adding solution to preg_replace error

components/CSS.php

@@ -165,16 +165,8 @@ protected function process(array $files)
     protected function removeCssComments(&$code)
     {
         if (true === $this->view->removeComments) {
-
-            //https://stackoverflow.com/questions/1581049/preg-replace-out-css-comments
-            $regex = array(
-                "`^([\t\s]+)`ism"=>'',
-                "`^\/\*(.+?)\*\/`ism"=>"",
-                "`([\n\A;]+)\/\*(.+?)\*\/`ism"=>"$1",
-                "`([\n\A;\s]+)//(.+?)[\n\r]`ism"=>"$1\n",
-                "`(^[\r\n]*|[\r\n]+)[\s\t]*[\r\n]+`ism"=>"\n"
-            );
-            $code = preg_replace(array_keys($regex),$regex,$code);
+            //https://stackoverflow.com/a/3984887
+            $code = preg_replace( '!/\*[^*]*\*+([^/][^*]*\*+)*/!' , '' , $code );
         }
     }