文件名称:bianyi
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用C语言采用模拟DFA算法编写一个扫描器(词法分析器)用来识别:
由任意个a或b开始后接aa再自加或自减1的字符串,即正规式r=(a|b)*aa(+|-)1描述的语言L(r)。
-Simulated DFA algorithm in C language to write a scanner (lexical analyzer) is used to identify: followed by any one of a or b aa longer self plus or decrement a string, the regular expression r = (a | b )* aa (+ |-) 1 described in the language L (r).
由任意个a或b开始后接aa再自加或自减1的字符串,即正规式r=(a|b)*aa(+|-)1描述的语言L(r)。
-Simulated DFA algorithm in C language to write a scanner (lexical analyzer) is used to identify: followed by any one of a or b aa longer self plus or decrement a string, the regular expression r = (a | b )* aa (+ |-) 1 described in the language L (r).
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bianyi.doc