Scott L. Burson wrote: 
On Thu, Sep 9, 2010 at 8:26 AM, Daniel Weinreb <dlw@itasoftware.com> wrote:
  
One of the very first things you want when
you start writing macros is for auto-indentation
to do the right thing.  The IDE can't just
know this for a macro.
    

Huh.  I always thought Zmacs did an adequate job of this.  Just know
what &BODY means and give me COM-INDENT-DIFFERENTLY for special cases,
and I'm pretty happy.
Yes, Zmacs knew about &rest, as does our stuff at ITA.
That automatically notes that the symbol name is
of the form  (a b c ... . rest), usually just (a .rest). 
(Dan will of course know what I'm referring to, but for everyone else,
the Zmacs command COM-INDENT-DIFFERENTLY -- bound to C-Tab, if memory
serves -- could be used to manually cycle through a series of
alternate indentation points for the current line.
Oh, I forgot about that one!  I probably didn't write
it.  There are a few gems in the Symbolics code
that would be nice to extract.
  I'm not aware of
an equivalent command having been implemented for GNU Emacs.)

-- Scott