Improving std.regex(p)

[Ellery Newcomer]

On 06/19/2010 10:55 PM, BCS wrote:
> Hello Nick,
>
>> "BCS" <none at anon.com> wrote in message
>> news:a6268ff154ca8ccddf1ef51e1d8 at news.digitalmars.com...
>>
>>> Hello Ellery,
>>>
>>>> Generally I think D's CT capabilities have a way to go yet before
>>>> this would be worth tackling. E.g. how do you build a parse tree if
>>>> pointers and classes aren't allowed in CT code?
>>>>
>>> You use the type system. I can say from experience that (memory
>>> issues aside) it works.
>>>
>> Trivial example?
>>
>
> Building an arbitrary tree:

Okay, you use structs without indirection. I guess that works. How much 
copying does that entail when you e.g. pass your tree in a function call?