+# Now re-scan, but only for words that occur in the title
+# This time, use a Query object for the start-term
+my $q = Net::Z3950::ZOOM::query_create();
+Net::Z3950::ZOOM::query_prefix($q, '@attr 1=4 w');
+($ss, $n) = scan($conn, 1, $q, 6);
+
+$previous = ""; # Sorts before all legitimate terms
+foreach my $i (1 .. $n) {
+ my $term = Net::Z3950::ZOOM::scanset_term($ss, $i-1, $occ, $len);
+ ok(defined $term && $len eq length($term),
+ "got title term $i of $n: '$term' ($occ occurences)");
+ ok($term ge $previous, "title term '$term' ge previous '$previous'");
+ $previous = $term;
+ ok((grep { $term eq $_ } @terms), "title term was in term list");
+}
+
+Net::Z3950::ZOOM::scanset_destroy($ss);
+ok(1, "destroyed second scanset");
+
+# Now re-do the same scan, but limiting the results to four terms at a
+# time. This time, use a CQL query
+Net::Z3950::ZOOM::connection_option_set($conn, number => 4);
+Net::Z3950::ZOOM::connection_option_set($conn, cqlfile =>
+ "samples/cql/pqf.properties");
+
+$q = Net::Z3950::ZOOM::query_create();
+Net::Z3950::ZOOM::query_cql($q, 'title=w');
+($ss, $n) = scan($conn, 1, $q, 4);
+# Get last term and use it as seed for next scan
+my $term = Net::Z3950::ZOOM::scanset_term($ss, $n-1, $occ, $len);
+ok(Net::Z3950::ZOOM::scanset_option_get($ss, "position") == 1,
+ "seed-term is start of returned list");
+ok(defined $term && $len eq length($term),
+ "got last title term '$term' to use as seed");
+
+Net::Z3950::ZOOM::scanset_destroy($ss);
+ok(1, "destroyed third scanset");
+
+# We want the seed-term to be in "position zero", i.e. just before the start
+Net::Z3950::ZOOM::connection_option_set($conn, position => 0);
+($ss, $n) = scan($conn, 0, "\@attr 1=4 $term", 2);
+ok(Net::Z3950::ZOOM::scanset_option_get($ss, "position") == 0,
+ "seed-term before start of returned list");
+
+# Silly test of option setting and getting
+Net::Z3950::ZOOM::scanset_option_set($ss, position => "fruit");
+ok(Net::Z3950::ZOOM::scanset_option_get($ss, "position") eq "fruit",
+ "option setting/getting works");
+
+Net::Z3950::ZOOM::scanset_destroy($ss);
+ok(1, "destroyed fourth scanset");
+
+# There is no obvious use for scanset_option_set(), and little to be
+# done with scanset_option_get(); and I can't find a server that
+# returns display terms different from its terms.
+
+
+sub scan {
+ my($conn, $startterm_is_query, $startterm, $nexpected) = @_;
+
+ my $ss;
+ if ($startterm_is_query) {
+ $ss = Net::Z3950::ZOOM::connection_scan1($conn, $startterm);
+ } else {
+ $ss = Net::Z3950::ZOOM::connection_scan($conn, $startterm);
+ }
+
+ $errcode = Net::Z3950::ZOOM::connection_error($conn, $errmsg, $addinfo);
+ ok($errcode == 0, "scan for '$startterm'");
+
+ my $n = Net::Z3950::ZOOM::scanset_size($ss);
+ ok(defined $n, "got size");
+ ok($n == $nexpected, "got $n terms (expected $nexpected)");
+ return ($ss, $n);
+}