From: Kaushal Modi <kaushal.modi@gmail.com>
To: emacs-org list <emacs-orgmode@gnu.org>
Subject: Re: Unable to retrieve :parameters for src-block [org-element]
Date: Tue, 17 Oct 2017 15:45:59 +0000 [thread overview]
Message-ID: <CAFyQvY2JOUH+OesTjWCkyk-=Wj0pnQucbkhmwxs8qqt9psMKZQ@mail.gmail.com> (raw)
In-Reply-To: <CAFyQvY17+XnrFvuq05NzCc5FPnJxnOBEjXkAia=c9fv0qHNPbA@mail.gmail.com>
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On Tue, Oct 17, 2017 at 8:51 AM Kaushal Modi <kaushal.modi@gmail.com> wrote:
> 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 comprehensive/literate version (Org file) of the same test case..
requires only ox-ascii.
=====
#+TITLE: Org Element :parameters parsing issue
* Activating debug
1. Hit =C-c C-c= on the below block, and allow its evaluation.
#+BEGIN_SRC emacs-lisp -n :eval no-export :results output silent
(defun debug/org-ascii-src-block (orig-fun &rest args)
"Print few debug messages before executing `org-ascii-src-block'."
(let* ((src-block (car args))
(switches (org-element-property :switches src-block))
(parameters (org-element-property :parameters src-block))
(number-lines (org-element-property :number-lines src-block)))
(message "[src-block dbg] number-lines: %S" number-lines)
(message "[src-block dbg] switches: %S" switches)
(message "[src-block dbg] parameters: %S" parameters))
(apply orig-fun args))
(advice-add 'org-ascii-src-block :around #'debug/org-ascii-src-block)
#+END_SRC
2. Do =C-c C-e t A= to export this file using Ascii backend, to a buffer.
/We do
not need to see the exported file, just the messages output by debug
messages
in above code snippet.
* Deactivating debug
Evaluate the below (and allow that evaluation) to deactivate these debug
messages.
#+BEGIN_SRC emacs-lisp :eval no-export :results output silent
(advice-remove 'org-ascii-src-block #'debug/org-ascii-src-block)
#+END_SRC
=====
After following the 2 steps in the "Activating debug" section, you will
find this in *Messages* buffer:
[src-block dbg] number-lines: (new . 0)
[src-block dbg] switches: "-n"
[src-block dbg] parameters: nil
[src-block dbg] number-lines: nil
[src-block dbg] switches: nil
[src-block dbg] parameters: nil
(First 3 messages are for the first code block, and the next 3 messages for
the second code block.)
Why is parameters always nil?
--
Kaushal Modi
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next prev parent reply other threads:[~2017-10-17 15:46 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-17 12:51 Unable to retrieve :parameters for src-block [org-element] Kaushal Modi
2017-10-17 15:45 ` Kaushal Modi [this message]
2017-10-17 16:31 ` Berry, Charles
2017-10-17 17:22 ` Kaushal Modi
2017-10-17 21:39 ` Berry, Charles
2017-10-18 21:20 ` Kaushal Modi
2017-10-18 23:19 ` Kaushal Modi
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