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85 строки
3.0 KiB
Common Lisp
85 строки
3.0 KiB
Common Lisp
;;; ***** BEGIN LICENSE BLOCK *****
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;;; Version: MPL 1.1/GPL 2.0/LGPL 2.1
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;;;
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;;; The contents of this file are subject to the Mozilla Public License Version
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;;; 1.1 (the "License"); you may not use this file except in compliance with
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;;; the License. You may obtain a copy of the License at
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;;; http://www.mozilla.org/MPL/
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;;;
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;;; Software distributed under the License is distributed on an "AS IS" basis,
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;;; WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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;;; for the specific language governing rights and limitations under the
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;;; License.
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;;;
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;;; The Original Code is the Language Design and Prototyping Environment.
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;;;
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;;; The Initial Developer of the Original Code is
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;;; Netscape Communications Corporation.
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;;; Portions created by the Initial Developer are Copyright (C) 1999-2002
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;;; the Initial Developer. All Rights Reserved.
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;;;
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;;; Contributor(s):
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;;; Waldemar Horwat <waldemar@acm.org>
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;;;
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;;; Alternatively, the contents of this file may be used under the terms of
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;;; either the GNU General Public License Version 2 or later (the "GPL"), or
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;;; the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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;;; in which case the provisions of the GPL or the LGPL are applicable instead
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;;; of those above. If you wish to allow use of your version of this file only
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;;; under the terms of either the GPL or the LGPL, and not to allow others to
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;;; use your version of this file under the terms of the MPL, indicate your
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;;; decision by deleting the provisions above and replace them with the notice
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;;; and other provisions required by the GPL or the LGPL. If you do not delete
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;;; the provisions above, a recipient may use your version of this file under
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;;; the terms of any one of the MPL, the GPL or the LGPL.
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;;;
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;;; ***** END LICENSE BLOCK *****
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;;;
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;;; Canonical LR(1) test grammar
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;;;
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;;; Waldemar Horwat (waldemar@acm.org)
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;;;
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(declaim (optimize (debug 3)))
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(progn
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(defparameter *clrtw*
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(generate-world
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"T"
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'((grammar canonical-lr-test-grammar :canonical-lr-1 :start)
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(production :start (:expr) start-expr)
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(production :start (:expr !) start-expr-!)
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(production :expr (id) expr-id)
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(production :expr (:expr + id) expr-plus)
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(production :expr (:expr - id (:- -)) expr-minus)
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(production :expr (\( :expr \)) expr-parens)
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)))
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(defparameter *clrtg* (world-grammar *clrtw* 'canonical-lr-test-grammar)))
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#|
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(depict-rtf-to-local-file
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"Test/CanonicalLRTestGrammar.rtf"
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"Canonical LR(1) Test Grammar"
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#'(lambda (markup-stream)
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(depict-world-commands markup-stream *clrtw* :heading-offset 1 :visible-semantics nil)))
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(depict-html-to-local-file
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"Test/CanonicalLRTestGrammar.html"
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"Canonical LR(1) Test Grammar"
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t
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#'(lambda (markup-stream)
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(depict-world-commands markup-stream *clrtw* :heading-offset 1 :visible-semantics nil)))
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(print-grammar *clrtg*)
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(with-local-output (s "Test/CanonicalLRTestGrammar.txt") (print-grammar *clrtg* s))
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(pprint (parse *clrtg* #'identity '(begin letter letter letter digit end)))
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|#
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(length (grammar-states *clrtg*))
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