RE: Final BNF Changes?

Hi Alex!

On Tue, 2008-06-03 at 09:40 -0400, Alex Szalay wrote:
> I am not sure why we need a separate COORDSYS function, why can't we just
> use a literal string type. This seems like an unecessary complication. WHat
> does this give us that we do not have with a string type? Or did I
> misunderstand? Could you enclose an example how we would use this?
>
> --Alex

Sorry Alex, this is a mistake/oversight on my part. We are still doing exactly as you thought, using a literal string type. I've just mixed up two ideas in haste. The COORDSYS function is entirely separate: a utility function for extracting the coordsys string from a geometry. But I've stupidly giving them the same BNF tag. I'll rename one to correct the fault.

Regards
Jeff

-- 
Jeff Lusted               tel: +44 (0)116 252 3581
Astrogrid Project         mob: +44 (0)7973 492290
Dept Physics & Astronomy  email: jl99-at-star.le.ac.uk
University of Leicester   web: http://www.astrogrid.org