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Subject:	Re: gEDA and it's future with Scheme & Guile was Re: [geda-user] Project leadership
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From:	John Doty <jpd AT noqsi DOT com>
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On Jan 1, 2016, at 3:17 PM, Roland Lutz <rlutz AT hedmen DOT org> wrote:

> On Tue, 29 Dec 2015, John Doty wrote:
>> There are several alternate notions of how slotting should work. If =
you want slotting in gschem, you should load a suitable script.
>=20
> Could you please explain in more detail how you think slotting should =
work?
>=20
>=20

I=92m agnostic, except that it should be handled by optional scripts, =
not hard-wired into gschem and gnetlist. Also, we should not be using =
pinseq for both ordering connections in flows like SPICE and identifying =
pins for slotting. How we untangle this is a tough question. At least =
gnet-spice-noqsi doesn=92t depend on pinseq, although it defaults to =
using pinseq for backward compatibility.

Various people have suggested various approaches over the years. I would =
invite them to restate their positions or point us at their posts.

One problem with heterogeneous slotting is knowing when a bunch of =
symbols with the same refdes form a complete description of a part =
without duplication. My gnetlist back ends gnet-check-pincount and =
gnet-check-duplicates are effective at detecting errors in heterogeneous =
slotting from the bottom up. They don=92t require that the symbols =
somehow encode the knowledge of which other symbols they should partner =
with.

John Doty              Noqsi Aerospace, Ltd.
http://www.noqsi.com/
jpd AT noqsi DOT com



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