From: "Eric Schulte" <schulte.eric@gmail.com>
To: Dan Davison <dandavison7@gmail.com>
Cc: emacs-orgmode <emacs-orgmode@gnu.org>,
Rainer M Krug <r.m.krug@gmail.com>
Subject: Re: [BABEL] "unset" :var definitions for subtree
Date: Sun, 13 Feb 2011 11:28:00 -0700 [thread overview]
Message-ID: <87k4h3rdgc.fsf@gmail.com> (raw)
In-Reply-To: m1zkq0sp9f.fsf@94.197.159.103.threembb.co.uk
[...]
>> Maybe we could extend the :var header argument to support the following
>> syntax...
>>
>> #+begin_src emacs-lisp :var A=1 B=3
>> ;; code
>> #+end_src
>>
>> or
>>
>> ** two vars in a properties block
>> :PROPERTIES:
>> :var: test1=7 test2=8
>> :END:
>>
>> That shouldn't be overly difficult, and should solve our requirements.
>
> Yes, that looks good.
>
> In the following Org file
>
> ---------------------------------------
> #+property: :var a=1 b=2
>
> * h1
> :PROPERTIES:
> :var: c=3
> :END:
> ** h11
> :PROPERTIES:
> :var: d=4 e=5 b=7
> :END:
>
> #+begin_src sh :var f=6
> # code here
> #+end_src
> ---------------------------------------
>
> if we follow programming languages by analogy then the behavior we
> should aim for is for variables a,b,c,d,e to all be set in the src
> block, with b having the value 7.
>
> I've made a start on a patch to do that -- it involves treating :var
> differently from other header args. Whereas normal property inheritance
> searches up the tree until the specified property is encountered, my
> patch searches up the tree to the root, collecting all the :var
> assignments encountered.
>
Maybe we should do this sort of exhaustive search for *all* header
argument types. Are there any header arguments aside from :var which
could possibly want to take multiple values collected at different
levels of inheritance? I suppose :results may also take multiple values
which could reasonably be collected across multiple levels of hierarchy.
>
> So perhaps we should go for a solution involving both the new ":var a=1
> b=2" syntax (to allow multiple :var in the same block), and the
> pluralistic inheritance described above (to allow :var to be collected
> from all levels in the hierarchy).
>
That sounds good to me. Is this code up in a repository somewhere, or
should be send patches back and forth?
Best -- Eric
>
> Dan
>
>
>
>>
>> Sound good? -- Eric
>>
>> _______________________________________________
>> Emacs-orgmode mailing list
>> Please use `Reply All' to send replies to the list.
>> Emacs-orgmode@gnu.org
>> http://lists.gnu.org/mailman/listinfo/emacs-orgmode
next prev parent reply other threads:[~2011-02-13 18:34 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-02-07 15:12 [BABEL] "unset" :var definitions for subtree Rainer M Krug
2011-02-10 1:27 ` Eric Schulte
2011-02-10 8:33 ` Rainer M Krug
2011-02-10 16:48 ` Eric Schulte
2011-02-11 9:00 ` Rainer M Krug
2011-02-11 9:32 ` Dan Davison
2011-02-11 10:22 ` Rainer M Krug
2011-02-11 11:55 ` Dan Davison
2011-02-11 12:29 ` Rainer M Krug
2011-02-11 13:49 ` Dan Davison
2011-02-11 13:56 ` Rainer M Krug
2011-02-12 22:54 ` Eric Schulte
2011-02-11 12:19 ` Dan Davison
2011-02-11 12:58 ` Rainer M Krug
2011-02-11 13:41 ` Dan Davison
2011-02-11 14:05 ` Rainer M Krug
2011-02-12 23:12 ` Eric Schulte
2011-02-13 1:21 ` Dan Davison
2011-02-13 18:28 ` Eric Schulte [this message]
2011-02-13 21:38 ` Dan Davison
2011-02-14 19:22 ` Eric Schulte
2011-02-11 14:16 ` Eric Schulte
2011-02-11 14:45 ` Dan Davison
2011-02-12 23:13 ` Eric Schulte
2011-02-13 1:38 ` Dan Davison
2011-02-13 18:33 ` Eric Schulte
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