GNU bug report logs - #50218
28.0.50; org-babel-tangle-file tangles code blocks starting with #+begin_src :tangle no

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From: Kyle Meyer <kyle <at> kyleam.com>
To: Tassilo Neubauer <tassilo.neubauer <at> gmail.com>
Cc: 50218 <at> debbugs.gnu.org
Subject: bug#50218: 28.0.50; org-babel-tangle-file tangles code blocks starting with #+begin_src :tangle no
Date: Sat, 18 Dec 2021 17:16:50 -0500

Tassilo Neubauer writes:

> Hello,
>
> Here are the steps that led to code blocks being tangled I did not 
> expect to:
>
> emacs -Q
> C-x C-h: ~/org-roam/example.org
> content of example.org (excluding "):
> "
> #+begin_src emacs-lisp
> (setq some-emacs-lisp-variable t)
> #+end_src
>
> #+begin_src :tangle no
> ;;This line should not be in the elisp code
> #+end_src
> "

(Sorry for the delayed reply.  This message, unlike the initial post,
will be redirected to the Org list, where you're more likely to get a
response.)

Org sees the last block above as a source block of language ":tangle".
Here's what org-element-at-point reports:

  (src-block (:language ":tangle" :switches nil :parameters "yes"...)

org-lint will complain about this block:

     2 nil   Missing colon in header argument "yes"

And, were you to use a bare source block (i.e. drop ":tangle no"), it
would complain about a missing language:

     2 nil   Missing language in source block

So, I think the source block is mis-specified, and I'm not sure there's
much that Org should do here, but perhaps others will chime in with
their thoughts.

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