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From:	"Kovacs Levente (leventelist AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
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Subject:	Re: [geda-user] (features: layers stack, padstack/vias)
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On Fri, 8 Jan 2016 20:15:24 -0900
"Britton Kerin (britton DOT kerin AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda=
-user AT delorie DOT com> wrote:

> The way to think about YAML/JSON is as portable text-based
> serialization formats for the couple most popular datatypes that get
> built into modern languages, in particular arrays, hashes, and scalar
> values (basically numbers and strings).  JSON doesn't support native
> (non-tree) references so you have to add your own id field if what
> you want to refer to doesn't have already have a unique name.  YAML
> does.  JSON is much more common but unfortunately also more noisy.
> Some people like the noise because they don't trust any
> whitespace-based approach (bad experiences with make).

Ok. I try to express my data model in YAML. The only problem is that I don't
have any experience in YAML, but hopefully I catch up some in the weekend.

Then we might write a library that is able to read write gpcb object to/from
either YAML or SQL. It might be double work, but we can make performance te=
sts
at the end.

So could we first think about an API? So we might work together parallel. F=
or
example, you implement the API in current pcb, and I write the file handler?

I think the first step would be to implement the current capability of pcb,
and later, when the infrastructure is there, we can fiddle with the GUI and
other logic.

Another idea came in my mind to separate the exporter HIDs from the main pc=
b.
For example, the gerber exporter would be a separate piece of program (using
shared libraries).

Lev


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