+sub stream_thread_i { # PublicInbox::WwwStream::getline callback
+ my ($nr, $ctx) = @_;
+ return unless exists($ctx->{dst});
+ my $q = $ctx->{-queue};
+ while (@$q) {
+ my $level = shift @$q;
+ my $node = shift @$q or next;
+ my $cl = $level + 1;
+ unshift @$q, map { ($cl, $_) } @{$node->{children}};
+ if (my $smsg = $ctx->{-inbox}->smsg_mime($node->{smsg})) {
+ return thread_index_entry($ctx, $level, $smsg);
+ } else {
+ return ghost_index_entry($ctx, $level, $node);
+ }
+ }
+ join('', thread_adj_level($ctx, 0)) . ${delete $ctx->{dst}}; # skel
+}
+