const buildHashtagRegex = () => {
  try {
    return new RegExp(
      `^(([${WORD}_][${WORD}${HASHTAG_SEPARATORS}]*[${ALPHA}${HASHTAG_SEPARATORS}][${WORD}${HASHTAG_SEPARATORS}]*[${WORD}_])|([${WORD}_]*[${ALPHA}][${WORD}_]*))$`,
      'iu',