Re: r6rs libraries

[Ludovic Courtès]

Hi Julian,

Julian Graham <address@hidden> writes:

> * I'm pleased to report that both the balloons example and the
> quotient+remainder macro example are working, which I'm going to take
> as more or less a vindication of the module environment-based implicit
> phasing approach I've been using.  (I didn't quite trust it at first,
> but it turns out that when you call `syncase' in the right context, it
> does exactly what you want it to, even when it comes to modules!)

Good news!

> * The on-disk directory organization I've been using for the interim
> (and around which I've written a rudimentary library load mechanism)
> prefixes version numbers with periods.  E.g., `(foo bar baz (6))' ->
> foo/bar/.6/baz.scm.

But dot files are traditionally "hidden" on Unices.  Why not go with
`foo/bar/6/baz.scm'?

> (foo bar baz (6))
>
> ...would be live in
>
> $GUILE_LOAD_PATH/ice-9/r6rs-libraries/foo/bar/baz-6.scm
>
> ...and could be imported using either `(import (foo bar baz (6))' or
> `(use-modules (ice-9 r6rs-libraries foo bar baz-6))'.  What do people
> think?  (Of course, this still leaves open the question of how to
> handle version-matching...)

The `r6rs-libraries' part of the module name is just a matter of load
path.  The important thing here is that both `import' and `use-modules'
do the right thing.  Then I would not force R6RS module writers to store
them under `ice-9/r6rs-libraries' as this is inconvenient and doesn't
provide any advantage (AFAICS).

Thanks!

Ludo'.