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From: Eric Schulte <schulte.eric@gmail.com>
To: Nicolas Goaziou <n.goaziou@gmail.com>
Cc: Org Mode List <emacs-orgmode@gnu.org>
Subject: Re: About commit named "Allow multi-line properties to be specified in property blocks"
Date: Tue, 01 Nov 2011 08:36:16 -0600	[thread overview]
Message-ID: <87pqhbj4f3.fsf@gmail.com> (raw)
In-Reply-To: <87ty6ock7z.fsf@gmail.com> (Nicolas Goaziou's message of "Tue, 01 Nov 2011 09:36:48 +0100")

Nicolas Goaziou <n.goaziou@gmail.com> writes:

> Correcting myself,
>
>> Typically, what is required here is to add "#+property:" to the
>> cumulative family. Thus,
>>
>> #+property: var foo=1
>> #+property: var bar=2
>>
>> is exactly the same as #+property: var foo=1 var bar=2.
>>
>> Also, make sure var assignations accumulate too.
>
> I don't think "#+property:" should belong to a cumulative family of
> keywords. But Babel "var" keyword definitely should. Thus, the idea
> stays the same: on multiple "var" calls, accumulate values instead of
> replacing them (unless, obviously, the variables has already been
> assigned a value before).

This was one of the proposed options to solve this problem, namely
introduce a list of properties whose value accumulates rather than is
replaced.  Since the property list data structure only allows each key
to appear once, the accumulation would necessarily occur on the value
side, so assuming "var" is an accumulating property, then 

#+property: var foo=1
#+property: var bar=2

would result in `org-file-properties' having the following value

  (("var" . "foo=1 bar=1"))

Which with some changes in the code-block side code could be used by
code blocks to assign multiple variables.

I went with changing property syntax rather than internal behavior
because I am not overly familiar with properties or the code with which
they were implemented and I felt (probably incorrectly) that this would
be a less dramatic change to Org-mode.  I'm happy to work up a solution
along the lines suggested above, which would introduce a variable like
`org-accumulating-properties' or some-such which would default to only
holding the "var" property name

Best -- Eric

-- 
Eric Schulte
http://cs.unm.edu/~eschulte/

  reply	other threads:[~2011-11-01 14:36 UTC|newest]

Thread overview: 60+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-10-31 19:06 About commit named "Allow multi-line properties to be specified in property blocks" Nicolas Goaziou
2011-10-31 20:05 ` Eric Schulte
2011-10-31 20:49   ` Nicolas Goaziou
2011-10-31 21:30     ` Eric Schulte
2011-11-01  8:24       ` Nicolas Goaziou
2011-11-01  8:36         ` Nicolas Goaziou
2011-11-01 14:36           ` Eric Schulte [this message]
2011-11-01 15:39             ` Nicolas Goaziou
2011-11-01 16:58               ` Eric Schulte
2011-11-01 17:48                 ` Christian Moe
2011-11-01 19:02                   ` Eric Schulte
2011-11-01 19:45                     ` Christian Moe
2011-11-01 20:22                       ` Eric Schulte
2011-10-31 21:33     ` Christian Moe
2011-10-31 21:22   ` Christian Moe
2011-10-31 21:36     ` Eric Schulte
2011-11-01  7:33       ` Christian Moe
2011-11-02 15:35     ` Bastien
2011-11-02 17:39       ` Nicolas Goaziou
2011-11-03  1:26         ` Bastien
2011-11-03  8:08           ` Christian Moe
2011-11-03 15:10             ` Nick Dokos
2011-11-03 18:32           ` Eric Schulte
2011-11-03 20:01             ` Nicolas Goaziou
2011-11-03 20:18               ` Eric Schulte
2011-11-03 20:23             ` Eric Schulte
2011-11-04  8:02               ` Rainer M Krug
2011-11-04 17:48                 ` Darlan Cavalcante Moreira
2011-11-04 19:25                   ` Eric Schulte
2011-11-07 22:09                     ` Eric Schulte
2011-11-08  8:42                       ` Rainer M Krug
2011-11-08  9:31                       ` Sebastien Vauban
2011-11-08  9:41                         ` Rainer M Krug
2011-11-08  9:58                           ` Sebastien Vauban
2011-11-08 10:06                             ` Rainer M Krug
2011-11-08 14:42                               ` Darlan Cavalcante Moreira
2011-11-08 15:06                                 ` Sebastien Vauban
2011-11-08 16:03                               ` Eric Schulte
2011-11-08 22:53                                 ` Eric Schulte
2011-11-09  8:25                                   ` Rainer M Krug
2011-11-09 16:12                                     ` Eric Schulte
2011-11-09 17:18                                       ` Rainer M Krug
2011-11-09 22:31                                       ` Sebastien Vauban
2011-11-15 12:33                                         ` Rainer M Krug
2011-11-15 16:00                                           ` Eric Schulte
2011-11-15 16:37                                             ` Torsten Wagner
2011-11-15 16:56                                               ` Eric Schulte
2011-11-15 17:13                                                 ` Thomas S. Dye
2011-11-15 18:22                                                   ` Eric Schulte
2011-11-15 17:24                                             ` Rainer M Krug
2011-11-08  9:41                 ` Sebastien Vauban
2011-11-08  9:44                   ` Rainer M Krug
2011-11-08 16:01                     ` Eric Schulte
2011-11-02 21:05 ` Samuel Wales
2011-11-02 21:21   ` Samuel Wales
2011-11-03  1:42   ` Bastien
2011-11-03  8:19     ` Christian Moe
2011-11-03 18:34     ` Eric Schulte
2011-11-03 18:59       ` Eric Schulte
2011-11-09 17:40       ` Samuel Wales

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