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

Comparing JSON-XS/XS.xs (file contents):
Revision 1.46 by root, Mon Jun 25 22:11:39 2007 UTC vs.
Revision 1.66 by root, Sun Nov 25 19:02:42 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
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
29	#define F_ALLOW_BLESSED 0x00000400UL	30	#define F_ALLOW_BLESSED 0x00000400UL
30	#define F_CONV_BLESSED 0x00000800UL // NYI	31	#define F_CONV_BLESSED 0x00000800UL
		32	#define F_RELAXED 0x00001000UL
		33
31	#define F_MAXDEPTH 0xf8000000UL	34	#define F_MAXDEPTH 0xf8000000UL
32	#define S_MAXDEPTH 27	35	#define S_MAXDEPTH 27
33	#define F_MAXSIZE 0x01f00000UL	36	#define F_MAXSIZE 0x01f00000UL
34	#define S_MAXSIZE 20	37	#define S_MAXSIZE 20
		38	#define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing
35		39
36	#define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH))	40	#define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH))
37	#define DEC_SIZE(flags) (1UL << ((flags & F_MAXSIZE ) >> S_MAXSIZE ))	41	#define DEC_SIZE(flags) (1UL << ((flags & F_MAXSIZE ) >> S_MAXSIZE ))
38		42
39	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER	43	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER
…		…
56	#endif	60	#endif
57		61
58	#define expect_false(expr) expect ((expr) != 0, 0)	62	#define expect_false(expr) expect ((expr) != 0, 0)
59	#define expect_true(expr) expect ((expr) != 0, 1)	63	#define expect_true(expr) expect ((expr) != 0, 1)
60		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
61	static HV json_stash, json_boolean_stash; // JSON::XS::	73	static HV json_stash, json_boolean_stash; // JSON::XS::
62	static SV json_true, json_false;	74	static SV json_true, json_false;
63		75
		76	typedef struct {
		77	U32 flags;
		78	SV *cb_object;
		79	HV *cb_sk_object;
		80	} JSON;
		81
64	/////////////////////////////////////////////////////////////////////////////	82	/////////////////////////////////////////////////////////////////////////////
65	// utility functions	83	// utility functions
66		84
67	static UV *	85	inline void
68	SvJSON (SV *sv)
69	{
70	if (!(SvROK (sv) && SvOBJECT (SvRV (sv)) && SvSTASH (SvRV (sv)) == json_stash))
71	croak ("object is not of type JSON::XS");
72
73	return &SvUVX (SvRV (sv));
74	}
75
76	static void
77	shrink (SV *sv)	86	shrink (SV *sv)
78	{	87	{
79	sv_utf8_downgrade (sv, 1);	88	sv_utf8_downgrade (sv, 1);
80	if (SvLEN (sv) > SvCUR (sv) + 1)	89	if (SvLEN (sv) > SvCUR (sv) + 1)
81	{	90	{
…		…
116	typedef struct	125	typedef struct
117	{	126	{
118	char *cur; // SvPVX (sv) + current output position	127	char *cur; // SvPVX (sv) + current output position
119	char *end; // SvEND (sv)	128	char *end; // SvEND (sv)
120	SV *sv; // result scalar	129	SV *sv; // result scalar
121	U32 flags; // F_*	130	JSON json;
122	U32 indent; // indentation level	131	U32 indent; // indentation level
123	U32 maxdepth; // max. indentation/recursion level	132	U32 maxdepth; // max. indentation/recursion level
124	} enc_t;	133	} enc_t;
125		134
126	inline void	135	inline void
…		…
200	}	209	}
201		210
202	if (uch > 0x10FFFFUL)	211	if (uch > 0x10FFFFUL)
203	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);
204		213
205	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))
206	{	215	{
207	if (uch > 0xFFFFUL)	216	if (uch > 0xFFFFUL)
208	{	217	{
209	need (enc, len += 11);	218	need (enc, len += 11);
210	sprintf (enc->cur, "\\u%04x\\u%04x",	219	sprintf (enc->cur, "\\u%04x\\u%04x",
…		…
224	*enc->cur++ = hexdigit [(uch >> 0) & 15];	233	*enc->cur++ = hexdigit [(uch >> 0) & 15];
225	}	234	}
226		235
227	str += clen;	236	str += clen;
228	}	237	}
229	else if (enc->flags & F_LATIN1)	238	else if (enc->json.flags & F_LATIN1)
230	{	239	{
231	*enc->cur++ = uch;	240	*enc->cur++ = uch;
232	str += clen;	241	str += clen;
233	}	242	}
234	else if (is_utf8)	243	else if (is_utf8)
…		…
255	}	264	}
256		265
257	inline void	266	inline void
258	encode_indent (enc_t *enc)	267	encode_indent (enc_t *enc)
259	{	268	{
260	if (enc->flags & F_INDENT)	269	if (enc->json.flags & F_INDENT)
261	{	270	{
262	int spaces = enc->indent * INDENT_STEP;	271	int spaces = enc->indent * INDENT_STEP;
263		272
264	need (enc, spaces);	273	need (enc, spaces);
265	memset (enc->cur, ' ', spaces);	274	memset (enc->cur, ' ', spaces);
…		…
275	}	284	}
276		285
277	inline void	286	inline void
278	encode_nl (enc_t *enc)	287	encode_nl (enc_t *enc)
279	{	288	{
280	if (enc->flags & F_INDENT)	289	if (enc->json.flags & F_INDENT)
281	{	290	{
282	need (enc, 1);	291	need (enc, 1);
283	encode_ch (enc, '\n');	292	encode_ch (enc, '\n');
284	}	293	}
285	}	294	}
…		…
287	inline void	296	inline void
288	encode_comma (enc_t *enc)	297	encode_comma (enc_t *enc)
289	{	298	{
290	encode_ch (enc, ',');	299	encode_ch (enc, ',');
291		300
292	if (enc->flags & F_INDENT)	301	if (enc->json.flags & F_INDENT)
293	encode_nl (enc);	302	encode_nl (enc);
294	else if (enc->flags & F_SPACE_AFTER)	303	else if (enc->json.flags & F_SPACE_AFTER)
295	encode_space (enc);	304	encode_space (enc);
296	}	305	}
297		306
298	static void encode_sv (enc_t enc, SV sv);	307	static void encode_sv (enc_t enc, SV sv);
299		308
…		…
303	int i, len = av_len (av);	312	int i, len = av_len (av);
304		313
305	if (enc->indent >= enc->maxdepth)	314	if (enc->indent >= enc->maxdepth)
306	croak ("data structure too deep (hit recursion limit)");	315	croak ("data structure too deep (hit recursion limit)");
307		316
308	encode_ch (enc, '['); encode_nl (enc);	317	encode_ch (enc, '[');
309	++enc->indent;	318
		319	if (len >= 0)
		320	{
		321	encode_nl (enc); ++enc->indent;
310		322
311	for (i = 0; i <= len; ++i)	323	for (i = 0; i <= len; ++i)
312	{	324	{
		325	SV **svp = av_fetch (av, i, 0);
		326
313	encode_indent (enc);	327	encode_indent (enc);
314	encode_sv (enc, *av_fetch (av, i, 0));
315		328
		329	if (svp)
		330	encode_sv (enc, *svp);
		331	else
		332	encode_str (enc, "null", 4, 0);
		333
316	if (i < len)	334	if (i < len)
317	encode_comma (enc);	335	encode_comma (enc);
318	}	336	}
319		337
		338	encode_nl (enc); --enc->indent; encode_indent (enc);
		339	}
		340
320	encode_nl (enc);	341	encode_ch (enc, ']');
321
322	--enc->indent;
323	encode_indent (enc); encode_ch (enc, ']');
324	}	342	}
325		343
326	static void	344	static void
327	encode_he (enc_t enc, HE he)	345	encode_hk (enc_t enc, HE he)
328	{	346	{
329	encode_ch (enc, '"');	347	encode_ch (enc, '"');
330		348
331	if (HeKLEN (he) == HEf_SVKEY)	349	if (HeKLEN (he) == HEf_SVKEY)
332	{	350	{
…		…
342	else	360	else
343	encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he));	361	encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he));
344		362
345	encode_ch (enc, '"');	363	encode_ch (enc, '"');
346		364
347	if (enc->flags & F_SPACE_BEFORE) encode_space (enc);	365	if (enc->json.flags & F_SPACE_BEFORE) encode_space (enc);
348	encode_ch (enc, ':');	366	encode_ch (enc, ':');
349	if (enc->flags & F_SPACE_AFTER ) encode_space (enc);	367	if (enc->json.flags & F_SPACE_AFTER ) encode_space (enc);
350	encode_sv (enc, HeVAL (he));
351	}	368	}
352		369
353	// compare hash entries, used when all keys are bytestrings	370	// compare hash entries, used when all keys are bytestrings
354	static int	371	static int
355	he_cmp_fast (const void a_, const void b_)	372	he_cmp_fast (const void a_, const void b_)
…		…
360	HE b = (HE **)b_;	377	HE b = (HE **)b_;
361		378
362	STRLEN la = HeKLEN (a);	379	STRLEN la = HeKLEN (a);
363	STRLEN lb = HeKLEN (b);	380	STRLEN lb = HeKLEN (b);
364		381
365	if (!(cmp = memcmp (HeKEY (a), HeKEY (b), la < lb ? la : lb)))	382	if (!(cmp = memcmp (HeKEY (b), HeKEY (a), lb < la ? lb : la)))
366	cmp = la - lb;	383	cmp = lb - la;
367		384
368	return cmp;	385	return cmp;
369	}	386	}
370		387
371	// 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
372	static int	389	static int
373	he_cmp_slow (const void a, const void b)	390	he_cmp_slow (const void a, const void b)
374	{	391	{
375	return sv_cmp (HeSVKEY_force ((HE )a), HeSVKEY_force ((HE **)b));	392	return sv_cmp (HeSVKEY_force ((HE )b), HeSVKEY_force ((HE **)a));
376	}	393	}
377		394
378	static void	395	static void
379	encode_hv (enc_t enc, HV hv)	396	encode_hv (enc_t enc, HV hv)
380	{	397	{
		398	HE *he;
381	int count, i;	399	int count;
382		400
383	if (enc->indent >= enc->maxdepth)	401	if (enc->indent >= enc->maxdepth)
384	croak ("data structure too deep (hit recursion limit)");	402	croak ("data structure too deep (hit recursion limit)");
385		403
386	encode_ch (enc, '{'); encode_nl (enc); ++enc->indent;	404	encode_ch (enc, '{');
387		405
388	if ((count = hv_iterinit (hv)))
389	{
390	// for canonical output we have to sort by keys first	406	// for canonical output we have to sort by keys first
391	// actually, this is mostly due to the stupid so-called	407	// actually, this is mostly due to the stupid so-called
392	// security workaround added somewhere in 5.8.x.	408	// security workaround added somewhere in 5.8.x.
393	// that randomises hash orderings	409	// that randomises hash orderings
394	if (enc->flags & F_CANONICAL)	410	if (enc->json.flags & F_CANONICAL)
		411	{
		412	int count = hv_iterinit (hv);
		413
		414	if (SvMAGICAL (hv))
395	{	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	{
396	int fast = 1;	430	int i, fast = 1;
397	HE *he;
398	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	431	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)
399	HE *hes = _alloca (count sizeof (HE));	432	HE *hes = _alloca (count sizeof (HE));
400	#else	433	#else
401	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
402	#endif	435	#endif
…		…
429		462
430	FREETMPS;	463	FREETMPS;
431	LEAVE;	464	LEAVE;
432	}	465	}
433		466
434	for (i = 0; i < count; ++i)	467	encode_nl (enc); ++enc->indent;
		468
		469	while (count--)
435	{	470	{
436	encode_indent (enc);	471	encode_indent (enc);
		472	he = hes [count];
437	encode_he (enc, hes [i]);	473	encode_hk (enc, he);
		474	encode_sv (enc, expect_false (SvMAGICAL (hv)) ? hv_iterval (hv, he) : HeVAL (he));
438		475
439	if (i < count - 1)	476	if (count)
440	encode_comma (enc);	477	encode_comma (enc);
441	}	478	}
442		479
443	encode_nl (enc);	480	encode_nl (enc); --enc->indent; encode_indent (enc);
444	}	481	}
		482	}
445	else	483	else
		484	{
		485	if (hv_iterinit (hv) \|\| SvMAGICAL (hv))
		486	if ((he = hv_iternext (hv)))
446	{	487	{
447	HE *he = hv_iternext (hv);	488	encode_nl (enc); ++enc->indent;
448		489
449	for (;;)	490	for (;;)
450	{	491	{
451	encode_indent (enc);	492	encode_indent (enc);
452	encode_he (enc, he);	493	encode_hk (enc, he);
		494	encode_sv (enc, expect_false (SvMAGICAL (hv)) ? hv_iterval (hv, he) : HeVAL (he));
453		495
454	if (!(he = hv_iternext (hv)))	496	if (!(he = hv_iternext (hv)))
455	break;	497	break;
456		498
457	encode_comma (enc);	499	encode_comma (enc);
458	}	500	}
459		501
460	encode_nl (enc);	502	encode_nl (enc); --enc->indent; encode_indent (enc);
461	}	503	}
462	}	504	}
463		505
464	--enc->indent; encode_indent (enc); encode_ch (enc, '}');	506	encode_ch (enc, '}');
465	}	507	}
466		508
467	// encode objects, arrays and special \0=false and \1=true values.	509	// encode objects, arrays and special \0=false and \1=true values.
468	static void	510	static void
469	encode_rv (enc_t enc, SV sv)	511	encode_rv (enc_t enc, SV sv)
…		…
473	SvGETMAGIC (sv);	515	SvGETMAGIC (sv);
474	svt = SvTYPE (sv);	516	svt = SvTYPE (sv);
475		517
476	if (expect_false (SvOBJECT (sv)))	518	if (expect_false (SvOBJECT (sv)))
477	{	519	{
		520	HV *stash = !JSON_SLOW \|\| json_boolean_stash
		521	? json_boolean_stash
		522	: gv_stashpv ("JSON::XS::Boolean", 1);
		523
478	if (SvSTASH (sv) == json_boolean_stash)	524	if (SvSTASH (sv) == stash)
479	{	525	{
480	if (SvIV (sv) == 0)	526	if (SvIV (sv))
		527	encode_str (enc, "true", 4, 0);
		528	else
481	encode_str (enc, "false", 5, 0);	529	encode_str (enc, "false", 5, 0);
482	else
483	encode_str (enc, "true", 4, 0);
484	}	530	}
485	else	531	else
486	{	532	{
487	#if 0	533	#if 0
488	if (0 && sv_derived_from (rv, "JSON::Literal"))	534	if (0 && sv_derived_from (rv, "JSON::Literal"))
489	{	535	{
490	// not yet	536	// not yet
491	}	537	}
492	#endif	538	#endif
493	if (enc->flags & F_CONV_BLESSED)	539	if (enc->json.flags & F_CONV_BLESSED)
494	{	540	{
495	// we re-bless the reference to get overload and other niceties right	541	// we re-bless the reference to get overload and other niceties right
496	GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 1);	542	GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 0);
497		543
498	if (to_json)	544	if (to_json)
499	{	545	{
500	dSP;	546	dSP;
501	ENTER;	547
502	SAVETMPS;
503	PUSHMARK (SP);	548	ENTER; SAVETMPS; PUSHMARK (SP);
504	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv)));	549	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv)));
505		550
506	// calling with G_SCALAR ensures that we always get a 1 reutrn value	551	// calling with G_SCALAR ensures that we always get a 1 return value
507	// check anyways.
508	PUTBACK;	552	PUTBACK;
509	assert (1 == call_sv ((SV *)GvCV (to_json), G_SCALAR));	553	call_sv ((SV *)GvCV (to_json), G_SCALAR);
510	SPAGAIN;	554	SPAGAIN;
511		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
512	encode_sv (enc, POPs);	563	encode_sv (enc, sv);
513		564
514	FREETMPS;	565	FREETMPS; LEAVE;
515	LEAVE;
516	}	566	}
517	else if (enc->flags & F_ALLOW_BLESSED)	567	else if (enc->json.flags & F_ALLOW_BLESSED)
518	encode_str (enc, "null", 4, 0);	568	encode_str (enc, "null", 4, 0);
519	else	569	else
520	croak ("encountered object '%s', but neither allow_blessed enabled nor TO_JSON method available on it",	570	croak ("encountered object '%s', but neither allow_blessed enabled nor TO_JSON method available on it",
521	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	571	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
522	}	572	}
523	else if (enc->flags & F_ALLOW_BLESSED)	573	else if (enc->json.flags & F_ALLOW_BLESSED)
524	encode_str (enc, "null", 4, 0);	574	encode_str (enc, "null", 4, 0);
525	else	575	else
526	croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled",	576	croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled",
527	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	577	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
528	}	578	}
…		…
531	encode_hv (enc, (HV *)sv);	581	encode_hv (enc, (HV *)sv);
532	else if (svt == SVt_PVAV)	582	else if (svt == SVt_PVAV)
533	encode_av (enc, (AV *)sv);	583	encode_av (enc, (AV *)sv);
534	else if (svt < SVt_PVAV)	584	else if (svt < SVt_PVAV)
535	{	585	{
536	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')
537	encode_str (enc, "false", 5, 0);	592	encode_str (enc, "false", 5, 0);
538	else if (SvNIOK (sv) && SvIV (sv) == 1)
539	encode_str (enc, "true", 4, 0);
540	else	593	else
541	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",
542	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	595	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
543	}	596	}
544	else	597	else
…		…
614	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",
615	SvPV_nolen (sv), SvFLAGS (sv));	668	SvPV_nolen (sv), SvFLAGS (sv));
616	}	669	}
617		670
618	static SV *	671	static SV *
619	encode_json (SV *scalar, U32 flags)	672	encode_json (SV scalar, JSON json)
620	{	673	{
621	enc_t enc;	674	enc_t enc;
622		675
623	if (!(flags & F_ALLOW_NONREF) && !SvROK (scalar))	676	if (!(json->flags & F_ALLOW_NONREF) && !SvROK (scalar))
624	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)");
625		678
626	enc.flags = flags;	679	enc.json = *json;
627	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	680	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
628	enc.cur = SvPVX (enc.sv);	681	enc.cur = SvPVX (enc.sv);
629	enc.end = SvEND (enc.sv);	682	enc.end = SvEND (enc.sv);
630	enc.indent = 0;	683	enc.indent = 0;
631	enc.maxdepth = DEC_DEPTH (flags);	684	enc.maxdepth = DEC_DEPTH (enc.json.flags);
632		685
633	SvPOK_only (enc.sv);	686	SvPOK_only (enc.sv);
634	encode_sv (&enc, scalar);	687	encode_sv (&enc, scalar);
635		688
636	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));	689	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));
637	*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
638		691
639	if (!(flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))	692	if (!(enc.json.flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))
640	SvUTF8_on (enc.sv);	693	SvUTF8_on (enc.sv);
641		694
642	if (enc.flags & F_SHRINK)	695	if (enc.json.flags & F_SHRINK)
643	shrink (enc.sv);	696	shrink (enc.sv);
644		697
645	return enc.sv;	698	return enc.sv;
646	}	699	}
647		700
…		…
652	typedef struct	705	typedef struct
653	{	706	{
654	char *cur; // current parser pointer	707	char *cur; // current parser pointer
655	char *end; // end of input string	708	char *end; // end of input string
656	const char *err; // parse error, if != 0	709	const char *err; // parse error, if != 0
657	U32 flags; // F_*	710	JSON json;
658	U32 depth; // recursion depth	711	U32 depth; // recursion depth
659	U32 maxdepth; // recursion depth limit	712	U32 maxdepth; // recursion depth limit
660	} dec_t;	713	} dec_t;
661		714
662	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
663	decode_ws (dec_t *dec)	725	decode_ws (dec_t *dec)
664	{	726	{
665	for (;;)	727	for (;;)
666	{	728	{
667	char ch = *dec->cur;	729	char ch = *dec->cur;
668		730
669	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	}
670	\|\| (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09))	743	else if (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09)
671	break;	744	break; // parse error, but let higher level handle it, gives better error messages
672		745
673	++dec->cur;	746	++dec->cur;
674	}	747	}
675	}	748	}
676		749
…		…
925	is_nv = 1;	998	is_nv = 1;
926	}	999	}
927		1000
928	if (!is_nv)	1001	if (!is_nv)
929	{	1002	{
		1003	int len = dec->cur - start;
		1004
930	// 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
931	if (*start == '-')	1006	if (*start == '-')
932	switch (dec->cur - start)	1007	switch (len)
933	{	1008	{
934	case 2: return newSViv (-( start [1] - '0' * 1));	1009	case 2: return newSViv (-( start [1] - '0' * 1));
935	case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11));	1010	case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11));
936	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));
937	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));
938	}	1013	}
939	else	1014	else
940	switch (dec->cur - start)	1015	switch (len)
941	{	1016	{
942	case 1: return newSViv ( start [0] - '0' * 1);	1017	case 1: return newSViv ( start [0] - '0' * 1);
943	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);	1018	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);
944	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);
945	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);
946	}	1021	}
947		1022
948	{	1023	{
949	UV uv;	1024	UV uv;
950	int numtype = grok_number (start, dec->cur - start, &uv);	1025	int numtype = grok_number (start, len, &uv);
951	if (numtype & IS_NUMBER_IN_UV)	1026	if (numtype & IS_NUMBER_IN_UV)
952	if (numtype & IS_NUMBER_NEG)	1027	if (numtype & IS_NUMBER_NEG)
953	{	1028	{
954	if (uv < (UV)IV_MIN)	1029	if (uv < (UV)IV_MIN)
955	return newSViv (-(IV)uv);	1030	return newSViv (-(IV)uv);
956	}	1031	}
957	else	1032	else
958	return newSVuv (uv);	1033	return newSVuv (uv);
959
960	// here would likely be the place for bigint support
961	}	1034	}
962	}
963		1035
964	// 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
965	return newSVnv (Atof (start));	1052	return newSVnv (Atof (start));
966		1053
967	fail:	1054	fail:
968	return 0;	1055	return 0;
969	}	1056	}
…		…
999		1086
1000	if (*dec->cur != ',')	1087	if (*dec->cur != ',')
1001	ERR (", or ] expected while parsing array");	1088	ERR (", or ] expected while parsing array");
1002		1089
1003	++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	}
1004	}	1099	}
1005		1100
1006	DEC_DEC_DEPTH;	1101	DEC_DEC_DEPTH;
1007	return newRV_noinc ((SV *)av);	1102	return newRV_noinc ((SV *)av);
1008		1103
…		…
1013	}	1108	}
1014		1109
1015	static SV *	1110	static SV *
1016	decode_hv (dec_t *dec)	1111	decode_hv (dec_t *dec)
1017	{	1112	{
		1113	SV *sv;
1018	HV *hv = newHV ();	1114	HV *hv = newHV ();
1019		1115
1020	DEC_INC_DEPTH;	1116	DEC_INC_DEPTH;
1021	decode_ws (dec);	1117	decode_ws (dec);
1022		1118
1023	if (*dec->cur == '}')	1119	if (*dec->cur == '}')
1024	++dec->cur;	1120	++dec->cur;
1025	else	1121	else
1026	for (;;)	1122	for (;;)
1027	{	1123	{
1028	decode_ws (dec); EXPECT_CH ('"');	1124	EXPECT_CH ('"');
1029		1125
1030	// heuristic: assume that	1126	// heuristic: assume that
1031	// a) decode_str + hv_store_ent are abysmally slow	1127	// a) decode_str + hv_store_ent are abysmally slow.
1032	// b) most hash keys are short, simple ascii text	1128	// b) most hash keys are short, simple ascii text.
1033	// so try to "fast-match" such strings to avoid	1129	// => try to "fast-match" such strings to avoid
1034	// the overhead of hv_store_ent.	1130	// the overhead of decode_str + hv_store_ent.
1035	{	1131	{
1036	SV *value;	1132	SV *value;
1037	char *p = dec->cur;	1133	char *p = dec->cur;
1038	char *e = p + 24; // only try up to 24 bytes	1134	char *e = p + 24; // only try up to 24 bytes
1039		1135
1040	for (;;)	1136	for (;;)
1041	{	1137	{
		1138	// the >= 0x80 is true on most architectures
1042	if (p == e \|\| p < 0x20 \|\| p >= 0x80 \|\| *p == '\\')	1139	if (p == e \|\| p < 0x20 \|\| p >= 0x80 \|\| *p == '\\')
1043	{	1140	{
1044	// slow path, back up and use decode_str	1141	// slow path, back up and use decode_str
1045	SV *key = decode_str (dec);	1142	SV *key = decode_str (dec);
1046	if (!key)	1143	if (!key)
1047	goto fail;	1144	goto fail;
1048		1145
1049	decode_ws (dec); EXPECT_CH (':');	1146	decode_ws (dec); EXPECT_CH (':');
1050		1147
		1148	decode_ws (dec);
1051	value = decode_sv (dec);	1149	value = decode_sv (dec);
1052	if (!value)	1150	if (!value)
1053	{	1151	{
1054	SvREFCNT_dec (key);	1152	SvREFCNT_dec (key);
1055	goto fail;	1153	goto fail;
…		…
1067	int len = p - key;	1165	int len = p - key;
1068	dec->cur = p + 1;	1166	dec->cur = p + 1;
1069		1167
1070	decode_ws (dec); EXPECT_CH (':');	1168	decode_ws (dec); EXPECT_CH (':');
1071		1169
		1170	decode_ws (dec);
1072	value = decode_sv (dec);	1171	value = decode_sv (dec);
1073	if (!value)	1172	if (!value)
1074	goto fail;	1173	goto fail;
1075		1174
1076	hv_store (hv, key, len, value, 0);	1175	hv_store (hv, key, len, value, 0);
…		…
1092		1191
1093	if (*dec->cur != ',')	1192	if (*dec->cur != ',')
1094	ERR (", or } expected while parsing object/hash");	1193	ERR (", or } expected while parsing object/hash");
1095		1194
1096	++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	}
1097	}	1204	}
1098		1205
1099	DEC_DEC_DEPTH;	1206	DEC_DEC_DEPTH;
1100	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;
1101		1268
1102	fail:	1269	fail:
1103	SvREFCNT_dec (hv);	1270	SvREFCNT_dec (hv);
1104	DEC_DEC_DEPTH;	1271	DEC_DEC_DEPTH;
1105	return 0;	1272	return 0;
1106	}	1273	}
1107		1274
1108	static SV *	1275	static SV *
1109	decode_sv (dec_t *dec)	1276	decode_sv (dec_t *dec)
1110	{	1277	{
1111	decode_ws (dec);
1112
1113	// the beauty of JSON: you need exactly one character lookahead	1278	// the beauty of JSON: you need exactly one character lookahead
1114	// to parse anything.	1279	// to parse anything.
1115	switch (*dec->cur)	1280	switch (*dec->cur)
1116	{	1281	{
1117	case '"': ++dec->cur; return decode_str (dec);	1282	case '"': ++dec->cur; return decode_str (dec);
…		…
1125		1290
1126	case 't':	1291	case 't':
1127	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))	1292	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))
1128	{	1293	{
1129	dec->cur += 4;	1294	dec->cur += 4;
		1295	#if JSON_SLOW
		1296	json_true = get_sv ("JSON::XS::true", 1); SvREADONLY_on (json_true);
		1297	#endif
1130	return SvREFCNT_inc (json_true);	1298	return SvREFCNT_inc (json_true);
1131	}	1299	}
1132	else	1300	else
1133	ERR ("'true' expected");	1301	ERR ("'true' expected");
1134		1302
…		…
1136		1304
1137	case 'f':	1305	case 'f':
1138	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))	1306	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))
1139	{	1307	{
1140	dec->cur += 5;	1308	dec->cur += 5;
		1309	#if JSON_SLOW
		1310	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);
		1311	#endif
1141	return SvREFCNT_inc (json_false);	1312	return SvREFCNT_inc (json_false);
1142	}	1313	}
1143	else	1314	else
1144	ERR ("'false' expected");	1315	ERR ("'false' expected");
1145		1316
…		…
1164	fail:	1335	fail:
1165	return 0;	1336	return 0;
1166	}	1337	}
1167		1338
1168	static SV *	1339	static SV *
1169	decode_json (SV string, U32 flags, UV offset_return)	1340	decode_json (SV string, JSON json, UV *offset_return)
1170	{	1341	{
1171	dec_t dec;	1342	dec_t dec;
1172	UV offset;	1343	UV offset;
1173	SV *sv;	1344	SV *sv;
1174		1345
1175	SvGETMAGIC (string);	1346	SvGETMAGIC (string);
1176	SvUPGRADE (string, SVt_PV);	1347	SvUPGRADE (string, SVt_PV);
1177		1348
1178	if (flags & F_MAXSIZE && SvCUR (string) > DEC_SIZE (flags))	1349	if (json->flags & F_MAXSIZE && SvCUR (string) > DEC_SIZE (json->flags))
1179	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",	1350	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",
1180	(unsigned long)SvCUR (string), (unsigned long)DEC_SIZE (flags));	1351	(unsigned long)SvCUR (string), (unsigned long)DEC_SIZE (json->flags));
1181		1352
1182	if (flags & F_UTF8)	1353	if (json->flags & F_UTF8)
1183	sv_utf8_downgrade (string, 0);	1354	sv_utf8_downgrade (string, 0);
1184	else	1355	else
1185	sv_utf8_upgrade (string);	1356	sv_utf8_upgrade (string);
1186		1357
1187	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP	1358	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP
1188		1359
1189	dec.flags = flags;	1360	dec.json = *json;
1190	dec.cur = SvPVX (string);	1361	dec.cur = SvPVX (string);
1191	dec.end = SvEND (string);	1362	dec.end = SvEND (string);
1192	dec.err = 0;	1363	dec.err = 0;
1193	dec.depth = 0;	1364	dec.depth = 0;
1194	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;
1195		1369
1196	*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);
1197	sv = decode_sv (&dec);	1373	sv = decode_sv (&dec);
1198		1374
1199	if (!(offset_return \|\| !sv))	1375	if (!(offset_return \|\| !sv))
1200	{	1376	{
1201	// check for trailing garbage	1377	// check for trailing garbage
…		…
1209	}	1385	}
1210	}	1386	}
1211		1387
1212	if (offset_return \|\| !sv)	1388	if (offset_return \|\| !sv)
1213	{	1389	{
1214	offset = dec.flags & F_UTF8	1390	offset = dec.json.flags & F_UTF8
1215	? dec.cur - SvPVX (string)	1391	? dec.cur - SvPVX (string)
1216	: utf8_distance (dec.cur, SvPVX (string));	1392	: utf8_distance (dec.cur, SvPVX (string));
1217		1393
1218	if (offset_return)	1394	if (offset_return)
1219	*offset_return = offset;	1395	*offset_return = offset;
…		…
1238	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");	1414	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");
1239	}	1415	}
1240		1416
1241	sv = sv_2mortal (sv);	1417	sv = sv_2mortal (sv);
1242		1418
1243	if (!(dec.flags & F_ALLOW_NONREF) && !SvROK (sv))	1419	if (!(dec.json.flags & F_ALLOW_NONREF) && !SvROK (sv))
1244	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)");
1245		1421
1246	return sv;	1422	return sv;
1247	}	1423	}
1248		1424
…		…
1269	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);	1445	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);
1270	}	1446	}
1271		1447
1272	PROTOTYPES: DISABLE	1448	PROTOTYPES: DISABLE
1273		1449
1274	SV new (char dummy)	1450	void CLONE (...)
1275	CODE:	1451	CODE:
1276	RETVAL = sv_bless (newRV_noinc (newSVuv (F_DEFAULT)), json_stash);	1452	json_stash = 0;
1277	OUTPUT:	1453	json_boolean_stash = 0;
1278	RETVAL
1279		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 (newRV_noinc (pv), JSON_STASH)));
		1463	}
		1464
1280	SV ascii (SV self, int enable = 1)	1465	void ascii (JSON *self, int enable = 1)
1281	ALIAS:	1466	ALIAS:
1282	ascii = F_ASCII	1467	ascii = F_ASCII
1283	latin1 = F_LATIN1	1468	latin1 = F_LATIN1
1284	utf8 = F_UTF8	1469	utf8 = F_UTF8
1285	indent = F_INDENT	1470	indent = F_INDENT
…		…
1289	pretty = F_PRETTY	1474	pretty = F_PRETTY
1290	allow_nonref = F_ALLOW_NONREF	1475	allow_nonref = F_ALLOW_NONREF
1291	shrink = F_SHRINK	1476	shrink = F_SHRINK
1292	allow_blessed = F_ALLOW_BLESSED	1477	allow_blessed = F_ALLOW_BLESSED
1293	convert_blessed = F_CONV_BLESSED	1478	convert_blessed = F_CONV_BLESSED
		1479	relaxed = F_RELAXED
		1480	PPCODE:
		1481	{
		1482	if (enable)
		1483	self->flags \|= ix;
		1484	else
		1485	self->flags &= ~ix;
		1486
		1487	XPUSHs (ST (0));
		1488	}
		1489
		1490	void get_ascii (JSON *self)
		1491	ALIAS:
		1492	get_ascii = F_ASCII
		1493	get_latin1 = F_LATIN1
		1494	get_utf8 = F_UTF8
		1495	get_indent = F_INDENT
		1496	get_canonical = F_CANONICAL
		1497	get_space_before = F_SPACE_BEFORE
		1498	get_space_after = F_SPACE_AFTER
		1499	get_pretty = F_PRETTY
		1500	get_allow_nonref = F_ALLOW_NONREF
		1501	get_shrink = F_SHRINK
		1502	get_allow_blessed = F_ALLOW_BLESSED
		1503	get_convert_blessed = F_CONV_BLESSED
		1504	get_relaxed = F_RELAXED
		1505	PPCODE:
		1506	XPUSHs (boolSV (self->flags & ix));
		1507
		1508	void max_depth (JSON *self, UV max_depth = 0x80000000UL)
		1509	PPCODE:
		1510	{
		1511	UV log2 = 0;
		1512
		1513	if (max_depth > 0x80000000UL) max_depth = 0x80000000UL;
		1514
		1515	while ((1UL << log2) < max_depth)
		1516	++log2;
		1517
		1518	self->flags = self->flags & ~F_MAXDEPTH \| (log2 << S_MAXDEPTH);
		1519
		1520	XPUSHs (ST (0));
		1521	}
		1522
		1523	int get_max_depth (JSON *self)
1294	CODE:	1524	CODE:
1295	{	1525	RETVAL = DEC_DEPTH (self->flags);
1296	UV *uv = SvJSON (self);
1297	if (enable)
1298	*uv \|= ix;
1299	else
1300	*uv &= ~ix;
1301
1302	RETVAL = newSVsv (self);
1303	}
1304	OUTPUT:	1526	OUTPUT:
1305	RETVAL	1527	RETVAL
1306		1528
1307	SV max_depth (SV self, UV max_depth = 0x80000000UL)	1529	void max_size (JSON *self, UV max_size = 0)
		1530	PPCODE:
		1531	{
		1532	UV log2 = 0;
		1533
		1534	if (max_size > 0x80000000UL) max_size = 0x80000000UL;
		1535	if (max_size == 1) max_size = 2;
		1536
		1537	while ((1UL << log2) < max_size)
		1538	++log2;
		1539
		1540	self->flags = self->flags & ~F_MAXSIZE \| (log2 << S_MAXSIZE);
		1541
		1542	XPUSHs (ST (0));
		1543	}
		1544
		1545	int get_max_size (JSON *self)
1308	CODE:	1546	CODE:
1309	{	1547	RETVAL = DEC_SIZE (self->flags);
1310	UV *uv = SvJSON (self);
1311	UV log2 = 0;
1312
1313	if (max_depth > 0x80000000UL) max_depth = 0x80000000UL;
1314
1315	while ((1UL << log2) < max_depth)
1316	++log2;
1317
1318	uv = uv & ~F_MAXDEPTH \| (log2 << S_MAXDEPTH);
1319
1320	RETVAL = newSVsv (self);
1321	}
1322	OUTPUT:	1548	OUTPUT:
1323	RETVAL	1549	RETVAL
1324		1550
1325	SV max_size (SV self, UV max_size = 0)	1551	void filter_json_object (JSON self, SV cb = &PL_sv_undef)
1326	CODE:
1327	{
1328	UV *uv = SvJSON (self);
1329	UV log2 = 0;
1330
1331	if (max_size > 0x80000000UL) max_size = 0x80000000UL;
1332	if (max_size == 1) max_size = 2;
1333
1334	while ((1UL << log2) < max_size)
1335	++log2;
1336
1337	uv = uv & ~F_MAXSIZE \| (log2 << S_MAXSIZE);
1338
1339	RETVAL = newSVsv (self);
1340	}
1341	OUTPUT:
1342	RETVAL
1343
1344	void encode (SV self, SV scalar)
1345	PPCODE:	1552	PPCODE:
1346	XPUSHs (encode_json (scalar, *SvJSON (self)));	1553	{
		1554	SvREFCNT_dec (self->cb_object);
		1555	self->cb_object = SvOK (cb) ? newSVsv (cb) : 0;
1347		1556
1348	void decode (SV self, SV jsonstr)	1557	XPUSHs (ST (0));
		1558	}
		1559
		1560	void filter_json_single_key_object (JSON self, SV key, SV *cb = &PL_sv_undef)
1349	PPCODE:	1561	PPCODE:
		1562	{
		1563	if (!self->cb_sk_object)
		1564	self->cb_sk_object = newHV ();
		1565
		1566	if (SvOK (cb))
		1567	hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0);
		1568	else
		1569	{
		1570	hv_delete_ent (self->cb_sk_object, key, G_DISCARD, 0);
		1571
		1572	if (!HvKEYS (self->cb_sk_object))
		1573	{
		1574	SvREFCNT_dec (self->cb_sk_object);
		1575	self->cb_sk_object = 0;
		1576	}
		1577	}
		1578
		1579	XPUSHs (ST (0));
		1580	}
		1581
		1582	void encode (JSON self, SV scalar)
		1583	PPCODE:
		1584	XPUSHs (encode_json (scalar, self));
		1585
		1586	void decode (JSON self, SV jsonstr)
		1587	PPCODE:
1350	XPUSHs (decode_json (jsonstr, *SvJSON (self), 0));	1588	XPUSHs (decode_json (jsonstr, self, 0));
1351		1589
1352	void decode_prefix (SV self, SV jsonstr)	1590	void decode_prefix (JSON self, SV jsonstr)
1353	PPCODE:	1591	PPCODE:
1354	{	1592	{
1355	UV offset;	1593	UV offset;
1356	EXTEND (SP, 2);	1594	EXTEND (SP, 2);
1357	PUSHs (decode_json (jsonstr, *SvJSON (self), &offset));	1595	PUSHs (decode_json (jsonstr, self, &offset));
1358	PUSHs (sv_2mortal (newSVuv (offset)));	1596	PUSHs (sv_2mortal (newSVuv (offset)));
1359	}	1597	}
1360		1598
		1599	void DESTROY (JSON *self)
		1600	CODE:
		1601	SvREFCNT_dec (self->cb_sk_object);
		1602	SvREFCNT_dec (self->cb_object);
		1603
1361	PROTOTYPES: ENABLE	1604	PROTOTYPES: ENABLE
1362		1605
1363	void to_json (SV *scalar)	1606	void to_json (SV *scalar)
1364	ALIAS:
1365	objToJson = 0
1366	PPCODE:	1607	PPCODE:
		1608	{
		1609	JSON json = { F_DEFAULT \| F_UTF8 };
1367	XPUSHs (encode_json (scalar, F_DEFAULT \| F_UTF8));	1610	XPUSHs (encode_json (scalar, &json));
		1611	}
1368		1612
1369	void from_json (SV *jsonstr)	1613	void from_json (SV *jsonstr)
1370	ALIAS:
1371	jsonToObj = 0
1372	PPCODE:	1614	PPCODE:
		1615	{
		1616	JSON json = { F_DEFAULT \| F_UTF8 };
1373	XPUSHs (decode_json (jsonstr, F_DEFAULT \| F_UTF8, 0));	1617	XPUSHs (decode_json (jsonstr, &json, 0));
		1618	}
1374		1619

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Comparing JSON-XS/XS.xs (file contents): Revision 1.46 by root, Mon Jun 25 22:11:39 2007 UTC vs. Revision 1.66 by root, Sun Nov 25 19:02:42 2007 UTC

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Comparing JSON-XS/XS.xs (file contents):
Revision 1.46 by root, Mon Jun 25 22:11:39 2007 UTC vs.
Revision 1.66 by root, Sun Nov 25 19:02:42 2007 UTC