… | |
… | |
6 | #include <string.h> |
6 | #include <string.h> |
7 | #include <stdlib.h> |
7 | #include <stdlib.h> |
8 | #include <stdio.h> |
8 | #include <stdio.h> |
9 | #include <limits.h> |
9 | #include <limits.h> |
10 | #include <float.h> |
10 | #include <float.h> |
|
|
11 | #include <inttypes.h> |
11 | |
12 | |
12 | #if defined(__BORLANDC__) || defined(_MSC_VER) |
13 | #if defined(__BORLANDC__) || defined(_MSC_VER) |
13 | # define snprintf _snprintf // C compilers have this in stdio.h |
14 | # define snprintf _snprintf // C compilers have this in stdio.h |
14 | #endif |
15 | #endif |
15 | |
16 | |
16 | // some old perls do not have this, try to make it work, no |
17 | // some old perls do not have this, try to make it work, no |
17 | // guarentees, though. if it breaks, you get to keep the pieces. |
18 | // guarantees, though. if it breaks, you get to keep the pieces. |
18 | #ifndef UTF8_MAXBYTES |
19 | #ifndef UTF8_MAXBYTES |
19 | # define UTF8_MAXBYTES 13 |
20 | # define UTF8_MAXBYTES 13 |
20 | #endif |
21 | #endif |
21 | |
22 | |
|
|
23 | // compatibility with perl <5.18 |
|
|
24 | #ifndef HvNAMELEN_get |
|
|
25 | # define HvNAMELEN_get(hv) strlen (HvNAME (hv)) |
|
|
26 | #endif |
|
|
27 | #ifndef HvNAMELEN |
|
|
28 | # define HvNAMELEN(hv) HvNAMELEN_get (hv) |
|
|
29 | #endif |
|
|
30 | #ifndef HvNAMEUTF8 |
|
|
31 | # define HvNAMEUTF8(hv) 0 |
|
|
32 | #endif |
|
|
33 | |
|
|
34 | // three extra for rounding, sign, and end of string |
22 | #define IVUV_MAXCHARS (sizeof (UV) * CHAR_BIT * 28 / 93 + 2) |
35 | #define IVUV_MAXCHARS (sizeof (UV) * CHAR_BIT * 28 / 93 + 3) |
23 | |
36 | |
24 | #define F_ASCII 0x00000001UL |
37 | #define F_ASCII 0x00000001UL |
25 | #define F_LATIN1 0x00000002UL |
38 | #define F_LATIN1 0x00000002UL |
26 | #define F_UTF8 0x00000004UL |
39 | #define F_UTF8 0x00000004UL |
27 | #define F_INDENT 0x00000008UL |
40 | #define F_INDENT 0x00000008UL |
… | |
… | |
31 | #define F_ALLOW_NONREF 0x00000100UL |
44 | #define F_ALLOW_NONREF 0x00000100UL |
32 | #define F_SHRINK 0x00000200UL |
45 | #define F_SHRINK 0x00000200UL |
33 | #define F_ALLOW_BLESSED 0x00000400UL |
46 | #define F_ALLOW_BLESSED 0x00000400UL |
34 | #define F_CONV_BLESSED 0x00000800UL |
47 | #define F_CONV_BLESSED 0x00000800UL |
35 | #define F_RELAXED 0x00001000UL |
48 | #define F_RELAXED 0x00001000UL |
36 | |
49 | #define F_ALLOW_UNKNOWN 0x00002000UL |
37 | #define F_MAXDEPTH 0xf8000000UL |
50 | #define F_ALLOW_TAGS 0x00004000UL |
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 |
51 | #define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing |
42 | |
52 | |
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 |
53 | #define F_PRETTY F_INDENT | F_SPACE_BEFORE | F_SPACE_AFTER |
47 | #define F_DEFAULT (9UL << S_MAXDEPTH) |
|
|
48 | |
54 | |
49 | #define INIT_SIZE 32 // initial scalar size to be allocated |
55 | #define INIT_SIZE 64 // initial scalar size to be allocated |
50 | #define INDENT_STEP 3 // spaces per indentation level |
56 | #define INDENT_STEP 3 // spaces per indentation level |
51 | |
57 | |
52 | #define SHORT_STRING_LEN 16384 // special-case strings of up to this size |
58 | #define SHORT_STRING_LEN 16384 // special-case strings of up to this size |
|
|
59 | |
|
|
60 | #define DECODE_WANTS_OCTETS(json) ((json)->flags & F_UTF8) |
53 | |
61 | |
54 | #define SB do { |
62 | #define SB do { |
55 | #define SE } while (0) |
63 | #define SE } while (0) |
56 | |
64 | |
57 | #if __GNUC__ >= 3 |
65 | #if __GNUC__ >= 3 |
… | |
… | |
67 | |
75 | |
68 | #define IN_RANGE_INC(type,val,beg,end) \ |
76 | #define IN_RANGE_INC(type,val,beg,end) \ |
69 | ((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \ |
77 | ((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \ |
70 | <= (unsigned type)((unsigned type)(end) - (unsigned type)(beg))) |
78 | <= (unsigned type)((unsigned type)(end) - (unsigned type)(beg))) |
71 | |
79 | |
|
|
80 | #define ERR_NESTING_EXCEEDED "json text or perl structure exceeds maximum nesting level (max_depth set too low?)" |
|
|
81 | |
72 | #ifdef USE_ITHREADS |
82 | #ifdef USE_ITHREADS |
73 | # define JSON_SLOW 1 |
|
|
74 | # define JSON_STASH (json_stash ? json_stash : gv_stashpv ("JSON::XS", 1)) |
83 | # define JSON_STASH (expect_true (json_stash) ? json_stash : gv_stashpv ("JSON::XS", 1)) |
|
|
84 | # define BOOL_STASH (expect_true (bool_stash) ? bool_stash : gv_stashpv ("Types::Serialiser::Boolean", 1)) |
|
|
85 | # define GET_BOOL(value) (expect_true (bool_ ## value) ? bool_ ## value : get_bool ("Types::Serialiser::" # value)) |
75 | #else |
86 | #else |
76 | # define JSON_SLOW 0 |
|
|
77 | # define JSON_STASH json_stash |
87 | # define JSON_STASH json_stash |
|
|
88 | # define BOOL_STASH bool_stash |
|
|
89 | # define GET_BOOL(value) bool_ ## value |
78 | #endif |
90 | #endif |
79 | |
91 | |
80 | static HV *json_stash, *json_boolean_stash; // JSON::XS:: |
92 | // the amount of HEs to allocate on the stack, when sorting keys |
81 | static SV *json_true, *json_false; |
93 | #define STACK_HES 64 |
|
|
94 | |
|
|
95 | static HV *json_stash, *bool_stash; // JSON::XS::, Types::Serialiser::Boolean:: |
|
|
96 | static SV *bool_false, *bool_true; |
|
|
97 | static SV *sv_json; |
82 | |
98 | |
83 | enum { |
99 | enum { |
84 | INCR_M_WS = 0, // initial whitespace skipping, must be 0 |
100 | INCR_M_WS = 0, // initial whitespace skipping, must be 0 |
|
|
101 | INCR_M_TFN, // inside true/false/null |
|
|
102 | INCR_M_NUM, // inside number |
85 | INCR_M_STR, // inside string |
103 | INCR_M_STR, // inside string |
86 | INCR_M_BS, // inside backslash |
104 | INCR_M_BS, // inside backslash |
|
|
105 | INCR_M_C0, // inside comment in initial whitespace sequence |
|
|
106 | INCR_M_C1, // inside comment in other places |
87 | INCR_M_JSON // outside anything, count nesting |
107 | INCR_M_JSON // outside anything, count nesting |
88 | }; |
108 | }; |
89 | |
109 | |
90 | #define INCR_DONE(json) (!(json)->incr_nest && (json)->incr_mode == INCR_M_JSON) |
110 | #define INCR_DONE(json) ((json)->incr_nest <= 0 && (json)->incr_mode == INCR_M_JSON) |
91 | |
111 | |
92 | typedef struct { |
112 | typedef struct { |
93 | U32 flags; |
113 | U32 flags; |
|
|
114 | U32 max_depth; |
|
|
115 | STRLEN max_size; |
|
|
116 | |
94 | SV *cb_object; |
117 | SV *cb_object; |
95 | HV *cb_sk_object; |
118 | HV *cb_sk_object; |
96 | |
119 | |
97 | // for the incremental parser |
120 | // for the incremental parser |
98 | SV *incr_text; // the source text so far |
121 | SV *incr_text; // the source text so far |
99 | STRLEN incr_pos; // the current offset into the text |
122 | STRLEN incr_pos; // the current offset into the text |
100 | int incr_nest; // {[]}-nesting level |
123 | int incr_nest; // {[]}-nesting level |
101 | int incr_mode; |
124 | unsigned char incr_mode; |
|
|
125 | |
|
|
126 | SV *v_false, *v_true; |
102 | } JSON; |
127 | } JSON; |
|
|
128 | |
|
|
129 | INLINE void |
|
|
130 | json_init (JSON *json) |
|
|
131 | { |
|
|
132 | static const JSON init = { F_ALLOW_NONREF, 512 }; |
|
|
133 | |
|
|
134 | *json = init; |
|
|
135 | } |
103 | |
136 | |
104 | ///////////////////////////////////////////////////////////////////////////// |
137 | ///////////////////////////////////////////////////////////////////////////// |
105 | // utility functions |
138 | // utility functions |
106 | |
139 | |
|
|
140 | INLINE SV * |
|
|
141 | get_bool (const char *name) |
|
|
142 | { |
|
|
143 | SV *sv = get_sv (name, 1); |
|
|
144 | |
|
|
145 | SvREADONLY_on (sv); |
|
|
146 | SvREADONLY_on (SvRV (sv)); |
|
|
147 | |
|
|
148 | return sv; |
|
|
149 | } |
|
|
150 | |
107 | INLINE void |
151 | INLINE void |
108 | shrink (SV *sv) |
152 | shrink (SV *sv) |
109 | { |
153 | { |
110 | sv_utf8_downgrade (sv, 1); |
154 | sv_utf8_downgrade (sv, 1); |
|
|
155 | |
111 | if (SvLEN (sv) > SvCUR (sv) + 1) |
156 | if (SvLEN (sv) > SvCUR (sv) + 1) |
112 | { |
157 | { |
113 | #ifdef SvPV_shrink_to_cur |
158 | #ifdef SvPV_shrink_to_cur |
114 | SvPV_shrink_to_cur (sv); |
159 | SvPV_shrink_to_cur (sv); |
115 | #elif defined (SvPV_renew) |
160 | #elif defined (SvPV_renew) |
116 | SvPV_renew (sv, SvCUR (sv) + 1); |
161 | SvPV_renew (sv, SvCUR (sv) + 1); |
117 | #endif |
162 | #endif |
118 | } |
163 | } |
119 | } |
164 | } |
120 | |
165 | |
|
|
166 | /* adds two STRLENs together, slow, and with paranoia */ |
|
|
167 | STRLEN |
|
|
168 | strlen_sum (STRLEN l1, STRLEN l2) |
|
|
169 | { |
|
|
170 | size_t sum = l1 + l2; |
|
|
171 | |
|
|
172 | if (sum < (size_t)l2 || sum != (size_t)(STRLEN)sum) |
|
|
173 | croak ("JSON::XS: string size overflow"); |
|
|
174 | |
|
|
175 | return sum; |
|
|
176 | } |
|
|
177 | |
|
|
178 | /* similar to SvGROW, but somewhat safer and guarantees exponential realloc strategy */ |
|
|
179 | static char * |
|
|
180 | json_sv_grow (SV *sv, size_t len1, size_t len2) |
|
|
181 | { |
|
|
182 | len1 = strlen_sum (len1, len2); |
|
|
183 | len1 = strlen_sum (len1, len1 >> 1); |
|
|
184 | |
|
|
185 | if (len1 > 4096 - 24) |
|
|
186 | len1 = (len1 | 4095) - 24; |
|
|
187 | |
|
|
188 | return SvGROW (sv, len1); |
|
|
189 | } |
|
|
190 | |
121 | // decode an utf-8 character and return it, or (UV)-1 in |
191 | // decode a utf-8 character and return it, or (UV)-1 in |
122 | // case of an error. |
192 | // case of an error. |
123 | // we special-case "safe" characters from U+80 .. U+7FF, |
193 | // we special-case "safe" characters from U+80 .. U+7FF, |
124 | // but use the very good perl function to parse anything else. |
194 | // but use the very good perl function to parse anything else. |
125 | // note that we never call this function for a ascii codepoints |
195 | // note that we never call this function for a ascii codepoints |
126 | INLINE UV |
196 | INLINE UV |
… | |
… | |
159 | *s++ = 0x80 | ( ch & 0x3f); |
229 | *s++ = 0x80 | ( ch & 0x3f); |
160 | |
230 | |
161 | return s; |
231 | return s; |
162 | } |
232 | } |
163 | |
233 | |
|
|
234 | // convert offset pointer to character index, sv must be string |
|
|
235 | static STRLEN |
|
|
236 | ptr_to_index (SV *sv, char *offset) |
|
|
237 | { |
|
|
238 | return SvUTF8 (sv) |
|
|
239 | ? utf8_distance (offset, SvPVX (sv)) |
|
|
240 | : offset - SvPVX (sv); |
|
|
241 | } |
|
|
242 | |
|
|
243 | ///////////////////////////////////////////////////////////////////////////// |
|
|
244 | // fp hell |
|
|
245 | |
|
|
246 | // scan a group of digits, and a trailing exponent |
|
|
247 | static void |
|
|
248 | json_atof_scan1 (const char *s, NV *accum, int *expo, int postdp, int maxdepth) |
|
|
249 | { |
|
|
250 | UV uaccum = 0; |
|
|
251 | int eaccum = 0; |
|
|
252 | |
|
|
253 | // if we recurse too deep, skip all remaining digits |
|
|
254 | // to avoid a stack overflow attack |
|
|
255 | if (expect_false (--maxdepth <= 0)) |
|
|
256 | while (((U8)*s - '0') < 10) |
|
|
257 | ++s; |
|
|
258 | |
|
|
259 | for (;;) |
|
|
260 | { |
|
|
261 | U8 dig = (U8)*s - '0'; |
|
|
262 | |
|
|
263 | if (expect_false (dig >= 10)) |
|
|
264 | { |
|
|
265 | if (dig == (U8)((U8)'.' - (U8)'0')) |
|
|
266 | { |
|
|
267 | ++s; |
|
|
268 | json_atof_scan1 (s, accum, expo, 1, maxdepth); |
|
|
269 | } |
|
|
270 | else if ((dig | ' ') == 'e' - '0') |
|
|
271 | { |
|
|
272 | int exp2 = 0; |
|
|
273 | int neg = 0; |
|
|
274 | |
|
|
275 | ++s; |
|
|
276 | |
|
|
277 | if (*s == '-') |
|
|
278 | { |
|
|
279 | ++s; |
|
|
280 | neg = 1; |
|
|
281 | } |
|
|
282 | else if (*s == '+') |
|
|
283 | ++s; |
|
|
284 | |
|
|
285 | while ((dig = (U8)*s - '0') < 10) |
|
|
286 | exp2 = exp2 * 10 + *s++ - '0'; |
|
|
287 | |
|
|
288 | *expo += neg ? -exp2 : exp2; |
|
|
289 | } |
|
|
290 | |
|
|
291 | break; |
|
|
292 | } |
|
|
293 | |
|
|
294 | ++s; |
|
|
295 | |
|
|
296 | uaccum = uaccum * 10 + dig; |
|
|
297 | ++eaccum; |
|
|
298 | |
|
|
299 | // if we have too many digits, then recurse for more |
|
|
300 | // we actually do this for rather few digits |
|
|
301 | if (uaccum >= (UV_MAX - 9) / 10) |
|
|
302 | { |
|
|
303 | if (postdp) *expo -= eaccum; |
|
|
304 | json_atof_scan1 (s, accum, expo, postdp, maxdepth); |
|
|
305 | if (postdp) *expo += eaccum; |
|
|
306 | |
|
|
307 | break; |
|
|
308 | } |
|
|
309 | } |
|
|
310 | |
|
|
311 | // this relies greatly on the quality of the pow () |
|
|
312 | // implementation of the platform, but a good |
|
|
313 | // implementation is hard to beat. |
|
|
314 | // (IEEE 754 conformant ones are required to be exact) |
|
|
315 | if (postdp) *expo -= eaccum; |
|
|
316 | *accum += uaccum * Perl_pow (10., *expo); |
|
|
317 | *expo += eaccum; |
|
|
318 | } |
|
|
319 | |
|
|
320 | static NV |
|
|
321 | json_atof (const char *s) |
|
|
322 | { |
|
|
323 | NV accum = 0.; |
|
|
324 | int expo = 0; |
|
|
325 | int neg = 0; |
|
|
326 | |
|
|
327 | if (*s == '-') |
|
|
328 | { |
|
|
329 | ++s; |
|
|
330 | neg = 1; |
|
|
331 | } |
|
|
332 | |
|
|
333 | // a recursion depth of ten gives us >>500 bits |
|
|
334 | json_atof_scan1 (s, &accum, &expo, 0, 10); |
|
|
335 | |
|
|
336 | return neg ? -accum : accum; |
|
|
337 | } |
|
|
338 | |
|
|
339 | // target of scalar reference is bool? -1 == nope, 0 == false, 1 == true |
|
|
340 | static int |
|
|
341 | ref_bool_type (SV *sv) |
|
|
342 | { |
|
|
343 | svtype svt = SvTYPE (sv); |
|
|
344 | |
|
|
345 | if (svt < SVt_PVAV) |
|
|
346 | { |
|
|
347 | STRLEN len = 0; |
|
|
348 | char *pv = svt ? SvPV (sv, len) : 0; |
|
|
349 | |
|
|
350 | if (len == 1) |
|
|
351 | if (*pv == '1') |
|
|
352 | return 1; |
|
|
353 | else if (*pv == '0') |
|
|
354 | return 0; |
|
|
355 | } |
|
|
356 | |
|
|
357 | return -1; |
|
|
358 | } |
|
|
359 | |
|
|
360 | // returns whether scalar is not a reference in the sense of allow_nonref |
|
|
361 | static int |
|
|
362 | json_nonref (SV *scalar) |
|
|
363 | { |
|
|
364 | if (!SvROK (scalar)) |
|
|
365 | return 1; |
|
|
366 | |
|
|
367 | scalar = SvRV (scalar); |
|
|
368 | |
|
|
369 | if (SvTYPE (scalar) >= SVt_PVMG) |
|
|
370 | { |
|
|
371 | if (SvSTASH (scalar) == bool_stash) |
|
|
372 | return 1; |
|
|
373 | |
|
|
374 | if (!SvOBJECT (scalar) && ref_bool_type (scalar) >= 0) |
|
|
375 | return 1; |
|
|
376 | } |
|
|
377 | |
|
|
378 | return 0; |
|
|
379 | } |
|
|
380 | |
164 | ///////////////////////////////////////////////////////////////////////////// |
381 | ///////////////////////////////////////////////////////////////////////////// |
165 | // encoder |
382 | // encoder |
166 | |
383 | |
167 | // structure used for encoding JSON |
384 | // structure used for encoding JSON |
168 | typedef struct |
385 | typedef struct |
… | |
… | |
170 | char *cur; // SvPVX (sv) + current output position |
387 | char *cur; // SvPVX (sv) + current output position |
171 | char *end; // SvEND (sv) |
388 | char *end; // SvEND (sv) |
172 | SV *sv; // result scalar |
389 | SV *sv; // result scalar |
173 | JSON json; |
390 | JSON json; |
174 | U32 indent; // indentation level |
391 | U32 indent; // indentation level |
175 | U32 maxdepth; // max. indentation/recursion level |
|
|
176 | UV limit; // escape character values >= this value when encoding |
392 | UV limit; // escape character values >= this value when encoding |
177 | } enc_t; |
393 | } enc_t; |
178 | |
394 | |
179 | INLINE void |
395 | INLINE void |
180 | need (enc_t *enc, STRLEN len) |
396 | need (enc_t *enc, STRLEN len) |
181 | { |
397 | { |
182 | if (expect_false (enc->cur + len >= enc->end)) |
398 | if (expect_false ((uintptr_t)(enc->end - enc->cur) < len)) |
183 | { |
399 | { |
184 | STRLEN cur = enc->cur - SvPVX (enc->sv); |
400 | STRLEN cur = enc->cur - (char *)SvPVX (enc->sv); |
185 | SvGROW (enc->sv, cur + len + 1); |
401 | char *buf = json_sv_grow (enc->sv, cur, len); |
186 | enc->cur = SvPVX (enc->sv) + cur; |
402 | enc->cur = buf + cur; |
187 | enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1; |
403 | enc->end = buf + SvLEN (enc->sv) - 1; |
188 | } |
404 | } |
189 | } |
405 | } |
190 | |
406 | |
191 | INLINE void |
407 | INLINE void |
192 | encode_ch (enc_t *enc, char ch) |
408 | encode_ch (enc_t *enc, char ch) |
… | |
… | |
208 | |
424 | |
209 | if (expect_true (ch >= 0x20 && ch < 0x80)) // most common case |
425 | if (expect_true (ch >= 0x20 && ch < 0x80)) // most common case |
210 | { |
426 | { |
211 | if (expect_false (ch == '"')) // but with slow exceptions |
427 | if (expect_false (ch == '"')) // but with slow exceptions |
212 | { |
428 | { |
213 | need (enc, len += 1); |
429 | need (enc, len + 1); |
214 | *enc->cur++ = '\\'; |
430 | *enc->cur++ = '\\'; |
215 | *enc->cur++ = '"'; |
431 | *enc->cur++ = '"'; |
216 | } |
432 | } |
217 | else if (expect_false (ch == '\\')) |
433 | else if (expect_false (ch == '\\')) |
218 | { |
434 | { |
219 | need (enc, len += 1); |
435 | need (enc, len + 1); |
220 | *enc->cur++ = '\\'; |
436 | *enc->cur++ = '\\'; |
221 | *enc->cur++ = '\\'; |
437 | *enc->cur++ = '\\'; |
222 | } |
438 | } |
223 | else |
439 | else |
224 | *enc->cur++ = ch; |
440 | *enc->cur++ = ch; |
… | |
… | |
227 | } |
443 | } |
228 | else |
444 | else |
229 | { |
445 | { |
230 | switch (ch) |
446 | switch (ch) |
231 | { |
447 | { |
232 | case '\010': need (enc, len += 1); *enc->cur++ = '\\'; *enc->cur++ = 'b'; ++str; break; |
448 | case '\010': need (enc, len + 1); *enc->cur++ = '\\'; *enc->cur++ = 'b'; ++str; break; |
233 | case '\011': need (enc, len += 1); *enc->cur++ = '\\'; *enc->cur++ = 't'; ++str; break; |
449 | case '\011': need (enc, len + 1); *enc->cur++ = '\\'; *enc->cur++ = 't'; ++str; break; |
234 | case '\012': need (enc, len += 1); *enc->cur++ = '\\'; *enc->cur++ = 'n'; ++str; break; |
450 | case '\012': need (enc, len + 1); *enc->cur++ = '\\'; *enc->cur++ = 'n'; ++str; break; |
235 | case '\014': need (enc, len += 1); *enc->cur++ = '\\'; *enc->cur++ = 'f'; ++str; break; |
451 | case '\014': need (enc, len + 1); *enc->cur++ = '\\'; *enc->cur++ = 'f'; ++str; break; |
236 | case '\015': need (enc, len += 1); *enc->cur++ = '\\'; *enc->cur++ = 'r'; ++str; break; |
452 | case '\015': need (enc, len + 1); *enc->cur++ = '\\'; *enc->cur++ = 'r'; ++str; break; |
237 | |
453 | |
238 | default: |
454 | default: |
239 | { |
455 | { |
240 | STRLEN clen; |
456 | STRLEN clen; |
241 | UV uch; |
457 | UV uch; |
… | |
… | |
257 | if (uch >= 0x10000UL) |
473 | if (uch >= 0x10000UL) |
258 | { |
474 | { |
259 | if (uch >= 0x110000UL) |
475 | if (uch >= 0x110000UL) |
260 | croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch); |
476 | croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch); |
261 | |
477 | |
262 | need (enc, len += 11); |
478 | need (enc, len + 11); |
263 | sprintf (enc->cur, "\\u%04x\\u%04x", |
479 | sprintf (enc->cur, "\\u%04x\\u%04x", |
264 | (int)((uch - 0x10000) / 0x400 + 0xD800), |
480 | (int)((uch - 0x10000) / 0x400 + 0xD800), |
265 | (int)((uch - 0x10000) % 0x400 + 0xDC00)); |
481 | (int)((uch - 0x10000) % 0x400 + 0xDC00)); |
266 | enc->cur += 12; |
482 | enc->cur += 12; |
267 | } |
483 | } |
268 | else |
484 | else |
269 | { |
485 | { |
270 | static char hexdigit [16] = "0123456789abcdef"; |
|
|
271 | need (enc, len += 5); |
486 | need (enc, len + 5); |
272 | *enc->cur++ = '\\'; |
487 | *enc->cur++ = '\\'; |
273 | *enc->cur++ = 'u'; |
488 | *enc->cur++ = 'u'; |
274 | *enc->cur++ = hexdigit [ uch >> 12 ]; |
489 | *enc->cur++ = PL_hexdigit [ uch >> 12 ]; |
275 | *enc->cur++ = hexdigit [(uch >> 8) & 15]; |
490 | *enc->cur++ = PL_hexdigit [(uch >> 8) & 15]; |
276 | *enc->cur++ = hexdigit [(uch >> 4) & 15]; |
491 | *enc->cur++ = PL_hexdigit [(uch >> 4) & 15]; |
277 | *enc->cur++ = hexdigit [(uch >> 0) & 15]; |
492 | *enc->cur++ = PL_hexdigit [(uch >> 0) & 15]; |
278 | } |
493 | } |
279 | |
494 | |
280 | str += clen; |
495 | str += clen; |
281 | } |
496 | } |
282 | else if (enc->json.flags & F_LATIN1) |
497 | else if (enc->json.flags & F_LATIN1) |
… | |
… | |
284 | *enc->cur++ = uch; |
499 | *enc->cur++ = uch; |
285 | str += clen; |
500 | str += clen; |
286 | } |
501 | } |
287 | else if (is_utf8) |
502 | else if (is_utf8) |
288 | { |
503 | { |
289 | need (enc, len += clen); |
504 | need (enc, len + clen); |
290 | do |
505 | do |
291 | { |
506 | { |
292 | *enc->cur++ = *str++; |
507 | *enc->cur++ = *str++; |
293 | } |
508 | } |
294 | while (--clen); |
509 | while (--clen); |
295 | } |
510 | } |
296 | else |
511 | else |
297 | { |
512 | { |
298 | need (enc, len += UTF8_MAXBYTES - 1); // never more than 11 bytes needed |
513 | need (enc, len + UTF8_MAXBYTES - 1); // never more than 11 bytes needed |
299 | enc->cur = encode_utf8 (enc->cur, uch); |
514 | enc->cur = encode_utf8 (enc->cur, uch); |
300 | ++str; |
515 | ++str; |
301 | } |
516 | } |
302 | } |
517 | } |
303 | } |
518 | } |
… | |
… | |
353 | static void |
568 | static void |
354 | encode_av (enc_t *enc, AV *av) |
569 | encode_av (enc_t *enc, AV *av) |
355 | { |
570 | { |
356 | int i, len = av_len (av); |
571 | int i, len = av_len (av); |
357 | |
572 | |
358 | if (enc->indent >= enc->maxdepth) |
573 | if (enc->indent >= enc->json.max_depth) |
359 | croak ("data structure too deep (hit recursion limit)"); |
574 | croak (ERR_NESTING_EXCEEDED); |
360 | |
575 | |
361 | encode_ch (enc, '['); |
576 | encode_ch (enc, '['); |
362 | |
577 | |
363 | if (len >= 0) |
578 | if (len >= 0) |
364 | { |
579 | { |
365 | encode_nl (enc); ++enc->indent; |
580 | encode_nl (enc); ++enc->indent; |
366 | |
581 | |
367 | for (i = 0; i <= len; ++i) |
582 | for (i = 0; i <= len; ++i) |
… | |
… | |
379 | encode_comma (enc); |
594 | encode_comma (enc); |
380 | } |
595 | } |
381 | |
596 | |
382 | encode_nl (enc); --enc->indent; encode_indent (enc); |
597 | encode_nl (enc); --enc->indent; encode_indent (enc); |
383 | } |
598 | } |
384 | |
599 | |
385 | encode_ch (enc, ']'); |
600 | encode_ch (enc, ']'); |
386 | } |
601 | } |
387 | |
602 | |
388 | static void |
603 | static void |
389 | encode_hk (enc_t *enc, HE *he) |
604 | encode_hk (enc_t *enc, HE *he) |
… | |
… | |
393 | if (HeKLEN (he) == HEf_SVKEY) |
608 | if (HeKLEN (he) == HEf_SVKEY) |
394 | { |
609 | { |
395 | SV *sv = HeSVKEY (he); |
610 | SV *sv = HeSVKEY (he); |
396 | STRLEN len; |
611 | STRLEN len; |
397 | char *str; |
612 | char *str; |
398 | |
613 | |
399 | SvGETMAGIC (sv); |
614 | SvGETMAGIC (sv); |
400 | str = SvPV (sv, len); |
615 | str = SvPV (sv, len); |
401 | |
616 | |
402 | encode_str (enc, str, len, SvUTF8 (sv)); |
617 | encode_str (enc, str, len, SvUTF8 (sv)); |
403 | } |
618 | } |
… | |
… | |
438 | |
653 | |
439 | static void |
654 | static void |
440 | encode_hv (enc_t *enc, HV *hv) |
655 | encode_hv (enc_t *enc, HV *hv) |
441 | { |
656 | { |
442 | HE *he; |
657 | HE *he; |
443 | int count; |
|
|
444 | |
658 | |
445 | if (enc->indent >= enc->maxdepth) |
659 | if (enc->indent >= enc->json.max_depth) |
446 | croak ("data structure too deep (hit recursion limit)"); |
660 | croak (ERR_NESTING_EXCEEDED); |
447 | |
661 | |
448 | encode_ch (enc, '{'); |
662 | encode_ch (enc, '{'); |
449 | |
663 | |
450 | // for canonical output we have to sort by keys first |
664 | // for canonical output we have to sort by keys first |
451 | // actually, this is mostly due to the stupid so-called |
665 | // actually, this is mostly due to the stupid so-called |
452 | // security workaround added somewhere in 5.8.x. |
666 | // security workaround added somewhere in 5.8.x |
453 | // that randomises hash orderings |
667 | // that randomises hash orderings |
454 | if (enc->json.flags & F_CANONICAL) |
668 | if (enc->json.flags & F_CANONICAL && !SvRMAGICAL (hv)) |
455 | { |
669 | { |
456 | int count = hv_iterinit (hv); |
670 | int count = hv_iterinit (hv); |
457 | |
671 | |
458 | if (SvMAGICAL (hv)) |
672 | if (SvMAGICAL (hv)) |
459 | { |
673 | { |
… | |
… | |
470 | } |
684 | } |
471 | |
685 | |
472 | if (count) |
686 | if (count) |
473 | { |
687 | { |
474 | int i, fast = 1; |
688 | int i, fast = 1; |
475 | #if defined(__BORLANDC__) || defined(_MSC_VER) |
689 | HE *hes_stack [STACK_HES]; |
476 | HE **hes = _alloca (count * sizeof (HE)); |
690 | HE **hes = hes_stack; |
477 | #else |
691 | |
478 | HE *hes [count]; // if your compiler dies here, you need to enable C99 mode |
692 | // allocate larger arrays on the heap |
479 | #endif |
693 | if (count > STACK_HES) |
|
|
694 | { |
|
|
695 | SV *sv = sv_2mortal (NEWSV (0, count * sizeof (*hes))); |
|
|
696 | hes = (HE **)SvPVX (sv); |
|
|
697 | } |
480 | |
698 | |
481 | i = 0; |
699 | i = 0; |
482 | while ((he = hv_iternext (hv))) |
700 | while ((he = hv_iternext (hv))) |
483 | { |
701 | { |
484 | hes [i++] = he; |
702 | hes [i++] = he; |
… | |
… | |
553 | // encode objects, arrays and special \0=false and \1=true values. |
771 | // encode objects, arrays and special \0=false and \1=true values. |
554 | static void |
772 | static void |
555 | encode_rv (enc_t *enc, SV *sv) |
773 | encode_rv (enc_t *enc, SV *sv) |
556 | { |
774 | { |
557 | svtype svt; |
775 | svtype svt; |
|
|
776 | GV *method; |
558 | |
777 | |
559 | SvGETMAGIC (sv); |
778 | SvGETMAGIC (sv); |
560 | svt = SvTYPE (sv); |
779 | svt = SvTYPE (sv); |
561 | |
780 | |
562 | if (expect_false (SvOBJECT (sv))) |
781 | if (expect_false (SvOBJECT (sv))) |
563 | { |
782 | { |
564 | HV *stash = !JSON_SLOW || json_boolean_stash |
783 | HV *stash = SvSTASH (sv); |
565 | ? json_boolean_stash |
|
|
566 | : gv_stashpv ("JSON::XS::Boolean", 1); |
|
|
567 | |
784 | |
568 | if (SvSTASH (sv) == stash) |
785 | if (stash == bool_stash) |
569 | { |
786 | { |
570 | if (SvIV (sv)) |
|
|
571 | encode_str (enc, "true", 4, 0); |
787 | if (SvIV (sv)) encode_str (enc, "true" , 4, 0); |
572 | else |
|
|
573 | encode_str (enc, "false", 5, 0); |
788 | else encode_str (enc, "false", 5, 0); |
574 | } |
789 | } |
|
|
790 | else if ((enc->json.flags & F_ALLOW_TAGS) && (method = gv_fetchmethod_autoload (stash, "FREEZE", 0))) |
|
|
791 | { |
|
|
792 | int count; |
|
|
793 | dSP; |
|
|
794 | |
|
|
795 | ENTER; SAVETMPS; |
|
|
796 | PUSHMARK (SP); |
|
|
797 | EXTEND (SP, 2); |
|
|
798 | // we re-bless the reference to get overload and other niceties right |
|
|
799 | PUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
|
|
800 | PUSHs (sv_json); |
|
|
801 | |
|
|
802 | PUTBACK; |
|
|
803 | count = call_sv ((SV *)GvCV (method), G_ARRAY); |
|
|
804 | SPAGAIN; |
|
|
805 | |
|
|
806 | // catch this surprisingly common error |
|
|
807 | if (SvROK (TOPs) && SvRV (TOPs) == sv) |
|
|
808 | croak ("%s::FREEZE method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv))); |
|
|
809 | |
|
|
810 | encode_ch (enc, '('); |
|
|
811 | encode_ch (enc, '"'); |
|
|
812 | encode_str (enc, HvNAME (stash), HvNAMELEN (stash), HvNAMEUTF8 (stash)); |
|
|
813 | encode_ch (enc, '"'); |
|
|
814 | encode_ch (enc, ')'); |
|
|
815 | encode_ch (enc, '['); |
|
|
816 | |
|
|
817 | if (count) |
|
|
818 | { |
|
|
819 | int i; |
|
|
820 | |
|
|
821 | for (i = 0; i < count - 1; ++i) |
|
|
822 | { |
|
|
823 | encode_sv (enc, SP[i + 1 - count]); |
|
|
824 | encode_ch (enc, ','); |
|
|
825 | } |
|
|
826 | |
|
|
827 | encode_sv (enc, TOPs); |
|
|
828 | SP -= count; |
|
|
829 | } |
|
|
830 | |
|
|
831 | encode_ch (enc, ']'); |
|
|
832 | |
|
|
833 | FREETMPS; LEAVE; |
|
|
834 | } |
|
|
835 | else if ((enc->json.flags & F_CONV_BLESSED) && (method = gv_fetchmethod_autoload (stash, "TO_JSON", 0))) |
|
|
836 | { |
|
|
837 | dSP; |
|
|
838 | |
|
|
839 | ENTER; SAVETMPS; |
|
|
840 | PUSHMARK (SP); |
|
|
841 | // we re-bless the reference to get overload and other niceties right |
|
|
842 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), stash)); |
|
|
843 | |
|
|
844 | // calling with G_SCALAR ensures that we always get a 1 return value |
|
|
845 | PUTBACK; |
|
|
846 | call_sv ((SV *)GvCV (method), G_SCALAR); |
|
|
847 | SPAGAIN; |
|
|
848 | |
|
|
849 | // catch this surprisingly common error |
|
|
850 | if (SvROK (TOPs) && SvRV (TOPs) == sv) |
|
|
851 | croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv))); |
|
|
852 | |
|
|
853 | sv = POPs; |
|
|
854 | PUTBACK; |
|
|
855 | |
|
|
856 | encode_sv (enc, sv); |
|
|
857 | |
|
|
858 | FREETMPS; LEAVE; |
|
|
859 | } |
|
|
860 | else if (enc->json.flags & F_ALLOW_BLESSED) |
|
|
861 | encode_str (enc, "null", 4, 0); |
575 | else |
862 | else |
576 | { |
|
|
577 | #if 0 |
|
|
578 | if (0 && sv_derived_from (rv, "JSON::Literal")) |
|
|
579 | { |
|
|
580 | // not yet |
|
|
581 | } |
|
|
582 | #endif |
|
|
583 | if (enc->json.flags & F_CONV_BLESSED) |
|
|
584 | { |
|
|
585 | // we re-bless the reference to get overload and other niceties right |
|
|
586 | GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 0); |
|
|
587 | |
|
|
588 | if (to_json) |
|
|
589 | { |
|
|
590 | dSP; |
|
|
591 | |
|
|
592 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
593 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv))); |
|
|
594 | |
|
|
595 | // calling with G_SCALAR ensures that we always get a 1 return value |
|
|
596 | PUTBACK; |
|
|
597 | call_sv ((SV *)GvCV (to_json), G_SCALAR); |
|
|
598 | SPAGAIN; |
|
|
599 | |
|
|
600 | // catch this surprisingly common error |
|
|
601 | if (SvROK (TOPs) && SvRV (TOPs) == sv) |
|
|
602 | croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv))); |
|
|
603 | |
|
|
604 | sv = POPs; |
|
|
605 | PUTBACK; |
|
|
606 | |
|
|
607 | encode_sv (enc, sv); |
|
|
608 | |
|
|
609 | FREETMPS; LEAVE; |
|
|
610 | } |
|
|
611 | else if (enc->json.flags & F_ALLOW_BLESSED) |
|
|
612 | encode_str (enc, "null", 4, 0); |
|
|
613 | else |
|
|
614 | croak ("encountered object '%s', but neither allow_blessed enabled nor TO_JSON method available on it", |
|
|
615 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
|
|
616 | } |
|
|
617 | else if (enc->json.flags & F_ALLOW_BLESSED) |
|
|
618 | encode_str (enc, "null", 4, 0); |
|
|
619 | else |
|
|
620 | croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled", |
863 | croak ("encountered object '%s', but neither allow_blessed, convert_blessed nor allow_tags settings are enabled (or TO_JSON/FREEZE method missing)", |
621 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
864 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
622 | } |
|
|
623 | } |
865 | } |
624 | else if (svt == SVt_PVHV) |
866 | else if (svt == SVt_PVHV) |
625 | encode_hv (enc, (HV *)sv); |
867 | encode_hv (enc, (HV *)sv); |
626 | else if (svt == SVt_PVAV) |
868 | else if (svt == SVt_PVAV) |
627 | encode_av (enc, (AV *)sv); |
869 | encode_av (enc, (AV *)sv); |
628 | else if (svt < SVt_PVAV) |
870 | else if (svt < SVt_PVAV) |
629 | { |
871 | { |
630 | STRLEN len = 0; |
872 | int bool_type = ref_bool_type (sv); |
631 | char *pv = svt ? SvPV (sv, len) : 0; |
|
|
632 | |
873 | |
633 | if (len == 1 && *pv == '1') |
874 | if (bool_type == 1) |
634 | encode_str (enc, "true", 4, 0); |
875 | encode_str (enc, "true", 4, 0); |
635 | else if (len == 1 && *pv == '0') |
876 | else if (bool_type == 0) |
636 | encode_str (enc, "false", 5, 0); |
877 | encode_str (enc, "false", 5, 0); |
|
|
878 | else if (enc->json.flags & F_ALLOW_UNKNOWN) |
|
|
879 | encode_str (enc, "null", 4, 0); |
637 | else |
880 | else |
638 | croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1", |
881 | croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1", |
639 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
882 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
640 | } |
883 | } |
|
|
884 | else if (enc->json.flags & F_ALLOW_UNKNOWN) |
|
|
885 | encode_str (enc, "null", 4, 0); |
641 | else |
886 | else |
642 | croak ("encountered %s, but JSON can only represent references to arrays or hashes", |
887 | croak ("encountered %s, but JSON can only represent references to arrays or hashes", |
643 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
888 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
644 | } |
889 | } |
645 | |
890 | |
… | |
… | |
699 | } |
944 | } |
700 | else |
945 | else |
701 | { |
946 | { |
702 | // large integer, use the (rather slow) snprintf way. |
947 | // large integer, use the (rather slow) snprintf way. |
703 | need (enc, IVUV_MAXCHARS); |
948 | need (enc, IVUV_MAXCHARS); |
704 | enc->cur += |
949 | enc->cur += |
705 | SvIsUV(sv) |
950 | SvIsUV(sv) |
706 | ? snprintf (enc->cur, IVUV_MAXCHARS, "%"UVuf, (UV)SvUVX (sv)) |
951 | ? snprintf (enc->cur, IVUV_MAXCHARS, "%"UVuf, (UV)SvUVX (sv)) |
707 | : snprintf (enc->cur, IVUV_MAXCHARS, "%"IVdf, (IV)SvIVX (sv)); |
952 | : snprintf (enc->cur, IVUV_MAXCHARS, "%"IVdf, (IV)SvIVX (sv)); |
708 | } |
953 | } |
709 | } |
954 | } |
710 | else if (SvROK (sv)) |
955 | else if (SvROK (sv)) |
711 | encode_rv (enc, SvRV (sv)); |
956 | encode_rv (enc, SvRV (sv)); |
712 | else if (!SvOK (sv)) |
957 | else if (!SvOK (sv) || enc->json.flags & F_ALLOW_UNKNOWN) |
713 | encode_str (enc, "null", 4, 0); |
958 | encode_str (enc, "null", 4, 0); |
714 | else |
959 | else |
715 | croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this", |
960 | croak ("encountered perl type (%s,0x%x) that JSON cannot handle, check your input data", |
716 | SvPV_nolen (sv), SvFLAGS (sv)); |
961 | SvPV_nolen (sv), (unsigned int)SvFLAGS (sv)); |
717 | } |
962 | } |
718 | |
963 | |
719 | static SV * |
964 | static SV * |
720 | encode_json (SV *scalar, JSON *json) |
965 | encode_json (SV *scalar, JSON *json) |
721 | { |
966 | { |
722 | enc_t enc; |
967 | enc_t enc; |
723 | |
968 | |
724 | if (!(json->flags & F_ALLOW_NONREF) && !SvROK (scalar)) |
969 | if (!(json->flags & F_ALLOW_NONREF) && json_nonref (scalar)) |
725 | croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)"); |
970 | croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)"); |
726 | |
971 | |
727 | enc.json = *json; |
972 | enc.json = *json; |
728 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
973 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
729 | enc.cur = SvPVX (enc.sv); |
974 | enc.cur = SvPVX (enc.sv); |
730 | enc.end = SvEND (enc.sv); |
975 | enc.end = SvEND (enc.sv); |
731 | enc.indent = 0; |
976 | enc.indent = 0; |
732 | enc.maxdepth = DEC_DEPTH (enc.json.flags); |
|
|
733 | enc.limit = enc.json.flags & F_ASCII ? 0x000080UL |
977 | enc.limit = enc.json.flags & F_ASCII ? 0x000080UL |
734 | : enc.json.flags & F_LATIN1 ? 0x000100UL |
978 | : enc.json.flags & F_LATIN1 ? 0x000100UL |
735 | : 0x110000UL; |
979 | : 0x110000UL; |
736 | |
980 | |
737 | SvPOK_only (enc.sv); |
981 | SvPOK_only (enc.sv); |
738 | encode_sv (&enc, scalar); |
982 | encode_sv (&enc, scalar); |
|
|
983 | encode_nl (&enc); |
739 | |
984 | |
740 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
985 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
741 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
986 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
742 | |
987 | |
743 | if (!(enc.json.flags & (F_ASCII | F_LATIN1 | F_UTF8))) |
988 | if (!(enc.json.flags & (F_ASCII | F_LATIN1 | F_UTF8))) |
… | |
… | |
804 | if (*dec->cur != ch) \ |
1049 | if (*dec->cur != ch) \ |
805 | ERR (# ch " expected"); \ |
1050 | ERR (# ch " expected"); \ |
806 | ++dec->cur; \ |
1051 | ++dec->cur; \ |
807 | SE |
1052 | SE |
808 | |
1053 | |
809 | #define DEC_INC_DEPTH if (++dec->depth > dec->maxdepth) ERR ("json datastructure exceeds maximum nesting level (set a higher max_depth)") |
1054 | #define DEC_INC_DEPTH if (++dec->depth > dec->json.max_depth) ERR (ERR_NESTING_EXCEEDED) |
810 | #define DEC_DEC_DEPTH --dec->depth |
1055 | #define DEC_DEC_DEPTH --dec->depth |
811 | |
1056 | |
812 | static SV *decode_sv (dec_t *dec); |
1057 | static SV *decode_sv (dec_t *dec); |
813 | |
1058 | |
814 | static signed char decode_hexdigit[256]; |
1059 | static signed char decode_hexdigit[256]; |
… | |
… | |
923 | else if (expect_true (ch >= 0x20 && ch < 0x80)) |
1168 | else if (expect_true (ch >= 0x20 && ch < 0x80)) |
924 | *cur++ = ch; |
1169 | *cur++ = ch; |
925 | else if (ch >= 0x80) |
1170 | else if (ch >= 0x80) |
926 | { |
1171 | { |
927 | STRLEN clen; |
1172 | STRLEN clen; |
928 | UV uch; |
|
|
929 | |
1173 | |
930 | --dec_cur; |
1174 | --dec_cur; |
931 | |
1175 | |
932 | uch = decode_utf8 (dec_cur, dec->end - dec_cur, &clen); |
1176 | decode_utf8 (dec_cur, dec->end - dec_cur, &clen); |
933 | if (clen == (STRLEN)-1) |
1177 | if (clen == (STRLEN)-1) |
934 | ERR ("malformed UTF-8 character in JSON string"); |
1178 | ERR ("malformed UTF-8 character in JSON string"); |
935 | |
1179 | |
936 | do |
1180 | do |
937 | *cur++ = *dec_cur++; |
1181 | *cur++ = *dec_cur++; |
938 | while (--clen); |
1182 | while (--clen); |
939 | |
1183 | |
940 | utf8 = 1; |
1184 | utf8 = 1; |
941 | } |
1185 | } |
|
|
1186 | else if (ch == '\t' && dec->json.flags & F_RELAXED) |
|
|
1187 | *cur++ = ch; |
942 | else |
1188 | else |
943 | { |
1189 | { |
944 | --dec_cur; |
1190 | --dec_cur; |
945 | |
1191 | |
946 | if (!ch) |
1192 | if (!ch) |
… | |
… | |
954 | { |
1200 | { |
955 | STRLEN len = cur - buf; |
1201 | STRLEN len = cur - buf; |
956 | |
1202 | |
957 | if (sv) |
1203 | if (sv) |
958 | { |
1204 | { |
959 | SvGROW (sv, SvCUR (sv) + len + 1); |
1205 | STRLEN cur = SvCUR (sv); |
|
|
1206 | |
|
|
1207 | if (SvLEN (sv) - cur <= len) |
|
|
1208 | json_sv_grow (sv, cur, len); |
|
|
1209 | |
960 | memcpy (SvPVX (sv) + SvCUR (sv), buf, len); |
1210 | memcpy (SvPVX (sv) + SvCUR (sv), buf, len); |
961 | SvCUR_set (sv, SvCUR (sv) + len); |
1211 | SvCUR_set (sv, SvCUR (sv) + len); |
962 | } |
1212 | } |
963 | else |
1213 | else |
964 | sv = newSVpvn (buf, len); |
1214 | sv = newSVpvn (buf, len); |
… | |
… | |
1055 | |
1305 | |
1056 | // special case the rather common 1..5-digit-int case |
1306 | // special case the rather common 1..5-digit-int case |
1057 | if (*start == '-') |
1307 | if (*start == '-') |
1058 | switch (len) |
1308 | switch (len) |
1059 | { |
1309 | { |
1060 | case 2: return newSViv (-( start [1] - '0' * 1)); |
1310 | case 2: return newSViv (-(IV)( start [1] - '0' * 1)); |
1061 | case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11)); |
1311 | case 3: return newSViv (-(IV)( start [1] * 10 + start [2] - '0' * 11)); |
1062 | case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111)); |
1312 | case 4: return newSViv (-(IV)( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111)); |
1063 | case 5: return newSViv (-( start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111)); |
1313 | case 5: return newSViv (-(IV)( start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111)); |
1064 | case 6: return newSViv (-(start [1] * 10000 + start [2] * 1000 + start [3] * 100 + start [4] * 10 + start [5] - '0' * 11111)); |
1314 | case 6: return newSViv (-(IV)(start [1] * 10000 + start [2] * 1000 + start [3] * 100 + start [4] * 10 + start [5] - '0' * 11111)); |
1065 | } |
1315 | } |
1066 | else |
1316 | else |
1067 | switch (len) |
1317 | switch (len) |
1068 | { |
1318 | { |
1069 | case 1: return newSViv ( start [0] - '0' * 1); |
1319 | case 1: return newSViv ( start [0] - '0' * 1); |
1070 | case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11); |
1320 | case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11); |
1071 | case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111); |
1321 | case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111); |
1072 | case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111); |
1322 | case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111); |
1073 | case 5: return newSViv ( start [0] * 10000 + start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 11111); |
1323 | case 5: return newSViv ( start [0] * 10000 + start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 11111); |
1074 | } |
1324 | } |
1075 | |
1325 | |
1076 | { |
1326 | { |
1077 | UV uv; |
1327 | UV uv; |
1078 | int numtype = grok_number (start, len, &uv); |
1328 | int numtype = grok_number (start, len, &uv); |
… | |
… | |
1087 | } |
1337 | } |
1088 | |
1338 | |
1089 | len -= *start == '-' ? 1 : 0; |
1339 | len -= *start == '-' ? 1 : 0; |
1090 | |
1340 | |
1091 | // does not fit into IV or UV, try NV |
1341 | // does not fit into IV or UV, try NV |
1092 | if ((sizeof (NV) == sizeof (double) && DBL_DIG >= len) |
1342 | if (len <= NV_DIG) |
1093 | #if defined (LDBL_DIG) |
|
|
1094 | || (sizeof (NV) == sizeof (long double) && LDBL_DIG >= len) |
|
|
1095 | #endif |
|
|
1096 | ) |
|
|
1097 | // fits into NV without loss of precision |
1343 | // fits into NV without loss of precision |
1098 | return newSVnv (Atof (start)); |
1344 | return newSVnv (json_atof (start)); |
1099 | |
1345 | |
1100 | // everything else fails, convert it to a string |
1346 | // everything else fails, convert it to a string |
1101 | return newSVpvn (start, dec->cur - start); |
1347 | return newSVpvn (start, dec->cur - start); |
1102 | } |
1348 | } |
1103 | |
1349 | |
1104 | // loss of precision here |
1350 | // loss of precision here |
1105 | return newSVnv (Atof (start)); |
1351 | return newSVnv (json_atof (start)); |
1106 | |
1352 | |
1107 | fail: |
1353 | fail: |
1108 | return 0; |
1354 | return 0; |
1109 | } |
1355 | } |
1110 | |
1356 | |
… | |
… | |
1134 | if (*dec->cur == ']') |
1380 | if (*dec->cur == ']') |
1135 | { |
1381 | { |
1136 | ++dec->cur; |
1382 | ++dec->cur; |
1137 | break; |
1383 | break; |
1138 | } |
1384 | } |
1139 | |
1385 | |
1140 | if (*dec->cur != ',') |
1386 | if (*dec->cur != ',') |
1141 | ERR (", or ] expected while parsing array"); |
1387 | ERR (", or ] expected while parsing array"); |
1142 | |
1388 | |
1143 | ++dec->cur; |
1389 | ++dec->cur; |
1144 | |
1390 | |
… | |
… | |
1268 | |
1514 | |
1269 | hv_iterinit (hv); |
1515 | hv_iterinit (hv); |
1270 | he = hv_iternext (hv); |
1516 | he = hv_iternext (hv); |
1271 | hv_iterinit (hv); |
1517 | hv_iterinit (hv); |
1272 | |
1518 | |
1273 | // the next line creates a mortal sv each time its called. |
1519 | // the next line creates a mortal sv each time it's called. |
1274 | // might want to optimise this for common cases. |
1520 | // might want to optimise this for common cases. |
1275 | cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0); |
1521 | cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0); |
1276 | |
1522 | |
1277 | if (cb) |
1523 | if (cb) |
1278 | { |
1524 | { |
1279 | dSP; |
1525 | dSP; |
1280 | int count; |
1526 | int count; |
1281 | |
1527 | |
1282 | ENTER; SAVETMPS; PUSHMARK (SP); |
1528 | ENTER; SAVETMPS; |
|
|
1529 | PUSHMARK (SP); |
1283 | XPUSHs (HeVAL (he)); |
1530 | XPUSHs (HeVAL (he)); |
|
|
1531 | sv_2mortal (sv); |
1284 | |
1532 | |
1285 | PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN; |
1533 | PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN; |
1286 | |
1534 | |
1287 | if (count == 1) |
1535 | if (count == 1) |
1288 | { |
1536 | { |
1289 | sv = newSVsv (POPs); |
1537 | sv = newSVsv (POPs); |
1290 | FREETMPS; LEAVE; |
1538 | FREETMPS; LEAVE; |
1291 | return sv; |
1539 | return sv; |
1292 | } |
1540 | } |
|
|
1541 | else if (count) |
|
|
1542 | croak ("filter_json_single_key_object callbacks must not return more than one scalar"); |
1293 | |
1543 | |
|
|
1544 | SvREFCNT_inc (sv); |
1294 | FREETMPS; LEAVE; |
1545 | FREETMPS; LEAVE; |
1295 | } |
1546 | } |
1296 | } |
1547 | } |
1297 | |
1548 | |
1298 | if (dec->json.cb_object) |
1549 | if (dec->json.cb_object) |
1299 | { |
1550 | { |
1300 | dSP; |
1551 | dSP; |
1301 | int count; |
1552 | int count; |
1302 | |
1553 | |
1303 | ENTER; SAVETMPS; PUSHMARK (SP); |
1554 | ENTER; SAVETMPS; |
|
|
1555 | PUSHMARK (SP); |
1304 | XPUSHs (sv_2mortal (sv)); |
1556 | XPUSHs (sv_2mortal (sv)); |
1305 | |
1557 | |
1306 | PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN; |
1558 | PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN; |
1307 | |
1559 | |
1308 | if (count == 1) |
1560 | if (count == 1) |
1309 | { |
1561 | { |
1310 | sv = newSVsv (POPs); |
1562 | sv = newSVsv (POPs); |
1311 | FREETMPS; LEAVE; |
1563 | FREETMPS; LEAVE; |
1312 | return sv; |
1564 | return sv; |
1313 | } |
1565 | } |
|
|
1566 | else if (count) |
|
|
1567 | croak ("filter_json_object callbacks must not return more than one scalar"); |
1314 | |
1568 | |
1315 | SvREFCNT_inc (sv); |
1569 | SvREFCNT_inc (sv); |
1316 | FREETMPS; LEAVE; |
1570 | FREETMPS; LEAVE; |
1317 | } |
1571 | } |
1318 | } |
1572 | } |
… | |
… | |
1324 | DEC_DEC_DEPTH; |
1578 | DEC_DEC_DEPTH; |
1325 | return 0; |
1579 | return 0; |
1326 | } |
1580 | } |
1327 | |
1581 | |
1328 | static SV * |
1582 | static SV * |
|
|
1583 | decode_tag (dec_t *dec) |
|
|
1584 | { |
|
|
1585 | SV *tag = 0; |
|
|
1586 | SV *val = 0; |
|
|
1587 | |
|
|
1588 | if (!(dec->json.flags & F_ALLOW_TAGS)) |
|
|
1589 | ERR ("malformed JSON string, neither array, object, number, string or atom"); |
|
|
1590 | |
|
|
1591 | ++dec->cur; |
|
|
1592 | |
|
|
1593 | decode_ws (dec); |
|
|
1594 | |
|
|
1595 | tag = decode_sv (dec); |
|
|
1596 | if (!tag) |
|
|
1597 | goto fail; |
|
|
1598 | |
|
|
1599 | if (!SvPOK (tag)) |
|
|
1600 | ERR ("malformed JSON string, (tag) must be a string"); |
|
|
1601 | |
|
|
1602 | decode_ws (dec); |
|
|
1603 | |
|
|
1604 | if (*dec->cur != ')') |
|
|
1605 | ERR (") expected after tag"); |
|
|
1606 | |
|
|
1607 | ++dec->cur; |
|
|
1608 | |
|
|
1609 | decode_ws (dec); |
|
|
1610 | |
|
|
1611 | val = decode_sv (dec); |
|
|
1612 | if (!val) |
|
|
1613 | goto fail; |
|
|
1614 | |
|
|
1615 | if (!SvROK (val) || SvTYPE (SvRV (val)) != SVt_PVAV) |
|
|
1616 | ERR ("malformed JSON string, tag value must be an array"); |
|
|
1617 | |
|
|
1618 | { |
|
|
1619 | AV *av = (AV *)SvRV (val); |
|
|
1620 | int i, len = av_len (av) + 1; |
|
|
1621 | HV *stash = gv_stashsv (tag, 0); |
|
|
1622 | SV *sv; |
|
|
1623 | |
|
|
1624 | if (!stash) |
|
|
1625 | ERR ("cannot decode perl-object (package does not exist)"); |
|
|
1626 | |
|
|
1627 | GV *method = gv_fetchmethod_autoload (stash, "THAW", 0); |
|
|
1628 | |
|
|
1629 | if (!method) |
|
|
1630 | ERR ("cannot decode perl-object (package does not have a THAW method)"); |
|
|
1631 | |
|
|
1632 | dSP; |
|
|
1633 | |
|
|
1634 | ENTER; SAVETMPS; |
|
|
1635 | PUSHMARK (SP); |
|
|
1636 | EXTEND (SP, len + 2); |
|
|
1637 | // we re-bless the reference to get overload and other niceties right |
|
|
1638 | PUSHs (tag); |
|
|
1639 | PUSHs (sv_json); |
|
|
1640 | |
|
|
1641 | for (i = 0; i < len; ++i) |
|
|
1642 | PUSHs (*av_fetch (av, i, 1)); |
|
|
1643 | |
|
|
1644 | PUTBACK; |
|
|
1645 | call_sv ((SV *)GvCV (method), G_SCALAR); |
|
|
1646 | SPAGAIN; |
|
|
1647 | |
|
|
1648 | SvREFCNT_dec (tag); |
|
|
1649 | SvREFCNT_dec (val); |
|
|
1650 | sv = SvREFCNT_inc (POPs); |
|
|
1651 | |
|
|
1652 | PUTBACK; |
|
|
1653 | |
|
|
1654 | FREETMPS; LEAVE; |
|
|
1655 | |
|
|
1656 | return sv; |
|
|
1657 | } |
|
|
1658 | |
|
|
1659 | fail: |
|
|
1660 | SvREFCNT_dec (tag); |
|
|
1661 | SvREFCNT_dec (val); |
|
|
1662 | return 0; |
|
|
1663 | } |
|
|
1664 | |
|
|
1665 | static SV * |
1329 | decode_sv (dec_t *dec) |
1666 | decode_sv (dec_t *dec) |
1330 | { |
1667 | { |
1331 | // the beauty of JSON: you need exactly one character lookahead |
1668 | // the beauty of JSON: you need exactly one character lookahead |
1332 | // to parse everything. |
1669 | // to parse everything. |
1333 | switch (*dec->cur) |
1670 | switch (*dec->cur) |
1334 | { |
1671 | { |
1335 | case '"': ++dec->cur; return decode_str (dec); |
1672 | case '"': ++dec->cur; return decode_str (dec); |
1336 | case '[': ++dec->cur; return decode_av (dec); |
1673 | case '[': ++dec->cur; return decode_av (dec); |
1337 | case '{': ++dec->cur; return decode_hv (dec); |
1674 | case '{': ++dec->cur; return decode_hv (dec); |
|
|
1675 | case '(': return decode_tag (dec); |
1338 | |
1676 | |
1339 | case '-': |
1677 | case '-': |
1340 | case '0': case '1': case '2': case '3': case '4': |
1678 | case '0': case '1': case '2': case '3': case '4': |
1341 | case '5': case '6': case '7': case '8': case '9': |
1679 | case '5': case '6': case '7': case '8': case '9': |
1342 | return decode_num (dec); |
1680 | return decode_num (dec); |
1343 | |
1681 | |
|
|
1682 | case 'f': |
|
|
1683 | if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5)) |
|
|
1684 | { |
|
|
1685 | dec->cur += 5; |
|
|
1686 | |
|
|
1687 | if (expect_false (!dec->json.v_false)) |
|
|
1688 | dec->json.v_false = GET_BOOL (false); |
|
|
1689 | |
|
|
1690 | return newSVsv (dec->json.v_false); |
|
|
1691 | } |
|
|
1692 | else |
|
|
1693 | ERR ("'false' expected"); |
|
|
1694 | |
|
|
1695 | break; |
|
|
1696 | |
1344 | case 't': |
1697 | case 't': |
1345 | if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4)) |
1698 | if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4)) |
1346 | { |
1699 | { |
1347 | dec->cur += 4; |
1700 | dec->cur += 4; |
1348 | #if JSON_SLOW |
1701 | |
1349 | json_true = get_sv ("JSON::XS::true", 1); SvREADONLY_on (json_true); |
1702 | if (expect_false (!dec->json.v_true)) |
1350 | #endif |
1703 | dec->json.v_true = GET_BOOL (true); |
1351 | return SvREFCNT_inc (json_true); |
1704 | |
|
|
1705 | return newSVsv (dec->json.v_true); |
1352 | } |
1706 | } |
1353 | else |
1707 | else |
1354 | ERR ("'true' expected"); |
1708 | ERR ("'true' expected"); |
1355 | |
|
|
1356 | break; |
|
|
1357 | |
|
|
1358 | case 'f': |
|
|
1359 | if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5)) |
|
|
1360 | { |
|
|
1361 | dec->cur += 5; |
|
|
1362 | #if JSON_SLOW |
|
|
1363 | json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false); |
|
|
1364 | #endif |
|
|
1365 | return SvREFCNT_inc (json_false); |
|
|
1366 | } |
|
|
1367 | else |
|
|
1368 | ERR ("'false' expected"); |
|
|
1369 | |
1709 | |
1370 | break; |
1710 | break; |
1371 | |
1711 | |
1372 | case 'n': |
1712 | case 'n': |
1373 | if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "null", 4)) |
1713 | if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "null", 4)) |
… | |
… | |
1379 | ERR ("'null' expected"); |
1719 | ERR ("'null' expected"); |
1380 | |
1720 | |
1381 | break; |
1721 | break; |
1382 | |
1722 | |
1383 | default: |
1723 | default: |
1384 | ERR ("malformed JSON string, neither array, object, number, string or atom"); |
1724 | ERR ("malformed JSON string, neither tag, array, object, number, string or atom"); |
1385 | break; |
1725 | break; |
1386 | } |
1726 | } |
1387 | |
1727 | |
1388 | fail: |
1728 | fail: |
1389 | return 0; |
1729 | return 0; |
… | |
… | |
1391 | |
1731 | |
1392 | static SV * |
1732 | static SV * |
1393 | decode_json (SV *string, JSON *json, STRLEN *offset_return) |
1733 | decode_json (SV *string, JSON *json, STRLEN *offset_return) |
1394 | { |
1734 | { |
1395 | dec_t dec; |
1735 | dec_t dec; |
1396 | STRLEN offset; |
|
|
1397 | SV *sv; |
1736 | SV *sv; |
1398 | |
1737 | |
|
|
1738 | /* work around bugs in 5.10 where manipulating magic values |
|
|
1739 | * makes perl ignore the magic in subsequent accesses. |
|
|
1740 | * also make a copy of non-PV values, to get them into a clean |
|
|
1741 | * state (SvPV should do that, but it's buggy, see below). |
|
|
1742 | * |
|
|
1743 | * SvIsCOW_shared_hash works around a bug in perl (possibly 5.16), |
|
|
1744 | * as reported by Reini Urban. |
|
|
1745 | */ |
1399 | SvGETMAGIC (string); |
1746 | /*SvGETMAGIC (string);*/ |
|
|
1747 | if (SvMAGICAL (string) || !SvPOK (string) || SvIsCOW_shared_hash (string)) |
|
|
1748 | string = sv_2mortal (newSVsv (string)); |
|
|
1749 | |
1400 | SvUPGRADE (string, SVt_PV); |
1750 | SvUPGRADE (string, SVt_PV); |
1401 | |
1751 | |
1402 | if (json->flags & F_MAXSIZE && SvCUR (string) > DEC_SIZE (json->flags)) |
1752 | /* work around a bug in perl 5.10, which causes SvCUR to fail an |
|
|
1753 | * assertion with -DDEBUGGING, although SvCUR is documented to |
|
|
1754 | * return the xpv_cur field which certainly exists after upgrading. |
|
|
1755 | * according to nicholas clark, calling SvPOK fixes this. |
|
|
1756 | * But it doesn't fix it, so try another workaround, call SvPV_nolen |
|
|
1757 | * and hope for the best. |
|
|
1758 | * Damnit, SvPV_nolen still trips over yet another assertion. This |
|
|
1759 | * assertion business is seriously broken, try yet another workaround |
|
|
1760 | * for the broken -DDEBUGGING. |
|
|
1761 | */ |
|
|
1762 | { |
|
|
1763 | #ifdef DEBUGGING |
|
|
1764 | STRLEN offset = SvOK (string) ? sv_len (string) : 0; |
|
|
1765 | #else |
|
|
1766 | STRLEN offset = SvCUR (string); |
|
|
1767 | #endif |
|
|
1768 | |
|
|
1769 | if (offset > json->max_size && json->max_size) |
1403 | croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu", |
1770 | croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu", |
1404 | (unsigned long)SvCUR (string), (unsigned long)DEC_SIZE (json->flags)); |
1771 | (unsigned long)SvCUR (string), (unsigned long)json->max_size); |
|
|
1772 | } |
1405 | |
1773 | |
1406 | if (json->flags & F_UTF8) |
1774 | if (DECODE_WANTS_OCTETS (json)) |
1407 | sv_utf8_downgrade (string, 0); |
1775 | sv_utf8_downgrade (string, 0); |
1408 | else |
1776 | else |
1409 | sv_utf8_upgrade (string); |
1777 | sv_utf8_upgrade (string); |
1410 | |
1778 | |
1411 | SvGROW (string, SvCUR (string) + 1); // should basically be a NOP |
1779 | SvGROW (string, SvCUR (string) + 1); // should basically be a NOP |
1412 | |
1780 | |
1413 | dec.json = *json; |
1781 | dec.json = *json; |
1414 | dec.cur = SvPVX (string); |
1782 | dec.cur = SvPVX (string); |
1415 | dec.end = SvEND (string); |
1783 | dec.end = SvEND (string); |
1416 | dec.err = 0; |
1784 | dec.err = 0; |
1417 | dec.depth = 0; |
1785 | dec.depth = 0; |
1418 | dec.maxdepth = DEC_DEPTH (dec.json.flags); |
|
|
1419 | |
1786 | |
1420 | if (dec.json.cb_object || dec.json.cb_sk_object) |
1787 | if (dec.json.cb_object || dec.json.cb_sk_object) |
1421 | dec.json.flags |= F_HOOK; |
1788 | dec.json.flags |= F_HOOK; |
1422 | |
1789 | |
1423 | *dec.end = 0; // this should basically be a nop, too, but make sure it's there |
1790 | *dec.end = 0; // this should basically be a nop, too, but make sure it's there |
1424 | |
1791 | |
1425 | decode_ws (&dec); |
1792 | decode_ws (&dec); |
1426 | sv = decode_sv (&dec); |
1793 | sv = decode_sv (&dec); |
1427 | |
1794 | |
1428 | if (!(offset_return || !sv)) |
1795 | if (offset_return) |
|
|
1796 | *offset_return = dec.cur - SvPVX (string); |
|
|
1797 | else if (sv) |
1429 | { |
1798 | { |
1430 | // check for trailing garbage |
1799 | // check for trailing garbage |
1431 | decode_ws (&dec); |
1800 | decode_ws (&dec); |
1432 | |
1801 | |
1433 | if (*dec.cur) |
1802 | if (dec.cur != dec.end) |
1434 | { |
1803 | { |
1435 | dec.err = "garbage after JSON object"; |
1804 | dec.err = "garbage after JSON object"; |
1436 | SvREFCNT_dec (sv); |
1805 | SvREFCNT_dec (sv); |
1437 | sv = 0; |
1806 | sv = 0; |
1438 | } |
1807 | } |
1439 | } |
|
|
1440 | |
|
|
1441 | if (offset_return || !sv) |
|
|
1442 | { |
|
|
1443 | offset = dec.json.flags & F_UTF8 |
|
|
1444 | ? dec.cur - SvPVX (string) |
|
|
1445 | : utf8_distance (dec.cur, SvPVX (string)); |
|
|
1446 | |
|
|
1447 | if (offset_return) |
|
|
1448 | *offset_return = offset; |
|
|
1449 | } |
1808 | } |
1450 | |
1809 | |
1451 | if (!sv) |
1810 | if (!sv) |
1452 | { |
1811 | { |
1453 | SV *uni = sv_newmortal (); |
1812 | SV *uni = sv_newmortal (); |
… | |
… | |
1459 | SAVEVPTR (PL_curcop); |
1818 | SAVEVPTR (PL_curcop); |
1460 | PL_curcop = &cop; |
1819 | PL_curcop = &cop; |
1461 | pv_uni_display (uni, dec.cur, dec.end - dec.cur, 20, UNI_DISPLAY_QQ); |
1820 | pv_uni_display (uni, dec.cur, dec.end - dec.cur, 20, UNI_DISPLAY_QQ); |
1462 | LEAVE; |
1821 | LEAVE; |
1463 | |
1822 | |
1464 | croak ("%s, at character offset %d [\"%s\"]", |
1823 | croak ("%s, at character offset %d (before \"%s\")", |
1465 | dec.err, |
1824 | dec.err, |
1466 | (int)offset, |
1825 | (int)ptr_to_index (string, dec.cur), |
1467 | dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)"); |
1826 | dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)"); |
1468 | } |
1827 | } |
1469 | |
1828 | |
1470 | sv = sv_2mortal (sv); |
1829 | sv = sv_2mortal (sv); |
1471 | |
1830 | |
1472 | if (!(dec.json.flags & F_ALLOW_NONREF) && !SvROK (sv)) |
1831 | if (!(dec.json.flags & F_ALLOW_NONREF) && json_nonref (sv)) |
1473 | croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)"); |
1832 | croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)"); |
1474 | |
1833 | |
1475 | return sv; |
1834 | return sv; |
1476 | } |
1835 | } |
1477 | |
1836 | |
… | |
… | |
1481 | static void |
1840 | static void |
1482 | incr_parse (JSON *self) |
1841 | incr_parse (JSON *self) |
1483 | { |
1842 | { |
1484 | const char *p = SvPVX (self->incr_text) + self->incr_pos; |
1843 | const char *p = SvPVX (self->incr_text) + self->incr_pos; |
1485 | |
1844 | |
|
|
1845 | // the state machine here is a bit convoluted and could be simplified a lot |
|
|
1846 | // but this would make it slower, so... |
|
|
1847 | |
1486 | for (;;) |
1848 | for (;;) |
1487 | { |
1849 | { |
1488 | //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 |
|
|
1489 | switch (self->incr_mode) |
1850 | switch (self->incr_mode) |
1490 | { |
1851 | { |
|
|
1852 | // reached end of a scalar, see if we are inside a nested structure or not |
|
|
1853 | end_of_scalar: |
|
|
1854 | self->incr_mode = INCR_M_JSON; |
|
|
1855 | |
|
|
1856 | if (self->incr_nest) // end of a scalar inside array, object or tag |
|
|
1857 | goto incr_m_json; |
|
|
1858 | else // end of scalar outside structure, json text ends here |
|
|
1859 | goto interrupt; |
|
|
1860 | |
1491 | // only used for intiial whitespace skipping |
1861 | // only used for initial whitespace skipping |
1492 | case INCR_M_WS: |
1862 | case INCR_M_WS: |
1493 | for (;;) |
1863 | for (;;) |
1494 | { |
1864 | { |
1495 | if (*p > 0x20) |
1865 | if (*p > 0x20) |
1496 | { |
1866 | { |
|
|
1867 | if (*p == '#') |
|
|
1868 | { |
|
|
1869 | self->incr_mode = INCR_M_C0; |
|
|
1870 | goto incr_m_c; |
|
|
1871 | } |
|
|
1872 | else |
|
|
1873 | { |
1497 | self->incr_mode = INCR_M_JSON; |
1874 | self->incr_mode = INCR_M_JSON; |
1498 | goto incr_m_json; |
1875 | goto incr_m_json; |
|
|
1876 | } |
1499 | } |
1877 | } |
1500 | else if (!*p) |
1878 | else if (!*p) |
1501 | goto interrupt; |
1879 | goto interrupt; |
1502 | |
1880 | |
1503 | ++p; |
1881 | ++p; |
… | |
… | |
1509 | goto interrupt; |
1887 | goto interrupt; |
1510 | |
1888 | |
1511 | ++p; |
1889 | ++p; |
1512 | self->incr_mode = INCR_M_STR; |
1890 | self->incr_mode = INCR_M_STR; |
1513 | goto incr_m_str; |
1891 | goto incr_m_str; |
|
|
1892 | |
|
|
1893 | // inside #-style comments |
|
|
1894 | case INCR_M_C0: |
|
|
1895 | case INCR_M_C1: |
|
|
1896 | incr_m_c: |
|
|
1897 | for (;;) |
|
|
1898 | { |
|
|
1899 | if (*p == '\n') |
|
|
1900 | { |
|
|
1901 | self->incr_mode = self->incr_mode == INCR_M_C0 ? INCR_M_WS : INCR_M_JSON; |
|
|
1902 | break; |
|
|
1903 | } |
|
|
1904 | else if (!*p) |
|
|
1905 | goto interrupt; |
|
|
1906 | |
|
|
1907 | ++p; |
|
|
1908 | } |
|
|
1909 | |
|
|
1910 | break; |
|
|
1911 | |
|
|
1912 | // inside true/false/null |
|
|
1913 | case INCR_M_TFN: |
|
|
1914 | incr_m_tfn: |
|
|
1915 | for (;;) |
|
|
1916 | switch (*p++) |
|
|
1917 | { |
|
|
1918 | case 'r': case 'u': case 'e': // tRUE, falsE, nUll |
|
|
1919 | case 'a': case 'l': case 's': // fALSe, nuLL |
|
|
1920 | // allowed |
|
|
1921 | break; |
|
|
1922 | |
|
|
1923 | default: |
|
|
1924 | --p; |
|
|
1925 | goto end_of_scalar; |
|
|
1926 | } |
|
|
1927 | |
|
|
1928 | // inside a number |
|
|
1929 | case INCR_M_NUM: |
|
|
1930 | incr_m_num: |
|
|
1931 | for (;;) |
|
|
1932 | switch (*p++) |
|
|
1933 | { |
|
|
1934 | case 'e': case 'E': case '.': case '+': |
|
|
1935 | case '-': |
|
|
1936 | case '0': case '1': case '2': case '3': case '4': |
|
|
1937 | case '5': case '6': case '7': case '8': case '9': |
|
|
1938 | // allowed |
|
|
1939 | break; |
|
|
1940 | |
|
|
1941 | default: |
|
|
1942 | --p; |
|
|
1943 | goto end_of_scalar; |
|
|
1944 | } |
1514 | |
1945 | |
1515 | // inside a string |
1946 | // inside a string |
1516 | case INCR_M_STR: |
1947 | case INCR_M_STR: |
1517 | incr_m_str: |
1948 | incr_m_str: |
1518 | for (;;) |
1949 | for (;;) |
1519 | { |
1950 | { |
1520 | if (*p == '"') |
1951 | if (*p == '"') |
1521 | { |
1952 | { |
1522 | ++p; |
1953 | ++p; |
1523 | self->incr_mode = INCR_M_JSON; |
|
|
1524 | |
|
|
1525 | if (!self->incr_nest) |
|
|
1526 | goto interrupt; |
|
|
1527 | |
|
|
1528 | goto incr_m_json; |
1954 | goto end_of_scalar; |
1529 | } |
1955 | } |
1530 | else if (*p == '\\') |
1956 | else if (*p == '\\') |
1531 | { |
1957 | { |
1532 | ++p; // "virtually" consumes character after \ |
1958 | ++p; // "virtually" consumes character after \ |
1533 | |
1959 | |
… | |
… | |
1563 | --p; // do not eat the whitespace, let the next round do it |
1989 | --p; // do not eat the whitespace, let the next round do it |
1564 | goto interrupt; |
1990 | goto interrupt; |
1565 | } |
1991 | } |
1566 | break; |
1992 | break; |
1567 | |
1993 | |
|
|
1994 | // the following three blocks handle scalars. this makes the parser |
|
|
1995 | // more strict than required inside arrays or objects, and could |
|
|
1996 | // be moved to a special case on the toplevel (except strings) |
|
|
1997 | case 't': |
|
|
1998 | case 'f': |
|
|
1999 | case 'n': |
|
|
2000 | self->incr_mode = INCR_M_TFN; |
|
|
2001 | goto incr_m_tfn; |
|
|
2002 | |
|
|
2003 | case '-': |
|
|
2004 | case '0': case '1': case '2': case '3': case '4': |
|
|
2005 | case '5': case '6': case '7': case '8': case '9': |
|
|
2006 | self->incr_mode = INCR_M_NUM; |
|
|
2007 | goto incr_m_num; |
|
|
2008 | |
1568 | case '"': |
2009 | case '"': |
1569 | self->incr_mode = INCR_M_STR; |
2010 | self->incr_mode = INCR_M_STR; |
1570 | goto incr_m_str; |
2011 | goto incr_m_str; |
1571 | |
2012 | |
1572 | case '[': |
2013 | case '[': |
1573 | case '{': |
2014 | case '{': |
|
|
2015 | case '(': |
1574 | ++self->incr_nest; |
2016 | if (++self->incr_nest > self->max_depth) |
|
|
2017 | croak (ERR_NESTING_EXCEEDED); |
1575 | break; |
2018 | break; |
1576 | |
2019 | |
1577 | case ']': |
2020 | case ']': |
1578 | case '}': |
2021 | case '}': |
1579 | if (!--self->incr_nest) |
2022 | if (--self->incr_nest <= 0) |
1580 | goto interrupt; |
2023 | goto interrupt; |
|
|
2024 | break; |
|
|
2025 | |
|
|
2026 | case ')': |
|
|
2027 | --self->incr_nest; |
|
|
2028 | break; |
|
|
2029 | |
|
|
2030 | case '#': |
|
|
2031 | self->incr_mode = INCR_M_C1; |
|
|
2032 | goto incr_m_c; |
1581 | } |
2033 | } |
1582 | } |
2034 | } |
1583 | } |
2035 | } |
1584 | |
2036 | |
1585 | modechange: |
2037 | modechange: |
1586 | ; |
2038 | ; |
1587 | } |
2039 | } |
1588 | |
2040 | |
1589 | interrupt: |
2041 | interrupt: |
1590 | self->incr_pos = p - SvPVX (self->incr_text); |
2042 | self->incr_pos = p - SvPVX (self->incr_text); |
|
|
2043 | //printf ("interrupt<%.*s>\n", self->incr_pos, SvPVX(self->incr_text));//D |
1591 | //printf ("return pos %d mode %d nest %d\n", self->incr_pos, self->incr_mode, self->incr_nest);//D |
2044 | //printf ("return pos %d mode %d nest %d\n", self->incr_pos, self->incr_mode, self->incr_nest);//D |
1592 | } |
2045 | } |
1593 | |
2046 | |
1594 | ///////////////////////////////////////////////////////////////////////////// |
2047 | ///////////////////////////////////////////////////////////////////////////// |
1595 | // XS interface functions |
2048 | // XS interface functions |
… | |
… | |
1605 | i >= '0' && i <= '9' ? i - '0' |
2058 | i >= '0' && i <= '9' ? i - '0' |
1606 | : i >= 'a' && i <= 'f' ? i - 'a' + 10 |
2059 | : i >= 'a' && i <= 'f' ? i - 'a' + 10 |
1607 | : i >= 'A' && i <= 'F' ? i - 'A' + 10 |
2060 | : i >= 'A' && i <= 'F' ? i - 'A' + 10 |
1608 | : -1; |
2061 | : -1; |
1609 | |
2062 | |
1610 | json_stash = gv_stashpv ("JSON::XS" , 1); |
2063 | json_stash = gv_stashpv ("JSON::XS" , 1); |
1611 | json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1); |
2064 | bool_stash = gv_stashpv ("Types::Serialiser::Boolean", 1); |
|
|
2065 | bool_false = get_bool ("Types::Serialiser::false"); |
|
|
2066 | bool_true = get_bool ("Types::Serialiser::true"); |
1612 | |
2067 | |
1613 | json_true = get_sv ("JSON::XS::true" , 1); SvREADONLY_on (json_true ); |
2068 | sv_json = newSVpv ("JSON", 0); |
1614 | json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false); |
2069 | SvREADONLY_on (sv_json); |
|
|
2070 | |
|
|
2071 | CvNODEBUG_on (get_cv ("JSON::XS::incr_text", 0)); /* the debugger completely breaks lvalue subs */ |
1615 | } |
2072 | } |
1616 | |
2073 | |
1617 | PROTOTYPES: DISABLE |
2074 | PROTOTYPES: DISABLE |
1618 | |
2075 | |
1619 | void CLONE (...) |
2076 | void CLONE (...) |
1620 | CODE: |
2077 | CODE: |
|
|
2078 | // as long as these writes are atomic, the race should not matter |
|
|
2079 | // as existing threads either already use 0, or use the old value, |
|
|
2080 | // which is sitll correct for the initial thread. |
1621 | json_stash = 0; |
2081 | json_stash = 0; |
1622 | json_boolean_stash = 0; |
2082 | bool_stash = 0; |
|
|
2083 | bool_false = 0; |
|
|
2084 | bool_true = 0; |
1623 | |
2085 | |
1624 | void new (char *klass) |
2086 | void new (char *klass) |
1625 | PPCODE: |
2087 | PPCODE: |
1626 | { |
2088 | { |
1627 | SV *pv = NEWSV (0, sizeof (JSON)); |
2089 | SV *pv = NEWSV (0, sizeof (JSON)); |
1628 | SvPOK_only (pv); |
2090 | SvPOK_only (pv); |
1629 | Zero (SvPVX (pv), 1, JSON); |
2091 | json_init ((JSON *)SvPVX (pv)); |
1630 | ((JSON *)SvPVX (pv))->flags = F_DEFAULT; |
|
|
1631 | XPUSHs (sv_2mortal (sv_bless ( |
2092 | XPUSHs (sv_2mortal (sv_bless ( |
1632 | newRV_noinc (pv), |
2093 | newRV_noinc (pv), |
1633 | strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1) |
2094 | strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1) |
1634 | ))); |
2095 | ))); |
1635 | } |
2096 | } |
|
|
2097 | |
|
|
2098 | void boolean_values (JSON *self, SV *v_false = 0, SV *v_true = 0) |
|
|
2099 | PPCODE: |
|
|
2100 | self->v_false = newSVsv (v_false); |
|
|
2101 | self->v_true = newSVsv (v_true); |
|
|
2102 | XPUSHs (ST (0)); |
|
|
2103 | |
|
|
2104 | void get_boolean_values (JSON *self) |
|
|
2105 | PPCODE: |
|
|
2106 | if (self->v_false && self->v_true) |
|
|
2107 | { |
|
|
2108 | EXTEND (SP, 2); |
|
|
2109 | PUSHs (self->v_false); |
|
|
2110 | PUSHs (self->v_true); |
|
|
2111 | } |
1636 | |
2112 | |
1637 | void ascii (JSON *self, int enable = 1) |
2113 | void ascii (JSON *self, int enable = 1) |
1638 | ALIAS: |
2114 | ALIAS: |
1639 | ascii = F_ASCII |
2115 | ascii = F_ASCII |
1640 | latin1 = F_LATIN1 |
2116 | latin1 = F_LATIN1 |
… | |
… | |
1647 | allow_nonref = F_ALLOW_NONREF |
2123 | allow_nonref = F_ALLOW_NONREF |
1648 | shrink = F_SHRINK |
2124 | shrink = F_SHRINK |
1649 | allow_blessed = F_ALLOW_BLESSED |
2125 | allow_blessed = F_ALLOW_BLESSED |
1650 | convert_blessed = F_CONV_BLESSED |
2126 | convert_blessed = F_CONV_BLESSED |
1651 | relaxed = F_RELAXED |
2127 | relaxed = F_RELAXED |
|
|
2128 | allow_unknown = F_ALLOW_UNKNOWN |
|
|
2129 | allow_tags = F_ALLOW_TAGS |
1652 | PPCODE: |
2130 | PPCODE: |
1653 | { |
2131 | { |
1654 | if (enable) |
2132 | if (enable) |
1655 | self->flags |= ix; |
2133 | self->flags |= ix; |
1656 | else |
2134 | else |
… | |
… | |
1671 | get_allow_nonref = F_ALLOW_NONREF |
2149 | get_allow_nonref = F_ALLOW_NONREF |
1672 | get_shrink = F_SHRINK |
2150 | get_shrink = F_SHRINK |
1673 | get_allow_blessed = F_ALLOW_BLESSED |
2151 | get_allow_blessed = F_ALLOW_BLESSED |
1674 | get_convert_blessed = F_CONV_BLESSED |
2152 | get_convert_blessed = F_CONV_BLESSED |
1675 | get_relaxed = F_RELAXED |
2153 | get_relaxed = F_RELAXED |
|
|
2154 | get_allow_unknown = F_ALLOW_UNKNOWN |
|
|
2155 | get_allow_tags = F_ALLOW_TAGS |
1676 | PPCODE: |
2156 | PPCODE: |
1677 | XPUSHs (boolSV (self->flags & ix)); |
2157 | XPUSHs (boolSV (self->flags & ix)); |
1678 | |
2158 | |
1679 | void max_depth (JSON *self, UV max_depth = 0x80000000UL) |
2159 | void max_depth (JSON *self, U32 max_depth = 0x80000000UL) |
1680 | PPCODE: |
2160 | PPCODE: |
1681 | { |
2161 | self->max_depth = max_depth; |
1682 | UV log2 = 0; |
|
|
1683 | |
|
|
1684 | if (max_depth > 0x80000000UL) max_depth = 0x80000000UL; |
|
|
1685 | |
|
|
1686 | while ((1UL << log2) < max_depth) |
|
|
1687 | ++log2; |
|
|
1688 | |
|
|
1689 | self->flags = self->flags & ~F_MAXDEPTH | (log2 << S_MAXDEPTH); |
|
|
1690 | |
|
|
1691 | XPUSHs (ST (0)); |
2162 | XPUSHs (ST (0)); |
1692 | } |
|
|
1693 | |
2163 | |
1694 | U32 get_max_depth (JSON *self) |
2164 | U32 get_max_depth (JSON *self) |
1695 | CODE: |
2165 | CODE: |
1696 | RETVAL = DEC_DEPTH (self->flags); |
2166 | RETVAL = self->max_depth; |
1697 | OUTPUT: |
2167 | OUTPUT: |
1698 | RETVAL |
2168 | RETVAL |
1699 | |
2169 | |
1700 | void max_size (JSON *self, UV max_size = 0) |
2170 | void max_size (JSON *self, U32 max_size = 0) |
1701 | PPCODE: |
2171 | PPCODE: |
1702 | { |
2172 | self->max_size = max_size; |
1703 | UV log2 = 0; |
|
|
1704 | |
|
|
1705 | if (max_size > 0x80000000UL) max_size = 0x80000000UL; |
|
|
1706 | if (max_size == 1) max_size = 2; |
|
|
1707 | |
|
|
1708 | while ((1UL << log2) < max_size) |
|
|
1709 | ++log2; |
|
|
1710 | |
|
|
1711 | self->flags = self->flags & ~F_MAXSIZE | (log2 << S_MAXSIZE); |
|
|
1712 | |
|
|
1713 | XPUSHs (ST (0)); |
2173 | XPUSHs (ST (0)); |
1714 | } |
|
|
1715 | |
2174 | |
1716 | int get_max_size (JSON *self) |
2175 | int get_max_size (JSON *self) |
1717 | CODE: |
2176 | CODE: |
1718 | RETVAL = DEC_SIZE (self->flags); |
2177 | RETVAL = self->max_size; |
1719 | OUTPUT: |
2178 | OUTPUT: |
1720 | RETVAL |
2179 | RETVAL |
1721 | |
2180 | |
1722 | void filter_json_object (JSON *self, SV *cb = &PL_sv_undef) |
2181 | void filter_json_object (JSON *self, SV *cb = &PL_sv_undef) |
1723 | PPCODE: |
2182 | PPCODE: |
… | |
… | |
1729 | } |
2188 | } |
1730 | |
2189 | |
1731 | void filter_json_single_key_object (JSON *self, SV *key, SV *cb = &PL_sv_undef) |
2190 | void filter_json_single_key_object (JSON *self, SV *key, SV *cb = &PL_sv_undef) |
1732 | PPCODE: |
2191 | PPCODE: |
1733 | { |
2192 | { |
1734 | if (!self->cb_sk_object) |
2193 | if (!self->cb_sk_object) |
1735 | self->cb_sk_object = newHV (); |
2194 | self->cb_sk_object = newHV (); |
1736 | |
2195 | |
1737 | if (SvOK (cb)) |
2196 | if (SvOK (cb)) |
1738 | hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0); |
2197 | hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0); |
1739 | else |
2198 | else |
… | |
… | |
1750 | XPUSHs (ST (0)); |
2209 | XPUSHs (ST (0)); |
1751 | } |
2210 | } |
1752 | |
2211 | |
1753 | void encode (JSON *self, SV *scalar) |
2212 | void encode (JSON *self, SV *scalar) |
1754 | PPCODE: |
2213 | PPCODE: |
1755 | XPUSHs (encode_json (scalar, self)); |
2214 | PUTBACK; scalar = encode_json (scalar, self); SPAGAIN; |
|
|
2215 | XPUSHs (scalar); |
1756 | |
2216 | |
1757 | void decode (JSON *self, SV *jsonstr) |
2217 | void decode (JSON *self, SV *jsonstr) |
1758 | PPCODE: |
2218 | PPCODE: |
1759 | XPUSHs (decode_json (jsonstr, self, 0)); |
2219 | PUTBACK; jsonstr = decode_json (jsonstr, self, 0); SPAGAIN; |
|
|
2220 | XPUSHs (jsonstr); |
1760 | |
2221 | |
1761 | void decode_prefix (JSON *self, SV *jsonstr) |
2222 | void decode_prefix (JSON *self, SV *jsonstr) |
1762 | PPCODE: |
2223 | PPCODE: |
1763 | { |
2224 | { |
|
|
2225 | SV *sv; |
1764 | STRLEN offset; |
2226 | STRLEN offset; |
|
|
2227 | PUTBACK; sv = decode_json (jsonstr, self, &offset); SPAGAIN; |
1765 | EXTEND (SP, 2); |
2228 | EXTEND (SP, 2); |
1766 | PUSHs (decode_json (jsonstr, self, &offset)); |
2229 | PUSHs (sv); |
1767 | PUSHs (sv_2mortal (newSVuv (offset))); |
2230 | PUSHs (sv_2mortal (newSVuv (ptr_to_index (jsonstr, SvPV_nolen (jsonstr) + offset)))); |
1768 | } |
2231 | } |
1769 | |
2232 | |
1770 | void incr_parse (JSON *self, SV *jsonstr = 0) |
2233 | void incr_parse (JSON *self, SV *jsonstr = 0) |
1771 | PPCODE: |
2234 | PPCODE: |
1772 | { |
2235 | { |
1773 | if (!self->incr_text) |
2236 | if (!self->incr_text) |
1774 | self->incr_text = newSVpvn ("", 0); |
2237 | self->incr_text = newSVpvn ("", 0); |
|
|
2238 | |
|
|
2239 | /* if utf8-ness doesn't match the decoder, need to upgrade/downgrade */ |
|
|
2240 | if (!DECODE_WANTS_OCTETS (self) == !SvUTF8 (self->incr_text)) |
|
|
2241 | if (DECODE_WANTS_OCTETS (self)) |
|
|
2242 | { |
|
|
2243 | if (self->incr_pos) |
|
|
2244 | self->incr_pos = utf8_length ((U8 *)SvPVX (self->incr_text), |
|
|
2245 | (U8 *)SvPVX (self->incr_text) + self->incr_pos); |
|
|
2246 | |
|
|
2247 | sv_utf8_downgrade (self->incr_text, 0); |
|
|
2248 | } |
|
|
2249 | else |
|
|
2250 | { |
|
|
2251 | sv_utf8_upgrade (self->incr_text); |
|
|
2252 | |
|
|
2253 | if (self->incr_pos) |
|
|
2254 | self->incr_pos = utf8_hop ((U8 *)SvPVX (self->incr_text), self->incr_pos) |
|
|
2255 | - (U8 *)SvPVX (self->incr_text); |
|
|
2256 | } |
1775 | |
2257 | |
1776 | // append data, if any |
2258 | // append data, if any |
1777 | if (jsonstr) |
2259 | if (jsonstr) |
1778 | { |
2260 | { |
|
|
2261 | /* make sure both strings have same encoding */ |
1779 | if (SvUTF8 (jsonstr) && !SvUTF8 (self->incr_text)) |
2262 | if (SvUTF8 (jsonstr) != SvUTF8 (self->incr_text)) |
|
|
2263 | if (SvUTF8 (jsonstr)) |
|
|
2264 | sv_utf8_downgrade (jsonstr, 0); |
1780 | { |
2265 | else |
1781 | /* utf-8-ness differs, need to upgrade */ |
|
|
1782 | sv_utf8_upgrade (self->incr_text); |
2266 | sv_utf8_upgrade (jsonstr); |
1783 | |
2267 | |
1784 | if (self->incr_pos) |
2268 | /* and then just blindly append */ |
1785 | self->incr_pos = utf8_hop ((U8 *)SvPVX (self->incr_text), self->incr_pos) |
|
|
1786 | - (U8 *)SvPVX (self->incr_text); |
|
|
1787 | } |
|
|
1788 | |
|
|
1789 | { |
2269 | { |
1790 | STRLEN len; |
2270 | STRLEN len; |
1791 | const char *str = SvPV (jsonstr, len); |
2271 | const char *str = SvPV (jsonstr, len); |
1792 | SvGROW (self->incr_text, SvCUR (self->incr_text) + len + 1); |
2272 | STRLEN cur = SvCUR (self->incr_text); |
|
|
2273 | |
|
|
2274 | if (SvLEN (self->incr_text) - cur <= len) |
|
|
2275 | json_sv_grow (self->incr_text, cur, len); |
|
|
2276 | |
1793 | Move (str, SvEND (self->incr_text), len, char); |
2277 | Move (str, SvEND (self->incr_text), len, char); |
1794 | SvCUR_set (self->incr_text, SvCUR (self->incr_text) + len); |
2278 | SvCUR_set (self->incr_text, SvCUR (self->incr_text) + len); |
1795 | *SvEND (self->incr_text) = 0; // this should basically be a nop, too, but make sure it's there |
2279 | *SvEND (self->incr_text) = 0; // this should basically be a nop, too, but make sure it's there |
1796 | } |
2280 | } |
1797 | } |
2281 | } |
1798 | |
2282 | |
1799 | if (GIMME_V != G_VOID) |
2283 | if (GIMME_V != G_VOID) |
1800 | do |
2284 | do |
1801 | { |
2285 | { |
|
|
2286 | SV *sv; |
1802 | STRLEN offset; |
2287 | STRLEN offset; |
1803 | |
2288 | |
1804 | incr_parse (self); |
|
|
1805 | |
|
|
1806 | if (!INCR_DONE (self)) |
2289 | if (!INCR_DONE (self)) |
|
|
2290 | { |
|
|
2291 | incr_parse (self); |
|
|
2292 | |
|
|
2293 | if (self->incr_pos > self->max_size && self->max_size) |
|
|
2294 | croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu", |
|
|
2295 | (unsigned long)self->incr_pos, (unsigned long)self->max_size); |
|
|
2296 | |
|
|
2297 | if (!INCR_DONE (self)) |
|
|
2298 | { |
|
|
2299 | // as an optimisation, do not accumulate white space in the incr buffer |
|
|
2300 | if (self->incr_mode == INCR_M_WS && self->incr_pos) |
|
|
2301 | { |
|
|
2302 | self->incr_pos = 0; |
|
|
2303 | SvCUR_set (self->incr_text, 0); |
|
|
2304 | } |
|
|
2305 | |
1807 | break; |
2306 | break; |
|
|
2307 | } |
|
|
2308 | } |
1808 | |
2309 | |
1809 | XPUSHs (decode_json (self->incr_text, self, &offset)); |
2310 | PUTBACK; sv = decode_json (self->incr_text, self, &offset); SPAGAIN; |
|
|
2311 | XPUSHs (sv); |
1810 | |
2312 | |
1811 | sv_chop (self->incr_text, SvPV_nolen (self->incr_text) + offset); |
|
|
1812 | self->incr_pos -= offset; |
2313 | self->incr_pos -= offset; |
1813 | self->incr_nest = 0; |
2314 | self->incr_nest = 0; |
1814 | self->incr_mode = 0; |
2315 | self->incr_mode = 0; |
|
|
2316 | |
|
|
2317 | sv_chop (self->incr_text, SvPVX (self->incr_text) + offset); |
1815 | } |
2318 | } |
1816 | while (GIMME_V == G_ARRAY); |
2319 | while (GIMME_V == G_ARRAY); |
1817 | } |
2320 | } |
1818 | |
2321 | |
1819 | SV *incr_text (JSON *self) |
2322 | SV *incr_text (JSON *self) |
1820 | ATTRS: lvalue |
2323 | ATTRS: lvalue |
1821 | CODE: |
2324 | CODE: |
1822 | { |
2325 | { |
1823 | if (self->incr_pos) |
2326 | if (self->incr_pos) |
1824 | croak ("incr_text can only be called after a successful incr_parse call in scalar context %d", self->incr_pos);//D |
2327 | croak ("incr_text can not be called when the incremental parser already started parsing"); |
1825 | |
2328 | |
1826 | RETVAL = self->incr_text ? SvREFCNT_inc (self->incr_text) : &PL_sv_undef; |
2329 | RETVAL = self->incr_text ? SvREFCNT_inc (self->incr_text) : &PL_sv_undef; |
1827 | } |
2330 | } |
1828 | OUTPUT: |
2331 | OUTPUT: |
1829 | RETVAL |
2332 | RETVAL |
1830 | |
2333 | |
|
|
2334 | void incr_skip (JSON *self) |
|
|
2335 | CODE: |
|
|
2336 | { |
|
|
2337 | if (self->incr_pos) |
|
|
2338 | { |
|
|
2339 | sv_chop (self->incr_text, SvPV_nolen (self->incr_text) + self->incr_pos); |
|
|
2340 | self->incr_pos = 0; |
|
|
2341 | self->incr_nest = 0; |
|
|
2342 | self->incr_mode = 0; |
|
|
2343 | } |
|
|
2344 | } |
|
|
2345 | |
|
|
2346 | void incr_reset (JSON *self) |
|
|
2347 | CODE: |
|
|
2348 | { |
|
|
2349 | SvREFCNT_dec (self->incr_text); |
|
|
2350 | self->incr_text = 0; |
|
|
2351 | self->incr_pos = 0; |
|
|
2352 | self->incr_nest = 0; |
|
|
2353 | self->incr_mode = 0; |
|
|
2354 | } |
|
|
2355 | |
1831 | void DESTROY (JSON *self) |
2356 | void DESTROY (JSON *self) |
1832 | CODE: |
2357 | CODE: |
|
|
2358 | SvREFCNT_dec (self->v_false); |
|
|
2359 | SvREFCNT_dec (self->v_true); |
1833 | SvREFCNT_dec (self->cb_sk_object); |
2360 | SvREFCNT_dec (self->cb_sk_object); |
1834 | SvREFCNT_dec (self->cb_object); |
2361 | SvREFCNT_dec (self->cb_object); |
1835 | SvREFCNT_dec (self->incr_text); |
2362 | SvREFCNT_dec (self->incr_text); |
1836 | |
2363 | |
1837 | PROTOTYPES: ENABLE |
2364 | PROTOTYPES: ENABLE |
1838 | |
2365 | |
1839 | void encode_json (SV *scalar) |
2366 | void encode_json (SV *scalar) |
1840 | ALIAS: |
|
|
1841 | to_json_ = 0 |
|
|
1842 | encode_json = F_UTF8 |
|
|
1843 | PPCODE: |
2367 | PPCODE: |
1844 | { |
2368 | { |
1845 | JSON json = { F_DEFAULT | ix }; |
2369 | JSON json; |
1846 | XPUSHs (encode_json (scalar, &json)); |
2370 | json_init (&json); |
|
|
2371 | json.flags |= F_UTF8; |
|
|
2372 | PUTBACK; scalar = encode_json (scalar, &json); SPAGAIN; |
|
|
2373 | XPUSHs (scalar); |
1847 | } |
2374 | } |
1848 | |
2375 | |
1849 | void decode_json (SV *jsonstr) |
2376 | void decode_json (SV *jsonstr) |
1850 | ALIAS: |
|
|
1851 | from_json_ = 0 |
|
|
1852 | decode_json = F_UTF8 |
|
|
1853 | PPCODE: |
2377 | PPCODE: |
1854 | { |
2378 | { |
1855 | JSON json = { F_DEFAULT | ix }; |
2379 | JSON json; |
1856 | XPUSHs (decode_json (jsonstr, &json, 0)); |
2380 | json_init (&json); |
|
|
2381 | json.flags |= F_UTF8; |
|
|
2382 | PUTBACK; jsonstr = decode_json (jsonstr, &json, 0); SPAGAIN; |
|
|
2383 | XPUSHs (jsonstr); |
1857 | } |
2384 | } |
1858 | |
2385 | |
1859 | |
|
|