Lexical analyzer function: Input: a grammar of the source string. Output: tuple (syn, token or sum) consisting of sequences. Where: syn is another code word kind token string for storing word itself sum to an integer constant. For example: the source program begin x: = 9: if x> 9 then x: = 2* x+1/3 end# of the source file after the lexical analysis following output sequence: (1, begin) (10, x) ( 18,: =) (11,9) (26, ) (2, if)

编译原理词法分析和语法分析报告+代码(C语言版)[1] - 副本.doc

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