loom

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/* Пример грамматики LALR(1)
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https://stackoverflow.com/questions/6480634/examples-of-ll1-lr1-lr0-lalr1-grammars
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A -> C x A | ε
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B -> x C y | x C
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C -> x B x | z
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*/
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A = C "x" A | C "x";
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B = "x" C "y" | "x" C;
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C = "x" B "x" | "z";
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