编译原理：词法分析器(C++实现)

将PASCAL的源程序，即相应字符流转换成内部表示，并对标识符填写相应的符号表供编译程序以后各阶段使用，输出的单词符号格式为二元组（单词种别，单词在标识符表中的地址），标识符表格式有“序号”和“标识符本身的值”两项。-compiler : lexical analyzer (C achieved) will PASCAL source, that is, replaced by the corresponding characters in the internal circulation, also fill in the corresponding identifier of the symbol table compiler for the subsequent stages, Word output format for binary symbols (words of other species, the identifier word in the address table) Table format identifier "serial number" and the "value of the identifier" 2.