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

Comparing JSON-XS/XS.xs (file contents):
Revision 1.41 by root, Sat Jun 23 22:53:16 2007 UTC vs.
Revision 1.70 by root, Wed Mar 19 00:44:54 2008 UTC

…		…
1	#include "EXTERN.h"	1	#include "EXTERN.h"
2	#include "perl.h"	2	#include "perl.h"
3	#include "XSUB.h"	3	#include "XSUB.h"
4		4
5	#include "assert.h"	5	#include <assert.h>
6	#include "string.h"	6	#include <string.h>
7	#include "stdlib.h"	7	#include <stdlib.h>
8	#include "stdio.h"	8	#include <stdio.h>
		9	#include <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
14	// some old perls do not have this, try to make it work, no	15	// some old perls do not have this, try to make it work, no
15	// guarentees, though.	16	// guarentees, though. if it breaks, you get to keep the pieces.
16	#ifndef UTF8_MAXBYTES	17	#ifndef UTF8_MAXBYTES
17	# define UTF8_MAXBYTES 13	18	# define UTF8_MAXBYTES 13
18	#endif	19	#endif
19		20
20	#define F_ASCII 0x00000001UL	21	#define F_ASCII 0x00000001UL
21	#define F_LATIN1 0x00000002UL	22	#define F_LATIN1 0x00000002UL
22	#define F_UTF8 0x00000004UL	23	#define F_UTF8 0x00000004UL
23	#define F_INDENT 0x00000008UL	24	#define F_INDENT 0x00000008UL
24	#define F_CANONICAL 0x00000010UL	25	#define F_CANONICAL 0x00000010UL
25	#define F_SPACE_BEFORE 0x00000020UL	26	#define F_SPACE_BEFORE 0x00000020UL
26	#define F_SPACE_AFTER 0x00000040UL	27	#define F_SPACE_AFTER 0x00000040UL
27	#define F_ALLOW_NONREF 0x00000100UL	28	#define F_ALLOW_NONREF 0x00000100UL
28	#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
29	#define F_MAXDEPTH 0xf8000000UL	34	#define F_MAXDEPTH 0xf8000000UL
30	#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
31		39
32	#define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH))	40	#define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH))
33		41	#define DEC_SIZE(flags) (1UL << ((flags & F_MAXSIZE ) >> S_MAXSIZE ))
34	// F_SELFCONVERT? <=> to_json/toJson
35	// F_BLESSED? <=> { $__class__$ => }
36		42
37	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER	43	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER
38	#define F_DEFAULT (9UL << S_MAXDEPTH)	44	#define F_DEFAULT (9UL << S_MAXDEPTH)
39		45
40	#define INIT_SIZE 32 // initial scalar size to be allocated	46	#define INIT_SIZE 32 // initial scalar size to be allocated
54	#endif	60	#endif
55		61
56	#define expect_false(expr) expect ((expr) != 0, 0)	62	#define expect_false(expr) expect ((expr) != 0, 0)
57	#define expect_true(expr) expect ((expr) != 0, 1)	63	#define expect_true(expr) expect ((expr) != 0, 1)
58		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
59	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;
60		81
61	/////////////////////////////////////////////////////////////////////////////	82	/////////////////////////////////////////////////////////////////////////////
62	// utility functions	83	// utility functions
63		84
64	static UV *	85	inline void
65	SvJSON (SV *sv)
66	{
67	if (!(SvROK (sv) && SvOBJECT (SvRV (sv)) && SvSTASH (SvRV (sv)) == json_stash))
68	croak ("object is not of type JSON::XS");
69
70	return &SvUVX (SvRV (sv));
71	}
72
73	static void
74	shrink (SV *sv)	86	shrink (SV *sv)
75	{	87	{
76	sv_utf8_downgrade (sv, 1);	88	sv_utf8_downgrade (sv, 1);
77	if (SvLEN (sv) > SvCUR (sv) + 1)	89	if (SvLEN (sv) > SvCUR (sv) + 1)
78	{	90	{
…		…
113	typedef struct	125	typedef struct
114	{	126	{
115	char *cur; // SvPVX (sv) + current output position	127	char *cur; // SvPVX (sv) + current output position
116	char *end; // SvEND (sv)	128	char *end; // SvEND (sv)
117	SV *sv; // result scalar	129	SV *sv; // result scalar
118	U32 flags; // F_*	130	JSON json;
119	U32 indent; // indentation level	131	U32 indent; // indentation level
120	U32 maxdepth; // max. indentation/recursion level	132	U32 maxdepth; // max. indentation/recursion level
121	} enc_t;	133	} enc_t;
122		134
123	inline void	135	inline void
…		…
197	}	209	}
198		210
199	if (uch > 0x10FFFFUL)	211	if (uch > 0x10FFFFUL)
200	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);
201		213
202	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))
203	{	215	{
204	if (uch > 0xFFFFUL)	216	if (uch > 0xFFFFUL)
205	{	217	{
206	need (enc, len += 11);	218	need (enc, len += 11);
207	sprintf (enc->cur, "\\u%04x\\u%04x",	219	sprintf (enc->cur, "\\u%04x\\u%04x",
…		…
221	*enc->cur++ = hexdigit [(uch >> 0) & 15];	233	*enc->cur++ = hexdigit [(uch >> 0) & 15];
222	}	234	}
223		235
224	str += clen;	236	str += clen;
225	}	237	}
226	else if (enc->flags & F_LATIN1)	238	else if (enc->json.flags & F_LATIN1)
227	{	239	{
228	*enc->cur++ = uch;	240	*enc->cur++ = uch;
229	str += clen;	241	str += clen;
230	}	242	}
231	else if (is_utf8)	243	else if (is_utf8)
…		…
252	}	264	}
253		265
254	inline void	266	inline void
255	encode_indent (enc_t *enc)	267	encode_indent (enc_t *enc)
256	{	268	{
257	if (enc->flags & F_INDENT)	269	if (enc->json.flags & F_INDENT)
258	{	270	{
259	int spaces = enc->indent * INDENT_STEP;	271	int spaces = enc->indent * INDENT_STEP;
260		272
261	need (enc, spaces);	273	need (enc, spaces);
262	memset (enc->cur, ' ', spaces);	274	memset (enc->cur, ' ', spaces);
…		…
272	}	284	}
273		285
274	inline void	286	inline void
275	encode_nl (enc_t *enc)	287	encode_nl (enc_t *enc)
276	{	288	{
277	if (enc->flags & F_INDENT)	289	if (enc->json.flags & F_INDENT)
278	{	290	{
279	need (enc, 1);	291	need (enc, 1);
280	encode_ch (enc, '\n');	292	encode_ch (enc, '\n');
281	}	293	}
282	}	294	}
…		…
284	inline void	296	inline void
285	encode_comma (enc_t *enc)	297	encode_comma (enc_t *enc)
286	{	298	{
287	encode_ch (enc, ',');	299	encode_ch (enc, ',');
288		300
289	if (enc->flags & F_INDENT)	301	if (enc->json.flags & F_INDENT)
290	encode_nl (enc);	302	encode_nl (enc);
291	else if (enc->flags & F_SPACE_AFTER)	303	else if (enc->json.flags & F_SPACE_AFTER)
292	encode_space (enc);	304	encode_space (enc);
293	}	305	}
294		306
295	static void encode_sv (enc_t enc, SV sv);	307	static void encode_sv (enc_t enc, SV sv);
296		308
…		…
300	int i, len = av_len (av);	312	int i, len = av_len (av);
301		313
302	if (enc->indent >= enc->maxdepth)	314	if (enc->indent >= enc->maxdepth)
303	croak ("data structure too deep (hit recursion limit)");	315	croak ("data structure too deep (hit recursion limit)");
304		316
305	encode_ch (enc, '['); encode_nl (enc);	317	encode_ch (enc, '[');
306	++enc->indent;	318
		319	if (len >= 0)
		320	{
		321	encode_nl (enc); ++enc->indent;
307		322
308	for (i = 0; i <= len; ++i)	323	for (i = 0; i <= len; ++i)
309	{	324	{
		325	SV **svp = av_fetch (av, i, 0);
		326
310	encode_indent (enc);	327	encode_indent (enc);
311	encode_sv (enc, *av_fetch (av, i, 0));
312		328
		329	if (svp)
		330	encode_sv (enc, *svp);
		331	else
		332	encode_str (enc, "null", 4, 0);
		333
313	if (i < len)	334	if (i < len)
314	encode_comma (enc);	335	encode_comma (enc);
315	}	336	}
316		337
		338	encode_nl (enc); --enc->indent; encode_indent (enc);
		339	}
		340
317	encode_nl (enc);	341	encode_ch (enc, ']');
318
319	--enc->indent;
320	encode_indent (enc); encode_ch (enc, ']');
321	}	342	}
322		343
323	static void	344	static void
324	encode_he (enc_t enc, HE he)	345	encode_hk (enc_t enc, HE he)
325	{	346	{
326	encode_ch (enc, '"');	347	encode_ch (enc, '"');
327		348
328	if (HeKLEN (he) == HEf_SVKEY)	349	if (HeKLEN (he) == HEf_SVKEY)
329	{	350	{
…		…
339	else	360	else
340	encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he));	361	encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he));
341		362
342	encode_ch (enc, '"');	363	encode_ch (enc, '"');
343		364
344	if (enc->flags & F_SPACE_BEFORE) encode_space (enc);	365	if (enc->json.flags & F_SPACE_BEFORE) encode_space (enc);
345	encode_ch (enc, ':');	366	encode_ch (enc, ':');
346	if (enc->flags & F_SPACE_AFTER ) encode_space (enc);	367	if (enc->json.flags & F_SPACE_AFTER ) encode_space (enc);
347	encode_sv (enc, HeVAL (he));
348	}	368	}
349		369
350	// compare hash entries, used when all keys are bytestrings	370	// compare hash entries, used when all keys are bytestrings
351	static int	371	static int
352	he_cmp_fast (const void a_, const void b_)	372	he_cmp_fast (const void a_, const void b_)
…		…
357	HE b = (HE **)b_;	377	HE b = (HE **)b_;
358		378
359	STRLEN la = HeKLEN (a);	379	STRLEN la = HeKLEN (a);
360	STRLEN lb = HeKLEN (b);	380	STRLEN lb = HeKLEN (b);
361		381
362	if (!(cmp = memcmp (HeKEY (a), HeKEY (b), la < lb ? la : lb)))	382	if (!(cmp = memcmp (HeKEY (b), HeKEY (a), lb < la ? lb : la)))
363	cmp = la - lb;	383	cmp = lb - la;
364		384
365	return cmp;	385	return cmp;
366	}	386	}
367		387
368	// 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
369	static int	389	static int
370	he_cmp_slow (const void a, const void b)	390	he_cmp_slow (const void a, const void b)
371	{	391	{
372	return sv_cmp (HeSVKEY_force ((HE )a), HeSVKEY_force ((HE **)b));	392	return sv_cmp (HeSVKEY_force ((HE )b), HeSVKEY_force ((HE **)a));
373	}	393	}
374		394
375	static void	395	static void
376	encode_hv (enc_t enc, HV hv)	396	encode_hv (enc_t enc, HV hv)
377	{	397	{
		398	HE *he;
378	int count, i;	399	int count;
379		400
380	if (enc->indent >= enc->maxdepth)	401	if (enc->indent >= enc->maxdepth)
381	croak ("data structure too deep (hit recursion limit)");	402	croak ("data structure too deep (hit recursion limit)");
382		403
383	encode_ch (enc, '{'); encode_nl (enc); ++enc->indent;	404	encode_ch (enc, '{');
384		405
385	if ((count = hv_iterinit (hv)))
386	{
387	// for canonical output we have to sort by keys first	406	// for canonical output we have to sort by keys first
388	// actually, this is mostly due to the stupid so-called	407	// actually, this is mostly due to the stupid so-called
389	// security workaround added somewhere in 5.8.x.	408	// security workaround added somewhere in 5.8.x.
390	// that randomises hash orderings	409	// that randomises hash orderings
391	if (enc->flags & F_CANONICAL)	410	if (enc->json.flags & F_CANONICAL)
		411	{
		412	int count = hv_iterinit (hv);
		413
		414	if (SvMAGICAL (hv))
392	{	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	{
393	int fast = 1;	430	int i, fast = 1;
394	HE *he;
395	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	431	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)
396	HE *hes = _alloca (count sizeof (HE));	432	HE *hes = _alloca (count sizeof (HE));
397	#else	433	#else
398	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
399	#endif	435	#endif
…		…
426		462
427	FREETMPS;	463	FREETMPS;
428	LEAVE;	464	LEAVE;
429	}	465	}
430		466
431	for (i = 0; i < count; ++i)	467	encode_nl (enc); ++enc->indent;
		468
		469	while (count--)
432	{	470	{
433	encode_indent (enc);	471	encode_indent (enc);
		472	he = hes [count];
434	encode_he (enc, hes [i]);	473	encode_hk (enc, he);
		474	encode_sv (enc, expect_false (SvMAGICAL (hv)) ? hv_iterval (hv, he) : HeVAL (he));
435		475
436	if (i < count - 1)	476	if (count)
437	encode_comma (enc);	477	encode_comma (enc);
438	}	478	}
439		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	{
440	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);
441	}	530	}
442	else	531	else
443	{	532	{
444	HE *he = hv_iternext (hv);	533	#if 0
445		534	if (0 && sv_derived_from (rv, "JSON::Literal"))
446	for (;;)
447	{	535	{
448	encode_indent (enc);	536	// not yet
449	encode_he (enc, he);
450
451	if (!(he = hv_iternext (hv)))
452	break;
453
454	encode_comma (enc);
455	}	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);
456		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
457	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))));
458	}	578	}
459	}	579	}
460
461	--enc->indent; encode_indent (enc); encode_ch (enc, '}');
462	}
463
464	// encode objects, arrays and special \0=false and \1=true values.
465	static void
466	encode_rv (enc_t enc, SV sv)
467	{
468	svtype svt;
469
470	SvGETMAGIC (sv);
471	svt = SvTYPE (sv);
472
473	if (svt == SVt_PVHV)	580	else if (svt == SVt_PVHV)
474	encode_hv (enc, (HV *)sv);	581	encode_hv (enc, (HV *)sv);
475	else if (svt == SVt_PVAV)	582	else if (svt == SVt_PVAV)
476	encode_av (enc, (AV *)sv);	583	encode_av (enc, (AV *)sv);
477	else if (svt < SVt_PVAV)	584	else if (svt < SVt_PVAV)
478	{	585	{
479	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')
480	encode_str (enc, "false", 5, 0);	592	encode_str (enc, "false", 5, 0);
481	else if (SvNIOK (sv) && SvIV (sv) == 1)
482	encode_str (enc, "true", 4, 0);
483	else	593	else
484	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",
485	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	595	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
486	}	596	}
487	else	597	else
…		…
557	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",
558	SvPV_nolen (sv), SvFLAGS (sv));	668	SvPV_nolen (sv), SvFLAGS (sv));
559	}	669	}
560		670
561	static SV *	671	static SV *
562	encode_json (SV *scalar, U32 flags)	672	encode_json (SV scalar, JSON json)
563	{	673	{
564	enc_t enc;	674	enc_t enc;
565		675
566	if (!(flags & F_ALLOW_NONREF) && !SvROK (scalar))	676	if (!(json->flags & F_ALLOW_NONREF) && !SvROK (scalar))
567	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)");
568		678
569	enc.flags = flags;	679	enc.json = *json;
570	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	680	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
571	enc.cur = SvPVX (enc.sv);	681	enc.cur = SvPVX (enc.sv);
572	enc.end = SvEND (enc.sv);	682	enc.end = SvEND (enc.sv);
573	enc.indent = 0;	683	enc.indent = 0;
574	enc.maxdepth = DEC_DEPTH (flags);	684	enc.maxdepth = DEC_DEPTH (enc.json.flags);
575		685
576	SvPOK_only (enc.sv);	686	SvPOK_only (enc.sv);
577	encode_sv (&enc, scalar);	687	encode_sv (&enc, scalar);
578		688
579	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));	689	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));
580	*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
581		691
582	if (!(flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))	692	if (!(enc.json.flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))
583	SvUTF8_on (enc.sv);	693	SvUTF8_on (enc.sv);
584		694
585	if (enc.flags & F_SHRINK)	695	if (enc.json.flags & F_SHRINK)
586	shrink (enc.sv);	696	shrink (enc.sv);
587		697
588	return enc.sv;	698	return enc.sv;
589	}	699	}
590		700
…		…
595	typedef struct	705	typedef struct
596	{	706	{
597	char *cur; // current parser pointer	707	char *cur; // current parser pointer
598	char *end; // end of input string	708	char *end; // end of input string
599	const char *err; // parse error, if != 0	709	const char *err; // parse error, if != 0
600	U32 flags; // F_*	710	JSON json;
601	U32 depth; // recursion depth	711	U32 depth; // recursion depth
602	U32 maxdepth; // recursion depth limit	712	U32 maxdepth; // recursion depth limit
603	} dec_t;	713	} dec_t;
604		714
605	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
606	decode_ws (dec_t *dec)	725	decode_ws (dec_t *dec)
607	{	726	{
608	for (;;)	727	for (;;)
609	{	728	{
610	char ch = *dec->cur;	729	char ch = *dec->cur;
611		730
612	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	}
613	\|\| (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09))	743	else if (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09)
614	break;	744	break; // parse error, but let higher level handle it, gives better error messages
615		745
616	++dec->cur;	746	++dec->cur;
617	}	747	}
618	}	748	}
619		749
…		…
868	is_nv = 1;	998	is_nv = 1;
869	}	999	}
870		1000
871	if (!is_nv)	1001	if (!is_nv)
872	{	1002	{
		1003	int len = dec->cur - start;
		1004
873	// special case the rather common 1..4-digit-int case, assumes 32 bit ints or so	1005	// special case the rather common 1..5-digit-int case
874	if (*start == '-')	1006	if (*start == '-')
875	switch (dec->cur - start)	1007	switch (len)
876	{	1008	{
877	case 2: return newSViv (-( start [1] - '0' * 1));	1009	case 2: return newSViv (-( start [1] - '0' * 1));
878	case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11));	1010	case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11));
879	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));
880	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));
		1013	case 6: return newSViv (-(start [1] * 10000 + start [2] * 1000 + start [3] * 100 + start [4] * 10 + start [5] - '0' * 11111));
881	}	1014	}
882	else	1015	else
883	switch (dec->cur - start)	1016	switch (len)
884	{	1017	{
885	case 1: return newSViv ( start [0] - '0' * 1);	1018	case 1: return newSViv ( start [0] - '0' * 1);
886	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);	1019	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);
887	case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111);	1020	case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111);
888	case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111);	1021	case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111);
		1022	case 5: return newSViv ( start [0] * 10000 + start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 11111);
889	}	1023	}
890		1024
891	{	1025	{
892	UV uv;	1026	UV uv;
893	int numtype = grok_number (start, dec->cur - start, &uv);	1027	int numtype = grok_number (start, len, &uv);
894	if (numtype & IS_NUMBER_IN_UV)	1028	if (numtype & IS_NUMBER_IN_UV)
895	if (numtype & IS_NUMBER_NEG)	1029	if (numtype & IS_NUMBER_NEG)
896	{	1030	{
897	if (uv < (UV)IV_MIN)	1031	if (uv < (UV)IV_MIN)
898	return newSViv (-(IV)uv);	1032	return newSViv (-(IV)uv);
899	}	1033	}
900	else	1034	else
901	return newSVuv (uv);	1035	return newSVuv (uv);
902
903	// here would likely be the place for bigint support
904	}	1036	}
905	}
906		1037
907	// if we ever support bigint or bigfloat, this is the place for bigfloat	1038	len -= *start == '-' ? 1 : 0;
		1039
		1040	// does not fit into IV or UV, try NV
		1041	if ((sizeof (NV) == sizeof (double) && DBL_DIG >= len)
		1042	#if defined (LDBL_DIG)
		1043	\|\| (sizeof (NV) == sizeof (long double) && LDBL_DIG >= len)
		1044	#endif
		1045	)
		1046	// fits into NV without loss of precision
		1047	return newSVnv (Atof (start));
		1048
		1049	// everything else fails, convert it to a string
		1050	return newSVpvn (start, dec->cur - start);
		1051	}
		1052
		1053	// loss of precision here
908	return newSVnv (Atof (start));	1054	return newSVnv (Atof (start));
909		1055
910	fail:	1056	fail:
911	return 0;	1057	return 0;
912	}	1058	}
…		…
942		1088
943	if (*dec->cur != ',')	1089	if (*dec->cur != ',')
944	ERR (", or ] expected while parsing array");	1090	ERR (", or ] expected while parsing array");
945		1091
946	++dec->cur;	1092	++dec->cur;
		1093
		1094	decode_ws (dec);
		1095
		1096	if (*dec->cur == ']' && dec->json.flags & F_RELAXED)
		1097	{
		1098	++dec->cur;
		1099	break;
		1100	}
947	}	1101	}
948		1102
949	DEC_DEC_DEPTH;	1103	DEC_DEC_DEPTH;
950	return newRV_noinc ((SV *)av);	1104	return newRV_noinc ((SV *)av);
951		1105
…		…
956	}	1110	}
957		1111
958	static SV *	1112	static SV *
959	decode_hv (dec_t *dec)	1113	decode_hv (dec_t *dec)
960	{	1114	{
		1115	SV *sv;
961	HV *hv = newHV ();	1116	HV *hv = newHV ();
962		1117
963	DEC_INC_DEPTH;	1118	DEC_INC_DEPTH;
964	decode_ws (dec);	1119	decode_ws (dec);
965		1120
966	if (*dec->cur == '}')	1121	if (*dec->cur == '}')
967	++dec->cur;	1122	++dec->cur;
968	else	1123	else
969	for (;;)	1124	for (;;)
970	{	1125	{
		1126	EXPECT_CH ('"');
		1127
		1128	// heuristic: assume that
		1129	// a) decode_str + hv_store_ent are abysmally slow.
		1130	// b) most hash keys are short, simple ascii text.
		1131	// => try to "fast-match" such strings to avoid
		1132	// the overhead of decode_str + hv_store_ent.
		1133	{
971	SV key, value;	1134	SV *value;
		1135	char *p = dec->cur;
		1136	char *e = p + 24; // only try up to 24 bytes
972		1137
973	decode_ws (dec); EXPECT_CH ('"');	1138	for (;;)
974
975	key = decode_str (dec);
976	if (!key)
977	goto fail;
978
979	decode_ws (dec); EXPECT_CH (':');
980
981	value = decode_sv (dec);
982	if (!value)
983	{	1139	{
		1140	// the >= 0x80 is true on most architectures
		1141	if (p == e \|\| p < 0x20 \|\| p >= 0x80 \|\| *p == '\\')
		1142	{
		1143	// slow path, back up and use decode_str
		1144	SV *key = decode_str (dec);
		1145	if (!key)
		1146	goto fail;
		1147
		1148	decode_ws (dec); EXPECT_CH (':');
		1149
		1150	decode_ws (dec);
		1151	value = decode_sv (dec);
		1152	if (!value)
		1153	{
		1154	SvREFCNT_dec (key);
		1155	goto fail;
		1156	}
		1157
		1158	hv_store_ent (hv, key, value, 0);
984	SvREFCNT_dec (key);	1159	SvREFCNT_dec (key);
		1160
		1161	break;
		1162	}
		1163	else if (*p == '"')
		1164	{
		1165	// fast path, got a simple key
		1166	char *key = dec->cur;
		1167	int len = p - key;
		1168	dec->cur = p + 1;
		1169
		1170	decode_ws (dec); EXPECT_CH (':');
		1171
		1172	decode_ws (dec);
		1173	value = decode_sv (dec);
		1174	if (!value)
985	goto fail;	1175	goto fail;
		1176
		1177	hv_store (hv, key, len, value, 0);
		1178
		1179	break;
		1180	}
		1181
		1182	++p;
986	}	1183	}
987		1184	}
988	hv_store_ent (hv, key, value, 0);
989	SvREFCNT_dec (key);
990		1185
991	decode_ws (dec);	1186	decode_ws (dec);
992		1187
993	if (*dec->cur == '}')	1188	if (*dec->cur == '}')
994	{	1189	{
…		…
998		1193
999	if (*dec->cur != ',')	1194	if (*dec->cur != ',')
1000	ERR (", or } expected while parsing object/hash");	1195	ERR (", or } expected while parsing object/hash");
1001		1196
1002	++dec->cur;	1197	++dec->cur;
		1198
		1199	decode_ws (dec);
		1200
		1201	if (*dec->cur == '}' && dec->json.flags & F_RELAXED)
		1202	{
		1203	++dec->cur;
		1204	break;
		1205	}
1003	}	1206	}
1004		1207
1005	DEC_DEC_DEPTH;	1208	DEC_DEC_DEPTH;
1006	return newRV_noinc ((SV *)hv);	1209	sv = newRV_noinc ((SV *)hv);
		1210
		1211	// check filter callbacks
		1212	if (dec->json.flags & F_HOOK)
		1213	{
		1214	if (dec->json.cb_sk_object && HvKEYS (hv) == 1)
		1215	{
		1216	HE cb, he;
		1217
		1218	hv_iterinit (hv);
		1219	he = hv_iternext (hv);
		1220	hv_iterinit (hv);
		1221
		1222	// the next line creates a mortal sv each time its called.
		1223	// might want to optimise this for common cases.
		1224	cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0);
		1225
		1226	if (cb)
		1227	{
		1228	dSP;
		1229	int count;
		1230
		1231	ENTER; SAVETMPS; PUSHMARK (SP);
		1232	XPUSHs (HeVAL (he));
		1233
		1234	PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN;
		1235
		1236	if (count == 1)
		1237	{
		1238	sv = newSVsv (POPs);
		1239	FREETMPS; LEAVE;
		1240	return sv;
		1241	}
		1242
		1243	FREETMPS; LEAVE;
		1244	}
		1245	}
		1246
		1247	if (dec->json.cb_object)
		1248	{
		1249	dSP;
		1250	int count;
		1251
		1252	ENTER; SAVETMPS; PUSHMARK (SP);
		1253	XPUSHs (sv_2mortal (sv));
		1254
		1255	PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN;
		1256
		1257	if (count == 1)
		1258	{
		1259	sv = newSVsv (POPs);
		1260	FREETMPS; LEAVE;
		1261	return sv;
		1262	}
		1263
		1264	SvREFCNT_inc (sv);
		1265	FREETMPS; LEAVE;
		1266	}
		1267	}
		1268
		1269	return sv;
1007		1270
1008	fail:	1271	fail:
1009	SvREFCNT_dec (hv);	1272	SvREFCNT_dec (hv);
1010	DEC_DEC_DEPTH;	1273	DEC_DEC_DEPTH;
1011	return 0;	1274	return 0;
1012	}	1275	}
1013		1276
1014	static SV *	1277	static SV *
1015	decode_sv (dec_t *dec)	1278	decode_sv (dec_t *dec)
1016	{	1279	{
1017	decode_ws (dec);
1018
1019	// the beauty of JSON: you need exactly one character lookahead	1280	// the beauty of JSON: you need exactly one character lookahead
1020	// to parse anything.	1281	// to parse anything.
1021	switch (*dec->cur)	1282	switch (*dec->cur)
1022	{	1283	{
1023	case '"': ++dec->cur; return decode_str (dec);	1284	case '"': ++dec->cur; return decode_str (dec);
…		…
1031		1292
1032	case 't':	1293	case 't':
1033	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))	1294	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))
1034	{	1295	{
1035	dec->cur += 4;	1296	dec->cur += 4;
1036	return newSViv (1);	1297	#if JSON_SLOW
		1298	json_true = get_sv ("JSON::XS::true", 1); SvREADONLY_on (json_true);
		1299	#endif
		1300	return SvREFCNT_inc (json_true);
1037	}	1301	}
1038	else	1302	else
1039	ERR ("'true' expected");	1303	ERR ("'true' expected");
1040		1304
1041	break;	1305	break;
1042		1306
1043	case 'f':	1307	case 'f':
1044	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))	1308	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))
1045	{	1309	{
1046	dec->cur += 5;	1310	dec->cur += 5;
1047	return newSViv (0);	1311	#if JSON_SLOW
		1312	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);
		1313	#endif
		1314	return SvREFCNT_inc (json_false);
1048	}	1315	}
1049	else	1316	else
1050	ERR ("'false' expected");	1317	ERR ("'false' expected");
1051		1318
1052	break;	1319	break;
…		…
1070	fail:	1337	fail:
1071	return 0;	1338	return 0;
1072	}	1339	}
1073		1340
1074	static SV *	1341	static SV *
1075	decode_json (SV string, U32 flags, UV offset_return)	1342	decode_json (SV string, JSON json, UV *offset_return)
1076	{	1343	{
1077	dec_t dec;	1344	dec_t dec;
1078	UV offset;	1345	UV offset;
1079	SV *sv;	1346	SV *sv;
1080		1347
1081	SvGETMAGIC (string);	1348	SvGETMAGIC (string);
1082	SvUPGRADE (string, SVt_PV);	1349	SvUPGRADE (string, SVt_PV);
1083		1350
		1351	if (json->flags & F_MAXSIZE && SvCUR (string) > DEC_SIZE (json->flags))
		1352	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",
		1353	(unsigned long)SvCUR (string), (unsigned long)DEC_SIZE (json->flags));
		1354
1084	if (flags & F_UTF8)	1355	if (json->flags & F_UTF8)
1085	sv_utf8_downgrade (string, 0);	1356	sv_utf8_downgrade (string, 0);
1086	else	1357	else
1087	sv_utf8_upgrade (string);	1358	sv_utf8_upgrade (string);
1088		1359
1089	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP	1360	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP
1090		1361
1091	dec.flags = flags;	1362	dec.json = *json;
1092	dec.cur = SvPVX (string);	1363	dec.cur = SvPVX (string);
1093	dec.end = SvEND (string);	1364	dec.end = SvEND (string);
1094	dec.err = 0;	1365	dec.err = 0;
1095	dec.depth = 0;	1366	dec.depth = 0;
1096	dec.maxdepth = DEC_DEPTH (dec.flags);	1367	dec.maxdepth = DEC_DEPTH (dec.json.flags);
		1368
		1369	if (dec.json.cb_object \|\| dec.json.cb_sk_object)
		1370	dec.json.flags \|= F_HOOK;
1097		1371
1098	*dec.end = 0; // this should basically be a nop, too, but make sure it's there	1372	*dec.end = 0; // this should basically be a nop, too, but make sure it's there
		1373
		1374	decode_ws (&dec);
1099	sv = decode_sv (&dec);	1375	sv = decode_sv (&dec);
1100		1376
1101	if (!(offset_return \|\| !sv))	1377	if (!(offset_return \|\| !sv))
1102	{	1378	{
1103	// check for trailing garbage	1379	// check for trailing garbage
…		…
1111	}	1387	}
1112	}	1388	}
1113		1389
1114	if (offset_return \|\| !sv)	1390	if (offset_return \|\| !sv)
1115	{	1391	{
1116	offset = dec.flags & F_UTF8	1392	offset = dec.json.flags & F_UTF8
1117	? dec.cur - SvPVX (string)	1393	? dec.cur - SvPVX (string)
1118	: utf8_distance (dec.cur, SvPVX (string));	1394	: utf8_distance (dec.cur, SvPVX (string));
1119		1395
1120	if (offset_return)	1396	if (offset_return)
1121	*offset_return = offset;	1397	*offset_return = offset;
…		…
1140	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");	1416	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");
1141	}	1417	}
1142		1418
1143	sv = sv_2mortal (sv);	1419	sv = sv_2mortal (sv);
1144		1420
1145	if (!(dec.flags & F_ALLOW_NONREF) && !SvROK (sv))	1421	if (!(dec.json.flags & F_ALLOW_NONREF) && !SvROK (sv))
1146	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");	1422	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");
1147		1423
1148	return sv;	1424	return sv;
1149	}	1425	}
1150		1426
…		…
1162	i >= '0' && i <= '9' ? i - '0'	1438	i >= '0' && i <= '9' ? i - '0'
1163	: i >= 'a' && i <= 'f' ? i - 'a' + 10	1439	: i >= 'a' && i <= 'f' ? i - 'a' + 10
1164	: i >= 'A' && i <= 'F' ? i - 'A' + 10	1440	: i >= 'A' && i <= 'F' ? i - 'A' + 10
1165	: -1;	1441	: -1;
1166		1442
1167	json_stash = gv_stashpv ("JSON::XS", 1);	1443	json_stash = gv_stashpv ("JSON::XS" , 1);
		1444	json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1);
		1445
		1446	json_true = get_sv ("JSON::XS::true" , 1); SvREADONLY_on (json_true );
		1447	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);
1168	}	1448	}
1169		1449
1170	PROTOTYPES: DISABLE	1450	PROTOTYPES: DISABLE
1171		1451
1172	SV new (char dummy)	1452	void CLONE (...)
1173	CODE:	1453	CODE:
1174	RETVAL = sv_bless (newRV_noinc (newSVuv (F_DEFAULT)), json_stash);	1454	json_stash = 0;
		1455	json_boolean_stash = 0;
		1456
		1457	void new (char *klass)
		1458	PPCODE:
		1459	{
		1460	SV *pv = NEWSV (0, sizeof (JSON));
		1461	SvPOK_only (pv);
		1462	Zero (SvPVX (pv), 1, JSON);
		1463	((JSON *)SvPVX (pv))->flags = F_DEFAULT;
		1464	XPUSHs (sv_2mortal (sv_bless (
		1465	newRV_noinc (pv),
		1466	strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1)
		1467	)));
		1468	}
		1469
		1470	void ascii (JSON *self, int enable = 1)
		1471	ALIAS:
		1472	ascii = F_ASCII
		1473	latin1 = F_LATIN1
		1474	utf8 = F_UTF8
		1475	indent = F_INDENT
		1476	canonical = F_CANONICAL
		1477	space_before = F_SPACE_BEFORE
		1478	space_after = F_SPACE_AFTER
		1479	pretty = F_PRETTY
		1480	allow_nonref = F_ALLOW_NONREF
		1481	shrink = F_SHRINK
		1482	allow_blessed = F_ALLOW_BLESSED
		1483	convert_blessed = F_CONV_BLESSED
		1484	relaxed = F_RELAXED
		1485	PPCODE:
		1486	{
		1487	if (enable)
		1488	self->flags \|= ix;
		1489	else
		1490	self->flags &= ~ix;
		1491
		1492	XPUSHs (ST (0));
		1493	}
		1494
		1495	void get_ascii (JSON *self)
		1496	ALIAS:
		1497	get_ascii = F_ASCII
		1498	get_latin1 = F_LATIN1
		1499	get_utf8 = F_UTF8
		1500	get_indent = F_INDENT
		1501	get_canonical = F_CANONICAL
		1502	get_space_before = F_SPACE_BEFORE
		1503	get_space_after = F_SPACE_AFTER
		1504	get_allow_nonref = F_ALLOW_NONREF
		1505	get_shrink = F_SHRINK
		1506	get_allow_blessed = F_ALLOW_BLESSED
		1507	get_convert_blessed = F_CONV_BLESSED
		1508	get_relaxed = F_RELAXED
		1509	PPCODE:
		1510	XPUSHs (boolSV (self->flags & ix));
		1511
		1512	void max_depth (JSON *self, UV max_depth = 0x80000000UL)
		1513	PPCODE:
		1514	{
		1515	UV log2 = 0;
		1516
		1517	if (max_depth > 0x80000000UL) max_depth = 0x80000000UL;
		1518
		1519	while ((1UL << log2) < max_depth)
		1520	++log2;
		1521
		1522	self->flags = self->flags & ~F_MAXDEPTH \| (log2 << S_MAXDEPTH);
		1523
		1524	XPUSHs (ST (0));
		1525	}
		1526
		1527	U32 get_max_depth (JSON *self)
		1528	CODE:
		1529	RETVAL = DEC_DEPTH (self->flags);
1175	OUTPUT:	1530	OUTPUT:
1176	RETVAL	1531	RETVAL
1177		1532
1178	SV ascii (SV self, int enable = 1)	1533	void max_size (JSON *self, UV max_size = 0)
1179	ALIAS:	1534	PPCODE:
1180	ascii = F_ASCII	1535	{
1181	latin1 = F_LATIN1	1536	UV log2 = 0;
1182	utf8 = F_UTF8	1537
1183	indent = F_INDENT	1538	if (max_size > 0x80000000UL) max_size = 0x80000000UL;
1184	canonical = F_CANONICAL	1539	if (max_size == 1) max_size = 2;
1185	space_before = F_SPACE_BEFORE	1540
1186	space_after = F_SPACE_AFTER	1541	while ((1UL << log2) < max_size)
1187	pretty = F_PRETTY	1542	++log2;
1188	allow_nonref = F_ALLOW_NONREF	1543
1189	shrink = F_SHRINK	1544	self->flags = self->flags & ~F_MAXSIZE \| (log2 << S_MAXSIZE);
		1545
		1546	XPUSHs (ST (0));
		1547	}
		1548
		1549	int get_max_size (JSON *self)
1190	CODE:	1550	CODE:
1191	{	1551	RETVAL = DEC_SIZE (self->flags);
1192	UV *uv = SvJSON (self);
1193	if (enable)
1194	*uv \|= ix;
1195	else
1196	*uv &= ~ix;
1197
1198	RETVAL = newSVsv (self);
1199	}
1200	OUTPUT:	1552	OUTPUT:
1201	RETVAL	1553	RETVAL
1202		1554
1203	SV max_depth (SV self, UV max_depth = 0x80000000UL)	1555	void filter_json_object (JSON self, SV cb = &PL_sv_undef)
1204	CODE:
1205	{
1206	UV *uv = SvJSON (self);
1207	UV log2 = 0;
1208
1209	if (max_depth > 0x80000000UL) max_depth = 0x80000000UL;
1210
1211	while ((1UL << log2) < max_depth)
1212	++log2;
1213
1214	uv = uv & ~F_MAXDEPTH \| (log2 << S_MAXDEPTH);
1215
1216	RETVAL = newSVsv (self);
1217	}
1218	OUTPUT:
1219	RETVAL
1220
1221	void encode (SV self, SV scalar)
1222	PPCODE:	1556	PPCODE:
1223	XPUSHs (encode_json (scalar, *SvJSON (self)));	1557	{
		1558	SvREFCNT_dec (self->cb_object);
		1559	self->cb_object = SvOK (cb) ? newSVsv (cb) : 0;
1224		1560
1225	void decode (SV self, SV jsonstr)	1561	XPUSHs (ST (0));
		1562	}
		1563
		1564	void filter_json_single_key_object (JSON self, SV key, SV *cb = &PL_sv_undef)
1226	PPCODE:	1565	PPCODE:
		1566	{
		1567	if (!self->cb_sk_object)
		1568	self->cb_sk_object = newHV ();
		1569
		1570	if (SvOK (cb))
		1571	hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0);
		1572	else
		1573	{
		1574	hv_delete_ent (self->cb_sk_object, key, G_DISCARD, 0);
		1575
		1576	if (!HvKEYS (self->cb_sk_object))
		1577	{
		1578	SvREFCNT_dec (self->cb_sk_object);
		1579	self->cb_sk_object = 0;
		1580	}
		1581	}
		1582
		1583	XPUSHs (ST (0));
		1584	}
		1585
		1586	void encode (JSON self, SV scalar)
		1587	PPCODE:
		1588	XPUSHs (encode_json (scalar, self));
		1589
		1590	void decode (JSON self, SV jsonstr)
		1591	PPCODE:
1227	XPUSHs (decode_json (jsonstr, *SvJSON (self), 0));	1592	XPUSHs (decode_json (jsonstr, self, 0));
1228		1593
1229	void decode_prefix (SV self, SV jsonstr)	1594	void decode_prefix (JSON self, SV jsonstr)
1230	PPCODE:	1595	PPCODE:
1231	{	1596	{
1232	UV offset;	1597	UV offset;
1233	EXTEND (SP, 2);	1598	EXTEND (SP, 2);
1234	PUSHs (decode_json (jsonstr, *SvJSON (self), &offset));	1599	PUSHs (decode_json (jsonstr, self, &offset));
1235	PUSHs (sv_2mortal (newSVuv (offset)));	1600	PUSHs (sv_2mortal (newSVuv (offset)));
1236	}	1601	}
1237		1602
		1603	void DESTROY (JSON *self)
		1604	CODE:
		1605	SvREFCNT_dec (self->cb_sk_object);
		1606	SvREFCNT_dec (self->cb_object);
		1607
1238	PROTOTYPES: ENABLE	1608	PROTOTYPES: ENABLE
1239		1609
1240	void to_json (SV *scalar)	1610	void encode_json (SV *scalar)
1241	ALIAS:
1242	objToJson = 0
1243	PPCODE:	1611	PPCODE:
		1612	{
		1613	JSON json = { F_DEFAULT \| F_UTF8 };
1244	XPUSHs (encode_json (scalar, F_DEFAULT \| F_UTF8));	1614	XPUSHs (encode_json (scalar, &json));
		1615	}
1245		1616
1246	void from_json (SV *jsonstr)	1617	void decode_json (SV *jsonstr)
1247	ALIAS:
1248	jsonToObj = 0
1249	PPCODE:	1618	PPCODE:
		1619	{
		1620	JSON json = { F_DEFAULT \| F_UTF8 };
1250	XPUSHs (decode_json (jsonstr, F_DEFAULT \| F_UTF8, 0));	1621	XPUSHs (decode_json (jsonstr, &json, 0));
		1622	}
1251		1623

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Comparing JSON-XS/XS.xs (file contents): Revision 1.41 by root, Sat Jun 23 22:53:16 2007 UTC vs. Revision 1.70 by root, Wed Mar 19 00:44:54 2008 UTC

Diff Legend

Comparing JSON-XS/XS.xs (file contents):
Revision 1.41 by root, Sat Jun 23 22:53:16 2007 UTC vs.
Revision 1.70 by root, Wed Mar 19 00:44:54 2008 UTC