1 | #include "EXTERN.h" |
1 | #include "EXTERN.h" |
2 | #include "perl.h" |
2 | #include "perl.h" |
3 | #include "XSUB.h" |
3 | #include "XSUB.h" |
4 | |
4 | |
5 | #include "assert.h" |
5 | #include <assert.h> |
6 | #include "string.h" |
6 | #include <string.h> |
7 | #include "stdlib.h" |
7 | #include <stdlib.h> |
8 | #include "stdio.h" |
8 | #include <stdio.h> |
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9 | #include <limits.h> |
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10 | #include <float.h> |
9 | |
11 | |
10 | #if defined(__BORLANDC__) || defined(_MSC_VER) |
12 | #if defined(__BORLANDC__) || defined(_MSC_VER) |
11 | # define snprintf _snprintf // C compilers have this in stdio.h |
13 | # define snprintf _snprintf // C compilers have this in stdio.h |
12 | #endif |
14 | #endif |
13 | |
15 | |
14 | // some old perls do not have this, try to make it work, no |
16 | // some old perls do not have this, try to make it work, no |
15 | // guarentees, though. if it breaks, you get to keep the pieces. |
17 | // guarentees, though. if it breaks, you get to keep the pieces. |
16 | #ifndef UTF8_MAXBYTES |
18 | #ifndef UTF8_MAXBYTES |
17 | # define UTF8_MAXBYTES 13 |
19 | # define UTF8_MAXBYTES 13 |
18 | #endif |
20 | #endif |
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21 | |
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22 | #define IVUV_MAXCHARS (sizeof (UV) * CHAR_BIT * 28 / 93 + 2) |
19 | |
23 | |
20 | #define F_ASCII 0x00000001UL |
24 | #define F_ASCII 0x00000001UL |
21 | #define F_LATIN1 0x00000002UL |
25 | #define F_LATIN1 0x00000002UL |
22 | #define F_UTF8 0x00000004UL |
26 | #define F_UTF8 0x00000004UL |
23 | #define F_INDENT 0x00000008UL |
27 | #define F_INDENT 0x00000008UL |
… | |
… | |
25 | #define F_SPACE_BEFORE 0x00000020UL |
29 | #define F_SPACE_BEFORE 0x00000020UL |
26 | #define F_SPACE_AFTER 0x00000040UL |
30 | #define F_SPACE_AFTER 0x00000040UL |
27 | #define F_ALLOW_NONREF 0x00000100UL |
31 | #define F_ALLOW_NONREF 0x00000100UL |
28 | #define F_SHRINK 0x00000200UL |
32 | #define F_SHRINK 0x00000200UL |
29 | #define F_ALLOW_BLESSED 0x00000400UL |
33 | #define F_ALLOW_BLESSED 0x00000400UL |
30 | #define F_CONV_BLESSED 0x00000800UL // NYI |
34 | #define F_CONV_BLESSED 0x00000800UL |
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35 | #define F_RELAXED 0x00001000UL |
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36 | #define F_ALLOW_UNKNOWN 0x00002000UL |
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37 | |
31 | #define F_MAXDEPTH 0xf8000000UL |
38 | #define F_MAXDEPTH 0xf8000000UL |
32 | #define S_MAXDEPTH 27 |
39 | #define S_MAXDEPTH 27 |
33 | #define F_MAXSIZE 0x01f00000UL |
40 | #define F_MAXSIZE 0x01f00000UL |
34 | #define S_MAXSIZE 20 |
41 | #define S_MAXSIZE 20 |
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42 | #define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing |
35 | |
43 | |
36 | #define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH)) |
44 | #define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH)) |
37 | #define DEC_SIZE(flags) (1UL << ((flags & F_MAXSIZE ) >> S_MAXSIZE )) |
45 | #define DEC_SIZE(flags) (1UL << ((flags & F_MAXSIZE ) >> S_MAXSIZE )) |
38 | |
46 | |
39 | #define F_PRETTY F_INDENT | F_SPACE_BEFORE | F_SPACE_AFTER |
47 | #define F_PRETTY F_INDENT | F_SPACE_BEFORE | F_SPACE_AFTER |
… | |
… | |
46 | |
54 | |
47 | #define SB do { |
55 | #define SB do { |
48 | #define SE } while (0) |
56 | #define SE } while (0) |
49 | |
57 | |
50 | #if __GNUC__ >= 3 |
58 | #if __GNUC__ >= 3 |
51 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
59 | # define expect(expr,value) __builtin_expect ((expr), (value)) |
52 | # define inline inline |
60 | # define INLINE static inline |
53 | #else |
61 | #else |
54 | # define expect(expr,value) (expr) |
62 | # define expect(expr,value) (expr) |
55 | # define inline static |
63 | # define INLINE static |
56 | #endif |
64 | #endif |
57 | |
65 | |
58 | #define expect_false(expr) expect ((expr) != 0, 0) |
66 | #define expect_false(expr) expect ((expr) != 0, 0) |
59 | #define expect_true(expr) expect ((expr) != 0, 1) |
67 | #define expect_true(expr) expect ((expr) != 0, 1) |
60 | |
68 | |
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69 | #define IN_RANGE_INC(type,val,beg,end) \ |
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70 | ((unsigned type)((unsigned type)(val) - (unsigned type)(beg)) \ |
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71 | <= (unsigned type)((unsigned type)(end) - (unsigned type)(beg))) |
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72 | |
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73 | #ifdef USE_ITHREADS |
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74 | # define JSON_SLOW 1 |
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75 | # define JSON_STASH (json_stash ? json_stash : gv_stashpv ("JSON::XS", 1)) |
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76 | #else |
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77 | # define JSON_SLOW 0 |
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78 | # define JSON_STASH json_stash |
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79 | #endif |
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80 | |
61 | static HV *json_stash, *json_boolean_stash; // JSON::XS:: |
81 | static HV *json_stash, *json_boolean_stash; // JSON::XS:: |
62 | static SV *json_true, *json_false; |
82 | static SV *json_true, *json_false; |
63 | |
83 | |
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84 | enum { |
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85 | INCR_M_WS = 0, // initial whitespace skipping, must be 0 |
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86 | INCR_M_STR, // inside string |
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87 | INCR_M_BS, // inside backslash |
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88 | INCR_M_JSON // outside anything, count nesting |
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89 | }; |
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90 | |
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91 | #define INCR_DONE(json) (!(json)->incr_nest && (json)->incr_mode == INCR_M_JSON) |
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92 | |
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93 | typedef struct { |
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94 | U32 flags; |
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95 | SV *cb_object; |
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96 | HV *cb_sk_object; |
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97 | |
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98 | // for the incremental parser |
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99 | SV *incr_text; // the source text so far |
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100 | STRLEN incr_pos; // the current offset into the text |
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101 | int incr_nest; // {[]}-nesting level |
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102 | int incr_mode; |
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103 | } JSON; |
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104 | |
64 | ///////////////////////////////////////////////////////////////////////////// |
105 | ///////////////////////////////////////////////////////////////////////////// |
65 | // utility functions |
106 | // utility functions |
66 | |
107 | |
67 | static UV * |
108 | INLINE SV * |
68 | SvJSON (SV *sv) |
109 | get_bool (const char *name) |
69 | { |
110 | { |
70 | if (!(SvROK (sv) && SvOBJECT (SvRV (sv)) && SvSTASH (SvRV (sv)) == json_stash)) |
111 | SV *sv = get_sv (name, 1); |
71 | croak ("object is not of type JSON::XS"); |
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72 | |
112 | |
73 | return &SvUVX (SvRV (sv)); |
113 | SvREADONLY_on (sv); |
74 | } |
114 | SvREADONLY_on (SvRV (sv)); |
75 | |
115 | |
76 | static void |
116 | return sv; |
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117 | } |
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118 | |
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119 | INLINE void |
77 | shrink (SV *sv) |
120 | shrink (SV *sv) |
78 | { |
121 | { |
79 | sv_utf8_downgrade (sv, 1); |
122 | sv_utf8_downgrade (sv, 1); |
80 | if (SvLEN (sv) > SvCUR (sv) + 1) |
123 | if (SvLEN (sv) > SvCUR (sv) + 1) |
81 | { |
124 | { |
… | |
… | |
90 | // decode an utf-8 character and return it, or (UV)-1 in |
133 | // decode an utf-8 character and return it, or (UV)-1 in |
91 | // case of an error. |
134 | // case of an error. |
92 | // we special-case "safe" characters from U+80 .. U+7FF, |
135 | // we special-case "safe" characters from U+80 .. U+7FF, |
93 | // but use the very good perl function to parse anything else. |
136 | // but use the very good perl function to parse anything else. |
94 | // note that we never call this function for a ascii codepoints |
137 | // note that we never call this function for a ascii codepoints |
95 | inline UV |
138 | INLINE UV |
96 | decode_utf8 (unsigned char *s, STRLEN len, STRLEN *clen) |
139 | decode_utf8 (unsigned char *s, STRLEN len, STRLEN *clen) |
97 | { |
140 | { |
98 | if (expect_false (s[0] > 0xdf || s[0] < 0xc2)) |
141 | if (expect_true (len >= 2 |
99 | return utf8n_to_uvuni (s, len, clen, UTF8_CHECK_ONLY); |
142 | && IN_RANGE_INC (char, s[0], 0xc2, 0xdf) |
100 | else if (len > 1 && s[1] >= 0x80 && s[1] <= 0xbf) |
143 | && IN_RANGE_INC (char, s[1], 0x80, 0xbf))) |
101 | { |
144 | { |
102 | *clen = 2; |
145 | *clen = 2; |
103 | return ((s[0] & 0x1f) << 6) | (s[1] & 0x3f); |
146 | return ((s[0] & 0x1f) << 6) | (s[1] & 0x3f); |
104 | } |
147 | } |
105 | else |
148 | else |
106 | { |
149 | return utf8n_to_uvuni (s, len, clen, UTF8_CHECK_ONLY); |
107 | *clen = (STRLEN)-1; |
150 | } |
108 | return (UV)-1; |
151 | |
109 | } |
152 | // likewise for encoding, also never called for ascii codepoints |
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153 | // this function takes advantage of this fact, although current gccs |
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154 | // seem to optimise the check for >= 0x80 away anyways |
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155 | INLINE unsigned char * |
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156 | encode_utf8 (unsigned char *s, UV ch) |
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157 | { |
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158 | if (expect_false (ch < 0x000080)) |
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159 | *s++ = ch; |
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160 | else if (expect_true (ch < 0x000800)) |
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161 | *s++ = 0xc0 | ( ch >> 6), |
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162 | *s++ = 0x80 | ( ch & 0x3f); |
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163 | else if ( ch < 0x010000) |
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164 | *s++ = 0xe0 | ( ch >> 12), |
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165 | *s++ = 0x80 | ((ch >> 6) & 0x3f), |
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166 | *s++ = 0x80 | ( ch & 0x3f); |
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167 | else if ( ch < 0x110000) |
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168 | *s++ = 0xf0 | ( ch >> 18), |
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169 | *s++ = 0x80 | ((ch >> 12) & 0x3f), |
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170 | *s++ = 0x80 | ((ch >> 6) & 0x3f), |
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171 | *s++ = 0x80 | ( ch & 0x3f); |
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172 | |
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173 | return s; |
110 | } |
174 | } |
111 | |
175 | |
112 | ///////////////////////////////////////////////////////////////////////////// |
176 | ///////////////////////////////////////////////////////////////////////////// |
113 | // encoder |
177 | // encoder |
114 | |
178 | |
… | |
… | |
116 | typedef struct |
180 | typedef struct |
117 | { |
181 | { |
118 | char *cur; // SvPVX (sv) + current output position |
182 | char *cur; // SvPVX (sv) + current output position |
119 | char *end; // SvEND (sv) |
183 | char *end; // SvEND (sv) |
120 | SV *sv; // result scalar |
184 | SV *sv; // result scalar |
121 | U32 flags; // F_* |
185 | JSON json; |
122 | U32 indent; // indentation level |
186 | U32 indent; // indentation level |
123 | U32 maxdepth; // max. indentation/recursion level |
187 | U32 maxdepth; // max. indentation/recursion level |
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188 | UV limit; // escape character values >= this value when encoding |
124 | } enc_t; |
189 | } enc_t; |
125 | |
190 | |
126 | inline void |
191 | INLINE void |
127 | need (enc_t *enc, STRLEN len) |
192 | need (enc_t *enc, STRLEN len) |
128 | { |
193 | { |
129 | if (expect_false (enc->cur + len >= enc->end)) |
194 | if (expect_false (enc->cur + len >= enc->end)) |
130 | { |
195 | { |
131 | STRLEN cur = enc->cur - SvPVX (enc->sv); |
196 | STRLEN cur = enc->cur - SvPVX (enc->sv); |
… | |
… | |
133 | enc->cur = SvPVX (enc->sv) + cur; |
198 | enc->cur = SvPVX (enc->sv) + cur; |
134 | enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1; |
199 | enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1; |
135 | } |
200 | } |
136 | } |
201 | } |
137 | |
202 | |
138 | inline void |
203 | INLINE void |
139 | encode_ch (enc_t *enc, char ch) |
204 | encode_ch (enc_t *enc, char ch) |
140 | { |
205 | { |
141 | need (enc, 1); |
206 | need (enc, 1); |
142 | *enc->cur++ = ch; |
207 | *enc->cur++ = ch; |
143 | } |
208 | } |
… | |
… | |
197 | { |
262 | { |
198 | uch = ch; |
263 | uch = ch; |
199 | clen = 1; |
264 | clen = 1; |
200 | } |
265 | } |
201 | |
266 | |
202 | if (uch > 0x10FFFFUL) |
267 | if (uch < 0x80/*0x20*/ || uch >= enc->limit) |
203 | croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch); |
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204 | |
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205 | if (uch < 0x80 || enc->flags & F_ASCII || (enc->flags & F_LATIN1 && uch > 0xFF)) |
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206 | { |
268 | { |
207 | if (uch > 0xFFFFUL) |
269 | if (uch >= 0x10000UL) |
208 | { |
270 | { |
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271 | if (uch >= 0x110000UL) |
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272 | croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch); |
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273 | |
209 | need (enc, len += 11); |
274 | need (enc, len += 11); |
210 | sprintf (enc->cur, "\\u%04x\\u%04x", |
275 | sprintf (enc->cur, "\\u%04x\\u%04x", |
211 | (int)((uch - 0x10000) / 0x400 + 0xD800), |
276 | (int)((uch - 0x10000) / 0x400 + 0xD800), |
212 | (int)((uch - 0x10000) % 0x400 + 0xDC00)); |
277 | (int)((uch - 0x10000) % 0x400 + 0xDC00)); |
213 | enc->cur += 12; |
278 | enc->cur += 12; |
… | |
… | |
224 | *enc->cur++ = hexdigit [(uch >> 0) & 15]; |
289 | *enc->cur++ = hexdigit [(uch >> 0) & 15]; |
225 | } |
290 | } |
226 | |
291 | |
227 | str += clen; |
292 | str += clen; |
228 | } |
293 | } |
229 | else if (enc->flags & F_LATIN1) |
294 | else if (enc->json.flags & F_LATIN1) |
230 | { |
295 | { |
231 | *enc->cur++ = uch; |
296 | *enc->cur++ = uch; |
232 | str += clen; |
297 | str += clen; |
233 | } |
298 | } |
234 | else if (is_utf8) |
299 | else if (is_utf8) |
… | |
… | |
241 | while (--clen); |
306 | while (--clen); |
242 | } |
307 | } |
243 | else |
308 | else |
244 | { |
309 | { |
245 | need (enc, len += UTF8_MAXBYTES - 1); // never more than 11 bytes needed |
310 | need (enc, len += UTF8_MAXBYTES - 1); // never more than 11 bytes needed |
246 | enc->cur = uvuni_to_utf8_flags (enc->cur, uch, 0); |
311 | enc->cur = encode_utf8 (enc->cur, uch); |
247 | ++str; |
312 | ++str; |
248 | } |
313 | } |
249 | } |
314 | } |
250 | } |
315 | } |
251 | } |
316 | } |
252 | |
317 | |
253 | --len; |
318 | --len; |
254 | } |
319 | } |
255 | } |
320 | } |
256 | |
321 | |
257 | inline void |
322 | INLINE void |
258 | encode_indent (enc_t *enc) |
323 | encode_indent (enc_t *enc) |
259 | { |
324 | { |
260 | if (enc->flags & F_INDENT) |
325 | if (enc->json.flags & F_INDENT) |
261 | { |
326 | { |
262 | int spaces = enc->indent * INDENT_STEP; |
327 | int spaces = enc->indent * INDENT_STEP; |
263 | |
328 | |
264 | need (enc, spaces); |
329 | need (enc, spaces); |
265 | memset (enc->cur, ' ', spaces); |
330 | memset (enc->cur, ' ', spaces); |
266 | enc->cur += spaces; |
331 | enc->cur += spaces; |
267 | } |
332 | } |
268 | } |
333 | } |
269 | |
334 | |
270 | inline void |
335 | INLINE void |
271 | encode_space (enc_t *enc) |
336 | encode_space (enc_t *enc) |
272 | { |
337 | { |
273 | need (enc, 1); |
338 | need (enc, 1); |
274 | encode_ch (enc, ' '); |
339 | encode_ch (enc, ' '); |
275 | } |
340 | } |
276 | |
341 | |
277 | inline void |
342 | INLINE void |
278 | encode_nl (enc_t *enc) |
343 | encode_nl (enc_t *enc) |
279 | { |
344 | { |
280 | if (enc->flags & F_INDENT) |
345 | if (enc->json.flags & F_INDENT) |
281 | { |
346 | { |
282 | need (enc, 1); |
347 | need (enc, 1); |
283 | encode_ch (enc, '\n'); |
348 | encode_ch (enc, '\n'); |
284 | } |
349 | } |
285 | } |
350 | } |
286 | |
351 | |
287 | inline void |
352 | INLINE void |
288 | encode_comma (enc_t *enc) |
353 | encode_comma (enc_t *enc) |
289 | { |
354 | { |
290 | encode_ch (enc, ','); |
355 | encode_ch (enc, ','); |
291 | |
356 | |
292 | if (enc->flags & F_INDENT) |
357 | if (enc->json.flags & F_INDENT) |
293 | encode_nl (enc); |
358 | encode_nl (enc); |
294 | else if (enc->flags & F_SPACE_AFTER) |
359 | else if (enc->json.flags & F_SPACE_AFTER) |
295 | encode_space (enc); |
360 | encode_space (enc); |
296 | } |
361 | } |
297 | |
362 | |
298 | static void encode_sv (enc_t *enc, SV *sv); |
363 | static void encode_sv (enc_t *enc, SV *sv); |
299 | |
364 | |
… | |
… | |
303 | int i, len = av_len (av); |
368 | int i, len = av_len (av); |
304 | |
369 | |
305 | if (enc->indent >= enc->maxdepth) |
370 | if (enc->indent >= enc->maxdepth) |
306 | croak ("data structure too deep (hit recursion limit)"); |
371 | croak ("data structure too deep (hit recursion limit)"); |
307 | |
372 | |
308 | encode_ch (enc, '['); encode_nl (enc); |
373 | encode_ch (enc, '['); |
309 | ++enc->indent; |
374 | |
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375 | if (len >= 0) |
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376 | { |
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377 | encode_nl (enc); ++enc->indent; |
310 | |
378 | |
311 | for (i = 0; i <= len; ++i) |
379 | for (i = 0; i <= len; ++i) |
312 | { |
380 | { |
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381 | SV **svp = av_fetch (av, i, 0); |
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382 | |
313 | encode_indent (enc); |
383 | encode_indent (enc); |
314 | encode_sv (enc, *av_fetch (av, i, 0)); |
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315 | |
384 | |
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385 | if (svp) |
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386 | encode_sv (enc, *svp); |
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387 | else |
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388 | encode_str (enc, "null", 4, 0); |
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389 | |
316 | if (i < len) |
390 | if (i < len) |
317 | encode_comma (enc); |
391 | encode_comma (enc); |
318 | } |
392 | } |
319 | |
393 | |
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394 | encode_nl (enc); --enc->indent; encode_indent (enc); |
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395 | } |
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396 | |
320 | encode_nl (enc); |
397 | encode_ch (enc, ']'); |
321 | |
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322 | --enc->indent; |
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323 | encode_indent (enc); encode_ch (enc, ']'); |
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324 | } |
398 | } |
325 | |
399 | |
326 | static void |
400 | static void |
327 | encode_he (enc_t *enc, HE *he) |
401 | encode_hk (enc_t *enc, HE *he) |
328 | { |
402 | { |
329 | encode_ch (enc, '"'); |
403 | encode_ch (enc, '"'); |
330 | |
404 | |
331 | if (HeKLEN (he) == HEf_SVKEY) |
405 | if (HeKLEN (he) == HEf_SVKEY) |
332 | { |
406 | { |
… | |
… | |
342 | else |
416 | else |
343 | encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he)); |
417 | encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he)); |
344 | |
418 | |
345 | encode_ch (enc, '"'); |
419 | encode_ch (enc, '"'); |
346 | |
420 | |
347 | if (enc->flags & F_SPACE_BEFORE) encode_space (enc); |
421 | if (enc->json.flags & F_SPACE_BEFORE) encode_space (enc); |
348 | encode_ch (enc, ':'); |
422 | encode_ch (enc, ':'); |
349 | if (enc->flags & F_SPACE_AFTER ) encode_space (enc); |
423 | if (enc->json.flags & F_SPACE_AFTER ) encode_space (enc); |
350 | encode_sv (enc, HeVAL (he)); |
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351 | } |
424 | } |
352 | |
425 | |
353 | // compare hash entries, used when all keys are bytestrings |
426 | // compare hash entries, used when all keys are bytestrings |
354 | static int |
427 | static int |
355 | he_cmp_fast (const void *a_, const void *b_) |
428 | he_cmp_fast (const void *a_, const void *b_) |
… | |
… | |
360 | HE *b = *(HE **)b_; |
433 | HE *b = *(HE **)b_; |
361 | |
434 | |
362 | STRLEN la = HeKLEN (a); |
435 | STRLEN la = HeKLEN (a); |
363 | STRLEN lb = HeKLEN (b); |
436 | STRLEN lb = HeKLEN (b); |
364 | |
437 | |
365 | if (!(cmp = memcmp (HeKEY (a), HeKEY (b), la < lb ? la : lb))) |
438 | if (!(cmp = memcmp (HeKEY (b), HeKEY (a), lb < la ? lb : la))) |
366 | cmp = la - lb; |
439 | cmp = lb - la; |
367 | |
440 | |
368 | return cmp; |
441 | return cmp; |
369 | } |
442 | } |
370 | |
443 | |
371 | // compare hash entries, used when some keys are sv's or utf-x |
444 | // compare hash entries, used when some keys are sv's or utf-x |
372 | static int |
445 | static int |
373 | he_cmp_slow (const void *a, const void *b) |
446 | he_cmp_slow (const void *a, const void *b) |
374 | { |
447 | { |
375 | return sv_cmp (HeSVKEY_force (*(HE **)a), HeSVKEY_force (*(HE **)b)); |
448 | return sv_cmp (HeSVKEY_force (*(HE **)b), HeSVKEY_force (*(HE **)a)); |
376 | } |
449 | } |
377 | |
450 | |
378 | static void |
451 | static void |
379 | encode_hv (enc_t *enc, HV *hv) |
452 | encode_hv (enc_t *enc, HV *hv) |
380 | { |
453 | { |
381 | int count, i; |
454 | HE *he; |
382 | |
455 | |
383 | if (enc->indent >= enc->maxdepth) |
456 | if (enc->indent >= enc->maxdepth) |
384 | croak ("data structure too deep (hit recursion limit)"); |
457 | croak ("data structure too deep (hit recursion limit)"); |
385 | |
458 | |
386 | encode_ch (enc, '{'); encode_nl (enc); ++enc->indent; |
459 | encode_ch (enc, '{'); |
387 | |
460 | |
388 | if ((count = hv_iterinit (hv))) |
|
|
389 | { |
|
|
390 | // for canonical output we have to sort by keys first |
461 | // for canonical output we have to sort by keys first |
391 | // actually, this is mostly due to the stupid so-called |
462 | // actually, this is mostly due to the stupid so-called |
392 | // security workaround added somewhere in 5.8.x. |
463 | // security workaround added somewhere in 5.8.x. |
393 | // that randomises hash orderings |
464 | // that randomises hash orderings |
394 | if (enc->flags & F_CANONICAL) |
465 | if (enc->json.flags & F_CANONICAL) |
|
|
466 | { |
|
|
467 | int count = hv_iterinit (hv); |
|
|
468 | |
|
|
469 | if (SvMAGICAL (hv)) |
395 | { |
470 | { |
|
|
471 | // need to count by iterating. could improve by dynamically building the vector below |
|
|
472 | // but I don't care for the speed of this special case. |
|
|
473 | // note also that we will run into undefined behaviour when the two iterations |
|
|
474 | // do not result in the same count, something I might care for in some later release. |
|
|
475 | |
|
|
476 | count = 0; |
|
|
477 | while (hv_iternext (hv)) |
|
|
478 | ++count; |
|
|
479 | |
|
|
480 | hv_iterinit (hv); |
|
|
481 | } |
|
|
482 | |
|
|
483 | if (count) |
|
|
484 | { |
396 | int fast = 1; |
485 | int i, fast = 1; |
397 | HE *he; |
|
|
398 | #if defined(__BORLANDC__) || defined(_MSC_VER) |
486 | #if defined(__BORLANDC__) || defined(_MSC_VER) |
399 | HE **hes = _alloca (count * sizeof (HE)); |
487 | HE **hes = _alloca (count * sizeof (HE)); |
400 | #else |
488 | #else |
401 | HE *hes [count]; // if your compiler dies here, you need to enable C99 mode |
489 | HE *hes [count]; // if your compiler dies here, you need to enable C99 mode |
402 | #endif |
490 | #endif |
… | |
… | |
429 | |
517 | |
430 | FREETMPS; |
518 | FREETMPS; |
431 | LEAVE; |
519 | LEAVE; |
432 | } |
520 | } |
433 | |
521 | |
434 | for (i = 0; i < count; ++i) |
522 | encode_nl (enc); ++enc->indent; |
|
|
523 | |
|
|
524 | while (count--) |
435 | { |
525 | { |
436 | encode_indent (enc); |
526 | encode_indent (enc); |
|
|
527 | he = hes [count]; |
437 | encode_he (enc, hes [i]); |
528 | encode_hk (enc, he); |
|
|
529 | encode_sv (enc, expect_false (SvMAGICAL (hv)) ? hv_iterval (hv, he) : HeVAL (he)); |
438 | |
530 | |
439 | if (i < count - 1) |
531 | if (count) |
440 | encode_comma (enc); |
532 | encode_comma (enc); |
441 | } |
533 | } |
442 | |
534 | |
443 | encode_nl (enc); |
535 | encode_nl (enc); --enc->indent; encode_indent (enc); |
444 | } |
536 | } |
|
|
537 | } |
445 | else |
538 | else |
|
|
539 | { |
|
|
540 | if (hv_iterinit (hv) || SvMAGICAL (hv)) |
|
|
541 | if ((he = hv_iternext (hv))) |
446 | { |
542 | { |
447 | HE *he = hv_iternext (hv); |
543 | encode_nl (enc); ++enc->indent; |
448 | |
544 | |
449 | for (;;) |
545 | for (;;) |
450 | { |
546 | { |
451 | encode_indent (enc); |
547 | encode_indent (enc); |
452 | encode_he (enc, he); |
548 | encode_hk (enc, he); |
|
|
549 | encode_sv (enc, expect_false (SvMAGICAL (hv)) ? hv_iterval (hv, he) : HeVAL (he)); |
453 | |
550 | |
454 | if (!(he = hv_iternext (hv))) |
551 | if (!(he = hv_iternext (hv))) |
455 | break; |
552 | break; |
456 | |
553 | |
457 | encode_comma (enc); |
554 | encode_comma (enc); |
458 | } |
555 | } |
459 | |
556 | |
460 | encode_nl (enc); |
557 | encode_nl (enc); --enc->indent; encode_indent (enc); |
461 | } |
558 | } |
462 | } |
559 | } |
463 | |
560 | |
464 | --enc->indent; encode_indent (enc); encode_ch (enc, '}'); |
561 | encode_ch (enc, '}'); |
465 | } |
562 | } |
466 | |
563 | |
467 | // encode objects, arrays and special \0=false and \1=true values. |
564 | // encode objects, arrays and special \0=false and \1=true values. |
468 | static void |
565 | static void |
469 | encode_rv (enc_t *enc, SV *sv) |
566 | encode_rv (enc_t *enc, SV *sv) |
… | |
… | |
473 | SvGETMAGIC (sv); |
570 | SvGETMAGIC (sv); |
474 | svt = SvTYPE (sv); |
571 | svt = SvTYPE (sv); |
475 | |
572 | |
476 | if (expect_false (SvOBJECT (sv))) |
573 | if (expect_false (SvOBJECT (sv))) |
477 | { |
574 | { |
|
|
575 | HV *stash = !JSON_SLOW || json_boolean_stash |
|
|
576 | ? json_boolean_stash |
|
|
577 | : gv_stashpv ("JSON::XS::Boolean", 1); |
|
|
578 | |
478 | if (SvSTASH (sv) == json_boolean_stash) |
579 | if (SvSTASH (sv) == stash) |
479 | { |
580 | { |
480 | if (SvIV (sv) == 0) |
581 | if (SvIV (sv)) |
|
|
582 | encode_str (enc, "true", 4, 0); |
|
|
583 | else |
481 | encode_str (enc, "false", 5, 0); |
584 | encode_str (enc, "false", 5, 0); |
482 | else |
|
|
483 | encode_str (enc, "true", 4, 0); |
|
|
484 | } |
585 | } |
485 | else |
586 | else |
486 | { |
587 | { |
487 | #if 0 |
588 | #if 0 |
488 | if (0 && sv_derived_from (rv, "JSON::Literal")) |
589 | if (0 && sv_derived_from (rv, "JSON::Literal")) |
489 | { |
590 | { |
490 | // not yet |
591 | // not yet |
491 | } |
592 | } |
492 | #endif |
593 | #endif |
493 | if (enc->flags & F_CONV_BLESSED) |
594 | if (enc->json.flags & F_CONV_BLESSED) |
494 | { |
595 | { |
495 | // we re-bless the reference to get overload and other niceties right |
596 | // we re-bless the reference to get overload and other niceties right |
496 | GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 1); |
597 | GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 0); |
497 | |
598 | |
498 | if (to_json) |
599 | if (to_json) |
499 | { |
600 | { |
500 | dSP; |
601 | dSP; |
501 | ENTER; |
602 | |
502 | SAVETMPS; |
|
|
503 | PUSHMARK (SP); |
603 | ENTER; SAVETMPS; PUSHMARK (SP); |
504 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv))); |
604 | XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv))); |
505 | |
605 | |
506 | // calling with G_SCALAR ensures that we always get a 1 reutrn value |
606 | // calling with G_SCALAR ensures that we always get a 1 return value |
507 | // check anyways. |
|
|
508 | PUTBACK; |
607 | PUTBACK; |
509 | assert (1 == call_sv ((SV *)GvCV (to_json), G_SCALAR)); |
608 | call_sv ((SV *)GvCV (to_json), G_SCALAR); |
510 | SPAGAIN; |
609 | SPAGAIN; |
511 | |
610 | |
|
|
611 | // catch this surprisingly common error |
|
|
612 | if (SvROK (TOPs) && SvRV (TOPs) == sv) |
|
|
613 | croak ("%s::TO_JSON method returned same object as was passed instead of a new one", HvNAME (SvSTASH (sv))); |
|
|
614 | |
|
|
615 | sv = POPs; |
|
|
616 | PUTBACK; |
|
|
617 | |
512 | encode_sv (enc, POPs); |
618 | encode_sv (enc, sv); |
513 | |
619 | |
514 | FREETMPS; |
620 | FREETMPS; LEAVE; |
515 | LEAVE; |
|
|
516 | } |
621 | } |
517 | else if (enc->flags & F_ALLOW_BLESSED) |
622 | else if (enc->json.flags & F_ALLOW_BLESSED) |
518 | encode_str (enc, "null", 4, 0); |
623 | encode_str (enc, "null", 4, 0); |
519 | else |
624 | else |
520 | croak ("encountered object '%s', but neither allow_blessed enabled nor TO_JSON method available on it", |
625 | croak ("encountered object '%s', but neither allow_blessed enabled nor TO_JSON method available on it", |
521 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
626 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
522 | } |
627 | } |
523 | else if (enc->flags & F_ALLOW_BLESSED) |
628 | else if (enc->json.flags & F_ALLOW_BLESSED) |
524 | encode_str (enc, "null", 4, 0); |
629 | encode_str (enc, "null", 4, 0); |
525 | else |
630 | else |
526 | croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled", |
631 | croak ("encountered object '%s', but neither allow_blessed nor convert_blessed settings are enabled", |
527 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
632 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
528 | } |
633 | } |
… | |
… | |
531 | encode_hv (enc, (HV *)sv); |
636 | encode_hv (enc, (HV *)sv); |
532 | else if (svt == SVt_PVAV) |
637 | else if (svt == SVt_PVAV) |
533 | encode_av (enc, (AV *)sv); |
638 | encode_av (enc, (AV *)sv); |
534 | else if (svt < SVt_PVAV) |
639 | else if (svt < SVt_PVAV) |
535 | { |
640 | { |
536 | if (SvNIOK (sv) && SvIV (sv) == 0) |
641 | STRLEN len = 0; |
|
|
642 | char *pv = svt ? SvPV (sv, len) : 0; |
|
|
643 | |
|
|
644 | if (len == 1 && *pv == '1') |
|
|
645 | encode_str (enc, "true", 4, 0); |
|
|
646 | else if (len == 1 && *pv == '0') |
537 | encode_str (enc, "false", 5, 0); |
647 | encode_str (enc, "false", 5, 0); |
538 | else if (SvNIOK (sv) && SvIV (sv) == 1) |
648 | else if (enc->json.flags & F_ALLOW_UNKNOWN) |
539 | encode_str (enc, "true", 4, 0); |
649 | encode_str (enc, "null", 4, 0); |
540 | else |
650 | else |
541 | croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1", |
651 | croak ("cannot encode reference to scalar '%s' unless the scalar is 0 or 1", |
542 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
652 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
543 | } |
653 | } |
|
|
654 | else if (enc->json.flags & F_ALLOW_UNKNOWN) |
|
|
655 | encode_str (enc, "null", 4, 0); |
544 | else |
656 | else |
545 | croak ("encountered %s, but JSON can only represent references to arrays or hashes", |
657 | croak ("encountered %s, but JSON can only represent references to arrays or hashes", |
546 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
658 | SvPV_nolen (sv_2mortal (newRV_inc (sv)))); |
547 | } |
659 | } |
548 | |
660 | |
… | |
… | |
566 | Gconvert (SvNVX (sv), NV_DIG, 0, enc->cur); |
678 | Gconvert (SvNVX (sv), NV_DIG, 0, enc->cur); |
567 | enc->cur += strlen (enc->cur); |
679 | enc->cur += strlen (enc->cur); |
568 | } |
680 | } |
569 | else if (SvIOKp (sv)) |
681 | else if (SvIOKp (sv)) |
570 | { |
682 | { |
571 | // we assume we can always read an IV as a UV |
683 | // we assume we can always read an IV as a UV and vice versa |
572 | if (SvUV (sv) & ~(UV)0x7fff) |
684 | // we assume two's complement |
573 | { |
685 | // we assume no aliasing issues in the union |
574 | // large integer, use the (rather slow) snprintf way. |
686 | if (SvIsUV (sv) ? SvUVX (sv) <= 59000 |
575 | need (enc, sizeof (UV) * 3); |
687 | : SvIVX (sv) <= 59000 && SvIVX (sv) >= -59000) |
576 | enc->cur += |
|
|
577 | SvIsUV(sv) |
|
|
578 | ? snprintf (enc->cur, sizeof (UV) * 3, "%"UVuf, (UV)SvUVX (sv)) |
|
|
579 | : snprintf (enc->cur, sizeof (UV) * 3, "%"IVdf, (IV)SvIVX (sv)); |
|
|
580 | } |
|
|
581 | else |
|
|
582 | { |
688 | { |
583 | // optimise the "small number case" |
689 | // optimise the "small number case" |
584 | // code will likely be branchless and use only a single multiplication |
690 | // code will likely be branchless and use only a single multiplication |
|
|
691 | // works for numbers up to 59074 |
585 | I32 i = SvIV (sv); |
692 | I32 i = SvIVX (sv); |
586 | U32 u; |
693 | U32 u; |
587 | char digit, nz = 0; |
694 | char digit, nz = 0; |
588 | |
695 | |
589 | need (enc, 6); |
696 | need (enc, 6); |
590 | |
697 | |
… | |
… | |
596 | |
703 | |
597 | // now output digit by digit, each time masking out the integer part |
704 | // now output digit by digit, each time masking out the integer part |
598 | // and multiplying by 5 while moving the decimal point one to the right, |
705 | // and multiplying by 5 while moving the decimal point one to the right, |
599 | // resulting in a net multiplication by 10. |
706 | // resulting in a net multiplication by 10. |
600 | // we always write the digit to memory but conditionally increment |
707 | // we always write the digit to memory but conditionally increment |
601 | // the pointer, to ease the usage of conditional move instructions. |
708 | // the pointer, to enable the use of conditional move instructions. |
602 | digit = u >> 28; *enc->cur = digit + '0'; enc->cur += (nz = nz || digit); u = (u & 0xfffffff) * 5; |
709 | digit = u >> 28; *enc->cur = digit + '0'; enc->cur += (nz = nz || digit); u = (u & 0xfffffffUL) * 5; |
603 | digit = u >> 27; *enc->cur = digit + '0'; enc->cur += (nz = nz || digit); u = (u & 0x7ffffff) * 5; |
710 | digit = u >> 27; *enc->cur = digit + '0'; enc->cur += (nz = nz || digit); u = (u & 0x7ffffffUL) * 5; |
604 | digit = u >> 26; *enc->cur = digit + '0'; enc->cur += (nz = nz || digit); u = (u & 0x3ffffff) * 5; |
711 | digit = u >> 26; *enc->cur = digit + '0'; enc->cur += (nz = nz || digit); u = (u & 0x3ffffffUL) * 5; |
605 | digit = u >> 25; *enc->cur = digit + '0'; enc->cur += (nz = nz || digit); u = (u & 0x1ffffff) * 5; |
712 | digit = u >> 25; *enc->cur = digit + '0'; enc->cur += (nz = nz || digit); u = (u & 0x1ffffffUL) * 5; |
606 | digit = u >> 24; *enc->cur = digit + '0'; enc->cur += 1; // correctly generate '0' |
713 | digit = u >> 24; *enc->cur = digit + '0'; enc->cur += 1; // correctly generate '0' |
607 | } |
714 | } |
|
|
715 | else |
|
|
716 | { |
|
|
717 | // large integer, use the (rather slow) snprintf way. |
|
|
718 | need (enc, IVUV_MAXCHARS); |
|
|
719 | enc->cur += |
|
|
720 | SvIsUV(sv) |
|
|
721 | ? snprintf (enc->cur, IVUV_MAXCHARS, "%"UVuf, (UV)SvUVX (sv)) |
|
|
722 | : snprintf (enc->cur, IVUV_MAXCHARS, "%"IVdf, (IV)SvIVX (sv)); |
|
|
723 | } |
608 | } |
724 | } |
609 | else if (SvROK (sv)) |
725 | else if (SvROK (sv)) |
610 | encode_rv (enc, SvRV (sv)); |
726 | encode_rv (enc, SvRV (sv)); |
611 | else if (!SvOK (sv)) |
727 | else if (!SvOK (sv) || enc->json.flags & F_ALLOW_UNKNOWN) |
612 | encode_str (enc, "null", 4, 0); |
728 | encode_str (enc, "null", 4, 0); |
613 | else |
729 | else |
614 | croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this", |
730 | croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this", |
615 | SvPV_nolen (sv), SvFLAGS (sv)); |
731 | SvPV_nolen (sv), SvFLAGS (sv)); |
616 | } |
732 | } |
617 | |
733 | |
618 | static SV * |
734 | static SV * |
619 | encode_json (SV *scalar, U32 flags) |
735 | encode_json (SV *scalar, JSON *json) |
620 | { |
736 | { |
621 | enc_t enc; |
737 | enc_t enc; |
622 | |
738 | |
623 | if (!(flags & F_ALLOW_NONREF) && !SvROK (scalar)) |
739 | if (!(json->flags & F_ALLOW_NONREF) && !SvROK (scalar)) |
624 | croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)"); |
740 | croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)"); |
625 | |
741 | |
626 | enc.flags = flags; |
742 | enc.json = *json; |
627 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
743 | enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
628 | enc.cur = SvPVX (enc.sv); |
744 | enc.cur = SvPVX (enc.sv); |
629 | enc.end = SvEND (enc.sv); |
745 | enc.end = SvEND (enc.sv); |
630 | enc.indent = 0; |
746 | enc.indent = 0; |
631 | enc.maxdepth = DEC_DEPTH (flags); |
747 | enc.maxdepth = DEC_DEPTH (enc.json.flags); |
|
|
748 | enc.limit = enc.json.flags & F_ASCII ? 0x000080UL |
|
|
749 | : enc.json.flags & F_LATIN1 ? 0x000100UL |
|
|
750 | : 0x110000UL; |
632 | |
751 | |
633 | SvPOK_only (enc.sv); |
752 | SvPOK_only (enc.sv); |
634 | encode_sv (&enc, scalar); |
753 | encode_sv (&enc, scalar); |
635 | |
754 | |
636 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
755 | SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
637 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
756 | *SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
638 | |
757 | |
639 | if (!(flags & (F_ASCII | F_LATIN1 | F_UTF8))) |
758 | if (!(enc.json.flags & (F_ASCII | F_LATIN1 | F_UTF8))) |
640 | SvUTF8_on (enc.sv); |
759 | SvUTF8_on (enc.sv); |
641 | |
760 | |
642 | if (enc.flags & F_SHRINK) |
761 | if (enc.json.flags & F_SHRINK) |
643 | shrink (enc.sv); |
762 | shrink (enc.sv); |
644 | |
763 | |
645 | return enc.sv; |
764 | return enc.sv; |
646 | } |
765 | } |
647 | |
766 | |
… | |
… | |
652 | typedef struct |
771 | typedef struct |
653 | { |
772 | { |
654 | char *cur; // current parser pointer |
773 | char *cur; // current parser pointer |
655 | char *end; // end of input string |
774 | char *end; // end of input string |
656 | const char *err; // parse error, if != 0 |
775 | const char *err; // parse error, if != 0 |
657 | U32 flags; // F_* |
776 | JSON json; |
658 | U32 depth; // recursion depth |
777 | U32 depth; // recursion depth |
659 | U32 maxdepth; // recursion depth limit |
778 | U32 maxdepth; // recursion depth limit |
660 | } dec_t; |
779 | } dec_t; |
661 | |
780 | |
662 | inline void |
781 | INLINE void |
|
|
782 | decode_comment (dec_t *dec) |
|
|
783 | { |
|
|
784 | // only '#'-style comments allowed a.t.m. |
|
|
785 | |
|
|
786 | while (*dec->cur && *dec->cur != 0x0a && *dec->cur != 0x0d) |
|
|
787 | ++dec->cur; |
|
|
788 | } |
|
|
789 | |
|
|
790 | INLINE void |
663 | decode_ws (dec_t *dec) |
791 | decode_ws (dec_t *dec) |
664 | { |
792 | { |
665 | for (;;) |
793 | for (;;) |
666 | { |
794 | { |
667 | char ch = *dec->cur; |
795 | char ch = *dec->cur; |
668 | |
796 | |
669 | if (ch > 0x20 |
797 | if (ch > 0x20) |
|
|
798 | { |
|
|
799 | if (expect_false (ch == '#')) |
|
|
800 | { |
|
|
801 | if (dec->json.flags & F_RELAXED) |
|
|
802 | decode_comment (dec); |
|
|
803 | else |
|
|
804 | break; |
|
|
805 | } |
|
|
806 | else |
|
|
807 | break; |
|
|
808 | } |
670 | || (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09)) |
809 | else if (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09) |
671 | break; |
810 | break; // parse error, but let higher level handle it, gives better error messages |
672 | |
811 | |
673 | ++dec->cur; |
812 | ++dec->cur; |
674 | } |
813 | } |
675 | } |
814 | } |
676 | |
815 | |
… | |
… | |
782 | |
921 | |
783 | if (hi >= 0x80) |
922 | if (hi >= 0x80) |
784 | { |
923 | { |
785 | utf8 = 1; |
924 | utf8 = 1; |
786 | |
925 | |
787 | cur = (char *)uvuni_to_utf8_flags (cur, hi, 0); |
926 | cur = encode_utf8 (cur, hi); |
788 | } |
927 | } |
789 | else |
928 | else |
790 | *cur++ = hi; |
929 | *cur++ = hi; |
791 | } |
930 | } |
792 | break; |
931 | break; |
… | |
… | |
794 | default: |
933 | default: |
795 | --dec_cur; |
934 | --dec_cur; |
796 | ERR ("illegal backslash escape sequence in string"); |
935 | ERR ("illegal backslash escape sequence in string"); |
797 | } |
936 | } |
798 | } |
937 | } |
799 | else if (expect_true (ch >= 0x20 && ch <= 0x7f)) |
938 | else if (expect_true (ch >= 0x20 && ch < 0x80)) |
800 | *cur++ = ch; |
939 | *cur++ = ch; |
801 | else if (ch >= 0x80) |
940 | else if (ch >= 0x80) |
802 | { |
941 | { |
803 | STRLEN clen; |
942 | STRLEN clen; |
804 | UV uch; |
943 | UV uch; |
… | |
… | |
925 | is_nv = 1; |
1064 | is_nv = 1; |
926 | } |
1065 | } |
927 | |
1066 | |
928 | if (!is_nv) |
1067 | if (!is_nv) |
929 | { |
1068 | { |
|
|
1069 | int len = dec->cur - start; |
|
|
1070 | |
930 | // special case the rather common 1..4-digit-int case, assumes 32 bit ints or so |
1071 | // special case the rather common 1..5-digit-int case |
931 | if (*start == '-') |
1072 | if (*start == '-') |
932 | switch (dec->cur - start) |
1073 | switch (len) |
933 | { |
1074 | { |
934 | case 2: return newSViv (-( start [1] - '0' * 1)); |
1075 | case 2: return newSViv (-( start [1] - '0' * 1)); |
935 | case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11)); |
1076 | case 3: return newSViv (-( start [1] * 10 + start [2] - '0' * 11)); |
936 | case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111)); |
1077 | case 4: return newSViv (-( start [1] * 100 + start [2] * 10 + start [3] - '0' * 111)); |
937 | case 5: return newSViv (-(start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111)); |
1078 | case 5: return newSViv (-( start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 1111)); |
|
|
1079 | case 6: return newSViv (-(start [1] * 10000 + start [2] * 1000 + start [3] * 100 + start [4] * 10 + start [5] - '0' * 11111)); |
938 | } |
1080 | } |
939 | else |
1081 | else |
940 | switch (dec->cur - start) |
1082 | switch (len) |
941 | { |
1083 | { |
942 | case 1: return newSViv ( start [0] - '0' * 1); |
1084 | case 1: return newSViv ( start [0] - '0' * 1); |
943 | case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11); |
1085 | case 2: return newSViv ( start [0] * 10 + start [1] - '0' * 11); |
944 | case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111); |
1086 | case 3: return newSViv ( start [0] * 100 + start [1] * 10 + start [2] - '0' * 111); |
945 | case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111); |
1087 | case 4: return newSViv ( start [0] * 1000 + start [1] * 100 + start [2] * 10 + start [3] - '0' * 1111); |
|
|
1088 | case 5: return newSViv ( start [0] * 10000 + start [1] * 1000 + start [2] * 100 + start [3] * 10 + start [4] - '0' * 11111); |
946 | } |
1089 | } |
947 | |
1090 | |
948 | { |
1091 | { |
949 | UV uv; |
1092 | UV uv; |
950 | int numtype = grok_number (start, dec->cur - start, &uv); |
1093 | int numtype = grok_number (start, len, &uv); |
951 | if (numtype & IS_NUMBER_IN_UV) |
1094 | if (numtype & IS_NUMBER_IN_UV) |
952 | if (numtype & IS_NUMBER_NEG) |
1095 | if (numtype & IS_NUMBER_NEG) |
953 | { |
1096 | { |
954 | if (uv < (UV)IV_MIN) |
1097 | if (uv < (UV)IV_MIN) |
955 | return newSViv (-(IV)uv); |
1098 | return newSViv (-(IV)uv); |
956 | } |
1099 | } |
957 | else |
1100 | else |
958 | return newSVuv (uv); |
1101 | return newSVuv (uv); |
959 | |
|
|
960 | // here would likely be the place for bigint support |
|
|
961 | } |
1102 | } |
962 | } |
|
|
963 | |
1103 | |
964 | // if we ever support bigint or bigfloat, this is the place for bigfloat |
1104 | len -= *start == '-' ? 1 : 0; |
|
|
1105 | |
|
|
1106 | // does not fit into IV or UV, try NV |
|
|
1107 | if ((sizeof (NV) == sizeof (double) && DBL_DIG >= len) |
|
|
1108 | #if defined (LDBL_DIG) |
|
|
1109 | || (sizeof (NV) == sizeof (long double) && LDBL_DIG >= len) |
|
|
1110 | #endif |
|
|
1111 | ) |
|
|
1112 | // fits into NV without loss of precision |
|
|
1113 | return newSVnv (Atof (start)); |
|
|
1114 | |
|
|
1115 | // everything else fails, convert it to a string |
|
|
1116 | return newSVpvn (start, dec->cur - start); |
|
|
1117 | } |
|
|
1118 | |
|
|
1119 | // loss of precision here |
965 | return newSVnv (Atof (start)); |
1120 | return newSVnv (Atof (start)); |
966 | |
1121 | |
967 | fail: |
1122 | fail: |
968 | return 0; |
1123 | return 0; |
969 | } |
1124 | } |
… | |
… | |
999 | |
1154 | |
1000 | if (*dec->cur != ',') |
1155 | if (*dec->cur != ',') |
1001 | ERR (", or ] expected while parsing array"); |
1156 | ERR (", or ] expected while parsing array"); |
1002 | |
1157 | |
1003 | ++dec->cur; |
1158 | ++dec->cur; |
|
|
1159 | |
|
|
1160 | decode_ws (dec); |
|
|
1161 | |
|
|
1162 | if (*dec->cur == ']' && dec->json.flags & F_RELAXED) |
|
|
1163 | { |
|
|
1164 | ++dec->cur; |
|
|
1165 | break; |
|
|
1166 | } |
1004 | } |
1167 | } |
1005 | |
1168 | |
1006 | DEC_DEC_DEPTH; |
1169 | DEC_DEC_DEPTH; |
1007 | return newRV_noinc ((SV *)av); |
1170 | return newRV_noinc ((SV *)av); |
1008 | |
1171 | |
… | |
… | |
1013 | } |
1176 | } |
1014 | |
1177 | |
1015 | static SV * |
1178 | static SV * |
1016 | decode_hv (dec_t *dec) |
1179 | decode_hv (dec_t *dec) |
1017 | { |
1180 | { |
|
|
1181 | SV *sv; |
1018 | HV *hv = newHV (); |
1182 | HV *hv = newHV (); |
1019 | |
1183 | |
1020 | DEC_INC_DEPTH; |
1184 | DEC_INC_DEPTH; |
1021 | decode_ws (dec); |
1185 | decode_ws (dec); |
1022 | |
1186 | |
1023 | if (*dec->cur == '}') |
1187 | if (*dec->cur == '}') |
1024 | ++dec->cur; |
1188 | ++dec->cur; |
1025 | else |
1189 | else |
1026 | for (;;) |
1190 | for (;;) |
1027 | { |
1191 | { |
|
|
1192 | EXPECT_CH ('"'); |
|
|
1193 | |
|
|
1194 | // heuristic: assume that |
|
|
1195 | // a) decode_str + hv_store_ent are abysmally slow. |
|
|
1196 | // b) most hash keys are short, simple ascii text. |
|
|
1197 | // => try to "fast-match" such strings to avoid |
|
|
1198 | // the overhead of decode_str + hv_store_ent. |
|
|
1199 | { |
1028 | SV *key, *value; |
1200 | SV *value; |
|
|
1201 | char *p = dec->cur; |
|
|
1202 | char *e = p + 24; // only try up to 24 bytes |
1029 | |
1203 | |
1030 | decode_ws (dec); EXPECT_CH ('"'); |
1204 | for (;;) |
1031 | |
|
|
1032 | key = decode_str (dec); |
|
|
1033 | if (!key) |
|
|
1034 | goto fail; |
|
|
1035 | |
|
|
1036 | decode_ws (dec); EXPECT_CH (':'); |
|
|
1037 | |
|
|
1038 | value = decode_sv (dec); |
|
|
1039 | if (!value) |
|
|
1040 | { |
1205 | { |
|
|
1206 | // the >= 0x80 is false on most architectures |
|
|
1207 | if (p == e || *p < 0x20 || *p >= 0x80 || *p == '\\') |
|
|
1208 | { |
|
|
1209 | // slow path, back up and use decode_str |
|
|
1210 | SV *key = decode_str (dec); |
|
|
1211 | if (!key) |
|
|
1212 | goto fail; |
|
|
1213 | |
|
|
1214 | decode_ws (dec); EXPECT_CH (':'); |
|
|
1215 | |
|
|
1216 | decode_ws (dec); |
|
|
1217 | value = decode_sv (dec); |
|
|
1218 | if (!value) |
|
|
1219 | { |
|
|
1220 | SvREFCNT_dec (key); |
|
|
1221 | goto fail; |
|
|
1222 | } |
|
|
1223 | |
|
|
1224 | hv_store_ent (hv, key, value, 0); |
1041 | SvREFCNT_dec (key); |
1225 | SvREFCNT_dec (key); |
|
|
1226 | |
|
|
1227 | break; |
|
|
1228 | } |
|
|
1229 | else if (*p == '"') |
|
|
1230 | { |
|
|
1231 | // fast path, got a simple key |
|
|
1232 | char *key = dec->cur; |
|
|
1233 | int len = p - key; |
|
|
1234 | dec->cur = p + 1; |
|
|
1235 | |
|
|
1236 | decode_ws (dec); EXPECT_CH (':'); |
|
|
1237 | |
|
|
1238 | decode_ws (dec); |
|
|
1239 | value = decode_sv (dec); |
|
|
1240 | if (!value) |
1042 | goto fail; |
1241 | goto fail; |
|
|
1242 | |
|
|
1243 | hv_store (hv, key, len, value, 0); |
|
|
1244 | |
|
|
1245 | break; |
|
|
1246 | } |
|
|
1247 | |
|
|
1248 | ++p; |
1043 | } |
1249 | } |
1044 | |
1250 | } |
1045 | hv_store_ent (hv, key, value, 0); |
|
|
1046 | SvREFCNT_dec (key); |
|
|
1047 | |
1251 | |
1048 | decode_ws (dec); |
1252 | decode_ws (dec); |
1049 | |
1253 | |
1050 | if (*dec->cur == '}') |
1254 | if (*dec->cur == '}') |
1051 | { |
1255 | { |
… | |
… | |
1055 | |
1259 | |
1056 | if (*dec->cur != ',') |
1260 | if (*dec->cur != ',') |
1057 | ERR (", or } expected while parsing object/hash"); |
1261 | ERR (", or } expected while parsing object/hash"); |
1058 | |
1262 | |
1059 | ++dec->cur; |
1263 | ++dec->cur; |
|
|
1264 | |
|
|
1265 | decode_ws (dec); |
|
|
1266 | |
|
|
1267 | if (*dec->cur == '}' && dec->json.flags & F_RELAXED) |
|
|
1268 | { |
|
|
1269 | ++dec->cur; |
|
|
1270 | break; |
|
|
1271 | } |
1060 | } |
1272 | } |
1061 | |
1273 | |
1062 | DEC_DEC_DEPTH; |
1274 | DEC_DEC_DEPTH; |
1063 | return newRV_noinc ((SV *)hv); |
1275 | sv = newRV_noinc ((SV *)hv); |
|
|
1276 | |
|
|
1277 | // check filter callbacks |
|
|
1278 | if (dec->json.flags & F_HOOK) |
|
|
1279 | { |
|
|
1280 | if (dec->json.cb_sk_object && HvKEYS (hv) == 1) |
|
|
1281 | { |
|
|
1282 | HE *cb, *he; |
|
|
1283 | |
|
|
1284 | hv_iterinit (hv); |
|
|
1285 | he = hv_iternext (hv); |
|
|
1286 | hv_iterinit (hv); |
|
|
1287 | |
|
|
1288 | // the next line creates a mortal sv each time its called. |
|
|
1289 | // might want to optimise this for common cases. |
|
|
1290 | cb = hv_fetch_ent (dec->json.cb_sk_object, hv_iterkeysv (he), 0, 0); |
|
|
1291 | |
|
|
1292 | if (cb) |
|
|
1293 | { |
|
|
1294 | dSP; |
|
|
1295 | int count; |
|
|
1296 | |
|
|
1297 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
1298 | XPUSHs (HeVAL (he)); |
|
|
1299 | |
|
|
1300 | PUTBACK; count = call_sv (HeVAL (cb), G_ARRAY); SPAGAIN; |
|
|
1301 | |
|
|
1302 | if (count == 1) |
|
|
1303 | { |
|
|
1304 | sv = newSVsv (POPs); |
|
|
1305 | FREETMPS; LEAVE; |
|
|
1306 | return sv; |
|
|
1307 | } |
|
|
1308 | |
|
|
1309 | FREETMPS; LEAVE; |
|
|
1310 | } |
|
|
1311 | } |
|
|
1312 | |
|
|
1313 | if (dec->json.cb_object) |
|
|
1314 | { |
|
|
1315 | dSP; |
|
|
1316 | int count; |
|
|
1317 | |
|
|
1318 | ENTER; SAVETMPS; PUSHMARK (SP); |
|
|
1319 | XPUSHs (sv_2mortal (sv)); |
|
|
1320 | |
|
|
1321 | PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN; |
|
|
1322 | |
|
|
1323 | if (count == 1) |
|
|
1324 | { |
|
|
1325 | sv = newSVsv (POPs); |
|
|
1326 | FREETMPS; LEAVE; |
|
|
1327 | return sv; |
|
|
1328 | } |
|
|
1329 | |
|
|
1330 | SvREFCNT_inc (sv); |
|
|
1331 | FREETMPS; LEAVE; |
|
|
1332 | } |
|
|
1333 | } |
|
|
1334 | |
|
|
1335 | return sv; |
1064 | |
1336 | |
1065 | fail: |
1337 | fail: |
1066 | SvREFCNT_dec (hv); |
1338 | SvREFCNT_dec (hv); |
1067 | DEC_DEC_DEPTH; |
1339 | DEC_DEC_DEPTH; |
1068 | return 0; |
1340 | return 0; |
1069 | } |
1341 | } |
1070 | |
1342 | |
1071 | static SV * |
1343 | static SV * |
1072 | decode_sv (dec_t *dec) |
1344 | decode_sv (dec_t *dec) |
1073 | { |
1345 | { |
1074 | decode_ws (dec); |
|
|
1075 | |
|
|
1076 | // the beauty of JSON: you need exactly one character lookahead |
1346 | // the beauty of JSON: you need exactly one character lookahead |
1077 | // to parse anything. |
1347 | // to parse everything. |
1078 | switch (*dec->cur) |
1348 | switch (*dec->cur) |
1079 | { |
1349 | { |
1080 | case '"': ++dec->cur; return decode_str (dec); |
1350 | case '"': ++dec->cur; return decode_str (dec); |
1081 | case '[': ++dec->cur; return decode_av (dec); |
1351 | case '[': ++dec->cur; return decode_av (dec); |
1082 | case '{': ++dec->cur; return decode_hv (dec); |
1352 | case '{': ++dec->cur; return decode_hv (dec); |
1083 | |
1353 | |
1084 | case '-': |
1354 | case '-': |
1085 | case '0': case '1': case '2': case '3': case '4': |
1355 | case '0': case '1': case '2': case '3': case '4': |
1086 | case '5': case '6': case '7': case '8': case '9': |
1356 | case '5': case '6': case '7': case '8': case '9': |
1087 | return decode_num (dec); |
1357 | return decode_num (dec); |
1088 | |
1358 | |
1089 | case 't': |
1359 | case 't': |
1090 | if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4)) |
1360 | if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4)) |
1091 | { |
1361 | { |
1092 | dec->cur += 4; |
1362 | dec->cur += 4; |
|
|
1363 | #if JSON_SLOW |
|
|
1364 | json_true = get_bool ("JSON::XS::true"); |
|
|
1365 | #endif |
1093 | return SvREFCNT_inc (json_true); |
1366 | return newSVsv (json_true); |
1094 | } |
1367 | } |
1095 | else |
1368 | else |
1096 | ERR ("'true' expected"); |
1369 | ERR ("'true' expected"); |
1097 | |
1370 | |
1098 | break; |
1371 | break; |
1099 | |
1372 | |
1100 | case 'f': |
1373 | case 'f': |
1101 | if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5)) |
1374 | if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5)) |
1102 | { |
1375 | { |
1103 | dec->cur += 5; |
1376 | dec->cur += 5; |
|
|
1377 | #if JSON_SLOW |
|
|
1378 | json_false = get_bool ("JSON::XS::false"); |
|
|
1379 | #endif |
1104 | return SvREFCNT_inc (json_false); |
1380 | return newSVsv (json_false); |
1105 | } |
1381 | } |
1106 | else |
1382 | else |
1107 | ERR ("'false' expected"); |
1383 | ERR ("'false' expected"); |
1108 | |
1384 | |
1109 | break; |
1385 | break; |
… | |
… | |
1127 | fail: |
1403 | fail: |
1128 | return 0; |
1404 | return 0; |
1129 | } |
1405 | } |
1130 | |
1406 | |
1131 | static SV * |
1407 | static SV * |
1132 | decode_json (SV *string, U32 flags, UV *offset_return) |
1408 | decode_json (SV *string, JSON *json, STRLEN *offset_return) |
1133 | { |
1409 | { |
1134 | dec_t dec; |
1410 | dec_t dec; |
1135 | UV offset; |
1411 | STRLEN offset; |
1136 | SV *sv; |
1412 | SV *sv; |
1137 | |
1413 | |
1138 | SvGETMAGIC (string); |
1414 | SvGETMAGIC (string); |
1139 | SvUPGRADE (string, SVt_PV); |
1415 | SvUPGRADE (string, SVt_PV); |
1140 | |
1416 | |
1141 | if (flags & F_MAXSIZE && SvCUR (string) > DEC_SIZE (flags)) |
1417 | if (json->flags & F_MAXSIZE && SvCUR (string) > DEC_SIZE (json->flags)) |
1142 | croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu", |
1418 | croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu", |
1143 | (unsigned long)SvCUR (string), (unsigned long)DEC_SIZE (flags)); |
1419 | (unsigned long)SvCUR (string), (unsigned long)DEC_SIZE (json->flags)); |
1144 | |
1420 | |
1145 | if (flags & F_UTF8) |
1421 | if (json->flags & F_UTF8) |
1146 | sv_utf8_downgrade (string, 0); |
1422 | sv_utf8_downgrade (string, 0); |
1147 | else |
1423 | else |
1148 | sv_utf8_upgrade (string); |
1424 | sv_utf8_upgrade (string); |
1149 | |
1425 | |
1150 | SvGROW (string, SvCUR (string) + 1); // should basically be a NOP |
1426 | SvGROW (string, SvCUR (string) + 1); // should basically be a NOP |
1151 | |
1427 | |
1152 | dec.flags = flags; |
1428 | dec.json = *json; |
1153 | dec.cur = SvPVX (string); |
1429 | dec.cur = SvPVX (string); |
1154 | dec.end = SvEND (string); |
1430 | dec.end = SvEND (string); |
1155 | dec.err = 0; |
1431 | dec.err = 0; |
1156 | dec.depth = 0; |
1432 | dec.depth = 0; |
1157 | dec.maxdepth = DEC_DEPTH (dec.flags); |
1433 | dec.maxdepth = DEC_DEPTH (dec.json.flags); |
|
|
1434 | |
|
|
1435 | if (dec.json.cb_object || dec.json.cb_sk_object) |
|
|
1436 | dec.json.flags |= F_HOOK; |
1158 | |
1437 | |
1159 | *dec.end = 0; // this should basically be a nop, too, but make sure it's there |
1438 | *dec.end = 0; // this should basically be a nop, too, but make sure it's there |
|
|
1439 | |
|
|
1440 | decode_ws (&dec); |
1160 | sv = decode_sv (&dec); |
1441 | sv = decode_sv (&dec); |
1161 | |
1442 | |
1162 | if (!(offset_return || !sv)) |
1443 | if (!(offset_return || !sv)) |
1163 | { |
1444 | { |
1164 | // check for trailing garbage |
1445 | // check for trailing garbage |
… | |
… | |
1172 | } |
1453 | } |
1173 | } |
1454 | } |
1174 | |
1455 | |
1175 | if (offset_return || !sv) |
1456 | if (offset_return || !sv) |
1176 | { |
1457 | { |
1177 | offset = dec.flags & F_UTF8 |
1458 | offset = dec.json.flags & F_UTF8 |
1178 | ? dec.cur - SvPVX (string) |
1459 | ? dec.cur - SvPVX (string) |
1179 | : utf8_distance (dec.cur, SvPVX (string)); |
1460 | : utf8_distance (dec.cur, SvPVX (string)); |
1180 | |
1461 | |
1181 | if (offset_return) |
1462 | if (offset_return) |
1182 | *offset_return = offset; |
1463 | *offset_return = offset; |
… | |
… | |
1201 | dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)"); |
1482 | dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)"); |
1202 | } |
1483 | } |
1203 | |
1484 | |
1204 | sv = sv_2mortal (sv); |
1485 | sv = sv_2mortal (sv); |
1205 | |
1486 | |
1206 | if (!(dec.flags & F_ALLOW_NONREF) && !SvROK (sv)) |
1487 | if (!(dec.json.flags & F_ALLOW_NONREF) && !SvROK (sv)) |
1207 | croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)"); |
1488 | croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)"); |
1208 | |
1489 | |
1209 | return sv; |
1490 | return sv; |
|
|
1491 | } |
|
|
1492 | |
|
|
1493 | ///////////////////////////////////////////////////////////////////////////// |
|
|
1494 | // incremental parser |
|
|
1495 | |
|
|
1496 | static void |
|
|
1497 | incr_parse (JSON *self) |
|
|
1498 | { |
|
|
1499 | const char *p = SvPVX (self->incr_text) + self->incr_pos; |
|
|
1500 | |
|
|
1501 | for (;;) |
|
|
1502 | { |
|
|
1503 | //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 |
|
|
1504 | switch (self->incr_mode) |
|
|
1505 | { |
|
|
1506 | // only used for intiial whitespace skipping |
|
|
1507 | case INCR_M_WS: |
|
|
1508 | for (;;) |
|
|
1509 | { |
|
|
1510 | if (*p > 0x20) |
|
|
1511 | { |
|
|
1512 | self->incr_mode = INCR_M_JSON; |
|
|
1513 | goto incr_m_json; |
|
|
1514 | } |
|
|
1515 | else if (!*p) |
|
|
1516 | goto interrupt; |
|
|
1517 | |
|
|
1518 | ++p; |
|
|
1519 | } |
|
|
1520 | |
|
|
1521 | // skip a single char inside a string (for \\-processing) |
|
|
1522 | case INCR_M_BS: |
|
|
1523 | if (!*p) |
|
|
1524 | goto interrupt; |
|
|
1525 | |
|
|
1526 | ++p; |
|
|
1527 | self->incr_mode = INCR_M_STR; |
|
|
1528 | goto incr_m_str; |
|
|
1529 | |
|
|
1530 | // inside a string |
|
|
1531 | case INCR_M_STR: |
|
|
1532 | incr_m_str: |
|
|
1533 | for (;;) |
|
|
1534 | { |
|
|
1535 | if (*p == '"') |
|
|
1536 | { |
|
|
1537 | ++p; |
|
|
1538 | self->incr_mode = INCR_M_JSON; |
|
|
1539 | |
|
|
1540 | if (!self->incr_nest) |
|
|
1541 | goto interrupt; |
|
|
1542 | |
|
|
1543 | goto incr_m_json; |
|
|
1544 | } |
|
|
1545 | else if (*p == '\\') |
|
|
1546 | { |
|
|
1547 | ++p; // "virtually" consumes character after \ |
|
|
1548 | |
|
|
1549 | if (!*p) // if at end of string we have to switch modes |
|
|
1550 | { |
|
|
1551 | self->incr_mode = INCR_M_BS; |
|
|
1552 | goto interrupt; |
|
|
1553 | } |
|
|
1554 | } |
|
|
1555 | else if (!*p) |
|
|
1556 | goto interrupt; |
|
|
1557 | |
|
|
1558 | ++p; |
|
|
1559 | } |
|
|
1560 | |
|
|
1561 | // after initial ws, outside string |
|
|
1562 | case INCR_M_JSON: |
|
|
1563 | incr_m_json: |
|
|
1564 | for (;;) |
|
|
1565 | { |
|
|
1566 | switch (*p++) |
|
|
1567 | { |
|
|
1568 | case 0: |
|
|
1569 | --p; |
|
|
1570 | goto interrupt; |
|
|
1571 | |
|
|
1572 | case 0x09: |
|
|
1573 | case 0x0a: |
|
|
1574 | case 0x0d: |
|
|
1575 | case 0x20: |
|
|
1576 | if (!self->incr_nest) |
|
|
1577 | { |
|
|
1578 | --p; // do not eat the whitespace, let the next round do it |
|
|
1579 | goto interrupt; |
|
|
1580 | } |
|
|
1581 | break; |
|
|
1582 | |
|
|
1583 | case '"': |
|
|
1584 | self->incr_mode = INCR_M_STR; |
|
|
1585 | goto incr_m_str; |
|
|
1586 | |
|
|
1587 | case '[': |
|
|
1588 | case '{': |
|
|
1589 | ++self->incr_nest; |
|
|
1590 | break; |
|
|
1591 | |
|
|
1592 | case ']': |
|
|
1593 | case '}': |
|
|
1594 | if (!--self->incr_nest) |
|
|
1595 | goto interrupt; |
|
|
1596 | } |
|
|
1597 | } |
|
|
1598 | } |
|
|
1599 | |
|
|
1600 | modechange: |
|
|
1601 | ; |
|
|
1602 | } |
|
|
1603 | |
|
|
1604 | interrupt: |
|
|
1605 | self->incr_pos = p - SvPVX (self->incr_text); |
|
|
1606 | //printf ("return pos %d mode %d nest %d\n", self->incr_pos, self->incr_mode, self->incr_nest);//D |
1210 | } |
1607 | } |
1211 | |
1608 | |
1212 | ///////////////////////////////////////////////////////////////////////////// |
1609 | ///////////////////////////////////////////////////////////////////////////// |
1213 | // XS interface functions |
1610 | // XS interface functions |
1214 | |
1611 | |
… | |
… | |
1226 | : -1; |
1623 | : -1; |
1227 | |
1624 | |
1228 | json_stash = gv_stashpv ("JSON::XS" , 1); |
1625 | json_stash = gv_stashpv ("JSON::XS" , 1); |
1229 | json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1); |
1626 | json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1); |
1230 | |
1627 | |
1231 | json_true = get_sv ("JSON::XS::true" , 1); SvREADONLY_on (json_true ); |
1628 | json_true = get_bool ("JSON::XS::true"); |
1232 | json_false = get_sv ("JSON::XS::false", 1); SvREADONLY_on (json_false); |
1629 | json_false = get_bool ("JSON::XS::false"); |
1233 | } |
1630 | } |
1234 | |
1631 | |
1235 | PROTOTYPES: DISABLE |
1632 | PROTOTYPES: DISABLE |
1236 | |
1633 | |
1237 | SV *new (char *dummy) |
1634 | void CLONE (...) |
1238 | CODE: |
1635 | CODE: |
1239 | RETVAL = sv_bless (newRV_noinc (newSVuv (F_DEFAULT)), json_stash); |
1636 | json_stash = 0; |
1240 | OUTPUT: |
1637 | json_boolean_stash = 0; |
1241 | RETVAL |
|
|
1242 | |
1638 | |
|
|
1639 | void new (char *klass) |
|
|
1640 | PPCODE: |
|
|
1641 | { |
|
|
1642 | SV *pv = NEWSV (0, sizeof (JSON)); |
|
|
1643 | SvPOK_only (pv); |
|
|
1644 | Zero (SvPVX (pv), 1, JSON); |
|
|
1645 | ((JSON *)SvPVX (pv))->flags = F_DEFAULT; |
|
|
1646 | XPUSHs (sv_2mortal (sv_bless ( |
|
|
1647 | newRV_noinc (pv), |
|
|
1648 | strEQ (klass, "JSON::XS") ? JSON_STASH : gv_stashpv (klass, 1) |
|
|
1649 | ))); |
|
|
1650 | } |
|
|
1651 | |
1243 | SV *ascii (SV *self, int enable = 1) |
1652 | void ascii (JSON *self, int enable = 1) |
1244 | ALIAS: |
1653 | ALIAS: |
1245 | ascii = F_ASCII |
1654 | ascii = F_ASCII |
1246 | latin1 = F_LATIN1 |
1655 | latin1 = F_LATIN1 |
1247 | utf8 = F_UTF8 |
1656 | utf8 = F_UTF8 |
1248 | indent = F_INDENT |
1657 | indent = F_INDENT |
… | |
… | |
1252 | pretty = F_PRETTY |
1661 | pretty = F_PRETTY |
1253 | allow_nonref = F_ALLOW_NONREF |
1662 | allow_nonref = F_ALLOW_NONREF |
1254 | shrink = F_SHRINK |
1663 | shrink = F_SHRINK |
1255 | allow_blessed = F_ALLOW_BLESSED |
1664 | allow_blessed = F_ALLOW_BLESSED |
1256 | convert_blessed = F_CONV_BLESSED |
1665 | convert_blessed = F_CONV_BLESSED |
|
|
1666 | relaxed = F_RELAXED |
|
|
1667 | allow_unknown = F_ALLOW_UNKNOWN |
|
|
1668 | PPCODE: |
|
|
1669 | { |
|
|
1670 | if (enable) |
|
|
1671 | self->flags |= ix; |
|
|
1672 | else |
|
|
1673 | self->flags &= ~ix; |
|
|
1674 | |
|
|
1675 | XPUSHs (ST (0)); |
|
|
1676 | } |
|
|
1677 | |
|
|
1678 | void get_ascii (JSON *self) |
|
|
1679 | ALIAS: |
|
|
1680 | get_ascii = F_ASCII |
|
|
1681 | get_latin1 = F_LATIN1 |
|
|
1682 | get_utf8 = F_UTF8 |
|
|
1683 | get_indent = F_INDENT |
|
|
1684 | get_canonical = F_CANONICAL |
|
|
1685 | get_space_before = F_SPACE_BEFORE |
|
|
1686 | get_space_after = F_SPACE_AFTER |
|
|
1687 | get_allow_nonref = F_ALLOW_NONREF |
|
|
1688 | get_shrink = F_SHRINK |
|
|
1689 | get_allow_blessed = F_ALLOW_BLESSED |
|
|
1690 | get_convert_blessed = F_CONV_BLESSED |
|
|
1691 | get_relaxed = F_RELAXED |
|
|
1692 | get_allow_unknown = F_ALLOW_UNKNOWN |
|
|
1693 | PPCODE: |
|
|
1694 | XPUSHs (boolSV (self->flags & ix)); |
|
|
1695 | |
|
|
1696 | void max_depth (JSON *self, UV max_depth = 0x80000000UL) |
|
|
1697 | PPCODE: |
|
|
1698 | { |
|
|
1699 | UV log2 = 0; |
|
|
1700 | |
|
|
1701 | if (max_depth > 0x80000000UL) max_depth = 0x80000000UL; |
|
|
1702 | |
|
|
1703 | while ((1UL << log2) < max_depth) |
|
|
1704 | ++log2; |
|
|
1705 | |
|
|
1706 | self->flags = self->flags & ~F_MAXDEPTH | (log2 << S_MAXDEPTH); |
|
|
1707 | |
|
|
1708 | XPUSHs (ST (0)); |
|
|
1709 | } |
|
|
1710 | |
|
|
1711 | U32 get_max_depth (JSON *self) |
1257 | CODE: |
1712 | CODE: |
1258 | { |
1713 | RETVAL = DEC_DEPTH (self->flags); |
1259 | UV *uv = SvJSON (self); |
|
|
1260 | if (enable) |
|
|
1261 | *uv |= ix; |
|
|
1262 | else |
|
|
1263 | *uv &= ~ix; |
|
|
1264 | |
|
|
1265 | RETVAL = newSVsv (self); |
|
|
1266 | } |
|
|
1267 | OUTPUT: |
1714 | OUTPUT: |
1268 | RETVAL |
1715 | RETVAL |
1269 | |
1716 | |
1270 | SV *max_depth (SV *self, UV max_depth = 0x80000000UL) |
1717 | void max_size (JSON *self, UV max_size = 0) |
|
|
1718 | PPCODE: |
|
|
1719 | { |
|
|
1720 | UV log2 = 0; |
|
|
1721 | |
|
|
1722 | if (max_size > 0x80000000UL) max_size = 0x80000000UL; |
|
|
1723 | if (max_size == 1) max_size = 2; |
|
|
1724 | |
|
|
1725 | while ((1UL << log2) < max_size) |
|
|
1726 | ++log2; |
|
|
1727 | |
|
|
1728 | self->flags = self->flags & ~F_MAXSIZE | (log2 << S_MAXSIZE); |
|
|
1729 | |
|
|
1730 | XPUSHs (ST (0)); |
|
|
1731 | } |
|
|
1732 | |
|
|
1733 | int get_max_size (JSON *self) |
1271 | CODE: |
1734 | CODE: |
1272 | { |
1735 | RETVAL = DEC_SIZE (self->flags); |
1273 | UV *uv = SvJSON (self); |
|
|
1274 | UV log2 = 0; |
|
|
1275 | |
|
|
1276 | if (max_depth > 0x80000000UL) max_depth = 0x80000000UL; |
|
|
1277 | |
|
|
1278 | while ((1UL << log2) < max_depth) |
|
|
1279 | ++log2; |
|
|
1280 | |
|
|
1281 | *uv = *uv & ~F_MAXDEPTH | (log2 << S_MAXDEPTH); |
|
|
1282 | |
|
|
1283 | RETVAL = newSVsv (self); |
|
|
1284 | } |
|
|
1285 | OUTPUT: |
1736 | OUTPUT: |
1286 | RETVAL |
1737 | RETVAL |
1287 | |
1738 | |
1288 | SV *max_size (SV *self, UV max_size = 0) |
1739 | void filter_json_object (JSON *self, SV *cb = &PL_sv_undef) |
|
|
1740 | PPCODE: |
|
|
1741 | { |
|
|
1742 | SvREFCNT_dec (self->cb_object); |
|
|
1743 | self->cb_object = SvOK (cb) ? newSVsv (cb) : 0; |
|
|
1744 | |
|
|
1745 | XPUSHs (ST (0)); |
|
|
1746 | } |
|
|
1747 | |
|
|
1748 | void filter_json_single_key_object (JSON *self, SV *key, SV *cb = &PL_sv_undef) |
|
|
1749 | PPCODE: |
|
|
1750 | { |
|
|
1751 | if (!self->cb_sk_object) |
|
|
1752 | self->cb_sk_object = newHV (); |
|
|
1753 | |
|
|
1754 | if (SvOK (cb)) |
|
|
1755 | hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0); |
|
|
1756 | else |
|
|
1757 | { |
|
|
1758 | hv_delete_ent (self->cb_sk_object, key, G_DISCARD, 0); |
|
|
1759 | |
|
|
1760 | if (!HvKEYS (self->cb_sk_object)) |
|
|
1761 | { |
|
|
1762 | SvREFCNT_dec (self->cb_sk_object); |
|
|
1763 | self->cb_sk_object = 0; |
|
|
1764 | } |
|
|
1765 | } |
|
|
1766 | |
|
|
1767 | XPUSHs (ST (0)); |
|
|
1768 | } |
|
|
1769 | |
|
|
1770 | void encode (JSON *self, SV *scalar) |
|
|
1771 | PPCODE: |
|
|
1772 | XPUSHs (encode_json (scalar, self)); |
|
|
1773 | |
|
|
1774 | void decode (JSON *self, SV *jsonstr) |
|
|
1775 | PPCODE: |
|
|
1776 | XPUSHs (decode_json (jsonstr, self, 0)); |
|
|
1777 | |
|
|
1778 | void decode_prefix (JSON *self, SV *jsonstr) |
|
|
1779 | PPCODE: |
|
|
1780 | { |
|
|
1781 | STRLEN offset; |
|
|
1782 | EXTEND (SP, 2); |
|
|
1783 | PUSHs (decode_json (jsonstr, self, &offset)); |
|
|
1784 | PUSHs (sv_2mortal (newSVuv (offset))); |
|
|
1785 | } |
|
|
1786 | |
|
|
1787 | void incr_parse (JSON *self, SV *jsonstr = 0) |
|
|
1788 | PPCODE: |
|
|
1789 | { |
|
|
1790 | if (!self->incr_text) |
|
|
1791 | self->incr_text = newSVpvn ("", 0); |
|
|
1792 | |
|
|
1793 | // append data, if any |
|
|
1794 | if (jsonstr) |
|
|
1795 | { |
|
|
1796 | if (SvUTF8 (jsonstr) && !SvUTF8 (self->incr_text)) |
|
|
1797 | { |
|
|
1798 | /* utf-8-ness differs, need to upgrade */ |
|
|
1799 | sv_utf8_upgrade (self->incr_text); |
|
|
1800 | |
|
|
1801 | if (self->incr_pos) |
|
|
1802 | self->incr_pos = utf8_hop ((U8 *)SvPVX (self->incr_text), self->incr_pos) |
|
|
1803 | - (U8 *)SvPVX (self->incr_text); |
|
|
1804 | } |
|
|
1805 | |
|
|
1806 | { |
|
|
1807 | STRLEN len; |
|
|
1808 | const char *str = SvPV (jsonstr, len); |
|
|
1809 | SvGROW (self->incr_text, SvCUR (self->incr_text) + len + 1); |
|
|
1810 | Move (str, SvEND (self->incr_text), len, char); |
|
|
1811 | SvCUR_set (self->incr_text, SvCUR (self->incr_text) + len); |
|
|
1812 | *SvEND (self->incr_text) = 0; // this should basically be a nop, too, but make sure it's there |
|
|
1813 | } |
|
|
1814 | } |
|
|
1815 | |
|
|
1816 | if (GIMME_V != G_VOID) |
|
|
1817 | do |
|
|
1818 | { |
|
|
1819 | STRLEN offset; |
|
|
1820 | |
|
|
1821 | if (!INCR_DONE (self)) |
|
|
1822 | { |
|
|
1823 | incr_parse (self); |
|
|
1824 | if (!INCR_DONE (self)) |
|
|
1825 | break; |
|
|
1826 | } |
|
|
1827 | |
|
|
1828 | XPUSHs (decode_json (self->incr_text, self, &offset)); |
|
|
1829 | |
|
|
1830 | sv_chop (self->incr_text, SvPV_nolen (self->incr_text) + offset); |
|
|
1831 | self->incr_pos -= offset; |
|
|
1832 | self->incr_nest = 0; |
|
|
1833 | self->incr_mode = 0; |
|
|
1834 | } |
|
|
1835 | while (GIMME_V == G_ARRAY); |
|
|
1836 | } |
|
|
1837 | |
|
|
1838 | SV *incr_text (JSON *self) |
|
|
1839 | ATTRS: lvalue |
1289 | CODE: |
1840 | CODE: |
1290 | { |
1841 | { |
1291 | UV *uv = SvJSON (self); |
1842 | if (self->incr_pos) |
1292 | UV log2 = 0; |
1843 | croak ("incr_text can not be called when the incremental parser already started parsing"); |
1293 | |
1844 | |
1294 | if (max_size > 0x80000000UL) max_size = 0x80000000UL; |
1845 | RETVAL = self->incr_text ? SvREFCNT_inc (self->incr_text) : &PL_sv_undef; |
1295 | if (max_size == 1) max_size = 2; |
|
|
1296 | |
|
|
1297 | while ((1UL << log2) < max_size) |
|
|
1298 | ++log2; |
|
|
1299 | |
|
|
1300 | *uv = *uv & ~F_MAXSIZE | (log2 << S_MAXSIZE); |
|
|
1301 | |
|
|
1302 | RETVAL = newSVsv (self); |
|
|
1303 | } |
1846 | } |
1304 | OUTPUT: |
1847 | OUTPUT: |
1305 | RETVAL |
1848 | RETVAL |
1306 | |
1849 | |
|
|
1850 | void incr_skip (JSON *self) |
|
|
1851 | CODE: |
|
|
1852 | { |
|
|
1853 | if (self->incr_pos) |
|
|
1854 | { |
|
|
1855 | sv_chop (self->incr_text, SvPV_nolen (self->incr_text) + self->incr_pos); |
|
|
1856 | self->incr_pos = 0; |
|
|
1857 | self->incr_nest = 0; |
|
|
1858 | self->incr_mode = 0; |
|
|
1859 | } |
|
|
1860 | } |
|
|
1861 | |
|
|
1862 | void DESTROY (JSON *self) |
|
|
1863 | CODE: |
|
|
1864 | SvREFCNT_dec (self->cb_sk_object); |
|
|
1865 | SvREFCNT_dec (self->cb_object); |
|
|
1866 | SvREFCNT_dec (self->incr_text); |
|
|
1867 | |
|
|
1868 | PROTOTYPES: ENABLE |
|
|
1869 | |
1307 | void encode (SV *self, SV *scalar) |
1870 | void encode_json (SV *scalar) |
|
|
1871 | ALIAS: |
|
|
1872 | to_json_ = 0 |
|
|
1873 | encode_json = F_UTF8 |
1308 | PPCODE: |
1874 | PPCODE: |
|
|
1875 | { |
|
|
1876 | JSON json = { F_DEFAULT | ix }; |
1309 | XPUSHs (encode_json (scalar, *SvJSON (self))); |
1877 | XPUSHs (encode_json (scalar, &json)); |
|
|
1878 | } |
1310 | |
1879 | |
1311 | void decode (SV *self, SV *jsonstr) |
1880 | void decode_json (SV *jsonstr) |
|
|
1881 | ALIAS: |
|
|
1882 | from_json_ = 0 |
|
|
1883 | decode_json = F_UTF8 |
1312 | PPCODE: |
1884 | PPCODE: |
|
|
1885 | { |
|
|
1886 | JSON json = { F_DEFAULT | ix }; |
1313 | XPUSHs (decode_json (jsonstr, *SvJSON (self), 0)); |
1887 | XPUSHs (decode_json (jsonstr, &json, 0)); |
1314 | |
|
|
1315 | void decode_prefix (SV *self, SV *jsonstr) |
|
|
1316 | PPCODE: |
|
|
1317 | { |
|
|
1318 | UV offset; |
|
|
1319 | EXTEND (SP, 2); |
|
|
1320 | PUSHs (decode_json (jsonstr, *SvJSON (self), &offset)); |
|
|
1321 | PUSHs (sv_2mortal (newSVuv (offset))); |
|
|
1322 | } |
1888 | } |
1323 | |
1889 | |
1324 | PROTOTYPES: ENABLE |
|
|
1325 | |
1890 | |
1326 | void to_json (SV *scalar) |
|
|
1327 | ALIAS: |
|
|
1328 | objToJson = 0 |
|
|
1329 | PPCODE: |
|
|
1330 | XPUSHs (encode_json (scalar, F_DEFAULT | F_UTF8)); |
|
|
1331 | |
|
|
1332 | void from_json (SV *jsonstr) |
|
|
1333 | ALIAS: |
|
|
1334 | jsonToObj = 0 |
|
|
1335 | PPCODE: |
|
|
1336 | XPUSHs (decode_json (jsonstr, F_DEFAULT | F_UTF8, 0)); |
|
|
1337 | |
|
|