Hierarchies (Was: gEDA: Updates to sarlacc_sym and sarlacc_scheme)

[Egil Kvaleberg <egil@kvaleberg.no>]

On Mon, 7 Oct 2002, you wrote:

> gschem does have hierarchical up/down for schematics.
> gnetlist only creates flattened netlists from hierarchical schematics.
> 
> What exactly do you mean by hierarchies?

I think I will first have to understand how hierarchies are intended to
function in gschem.

I didn't get up/down hierarchies to work, and when I started tracing code.
I think I see what is happening: The Down Schematic seems to look for
files in the symbol file directories, just like Down Symbol does.

Is this intentional?

I do not really understand this. I would have though that Down Schematic first
and foremost would look in the same directory as the current schematic,
and probably stay away from the symbol directories. I would very much to
have any files (i.e schematics) connected to a certain project in one
place (using CVS to track versions), which is certainly NOT where I want
the symbol library to reside.

When making sub-sheets, I presume I will have to make a symbol for each
sheet, and then naming it appropriately or use source=. These sub-sheets
and symbols would certainly reside in basically the same directory as the
top sheet.

So additonally, I would like the Down Symbol to look in the directory of the
current page first, then in the standard places. And add-component should
give easy access to the current directory as well as the standard places.

Is there something here I have completely misunderstood? 

Talking about obvious things I have probably overlooked/misunderstood:

        How do you see if snap mode is on?

        How do you access the gschem.txt and other help documents from gschem?

Egil
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