more efficient + fixing an oops

git-svn-id: file:///svn/phpbb/trunk@6303 89ea8834-ac86-4346-8a33-228a782c2dd0

phpBB/includes/functions_template.php

@@ -105,8 +105,7 @@ class template_compile
 			{
 				// This matches the information gathered from the internal PHP lexer
 				$match = array(
-					'#<\?.*?\?>#s',
-					'#<[%?]=.*?\?>#s',
+					'#<([\?%])=?.*?\1>#s',
 					'#<script\s+language\s*=\s*(["\']?)php\1\s*>.*?</script\s*>#s',
 					'#<\?php(?:\r\n?|[ \n\t]).*?\?>#s'
 				);