} else if (query instanceof RangeQuery) {
String field = ((RangeQuery)query).getField();
IndexReader ir = getReaderForField(field);
extract(query.rewrite(ir), terms);
} else if (query instanceof MultiPhraseQuery) {
final MultiPhraseQuery mpq = (MultiPhraseQuery) query;
final List termArrays = mpq.getTermArrays();
final int[] positions = mpq.getPositions();
if (positions.length > 0) {
int maxPosition = positions[positions.length - 1];
for (int i = 0; i < positions.length - 1; ++i) {
if (positions[i] > maxPosition) {
maxPosition = positions[i];
}
}
final List[] disjunctLists = new List[maxPosition + 1];
int distinctPositions = 0;
for (int i = 0; i < termArrays.size(); ++i) {
final Term[] termArray = (Term[]) termArrays.get(i);
List disjuncts = disjunctLists[positions[i]];
if (disjuncts == null) {
disjuncts = (disjunctLists[positions[i]] = new ArrayList(termArray.length));
++distinctPositions;
}
for (int j = 0; j < termArray.length; ++j) {
disjuncts.add(new SpanTermQuery(termArray[j]));
}
}
int positionGaps = 0;
int position = 0;
final SpanQuery[] clauses = new SpanQuery[distinctPositions];
for (int i = 0; i < disjunctLists.length; ++i) {
List disjuncts = disjunctLists[i];
if (disjuncts != null) {
clauses[position++] = new SpanOrQuery((SpanQuery[]) disjuncts
.toArray(new SpanQuery[disjuncts.size()]));
} else {
++positionGaps;
}
}
final int slop = mpq.getSlop();
final boolean inorder = (slop == 0);
SpanNearQuery sp = new SpanNearQuery(clauses, slop + positionGaps, inorder);
sp.setBoost(query.getBoost());
extractWeightedSpanTerms(terms, sp);