In this example, protocol is "zip", left location is
"reference/fopen.htm", anchor is "syntax" and right location
-is "file:archives/cpp_doc.zip". It is used by zip handler
+is "file:archives/cpp\_doc.zip". It is used by zip handler
to determine in what file this particular zip VFS is stored.
In fact there are two protocols used in this example: zip and file.