1 |
root |
1.1 |
#include "EXTERN.h" |
2 |
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#include "perl.h" |
3 |
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#include "XSUB.h" |
4 |
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5 |
root |
1.56 |
#include <assert.h> |
6 |
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#include <string.h> |
7 |
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#include <stdlib.h> |
8 |
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#include <stdio.h> |
9 |
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#include <float.h> |
10 |
root |
1.26 |
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11 |
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#if defined(__BORLANDC__) || defined(_MSC_VER) |
12 |
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# define snprintf _snprintf // C compilers have this in stdio.h |
13 |
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#endif |
14 |
root |
1.1 |
|
15 |
root |
1.41 |
// some old perls do not have this, try to make it work, no |
16 |
root |
1.42 |
// guarentees, though. if it breaks, you get to keep the pieces. |
17 |
root |
1.41 |
#ifndef UTF8_MAXBYTES |
18 |
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# define UTF8_MAXBYTES 13 |
19 |
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#endif |
20 |
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21 |
root |
1.44 |
#define F_ASCII 0x00000001UL |
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#define F_LATIN1 0x00000002UL |
23 |
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#define F_UTF8 0x00000004UL |
24 |
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#define F_INDENT 0x00000008UL |
25 |
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#define F_CANONICAL 0x00000010UL |
26 |
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#define F_SPACE_BEFORE 0x00000020UL |
27 |
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#define F_SPACE_AFTER 0x00000040UL |
28 |
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#define F_ALLOW_NONREF 0x00000100UL |
29 |
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#define F_SHRINK 0x00000200UL |
30 |
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#define F_ALLOW_BLESSED 0x00000400UL |
31 |
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1.49 |
#define F_CONV_BLESSED 0x00000800UL |
32 |
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1.44 |
#define F_MAXDEPTH 0xf8000000UL |
33 |
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#define S_MAXDEPTH 27 |
34 |
root |
1.45 |
#define F_MAXSIZE 0x01f00000UL |
35 |
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#define S_MAXSIZE 20 |
36 |
root |
1.49 |
#define F_HOOK 0x00080000UL // some hooks exist, so slow-path processing |
37 |
root |
1.18 |
|
38 |
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#define DEC_DEPTH(flags) (1UL << ((flags & F_MAXDEPTH) >> S_MAXDEPTH)) |
39 |
root |
1.45 |
#define DEC_SIZE(flags) (1UL << ((flags & F_MAXSIZE ) >> S_MAXSIZE )) |
40 |
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1.18 |
|
41 |
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1.2 |
#define F_PRETTY F_INDENT | F_SPACE_BEFORE | F_SPACE_AFTER |
42 |
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1.24 |
#define F_DEFAULT (9UL << S_MAXDEPTH) |
43 |
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1.1 |
|
44 |
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#define INIT_SIZE 32 // initial scalar size to be allocated |
45 |
root |
1.12 |
#define INDENT_STEP 3 // spaces per indentation level |
46 |
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47 |
root |
1.38 |
#define SHORT_STRING_LEN 16384 // special-case strings of up to this size |
48 |
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1.1 |
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49 |
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#define SB do { |
50 |
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#define SE } while (0) |
51 |
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52 |
root |
1.35 |
#if __GNUC__ >= 3 |
53 |
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# define expect(expr,value) __builtin_expect ((expr),(value)) |
54 |
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# define inline inline |
55 |
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#else |
56 |
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# define expect(expr,value) (expr) |
57 |
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# define inline static |
58 |
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#endif |
59 |
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60 |
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#define expect_false(expr) expect ((expr) != 0, 0) |
61 |
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#define expect_true(expr) expect ((expr) != 0, 1) |
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63 |
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1.57 |
#ifdef USE_ITHREADS |
64 |
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# define JSON_SLOW 1 |
65 |
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#else |
66 |
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# define JSON_SLOW 1 |
67 |
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#endif |
68 |
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69 |
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1.44 |
static HV *json_stash, *json_boolean_stash; // JSON::XS:: |
70 |
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1.43 |
static SV *json_true, *json_false; |
71 |
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1.1 |
|
72 |
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1.48 |
typedef struct { |
73 |
root |
1.47 |
U32 flags; |
74 |
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1.52 |
SV *cb_object; |
75 |
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HV *cb_sk_object; |
76 |
root |
1.48 |
} JSON; |
77 |
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1.47 |
|
78 |
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1.12 |
///////////////////////////////////////////////////////////////////////////// |
79 |
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// utility functions |
80 |
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1.1 |
|
81 |
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1.48 |
inline void |
82 |
root |
1.7 |
shrink (SV *sv) |
83 |
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{ |
84 |
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sv_utf8_downgrade (sv, 1); |
85 |
root |
1.12 |
if (SvLEN (sv) > SvCUR (sv) + 1) |
86 |
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{ |
87 |
root |
1.7 |
#ifdef SvPV_shrink_to_cur |
88 |
root |
1.12 |
SvPV_shrink_to_cur (sv); |
89 |
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#elif defined (SvPV_renew) |
90 |
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SvPV_renew (sv, SvCUR (sv) + 1); |
91 |
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1.7 |
#endif |
92 |
root |
1.12 |
} |
93 |
root |
1.7 |
} |
94 |
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95 |
root |
1.13 |
// decode an utf-8 character and return it, or (UV)-1 in |
96 |
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// case of an error. |
97 |
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// we special-case "safe" characters from U+80 .. U+7FF, |
98 |
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// but use the very good perl function to parse anything else. |
99 |
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// note that we never call this function for a ascii codepoints |
100 |
root |
1.35 |
inline UV |
101 |
root |
1.13 |
decode_utf8 (unsigned char *s, STRLEN len, STRLEN *clen) |
102 |
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{ |
103 |
root |
1.35 |
if (expect_false (s[0] > 0xdf || s[0] < 0xc2)) |
104 |
root |
1.13 |
return utf8n_to_uvuni (s, len, clen, UTF8_CHECK_ONLY); |
105 |
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else if (len > 1 && s[1] >= 0x80 && s[1] <= 0xbf) |
106 |
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{ |
107 |
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*clen = 2; |
108 |
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return ((s[0] & 0x1f) << 6) | (s[1] & 0x3f); |
109 |
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} |
110 |
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else |
111 |
root |
1.23 |
{ |
112 |
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*clen = (STRLEN)-1; |
113 |
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return (UV)-1; |
114 |
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} |
115 |
root |
1.13 |
} |
116 |
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117 |
root |
1.1 |
///////////////////////////////////////////////////////////////////////////// |
118 |
root |
1.12 |
// encoder |
119 |
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120 |
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// structure used for encoding JSON |
121 |
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typedef struct |
122 |
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{ |
123 |
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char *cur; // SvPVX (sv) + current output position |
124 |
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char *end; // SvEND (sv) |
125 |
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SV *sv; // result scalar |
126 |
root |
1.48 |
JSON json; |
127 |
root |
1.18 |
U32 indent; // indentation level |
128 |
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U32 maxdepth; // max. indentation/recursion level |
129 |
root |
1.12 |
} enc_t; |
130 |
root |
1.1 |
|
131 |
root |
1.35 |
inline void |
132 |
root |
1.1 |
need (enc_t *enc, STRLEN len) |
133 |
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{ |
134 |
root |
1.35 |
if (expect_false (enc->cur + len >= enc->end)) |
135 |
root |
1.1 |
{ |
136 |
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STRLEN cur = enc->cur - SvPVX (enc->sv); |
137 |
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SvGROW (enc->sv, cur + len + 1); |
138 |
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enc->cur = SvPVX (enc->sv) + cur; |
139 |
root |
1.27 |
enc->end = SvPVX (enc->sv) + SvLEN (enc->sv) - 1; |
140 |
root |
1.1 |
} |
141 |
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} |
142 |
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143 |
root |
1.35 |
inline void |
144 |
root |
1.1 |
encode_ch (enc_t *enc, char ch) |
145 |
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{ |
146 |
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need (enc, 1); |
147 |
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*enc->cur++ = ch; |
148 |
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} |
149 |
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150 |
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static void |
151 |
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encode_str (enc_t *enc, char *str, STRLEN len, int is_utf8) |
152 |
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{ |
153 |
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char *end = str + len; |
154 |
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155 |
root |
1.4 |
need (enc, len); |
156 |
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157 |
root |
1.1 |
while (str < end) |
158 |
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{ |
159 |
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unsigned char ch = *(unsigned char *)str; |
160 |
root |
1.4 |
|
161 |
root |
1.35 |
if (expect_true (ch >= 0x20 && ch < 0x80)) // most common case |
162 |
root |
1.4 |
{ |
163 |
root |
1.35 |
if (expect_false (ch == '"')) // but with slow exceptions |
164 |
root |
1.6 |
{ |
165 |
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need (enc, len += 1); |
166 |
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*enc->cur++ = '\\'; |
167 |
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*enc->cur++ = '"'; |
168 |
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} |
169 |
root |
1.35 |
else if (expect_false (ch == '\\')) |
170 |
root |
1.6 |
{ |
171 |
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need (enc, len += 1); |
172 |
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*enc->cur++ = '\\'; |
173 |
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*enc->cur++ = '\\'; |
174 |
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} |
175 |
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else |
176 |
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*enc->cur++ = ch; |
177 |
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178 |
root |
1.4 |
++str; |
179 |
root |
1.1 |
} |
180 |
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else |
181 |
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{ |
182 |
root |
1.6 |
switch (ch) |
183 |
root |
1.1 |
{ |
184 |
root |
1.6 |
case '\010': need (enc, len += 1); *enc->cur++ = '\\'; *enc->cur++ = 'b'; ++str; break; |
185 |
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case '\011': need (enc, len += 1); *enc->cur++ = '\\'; *enc->cur++ = 't'; ++str; break; |
186 |
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case '\012': need (enc, len += 1); *enc->cur++ = '\\'; *enc->cur++ = 'n'; ++str; break; |
187 |
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case '\014': need (enc, len += 1); *enc->cur++ = '\\'; *enc->cur++ = 'f'; ++str; break; |
188 |
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case '\015': need (enc, len += 1); *enc->cur++ = '\\'; *enc->cur++ = 'r'; ++str; break; |
189 |
root |
1.1 |
|
190 |
root |
1.6 |
default: |
191 |
root |
1.1 |
{ |
192 |
root |
1.6 |
STRLEN clen; |
193 |
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UV uch; |
194 |
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195 |
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if (is_utf8) |
196 |
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{ |
197 |
root |
1.13 |
uch = decode_utf8 (str, end - str, &clen); |
198 |
root |
1.6 |
if (clen == (STRLEN)-1) |
199 |
root |
1.9 |
croak ("malformed or illegal unicode character in string [%.11s], cannot convert to JSON", str); |
200 |
root |
1.6 |
} |
201 |
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else |
202 |
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{ |
203 |
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uch = ch; |
204 |
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clen = 1; |
205 |
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} |
206 |
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|
207 |
root |
1.9 |
if (uch > 0x10FFFFUL) |
208 |
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croak ("out of range codepoint (0x%lx) encountered, unrepresentable in JSON", (unsigned long)uch); |
209 |
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|
210 |
root |
1.47 |
if (uch < 0x80 || enc->json.flags & F_ASCII || (enc->json.flags & F_LATIN1 && uch > 0xFF)) |
211 |
root |
1.6 |
{ |
212 |
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if (uch > 0xFFFFUL) |
213 |
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{ |
214 |
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need (enc, len += 11); |
215 |
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sprintf (enc->cur, "\\u%04x\\u%04x", |
216 |
root |
1.10 |
(int)((uch - 0x10000) / 0x400 + 0xD800), |
217 |
|
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(int)((uch - 0x10000) % 0x400 + 0xDC00)); |
218 |
root |
1.6 |
enc->cur += 12; |
219 |
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} |
220 |
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else |
221 |
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{ |
222 |
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static char hexdigit [16] = "0123456789abcdef"; |
223 |
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need (enc, len += 5); |
224 |
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*enc->cur++ = '\\'; |
225 |
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*enc->cur++ = 'u'; |
226 |
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*enc->cur++ = hexdigit [ uch >> 12 ]; |
227 |
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*enc->cur++ = hexdigit [(uch >> 8) & 15]; |
228 |
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*enc->cur++ = hexdigit [(uch >> 4) & 15]; |
229 |
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*enc->cur++ = hexdigit [(uch >> 0) & 15]; |
230 |
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} |
231 |
root |
1.4 |
|
232 |
root |
1.6 |
str += clen; |
233 |
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} |
234 |
root |
1.47 |
else if (enc->json.flags & F_LATIN1) |
235 |
root |
1.30 |
{ |
236 |
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*enc->cur++ = uch; |
237 |
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str += clen; |
238 |
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} |
239 |
root |
1.6 |
else if (is_utf8) |
240 |
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{ |
241 |
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need (enc, len += clen); |
242 |
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do |
243 |
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{ |
244 |
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*enc->cur++ = *str++; |
245 |
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} |
246 |
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while (--clen); |
247 |
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} |
248 |
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else |
249 |
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{ |
250 |
root |
1.28 |
need (enc, len += UTF8_MAXBYTES - 1); // never more than 11 bytes needed |
251 |
root |
1.6 |
enc->cur = uvuni_to_utf8_flags (enc->cur, uch, 0); |
252 |
|
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++str; |
253 |
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} |
254 |
root |
1.5 |
} |
255 |
root |
1.4 |
} |
256 |
root |
1.1 |
} |
257 |
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258 |
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--len; |
259 |
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} |
260 |
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} |
261 |
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|
262 |
root |
1.35 |
inline void |
263 |
root |
1.12 |
encode_indent (enc_t *enc) |
264 |
|
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{ |
265 |
root |
1.47 |
if (enc->json.flags & F_INDENT) |
266 |
root |
1.12 |
{ |
267 |
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int spaces = enc->indent * INDENT_STEP; |
268 |
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|
269 |
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need (enc, spaces); |
270 |
|
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memset (enc->cur, ' ', spaces); |
271 |
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enc->cur += spaces; |
272 |
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} |
273 |
|
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} |
274 |
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|
275 |
root |
1.35 |
inline void |
276 |
root |
1.12 |
encode_space (enc_t *enc) |
277 |
|
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{ |
278 |
|
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need (enc, 1); |
279 |
|
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encode_ch (enc, ' '); |
280 |
|
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} |
281 |
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|
282 |
root |
1.35 |
inline void |
283 |
root |
1.12 |
encode_nl (enc_t *enc) |
284 |
|
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{ |
285 |
root |
1.47 |
if (enc->json.flags & F_INDENT) |
286 |
root |
1.12 |
{ |
287 |
|
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need (enc, 1); |
288 |
|
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encode_ch (enc, '\n'); |
289 |
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} |
290 |
|
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} |
291 |
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|
292 |
root |
1.35 |
inline void |
293 |
root |
1.12 |
encode_comma (enc_t *enc) |
294 |
|
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{ |
295 |
|
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encode_ch (enc, ','); |
296 |
root |
1.1 |
|
297 |
root |
1.47 |
if (enc->json.flags & F_INDENT) |
298 |
root |
1.12 |
encode_nl (enc); |
299 |
root |
1.47 |
else if (enc->json.flags & F_SPACE_AFTER) |
300 |
root |
1.12 |
encode_space (enc); |
301 |
|
|
} |
302 |
root |
1.1 |
|
303 |
|
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static void encode_sv (enc_t *enc, SV *sv); |
304 |
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|
305 |
|
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static void |
306 |
|
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encode_av (enc_t *enc, AV *av) |
307 |
|
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{ |
308 |
|
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int i, len = av_len (av); |
309 |
|
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|
310 |
root |
1.21 |
if (enc->indent >= enc->maxdepth) |
311 |
|
|
croak ("data structure too deep (hit recursion limit)"); |
312 |
|
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|
313 |
root |
1.12 |
encode_ch (enc, '['); encode_nl (enc); |
314 |
root |
1.1 |
++enc->indent; |
315 |
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|
316 |
|
|
for (i = 0; i <= len; ++i) |
317 |
|
|
{ |
318 |
root |
1.55 |
SV **svp = av_fetch (av, i, 0); |
319 |
|
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|
320 |
root |
1.12 |
encode_indent (enc); |
321 |
root |
1.55 |
|
322 |
|
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if (svp) |
323 |
|
|
encode_sv (enc, *svp); |
324 |
|
|
else |
325 |
|
|
encode_str (enc, "null", 4, 0); |
326 |
root |
1.1 |
|
327 |
|
|
if (i < len) |
328 |
root |
1.12 |
encode_comma (enc); |
329 |
root |
1.1 |
} |
330 |
|
|
|
331 |
root |
1.12 |
encode_nl (enc); |
332 |
root |
1.1 |
|
333 |
|
|
--enc->indent; |
334 |
root |
1.12 |
encode_indent (enc); encode_ch (enc, ']'); |
335 |
root |
1.1 |
} |
336 |
|
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|
337 |
|
|
static void |
338 |
|
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encode_he (enc_t *enc, HE *he) |
339 |
|
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{ |
340 |
|
|
encode_ch (enc, '"'); |
341 |
|
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|
342 |
|
|
if (HeKLEN (he) == HEf_SVKEY) |
343 |
|
|
{ |
344 |
|
|
SV *sv = HeSVKEY (he); |
345 |
|
|
STRLEN len; |
346 |
root |
1.4 |
char *str; |
347 |
|
|
|
348 |
|
|
SvGETMAGIC (sv); |
349 |
|
|
str = SvPV (sv, len); |
350 |
root |
1.1 |
|
351 |
|
|
encode_str (enc, str, len, SvUTF8 (sv)); |
352 |
|
|
} |
353 |
|
|
else |
354 |
|
|
encode_str (enc, HeKEY (he), HeKLEN (he), HeKUTF8 (he)); |
355 |
|
|
|
356 |
|
|
encode_ch (enc, '"'); |
357 |
|
|
|
358 |
root |
1.47 |
if (enc->json.flags & F_SPACE_BEFORE) encode_space (enc); |
359 |
root |
1.1 |
encode_ch (enc, ':'); |
360 |
root |
1.47 |
if (enc->json.flags & F_SPACE_AFTER ) encode_space (enc); |
361 |
root |
1.1 |
encode_sv (enc, HeVAL (he)); |
362 |
|
|
} |
363 |
|
|
|
364 |
|
|
// compare hash entries, used when all keys are bytestrings |
365 |
|
|
static int |
366 |
|
|
he_cmp_fast (const void *a_, const void *b_) |
367 |
|
|
{ |
368 |
|
|
int cmp; |
369 |
|
|
|
370 |
|
|
HE *a = *(HE **)a_; |
371 |
|
|
HE *b = *(HE **)b_; |
372 |
|
|
|
373 |
|
|
STRLEN la = HeKLEN (a); |
374 |
|
|
STRLEN lb = HeKLEN (b); |
375 |
|
|
|
376 |
root |
1.11 |
if (!(cmp = memcmp (HeKEY (a), HeKEY (b), la < lb ? la : lb))) |
377 |
|
|
cmp = la - lb; |
378 |
root |
1.1 |
|
379 |
|
|
return cmp; |
380 |
|
|
} |
381 |
|
|
|
382 |
|
|
// compare hash entries, used when some keys are sv's or utf-x |
383 |
|
|
static int |
384 |
|
|
he_cmp_slow (const void *a, const void *b) |
385 |
|
|
{ |
386 |
|
|
return sv_cmp (HeSVKEY_force (*(HE **)a), HeSVKEY_force (*(HE **)b)); |
387 |
|
|
} |
388 |
|
|
|
389 |
|
|
static void |
390 |
|
|
encode_hv (enc_t *enc, HV *hv) |
391 |
|
|
{ |
392 |
|
|
int count, i; |
393 |
|
|
|
394 |
root |
1.21 |
if (enc->indent >= enc->maxdepth) |
395 |
|
|
croak ("data structure too deep (hit recursion limit)"); |
396 |
|
|
|
397 |
root |
1.12 |
encode_ch (enc, '{'); encode_nl (enc); ++enc->indent; |
398 |
root |
1.1 |
|
399 |
|
|
if ((count = hv_iterinit (hv))) |
400 |
|
|
{ |
401 |
|
|
// for canonical output we have to sort by keys first |
402 |
|
|
// actually, this is mostly due to the stupid so-called |
403 |
|
|
// security workaround added somewhere in 5.8.x. |
404 |
|
|
// that randomises hash orderings |
405 |
root |
1.47 |
if (enc->json.flags & F_CANONICAL) |
406 |
root |
1.1 |
{ |
407 |
|
|
int fast = 1; |
408 |
root |
1.33 |
HE *he; |
409 |
root |
1.34 |
#if defined(__BORLANDC__) || defined(_MSC_VER) |
410 |
root |
1.33 |
HE **hes = _alloca (count * sizeof (HE)); |
411 |
|
|
#else |
412 |
|
|
HE *hes [count]; // if your compiler dies here, you need to enable C99 mode |
413 |
|
|
#endif |
414 |
root |
1.1 |
|
415 |
|
|
i = 0; |
416 |
|
|
while ((he = hv_iternext (hv))) |
417 |
|
|
{ |
418 |
|
|
hes [i++] = he; |
419 |
|
|
if (HeKLEN (he) < 0 || HeKUTF8 (he)) |
420 |
|
|
fast = 0; |
421 |
|
|
} |
422 |
|
|
|
423 |
|
|
assert (i == count); |
424 |
|
|
|
425 |
|
|
if (fast) |
426 |
|
|
qsort (hes, count, sizeof (HE *), he_cmp_fast); |
427 |
|
|
else |
428 |
|
|
{ |
429 |
root |
1.8 |
// hack to forcefully disable "use bytes" |
430 |
|
|
COP cop = *PL_curcop; |
431 |
root |
1.1 |
cop.op_private = 0; |
432 |
root |
1.8 |
|
433 |
|
|
ENTER; |
434 |
|
|
SAVETMPS; |
435 |
|
|
|
436 |
|
|
SAVEVPTR (PL_curcop); |
437 |
root |
1.1 |
PL_curcop = &cop; |
438 |
|
|
|
439 |
|
|
qsort (hes, count, sizeof (HE *), he_cmp_slow); |
440 |
root |
1.8 |
|
441 |
root |
1.1 |
FREETMPS; |
442 |
root |
1.8 |
LEAVE; |
443 |
root |
1.1 |
} |
444 |
|
|
|
445 |
|
|
for (i = 0; i < count; ++i) |
446 |
|
|
{ |
447 |
root |
1.12 |
encode_indent (enc); |
448 |
root |
1.1 |
encode_he (enc, hes [i]); |
449 |
|
|
|
450 |
|
|
if (i < count - 1) |
451 |
root |
1.12 |
encode_comma (enc); |
452 |
root |
1.1 |
} |
453 |
|
|
|
454 |
root |
1.12 |
encode_nl (enc); |
455 |
root |
1.1 |
} |
456 |
|
|
else |
457 |
|
|
{ |
458 |
|
|
HE *he = hv_iternext (hv); |
459 |
|
|
|
460 |
|
|
for (;;) |
461 |
|
|
{ |
462 |
root |
1.12 |
encode_indent (enc); |
463 |
root |
1.1 |
encode_he (enc, he); |
464 |
|
|
|
465 |
|
|
if (!(he = hv_iternext (hv))) |
466 |
|
|
break; |
467 |
|
|
|
468 |
root |
1.12 |
encode_comma (enc); |
469 |
root |
1.1 |
} |
470 |
|
|
|
471 |
root |
1.12 |
encode_nl (enc); |
472 |
root |
1.1 |
} |
473 |
|
|
} |
474 |
|
|
|
475 |
root |
1.12 |
--enc->indent; encode_indent (enc); encode_ch (enc, '}'); |
476 |
root |
1.1 |
} |
477 |
|
|
|
478 |
root |
1.21 |
// encode objects, arrays and special \0=false and \1=true values. |
479 |
|
|
static void |
480 |
|
|
encode_rv (enc_t *enc, SV *sv) |
481 |
|
|
{ |
482 |
root |
1.25 |
svtype svt; |
483 |
|
|
|
484 |
root |
1.21 |
SvGETMAGIC (sv); |
485 |
root |
1.25 |
svt = SvTYPE (sv); |
486 |
root |
1.21 |
|
487 |
root |
1.44 |
if (expect_false (SvOBJECT (sv))) |
488 |
|
|
{ |
489 |
root |
1.57 |
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 |
root |
1.44 |
{ |
495 |
root |
1.51 |
if (SvIV (sv)) |
496 |
|
|
encode_str (enc, "true", 4, 0); |
497 |
|
|
else |
498 |
root |
1.44 |
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 |
root |
1.47 |
if (enc->json.flags & F_CONV_BLESSED) |
509 |
root |
1.44 |
{ |
510 |
|
|
// we re-bless the reference to get overload and other niceties right |
511 |
root |
1.53 |
GV *to_json = gv_fetchmethod_autoload (SvSTASH (sv), "TO_JSON", 0); |
512 |
root |
1.44 |
|
513 |
|
|
if (to_json) |
514 |
|
|
{ |
515 |
root |
1.54 |
int count; |
516 |
root |
1.53 |
dSP; |
517 |
|
|
|
518 |
|
|
ENTER; SAVETMPS; PUSHMARK (SP); |
519 |
root |
1.44 |
XPUSHs (sv_bless (sv_2mortal (newRV_inc (sv)), SvSTASH (sv))); |
520 |
|
|
|
521 |
root |
1.53 |
// calling with G_SCALAR ensures that we always get a 1 return value |
522 |
root |
1.44 |
PUTBACK; |
523 |
root |
1.54 |
call_sv ((SV *)GvCV (to_json), G_SCALAR); |
524 |
root |
1.44 |
SPAGAIN; |
525 |
|
|
|
526 |
root |
1.53 |
// 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 |
root |
1.44 |
|
535 |
root |
1.49 |
FREETMPS; LEAVE; |
536 |
root |
1.44 |
} |
537 |
root |
1.47 |
else if (enc->json.flags & F_ALLOW_BLESSED) |
538 |
root |
1.44 |
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 |
root |
1.47 |
else if (enc->json.flags & F_ALLOW_BLESSED) |
544 |
root |
1.44 |
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 |
root |
1.21 |
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 |
root |
1.50 |
STRLEN len = 0; |
557 |
|
|
char *pv = svt ? SvPV (sv, len) : 0; |
558 |
|
|
|
559 |
root |
1.51 |
if (len == 1 && *pv == '1') |
560 |
|
|
encode_str (enc, "true", 4, 0); |
561 |
|
|
else if (len == 1 && *pv == '0') |
562 |
root |
1.21 |
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)))); |
570 |
|
|
} |
571 |
|
|
|
572 |
root |
1.1 |
static void |
573 |
|
|
encode_sv (enc_t *enc, SV *sv) |
574 |
|
|
{ |
575 |
root |
1.4 |
SvGETMAGIC (sv); |
576 |
|
|
|
577 |
root |
1.1 |
if (SvPOKp (sv)) |
578 |
|
|
{ |
579 |
|
|
STRLEN len; |
580 |
|
|
char *str = SvPV (sv, len); |
581 |
|
|
encode_ch (enc, '"'); |
582 |
|
|
encode_str (enc, str, len, SvUTF8 (sv)); |
583 |
|
|
encode_ch (enc, '"'); |
584 |
|
|
} |
585 |
|
|
else if (SvNOKp (sv)) |
586 |
|
|
{ |
587 |
root |
1.39 |
// trust that perl will do the right thing w.r.t. JSON syntax. |
588 |
root |
1.1 |
need (enc, NV_DIG + 32); |
589 |
|
|
Gconvert (SvNVX (sv), NV_DIG, 0, enc->cur); |
590 |
|
|
enc->cur += strlen (enc->cur); |
591 |
|
|
} |
592 |
|
|
else if (SvIOKp (sv)) |
593 |
|
|
{ |
594 |
root |
1.35 |
// we assume we can always read an IV as a UV |
595 |
|
|
if (SvUV (sv) & ~(UV)0x7fff) |
596 |
|
|
{ |
597 |
root |
1.39 |
// large integer, use the (rather slow) snprintf way. |
598 |
root |
1.37 |
need (enc, sizeof (UV) * 3); |
599 |
root |
1.35 |
enc->cur += |
600 |
|
|
SvIsUV(sv) |
601 |
root |
1.37 |
? snprintf (enc->cur, sizeof (UV) * 3, "%"UVuf, (UV)SvUVX (sv)) |
602 |
|
|
: snprintf (enc->cur, sizeof (UV) * 3, "%"IVdf, (IV)SvIVX (sv)); |
603 |
root |
1.35 |
} |
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 |
root |
1.39 |
char digit, nz = 0; |
611 |
root |
1.35 |
|
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 |
root |
1.39 |
// 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 |
root |
1.37 |
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 |
root |
1.39 |
digit = u >> 24; *enc->cur = digit + '0'; enc->cur += 1; // correctly generate '0' |
630 |
root |
1.35 |
} |
631 |
root |
1.1 |
} |
632 |
|
|
else if (SvROK (sv)) |
633 |
root |
1.21 |
encode_rv (enc, SvRV (sv)); |
634 |
root |
1.1 |
else if (!SvOK (sv)) |
635 |
|
|
encode_str (enc, "null", 4, 0); |
636 |
|
|
else |
637 |
root |
1.9 |
croak ("encountered perl type (%s,0x%x) that JSON cannot handle, you might want to report this", |
638 |
|
|
SvPV_nolen (sv), SvFLAGS (sv)); |
639 |
root |
1.1 |
} |
640 |
|
|
|
641 |
|
|
static SV * |
642 |
root |
1.48 |
encode_json (SV *scalar, JSON *json) |
643 |
root |
1.1 |
{ |
644 |
root |
1.25 |
enc_t enc; |
645 |
|
|
|
646 |
root |
1.47 |
if (!(json->flags & F_ALLOW_NONREF) && !SvROK (scalar)) |
647 |
root |
1.9 |
croak ("hash- or arrayref expected (not a simple scalar, use allow_nonref to allow this)"); |
648 |
root |
1.3 |
|
649 |
root |
1.47 |
enc.json = *json; |
650 |
root |
1.12 |
enc.sv = sv_2mortal (NEWSV (0, INIT_SIZE)); |
651 |
|
|
enc.cur = SvPVX (enc.sv); |
652 |
|
|
enc.end = SvEND (enc.sv); |
653 |
|
|
enc.indent = 0; |
654 |
root |
1.47 |
enc.maxdepth = DEC_DEPTH (enc.json.flags); |
655 |
root |
1.1 |
|
656 |
|
|
SvPOK_only (enc.sv); |
657 |
|
|
encode_sv (&enc, scalar); |
658 |
|
|
|
659 |
|
|
SvCUR_set (enc.sv, enc.cur - SvPVX (enc.sv)); |
660 |
root |
1.27 |
*SvEND (enc.sv) = 0; // many xs functions expect a trailing 0 for text strings |
661 |
root |
1.6 |
|
662 |
root |
1.47 |
if (!(enc.json.flags & (F_ASCII | F_LATIN1 | F_UTF8))) |
663 |
root |
1.30 |
SvUTF8_on (enc.sv); |
664 |
|
|
|
665 |
root |
1.47 |
if (enc.json.flags & F_SHRINK) |
666 |
root |
1.7 |
shrink (enc.sv); |
667 |
|
|
|
668 |
root |
1.1 |
return enc.sv; |
669 |
|
|
} |
670 |
|
|
|
671 |
|
|
///////////////////////////////////////////////////////////////////////////// |
672 |
root |
1.12 |
// decoder |
673 |
root |
1.1 |
|
674 |
root |
1.12 |
// structure used for decoding JSON |
675 |
|
|
typedef struct |
676 |
|
|
{ |
677 |
|
|
char *cur; // current parser pointer |
678 |
|
|
char *end; // end of input string |
679 |
|
|
const char *err; // parse error, if != 0 |
680 |
root |
1.48 |
JSON json; |
681 |
root |
1.18 |
U32 depth; // recursion depth |
682 |
|
|
U32 maxdepth; // recursion depth limit |
683 |
root |
1.12 |
} dec_t; |
684 |
|
|
|
685 |
root |
1.35 |
inline void |
686 |
root |
1.12 |
decode_ws (dec_t *dec) |
687 |
|
|
{ |
688 |
|
|
for (;;) |
689 |
|
|
{ |
690 |
|
|
char ch = *dec->cur; |
691 |
|
|
|
692 |
|
|
if (ch > 0x20 |
693 |
|
|
|| (ch != 0x20 && ch != 0x0a && ch != 0x0d && ch != 0x09)) |
694 |
|
|
break; |
695 |
|
|
|
696 |
|
|
++dec->cur; |
697 |
root |
1.1 |
} |
698 |
root |
1.12 |
} |
699 |
root |
1.1 |
|
700 |
|
|
#define ERR(reason) SB dec->err = reason; goto fail; SE |
701 |
root |
1.18 |
|
702 |
root |
1.1 |
#define EXPECT_CH(ch) SB \ |
703 |
|
|
if (*dec->cur != ch) \ |
704 |
|
|
ERR (# ch " expected"); \ |
705 |
|
|
++dec->cur; \ |
706 |
|
|
SE |
707 |
|
|
|
708 |
root |
1.18 |
#define DEC_INC_DEPTH if (++dec->depth > dec->maxdepth) ERR ("json datastructure exceeds maximum nesting level (set a higher max_depth)") |
709 |
|
|
#define DEC_DEC_DEPTH --dec->depth |
710 |
|
|
|
711 |
root |
1.1 |
static SV *decode_sv (dec_t *dec); |
712 |
|
|
|
713 |
|
|
static signed char decode_hexdigit[256]; |
714 |
|
|
|
715 |
|
|
static UV |
716 |
|
|
decode_4hex (dec_t *dec) |
717 |
|
|
{ |
718 |
|
|
signed char d1, d2, d3, d4; |
719 |
root |
1.12 |
unsigned char *cur = (unsigned char *)dec->cur; |
720 |
root |
1.1 |
|
721 |
root |
1.40 |
d1 = decode_hexdigit [cur [0]]; if (expect_false (d1 < 0)) ERR ("exactly four hexadecimal digits expected"); |
722 |
|
|
d2 = decode_hexdigit [cur [1]]; if (expect_false (d2 < 0)) ERR ("exactly four hexadecimal digits expected"); |
723 |
|
|
d3 = decode_hexdigit [cur [2]]; if (expect_false (d3 < 0)) ERR ("exactly four hexadecimal digits expected"); |
724 |
|
|
d4 = decode_hexdigit [cur [3]]; if (expect_false (d4 < 0)) ERR ("exactly four hexadecimal digits expected"); |
725 |
root |
1.1 |
|
726 |
|
|
dec->cur += 4; |
727 |
|
|
|
728 |
|
|
return ((UV)d1) << 12 |
729 |
|
|
| ((UV)d2) << 8 |
730 |
|
|
| ((UV)d3) << 4 |
731 |
|
|
| ((UV)d4); |
732 |
|
|
|
733 |
|
|
fail: |
734 |
|
|
return (UV)-1; |
735 |
|
|
} |
736 |
|
|
|
737 |
|
|
static SV * |
738 |
|
|
decode_str (dec_t *dec) |
739 |
|
|
{ |
740 |
root |
1.12 |
SV *sv = 0; |
741 |
root |
1.1 |
int utf8 = 0; |
742 |
root |
1.38 |
char *dec_cur = dec->cur; |
743 |
root |
1.1 |
|
744 |
root |
1.12 |
do |
745 |
root |
1.1 |
{ |
746 |
root |
1.28 |
char buf [SHORT_STRING_LEN + UTF8_MAXBYTES]; |
747 |
root |
1.12 |
char *cur = buf; |
748 |
root |
1.1 |
|
749 |
root |
1.12 |
do |
750 |
root |
1.1 |
{ |
751 |
root |
1.38 |
unsigned char ch = *(unsigned char *)dec_cur++; |
752 |
root |
1.12 |
|
753 |
root |
1.35 |
if (expect_false (ch == '"')) |
754 |
root |
1.12 |
{ |
755 |
root |
1.38 |
--dec_cur; |
756 |
root |
1.12 |
break; |
757 |
|
|
} |
758 |
root |
1.35 |
else if (expect_false (ch == '\\')) |
759 |
root |
1.1 |
{ |
760 |
root |
1.38 |
switch (*dec_cur) |
761 |
root |
1.1 |
{ |
762 |
root |
1.12 |
case '\\': |
763 |
|
|
case '/': |
764 |
root |
1.38 |
case '"': *cur++ = *dec_cur++; break; |
765 |
root |
1.12 |
|
766 |
root |
1.38 |
case 'b': ++dec_cur; *cur++ = '\010'; break; |
767 |
|
|
case 't': ++dec_cur; *cur++ = '\011'; break; |
768 |
|
|
case 'n': ++dec_cur; *cur++ = '\012'; break; |
769 |
|
|
case 'f': ++dec_cur; *cur++ = '\014'; break; |
770 |
|
|
case 'r': ++dec_cur; *cur++ = '\015'; break; |
771 |
root |
1.1 |
|
772 |
root |
1.12 |
case 'u': |
773 |
root |
1.1 |
{ |
774 |
root |
1.12 |
UV lo, hi; |
775 |
root |
1.38 |
++dec_cur; |
776 |
root |
1.1 |
|
777 |
root |
1.38 |
dec->cur = dec_cur; |
778 |
root |
1.12 |
hi = decode_4hex (dec); |
779 |
root |
1.38 |
dec_cur = dec->cur; |
780 |
root |
1.12 |
if (hi == (UV)-1) |
781 |
|
|
goto fail; |
782 |
root |
1.1 |
|
783 |
root |
1.12 |
// possibly a surrogate pair |
784 |
|
|
if (hi >= 0xd800) |
785 |
|
|
if (hi < 0xdc00) |
786 |
|
|
{ |
787 |
root |
1.38 |
if (dec_cur [0] != '\\' || dec_cur [1] != 'u') |
788 |
root |
1.12 |
ERR ("missing low surrogate character in surrogate pair"); |
789 |
|
|
|
790 |
root |
1.38 |
dec_cur += 2; |
791 |
root |
1.12 |
|
792 |
root |
1.38 |
dec->cur = dec_cur; |
793 |
root |
1.12 |
lo = decode_4hex (dec); |
794 |
root |
1.38 |
dec_cur = dec->cur; |
795 |
root |
1.12 |
if (lo == (UV)-1) |
796 |
|
|
goto fail; |
797 |
|
|
|
798 |
|
|
if (lo < 0xdc00 || lo >= 0xe000) |
799 |
|
|
ERR ("surrogate pair expected"); |
800 |
|
|
|
801 |
|
|
hi = (hi - 0xD800) * 0x400 + (lo - 0xDC00) + 0x10000; |
802 |
|
|
} |
803 |
|
|
else if (hi < 0xe000) |
804 |
|
|
ERR ("missing high surrogate character in surrogate pair"); |
805 |
root |
1.1 |
|
806 |
root |
1.12 |
if (hi >= 0x80) |
807 |
|
|
{ |
808 |
|
|
utf8 = 1; |
809 |
root |
1.1 |
|
810 |
root |
1.12 |
cur = (char *)uvuni_to_utf8_flags (cur, hi, 0); |
811 |
|
|
} |
812 |
|
|
else |
813 |
|
|
*cur++ = hi; |
814 |
root |
1.1 |
} |
815 |
root |
1.12 |
break; |
816 |
|
|
|
817 |
|
|
default: |
818 |
root |
1.38 |
--dec_cur; |
819 |
root |
1.12 |
ERR ("illegal backslash escape sequence in string"); |
820 |
|
|
} |
821 |
|
|
} |
822 |
root |
1.35 |
else if (expect_true (ch >= 0x20 && ch <= 0x7f)) |
823 |
root |
1.12 |
*cur++ = ch; |
824 |
|
|
else if (ch >= 0x80) |
825 |
|
|
{ |
826 |
root |
1.25 |
STRLEN clen; |
827 |
|
|
UV uch; |
828 |
|
|
|
829 |
root |
1.38 |
--dec_cur; |
830 |
root |
1.1 |
|
831 |
root |
1.38 |
uch = decode_utf8 (dec_cur, dec->end - dec_cur, &clen); |
832 |
root |
1.12 |
if (clen == (STRLEN)-1) |
833 |
|
|
ERR ("malformed UTF-8 character in JSON string"); |
834 |
root |
1.1 |
|
835 |
root |
1.12 |
do |
836 |
root |
1.38 |
*cur++ = *dec_cur++; |
837 |
root |
1.12 |
while (--clen); |
838 |
root |
1.5 |
|
839 |
root |
1.12 |
utf8 = 1; |
840 |
root |
1.1 |
} |
841 |
root |
1.12 |
else |
842 |
root |
1.23 |
{ |
843 |
root |
1.38 |
--dec_cur; |
844 |
root |
1.12 |
|
845 |
root |
1.23 |
if (!ch) |
846 |
root |
1.24 |
ERR ("unexpected end of string while parsing JSON string"); |
847 |
root |
1.23 |
else |
848 |
root |
1.24 |
ERR ("invalid character encountered while parsing JSON string"); |
849 |
root |
1.23 |
} |
850 |
root |
1.1 |
} |
851 |
root |
1.12 |
while (cur < buf + SHORT_STRING_LEN); |
852 |
root |
1.1 |
|
853 |
root |
1.25 |
{ |
854 |
|
|
STRLEN len = cur - buf; |
855 |
root |
1.5 |
|
856 |
root |
1.25 |
if (sv) |
857 |
|
|
{ |
858 |
|
|
SvGROW (sv, SvCUR (sv) + len + 1); |
859 |
|
|
memcpy (SvPVX (sv) + SvCUR (sv), buf, len); |
860 |
|
|
SvCUR_set (sv, SvCUR (sv) + len); |
861 |
|
|
} |
862 |
|
|
else |
863 |
|
|
sv = newSVpvn (buf, len); |
864 |
|
|
} |
865 |
root |
1.1 |
} |
866 |
root |
1.38 |
while (*dec_cur != '"'); |
867 |
root |
1.1 |
|
868 |
root |
1.38 |
++dec_cur; |
869 |
root |
1.1 |
|
870 |
root |
1.12 |
if (sv) |
871 |
|
|
{ |
872 |
|
|
SvPOK_only (sv); |
873 |
|
|
*SvEND (sv) = 0; |
874 |
root |
1.4 |
|
875 |
root |
1.12 |
if (utf8) |
876 |
|
|
SvUTF8_on (sv); |
877 |
|
|
} |
878 |
|
|
else |
879 |
|
|
sv = newSVpvn ("", 0); |
880 |
root |
1.6 |
|
881 |
root |
1.38 |
dec->cur = dec_cur; |
882 |
root |
1.1 |
return sv; |
883 |
|
|
|
884 |
|
|
fail: |
885 |
root |
1.38 |
dec->cur = dec_cur; |
886 |
root |
1.1 |
return 0; |
887 |
|
|
} |
888 |
|
|
|
889 |
|
|
static SV * |
890 |
|
|
decode_num (dec_t *dec) |
891 |
|
|
{ |
892 |
|
|
int is_nv = 0; |
893 |
|
|
char *start = dec->cur; |
894 |
|
|
|
895 |
|
|
// [minus] |
896 |
|
|
if (*dec->cur == '-') |
897 |
|
|
++dec->cur; |
898 |
|
|
|
899 |
|
|
if (*dec->cur == '0') |
900 |
|
|
{ |
901 |
|
|
++dec->cur; |
902 |
|
|
if (*dec->cur >= '0' && *dec->cur <= '9') |
903 |
|
|
ERR ("malformed number (leading zero must not be followed by another digit)"); |
904 |
|
|
} |
905 |
root |
1.5 |
else if (*dec->cur < '0' || *dec->cur > '9') |
906 |
|
|
ERR ("malformed number (no digits after initial minus)"); |
907 |
|
|
else |
908 |
|
|
do |
909 |
|
|
{ |
910 |
|
|
++dec->cur; |
911 |
|
|
} |
912 |
|
|
while (*dec->cur >= '0' && *dec->cur <= '9'); |
913 |
root |
1.1 |
|
914 |
|
|
// [frac] |
915 |
|
|
if (*dec->cur == '.') |
916 |
|
|
{ |
917 |
root |
1.5 |
++dec->cur; |
918 |
|
|
|
919 |
|
|
if (*dec->cur < '0' || *dec->cur > '9') |
920 |
|
|
ERR ("malformed number (no digits after decimal point)"); |
921 |
root |
1.1 |
|
922 |
|
|
do |
923 |
|
|
{ |
924 |
|
|
++dec->cur; |
925 |
|
|
} |
926 |
|
|
while (*dec->cur >= '0' && *dec->cur <= '9'); |
927 |
root |
1.5 |
|
928 |
|
|
is_nv = 1; |
929 |
root |
1.1 |
} |
930 |
|
|
|
931 |
|
|
// [exp] |
932 |
|
|
if (*dec->cur == 'e' || *dec->cur == 'E') |
933 |
|
|
{ |
934 |
root |
1.5 |
++dec->cur; |
935 |
root |
1.1 |
|
936 |
|
|
if (*dec->cur == '-' || *dec->cur == '+') |
937 |
|
|
++dec->cur; |
938 |
|
|
|
939 |
root |
1.5 |
if (*dec->cur < '0' || *dec->cur > '9') |
940 |
|
|
ERR ("malformed number (no digits after exp sign)"); |
941 |
|
|
|
942 |
|
|
do |
943 |
|
|
{ |
944 |
|
|
++dec->cur; |
945 |
|
|
} |
946 |
|
|
while (*dec->cur >= '0' && *dec->cur <= '9'); |
947 |
|
|
|
948 |
|
|
is_nv = 1; |
949 |
root |
1.1 |
} |
950 |
|
|
|
951 |
|
|
if (!is_nv) |
952 |
|
|
{ |
953 |
root |
1.56 |
int len = dec->cur - start; |
954 |
|
|
|
955 |
root |
1.35 |
// special case the rather common 1..4-digit-int case, assumes 32 bit ints or so |
956 |
|
|
if (*start == '-') |
957 |
root |
1.56 |
switch (len) |
958 |
root |
1.1 |
{ |
959 |
root |
1.40 |
case 2: return newSViv (-( start [1] - '0' * 1)); |
960 |
root |
1.35 |
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)); |
963 |
root |
1.1 |
} |
964 |
root |
1.35 |
else |
965 |
root |
1.56 |
switch (len) |
966 |
root |
1.35 |
{ |
967 |
root |
1.40 |
case 1: return newSViv ( start [0] - '0' * 1); |
968 |
root |
1.35 |
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 |
root |
1.56 |
int numtype = grok_number (start, len, &uv); |
976 |
root |
1.35 |
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 |
|
|
} |
982 |
|
|
else |
983 |
|
|
return newSVuv (uv); |
984 |
root |
1.56 |
} |
985 |
|
|
|
986 |
|
|
len -= *start == '-' ? 1 : 0; |
987 |
root |
1.40 |
|
988 |
root |
1.56 |
// 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 |
root |
1.1 |
} |
1000 |
|
|
|
1001 |
root |
1.56 |
// loss of precision here |
1002 |
root |
1.1 |
return newSVnv (Atof (start)); |
1003 |
|
|
|
1004 |
|
|
fail: |
1005 |
|
|
return 0; |
1006 |
|
|
} |
1007 |
|
|
|
1008 |
|
|
static SV * |
1009 |
|
|
decode_av (dec_t *dec) |
1010 |
|
|
{ |
1011 |
|
|
AV *av = newAV (); |
1012 |
|
|
|
1013 |
root |
1.18 |
DEC_INC_DEPTH; |
1014 |
root |
1.12 |
decode_ws (dec); |
1015 |
root |
1.18 |
|
1016 |
root |
1.5 |
if (*dec->cur == ']') |
1017 |
|
|
++dec->cur; |
1018 |
|
|
else |
1019 |
|
|
for (;;) |
1020 |
|
|
{ |
1021 |
|
|
SV *value; |
1022 |
root |
1.1 |
|
1023 |
root |
1.5 |
value = decode_sv (dec); |
1024 |
|
|
if (!value) |
1025 |
|
|
goto fail; |
1026 |
root |
1.1 |
|
1027 |
root |
1.5 |
av_push (av, value); |
1028 |
root |
1.1 |
|
1029 |
root |
1.12 |
decode_ws (dec); |
1030 |
root |
1.1 |
|
1031 |
root |
1.5 |
if (*dec->cur == ']') |
1032 |
|
|
{ |
1033 |
|
|
++dec->cur; |
1034 |
|
|
break; |
1035 |
|
|
} |
1036 |
|
|
|
1037 |
|
|
if (*dec->cur != ',') |
1038 |
|
|
ERR (", or ] expected while parsing array"); |
1039 |
root |
1.1 |
|
1040 |
root |
1.5 |
++dec->cur; |
1041 |
|
|
} |
1042 |
root |
1.1 |
|
1043 |
root |
1.18 |
DEC_DEC_DEPTH; |
1044 |
root |
1.1 |
return newRV_noinc ((SV *)av); |
1045 |
|
|
|
1046 |
|
|
fail: |
1047 |
|
|
SvREFCNT_dec (av); |
1048 |
root |
1.18 |
DEC_DEC_DEPTH; |
1049 |
root |
1.1 |
return 0; |
1050 |
|
|
} |
1051 |
|
|
|
1052 |
|
|
static SV * |
1053 |
|
|
decode_hv (dec_t *dec) |
1054 |
|
|
{ |
1055 |
root |
1.49 |
SV *sv; |
1056 |
root |
1.1 |
HV *hv = newHV (); |
1057 |
|
|
|
1058 |
root |
1.18 |
DEC_INC_DEPTH; |
1059 |
root |
1.12 |
decode_ws (dec); |
1060 |
root |
1.18 |
|
1061 |
root |
1.5 |
if (*dec->cur == '}') |
1062 |
|
|
++dec->cur; |
1063 |
|
|
else |
1064 |
|
|
for (;;) |
1065 |
|
|
{ |
1066 |
root |
1.12 |
decode_ws (dec); EXPECT_CH ('"'); |
1067 |
root |
1.1 |
|
1068 |
root |
1.46 |
// heuristic: assume that |
1069 |
root |
1.47 |
// a) decode_str + hv_store_ent are abysmally slow. |
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 |
root |
1.46 |
{ |
1074 |
|
|
SV *value; |
1075 |
|
|
char *p = dec->cur; |
1076 |
|
|
char *e = p + 24; // only try up to 24 bytes |
1077 |
|
|
|
1078 |
|
|
for (;;) |
1079 |
|
|
{ |
1080 |
root |
1.47 |
// the >= 0x80 is true on most architectures |
1081 |
root |
1.46 |
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); |
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) |
1113 |
|
|
goto fail; |
1114 |
root |
1.1 |
|
1115 |
root |
1.46 |
hv_store (hv, key, len, value, 0); |
1116 |
root |
1.1 |
|
1117 |
root |
1.46 |
break; |
1118 |
|
|
} |
1119 |
root |
1.1 |
|
1120 |
root |
1.46 |
++p; |
1121 |
|
|
} |
1122 |
|
|
} |
1123 |
root |
1.1 |
|
1124 |
root |
1.12 |
decode_ws (dec); |
1125 |
root |
1.1 |
|
1126 |
root |
1.5 |
if (*dec->cur == '}') |
1127 |
|
|
{ |
1128 |
|
|
++dec->cur; |
1129 |
|
|
break; |
1130 |
|
|
} |
1131 |
root |
1.1 |
|
1132 |
root |
1.5 |
if (*dec->cur != ',') |
1133 |
|
|
ERR (", or } expected while parsing object/hash"); |
1134 |
root |
1.1 |
|
1135 |
root |
1.5 |
++dec->cur; |
1136 |
|
|
} |
1137 |
root |
1.1 |
|
1138 |
root |
1.18 |
DEC_DEC_DEPTH; |
1139 |
root |
1.49 |
sv = newRV_noinc ((SV *)hv); |
1140 |
|
|
|
1141 |
|
|
// check filter callbacks |
1142 |
|
|
if (dec->json.flags & F_HOOK) |
1143 |
|
|
{ |
1144 |
root |
1.51 |
if (dec->json.cb_sk_object && HvKEYS (hv) == 1) |
1145 |
root |
1.49 |
{ |
1146 |
root |
1.52 |
HE *cb, *he; |
1147 |
root |
1.49 |
|
1148 |
root |
1.52 |
hv_iterinit (hv); |
1149 |
|
|
he = hv_iternext (hv); |
1150 |
|
|
hv_iterinit (hv); |
1151 |
root |
1.49 |
|
1152 |
root |
1.52 |
// 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 |
root |
1.49 |
|
1156 |
root |
1.52 |
if (cb) |
1157 |
root |
1.51 |
{ |
1158 |
root |
1.53 |
dSP; |
1159 |
root |
1.52 |
int count; |
1160 |
|
|
|
1161 |
root |
1.53 |
ENTER; SAVETMPS; PUSHMARK (SP); |
1162 |
root |
1.52 |
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 |
root |
1.51 |
} |
1175 |
root |
1.49 |
} |
1176 |
|
|
|
1177 |
|
|
if (dec->json.cb_object) |
1178 |
|
|
{ |
1179 |
root |
1.53 |
dSP; |
1180 |
root |
1.49 |
int count; |
1181 |
|
|
|
1182 |
root |
1.53 |
ENTER; SAVETMPS; PUSHMARK (SP); |
1183 |
root |
1.49 |
XPUSHs (sv_2mortal (sv)); |
1184 |
|
|
|
1185 |
|
|
PUTBACK; count = call_sv (dec->json.cb_object, G_ARRAY); SPAGAIN; |
1186 |
|
|
|
1187 |
|
|
if (count == 1) |
1188 |
root |
1.51 |
{ |
1189 |
|
|
sv = newSVsv (POPs); |
1190 |
root |
1.52 |
FREETMPS; LEAVE; |
1191 |
|
|
return sv; |
1192 |
root |
1.51 |
} |
1193 |
|
|
|
1194 |
|
|
SvREFCNT_inc (sv); |
1195 |
root |
1.52 |
FREETMPS; LEAVE; |
1196 |
root |
1.49 |
} |
1197 |
|
|
} |
1198 |
|
|
|
1199 |
root |
1.51 |
return sv; |
1200 |
root |
1.1 |
|
1201 |
|
|
fail: |
1202 |
|
|
SvREFCNT_dec (hv); |
1203 |
root |
1.18 |
DEC_DEC_DEPTH; |
1204 |
root |
1.1 |
return 0; |
1205 |
|
|
} |
1206 |
|
|
|
1207 |
|
|
static SV * |
1208 |
|
|
decode_sv (dec_t *dec) |
1209 |
|
|
{ |
1210 |
root |
1.12 |
decode_ws (dec); |
1211 |
root |
1.40 |
|
1212 |
|
|
// the beauty of JSON: you need exactly one character lookahead |
1213 |
|
|
// to parse anything. |
1214 |
root |
1.1 |
switch (*dec->cur) |
1215 |
|
|
{ |
1216 |
|
|
case '"': ++dec->cur; return decode_str (dec); |
1217 |
|
|
case '[': ++dec->cur; return decode_av (dec); |
1218 |
|
|
case '{': ++dec->cur; return decode_hv (dec); |
1219 |
|
|
|
1220 |
|
|
case '-': |
1221 |
|
|
case '0': case '1': case '2': case '3': case '4': |
1222 |
|
|
case '5': case '6': case '7': case '8': case '9': |
1223 |
|
|
return decode_num (dec); |
1224 |
|
|
|
1225 |
|
|
case 't': |
1226 |
|
|
if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "true", 4)) |
1227 |
|
|
{ |
1228 |
|
|
dec->cur += 4; |
1229 |
root |
1.43 |
return SvREFCNT_inc (json_true); |
1230 |
root |
1.1 |
} |
1231 |
|
|
else |
1232 |
|
|
ERR ("'true' expected"); |
1233 |
|
|
|
1234 |
|
|
break; |
1235 |
|
|
|
1236 |
|
|
case 'f': |
1237 |
|
|
if (dec->end - dec->cur >= 5 && !memcmp (dec->cur, "false", 5)) |
1238 |
|
|
{ |
1239 |
|
|
dec->cur += 5; |
1240 |
root |
1.43 |
return SvREFCNT_inc (json_false); |
1241 |
root |
1.1 |
} |
1242 |
|
|
else |
1243 |
|
|
ERR ("'false' expected"); |
1244 |
|
|
|
1245 |
|
|
break; |
1246 |
|
|
|
1247 |
|
|
case 'n': |
1248 |
|
|
if (dec->end - dec->cur >= 4 && !memcmp (dec->cur, "null", 4)) |
1249 |
|
|
{ |
1250 |
|
|
dec->cur += 4; |
1251 |
root |
1.5 |
return newSVsv (&PL_sv_undef); |
1252 |
root |
1.1 |
} |
1253 |
|
|
else |
1254 |
|
|
ERR ("'null' expected"); |
1255 |
|
|
|
1256 |
|
|
break; |
1257 |
|
|
|
1258 |
|
|
default: |
1259 |
root |
1.24 |
ERR ("malformed JSON string, neither array, object, number, string or atom"); |
1260 |
root |
1.1 |
break; |
1261 |
|
|
} |
1262 |
|
|
|
1263 |
|
|
fail: |
1264 |
|
|
return 0; |
1265 |
|
|
} |
1266 |
|
|
|
1267 |
|
|
static SV * |
1268 |
root |
1.48 |
decode_json (SV *string, JSON *json, UV *offset_return) |
1269 |
root |
1.1 |
{ |
1270 |
root |
1.25 |
dec_t dec; |
1271 |
root |
1.31 |
UV offset; |
1272 |
root |
1.1 |
SV *sv; |
1273 |
|
|
|
1274 |
root |
1.29 |
SvGETMAGIC (string); |
1275 |
root |
1.22 |
SvUPGRADE (string, SVt_PV); |
1276 |
|
|
|
1277 |
root |
1.47 |
if (json->flags & F_MAXSIZE && SvCUR (string) > DEC_SIZE (json->flags)) |
1278 |
root |
1.45 |
croak ("attempted decode of JSON text of %lu bytes size, but max_size is set to %lu", |
1279 |
root |
1.47 |
(unsigned long)SvCUR (string), (unsigned long)DEC_SIZE (json->flags)); |
1280 |
root |
1.45 |
|
1281 |
root |
1.47 |
if (json->flags & F_UTF8) |
1282 |
root |
1.5 |
sv_utf8_downgrade (string, 0); |
1283 |
|
|
else |
1284 |
root |
1.1 |
sv_utf8_upgrade (string); |
1285 |
|
|
|
1286 |
|
|
SvGROW (string, SvCUR (string) + 1); // should basically be a NOP |
1287 |
|
|
|
1288 |
root |
1.47 |
dec.json = *json; |
1289 |
root |
1.18 |
dec.cur = SvPVX (string); |
1290 |
|
|
dec.end = SvEND (string); |
1291 |
|
|
dec.err = 0; |
1292 |
|
|
dec.depth = 0; |
1293 |
root |
1.47 |
dec.maxdepth = DEC_DEPTH (dec.json.flags); |
1294 |
root |
1.1 |
|
1295 |
root |
1.49 |
if (dec.json.cb_object || dec.json.cb_sk_object) |
1296 |
|
|
dec.json.flags |= F_HOOK; |
1297 |
|
|
|
1298 |
root |
1.31 |
*dec.end = 0; // this should basically be a nop, too, but make sure it's there |
1299 |
root |
1.1 |
sv = decode_sv (&dec); |
1300 |
|
|
|
1301 |
root |
1.32 |
if (!(offset_return || !sv)) |
1302 |
root |
1.31 |
{ |
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 |
root |
1.32 |
if (offset_return || !sv) |
1315 |
|
|
{ |
1316 |
root |
1.47 |
offset = dec.json.flags & F_UTF8 |
1317 |
root |
1.32 |
? dec.cur - SvPVX (string) |
1318 |
|
|
: utf8_distance (dec.cur, SvPVX (string)); |
1319 |
|
|
|
1320 |
|
|
if (offset_return) |
1321 |
|
|
*offset_return = offset; |
1322 |
|
|
} |
1323 |
|
|
|
1324 |
root |
1.1 |
if (!sv) |
1325 |
|
|
{ |
1326 |
|
|
SV *uni = sv_newmortal (); |
1327 |
root |
1.8 |
|
1328 |
root |
1.5 |
// horrible hack to silence warning inside pv_uni_display |
1329 |
root |
1.8 |
COP cop = *PL_curcop; |
1330 |
root |
1.5 |
cop.cop_warnings = pWARN_NONE; |
1331 |
root |
1.8 |
ENTER; |
1332 |
root |
1.5 |
SAVEVPTR (PL_curcop); |
1333 |
|
|
PL_curcop = &cop; |
1334 |
root |
1.8 |
pv_uni_display (uni, dec.cur, dec.end - dec.cur, 20, UNI_DISPLAY_QQ); |
1335 |
|
|
LEAVE; |
1336 |
root |
1.1 |
|
1337 |
root |
1.23 |
croak ("%s, at character offset %d [\"%s\"]", |
1338 |
root |
1.1 |
dec.err, |
1339 |
|
|
(int)offset, |
1340 |
|
|
dec.cur != dec.end ? SvPV_nolen (uni) : "(end of string)"); |
1341 |
|
|
} |
1342 |
|
|
|
1343 |
root |
1.3 |
sv = sv_2mortal (sv); |
1344 |
|
|
|
1345 |
root |
1.47 |
if (!(dec.json.flags & F_ALLOW_NONREF) && !SvROK (sv)) |
1346 |
root |
1.9 |
croak ("JSON text must be an object or array (but found number, string, true, false or null, use allow_nonref to allow this)"); |
1347 |
root |
1.3 |
|
1348 |
|
|
return sv; |
1349 |
root |
1.1 |
} |
1350 |
|
|
|
1351 |
root |
1.12 |
///////////////////////////////////////////////////////////////////////////// |
1352 |
|
|
// XS interface functions |
1353 |
|
|
|
1354 |
root |
1.1 |
MODULE = JSON::XS PACKAGE = JSON::XS |
1355 |
|
|
|
1356 |
|
|
BOOT: |
1357 |
|
|
{ |
1358 |
|
|
int i; |
1359 |
|
|
|
1360 |
root |
1.18 |
for (i = 0; i < 256; ++i) |
1361 |
|
|
decode_hexdigit [i] = |
1362 |
|
|
i >= '0' && i <= '9' ? i - '0' |
1363 |
|
|
: i >= 'a' && i <= 'f' ? i - 'a' + 10 |
1364 |
|
|
: i >= 'A' && i <= 'F' ? i - 'A' + 10 |
1365 |
|
|
: -1; |
1366 |
root |
1.1 |
|
1367 |
root |
1.44 |
json_stash = gv_stashpv ("JSON::XS" , 1); |
1368 |
|
|
json_boolean_stash = gv_stashpv ("JSON::XS::Boolean", 1); |
1369 |
root |
1.43 |
|
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); |
1372 |
root |
1.1 |
} |
1373 |
|
|
|
1374 |
root |
1.4 |
PROTOTYPES: DISABLE |
1375 |
|
|
|
1376 |
root |
1.57 |
void CLONE (...) |
1377 |
|
|
CODE: |
1378 |
|
|
json_stash = 0; |
1379 |
|
|
json_boolean_stash = 0; |
1380 |
|
|
|
1381 |
root |
1.48 |
void new (char *klass) |
1382 |
|
|
PPCODE: |
1383 |
|
|
{ |
1384 |
root |
1.57 |
HV *stash = !JSON_SLOW || json_stash |
1385 |
|
|
? json_stash |
1386 |
|
|
: gv_stashpv ("JSON::XS", 1); |
1387 |
root |
1.48 |
SV *pv = NEWSV (0, sizeof (JSON)); |
1388 |
|
|
SvPOK_only (pv); |
1389 |
root |
1.49 |
Zero (SvPVX (pv), 1, JSON); |
1390 |
root |
1.48 |
((JSON *)SvPVX (pv))->flags = F_DEFAULT; |
1391 |
root |
1.57 |
XPUSHs (sv_2mortal (sv_bless (newRV_noinc (pv), stash))); |
1392 |
root |
1.48 |
} |
1393 |
root |
1.1 |
|
1394 |
root |
1.48 |
void ascii (JSON *self, int enable = 1) |
1395 |
root |
1.1 |
ALIAS: |
1396 |
root |
1.44 |
ascii = F_ASCII |
1397 |
|
|
latin1 = F_LATIN1 |
1398 |
|
|
utf8 = F_UTF8 |
1399 |
|
|
indent = F_INDENT |
1400 |
|
|
canonical = F_CANONICAL |
1401 |
|
|
space_before = F_SPACE_BEFORE |
1402 |
|
|
space_after = F_SPACE_AFTER |
1403 |
|
|
pretty = F_PRETTY |
1404 |
|
|
allow_nonref = F_ALLOW_NONREF |
1405 |
|
|
shrink = F_SHRINK |
1406 |
|
|
allow_blessed = F_ALLOW_BLESSED |
1407 |
|
|
convert_blessed = F_CONV_BLESSED |
1408 |
root |
1.48 |
PPCODE: |
1409 |
root |
1.1 |
{ |
1410 |
|
|
if (enable) |
1411 |
root |
1.48 |
self->flags |= ix; |
1412 |
root |
1.1 |
else |
1413 |
root |
1.48 |
self->flags &= ~ix; |
1414 |
root |
1.1 |
|
1415 |
root |
1.48 |
XPUSHs (ST (0)); |
1416 |
root |
1.1 |
} |
1417 |
|
|
|
1418 |
root |
1.48 |
void max_depth (JSON *self, UV max_depth = 0x80000000UL) |
1419 |
|
|
PPCODE: |
1420 |
root |
1.18 |
{ |
1421 |
|
|
UV log2 = 0; |
1422 |
|
|
|
1423 |
|
|
if (max_depth > 0x80000000UL) max_depth = 0x80000000UL; |
1424 |
|
|
|
1425 |
|
|
while ((1UL << log2) < max_depth) |
1426 |
|
|
++log2; |
1427 |
|
|
|
1428 |
root |
1.48 |
self->flags = self->flags & ~F_MAXDEPTH | (log2 << S_MAXDEPTH); |
1429 |
root |
1.18 |
|
1430 |
root |
1.48 |
XPUSHs (ST (0)); |
1431 |
root |
1.18 |
} |
1432 |
|
|
|
1433 |
root |
1.48 |
void max_size (JSON *self, UV max_size = 0) |
1434 |
|
|
PPCODE: |
1435 |
root |
1.45 |
{ |
1436 |
|
|
UV log2 = 0; |
1437 |
|
|
|
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 |
root |
1.48 |
self->flags = self->flags & ~F_MAXSIZE | (log2 << S_MAXSIZE); |
1445 |
root |
1.45 |
|
1446 |
root |
1.48 |
XPUSHs (ST (0)); |
1447 |
root |
1.45 |
} |
1448 |
|
|
|
1449 |
root |
1.51 |
void filter_json_object (JSON *self, SV *cb = &PL_sv_undef) |
1450 |
root |
1.49 |
PPCODE: |
1451 |
|
|
{ |
1452 |
root |
1.52 |
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 |
root |
1.51 |
|
1464 |
root |
1.52 |
if (SvOK (cb)) |
1465 |
|
|
hv_store_ent (self->cb_sk_object, key, newSVsv (cb), 0); |
1466 |
root |
1.51 |
else |
1467 |
root |
1.52 |
{ |
1468 |
|
|
hv_delete_ent (self->cb_sk_object, key, G_DISCARD, 0); |
1469 |
root |
1.49 |
|
1470 |
root |
1.52 |
if (!HvKEYS (self->cb_sk_object)) |
1471 |
|
|
{ |
1472 |
|
|
SvREFCNT_dec (self->cb_sk_object); |
1473 |
|
|
self->cb_sk_object = 0; |
1474 |
|
|
} |
1475 |
root |
1.49 |
} |
1476 |
|
|
|
1477 |
|
|
XPUSHs (ST (0)); |
1478 |
|
|
} |
1479 |
|
|
|
1480 |
root |
1.48 |
void encode (JSON *self, SV *scalar) |
1481 |
root |
1.1 |
PPCODE: |
1482 |
root |
1.48 |
XPUSHs (encode_json (scalar, self)); |
1483 |
root |
1.1 |
|
1484 |
root |
1.48 |
void decode (JSON *self, SV *jsonstr) |
1485 |
root |
1.1 |
PPCODE: |
1486 |
root |
1.48 |
XPUSHs (decode_json (jsonstr, self, 0)); |
1487 |
root |
1.31 |
|
1488 |
root |
1.48 |
void decode_prefix (JSON *self, SV *jsonstr) |
1489 |
root |
1.31 |
PPCODE: |
1490 |
|
|
{ |
1491 |
|
|
UV offset; |
1492 |
|
|
EXTEND (SP, 2); |
1493 |
root |
1.48 |
PUSHs (decode_json (jsonstr, self, &offset)); |
1494 |
root |
1.31 |
PUSHs (sv_2mortal (newSVuv (offset))); |
1495 |
|
|
} |
1496 |
root |
1.2 |
|
1497 |
root |
1.52 |
void DESTROY (JSON *self) |
1498 |
|
|
CODE: |
1499 |
|
|
SvREFCNT_dec (self->cb_sk_object); |
1500 |
|
|
SvREFCNT_dec (self->cb_object); |
1501 |
|
|
|
1502 |
root |
1.4 |
PROTOTYPES: ENABLE |
1503 |
|
|
|
1504 |
root |
1.2 |
void to_json (SV *scalar) |
1505 |
|
|
PPCODE: |
1506 |
root |
1.47 |
{ |
1507 |
root |
1.48 |
JSON json = { F_DEFAULT | F_UTF8 }; |
1508 |
root |
1.47 |
XPUSHs (encode_json (scalar, &json)); |
1509 |
|
|
} |
1510 |
root |
1.2 |
|
1511 |
|
|
void from_json (SV *jsonstr) |
1512 |
|
|
PPCODE: |
1513 |
root |
1.47 |
{ |
1514 |
root |
1.48 |
JSON json = { F_DEFAULT | F_UTF8 }; |
1515 |
root |
1.47 |
XPUSHs (decode_json (jsonstr, &json, 0)); |
1516 |
|
|
} |
1517 |
root |
1.1 |
|