gettok.c

LINUX下VI编写的SHELL工具LINUX下VI编写的SHELL工具

#include "smallsh.h"

//gettok.c

int gettok(char **outptr)
{
	int type;
 	*outptr = tok;
  	while(*ptr == ' ' || *ptr == '\t')
   		ptr++;
  	*tok++ = *ptr;
         
 	switch(*ptr++)
  	{
   		case '\n':
     		type = EOL; break;
         case ';':
         	type= SEMICOLON; break;
         default:
         	type = ARG;
      	while(inarg(*ptr))
   			*tok++ = *ptr++;
     }
     *tok++ = '\0';
     return type;
}