On Sat, Oct 2, 2021 at 11:03 AM Hanno Perrey <ha...@hoowl.se> wrote:
>
> Hej,
>
> I have noticed that properties that stretch over multiple lines using
> the :value+: syntax are ignored by org-element-property and therefore
> also by e.g. org-export-get-node-property when exporting to ics via
> ox-icalendar.el (see example below). I was wondering now whether this is
> intentional and to be expected or a bug?
I use the :value+: syntax for the subtree properties regularly. For
exports, though, you need to prefix the properties with EXPORT_.
See the (org) Export Settings node in Org manual.
> When exporting sub-trees, special node properties can override the
above keywords. These properties have an ‘EXPORT_’ prefix. For
example, ‘DATE’ becomes, ‘EXPORT_DATE’ when used for a specific
sub-tree. Except for ‘SETUPFILE’, all other keywords listed above have
an ‘EXPORT_’ equivalent.
Here's one of the pathogenic test cases of ox-hugo:
=====
** Custom front matter in multiple lines
:PROPERTIES:
:EXPORT_FILE_NAME: custom-front-matter-multiple-lines
:EXPORT_DATE: 2017-07-24
:EXPORT_HUGO_CUSTOM_FRONT_MATTER: :foo bar
:EXPORT_HUGO_CUSTOM_FRONT_MATTER+: :baz zoo
:EXPORT_HUGO_CUSTOM_FRONT_MATTER+: :alpha 1
:EXPORT_HUGO_CUSTOM_FRONT_MATTER+: :beta "two words"
:EXPORT_HUGO_CUSTOM_FRONT_MATTER+: :gamma 10
:EXPORT_HUGO_CUSTOM_FRONT_MATTER+: :empty_string ""
:END:
=====
All the HUGO_CUSTOM_FRONT_MATTER properties get collected as expected.
Here's another example:
=====
#+author:
#+options: toc:nil
* Heading
:PROPERTIES:
:EXPORT_AUTHOR: abc def
:EXPORT_AUTHOR+: ghi jkl
:EXPORT_AUTHOR+: kmo pqr
:END:
=====
C-c C-e C-s t A exports to:
=====
_________________________
HEADING
abc def ghi jkl kmo pqr
_________________________
=====
