Re: gEDA-user: gschem gnetlist problem

[Colin D Bennett <colin@xxxxxxxxxxx>]

On Wed, 13 Jul 2011 02:20:22 +0200
Kai-Martin Knaak <kmk@xxxxxxxxxxxxxxx> wrote:

> Girvin R. Herr wrote:
> 
> > I keep getting the following:
> > 
> >     536:$gnetlist -g bom xx.sch
> >     Loading schematic
> >     [/home/gherr/projects/vds160/original/hardware/dac/docs/xx.sch]
> >     Backtrace:
> >     In current input:
> >         1: 0* [bom "output.net"]
> >     In /usr/local/share/gEDA/scheme/gnet-bom.scm:
> >        37: 1  (let ((port #) (attriblist #)) (bom:printlist (cons #
> >     attriblist) port) ...)
> >        40: 2* [bom:parseconfig ...
> >        40: 3*  [open-input-file "attribs"]
> >     In unknown file:
> >         ?: 4   [open-file "attribs" "r"]
> > 
> > 
> >     <unnamed port>: In procedure open-file in expression (open-file
> > str OPEN_READ):
> >     <unnamed port>: No such file or directory: "attribs"
> 
> I remember to have been scratching my head on this, when I did my
> first BOMs. My students tend to fall into this trap, too -- Even when
> they were told they'd need an attrib file. The keyword "backtrace"
> suggests a severe crash had happened. I guess, it is a scheme
> one-liner to text for existance of the file and issue a newbie
> friendly message. Or even better, produce a sensible default file on
> the fly. Peter B? John D.? Can you whip up such a line?

How about allowing the user to specify the name of the 'attribs' file
on the gnetlist command line?  Sometimes I would like to produce
BOM listings with different sets of fields (e.g., parts list for
assembly vs. BOM for other purposes).

Regards,
Colin


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