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+;;; Guile R5RS
+
+;; Copyright (C) 2001 Free Software Foundation, Inc.
+
+;; This program 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 2, or (at your option)
+;; any later version.
+;; 
+;; This program 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 this program; see the file COPYING.  If not, write to
+;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+;; Boston, MA 02111-1307, USA.
+
+;;; Code:
+
+(define-module (language r5rs spec)
+  :use-module (system base language)
+  :use-module (language r5rs expand)
+  :use-module (language r5rs translate)
+  :export (r5rs))
+
+
+;;;
+;;; Translator
+;;;
+
+(define (translate x) (if (pair? x) (translate-pair x) x))
+
+(define (translate-pair x)
+  (let ((head (car x)) (rest (cdr x)))
+    (case head
+      ((quote) (cons '@quote rest))
+      ((define set! if and or begin)
+       (cons (symbol-append '@ head) (map translate rest)))
+      ((let let* letrec)
+       (cons* (symbol-append '@ head)
+	      (map (lambda (b) (cons (car b) (map translate (cdr b))))
+		   (car rest))
+	      (map translate (cdr rest))))
+      ((lambda)
+       (cons* '@lambda (car rest) (map translate (cdr rest))))
+      (else
+       (cons (translate head) (map translate rest))))))
+
+
+;;;
+;;; Language definition
+;;;
+
+(define-language r5rs
+  :title	"Standard Scheme (R5RS + syntax-case)"
+  :version	"0.3"
+  :reader	read
+  :expander	expand
+  :translator	translate
+  :printer	write
+;;  :environment	(global-ref 'Language::R5RS::core)
+  )