dnd-get-local-file-name
dnd-get-local-file-name is a compiled Lisp function in `dnd.el
'.
(dnd-get-local-file-name URI &optional MUST-EXIST)
Return file name converted from file:/// or file: syntax.
URI is the uri for the file. If MUST-EXIST is given and non-nil,
only return non-nil if the file exists.
Return nil if URI is not a local file.