I was going to say the same: +fenced_divs and +bracketed_spans are associated with the input format (-f markdown) rather than the html output format, where they don't make sense, and they are enabled by default for Pandoc's Markdown both input and output.

Den tis 26 okt. 2021 10:36William Lupton <wlupton-QSt+ys/nuMyEUIsrzH9SikB+6BGkLq7r@public.gmane.org> skrev:
Hello,

I think that these extensions are associated with the input format (markdown) rather than the output format (html). I guess previous versions of pandoc must have been more permissive in this regard?

See below (and note that the extensions that you mentioned are all enabled by default for markdown input).

Hope this helps.

Cheers,
William

% pandoc --version
pandoc 2.14.1

% pandoc --list-extensions=markdown | egrep 'tables|divs|spans'
+bracketed_spans
+fenced_divs
+grid_tables
+multiline_tables
+native_divs
+native_spans
+pipe_tables
+simple_tables

% pandoc --list-extensions=html | egrep 'tables|divs|spans'
+native_divs
+native_spans

On Tue, 26 Oct 2021 at 07:42, jn <j.neubert-oT7SxkCgseY@public.gmane.org> wrote:
I use pandoc 1.7.5.4 in production for converting large md files, generated from databases, to html.

When I try to upgrade to pandoc 2.x, I get the following error:

$ ./pandoc-2.14.2 --standalone -t html+pipe_tables test_input.md
The extension pipe_tables is not supported for html

Same is true for the extensions fenced_divs and bracketed_spans, which also work fine with pandoc 1.7

OS is 4.19.205-gentoo-x86_64, pandoc was compiled from source with the flag "pandoc:embed_data_files"

$ ./pandoc-2.14.2 --version
pandoc-2.14.2 2.14.2
Compiled with pandoc-types 1.22, texmath 0.12.3.1, skylighting 0.11,
citeproc 0.5, ipynb 0.1.0.1


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