WooCommerce custom localization address format for specific country

I am printing address labels from WooCommerce and find that the line breaks for the addresses are not as I need them.

I found the code I need to change in woocommerce_localisation_address_formats hook and have added the line break but I do not know enough to add the correct code to the functions file thus avoiding going back to the old format on the next update.

This is the corrected replacement line:

'AU' => "{name}n{company}n{address_1}n{address_2}n{city}n{state} {postcode}n{country}",

Any help is appreciated.

Answer

You need to use woocommerce_localisation_address_formats filter hook as follows:

add_filter( 'woocommerce_localisation_address_formats', 'filter_localisation_address_formats' );
function filter_localisation_address_formats( $address_formats ){
    $address_formats['AU'] = "{name}n{company}n{address_1}n{address_2}n{city}n{state} {postcode}n{country}";

    return $address_formats;
}

Code goes in functions.php file of the active child theme (or active theme). Tested and works.