On Tue, Nov 19, 2013 at 1:06 AM, <
msk...@ansuz.sooke.bc.ca> wrote:
> On Mon, 18 Nov 2013, Alexandre Courbot wrote:
>> nowhere a place where one can download the Xetex sources for the whole
>> book, or a mention of a compatible license for your work on your
>> website. Note that doing so does not prevent you from charging a fee
>
> Careful. CC-BY-SA doesn't require source code. There is no mention of
> source code in the license text at
>
http://creativecommons.org/licenses/by-sa/3.0/legalcode
>
> The prohibition on "effective technological measures" might forbid
> deliberate obfuscation of source code when source code happens to be
> distributed, but the works for which CC was designed are things like
> photographs and musical recordings, for which (people imagine...) there's
> no meaningful concept equivalent to source code and it wouldn't make sense
> to require it. This is one reason I don't like using CC licenses for
> anything that is even sort of like software; I *want* a requirement for
> source code and CC doesn't include such a requirement. If KanjiVG were
> itself a document written in XeTeX one might argue that distributing a
> modified version should include distributing the modified XeTeX source
> code; but that is not the case here. I think distributing just a PDF
> could be enough. Of course it would be a big no-no to set the PDF flags
> that forbid copy-and-paste, or similar; that's the "technological
> measures" issue again.
Good point. I was actually hesitating between GPL and CC-BY-SA
(actually we started with CC-BY-NC-SA before switching) but went for
the latter because of the blurry line between "source code" and
"artistic" (?) data with KanjiVG. In the end it's definitely not a
computer program.
The "remix" clause is difficult to enforce if the source code of the
work (whenever it applies) is not available, but I was afraid using
the GPL would precisely create problems for the cases where is does
not apply.
> CC-BY-SA forbids relicensing derived works under non-free licenses, and
> the "All rights reserved" license (i.e. no license grant at all) stated on
> the book's copyright page is a problem for that reason.
Yes, precisely the point I am trying to explain to Thomas, and the
CC-BY-SA is very clear about this. I hate this kind of situation -
obviously Thomas did not try to rip the data since he had the courtesy
to announce his project here. So I really hope the terms of the
licence will be acceptable to him and that he will be able to conduct
his project successfully. Free as in speech does not mean you cannot
sell your work and does not interfere with that goal in a world where
piracy is the shameless standard.
Thanks,
Alex.