On Sun, Jan 3, 2016 at 8:36 AM, Emmanuel Charpentier
<emanuel.charpent...@gmail.com> wrote:
> Dear Volker,
>
> Le dimanche 3 janvier 2016 16:33:36 UTC+1, Volker Braun a écrit :
>>
>> On Sunday, January 3, 2016 at 2:41:51 PM UTC+1, Emmanuel Charpentier
>> wrote:
>>>
>>> "other language" cells : %maxima and %r (possibly other interpreters such
>>> as %octave) do not work as expected. Both %maxima and %r open new instances
>>> of their respective interpreters and enter an REPL that cannot be exited
>>> (even with an explicit "quit();" or "q('no')". In other words, they never
>>> return
>>
>> Interactive line magics obviously can't work in the browser like on the
>> command line
>>
>>
>> The lack of appropriate cell magics (%%maxima) is just an existing bug on
>> the commandline.
>
>
> Indeed. We should have %%maxima, %%r , %%pari, etc...
>
> [ BTW : that's not really a bug, but rather a design conflict : the original
> %mode functions were designed to switch (for an indefinite scope) the
> behaviour of the REPL.This was transposed in the Sage notebook as what
> amounts to the equivalent of Jupyter's cell magics (scope defined as the
> current cell). Whereas line magics are, as far as I understand,
> Jupyter-specific... We can't be consistent across notebooks without
> redefining our "mode switch" magics as "cell magics", and rename them with
> "%%"... ]
In case you are curious, in SageMathCloud worksheets a line mode is
%foo <stuff on the line>
and a cell mode is
%foo(optional, arguments)
<rest of the cell>
In SMC %foo is just foo('... rest of line or cell...'), with some
optional hooks (e.g., support foo.eval for backwards compat with
sage). So a "magic" is much less magic -- just define any function
that takes a string as input, and you've written one.
I don't use %% anywhere.
I don't care what you do with Jupyter, but I'm sticking with this
design for cell modes, and definitely won't change.
-- William
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