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From: "Sebastien Vauban" <wxhgmqzgwmuf-geNee64TY+gS+FvcfC7Uqw@public.gmane.org>
To: emacs-orgmode-mXXj517/zsQ@public.gmane.org
Subject: Re: About the use of PROPERTY "meta lines"...
Date: Tue, 03 Jan 2012 08:42:03 +0100	[thread overview]
Message-ID: <80mxa56xmc.fsf@somewhere.org> (raw)
In-Reply-To: 871uridlb1.fsf@gmx.com

Hi Eric and all,

Eric Schulte wrote:
> "Sebastien Vauban" <wxhgmqzgwmuf-geNee64TY+gS+FvcfC7Uqw@public.gmane.org> writes:
>
>> #+TITLE:     Properties
>> #+AUTHOR:    Seb Vauban
>> #+PROPERTY: var  foo=1
>> #+PROPERTY: var+ bar=2
>>
>> * Abstract
>>
>> IIUC, properties are set in this way:
>>
>> - on a file basis, before any heading, through the =PROPERTY= keyword,
>> - on a subtree basis, through the =PROPERTIES= block.
>>
>> My comprehension is that the =PROPERTY= keyword may not be used inside "trees",
>> and should be ignored if that would happen.
>
> While it is not normal usage, I think that it is legal for #+PROPERTY:
> lines (or #+Option: lines etc...) to appear inside of subtrees.

I realize this is not especially a Babel question, but more a Org core
question...

Thanks for your answer -- which generates a new one, though: what is then the
expected *semantics* of such a construct?

There are at least 3 different views on such a construct: putting a PROPERTY
line inside a subtree...

- ... resets some values from that point up to the end of the subtree
- ... resets some values from that point up to the end of the buffer
- ... defines some values which can have already been by the subtree

Best regards,
  Seb

>> The following example shows that either:
>>
>> - I'm wrong to think so,
>> - there is a bug.
>>
>> What is the right assumption here?
>>
>> * Subtree
>>
>> Being located in a subtree, the following lines are ill-placed IMHO:
>>
>> #+PROPERTY: var  foo="Hello
>> #+PROPERTY: var+ world"
>>
>> Though, they're well taken into account:
>>
>> #+begin_src emacs-lisp
>>   foo
>> #+end_src
>>
>> #+results:
>> : Hello world
>>
>> These lines have even wiped the definition of =bar= (because of the use of =var=
>> without any =+=):
>>
>> #+begin_src emacs-lisp
>>   (+ foo bar)
>> #+end_src
>>
>> returns the error "Symbol's value as variable is void: bar."

-- 
Sebastien Vauban

next prev parent reply	other threads:[~2012-01-03  7:42 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-12-29  8:58 About the use of PROPERTY "meta lines" Sebastien Vauban
2012-01-02 17:39 ` Eric Schulte
2012-01-03  7:42   ` Sebastien Vauban [this message]
2012-01-06  7:28     ` Eric Schulte
2012-01-06  7:57       ` Torsten Wagner
2012-01-06 17:13         ` cberry
2012-01-06 18:22           ` Eric Schulte
2012-01-06 18:07         ` Eric Schulte

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