Hello,
I am using the latest Org master.
I am trying to retrieving user-set parameters for a source block. While I am able to retrieve the :switches property for the src-block element, :parameters always returns as nil.
Here's a dummy version of the function I am using to parse source blocks in my custom exporter:
=====
(defun org-hugo-src-block (src-block _contents info)
(let ((lang (org-element-property :language src-block))
;; See `org-element-src-block-parser' for all SRC-BLOCK properties.
(switches (org-element-property :switches src-block))
(parameters (org-element-property :parameters src-block))
(number-lines (org-element-property :number-lines src-block))) ;Non-nil if -n or +n switch is used
(message "ox-hugo src [dbg] number-lines: %S" number-lines)
(message "ox-hugo src [dbg] switches: %S" switches)
(message "ox-hugo src [dbg] parameters: %S" parameters)))
=====
Here is the test Org snippet:
=====
#+BEGIN_SRC emacs-lisp -n :hl 1,3-4 :eval no
(message "This is line 1")
(message "This is line 2")
(message "This is line 3")
(message "This is line 4")
(message "This is line 5")
#+END_SRC
=====
(:hl 1,3-4 is something special that ox-hugo will handle.)
But on exporting that Org snippet, I get:
=====
ox-hugo src [dbg] number-lines: (new . 0)
ox-hugo src [dbg] switches: "-n"
ox-hugo src [dbg] parameters: nil
=====
If I put a debug statement directly in org-element-src-block-parser towards the end:
=====
;; SNIP
(message "dbg: parameters: %s" parameters)
(list 'src-block
(nconc
(list :language language
;; SNIP
=====
I get these in the *Messages*:
=====
dbg: parameters: :hl 1,3-4 :eval no [3 times]
=====
So it is clear that the parameters are read inside org-element-src-block-parser, but I don't understand why (org-element-property :parameters src-block) is unable to fetch the same.
Hints?