Pretty cool. I was wondering what kind of arcane magic they used to get $xxx working, since $ is not a standard identifier char... then I realised they straight

Pretty cool. I was wondering what kind of arcane magic they used to get $xxx working, since $ is not a standard identifier char... then I realised they straight up define $arg, $call, etc as constants (makes a lot of sense). And $ really is not an identifier char by the Standard, but evidently some compilers accept it.