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, "%.17f", json_number_value(json));
118 ret = dump(buffer, size, data);
124 return dump_string(json_string_value(json), dump, data);
129 int n = json_array_size(json);
131 if(dump("[", 1, data))
135 if(dump_indent(flags, depth + 1, dump, data))
138 for(i = 0; i < n; ++i) {
139 if(do_dump(json_array_get(json, i), flags, depth + 1,
145 if(dump(",", 1, data) ||
146 dump_indent(flags, depth + 1, dump, data))
151 if(dump_indent(flags, depth, dump, data))
155 return dump("]", 1, data);
160 void *iter = json_object_iter((json_t *)json);
162 if(dump("{", 1, data))
165 return dump("}", 1, data);
166 if(dump_indent(flags, depth + 1, dump, data))
171 void *next = json_object_iter_next((json_t *)json, iter);
173 dump_string(json_object_iter_key(iter), dump, data);
174 if(dump(": ", 2, data) ||
175 do_dump(json_object_iter_value(iter), flags, depth + 1,
181 if(dump(",", 1, data) ||
182 dump_indent(flags, depth + 1, dump, data))
187 if(dump_indent(flags, depth, dump, data))
193 return dump("}", 1, data);
203 int json_dump(const json_t *json, const char *path, uint32_t flags)
205 FILE *output = fopen(path, "w");
209 return json_dumpf(json, output, flags);
212 char *json_dumps(const json_t *json, uint32_t flags)
217 strbuffer_init(&strbuff);
219 if(do_dump(json, flags, 0, dump_to_strbuffer, (void *)&strbuff))
222 if(dump_to_strbuffer("\n", 1, (void *)&strbuff))
225 result = strdup(strbuffer_value(&strbuff));
226 strbuffer_close(&strbuff);
231 int json_dumpf(const json_t *json, FILE *output, uint32_t flags)
233 if(do_dump(json, flags, 0, dump_to_file, (void *)output))
235 return dump_to_file("\n", 1, (void *)output);
238 int json_dumpfd(const json_t *json, int fd, uint32_t flags)
240 if(do_dump(json, flags, 0, dump_to_fd, (void *)&fd))
242 return dump_to_fd("\n", 1, (void *)&fd);