private static void addType(String t, Tokenizer st, Types.GroupBuilder builder) {
Repetition repetition = asRepetition(t, st);
// Read type.
String type = st.nextToken();
if ("group".equalsIgnoreCase(type)) {
addGroupType(st, repetition, builder);
} else {
addPrimitiveType(st, asPrimitive(type, st), repetition, builder);
}
}
