词法分析器。

词法分析程序，分析C源代码，找出其中的单词，并确定单词的类型-Lexical analyzer. /*** Sample application analysing C code to accidence file* lexical analysis procedures, analysis of the C source code, find the word, and to determine the type of word* Keyword KEY* identifier ID* integer INTEGER* floating-point FLOAT* separated character SEPARATOR* operator OPERATOR* scheduled Yifu of PRETREATMENT* string STRING as " string" * character CHAR as　 c　* error character ERROR