Breadcrumbs are a common Web design pattern used by many sites to let the users know where they are in the site.
This class implements an interesting solution to simplify the generation of breadcrumb based Web interfaces.
It uses a convention that consists on using the current page URL and split it in parts that define links to the to each page in a breadcrumbs navigation bar.
This way the class can automatically generate a breadcrumbs navigation bar just by looking at the current page URL.