Re: paths are sensative to double separators

[Stephen J. Turnbull]

Giorgos Keramidas writes:

 > The double slash in Mercurial repositories is actually a semi-standard
 > way of referring to pathnames rooted at the `filesystem root' instead of
 > the default starting directory for the particular URI authority.

This is (or should be) defined by the scheme.  Emacs should only do
canonicalization when the scheme defines it, or there's clear user
demand for canonicalization in a widely used scheme.

 > RFC 2396

... is obsolete.  Cf. RFC 3986, which probably says the same thing but
I don't have time to check the details.

 > A list of URI schemes that support this sort of path-parsing would
 > be really nice to have as a customizable option :-)

Other way around.  See above.