Description: Studies Compilation Principle of a time to write a parser. [Objective request] ① the input grammar, automatically constructed by the procedures set FIRST FOLLOW ② the input grammar, it is automatically generated by the process of LL (1) analysis table ③ For a given input strings, should be able to identify the string to determine whether given the sentence grammar.二. [Title Analysis] The program can be divided into the following steps: (1) read into the grammar (2) The judge is false (3) If correct, determine whether to LL (1) grammar (4) If so, structural analysis table (5) controlled by the general algorithm to determine whether the string of input symbols for the grammar of the sentence.
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