10 typedef int (*dump_func)(const char *buffer, int size, void *data);
19 static int dump_to_strbuffer(const char *buffer, int size, void *data)
21 return strbuffer_append_bytes((strbuffer_t *)data, buffer, size);
24 static int dump_to_file(const char *buffer, int size, void *data)
26 FILE *dest = (FILE *)data;
27 if(fwrite(buffer, size, 1, dest) != 1)
32 static int dump_to_fd(const char *buffer, int size, void *data)
34 int *fd = (int *)data;
35 if(write(*fd, buffer, size) != size)
40 static int dump_indent(uint32_t flags, int depth, dump_func dump, void *data)
42 if(JSON_INDENT(flags) > 0)
45 int ws_count = JSON_INDENT(flags) * depth;
47 if(dump("\n", 1, data))
53 ws_buffer = alloca(ws_count);
54 memset(ws_buffer, ' ', ws_count);
55 return dump(ws_buffer, ws_count, data);
58 return dump(" ", 1, data);
61 static int dump_string(const char *str, dump_func dump, void *data)
65 if(dump("\"", 1, data))
71 while(*end && *end != '\\' && *end != '"')
75 if(dump(str, end - str, data))
80 if(dump("\\\\", 2, data))
86 if(dump("\\\"", 2, data))
93 return dump("\"", 1, data);
96 static int do_dump(const json_t *json, uint32_t flags, int depth,
97 dump_func dump, void *data)
99 switch(json_typeof(json)) {
101 return dump("null", 4, data);
104 return dump("true", 4, data);
107 return dump("false", 5, data);
114 size = asprintf(&buffer, "%d", json_integer_value(json));
118 ret = dump(buffer, size, data);
128 size = asprintf(&buffer, "%.17f", json_real_value(json));
132 ret = dump(buffer, size, data);
138 return dump_string(json_string_value(json), dump, data);
143 int n = json_array_size(json);
145 if(dump("[", 1, data))
149 if(dump_indent(flags, depth + 1, dump, data))
152 for(i = 0; i < n; ++i) {
153 if(do_dump(json_array_get(json, i), flags, depth + 1,
159 if(dump(",", 1, data) ||
160 dump_indent(flags, depth + 1, dump, data))
165 if(dump_indent(flags, depth, dump, data))
169 return dump("]", 1, data);
174 void *iter = json_object_iter((json_t *)json);
176 if(dump("{", 1, data))
179 return dump("}", 1, data);
180 if(dump_indent(flags, depth + 1, dump, data))
185 void *next = json_object_iter_next((json_t *)json, iter);
187 dump_string(json_object_iter_key(iter), dump, data);
188 if(dump(": ", 2, data) ||
189 do_dump(json_object_iter_value(iter), flags, depth + 1,
195 if(dump(",", 1, data) ||
196 dump_indent(flags, depth + 1, dump, data))
201 if(dump_indent(flags, depth, dump, data))
207 return dump("}", 1, data);
217 int json_dump(const json_t *json, const char *path, uint32_t flags)
219 FILE *output = fopen(path, "w");
223 return json_dumpf(json, output, flags);
226 char *json_dumps(const json_t *json, uint32_t flags)
231 if(strbuffer_init(&strbuff))
234 if(do_dump(json, flags, 0, dump_to_strbuffer, (void *)&strbuff))
237 if(dump_to_strbuffer("\n", 1, (void *)&strbuff))
240 result = strdup(strbuffer_value(&strbuff));
241 strbuffer_close(&strbuff);
246 int json_dumpf(const json_t *json, FILE *output, uint32_t flags)
248 if(do_dump(json, flags, 0, dump_to_file, (void *)output))
250 return dump_to_file("\n", 1, (void *)output);
253 int json_dumpfd(const json_t *json, int fd, uint32_t flags)
255 if(do_dump(json, flags, 0, dump_to_fd, (void *)&fd))
257 return dump_to_fd("\n", 1, (void *)&fd);