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@katoy(Youichi Kato)

文法定義を図示する方法

Posted at

ABNF, ANTLR 3, Bison, GOLD, JavaCC, Jison, PEG.js で定義した文法を図示するには次の web ページを利用すると良い。
　　http://bottlecaps.de/convert/

利用例：

javascript で四則演算数式を評価する例
で使った peg.js での計算式の文法定義
　　http://homepage2.nifty.com/youichi_kato/src/pegjs/expression/arithmetics.pegjs

を図示したもの
　　http://homepage2.nifty.com/youichi_kato/src/pegjs/expression/ebnf/aritmetics/index.html

参考：

Visualize LALR grammar

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