I'm trying to write my vqmod .xml, but nothing to work? if I try to add change in all catalog/* files. It works good for other (system/*, admin/*) files, but nothing changes? if I try to do something like this:
<file name="catalog/controller/checkout/cart.php">
<operation>
<search position="replace"><![CDATA[
$json['total'] = sprintf($this->language->get('text_items'), $this->cart->countProducts() + (isset($this->session->data['vouchers']) ? count($this->session->data['vouchers']) : 0), $this->currency->format($total));
]]></search>
<add trim="true"><![CDATA[
$json['total'] = sprintf($this->language->get('text_items'), $this->cart->countProducts() + (isset($this->session->data['vouchers']) ? count($this->session->data['vouchers']) : 0), $this->currency->format($total));
]]></add>
</operation>
</file>
what am I doing wrong?