зеркало из https://github.com/mozilla/pjs.git
68 строки
2.1 KiB
Common Lisp
68 строки
2.1 KiB
Common Lisp
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;;; The contents of this file are subject to the Netscape Public License
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;;; Version 1.0 (the "NPL"); you may not use this file except in
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;;; compliance with the NPL. You may obtain a copy of the NPL at
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;;; http://www.mozilla.org/NPL/
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;;;
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;;; Software distributed under the NPL is distributed on an "AS IS" basis,
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;;; WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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;;; for the specific language governing rights and limitations under the
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;;; NPL.
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;;;
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;;; The Initial Developer of this code under the NPL is Netscape
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;;; Communications Corporation. Portions created by Netscape are
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;;; Copyright (C) 1999 Netscape Communications Corporation. All Rights
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;;; Reserved.
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;;;
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;;; Constraint test grammar
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;;;
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;;; Waldemar Horwat (waldemar@netscape.com)
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;;;
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(declaim (optimize (debug 3)))
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(progn
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(defparameter *ctw*
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(generate-world
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"T"
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'((grammar constraint-test-grammar :lr-1 :start)
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(production :start (:string) start-string)
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(production :start ((:- letter digit) :chars) start-escape)
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(production :start ((:- escape) :char) start-letter-digit)
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(production :string (begin :chars end) string)
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(production :chars () chars-none)
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(production :chars (:chars :char) chars-some)
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(production :char (letter (:- letter)) char-letter)
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(production :char (digit) char-digit)
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(production :char (escape digit (:- digit)) char-escape-1)
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(production :char (escape digit digit) char-escape-2)
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)))
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(defparameter *ctg* (world-grammar *ctw* 'constraint-test-grammar)))
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#|
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(depict-rtf-to-local-file
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";Test;ConstraintTestGrammar.rtf"
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"Constraint Test Grammar"
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#'(lambda (markup-stream)
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(depict-world-commands markup-stream *ctw* :visible-semantics nil)))
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(depict-html-to-local-file
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";Test;ConstraintTestGrammar.html"
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"Constraint Test Grammar"
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t
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#'(lambda (markup-stream)
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(depict-world-commands markup-stream *ctw* :visible-semantics nil)))
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(with-local-output (s ";Test;ConstraintTestGrammar.txt") (print-grammar *ctg* s))
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(pprint (parse *ctg* #'identity '(begin letter letter letter digit end)))
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|#
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(length (grammar-states *ctg*))
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