extended search fix

This patch fixes a bug in the search code and did some
optimizations. Furtheron queries with only excluded
words will be rejected because they won't produce
usable output and waste only time.

darcs-hash:20050604212026-7ef76-7a096791875407859eae390290165e4b6e7ef082.gz

1 files changed, 3 insertions, 0 deletions

diff --git a/inc/search.php b/inc/search.php
index 654f1ab69..b96f2444d 100644
--- a/inc/search.php
+++ b/inc/search.php
@@ -317,6 +317,9 @@ function search_fulltext(&$data,$base,$file,$type,$lvl,$opts){
         break;
     }
   }
+
+  // a search without any posword is useless
+  if (!count($poswords)) return true;
   
   $req  = count($poswords) ? $reg .= '^(?=.*?'.join(')(?=.*?',$poswords).')' : '^';
   $reg .= count($negwords) ? '((?!'.join('|',$negwords).').)*$' : '.*$';