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	Tue, 02 Jan 2018 12:32:08 -0800 (PST)
Date:	Tue, 2 Jan 2018 21:32:05 +0100
From:	"Nicklas Karlsson (nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
To:	geda-user AT delorie DOT com
Subject:	Re: [geda-user] why pinnumber in sym pins?
Message-Id:	<20180102213205.4565128f84cb6f27ef88033d@gmail.com>
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	<alpine DOT DEB DOT 2 DOT 20 DOT 1801022021340 DOT 14184 AT nimbus>
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On Tue, 2 Jan 2018 20:30:49 +0100 (CET)
Roland Lutz <rlutz AT hedmen DOT org> wrote:

> On Tue, 26 Dec 2017, karl AT aspodata DOT se wrote:
> > Why must one have a pinnumber attribute for each pin i a sym file:
> > http://wiki.geda-project.org/geda:master_attributes_list#pinnumber
> 
> The pin number is the main identifier of a pin inside a component.
> Having a pin without an identifier would only make sense if the behavior
> of that pin is defined in another way, and you never need to refer to
> that pin by its identifier.

Yes but ...

> > Wouldn't it be useful to allow  to have just a function (pinlabel)
> > attached to the pin without knowing which pinnumber it will end up on ?
> 
> You would still need some way of mapping the function to the pinnumber.

The default then not pinnumber identifier is available could be pinlabel or default could be to used pinnumber but no pinlabel in symbols.

Schematics are read by human so it make sense to use pinlabel as identifier.

To make symbols with pinnumber but no pinlabel might be a solution and then there is a need for a difference pinnumber may be hidden while pinlabel is visible?

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