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From: Nicolas Goaziou <n.goaziou@gmail.com>
To: Eric Schulte <schulte.eric@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 16:39:35 +0100	[thread overview]
Message-ID: <871utrj1hk.fsf@gmail.com> (raw)
In-Reply-To: <87pqhbj4f3.fsf@gmail.com> (Eric Schulte's message of "Tue, 01 Nov 2011 08:36:16 -0600")

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

> 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

That sounds way better to me. It's just a matter of modifying the
following part in `org-set-regexps-and-options'.

#+begin_src emacs-lisp
((equal key "PROPERTY")
 (when (string-match "\\(\\S-+\\)\\s-+\\(.*\\)" value)
   (push (cons (match-string 1 value) (match-string 2 value))
         props)))
#+end_src

If we want to be a bit more future-proof on that side, we may even
refine the `org-accumulating-properties' idea by making it an
`org-accumulated-properties-alist' where key is property's name and
value a symbol describing how they are accumulated. That symbol could
be, for example `space', `comma', `newline', `consed'.


Regards,

-- 
Nicolas Goaziou

  reply	other threads:[~2011-11-01 15:41 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
2011-11-01 15:39             ` Nicolas Goaziou [this message]
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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