On Wed, 01 Oct 2008 14:02:02 +0100
Peter Stephenson <pws@csr.com> wrote:
> What I was trying to do was use this to get lisp-like lists of
> arguments (since after the first word parentheses have to be balanced),
> but I can get that to work just by putting a dummy word in front, so
> it's actually not a major concern.

In case there's any interest, here's what I came up with for my own use.
The list-word function handle list-style trees showing what can follow what.
It's essentially yet another way of doing argument handling, optimised for
another different case.  The _dynamic_directory_name for my own use shows
roughly how to use this; it completes colon-separated parts as in
~[p1:u:main].

-- 
Peter Stephenson <pws@csr.com>                  Software Engineer
CSR PLC, Churchill House, Cambridge Business Park, Cowley Road
Cambridge, CB4 0WZ, UK                          Tel: +44 (0)1223 692070