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

Comparing JSON-XS/XS.xs (file contents):
Revision 1.38 by root, Mon Jun 11 03:18:07 2007 UTC vs.
Revision 1.61 by root, Sun Aug 26 21:56:47 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
23	#define F_MAXDEPTH 0xf8000000UL	32	#define F_MAXDEPTH 0xf8000000UL
24	#define S_MAXDEPTH 27	33	#define S_MAXDEPTH 27
		34	#define F_MAXSIZE 0x01f00000UL
		35	#define S_MAXSIZE 20
		36	#define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing
25		37
26	#define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH))	38	#define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH))
27		39	#define DEC_SIZE(flags) (1UL << ((flags & F_MAXSIZE ) >> S_MAXSIZE ))
28	// F_SELFCONVERT? <=> to_json/toJson
29	// F_BLESSED? <=> { $__class__$ => }
30		40
31	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER	41	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER
32	#define F_DEFAULT (9UL << S_MAXDEPTH)	42	#define F_DEFAULT (9UL << S_MAXDEPTH)
33		43
34	#define INIT_SIZE 32 // initial scalar size to be allocated	44	#define INIT_SIZE 32 // initial scalar size to be allocated
48	#endif	58	#endif
49		59
50	#define expect_false(expr) expect ((expr) != 0, 0)	60	#define expect_false(expr) expect ((expr) != 0, 0)
51	#define expect_true(expr) expect ((expr) != 0, 1)	61	#define expect_true(expr) expect ((expr) != 0, 1)
52		62
		63	#ifdef USE_ITHREADS
		64	# define JSON_SLOW 1
		65	# define JSON_STASH (json_stash ? json_stash : gv_stashpv ("JSON::XS", 1))
		66	#else
		67	# define JSON_SLOW 0
		68	# define JSON_STASH json_stash
		69	#endif
		70
53	static HV *json_stash; // JSON::XS::	71	static HV json_stash, json_boolean_stash; // JSON::XS::
		72	static SV json_true, json_false;
		73
		74	typedef struct {
		75	U32 flags;
		76	SV *cb_object;
		77	HV *cb_sk_object;
		78	} JSON;
54		79
55	/////////////////////////////////////////////////////////////////////////////	80	/////////////////////////////////////////////////////////////////////////////
56	// utility functions	81	// utility functions
57		82
58	static UV *	83	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)	84	shrink (SV *sv)
69	{	85	{
70	sv_utf8_downgrade (sv, 1);	86	sv_utf8_downgrade (sv, 1);
71	if (SvLEN (sv) > SvCUR (sv) + 1)	87	if (SvLEN (sv) > SvCUR (sv) + 1)
72	{	88	{
…		…
107	typedef struct	123	typedef struct
108	{	124	{
109	char *cur; // SvPVX (sv) + current output position	125	char *cur; // SvPVX (sv) + current output position
110	char *end; // SvEND (sv)	126	char *end; // SvEND (sv)
111	SV *sv; // result scalar	127	SV *sv; // result scalar
112	U32 flags; // F_*	128	JSON json;
113	U32 indent; // indentation level	129	U32 indent; // indentation level
114	U32 maxdepth; // max. indentation/recursion level	130	U32 maxdepth; // max. indentation/recursion level
115	} enc_t;	131	} enc_t;
116		132
117	inline void	133	inline void
…		…
178	STRLEN clen;	194	STRLEN clen;
179	UV uch;	195	UV uch;
180		196
181	if (is_utf8)	197	if (is_utf8)
182	{	198	{
183	//uch = utf8n_to_uvuni (str, end - str, &clen, UTF8_CHECK_ONLY);
184	uch = decode_utf8 (str, end - str, &clen);	199	uch = decode_utf8 (str, end - str, &clen);
185	if (clen == (STRLEN)-1)	200	if (clen == (STRLEN)-1)
186	croak ("malformed or illegal unicode character in string [%.11s], cannot convert to JSON", str);	201	croak ("malformed or illegal unicode character in string [%.11s], cannot convert to JSON", str);
187	}	202	}
188	else	203	else
…		…
192	}	207	}
193		208
194	if (uch > 0x10FFFFUL)	209	if (uch > 0x10FFFFUL)
195	croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);	210	croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);
196		211
197	if (uch < 0x80 \|\| enc->flags & F_ASCII \|\| (enc->flags & F_LATIN1 && uch > 0xFF))	212	if (uch < 0x80 \|\| enc->json.flags & F_ASCII \|\| (enc->json.flags & F_LATIN1 && uch > 0xFF))
198	{	213	{
199	if (uch > 0xFFFFUL)	214	if (uch > 0xFFFFUL)
200	{	215	{
201	need (enc, len += 11);	216	need (enc, len += 11);
202	sprintf (enc->cur, "\\u%04x\\u%04x",	217	sprintf (enc->cur, "\\u%04x\\u%04x",
…		…
216	*enc->cur++ = hexdigit [(uch >> 0) & 15];	231	*enc->cur++ = hexdigit [(uch >> 0) & 15];
217	}	232	}
218		233
219	str += clen;	234	str += clen;
220	}	235	}
221	else if (enc->flags & F_LATIN1)	236	else if (enc->json.flags & F_LATIN1)
222	{	237	{
223	*enc->cur++ = uch;	238	*enc->cur++ = uch;
224	str += clen;	239	str += clen;
225	}	240	}
226	else if (is_utf8)	241	else if (is_utf8)
…		…
247	}	262	}
248		263
249	inline void	264	inline void
250	encode_indent (enc_t *enc)	265	encode_indent (enc_t *enc)
251	{	266	{
252	if (enc->flags & F_INDENT)	267	if (enc->json.flags & F_INDENT)
253	{	268	{
254	int spaces = enc->indent * INDENT_STEP;	269	int spaces = enc->indent * INDENT_STEP;
255		270
256	need (enc, spaces);	271	need (enc, spaces);
257	memset (enc->cur, ' ', spaces);	272	memset (enc->cur, ' ', spaces);
…		…
267	}	282	}
268		283
269	inline void	284	inline void
270	encode_nl (enc_t *enc)	285	encode_nl (enc_t *enc)
271	{	286	{
272	if (enc->flags & F_INDENT)	287	if (enc->json.flags & F_INDENT)
273	{	288	{
274	need (enc, 1);	289	need (enc, 1);
275	encode_ch (enc, '\n');	290	encode_ch (enc, '\n');
276	}	291	}
277	}	292	}
…		…
279	inline void	294	inline void
280	encode_comma (enc_t *enc)	295	encode_comma (enc_t *enc)
281	{	296	{
282	encode_ch (enc, ',');	297	encode_ch (enc, ',');
283		298
284	if (enc->flags & F_INDENT)	299	if (enc->json.flags & F_INDENT)
285	encode_nl (enc);	300	encode_nl (enc);
286	else if (enc->flags & F_SPACE_AFTER)	301	else if (enc->json.flags & F_SPACE_AFTER)
287	encode_space (enc);	302	encode_space (enc);
288	}	303	}
289		304
290	static void encode_sv (enc_t enc, SV sv);	305	static void encode_sv (enc_t enc, SV sv);
291		306
…		…
300	encode_ch (enc, '['); encode_nl (enc);	315	encode_ch (enc, '['); encode_nl (enc);
301	++enc->indent;	316	++enc->indent;
302		317
303	for (i = 0; i <= len; ++i)	318	for (i = 0; i <= len; ++i)
304	{	319	{
		320	SV **svp = av_fetch (av, i, 0);
		321
305	encode_indent (enc);	322	encode_indent (enc);
306	encode_sv (enc, *av_fetch (av, i, 0));	323
		324	if (svp)
		325	encode_sv (enc, *svp);
		326	else
		327	encode_str (enc, "null", 4, 0);
307		328
308	if (i < len)	329	if (i < len)
309	encode_comma (enc);	330	encode_comma (enc);
310	}	331	}
311		332
…		…
314	--enc->indent;	335	--enc->indent;
315	encode_indent (enc); encode_ch (enc, ']');	336	encode_indent (enc); encode_ch (enc, ']');
316	}	337	}
317		338
318	static void	339	static void
319	encode_he (enc_t enc, HE he)	340	encode_hk (enc_t enc, HE he)
320	{	341	{
321	encode_ch (enc, '"');	342	encode_ch (enc, '"');
322		343
323	if (HeKLEN (he) == HEf_SVKEY)	344	if (HeKLEN (he) == HEf_SVKEY)
324	{	345	{
…		…
334	else	355	else
335	encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he));	356	encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he));
336		357
337	encode_ch (enc, '"');	358	encode_ch (enc, '"');
338		359
339	if (enc->flags & F_SPACE_BEFORE) encode_space (enc);	360	if (enc->json.flags & F_SPACE_BEFORE) encode_space (enc);
340	encode_ch (enc, ':');	361	encode_ch (enc, ':');
341	if (enc->flags & F_SPACE_AFTER ) encode_space (enc);	362	if (enc->json.flags & F_SPACE_AFTER ) encode_space (enc);
342	encode_sv (enc, HeVAL (he));
343	}	363	}
344		364
345	// compare hash entries, used when all keys are bytestrings	365	// compare hash entries, used when all keys are bytestrings
346	static int	366	static int
347	he_cmp_fast (const void a_, const void b_)	367	he_cmp_fast (const void a_, const void b_)
…		…
352	HE b = (HE **)b_;	372	HE b = (HE **)b_;
353		373
354	STRLEN la = HeKLEN (a);	374	STRLEN la = HeKLEN (a);
355	STRLEN lb = HeKLEN (b);	375	STRLEN lb = HeKLEN (b);
356		376
357	if (!(cmp = memcmp (HeKEY (a), HeKEY (b), la < lb ? la : lb)))	377	if (!(cmp = memcmp (HeKEY (b), HeKEY (a), lb < la ? lb : la)))
358	cmp = la - lb;	378	cmp = lb - la;
359		379
360	return cmp;	380	return cmp;
361	}	381	}
362		382
363	// compare hash entries, used when some keys are sv's or utf-x	383	// compare hash entries, used when some keys are sv's or utf-x
364	static int	384	static int
365	he_cmp_slow (const void a, const void b)	385	he_cmp_slow (const void a, const void b)
366	{	386	{
367	return sv_cmp (HeSVKEY_force ((HE )a), HeSVKEY_force ((HE **)b));	387	return sv_cmp (HeSVKEY_force ((HE )b), HeSVKEY_force ((HE **)a));
368	}	388	}
369		389
370	static void	390	static void
371	encode_hv (enc_t enc, HV hv)	391	encode_hv (enc_t enc, HV hv)
372	{	392	{
		393	HE *he;
373	int count, i;	394	int count;
374		395
375	if (enc->indent >= enc->maxdepth)	396	if (enc->indent >= enc->maxdepth)
376	croak ("data structure too deep (hit recursion limit)");	397	croak ("data structure too deep (hit recursion limit)");
377		398
378	encode_ch (enc, '{'); encode_nl (enc); ++enc->indent;	399	encode_ch (enc, '{'); encode_nl (enc); ++enc->indent;
379		400
380	if ((count = hv_iterinit (hv)))
381	{
382	// for canonical output we have to sort by keys first	401	// for canonical output we have to sort by keys first
383	// actually, this is mostly due to the stupid so-called	402	// actually, this is mostly due to the stupid so-called
384	// security workaround added somewhere in 5.8.x.	403	// security workaround added somewhere in 5.8.x.
385	// that randomises hash orderings	404	// that randomises hash orderings
386	if (enc->flags & F_CANONICAL)	405	if (enc->json.flags & F_CANONICAL)
		406	{
		407	int count = hv_iterinit (hv);
		408
		409	if (SvMAGICAL (hv))
387	{	410	{
		411	// need to count by iterating. could improve by dynamically building the vector below
		412	// but I don't care for the speed of this special case.
		413	// note also that we will run into undefined behaviour when the two iterations
		414	// do not result in the same count, something I might care for in some later release.
		415
		416	count = 0;
		417	while (hv_iternext (hv))
		418	++count;
		419
		420	hv_iterinit (hv);
		421	}
		422
		423	if (count)
		424	{
388	int fast = 1;	425	int i, fast = 1;
389	HE *he;
390	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	426	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)
391	HE *hes = _alloca (count sizeof (HE));	427	HE *hes = _alloca (count sizeof (HE));
392	#else	428	#else
393	HE *hes [count]; // if your compiler dies here, you need to enable C99 mode	429	HE *hes [count]; // if your compiler dies here, you need to enable C99 mode
394	#endif	430	#endif
…		…
421		457
422	FREETMPS;	458	FREETMPS;
423	LEAVE;	459	LEAVE;
424	}	460	}
425		461
426	for (i = 0; i < count; ++i)	462	while (count--)
427	{	463	{
428	encode_indent (enc);	464	encode_indent (enc);
		465	he = hes [count];
429	encode_he (enc, hes [i]);	466	encode_hk (enc, he);
		467	encode_sv (enc, SvMAGICAL (hv) ? hv_iterval (hv, he) : HeVAL (he));
430		468
431	if (i < count - 1)	469	if (count)
432	encode_comma (enc);	470	encode_comma (enc);
433	}	471	}
434		472	}
		473	}
		474	else
		475	{
		476	if (hv_iterinit (hv) \|\| SvMAGICAL (hv))
		477	if ((he = hv_iternext (hv)))
		478	for (;;)
		479	{
435	encode_nl (enc);	480	encode_indent (enc);
		481	encode_hk (enc, he);
		482	encode_sv (enc, SvMAGICAL (hv) ? hv_iterval (hv, he) : HeVAL (he));
		483
		484	if (!(he = hv_iternext (hv)))
		485	break;
		486
		487	encode_comma (enc);
		488	}
		489	}
		490
		491	encode_nl (enc);
		492
		493	--enc->indent; encode_indent (enc); encode_ch (enc, '}');
		494	}
		495
		496	// encode objects, arrays and special \0=false and \1=true values.
		497	static void
		498	encode_rv (enc_t enc, SV sv)
		499	{
		500	svtype svt;
		501
		502	SvGETMAGIC (sv);
		503	svt = SvTYPE (sv);
		504
		505	if (expect_false (SvOBJECT (sv)))
		506	{
		507	HV *stash = !JSON_SLOW \|\| json_boolean_stash
		508	? json_boolean_stash
		509	: gv_stashpv ("JSON::XS::Boolean", 1);
		510
		511	if (SvSTASH (sv) == stash)
		512	{
		513	if (SvIV (sv))
		514	encode_str (enc, "true", 4, 0);
		515	else
		516	encode_str (enc, "false", 5, 0);
436	}	517	}
437	else	518	else
438	{	519	{
439	HE *he = hv_iternext (hv);	520	#if 0
440		521	if (0 && sv_derived_from (rv, "JSON::Literal"))
441	for (;;)
442	{
443	encode_indent (enc);
444	encode_he (enc, he);
445
446	if (!(he = hv_iternext (hv)))
447	break;
448
449	encode_comma (enc);
450	}	522	{
		523	// not yet
		524	}
		525	#endif
		526	if (enc->json.flags & F_CONV_BLESSED)
		527	{
		528	// we re-bless the reference to get overload and other niceties right
		529	GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 0);
451		530
		531	if (to_json)
		532	{
		533	dSP;
		534
		535	ENTER; SAVETMPS; PUSHMARK (SP);
		536	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv)));
		537
		538	// calling with G_SCALAR ensures that we always get a 1 return value
		539	PUTBACK;
		540	call_sv ((SV *)GvCV (to_json), G_SCALAR);
		541	SPAGAIN;
		542
		543	// catch this surprisingly common error
		544	if (SvROK (TOPs) && SvRV (TOPs) == sv)
		545	croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
		546
		547	sv = POPs;
		548	PUTBACK;
		549
452	encode_nl (enc);	550	encode_sv (enc, sv);
		551
		552	FREETMPS; LEAVE;
		553	}
		554	else if (enc->json.flags & F_ALLOW_BLESSED)
		555	encode_str (enc, "null", 4, 0);
		556	else
		557	croak ("encountered object '%s', but neither allow_blessed enabled nor TO_JSON method available on it",
		558	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
		559	}
		560	else if (enc->json.flags & F_ALLOW_BLESSED)
		561	encode_str (enc, "null", 4, 0);
		562	else
		563	croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled",
		564	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
453	}	565	}
454	}	566	}
455
456	--enc->indent; encode_indent (enc); encode_ch (enc, '}');
457	}
458
459	// encode objects, arrays and special \0=false and \1=true values.
460	static void
461	encode_rv (enc_t enc, SV sv)
462	{
463	svtype svt;
464
465	SvGETMAGIC (sv);
466	svt = SvTYPE (sv);
467
468	if (svt == SVt_PVHV)	567	else if (svt == SVt_PVHV)
469	encode_hv (enc, (HV *)sv);	568	encode_hv (enc, (HV *)sv);
470	else if (svt == SVt_PVAV)	569	else if (svt == SVt_PVAV)
471	encode_av (enc, (AV *)sv);	570	encode_av (enc, (AV *)sv);
472	else if (svt < SVt_PVAV)	571	else if (svt < SVt_PVAV)
473	{	572	{
474	if (SvNIOK (sv) && SvIV (sv) == 0)	573	STRLEN len = 0;
		574	char *pv = svt ? SvPV (sv, len) : 0;
		575
		576	if (len == 1 && *pv == '1')
		577	encode_str (enc, "true", 4, 0);
		578	else if (len == 1 && *pv == '0')
475	encode_str (enc, "false", 5, 0);	579	encode_str (enc, "false", 5, 0);
476	else if (SvNIOK (sv) && SvIV (sv) == 1)
477	encode_str (enc, "true", 4, 0);
478	else	580	else
479	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",	581	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",
480	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	582	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
481	}	583	}
482	else	584	else
…		…
497	encode_str (enc, str, len, SvUTF8 (sv));	599	encode_str (enc, str, len, SvUTF8 (sv));
498	encode_ch (enc, '"');	600	encode_ch (enc, '"');
499	}	601	}
500	else if (SvNOKp (sv))	602	else if (SvNOKp (sv))
501	{	603	{
		604	// trust that perl will do the right thing w.r.t. JSON syntax.
502	need (enc, NV_DIG + 32);	605	need (enc, NV_DIG + 32);
503	Gconvert (SvNVX (sv), NV_DIG, 0, enc->cur);	606	Gconvert (SvNVX (sv), NV_DIG, 0, enc->cur);
504	enc->cur += strlen (enc->cur);	607	enc->cur += strlen (enc->cur);
505	}	608	}
506	else if (SvIOKp (sv))	609	else if (SvIOKp (sv))
507	{	610	{
508	// we assume we can always read an IV as a UV	611	// we assume we can always read an IV as a UV
509	if (SvUV (sv) & ~(UV)0x7fff)	612	if (SvUV (sv) & ~(UV)0x7fff)
510	{	613	{
		614	// large integer, use the (rather slow) snprintf way.
511	need (enc, sizeof (UV) * 3);	615	need (enc, sizeof (UV) * 3);
512	enc->cur +=	616	enc->cur +=
513	SvIsUV(sv)	617	SvIsUV(sv)
514	? snprintf (enc->cur, sizeof (UV) * 3, "%"UVuf, (UV)SvUVX (sv))	618	? snprintf (enc->cur, sizeof (UV) * 3, "%"UVuf, (UV)SvUVX (sv))
515	: snprintf (enc->cur, sizeof (UV) * 3, "%"IVdf, (IV)SvIVX (sv));	619	: snprintf (enc->cur, sizeof (UV) * 3, "%"IVdf, (IV)SvIVX (sv));
…		…
518	{	622	{
519	// optimise the "small number case"	623	// optimise the "small number case"
520	// code will likely be branchless and use only a single multiplication	624	// code will likely be branchless and use only a single multiplication
521	I32 i = SvIV (sv);	625	I32 i = SvIV (sv);
522	U32 u;	626	U32 u;
		627	char digit, nz = 0;
523		628
524	need (enc, 6);	629	need (enc, 6);
525		630
526	*enc->cur = '-'; enc->cur += i < 0 ? 1 : 0;	631	*enc->cur = '-'; enc->cur += i < 0 ? 1 : 0;
527	u = i < 0 ? -i : i;	632	u = i < 0 ? -i : i;
528		633
529	// convert to 4.28 fixed-point representation	634	// convert to 4.28 fixed-point representation
530	u = u * ((0xfffffff + 10000) / 10000); // 10**5, 5 fractional digits	635	u = u * ((0xfffffff + 10000) / 10000); // 10**5, 5 fractional digits
531		636
532	char digit, nz = 0;	637	// now output digit by digit, each time masking out the integer part
533		638	// and multiplying by 5 while moving the decimal point one to the right,
		639	// resulting in a net multiplication by 10.
		640	// we always write the digit to memory but conditionally increment
		641	// the pointer, to ease the usage of conditional move instructions.
534	digit = u >> 28; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0xfffffff) 5;	642	digit = u >> 28; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0xfffffff) 5;
535	digit = u >> 27; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x7ffffff) 5;	643	digit = u >> 27; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x7ffffff) 5;
536	digit = u >> 26; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x3ffffff) 5;	644	digit = u >> 26; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x3ffffff) 5;
537	digit = u >> 25; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x1ffffff) 5;	645	digit = u >> 25; enc->cur = digit + '0'; enc->cur += (nz = nz \|\| digit); u = (u & 0x1ffffff) 5;
538	digit = u >> 24; *enc->cur = digit + '0'; enc->cur += 1;	646	digit = u >> 24; *enc->cur = digit + '0'; enc->cur += 1; // correctly generate '0'
539	}	647	}
540	}	648	}
541	else if (SvROK (sv))	649	else if (SvROK (sv))
542	encode_rv (enc, SvRV (sv));	650	encode_rv (enc, SvRV (sv));
543	else if (!SvOK (sv))	651	else if (!SvOK (sv))
…		…
546	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",	654	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",
547	SvPV_nolen (sv), SvFLAGS (sv));	655	SvPV_nolen (sv), SvFLAGS (sv));
548	}	656	}
549		657
550	static SV *	658	static SV *
551	encode_json (SV *scalar, U32 flags)	659	encode_json (SV scalar, JSON json)
552	{	660	{
553	enc_t enc;	661	enc_t enc;
554		662
555	if (!(flags & F_ALLOW_NONREF) && !SvROK (scalar))	663	if (!(json->flags & F_ALLOW_NONREF) && !SvROK (scalar))
556	croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");	664	croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");
557		665
558	enc.flags = flags;	666	enc.json = *json;
559	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	667	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
560	enc.cur = SvPVX (enc.sv);	668	enc.cur = SvPVX (enc.sv);
561	enc.end = SvEND (enc.sv);	669	enc.end = SvEND (enc.sv);
562	enc.indent = 0;	670	enc.indent = 0;
563	enc.maxdepth = DEC_DEPTH (flags);	671	enc.maxdepth = DEC_DEPTH (enc.json.flags);
564		672
565	SvPOK_only (enc.sv);	673	SvPOK_only (enc.sv);
566	encode_sv (&enc, scalar);	674	encode_sv (&enc, scalar);
567		675
568	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));	676	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));
569	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings	677	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings
570		678
571	if (!(flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))	679	if (!(enc.json.flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))
572	SvUTF8_on (enc.sv);	680	SvUTF8_on (enc.sv);
573		681
574	if (enc.flags & F_SHRINK)	682	if (enc.json.flags & F_SHRINK)
575	shrink (enc.sv);	683	shrink (enc.sv);
576		684
577	return enc.sv;	685	return enc.sv;
578	}	686	}
579		687
…		…
584	typedef struct	692	typedef struct
585	{	693	{
586	char *cur; // current parser pointer	694	char *cur; // current parser pointer
587	char *end; // end of input string	695	char *end; // end of input string
588	const char *err; // parse error, if != 0	696	const char *err; // parse error, if != 0
589	U32 flags; // F_*	697	JSON json;
590	U32 depth; // recursion depth	698	U32 depth; // recursion depth
591	U32 maxdepth; // recursion depth limit	699	U32 maxdepth; // recursion depth limit
592	} dec_t;	700	} dec_t;
593		701
594	inline void	702	inline void
…		…
625	decode_4hex (dec_t *dec)	733	decode_4hex (dec_t *dec)
626	{	734	{
627	signed char d1, d2, d3, d4;	735	signed char d1, d2, d3, d4;
628	unsigned char cur = (unsigned char )dec->cur;	736	unsigned char cur = (unsigned char )dec->cur;
629		737
630	d1 = decode_hexdigit [cur [0]]; if (expect_false (d1 < 0)) ERR ("four hexadecimal digits expected");	738	d1 = decode_hexdigit [cur [0]]; if (expect_false (d1 < 0)) ERR ("exactly four hexadecimal digits expected");
631	d2 = decode_hexdigit [cur [1]]; if (expect_false (d2 < 0)) ERR ("four hexadecimal digits expected");	739	d2 = decode_hexdigit [cur [1]]; if (expect_false (d2 < 0)) ERR ("exactly four hexadecimal digits expected");
632	d3 = decode_hexdigit [cur [2]]; if (expect_false (d3 < 0)) ERR ("four hexadecimal digits expected");	740	d3 = decode_hexdigit [cur [2]]; if (expect_false (d3 < 0)) ERR ("exactly four hexadecimal digits expected");
633	d4 = decode_hexdigit [cur [3]]; if (expect_false (d4 < 0)) ERR ("four hexadecimal digits expected");	741	d4 = decode_hexdigit [cur [3]]; if (expect_false (d4 < 0)) ERR ("exactly four hexadecimal digits expected");
634		742
635	dec->cur += 4;	743	dec->cur += 4;
636		744
637	return ((UV)d1) << 12	745	return ((UV)d1) << 12
638	\| ((UV)d2) << 8	746	\| ((UV)d2) << 8
…		…
857	is_nv = 1;	965	is_nv = 1;
858	}	966	}
859		967
860	if (!is_nv)	968	if (!is_nv)
861	{	969	{
		970	int len = dec->cur - start;
		971
862	// special case the rather common 1..4-digit-int case, assumes 32 bit ints or so	972	// special case the rather common 1..4-digit-int case, assumes 32 bit ints or so
863	if (*start == '-')	973	if (*start == '-')
864	switch (dec->cur - start)	974	switch (len)
865	{	975	{
866	case 2: return newSViv (-( start [1] - '0' ));	976	case 2: return newSViv (-( start [1] - '0' * 1));
867	case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11));	977	case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11));
868	case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111));	978	case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111));
869	case 5: return newSViv (-(start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111));	979	case 5: return newSViv (-(start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111));
870	}	980	}
871	else	981	else
872	switch (dec->cur - start)	982	switch (len)
873	{	983	{
874	case 1: return newSViv ( start [0] - '0' );	984	case 1: return newSViv ( start [0] - '0' * 1);
875	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);	985	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);
876	case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111);	986	case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111);
877	case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111);	987	case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111);
878	}	988	}
879		989
880	{	990	{
881	UV uv;	991	UV uv;
882	int numtype = grok_number (start, dec->cur - start, &uv);	992	int numtype = grok_number (start, len, &uv);
883	if (numtype & IS_NUMBER_IN_UV)	993	if (numtype & IS_NUMBER_IN_UV)
884	if (numtype & IS_NUMBER_NEG)	994	if (numtype & IS_NUMBER_NEG)
885	{	995	{
886	if (uv < (UV)IV_MIN)	996	if (uv < (UV)IV_MIN)
887	return newSViv (-(IV)uv);	997	return newSViv (-(IV)uv);
888	}	998	}
889	else	999	else
890	return newSVuv (uv);	1000	return newSVuv (uv);
891	}	1001	}
892	}
893		1002
		1003	len -= *start == '-' ? 1 : 0;
		1004
		1005	// does not fit into IV or UV, try NV
		1006	if ((sizeof (NV) == sizeof (double) && DBL_DIG >= len)
		1007	#if defined (LDBL_DIG)
		1008	\|\| (sizeof (NV) == sizeof (long double) && LDBL_DIG >= len)
		1009	#endif
		1010	)
		1011	// fits into NV without loss of precision
		1012	return newSVnv (Atof (start));
		1013
		1014	// everything else fails, convert it to a string
		1015	return newSVpvn (start, dec->cur - start);
		1016	}
		1017
		1018	// loss of precision here
894	return newSVnv (Atof (start));	1019	return newSVnv (Atof (start));
895		1020
896	fail:	1021	fail:
897	return 0;	1022	return 0;
898	}	1023	}
…		…
942	}	1067	}
943		1068
944	static SV *	1069	static SV *
945	decode_hv (dec_t *dec)	1070	decode_hv (dec_t *dec)
946	{	1071	{
		1072	SV *sv;
947	HV *hv = newHV ();	1073	HV *hv = newHV ();
948		1074
949	DEC_INC_DEPTH;	1075	DEC_INC_DEPTH;
950	decode_ws (dec);	1076	decode_ws (dec);
951		1077
952	if (*dec->cur == '}')	1078	if (*dec->cur == '}')
953	++dec->cur;	1079	++dec->cur;
954	else	1080	else
955	for (;;)	1081	for (;;)
956	{	1082	{
957	SV key, value;
958
959	decode_ws (dec); EXPECT_CH ('"');	1083	decode_ws (dec); EXPECT_CH ('"');
960		1084
961	key = decode_str (dec);	1085	// heuristic: assume that
962	if (!key)	1086	// a) decode_str + hv_store_ent are abysmally slow.
963	goto fail;	1087	// b) most hash keys are short, simple ascii text.
		1088	// => try to "fast-match" such strings to avoid
		1089	// the overhead of decode_str + hv_store_ent.
		1090	{
		1091	SV *value;
		1092	char *p = dec->cur;
		1093	char *e = p + 24; // only try up to 24 bytes
964		1094
965	decode_ws (dec); EXPECT_CH (':');	1095	for (;;)
966
967	value = decode_sv (dec);
968	if (!value)
969	{	1096	{
		1097	// the >= 0x80 is true on most architectures
		1098	if (p == e \|\| p < 0x20 \|\| p >= 0x80 \|\| *p == '\\')
		1099	{
		1100	// slow path, back up and use decode_str
		1101	SV *key = decode_str (dec);
		1102	if (!key)
		1103	goto fail;
		1104
		1105	decode_ws (dec); EXPECT_CH (':');
		1106
		1107	value = decode_sv (dec);
		1108	if (!value)
		1109	{
		1110	SvREFCNT_dec (key);
		1111	goto fail;
		1112	}
		1113
		1114	hv_store_ent (hv, key, value, 0);
970	SvREFCNT_dec (key);	1115	SvREFCNT_dec (key);
		1116
		1117	break;
		1118	}
		1119	else if (*p == '"')
		1120	{
		1121	// fast path, got a simple key
		1122	char *key = dec->cur;
		1123	int len = p - key;
		1124	dec->cur = p + 1;
		1125
		1126	decode_ws (dec); EXPECT_CH (':');
		1127
		1128	value = decode_sv (dec);
		1129	if (!value)
971	goto fail;	1130	goto fail;
		1131
		1132	hv_store (hv, key, len, value, 0);
		1133
		1134	break;
		1135	}
		1136
		1137	++p;
972	}	1138	}
973		1139	}
974	hv_store_ent (hv, key, value, 0);
975	SvREFCNT_dec (key);
976		1140
977	decode_ws (dec);	1141	decode_ws (dec);
978		1142
979	if (*dec->cur == '}')	1143	if (*dec->cur == '}')
980	{	1144	{
…		…
987		1151
988	++dec->cur;	1152	++dec->cur;
989	}	1153	}
990		1154
991	DEC_DEC_DEPTH;	1155	DEC_DEC_DEPTH;
992	return newRV_noinc ((SV *)hv);	1156	sv = newRV_noinc ((SV *)hv);
		1157
		1158	// check filter callbacks
		1159	if (dec->json.flags & F_HOOK)
		1160	{
		1161	if (dec->json.cb_sk_object && HvKEYS (hv) == 1)
		1162	{
		1163	HE cb, he;
		1164
		1165	hv_iterinit (hv);
		1166	he = hv_iternext (hv);
		1167	hv_iterinit (hv);
		1168
		1169	// the next line creates a mortal sv each time its called.
		1170	// might want to optimise this for common cases.
		1171	cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0);
		1172
		1173	if (cb)
		1174	{
		1175	dSP;
		1176	int count;
		1177
		1178	ENTER; SAVETMPS; PUSHMARK (SP);
		1179	XPUSHs (HeVAL (he));
		1180
		1181	PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN;
		1182
		1183	if (count == 1)
		1184	{
		1185	sv = newSVsv (POPs);
		1186	FREETMPS; LEAVE;
		1187	return sv;
		1188	}
		1189
		1190	FREETMPS; LEAVE;
		1191	}
		1192	}
		1193
		1194	if (dec->json.cb_object)
		1195	{
		1196	dSP;
		1197	int count;
		1198
		1199	ENTER; SAVETMPS; PUSHMARK (SP);
		1200	XPUSHs (sv_2mortal (sv));
		1201
		1202	PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN;
		1203
		1204	if (count == 1)
		1205	{
		1206	sv = newSVsv (POPs);
		1207	FREETMPS; LEAVE;
		1208	return sv;
		1209	}
		1210
		1211	SvREFCNT_inc (sv);
		1212	FREETMPS; LEAVE;
		1213	}
		1214	}
		1215
		1216	return sv;
993		1217
994	fail:	1218	fail:
995	SvREFCNT_dec (hv);	1219	SvREFCNT_dec (hv);
996	DEC_DEC_DEPTH;	1220	DEC_DEC_DEPTH;
997	return 0;	1221	return 0;
…		…
999		1223
1000	static SV *	1224	static SV *
1001	decode_sv (dec_t *dec)	1225	decode_sv (dec_t *dec)
1002	{	1226	{
1003	decode_ws (dec);	1227	decode_ws (dec);
		1228
		1229	// the beauty of JSON: you need exactly one character lookahead
		1230	// to parse anything.
1004	switch (*dec->cur)	1231	switch (*dec->cur)
1005	{	1232	{
1006	case '"': ++dec->cur; return decode_str (dec);	1233	case '"': ++dec->cur; return decode_str (dec);
1007	case '[': ++dec->cur; return decode_av (dec);	1234	case '[': ++dec->cur; return decode_av (dec);
1008	case '{': ++dec->cur; return decode_hv (dec);	1235	case '{': ++dec->cur; return decode_hv (dec);
…		…
1014		1241
1015	case 't':	1242	case 't':
1016	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))	1243	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))
1017	{	1244	{
1018	dec->cur += 4;	1245	dec->cur += 4;
1019	return newSViv (1);	1246	#if JSON_SLOW
		1247	json_true = get_sv ("JSON::XS::true", 1); SvREADONLY_on (json_true);
		1248	#endif
		1249	return SvREFCNT_inc (json_true);
1020	}	1250	}
1021	else	1251	else
1022	ERR ("'true' expected");	1252	ERR ("'true' expected");
1023		1253
1024	break;	1254	break;
1025		1255
1026	case 'f':	1256	case 'f':
1027	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))	1257	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))
1028	{	1258	{
1029	dec->cur += 5;	1259	dec->cur += 5;
1030	return newSViv (0);	1260	#if JSON_SLOW
		1261	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);
		1262	#endif
		1263	return SvREFCNT_inc (json_false);
1031	}	1264	}
1032	else	1265	else
1033	ERR ("'false' expected");	1266	ERR ("'false' expected");
1034		1267
1035	break;	1268	break;
…		…
1053	fail:	1286	fail:
1054	return 0;	1287	return 0;
1055	}	1288	}
1056		1289
1057	static SV *	1290	static SV *
1058	decode_json (SV string, U32 flags, UV offset_return)	1291	decode_json (SV string, JSON json, UV *offset_return)
1059	{	1292	{
1060	dec_t dec;	1293	dec_t dec;
1061	UV offset;	1294	UV offset;
1062	SV *sv;	1295	SV *sv;
1063		1296
1064	SvGETMAGIC (string);	1297	SvGETMAGIC (string);
1065	SvUPGRADE (string, SVt_PV);	1298	SvUPGRADE (string, SVt_PV);
1066		1299
		1300	if (json->flags & F_MAXSIZE && SvCUR (string) > DEC_SIZE (json->flags))
		1301	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",
		1302	(unsigned long)SvCUR (string), (unsigned long)DEC_SIZE (json->flags));
		1303
1067	if (flags & F_UTF8)	1304	if (json->flags & F_UTF8)
1068	sv_utf8_downgrade (string, 0);	1305	sv_utf8_downgrade (string, 0);
1069	else	1306	else
1070	sv_utf8_upgrade (string);	1307	sv_utf8_upgrade (string);
1071		1308
1072	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP	1309	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP
1073		1310
1074	dec.flags = flags;	1311	dec.json = *json;
1075	dec.cur = SvPVX (string);	1312	dec.cur = SvPVX (string);
1076	dec.end = SvEND (string);	1313	dec.end = SvEND (string);
1077	dec.err = 0;	1314	dec.err = 0;
1078	dec.depth = 0;	1315	dec.depth = 0;
1079	dec.maxdepth = DEC_DEPTH (dec.flags);	1316	dec.maxdepth = DEC_DEPTH (dec.json.flags);
		1317
		1318	if (dec.json.cb_object \|\| dec.json.cb_sk_object)
		1319	dec.json.flags \|= F_HOOK;
1080		1320
1081	*dec.end = 0; // this should basically be a nop, too, but make sure it's there	1321	*dec.end = 0; // this should basically be a nop, too, but make sure it's there
1082	sv = decode_sv (&dec);	1322	sv = decode_sv (&dec);
1083		1323
1084	if (!(offset_return \|\| !sv))	1324	if (!(offset_return \|\| !sv))
…		…
1094	}	1334	}
1095	}	1335	}
1096		1336
1097	if (offset_return \|\| !sv)	1337	if (offset_return \|\| !sv)
1098	{	1338	{
1099	offset = dec.flags & F_UTF8	1339	offset = dec.json.flags & F_UTF8
1100	? dec.cur - SvPVX (string)	1340	? dec.cur - SvPVX (string)
1101	: utf8_distance (dec.cur, SvPVX (string));	1341	: utf8_distance (dec.cur, SvPVX (string));
1102		1342
1103	if (offset_return)	1343	if (offset_return)
1104	*offset_return = offset;	1344	*offset_return = offset;
…		…
1123	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");	1363	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");
1124	}	1364	}
1125		1365
1126	sv = sv_2mortal (sv);	1366	sv = sv_2mortal (sv);
1127		1367
1128	if (!(dec.flags & F_ALLOW_NONREF) && !SvROK (sv))	1368	if (!(dec.json.flags & F_ALLOW_NONREF) && !SvROK (sv))
1129	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");	1369	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");
1130		1370
1131	return sv;	1371	return sv;
1132	}	1372	}
1133		1373
…		…
1137	MODULE = JSON::XS PACKAGE = JSON::XS	1377	MODULE = JSON::XS PACKAGE = JSON::XS
1138		1378
1139	BOOT:	1379	BOOT:
1140	{	1380	{
1141	int i;	1381	int i;
1142
1143	memset (decode_hexdigit, 0xff, 256);
1144		1382
1145	for (i = 0; i < 256; ++i)	1383	for (i = 0; i < 256; ++i)
1146	decode_hexdigit [i] =	1384	decode_hexdigit [i] =
1147	i >= '0' && i <= '9' ? i - '0'	1385	i >= '0' && i <= '9' ? i - '0'
1148	: i >= 'a' && i <= 'f' ? i - 'a' + 10	1386	: i >= 'a' && i <= 'f' ? i - 'a' + 10
1149	: i >= 'A' && i <= 'F' ? i - 'A' + 10	1387	: i >= 'A' && i <= 'F' ? i - 'A' + 10
1150	: -1;	1388	: -1;
1151		1389
1152	json_stash = gv_stashpv ("JSON::XS", 1);	1390	json_stash = gv_stashpv ("JSON::XS" , 1);
		1391	json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1);
		1392
		1393	json_true = get_sv ("JSON::XS::true" , 1); SvREADONLY_on (json_true );
		1394	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);
1153	}	1395	}
1154		1396
1155	PROTOTYPES: DISABLE	1397	PROTOTYPES: DISABLE
1156		1398
1157	SV new (char dummy)	1399	void CLONE (...)
1158	CODE:	1400	CODE:
1159	RETVAL = sv_bless (newRV_noinc (newSVuv (F_DEFAULT)), json_stash);	1401	json_stash = 0;
1160	OUTPUT:	1402	json_boolean_stash = 0;
1161	RETVAL
1162		1403
		1404	void new (char *klass)
		1405	PPCODE:
		1406	{
		1407	SV *pv = NEWSV (0, sizeof (JSON));
		1408	SvPOK_only (pv);
		1409	Zero (SvPVX (pv), 1, JSON);
		1410	((JSON *)SvPVX (pv))->flags = F_DEFAULT;
		1411	XPUSHs (sv_2mortal (sv_bless (newRV_noinc (pv), JSON_STASH)));
		1412	}
		1413
1163	SV ascii (SV self, int enable = 1)	1414	void ascii (JSON *self, int enable = 1)
1164	ALIAS:	1415	ALIAS:
1165	ascii = F_ASCII	1416	ascii = F_ASCII
1166	latin1 = F_LATIN1	1417	latin1 = F_LATIN1
1167	utf8 = F_UTF8	1418	utf8 = F_UTF8
1168	indent = F_INDENT	1419	indent = F_INDENT
1169	canonical = F_CANONICAL	1420	canonical = F_CANONICAL
1170	space_before = F_SPACE_BEFORE	1421	space_before = F_SPACE_BEFORE
1171	space_after = F_SPACE_AFTER	1422	space_after = F_SPACE_AFTER
1172	pretty = F_PRETTY	1423	pretty = F_PRETTY
1173	allow_nonref = F_ALLOW_NONREF	1424	allow_nonref = F_ALLOW_NONREF
1174	shrink = F_SHRINK	1425	shrink = F_SHRINK
		1426	allow_blessed = F_ALLOW_BLESSED
		1427	convert_blessed = F_CONV_BLESSED
1175	CODE:	1428	PPCODE:
1176	{	1429	{
1177	UV *uv = SvJSON (self);
1178	if (enable)	1430	if (enable)
1179	*uv \|= ix;	1431	self->flags \|= ix;
1180	else	1432	else
1181	*uv &= ~ix;	1433	self->flags &= ~ix;
1182		1434
1183	RETVAL = newSVsv (self);	1435	XPUSHs (ST (0));
1184	}	1436	}
1185	OUTPUT:
1186	RETVAL
1187		1437
1188	SV max_depth (SV self, UV max_depth = 0x80000000UL)	1438	void max_depth (JSON *self, UV max_depth = 0x80000000UL)
1189	CODE:	1439	PPCODE:
1190	{	1440	{
1191	UV *uv = SvJSON (self);
1192	UV log2 = 0;	1441	UV log2 = 0;
1193		1442
1194	if (max_depth > 0x80000000UL) max_depth = 0x80000000UL;	1443	if (max_depth > 0x80000000UL) max_depth = 0x80000000UL;
1195		1444
1196	while ((1UL << log2) < max_depth)	1445	while ((1UL << log2) < max_depth)
1197	++log2;	1446	++log2;
1198		1447
1199	uv = uv & ~F_MAXDEPTH \| (log2 << S_MAXDEPTH);	1448	self->flags = self->flags & ~F_MAXDEPTH \| (log2 << S_MAXDEPTH);
1200		1449
1201	RETVAL = newSVsv (self);	1450	XPUSHs (ST (0));
1202	}	1451	}
1203	OUTPUT:
1204	RETVAL
1205		1452
1206	void encode (SV self, SV scalar)	1453	void max_size (JSON *self, UV max_size = 0)
1207	PPCODE:	1454	PPCODE:
1208	XPUSHs (encode_json (scalar, *SvJSON (self)));	1455	{
		1456	UV log2 = 0;
1209		1457
1210	void decode (SV self, SV jsonstr)	1458	if (max_size > 0x80000000UL) max_size = 0x80000000UL;
		1459	if (max_size == 1) max_size = 2;
		1460
		1461	while ((1UL << log2) < max_size)
		1462	++log2;
		1463
		1464	self->flags = self->flags & ~F_MAXSIZE \| (log2 << S_MAXSIZE);
		1465
		1466	XPUSHs (ST (0));
		1467	}
		1468
		1469	void filter_json_object (JSON self, SV cb = &PL_sv_undef)
1211	PPCODE:	1470	PPCODE:
		1471	{
		1472	SvREFCNT_dec (self->cb_object);
		1473	self->cb_object = SvOK (cb) ? newSVsv (cb) : 0;
		1474
		1475	XPUSHs (ST (0));
		1476	}
		1477
		1478	void filter_json_single_key_object (JSON self, SV key, SV *cb = &PL_sv_undef)
		1479	PPCODE:
		1480	{
		1481	if (!self->cb_sk_object)
		1482	self->cb_sk_object = newHV ();
		1483
		1484	if (SvOK (cb))
		1485	hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0);
		1486	else
		1487	{
		1488	hv_delete_ent (self->cb_sk_object, key, G_DISCARD, 0);
		1489
		1490	if (!HvKEYS (self->cb_sk_object))
		1491	{
		1492	SvREFCNT_dec (self->cb_sk_object);
		1493	self->cb_sk_object = 0;
		1494	}
		1495	}
		1496
		1497	XPUSHs (ST (0));
		1498	}
		1499
		1500	void encode (JSON self, SV scalar)
		1501	PPCODE:
		1502	XPUSHs (encode_json (scalar, self));
		1503
		1504	void decode (JSON self, SV jsonstr)
		1505	PPCODE:
1212	XPUSHs (decode_json (jsonstr, *SvJSON (self), 0));	1506	XPUSHs (decode_json (jsonstr, self, 0));
1213		1507
1214	void decode_prefix (SV self, SV jsonstr)	1508	void decode_prefix (JSON self, SV jsonstr)
1215	PPCODE:	1509	PPCODE:
1216	{	1510	{
1217	UV offset;	1511	UV offset;
1218	EXTEND (SP, 2);	1512	EXTEND (SP, 2);
1219	PUSHs (decode_json (jsonstr, *SvJSON (self), &offset));	1513	PUSHs (decode_json (jsonstr, self, &offset));
1220	PUSHs (sv_2mortal (newSVuv (offset)));	1514	PUSHs (sv_2mortal (newSVuv (offset)));
1221	}	1515	}
1222		1516
		1517	void DESTROY (JSON *self)
		1518	CODE:
		1519	SvREFCNT_dec (self->cb_sk_object);
		1520	SvREFCNT_dec (self->cb_object);
		1521
1223	PROTOTYPES: ENABLE	1522	PROTOTYPES: ENABLE
1224		1523
1225	void to_json (SV *scalar)	1524	void to_json (SV *scalar)
1226	ALIAS:
1227	objToJson = 0
1228	PPCODE:	1525	PPCODE:
		1526	{
		1527	JSON json = { F_DEFAULT \| F_UTF8 };
1229	XPUSHs (encode_json (scalar, F_DEFAULT \| F_UTF8));	1528	XPUSHs (encode_json (scalar, &json));
		1529	}
1230		1530
1231	void from_json (SV *jsonstr)	1531	void from_json (SV *jsonstr)
1232	ALIAS:
1233	jsonToObj = 0
1234	PPCODE:	1532	PPCODE:
		1533	{
		1534	JSON json = { F_DEFAULT \| F_UTF8 };
1235	XPUSHs (decode_json (jsonstr, F_DEFAULT \| F_UTF8, 0));	1535	XPUSHs (decode_json (jsonstr, &json, 0));
		1536	}
1236		1537

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Comparing JSON-XS/XS.xs (file contents): Revision 1.38 by root, Mon Jun 11 03:18:07 2007 UTC vs. Revision 1.61 by root, Sun Aug 26 21:56:47 2007 UTC

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Comparing JSON-XS/XS.xs (file contents):
Revision 1.38 by root, Mon Jun 11 03:18:07 2007 UTC vs.
Revision 1.61 by root, Sun Aug 26 21:56:47 2007 UTC