void (@NotNull @NonNls StringBuilder sb, char each) { if (each == '<' || each == '>') { sb.append(each == '<' ? "&lt;" : "&gt;"); } else if (!Verifier.isXMLCharacter(each)) { String s = Long.toHexString(each); sb.append("0x").append(s.toUpperCase(Locale.ENGLISH)); } else { sb.append(each); } }