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

Comparing JSON-XS/XS.xs (file contents):
Revision 1.45 by root, Mon Jun 25 06:57:42 2007 UTC vs.
Revision 1.71 by root, Wed Mar 19 03:17:38 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
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
…		…
46		50
47	#define SB do {	51	#define SB do {
48	#define SE } while (0)	52	#define SE } while (0)
49		53
50	#if __GNUC__ >= 3	54	#if __GNUC__ >= 3
51	# define expect(expr,value) __builtin_expect ((expr),(value))	55	# define expect(expr,value) __builtin_expect ((expr), (value))
52	# define inline inline	56	# define INLINE static inline
53	#else	57	#else
54	# define expect(expr,value) (expr)	58	# define expect(expr,value) (expr)
55	# define inline static	59	# define INLINE static
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	{
…		…
90	// decode an utf-8 character and return it, or (UV)-1 in	99	// decode an utf-8 character and return it, or (UV)-1 in
91	// case of an error.	100	// case of an error.
92	// we special-case "safe" characters from U+80 .. U+7FF,	101	// we special-case "safe" characters from U+80 .. U+7FF,
93	// but use the very good perl function to parse anything else.	102	// but use the very good perl function to parse anything else.
94	// note that we never call this function for a ascii codepoints	103	// note that we never call this function for a ascii codepoints
95	inline UV	104	INLINE UV
96	decode_utf8 (unsigned char s, STRLEN len, STRLEN clen)	105	decode_utf8 (unsigned char s, STRLEN len, STRLEN clen)
97	{	106	{
98	if (expect_false (s[0] > 0xdf \|\| s[0] < 0xc2))	107	if (expect_false (s[0] > 0xdf \|\| s[0] < 0xc2))
99	return utf8n_to_uvuni (s, len, clen, UTF8_CHECK_ONLY);	108	return utf8n_to_uvuni (s, len, clen, UTF8_CHECK_ONLY);
100	else if (len > 1 && s[1] >= 0x80 && s[1] <= 0xbf)	109	else if (len > 1 && s[1] >= 0x80 && s[1] <= 0xbf)
…		…
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
		133	UV limit; // escape character values >= this value when encoding
124	} enc_t;	134	} enc_t;
125		135
126	inline void	136	INLINE void
127	need (enc_t *enc, STRLEN len)	137	need (enc_t *enc, STRLEN len)
128	{	138	{
129	if (expect_false (enc->cur + len >= enc->end))	139	if (expect_false (enc->cur + len >= enc->end))
130	{	140	{
131	STRLEN cur = enc->cur - SvPVX (enc->sv);	141	STRLEN cur = enc->cur - SvPVX (enc->sv);
…		…
133	enc->cur = SvPVX (enc->sv) + cur;	143	enc->cur = SvPVX (enc->sv) + cur;
134	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;	144	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;
135	}	145	}
136	}	146	}
137		147
138	inline void	148	INLINE void
139	encode_ch (enc_t *enc, char ch)	149	encode_ch (enc_t *enc, char ch)
140	{	150	{
141	need (enc, 1);	151	need (enc, 1);
142	*enc->cur++ = ch;	152	*enc->cur++ = ch;
143	}	153	}
…		…
197	{	207	{
198	uch = ch;	208	uch = ch;
199	clen = 1;	209	clen = 1;
200	}	210	}
201		211
202	if (uch > 0x10FFFFUL)	212	if (uch < 0x20 \|\| uch >= enc->limit)
203	croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);
204
205	if (uch < 0x80 \|\| enc->flags & F_ASCII \|\| (enc->flags & F_LATIN1 && uch > 0xFF))
206	{	213	{
207	if (uch > 0xFFFFUL)	214	if (uch > 0xFFFFUL)
208	{	215	{
		216	if (uch > 0x10FFFFUL)
		217	croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);
		218
209	need (enc, len += 11);	219	need (enc, len += 11);
210	sprintf (enc->cur, "\\u%04x\\u%04x",	220	sprintf (enc->cur, "\\u%04x\\u%04x",
211	(int)((uch - 0x10000) / 0x400 + 0xD800),	221	(int)((uch - 0x10000) / 0x400 + 0xD800),
212	(int)((uch - 0x10000) % 0x400 + 0xDC00));	222	(int)((uch - 0x10000) % 0x400 + 0xDC00));
213	enc->cur += 12;	223	enc->cur += 12;
…		…
224	*enc->cur++ = hexdigit [(uch >> 0) & 15];	234	*enc->cur++ = hexdigit [(uch >> 0) & 15];
225	}	235	}
226		236
227	str += clen;	237	str += clen;
228	}	238	}
229	else if (enc->flags & F_LATIN1)	239	else if (enc->json.flags & F_LATIN1)
230	{	240	{
231	*enc->cur++ = uch;	241	*enc->cur++ = uch;
232	str += clen;	242	str += clen;
233	}	243	}
234	else if (is_utf8)	244	else if (is_utf8)
…		…
252		262
253	--len;	263	--len;
254	}	264	}
255	}	265	}
256		266
257	inline void	267	INLINE void
258	encode_indent (enc_t *enc)	268	encode_indent (enc_t *enc)
259	{	269	{
260	if (enc->flags & F_INDENT)	270	if (enc->json.flags & F_INDENT)
261	{	271	{
262	int spaces = enc->indent * INDENT_STEP;	272	int spaces = enc->indent * INDENT_STEP;
263		273
264	need (enc, spaces);	274	need (enc, spaces);
265	memset (enc->cur, ' ', spaces);	275	memset (enc->cur, ' ', spaces);
266	enc->cur += spaces;	276	enc->cur += spaces;
267	}	277	}
268	}	278	}
269		279
270	inline void	280	INLINE void
271	encode_space (enc_t *enc)	281	encode_space (enc_t *enc)
272	{	282	{
273	need (enc, 1);	283	need (enc, 1);
274	encode_ch (enc, ' ');	284	encode_ch (enc, ' ');
275	}	285	}
276		286
277	inline void	287	INLINE void
278	encode_nl (enc_t *enc)	288	encode_nl (enc_t *enc)
279	{	289	{
280	if (enc->flags & F_INDENT)	290	if (enc->json.flags & F_INDENT)
281	{	291	{
282	need (enc, 1);	292	need (enc, 1);
283	encode_ch (enc, '\n');	293	encode_ch (enc, '\n');
284	}	294	}
285	}	295	}
286		296
287	inline void	297	INLINE void
288	encode_comma (enc_t *enc)	298	encode_comma (enc_t *enc)
289	{	299	{
290	encode_ch (enc, ',');	300	encode_ch (enc, ',');
291		301
292	if (enc->flags & F_INDENT)	302	if (enc->json.flags & F_INDENT)
293	encode_nl (enc);	303	encode_nl (enc);
294	else if (enc->flags & F_SPACE_AFTER)	304	else if (enc->json.flags & F_SPACE_AFTER)
295	encode_space (enc);	305	encode_space (enc);
296	}	306	}
297		307
298	static void encode_sv (enc_t enc, SV sv);	308	static void encode_sv (enc_t enc, SV sv);
299		309
…		…
303	int i, len = av_len (av);	313	int i, len = av_len (av);
304		314
305	if (enc->indent >= enc->maxdepth)	315	if (enc->indent >= enc->maxdepth)
306	croak ("data structure too deep (hit recursion limit)");	316	croak ("data structure too deep (hit recursion limit)");
307		317
308	encode_ch (enc, '['); encode_nl (enc);	318	encode_ch (enc, '[');
309	++enc->indent;	319
		320	if (len >= 0)
		321	{
		322	encode_nl (enc); ++enc->indent;
310		323
311	for (i = 0; i <= len; ++i)	324	for (i = 0; i <= len; ++i)
312	{	325	{
		326	SV **svp = av_fetch (av, i, 0);
		327
313	encode_indent (enc);	328	encode_indent (enc);
314	encode_sv (enc, *av_fetch (av, i, 0));
315		329
		330	if (svp)
		331	encode_sv (enc, *svp);
		332	else
		333	encode_str (enc, "null", 4, 0);
		334
316	if (i < len)	335	if (i < len)
317	encode_comma (enc);	336	encode_comma (enc);
318	}	337	}
319		338
		339	encode_nl (enc); --enc->indent; encode_indent (enc);
		340	}
		341
320	encode_nl (enc);	342	encode_ch (enc, ']');
321
322	--enc->indent;
323	encode_indent (enc); encode_ch (enc, ']');
324	}	343	}
325		344
326	static void	345	static void
327	encode_he (enc_t enc, HE he)	346	encode_hk (enc_t enc, HE he)
328	{	347	{
329	encode_ch (enc, '"');	348	encode_ch (enc, '"');
330		349
331	if (HeKLEN (he) == HEf_SVKEY)	350	if (HeKLEN (he) == HEf_SVKEY)
332	{	351	{
…		…
342	else	361	else
343	encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he));	362	encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he));
344		363
345	encode_ch (enc, '"');	364	encode_ch (enc, '"');
346		365
347	if (enc->flags & F_SPACE_BEFORE) encode_space (enc);	366	if (enc->json.flags & F_SPACE_BEFORE) encode_space (enc);
348	encode_ch (enc, ':');	367	encode_ch (enc, ':');
349	if (enc->flags & F_SPACE_AFTER ) encode_space (enc);	368	if (enc->json.flags & F_SPACE_AFTER ) encode_space (enc);
350	encode_sv (enc, HeVAL (he));
351	}	369	}
352		370
353	// compare hash entries, used when all keys are bytestrings	371	// compare hash entries, used when all keys are bytestrings
354	static int	372	static int
355	he_cmp_fast (const void a_, const void b_)	373	he_cmp_fast (const void a_, const void b_)
…		…
360	HE b = (HE **)b_;	378	HE b = (HE **)b_;
361		379
362	STRLEN la = HeKLEN (a);	380	STRLEN la = HeKLEN (a);
363	STRLEN lb = HeKLEN (b);	381	STRLEN lb = HeKLEN (b);
364		382
365	if (!(cmp = memcmp (HeKEY (a), HeKEY (b), la < lb ? la : lb)))	383	if (!(cmp = memcmp (HeKEY (b), HeKEY (a), lb < la ? lb : la)))
366	cmp = la - lb;	384	cmp = lb - la;
367		385
368	return cmp;	386	return cmp;
369	}	387	}
370		388
371	// compare hash entries, used when some keys are sv's or utf-x	389	// compare hash entries, used when some keys are sv's or utf-x
372	static int	390	static int
373	he_cmp_slow (const void a, const void b)	391	he_cmp_slow (const void a, const void b)
374	{	392	{
375	return sv_cmp (HeSVKEY_force ((HE )a), HeSVKEY_force ((HE **)b));	393	return sv_cmp (HeSVKEY_force ((HE )b), HeSVKEY_force ((HE **)a));
376	}	394	}
377		395
378	static void	396	static void
379	encode_hv (enc_t enc, HV hv)	397	encode_hv (enc_t enc, HV hv)
380	{	398	{
		399	HE *he;
381	int count, i;	400	int count;
382		401
383	if (enc->indent >= enc->maxdepth)	402	if (enc->indent >= enc->maxdepth)
384	croak ("data structure too deep (hit recursion limit)");	403	croak ("data structure too deep (hit recursion limit)");
385		404
386	encode_ch (enc, '{'); encode_nl (enc); ++enc->indent;	405	encode_ch (enc, '{');
387		406
388	if ((count = hv_iterinit (hv)))
389	{
390	// for canonical output we have to sort by keys first	407	// for canonical output we have to sort by keys first
391	// actually, this is mostly due to the stupid so-called	408	// actually, this is mostly due to the stupid so-called
392	// security workaround added somewhere in 5.8.x.	409	// security workaround added somewhere in 5.8.x.
393	// that randomises hash orderings	410	// that randomises hash orderings
394	if (enc->flags & F_CANONICAL)	411	if (enc->json.flags & F_CANONICAL)
		412	{
		413	int count = hv_iterinit (hv);
		414
		415	if (SvMAGICAL (hv))
395	{	416	{
		417	// need to count by iterating. could improve by dynamically building the vector below
		418	// but I don't care for the speed of this special case.
		419	// note also that we will run into undefined behaviour when the two iterations
		420	// do not result in the same count, something I might care for in some later release.
		421
		422	count = 0;
		423	while (hv_iternext (hv))
		424	++count;
		425
		426	hv_iterinit (hv);
		427	}
		428
		429	if (count)
		430	{
396	int fast = 1;	431	int i, fast = 1;
397	HE *he;
398	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	432	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)
399	HE *hes = _alloca (count sizeof (HE));	433	HE *hes = _alloca (count sizeof (HE));
400	#else	434	#else
401	HE *hes [count]; // if your compiler dies here, you need to enable C99 mode	435	HE *hes [count]; // if your compiler dies here, you need to enable C99 mode
402	#endif	436	#endif
…		…
429		463
430	FREETMPS;	464	FREETMPS;
431	LEAVE;	465	LEAVE;
432	}	466	}
433		467
434	for (i = 0; i < count; ++i)	468	encode_nl (enc); ++enc->indent;
		469
		470	while (count--)
435	{	471	{
436	encode_indent (enc);	472	encode_indent (enc);
		473	he = hes [count];
437	encode_he (enc, hes [i]);	474	encode_hk (enc, he);
		475	encode_sv (enc, expect_false (SvMAGICAL (hv)) ? hv_iterval (hv, he) : HeVAL (he));
438		476
439	if (i < count - 1)	477	if (count)
440	encode_comma (enc);	478	encode_comma (enc);
441	}	479	}
442		480
443	encode_nl (enc);	481	encode_nl (enc); --enc->indent; encode_indent (enc);
444	}	482	}
		483	}
445	else	484	else
		485	{
		486	if (hv_iterinit (hv) \|\| SvMAGICAL (hv))
		487	if ((he = hv_iternext (hv)))
446	{	488	{
447	HE *he = hv_iternext (hv);	489	encode_nl (enc); ++enc->indent;
448		490
449	for (;;)	491	for (;;)
450	{	492	{
451	encode_indent (enc);	493	encode_indent (enc);
452	encode_he (enc, he);	494	encode_hk (enc, he);
		495	encode_sv (enc, expect_false (SvMAGICAL (hv)) ? hv_iterval (hv, he) : HeVAL (he));
453		496
454	if (!(he = hv_iternext (hv)))	497	if (!(he = hv_iternext (hv)))
455	break;	498	break;
456		499
457	encode_comma (enc);	500	encode_comma (enc);
458	}	501	}
459		502
460	encode_nl (enc);	503	encode_nl (enc); --enc->indent; encode_indent (enc);
461	}	504	}
462	}	505	}
463		506
464	--enc->indent; encode_indent (enc); encode_ch (enc, '}');	507	encode_ch (enc, '}');
465	}	508	}
466		509
467	// encode objects, arrays and special \0=false and \1=true values.	510	// encode objects, arrays and special \0=false and \1=true values.
468	static void	511	static void
469	encode_rv (enc_t enc, SV sv)	512	encode_rv (enc_t enc, SV sv)
…		…
473	SvGETMAGIC (sv);	516	SvGETMAGIC (sv);
474	svt = SvTYPE (sv);	517	svt = SvTYPE (sv);
475		518
476	if (expect_false (SvOBJECT (sv)))	519	if (expect_false (SvOBJECT (sv)))
477	{	520	{
		521	HV *stash = !JSON_SLOW \|\| json_boolean_stash
		522	? json_boolean_stash
		523	: gv_stashpv ("JSON::XS::Boolean", 1);
		524
478	if (SvSTASH (sv) == json_boolean_stash)	525	if (SvSTASH (sv) == stash)
479	{	526	{
480	if (SvIV (sv) == 0)	527	if (SvIV (sv))
		528	encode_str (enc, "true", 4, 0);
		529	else
481	encode_str (enc, "false", 5, 0);	530	encode_str (enc, "false", 5, 0);
482	else
483	encode_str (enc, "true", 4, 0);
484	}	531	}
485	else	532	else
486	{	533	{
487	#if 0	534	#if 0
488	if (0 && sv_derived_from (rv, "JSON::Literal"))	535	if (0 && sv_derived_from (rv, "JSON::Literal"))
489	{	536	{
490	// not yet	537	// not yet
491	}	538	}
492	#endif	539	#endif
493	if (enc->flags & F_CONV_BLESSED)	540	if (enc->json.flags & F_CONV_BLESSED)
494	{	541	{
495	// we re-bless the reference to get overload and other niceties right	542	// we re-bless the reference to get overload and other niceties right
496	GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 1);	543	GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 0);
497		544
498	if (to_json)	545	if (to_json)
499	{	546	{
500	dSP;	547	dSP;
501	ENTER;	548
502	SAVETMPS;
503	PUSHMARK (SP);	549	ENTER; SAVETMPS; PUSHMARK (SP);
504	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv)));	550	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv)));
505		551
506	// calling with G_SCALAR ensures that we always get a 1 reutrn value	552	// calling with G_SCALAR ensures that we always get a 1 return value
507	// check anyways.
508	PUTBACK;	553	PUTBACK;
509	assert (1 == call_sv ((SV *)GvCV (to_json), G_SCALAR));	554	call_sv ((SV *)GvCV (to_json), G_SCALAR);
510	SPAGAIN;	555	SPAGAIN;
511		556
		557	// catch this surprisingly common error
		558	if (SvROK (TOPs) && SvRV (TOPs) == sv)
		559	croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
		560
		561	sv = POPs;
		562	PUTBACK;
		563
512	encode_sv (enc, POPs);	564	encode_sv (enc, sv);
513		565
514	FREETMPS;	566	FREETMPS; LEAVE;
515	LEAVE;
516	}	567	}
517	else if (enc->flags & F_ALLOW_BLESSED)	568	else if (enc->json.flags & F_ALLOW_BLESSED)
518	encode_str (enc, "null", 4, 0);	569	encode_str (enc, "null", 4, 0);
519	else	570	else
520	croak ("encountered object '%s', but neither allow_blessed enabled nor TO_JSON method available on it",	571	croak ("encountered object '%s', but neither allow_blessed enabled nor TO_JSON method available on it",
521	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	572	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
522	}	573	}
523	else if (enc->flags & F_ALLOW_BLESSED)	574	else if (enc->json.flags & F_ALLOW_BLESSED)
524	encode_str (enc, "null", 4, 0);	575	encode_str (enc, "null", 4, 0);
525	else	576	else
526	croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled",	577	croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled",
527	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	578	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
528	}	579	}
…		…
531	encode_hv (enc, (HV *)sv);	582	encode_hv (enc, (HV *)sv);
532	else if (svt == SVt_PVAV)	583	else if (svt == SVt_PVAV)
533	encode_av (enc, (AV *)sv);	584	encode_av (enc, (AV *)sv);
534	else if (svt < SVt_PVAV)	585	else if (svt < SVt_PVAV)
535	{	586	{
536	if (SvNIOK (sv) && SvIV (sv) == 0)	587	STRLEN len = 0;
		588	char *pv = svt ? SvPV (sv, len) : 0;
		589
		590	if (len == 1 && *pv == '1')
		591	encode_str (enc, "true", 4, 0);
		592	else if (len == 1 && *pv == '0')
537	encode_str (enc, "false", 5, 0);	593	encode_str (enc, "false", 5, 0);
538	else if (SvNIOK (sv) && SvIV (sv) == 1)
539	encode_str (enc, "true", 4, 0);
540	else	594	else
541	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",	595	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",
542	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	596	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
543	}	597	}
544	else	598	else
…		…
614	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",	668	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",
615	SvPV_nolen (sv), SvFLAGS (sv));	669	SvPV_nolen (sv), SvFLAGS (sv));
616	}	670	}
617		671
618	static SV *	672	static SV *
619	encode_json (SV *scalar, U32 flags)	673	encode_json (SV scalar, JSON json)
620	{	674	{
621	enc_t enc;	675	enc_t enc;
622		676
623	if (!(flags & F_ALLOW_NONREF) && !SvROK (scalar))	677	if (!(json->flags & F_ALLOW_NONREF) && !SvROK (scalar))
624	croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");	678	croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");
625		679
626	enc.flags = flags;	680	enc.json = *json;
627	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	681	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
628	enc.cur = SvPVX (enc.sv);	682	enc.cur = SvPVX (enc.sv);
629	enc.end = SvEND (enc.sv);	683	enc.end = SvEND (enc.sv);
630	enc.indent = 0;	684	enc.indent = 0;
631	enc.maxdepth = DEC_DEPTH (flags);	685	enc.maxdepth = DEC_DEPTH (enc.json.flags);
		686	enc.limit = enc.json.flags & F_ASCII ? 0x000080UL
		687	: enc.json.flags & F_LATIN1 ? 0x000100UL
		688	: 0x10FFFFUL;
632		689
633	SvPOK_only (enc.sv);	690	SvPOK_only (enc.sv);
634	encode_sv (&enc, scalar);	691	encode_sv (&enc, scalar);
635		692
636	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));	693	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));
637	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings	694	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings
638		695
639	if (!(flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))	696	if (!(enc.json.flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))
640	SvUTF8_on (enc.sv);	697	SvUTF8_on (enc.sv);
641		698
642	if (enc.flags & F_SHRINK)	699	if (enc.json.flags & F_SHRINK)
643	shrink (enc.sv);	700	shrink (enc.sv);
644		701
645	return enc.sv;	702	return enc.sv;
646	}	703	}
647		704
…		…
652	typedef struct	709	typedef struct
653	{	710	{
654	char *cur; // current parser pointer	711	char *cur; // current parser pointer
655	char *end; // end of input string	712	char *end; // end of input string
656	const char *err; // parse error, if != 0	713	const char *err; // parse error, if != 0
657	U32 flags; // F_*	714	JSON json;
658	U32 depth; // recursion depth	715	U32 depth; // recursion depth
659	U32 maxdepth; // recursion depth limit	716	U32 maxdepth; // recursion depth limit
660	} dec_t;	717	} dec_t;
661		718
662	inline void	719	INLINE void
		720	decode_comment (dec_t *dec)
		721	{
		722	// only '#'-style comments allowed a.t.m.
		723
		724	while (dec->cur && dec->cur != 0x0a && *dec->cur != 0x0d)
		725	++dec->cur;
		726	}
		727
		728	INLINE void
663	decode_ws (dec_t *dec)	729	decode_ws (dec_t *dec)
664	{	730	{
665	for (;;)	731	for (;;)
666	{	732	{
667	char ch = *dec->cur;	733	char ch = *dec->cur;
668		734
669	if (ch > 0x20	735	if (ch > 0x20)
		736	{
		737	if (expect_false (ch == '#'))
		738	{
		739	if (dec->json.flags & F_RELAXED)
		740	decode_comment (dec);
		741	else
		742	break;
		743	}
		744	else
		745	break;
		746	}
670	\|\| (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09))	747	else if (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09)
671	break;	748	break; // parse error, but let higher level handle it, gives better error messages
672		749
673	++dec->cur;	750	++dec->cur;
674	}	751	}
675	}	752	}
676		753
…		…
925	is_nv = 1;	1002	is_nv = 1;
926	}	1003	}
927		1004
928	if (!is_nv)	1005	if (!is_nv)
929	{	1006	{
		1007	int len = dec->cur - start;
		1008
930	// special case the rather common 1..4-digit-int case, assumes 32 bit ints or so	1009	// special case the rather common 1..5-digit-int case
931	if (*start == '-')	1010	if (*start == '-')
932	switch (dec->cur - start)	1011	switch (len)
933	{	1012	{
934	case 2: return newSViv (-( start [1] - '0' * 1));	1013	case 2: return newSViv (-( start [1] - '0' * 1));
935	case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11));	1014	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));	1015	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));	1016	case 5: return newSViv (-( start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111));
		1017	case 6: return newSViv (-(start [1] * 10000 + start [2] * 1000 + start [3] * 100 + start [4] * 10 + start [5] - '0' * 11111));
938	}	1018	}
939	else	1019	else
940	switch (dec->cur - start)	1020	switch (len)
941	{	1021	{
942	case 1: return newSViv ( start [0] - '0' * 1);	1022	case 1: return newSViv ( start [0] - '0' * 1);
943	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);	1023	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);	1024	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);	1025	case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111);
		1026	case 5: return newSViv ( start [0] * 10000 + start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 11111);
946	}	1027	}
947		1028
948	{	1029	{
949	UV uv;	1030	UV uv;
950	int numtype = grok_number (start, dec->cur - start, &uv);	1031	int numtype = grok_number (start, len, &uv);
951	if (numtype & IS_NUMBER_IN_UV)	1032	if (numtype & IS_NUMBER_IN_UV)
952	if (numtype & IS_NUMBER_NEG)	1033	if (numtype & IS_NUMBER_NEG)
953	{	1034	{
954	if (uv < (UV)IV_MIN)	1035	if (uv < (UV)IV_MIN)
955	return newSViv (-(IV)uv);	1036	return newSViv (-(IV)uv);
956	}	1037	}
957	else	1038	else
958	return newSVuv (uv);	1039	return newSVuv (uv);
959
960	// here would likely be the place for bigint support
961	}	1040	}
962	}
963		1041
964	// if we ever support bigint or bigfloat, this is the place for bigfloat	1042	len -= *start == '-' ? 1 : 0;
		1043
		1044	// does not fit into IV or UV, try NV
		1045	if ((sizeof (NV) == sizeof (double) && DBL_DIG >= len)
		1046	#if defined (LDBL_DIG)
		1047	\|\| (sizeof (NV) == sizeof (long double) && LDBL_DIG >= len)
		1048	#endif
		1049	)
		1050	// fits into NV without loss of precision
		1051	return newSVnv (Atof (start));
		1052
		1053	// everything else fails, convert it to a string
		1054	return newSVpvn (start, dec->cur - start);
		1055	}
		1056
		1057	// loss of precision here
965	return newSVnv (Atof (start));	1058	return newSVnv (Atof (start));
966		1059
967	fail:	1060	fail:
968	return 0;	1061	return 0;
969	}	1062	}
…		…
999		1092
1000	if (*dec->cur != ',')	1093	if (*dec->cur != ',')
1001	ERR (", or ] expected while parsing array");	1094	ERR (", or ] expected while parsing array");
1002		1095
1003	++dec->cur;	1096	++dec->cur;
		1097
		1098	decode_ws (dec);
		1099
		1100	if (*dec->cur == ']' && dec->json.flags & F_RELAXED)
		1101	{
		1102	++dec->cur;
		1103	break;
		1104	}
1004	}	1105	}
1005		1106
1006	DEC_DEC_DEPTH;	1107	DEC_DEC_DEPTH;
1007	return newRV_noinc ((SV *)av);	1108	return newRV_noinc ((SV *)av);
1008		1109
…		…
1013	}	1114	}
1014		1115
1015	static SV *	1116	static SV *
1016	decode_hv (dec_t *dec)	1117	decode_hv (dec_t *dec)
1017	{	1118	{
		1119	SV *sv;
1018	HV *hv = newHV ();	1120	HV *hv = newHV ();
1019		1121
1020	DEC_INC_DEPTH;	1122	DEC_INC_DEPTH;
1021	decode_ws (dec);	1123	decode_ws (dec);
1022		1124
1023	if (*dec->cur == '}')	1125	if (*dec->cur == '}')
1024	++dec->cur;	1126	++dec->cur;
1025	else	1127	else
1026	for (;;)	1128	for (;;)
1027	{	1129	{
		1130	EXPECT_CH ('"');
		1131
		1132	// heuristic: assume that
		1133	// a) decode_str + hv_store_ent are abysmally slow.
		1134	// b) most hash keys are short, simple ascii text.
		1135	// => try to "fast-match" such strings to avoid
		1136	// the overhead of decode_str + hv_store_ent.
		1137	{
1028	SV key, value;	1138	SV *value;
		1139	char *p = dec->cur;
		1140	char *e = p + 24; // only try up to 24 bytes
1029		1141
1030	decode_ws (dec); EXPECT_CH ('"');	1142	for (;;)
1031
1032	key = decode_str (dec);
1033	if (!key)
1034	goto fail;
1035
1036	decode_ws (dec); EXPECT_CH (':');
1037
1038	value = decode_sv (dec);
1039	if (!value)
1040	{	1143	{
		1144	// the >= 0x80 is true on most architectures
		1145	if (p == e \|\| p < 0x20 \|\| p >= 0x80 \|\| *p == '\\')
		1146	{
		1147	// slow path, back up and use decode_str
		1148	SV *key = decode_str (dec);
		1149	if (!key)
		1150	goto fail;
		1151
		1152	decode_ws (dec); EXPECT_CH (':');
		1153
		1154	decode_ws (dec);
		1155	value = decode_sv (dec);
		1156	if (!value)
		1157	{
		1158	SvREFCNT_dec (key);
		1159	goto fail;
		1160	}
		1161
		1162	hv_store_ent (hv, key, value, 0);
1041	SvREFCNT_dec (key);	1163	SvREFCNT_dec (key);
		1164
		1165	break;
		1166	}
		1167	else if (*p == '"')
		1168	{
		1169	// fast path, got a simple key
		1170	char *key = dec->cur;
		1171	int len = p - key;
		1172	dec->cur = p + 1;
		1173
		1174	decode_ws (dec); EXPECT_CH (':');
		1175
		1176	decode_ws (dec);
		1177	value = decode_sv (dec);
		1178	if (!value)
1042	goto fail;	1179	goto fail;
		1180
		1181	hv_store (hv, key, len, value, 0);
		1182
		1183	break;
		1184	}
		1185
		1186	++p;
1043	}	1187	}
1044		1188	}
1045	hv_store_ent (hv, key, value, 0);
1046	SvREFCNT_dec (key);
1047		1189
1048	decode_ws (dec);	1190	decode_ws (dec);
1049		1191
1050	if (*dec->cur == '}')	1192	if (*dec->cur == '}')
1051	{	1193	{
…		…
1055		1197
1056	if (*dec->cur != ',')	1198	if (*dec->cur != ',')
1057	ERR (", or } expected while parsing object/hash");	1199	ERR (", or } expected while parsing object/hash");
1058		1200
1059	++dec->cur;	1201	++dec->cur;
		1202
		1203	decode_ws (dec);
		1204
		1205	if (*dec->cur == '}' && dec->json.flags & F_RELAXED)
		1206	{
		1207	++dec->cur;
		1208	break;
		1209	}
1060	}	1210	}
1061		1211
1062	DEC_DEC_DEPTH;	1212	DEC_DEC_DEPTH;
1063	return newRV_noinc ((SV *)hv);	1213	sv = newRV_noinc ((SV *)hv);
		1214
		1215	// check filter callbacks
		1216	if (dec->json.flags & F_HOOK)
		1217	{
		1218	if (dec->json.cb_sk_object && HvKEYS (hv) == 1)
		1219	{
		1220	HE cb, he;
		1221
		1222	hv_iterinit (hv);
		1223	he = hv_iternext (hv);
		1224	hv_iterinit (hv);
		1225
		1226	// the next line creates a mortal sv each time its called.
		1227	// might want to optimise this for common cases.
		1228	cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0);
		1229
		1230	if (cb)
		1231	{
		1232	dSP;
		1233	int count;
		1234
		1235	ENTER; SAVETMPS; PUSHMARK (SP);
		1236	XPUSHs (HeVAL (he));
		1237
		1238	PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN;
		1239
		1240	if (count == 1)
		1241	{
		1242	sv = newSVsv (POPs);
		1243	FREETMPS; LEAVE;
		1244	return sv;
		1245	}
		1246
		1247	FREETMPS; LEAVE;
		1248	}
		1249	}
		1250
		1251	if (dec->json.cb_object)
		1252	{
		1253	dSP;
		1254	int count;
		1255
		1256	ENTER; SAVETMPS; PUSHMARK (SP);
		1257	XPUSHs (sv_2mortal (sv));
		1258
		1259	PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN;
		1260
		1261	if (count == 1)
		1262	{
		1263	sv = newSVsv (POPs);
		1264	FREETMPS; LEAVE;
		1265	return sv;
		1266	}
		1267
		1268	SvREFCNT_inc (sv);
		1269	FREETMPS; LEAVE;
		1270	}
		1271	}
		1272
		1273	return sv;
1064		1274
1065	fail:	1275	fail:
1066	SvREFCNT_dec (hv);	1276	SvREFCNT_dec (hv);
1067	DEC_DEC_DEPTH;	1277	DEC_DEC_DEPTH;
1068	return 0;	1278	return 0;
1069	}	1279	}
1070		1280
1071	static SV *	1281	static SV *
1072	decode_sv (dec_t *dec)	1282	decode_sv (dec_t *dec)
1073	{	1283	{
1074	decode_ws (dec);
1075
1076	// the beauty of JSON: you need exactly one character lookahead	1284	// the beauty of JSON: you need exactly one character lookahead
1077	// to parse anything.	1285	// to parse anything.
1078	switch (*dec->cur)	1286	switch (*dec->cur)
1079	{	1287	{
1080	case '"': ++dec->cur; return decode_str (dec);	1288	case '"': ++dec->cur; return decode_str (dec);
…		…
1088		1296
1089	case 't':	1297	case 't':
1090	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))	1298	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))
1091	{	1299	{
1092	dec->cur += 4;	1300	dec->cur += 4;
		1301	#if JSON_SLOW
		1302	json_true = get_sv ("JSON::XS::true", 1); SvREADONLY_on (json_true);
		1303	#endif
1093	return SvREFCNT_inc (json_true);	1304	return SvREFCNT_inc (json_true);
1094	}	1305	}
1095	else	1306	else
1096	ERR ("'true' expected");	1307	ERR ("'true' expected");
1097		1308
…		…
1099		1310
1100	case 'f':	1311	case 'f':
1101	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))	1312	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))
1102	{	1313	{
1103	dec->cur += 5;	1314	dec->cur += 5;
		1315	#if JSON_SLOW
		1316	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);
		1317	#endif
1104	return SvREFCNT_inc (json_false);	1318	return SvREFCNT_inc (json_false);
1105	}	1319	}
1106	else	1320	else
1107	ERR ("'false' expected");	1321	ERR ("'false' expected");
1108		1322
…		…
1127	fail:	1341	fail:
1128	return 0;	1342	return 0;
1129	}	1343	}
1130		1344
1131	static SV *	1345	static SV *
1132	decode_json (SV string, U32 flags, UV offset_return)	1346	decode_json (SV string, JSON json, UV *offset_return)
1133	{	1347	{
1134	dec_t dec;	1348	dec_t dec;
1135	UV offset;	1349	UV offset;
1136	SV *sv;	1350	SV *sv;
1137		1351
1138	SvGETMAGIC (string);	1352	SvGETMAGIC (string);
1139	SvUPGRADE (string, SVt_PV);	1353	SvUPGRADE (string, SVt_PV);
1140		1354
1141	if (flags & F_MAXSIZE && SvCUR (string) > DEC_SIZE (flags))	1355	if (json->flags & F_MAXSIZE && SvCUR (string) > DEC_SIZE (json->flags))
1142	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",	1356	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",
1143	(unsigned long)SvCUR (string), (unsigned long)DEC_SIZE (flags));	1357	(unsigned long)SvCUR (string), (unsigned long)DEC_SIZE (json->flags));
1144		1358
1145	if (flags & F_UTF8)	1359	if (json->flags & F_UTF8)
1146	sv_utf8_downgrade (string, 0);	1360	sv_utf8_downgrade (string, 0);
1147	else	1361	else
1148	sv_utf8_upgrade (string);	1362	sv_utf8_upgrade (string);
1149		1363
1150	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP	1364	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP
1151		1365
1152	dec.flags = flags;	1366	dec.json = *json;
1153	dec.cur = SvPVX (string);	1367	dec.cur = SvPVX (string);
1154	dec.end = SvEND (string);	1368	dec.end = SvEND (string);
1155	dec.err = 0;	1369	dec.err = 0;
1156	dec.depth = 0;	1370	dec.depth = 0;
1157	dec.maxdepth = DEC_DEPTH (dec.flags);	1371	dec.maxdepth = DEC_DEPTH (dec.json.flags);
		1372
		1373	if (dec.json.cb_object \|\| dec.json.cb_sk_object)
		1374	dec.json.flags \|= F_HOOK;
1158		1375
1159	*dec.end = 0; // this should basically be a nop, too, but make sure it's there	1376	*dec.end = 0; // this should basically be a nop, too, but make sure it's there
		1377
		1378	decode_ws (&dec);
1160	sv = decode_sv (&dec);	1379	sv = decode_sv (&dec);
1161		1380
1162	if (!(offset_return \|\| !sv))	1381	if (!(offset_return \|\| !sv))
1163	{	1382	{
1164	// check for trailing garbage	1383	// check for trailing garbage
…		…
1172	}	1391	}
1173	}	1392	}
1174		1393
1175	if (offset_return \|\| !sv)	1394	if (offset_return \|\| !sv)
1176	{	1395	{
1177	offset = dec.flags & F_UTF8	1396	offset = dec.json.flags & F_UTF8
1178	? dec.cur - SvPVX (string)	1397	? dec.cur - SvPVX (string)
1179	: utf8_distance (dec.cur, SvPVX (string));	1398	: utf8_distance (dec.cur, SvPVX (string));
1180		1399
1181	if (offset_return)	1400	if (offset_return)
1182	*offset_return = offset;	1401	*offset_return = offset;
…		…
1201	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");	1420	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");
1202	}	1421	}
1203		1422
1204	sv = sv_2mortal (sv);	1423	sv = sv_2mortal (sv);
1205		1424
1206	if (!(dec.flags & F_ALLOW_NONREF) && !SvROK (sv))	1425	if (!(dec.json.flags & F_ALLOW_NONREF) && !SvROK (sv))
1207	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");	1426	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");
1208		1427
1209	return sv;	1428	return sv;
1210	}	1429	}
1211		1430
…		…
1232	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);	1451	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);
1233	}	1452	}
1234		1453
1235	PROTOTYPES: DISABLE	1454	PROTOTYPES: DISABLE
1236		1455
1237	SV new (char dummy)	1456	void CLONE (...)
1238	CODE:	1457	CODE:
1239	RETVAL = sv_bless (newRV_noinc (newSVuv (F_DEFAULT)), json_stash);	1458	json_stash = 0;
1240	OUTPUT:	1459	json_boolean_stash = 0;
1241	RETVAL
1242		1460
		1461	void new (char *klass)
		1462	PPCODE:
		1463	{
		1464	SV *pv = NEWSV (0, sizeof (JSON));
		1465	SvPOK_only (pv);
		1466	Zero (SvPVX (pv), 1, JSON);
		1467	((JSON *)SvPVX (pv))->flags = F_DEFAULT;
		1468	XPUSHs (sv_2mortal (sv_bless (
		1469	newRV_noinc (pv),
		1470	strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1)
		1471	)));
		1472	}
		1473
1243	SV ascii (SV self, int enable = 1)	1474	void ascii (JSON *self, int enable = 1)
1244	ALIAS:	1475	ALIAS:
1245	ascii = F_ASCII	1476	ascii = F_ASCII
1246	latin1 = F_LATIN1	1477	latin1 = F_LATIN1
1247	utf8 = F_UTF8	1478	utf8 = F_UTF8
1248	indent = F_INDENT	1479	indent = F_INDENT
…		…
1252	pretty = F_PRETTY	1483	pretty = F_PRETTY
1253	allow_nonref = F_ALLOW_NONREF	1484	allow_nonref = F_ALLOW_NONREF
1254	shrink = F_SHRINK	1485	shrink = F_SHRINK
1255	allow_blessed = F_ALLOW_BLESSED	1486	allow_blessed = F_ALLOW_BLESSED
1256	convert_blessed = F_CONV_BLESSED	1487	convert_blessed = F_CONV_BLESSED
		1488	relaxed = F_RELAXED
		1489	PPCODE:
		1490	{
		1491	if (enable)
		1492	self->flags \|= ix;
		1493	else
		1494	self->flags &= ~ix;
		1495
		1496	XPUSHs (ST (0));
		1497	}
		1498
		1499	void get_ascii (JSON *self)
		1500	ALIAS:
		1501	get_ascii = F_ASCII
		1502	get_latin1 = F_LATIN1
		1503	get_utf8 = F_UTF8
		1504	get_indent = F_INDENT
		1505	get_canonical = F_CANONICAL
		1506	get_space_before = F_SPACE_BEFORE
		1507	get_space_after = F_SPACE_AFTER
		1508	get_allow_nonref = F_ALLOW_NONREF
		1509	get_shrink = F_SHRINK
		1510	get_allow_blessed = F_ALLOW_BLESSED
		1511	get_convert_blessed = F_CONV_BLESSED
		1512	get_relaxed = F_RELAXED
		1513	PPCODE:
		1514	XPUSHs (boolSV (self->flags & ix));
		1515
		1516	void max_depth (JSON *self, UV max_depth = 0x80000000UL)
		1517	PPCODE:
		1518	{
		1519	UV log2 = 0;
		1520
		1521	if (max_depth > 0x80000000UL) max_depth = 0x80000000UL;
		1522
		1523	while ((1UL << log2) < max_depth)
		1524	++log2;
		1525
		1526	self->flags = self->flags & ~F_MAXDEPTH \| (log2 << S_MAXDEPTH);
		1527
		1528	XPUSHs (ST (0));
		1529	}
		1530
		1531	U32 get_max_depth (JSON *self)
1257	CODE:	1532	CODE:
1258	{	1533	RETVAL = DEC_DEPTH (self->flags);
1259	UV *uv = SvJSON (self);
1260	if (enable)
1261	*uv \|= ix;
1262	else
1263	*uv &= ~ix;
1264
1265	RETVAL = newSVsv (self);
1266	}
1267	OUTPUT:	1534	OUTPUT:
1268	RETVAL	1535	RETVAL
1269		1536
1270	SV max_depth (SV self, UV max_depth = 0x80000000UL)	1537	void max_size (JSON *self, UV max_size = 0)
		1538	PPCODE:
		1539	{
		1540	UV log2 = 0;
		1541
		1542	if (max_size > 0x80000000UL) max_size = 0x80000000UL;
		1543	if (max_size == 1) max_size = 2;
		1544
		1545	while ((1UL << log2) < max_size)
		1546	++log2;
		1547
		1548	self->flags = self->flags & ~F_MAXSIZE \| (log2 << S_MAXSIZE);
		1549
		1550	XPUSHs (ST (0));
		1551	}
		1552
		1553	int get_max_size (JSON *self)
1271	CODE:	1554	CODE:
1272	{	1555	RETVAL = DEC_SIZE (self->flags);
1273	UV *uv = SvJSON (self);
1274	UV log2 = 0;
1275
1276	if (max_depth > 0x80000000UL) max_depth = 0x80000000UL;
1277
1278	while ((1UL << log2) < max_depth)
1279	++log2;
1280
1281	uv = uv & ~F_MAXDEPTH \| (log2 << S_MAXDEPTH);
1282
1283	RETVAL = newSVsv (self);
1284	}
1285	OUTPUT:	1556	OUTPUT:
1286	RETVAL	1557	RETVAL
1287		1558
1288	SV max_size (SV self, UV max_size = 0)	1559	void filter_json_object (JSON self, SV cb = &PL_sv_undef)
1289	CODE:
1290	{
1291	UV *uv = SvJSON (self);
1292	UV log2 = 0;
1293
1294	if (max_size > 0x80000000UL) max_size = 0x80000000UL;
1295	if (max_size == 1) max_size = 2;
1296
1297	while ((1UL << log2) < max_size)
1298	++log2;
1299
1300	uv = uv & ~F_MAXSIZE \| (log2 << S_MAXSIZE);
1301
1302	RETVAL = newSVsv (self);
1303	}
1304	OUTPUT:
1305	RETVAL
1306
1307	void encode (SV self, SV scalar)
1308	PPCODE:	1560	PPCODE:
1309	XPUSHs (encode_json (scalar, *SvJSON (self)));	1561	{
		1562	SvREFCNT_dec (self->cb_object);
		1563	self->cb_object = SvOK (cb) ? newSVsv (cb) : 0;
1310		1564
1311	void decode (SV self, SV jsonstr)	1565	XPUSHs (ST (0));
		1566	}
		1567
		1568	void filter_json_single_key_object (JSON self, SV key, SV *cb = &PL_sv_undef)
1312	PPCODE:	1569	PPCODE:
		1570	{
		1571	if (!self->cb_sk_object)
		1572	self->cb_sk_object = newHV ();
		1573
		1574	if (SvOK (cb))
		1575	hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0);
		1576	else
		1577	{
		1578	hv_delete_ent (self->cb_sk_object, key, G_DISCARD, 0);
		1579
		1580	if (!HvKEYS (self->cb_sk_object))
		1581	{
		1582	SvREFCNT_dec (self->cb_sk_object);
		1583	self->cb_sk_object = 0;
		1584	}
		1585	}
		1586
		1587	XPUSHs (ST (0));
		1588	}
		1589
		1590	void encode (JSON self, SV scalar)
		1591	PPCODE:
		1592	XPUSHs (encode_json (scalar, self));
		1593
		1594	void decode (JSON self, SV jsonstr)
		1595	PPCODE:
1313	XPUSHs (decode_json (jsonstr, *SvJSON (self), 0));	1596	XPUSHs (decode_json (jsonstr, self, 0));
1314		1597
1315	void decode_prefix (SV self, SV jsonstr)	1598	void decode_prefix (JSON self, SV jsonstr)
1316	PPCODE:	1599	PPCODE:
1317	{	1600	{
1318	UV offset;	1601	UV offset;
1319	EXTEND (SP, 2);	1602	EXTEND (SP, 2);
1320	PUSHs (decode_json (jsonstr, *SvJSON (self), &offset));	1603	PUSHs (decode_json (jsonstr, self, &offset));
1321	PUSHs (sv_2mortal (newSVuv (offset)));	1604	PUSHs (sv_2mortal (newSVuv (offset)));
1322	}	1605	}
1323		1606
		1607	void DESTROY (JSON *self)
		1608	CODE:
		1609	SvREFCNT_dec (self->cb_sk_object);
		1610	SvREFCNT_dec (self->cb_object);
		1611
1324	PROTOTYPES: ENABLE	1612	PROTOTYPES: ENABLE
1325		1613
1326	void to_json (SV *scalar)	1614	void encode_json (SV *scalar)
1327	ALIAS:
1328	objToJson = 0
1329	PPCODE:	1615	PPCODE:
		1616	{
		1617	JSON json = { F_DEFAULT \| F_UTF8 };
1330	XPUSHs (encode_json (scalar, F_DEFAULT \| F_UTF8));	1618	XPUSHs (encode_json (scalar, &json));
		1619	}
1331		1620
1332	void from_json (SV *jsonstr)	1621	void decode_json (SV *jsonstr)
1333	ALIAS:
1334	jsonToObj = 0
1335	PPCODE:	1622	PPCODE:
		1623	{
		1624	JSON json = { F_DEFAULT \| F_UTF8 };
1336	XPUSHs (decode_json (jsonstr, F_DEFAULT \| F_UTF8, 0));	1625	XPUSHs (decode_json (jsonstr, &json, 0));
		1626	}
1337		1627

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+Removed lines
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Comparing JSON-XS/XS.xs (file contents): Revision 1.45 by root, Mon Jun 25 06:57:42 2007 UTC vs. Revision 1.71 by root, Wed Mar 19 03:17:38 2008 UTC

Diff Legend

Comparing JSON-XS/XS.xs (file contents):
Revision 1.45 by root, Mon Jun 25 06:57:42 2007 UTC vs.
Revision 1.71 by root, Wed Mar 19 03:17:38 2008 UTC