Comments (3)
ddayzzz
commented on August 22, 2024
如果出现了左递归的情况. 如 A->A+T 的情况, 就会溢出。 建议加上求 FIRST 顺序的代码。
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Tachone
commented on August 22, 2024
@ddayzzz 学生时代写的啦， 欢迎提PR
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ddayzzz
commented on August 22, 2024
@ddayzzz 学生时代写的啦， 欢迎提PR
哈哈。最近想了想。如果能够先把产生式右部的第一个符号就是终结符就可以先求出。这可能需要一个类似于拓扑排序的顺序来求各个非终结符的 FIRST. 看看能不能写一个 PR。 :)
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