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Subject: Re: [geda-user] The new to do
From: John Doty <jpd AT noqsi DOT com>
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Date: Wed, 15 Jul 2015 16:20:47 -0600
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On Jul 15, 2015, at 3:40 PM, Chris Smith (space DOT dandy AT icloud DOT com) [via geda-user AT delorie DOT com] <geda-user AT delorie DOT com> wrote:

> 
>> On 15 Jul 2015, at 22:22, John Doty <jpd AT noqsi DOT com> wrote:
>> 
>> 
>>> On Jul 15, 2015, at 3:03 PM, Chris Smith (space DOT dandy AT icloud DOT com) [via geda-user AT delorie DOT com] <geda-user AT delorie DOT com> wrote:
>>> 
>>> Trace widths was just a real-world example of where this might be useful.
>> 
>> After years of dealing with DJ, I simply don’t believe that was his intent. If it was, he could easily have stated it in a more general way.
> 
> Which just proves that you went off half-cocked in response to an email that you didn't even bother to read properly. DJ was not part of that discussion. The 'trace widths' was a problem raised by Dave McGuire, which Roland Lutz and I then briefly discussed how to solve in a clean, general manner.

You wanted to change gschem, but no change is required. The problem is to give gnetlist a way to see net segments and their attributes. I have *never* opposed giving gnetlist better views into the schematic data. Indeed, I encourage all such efforts. 

My one foray into this area was the “attribute censorship bug”. Bas Gieltjes came up with the C side, and I did the scheme programming, but it was a real struggle with the developers to get the fix into the code. The result didn’t actually fix the bug: it was left to the user to script a fix. And thus, all my Makefiles have:

GNET=gnetlist -m censor-fix.scm

(see http://www.gedasymbols.org/user/john_doty/tools/censor-fix.scm)

After all that and not even a bug fix without a user patch, I’m disinclined to work on gnetlist again. But, if you want to write gnetlist scripts, you can now see all of the attributes with the same name on a symbol, rather than have gnetlist choose one and censor the rest. Or, more usefully with existing back ends, you can use the above script to complain of conflicts.

> Then you came running over to stomp on our sandcastles.
> 
> Chris
> 

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