Customizing Woocommerce functions

Hi, I’m working on an e-commerce site using the woocommerce plugin and I would like to make some customizations to its functions, namely ones relative to breadcrumbs.

I’ve found tutorials but they all deal with using a child theme’s function.php file. This only seems to apply if one is using an Woocommerce-enabled Wootheme.

I am using my own theme, coupled with a child theme but that doesn’t apply as the functions I want to customize are relative to the woocommerce plugin directory.

Is there any way to create a “child-theme” for the woocommerce plugin itself? A way to make code modifications in a non-destructive manner?

Thanks,
Rene

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This is the snippet I’m working with right now:

add_filter( ‘woocommerce_breadcrumb_defaults’, ‘jk_change_breadcrumb_home_text’ );
function jk_change_breadcrumb_home_text( $defaults ) {
// Change the breadcrumb home text from ‘Home’ to ‘Shop Home’
$defaults[‘home’] = ‘Shop Home’;
return $defaults;
}

add_filter( ‘woocommerce_breadcrumb_home_url’, ‘woo_custom_breadrumb_home_url’ );
function woo_custom_breadrumb_home_url() {
return ‘new url’;
}