c语言词法分析源代码（C language lexical analysis source code）.docVIP

c语言词法分析源代码（C language lexical analysis source code） char * bl [] = {, auto , break , case , char , which , continue , default , do , double , else , enum , extern , float , , goto , if , int , long , register , return , short , signed , sizeof , static , struct , switch , typedef , _ complex , _ imaginary union , unsigned , violence , volatile , while }; / / 分隔符表 char * fg [] = {, (,) , [,] ,, (,) , , , , # , | }; / / 运算符表 char * ys [] = {, + , - , * , / ,% , or = = , = , = ,! = ,! , | |, , ~ , | , ^ , , = ,? : , , - , + + , - , + = , - , * = = / = ,% = }; int s0 [35], s1 [12], s2 [32]; int count _ 1 = 0, count _ 2 = 0, count _ 3 = 0, count _ 4 = 0, count _ 5 = 0; initialize (void) { int i; for (i = 0; i = 34; i + +) { s0 [i] = 0; } for (i = 0; i = 11; i + +) { s1 [i] = 0; } for (i = 0; i = 31; i + +) { s2 [i] = 0; } file * fp; / * 依次创建: 保留字内部码文档 baoliuzi.txt, 分隔符内部码文档 fengefu.txt 运算符内部码文档 yunsuanfu.txt, 标识符内部码文档 bs.txt, 整型常量内部码 文档 zx.txt, 浮点型常量内部码文档 fd.txt, 字符型常量内部码文档 zf.txt 字符串类型常量内部码文档 zc.txt, 注释文档 zs.txt, 源代码内部码文档 code.txt * / if (((fp = fopen (baoliuzi.txt, w)) = = null) | | ((fp = fopen (fengefu.txt, w)) = = null) | | ((fp = fopen (yunsuanfu.txt, w)) = = null) | | \ ((fp = fopen (bz.txt, w)) = = null) | | ((fp = fopen (zx.txt, w)) = = null) | | ((fp = fopen (fd.txt, w)) = = null) | | ((fp = fopen (zf.txt. , w)) = = null) | | ((fp = fopen (zc.txt, w)) = = null) | | ((fp = fopen (zs.txt, w)) = = null) | | ((fp = fopen (code.txt w)) = = null)) { printf (error! cannot create the file! ) ; exit (0); } fclose (fp); / * 依次创建: 标识符文档 count _ 1.txt, 整型常量文档 count _ 2.txt, 浮点型常量文档 count _ 3.txt, 字符型常量文档 count _ 4.txt, 字符串常量文档 count _ 5.txt * / if (((fp = fopen (count _ 1.txt, w)) = = null) | | ((fp = fopen (count _ 2.txt, w)) = = null) | | ((fp = fopen (count _ 3.txt, w)) = = null) | | \ ((fp = fopen (count _ 4.txt, w)) = = null) | | ((fp = fopen (count _ 5.txt, w)) = = null)) { printf (error! cannot create the file! ) ; exit (0); } fclose (fp); } void cha