Method grepTag

app/actions.cpp:422–431

}  // Print::printMetadata

bool Print::grepTag(const std::string& key) {
  bool result = Params::instance().greps_.empty();
  for (auto const& g : Params::instance().greps_) {
    result = std::regex_search(key, g);
    if (result) {
      break;
    }
  }
  return result;
}

bool Print::keyTag(const std::string& key) {
  bool result = Params::instance().keys_.empty();