Two wishes

[mengstr]

1. This I don't care about that much, it's just a small annoyance that I can't put a tunnel that is not connected to anything on the design without attaching a wire segment to it. The first one below errors and the second one is just fine.

2. The second one I care for a bit more. I'd like some way of detecting unused tunnels. If I connect a tunnel to an output (or actually a wire to an output) and I don't use that signal anywhere I don't consider it an error, but a DRC to check for that so I can clean up when I'm done would be great. I guess it's basically just a check for nets that are only having one single signal attached to it. Now when thinking about it it might end up a problem with sub circuits, the DRC should only be run on the currently opened design, not on sub circuits.

I had hoped I could just parse the .dig-files and find the net names and count the number of usages, but no joy. You create the nets at runtime after parsing the locations of the components and wires - which in hindsight is the only reasonable way of doing it. ;-)