Re: [Pyparsing] Success (though minor) was: A newbie w/nested structures

[Tim C. <tim...@gm...>]

On Mon, 2007-09-10 at 11:04 +0100, Ralph Corderoy wrote:

> PyParsing has the same issue when trying to set up the data structures
> representing the grammar.  Instead of using `None' it has Forward().
> The idea is the same;  it's a placeholder that is later replaced by
> something else.  Something that exists later that didn't exist at the
> time the Forward() was required.
> 
> Once this concept clicks, you'll see it's really quite simple.  :-)

Thanks Ralph.

Tim <........patiently waiting for the click> :-)