Re: :session question

[Rainer M Krug <Rainer@krugs.de>]

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top post - sorry: I overlooked this thread somehow.

Eric Schulte <schulte.eric@gmail.com> writes:

> Achim Gratz <Stromeko@nexgo.de> writes:
>
>> Eric Schulte writes:
>>> If you mean that there should be new syntax for setting header arguments
>>> on a file or sub-tree basis w/o using file local variables, I'd be happy
>>> to apply a patch.
>>
>> I'm thinking that something like
>>
>> #+PROPERTY: header-args:R :session "*R*" :exports none
>>
>> should work.
>
> I hate to change syntax, but the syntax you mention above does look both
> appealing and natural.  Even with working file local variables [1].

I agree - it looks very intuitive.

>
>> I've checked that the property interface returns the data as expected,
>> but I haven't implemented anything yet.  It does not seem to be an
>> overly difficult endeavour, however.
>>
>
> That is very good news.  With that portion working I would agree that
> this should be a fairly straightforward task.
>
>>
>>>> But importantly, there should be no way to set a default session name
>>>> without also specifying the language, regardless of which way one
>>>> tries to set this up.
>>>
>>> If you can think of a clean way to implement this then we should go for
>>> it.  I doubt many existing configurations rely on this behavior.
>>
>> General settings for all languages should be effected by
>>
>> #+PROPERTY: header-args :results value :exports none
>>
>> and there'd be a list of header arguments (or specific values) that are
>> either ignored or warned about when not associated with a particular
>> language.
>>
>> BTW, I think the current property syntax for header arguments should be
>> deprecated since it is the only place where the leading ":" is missing
>> for those.
>>
>> Comments, thoughts?
>>
>
> I think these are great ideas.  Personally I'd love to see them
> implemented.  Unfortunately I don't have time to work on an
> implementation currently.  I'm surprised that none of the users who
> motivated this discussion have chimed in.  Their opinions may be more

Shame on my head - here are now a few comments (and praises) following
in next emails.

Cheers,

Rainer

> valuable than my own in this regard (as I'm not a heavy #+Property
> user).
>
> Thanks for the clean and initially tested implementation idea!
>
>>
>>
>> Regards,
>> Achim.
>
>
> Footnotes: 
>
> [1]  Thanks to Bastien my patch allowing variables like
>      `org-babel-default-header-args:R' to be set file-local has been
>      applied to Emacs.

-- 
Rainer M. Krug

email: RMKrug<at>gmail<dot>com

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