idiomatic D: what to use instead of pointers in constructing a tree data structure?

[Tobias Pankrath via Digitalmars-d-learn]

>>>
>>> what's wrong with the code above ?  i get an error no 
>>> identifier for declarator node.  (I have not used classes 
>>> much, since structs often seem to be enough for what I need 
>>> to do mostly).
>>
>> ref is a reserved keyword.
>>
>> --
>> Paulo
>
> this conversation is so funny: well what's wrong with this . 
> It's a keyword...
> Aa Ha ha ha ha , rol.
> Seriously, is it so complicated to use a D editor ? I mean with 
> syntax color...

No need to make fun of anyone.