Re: Observer pattern limitations


"David Barrett-Lennard" wrote:

<snip>

By contrast, most spreadsheets use an algorithm called "topological
sort". This involves sorting all the nodes to be calculated based on
the partial ordering defined by the dependency edges.

You may be interested in this:

http://pycells.pyworks.org/Blog

It's a blog about PyCells, which is a port of Cells from a CLOS
extension.

That's about all I know. In reading the blog tonight, a few things rang
a bell with me concerning the discussion we've been having here. So
thought you might find it interesting.


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