Re: gEDA-dev: Really Unique component identifiers

[Bernd Jendrissek <berndj@xxxxxxxxxxx>]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1

On Fri, Jun 08, 2007 at 11:36:47AM +0100, Peter Clifton wrote:
> I believe there is already a name / number attached to each object. I'm
> not sure if you want a unique ID across all time, for all schematics or
> not, but that would require a large ID to make that likely.
> 
> Take a look at http://www.brorson.com/gEDA/gEDA_Structures_20050108.pdf
> 
> And how the object.name fields are produced, they "might" be what you
> want.

Ah, thanks for the link.  Yes I noticed those while I was debugging, but
I really need something more permanent - or at least more guaranteed.  I
need these two properties:
 - The ID must be unique over the whole design - perhaps over the
   universe.  object.name is probably close enough here.
 - The ID must be permanent - must survive edits to the schematic.
   object.name fails here; it's assigned at runtime, not read in from
   the file.

I'm going to need this COMPLEX "permalink" to be able to record which
"symbolic" op-amp COMPLEX fits into which concrete op-amp package, so
that you can have one *symbol* representing all the zillions of op-amp
parts.  And I will need to save these links into the file, hence the
need for permanence.  (Must survive hand-editing of schematics too.)

- -- 
/"\  ASCII Ribbon Campaign - against html email
\ /                        - against microsoft office attachments
 X                         - against text above fullquote below
/ \                        - against lines longer than 79 characters
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.6 (GNU/Linux)

iD8DBQFGaZDpwyMv24BBd/gRAguEAJ9vy0fk0c92W3bYqvzso2+b6eIdMwCggpZ/
0R9p3h1B7N0f8hxn7WDlO9I=
=xs4n
-----END PGP SIGNATURE-----


_______________________________________________
geda-dev mailing list
geda-dev@xxxxxxxxxxxxxx
http://www.seul.org/cgi-bin/mailman/listinfo/geda-dev