std.data.json formal review

[Andrei Alexandrescu via Digitalmars-d]

On 8/19/15 1:59 PM, Jacob Carlborg wrote:
> On 2015-08-19 19:29, Andrei Alexandrescu wrote:
>
>> Forgot about those. The invariant is that byToken should return a
>> sequence of tokens that, when parsed, produces the originating object.
>
> That should be possible without the comma tokens in this case?

That is correct, but would do little else than confusing folks. FWIW the 
distinction is similar to AST vs. CST (C = Concrete). -- Andrei