having a folder containing dots in the import path

[Robert]

Hi guys!

I just made the discovery that putting a D source file named "d" in a
directory named "a.b.c" with a module declaration like:
 module a.b.c.d;

works as expected (can be imported via import a.b.c.d;). This is
actually pretty cool and useful (and I hope nobody removes this feature
now, that I mentioned it!). I was just wondering if it is ok to rely on
this or if it is unintended/unspecified behaviour that might change?

Thanks!

Best regards,

Robert