1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
|
#include "jv.h"
#include <stdio.h>
#include <float.h>
#include <string.h>
#include <assert.h>
#include "jv_dtoa.h"
#include "jv_unicode.h"
#define ESC "\033"
#define COL(c) (ESC "[" c "m")
#define COLRESET (ESC "[0m")
// Colour table. See http://en.wikipedia.org/wiki/ANSI_escape_code#Colors
// for how to choose these.
static const jv_kind colour_kinds[] =
{JV_KIND_NULL, JV_KIND_FALSE, JV_KIND_TRUE, JV_KIND_NUMBER,
JV_KIND_STRING, JV_KIND_ARRAY, JV_KIND_OBJECT};
static const char* const colours[] =
{COL("1;30"), COL("0;39"), COL("0;39"), COL("0;39"),
COL("0;32"), COL("1;39"), COL("1;39")};
#define FIELD_COLOUR COL("34;1")
static void put_buf(const char* s, int len, FILE* fout, jv* strout) {
if (strout) {
*strout = jv_string_append_buf(*strout, s, len);
} else {
fwrite(s, 1, len, fout);
}
}
static void put_char(char c, FILE* fout, jv* strout) {
put_buf(&c, 1, fout, strout);
}
static void put_str(const char* s, FILE* fout, jv* strout) {
put_buf(s, strlen(s), fout, strout);
}
static void put_space(int n, FILE* fout, jv* strout) {
while (n--) {
put_char(' ', fout, strout);
}
}
static void jvp_dump_string(jv str, int ascii_only, FILE* F, jv* S) {
assert(jv_get_kind(str) == JV_KIND_STRING);
const char* i = jv_string_value(str);
const char* end = i + jv_string_length_bytes(jv_copy(str));
const char* cstart;
int c = 0;
char buf[32];
put_char('"', F, S);
while ((i = jvp_utf8_next((cstart = i), end, &c))) {
assert(c != -1);
int unicode_escape = 0;
if (0x20 <= c && c <= 0x7E) {
// printable ASCII
if (c == '"' || c == '\\') {
put_char('\\', F, S);
}
put_char(c, F, S);
} else if (c < 0x20 || c == 0x7F) {
// ASCII control character
switch (c) {
case '\b':
put_char('\\', F, S);
put_char('b', F, S);
break;
case '\t':
put_char('\\', F, S);
put_char('t', F, S);
break;
case '\r':
put_char('\\', F, S);
put_char('r', F, S);
break;
case '\n':
put_char('\\', F, S);
put_char('n', F, S);
break;
case '\f':
put_char('\\', F, S);
put_char('f', F, S);
break;
default:
unicode_escape = 1;
break;
}
} else {
if (ascii_only) {
unicode_escape = 1;
} else {
put_buf(cstart, i - cstart, F, S);
}
}
if (unicode_escape) {
if (c <= 0xffff) {
sprintf(buf, "\\u%04x", c);
} else {
c -= 0x10000;
sprintf(buf, "\\u%04x\\u%04x",
0xD800 | ((c & 0xffc00) >> 10),
0xDC00 | (c & 0x003ff));
}
put_str(buf, F, S);
}
}
assert(c != -1);
put_char('"', F, S);
}
enum { INDENT = 2 };
static void jv_dump_term(struct dtoa_context* C, jv x, int flags, int indent, FILE* F, jv* S) {
char buf[JVP_DTOA_FMT_MAX_LEN];
const char* colour = 0;
if (flags & JV_PRINT_COLOUR) {
for (unsigned i=0; i<sizeof(colour_kinds)/sizeof(colour_kinds[0]); i++) {
if (jv_get_kind(x) == colour_kinds[i]) {
colour = colours[i];
put_str(colour, F, S);
break;
}
}
}
switch (jv_get_kind(x)) {
default:
case JV_KIND_INVALID:
if (flags & JV_PRINT_INVALID) {
jv msg = jv_invalid_get_msg(jv_copy(x));
if (jv_get_kind(msg) == JV_KIND_STRING) {
put_str("<invalid:", F, S);
jvp_dump_string(msg, flags | JV_PRINT_ASCII, F, S);
put_str(">", F, S);
} else {
put_str("<invalid>", F, S);
}
} else {
assert(0 && "Invalid value");
}
break;
case JV_KIND_NULL:
put_str("null", F, S);
break;
case JV_KIND_FALSE:
put_str("false", F, S);
break;
case JV_KIND_TRUE:
put_str("true", F, S);
break;
case JV_KIND_NUMBER: {
double d = jv_number_value(x);
if (d != d) {
// JSON doesn't have NaN, so we'll render it as "null"
put_str("null", F, S);
} else {
// Normalise infinities to something we can print in valid JSON
if (d > DBL_MAX) d = DBL_MAX;
if (d < -DBL_MAX) d = -DBL_MAX;
put_str(jvp_dtoa_fmt(C, buf, d), F, S);
}
break;
}
case JV_KIND_STRING:
jvp_dump_string(x, flags & JV_PRINT_ASCII, F, S);
break;
case JV_KIND_ARRAY: {
if (jv_array_length(jv_copy(x)) == 0) {
put_str("[]", F, S);
break;
}
put_str("[", F, S);
if (flags & JV_PRINT_PRETTY) {
put_char('\n', F, S);
put_space(indent+INDENT, F, S);
}
jv_array_foreach(x, i, elem) {
if (i!=0) {
if (flags & JV_PRINT_PRETTY) {
put_str(",\n", F, S);
put_space(indent+INDENT, F, S);
} else {
put_str(",", F, S);
}
}
jv_dump_term(C, elem, flags, indent + INDENT, F, S);
if (colour) put_str(colour, F, S);
}
if (flags & JV_PRINT_PRETTY) {
put_char('\n', F, S);
put_space(indent, F, S);
}
if (colour) put_str(colour, F, S);
put_char(']', F, S);
break;
}
case JV_KIND_OBJECT: {
if (jv_object_length(jv_copy(x)) == 0) {
put_str("{}", F, S);
break;
}
put_char('{',
|