1566	EXTEND (SP, len + 2);
		1567	// we re-bless the reference to get overload and other niceties right
		1568	PUSHs (tag);
		1569	PUSHs (sv_json);
		1570
		1571	for (i = 0; i < len; ++i)
		1572	PUSHs (*av_fetch (av, i, 1));
		1573
		1574	PUTBACK;
		1575	call_sv ((SV *)GvCV (method), G_SCALAR);
		1576	SPAGAIN;
		1577
		1578	SvREFCNT_dec (tag);
		1579	SvREFCNT_dec (val);
		1580	sv = SvREFCNT_inc (POPs);
		1581
		1582	PUTBACK;
		1583
		1584	FREETMPS; LEAVE;
		1585
		1586	return sv;
		1587	}
		1588
		1589	fail:
		1590	SvREFCNT_dec (tag);
		1591	SvREFCNT_dec (val);
		1592	return 0;
		1593	}
		1594
		1595	static SV *
1311	decode_sv (dec_t *dec)	1596	decode_sv (dec_t *dec)
1312	{	1597	{
1313	// the beauty of JSON: you need exactly one character lookahead	1598	// the beauty of JSON: you need exactly one character lookahead
1314	// to parse everything.	1599	// to parse everything.
1315	switch (*dec->cur)	1600	switch (*dec->cur)
1316	{	1601	{
1317	case '"': ++dec->cur; return decode_str (dec);	1602	case '"': ++dec->cur; return decode_str (dec);
1318	case '[': ++dec->cur; return decode_av (dec);	1603	case '[': ++dec->cur; return decode_av (dec);
1319	case '{': ++dec->cur; return decode_hv (dec);	1604	case '{': ++dec->cur; return decode_hv (dec);
		1605	case '(': return decode_tag (dec);
1320		1606
1321	case '-':	1607	case '-':
1322	case '0': case '1': case '2': case '3': case '4':	1608	case '0': case '1': case '2': case '3': case '4':
1323	case '5': case '6': case '7': case '8': case '9':	1609	case '5': case '6': case '7': case '8': case '9':
1324	return decode_num (dec);	1610	return decode_num (dec);
…		…
1326	case 't':	1612	case 't':
1327	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))	1613	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))
1328	{	1614	{
1329	dec->cur += 4;	1615	dec->cur += 4;
1330	#if JSON_SLOW	1616	#if JSON_SLOW
1331	json_true = get_sv ("JSON::XS::true", 1); SvREADONLY_on (json_true);	1617	types_true = get_bool ("Types::Serialiser::true");
1332	#endif	1618	#endif
1333	return SvREFCNT_inc (json_true);	1619	return newSVsv (types_true);
1334	}	1620	}
1335	else	1621	else
1336	ERR ("'true' expected");	1622	ERR ("'true' expected");
1337		1623
1338	break;	1624	break;
…		…
1340	case 'f':	1626	case 'f':
1341	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))	1627	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))
1342	{	1628	{
1343	dec->cur += 5;	1629	dec->cur += 5;
1344	#if JSON_SLOW	1630	#if JSON_SLOW
1345	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);	1631	types_false = get_bool ("Types::Serialiser::false");
1346	#endif	1632	#endif
1347	return SvREFCNT_inc (json_false);	1633	return newSVsv (types_false);
1348	}	1634	}
1349	else	1635	else
1350	ERR ("'false' expected");	1636	ERR ("'false' expected");
1351		1637
1352	break;	1638	break;
…		…
1361	ERR ("'null' expected");	1647	ERR ("'null' expected");
1362		1648
1363	break;	1649	break;
1364		1650
1365	default:	1651	default:
1366	ERR ("malformed JSON string, neither array, object, number, string or atom");	1652	ERR ("malformed JSON string, neither tag, array, object, number, string or atom");
1367	break;	1653	break;
1368	}	1654	}
1369		1655
1370	fail:	1656	fail:
1371	return 0;	1657	return 0;
1372	}	1658	}
1373		1659
1374	static SV *	1660	static SV *
1375	decode_json (SV string, JSON json, UV *offset_return)	1661	decode_json (SV string, JSON json, char **offset_return)
1376	{	1662	{
1377	dec_t dec;	1663	dec_t dec;
1378	UV offset;
1379	SV *sv;	1664	SV *sv;
1380		1665
		1666	/* work around bugs in 5.10 where manipulating magic values
		1667	* makes perl ignore the magic in subsequent accesses.
		1668	* also make a copy of non-PV values, to get them into a clean
		1669	* state (SvPV should do that, but it's buggy, see below).
		1670	*/
1381	SvGETMAGIC (string);	1671	/SvGETMAGIC (string);/
		1672	if (SvMAGICAL (string) \|\| !SvPOK (string))
		1673	string = sv_2mortal (newSVsv (string));
		1674
1382	SvUPGRADE (string, SVt_PV);	1675	SvUPGRADE (string, SVt_PV);
1383		1676
1384	if (json->flags & F_MAXSIZE && SvCUR (string) > DEC_SIZE (json->flags))	1677	/* work around a bug in perl 5.10, which causes SvCUR to fail an
		1678	* assertion with -DDEBUGGING, although SvCUR is documented to
		1679	* return the xpv_cur field which certainly exists after upgrading.
		1680	* according to nicholas clark, calling SvPOK fixes this.
		1681	* But it doesn't fix it, so try another workaround, call SvPV_nolen
		1682	* and hope for the best.
		1683	* Damnit, SvPV_nolen still trips over yet another assertion. This
		1684	* assertion business is seriously broken, try yet another workaround
		1685	* for the broken -DDEBUGGING.
		1686	*/
		1687	{
		1688	#ifdef DEBUGGING
		1689	STRLEN offset = SvOK (string) ? sv_len (string) : 0;
		1690	#else
		1691	STRLEN offset = SvCUR (string);
		1692	#endif
		1693
		1694	if (offset > json->max_size && json->max_size)
1385	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",	1695	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",
1386	(unsigned long)SvCUR (string), (unsigned long)DEC_SIZE (json->flags));	1696	(unsigned long)SvCUR (string), (unsigned long)json->max_size);
		1697	}
1387		1698
1388	if (json->flags & F_UTF8)	1699	if (DECODE_WANTS_OCTETS (json))
1389	sv_utf8_downgrade (string, 0);	1700	sv_utf8_downgrade (string, 0);
1390	else	1701	else
1391	sv_utf8_upgrade (string);	1702	sv_utf8_upgrade (string);
1392		1703
1393	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP	1704	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP
1394		1705
1395	dec.json = *json;	1706	dec.json = *json;
1396	dec.cur = SvPVX (string);	1707	dec.cur = SvPVX (string);
1397	dec.end = SvEND (string);	1708	dec.end = SvEND (string);
1398	dec.err = 0;	1709	dec.err = 0;
1399	dec.depth = 0;	1710	dec.depth = 0;
1400	dec.maxdepth = DEC_DEPTH (dec.json.flags);
1401		1711
1402	if (dec.json.cb_object \|\| dec.json.cb_sk_object)	1712	if (dec.json.cb_object \|\| dec.json.cb_sk_object)
1403	dec.json.flags \|= F_HOOK;	1713	dec.json.flags \|= F_HOOK;
1404		1714
1405	*dec.end = 0; // this should basically be a nop, too, but make sure it's there	1715	*dec.end = 0; // this should basically be a nop, too, but make sure it's there
1406		1716
1407	decode_ws (&dec);	1717	decode_ws (&dec);
1408	sv = decode_sv (&dec);	1718	sv = decode_sv (&dec);
		1719
		1720	if (offset_return)
		1721	*offset_return = dec.cur;
1409		1722
1410	if (!(offset_return \|\| !sv))	1723	if (!(offset_return \|\| !sv))
1411	{	1724	{
1412	// check for trailing garbage	1725	// check for trailing garbage
1413	decode_ws (&dec);	1726	decode_ws (&dec);
…		…
1416	{	1729	{
1417	dec.err = "garbage after JSON object";	1730	dec.err = "garbage after JSON object";
1418	SvREFCNT_dec (sv);	1731	SvREFCNT_dec (sv);
1419	sv = 0;	1732	sv = 0;
1420	}	1733	}
1421	}
1422
1423	if (offset_return \|\| !sv)
1424	{
1425	offset = dec.json.flags & F_UTF8
1426	? dec.cur - SvPVX (string)
1427	: utf8_distance (dec.cur, SvPVX (string));
1428
1429	if (offset_return)
1430	*offset_return = offset;
1431	}	1734	}
1432		1735
1433	if (!sv)	1736	if (!sv)
1434	{	1737	{
1435	SV *uni = sv_newmortal ();	1738	SV *uni = sv_newmortal ();
…		…
1441	SAVEVPTR (PL_curcop);	1744	SAVEVPTR (PL_curcop);
1442	PL_curcop = &cop;	1745	PL_curcop = &cop;
1443	pv_uni_display (uni, dec.cur, dec.end - dec.cur, 20, UNI_DISPLAY_QQ);	1746	pv_uni_display (uni, dec.cur, dec.end - dec.cur, 20, UNI_DISPLAY_QQ);
1444	LEAVE;	1747	LEAVE;
1445		1748
1446	croak ("%s, at character offset %d [\"%s\"]",	1749	croak ("%s, at character offset %d (before \"%s\")",
1447	dec.err,	1750	dec.err,
1448	(int)offset,	1751	(int)ptr_to_index (string, dec.cur),
1449	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");	1752	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");
1450	}	1753	}
1451		1754
1452	sv = sv_2mortal (sv);	1755	sv = sv_2mortal (sv);
1453		1756
1454	if (!(dec.json.flags & F_ALLOW_NONREF) && !SvROK (sv))	1757	if (!(dec.json.flags & F_ALLOW_NONREF) && !SvROK (sv))
1455	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");	1758	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");
1456		1759
1457	return sv;	1760	return sv;
		1761	}
		1762
		1763	/////////////////////////////////////////////////////////////////////////////
		1764	// incremental parser
		1765
		1766	static void
		1767	incr_parse (JSON *self)
		1768	{
		1769	const char *p = SvPVX (self->incr_text) + self->incr_pos;
		1770
		1771	// the state machine here is a bit convoluted and could be simplified a lot
		1772	// but this would make it slower, so...
		1773
		1774	for (;;)
		1775	{
		1776	//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
		1777	switch (self->incr_mode)
		1778	{
		1779	// only used for initial whitespace skipping
		1780	case INCR_M_WS:
		1781	for (;;)
		1782	{
		1783	if (*p > 0x20)
		1784	{
		1785	if (*p == '#')
		1786	{
		1787	self->incr_mode = INCR_M_C0;
		1788	goto incr_m_c;
		1789	}
		1790	else
		1791	{
		1792	self->incr_mode = INCR_M_JSON;
		1793	goto incr_m_json;
		1794	}
		1795	}
		1796	else if (!*p)
		1797	goto interrupt;
		1798
		1799	++p;
		1800	}
		1801
		1802	// skip a single char inside a string (for \\-processing)
		1803	case INCR_M_BS:
		1804	if (!*p)
		1805	goto interrupt;
		1806
		1807	++p;
		1808	self->incr_mode = INCR_M_STR;
		1809	goto incr_m_str;
		1810
		1811	// inside #-style comments
		1812	case INCR_M_C0:
		1813	case INCR_M_C1:
		1814	incr_m_c:
		1815	for (;;)
		1816	{
		1817	if (*p == '\n')
		1818	{
		1819	self->incr_mode = self->incr_mode == INCR_M_C0 ? INCR_M_WS : INCR_M_JSON;
		1820	break;
		1821	}
		1822	else if (!*p)
		1823	goto interrupt;
		1824
		1825	++p;
		1826	}
		1827
		1828	break;
		1829
		1830	// inside a string
		1831	case INCR_M_STR:
		1832	incr_m_str:
		1833	for (;;)
		1834	{
		1835	if (*p == '"')
		1836	{
		1837	++p;
		1838	self->incr_mode = INCR_M_JSON;
		1839
		1840	if (!self->incr_nest)
		1841	goto interrupt;
		1842
		1843	goto incr_m_json;
		1844	}
		1845	else if (*p == '\\')
		1846	{
		1847	++p; // "virtually" consumes character after \
		1848
		1849	if (!*p) // if at end of string we have to switch modes
		1850	{
		1851	self->incr_mode = INCR_M_BS;
		1852	goto interrupt;
		1853	}
		1854	}
		1855	else if (!*p)
		1856	goto interrupt;
		1857
		1858	++p;
		1859	}
		1860
		1861	// after initial ws, outside string
		1862	case INCR_M_JSON:
		1863	incr_m_json:
		1864	for (;;)
		1865	{
		1866	switch (*p++)
		1867	{
		1868	case 0:
		1869	--p;
		1870	goto interrupt;
		1871
		1872	case 0x09:
		1873	case 0x0a:
		1874	case 0x0d:
		1875	case 0x20:
		1876	if (!self->incr_nest)
		1877	{
		1878	--p; // do not eat the whitespace, let the next round do it
		1879	goto interrupt;
		1880	}
		1881	break;
		1882
		1883	case '"':
		1884	self->incr_mode = INCR_M_STR;
		1885	goto incr_m_str;
		1886
		1887	case '[':
		1888	case '{':
		1889	case '(':
		1890	if (++self->incr_nest > self->max_depth)
		1891	croak (ERR_NESTING_EXCEEDED);
		1892	break;
		1893
		1894	case ']':
		1895	case '}':
		1896	if (--self->incr_nest <= 0)
		1897	goto interrupt;
		1898	break;
		1899
		1900	case ')':
		1901	--self->incr_nest;
		1902	break;
		1903
		1904	case '#':
		1905	self->incr_mode = INCR_M_C1;
		1906	goto incr_m_c;
		1907	}
		1908	}
		1909	}
		1910
		1911	modechange:
		1912	;
		1913	}
		1914
		1915	interrupt:
		1916	self->incr_pos = p - SvPVX (self->incr_text);
		1917	//printf ("interrupt<%.*s>\n", self->incr_pos, SvPVX(self->incr_text));//D
		1918	//printf ("return pos %d mode %d nest %d\n", self->incr_pos, self->incr_mode, self->incr_nest);//D
1458	}	1919	}
1459		1920
1460	/////////////////////////////////////////////////////////////////////////////	1921	/////////////////////////////////////////////////////////////////////////////
1461	// XS interface functions	1922	// XS interface functions
1462		1923
…		…
1471	i >= '0' && i <= '9' ? i - '0'	1932	i >= '0' && i <= '9' ? i - '0'
1472	: i >= 'a' && i <= 'f' ? i - 'a' + 10	1933	: i >= 'a' && i <= 'f' ? i - 'a' + 10
1473	: i >= 'A' && i <= 'F' ? i - 'A' + 10	1934	: i >= 'A' && i <= 'F' ? i - 'A' + 10
1474	: -1;	1935	: -1;
1475		1936
1476	json_stash = gv_stashpv ("JSON::XS" , 1);	1937	json_stash = gv_stashpv ("JSON::XS" , 1);
1477	json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1);	1938	types_boolean_stash = gv_stashpv ("Types::Serialiser::Boolean", 1);
1478		1939
1479	json_true = get_sv ("JSON::XS::true" , 1); SvREADONLY_on (json_true );	1940	types_true = get_bool ("Types::Serialiser::true");
1480	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);	1941	types_false = get_bool ("Types::Serialiser::false");
		1942
		1943	sv_json = newSVpv ("JSON", 0);
		1944	SvREADONLY_on (sv_json);
		1945
		1946	CvNODEBUG_on (get_cv ("JSON::XS::incr_text", 0)); /* the debugger completely breaks lvalue subs */
1481	}	1947	}
1482		1948
1483	PROTOTYPES: DISABLE	1949	PROTOTYPES: DISABLE
1484		1950
1485	void CLONE (...)	1951	void CLONE (...)
1486	CODE:	1952	CODE:
1487	json_stash = 0;	1953	json_stash = 0;
1488	json_boolean_stash = 0;	1954	types_boolean_stash = 0;
1489		1955
1490	void new (char *klass)	1956	void new (char *klass)
1491	PPCODE:	1957	PPCODE:
1492	{	1958	{
1493	SV *pv = NEWSV (0, sizeof (JSON));	1959	SV *pv = NEWSV (0, sizeof (JSON));
1494	SvPOK_only (pv);	1960	SvPOK_only (pv);
1495	Zero (SvPVX (pv), 1, JSON);	1961	json_init ((JSON *)SvPVX (pv));
1496	((JSON *)SvPVX (pv))->flags = F_DEFAULT;
1497	XPUSHs (sv_2mortal (sv_bless (	1962	XPUSHs (sv_2mortal (sv_bless (
1498	newRV_noinc (pv),	1963	newRV_noinc (pv),
1499	strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1)	1964	strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1)
1500	)));	1965	)));
1501	}	1966	}
…		…
1513	allow_nonref = F_ALLOW_NONREF	1978	allow_nonref = F_ALLOW_NONREF
1514	shrink = F_SHRINK	1979	shrink = F_SHRINK
1515	allow_blessed = F_ALLOW_BLESSED	1980	allow_blessed = F_ALLOW_BLESSED
1516	convert_blessed = F_CONV_BLESSED	1981	convert_blessed = F_CONV_BLESSED
1517	relaxed = F_RELAXED	1982	relaxed = F_RELAXED
		1983	allow_unknown = F_ALLOW_UNKNOWN
		1984	allow_tags = F_ALLOW_TAGS
1518	PPCODE:	1985	PPCODE:
1519	{	1986	{
1520	if (enable)	1987	if (enable)
1521	self->flags \|= ix;	1988	self->flags \|= ix;
1522	else	1989	else
…		…
1537	get_allow_nonref = F_ALLOW_NONREF	2004	get_allow_nonref = F_ALLOW_NONREF
1538	get_shrink = F_SHRINK	2005	get_shrink = F_SHRINK
1539	get_allow_blessed = F_ALLOW_BLESSED	2006	get_allow_blessed = F_ALLOW_BLESSED
1540	get_convert_blessed = F_CONV_BLESSED	2007	get_convert_blessed = F_CONV_BLESSED
1541	get_relaxed = F_RELAXED	2008	get_relaxed = F_RELAXED
		2009	get_allow_unknown = F_ALLOW_UNKNOWN
		2010	get_allow_tags = F_ALLOW_TAGS
1542	PPCODE:	2011	PPCODE:
1543	XPUSHs (boolSV (self->flags & ix));	2012	XPUSHs (boolSV (self->flags & ix));
1544		2013
1545	void max_depth (JSON *self, UV max_depth = 0x80000000UL)	2014	void max_depth (JSON *self, U32 max_depth = 0x80000000UL)
1546	PPCODE:	2015	PPCODE:
1547	{	2016	self->max_depth = max_depth;
1548	UV log2 = 0;
1549
1550	if (max_depth > 0x80000000UL) max_depth = 0x80000000UL;
1551
1552	while ((1UL << log2) < max_depth)
1553	++log2;
1554
1555	self->flags = self->flags & ~F_MAXDEPTH \| (log2 << S_MAXDEPTH);
1556
1557	XPUSHs (ST (0));	2017	XPUSHs (ST (0));
1558	}
1559		2018
1560	U32 get_max_depth (JSON *self)	2019	U32 get_max_depth (JSON *self)
1561	CODE:	2020	CODE:
1562	RETVAL = DEC_DEPTH (self->flags);	2021	RETVAL = self->max_depth;
1563	OUTPUT:	2022	OUTPUT:
1564	RETVAL	2023	RETVAL
1565		2024
1566	void max_size (JSON *self, UV max_size = 0)	2025	void max_size (JSON *self, U32 max_size = 0)
1567	PPCODE:	2026	PPCODE:
1568	{	2027	self->max_size = max_size;
1569	UV log2 = 0;
1570
1571	if (max_size > 0x80000000UL) max_size = 0x80000000UL;
1572	if (max_size == 1) max_size = 2;
1573
1574	while ((1UL << log2) < max_size)
1575	++log2;
1576
1577	self->flags = self->flags & ~F_MAXSIZE \| (log2 << S_MAXSIZE);
1578
1579	XPUSHs (ST (0));	2028	XPUSHs (ST (0));
1580	}
1581		2029
1582	int get_max_size (JSON *self)	2030	int get_max_size (JSON *self)
1583	CODE:	2031	CODE:
1584	RETVAL = DEC_SIZE (self->flags);	2032	RETVAL = self->max_size;
1585	OUTPUT:	2033	OUTPUT:
1586	RETVAL	2034	RETVAL
1587		2035
1588	void filter_json_object (JSON self, SV cb = &PL_sv_undef)	2036	void filter_json_object (JSON self, SV cb = &PL_sv_undef)
1589	PPCODE:	2037	PPCODE:
…		…
1595	}	2043	}
1596		2044
1597	void filter_json_single_key_object (JSON self, SV key, SV *cb = &PL_sv_undef)	2045	void filter_json_single_key_object (JSON self, SV key, SV *cb = &PL_sv_undef)
1598	PPCODE:	2046	PPCODE:
1599	{	2047	{
1600	if (!self->cb_sk_object)	2048	if (!self->cb_sk_object)
1601	self->cb_sk_object = newHV ();	2049	self->cb_sk_object = newHV ();
1602		2050
1603	if (SvOK (cb))	2051	if (SvOK (cb))
1604	hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0);	2052	hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0);
1605	else	2053	else
…		…
1616	XPUSHs (ST (0));	2064	XPUSHs (ST (0));
1617	}	2065	}
1618		2066
1619	void encode (JSON self, SV scalar)	2067	void encode (JSON self, SV scalar)
1620	PPCODE:	2068	PPCODE:
1621	XPUSHs (encode_json (scalar, self));	2069	PUTBACK; scalar = encode_json (scalar, self); SPAGAIN;
		2070	XPUSHs (scalar);
1622		2071
1623	void decode (JSON self, SV jsonstr)	2072	void decode (JSON self, SV jsonstr)
1624	PPCODE:	2073	PPCODE:
1625	XPUSHs (decode_json (jsonstr, self, 0));	2074	PUTBACK; jsonstr = decode_json (jsonstr, self, 0); SPAGAIN;
		2075	XPUSHs (jsonstr);
1626		2076
1627	void decode_prefix (JSON self, SV jsonstr)	2077	void decode_prefix (JSON self, SV jsonstr)
1628	PPCODE:	2078	PPCODE:
1629	{	2079	{
1630	UV offset;	2080	SV *sv;
		2081	char *offset;
		2082	PUTBACK; sv = decode_json (jsonstr, self, &offset); SPAGAIN;
1631	EXTEND (SP, 2);	2083	EXTEND (SP, 2);
1632	PUSHs (decode_json (jsonstr, self, &offset));	2084	PUSHs (sv);
1633	PUSHs (sv_2mortal (newSVuv (offset)));	2085	PUSHs (sv_2mortal (newSVuv (ptr_to_index (jsonstr, offset))));
		2086	}
		2087
		2088	void incr_parse (JSON self, SV jsonstr = 0)
		2089	PPCODE:
		2090	{
		2091	if (!self->incr_text)
		2092	self->incr_text = newSVpvn ("", 0);
		2093
		2094	/* if utf8-ness doesn't match the decoder, need to upgrade/downgrade */
		2095	if (!DECODE_WANTS_OCTETS (self) == !SvUTF8 (self->incr_text))
		2096	if (DECODE_WANTS_OCTETS (self))
		2097	{
		2098	if (self->incr_pos)
		2099	self->incr_pos = utf8_length ((U8 *)SvPVX (self->incr_text),
		2100	(U8 *)SvPVX (self->incr_text) + self->incr_pos);
		2101
		2102	sv_utf8_downgrade (self->incr_text, 0);
		2103	}
		2104	else
		2105	{
		2106	sv_utf8_upgrade (self->incr_text);
		2107
		2108	if (self->incr_pos)
		2109	self->incr_pos = utf8_hop ((U8 *)SvPVX (self->incr_text), self->incr_pos)
		2110	- (U8 *)SvPVX (self->incr_text);
		2111	}
		2112
		2113	// append data, if any
		2114	if (jsonstr)
		2115	{
		2116	/* make sure both strings have same encoding */
		2117	if (SvUTF8 (jsonstr) != SvUTF8 (self->incr_text))
		2118	if (SvUTF8 (jsonstr))
		2119	sv_utf8_downgrade (jsonstr, 0);
		2120	else
		2121	sv_utf8_upgrade (jsonstr);
		2122
		2123	/* and then just blindly append */
		2124	{
		2125	STRLEN len;
		2126	const char *str = SvPV (jsonstr, len);
		2127	STRLEN cur = SvCUR (self->incr_text);
		2128
		2129	if (SvLEN (self->incr_text) <= cur + len)
		2130	SvGROW (self->incr_text, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
		2131
		2132	Move (str, SvEND (self->incr_text), len, char);
		2133	SvCUR_set (self->incr_text, SvCUR (self->incr_text) + len);
		2134	*SvEND (self->incr_text) = 0; // this should basically be a nop, too, but make sure it's there
		2135	}
		2136	}
		2137
		2138	if (GIMME_V != G_VOID)
		2139	do
		2140	{
		2141	SV *sv;
		2142	char *offset;
		2143
		2144	if (!INCR_DONE (self))
		2145	{
		2146	incr_parse (self);
		2147
		2148	if (self->incr_pos > self->max_size && self->max_size)
		2149	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",
		2150	(unsigned long)self->incr_pos, (unsigned long)self->max_size);
		2151
		2152	if (!INCR_DONE (self))
		2153	{
		2154	// as an optimisation, do not accumulate white space in the incr buffer
		2155	if (self->incr_mode == INCR_M_WS && self->incr_pos)
		2156	{
		2157	self->incr_pos = 0;
		2158	SvCUR_set (self->incr_text, 0);
		2159	}
		2160
		2161	break;
		2162	}
		2163	}
		2164
		2165	PUTBACK; sv = decode_json (self->incr_text, self, &offset); SPAGAIN;
		2166	XPUSHs (sv);
		2167
		2168	self->incr_pos -= offset - SvPVX (self->incr_text);
		2169	self->incr_nest = 0;
		2170	self->incr_mode = 0;
		2171
		2172	sv_chop (self->incr_text, offset);
		2173	}
		2174	while (GIMME_V == G_ARRAY);
		2175	}
		2176
		2177	SV incr_text (JSON self)
		2178	ATTRS: lvalue
		2179	CODE:
		2180	{
		2181	if (self->incr_pos)
		2182	croak ("incr_text can not be called when the incremental parser already started parsing");
		2183
		2184	RETVAL = self->incr_text ? SvREFCNT_inc (self->incr_text) : &PL_sv_undef;
		2185	}
		2186	OUTPUT:
		2187	RETVAL
		2188
		2189	void incr_skip (JSON *self)
		2190	CODE:
		2191	{
		2192	if (self->incr_pos)
		2193	{
		2194	sv_chop (self->incr_text, SvPV_nolen (self->incr_text) + self->incr_pos);
		2195	self->incr_pos = 0;
		2196	self->incr_nest = 0;
		2197	self->incr_mode = 0;
		2198	}
		2199	}
		2200
		2201	void incr_reset (JSON *self)
		2202	CODE:
		2203	{
		2204	SvREFCNT_dec (self->incr_text);
		2205	self->incr_text = 0;
		2206	self->incr_pos = 0;
		2207	self->incr_nest = 0;
		2208	self->incr_mode = 0;
1634	}	2209	}
1635		2210
1636	void DESTROY (JSON *self)	2211	void DESTROY (JSON *self)
1637	CODE:	2212	CODE:
1638	SvREFCNT_dec (self->cb_sk_object);	2213	SvREFCNT_dec (self->cb_sk_object);
1639	SvREFCNT_dec (self->cb_object);	2214	SvREFCNT_dec (self->cb_object);
		2215	SvREFCNT_dec (self->incr_text);
1640		2216
1641	PROTOTYPES: ENABLE	2217	PROTOTYPES: ENABLE
1642		2218
1643	void encode_json (SV *scalar)	2219	void encode_json (SV *scalar)
1644	PPCODE:	2220	PPCODE:
1645	{	2221	{
1646	JSON json = { F_DEFAULT \| F_UTF8 };	2222	JSON json;
1647	XPUSHs (encode_json (scalar, &json));	2223	json_init (&json);
		2224	json.flags \|= F_UTF8;
		2225	PUTBACK; scalar = encode_json (scalar, &json); SPAGAIN;
		2226	XPUSHs (scalar);
1648	}	2227	}
1649		2228
1650	void decode_json (SV *jsonstr)	2229	void decode_json (SV *jsonstr)
1651	PPCODE:	2230	PPCODE:
1652	{	2231	{
1653	JSON json = { F_DEFAULT \| F_UTF8 };	2232	JSON json;
1654	XPUSHs (decode_json (jsonstr, &json, 0));	2233	json_init (&json);
		2234	json.flags \|= F_UTF8;
		2235	PUTBACK; jsonstr = decode_json (jsonstr, &json, 0); SPAGAIN;
		2236	XPUSHs (jsonstr);
1655	}	2237	}
1656		2238

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Comparing JSON-XS/XS.xs (file contents): Revision 1.74 by root, Wed Mar 19 15:17:53 2008 UTC vs. Revision 1.125 by root, Sun Feb 21 15:37:53 2016 UTC

Diff Legend

Comparing JSON-XS/XS.xs (file contents):
Revision 1.74 by root, Wed Mar 19 15:17:53 2008 UTC vs.
Revision 1.125 by root, Sun Feb 21 15:37:53 2016 UTC