Re: gEDA: Hierarchy in gschem and pcb

[al davis <ad106-at-NOSPAMfreeelectron_dot_net>]

On Saturday 06 May 2006 23:14, Dan McMahill wrote:
> I would really like to see true hierarchical support added to
> gnetlist. For driving spice or gnucap simulations thats
> really the right way to do it.

It makes a big difference to gnucap, and it will become more 
important in the future.  Spice flattens it anyway, so it 
doesn't really matter.

gschem doesn't do hierarchy, so how can gnetlist?  

The biggest deficiency in gnetlist is that it doesn't properly 
translate all symbols.  There should be some default rule that 
defines how unknown symbols are translated.  Something like 
everything is a subcircuit (type "X") might be appropriate.  I 
guess this is another reason why the Spice format must go away.

Then hierarchy can work by defining some ".subckt", which could 
be in a separate file.  Cat the files, or use .include and 
there's the complete circuit.