This template outputs a URL for a link element or another element using linking attributes. If $xref points to a valid page or section, it uses a file name based on the ID of the target page plus mal.link.extension. Otherwise, the link will point to $href.

For inline links, $node should be the link element. For links from a links element, $node should be that links element, or the containing element when the links element is implicit.

This template first calls mal.link.target.custom with the same arguments. If that template returns a non-empty string, it is used as the return value, overriding any other behavior of this template.

If $xref contains a / or : character, this template calls mal.link.target.extended, which by default just uses $href instead. Override that template to provide extended xref behavior.