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Comparing JSON-XS/XS.xs (file contents):
Revision 1.3 by root, Thu Mar 22 18:10:29 2007 UTC vs.
Revision 1.21 by root, Thu Mar 29 02:45:49 2007 UTC

… …
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 8
9#define F_ASCII 0x00000001 9#define F_ASCII 0x00000001UL
10#define F_UTF8 0x00000002 10#define F_UTF8 0x00000002UL
11#define F_INDENT 0x00000004 11#define F_INDENT 0x00000004UL
12#define F_CANONICAL 0x00000008 12#define F_CANONICAL 0x00000008UL
13#define F_SPACE_BEFORE 0x00000010 13#define F_SPACE_BEFORE 0x00000010UL
14#define F_SPACE_AFTER 0x00000020 14#define F_SPACE_AFTER 0x00000020UL
15#define F_JSON_RPC 0x00000040
16#define F_ALLOW_NONREF 0x00000080 15#define F_ALLOW_NONREF 0x00000080UL
16#define F_SHRINK 0x00000100UL
17#define F_MAXDEPTH 0xf8000000UL
18#define S_MAXDEPTH 27
19
20#define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH))
21
22// F_SELFCONVERT? <=> to_json/toJson
23// F_BLESSED? <=> { $__class__$ => }
17 24
18#define F_PRETTY F_INDENT | F_SPACE_BEFORE | F_SPACE_AFTER 25#define F_PRETTY F_INDENT | F_SPACE_BEFORE | F_SPACE_AFTER
19#define F_DEFAULT 0 26#define F_DEFAULT (12UL << S_MAXDEPTH)
20 27
21#define INIT_SIZE 32 // initial scalar size to be allocated 28#define INIT_SIZE 32 // initial scalar size to be allocated
29#define INDENT_STEP 3 // spaces per indentation level
30
31#define UTF8_MAX_LEN 11 // for perls UTF-X: max. number of octets per character
32#define SHORT_STRING_LEN 512 // special-case strings of up to this size
22 33
23#define SB do { 34#define SB do {
24#define SE } while (0) 35#define SE } while (0)
25 36
26static HV *json_stash; 37static HV *json_stash; // JSON::XS::
38
39/////////////////////////////////////////////////////////////////////////////
40// utility functions
41
42static UV *
43SvJSON (SV *sv)
44{
45 if (!(SvROK (sv) && SvOBJECT (SvRV (sv)) && SvSTASH (SvRV (sv)) == json_stash))
46 croak ("object is not of type JSON::XS");
47
48 return &SvUVX (SvRV (sv));
49}
50
51static void
52shrink (SV *sv)
53{
54 sv_utf8_downgrade (sv, 1);
55 if (SvLEN (sv) > SvCUR (sv) + 1)
56 {
57#ifdef SvPV_shrink_to_cur
58 SvPV_shrink_to_cur (sv);
59#elif defined (SvPV_renew)
60 SvPV_renew (sv, SvCUR (sv) + 1);
61#endif
62 }
63}
64
65// decode an utf-8 character and return it, or (UV)-1 in
66// case of an error.
67// we special-case "safe" characters from U+80 .. U+7FF,
68// but use the very good perl function to parse anything else.
69// note that we never call this function for a ascii codepoints
70static UV
71decode_utf8 (unsigned char *s, STRLEN len, STRLEN *clen)
72{
73 if (s[0] > 0xdf || s[0] < 0xc2)
74 return utf8n_to_uvuni (s, len, clen, UTF8_CHECK_ONLY);
75 else if (len > 1 && s[1] >= 0x80 && s[1] <= 0xbf)
76 {
77 *clen = 2;
78 return ((s[0] & 0x1f) << 6) | (s[1] & 0x3f);
79 }
80 else
81 return (UV)-1;
82}
83
84/////////////////////////////////////////////////////////////////////////////
85// encoder
27 86
28// structure used for encoding JSON 87// structure used for encoding JSON
29typedef struct 88typedef struct
30{ 89{
31 char *cur; 90 char *cur; // SvPVX (sv) + current output position
32 STRLEN len; // SvLEN (sv)
33 char *end; // SvEND (sv) 91 char *end; // SvEND (sv)
34 SV *sv; 92 SV *sv; // result scalar
35 UV flags; 93 U32 flags; // F_*
36 int max_recurse; 94 U32 indent; // indentation level
37 int indent; 95 U32 maxdepth; // max. indentation/recursion level
38} enc_t; 96} enc_t;
39
40// structure used for decoding JSON
41typedef struct
42{
43 char *cur;
44 char *end;
45 char *err;
46 UV flags;
47} dec_t;
48
49static UV *
50SvJSON (SV *sv)
51{
52 if (!(SvROK (sv) && SvOBJECT (SvRV (sv)) && SvSTASH (SvRV (sv)) == json_stash))
53 croak ("object is not of type JSON::XS");
54
55 return &SvUVX (SvRV (sv));
56}
57
58/////////////////////////////////////////////////////////////////////////////
59 97
60static void 98static void
61need (enc_t *enc, STRLEN len) 99need (enc_t *enc, STRLEN len)
62{ 100{
63 if (enc->cur + len >= enc->end) 101 if (enc->cur + len >= enc->end)
64 { 102 {
65 STRLEN cur = enc->cur - SvPVX (enc->sv); 103 STRLEN cur = enc->cur - SvPVX (enc->sv);
66 SvGROW (enc->sv, cur + len + 1); 104 SvGROW (enc->sv, cur + len + 1);
67 enc->cur = SvPVX (enc->sv) + cur; 105 enc->cur = SvPVX (enc->sv) + cur;
68 enc->end = SvEND (enc->sv); 106 enc->end = SvPVX (enc->sv) + SvLEN (enc->sv);
69 } 107 }
70} 108}
71 109
72static void 110static void
73encode_ch (enc_t *enc, char ch) 111encode_ch (enc_t *enc, char ch)
… …
79static void 117static void
80encode_str (enc_t *enc, char *str, STRLEN len, int is_utf8) 118encode_str (enc_t *enc, char *str, STRLEN len, int is_utf8)
81{ 119{
82 char *end = str + len; 120 char *end = str + len;
83 121
122 need (enc, len);
123
84 while (str < end) 124 while (str < end)
85 { 125 {
86 unsigned char ch = *(unsigned char *)str; 126 unsigned char ch = *(unsigned char *)str;
127
87 if (ch >= 0x20 && ch < 0x80) // most common case 128 if (ch >= 0x20 && ch < 0x80) // most common case
88 { 129 {
130 if (ch == '"') // but with slow exceptions
131 {
132 need (enc, len += 1);
133 *enc->cur++ = '\\';
134 *enc->cur++ = '"';
135 }
136 else if (ch == '\\')
137 {
138 need (enc, len += 1);
139 *enc->cur++ = '\\';
140 *enc->cur++ = '\\';
141 }
142 else
89 *enc->cur++ = ch; 143 *enc->cur++ = ch;
144
90 str++; 145 ++str;
91 } 146 }
92 else 147 else
93 { 148 {
94 STRLEN clen; 149 switch (ch)
95 UV uch;
96
97 if (is_utf8)
98 { 150 {
99 uch = utf8n_to_uvuni (str, end - str, &clen, UTF8_CHECK_ONLY); 151 case '\010': need (enc, len += 1); *enc->cur++ = '\\'; *enc->cur++ = 'b'; ++str; break;
100 if (clen < 0) 152 case '\011': need (enc, len += 1); *enc->cur++ = '\\'; *enc->cur++ = 't'; ++str; break;
101 croak ("malformed UTF-8 character in string, cannot convert to JSON"); 153 case '\012': need (enc, len += 1); *enc->cur++ = '\\'; *enc->cur++ = 'n'; ++str; break;
102 } 154 case '\014': need (enc, len += 1); *enc->cur++ = '\\'; *enc->cur++ = 'f'; ++str; break;
103 else 155 case '\015': need (enc, len += 1); *enc->cur++ = '\\'; *enc->cur++ = 'r'; ++str; break;
104 {
105 uch = ch;
106 clen = 1;
107 }
108 156
109 need (enc, len += 6); 157 default:
110
111 if (uch < 0xa0 || enc->flags & F_ASCII)
112 {
113 if (uch > 0xFFFFUL)
114 { 158 {
159 STRLEN clen;
160 UV uch;
161
162 if (is_utf8)
163 {
164 //uch = utf8n_to_uvuni (str, end - str, &clen, UTF8_CHECK_ONLY);
165 uch = decode_utf8 (str, end - str, &clen);
166 if (clen == (STRLEN)-1)
167 croak ("malformed or illegal unicode character in string [%.11s], cannot convert to JSON", str);
168 }
169 else
170 {
171 uch = ch;
115 len += 6; 172 clen = 1;
173 }
174
175 if (uch > 0x10FFFFUL)
176 croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch);
177
178 if (uch < 0x80 || enc->flags & F_ASCII)
179 {
180 if (uch > 0xFFFFUL)
181 {
116 need (enc, len += 6); 182 need (enc, len += 11);
117 sprintf (enc->cur, "\\u%04x\\u%04x", 183 sprintf (enc->cur, "\\u%04x\\u%04x",
118 (uch - 0x10000) / 0x400 + 0xD800, 184 (int)((uch - 0x10000) / 0x400 + 0xD800),
119 (uch - 0x10000) % 0x400 + 0xDC00); 185 (int)((uch - 0x10000) % 0x400 + 0xDC00));
120 enc->cur += 12; 186 enc->cur += 12;
187 }
188 else
189 {
190 static char hexdigit [16] = "0123456789abcdef";
191 need (enc, len += 5);
192 *enc->cur++ = '\\';
193 *enc->cur++ = 'u';
194 *enc->cur++ = hexdigit [ uch >> 12 ];
195 *enc->cur++ = hexdigit [(uch >> 8) & 15];
196 *enc->cur++ = hexdigit [(uch >> 4) & 15];
197 *enc->cur++ = hexdigit [(uch >> 0) & 15];
198 }
199
200 str += clen;
121 } 201 }
202 else if (is_utf8)
203 {
204 need (enc, len += clen);
205 do
206 {
207 *enc->cur++ = *str++;
208 }
209 while (--clen);
210 }
122 else 211 else
123 { 212 {
124 sprintf (enc->cur, "\\u%04x", uch); 213 need (enc, len += UTF8_MAX_LEN - 1); // never more than 11 bytes needed
125 enc->cur += 6; 214 enc->cur = uvuni_to_utf8_flags (enc->cur, uch, 0);
215 ++str;
216 }
126 } 217 }
127 } 218 }
128 else if (is_utf8)
129 {
130 memcpy (enc->cur, str, clen);
131 enc->cur += clen;
132 }
133 else
134 enc->cur = uvuni_to_utf8_flags (enc->cur, uch, 0);
135
136 str += clen;
137 } 219 }
138 220
139 --len; 221 --len;
140 } 222 }
141} 223}
142 224
143#define INDENT SB \ 225static void
226encode_indent (enc_t *enc)
227{
144 if (enc->flags & F_INDENT) \ 228 if (enc->flags & F_INDENT)
145 { \ 229 {
146 int i_; \ 230 int spaces = enc->indent * INDENT_STEP;
147 need (enc, enc->indent); \
148 for (i_ = enc->indent * 3; i_--; )\
149 encode_ch (enc, ' '); \
150 } \
151 SE
152 231
153#define SPACE SB need (enc, 1); encode_ch (enc, ' '); SE 232 need (enc, spaces);
154#define NL SB if (enc->flags & F_INDENT) { need (enc, 1); encode_ch (enc, '\n'); } SE 233 memset (enc->cur, ' ', spaces);
155#define COMMA SB \ 234 enc->cur += spaces;
235 }
236}
237
238static void
239encode_space (enc_t *enc)
240{
241 need (enc, 1);
156 encode_ch (enc, ','); \ 242 encode_ch (enc, ' ');
243}
244
245static void
246encode_nl (enc_t *enc)
247{
157 if (enc->flags & F_INDENT) \ 248 if (enc->flags & F_INDENT)
158 NL; \ 249 {
250 need (enc, 1);
251 encode_ch (enc, '\n');
252 }
253}
254
255static void
256encode_comma (enc_t *enc)
257{
258 encode_ch (enc, ',');
259
260 if (enc->flags & F_INDENT)
261 encode_nl (enc);
159 else if (enc->flags & F_SPACE_AFTER) \ 262 else if (enc->flags & F_SPACE_AFTER)
160 SPACE; \ 263 encode_space (enc);
161 SE 264}
162 265
163static void encode_sv (enc_t *enc, SV *sv); 266static void encode_sv (enc_t *enc, SV *sv);
164 267
165static void 268static void
166encode_av (enc_t *enc, AV *av) 269encode_av (enc_t *enc, AV *av)
167{ 270{
168 int i, len = av_len (av); 271 int i, len = av_len (av);
169 272
170 encode_ch (enc, '['); NL; 273 if (enc->indent >= enc->maxdepth)
274 croak ("data structure too deep (hit recursion limit)");
275
276 encode_ch (enc, '['); encode_nl (enc);
171 ++enc->indent; 277 ++enc->indent;
172 278
173 for (i = 0; i <= len; ++i) 279 for (i = 0; i <= len; ++i)
174 { 280 {
175 INDENT; 281 encode_indent (enc);
176 encode_sv (enc, *av_fetch (av, i, 0)); 282 encode_sv (enc, *av_fetch (av, i, 0));
177 283
178 if (i < len) 284 if (i < len)
179 COMMA; 285 encode_comma (enc);
180 } 286 }
181 287
182 NL; 288 encode_nl (enc);
183 289
184 --enc->indent; 290 --enc->indent;
185 INDENT; encode_ch (enc, ']'); 291 encode_indent (enc); encode_ch (enc, ']');
186} 292}
187 293
188static void 294static void
189encode_he (enc_t *enc, HE *he) 295encode_he (enc_t *enc, HE *he)
190{ 296{
… …
192 298
193 if (HeKLEN (he) == HEf_SVKEY) 299 if (HeKLEN (he) == HEf_SVKEY)
194 { 300 {
195 SV *sv = HeSVKEY (he); 301 SV *sv = HeSVKEY (he);
196 STRLEN len; 302 STRLEN len;
303 char *str;
304
305 SvGETMAGIC (sv);
197 char *str = SvPV (sv, len); 306 str = SvPV (sv, len);
198 307
199 encode_str (enc, str, len, SvUTF8 (sv)); 308 encode_str (enc, str, len, SvUTF8 (sv));
200 } 309 }
201 else 310 else
202 encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he)); 311 encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he));
203 312
204 encode_ch (enc, '"'); 313 encode_ch (enc, '"');
205 314
206 if (enc->flags & F_SPACE_BEFORE) SPACE; 315 if (enc->flags & F_SPACE_BEFORE) encode_space (enc);
207 encode_ch (enc, ':'); 316 encode_ch (enc, ':');
208 if (enc->flags & F_SPACE_AFTER ) SPACE; 317 if (enc->flags & F_SPACE_AFTER ) encode_space (enc);
209 encode_sv (enc, HeVAL (he)); 318 encode_sv (enc, HeVAL (he));
210} 319}
211 320
212// compare hash entries, used when all keys are bytestrings 321// compare hash entries, used when all keys are bytestrings
213static int 322static int
… …
219 HE *b = *(HE **)b_; 328 HE *b = *(HE **)b_;
220 329
221 STRLEN la = HeKLEN (a); 330 STRLEN la = HeKLEN (a);
222 STRLEN lb = HeKLEN (b); 331 STRLEN lb = HeKLEN (b);
223 332
224 if (!(cmp == memcmp (HeKEY (a), HeKEY (b), la < lb ? la : lb))) 333 if (!(cmp = memcmp (HeKEY (a), HeKEY (b), la < lb ? la : lb)))
225 cmp = la < lb ? -1 : la == lb ? 0 : 1; 334 cmp = la - lb;
226 335
227 return cmp; 336 return cmp;
228} 337}
229 338
230// compare hash entries, used when some keys are sv's or utf-x 339// compare hash entries, used when some keys are sv's or utf-x
… …
237static void 346static void
238encode_hv (enc_t *enc, HV *hv) 347encode_hv (enc_t *enc, HV *hv)
239{ 348{
240 int count, i; 349 int count, i;
241 350
351 if (enc->indent >= enc->maxdepth)
352 croak ("data structure too deep (hit recursion limit)");
353
242 encode_ch (enc, '{'); NL; ++enc->indent; 354 encode_ch (enc, '{'); encode_nl (enc); ++enc->indent;
243 355
244 if ((count = hv_iterinit (hv))) 356 if ((count = hv_iterinit (hv)))
245 { 357 {
246 // for canonical output we have to sort by keys first 358 // for canonical output we have to sort by keys first
247 // actually, this is mostly due to the stupid so-called 359 // actually, this is mostly due to the stupid so-called
248 // security workaround added somewhere in 5.8.x. 360 // security workaround added somewhere in 5.8.x.
249 // that randomises hash orderings 361 // that randomises hash orderings
250 if (enc->flags & F_CANONICAL) 362 if (enc->flags & F_CANONICAL)
251 { 363 {
252 HE *he, *hes [count]; 364 HE *he, *hes [count]; // if your compiler dies here, you need to enable C99 mode
253 int fast = 1; 365 int fast = 1;
254 366
255 i = 0; 367 i = 0;
256 while ((he = hv_iternext (hv))) 368 while ((he = hv_iternext (hv)))
257 { 369 {
… …
264 376
265 if (fast) 377 if (fast)
266 qsort (hes, count, sizeof (HE *), he_cmp_fast); 378 qsort (hes, count, sizeof (HE *), he_cmp_fast);
267 else 379 else
268 { 380 {
269 // hack to disable "use bytes" 381 // hack to forcefully disable "use bytes"
270 COP *oldcop = PL_curcop, cop; 382 COP cop = *PL_curcop;
271 cop.op_private = 0; 383 cop.op_private = 0;
384
385 ENTER;
386 SAVETMPS;
387
388 SAVEVPTR (PL_curcop);
272 PL_curcop = &cop; 389 PL_curcop = &cop;
273 390
274 SAVETMPS;
275 qsort (hes, count, sizeof (HE *), he_cmp_slow); 391 qsort (hes, count, sizeof (HE *), he_cmp_slow);
392
276 FREETMPS; 393 FREETMPS;
277 394 LEAVE;
278 PL_curcop = oldcop;
279 } 395 }
280 396
281 for (i = 0; i < count; ++i) 397 for (i = 0; i < count; ++i)
282 { 398 {
283 INDENT; 399 encode_indent (enc);
284 encode_he (enc, hes [i]); 400 encode_he (enc, hes [i]);
285 401
286 if (i < count - 1) 402 if (i < count - 1)
287 COMMA; 403 encode_comma (enc);
288 } 404 }
289 405
290 NL; 406 encode_nl (enc);
291 } 407 }
292 else 408 else
293 { 409 {
294 SV *sv; 410 SV *sv;
295 HE *he = hv_iternext (hv); 411 HE *he = hv_iternext (hv);
296 412
297 for (;;) 413 for (;;)
298 { 414 {
299 INDENT; 415 encode_indent (enc);
300 encode_he (enc, he); 416 encode_he (enc, he);
301 417
302 if (!(he = hv_iternext (hv))) 418 if (!(he = hv_iternext (hv)))
303 break; 419 break;
304 420
305 COMMA; 421 encode_comma (enc);
306 } 422 }
307 423
308 NL; 424 encode_nl (enc);
309 } 425 }
310 } 426 }
311 427
312 --enc->indent; INDENT; encode_ch (enc, '}'); 428 --enc->indent; encode_indent (enc); encode_ch (enc, '}');
429}
430
431// encode objects, arrays and special \0=false and \1=true values.
432static void
433encode_rv (enc_t *enc, SV *sv)
434{
435 SvGETMAGIC (sv);
436
437 svtype svt = SvTYPE (sv);
438
439 if (svt == SVt_PVHV)
440 encode_hv (enc, (HV *)sv);
441 else if (svt == SVt_PVAV)
442 encode_av (enc, (AV *)sv);
443 else if (svt < SVt_PVAV)
444 {
445 if (SvNIOK (sv) && SvIV (sv) == 0)
446 encode_str (enc, "false", 5, 0);
447 else if (SvNIOK (sv) && SvIV (sv) == 1)
448 encode_str (enc, "true", 4, 0);
449 else
450 croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1",
451 SvPV_nolen (sv_2mortal (newRV_inc (sv))));
452 }
453 else
454 croak ("encountered %s, but JSON can only represent references to arrays or hashes",
455 SvPV_nolen (sv_2mortal (newRV_inc (sv))));
313} 456}
314 457
315static void 458static void
316encode_sv (enc_t *enc, SV *sv) 459encode_sv (enc_t *enc, SV *sv)
317{ 460{
461 SvGETMAGIC (sv);
462
318 if (SvPOKp (sv)) 463 if (SvPOKp (sv))
319 { 464 {
320 STRLEN len; 465 STRLEN len;
321 char *str = SvPV (sv, len); 466 char *str = SvPV (sv, len);
322 encode_ch (enc, '"'); 467 encode_ch (enc, '"');
… …
336 SvIsUV(sv) 481 SvIsUV(sv)
337 ? snprintf (enc->cur, 64, "%"UVuf, (UV)SvUVX (sv)) 482 ? snprintf (enc->cur, 64, "%"UVuf, (UV)SvUVX (sv))
338 : snprintf (enc->cur, 64, "%"IVdf, (IV)SvIVX (sv)); 483 : snprintf (enc->cur, 64, "%"IVdf, (IV)SvIVX (sv));
339 } 484 }
340 else if (SvROK (sv)) 485 else if (SvROK (sv))
341 { 486 encode_rv (enc, SvRV (sv));
342 if (!--enc->max_recurse)
343 croak ("data structure too deep (hit recursion limit)");
344
345 sv = SvRV (sv);
346
347 switch (SvTYPE (sv))
348 {
349 case SVt_PVAV: encode_av (enc, (AV *)sv); break;
350 case SVt_PVHV: encode_hv (enc, (HV *)sv); break;
351
352 default:
353 croak ("JSON can only represent references to arrays or hashes");
354 }
355 }
356 else if (!SvOK (sv)) 487 else if (!SvOK (sv))
357 encode_str (enc, "null", 4, 0); 488 encode_str (enc, "null", 4, 0);
358 else 489 else
359 croak ("encountered perl type that JSON cannot handle"); 490 croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this",
491 SvPV_nolen (sv), SvFLAGS (sv));
360} 492}
361 493
362static SV * 494static SV *
363encode_json (SV *scalar, UV flags) 495encode_json (SV *scalar, U32 flags)
364{ 496{
365 if (!(flags & F_ALLOW_NONREF) && !SvROK (scalar)) 497 if (!(flags & F_ALLOW_NONREF) && !SvROK (scalar))
366 croak ("hash- or arraref required (not a simple scalar, use allow_nonref to allow this)"); 498 croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)");
367 499
368 enc_t enc; 500 enc_t enc;
369 enc.flags = flags; 501 enc.flags = flags;
370 enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); 502 enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE));
371 enc.cur = SvPVX (enc.sv); 503 enc.cur = SvPVX (enc.sv);
372 enc.end = SvEND (enc.sv); 504 enc.end = SvEND (enc.sv);
373 enc.max_recurse = 0;
374 enc.indent = 0; 505 enc.indent = 0;
506 enc.maxdepth = DEC_DEPTH (flags);
375 507
376 SvPOK_only (enc.sv); 508 SvPOK_only (enc.sv);
377 encode_sv (&enc, scalar); 509 encode_sv (&enc, scalar);
378 510
379 if (!(flags & (F_ASCII | F_UTF8))) 511 if (!(flags & (F_ASCII | F_UTF8)))
380 SvUTF8_on (enc.sv); 512 SvUTF8_on (enc.sv);
381 513
382 SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); 514 SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv));
515
516 if (enc.flags & F_SHRINK)
517 shrink (enc.sv);
518
383 return enc.sv; 519 return enc.sv;
384} 520}
385 521
386///////////////////////////////////////////////////////////////////////////// 522/////////////////////////////////////////////////////////////////////////////
523// decoder
387 524
388#define WS \ 525// structure used for decoding JSON
526typedef struct
527{
528 char *cur; // current parser pointer
529 char *end; // end of input string
530 const char *err; // parse error, if != 0
531 U32 flags; // F_*
532 U32 depth; // recursion depth
533 U32 maxdepth; // recursion depth limit
534} dec_t;
535
536static void
537decode_ws (dec_t *dec)
538{
389 for (;;) \ 539 for (;;)
390 { \ 540 {
391 char ch = *dec->cur; \ 541 char ch = *dec->cur;
542
392 if (ch > 0x20 \ 543 if (ch > 0x20
393 || (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09)) \ 544 || (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09))
394 break; \ 545 break;
546
395 ++dec->cur; \ 547 ++dec->cur;
396 } 548 }
549}
397 550
398#define ERR(reason) SB dec->err = reason; goto fail; SE 551#define ERR(reason) SB dec->err = reason; goto fail; SE
552
399#define EXPECT_CH(ch) SB \ 553#define EXPECT_CH(ch) SB \
400 if (*dec->cur != ch) \ 554 if (*dec->cur != ch) \
401 ERR (# ch " expected"); \ 555 ERR (# ch " expected"); \
402 ++dec->cur; \ 556 ++dec->cur; \
403 SE 557 SE
404 558
559#define DEC_INC_DEPTH if (++dec->depth > dec->maxdepth) ERR ("json datastructure exceeds maximum nesting level (set a higher max_depth)")
560#define DEC_DEC_DEPTH --dec->depth
561
405static SV *decode_sv (dec_t *dec); 562static SV *decode_sv (dec_t *dec);
406
407#define APPEND_CH(ch) SB \
408 SvGROW (sv, cur + 1 + 1); \
409 SvPVX (sv)[cur++] = (ch); \
410 SE
411 563
412static signed char decode_hexdigit[256]; 564static signed char decode_hexdigit[256];
413 565
414static UV 566static UV
415decode_4hex (dec_t *dec) 567decode_4hex (dec_t *dec)
416{ 568{
417 signed char d1, d2, d3, d4; 569 signed char d1, d2, d3, d4;
570 unsigned char *cur = (unsigned char *)dec->cur;
418 571
419 d1 = decode_hexdigit [((unsigned char *)dec->cur) [0]];
420 if (d1 < 0) ERR ("four hexadecimal digits expected"); 572 d1 = decode_hexdigit [cur [0]]; if (d1 < 0) ERR ("four hexadecimal digits expected");
421 d2 = decode_hexdigit [((unsigned char *)dec->cur) [1]];
422 if (d2 < 0) ERR ("four hexadecimal digits expected"); 573 d2 = decode_hexdigit [cur [1]]; if (d2 < 0) ERR ("four hexadecimal digits expected");
423 d3 = decode_hexdigit [((unsigned char *)dec->cur) [2]];
424 if (d3 < 0) ERR ("four hexadecimal digits expected"); 574 d3 = decode_hexdigit [cur [2]]; if (d3 < 0) ERR ("four hexadecimal digits expected");
425 d4 = decode_hexdigit [((unsigned char *)dec->cur) [3]];
426 if (d4 < 0) ERR ("four hexadecimal digits expected"); 575 d4 = decode_hexdigit [cur [3]]; if (d4 < 0) ERR ("four hexadecimal digits expected");
427 576
428 dec->cur += 4; 577 dec->cur += 4;
429 578
430 return ((UV)d1) << 12 579 return ((UV)d1) << 12
431 | ((UV)d2) << 8 580 | ((UV)d2) << 8
… …
437} 586}
438 587
439static SV * 588static SV *
440decode_str (dec_t *dec) 589decode_str (dec_t *dec)
441{ 590{
442 SV *sv = NEWSV (0,2); 591 SV *sv = 0;
443 STRLEN cur = 0;
444 int utf8 = 0; 592 int utf8 = 0;
445 593
446 for (;;) 594 do
447 { 595 {
448 unsigned char ch = *(unsigned char *)dec->cur; 596 char buf [SHORT_STRING_LEN + UTF8_MAX_LEN];
597 char *cur = buf;
449 598
450 if (ch == '"') 599 do
451 break;
452 else if (ch == '\\')
453 { 600 {
454 switch (*++dec->cur) 601 unsigned char ch = *(unsigned char *)dec->cur++;
602
603 if (ch == '"')
455 { 604 {
456 case '\\': 605 --dec->cur;
457 case '/': 606 break;
458 case '"': APPEND_CH (*dec->cur++); break; 607 }
459 608 else if (ch == '\\')
460 case 'b': APPEND_CH ('\010'); ++dec->cur; break; 609 {
461 case 't': APPEND_CH ('\011'); ++dec->cur; break; 610 switch (*dec->cur)
462 case 'n': APPEND_CH ('\012'); ++dec->cur; break;
463 case 'f': APPEND_CH ('\014'); ++dec->cur; break;
464 case 'r': APPEND_CH ('\015'); ++dec->cur; break;
465
466 case 'u':
467 { 611 {
468 UV lo, hi; 612 case '\\':
469 ++dec->cur; 613 case '/':
614 case '"': *cur++ = *dec->cur++; break;
470 615
471 hi = decode_4hex (dec); 616 case 'b': ++dec->cur; *cur++ = '\010'; break;
472 if (hi == (UV)-1) 617 case 't': ++dec->cur; *cur++ = '\011'; break;
473 goto fail; 618 case 'n': ++dec->cur; *cur++ = '\012'; break;
619 case 'f': ++dec->cur; *cur++ = '\014'; break;
620 case 'r': ++dec->cur; *cur++ = '\015'; break;
474 621
475 // possibly a surrogate pair 622 case 'u':
476 if (hi >= 0xd800 && hi < 0xdc00)
477 { 623 {
478 if (dec->cur [0] != '\\' || dec->cur [1] != 'u') 624 UV lo, hi;
479 ERR ("illegal surrogate character");
480
481 dec->cur += 2; 625 ++dec->cur;
482 626
483 lo = decode_4hex (dec); 627 hi = decode_4hex (dec);
484 if (lo == (UV)-1) 628 if (hi == (UV)-1)
485 goto fail; 629 goto fail;
486 630
631 // possibly a surrogate pair
632 if (hi >= 0xd800)
633 if (hi < 0xdc00)
634 {
635 if (dec->cur [0] != '\\' || dec->cur [1] != 'u')
636 ERR ("missing low surrogate character in surrogate pair");
637
638 dec->cur += 2;
639
640 lo = decode_4hex (dec);
641 if (lo == (UV)-1)
642 goto fail;
643
487 if (lo < 0xdc00 || lo >= 0xe000) 644 if (lo < 0xdc00 || lo >= 0xe000)
488 ERR ("surrogate pair expected"); 645 ERR ("surrogate pair expected");
489 646
490 hi = (hi - 0xD800) * 0x400 + (lo - 0xDC00) + 0x10000; 647 hi = (hi - 0xD800) * 0x400 + (lo - 0xDC00) + 0x10000;
648 }
649 else if (hi < 0xe000)
650 ERR ("missing high surrogate character in surrogate pair");
651
652 if (hi >= 0x80)
653 {
654 utf8 = 1;
655
656 cur = (char *)uvuni_to_utf8_flags (cur, hi, 0);
657 }
658 else
659 *cur++ = hi;
491 } 660 }
492 else if (lo >= 0xdc00 && lo < 0xe000)
493 ERR ("illegal surrogate character");
494
495 if (hi >= 0x80)
496 { 661 break;
497 utf8 = 1;
498 662
499 SvGROW (sv, cur + 4 + 1); // at most 4 bytes for 21 bits
500 cur = (char *)uvuni_to_utf8_flags (SvPVX (sv) + cur, hi, 0) - SvPVX (sv);
501 }
502 else 663 default:
503 APPEND_CH (hi); 664 --dec->cur;
665 ERR ("illegal backslash escape sequence in string");
504 } 666 }
505 break;
506 } 667 }
668 else if (ch >= 0x20 && ch <= 0x7f)
669 *cur++ = ch;
670 else if (ch >= 0x80)
671 {
672 --dec->cur;
673
674 STRLEN clen;
675 UV uch = decode_utf8 (dec->cur, dec->end - dec->cur, &clen);
676 if (clen == (STRLEN)-1)
677 ERR ("malformed UTF-8 character in JSON string");
678
679 do
680 {
681 *cur++ = *dec->cur++;
682 }
683 while (--clen);
684
685 utf8 = 1;
686 }
687 else if (!ch)
688 ERR ("unexpected end of string while parsing json string");
689 else
690 ERR ("invalid character encountered");
691
507 } 692 }
508 else if (ch >= 0x20 && ch <= 0x7f) 693 while (cur < buf + SHORT_STRING_LEN);
509 APPEND_CH (*dec->cur++); 694
510 else if (ch >= 0x80) 695 STRLEN len = cur - buf;
696
697 if (sv)
511 { 698 {
512 STRLEN clen; 699 SvGROW (sv, SvCUR (sv) + len + 1);
513 UV uch = utf8n_to_uvuni (dec->cur, dec->end - dec->cur, &clen, UTF8_CHECK_ONLY); 700 memcpy (SvPVX (sv) + SvCUR (sv), buf, len);
514 if (clen < 0) 701 SvCUR_set (sv, SvCUR (sv) + len);
515 ERR ("malformed UTF-8 character in string, cannot convert to JSON");
516
517 SvGROW (sv, cur + clen + 1); // at most 4 bytes for 21 bits
518 memcpy (SvPVX (sv) + cur, dec->cur, clen);
519 dec->cur += clen;
520 } 702 }
521 else 703 else
522 ERR ("invalid character encountered"); 704 sv = newSVpvn (buf, len);
523 } 705 }
706 while (*dec->cur != '"');
524 707
525 ++dec->cur; 708 ++dec->cur;
526 709
710 if (sv)
711 {
527 SvPOK_only (sv); 712 SvPOK_only (sv);
528
529 SvCUR_set (sv, cur);
530 *SvEND (sv) = 0; 713 *SvEND (sv) = 0;
531 714
532 if (utf8) 715 if (utf8)
533 SvUTF8_on (sv); 716 SvUTF8_on (sv);
717 }
718 else
719 sv = newSVpvn ("", 0);
534 720
535 return sv; 721 return sv;
536 722
537fail: 723fail:
538 SvREFCNT_dec (sv);
539 return 0; 724 return 0;
540} 725}
541 726
542static SV * 727static SV *
543decode_num (dec_t *dec) 728decode_num (dec_t *dec)
… …
553 { 738 {
554 ++dec->cur; 739 ++dec->cur;
555 if (*dec->cur >= '0' && *dec->cur <= '9') 740 if (*dec->cur >= '0' && *dec->cur <= '9')
556 ERR ("malformed number (leading zero must not be followed by another digit)"); 741 ERR ("malformed number (leading zero must not be followed by another digit)");
557 } 742 }
558 743 else if (*dec->cur < '0' || *dec->cur > '9')
559 // int 744 ERR ("malformed number (no digits after initial minus)");
745 else
746 do
747 {
748 ++dec->cur;
749 }
560 while (*dec->cur >= '0' && *dec->cur <= '9') 750 while (*dec->cur >= '0' && *dec->cur <= '9');
561 ++dec->cur;
562 751
563 // [frac] 752 // [frac]
564 if (*dec->cur == '.') 753 if (*dec->cur == '.')
565 { 754 {
566 is_nv = 1; 755 ++dec->cur;
756
757 if (*dec->cur < '0' || *dec->cur > '9')
758 ERR ("malformed number (no digits after decimal point)");
567 759
568 do 760 do
569 { 761 {
570 ++dec->cur; 762 ++dec->cur;
571 } 763 }
572 while (*dec->cur >= '0' && *dec->cur <= '9'); 764 while (*dec->cur >= '0' && *dec->cur <= '9');
765
766 is_nv = 1;
573 } 767 }
574 768
575 // [exp] 769 // [exp]
576 if (*dec->cur == 'e' || *dec->cur == 'E') 770 if (*dec->cur == 'e' || *dec->cur == 'E')
577 { 771 {
578 is_nv = 1;
579
580 ++dec->cur; 772 ++dec->cur;
773
581 if (*dec->cur == '-' || *dec->cur == '+') 774 if (*dec->cur == '-' || *dec->cur == '+')
582 ++dec->cur; 775 ++dec->cur;
583 776
777 if (*dec->cur < '0' || *dec->cur > '9')
778 ERR ("malformed number (no digits after exp sign)");
779
780 do
781 {
782 ++dec->cur;
783 }
584 while (*dec->cur >= '0' && *dec->cur <= '9') 784 while (*dec->cur >= '0' && *dec->cur <= '9');
585 ++dec->cur; 785
786 is_nv = 1;
586 } 787 }
587 788
588 if (!is_nv) 789 if (!is_nv)
589 { 790 {
590 UV uv; 791 UV uv;
… …
608static SV * 809static SV *
609decode_av (dec_t *dec) 810decode_av (dec_t *dec)
610{ 811{
611 AV *av = newAV (); 812 AV *av = newAV ();
612 813
814 DEC_INC_DEPTH;
815 decode_ws (dec);
816
817 if (*dec->cur == ']')
818 ++dec->cur;
819 else
613 for (;;) 820 for (;;)
614 { 821 {
615 SV *value; 822 SV *value;
616 823
617 value = decode_sv (dec); 824 value = decode_sv (dec);
618 if (!value) 825 if (!value)
619 goto fail; 826 goto fail;
620 827
621 av_push (av, value); 828 av_push (av, value);
622 829
623 WS; 830 decode_ws (dec);
624 831
625 if (*dec->cur == ']') 832 if (*dec->cur == ']')
626 { 833 {
627 ++dec->cur; 834 ++dec->cur;
628 break; 835 break;
836 }
629 } 837
630
631 if (*dec->cur != ',') 838 if (*dec->cur != ',')
632 ERR (", or ] expected while parsing array"); 839 ERR (", or ] expected while parsing array");
633 840
634 ++dec->cur; 841 ++dec->cur;
635 } 842 }
636 843
844 DEC_DEC_DEPTH;
637 return newRV_noinc ((SV *)av); 845 return newRV_noinc ((SV *)av);
638 846
639fail: 847fail:
640 SvREFCNT_dec (av); 848 SvREFCNT_dec (av);
849 DEC_DEC_DEPTH;
641 return 0; 850 return 0;
642} 851}
643 852
644static SV * 853static SV *
645decode_hv (dec_t *dec) 854decode_hv (dec_t *dec)
646{ 855{
647 HV *hv = newHV (); 856 HV *hv = newHV ();
648 857
858 DEC_INC_DEPTH;
859 decode_ws (dec);
860
861 if (*dec->cur == '}')
862 ++dec->cur;
863 else
649 for (;;) 864 for (;;)
650 { 865 {
651 SV *key, *value; 866 SV *key, *value;
652 867
653 WS; EXPECT_CH ('"'); 868 decode_ws (dec); EXPECT_CH ('"');
654 869
655 key = decode_str (dec); 870 key = decode_str (dec);
656 if (!key) 871 if (!key)
657 goto fail;
658
659 WS; EXPECT_CH (':');
660
661 value = decode_sv (dec);
662 if (!value)
663 {
664 SvREFCNT_dec (key);
665 goto fail; 872 goto fail;
873
874 decode_ws (dec); EXPECT_CH (':');
875
876 value = decode_sv (dec);
877 if (!value)
878 {
879 SvREFCNT_dec (key);
880 goto fail;
666 } 881 }
667 882
668 //TODO: optimise
669 hv_store_ent (hv, key, value, 0); 883 hv_store_ent (hv, key, value, 0);
884 SvREFCNT_dec (key);
670 885
671 WS; 886 decode_ws (dec);
672 887
673 if (*dec->cur == '}') 888 if (*dec->cur == '}')
674 { 889 {
675 ++dec->cur; 890 ++dec->cur;
676 break; 891 break;
677 } 892 }
678 893
679 if (*dec->cur != ',') 894 if (*dec->cur != ',')
680 ERR (", or } expected while parsing object/hash"); 895 ERR (", or } expected while parsing object/hash");
681 896
682 ++dec->cur; 897 ++dec->cur;
683 } 898 }
684 899
900 DEC_DEC_DEPTH;
685 return newRV_noinc ((SV *)hv); 901 return newRV_noinc ((SV *)hv);
686 902
687fail: 903fail:
688 SvREFCNT_dec (hv); 904 SvREFCNT_dec (hv);
905 DEC_DEC_DEPTH;
689 return 0; 906 return 0;
690} 907}
691 908
692static SV * 909static SV *
693decode_sv (dec_t *dec) 910decode_sv (dec_t *dec)
694{ 911{
695 WS; 912 decode_ws (dec);
696 switch (*dec->cur) 913 switch (*dec->cur)
697 { 914 {
698 case '"': ++dec->cur; return decode_str (dec); 915 case '"': ++dec->cur; return decode_str (dec);
699 case '[': ++dec->cur; return decode_av (dec); 916 case '[': ++dec->cur; return decode_av (dec);
700 case '{': ++dec->cur; return decode_hv (dec); 917 case '{': ++dec->cur; return decode_hv (dec);
… …
728 945
729 case 'n': 946 case 'n':
730 if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "null", 4)) 947 if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "null", 4))
731 { 948 {
732 dec->cur += 4; 949 dec->cur += 4;
733 return newSViv (1); 950 return newSVsv (&PL_sv_undef);
734 } 951 }
735 else 952 else
736 ERR ("'null' expected"); 953 ERR ("'null' expected");
737 954
738 break; 955 break;
739 956
740 default: 957 default:
741 ERR ("malformed json string"); 958 ERR ("malformed json string, neither array, object, number, string or atom");
742 break; 959 break;
743 } 960 }
744 961
745fail: 962fail:
746 return 0; 963 return 0;
747} 964}
748 965
749static SV * 966static SV *
750decode_json (SV *string, UV flags) 967decode_json (SV *string, U32 flags)
751{ 968{
752 SV *sv; 969 SV *sv;
753 970
754 if (!(flags & F_UTF8)) 971 if (flags & F_UTF8)
972 sv_utf8_downgrade (string, 0);
973 else
755 sv_utf8_upgrade (string); 974 sv_utf8_upgrade (string);
756 975
757 SvGROW (string, SvCUR (string) + 1); // should basically be a NOP 976 SvGROW (string, SvCUR (string) + 1); // should basically be a NOP
758 977
759 dec_t dec; 978 dec_t dec;
760 dec.flags = flags; 979 dec.flags = flags;
761 dec.cur = SvPVX (string); 980 dec.cur = SvPVX (string);
762 dec.end = SvEND (string); 981 dec.end = SvEND (string);
763 dec.err = 0; 982 dec.err = 0;
983 dec.depth = 0;
984 dec.maxdepth = DEC_DEPTH (dec.flags);
764 985
765 *dec.end = 1; // invalid anywhere 986 *dec.end = 0; // this should basically be a nop, too, but make sure its there
766 sv = decode_sv (&dec); 987 sv = decode_sv (&dec);
767 *dec.end = 0;
768 988
769 if (!sv) 989 if (!sv)
770 { 990 {
991 IV offset = dec.flags & F_UTF8
992 ? dec.cur - SvPVX (string)
771 IV offset = utf8_distance (dec.cur, SvPVX (string)); 993 : utf8_distance (dec.cur, SvPVX (string));
772 SV *uni = sv_newmortal (); 994 SV *uni = sv_newmortal ();
773 995
996 // horrible hack to silence warning inside pv_uni_display
997 COP cop = *PL_curcop;
998 cop.cop_warnings = pWARN_NONE;
999 ENTER;
1000 SAVEVPTR (PL_curcop);
1001 PL_curcop = &cop;
774 pv_uni_display (uni, dec.cur, dec.end - dec.cur, 20, UNI_DISPLAY_QQ); 1002 pv_uni_display (uni, dec.cur, dec.end - dec.cur, 20, UNI_DISPLAY_QQ);
1003 LEAVE;
1004
775 croak ("%s, at character %d (%s)", 1005 croak ("%s, at character offset %d (%s)",
776 dec.err, 1006 dec.err,
777 (int)offset, 1007 (int)offset,
778 dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)"); 1008 dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)");
779 } 1009 }
780 1010
781 sv = sv_2mortal (sv); 1011 sv = sv_2mortal (sv);
782 1012
783 if (!(dec.flags & F_ALLOW_NONREF) && !SvROK (sv)) 1013 if (!(dec.flags & F_ALLOW_NONREF) && !SvROK (sv))
784 croak ("JSON object or array expected (but number, string, true, false or null found, use allow_nonref to allow this)"); 1014 croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)");
785 1015
786 return sv; 1016 return sv;
787} 1017}
788 1018
1019/////////////////////////////////////////////////////////////////////////////
1020// XS interface functions
1021
789MODULE = JSON::XS PACKAGE = JSON::XS 1022MODULE = JSON::XS PACKAGE = JSON::XS
790 1023
791BOOT: 1024BOOT:
792{ 1025{
793 int i; 1026 int i;
794 1027
795 memset (decode_hexdigit, 0xff, 256); 1028 memset (decode_hexdigit, 0xff, 256);
1029
796 for (i = 10; i--; ) 1030 for (i = 0; i < 256; ++i)
797 decode_hexdigit ['0' + i] = i; 1031 decode_hexdigit [i] =
798 1032 i >= '0' && i <= '9' ? i - '0'
799 for (i = 6; --i; ) 1033 : i >= 'a' && i <= 'f' ? i - 'a' + 10
800 { 1034 : i >= 'A' && i <= 'F' ? i - 'A' + 10
801 decode_hexdigit ['a' + i] = 10 + i; 1035 : -1;
802 decode_hexdigit ['A' + i] = 10 + i;
803 }
804 1036
805 json_stash = gv_stashpv ("JSON::XS", 1); 1037 json_stash = gv_stashpv ("JSON::XS", 1);
806} 1038}
1039
1040PROTOTYPES: DISABLE
807 1041
808SV *new (char *dummy) 1042SV *new (char *dummy)
809 CODE: 1043 CODE:
810 RETVAL = sv_bless (newRV_noinc (newSVuv (F_DEFAULT)), json_stash); 1044 RETVAL = sv_bless (newRV_noinc (newSVuv (F_DEFAULT)), json_stash);
811 OUTPUT: 1045 OUTPUT:
812 RETVAL 1046 RETVAL
813 1047
814SV *ascii (SV *self, int enable) 1048SV *ascii (SV *self, int enable = 1)
815 ALIAS: 1049 ALIAS:
816 ascii = F_ASCII 1050 ascii = F_ASCII
817 utf8 = F_UTF8 1051 utf8 = F_UTF8
818 indent = F_INDENT 1052 indent = F_INDENT
819 canonical = F_CANONICAL 1053 canonical = F_CANONICAL
820 space_before = F_SPACE_BEFORE 1054 space_before = F_SPACE_BEFORE
821 space_after = F_SPACE_AFTER 1055 space_after = F_SPACE_AFTER
822 json_rpc = F_JSON_RPC
823 pretty = F_PRETTY 1056 pretty = F_PRETTY
824 allow_nonref = F_ALLOW_NONREF 1057 allow_nonref = F_ALLOW_NONREF
1058 shrink = F_SHRINK
825 CODE: 1059 CODE:
826{ 1060{
827 UV *uv = SvJSON (self); 1061 UV *uv = SvJSON (self);
828 if (enable) 1062 if (enable)
829 *uv |= ix; 1063 *uv |= ix;
… …
833 RETVAL = newSVsv (self); 1067 RETVAL = newSVsv (self);
834} 1068}
835 OUTPUT: 1069 OUTPUT:
836 RETVAL 1070 RETVAL
837 1071
1072SV *max_depth (SV *self, int max_depth = 0x80000000UL)
1073 CODE:
1074{
1075 UV *uv = SvJSON (self);
1076 UV log2 = 0;
1077
1078 if (max_depth > 0x80000000UL) max_depth = 0x80000000UL;
1079
1080 while ((1UL << log2) < max_depth)
1081 ++log2;
1082
1083 *uv = *uv & ~F_MAXDEPTH | (log2 << S_MAXDEPTH);
1084
1085 RETVAL = newSVsv (self);
1086}
1087 OUTPUT:
1088 RETVAL
1089
838void encode (SV *self, SV *scalar) 1090void encode (SV *self, SV *scalar)
839 PPCODE: 1091 PPCODE:
840 XPUSHs (encode_json (scalar, *SvJSON (self))); 1092 XPUSHs (encode_json (scalar, *SvJSON (self)));
841 1093
842void decode (SV *self, SV *jsonstr) 1094void decode (SV *self, SV *jsonstr)
843 PPCODE: 1095 PPCODE:
844 XPUSHs (decode_json (jsonstr, *SvJSON (self))); 1096 XPUSHs (decode_json (jsonstr, *SvJSON (self)));
845 1097
1098PROTOTYPES: ENABLE
1099
846void to_json (SV *scalar) 1100void to_json (SV *scalar)
1101 ALIAS:
1102 objToJson = 0
847 PPCODE: 1103 PPCODE:
848 XPUSHs (encode_json (scalar, F_UTF8)); 1104 XPUSHs (encode_json (scalar, F_DEFAULT | F_UTF8));
849 1105
850void from_json (SV *jsonstr) 1106void from_json (SV *jsonstr)
1107 ALIAS:
1108 jsonToObj = 0
851 PPCODE: 1109 PPCODE:
852 XPUSHs (decode_json (jsonstr, F_UTF8)); 1110 XPUSHs (decode_json (jsonstr, F_DEFAULT | F_UTF8));
853 1111

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