-\f
-static size_t
-json_string_serialized_length(const char *string)
-{
- size_t length;
- uint8_t c;
-
- length = strlen("\"\"");
-
- while ((c = *string++) != '\0') {
- switch (c) {
- case '"':
- case '\\':
- case '\b':
- case '\f':
- case '\n':
- case '\r':
- case '\t':
- length += 2;
- break;
-
- default:
- if (c >= 32) {
- length++;
- } else {
- /* \uXXXX */
- length += 6;
- }
- break;
- }
- }
-
- return length;
-}
-
-static size_t
-json_object_serialized_length(const struct shash *object)
-{
- size_t length = strlen("{}");
-
- if (!shash_is_empty(object)) {
- struct shash_node *node;
-
- /* Commas and colons. */
- length += 2 * shash_count(object) - 1;
-
- SHASH_FOR_EACH (node, object) {
- const struct json *value = node->data;
-
- length += json_string_serialized_length(node->name);
- length += json_serialized_length(value);
- }
- }
-
- return length;
-}
-
-static size_t
-json_array_serialized_length(const struct json_array *array)
-{
- size_t length = strlen("[]");
-
- if (array->n) {
- size_t i;
-
- /* Commas. */
- length += array->n - 1;
-
- for (i = 0; i < array->n; i++) {
- length += json_serialized_length(array->elems[i]);
- }
- }
-
- return length;
-}
-
-/* Returns strlen(json_to_string(json, 0)), that is, the number of bytes in the
- * JSON output by json_to_string() for 'json' when JSSF_PRETTY is not
- * requested. (JSSF_SORT does not affect the length of json_to_string()'s
- * output.) */
-size_t
-json_serialized_length(const struct json *json)
-{
- switch (json->type) {
- case JSON_NULL:
- return strlen("null");
-
- case JSON_FALSE:
- return strlen("false");
-
- case JSON_TRUE:
- return strlen("true");
-
- case JSON_OBJECT:
- return json_object_serialized_length(json->u.object);
-
- case JSON_ARRAY:
- return json_array_serialized_length(&json->u.array);
-
- case JSON_INTEGER:
- return snprintf(NULL, 0, "%lld", json->u.integer);
-
- case JSON_REAL:
- return snprintf(NULL, 0, "%.*g", DBL_DIG, json->u.real);
-
- case JSON_STRING:
- return json_string_serialized_length(json->u.string);
-
- case JSON_N_TYPES:
- default:
- NOT_REACHED();
- }
-}