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

Comparing JSON-XS/XS.xs (file contents):
Revision 1.86 by root, Tue May 27 05:31:39 2008 UTC vs.
Revision 1.133 by root, Tue Aug 28 16:16:17 2018 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 32 // 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
79	INCR_M_STR, // inside string	101	INCR_M_STR, // inside string
80	INCR_M_BS, // inside backslash	102	INCR_M_BS, // inside backslash
		103	INCR_M_C0, // inside comment in initial whitespace sequence
		104	INCR_M_C1, // inside comment in other places
81	INCR_M_JSON // outside anything, count nesting	105	INCR_M_JSON // outside anything, count nesting
82	};	106	};
83		107
84	#define INCR_DONE(json) (!(json)->incr_nest && (json)->incr_mode == INCR_M_JSON)	108	#define INCR_DONE(json) ((json)->incr_nest <= 0 && (json)->incr_mode == INCR_M_JSON)
85		109
86	typedef struct {	110	typedef struct {
87	U32 flags;	111	U32 flags;
88	U32 max_depth;	112	U32 max_depth;
89	STRLEN max_size;	113	STRLEN max_size;
…		…
92	HV *cb_sk_object;	116	HV *cb_sk_object;
93		117
94	// for the incremental parser	118	// for the incremental parser
95	SV *incr_text; // the source text so far	119	SV *incr_text; // the source text so far
96	STRLEN incr_pos; // the current offset into the text	120	STRLEN incr_pos; // the current offset into the text
97	unsigned char incr_nest; // {[]}-nesting level	121	int incr_nest; // {[]}-nesting level
98	unsigned char incr_mode;	122	unsigned char incr_mode;
		123
		124	SV v_false, v_true;
99	} JSON;	125	} JSON;
100		126
101	INLINE void	127	INLINE void
102	json_init (JSON *json)	128	json_init (JSON *json)
103	{	129	{
…		…
121		147
122	INLINE void	148	INLINE void
123	shrink (SV *sv)	149	shrink (SV *sv)
124	{	150	{
125	sv_utf8_downgrade (sv, 1);	151	sv_utf8_downgrade (sv, 1);
		152
126	if (SvLEN (sv) > SvCUR (sv) + 1)	153	if (SvLEN (sv) > SvCUR (sv) + 1)
127	{	154	{
128	#ifdef SvPV_shrink_to_cur	155	#ifdef SvPV_shrink_to_cur
129	SvPV_shrink_to_cur (sv);	156	SvPV_shrink_to_cur (sv);
130	#elif defined (SvPV_renew)	157	#elif defined (SvPV_renew)
131	SvPV_renew (sv, SvCUR (sv) + 1);	158	SvPV_renew (sv, SvCUR (sv) + 1);
132	#endif	159	#endif
133	}	160	}
134	}	161	}
135		162
		163	/* adds two STRLENs together, slow, and with paranoia */
		164	STRLEN
		165	strlen_sum (STRLEN l1, STRLEN l2)
		166	{
		167	size_t sum = l1 + l2;
		168
		169	if (sum < (size_t)l2 \|\| sum != (size_t)(STRLEN)sum)
		170	croak ("JSON::XS: string size overflow");
		171
		172	return sum;
		173	}
		174
		175	/* similar to SvGROW, but somewhat safer and guarantees exponential realloc strategy */
		176	static char *
		177	json_sv_grow (SV *sv, size_t len1, size_t len2)
		178	{
		179	len1 = strlen_sum (len1, len2);
		180	len1 = strlen_sum (len1, len1 >> 1);
		181
		182	if (len1 > 4096 - 24)
		183	len1 = (len1 \| 4095) - 24;
		184
		185	return SvGROW (sv, len1);
		186	}
		187
136	// decode an utf-8 character and return it, or (UV)-1 in	188	// decode a utf-8 character and return it, or (UV)-1 in
137	// case of an error.	189	// case of an error.
138	// we special-case "safe" characters from U+80 .. U+7FF,	190	// we special-case "safe" characters from U+80 .. U+7FF,
139	// but use the very good perl function to parse anything else.	191	// but use the very good perl function to parse anything else.
140	// note that we never call this function for a ascii codepoints	192	// note that we never call this function for a ascii codepoints
141	INLINE UV	193	INLINE UV
…		…
174	*s++ = 0x80 \| ( ch & 0x3f);	226	*s++ = 0x80 \| ( ch & 0x3f);
175		227
176	return s;	228	return s;
177	}	229	}
178		230
		231	// convert offset pointer to character index, sv must be string
		232	static STRLEN
		233	ptr_to_index (SV sv, char offset)
		234	{
		235	return SvUTF8 (sv)
		236	? utf8_distance (offset, SvPVX (sv))
		237	: offset - SvPVX (sv);
		238	}
		239
		240	/////////////////////////////////////////////////////////////////////////////
		241	// fp hell
		242
		243	// scan a group of digits, and a trailing exponent
		244	static void
		245	json_atof_scan1 (const char s, NV accum, int *expo, int postdp, int maxdepth)
		246	{
		247	UV uaccum = 0;
		248	int eaccum = 0;
		249
		250	// if we recurse too deep, skip all remaining digits
		251	// to avoid a stack overflow attack
		252	if (expect_false (--maxdepth <= 0))
		253	while (((U8)*s - '0') < 10)
		254	++s;
		255
		256	for (;;)
		257	{
		258	U8 dig = (U8)*s - '0';
		259
		260	if (expect_false (dig >= 10))
		261	{
		262	if (dig == (U8)((U8)'.' - (U8)'0'))
		263	{
		264	++s;
		265	json_atof_scan1 (s, accum, expo, 1, maxdepth);
		266	}
		267	else if ((dig \| ' ') == 'e' - '0')
		268	{
		269	int exp2 = 0;
		270	int neg = 0;
		271
		272	++s;
		273
		274	if (*s == '-')
		275	{
		276	++s;
		277	neg = 1;
		278	}
		279	else if (*s == '+')
		280	++s;
		281
		282	while ((dig = (U8)*s - '0') < 10)
		283	exp2 = exp2 * 10 + *s++ - '0';
		284
		285	*expo += neg ? -exp2 : exp2;
		286	}
		287
		288	break;
		289	}
		290
		291	++s;
		292
		293	uaccum = uaccum * 10 + dig;
		294	++eaccum;
		295
		296	// if we have too many digits, then recurse for more
		297	// we actually do this for rather few digits
		298	if (uaccum >= (UV_MAX - 9) / 10)
		299	{
		300	if (postdp) *expo -= eaccum;
		301	json_atof_scan1 (s, accum, expo, postdp, maxdepth);
		302	if (postdp) *expo += eaccum;
		303
		304	break;
		305	}
		306	}
		307
		308	// this relies greatly on the quality of the pow ()
		309	// implementation of the platform, but a good
		310	// implementation is hard to beat.
		311	// (IEEE 754 conformant ones are required to be exact)
		312	if (postdp) *expo -= eaccum;
		313	accum += uaccum Perl_pow (10., *expo);
		314	*expo += eaccum;
		315	}
		316
		317	static NV
		318	json_atof (const char *s)
		319	{
		320	NV accum = 0.;
		321	int expo = 0;
		322	int neg = 0;
		323
		324	if (*s == '-')
		325	{
		326	++s;
		327	neg = 1;
		328	}
		329
		330	// a recursion depth of ten gives us >>500 bits
		331	json_atof_scan1 (s, &accum, &expo, 0, 10);
		332
		333	return neg ? -accum : accum;
		334	}
		335
		336	// target of scalar reference is bool? -1 == nope, 0 == false, 1 == true
		337	static int
		338	ref_bool_type (SV *sv)
		339	{
		340	svtype svt = SvTYPE (sv);
		341
		342	if (svt < SVt_PVAV)
		343	{
		344	STRLEN len = 0;
		345	char *pv = svt ? SvPV (sv, len) : 0;
		346
		347	if (len == 1)
		348	if (*pv == '1')
		349	return 1;
		350	else if (*pv == '0')
		351	return 0;
		352	}
		353
		354	return -1;
		355	}
		356
		357	// returns whether scalar is not a reference in the sense of allow_nonref
		358	static int
		359	json_nonref (SV *scalar)
		360	{
		361	if (!SvROK (scalar))
		362	return 1;
		363
		364	scalar = SvRV (scalar);
		365
		366	if (SvTYPE (scalar) >= SVt_PVMG)
		367	{
		368	if (SvSTASH (scalar) == bool_stash)
		369	return 1;
		370
		371	if (!SvOBJECT (scalar) && ref_bool_type (scalar) >= 0)
		372	return 1;
		373	}
		374
		375	return 0;
		376	}
		377
179	/////////////////////////////////////////////////////////////////////////////	378	/////////////////////////////////////////////////////////////////////////////
180	// encoder	379	// encoder
181		380
182	// structure used for encoding JSON	381	// structure used for encoding JSON
183	typedef struct	382	typedef struct
…		…
191	} enc_t;	390	} enc_t;
192		391
193	INLINE void	392	INLINE void
194	need (enc_t *enc, STRLEN len)	393	need (enc_t *enc, STRLEN len)
195	{	394	{
196	if (expect_false (enc->cur + len >= enc->end))	395	if (expect_false ((uintptr_t)(enc->end - enc->cur) < len))
197	{	396	{
198	STRLEN cur = enc->cur - SvPVX (enc->sv);	397	STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);
199	SvGROW (enc->sv, cur + len + 1);	398	char *buf = json_sv_grow (enc->sv, cur, len);
200	enc->cur = SvPVX (enc->sv) + cur;	399	enc->cur = buf + cur;
201	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;	400	enc->end = buf + SvLEN (enc->sv) - 1;
202	}	401	}
203	}	402	}
204		403
205	INLINE void	404	INLINE void
206	encode_ch (enc_t *enc, char ch)	405	encode_ch (enc_t *enc, char ch)
…		…
222		421
223	if (expect_true (ch >= 0x20 && ch < 0x80)) // most common case	422	if (expect_true (ch >= 0x20 && ch < 0x80)) // most common case
224	{	423	{
225	if (expect_false (ch == '"')) // but with slow exceptions	424	if (expect_false (ch == '"')) // but with slow exceptions
226	{	425	{
227	need (enc, len += 1);	426	need (enc, len + 1);
228	*enc->cur++ = '\\';	427	*enc->cur++ = '\\';
229	*enc->cur++ = '"';	428	*enc->cur++ = '"';
230	}	429	}
231	else if (expect_false (ch == '\\'))	430	else if (expect_false (ch == '\\'))
232	{	431	{
233	need (enc, len += 1);	432	need (enc, len + 1);
234	*enc->cur++ = '\\';	433	*enc->cur++ = '\\';
235	*enc->cur++ = '\\';	434	*enc->cur++ = '\\';
236	}	435	}
237	else	436	else
238	*enc->cur++ = ch;	437	*enc->cur++ = ch;
…		…
241	}	440	}
242	else	441	else
243	{	442	{
244	switch (ch)	443	switch (ch)
245	{	444	{
246	case '\010': need (enc, len += 1); enc->cur++ = '\\'; enc->cur++ = 'b'; ++str; break;	445	case '\010': need (enc, len + 1); enc->cur++ = '\\'; enc->cur++ = 'b'; ++str; break;
247	case '\011': need (enc, len += 1); enc->cur++ = '\\'; enc->cur++ = 't'; ++str; break;	446	case '\011': need (enc, len + 1); enc->cur++ = '\\'; enc->cur++ = 't'; ++str; break;
248	case '\012': need (enc, len += 1); enc->cur++ = '\\'; enc->cur++ = 'n'; ++str; break;	447	case '\012': need (enc, len + 1); enc->cur++ = '\\'; enc->cur++ = 'n'; ++str; break;
249	case '\014': need (enc, len += 1); enc->cur++ = '\\'; enc->cur++ = 'f'; ++str; break;	448	case '\014': need (enc, len + 1); enc->cur++ = '\\'; enc->cur++ = 'f'; ++str; break;
250	case '\015': need (enc, len += 1); enc->cur++ = '\\'; enc->cur++ = 'r'; ++str; break;	449	case '\015': need (enc, len + 1); enc->cur++ = '\\'; enc->cur++ = 'r'; ++str; break;
251		450
252	default:	451	default:
253	{	452	{
254	STRLEN clen;	453	STRLEN clen;
255	UV uch;	454	UV uch;
…		…
271	if (uch >= 0x10000UL)	470	if (uch >= 0x10000UL)
272	{	471	{
273	if (uch >= 0x110000UL)	472	if (uch >= 0x110000UL)
274	croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);	473	croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);
275		474
276	need (enc, len += 11);	475	need (enc, len + 11);
277	sprintf (enc->cur, "\\u%04x\\u%04x",	476	sprintf (enc->cur, "\\u%04x\\u%04x",
278	(int)((uch - 0x10000) / 0x400 + 0xD800),	477	(int)((uch - 0x10000) / 0x400 + 0xD800),
279	(int)((uch - 0x10000) % 0x400 + 0xDC00));	478	(int)((uch - 0x10000) % 0x400 + 0xDC00));
280	enc->cur += 12;	479	enc->cur += 12;
281	}	480	}
282	else	481	else
283	{	482	{
284	static char hexdigit [16] = "0123456789abcdef";
285	need (enc, len += 5);	483	need (enc, len + 5);
286	*enc->cur++ = '\\';	484	*enc->cur++ = '\\';
287	*enc->cur++ = 'u';	485	*enc->cur++ = 'u';
288	*enc->cur++ = hexdigit [ uch >> 12 ];	486	*enc->cur++ = PL_hexdigit [ uch >> 12 ];
289	*enc->cur++ = hexdigit [(uch >> 8) & 15];	487	*enc->cur++ = PL_hexdigit [(uch >> 8) & 15];
290	*enc->cur++ = hexdigit [(uch >> 4) & 15];	488	*enc->cur++ = PL_hexdigit [(uch >> 4) & 15];
291	*enc->cur++ = hexdigit [(uch >> 0) & 15];	489	*enc->cur++ = PL_hexdigit [(uch >> 0) & 15];
292	}	490	}
293		491
294	str += clen;	492	str += clen;
295	}	493	}
296	else if (enc->json.flags & F_LATIN1)	494	else if (enc->json.flags & F_LATIN1)
…		…
298	*enc->cur++ = uch;	496	*enc->cur++ = uch;
299	str += clen;	497	str += clen;
300	}	498	}
301	else if (is_utf8)	499	else if (is_utf8)
302	{	500	{
303	need (enc, len += clen);	501	need (enc, len + clen);
304	do	502	do
305	{	503	{
306	enc->cur++ = str++;	504	enc->cur++ = str++;
307	}	505	}
308	while (--clen);	506	while (--clen);
309	}	507	}
310	else	508	else
311	{	509	{
312	need (enc, len += UTF8_MAXBYTES - 1); // never more than 11 bytes needed	510	need (enc, len + UTF8_MAXBYTES - 1); // never more than 11 bytes needed
313	enc->cur = encode_utf8 (enc->cur, uch);	511	enc->cur = encode_utf8 (enc->cur, uch);
314	++str;	512	++str;
315	}	513	}
316	}	514	}
317	}	515	}
…		…
371		569
372	if (enc->indent >= enc->json.max_depth)	570	if (enc->indent >= enc->json.max_depth)
373	croak (ERR_NESTING_EXCEEDED);	571	croak (ERR_NESTING_EXCEEDED);
374		572
375	encode_ch (enc, '[');	573	encode_ch (enc, '[');
376		574
377	if (len >= 0)	575	if (len >= 0)
378	{	576	{
379	encode_nl (enc); ++enc->indent;	577	encode_nl (enc); ++enc->indent;
380		578
381	for (i = 0; i <= len; ++i)	579	for (i = 0; i <= len; ++i)
…		…
393	encode_comma (enc);	591	encode_comma (enc);
394	}	592	}
395		593
396	encode_nl (enc); --enc->indent; encode_indent (enc);	594	encode_nl (enc); --enc->indent; encode_indent (enc);
397	}	595	}
398		596
399	encode_ch (enc, ']');	597	encode_ch (enc, ']');
400	}	598	}
401		599
402	static void	600	static void
403	encode_hk (enc_t enc, HE he)	601	encode_hk (enc_t enc, HE he)
…		…
407	if (HeKLEN (he) == HEf_SVKEY)	605	if (HeKLEN (he) == HEf_SVKEY)
408	{	606	{
409	SV *sv = HeSVKEY (he);	607	SV *sv = HeSVKEY (he);
410	STRLEN len;	608	STRLEN len;
411	char *str;	609	char *str;
412		610
413	SvGETMAGIC (sv);	611	SvGETMAGIC (sv);
414	str = SvPV (sv, len);	612	str = SvPV (sv, len);
415		613
416	encode_str (enc, str, len, SvUTF8 (sv));	614	encode_str (enc, str, len, SvUTF8 (sv));
417	}	615	}
…		…
460		658
461	encode_ch (enc, '{');	659	encode_ch (enc, '{');
462		660
463	// for canonical output we have to sort by keys first	661	// for canonical output we have to sort by keys first
464	// actually, this is mostly due to the stupid so-called	662	// actually, this is mostly due to the stupid so-called
465	// security workaround added somewhere in 5.8.x.	663	// security workaround added somewhere in 5.8.x
466	// that randomises hash orderings	664	// that randomises hash orderings
467	if (enc->json.flags & F_CANONICAL)	665	if (enc->json.flags & F_CANONICAL && !SvRMAGICAL (hv))
468	{	666	{
469	int count = hv_iterinit (hv);	667	int count = hv_iterinit (hv);
470		668
471	if (SvMAGICAL (hv))	669	if (SvMAGICAL (hv))
472	{	670	{
…		…
483	}	681	}
484		682
485	if (count)	683	if (count)
486	{	684	{
487	int i, fast = 1;	685	int i, fast = 1;
488	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	686	HE *hes_stack [STACK_HES];
489	HE *hes = _alloca (count sizeof (HE));	687	HE **hes = hes_stack;
490	#else	688
491	HE *hes [count]; // if your compiler dies here, you need to enable C99 mode	689	// allocate larger arrays on the heap
492	#endif	690	if (count > STACK_HES)
		691	{
		692	SV sv = sv_2mortal (NEWSV (0, count sizeof (*hes)));
		693	hes = (HE **)SvPVX (sv);
		694	}
493		695
494	i = 0;	696	i = 0;
495	while ((he = hv_iternext (hv)))	697	while ((he = hv_iternext (hv)))
496	{	698	{
497	hes [i++] = he;	699	hes [i++] = he;
…		…
566	// encode objects, arrays and special \0=false and \1=true values.	768	// encode objects, arrays and special \0=false and \1=true values.
567	static void	769	static void
568	encode_rv (enc_t enc, SV sv)	770	encode_rv (enc_t enc, SV sv)
569	{	771	{
570	svtype svt;	772	svtype svt;
		773	GV *method;
571		774
572	SvGETMAGIC (sv);	775	SvGETMAGIC (sv);
573	svt = SvTYPE (sv);	776	svt = SvTYPE (sv);
574		777
575	if (expect_false (SvOBJECT (sv)))	778	if (expect_false (SvOBJECT (sv)))
576	{	779	{
577	HV *stash = !JSON_SLOW \|\| json_boolean_stash	780	HV *stash = SvSTASH (sv);
578	? json_boolean_stash
579	: gv_stashpv ("JSON::XS::Boolean", 1);
580		781
581	if (SvSTASH (sv) == stash)	782	if (stash == bool_stash)
582	{	783	{
583	if (SvIV (sv))
584	encode_str (enc, "true", 4, 0);	784	if (SvIV (sv)) encode_str (enc, "true" , 4, 0);
585	else
586	encode_str (enc, "false", 5, 0);	785	else encode_str (enc, "false", 5, 0);
587	}	786	}
		787	else if ((enc->json.flags & F_ALLOW_TAGS) && (method = gv_fetchmethod_autoload (stash, "FREEZE", 0)))
		788	{
		789	int count;
		790	dSP;
		791
		792	ENTER; SAVETMPS;
		793	SAVESTACK_POS ();
		794	PUSHMARK (SP);
		795	EXTEND (SP, 2);
		796	// we re-bless the reference to get overload and other niceties right
		797	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
		798	PUSHs (sv_json);
		799
		800	PUTBACK;
		801	count = call_sv ((SV *)GvCV (method), G_ARRAY);
		802	SPAGAIN;
		803
		804	// catch this surprisingly common error
		805	if (SvROK (TOPs) && SvRV (TOPs) == sv)
		806	croak ("%s::FREEZE method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
		807
		808	encode_ch (enc, '(');
		809	encode_ch (enc, '"');
		810	encode_str (enc, HvNAME (stash), HvNAMELEN (stash), HvNAMEUTF8 (stash));
		811	encode_ch (enc, '"');
		812	encode_ch (enc, ')');
		813	encode_ch (enc, '[');
		814
		815	while (count)
		816	{
		817	encode_sv (enc, SP[1 - count--]);
		818
		819	if (count)
		820	encode_ch (enc, ',');
		821	}
		822
		823	encode_ch (enc, ']');
		824
		825	FREETMPS; LEAVE;
		826	}
		827	else if ((enc->json.flags & F_CONV_BLESSED) && (method = gv_fetchmethod_autoload (stash, "TO_JSON", 0)))
		828	{
		829	dSP;
		830
		831	ENTER; SAVETMPS;
		832	PUSHMARK (SP);
		833	// we re-bless the reference to get overload and other niceties right
		834	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
		835
		836	// calling with G_SCALAR ensures that we always get a 1 return value
		837	PUTBACK;
		838	call_sv ((SV *)GvCV (method), G_SCALAR);
		839	SPAGAIN;
		840
		841	// catch this surprisingly common error
		842	if (SvROK (TOPs) && SvRV (TOPs) == sv)
		843	croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
		844
		845	sv = POPs;
		846	PUTBACK;
		847
		848	encode_sv (enc, sv);
		849
		850	FREETMPS; LEAVE;
		851	}
		852	else if (enc->json.flags & F_ALLOW_BLESSED)
		853	encode_str (enc, "null", 4, 0);
588	else	854	else
589	{
590	#if 0
591	if (0 && sv_derived_from (rv, "JSON::Literal"))
592	{
593	// not yet
594	}
595	#endif
596	if (enc->json.flags & F_CONV_BLESSED)
597	{
598	// we re-bless the reference to get overload and other niceties right
599	GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 0);
600
601	if (to_json)
602	{
603	dSP;
604
605	ENTER; SAVETMPS; PUSHMARK (SP);
606	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv)));
607
608	// calling with G_SCALAR ensures that we always get a 1 return value
609	PUTBACK;
610	call_sv ((SV *)GvCV (to_json), G_SCALAR);
611	SPAGAIN;
612
613	// catch this surprisingly common error
614	if (SvROK (TOPs) && SvRV (TOPs) == sv)
615	croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
616
617	sv = POPs;
618	PUTBACK;
619
620	encode_sv (enc, sv);
621
622	FREETMPS; LEAVE;
623	}
624	else if (enc->json.flags & F_ALLOW_BLESSED)
625	encode_str (enc, "null", 4, 0);
626	else
627	croak ("encountered object '%s', but neither allow_blessed enabled nor TO_JSON method available on it",
628	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
629	}
630	else if (enc->json.flags & F_ALLOW_BLESSED)
631	encode_str (enc, "null", 4, 0);
632	else
633	croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled",	855	croak ("encountered object '%s', but neither allow_blessed, convert_blessed nor allow_tags settings are enabled (or TO_JSON/FREEZE method missing)",
634	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	856	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
635	}
636	}	857	}
637	else if (svt == SVt_PVHV)	858	else if (svt == SVt_PVHV)
638	encode_hv (enc, (HV *)sv);	859	encode_hv (enc, (HV *)sv);
639	else if (svt == SVt_PVAV)	860	else if (svt == SVt_PVAV)
640	encode_av (enc, (AV *)sv);	861	encode_av (enc, (AV *)sv);
641	else if (svt < SVt_PVAV)	862	else if (svt < SVt_PVAV)
642	{	863	{
643	STRLEN len = 0;	864	int bool_type = ref_bool_type (sv);
644	char *pv = svt ? SvPV (sv, len) : 0;
645		865
646	if (len == 1 && *pv == '1')	866	if (bool_type == 1)
647	encode_str (enc, "true", 4, 0);	867	encode_str (enc, "true", 4, 0);
648	else if (len == 1 && *pv == '0')	868	else if (bool_type == 0)
649	encode_str (enc, "false", 5, 0);	869	encode_str (enc, "false", 5, 0);
650	else if (enc->json.flags & F_ALLOW_UNKNOWN)	870	else if (enc->json.flags & F_ALLOW_UNKNOWN)
651	encode_str (enc, "null", 4, 0);	871	encode_str (enc, "null", 4, 0);
652	else	872	else
653	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",	873	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",
…		…
716	}	936	}
717	else	937	else
718	{	938	{
719	// large integer, use the (rather slow) snprintf way.	939	// large integer, use the (rather slow) snprintf way.
720	need (enc, IVUV_MAXCHARS);	940	need (enc, IVUV_MAXCHARS);
721	enc->cur +=	941	enc->cur +=
722	SvIsUV(sv)	942	SvIsUV(sv)
723	? snprintf (enc->cur, IVUV_MAXCHARS, "%"UVuf, (UV)SvUVX (sv))	943	? snprintf (enc->cur, IVUV_MAXCHARS, "%"UVuf, (UV)SvUVX (sv))
724	: snprintf (enc->cur, IVUV_MAXCHARS, "%"IVdf, (IV)SvIVX (sv));	944	: snprintf (enc->cur, IVUV_MAXCHARS, "%"IVdf, (IV)SvIVX (sv));
725	}	945	}
726	}	946	}
727	else if (SvROK (sv))	947	else if (SvROK (sv))
728	encode_rv (enc, SvRV (sv));	948	encode_rv (enc, SvRV (sv));
729	else if (!SvOK (sv) \|\| enc->json.flags & F_ALLOW_UNKNOWN)	949	else if (!SvOK (sv) \|\| enc->json.flags & F_ALLOW_UNKNOWN)
730	encode_str (enc, "null", 4, 0);	950	encode_str (enc, "null", 4, 0);
731	else	951	else
732	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",	952	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, check your input data",
733	SvPV_nolen (sv), SvFLAGS (sv));	953	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));
734	}	954	}
735		955
736	static SV *	956	static SV *
737	encode_json (SV scalar, JSON json)	957	encode_json (SV scalar, JSON json)
738	{	958	{
739	enc_t enc;	959	enc_t enc;
740		960
741	if (!(json->flags & F_ALLOW_NONREF) && !SvROK (scalar))	961	if (!(json->flags & F_ALLOW_NONREF) && json_nonref (scalar))
742	croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");	962	croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");
743		963
744	enc.json = *json;	964	enc.json = *json;
745	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	965	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
746	enc.cur = SvPVX (enc.sv);	966	enc.cur = SvPVX (enc.sv);
…		…
750	: enc.json.flags & F_LATIN1 ? 0x000100UL	970	: enc.json.flags & F_LATIN1 ? 0x000100UL
751	: 0x110000UL;	971	: 0x110000UL;
752		972
753	SvPOK_only (enc.sv);	973	SvPOK_only (enc.sv);
754	encode_sv (&enc, scalar);	974	encode_sv (&enc, scalar);
		975	encode_nl (&enc);
755		976
756	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));	977	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));
757	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings	978	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings
758		979
759	if (!(enc.json.flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))	980	if (!(enc.json.flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))
…		…
939	else if (expect_true (ch >= 0x20 && ch < 0x80))	1160	else if (expect_true (ch >= 0x20 && ch < 0x80))
940	*cur++ = ch;	1161	*cur++ = ch;
941	else if (ch >= 0x80)	1162	else if (ch >= 0x80)
942	{	1163	{
943	STRLEN clen;	1164	STRLEN clen;
944	UV uch;
945		1165
946	--dec_cur;	1166	--dec_cur;
947		1167
948	uch = decode_utf8 (dec_cur, dec->end - dec_cur, &clen);	1168	decode_utf8 (dec_cur, dec->end - dec_cur, &clen);
949	if (clen == (STRLEN)-1)	1169	if (clen == (STRLEN)-1)
950	ERR ("malformed UTF-8 character in JSON string");	1170	ERR ("malformed UTF-8 character in JSON string");
951		1171
952	do	1172	do
953	cur++ = dec_cur++;	1173	cur++ = dec_cur++;
954	while (--clen);	1174	while (--clen);
955		1175
956	utf8 = 1;	1176	utf8 = 1;
957	}	1177	}
		1178	else if (ch == '\t' && dec->json.flags & F_RELAXED)
		1179	*cur++ = ch;
958	else	1180	else
959	{	1181	{
960	--dec_cur;	1182	--dec_cur;
961		1183
962	if (!ch)	1184	if (!ch)
…		…
970	{	1192	{
971	STRLEN len = cur - buf;	1193	STRLEN len = cur - buf;
972		1194
973	if (sv)	1195	if (sv)
974	{	1196	{
975	SvGROW (sv, SvCUR (sv) + len + 1);	1197	STRLEN cur = SvCUR (sv);
		1198
		1199	if (SvLEN (sv) - cur <= len)
		1200	json_sv_grow (sv, cur, len);
		1201
976	memcpy (SvPVX (sv) + SvCUR (sv), buf, len);	1202	memcpy (SvPVX (sv) + SvCUR (sv), buf, len);
977	SvCUR_set (sv, SvCUR (sv) + len);	1203	SvCUR_set (sv, SvCUR (sv) + len);
978	}	1204	}
979	else	1205	else
980	sv = newSVpvn (buf, len);	1206	sv = newSVpvn (buf, len);
…		…
1071		1297
1072	// special case the rather common 1..5-digit-int case	1298	// special case the rather common 1..5-digit-int case
1073	if (*start == '-')	1299	if (*start == '-')
1074	switch (len)	1300	switch (len)
1075	{	1301	{
1076	case 2: return newSViv (-( start [1] - '0' * 1));	1302	case 2: return newSViv (-(IV)( start [1] - '0' * 1));
1077	case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11));	1303	case 3: return newSViv (-(IV)( start [1] * 10 + start [2] - '0' * 11));
1078	case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111));	1304	case 4: return newSViv (-(IV)( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111));
1079	case 5: return newSViv (-( start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111));	1305	case 5: return newSViv (-(IV)( start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111));
1080	case 6: return newSViv (-(start [1] * 10000 + start [2] * 1000 + start [3] * 100 + start [4] * 10 + start [5] - '0' * 11111));	1306	case 6: return newSViv (-(IV)(start [1] * 10000 + start [2] * 1000 + start [3] * 100 + start [4] * 10 + start [5] - '0' * 11111));
1081	}	1307	}
1082	else	1308	else
1083	switch (len)	1309	switch (len)
1084	{	1310	{
1085	case 1: return newSViv ( start [0] - '0' * 1);	1311	case 1: return newSViv ( start [0] - '0' * 1);
1086	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);	1312	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);
1087	case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111);	1313	case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111);
1088	case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111);	1314	case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111);
1089	case 5: return newSViv ( start [0] * 10000 + start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 11111);	1315	case 5: return newSViv ( start [0] * 10000 + start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 11111);
1090	}	1316	}
1091		1317
1092	{	1318	{
1093	UV uv;	1319	UV uv;
1094	int numtype = grok_number (start, len, &uv);	1320	int numtype = grok_number (start, len, &uv);
…		…
1103	}	1329	}
1104		1330
1105	len -= *start == '-' ? 1 : 0;	1331	len -= *start == '-' ? 1 : 0;
1106		1332
1107	// does not fit into IV or UV, try NV	1333	// does not fit into IV or UV, try NV
1108	if ((sizeof (NV) == sizeof (double) && DBL_DIG >= len)	1334	if (len <= NV_DIG)
1109	#if defined (LDBL_DIG)
1110	\|\| (sizeof (NV) == sizeof (long double) && LDBL_DIG >= len)
1111	#endif
1112	)
1113	// fits into NV without loss of precision	1335	// fits into NV without loss of precision
1114	return newSVnv (Atof (start));	1336	return newSVnv (json_atof (start));
1115		1337
1116	// everything else fails, convert it to a string	1338	// everything else fails, convert it to a string
1117	return newSVpvn (start, dec->cur - start);	1339	return newSVpvn (start, dec->cur - start);
1118	}	1340	}
1119		1341
1120	// loss of precision here	1342	// loss of precision here
1121	return newSVnv (Atof (start));	1343	return newSVnv (json_atof (start));
1122		1344
1123	fail:	1345	fail:
1124	return 0;	1346	return 0;
1125	}	1347	}
1126		1348
…		…
1150	if (*dec->cur == ']')	1372	if (*dec->cur == ']')
1151	{	1373	{
1152	++dec->cur;	1374	++dec->cur;
1153	break;	1375	break;
1154	}	1376	}
1155		1377
1156	if (*dec->cur != ',')	1378	if (*dec->cur != ',')
1157	ERR (", or ] expected while parsing array");	1379	ERR (", or ] expected while parsing array");
1158		1380
1159	++dec->cur;	1381	++dec->cur;
1160		1382
…		…
1284		1506
1285	hv_iterinit (hv);	1507	hv_iterinit (hv);
1286	he = hv_iternext (hv);	1508	he = hv_iternext (hv);
1287	hv_iterinit (hv);	1509	hv_iterinit (hv);
1288		1510
1289	// the next line creates a mortal sv each time its called.	1511	// the next line creates a mortal sv each time it's called.
1290	// might want to optimise this for common cases.	1512	// might want to optimise this for common cases.
1291	cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0);	1513	cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0);
1292		1514
1293	if (cb)	1515	if (cb)
1294	{	1516	{
1295	dSP;	1517	dSP;
1296	int count;	1518	int count;
1297		1519
1298	ENTER; SAVETMPS; PUSHMARK (SP);	1520	ENTER; SAVETMPS;
		1521	SAVESTACK_POS ();
		1522	PUSHMARK (SP);
1299	XPUSHs (HeVAL (he));	1523	XPUSHs (HeVAL (he));
		1524	sv_2mortal (sv);
1300		1525
1301	PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN;	1526	PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN;
1302		1527
1303	if (count == 1)	1528	if (count == 1)
1304	{	1529	{
1305	sv = newSVsv (POPs);	1530	sv = newSVsv (POPs);
1306	FREETMPS; LEAVE;	1531	FREETMPS; LEAVE;
1307	return sv;	1532	return sv;
1308	}	1533	}
1309		1534
		1535	SvREFCNT_inc (sv);
1310	FREETMPS; LEAVE;	1536	FREETMPS; LEAVE;
1311	}	1537	}
1312	}	1538	}
1313		1539
1314	if (dec->json.cb_object)	1540	if (dec->json.cb_object)
1315	{	1541	{
1316	dSP;	1542	dSP;
1317	int count;	1543	int count;
1318		1544
1319	ENTER; SAVETMPS; PUSHMARK (SP);	1545	ENTER; SAVETMPS;
		1546	SAVESTACK_POS ();
		1547	PUSHMARK (SP);
1320	XPUSHs (sv_2mortal (sv));	1548	XPUSHs (sv_2mortal (sv));
1321		1549
1322	PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN;	1550	PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN;
1323		1551
1324	if (count == 1)	1552	if (count == 1)
…		…
1340	DEC_DEC_DEPTH;	1568	DEC_DEC_DEPTH;
1341	return 0;	1569	return 0;
1342	}	1570	}
1343		1571
1344	static SV *	1572	static SV *
		1573	decode_tag (dec_t *dec)
		1574	{
		1575	SV *tag = 0;
		1576	SV *val = 0;
		1577
		1578	if (!(dec->json.flags & F_ALLOW_TAGS))
		1579	ERR ("malformed JSON string, neither array, object, number, string or atom");
		1580
		1581	++dec->cur;
		1582
		1583	decode_ws (dec);
		1584
		1585	tag = decode_sv (dec);
		1586	if (!tag)
		1587	goto fail;
		1588
		1589	if (!SvPOK (tag))
		1590	ERR ("malformed JSON string, (tag) must be a string");
		1591
		1592	decode_ws (dec);
		1593
		1594	if (*dec->cur != ')')
		1595	ERR (") expected after tag");
		1596
		1597	++dec->cur;
		1598
		1599	decode_ws (dec);
		1600
		1601	val = decode_sv (dec);
		1602	if (!val)
		1603	goto fail;
		1604
		1605	if (!SvROK (val) \|\| SvTYPE (SvRV (val)) != SVt_PVAV)
		1606	ERR ("malformed JSON string, tag value must be an array");
		1607
		1608	{
		1609	AV av = (AV )SvRV (val);
		1610	int i, len = av_len (av) + 1;
		1611	HV *stash = gv_stashsv (tag, 0);
		1612	SV *sv;
		1613
		1614	if (!stash)
		1615	ERR ("cannot decode perl-object (package does not exist)");
		1616
		1617	GV *method = gv_fetchmethod_autoload (stash, "THAW", 0);
		1618
		1619	if (!method)
		1620	ERR ("cannot decode perl-object (package does not have a THAW method)");
		1621
		1622	dSP;
		1623
		1624	ENTER; SAVETMPS;
		1625	PUSHMARK (SP);
		1626	EXTEND (SP, len + 2);
		1627	// we re-bless the reference to get overload and other niceties right
		1628	PUSHs (tag);
		1629	PUSHs (sv_json);
		1630
		1631	for (i = 0; i < len; ++i)
		1632	PUSHs (*av_fetch (av, i, 1));
		1633
		1634	PUTBACK;
		1635	call_sv ((SV *)GvCV (method), G_SCALAR);
		1636	SPAGAIN;
		1637
		1638	SvREFCNT_dec (tag);
		1639	SvREFCNT_dec (val);
		1640	sv = SvREFCNT_inc (POPs);
		1641
		1642	PUTBACK;
		1643
		1644	FREETMPS; LEAVE;
		1645
		1646	return sv;
		1647	}
		1648
		1649	fail:
		1650	SvREFCNT_dec (tag);
		1651	SvREFCNT_dec (val);
		1652	return 0;
		1653	}
		1654
		1655	static SV *
1345	decode_sv (dec_t *dec)	1656	decode_sv (dec_t *dec)
1346	{	1657	{
1347	// the beauty of JSON: you need exactly one character lookahead	1658	// the beauty of JSON: you need exactly one character lookahead
1348	// to parse everything.	1659	// to parse everything.
1349	switch (*dec->cur)	1660	switch (*dec->cur)
1350	{	1661	{
1351	case '"': ++dec->cur; return decode_str (dec);	1662	case '"': ++dec->cur; return decode_str (dec);
1352	case '[': ++dec->cur; return decode_av (dec);	1663	case '[': ++dec->cur; return decode_av (dec);
1353	case '{': ++dec->cur; return decode_hv (dec);	1664	case '{': ++dec->cur; return decode_hv (dec);
		1665	case '(': return decode_tag (dec);
1354		1666
1355	case '-':	1667	case '-':
1356	case '0': case '1': case '2': case '3': case '4':	1668	case '0': case '1': case '2': case '3': case '4':
1357	case '5': case '6': case '7': case '8': case '9':	1669	case '5': case '6': case '7': case '8': case '9':
1358	return decode_num (dec);	1670	return decode_num (dec);
1359		1671
		1672	case 'f':
		1673	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))
		1674	{
		1675	dec->cur += 5;
		1676
		1677	if (expect_false (!dec->json.v_false))
		1678	dec->json.v_false = GET_BOOL (false);
		1679
		1680	return newSVsv (dec->json.v_false);
		1681	}
		1682	else
		1683	ERR ("'false' expected");
		1684
		1685	break;
		1686
1360	case 't':	1687	case 't':
1361	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))	1688	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))
1362	{	1689	{
1363	dec->cur += 4;	1690	dec->cur += 4;
1364	#if JSON_SLOW	1691
1365	json_true = get_bool ("JSON::XS::true");	1692	if (expect_false (!dec->json.v_true))
1366	#endif	1693	dec->json.v_true = GET_BOOL (true);
		1694
1367	return newSVsv (json_true);	1695	return newSVsv (dec->json.v_true);
1368	}	1696	}
1369	else	1697	else
1370	ERR ("'true' expected");	1698	ERR ("'true' expected");
1371
1372	break;
1373
1374	case 'f':
1375	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))
1376	{
1377	dec->cur += 5;
1378	#if JSON_SLOW
1379	json_false = get_bool ("JSON::XS::false");
1380	#endif
1381	return newSVsv (json_false);
1382	}
1383	else
1384	ERR ("'false' expected");
1385		1699
1386	break;	1700	break;
1387		1701
1388	case 'n':	1702	case 'n':
1389	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "null", 4))	1703	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "null", 4))
…		…
1395	ERR ("'null' expected");	1709	ERR ("'null' expected");
1396		1710
1397	break;	1711	break;
1398		1712
1399	default:	1713	default:
1400	ERR ("malformed JSON string, neither array, object, number, string or atom");	1714	ERR ("malformed JSON string, neither tag, array, object, number, string or atom");
1401	break;	1715	break;
1402	}	1716	}
1403		1717
1404	fail:	1718	fail:
1405	return 0;	1719	return 0;
…		…
1407		1721
1408	static SV *	1722	static SV *
1409	decode_json (SV string, JSON json, STRLEN *offset_return)	1723	decode_json (SV string, JSON json, STRLEN *offset_return)
1410	{	1724	{
1411	dec_t dec;	1725	dec_t dec;
1412	STRLEN offset;
1413	SV *sv;	1726	SV *sv;
1414		1727
		1728	/* work around bugs in 5.10 where manipulating magic values
		1729	* makes perl ignore the magic in subsequent accesses.
		1730	* also make a copy of non-PV values, to get them into a clean
		1731	* state (SvPV should do that, but it's buggy, see below).
		1732	*
		1733	* SvIsCOW_shared_hash works around a bug in perl (possibly 5.16),
		1734	* as reported by Reini Urban.
		1735	*/
1415	SvGETMAGIC (string);	1736	/SvGETMAGIC (string);/
		1737	if (SvMAGICAL (string) \|\| !SvPOK (string) \|\| SvIsCOW_shared_hash (string))
		1738	string = sv_2mortal (newSVsv (string));
		1739
1416	SvUPGRADE (string, SVt_PV);	1740	SvUPGRADE (string, SVt_PV);
1417		1741
		1742	/* work around a bug in perl 5.10, which causes SvCUR to fail an
		1743	* assertion with -DDEBUGGING, although SvCUR is documented to
		1744	* return the xpv_cur field which certainly exists after upgrading.
		1745	* according to nicholas clark, calling SvPOK fixes this.
		1746	* But it doesn't fix it, so try another workaround, call SvPV_nolen
		1747	* and hope for the best.
		1748	* Damnit, SvPV_nolen still trips over yet another assertion. This
		1749	* assertion business is seriously broken, try yet another workaround
		1750	* for the broken -DDEBUGGING.
		1751	*/
		1752	{
		1753	#ifdef DEBUGGING
		1754	STRLEN offset = SvOK (string) ? sv_len (string) : 0;
		1755	#else
		1756	STRLEN offset = SvCUR (string);
		1757	#endif
		1758
1418	if (SvCUR (string) > json->max_size && json->max_size)	1759	if (offset > json->max_size && json->max_size)
1419	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",	1760	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",
1420	(unsigned long)SvCUR (string), (unsigned long)json->max_size);	1761	(unsigned long)SvCUR (string), (unsigned long)json->max_size);
		1762	}
1421		1763
1422	if (json->flags & F_UTF8)	1764	if (DECODE_WANTS_OCTETS (json))
1423	sv_utf8_downgrade (string, 0);	1765	sv_utf8_downgrade (string, 0);
1424	else	1766	else
1425	sv_utf8_upgrade (string);	1767	sv_utf8_upgrade (string);
1426		1768
1427	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP	1769	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP
…		…
1438	*dec.end = 0; // this should basically be a nop, too, but make sure it's there	1780	*dec.end = 0; // this should basically be a nop, too, but make sure it's there
1439		1781
1440	decode_ws (&dec);	1782	decode_ws (&dec);
1441	sv = decode_sv (&dec);	1783	sv = decode_sv (&dec);
1442		1784
1443	if (!(offset_return \|\| !sv))	1785	if (offset_return)
		1786	*offset_return = dec.cur - SvPVX (string);
		1787	else if (sv)
1444	{	1788	{
1445	// check for trailing garbage	1789	// check for trailing garbage
1446	decode_ws (&dec);	1790	decode_ws (&dec);
1447		1791
1448	if (*dec.cur)	1792	if (*dec.cur)
1449	{	1793	{
1450	dec.err = "garbage after JSON object";	1794	dec.err = "garbage after JSON object";
1451	SvREFCNT_dec (sv);	1795	SvREFCNT_dec (sv);
1452	sv = 0;	1796	sv = 0;
1453	}	1797	}
1454	}
1455
1456	if (offset_return \|\| !sv)
1457	{
1458	offset = dec.json.flags & F_UTF8
1459	? dec.cur - SvPVX (string)
1460	: utf8_distance (dec.cur, SvPVX (string));
1461
1462	if (offset_return)
1463	*offset_return = offset;
1464	}	1798	}
1465		1799
1466	if (!sv)	1800	if (!sv)
1467	{	1801	{
1468	SV *uni = sv_newmortal ();	1802	SV *uni = sv_newmortal ();
…		…
1474	SAVEVPTR (PL_curcop);	1808	SAVEVPTR (PL_curcop);
1475	PL_curcop = &cop;	1809	PL_curcop = &cop;
1476	pv_uni_display (uni, dec.cur, dec.end - dec.cur, 20, UNI_DISPLAY_QQ);	1810	pv_uni_display (uni, dec.cur, dec.end - dec.cur, 20, UNI_DISPLAY_QQ);
1477	LEAVE;	1811	LEAVE;
1478		1812
1479	croak ("%s, at character offset %d [\"%s\"]",	1813	croak ("%s, at character offset %d (before \"%s\")",
1480	dec.err,	1814	dec.err,
1481	(int)offset,	1815	(int)ptr_to_index (string, dec.cur),
1482	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");	1816	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");
1483	}	1817	}
1484		1818
1485	sv = sv_2mortal (sv);	1819	sv = sv_2mortal (sv);
1486		1820
1487	if (!(dec.json.flags & F_ALLOW_NONREF) && !SvROK (sv))	1821	if (!(dec.json.flags & F_ALLOW_NONREF) && json_nonref (sv))
1488	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");	1822	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");
1489		1823
1490	return sv;	1824	return sv;
1491	}	1825	}
1492		1826
…		…
1495		1829
1496	static void	1830	static void
1497	incr_parse (JSON *self)	1831	incr_parse (JSON *self)
1498	{	1832	{
1499	const char *p = SvPVX (self->incr_text) + self->incr_pos;	1833	const char *p = SvPVX (self->incr_text) + self->incr_pos;
		1834
		1835	// the state machine here is a bit convoluted and could be simplified a lot
		1836	// but this would make it slower, so...
1500		1837
1501	for (;;)	1838	for (;;)
1502	{	1839	{
1503	//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	1840	//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
1504	switch (self->incr_mode)	1841	switch (self->incr_mode)
1505	{	1842	{
1506	// only used for intiial whitespace skipping	1843	// only used for initial whitespace skipping
1507	case INCR_M_WS:	1844	case INCR_M_WS:
1508	for (;;)	1845	for (;;)
1509	{	1846	{
1510	if (*p > 0x20)	1847	if (*p > 0x20)
1511	{	1848	{
		1849	if (*p == '#')
		1850	{
		1851	self->incr_mode = INCR_M_C0;
		1852	goto incr_m_c;
		1853	}
		1854	else
		1855	{
1512	self->incr_mode = INCR_M_JSON;	1856	self->incr_mode = INCR_M_JSON;
1513	goto incr_m_json;	1857	goto incr_m_json;
		1858	}
1514	}	1859	}
1515	else if (!*p)	1860	else if (!*p)
1516	goto interrupt;	1861	goto interrupt;
1517		1862
1518	++p;	1863	++p;
…		…
1524	goto interrupt;	1869	goto interrupt;
1525		1870
1526	++p;	1871	++p;
1527	self->incr_mode = INCR_M_STR;	1872	self->incr_mode = INCR_M_STR;
1528	goto incr_m_str;	1873	goto incr_m_str;
		1874
		1875	// inside #-style comments
		1876	case INCR_M_C0:
		1877	case INCR_M_C1:
		1878	incr_m_c:
		1879	for (;;)
		1880	{
		1881	if (*p == '\n')
		1882	{
		1883	self->incr_mode = self->incr_mode == INCR_M_C0 ? INCR_M_WS : INCR_M_JSON;
		1884	break;
		1885	}
		1886	else if (!*p)
		1887	goto interrupt;
		1888
		1889	++p;
		1890	}
		1891
		1892	break;
1529		1893
1530	// inside a string	1894	// inside a string
1531	case INCR_M_STR:	1895	case INCR_M_STR:
1532	incr_m_str:	1896	incr_m_str:
1533	for (;;)	1897	for (;;)
…		…
1584	self->incr_mode = INCR_M_STR;	1948	self->incr_mode = INCR_M_STR;
1585	goto incr_m_str;	1949	goto incr_m_str;
1586		1950
1587	case '[':	1951	case '[':
1588	case '{':	1952	case '{':
		1953	case '(':
1589	if (++self->incr_nest > self->max_depth)	1954	if (++self->incr_nest > self->max_depth)
1590	croak (ERR_NESTING_EXCEEDED);	1955	croak (ERR_NESTING_EXCEEDED);
1591	break;	1956	break;
1592		1957
1593	case ']':	1958	case ']':
1594	case '}':	1959	case '}':
1595	if (!--self->incr_nest)	1960	if (--self->incr_nest <= 0)
1596	goto interrupt;	1961	goto interrupt;
		1962	break;
		1963
		1964	case ')':
		1965	--self->incr_nest;
		1966	break;
		1967
		1968	case '#':
		1969	self->incr_mode = INCR_M_C1;
		1970	goto incr_m_c;
1597	}	1971	}
1598	}	1972	}
1599	}	1973	}
1600		1974
1601	modechange:	1975	modechange:
1602	;	1976	;
1603	}	1977	}
1604		1978
1605	interrupt:	1979	interrupt:
1606	self->incr_pos = p - SvPVX (self->incr_text);	1980	self->incr_pos = p - SvPVX (self->incr_text);
		1981	//printf ("interrupt<%.*s>\n", self->incr_pos, SvPVX(self->incr_text));//D
1607	//printf ("return pos %d mode %d nest %d\n", self->incr_pos, self->incr_mode, self->incr_nest);//D	1982	//printf ("return pos %d mode %d nest %d\n", self->incr_pos, self->incr_mode, self->incr_nest);//D
1608	}	1983	}
1609		1984
1610	/////////////////////////////////////////////////////////////////////////////	1985	/////////////////////////////////////////////////////////////////////////////
1611	// XS interface functions	1986	// XS interface functions
…		…
1621	i >= '0' && i <= '9' ? i - '0'	1996	i >= '0' && i <= '9' ? i - '0'
1622	: i >= 'a' && i <= 'f' ? i - 'a' + 10	1997	: i >= 'a' && i <= 'f' ? i - 'a' + 10
1623	: i >= 'A' && i <= 'F' ? i - 'A' + 10	1998	: i >= 'A' && i <= 'F' ? i - 'A' + 10
1624	: -1;	1999	: -1;
1625		2000
1626	json_stash = gv_stashpv ("JSON::XS" , 1);	2001	json_stash = gv_stashpv ("JSON::XS" , 1);
1627	json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1);	2002	bool_stash = gv_stashpv ("Types::Serialiser::Boolean", 1);
1628
1629	json_true = get_bool ("JSON::XS::true");
1630	json_false = get_bool ("JSON::XS::false");	2003	bool_false = get_bool ("Types::Serialiser::false");
		2004	bool_true = get_bool ("Types::Serialiser::true");
		2005
		2006	sv_json = newSVpv ("JSON", 0);
		2007	SvREADONLY_on (sv_json);
		2008
		2009	CvNODEBUG_on (get_cv ("JSON::XS::incr_text", 0)); /* the debugger completely breaks lvalue subs */
1631	}	2010	}
1632		2011
1633	PROTOTYPES: DISABLE	2012	PROTOTYPES: DISABLE
1634		2013
1635	void CLONE (...)	2014	void CLONE (...)
1636	CODE:	2015	CODE:
		2016	// as long as these writes are atomic, the race should not matter
		2017	// as existing threads either already use 0, or use the old value,
		2018	// which is sitll correct for the initial thread.
1637	json_stash = 0;	2019	json_stash = 0;
1638	json_boolean_stash = 0;	2020	bool_stash = 0;
		2021	bool_false = 0;
		2022	bool_true = 0;
1639		2023
1640	void new (char *klass)	2024	void new (char *klass)
1641	PPCODE:	2025	PPCODE:
1642	{	2026	{
1643	SV *pv = NEWSV (0, sizeof (JSON));	2027	SV *pv = NEWSV (0, sizeof (JSON));
1644	SvPOK_only (pv);	2028	SvPOK_only (pv);
1645	json_init ((JSON *)SvPVX (pv));	2029	json_init ((JSON *)SvPVX (pv));
1646	XPUSHs (sv_2mortal (sv_bless (	2030	XPUSHs (sv_2mortal (sv_bless (
1647	newRV_noinc (pv),	2031	newRV_noinc (pv),
1648	strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1)	2032	strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1)
1649	)));	2033	)));
1650	}	2034	}
		2035
		2036	void boolean_values (JSON self, SV v_false = 0, SV *v_true = 0)
		2037	PPCODE:
		2038	self->v_false = newSVsv (v_false);
		2039	self->v_true = newSVsv (v_true);
		2040	XPUSHs (ST (0));
		2041
		2042	void get_boolean_values (JSON *self)
		2043	PPCODE:
		2044	if (self->v_false && self->v_true)
		2045	{
		2046	EXTEND (SP, 2);
		2047	PUSHs (self->v_false);
		2048	PUSHs (self->v_true);
		2049	}
1651		2050
1652	void ascii (JSON *self, int enable = 1)	2051	void ascii (JSON *self, int enable = 1)
1653	ALIAS:	2052	ALIAS:
1654	ascii = F_ASCII	2053	ascii = F_ASCII
1655	latin1 = F_LATIN1	2054	latin1 = F_LATIN1
…		…
1663	shrink = F_SHRINK	2062	shrink = F_SHRINK
1664	allow_blessed = F_ALLOW_BLESSED	2063	allow_blessed = F_ALLOW_BLESSED
1665	convert_blessed = F_CONV_BLESSED	2064	convert_blessed = F_CONV_BLESSED
1666	relaxed = F_RELAXED	2065	relaxed = F_RELAXED
1667	allow_unknown = F_ALLOW_UNKNOWN	2066	allow_unknown = F_ALLOW_UNKNOWN
		2067	allow_tags = F_ALLOW_TAGS
1668	PPCODE:	2068	PPCODE:
1669	{	2069	{
1670	if (enable)	2070	if (enable)
1671	self->flags \|= ix;	2071	self->flags \|= ix;
1672	else	2072	else
…		…
1688	get_shrink = F_SHRINK	2088	get_shrink = F_SHRINK
1689	get_allow_blessed = F_ALLOW_BLESSED	2089	get_allow_blessed = F_ALLOW_BLESSED
1690	get_convert_blessed = F_CONV_BLESSED	2090	get_convert_blessed = F_CONV_BLESSED
1691	get_relaxed = F_RELAXED	2091	get_relaxed = F_RELAXED
1692	get_allow_unknown = F_ALLOW_UNKNOWN	2092	get_allow_unknown = F_ALLOW_UNKNOWN
		2093	get_allow_tags = F_ALLOW_TAGS
1693	PPCODE:	2094	PPCODE:
1694	XPUSHs (boolSV (self->flags & ix));	2095	XPUSHs (boolSV (self->flags & ix));
1695		2096
1696	void max_depth (JSON *self, U32 max_depth = 0x80000000UL)	2097	void max_depth (JSON *self, U32 max_depth = 0x80000000UL)
1697	PPCODE:	2098	PPCODE:
…		…
1725	}	2126	}
1726		2127
1727	void filter_json_single_key_object (JSON self, SV key, SV *cb = &PL_sv_undef)	2128	void filter_json_single_key_object (JSON self, SV key, SV *cb = &PL_sv_undef)
1728	PPCODE:	2129	PPCODE:
1729	{	2130	{
1730	if (!self->cb_sk_object)	2131	if (!self->cb_sk_object)
1731	self->cb_sk_object = newHV ();	2132	self->cb_sk_object = newHV ();
1732		2133
1733	if (SvOK (cb))	2134	if (SvOK (cb))
1734	hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0);	2135	hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0);
1735	else	2136	else
…		…
1746	XPUSHs (ST (0));	2147	XPUSHs (ST (0));
1747	}	2148	}
1748		2149
1749	void encode (JSON self, SV scalar)	2150	void encode (JSON self, SV scalar)
1750	PPCODE:	2151	PPCODE:
1751	XPUSHs (encode_json (scalar, self));	2152	PUTBACK; scalar = encode_json (scalar, self); SPAGAIN;
		2153	XPUSHs (scalar);
1752		2154
1753	void decode (JSON self, SV jsonstr)	2155	void decode (JSON self, SV jsonstr)
1754	PPCODE:	2156	PPCODE:
1755	XPUSHs (decode_json (jsonstr, self, 0));	2157	PUTBACK; jsonstr = decode_json (jsonstr, self, 0); SPAGAIN;
		2158	XPUSHs (jsonstr);
1756		2159
1757	void decode_prefix (JSON self, SV jsonstr)	2160	void decode_prefix (JSON self, SV jsonstr)
1758	PPCODE:	2161	PPCODE:
1759	{	2162	{
		2163	SV *sv;
1760	STRLEN offset;	2164	STRLEN offset;
		2165	PUTBACK; sv = decode_json (jsonstr, self, &offset); SPAGAIN;
1761	EXTEND (SP, 2);	2166	EXTEND (SP, 2);
1762	PUSHs (decode_json (jsonstr, self, &offset));	2167	PUSHs (sv);
1763	PUSHs (sv_2mortal (newSVuv (offset)));	2168	PUSHs (sv_2mortal (newSVuv (ptr_to_index (jsonstr, SvPV_nolen (jsonstr) + offset))));
1764	}	2169	}
1765		2170
1766	void incr_parse (JSON self, SV jsonstr = 0)	2171	void incr_parse (JSON self, SV jsonstr = 0)
1767	PPCODE:	2172	PPCODE:
1768	{	2173	{
1769	if (!self->incr_text)	2174	if (!self->incr_text)
1770	self->incr_text = newSVpvn ("", 0);	2175	self->incr_text = newSVpvn ("", 0);
		2176
		2177	/* if utf8-ness doesn't match the decoder, need to upgrade/downgrade */
		2178	if (!DECODE_WANTS_OCTETS (self) == !SvUTF8 (self->incr_text))
		2179	if (DECODE_WANTS_OCTETS (self))
		2180	{
		2181	if (self->incr_pos)
		2182	self->incr_pos = utf8_length ((U8 *)SvPVX (self->incr_text),
		2183	(U8 *)SvPVX (self->incr_text) + self->incr_pos);
		2184
		2185	sv_utf8_downgrade (self->incr_text, 0);
		2186	}
		2187	else
		2188	{
		2189	sv_utf8_upgrade (self->incr_text);
		2190
		2191	if (self->incr_pos)
		2192	self->incr_pos = utf8_hop ((U8 *)SvPVX (self->incr_text), self->incr_pos)
		2193	- (U8 *)SvPVX (self->incr_text);
		2194	}
1771		2195
1772	// append data, if any	2196	// append data, if any
1773	if (jsonstr)	2197	if (jsonstr)
1774	{	2198	{
		2199	/* make sure both strings have same encoding */
1775	if (SvUTF8 (jsonstr) && !SvUTF8 (self->incr_text))	2200	if (SvUTF8 (jsonstr) != SvUTF8 (self->incr_text))
		2201	if (SvUTF8 (jsonstr))
		2202	sv_utf8_downgrade (jsonstr, 0);
1776	{	2203	else
1777	/* utf-8-ness differs, need to upgrade */
1778	sv_utf8_upgrade (self->incr_text);	2204	sv_utf8_upgrade (jsonstr);
1779		2205
1780	if (self->incr_pos)	2206	/* and then just blindly append */
1781	self->incr_pos = utf8_hop ((U8 *)SvPVX (self->incr_text), self->incr_pos)
1782	- (U8 *)SvPVX (self->incr_text);
1783	}
1784
1785	{	2207	{
1786	STRLEN len;	2208	STRLEN len;
1787	const char *str = SvPV (jsonstr, len);	2209	const char *str = SvPV (jsonstr, len);
1788	SvGROW (self->incr_text, SvCUR (self->incr_text) + len + 1);	2210	STRLEN cur = SvCUR (self->incr_text);
		2211
		2212	if (SvLEN (self->incr_text) - cur <= len)
		2213	json_sv_grow (self->incr_text, cur, len);
		2214
1789	Move (str, SvEND (self->incr_text), len, char);	2215	Move (str, SvEND (self->incr_text), len, char);
1790	SvCUR_set (self->incr_text, SvCUR (self->incr_text) + len);	2216	SvCUR_set (self->incr_text, SvCUR (self->incr_text) + len);
1791	*SvEND (self->incr_text) = 0; // this should basically be a nop, too, but make sure it's there	2217	*SvEND (self->incr_text) = 0; // this should basically be a nop, too, but make sure it's there
1792	}	2218	}
1793	}	2219	}
1794		2220
1795	if (GIMME_V != G_VOID)	2221	if (GIMME_V != G_VOID)
1796	do	2222	do
1797	{	2223	{
		2224	SV *sv;
1798	STRLEN offset;	2225	STRLEN offset;
1799		2226
1800	if (!INCR_DONE (self))	2227	if (!INCR_DONE (self))
1801	{	2228	{
1802	incr_parse (self);	2229	incr_parse (self);
…		…
1804	if (self->incr_pos > self->max_size && self->max_size)	2231	if (self->incr_pos > self->max_size && self->max_size)
1805	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",	2232	croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu",
1806	(unsigned long)self->incr_pos, (unsigned long)self->max_size);	2233	(unsigned long)self->incr_pos, (unsigned long)self->max_size);
1807		2234
1808	if (!INCR_DONE (self))	2235	if (!INCR_DONE (self))
		2236	{
		2237	// as an optimisation, do not accumulate white space in the incr buffer
		2238	if (self->incr_mode == INCR_M_WS && self->incr_pos)
		2239	{
		2240	self->incr_pos = 0;
		2241	SvCUR_set (self->incr_text, 0);
		2242	}
		2243
1809	break;	2244	break;
		2245	}
1810	}	2246	}
1811		2247
1812	XPUSHs (decode_json (self->incr_text, self, &offset));	2248	PUTBACK; sv = decode_json (self->incr_text, self, &offset); SPAGAIN;
		2249	XPUSHs (sv);
1813		2250
1814	sv_chop (self->incr_text, SvPV_nolen (self->incr_text) + offset);
1815	self->incr_pos -= offset;	2251	self->incr_pos -= offset;
1816	self->incr_nest = 0;	2252	self->incr_nest = 0;
1817	self->incr_mode = 0;	2253	self->incr_mode = 0;
		2254
		2255	sv_chop (self->incr_text, SvPVX (self->incr_text) + offset);
1818	}	2256	}
1819	while (GIMME_V == G_ARRAY);	2257	while (GIMME_V == G_ARRAY);
1820	}	2258	}
1821		2259
1822	SV incr_text (JSON self)	2260	SV incr_text (JSON self)
…		…
1853	self->incr_mode = 0;	2291	self->incr_mode = 0;
1854	}	2292	}
1855		2293
1856	void DESTROY (JSON *self)	2294	void DESTROY (JSON *self)
1857	CODE:	2295	CODE:
		2296	SvREFCNT_dec (self->v_false);
		2297	SvREFCNT_dec (self->v_true);
1858	SvREFCNT_dec (self->cb_sk_object);	2298	SvREFCNT_dec (self->cb_sk_object);
1859	SvREFCNT_dec (self->cb_object);	2299	SvREFCNT_dec (self->cb_object);
1860	SvREFCNT_dec (self->incr_text);	2300	SvREFCNT_dec (self->incr_text);
1861		2301
1862	PROTOTYPES: ENABLE	2302	PROTOTYPES: ENABLE
1863		2303
1864	void encode_json (SV *scalar)	2304	void encode_json (SV *scalar)
1865	ALIAS:
1866	to_json_ = 0
1867	encode_json = F_UTF8
1868	PPCODE:	2305	PPCODE:
1869	{	2306	{
1870	JSON json;	2307	JSON json;
1871	json_init (&json);	2308	json_init (&json);
1872	json.flags \|= ix;	2309	json.flags \|= F_UTF8;
1873	XPUSHs (encode_json (scalar, &json));	2310	PUTBACK; scalar = encode_json (scalar, &json); SPAGAIN;
		2311	XPUSHs (scalar);
1874	}	2312	}
1875		2313
1876	void decode_json (SV *jsonstr)	2314	void decode_json (SV *jsonstr)
1877	ALIAS:
1878	from_json_ = 0
1879	decode_json = F_UTF8
1880	PPCODE:	2315	PPCODE:
1881	{	2316	{
1882	JSON json;	2317	JSON json;
1883	json_init (&json);	2318	json_init (&json);
1884	json.flags \|= ix;	2319	json.flags \|= F_UTF8;
1885	XPUSHs (decode_json (jsonstr, &json, 0));	2320	PUTBACK; jsonstr = decode_json (jsonstr, &json, 0); SPAGAIN;
		2321	XPUSHs (jsonstr);
1886	}	2322	}
1887		2323
1888

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Comparing JSON-XS/XS.xs (file contents): Revision 1.86 by root, Tue May 27 05:31:39 2008 UTC vs. Revision 1.133 by root, Tue Aug 28 16:16:17 2018 UTC

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Comparing JSON-XS/XS.xs (file contents):
Revision 1.86 by root, Tue May 27 05:31:39 2008 UTC vs.
Revision 1.133 by root, Tue Aug 28 16:16:17 2018 UTC