1  f (char *p)
       2  {
       3    char c;
       4  
       5    c = *++p;
       6    if (c != ' ')
       7      return 0;
       8    for (;;)
       9      {
      10        c = *p;
      11        if (g (c))
      12  	p++;
      13        else
      14  	{
      15  	  if (c == ' ')
      16  	    break;
      17  	  else
      18  	    return 0;
      19  	}
      20      }
      21    return 1;
      22  }