Was:
The path part contains a host specific
object name, an optional version
number, and an optional list of attributes.
If these latter fields are present
thy are separated from the host specific
object name and from each other by
the characters "%00" (percent, zero,
zero), this being and escaped string
terminator (null). If the optional
list of attributes is provided, the
version number must be present, but
may be the empty string (i.e. the
first attribute would be separated
from the host specific name by "%00%00").
External Prospero links are represented
directly as URLs of the underlying
access method and are not represented
as Prospero URLs.