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64 lines
1.8 KiB
Scheme
64 lines
1.8 KiB
Scheme
;;; Guile R5RS
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;; Copyright (C) 2001 Free Software Foundation, Inc.
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;; This program is free software; you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation; either version 2, or (at your option)
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;; any later version.
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;;
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU General Public License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with this program; see the file COPYING. If not, write to
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;; the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;;; Code:
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(define-module (language r5rs spec)
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:use-module (system base language)
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:use-module (language r5rs expand)
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:use-module (language r5rs translate)
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:export (r5rs))
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;;;
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;;; Translator
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;;;
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(define (translate x) (if (pair? x) (translate-pair x) x))
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(define (translate-pair x)
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(let ((head (car x)) (rest (cdr x)))
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(case head
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((quote) (cons '@quote rest))
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((define set! if and or begin)
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(cons (symbol-append '@ head) (map translate rest)))
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((let let* letrec)
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(cons* (symbol-append '@ head)
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(map (lambda (b) (cons (car b) (map translate (cdr b))))
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(car rest))
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(map translate (cdr rest))))
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((lambda)
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(cons* '@lambda (car rest) (map translate (cdr rest))))
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(else
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(cons (translate head) (map translate rest))))))
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;;;
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;;; Language definition
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;;;
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(define-language r5rs
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:title "Standard Scheme (R5RS + syntax-case)"
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:version "0.3"
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:reader read
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:expander expand
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:translator translate
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:printer write
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;; :environment (global-ref 'Language::R5RS::core)
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)
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