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63 lines
1.7 KiB
Scheme
63 lines
1.7 KiB
Scheme
;;; Guile Emac Lisp
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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 (lang elisp spec)
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:use-module (system lang language)
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:export (elisp))
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;;;
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;;; Translator
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;;;
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(define (translate x)
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(if (pair? x)
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(translate-pair x)
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x))
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(define (translate-pair x)
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(let ((name (car x)) (args (cdr x)))
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(case name
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((quote) `(@quote ,@args))
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((defvar) `(@define ,@(map translate args)))
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((setq) `(@set! ,@(map translate args)))
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((if) `(@if ,(translate (car args))
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(@begin ,@(map translate (cdr args)))))
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((and) `(@and ,@(map translate args)))
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((or) `(@or ,@(map translate args)))
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((progn) `(@begin ,@(map translate args)))
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((defun) `(@define ,(car args)
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(@lambda ,(cadr args) ,@(map translate (cddr args)))))
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((lambda) `(@lambda ,(car args) ,@(map translate (cdr args))))
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(else x))))
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;;;
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;;; Language definition
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;;;
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(define-language elisp
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#:title "Emacs Lisp"
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#:version "0.0"
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#:reader read
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#:expander id
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#:translator translate
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)
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