Hi David,

On Mon, Sep 10, 2007 at 08:55:16PM +0200, David Hansen wrote:
> > +*** The new command `pp-macroexpand-last-sexp' pretty-prints the
> > +macroexpansion of the s-expression before point.
> > +
> 
> Some time ago I wrote something similar but the output of the
> macroexpansion is displayed in a separate buffer (similar how it works
> in the slime package, in case you know it).  If you are interested it's
> in the gnu.emacs.sources archive or I can send it / post it here.

Have a look at pp-display-expression (in the sources with this patch applied)
or at pp-eval-expression in the vanilla sources.  The expansion is printed
into a separate buffer if the expression is too long for the minibuffer.

	Hannes