Hello, I see a lot of functions and other stuff with a '!' in the name such as 'bitfields!' or 'ctRegex!'. What does it mean exactly? In scheme, we use such a convention to warn that a function is not pure, but I don't see the point of using it that way in D as there are other way to express it.
Moreover, I'm looking for a style guide of D, something like the PEP8 for python. Is there anything like that? Thanks!
