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

Comparing JSON-XS/XS.xs (file contents):
Revision 1.1 by root, Thu Mar 22 16:40:16 2007 UTC vs.
Revision 1.27 by root, Mon Apr 9 05:09:57 2007 UTC

…		…
3	#include "XSUB.h"	3	#include "XSUB.h"
4		4
5	#include "assert.h"	5	#include "assert.h"
6	#include "string.h"	6	#include "string.h"
7	#include "stdlib.h"	7	#include "stdlib.h"
		8	#include "stdio.h"
8		9
		10	#if defined(__BORLANDC__) \|\| defined(_MSC_VER)
		11	# define snprintf _snprintf // C compilers have this in stdio.h
		12	#endif
		13
9	#define F_ASCII 0x00000001	14	#define F_ASCII 0x00000001UL
10	#define F_UTF8 0x00000002	15	#define F_UTF8 0x00000002UL
11	#define F_INDENT 0x00000004	16	#define F_INDENT 0x00000004UL
12	#define F_CANONICAL 0x00000008	17	#define F_CANONICAL 0x00000008UL
13	#define F_SPACE_BEFORE 0x00000010	18	#define F_SPACE_BEFORE 0x00000010UL
14	#define F_SPACE_AFTER 0x00000020	19	#define F_SPACE_AFTER 0x00000020UL
		20	#define F_ALLOW_NONREF 0x00000080UL
15	#define F_JSON_RPC 0x00000040	21	#define F_SHRINK 0x00000100UL
		22	#define F_MAXDEPTH 0xf8000000UL
		23	#define S_MAXDEPTH 27
16		24
17	#define F_DEFAULT 0	25	#define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH))
		26
		27	// F_SELFCONVERT? <=> to_json/toJson
		28	// F_BLESSED? <=> { $__class__$ => }
		29
		30	#define F_PRETTY F_INDENT \| F_SPACE_BEFORE \| F_SPACE_AFTER
		31	#define F_DEFAULT (9UL << S_MAXDEPTH)
18		32
19	#define INIT_SIZE 32 // initial scalar size to be allocated	33	#define INIT_SIZE 32 // initial scalar size to be allocated
		34	#define INDENT_STEP 3 // spaces per indentation level
		35
		36	#define UTF8_MAX_LEN 11 // for perls UTF-X: max. number of octets per character
		37	#define SHORT_STRING_LEN 512 // special-case strings of up to this size
20		38
21	#define SB do {	39	#define SB do {
22	#define SE } while (0)	40	#define SE } while (0)
23		41
24	static HV *json_stash;	42	static HV *json_stash; // JSON::XS::
		43
		44	/////////////////////////////////////////////////////////////////////////////
		45	// utility functions
		46
		47	static UV *
		48	SvJSON (SV *sv)
		49	{
		50	if (!(SvROK (sv) && SvOBJECT (SvRV (sv)) && SvSTASH (SvRV (sv)) == json_stash))
		51	croak ("object is not of type JSON::XS");
		52
		53	return &SvUVX (SvRV (sv));
		54	}
		55
		56	static void
		57	shrink (SV *sv)
		58	{
		59	sv_utf8_downgrade (sv, 1);
		60	if (SvLEN (sv) > SvCUR (sv) + 1)
		61	{
		62	#ifdef SvPV_shrink_to_cur
		63	SvPV_shrink_to_cur (sv);
		64	#elif defined (SvPV_renew)
		65	SvPV_renew (sv, SvCUR (sv) + 1);
		66	#endif
		67	}
		68	}
		69
		70	// decode an utf-8 character and return it, or (UV)-1 in
		71	// case of an error.
		72	// we special-case "safe" characters from U+80 .. U+7FF,
		73	// but use the very good perl function to parse anything else.
		74	// note that we never call this function for a ascii codepoints
		75	static UV
		76	decode_utf8 (unsigned char s, STRLEN len, STRLEN clen)
		77	{
		78	if (s[0] > 0xdf \|\| s[0] < 0xc2)
		79	return utf8n_to_uvuni (s, len, clen, UTF8_CHECK_ONLY);
		80	else if (len > 1 && s[1] >= 0x80 && s[1] <= 0xbf)
		81	{
		82	*clen = 2;
		83	return ((s[0] & 0x1f) << 6) \| (s[1] & 0x3f);
		84	}
		85	else
		86	{
		87	*clen = (STRLEN)-1;
		88	return (UV)-1;
		89	}
		90	}
		91
		92	/////////////////////////////////////////////////////////////////////////////
		93	// encoder
25		94
26	// structure used for encoding JSON	95	// structure used for encoding JSON
27	typedef struct	96	typedef struct
28	{	97	{
29	char *cur;	98	char *cur; // SvPVX (sv) + current output position
30	STRLEN len; // SvLEN (sv)
31	char *end; // SvEND (sv)	99	char *end; // SvEND (sv)
32	SV *sv;	100	SV *sv; // result scalar
33	UV flags;	101	U32 flags; // F_*
34	int max_recurse;	102	U32 indent; // indentation level
35	int indent;	103	U32 maxdepth; // max. indentation/recursion level
36	} enc_t;	104	} enc_t;
37
38	// structure used for decoding JSON
39	typedef struct
40	{
41	char *cur;
42	char *end;
43	char *err;
44	UV flags;
45	} dec_t;
46
47	static UV *
48	SvJSON (SV *sv)
49	{
50	if (!(SvROK (sv) && SvOBJECT (SvRV (sv)) && SvSTASH (SvRV (sv)) == json_stash))
51	croak ("object is not of type JSON::XS");
52
53	return &SvUVX (SvRV (sv));
54	}
55
56	/////////////////////////////////////////////////////////////////////////////
57		105
58	static void	106	static void
59	need (enc_t *enc, STRLEN len)	107	need (enc_t *enc, STRLEN len)
60	{	108	{
61	if (enc->cur + len >= enc->end)	109	if (enc->cur + len >= enc->end)
62	{	110	{
63	STRLEN cur = enc->cur - SvPVX (enc->sv);	111	STRLEN cur = enc->cur - SvPVX (enc->sv);
64	SvGROW (enc->sv, cur + len + 1);	112	SvGROW (enc->sv, cur + len + 1);
65	enc->cur = SvPVX (enc->sv) + cur;	113	enc->cur = SvPVX (enc->sv) + cur;
66	enc->end = SvEND (enc->sv);	114	enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1;
67	}	115	}
68	}	116	}
69		117
70	static void	118	static void
71	encode_ch (enc_t *enc, char ch)	119	encode_ch (enc_t *enc, char ch)
…		…
77	static void	125	static void
78	encode_str (enc_t enc, char str, STRLEN len, int is_utf8)	126	encode_str (enc_t enc, char str, STRLEN len, int is_utf8)
79	{	127	{
80	char *end = str + len;	128	char *end = str + len;
81		129
		130	need (enc, len);
		131
82	while (str < end)	132	while (str < end)
83	{	133	{
84	unsigned char ch = (unsigned char )str;	134	unsigned char ch = (unsigned char )str;
		135
85	if (ch >= 0x20 && ch < 0x80) // most common case	136	if (ch >= 0x20 && ch < 0x80) // most common case
86	{	137	{
		138	if (ch == '"') // but with slow exceptions
		139	{
		140	need (enc, len += 1);
		141	*enc->cur++ = '\\';
		142	*enc->cur++ = '"';
		143	}
		144	else if (ch == '\\')
		145	{
		146	need (enc, len += 1);
		147	*enc->cur++ = '\\';
		148	*enc->cur++ = '\\';
		149	}
		150	else
87	*enc->cur++ = ch;	151	*enc->cur++ = ch;
		152
88	str++;	153	++str;
89	}	154	}
90	else	155	else
91	{	156	{
92	STRLEN clen;	157	switch (ch)
93	UV uch;
94
95	if (is_utf8)
96	{	158	{
97	uch = utf8n_to_uvuni (str, end - str, &clen, UTF8_CHECK_ONLY);	159	case '\010': need (enc, len += 1); enc->cur++ = '\\'; enc->cur++ = 'b'; ++str; break;
98	if (clen < 0)	160	case '\011': need (enc, len += 1); enc->cur++ = '\\'; enc->cur++ = 't'; ++str; break;
99	croak ("malformed UTF-8 character in string, cannot convert to JSON");	161	case '\012': need (enc, len += 1); enc->cur++ = '\\'; enc->cur++ = 'n'; ++str; break;
100	}	162	case '\014': need (enc, len += 1); enc->cur++ = '\\'; enc->cur++ = 'f'; ++str; break;
101	else	163	case '\015': need (enc, len += 1); enc->cur++ = '\\'; enc->cur++ = 'r'; ++str; break;
102	{
103	uch = ch;
104	clen = 1;
105	}
106		164
107	need (enc, len += 6);	165	default:
108
109	if (uch < 0xa0 \|\| enc->flags & F_ASCII)
110	{
111	if (uch > 0xFFFFUL)
112	{	166	{
		167	STRLEN clen;
		168	UV uch;
		169
		170	if (is_utf8)
		171	{
		172	//uch = utf8n_to_uvuni (str, end - str, &clen, UTF8_CHECK_ONLY);
		173	uch = decode_utf8 (str, end - str, &clen);
		174	if (clen == (STRLEN)-1)
		175	croak ("malformed or illegal unicode character in string [%.11s], cannot convert to JSON", str);
		176	}
		177	else
		178	{
		179	uch = ch;
113	len += 6;	180	clen = 1;
		181	}
		182
		183	if (uch > 0x10FFFFUL)
		184	croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);
		185
		186	if (uch < 0x80 \|\| enc->flags & F_ASCII)
		187	{
		188	if (uch > 0xFFFFUL)
		189	{
114	need (enc, len += 6);	190	need (enc, len += 11);
115	sprintf (enc->cur, "\\u%04x\\u%04x",	191	sprintf (enc->cur, "\\u%04x\\u%04x",
116	(uch - 0x10000) / 0x400 + 0xD800,	192	(int)((uch - 0x10000) / 0x400 + 0xD800),
117	(uch - 0x10000) % 0x400 + 0xDC00);	193	(int)((uch - 0x10000) % 0x400 + 0xDC00));
118	enc->cur += 12;	194	enc->cur += 12;
		195	}
		196	else
		197	{
		198	static char hexdigit [16] = "0123456789abcdef";
		199	need (enc, len += 5);
		200	*enc->cur++ = '\\';
		201	*enc->cur++ = 'u';
		202	*enc->cur++ = hexdigit [ uch >> 12 ];
		203	*enc->cur++ = hexdigit [(uch >> 8) & 15];
		204	*enc->cur++ = hexdigit [(uch >> 4) & 15];
		205	*enc->cur++ = hexdigit [(uch >> 0) & 15];
		206	}
		207
		208	str += clen;
119	}	209	}
		210	else if (is_utf8)
		211	{
		212	need (enc, len += clen);
		213	do
		214	{
		215	enc->cur++ = str++;
		216	}
		217	while (--clen);
		218	}
120	else	219	else
121	{	220	{
122	sprintf (enc->cur, "\\u%04x", uch);	221	need (enc, len += UTF8_MAX_LEN - 1); // never more than 11 bytes needed
123	enc->cur += 6;	222	enc->cur = uvuni_to_utf8_flags (enc->cur, uch, 0);
		223	++str;
		224	}
124	}	225	}
125	}	226	}
126	else if (is_utf8)
127	{
128	memcpy (enc->cur, str, clen);
129	enc->cur += clen;
130	}
131	else
132	enc->cur = uvuni_to_utf8_flags (enc->cur, uch, 0);
133
134	str += clen;
135	}	227	}
136		228
137	--len;	229	--len;
138	}	230	}
139	}	231	}
140		232
141	#define INDENT SB \	233	static void
		234	encode_indent (enc_t *enc)
		235	{
142	if (enc->flags & F_INDENT) \	236	if (enc->flags & F_INDENT)
143	{ \	237	{
144	int i_; \	238	int spaces = enc->indent * INDENT_STEP;
145	need (enc, enc->indent); \
146	for (i_ = enc->indent * 3; i_--; )\
147	encode_ch (enc, ' '); \
148	} \
149	SE
150		239
151	#define SPACE SB if (enc->flags & F_INDENT) { need (enc, 1); encode_ch (enc, ' '); } SE	240	need (enc, spaces);
152	#define NL SB if (enc->flags & F_INDENT) { need (enc, 1); encode_ch (enc, '\n'); } SE	241	memset (enc->cur, ' ', spaces);
153	#define COMMA SB \	242	enc->cur += spaces;
		243	}
		244	}
		245
		246	static void
		247	encode_space (enc_t *enc)
		248	{
		249	need (enc, 1);
154	encode_ch (enc, ','); \	250	encode_ch (enc, ' ');
		251	}
		252
		253	static void
		254	encode_nl (enc_t *enc)
		255	{
155	if (enc->flags & F_INDENT) \	256	if (enc->flags & F_INDENT)
156	NL; \	257	{
		258	need (enc, 1);
		259	encode_ch (enc, '\n');
		260	}
		261	}
		262
		263	static void
		264	encode_comma (enc_t *enc)
		265	{
		266	encode_ch (enc, ',');
		267
		268	if (enc->flags & F_INDENT)
		269	encode_nl (enc);
157	else if (enc->flags & F_SPACE_AFTER) \	270	else if (enc->flags & F_SPACE_AFTER)
158	SPACE; \	271	encode_space (enc);
159	SE	272	}
160		273
161	static void encode_sv (enc_t enc, SV sv);	274	static void encode_sv (enc_t enc, SV sv);
162		275
163	static void	276	static void
164	encode_av (enc_t enc, AV av)	277	encode_av (enc_t enc, AV av)
165	{	278	{
166	int i, len = av_len (av);	279	int i, len = av_len (av);
167		280
168	encode_ch (enc, '['); NL;	281	if (enc->indent >= enc->maxdepth)
		282	croak ("data structure too deep (hit recursion limit)");
		283
		284	encode_ch (enc, '['); encode_nl (enc);
169	++enc->indent;	285	++enc->indent;
170		286
171	for (i = 0; i <= len; ++i)	287	for (i = 0; i <= len; ++i)
172	{	288	{
173	INDENT;	289	encode_indent (enc);
174	encode_sv (enc, *av_fetch (av, i, 0));	290	encode_sv (enc, *av_fetch (av, i, 0));
175		291
176	if (i < len)	292	if (i < len)
177	COMMA;	293	encode_comma (enc);
178	}	294	}
179		295
180	NL;	296	encode_nl (enc);
181		297
182	--enc->indent;	298	--enc->indent;
183	INDENT; encode_ch (enc, ']');	299	encode_indent (enc); encode_ch (enc, ']');
184	}	300	}
185		301
186	static void	302	static void
187	encode_he (enc_t enc, HE he)	303	encode_he (enc_t enc, HE he)
188	{	304	{
…		…
190		306
191	if (HeKLEN (he) == HEf_SVKEY)	307	if (HeKLEN (he) == HEf_SVKEY)
192	{	308	{
193	SV *sv = HeSVKEY (he);	309	SV *sv = HeSVKEY (he);
194	STRLEN len;	310	STRLEN len;
		311	char *str;
		312
		313	SvGETMAGIC (sv);
195	char *str = SvPV (sv, len);	314	str = SvPV (sv, len);
196		315
197	encode_str (enc, str, len, SvUTF8 (sv));	316	encode_str (enc, str, len, SvUTF8 (sv));
198	}	317	}
199	else	318	else
200	encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he));	319	encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he));
201		320
202	encode_ch (enc, '"');	321	encode_ch (enc, '"');
203		322
204	if (enc->flags & F_SPACE_BEFORE) SPACE;	323	if (enc->flags & F_SPACE_BEFORE) encode_space (enc);
205	encode_ch (enc, ':');	324	encode_ch (enc, ':');
206	if (enc->flags & F_SPACE_AFTER ) SPACE;	325	if (enc->flags & F_SPACE_AFTER ) encode_space (enc);
207	encode_sv (enc, HeVAL (he));	326	encode_sv (enc, HeVAL (he));
208	}	327	}
209		328
210	// compare hash entries, used when all keys are bytestrings	329	// compare hash entries, used when all keys are bytestrings
211	static int	330	static int
…		…
217	HE b = (HE **)b_;	336	HE b = (HE **)b_;
218		337
219	STRLEN la = HeKLEN (a);	338	STRLEN la = HeKLEN (a);
220	STRLEN lb = HeKLEN (b);	339	STRLEN lb = HeKLEN (b);
221		340
222	if (!(cmp == memcmp (HeKEY (a), HeKEY (b), la < lb ? la : lb)))	341	if (!(cmp = memcmp (HeKEY (a), HeKEY (b), la < lb ? la : lb)))
223	cmp = la < lb ? -1 : la == lb ? 0 : 1;	342	cmp = la - lb;
224		343
225	return cmp;	344	return cmp;
226	}	345	}
227		346
228	// compare hash entries, used when some keys are sv's or utf-x	347	// compare hash entries, used when some keys are sv's or utf-x
…		…
235	static void	354	static void
236	encode_hv (enc_t enc, HV hv)	355	encode_hv (enc_t enc, HV hv)
237	{	356	{
238	int count, i;	357	int count, i;
239		358
		359	if (enc->indent >= enc->maxdepth)
		360	croak ("data structure too deep (hit recursion limit)");
		361
240	encode_ch (enc, '{'); NL; ++enc->indent;	362	encode_ch (enc, '{'); encode_nl (enc); ++enc->indent;
241		363
242	if ((count = hv_iterinit (hv)))	364	if ((count = hv_iterinit (hv)))
243	{	365	{
244	// for canonical output we have to sort by keys first	366	// for canonical output we have to sort by keys first
245	// actually, this is mostly due to the stupid so-called	367	// actually, this is mostly due to the stupid so-called
246	// security workaround added somewhere in 5.8.x.	368	// security workaround added somewhere in 5.8.x.
247	// that randomises hash orderings	369	// that randomises hash orderings
248	if (enc->flags & F_CANONICAL)	370	if (enc->flags & F_CANONICAL)
249	{	371	{
250	HE he, hes [count];	372	HE he, hes [count]; // if your compiler dies here, you need to enable C99 mode
251	int fast = 1;	373	int fast = 1;
252		374
253	i = 0;	375	i = 0;
254	while ((he = hv_iternext (hv)))	376	while ((he = hv_iternext (hv)))
255	{	377	{
…		…
262		384
263	if (fast)	385	if (fast)
264	qsort (hes, count, sizeof (HE *), he_cmp_fast);	386	qsort (hes, count, sizeof (HE *), he_cmp_fast);
265	else	387	else
266	{	388	{
267	// hack to disable "use bytes"	389	// hack to forcefully disable "use bytes"
268	COP *oldcop = PL_curcop, cop;	390	COP cop = *PL_curcop;
269	cop.op_private = 0;	391	cop.op_private = 0;
		392
		393	ENTER;
		394	SAVETMPS;
		395
		396	SAVEVPTR (PL_curcop);
270	PL_curcop = &cop;	397	PL_curcop = &cop;
271		398
272	SAVETMPS;
273	qsort (hes, count, sizeof (HE *), he_cmp_slow);	399	qsort (hes, count, sizeof (HE *), he_cmp_slow);
		400
274	FREETMPS;	401	FREETMPS;
275		402	LEAVE;
276	PL_curcop = oldcop;
277	}	403	}
278		404
279	for (i = 0; i < count; ++i)	405	for (i = 0; i < count; ++i)
280	{	406	{
281	INDENT;	407	encode_indent (enc);
282	encode_he (enc, hes [i]);	408	encode_he (enc, hes [i]);
283		409
284	if (i < count - 1)	410	if (i < count - 1)
285	COMMA;	411	encode_comma (enc);
286	}	412	}
287		413
288	NL;	414	encode_nl (enc);
289	}	415	}
290	else	416	else
291	{	417	{
292	SV *sv;
293	HE *he = hv_iternext (hv);	418	HE *he = hv_iternext (hv);
294		419
295	for (;;)	420	for (;;)
296	{	421	{
297	INDENT;	422	encode_indent (enc);
298	encode_he (enc, he);	423	encode_he (enc, he);
299		424
300	if (!(he = hv_iternext (hv)))	425	if (!(he = hv_iternext (hv)))
301	break;	426	break;
302		427
303	COMMA;	428	encode_comma (enc);
304	}	429	}
305		430
306	NL;	431	encode_nl (enc);
307	}	432	}
308	}	433	}
309		434
310	--enc->indent; INDENT; encode_ch (enc, '}');	435	--enc->indent; encode_indent (enc); encode_ch (enc, '}');
		436	}
		437
		438	// encode objects, arrays and special \0=false and \1=true values.
		439	static void
		440	encode_rv (enc_t enc, SV sv)
		441	{
		442	svtype svt;
		443
		444	SvGETMAGIC (sv);
		445	svt = SvTYPE (sv);
		446
		447	if (svt == SVt_PVHV)
		448	encode_hv (enc, (HV *)sv);
		449	else if (svt == SVt_PVAV)
		450	encode_av (enc, (AV *)sv);
		451	else if (svt < SVt_PVAV)
		452	{
		453	if (SvNIOK (sv) && SvIV (sv) == 0)
		454	encode_str (enc, "false", 5, 0);
		455	else if (SvNIOK (sv) && SvIV (sv) == 1)
		456	encode_str (enc, "true", 4, 0);
		457	else
		458	croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",
		459	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
		460	}
		461	else
		462	croak ("encountered %s, but JSON can only represent references to arrays or hashes",
		463	SvPV_nolen (sv_2mortal (newRV_inc (sv))));
311	}	464	}
312		465
313	static void	466	static void
314	encode_sv (enc_t enc, SV sv)	467	encode_sv (enc_t enc, SV sv)
315	{	468	{
		469	SvGETMAGIC (sv);
		470
316	if (SvPOKp (sv))	471	if (SvPOKp (sv))
317	{	472	{
318	STRLEN len;	473	STRLEN len;
319	char *str = SvPV (sv, len);	474	char *str = SvPV (sv, len);
320	encode_ch (enc, '"');	475	encode_ch (enc, '"');
…		…
334	SvIsUV(sv)	489	SvIsUV(sv)
335	? snprintf (enc->cur, 64, "%"UVuf, (UV)SvUVX (sv))	490	? snprintf (enc->cur, 64, "%"UVuf, (UV)SvUVX (sv))
336	: snprintf (enc->cur, 64, "%"IVdf, (IV)SvIVX (sv));	491	: snprintf (enc->cur, 64, "%"IVdf, (IV)SvIVX (sv));
337	}	492	}
338	else if (SvROK (sv))	493	else if (SvROK (sv))
339	{	494	encode_rv (enc, SvRV (sv));
340	if (!--enc->max_recurse)
341	croak ("data structure too deep (hit recursion limit)");
342
343	sv = SvRV (sv);
344
345	switch (SvTYPE (sv))
346	{
347	case SVt_PVAV: encode_av (enc, (AV *)sv); break;
348	case SVt_PVHV: encode_hv (enc, (HV *)sv); break;
349
350	default:
351	croak ("JSON can only represent references to arrays or hashes");
352	}
353	}
354	else if (!SvOK (sv))	495	else if (!SvOK (sv))
355	encode_str (enc, "null", 4, 0);	496	encode_str (enc, "null", 4, 0);
356	else	497	else
357	croak ("encountered perl type that JSON cannot handle");	498	croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",
		499	SvPV_nolen (sv), SvFLAGS (sv));
358	}	500	}
359		501
360	static SV *	502	static SV *
361	encode_json (SV *scalar, UV flags)	503	encode_json (SV *scalar, U32 flags)
362	{	504	{
363	enc_t enc;	505	enc_t enc;
		506
		507	if (!(flags & F_ALLOW_NONREF) && !SvROK (scalar))
		508	croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");
		509
364	enc.flags = flags;	510	enc.flags = flags;
365	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));	511	enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
366	enc.cur = SvPVX (enc.sv);	512	enc.cur = SvPVX (enc.sv);
367	enc.end = SvEND (enc.sv);	513	enc.end = SvEND (enc.sv);
368	enc.max_recurse = 0;
369	enc.indent = 0;	514	enc.indent = 0;
		515	enc.maxdepth = DEC_DEPTH (flags);
370		516
371	SvPOK_only (enc.sv);	517	SvPOK_only (enc.sv);
372	encode_sv (&enc, scalar);	518	encode_sv (&enc, scalar);
373		519
374	if (!(flags & (F_ASCII \| F_UTF8)))	520	if (!(flags & (F_ASCII \| F_UTF8)))
375	SvUTF8_on (enc.sv);	521	SvUTF8_on (enc.sv);
376		522
377	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));	523	SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));
		524	*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings
		525
		526	if (enc.flags & F_SHRINK)
		527	shrink (enc.sv);
		528
378	return enc.sv;	529	return enc.sv;
379	}	530	}
380		531
381	/////////////////////////////////////////////////////////////////////////////	532	/////////////////////////////////////////////////////////////////////////////
		533	// decoder
382		534
383	#define WS \	535	// structure used for decoding JSON
		536	typedef struct
		537	{
		538	char *cur; // current parser pointer
		539	char *end; // end of input string
		540	const char *err; // parse error, if != 0
		541	U32 flags; // F_*
		542	U32 depth; // recursion depth
		543	U32 maxdepth; // recursion depth limit
		544	} dec_t;
		545
		546	static void
		547	decode_ws (dec_t *dec)
		548	{
384	for (;;) \	549	for (;;)
385	{ \	550	{
386	char ch = *dec->cur; \	551	char ch = *dec->cur;
		552
387	if (ch > 0x20 \	553	if (ch > 0x20
388	\|\| (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09)) \	554	\|\| (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09))
389	break; \	555	break;
		556
390	++dec->cur; \	557	++dec->cur;
391	}	558	}
		559	}
392		560
393	#define ERR(reason) SB dec->err = reason; goto fail; SE	561	#define ERR(reason) SB dec->err = reason; goto fail; SE
		562
394	#define EXPECT_CH(ch) SB \	563	#define EXPECT_CH(ch) SB \
395	if (*dec->cur != ch) \	564	if (*dec->cur != ch) \
396	ERR (# ch " expected"); \	565	ERR (# ch " expected"); \
397	++dec->cur; \	566	++dec->cur; \
398	SE	567	SE
399		568
		569	#define DEC_INC_DEPTH if (++dec->depth > dec->maxdepth) ERR ("json datastructure exceeds maximum nesting level (set a higher max_depth)")
		570	#define DEC_DEC_DEPTH --dec->depth
		571
400	static SV decode_sv (dec_t dec);	572	static SV decode_sv (dec_t dec);
401
402	#define APPEND_CH(ch) SB \
403	SvGROW (sv, cur + 1 + 1); \
404	SvPVX (sv)[cur++] = (ch); \
405	SE
406		573
407	static signed char decode_hexdigit[256];	574	static signed char decode_hexdigit[256];
408		575
409	static UV	576	static UV
410	decode_4hex (dec_t *dec)	577	decode_4hex (dec_t *dec)
411	{	578	{
412	signed char d1, d2, d3, d4;	579	signed char d1, d2, d3, d4;
		580	unsigned char cur = (unsigned char )dec->cur;
413		581
414	d1 = decode_hexdigit [((unsigned char *)dec->cur) [0]];
415	if (d1 < 0) ERR ("four hexadecimal digits expected");	582	d1 = decode_hexdigit [cur [0]]; if (d1 < 0) ERR ("four hexadecimal digits expected");
416	d2 = decode_hexdigit [((unsigned char *)dec->cur) [1]];
417	if (d2 < 0) ERR ("four hexadecimal digits expected");	583	d2 = decode_hexdigit [cur [1]]; if (d2 < 0) ERR ("four hexadecimal digits expected");
418	d3 = decode_hexdigit [((unsigned char *)dec->cur) [2]];
419	if (d3 < 0) ERR ("four hexadecimal digits expected");	584	d3 = decode_hexdigit [cur [2]]; if (d3 < 0) ERR ("four hexadecimal digits expected");
420	d4 = decode_hexdigit [((unsigned char *)dec->cur) [3]];
421	if (d4 < 0) ERR ("four hexadecimal digits expected");	585	d4 = decode_hexdigit [cur [3]]; if (d4 < 0) ERR ("four hexadecimal digits expected");
422		586
423	dec->cur += 4;	587	dec->cur += 4;
424		588
425	return ((UV)d1) << 12	589	return ((UV)d1) << 12
426	\| ((UV)d2) << 8	590	\| ((UV)d2) << 8
…		…
432	}	596	}
433		597
434	static SV *	598	static SV *
435	decode_str (dec_t *dec)	599	decode_str (dec_t *dec)
436	{	600	{
437	SV *sv = NEWSV (0,2);	601	SV *sv = 0;
438	STRLEN cur = 0;
439	int utf8 = 0;	602	int utf8 = 0;
440		603
441	for (;;)	604	do
442	{	605	{
443	unsigned char ch = (unsigned char )dec->cur;	606	char buf [SHORT_STRING_LEN + UTF8_MAX_LEN];
		607	char *cur = buf;
444		608
445	if (ch == '"')	609	do
446	break;
447	else if (ch == '\\')
448	{	610	{
449	switch (*++dec->cur)	611	unsigned char ch = (unsigned char )dec->cur++;
		612
		613	if (ch == '"')
450	{	614	{
451	case '\\':	615	--dec->cur;
452	case '/':	616	break;
453	case '"': APPEND_CH (*dec->cur++); break;	617	}
454		618	else if (ch == '\\')
455	case 'b': APPEND_CH ('\010'); ++dec->cur; break;	619	{
456	case 't': APPEND_CH ('\011'); ++dec->cur; break;	620	switch (*dec->cur)
457	case 'n': APPEND_CH ('\012'); ++dec->cur; break;
458	case 'f': APPEND_CH ('\014'); ++dec->cur; break;
459	case 'r': APPEND_CH ('\015'); ++dec->cur; break;
460
461	case 'u':
462	{	621	{
463	UV lo, hi;	622	case '\\':
464	++dec->cur;	623	case '/':
		624	case '"': cur++ = dec->cur++; break;
465		625
466	hi = decode_4hex (dec);	626	case 'b': ++dec->cur; *cur++ = '\010'; break;
467	if (hi == (UV)-1)	627	case 't': ++dec->cur; *cur++ = '\011'; break;
468	goto fail;	628	case 'n': ++dec->cur; *cur++ = '\012'; break;
		629	case 'f': ++dec->cur; *cur++ = '\014'; break;
		630	case 'r': ++dec->cur; *cur++ = '\015'; break;
469		631
470	// possibly a surrogate pair	632	case 'u':
471	if (hi >= 0xd800 && hi < 0xdc00)
472	{	633	{
473	if (dec->cur [0] != '\\' \|\| dec->cur [1] != 'u')	634	UV lo, hi;
474	ERR ("illegal surrogate character");
475
476	dec->cur += 2;	635	++dec->cur;
477		636
478	lo = decode_4hex (dec);	637	hi = decode_4hex (dec);
479	if (lo == (UV)-1)	638	if (hi == (UV)-1)
480	goto fail;	639	goto fail;
481		640
		641	// possibly a surrogate pair
		642	if (hi >= 0xd800)
		643	if (hi < 0xdc00)
		644	{
		645	if (dec->cur [0] != '\\' \|\| dec->cur [1] != 'u')
		646	ERR ("missing low surrogate character in surrogate pair");
		647
		648	dec->cur += 2;
		649
		650	lo = decode_4hex (dec);
		651	if (lo == (UV)-1)
		652	goto fail;
		653
482	if (lo < 0xdc00 \|\| lo >= 0xe000)	654	if (lo < 0xdc00 \|\| lo >= 0xe000)
483	ERR ("surrogate pair expected");	655	ERR ("surrogate pair expected");
484		656
485	hi = (hi - 0xD800) * 0x400 + (lo - 0xDC00) + 0x10000;	657	hi = (hi - 0xD800) * 0x400 + (lo - 0xDC00) + 0x10000;
		658	}
		659	else if (hi < 0xe000)
		660	ERR ("missing high surrogate character in surrogate pair");
		661
		662	if (hi >= 0x80)
		663	{
		664	utf8 = 1;
		665
		666	cur = (char *)uvuni_to_utf8_flags (cur, hi, 0);
		667	}
		668	else
		669	*cur++ = hi;
486	}	670	}
487	else if (lo >= 0xdc00 && lo < 0xe000)
488	ERR ("illegal surrogate character");
489
490	if (hi >= 0x80)
491	{	671	break;
492	utf8 = 1;
493		672
494	SvGROW (sv, cur + 4 + 1); // at most 4 bytes for 21 bits
495	cur = (char *)uvuni_to_utf8_flags (SvPVX (sv) + cur, hi, 0) - SvPVX (sv);
496	}
497	else	673	default:
498	APPEND_CH (hi);	674	--dec->cur;
		675	ERR ("illegal backslash escape sequence in string");
499	}	676	}
		677	}
		678	else if (ch >= 0x20 && ch <= 0x7f)
		679	*cur++ = ch;
		680	else if (ch >= 0x80)
		681	{
		682	STRLEN clen;
		683	UV uch;
		684
		685	--dec->cur;
		686
		687	uch = decode_utf8 (dec->cur, dec->end - dec->cur, &clen);
		688	if (clen == (STRLEN)-1)
		689	ERR ("malformed UTF-8 character in JSON string");
		690
		691	do
		692	cur++ = dec->cur++;
		693	while (--clen);
		694
		695	utf8 = 1;
		696	}
		697	else
		698	{
		699	--dec->cur;
		700
		701	if (!ch)
		702	ERR ("unexpected end of string while parsing JSON string");
500	break;	703	else
		704	ERR ("invalid character encountered while parsing JSON string");
501	}	705	}
502	}	706	}
503	else if (ch >= 0x20 && ch <= 0x7f)	707	while (cur < buf + SHORT_STRING_LEN);
504	APPEND_CH (*dec->cur++);	708
505	else if (ch >= 0x80)	709	{
		710	STRLEN len = cur - buf;
		711
		712	if (sv)
506	{	713	{
507	STRLEN clen;	714	SvGROW (sv, SvCUR (sv) + len + 1);
508	UV uch = utf8n_to_uvuni (dec->cur, dec->end - dec->cur, &clen, UTF8_CHECK_ONLY);	715	memcpy (SvPVX (sv) + SvCUR (sv), buf, len);
509	if (clen < 0)	716	SvCUR_set (sv, SvCUR (sv) + len);
510	ERR ("malformed UTF-8 character in string, cannot convert to JSON");
511
512	SvGROW (sv, cur + clen + 1); // at most 4 bytes for 21 bits
513	memcpy (SvPVX (sv) + cur, dec->cur, clen);
514	dec->cur += clen;
515	}	717	}
516	else	718	else
517	ERR ("invalid character encountered");	719	sv = newSVpvn (buf, len);
518	}	720	}
		721	}
		722	while (*dec->cur != '"');
519		723
520	++dec->cur;	724	++dec->cur;
521		725
		726	if (sv)
		727	{
522	SvPOK_only (sv);	728	SvPOK_only (sv);
523
524	SvCUR_set (sv, cur);
525	*SvEND (sv) = 0;	729	*SvEND (sv) = 0;
526		730
527	if (utf8)	731	if (utf8)
528	SvUTF8_on (sv);	732	SvUTF8_on (sv);
		733	}
		734	else
		735	sv = newSVpvn ("", 0);
529		736
530	return sv;	737	return sv;
531		738
532	fail:	739	fail:
533	SvREFCNT_dec (sv);
534	return 0;	740	return 0;
535	}	741	}
536		742
537	static SV *	743	static SV *
538	decode_num (dec_t *dec)	744	decode_num (dec_t *dec)
…		…
548	{	754	{
549	++dec->cur;	755	++dec->cur;
550	if (dec->cur >= '0' && dec->cur <= '9')	756	if (dec->cur >= '0' && dec->cur <= '9')
551	ERR ("malformed number (leading zero must not be followed by another digit)");	757	ERR ("malformed number (leading zero must not be followed by another digit)");
552	}	758	}
553		759	else if (dec->cur < '0' \|\| dec->cur > '9')
554	// int	760	ERR ("malformed number (no digits after initial minus)");
		761	else
		762	do
		763	{
		764	++dec->cur;
		765	}
555	while (dec->cur >= '0' && dec->cur <= '9')	766	while (dec->cur >= '0' && dec->cur <= '9');
556	++dec->cur;
557		767
558	// [frac]	768	// [frac]
559	if (*dec->cur == '.')	769	if (*dec->cur == '.')
560	{	770	{
561	is_nv = 1;	771	++dec->cur;
		772
		773	if (dec->cur < '0' \|\| dec->cur > '9')
		774	ERR ("malformed number (no digits after decimal point)");
562		775
563	do	776	do
564	{	777	{
565	++dec->cur;	778	++dec->cur;
566	}	779	}
567	while (dec->cur >= '0' && dec->cur <= '9');	780	while (dec->cur >= '0' && dec->cur <= '9');
		781
		782	is_nv = 1;
568	}	783	}
569		784
570	// [exp]	785	// [exp]
571	if (dec->cur == 'e' \|\| dec->cur == 'E')	786	if (dec->cur == 'e' \|\| dec->cur == 'E')
572	{	787	{
573	is_nv = 1;
574
575	++dec->cur;	788	++dec->cur;
		789
576	if (dec->cur == '-' \|\| dec->cur == '+')	790	if (dec->cur == '-' \|\| dec->cur == '+')
577	++dec->cur;	791	++dec->cur;
578		792
		793	if (dec->cur < '0' \|\| dec->cur > '9')
		794	ERR ("malformed number (no digits after exp sign)");
		795
		796	do
		797	{
		798	++dec->cur;
		799	}
579	while (dec->cur >= '0' && dec->cur <= '9')	800	while (dec->cur >= '0' && dec->cur <= '9');
580	++dec->cur;	801
		802	is_nv = 1;
581	}	803	}
582		804
583	if (!is_nv)	805	if (!is_nv)
584	{	806	{
585	UV uv;	807	UV uv;
…		…
603	static SV *	825	static SV *
604	decode_av (dec_t *dec)	826	decode_av (dec_t *dec)
605	{	827	{
606	AV *av = newAV ();	828	AV *av = newAV ();
607		829
		830	DEC_INC_DEPTH;
		831	decode_ws (dec);
		832
		833	if (*dec->cur == ']')
		834	++dec->cur;
		835	else
608	for (;;)	836	for (;;)
609	{	837	{
610	SV *value;	838	SV *value;
611		839
612	value = decode_sv (dec);	840	value = decode_sv (dec);
613	if (!value)	841	if (!value)
614	goto fail;	842	goto fail;
615		843
616	av_push (av, value);	844	av_push (av, value);
617		845
618	WS;	846	decode_ws (dec);
619		847
620	if (*dec->cur == ']')	848	if (*dec->cur == ']')
621	{	849	{
622	++dec->cur;	850	++dec->cur;
623	break;	851	break;
		852	}
624	}	853
625
626	if (*dec->cur != ',')	854	if (*dec->cur != ',')
627	ERR (", or ] expected while parsing array");	855	ERR (", or ] expected while parsing array");
628		856
629	++dec->cur;	857	++dec->cur;
630	}	858	}
631		859
		860	DEC_DEC_DEPTH;
632	return newRV_noinc ((SV *)av);	861	return newRV_noinc ((SV *)av);
633		862
634	fail:	863	fail:
635	SvREFCNT_dec (av);	864	SvREFCNT_dec (av);
		865	DEC_DEC_DEPTH;
636	return 0;	866	return 0;
637	}	867	}
638		868
639	static SV *	869	static SV *
640	decode_hv (dec_t *dec)	870	decode_hv (dec_t *dec)
641	{	871	{
642	HV *hv = newHV ();	872	HV *hv = newHV ();
643		873
		874	DEC_INC_DEPTH;
		875	decode_ws (dec);
		876
		877	if (*dec->cur == '}')
		878	++dec->cur;
		879	else
644	for (;;)	880	for (;;)
645	{	881	{
646	SV key, value;	882	SV key, value;
647		883
648	WS; EXPECT_CH ('"');	884	decode_ws (dec); EXPECT_CH ('"');
649		885
650	key = decode_str (dec);	886	key = decode_str (dec);
651	if (!key)	887	if (!key)
652	goto fail;
653
654	WS; EXPECT_CH (':');
655
656	value = decode_sv (dec);
657	if (!value)
658	{
659	SvREFCNT_dec (key);
660	goto fail;	888	goto fail;
		889
		890	decode_ws (dec); EXPECT_CH (':');
		891
		892	value = decode_sv (dec);
		893	if (!value)
		894	{
		895	SvREFCNT_dec (key);
		896	goto fail;
661	}	897	}
662		898
663	//TODO: optimise
664	hv_store_ent (hv, key, value, 0);	899	hv_store_ent (hv, key, value, 0);
		900	SvREFCNT_dec (key);
665		901
666	WS;	902	decode_ws (dec);
667		903
668	if (*dec->cur == '}')	904	if (*dec->cur == '}')
669	{	905	{
670	++dec->cur;	906	++dec->cur;
671	break;	907	break;
672	}	908	}
673		909
674	if (*dec->cur != ',')	910	if (*dec->cur != ',')
675	ERR (", or } expected while parsing object/hash");	911	ERR (", or } expected while parsing object/hash");
676		912
677	++dec->cur;	913	++dec->cur;
678	}	914	}
679		915
		916	DEC_DEC_DEPTH;
680	return newRV_noinc ((SV *)hv);	917	return newRV_noinc ((SV *)hv);
681		918
682	fail:	919	fail:
683	SvREFCNT_dec (hv);	920	SvREFCNT_dec (hv);
		921	DEC_DEC_DEPTH;
684	return 0;	922	return 0;
685	}	923	}
686		924
687	static SV *	925	static SV *
688	decode_sv (dec_t *dec)	926	decode_sv (dec_t *dec)
689	{	927	{
690	WS;	928	decode_ws (dec);
691	switch (*dec->cur)	929	switch (*dec->cur)
692	{	930	{
693	case '"': ++dec->cur; return decode_str (dec);	931	case '"': ++dec->cur; return decode_str (dec);
694	case '[': ++dec->cur; return decode_av (dec);	932	case '[': ++dec->cur; return decode_av (dec);
695	case '{': ++dec->cur; return decode_hv (dec);	933	case '{': ++dec->cur; return decode_hv (dec);
…		…
723		961
724	case 'n':	962	case 'n':
725	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "null", 4))	963	if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "null", 4))
726	{	964	{
727	dec->cur += 4;	965	dec->cur += 4;
728	return newSViv (1);	966	return newSVsv (&PL_sv_undef);
729	}	967	}
730	else	968	else
731	ERR ("'null' expected");	969	ERR ("'null' expected");
732		970
733	break;	971	break;
734		972
735	default:	973	default:
736	ERR ("malformed json string");	974	ERR ("malformed JSON string, neither array, object, number, string or atom");
737	break;	975	break;
738	}	976	}
739		977
740	fail:	978	fail:
741	return 0;	979	return 0;
742	}	980	}
743		981
744	static SV *	982	static SV *
745	decode_json (SV *string, UV flags)	983	decode_json (SV *string, U32 flags)
746	{	984	{
		985	dec_t dec;
747	SV *sv;	986	SV *sv;
748		987
		988	SvUPGRADE (string, SVt_PV);
		989
749	if (!(flags & F_UTF8))	990	if (flags & F_UTF8)
		991	sv_utf8_downgrade (string, 0);
		992	else
750	sv_utf8_upgrade (string);	993	sv_utf8_upgrade (string);
751		994
752	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP	995	SvGROW (string, SvCUR (string) + 1); // should basically be a NOP
753		996
754	dec_t dec;
755	dec.flags = flags;	997	dec.flags = flags;
756	dec.cur = SvPVX (string);	998	dec.cur = SvPVX (string);
757	dec.end = SvEND (string);	999	dec.end = SvEND (string);
758	dec.err = 0;	1000	dec.err = 0;
		1001	dec.depth = 0;
		1002	dec.maxdepth = DEC_DEPTH (dec.flags);
759		1003
760	*dec.end = 1; // invalid anywhere	1004	*dec.end = 0; // this should basically be a nop, too, but make sure its there
761	sv = decode_sv (&dec);	1005	sv = decode_sv (&dec);
762	*dec.end = 0;
763		1006
764	if (!sv)	1007	if (!sv)
765	{	1008	{
		1009	IV offset = dec.flags & F_UTF8
		1010	? dec.cur - SvPVX (string)
766	IV offset = utf8_distance (dec.cur, SvPVX (string));	1011	: utf8_distance (dec.cur, SvPVX (string));
767	SV *uni = sv_newmortal ();	1012	SV *uni = sv_newmortal ();
768		1013
		1014	// horrible hack to silence warning inside pv_uni_display
		1015	COP cop = *PL_curcop;
		1016	cop.cop_warnings = pWARN_NONE;
		1017	ENTER;
		1018	SAVEVPTR (PL_curcop);
		1019	PL_curcop = &cop;
769	pv_uni_display (uni, dec.cur, dec.end - dec.cur, 20, UNI_DISPLAY_QQ);	1020	pv_uni_display (uni, dec.cur, dec.end - dec.cur, 20, UNI_DISPLAY_QQ);
		1021	LEAVE;
		1022
770	croak ("%s, at character %d (%s)",	1023	croak ("%s, at character offset %d [\"%s\"]",
771	dec.err,	1024	dec.err,
772	(int)offset,	1025	(int)offset,
773	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");	1026	dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");
774	}	1027	}
775		1028
776	sv_dump (sv);//D
777	return sv_2mortal (sv);	1029	sv = sv_2mortal (sv);
		1030
		1031	if (!(dec.flags & F_ALLOW_NONREF) && !SvROK (sv))
		1032	croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");
		1033
		1034	return sv;
778	}	1035	}
		1036
		1037	/////////////////////////////////////////////////////////////////////////////
		1038	// XS interface functions
779		1039
780	MODULE = JSON::XS PACKAGE = JSON::XS	1040	MODULE = JSON::XS PACKAGE = JSON::XS
781		1041
782	BOOT:	1042	BOOT:
783	{	1043	{
784	int i;	1044	int i;
785		1045
786	memset (decode_hexdigit, 0xff, 256);	1046	memset (decode_hexdigit, 0xff, 256);
		1047
787	for (i = 10; i--; )	1048	for (i = 0; i < 256; ++i)
788	decode_hexdigit ['0' + i] = i;	1049	decode_hexdigit [i] =
789		1050	i >= '0' && i <= '9' ? i - '0'
790	for (i = 6; --i; )	1051	: i >= 'a' && i <= 'f' ? i - 'a' + 10
791	{	1052	: i >= 'A' && i <= 'F' ? i - 'A' + 10
792	decode_hexdigit ['a' + i] = 10 + i;	1053	: -1;
793	decode_hexdigit ['A' + i] = 10 + i;
794	}
795		1054
796	json_stash = gv_stashpv ("JSON::XS", 1);	1055	json_stash = gv_stashpv ("JSON::XS", 1);
797	}	1056	}
		1057
		1058	PROTOTYPES: DISABLE
798		1059
799	SV new (char dummy)	1060	SV new (char dummy)
800	CODE:	1061	CODE:
801	RETVAL = sv_bless (newRV_noinc (newSVuv (F_DEFAULT)), json_stash);	1062	RETVAL = sv_bless (newRV_noinc (newSVuv (F_DEFAULT)), json_stash);
802	OUTPUT:	1063	OUTPUT:
803	RETVAL	1064	RETVAL
804		1065
805	SV ascii (SV self, int enable)	1066	SV ascii (SV self, int enable = 1)
806	ALIAS:	1067	ALIAS:
807	ascii = F_ASCII	1068	ascii = F_ASCII
808	utf8 = F_UTF8	1069	utf8 = F_UTF8
809	indent = F_INDENT	1070	indent = F_INDENT
810	canonical = F_CANONICAL	1071	canonical = F_CANONICAL
811	space_before = F_SPACE_BEFORE	1072	space_before = F_SPACE_BEFORE
812	space_after = F_SPACE_AFTER	1073	space_after = F_SPACE_AFTER
813	json_rpc = F_JSON_RPC	1074	pretty = F_PRETTY
		1075	allow_nonref = F_ALLOW_NONREF
		1076	shrink = F_SHRINK
814	CODE:	1077	CODE:
815	{	1078	{
816	UV *uv = SvJSON (self);	1079	UV *uv = SvJSON (self);
817	if (enable)	1080	if (enable)
818	*uv \|= ix;	1081	*uv \|= ix;
…		…
822	RETVAL = newSVsv (self);	1085	RETVAL = newSVsv (self);
823	}	1086	}
824	OUTPUT:	1087	OUTPUT:
825	RETVAL	1088	RETVAL
826		1089
		1090	SV max_depth (SV self, UV max_depth = 0x80000000UL)
		1091	CODE:
		1092	{
		1093	UV *uv = SvJSON (self);
		1094	UV log2 = 0;
		1095
		1096	if (max_depth > 0x80000000UL) max_depth = 0x80000000UL;
		1097
		1098	while ((1UL << log2) < max_depth)
		1099	++log2;
		1100
		1101	uv = uv & ~F_MAXDEPTH \| (log2 << S_MAXDEPTH);
		1102
		1103	RETVAL = newSVsv (self);
		1104	}
		1105	OUTPUT:
		1106	RETVAL
		1107
827	void encode (SV self, SV scalar)	1108	void encode (SV self, SV scalar)
828	PPCODE:	1109	PPCODE:
829	XPUSHs (encode_json (scalar, *SvJSON (self)));	1110	XPUSHs (encode_json (scalar, *SvJSON (self)));
830		1111
831	void decode (SV self, SV jsondata)	1112	void decode (SV self, SV jsonstr)
832	PPCODE:	1113	PPCODE:
833	XPUSHs (decode_json (jsondata, *SvJSON (self)));	1114	XPUSHs (decode_json (jsonstr, *SvJSON (self)));
834		1115
		1116	PROTOTYPES: ENABLE
		1117
		1118	void to_json (SV *scalar)
		1119	ALIAS:
		1120	objToJson = 0
		1121	PPCODE:
		1122	XPUSHs (encode_json (scalar, F_DEFAULT \| F_UTF8));
		1123
		1124	void from_json (SV *jsonstr)
		1125	ALIAS:
		1126	jsonToObj = 0
		1127	PPCODE:
		1128	XPUSHs (decode_json (jsonstr, F_DEFAULT \| F_UTF8));
		1129

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Comparing JSON-XS/XS.xs (file contents): Revision 1.1 by root, Thu Mar 22 16:40:16 2007 UTC vs. Revision 1.27 by root, Mon Apr 9 05:09:57 2007 UTC

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Comparing JSON-XS/XS.xs (file contents):
Revision 1.1 by root, Thu Mar 22 16:40:16 2007 UTC vs.
Revision 1.27 by root, Mon Apr 9 05:09:57 2007 UTC