throws IOException {
SavedStreams streams = (SavedStreams) getPreviousTokenStream();
if (streams == null) {
streams = new SavedStreams();
streams.source = new StandardTokenizer(reader);
streams.result = new StandardFilter(streams.source);
streams.result = new StopFilter(streams.result, stoptable);
streams.result = new FrenchStemFilter(streams.result, excltable);
// Convert to lowercase after stemming!
streams.result = new LowerCaseFilter(streams.result);
setPreviousTokenStream(streams);