I've gotten used to put 'beginning of ...' and 'end of ...' comments into a large project to demarcate large functions or collections of them, along with inline

I've gotten used to put 'beginning of ...' and 'end of ...' comments into a large project to demarcate large functions or collections of them, along with inline documentation. Line numbers are worthless for this. It'd be great if there were FORMAL ways * to demarcate that are standard (yeah, what XKCD said) in ALL languages. Then anyone could just run a 'show architecture' application on the code and it would always be current. After a few months (or thousands of loc), that map in your head starts to fade. * EDIT: call it, say, CAML