Re: [Sbcl-help] *print-readably* on arrays

[Nikodemus S. <nik...@ra...>]

On Sat, Dec 20, 2003 at 10:35:15PM -0800, John Klein wrote:

> Is there any way to do *print-readably* on specialised arrays?
> This was an extension in CMUCL that doesn't seem to
> be present in SBCL, unless there is some variable to toggle it
> on and off.

As far as I can tell SBCL doesn't support it out of the box,
but it's fairly easy to write a PRINT-READABLE-ARRAY function
that prints arrays readably using #.(MAKE-ARRAY ...) syntax.

Loading the attached file into a fresh SBCL patches such behaviour in
place, if you really need the printer to do this. Beware: the code
hasn't really been tested -- but it "seems" to work.

Alternatively, you could hande PRINT-NOT-READABLE error, and call
PRINT-READABLE-FOO on PRINT-NOT-READABLE-OBJECT. That would be
be more portable, but admittedly not very helpful if you eg. want to
print with FORMAT.

Cheers,

 -- Nikodemus