1 | #include "EXTERN.h" |
1 | #include "EXTERN.h" |
2 | #include "perl.h" |
2 | #include "perl.h" |
3 | #include "XSUB.h" |
3 | #include "XSUB.h" |
4 | |
4 | |
5 | #include "assert.h" |
5 | #include <assert.h> |
6 | #include "string.h" |
6 | #include <string.h> |
7 | #include "stdlib.h" |
7 | #include <stdlib.h> |
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8 | #include <stdio.h> |
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9 | #include <float.h> |
8 | |
10 | |
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11 | #if defined(__BORLANDC__) || defined(_MSC_VER) |
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12 | # define snprintf _snprintf // C compilers have this in stdio.h |
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13 | #endif |
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14 | |
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15 | // some old perls do not have this, try to make it work, no |
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16 | // guarentees, though. if it breaks, you get to keep the pieces. |
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17 | #ifndef UTF8_MAXBYTES |
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18 | # define UTF8_MAXBYTES 13 |
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19 | #endif |
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20 | |
9 | #define F_ASCII 0x00000001UL |
21 | #define F_ASCII 0x00000001UL |
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22 | #define F_LATIN1 0x00000002UL |
10 | #define F_UTF8 0x00000002UL |
23 | #define F_UTF8 0x00000004UL |
11 | #define F_INDENT 0x00000004UL |
24 | #define F_INDENT 0x00000008UL |
12 | #define F_CANONICAL 0x00000008UL |
25 | #define F_CANONICAL 0x00000010UL |
13 | #define F_SPACE_BEFORE 0x00000010UL |
26 | #define F_SPACE_BEFORE 0x00000020UL |
14 | #define F_SPACE_AFTER 0x00000020UL |
27 | #define F_SPACE_AFTER 0x00000040UL |
15 | #define F_ALLOW_NONREF 0x00000080UL |
28 | #define F_ALLOW_NONREF 0x00000100UL |
16 | #define F_SHRINK 0x00000100UL |
29 | #define F_SHRINK 0x00000200UL |
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30 | #define F_ALLOW_BLESSED 0x00000400UL |
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31 | #define F_CONV_BLESSED 0x00000800UL |
17 | #define F_MAXDEPTH 0xf8000000UL |
32 | #define F_MAXDEPTH 0xf8000000UL |
18 | #define S_MAXDEPTH 27 |
33 | #define S_MAXDEPTH 27 |
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34 | #define F_MAXSIZE 0x01f00000UL |
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35 | #define S_MAXSIZE 20 |
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36 | #define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing |
19 | |
37 | |
20 | #define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH)) |
38 | #define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH)) |
21 | |
39 | #define DEC_SIZE(flags) (1UL << ((flags & F_MAXSIZE ) >> S_MAXSIZE )) |
22 | // F_SELFCONVERT? <=> to_json/toJson |
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23 | // F_BLESSED? <=> { $__class__$ => } |
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24 | |
40 | |
25 | #define F_PRETTY F_INDENT | F_SPACE_BEFORE | F_SPACE_AFTER |
41 | #define F_PRETTY F_INDENT | F_SPACE_BEFORE | F_SPACE_AFTER |
26 | #define F_DEFAULT (13UL << S_MAXDEPTH) |
42 | #define F_DEFAULT (9UL << S_MAXDEPTH) |
27 | |
43 | |
28 | #define INIT_SIZE 32 // initial scalar size to be allocated |
44 | #define INIT_SIZE 32 // initial scalar size to be allocated |
29 | #define INDENT_STEP 3 // spaces per indentation level |
45 | #define INDENT_STEP 3 // spaces per indentation level |
30 | |
46 | |
31 | #define UTF8_MAX_LEN 11 // for perls UTF-X: max. number of octets per character |
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32 | #define SHORT_STRING_LEN 512 // special-case strings of up to this size |
47 | #define SHORT_STRING_LEN 16384 // special-case strings of up to this size |
33 | |
48 | |
34 | #define SB do { |
49 | #define SB do { |
35 | #define SE } while (0) |
50 | #define SE } while (0) |
36 | |
51 | |
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52 | #if __GNUC__ >= 3 |
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53 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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54 | # define inline inline |
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55 | #else |
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56 | # define expect(expr,value) (expr) |
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57 | # define inline static |
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58 | #endif |
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59 | |
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60 | #define expect_false(expr) expect ((expr) != 0, 0) |
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61 | #define expect_true(expr) expect ((expr) != 0, 1) |
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62 | |
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63 | #ifdef USE_ITHREADS |
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64 | # define JSON_SLOW 1 |
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65 | #else |
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66 | # define JSON_SLOW 1 |
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67 | #endif |
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68 | |
37 | static HV *json_stash; // JSON::XS:: |
69 | static HV *json_stash, *json_boolean_stash; // JSON::XS:: |
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70 | static SV *json_true, *json_false; |
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71 | |
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72 | typedef struct { |
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73 | U32 flags; |
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74 | SV *cb_object; |
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75 | HV *cb_sk_object; |
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76 | } JSON; |
38 | |
77 | |
39 | ///////////////////////////////////////////////////////////////////////////// |
78 | ///////////////////////////////////////////////////////////////////////////// |
40 | // utility functions |
79 | // utility functions |
41 | |
80 | |
42 | static UV * |
81 | inline void |
43 | SvJSON (SV *sv) |
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44 | { |
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45 | if (!(SvROK (sv) && SvOBJECT (SvRV (sv)) && SvSTASH (SvRV (sv)) == json_stash)) |
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46 | croak ("object is not of type JSON::XS"); |
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47 | |
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48 | return &SvUVX (SvRV (sv)); |
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49 | } |
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50 | |
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51 | static void |
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52 | shrink (SV *sv) |
82 | shrink (SV *sv) |
53 | { |
83 | { |
54 | sv_utf8_downgrade (sv, 1); |
84 | sv_utf8_downgrade (sv, 1); |
55 | if (SvLEN (sv) > SvCUR (sv) + 1) |
85 | if (SvLEN (sv) > SvCUR (sv) + 1) |
56 | { |
86 | { |
… | |
… | |
65 | // decode an utf-8 character and return it, or (UV)-1 in |
95 | // decode an utf-8 character and return it, or (UV)-1 in |
66 | // case of an error. |
96 | // case of an error. |
67 | // we special-case "safe" characters from U+80 .. U+7FF, |
97 | // we special-case "safe" characters from U+80 .. U+7FF, |
68 | // but use the very good perl function to parse anything else. |
98 | // but use the very good perl function to parse anything else. |
69 | // note that we never call this function for a ascii codepoints |
99 | // note that we never call this function for a ascii codepoints |
70 | static UV |
100 | inline UV |
71 | decode_utf8 (unsigned char *s, STRLEN len, STRLEN *clen) |
101 | decode_utf8 (unsigned char *s, STRLEN len, STRLEN *clen) |
72 | { |
102 | { |
73 | if (s[0] > 0xdf || s[0] < 0xc2) |
103 | if (expect_false (s[0] > 0xdf || s[0] < 0xc2)) |
74 | return utf8n_to_uvuni (s, len, clen, UTF8_CHECK_ONLY); |
104 | return utf8n_to_uvuni (s, len, clen, UTF8_CHECK_ONLY); |
75 | else if (len > 1 && s[1] >= 0x80 && s[1] <= 0xbf) |
105 | else if (len > 1 && s[1] >= 0x80 && s[1] <= 0xbf) |
76 | { |
106 | { |
77 | *clen = 2; |
107 | *clen = 2; |
78 | return ((s[0] & 0x1f) << 6) | (s[1] & 0x3f); |
108 | return ((s[0] & 0x1f) << 6) | (s[1] & 0x3f); |
79 | } |
109 | } |
80 | else |
110 | else |
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111 | { |
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112 | *clen = (STRLEN)-1; |
81 | return (UV)-1; |
113 | return (UV)-1; |
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114 | } |
82 | } |
115 | } |
83 | |
116 | |
84 | ///////////////////////////////////////////////////////////////////////////// |
117 | ///////////////////////////////////////////////////////////////////////////// |
85 | // encoder |
118 | // encoder |
86 | |
119 | |
… | |
… | |
88 | typedef struct |
121 | typedef struct |
89 | { |
122 | { |
90 | char *cur; // SvPVX (sv) + current output position |
123 | char *cur; // SvPVX (sv) + current output position |
91 | char *end; // SvEND (sv) |
124 | char *end; // SvEND (sv) |
92 | SV *sv; // result scalar |
125 | SV *sv; // result scalar |
93 | U32 flags; // F_* |
126 | JSON json; |
94 | U32 indent; // indentation level |
127 | U32 indent; // indentation level |
95 | U32 maxdepth; // max. indentation/recursion level |
128 | U32 maxdepth; // max. indentation/recursion level |
96 | } enc_t; |
129 | } enc_t; |
97 | |
130 | |
98 | static void |
131 | inline void |
99 | need (enc_t *enc, STRLEN len) |
132 | need (enc_t *enc, STRLEN len) |
100 | { |
133 | { |
101 | if (enc->cur + len >= enc->end) |
134 | if (expect_false (enc->cur + len >= enc->end)) |
102 | { |
135 | { |
103 | STRLEN cur = enc->cur - SvPVX (enc->sv); |
136 | STRLEN cur = enc->cur - SvPVX (enc->sv); |
104 | SvGROW (enc->sv, cur + len + 1); |
137 | SvGROW (enc->sv, cur + len + 1); |
105 | enc->cur = SvPVX (enc->sv) + cur; |
138 | enc->cur = SvPVX (enc->sv) + cur; |
106 | enc->end = SvPVX (enc->sv) + SvLEN (enc->sv); |
139 | enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1; |
107 | } |
140 | } |
108 | } |
141 | } |
109 | |
142 | |
110 | static void |
143 | inline void |
111 | encode_ch (enc_t *enc, char ch) |
144 | encode_ch (enc_t *enc, char ch) |
112 | { |
145 | { |
113 | need (enc, 1); |
146 | need (enc, 1); |
114 | *enc->cur++ = ch; |
147 | *enc->cur++ = ch; |
115 | } |
148 | } |
… | |
… | |
123 | |
156 | |
124 | while (str < end) |
157 | while (str < end) |
125 | { |
158 | { |
126 | unsigned char ch = *(unsigned char *)str; |
159 | unsigned char ch = *(unsigned char *)str; |
127 | |
160 | |
128 | if (ch >= 0x20 && ch < 0x80) // most common case |
161 | if (expect_true (ch >= 0x20 && ch < 0x80)) // most common case |
129 | { |
162 | { |
130 | if (ch == '"') // but with slow exceptions |
163 | if (expect_false (ch == '"')) // but with slow exceptions |
131 | { |
164 | { |
132 | need (enc, len += 1); |
165 | need (enc, len += 1); |
133 | *enc->cur++ = '\\'; |
166 | *enc->cur++ = '\\'; |
134 | *enc->cur++ = '"'; |
167 | *enc->cur++ = '"'; |
135 | } |
168 | } |
136 | else if (ch == '\\') |
169 | else if (expect_false (ch == '\\')) |
137 | { |
170 | { |
138 | need (enc, len += 1); |
171 | need (enc, len += 1); |
139 | *enc->cur++ = '\\'; |
172 | *enc->cur++ = '\\'; |
140 | *enc->cur++ = '\\'; |
173 | *enc->cur++ = '\\'; |
141 | } |
174 | } |
… | |
… | |
159 | STRLEN clen; |
192 | STRLEN clen; |
160 | UV uch; |
193 | UV uch; |
161 | |
194 | |
162 | if (is_utf8) |
195 | if (is_utf8) |
163 | { |
196 | { |
164 | //uch = utf8n_to_uvuni (str, end - str, &clen, UTF8_CHECK_ONLY); |
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165 | uch = decode_utf8 (str, end - str, &clen); |
197 | uch = decode_utf8 (str, end - str, &clen); |
166 | if (clen == (STRLEN)-1) |
198 | if (clen == (STRLEN)-1) |
167 | croak ("malformed or illegal unicode character in string [%.11s], cannot convert to JSON", str); |
199 | croak ("malformed or illegal unicode character in string [%.11s], cannot convert to JSON", str); |
168 | } |
200 | } |
169 | else |
201 | else |
… | |
… | |
173 | } |
205 | } |
174 | |
206 | |
175 | if (uch > 0x10FFFFUL) |
207 | if (uch > 0x10FFFFUL) |
176 | croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch); |
208 | croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch); |
177 | |
209 | |
178 | if (uch < 0x80 || enc->flags & F_ASCII) |
210 | if (uch < 0x80 || enc->json.flags & F_ASCII || (enc->json.flags & F_LATIN1 && uch > 0xFF)) |
179 | { |
211 | { |
180 | if (uch > 0xFFFFUL) |
212 | if (uch > 0xFFFFUL) |
181 | { |
213 | { |
182 | need (enc, len += 11); |
214 | need (enc, len += 11); |
183 | sprintf (enc->cur, "\\u%04x\\u%04x", |
215 | sprintf (enc->cur, "\\u%04x\\u%04x", |
… | |
… | |
197 | *enc->cur++ = hexdigit [(uch >> 0) & 15]; |
229 | *enc->cur++ = hexdigit [(uch >> 0) & 15]; |
198 | } |
230 | } |
199 | |
231 | |
200 | str += clen; |
232 | str += clen; |
201 | } |
233 | } |
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234 | else if (enc->json.flags & F_LATIN1) |
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235 | { |
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236 | *enc->cur++ = uch; |
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237 | str += clen; |
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238 | } |
202 | else if (is_utf8) |
239 | else if (is_utf8) |
203 | { |
240 | { |
204 | need (enc, len += clen); |
241 | need (enc, len += clen); |
205 | do |
242 | do |
206 | { |
243 | { |
… | |
… | |
208 | } |
245 | } |
209 | while (--clen); |
246 | while (--clen); |
210 | } |
247 | } |
211 | else |
248 | else |
212 | { |
249 | { |
213 | need (enc, len += UTF8_MAX_LEN - 1); // never more than 11 bytes needed |
250 | need (enc, len += UTF8_MAXBYTES - 1); // never more than 11 bytes needed |
214 | enc->cur = uvuni_to_utf8_flags (enc->cur, uch, 0); |
251 | enc->cur = uvuni_to_utf8_flags (enc->cur, uch, 0); |
215 | ++str; |
252 | ++str; |
216 | } |
253 | } |
217 | } |
254 | } |
218 | } |
255 | } |
… | |
… | |
220 | |
257 | |
221 | --len; |
258 | --len; |
222 | } |
259 | } |
223 | } |
260 | } |
224 | |
261 | |
225 | static void |
262 | inline void |
226 | encode_indent (enc_t *enc) |
263 | encode_indent (enc_t *enc) |
227 | { |
264 | { |
228 | if (enc->flags & F_INDENT) |
265 | if (enc->json.flags & F_INDENT) |
229 | { |
266 | { |
230 | int spaces = enc->indent * INDENT_STEP; |
267 | int spaces = enc->indent * INDENT_STEP; |
231 | |
268 | |
232 | need (enc, spaces); |
269 | need (enc, spaces); |
233 | memset (enc->cur, ' ', spaces); |
270 | memset (enc->cur, ' ', spaces); |
234 | enc->cur += spaces; |
271 | enc->cur += spaces; |
235 | } |
272 | } |
236 | } |
273 | } |
237 | |
274 | |
238 | static void |
275 | inline void |
239 | encode_space (enc_t *enc) |
276 | encode_space (enc_t *enc) |
240 | { |
277 | { |
241 | need (enc, 1); |
278 | need (enc, 1); |
242 | encode_ch (enc, ' '); |
279 | encode_ch (enc, ' '); |
243 | } |
280 | } |
244 | |
281 | |
245 | static void |
282 | inline void |
246 | encode_nl (enc_t *enc) |
283 | encode_nl (enc_t *enc) |
247 | { |
284 | { |
248 | if (enc->flags & F_INDENT) |
285 | if (enc->json.flags & F_INDENT) |
249 | { |
286 | { |
250 | need (enc, 1); |
287 | need (enc, 1); |
251 | encode_ch (enc, '\n'); |
288 | encode_ch (enc, '\n'); |
252 | } |
289 | } |
253 | } |
290 | } |
254 | |
291 | |
255 | static void |
292 | inline void |
256 | encode_comma (enc_t *enc) |
293 | encode_comma (enc_t *enc) |
257 | { |
294 | { |
258 | encode_ch (enc, ','); |
295 | encode_ch (enc, ','); |
259 | |
296 | |
260 | if (enc->flags & F_INDENT) |
297 | if (enc->json.flags & F_INDENT) |
261 | encode_nl (enc); |
298 | encode_nl (enc); |
262 | else if (enc->flags & F_SPACE_AFTER) |
299 | else if (enc->json.flags & F_SPACE_AFTER) |
263 | encode_space (enc); |
300 | encode_space (enc); |
264 | } |
301 | } |
265 | |
302 | |
266 | static void encode_sv (enc_t *enc, SV *sv); |
303 | static void encode_sv (enc_t *enc, SV *sv); |
267 | |
304 | |
268 | static void |
305 | static void |
269 | encode_av (enc_t *enc, AV *av) |
306 | encode_av (enc_t *enc, AV *av) |
270 | { |
307 | { |
271 | int i, len = av_len (av); |
308 | int i, len = av_len (av); |
272 | |
309 | |
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310 | if (enc->indent >= enc->maxdepth) |
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311 | croak ("data structure too deep (hit recursion limit)"); |
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312 | |
273 | encode_ch (enc, '['); encode_nl (enc); |
313 | encode_ch (enc, '['); encode_nl (enc); |
274 | ++enc->indent; |
314 | ++enc->indent; |
275 | |
315 | |
276 | for (i = 0; i <= len; ++i) |
316 | for (i = 0; i <= len; ++i) |
277 | { |
317 | { |
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318 | SV **svp = av_fetch (av, i, 0); |
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319 | |
278 | encode_indent (enc); |
320 | encode_indent (enc); |
279 | encode_sv (enc, *av_fetch (av, i, 0)); |
321 | |
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322 | if (svp) |
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323 | encode_sv (enc, *svp); |
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324 | else |
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325 | encode_str (enc, "null", 4, 0); |
280 | |
326 | |
281 | if (i < len) |
327 | if (i < len) |
282 | encode_comma (enc); |
328 | encode_comma (enc); |
283 | } |
329 | } |
284 | |
330 | |
… | |
… | |
307 | else |
353 | else |
308 | encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he)); |
354 | encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he)); |
309 | |
355 | |
310 | encode_ch (enc, '"'); |
356 | encode_ch (enc, '"'); |
311 | |
357 | |
312 | if (enc->flags & F_SPACE_BEFORE) encode_space (enc); |
358 | if (enc->json.flags & F_SPACE_BEFORE) encode_space (enc); |
313 | encode_ch (enc, ':'); |
359 | encode_ch (enc, ':'); |
314 | if (enc->flags & F_SPACE_AFTER ) encode_space (enc); |
360 | if (enc->json.flags & F_SPACE_AFTER ) encode_space (enc); |
315 | encode_sv (enc, HeVAL (he)); |
361 | encode_sv (enc, HeVAL (he)); |
316 | } |
362 | } |
317 | |
363 | |
318 | // compare hash entries, used when all keys are bytestrings |
364 | // compare hash entries, used when all keys are bytestrings |
319 | static int |
365 | static int |
… | |
… | |
342 | |
388 | |
343 | static void |
389 | static void |
344 | encode_hv (enc_t *enc, HV *hv) |
390 | encode_hv (enc_t *enc, HV *hv) |
345 | { |
391 | { |
346 | int count, i; |
392 | int count, i; |
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393 | |
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394 | if (enc->indent >= enc->maxdepth) |
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395 | croak ("data structure too deep (hit recursion limit)"); |
347 | |
396 | |
348 | encode_ch (enc, '{'); encode_nl (enc); ++enc->indent; |
397 | encode_ch (enc, '{'); encode_nl (enc); ++enc->indent; |
349 | |
398 | |
350 | if ((count = hv_iterinit (hv))) |
399 | if ((count = hv_iterinit (hv))) |
351 | { |
400 | { |
352 | // for canonical output we have to sort by keys first |
401 | // for canonical output we have to sort by keys first |
353 | // actually, this is mostly due to the stupid so-called |
402 | // actually, this is mostly due to the stupid so-called |
354 | // security workaround added somewhere in 5.8.x. |
403 | // security workaround added somewhere in 5.8.x. |
355 | // that randomises hash orderings |
404 | // that randomises hash orderings |
356 | if (enc->flags & F_CANONICAL) |
405 | if (enc->json.flags & F_CANONICAL) |
357 | { |
406 | { |
358 | HE *he, *hes [count]; // if your compiler dies here, you need to enable C99 mode |
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359 | int fast = 1; |
407 | int fast = 1; |
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408 | HE *he; |
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409 | #if defined(__BORLANDC__) || defined(_MSC_VER) |
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410 | HE **hes = _alloca (count * sizeof (HE)); |
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411 | #else |
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412 | HE *hes [count]; // if your compiler dies here, you need to enable C99 mode |
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413 | #endif |
360 | |
414 | |
361 | i = 0; |
415 | i = 0; |
362 | while ((he = hv_iternext (hv))) |
416 | while ((he = hv_iternext (hv))) |
363 | { |
417 | { |
364 | hes [i++] = he; |
418 | hes [i++] = he; |
… | |
… | |
399 | |
453 | |
400 | encode_nl (enc); |
454 | encode_nl (enc); |
401 | } |
455 | } |
402 | else |
456 | else |
403 | { |
457 | { |
404 | SV *sv; |
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405 | HE *he = hv_iternext (hv); |
458 | HE *he = hv_iternext (hv); |
406 | |
459 | |
407 | for (;;) |
460 | for (;;) |
408 | { |
461 | { |
409 | encode_indent (enc); |
462 | encode_indent (enc); |
… | |
… | |
418 | encode_nl (enc); |
471 | encode_nl (enc); |
419 | } |
472 | } |
420 | } |
473 | } |
421 | |
474 | |
422 | --enc->indent; encode_indent (enc); encode_ch (enc, '}'); |
475 | --enc->indent; encode_indent (enc); encode_ch (enc, '}'); |
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476 | } |
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477 | |
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478 | // encode objects, arrays and special \0=false and \1=true values. |
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479 | static void |
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480 | encode_rv (enc_t *enc, SV *sv) |
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481 | { |
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482 | svtype svt; |
|
|
483 | |
|
|
484 | SvGETMAGIC (sv); |
|
|
485 | svt = SvTYPE (sv); |
|
|
486 | |
|
|
487 | if (expect_false (SvOBJECT (sv))) |
|
|
488 | { |
|
|
489 | HV *stash = !JSON_SLOW || json_boolean_stash |
|
|
490 | ? json_boolean_stash |
|
|
491 | : gv_stashpv ("JSON::XS::Boolean", 1); |
|
|
492 | |
|
|
493 | if (SvSTASH (sv) == stash) |
|
|
494 | { |
|
|
495 | if (SvIV (sv)) |
|
|
496 | encode_str (enc, "true", 4, 0); |
|
|
497 | else |
|
|
498 | encode_str (enc, "false", 5, 0); |
|
|
499 | } |
|
|
500 | else |
|
|
501 | { |
|
|
502 | #if 0 |
|
|
503 | if (0 && sv_derived_from (rv, "JSON::Literal")) |
|
|
504 | { |
|
|
505 | // not yet |
|
|
506 | } |
|
|
507 | #endif |
|
|
508 | if (enc->json.flags & F_CONV_BLESSED) |
|
|
509 | { |
|
|
510 | // we re-bless the reference to get overload and other niceties right |
|
|
511 | GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 0); |
|
|
512 | |
|
|
513 | if (to_json) |
|
|
514 | { |
|
|
515 | int count; |
|
|
516 | dSP; |
|
|
517 | |
|
|
518 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
519 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv))); |
|
|
520 | |
|
|
521 | // calling with G_SCALAR ensures that we always get a 1 return value |
|
|
522 | PUTBACK; |
|
|
523 | call_sv ((SV *)GvCV (to_json), G_SCALAR); |
|
|
524 | SPAGAIN; |
|
|
525 | |
|
|
526 | // catch this surprisingly common error |
|
|
527 | if (SvROK (TOPs) && SvRV (TOPs) == sv) |
|
|
528 | croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv))); |
|
|
529 | |
|
|
530 | sv = POPs; |
|
|
531 | PUTBACK; |
|
|
532 | |
|
|
533 | encode_sv (enc, sv); |
|
|
534 | |
|
|
535 | FREETMPS; LEAVE; |
|
|
536 | } |
|
|
537 | else if (enc->json.flags & F_ALLOW_BLESSED) |
|
|
538 | encode_str (enc, "null", 4, 0); |
|
|
539 | else |
|
|
540 | croak ("encountered object '%s', but neither allow_blessed enabled nor TO_JSON method available on it", |
|
|
541 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
|
|
542 | } |
|
|
543 | else if (enc->json.flags & F_ALLOW_BLESSED) |
|
|
544 | encode_str (enc, "null", 4, 0); |
|
|
545 | else |
|
|
546 | croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled", |
|
|
547 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
|
|
548 | } |
|
|
549 | } |
|
|
550 | else if (svt == SVt_PVHV) |
|
|
551 | encode_hv (enc, (HV *)sv); |
|
|
552 | else if (svt == SVt_PVAV) |
|
|
553 | encode_av (enc, (AV *)sv); |
|
|
554 | else if (svt < SVt_PVAV) |
|
|
555 | { |
|
|
556 | STRLEN len = 0; |
|
|
557 | char *pv = svt ? SvPV (sv, len) : 0; |
|
|
558 | |
|
|
559 | if (len == 1 && *pv == '1') |
|
|
560 | encode_str (enc, "true", 4, 0); |
|
|
561 | else if (len == 1 && *pv == '0') |
|
|
562 | encode_str (enc, "false", 5, 0); |
|
|
563 | else |
|
|
564 | croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1", |
|
|
565 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
|
|
566 | } |
|
|
567 | else |
|
|
568 | croak ("encountered %s, but JSON can only represent references to arrays or hashes", |
|
|
569 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
423 | } |
570 | } |
424 | |
571 | |
425 | static void |
572 | static void |
426 | encode_sv (enc_t *enc, SV *sv) |
573 | encode_sv (enc_t *enc, SV *sv) |
427 | { |
574 | { |
… | |
… | |
435 | encode_str (enc, str, len, SvUTF8 (sv)); |
582 | encode_str (enc, str, len, SvUTF8 (sv)); |
436 | encode_ch (enc, '"'); |
583 | encode_ch (enc, '"'); |
437 | } |
584 | } |
438 | else if (SvNOKp (sv)) |
585 | else if (SvNOKp (sv)) |
439 | { |
586 | { |
|
|
587 | // trust that perl will do the right thing w.r.t. JSON syntax. |
440 | need (enc, NV_DIG + 32); |
588 | need (enc, NV_DIG + 32); |
441 | Gconvert (SvNVX (sv), NV_DIG, 0, enc->cur); |
589 | Gconvert (SvNVX (sv), NV_DIG, 0, enc->cur); |
442 | enc->cur += strlen (enc->cur); |
590 | enc->cur += strlen (enc->cur); |
443 | } |
591 | } |
444 | else if (SvIOKp (sv)) |
592 | else if (SvIOKp (sv)) |
445 | { |
593 | { |
446 | need (enc, 64); |
594 | // we assume we can always read an IV as a UV |
|
|
595 | if (SvUV (sv) & ~(UV)0x7fff) |
|
|
596 | { |
|
|
597 | // large integer, use the (rather slow) snprintf way. |
|
|
598 | need (enc, sizeof (UV) * 3); |
447 | enc->cur += |
599 | enc->cur += |
448 | SvIsUV(sv) |
600 | SvIsUV(sv) |
449 | ? snprintf (enc->cur, 64, "%"UVuf, (UV)SvUVX (sv)) |
601 | ? snprintf (enc->cur, sizeof (UV) * 3, "%"UVuf, (UV)SvUVX (sv)) |
450 | : snprintf (enc->cur, 64, "%"IVdf, (IV)SvIVX (sv)); |
602 | : snprintf (enc->cur, sizeof (UV) * 3, "%"IVdf, (IV)SvIVX (sv)); |
|
|
603 | } |
|
|
604 | else |
|
|
605 | { |
|
|
606 | // optimise the "small number case" |
|
|
607 | // code will likely be branchless and use only a single multiplication |
|
|
608 | I32 i = SvIV (sv); |
|
|
609 | U32 u; |
|
|
610 | char digit, nz = 0; |
|
|
611 | |
|
|
612 | need (enc, 6); |
|
|
613 | |
|
|
614 | *enc->cur = '-'; enc->cur += i < 0 ? 1 : 0; |
|
|
615 | u = i < 0 ? -i : i; |
|
|
616 | |
|
|
617 | // convert to 4.28 fixed-point representation |
|
|
618 | u = u * ((0xfffffff + 10000) / 10000); // 10**5, 5 fractional digits |
|
|
619 | |
|
|
620 | // now output digit by digit, each time masking out the integer part |
|
|
621 | // and multiplying by 5 while moving the decimal point one to the right, |
|
|
622 | // resulting in a net multiplication by 10. |
|
|
623 | // we always write the digit to memory but conditionally increment |
|
|
624 | // the pointer, to ease the usage of conditional move instructions. |
|
|
625 | digit = u >> 28; *enc->cur = digit + '0'; enc->cur += (nz = nz || digit); u = (u & 0xfffffff) * 5; |
|
|
626 | digit = u >> 27; *enc->cur = digit + '0'; enc->cur += (nz = nz || digit); u = (u & 0x7ffffff) * 5; |
|
|
627 | digit = u >> 26; *enc->cur = digit + '0'; enc->cur += (nz = nz || digit); u = (u & 0x3ffffff) * 5; |
|
|
628 | digit = u >> 25; *enc->cur = digit + '0'; enc->cur += (nz = nz || digit); u = (u & 0x1ffffff) * 5; |
|
|
629 | digit = u >> 24; *enc->cur = digit + '0'; enc->cur += 1; // correctly generate '0' |
|
|
630 | } |
451 | } |
631 | } |
452 | else if (SvROK (sv)) |
632 | else if (SvROK (sv)) |
453 | { |
633 | encode_rv (enc, SvRV (sv)); |
454 | SV *rv = SvRV (sv); |
|
|
455 | |
|
|
456 | if (enc->indent >= enc->maxdepth) |
|
|
457 | croak ("data structure too deep (hit recursion limit)"); |
|
|
458 | |
|
|
459 | switch (SvTYPE (rv)) |
|
|
460 | { |
|
|
461 | case SVt_PVAV: encode_av (enc, (AV *)rv); break; |
|
|
462 | case SVt_PVHV: encode_hv (enc, (HV *)rv); break; |
|
|
463 | |
|
|
464 | default: |
|
|
465 | croak ("encountered %s, but JSON can only represent references to arrays or hashes", |
|
|
466 | SvPV_nolen (sv)); |
|
|
467 | } |
|
|
468 | } |
|
|
469 | else if (!SvOK (sv)) |
634 | else if (!SvOK (sv)) |
470 | encode_str (enc, "null", 4, 0); |
635 | encode_str (enc, "null", 4, 0); |
471 | else |
636 | else |
472 | croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this", |
637 | croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this", |
473 | SvPV_nolen (sv), SvFLAGS (sv)); |
638 | SvPV_nolen (sv), SvFLAGS (sv)); |
474 | } |
639 | } |
475 | |
640 | |
476 | static SV * |
641 | static SV * |
477 | encode_json (SV *scalar, U32 flags) |
642 | encode_json (SV *scalar, JSON *json) |
478 | { |
643 | { |
|
|
644 | enc_t enc; |
|
|
645 | |
479 | if (!(flags & F_ALLOW_NONREF) && !SvROK (scalar)) |
646 | if (!(json->flags & F_ALLOW_NONREF) && !SvROK (scalar)) |
480 | croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)"); |
647 | croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)"); |
481 | |
648 | |
482 | enc_t enc; |
649 | enc.json = *json; |
483 | enc.flags = flags; |
|
|
484 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
650 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
485 | enc.cur = SvPVX (enc.sv); |
651 | enc.cur = SvPVX (enc.sv); |
486 | enc.end = SvEND (enc.sv); |
652 | enc.end = SvEND (enc.sv); |
487 | enc.indent = 0; |
653 | enc.indent = 0; |
488 | enc.maxdepth = DEC_DEPTH (flags); |
654 | enc.maxdepth = DEC_DEPTH (enc.json.flags); |
489 | |
655 | |
490 | SvPOK_only (enc.sv); |
656 | SvPOK_only (enc.sv); |
491 | encode_sv (&enc, scalar); |
657 | encode_sv (&enc, scalar); |
492 | |
658 | |
|
|
659 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
|
|
660 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
|
|
661 | |
493 | if (!(flags & (F_ASCII | F_UTF8))) |
662 | if (!(enc.json.flags & (F_ASCII | F_LATIN1 | F_UTF8))) |
494 | SvUTF8_on (enc.sv); |
663 | SvUTF8_on (enc.sv); |
495 | |
664 | |
496 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
|
|
497 | |
|
|
498 | if (enc.flags & F_SHRINK) |
665 | if (enc.json.flags & F_SHRINK) |
499 | shrink (enc.sv); |
666 | shrink (enc.sv); |
500 | |
667 | |
501 | return enc.sv; |
668 | return enc.sv; |
502 | } |
669 | } |
503 | |
670 | |
… | |
… | |
508 | typedef struct |
675 | typedef struct |
509 | { |
676 | { |
510 | char *cur; // current parser pointer |
677 | char *cur; // current parser pointer |
511 | char *end; // end of input string |
678 | char *end; // end of input string |
512 | const char *err; // parse error, if != 0 |
679 | const char *err; // parse error, if != 0 |
513 | U32 flags; // F_* |
680 | JSON json; |
514 | U32 depth; // recursion depth |
681 | U32 depth; // recursion depth |
515 | U32 maxdepth; // recursion depth limit |
682 | U32 maxdepth; // recursion depth limit |
516 | } dec_t; |
683 | } dec_t; |
517 | |
684 | |
518 | static void |
685 | inline void |
519 | decode_ws (dec_t *dec) |
686 | decode_ws (dec_t *dec) |
520 | { |
687 | { |
521 | for (;;) |
688 | for (;;) |
522 | { |
689 | { |
523 | char ch = *dec->cur; |
690 | char ch = *dec->cur; |
… | |
… | |
549 | decode_4hex (dec_t *dec) |
716 | decode_4hex (dec_t *dec) |
550 | { |
717 | { |
551 | signed char d1, d2, d3, d4; |
718 | signed char d1, d2, d3, d4; |
552 | unsigned char *cur = (unsigned char *)dec->cur; |
719 | unsigned char *cur = (unsigned char *)dec->cur; |
553 | |
720 | |
554 | d1 = decode_hexdigit [cur [0]]; if (d1 < 0) ERR ("four hexadecimal digits expected"); |
721 | d1 = decode_hexdigit [cur [0]]; if (expect_false (d1 < 0)) ERR ("exactly four hexadecimal digits expected"); |
555 | d2 = decode_hexdigit [cur [1]]; if (d2 < 0) ERR ("four hexadecimal digits expected"); |
722 | d2 = decode_hexdigit [cur [1]]; if (expect_false (d2 < 0)) ERR ("exactly four hexadecimal digits expected"); |
556 | d3 = decode_hexdigit [cur [2]]; if (d3 < 0) ERR ("four hexadecimal digits expected"); |
723 | d3 = decode_hexdigit [cur [2]]; if (expect_false (d3 < 0)) ERR ("exactly four hexadecimal digits expected"); |
557 | d4 = decode_hexdigit [cur [3]]; if (d4 < 0) ERR ("four hexadecimal digits expected"); |
724 | d4 = decode_hexdigit [cur [3]]; if (expect_false (d4 < 0)) ERR ("exactly four hexadecimal digits expected"); |
558 | |
725 | |
559 | dec->cur += 4; |
726 | dec->cur += 4; |
560 | |
727 | |
561 | return ((UV)d1) << 12 |
728 | return ((UV)d1) << 12 |
562 | | ((UV)d2) << 8 |
729 | | ((UV)d2) << 8 |
… | |
… | |
570 | static SV * |
737 | static SV * |
571 | decode_str (dec_t *dec) |
738 | decode_str (dec_t *dec) |
572 | { |
739 | { |
573 | SV *sv = 0; |
740 | SV *sv = 0; |
574 | int utf8 = 0; |
741 | int utf8 = 0; |
|
|
742 | char *dec_cur = dec->cur; |
575 | |
743 | |
576 | do |
744 | do |
577 | { |
745 | { |
578 | char buf [SHORT_STRING_LEN + UTF8_MAX_LEN]; |
746 | char buf [SHORT_STRING_LEN + UTF8_MAXBYTES]; |
579 | char *cur = buf; |
747 | char *cur = buf; |
580 | |
748 | |
581 | do |
749 | do |
582 | { |
750 | { |
583 | unsigned char ch = *(unsigned char *)dec->cur++; |
751 | unsigned char ch = *(unsigned char *)dec_cur++; |
584 | |
752 | |
585 | if (ch == '"') |
753 | if (expect_false (ch == '"')) |
586 | { |
754 | { |
587 | --dec->cur; |
755 | --dec_cur; |
588 | break; |
756 | break; |
589 | } |
757 | } |
590 | else if (ch == '\\') |
758 | else if (expect_false (ch == '\\')) |
591 | { |
759 | { |
592 | switch (*dec->cur) |
760 | switch (*dec_cur) |
593 | { |
761 | { |
594 | case '\\': |
762 | case '\\': |
595 | case '/': |
763 | case '/': |
596 | case '"': *cur++ = *dec->cur++; break; |
764 | case '"': *cur++ = *dec_cur++; break; |
597 | |
765 | |
598 | case 'b': ++dec->cur; *cur++ = '\010'; break; |
766 | case 'b': ++dec_cur; *cur++ = '\010'; break; |
599 | case 't': ++dec->cur; *cur++ = '\011'; break; |
767 | case 't': ++dec_cur; *cur++ = '\011'; break; |
600 | case 'n': ++dec->cur; *cur++ = '\012'; break; |
768 | case 'n': ++dec_cur; *cur++ = '\012'; break; |
601 | case 'f': ++dec->cur; *cur++ = '\014'; break; |
769 | case 'f': ++dec_cur; *cur++ = '\014'; break; |
602 | case 'r': ++dec->cur; *cur++ = '\015'; break; |
770 | case 'r': ++dec_cur; *cur++ = '\015'; break; |
603 | |
771 | |
604 | case 'u': |
772 | case 'u': |
605 | { |
773 | { |
606 | UV lo, hi; |
774 | UV lo, hi; |
607 | ++dec->cur; |
775 | ++dec_cur; |
608 | |
776 | |
|
|
777 | dec->cur = dec_cur; |
609 | hi = decode_4hex (dec); |
778 | hi = decode_4hex (dec); |
|
|
779 | dec_cur = dec->cur; |
610 | if (hi == (UV)-1) |
780 | if (hi == (UV)-1) |
611 | goto fail; |
781 | goto fail; |
612 | |
782 | |
613 | // possibly a surrogate pair |
783 | // possibly a surrogate pair |
614 | if (hi >= 0xd800) |
784 | if (hi >= 0xd800) |
615 | if (hi < 0xdc00) |
785 | if (hi < 0xdc00) |
616 | { |
786 | { |
617 | if (dec->cur [0] != '\\' || dec->cur [1] != 'u') |
787 | if (dec_cur [0] != '\\' || dec_cur [1] != 'u') |
618 | ERR ("missing low surrogate character in surrogate pair"); |
788 | ERR ("missing low surrogate character in surrogate pair"); |
619 | |
789 | |
620 | dec->cur += 2; |
790 | dec_cur += 2; |
621 | |
791 | |
|
|
792 | dec->cur = dec_cur; |
622 | lo = decode_4hex (dec); |
793 | lo = decode_4hex (dec); |
|
|
794 | dec_cur = dec->cur; |
623 | if (lo == (UV)-1) |
795 | if (lo == (UV)-1) |
624 | goto fail; |
796 | goto fail; |
625 | |
797 | |
626 | if (lo < 0xdc00 || lo >= 0xe000) |
798 | if (lo < 0xdc00 || lo >= 0xe000) |
627 | ERR ("surrogate pair expected"); |
799 | ERR ("surrogate pair expected"); |
… | |
… | |
641 | *cur++ = hi; |
813 | *cur++ = hi; |
642 | } |
814 | } |
643 | break; |
815 | break; |
644 | |
816 | |
645 | default: |
817 | default: |
646 | --dec->cur; |
818 | --dec_cur; |
647 | ERR ("illegal backslash escape sequence in string"); |
819 | ERR ("illegal backslash escape sequence in string"); |
648 | } |
820 | } |
649 | } |
821 | } |
650 | else if (ch >= 0x20 && ch <= 0x7f) |
822 | else if (expect_true (ch >= 0x20 && ch <= 0x7f)) |
651 | *cur++ = ch; |
823 | *cur++ = ch; |
652 | else if (ch >= 0x80) |
824 | else if (ch >= 0x80) |
653 | { |
825 | { |
654 | --dec->cur; |
|
|
655 | |
|
|
656 | STRLEN clen; |
826 | STRLEN clen; |
|
|
827 | UV uch; |
|
|
828 | |
|
|
829 | --dec_cur; |
|
|
830 | |
657 | UV uch = decode_utf8 (dec->cur, dec->end - dec->cur, &clen); |
831 | uch = decode_utf8 (dec_cur, dec->end - dec_cur, &clen); |
658 | if (clen == (STRLEN)-1) |
832 | if (clen == (STRLEN)-1) |
659 | ERR ("malformed UTF-8 character in JSON string"); |
833 | ERR ("malformed UTF-8 character in JSON string"); |
660 | |
834 | |
661 | do |
835 | do |
662 | { |
|
|
663 | *cur++ = *dec->cur++; |
836 | *cur++ = *dec_cur++; |
664 | } |
|
|
665 | while (--clen); |
837 | while (--clen); |
666 | |
838 | |
667 | utf8 = 1; |
839 | utf8 = 1; |
668 | } |
840 | } |
669 | else if (!ch) |
|
|
670 | ERR ("unexpected end of string while parsing json string"); |
|
|
671 | else |
841 | else |
|
|
842 | { |
|
|
843 | --dec_cur; |
|
|
844 | |
|
|
845 | if (!ch) |
|
|
846 | ERR ("unexpected end of string while parsing JSON string"); |
|
|
847 | else |
672 | ERR ("invalid character encountered"); |
848 | ERR ("invalid character encountered while parsing JSON string"); |
673 | |
849 | } |
674 | } |
850 | } |
675 | while (cur < buf + SHORT_STRING_LEN); |
851 | while (cur < buf + SHORT_STRING_LEN); |
676 | |
852 | |
|
|
853 | { |
677 | STRLEN len = cur - buf; |
854 | STRLEN len = cur - buf; |
678 | |
855 | |
679 | if (sv) |
856 | if (sv) |
680 | { |
857 | { |
681 | SvGROW (sv, SvCUR (sv) + len + 1); |
858 | SvGROW (sv, SvCUR (sv) + len + 1); |
682 | memcpy (SvPVX (sv) + SvCUR (sv), buf, len); |
859 | memcpy (SvPVX (sv) + SvCUR (sv), buf, len); |
683 | SvCUR_set (sv, SvCUR (sv) + len); |
860 | SvCUR_set (sv, SvCUR (sv) + len); |
684 | } |
861 | } |
685 | else |
862 | else |
686 | sv = newSVpvn (buf, len); |
863 | sv = newSVpvn (buf, len); |
687 | } |
864 | } |
|
|
865 | } |
688 | while (*dec->cur != '"'); |
866 | while (*dec_cur != '"'); |
689 | |
867 | |
690 | ++dec->cur; |
868 | ++dec_cur; |
691 | |
869 | |
692 | if (sv) |
870 | if (sv) |
693 | { |
871 | { |
694 | SvPOK_only (sv); |
872 | SvPOK_only (sv); |
695 | *SvEND (sv) = 0; |
873 | *SvEND (sv) = 0; |
… | |
… | |
698 | SvUTF8_on (sv); |
876 | SvUTF8_on (sv); |
699 | } |
877 | } |
700 | else |
878 | else |
701 | sv = newSVpvn ("", 0); |
879 | sv = newSVpvn ("", 0); |
702 | |
880 | |
|
|
881 | dec->cur = dec_cur; |
703 | return sv; |
882 | return sv; |
704 | |
883 | |
705 | fail: |
884 | fail: |
|
|
885 | dec->cur = dec_cur; |
706 | return 0; |
886 | return 0; |
707 | } |
887 | } |
708 | |
888 | |
709 | static SV * |
889 | static SV * |
710 | decode_num (dec_t *dec) |
890 | decode_num (dec_t *dec) |
… | |
… | |
768 | is_nv = 1; |
948 | is_nv = 1; |
769 | } |
949 | } |
770 | |
950 | |
771 | if (!is_nv) |
951 | if (!is_nv) |
772 | { |
952 | { |
773 | UV uv; |
953 | int len = dec->cur - start; |
774 | int numtype = grok_number (start, dec->cur - start, &uv); |
954 | |
775 | if (numtype & IS_NUMBER_IN_UV) |
955 | // special case the rather common 1..4-digit-int case, assumes 32 bit ints or so |
776 | if (numtype & IS_NUMBER_NEG) |
956 | if (*start == '-') |
|
|
957 | switch (len) |
777 | { |
958 | { |
778 | if (uv < (UV)IV_MIN) |
959 | case 2: return newSViv (-( start [1] - '0' * 1)); |
779 | return newSViv (-(IV)uv); |
960 | case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11)); |
|
|
961 | case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111)); |
|
|
962 | case 5: return newSViv (-(start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111)); |
780 | } |
963 | } |
|
|
964 | else |
|
|
965 | switch (len) |
|
|
966 | { |
|
|
967 | case 1: return newSViv ( start [0] - '0' * 1); |
|
|
968 | case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11); |
|
|
969 | case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111); |
|
|
970 | case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111); |
|
|
971 | } |
|
|
972 | |
|
|
973 | { |
|
|
974 | UV uv; |
|
|
975 | int numtype = grok_number (start, len, &uv); |
|
|
976 | if (numtype & IS_NUMBER_IN_UV) |
|
|
977 | if (numtype & IS_NUMBER_NEG) |
|
|
978 | { |
|
|
979 | if (uv < (UV)IV_MIN) |
|
|
980 | return newSViv (-(IV)uv); |
|
|
981 | } |
781 | else |
982 | else |
782 | return newSVuv (uv); |
983 | return newSVuv (uv); |
783 | } |
984 | } |
784 | |
985 | |
|
|
986 | len -= *start == '-' ? 1 : 0; |
|
|
987 | |
|
|
988 | // does not fit into IV or UV, try NV |
|
|
989 | if ((sizeof (NV) == sizeof (double) && DBL_DIG >= len) |
|
|
990 | #if defined (LDBL_DIG) |
|
|
991 | || (sizeof (NV) == sizeof (long double) && LDBL_DIG >= len) |
|
|
992 | #endif |
|
|
993 | ) |
|
|
994 | // fits into NV without loss of precision |
|
|
995 | return newSVnv (Atof (start)); |
|
|
996 | |
|
|
997 | // everything else fails, convert it to a string |
|
|
998 | return newSVpvn (start, dec->cur - start); |
|
|
999 | } |
|
|
1000 | |
|
|
1001 | // loss of precision here |
785 | return newSVnv (Atof (start)); |
1002 | return newSVnv (Atof (start)); |
786 | |
1003 | |
787 | fail: |
1004 | fail: |
788 | return 0; |
1005 | return 0; |
789 | } |
1006 | } |
… | |
… | |
833 | } |
1050 | } |
834 | |
1051 | |
835 | static SV * |
1052 | static SV * |
836 | decode_hv (dec_t *dec) |
1053 | decode_hv (dec_t *dec) |
837 | { |
1054 | { |
|
|
1055 | SV *sv; |
838 | HV *hv = newHV (); |
1056 | HV *hv = newHV (); |
839 | |
1057 | |
840 | DEC_INC_DEPTH; |
1058 | DEC_INC_DEPTH; |
841 | decode_ws (dec); |
1059 | decode_ws (dec); |
842 | |
1060 | |
843 | if (*dec->cur == '}') |
1061 | if (*dec->cur == '}') |
844 | ++dec->cur; |
1062 | ++dec->cur; |
845 | else |
1063 | else |
846 | for (;;) |
1064 | for (;;) |
847 | { |
1065 | { |
848 | SV *key, *value; |
|
|
849 | |
|
|
850 | decode_ws (dec); EXPECT_CH ('"'); |
1066 | decode_ws (dec); EXPECT_CH ('"'); |
851 | |
1067 | |
852 | key = decode_str (dec); |
1068 | // heuristic: assume that |
853 | if (!key) |
1069 | // a) decode_str + hv_store_ent are abysmally slow. |
854 | goto fail; |
1070 | // b) most hash keys are short, simple ascii text. |
|
|
1071 | // => try to "fast-match" such strings to avoid |
|
|
1072 | // the overhead of decode_str + hv_store_ent. |
|
|
1073 | { |
|
|
1074 | SV *value; |
|
|
1075 | char *p = dec->cur; |
|
|
1076 | char *e = p + 24; // only try up to 24 bytes |
855 | |
1077 | |
856 | decode_ws (dec); EXPECT_CH (':'); |
1078 | for (;;) |
857 | |
|
|
858 | value = decode_sv (dec); |
|
|
859 | if (!value) |
|
|
860 | { |
1079 | { |
|
|
1080 | // the >= 0x80 is true on most architectures |
|
|
1081 | if (p == e || *p < 0x20 || *p >= 0x80 || *p == '\\') |
|
|
1082 | { |
|
|
1083 | // slow path, back up and use decode_str |
|
|
1084 | SV *key = decode_str (dec); |
|
|
1085 | if (!key) |
|
|
1086 | goto fail; |
|
|
1087 | |
|
|
1088 | decode_ws (dec); EXPECT_CH (':'); |
|
|
1089 | |
|
|
1090 | value = decode_sv (dec); |
|
|
1091 | if (!value) |
|
|
1092 | { |
|
|
1093 | SvREFCNT_dec (key); |
|
|
1094 | goto fail; |
|
|
1095 | } |
|
|
1096 | |
|
|
1097 | hv_store_ent (hv, key, value, 0); |
861 | SvREFCNT_dec (key); |
1098 | SvREFCNT_dec (key); |
|
|
1099 | |
|
|
1100 | break; |
|
|
1101 | } |
|
|
1102 | else if (*p == '"') |
|
|
1103 | { |
|
|
1104 | // fast path, got a simple key |
|
|
1105 | char *key = dec->cur; |
|
|
1106 | int len = p - key; |
|
|
1107 | dec->cur = p + 1; |
|
|
1108 | |
|
|
1109 | decode_ws (dec); EXPECT_CH (':'); |
|
|
1110 | |
|
|
1111 | value = decode_sv (dec); |
|
|
1112 | if (!value) |
862 | goto fail; |
1113 | goto fail; |
|
|
1114 | |
|
|
1115 | hv_store (hv, key, len, value, 0); |
|
|
1116 | |
|
|
1117 | break; |
|
|
1118 | } |
|
|
1119 | |
|
|
1120 | ++p; |
863 | } |
1121 | } |
864 | |
1122 | } |
865 | hv_store_ent (hv, key, value, 0); |
|
|
866 | SvREFCNT_dec (key); |
|
|
867 | |
1123 | |
868 | decode_ws (dec); |
1124 | decode_ws (dec); |
869 | |
1125 | |
870 | if (*dec->cur == '}') |
1126 | if (*dec->cur == '}') |
871 | { |
1127 | { |
… | |
… | |
878 | |
1134 | |
879 | ++dec->cur; |
1135 | ++dec->cur; |
880 | } |
1136 | } |
881 | |
1137 | |
882 | DEC_DEC_DEPTH; |
1138 | DEC_DEC_DEPTH; |
883 | return newRV_noinc ((SV *)hv); |
1139 | sv = newRV_noinc ((SV *)hv); |
|
|
1140 | |
|
|
1141 | // check filter callbacks |
|
|
1142 | if (dec->json.flags & F_HOOK) |
|
|
1143 | { |
|
|
1144 | if (dec->json.cb_sk_object && HvKEYS (hv) == 1) |
|
|
1145 | { |
|
|
1146 | HE *cb, *he; |
|
|
1147 | |
|
|
1148 | hv_iterinit (hv); |
|
|
1149 | he = hv_iternext (hv); |
|
|
1150 | hv_iterinit (hv); |
|
|
1151 | |
|
|
1152 | // the next line creates a mortal sv each time its called. |
|
|
1153 | // might want to optimise this for common cases. |
|
|
1154 | cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0); |
|
|
1155 | |
|
|
1156 | if (cb) |
|
|
1157 | { |
|
|
1158 | dSP; |
|
|
1159 | int count; |
|
|
1160 | |
|
|
1161 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
1162 | XPUSHs (HeVAL (he)); |
|
|
1163 | |
|
|
1164 | PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN; |
|
|
1165 | |
|
|
1166 | if (count == 1) |
|
|
1167 | { |
|
|
1168 | sv = newSVsv (POPs); |
|
|
1169 | FREETMPS; LEAVE; |
|
|
1170 | return sv; |
|
|
1171 | } |
|
|
1172 | |
|
|
1173 | FREETMPS; LEAVE; |
|
|
1174 | } |
|
|
1175 | } |
|
|
1176 | |
|
|
1177 | if (dec->json.cb_object) |
|
|
1178 | { |
|
|
1179 | dSP; |
|
|
1180 | int count; |
|
|
1181 | |
|
|
1182 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
1183 | XPUSHs (sv_2mortal (sv)); |
|
|
1184 | |
|
|
1185 | PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN; |
|
|
1186 | |
|
|
1187 | if (count == 1) |
|
|
1188 | { |
|
|
1189 | sv = newSVsv (POPs); |
|
|
1190 | FREETMPS; LEAVE; |
|
|
1191 | return sv; |
|
|
1192 | } |
|
|
1193 | |
|
|
1194 | SvREFCNT_inc (sv); |
|
|
1195 | FREETMPS; LEAVE; |
|
|
1196 | } |
|
|
1197 | } |
|
|
1198 | |
|
|
1199 | return sv; |
884 | |
1200 | |
885 | fail: |
1201 | fail: |
886 | SvREFCNT_dec (hv); |
1202 | SvREFCNT_dec (hv); |
887 | DEC_DEC_DEPTH; |
1203 | DEC_DEC_DEPTH; |
888 | return 0; |
1204 | return 0; |
… | |
… | |
890 | |
1206 | |
891 | static SV * |
1207 | static SV * |
892 | decode_sv (dec_t *dec) |
1208 | decode_sv (dec_t *dec) |
893 | { |
1209 | { |
894 | decode_ws (dec); |
1210 | decode_ws (dec); |
|
|
1211 | |
|
|
1212 | // the beauty of JSON: you need exactly one character lookahead |
|
|
1213 | // to parse anything. |
895 | switch (*dec->cur) |
1214 | switch (*dec->cur) |
896 | { |
1215 | { |
897 | case '"': ++dec->cur; return decode_str (dec); |
1216 | case '"': ++dec->cur; return decode_str (dec); |
898 | case '[': ++dec->cur; return decode_av (dec); |
1217 | case '[': ++dec->cur; return decode_av (dec); |
899 | case '{': ++dec->cur; return decode_hv (dec); |
1218 | case '{': ++dec->cur; return decode_hv (dec); |
… | |
… | |
905 | |
1224 | |
906 | case 't': |
1225 | case 't': |
907 | if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4)) |
1226 | if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4)) |
908 | { |
1227 | { |
909 | dec->cur += 4; |
1228 | dec->cur += 4; |
910 | return newSViv (1); |
1229 | return SvREFCNT_inc (json_true); |
911 | } |
1230 | } |
912 | else |
1231 | else |
913 | ERR ("'true' expected"); |
1232 | ERR ("'true' expected"); |
914 | |
1233 | |
915 | break; |
1234 | break; |
916 | |
1235 | |
917 | case 'f': |
1236 | case 'f': |
918 | if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5)) |
1237 | if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5)) |
919 | { |
1238 | { |
920 | dec->cur += 5; |
1239 | dec->cur += 5; |
921 | return newSViv (0); |
1240 | return SvREFCNT_inc (json_false); |
922 | } |
1241 | } |
923 | else |
1242 | else |
924 | ERR ("'false' expected"); |
1243 | ERR ("'false' expected"); |
925 | |
1244 | |
926 | break; |
1245 | break; |
… | |
… | |
935 | ERR ("'null' expected"); |
1254 | ERR ("'null' expected"); |
936 | |
1255 | |
937 | break; |
1256 | break; |
938 | |
1257 | |
939 | default: |
1258 | default: |
940 | ERR ("malformed json string, neither array, object, number, string or atom"); |
1259 | ERR ("malformed JSON string, neither array, object, number, string or atom"); |
941 | break; |
1260 | break; |
942 | } |
1261 | } |
943 | |
1262 | |
944 | fail: |
1263 | fail: |
945 | return 0; |
1264 | return 0; |
946 | } |
1265 | } |
947 | |
1266 | |
948 | static SV * |
1267 | static SV * |
949 | decode_json (SV *string, U32 flags) |
1268 | decode_json (SV *string, JSON *json, UV *offset_return) |
950 | { |
1269 | { |
|
|
1270 | dec_t dec; |
|
|
1271 | UV offset; |
951 | SV *sv; |
1272 | SV *sv; |
952 | |
1273 | |
|
|
1274 | SvGETMAGIC (string); |
|
|
1275 | SvUPGRADE (string, SVt_PV); |
|
|
1276 | |
|
|
1277 | if (json->flags & F_MAXSIZE && SvCUR (string) > DEC_SIZE (json->flags)) |
|
|
1278 | croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu", |
|
|
1279 | (unsigned long)SvCUR (string), (unsigned long)DEC_SIZE (json->flags)); |
|
|
1280 | |
953 | if (flags & F_UTF8) |
1281 | if (json->flags & F_UTF8) |
954 | sv_utf8_downgrade (string, 0); |
1282 | sv_utf8_downgrade (string, 0); |
955 | else |
1283 | else |
956 | sv_utf8_upgrade (string); |
1284 | sv_utf8_upgrade (string); |
957 | |
1285 | |
958 | SvGROW (string, SvCUR (string) + 1); // should basically be a NOP |
1286 | SvGROW (string, SvCUR (string) + 1); // should basically be a NOP |
959 | |
1287 | |
960 | dec_t dec; |
1288 | dec.json = *json; |
961 | dec.flags = flags; |
|
|
962 | dec.cur = SvPVX (string); |
1289 | dec.cur = SvPVX (string); |
963 | dec.end = SvEND (string); |
1290 | dec.end = SvEND (string); |
964 | dec.err = 0; |
1291 | dec.err = 0; |
965 | dec.depth = 0; |
1292 | dec.depth = 0; |
966 | dec.maxdepth = DEC_DEPTH (dec.flags); |
1293 | dec.maxdepth = DEC_DEPTH (dec.json.flags); |
967 | |
1294 | |
968 | *SvEND (sv) = 0; // this shou[ld basically be a nop, too |
1295 | if (dec.json.cb_object || dec.json.cb_sk_object) |
|
|
1296 | dec.json.flags |= F_HOOK; |
|
|
1297 | |
|
|
1298 | *dec.end = 0; // this should basically be a nop, too, but make sure it's there |
969 | sv = decode_sv (&dec); |
1299 | sv = decode_sv (&dec); |
970 | |
1300 | |
|
|
1301 | if (!(offset_return || !sv)) |
|
|
1302 | { |
|
|
1303 | // check for trailing garbage |
|
|
1304 | decode_ws (&dec); |
|
|
1305 | |
|
|
1306 | if (*dec.cur) |
|
|
1307 | { |
|
|
1308 | dec.err = "garbage after JSON object"; |
|
|
1309 | SvREFCNT_dec (sv); |
|
|
1310 | sv = 0; |
|
|
1311 | } |
|
|
1312 | } |
|
|
1313 | |
|
|
1314 | if (offset_return || !sv) |
|
|
1315 | { |
|
|
1316 | offset = dec.json.flags & F_UTF8 |
|
|
1317 | ? dec.cur - SvPVX (string) |
|
|
1318 | : utf8_distance (dec.cur, SvPVX (string)); |
|
|
1319 | |
|
|
1320 | if (offset_return) |
|
|
1321 | *offset_return = offset; |
|
|
1322 | } |
|
|
1323 | |
971 | if (!sv) |
1324 | if (!sv) |
972 | { |
1325 | { |
973 | IV offset = dec.flags & F_UTF8 |
|
|
974 | ? dec.cur - SvPVX (string) |
|
|
975 | : utf8_distance (dec.cur, SvPVX (string)); |
|
|
976 | SV *uni = sv_newmortal (); |
1326 | SV *uni = sv_newmortal (); |
977 | |
1327 | |
978 | // horrible hack to silence warning inside pv_uni_display |
1328 | // horrible hack to silence warning inside pv_uni_display |
979 | COP cop = *PL_curcop; |
1329 | COP cop = *PL_curcop; |
980 | cop.cop_warnings = pWARN_NONE; |
1330 | cop.cop_warnings = pWARN_NONE; |
… | |
… | |
982 | SAVEVPTR (PL_curcop); |
1332 | SAVEVPTR (PL_curcop); |
983 | PL_curcop = &cop; |
1333 | PL_curcop = &cop; |
984 | pv_uni_display (uni, dec.cur, dec.end - dec.cur, 20, UNI_DISPLAY_QQ); |
1334 | pv_uni_display (uni, dec.cur, dec.end - dec.cur, 20, UNI_DISPLAY_QQ); |
985 | LEAVE; |
1335 | LEAVE; |
986 | |
1336 | |
987 | croak ("%s, at character offset %d (%s)", |
1337 | croak ("%s, at character offset %d [\"%s\"]", |
988 | dec.err, |
1338 | dec.err, |
989 | (int)offset, |
1339 | (int)offset, |
990 | dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)"); |
1340 | dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)"); |
991 | } |
1341 | } |
992 | |
1342 | |
993 | sv = sv_2mortal (sv); |
1343 | sv = sv_2mortal (sv); |
994 | |
1344 | |
995 | if (!(dec.flags & F_ALLOW_NONREF) && !SvROK (sv)) |
1345 | if (!(dec.json.flags & F_ALLOW_NONREF) && !SvROK (sv)) |
996 | croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)"); |
1346 | croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)"); |
997 | |
1347 | |
998 | return sv; |
1348 | return sv; |
999 | } |
1349 | } |
1000 | |
1350 | |
… | |
… | |
1004 | MODULE = JSON::XS PACKAGE = JSON::XS |
1354 | MODULE = JSON::XS PACKAGE = JSON::XS |
1005 | |
1355 | |
1006 | BOOT: |
1356 | BOOT: |
1007 | { |
1357 | { |
1008 | int i; |
1358 | int i; |
1009 | |
|
|
1010 | memset (decode_hexdigit, 0xff, 256); |
|
|
1011 | |
1359 | |
1012 | for (i = 0; i < 256; ++i) |
1360 | for (i = 0; i < 256; ++i) |
1013 | decode_hexdigit [i] = |
1361 | decode_hexdigit [i] = |
1014 | i >= '0' && i <= '9' ? i - '0' |
1362 | i >= '0' && i <= '9' ? i - '0' |
1015 | : i >= 'a' && i <= 'f' ? i - 'a' + 10 |
1363 | : i >= 'a' && i <= 'f' ? i - 'a' + 10 |
1016 | : i >= 'A' && i <= 'F' ? i - 'A' + 10 |
1364 | : i >= 'A' && i <= 'F' ? i - 'A' + 10 |
1017 | : -1; |
1365 | : -1; |
1018 | |
1366 | |
1019 | json_stash = gv_stashpv ("JSON::XS", 1); |
1367 | json_stash = gv_stashpv ("JSON::XS" , 1); |
|
|
1368 | json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1); |
|
|
1369 | |
|
|
1370 | json_true = get_sv ("JSON::XS::true" , 1); SvREADONLY_on (json_true ); |
|
|
1371 | json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false); |
1020 | } |
1372 | } |
1021 | |
1373 | |
1022 | PROTOTYPES: DISABLE |
1374 | PROTOTYPES: DISABLE |
1023 | |
1375 | |
1024 | SV *new (char *dummy) |
1376 | void CLONE (...) |
1025 | CODE: |
1377 | CODE: |
1026 | RETVAL = sv_bless (newRV_noinc (newSVuv (F_DEFAULT)), json_stash); |
1378 | json_stash = 0; |
1027 | OUTPUT: |
1379 | json_boolean_stash = 0; |
1028 | RETVAL |
|
|
1029 | |
1380 | |
|
|
1381 | void new (char *klass) |
|
|
1382 | PPCODE: |
|
|
1383 | { |
|
|
1384 | HV *stash = !JSON_SLOW || json_stash |
|
|
1385 | ? json_stash |
|
|
1386 | : gv_stashpv ("JSON::XS", 1); |
|
|
1387 | SV *pv = NEWSV (0, sizeof (JSON)); |
|
|
1388 | SvPOK_only (pv); |
|
|
1389 | Zero (SvPVX (pv), 1, JSON); |
|
|
1390 | ((JSON *)SvPVX (pv))->flags = F_DEFAULT; |
|
|
1391 | XPUSHs (sv_2mortal (sv_bless (newRV_noinc (pv), stash))); |
|
|
1392 | } |
|
|
1393 | |
1030 | SV *ascii (SV *self, int enable = 1) |
1394 | void ascii (JSON *self, int enable = 1) |
1031 | ALIAS: |
1395 | ALIAS: |
1032 | ascii = F_ASCII |
1396 | ascii = F_ASCII |
|
|
1397 | latin1 = F_LATIN1 |
1033 | utf8 = F_UTF8 |
1398 | utf8 = F_UTF8 |
1034 | indent = F_INDENT |
1399 | indent = F_INDENT |
1035 | canonical = F_CANONICAL |
1400 | canonical = F_CANONICAL |
1036 | space_before = F_SPACE_BEFORE |
1401 | space_before = F_SPACE_BEFORE |
1037 | space_after = F_SPACE_AFTER |
1402 | space_after = F_SPACE_AFTER |
1038 | pretty = F_PRETTY |
1403 | pretty = F_PRETTY |
1039 | allow_nonref = F_ALLOW_NONREF |
1404 | allow_nonref = F_ALLOW_NONREF |
1040 | shrink = F_SHRINK |
1405 | shrink = F_SHRINK |
|
|
1406 | allow_blessed = F_ALLOW_BLESSED |
|
|
1407 | convert_blessed = F_CONV_BLESSED |
1041 | CODE: |
1408 | PPCODE: |
1042 | { |
1409 | { |
1043 | UV *uv = SvJSON (self); |
|
|
1044 | if (enable) |
1410 | if (enable) |
1045 | *uv |= ix; |
1411 | self->flags |= ix; |
1046 | else |
1412 | else |
1047 | *uv &= ~ix; |
1413 | self->flags &= ~ix; |
1048 | |
1414 | |
1049 | RETVAL = newSVsv (self); |
1415 | XPUSHs (ST (0)); |
1050 | } |
1416 | } |
1051 | OUTPUT: |
|
|
1052 | RETVAL |
|
|
1053 | |
1417 | |
1054 | SV *max_depth (SV *self, int max_depth = 0x80000000UL) |
1418 | void max_depth (JSON *self, UV max_depth = 0x80000000UL) |
1055 | CODE: |
1419 | PPCODE: |
1056 | { |
1420 | { |
1057 | UV *uv = SvJSON (self); |
|
|
1058 | UV log2 = 0; |
1421 | UV log2 = 0; |
1059 | |
1422 | |
1060 | if (max_depth > 0x80000000UL) max_depth = 0x80000000UL; |
1423 | if (max_depth > 0x80000000UL) max_depth = 0x80000000UL; |
1061 | |
1424 | |
1062 | while ((1UL << log2) < max_depth) |
1425 | while ((1UL << log2) < max_depth) |
1063 | ++log2; |
1426 | ++log2; |
1064 | |
1427 | |
1065 | *uv = *uv & ~F_MAXDEPTH | (log2 << S_MAXDEPTH); |
1428 | self->flags = self->flags & ~F_MAXDEPTH | (log2 << S_MAXDEPTH); |
1066 | |
1429 | |
1067 | RETVAL = newSVsv (self); |
1430 | XPUSHs (ST (0)); |
1068 | } |
1431 | } |
1069 | OUTPUT: |
|
|
1070 | RETVAL |
|
|
1071 | |
1432 | |
1072 | void encode (SV *self, SV *scalar) |
1433 | void max_size (JSON *self, UV max_size = 0) |
1073 | PPCODE: |
1434 | PPCODE: |
1074 | XPUSHs (encode_json (scalar, *SvJSON (self))); |
1435 | { |
|
|
1436 | UV log2 = 0; |
1075 | |
1437 | |
1076 | void decode (SV *self, SV *jsonstr) |
1438 | if (max_size > 0x80000000UL) max_size = 0x80000000UL; |
|
|
1439 | if (max_size == 1) max_size = 2; |
|
|
1440 | |
|
|
1441 | while ((1UL << log2) < max_size) |
|
|
1442 | ++log2; |
|
|
1443 | |
|
|
1444 | self->flags = self->flags & ~F_MAXSIZE | (log2 << S_MAXSIZE); |
|
|
1445 | |
|
|
1446 | XPUSHs (ST (0)); |
|
|
1447 | } |
|
|
1448 | |
|
|
1449 | void filter_json_object (JSON *self, SV *cb = &PL_sv_undef) |
1077 | PPCODE: |
1450 | PPCODE: |
|
|
1451 | { |
|
|
1452 | SvREFCNT_dec (self->cb_object); |
|
|
1453 | self->cb_object = SvOK (cb) ? newSVsv (cb) : 0; |
|
|
1454 | |
|
|
1455 | XPUSHs (ST (0)); |
|
|
1456 | } |
|
|
1457 | |
|
|
1458 | void filter_json_single_key_object (JSON *self, SV *key, SV *cb = &PL_sv_undef) |
|
|
1459 | PPCODE: |
|
|
1460 | { |
|
|
1461 | if (!self->cb_sk_object) |
|
|
1462 | self->cb_sk_object = newHV (); |
|
|
1463 | |
|
|
1464 | if (SvOK (cb)) |
|
|
1465 | hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0); |
|
|
1466 | else |
|
|
1467 | { |
|
|
1468 | hv_delete_ent (self->cb_sk_object, key, G_DISCARD, 0); |
|
|
1469 | |
|
|
1470 | if (!HvKEYS (self->cb_sk_object)) |
|
|
1471 | { |
|
|
1472 | SvREFCNT_dec (self->cb_sk_object); |
|
|
1473 | self->cb_sk_object = 0; |
|
|
1474 | } |
|
|
1475 | } |
|
|
1476 | |
|
|
1477 | XPUSHs (ST (0)); |
|
|
1478 | } |
|
|
1479 | |
|
|
1480 | void encode (JSON *self, SV *scalar) |
|
|
1481 | PPCODE: |
|
|
1482 | XPUSHs (encode_json (scalar, self)); |
|
|
1483 | |
|
|
1484 | void decode (JSON *self, SV *jsonstr) |
|
|
1485 | PPCODE: |
1078 | XPUSHs (decode_json (jsonstr, *SvJSON (self))); |
1486 | XPUSHs (decode_json (jsonstr, self, 0)); |
|
|
1487 | |
|
|
1488 | void decode_prefix (JSON *self, SV *jsonstr) |
|
|
1489 | PPCODE: |
|
|
1490 | { |
|
|
1491 | UV offset; |
|
|
1492 | EXTEND (SP, 2); |
|
|
1493 | PUSHs (decode_json (jsonstr, self, &offset)); |
|
|
1494 | PUSHs (sv_2mortal (newSVuv (offset))); |
|
|
1495 | } |
|
|
1496 | |
|
|
1497 | void DESTROY (JSON *self) |
|
|
1498 | CODE: |
|
|
1499 | SvREFCNT_dec (self->cb_sk_object); |
|
|
1500 | SvREFCNT_dec (self->cb_object); |
1079 | |
1501 | |
1080 | PROTOTYPES: ENABLE |
1502 | PROTOTYPES: ENABLE |
1081 | |
1503 | |
1082 | void to_json (SV *scalar) |
1504 | void to_json (SV *scalar) |
1083 | ALIAS: |
|
|
1084 | objToJson = 0 |
|
|
1085 | PPCODE: |
1505 | PPCODE: |
|
|
1506 | { |
|
|
1507 | JSON json = { F_DEFAULT | F_UTF8 }; |
1086 | XPUSHs (encode_json (scalar, F_DEFAULT | F_UTF8)); |
1508 | XPUSHs (encode_json (scalar, &json)); |
|
|
1509 | } |
1087 | |
1510 | |
1088 | void from_json (SV *jsonstr) |
1511 | void from_json (SV *jsonstr) |
1089 | ALIAS: |
|
|
1090 | jsonToObj = 0 |
|
|
1091 | PPCODE: |
1512 | PPCODE: |
|
|
1513 | { |
|
|
1514 | JSON json = { F_DEFAULT | F_UTF8 }; |
1092 | XPUSHs (decode_json (jsonstr, F_DEFAULT | F_UTF8)); |
1515 | XPUSHs (decode_json (jsonstr, &json, 0)); |
|
|
1516 | } |
1093 | |
1517 | |