From: Darlan Cavalcante Moreira <darcamo@gmail.com>
To: mail@christianmoe.com
Cc: Sebastien Vauban <wxhgmqzgwmuf@spammotel.com>, emacs-orgmode@gnu.org
Subject: Re: [ANN] BREAKING CHANGE -- removing #+BABEL file-wide property lines
Date: Fri, 21 Oct 2011 18:05:26 -0300 [thread overview]
Message-ID: <4ea1de9c.67b4ec0a.553d.122a@mx.google.com> (raw)
In-Reply-To: <4EA1D4F9.5010302@christianmoe.com>
It's excellent that now babel understands multiple values in the "var"
property (I was one of the people that wanted this), but "There Is One More
Thing".
Would it be feasible to inherit variables from parent sub-trees?
Effectively, I'd like to append new values in lower level sub-trees, but
AFAIK setting the var property in a sub-tree will still replace the value
set in the parent sub-tree.
That is, in the example below the level-2 sub-trees would not have the foo
variable passed to babel.
--8<---------------cut here---------------start------------->8---
* Code with foo
:PROPERTIES:
:var: foo=1
:END:
** Code only with bar
:PROPERTIES:
:var: bar=2
:END:
src_block
** Code only with baz
:PROPERTIES:
:var: baz=3
:END:
src_block
--8<---------------cut here---------------end--------------->8---
Maybe a special keyword, such as "inherit" (or "append") could be used to
incorporate variables defined in the parent sub-tree, such that the example
would become
--8<---------------cut here---------------start------------->8---
* Code with foo
:PROPERTIES:
:var: foo=1
:END:
** Code with foo and bar
:PROPERTIES:
:var: bar=2, inherit
:END:
src_block
** Code with foo and baz
:PROPERTIES:
:var: baz=3, inherit
:END:
src_block
--8<---------------cut here---------------end--------------->8---
This should not affect global variables and "inherit" would inherit
variables defined only in the parent sub-tree (unless it also contains the
inherit keyword).
As a use case scenario, suppose I need to perform simulations for a few
different scenarios, each with small variations. This would allow me to
define common variables for a scenario in a higher level sub-tree and more
specific variables in the lower level sub-trees.
--
Darlan Cavalcante
At Fri, 21 Oct 2011 22:24:25 +0200,
Christian Moe <mail@christianmoe.com> wrote:
>
> Hi,
>
> Yes, that works nicely, and should solve Rainer's problem.
> I haven't been able to think of anything else that can't be handled by
> properties.
>
> And I do think it's a good idea to winnow down the syntax a bit, even
> if things break. I just like to grumble.
> :-)
>
> Yours,
> Christian
>
> On 10/21/11 7:37 PM, Eric Schulte wrote:
> > Nice idea. This same issue with "var" arose when we first started
> > allowing header arguments to be specified inside subtree properties.
> > I've just implemented your suggestion so the following are now possible.
> >
> > #+PROPERTY: var foo=1, bar=2
> > #+PROPERTY: cache yes
> >
> > #+begin_src emacs-lisp
> > (+ foo bar)
> > #+end_src
> >
> > #+results[be32e67491d4e92f75769aebe423c20ca01626fe]:
> > : 3
> >
> > and
> >
> > #+begin_src emacs-lisp :var foo="this", bar="that"
> > (concat foo " " bar)
> > #+end_src
> >
> > #+results[3cde077efa81f1ca24a62ac264dbd5776b6e0054]:
> > : this that
> >
> > Thanks for the suggestion and I hope the above is a sufficient
> > replacement for the now-missing #+BABEL: syntax.
> >
> > Cheers -- Eric
>
>
next prev parent reply other threads:[~2011-10-21 21:05 UTC|newest]
Thread overview: 132+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-10-20 19:43 [ANN] BREAKING CHANGE -- removing #+BABEL file-wide property lines Eric Schulte
2011-10-20 20:06 ` Nick Dokos
2011-10-20 20:12 ` Eric Schulte
2011-10-20 20:51 ` Nick Dokos
2011-10-20 21:04 ` Sebastien Vauban
2011-10-20 21:50 ` [RFC] Standardized code block keywords Eric Schulte
2011-10-21 1:52 ` Thomas S. Dye
2011-10-21 2:57 ` Nick Dokos
2011-10-21 7:26 ` Christian Moe
2011-10-21 16:12 ` Eric Schulte
2011-10-21 19:10 ` Thomas S. Dye
2011-10-23 12:20 ` Daniel Bausch
2011-10-23 16:09 ` Thomas S. Dye
2011-10-24 5:49 ` Daniel Bausch
2011-10-21 8:17 ` Sebastien Vauban
2011-10-21 16:17 ` Eric Schulte
2011-10-21 17:37 ` Sebastien Vauban
[not found] ` <CAGhLh6GXg6nMZ-xdu-EP=YRx7Pznrme2Yq1S0vdc6Yq0tPMxFg@mail.gmail.com>
2011-10-25 6:59 ` Rainer M Krug
2011-10-21 16:08 ` Eric Schulte
2011-10-21 16:05 ` Eric Schulte
2011-10-21 18:02 ` Thomas S. Dye
2011-10-22 15:19 ` Eric Schulte
2011-10-21 7:43 ` Torsten Wagner
2011-10-21 8:27 ` Sebastien Vauban
2011-10-21 16:25 ` Eric Schulte
2011-10-21 16:24 ` Eric Schulte
2011-10-21 17:41 ` Sebastien Vauban
2011-10-24 1:06 ` Torsten Wagner
2011-10-25 6:44 ` Rainer M Krug
2011-10-25 7:24 ` Jambunathan K
2011-10-25 8:21 ` Sebastien Vauban
2011-10-21 12:22 ` Nicolas Goaziou
2011-10-21 16:27 ` Eric Schulte
2011-10-21 17:48 ` Eric Schulte
2011-10-21 19:24 ` Viktor Rosenfeld
2011-10-23 12:42 ` Daniel Bausch
2011-10-24 7:37 ` Eric S Fraga
2011-10-24 14:39 ` Darlan Cavalcante Moreira
2011-10-24 7:47 ` Sebastien Vauban
2011-10-25 1:30 ` Eric Schulte
2011-10-25 7:14 ` Daniel Bausch
2011-10-25 8:14 ` Sebastien Vauban
2011-10-25 14:44 ` Eric Schulte
2011-10-25 15:38 ` Christian Moe
2011-10-25 15:42 ` Nick Dokos
2011-10-25 16:28 ` Martyn Jago
2011-10-25 16:49 ` Eric Schulte
2011-10-25 17:21 ` Nick Dokos
2011-10-26 5:58 ` Daniel Bausch
2011-10-26 13:10 ` Giovanni Ridolfi
2011-10-26 14:41 ` Daniel Bausch
2011-10-26 15:04 ` Nick Dokos
2011-10-27 5:25 ` Daniel Bausch
2011-10-28 16:49 ` Eric Schulte
2011-10-28 18:31 ` Eric Schulte
2011-10-28 18:40 ` Nick Dokos
2011-10-28 18:52 ` Eric Schulte
2011-10-28 23:22 ` Nick Dokos
2011-10-28 23:39 ` Thomas S. Dye
2011-10-29 2:18 ` Nick Dokos
2011-10-31 7:25 ` Daniel Bausch
2011-10-31 19:01 ` Eric Schulte
2011-11-01 6:34 ` C-c C-c not working at end of #+end_src line (was: [RFC] Standardized code block keywords) Daniel Bausch
2011-10-25 14:17 ` [RFC] Standardized code block keywords Eric Schulte
2011-10-26 5:41 ` Daniel Bausch
2011-10-26 6:17 ` Thomas S. Dye
2011-10-26 12:16 ` Eric Schulte
2011-10-21 18:14 ` Thorsten
2011-10-20 21:34 ` [ANN] BREAKING CHANGE -- removing #+BABEL file-wide property lines Eric Schulte
2011-10-20 21:44 ` suvayu ali
2011-10-20 21:52 ` Eric Schulte
2011-10-20 22:23 ` Suvayu Ali
2011-10-20 21:47 ` Sebastien Vauban
2011-10-20 21:54 ` Eric Schulte
2011-10-20 21:57 ` Nick Dokos
2011-10-20 21:48 ` Nick Dokos
2011-10-20 21:57 ` Eric Schulte
2011-10-20 22:08 ` Nick Dokos
2011-10-20 22:18 ` Eric Schulte
2011-10-21 7:28 ` Sebastien Vauban
2011-10-21 8:14 ` Christian Moe
2011-10-21 9:12 ` Rainer M Krug
2011-10-21 10:47 ` Christian Moe
2011-10-21 10:59 ` Rainer M Krug
2011-10-21 11:17 ` Christian Moe
2011-10-21 11:18 ` Rainer M Krug
2011-10-21 17:37 ` Eric Schulte
2011-10-21 18:09 ` Nick Dokos
2011-10-22 15:25 ` Eric Schulte
2011-10-21 18:35 ` Rainer M Krug
2011-10-21 18:40 ` Rainer M Krug
2011-10-22 7:58 ` Christian Moe
2011-10-24 9:44 ` Rainer M Krug
2011-10-22 15:52 ` Eric Schulte
2011-10-22 19:07 ` Christian Moe
2011-10-24 10:10 ` Rainer M Krug
2011-10-24 11:37 ` Christian Moe
2011-10-24 12:11 ` Sebastien Vauban
2011-10-24 12:38 ` Christian Moe
2011-10-24 15:07 ` Nicolas Goaziou
2011-10-24 9:50 ` Rainer M Krug
2011-10-25 9:35 ` Sebastien Vauban
2011-10-25 10:06 ` Rainer M Krug
2011-10-25 10:31 ` Sebastien Vauban
2011-10-25 11:47 ` Rainer M Krug
2011-10-25 14:13 ` Eric Schulte
2011-10-26 14:00 ` Sebastien Vauban
2011-10-26 15:20 ` Eric Schulte
2011-10-22 15:26 ` Eric Schulte
2011-10-21 20:24 ` Christian Moe
2011-10-21 21:05 ` Darlan Cavalcante Moreira [this message]
2011-10-22 7:08 ` Sebastien Vauban
2011-10-22 15:53 ` Eric Schulte
2011-10-24 18:07 ` Darlan Cavalcante Moreira
2011-10-31 18:53 ` Eric Schulte
2011-10-31 20:18 ` Samuel Wales
[not found] ` <87obwwkia5.fsf@gmail.com>
[not found] ` <CAJcAo8scJXx=3s0f_FDAJXFKW2uh5gFTHwgDRbM6xXohr5ZPzQ@mail.gmail.com>
2011-10-31 22:22 ` Samuel Wales
2011-11-01 1:28 ` Eric Schulte
2011-11-01 14:26 ` Nick Dokos
2011-11-01 15:02 ` Nick Dokos
2011-11-01 15:17 ` Eric Schulte
2011-11-02 11:12 ` Rainer M Krug
2011-11-02 12:18 ` Nicolas Goaziou
2011-11-02 14:16 ` Rainer M Krug
2011-11-03 18:40 ` Eric Schulte
2011-11-03 18:51 ` Jambunathan K
2011-11-04 9:15 ` Rainer M Krug
2011-11-02 12:57 ` Brian Wightman
2011-11-02 14:18 ` Rainer M Krug
2011-11-03 1:29 ` Bastien
2011-10-20 21:27 ` Christian Moe
2011-10-20 21:32 ` Nick Dokos
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