retry_reopen($self, \&misc_enquire_once, $qr, $opt);
}
+sub ibx_matches_once { # retry_reopen callback
+ my ($self, $qr, $by_newsgroup) = @_;
+ # double in case no newsgroups are configured:
+ my $limit = scalar(keys %$by_newsgroup) * 2;
+ my $opt = { limit => $limit, offset => 0, relevance => -1 };
+ my $ret = {}; # newsgroup => $ibx of matches
+ while (1) {
+ my $mset = misc_enquire_once($self, $qr, $opt);
+ for my $mi ($mset->items) {
+ my $doc = $mi->get_document;
+ my $end = $doc->termlist_end;
+ my $cur = $doc->termlist_begin;
+ $cur->skip_to('Q');
+ if ($cur != $end) {
+ my $ng = $cur->get_termname; # eidx_key
+ $ng =~ s/\AQ// or warn "BUG: no `Q': $ng";
+ if (my $ibx = $by_newsgroup->{$ng}) {
+ $ret->{$ng} = $ibx;
+ }
+ } else {
+ warn <<EOF;
+W: docid=${\$mi->get_docid} has no `Q' (eidx_key) term
+EOF
+ }
+ }
+ my $nr = $mset->size;
+ return $ret if $nr < $limit;
+ $opt->{offset} += $nr;
+ }
+}
+
+# returns a newsgroup => PublicInbox::Inbox mapping
+sub newsgroup_matches {
+ my ($self, $qs, $pi_cfg) = @_;
+ my $qp = $self->{qp} //= mi_qp_new($self);
+ $qs .= ' type:inbox';
+ my $qr = $qp->parse_query($qs, $PublicInbox::Search::QP_FLAGS);
+ retry_reopen($self, \&ibx_matches_once, $qr, $pi_cfg->{-by_newsgroup});
+}
+
sub ibx_data_once {
my ($self, $ibx) = @_;
my $xdb = $self->{xdb};