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

Comparing JSON-XS/XS.xs (file contents):
Revision 1.87 by root, Tue Jun 3 06:43:45 2008 UTC vs.
Revision 1.137 by root, Sun Feb 24 04:21:05 2019 UTC

…		…
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 <limits.h>	9	#include <limits.h>
10	#include <float.h>	10	#include <float.h>
		11	#include <inttypes.h>
11		12
12	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	13	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)
13	# define snprintf _snprintf // C compilers have this in stdio.h	14	# define snprintf _snprintf // C compilers have this in stdio.h
14	#endif	15	#endif
15		16
16	// some old perls do not have this, try to make it work, no	17	// some old perls do not have this, try to make it work, no
17	// guarentees, though. if it breaks, you get to keep the pieces.	18	// guarantees, though. if it breaks, you get to keep the pieces.
18	#ifndef UTF8_MAXBYTES	19	#ifndef UTF8_MAXBYTES
19	# define UTF8_MAXBYTES 13	20	# define UTF8_MAXBYTES 13
20	#endif	21	#endif
21		22
		23	// compatibility with perl <5.18
		24	#ifndef HvNAMELEN_get
		25	# define HvNAMELEN_get(hv) strlen (HvNAME (hv))
		26	#endif
		27	#ifndef HvNAMELEN
		28	# define HvNAMELEN(hv) HvNAMELEN_get (hv)
		29	#endif
		30	#ifndef HvNAMEUTF8
		31	# define HvNAMEUTF8(hv) 0
		32	#endif
		33
		34	// three extra for rounding, sign, and end of string
22	#define IVUV_MAXCHARS (sizeof (UV) * CHAR_BIT * 28 / 93 + 2)	35	#define IVUV_MAXCHARS (sizeof (UV) * CHAR_BIT * 28 / 93 + 3)
23		36
24	#define F_ASCII 0x00000001UL	37	#define F_ASCII 0x00000001UL
25	#define F_LATIN1 0x00000002UL	38	#define F_LATIN1 0x00000002UL
26	#define F_UTF8 0x00000004UL	39	#define F_UTF8 0x00000004UL
27	#define F_INDENT 0x00000008UL	40	#define F_INDENT 0x00000008UL
…		…
32	#define F_SHRINK 0x00000200UL	45	#define F_SHRINK 0x00000200UL
33	#define F_ALLOW_BLESSED 0x00000400UL	46	#define F_ALLOW_BLESSED 0x00000400UL
34	#define F_CONV_BLESSED 0x00000800UL	47	#define F_CONV_BLESSED 0x00000800UL
35	#define F_RELAXED 0x00001000UL	48	#define F_RELAXED 0x00001000UL
36	#define F_ALLOW_UNKNOWN 0x00002000UL	49	#define F_ALLOW_UNKNOWN 0x00002000UL
		50	#define F_ALLOW_TAGS 0x00004000UL
37	#define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing	51	#define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing
38		52
39	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER	53	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER
40		54
41	#define INIT_SIZE 32 // initial scalar size to be allocated	55	#define INIT_SIZE 64 // initial scalar size to be allocated
42	#define INDENT_STEP 3 // spaces per indentation level	56	#define INDENT_STEP 3 // spaces per indentation level
43		57
44	#define SHORT_STRING_LEN 16384 // special-case strings of up to this size	58	#define SHORT_STRING_LEN 16384 // special-case strings of up to this size
		59
		60	#define DECODE_WANTS_OCTETS(json) ((json)->flags & F_UTF8)
45		61
46	#define SB do {	62	#define SB do {
47	#define SE } while (0)	63	#define SE } while (0)
48		64
49	#if __GNUC__ >= 3	65	#if __GNUC__ >= 3
…		…
62	<= (unsigned type)((unsigned type)(end) - (unsigned type)(beg)))	78	<= (unsigned type)((unsigned type)(end) - (unsigned type)(beg)))
63		79
64	#define ERR_NESTING_EXCEEDED "json text or perl structure exceeds maximum nesting level (max_depth set too low?)"	80	#define ERR_NESTING_EXCEEDED "json text or perl structure exceeds maximum nesting level (max_depth set too low?)"
65		81
66	#ifdef USE_ITHREADS	82	#ifdef USE_ITHREADS
67	# define JSON_SLOW 1
68	# define JSON_STASH (json_stash ? json_stash : gv_stashpv ("JSON::XS", 1))	83	# define JSON_STASH (expect_true (json_stash) ? json_stash : gv_stashpv ("JSON::XS", 1))
		84	# define BOOL_STASH (expect_true (bool_stash) ? bool_stash : gv_stashpv ("Types::Serialiser::Boolean", 1))
		85	# define GET_BOOL(value) (expect_true (bool_ ## value) ? bool_ ## value : get_bool ("Types::Serialiser::" # value))
69	#else	86	#else
70	# define JSON_SLOW 0
71	# define JSON_STASH json_stash	87	# define JSON_STASH json_stash
		88	# define BOOL_STASH bool_stash
		89	# define GET_BOOL(value) bool_ ## value
72	#endif	90	#endif
73		91
74	static HV json_stash, json_boolean_stash; // JSON::XS::	92	// the amount of HEs to allocate on the stack, when sorting keys
75	static SV json_true, json_false;	93	#define STACK_HES 64
		94
		95	static HV json_stash, bool_stash; // JSON::XS::, Types::Serialiser::Boolean::
		96	static SV bool_false, bool_true;
		97	static SV *sv_json;
76		98
77	enum {	99	enum {
78	INCR_M_WS = 0, // initial whitespace skipping, must be 0	100	INCR_M_WS = 0, // initial whitespace skipping, must be 0
		101	INCR_M_TFN, // inside true/false/null
		102	INCR_M_NUM, // inside number
79	INCR_M_STR, // inside string	103	INCR_M_STR, // inside string
80	INCR_M_BS, // inside backslash	104	INCR_M_BS, // inside backslash
		105	INCR_M_C0, // inside comment in initial whitespace sequence
		106	INCR_M_C1, // inside comment in other places
81	INCR_M_JSON // outside anything, count nesting	107	INCR_M_JSON // outside anything, count nesting
82	};	108	};
83		109
84	#define INCR_DONE(json) (!(json)->incr_nest && (json)->incr_mode == INCR_M_JSON)	110	#define INCR_DONE(json) ((json)->incr_nest <= 0 && (json)->incr_mode == INCR_M_JSON)
85		111
86	typedef struct {	112	typedef struct {
87	U32 flags;	113	U32 flags;
88	U32 max_depth;	114	U32 max_depth;
89	STRLEN max_size;	115	STRLEN max_size;
…		…
92	HV *cb_sk_object;	118	HV *cb_sk_object;
93		119
94	// for the incremental parser	120	// for the incremental parser
95	SV *incr_text; // the source text so far	121	SV *incr_text; // the source text so far
96	STRLEN incr_pos; // the current offset into the text	122	STRLEN incr_pos; // the current offset into the text
97	unsigned char incr_nest; // {[]}-nesting level	123	int incr_nest; // {[]}-nesting level
98	unsigned char incr_mode;	124	unsigned char incr_mode;
		125
		126	SV v_false, v_true;
99	} JSON;	127	} JSON;
100		128
101	INLINE void	129	INLINE void
102	json_init (JSON *json)	130	json_init (JSON *json)
103	{	131	{
104	Zero (json, 1, JSON);	132	static const JSON init = { F_ALLOW_NONREF, 512 };
105	json->max_depth = 512;	133
		134	*json = init;
106	}	135	}
107		136
108	/////////////////////////////////////////////////////////////////////////////	137	/////////////////////////////////////////////////////////////////////////////
109	// utility functions	138	// utility functions
110		139
…		…
132	SvPV_renew (sv, SvCUR (sv) + 1);	161	SvPV_renew (sv, SvCUR (sv) + 1);
133	#endif	162	#endif
134	}	163	}
135	}	164	}
136		165
		166	/* adds two STRLENs together, slow, and with paranoia */
		167	STRLEN
		168	strlen_sum (STRLEN l1, STRLEN l2)
		169	{
		170	size_t sum = l1 + l2;
		171
		172	if (sum < (size_t)l2 \|\| sum != (size_t)(STRLEN)sum)
		173	croak ("JSON::XS: string size overflow");
		174
		175	return sum;
		176	}
		177
		178	/* similar to SvGROW, but somewhat safer and guarantees exponential realloc strategy */
		179	static char *
		180	json_sv_grow (SV *sv, size_t len1, size_t len2)
		181	{
		182	len1 = strlen_sum (len1, len2);
		183	len1 = strlen_sum (len1, len1 >> 1);
		184
		185	if (len1 > 4096 - 24)
		186	len1 = (len1 \| 4095) - 24;
		187
		188	return SvGROW (sv, len1);
		189	}
		190
137	// decode an utf-8 character and return it, or (UV)-1 in	191	// decode a utf-8 character and return it, or (UV)-1 in
138	// case of an error.	192	// case of an error.
139	// we special-case "safe" characters from U+80 .. U+7FF,	193	// we special-case "safe" characters from U+80 .. U+7FF,
140	// but use the very good perl function to parse anything else.	194	// but use the very good perl function to parse anything else.
141	// note that we never call this function for a ascii codepoints	195	// note that we never call this function for a ascii codepoints
142	INLINE UV	196	INLINE UV
…		…
175	*s++ = 0x80 \| ( ch & 0x3f);	229	*s++ = 0x80 \| ( ch & 0x3f);
176		230
177	return s;	231	return s;
178	}	232	}
179		233
		234	// convert offset pointer to character index, sv must be string
		235	static STRLEN
		236	ptr_to_index (SV sv, char offset)
		237	{
		238	return SvUTF8 (sv)
		239	? utf8_distance (offset, SvPVX (sv))
		240	: offset - SvPVX (sv);
		241	}
		242
		243	/////////////////////////////////////////////////////////////////////////////
		244	// fp hell
		245
		246	// scan a group of digits, and a trailing exponent
		247	static void
		248	json_atof_scan1 (const char s, NV accum, int *expo, int postdp, int maxdepth)
		249	{
		250	UV uaccum = 0;
		251	int eaccum = 0;
		252
		253	// if we recurse too deep, skip all remaining digits
		254	// to avoid a stack overflow attack
		255	if (expect_false (--maxdepth <= 0))
		256	while (((U8)*s - '0') < 10)
		257	++s;
		258
		259	for (;;)
		260	{
		261	U8 dig = (U8)*s - '0';
		262
		263	if (expect_false (dig >= 10))
		264	{
		265	if (dig == (U8)((U8)'.' - (U8)'0'))
		266	{
		267	++s;
		268	json_atof_scan1 (s, accum, expo, 1, maxdepth);
		269	}
		270	else if ((dig \| ' ') == 'e' - '0')
		271	{
		272	int exp2 = 0;
		273	int neg = 0;
		274
		275	++s;
		276
		277	if (*s == '-')
		278	{
		279	++s;
		280	neg = 1;
		281	}
		282	else if (*s == '+')
		283	++s;
		284
		285	while ((dig = (U8)*s - '0') < 10)
		286	exp2 = exp2 * 10 + *s++ - '0';
		287
		288	*expo += neg ? -exp2 : exp2;
		289	}
		290
		291	break;
		292	}
		293
		294	++s;
		295
		296	uaccum = uaccum * 10 + dig;
		297	++eaccum;
		298
		299	// if we have too many digits, then recurse for more
		300	// we actually do this for rather few digits
		301	if (uaccum >= (UV_MAX - 9) / 10)
		302	{
		303	if (postdp) *expo -= eaccum;
		304	json_atof_scan1 (s, accum, expo, postdp, maxdepth);
		305	if (postdp) *expo += eaccum;
		306
		307	break;
		308	}
		309	}
		310
		311	// this relies greatly on the quality of the pow ()
		312	// implementation of the platform, but a good
		313	// implementation is hard to beat.
		314	// (IEEE 754 conformant ones are required to be exact)
		315	if (postdp) *expo -= eaccum;
		316	accum += uaccum Perl_pow (10., *expo);
		317	*expo += eaccum;
		318	}
		319
		320	static NV
		321	json_atof (const char *s)
		322	{
		323	NV accum = 0.;
		324	int expo = 0;
		325	int neg = 0;
		326
		327	if (*s == '-')
		328	{
		329	++s;
		330	neg = 1;
		331	}
		332
		333	// a recursion depth of ten gives us >>500 bits
		334	json_atof_scan1 (s, &accum, &expo, 0, 10);
		335
		336	return neg ? -accum : accum;
		337	}
		338
		339	// target of scalar reference is bool? -1 == nope, 0 == false, 1 == true
		340	static int
		341	ref_bool_type (SV *sv)
		342	{
		343	svtype svt = SvTYPE (sv);
		344
		345	if (svt < SVt_PVAV)
		346	{
		347	STRLEN len = 0;
		348	char *pv = svt ? SvPV (sv, len) : 0;
		349
		350	if (len == 1)
		351	if (*pv == '1')
		352	return 1;
		353	else if (*pv == '0')
		354	return 0;
		355	}
		356
		357	return -1;
		358	}
		359
		360	// returns whether scalar is not a reference in the sense of allow_nonref
		361	static int
		362	json_nonref (SV *scalar)
		363	{
		364	if (!SvROK (scalar))
		365	return 1;
		366
		367	scalar = SvRV (scalar);
		368
		369	if (SvTYPE (scalar) >= SVt_PVMG)
		370	{
		371	if (SvSTASH (scalar) == bool_stash)
		372	return 1;
		373
		374	if (!SvOBJECT (scalar) && ref_bool_type (scalar) >= 0)
		375	return 1;
		376	}
		377
		378	return 0;
		379	}
		380
180	/////////////////////////////////////////////////////////////////////////////	381	/////////////////////////////////////////////////////////////////////////////
181	// encoder	382	// encoder
182		383
183	// structure used for encoding JSON	384	// structure used for encoding JSON
184	typedef struct	385	typedef struct
…		…
192	} enc_t;	393	} enc_t;
193		394
194	INLINE void	395	INLINE void
195	need (enc_t *enc, STRLEN len)	396	need (enc_t *enc, STRLEN len)
196	{	397	{
197	if (expect_false (enc->cur + len >= enc->end))	398	if (expect_false ((uintptr_t)(enc->end - enc->cur) < len))
198	{	399	{
199	STRLEN cur = enc->cur - SvPVX (enc->sv);	400	STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);
200	SvGROW (enc->sv, cur + len + 1);	401	char *buf = json_sv_grow (enc->sv, cur, len);
201	enc->cur = SvPVX (enc->sv) + cur;	402	enc->cur = buf + cur;
202	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;	403	enc->end = buf + SvLEN (enc->sv) - 1;
203	}	404	}
204	}	405	}
205		406
206	INLINE void	407	INLINE void
207	encode_ch (enc_t *enc, char ch)	408	encode_ch (enc_t *enc, char ch)
…		…
223		424
224	if (expect_true (ch >= 0x20 && ch < 0x80)) // most common case	425	if (expect_true (ch >= 0x20 && ch < 0x80)) // most common case
225	{	426	{
226	if (expect_false (ch == '"')) // but with slow exceptions	427	if (expect_false (ch == '"')) // but with slow exceptions
227	{	428	{
228	need (enc, len += 1);	429	need (enc, len + 1);
229	*enc->cur++ = '\\';	430	*enc->cur++ = '\\';
230	*enc->cur++ = '"';	431	*enc->cur++ = '"';
231	}	432	}
232	else if (expect_false (ch == '\\'))	433	else if (expect_false (ch == '\\'))
233	{	434	{
234	need (enc, len += 1);	435	need (enc, len + 1);
235	*enc->cur++ = '\\';	436	*enc->cur++ = '\\';
236	*enc->cur++ = '\\';	437	*enc->cur++ = '\\';
237	}	438	}
238	else	439	else
239	*enc->cur++ = ch;	440	*enc->cur++ = ch;
…		…
242	}	443	}
243	else	444	else
244	{	445	{
245	switch (ch)	446	switch (ch)
246	{	447	{
247	case '\010': need (enc, len += 1); enc->cur++ = '\\'; enc->cur++ = 'b'; ++str; break;	448	case '\010': need (enc, len + 1); enc->cur++ = '\\'; enc->cur++ = 'b'; ++str; break;
248	case '\011': need (enc, len += 1); enc->cur++ = '\\'; enc->cur++ = 't'; ++str; break;	449	case '\011': need (enc, len + 1); enc->cur++ = '\\'; enc->cur++ = 't'; ++str; break;
249	case '\012': need (enc, len += 1); enc->cur++ = '\\'; enc->cur++ = 'n'; ++str; break;	450	case '\012': need (enc, len + 1); enc->cur++ = '\\'; enc->cur++ = 'n'; ++str; break;
250	case '\014': need (enc, len += 1); enc->cur++ = '\\'; enc->cur++ = 'f'; ++str; break;	451	case '\014': need (enc, len + 1); enc->cur++ = '\\'; enc->cur++ = 'f'; ++str; break;
251	case '\015': need (enc, len += 1); enc->cur++ = '\\'; enc->cur++ = 'r'; ++str; break;	452	case '\015': need (enc, len + 1); enc->cur++ = '\\'; enc->cur++ = 'r'; ++str; break;
252		453
253	default:	454	default:
254	{	455	{
255	STRLEN clen;	456	STRLEN clen;
256	UV uch;	457	UV uch;
…		…
272	if (uch >= 0x10000UL)	473	if (uch >= 0x10000UL)
273	{	474	{
274	if (uch >= 0x110000UL)	475	if (uch >= 0x110000UL)
275	croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);	476	croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);
276		477
277	need (enc, len += 11);	478	need (enc, len + 11);
278	sprintf (enc->cur, "\\u%04x\\u%04x",	479	sprintf (enc->cur, "\\u%04x\\u%04x",
279	(int)((uch - 0x10000) / 0x400 + 0xD800),	480	(int)((uch - 0x10000) / 0x400 + 0xD800),
280	(int)((uch - 0x10000) % 0x400 + 0xDC00));	481	(int)((uch - 0x10000) % 0x400 + 0xDC00));
281	enc->cur += 12;	482	enc->cur += 12;
282	}	483	}
283	else	484	else
284	{	485	{
285	static char hexdigit [16] = "0123456789abcdef";
286	need (enc, len += 5);	486	need (enc, len + 5);
287	*enc->cur++ = '\\';	487	*enc->cur++ = '\\';
288	*enc->cur++ = 'u';	488	*enc->cur++ = 'u';
289	*enc->cur++ = hexdigit [ uch >> 12 ];	489	*enc->cur++ = PL_hexdigit [ uch >> 12 ];
290	*enc->cur++ = hexdigit [(uch >> 8) & 15];	490	*enc->cur++ = PL_hexdigit [(uch >> 8) & 15];
291	*enc->cur++ = hexdigit [(uch >> 4) & 15];	491	*enc->cur++ = PL_hexdigit [(uch >> 4) & 15];
292	*enc->cur++ = hexdigit [(uch >> 0) & 15];	492	*enc->cur++ = PL_hexdigit [(uch >> 0) & 15];
293	}	493	}
294		494
295	str += clen;	495	str += clen;
296	}	496	}
297	else if (enc->json.flags & F_LATIN1)	497	else if (enc->json.flags & F_LATIN1)
…		…
299	*enc->cur++ = uch;	499	*enc->cur++ = uch;
300	str += clen;	500	str += clen;
301	}	501	}
302	else if (is_utf8)	502	else if (is_utf8)
303	{	503	{
304	need (enc, len += clen);	504	need (enc, len + clen);
305	do	505	do
306	{	506	{
307	enc->cur++ = str++;	507	enc->cur++ = str++;
308	}	508	}
309	while (--clen);	509	while (--clen);
310	}	510	}
311	else	511	else
312	{	512	{
313	need (enc, len += UTF8_MAXBYTES - 1); // never more than 11 bytes needed	513	need (enc, len + UTF8_MAXBYTES - 1); // never more than 11 bytes needed
314	enc->cur = encode_utf8 (enc->cur, uch);	514	enc->cur = encode_utf8 (enc->cur, uch);
315	++str;	515	++str;
316	}	516	}
317	}	517	}
318	}	518	}
…		…
372		572
373	if (enc->indent >= enc->json.max_depth)	573	if (enc->indent >= enc->json.max_depth)
374	croak (ERR_NESTING_EXCEEDED);	574	croak (ERR_NESTING_EXCEEDED);
375		575
376	encode_ch (enc, '[');	576	encode_ch (enc, '[');
377		577
378	if (len >= 0)	578	if (len >= 0)
379	{	579	{
380	encode_nl (enc); ++enc->indent;	580	encode_nl (enc); ++enc->indent;
381		581
382	for (i = 0; i <= len; ++i)	582	for (i = 0; i <= len; ++i)
…		…
394	encode_comma (enc);	594	encode_comma (enc);
395	}	595	}
396		596
397	encode_nl (enc); --enc->indent; encode_indent (enc);	597	encode_nl (enc); --enc->indent; encode_indent (enc);
398	}	598	}
399		599
400	encode_ch (enc, ']');	600	encode_ch (enc, ']');
401	}	601	}
402		602
403	static void	603	static void
404	encode_hk (enc_t enc, HE he)	604	encode_hk (enc_t enc, HE he)
…		…
408	if (HeKLEN (he) == HEf_SVKEY)	608	if (HeKLEN (he) == HEf_SVKEY)
409	{	609	{
410	SV *sv = HeSVKEY (he);	610	SV *sv = HeSVKEY (he);
411	STRLEN len;	611	STRLEN len;
412	char *str;	612	char *str;
413		613
414	SvGETMAGIC (sv);	614	SvGETMAGIC (sv);
415	str = SvPV (sv, len);	615	str = SvPV (sv, len);
416		616
417	encode_str (enc, str, len, SvUTF8 (sv));	617	encode_str (enc, str, len, SvUTF8 (sv));
418	}	618	}
…		…
461		661
462	encode_ch (enc, '{');	662	encode_ch (enc, '{');
463		663
464	// for canonical output we have to sort by keys first	664	// for canonical output we have to sort by keys first
465	// actually, this is mostly due to the stupid so-called	665	// actually, this is mostly due to the stupid so-called
466	// security workaround added somewhere in 5.8.x.	666	// security workaround added somewhere in 5.8.x
467	// that randomises hash orderings	667	// that randomises hash orderings
468	if (enc->json.flags & F_CANONICAL)	668	if (enc->json.flags & F_CANONICAL && !SvRMAGICAL (hv))
469	{	669	{
470	int count = hv_iterinit (hv);	670	int count = hv_iterinit (hv);
471		671
472	if (SvMAGICAL (hv))	672	if (SvMAGICAL (hv))
473	{	673	{
…		…
484	}	684	}
485		685
486	if (count)	686	if (count)
487	{	687	{
488	int i, fast = 1;	688	int i, fast = 1;
489	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	689	HE *hes_stack [STACK_HES];
490	HE *hes = _alloca (count sizeof (HE));	690	HE **hes = hes_stack;
491	#else	691
492	HE *hes [count]; // if your compiler dies here, you need to enable C99 mode	692	// allocate larger arrays on the heap
493	#endif	693	if (count > STACK_HES)
		694	{
		695	SV sv = sv_2mortal (NEWSV (0, count sizeof (*hes)));
		696	hes = (HE **)SvPVX (sv);
		697	}
494		698
495	i = 0;	699	i = 0;
496	while ((he = hv_iternext (hv)))	700	while ((he = hv_iternext (hv)))
497	{	701	{
498	hes [i++] = he;	702	hes [i++] = he;
…		…
567	// encode objects, arrays and special \0=false and \1=true values.	771	// encode objects, arrays and special \0=false and \1=true values.
568	static void	772	static void
569	encode_rv (enc_t enc, SV sv)	773	encode_rv (enc_t enc, SV sv)
570	{	774	{
571	svtype svt;	775	svtype svt;
		776	GV *method;
572		777
573	SvGETMAGIC (sv);	778	SvGETMAGIC (sv);
574	svt = SvTYPE (sv);	779	svt = SvTYPE (sv);
575		780
576	if (expect_false (SvOBJECT (sv)))	781	if (expect_false (SvOBJECT (sv)))
577	{	782	{
578	HV *stash = !JSON_SLOW \|\| json_boolean_stash	783	HV *stash = SvSTASH (sv);
579	? json_boolean_stash
580	: gv_stashpv ("JSON::XS::Boolean", 1);
581		784
582	if (SvSTASH (sv) == stash)	785	if (stash == bool_stash)
583	{	786	{
584	if (SvIV (sv))
585	encode_str (enc, "true", 4, 0);	787	if (SvIV (sv)) encode_str (enc, "true" , 4, 0);
586	else
587	encode_str (enc, "false", 5, 0);	788	else encode_str (enc, "false", 5, 0);
588	}	789	}
		790	else if ((enc->json.flags & F_ALLOW_TAGS) && (method = gv_fetchmethod_autoload (stash, "FREEZE", 0)))
		791	{
		792	int count;
		793	dSP;
		794
		795	ENTER; SAVETMPS;
		796	PUSHMARK (SP);
		797	EXTEND (SP, 2);
		798	// we re-bless the reference to get overload and other niceties right
		799	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
		800	PUSHs (sv_json);
		801
		802	PUTBACK;
		803	count = call_sv ((SV *)GvCV (method), G_ARRAY);
		804	SPAGAIN;
		805
		806	// catch this surprisingly common error
		807	if (SvROK (TOPs) && SvRV (TOPs) == sv)
		808	croak ("%s::FREEZE method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
		809
		810	encode_ch (enc, '(');
		811	encode_ch (enc, '"');
		812	encode_str (enc, HvNAME (stash), HvNAMELEN (stash), HvNAMEUTF8 (stash));
		813	encode_ch (enc, '"');
		814	encode_ch (enc, ')');
		815	encode_ch (enc, '[');
		816
		817	if (count)
		818	{
		819	int i;
		820
		821	for (i = 0; i < count - 1; ++i)
		822	{
		823	encode_sv (enc, SP[i + 1 - count]);
		824	encode_ch (enc, ',');
		825	}
		826
		827	encode_sv (enc, TOPs);
		828	SP -= count;
		829	}
		830
		831	encode_ch (enc, ']');
		832
		833	FREETMPS; LEAVE;
		834	}
		835	else if ((enc->json.flags & F_CONV_BLESSED) && (method = gv_fetchmethod_autoload (stash, "TO_JSON", 0)))
		836	{
		837	dSP;
		838
		839	ENTER; SAVETMPS;
		840	PUSHMARK (SP);
		841	// we re-bless the reference to get overload and other niceties right
		842	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
		843
		844	// calling with G_SCALAR ensures that we always get a 1 return value
		845	PUTBACK;
		846	call_sv ((SV *)GvCV (method), G_SCALAR);
		847	SPAGAIN;
		848
		849	// catch this surprisingly common error
		850	if (SvROK (TOPs) && SvRV (TOPs) == sv)
		851	croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
		852
		853	sv = POPs;
		854	PUTBACK;
		855
		856	encode_sv (enc, sv);
		857
		858	FREETMPS; LEAVE;
		859	}
		860	else if (enc->json.flags & F_ALLOW_BLESSED)
		861	encode_str (enc, "null", 4, 0);
589	else	862	else
590	{
591	#if 0
592	if (0 && sv_derived_from (rv, "JSON::Literal"))
593	{
594	// not yet
595	}
596	#endif
597	if (enc->json.flags & F_CONV_BLESSED)
598	{
599	// we re-bless the reference to get overload and other niceties right
600	GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 0);
601
602	if (to_json)
603	{
604	dSP;
605
606	ENTER; SAVETMPS; PUSHMARK (SP);
607	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv)));
608
609	// calling with G_SCALAR ensures that we always get a 1 return value
610	PUTBACK;
611	call_sv ((SV *)GvCV (to_json), G_SCALAR);
612	SPAGAIN;
613
614	// catch this surprisingly common error
615	if (SvROK (TOPs) && SvRV (TOPs) == sv)
616	croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
617
618	sv = POPs;
619	PUTBACK;
620
621	encode_sv (enc, sv);
622
623	FREETMPS; LEAVE;
624	}
625	else if (enc->json.flags & F_ALLOW_BLESSED)
626	encode_str (enc, "null", 4, 0);
627	else
628	croak ("encountered object '%s', but neither allow_blessed enabled nor TO_JSON method available on it",
629	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
630	}
631	else if (enc->json.flags & F_ALLOW_BLESSED)
632	encode_str (enc, "null", 4, 0);
633	else
634	croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled",	863	croak ("encountered object '%s', but neither allow_blessed, convert_blessed nor allow_tags settings are enabled (or TO_JSON/FREEZE method missing)",
635	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	864	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
636	}
637	}	865	}
638	else if (svt == SVt_PVHV)	866	else if (svt == SVt_PVHV)
639	encode_hv (enc, (HV *)sv);	867	encode_hv (enc, (HV *)sv);
640	else if (svt == SVt_PVAV)	868	else if (svt == SVt_PVAV)
641	encode_av (enc, (AV *)sv);	869	encode_av (enc, (AV *)sv);
642	else if (svt < SVt_PVAV)	870	else if (svt < SVt_PVAV)
643	{	871	{
644	STRLEN len = 0;	872	int bool_type = ref_bool_type (sv);
645	char *pv = svt ? SvPV (sv, len) : 0;
646		873
647	if (len == 1 && *pv == '1')	874	if (bool_type == 1)
648	encode_str (enc, "true", 4, 0);	875	encode_str (enc, "true", 4, 0);
649	else if (len == 1 && *pv == '0')	876	else if (bool_type == 0)
650	encode_str (enc, "false", 5, 0);	877	encode_str (enc, "false", 5, 0);
651	else if (enc->json.flags & F_ALLOW_UNKNOWN)	878	else if (enc->json.flags & F_ALLOW_UNKNOWN)
652	encode_str (enc, "null", 4, 0);	879	encode_str (enc, "null", 4, 0);
653	else	880	else
654	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",	881	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",
…		…
717	}	944	}
718	else	945	else
719	{	946	{
720	// large integer, use the (rather slow) snprintf way.	947	// large integer, use the (rather slow) snprintf way.
721	need (enc, IVUV_MAXCHARS);	948	need (enc, IVUV_MAXCHARS);
722	enc->cur +=	949	enc->cur +=
723	SvIsUV(sv)	950	SvIsUV(sv)
724	? snprintf (enc->cur, IVUV_MAXCHARS, "%"UVuf, (UV)SvUVX (sv))	951	? snprintf (enc->cur, IVUV_MAXCHARS, "%"UVuf, (UV)SvUVX (sv))
725	: snprintf (enc->cur, IVUV_MAXCHARS, "%"IVdf, (IV)SvIVX (sv));	952	: snprintf (enc->cur, IVUV_MAXCHARS, "%"IVdf, (IV)SvIVX (sv));
726	}	953	}
727	}	954	}
728	else if (SvROK (sv))	955	else if (SvROK (sv))
729	encode_rv (enc, SvRV (sv));	956	encode_rv (enc, SvRV (sv));
730	else if (!SvOK (sv) \|\| enc->json.flags & F_ALLOW_UNKNOWN)	957	else if (!SvOK (sv) \|\| enc->json.flags & F_ALLOW_UNKNOWN)
731	encode_str (enc, "null", 4, 0);	958	encode_str (enc, "null", 4, 0);
732	else	959	else
733	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",	960	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, check your input data",
734	SvPV_nolen (sv), SvFLAGS (sv));	961	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));
735	}	962	}
736		963
737	static SV *	964	static SV *
738	encode_json (SV scalar, JSON json)	965	encode_json (SV scalar, JSON json)
739	{	966	{
740	enc_t enc;	967	enc_t enc;
741		968
742	if (!(json->flags & F_ALLOW_NONREF) && !SvROK (scalar))	969	if (!(json->flags & F_ALLOW_NONREF) && json_nonref (scalar))
743	croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");	970	croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");
744		971
745	enc.json = *json;	972	enc.json = *json;
746	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	973	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
747	enc.cur = SvPVX (enc.sv);	974	enc.cur = SvPVX (enc.sv);
…		…
751	: enc.json.flags & F_LATIN1 ? 0x000100UL	978	: enc.json.flags & F_LATIN1 ? 0x000100UL
752	: 0x110000UL;	979	: 0x110000UL;
753		980
754	SvPOK_only (enc.sv);	981	SvPOK_only (enc.sv);
755	encode_sv (&enc, scalar);	982	encode_sv (&enc, scalar);
		983	encode_nl (&enc);
756		984
757	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));	985	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));
758	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings	986	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings
759		987
760	if (!(enc.json.flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))	988	if (!(enc.json.flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))
…		…
940	else if (expect_true (ch >= 0x20 && ch < 0x80))	1168	else if (expect_true (ch >= 0x20 && ch < 0x80))
941	*cur++ = ch;	1169	*cur++ = ch;
942	else if (ch >= 0x80)	1170	else if (ch >= 0x80)
943	{	1171	{
944	STRLEN clen;	1172	STRLEN clen;
945	UV uch;
946		1173
947	--dec_cur;	1174	--dec_cur;
948		1175
949	uch = decode_utf8 (dec_cur, dec->end - dec_cur, &clen);	1176	decode_utf8 (dec_cur, dec->end - dec_cur, &clen);
950	if (clen == (STRLEN)-1)	1177	if (clen == (STRLEN)-1)
951	ERR ("malformed UTF-8 character in JSON string");	1178	ERR ("malformed UTF-8 character in JSON string");
952		1179
953	do	1180	do
954	cur++ = dec_cur++;	1181	cur++ = dec_cur++;
955	while (--clen);	1182	while (--clen);
956		1183
957	utf8 = 1;	1184	utf8 = 1;
958	}	1185	}
		1186	else if (ch == '\t' && dec->json.flags & F_RELAXED)
		1187	*cur++ = ch;
959	else	1188	else
960	{	1189	{
961	--dec_cur;	1190	--dec_cur;
962		1191
963	if (!ch)	1192	if (!ch)
…		…
971	{	1200	{
972	STRLEN len = cur - buf;	1201	STRLEN len = cur - buf;
973		1202
974	if (sv)	1203	if (sv)
975	{	1204	{
976	SvGROW (sv, SvCUR (sv) + len + 1);	1205	STRLEN cur = SvCUR (sv);
		1206
		1207	if (SvLEN (sv) - cur <= len)
		1208	json_sv_grow (sv, cur, len);
		1209
977	memcpy (SvPVX (sv) + SvCUR (sv), buf, len);	1210	memcpy (SvPVX (sv) + SvCUR (sv), buf, len);
978	SvCUR_set (sv, SvCUR (sv) + len);	1211	SvCUR_set (sv, SvCUR (sv) + len);
979	}	1212	}
980	else	1213	else
981	sv = newSVpvn (buf, len);	1214	sv = newSVpvn (buf, len);
…		…
1072		1305
1073	// special case the rather common 1..5-digit-int case	1306	// special case the rather common 1..5-digit-int case
1074	if (*start == '-')	1307	if (*start == '-')
1075	switch (len)	1308	switch (len)
1076	{	1309	{
1077	case 2: return newSViv (-( start [1] - '0' * 1));	1310	case 2: return newSViv (-(IV)( start [1] - '0' * 1));
1078	case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11));	1311	case 3: return newSViv (-(IV)( start [1] * 10 + start [2] - '0' * 11));
1079	case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111));	1312	case 4: return newSViv (-(IV)( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111));
1080	case 5: return newSViv (-( start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111));	1313	case 5: return newSViv (-(IV)( start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111));
1081	case 6: return newSViv (-(start [1] * 10000 + start [2] * 1000 + start [3] * 100 + start [4] * 10 + start [5] - '0' * 11111));	1314	case 6: return newSViv (-(IV)(start [1] * 10000 + start [2] * 1000 + start [3] * 100 + start [4] * 10 + start [5] - '0' * 11111));
1082	}	1315	}
1083	else	1316	else
1084	switch (len)	1317	switch (len)
1085	{	1318	{
1086	case 1: return newSViv ( start [0] - '0' * 1);	1319	case 1: return newSViv ( start [0] - '0' * 1);
1087	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);	1320	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);
1088	case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111);	1321	case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111);
1089	case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111);	1322	case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111);
1090	case 5: return newSViv ( start [0] * 10000 + start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 11111);	1323	case 5: return newSViv ( start [0] * 10000 + start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 11111);
1091	}	1324	}
1092		1325
1093	{	1326	{
1094	UV uv;	1327	UV uv;
1095	int numtype = grok_number (start, len, &uv);	1328	int numtype = grok_number (start, len, &uv);
…		…
1104	}	1337	}
1105		1338
1106	len -= *start == '-' ? 1 : 0;	1339	len -= *start == '-' ? 1 : 0;
1107		1340
1108	// does not fit into IV or UV, try NV	1341	// does not fit into IV or UV, try NV
1109	if ((sizeof (NV) == sizeof (double) && DBL_DIG >= len)	1342	if (len <= NV_DIG)
1110	#if defined (LDBL_DIG)
1111	\|\| (sizeof (NV) == sizeof (long double) && LDBL_DIG >= len)
1112	#endif
1113	)
1114	// fits into NV without loss of precision	1343	// fits into NV without loss of precision
1115	return newSVnv (Atof (start));	1344	return newSVnv (json_atof (start));
1116		1345
1117	// everything else fails, convert it to a string	1346	// everything else fails, convert it to a string
1118	return newSVpvn (start, dec->cur - start);	1347	return newSVpvn (start, dec->cur - start);
1119	}	1348	}
1120		1349
1121	// loss of precision here	1350	// loss of precision here
1122	return newSVnv (Atof (start));	1351	return newSVnv (json_atof (start));
1123		1352
1124	fail:	1353	fail:
1125	return 0;	1354	return 0;
1126	}	1355	}
1127		1356
…		…
1151	if (*dec->cur == ']')	1380	if (*dec->cur == ']')
1152	{	1381	{
1153	++dec->cur;	1382	++dec->cur;
1154	break;	1383	break;
1155	}	1384	}
1156		1385
1157	if (*dec->cur != ',')	1386	if (*dec->cur != ',')
1158	ERR (", or ] expected while parsing array");	1387	ERR (", or ] expected while parsing array");
1159		1388
1160	++dec->cur;	1389	++dec->cur;
1161		1390
…		…
1275		1504
1276	DEC_DEC_DEPTH;	1505	DEC_DEC_DEPTH;
1277	sv = newRV_noinc ((SV *)hv);	1506	sv = newRV_noinc ((SV *)hv);
1278		1507
1279	// check filter callbacks	1508	// check filter callbacks
1280	if (dec->json.flags & F_HOOK)	1509	if (expect_false (dec->json.flags & F_HOOK))
1281	{	1510	{
1282	if (dec->json.cb_sk_object && HvKEYS (hv) == 1)	1511	if (dec->json.cb_sk_object && HvKEYS (hv) == 1)
1283	{	1512	{
1284	HE cb, he;	1513	HE cb, he;
1285		1514
1286	hv_iterinit (hv);	1515	hv_iterinit (hv);
1287	he = hv_iternext (hv);	1516	he = hv_iternext (hv);
1288	hv_iterinit (hv);	1517	hv_iterinit (hv);
1289		1518
1290	// the next line creates a mortal sv each time its called.	1519	// the next line creates a mortal sv each time it's called.
1291	// might want to optimise this for common cases.	1520	// might want to optimise this for common cases.
1292	cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0);	1521	cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0);
1293		1522
1294	if (cb)	1523	if (cb)
1295	{	1524	{
1296	dSP;	1525	dSP;
1297	int count;	1526	int count;
1298		1527
1299	ENTER; SAVETMPS; PUSHMARK (SP);	1528	ENTER; SAVETMPS;
		1529	PUSHMARK (SP);
1300	XPUSHs (HeVAL (he));	1530	XPUSHs (HeVAL (he));
		1531	sv_2mortal (sv);
1301		1532
1302	PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN;	1533	PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN;
1303		1534
1304	if (count == 1)	1535	if (count == 1)
1305	{	1536	{
1306	sv = newSVsv (POPs);	1537	sv = newSVsv (POPs);
1307	FREETMPS; LEAVE;	1538	FREETMPS; LEAVE;
1308	return sv;	1539	return sv;
1309	}	1540	}
		1541	else if (count)
		1542	croak ("filter_json_single_key_object callbacks must not return more than one scalar");
1310		1543
		1544	SvREFCNT_inc (sv);
1311	FREETMPS; LEAVE;	1545	FREETMPS; LEAVE;
1312	}	1546	}
1313	}	1547	}
1314		1548
1315	if (dec->json.cb_object)	1549	if (dec->json.cb_object)
1316	{	1550	{
1317	dSP;	1551	dSP;
1318	int count;	1552	int count;
1319		1553
1320	ENTER; SAVETMPS; PUSHMARK (SP);	1554	ENTER; SAVETMPS;
		1555	PUSHMARK (SP);
1321	XPUSHs (sv_2mortal (sv));	1556	XPUSHs (sv_2mortal (sv));
1322		1557
1323	PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN;	1558	PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN;
1324		1559
1325	if (count == 1)	1560	if (count == 1)
1326	{
1327	sv = newSVsv (POPs);	1561	sv = newSVsv (POPs);
1328	FREETMPS; LEAVE;	1562	else if (count == 0)
1329	return sv;
1330	}
1331
1332	SvREFCNT_inc (sv);	1563	SvREFCNT_inc (sv);
		1564	else
		1565	croak ("filter_json_object callbacks must not return more than one scalar");
		1566
1333	FREETMPS; LEAVE;	1567	FREETMPS; LEAVE;
1334	}	1568	}
1335	}	1569	}
1336		1570
1337	return sv;	1571	return sv;
…		…
1341	DEC_DEC_DEPTH;	1575	DEC_DEC_DEPTH;
1342	return 0;	1576	return 0;
1343	}	1577	}
1344		1578
1345	static SV *	1579	static SV *
		1580	decode_tag (dec_t *dec)
		1581	{
		1582	SV *tag = 0;
		1583	SV *val = 0;
		1584
		1585	if (!(dec->json.flags & F_ALLOW_TAGS))
		1586	ERR ("malformed JSON string, neither array, object, number, string or atom");
		1587
		1588	++dec->cur;
		1589
		1590	decode_ws (dec);
		1591
		1592	tag = decode_sv (dec);
		1593	if (!tag)
		1594	goto fail;
		1595
		1596	if (!SvPOK (tag))
		1597	ERR ("malformed JSON string, (tag) must be a string");
		1598
		1599	decode_ws (dec);
		1600
		1601	if (*dec->cur != ')')
		1602	ERR (") expected after tag");
		1603
		1604	++dec->cur;
		1605
		1606	decode_ws (dec);
		1607
		1608	val = decode_sv (dec);
		1609	if (!val)
		1610	goto fail;
		1611
		1612	if (!SvROK (val) \|\| SvTYPE (SvRV (val)) != SVt_PVAV)
		1613	ERR ("malformed JSON string, tag value must be an array");
		1614
		1615	{
		1616	AV av = (AV )SvRV (val);
		1617	int i, len = av_len (av) + 1;
		1618	HV *stash = gv_stashsv (tag, 0);
		1619	SV *sv;
		1620
		1621	if (!stash)
		1622	ERR ("cannot decode perl-object (package does not exist)");
		1623
		1624	GV *method = gv_fetchmethod_autoload (stash, "THAW", 0);
		1625
		1626	if (!method)
		1627	ERR ("cannot decode perl-object (package does not have a THAW method)");
		1628
		1629	dSP;
		1630
		1631	ENTER; SAVETMPS;
		1632	PUSHMARK (SP);
		1633	EXTEND (SP, len + 2);
		1634	// we re-bless the reference to get overload and other niceties right
		1635	PUSHs (tag);
		1636	PUSHs (sv_json);
		1637
		1638	for (i = 0; i < len; ++i)
		1639	PUSHs (*av_fetch (av, i, 1));
		1640
		1641	PUTBACK;
		1642	call_sv ((SV *)GvCV (method), G_SCALAR);
		1643	SPAGAIN;
		1644
		1645	SvREFCNT_dec (tag);
		1646	SvREFCNT_dec (val);
		1647	sv = SvREFCNT_inc (POPs);
		1648
		1649	PUTBACK;
		1650
		1651	FREETMPS; LEAVE;
		1652
		1653	return sv;
		1654	}
		1655
		1656	fail:
		1657	SvREFCNT_dec (tag);
		1658	SvREFCNT_dec (val);
		1659	return 0;
		1660	}
		1661
		1662	static SV *
1346	decode_sv (dec_t *dec)	1663	decode_sv (dec_t *dec)
1347	{	1664	{
1348	// the beauty of JSON: you need exactly one character lookahead	1665	// the beauty of JSON: you need exactly one character lookahead
1349	// to parse everything.	1666	// to parse everything.
1350	switch (*dec->cur)	1667	switch (*dec->cur)
1351	{	1668	{
1352	case '"': ++dec->cur; return decode_str (dec);	1669	case '"': ++dec->cur; return decode_str (dec);
1353	case '[': ++dec->cur; return decode_av (dec);	1670	case '[': ++dec->cur; return decode_av (dec);
1354	case '{': ++dec->cur; return decode_hv (dec);	1671	case '{': ++dec->cur; return decode_hv (dec);
		1672	case '(': return decode_tag (dec);
1355		1673
1356	case '-':	1674	case '-':
1357	case '0': case '1': case '2': case '3': case '4':	1675	case '0': case '1': case '2': case '3': case '4':
1358	case '5': case '6': case '7': case '8': case '9':	1676	case '5': case '6': case '7': case '8': case '9':
1359	return decode_num (dec);	1677	return decode_num (dec);
1360		1678
		1679	case 'f':
		1680	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))
		1681	{
		1682	dec->cur += 5;
		1683
		1684	if (expect_false (!dec->json.v_false))
		1685	dec->json.v_false = GET_BOOL (false);
		1686
		1687	return newSVsv (dec->json.v_false);
		1688	}
		1689	else
		1690	ERR ("'false' expected");
		1691
		1692	break;
		1693
1361	case 't':	1694	case 't':
1362	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))	1695	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))
1363	{	1696	{
1364	dec->cur += 4;	1697	dec->cur += 4;
1365	#if JSON_SLOW	1698
1366	json_true = get_bool ("JSON::XS::true");	1699	if (expect_false (!dec->json.v_true))
1367	#endif	1700	dec->json.v_true = GET_BOOL (true);
		1701
1368	return newSVsv (json_true);	1702	return newSVsv (dec->json.v_true);
1369	}	1703	}
1370	else	1704	else
1371	ERR ("'true' expected");	1705	ERR ("'true' expected");
1372
1373	break;
1374
1375	case 'f':
1376	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))
1377	{
1378	dec->cur += 5;
1379	#if JSON_SLOW
1380	json_false = get_bool ("JSON::XS::false");
1381	#endif
1382	return newSVsv (json_false);
1383	}
1384	else
1385	ERR ("'false' expected");
1386		1706
1387	break;	1707	break;
1388		1708
1389	case 'n':	1709	case 'n':
1390	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "null", 4))	1710	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "null", 4))
…		…
1396	ERR ("'null' expected");	1716	ERR ("'null' expected");
1397		1717
1398	break;	1718	break;
1399		1719
1400	default:	1720	default:
1401	ERR ("malformed JSON string, neither array, object, number, string or atom");	1721	ERR ("malformed JSON string, neither tag, array, object, number, string or atom");
1402	break;	1722	break;
1403	}	1723	}
1404		1724
1405	fail:	1725	fail:
1406	return 0;	1726	return 0;
…		…
1408		1728
1409	static SV *	1729	static SV *
1410	decode_json (SV string, JSON json, STRLEN *offset_return)	1730	decode_json (SV string, JSON json, STRLEN *offset_return)
1411	{	1731	{
1412	dec_t dec;	1732	dec_t dec;
1413	STRLEN offset;
1414	SV *sv;	1733	SV *sv;
1415		1734
		1735	/* work around bugs in 5.10 where manipulating magic values
		1736	* makes perl ignore the magic in subsequent accesses.
		1737	* also make a copy of non-PV values, to get them into a clean
		1738	* state (SvPV should do that, but it's buggy, see below).
		1739	*
		1740	* SvIsCOW_shared_hash works around a bug in perl (possibly 5.16),
		1741	* as reported by Reini Urban.
		1742	*/
1416	SvGETMAGIC (string);	1743	/SvGETMAGIC (string);/
		1744	if (SvMAGICAL (string) \|\| !SvPOK (string) \|\| SvIsCOW_shared_hash (string))
		1745	string = sv_2mortal (newSVsv (string));
		1746
1417	SvUPGRADE (string, SVt_PV);	1747	SvUPGRADE (string, SVt_PV);
1418		1748
1419	/* work around a bug in perl 5.10, which causes SvCUR to fail an	1749	/* work around a bug in perl 5.10, which causes SvCUR to fail an
1420	* assertion with -DDEBUGGING, although SvCUR is documented to	1750	* assertion with -DDEBUGGING, although SvCUR is documented to
1421	* return the xpv_cur field which certainly exists after upgrading.	1751	* return the xpv_cur field which certainly exists after upgrading.
1422	* according to nicholas clark, calling SvPOK fixes this.	1752	* according to nicholas clark, calling SvPOK fixes this.
		1753	* But it doesn't fix it, so try another workaround, call SvPV_nolen
		1754	* and hope for the best.
		1755	* Damnit, SvPV_nolen still trips over yet another assertion. This
		1756	* assertion business is seriously broken, try yet another workaround
		1757	* for the broken -DDEBUGGING.
1423	*/	1758	*/
1424	SvPOK (string);	1759	{
		1760	#ifdef DEBUGGING
		1761	STRLEN offset = SvOK (string) ? sv_len (string) : 0;
		1762	#else
		1763	STRLEN offset = SvCUR (string);
		1764	#endif
1425		1765
1426	if (SvCUR (string) > json->max_size && json->max_size)	1766	if (offset > json->max_size && json->max_size)
1427	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",	1767	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",
1428	(unsigned long)SvCUR (string), (unsigned long)json->max_size);	1768	(unsigned long)SvCUR (string), (unsigned long)json->max_size);
		1769	}
1429		1770
1430	if (json->flags & F_UTF8)	1771	if (DECODE_WANTS_OCTETS (json))
1431	sv_utf8_downgrade (string, 0);	1772	sv_utf8_downgrade (string, 0);
1432	else	1773	else
1433	sv_utf8_upgrade (string);	1774	sv_utf8_upgrade (string);
1434		1775
1435	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP	1776	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP
…		…
1446	*dec.end = 0; // this should basically be a nop, too, but make sure it's there	1787	*dec.end = 0; // this should basically be a nop, too, but make sure it's there
1447		1788
1448	decode_ws (&dec);	1789	decode_ws (&dec);
1449	sv = decode_sv (&dec);	1790	sv = decode_sv (&dec);
1450		1791
1451	if (!(offset_return \|\| !sv))	1792	if (offset_return)
		1793	*offset_return = dec.cur - SvPVX (string);
		1794	else if (sv)
1452	{	1795	{
1453	// check for trailing garbage	1796	// check for trailing garbage
1454	decode_ws (&dec);	1797	decode_ws (&dec);
1455		1798
1456	if (*dec.cur)	1799	if (dec.cur != dec.end)
1457	{	1800	{
1458	dec.err = "garbage after JSON object";	1801	dec.err = "garbage after JSON object";
1459	SvREFCNT_dec (sv);	1802	SvREFCNT_dec (sv);
1460	sv = 0;	1803	sv = 0;
1461	}	1804	}
1462	}
1463
1464	if (offset_return \|\| !sv)
1465	{
1466	offset = dec.json.flags & F_UTF8
1467	? dec.cur - SvPVX (string)
1468	: utf8_distance (dec.cur, SvPVX (string));
1469
1470	if (offset_return)
1471	*offset_return = offset;
1472	}	1805	}
1473		1806
1474	if (!sv)	1807	if (!sv)
1475	{	1808	{
1476	SV *uni = sv_newmortal ();	1809	SV *uni = sv_newmortal ();
…		…
1482	SAVEVPTR (PL_curcop);	1815	SAVEVPTR (PL_curcop);
1483	PL_curcop = &cop;	1816	PL_curcop = &cop;
1484	pv_uni_display (uni, dec.cur, dec.end - dec.cur, 20, UNI_DISPLAY_QQ);	1817	pv_uni_display (uni, dec.cur, dec.end - dec.cur, 20, UNI_DISPLAY_QQ);
1485	LEAVE;	1818	LEAVE;
1486		1819
1487	croak ("%s, at character offset %d [\"%s\"]",	1820	croak ("%s, at character offset %d (before \"%s\")",
1488	dec.err,	1821	dec.err,
1489	(int)offset,	1822	(int)ptr_to_index (string, dec.cur),
1490	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");	1823	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");
1491	}	1824	}
1492		1825
1493	sv = sv_2mortal (sv);	1826	sv = sv_2mortal (sv);
1494		1827
1495	if (!(dec.json.flags & F_ALLOW_NONREF) && !SvROK (sv))	1828	if (!(dec.json.flags & F_ALLOW_NONREF) && json_nonref (sv))
1496	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");	1829	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");
1497		1830
1498	return sv;	1831	return sv;
1499	}	1832	}
1500		1833
…		…
1504	static void	1837	static void
1505	incr_parse (JSON *self)	1838	incr_parse (JSON *self)
1506	{	1839	{
1507	const char *p = SvPVX (self->incr_text) + self->incr_pos;	1840	const char *p = SvPVX (self->incr_text) + self->incr_pos;
1508		1841
		1842	// the state machine here is a bit convoluted and could be simplified a lot
		1843	// but this would make it slower, so...
		1844
1509	for (;;)	1845	for (;;)
1510	{	1846	{
1511	//printf ("loop pod %d p<%c><%s>, mode %d nest %d\n", p - SvPVX (self->incr_text), p, p, self->incr_mode, self->incr_nest);//D
1512	switch (self->incr_mode)	1847	switch (self->incr_mode)
1513	{	1848	{
		1849	// reached end of a scalar, see if we are inside a nested structure or not
		1850	end_of_scalar:
		1851	self->incr_mode = INCR_M_JSON;
		1852
		1853	if (self->incr_nest) // end of a scalar inside array, object or tag
		1854	goto incr_m_json;
		1855	else // end of scalar outside structure, json text ends here
		1856	goto interrupt;
		1857
1514	// only used for intiial whitespace skipping	1858	// only used for initial whitespace skipping
1515	case INCR_M_WS:	1859	case INCR_M_WS:
1516	for (;;)	1860	for (;;)
1517	{	1861	{
1518	if (*p > 0x20)	1862	if (*p > 0x20)
1519	{	1863	{
		1864	if (*p == '#')
		1865	{
		1866	self->incr_mode = INCR_M_C0;
		1867	goto incr_m_c;
		1868	}
		1869	else
		1870	{
1520	self->incr_mode = INCR_M_JSON;	1871	self->incr_mode = INCR_M_JSON;
1521	goto incr_m_json;	1872	goto incr_m_json;
		1873	}
1522	}	1874	}
1523	else if (!*p)	1875	else if (!*p)
1524	goto interrupt;	1876	goto interrupt;
1525		1877
1526	++p;	1878	++p;
…		…
1532	goto interrupt;	1884	goto interrupt;
1533		1885
1534	++p;	1886	++p;
1535	self->incr_mode = INCR_M_STR;	1887	self->incr_mode = INCR_M_STR;
1536	goto incr_m_str;	1888	goto incr_m_str;
		1889
		1890	// inside #-style comments
		1891	case INCR_M_C0:
		1892	case INCR_M_C1:
		1893	incr_m_c:
		1894	for (;;)
		1895	{
		1896	if (*p == '\n')
		1897	{
		1898	self->incr_mode = self->incr_mode == INCR_M_C0 ? INCR_M_WS : INCR_M_JSON;
		1899	break;
		1900	}
		1901	else if (!*p)
		1902	goto interrupt;
		1903
		1904	++p;
		1905	}
		1906
		1907	break;
		1908
		1909	// inside true/false/null
		1910	case INCR_M_TFN:
		1911	incr_m_tfn:
		1912	for (;;)
		1913	switch (*p++)
		1914	{
		1915	case 'r': case 'u': case 'e': // tRUE, falsE, nUll
		1916	case 'a': case 'l': case 's': // fALSe, nuLL
		1917	// allowed
		1918	break;
		1919
		1920	default:
		1921	--p;
		1922	goto end_of_scalar;
		1923	}
		1924
		1925	// inside a number
		1926	case INCR_M_NUM:
		1927	incr_m_num:
		1928	for (;;)
		1929	switch (*p++)
		1930	{
		1931	case 'e': case 'E': case '.': case '+':
		1932	case '-':
		1933	case '0': case '1': case '2': case '3': case '4':
		1934	case '5': case '6': case '7': case '8': case '9':
		1935	// allowed
		1936	break;
		1937
		1938	default:
		1939	--p;
		1940	goto end_of_scalar;
		1941	}
1537		1942
1538	// inside a string	1943	// inside a string
1539	case INCR_M_STR:	1944	case INCR_M_STR:
1540	incr_m_str:	1945	incr_m_str:
1541	for (;;)	1946	for (;;)
1542	{	1947	{
1543	if (*p == '"')	1948	if (*p == '"')
1544	{	1949	{
1545	++p;	1950	++p;
1546	self->incr_mode = INCR_M_JSON;
1547
1548	if (!self->incr_nest)
1549	goto interrupt;
1550
1551	goto incr_m_json;	1951	goto end_of_scalar;
1552	}	1952	}
1553	else if (*p == '\\')	1953	else if (*p == '\\')
1554	{	1954	{
1555	++p; // "virtually" consumes character after \	1955	++p; // "virtually" consumes character after \
1556		1956
…		…
1586	--p; // do not eat the whitespace, let the next round do it	1986	--p; // do not eat the whitespace, let the next round do it
1587	goto interrupt;	1987	goto interrupt;
1588	}	1988	}
1589	break;	1989	break;
1590		1990
		1991	// the following three blocks handle scalars. this makes the parser
		1992	// more strict than required inside arrays or objects, and could
		1993	// be moved to a special case on the toplevel (except strings)
		1994	case 't':
		1995	case 'f':
		1996	case 'n':
		1997	self->incr_mode = INCR_M_TFN;
		1998	goto incr_m_tfn;
		1999
		2000	case '-':
		2001	case '0': case '1': case '2': case '3': case '4':
		2002	case '5': case '6': case '7': case '8': case '9':
		2003	self->incr_mode = INCR_M_NUM;
		2004	goto incr_m_num;
		2005
1591	case '"':	2006	case '"':
1592	self->incr_mode = INCR_M_STR;	2007	self->incr_mode = INCR_M_STR;
1593	goto incr_m_str;	2008	goto incr_m_str;
1594		2009
1595	case '[':	2010	case '[':
1596	case '{':	2011	case '{':
		2012	case '(':
1597	if (++self->incr_nest > self->max_depth)	2013	if (++self->incr_nest > self->max_depth)
1598	croak (ERR_NESTING_EXCEEDED);	2014	croak (ERR_NESTING_EXCEEDED);
1599	break;	2015	break;
1600		2016
1601	case ']':	2017	case ']':
1602	case '}':	2018	case '}':
1603	if (!--self->incr_nest)	2019	if (--self->incr_nest <= 0)
1604	goto interrupt;	2020	goto interrupt;
		2021	break;
		2022
		2023	case ')':
		2024	--self->incr_nest;
		2025	break;
		2026
		2027	case '#':
		2028	self->incr_mode = INCR_M_C1;
		2029	goto incr_m_c;
1605	}	2030	}
1606	}	2031	}
1607	}	2032	}
1608		2033
1609	modechange:	2034	modechange:
1610	;	2035	;
1611	}	2036	}
1612		2037
1613	interrupt:	2038	interrupt:
1614	self->incr_pos = p - SvPVX (self->incr_text);	2039	self->incr_pos = p - SvPVX (self->incr_text);
		2040	//printf ("interrupt<%.*s>\n", self->incr_pos, SvPVX(self->incr_text));//D
1615	//printf ("return pos %d mode %d nest %d\n", self->incr_pos, self->incr_mode, self->incr_nest);//D	2041	//printf ("return pos %d mode %d nest %d\n", self->incr_pos, self->incr_mode, self->incr_nest);//D
1616	}	2042	}
1617		2043
1618	/////////////////////////////////////////////////////////////////////////////	2044	/////////////////////////////////////////////////////////////////////////////
1619	// XS interface functions	2045	// XS interface functions
…		…
1629	i >= '0' && i <= '9' ? i - '0'	2055	i >= '0' && i <= '9' ? i - '0'
1630	: i >= 'a' && i <= 'f' ? i - 'a' + 10	2056	: i >= 'a' && i <= 'f' ? i - 'a' + 10
1631	: i >= 'A' && i <= 'F' ? i - 'A' + 10	2057	: i >= 'A' && i <= 'F' ? i - 'A' + 10
1632	: -1;	2058	: -1;
1633		2059
1634	json_stash = gv_stashpv ("JSON::XS" , 1);	2060	json_stash = gv_stashpv ("JSON::XS" , 1);
1635	json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1);	2061	bool_stash = gv_stashpv ("Types::Serialiser::Boolean", 1);
1636
1637	json_true = get_bool ("JSON::XS::true");
1638	json_false = get_bool ("JSON::XS::false");	2062	bool_false = get_bool ("Types::Serialiser::false");
		2063	bool_true = get_bool ("Types::Serialiser::true");
		2064
		2065	sv_json = newSVpv ("JSON", 0);
		2066	SvREADONLY_on (sv_json);
		2067
		2068	CvNODEBUG_on (get_cv ("JSON::XS::incr_text", 0)); /* the debugger completely breaks lvalue subs */
1639	}	2069	}
1640		2070
1641	PROTOTYPES: DISABLE	2071	PROTOTYPES: DISABLE
1642		2072
1643	void CLONE (...)	2073	void CLONE (...)
1644	CODE:	2074	CODE:
		2075	// as long as these writes are atomic, the race should not matter
		2076	// as existing threads either already use 0, or use the old value,
		2077	// which is sitll correct for the initial thread.
1645	json_stash = 0;	2078	json_stash = 0;
1646	json_boolean_stash = 0;	2079	bool_stash = 0;
		2080	bool_false = 0;
		2081	bool_true = 0;
1647		2082
1648	void new (char *klass)	2083	void new (char *klass)
1649	PPCODE:	2084	PPCODE:
1650	{	2085	{
1651	SV *pv = NEWSV (0, sizeof (JSON));	2086	SV *pv = NEWSV (0, sizeof (JSON));
1652	SvPOK_only (pv);	2087	SvPOK_only (pv);
1653	json_init ((JSON *)SvPVX (pv));	2088	json_init ((JSON *)SvPVX (pv));
1654	XPUSHs (sv_2mortal (sv_bless (	2089	XPUSHs (sv_2mortal (sv_bless (
1655	newRV_noinc (pv),	2090	newRV_noinc (pv),
1656	strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1)	2091	strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1)
1657	)));	2092	)));
1658	}	2093	}
		2094
		2095	void boolean_values (JSON self, SV v_false = 0, SV *v_true = 0)
		2096	PPCODE:
		2097	self->v_false = newSVsv (v_false);
		2098	self->v_true = newSVsv (v_true);
		2099	XPUSHs (ST (0));
		2100
		2101	void get_boolean_values (JSON *self)
		2102	PPCODE:
		2103	if (self->v_false && self->v_true)
		2104	{
		2105	EXTEND (SP, 2);
		2106	PUSHs (self->v_false);
		2107	PUSHs (self->v_true);
		2108	}
1659		2109
1660	void ascii (JSON *self, int enable = 1)	2110	void ascii (JSON *self, int enable = 1)
1661	ALIAS:	2111	ALIAS:
1662	ascii = F_ASCII	2112	ascii = F_ASCII
1663	latin1 = F_LATIN1	2113	latin1 = F_LATIN1
…		…
1671	shrink = F_SHRINK	2121	shrink = F_SHRINK
1672	allow_blessed = F_ALLOW_BLESSED	2122	allow_blessed = F_ALLOW_BLESSED
1673	convert_blessed = F_CONV_BLESSED	2123	convert_blessed = F_CONV_BLESSED
1674	relaxed = F_RELAXED	2124	relaxed = F_RELAXED
1675	allow_unknown = F_ALLOW_UNKNOWN	2125	allow_unknown = F_ALLOW_UNKNOWN
		2126	allow_tags = F_ALLOW_TAGS
1676	PPCODE:	2127	PPCODE:
1677	{	2128	{
1678	if (enable)	2129	if (enable)
1679	self->flags \|= ix;	2130	self->flags \|= ix;
1680	else	2131	else
…		…
1696	get_shrink = F_SHRINK	2147	get_shrink = F_SHRINK
1697	get_allow_blessed = F_ALLOW_BLESSED	2148	get_allow_blessed = F_ALLOW_BLESSED
1698	get_convert_blessed = F_CONV_BLESSED	2149	get_convert_blessed = F_CONV_BLESSED
1699	get_relaxed = F_RELAXED	2150	get_relaxed = F_RELAXED
1700	get_allow_unknown = F_ALLOW_UNKNOWN	2151	get_allow_unknown = F_ALLOW_UNKNOWN
		2152	get_allow_tags = F_ALLOW_TAGS
1701	PPCODE:	2153	PPCODE:
1702	XPUSHs (boolSV (self->flags & ix));	2154	XPUSHs (boolSV (self->flags & ix));
1703		2155
1704	void max_depth (JSON *self, U32 max_depth = 0x80000000UL)	2156	void max_depth (JSON *self, U32 max_depth = 0x80000000UL)
1705	PPCODE:	2157	PPCODE:
…		…
1733	}	2185	}
1734		2186
1735	void filter_json_single_key_object (JSON self, SV key, SV *cb = &PL_sv_undef)	2187	void filter_json_single_key_object (JSON self, SV key, SV *cb = &PL_sv_undef)
1736	PPCODE:	2188	PPCODE:
1737	{	2189	{
1738	if (!self->cb_sk_object)	2190	if (!self->cb_sk_object)
1739	self->cb_sk_object = newHV ();	2191	self->cb_sk_object = newHV ();
1740		2192
1741	if (SvOK (cb))	2193	if (SvOK (cb))
1742	hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0);	2194	hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0);
1743	else	2195	else
…		…
1754	XPUSHs (ST (0));	2206	XPUSHs (ST (0));
1755	}	2207	}
1756		2208
1757	void encode (JSON self, SV scalar)	2209	void encode (JSON self, SV scalar)
1758	PPCODE:	2210	PPCODE:
1759	XPUSHs (encode_json (scalar, self));	2211	PUTBACK; XPUSHs (encode_json (scalar, self));
1760		2212
1761	void decode (JSON self, SV jsonstr)	2213	void decode (JSON self, SV jsonstr)
1762	PPCODE:	2214	PPCODE:
1763	XPUSHs (decode_json (jsonstr, self, 0));	2215	PUTBACK; XPUSHs (decode_json (jsonstr, self, 0));
1764		2216
1765	void decode_prefix (JSON self, SV jsonstr)	2217	void decode_prefix (JSON self, SV jsonstr)
1766	PPCODE:	2218	PPCODE:
1767	{	2219	{
		2220	SV *sv;
1768	STRLEN offset;	2221	STRLEN offset;
		2222	PUTBACK; sv = decode_json (jsonstr, self, &offset);
1769	EXTEND (SP, 2);	2223	EXTEND (SP, 2);
1770	PUSHs (decode_json (jsonstr, self, &offset));	2224	PUSHs (sv);
1771	PUSHs (sv_2mortal (newSVuv (offset)));	2225	PUSHs (sv_2mortal (newSVuv (ptr_to_index (jsonstr, SvPV_nolen (jsonstr) + offset))));
1772	}	2226	}
1773		2227
1774	void incr_parse (JSON self, SV jsonstr = 0)	2228	void incr_parse (JSON self, SV jsonstr = 0)
1775	PPCODE:	2229	PPCODE:
1776	{	2230	{
1777	if (!self->incr_text)	2231	if (!self->incr_text)
1778	self->incr_text = newSVpvn ("", 0);	2232	self->incr_text = newSVpvn ("", 0);
		2233
		2234	/* if utf8-ness doesn't match the decoder, need to upgrade/downgrade */
		2235	if (!DECODE_WANTS_OCTETS (self) == !SvUTF8 (self->incr_text))
		2236	if (DECODE_WANTS_OCTETS (self))
		2237	{
		2238	if (self->incr_pos)
		2239	self->incr_pos = utf8_length ((U8 *)SvPVX (self->incr_text),
		2240	(U8 *)SvPVX (self->incr_text) + self->incr_pos);
		2241
		2242	sv_utf8_downgrade (self->incr_text, 0);
		2243	}
		2244	else
		2245	{
		2246	sv_utf8_upgrade (self->incr_text);
		2247
		2248	if (self->incr_pos)
		2249	self->incr_pos = utf8_hop ((U8 *)SvPVX (self->incr_text), self->incr_pos)
		2250	- (U8 *)SvPVX (self->incr_text);
		2251	}
1779		2252
1780	// append data, if any	2253	// append data, if any
1781	if (jsonstr)	2254	if (jsonstr)
1782	{	2255	{
		2256	/* make sure both strings have same encoding */
1783	if (SvUTF8 (jsonstr) && !SvUTF8 (self->incr_text))	2257	if (SvUTF8 (jsonstr) != SvUTF8 (self->incr_text))
		2258	if (SvUTF8 (jsonstr))
		2259	sv_utf8_downgrade (jsonstr, 0);
1784	{	2260	else
1785	/* utf-8-ness differs, need to upgrade */
1786	sv_utf8_upgrade (self->incr_text);	2261	sv_utf8_upgrade (jsonstr);
1787		2262
1788	if (self->incr_pos)	2263	/* and then just blindly append */
1789	self->incr_pos = utf8_hop ((U8 *)SvPVX (self->incr_text), self->incr_pos)
1790	- (U8 *)SvPVX (self->incr_text);
1791	}
1792
1793	{	2264	{
1794	STRLEN len;	2265	STRLEN len;
1795	const char *str = SvPV (jsonstr, len);	2266	const char *str = SvPV (jsonstr, len);
1796	SvGROW (self->incr_text, SvCUR (self->incr_text) + len + 1);	2267	STRLEN cur = SvCUR (self->incr_text);
		2268
		2269	if (SvLEN (self->incr_text) - cur <= len)
		2270	json_sv_grow (self->incr_text, cur, len);
		2271
1797	Move (str, SvEND (self->incr_text), len, char);	2272	Move (str, SvEND (self->incr_text), len, char);
1798	SvCUR_set (self->incr_text, SvCUR (self->incr_text) + len);	2273	SvCUR_set (self->incr_text, SvCUR (self->incr_text) + len);
1799	*SvEND (self->incr_text) = 0; // this should basically be a nop, too, but make sure it's there	2274	*SvEND (self->incr_text) = 0; // this should basically be a nop, too, but make sure it's there
1800	}	2275	}
1801	}	2276	}
1802		2277
1803	if (GIMME_V != G_VOID)	2278	if (GIMME_V != G_VOID)
1804	do	2279	do
1805	{	2280	{
		2281	SV *sv;
1806	STRLEN offset;	2282	STRLEN offset;
1807		2283
1808	if (!INCR_DONE (self))	2284	if (!INCR_DONE (self))
1809	{	2285	{
1810	incr_parse (self);	2286	incr_parse (self);
…		…
1812	if (self->incr_pos > self->max_size && self->max_size)	2288	if (self->incr_pos > self->max_size && self->max_size)
1813	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",	2289	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",
1814	(unsigned long)self->incr_pos, (unsigned long)self->max_size);	2290	(unsigned long)self->incr_pos, (unsigned long)self->max_size);
1815		2291
1816	if (!INCR_DONE (self))	2292	if (!INCR_DONE (self))
		2293	{
		2294	// as an optimisation, do not accumulate white space in the incr buffer
		2295	if (self->incr_mode == INCR_M_WS && self->incr_pos)
		2296	{
		2297	self->incr_pos = 0;
		2298	SvCUR_set (self->incr_text, 0);
		2299	}
		2300
1817	break;	2301	break;
		2302	}
1818	}	2303	}
1819		2304
1820	XPUSHs (decode_json (self->incr_text, self, &offset));	2305	PUTBACK; sv = decode_json (self->incr_text, self, &offset);
		2306	XPUSHs (sv);
1821		2307
1822	sv_chop (self->incr_text, SvPV_nolen (self->incr_text) + offset);
1823	self->incr_pos -= offset;	2308	self->incr_pos -= offset;
1824	self->incr_nest = 0;	2309	self->incr_nest = 0;
1825	self->incr_mode = 0;	2310	self->incr_mode = 0;
		2311
		2312	sv_chop (self->incr_text, SvPVX (self->incr_text) + offset);
1826	}	2313	}
1827	while (GIMME_V == G_ARRAY);	2314	while (GIMME_V == G_ARRAY);
1828	}	2315	}
1829		2316
1830	SV incr_text (JSON self)	2317	SV incr_text (JSON self)
…		…
1861	self->incr_mode = 0;	2348	self->incr_mode = 0;
1862	}	2349	}
1863		2350
1864	void DESTROY (JSON *self)	2351	void DESTROY (JSON *self)
1865	CODE:	2352	CODE:
		2353	SvREFCNT_dec (self->v_false);
		2354	SvREFCNT_dec (self->v_true);
1866	SvREFCNT_dec (self->cb_sk_object);	2355	SvREFCNT_dec (self->cb_sk_object);
1867	SvREFCNT_dec (self->cb_object);	2356	SvREFCNT_dec (self->cb_object);
1868	SvREFCNT_dec (self->incr_text);	2357	SvREFCNT_dec (self->incr_text);
1869		2358
1870	PROTOTYPES: ENABLE	2359	PROTOTYPES: ENABLE
1871		2360
1872	void encode_json (SV *scalar)	2361	void encode_json (SV *scalar)
1873	ALIAS:
1874	to_json_ = 0
1875	encode_json = F_UTF8
1876	PPCODE:	2362	PPCODE:
1877	{	2363	{
1878	JSON json;	2364	JSON json;
1879	json_init (&json);	2365	json_init (&json);
1880	json.flags \|= ix;	2366	json.flags \|= F_UTF8;
1881	XPUSHs (encode_json (scalar, &json));	2367	PUTBACK; XPUSHs (encode_json (scalar, &json));
1882	}	2368	}
1883		2369
1884	void decode_json (SV *jsonstr)	2370	void decode_json (SV *jsonstr)
1885	ALIAS:
1886	from_json_ = 0
1887	decode_json = F_UTF8
1888	PPCODE:	2371	PPCODE:
1889	{	2372	{
1890	JSON json;	2373	JSON json;
1891	json_init (&json);	2374	json_init (&json);
1892	json.flags \|= ix;	2375	json.flags \|= F_UTF8;
1893	XPUSHs (decode_json (jsonstr, &json, 0));	2376	PUTBACK; XPUSHs (decode_json (jsonstr, &json, 0));
1894	}	2377	}
1895		2378
1896

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+Removed lines
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+Changed lines
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+Changed lines

Comparing JSON-XS/XS.xs (file contents): Revision 1.87 by root, Tue Jun 3 06:43:45 2008 UTC vs. Revision 1.137 by root, Sun Feb 24 04:21:05 2019 UTC

Diff Legend

Comparing JSON-XS/XS.xs (file contents):
Revision 1.87 by root, Tue Jun 3 06:43:45 2008 UTC vs.
Revision 1.137 by root, Sun Feb 24 04:21:05 2019 UTC