uplevel #0 source <filename with spaces>

What's the right way to handle this:

uplevel #0 source [file join $dir file.tcl]

if $dir may contain spaces? I've tried all sorts of
ways to quote the filename to protect it, nothing seems
to work. The only solution I've come up with is regsub:

uplevel #0 source [regsub -all " " \
[file join $dir file.tcl] "\\ "]

but there's got to be a better way. Is there?

Thanks,

Phil
--
Phil Mercurio
mercurio@xxxxxxxxx

http://www.thyrd.org/mercurio
.

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