1 | #include "EXTERN.h" |
1 | #include "EXTERN.h" |
2 | #include "perl.h" |
2 | #include "perl.h" |
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 | #include <stdio.h> |
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9 | #include <float.h> |
9 | |
10 | |
10 | #if defined(__BORLANDC__) || defined(_MSC_VER) |
11 | #if defined(__BORLANDC__) || defined(_MSC_VER) |
11 | # define snprintf _snprintf // C compilers have this in stdio.h |
12 | # define snprintf _snprintf // C compilers have this in stdio.h |
12 | #endif |
13 | #endif |
13 | |
14 | |
… | |
… | |
25 | #define F_SPACE_BEFORE 0x00000020UL |
26 | #define F_SPACE_BEFORE 0x00000020UL |
26 | #define F_SPACE_AFTER 0x00000040UL |
27 | #define F_SPACE_AFTER 0x00000040UL |
27 | #define F_ALLOW_NONREF 0x00000100UL |
28 | #define F_ALLOW_NONREF 0x00000100UL |
28 | #define F_SHRINK 0x00000200UL |
29 | #define F_SHRINK 0x00000200UL |
29 | #define F_ALLOW_BLESSED 0x00000400UL |
30 | #define F_ALLOW_BLESSED 0x00000400UL |
30 | #define F_CONV_BLESSED 0x00000800UL // NYI |
31 | #define F_CONV_BLESSED 0x00000800UL |
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32 | #define F_RELAXED 0x00001000UL |
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33 | |
31 | #define F_MAXDEPTH 0xf8000000UL |
34 | #define F_MAXDEPTH 0xf8000000UL |
32 | #define S_MAXDEPTH 27 |
35 | #define S_MAXDEPTH 27 |
33 | #define F_MAXSIZE 0x01f00000UL |
36 | #define F_MAXSIZE 0x01f00000UL |
34 | #define S_MAXSIZE 20 |
37 | #define S_MAXSIZE 20 |
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38 | #define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing |
35 | |
39 | |
36 | #define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH)) |
40 | #define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH)) |
37 | #define DEC_SIZE(flags) (1UL << ((flags & F_MAXSIZE ) >> S_MAXSIZE )) |
41 | #define DEC_SIZE(flags) (1UL << ((flags & F_MAXSIZE ) >> S_MAXSIZE )) |
38 | |
42 | |
39 | #define F_PRETTY F_INDENT | F_SPACE_BEFORE | F_SPACE_AFTER |
43 | #define F_PRETTY F_INDENT | F_SPACE_BEFORE | F_SPACE_AFTER |
… | |
… | |
56 | #endif |
60 | #endif |
57 | |
61 | |
58 | #define expect_false(expr) expect ((expr) != 0, 0) |
62 | #define expect_false(expr) expect ((expr) != 0, 0) |
59 | #define expect_true(expr) expect ((expr) != 0, 1) |
63 | #define expect_true(expr) expect ((expr) != 0, 1) |
60 | |
64 | |
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65 | #ifdef USE_ITHREADS |
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66 | # define JSON_SLOW 1 |
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67 | # define JSON_STASH (json_stash ? json_stash : gv_stashpv ("JSON::XS", 1)) |
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68 | #else |
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69 | # define JSON_SLOW 0 |
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70 | # define JSON_STASH json_stash |
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71 | #endif |
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72 | |
61 | static HV *json_stash, *json_boolean_stash; // JSON::XS:: |
73 | static HV *json_stash, *json_boolean_stash; // JSON::XS:: |
62 | static SV *json_true, *json_false; |
74 | static SV *json_true, *json_false; |
63 | |
75 | |
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76 | typedef struct { |
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77 | U32 flags; |
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78 | SV *cb_object; |
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79 | HV *cb_sk_object; |
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80 | } JSON; |
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81 | |
64 | ///////////////////////////////////////////////////////////////////////////// |
82 | ///////////////////////////////////////////////////////////////////////////// |
65 | // utility functions |
83 | // utility functions |
66 | |
84 | |
67 | static UV * |
85 | inline void |
68 | SvJSON (SV *sv) |
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69 | { |
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70 | if (!(SvROK (sv) && SvOBJECT (SvRV (sv)) && SvSTASH (SvRV (sv)) == json_stash)) |
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71 | croak ("object is not of type JSON::XS"); |
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72 | |
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73 | return &SvUVX (SvRV (sv)); |
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74 | } |
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75 | |
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76 | static void |
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77 | shrink (SV *sv) |
86 | shrink (SV *sv) |
78 | { |
87 | { |
79 | sv_utf8_downgrade (sv, 1); |
88 | sv_utf8_downgrade (sv, 1); |
80 | if (SvLEN (sv) > SvCUR (sv) + 1) |
89 | if (SvLEN (sv) > SvCUR (sv) + 1) |
81 | { |
90 | { |
… | |
… | |
116 | typedef struct |
125 | typedef struct |
117 | { |
126 | { |
118 | char *cur; // SvPVX (sv) + current output position |
127 | char *cur; // SvPVX (sv) + current output position |
119 | char *end; // SvEND (sv) |
128 | char *end; // SvEND (sv) |
120 | SV *sv; // result scalar |
129 | SV *sv; // result scalar |
121 | U32 flags; // F_* |
130 | JSON json; |
122 | U32 indent; // indentation level |
131 | U32 indent; // indentation level |
123 | U32 maxdepth; // max. indentation/recursion level |
132 | U32 maxdepth; // max. indentation/recursion level |
124 | } enc_t; |
133 | } enc_t; |
125 | |
134 | |
126 | inline void |
135 | inline void |
… | |
… | |
200 | } |
209 | } |
201 | |
210 | |
202 | if (uch > 0x10FFFFUL) |
211 | if (uch > 0x10FFFFUL) |
203 | croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch); |
212 | croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch); |
204 | |
213 | |
205 | if (uch < 0x80 || enc->flags & F_ASCII || (enc->flags & F_LATIN1 && uch > 0xFF)) |
214 | if (uch < 0x80 || enc->json.flags & F_ASCII || (enc->json.flags & F_LATIN1 && uch > 0xFF)) |
206 | { |
215 | { |
207 | if (uch > 0xFFFFUL) |
216 | if (uch > 0xFFFFUL) |
208 | { |
217 | { |
209 | need (enc, len += 11); |
218 | need (enc, len += 11); |
210 | sprintf (enc->cur, "\\u%04x\\u%04x", |
219 | sprintf (enc->cur, "\\u%04x\\u%04x", |
… | |
… | |
224 | *enc->cur++ = hexdigit [(uch >> 0) & 15]; |
233 | *enc->cur++ = hexdigit [(uch >> 0) & 15]; |
225 | } |
234 | } |
226 | |
235 | |
227 | str += clen; |
236 | str += clen; |
228 | } |
237 | } |
229 | else if (enc->flags & F_LATIN1) |
238 | else if (enc->json.flags & F_LATIN1) |
230 | { |
239 | { |
231 | *enc->cur++ = uch; |
240 | *enc->cur++ = uch; |
232 | str += clen; |
241 | str += clen; |
233 | } |
242 | } |
234 | else if (is_utf8) |
243 | else if (is_utf8) |
… | |
… | |
255 | } |
264 | } |
256 | |
265 | |
257 | inline void |
266 | inline void |
258 | encode_indent (enc_t *enc) |
267 | encode_indent (enc_t *enc) |
259 | { |
268 | { |
260 | if (enc->flags & F_INDENT) |
269 | if (enc->json.flags & F_INDENT) |
261 | { |
270 | { |
262 | int spaces = enc->indent * INDENT_STEP; |
271 | int spaces = enc->indent * INDENT_STEP; |
263 | |
272 | |
264 | need (enc, spaces); |
273 | need (enc, spaces); |
265 | memset (enc->cur, ' ', spaces); |
274 | memset (enc->cur, ' ', spaces); |
… | |
… | |
275 | } |
284 | } |
276 | |
285 | |
277 | inline void |
286 | inline void |
278 | encode_nl (enc_t *enc) |
287 | encode_nl (enc_t *enc) |
279 | { |
288 | { |
280 | if (enc->flags & F_INDENT) |
289 | if (enc->json.flags & F_INDENT) |
281 | { |
290 | { |
282 | need (enc, 1); |
291 | need (enc, 1); |
283 | encode_ch (enc, '\n'); |
292 | encode_ch (enc, '\n'); |
284 | } |
293 | } |
285 | } |
294 | } |
… | |
… | |
287 | inline void |
296 | inline void |
288 | encode_comma (enc_t *enc) |
297 | encode_comma (enc_t *enc) |
289 | { |
298 | { |
290 | encode_ch (enc, ','); |
299 | encode_ch (enc, ','); |
291 | |
300 | |
292 | if (enc->flags & F_INDENT) |
301 | if (enc->json.flags & F_INDENT) |
293 | encode_nl (enc); |
302 | encode_nl (enc); |
294 | else if (enc->flags & F_SPACE_AFTER) |
303 | else if (enc->json.flags & F_SPACE_AFTER) |
295 | encode_space (enc); |
304 | encode_space (enc); |
296 | } |
305 | } |
297 | |
306 | |
298 | static void encode_sv (enc_t *enc, SV *sv); |
307 | static void encode_sv (enc_t *enc, SV *sv); |
299 | |
308 | |
… | |
… | |
303 | int i, len = av_len (av); |
312 | int i, len = av_len (av); |
304 | |
313 | |
305 | if (enc->indent >= enc->maxdepth) |
314 | if (enc->indent >= enc->maxdepth) |
306 | croak ("data structure too deep (hit recursion limit)"); |
315 | croak ("data structure too deep (hit recursion limit)"); |
307 | |
316 | |
308 | encode_ch (enc, '['); encode_nl (enc); |
317 | encode_ch (enc, '['); |
309 | ++enc->indent; |
318 | |
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319 | if (len >= 0) |
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320 | { |
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321 | encode_nl (enc); ++enc->indent; |
310 | |
322 | |
311 | for (i = 0; i <= len; ++i) |
323 | for (i = 0; i <= len; ++i) |
312 | { |
324 | { |
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325 | SV **svp = av_fetch (av, i, 0); |
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326 | |
313 | encode_indent (enc); |
327 | encode_indent (enc); |
314 | encode_sv (enc, *av_fetch (av, i, 0)); |
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315 | |
328 | |
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329 | if (svp) |
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330 | encode_sv (enc, *svp); |
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331 | else |
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332 | encode_str (enc, "null", 4, 0); |
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333 | |
316 | if (i < len) |
334 | if (i < len) |
317 | encode_comma (enc); |
335 | encode_comma (enc); |
318 | } |
336 | } |
319 | |
337 | |
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338 | encode_nl (enc); --enc->indent; encode_indent (enc); |
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339 | } |
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340 | |
320 | encode_nl (enc); |
341 | encode_ch (enc, ']'); |
321 | |
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322 | --enc->indent; |
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323 | encode_indent (enc); encode_ch (enc, ']'); |
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324 | } |
342 | } |
325 | |
343 | |
326 | static void |
344 | static void |
327 | encode_he (enc_t *enc, HE *he) |
345 | encode_hk (enc_t *enc, HE *he) |
328 | { |
346 | { |
329 | encode_ch (enc, '"'); |
347 | encode_ch (enc, '"'); |
330 | |
348 | |
331 | if (HeKLEN (he) == HEf_SVKEY) |
349 | if (HeKLEN (he) == HEf_SVKEY) |
332 | { |
350 | { |
… | |
… | |
342 | else |
360 | else |
343 | encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he)); |
361 | encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he)); |
344 | |
362 | |
345 | encode_ch (enc, '"'); |
363 | encode_ch (enc, '"'); |
346 | |
364 | |
347 | if (enc->flags & F_SPACE_BEFORE) encode_space (enc); |
365 | if (enc->json.flags & F_SPACE_BEFORE) encode_space (enc); |
348 | encode_ch (enc, ':'); |
366 | encode_ch (enc, ':'); |
349 | if (enc->flags & F_SPACE_AFTER ) encode_space (enc); |
367 | if (enc->json.flags & F_SPACE_AFTER ) encode_space (enc); |
350 | encode_sv (enc, HeVAL (he)); |
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351 | } |
368 | } |
352 | |
369 | |
353 | // compare hash entries, used when all keys are bytestrings |
370 | // compare hash entries, used when all keys are bytestrings |
354 | static int |
371 | static int |
355 | he_cmp_fast (const void *a_, const void *b_) |
372 | he_cmp_fast (const void *a_, const void *b_) |
… | |
… | |
360 | HE *b = *(HE **)b_; |
377 | HE *b = *(HE **)b_; |
361 | |
378 | |
362 | STRLEN la = HeKLEN (a); |
379 | STRLEN la = HeKLEN (a); |
363 | STRLEN lb = HeKLEN (b); |
380 | STRLEN lb = HeKLEN (b); |
364 | |
381 | |
365 | if (!(cmp = memcmp (HeKEY (a), HeKEY (b), la < lb ? la : lb))) |
382 | if (!(cmp = memcmp (HeKEY (b), HeKEY (a), lb < la ? lb : la))) |
366 | cmp = la - lb; |
383 | cmp = lb - la; |
367 | |
384 | |
368 | return cmp; |
385 | return cmp; |
369 | } |
386 | } |
370 | |
387 | |
371 | // compare hash entries, used when some keys are sv's or utf-x |
388 | // compare hash entries, used when some keys are sv's or utf-x |
372 | static int |
389 | static int |
373 | he_cmp_slow (const void *a, const void *b) |
390 | he_cmp_slow (const void *a, const void *b) |
374 | { |
391 | { |
375 | return sv_cmp (HeSVKEY_force (*(HE **)a), HeSVKEY_force (*(HE **)b)); |
392 | return sv_cmp (HeSVKEY_force (*(HE **)b), HeSVKEY_force (*(HE **)a)); |
376 | } |
393 | } |
377 | |
394 | |
378 | static void |
395 | static void |
379 | encode_hv (enc_t *enc, HV *hv) |
396 | encode_hv (enc_t *enc, HV *hv) |
380 | { |
397 | { |
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398 | HE *he; |
381 | int count, i; |
399 | int count; |
382 | |
400 | |
383 | if (enc->indent >= enc->maxdepth) |
401 | if (enc->indent >= enc->maxdepth) |
384 | croak ("data structure too deep (hit recursion limit)"); |
402 | croak ("data structure too deep (hit recursion limit)"); |
385 | |
403 | |
386 | encode_ch (enc, '{'); encode_nl (enc); ++enc->indent; |
404 | encode_ch (enc, '{'); |
387 | |
405 | |
388 | if ((count = hv_iterinit (hv))) |
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389 | { |
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390 | // for canonical output we have to sort by keys first |
406 | // for canonical output we have to sort by keys first |
391 | // actually, this is mostly due to the stupid so-called |
407 | // actually, this is mostly due to the stupid so-called |
392 | // security workaround added somewhere in 5.8.x. |
408 | // security workaround added somewhere in 5.8.x. |
393 | // that randomises hash orderings |
409 | // that randomises hash orderings |
394 | if (enc->flags & F_CANONICAL) |
410 | if (enc->json.flags & F_CANONICAL) |
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411 | { |
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412 | int count = hv_iterinit (hv); |
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413 | |
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414 | if (SvMAGICAL (hv)) |
395 | { |
415 | { |
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416 | // need to count by iterating. could improve by dynamically building the vector below |
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417 | // but I don't care for the speed of this special case. |
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418 | // note also that we will run into undefined behaviour when the two iterations |
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419 | // do not result in the same count, something I might care for in some later release. |
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420 | |
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421 | count = 0; |
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422 | while (hv_iternext (hv)) |
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423 | ++count; |
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424 | |
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425 | hv_iterinit (hv); |
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426 | } |
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427 | |
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428 | if (count) |
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429 | { |
396 | int fast = 1; |
430 | int i, fast = 1; |
397 | HE *he; |
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398 | #if defined(__BORLANDC__) || defined(_MSC_VER) |
431 | #if defined(__BORLANDC__) || defined(_MSC_VER) |
399 | HE **hes = _alloca (count * sizeof (HE)); |
432 | HE **hes = _alloca (count * sizeof (HE)); |
400 | #else |
433 | #else |
401 | HE *hes [count]; // if your compiler dies here, you need to enable C99 mode |
434 | HE *hes [count]; // if your compiler dies here, you need to enable C99 mode |
402 | #endif |
435 | #endif |
… | |
… | |
429 | |
462 | |
430 | FREETMPS; |
463 | FREETMPS; |
431 | LEAVE; |
464 | LEAVE; |
432 | } |
465 | } |
433 | |
466 | |
434 | for (i = 0; i < count; ++i) |
467 | encode_nl (enc); ++enc->indent; |
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468 | |
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469 | while (count--) |
435 | { |
470 | { |
436 | encode_indent (enc); |
471 | encode_indent (enc); |
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472 | he = hes [count]; |
437 | encode_he (enc, hes [i]); |
473 | encode_hk (enc, he); |
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474 | encode_sv (enc, expect_false (SvMAGICAL (hv)) ? hv_iterval (hv, he) : HeVAL (he)); |
438 | |
475 | |
439 | if (i < count - 1) |
476 | if (count) |
440 | encode_comma (enc); |
477 | encode_comma (enc); |
441 | } |
478 | } |
442 | |
479 | |
443 | encode_nl (enc); |
480 | encode_nl (enc); --enc->indent; encode_indent (enc); |
444 | } |
481 | } |
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482 | } |
445 | else |
483 | else |
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484 | { |
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485 | if (hv_iterinit (hv) || SvMAGICAL (hv)) |
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486 | if ((he = hv_iternext (hv))) |
446 | { |
487 | { |
447 | HE *he = hv_iternext (hv); |
488 | encode_nl (enc); ++enc->indent; |
448 | |
489 | |
449 | for (;;) |
490 | for (;;) |
450 | { |
491 | { |
451 | encode_indent (enc); |
492 | encode_indent (enc); |
452 | encode_he (enc, he); |
493 | encode_hk (enc, he); |
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494 | encode_sv (enc, expect_false (SvMAGICAL (hv)) ? hv_iterval (hv, he) : HeVAL (he)); |
453 | |
495 | |
454 | if (!(he = hv_iternext (hv))) |
496 | if (!(he = hv_iternext (hv))) |
455 | break; |
497 | break; |
456 | |
498 | |
457 | encode_comma (enc); |
499 | encode_comma (enc); |
458 | } |
500 | } |
459 | |
501 | |
460 | encode_nl (enc); |
502 | encode_nl (enc); --enc->indent; encode_indent (enc); |
461 | } |
503 | } |
462 | } |
504 | } |
463 | |
505 | |
464 | --enc->indent; encode_indent (enc); encode_ch (enc, '}'); |
506 | encode_ch (enc, '}'); |
465 | } |
507 | } |
466 | |
508 | |
467 | // encode objects, arrays and special \0=false and \1=true values. |
509 | // encode objects, arrays and special \0=false and \1=true values. |
468 | static void |
510 | static void |
469 | encode_rv (enc_t *enc, SV *sv) |
511 | encode_rv (enc_t *enc, SV *sv) |
… | |
… | |
473 | SvGETMAGIC (sv); |
515 | SvGETMAGIC (sv); |
474 | svt = SvTYPE (sv); |
516 | svt = SvTYPE (sv); |
475 | |
517 | |
476 | if (expect_false (SvOBJECT (sv))) |
518 | if (expect_false (SvOBJECT (sv))) |
477 | { |
519 | { |
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520 | HV *stash = !JSON_SLOW || json_boolean_stash |
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521 | ? json_boolean_stash |
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522 | : gv_stashpv ("JSON::XS::Boolean", 1); |
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523 | |
478 | if (SvSTASH (sv) == json_boolean_stash) |
524 | if (SvSTASH (sv) == stash) |
479 | { |
525 | { |
480 | if (SvIV (sv) == 0) |
526 | if (SvIV (sv)) |
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527 | encode_str (enc, "true", 4, 0); |
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528 | else |
481 | encode_str (enc, "false", 5, 0); |
529 | encode_str (enc, "false", 5, 0); |
482 | else |
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483 | encode_str (enc, "true", 4, 0); |
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484 | } |
530 | } |
485 | else |
531 | else |
486 | { |
532 | { |
487 | #if 0 |
533 | #if 0 |
488 | if (0 && sv_derived_from (rv, "JSON::Literal")) |
534 | if (0 && sv_derived_from (rv, "JSON::Literal")) |
489 | { |
535 | { |
490 | // not yet |
536 | // not yet |
491 | } |
537 | } |
492 | #endif |
538 | #endif |
493 | if (enc->flags & F_CONV_BLESSED) |
539 | if (enc->json.flags & F_CONV_BLESSED) |
494 | { |
540 | { |
495 | // we re-bless the reference to get overload and other niceties right |
541 | // we re-bless the reference to get overload and other niceties right |
496 | GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 1); |
542 | GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 0); |
497 | |
543 | |
498 | if (to_json) |
544 | if (to_json) |
499 | { |
545 | { |
500 | dSP; |
546 | dSP; |
501 | ENTER; |
547 | |
502 | SAVETMPS; |
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503 | PUSHMARK (SP); |
548 | ENTER; SAVETMPS; PUSHMARK (SP); |
504 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv))); |
549 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv))); |
505 | |
550 | |
506 | // calling with G_SCALAR ensures that we always get a 1 reutrn value |
551 | // calling with G_SCALAR ensures that we always get a 1 return value |
507 | // check anyways. |
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508 | PUTBACK; |
552 | PUTBACK; |
509 | assert (1 == call_sv ((SV *)GvCV (to_json), G_SCALAR)); |
553 | call_sv ((SV *)GvCV (to_json), G_SCALAR); |
510 | SPAGAIN; |
554 | SPAGAIN; |
511 | |
555 | |
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556 | // catch this surprisingly common error |
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557 | if (SvROK (TOPs) && SvRV (TOPs) == sv) |
|
|
558 | croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv))); |
|
|
559 | |
|
|
560 | sv = POPs; |
|
|
561 | PUTBACK; |
|
|
562 | |
512 | encode_sv (enc, POPs); |
563 | encode_sv (enc, sv); |
513 | |
564 | |
514 | FREETMPS; |
565 | FREETMPS; LEAVE; |
515 | LEAVE; |
|
|
516 | } |
566 | } |
517 | else if (enc->flags & F_ALLOW_BLESSED) |
567 | else if (enc->json.flags & F_ALLOW_BLESSED) |
518 | encode_str (enc, "null", 4, 0); |
568 | encode_str (enc, "null", 4, 0); |
519 | else |
569 | else |
520 | croak ("encountered object '%s', but neither allow_blessed enabled nor TO_JSON method available on it", |
570 | croak ("encountered object '%s', but neither allow_blessed enabled nor TO_JSON method available on it", |
521 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
571 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
522 | } |
572 | } |
523 | else if (enc->flags & F_ALLOW_BLESSED) |
573 | else if (enc->json.flags & F_ALLOW_BLESSED) |
524 | encode_str (enc, "null", 4, 0); |
574 | encode_str (enc, "null", 4, 0); |
525 | else |
575 | else |
526 | croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled", |
576 | croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled", |
527 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
577 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
528 | } |
578 | } |
… | |
… | |
531 | encode_hv (enc, (HV *)sv); |
581 | encode_hv (enc, (HV *)sv); |
532 | else if (svt == SVt_PVAV) |
582 | else if (svt == SVt_PVAV) |
533 | encode_av (enc, (AV *)sv); |
583 | encode_av (enc, (AV *)sv); |
534 | else if (svt < SVt_PVAV) |
584 | else if (svt < SVt_PVAV) |
535 | { |
585 | { |
536 | if (SvNIOK (sv) && SvIV (sv) == 0) |
586 | STRLEN len = 0; |
|
|
587 | char *pv = svt ? SvPV (sv, len) : 0; |
|
|
588 | |
|
|
589 | if (len == 1 && *pv == '1') |
|
|
590 | encode_str (enc, "true", 4, 0); |
|
|
591 | else if (len == 1 && *pv == '0') |
537 | encode_str (enc, "false", 5, 0); |
592 | encode_str (enc, "false", 5, 0); |
538 | else if (SvNIOK (sv) && SvIV (sv) == 1) |
|
|
539 | encode_str (enc, "true", 4, 0); |
|
|
540 | else |
593 | else |
541 | croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1", |
594 | croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1", |
542 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
595 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
543 | } |
596 | } |
544 | else |
597 | else |
… | |
… | |
614 | croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this", |
667 | croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this", |
615 | SvPV_nolen (sv), SvFLAGS (sv)); |
668 | SvPV_nolen (sv), SvFLAGS (sv)); |
616 | } |
669 | } |
617 | |
670 | |
618 | static SV * |
671 | static SV * |
619 | encode_json (SV *scalar, U32 flags) |
672 | encode_json (SV *scalar, JSON *json) |
620 | { |
673 | { |
621 | enc_t enc; |
674 | enc_t enc; |
622 | |
675 | |
623 | if (!(flags & F_ALLOW_NONREF) && !SvROK (scalar)) |
676 | if (!(json->flags & F_ALLOW_NONREF) && !SvROK (scalar)) |
624 | croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)"); |
677 | croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)"); |
625 | |
678 | |
626 | enc.flags = flags; |
679 | enc.json = *json; |
627 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
680 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
628 | enc.cur = SvPVX (enc.sv); |
681 | enc.cur = SvPVX (enc.sv); |
629 | enc.end = SvEND (enc.sv); |
682 | enc.end = SvEND (enc.sv); |
630 | enc.indent = 0; |
683 | enc.indent = 0; |
631 | enc.maxdepth = DEC_DEPTH (flags); |
684 | enc.maxdepth = DEC_DEPTH (enc.json.flags); |
632 | |
685 | |
633 | SvPOK_only (enc.sv); |
686 | SvPOK_only (enc.sv); |
634 | encode_sv (&enc, scalar); |
687 | encode_sv (&enc, scalar); |
635 | |
688 | |
636 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
689 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
637 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
690 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
638 | |
691 | |
639 | if (!(flags & (F_ASCII | F_LATIN1 | F_UTF8))) |
692 | if (!(enc.json.flags & (F_ASCII | F_LATIN1 | F_UTF8))) |
640 | SvUTF8_on (enc.sv); |
693 | SvUTF8_on (enc.sv); |
641 | |
694 | |
642 | if (enc.flags & F_SHRINK) |
695 | if (enc.json.flags & F_SHRINK) |
643 | shrink (enc.sv); |
696 | shrink (enc.sv); |
644 | |
697 | |
645 | return enc.sv; |
698 | return enc.sv; |
646 | } |
699 | } |
647 | |
700 | |
… | |
… | |
652 | typedef struct |
705 | typedef struct |
653 | { |
706 | { |
654 | char *cur; // current parser pointer |
707 | char *cur; // current parser pointer |
655 | char *end; // end of input string |
708 | char *end; // end of input string |
656 | const char *err; // parse error, if != 0 |
709 | const char *err; // parse error, if != 0 |
657 | U32 flags; // F_* |
710 | JSON json; |
658 | U32 depth; // recursion depth |
711 | U32 depth; // recursion depth |
659 | U32 maxdepth; // recursion depth limit |
712 | U32 maxdepth; // recursion depth limit |
660 | } dec_t; |
713 | } dec_t; |
661 | |
714 | |
662 | inline void |
715 | inline void |
|
|
716 | decode_comment (dec_t *dec) |
|
|
717 | { |
|
|
718 | // only '#'-style comments allowed a.t.m. |
|
|
719 | |
|
|
720 | while (*dec->cur && *dec->cur != 0x0a && *dec->cur != 0x0d) |
|
|
721 | ++dec->cur; |
|
|
722 | } |
|
|
723 | |
|
|
724 | inline void |
663 | decode_ws (dec_t *dec) |
725 | decode_ws (dec_t *dec) |
664 | { |
726 | { |
665 | for (;;) |
727 | for (;;) |
666 | { |
728 | { |
667 | char ch = *dec->cur; |
729 | char ch = *dec->cur; |
668 | |
730 | |
669 | if (ch > 0x20 |
731 | if (ch > 0x20) |
|
|
732 | { |
|
|
733 | if (expect_false (ch == '#')) |
|
|
734 | { |
|
|
735 | if (dec->json.flags & F_RELAXED) |
|
|
736 | decode_comment (dec); |
|
|
737 | else |
|
|
738 | break; |
|
|
739 | } |
|
|
740 | else |
|
|
741 | break; |
|
|
742 | } |
670 | || (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09)) |
743 | else if (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09) |
671 | break; |
744 | break; // parse error, but let higher level handle it, gives better error messages |
672 | |
745 | |
673 | ++dec->cur; |
746 | ++dec->cur; |
674 | } |
747 | } |
675 | } |
748 | } |
676 | |
749 | |
… | |
… | |
925 | is_nv = 1; |
998 | is_nv = 1; |
926 | } |
999 | } |
927 | |
1000 | |
928 | if (!is_nv) |
1001 | if (!is_nv) |
929 | { |
1002 | { |
|
|
1003 | int len = dec->cur - start; |
|
|
1004 | |
930 | // special case the rather common 1..4-digit-int case, assumes 32 bit ints or so |
1005 | // special case the rather common 1..4-digit-int case, assumes 32 bit ints or so |
931 | if (*start == '-') |
1006 | if (*start == '-') |
932 | switch (dec->cur - start) |
1007 | switch (len) |
933 | { |
1008 | { |
934 | case 2: return newSViv (-( start [1] - '0' * 1)); |
1009 | case 2: return newSViv (-( start [1] - '0' * 1)); |
935 | case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11)); |
1010 | case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11)); |
936 | case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111)); |
1011 | case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111)); |
937 | case 5: return newSViv (-(start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111)); |
1012 | case 5: return newSViv (-(start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111)); |
938 | } |
1013 | } |
939 | else |
1014 | else |
940 | switch (dec->cur - start) |
1015 | switch (len) |
941 | { |
1016 | { |
942 | case 1: return newSViv ( start [0] - '0' * 1); |
1017 | case 1: return newSViv ( start [0] - '0' * 1); |
943 | case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11); |
1018 | case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11); |
944 | case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111); |
1019 | case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111); |
945 | case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111); |
1020 | case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111); |
946 | } |
1021 | } |
947 | |
1022 | |
948 | { |
1023 | { |
949 | UV uv; |
1024 | UV uv; |
950 | int numtype = grok_number (start, dec->cur - start, &uv); |
1025 | int numtype = grok_number (start, len, &uv); |
951 | if (numtype & IS_NUMBER_IN_UV) |
1026 | if (numtype & IS_NUMBER_IN_UV) |
952 | if (numtype & IS_NUMBER_NEG) |
1027 | if (numtype & IS_NUMBER_NEG) |
953 | { |
1028 | { |
954 | if (uv < (UV)IV_MIN) |
1029 | if (uv < (UV)IV_MIN) |
955 | return newSViv (-(IV)uv); |
1030 | return newSViv (-(IV)uv); |
956 | } |
1031 | } |
957 | else |
1032 | else |
958 | return newSVuv (uv); |
1033 | return newSVuv (uv); |
959 | |
|
|
960 | // here would likely be the place for bigint support |
|
|
961 | } |
1034 | } |
962 | } |
|
|
963 | |
1035 | |
964 | // if we ever support bigint or bigfloat, this is the place for bigfloat |
1036 | len -= *start == '-' ? 1 : 0; |
|
|
1037 | |
|
|
1038 | // does not fit into IV or UV, try NV |
|
|
1039 | if ((sizeof (NV) == sizeof (double) && DBL_DIG >= len) |
|
|
1040 | #if defined (LDBL_DIG) |
|
|
1041 | || (sizeof (NV) == sizeof (long double) && LDBL_DIG >= len) |
|
|
1042 | #endif |
|
|
1043 | ) |
|
|
1044 | // fits into NV without loss of precision |
|
|
1045 | return newSVnv (Atof (start)); |
|
|
1046 | |
|
|
1047 | // everything else fails, convert it to a string |
|
|
1048 | return newSVpvn (start, dec->cur - start); |
|
|
1049 | } |
|
|
1050 | |
|
|
1051 | // loss of precision here |
965 | return newSVnv (Atof (start)); |
1052 | return newSVnv (Atof (start)); |
966 | |
1053 | |
967 | fail: |
1054 | fail: |
968 | return 0; |
1055 | return 0; |
969 | } |
1056 | } |
… | |
… | |
999 | |
1086 | |
1000 | if (*dec->cur != ',') |
1087 | if (*dec->cur != ',') |
1001 | ERR (", or ] expected while parsing array"); |
1088 | ERR (", or ] expected while parsing array"); |
1002 | |
1089 | |
1003 | ++dec->cur; |
1090 | ++dec->cur; |
|
|
1091 | |
|
|
1092 | decode_ws (dec); |
|
|
1093 | |
|
|
1094 | if (*dec->cur == ']' && dec->json.flags & F_RELAXED) |
|
|
1095 | { |
|
|
1096 | ++dec->cur; |
|
|
1097 | break; |
|
|
1098 | } |
1004 | } |
1099 | } |
1005 | |
1100 | |
1006 | DEC_DEC_DEPTH; |
1101 | DEC_DEC_DEPTH; |
1007 | return newRV_noinc ((SV *)av); |
1102 | return newRV_noinc ((SV *)av); |
1008 | |
1103 | |
… | |
… | |
1013 | } |
1108 | } |
1014 | |
1109 | |
1015 | static SV * |
1110 | static SV * |
1016 | decode_hv (dec_t *dec) |
1111 | decode_hv (dec_t *dec) |
1017 | { |
1112 | { |
|
|
1113 | SV *sv; |
1018 | HV *hv = newHV (); |
1114 | HV *hv = newHV (); |
1019 | |
1115 | |
1020 | DEC_INC_DEPTH; |
1116 | DEC_INC_DEPTH; |
1021 | decode_ws (dec); |
1117 | decode_ws (dec); |
1022 | |
1118 | |
1023 | if (*dec->cur == '}') |
1119 | if (*dec->cur == '}') |
1024 | ++dec->cur; |
1120 | ++dec->cur; |
1025 | else |
1121 | else |
1026 | for (;;) |
1122 | for (;;) |
1027 | { |
1123 | { |
|
|
1124 | EXPECT_CH ('"'); |
|
|
1125 | |
|
|
1126 | // heuristic: assume that |
|
|
1127 | // a) decode_str + hv_store_ent are abysmally slow. |
|
|
1128 | // b) most hash keys are short, simple ascii text. |
|
|
1129 | // => try to "fast-match" such strings to avoid |
|
|
1130 | // the overhead of decode_str + hv_store_ent. |
|
|
1131 | { |
1028 | SV *key, *value; |
1132 | SV *value; |
|
|
1133 | char *p = dec->cur; |
|
|
1134 | char *e = p + 24; // only try up to 24 bytes |
1029 | |
1135 | |
1030 | decode_ws (dec); EXPECT_CH ('"'); |
1136 | for (;;) |
1031 | |
|
|
1032 | key = decode_str (dec); |
|
|
1033 | if (!key) |
|
|
1034 | goto fail; |
|
|
1035 | |
|
|
1036 | decode_ws (dec); EXPECT_CH (':'); |
|
|
1037 | |
|
|
1038 | value = decode_sv (dec); |
|
|
1039 | if (!value) |
|
|
1040 | { |
1137 | { |
|
|
1138 | // the >= 0x80 is true on most architectures |
|
|
1139 | if (p == e || *p < 0x20 || *p >= 0x80 || *p == '\\') |
|
|
1140 | { |
|
|
1141 | // slow path, back up and use decode_str |
|
|
1142 | SV *key = decode_str (dec); |
|
|
1143 | if (!key) |
|
|
1144 | goto fail; |
|
|
1145 | |
|
|
1146 | decode_ws (dec); EXPECT_CH (':'); |
|
|
1147 | |
|
|
1148 | decode_ws (dec); |
|
|
1149 | value = decode_sv (dec); |
|
|
1150 | if (!value) |
|
|
1151 | { |
|
|
1152 | SvREFCNT_dec (key); |
|
|
1153 | goto fail; |
|
|
1154 | } |
|
|
1155 | |
|
|
1156 | hv_store_ent (hv, key, value, 0); |
1041 | SvREFCNT_dec (key); |
1157 | SvREFCNT_dec (key); |
|
|
1158 | |
|
|
1159 | break; |
|
|
1160 | } |
|
|
1161 | else if (*p == '"') |
|
|
1162 | { |
|
|
1163 | // fast path, got a simple key |
|
|
1164 | char *key = dec->cur; |
|
|
1165 | int len = p - key; |
|
|
1166 | dec->cur = p + 1; |
|
|
1167 | |
|
|
1168 | decode_ws (dec); EXPECT_CH (':'); |
|
|
1169 | |
|
|
1170 | decode_ws (dec); |
|
|
1171 | value = decode_sv (dec); |
|
|
1172 | if (!value) |
1042 | goto fail; |
1173 | goto fail; |
|
|
1174 | |
|
|
1175 | hv_store (hv, key, len, value, 0); |
|
|
1176 | |
|
|
1177 | break; |
|
|
1178 | } |
|
|
1179 | |
|
|
1180 | ++p; |
1043 | } |
1181 | } |
1044 | |
1182 | } |
1045 | hv_store_ent (hv, key, value, 0); |
|
|
1046 | SvREFCNT_dec (key); |
|
|
1047 | |
1183 | |
1048 | decode_ws (dec); |
1184 | decode_ws (dec); |
1049 | |
1185 | |
1050 | if (*dec->cur == '}') |
1186 | if (*dec->cur == '}') |
1051 | { |
1187 | { |
… | |
… | |
1055 | |
1191 | |
1056 | if (*dec->cur != ',') |
1192 | if (*dec->cur != ',') |
1057 | ERR (", or } expected while parsing object/hash"); |
1193 | ERR (", or } expected while parsing object/hash"); |
1058 | |
1194 | |
1059 | ++dec->cur; |
1195 | ++dec->cur; |
|
|
1196 | |
|
|
1197 | decode_ws (dec); |
|
|
1198 | |
|
|
1199 | if (*dec->cur == '}' && dec->json.flags & F_RELAXED) |
|
|
1200 | { |
|
|
1201 | ++dec->cur; |
|
|
1202 | break; |
|
|
1203 | } |
1060 | } |
1204 | } |
1061 | |
1205 | |
1062 | DEC_DEC_DEPTH; |
1206 | DEC_DEC_DEPTH; |
1063 | return newRV_noinc ((SV *)hv); |
1207 | sv = newRV_noinc ((SV *)hv); |
|
|
1208 | |
|
|
1209 | // check filter callbacks |
|
|
1210 | if (dec->json.flags & F_HOOK) |
|
|
1211 | { |
|
|
1212 | if (dec->json.cb_sk_object && HvKEYS (hv) == 1) |
|
|
1213 | { |
|
|
1214 | HE *cb, *he; |
|
|
1215 | |
|
|
1216 | hv_iterinit (hv); |
|
|
1217 | he = hv_iternext (hv); |
|
|
1218 | hv_iterinit (hv); |
|
|
1219 | |
|
|
1220 | // the next line creates a mortal sv each time its called. |
|
|
1221 | // might want to optimise this for common cases. |
|
|
1222 | cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0); |
|
|
1223 | |
|
|
1224 | if (cb) |
|
|
1225 | { |
|
|
1226 | dSP; |
|
|
1227 | int count; |
|
|
1228 | |
|
|
1229 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
1230 | XPUSHs (HeVAL (he)); |
|
|
1231 | |
|
|
1232 | PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN; |
|
|
1233 | |
|
|
1234 | if (count == 1) |
|
|
1235 | { |
|
|
1236 | sv = newSVsv (POPs); |
|
|
1237 | FREETMPS; LEAVE; |
|
|
1238 | return sv; |
|
|
1239 | } |
|
|
1240 | |
|
|
1241 | FREETMPS; LEAVE; |
|
|
1242 | } |
|
|
1243 | } |
|
|
1244 | |
|
|
1245 | if (dec->json.cb_object) |
|
|
1246 | { |
|
|
1247 | dSP; |
|
|
1248 | int count; |
|
|
1249 | |
|
|
1250 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
1251 | XPUSHs (sv_2mortal (sv)); |
|
|
1252 | |
|
|
1253 | PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN; |
|
|
1254 | |
|
|
1255 | if (count == 1) |
|
|
1256 | { |
|
|
1257 | sv = newSVsv (POPs); |
|
|
1258 | FREETMPS; LEAVE; |
|
|
1259 | return sv; |
|
|
1260 | } |
|
|
1261 | |
|
|
1262 | SvREFCNT_inc (sv); |
|
|
1263 | FREETMPS; LEAVE; |
|
|
1264 | } |
|
|
1265 | } |
|
|
1266 | |
|
|
1267 | return sv; |
1064 | |
1268 | |
1065 | fail: |
1269 | fail: |
1066 | SvREFCNT_dec (hv); |
1270 | SvREFCNT_dec (hv); |
1067 | DEC_DEC_DEPTH; |
1271 | DEC_DEC_DEPTH; |
1068 | return 0; |
1272 | return 0; |
1069 | } |
1273 | } |
1070 | |
1274 | |
1071 | static SV * |
1275 | static SV * |
1072 | decode_sv (dec_t *dec) |
1276 | decode_sv (dec_t *dec) |
1073 | { |
1277 | { |
1074 | decode_ws (dec); |
|
|
1075 | |
|
|
1076 | // the beauty of JSON: you need exactly one character lookahead |
1278 | // the beauty of JSON: you need exactly one character lookahead |
1077 | // to parse anything. |
1279 | // to parse anything. |
1078 | switch (*dec->cur) |
1280 | switch (*dec->cur) |
1079 | { |
1281 | { |
1080 | case '"': ++dec->cur; return decode_str (dec); |
1282 | case '"': ++dec->cur; return decode_str (dec); |
… | |
… | |
1088 | |
1290 | |
1089 | case 't': |
1291 | case 't': |
1090 | if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4)) |
1292 | if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4)) |
1091 | { |
1293 | { |
1092 | dec->cur += 4; |
1294 | dec->cur += 4; |
|
|
1295 | #if JSON_SLOW |
|
|
1296 | json_true = get_sv ("JSON::XS::true", 1); SvREADONLY_on (json_true); |
|
|
1297 | #endif |
1093 | return SvREFCNT_inc (json_true); |
1298 | return SvREFCNT_inc (json_true); |
1094 | } |
1299 | } |
1095 | else |
1300 | else |
1096 | ERR ("'true' expected"); |
1301 | ERR ("'true' expected"); |
1097 | |
1302 | |
… | |
… | |
1099 | |
1304 | |
1100 | case 'f': |
1305 | case 'f': |
1101 | if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5)) |
1306 | if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5)) |
1102 | { |
1307 | { |
1103 | dec->cur += 5; |
1308 | dec->cur += 5; |
|
|
1309 | #if JSON_SLOW |
|
|
1310 | json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false); |
|
|
1311 | #endif |
1104 | return SvREFCNT_inc (json_false); |
1312 | return SvREFCNT_inc (json_false); |
1105 | } |
1313 | } |
1106 | else |
1314 | else |
1107 | ERR ("'false' expected"); |
1315 | ERR ("'false' expected"); |
1108 | |
1316 | |
… | |
… | |
1127 | fail: |
1335 | fail: |
1128 | return 0; |
1336 | return 0; |
1129 | } |
1337 | } |
1130 | |
1338 | |
1131 | static SV * |
1339 | static SV * |
1132 | decode_json (SV *string, U32 flags, UV *offset_return) |
1340 | decode_json (SV *string, JSON *json, UV *offset_return) |
1133 | { |
1341 | { |
1134 | dec_t dec; |
1342 | dec_t dec; |
1135 | UV offset; |
1343 | UV offset; |
1136 | SV *sv; |
1344 | SV *sv; |
1137 | |
1345 | |
1138 | SvGETMAGIC (string); |
1346 | SvGETMAGIC (string); |
1139 | SvUPGRADE (string, SVt_PV); |
1347 | SvUPGRADE (string, SVt_PV); |
1140 | |
1348 | |
1141 | if (flags & F_MAXSIZE && SvCUR (string) > DEC_SIZE (flags)) |
1349 | if (json->flags & F_MAXSIZE && SvCUR (string) > DEC_SIZE (json->flags)) |
1142 | croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu", |
1350 | croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu", |
1143 | (unsigned long)SvCUR (string), (unsigned long)DEC_SIZE (flags)); |
1351 | (unsigned long)SvCUR (string), (unsigned long)DEC_SIZE (json->flags)); |
1144 | |
1352 | |
1145 | if (flags & F_UTF8) |
1353 | if (json->flags & F_UTF8) |
1146 | sv_utf8_downgrade (string, 0); |
1354 | sv_utf8_downgrade (string, 0); |
1147 | else |
1355 | else |
1148 | sv_utf8_upgrade (string); |
1356 | sv_utf8_upgrade (string); |
1149 | |
1357 | |
1150 | SvGROW (string, SvCUR (string) + 1); // should basically be a NOP |
1358 | SvGROW (string, SvCUR (string) + 1); // should basically be a NOP |
1151 | |
1359 | |
1152 | dec.flags = flags; |
1360 | dec.json = *json; |
1153 | dec.cur = SvPVX (string); |
1361 | dec.cur = SvPVX (string); |
1154 | dec.end = SvEND (string); |
1362 | dec.end = SvEND (string); |
1155 | dec.err = 0; |
1363 | dec.err = 0; |
1156 | dec.depth = 0; |
1364 | dec.depth = 0; |
1157 | dec.maxdepth = DEC_DEPTH (dec.flags); |
1365 | dec.maxdepth = DEC_DEPTH (dec.json.flags); |
|
|
1366 | |
|
|
1367 | if (dec.json.cb_object || dec.json.cb_sk_object) |
|
|
1368 | dec.json.flags |= F_HOOK; |
1158 | |
1369 | |
1159 | *dec.end = 0; // this should basically be a nop, too, but make sure it's there |
1370 | *dec.end = 0; // this should basically be a nop, too, but make sure it's there |
|
|
1371 | |
|
|
1372 | decode_ws (&dec); |
1160 | sv = decode_sv (&dec); |
1373 | sv = decode_sv (&dec); |
1161 | |
1374 | |
1162 | if (!(offset_return || !sv)) |
1375 | if (!(offset_return || !sv)) |
1163 | { |
1376 | { |
1164 | // check for trailing garbage |
1377 | // check for trailing garbage |
… | |
… | |
1172 | } |
1385 | } |
1173 | } |
1386 | } |
1174 | |
1387 | |
1175 | if (offset_return || !sv) |
1388 | if (offset_return || !sv) |
1176 | { |
1389 | { |
1177 | offset = dec.flags & F_UTF8 |
1390 | offset = dec.json.flags & F_UTF8 |
1178 | ? dec.cur - SvPVX (string) |
1391 | ? dec.cur - SvPVX (string) |
1179 | : utf8_distance (dec.cur, SvPVX (string)); |
1392 | : utf8_distance (dec.cur, SvPVX (string)); |
1180 | |
1393 | |
1181 | if (offset_return) |
1394 | if (offset_return) |
1182 | *offset_return = offset; |
1395 | *offset_return = offset; |
… | |
… | |
1201 | dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)"); |
1414 | dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)"); |
1202 | } |
1415 | } |
1203 | |
1416 | |
1204 | sv = sv_2mortal (sv); |
1417 | sv = sv_2mortal (sv); |
1205 | |
1418 | |
1206 | if (!(dec.flags & F_ALLOW_NONREF) && !SvROK (sv)) |
1419 | if (!(dec.json.flags & F_ALLOW_NONREF) && !SvROK (sv)) |
1207 | croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)"); |
1420 | croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)"); |
1208 | |
1421 | |
1209 | return sv; |
1422 | return sv; |
1210 | } |
1423 | } |
1211 | |
1424 | |
… | |
… | |
1232 | json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false); |
1445 | json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false); |
1233 | } |
1446 | } |
1234 | |
1447 | |
1235 | PROTOTYPES: DISABLE |
1448 | PROTOTYPES: DISABLE |
1236 | |
1449 | |
1237 | SV *new (char *dummy) |
1450 | void CLONE (...) |
1238 | CODE: |
1451 | CODE: |
1239 | RETVAL = sv_bless (newRV_noinc (newSVuv (F_DEFAULT)), json_stash); |
1452 | json_stash = 0; |
1240 | OUTPUT: |
1453 | json_boolean_stash = 0; |
1241 | RETVAL |
|
|
1242 | |
1454 | |
|
|
1455 | void new (char *klass) |
|
|
1456 | PPCODE: |
|
|
1457 | { |
|
|
1458 | SV *pv = NEWSV (0, sizeof (JSON)); |
|
|
1459 | SvPOK_only (pv); |
|
|
1460 | Zero (SvPVX (pv), 1, JSON); |
|
|
1461 | ((JSON *)SvPVX (pv))->flags = F_DEFAULT; |
|
|
1462 | XPUSHs (sv_2mortal (sv_bless (newRV_noinc (pv), JSON_STASH))); |
|
|
1463 | } |
|
|
1464 | |
1243 | SV *ascii (SV *self, int enable = 1) |
1465 | void ascii (JSON *self, int enable = 1) |
1244 | ALIAS: |
1466 | ALIAS: |
1245 | ascii = F_ASCII |
1467 | ascii = F_ASCII |
1246 | latin1 = F_LATIN1 |
1468 | latin1 = F_LATIN1 |
1247 | utf8 = F_UTF8 |
1469 | utf8 = F_UTF8 |
1248 | indent = F_INDENT |
1470 | indent = F_INDENT |
… | |
… | |
1252 | pretty = F_PRETTY |
1474 | pretty = F_PRETTY |
1253 | allow_nonref = F_ALLOW_NONREF |
1475 | allow_nonref = F_ALLOW_NONREF |
1254 | shrink = F_SHRINK |
1476 | shrink = F_SHRINK |
1255 | allow_blessed = F_ALLOW_BLESSED |
1477 | allow_blessed = F_ALLOW_BLESSED |
1256 | convert_blessed = F_CONV_BLESSED |
1478 | convert_blessed = F_CONV_BLESSED |
|
|
1479 | relaxed = F_RELAXED |
|
|
1480 | PPCODE: |
|
|
1481 | { |
|
|
1482 | if (enable) |
|
|
1483 | self->flags |= ix; |
|
|
1484 | else |
|
|
1485 | self->flags &= ~ix; |
|
|
1486 | |
|
|
1487 | XPUSHs (ST (0)); |
|
|
1488 | } |
|
|
1489 | |
|
|
1490 | void get_ascii (JSON *self) |
|
|
1491 | ALIAS: |
|
|
1492 | get_ascii = F_ASCII |
|
|
1493 | get_latin1 = F_LATIN1 |
|
|
1494 | get_utf8 = F_UTF8 |
|
|
1495 | get_indent = F_INDENT |
|
|
1496 | get_canonical = F_CANONICAL |
|
|
1497 | get_space_before = F_SPACE_BEFORE |
|
|
1498 | get_space_after = F_SPACE_AFTER |
|
|
1499 | get_pretty = F_PRETTY |
|
|
1500 | get_allow_nonref = F_ALLOW_NONREF |
|
|
1501 | get_shrink = F_SHRINK |
|
|
1502 | get_allow_blessed = F_ALLOW_BLESSED |
|
|
1503 | get_convert_blessed = F_CONV_BLESSED |
|
|
1504 | get_relaxed = F_RELAXED |
|
|
1505 | PPCODE: |
|
|
1506 | XPUSHs (boolSV (self->flags & ix)); |
|
|
1507 | |
|
|
1508 | void max_depth (JSON *self, UV max_depth = 0x80000000UL) |
|
|
1509 | PPCODE: |
|
|
1510 | { |
|
|
1511 | UV log2 = 0; |
|
|
1512 | |
|
|
1513 | if (max_depth > 0x80000000UL) max_depth = 0x80000000UL; |
|
|
1514 | |
|
|
1515 | while ((1UL << log2) < max_depth) |
|
|
1516 | ++log2; |
|
|
1517 | |
|
|
1518 | self->flags = self->flags & ~F_MAXDEPTH | (log2 << S_MAXDEPTH); |
|
|
1519 | |
|
|
1520 | XPUSHs (ST (0)); |
|
|
1521 | } |
|
|
1522 | |
|
|
1523 | U32 get_max_depth (JSON *self) |
1257 | CODE: |
1524 | CODE: |
1258 | { |
1525 | RETVAL = DEC_DEPTH (self->flags); |
1259 | UV *uv = SvJSON (self); |
|
|
1260 | if (enable) |
|
|
1261 | *uv |= ix; |
|
|
1262 | else |
|
|
1263 | *uv &= ~ix; |
|
|
1264 | |
|
|
1265 | RETVAL = newSVsv (self); |
|
|
1266 | } |
|
|
1267 | OUTPUT: |
1526 | OUTPUT: |
1268 | RETVAL |
1527 | RETVAL |
1269 | |
1528 | |
1270 | SV *max_depth (SV *self, UV max_depth = 0x80000000UL) |
1529 | void max_size (JSON *self, UV max_size = 0) |
|
|
1530 | PPCODE: |
|
|
1531 | { |
|
|
1532 | UV log2 = 0; |
|
|
1533 | |
|
|
1534 | if (max_size > 0x80000000UL) max_size = 0x80000000UL; |
|
|
1535 | if (max_size == 1) max_size = 2; |
|
|
1536 | |
|
|
1537 | while ((1UL << log2) < max_size) |
|
|
1538 | ++log2; |
|
|
1539 | |
|
|
1540 | self->flags = self->flags & ~F_MAXSIZE | (log2 << S_MAXSIZE); |
|
|
1541 | |
|
|
1542 | XPUSHs (ST (0)); |
|
|
1543 | } |
|
|
1544 | |
|
|
1545 | int get_max_size (JSON *self) |
1271 | CODE: |
1546 | CODE: |
1272 | { |
1547 | RETVAL = DEC_SIZE (self->flags); |
1273 | UV *uv = SvJSON (self); |
|
|
1274 | UV log2 = 0; |
|
|
1275 | |
|
|
1276 | if (max_depth > 0x80000000UL) max_depth = 0x80000000UL; |
|
|
1277 | |
|
|
1278 | while ((1UL << log2) < max_depth) |
|
|
1279 | ++log2; |
|
|
1280 | |
|
|
1281 | *uv = *uv & ~F_MAXDEPTH | (log2 << S_MAXDEPTH); |
|
|
1282 | |
|
|
1283 | RETVAL = newSVsv (self); |
|
|
1284 | } |
|
|
1285 | OUTPUT: |
1548 | OUTPUT: |
1286 | RETVAL |
1549 | RETVAL |
1287 | |
1550 | |
1288 | SV *max_size (SV *self, UV max_size = 0) |
1551 | void filter_json_object (JSON *self, SV *cb = &PL_sv_undef) |
1289 | CODE: |
|
|
1290 | { |
|
|
1291 | UV *uv = SvJSON (self); |
|
|
1292 | UV log2 = 0; |
|
|
1293 | |
|
|
1294 | if (max_size > 0x80000000UL) max_size = 0x80000000UL; |
|
|
1295 | if (max_size == 1) max_size = 2; |
|
|
1296 | |
|
|
1297 | while ((1UL << log2) < max_size) |
|
|
1298 | ++log2; |
|
|
1299 | |
|
|
1300 | *uv = *uv & ~F_MAXSIZE | (log2 << S_MAXSIZE); |
|
|
1301 | |
|
|
1302 | RETVAL = newSVsv (self); |
|
|
1303 | } |
|
|
1304 | OUTPUT: |
|
|
1305 | RETVAL |
|
|
1306 | |
|
|
1307 | void encode (SV *self, SV *scalar) |
|
|
1308 | PPCODE: |
1552 | PPCODE: |
1309 | XPUSHs (encode_json (scalar, *SvJSON (self))); |
1553 | { |
|
|
1554 | SvREFCNT_dec (self->cb_object); |
|
|
1555 | self->cb_object = SvOK (cb) ? newSVsv (cb) : 0; |
1310 | |
1556 | |
1311 | void decode (SV *self, SV *jsonstr) |
1557 | XPUSHs (ST (0)); |
|
|
1558 | } |
|
|
1559 | |
|
|
1560 | void filter_json_single_key_object (JSON *self, SV *key, SV *cb = &PL_sv_undef) |
1312 | PPCODE: |
1561 | PPCODE: |
|
|
1562 | { |
|
|
1563 | if (!self->cb_sk_object) |
|
|
1564 | self->cb_sk_object = newHV (); |
|
|
1565 | |
|
|
1566 | if (SvOK (cb)) |
|
|
1567 | hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0); |
|
|
1568 | else |
|
|
1569 | { |
|
|
1570 | hv_delete_ent (self->cb_sk_object, key, G_DISCARD, 0); |
|
|
1571 | |
|
|
1572 | if (!HvKEYS (self->cb_sk_object)) |
|
|
1573 | { |
|
|
1574 | SvREFCNT_dec (self->cb_sk_object); |
|
|
1575 | self->cb_sk_object = 0; |
|
|
1576 | } |
|
|
1577 | } |
|
|
1578 | |
|
|
1579 | XPUSHs (ST (0)); |
|
|
1580 | } |
|
|
1581 | |
|
|
1582 | void encode (JSON *self, SV *scalar) |
|
|
1583 | PPCODE: |
|
|
1584 | XPUSHs (encode_json (scalar, self)); |
|
|
1585 | |
|
|
1586 | void decode (JSON *self, SV *jsonstr) |
|
|
1587 | PPCODE: |
1313 | XPUSHs (decode_json (jsonstr, *SvJSON (self), 0)); |
1588 | XPUSHs (decode_json (jsonstr, self, 0)); |
1314 | |
1589 | |
1315 | void decode_prefix (SV *self, SV *jsonstr) |
1590 | void decode_prefix (JSON *self, SV *jsonstr) |
1316 | PPCODE: |
1591 | PPCODE: |
1317 | { |
1592 | { |
1318 | UV offset; |
1593 | UV offset; |
1319 | EXTEND (SP, 2); |
1594 | EXTEND (SP, 2); |
1320 | PUSHs (decode_json (jsonstr, *SvJSON (self), &offset)); |
1595 | PUSHs (decode_json (jsonstr, self, &offset)); |
1321 | PUSHs (sv_2mortal (newSVuv (offset))); |
1596 | PUSHs (sv_2mortal (newSVuv (offset))); |
1322 | } |
1597 | } |
1323 | |
1598 | |
|
|
1599 | void DESTROY (JSON *self) |
|
|
1600 | CODE: |
|
|
1601 | SvREFCNT_dec (self->cb_sk_object); |
|
|
1602 | SvREFCNT_dec (self->cb_object); |
|
|
1603 | |
1324 | PROTOTYPES: ENABLE |
1604 | PROTOTYPES: ENABLE |
1325 | |
1605 | |
1326 | void to_json (SV *scalar) |
1606 | void to_json (SV *scalar) |
1327 | ALIAS: |
|
|
1328 | objToJson = 0 |
|
|
1329 | PPCODE: |
1607 | PPCODE: |
|
|
1608 | { |
|
|
1609 | JSON json = { F_DEFAULT | F_UTF8 }; |
1330 | XPUSHs (encode_json (scalar, F_DEFAULT | F_UTF8)); |
1610 | XPUSHs (encode_json (scalar, &json)); |
|
|
1611 | } |
1331 | |
1612 | |
1332 | void from_json (SV *jsonstr) |
1613 | void from_json (SV *jsonstr) |
1333 | ALIAS: |
|
|
1334 | jsonToObj = 0 |
|
|
1335 | PPCODE: |
1614 | PPCODE: |
|
|
1615 | { |
|
|
1616 | JSON json = { F_DEFAULT | F_UTF8 }; |
1336 | XPUSHs (decode_json (jsonstr, F_DEFAULT | F_UTF8, 0)); |
1617 | XPUSHs (decode_json (jsonstr, &json, 0)); |
|
|
1618 | } |
1337 | |
1619 | |