Why do you think Sussman et al's. propagator don't solve OP problem?
I don't think Basa was saying this, exactly.
I think Basa meant using something like Matt Keeter's project:
https://www.mattkeeter.com/projects/ao/
https://www.mattkeeter.com/projects/ao/screencast.html [video]
(which is a f
On 2016-06-12 02:51, Basa Centro wrote:
I myself have contemplated using an implicit modeling backend with
Sussman et al's. propagator concept to do the constraint solving, but
that is a ways off I am afraid.
Why do you think Sussman et al's. propagator don't solve OP problem?
I did think of one project that uses a Lisp (CL) to let you do CAD in an
Emacs REPL, rather than a GUI, which is Gendl:
Demo:
https://www.youtube.com/watch?v=yTcxNaBKTOc
Repo:
https://gitlab.common-lisp.net/gendl/gendl
If you haven't seen it, it uses a declarative syntax to avoid some of
the
Yes, the graph is equivalent to an s-expr (with subgraphs being nested scopes).
The reason that I’m not just representing the graph as a single expression is
for
efficiency – I’m doing incremental updates and change tracking, so you can
update
one of the node's expressions and have the changes pr
Yes, the graph is equivalent to an s-expr (with subgraphs being nested scopes).
The reason that I’m not just representing the graph as a single expression is
for
efficiency – I’m doing incremental updates and change tracking, so you can
update
one of the node's expressions and have the changes p
It seems in essence you are building up a Scheme expression using the
graph and the code snippets and evaluating that expression. If this
is the case, do you even need to use a module system and/or to
explicitly create environments? Prima facie, it looks like you are
trying to reinvent the wheel.
Matthew Keeter writes:
> However, if I make an empty environment with (null-environment), it
> doesn’t have useful functions like + and *; looks like (make-module)
> has the same issue.
Adding the (guile) module to the environment is going to provide a sane
base environment.
Let's implement som
> On Friday, June 10, 2016 3:31 PM, Matthew Keeter
> wrote:
> > The specific use case is for dataflow graphs, where you’re evaluating a
> > bunch of
> small
> snippets of code that can refer to each other by name.
>
> I’d like to make an environment in which the variables in the same subg
On Fri, 10 Jun 2016 14:44:43 -0400
Matthew Keeter wrote:
> Thanks for the reply!
>
> You’ll be sad to hear that I’ve solved the problem by switching to
> Racket – (make-base-namespace) creates the kind of temporary
> environment I needed, and multiple calls produce multiple independent
> namespac
The specific use case is for dataflow graphs, where you’re evaluating a bunch
of small
snippets of code that can refer to each other by name.
I’d like to make an environment in which the variables in the same subgraph are
exposed as no-argument thunks.
For example, let’s say I have one subgraph
> First of all: is the "sandboxing" aspect of these environment important?
Taylan,
Thanks, that's exactly what I meant by "motivation" in my first reply.
(There was a recent, 6 months ago or so, thread on sandboxing in
guile-user by the way.)
Was Matt trying to prevent _access_ (inaccessible vs.
Basa Centro writes:
> Matt and List,
>
> As a matter of fact, I've been thinking about defecting to MIT/GNU
> Scheme if I don't get better support for scmutils and C++ FFI. :)
>
> Come on now Guilers, we can't have people defecting to Racket.
>
> Is there equivalent functionality in Guile to Rack
Matt and List,
As a matter of fact, I've been thinking about defecting to MIT/GNU
Scheme if I don't get better support for scmutils and C++ FFI. :)
Come on now Guilers, we can't have people defecting to Racket.
Is there equivalent functionality in Guile to Racket's
make-base-namespace, as Matt n
Thanks for the reply!
You’ll be sad to hear that I’ve solved the problem by switching to Racket –
(make-base-namespace) creates the kind of temporary environment I needed,
and multiple calls produce multiple independent namespaces.
-Matt
On Jun 10, 2016, at 2:18 PM, Basa Centro wrote:
> Hi Mat
Hi Matthew,
[I know this reply is a little delayed. Please let us know how you
did it if you have already solved the problem.]
Are you using eval-string?
https://www.gnu.org/software/guile/manual/html_node/Fly-Evaluation.html#Fly-Evaluation
It might help for you to post a minimal code sample o
I’m trying to generate a temporary, transient environment that a useful set of
functions in it.
The use case is eval’ing a set of small code strings. Each environment needs
to be
independent, so previous eval’s don’t leave anything in the environment.
I can make a dummy environment with (null-
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