> To fix it in a uniform way I think we need to standardise what we
> use as a place holder for an attribute. Sould we explicitly put
> "unknown" or "?"? Unfortunitly gschem won't let you put a null string.
Hi Clif,
Since at the moment gnetlist internally uses the string "unknown" to indicate a
missing attribute, so that would be the logical choice to use instead of "?" at
this time.
In the longer term, I would actually quite like it to be legal to have
attributes with zero-length values. However, that would obviously be a more
complicated patch.
I think that the spice-sdb backend should continue to choke on "blah=?"
attributes, for now.
Regards,
Peter
--
Peter Brett <pe...@peter-b.co.uk>
Remote Sensing Research Group
Surrey Space Centre
----- Original message -----
> Hi Gang,
>
> This is about a patch I submitted a while back because myself and others
> didn't understand the souce of the "?". Patrick found it though. They
> are from the spice A.. blocks. The value of some of the unpromoted
> attributes are "?". Apparently they are place holders to remind someone
> to add real values in the same way R? is a place holder for a refdes.
>
>
> The other choice is to not list attributes without useable values, but
> then you don't have the reminder of which ones to fill in. This gets
> used like a short version of the add attribute drop down menu, however
> you have to click on "show inherited attributes" to see them. Though
> most people don't do that and then wonder where the errors come from.
> ;-)
>
> If neither of those choices sound good then I have an off the wall one.
> We could allow null value attributes which are always promoted so you
> would see them, and this would be a poor mans form in which you have
> the option of providing their values, or even deleting them.
> Get-package-attribute would return "unknown" for attributes which exist
> but have null values.
>
> Any thoughts?
>
> Clif
>
>
>
>
>
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