docs: public static boolean isEmoji(char c) {
  		return false ==  ((c == 0x0) || //
  				(c == 0x9) || //
  				(c == 0xA) || //
  				(c == 0xD) || //
  				((c >= 0x20) && (c <= 0xD7FF)) || //
  				((c >= 0xE000) && (c <= 0xFFFD)) || //
  				((c >= 0x10000) && (c <= 0x10FFFF)));
  	}