strtok.c raw

   1  #include <string.h>
   2  
   3  char *strtok(char *restrict s, const char *restrict sep)
   4  {
   5  	static char *p;
   6  	if (!s && !(s = p)) return NULL;
   7  	s += strspn(s, sep);
   8  	if (!*s) return p = 0;
   9  	p = s + strcspn(s, sep);
  10  	if (*p) *p++ = 0;
  11  	else p = 0;
  12  	return s;
  13  }
  14