Function isAlphanumeric

plugins/plugin_utils/plugin_utils.h:122–127

}

inline bool isAlphanumeric(const char c) {
  if (isAlphabetic(c) || isNumeric(c)) {
    return true;
  }
  return false;
}

inline bool isVisible(const char c) {
  if (isAlphanumeric(c) || isPunctuation(c)) {