The range type has a formal semantics (i.e. we've defined what we mean to match a range) but that's not been put in the 
spec; it's just contained in the thread starting at http://www-unix.gridforum.org/mail_archive/jsdl-wg/2005/03/msg00043.
html The final version we settled on should be described in the spec itself, because other people won't want to search 
our mailing list archives to find this out. :^)

Thanks to Michael Parkin for spotting this..