;;; Guix --- Nix package management from Guile.         -*- coding: utf-8 -*-
;;; Copyright (C) 2012 Ludovic Courtès <ludo@gnu.org>
;;;
;;; This file is part of Guix.
;;;
;;; Guix is free software; you can redistribute it and/or modify it
;;; under the terms of the GNU General Public License as published by
;;; the Free Software Foundation; either version 3 of the License, or (at
;;; your option) any later version.
;;;
;;; Guix is distributed in the hope that it will be useful, but
;;; WITHOUT ANY WARRANTY; without even the implied warranty of
;;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
;;; GNU General Public License for more details.
;;;
;;; You should have received a copy of the GNU General Public License
;;; along with Guix.  If not, see <http://www.gnu.org/licenses/>.

(define-module (distro packages guile)
  #:use-module (distro packages base)
  #:use-module (guix packages)
  #:use-module (guix http)
  #:use-module (guix utils)
  #:use-module (guix build-system gnu))

;;; Commentary:
;;;
;;; Modules and extensions for GNU Guile.
;;;
;;; Code:

(define (guile-reader guile)
  "Build Guile-Reader against GUILE, a package of some version of Guile 1.8
or 2.0."
  (package
   (name (string-append "guile-reader-for-guile-" (package-version guile)))
   (version "0.6")
   (source  (origin
             (method http-fetch)
             (uri (string-append
                   "http://download-mirror.savannah.gnu.org/releases/guile-reader/guile-reader-"
                   version ".tar.gz"))
             (sha256
              (base32
               "1svlyk5pm4fsdp2g7n6qffdl6fdggxnlicj0jn9s4lxd63gzxy1n"))))
   (build-system gnu-build-system)
   (native-inputs `(("pkgconfig" ,pkg-config)
                    ("gperf" ,(nixpkgs-derivation "gperf"))))
   (inputs `(("guile" ,guile)))
   (description "Guile-Reader, a simple framework for building readers for
GNU Guile")
   (long-description
"Guile-Reader is a simple framework for building readers for GNU Guile.

The idea is to make it easy to build procedures that extend Guile’s read
procedure. Readers supporting various syntax variants can easily be written,
possibly by re-using existing “token readers” of a standard Scheme
readers. For example, it is used to implement Skribilo’s R5RS-derived
document syntax.

Guile-Reader’s approach is similar to Common Lisp’s “read table”, but
hopefully more powerful and flexible (for instance, one may instantiate as
many readers as needed).")
   (home-page "http://www.nongnu.org/guile-reader/")
   (license "GPLv3+")))

(define-public guile-reader/guile-1.8
  ;; Guile-Reader built against Guile 1.8.
  (guile-reader guile-1.8))

(define-public guile-reader/guile-2.0
  ;; Guile-Reader built against Guile 2.0.
  (guile-reader guile-2.0))

;;; guile.scm ends here
