Wiki D Programming Book

[Walter Bright]

Frank Benoit wrote:
>> I don't think so.
>> The official D specs are copy righted.
>> Wikibooks are copy lefted (GNU Free Documentation License)
> 
> Is this the right way?
> Doesn't the spec need to be free as well as the compiler front-end?
> 
> If the spec is copyrighted, how can someone write a book about D and it
> spec? Does everyone have to ask digitalmars first?
> 
> A few post before i asked "@Walter". But there is no reaction.
> 
> A lot of books contain a reference part which is mostly a commented copy
> of some spec.

The exact text is copyrighted, but the ideas are not. You cannot 
copyright an idea (you can patent them, but none of D is patented).

The C and C++ specifications are copyrighted, but that hasn't impaired 
an endless procession of C and C++ reference books from being written - 
but none of them duplicate the specs word for word.

The difference between the C/C++ specs and the D spec is the latter is 
free, the former costs $ before they can be downloaded.