зеркало из https://github.com/mozilla/gecko-dev.git
66 строки
1.9 KiB
Common Lisp
66 строки
1.9 KiB
Common Lisp
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(progn
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(defparameter *waw*
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(generate-world
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"WA"
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'((lexer writable-action-lexer
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:lalr-1
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:main
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((:digit (#\0 #\1 #\2 #\3 #\4 #\5 #\6 #\7 #\8 #\9)
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((value $digit-value))))
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(($digit-value integer digit-value digit-char-36)))
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(%charclass :digit)
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(deftype semantic-exception integer)
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(defvar g integer 0)
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(rule :expr ((serial-num (writable-cell integer)) (walk (-> () void)) (value (-> () (vector integer))))
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(production :expr (:digit) expr-digit
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((walk)
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(<- g (+ g 1))
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(action<- (serial-num :expr 0) g))
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((value)
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(return (vector (+ (* 10 (serial-num :expr 0)) (value :digit))))))
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(production :expr (:digit :expr) expr-more
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((walk)
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((walk :expr))
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(<- g (+ g 1))
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(action<- (serial-num :expr 0) g))
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((value)
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(const i integer (+ (* 10 (serial-num :expr 0)) (value :digit)))
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(return (append (vector i) ((value :expr)))))))
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(rule :main ((value (vector integer)))
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(production :main (:expr) main-expr
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(value (begin
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((walk :expr))
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(return ((value :expr)))))))
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(%print-actions)
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)))
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(defparameter *wal* (world-lexer *waw* 'writable-action-lexer))
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(defparameter *wag* (lexer-grammar *wal*)))
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#|
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(depict-rtf-to-local-file
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"Test/WritableActionSemantics.rtf"
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"Writable Action Semantics"
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#'(lambda (rtf-stream)
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(depict-world-commands rtf-stream *waw*)))
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(depict-html-to-local-file
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"Test/WritableActionSemantics.html"
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"Writable Action Semantics"
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t
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#'(lambda (html-stream)
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(depict-world-commands html-stream *waw*))
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:external-link-base "")
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(lexer-pparse *wal* "7")
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(lexer-pparse *wal* "7500")
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|#
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(length (grammar-states *wag*))
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