docs: public static boolean isExplicitlyRequested(String candidate, String... indices) {
          boolean result = false;
          for (String indexOrAlias : indices) {
              boolean include = true;
              if (indexOrAlias.charAt(0) == '+' || indexOrAlias.charAt(0) == '-') {
                  include = indexOrAlias.charAt(0) == '+';
                  indexOrAlias = indexOrAlias.substring(1);
              }
              if (indexOrAlias.equals("*") || indexOrAlias.equals("_all")) {
                  return false;
              }
              if (Regex.isSimpleMatchPattern(indexOrAlias)) {
                  if (Regex.simpleMatch(indexOrAlias, candidate)) {
                      if (include) {
                          result = true;
                      } else {
                          return false;
                      }
                  }
              } else {
                  if (candidate.equals(indexOrAlias)) {
                      if (include) {
                          result = true;
                      } else {
                          return false;
                      }
                  }
              }
          }
          return result;
      }