Re: [Discuss-gnuradio] Re: VRT_49.0 Protocol Spec

[Eric Blossom]

On Mon, Apr 26, 2010 at 03:26:46PM -0700, Matt Ettus wrote:
> On 04/26/2010 03:19 PM, Marcus D. Leech wrote:
> >Optional fields, optional packing formats.  Rather a nightmare.  Doing a
> >Wireshark parser is going to
> >   be just so much fun :-)
> 
> 
> We use a very well defined subset of VRT which makes parsing a lot
> easier.  We don't use class fields, for example.
> 
> Matt

FWIW, the code that's already written handles all of the cases
consistently.  It wasn't a big deal.  There's a finite set of stuff
and there's some machine generated code that handles all the optionally
there/not-there cases.

Eric