Single Listing Permalink

Hi,

first of all, thanks for the amazing script.

As deafult the listing page uses the overall permalink setup, so if I use “/blog/%postname%/” for the blog section also the listing page will use the slug “blog”.

My question is, how can I not use the “blog” slug and use the directory slug instead?

I read here on the support forum a similar request with the Post ID, but I would like to use the post_name function. I tried with this code, the first part works well, but something is wrong on the rewrite rule (second part).

function acadp_post_type_link( $post_link, $post = 0 ) {
    if( $post->post_type === 'acadp_listings' ) {
	$permalink_settings = get_option( 'acadp_permalink_settings' );
        return home_url( $permalink_settings['listing'].'/' . $post->post_name . '/' );
    } else {
        return $post_link;
    }
}
add_filter( 'post_type_link', 'acadp_post_type_link', 1, 3 );

function acadp_rewrites_init(){
    $permalink_settings = get_option( 'acadp_permalink_settings' );
    add_rewrite_rule( $permalink_settings['listing'].'/([0-9]+?$', 'index.php?post_type=acadp_listings&p=$matches[1]', 'top' );
}
add_action( 'init', 'acadp_rewrites_init' );

Thanks