From 00d2959ac17d719af9cce1c320092e2fbed182a7 Mon Sep 17 00:00:00 2001
From: Frank Lichtenheld <frank@lichtenheld.de>
Date: Sat, 20 Oct 2007 19:12:14 +0200
Subject: [PATCH 1/1] Packages::Search: ignore empty keywords after stemming

Stemming can output empty strings, e.g. for numbers.
Ignore these.

Reported by Cyril Jaquier <cyril jaquier -at- jaqpot net>
---
 lib/Packages/Search.pm | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/Packages/Search.pm b/lib/Packages/Search.pm
index d387267..be7bebd 100644
--- a/lib/Packages/Search.pm
+++ b/lib/Packages/Search.pm
@@ -209,10 +209,10 @@ sub do_xapian_search {
 	push @tmp, $keyword;
     }
     my $stemmer = Lingua::Stem->new();
-    my $stemmed_keywords = $stemmer->stem( @tmp );
+    my @stemmed_keywords = grep { length($_) } @{$stemmer->stem( @tmp )};
 
     my $db = Search::Xapian::Database->new( $dbpath );
-    my $enq = $db->enquire( OP_OR, @$keywords, @$stemmed_keywords );
+    my $enq = $db->enquire( OP_OR, @$keywords, @stemmed_keywords );
     debug( "Xapian Query was: ".$enq->get_query()->get_description(), 1) if DEBUG;
     my @matches = $enq->matches(0, 999);
 
-- 
2.39.2