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_indent(uint32_t flags, int depth, dump_func dump, void *data)
34 if(JSON_INDENT(flags) > 0)
37 int ws_count = JSON_INDENT(flags) * depth;
39 if(dump("\n", 1, data))
45 ws_buffer = alloca(ws_count);
46 memset(ws_buffer, ' ', ws_count);
47 return dump(ws_buffer, ws_count, data);
52 static int dump_string(const char *str, dump_func dump, void *data)
56 if(dump("\"", 1, data))
66 while(*end && *end != '\\' && *end != '"' && (*end < 0 || *end > 0x1F))
70 if(dump(str, end - str, data))
77 /* handle \, ", and control codes */
81 case '\\': text = "\\\\"; break;
82 case '\"': text = "\\\""; break;
83 case '\b': text = "\\b"; break;
84 case '\f': text = "\\f"; break;
85 case '\n': text = "\\n"; break;
86 case '\r': text = "\\r"; break;
87 case '\t': text = "\\t"; break;
90 sprintf(seq, "\\u00%02x", *end);
97 if(dump(text, length, data))
104 return dump("\"", 1, data);
107 static int do_dump(const json_t *json, uint32_t flags, int depth,
108 dump_func dump, void *data)
110 switch(json_typeof(json)) {
112 return dump("null", 4, data);
115 return dump("true", 4, data);
118 return dump("false", 5, data);
125 size = asprintf(&buffer, "%d", json_integer_value(json));
129 ret = dump(buffer, size, data);
139 size = asprintf(&buffer, "%.17f", json_real_value(json));
143 ret = dump(buffer, size, data);
149 return dump_string(json_string_value(json), dump, data);
154 int n = json_array_size(json);
156 if(dump("[", 1, data))
159 return dump("]", 1, data);
160 if(dump_indent(flags, depth + 1, dump, data))
163 for(i = 0; i < n; ++i) {
164 if(do_dump(json_array_get(json, i), flags, depth + 1,
170 if(dump(",", 1, data) ||
171 dump_indent(flags, depth + 1, dump, data))
176 if(dump_indent(flags, depth, dump, data))
180 return dump("]", 1, data);
185 void *iter = json_object_iter((json_t *)json);
187 if(dump("{", 1, data))
190 return dump("}", 1, data);
191 if(dump_indent(flags, depth + 1, dump, data))
196 void *next = json_object_iter_next((json_t *)json, iter);
198 dump_string(json_object_iter_key(iter), dump, data);
199 if(dump(": ", 2, data) ||
200 do_dump(json_object_iter_value(iter), flags, depth + 1,
206 if(dump(",", 1, data) ||
207 dump_indent(flags, depth + 1, dump, data))
212 if(dump_indent(flags, depth, dump, data))
218 return dump("}", 1, data);
228 int json_dump(const json_t *json, const char *path, uint32_t flags)
232 FILE *output = fopen(path, "w");
236 result = json_dumpf(json, output, flags);
242 char *json_dumps(const json_t *json, uint32_t flags)
247 if(strbuffer_init(&strbuff))
250 if(do_dump(json, flags, 0, dump_to_strbuffer, (void *)&strbuff))
253 if(dump_to_strbuffer("\n", 1, (void *)&strbuff))
256 result = strdup(strbuffer_value(&strbuff));
257 strbuffer_close(&strbuff);
262 int json_dumpf(const json_t *json, FILE *output, uint32_t flags)
264 if(do_dump(json, flags, 0, dump_to_file, (void *)output))
266 return dump_to_file("\n", 1, (void *)output);