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

Comparing JSON-XS/XS.xs (file contents):
Revision 1.40 by root, Tue Jun 12 01:27:02 2007 UTC vs.
Revision 1.68 by root, Thu Nov 29 08:37:11 2007 UTC

…		…
1	#include "EXTERN.h"	1	#include "EXTERN.h"
2	#include "perl.h"	2	#include "perl.h"
3	#include "XSUB.h"	3	#include "XSUB.h"
4		4
5	#include "assert.h"	5	#include <assert.h>
6	#include "string.h"	6	#include <string.h>
7	#include "stdlib.h"	7	#include <stdlib.h>
8	#include "stdio.h"	8	#include <stdio.h>
		9	#include <float.h>
9		10
10	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	11	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)
11	# define snprintf _snprintf // C compilers have this in stdio.h	12	# define snprintf _snprintf // C compilers have this in stdio.h
12	#endif	13	#endif
13		14
		15	// 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	#ifndef UTF8_MAXBYTES
		18	# define UTF8_MAXBYTES 13
		19	#endif
		20
14	#define F_ASCII 0x00000001UL	21	#define F_ASCII 0x00000001UL
15	#define F_LATIN1 0x00000002UL	22	#define F_LATIN1 0x00000002UL
16	#define F_UTF8 0x00000004UL	23	#define F_UTF8 0x00000004UL
17	#define F_INDENT 0x00000008UL	24	#define F_INDENT 0x00000008UL
18	#define F_CANONICAL 0x00000010UL	25	#define F_CANONICAL 0x00000010UL
19	#define F_SPACE_BEFORE 0x00000020UL	26	#define F_SPACE_BEFORE 0x00000020UL
20	#define F_SPACE_AFTER 0x00000040UL	27	#define F_SPACE_AFTER 0x00000040UL
21	#define F_ALLOW_NONREF 0x00000100UL	28	#define F_ALLOW_NONREF 0x00000100UL
22	#define F_SHRINK 0x00000200UL	29	#define F_SHRINK 0x00000200UL
		30	#define F_ALLOW_BLESSED 0x00000400UL
		31	#define F_CONV_BLESSED 0x00000800UL
		32	#define F_RELAXED 0x00001000UL
		33
23	#define F_MAXDEPTH 0xf8000000UL	34	#define F_MAXDEPTH 0xf8000000UL
24	#define S_MAXDEPTH 27	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
25		39
26	#define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH))	40	#define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH))
27		41	#define DEC_SIZE(flags) (1UL << ((flags & F_MAXSIZE ) >> S_MAXSIZE ))
28	// F_SELFCONVERT? <=> to_json/toJson
29	// F_BLESSED? <=> { $__class__$ => }
30		42
31	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER	43	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER
32	#define F_DEFAULT (9UL << S_MAXDEPTH)	44	#define F_DEFAULT (9UL << S_MAXDEPTH)
33		45
34	#define INIT_SIZE 32 // initial scalar size to be allocated	46	#define INIT_SIZE 32 // initial scalar size to be allocated
48	#endif	60	#endif
49		61
50	#define expect_false(expr) expect ((expr) != 0, 0)	62	#define expect_false(expr) expect ((expr) != 0, 0)
51	#define expect_true(expr) expect ((expr) != 0, 1)	63	#define expect_true(expr) expect ((expr) != 0, 1)
52		64
		65	#ifdef USE_ITHREADS
		66	# define JSON_SLOW 1
		67	# define JSON_STASH (json_stash ? json_stash : gv_stashpv ("JSON::XS", 1))
		68	#else
		69	# define JSON_SLOW 0
		70	# define JSON_STASH json_stash
		71	#endif
		72
53	static HV *json_stash; // JSON::XS::	73	static HV json_stash, json_boolean_stash; // JSON::XS::
		74	static SV json_true, json_false;
		75
		76	typedef struct {
		77	U32 flags;
		78	SV *cb_object;
		79	HV *cb_sk_object;
		80	} JSON;
54		81
55	/////////////////////////////////////////////////////////////////////////////	82	/////////////////////////////////////////////////////////////////////////////
56	// utility functions	83	// utility functions
57		84
58	static UV *	85	inline void
59	SvJSON (SV *sv)
60	{
61	if (!(SvROK (sv) && SvOBJECT (SvRV (sv)) && SvSTASH (SvRV (sv)) == json_stash))
62	croak ("object is not of type JSON::XS");
63
64	return &SvUVX (SvRV (sv));
65	}
66
67	static void
68	shrink (SV *sv)	86	shrink (SV *sv)
69	{	87	{
70	sv_utf8_downgrade (sv, 1);	88	sv_utf8_downgrade (sv, 1);
71	if (SvLEN (sv) > SvCUR (sv) + 1)	89	if (SvLEN (sv) > SvCUR (sv) + 1)
72	{	90	{
…		…
107	typedef struct	125	typedef struct
108	{	126	{
109	char *cur; // SvPVX (sv) + current output position	127	char *cur; // SvPVX (sv) + current output position
110	char *end; // SvEND (sv)	128	char *end; // SvEND (sv)
111	SV *sv; // result scalar	129	SV *sv; // result scalar
112	U32 flags; // F_*	130	JSON json;
113	U32 indent; // indentation level	131	U32 indent; // indentation level
114	U32 maxdepth; // max. indentation/recursion level	132	U32 maxdepth; // max. indentation/recursion level
115	} enc_t;	133	} enc_t;
116		134
117	inline void	135	inline void
…		…
191	}	209	}
192		210
193	if (uch > 0x10FFFFUL)	211	if (uch > 0x10FFFFUL)
194	croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);	212	croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);
195		213
196	if (uch < 0x80 \|\| enc->flags & F_ASCII \|\| (enc->flags & F_LATIN1 && uch > 0xFF))	214	if (uch < 0x80 \|\| enc->json.flags & F_ASCII \|\| (enc->json.flags & F_LATIN1 && uch > 0xFF))
197	{	215	{
198	if (uch > 0xFFFFUL)	216	if (uch > 0xFFFFUL)
199	{	217	{
200	need (enc, len += 11);	218	need (enc, len += 11);
201	sprintf (enc->cur, "\\u%04x\\u%04x",	219	sprintf (enc->cur, "\\u%04x\\u%04x",
…		…
215	*enc->cur++ = hexdigit [(uch >> 0) & 15];	233	*enc->cur++ = hexdigit [(uch >> 0) & 15];
216	}	234	}
217		235
218	str += clen;	236	str += clen;
219	}	237	}
220	else if (enc->flags & F_LATIN1)	238	else if (enc->json.flags & F_LATIN1)
221	{	239	{
222	*enc->cur++ = uch;	240	*enc->cur++ = uch;
223	str += clen;	241	str += clen;
224	}	242	}
225	else if (is_utf8)	243	else if (is_utf8)
…		…
246	}	264	}
247		265
248	inline void	266	inline void
249	encode_indent (enc_t *enc)	267	encode_indent (enc_t *enc)
250	{	268	{
251	if (enc->flags & F_INDENT)	269	if (enc->json.flags & F_INDENT)
252	{	270	{
253	int spaces = enc->indent * INDENT_STEP;	271	int spaces = enc->indent * INDENT_STEP;
254		272
255	need (enc, spaces);	273	need (enc, spaces);
256	memset (enc->cur, ' ', spaces);	274	memset (enc->cur, ' ', spaces);
…		…
266	}	284	}
267		285
268	inline void	286	inline void
269	encode_nl (enc_t *enc)	287	encode_nl (enc_t *enc)
270	{	288	{
271	if (enc->flags & F_INDENT)	289	if (enc->json.flags & F_INDENT)
272	{	290	{
273	need (enc, 1);	291	need (enc, 1);
274	encode_ch (enc, '\n');	292	encode_ch (enc, '\n');
275	}	293	}
276	}	294	}
…		…
278	inline void	296	inline void
279	encode_comma (enc_t *enc)	297	encode_comma (enc_t *enc)
280	{	298	{
281	encode_ch (enc, ',');	299	encode_ch (enc, ',');
282		300
283	if (enc->flags & F_INDENT)	301	if (enc->json.flags & F_INDENT)
284	encode_nl (enc);	302	encode_nl (enc);
285	else if (enc->flags & F_SPACE_AFTER)	303	else if (enc->json.flags & F_SPACE_AFTER)
286	encode_space (enc);	304	encode_space (enc);
287	}	305	}
288		306
289	static void encode_sv (enc_t enc, SV sv);	307	static void encode_sv (enc_t enc, SV sv);
290		308
…		…
294	int i, len = av_len (av);	312	int i, len = av_len (av);
295		313
296	if (enc->indent >= enc->maxdepth)	314	if (enc->indent >= enc->maxdepth)
297	croak ("data structure too deep (hit recursion limit)");	315	croak ("data structure too deep (hit recursion limit)");
298		316
299	encode_ch (enc, '['); encode_nl (enc);	317	encode_ch (enc, '[');
300	++enc->indent;	318
		319	if (len >= 0)
		320	{
		321	encode_nl (enc); ++enc->indent;
301		322
302	for (i = 0; i <= len; ++i)	323	for (i = 0; i <= len; ++i)
303	{	324	{
		325	SV **svp = av_fetch (av, i, 0);
		326
304	encode_indent (enc);	327	encode_indent (enc);
305	encode_sv (enc, *av_fetch (av, i, 0));
306		328
		329	if (svp)
		330	encode_sv (enc, *svp);
		331	else
		332	encode_str (enc, "null", 4, 0);
		333
307	if (i < len)	334	if (i < len)
308	encode_comma (enc);	335	encode_comma (enc);
309	}	336	}
310		337
		338	encode_nl (enc); --enc->indent; encode_indent (enc);
		339	}
		340
311	encode_nl (enc);	341	encode_ch (enc, ']');
312
313	--enc->indent;
314	encode_indent (enc); encode_ch (enc, ']');
315	}	342	}
316		343
317	static void	344	static void
318	encode_he (enc_t enc, HE he)	345	encode_hk (enc_t enc, HE he)
319	{	346	{
320	encode_ch (enc, '"');	347	encode_ch (enc, '"');
321		348
322	if (HeKLEN (he) == HEf_SVKEY)	349	if (HeKLEN (he) == HEf_SVKEY)
323	{	350	{
…		…
333	else	360	else
334	encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he));	361	encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he));
335		362
336	encode_ch (enc, '"');	363	encode_ch (enc, '"');
337		364
338	if (enc->flags & F_SPACE_BEFORE) encode_space (enc);	365	if (enc->json.flags & F_SPACE_BEFORE) encode_space (enc);
339	encode_ch (enc, ':');	366	encode_ch (enc, ':');
340	if (enc->flags & F_SPACE_AFTER ) encode_space (enc);	367	if (enc->json.flags & F_SPACE_AFTER ) encode_space (enc);
341	encode_sv (enc, HeVAL (he));
342	}	368	}
343		369
344	// compare hash entries, used when all keys are bytestrings	370	// compare hash entries, used when all keys are bytestrings
345	static int	371	static int
346	he_cmp_fast (const void a_, const void b_)	372	he_cmp_fast (const void a_, const void b_)
…		…
351	HE b = (HE **)b_;	377	HE b = (HE **)b_;
352		378
353	STRLEN la = HeKLEN (a);	379	STRLEN la = HeKLEN (a);
354	STRLEN lb = HeKLEN (b);	380	STRLEN lb = HeKLEN (b);
355		381
356	if (!(cmp = memcmp (HeKEY (a), HeKEY (b), la < lb ? la : lb)))	382	if (!(cmp = memcmp (HeKEY (b), HeKEY (a), lb < la ? lb : la)))
357	cmp = la - lb;	383	cmp = lb - la;
358		384
359	return cmp;	385	return cmp;
360	}	386	}
361		387
362	// compare hash entries, used when some keys are sv's or utf-x	388	// compare hash entries, used when some keys are sv's or utf-x
363	static int	389	static int
364	he_cmp_slow (const void a, const void b)	390	he_cmp_slow (const void a, const void b)
365	{	391	{
366	return sv_cmp (HeSVKEY_force ((HE )a), HeSVKEY_force ((HE **)b));	392	return sv_cmp (HeSVKEY_force ((HE )b), HeSVKEY_force ((HE **)a));
367	}	393	}
368		394
369	static void	395	static void
370	encode_hv (enc_t enc, HV hv)	396	encode_hv (enc_t enc, HV hv)
371	{	397	{
		398	HE *he;
372	int count, i;	399	int count;
373		400
374	if (enc->indent >= enc->maxdepth)	401	if (enc->indent >= enc->maxdepth)
375	croak ("data structure too deep (hit recursion limit)");	402	croak ("data structure too deep (hit recursion limit)");
376		403
377	encode_ch (enc, '{'); encode_nl (enc); ++enc->indent;	404	encode_ch (enc, '{');
378		405
379	if ((count = hv_iterinit (hv)))
380	{
381	// for canonical output we have to sort by keys first	406	// for canonical output we have to sort by keys first
382	// actually, this is mostly due to the stupid so-called	407	// actually, this is mostly due to the stupid so-called
383	// security workaround added somewhere in 5.8.x.	408	// security workaround added somewhere in 5.8.x.
384	// that randomises hash orderings	409	// that randomises hash orderings
385	if (enc->flags & F_CANONICAL)	410	if (enc->json.flags & F_CANONICAL)
		411	{
		412	int count = hv_iterinit (hv);
		413
		414	if (SvMAGICAL (hv))
386	{	415	{
		416	// need to count by iterating. could improve by dynamically building the vector below
		417	// but I don't care for the speed of this special case.
		418	// note also that we will run into undefined behaviour when the two iterations
		419	// do not result in the same count, something I might care for in some later release.
		420
		421	count = 0;
		422	while (hv_iternext (hv))
		423	++count;
		424
		425	hv_iterinit (hv);
		426	}
		427
		428	if (count)
		429	{
387	int fast = 1;	430	int i, fast = 1;
388	HE *he;
389	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	431	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)
390	HE *hes = _alloca (count sizeof (HE));	432	HE *hes = _alloca (count sizeof (HE));
391	#else	433	#else
392	HE *hes [count]; // if your compiler dies here, you need to enable C99 mode	434	HE *hes [count]; // if your compiler dies here, you need to enable C99 mode
393	#endif	435	#endif
…		…
420		462
421	FREETMPS;	463	FREETMPS;
422	LEAVE;	464	LEAVE;
423	}	465	}
424		466
425	for (i = 0; i < count; ++i)	467	encode_nl (enc); ++enc->indent;
		468
		469	while (count--)
426	{	470	{
427	encode_indent (enc);	471	encode_indent (enc);
		472	he = hes [count];
428	encode_he (enc, hes [i]);	473	encode_hk (enc, he);
		474	encode_sv (enc, expect_false (SvMAGICAL (hv)) ? hv_iterval (hv, he) : HeVAL (he));
429		475
430	if (i < count - 1)	476	if (count)
431	encode_comma (enc);	477	encode_comma (enc);
432	}	478	}
433		479
		480	encode_nl (enc); --enc->indent; encode_indent (enc);
		481	}
		482	}
		483	else
		484	{
		485	if (hv_iterinit (hv) \|\| SvMAGICAL (hv))
		486	if ((he = hv_iternext (hv)))
		487	{
		488	encode_nl (enc); ++enc->indent;
		489
		490	for (;;)
		491	{
434	encode_nl (enc);	492	encode_indent (enc);
		493	encode_hk (enc, he);
		494	encode_sv (enc, expect_false (SvMAGICAL (hv)) ? hv_iterval (hv, he) : HeVAL (he));
		495
		496	if (!(he = hv_iternext (hv)))
		497	break;
		498
		499	encode_comma (enc);
		500	}
		501
		502	encode_nl (enc); --enc->indent; encode_indent (enc);
		503	}
		504	}
		505
		506	encode_ch (enc, '}');
		507	}
		508
		509	// encode objects, arrays and special \0=false and \1=true values.
		510	static void
		511	encode_rv (enc_t enc, SV sv)
		512	{
		513	svtype svt;
		514
		515	SvGETMAGIC (sv);
		516	svt = SvTYPE (sv);
		517
		518	if (expect_false (SvOBJECT (sv)))
		519	{
		520	HV *stash = !JSON_SLOW \|\| json_boolean_stash
		521	? json_boolean_stash
		522	: gv_stashpv ("JSON::XS::Boolean", 1);
		523
		524	if (SvSTASH (sv) == stash)
		525	{
		526	if (SvIV (sv))
		527	encode_str (enc, "true", 4, 0);
		528	else
		529	encode_str (enc, "false", 5, 0);
435	}	530	}
436	else	531	else
437	{	532	{
438	HE *he = hv_iternext (hv);	533	#if 0
439		534	if (0 && sv_derived_from (rv, "JSON::Literal"))
440	for (;;)
441	{	535	{
442	encode_indent (enc);	536	// not yet
443	encode_he (enc, he);
444
445	if (!(he = hv_iternext (hv)))
446	break;
447
448	encode_comma (enc);
449	}	537	}
		538	#endif
		539	if (enc->json.flags & F_CONV_BLESSED)
		540	{
		541	// we re-bless the reference to get overload and other niceties right
		542	GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 0);
450		543
		544	if (to_json)
		545	{
		546	dSP;
		547
		548	ENTER; SAVETMPS; PUSHMARK (SP);
		549	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv)));
		550
		551	// calling with G_SCALAR ensures that we always get a 1 return value
		552	PUTBACK;
		553	call_sv ((SV *)GvCV (to_json), G_SCALAR);
		554	SPAGAIN;
		555
		556	// catch this surprisingly common error
		557	if (SvROK (TOPs) && SvRV (TOPs) == sv)
		558	croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
		559
		560	sv = POPs;
		561	PUTBACK;
		562
451	encode_nl (enc);	563	encode_sv (enc, sv);
		564
		565	FREETMPS; LEAVE;
		566	}
		567	else if (enc->json.flags & F_ALLOW_BLESSED)
		568	encode_str (enc, "null", 4, 0);
		569	else
		570	croak ("encountered object '%s', but neither allow_blessed enabled nor TO_JSON method available on it",
		571	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
		572	}
		573	else if (enc->json.flags & F_ALLOW_BLESSED)
		574	encode_str (enc, "null", 4, 0);
		575	else
		576	croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled",
		577	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
452	}	578	}
453	}	579	}
454
455	--enc->indent; encode_indent (enc); encode_ch (enc, '}');
456	}
457
458	// encode objects, arrays and special \0=false and \1=true values.
459	static void
460	encode_rv (enc_t enc, SV sv)
461	{
462	svtype svt;
463
464	SvGETMAGIC (sv);
465	svt = SvTYPE (sv);
466
467	if (svt == SVt_PVHV)	580	else if (svt == SVt_PVHV)
468	encode_hv (enc, (HV *)sv);	581	encode_hv (enc, (HV *)sv);
469	else if (svt == SVt_PVAV)	582	else if (svt == SVt_PVAV)
470	encode_av (enc, (AV *)sv);	583	encode_av (enc, (AV *)sv);
471	else if (svt < SVt_PVAV)	584	else if (svt < SVt_PVAV)
472	{	585	{
473	if (SvNIOK (sv) && SvIV (sv) == 0)	586	STRLEN len = 0;
		587	char *pv = svt ? SvPV (sv, len) : 0;
		588
		589	if (len == 1 && *pv == '1')
		590	encode_str (enc, "true", 4, 0);
		591	else if (len == 1 && *pv == '0')
474	encode_str (enc, "false", 5, 0);	592	encode_str (enc, "false", 5, 0);
475	else if (SvNIOK (sv) && SvIV (sv) == 1)
476	encode_str (enc, "true", 4, 0);
477	else	593	else
478	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",	594	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",
479	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	595	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
480	}	596	}
481	else	597	else
…		…
551	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",	667	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",
552	SvPV_nolen (sv), SvFLAGS (sv));	668	SvPV_nolen (sv), SvFLAGS (sv));
553	}	669	}
554		670
555	static SV *	671	static SV *
556	encode_json (SV *scalar, U32 flags)	672	encode_json (SV scalar, JSON json)
557	{	673	{
558	enc_t enc;	674	enc_t enc;
559		675
560	if (!(flags & F_ALLOW_NONREF) && !SvROK (scalar))	676	if (!(json->flags & F_ALLOW_NONREF) && !SvROK (scalar))
561	croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");	677	croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");
562		678
563	enc.flags = flags;	679	enc.json = *json;
564	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	680	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
565	enc.cur = SvPVX (enc.sv);	681	enc.cur = SvPVX (enc.sv);
566	enc.end = SvEND (enc.sv);	682	enc.end = SvEND (enc.sv);
567	enc.indent = 0;	683	enc.indent = 0;
568	enc.maxdepth = DEC_DEPTH (flags);	684	enc.maxdepth = DEC_DEPTH (enc.json.flags);
569		685
570	SvPOK_only (enc.sv);	686	SvPOK_only (enc.sv);
571	encode_sv (&enc, scalar);	687	encode_sv (&enc, scalar);
572		688
573	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));	689	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));
574	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings	690	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings
575		691
576	if (!(flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))	692	if (!(enc.json.flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))
577	SvUTF8_on (enc.sv);	693	SvUTF8_on (enc.sv);
578		694
579	if (enc.flags & F_SHRINK)	695	if (enc.json.flags & F_SHRINK)
580	shrink (enc.sv);	696	shrink (enc.sv);
581		697
582	return enc.sv;	698	return enc.sv;
583	}	699	}
584		700
…		…
589	typedef struct	705	typedef struct
590	{	706	{
591	char *cur; // current parser pointer	707	char *cur; // current parser pointer
592	char *end; // end of input string	708	char *end; // end of input string
593	const char *err; // parse error, if != 0	709	const char *err; // parse error, if != 0
594	U32 flags; // F_*	710	JSON json;
595	U32 depth; // recursion depth	711	U32 depth; // recursion depth
596	U32 maxdepth; // recursion depth limit	712	U32 maxdepth; // recursion depth limit
597	} dec_t;	713	} dec_t;
598		714
599	inline void	715	inline void
		716	decode_comment (dec_t *dec)
		717	{
		718	// only '#'-style comments allowed a.t.m.
		719
		720	while (dec->cur && dec->cur != 0x0a && *dec->cur != 0x0d)
		721	++dec->cur;
		722	}
		723
		724	inline void
600	decode_ws (dec_t *dec)	725	decode_ws (dec_t *dec)
601	{	726	{
602	for (;;)	727	for (;;)
603	{	728	{
604	char ch = *dec->cur;	729	char ch = *dec->cur;
605		730
606	if (ch > 0x20	731	if (ch > 0x20)
		732	{
		733	if (expect_false (ch == '#'))
		734	{
		735	if (dec->json.flags & F_RELAXED)
		736	decode_comment (dec);
		737	else
		738	break;
		739	}
		740	else
		741	break;
		742	}
607	\|\| (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09))	743	else if (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09)
608	break;	744	break; // parse error, but let higher level handle it, gives better error messages
609		745
610	++dec->cur;	746	++dec->cur;
611	}	747	}
612	}	748	}
613		749
…		…
862	is_nv = 1;	998	is_nv = 1;
863	}	999	}
864		1000
865	if (!is_nv)	1001	if (!is_nv)
866	{	1002	{
		1003	int len = dec->cur - start;
		1004
867	// special case the rather common 1..4-digit-int case, assumes 32 bit ints or so	1005	// special case the rather common 1..4-digit-int case, assumes 32 bit ints or so
868	if (*start == '-')	1006	if (*start == '-')
869	switch (dec->cur - start)	1007	switch (len)
870	{	1008	{
871	case 2: return newSViv (-( start [1] - '0' * 1));	1009	case 2: return newSViv (-( start [1] - '0' * 1));
872	case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11));	1010	case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11));
873	case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111));	1011	case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111));
874	case 5: return newSViv (-(start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111));	1012	case 5: return newSViv (-(start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111));
875	}	1013	}
876	else	1014	else
877	switch (dec->cur - start)	1015	switch (len)
878	{	1016	{
879	case 1: return newSViv ( start [0] - '0' * 1);	1017	case 1: return newSViv ( start [0] - '0' * 1);
880	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);	1018	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);
881	case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111);	1019	case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111);
882	case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111);	1020	case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111);
883	}	1021	}
884		1022
885	{	1023	{
886	UV uv;	1024	UV uv;
887	int numtype = grok_number (start, dec->cur - start, &uv);	1025	int numtype = grok_number (start, len, &uv);
888	if (numtype & IS_NUMBER_IN_UV)	1026	if (numtype & IS_NUMBER_IN_UV)
889	if (numtype & IS_NUMBER_NEG)	1027	if (numtype & IS_NUMBER_NEG)
890	{	1028	{
891	if (uv < (UV)IV_MIN)	1029	if (uv < (UV)IV_MIN)
892	return newSViv (-(IV)uv);	1030	return newSViv (-(IV)uv);
893	}	1031	}
894	else	1032	else
895	return newSVuv (uv);	1033	return newSVuv (uv);
896
897	// here would likely be the place for bigint support
898	}	1034	}
899	}
900		1035
901	// if we ever support bigint or bigfloat, this is the place for bigfloat	1036	len -= *start == '-' ? 1 : 0;
		1037
		1038	// does not fit into IV or UV, try NV
		1039	if ((sizeof (NV) == sizeof (double) && DBL_DIG >= len)
		1040	#if defined (LDBL_DIG)
		1041	\|\| (sizeof (NV) == sizeof (long double) && LDBL_DIG >= len)
		1042	#endif
		1043	)
		1044	// fits into NV without loss of precision
		1045	return newSVnv (Atof (start));
		1046
		1047	// everything else fails, convert it to a string
		1048	return newSVpvn (start, dec->cur - start);
		1049	}
		1050
		1051	// loss of precision here
902	return newSVnv (Atof (start));	1052	return newSVnv (Atof (start));
903		1053
904	fail:	1054	fail:
905	return 0;	1055	return 0;
906	}	1056	}
…		…
936		1086
937	if (*dec->cur != ',')	1087	if (*dec->cur != ',')
938	ERR (", or ] expected while parsing array");	1088	ERR (", or ] expected while parsing array");
939		1089
940	++dec->cur;	1090	++dec->cur;
		1091
		1092	decode_ws (dec);
		1093
		1094	if (*dec->cur == ']' && dec->json.flags & F_RELAXED)
		1095	{
		1096	++dec->cur;
		1097	break;
		1098	}
941	}	1099	}
942		1100
943	DEC_DEC_DEPTH;	1101	DEC_DEC_DEPTH;
944	return newRV_noinc ((SV *)av);	1102	return newRV_noinc ((SV *)av);
945		1103
…		…
950	}	1108	}
951		1109
952	static SV *	1110	static SV *
953	decode_hv (dec_t *dec)	1111	decode_hv (dec_t *dec)
954	{	1112	{
		1113	SV *sv;
955	HV *hv = newHV ();	1114	HV *hv = newHV ();
956		1115
957	DEC_INC_DEPTH;	1116	DEC_INC_DEPTH;
958	decode_ws (dec);	1117	decode_ws (dec);
959		1118
960	if (*dec->cur == '}')	1119	if (*dec->cur == '}')
961	++dec->cur;	1120	++dec->cur;
962	else	1121	else
963	for (;;)	1122	for (;;)
964	{	1123	{
		1124	EXPECT_CH ('"');
		1125
		1126	// heuristic: assume that
		1127	// a) decode_str + hv_store_ent are abysmally slow.
		1128	// b) most hash keys are short, simple ascii text.
		1129	// => try to "fast-match" such strings to avoid
		1130	// the overhead of decode_str + hv_store_ent.
		1131	{
965	SV key, value;	1132	SV *value;
		1133	char *p = dec->cur;
		1134	char *e = p + 24; // only try up to 24 bytes
966		1135
967	decode_ws (dec); EXPECT_CH ('"');	1136	for (;;)
968
969	key = decode_str (dec);
970	if (!key)
971	goto fail;
972
973	decode_ws (dec); EXPECT_CH (':');
974
975	value = decode_sv (dec);
976	if (!value)
977	{	1137	{
		1138	// the >= 0x80 is true on most architectures
		1139	if (p == e \|\| p < 0x20 \|\| p >= 0x80 \|\| *p == '\\')
		1140	{
		1141	// slow path, back up and use decode_str
		1142	SV *key = decode_str (dec);
		1143	if (!key)
		1144	goto fail;
		1145
		1146	decode_ws (dec); EXPECT_CH (':');
		1147
		1148	decode_ws (dec);
		1149	value = decode_sv (dec);
		1150	if (!value)
		1151	{
		1152	SvREFCNT_dec (key);
		1153	goto fail;
		1154	}
		1155
		1156	hv_store_ent (hv, key, value, 0);
978	SvREFCNT_dec (key);	1157	SvREFCNT_dec (key);
		1158
		1159	break;
		1160	}
		1161	else if (*p == '"')
		1162	{
		1163	// fast path, got a simple key
		1164	char *key = dec->cur;
		1165	int len = p - key;
		1166	dec->cur = p + 1;
		1167
		1168	decode_ws (dec); EXPECT_CH (':');
		1169
		1170	decode_ws (dec);
		1171	value = decode_sv (dec);
		1172	if (!value)
979	goto fail;	1173	goto fail;
		1174
		1175	hv_store (hv, key, len, value, 0);
		1176
		1177	break;
		1178	}
		1179
		1180	++p;
980	}	1181	}
981		1182	}
982	hv_store_ent (hv, key, value, 0);
983	SvREFCNT_dec (key);
984		1183
985	decode_ws (dec);	1184	decode_ws (dec);
986		1185
987	if (*dec->cur == '}')	1186	if (*dec->cur == '}')
988	{	1187	{
…		…
992		1191
993	if (*dec->cur != ',')	1192	if (*dec->cur != ',')
994	ERR (", or } expected while parsing object/hash");	1193	ERR (", or } expected while parsing object/hash");
995		1194
996	++dec->cur;	1195	++dec->cur;
		1196
		1197	decode_ws (dec);
		1198
		1199	if (*dec->cur == '}' && dec->json.flags & F_RELAXED)
		1200	{
		1201	++dec->cur;
		1202	break;
		1203	}
997	}	1204	}
998		1205
999	DEC_DEC_DEPTH;	1206	DEC_DEC_DEPTH;
1000	return newRV_noinc ((SV *)hv);	1207	sv = newRV_noinc ((SV *)hv);
		1208
		1209	// check filter callbacks
		1210	if (dec->json.flags & F_HOOK)
		1211	{
		1212	if (dec->json.cb_sk_object && HvKEYS (hv) == 1)
		1213	{
		1214	HE cb, he;
		1215
		1216	hv_iterinit (hv);
		1217	he = hv_iternext (hv);
		1218	hv_iterinit (hv);
		1219
		1220	// the next line creates a mortal sv each time its called.
		1221	// might want to optimise this for common cases.
		1222	cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0);
		1223
		1224	if (cb)
		1225	{
		1226	dSP;
		1227	int count;
		1228
		1229	ENTER; SAVETMPS; PUSHMARK (SP);
		1230	XPUSHs (HeVAL (he));
		1231
		1232	PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN;
		1233
		1234	if (count == 1)
		1235	{
		1236	sv = newSVsv (POPs);
		1237	FREETMPS; LEAVE;
		1238	return sv;
		1239	}
		1240
		1241	FREETMPS; LEAVE;
		1242	}
		1243	}
		1244
		1245	if (dec->json.cb_object)
		1246	{
		1247	dSP;
		1248	int count;
		1249
		1250	ENTER; SAVETMPS; PUSHMARK (SP);
		1251	XPUSHs (sv_2mortal (sv));
		1252
		1253	PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN;
		1254
		1255	if (count == 1)
		1256	{
		1257	sv = newSVsv (POPs);
		1258	FREETMPS; LEAVE;
		1259	return sv;
		1260	}
		1261
		1262	SvREFCNT_inc (sv);
		1263	FREETMPS; LEAVE;
		1264	}
		1265	}
		1266
		1267	return sv;
1001		1268
1002	fail:	1269	fail:
1003	SvREFCNT_dec (hv);	1270	SvREFCNT_dec (hv);
1004	DEC_DEC_DEPTH;	1271	DEC_DEC_DEPTH;
1005	return 0;	1272	return 0;
1006	}	1273	}
1007		1274
1008	static SV *	1275	static SV *
1009	decode_sv (dec_t *dec)	1276	decode_sv (dec_t *dec)
1010	{	1277	{
1011	decode_ws (dec);
1012
1013	// the beauty of JSON: you need exactly one character lookahead	1278	// the beauty of JSON: you need exactly one character lookahead
1014	// to parse anything.	1279	// to parse anything.
1015	switch (*dec->cur)	1280	switch (*dec->cur)
1016	{	1281	{
1017	case '"': ++dec->cur; return decode_str (dec);	1282	case '"': ++dec->cur; return decode_str (dec);
…		…
1025		1290
1026	case 't':	1291	case 't':
1027	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))	1292	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))
1028	{	1293	{
1029	dec->cur += 4;	1294	dec->cur += 4;
1030	return newSViv (1);	1295	#if JSON_SLOW
		1296	json_true = get_sv ("JSON::XS::true", 1); SvREADONLY_on (json_true);
		1297	#endif
		1298	return SvREFCNT_inc (json_true);
1031	}	1299	}
1032	else	1300	else
1033	ERR ("'true' expected");	1301	ERR ("'true' expected");
1034		1302
1035	break;	1303	break;
1036		1304
1037	case 'f':	1305	case 'f':
1038	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))	1306	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))
1039	{	1307	{
1040	dec->cur += 5;	1308	dec->cur += 5;
1041	return newSViv (0);	1309	#if JSON_SLOW
		1310	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);
		1311	#endif
		1312	return SvREFCNT_inc (json_false);
1042	}	1313	}
1043	else	1314	else
1044	ERR ("'false' expected");	1315	ERR ("'false' expected");
1045		1316
1046	break;	1317	break;
…		…
1064	fail:	1335	fail:
1065	return 0;	1336	return 0;
1066	}	1337	}
1067		1338
1068	static SV *	1339	static SV *
1069	decode_json (SV string, U32 flags, UV offset_return)	1340	decode_json (SV string, JSON json, UV *offset_return)
1070	{	1341	{
1071	dec_t dec;	1342	dec_t dec;
1072	UV offset;	1343	UV offset;
1073	SV *sv;	1344	SV *sv;
1074		1345
1075	SvGETMAGIC (string);	1346	SvGETMAGIC (string);
1076	SvUPGRADE (string, SVt_PV);	1347	SvUPGRADE (string, SVt_PV);
1077		1348
		1349	if (json->flags & F_MAXSIZE && SvCUR (string) > DEC_SIZE (json->flags))
		1350	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",
		1351	(unsigned long)SvCUR (string), (unsigned long)DEC_SIZE (json->flags));
		1352
1078	if (flags & F_UTF8)	1353	if (json->flags & F_UTF8)
1079	sv_utf8_downgrade (string, 0);	1354	sv_utf8_downgrade (string, 0);
1080	else	1355	else
1081	sv_utf8_upgrade (string);	1356	sv_utf8_upgrade (string);
1082		1357
1083	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP	1358	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP
1084		1359
1085	dec.flags = flags;	1360	dec.json = *json;
1086	dec.cur = SvPVX (string);	1361	dec.cur = SvPVX (string);
1087	dec.end = SvEND (string);	1362	dec.end = SvEND (string);
1088	dec.err = 0;	1363	dec.err = 0;
1089	dec.depth = 0;	1364	dec.depth = 0;
1090	dec.maxdepth = DEC_DEPTH (dec.flags);	1365	dec.maxdepth = DEC_DEPTH (dec.json.flags);
		1366
		1367	if (dec.json.cb_object \|\| dec.json.cb_sk_object)
		1368	dec.json.flags \|= F_HOOK;
1091		1369
1092	*dec.end = 0; // this should basically be a nop, too, but make sure it's there	1370	*dec.end = 0; // this should basically be a nop, too, but make sure it's there
		1371
		1372	decode_ws (&dec);
1093	sv = decode_sv (&dec);	1373	sv = decode_sv (&dec);
1094		1374
1095	if (!(offset_return \|\| !sv))	1375	if (!(offset_return \|\| !sv))
1096	{	1376	{
1097	// check for trailing garbage	1377	// check for trailing garbage
…		…
1105	}	1385	}
1106	}	1386	}
1107		1387
1108	if (offset_return \|\| !sv)	1388	if (offset_return \|\| !sv)
1109	{	1389	{
1110	offset = dec.flags & F_UTF8	1390	offset = dec.json.flags & F_UTF8
1111	? dec.cur - SvPVX (string)	1391	? dec.cur - SvPVX (string)
1112	: utf8_distance (dec.cur, SvPVX (string));	1392	: utf8_distance (dec.cur, SvPVX (string));
1113		1393
1114	if (offset_return)	1394	if (offset_return)
1115	*offset_return = offset;	1395	*offset_return = offset;
…		…
1134	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");	1414	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");
1135	}	1415	}
1136		1416
1137	sv = sv_2mortal (sv);	1417	sv = sv_2mortal (sv);
1138		1418
1139	if (!(dec.flags & F_ALLOW_NONREF) && !SvROK (sv))	1419	if (!(dec.json.flags & F_ALLOW_NONREF) && !SvROK (sv))
1140	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");	1420	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");
1141		1421
1142	return sv;	1422	return sv;
1143	}	1423	}
1144		1424
…		…
1156	i >= '0' && i <= '9' ? i - '0'	1436	i >= '0' && i <= '9' ? i - '0'
1157	: i >= 'a' && i <= 'f' ? i - 'a' + 10	1437	: i >= 'a' && i <= 'f' ? i - 'a' + 10
1158	: i >= 'A' && i <= 'F' ? i - 'A' + 10	1438	: i >= 'A' && i <= 'F' ? i - 'A' + 10
1159	: -1;	1439	: -1;
1160		1440
1161	json_stash = gv_stashpv ("JSON::XS", 1);	1441	json_stash = gv_stashpv ("JSON::XS" , 1);
		1442	json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1);
		1443
		1444	json_true = get_sv ("JSON::XS::true" , 1); SvREADONLY_on (json_true );
		1445	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);
1162	}	1446	}
1163		1447
1164	PROTOTYPES: DISABLE	1448	PROTOTYPES: DISABLE
1165		1449
1166	SV new (char dummy)	1450	void CLONE (...)
1167	CODE:	1451	CODE:
1168	RETVAL = sv_bless (newRV_noinc (newSVuv (F_DEFAULT)), json_stash);	1452	json_stash = 0;
		1453	json_boolean_stash = 0;
		1454
		1455	void new (char *klass)
		1456	PPCODE:
		1457	{
		1458	SV *pv = NEWSV (0, sizeof (JSON));
		1459	SvPOK_only (pv);
		1460	Zero (SvPVX (pv), 1, JSON);
		1461	((JSON *)SvPVX (pv))->flags = F_DEFAULT;
		1462	XPUSHs (sv_2mortal (sv_bless (
		1463	newRV_noinc (pv),
		1464	strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1)
		1465	)));
		1466	}
		1467
		1468	void ascii (JSON *self, int enable = 1)
		1469	ALIAS:
		1470	ascii = F_ASCII
		1471	latin1 = F_LATIN1
		1472	utf8 = F_UTF8
		1473	indent = F_INDENT
		1474	canonical = F_CANONICAL
		1475	space_before = F_SPACE_BEFORE
		1476	space_after = F_SPACE_AFTER
		1477	pretty = F_PRETTY
		1478	allow_nonref = F_ALLOW_NONREF
		1479	shrink = F_SHRINK
		1480	allow_blessed = F_ALLOW_BLESSED
		1481	convert_blessed = F_CONV_BLESSED
		1482	relaxed = F_RELAXED
		1483	PPCODE:
		1484	{
		1485	if (enable)
		1486	self->flags \|= ix;
		1487	else
		1488	self->flags &= ~ix;
		1489
		1490	XPUSHs (ST (0));
		1491	}
		1492
		1493	void get_ascii (JSON *self)
		1494	ALIAS:
		1495	get_ascii = F_ASCII
		1496	get_latin1 = F_LATIN1
		1497	get_utf8 = F_UTF8
		1498	get_indent = F_INDENT
		1499	get_canonical = F_CANONICAL
		1500	get_space_before = F_SPACE_BEFORE
		1501	get_space_after = F_SPACE_AFTER
		1502	get_allow_nonref = F_ALLOW_NONREF
		1503	get_shrink = F_SHRINK
		1504	get_allow_blessed = F_ALLOW_BLESSED
		1505	get_convert_blessed = F_CONV_BLESSED
		1506	get_relaxed = F_RELAXED
		1507	PPCODE:
		1508	XPUSHs (boolSV (self->flags & ix));
		1509
		1510	void max_depth (JSON *self, UV max_depth = 0x80000000UL)
		1511	PPCODE:
		1512	{
		1513	UV log2 = 0;
		1514
		1515	if (max_depth > 0x80000000UL) max_depth = 0x80000000UL;
		1516
		1517	while ((1UL << log2) < max_depth)
		1518	++log2;
		1519
		1520	self->flags = self->flags & ~F_MAXDEPTH \| (log2 << S_MAXDEPTH);
		1521
		1522	XPUSHs (ST (0));
		1523	}
		1524
		1525	U32 get_max_depth (JSON *self)
		1526	CODE:
		1527	RETVAL = DEC_DEPTH (self->flags);
1169	OUTPUT:	1528	OUTPUT:
1170	RETVAL	1529	RETVAL
1171		1530
1172	SV ascii (SV self, int enable = 1)	1531	void max_size (JSON *self, UV max_size = 0)
1173	ALIAS:	1532	PPCODE:
1174	ascii = F_ASCII	1533	{
1175	latin1 = F_LATIN1	1534	UV log2 = 0;
1176	utf8 = F_UTF8	1535
1177	indent = F_INDENT	1536	if (max_size > 0x80000000UL) max_size = 0x80000000UL;
1178	canonical = F_CANONICAL	1537	if (max_size == 1) max_size = 2;
1179	space_before = F_SPACE_BEFORE	1538
1180	space_after = F_SPACE_AFTER	1539	while ((1UL << log2) < max_size)
1181	pretty = F_PRETTY	1540	++log2;
1182	allow_nonref = F_ALLOW_NONREF	1541
1183	shrink = F_SHRINK	1542	self->flags = self->flags & ~F_MAXSIZE \| (log2 << S_MAXSIZE);
		1543
		1544	XPUSHs (ST (0));
		1545	}
		1546
		1547	int get_max_size (JSON *self)
1184	CODE:	1548	CODE:
1185	{	1549	RETVAL = DEC_SIZE (self->flags);
1186	UV *uv = SvJSON (self);
1187	if (enable)
1188	*uv \|= ix;
1189	else
1190	*uv &= ~ix;
1191
1192	RETVAL = newSVsv (self);
1193	}
1194	OUTPUT:	1550	OUTPUT:
1195	RETVAL	1551	RETVAL
1196		1552
1197	SV max_depth (SV self, UV max_depth = 0x80000000UL)	1553	void filter_json_object (JSON self, SV cb = &PL_sv_undef)
1198	CODE:
1199	{
1200	UV *uv = SvJSON (self);
1201	UV log2 = 0;
1202
1203	if (max_depth > 0x80000000UL) max_depth = 0x80000000UL;
1204
1205	while ((1UL << log2) < max_depth)
1206	++log2;
1207
1208	uv = uv & ~F_MAXDEPTH \| (log2 << S_MAXDEPTH);
1209
1210	RETVAL = newSVsv (self);
1211	}
1212	OUTPUT:
1213	RETVAL
1214
1215	void encode (SV self, SV scalar)
1216	PPCODE:	1554	PPCODE:
1217	XPUSHs (encode_json (scalar, *SvJSON (self)));	1555	{
		1556	SvREFCNT_dec (self->cb_object);
		1557	self->cb_object = SvOK (cb) ? newSVsv (cb) : 0;
1218		1558
1219	void decode (SV self, SV jsonstr)	1559	XPUSHs (ST (0));
		1560	}
		1561
		1562	void filter_json_single_key_object (JSON self, SV key, SV *cb = &PL_sv_undef)
1220	PPCODE:	1563	PPCODE:
		1564	{
		1565	if (!self->cb_sk_object)
		1566	self->cb_sk_object = newHV ();
		1567
		1568	if (SvOK (cb))
		1569	hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0);
		1570	else
		1571	{
		1572	hv_delete_ent (self->cb_sk_object, key, G_DISCARD, 0);
		1573
		1574	if (!HvKEYS (self->cb_sk_object))
		1575	{
		1576	SvREFCNT_dec (self->cb_sk_object);
		1577	self->cb_sk_object = 0;
		1578	}
		1579	}
		1580
		1581	XPUSHs (ST (0));
		1582	}
		1583
		1584	void encode (JSON self, SV scalar)
		1585	PPCODE:
		1586	XPUSHs (encode_json (scalar, self));
		1587
		1588	void decode (JSON self, SV jsonstr)
		1589	PPCODE:
1221	XPUSHs (decode_json (jsonstr, *SvJSON (self), 0));	1590	XPUSHs (decode_json (jsonstr, self, 0));
1222		1591
1223	void decode_prefix (SV self, SV jsonstr)	1592	void decode_prefix (JSON self, SV jsonstr)
1224	PPCODE:	1593	PPCODE:
1225	{	1594	{
1226	UV offset;	1595	UV offset;
1227	EXTEND (SP, 2);	1596	EXTEND (SP, 2);
1228	PUSHs (decode_json (jsonstr, *SvJSON (self), &offset));	1597	PUSHs (decode_json (jsonstr, self, &offset));
1229	PUSHs (sv_2mortal (newSVuv (offset)));	1598	PUSHs (sv_2mortal (newSVuv (offset)));
1230	}	1599	}
1231		1600
		1601	void DESTROY (JSON *self)
		1602	CODE:
		1603	SvREFCNT_dec (self->cb_sk_object);
		1604	SvREFCNT_dec (self->cb_object);
		1605
1232	PROTOTYPES: ENABLE	1606	PROTOTYPES: ENABLE
1233		1607
1234	void to_json (SV *scalar)	1608	void to_json (SV *scalar)
1235	ALIAS:
1236	objToJson = 0
1237	PPCODE:	1609	PPCODE:
		1610	{
		1611	JSON json = { F_DEFAULT \| F_UTF8 };
1238	XPUSHs (encode_json (scalar, F_DEFAULT \| F_UTF8));	1612	XPUSHs (encode_json (scalar, &json));
		1613	}
1239		1614
1240	void from_json (SV *jsonstr)	1615	void from_json (SV *jsonstr)
1241	ALIAS:
1242	jsonToObj = 0
1243	PPCODE:	1616	PPCODE:
		1617	{
		1618	JSON json = { F_DEFAULT \| F_UTF8 };
1244	XPUSHs (decode_json (jsonstr, F_DEFAULT \| F_UTF8, 0));	1619	XPUSHs (decode_json (jsonstr, &json, 0));
		1620	}
1245		1621

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Comparing JSON-XS/XS.xs (file contents): Revision 1.40 by root, Tue Jun 12 01:27:02 2007 UTC vs. Revision 1.68 by root, Thu Nov 29 08:37:11 2007 UTC

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Comparing JSON-XS/XS.xs (file contents):
Revision 1.40 by root, Tue Jun 12 01:27:02 2007 UTC vs.
Revision 1.68 by root, Thu Nov 29 08:37:11 2007 UTC