[Sbcl-devel] Re: More pathname madness with #p""

[<fa...@gm...>]

On 31/08/05, Todd Sabin <ts...@op...> wrote:
> So an implementation should
> never give you a pathname with (:relative) as the directory component,
> and it seems perfectly legal for implementations to say that
> (make-pathname :directory '(:relative)) is either illegal, or means
> the same as (make-pathname :directory nil).
That sounds like a plausible interpretation, if indeed there is no
usage rule that distinguishes a directory NIL from a directory
'(:RELATIVE). But then, because of the read-write similarity
requirement, the canonicalization should happen within MAKE-PATHNAME,
that should either refuse '(:RELATIVE) and issue an error or (perhaps
more helpful to the user) check for it and canonicalize to NIL.

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