Re: gEDA-user: Hierarchy viewer and database proposal

[sdb@cloud9.net (Stuart Brorson)]

> A few months ago I thought geda lacks of a good DRC checker, to check
> things like the ones you mention.
> Then, I wrote a DRC gnetlist backend, which is now included in gnetlist
> distribution as gnet-drc2.scm .
> I think it's quite complete, so maybe you want to have a look at it
> before writing another one. There's always room for improvement.

Carlos,

Prompted by your posting, I went and looked at drc2.  I have been
thinking about DRC checking for a while, and wanted something to check
the parameters you check.  Your prog is excellent work!  It found a
funky issue with one of my schematics (doubly named net) which I
had overlooked.

One question:  When I ran it, it complained
vociferously about parts lacking the slot attribute.  None of my parts
are multislotted; most of them are simple surface-mount passives.
Therefore, I don't need this check.  

I read the comments in the scheme
file about how to enable/disable various checks.  I am a little
confused about how to do this, except to stick a 
(define action-unused-slots \#c) somewhere in the scheme prog.  I
tried to put this define into the gnetlistrc file, but that didn't
work.

(Ales, as a parenthetic comment, I tried netlisting with the -r flag
set, as described on the man page, but that barfed, saying "invalid
option -- r".  If this is a known bug, please excuse my raising the
issue.  If it is not known, then perhaps I will fix it . . . .)

Therefore, my question is:  where does the define go?  Are you
assuming that we run gnetlist in interactive mode?

A suggestion: if the "define" could live in the gnetlistrc file, that
would be a fine thing.  You could also enable/disable various checks
using the command-line flag passing facility I put into gnetlist.scm
if you wanted, although I think that this would be cumbersome because
there are so many possible checks. . . .

Thanks for your help,

Stuart