Support <kbd> in HTML

[jgm]

See https://developer.mozilla.org/en-US/docs/Web/HTML/Element/kbd

Please press <kbd>Ctrl</kbd>

would better be parsed as a Span with a special class kbd.
The writer should be sensitive to this as well, rendering such spans using <kbd>.

[salim-b]

While switching to Pandoc 2.8.x I've noticed that

echo "This is my [key]{.kbd} example" | pandoc --from=markdown --to=markdown-raw_attribute-inline_code_attributes

outputs

This is my [key]{.kbd} example

while

echo "This is my <kbd>key</kbd> example" | pandoc --from=markdown --to=markdown-raw_attribute-inline_code_attributes

outputs

This is my <kbd>key</kbd> example

I think it would be awesome if the former command would produce the same output as the latter since

Markdown allows you to insert raw HTML (or DocBook) anywhere in a document (...)

Currently inline code attributes seem like a one-way road to me...

[jgm]

Yes, but raw HTML is just passed through as raw HTML; it isn't parsed. (That's by design.)

[salim-b]

Yes, but raw HTML is just passed through as raw HTML; it isn't parsed. (That's by design.)

Well, since Pandoc 2.8, <kbd> isn't just "passed through" anymore as long as I don't explicitly disable the raw_attribute extension:

echo "This is my <kbd>key</kbd> example" | pandoc --from=markdown --to=markdown

yields:

This is my `<kbd>`{=html}key`</kbd>`{=html} example

[jgm]

That is just a pandoc-markdown syntax for explicitly marking up raw text in some format.
If you don't like it, disable the raw_attribute extension:

 % echo "This is my <kbd>key</kbd> example" | pandoc --from=markdown --to=markdown-raw_attribute
This is my <kbd>key</kbd> example

[salim-b]

That is just a pandoc-markdown syntax for explicitly marking up raw text in some format.

OK, I got that.

But somehow I still feel that

echo "This is my [key]{.kbd} example" | pandoc --from=markdown --to=markdown-inline_code_attributes

should then yield

This is my `<kbd>`{=html}key`</kbd>`{=html} example

instead of

This is my [key]{.kbd} example

(as I tried to explain in my first post)

Anyway, feel free to ignore this and focus on more important stuff 😄