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        Wed, 30 Dec 2015 09:36:49 -0800 (PST)
Date: Wed, 30 Dec 2015 20:36:47 +0300
From: "Vladimir Zhbanov (vzhbanov AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
To: gEDA users mailing list <geda-user AT delorie DOT com>
Subject: Re: [geda-user] Project leadership (design error in the core of
 gschem)
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On Tue, Dec 29, 2015 at 03:04:27PM -0500, Evan Foss (evanfoss AT gmail DOT com) [via geda-user AT delorie DOT com] wrote:
> > You can’t imagine doing this with a specialized tool?
> 
> The order of events to back notate.
> 
> 1. PCB exports a netlist (which I will call the backward netlist)
> 2. diff of forward and backward netlists
> 3. gnetlist generates a list of changes to connections
> 4. gschem takes the changes and lets the user implement or disregard them.
> 
> If that seems amilliar it is because this is mostly what Igor2 did.
> Igor2 had PCB run more of it but still.
> 
> Why run so much through gnetlist? Because you won't let use endow
> libgeda with an understanding of netlists and to map the changes back
> the other way we need that.

I won't comment on this, please see my previous email in the list today.

> 
> >> Right now
> >> gschem almost has this because there is a highlight functionality that
> >> lets you select a whole net and unintentionally maps the connections
> >> in the process.

> > Functionality that gets in the way more often than it helps.
> 
> You are right but the code is there and it works. (Igor2 proved it)

That's fine. You have all means to commit it to the central repo.

...

> > Lisp is having a resurgence with Clojure. Scheme isn’t really that different from other Lisp dialects. We really only use a small subset of it.
> 
> Look at the graphs github generates of language use. I am not
> suggesting we go with what is most popular but there is something to
> be said for not using a language that's largest application was in
> teaching programming.

As you can see, the champion today is JavaScript. Please run:
  guile
  scheme@(guile-user)> ,L ecmascript
  Happy hacking with ECMAScript!  To switch back, type `,L scheme'.

Voila! Voila?? Hurray???

BTW, the tenth place is HTML's. If even it is more popular than
any lisp there, I won't use it to program for geda-gaf. Would you
do this?

> Trying to save gEDA by tying it to scheme is like trying to save a
> lifeboat by tying it to the Titanic.

As you probably already saw, gEDA is not tied to scheme. Far
worse, it's a huge C-Scheme mess nobody wants to clean up to make
things: simpler, better, and more hackable.

> 
> Scheme is there and I am not advocating it's removal. I am just saying
> that Vladimir's plan to replace our already existing C with more
> Scheme is probably not going to help use gain contributors.

I don't want to replace all code. I have no resouces for it
anyway. I want to clean up code and replace C-Scheme mess where it
is appropriate with something more hackable and intelligible. I want
to allow calling of already available C functions from Scheme scripts
for our users. I want to make functionality available in some
programs (such as gnetlist) to be available in other programs
(say, gschem or gaf). If I ever will do something serious on the
core, I'll try to inform (and ask) every people
interested/involved.

Cheers,
  Vladimir