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Date:	Thu, 21 Jan 2016 16:21:47 +0300
Message-ID:	<CAMvDHVCi5wR78jybhOEG0EmKyqWVpeaoYFuyWkWSrtkxF7kXQw@mail.gmail.com>
Subject:	Re: [geda-user] should we broaden scope of libgeda
From:	"Vladimir Zhbanov (vzhbanov AT gmail DOT com) [via geda-user AT delorie DOT com]" <geda-user AT delorie DOT com>
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Karl,

On 1/2/16, karl AT aspodata DOT se <karl AT aspodata DOT se> wrote:
...
> So currently, if I want to write an "get all syms that this sch file
> referencs"-program I have to do it in c or don't use libgeda at all.
>
> I thought that kind of program could be a nice way to learn a
> little scheme, but the infrastructure wasn't there.

You were wrong ;)

The attached script will do just what you want.

You can extend it, if you want, say, by adding menu entry for it, or
probably add a hook to run it automatically at exit, or make the cache
dir name configurable and so on.

Installation:
  - place the file into your ~/.gEDA;
  - add somewhere in your ~/.gEDA/gschemrc the line:
    (load "cache-symbols.scm")

Usage:
  - make the "sym" directory in the current directory
  - open gschem
  - hit ":" to open command line
  - type (cache-symbols)
  - hit Enter

That's all.

I believe the script will work as well using 'gaf shell' if anybody
want to run it from Makefile. Didn't check though.

Obviously, the script mistakenly assumes that the cache dir already
exist. Fixing this would be a little exercise for the user. Hint: you
may probably want to look through the section "File System" of the
chapter "POSIX" in the guile manual.

If anybody want to do the same things in C, please do, it is doable,
and we'll compare results ;)

Cheers,
  Vladimir

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