cat.c

语法分析器 完成从c/c++向C++转变

/* unix cat utility, types files, event with wildcard args */



#include <dos.h>

#include <stdio.h>


int cat(char * pcName);


#define MAX_BUF 255

char  szBreakStr[MAX_BUF + 1];

int   iBreak;





main(int argc,char * argv[])
{

   struct find_t  stFind;


   int  iStat;

   if(argc > 2)
   {
      iBreak = 1;
      strcpy(szBreakStr,argv[2]);
   }
   else
      iBreak = 0;


   iStat = _dos_findfirst(argv[1],_A_NORMAL,&stFind);

   
   while(iStat == 0)
   {

      cat(stFind.name);

      iStat = _dos_findnext(&stFind);
   }


}



int cat(char * pcName)
{
   FILE * fp;
   char  szBuffer[MAX_BUF + 1];
   int   iLen;
   char * pc;

   fp = fopen(pcName,"r");

   while(!feof(fp))
   {
      pc = fgets(szBuffer,MAX_BUF,fp);

      if(pc == NULL)
         break;

      iLen = strlen(szBuffer);

      if(szBuffer[iLen -1] == '\n')
         szBuffer[iLen -1] = '\0';

      printf("%s\n",szBuffer);

   }

   fclose(fp);

   if(iBreak)
      printf("%s\n",szBreakStr);

   return(0);
}