> At the meeting in Atlanta, it was agreed that we would mandate that both
> FTP and HTTP would be supported schemes for PrintURI and SendURI.
>> I would like to propose that we also include the FILE: scheme to this
> list. The FILE: scheme allows the server to print files that are
> on locally mounted file system volumes that are available to the server
>> We can talk about this at the teleconference or on the list.
a) without a standard way of loading a print server's disks with
any data, mandating support for the "file:" scheme would hardly
lead to interoperability.
b) While one can imagine "if you support remote printing at all,
you should be able to retrieve files from an HTTP server", since
it just requires a network connection, it doesn't make as much
sense to mandate a "file:" scheme because it presumes that the
print server has a file system with a naming system that is URL
c) the "file:" URL scheme is in serious need of attention: the
implementations (even on the same platform) are widely divergent,
and not conformant with the recommended practice in the RFCs.
It's not that this is really a terrible idea, it's just not clear
that it's useful to "mandate" something that by most measures
has to be optional.