Description: The design of a lexical scanner. Function of lexical scanner is an input source, the output word symbols. Keywords set to write and program flow chart. For example, for the C language source code. Enter the following: main () (int a, b a = 10 b = a+ 20 ) output in Figure: (2, " main" ) (5 ," (" ) (5 ," )" ) ( 5 ," {" ) (1, " int" ) (2, " a" ) (5 ," ," ) (2, " b" ) (5 ," " ) (2, " a" ) (4 ," =" ) (3, " 10" ) (5 ," " ) (2, " b" ) (4 ," =" ) (2, " a" ) (4 ,"+" ) (3, " 20" ) (5 ," " ) (5, " )" )
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bianyiyuanlichifadaima.txt
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