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

Comparing JSON-XS/XS.xs (file contents):
Revision 1.40 by root, Tue Jun 12 01:27:02 2007 UTC vs.
Revision 1.71 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
		15	// some old perls do not have this, try to make it work, no
		16	// guarentees, though. if it breaks, you get to keep the pieces.
		17	#ifndef UTF8_MAXBYTES
		18	# define UTF8_MAXBYTES 13
		19	#endif
		20
14	#define F_ASCII 0x00000001UL	21	#define F_ASCII 0x00000001UL
15	#define F_LATIN1 0x00000002UL	22	#define F_LATIN1 0x00000002UL
16	#define F_UTF8 0x00000004UL	23	#define F_UTF8 0x00000004UL
17	#define F_INDENT 0x00000008UL	24	#define F_INDENT 0x00000008UL
18	#define F_CANONICAL 0x00000010UL	25	#define F_CANONICAL 0x00000010UL
19	#define F_SPACE_BEFORE 0x00000020UL	26	#define F_SPACE_BEFORE 0x00000020UL
20	#define F_SPACE_AFTER 0x00000040UL	27	#define F_SPACE_AFTER 0x00000040UL
21	#define F_ALLOW_NONREF 0x00000100UL	28	#define F_ALLOW_NONREF 0x00000100UL
22	#define F_SHRINK 0x00000200UL	29	#define F_SHRINK 0x00000200UL
		30	#define F_ALLOW_BLESSED 0x00000400UL
		31	#define F_CONV_BLESSED 0x00000800UL
		32	#define F_RELAXED 0x00001000UL
		33
23	#define F_MAXDEPTH 0xf8000000UL	34	#define F_MAXDEPTH 0xf8000000UL
24	#define S_MAXDEPTH 27	35	#define S_MAXDEPTH 27
		36	#define F_MAXSIZE 0x01f00000UL
		37	#define S_MAXSIZE 20
		38	#define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing
25		39
26	#define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH))	40	#define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH))
27		41	#define DEC_SIZE(flags) (1UL << ((flags & F_MAXSIZE ) >> S_MAXSIZE ))
28	// F_SELFCONVERT? <=> to_json/toJson
29	// F_BLESSED? <=> { $__class__$ => }
30		42
31	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER	43	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER
32	#define F_DEFAULT (9UL << S_MAXDEPTH)	44	#define F_DEFAULT (9UL << S_MAXDEPTH)
33		45
34	#define INIT_SIZE 32 // initial scalar size to be allocated	46	#define INIT_SIZE 32 // initial scalar size to be allocated
38		50
39	#define SB do {	51	#define SB do {
40	#define SE } while (0)	52	#define SE } while (0)
41		53
42	#if __GNUC__ >= 3	54	#if __GNUC__ >= 3
43	# define expect(expr,value) __builtin_expect ((expr),(value))	55	# define expect(expr,value) __builtin_expect ((expr), (value))
44	# define inline inline	56	# define INLINE static inline
45	#else	57	#else
46	# define expect(expr,value) (expr)	58	# define expect(expr,value) (expr)
47	# define inline static	59	# define INLINE static
48	#endif	60	#endif
49		61
50	#define expect_false(expr) expect ((expr) != 0, 0)	62	#define expect_false(expr) expect ((expr) != 0, 0)
51	#define expect_true(expr) expect ((expr) != 0, 1)	63	#define expect_true(expr) expect ((expr) != 0, 1)
52		64
		65	#ifdef USE_ITHREADS
		66	# define JSON_SLOW 1
		67	# define JSON_STASH (json_stash ? json_stash : gv_stashpv ("JSON::XS", 1))
		68	#else
		69	# define JSON_SLOW 0
		70	# define JSON_STASH json_stash
		71	#endif
		72
53	static HV *json_stash; // JSON::XS::	73	static HV json_stash, json_boolean_stash; // JSON::XS::
		74	static SV json_true, json_false;
		75
		76	typedef struct {
		77	U32 flags;
		78	SV *cb_object;
		79	HV *cb_sk_object;
		80	} JSON;
54		81
55	/////////////////////////////////////////////////////////////////////////////	82	/////////////////////////////////////////////////////////////////////////////
56	// utility functions	83	// utility functions
57		84
58	static UV *	85	INLINE void
59	SvJSON (SV *sv)
60	{
61	if (!(SvROK (sv) && SvOBJECT (SvRV (sv)) && SvSTASH (SvRV (sv)) == json_stash))
62	croak ("object is not of type JSON::XS");
63
64	return &SvUVX (SvRV (sv));
65	}
66
67	static void
68	shrink (SV *sv)	86	shrink (SV *sv)
69	{	87	{
70	sv_utf8_downgrade (sv, 1);	88	sv_utf8_downgrade (sv, 1);
71	if (SvLEN (sv) > SvCUR (sv) + 1)	89	if (SvLEN (sv) > SvCUR (sv) + 1)
72	{	90	{
…		…
81	// 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
82	// case of an error.	100	// case of an error.
83	// we special-case "safe" characters from U+80 .. U+7FF,	101	// we special-case "safe" characters from U+80 .. U+7FF,
84	// but use the very good perl function to parse anything else.	102	// but use the very good perl function to parse anything else.
85	// note that we never call this function for a ascii codepoints	103	// note that we never call this function for a ascii codepoints
86	inline UV	104	INLINE UV
87	decode_utf8 (unsigned char s, STRLEN len, STRLEN clen)	105	decode_utf8 (unsigned char s, STRLEN len, STRLEN clen)
88	{	106	{
89	if (expect_false (s[0] > 0xdf \|\| s[0] < 0xc2))	107	if (expect_false (s[0] > 0xdf \|\| s[0] < 0xc2))
90	return utf8n_to_uvuni (s, len, clen, UTF8_CHECK_ONLY);	108	return utf8n_to_uvuni (s, len, clen, UTF8_CHECK_ONLY);
91	else if (len > 1 && s[1] >= 0x80 && s[1] <= 0xbf)	109	else if (len > 1 && s[1] >= 0x80 && s[1] <= 0xbf)
…		…
107	typedef struct	125	typedef struct
108	{	126	{
109	char *cur; // SvPVX (sv) + current output position	127	char *cur; // SvPVX (sv) + current output position
110	char *end; // SvEND (sv)	128	char *end; // SvEND (sv)
111	SV *sv; // result scalar	129	SV *sv; // result scalar
112	U32 flags; // F_*	130	JSON json;
113	U32 indent; // indentation level	131	U32 indent; // indentation level
114	U32 maxdepth; // max. indentation/recursion level	132	U32 maxdepth; // max. indentation/recursion level
		133	UV limit; // escape character values >= this value when encoding
115	} enc_t;	134	} enc_t;
116		135
117	inline void	136	INLINE void
118	need (enc_t *enc, STRLEN len)	137	need (enc_t *enc, STRLEN len)
119	{	138	{
120	if (expect_false (enc->cur + len >= enc->end))	139	if (expect_false (enc->cur + len >= enc->end))
121	{	140	{
122	STRLEN cur = enc->cur - SvPVX (enc->sv);	141	STRLEN cur = enc->cur - SvPVX (enc->sv);
…		…
124	enc->cur = SvPVX (enc->sv) + cur;	143	enc->cur = SvPVX (enc->sv) + cur;
125	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;	144	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;
126	}	145	}
127	}	146	}
128		147
129	inline void	148	INLINE void
130	encode_ch (enc_t *enc, char ch)	149	encode_ch (enc_t *enc, char ch)
131	{	150	{
132	need (enc, 1);	151	need (enc, 1);
133	*enc->cur++ = ch;	152	*enc->cur++ = ch;
134	}	153	}
…		…
188	{	207	{
189	uch = ch;	208	uch = ch;
190	clen = 1;	209	clen = 1;
191	}	210	}
192		211
193	if (uch > 0x10FFFFUL)	212	if (uch < 0x20 \|\| uch >= enc->limit)
194	croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);
195
196	if (uch < 0x80 \|\| enc->flags & F_ASCII \|\| (enc->flags & F_LATIN1 && uch > 0xFF))
197	{	213	{
198	if (uch > 0xFFFFUL)	214	if (uch > 0xFFFFUL)
199	{	215	{
		216	if (uch > 0x10FFFFUL)
		217	croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);
		218
200	need (enc, len += 11);	219	need (enc, len += 11);
201	sprintf (enc->cur, "\\u%04x\\u%04x",	220	sprintf (enc->cur, "\\u%04x\\u%04x",
202	(int)((uch - 0x10000) / 0x400 + 0xD800),	221	(int)((uch - 0x10000) / 0x400 + 0xD800),
203	(int)((uch - 0x10000) % 0x400 + 0xDC00));	222	(int)((uch - 0x10000) % 0x400 + 0xDC00));
204	enc->cur += 12;	223	enc->cur += 12;
…		…
215	*enc->cur++ = hexdigit [(uch >> 0) & 15];	234	*enc->cur++ = hexdigit [(uch >> 0) & 15];
216	}	235	}
217		236
218	str += clen;	237	str += clen;
219	}	238	}
220	else if (enc->flags & F_LATIN1)	239	else if (enc->json.flags & F_LATIN1)
221	{	240	{
222	*enc->cur++ = uch;	241	*enc->cur++ = uch;
223	str += clen;	242	str += clen;
224	}	243	}
225	else if (is_utf8)	244	else if (is_utf8)
…		…
243		262
244	--len;	263	--len;
245	}	264	}
246	}	265	}
247		266
248	inline void	267	INLINE void
249	encode_indent (enc_t *enc)	268	encode_indent (enc_t *enc)
250	{	269	{
251	if (enc->flags & F_INDENT)	270	if (enc->json.flags & F_INDENT)
252	{	271	{
253	int spaces = enc->indent * INDENT_STEP;	272	int spaces = enc->indent * INDENT_STEP;
254		273
255	need (enc, spaces);	274	need (enc, spaces);
256	memset (enc->cur, ' ', spaces);	275	memset (enc->cur, ' ', spaces);
257	enc->cur += spaces;	276	enc->cur += spaces;
258	}	277	}
259	}	278	}
260		279
261	inline void	280	INLINE void
262	encode_space (enc_t *enc)	281	encode_space (enc_t *enc)
263	{	282	{
264	need (enc, 1);	283	need (enc, 1);
265	encode_ch (enc, ' ');	284	encode_ch (enc, ' ');
266	}	285	}
267		286
268	inline void	287	INLINE void
269	encode_nl (enc_t *enc)	288	encode_nl (enc_t *enc)
270	{	289	{
271	if (enc->flags & F_INDENT)	290	if (enc->json.flags & F_INDENT)
272	{	291	{
273	need (enc, 1);	292	need (enc, 1);
274	encode_ch (enc, '\n');	293	encode_ch (enc, '\n');
275	}	294	}
276	}	295	}
277		296
278	inline void	297	INLINE void
279	encode_comma (enc_t *enc)	298	encode_comma (enc_t *enc)
280	{	299	{
281	encode_ch (enc, ',');	300	encode_ch (enc, ',');
282		301
283	if (enc->flags & F_INDENT)	302	if (enc->json.flags & F_INDENT)
284	encode_nl (enc);	303	encode_nl (enc);
285	else if (enc->flags & F_SPACE_AFTER)	304	else if (enc->json.flags & F_SPACE_AFTER)
286	encode_space (enc);	305	encode_space (enc);
287	}	306	}
288		307
289	static void encode_sv (enc_t enc, SV sv);	308	static void encode_sv (enc_t enc, SV sv);
290		309
…		…
294	int i, len = av_len (av);	313	int i, len = av_len (av);
295		314
296	if (enc->indent >= enc->maxdepth)	315	if (enc->indent >= enc->maxdepth)
297	croak ("data structure too deep (hit recursion limit)");	316	croak ("data structure too deep (hit recursion limit)");
298		317
299	encode_ch (enc, '['); encode_nl (enc);	318	encode_ch (enc, '[');
300	++enc->indent;	319
		320	if (len >= 0)
		321	{
		322	encode_nl (enc); ++enc->indent;
301		323
302	for (i = 0; i <= len; ++i)	324	for (i = 0; i <= len; ++i)
303	{	325	{
		326	SV **svp = av_fetch (av, i, 0);
		327
304	encode_indent (enc);	328	encode_indent (enc);
305	encode_sv (enc, *av_fetch (av, i, 0));
306		329
		330	if (svp)
		331	encode_sv (enc, *svp);
		332	else
		333	encode_str (enc, "null", 4, 0);
		334
307	if (i < len)	335	if (i < len)
308	encode_comma (enc);	336	encode_comma (enc);
309	}	337	}
310		338
		339	encode_nl (enc); --enc->indent; encode_indent (enc);
		340	}
		341
311	encode_nl (enc);	342	encode_ch (enc, ']');
312
313	--enc->indent;
314	encode_indent (enc); encode_ch (enc, ']');
315	}	343	}
316		344
317	static void	345	static void
318	encode_he (enc_t enc, HE he)	346	encode_hk (enc_t enc, HE he)
319	{	347	{
320	encode_ch (enc, '"');	348	encode_ch (enc, '"');
321		349
322	if (HeKLEN (he) == HEf_SVKEY)	350	if (HeKLEN (he) == HEf_SVKEY)
323	{	351	{
…		…
333	else	361	else
334	encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he));	362	encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he));
335		363
336	encode_ch (enc, '"');	364	encode_ch (enc, '"');
337		365
338	if (enc->flags & F_SPACE_BEFORE) encode_space (enc);	366	if (enc->json.flags & F_SPACE_BEFORE) encode_space (enc);
339	encode_ch (enc, ':');	367	encode_ch (enc, ':');
340	if (enc->flags & F_SPACE_AFTER ) encode_space (enc);	368	if (enc->json.flags & F_SPACE_AFTER ) encode_space (enc);
341	encode_sv (enc, HeVAL (he));
342	}	369	}
343		370
344	// compare hash entries, used when all keys are bytestrings	371	// compare hash entries, used when all keys are bytestrings
345	static int	372	static int
346	he_cmp_fast (const void a_, const void b_)	373	he_cmp_fast (const void a_, const void b_)
…		…
351	HE b = (HE **)b_;	378	HE b = (HE **)b_;
352		379
353	STRLEN la = HeKLEN (a);	380	STRLEN la = HeKLEN (a);
354	STRLEN lb = HeKLEN (b);	381	STRLEN lb = HeKLEN (b);
355		382
356	if (!(cmp = memcmp (HeKEY (a), HeKEY (b), la < lb ? la : lb)))	383	if (!(cmp = memcmp (HeKEY (b), HeKEY (a), lb < la ? lb : la)))
357	cmp = la - lb;	384	cmp = lb - la;
358		385
359	return cmp;	386	return cmp;
360	}	387	}
361		388
362	// 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
363	static int	390	static int
364	he_cmp_slow (const void a, const void b)	391	he_cmp_slow (const void a, const void b)
365	{	392	{
366	return sv_cmp (HeSVKEY_force ((HE )a), HeSVKEY_force ((HE **)b));	393	return sv_cmp (HeSVKEY_force ((HE )b), HeSVKEY_force ((HE **)a));
367	}	394	}
368		395
369	static void	396	static void
370	encode_hv (enc_t enc, HV hv)	397	encode_hv (enc_t enc, HV hv)
371	{	398	{
		399	HE *he;
372	int count, i;	400	int count;
373		401
374	if (enc->indent >= enc->maxdepth)	402	if (enc->indent >= enc->maxdepth)
375	croak ("data structure too deep (hit recursion limit)");	403	croak ("data structure too deep (hit recursion limit)");
376		404
377	encode_ch (enc, '{'); encode_nl (enc); ++enc->indent;	405	encode_ch (enc, '{');
378		406
379	if ((count = hv_iterinit (hv)))
380	{
381	// for canonical output we have to sort by keys first	407	// for canonical output we have to sort by keys first
382	// actually, this is mostly due to the stupid so-called	408	// actually, this is mostly due to the stupid so-called
383	// security workaround added somewhere in 5.8.x.	409	// security workaround added somewhere in 5.8.x.
384	// that randomises hash orderings	410	// that randomises hash orderings
385	if (enc->flags & F_CANONICAL)	411	if (enc->json.flags & F_CANONICAL)
		412	{
		413	int count = hv_iterinit (hv);
		414
		415	if (SvMAGICAL (hv))
386	{	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	{
387	int fast = 1;	431	int i, fast = 1;
388	HE *he;
389	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	432	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)
390	HE *hes = _alloca (count sizeof (HE));	433	HE *hes = _alloca (count sizeof (HE));
391	#else	434	#else
392	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
393	#endif	436	#endif
…		…
420		463
421	FREETMPS;	464	FREETMPS;
422	LEAVE;	465	LEAVE;
423	}	466	}
424		467
425	for (i = 0; i < count; ++i)	468	encode_nl (enc); ++enc->indent;
		469
		470	while (count--)
426	{	471	{
427	encode_indent (enc);	472	encode_indent (enc);
		473	he = hes [count];
428	encode_he (enc, hes [i]);	474	encode_hk (enc, he);
		475	encode_sv (enc, expect_false (SvMAGICAL (hv)) ? hv_iterval (hv, he) : HeVAL (he));
429		476
430	if (i < count - 1)	477	if (count)
431	encode_comma (enc);	478	encode_comma (enc);
432	}	479	}
433		480
		481	encode_nl (enc); --enc->indent; encode_indent (enc);
		482	}
		483	}
		484	else
		485	{
		486	if (hv_iterinit (hv) \|\| SvMAGICAL (hv))
		487	if ((he = hv_iternext (hv)))
		488	{
		489	encode_nl (enc); ++enc->indent;
		490
		491	for (;;)
		492	{
434	encode_nl (enc);	493	encode_indent (enc);
		494	encode_hk (enc, he);
		495	encode_sv (enc, expect_false (SvMAGICAL (hv)) ? hv_iterval (hv, he) : HeVAL (he));
		496
		497	if (!(he = hv_iternext (hv)))
		498	break;
		499
		500	encode_comma (enc);
		501	}
		502
		503	encode_nl (enc); --enc->indent; encode_indent (enc);
		504	}
		505	}
		506
		507	encode_ch (enc, '}');
		508	}
		509
		510	// encode objects, arrays and special \0=false and \1=true values.
		511	static void
		512	encode_rv (enc_t enc, SV sv)
		513	{
		514	svtype svt;
		515
		516	SvGETMAGIC (sv);
		517	svt = SvTYPE (sv);
		518
		519	if (expect_false (SvOBJECT (sv)))
		520	{
		521	HV *stash = !JSON_SLOW \|\| json_boolean_stash
		522	? json_boolean_stash
		523	: gv_stashpv ("JSON::XS::Boolean", 1);
		524
		525	if (SvSTASH (sv) == stash)
		526	{
		527	if (SvIV (sv))
		528	encode_str (enc, "true", 4, 0);
		529	else
		530	encode_str (enc, "false", 5, 0);
435	}	531	}
436	else	532	else
437	{	533	{
438	HE *he = hv_iternext (hv);	534	#if 0
439		535	if (0 && sv_derived_from (rv, "JSON::Literal"))
440	for (;;)
441	{	536	{
442	encode_indent (enc);	537	// not yet
443	encode_he (enc, he);
444
445	if (!(he = hv_iternext (hv)))
446	break;
447
448	encode_comma (enc);
449	}	538	}
		539	#endif
		540	if (enc->json.flags & F_CONV_BLESSED)
		541	{
		542	// we re-bless the reference to get overload and other niceties right
		543	GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 0);
450		544
		545	if (to_json)
		546	{
		547	dSP;
		548
		549	ENTER; SAVETMPS; PUSHMARK (SP);
		550	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv)));
		551
		552	// calling with G_SCALAR ensures that we always get a 1 return value
		553	PUTBACK;
		554	call_sv ((SV *)GvCV (to_json), G_SCALAR);
		555	SPAGAIN;
		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
451	encode_nl (enc);	564	encode_sv (enc, sv);
		565
		566	FREETMPS; LEAVE;
		567	}
		568	else if (enc->json.flags & F_ALLOW_BLESSED)
		569	encode_str (enc, "null", 4, 0);
		570	else
		571	croak ("encountered object '%s', but neither allow_blessed enabled nor TO_JSON method available on it",
		572	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
		573	}
		574	else if (enc->json.flags & F_ALLOW_BLESSED)
		575	encode_str (enc, "null", 4, 0);
		576	else
		577	croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled",
		578	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
452	}	579	}
453	}	580	}
454
455	--enc->indent; encode_indent (enc); encode_ch (enc, '}');
456	}
457
458	// encode objects, arrays and special \0=false and \1=true values.
459	static void
460	encode_rv (enc_t enc, SV sv)
461	{
462	svtype svt;
463
464	SvGETMAGIC (sv);
465	svt = SvTYPE (sv);
466
467	if (svt == SVt_PVHV)	581	else if (svt == SVt_PVHV)
468	encode_hv (enc, (HV *)sv);	582	encode_hv (enc, (HV *)sv);
469	else if (svt == SVt_PVAV)	583	else if (svt == SVt_PVAV)
470	encode_av (enc, (AV *)sv);	584	encode_av (enc, (AV *)sv);
471	else if (svt < SVt_PVAV)	585	else if (svt < SVt_PVAV)
472	{	586	{
473	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')
474	encode_str (enc, "false", 5, 0);	593	encode_str (enc, "false", 5, 0);
475	else if (SvNIOK (sv) && SvIV (sv) == 1)
476	encode_str (enc, "true", 4, 0);
477	else	594	else
478	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",
479	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	596	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
480	}	597	}
481	else	598	else
…		…
551	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",
552	SvPV_nolen (sv), SvFLAGS (sv));	669	SvPV_nolen (sv), SvFLAGS (sv));
553	}	670	}
554		671
555	static SV *	672	static SV *
556	encode_json (SV *scalar, U32 flags)	673	encode_json (SV scalar, JSON json)
557	{	674	{
558	enc_t enc;	675	enc_t enc;
559		676
560	if (!(flags & F_ALLOW_NONREF) && !SvROK (scalar))	677	if (!(json->flags & F_ALLOW_NONREF) && !SvROK (scalar))
561	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)");
562		679
563	enc.flags = flags;	680	enc.json = *json;
564	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	681	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
565	enc.cur = SvPVX (enc.sv);	682	enc.cur = SvPVX (enc.sv);
566	enc.end = SvEND (enc.sv);	683	enc.end = SvEND (enc.sv);
567	enc.indent = 0;	684	enc.indent = 0;
568	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;
569		689
570	SvPOK_only (enc.sv);	690	SvPOK_only (enc.sv);
571	encode_sv (&enc, scalar);	691	encode_sv (&enc, scalar);
572		692
573	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));	693	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));
574	*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
575		695
576	if (!(flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))	696	if (!(enc.json.flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))
577	SvUTF8_on (enc.sv);	697	SvUTF8_on (enc.sv);
578		698
579	if (enc.flags & F_SHRINK)	699	if (enc.json.flags & F_SHRINK)
580	shrink (enc.sv);	700	shrink (enc.sv);
581		701
582	return enc.sv;	702	return enc.sv;
583	}	703	}
584		704
…		…
589	typedef struct	709	typedef struct
590	{	710	{
591	char *cur; // current parser pointer	711	char *cur; // current parser pointer
592	char *end; // end of input string	712	char *end; // end of input string
593	const char *err; // parse error, if != 0	713	const char *err; // parse error, if != 0
594	U32 flags; // F_*	714	JSON json;
595	U32 depth; // recursion depth	715	U32 depth; // recursion depth
596	U32 maxdepth; // recursion depth limit	716	U32 maxdepth; // recursion depth limit
597	} dec_t;	717	} dec_t;
598		718
599	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
600	decode_ws (dec_t *dec)	729	decode_ws (dec_t *dec)
601	{	730	{
602	for (;;)	731	for (;;)
603	{	732	{
604	char ch = *dec->cur;	733	char ch = *dec->cur;
605		734
606	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	}
607	\|\| (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09))	747	else if (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09)
608	break;	748	break; // parse error, but let higher level handle it, gives better error messages
609		749
610	++dec->cur;	750	++dec->cur;
611	}	751	}
612	}	752	}
613		753
…		…
862	is_nv = 1;	1002	is_nv = 1;
863	}	1003	}
864		1004
865	if (!is_nv)	1005	if (!is_nv)
866	{	1006	{
		1007	int len = dec->cur - start;
		1008
867	// 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
868	if (*start == '-')	1010	if (*start == '-')
869	switch (dec->cur - start)	1011	switch (len)
870	{	1012	{
871	case 2: return newSViv (-( start [1] - '0' * 1));	1013	case 2: return newSViv (-( start [1] - '0' * 1));
872	case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11));	1014	case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11));
873	case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111));	1015	case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111));
874	case 5: return newSViv (-(start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111));	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));
875	}	1018	}
876	else	1019	else
877	switch (dec->cur - start)	1020	switch (len)
878	{	1021	{
879	case 1: return newSViv ( start [0] - '0' * 1);	1022	case 1: return newSViv ( start [0] - '0' * 1);
880	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);	1023	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);
881	case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111);	1024	case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111);
882	case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111);	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);
883	}	1027	}
884		1028
885	{	1029	{
886	UV uv;	1030	UV uv;
887	int numtype = grok_number (start, dec->cur - start, &uv);	1031	int numtype = grok_number (start, len, &uv);
888	if (numtype & IS_NUMBER_IN_UV)	1032	if (numtype & IS_NUMBER_IN_UV)
889	if (numtype & IS_NUMBER_NEG)	1033	if (numtype & IS_NUMBER_NEG)
890	{	1034	{
891	if (uv < (UV)IV_MIN)	1035	if (uv < (UV)IV_MIN)
892	return newSViv (-(IV)uv);	1036	return newSViv (-(IV)uv);
893	}	1037	}
894	else	1038	else
895	return newSVuv (uv);	1039	return newSVuv (uv);
896
897	// here would likely be the place for bigint support
898	}	1040	}
899	}
900		1041
901	// 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
902	return newSVnv (Atof (start));	1058	return newSVnv (Atof (start));
903		1059
904	fail:	1060	fail:
905	return 0;	1061	return 0;
906	}	1062	}
…		…
936		1092
937	if (*dec->cur != ',')	1093	if (*dec->cur != ',')
938	ERR (", or ] expected while parsing array");	1094	ERR (", or ] expected while parsing array");
939		1095
940	++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	}
941	}	1105	}
942		1106
943	DEC_DEC_DEPTH;	1107	DEC_DEC_DEPTH;
944	return newRV_noinc ((SV *)av);	1108	return newRV_noinc ((SV *)av);
945		1109
…		…
950	}	1114	}
951		1115
952	static SV *	1116	static SV *
953	decode_hv (dec_t *dec)	1117	decode_hv (dec_t *dec)
954	{	1118	{
		1119	SV *sv;
955	HV *hv = newHV ();	1120	HV *hv = newHV ();
956		1121
957	DEC_INC_DEPTH;	1122	DEC_INC_DEPTH;
958	decode_ws (dec);	1123	decode_ws (dec);
959		1124
960	if (*dec->cur == '}')	1125	if (*dec->cur == '}')
961	++dec->cur;	1126	++dec->cur;
962	else	1127	else
963	for (;;)	1128	for (;;)
964	{	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	{
965	SV key, value;	1138	SV *value;
		1139	char *p = dec->cur;
		1140	char *e = p + 24; // only try up to 24 bytes
966		1141
967	decode_ws (dec); EXPECT_CH ('"');	1142	for (;;)
968
969	key = decode_str (dec);
970	if (!key)
971	goto fail;
972
973	decode_ws (dec); EXPECT_CH (':');
974
975	value = decode_sv (dec);
976	if (!value)
977	{	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);
978	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)
979	goto fail;	1179	goto fail;
		1180
		1181	hv_store (hv, key, len, value, 0);
		1182
		1183	break;
		1184	}
		1185
		1186	++p;
980	}	1187	}
981		1188	}
982	hv_store_ent (hv, key, value, 0);
983	SvREFCNT_dec (key);
984		1189
985	decode_ws (dec);	1190	decode_ws (dec);
986		1191
987	if (*dec->cur == '}')	1192	if (*dec->cur == '}')
988	{	1193	{
…		…
992		1197
993	if (*dec->cur != ',')	1198	if (*dec->cur != ',')
994	ERR (", or } expected while parsing object/hash");	1199	ERR (", or } expected while parsing object/hash");
995		1200
996	++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	}
997	}	1210	}
998		1211
999	DEC_DEC_DEPTH;	1212	DEC_DEC_DEPTH;
1000	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;
1001		1274
1002	fail:	1275	fail:
1003	SvREFCNT_dec (hv);	1276	SvREFCNT_dec (hv);
1004	DEC_DEC_DEPTH;	1277	DEC_DEC_DEPTH;
1005	return 0;	1278	return 0;
1006	}	1279	}
1007		1280
1008	static SV *	1281	static SV *
1009	decode_sv (dec_t *dec)	1282	decode_sv (dec_t *dec)
1010	{	1283	{
1011	decode_ws (dec);
1012
1013	// the beauty of JSON: you need exactly one character lookahead	1284	// the beauty of JSON: you need exactly one character lookahead
1014	// to parse anything.	1285	// to parse anything.
1015	switch (*dec->cur)	1286	switch (*dec->cur)
1016	{	1287	{
1017	case '"': ++dec->cur; return decode_str (dec);	1288	case '"': ++dec->cur; return decode_str (dec);
…		…
1025		1296
1026	case 't':	1297	case 't':
1027	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))	1298	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))
1028	{	1299	{
1029	dec->cur += 4;	1300	dec->cur += 4;
1030	return newSViv (1);	1301	#if JSON_SLOW
		1302	json_true = get_sv ("JSON::XS::true", 1); SvREADONLY_on (json_true);
		1303	#endif
		1304	return SvREFCNT_inc (json_true);
1031	}	1305	}
1032	else	1306	else
1033	ERR ("'true' expected");	1307	ERR ("'true' expected");
1034		1308
1035	break;	1309	break;
1036		1310
1037	case 'f':	1311	case 'f':
1038	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))	1312	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))
1039	{	1313	{
1040	dec->cur += 5;	1314	dec->cur += 5;
1041	return newSViv (0);	1315	#if JSON_SLOW
		1316	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);
		1317	#endif
		1318	return SvREFCNT_inc (json_false);
1042	}	1319	}
1043	else	1320	else
1044	ERR ("'false' expected");	1321	ERR ("'false' expected");
1045		1322
1046	break;	1323	break;
…		…
1064	fail:	1341	fail:
1065	return 0;	1342	return 0;
1066	}	1343	}
1067		1344
1068	static SV *	1345	static SV *
1069	decode_json (SV string, U32 flags, UV offset_return)	1346	decode_json (SV string, JSON json, UV *offset_return)
1070	{	1347	{
1071	dec_t dec;	1348	dec_t dec;
1072	UV offset;	1349	UV offset;
1073	SV *sv;	1350	SV *sv;
1074		1351
1075	SvGETMAGIC (string);	1352	SvGETMAGIC (string);
1076	SvUPGRADE (string, SVt_PV);	1353	SvUPGRADE (string, SVt_PV);
1077		1354
		1355	if (json->flags & F_MAXSIZE && SvCUR (string) > DEC_SIZE (json->flags))
		1356	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",
		1357	(unsigned long)SvCUR (string), (unsigned long)DEC_SIZE (json->flags));
		1358
1078	if (flags & F_UTF8)	1359	if (json->flags & F_UTF8)
1079	sv_utf8_downgrade (string, 0);	1360	sv_utf8_downgrade (string, 0);
1080	else	1361	else
1081	sv_utf8_upgrade (string);	1362	sv_utf8_upgrade (string);
1082		1363
1083	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP	1364	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP
1084		1365
1085	dec.flags = flags;	1366	dec.json = *json;
1086	dec.cur = SvPVX (string);	1367	dec.cur = SvPVX (string);
1087	dec.end = SvEND (string);	1368	dec.end = SvEND (string);
1088	dec.err = 0;	1369	dec.err = 0;
1089	dec.depth = 0;	1370	dec.depth = 0;
1090	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;
1091		1375
1092	*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);
1093	sv = decode_sv (&dec);	1379	sv = decode_sv (&dec);
1094		1380
1095	if (!(offset_return \|\| !sv))	1381	if (!(offset_return \|\| !sv))
1096	{	1382	{
1097	// check for trailing garbage	1383	// check for trailing garbage
…		…
1105	}	1391	}
1106	}	1392	}
1107		1393
1108	if (offset_return \|\| !sv)	1394	if (offset_return \|\| !sv)
1109	{	1395	{
1110	offset = dec.flags & F_UTF8	1396	offset = dec.json.flags & F_UTF8
1111	? dec.cur - SvPVX (string)	1397	? dec.cur - SvPVX (string)
1112	: utf8_distance (dec.cur, SvPVX (string));	1398	: utf8_distance (dec.cur, SvPVX (string));
1113		1399
1114	if (offset_return)	1400	if (offset_return)
1115	*offset_return = offset;	1401	*offset_return = offset;
…		…
1134	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");	1420	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");
1135	}	1421	}
1136		1422
1137	sv = sv_2mortal (sv);	1423	sv = sv_2mortal (sv);
1138		1424
1139	if (!(dec.flags & F_ALLOW_NONREF) && !SvROK (sv))	1425	if (!(dec.json.flags & F_ALLOW_NONREF) && !SvROK (sv))
1140	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");	1426	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");
1141		1427
1142	return sv;	1428	return sv;
1143	}	1429	}
1144		1430
…		…
1156	i >= '0' && i <= '9' ? i - '0'	1442	i >= '0' && i <= '9' ? i - '0'
1157	: i >= 'a' && i <= 'f' ? i - 'a' + 10	1443	: i >= 'a' && i <= 'f' ? i - 'a' + 10
1158	: i >= 'A' && i <= 'F' ? i - 'A' + 10	1444	: i >= 'A' && i <= 'F' ? i - 'A' + 10
1159	: -1;	1445	: -1;
1160		1446
1161	json_stash = gv_stashpv ("JSON::XS", 1);	1447	json_stash = gv_stashpv ("JSON::XS" , 1);
		1448	json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1);
		1449
		1450	json_true = get_sv ("JSON::XS::true" , 1); SvREADONLY_on (json_true );
		1451	json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false);
1162	}	1452	}
1163		1453
1164	PROTOTYPES: DISABLE	1454	PROTOTYPES: DISABLE
1165		1455
1166	SV new (char dummy)	1456	void CLONE (...)
1167	CODE:	1457	CODE:
1168	RETVAL = sv_bless (newRV_noinc (newSVuv (F_DEFAULT)), json_stash);	1458	json_stash = 0;
		1459	json_boolean_stash = 0;
		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
		1474	void ascii (JSON *self, int enable = 1)
		1475	ALIAS:
		1476	ascii = F_ASCII
		1477	latin1 = F_LATIN1
		1478	utf8 = F_UTF8
		1479	indent = F_INDENT
		1480	canonical = F_CANONICAL
		1481	space_before = F_SPACE_BEFORE
		1482	space_after = F_SPACE_AFTER
		1483	pretty = F_PRETTY
		1484	allow_nonref = F_ALLOW_NONREF
		1485	shrink = F_SHRINK
		1486	allow_blessed = F_ALLOW_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)
		1532	CODE:
		1533	RETVAL = DEC_DEPTH (self->flags);
1169	OUTPUT:	1534	OUTPUT:
1170	RETVAL	1535	RETVAL
1171		1536
1172	SV ascii (SV self, int enable = 1)	1537	void max_size (JSON *self, UV max_size = 0)
1173	ALIAS:	1538	PPCODE:
1174	ascii = F_ASCII	1539	{
1175	latin1 = F_LATIN1	1540	UV log2 = 0;
1176	utf8 = F_UTF8	1541
1177	indent = F_INDENT	1542	if (max_size > 0x80000000UL) max_size = 0x80000000UL;
1178	canonical = F_CANONICAL	1543	if (max_size == 1) max_size = 2;
1179	space_before = F_SPACE_BEFORE	1544
1180	space_after = F_SPACE_AFTER	1545	while ((1UL << log2) < max_size)
1181	pretty = F_PRETTY	1546	++log2;
1182	allow_nonref = F_ALLOW_NONREF	1547
1183	shrink = F_SHRINK	1548	self->flags = self->flags & ~F_MAXSIZE \| (log2 << S_MAXSIZE);
		1549
		1550	XPUSHs (ST (0));
		1551	}
		1552
		1553	int get_max_size (JSON *self)
1184	CODE:	1554	CODE:
1185	{	1555	RETVAL = DEC_SIZE (self->flags);
1186	UV *uv = SvJSON (self);
1187	if (enable)
1188	*uv \|= ix;
1189	else
1190	*uv &= ~ix;
1191
1192	RETVAL = newSVsv (self);
1193	}
1194	OUTPUT:	1556	OUTPUT:
1195	RETVAL	1557	RETVAL
1196		1558
1197	SV max_depth (SV self, UV max_depth = 0x80000000UL)	1559	void filter_json_object (JSON self, SV cb = &PL_sv_undef)
1198	CODE:
1199	{
1200	UV *uv = SvJSON (self);
1201	UV log2 = 0;
1202
1203	if (max_depth > 0x80000000UL) max_depth = 0x80000000UL;
1204
1205	while ((1UL << log2) < max_depth)
1206	++log2;
1207
1208	uv = uv & ~F_MAXDEPTH \| (log2 << S_MAXDEPTH);
1209
1210	RETVAL = newSVsv (self);
1211	}
1212	OUTPUT:
1213	RETVAL
1214
1215	void encode (SV self, SV scalar)
1216	PPCODE:	1560	PPCODE:
1217	XPUSHs (encode_json (scalar, *SvJSON (self)));	1561	{
		1562	SvREFCNT_dec (self->cb_object);
		1563	self->cb_object = SvOK (cb) ? newSVsv (cb) : 0;
1218		1564
1219	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)
1220	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:
1221	XPUSHs (decode_json (jsonstr, *SvJSON (self), 0));	1596	XPUSHs (decode_json (jsonstr, self, 0));
1222		1597
1223	void decode_prefix (SV self, SV jsonstr)	1598	void decode_prefix (JSON self, SV jsonstr)
1224	PPCODE:	1599	PPCODE:
1225	{	1600	{
1226	UV offset;	1601	UV offset;
1227	EXTEND (SP, 2);	1602	EXTEND (SP, 2);
1228	PUSHs (decode_json (jsonstr, *SvJSON (self), &offset));	1603	PUSHs (decode_json (jsonstr, self, &offset));
1229	PUSHs (sv_2mortal (newSVuv (offset)));	1604	PUSHs (sv_2mortal (newSVuv (offset)));
1230	}	1605	}
1231		1606
		1607	void DESTROY (JSON *self)
		1608	CODE:
		1609	SvREFCNT_dec (self->cb_sk_object);
		1610	SvREFCNT_dec (self->cb_object);
		1611
1232	PROTOTYPES: ENABLE	1612	PROTOTYPES: ENABLE
1233		1613
1234	void to_json (SV *scalar)	1614	void encode_json (SV *scalar)
1235	ALIAS:
1236	objToJson = 0
1237	PPCODE:	1615	PPCODE:
		1616	{
		1617	JSON json = { F_DEFAULT \| F_UTF8 };
1238	XPUSHs (encode_json (scalar, F_DEFAULT \| F_UTF8));	1618	XPUSHs (encode_json (scalar, &json));
		1619	}
1239		1620
1240	void from_json (SV *jsonstr)	1621	void decode_json (SV *jsonstr)
1241	ALIAS:
1242	jsonToObj = 0
1243	PPCODE:	1622	PPCODE:
		1623	{
		1624	JSON json = { F_DEFAULT \| F_UTF8 };
1244	XPUSHs (decode_json (jsonstr, F_DEFAULT \| F_UTF8, 0));	1625	XPUSHs (decode_json (jsonstr, &json, 0));
		1626	}
1245		1627

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Comparing JSON-XS/XS.xs (file contents): Revision 1.40 by root, Tue Jun 12 01:27:02 2007 UTC vs. Revision 1.71 by root, Wed Mar 19 03:17:38 2008 UTC

Diff Legend

Comparing JSON-XS/XS.xs (file contents):
Revision 1.40 by root, Tue Jun 12 01:27:02 2007 UTC vs.
Revision 1.71 by root, Wed Mar 19 03:17:38 2008 UTC