1 files changed, 11 insertions, 2 deletions
diff --git a/lib/PublicInbox/OverIdx.pm b/lib/PublicInbox/OverIdx.pm
index bb3068dd..9fc51e5f 100644
--- a/lib/PublicInbox/OverIdx.pm
+++ b/lib/PublicInbox/OverIdx.pm
@@ -14,7 +14,7 @@ use base qw(PublicInbox::Over);
  use IO::Handle;
  use DBI qw(:sql_types); # SQL_BLOB
  use PublicInbox::MID qw/id_compress mids references/;
-use PublicInbox::SearchMsg;
+use PublicInbox::SearchMsg qw(subject_normalized);
  use Compress::Zlib qw(compress);
  use PublicInbox::Search;
  
@@ -237,6 +237,15 @@ sub parse_references ($$$) {
          \@keep;
  }
  
+# normalize subjects so they are suitable as pathnames for URLs
+# XXX: consider for removal
+sub subject_path ($) {
+        my ($subj) = @_;
+        $subj = subject_normalized($subj);
+        $subj =~ s![^a-zA-Z0-9_\.~/\-]+!_!g;
+        lc($subj);
+}
+
  sub add_overview {
          my ($self, $mime, $bytes, $num, $oid, $mid0) = @_;
          my $lines = $mime->body_raw =~ tr!\n!\n!;
@@ -252,7 +261,7 @@ sub add_overview {
          my $subj = $smsg->subject;
          my $xpath;
          if ($subj ne '') {
-                $xpath = PublicInbox::Search::subject_path($subj);
+                $xpath = subject_path($subj);
                  $xpath = id_compress($xpath);
          }
          my $dd = $smsg->to_doc_data($oid, $mid0);