Haskell Virtual FS -- generic support for real or virtual filesystem in Haskell
Copyright (c) 2004-2005 John Goerzen, email@example.com
The idea of this module is to provide virtualization of filesystem calls.
In addition to the "real" system filesystem, you can also provide access
to other, virtual, filesystems using the same set of calls. Examples of
such virtual filesystems might include a remote FTP server, WebDAV server,
a local Hashtable, a ConfigParser object, or any other data structure
you can represent as a tree of named nodes containing strings.
Each HVFS function takes a HVFS "handle" (HVFS instance) as its
first parameter. If you wish to operate on the standard system filesystem,
you can just use SystemFS.
The MissingH.HVFS.IO.InstanceHelpers module contains some code to help
you make your own HVFS instances.
The HVFSOpenable class works together with the System.IO.HVIO module
to provide a complete virtual filesystem and I/O model that allows you
to open up virtual filesystem files and act upon them in a manner similar
to standard Handles.