On Wed, Apr 16, 2008 at 8:19 AM, derwisch <
[EMAIL PROTECTED]> wrote:
>
> On Apr 15, 8:01 pm, "Edward K. Ream" <[EMAIL PROTECTED]> wrote:
> > That was my first thought too. But two clones can share the same
> parent.
>
> Ouch. That's where the DAG analogue breaks, or even the analogue with
> graphs in general. Didn't think of that.
>
> In order to maintain the analogy, would it be possible to disallow
> "identical twins", so to say? Obviously this would mean getting rid of
> the Clone Node function and having "Paste node as clone" as the normal
> way of producing clones. Or are there use cases for having multiple
> clones as siblings?
Almost anything is possible, but I'm not going to consider doing this.
>
> On a related note, how would unified-node versions of Leo handle
> legacy files? Will there be an import function? If you'd be willing to
> make a change taht radical, the import function would then merge
> idenical twins to a single node (and give a warning about it).
The unified-node version of Leo isn't going to happen. The reason I shall
finish the code is because very similar code could be used in the graph
world with the present vnode/tnode scheme. Debugging now, while the code is
fresh in my mind, will save time later.
I'm not sure in detail how the unified-node version of Leo will handle
legacy files. The sax read code will, of course, remain basically
unchanged: what will change is the post-parser code that converts the
sax-nodes into Leo nodes. It has been my experience that this conversion
process is straightforward.
>
> I am boldly proposing this for three reasons: Out of some kindergarten
> spite ("you destroy my card house, so I'm destroying someone else's"),
> because I am right now seeing no use for identical twins, and because
> I think it is a very good idea to keep the analogy to some very well
> described and explored mathematical structure.
Your house will remain intact for the foreseeable future. Whatever happens
to the Leo's file format, it will support legacy formats.
Edward
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