Compiler
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说明: LL(1)文法和预测分析方法 1.文法使用产生式来定义; 2.分别求出文法中每一个非终结符的FIRST集、FOLLOW集和SELECT集; 3.画出预测分析表; 4.判定给定的文法是否是LL(1)文法; 5.给定符号串判定是否是文法中的句子,分析过程用分析表格的方式打印出来。(LL(1) Grammar and Predictive Analysis 1. Grammar is defined by production. 2. Find out the FIRST set, FOLLOW set and SELECT set of each non-terminator in grammar. 3. Draw a forecast analysis table. 4. Determine whether a given grammar is LL(1) grammar; 5. Given a string of symbols to determine whether it is a sentence in grammar, the analysis process is printed out in the form of an analysis table.)
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