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Date: Sun, 24 Jul 2016 09:04:20 +0200
From: "Nicklas Karlsson (nicklas DOT karlsson17 AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
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Subject: Re: [geda-user] Parameter substitution --> hierachy
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> >>> - Pins for subschematic symbols don't require a pinnumber= attribute,
> >>> and non-slotted pins don't require a pinseq= attribute.
> >> 
> >> Have they ever required those?
> >
> > If you turn off hierarchy expansion gnetlist needs pin numbers, since
> > connectivity is identified by (refdes pinnumber).
> 
> Ok, sure, in that case they have netlist semantics attached.
> 
> And now I remember your problem with the substitution patch.  When
> hierarchy is not expanded, there will be nowhere to apply the
> substitutions.  Your spice netlister would need to transform the
> substitutions into instance parameters.  Is that difficult?
> 
> -- 
> Stephan
> 

To transform the substitutions into instance parameters sounds like a good solution because otherwise user is required to number pins even though they have no particular meaning in a hierarchical symbol.