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        Mon, 11 Apr 2016 01:45:08 -0700 (PDT)
Date: Mon, 11 Apr 2016 10:45:04 +0200
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] gschem attribute list, value list
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> > Ack.
> > The symbols of my gschem libraries include an attribute "footprints"
> > with a comma separated list of suggested footprints. Similarly, 
> > they may contain an attribute "values" with a list of preferred 
> > values. The GUI could present these list attributes as a drop-down 
> > list for the user to choose from.
> >
> > See
> > http://www.gedasymbols.org/user/kaimartin_knaak/essential/essential.html
> > section "List attributes"
> >
> Does it actually work in a compatible manner to list alternate
> footprints and propagate through gsch2pcb and PCB ? I've long tried to
> find a way to do this that works, but nearest I've come to, is create
> footprint2, footprint3 attributes to avoid conflict? If there was a
> better way, I'd like to know!

The comma separated list should propagate fine through gsch2pcb and PCB although as I discovered earlier parantheses caused import schematic to crash but this considered a bug.

The comma separated will be used only for a list of values to chose from and the chosen value is copied to the ordinary attribute.

Basically an extra attribute with an "s" at the end for, footprint, value or whatever ordinary attribute name is used to store a list of possible values. It should be rather straightforward to implement whenever there is enough time. It will work great until someone invent something better if at all.


Nicklas Karlsson