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Strangely recognized non-lists and non-headers.
From: |
D |
Subject: |
Strangely recognized non-lists and non-headers. |
Date: |
Sun, 2 Feb 2020 11:11:02 +0100 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 |
Hi all,
while debugging org-superstar-mode I noticed something very strange, and
I am not sure if it's a bug in org or a bug in my understanding of org.
First off, an MWE for Org mode version 9.1.9 (release_9.1.9-65-g5e4542):
#+BEGIN_SRC C
/*
* This is a header?
+ this
+ is
* a list?
*/
#+END_SRC
This works. I can promote, demote, fold, etc. org-superstar also has no
issue with accepting these. I should add, this is the default config
(emacs -Q on Emacs 26.3). So no spooky stuff I believe on that end.
So I began digging.
I use org-list-in-valid-context-p as a quick hack to check if what I am
looking at is actually a list. Said predicate is a simple wrapper
around the function org-in-block-p being called with
org-list-forbidden-blocks. It is the the list of environments where
lists are not allowed.
Value: ("example" "verse" "src" "export")
There is also a very similar variable: org-protecting-blocks. This one
marks environments as quoted, disallowing org syntax.
Value: ("src" "example" "export")
Currently these two variables don't know of one another. Maybe the
latter should be a strict subset of the former?
Anyway, from what I have found org-in-block-p seems to not recognize src
blocks reliably. I wrote a small function to test this:
(defun nag ()
(interactive)
(when (org-list-in-valid-context-p)
(warn "You can make a list here! :(")))
And it seems, yes, you can make a list in a src block.
That's all very peculiar, what do you guys think?
- Strangely recognized non-lists and non-headers.,
D <=