… | |
… | |
31 | #define F_ALLOW_NONREF 0x00000100UL |
31 | #define F_ALLOW_NONREF 0x00000100UL |
32 | #define F_SHRINK 0x00000200UL |
32 | #define F_SHRINK 0x00000200UL |
33 | #define F_ALLOW_BLESSED 0x00000400UL |
33 | #define F_ALLOW_BLESSED 0x00000400UL |
34 | #define F_CONV_BLESSED 0x00000800UL |
34 | #define F_CONV_BLESSED 0x00000800UL |
35 | #define F_RELAXED 0x00001000UL |
35 | #define F_RELAXED 0x00001000UL |
36 | |
36 | #define F_ALLOW_UNKNOWN 0x00002000UL |
37 | #define F_MAXDEPTH 0xf8000000UL |
|
|
38 | #define S_MAXDEPTH 27 |
|
|
39 | #define F_MAXSIZE 0x01f00000UL |
|
|
40 | #define S_MAXSIZE 20 |
|
|
41 | #define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing |
37 | #define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing |
42 | |
38 | |
43 | #define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH)) |
|
|
44 | #define DEC_SIZE(flags) (1UL << ((flags & F_MAXSIZE ) >> S_MAXSIZE )) |
|
|
45 | |
|
|
46 | #define F_PRETTY F_INDENT | F_SPACE_BEFORE | F_SPACE_AFTER |
39 | #define F_PRETTY F_INDENT | F_SPACE_BEFORE | F_SPACE_AFTER |
47 | #define F_DEFAULT (9UL << S_MAXDEPTH) |
|
|
48 | |
40 | |
49 | #define INIT_SIZE 32 // initial scalar size to be allocated |
41 | #define INIT_SIZE 32 // initial scalar size to be allocated |
50 | #define INDENT_STEP 3 // spaces per indentation level |
42 | #define INDENT_STEP 3 // spaces per indentation level |
51 | |
43 | |
52 | #define SHORT_STRING_LEN 16384 // special-case strings of up to this size |
44 | #define SHORT_STRING_LEN 16384 // special-case strings of up to this size |
… | |
… | |
67 | |
59 | |
68 | #define IN_RANGE_INC(type,val,beg,end) \ |
60 | #define IN_RANGE_INC(type,val,beg,end) \ |
69 | ((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \ |
61 | ((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \ |
70 | <= (unsigned type)((unsigned type)(end) - (unsigned type)(beg))) |
62 | <= (unsigned type)((unsigned type)(end) - (unsigned type)(beg))) |
71 | |
63 | |
|
|
64 | #define ERR_NESTING_EXCEEDED "json text or perl structure exceeds maximum nesting level (max_depth set too low?)" |
|
|
65 | |
72 | #ifdef USE_ITHREADS |
66 | #ifdef USE_ITHREADS |
73 | # define JSON_SLOW 1 |
67 | # define JSON_SLOW 1 |
74 | # define JSON_STASH (json_stash ? json_stash : gv_stashpv ("JSON::XS", 1)) |
68 | # define JSON_STASH (json_stash ? json_stash : gv_stashpv ("JSON::XS", 1)) |
75 | #else |
69 | #else |
76 | # define JSON_SLOW 0 |
70 | # define JSON_SLOW 0 |
… | |
… | |
78 | #endif |
72 | #endif |
79 | |
73 | |
80 | static HV *json_stash, *json_boolean_stash; // JSON::XS:: |
74 | static HV *json_stash, *json_boolean_stash; // JSON::XS:: |
81 | static SV *json_true, *json_false; |
75 | static SV *json_true, *json_false; |
82 | |
76 | |
|
|
77 | enum { |
|
|
78 | INCR_M_WS = 0, // initial whitespace skipping, must be 0 |
|
|
79 | INCR_M_STR, // inside string |
|
|
80 | INCR_M_BS, // inside backslash |
|
|
81 | INCR_M_JSON // outside anything, count nesting |
|
|
82 | }; |
|
|
83 | |
|
|
84 | #define INCR_DONE(json) ((json)->incr_nest <= 0 && (json)->incr_mode == INCR_M_JSON) |
|
|
85 | |
83 | typedef struct { |
86 | typedef struct { |
84 | U32 flags; |
87 | U32 flags; |
|
|
88 | U32 max_depth; |
|
|
89 | STRLEN max_size; |
|
|
90 | |
85 | SV *cb_object; |
91 | SV *cb_object; |
86 | HV *cb_sk_object; |
92 | HV *cb_sk_object; |
|
|
93 | |
|
|
94 | // for the incremental parser |
|
|
95 | SV *incr_text; // the source text so far |
|
|
96 | STRLEN incr_pos; // the current offset into the text |
|
|
97 | int incr_nest; // {[]}-nesting level |
|
|
98 | unsigned char incr_mode; |
87 | } JSON; |
99 | } JSON; |
|
|
100 | |
|
|
101 | INLINE void |
|
|
102 | json_init (JSON *json) |
|
|
103 | { |
|
|
104 | Zero (json, 1, JSON); |
|
|
105 | json->max_depth = 512; |
|
|
106 | } |
88 | |
107 | |
89 | ///////////////////////////////////////////////////////////////////////////// |
108 | ///////////////////////////////////////////////////////////////////////////// |
90 | // utility functions |
109 | // utility functions |
91 | |
110 | |
|
|
111 | INLINE SV * |
|
|
112 | get_bool (const char *name) |
|
|
113 | { |
|
|
114 | SV *sv = get_sv (name, 1); |
|
|
115 | |
|
|
116 | SvREADONLY_on (sv); |
|
|
117 | SvREADONLY_on (SvRV (sv)); |
|
|
118 | |
|
|
119 | return sv; |
|
|
120 | } |
|
|
121 | |
92 | INLINE void |
122 | INLINE void |
93 | shrink (SV *sv) |
123 | shrink (SV *sv) |
94 | { |
124 | { |
95 | sv_utf8_downgrade (sv, 1); |
125 | sv_utf8_downgrade (sv, 1); |
|
|
126 | |
96 | if (SvLEN (sv) > SvCUR (sv) + 1) |
127 | if (SvLEN (sv) > SvCUR (sv) + 1) |
97 | { |
128 | { |
98 | #ifdef SvPV_shrink_to_cur |
129 | #ifdef SvPV_shrink_to_cur |
99 | SvPV_shrink_to_cur (sv); |
130 | SvPV_shrink_to_cur (sv); |
100 | #elif defined (SvPV_renew) |
131 | #elif defined (SvPV_renew) |
… | |
… | |
155 | char *cur; // SvPVX (sv) + current output position |
186 | char *cur; // SvPVX (sv) + current output position |
156 | char *end; // SvEND (sv) |
187 | char *end; // SvEND (sv) |
157 | SV *sv; // result scalar |
188 | SV *sv; // result scalar |
158 | JSON json; |
189 | JSON json; |
159 | U32 indent; // indentation level |
190 | U32 indent; // indentation level |
160 | U32 maxdepth; // max. indentation/recursion level |
|
|
161 | UV limit; // escape character values >= this value when encoding |
191 | UV limit; // escape character values >= this value when encoding |
162 | } enc_t; |
192 | } enc_t; |
163 | |
193 | |
164 | INLINE void |
194 | INLINE void |
165 | need (enc_t *enc, STRLEN len) |
195 | need (enc_t *enc, STRLEN len) |
… | |
… | |
250 | (int)((uch - 0x10000) % 0x400 + 0xDC00)); |
280 | (int)((uch - 0x10000) % 0x400 + 0xDC00)); |
251 | enc->cur += 12; |
281 | enc->cur += 12; |
252 | } |
282 | } |
253 | else |
283 | else |
254 | { |
284 | { |
255 | static char hexdigit [16] = "0123456789abcdef"; |
|
|
256 | need (enc, len += 5); |
285 | need (enc, len += 5); |
257 | *enc->cur++ = '\\'; |
286 | *enc->cur++ = '\\'; |
258 | *enc->cur++ = 'u'; |
287 | *enc->cur++ = 'u'; |
259 | *enc->cur++ = hexdigit [ uch >> 12 ]; |
288 | *enc->cur++ = PL_hexdigit [ uch >> 12 ]; |
260 | *enc->cur++ = hexdigit [(uch >> 8) & 15]; |
289 | *enc->cur++ = PL_hexdigit [(uch >> 8) & 15]; |
261 | *enc->cur++ = hexdigit [(uch >> 4) & 15]; |
290 | *enc->cur++ = PL_hexdigit [(uch >> 4) & 15]; |
262 | *enc->cur++ = hexdigit [(uch >> 0) & 15]; |
291 | *enc->cur++ = PL_hexdigit [(uch >> 0) & 15]; |
263 | } |
292 | } |
264 | |
293 | |
265 | str += clen; |
294 | str += clen; |
266 | } |
295 | } |
267 | else if (enc->json.flags & F_LATIN1) |
296 | else if (enc->json.flags & F_LATIN1) |
… | |
… | |
338 | static void |
367 | static void |
339 | encode_av (enc_t *enc, AV *av) |
368 | encode_av (enc_t *enc, AV *av) |
340 | { |
369 | { |
341 | int i, len = av_len (av); |
370 | int i, len = av_len (av); |
342 | |
371 | |
343 | if (enc->indent >= enc->maxdepth) |
372 | if (enc->indent >= enc->json.max_depth) |
344 | croak ("data structure too deep (hit recursion limit)"); |
373 | croak (ERR_NESTING_EXCEEDED); |
345 | |
374 | |
346 | encode_ch (enc, '['); |
375 | encode_ch (enc, '['); |
347 | |
376 | |
348 | if (len >= 0) |
377 | if (len >= 0) |
349 | { |
378 | { |
… | |
… | |
423 | |
452 | |
424 | static void |
453 | static void |
425 | encode_hv (enc_t *enc, HV *hv) |
454 | encode_hv (enc_t *enc, HV *hv) |
426 | { |
455 | { |
427 | HE *he; |
456 | HE *he; |
428 | int count; |
|
|
429 | |
457 | |
430 | if (enc->indent >= enc->maxdepth) |
458 | if (enc->indent >= enc->json.max_depth) |
431 | croak ("data structure too deep (hit recursion limit)"); |
459 | croak (ERR_NESTING_EXCEEDED); |
432 | |
460 | |
433 | encode_ch (enc, '{'); |
461 | encode_ch (enc, '{'); |
434 | |
462 | |
435 | // for canonical output we have to sort by keys first |
463 | // for canonical output we have to sort by keys first |
436 | // actually, this is mostly due to the stupid so-called |
464 | // actually, this is mostly due to the stupid so-called |
… | |
… | |
617 | |
645 | |
618 | if (len == 1 && *pv == '1') |
646 | if (len == 1 && *pv == '1') |
619 | encode_str (enc, "true", 4, 0); |
647 | encode_str (enc, "true", 4, 0); |
620 | else if (len == 1 && *pv == '0') |
648 | else if (len == 1 && *pv == '0') |
621 | encode_str (enc, "false", 5, 0); |
649 | encode_str (enc, "false", 5, 0); |
|
|
650 | else if (enc->json.flags & F_ALLOW_UNKNOWN) |
|
|
651 | encode_str (enc, "null", 4, 0); |
622 | else |
652 | else |
623 | croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1", |
653 | croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1", |
624 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
654 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
625 | } |
655 | } |
|
|
656 | else if (enc->json.flags & F_ALLOW_UNKNOWN) |
|
|
657 | encode_str (enc, "null", 4, 0); |
626 | else |
658 | else |
627 | croak ("encountered %s, but JSON can only represent references to arrays or hashes", |
659 | croak ("encountered %s, but JSON can only represent references to arrays or hashes", |
628 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
660 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
629 | } |
661 | } |
630 | |
662 | |
… | |
… | |
692 | : snprintf (enc->cur, IVUV_MAXCHARS, "%"IVdf, (IV)SvIVX (sv)); |
724 | : snprintf (enc->cur, IVUV_MAXCHARS, "%"IVdf, (IV)SvIVX (sv)); |
693 | } |
725 | } |
694 | } |
726 | } |
695 | else if (SvROK (sv)) |
727 | else if (SvROK (sv)) |
696 | encode_rv (enc, SvRV (sv)); |
728 | encode_rv (enc, SvRV (sv)); |
697 | else if (!SvOK (sv)) |
729 | else if (!SvOK (sv) || enc->json.flags & F_ALLOW_UNKNOWN) |
698 | encode_str (enc, "null", 4, 0); |
730 | encode_str (enc, "null", 4, 0); |
699 | else |
731 | else |
700 | croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this", |
732 | croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this", |
701 | SvPV_nolen (sv), SvFLAGS (sv)); |
733 | SvPV_nolen (sv), SvFLAGS (sv)); |
702 | } |
734 | } |
… | |
… | |
712 | enc.json = *json; |
744 | enc.json = *json; |
713 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
745 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
714 | enc.cur = SvPVX (enc.sv); |
746 | enc.cur = SvPVX (enc.sv); |
715 | enc.end = SvEND (enc.sv); |
747 | enc.end = SvEND (enc.sv); |
716 | enc.indent = 0; |
748 | enc.indent = 0; |
717 | enc.maxdepth = DEC_DEPTH (enc.json.flags); |
|
|
718 | enc.limit = enc.json.flags & F_ASCII ? 0x000080UL |
749 | enc.limit = enc.json.flags & F_ASCII ? 0x000080UL |
719 | : enc.json.flags & F_LATIN1 ? 0x000100UL |
750 | : enc.json.flags & F_LATIN1 ? 0x000100UL |
720 | : 0x110000UL; |
751 | : 0x110000UL; |
721 | |
752 | |
722 | SvPOK_only (enc.sv); |
753 | SvPOK_only (enc.sv); |
… | |
… | |
789 | if (*dec->cur != ch) \ |
820 | if (*dec->cur != ch) \ |
790 | ERR (# ch " expected"); \ |
821 | ERR (# ch " expected"); \ |
791 | ++dec->cur; \ |
822 | ++dec->cur; \ |
792 | SE |
823 | SE |
793 | |
824 | |
794 | #define DEC_INC_DEPTH if (++dec->depth > dec->maxdepth) ERR ("json datastructure exceeds maximum nesting level (set a higher max_depth)") |
825 | #define DEC_INC_DEPTH if (++dec->depth > dec->json.max_depth) ERR (ERR_NESTING_EXCEEDED) |
795 | #define DEC_DEC_DEPTH --dec->depth |
826 | #define DEC_DEC_DEPTH --dec->depth |
796 | |
827 | |
797 | static SV *decode_sv (dec_t *dec); |
828 | static SV *decode_sv (dec_t *dec); |
798 | |
829 | |
799 | static signed char decode_hexdigit[256]; |
830 | static signed char decode_hexdigit[256]; |
… | |
… | |
1171 | char *p = dec->cur; |
1202 | char *p = dec->cur; |
1172 | char *e = p + 24; // only try up to 24 bytes |
1203 | char *e = p + 24; // only try up to 24 bytes |
1173 | |
1204 | |
1174 | for (;;) |
1205 | for (;;) |
1175 | { |
1206 | { |
1176 | // the >= 0x80 is true on most architectures |
1207 | // the >= 0x80 is false on most architectures |
1177 | if (p == e || *p < 0x20 || *p >= 0x80 || *p == '\\') |
1208 | if (p == e || *p < 0x20 || *p >= 0x80 || *p == '\\') |
1178 | { |
1209 | { |
1179 | // slow path, back up and use decode_str |
1210 | // slow path, back up and use decode_str |
1180 | SV *key = decode_str (dec); |
1211 | SV *key = decode_str (dec); |
1181 | if (!key) |
1212 | if (!key) |
… | |
… | |
1329 | case 't': |
1360 | case 't': |
1330 | if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4)) |
1361 | if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4)) |
1331 | { |
1362 | { |
1332 | dec->cur += 4; |
1363 | dec->cur += 4; |
1333 | #if JSON_SLOW |
1364 | #if JSON_SLOW |
1334 | json_true = get_sv ("JSON::XS::true", 1); SvREADONLY_on (json_true); |
1365 | json_true = get_bool ("JSON::XS::true"); |
1335 | #endif |
1366 | #endif |
1336 | return SvREFCNT_inc (json_true); |
1367 | return newSVsv (json_true); |
1337 | } |
1368 | } |
1338 | else |
1369 | else |
1339 | ERR ("'true' expected"); |
1370 | ERR ("'true' expected"); |
1340 | |
1371 | |
1341 | break; |
1372 | break; |
… | |
… | |
1343 | case 'f': |
1374 | case 'f': |
1344 | if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5)) |
1375 | if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5)) |
1345 | { |
1376 | { |
1346 | dec->cur += 5; |
1377 | dec->cur += 5; |
1347 | #if JSON_SLOW |
1378 | #if JSON_SLOW |
1348 | json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false); |
1379 | json_false = get_bool ("JSON::XS::false"); |
1349 | #endif |
1380 | #endif |
1350 | return SvREFCNT_inc (json_false); |
1381 | return newSVsv (json_false); |
1351 | } |
1382 | } |
1352 | else |
1383 | else |
1353 | ERR ("'false' expected"); |
1384 | ERR ("'false' expected"); |
1354 | |
1385 | |
1355 | break; |
1386 | break; |
… | |
… | |
1373 | fail: |
1404 | fail: |
1374 | return 0; |
1405 | return 0; |
1375 | } |
1406 | } |
1376 | |
1407 | |
1377 | static SV * |
1408 | static SV * |
1378 | decode_json (SV *string, JSON *json, UV *offset_return) |
1409 | decode_json (SV *string, JSON *json, STRLEN *offset_return) |
1379 | { |
1410 | { |
1380 | dec_t dec; |
1411 | dec_t dec; |
1381 | UV offset; |
1412 | STRLEN offset; |
1382 | SV *sv; |
1413 | SV *sv; |
1383 | |
1414 | |
1384 | SvGETMAGIC (string); |
1415 | SvGETMAGIC (string); |
1385 | SvUPGRADE (string, SVt_PV); |
1416 | SvUPGRADE (string, SVt_PV); |
1386 | |
1417 | |
1387 | if (json->flags & F_MAXSIZE && SvCUR (string) > DEC_SIZE (json->flags)) |
1418 | /* work around a bug in perl 5.10, which causes SvCUR to fail an |
|
|
1419 | * assertion with -DDEBUGGING, although SvCUR is documented to |
|
|
1420 | * return the xpv_cur field which certainly exists after upgrading. |
|
|
1421 | * according to nicholas clark, calling SvPOK fixes this. |
|
|
1422 | * But it doesn't fix it, so try another workaround, call SvPV_nolen |
|
|
1423 | * and hope for the best. |
|
|
1424 | * Damnit, SvPV_nolen still trips over yet another assertion. This |
|
|
1425 | * assertion business is seriously broken, try yet another workaround |
|
|
1426 | * for the broken -DDEBUGGING. |
|
|
1427 | */ |
|
|
1428 | #ifdef DEBUGGING |
|
|
1429 | offset = SvOK (string) ? sv_len (string) : 0; |
|
|
1430 | #else |
|
|
1431 | offset = SvCUR (string); |
|
|
1432 | #endif |
|
|
1433 | |
|
|
1434 | if (offset > json->max_size && json->max_size) |
1388 | croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu", |
1435 | croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu", |
1389 | (unsigned long)SvCUR (string), (unsigned long)DEC_SIZE (json->flags)); |
1436 | (unsigned long)SvCUR (string), (unsigned long)json->max_size); |
1390 | |
1437 | |
1391 | if (json->flags & F_UTF8) |
1438 | if (json->flags & F_UTF8) |
1392 | sv_utf8_downgrade (string, 0); |
1439 | sv_utf8_downgrade (string, 0); |
1393 | else |
1440 | else |
1394 | sv_utf8_upgrade (string); |
1441 | sv_utf8_upgrade (string); |
1395 | |
1442 | |
1396 | SvGROW (string, SvCUR (string) + 1); // should basically be a NOP |
1443 | SvGROW (string, SvCUR (string) + 1); // should basically be a NOP |
1397 | |
1444 | |
1398 | dec.json = *json; |
1445 | dec.json = *json; |
1399 | dec.cur = SvPVX (string); |
1446 | dec.cur = SvPVX (string); |
1400 | dec.end = SvEND (string); |
1447 | dec.end = SvEND (string); |
1401 | dec.err = 0; |
1448 | dec.err = 0; |
1402 | dec.depth = 0; |
1449 | dec.depth = 0; |
1403 | dec.maxdepth = DEC_DEPTH (dec.json.flags); |
|
|
1404 | |
1450 | |
1405 | if (dec.json.cb_object || dec.json.cb_sk_object) |
1451 | if (dec.json.cb_object || dec.json.cb_sk_object) |
1406 | dec.json.flags |= F_HOOK; |
1452 | dec.json.flags |= F_HOOK; |
1407 | |
1453 | |
1408 | *dec.end = 0; // this should basically be a nop, too, but make sure it's there |
1454 | *dec.end = 0; // this should basically be a nop, too, but make sure it's there |
… | |
… | |
1459 | |
1505 | |
1460 | return sv; |
1506 | return sv; |
1461 | } |
1507 | } |
1462 | |
1508 | |
1463 | ///////////////////////////////////////////////////////////////////////////// |
1509 | ///////////////////////////////////////////////////////////////////////////// |
|
|
1510 | // incremental parser |
|
|
1511 | |
|
|
1512 | static void |
|
|
1513 | incr_parse (JSON *self) |
|
|
1514 | { |
|
|
1515 | const char *p = SvPVX (self->incr_text) + self->incr_pos; |
|
|
1516 | |
|
|
1517 | for (;;) |
|
|
1518 | { |
|
|
1519 | //printf ("loop pod %d *p<%c><%s>, mode %d nest %d\n", p - SvPVX (self->incr_text), *p, p, self->incr_mode, self->incr_nest);//D |
|
|
1520 | switch (self->incr_mode) |
|
|
1521 | { |
|
|
1522 | // only used for intiial whitespace skipping |
|
|
1523 | case INCR_M_WS: |
|
|
1524 | for (;;) |
|
|
1525 | { |
|
|
1526 | if (*p > 0x20) |
|
|
1527 | { |
|
|
1528 | self->incr_mode = INCR_M_JSON; |
|
|
1529 | goto incr_m_json; |
|
|
1530 | } |
|
|
1531 | else if (!*p) |
|
|
1532 | goto interrupt; |
|
|
1533 | |
|
|
1534 | ++p; |
|
|
1535 | } |
|
|
1536 | |
|
|
1537 | // skip a single char inside a string (for \\-processing) |
|
|
1538 | case INCR_M_BS: |
|
|
1539 | if (!*p) |
|
|
1540 | goto interrupt; |
|
|
1541 | |
|
|
1542 | ++p; |
|
|
1543 | self->incr_mode = INCR_M_STR; |
|
|
1544 | goto incr_m_str; |
|
|
1545 | |
|
|
1546 | // inside a string |
|
|
1547 | case INCR_M_STR: |
|
|
1548 | incr_m_str: |
|
|
1549 | for (;;) |
|
|
1550 | { |
|
|
1551 | if (*p == '"') |
|
|
1552 | { |
|
|
1553 | ++p; |
|
|
1554 | self->incr_mode = INCR_M_JSON; |
|
|
1555 | |
|
|
1556 | if (!self->incr_nest) |
|
|
1557 | goto interrupt; |
|
|
1558 | |
|
|
1559 | goto incr_m_json; |
|
|
1560 | } |
|
|
1561 | else if (*p == '\\') |
|
|
1562 | { |
|
|
1563 | ++p; // "virtually" consumes character after \ |
|
|
1564 | |
|
|
1565 | if (!*p) // if at end of string we have to switch modes |
|
|
1566 | { |
|
|
1567 | self->incr_mode = INCR_M_BS; |
|
|
1568 | goto interrupt; |
|
|
1569 | } |
|
|
1570 | } |
|
|
1571 | else if (!*p) |
|
|
1572 | goto interrupt; |
|
|
1573 | |
|
|
1574 | ++p; |
|
|
1575 | } |
|
|
1576 | |
|
|
1577 | // after initial ws, outside string |
|
|
1578 | case INCR_M_JSON: |
|
|
1579 | incr_m_json: |
|
|
1580 | for (;;) |
|
|
1581 | { |
|
|
1582 | switch (*p++) |
|
|
1583 | { |
|
|
1584 | case 0: |
|
|
1585 | --p; |
|
|
1586 | goto interrupt; |
|
|
1587 | |
|
|
1588 | case 0x09: |
|
|
1589 | case 0x0a: |
|
|
1590 | case 0x0d: |
|
|
1591 | case 0x20: |
|
|
1592 | if (!self->incr_nest) |
|
|
1593 | { |
|
|
1594 | --p; // do not eat the whitespace, let the next round do it |
|
|
1595 | goto interrupt; |
|
|
1596 | } |
|
|
1597 | break; |
|
|
1598 | |
|
|
1599 | case '"': |
|
|
1600 | self->incr_mode = INCR_M_STR; |
|
|
1601 | goto incr_m_str; |
|
|
1602 | |
|
|
1603 | case '[': |
|
|
1604 | case '{': |
|
|
1605 | if (++self->incr_nest > self->max_depth) |
|
|
1606 | croak (ERR_NESTING_EXCEEDED); |
|
|
1607 | break; |
|
|
1608 | |
|
|
1609 | case ']': |
|
|
1610 | case '}': |
|
|
1611 | if (--self->incr_nest <= 0) |
|
|
1612 | goto interrupt; |
|
|
1613 | } |
|
|
1614 | } |
|
|
1615 | } |
|
|
1616 | |
|
|
1617 | modechange: |
|
|
1618 | ; |
|
|
1619 | } |
|
|
1620 | |
|
|
1621 | interrupt: |
|
|
1622 | self->incr_pos = p - SvPVX (self->incr_text); |
|
|
1623 | //printf ("return pos %d mode %d nest %d\n", self->incr_pos, self->incr_mode, self->incr_nest);//D |
|
|
1624 | } |
|
|
1625 | |
|
|
1626 | ///////////////////////////////////////////////////////////////////////////// |
1464 | // XS interface functions |
1627 | // XS interface functions |
1465 | |
1628 | |
1466 | MODULE = JSON::XS PACKAGE = JSON::XS |
1629 | MODULE = JSON::XS PACKAGE = JSON::XS |
1467 | |
1630 | |
1468 | BOOT: |
1631 | BOOT: |
… | |
… | |
1477 | : -1; |
1640 | : -1; |
1478 | |
1641 | |
1479 | json_stash = gv_stashpv ("JSON::XS" , 1); |
1642 | json_stash = gv_stashpv ("JSON::XS" , 1); |
1480 | json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1); |
1643 | json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1); |
1481 | |
1644 | |
1482 | json_true = get_sv ("JSON::XS::true" , 1); SvREADONLY_on (json_true ); |
1645 | json_true = get_bool ("JSON::XS::true"); |
1483 | json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false); |
1646 | json_false = get_bool ("JSON::XS::false"); |
1484 | } |
1647 | } |
1485 | |
1648 | |
1486 | PROTOTYPES: DISABLE |
1649 | PROTOTYPES: DISABLE |
1487 | |
1650 | |
1488 | void CLONE (...) |
1651 | void CLONE (...) |
… | |
… | |
1493 | void new (char *klass) |
1656 | void new (char *klass) |
1494 | PPCODE: |
1657 | PPCODE: |
1495 | { |
1658 | { |
1496 | SV *pv = NEWSV (0, sizeof (JSON)); |
1659 | SV *pv = NEWSV (0, sizeof (JSON)); |
1497 | SvPOK_only (pv); |
1660 | SvPOK_only (pv); |
1498 | Zero (SvPVX (pv), 1, JSON); |
1661 | json_init ((JSON *)SvPVX (pv)); |
1499 | ((JSON *)SvPVX (pv))->flags = F_DEFAULT; |
|
|
1500 | XPUSHs (sv_2mortal (sv_bless ( |
1662 | XPUSHs (sv_2mortal (sv_bless ( |
1501 | newRV_noinc (pv), |
1663 | newRV_noinc (pv), |
1502 | strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1) |
1664 | strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1) |
1503 | ))); |
1665 | ))); |
1504 | } |
1666 | } |
… | |
… | |
1516 | allow_nonref = F_ALLOW_NONREF |
1678 | allow_nonref = F_ALLOW_NONREF |
1517 | shrink = F_SHRINK |
1679 | shrink = F_SHRINK |
1518 | allow_blessed = F_ALLOW_BLESSED |
1680 | allow_blessed = F_ALLOW_BLESSED |
1519 | convert_blessed = F_CONV_BLESSED |
1681 | convert_blessed = F_CONV_BLESSED |
1520 | relaxed = F_RELAXED |
1682 | relaxed = F_RELAXED |
|
|
1683 | allow_unknown = F_ALLOW_UNKNOWN |
1521 | PPCODE: |
1684 | PPCODE: |
1522 | { |
1685 | { |
1523 | if (enable) |
1686 | if (enable) |
1524 | self->flags |= ix; |
1687 | self->flags |= ix; |
1525 | else |
1688 | else |
… | |
… | |
1540 | get_allow_nonref = F_ALLOW_NONREF |
1703 | get_allow_nonref = F_ALLOW_NONREF |
1541 | get_shrink = F_SHRINK |
1704 | get_shrink = F_SHRINK |
1542 | get_allow_blessed = F_ALLOW_BLESSED |
1705 | get_allow_blessed = F_ALLOW_BLESSED |
1543 | get_convert_blessed = F_CONV_BLESSED |
1706 | get_convert_blessed = F_CONV_BLESSED |
1544 | get_relaxed = F_RELAXED |
1707 | get_relaxed = F_RELAXED |
|
|
1708 | get_allow_unknown = F_ALLOW_UNKNOWN |
1545 | PPCODE: |
1709 | PPCODE: |
1546 | XPUSHs (boolSV (self->flags & ix)); |
1710 | XPUSHs (boolSV (self->flags & ix)); |
1547 | |
1711 | |
1548 | void max_depth (JSON *self, UV max_depth = 0x80000000UL) |
1712 | void max_depth (JSON *self, U32 max_depth = 0x80000000UL) |
1549 | PPCODE: |
1713 | PPCODE: |
1550 | { |
1714 | self->max_depth = max_depth; |
1551 | UV log2 = 0; |
|
|
1552 | |
|
|
1553 | if (max_depth > 0x80000000UL) max_depth = 0x80000000UL; |
|
|
1554 | |
|
|
1555 | while ((1UL << log2) < max_depth) |
|
|
1556 | ++log2; |
|
|
1557 | |
|
|
1558 | self->flags = self->flags & ~F_MAXDEPTH | (log2 << S_MAXDEPTH); |
|
|
1559 | |
|
|
1560 | XPUSHs (ST (0)); |
1715 | XPUSHs (ST (0)); |
1561 | } |
|
|
1562 | |
1716 | |
1563 | U32 get_max_depth (JSON *self) |
1717 | U32 get_max_depth (JSON *self) |
1564 | CODE: |
1718 | CODE: |
1565 | RETVAL = DEC_DEPTH (self->flags); |
1719 | RETVAL = self->max_depth; |
1566 | OUTPUT: |
1720 | OUTPUT: |
1567 | RETVAL |
1721 | RETVAL |
1568 | |
1722 | |
1569 | void max_size (JSON *self, UV max_size = 0) |
1723 | void max_size (JSON *self, U32 max_size = 0) |
1570 | PPCODE: |
1724 | PPCODE: |
1571 | { |
1725 | self->max_size = max_size; |
1572 | UV log2 = 0; |
|
|
1573 | |
|
|
1574 | if (max_size > 0x80000000UL) max_size = 0x80000000UL; |
|
|
1575 | if (max_size == 1) max_size = 2; |
|
|
1576 | |
|
|
1577 | while ((1UL << log2) < max_size) |
|
|
1578 | ++log2; |
|
|
1579 | |
|
|
1580 | self->flags = self->flags & ~F_MAXSIZE | (log2 << S_MAXSIZE); |
|
|
1581 | |
|
|
1582 | XPUSHs (ST (0)); |
1726 | XPUSHs (ST (0)); |
1583 | } |
|
|
1584 | |
1727 | |
1585 | int get_max_size (JSON *self) |
1728 | int get_max_size (JSON *self) |
1586 | CODE: |
1729 | CODE: |
1587 | RETVAL = DEC_SIZE (self->flags); |
1730 | RETVAL = self->max_size; |
1588 | OUTPUT: |
1731 | OUTPUT: |
1589 | RETVAL |
1732 | RETVAL |
1590 | |
1733 | |
1591 | void filter_json_object (JSON *self, SV *cb = &PL_sv_undef) |
1734 | void filter_json_object (JSON *self, SV *cb = &PL_sv_undef) |
1592 | PPCODE: |
1735 | PPCODE: |
… | |
… | |
1628 | XPUSHs (decode_json (jsonstr, self, 0)); |
1771 | XPUSHs (decode_json (jsonstr, self, 0)); |
1629 | |
1772 | |
1630 | void decode_prefix (JSON *self, SV *jsonstr) |
1773 | void decode_prefix (JSON *self, SV *jsonstr) |
1631 | PPCODE: |
1774 | PPCODE: |
1632 | { |
1775 | { |
1633 | UV offset; |
1776 | STRLEN offset; |
1634 | EXTEND (SP, 2); |
1777 | EXTEND (SP, 2); |
1635 | PUSHs (decode_json (jsonstr, self, &offset)); |
1778 | PUSHs (decode_json (jsonstr, self, &offset)); |
1636 | PUSHs (sv_2mortal (newSVuv (offset))); |
1779 | PUSHs (sv_2mortal (newSVuv (offset))); |
|
|
1780 | } |
|
|
1781 | |
|
|
1782 | void incr_parse (JSON *self, SV *jsonstr = 0) |
|
|
1783 | PPCODE: |
|
|
1784 | { |
|
|
1785 | if (!self->incr_text) |
|
|
1786 | self->incr_text = newSVpvn ("", 0); |
|
|
1787 | |
|
|
1788 | // append data, if any |
|
|
1789 | if (jsonstr) |
|
|
1790 | { |
|
|
1791 | if (SvUTF8 (jsonstr) && !SvUTF8 (self->incr_text)) |
|
|
1792 | { |
|
|
1793 | /* utf-8-ness differs, need to upgrade */ |
|
|
1794 | sv_utf8_upgrade (self->incr_text); |
|
|
1795 | |
|
|
1796 | if (self->incr_pos) |
|
|
1797 | self->incr_pos = utf8_hop ((U8 *)SvPVX (self->incr_text), self->incr_pos) |
|
|
1798 | - (U8 *)SvPVX (self->incr_text); |
|
|
1799 | } |
|
|
1800 | |
|
|
1801 | { |
|
|
1802 | STRLEN len; |
|
|
1803 | const char *str = SvPV (jsonstr, len); |
|
|
1804 | SvGROW (self->incr_text, SvCUR (self->incr_text) + len + 1); |
|
|
1805 | Move (str, SvEND (self->incr_text), len, char); |
|
|
1806 | SvCUR_set (self->incr_text, SvCUR (self->incr_text) + len); |
|
|
1807 | *SvEND (self->incr_text) = 0; // this should basically be a nop, too, but make sure it's there |
|
|
1808 | } |
|
|
1809 | } |
|
|
1810 | |
|
|
1811 | if (GIMME_V != G_VOID) |
|
|
1812 | do |
|
|
1813 | { |
|
|
1814 | STRLEN offset; |
|
|
1815 | |
|
|
1816 | if (!INCR_DONE (self)) |
|
|
1817 | { |
|
|
1818 | incr_parse (self); |
|
|
1819 | |
|
|
1820 | if (self->incr_pos > self->max_size && self->max_size) |
|
|
1821 | croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu", |
|
|
1822 | (unsigned long)self->incr_pos, (unsigned long)self->max_size); |
|
|
1823 | |
|
|
1824 | if (!INCR_DONE (self)) |
|
|
1825 | break; |
|
|
1826 | } |
|
|
1827 | |
|
|
1828 | XPUSHs (decode_json (self->incr_text, self, &offset)); |
|
|
1829 | |
|
|
1830 | sv_chop (self->incr_text, SvPV_nolen (self->incr_text) + offset); |
|
|
1831 | self->incr_pos -= offset; |
|
|
1832 | self->incr_nest = 0; |
|
|
1833 | self->incr_mode = 0; |
|
|
1834 | } |
|
|
1835 | while (GIMME_V == G_ARRAY); |
|
|
1836 | } |
|
|
1837 | |
|
|
1838 | SV *incr_text (JSON *self) |
|
|
1839 | ATTRS: lvalue |
|
|
1840 | CODE: |
|
|
1841 | { |
|
|
1842 | if (self->incr_pos) |
|
|
1843 | croak ("incr_text can not be called when the incremental parser already started parsing"); |
|
|
1844 | |
|
|
1845 | RETVAL = self->incr_text ? SvREFCNT_inc (self->incr_text) : &PL_sv_undef; |
|
|
1846 | } |
|
|
1847 | OUTPUT: |
|
|
1848 | RETVAL |
|
|
1849 | |
|
|
1850 | void incr_skip (JSON *self) |
|
|
1851 | CODE: |
|
|
1852 | { |
|
|
1853 | if (self->incr_pos) |
|
|
1854 | { |
|
|
1855 | sv_chop (self->incr_text, SvPV_nolen (self->incr_text) + self->incr_pos); |
|
|
1856 | self->incr_pos = 0; |
|
|
1857 | self->incr_nest = 0; |
|
|
1858 | self->incr_mode = 0; |
|
|
1859 | } |
|
|
1860 | } |
|
|
1861 | |
|
|
1862 | void incr_reset (JSON *self) |
|
|
1863 | CODE: |
|
|
1864 | { |
|
|
1865 | SvREFCNT_dec (self->incr_text); |
|
|
1866 | self->incr_text = 0; |
|
|
1867 | self->incr_pos = 0; |
|
|
1868 | self->incr_nest = 0; |
|
|
1869 | self->incr_mode = 0; |
1637 | } |
1870 | } |
1638 | |
1871 | |
1639 | void DESTROY (JSON *self) |
1872 | void DESTROY (JSON *self) |
1640 | CODE: |
1873 | CODE: |
1641 | SvREFCNT_dec (self->cb_sk_object); |
1874 | SvREFCNT_dec (self->cb_sk_object); |
1642 | SvREFCNT_dec (self->cb_object); |
1875 | SvREFCNT_dec (self->cb_object); |
|
|
1876 | SvREFCNT_dec (self->incr_text); |
1643 | |
1877 | |
1644 | PROTOTYPES: ENABLE |
1878 | PROTOTYPES: ENABLE |
1645 | |
1879 | |
1646 | void encode_json (SV *scalar) |
1880 | void encode_json (SV *scalar) |
|
|
1881 | ALIAS: |
|
|
1882 | to_json_ = 0 |
|
|
1883 | encode_json = F_UTF8 |
1647 | PPCODE: |
1884 | PPCODE: |
1648 | { |
1885 | { |
1649 | JSON json = { F_DEFAULT | F_UTF8 }; |
1886 | JSON json; |
|
|
1887 | json_init (&json); |
|
|
1888 | json.flags |= ix; |
1650 | XPUSHs (encode_json (scalar, &json)); |
1889 | XPUSHs (encode_json (scalar, &json)); |
1651 | } |
1890 | } |
1652 | |
1891 | |
1653 | void decode_json (SV *jsonstr) |
1892 | void decode_json (SV *jsonstr) |
|
|
1893 | ALIAS: |
|
|
1894 | from_json_ = 0 |
|
|
1895 | decode_json = F_UTF8 |
1654 | PPCODE: |
1896 | PPCODE: |
1655 | { |
1897 | { |
1656 | JSON json = { F_DEFAULT | F_UTF8 }; |
1898 | JSON json; |
|
|
1899 | json_init (&json); |
|
|
1900 | json.flags |= ix; |
1657 | XPUSHs (decode_json (jsonstr, &json, 0)); |
1901 | XPUSHs (decode_json (jsonstr, &json, 0)); |
1658 | } |
1902 | } |
1659 | |
1903 | |
|
|
1904 | |