trees grammar翻译

trees grammar的基本解释

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树状文法

例句

RELAX ng is the main example of such languages qualified of "grammar based" since they describe documents in the manner of a BNF adapted to describing XML trees.RELAX NG是这样的“基于语法的”语言中的主要代表,因为它们以适合描述xml树的BNF的方法描述文档。
A sentence of a grammar is ambiguous if there exists two syntax trees for it.如果一文法的句子存在两个语法树,那么该句子是二义性的。
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