зеркало из https://github.com/mozilla/gecko-dev.git
67 строки
2.1 KiB
Common Lisp
67 строки
2.1 KiB
Common Lisp
;;; The contents of this file are subject to the Mozilla Public
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;;; License Version 1.1 (the "License"); you may not use this file
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;;; except in compliance with the License. You may obtain a copy of
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;;; the License at http://www.mozilla.org/MPL/
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;;;
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;;; Software distributed under the License is distributed on an "AS
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;;; IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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;;; implied. See the License for the specific language governing
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;;; rights and limitations under the 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 Netscape Communications
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;;; Corporation. Portions created by Netscape Communications Corporation are
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;;; Copyright (C) 1999 Netscape Communications Corporation. All
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;;; Rights Reserved.
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;;;
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;;; Contributor(s): Waldemar Horwat <waldemar@acm.org>
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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* :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* :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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