precedence grammar是什么意思 precedence grammar怎么读
precedence grammar的用法和样例
- The new grammar is unambiguous and an efficient parsing algorithm is also given.
不包含单项产生式的运算符优先文法也是它的真子文法。 - Therefore the class of generalized precedence grammar is a superclass of the weak precedence grammar.
弱优先文法和弱运算符优先文法都是它的真子文法。
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