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

Comparing JSON-XS/XS.xs (file contents):
Revision 1.85 by root, Sat Apr 5 18:15:46 2008 UTC vs.
Revision 1.119 by root, Mon Oct 28 23:19:54 2013 UTC

…		…
12	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	12	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)
13	# define snprintf _snprintf // C compilers have this in stdio.h	13	# define snprintf _snprintf // C compilers have this in stdio.h
14	#endif	14	#endif
15		15
16	// some old perls do not have this, try to make it work, no	16	// 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.	17	// guarantees, though. if it breaks, you get to keep the pieces.
18	#ifndef UTF8_MAXBYTES	18	#ifndef UTF8_MAXBYTES
19	# define UTF8_MAXBYTES 13	19	# define UTF8_MAXBYTES 13
20	#endif	20	#endif
21		21
		22	// three extra for rounding, sign, and end of string
22	#define IVUV_MAXCHARS (sizeof (UV) * CHAR_BIT * 28 / 93 + 2)	23	#define IVUV_MAXCHARS (sizeof (UV) * CHAR_BIT * 28 / 93 + 3)
23		24
24	#define F_ASCII 0x00000001UL	25	#define F_ASCII 0x00000001UL
25	#define F_LATIN1 0x00000002UL	26	#define F_LATIN1 0x00000002UL
26	#define F_UTF8 0x00000004UL	27	#define F_UTF8 0x00000004UL
27	#define F_INDENT 0x00000008UL	28	#define F_INDENT 0x00000008UL
…		…
32	#define F_SHRINK 0x00000200UL	33	#define F_SHRINK 0x00000200UL
33	#define F_ALLOW_BLESSED 0x00000400UL	34	#define F_ALLOW_BLESSED 0x00000400UL
34	#define F_CONV_BLESSED 0x00000800UL	35	#define F_CONV_BLESSED 0x00000800UL
35	#define F_RELAXED 0x00001000UL	36	#define F_RELAXED 0x00001000UL
36	#define F_ALLOW_UNKNOWN 0x00002000UL	37	#define F_ALLOW_UNKNOWN 0x00002000UL
		38	#define F_ALLOW_TAGS 0x00004000UL
37	#define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing	39	#define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing
38		40
39	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER	41	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER
40		42
41	#define INIT_SIZE 32 // initial scalar size to be allocated	43	#define INIT_SIZE 32 // initial scalar size to be allocated
42	#define INDENT_STEP 3 // spaces per indentation level	44	#define INDENT_STEP 3 // spaces per indentation level
43		45
44	#define SHORT_STRING_LEN 16384 // special-case strings of up to this size	46	#define SHORT_STRING_LEN 16384 // special-case strings of up to this size
		47
		48	#define DECODE_WANTS_OCTETS(json) ((json)->flags & F_UTF8)
45		49
46	#define SB do {	50	#define SB do {
47	#define SE } while (0)	51	#define SE } while (0)
48		52
49	#if __GNUC__ >= 3	53	#if __GNUC__ >= 3
…		…
69	#else	73	#else
70	# define JSON_SLOW 0	74	# define JSON_SLOW 0
71	# define JSON_STASH json_stash	75	# define JSON_STASH json_stash
72	#endif	76	#endif
73		77
		78	// the amount of HEs to allocate on the stack, when sorting keys
		79	#define STACK_HES 64
		80
74	static HV json_stash, json_boolean_stash; // JSON::XS::	81	static HV json_stash, types_boolean_stash; // JSON::XS::
75	static SV json_true, json_false;	82	static SV types_true, types_false, *sv_json;
76		83
77	enum {	84	enum {
78	INCR_M_WS = 0, // initial whitespace skipping, must be 0	85	INCR_M_WS = 0, // initial whitespace skipping, must be 0
79	INCR_M_STR, // inside string	86	INCR_M_STR, // inside string
80	INCR_M_BS, // inside backslash	87	INCR_M_BS, // inside backslash
		88	INCR_M_C0, // inside comment in initial whitespace sequence
		89	INCR_M_C1, // inside comment in other places
81	INCR_M_JSON // outside anything, count nesting	90	INCR_M_JSON // outside anything, count nesting
82	};	91	};
83		92
84	#define INCR_DONE(json) (!(json)->incr_nest && (json)->incr_mode == INCR_M_JSON)	93	#define INCR_DONE(json) ((json)->incr_nest <= 0 && (json)->incr_mode == INCR_M_JSON)
85		94
86	typedef struct {	95	typedef struct {
87	U32 flags;	96	U32 flags;
88	U32 max_depth;	97	U32 max_depth;
89	STRLEN max_size;	98	STRLEN max_size;
…		…
92	HV *cb_sk_object;	101	HV *cb_sk_object;
93		102
94	// for the incremental parser	103	// for the incremental parser
95	SV *incr_text; // the source text so far	104	SV *incr_text; // the source text so far
96	STRLEN incr_pos; // the current offset into the text	105	STRLEN incr_pos; // the current offset into the text
97	unsigned char incr_nest; // {[]}-nesting level	106	int incr_nest; // {[]}-nesting level
98	unsigned char incr_mode;	107	unsigned char incr_mode;
99	} JSON;	108	} JSON;
100		109
101	INLINE void	110	INLINE void
102	json_init (JSON *json)	111	json_init (JSON *json)
…		…
121		130
122	INLINE void	131	INLINE void
123	shrink (SV *sv)	132	shrink (SV *sv)
124	{	133	{
125	sv_utf8_downgrade (sv, 1);	134	sv_utf8_downgrade (sv, 1);
		135
126	if (SvLEN (sv) > SvCUR (sv) + 1)	136	if (SvLEN (sv) > SvCUR (sv) + 1)
127	{	137	{
128	#ifdef SvPV_shrink_to_cur	138	#ifdef SvPV_shrink_to_cur
129	SvPV_shrink_to_cur (sv);	139	SvPV_shrink_to_cur (sv);
130	#elif defined (SvPV_renew)	140	#elif defined (SvPV_renew)
…		…
174	*s++ = 0x80 \| ( ch & 0x3f);	184	*s++ = 0x80 \| ( ch & 0x3f);
175		185
176	return s;	186	return s;
177	}	187	}
178		188
		189	// convert offset pointer to character index, sv must be string
		190	static STRLEN
		191	ptr_to_index (SV sv, char offset)
		192	{
		193	return SvUTF8 (sv)
		194	? utf8_distance (offset, SvPVX (sv))
		195	: offset - SvPVX (sv);
		196	}
		197
		198	/////////////////////////////////////////////////////////////////////////////
		199	// fp hell
		200
		201	// scan a group of digits, and a trailing exponent
		202	static void
		203	json_atof_scan1 (const char s, NV accum, int *expo, int postdp, int maxdepth)
		204	{
		205	UV uaccum = 0;
		206	int eaccum = 0;
		207
		208	// if we recurse too deep, skip all remaining digits
		209	// to avoid a stack overflow attack
		210	if (expect_false (--maxdepth <= 0))
		211	while (((U8)*s - '0') < 10)
		212	++s;
		213
		214	for (;;)
		215	{
		216	U8 dig = (U8)*s - '0';
		217
		218	if (expect_false (dig >= 10))
		219	{
		220	if (dig == (U8)((U8)'.' - (U8)'0'))
		221	{
		222	++s;
		223	json_atof_scan1 (s, accum, expo, 1, maxdepth);
		224	}
		225	else if ((dig \| ' ') == 'e' - '0')
		226	{
		227	int exp2 = 0;
		228	int neg = 0;
		229
		230	++s;
		231
		232	if (*s == '-')
		233	{
		234	++s;
		235	neg = 1;
		236	}
		237	else if (*s == '+')
		238	++s;
		239
		240	while ((dig = (U8)*s - '0') < 10)
		241	exp2 = exp2 * 10 + *s++ - '0';
		242
		243	*expo += neg ? -exp2 : exp2;
		244	}
		245
		246	break;
		247	}
		248
		249	++s;
		250
		251	uaccum = uaccum * 10 + dig;
		252	++eaccum;
		253
		254	// if we have too many digits, then recurse for more
		255	// we actually do this for rather few digits
		256	if (uaccum >= (UV_MAX - 9) / 10)
		257	{
		258	if (postdp) *expo -= eaccum;
		259	json_atof_scan1 (s, accum, expo, postdp, maxdepth);
		260	if (postdp) *expo += eaccum;
		261
		262	break;
		263	}
		264	}
		265
		266	// this relies greatly on the quality of the pow ()
		267	// implementation of the platform, but a good
		268	// implementation is hard to beat.
		269	// (IEEE 754 conformant ones are required to be exact)
		270	if (postdp) *expo -= eaccum;
		271	accum += uaccum Perl_pow (10., *expo);
		272	*expo += eaccum;
		273	}
		274
		275	static NV
		276	json_atof (const char *s)
		277	{
		278	NV accum = 0.;
		279	int expo = 0;
		280	int neg = 0;
		281
		282	if (*s == '-')
		283	{
		284	++s;
		285	neg = 1;
		286	}
		287
		288	// a recursion depth of ten gives us >>500 bits
		289	json_atof_scan1 (s, &accum, &expo, 0, 10);
		290
		291	return neg ? -accum : accum;
		292	}
179	/////////////////////////////////////////////////////////////////////////////	293	/////////////////////////////////////////////////////////////////////////////
180	// encoder	294	// encoder
181		295
182	// structure used for encoding JSON	296	// structure used for encoding JSON
183	typedef struct	297	typedef struct
…		…
193	INLINE void	307	INLINE void
194	need (enc_t *enc, STRLEN len)	308	need (enc_t *enc, STRLEN len)
195	{	309	{
196	if (expect_false (enc->cur + len >= enc->end))	310	if (expect_false (enc->cur + len >= enc->end))
197	{	311	{
198	STRLEN cur = enc->cur - SvPVX (enc->sv);	312	STRLEN cur = enc->cur - (char *)SvPVX (enc->sv);
199	SvGROW (enc->sv, cur + len + 1);	313	SvGROW (enc->sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
200	enc->cur = SvPVX (enc->sv) + cur;	314	enc->cur = SvPVX (enc->sv) + cur;
201	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;	315	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;
202	}	316	}
203	}	317	}
204		318
…		…
279	(int)((uch - 0x10000) % 0x400 + 0xDC00));	393	(int)((uch - 0x10000) % 0x400 + 0xDC00));
280	enc->cur += 12;	394	enc->cur += 12;
281	}	395	}
282	else	396	else
283	{	397	{
284	static char hexdigit [16] = "0123456789abcdef";
285	need (enc, len += 5);	398	need (enc, len += 5);
286	*enc->cur++ = '\\';	399	*enc->cur++ = '\\';
287	*enc->cur++ = 'u';	400	*enc->cur++ = 'u';
288	*enc->cur++ = hexdigit [ uch >> 12 ];	401	*enc->cur++ = PL_hexdigit [ uch >> 12 ];
289	*enc->cur++ = hexdigit [(uch >> 8) & 15];	402	*enc->cur++ = PL_hexdigit [(uch >> 8) & 15];
290	*enc->cur++ = hexdigit [(uch >> 4) & 15];	403	*enc->cur++ = PL_hexdigit [(uch >> 4) & 15];
291	*enc->cur++ = hexdigit [(uch >> 0) & 15];	404	*enc->cur++ = PL_hexdigit [(uch >> 0) & 15];
292	}	405	}
293		406
294	str += clen;	407	str += clen;
295	}	408	}
296	else if (enc->json.flags & F_LATIN1)	409	else if (enc->json.flags & F_LATIN1)
…		…
371		484
372	if (enc->indent >= enc->json.max_depth)	485	if (enc->indent >= enc->json.max_depth)
373	croak (ERR_NESTING_EXCEEDED);	486	croak (ERR_NESTING_EXCEEDED);
374		487
375	encode_ch (enc, '[');	488	encode_ch (enc, '[');
376		489
377	if (len >= 0)	490	if (len >= 0)
378	{	491	{
379	encode_nl (enc); ++enc->indent;	492	encode_nl (enc); ++enc->indent;
380		493
381	for (i = 0; i <= len; ++i)	494	for (i = 0; i <= len; ++i)
…		…
393	encode_comma (enc);	506	encode_comma (enc);
394	}	507	}
395		508
396	encode_nl (enc); --enc->indent; encode_indent (enc);	509	encode_nl (enc); --enc->indent; encode_indent (enc);
397	}	510	}
398		511
399	encode_ch (enc, ']');	512	encode_ch (enc, ']');
400	}	513	}
401		514
402	static void	515	static void
403	encode_hk (enc_t enc, HE he)	516	encode_hk (enc_t enc, HE he)
…		…
407	if (HeKLEN (he) == HEf_SVKEY)	520	if (HeKLEN (he) == HEf_SVKEY)
408	{	521	{
409	SV *sv = HeSVKEY (he);	522	SV *sv = HeSVKEY (he);
410	STRLEN len;	523	STRLEN len;
411	char *str;	524	char *str;
412		525
413	SvGETMAGIC (sv);	526	SvGETMAGIC (sv);
414	str = SvPV (sv, len);	527	str = SvPV (sv, len);
415		528
416	encode_str (enc, str, len, SvUTF8 (sv));	529	encode_str (enc, str, len, SvUTF8 (sv));
417	}	530	}
…		…
460		573
461	encode_ch (enc, '{');	574	encode_ch (enc, '{');
462		575
463	// for canonical output we have to sort by keys first	576	// for canonical output we have to sort by keys first
464	// actually, this is mostly due to the stupid so-called	577	// actually, this is mostly due to the stupid so-called
465	// security workaround added somewhere in 5.8.x.	578	// security workaround added somewhere in 5.8.x
466	// that randomises hash orderings	579	// that randomises hash orderings
467	if (enc->json.flags & F_CANONICAL)	580	if (enc->json.flags & F_CANONICAL && !SvRMAGICAL (hv))
468	{	581	{
469	int count = hv_iterinit (hv);	582	int count = hv_iterinit (hv);
470		583
471	if (SvMAGICAL (hv))	584	if (SvMAGICAL (hv))
472	{	585	{
…		…
483	}	596	}
484		597
485	if (count)	598	if (count)
486	{	599	{
487	int i, fast = 1;	600	int i, fast = 1;
488	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)	601	HE *hes_stack [STACK_HES];
489	HE *hes = _alloca (count sizeof (HE));	602	HE **hes = hes_stack;
490	#else	603
491	HE *hes [count]; // if your compiler dies here, you need to enable C99 mode	604	// allocate larger arrays on the heap
492	#endif	605	if (count > STACK_HES)
		606	{
		607	SV sv = sv_2mortal (NEWSV (0, count sizeof (*hes)));
		608	hes = (HE **)SvPVX (sv);
		609	}
493		610
494	i = 0;	611	i = 0;
495	while ((he = hv_iternext (hv)))	612	while ((he = hv_iternext (hv)))
496	{	613	{
497	hes [i++] = he;	614	hes [i++] = he;
…		…
572	SvGETMAGIC (sv);	689	SvGETMAGIC (sv);
573	svt = SvTYPE (sv);	690	svt = SvTYPE (sv);
574		691
575	if (expect_false (SvOBJECT (sv)))	692	if (expect_false (SvOBJECT (sv)))
576	{	693	{
577	HV *stash = !JSON_SLOW \|\| json_boolean_stash	694	HV *boolean_stash = !JSON_SLOW \|\| types_boolean_stash
578	? json_boolean_stash	695	? types_boolean_stash
579	: gv_stashpv ("JSON::XS::Boolean", 1);	696	: gv_stashpv ("Types::Serialiser::Boolean", 1);
		697	HV *stash = SvSTASH (sv);
580		698
581	if (SvSTASH (sv) == stash)	699	if (stash == boolean_stash)
582	{	700	{
583	if (SvIV (sv))	701	if (SvIV (sv))
584	encode_str (enc, "true", 4, 0);	702	encode_str (enc, "true", 4, 0);
585	else	703	else
586	encode_str (enc, "false", 5, 0);	704	encode_str (enc, "false", 5, 0);
587	}	705	}
588	else	706	else if (enc->json.flags & F_CONV_BLESSED)
589	{	707	{
590	#if 0	708	GV *to_json = gv_fetchmethod_autoload (stash, "TO_JSON", 0);
591	if (0 && sv_derived_from (rv, "JSON::Literal"))	709
592	{	710	if (to_json)
593	// not yet
594	}	711	{
595	#endif
596	if (enc->json.flags & F_CONV_BLESSED)
597	{	712	dSP;
		713
		714	ENTER; SAVETMPS; PUSHMARK (SP);
598	// we re-bless the reference to get overload and other niceties right	715	// 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)));	716	XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
607		717
608	// calling with G_SCALAR ensures that we always get a 1 return value	718	// calling with G_SCALAR ensures that we always get a 1 return value
609	PUTBACK;	719	PUTBACK;
610	call_sv ((SV *)GvCV (to_json), G_SCALAR);	720	call_sv ((SV *)GvCV (to_json), G_SCALAR);
611	SPAGAIN;	721	SPAGAIN;
612		722
613	// catch this surprisingly common error	723	// catch this surprisingly common error
614	if (SvROK (TOPs) && SvRV (TOPs) == sv)	724	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)));	725	croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
616		726
617	sv = POPs;	727	sv = POPs;
618	PUTBACK;	728	PUTBACK;
619		729
620	encode_sv (enc, sv);	730	encode_sv (enc, sv);
621		731
622	FREETMPS; LEAVE;	732	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	}	733	}
630	else if (enc->json.flags & F_ALLOW_BLESSED)	734	else if (enc->json.flags & F_ALLOW_BLESSED)
631	encode_str (enc, "null", 4, 0);	735	encode_str (enc, "null", 4, 0);
632	else	736	else
633	croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled",	737	croak ("encountered object '%s' when conv_object is enabled, but TO_JSON is missing and allow_blessed disabled",
634	SvPV_nolen (sv_2mortal (newRV_inc (sv))));	738	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
635	}	739	}
		740	else if (enc->json.flags & F_ALLOW_TAGS)
		741	{
		742	GV *method = gv_fetchmethod_autoload (stash, "FREEZE", 0);
		743
		744	if (method)
		745	{
		746	int count;
		747	dSP;
		748
		749	ENTER; SAVETMPS; PUSHMARK (SP);
		750	EXTEND (SP, 2);
		751	// we re-bless the reference to get overload and other niceties right
		752	PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash));
		753	PUSHs (sv_json);
		754
		755	PUTBACK;
		756	count = call_sv ((SV *)GvCV (method), G_ARRAY);
		757	SPAGAIN;
		758
		759	// catch this surprisingly common error
		760	if (SvROK (TOPs) && SvRV (TOPs) == sv)
		761	croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv)));
		762
		763	encode_ch (enc, '(');
		764	encode_ch (enc, '"');
		765	encode_str (enc, HvNAME (stash), HvNAMELEN (stash), HvNAMEUTF8 (stash));
		766	encode_ch (enc, '"');
		767	encode_ch (enc, ')');
		768	encode_ch (enc, '[');
		769
		770	while (count)
		771	{
		772	encode_sv (enc, SP[1 - count--]);
		773
		774	if (count)
		775	encode_ch (enc, ',');
		776	}
		777
		778	encode_ch (enc, ']');
		779
		780	PUTBACK;
		781
		782	FREETMPS; LEAVE;
		783	}
		784	else if (enc->json.flags & F_ALLOW_BLESSED)
		785	encode_str (enc, "null", 4, 0);
		786	else
		787	croak ("encountered object '%s' when allow_tags is enabled, but FREEZE is missing and allow_blessed disabled",
		788	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
		789	}
		790	else if (enc->json.flags & F_ALLOW_BLESSED)
		791	encode_str (enc, "null", 4, 0);
		792	else
		793	croak ("encountered object '%s', but neither allow_blessed, convert_blessed nor allow_tags settings are enabled",
		794	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
636	}	795	}
637	else if (svt == SVt_PVHV)	796	else if (svt == SVt_PVHV)
638	encode_hv (enc, (HV *)sv);	797	encode_hv (enc, (HV *)sv);
639	else if (svt == SVt_PVAV)	798	else if (svt == SVt_PVAV)
640	encode_av (enc, (AV *)sv);	799	encode_av (enc, (AV *)sv);
…		…
716	}	875	}
717	else	876	else
718	{	877	{
719	// large integer, use the (rather slow) snprintf way.	878	// large integer, use the (rather slow) snprintf way.
720	need (enc, IVUV_MAXCHARS);	879	need (enc, IVUV_MAXCHARS);
721	enc->cur +=	880	enc->cur +=
722	SvIsUV(sv)	881	SvIsUV(sv)
723	? snprintf (enc->cur, IVUV_MAXCHARS, "%"UVuf, (UV)SvUVX (sv))	882	? snprintf (enc->cur, IVUV_MAXCHARS, "%"UVuf, (UV)SvUVX (sv))
724	: snprintf (enc->cur, IVUV_MAXCHARS, "%"IVdf, (IV)SvIVX (sv));	883	: snprintf (enc->cur, IVUV_MAXCHARS, "%"IVdf, (IV)SvIVX (sv));
725	}	884	}
726	}	885	}
727	else if (SvROK (sv))	886	else if (SvROK (sv))
728	encode_rv (enc, SvRV (sv));	887	encode_rv (enc, SvRV (sv));
729	else if (!SvOK (sv) \|\| enc->json.flags & F_ALLOW_UNKNOWN)	888	else if (!SvOK (sv) \|\| enc->json.flags & F_ALLOW_UNKNOWN)
730	encode_str (enc, "null", 4, 0);	889	encode_str (enc, "null", 4, 0);
731	else	890	else
732	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",	891	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, check your input data",
733	SvPV_nolen (sv), SvFLAGS (sv));	892	SvPV_nolen (sv), (unsigned int)SvFLAGS (sv));
734	}	893	}
735		894
736	static SV *	895	static SV *
737	encode_json (SV scalar, JSON json)	896	encode_json (SV scalar, JSON json)
738	{	897	{
…		…
750	: enc.json.flags & F_LATIN1 ? 0x000100UL	909	: enc.json.flags & F_LATIN1 ? 0x000100UL
751	: 0x110000UL;	910	: 0x110000UL;
752		911
753	SvPOK_only (enc.sv);	912	SvPOK_only (enc.sv);
754	encode_sv (&enc, scalar);	913	encode_sv (&enc, scalar);
		914	encode_nl (&enc);
755		915
756	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));	916	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));
757	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings	917	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings
758		918
759	if (!(enc.json.flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))	919	if (!(enc.json.flags & (F_ASCII \| F_LATIN1 \| F_UTF8)))
…		…
939	else if (expect_true (ch >= 0x20 && ch < 0x80))	1099	else if (expect_true (ch >= 0x20 && ch < 0x80))
940	*cur++ = ch;	1100	*cur++ = ch;
941	else if (ch >= 0x80)	1101	else if (ch >= 0x80)
942	{	1102	{
943	STRLEN clen;	1103	STRLEN clen;
944	UV uch;
945		1104
946	--dec_cur;	1105	--dec_cur;
947		1106
948	uch = decode_utf8 (dec_cur, dec->end - dec_cur, &clen);	1107	decode_utf8 (dec_cur, dec->end - dec_cur, &clen);
949	if (clen == (STRLEN)-1)	1108	if (clen == (STRLEN)-1)
950	ERR ("malformed UTF-8 character in JSON string");	1109	ERR ("malformed UTF-8 character in JSON string");
951		1110
952	do	1111	do
953	cur++ = dec_cur++;	1112	cur++ = dec_cur++;
…		…
970	{	1129	{
971	STRLEN len = cur - buf;	1130	STRLEN len = cur - buf;
972		1131
973	if (sv)	1132	if (sv)
974	{	1133	{
975	SvGROW (sv, SvCUR (sv) + len + 1);	1134	STRLEN cur = SvCUR (sv);
		1135
		1136	if (SvLEN (sv) <= cur + len)
		1137	SvGROW (sv, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
		1138
976	memcpy (SvPVX (sv) + SvCUR (sv), buf, len);	1139	memcpy (SvPVX (sv) + SvCUR (sv), buf, len);
977	SvCUR_set (sv, SvCUR (sv) + len);	1140	SvCUR_set (sv, SvCUR (sv) + len);
978	}	1141	}
979	else	1142	else
980	sv = newSVpvn (buf, len);	1143	sv = newSVpvn (buf, len);
…		…
1071		1234
1072	// special case the rather common 1..5-digit-int case	1235	// special case the rather common 1..5-digit-int case
1073	if (*start == '-')	1236	if (*start == '-')
1074	switch (len)	1237	switch (len)
1075	{	1238	{
1076	case 2: return newSViv (-( start [1] - '0' * 1));	1239	case 2: return newSViv (-(IV)( start [1] - '0' * 1));
1077	case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11));	1240	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));	1241	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));	1242	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));	1243	case 6: return newSViv (-(IV)(start [1] * 10000 + start [2] * 1000 + start [3] * 100 + start [4] * 10 + start [5] - '0' * 11111));
1081	}	1244	}
1082	else	1245	else
1083	switch (len)	1246	switch (len)
1084	{	1247	{
1085	case 1: return newSViv ( start [0] - '0' * 1);	1248	case 1: return newSViv ( start [0] - '0' * 1);
1086	case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11);	1249	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);	1250	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);	1251	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);	1252	case 5: return newSViv ( start [0] * 10000 + start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 11111);
1090	}	1253	}
1091		1254
1092	{	1255	{
1093	UV uv;	1256	UV uv;
1094	int numtype = grok_number (start, len, &uv);	1257	int numtype = grok_number (start, len, &uv);
…		…
1103	}	1266	}
1104		1267
1105	len -= *start == '-' ? 1 : 0;	1268	len -= *start == '-' ? 1 : 0;
1106		1269
1107	// does not fit into IV or UV, try NV	1270	// does not fit into IV or UV, try NV
1108	if ((sizeof (NV) == sizeof (double) && DBL_DIG >= len)	1271	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	1272	// fits into NV without loss of precision
1114	return newSVnv (Atof (start));	1273	return newSVnv (json_atof (start));
1115		1274
1116	// everything else fails, convert it to a string	1275	// everything else fails, convert it to a string
1117	return newSVpvn (start, dec->cur - start);	1276	return newSVpvn (start, dec->cur - start);
1118	}	1277	}
1119		1278
1120	// loss of precision here	1279	// loss of precision here
1121	return newSVnv (Atof (start));	1280	return newSVnv (json_atof (start));
1122		1281
1123	fail:	1282	fail:
1124	return 0;	1283	return 0;
1125	}	1284	}
1126		1285
…		…
1150	if (*dec->cur == ']')	1309	if (*dec->cur == ']')
1151	{	1310	{
1152	++dec->cur;	1311	++dec->cur;
1153	break;	1312	break;
1154	}	1313	}
1155		1314
1156	if (*dec->cur != ',')	1315	if (*dec->cur != ',')
1157	ERR (", or ] expected while parsing array");	1316	ERR (", or ] expected while parsing array");
1158		1317
1159	++dec->cur;	1318	++dec->cur;
1160		1319
…		…
1295	dSP;	1454	dSP;
1296	int count;	1455	int count;
1297		1456
1298	ENTER; SAVETMPS; PUSHMARK (SP);	1457	ENTER; SAVETMPS; PUSHMARK (SP);
1299	XPUSHs (HeVAL (he));	1458	XPUSHs (HeVAL (he));
		1459	sv_2mortal (sv);
1300		1460
1301	PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN;	1461	PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN;
1302		1462
1303	if (count == 1)	1463	if (count == 1)
1304	{	1464	{
1305	sv = newSVsv (POPs);	1465	sv = newSVsv (POPs);
1306	FREETMPS; LEAVE;	1466	FREETMPS; LEAVE;
1307	return sv;	1467	return sv;
1308	}	1468	}
1309		1469
		1470	SvREFCNT_inc (sv);
1310	FREETMPS; LEAVE;	1471	FREETMPS; LEAVE;
1311	}	1472	}
1312	}	1473	}
1313		1474
1314	if (dec->json.cb_object)	1475	if (dec->json.cb_object)
…		…
1340	DEC_DEC_DEPTH;	1501	DEC_DEC_DEPTH;
1341	return 0;	1502	return 0;
1342	}	1503	}
1343		1504
1344	static SV *	1505	static SV *
		1506	decode_tag (dec_t *dec)
		1507	{
		1508	SV *tag = 0;
		1509	SV *val = 0;
		1510
		1511	if (!(dec->json.flags & F_ALLOW_TAGS))
		1512	ERR ("malformed JSON string, neither array, object, number, string or atom");
		1513
		1514	++dec->cur;
		1515
		1516	tag = decode_sv (dec);
		1517	if (!tag)
		1518	goto fail;
		1519
		1520	if (!SvPOK (tag))
		1521	ERR ("malformed JSON string, (tag) must be a string");
		1522
		1523	if (*dec->cur != ')')
		1524	ERR (") expected after tag");
		1525
		1526	++dec->cur;
		1527
		1528	val = decode_sv (dec);
		1529	if (!val)
		1530	goto fail;
		1531
		1532	if (!SvROK (val) \|\| SvTYPE (SvRV (val)) != SVt_PVAV)
		1533	ERR ("malformed JSON string, tag value must be an array");
		1534
		1535	{
		1536	AV av = (AV )SvRV (val);
		1537	int i, len = av_len (av) + 1;
		1538	HV *stash = gv_stashsv (tag, 0);
		1539	SV *sv;
		1540
		1541	if (!stash)
		1542	ERR ("cannot decode perl-object (package does not exist)");
		1543
		1544	GV *method = gv_fetchmethod_autoload (stash, "THAW", 0);
		1545
		1546	if (!method)
		1547	ERR ("cannot decode perl-object (package does not have a THAW method)");
		1548
		1549	dSP;
		1550
		1551	ENTER; SAVETMPS; PUSHMARK (SP);
		1552	EXTEND (SP, len + 2);
		1553	// we re-bless the reference to get overload and other niceties right
		1554	PUSHs (tag);
		1555	PUSHs (sv_json);
		1556
		1557	for (i = 0; i < len; ++i)
		1558	PUSHs (*av_fetch (av, i, 1));
		1559
		1560	PUTBACK;
		1561	call_sv ((SV *)GvCV (method), G_SCALAR);
		1562	SPAGAIN;
		1563
		1564	SvREFCNT_dec (tag);
		1565	SvREFCNT_dec (val);
		1566	sv = SvREFCNT_inc (POPs);
		1567
		1568	PUTBACK;
		1569
		1570	FREETMPS; LEAVE;
		1571
		1572	return sv;
		1573	}
		1574
		1575	fail:
		1576	SvREFCNT_dec (tag);
		1577	SvREFCNT_dec (val);
		1578	return 0;
		1579	}
		1580
		1581	static SV *
1345	decode_sv (dec_t *dec)	1582	decode_sv (dec_t *dec)
1346	{	1583	{
1347	// the beauty of JSON: you need exactly one character lookahead	1584	// the beauty of JSON: you need exactly one character lookahead
1348	// to parse everything.	1585	// to parse everything.
1349	switch (*dec->cur)	1586	switch (*dec->cur)
1350	{	1587	{
1351	case '"': ++dec->cur; return decode_str (dec);	1588	case '"': ++dec->cur; return decode_str (dec);
1352	case '[': ++dec->cur; return decode_av (dec);	1589	case '[': ++dec->cur; return decode_av (dec);
1353	case '{': ++dec->cur; return decode_hv (dec);	1590	case '{': ++dec->cur; return decode_hv (dec);
		1591	case '(': return decode_tag (dec);
1354		1592
1355	case '-':	1593	case '-':
1356	case '0': case '1': case '2': case '3': case '4':	1594	case '0': case '1': case '2': case '3': case '4':
1357	case '5': case '6': case '7': case '8': case '9':	1595	case '5': case '6': case '7': case '8': case '9':
1358	return decode_num (dec);	1596	return decode_num (dec);
…		…
1360	case 't':	1598	case 't':
1361	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))	1599	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4))
1362	{	1600	{
1363	dec->cur += 4;	1601	dec->cur += 4;
1364	#if JSON_SLOW	1602	#if JSON_SLOW
1365	json_true = get_bool ("JSON::XS::true");	1603	types_true = get_bool ("Types::Serialiser::true");
1366	#endif	1604	#endif
1367	return newSVsv (json_true);	1605	return newSVsv (types_true);
1368	}	1606	}
1369	else	1607	else
1370	ERR ("'true' expected");	1608	ERR ("'true' expected");
1371		1609
1372	break;	1610	break;
…		…
1374	case 'f':	1612	case 'f':
1375	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))	1613	if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5))
1376	{	1614	{
1377	dec->cur += 5;	1615	dec->cur += 5;
1378	#if JSON_SLOW	1616	#if JSON_SLOW
1379	json_false = get_bool ("JSON::XS::false");	1617	types_false = get_bool ("Types::Serialiser::false");
1380	#endif	1618	#endif
1381	return newSVsv (json_false);	1619	return newSVsv (types_false);
1382	}	1620	}
1383	else	1621	else
1384	ERR ("'false' expected");	1622	ERR ("'false' expected");
1385		1623
1386	break;	1624	break;
…		…
1395	ERR ("'null' expected");	1633	ERR ("'null' expected");
1396		1634
1397	break;	1635	break;
1398		1636
1399	default:	1637	default:
1400	ERR ("malformed JSON string, neither array, object, number, string or atom");	1638	ERR ("malformed JSON string, neither tag, array, object, number, string or atom");
1401	break;	1639	break;
1402	}	1640	}
1403		1641
1404	fail:	1642	fail:
1405	return 0;	1643	return 0;
1406	}	1644	}
1407		1645
1408	static SV *	1646	static SV *
1409	decode_json (SV string, JSON json, STRLEN *offset_return)	1647	decode_json (SV string, JSON json, char **offset_return)
1410	{	1648	{
1411	dec_t dec;	1649	dec_t dec;
1412	STRLEN offset;
1413	SV *sv;	1650	SV *sv;
1414		1651
		1652	/* work around bugs in 5.10 where manipulating magic values
		1653	* makes perl ignore the magic in subsequent accesses.
		1654	* also make a copy of non-PV values, to get them into a clean
		1655	* state (SvPV should do that, but it's buggy, see below).
		1656	*/
1415	SvGETMAGIC (string);	1657	/SvGETMAGIC (string);/
		1658	if (SvMAGICAL (string) \|\| !SvPOK (string))
		1659	string = sv_2mortal (newSVsv (string));
		1660
1416	SvUPGRADE (string, SVt_PV);	1661	SvUPGRADE (string, SVt_PV);
1417		1662
		1663	/* work around a bug in perl 5.10, which causes SvCUR to fail an
		1664	* assertion with -DDEBUGGING, although SvCUR is documented to
		1665	* return the xpv_cur field which certainly exists after upgrading.
		1666	* according to nicholas clark, calling SvPOK fixes this.
		1667	* But it doesn't fix it, so try another workaround, call SvPV_nolen
		1668	* and hope for the best.
		1669	* Damnit, SvPV_nolen still trips over yet another assertion. This
		1670	* assertion business is seriously broken, try yet another workaround
		1671	* for the broken -DDEBUGGING.
		1672	*/
		1673	{
		1674	#ifdef DEBUGGING
		1675	STRLEN offset = SvOK (string) ? sv_len (string) : 0;
		1676	#else
		1677	STRLEN offset = SvCUR (string);
		1678	#endif
		1679
1418	if (SvCUR (string) > json->max_size && json->max_size)	1680	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",	1681	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);	1682	(unsigned long)SvCUR (string), (unsigned long)json->max_size);
		1683	}
1421		1684
1422	if (json->flags & F_UTF8)	1685	if (DECODE_WANTS_OCTETS (json))
1423	sv_utf8_downgrade (string, 0);	1686	sv_utf8_downgrade (string, 0);
1424	else	1687	else
1425	sv_utf8_upgrade (string);	1688	sv_utf8_upgrade (string);
1426		1689
1427	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP	1690	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP
…		…
1437		1700
1438	*dec.end = 0; // this should basically be a nop, too, but make sure it's there	1701	*dec.end = 0; // this should basically be a nop, too, but make sure it's there
1439		1702
1440	decode_ws (&dec);	1703	decode_ws (&dec);
1441	sv = decode_sv (&dec);	1704	sv = decode_sv (&dec);
		1705
		1706	if (offset_return)
		1707	*offset_return = dec.cur;
1442		1708
1443	if (!(offset_return \|\| !sv))	1709	if (!(offset_return \|\| !sv))
1444	{	1710	{
1445	// check for trailing garbage	1711	// check for trailing garbage
1446	decode_ws (&dec);	1712	decode_ws (&dec);
…		…
1449	{	1715	{
1450	dec.err = "garbage after JSON object";	1716	dec.err = "garbage after JSON object";
1451	SvREFCNT_dec (sv);	1717	SvREFCNT_dec (sv);
1452	sv = 0;	1718	sv = 0;
1453	}	1719	}
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	}	1720	}
1465		1721
1466	if (!sv)	1722	if (!sv)
1467	{	1723	{
1468	SV *uni = sv_newmortal ();	1724	SV *uni = sv_newmortal ();
…		…
1474	SAVEVPTR (PL_curcop);	1730	SAVEVPTR (PL_curcop);
1475	PL_curcop = &cop;	1731	PL_curcop = &cop;
1476	pv_uni_display (uni, dec.cur, dec.end - dec.cur, 20, UNI_DISPLAY_QQ);	1732	pv_uni_display (uni, dec.cur, dec.end - dec.cur, 20, UNI_DISPLAY_QQ);
1477	LEAVE;	1733	LEAVE;
1478		1734
1479	croak ("%s, at character offset %d [\"%s\"]",	1735	croak ("%s, at character offset %d (before \"%s\")",
1480	dec.err,	1736	dec.err,
1481	(int)offset,	1737	(int)ptr_to_index (string, dec.cur),
1482	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");	1738	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");
1483	}	1739	}
1484		1740
1485	sv = sv_2mortal (sv);	1741	sv = sv_2mortal (sv);
1486		1742
…		…
1495		1751
1496	static void	1752	static void
1497	incr_parse (JSON *self)	1753	incr_parse (JSON *self)
1498	{	1754	{
1499	const char *p = SvPVX (self->incr_text) + self->incr_pos;	1755	const char *p = SvPVX (self->incr_text) + self->incr_pos;
		1756
		1757	// the state machine here is a bit convoluted and could be simplified a lot
		1758	// but this would make it slower, so...
1500		1759
1501	for (;;)	1760	for (;;)
1502	{	1761	{
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	1762	//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)	1763	switch (self->incr_mode)
1505	{	1764	{
1506	// only used for intiial whitespace skipping	1765	// only used for initial whitespace skipping
1507	case INCR_M_WS:	1766	case INCR_M_WS:
1508	for (;;)	1767	for (;;)
1509	{	1768	{
1510	if (*p > 0x20)	1769	if (*p > 0x20)
1511	{	1770	{
		1771	if (*p == '#')
		1772	{
		1773	self->incr_mode = INCR_M_C0;
		1774	goto incr_m_c;
		1775	}
		1776	else
		1777	{
1512	self->incr_mode = INCR_M_JSON;	1778	self->incr_mode = INCR_M_JSON;
1513	goto incr_m_json;	1779	goto incr_m_json;
		1780	}
1514	}	1781	}
1515	else if (!*p)	1782	else if (!*p)
1516	goto interrupt;	1783	goto interrupt;
1517		1784
1518	++p;	1785	++p;
…		…
1524	goto interrupt;	1791	goto interrupt;
1525		1792
1526	++p;	1793	++p;
1527	self->incr_mode = INCR_M_STR;	1794	self->incr_mode = INCR_M_STR;
1528	goto incr_m_str;	1795	goto incr_m_str;
		1796
		1797	// inside #-style comments
		1798	case INCR_M_C0:
		1799	case INCR_M_C1:
		1800	incr_m_c:
		1801	for (;;)
		1802	{
		1803	if (*p == '\n')
		1804	{
		1805	self->incr_mode = self->incr_mode == INCR_M_C0 ? INCR_M_WS : INCR_M_JSON;
		1806	break;
		1807	}
		1808	else if (!*p)
		1809	goto interrupt;
		1810
		1811	++p;
		1812	}
		1813
		1814	break;
1529		1815
1530	// inside a string	1816	// inside a string
1531	case INCR_M_STR:	1817	case INCR_M_STR:
1532	incr_m_str:	1818	incr_m_str:
1533	for (;;)	1819	for (;;)
…		…
1584	self->incr_mode = INCR_M_STR;	1870	self->incr_mode = INCR_M_STR;
1585	goto incr_m_str;	1871	goto incr_m_str;
1586		1872
1587	case '[':	1873	case '[':
1588	case '{':	1874	case '{':
		1875	case '(':
1589	if (++self->incr_nest > self->max_depth)	1876	if (++self->incr_nest > self->max_depth)
1590	croak (ERR_NESTING_EXCEEDED);	1877	croak (ERR_NESTING_EXCEEDED);
1591	break;	1878	break;
1592		1879
1593	case ']':	1880	case ']':
1594	case '}':	1881	case '}':
1595	if (!--self->incr_nest)	1882	if (--self->incr_nest <= 0)
1596	goto interrupt;	1883	goto interrupt;
		1884	break;
		1885
		1886	case ')':
		1887	--self->incr_nest;
		1888	break;
		1889
		1890	case '#':
		1891	self->incr_mode = INCR_M_C1;
		1892	goto incr_m_c;
1597	}	1893	}
1598	}	1894	}
1599	}	1895	}
1600		1896
1601	modechange:	1897	modechange:
1602	;	1898	;
1603	}	1899	}
1604		1900
1605	interrupt:	1901	interrupt:
1606	self->incr_pos = p - SvPVX (self->incr_text);	1902	self->incr_pos = p - SvPVX (self->incr_text);
		1903	//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	1904	//printf ("return pos %d mode %d nest %d\n", self->incr_pos, self->incr_mode, self->incr_nest);//D
1608	}	1905	}
1609		1906
1610	/////////////////////////////////////////////////////////////////////////////	1907	/////////////////////////////////////////////////////////////////////////////
1611	// XS interface functions	1908	// XS interface functions
…		…
1621	i >= '0' && i <= '9' ? i - '0'	1918	i >= '0' && i <= '9' ? i - '0'
1622	: i >= 'a' && i <= 'f' ? i - 'a' + 10	1919	: i >= 'a' && i <= 'f' ? i - 'a' + 10
1623	: i >= 'A' && i <= 'F' ? i - 'A' + 10	1920	: i >= 'A' && i <= 'F' ? i - 'A' + 10
1624	: -1;	1921	: -1;
1625		1922
1626	json_stash = gv_stashpv ("JSON::XS" , 1);	1923	json_stash = gv_stashpv ("JSON::XS" , 1);
1627	json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1);	1924	types_boolean_stash = gv_stashpv ("Types::Serialiser::Boolean", 1);
1628		1925
1629	json_true = get_bool ("JSON::XS::true");	1926	types_true = get_bool ("Types::Serialiser::true");
1630	json_false = get_bool ("JSON::XS::false");	1927	types_false = get_bool ("Types::Serialiser::false");
		1928
		1929	sv_json = newSVpv ("JSON", 0);
		1930	SvREADONLY_on (sv_json);
		1931
		1932	CvNODEBUG_on (get_cv ("JSON::XS::incr_text", 0)); /* the debugger completely breaks lvalue subs */
1631	}	1933	}
1632		1934
1633	PROTOTYPES: DISABLE	1935	PROTOTYPES: DISABLE
1634		1936
1635	void CLONE (...)	1937	void CLONE (...)
1636	CODE:	1938	CODE:
1637	json_stash = 0;	1939	json_stash = 0;
1638	json_boolean_stash = 0;	1940	types_boolean_stash = 0;
1639		1941
1640	void new (char *klass)	1942	void new (char *klass)
1641	PPCODE:	1943	PPCODE:
1642	{	1944	{
1643	SV *pv = NEWSV (0, sizeof (JSON));	1945	SV *pv = NEWSV (0, sizeof (JSON));
1644	SvPOK_only (pv);	1946	SvPOK_only (pv);
1645	json_init ((JSON *)SvPVX (pv));	1947	json_init ((JSON *)SvPVX (pv));
1646	XPUSHs (sv_2mortal (sv_bless (	1948	XPUSHs (sv_2mortal (sv_bless (
1647	newRV_noinc (pv),	1949	newRV_noinc (pv),
1648	strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1)	1950	strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1)
…		…
1663	shrink = F_SHRINK	1965	shrink = F_SHRINK
1664	allow_blessed = F_ALLOW_BLESSED	1966	allow_blessed = F_ALLOW_BLESSED
1665	convert_blessed = F_CONV_BLESSED	1967	convert_blessed = F_CONV_BLESSED
1666	relaxed = F_RELAXED	1968	relaxed = F_RELAXED
1667	allow_unknown = F_ALLOW_UNKNOWN	1969	allow_unknown = F_ALLOW_UNKNOWN
		1970	allow_tags = F_ALLOW_TAGS
1668	PPCODE:	1971	PPCODE:
1669	{	1972	{
1670	if (enable)	1973	if (enable)
1671	self->flags \|= ix;	1974	self->flags \|= ix;
1672	else	1975	else
…		…
1688	get_shrink = F_SHRINK	1991	get_shrink = F_SHRINK
1689	get_allow_blessed = F_ALLOW_BLESSED	1992	get_allow_blessed = F_ALLOW_BLESSED
1690	get_convert_blessed = F_CONV_BLESSED	1993	get_convert_blessed = F_CONV_BLESSED
1691	get_relaxed = F_RELAXED	1994	get_relaxed = F_RELAXED
1692	get_allow_unknown = F_ALLOW_UNKNOWN	1995	get_allow_unknown = F_ALLOW_UNKNOWN
		1996	get_allow_tags = F_ALLOW_TAGS
1693	PPCODE:	1997	PPCODE:
1694	XPUSHs (boolSV (self->flags & ix));	1998	XPUSHs (boolSV (self->flags & ix));
1695		1999
1696	void max_depth (JSON *self, U32 max_depth = 0x80000000UL)	2000	void max_depth (JSON *self, U32 max_depth = 0x80000000UL)
1697	PPCODE:	2001	PPCODE:
…		…
1725	}	2029	}
1726		2030
1727	void filter_json_single_key_object (JSON self, SV key, SV *cb = &PL_sv_undef)	2031	void filter_json_single_key_object (JSON self, SV key, SV *cb = &PL_sv_undef)
1728	PPCODE:	2032	PPCODE:
1729	{	2033	{
1730	if (!self->cb_sk_object)	2034	if (!self->cb_sk_object)
1731	self->cb_sk_object = newHV ();	2035	self->cb_sk_object = newHV ();
1732		2036
1733	if (SvOK (cb))	2037	if (SvOK (cb))
1734	hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0);	2038	hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0);
1735	else	2039	else
…		…
1746	XPUSHs (ST (0));	2050	XPUSHs (ST (0));
1747	}	2051	}
1748		2052
1749	void encode (JSON self, SV scalar)	2053	void encode (JSON self, SV scalar)
1750	PPCODE:	2054	PPCODE:
1751	XPUSHs (encode_json (scalar, self));	2055	PUTBACK; scalar = encode_json (scalar, self); SPAGAIN;
		2056	XPUSHs (scalar);
1752		2057
1753	void decode (JSON self, SV jsonstr)	2058	void decode (JSON self, SV jsonstr)
1754	PPCODE:	2059	PPCODE:
1755	XPUSHs (decode_json (jsonstr, self, 0));	2060	PUTBACK; jsonstr = decode_json (jsonstr, self, 0); SPAGAIN;
		2061	XPUSHs (jsonstr);
1756		2062
1757	void decode_prefix (JSON self, SV jsonstr)	2063	void decode_prefix (JSON self, SV jsonstr)
1758	PPCODE:	2064	PPCODE:
1759	{	2065	{
1760	STRLEN offset;	2066	SV *sv;
		2067	char *offset;
		2068	PUTBACK; sv = decode_json (jsonstr, self, &offset); SPAGAIN;
1761	EXTEND (SP, 2);	2069	EXTEND (SP, 2);
1762	PUSHs (decode_json (jsonstr, self, &offset));	2070	PUSHs (sv);
1763	PUSHs (sv_2mortal (newSVuv (offset)));	2071	PUSHs (sv_2mortal (newSVuv (ptr_to_index (jsonstr, offset))));
1764	}	2072	}
1765		2073
1766	void incr_parse (JSON self, SV jsonstr = 0)	2074	void incr_parse (JSON self, SV jsonstr = 0)
1767	PPCODE:	2075	PPCODE:
1768	{	2076	{
1769	if (!self->incr_text)	2077	if (!self->incr_text)
1770	self->incr_text = newSVpvn ("", 0);	2078	self->incr_text = newSVpvn ("", 0);
		2079
		2080	/* if utf8-ness doesn't match the decoder, need to upgrade/downgrade */
		2081	if (!DECODE_WANTS_OCTETS (self) == !SvUTF8 (self->incr_text))
		2082	if (DECODE_WANTS_OCTETS (self))
		2083	{
		2084	if (self->incr_pos)
		2085	self->incr_pos = utf8_length ((U8 *)SvPVX (self->incr_text),
		2086	(U8 *)SvPVX (self->incr_text) + self->incr_pos);
		2087
		2088	sv_utf8_downgrade (self->incr_text, 0);
		2089	}
		2090	else
		2091	{
		2092	sv_utf8_upgrade (self->incr_text);
		2093
		2094	if (self->incr_pos)
		2095	self->incr_pos = utf8_hop ((U8 *)SvPVX (self->incr_text), self->incr_pos)
		2096	- (U8 *)SvPVX (self->incr_text);
		2097	}
1771		2098
1772	// append data, if any	2099	// append data, if any
1773	if (jsonstr)	2100	if (jsonstr)
1774	{	2101	{
		2102	/* make sure both strings have same encoding */
1775	if (SvUTF8 (jsonstr) && !SvUTF8 (self->incr_text))	2103	if (SvUTF8 (jsonstr) != SvUTF8 (self->incr_text))
		2104	if (SvUTF8 (jsonstr))
		2105	sv_utf8_downgrade (jsonstr, 0);
1776	{	2106	else
1777	/* utf-8-ness differs, need to upgrade */
1778	sv_utf8_upgrade (self->incr_text);	2107	sv_utf8_upgrade (jsonstr);
1779		2108
1780	if (self->incr_pos)	2109	/* 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	{	2110	{
1786	STRLEN len;	2111	STRLEN len;
1787	const char *str = SvPV (jsonstr, len);	2112	const char *str = SvPV (jsonstr, len);
1788	SvGROW (self->incr_text, SvCUR (self->incr_text) + len + 1);	2113	STRLEN cur = SvCUR (self->incr_text);
		2114
		2115	if (SvLEN (self->incr_text) <= cur + len)
		2116	SvGROW (self->incr_text, cur + (len < (cur >> 2) ? cur >> 2 : len) + 1);
		2117
1789	Move (str, SvEND (self->incr_text), len, char);	2118	Move (str, SvEND (self->incr_text), len, char);
1790	SvCUR_set (self->incr_text, SvCUR (self->incr_text) + len);	2119	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	2120	*SvEND (self->incr_text) = 0; // this should basically be a nop, too, but make sure it's there
1792	}	2121	}
1793	}	2122	}
1794		2123
1795	if (GIMME_V != G_VOID)	2124	if (GIMME_V != G_VOID)
1796	do	2125	do
1797	{	2126	{
		2127	SV *sv;
1798	STRLEN offset;	2128	char *offset;
1799		2129
1800	if (!INCR_DONE (self))	2130	if (!INCR_DONE (self))
1801	{	2131	{
1802	incr_parse (self);	2132	incr_parse (self);
1803		2133
1804	if (self->incr_pos > self->max_size && self->max_size)	2134	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",	2135	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);	2136	(unsigned long)self->incr_pos, (unsigned long)self->max_size);
1807		2137
1808	if (!INCR_DONE (self))	2138	if (!INCR_DONE (self))
		2139	{
		2140	// as an optimisation, do not accumulate white space in the incr buffer
		2141	if (self->incr_mode == INCR_M_WS && self->incr_pos)
		2142	{
		2143	self->incr_pos = 0;
		2144	SvCUR_set (self->incr_text, 0);
		2145	}
		2146
1809	break;	2147	break;
		2148	}
1810	}	2149	}
1811		2150
1812	XPUSHs (decode_json (self->incr_text, self, &offset));	2151	PUTBACK; sv = decode_json (self->incr_text, self, &offset); SPAGAIN;
		2152	XPUSHs (sv);
1813		2153
1814	sv_chop (self->incr_text, SvPV_nolen (self->incr_text) + offset);
1815	self->incr_pos -= offset;	2154	self->incr_pos -= offset - SvPVX (self->incr_text);
1816	self->incr_nest = 0;	2155	self->incr_nest = 0;
1817	self->incr_mode = 0;	2156	self->incr_mode = 0;
		2157
		2158	sv_chop (self->incr_text, offset);
1818	}	2159	}
1819	while (GIMME_V == G_ARRAY);	2160	while (GIMME_V == G_ARRAY);
1820	}	2161	}
1821		2162
1822	SV incr_text (JSON self)	2163	SV incr_text (JSON self)
…		…
1841	self->incr_nest = 0;	2182	self->incr_nest = 0;
1842	self->incr_mode = 0;	2183	self->incr_mode = 0;
1843	}	2184	}
1844	}	2185	}
1845		2186
		2187	void incr_reset (JSON *self)
		2188	CODE:
		2189	{
		2190	SvREFCNT_dec (self->incr_text);
		2191	self->incr_text = 0;
		2192	self->incr_pos = 0;
		2193	self->incr_nest = 0;
		2194	self->incr_mode = 0;
		2195	}
		2196
1846	void DESTROY (JSON *self)	2197	void DESTROY (JSON *self)
1847	CODE:	2198	CODE:
1848	SvREFCNT_dec (self->cb_sk_object);	2199	SvREFCNT_dec (self->cb_sk_object);
1849	SvREFCNT_dec (self->cb_object);	2200	SvREFCNT_dec (self->cb_object);
1850	SvREFCNT_dec (self->incr_text);	2201	SvREFCNT_dec (self->incr_text);
1851		2202
1852	PROTOTYPES: ENABLE	2203	PROTOTYPES: ENABLE
1853		2204
1854	void encode_json (SV *scalar)	2205	void encode_json (SV *scalar)
1855	ALIAS:
1856	to_json_ = 0
1857	encode_json = F_UTF8
1858	PPCODE:	2206	PPCODE:
1859	{	2207	{
1860	JSON json;	2208	JSON json;
1861	json_init (&json);	2209	json_init (&json);
1862	json.flags \|= ix;	2210	json.flags \|= F_UTF8;
1863	XPUSHs (encode_json (scalar, &json));	2211	PUTBACK; scalar = encode_json (scalar, &json); SPAGAIN;
		2212	XPUSHs (scalar);
1864	}	2213	}
1865		2214
1866	void decode_json (SV *jsonstr)	2215	void decode_json (SV *jsonstr)
1867	ALIAS:
1868	from_json_ = 0
1869	decode_json = F_UTF8
1870	PPCODE:	2216	PPCODE:
1871	{	2217	{
1872	JSON json;	2218	JSON json;
1873	json_init (&json);	2219	json_init (&json);
1874	json.flags \|= ix;	2220	json.flags \|= F_UTF8;
1875	XPUSHs (decode_json (jsonstr, &json, 0));	2221	PUTBACK; jsonstr = decode_json (jsonstr, &json, 0); SPAGAIN;
		2222	XPUSHs (jsonstr);
1876	}	2223	}
1877		2224
1878

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Comparing JSON-XS/XS.xs (file contents): Revision 1.85 by root, Sat Apr 5 18:15:46 2008 UTC vs. Revision 1.119 by root, Mon Oct 28 23:19:54 2013 UTC

Diff Legend

Comparing JSON-XS/XS.xs (file contents):
Revision 1.85 by root, Sat Apr 5 18:15:46 2008 UTC vs.
Revision 1.119 by root, Mon Oct 28 23:19:54 2013 UTC