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-rw-r--r--community/gsoc/project_ideas/language_bindings.mdwn45
1 files changed, 3 insertions, 42 deletions
diff --git a/community/gsoc/project_ideas/language_bindings.mdwn b/community/gsoc/project_ideas/language_bindings.mdwn
index a96f4569..3376754c 100644
--- a/community/gsoc/project_ideas/language_bindings.mdwn
+++ b/community/gsoc/project_ideas/language_bindings.mdwn
@@ -36,7 +36,9 @@ the features available in the respective language.
These more specialised bindings could hook in at some of the lower level
library interfaces ([[hurd/libports]], [[hurd/glibc]], etc.); use the
[[microkernel/mach/MIG]]-provided [[microkernel/mach/RPC]] stubs directly; or
-even create native stubs directly from the interface definitions.
+even create native stubs directly from the interface definitions. The
+[[lisp_bindings_created_by_Flavio_Cruz|flaviocruz]] in last year's GSoC mostly
+use the latter approach, and can serve as a good example.
The task is to create easy to use Hurd bindings for a language of the student's
choice, and some example servers to prove that it works well in practice. This
@@ -47,44 +49,3 @@ There has already been some [earlier work on Python
bindings](http://www.sigill.org/files/pytrivfs-20060724-ro-test1.tar.bz2), that
perhaps can be re-used. Also some work on [Perl
bindings](http://www.nongnu.org/hurdextras/#pith) is availabled.
-
-# Lisp
-
-Most Lisp implementations provide a Foreign Function Interface (FFI) that
-enables the Lisp code to call functions written in another language.
-Specifically, most implementations provide an FFI to the C ABI (hence giving
-access to C, Fortran and possibly C++).
-
-Common Lisp has even a portability layer for such FFI,
-[CFFI](http://common-lisp.net/project/cffi/), so that you can write bindings
-purely in Lisp and use the same binding code on any implementation supported by
-CFFI.
-
-Many Scheme implementation also provide an FFI. [Scheme48](http://www.s48.org/)
-is even the implementation used to run scsh, a Scheme shell designed to provide
-instant access to POSIX functions.
-[Guile](http://www.gnu.org/software/guile/guile.html) is the GNU project's
-Scheme implementation, meant to be embeddable and provide access to C. At least
-[Gambit](http://dynamo.iro.umontreal.ca/~gambit/),
-[Chicken](http://www.call-with-current-continuation.org/),
-[Bigloo](http://www-sop.inria.fr/mimosa/fp/Bigloo/) and
-[PLT](http://www.plt-scheme.org/) are known to provide an FFI too.
-
-With respect to the packaging and dependencies, the good news is that Debian
-comes handy: 5 Common Lisp implementations are packaged, one of which has
-already been ported to Hurd (ECL), and CFFI is also packaged. As far as Scheme
-is concerned, 14 [R5RS](http://www.schemers.org/Documents/Standards/R5RS/)
-implementations are provided and 1 [R6RS](http://www.r6rs.org/).
-
-Possible mentors: Pierre THIERRY (nowhere_man) for Common Lisp or Scheme, and perhaps Python
-
-Exercise: Write some simple program(s) using Hurd-specific interfaces in the
-language you intend to work on. For a start, you could try printing the system
-uptime. A more advanced task is writing a simple variant of the hello
-translator (you can use the existing C imlementation as reference),
-implementing only open() and read() calls. Don't only write an implementations
-using the existing C libraries (libps, libtrivfs), but also try to work with
-the MiG-generated stubs directly. If you are ambitious, you could even try to
-write your own stubs...
-
-*Status*: Flavio Cruz has completed [[Lisp_bindings|flaviocruz]] for GSoC 2008!