FieldInfo fi = fieldInfos.fieldInfo(i);
if (fi.isIndexed && !fi.omitNorms) {
// look first if there are separate norms in compound format
String fileName = segment + ".s" + fi.number;
Directory d = directory();
if(!d.fileExists(fileName)){
fileName = segment + ".f" + fi.number;
d = cfsDir;
}
norms.put(fi.name, new Norm(d.openInput(fileName), fi.number));
}