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Re: Namespaces for HB-Guile modules? Help. :(
From: |
Rob Browning |
Subject: |
Re: Namespaces for HB-Guile modules? Help. :( |
Date: |
Thu, 15 Nov 2001 21:12:54 -0600 |
User-agent: |
Gnus/5.090004 (Oort Gnus v0.04) Emacs/21.1 |
Alejandro Forero Cuervo <address@hidden> writes:
> However, it seems that (1) modules need to be on specific locations
> designated from them (rather than wherever the users can place them,
> usually in the public HTML tree) and (2) the programmer has to fill
> their Guile file for a module with lots of special calls to the effect
> of defining a new module.
What you may want is guile's new "safe modules". From the unstable
1.5 NEWS file:
** It's now possible to create modules with controlled environments
Example:
(use-modules (ice-9 safe))
(define m (make-safe-module))
;;; m will now be a module containing only a safe subset of R5RS
(eval '(+ 1 2) m) --> 3
(eval 'load m) --> ERROR: Unbound variable: load
You could then pull in whatever other system modules you wanted a user
to have access to:
(eval '(use-modules (foo bar)) m)
(eval '(load "some-code") m)
etc. Note that I haven't tried this, so you may not be able to do
exactly what I've shown, and off the top of my head, I don't know
whether or not there's a sanctioned scheme level command to push
bindings into the new module -- i.e. something like:
(module-define! m 'foo foo)
--
Rob Browning
rlb @defaultvalue.org, @linuxdevel.com, and @debian.org
Previously @cs.utexas.edu
GPG=1C58 8B2C FB5E 3F64 EA5C 64AE 78FE E5FE F0CB A0AD
- New to Guile/Scheme, Andrew McDowell, 2001/11/14
- Re: Namespaces for HB-Guile modules? Help. :(, Neil Jerram, 2001/11/16
- Re: Namespaces for HB-Guile modules? Help. :(, David Pirotte, 2001/11/16
- Re: Namespaces for HB-Guile modules? Help. :(, Neil Jerram, 2001/11/16
- Re: Namespaces for HB-Guile modules? Help. :(, MJ Ray, 2001/11/16
Re: New to Guile/Scheme, MJ Ray, 2001/11/14