1 ;;; Multi-language support
3 ;; Copyright (C) 2001 Free Software Foundation, Inc.
5 ;; This program is free software; you can redistribute it and/or modify
6 ;; it under the terms of the GNU General Public License as published by
7 ;; the Free Software Foundation; either version 2, or (at your option)
10 ;; This program is distributed in the hope that it will be useful,
11 ;; but WITHOUT ANY WARRANTY; without even the implied warranty of
12 ;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 ;; GNU General Public License for more details.
15 ;; You should have received a copy of the GNU General Public License
16 ;; along with this program; see the file COPYING. If not, write to
17 ;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 ;; Boston, MA 02111-1307, USA.
22 (define-module (system base language)
23 :use-syntax (system base syntax)
24 :export (define-language lookup-language))
31 (define-record (<language> name title version reader printer read-file
32 (expander (lambda (x e) x))
33 (translator (lambda (x e) x))
38 (define-macro (define-language name . spec)
39 `(define ,name (,<language> :name ',name ,@spec)))
41 (define (lookup-language name)
42 (let ((m (resolve-module `(language ,name spec))))
43 (if (module-bound? m name)
45 (error "No such language:" name))))