From 1e87951df5ab94375b732f2094553ac044f50583 Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <fox@madoka.volgo-balt.ru>
Date: Fri, 12 Nov 2010 15:52:00 +0300
Subject: [PATCH] update_rss_feed: lowercase and strip duplicate tags before
 checking for filters

---
 functions.php | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/functions.php b/functions.php
index 127704990..f7a54b7c2 100644
--- a/functions.php
+++ b/functions.php
@@ -1016,6 +1016,10 @@
 				$entry_tags = $entry_tags[1];
 
 				$entry_tags = array_merge($entry_tags, $additional_tags);
+				$entry_tags = array_unique($entry_tags);
+
+				for ($i = 0; $i < count($entry_tags); $i++)
+					$entry_tags[$i] = mb_strtolower($entry_tags[$i], 'utf-8');
 
 				if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 					_debug("update_rss_feed: unfiltered tags found:");
@@ -1122,7 +1126,8 @@
 					/* Collect article tags here so we could filter by them: */
 
 					$article_filters = get_article_filters($filters, $entry_title, 
-							$entry_content, $entry_link, $entry_timestamp, $entry_author, $entry_tags);
+						$entry_content, $entry_link, $entry_timestamp, $entry_author, 
+						$entry_tags);
 
 					if (defined('DAEMON_EXTENDED_DEBUG') || $_REQUEST['xdebug']) {
 						_debug("update_rss_feed: article filters: ");