Hello Ricardo, > > https://reposcope.com/man/en/3guile/gv
> Yes, graphviz comes with Guile bindings. Since they don’t provide a
> Guile module you need to define a module like this:
> --8<---------------cut here---------------start------------->8---
> (define-module (libgv)
> #:export (digraph node edge layout render setv))
>
> (load-extension "libgv_guile" "SWIG_init")
> --8<---------------cut here---------------end--------------->8---
Right, but the module I was looking at - but did not try - exports quite
a lot more functionality ...
https://github.com/roelj/graphviz-guile/blob/master/graphviz.scm
David
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