简单C语言编译器之主函数main.c【待完善】

程序主函数如下：

 

/* ＋＋＋＋＋＋＋＋＋＋　头文件部分　＋＋＋＋＋＋＋＋＋＋ */#include "head.h"#include "node.h"#include "pubvar.h"#include "table.h"#include "function.h"/* ＋＋＋＋＋＋＋＋＋＋　主函数开始　＋＋＋＋＋＋＋＋＋＋ */int main(){char c;int id;int od;fp = fopen("test.txt","r");if(!fp){printf("Can/'t open this file./n");exit(1);}FHead = (Flink *)malloc(sizeof(Flink));FHStack = (Flink *)malloc(sizeof(Flink));FEHead = (FourExp *)malloc(sizeof(FourExp));SLHead = (SLink *)malloc(sizeof(SLink));FHStack->next = NULL;FHead->next = NULL;FEHead->next = NULL;SLHead->next = NULL;c = fgetc(fp);id = Check(c,&od);while(!feof(fp)){FHead->next = NULL;while(c!=';'){switch(id){case 0:c = fgetc(fp);id = Check(c,&od);break;case 1:// 如果是字母则继续读取，放入A中进行分析是否是保留字或者是变量，进而进行相关处理k = 0;do{if(k < 11){A[k++] = c; }c = fgetc(fp);id = Check(c,&od); }while(id==1||Check(c,&od)==2);A[k] = '/0';if(IsReserve(&od))// 如果是保留字{InsertFlink(A,od);// 插入到链表中去}else{// 否则为变量InsertFlink(A,10);}break;case 2:// 如果是数字则进行凑数k = 0;do{if(k < 11){A[k++] = c; }c = fgetc(fp);id = Check(c,&od); }while(id==2);A[k] = '/0';InsertFlink(A,20);break;case 3: // 如果是边界符A[0] = c;A[1] = '/0';InsertFlink(A,od);c = fgetc(fp);id = Check(c,&od);break;case 4:// 如果是运算符k = 0;do{if(k < 11){A[k++] = c;}//c = GetCh();c = fgetc(fp);id = Check(c,&od); }while(id==4);A[k] = '/0';InsertFlink(A,od);break;}}A[0] = ';';A[1] = '/0';InsertFlink(A,od);Analysis();c = fgetc(fp);id = Check(c,&od);WriteFile();}return 0;}