Function json_get_object_key_int

strings/json_lib.c:2159–2201

Simple json lookup for a value by the key. Expects JSON object. Only scans the 'first level' of the object, not the nested structures. @param js [in] json object to search in @param js_end [in] end of json string @param key [in] key to search for @param key_end [in] - " - @param value_start [out] pointer into js (value or c

  @retval JSV_NOTHING - no such key found.
*/
enum json_types json_get_object_key_int(json_engine_t *je, const char *js,
                                        const char *js_end, const char *key,
                                        const char **value, int *value_len)
{
 const char *key_end= key + strlen(key);
  json_string_t key_name;
  int n_keys= 0;

  json_string_set_cs(&key_name, &my_charset_utf8mb4_bin);

  json_scan_start(je, &my_charset_utf8mb4_bin,(const uchar *) js,
                  (const uchar *) js_end);

  if (json_read_value(je) ||
      je->value_type != JSON_VALUE_OBJECT)
    goto err_return;

  while (!json_scan_next(je))
  {
    switch (je->state)
    {
    case JST_KEY:
      n_keys++;
      json_string_set_str(&key_name, (const uchar *) key,
                          (const uchar *) key_end);
      if (json_key_matches(je, &key_name))
        return smart_read_value(je, value, value_len);

      if (json_skip_key(je))
        goto err_return;

      break;

    case JST_OBJ_END:
      *value= (const char *) (je->s.c_str - je->sav_c_len);
      *value_len= n_keys;
      return JSV_NOTHING;
    }
  }

err_return:
  return JSV_BAD_JSON;
}

enum json_types json_get_object_key(const char *js, const char *js_end,
                                    const char *key, const char **value,