Point before the template

[cmplx]

Example of recursive templates in 
http://dlang.org/template-comparison.html

template factorial(int n) {
        const factorial = n * factorial!(n-1);
  }
template factorial(int n : 1) {
          const factorial = 1;
  }

void test() {
	writefln("%d", factorial!(4)); // prints 24
}

But I was wrong when I tried this example and put point before 
the factorial. But it still worked. why?

template factorial(int n) {
        const factorial = n * .factorial!(n-1);//<------
  }
template factorial(int n : 1) {
          const factorial = 1;
  }
void test() {
	writefln("%d", factorial!(4)); // prints 24
}

I`m using DMD 2.063