public static void convertRecord(Record rec) {
if (rec == null) return;
if (rec.getLeader() != null) rec.setLeader(convertString(rec.getLeader()));
for (Field field : rec.getFields()) {
if (field.isControlField()) {
String newData = convertString(field.getValue());
field.setValue(newData);
} else {
for (Subfield subfield : field.getSubfields()) {
String newData = convertString(subfield.getValue());
subfield.setValue(newData);
}
}
}
}
