[1] The Hierarchy Content Provider (Kai Sommerfeld 著, 版) <https://www.openoffice.org/ucb/docs/ucp-ref/hierarchy-ucp.html>
Each HCP content has an identifier corresponding to the following scheme:
vnd.sun.star.hier:/<path>
where <path> is a hierarchical path of the form
<name>/<name>/.../<name>
where <name> is a string encoded according to the URL conventions.
Examples:
vnd.sun.star.hier:/ ( The URL of the HCP Root Folder )
vnd.sun.star.hier:/Bookmarks/Sun%20Microssystems%20Home%20Page
vnd.sun.star.hier:/Workplace/Printers