On 2018-05-14 14:13 +02, Nicolas Goaziou <m...@nicolasgoaziou.fr> wrote:
> You shouldn't add another "attr" keyword, which is reserved for export
> back-ends. Actually, every Babel header can be located either on the
> block opening line, e.g.,
>
> #+begin_src emacs-lisp :some-property some-value
>
> or as an affiliated #+header: keyword, e.g.,
>
> #+header: :some-property some-value
> #+begin_src emacs-lisp
>
>
> Note that "#+header:" keywords are supported everywhere, without
> modifying the parser, e.g.,
>
> #+header: :some-property some-value
> A paragraph.
The attr was meant for BEGIN_EXPORT blocks because it seems to me that
an equivalent of ‘org-babel-get-src-block-info’ does not exist for those
blocks, and that function _only_ works with BEGIN_SRC blocks. Is there
a function available or would I have to write one to do this?
Looking all over the Org manual searching for BEGIN_(LATEX|HTML), I
haven't seen once a header argument used with a block that is not a
BEGIN_SRC block, in neither of the forms. And none of the ‘org-edit-*’
functions apart from ‘org-edit-src-code’ in org-src.el seem to process
header arguments, and nor does ‘org-src--edit-element’.
I can't find any documentation on Org-mode's internal APIs and how
different parts fit together, so I'm having to figure things out reading
source code.
The following form returns nil for the following examples:
(plist-get :header (cadr (org-element-at-point))) ;=> nil
(cl-remove-if-not #'symbolp (cadr (org-element-at-point)))
;=> (:type :begin :end :value :post-blank :post-affiliated :header
:parent nil)
#+header: :edit-bindings '((lexical-binding t))
#+BEGIN_EXPORT latex
#+END_EXPORT
#+BEGIN_EXPORT latex :edit-bindings '((lexical-binding t))
#+END_EXPORT
#+BEGIN_SRC elisp :edit-bindings '((lexical-binding t))
#+END_SRC
#+header: :edit-bindings '((lexical-binding t))
#+BEGIN_SRC elisp
#+END_SRC
> Also, for integration in Org mode proper, some testing would be more
> than welcome
If this feature will be included upstream, I can make this into a patch
instead of an advice and add the related docs and tests. This was meant
as a concrete example of the concept.
--
İ. Göktuğ Kayaalp <https://www.gkayaalp.com/>
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