input/regression/graphviz.ly

[Graham Percival]

Stan Sanderson wrote:
> Would you briefly explain what I might expect from the the graphviz.ly 
> example? I'm not sure whether #(graph-write graph (current-error-port)) 
> would/should do anything on my Mac. I do have Graphviz.app v.1.13 on my 
> machine, but have not worked with it.

Unfortunately I cannot, so I cc the message here for more comments.  My 
first impression is that this is a regtest for internal debugging.

In general, I recommend keeping everything on the mailists, since other 
people can answer questions that I cannot.  The lists are also archived, 
which sometimes comes in handy.

Cheers,
- Graham