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Date:	Tue, 8 Sep 2015 20:58:58 -0400
Message-Id:	<201509090058.t890wwDB014552@envy.delorie.com>
From:	DJ Delorie <dj AT delorie DOT com>
To:	geda-user AT delorie DOT com
In-reply-to:	<55EF7C26.8080108@ecosensory.com> (message from John Griessen on
	Tue, 08 Sep 2015 19:24:06 -0500)
Subject:	Re: [geda-user] New experimental netlist features
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> If a buss is labelled

buss (n) a kiss, or (v) to kiss.  I don't label mine ;-)

> [0..3] and is in contact with a buss having label x[0..31] all the
> info is there to figure out that the [0..3] buss is called x[0..3]

It's the "and is in contact with" that's the problem.  In gnetlist,
all net segments that are connected are considered as one net.  A
collection of connected bus segments would be one bus.  Naming
different segments of that bus differently causes ambiguity.

The problem is as pictured here:

  http://www.delorie.com/pcb/bus-pins.html

If a bus has multiple signals in it, and you give different ends (or
branches) of the bus different netnames, you've created a conflict
that the netlister has to magically resolve.

The way bus segments work *now*, the bus segment itself is the magic
that keeps the nets connected to the bus rippers from being
"connected" and thus they're allowed to have different names.

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